Claims:
1. An adjustable force measurement device (110) for a three-point hitch system of an agricultural tractor (105), said adjustable force measurement device (110) comprising:
a plurality of vertical adjustable frame members (114a, 114b), each removably coupled to at least a horizontal adjustable frame member (112) in a left-right configuration;
a plurality of apertures (118a) configured colinear within each said plurality of vertical adjustable frame members (114a, 114b) and said at least horizontal adjustable frame member (112) for enabling adjustable securing of a plurality of extending linkages (103) of said agricultural tractor (105) at a first end and a plurality of implement linkages (107) of an agricultural implement (108) at a second end;
at least a dynamometer (125) removably coupled to each said plurality of vertical adjustable frame members (114a, 114b) and to a plurality of vertical plates (120a, 120b) located at a center position on a top surface of said at least horizontal adjustable frame member (112), each said dynamometer (125) includes a plurality of calibrated sensing elements (136) located parallel each other horizontally and vertically within a plurality of slotted apertures (135) for measuring real time tractor-implement draft and quantifying three-point hitch multi directional forces acting on three-point linkages of said agricultural tractor (105).

2. The adjustable force measurement device (110) as claimed in claim 1, wherein each said dynamometer (125) has a horseshoe shaped structure with an outer frame member (130), a load cell / an inner frame member (134) with said plurality of slotted apertures (135), a central aperture (138) and a plurality of electrical cable connecting sockets (126).

3. The adjustable force measurement device (110) as claimed in claim 1 or claim 2, wherein said at least horizontal adjustable frame member (112) has a plurality of first pattern of apertures (117) of said plurality of apertures, for enabling removable adjustable coupling with said plurality of vertical adjustable frame members (114a, 114b).

4. The adjustable force measurement device (110) as claimed in any one of the preceding claims 1-3, wherein said plurality of calibrated sensing elements (136) are aligned within each said dynamometer (125) and said plurality of vertical adjustable frame members (114a, 114b), said at least horizontal adjustable frame member (112), said plurality of vertical plates (120a, 120b) are readily aligned with said plurality of extending linkages (103) and said plurality of implement linkages (107).

5. The adjustable force measurement device (110) as claimed in any one of the preceding claims 1-4, wherein each of said plurality of vertical adjustable frame member (114a, 114b) and said plurality of vertical plates (120a, 120b) have a plurality of second pattern of apertures (118a) and a plurality of third pattern of apertures (118b) of said plurality of apertures, on a second surface (116b) for enabling removable adjustable coupling with said plurality of extending linkages (103) at said first end and said plurality of implement linkages (107) of said second end interconnected with said dynamometer (125) coupled at said plurality of third pattern of apertures (118b).

6. The adjustable force measurement device (110) as claimed in any one of the preceding claims 1-5, wherein each said plurality of vertical adjustable frame member (114a, 114b) has a hollow box shaped configuration with a plurality of parallel wall members and a horizontal box member (115a, 115b) extending from a first surface (116a) of the parallel wall members, each box member having plurality of apertures of said plurality of apertures, for enabling removable coupling and adjustment of said plurality of vertical adjustable frame members (114a, 114b) on said at least a horizontal frame member (112).

7. The adjustable force measurement device (110) as claimed in any one of the preceding claims 1-6, wherein said plurality of vertical plates (120a, 120b) are secured to the top surface of said at least horizontal adjustable frame member (112) by a plurality of stiffeners (122).

8. The adjustable force measurement device (110) as claimed in any one of the preceding claims 1-7, wherein each said dynamometer (125) has a plurality of slotted openings (139) that enable assembly and disassembly of said load cell / an inner frame member (134) within said outer frame (130).

9. The adjustable force measurement device (110) as claimed in any one of the preceding claims 1-8, wherein the outer frame member (130) includes a plurality of legs (132a, 132b) having a plurality of fourth pattern of apertures (137) and an opening end (133) that enable removable coupling and adjustment of each said dynamometer while securing to the plurality of second pattern apertures (118b).

10. The adjustable force measurement device (110) as claimed in any one of the preceding claims 1-9, wherein said plurality of calibrated sensing elements (136) include strain gauges that sense all the three horizontal (x), longitudinal (y), and lateral (z) forces acting on the three-point linkages simultaneously in real time.
, Description:FORM 2
The Patents Act 1970
(39 of 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See Section 10 and Rule 13)

AN ADJUSTABLE FORCE MEASUREMENT DEVICE FOR A THREE-POINT HITCH SYSTEM

MAHINDRA & MAHINDRA LIMITED,
A COMPANY REGISTERED UNDER THE INDIAN COMPANIES ACT, 1913, HAVING ADDRESS AT MAHINDRA & MAHINDRA LIMITED, MAHINDRA RESEARCH VALLEY, MAHINDRA WORLD CITY, PLOT NO:41/1, ANJUR P.O., CHENGALPATTU, TAMILNADU – 603004, INDIA

THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE NATURE OF THIS INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED. 

TECHNICAL FIELD
[001] The present invention relates to an adjustable force measurement device for a three-point hitch system adaptable to a wide variety of standard and non-standard agricultural implements and a wide range of agricultural tractors for measuring real time tractor-implement draft and quantifying three-point hitch multi directional forces acting on three-point linkages, for evaluating agricultural tractor design, optimizing weight distribution within agricultural tractor, thereby improving performance and specific fuel consumption of the agricultural tractor.

BACKGROUND
[002] Generally, selection of a suitable agricultural tractor in combination with a suitable agricultural implement plays a significant role in optimizing weight of the agricultural tractor for achieving optimized performance of the agricultural tractor during operation. While optimizing the weight of the agricultural tractor, it is of a great importance to understand required tractor- implement draft acting between the agricultural tractor and the implement and quantify three-point hitch forces acting on three-point linkages in horizontal (x), vertical (y), and lateral (z) directions that aids in selection of suitable agricultural implement equipment resulting in horsepower mapping of the agricultural tractor. The quantified three-point hitch force parameter values aid while designing and evaluating the agricultural implement design and weight distribution within agricultural tractor design.

[003] Conventional, force sensing instruments and methods employed for quantifying three-point hitch forces acting upon three-point hitch linkages are not suitable to measure forces in x, y, and z directions i.e., in all three directions simultaneously and therefore, multiple sensing instruments one or more for each top link, lower link, fixed and adjustable lift rods of the three-pint hitch linkages are required to be employed for quantifying a force in each direction separately. Thus, the whole instrumentation assembling process requires extensive labour, becomes expensive and time consuming. Also, the sensing instruments need to be accurately aligned with three-point linkages of the agricultural tractor to achieve desired quantification data accurately, making conventional systems and methods inefficient.
[004] Further, such conventional systems and methods cannot be readily employed with all existing agricultural implements of various standard and non-standard sizes. Thus, conventional three-point hitch force data obtained for the implement of a particular size is not suitable to optimize weight of the agricultural tractor. Presently available 3D load cell instruments are expensive, require additional adapter design to be employed and thus are not directly suitable for tractor field data measurement.
[005] Therefore, there is a need for a solution for a device to address and overcome one or more problems of the prior art.

SUMMARY
[006] This summary is provided to introduce concepts related to an adjustable device for a vehicle. This summary is neither intended to identify essential features of the present invention nor is it intended for use in determining or limiting the scope of the present invention.
[007] Accordingly, an aspect of the present invention discloses an adjustable force measurement device for a three-point hitch system of an agricultural tractor, said adjustable force measurement device comprising: a plurality of vertical adjustable frame members, each removably coupled to at least a horizontal adjustable frame member in a left-right configuration; a plurality of apertures configured colinear within said plurality of vertical adjustable frame members and said at least horizontal adjustable frame member for enabling adjustable securing of a plurality of extending linkages of said agricultural tractor at a first end and a plurality of implement linkages of an agricultural implement at a second end; at least one dynamometer removably coupled to said each plurality of vertical adjustable frame members and to a plurality of vertical plates located at a center position on a top surface of said at least horizontal adjustable frame member, each said dynamometer includes a plurality of calibrated sensing elements located parallel each other horizontally and vertically within a plurality of slotted apertures for measuring real time tractor-implement draft and quantifying three-point hitch multi directional forces acting on three-point linkages of said agricultural tractor, thereby enabling evaluation and optimization of agricultural tractor weight distribution, for improving performance and specific fuel consumption of the agricultural tractor.

BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS
[008] The above and other aspects, features, and advantages of certain exemplary embodiments of the present invention will be more apparent from the following description taken in conjunction with the accompanying drawings in which:
[009] Figure 1 illustrates a front view and an isometric view of an exemplary indicative implementation of an adjustable force measurement device for a three-point hitch system configured to an agricultural tractor and an agricultural implement, according to an aspect of the present invention;
[0010] Figure 2, referring Figure 2A illustrates an exploded view showing the exemplary indicative implementation of the adjustable force measurement device and referring Figure 2B illustrates a front view and an isometric view showing the exemplary indicative implementation of the assembled adjustable force measurement device, according to the embodiment of the present invention;
[0011] Figure 3 illustrates a detailed view showing the exemplary indicative implementation of the adjustable force measurement device modular dynamometer frame according to the embodiment of the present invention;
[0012] Figure 4 illustrates a detailed view showing the exemplary indicative implementation of a dynamometer according to the embodiment of the present invention;
[0013] Figure 5 illustrates an isometric view showing the exemplary indicative implementation of test calibration of the dynamometer according to the embodiment of the present invention; and
[0014] Figure 6 illustrates a graph showing experimental test field data comparison of conventional and the adjustable force measurement device for the three-point hitch system, according to the embodiment of the present invention.
[0015] Persons skilled in the art will appreciate that elements in the figures are illustrated for simplicity and clarity and may have not been drawn to scale. For example, the dimensions of some of the elements in the figure may be exaggerated relative to other elements to help to improve understanding of various exemplary embodiments of the present disclosure. Throughout the drawings, it should be noted that like reference numbers are used to depict the same or similar elements, features, and structures.

DETAILED DESCRIPTION
[0016] In the following description, for the purpose of explanation, specific details are set forth in order to provide an understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known structures are shown in diagram form to facilitate describing the invention. One skilled in the art will recognize that embodiments of the present invention, some of which are described below, may be incorporated into several applications.
[0017] In general, the present invention claims an adjustable force measurement device for the three-point hitch system comprising: a plurality of vertical adjustable frame members, each removably coupled to at least a horizontal adjustable frame member in a left-right configuration; at least a dynamometer removably coupled to said each plurality of vertical adjustable frame members and to a plurality of vertical plates, each said dynamometer includes a plurality of calibrated sensing elements located parallel each other horizontally and vertically within a plurality of slotted apertures for measuring real time tractor-implement draft and quantifying three-point hitch multi directional forces acting on three-point linkages of said agricultural tractor, thereby enabling evaluation and optimization of agricultural tractor weight distribution, for improving performance and specific fuel consumption of the agricultural tractor.
[0018] According to the present invention, the adjustable force measurement device for the three-point hitch system is adaptable to category 1 (CAT1) and category 2 implements available in market for a range of 20 to 60 horsepower tractors and be readily employed with all existing agricultural implements of various standard and non-standard sizes. By adaption of the adjustable force measurement device for the three-point hitch system of the present invention instrumentation assembling time is very less with significant reduction in labour when compared with conventional systems and methods. Further, the sensing instruments are accurately aligned with three-point linkages of the agricultural tractor to achieve desired quantification data accurately. Therefore, it is cost saving for the investigators in repeatable design of adjustable force measurement device for the three-point hitch system of the specific tractor. The adjustable force measurement device allows use of a power take-off (PTO) shaft without any interruption. The adjustable force measurement device is directly suitable for tractor field data measurement. Data parameters gathered from the adjustable force measurement device may be used for weight distribution evaluation and the development of lightweight agricultural tractor and selection of suitable implement for optimized performance and to achieve the less specific fuel consumption.
[0019] According to the present invention, compact and less weight adjustable force measurement device is optimized by field data comparison analysis of three-point hitch frame designed with various less weight and strong alloys materials to achieve easy assembly and to reduce the additional weight to avoid the adverse effect on dynamics on the three-point linkage of agricultural tractor.
[0020] In the present invention, according to an exemplary embodiment, each loadcell located with a dynamometer consists of a total of eight strain gauges that sense all the three longitudinal, horizontal, and lateral forces acting on the three-point linkages simultaneously in real time. Prior to assembling of the dynamometer to a three-point linkage modular frame calibration of the dynamometer is done to record its sensitivity and later use to quantify the force acting on them. The three-point hitch / linkage modular frame with at least a dynamometer is connected between the agricultural implement and the agricultural tractor at the three-point linkages. Field verification is done where the adjustable force measurement device for the three-point hitch system in operation condition is tested, and the data is collected using a data logger from the plurality of dynamometers. Experimental test field data comparison of conventional and the adjustable force measurement device for the three-point hitch system of the present patent application results in a 90 percent of the accuracy, thereby evaluating agricultural tractor design, optimizing weight distribution within agricultural tractor, improving performance and specific fuel consumption of the agricultural tractor.
[0021] While this invention is susceptible of embodiments in many different forms, there is shown in the drawings and will herein be described in detail, a preferred embodiment of the invention with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the broad aspects of the invention to the embodiment illustrated. Other aspects, advantages, and salient features of the invention will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses exemplary embodiments of the invention.
[0022] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the invention. Accordingly, it should be apparent to those skilled in the art that the following description of exemplary embodiments of the present invention are provided for illustration purpose only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents. The skilled person will be able to devise various arrangements that, although not explicitly described herein, embody the principles of the present invention. All the terms and expressions in the description are only for the purpose of the understanding and nowhere limit the invention. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein may be made without departing from the scope of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness. Terms first, second, front, rear, top, bottom, left, right, horizontal, vertical, parallel, perpendicular, patterns, plurality, degrees of freedom, colinear and the like are used to differentiate between objects having the same terminology and are in no way intended to represent a chronological order, unless where explicitly stated otherwise. Moreover, all statements herein reciting principles, aspects, and embodiments of the invention, as well as specific examples thereof, are intended to encompass equivalents thereof.
[0023] Referring figures 1-6, discloses an agricultural tractor (100), an adjustable force measurement device (110), an agricultural implement (108), a three-point linkage (105), a plurality of extending linkages (103), a top tractor linkage securing end (104) and a plurality of bottom tractor linkage securing ends (102), a plurality of implement linkages (107), a plurality of top implement securing ends (106a) and a plurality of bottom implement securing ends (106b), at least a horizontal adjustable frame member (112), a plurality of vertical adjustable frame members (114a, 114b), a plurality of horizontal box members (115a, 115b), a first surface (116a) and a second surface (116b), a plurality of first pattern of apertures (117), a plurality of second pattern of apertures (118a), a plurality of third pattern of apertures (118b), a plurality of vertical plates (120a, 120b), a plurality of stiffeners (122), at least a dynamometer (125), a plurality of cable connecting sockets (126), an outer frame member (130), a plurality of legs (132a, 132b), an opening end (133), a load cell / an inner frame member (134), a plurality of slotted apertures (135), a plurality of sensing elements (136), a plurality of fourth pattern of apertures (137), a plurality of a central aperture (138), a plurality of slotted openings (139), and a calibration system (140).
[0024] Accordingly, the present invention discloses an adjustable force measurement device (110) adaptable to a three-point linkage of an agricultural tractor (105) at a first end and an agricultural implement (108) at a second end. The three-point linkage of the agricultural tractor (105) is thus positioned intermediate the agricultural tractor (100) and the agricultural implement (108). The three-point linkage of the agricultural tractor (105) has a plurality of extending linkages (103). A top tractor linkage securing end (104) and a plurality of bottom tractor linkage securing ends (102) of the plurality of extending linkages (103) enable coupling with the adjustable force measurement device (110) at said first end of the adjustable force measurement device (110). Likewise, the agricultural implement (108) has a plurality of implement linkages (107). A plurality of top implement securing ends (106a) and a plurality of bottom implement securing ends (106b) enable coupling with the adjustable force measurement device (110) at said second end of the adjustable force measurement device (110).
[0025] The adjustable force measurement device (110) according to an aspect of the present invention comprises at least a horizontal adjustable frame member (112) with a plurality of first pattern of apertures (117), a plurality of vertical adjustable frame members (114a, 114b), each coupled to said at least a horizontal adjustable frame member (112) in a left-right configuration. A plurality of fastening elements that include but not limited to nut and bolts engage with said plurality of first pattern of apertures (117) enable removable coupling of said plurality of vertical adjustable frame members (114a, 114b). The plurality of vertical adjustable frame member (114a, 114b) has a hollow box shaped configuration with a plurality of parallel wall members. Each said vertical adjustable frame member (114a, 114b) has a horizontal box member (115a, 115b) extending from a first surface (116a) of the parallel wall members. Each said horizontal box member (115a, 115b) has a plurality of apertures configured to receive said fastening elements engaged with said plurality of first pattern of apertures (117) for enabling removable coupling and adjustment of said plurality of vertical adjustable frame members (114a, 114b) on said at least a horizontal frame member (112).
[0026] The adjustable force measurement device (110) further comprises a plurality of vertical plates (120a, 120b) located at a center position on a top surface of said at least horizontal adjustable frame member (112) and are secured to the top surface by a plurality of stiffeners (122). Each of second surface (116b) of the vertical adjustable frame member (114a, 114b) has a plurality of second pattern of apertures (118a) and a plurality of third pattern of apertures (118b). Further, the plurality of vertical plates (120a, 120b) also includes said plurality of second pattern of apertures (118a) and said plurality of third pattern of apertures (118b). The plurality of second pattern of apertures (118a) enable removable coupling and adjustment, while securing said top tractor linkage securing end (104) and said plurality of bottom tractor linkage securing ends (102) of the plurality of extending linkages (103) of said three-point linkage of the agricultural tractor (105) at said first end. At least a dynamometer (125) is coupled at said plurality of third pattern of apertures (118b). Each said dynamometer (125) has a horseshoe shaped structure with an outer frame member (130) to which a plurality of cable connecting sockets (126) are configured that enable electrical connection for enabling data gathering from the dynamometers (125). The outer frame member (130) includes a plurality of legs (132a, 132b) having a plurality of fourth pattern of apertures (137) and an opening end (133) that enable removable coupling and adjustment of each said dynamometer while securing to the plurality of second pattern apertures (118b). Each said dynamometer (125) further comprises a load cell / an inner frame member (134) with a plurality of slotted apertures (135) and a central aperture (138). A plurality of sensing elements (136) are located parallel each other horizontally and vertically within said plurality of slotted apertures (135). The specific arrangement of said plurality of sensing elements enable multi-axial force measurement and draft measurement of the dynamometer (125) in real time. Each said dynamometer (125) further comprises a plurality of slotted openings (139) that enable assembly and disassembly of said load cell / an inner frame member (134) within said outer frame (130). The plurality of top implement securing ends (106a) and said plurality of bottom implement securing ends (106b) of said plurality of implement linkages (107) of the agricultural implement (108) have a plurality of apertures that enable removable coupling of said implement linkages with said central aperture (138) at said second end.
[0027] As, said at least horizontal adjustable frame member (112), said plurality of vertical adjustable frame members (114a, 114b), said plurality of horizontal box members (115a, 115b), said plurality of vertical plates (120a, 120b), said plurality of legs (132a, 132b) of each said dynamometer (125), have apertures that include but not limited to said plurality of first pattern of apertures (117), said plurality of second pattern of apertures (118a), said plurality of third pattern of apertures (118b), said plurality of fourth pattern of apertures (137), and said plurality of a central apertures (138), the top tractor linkage securing end (104) and the plurality of bottom tractor linkage securing ends (102) at said first end and said plurality of top implement securing ends (106a) and said plurality of bottom implement securing ends (106b) at said second end are removably coupled and adjusted as per requirement i.e. a wide variety of standard and non-standard agricultural implements and a wide range of agricultural tractors for measuring real time tractor-implement draft and quantifying three-point hitch multi directional forces acting on three-point linkages, for evaluating agricultural tractor design, optimizing weight distribution within agricultural tractor, thereby improving performance and specific fuel consumption of the agricultural tractor. The load cells / dynamometer (125) is calibrated with a calibration system (140) prior to assembly within the adjustable force measurement device (110).
[0028] Referring to Figures 1-6, the present patent application discloses an adjustable force measurement device (110) for a three-point hitch system of an agricultural tractor (105), said adjustable force measurement device (110) comprising: a plurality of vertical adjustable frame members (114a, 114b), each removably coupled to at least a horizontal adjustable frame member (112) in a left-right configuration; a plurality of apertures configured colinear within said plurality of vertical adjustable frame members (114a, 114b) and said at least horizontal adjustable frame member (112) for enabling adjustable securing of a plurality of extending linkages (103) of said agricultural tractor (105) at a first end and a plurality of implement linkages (107) of an agricultural implement (108) at a second end; at least a dynamometer (125) removably coupled to said plurality of vertical adjustable frame members (114a, 114b) and to a plurality of vertical plates (120a, 120b) located at a center position on a top surface of said at least horizontal adjustable frame member (112), each said dynamometer (125) includes a plurality of calibrated sensing elements (136) located parallel each other horizontally and vertically within a plurality of slotted apertures (135) for measuring real time tractor-implement draft and quantifying three-point hitch multi directional forces acting on three-point linkages of said agricultural tractor (105), thereby enabling evaluation and optimization of agricultural tractor weight distribution, for improving performance and specific fuel consumption of the agricultural tractor (105).
[0029] According to an embodiment of the present invention, each said dynamometer (125) has a horseshoe shaped structure with an outer frame member (130), a load cell / an inner frame member (134) with said plurality of slotted apertures (135), a central aperture (138) and a plurality of electrical cable connecting sockets (126).
[0030] According to the embodiment of the present invention, said at least horizontal adjustable frame member (112) has a plurality of first pattern of apertures (117), for enabling removable adjustable coupling with said plurality of vertical adjustable frame members (114a, 114b).
[0031] According to the embodiment of the present invention, said plurality of calibrated sensing elements (136) are readily aligned within each said dynamometer (125) and said plurality of vertical adjustable frame members (114a, 114b), said at least horizontal adjustable frame member (112), said plurality of vertical plates (120a, 120b) are readily aligned with said plurality of extending linkages (103) and said plurality of implement linkages (107).
[0032] According to the embodiment of the present invention, each of said plurality of vertical adjustable frame member (114a, 114b) and said plurality of vertical plates (120a, 120b) have a plurality of second pattern of apertures (118a) and a plurality of third pattern of apertures (118b) on a second surface (116b) for enabling removable adjustable coupling with said plurality of extending linkages (103) at said first end and said plurality of implement linkages (107) of said second end interconnected with at least said dynamometer (125) coupled at said plurality of third pattern of apertures (118b).
[0033] According to the embodiment of the present invention, each said plurality of vertical adjustable frame member (114a, 114b) has a hollow box shaped configuration with a plurality of parallel wall members and a horizontal box member (115a, 115b) extending from a first surface (116a) of the parallel wall members, each box member having plurality of apertures for enabling removable coupling and adjustment of said plurality of vertical adjustable frame members (114a, 114b) on said at least a horizontal frame member (112).
[0034] According to the embodiment of the present invention, said plurality of vertical plates (120a, 120b) are secured to the top surface of said at least horizontal adjustable frame member (112) by a plurality of stiffeners (122).
[0035] According to the embodiment of the present invention, each said dynamometer (125) has a plurality of slotted openings (139) that enable assembly and disassembly of said load cell / an inner frame member (134) within said outer frame (130).
[0036] According to the embodiment of the present invention, the outer frame member (130) includes a plurality of legs (132a, 132b) having a plurality of fourth pattern of apertures (137) and an opening end (133) that enable removable coupling and adjustment of each said dynamometer while securing to the plurality of second pattern apertures (118b).
[0037] According to the embodiment of the present invention, said plurality of calibrated sensing elements (136) include strain gauges that sense all the three horizontal (x), longitudinal (y), and lateral (z) forces acting on the three-point linkages simultaneously in real time.
[0038] Thus, with the teachings of the present invention, weight of the agricultural tractor is optimized and distributed for achieving optimized performance of the agricultural tractor during operation. Further, required tractor- implement draft and three-point hitch forces acting on three-point linkages in horizontal (x), vertical (y), and lateral (z) directions simultaneously in real time are quantified that aids in selection of suitable agricultural implement equipment resulting in horsepower mapping of the agricultural tractor. The assembling process of the dynamometer is simple robust economical requires less labour, becomes expensive. Also, accurate alignment of the dynamometer sensing elements and the dynamometer with the three-point linkages of the agricultural tractor and implement is made possible to achieve desired quantification. The adjustable force measurement device for the three-point hitch system may be readily employed to all existing agricultural implements of various standard and non-standard sizes.
[0039] There have been described and illustrated herein several embodiments of exemplary indicative implementation of the adjustable force measurement device (110) for tractors and implements. It will be also apparent to a skilled person that the embodiments described above are specific examples of a single broader invention, which may have greater scope than any of the singular descriptions taught. There may be many alterations made in the description without departing from the scope of the invention. The present invention is simple in construction and design, integrated, portable, cost effective and easy to manufacture. While particular embodiments of the invention have been described, it is not intended that the invention be limited said configuration disclosed thereto, as it is intended that the invention be as broad in scope as the art will allow and that the specification be read likewise. Thus, while particular structure specific type of arrangement of elements, type of configurations, numbers, have been disclosed, it will be appreciated that the embodiments may be manufactured with other design parameters and configurations as well. Accordingly, the material strength of the frame members, number and arrangement of sensing elements, frame member, apertures, are not limited thereto and may be as per operational requirements and nowhere limits the scope of the invention. Known materials may be used for the components of the adjustable device as per operational requirements and nowhere limits the scope of the invention. The type of materials, dimensions, degrees of freedom in terms of adjustability, welds, fastening elements are not limited to those described herein above. Thus, while particular structure with said configurations has been disclosed, it will be appreciated that the embodiments may be manufactured with other design parameters as well. Further, the methods and configuration of the system, are provided only for reference and for understating purpose of the invention. The scope of the invention should, therefore, be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. In the appended claims, the terms “including” is used as the plain-English equivalent of the respective term “comprising” respectively.