Description:A) TECHNICAL FIELD
[001] The present invention generally relates to a Beltguard (1) which is a safety equipment used for covering the electric motor (5), electric motor pulley (8), reciprocating compressor flywheel (9) and belt (7) transmitting power from the electric motor pulley (8) to flywheel (9). The present invention particularly relates to a beltguard (1) and provides the arrangement for adjustment of length for the variation in the centre distance between electric motor (5), electric motor pulley (8) and flywheel (9). The beltguard (1) is split into 3 subassemblies, because of this the assembly and dismantling of beltguard (1) becomes easy. 3 subassemblies of beltguard (1) can be separated from each other and they can be dismantled easily.
B) BACKGROUND OF INVENTION
[002] The prior art cases describe a beltguard for a fixed centre distance. The existing beltguard (1) is designed as per the centre distance between the electric motor, electric motor pulley (8) and flywheel (9) of a compressor. When the compressor model changes, the distance between the electric motor pulley (8) and flywheel (9) also changes. In this case the beltguard cannot adjust its length so as to accommodate the variation in the centre distance between the flywheel (9) and electric motor pulley (8). As the beltguard cannot change its length as per the requirement, the beltguard cannot be used for variety of compressor models.
[003] For different compressor models different drive arrangements are required. Thus, the centre distances between the electric motor, electric motor pulley and flywheel of a compressor changes for different models. This leads to design a specific beltguard (1) for particular model. This increases engineering time and cost for every compressor model as per project/order requirement.
[004] Unlike the prior art the beltguard (1) in the present invention to be patented has arrangement to change its length. This allows the beltguard (1) to cover the belt (7) along with flywheel (9) and electric motor pulley (8) of the compressor with different centre distances between flywheel (9) and electric motor pulley (8). The new beltguard (1) invention overcomes the limitation of fixed centre distance between the driver and driven pulley, in this case the electric motor (5), electric motor pulley (8) and flywheel (9) of compressor. The beltguard (1) in the present invention has been invented by analyzing the current issues in beltguard assembly, to accommodate desired centre distance between driver and driven pulley for different compressor models. The beltguard in the present invention (1) is made in 3 subassemblies. The subassembly 12 is fixed on the baseframe (6). The subassembly 11 is mounted on subassembly 12. The subassembly 13 is mounted on the baseframe (6) in such a way that it can slide over the baseframe channel (6). The baseframe (6) has a channel (61) consisting of a slot so that the subassembly 13 can be fixed at desired location on the baseframe 6. The subassembly 13 can also slide between the subassembly 11 and 12. The slot provided on the metal plate (111, 121, 131, 135) of subassembly 11, 12 and 13 helps to fix the subassembly 13 at desired position. By changing the position of subassembly 13 with respect to subassembly 11 and 12 the beltguard (1) can be used for different centre distance of the driver and driven pulley. When the compressor model is changed, the centre distance between the flywheel (9) and electric motor (5), electric motor pulley (8) also changes. As the new beltguard (1) can adjust its position with respect to the variation in centre distance; it can be used for different compressor models.
[005] The above-mentioned shortcomings, disadvantages and problems are addressed herein, as detailed below.

C) OBJECT OF INVENTION
[006] The primary objective of the present invention is to design a Beltguard (1) for adjustable centre distance between electric motor pulley (8) and flywheel (9) of a reciprocating air compressor.
[007] Another objective of the present invention is to design a Beltguard (1) which can be used for different compressor models who have different centre distance between flywheel (9) and electric motor pulley (8).
[008] Yet another objective of the present invention is to provide a Beltguard (1) that can be split into 3 subassemblies. This makes the assembly and dismantling of the Beltguard (1) easy.
[009] These and other objects and advantages of the embodiments herein will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings.

D) SUMMARY OF INVENTION
[0010] The beltguard (1) acts as a cover over the arrangement of electric motor pulley (8) – belt (7) – flywheel (9). The beltguard (1) is made up of L-channel angle (14), metal mesh (15), metal plate (111, 121, 131, 135) with slots handle (132) and mounting channel (8). The beltguard (1) is mounted on baseframe (6) of compressor assembly. It has control panel (3) on the flywheel (9) side, canopy pillar (4) in front of the beltguard (1), compressor bare (2) and baseframe stool behind and canopy top cover above it. This makes it difficult to place and remove the beltguard (1) from its position. Therefore, to overcome this difficulty the beltguard (1) is split into 3 unique subassemblies (11, 12, 13).
[0011] According to one embodiment of the present invention, the arrangement of beltguard (1) is such that subassembly 12 is fixed over the baseframe (6). Subassembly 11 is mounted over the subassembly 12 and it cannot rotate or translate in any direction. Subassembly 13 is mounted separately over the baseframe (6).
[0012] According to one embodiment of the present invention, the baseframe (6) has slot over it so that subassembly 13 can translate in X-direction and slide freely on the baseframe (6). The slot provided on the baseframe (6) also allows the subassembly 13 to be fixed with the baseframe (6) at desired location. Also because of the slot provided on the metal plate (111, 121, 131, 135) on subassembly 11, 12 and 13, the subassembly 13 slides over the assembly 11 and subassembly 12. Thus, when the centre distance between electric motor pulley (8) and compressor flywheel (9) changes, the changes in the centre distance can be accommodated by the translation of subassembly 13.
[0013] According to one embodiment of the present invention, the dismantling of beltguard (1) from its position through the canopy door (4) is such that first the subassembly 13 translates in Y-direction (+), translates in X-direction (-) and Z-direction (-). Then the subassembly 11 rotates around Z-axis, translates in X-direction and then translates in Z-direction. Subassembly 12 rotates around Z-axis translate in X-direction. Thus because of the split of beltguard (1) into 3 unique subassemblies (11,12, 13) and the degrees of freedom provided to each subassembly the assembly and dismantling of the beltguard (1) becomes easily possible.
[0014] According to one embodiment of the present invention , subassembly (11, 12, 13) consists of L-channel angle (14), metal mesh (IS:412) (15) and metal plate (111, 121, 131, 135 ) consisting of slots for length adjustment. Subassembly 12 slides over subassembly 11 for length adjustment.
[0015] According to one embodiment of the present invention, the subassembly 11, 12 and 13 are connected with the help of fasteners. The cylindrical shape of the slot provided on the metal plates (111, 121, 131, 135) is responsible for the length adjustment which is one of the main functions of the proposed beltguard (1).
[0016] These and other aspects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.
E) BRIEF DESCRIPTION OF DRAWINGS
[0017] The other objects, features and advantages will occur to those skilled in the art from the following description of the preferred embodiment and the accompanying drawings in which:
[0018] FIG. 1 illustrates a perspective view of the Beltguard (1) mounted on baseframe (6) of compressor assembly., according to one embodiment of the present invention.
[0019] FIG. 2 illustrates a sectional view of the Beltguard (1) mounted on baseframe (6) of compressor assembly and enclosing the arrangement of electric motor pulley (8) – belt (7) – flywheel (9)., according to one embodiment of the present invention.
[0020] FIG. 3 illustrates an dissected view of the subassemblies (11,12,13) of the Beltguard (1), according to one embodiment of the present invention.
[0021] FIG. 4 illustrates a sectional view of the beltguard and various components thereof, according to one embodiment of the present invention.
[0022] Serial Numbers and Description of component
Serial number Name/ Description of Component
1 Beltguard
2 Compressor bare
3 Control panel
4 Canopy pillar
5 Electric motor
6 Baseframe
7 Belt
8 Electric motor pulley
9 Flywheel
11 Subassembly 1
12 Subassembly 2
13 Subassembly 3
14 L – channel angle
15 Metal mesh
111 Metal plate with slots
112 Stiffners
121 Metal plate with slots
122 Mounting channel
123 Mounting channel
124 Stiffners
131 Metal plate with slots
132 Handle
133 Mounting channel
134 Stiffners
135 Metal plate with slots

F) DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] Beltguard (1) used in reciprocating compressor is of 1.5 meters to 2.5 meters of length and are used for safety of the operator who is working near it. The Beltguard (1) provides protection from various moving components such as belt (7) , electric motor (5), electric motor pulley (8) and flywheel (9). The belt (7) connects the electric motor pulley (8) and flywheel (9). The belt (7) transmits the electric motor power to the flywheel of the compressor bare (2). Electric motor (5) is used to drive the compressor by converting the electrical energy into mechanical energy. Electric motor pulley (8) is mounted on the motor shaft and acts as a driver pulley for the belt drive transmission. Flywheel (9) is used to store the motor energy and reduce the speed fluctuations during the compressor operations. The power to the compressor comes from an electric motor (5) and is transmitted from the motor (5) - pulley (8) – belt (7) – flywheel (9) - compressor. Thus, the Beltguard (1) is a safety equipment which is used for covering the electric motor (5), electric motor pulley (8), reciprocating compressor flywheel (9) and belt (7) transmitting power from electric motor pulley (8) to flywheel (9).
[0024] The Beltguard (1) is made up of L-channel angle (14), metal mesh (15), metal plate (111, 121, 131, 135) with slots, handle (132) and mounting channel (8), stiffners (__). The L-channel angle (14) is a structural component which carries the weight of the beltguard (1) and provides strength. The Metal mesh (15) prevents the user from rotating components such as electric motor pulley (8), belt (7) and flywheel (9). The metal plate with slots (111, 121, 131, 135) provides for an arrangement for fixing the subassemblies and also contains slots to make length adjustments to the beltguard (1). The Stiffners (___) provide strength to the metal mesh. The mounting channel (8 ) is a structural member which supports the beltguard. The beltguard (1) is mounted on baseframe (6) of compressor assembly. It has control panel (3) on the flywheel (9) side, canopy pillar (4) in front of the beltguard (1), compressor bare (2) and baseframe stool behind and canopy top cover above it. The Compressor bare (2) is used to compress the air with help of motor power through belt drive components. The Baseframe (6) is the main platform on which all the package components of the compressor are mounted. The Canopy pillar (4) is a structural component of canopy of compressor. Canopy is an enclosure which is used to isolate the noise produced by compressor. The Control panel (3) provides for power supply and instrument control mechanism.
This makes it difficult to place and remove the beltguard (1) from its position. Therefore, to overcome this difficulty the Beltguard (1) is split into 3 unique subassemblies (11, 12, 13).
[0025] The existing beltguards are designed for a fixed centre distance and cannot be adjusted in length. For different compressor models different drive arrangements are required. Thus, the center distances between the electric motor, electric motor pulley and flywheel of a compressor changes for different models. This leads to a specific beltguard to be designed for a particular compressor model. This increases engineering time and cost for every compressor model as per requirement.
[0026] In the present invention, the Beltguard (1) can be adjusted for a varied range of centre distances of electric motor pulley (8) to flywheel (9). The slots provided on the metal plate (111, 121, 131, 135) along with the slot provided on the baseframe (6) channel below the mounting channel (8) is responsible for the movement of subassembly 13 over the subassembly 11 and 12 also for the movement of subassembly 13 over the baseframe (6) channel. Thus, a standardized Beltguard (1) can be used for different compressor models with varying centre distances.
[0027] As seen in Fig. 3, the arrangement of Beltguard (1) is such that subassembly 12 is fixed over the baseframe (6). Subassembly 11 is mounted over the subassembly 12 and it cannot rotate or translate in any direction. Subassembly 13 is mounted separately over the baseframe (6). The baseframe (6) has Cylindrical shaped slots over it so that subassembly 13 can translate in X-direction and slide freely on the baseframe (6). The slot provided on the baseframe (6) also allows the subassembly 13 to be fixed with the baseframe (6) at desired location. Also because of the slot provided on the metal plate (111, 121, 131, 135 ) on subassembly 11, 12 and 13, the subassembly 13 slides over the assembly 11 and subassembly 12. Thus, when the centre distance between electric motor pulley (8) and compressor flywheel (9) changes, the changes in the centre distance can be accommodated by the translation of subassembly 13. This allows using the same beltguard (1) for various compressor models. METAL PRESS ANGLE
[0028] As seen in Fig. 3, the dismantling of beltguard (1) from its position through the canopy door (4) is such that first the subassembly 13 translates in Y-direction (+), translates in X-direction (-) and Z-direction (-). Then the subassembly 11 rotates around Z-axis, translates in X-direction and then translates in Z-direction. Subassembly 12 rotates around Z-axis translate in X-direction. Thus because of the split of Beltguard (1) into 3 subassemblies (11, 12, 13) and the degrees of freedom provided to each subassembly, the assembly and dismantling of the Beltguard (1) is easily possible.
[0029] As seen in Fig. 4, subassembly 11, 12 and 13 consists of L-channel angle (14), metal mesh (15) and metal plate (111, 121, 131, 135) consisting of slots for length adjustment. Subassembly 12 slides over subassembly 11 for length adjustment. The subassembly 11, 12 and 13 are connected with the help of fastening means. The Cylindrical shaped slots provided on the metal plates (111, 121, 131, 135 ) is responsible for the length adjustment which is one of the main functions of the present invention describing the Beltguard (1).
[0030] The Beltguard (1) can accommodate variation in the centre distance between electric motor (5), electric motor pulley (8) and a flywheel (9) in a reciprocating air compressor.
[0031] Owing to the invention as described, comprising of the feature to accommodate varying centre distances between electric motor (5), electric motor pulley (8) and flywheel (9), a standardized Beltguard (1) can be used for different compressor models.
[0032] The Beltguard (1) of the present invention can be used for different compressor models and promotes mass production of the Beltguard.
[0033] The Beltguard (1) of the present invention is cost effective.
[0034] The Beltguard (1) of the present invention can be used for air compressors that involve the mechanism of belt transmission.
[0035] The Beltguard (1) of the present invention can be used in other machinery where belt transmissions are used.
[0036] In the following detailed description, a reference is made to the accompanying drawings that form a part hereof, and in which the specific embodiments that may be practiced is shown by way of illustration. The embodiments are described in sufficient detail to enable those skilled in the art to practice the embodiments and it is to be understood that the logical, mechanical and other changes may be made without departing from the scope of the embodiments. The following detailed description is therefore not to be taken in a limiting sense.

G) ADVANTAGES OF THE INVENTION
[0037] The present invention provides for a beltguard (1) that can be used for reciprocating air compressors with variation in the centre distance between electric motor (5), electric motor pulley (8) and a flywheel (9). Because of the feature to accommodate different centre distance between electric motor (5), electric motor pulley (8) and compressor flywheel (9), one single beltguard (1) can be used for different compressor models. As the same beltguard (1) can be used for different compressor models this promotes mass production of the beltguard (1). Due to advantages such as that of mass production and a standardised design of the beltguard (1) for different compressor models, the cost of beltguard (1) is lowered. It is yet another advantage of the present invention that the Beltguard (1) can be split into 3 subassembly parts. This makes the assembly and dismantling of the Beltguard (1) easy.
[0038] It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the claims. , Claims:We claim:
1. A standardised beltguard (1) for a reciprocating air compressor, comprising:
plurality of subassemblies (11,12,13) made of metal mesh (15) and connected by fastening means;
plurality of metal plates (111, 121, 131, 135) on the subassemblies;
plurality of metal press angles on the subassemblies;
plurality of stiffeners on the subassemblies (112);
atleast one slot on the metal plate (111, 121, 131, 135) for assembly;
atleast one L-channel angle connecting the metal mesh, the metal plate (111, 121, 131, 135) with slots and stiffeners;
a baseframe (6) on which the beltguard is mounted;
atleast one baseframe channel (61) on the baseframe; and
atleast one slot on the baseframe channel (61),
wherein the slots provided on the metal plate (111, 121, 131, 135) along with the slots provided on the baseframe channel (61) below a mounting channel (8) enable the movement of subassembly 13 over the subassembly 11 and 12 and the movement of subassembly 13 over the baseframe channel (61) to change the length of the beltguard (1) according to centre distance of the flywheel (9) and pulley (8).
2. The beltguard as claimed in claim 1, wherein, the baseframe channel (61) has the slot over it so that subassembly 13 can translate in X-direction and slide freely on the baseframe (6) and also allows the subassembly 13 to be fixed with the baseframe (6) at desired location.
3. The beltguard as claimed in claim 1, wherein the Elliptical shape of the slot provided on the metal plates (111, 121, 131, 135) is responsible for the length adjustment of the beltguard.

4. The beltguard as claimed in claim 1 wherein, the arrangement of beltguard (1) is such that subassembly 12 is fixed over the baseframe 6, subassembly 11 is mounted over the subassembly 12 and it cannot rotate or translate in any direction, subassembly 13 is mounted separately over the baseframe 6.
5. The beltguard as claimed in claim 1 and 5, wherein the dismantling of beltguard (1) from its position through a canopy door (4) is such that first the subassembly 13 translates in Y-direction (+), translates in X-direction (-) and Z-direction (-). Then the subassembly 11 rotates around Z-axis, translates in X-direction and then translates in Z-direction and the subassembly 12 rotates around Z-axis translate in X-direction.