Claims:CLAIMS:
We claim,

(1) Rear transmission assembly of live axle for electric vehicle comprising: The assembly designed in such a way that we can easily change the type of rim by simply replacing rim attachment plate. The wheel hub is mounted on the main axle with the help of rim attachment plate. The rim attachment is connected to the main axle with the help of rectangular key. And rim attachment plate is connected to the wheel hub with the help of M6 hexagonal bolts. The main axle is mounted inside the rear knuckle plate with the help of two radial ball bearings. The main axle is connected to the rubber coupling connector with the help of square key and hexagonal nut. The rubber coupling connector is further connected to the rubber coupling shaft with the help of rubber coupling and M8 hexagonal bolts and nuts. The caliper plate is mounted on the rear knuckle plate with the help of M6 bolts and the outward movement of rim attachment plate from main shaft is restricted with the help of hexagonal nut. (2) Rear transmission assembly of live axle for electric vehicle as claimed in claim 1,the type of baring used for mounting main axle is Radial ball bearing and needle bearing ,we can also change the type of bearing ,it may be roller bearing, taper roller bearing deep grooved ball bearing or any other applicable to it. (3) Rear transmission assembly of live axle for electric vehicle as claimed in claim 1, we can change the shape of rim attachment plate according to requirement or type of rim to be used. (4) Rear transmission assembly of live axle for electric vehicle as claimed in claim 1, the main axle connected to the rim attachment plate with the help of Square key, Rectangular key or with the help of threaded join also. , Description:COMPLETE SPECIFICATIONS (See section 10 and rule 13)

TITLE OF THE INVENTION:

REAR TRANSMISSION ASSEMBLY OF LIVE AXLE FOR ELECTRIC VEHICLE.


APPLICANTS: 1) Mr.Vishal Balaso Patil. S/O- Balaso Patil, Residing at A/P-Yelapur, Tal-Shirala,Dist-Sangli,415405,Maharashtra,India, An Indian National. 2) Prof.Vidya Shivanand Byakod. D/O Shivanand Byakod, Residing at Bhuvi Bunglow,Sr.No-88/1/2/44, Veerbhadra Nagar Baner,Pune411045. Maharashtra, India, An Indian National. 3) Prof.Sunil Pandurang Chaphalkar.S/O Pandurang Chaphalkar, Residing at Mhada A-30,Gharkul Co-Operative housing society,Sant DnyaneshwarNagar,Morwadi,Pimpri,Pune 11018.Maharashtra,India, An Indian National. 4) Mr.Prathmesh Suresh Chavan. S/O Suresh Chavan. Residing at. Pimpri Chinchwad Polytechnic,Sector No26,Pradhikaran,Nigdi,Pune411044. Maharashtra,India, An Indian National.
5) Mr.Vedant Vinayak Palkratwar. S/O Vinayak Palkratwar. Residing at. Pimpri Chinchwad Polytechnic,Sector No26,Pradhikaran,Nigdi,Pune411044. Maharashtra,India, An Indian National. 6) Mr.Yash Mahadev Godase. S/O Mahadev Godase. Residing at. Pimpri Chinchwad Polytechnic,Sector No-26,Pradhikaran,Nigdi,Pune411044. Maharashtra,India, An Indian National. 7) Mr.Bhavesh Ramdas Birdawade. S/O Ramdas Birdawade. Residing at. Pimpri Chinchwad Polytechnic,Sector No26,Pradhikaran,Nigdi,Pune411044. Maharashtra,India, An Indian National. 8) Mr.Sidhalingreddy Nagareddy Sherikar. S/O Nagareddy Sherikar. Residing at. Pimpri Chinchwad Polytechnic,Sector No26,Pradhikaran,Nigdi,Pune411044. Maharashtra,India, An Indian National. 9) Mr.Atharva Bhau Badadhe. S/O Bhau Badadhe. Residing at. Pimpri Chinchwad Polytechnic,Sector No-26,Pradhikaran,Nigdi,Pune411044. Maharashtra,India, An Indian National. 10) Mr.Vipul Manoj Sonawane. S/O Manoj Sonawane. Residing at. Pimpri Chinchwad Polytechnic,Sector No-26,Pradhikaran,Nigdi,Pune411044. Maharashtra,India, An Indian National. 11) Mr.Adarsh Milind Bhavsar. S/O Milind Bhavsar. Residing at. Pimpri Chinchwad Polytechnic,Sector No-26,Pradhikaran,Nigdi,Pune411044. Maharashtra,India, An Indian National. 12) Mr.Chaitanya Sampat Kale. S/O Sampat Kale. Residing at. Pimpri Chinchwad Polytechnic,Sector No-26,Pradhikaran,Nigdi,Pune411044. Maharashtra,India, An Indian National. 13) Mr.Aditya Sanjay Daware. S/O Sanjay Daware. Residing at. Pimpri Chinchwad Polytechnic,Sector No-26,Pradhikaran,Nigdi,Pune411044. Maharashtra,India, An Indian National.
14) Mr. Rahul Balasaheb Shelke. S/O Balasaheb Shelke, Residing at post Bota,Tal-Sangamner,Dist-Ahmednagar,422602,Maharashtra, India, An Indian National.

15) Mr.Ayaz Mushtaq Nilikkar. S/O Mushtaq Nilikkar. Residing at. Pimpri Chinchwad Polytechnic,Sector No-26,Pradhikaran,Nigdi,Pune411044. Maharashtra,India, An Indian National.

INVENTORS:


1) Mr.Vishal Balaso Patil. S/O- Balaso Patil, Residing at A/P-Yelapur, Tal-Shirala,Dist-Sangli,415405,Maharashtra,India, An Indian National. 2) Prof.Vidya Shivanand Byakod. D/O Shivanand Byakod, Residing at Bhuvi Bunglow,Sr.No-88/1/2/44, Veerbhadra Nagar Baner,Pune411045. Maharashtra, India, An Indian National. 3) Prof.Sunil Pandurang Chaphalkar.S/O Pandurang Chaphalkar, Residing at Mhada A-30,Gharkul Co-Operative housing society,Sant DnyaneshwarNagar,Morwadi,Pimpri,Pune 11018.Maharashtra,India, An Indian National. 4) Mr. Rahul Balasaheb Shelke. S/O Balasaheb Shelke, Residing at post Bota,TalSangamner,Dist-Ahmednagar,422602,Maharashtra, India, An Indian National.



PREAMBLE TO THE DESCRIPTION:

[0001] the following specification particularly describes the nature of this invention and the manner in which it is to be performed.

FIELD OF THE INVENTION: [0002] The invention relates to the design and development of mechanical system. We designed a transmission system which can transmit the rotary
motion of the electric motor from transmission to the wheels. We designed simplest system by which with minimum loss we can transfer any rotary power from one point to another point. BACKGROUND OF THE INVENTION:
[0003] The term drive shaft first appeared at the mid 19th century. In Stover's 1861 patent reissue for a planing and matching machine, the term is used to refer to the belt-driven shaft by which the machine is driven. The term is not used in his original patent. Another early use of the term occurs in the 1861 patent reissue for the Watkins and Bryson horse-drawn mowing machine. Here, the term refers to the shaft transmitting power from the machine's wheels to the gear train that works the cutting mechanism.
[0004] In the 1890s, the term began to be used in a manner closer to the modern sense. In 1891, for example, Battles referred to the shaft between the transmission and driving trucks of his Climax locomotive as the drive shaft, and Stillman referred to the shaft linking the crankshaft to the rear axle of his shaftdriven bicycle as a drive shaft. In 1899, Bukey used the term to describe the shaft transmitting power from the wheel to the driven machinery by a universal joint in his Horse-Power. In the same year, Clark described his Marine Velocipede using the term to refer to the gear-driven shaft transmitting power through a universal joint to the propeller shaft. Crompton used the term to refer to the shaft between the transmission of his steam-powered Motor Vehicle of 1903 and the driven axle.
[0005] In recent days various transmission system are developed as well as some automatic transmission systems are also available in the market to transfer the power from one point to another point. Now a day’s various solid shafts are also available for transmitting the rotary power. We are using various components in our invention such as wheel hub, axle, rim attachment plate. [0006] US2199095A- Automatic transmission-The invention relates to automatic transmissions. The object of the invention is to provide a multi-speed transmission of very simple construction which will shift itself from a low to a direct or high gear ratio on a deceleration of the drive shaft to a speed synchronizing with the driven shaft and which may also be readily returned to
or held in a low gear ratio. A further object of the invention is to provide a multi-speed transmission with automatically variable speed changes and also optionally selective gear ratios for automatic speed changes from low to high or from second to high. A further object of the invention is to provide an automatically variable change speed transmission with optionally selective gear ratios wherein any of the gear ratios from high to sec Ond Ol' to low can be selected while the vehicle is in motion Or While in high gear. A further object of the invention is to pro wide a control which insures the transmission be ing in a low gear ratio whenever the operator is maneuvering his car from standstill to reverse or forward.- A further object of the invention is to provide a change speed gear mechanism in which one of the elements of the speed responsive clutch member is on a driven member carrying reduction gears that may be selectively clutched thereto. The invention further consists in the several features hereinafter set forth and more particularly defined by claims at the conclusion hereof. [0007] CN103244664B- A kind of automatic mechanical transmission and controlling method- The present invention relates to a kind of controlling method of automatic mechanical transmission, on the basis not changing existing manual transmission mechanical transmission mechanism, the tachopulse of clutch motor, step electric machine and gear shifting motor is gathered by speed probe, control the rotation speed of clutch motor, step electric machine and gear shifting motor compared with the rotating speed Pulse Calibration preset, begin to stop, and then realize the separation of clutch and combination and choosing, gearshift, to reach self-shifting object, provide cost savings; The mechanical motion eliminated in positioning control mode is worn and torn the positioning error caused; Adopt the shift strategy with neutral gear transition, make change gear group precise synchronization, thus make whole gearshift procedure more smooth-going.
[0008] CN104847843A- Automotive transmission shaft assembly with buffer structure- The invention relates to an automotive transmission shaft assembly with a buffer structure. The automotive transmission shaft assembly with the buffer structure comprises a tripod universal joint, a ball basket type universal joint, an input shaft, an output shaft and a transmission shaft, wherein the tripod universal joint and the ball basket type universal joint are connected to the two ends of a transmission shaft, the input shaft and the output shaft are respectively connected to the tripod universal joint and the ball basket type universal joint, and the tripod universal joint and the ball basket type universal joint are respectively provided with a first dust cover and a second dust cover and a buffer component is arranged in the middle of the transmission shaft; a buffer component comprises a middle buffer block, a first fixed block and a second fixed block, the first fixed block and the second fixed block are respectively and closely propped against the two sides of a middle buffer block, and a buffer cavity is formed in the middle buffer block. The automotive transmission shaft assembly provided by the invention is reasonable in structure and good in buffer effect, and the good transmission effect can be kept when an automobile operates in a more complicate condition, therefore the automobile keeps better stability in the operating process.
[0009] US4820241A- Tubular transmission shaft-A tubular transmission shaft for use as a drive shaft which transmits rotation from an engine to an axle of driving wheels of an automobile, including a tubular member having a smaller diameter at the middle portion thereof and larger diameter at both ends thereof and solid shaft members which are inserted and pressure tightened in both ends of the tubular member.
ADVANTAGES OF THE INVENTION [0010] Rear transmission assembly for live axle for electric vehicle. It is very simple and compact in design. Easy to change the wheel. The type of rim can be changed according to requirement by simply replacing type of rim attachment plate. Less noise while transmitting the power from one point to another point. The length of the system can be adjusted as per requirement by replacing the
main shaft. The overall weight of the system is less. The system requires less space for installation. Reliability of the system is more. OBJECTS OF THE INVENTION: [0011] To make transmission system for electric vehicle. [0012]To provide compact power transmission drive train [0013] To provide quick wheel changing facility to the vehicle. [0014] To make user-friendly mechanism which can be easily installed and operated. SUMMARY OF THE INVENTION: [0015] In today’s advanced automotive sector every day there are so many changes are made in every technology. When we are talking about the electric vehicles then around 98 % of electric vehicles are either run directly on electric motor or on automatic transmission system. But when we are talking about offroad electric vehicle then there is requirement of transmission system and differential to transfer the power with variable torque. We have decided to solve problem of transmission system hence we design such a drive line system which can be easily mount on any vehicle with small modifications in it. We made the transmission system consisting of rear knuckle, main axle, wheel hub,rim attachment plate, brake disc, circlip, rubber coupling connector, rubber coupling shaft, and different rectangular keys to transfer the motion. The hexagonal nut and bolts are used to make rigid system by combining all components. [0016] it’s a sad fact that in today’s advance technology it is difficult to install compact drive line for power transmission. So we have made compact rear transmission assembly of live axle for electric vehicles. [0017] our main focus is on them ? To provide compact power transmission drive train ? To provide quick wheel changing facility to the vehicle.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING [0018] The invention will now be described in relation to the accompanying drawings, in which: [0019] Figure 1and 2 illustrate various views of Rear transmission assembly of live axle for electric vehicle
[0020] Figure 1 illustrates the exploded view of invention. [0021] Figure 2 illustrates isometric ( 3D) view of the system. (40)REAR KNUCKLE (41) MAIN AXLE (42) WHEEL HUB (43) RIM ATTACHMENT PLATE (44) BRAKE DISC (45) RADIAL BALL BEARING (46) RUBBER COUPLING CONNECTOR (47) RUBBER COUPLING CONNECTOR KEY (48) RIM ATTACHMENT KEY (49) M6 ALLEN BOLTS (50) LOCK NUTS (51) RUBBER COUPLING (52) RUBBER COUPLING SHAFT (53) M8 HEXAGONAL BOLTS (54) CALIPER PLATE (55) BRAKE CALLIPER

DETAIL DESCRIPTION OF THE ACCOMPANYING DRAWINGS: [0022] According to this invention. We have made the rear transmission assembly of live axle for electric vehicle, in which Rear knuckle (40) made up of aluminum alloy is used to provide support to the main axle (41) with the help of two radial ball bearings (45) the rear knuckle (40) provides mounting facility for the disc brake caliper (55) and attachment facility for the wishbones. Main axle (41) made up of varying dimensions is used to provide support to the wheel hub (42) .the main axle (41) is rotating inside the radial ball bearings (45).the Wheel hub (42) made up of aluminum alloy on which brake disc (44) is attached with the help of M6 Allen Bolts (49). as well as rim attachment plate (43) is connected to it by M6 Allen Bolts (49) because of which the power from main axle (41) is transferred to the wheel hub (42).The rim attachment plate (43) is made up of alloy steel is attached to the wheel hub (42) and main axle (41) with
the M6 Allen bolts (49) and rim attachment key (48) respectively. The circular brake disc (44) is used for braking system to apply brakes. The brake disc (44) is connected to the wheel hub (42) with the help of M6 Allen bolts(49).The three point rubber coupling connector (46) is used to connect rubber coupling shaft (52) with the help of rubber coupling (51).the main axle (41) is connected to the rubber coupling connector (46) with the help of rubber coupling connector key (47) so that the motion from rubber coupling connector (46) is transferred to the main axle (41). The rim attachment key (48) makes rigid joint in between main axle (41) and the rim attachment plate (43). The two different size of locknuts M20 and M18 is used to connect the main rubber coupling connector (46) and rim attachment plate (43) to the main axle (41) respectively. The rubber coupling (51) is used to join the rubber coupling connector (46) and the rubber coupling shaft (52). It can accommodate the variation of power transmission angle made during suspension of the wheel. the rubber coupling shaft (52) is connected to the rubber coupling (51) with the help of M8 hexagonal nut and bolts (53) .the power is transferred from rubber coupling shaft (52) to the rubber coupling connector (46) M8 hexagonal bolts (53) are used to connect rubber coupling shaft (52) and rubber coupling connector (46) with the help of rubber coupling (51) .the brake caliper (55) mounted on caliper plate (54) is used for applying brakes. [0023] (40) REAR KNUCKLE: Rear knuckle made up of aluminum alloy is used to provide support to the main axle with the help of two radial ball bearings the rear knuckle provides mounting facility for the disc brake caliper and attachment facility for the wishbones. [0024] (41) MAIN AXLE: Main axle made up of varying dimensions is used to provide support to the wheel hub .the main axle is rotating inside the radial bearings. The power is transferred from main axle to the rim attachment plate. [0025] (42) WHEEL HUB: Wheel hub made up of aluminum alloy is used to minimize the weight of the system on which brake disc is attached with the help of M6 Allen Bolts. as well as rim attachment plate is connected to it by M6 Allen Bolts because of which the power from main axle is transferred to the wheel hub.

[0026] (43) RIM ATTACHMENT PLATE: The rim attachment plate is made up of alloy steel is attached to the wheel hub and main axle with the Allen bolts and rim attachment key respectively. The rim attachment plate is manufactured by using laser cutting process. [0027] (44) BRAKE DISC: The circular brake disc is used for braking system to apply brakes. The brake disc is connected to the wheel hub with the help of Allen bolts. The various diameter holes are provided on the disc for cooling purpose. [0028] (45) RADIAL BALL BEARING: The radial ball bearing is mounted inside the rear knuckle to provide support to the main axle. [0029] (46) RUBBER COUPLING CONNECTOR: The three point rubber coupling connector is used to connect rubber coupling shaft with the help of rubber coupling. [0030] (47) RUBBER COUPLING CONNECTOR KEY: The main shaft is connected to the rubber coupling connector with the help of rubber coupling key so that the motion from rubber coupling connector is transferred to the main shaft. [0031] (48) RIM ATTACHMENT KEY: The rim attachment key makes rigid joint in between main shaft and the rim attachment plate. [0032] (49) M6 ALLEN BOLTS: The M6 Allen bolts are used to connect brake disc to the wheel hub and rim attachment plate to the wheel hub [0033] (50) LOCK NUTS: the two different size of locknuts M20 and M18 is used to connect the main rubber coupling connector and rim attachment plate to the main shaft respectively. [0034] (51) RUBBER COUPLING: The rubber coupling is used to join the rubber coupling connector and the rubber coupling shaft. With the help of rubber coupling we can change the angle of power transmission upto 25 degree. Hence it can accommodate the variation made during suspension of the wheel.
[0035] (52) RUBBER COUPLING SHAFT: The rubber coupling shaft is connected to the rubber coupling with the help of hexagonal nut and bolts. The power is transferred from rubber coupling shaft to the rubber coupling connector. [0036] (53) M10 HEXAGONAL BOLTS: M10 hexagonal bolts are used to connect rubber coupling shaft and rubber coupling connector with the help of rubber coupling. [0037] (54) CALIPER PLATE: The caliper plate is mounted on the rear knuckle with the help of Allen bolts which provides mounting facility to the brake caliper. [0038] (55) BRAKE CALLIPER: The brake caliper mounted on caliper plate is used for applying brakes.