Anti-dust device for transmission shaft of electric automobile

Abstract

The utility model relates to the field of electric automobile transmission shafts, in particular to an electric automobile transmission shaft dustproof device which comprises a transmission shaft, a universal joint is fixedly connected to one side of the transmission shaft, a dustproof sleeve is arranged on the surface of the transmission shaft, and a clamping mechanism is arranged on the surface of the dustproof sleeve. A first rotating plate is rotated until a first groove is clamped into the surface of a first hook, then a second rotating plate is rotated downwards, at the moment, the second rotating plate drives a third rotating shaft and a third rotating plate to rotate, and at the moment, the third rotating plate is rotated until the third rotating plate is clamped into a second groove; at the moment, the upper clamping ring and the lower clamping ring are clamped on the surface of the dustproof sleeve in a matched mode, the dustproof sleeve is further tightly attached to the surface of the transmission shaft, the effect of clamping the dustproof sleeve is achieved, and the problems that in the long-term use process of a common transmission shaft dustproof device, a pipe clamp is prone to loosening and the service life is short are solved. And external pollutants such as dust are easy to enter the transmission shaft.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric automobile transmission shaft field, concretely is a kind of electric automobile transmission shaft dustproof device. BACKGROUND

[0002] Electric automobile transmission shaft as the important component of electric automobile power transmission system, its main function is to transmit the torque of electric motor to wheel, to drive vehicle forward. And electric automobile transmission shaft dustproof device is to prevent external dust, soil and other impurities into transmission shaft inside, especially universal joint part.

[0003] General transmission shaft dustproof device adopts dust cover, it needs dust cover pipe clamp and the surface of transmission shaft, the stability of this connecting mode is lower, in the long-term use process, pipe clamp is prone to looseness, and then dust and other external pollutants are easily entered into transmission shaft inside, while the lubricating oil in transmission shaft inside is also easily leaked, to increase the driving safety hidden danger. UTILITY MODEL CONTENTS

[0004] In order to make up for the deficiency of prior art, general transmission shaft dustproof device in the long-term use process, pipe clamp is prone to looseness, and then dust and other external pollutants are easily entered into transmission shaft inside, while the lubricating oil in transmission shaft inside is also easily leaked, to increase the driving safety hidden danger problem, the utility model provides a kind of electric automobile transmission shaft dustproof device.

[0005] The utility model solves technical scheme that it adopts technical scheme to its technical problem: a kind of electric automobile transmission shaft dustproof device, including transmission shaft, the side fixedly connected with universal joint of transmission shaft, the surface of transmission shaft is provided with dust cover, the surface of dust cover is provided with clamping mechanism;

[0006] The clamping mechanism includes upper pipe clamp, the side fixedly connected with fourth rotating shaft in the bottom of upper pipe clamp, the surface of fourth rotating shaft is movably connected with lower pipe clamp, the surface of lower pipe clamp is fixedly connected with bottom plate, the surface of bottom plate is fixedly connected with spring, one end of spring is fixedly connected with second rotating plate, the inside of second rotating plate and bottom plate is movably connected with second rotating shaft, and the number of second rotating shaft is two, the inside of second rotating plate is movably connected with first rotating shaft, the surface of first rotating shaft is movably connected with first rotating plate.

[0007] As preferred, the surface of first rotating plate is provided with first recess, the inside of first recess is movably connected with first hook, and one end of first hook is arc-shaped, one side of first hook is fixedly connected with the surface of upper pipe clamp.

[0008] As preferred, the surface of the bottom plate is fixedly connected with a fixed plate, the fixed plate is arranged in an inclined structure, and the surface of the fixed plate is provided with a second groove.

[0009] As preferred, the inside of the second rotating plate is fixedly connected with a third rotating shaft, the surface of the third rotating shaft is movably connected with a third rotating plate, the bottom of the third rotating plate is in a hook shape, and the surface of the third rotating plate is movably connected with the inside of the second groove.

[0010] As preferred, the two sides of the second rotating shaft are fixedly connected with baffles, and the number of the baffles is four, and one side of the baffle is movably connected with the surface of the second rotating plate and the bottom plate.

[0011] As preferred, the inside of the upper pipe clamp is fixedly connected with an upper clamping ring, the inside of the lower pipe clamp is fixedly connected with a lower clamping ring, and the inside of the upper clamping ring and the lower clamping ring is in close contact with the surface of the dustproof sleeve.

[0012] The utility model discloses the beneficial effect lies in:

[0013] The utility model discloses the pipe clamp and upper pipe clamp are clamped into the surface of dustproof sleeve, then rotate second rotating plate upwards, when spring occurs elastic deformation, second rotating plate drives first rotating shaft and first rotating plate to rotate, when rotating first rotating plate until first groove is clamped into the surface of first hook, then rotate second rotating plate downwards, when second rotating plate drives third rotating shaft and third rotating plate to rotate, when rotating third rotating plate until third rotating plate is clamped into the inside of second groove, when upper clamping ring and lower clamping ring cooperate and are clamped on the surface of dustproof sleeve, further make dustproof sleeve closely adhere to the surface of transmission shaft, reach the effect of clamping dustproof sleeve, solve the problem that the pipe clamp is easy to appear loose in the long -term use of general transmission shaft dustproof device, and then make dust and other external pollutants easy to enter transmission shaft inside, and the lubricating oil in transmission shaft inside is also easy to leak, thereby increase the traffic safety hidden danger. ACCURATE DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the structural schematic diagram of transmission shaft in the utility model;

[0017] Figure 3 Figure is a connection diagram of the upper clamping ring and the lower clamping ring structure in the utility model;

[0018] Figure 4 Figure is a disassembly diagram of the rotating plate and the bottom plate structure in the utility model;

[0019] Figure 5 Figure is a disassembly diagram of the upper pipe clamp and the lower pipe clamp structure in the utility model.

[0020] In the figure: 1, transmission shaft; 2, dust cover; 3, clamping mechanism; 301, first hook; 302, first rotating plate; 303, first recess; 304, first rotating shaft; 305, second rotating plate; 306, second rotating shaft; 307, baffle; 308, third rotating shaft; 309, third rotating plate; 310, fixed plate; 311, second recess; 312, bottom plate; 313, spring; 314, upper pipe clamp; 315, fourth rotating shaft; 316, upper clamping ring; 317, lower pipe clamp; 318, lower clamping ring; 4, universal joint. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] The following will be combined with the drawings in the embodiments of the utility model, Figures 1-5 The application will be further described in detail,

[0023] The embodiments of the application disclose a dustproof device for a transmission shaft of an electric vehicle. Figure 1 , Figure 2 and Figure 4 A dustproof device for a transmission shaft of an electric vehicle, comprising a transmission shaft 1, a universal joint 4 is fixedly connected to one side of the transmission shaft 1, a dust cover 2 is arranged on the surface of the transmission shaft 1, and a clamping mechanism 3 is arranged on the surface of the dust cover 2.

[0024] The clamping mechanism 3 comprises an upper pipe clamp 314, one side of the bottom of the upper pipe clamp 314 is fixedly connected with a fourth rotating shaft 315, the surface of the fourth rotating shaft 315 is movably connected with a lower pipe clamp 317, the surface of the lower pipe clamp 317 is fixedly connected with a bottom plate 312, the surface of the bottom plate 312 is fixedly connected with a spring 313, one end of the spring 313 is fixedly connected with a second rotating plate 305, the interiors of the second rotating plate 305 and the bottom plate 312 are movably connected with a second rotating shaft 306, the number of the second rotating shaft 306 is two, the interior of the second rotating plate 305 is movably connected with a first rotating shaft 304, the surface of the first rotating shaft 304 is movably connected with a first rotating plate 302.

[0025] With reference to Figure 3 and Figure 4 , the surface of the first rotating plate 302 is provided with a first recess 303, the interior of the first recess 303 is movably connected with a first hook 301, one end of the first hook 301 is arc-shaped, and the surface of one side of the first hook 301 is fixedly connected with the upper pipe clamp 314. Through the arrangement of the first hook 301, one end of the first hook 301 is arc-shaped, and then the first hook 301 can be smoothly clamped into the surface of the first rotating plate 302 when the first rotating plate 302 rotates, so that the position of the first rotating plate 302 can be positioned.

[0026] With reference to Figure 3 and Figure 4 , the surface of the bottom plate 312 is fixedly connected with a fixed plate 310, the top of the fixed plate 310 is semi-cylindrical, and the surface of the fixed plate 310 is provided with a second recess 311. Through the arrangement of the second recess 311, the second recess 311 provides a clamping groove, and then the third rotating plate 309 can be smoothly clamped into the groove when the third rotating plate 309 rotates, so that the position of the third rotating plate 309 can be positioned.

[0027] With reference to Figure 4 , the interior of the second rotating plate 305 is fixedly connected with a third rotating shaft 308, the surface of the third rotating shaft 308 is movably connected with a third rotating plate 309, and the bottom of the third rotating plate 309 is hook-shaped. The surface of the third rotating plate 309 is movably connected with the interior of the second recess 311. Through the arrangement of the third rotating shaft 308, when the third rotating plate 309 is rotated, the third rotating shaft 308 provides a fulcrum to make the third rotating plate 309 rotate around the third rotating shaft 308, and further makes the third rotating plate 309 smoothly clamped into the second recess 311.

[0028] With reference to Figure 4The two sides of the second rotating shaft 306 are fixedly connected with the baffles 307, the number of the baffles 307 is four, one side of the baffle 307 is movably connected to the surface of the second rotating plate 305 and the bottom plate 312, the position of the second rotating shaft 306 is blocked by the setting of the baffle 307, so that the second rotating shaft 306 is prevented from moving out of the second rotating plate 305 and the bottom plate 312, and the connection of the second rotating plate 305 and the bottom plate 312 is further realized;

[0029] With reference to Figure 1 , Figure 4 and Figure 5 The inside of the upper pipe clamp 314 is fixedly connected with the upper clasp 316, the inside of the lower pipe clamp 317 is fixedly connected with the lower clasp 318, the inside of the upper clasp 316 and the lower clasp 318 is in close contact with the surface of the dustproof sleeve 2, the setting of the upper clasp 316 and the lower clasp 318 can provide sufficient contact pressure, so that the surface of the dustproof sleeve 2 can be closely attached to the upper clasp 316 and the lower clasp 318, and the dustproof sleeve 2 is further closely attached to the surface of the transmission shaft 1, so as to achieve the effect of sealing and dust prevention.

[0030] Working principle: when the driving shaft 1 is provided with the dustproof device, first, the dustproof cover 2 is sleeved on the surface of the driving shaft 1 and the universal joint 4 by using the expander, then the lower pipe clamp 317 is rotated to the surface of the dustproof cover 2, then the upper pipe clamp 314 is rotated, thereby driving the fourth rotating shaft 315 to rotate around the lower pipe clamp 317, when the upper pipe clamp 314 is rotated to the surface of the dustproof cover 2, at this time, the second rotating plate 305 is rotated upwards, so that the second rotating plate 305 rotates around the second rotating shaft 306, and the baffle 307 is blocked on one side of the second rotating plate 305 and the bottom plate 312, further preventing the second rotating shaft 306 from moving out of the inside of the second rotating plate 305 and the bottom plate 312, at the same time, the spring 313 is stretched to be deformed, at this time, the second rotating plate 305 drives the first rotating shaft 304 and the first rotating plate 302 to rotate, then the first rotating plate 302 is rotated, thereby driving the first recess 303 to be clamped into the surface of the first hook 301, then the second rotating plate 305 is rotated downwards, thereby driving the third rotating shaft 308 to rotate, then the third rotating plate 309 is rotated, thereby clamping into the inside of the second recess 311, at the same time, the upper clamping ring 316 and the lower clamping ring 318 are clamped on the surface of the dustproof cover 2, further making the dustproof cover 2 closely adhere to the surface of the driving shaft 1, so as to achieve the dustproof effect, when the dustproof cover 2 needs to be disassembled, the second rotating plate 305 is rotated downwards, thereby driving the third rotating shaft 308 to rotate, at this time, the spring 313 is compressed to be deformed, then the third rotating plate 309 is rotated upwards, so that the third rotating plate 309 moves out of the inside of the second recess 311, similarly, the second rotating plate 305 is continuously rotated upwards, thereby rotating the first rotating plate 302, so that the first recess 303 moves out of the first hook 301, then the clamping mechanism 3 is removed, thereby disassembling the dustproof cover 2.

[0031] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A dust-proof device for a drive shaft of an electric vehicle, comprising a drive shaft (1), characterized in that: The side of the transmission shaft (1) is fixedly connected with a universal joint (4), and the surface of the transmission shaft (1) is provided with a dust cover (2), and the surface of the dust cover (2) is provided with a clamping mechanism (3). The clamping mechanism (3) comprises an upper pipe clamp (314), one side of the bottom of the upper pipe clamp (314) is fixedly connected with a fourth rotating shaft (315), the surface of the fourth rotating shaft (315) is movably connected with a lower pipe clamp (317), the surface of the lower pipe clamp (317) is fixedly connected with a bottom plate (312), the surface of the bottom plate (312) is fixedly connected with a spring (313), one end of the spring (313) is fixedly connected with a second rotating plate (305), the interiors of the second rotating plate (305) and the bottom plate (312) are movably connected with a second rotating shaft (306), the number of the second rotating shaft (306) is two, the interior of the second rotating plate (305) is movably connected with a first rotating shaft (304), and the surface of the first rotating shaft (304) is movably connected with a first rotating plate (302).

2. The dustproof device for the transmission shaft of an electric vehicle according to claim 1, characterized in that: The surface of the first rotating plate (302) is provided with a first groove (303), the interior of the first groove (303) is movably connected with a first hook (301), and one end of the first hook (301) is arc-shaped, and the surface of the first hook (301) is fixedly connected with the upper pipe clamp (314).

3. The dustproof device for the transmission shaft of an electric vehicle according to claim 1, characterized in that: The surface of the bottom plate (312) is fixedly connected with a fixed plate (310), the fixed plate (310) is arranged in an inclined structure, and the surface of the fixed plate (310) is provided with a second groove (311).

4. The dustproof device for the transmission shaft of an electric vehicle according to claim 1, characterized in that: The interior of the second rotating plate (305) is fixedly connected with a third rotating shaft (308), the surface of the third rotating shaft (308) is movably connected with a third rotating plate (309), and the bottom of the third rotating plate (309) is hook-shaped, and the surface of the third rotating plate (309) is movably connected with the interior of the second groove (311).

5. The dustproof device for the transmission shaft of an electric vehicle according to claim 1, characterized in that: Both sides of the second rotating shaft (306) are fixedly connected with baffles (307), and the number of the baffles (307) is four, and one side of the baffle (307) is movably connected with the surface of the second rotating plate (305) and the bottom plate (312) respectively.

6. The dustproof device for the transmission shaft of an electric vehicle according to claim 1, characterized in that: The interior of the upper pipe clamp (314) is fixedly connected with an upper clamping ring (316), the interior of the lower pipe clamp (317) is fixedly connected with a lower clamping ring (318), and the interiors of the upper clamping ring (316) and the lower clamping ring (318) are in close contact with the surface of the dust cover (2).

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