Damping device for motor of electric vehicle

Abstract

The utility model relates to the field of electric vehicle motor damping, and discloses an electric vehicle motor damping device which comprises a motor shell, a first connecting shaft is movably connected to the axis of the motor shell, a first fixing block is fixedly connected to the outer side of the first connecting shaft, and two sets of second fixing blocks are fixedly connected to the top of the first fixing block. A shock absorber connecting ring is movably connected between the two sets of second fixing blocks, a shock absorber is fixedly connected to the top of the shock absorber connecting ring, and connecting holes are formed in the two sets of second fixing blocks and the shock absorber connecting ring. By means of the design of a self-locking structure and a push rod, the shock absorber can be conveniently unlocked and fixed, and when the shock absorber needs to be replaced, only the push rod needs to be operated; when a new shock absorber is installed, the shock absorber can be firmly fixed to the electric vehicle by operating the push rod and rotating the handle, the replacement process of the shock absorber is greatly simplified, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicle motor shock absorption, and specifically relates to an electric vehicle motor shock absorption device. Background Technique

[0002] The electric vehicle motor shock absorption device is an important component used to reduce the vibration of the electric vehicle caused by uneven road surfaces or other factors during driving, so as to improve the riding comfort and protect the motor from damage.

[0003] According to CN201821028250.6 disclosed in the Chinese patent, in this application document, shock absorption is carried out through multiple shock absorption methods, and the shock absorption effect is more obvious. The first shock absorption spring and sponge inside the device body can reduce the vibration of the motor shaking left and right, and the second shock absorption spring prevents the device body from moving upward on bumpy roads. The shock absorption cylinder can avoid the high-speed rise and fall of the device body when it bumps by using air pressure. By setting a cover plate, the motor can be taken out when the motor needs to be repaired;

[0004] Although the multiple shock absorption methods in the application document can effectively handle the shock absorption problem, however, during use, due to the gradual weakening of the "elastic" performance of the shock absorber as the use time prolongs, it will cause that during the riding process, especially when encountering uneven roads or bumps, the electric vehicle cannot effectively relieve the vibration, which is then transmitted to the vehicle body and the rider. Therefore, the shock absorber needs to be replaced, but the existing replacement method is relatively cumbersome. For this reason, we propose an electric vehicle motor shock absorption device. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides an electric vehicle motor shock absorption device, which solves the above problems.

[0007] (II) Technical Solutions

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: An electric vehicle motor shock absorption device includes a motor housing, a first connecting shaft, a first fixing block, a shock absorber, a second fixing block, and a shock absorber connecting ring. The first connecting shaft is movably connected to the center of the motor housing. A first fixing block is fixedly connected to the outside of the first connecting shaft. Two groups of second fixing blocks are fixedly connected to the top of the first fixing block. A shock absorber connecting ring is movably connected between the two groups of second fixing blocks. A shock absorber is fixedly connected to the top of the shock absorber connecting ring. Connection holes are provided on both the two groups of second fixing blocks and the shock absorber connecting ring. It further includes:

[0009] A fixing structure arranged on the outside of the shock absorber connecting ring, which is used to fix the shock absorber;

[0010] A self-locking structure is provided outside two groups of second fixing blocks, which facilitates the replacement of the shock absorber.

[0011] Preferably, the fixing structure includes a conical block, a second connecting shaft, a threaded groove, a nut and a handle. The two groups of second fixing blocks and the inner wall of the connecting holes opened on the shock absorber connecting ring are movably connected with the second connecting shaft. One end of the second connecting shaft is fixedly connected with a handle through a limiting block. One end of the second connecting shaft is fixedly connected with a conical block, and the conical block is conical. A threaded groove is opened on the outer side of the second connecting shaft, and a nut is movably connected to the outer side of the threaded groove.

[0012] Preferably, a second placement groove is opened at the center of the second connecting shaft, and a push rod is movably connected to the inner wall of the second placement groove.

[0013] Preferably, a limiting block is fixedly connected to the outer side of the push rod, and a first spring is sleeved on the outer side of the limiting block and the corresponding position on the outer side of the push rod. The outer side of the first spring is movably connected to the inner wall of the second placement groove.

[0014] Preferably, the self-locking structure includes a self-locking block, a third placement groove and a fixing block. A third placement groove is opened at the corresponding position on the outer side of the other end of the limiting block and the outer side of the push rod. Two fixing blocks are fixedly connected to the inner wall of the third placement groove. The two fixing blocks are movably connected with the self-locking block through a rotating shaft, and the self-locking block is arc-shaped.

[0015] Preferably, a first placement groove is opened at the corresponding position on the outer side of the self-locking block and the second connecting shaft. One end of the self-locking block is fixedly connected with a second spring, and the other end of the second spring is fixedly connected to the inner wall of the third placement groove.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides an electric vehicle motor shock absorption device, which has the following beneficial effects:

[0018] 1. For this electric vehicle motor shock absorption device, when the self-locking structure is working, with the help of the self-locking structure and the push rod design, the shock absorber can be easily unlocked and fixed. When the shock absorber needs to be replaced, the user only needs to operate the push rod to make the self-locking block disengage from the locking of the second connecting shaft, and then pull out the second connecting shaft to remove the shock absorber. When installing a new shock absorber, the shock absorber can also be firmly fixed on the electric vehicle by operating the push rod and rotating the handle. This design greatly simplifies the replacement process of the shock absorber and improves the maintenance efficiency.

[0019] 2. For the shock absorber device of the electric vehicle motor, when the set fixing structure is operating, the shock absorber connecting ring can be fixed by rotating the nut on one side, avoiding the need to rotate the nuts on both sides for fixing in the traditional fixing method, greatly reducing the installation difficulty and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 It is a partially enlarged schematic diagram of the present utility model;

[0022] Figure 3 It is a partially sectional schematic diagram of the present utility model.

[0023] In the figure: 1. Motor housing; 2. First connecting shaft; 3. First fixing block; 4. Shock absorber; 5. Second fixing block; 6. Shock absorber connecting ring; 7. Tapered block; 8. Second connecting shaft; 9. First placement groove; 10. Thread groove; 11. Nut; 12. Push rod; 13. Handle; 14. Self-locking block; 15. Second placement groove; 16. First spring; 17. Limiting block; 18. Third placement groove; 19. Fixing block; 20. Second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-3 , a shock absorber device for an electric vehicle motor, including a motor housing 1, a first connecting shaft 2, a first fixing block 3, a shock absorber 4, a second fixing block 5, and a shock absorber connecting ring 6. The first connecting shaft 2 is movably connected to the center of the motor housing 1. The first fixing block 3 is fixedly connected to the outside of the first connecting shaft 2. Two groups of second fixing blocks 5 are fixedly connected to the top of the first fixing block 3. A shock absorber connecting ring 6 is movably connected between the two groups of second fixing blocks 5. The shock absorber 4 is fixedly connected to the top of the shock absorber connecting ring 6. Connecting holes are provided on both the two groups of second fixing blocks 5 and the shock absorber connecting ring 6. It further includes:

[0026] A fixing structure arranged on the outside of the shock absorber connecting ring 6, which is used to fix the shock absorber 4;

[0027] A self-locking structure arranged on the outside of the two groups of second fixing blocks 5, which is convenient for replacing the shock absorber 4.

[0028] Furthermore, the fixing structure includes a conical block 7, a second connecting shaft 8, a threaded groove 10, a nut 11 and a handle 13. The inner wall of the connecting holes formed in two groups of second fixing blocks 5 and the shock absorber connecting ring 6 is movably connected with the second connecting shaft 8. One end of the second connecting shaft 8 is fixedly connected with a handle 13 through a limiting block. One end of the second connecting shaft 8 is fixedly connected with a conical block 7, and the conical block 7 is conical. A threaded groove 10 is formed on the outer side of the second connecting shaft 8, and the threaded groove 10 is movably connected with a nut 11 on the outside. Place the shock absorber connecting ring 6 at the bottom of the new shock absorber 4 between the two groups of second fixing blocks 5, insert one end of the conical block 7 into the connecting holes in the two groups of second fixing blocks 5 and the shock absorber connecting ring 6. The conical block 7 is conical, and the diameter of one end is larger than that of the other end. For the convenience of inserting into the connecting hole, when the conical block 7 is inserted into the connecting hole, it drives the second connecting shaft 8 to be inserted into the connecting hole as well. The handle 13 is for conveniently holding the second connecting shaft 8. Rotate the nut 11 and rotate the nut 11 to a suitable position to complete the fixation of the shock absorber connecting ring 6.

[0029] Furthermore, a second placement groove 15 is formed at the center of the axis of the second connecting shaft 8, and a push rod 12 is movably connected to the inner wall of the second placement groove 15. When the conical block 7 and the second connecting shaft 8 are in the appropriate positions, push the push rod 12, and the push rod 12 moves within the second placement groove 15.

[0030] Furthermore, a limiting block 17 is fixedly connected to the outer side of the push rod 12. One end of the limiting block 17 and the outer side of the push rod 12 at the corresponding position are sleeved with a first spring 16, and the outer side of the first spring 16 is movably connected to the inner wall of the second placement groove 15. When the conical block 7 and the second connecting shaft 8 are in the appropriate positions, push the push rod 12, so that the first spring 16 is subjected to a compressive force and contracts.

[0031] Furthermore, the self-locking structure includes a self-locking block 14, a third placement groove 18 and a fixing block 19. A third placement groove 18 is formed at the other end of the limiting block 17 and the outer side of the push rod 12 at the corresponding position. Two fixing blocks 19 are fixedly connected to the inner wall of the third placement groove 18. The two fixing blocks 19 are both movably connected with a self-locking block 14 through a rotating shaft, and the self-locking block 14 is arc-shaped. Drive the push rod 12 to move. At the same time, one end of the self-locking block 14 moves along with the push rod 12. Due to the elastic force of the second spring 20 and the extrusion of the inner wall of the second placement groove 15, the other end of the self-locking block 14 warps up, and the other end of the self-locking block 14 abuts against the outer side of one of the second fixing blocks 5 to achieve self-locking.

[0032] Furthermore, a first placement groove 9 is formed at the position corresponding to the second connecting shaft 8 on the outer side of the self-locking block 14. One end of the self-locking block 14 is fixedly connected with a second spring 20, and the other end of the second spring 20 is fixedly connected to the inner wall of the third placement groove 18.

[0033] Working principle:

[0034] When the shock absorber 4 needs to be replaced, the shock absorber 4 is disassembled. The shock absorber connection ring 6 at the bottom of the new shock absorber 4 is placed between two groups of second fixing blocks 5. One end of the tapered block 7 is inserted into the connection holes on the two groups of second fixing blocks 5 and the shock absorber connection ring 6. The tapered block 7 is tapered, and the diameter of one end is larger than that of the other end. For the convenience of inserting into the connection hole, when the tapered block 7 is inserted into the connection hole, the second connecting shaft 8 is also driven to be inserted into the connection hole. When the tapered block 7 and the second connecting shaft 8 are in the appropriate positions, the push rod 12 is pushed, so that the first spring 16 is subjected to a compressive force and contracts, driving the push rod 12 to move. At the same time, one end of the self-locking block 14 moves along with the push rod 12. Due to the elastic force of the second spring 20 and the extrusion of the inner wall of the second placement groove 15, the other end of the self-locking block 14 tilts up, and the other end of the self-locking block 14 abuts against the outside of one of the second fixing blocks 5 to achieve self-locking. Then, the nut 11 is rotated to a suitable position to complete the fixation of the shock absorber connection ring 6.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle motor shock absorption device, comprising a motor housing (1), a first connecting shaft (2), a first fixing block (3), a shock absorber (4), a second fixing block (5) and a shock absorber connecting ring (6). The first connecting shaft (2) is movably connected to the center of the motor housing (1). A first fixing block (3) is fixedly connected to the outside of the first connecting shaft (2). Two groups of second fixing blocks (5) are fixedly connected to the top of the first fixing block (3). A shock absorber connecting ring (6) is movably connected between the two groups of second fixing blocks (5). A shock absorber (4) is fixedly connected to the top of the shock absorber connecting ring (6). Connecting holes are provided on both the two groups of second fixing blocks (5) and the shock absorber connecting ring (6). It is characterized in that: It further includes: A fixing structure disposed outside the shock absorber connection ring (6), which is used to fix the shock absorber (4); A self-locking structure disposed outside two groups of second fixing blocks (5), which facilitates the replacement of the shock absorber (4).

2. The shock absorption device for an electric vehicle motor according to claim 1, wherein: The fixing structure includes a tapered block (7), a second connecting shaft (8), a threaded groove (10), a nut (11) and a handle (13). The second connecting shaft (8) is movably connected to the inner wall of the connecting hole formed on two groups of the second fixing blocks (5) and the shock absorber connection ring (6). One end of the second connecting shaft (8) is fixedly connected to a handle (13) through a limiting block. One end of the second connecting shaft (8) is fixedly connected to a tapered block (7), and the tapered block (7) is conical. A threaded groove (10) is formed on the outer side of the second connecting shaft (8), and a nut (11) is movably connected to the outer side of the threaded groove (10).

3. The shock absorption device for an electric vehicle motor according to claim 2, characterized in that: A second placement groove (15) is formed at the axis center of the second connecting shaft (8), and a push rod (12) is movably connected to the inner wall of the second placement groove (15).

4. The electric vehicle motor shock absorption device according to claim 3, characterized in that: A limiting block (17) is fixedly connected to the outer side of the push rod (12). A first spring (16) is sleeved at one end of the limiting block (17) and a corresponding position on the outer side of the push rod (12). The outer side of the first spring (16) is movably connected to the inner wall of the second placement groove (15).

5. A shock absorption device for an electric vehicle motor according to claim 4, characterized in that: The self-locking structure includes a self-locking block (14), a third placement groove (18) and a fixing block (19). A third placement groove (18) is formed at a corresponding position on the outer side of the other end of the limiting block (17) and the outer side of the push rod (12). Two groups of fixing blocks (19) are fixedly connected to the inner wall of the third placement groove (18). Two groups of the fixing blocks (19) are movably connected to a self-locking block (14) through a rotating shaft, and the self-locking block (14) is arc-shaped.

6. The shock absorption device for an electric vehicle motor according to claim 5, characterized in that: A first placement groove (9) is formed at a corresponding position on the outer side of the self-locking block (14) and the second connecting shaft (8). One end of the self-locking block (14) is fixedly connected to a second spring (20), and the other end of the second spring (20) is fixedly connected to the inner wall of the third placement groove (18).

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