Wheel hub motor driving support

By designing shock absorption and buffering mechanisms in the hub motor drive bracket, the sliding mechanism of springs and rectangular blocks absorbs bumps and impacts, the problem of stator and rotor gap changes during road bumps in the hub motor is solved, extending the motor life and improving the stability.

CN222157177UActive Publication Date: 2024-12-13LANZHOU JIAOTONG UNIV +1
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Patent Information

Application Number
CN202420442948.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-07
Publication Date
2024-12-13
Estimated Expiration
2034-03-07

AI Technical Summary

Technical Problem

When the hub motor and the wheels jointly receive road bumps, if shock absorption is not performed, it will cause changes in the gap between the stator and rotor, reducing the life and working stability of the hub motor for a long time.

Method used

A hub motor drive bracket is designed, including a secondary fixing plate and a main fixing plate, equipped with shock absorption and buffering mechanisms respectively, which absorb impact force during bumps through the sliding mechanism of the spring and rectangular blocks to prevent motor damage.

Benefits of technology

It effectively reduces the impact force of the hub motor during bumps, extends the motor life and improves working stability.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN222157177U_ABST
    Figure CN222157177U_ABST
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Abstract

The utility model discloses a wheel hub motor driving support, and particularly relates to the technical field of wheel hub motors, the wheel hub motor driving support comprises a secondary fixing plate, connecting blocks are fixed on the two sides of the top of the secondary fixing plate, the two connecting blocks are rotatably connected with rotating rods through rotating shafts, a secondary sliding groove is formed in the top of the secondary fixing plate, and a sliding rod is arranged in the secondary sliding groove; and a damping mechanism for damping the sliding rod is arranged in the secondary sliding groove. A secondary sliding plate moves upwards, a secondary fixing plate and a sliding rod extrude a secondary spring, the sliding rod drives a secondary rectangular block to slide in a rectangular groove, so that the damping effect on the secondary fixing plate is achieved, meanwhile, a rotating rod rotates and drives a primary rectangular block to slide on a guide column, the primary rectangular block extrudes a primary spring, and the secondary fixing plate and the secondary spring are fixed. When the wheel hub motor is bumped, the main spring exerts opposite force on the main rectangular block, and then the main rectangular block is buffered, so that the secondary fixing plate is buffered, and the wheel hub motor is prevented from being damaged when bumped.
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Description

Technical Field

[0001] This utility model relates to the field of hub motors, specifically to a hub motor drive bracket. Background Art

[0002] A hub motor is a motor designed to integrate a vehicle's power system, transmission system, and braking system. A bracket is required when connecting the hub motor to the vehicle body.

[0003] However, when the hub motor and the wheel are subjected to road bumps during driving, if the hub motor is not damped, the gap between the stator and rotor in the hub motor may change. Over time, the lifespan and working stability of the hub motor will be reduced. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hub motor drive bracket, comprising:

[0005] The secondary fixed plate has connecting blocks fixed on both sides of its top. The two connecting blocks are rotatably connected to a rotating rod via a rotating shaft. The top of the secondary fixed plate has a secondary sliding groove, and a sliding rod is provided inside the secondary sliding groove. A shock-absorbing mechanism for damping the sliding rod is provided inside the secondary sliding groove.

[0006] A main fixing plate is located on top of a secondary fixing plate. Both sides of the bottom of the main fixing plate are provided with main rectangular grooves. A buffer mechanism is provided inside the main rectangular grooves to buffer the fixing plate. A main sliding groove is provided inside the main fixing plate. The top of the sliding rod is inserted into the main sliding groove. A screw is provided at the top of the main fixing plate. The bottom end of the screw passes through the top of the main fixing plate and extends into the main sliding groove.

[0007] Preferably, the shock absorption mechanism includes a secondary spring disposed inside the secondary sliding groove, the secondary spring being located between the bottom end of the sliding rod and the secondary sliding groove, and secondary rectangular grooves being provided on both inner walls of the secondary sliding groove, with a secondary rectangular block disposed within the secondary rectangular groove, the secondary rectangular block being able to slide within the secondary rectangular groove, and the secondary rectangular block being fixedly connected to the sliding rod.

[0008] Preferably, the buffer mechanism includes a main rectangular block disposed within a main rectangular groove, the main rectangular block being slidable within the main rectangular groove, a guide post disposed within the main rectangular groove, the guide post penetrating the main rectangular block, the main rectangular block being slidable on the guide post, and a main spring sleeved on the outside of the guide post on the side of the main rectangular block opposite to the sliding rod.

[0009] Preferably, the screw is threadedly connected to the main fixing plate, and the bottom end of the screw is rotatably connected to the sliding rod via a rotating shaft.

[0010] Preferably, the main rectangular block is rotatably connected to the rotating rod via a rotating shaft.

[0011] Preferably, fixing blocks are fixed on both sides of the top of the main fixing plate, and both fixing blocks can be fixed by bolts.

[0012] Preferably, the secondary fixing plate has a fixing hole, and a rotating ring is rotatably connected to one side of the secondary fixing plate via a bearing ring.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] As the secondary sliding plate moves upward, the secondary fixed plate and the sliding rod compress the secondary spring. The sliding rod drives the secondary rectangular block to slide within the rectangular groove, thereby achieving a shock-absorbing effect on the secondary fixed plate. At the same time, the rotating rod rotates and drives the main rectangular block to slide on the guide post. The main rectangular block compresses the main spring, and the main spring applies an opposite force to the main rectangular block, thus buffering the main rectangular block. This completes the buffering of the secondary fixed plate and prevents the hub motor from being damaged when subjected to bumps. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a cross-sectional view of the internal structure of the secondary fixing plate of this utility model.

[0020] Description of reference numerals:

[0021] 1. Secondary fixing plate; 2. Fixing hole; 3. Connecting block; 4. Rotating rod; 5. Fixing block; 6. Screw; 7. Main fixing plate; 8. Main rectangular block; 9. Sliding rod; 10. Main sliding groove; 11. Guide post; 12. Main rectangular groove; 13. Main spring; 14. Secondary rectangular groove; 15. Secondary rectangular block; 16. Secondary sliding groove; 17. Secondary spring; 18. Rotating ring. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Reference Figure 1-Figure 4 As shown, a hub motor drive bracket includes:

[0024] Secondary fixed plate 1, with connecting blocks 3 fixed on both sides of the top of secondary fixed plate 1. Both connecting blocks 3 are rotatably connected to rotating rods 4 via rotating shafts. Secondary sliding groove 16 is provided on the top of secondary fixed plate 1. Sliding rod 9 is provided inside secondary sliding groove 16. Shock-absorbing mechanism for damping sliding rod 9 is provided inside secondary sliding groove 16.

[0025] The main fixing plate 7 is located on top of the secondary fixing plate 1. The main fixing plate 7 has main rectangular grooves 12 on both sides of its bottom. The main rectangular grooves 12 are equipped with a buffer mechanism to buffer the fixing plate. The main fixing plate 7 has a main sliding groove 10 inside. The top of the sliding rod 9 is inserted into the main sliding groove 10. The top of the main fixing plate 7 is equipped with a screw 6. The bottom of the screw 6 passes through the top of the main fixing plate 7 and extends into the main sliding groove 10.

[0026] Furthermore, the shock absorption mechanism includes a secondary spring 17 located inside the secondary sliding groove 16. The secondary spring 17 is located between the bottom end of the sliding rod 9 and the secondary sliding groove 16. Secondary rectangular grooves 14 are provided on both sides of the inner wall of the secondary sliding groove 16. A secondary rectangular block 15 is provided in the secondary rectangular groove 14. The secondary rectangular block 15 can slide in the secondary rectangular groove 14. The secondary rectangular block 15 is fixedly connected to the sliding rod 9. When the secondary fixed plate 1 moves upward, the secondary fixed plate 1 and the sliding rod 9 will squeeze the secondary spring 17. At the same time, the sliding rod 9 will drive the secondary rectangular block 15 to slide in the rectangular groove, thereby achieving the shock absorption effect on the secondary fixed plate 1.

[0027] Furthermore, the buffer mechanism includes a main rectangular block 8 disposed within the main rectangular groove 12, the main rectangular block 8 being able to slide within the main rectangular groove 12, a guide post 11 disposed within the main rectangular groove 12, the guide post 11 penetrating the main rectangular block 8, the main rectangular block 8 being able to slide on the guide post 11, a main spring 13 being sleeved on the outside of the guide post 11 on the side of the main rectangular block 8 opposite to the sliding rod 9, when the secondary fixed plate 1 moves upward, the rotating rod 4 will rotate, and at the same time the rotating rod 4 will drive the main rectangular block 8 to slide on the guide post 11 and squeeze the main spring 13, the main spring 13 will give the main rectangular block 8 an opposite force, thereby buffering the rectangular block.

[0028] Furthermore, the screw 6 is threadedly connected to the main fixing plate 7, and the bottom end of the screw 6 is rotatably connected to the sliding rod 9 via a rotating shaft.

[0029] Furthermore, the main rectangular block 8 is rotatably connected to the rotating rod 4 via a rotating shaft.

[0030] Furthermore, fixing blocks 5 are fixed on both sides of the top of the main fixing plate 7. Both fixing blocks 5 can be fixed by bolts, which facilitates the fixing of the main fixing plate 7.

[0031] Furthermore, a fixing hole 2 is provided on the secondary fixing plate 1, and a rotating ring 18 is rotatably connected to one side of the secondary fixing plate 1 through a bearing ring. The fixing hole 2 is fixedly connected to the shaft of the stator in the hub motor, and the rotating ring 18 is fixedly connected to the hub.

[0032] Through the above technical solution:

[0033] In use, the fixing block 5 on the top of the main fixing plate 7 is connected to the vehicle body with bolts. Then, the shaft of the hub motor is inserted into the fixing hole 2 on the secondary fixing plate 1 and fixed. The hub is then fixed to the rotating ring 18. When the hub is bumped, the secondary sliding plate moves upward. The secondary fixing plate 1 and the sliding rod 9 will squeeze the secondary spring 17. The sliding rod 9 will drive the secondary rectangular block 15 to slide in the rectangular groove, thereby achieving the shock absorption effect of the secondary fixing plate 1. At the same time, the rotating rod 4 will rotate and drive the main rectangular block 8 to slide on the guide post 11. The main rectangular block 8 will squeeze the main spring 13. The main spring 13 will give the main rectangular block 8 an opposite force, thereby buffering the main rectangular block 8. This completes the buffering of the secondary fixing plate 1 and prevents the hub motor from being damaged when it is bumped.

[0034] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wheel hub motor drive bracket, characterized in that: include: A secondary fixed plate (1), connecting blocks (3) are fixed on both sides of the top of the secondary fixed plate (1), and the two connecting blocks (3) are rotatably connected to a rotating rod (4) via a rotating shaft. A secondary sliding groove (16) is provided on the top of the secondary fixed plate (1), a sliding rod (9) is provided inside the secondary sliding groove (16), and a shock absorbing mechanism for shock absorbing the sliding rod (9) is provided inside the secondary sliding groove (16); A main fixed plate (7), the main fixed plate (7) is located on the top of the secondary fixed plate (1), main rectangular grooves (12) are provided on both sides of the bottom of the main fixed plate (7), a buffer mechanism for buffering the fixed plate is provided inside the main rectangular groove (12), a main sliding groove (10) is provided inside the main fixed plate (7), the top of the sliding rod (9) is inserted into the main sliding groove (10), a screw rod (6) is provided at the top of the main fixed plate (7), and the bottom end of the screw rod (6) passes through the top of the main fixed plate (7) and extends into the main sliding groove (10).

2. The wheel hub motor drive bracket according to claim 1, characterized in that: The shock absorbing mechanism comprises a secondary spring (17) arranged inside the secondary sliding groove (16), the secondary spring (17) being located between the bottom end of the sliding rod (9) and the secondary sliding groove (16), the inner walls on both sides of the secondary sliding groove (16) being provided with secondary rectangular grooves (14), the secondary rectangular groove (14) being provided with a secondary rectangular block (15), the secondary rectangular block (15) being able to slide in the secondary rectangular groove (14), and the secondary rectangular block (15) being fixedly connected to the sliding rod (9).

3. The wheel hub motor drive bracket according to claim 1, characterized in that: The buffer mechanism comprises a main rectangular block (8) arranged in a main rectangular groove (12), the main rectangular block (8) being able to slide in the main rectangular groove (12), a guide column (11) being arranged in the main rectangular groove (12), the guide column (11) penetrating the main rectangular block (8), the main rectangular block (8) being able to slide on the guide column (11), and a main spring (13) being sleeved outside the guide column (11) and located on a side of the main rectangular block (8) opposite to the sliding rod (9).

4. The wheel hub motor drive bracket according to claim 2, characterized in that: The screw rod (6) is threadedly connected to the main fixing plate (7), and the bottom end of the screw rod (6) is rotationally connected to the sliding rod (9) via a rotating shaft.

5. The wheel hub motor drive bracket according to claim 3, characterized in that: The main rectangular block (8) is rotatably connected to the rotating rod (4) via a rotating shaft.

6. The wheel hub motor drive bracket according to claim 1, characterized in that: Fixed blocks (5) are fixed on both sides of the top of the main fixed plate (7), and the two fixed blocks (5) can be fixed by bolts.

7. The wheel hub motor drive bracket according to claim 1, characterized in that: The secondary fixing plate (1) is provided with a fixing hole (2), and one side of the secondary fixing plate (1) is rotatably connected to a rotating ring (18) via a bearing ring.