Unmanned vehicle damping device
By employing a hinged structure and rubber connectors between the front and rear wheel sets and the central mounting frame on the unmanned vehicle, combined with a triangular stabilization design, the impact force of the road surface is uniformly transmitted and buffered. This solves the problems of connection stability and buffering effect of the unmanned vehicle's shock absorption device, extends its service life, and reduces maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGYUAN ZHIXING (NINGBO) TECH CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-06-26
AI Technical Summary
Existing shock absorption devices for unmanned vehicles suffer from poor connection stability, uneven force transmission, limited buffering effect, and rigid connections that are prone to damage, resulting in high maintenance costs.
It adopts a hinged structure between the front and rear wheel sets and the central mounting frame, combined with rubber connectors and a triangular stabilizing structure. It uses front and rear elastic shock absorbers to evenly transmit and buffer the impact force of the road surface, and improves the connection stability and reduces damage to rigid connections through rubber connectors.
It improves the connectivity stability and buffering effect of autonomous vehicles, extends their service life, and reduces maintenance frequency and costs.
Smart Images
Figure CN224408875U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned vehicle technology, specifically to an unmanned vehicle shock absorption device. Background Technology
[0002] With the rapid development of autonomous vehicle technology, its application scenarios are gradually expanding to various complex road environments such as urban roads, industrial parks, and mining areas. During operation, autonomous vehicles inevitably encounter road obstacles such as bumps and potholes. Without an effective shock absorption structure, the impact force generated by road bumps will be directly transmitted to the vehicle body and internal components, which not only affects the driving stability of the autonomous vehicle, but may also lead to rigid damage to body parts, failure of internal components, and shorten the service life of the autonomous vehicle.
[0003] Existing shock absorption devices for autonomous vehicles mostly use a single elastic component to directly connect the wheel and the vehicle body, which has the following shortcomings: First, the connection stability is poor, and loosening easily occurs between the wheel and the connecting rod; second, the force transmission is uneven, and the impact force cannot be effectively dispersed to the shock absorber, resulting in limited cushioning effect; third, the high proportion of rigid connections makes the components prone to breakage under external impact, leading to high maintenance costs. Therefore, there is an urgent need for an autonomous vehicle shock absorption device with stable connection, good cushioning effect, and long service life to solve the above problems. Utility Model Content
[0004] In view of the above, the purpose of this utility model is to provide a shock absorption device for unmanned vehicles in response to the problems mentioned in the background art.
[0005] This solution provides an unmanned vehicle shock absorption device, comprising a front wheel assembly, a central mounting frame, a rear wheel assembly, a front elastic shock absorber, and a rear elastic shock absorber. The front wheel assembly, central mounting frame, and rear wheel assembly are arranged sequentially. The front wheel assembly includes a front wheel axle and a front wheel connecting rod. One end of the front wheel connecting rod is fixedly mounted on the front wheel axle, and the other end faces the central mounting frame. The end of the front wheel connecting rod near the central mounting frame is hinged to the central mounting frame. One end of the front elastic shock absorber is hinged to the front wheel axle, and the other end is hinged to the central mounting frame. The rear wheel assembly includes a rear wheel axle and a rear wheel connecting rod. One end of the rear wheel connecting rod is fixedly mounted on the rear wheel axle, and the other end faces the central mounting frame. The end of the rear wheel connecting rod near the central mounting frame is hinged to the central mounting frame. One end of the rear elastic shock absorber is hinged to the rear wheel axle, and the other end is hinged to the central mounting frame.
[0006] Preferably, a front connecting member is fixedly installed on the front wheel axle, the front connecting member is provided with two front connecting grooves, and a rubber connecting member is embedded in each of the two front connecting grooves. One end of the front wheel connecting rod is fixedly connected to the two rubber connecting members respectively.
[0007] Preferably, one end of the front elastic shock absorber is hinged to the front connector, and the other end is hinged to the center mounting frame, with the axis of the front elastic shock absorber and the axis of the front wheel connecting rod on a plane.
[0008] Preferably, two front connectors are provided, which are arranged parallel to each other on the front wheel axle. Two front wheel connecting rods are provided, with their two ends connected to the front connectors and the center mounting frame, respectively. Two front elastic shock absorbers are provided, with their two ends connected to the front connectors and the center mounting frame, respectively.
[0009] Preferably, the angle between the front wheel connecting rod and the front elastic shock absorber is 45°~65°.
[0010] Preferably, the angle between the front wheel connecting rod and the horizontal plane is 10° to 20°.
[0011] Preferably, a rear connecting member is fixedly installed on the rear wheel axle, the rear connecting member is provided with two rear connecting grooves, and a rubber connecting member is embedded in each of the two rear connecting grooves. One end of the rear wheel connecting rod is fixedly connected to the two rubber connecting members respectively.
[0012] Preferably, one end of the rear elastic shock absorber is hinged to the rear connector, and the other end of the rear elastic shock absorber is hinged to the center mounting frame. The axis of the rear elastic shock absorber and the axis of the front wheel connecting rod are on the same plane.
[0013] Preferably, two rear connecting members are provided, which are arranged parallel to each other on the rear wheel axle. Two rear wheel connecting rods are provided, with their two ends connected to the rear connecting members and the middle mounting frame, respectively. Two rear elastic shock absorbers are provided, with their two ends connected to the rear connecting members and the middle mounting frame, respectively.
[0014] Preferably, the front and rear elastic shock absorbers have the same structure. The front elastic shock absorber includes an upper shock absorber, a lower shock absorber, and a shock absorber spring. The upper and lower shock absorbers are slidably fitted together, and their axes are on the same straight line. The shock absorber spring is sleeved on the upper and lower shock absorbers. The end of the upper shock absorber is hinged to the middle mounting frame, and the lower shock absorber is hinged to the front or rear wheel assembly.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. High connection stability: The rubber connectors and multiple components are symmetrically arranged, which greatly improves the connection stability between the wheel connecting rod and the wheel axle and avoids loosening during driving;
[0017] 2. Excellent buffering effect: The triangular stabilizing structure, optimized power transmission arm design, and shock-absorbing springs work together to evenly transmit and buffer road impact forces, improving the driving stability of the unmanned vehicle;
[0018] 3. Long service life: Rubber connectors buffer power transmission, avoid damage to rigid connections, reduce the frequency of component maintenance and replacement, and extend the overall service life of the unmanned vehicle. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the shock absorption device for unmanned vehicles in this application;
[0020] Figure 2 This is a side view of the unmanned vehicle shock absorption device in this application;
[0021] Figure 3 This is a structural schematic diagram of the front wheel assembly in the shock absorption device for the unmanned vehicle in this application.
[0022] Figure 4 This is a structural schematic diagram of the rear wheel assembly in the shock absorption device for the unmanned vehicle in this application.
[0023] Figure 5 for Figure 3 A magnified structural diagram of point A in the middle.
[0024] Reference numerals: 1. Front wheel assembly; 11. Front wheel axle; 12. Front wheel connecting rod; 13. Front connecting piece; 131. Front connecting groove; 2. Middle mounting frame; 3. Rear wheel assembly; 3. Rear wheel axle; 31. Rear wheel connecting rod; 32. Rear connecting piece; 33. Rear connecting groove; 331. Front elastic shock absorber; 4. Upper shock absorber; 41. Lower shock absorber; 42. Shock absorber spring; 43. Rear elastic shock absorber; 5. Rubber connector; 6. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figures 1 to 5 The illustrated unmanned vehicle shock absorption device includes a front wheel assembly 1, a central mounting frame 2, a rear wheel assembly 3, a front elastic shock absorber 4, and a rear elastic shock absorber 5, wherein the front wheel assembly 1, the central mounting frame 2, and the rear wheel assembly 3 are arranged sequentially.
[0027] The front wheel assembly 1 includes a front wheel, a front wheel axle 11, and a front wheel connecting rod 12. One end of the front wheel connecting rod 12 is fixedly mounted on the front wheel axle 11, and the other end is positioned towards the central mounting frame 2. The end of the front wheel connecting rod 12 near the central mounting frame 2 is hinged to the central mounting frame 2. One end of the front elastic shock absorber 4 is hinged to the front wheel axle 11, and the other end of the front elastic shock absorber 4 is hinged to the central mounting frame 2. The front wheel is mounted on both sides of the front wheel axle 11. The front wheel connecting rod 12, the front elastic shock absorber 4, and the central mounting frame 2 form a stable triangle. During the operation of the unmanned vehicle, when the front wheel passes over bumps or potholes, the front wheel axle 11 will cause the front wheel connecting rod 12 to swing, and the front elastic shock absorber 4 will buffer the force.
[0028] The rear wheel assembly 3 includes a rear wheel axle, a rear wheel axle 31, and a rear wheel connecting rod 32. One end of the rear wheel connecting rod 32 is fixedly mounted on the rear wheel axle 31, and the other end is positioned towards the central mounting frame 2. The end of the rear wheel connecting rod 32 near the central mounting frame 2 is hinged to the central mounting frame 2. One end of the rear elastic shock absorber 5 is hinged to the rear wheel axle 31, and the other end of the rear elastic shock absorber 5 is hinged to the central mounting frame 2. The rear wheels are mounted on both sides of the rear wheel axle 31. The rear wheel connecting rod 32, the rear elastic shock absorber 5, and the central mounting frame 2 form a stable triangle. During the operation of the unmanned vehicle, when the rear wheels pass over bumps or potholes, the rear wheel axle 31 will cause the rear wheel connecting rod 32 to swing, and the rear elastic shock absorber 5 will buffer the force.
[0029] In some embodiments, a front connector 13 is fixedly installed on the front wheel axle 11. The front connector 13 has two front connecting grooves 131, and a rubber connector 6 is embedded in each of the two front connecting grooves 131. One end of the front wheel connecting rod 12 is fixedly connected to the two rubber connectors 6. A rear connector 33 is fixedly installed on the rear wheel axle 31. The rear connector 33 has two rear connecting grooves 331, and a rubber connector 6 is embedded in each of the two rear connecting grooves 331. One end of the rear wheel connecting rod 32 is fixedly connected to the two rubber connectors 6. The rubber connectors 6 can improve the connection stability between the front wheel connecting rod 12 and the front wheel axle 11, and the connection stability between the rear wheel connecting rod 32 and the rear wheel axle 31. At the same time, the rubber connectors 6 can buffer the power transmission between the front connector 13, the front wheel connecting rod 12, and the rear wheel connecting rod 32, preventing damage caused by rigid connection after being subjected to external force collision, and improving the service life of the unmanned vehicle.
[0030] In some embodiments, one end of the front elastic damper 4 is hinged to the front connector 13, and the other end is hinged to the middle mounting frame 2. The axis of the front elastic damper 4 and the axis of the front wheel connecting rod 12 are on a plane. One end of the rear elastic damper 5 is hinged to the rear connector 33, and the other end of the rear elastic damper 5 is hinged to the middle mounting frame 2. The axis of the rear elastic damper 5 and the axis of the front wheel connecting rod 12 are on a plane. This allows the front elastic damper 4, the front wheel connecting rod 12, and the front wheel connecting rod 12 to form a complete power transmission arm, thereby ensuring that the unmanned vehicle can uniformly transmit the external force received during operation to the front elastic damper 4 and / or the rear elastic damper 5.
[0031] In some embodiments, two front connectors 13 are provided, and the two front connectors 13 are arranged parallel to each other on the front wheel axle 11. Two front wheel connecting rods 12 are provided, and the two ends of the two front wheel connecting rods 12 are respectively connected to the front connectors 13 and the middle mounting frame 2. Two front elastic shock absorbers 4 are provided, and the two ends of the two front elastic shock absorbers 4 are respectively connected to the front connectors 13 and the middle mounting frame 2. Two rear connectors 33 are provided, and the two rear connectors 33 are arranged parallel to each other on the rear wheel axle 31. Two rear wheel connecting rods 32 are provided, and the two ends of the two rear wheel connecting rods 32 are respectively connected to the rear connectors 33 and the middle mounting frame 2. Two rear elastic shock absorbers 5 are provided, and the two ends of the two rear elastic shock absorbers 5 are respectively connected to the rear connectors 33 and the middle mounting frame 2. This can balance the force transmission between the front wheel assembly 1, the rear wheel assembly 3, and the middle mounting frame 2 of the unmanned vehicle, and further improve its structural stability.
[0032] In some embodiments, the angle between the front wheel connecting rod 12 and the front elastic damper 4 is 45°~65°, preferably 53°, and the angle between the front wheel connecting rod 12 and the horizontal plane is 10°~20°, preferably 14°. The appropriate angle can improve the stability of the fit between the front wheel connecting rod 12 and the front elastic damper 4, and allow the force generated on the front wheel connecting rod 12 to be stably transmitted to the front elastic damper 4 for buffering.
[0033] In some embodiments, the front elastic shock absorber 4 and the rear elastic shock absorber 5 have the same structure. The front elastic shock absorber 4 includes an upper shock absorber 41, a lower shock absorber 42, and a shock absorber spring 43. The upper shock absorber 41 and the lower shock absorber 42 are slidably engaged, and the axes of the upper shock absorber 41 and the lower shock absorber 42 are on the same straight line. The shock absorber spring 43 is sleeved on the upper shock absorber 41 and the lower shock absorber 42. The end of the upper shock absorber 41 is hinged to the middle mounting frame 2, and the lower shock absorber 42 is hinged to the front wheel assembly 1 or the rear wheel assembly 3. When the front elastic shock absorber 4 or the rear elastic shock absorber 5 is compressed by an external force, the upper shock absorber 41 will move toward the lower shock absorber 42. The shock absorber spring 43 provides a certain buffering force to buffer the external pressure. When the external pressure is released, the shock absorber spring 43 resets and pushes the upper shock absorber 41 to move away from the lower shock absorber 42, thereby generating a sufficient buffering distance to facilitate subsequent buffering operations.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An unmanned vehicle shock absorbing device, characterized by, The system includes a front wheel assembly (1), a center mounting frame (2), a rear wheel assembly (3), a front elastic shock absorber (4), and a rear elastic shock absorber (5). The front wheel assembly (1), the center mounting frame (2), and the rear wheel assembly (3) are arranged in sequence. The front wheel assembly (1) includes a front wheel axle (11) and a front wheel connecting rod (12). One end of the front wheel connecting rod (12) is fixedly mounted on the front wheel axle (11), and the other end is positioned towards the center mounting frame (2). The end of the front wheel connecting rod (12) near the center mounting frame (2) is hinged to the center mounting frame (2). One end of the front elastic shock absorber (4) is hinged to... The front elastic shock absorber (4) is mounted on the front wheel axle (11), and the other end of the front elastic shock absorber (4) is hinged to the center mounting frame (2); the rear wheel assembly (3) includes a rear wheel axle (31) and a rear wheel connecting rod (32). One end of the rear wheel connecting rod (32) is fixedly mounted on the rear wheel axle (31) and the other end is set towards the center mounting frame (2). The end of the rear wheel connecting rod (32) near the center mounting frame (2) is hinged to the center mounting frame (2). One end of the rear elastic shock absorber (5) is hinged to the rear wheel axle (31), and the other end of the rear elastic shock absorber (5) is hinged to the center mounting frame (2).
2. The shock absorbing device for unmanned vehicles of claim 1, wherein, A front connector (13) is fixedly installed on the front wheel axle (11). Two front connecting grooves (131) are provided on the front connector (13). A rubber connector (6) is embedded in each of the two front connecting grooves (131). One end of the front wheel connecting rod (12) is fixedly connected to the two rubber connectors (6).
3. The shock absorbing device for unmanned vehicles of claim 2, wherein, One end of the front elastic shock absorber (4) is hinged to the front connector (13), and the other end is hinged to the middle mounting frame (2). The axis of the front elastic shock absorber (4) and the axis of the front wheel connecting rod (12) are on the same plane.
4. The shock absorbing device for unmanned vehicles of claim 3, wherein, Two front connectors (13) are provided, and the two front connectors (13) are arranged parallel to each other on the front wheel axle (11). Two front wheel connecting rods (12) are provided, and the two ends of the two front wheel connecting rods (12) are respectively connected to the front connectors (13) and the middle mounting frame (2). Two front elastic shock absorbers (4) are provided, and the two ends of the two front elastic shock absorbers (4) are respectively connected to the front connectors (13) and the middle mounting frame (2).
5. The unmanned vehicle shock absorption device according to claim 1, characterized in that, The angle between the front wheel connecting rod (12) and the front elastic shock absorber (4) is 45°~65°.
6. The unmanned vehicle shock absorption device according to claim 1, characterized in that, The angle between the front wheel connecting rod (12) and the horizontal plane is 10°~20°.
7. The unmanned vehicle shock absorption device according to claim 1, characterized in that, A rear connecting piece (33) is fixedly installed on the rear wheel axle (31). Two rear connecting grooves (331) are provided on the rear connecting piece (33). A rubber connecting piece (6) is embedded in each of the two rear connecting grooves (331). One end of the rear wheel connecting rod (32) is fixedly connected to the two rubber connecting pieces (6).
8. The unmanned vehicle shock absorption device according to claim 7, characterized in that, One end of the rear elastic shock absorber (5) is hinged to the rear connector (33), and the other end of the rear elastic shock absorber (5) is hinged to the middle mounting frame (2). The axis of the rear elastic shock absorber (5) and the axis of the front wheel connecting rod (12) are on the same plane.
9. The unmanned vehicle shock absorption device according to claim 8, characterized in that, Two rear connectors (33) are provided, and the two rear connectors (33) are arranged parallel to each other on the rear wheel axle (31). Two rear wheel connecting rods (32) are provided, and the two ends of the two rear wheel connecting rods (32) are respectively connected to the rear connectors (33) and the middle mounting frame (2). Two rear elastic shock absorbers (5) are provided, and the two ends of the two rear elastic shock absorbers (5) are respectively connected to the rear connectors (33) and the middle mounting frame (2).
10. The unmanned vehicle shock absorption device according to claim 1, characterized in that, The front elastic shock absorber (4) and the rear elastic shock absorber (5) have the same structure. The front elastic shock absorber (4) includes an upper shock absorber (41), a lower shock absorber (42) and a shock absorber spring (43). The upper shock absorber (41) and the lower shock absorber (42) are slidably engaged, and the axes of the upper shock absorber (41) and the lower shock absorber (42) are on the same straight line. The shock absorber spring (43) is sleeved on the upper shock absorber (41) and the lower shock absorber (42). The end of the upper shock absorber (41) is hinged to the middle mounting frame (2), and the lower shock absorber (42) is hinged to the front wheel assembly (1) or the rear wheel assembly (3).