Mecanum wheel damping device

Abstract

The utility model relates to the technical field of mechanical equipment, and discloses a Mecanum wheel damping device which comprises a Mecanum wheel, a power assembly connected with the Mecanum wheel, a connecting plate arranged on one side of the Mecanum wheel and fastened to the power device, and a damping assembly arranged on one side of the connecting plate. The damping assembly comprises a guide assembly fastened to the connecting plate, a guide plate fastened to the guide assembly and damping springs arranged at the two ends of the guide plate, and the lower ends of the damping springs are fastened to the connecting plate. The Mecanum wheel damping device with the structural design is compact in structure and can achieve good damping and buffering effects during use.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical equipment, and in particular to a Mecanum wheel shock absorbing device. Background Art

[0002] Mecanum wheels, as omnidirectional wheels, are widely used in robotics. Their characteristic is that they can move in any direction within a plane. However, in practical applications, Mecanum wheels are prone to generating large vibrations when traveling at high speeds or on complex terrain. This not only affects the stability of the mobile platform but can also damage the precision components within the machine. To address this issue, existing technologies often use shock absorbers. However, traditional shock absorbers have complex structural designs and weak shock absorption effects, making them difficult to adapt to the special motion requirements of Mecanum wheels. Existing shock absorption technologies often use rubber pads or simple spring shock absorbers. Although these technologies can reduce vibration to a certain extent, their shock absorption effect decreases significantly with continuous, high-intensity use, and they are not very effective in suppressing high-frequency vibrations. Therefore, the development of a Mecanum wheel shock absorption device with a simple structure and significant shock absorption effect has become an urgent problem to be solved in the current field of robotic mobility technology. Summary of the Invention

[0003] The purpose of this application is to overcome the above-mentioned technical problems and provide a Mecanum wheel shock absorption device with a novel structure and significant shock absorption effect.

[0004] This application provides a Mecanum wheel shock absorption device, which adopts the following technical solution:

[0005] A Mecanum wheel shock absorption device includes a Mecanum wheel, a power assembly connected to the Mecanum wheel, a connecting plate provided on one side of the Mecanum wheel and fastened to the power assembly, and a shock absorption assembly provided on one side of the connecting plate; the shock absorption assembly includes a guide assembly fastened to the connecting plate, a guide plate fastened to the guide assembly, and damping springs provided at both ends of the guide plate, wherein the lower ends of the damping springs are fastened to the connecting plate.

[0006] By adopting the above technical solution: the vibration generated by the Mecanum wheel during operation can be effectively absorbed and buffered by the setting of the damping spring and the guide assembly, thereby enhancing the stability and comfort of the mobile platform.

[0007] Preferably, the guide assembly includes a first guide seat, a second guide seat, a pre-tightening nut, a compression spring, a spring seat, and a first guide column that are coaxially arranged from top to bottom, and a first guide column that passes through the first guide seat, the second guide seat, the pre-tightening nut, the compression spring, and the spring seat. The upper end of the first guide column is fastened to the guide plate, the lower end of the first guide column is fastened to the upper end of the compression spring, the lower end of the compression spring is fastened to the spring seat, and the pre-tightening nut is threadedly connected to the first guide column. The guide assembly is provided with two groups and is respectively arranged adjacent to the damping spring. By adopting the above technical solution: by adjusting the elastic force of the compression spring through the pre-tightening nut, the Mecanum wheel can meet the use of a variety of different terrains, thereby achieving a better buffering and shock absorption effect; in addition, the spring force can be made more uniform by cooperating with the first guide seat and the second guide seat.

[0008] Preferably, it further comprises a shock-absorbing base plate connected to the guide plate, and a shock-absorbing sheet arranged between the shock-absorbing base plate and the guide plate.

[0009] By adopting the above technical solution: the provision of the shock-absorbing base plate can facilitate the installation and connection of the Mecanum wheel with the external component through the shock-absorbing assembly, thereby better improving the shock-absorbing performance.

[0010] Preferably, a third guide seat and a second guide column are provided between the two groups of guide assemblies, one end of the second guide column is fastened to the middle portion of the guide plate, and the other end of the second guide column is slidably connected to the third guide seat.

[0011] By adopting the above technical solution: the third guide seat and the second guide column are arranged between the two groups of guide components, thereby effectively improving the stability of the guide plate, making the guide plate move up and down more smoothly.

[0012] Preferably, the power assembly includes a motor and a transmission connected to the driving end of the motor, the transmission is fastened to the connecting plate, and the driving end of the transmission is coaxially fastened to the axle of the Mecanum wheel.

[0013] By adopting the above technical solution: the McNabb gear can be driven to rotate through the cooperation between the motor and the reducer.

[0014] Preferably, the Mecanum wheel includes an axle, wheel bodies disposed on both sides of the axle, and a plurality of rollers circumferentially distributed around the axle, with two of the wheel bodies pivotally connected at each end. The axle is provided with a hollow cavity for accommodating the transmission, and the end of the hollow cavity away from the connecting plate is fastened to the drive end of the transmission.

[0015] By adopting the above technical solution, the hollow cavity can conveniently accommodate the transmission, effectively reducing the volume and weight of the overall device, while also optimizing the power transmission efficiency. Due to this compact structural design, the application of the device is more flexible and extensive.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. The present invention effectively absorbs and cushions the vibrations generated by the Mecanum wheel during operation by providing a damping spring and a guide assembly, thereby enhancing the stability and comfort of the mobile platform.

[0018] 2. In the present invention, the transmission is housed in a hollow cavity inside the wheel axle, which effectively reduces the volume and weight of the entire device and optimizes the power transmission efficiency. Due to this compact structural design, the application of the device is more flexible and extensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an axonometric view of the Mecanum wheel shock absorbing device of the present application.

[0020] Figure 2 yes Figure 1 main view.

[0021] Figure 3 yes Figure 2 Cross-sectional view of section AA.

[0022] Figure 4 yes Figure 1 Axonometric view of the center shock absorber assembly.

[0023] Description of reference numerals:

[0024] 1. Mecanum wheel; 11. Axle; 12. Wheel body; 13. Roller;

[0025] 2. Power assembly; 21. Motor; 22. Transmission;

[0026] 3. Connecting plate;

[0027] 4. Shock absorption components;

[0028] 41. Guide assembly; 411. First guide seat; 412. Second guide seat; 413. Pre-tightening nut; 414. Compression spring; 415. Spring seat; 416. First guide post;

[0029] 42. Guide plate; 43. Damping spring;

[0030] 5. Shock-absorbing base plate;

[0031] 44. Third guide seat; 45. Second guide column. DETAILED DESCRIPTION

[0032] The present application is further described in detail below with reference to the accompanying drawings.

[0033] Reference Figure 1 and Figure 4 As shown, this embodiment provides a Mecanum wheel shock absorption device, including a Mecanum wheel 1, a power assembly 2 connected to the Mecanum wheel 1, a connecting plate 3 provided on one side of the Mecanum wheel 1 and fastened to the power assembly, and a shock absorption assembly 4 provided on one side of the connecting plate 3; further, the shock absorption assembly 4 includes a guide assembly 41 fastened to the connecting plate 3, a guide plate 42 fastened to the guide assembly 41, and damping springs 43 provided at both ends of the guide plate 42, and the lower end of the damping spring 43 is fastened to the connecting plate 3.

[0034] With the Mecanum wheel shock absorption device of the above-described structural design, when the Mecanum wheel 1 is vibrated by the gravity of the mobile platform during movement, the damping spring 43 in the shock absorption assembly 4 can provide a good buffering and shock absorption effect, thereby preventing the Mecanum wheel 1 from being damaged by the instantaneous impact caused by the vibration. At the same time, the vibration generated by the Mecanum wheel 1 during operation can be effectively absorbed and buffered, thereby enhancing the stability and comfort of the mobile platform.

[0035] Combine Figure 3 and Figure 4 As shown, the guide assembly 41 includes a first guide seat 411, a second guide seat 412, a pre-tightening nut 413, a compression spring 414, and a spring seat 415, which are coaxially arranged from top to bottom, and a first guide post 416 that penetrates the first guide seat 411, the second guide seat 412, the pre-tightening nut 413, the compression spring 414, and the spring seat 415. The upper end of the first guide post 416 is fastened to the guide plate 42, the lower end of the first guide post 416 is fastened to the upper end of the compression spring 414, and the lower end of the compression spring 414 is fastened to the spring seat 415. The pre-tightening nut 413 is threadedly connected to the first guide post 416. The guide assembly 41 is provided in two groups, each of which is disposed adjacent to the damping spring 43.

[0036] The guide assembly 41 designed with this structure is symmetrically provided with the above-mentioned guide assembly 41 at both ends of the guide plate 42. Therefore, when the guide plate 42 bears weight, the guide plate 42 can move up and down smoothly, and at the same time, it can also play a better shock-absorbing and buffering effect through the setting of the compression spring 414; in addition, the elastic force of the compression spring 414 can be changed by adjusting the pre-tightening nut 413 as needed, so as to adjust the shock-absorbing performance of the guide plate 42 under different load-bearing conditions; at the same time, through the cooperation of the two damping springs 43, not only the load-bearing capacity of the guide plate 42 can be increased, but also the shock-absorbing effect after bearing weight can be further improved.

[0037] Furthermore, in order to facilitate installation, the above-mentioned guide plate 42 is fastened to the shock-absorbing base plate 5, and then fixed to the external mobile platform through the shock-absorbing base plate 5; in order to make the shock-absorbing base plate 5 and the guide plate 42 better connected and avoid abnormalities such as loosening after connection, a shock-absorbing plate is also provided between the shock-absorbing base plate 5 and the guide plate 42.

[0038] Combine Figure 4 As shown, a third guide seat 44 and a second guide column 45 are provided between the two groups of guide assemblies 41. One end of the second guide column 45 is fastened to the middle part of the guide plate 42, and the other end of the second guide column 45 is slidably connected to the third guide seat 44, so as to further improve the stability of the guide plate 42 when it moves up and down, and avoid abnormalities such as tilting and jamming.

[0039] Combine Figure 1 and Figure 3 As shown, preferably, the power assembly 2 includes a motor 21 and a transmission 22 connected to the drive end of the motor 21. The transmission 22 is fastened to the connecting plate 3, and the drive end of the transmission 22 is coaxially fastened to the wheel axle 11 of the Mecanum wheel 1. Furthermore, the Mecanum wheel 1 includes an axle 11, wheel bodies 12 disposed on both sides of the axle 11, and a plurality of rollers 13 circumferentially distributed around the periphery of the axle 11 and pivotally connected to two of the wheel bodies 12 at each end. The axle 11 is provided with a hollow cavity for accommodating the transmission 22, and the end of the hollow cavity away from the connecting plate 3 is fastened to the drive end of the transmission 22.

[0040] The power assembly 2 with the above-described structure can compactly install a large portion of the transmission 22 into the hollow cavity provided in the wheel axle 11, thereby effectively reducing the volume and weight of the entire Mecanum wheel 1 device and making the structural connection more compact. At the same time, it also effectively shortens the transmission distance, thereby further improving the transmission efficiency of the power assembly 2.

[0041] The implementation principle of the embodiment of the present application is as follows: When the Mecanum wheel 1 device is in use, it can be installed at the four corners of the mobile platform via the shock-absorbing base plate 5. When the mobile platform vibrates during movement, the setting of the guide assembly 41 and the damping spring 43 can adaptively adjust the posture of the mobile platform and make it tend to be parallel to the ground. At the same time, the structural setting of the Mecanum wheel 1 device itself can effectively reduce the vibration of the mobile platform, thereby enhancing the stability and comfort of the mobile platform.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A Mecanum wheel shock absorption device, characterized in that: The invention comprises a Mecanum wheel (1), a power assembly (2) connected to the Mecanum wheel (1), a connecting plate (3) arranged on one side of the Mecanum wheel (1) and fastened to the power assembly (2), and a shock absorbing assembly (4) arranged on one side of the connecting plate (3); the shock absorbing assembly (4) comprises a guide assembly (41) fastened to the connecting plate (3), a guide plate (42) fastened to the guide assembly (41), and damping springs (43) arranged at both ends of the guide plate (42), wherein the lower end of the damping spring (43) is fastened to the connecting plate (3).

2. A Mecanum wheel shock absorption device according to claim 1, characterized in that: The guide assembly (41) comprises a first guide seat (411), a second guide seat (412), a pre-tightening nut (413), a compression spring (414), a spring seat (415) coaxially arranged from top to bottom, and a first guide column (416) penetrating the first guide seat (411), the second guide seat (412), the pre-tightening nut (413), the compression spring (414), and the spring seat (415).

3. The Mecanum wheel shock absorption device according to claim 2, characterized in that: The upper end of the first guide column (416) is fastened to the guide plate (42), the lower end of the first guide column (416) is fastened to the upper end of the compression spring (414), the lower end of the compression spring (414) is fastened to the spring seat (415), and the pre-tightening nut (413) is threadedly connected to the first guide column (416).

4. The Mecanum wheel shock absorption device according to claim 2, characterized in that: The guide components (41) are provided in two groups and are respectively arranged adjacent to the damping springs (43).

5. The Mecanum wheel shock absorption device according to claim 2, characterized in that: It also includes a shock-absorbing base plate (5) connected to the guide plate (42), and a shock-absorbing sheet arranged between the shock-absorbing base plate (5) and the guide plate (42).

6. The Mecanum wheel shock absorption device according to claim 4, characterized in that: A third guide seat (44) and a second guide column (45) are provided between the two groups of guide assemblies (41), one end of the second guide column (45) is fastened to the middle of the guide plate (42), and the other end of the second guide column (45) is slidably connected to the third guide seat (44).

7. The Mecanum wheel shock absorption device according to claim 1, characterized in that: The power assembly (2) includes a motor (21) and a transmission (22) connected to a driving end of the motor (21), wherein the transmission (22) is fastened to the connecting plate (3) and the driving end of the transmission (22) is coaxially fastened to the axle (11) of the Mecanum wheel (1).

8. The Mecanum wheel shock absorber according to claim 2, characterized in that: The Mecanum wheel (1) comprises a wheel axle (11), wheel bodies (12) arranged on both sides of the wheel axle (11), and a plurality of rollers (13) circumferentially distributed around the wheel axle (11) and pivotally connected to two of the wheel bodies (12) at each end.

9. The Mecanum wheel shock absorber according to claim 7, characterized in that: The wheel axle (11) is provided with a hollow cavity for accommodating the transmission (22), and one end of the hollow cavity away from the connecting plate (3) is fastened to the driving end of the transmission (22).

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