Mecanum wheel damping mounting rack
By tilting the installation of the triangular shock absorbing mount formed by the shock absorbing components and swing arm structure, the problem of poor shock absorption effect of the McNum wheel shock absorbing structure under oblique resistance is solved, and the horizontal and vertical impact on the wheat wheel is achieved The effective buffering significantly improves the shock absorption effect and reduces the risk of structural damage.
Patent Information
- Application Number
- CN202420918846.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-29
AI Technical Summary
When the existing McNum wheel shock absorbing structure crosses the barrier, oblique resistance causes rigid impact between the frame and the shock absorbing component, affecting the shock absorbing effect and may cause damage to the shock absorbing structure.
By tilting the shock absorbing components and shock absorbing swing arm structure, a triangular shock absorbing mount can not only buffer oblique impacts, but also effectively buffer the impact of component forces in the horizontal and up and down directions, improving the shock absorption effect.
The shock absorption effect of the McNum wheel is significantly improved, the risk of structural damage to the shock absorbing mount is reduced, and the effective absorption and dispersion of impact forces during the movement of the McNum wheel is achieved.
Smart Images
Figure CN222136382U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of Mecanum wheels, in particular to a Mecanum wheel shock-absorbing mounting frame. Background Art
[0002] In the existing Mecanum wheel shock-absorbing structure, the shock-absorbing assembly is installed on the frame in a direction perpendicular to the ground. When the Mecanum wheel is running on a flat road, the shock-absorbing effect of this shock-absorbing structure is good. However, when the Mecanum wheel goes over an obstacle, the Mecanum wheel is subjected to a force in an oblique upward direction from the tangent point in front of the Mecanum wheel to the center of the Mecanum wheel. There is an angle between this resistance and the vertical movement direction of the shock-absorbing assembly. Therefore, the oblique upward resistance will produce a rigid impact between the frame and the shock-absorbing assembly, affecting the shock-absorbing effect. The shock-absorbing assembly can only offset the impact of the component force perpendicular to the ground direction decomposed from the oblique resistance, but cannot effectively buffer the impact in the horizontal direction, which not only makes the shock-absorbing effect poor, but also damages the shock-absorbing structure. Summary of the invention
[0003] The utility model aims to provide a novel Mecanum wheel shock-absorbing mounting frame, which can buffer oblique impacts and impacts of force components in horizontal directions and in vertical directions through an obliquely installed shock-absorbing component and a shock-absorbing swing arm structure, thereby solving the problems existing in the existing Mecanum wheel shock-absorbing structure.
[0004] To achieve the above purpose, the utility model provides the following technical solutions: a Mecanum wheel shock-absorbing mounting frame, comprising an upper mounting arm and a lower connecting rod, the upper end of the connecting rod is hingedly connected to the front of the mounting arm, and a wheel axle hole for mounting the Mecanum wheel axle is arranged in the middle of the connecting rod; the shock-absorbing mounting frame also includes a shock-absorbing assembly inclined from bottom to top toward the rear of the mounting arm, the lower end of the shock-absorbing assembly is hingedly connected to the lower end of the connecting rod, and the upper end is hingedly connected to the rear of the mounting arm. In the above technical solution, the entire shock-absorbing mounting frame is a triangular structure, wherein the Mecanum wheel is mounted on the front connecting rod, and the lower end of the connecting rod is connected to the shock-absorbing assembly. Since the shock-absorbing assembly is tilted, when the Mecanum wheel is impacted by the ground, in addition to the shock-absorbing assembly buffering the impact, the connecting rod will also swing upward with the deformation of the shock-absorbing assembly, so as to achieve the purpose of swing arm shock absorption, so that the Mecanum wheel can be provided with lateral and longitudinal buffering at the same time, thereby effectively improving the shock absorption effect.
[0005] As a preferred solution, the shock absorbing assembly includes a shock absorber having a telescopic rod I and a telescopic rod II, and also includes a coil spring sleeved on the outer periphery of the shock absorber, the upper end of the coil spring contacts an upper retaining ring arranged on the telescopic rod I, and the lower end contacts a lower retaining ring arranged on the telescopic rod II. Preferably, a threaded section is arranged on the outer periphery of the telescopic rod II, the lower retaining ring has an internal thread matched therewith, and the position of the lower retaining ring on the threaded section can be adjusted, thereby adjusting the preload force of the coil spring.
[0006] As a preferred embodiment, the front part of the mounting arm is an articulated arm I that is symmetrically arranged on the left and right, there is an avoidance space between the two articulated arms I, and an articulation hole I is coaxially arranged on the two articulated arms I, and the upper end of the connecting rod is installed between the articulated arms I through an articulation shaft I that passes through the articulation hole I; the rear part of the mounting arm is an articulated arm II that is symmetrically distributed on the left and right, and articulation holes II are coaxially arranged on the two articulated arms II, and the upper end of the shock absorber is installed between the two articulated arms II through an articulation shaft III that passes through the articulation hole II.
[0007] As a preferred solution, the lower end of the connecting rod is two articulated arms III that are symmetrically arranged on the left and right, and an articulated hole III is coaxially arranged on the articulated arm III, and the lower end of the shock absorber is installed between the two articulated arms III through an articulated shaft II that passes through the articulated hole III. Preferably, at least two groups of articulated holes III are arranged on the articulated arm III, and the articulated holes III are distributed along the length direction of the connecting rod. The installation position of the lower connector can be adjusted according to the road conditions and the size of the Mecanum wheel, so that the shock absorbing assembly can achieve the best shock absorbing effect.
[0008] As a preferred solution, a boss with protrusions at both left and right ends is provided in the middle of the connecting rod, and the axle hole passes through the boss horizontally from the middle.
[0009] Compared with the prior art, the main difference of this embodiment is that the shock absorbing assembly is installed tilted backward and upward. This feature can make the deformation direction of the shock absorbing assembly close to the direction of the impact force received by the Mecanum wheel. Therefore, for the impact received by the Mecanum wheel during movement, the shock absorbing assembly will make a compression in a direction almost in the same direction as the impact force, which can not only improve the shock absorbing effect, but also significantly reduce the lateral impact received by the shock absorbing mounting frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0011] Figure 1 A schematic diagram of the planar structure of a Mecanum wheel shock-absorbing mounting frame according to an embodiment of the utility model;
[0012] Figure 2 for Figure 1 The three-dimensional structural schematic diagram of the Mecanum wheel shock-absorbing mounting frame is shown;
[0013] Figure 3 for Figure 2 The schematic diagram of the structure of the mounting arm in the Mecanum wheel shock-absorbing mounting frame is shown;
[0014] Figure 4 for Figure 2 The schematic diagram of the structure of the connecting rod in the Mecanum wheel shock-absorbing mounting frame is shown;
[0015] Figure 5 for Figure 2 The schematic diagram of the structure of the shock absorbing assembly in the shock absorbing mounting frame of the Mecanum wheel is shown;
[0016] Figure 6 for Figure 2 Schematic diagram of the use status of the shock-absorbing mounting frame shown.
[0017] In the figure, mounting arm 1, connecting rod 2, shock absorbing assembly 3, articulated shaft I4, articulated shaft II5, articulated shaft III6, wheel axle hole 7, bolt mounting hole 101, boss 201, articulated arm I102, avoidance space 103, articulated hole I104, articulated arm II105, articulated hole II106, shaft hole I202, articulated arm III203, articulated hole III204, shock absorber 301, lower connector 302, upper connector 303, coil spring 304, upper retaining ring 305, lower retaining ring 306, threaded segment 307, Mecanum wheel 10, and obstacle 20. DETAILED DESCRIPTION
[0018] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0019] Figure 1 and Figure 2 This is an embodiment of the utility model, a Mecanum wheel shock-absorbing mounting frame, which is triangular in shape as a whole, and includes a mounting arm 1, a connecting rod 2 and a shock-absorbing assembly 3 connected end to end. Specifically, the mounting arm 1 is arranged horizontally, and three bolt mounting holes 101 are arranged longitudinally through the middle thereof, and the mounting arm 1 is mounted on the back of the chassis by bolts; Figure 2 As shown, the front part of the mounting arm 1 is a symmetrically arranged articulated arm I102, an avoidance space 103 is formed between the two articulated arms I102, and articulated holes I104 are coaxially arranged on the two articulated arms I102; the rear part of the mounting arm 1 is an articulated arm II105 symmetrically distributed on the left and right. Figure 1-3It can be seen that the articulated arm II105 extends downward from the back of the mounting arm 1, and the two articulated arms II105 are coaxially provided with articulated holes II106. Figure 4 As shown, an axial hole I202 is provided at the upper end of the connecting rod 2, which is located between adjacent articulated arms I102 and passes through the articulated hole I104 and the axial hole I202, so that the connecting rod 2 can deflect under the constraint of the articulated axis I4; a circular boss 201 with protrusions on both ends is provided in the middle of the connecting rod 2, and an axle hole 7 is coaxially provided on the boss 201, and the axle of the Mecanum wheel is installed in the axle hole 7 when in use; the lower end of the connecting rod 2 is two articulated arms III203 symmetrically arranged on the left and right, and a coaxial articulated hole III204 is provided on the articulated arm III203.
[0020] like Figure 5 As shown, the shock absorbing assembly 3 used includes a shock absorber 301 and a coil spring 304 sleeved on the outer periphery of the shock absorber 301, wherein the shock absorber 301 is composed of a telescopic rod I and a telescopic rod II, the upper end of the coil spring 304 contacts an upper retaining ring 305 arranged on the telescopic rod I, and the lower end contacts a lower retaining ring 306 installed on the telescopic rod II; in addition, an upper connector 303 is arranged at the upper end of the telescopic rod I, and the upper connector is located between the articulated arms II105 and connected through the articulated shaft III6 is hingedly installed; a lower connecting head 302 is set at the lower end of the telescopic rod II, and the lower connecting head 302 is located between the hinged arms III203 and is hingedly installed through the hinge axis II5, so that the shock absorbing component 3 (the axial connection line between the hinge axis II5 and the hinge axis III6) and the horizontal direction have an angle a, and in this embodiment a is 51°, and the connecting rod 2 (the axial connection line between the hinge axis I4 and the hinge axis II5) and the horizontal direction have an angle β, and in this embodiment β is 43°.
[0021] In this embodiment, two sets of hinge holes III204 are provided on the hinge arm III203, and the angle a can be adjusted by changing the installation position of the lower connector 302. When the height of the road obstacle is small, the lower connector 302 can be installed at the lowest hinge hole III204, and when the height of the road obstacle is large, the lower connector 302 can be installed at the upper hinge hole III204. In addition, in this embodiment, a threaded section 307 is provided on the outer periphery of the telescopic rod II, and the lower retaining ring 306 has an internal thread matched therewith, so that the position of the lower retaining ring 306 on the threaded section 307 can be adjusted, thereby adjusting the preload force of the coil spring 304.
[0022] like Figure 6As shown, when the Mecanum wheel 10 encounters an obstacle 20, the direction of the resistance F of the obstacle 20 on the Mecanum wheel 10 points to the upper right, with a longitudinal force F1 and a lateral force F2. For the existing shock-absorbing mounting frame, since its spring is installed longitudinally, the shock-absorbing structure will buffer the longitudinal force F1, and the lateral force F2 will act on the mounting structure of the Mecanum wheel. Based on the above shock-absorbing mounting frame provided in this embodiment, as shown in FIG. Figure 6 As shown, the installation orientation is that the shock absorbing component 3 is located behind the movement direction. Since the shock absorbing component 3 is installed tilted to the upper right, it is closer to the direction of the resistance F. Therefore, it can absorb both longitudinal and lateral impacts, thereby achieving the best shock absorbing effect. The shock absorbing mounting frame of this structure can effectively reduce the damage of the resistance F to its own structure.
[0023] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.
[0024] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.
[0025] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.
Claims
1. Mecanum wheel shock-absorbing mounting frame, characterized by: The invention comprises an upper mounting arm and a lower connecting rod, wherein the upper end of the connecting rod is hingedly connected to the front of the mounting arm, and a wheel axle hole for mounting a wheel axle of a Mecanum wheel is arranged in the middle of the connecting rod; the shock-absorbing mounting frame also comprises a shock-absorbing assembly inclined from bottom to top toward the rear of the mounting arm, wherein the lower end of the shock-absorbing assembly is hingedly connected to the lower end of the connecting rod, and the upper end is hingedly connected to the rear of the mounting arm.
2. The Mecanum wheel shock-absorbing mounting bracket according to claim 1, characterized in that: The shock absorbing assembly includes a shock absorber having a telescopic rod I and a telescopic rod II, and also includes a coil spring sleeved on the outer circumference of the shock absorber, the upper end of the coil spring contacts the upper retaining ring arranged on the telescopic rod I, and the lower end contacts the lower retaining ring arranged on the telescopic rod II.
3. The Mecanum wheel shock-absorbing mounting bracket according to claim 2, characterized in that: A threaded section is arranged on the outer periphery of the telescopic rod II, and the lower retaining ring has an internal thread matched therewith, and the position of the lower retaining ring on the threaded section can be adjusted, thereby adjusting the preload force of the spiral spring.
4. The Mecanum wheel shock-absorbing mounting bracket according to any one of claims 1 to 3, characterized in that: The front part of the mounting arm is an articulated arm I that is symmetrically arranged on the left and right, there is an avoidance space between the two articulated arms I, and an articulation hole I is coaxially arranged on the two articulated arms I, and the upper end of the connecting rod is installed between the articulated arms I through an articulation shaft I that passes through the articulation hole I; the rear part of the mounting arm is an articulated arm II that is symmetrically distributed on the left and right, and articulation holes II are coaxially arranged on the two articulated arms II, and the upper end of the shock absorber is installed between the two articulated arms II through an articulation shaft III that passes through the articulation hole II.
5. The Mecanum wheel shock-absorbing mounting bracket according to claim 4, characterized in that: The lower end of the connecting rod is two articulated arms III symmetrically arranged on the left and right, and an articulated hole III is coaxially arranged on the articulated arm III. The lower end of the shock absorber is installed between the two articulated arms III through an articulated shaft II passing through the articulated hole III.
6. The Mecanum wheel shock-absorbing mounting bracket according to claim 5, characterized in that: At least two groups of hinge holes III are arranged on the hinge arm III, and the hinge holes III are distributed along the length direction of the connecting rod.
7. The Mecanum wheel shock-absorbing mounting bracket according to claim 4, characterized in that: A boss with protrusions at both left and right ends is arranged in the middle of the connecting rod, and the axle hole passes through the boss transversely from the middle.