Friction damping shock absorption head assembly

Abstract

The utility model discloses a friction damping shock absorption head assembly, relates to the technical field of robot moving wheel assemblies, and aims to solve the problems that in the prior art, a shock absorption mechanism used by an existing robot wheel body is not compact enough in structure, poor in shock absorption effect and not good in rebound force release effect. A friction damping cylinder body is connected into the guide outer sleeve in a sliding mode, a friction damping cylinder sleeve is arranged in the friction damping cylinder body, a friction damping piston is connected into the friction damping cylinder sleeve in a sliding mode, a light-load serpentine spring is arranged in the friction damping cylinder body, and a friction damping head bottom plate is connected to the lower portion of the friction damping cylinder body. A connecting plate is arranged below the guide outer sleeve, a cylinder cover is arranged on the guide outer sleeve, a damping cylinder sleeve pressing plate is arranged on the friction damping cylinder body, and a damping head top plate is arranged between the damping cylinder sleeve pressing plate and the cylinder cover.

Description

Technical Field

[0001] The utility model relates to the technical field of robot moving wheel assemblies, in particular to a friction damping shock-absorbing head assembly. Background Technique

[0002] A robot moving through wheels can ensure smooth driving only when moving on a relatively flat road surface. When driving on a complex road condition, a shock-absorbing mechanism often needs to be added;

[0003] For example, the publication number is CN221021065U, a robot shock-absorbing mechanism, which relates to the technical field of robots, includes a robot base, a front plate and a rear plate. The front plate and the rear plate are arranged at the bottom of one side of the robot base. A connecting shaft is arranged inside the adjacent ends of the front plate and the rear plate. The front plate and the rear plate are both rotatably connected to the outside of the connecting shaft. L-shaped connecting frames are fixedly connected to the tops of the opposite ends of the front plate and the rear plate. A limiting rod is fixedly connected to the top inside the L-shaped connecting frame. A shock-absorbing spring is arranged outside the limiting rod, and a limiting cylinder is arranged outside the bottom of the limiting rod. The bottom of the limiting cylinder is fixedly connected with a limiting plate, and the bottom of the limiting plate is fixedly connected with a connecting rod;

[0004] The above application repeatedly compresses the shock-absorbing spring to reduce the impact when landing, achieving the shock-absorbing effect, so that the robot will not shake sharply, improving the smoothness of the robot's driving. However, adding a shock-absorbing mechanism to the moving wheel, the shock-absorbing mechanism will have a deflected center of gravity, with a complex structure and a large volume, and the shock-absorbing effect is not good, and the effect of rebound and force release is not good enough; Therefore, there is an urgent need in the market to develop a friction damping shock-absorbing head assembly to help people solve the existing problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a friction damping shock-absorbing head assembly to solve the problems in the above background technique that the shock-absorbing mechanism used in the current robot wheel body is not compact enough, the shock-absorbing effect is not good, and the effect of rebound and force release is not good enough.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A friction damping shock-absorbing head assembly, including a guiding outer sleeve, a friction damping cylinder body is slidably connected inside the guiding outer sleeve, a friction damping cylinder sleeve is arranged inside the friction damping cylinder body, a friction damping piston is slidably connected inside the friction damping cylinder sleeve, a light-load serpentine spring is arranged inside the friction damping cylinder body, and a friction damping shock-absorbing head bottom plate is connected to the lower part of the friction damping cylinder body.

[0007] Through the above technical solution, the friction damping shock absorber head assembly includes a friction damping cylinder block, a friction damping cylinder sleeve, a friction damping piston and a light-load serpentine spring. The friction damping between the friction damping cylinder sleeve and the friction damping piston is used to play a role of damping and buffering, and the light-load serpentine spring is used to play a role of shock absorption. The elasticity during shock absorption will not be too large, so as to achieve an efficient and rapid shock absorption effect. The overall structure is a sleeve type structure, which is small in size and convenient for connection and installation. It is convenient to be installed on the moving wheels of the robot, does not affect the driving of the robot, enables better force dissipation when the robot moves, and has a better shock absorption effect.

[0008] In a preferred example of the present utility model, it can be further configured that: a cylinder head is arranged on the guiding outer sleeve, a damping cylinder sleeve pressing plate is arranged on the friction damping cylinder block, and a damping shock absorber head top plate is arranged between the damping cylinder sleeve pressing plate and the cylinder head.

[0009] Through the above technical solution, during the upward movement of the friction damping cylinder block, the damping shock absorber head top plate is used to limit the upward stroke of the friction damping cylinder block, and at the same time, it can also play a role in reducing the impact force.

[0010] In a preferred example of the present utility model, it can be further configured that: the friction damping piston and the cylinder head are fixedly connected by a nut, and a rubber ring limiting ring is arranged on the outer side of the friction damping piston.

[0011] Through the above technical solution, the rubber ring limiting ring plays a role of sealing, so that the friction damping piston has balanced damping when moving.

[0012] In a preferred example of the present utility model, it can be further configured that: a connecting plate is arranged below the guiding outer sleeve, a damping pressing sleeve is arranged in the friction damping cylinder sleeve, and a rolling row is arranged between the friction damping cylinder block and the guiding outer sleeve.

[0013] Through the above technical solution, the connecting plate is connected to the robot, the damping pressing sleeve limits the moving stroke of the friction damping piston, and the rolling row reduces the friction force between the friction damping cylinder block and the guiding outer sleeve.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The friction damping shock absorber head assembly of this utility model includes a friction damping cylinder block, a friction damping cylinder sleeve, a friction damping piston and a light-load serpentine spring. The friction damping between the friction damping cylinder sleeve and the friction damping piston is used to play a role of damping and buffering, and the light-load serpentine spring is used to play a role of shock absorption. The elasticity during shock absorption will not be too large, so as to achieve an efficient and rapid shock absorption effect. The overall structure is a sleeve type structure, which is small in size and convenient for connection and installation. It is convenient to be installed on the moving wheels of the robot, does not affect the driving of the robot, enables better force dissipation when the robot moves, and has a better shock absorption effect.

[0016] 2. During the upward movement of the friction damping cylinder block, the damping shock-absorbing head top plate is used to limit the upward stroke of the friction damping cylinder block, and at the same time, it can also play a role in reducing the impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic top view of the friction damping shock-absorbing head assembly of the present utility model;

[0018] Figure 2 It is an overall schematic bottom view of the friction damping shock-absorbing head assembly of the present utility model;

[0019] Figure 3 It is a sectional view taken along the front view of the friction damping shock-absorbing head assembly of the present utility model;

[0020] Figure 4 It is a sectional view taken along the right view of the friction damping shock-absorbing head assembly of the present utility model;

[0021] Figure 5 It is a sectional view taken along the left view of the friction damping shock-absorbing head assembly of the present utility model;

[0022] In the figure: 1. Guide outer sleeve; 2. Connecting plate; 3. Friction damping shock-absorbing head bottom plate; 4. Cylinder head; 5. Friction damping cylinder block; 6. Roller row; 7. Friction damping cylinder sleeve; 8. Friction damping piston; 9. Damping cylinder sleeve pressure plate; 10. Damping shock-absorbing head top plate; 11. Rubber ring limit ring; 12. Damping compression sleeve; 13. Light load serpentine spring. SPECIFIC EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 of the embodiments.

[0024] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0025] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0026] Please refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown in, an embodiment provided by the present utility model: a friction damping shock absorber head assembly, which includes a guide outer sleeve 1, a friction damping cylinder body 5 is slidably connected inside the guide outer sleeve 1, a friction damping cylinder sleeve 7 is arranged inside the friction damping cylinder body 5, a friction damping piston 8 is slidably connected inside the friction damping cylinder sleeve 7, a light load serpentine spring 13 is arranged inside the friction damping cylinder body 5, and a friction damping shock absorber head bottom plate 3 is connected below the friction damping cylinder body 5.

[0027] Please refer to Figure 1 and Figure 4 As shown in, a cylinder head 4 is arranged on the guide outer sleeve 1, a damping cylinder sleeve pressing plate 9 is arranged on the friction damping cylinder body 5, a damping shock absorber head top plate 10 is arranged between the damping cylinder sleeve pressing plate 9 and the cylinder head 4, the cylinder head 4 and the guide outer sleeve 1 are fixedly connected by bolts, the damping cylinder sleeve pressing plate 9 and the friction damping cylinder body 5 are fixedly connected by bolts, and the damping shock absorber head top plate 10 and the friction damping cylinder body 5 are fixedly connected by bolts.

[0028] Please refer to Figure 4 As shown in, the friction damping piston 8 and the cylinder head 4 are fixedly connected by nuts, and a rubber ring limiting ring 11 is arranged on the outer side of the friction damping piston 8.

[0029] Please refer to Figure 1 、 Figure 2 and Figure 3 As shown in, a connecting plate 2 is arranged below the guide outer sleeve 1, and the connecting plate 2 and the guide outer sleeve 1 are set as an integral structure.

[0030] Please refer to Figure 4 As shown in, a damping pressing sleeve 12 is arranged inside the friction damping cylinder sleeve 7, and the damping pressing sleeve 12 and the friction damping cylinder sleeve 7 are set as an integral structure.

[0031] Please refer to Figure 3 As shown in, a rolling row 6 is arranged between the friction damping cylinder body 5 and the guide outer sleeve 1.

[0032] Working principle: When in use, please refer to Figure 1 、 Figure 2 、Figure 3 , Figure 4 and Figure 5 , when the light-load serpentine spring 13 is in a compressed state, the friction damping piston 8 has a stroke both above and below inside the friction damping cylinder sleeve 7, so that during the shock absorption process, the friction damping piston 8 will not be impacted. Then, the connecting plate 2 is connected to the robot, and the friction damping shock head bottom plate 3 is connected to the moving wheel. Thus, during the moving process, the elastic potential energy of the light-load serpentine spring 13 can be utilized to play a buffering role, and the up and down movement of the friction damping cylinder body 5 and the up and down damping friction of the friction damping piston 8 are utilized to play a shock absorption role, so that rapid buffering and shock absorption can be achieved, the structure is compact, and the shock absorption effect is better.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. Friction damping shock absorber head assembly, including a guide outer sleeve (1), characterized in that: A friction damping cylinder body (5) is slidably connected inside the guiding outer sleeve (1). A friction damping cylinder sleeve (7) is arranged inside the friction damping cylinder body (5). A friction damping piston (8) is slidably connected inside the friction damping cylinder sleeve (7). A light-load serpentine spring (13) is arranged inside the friction damping cylinder body (5). A friction damping shock-absorbing head bottom plate (3) is connected to the lower part of the friction damping cylinder body (5).

2. The friction damping shock absorber head assembly according to claim 1, wherein: A cylinder head (4) is arranged on the guiding outer sleeve (1). A damping cylinder sleeve pressing plate (9) is arranged on the friction damping cylinder body (5). A damping shock-absorbing head top plate (10) is arranged between the damping cylinder sleeve pressing plate (9) and the cylinder head (4).

3. The friction damping shock absorber head assembly according to claim 2, wherein: The friction damping piston (8) is fixedly connected with the cylinder head (4) by a nut. A rubber ring limiting ring (11) is arranged on the outer side of the friction damping piston (8).

4. The friction damping shock absorber head assembly according to claim 1, wherein: A connecting plate (2) is arranged below the guiding outer sleeve (1).

5. The friction damping shock absorber head assembly according to claim 1, wherein: A damping pressing sleeve (12) is arranged inside the friction damping cylinder sleeve (7).

6. The friction damping shock absorber head assembly according to claim 1, wherein: A rolling row (6) is arranged between the friction damping cylinder body (5) and the guiding outer sleeve (1).

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