PEEK shaft sleeve for robot facet joint
By incorporating lubrication and heat conduction components within the PEEK bushings of the robot's small joints, the problems of friction, wear, and heat accumulation are solved, resulting in low friction, smooth operation, and long service life.
Patent Information
- Application Number
- CN202520839489.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-29
AI Technical Summary
The PEEK bushings used in existing robot small joints have a high coefficient of friction when sliding between the shaft and the inner wall of the bushing, resulting in severe wear, jamming, and the generation of a large amount of heat, which affects the smoothness of movement.
A lubrication component and a heat conduction component are installed inside the bushing body. The lubrication component releases the lubricating medium through the lubrication groove to reduce friction, while the heat conduction component quickly dissipates heat through the heat conduction layer and heat conduction groove. Combined with reinforcing ribs, the structural strength is improved.
It effectively reduces the coefficient of friction, minimizes wear, ensures smooth operation, and prevents overheating through rapid heat dissipation, thus extending the life of the bushing.
Smart Images
Figure CN223854670U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the PEEK shaft sleeve field especially relates to a robot small joint is with PEEK shaft sleeve. BACKGROUND
[0002] PEEK shaft sleeve, with polyether ether ketone (PEEK) as raw material, is a high-performance mechanical fitting. It is resistant to high temperature, and the continuous use temperature reaches 260 DEG C. Compared with the traditional shaft sleeve, it has long service life, can stably run under harsh working conditions, and is often used in high-precision fields such as aerospace and semiconductor.
[0003] In the prior art, the PEEK shaft sleeve for the robot small joint often has a large friction coefficient when the shaft and the inner wall of the shaft sleeve body slide relative to each other, which causes serious wear of the shaft and the shaft sleeve, and the robot small joint runs with a jam, and at the same time, due to the lack of low-friction materials to reduce resistance, a large amount of heat is generated during operation, which affects the smoothness of the small joint movement.
[0004] In view of the above problems, a PEEK shaft sleeve for a robot small joint is proposed to solve the above problems. INVENTION CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a kind of PEEK shaft sleeve for robot small joint, to improve the PEEK shaft sleeve for robot small joint in prior art when the shaft and the inner wall of the shaft sleeve body slide relative to each other, large friction coefficient, which causes serious wear of the shaft and the shaft sleeve, and the robot small joint runs with a jam, and at the same time, due to the lack of low-friction materials to reduce resistance, a large amount of heat is generated during operation, which affects the smoothness of the small joint movement.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of PEEK shaft sleeve for robot small joint, including shaft sleeve body, the shaft sleeve body is internally provided with reinforcing component, the shaft sleeve body outer side is provided with heat conduction component, the shaft sleeve body inner side is provided with lubricating component;
[0007] The lubricating component includes lubricating coating, the lubricating coating outer side is fixedly connected in the shaft sleeve body inner wall, the lubricating coating is internally provided with a plurality of storage components.
[0008] As a further description of the above technical scheme:
[0009] The storage component includes a plurality of lubricating grooves, and the lubricating grooves are formed in the inner side of the lubricating coating.
[0010] As a further description of the above technical scheme:
[0011] The heat conduction assembly comprises a heat conduction layer, the outer side of the heat conduction layer is fixedly connected to the outer side of the shaft sleeve body, and an auxiliary heat conduction assembly is arranged in the heat conduction layer.
[0012] As a further description of the above technical solution:
[0013] The auxiliary heat conduction assembly comprises a heat conduction groove, and the inner wall of the heat conduction groove is arranged in the heat conduction layer.
[0014] As a further description of the above technical solution:
[0015] The heat conduction layer is in a spiral shape.
[0016] As a further description of the above technical solution:
[0017] The reinforcing assembly comprises a plurality of reinforcing ribs, and the reinforcing ribs are mounted to the inner side of the shaft sleeve body.
[0018] As a further description of the above technical solution:
[0019] The shaft sleeve body is made of PEEK material, and the lubricating coating is made of polytetrafluoroethylene material.
[0020] As a further description of the above technical solution:
[0021] The heat conduction layer is made of graphene composite material.
[0022] The utility model has the advantages of the following:
[0023] 1、 the utility model discloses a shaft sleeve body, the shaft sleeve body is provided with a lubricating groove, the lubricating groove is arranged in the inner wall of the shaft sleeve body, and the lubricating groove is communicated with the lubricating coating, the lubricating coating is arranged on the outer side of the shaft sleeve body, and the lubricating coating is made of polytetrafluoroethylene material.
[0024] 2、 the utility model discloses a shaft sleeve body, the shaft sleeve body is provided with a heat conduction layer, the heat conduction layer is arranged in the inner wall of the shaft sleeve body, and the heat conduction layer is communicated with the heat conduction groove, the heat conduction groove is arranged on the outer side of the shaft sleeve body, and the heat conduction groove is made of graphene composite material. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 A perspective view of a PEEK shaft sleeve for a robot small joint is provided.
[0026] Figure 2A kind of structural diagram of lubricating groove of PEEK shaft sleeve for robot small joint is provided in the utility model;
[0027] Figure 3 For Figure 2 The enlarged view at A in the middle.
[0028] Legend:
[0029] 1, shaft sleeve main body;2, reinforcing rib;3, heat conducting layer;4, heat conducting groove;5, lubricating coating;6, lubricating groove. Specific embodiments
[0030] The technical solutions in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model below, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.
[0031] Referring to Figure 1 - Figure 3 An embodiment provided by the utility model: a PEEK shaft sleeve for robot small joint, comprising a shaft sleeve main body 1, a reinforcing assembly is arranged in the shaft sleeve main body 1, a heat conducting assembly is arranged on the outer side of the shaft sleeve main body 1, and a lubricating assembly is arranged on the inner side of the shaft sleeve main body 1.
[0032] The lubricating assembly comprises a lubricating coating 5, the outer side of the lubricating coating 5 is fixedly connected to the inner wall of the shaft sleeve main body 1, and a plurality of storage assemblies are arranged in the lubricating coating 5.
[0033] Specifically, the shaft sleeve main body 1 serves as a basic structure and provides an installation carrier for other assemblies; the reinforcing assembly is used for enhancing the structural strength of the shaft sleeve as a whole, so that the shaft sleeve is more resistant to compression and durable; the heat conducting assembly on the outer side of the shaft sleeve main body 1 is used for quickly dissipating the heat generated by the shaft sleeve due to friction, so as to ensure stable operation of the shaft sleeve; the lubricating assembly on the inner side of the shaft sleeve main body 1 is used for reducing the friction between the shaft and the shaft sleeve, and the plurality of storage assemblies in the lubricating coating 5 are used for storing lubricant, so as to continuously provide lubrication for the contact surface of the shaft and the shaft sleeve and reduce wear.
[0034] Referring to Figure 1 - Figure 3 The storage assembly comprises a plurality of lubricating grooves 6, and the outer side of the lubricating grooves 6 is arranged in the lubricating coating 5.
[0035] Specifically, the lubricating grooves 6 are used for storing lubricant, continuously supplementing lubricating substances for the contact surface of the shaft and the shaft sleeve, achieving long-acting lubrication, and reducing wear between components.
[0036] Referring toFigure 1 Figure 3 The heat conduction assembly comprises a heat conduction layer 3 fixedly connected outside the shaft sleeve body 1, and an auxiliary heat conduction assembly arranged inside the heat conduction layer 3. The auxiliary heat conduction assembly comprises a heat conduction groove 4 formed in the inner wall of the heat conduction layer 3.
[0037] Specifically, the heat conduction layer 3 helps the shaft sleeve to conduct the generated heat out; the heat conduction groove 4 increases the heat conduction area inside the heat conduction layer 3, accelerates the heat conduction speed, and cooperates with the heat conduction layer 3 to quickly dissipate the heat generated by the shaft sleeve due to friction and the like, so as to avoid the influence of the performance of the shaft sleeve due to overheating.
[0038] With reference to Figure 1 Figure 3 The heat conduction layer 3 is in a spiral shape, and the reinforcing assembly comprises a plurality of reinforcing ribs 2 mounted inside the shaft sleeve body 1. The shaft sleeve body 1 is made of PEEK material, the lubricating coating 5 is made of polytetrafluoroethylene material, and the heat conduction layer 3 is made of graphene composite material.
[0039] Specifically, the shaft sleeve body 1 is made of PEEK material, which is used to provide stable structural support and also serves as a mounting carrier for the reinforcing ribs 2 and the heat conduction layer 3; the plurality of reinforcing ribs 2 are mounted inside the shaft sleeve body 1 to improve the structural strength of the shaft sleeve, so that it can resist greater external force and reduce the risk of deformation; the heat conduction layer 3 is made of graphene composite material and is in a spiral shape attached to the outside of the shaft sleeve body 1, which is used to increase the heat dissipation area and accelerate the heat conduction, so as to efficiently dissipate the heat generated during the operation of the shaft sleeve; the lubricating coating 5 is made of polytetrafluoroethylene material and is coated on the inner wall of the shaft sleeve body 1, which is used to reduce the frictional resistance between the shaft and the shaft sleeve, ensure the smoothness of the mechanical operation, and reduce the degree of wear.
[0040] Working principle: the shaft sleeve body 1 is made of PEEK material, which is firm and durable. The reinforcing assembly inside the shaft sleeve body 1 comprises a plurality of reinforcing ribs 2, which can enhance the overall strength and rigidity of the shaft sleeve body 1, reduce the possibility of deformation or damage when bearing complex stress, ensure the stable operation of the shaft sleeve, and prolong the service life of the shaft sleeve.
[0041] When the robot small joint operates, the shaft and the inner wall of the shaft sleeve body 1 slide relative to each other, the lubricating groove 6 releases the lubricating medium, such as molybdenum disulfide grease, so that the lubricating coating 5 continuously provides lubrication for the rotation of the shaft, greatly reduces the friction coefficient, reduces wear, ensures the smooth operation of the robot small joint, and the low friction coefficient of polytetrafluoroethylene further reduces the frictional resistance between the shaft and the shaft sleeve, reduces wear, and also reduces the heat generated by friction, ensuring the smoothness of the small joint movement.
[0042] When the bushing generates heat due to friction or other reasons, the excellent thermal conductivity of the graphene composite material can quickly absorb the heat and evenly distribute it through the spiral heat-conducting layer 3. The heat-conducting groove 4 increases the heat-conducting area and accelerates the heat transfer speed, allowing the heat to be efficiently dissipated into the surrounding environment. This effectively prevents the bushing from degrading due to overheating. When the bushing generates heat due to friction, the heat is quickly transferred through the bushing body 1 to the heat-conducting layer 3 and then efficiently discharged through the heat-conducting groove 4. This effectively reduces the working temperature of the bushing, prevents the material performance from degrading due to overheating, extends the working life of the bushing, and ensures that the robot's small joints work in a stable temperature environment.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A PEEK bushing for a robotic small joint, comprising a bushing body (1), characterized in that: The shaft sleeve body (1) is internally provided with a reinforcing assembly, the shaft sleeve body (1) is externally provided with a heat conduction assembly, and the shaft sleeve body (1) is internally provided with a lubricating assembly; The lubricating assembly comprises a lubricating coating (5), the lubricating coating (5) is fixedly connected to the inner wall of the shaft sleeve body (1), and the lubricating coating (5) is internally provided with a plurality of storage assemblies.
2. The PEEK bushing for a robotic small joint of claim 1, wherein: The storage assembly comprises a plurality of lubricating grooves (6), and the lubricating grooves (6) are externally formed in the lubricating coating (5).
3. The PEEK bushing for a robotic small joint of claim 1, wherein: The heat conduction assembly comprises a heat conduction layer (3), the heat conduction layer (3) is fixedly connected to the outer side of the shaft sleeve body (1), and the heat conduction layer (3) is internally provided with an auxiliary heat conduction assembly.
4. The PEEK bushing for a robotic small joint of claim 3, wherein: The auxiliary heat conduction assembly comprises a heat conduction groove (4), and the heat conduction groove (4) is internally formed in the heat conduction layer (3).
5. The PEEK bushing for a robotic small joint of claim 4, wherein: The heat conduction layer (3) is in a spiral shape.
6. The PEEK bushing for a robotic small joint of claim 1, wherein: The reinforcing assembly comprises a plurality of reinforcing ribs (2), and the reinforcing ribs (2) are externally mounted in the shaft sleeve body (1).
7. The PEEK bushing for a robotic small joint of claim 1, wherein: The shaft sleeve body (1) is made of PEEK, and the lubricating coating (5) is made of polytetrafluoroethylene.
8. The PEEK bushing for a robotic small joint of claim 3, wherein: The heat conduction layer (3) is made of graphene composite material.