Star-shaped sleeve with annular groove

Abstract

The utility model provides a starlike sleeve with an annular groove, which relates to the technical field of mechanical transmission parts and comprises a starlike sleeve body, a shaft hole is arranged in the middle of the starlike sleeve body, steel ball cavities which are uniformly distributed in a surrounding manner are arranged on the outer end face of the starlike sleeve body, and an inner annular groove is arranged on the wall face of the shaft hole. An oil injection hole is formed in the surface of the starlike sleeve body, an annular oil storage cavity is formed in the starlike sleeve body, and a dustproof plug is inserted into the oil injection hole. The inner ring groove formed in the wall face of the shaft hole and the communicating hole in the wall face of the inner ring groove are communicated with the inner annular oil storage cavity, lubricating oil in the oil storage cavity can evenly flow to the contact portion of the shaft hole and a shaft, the oil guide groove formed in the side wall of the steel ball cavity is communicated with the oil storage cavity, lubrication is provided for rolling of steel balls, rolling resistance is reduced, and the service life of the bearing is prolonged. Therefore, a good lubricating effect can be achieved, friction and abrasion are reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission components, and in particular to a star-shaped sleeve with annular groove. Background Technology

[0002] The star-shaped sleeve is a key component for achieving smooth power transmission, ensuring that the engine's power is efficiently and stably transmitted to the wheels during vehicle operation, regardless of steering or road conditions, thus guaranteeing vehicle performance. In the joint transmission mechanism of robotic arms on industrial automated production lines, the star-shaped sleeve, in conjunction with other transmission components, enables flexible movement and precise positioning of the robotic arm, meeting various complex operational needs on the production line.

[0003] In the existing technology, from a lubrication perspective, many star-shaped sleeves lack an effective internal oil storage and supply structure, and can only rely on external periodic oil injection to maintain lubrication. This is not only cumbersome to operate, but also difficult to guarantee a continuous and uniform lubrication effect when the equipment is running continuously or in a harsh working environment. In some engineering machinery operating in the field, due to the dusty and violent working environment, the lubrication points of traditional star-shaped sleeves are easily blocked, resulting in insufficient lubrication, increased friction between the shaft and shaft hole and other transmission contact parts, aggravated wear, significantly increased equipment failure rate, and a substantial increase in maintenance costs. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the existing star-shaped sleeve lacks an effective internal oil storage and supply structure, which makes it difficult to lubricate the balls installed on the outer spherical surface of the star-shaped sleeve between the shaft and the shaft hole, and thus still causes wear after a period of time. Therefore, a star-shaped sleeve with annular groove is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a star-shaped sleeve with annular groove, comprising a star-shaped sleeve body, a shaft hole in the middle of the star-shaped sleeve body, a uniformly distributed steel ball cavity on the outer end face of the star-shaped sleeve body, an inner annular groove in the wall of the shaft hole, an oil injection hole in the surface of the star-shaped sleeve body, an annular oil storage cavity in the interior of the star-shaped sleeve body, a dust plug inserted into the oil injection hole, a connecting hole in the wall of the inner annular groove, and an oil guide groove in the side wall of the steel ball cavity.

[0006] Preferably, the connecting hole is connected to the oil storage cavity.

[0007] Preferably, the number of the connecting holes is three sets, and they are evenly distributed along the circumference of the end face of the inner annular groove.

[0008] Preferably, the oil inlet groove is connected to the oil storage chamber.

[0009] Preferably, the two end faces of the star-shaped sleeve body are provided with weight-reducing ring grooves.

[0010] Preferably, the number of weight-reducing ring grooves is three sets, which are evenly distributed along the circumference of the end face of the star-shaped sleeve body.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the inner annular groove and the connecting hole on the inner annular groove wall are connected to the internal annular oil storage cavity, which allows the lubricating oil in the oil storage cavity to flow evenly to the contact part between the shaft hole and the shaft. The oil guide groove on the side wall of the steel ball cavity is connected to the oil storage cavity, which provides lubrication for the rolling of the steel ball, reduces rolling resistance, and thus plays a good lubrication role, reduces friction and wear, and extends the service life of the equipment.

[0013] 2. In this utility model, by opening three sets of weight-reducing annular grooves evenly distributed along the circumference of the end face on both ends of the star-shaped sleeve body, the overall weight of the star-shaped sleeve can be reduced, which is conducive to reducing the energy consumption of the equipment and improving the operating efficiency of the equipment. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a star-shaped sleeve with an annular groove is provided for this utility model;

[0015] Figure 2 A top sectional view of a star-shaped sleeve with an annular groove is provided for this utility model;

[0016] Figure 3 A side sectional view of a star-shaped sleeve with an annular groove is provided for this utility model;

[0017] Figure 4 A top view of a star-shaped sleeve with an annular groove is provided for this utility model.

[0018] Legend: 1. Star-shaped sleeve body; 2. Shaft hole; 3. Steel ball cavity; 4. Inner ring groove; 5. Oil injection hole; 6. Oil storage cavity; 7. Dust plug; 8. Connecting hole; 9. Oil inlet groove; 10. Weight reduction ring groove. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: a star-shaped sleeve with annular groove, including a star-shaped sleeve body 1, a shaft hole 2 in the middle of the star-shaped sleeve body 1, a uniformly distributed steel ball cavity 3 on the outer end face of the star-shaped sleeve body 1, an inner annular groove 4 on the wall of the shaft hole 2, an oil injection hole 5 on the surface of the star-shaped sleeve body 1, an annular oil storage cavity 6 inside the star-shaped sleeve body 1, a dust plug 7 inserted into the oil injection hole 5, a connecting hole 8 on the wall of the inner annular groove 4, an oil guide groove 9 on the side wall of the steel ball cavity 3, the connecting hole 8 communicating with the oil storage cavity 6, the number of connecting holes 8 is three sets, and they are evenly distributed along the circumference of the end face of the inner annular groove 4, the oil guide groove 9 communicating with the oil storage cavity 6.

[0022] In this embodiment, the inner annular groove 4 and the connecting hole 8 on the wall of the shaft hole 2 are connected to the inner annular oil storage cavity 6, which allows the lubricating oil in the oil storage cavity 6 to flow evenly to the contact part between the shaft hole 2 and the shaft. The oil channel 9 on the side wall of the steel ball cavity 3 is connected to the oil storage cavity 6, providing lubrication for the rolling of the steel ball, reducing rolling resistance, thereby achieving good lubrication, reducing friction and wear, and extending the service life of the equipment.

[0023] Example 2: As Figures 1-4 As shown, the star-shaped sleeve body 1 has weight-reducing ring grooves 10 on both ends. There are three sets of weight-reducing ring grooves 10, which are evenly distributed along the circumference of the end face of the star-shaped sleeve body 1.

[0024] In this embodiment, by opening three sets of weight-reducing annular grooves 10 evenly distributed along the circumference of the end faces of the star-shaped sleeve body 1, the overall weight of the star-shaped sleeve can be reduced, which is beneficial to reducing the energy consumption of the equipment and improving the operating efficiency of the equipment.

[0025] The working principle of this embodiment is as follows: When the equipment is running, if it is necessary to add lubricating oil, pull out the dust plug 7 in the oil injection hole 5, inject the lubricating oil into the oil storage chamber 6, and then insert the dust plug 7 again. The lubricating oil in the oil storage chamber 6 flows evenly to the contact part between the shaft hole 2 and the shaft through the connecting hole 8 connected to the oil storage chamber 6, which plays a lubricating role and reduces the friction between the shaft and the shaft hole 2. At the same time, the lubricating oil in the oil storage chamber 6 will also flow to the steel ball cavity 3 through the oil guide groove 9 connected to the oil storage chamber 6, which provides lubrication for the rolling of the steel ball and reduces the resistance when the steel ball rolls. During the entire operation of the equipment, the weight reduction ring grooves 10 on both ends of the star-shaped sleeve body 1 reduce the overall weight of the star-shaped sleeve, thereby reducing the energy consumption of the equipment operation and helping the equipment to operate more efficiently.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A ring-groove star bushing comprising a star bushing body (1), characterized in that: The middle part of the star-shaped sleeve body (1) is provided with an axle hole (2), the outer end surface of the star-shaped sleeve body (1) is provided with uniformly distributed steel ball cavities (3), the wall surface of the axle hole (2) is provided with an inner ring groove (4), the surface of the star-shaped sleeve body (1) is provided with an oil injection hole (5), the inside of the star-shaped sleeve body (1) is provided with an annular oil storage cavity (6), the inside of the oil injection hole (5) is inserted with a dustproof plug (7), the wall surface of the inner ring groove (4) is provided with a communication hole (8), and the side wall of the steel ball cavity (3) is provided with an oil guiding groove (9).

2. The ring grooved star bushing of claim 1, wherein: The communication hole (8) is communicated with the oil storage cavity (6).

3. The ring grooved star bushing of claim 1, wherein: The number of the communication holes (8) is three groups, and they are uniformly distributed along the end surface circumference of the inner ring groove (4).

4. The ring grooved starbush according to claim 1, characterized in that: The oil guiding groove (9) is communicated with the oil storage cavity (6).

5. The ring grooved starbush according to claim 1, characterized in that: The two end surfaces of the star-shaped sleeve body (1) are provided with weight reduction ring grooves (10).

6. The ring grooved star bushing of claim 5, wherein: The number of the weight reduction ring grooves (10) is three groups, and they are uniformly distributed along the end surface circumference of the star-shaped sleeve body (1).

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