Self-lubricating shaft sleeve

Abstract

The utility model discloses a self-lubricating shaft sleeve which comprises a shaft sleeve body, and a plurality of holes are formed in the shaft sleeve body. The sliding shaft is arranged in the shaft sleeve body in a sliding manner; the friction balls are movably arranged in the holes, and a plurality of hollow areas used for increasing friction force between the sliding shaft and the friction balls are arranged on the friction balls. The hole is formed in the shaft sleeve body, and the friction ball and the lubricating piece are arranged in the hole, so that the self-lubricating function is achieved. In the moving process of the sliding shaft, a proper amount of lubricating grease can be automatically released according to actual needs, the timeliness and effectiveness of lubrication are ensured, the problems caused by insufficient or excessive lubrication are reduced, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeves, in particular to a self-lubricating shaft sleeve. Background Art

[0002] In mechanical engineering, bushings are one of the key components used to reduce friction between rotating or reciprocating parts. Traditional bushing designs rely on external lubrication systems, such as oil pumps and grease guns, to provide the necessary lubrication to reduce wear and ensure smooth operation. However, this reliance on external lubrication has some inherent problems: first, it increases system complexity because additional equipment is required to maintain lubrication; second, continuous lubrication may lead to excessive use of lubricant, resulting in resource waste and increased costs. Utility Model Content

[0003] The utility model aims at the deficiencies in the prior art and provides a self-lubricating shaft sleeve.

[0004] In order to solve the above technical problems, the present invention solves them through the following technical solutions: a self-lubricating sleeve includes a sleeve body, which is provided with a plurality of holes; a sliding shaft, which is slidably arranged in the sleeve body; and friction beads, which are movably arranged in the holes, and the friction beads are provided with a plurality of hollow areas for increasing the friction between the sliding shaft and the friction beads.

[0005] In the above solution, preferably, the hole is provided with a lubricating part for placing the lubricating part, the lubricating part includes lubricating paste and a tube body for placing the lubricating paste, and one end of the friction bead is embedded in the lubricating paste.

[0006] In the above solution, preferably, the tube body is detachably connected in the hole.

[0007] In the above solution, preferably, an elastic member is provided at the end of the tube body, and the elastic member is abutted against the friction bead.

[0008] In the above solution, preferably, the hole diameter is set smaller than the friction bead diameter.

[0009] In the above solution, preferably, the edge of the hollow area contacts the sliding shaft to increase friction.

[0010] In the above solution, preferably, the hollow area is a groove.

[0011] In the above solution, preferably, the elastic member includes a spring and a contact rod, the contact rod slides in the tube body, and the tube body is connected to the contact rod via the spring.

[0012] The beneficial effect of this utility model is that, by providing holes in the sleeve body and internally incorporating friction beads and lubricating elements, a self-lubricating function is achieved. During the movement of the sliding shaft, the appropriate amount of lubricating paste can be automatically released according to actual needs, ensuring timely and effective lubrication, reducing problems caused by insufficient or excessive lubrication, and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the shaft body and sliding shaft of the utility model.

[0014] Figure 2 It is a top view of the utility model.

[0015] Figure 3 for Figure 2 AA section view.

[0016] Figure 4 for Figure 3 Enlarged view of point B.

[0017] Figure 5 This is a schematic diagram of the friction beads of the utility model having several hollow areas. DETAILED DESCRIPTION

[0018] The present invention is described in further detail below with reference to the accompanying drawings and specific embodiments: Figures 1-5 A self-lubricating sleeve comprises a sleeve body 1, wherein the sleeve body 1 is provided with a plurality of holes 2, wherein the holes 2 are used for placing lubricating parts, and movable friction beads 4 are provided in the holes 2, wherein the friction beads 4 can lubricate the sleeve.

[0019] Specifically, a plurality of holes 2 are provided on the sleeve, the holes 2 pass through the sleeve, and the friction beads 4 are provided in the holes 2. The friction beads 4 move at the heads of the holes 2 and partially protrude from the inner surface of the sleeve body 1, that is, the diameter of the holes 2 is smaller than that of the friction beads 4 to prevent them from escaping therefrom.

[0020] In production practice, the lubrication requirements of the sliding shaft 3 sliding in the shaft body are different. In high-precision equipment, the sliding shaft 3 needs to be lubricated when it reaches 80% of the preset value, but some equipment only needs lubrication when it reaches 50% of the preset value. Continuous oil supply is a large cost burden.

[0021] Therefore, the friction beads 4 are provided with a plurality of hollow areas 5 for changing the friction force, and the hollow areas 5 are grooves. The more grooves there are, the greater the friction between the friction beads 4 and the sliding shaft 3 will be. Therefore, when the friction between the sliding shaft 3 and the friction beads 4 is small enough, the sliding shaft 3 will only press the friction beads 4 down and will not drive them to rotate, so the sliding shaft 3 is not continuously supplied with oil.

[0022] At the same time, a lubricating part is provided in the hole 2, and the lubricating part includes a tube body 7. The front end of the tube body 7 includes a cavity for placing the lubricating paste 6. At the same time, a thread is provided on the outside of the tube body 7. The thread can be rotatably connected to the hole 2 to facilitate its disassembly and assembly. At the same time, one end of the friction bead 4 is embedded in the lubricating paste 6.

[0023] At the same time, a channel is provided at the bottom of the tube body 7, and an elastic part is provided at the bottom of the tube body 7 in the channel. The elastic part includes a contact rod 9 and a spring 8. The contact rod 9 is slidably arranged in the tube body 7. At the same time, a spring 8 is provided in the channel and connected to one end of the contact rod 9. The other end of the contact rod 9 is against the friction bead 4.

[0024] When the friction between the sliding shaft 3 and the sleeve body 1 becomes larger, the sliding shaft 3 drives the friction beads 4 in the sleeve body 1. Therefore, after the friction beads 4 rotate, the friction beads 4 on the other side covered with lubricating paste 6 are brought out, thereby achieving lubrication.

[0025] When different numbers of grooves are used for equipment with different precisions and different lubrication levels are required for equipment, only when the friction between the friction beads 4 and the sliding shaft 3 is greater than the required threshold value, the friction beads 4 rotate to lubricate the sliding shaft 3 to achieve cost savings.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A self-lubricating sleeve, characterized in that: include A shaft sleeve body (1), wherein the shaft sleeve body (1) is provided with a plurality of holes (2); A sliding shaft (3) is slidably arranged in the sleeve body (1); as well as A friction bead (4) is movably arranged in the hole (2), and a plurality of hollow areas (5) are provided on the friction bead (4) for increasing the friction force between the sliding shaft (3) and the friction bead (4).

2. The self-lubricating sleeve according to claim 1, characterized in that: The hole (2) is provided with a lubricating part for placing, and the lubricating part includes lubricating paste (6) and a tube body (7) for placing the lubricating paste (6), and one end of the friction bead (4) is embedded in the lubricating paste (6).

3. The self-lubricating sleeve according to claim 1, characterized in that: The tube body (7) is detachably connected in the hole (2).

4. The self-lubricating sleeve according to claim 1, characterized in that: An elastic member is provided at the end of the tube body (7), and the elastic member is disposed against the friction bead (4).

5. The self-lubricating sleeve according to claim 1, characterized in that: The diameter of the hole (2) is set to be smaller than the diameter of the friction bead (4).

6. The self-lubricating sleeve according to claim 1, characterized in that: The edge of the hollow area (5) contacts the sliding shaft (3) to increase friction.

7. The self-lubricating sleeve according to claim 1, characterized in that: The hollow area (5) is a groove.

8. The self-lubricating sleeve according to claim 1, characterized in that: The elastic member comprises a spring (8) and a contact rod (9); the contact rod (9) slides in the tube (7); and the tube (7) is connected to the contact rod (9) via the spring (8).

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