Self-lubricating bearing

Abstract

The utility model relates to bearing technical field especially is a kind of self-lubricating bearing, including outer ring, the outer ring is ring body structure, the inside center of outer ring is equipped with inner ring, the outer wall of outer ring and inner ring is slidably connected with ball, several ball is about the center annular distribution of inner ring, the outer wall of several ball is equipped with retainer uniformly.This device can be through the inner wall of retainer densely solid lubricant, in the rotating friction process of ball and retainer, solid lubricant is melted and forms lubricating film on the surface of ball due to heat, can be in the stability of bearing structure, also can keep simple structure, without affecting the structural strength of bearing inner and outer ring, can realize the self-lubrication of ball, solid lubricant lubricating bearing can save maintenance cost, can adapt to more complex and not adapt to the working environment of using traditional bearing, can guarantee basic function while saving overall space.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to a self-lubricating bearing. Background Technology

[0002] Self-lubricating bearings are bearings that achieve lubrication without the need for external lubricants during operation. These bearings ensure good lubrication during long-term operation by embedding lubricants within the material or using self-lubricating materials, thereby reducing friction, wear, and maintenance costs. Self-lubricating bearings are widely used in various industrial and mechanical fields, and are particularly suitable for environments where frequent lubrication is difficult.

[0003] In the process of realizing this utility model, the inventors discovered the following problems with the existing technology: existing bearings often require manual lubrication, which is troublesome, has a mediocre lubrication effect, high manual lubrication cost, and poor oil quantity control. Utility Model Content

[0004] The purpose of this invention is to provide a self-lubricating bearing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-lubricating bearing, comprising an outer ring, the outer ring being a ring structure, an inner ring being provided at the inner center of the outer ring, and balls being slidably connected to the outer walls of both the outer ring and the inner ring, a plurality of balls being distributed in a ring about the center of the inner ring, and a retainer being fitted on the outer wall of each plurality of balls;

[0006] The retainer includes roller sleeves, and multiple roller sleeves are fixedly connected by connectors. A roller through groove is provided inside the roller sleeve, and a number of lubricant grooves are distributed circumferentially along the axis of the roller sleeve on the inner wall of the roller through groove.

[0007] The beneficial effects of this utility model are as follows: with the combination of roller sleeve, connecting part, roller through groove and lubricant groove, the self-lubricating operation of the roller can be realized. Under the premise of stable bearing structure, there is no need to add an additional structure to realize the lubrication of the bearing. The heat generated by the friction between solid lubricant and roller melts the lubricant to lubricate the roller.

[0008] To ensure proper rotation of the rollers:

[0009] The outer ring is further configured such that: the outer ring includes an outer ring body, and a first ring groove is formed in the middle of the inner wall of the outer ring body, and a ball is slidably connected to the inner wall of the first ring groove; and the inner ring includes an inner ring body, and a second ring groove is formed in the middle of the outer wall of the inner ring body, and a ball is slidably connected to the inner wall of the second ring groove.

[0010] By adopting the above technical solution, the roller can achieve a good rotation effect.

[0011] To achieve the basic functions of a bearing:

[0012] The configuration is further defined as follows: the first annular groove, the ball, and the second annular groove constitute a transmission structure.

[0013] By adopting the above technical solutions, the basic functions of the bearing can be achieved and the wear of the balls can be reduced.

[0014] To achieve self-lubrication of the balls:

[0015] The lubricant is further configured such that: the interior of the lubricant tank is provided with a solid lubricant, and the outer wall of the lubricant tank is in contact with the ball bearing; the solid lubricant is a metal-based solid lubricant.

[0016] By adopting the above technical solution, self-lubrication of the balls can be achieved, ensuring good working performance.

[0017] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main body of the present utility model;

[0019] Figure 2 This is a cross-sectional view of the main body of this utility model;

[0020] Figure 3 This is a schematic diagram of the roller frame of this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the roller frame of this utility model.

[0022] In the figure: 1. Outer ring; 101. Outer ring body; 102. First ring groove; 2. Inner ring; 201. Inner ring body; 202. Second ring groove; 3. Ball; 4. Cage; 401. Roller sleeve; 402. Connector; 403. Roller through groove; 404. Lubricant groove. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0024] Please see Figures 1 to 4A self-lubricating bearing includes an outer ring 1, which is a ring structure. An inner ring 2 is provided at the center of the outer ring 1. Balls 3 are slidably connected to the outer walls of the outer ring 1 and the inner ring 2. A plurality of balls 3 are distributed in a ring about the center of the inner ring 2. A cage 4 is fitted on the outer wall of the plurality of balls 3.

[0025] The retainer 4 includes a roller sleeve 401. Multiple roller sleeves 401 are fixedly connected by a connector 402. A roller through groove 403 is provided inside the roller sleeve 401. Several lubricant grooves 404 are distributed in a ring along the axis of the roller sleeve 401 on the inner wall of the roller through groove 403.

[0026] In this embodiment, as Figure 2 As shown, the outer ring 1 includes an outer ring body 101, and a first ring groove 102 is formed in the middle of the inner wall of the outer ring body 101. A ball bearing 3 is slidably connected to the inner wall of the first ring groove 102. The inner ring 2 includes an inner ring body 201, and a second ring groove 202 is formed in the middle of the outer wall of the inner ring body 201. A ball bearing 3 is slidably connected to the inner wall of the second ring groove 202.

[0027] In this embodiment, as Figure 1 and Figure 2 As shown, the first annular groove 102, the ball 3, and the second annular groove 202 constitute the transmission structure.

[0028] In this embodiment, as Figure 3 and Figure 4 As shown, the lubricant tank 404 contains a solid lubricant, and the outer wall of the lubricant tank 404 is in contact with the ball 3. The solid lubricant is a metal-based solid lubricant.

[0029] The working process of this self-lubricating bearing is as follows:

[0030] First, solid lubricant is injected into the annularly distributed lubricant grooves 404 inside the roller sleeve 401. The solid lubricant uses copper powder or iron powder as the matrix and is mixed with 10% graphite and molybdenum disulfide to ensure good lubrication effect. The lubricant grooves 404 overlap with the balls 3. During the rotation of the balls 3, friction with the solid lubricant generates heat, causing the solid lubricant to form a lubricating film on the surface of the balls 3. The balls 3 rotate within the first annular groove 102 of the outer ring body 101 and the second annular groove 202 of the inner ring body 201, realizing the basic function of the bearing.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A self-lubricating bearing, comprising an outer ring (1), characterized in that: The outer ring (1) is a ring structure. The inner ring (2) is provided at the center of the outer ring (1). The outer ring (1) and the outer wall of the inner ring (2) are slidably connected with ball bearings (3). A plurality of ball bearings (3) are distributed in a ring about the center of the inner ring (2). A retainer (4) is provided on the outer wall of the plurality of ball bearings (3). The retainer (4) includes a roller sleeve (401), and multiple roller sleeves (401) are fixedly connected by a connector (402). The inside of the roller sleeve (401) is provided with a roller through groove (403), and the inner wall of the roller through groove (403) is provided with a number of lubricant grooves (404) distributed in a ring along the axis of the roller sleeve (401).

2. The self-lubricating bearing as described in claim 1, characterized in that: The outer ring (1) includes an outer ring body (101), and a first ring groove (102) is provided in the middle of the inner wall of the outer ring body (101). A ball (3) is slidably connected to the inner wall of the first ring groove (102). The inner ring (2) includes an inner ring body (201), and a second ring groove (202) is provided in the middle of the outer wall of the inner ring body (201). A ball (3) is slidably connected to the inner wall of the second ring groove (202).

3. A self-lubricating bearing as described in claim 2, characterized in that: The first annular groove (102), the ball (3), and the second annular groove (202) constitute a transmission structure.

4. A self-lubricating bearing as described in claim 1, characterized in that: The lubricant tank (404) is filled with solid lubricant, and the outer wall of the lubricant tank (404) is in contact with the ball (3). The solid lubricant is a metal-based solid lubricant.

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