High-lubricity sliding shaft sleeve

Abstract

The utility model discloses a high-lubricity sliding shaft sleeve which comprises a shaft sleeve outer sleeve, a shaft sleeve inner sleeve is arranged in the shaft sleeve outer sleeve in a sleeved mode, sealing assemblies are arranged in the shaft sleeve outer sleeve and located at the two ends of the shaft sleeve outer sleeve, and an oil storage assembly is arranged on the outer side of the shaft sleeve outer sleeve. The oil storage assembly comprises an oil storage barrel fixedly installed on the outer surface of the shaft sleeve outer sleeve, an oil inlet groove is formed in the inner wall of the shaft sleeve outer sleeve, the oil inlet groove is spirally distributed in the inner wall of the shaft sleeve outer sleeve, and one end of the oil inlet groove penetrates through the outer surface of the shaft sleeve outer sleeve to be communicated with the oil storage barrel.

Description

Technical Field

[0001] This utility model relates to the field of sliding bushing technology, specifically a highly lubricated sliding bushing. Background Technology

[0002] A bushing is a cylindrical mechanical part that fits onto a rotating shaft. It is a component of a sliding bearing and plays a role in fixing the load and reducing the coefficient of friction during mechanical transmission.

[0003] According to the patent announcement number CN215333964U, a high-lubricity sliding bushing includes a bushing outer sleeve, an end protective ring, and a mounting base. The inner side of the bushing outer sleeve is embedded with balls, the inner sleeve of the bushing outer sleeve is fitted inside the bushing outer sleeve, and the inner sleeve of the bushing is fitted inside the protective sleeve. Through holes are opened at both ends of the outer side of the bushing outer sleeve, and protective mesh is embedded inside the through holes. The through holes penetrate the inner sleeve of the bushing and the protective sleeve.

[0004] The above solution provides good lubrication performance, and the installation of multiple ball bearings ensures smoother movement and high stability, preventing loosening. Lubricating oil can be added to the inner sleeve of the bushing through the through-hole to provide internal lubrication and improve the bushing's lubrication. However, the bushing cannot store lubricating oil in advance; each time lubricating oil is added through the through-hole, the operator must bring the lubricating oil to the bushing, increasing the workload of bearing maintenance.

[0005] Therefore, a highly lubricating sliding bushing is needed to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a highly lubricated sliding bushing.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-lubricity sliding bushing, comprising a bushing outer sleeve, an inner bushing sleeve fitted inside the bushing outer sleeve, a sealing assembly disposed inside the bushing outer sleeve, the sealing assembly located at both ends of the bushing outer sleeve, an oil storage assembly disposed on the outer side of the bushing outer sleeve, the oil storage assembly comprising an oil storage tank fixedly installed on the outer surface of the bushing outer sleeve, an oil inlet groove formed on the inner wall of the bushing outer sleeve, the oil inlet groove being spirally distributed on the inner wall of the bushing outer sleeve, and one end of the oil inlet groove penetrating to the outer surface of the bushing outer sleeve and communicating with the oil storage tank.

[0008] Preferably, in the above-mentioned high-lubricity sliding bushing, the sealing assembly includes a sealing ring connected to the inner wall of the bushing outer sleeve, and a fixing block is fixedly connected to the outer surface of the sealing ring.

[0009] Preferably, in the above-mentioned high-lubricity sliding bushing, the inner wall of the fixing block is threaded with a fixing bolt, and the fixing bolt is screwed to the outer sleeve of the bushing.

[0010] Preferably, in the above-mentioned high-lubricity sliding bushing, the inner wall of the oil reservoir is slidably connected with a sealing plug.

[0011] Preferably, in the above-mentioned high-lubricity sliding bushing, the inner wall of the oil reservoir is slidably connected to a slide rod, and one end of the slide rod is fixedly connected to a sealing gasket.

[0012] Preferably, in the above-mentioned high-lubricity sliding bushing, the other end of the slide rod is fixedly connected to a sealing plate, and a pull ring is fixedly connected to the outer surface of the sealing plate.

[0013] Preferably, in the above-mentioned high-lubricity sliding bushing, the outer surface of the bushing sleeve is fixedly connected to a base, and the base has an installation hole inside, which extends through to the outer surface of the base.

[0014] The beneficial effects of this utility model are: by setting an oil storage component on the outer side of the bushing sleeve, this utility model can pre-store lubricating oil and realize the release of lubricating oil on demand, which solves the problems of not being able to store oil in advance and the inconvenience of filling in the prior art, and improves the continuity of lubrication and the convenience of operation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the internal connection structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the sealing assembly of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Outer sleeve of bushing; 2. Inner sleeve of bushing; 3. Sealing assembly; 301. Sealing ring; 302. Fixing block; 303. Fixing bolt; 4. Oil storage assembly; 401. Oil storage tank; 402. Sealing plug; 403. Sliding rod; 404. Sealing gasket; 405. Sealing plate; 406. Pull ring; 5. Base; 6. Mounting hole; 7. Oil inlet groove. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0022] like Figures 1-4As shown, a high-lubricity sliding bushing includes a bushing outer sleeve 1, an inner bushing 2 sleeved inside the bushing outer sleeve 1, and a base 5 fixedly connected to the outer surface of the bushing outer sleeve 1. The base 5 has an installation hole 6 extending through to the outer surface of the base 5. An oil inlet groove 7 is formed on the inner wall of the bushing outer sleeve 1, with one end extending through to the outer surface of the bushing outer sleeve 1 and communicating with an oil reservoir 401. The oil inlet groove 7 is spirally distributed around the inner wall of the bushing outer sleeve 1, guiding lubricating oil to be evenly distributed to the friction surface.

[0023] The bushing outer sleeve 1 has a sealing component 3 inside. The sealing component 3 includes a sealing ring 301 connected to the inner wall of the bushing outer sleeve 1. The inner bushing 2 is slidably connected to the sealing ring 301, and the sealing ring 301 is made of fluororubber. A fixing block 302 is fixedly connected to the outer surface of the sealing ring 301. The fixing block 302 is a metal frame, and a fixing bolt 303 is threadedly connected to the inner wall of the fixing block 302. The fixing bolt 303 is screwed to the bushing outer sleeve 1, and the fixing bolt 303 is used to securely connect the bushing outer sleeve 1. The preload of the sealing ring 301 can be adjusted by tightening the fixing bolt 303 to ensure sealing reliability under different working conditions, effectively preventing external dust and liquid from entering the bushing and reducing abrasive wear. The fixing bolt 303 adopts an internal hexagon countersunk head design, and the bolt head is embedded in the countersunk hole in the inner wall of the fixing block 302.

[0024] An oil storage assembly 4 is provided on the outer side of the bushing outer sleeve 1. The oil storage assembly 4 includes an oil reservoir 401 fixedly installed on the outer surface of the bushing outer sleeve 1. The oil reservoir 401 is a transparent cylindrical cavity made of polycarbonate material, which facilitates observation of the internal lubricating oil level. A sealing plug 402 is slidably connected to the inner wall of the oil reservoir 401. The bottom of the sealing plug 402 is provided with a rubber sealing ring, which can further enhance the sealing performance of the oil reservoir 401 and prevent lubricating oil from evaporating or external impurities from entering.

[0025] A sliding rod 403 is slidably connected to the inner wall of the oil storage tank 401. The sliding rod 403 is a cylindrical rod made of stainless steel, which slides in conjunction with the guide groove on the inner wall of the oil storage tank 401 to ensure that it does not shift during movement. A sealing gasket 404 is fixedly connected to one end of the sliding rod 403. The sealing gasket 404 is made of silicone and is disc-shaped. Its outer diameter fits against the inner wall of the oil storage tank 401. In the initial state, it is pressed against the oil outlet at the bottom of the oil storage tank 401 by its own elasticity, forming a seal to prevent lubricating oil from leaking out. A sealing plate 405 is fixedly connected to the other end of the sliding rod 403. The sealing plate 405 is a circular metal plate with a rubber sealing ring on the edge. When it contacts the top of the oil storage tank 401, it can prevent lubricating oil from overflowing from the gap between the sliding rod 403 and the oil storage tank 401.

[0026] A pull ring 406 is fixedly connected to the outer surface of the sealing plate 405. The pull ring 406 adopts an O-shaped metal rod structure and has anti-slip texture on the surface, which makes it easy for the operator to pull. By pulling the pull ring 406, the slide rod 403 is moved axially, causing the sealing pad 404 to disengage from the oil outlet. The lubricating oil in the oil storage tank 401 flows into the friction surface between the inner sleeve 2 of the bushing and the shaft component under the action of gravity through the oil outlet and the oil inlet groove 7, realizing the function of quantitative oil replenishment. It is convenient to operate and can avoid the waste of lubricating oil.

[0027] Working Principle: In use, the base 5 can be fixedly installed by passing the locking bolt through the mounting hole 6, thereby achieving the fixed installation of the bushing body. The inner bushing 2 is located inside the outer bushing 1 to form a sliding fit space. The shaft component passes through the central hole of the inner bushing 2 and rotates in contact with the inner wall of the inner bushing 2. The sealing ring 301 can seal the fit gap between the inner bushing 2 and the outer bushing 1, preventing impurities from entering and causing wear inside the outer bushing 1. At the same time, it can prevent gaps from forming between the inner bushing 2 and the shaft, improving its stability. Removing the sealing plug 402 allows lubricating oil to be added to the oil reservoir 401 for storage. Reinserting the sealing plug 402 seals the filling port of the oil reservoir 401, preventing dust from entering. Pulling the pull ring 406 moves the sealing plate 405 and the sliding rod 403, causing the sealing gasket 404 to disengage from the oil outlet on the inner wall of the oil reservoir 401. The lubricating oil stored in the oil reservoir 401 flows into the friction surface between the inner sleeve 2 and the shaft component through the oil outlet and the oil inlet groove 7 on the outer surface of the bushing outer sleeve 1. This achieves the function of pre-storing lubricating oil and replenishing it as needed. When the shaft component rotates, the lubricating oil forms a lubricating film on the friction surface, reducing wear and improving the lubrication continuity and reliability of the sliding bushing.

[0028] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A highly lubricated sliding bushing, comprising a bushing outer sleeve (1), characterized in that: The inner sleeve (2) is fitted inside the outer sleeve (1) of the bushing sleeve. A sealing component (3) is provided inside the outer sleeve (1). The sealing component (3) is located at both ends of the outer sleeve (1). An oil storage component (4) is provided on the outer side of the outer sleeve (1). The oil storage component (4) includes an oil storage tank (401) fixedly installed on the outer surface of the outer sleeve (1). An oil inlet groove (7) is opened on the inner wall of the outer sleeve (1). The oil inlet groove (7) is spirally distributed on the inner wall of the outer sleeve (1), and one end of the oil inlet groove (7) extends through to the outer surface of the outer sleeve (1) and communicates with the oil storage tank (401).

2. The high-lubricity sliding bushing according to claim 1, characterized in that: The sealing assembly (3) includes a sealing ring (301) connected to the inner wall of the bushing outer sleeve (1), and a fixing block (302) is fixedly connected to the outer surface of the sealing ring (301).

3. The high-lubricity sliding bushing according to claim 2, characterized in that: The inner wall of the fixing block (302) is threaded with a fixing bolt (303), and the fixing bolt (303) is screwed to the outer sleeve (1) of the bushing.

4. The high-lubricity sliding bushing according to claim 1, characterized in that: The inner wall of the oil storage tank (401) is slidably connected with a sealing plug (402).

5. A highly lubricating sliding bushing according to claim 4, characterized in that: The inner wall of the oil storage tank (401) is slidably connected to a slide rod (403), and a sealing gasket (404) is fixedly connected to one end of the slide rod (403).

6. A high-lubricity sliding bushing according to claim 5, characterized in that: The other end of the slide bar (403) is fixedly connected to a sealing plate (405), and a pull ring (406) is fixedly connected to the outer surface of the sealing plate (405).

7. A highly lubricating sliding bushing according to claim 1, characterized in that: The outer surface of the bushing sleeve (1) is fixedly connected to the base (5), and the base (5) has an installation hole (6) inside, which extends through to the outer surface of the base (5).

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