Self-lubricating guide sleeve

Abstract

The utility model discloses a self-lubricating guide sleeve which comprises a guide sleeve body, an injection assembly convenient for injecting lubricating oil into the self-lubricating guide sleeve is installed on the upper surface of the guide sleeve body, and a lubricating assembly used for controlling the seepage amount of the lubricating oil is installed on the inner wall of the guide sleeve body. A heat dissipation assembly used for improving the heat dissipation efficiency of the self-lubricating guide sleeve is installed on the outer surface of the guide sleeve body. By installing the lubricating assembly which comprises the oil outlet hole, the oil control valve, the connecting rod, the friction head, the reset spring and the spring fixing base, control over the seepage amount of lubricating oil can be achieved, and the problem that waste is caused by too much seepage of the lubricating oil or the lubricating requirement cannot be met due to too little seepage of the lubricating oil is solved; lubricating oil can be effectively prevented from permeating out from the oil outlet hole or the injection port in a normal state, the sealing performance of the lubricating oil is ensured, and therefore waste of the lubricating oil and environmental pollution caused by seepage are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of guide bush, specifically to a self -lubricating guide bush. BACKGROUND

[0002] In the mechanical motion system, guide bush plays a very key role, it can provide accurate guide for the moving parts, reduce friction and wear, thereby improve the operation efficiency and service life of equipment. The existing self -lubricating guide bush internal lubricating oil's exuding amount is difficult to control accurately, can appear exuding too much and lead to lubricating oil waste and pollution surrounding environment, or exuding too little cannot satisfy the lubrication demand, thereby influence guide bush and moving parts's normal work and service life. UTILITY MODEL CONTENTS

[0003] The utility model discloses a self -lubricating guide bush possesses the advantage of reducing lubricating oil waste due to exuding too much, or exuding too little cannot satisfy the lubrication demand condition, to solve the problem raised in the above -mentioned background art.

[0004] In order to realize the above -mentioned purpose, the utility model provides the following technical scheme: a self -lubricating guide bush, including guide bush body, the upper surface of guide bush body is installed with the injection assembly that is convenient for injecting lubricating oil for self -lubricating guide bush, the inner wall of guide bush body is installed with the lubricating assembly for controlling lubricating oil exuding amount, the outer surface of guide bush body is installed with the heat dissipation assembly for improving the heat dissipation efficiency of self -lubricating guide bush.

[0005] The injection assembly includes injection port, the injection port is set up in the upper surface of guide bush body, the surface of injection port is installed with plug cover, the surface junction of plug cover and injection port is installed with first sealing ring, the upper surface of plug cover is installed with fixed ring.

[0006] One end of injection port is communicated with first injection pipeline, the end away from injection port of first injection pipeline is communicated with injection annulus, the lower surface of injection annulus is communicated with second injection pipeline, the end away from injection annulus of second injection pipeline is communicated with oil storage cavity.

[0007] The lubricating assembly includes oil outlet hole, the oil outlet hole is set up in the inner wall of guide bush body, the surface of oil outlet hole is installed with oil control valve, the surface junction of oil control valve and oil outlet hole is installed with second sealing ring.

[0008] One side of oil control valve is installed with connecting rod, one end of connecting rod is installed with friction head, the other end of connecting rod penetrates oil control valve and extends to the inside of oil storage cavity.

[0009] The other end of the connecting rod is provided with a reset spring, and the far end of the reset spring is provided with a spring fixing base, and the surface of the spring fixing base is connected with the inner wall of the oil storage cavity.

[0010] The heat dissipation assembly comprises a heat dissipation groove, which is arranged on the outer surface of the guide sleeve body, and the inner wall of the heat dissipation groove is provided with a heat dissipation fin, and the surface of the heat dissipation fin is provided with a heat dissipation fin.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、The utility model discloses a lubricating assembly which comprises an oil outlet hole, an oil control valve, a connecting rod, a friction head, a reset spring and a spring fixing base, and can control the amount of lubricating oil seepage, thereby avoiding the problems of waste caused by too much lubricating oil seepage and insufficient lubrication caused by too little lubricating oil seepage.

[0013] 2、The utility model discloses a first sealing ring and a second sealing ring are arranged, which can effectively prevent lubricating oil from seeping out from the oil outlet hole or the injection port under normal conditions, ensure the sealing property of the lubricating oil, and avoid waste of lubricating oil and environmental pollution. DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a structural diagram of the injection assembly;

[0016] Figure 3 It is a sectional view of the injection port structure;

[0017] Figure 4 It is a structural diagram of the lubricating assembly;

[0018] Figure 5 It is a structural diagram of the heat dissipation assembly.

[0019] In the drawing: 1, guide sleeve body; 2, injection port; 3, plug cover; 4, first sealing ring; 5, fixing ring; 6, first injection pipeline; 7, injection ring channel; 8, second injection pipeline; 9, oil storage cavity; 10, oil outlet hole; 11, oil control valve; 12, second sealing ring; 13, connecting rod; 14, friction head; 15, reset spring; 16, spring fixing base; 17, heat dissipation groove; 18, heat dissipation fin; 19, heat dissipation fin. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] Please refer to Figures 1-5 The self-lubricating guide sleeve comprises a guide sleeve body 1, an injection assembly for injecting lubricating oil into the self-lubricating guide sleeve is arranged on the upper surface of the guide sleeve body 1, a lubricating assembly for controlling the amount of lubricating oil seepage is arranged on the inner wall of the guide sleeve body 1, and a heat dissipation assembly for improving the heat dissipation efficiency of the self-lubricating guide sleeve is arranged on the outer surface of the guide sleeve body 1.

[0022] The injection assembly comprises an injection port 2, the injection port 2 is arranged on the upper surface of the guide sleeve body 1, a plug cover 3 is arranged on the surface of the injection port 2, the surface of the plug cover 3 is threadedly connected with the inner wall of the injection port 2, a first sealing ring 4 is arranged at the connecting position between the surface of the plug cover 3 and the injection port 2, and a fixing ring 5 is arranged on the upper surface of the plug cover 3. The injection port 2 is arranged on the upper surface of the guide sleeve body 1, and the injection port 2 can be used to conveniently add lubricating oil, so that the lubricating oil in the oil storage cavity 9 is sufficient. The plug cover 3 and the first sealing ring 4 can be used to effectively prevent the lubricating oil from overflowing from the injection port 2 when it is not needed, so that the surface of the guide sleeve body 1 is kept clean and the lubricating oil is fully utilized. The fixing ring 5 is used as a key point for opening the plug cover 3, and the plug cover 3 can be rotated by manually or using a tool to rotate the fixing ring 5, so that the plug cover 3 is rotated, the plug cover 3 is opened, and the lubricating oil is injected.

[0023] One end of the injection port 2 is communicated with a first injection pipeline 6, the end of the first injection pipeline 6 away from the injection port 2 is communicated with an injection ring channel 7, the lower surface of the injection ring channel 7 is communicated with a second injection pipeline 8, and the end of the second injection pipeline 8 away from the injection ring channel 7 is communicated with an oil storage cavity 9. The four oil storage cavities 9 are evenly distributed in the interior of the guide sleeve body 1 in a ring shape, and are communicated with the injection ring channel 7 by four second injection pipelines 8, so that the lubricating oil can be uniformly penetrated, and the local wear of the moving parts and the inner wall of the guide sleeve caused by uneven lubrication is reduced. When the lubricating oil needs to be injected, the lubricating oil flows into the injection ring channel 7 through the injection port 2 and the first injection pipeline 6, and the lubricating oil in the injection ring channel 7 flows into the interiors of the four oil storage cavities 9 through the four second injection pipelines 8.

[0024] The lubricating assembly comprises an oil outlet hole 10 formed in the inner wall of the guide sleeve body 1, the surface of the oil outlet hole 10 is provided with an oil control valve 11, and the connection position between the oil control valve 11 and the surface of the oil outlet hole 10 is provided with a second sealing ring 12. The oil outlet hole 10 is a channel for the lubricating oil to flow from the oil storage cavity 9 to the contact surface between the inner wall of the guide sleeve body 1 and the moving part, and the position of the oil outlet hole 10 can accurately guide the lubricating oil to the contact area between the guide sleeve and the moving part, thereby providing effective lubrication; the amount of lubricating oil seepage is adjusted by the opening degree of the oil control valve 11, and the cooperation of the oil control valve 11 and the second sealing ring 12 can effectively prevent the lubricating oil from leaking through the oil outlet hole 10 when the equipment is not working, thereby ensuring the sealing of the lubricating oil and avoiding the waste of the lubricating oil and environmental pollution.

[0025] The oil control valve 11 is provided with a connecting rod 13 on one side, one end of the connecting rod 13 is provided with a friction head 14, and the other end of the connecting rod 13 penetrates the oil control valve 11 and extends into the inside of the oil storage cavity 9. The friction head 14 is in contact with the moving part to generate a friction force, and the friction force is transmitted to the oil control valve 11 through the connecting rod 13, so that the opening degree of the oil control valve 11 can be automatically adjusted according to the change of the friction force, thereby accurately controlling the seepage amount of the lubricating oil and avoiding the waste of the lubricating oil.

[0026] The other end of the connecting rod 13 is provided with a reset spring 15, one end of the reset spring 15 away from the connecting rod 13 is provided with a spring fixing seat 16, and the surface of the spring fixing seat 16 is connected with the inner wall of the oil storage cavity 9. The connecting rod 13 serves as a medium for transmitting the friction force, one end of the connecting rod 13 is connected with the friction head 14, and the other end of the connecting rod 13 is connected with the reset spring 15; the reset spring 15 is arranged to ensure that the oil control valve 11 can be automatically closed when not subjected to external force, thereby effectively preventing the excessive seepage of the lubricating oil and improving the utilization rate of the lubricating oil; the spring fixing seat 16 is used for fixing one end of the reset spring 15, so as to ensure that the reset spring 15 can be stably arranged in the inside of the oil storage cavity 9 and provide stable support for the reset spring 15.

[0027] In the working condition, the moving part moves in the inside of the guide sleeve body 1 and directly contacts with the friction head 14, which can generate a certain friction force, and the friction force is related to the normal pressure between the moving part and the friction head 14 and the friction coefficient; when the friction coefficient is constant, the greater the normal pressure between the moving part and the friction head 14, the greater the friction force, and vice versa; when the normal pressure is greater than the sum of the elastic force of the reset spring 15 and the friction force between the oil control valve 11 and the oil outlet hole 10, the part of the normal pressure will squeeze the reset spring 15 through the connecting rod 13 and make the oil control valve 11 move to the inside of the oil storage cavity 9, so that the lubricating oil in the oil storage cavity 9 penetrates to the surface of the moving part through the oil outlet hole 10, realizing the lubrication effect; when the friction force between the moving part and the friction head 14 becomes smaller, the elastic force of the reset spring 15 will drive the oil control valve 11 to move to the surface of the oil outlet hole 10 through the connecting rod 13, so as to accurately control the penetration amount of the lubricating oil, avoiding the waste of the lubricating oil.

[0028] The heat dissipation assembly comprises a heat dissipation groove 17, which is opened on the outer surface of the guide sleeve body 1, the inner wall of the heat dissipation groove 17 is provided with a heat dissipation fin 18, and the surface of the heat dissipation fin 18 is provided with a heat dissipation fin 19. Through the cooperation of the heat dissipation groove 17 and the heat dissipation fin 18, in the working condition, when the guide sleeve body 1 is caused to have a too high temperature due to rapid movement and friction, the heat dissipation fin 18 can absorb and transfer the high temperature to the heat dissipation fin 19, and the heat dissipation fin 19 can further improve the heat dissipation efficiency, ensuring the stability of the self-lubricating guide sleeve in the high-load operation.

Claims

1. A self-lubricating bushing comprising a bushing body (1), characterized in that: The upper surface of the guide bush body (1) is provided with an injection assembly for injecting lubricating oil into the self-lubricating guide bush, the inner wall of the guide bush body (1) is provided with a lubricating assembly for controlling the amount of lubricating oil seepage, and the outer surface of the guide bush body (1) is provided with a heat dissipation assembly for improving the heat dissipation efficiency of the self-lubricating guide bush; The injection assembly comprises an injection port (2) formed in the upper surface of the guide bush body (1); The surface of the injection port (2) is provided with a plug cover (3), the surface connection part of the plug cover (3) and the injection port (2) is provided with a first sealing ring (4), and the upper surface of the plug cover (3) is provided with a fixing ring (5); The lubricating assembly comprises an oil outlet hole (10) formed in the inner wall of the guide bush body (1), and the surface of the oil outlet hole (10) is provided with an oil control valve (11); The heat dissipation assembly comprises a heat dissipation groove (17) formed in the outer surface of the guide bush body (1), and the inner wall of the heat dissipation groove (17) is provided with a heat dissipation fin (18).

2. A self-lubricating bushing according to claim 1, characterized in that: One end of the injection port (2) is communicated with a first injection pipeline (6), the end of the first injection pipeline (6) away from the injection port (2) is communicated with an injection ring channel (7), the lower surface of the injection ring channel (7) is communicated with a second injection pipeline (8), and the end of the second injection pipeline (8) away from the injection ring channel (7) is communicated with an oil storage cavity (9).

3. A self-lubricating bushing according to claim 2, characterized in that: The surface connection part of the oil control valve (11) and the oil outlet hole (10) is provided with a second sealing ring (12).

4. A self-lubricating bushing according to claim 3, wherein: One side of the oil control valve (11) is provided with a connecting rod (13), one end of the connecting rod (13) is provided with a friction head (14), and the other end of the connecting rod (13) penetrates the oil control valve (11) and extends into the inside of the oil storage cavity (9).

5. A self-lubricating bushing according to claim 4, wherein: The other end of the connecting rod (13) is provided with a return spring (15), one end of the return spring (15) away from the connecting rod (13) is provided with a spring fixing seat (16), and the surface of the spring fixing seat (16) is connected with the inner wall of the oil storage cavity (9).

6. A self-lubricating bushing according to claim 5, wherein: The surface of the heat dissipation fin (18) is provided with a heat dissipation fin (19).

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