CN211117311U - Self-lubricating shock absorber - Google Patents

Abstract

The utility model discloses a self-lubricating shock absorber, including the shock absorber barrel, the bottom fixedly connected with connecting block of shock absorber barrel, the inner wall sliding connection of shock absorber barrel has first piston, and the lower fixed surface of first piston is connected with spacing post, and damping spring, damping spring's one end and the lower fixed surface of first piston have been cup jointed on the surface of spacing post. This self-lubricating bumper shock absorber, inhale the sound device through setting up the lubrication, when using, the connecting rod up-and-down motion drives the lubrication ball at the surface roll of ceramic wear strip during the shock attenuation, the lubrication ball evenly takes over the lubricating oil on the oil storage sponge out through going out the oil groove, lubricate the bumper shock absorber barrel with first piston and second piston, the effect of self-lubrication has been reached, it often adds lubricating oil to the bumper shock absorber to have solved needs, and need control the lubricating oil addition volume and cause the inconvenient problem of interpolation, thereby have self-lubrication's characteristics.

Description

A self-lubricating shock absorber

technical field

The utility model relates to the technical field of shock absorbers, in particular to a self-lubricating shock absorber.

Background technique

The shock absorber is used to suppress the shock and the impact from the road surface when the spring rebounds after shock absorption. Widely used in automobiles, in order to accelerate the attenuation of the vibration of the frame and the body to improve the ride comfort of the car.

At present, there are many types of shock absorbers on the market, such as air spring shock absorbers or plunger damping shock absorbers, but they are all prone to abnormal noise during use, and the main reason for the abnormal noise is in the shock absorber. Due to the friction and impact between the piston and the inner wall, in order to reduce the abnormal noise and service life, most of the shock absorbers are often added with lubricating oil, and the amount added needs to be strictly controlled. The shock absorption performance of the shock absorber is not enough, and the lubricating oil overflow is easy to occur, causing driving danger. If the addition is too low, the lubrication effect will not be achieved, so a self-lubricating shock absorber is needed.

Utility model content

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a self-lubricating shock absorber, which has the characteristics of automatic lubrication and efficient noise absorption.

To achieve the above object, the utility model provides the following technical solutions:

A self-lubricating shock absorber comprises a shock absorber cylinder, the bottom of the shock absorber cylinder is fixedly connected with a connecting block, the inner wall of the shock absorber cylinder is slidably connected with a first piston, and the lower surface of the first piston is fixedly connected A limit post, the surface of the limit post is sleeved with a shock-absorbing spring, one end of the shock-absorbing spring is fixedly connected with the lower surface of the first piston, and the other end of the shock-absorbing spring is inserted into the inner bottom wall of the shock absorber cylinder, The upper surface of the first piston is fixedly connected with a fixed column, the top of the fixed column is fixedly connected with a second piston, the upper surface of the second piston is fixedly connected with a connecting rod, and one end of the connecting rod extends to the surface of the shock absorber cylinder;

The surface of the connecting rod is slidably sleeved with a rubber buffer block, the inner wall of the shock absorber cylinder is threadedly connected with a sealing cover, the surface of the sealing cover is fixedly provided with a through hole, and the inner wall of the through hole is slidably connected to the surface of the connecting rod, and the sealing cover The surface is plugged with the surface of the shock absorber cylinder, and the surface of the fixed column is fixedly connected with the surface of the shock absorber cylinder with a lubricating sound-absorbing device. The surface of the shock absorber is fixedly connected, and the inner wall of the fixing ring is fixedly sleeved with the surface of the shock absorber cylinder.

Further, the surface of the fixed column is fixedly connected with functional tubes, and the four functional tubes are distributed in an annular array with the axis of the fixed column as the center;

Through the above technical solution, the four functional tubes have the characteristics of uniformly lubricating the inner wall of the shock absorber cylinder.

Further, one end of the functional tube penetrates and extends to the surface of the sound-absorbing sponge cylinder, the inner wall of the functional tube is fixedly connected with a positioning ring, a lubricating ball is arranged between the two positioning rings, and the surface of the lubricating ball is slidably connected to the inner wall of the positioning ring. , the surface of the lubricating ball is fixed with an oil outlet, and the inner wall of the oil outlet is in the shape of an arc;

Through the above technical solution, the oil outlet groove has the characteristics of facilitating the outflow of lubricating oil in the functional pipe and lubricating the inner wall of the shock absorber cylinder.

Further, the surface of the lubricating ball extends to the surface of the functional tube, the inner wall of the shock absorber cylinder is fixedly provided with wear-resistant grooves, the four wear-resistant grooves are respectively corresponding to the functional tube, and the inner wall of the wear-resistant groove is fixedly connected with ceramic wear-resistant grooves. Grinding strip, the surface of lubricating ball is slidingly connected with the surface of ceramic wear strip;

Through the above technical solutions, the ceramic wear-resistant strip has the characteristics of being smooth and wear-resistant, and prolonging the service life of the shock absorber cylinder.

Further, the inner wall of the functional tube is slidably connected with an oil storage sponge, one end of the oil storage sponge is slidably connected to the surface of the lubricating ball, the inner wall of the functional tube is fixedly provided with an oil filling hole, and one end of the oil filling hole extends to the surface of the functional tube, and the oil filling hole is provided. A sealing plug is inserted into the inner wall of the functional tube, and lubricating oil is arranged inside the functional tube;

Through the above technical solution, the oil injection hole has the characteristics of being convenient for adding lubricating oil into the functional pipe.

Further, a plurality of fixing rings are evenly distributed on the surface of the shock absorber cylinder, and the outer cylinder is fixedly connected to the surface of the fixing rings;

Through the above technical solution, the outer cylinder has the characteristics of protecting the shock absorber cylinder and further sound insulation.

Further, a sound-absorbing cavity is provided on the inner wall of the outer cylinder, the surface of the fixing ring and the surface of the shock absorber cylinder, and a sound-absorbing sponge ring is slidably connected to the inner wall of the sound-absorbing cavity;

Through the above technical solutions, the sound-absorbing sponge ring has the characteristics of secondary sound absorption for the sound transmitted from the inside of the shock absorber cylinder.

To sum up, the utility model has the following beneficial effects:

1. By setting the lubricating and sound-absorbing device, when in use, the connecting rod moves up and down for shock absorption, and drives the lubricating ball to roll on the surface of the ceramic wear-resistant strip. The shock absorber cylinder is lubricated with the first piston and the second piston to achieve the effect of automatic lubrication, which solves the problem of frequently adding lubricating oil to the shock absorber, and the need to control the amount of lubricating oil to be added. Features of automatic lubrication.

2. By setting the lubricating sound-absorbing device, the sound-absorbing sponge tube, the sound-absorbing cavity and the sound-absorbing sponge ring are used to achieve the effect of double sound absorption for the inside of the shock absorber barrel and the surface of the shock absorber barrel, so that it has the ability to efficiently absorb noise. Features.

3. A connecting column is fixedly connected to the upper surface of the first piston, and a second piston is fixedly connected to the top of the fixed column. When in use, double-pistons and shock-absorbing springs are installed to achieve a faster shock-absorbing response effect.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is an enlarged view of the structure at place A in the utility model 1;

3 is a perspective view of the structure of the shock absorber cylinder of the present invention;

FIG. 4 is a top view of the fixed column structure of the present invention.

In the figure: 1. Shock absorber cylinder; 2. Connecting block; 3. First piston; 4. Limiting column; 5. Damping spring; 6. Fixed column; 7. Second piston; 8. Connecting rod; 9. Rubber buffer block; 10. Sealing cover; 11. Sound-absorbing sponge cylinder; 12. Fixing ring; 13. Functional tube; 14. Positioning ring; 15. Lubricating ball; 16. Oil outlet; 17. Wear-resistant groove; 18. Ceramic wear strip; 19. Oil storage sponge; 20. Oil filling hole; 21. Sealing plug; 22. Outer cylinder; 23. Sound-absorbing cavity; 24. Sound-absorbing sponge ring.

Detailed ways

Example:

The present utility model will be further described in detail below in conjunction with accompanying drawings 1-4.

A self-lubricating shock absorber, as shown in FIG. 1, includes a shock absorber cylinder 1, the bottom of the shock absorber cylinder 1 is fixedly connected with a connecting block 2, and the inner wall of the shock absorber cylinder 1 is slidably connected with a first Piston 3, the lower surface of the first piston 3 is fixedly connected to the limit post 4, the surface of the limit post 4 is sleeved with a damping spring 5, and one end of the damping spring 5 is fixedly connected to the lower surface of the first piston 3, damping The other end of the spring 5 is inserted into the inner bottom wall of the shock absorber cylinder 1, the upper surface of the first piston 3 is fixedly connected with a fixed column 6, and the top of the fixed column 6 is fixedly connected with a second piston 7, the second piston 7 The upper surface of the shock absorber is fixedly connected with a connecting rod 8, and one end of the connecting rod 8 extends to the surface of the shock absorber cylinder 1;

As shown in Figure 1-2, a rubber buffer block 9 is slidably sleeved on the surface of the connecting rod 8, and a sealing cover 10 is threadedly connected to the inner wall of the shock absorber cylinder 1. The surface of the sealing cover 10 is fixedly provided with a through hole. The inner wall of the connecting rod 8 is slidably connected to the surface of the connecting rod 8, the surface of the sealing cover 10 is inserted into the surface of the shock absorber cylinder 1, the surface of the fixing column 6 is fixedly connected to the surface of the shock absorber cylinder 1 with a lubricating sound-absorbing device, lubricating The sound-absorbing device includes a sound-absorbing sponge cylinder 11 and a fixing ring 12, the inner wall of the sound-absorbing sponge cylinder 11 is fixedly connected with the surface of the fixing column 6, and the inner wall of the fixing ring 12 is fixedly sleeved with the surface of the shock absorber cylinder 1;

As shown in FIGS. 1-2 and 4 , the surface of the fixing column 6 is fixedly connected with functional tubes 13 , and the four functional tubes 13 are distributed in an annular array with the axis of the fixing column 6 as the center, and one end of the functional tubes 13 penetrates and extends To the surface of the sound-absorbing sponge cylinder 11 , the inner wall of the functional tube 13 is fixedly connected with a positioning ring 14 , and a lubricating ball 15 is arranged between the two positioning rings 14 . The surface of the 15 is fixedly provided with an oil outlet groove 16, the inner wall of the oil outlet groove 16 is in the shape of a circular arc, the surface of the lubricating ball 15 extends to the surface of the functional tube 13, and the inner wall of the shock absorber cylinder 1 is fixedly opened with a wear-resistant groove 17, four. Each wear-resistant groove 17 corresponds to the functional tube 13 respectively, the inner wall of the wear-resistant groove 17 is fixedly connected with a ceramic wear-resistant strip 18, and the surface of the lubricating ball 15 is slidably connected with the surface of the ceramic wear-resistant strip 18;

As shown in FIG. 1 , an oil storage sponge 19 is slidably connected to the inner wall of the functional tube 13 , one end of the oil storage sponge 19 is slidably connected to the surface of the lubricating ball 15 , and an oil filling hole 20 is fixedly opened on the inner wall of the functional tube 13 . One end extends to the surface of the functional tube 13, the inner wall of the oil injection hole 20 is inserted with a sealing plug 21, the interior of the functional tube 13 is provided with lubricating oil, a plurality of fixing rings 12 are evenly distributed on the surface of the shock absorber cylinder 1, and the fixing rings The surface of 12 is fixedly connected with an outer cylinder 22, the inner wall of the outer cylinder 22, the surface of the fixing ring 12 and the surface of the shock absorber cylinder 1 are provided with a sound-absorbing cavity 23, and the inner wall of the sound-absorbing cavity 23 is slidably connected with a sound-absorbing sponge ring 24;

By setting the lubricating and sound-absorbing device, when in use, the connecting rod 8 moves up and down for shock absorption, and drives the lubricating ball 15 to roll on the surface of the ceramic wear-resistant strip 18. The lubricating ball 15 passes through the oil outlet groove 16 to evenly remove the lubricating oil on the oil storage sponge 19. Out, the shock absorber cylinder 1 and the first piston 3 and the second piston 7 are lubricated to achieve the effect of automatic lubrication, which solves the need to frequently add lubricating oil to the shock absorber, and the need to control the amount of lubricating oil added. Add inconvenient issues, so as to have the characteristics of automatic lubrication;

By setting the lubricating and sound-absorbing device, the sound-absorbing sponge cylinder 11, the sound-absorbing cavity 23 and the sound-absorbing sponge ring 24 can achieve the effect of double sound absorption for the inside of the shock absorber cylinder 1 and the surface of the shock absorber cylinder 1 during use, thereby achieving high efficiency. The characteristics of adsorption noise;

The upper surface of the first piston 3 is fixedly connected with a connecting column, and the top of the fixed column 6 is fixedly connected with a second piston 7. When in use, a double piston and a damping spring 5 are set, so as to achieve a faster damping response Effect.

Working principle: When in use, the first piston 3 and the second piston 7 compress the control pair connecting rod 8 inside the shock absorber cylinder 1 and reduce The shock absorber cylinder 1 performs shock absorption. When the first piston 3 and the second piston 7 move down the compressed air for shock absorption, the lubricating ball 15 is driven to roll on the surface of the ceramic wear strip 18, and the lubricating ball 15 passes through the surface. The oil outlet groove 16 brings the lubricating oil on the oil storage sponge 19 in the functional tube 13 out to the inner wall of the shock absorber cylinder 1 to contact the first piston 3 and the second piston 7 for lubrication;

The sound-absorbing sponge cylinder 11 absorbs the sound produced by the contact between the lubricating ball 15 and the ceramic wear strip 18 and the sliding between the first piston 3, the second piston 7 and the shock absorber cylinder 1, and the shock absorber The sound generated when the shock absorber spring 5 and the first piston 3 and the second piston 7 compress air inside the cylinder 1 are transmitted to the outside of the shock absorber cylinder 1 , and then absorb the sound through the sound absorption sponge ring 24 in the sound absorption cavity 23 .

This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading this specification, but as long as the utility model is used in the present invention All new types of claims are protected by the patent law.

Claims (7)

1. A self-lubricating shock absorber, comprising a shock absorber cylinder (1), characterized in that: a connecting block (2) is fixedly connected to the bottom of the shock absorber cylinder (1), and the shock absorber is The inner wall of the cylinder body (1) is slidably connected with a first piston (3), the lower surface of the first piston (3) is fixedly connected with a limiting column (4), and the surface of the limiting column (4) is sleeved with a A shock-absorbing spring (5), one end of the shock-absorbing spring (5) is fixedly connected to the lower surface of the first piston (3), and the other end of the shock-absorbing spring (5) is connected to the shock absorber cylinder (1) The upper surface of the first piston (3) is fixedly connected with a fixing column (6), and the top of the fixing column (6) is fixedly connected with a second piston (7). A connecting rod (8) is fixedly connected to the upper surface of the piston (7), and one end of the connecting rod (8) extends to the surface of the shock absorber cylinder (1); A rubber buffer block (9) is slidably sleeved on the surface of the connecting rod (8), a sealing cover (10) is threadedly connected to the inner wall of the shock absorber cylinder (1), and the surface of the sealing cover (10) is threaded. A through hole is fixedly opened, the inner wall of the through hole is slidably connected with the surface of the connecting rod (8), the surface of the sealing cover (10) is inserted into the surface of the shock absorber cylinder (1), and the fixed column The surface of (6) is fixedly connected with the surface of the shock absorber cylinder (1) with a lubricating sound-absorbing device, the lubricating and sound-absorbing device comprises a sound-absorbing sponge cylinder (11) and a fixing ring (12), the sound-absorbing sponge cylinder (11) The inner wall of the fixing ring (12) is fixedly connected with the surface of the fixing column (6), and the inner wall of the fixing ring (12) is fixedly sleeved with the surface of the shock absorber cylinder (1). 2. A self-lubricating shock absorber according to claim 1, characterized in that: the surface of the fixing column (6) is fixedly connected with functional tubes (13), and four of the functional tubes (13) are fixed to The axial center of the column (6) is distributed in a circular array. 3. A self-lubricating shock absorber according to claim 2, characterized in that: one end of the functional tube (13) penetrates and extends to the surface of the sound-absorbing sponge cylinder (11), and the functional tube (13) A locating ring (14) is fixedly connected to the inner wall of the locating ring (14), a lubricating ball (15) is arranged between the two locating rings (14), and the surface of the lubricating ball (15) is slidably connected with the inner wall of the locating ring (14). An oil outlet groove (16) is fixed on the surface of the lubricating ball (15), and the inner wall of the oil outlet groove (16) is in the shape of an arc. 4. A self-lubricating shock absorber according to claim 3, characterized in that: the surface of the lubricating ball (15) extends to the surface of the functional tube (13), and the shock absorber cylinder (1) Wear-resistant grooves (17) are fixedly opened on the inner wall of the wear-resistant grooves (17). 18), the surface of the lubricating ball (15) is slidingly connected with the surface of the ceramic wear strip (18). 5 . The self-lubricating shock absorber according to claim 4 , wherein an oil storage sponge ( 19 ) is slidably connected to the inner wall of the functional tube ( 13 ), and one end of the oil storage sponge ( 19 ) is slidably connected. 6 . It is slidably connected with the surface of the lubricating ball (15), the inner wall of the functional pipe (13) is fixedly provided with an oil injection hole (20), and one end of the oil injection hole (20) extends to the surface of the functional pipe (13). A sealing plug (21) is inserted into the inner wall of the oil injection hole (20), and lubricating oil is provided inside the functional pipe (13). 6. A self-lubricating shock absorber according to claim 1, characterized in that: a plurality of the fixing rings (12) are evenly distributed on the surface of the shock absorber cylinder (1), and the fixing rings (12) ) surface is fixedly connected with an outer cylinder (22). 7. A self-lubricating shock absorber according to claim 6, characterized in that: the inner wall of the outer cylinder (22) and the surface of the fixing ring (12) and the surface of the shock absorber cylinder (1) are arranged A sound-absorbing cavity (23) is provided, and a sound-absorbing sponge ring (24) is slidably connected to the inner wall of the sound-absorbing cavity (23).

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