CN219263066U

CN219263066U - Guiding device of one-step forming oil return hole shock absorber

Info

Publication number: CN219263066U
Application number: CN202320036418.2U
Authority: CN
Inventors: 吕伟杰; 杨军
Original assignee: Zhejiang Zhengsheng Shock Absorber Co ltd
Current assignee: Zhejiang Zhengsheng Shock Absorber Co ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-06-27
Anticipated expiration: 2033-01-07

Abstract

The utility model discloses a guiding device of a one-time formed oil return hole shock absorber, which comprises a guiding device body, wherein an oil seal assembly cavity is formed in the upper end of the inside of the guiding device body, oil return holes formed by one-time forming processing are formed in the left side and the right side of the inside of the guiding device body, a cylinder shell is arranged on one side of the inside of the guiding device body, which is positioned at the upper end of the oil return holes, a limiting bottom ring, a lower piston and an upper piston are arranged in the cylinder shell from bottom to top, the limiting bottom ring is fixedly connected with the cylinder shell, and an air accommodating cavity is formed between the lower piston and the upper piston in the cylinder shell. The dynamic balance structure is added in the oil return hole to eliminate impact force, so that damage to the oil seal caused by the impact force is prevented.

Description

Guiding device of one-step forming oil return hole shock absorber

Technical Field

The utility model relates to the field of guiding devices, in particular to a guiding device of a one-step forming oil return hole damper.

Background

The vibration damper is an appliance for accelerating the vibration attenuation of a frame and a vehicle body so as to improve the running smoothness of the vehicle, and is arranged in a suspension system of most vehicles. The guide is one of important parts in the shock absorber, and mainly plays a role in guiding a piston rod which is slidably arranged in a working cylinder of the shock absorber, so that smoothness of the piston in the running process is guaranteed, and redundant shock absorber oil is conveyed into the oil storage cylinder through an oil passing hole of the guide in the piston moving process, so that communication between the working cylinder and the oil storage cylinder is guaranteed.

However, in practice, the person skilled in the art finds that: in the using process of the guide device in the prior art, some oil remains on the surface of the piston rod due to long-time use, so that the oil seal pressure can be increased during use, and the service life of the guide device is further reduced; and the oil seal in the guide device in the prior art influences the tightness due to the fact that the instantaneous pressure is increased and deformed, so that the service life of the guide device is reduced.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the guiding device of the one-step forming oil return hole shock absorber, and the impact force is eliminated by adding the dynamic balance structure in the oil return hole, so that the damage of the impact force to the oil seal is prevented.

In order to solve the technical problems, the utility model provides the following technical scheme: the guiding device of the one-time molding oil return hole shock absorber comprises a guiding device body, an oil seal assembly cavity is formed in the upper end of the inner portion of the guiding device body, oil return holes formed by one-time molding processing are formed in the left side and the right side of the inner portion of the guiding device body, a cylinder shell is arranged on one side of the inner portion of the guiding device body, a limiting bottom ring, a lower piston and an upper piston are arranged in the inner portion of the cylinder shell from bottom to top, the limiting bottom ring is fixedly connected with the cylinder shell, and an air accommodating cavity is formed between the lower piston and the upper piston in the inner portion of the cylinder shell.

As the guiding device of the one-step forming oil return hole shock absorber, the guiding device adopts the preferable technical scheme that one side of the upper end of the upper piston is rotatably provided with the adjusting screw, and the adjusting screw is connected with the cylinder shell through screw thread matching.

As the guiding device of the one-time forming oil return hole shock absorber, the guiding device adopts the preferable technical scheme that one end of the outer part of the adjusting screw, which is positioned outside the cylinder shell, is provided with the adjusting disc which is fixedly connected with the adjusting screw.

As the guiding device of the one-step forming oil return hole shock absorber, the guiding device is characterized in that the lower end of the inner part of the guiding device body is provided with a mounting hole, the left side and the right side of the inner part of the mounting hole are respectively provided with a branch oil hole, and the branch oil holes are communicated with the oil return holes.

As the guiding device of the one-step forming oil return hole shock absorber, the guiding device is preferably provided with an upper oil scraper ring and a lower oil scraper ring which are respectively arranged on the upper side and the lower side of a port of the branch oil hole in the mounting hole.

As the guiding device of the one-time forming oil return hole shock absorber, the guiding device is preferably provided with the technical scheme, and oil guiding grooves are formed in the upper oil scraping ring and the lower oil scraping ring and are respectively arranged on two sides, close to the branch oil holes, of the inner part of the upper oil scraping ring and the two sides, close to the branch oil holes.

Compared with the prior art, the utility model has the following beneficial effects:

1. through setting up the oil gallery, the oil gallery adopts one shot forming manufacturing process, and inside the oil gallery got into, when the impact force of oil was great, the piston was down in the oil striking, and piston upward the piston department removed down, and the lower piston receives the impact force that oil produced and holds under the effect of gas chamber pressure to the impact force of oil has been eliminated, prevent impact force, pressure too big to cause the damage to the oil blanket, thereby the oil blanket in the director influences the leakproofness because the transient pressure increases deformation in the prior art has been solved, and then reduces the problem of director's life.

2. Through setting up oil scraping ring and lower oil scraping ring, the inside to the guider body is installed to the piston rod, and when the piston rod moved in the inside of mounting hole, the outside oil of piston rod was scraped off through lower oil scraping ring and last oil scraping ring, and the oil of being scraped off flows into in the oil return hole after entering branch oilhole through leading the oil groove, has reduced the effort of oil pressure to the oil blanket.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the overall structure of the present utility model;

FIG. 3 is an enlarged view of a portion of the area A of FIG. 2 in accordance with the present utility model;

FIG. 4 is a perspective view of the lower and upper oil scraper rings of the present utility model;

fig. 5 is a top view of the present utility model.

Wherein: 1. a guide body; 2. an oil seal assembly cavity; 3. a mounting hole; 4. a lower oil scraper ring; 5. an upper oil scraper ring; 6. an oil guiding groove; 7. an oil return hole; 8. a branch oil hole; 9. a cartridge housing; 10. a gas-accommodating cavity; 11. a limiting bottom ring; 12. adjusting a screw; 13. an adjusting plate; 14. an upper piston; 15. and a lower piston.

Description of the embodiments

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.

Examples

As shown in fig. 1, 2, 3 and 5, the utility model provides a guiding device of a one-step forming oil return hole shock absorber, which comprises a guiding device body 1, wherein an oil seal assembly cavity 2 is arranged at the upper end inside the guiding device body 1, oil return holes 7 formed by one-step forming processing are formed in the left side and the right side inside the guiding device body 1, a cylinder shell 9 is arranged on one side, which is positioned at the upper end of the oil return holes 7, inside the guiding device body 1, a limiting bottom ring 11, a lower piston 15 and an upper piston 14 are arranged in the cylinder shell 9 from bottom to top, the limiting bottom ring 11 is fixedly connected with the cylinder shell 9, and an air accommodating cavity 10 is formed between the lower piston 15 and the upper piston 14 inside the cylinder shell 9.

When the impact force of the oil is large, the oil impacts the lower piston 15, the lower piston 15 moves towards the upper piston 14, and the lower piston 15 forms dynamic balance under the action of the impact force generated by the oil and the pressure of the air containing cavity 10, so that the impact force of the oil is eliminated, and the damage to the oil seal caused by the excessive impact force and pressure is prevented.

In other embodiments, as shown in fig. 3, an adjusting screw 12 is rotatably installed on one side of the upper end of the upper piston 14, and the adjusting screw 12 is connected with the cartridge housing 9 through a screw-fit.

By rotating the adjusting screw 12, the adjusting screw 12 and the cylinder shell 9 convert the rotation movement of the adjusting screw 12 into the linear movement of the adjusting screw 12 under the threaded fit, so that the position of the upper piston 14 is changed, and the size of the air accommodating cavity 10 is changed, and the pressure is changed.

In other embodiments, as shown in fig. 3, an adjusting disk 13 is mounted on the end of the adjusting screw 12 outside the cartridge housing 9, and the adjusting disk 13 is fixedly connected with the adjusting screw 12.

The rotation adjustment of the adjusting screw 12 is facilitated by the adjusting disk 13.

In other embodiments, as shown in fig. 2 and 5, the lower end of the inside of the guide body 1 is provided with a mounting hole 3, both the left and right sides of the inside of the mounting hole 3 are provided with branch oil holes 8, and the branch oil holes 8 are communicated with the oil return holes 7.

The branch oil hole 8 is used for pouring oil outside the piston rod into the oil return hole 7.

In other embodiments, as shown in fig. 2 and 5, an upper oil scraper ring 5 and a lower oil scraper ring 4 are respectively installed inside the installation hole 3 at the upper and lower sides of the port of the branch oil hole 8.

The upper oil scraper ring 5 and the lower oil scraper ring 4 are used for scraping off the oil remained outside the piston rod.

In other embodiments, as shown in fig. 4, both sides of the insides of the upper and lower

oil scraper rings

5 and 4 near the branch oil holes 8 are provided with oil guide grooves 6.

The upper oil scraper ring 5 and the lower oil scraper ring 4 scrape oil outside the piston rod and guide and drain the oil into the branch oil holes 8 through the oil guide grooves 6.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Guiding device of one shot forming oil return hole shock absorber, including guider body (1), its characterized in that: the oil seal assembly device is characterized in that an oil seal assembly cavity (2) is formed in the upper end of the inside of the guide device body (1), oil return holes (7) formed by one-time forming processing are formed in the left side and the right side of the inside of the guide device body (1), a cylinder shell (9) is arranged on one side of the upper end of the oil return holes (7) in the inside of the guide device body (1), a limiting bottom ring (11), a lower piston (15) and an upper piston (14) are arranged in the inside of the cylinder shell (9) from bottom to top, the limiting bottom ring (11) is fixedly connected with the cylinder shell (9), and an air accommodating cavity (10) is formed between the lower piston (15) and the upper piston (14) in the inside of the cylinder shell (9).

2. The guiding device of the one-shot oil return hole damper according to claim 1, wherein: one side of the upper end of the upper piston (14) is rotatably provided with an adjusting screw (12), and the adjusting screw (12) is connected with the cylinder shell (9) through threaded fit.

3. The guiding device of the one-shot oil return hole damper according to claim 2, wherein: an adjusting disc (13) is arranged at one end, outside the cylinder shell (9), of the adjusting screw (12), and the adjusting disc (13) is fixedly connected with the adjusting screw (12).

4. The guiding device of the one-shot oil gallery damper according to claim 3, wherein: the guiding device is characterized in that the lower end of the inside of the guiding device body (1) is provided with a mounting hole (3), the left side and the right side of the inside of the mounting hole (3) are respectively provided with a branch oil hole (8), and the branch oil holes (8) are communicated with the oil return holes (7).

5. The guiding device of the one-shot oil gallery damper as set forth in claim 4, wherein: an upper oil scraper ring (5) and a lower oil scraper ring (4) are respectively arranged at the upper side and the lower side of the port of the branch oil hole (8) in the mounting hole (3).

6. The guiding device of the one-shot oil gallery damper as set forth in claim 5, wherein: oil guide grooves (6) are formed in the upper oil scraper ring (5) and the lower oil scraper ring (4) and are arranged on two sides, close to the branch oil holes (8), of the inner part.