CN219035424U

CN219035424U - Heavy-load small-stroke shock absorber

Info

Publication number: CN219035424U
Application number: CN202320061106.7U
Authority: CN
Inventors: 徐信爱; 王传明
Original assignee: Rizhao Runzeng Machinery Co ltd
Current assignee: Rizhao Runzeng Machinery Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-16
Anticipated expiration: 2033-01-06

Abstract

The utility model provides a heavy-load small-stroke shock absorber, which relates to the technical field of shock absorbers and comprises two oil pressure shock absorbers, a lower yoke plate and an upper yoke plate, wherein the oil pressure shock absorbers are arranged on the lower yoke plate; the device reduces the stroke by reducing the height of the assembly of the whole device, and increases the supporting strength when the heavy load is given, so that the whole device is more durable and the safety is improved.

Description

Heavy-load small-stroke shock absorber

Technical Field

The utility model relates to the technical field of shock absorbers, in particular to a heavy-load small-stroke shock absorber.

Background

Shock absorbers (absorbers) are used to suppress the shock and impact from road surface when the spring bounces after absorbing the shock. The damping device is widely used for automobiles, and is used for accelerating the damping of the vibration of the frames and the automobile bodies so as to improve the running smoothness of the automobiles. While the shock absorbing spring can filter the shock of road surface when passing over uneven road surface, the spring itself can reciprocate, and the shock absorber is used to restrain the spring from jumping.

Specifically, in the damping system of tricycles, motorcycles and industrial open equipment, a single-guide damper is generally adopted, and the structure of the damper is shown in fig. 2, and mainly comprises an oil pressure damper, a high-strength column and a damping spring; the shock absorber has low overall strength, the driver is not easy to control the direction in the steering process, the safety of a vehicle is improved along with more applications of artificial intelligent equipment, the requirements on operability and drivability are particularly important, particularly industrial and mining equipment is required to reduce the height of the equipment and heavy load, and therefore, the traditional single-guide shock absorber needs to be improved.

Disclosure of Invention

The utility model aims to solve the problems in the background art, and further provides a heavy-load small-stroke shock absorber with high safety performance and good driving effect.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a little stroke shock absorber of heavy load, includes oil pressure damper, lower yoke plate and last yoke plate, and oil pressure damper has two and installs on lower yoke plate, and oil pressure damper is connected with the buffer post, and the one end of buffer post is connected with the connecting seat of installing in last yoke plate bottom, is equipped with down the spring holder on the yoke plate down, is equipped with the spring holder on the upper yoke plate, installs damping spring between upper spring seat and the lower spring holder.

Furthermore, the oil pressure damper is connected with the lower connecting plate in a welding mode so as to improve the connection firmness between the oil pressure damper and the lower connecting plate.

Further, be equipped with on the connecting seat with buffer column assorted jack, the buffer column is pegged graft and is adopted the welding mode to connect both behind the jack, and the position alignment of connecting seat and buffer column not only is convenient for in the design of jack, and the buffer column inserts the jack earlier and welds the fastness of connection between the two further has been improved.

Furthermore, the buffer column adopts thermal refining, and the hardness is between HRC25 and 35, so that the buffer column has good comprehensive mechanical properties.

Further, the surface roughness of the buffer column is between Ra0.6 and 0.9.

Furthermore, the damping spring adopts thermal refining, and the hardness is between HRC43 and 48.

Furthermore, the shock absorption spring adopts shot peening and setting treatment to reduce part fatigue and improve service life.

Further, the surface of the buffer column is chromed to improve the strength, hardness, wear resistance and oxidation resistance.

Further, the outer surface of the damping cylinder of the oil pressure damper is subjected to plastic spraying treatment to form a protective coating on the outer surface of the damping cylinder, so that the service life of the damping cylinder is prolonged.

Further, the bottom of the lower connecting plate is provided with a mounting seat so as to be convenient to connect with an external structure.

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

according to the utility model, the height of the assembly of the whole device is reduced, the stroke is reduced, the supporting strength is increased when the heavy load is given, the whole device is more durable, the safety is improved, and a driver adopts double guidance and large support through the mutual matching of the hydraulic shock absorbers on two sides and the middle shock absorption spring in the driving process, so that the shock generated in the driving process can be well restrained, the operability and the driving performance of the vehicle are improved, and the driving process of a curve is safer and more stable due to the reinforcing of the supporting force of the whole device.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic structural view of a conventional shock absorber;

wherein: 1. a lower yoke plate; 11. a mounting base; 2. an upper yoke plate; 21. a connecting seat, a buffer column and a connecting seat; 4. an oil pressure damper; 5. a lower spring seat; 51. an upper spring seat; 52. and a damping spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The utility model will be further described with reference to the accompanying drawings and examples:

as shown in FIG. 1, the heavy-load small-stroke shock absorber comprises an oil pressure damper 4, a lower yoke plate 1 and an upper yoke plate 2, wherein the oil pressure damper 4 is provided with two oil pressure dampers and is vertically arranged on the lower yoke plate 1, the oil pressure dampers 4 are connected with buffer columns 3, one ends of the buffer columns 3 are connected with connecting seats 21 arranged at the bottom of the upper yoke plate 2 so as to realize the position fixation among the lower yoke plate 1, the oil pressure dampers 4, the buffer columns 3 and the upper yoke plate 2, a lower spring seat 5 is arranged on the lower yoke plate 1, an upper spring seat 51 which is coaxially arranged with the lower spring seat 5 is also arranged on the upper yoke plate 2, and a damping spring 52 is arranged between the upper spring seat 51 and the lower spring seat 5.

Specifically, the hydraulic damper 4 includes a damper cylinder, a piston rod, a hydraulic seal ring, a dust ring, etc., which is not described in the prior art, and the design is realized by using the combination thereof, and the hydraulic damper 4 and the lower link plate 1 are directly welded together in the installation process so as to improve the connection firmness between the two;

specifically, be equipped with one on the connecting seat 21 with buffering post 3 assorted jack, buffering post 3 peg graft and utilize welding equipment to weld both after the jack, the position alignment of connecting seat 21 and buffering post 3 not only is convenient for in the design of jack, and buffering post 3 inserts the jack earlier and welds the fastness of connection between the two further has been improved.

It is worth noting that, the assembly height of this design is not more than 60cm, through reducing the assembly height of whole device, reduce the stroke, increased the support intensity when giving the heavy load for whole device is more durable, and the security improves, and the driver is in driving the in-process, adopts double guidance, big support through the cooperation of the hydraulic damper of both sides and middle part damping spring 52, and the vibration that can be better in-process of restraining driving produced like this improves the operability and the travelling performance of vehicle, makes safer stable in-process of driving of bend owing to the holding power enhancement of whole device.

In order to improve the use effect of the device, the following conditions should be met in the design and production process:

the hardness of the buffer column 3 after quenching and tempering is between HRC25 and HRC 35, so that the buffer column has good comprehensive mechanical properties, the surface roughness is between Ra0.6 and 0.9, the hardness of the buffer spring 52 after quenching and tempering is between HRC43 and HRC 48, and the buffer column is subjected to shot peening strengthening and setting treatment to reduce part fatigue and prolong the service life.

Wherein, the surface of the buffer column 3 is plated with chromium to improve the strength, hardness, wear resistance and oxidation resistance; the outer surface of the damping cylinder of the hydraulic damper 4 is subjected to plastic spraying treatment to form a protective coating on the outer surface of the damping cylinder, so that the service life of the hydraulic damper is prolonged.

Through the design, after 30 ten thousand double-acting double-frequency tests, the device has the temperature of less than or equal to 80 ℃ and has no abnormal phenomena such as oil leakage, obvious noise and the like, and the whole device has good use effect.

Wherein, the bottom of the lower yoke plate 1 is also provided with two mounting seats 11 which are convenient to be connected with an external structure.

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 foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a little stroke shock absorber of heavy load, a serial communication port, including oil pressure damper (4), lower yoke plate (1) and last yoke plate (2), oil pressure damper (4) have two and install on lower yoke plate (1), oil pressure damper (4) are connected with buffer post (3), the one end of buffer post (3) is connected with connecting seat (21) of installing last yoke plate (2) bottom, be equipped with down spring holder (5) on lower yoke plate (1), be equipped with on upper yoke plate (2) spring holder (51), install damping spring (52) between upper spring holder (51) and lower spring holder (5).

2. A heavy-load small stroke vibration damper according to claim 1, characterized in that the oil damper (4) is connected to the lower yoke plate (1) by welding.

3. The heavy-load small-stroke shock absorber according to claim 1, wherein the connecting seat (21) is provided with a jack matched with the buffer column (3), and the buffer column (3) is spliced in the jack and then is connected with the jack in a welding mode.

4. A heavy-load small stroke vibration damper according to claim 1, characterized in that the said buffer column (3) is heat-treated and the hardness should be between HRC 25-35.

5. A heavy load small stroke vibration absorber according to claim 1 or 4, wherein the surface roughness of the bumper post (3) is between ra 0.6-0.9.

6. A heavy load small stroke vibration damper according to claim 1, wherein said damper spring (52) is heat treated and has a hardness between HRC 43-48.

7. A heavy load small stroke vibration damper as recited in claim 1 or 6, wherein said damper spring (52) is shot peening and setting.

8. A heavy load small stroke vibration absorber according to claim 1, wherein said bumper post (3) is surface chrome plated.

9. A heavy load small stroke vibration damper according to claim 1, wherein the outer surface of the cylinder of the oil pressure damper (4) is treated with a plastic spray to form a protective coating on the outer surface thereof.