CN213331787U

CN213331787U - Rack cylinder with good buffering effect

Info

Publication number: CN213331787U
Application number: CN202022247722.0U
Authority: CN
Inventors: 刘江华; 高培栋; 郭志敏
Original assignee: Handan Taigu Hydraulic Machinery Manufacturing Co ltd
Current assignee: Handan Taigu Hydraulic Machinery Manufacturing Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-01
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses an effectual rack cylinder of buffering, including rack cylinder, piston, first inlet port, buffer control valve and first spring seted up the stroke way in the rack cylinder, be equipped with the rack in the stroke way, the piston is all installed at the rack both ends, first inlet port has been seted up at stroke way interior one end top, the second inlet port has been seted up on stroke way interior other end top, both ends just are located first inlet port and second inlet port one side and all are equipped with first spring in the stroke way, first spring one end is welded and is equipped with the ejector pad, the steel ball groove has been seted up to one side in the ejector pad, the steel ball inslot is equipped with the steel ball. Whole buffer gear durable, frictional force is little, and at the bottom of the injury to the cylinder body, the buffering prescription is stable, can not appear the problem of buffering inefficacy, cylinder fish tail, has higher practicality.

Description

Rack cylinder with good buffering effect

Technical Field

The utility model relates to a rack cylinder technical field, in particular to buffering effectual rack cylinder.

Background

When the common rack cylinder works, after the stroke is in place, the common buffer is gap buffer, and the buffer effect is realized by the clearance fit of the buffer sleeve and the cylinder bottom. After long-time work, the buffer sleeve rubs with the cylinder tail, so that the buffer sleeve and the cylinder tail are seriously abraded, even the phenomenon of chipping occurs, finally the cylinder barrel is scratched, the rack cylinder cannot normally work, the problems of buffer failure and cylinder barrel scratching of the rack cylinder after long-time use cannot be avoided, and the buffer mechanism is durable and has a good buffer mechanism. Therefore, the rack cylinder with good buffering effect is provided.

Disclosure of Invention

A primary object of the present invention is to provide a rack cylinder with good buffering effect, which can effectively solve the problems in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an effectual rack cylinder of buffering, includes rack cylinder, piston, first inlet port, buffer control valve and first spring the stroke way has been seted up in the rack cylinder, be equipped with the rack in the stroke way, the piston is all installed at the rack both ends, first inlet port has been seted up at stroke way inner end top, the second inlet port has been seted up on stroke way inner end top, both ends just are located first inlet port and second inlet port one side and all are equipped with first spring in the stroke way, first spring one end is welded and is equipped with the ejector pad, the steel ball groove has been seted up to one side in the ejector pad, the steel ball inslot is equipped with the steel ball.

Furthermore, a second spring is arranged between the steel ball groove and the steel ball in a cushioning mode.

Furthermore, the other end of the first spring is welded with the inner wall of the stroke channel.

Furthermore, the bottom parts of the two ends in the stroke channel are respectively provided with a first oil inlet hole and a second oil inlet hole buffer regulating valve.

Further, an installation block is welded on one side of the rack cylinder, a gear is installed between the installation block and the stroke channel through a bearing, and the gear is meshed with one side of the rack.

Compared with the prior art, the utility model discloses following beneficial effect has: the piston at one end of the rack is pushed by supplying oil to one end of the stroke channel through the first oil inlet hole or the second oil inlet hole, so that the rack moves to the other end along with the gear meshing, when the piston at the other end of the rack moves in place, the piston can push and press the push block, the steel ball at one side of the push block can effectively block the oil inlet hole, oil at the other end of the stroke channel can only return through the buffer regulating valve, the first spring, the push block and the steel ball can effectively form a one-way valve, personnel can realize the regulation of oil return speed by regulating the opening degree of the buffer regulating valve hole, the buffer effect is finally achieved, after the piston leaves the press setting of the push block, the push block can be effectively pushed and returned through the elasticity of the first spring so as to assist the next pushing and buffering of the piston, the whole buffer mechanism is durable, the friction force is small, the bottom of damage to the cylinder body is low, the problems of buffer failure and cylinder scratch can not occur, and the device has higher practicability.

Drawings

Fig. 1 is the utility model relates to a buffering effectual rack cylinder's rack cylinder cross-sectional structure sketch map.

Fig. 2 is the utility model relates to a effectual ejector pad cross-sectional structure schematic diagram of rack cylinder of buffering.

Fig. 3 is an enlarged schematic view of fig. 1A of the rack cylinder with good buffering effect.

In the figure: 1. a rack cylinder; 2. a travel way; 3. a rack; 4. a piston; 5. mounting blocks; 6. a gear; 7. a first oil inlet hole; 8. a second oil inlet hole; 9. a first spring; 10. a push block; 11. a steel bead groove; 12. a second spring; 13. steel balls; 14. buffer regulating valve.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a rack cylinder with a good buffering effect comprises a rack cylinder 1, a piston 4, a first oil inlet 7, a buffering regulating valve 14 and a first spring 9, wherein a stroke channel 2 is formed in the rack cylinder 1, a rack 3 is arranged in the stroke channel 2, the piston 4 is mounted at each of two ends of the rack 3, the first oil inlet 7 is formed in the top of one end in the stroke channel 2, the second oil inlet 8 is formed in the top of the other end in the stroke channel 2, the first spring 9 is arranged at each of two ends in the stroke channel 2 and located on one side of the first oil inlet 7 and one side of the second oil inlet 8, a push block 10 is welded at one end of the first spring 9, a steel ball groove 11 is formed in one side of the push block 10, and a steel ball 13 is arranged in the steel ball groove 11.

And a second spring 12 is padded between the steel ball groove 11 and the steel ball 13.

In this embodiment, as shown in fig. 1 and 2, the second spring 12 can push and press the steel ball 13 outwards by its elastic force, so that the steel ball 13 can seal the oil inlet.

Wherein, the other end of the first spring 9 is welded with the inner wall of the stroke passage 2.

In the present embodiment, as shown in fig. 1, the use of the first spring 9 increases the damping effect after the travel of the piston 4.

And the bottom parts of the two ends in the stroke passage 2 are respectively provided with a buffer regulating valve 14 corresponding to the first oil inlet 7 and the second oil inlet 8.

Wherein, rack cylinder 1 one side is welded and is equipped with installation piece 5, install gear 6 through the bearing in the installation piece 5 and between the stroke way 2, gear 6 is connected with 3 one side meshes of rack.

It should be noted that, the utility model relates to a rack cylinder with good buffering effect, when working, a person connects a hydraulic pump with a first oil inlet 7, a second oil inlet 8 and a buffering adjustment valve 14 respectively, when in use, the person supplies oil to one end of a stroke channel 2 through the first oil inlet 7 or the second oil inlet 8, so that a piston 4 at one end of a rack 3 is pushed, the rack 3 moves to the other end along with the meshing of a gear 6, when the piston 4 at the other end of the rack 3 moves to the right position, the piston 4 pushes and presses a push block 10, a steel ball 13 at one side of the push block 10 effectively plugs the oil inlet, oil at the other end of the stroke channel 2 can only return oil through the buffering adjustment valve 14, so that a one-way valve is effectively formed by the first spring 9, the push block 10 and the steel ball 13, the person can adjust the opening degree of a buffering adjustment valve hole, and adjust the oil return speed, finally, the buffering effect is achieved, after the piston 4 is separated from the pressing setting of the push block 10, the push block 10 can be effectively pushed to return through the elastic force of the first spring 9, and the piston 4 is assisted to push and buffer next time.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A rack cylinder with good buffering effect comprises a rack cylinder (1), a piston (4), a first oil inlet hole (7), a buffering regulating valve (14) and a first spring (9), it is characterized in that a stroke channel (2) is arranged in the rack cylinder (1), a rack (3) is arranged in the stroke channel (2), pistons (4) are arranged at two ends of the rack (3), a first oil inlet hole (7) is formed in the top of one end in the stroke channel (2), a second oil inlet hole (8) is arranged at the top end of the other end in the stroke passage (2), a first spring (9) is arranged at two ends in the stroke channel (2) and at one side of the first oil inlet hole (7) and one side of the second oil inlet hole (8), a push block (10) is welded at one end of the first spring (9), a steel ball groove (11) is formed in one side in the push block (10), and a steel ball (13) is arranged in the steel ball groove (11).

2. The rack cylinder with good buffering effect as claimed in claim 1, wherein: and a second spring (12) is padded between the steel ball groove (11) and the steel ball (13).

3. The rack cylinder with good buffering effect as claimed in claim 1, wherein: the other end of the first spring (9) is welded with the inner wall of the stroke channel (2) to be connected.

4. The rack cylinder with good buffering effect as claimed in claim 1, wherein: and the bottom parts of the two ends in the stroke channel (2) are respectively provided with a first oil inlet hole (7) and a second oil inlet hole (8) buffer regulating valve (14).

5. The rack cylinder with good buffering effect as claimed in claim 1, wherein: the rack cylinder (1) is welded on one side and is provided with an installation block (5), a gear (6) is installed between the installation block (5) and the stroke channel (2) through a bearing, and the gear (6) is meshed with one side of the rack (3).