CN215257093U

CN215257093U - Self-lubricating cylinder

Info

Publication number: CN215257093U
Application number: CN202120623156.0U
Authority: CN
Inventors: 董勇; 葛兵; 麦泽芝
Original assignee: Shenzhen Yongwei Technology Co ltd
Current assignee: Shenzhen Yongwei Technology Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-12-21
Anticipated expiration: 2031-03-26

Abstract

The utility model discloses a self-lubricating cylinder, include: the cylinder body all is equipped with the air guide hole on the lateral wall of the top of cylinder body and bottom. The inside of the cylinder body is provided with a piston seat in a sliding and sealing way, and the piston seat slides between the two air guide holes. A piston rod is coaxially fixed on the piston seat, and the top end of the piston rod penetrates out of the top of the cylinder body. The inside of cylinder body still is equipped with the rubber circle, and the rubber circle overlaps on the piston rod, and the top end face of rubber circle is fixed with the top inner wall of cylinder body. The inside of rubber circle is equipped with the oil storage cavity, is equipped with a plurality of spray pin holes that communicate with the oil storage cavity on the week lateral wall of rubber circle, and the cover is equipped with on the piston rod to be used for the extrusion rubber circle to take place deformation and with fluid from spraying pin hole spun spring. The utility model has the advantages that: the whole structure is simple and practical, and the manufacture is easy. Can lubricate at the in-process of piston work, spray fluid to the inner wall of cylinder body is automatic, and lubricated effect is very good.

Description

Self-lubricating cylinder

Technical Field

The utility model relates to a technical field of cylinder, in particular to self-lubricating cylinder.

Background

With the development of industrial automatic production technology, the application of the cylinder is more and more frequent. When the cylinder works, the piston needs to continuously reciprocate, so that the lubrication of the piston in the cylinder is very important. The existing method for lubricating the piston of the cylinder mostly adopts the mode of smearing lubricating grease on the inner wall of the cylinder body of the cylinder in advance, in the actual work of the lubricating mode, the lubricating grease is pushed by the piston to be concentrated at two ends of the inner wall of the cylinder body, and the lubricating effect is poor.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model aims at providing a self-lubricating cylinder aims at solving the poor problem of piston lubrication effect of current cylinder.

In order to achieve the above object, the utility model provides a self-lubricating cylinder, include: the cylinder body all is equipped with the air guide hole on the lateral wall of the top of cylinder body and bottom. The inside of the cylinder body is provided with a piston seat in a sliding and sealing way, and the piston seat slides between the two air guide holes. A piston rod is coaxially fixed on the piston seat, and the top end of the piston rod penetrates out of the top of the cylinder body. The inside of cylinder body still is equipped with the rubber circle, and the rubber circle overlaps on the piston rod, and the top end face of rubber circle is fixed with the top inner wall of cylinder body. The inside of rubber circle is equipped with the oil storage cavity, is equipped with a plurality of spray pin holes that communicate with the oil storage cavity on the week lateral wall of rubber circle, and the cover is equipped with on the piston rod to be used for the extrusion rubber circle to take place deformation and with fluid from spraying pin hole spun spring.

Preferably, the cylinder block includes: the lower cylinder body is in threaded connection with the upper end cover.

Preferably, the oil reservoir chamber is arranged in an annular shape coaxial with the rubber ring.

Preferably, the peripheral side wall of the rubber ring is annularly provided with an inclined plane, and the plurality of spraying needle holes are arranged on the inclined plane.

Preferably, the bottom end face of the rubber ring is provided with a steel washer coaxial with the rubber ring, the top end of the spring is fixed with the steel washer, and the bottom end of the spring is fixed with the piston seat.

Preferably, the upper end cover is provided with an oil filling hole communicated with the oil storage cavity, and a one-way check valve is arranged in the oil filling hole.

Compared with the prior art, the beneficial effects of the utility model reside in that: the whole structure is simple and practical, and the manufacture is easy. Can lubricate at the in-process of piston work, spray fluid to the inner wall of cylinder body is automatic, and lubricated effect is very good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional structure diagram according to an embodiment of the present invention;

the purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.

Detailed Description

The utility model provides a self-lubricating cylinder.

Referring to fig. 1, fig. 1 is a schematic cross-sectional structure diagram according to an embodiment of the present invention.

As shown in fig. 1, in the embodiment of the present invention, the self-lubricating cylinder includes: the cylinder body 100, the top and the lateral wall of the bottom of the cylinder body 100 are all provided with air vents 110. The cylinder block 100 is provided with a piston seat 210 in a sliding and sealing manner, and the piston seat 210 slides between the two air guide holes 110. A piston rod 220 is coaxially fixed on the piston seat 210, and the top end of the piston rod 220 penetrates the top of the cylinder body 100.

The inside of cylinder body 100 still is equipped with rubber circle 300, and rubber circle 300 overlaps on the piston rod 220, and the top terminal surface of rubber circle 300 is fixed with the top inner wall of cylinder body 100.

Specifically, in the present embodiment, in order to facilitate the installation of the rubber ring, the cylinder block 100 includes: a lower cylinder 120 and an upper end cap 130, and a screw connection is formed between the lower cylinder 120 and the upper end cap 130.

The inside of rubber circle 300 is equipped with oil storage cavity 310, is equipped with a plurality of spray needle holes 311 that communicate with oil storage cavity 310 on the week lateral wall of rubber circle 300, and the cover is equipped with on the piston rod 220 to be used for extrudeing rubber circle 300 and takes place to deform and with fluid from spray needle holes 311 spun spring 400.

Specifically, in the present embodiment, the oil storage chamber 310 is provided in an annular shape coaxial with the rubber ring 300, and the oil storage amount can be greatly increased.

Specifically, in the present embodiment, the peripheral sidewall ring of the rubber ring 300 is provided with a slope 320, and a plurality of spray needle holes 311 are provided on the slope 320. By arranging the inclined plane 320 on the peripheral side wall of the rubber ring 300 and arranging the spray needle holes 311 on the inclined plane 320, the oil sprayed through the spray needle holes 311 can be directly sprayed onto the inner wall of the cylinder body 100, and the waste of the oil is reduced.

Specifically, in this embodiment, a steel washer 330 is fixed to the bottom end surface of the rubber ring 300 coaxially with the rubber ring, the top end of the spring 400 is fixed to the steel washer 330, and the bottom end of the spring 400 is fixed to the piston seat 210. By arranging the steel washer 330, the rubber ring 300 has a large action surface under the action of extrusion force, and the deformation amount of the rubber ring 300 is large. Moreover, the extrusion force applied to the rubber ring 300 is more uniform, so that the deformation of the oil storage cavity 310 in the rubber ring 300 is more uniform, and the oil liquid is sprayed more uniformly.

Specifically, in the present embodiment, the upper end cover 130 is provided with an oil filling hole 131 communicating with the oil storage chamber 310, and the one-way check valve 132 is provided in the oil filling hole 131. By arranging the oil filling hole 131, oil can be conveniently added into the oil storage cavity 310. Through the arrangement of the one-way check valve 132, when the spring 400 extrudes the rubber ring 300, the internal pressure inside the oil storage cavity 310 is increased due to the reduction of the space, the one-way check valve 132 is closed under the action of the internal pressure, and under the action of continuous extrusion of the spring 400 on the rubber ring 300, oil inside the oil storage cavity 310 can only be extruded out from the spray needle holes 311, so that the oil is sprayed onto the inner wall of the cylinder body 100; when the spring 400 pulls the rubber ring 300, the internal pressure of the oil storage cavity 310 is reduced due to the increase of the space, and the one-way check valve 132 is opened under the action of the internal and external pressure difference, so that air is supplemented into the oil storage cavity 310, the rubber ring 300 is pulled to deform, the deformation is more labor-saving, and the resistance of the piston in the return stroke is reduced.

Compared with the prior art, the beneficial effects of the utility model reside in that: the whole structure is simple and practical, and the manufacture is easy. In the working process of the piston, oil can be automatically sprayed on the inner wall of the cylinder body 100 for lubrication, and the lubricating effect is very good.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A self-lubricating cylinder comprising: the side walls of the top end and the bottom end of the cylinder body are provided with air guide holes; a piston seat is arranged in the cylinder body in a sliding and sealing manner, and slides between the two air guide holes; a piston rod is coaxially fixed on the piston seat, and the top end of the piston rod penetrates out of the top of the cylinder body; the piston rod is characterized in that a rubber ring is further arranged inside the cylinder body, the rubber ring is sleeved on the piston rod, and the top end face of the rubber ring is fixed with the inner wall of the top end of the cylinder body; the inside of rubber circle is equipped with the oil storage cavity, be equipped with on the week lateral wall of rubber circle a plurality of with the spraying needle hole of oil storage cavity intercommunication, the cover is equipped with on the piston rod and is used for the extrusion the rubber circle takes place to deform and follows fluid spraying needle hole spun spring.

2. The self-lubricating cylinder of claim 1, wherein the block comprises: the lower cylinder body is connected with the upper end cover through threads.

3. The self-lubricating cylinder of claim 1, wherein the oil reservoir cavity is disposed in an annular shape coaxial with the rubber ring.

4. The self-lubricating cylinder of claim 1, wherein the peripheral sidewall ring of the rubber ring is provided with a chamfer, and a plurality of spray pin holes are provided in the chamfer.

5. The self-lubricating cylinder according to any one of claims 1-4, wherein the bottom end face of the rubber ring is provided with a steel washer coaxial therewith, the top end of the spring is fixed with the steel washer, and the bottom end of the spring is fixed with the piston seat.

6. The self-lubricating cylinder of claim 2, wherein the upper end cap is provided with an oil filling hole communicating with the oil storage cavity, and a one-way check valve is provided in the oil filling hole.