CN206626041U - A kind of stage variable pressure oil cylinder - Google Patents
A kind of stage variable pressure oil cylinder Download PDFInfo
- Publication number
- CN206626041U CN206626041U CN201720399226.2U CN201720399226U CN206626041U CN 206626041 U CN206626041 U CN 206626041U CN 201720399226 U CN201720399226 U CN 201720399226U CN 206626041 U CN206626041 U CN 206626041U
- Authority
- CN
- China
- Prior art keywords
- oil pocket
- oil
- stage
- cylinder body
- piston bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
A kind of stage variable pressure oil cylinder, becoming cylinder pressure includes one-level cylinder body, first stage piston bar and protective cover cylinder；The first stage piston bar that can be released or reclaim is installed, the interior oil pocket of the one-level cylinder body is separated into the first oil pocket and the second oil pocket by the first stage piston bar in the first-stage cylinder body；The first oil duct for leading to first oil pocket and the second oil duct for leading to second oil pocket are provided with the first-stage cylinder body；Oil pocket is provided with the first stage piston bar, the oil pocket is provided with second piston rod that can be relatively movable, and the oil pocket is separated into the 3rd oil pocket and the 4th oil pocket by the second piston rod.The utility model proposes a kind of stage variable pressure oil cylinder, and the output of multi-stage booster pressure and multilevel decompression pressure is realized by the transformation to first stage piston bar.
Description
Technical field
It the utility model is related to hydraulic cylinder technical field, more particularly to a kind of stage variable pressure oil cylinder.
Background technology
Currently known change Press cylinder device is shown in Fig. 2, is mainly made up of cylinder body 1 and piston rod 2.Piston rod 2 separates oil cylinder
It is bigger than the sectional area of the first oil pocket into the first oil pocket 11 and the second oil pocket 12, the first oil pocket.First oil duct and the second oil duct point
Do not connected with the first oil pocket or the second oil pocket.According to forst law of motion PFirst oil pocket*SFirst oil pocket=PSecond oil pocket*SSecond oil pocket, obtain：When first
When oil pocket is input into pressure oil, the second oil pocket chamber exports boost pressure oil by the second oil duct；When the second oil pocket is input into pressure oil,
First oil pocket passes through the first oil duct output buck pressure oil.Shortcoming is：Pressure and boost pressure are depressured, respectively only first class pressure etc.
Level, it is impossible to meet the demand for control of multistage pressure.
Utility model content
The purpose of this utility model is to propose a kind of stage variable pressure oil cylinder, realized by the transformation to first stage piston bar more
The output of level boost pressure and multilevel decompression pressure.
To use following technical scheme up to this purpose, the utility model：
A kind of stage variable pressure oil cylinder, including one-level cylinder body, first stage piston bar and protective cover cylinder；
The first stage piston bar that can be released or reclaim is installed, the protective cover cylinder is arranged at institute in the first-stage cylinder body
One end of one-level cylinder body is stated, and the rod end of the first stage piston bar stretches out one-level cylinder body, and positioned at the protection of the protective cover cylinder
Intracavitary, the interior oil pocket of the one-level cylinder body are separated into the first oil pocket and the second oil pocket, first oil by the first stage piston bar
The sectional area of chamber is bigger than the sectional area of second oil pocket；
The first oil duct for leading to first oil pocket and lead to second oil pocket the is provided with the first-stage cylinder body
Two oil ducts；
Oil pocket is provided with the first stage piston bar, the oil pocket is provided with fixed second piston rod, the oil
Chamber is separated into the 3rd oil pocket and the 4th oil pocket by the second piston rod, and the sectional area of the 3rd oil pocket is than the 4th oil pocket
Sectional area it is big；
The piston end of the second piston rod is located in the oil pocket, and the rod end of the second piston rod is fixedly connected on institute
One-level cylinder body is stated, the second piston rod is provided with the 3rd oil duct for leading to the 3rd oil pocket and leads to the 4th oil pocket
4th oil duct；
Seal is provided with the contact surface that the Relative friction of the first stage piston bar and the one-level cylinder body slides；
Seal is also equipped with the contact surface that the Relative friction of the first stage piston bar and the second piston rod slides.
Further description, first oil duct are located at the perforate of oil pocket inwall towards the head of the first stage piston bar
Top end face, second oil duct is located at the perforate of oil pocket inwall towards the bottom face on the head of the first stage piston bar.
The beneficial effects of the utility model：Multi-stage booster pressure and multilevel decompression are realized by the transformation to first stage piston bar
The output of pressure, it can be regulated and controled by being provided with multiple variables, there is multistage variable, and the characteristic of variable is consistent, can
Stable carry out modulation.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the present utility model；
Fig. 2 is the structural representation of one embodiment of prior art.
Wherein：
It is one-level cylinder body 1, the first oil pocket 11, the second oil pocket 12, the first oil duct 13, the second oil duct 14, first stage piston bar 2, anti-
Shield cylinder 3, protection chamber 31, oil pocket 4, the 3rd oil pocket 41, the 4th oil pocket 42, the 3rd oil duct 43, the 4th oil duct 44, second piston rod
5；
First oil duct 11 is located at the perforate 110 of oil pocket inwall, the second oil duct 12 is located at the perforate 120 of oil pocket inwall；
Top end face 201, the bottom face 202 on the head of first stage piston bar 2.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
As shown in figure 1, a kind of stage variable pressure oil cylinder, including one-level cylinder body 1, first stage piston bar 2 and protective cover cylinder 3；
The first stage piston bar 2 that can be released or reclaim is installed, the protective cover cylinder 3 is set in the one-level cylinder body 1
In one end of the one-level cylinder body 1, and the rod end of the first stage piston bar 2 stretches out the one-level cylinder body 1, and is located at the protection
In the protection chamber 31 of cover cylinder 3, the interior oil pocket of the one-level cylinder body 1 is separated into the first oil pocket 11 and by the first stage piston bar 2
Two oil pockets 12, the sectional area of first oil pocket 11 are bigger than the sectional area of second oil pocket 12；
The first oil duct 13 for leading to first oil pocket 11 is provided with the one-level cylinder body 1 and leads to second oil pocket
12 the second oil duct 14；
Oil pocket 4 is provided with the first stage piston bar 2, the oil pocket 4 is provided with fixed second piston rod 5, institute
State oil pocket 4 and the 3rd oil pocket 41 and the 4th oil pocket 42, the sectional area ratio of the 3rd oil pocket 41 are separated into by the second piston rod 5
The sectional area of 4th oil pocket 42 is big；
The piston end of the second piston rod 5 is located in the oil pocket 4, and the rod end of the second piston rod 5 is fixedly connected
In the one-level cylinder body 1, the second piston rod 5 is provided with the 3rd oil duct 43 for leading to the 3rd oil pocket 41 and led to described
4th oil duct 44 of the 4th oil pocket 42；
Seal is provided with the contact surface that the Relative friction of the first stage piston bar 2 and the one-level cylinder body 1 slides；
It is also equipped with sealing on the contact surface that the Relative friction of the first stage piston bar 2 and the second piston rod 5 slides
Part.
The application proposes a kind of stage variable pressure oil cylinder, and the output of multi-stage booster pressure and multilevel decompression pressure can be achieved.Will
First stage piston bar 2 as become level oil cylinder oil pocket 4, second piston rod 5 is arranged in oil pocket 4, and set second piston rod as
Fixed part, when the 3rd oil duct 43 or the 4th 44 oil-feed of oil duct, as the carry out activity of first stage piston bar 2 of two level cylinder body, in addition,
The pressure protected in chamber 31 is zero.
Further instruction, when the various combination of the first oil pocket 11, the 4th oil pocket 42 and the 3rd oil pocket 41 is input into pressure oil
When, then the second oil pocket 12 exports different multi-stage booster pressure oil by the second oil duct 14；When the second oil pocket 12, the 4th oil pocket 42
When being input into pressure oil with the various combination of the 3rd oil pocket 41, then the first oil pocket 11 exports different multistage drops by the first oil duct 13
Pressure pressure oil, makes the change cylinder pressure of the application to realize the output of multi-stage booster pressure and multilevel decompression pressure.
Further description, first oil duct 11 are located at the perforate 110 of oil pocket inwall towards the first stage piston bar 2
Head top end face 201, second oil duct 12 is located at the perforate 120 of oil pocket inwall towards the head of the first stage piston bar 2
The bottom face 202 in portion.Perforate 110,120 equal face heads, make fuel-displaced or oil-feed direction consistent with the direction of motion of piston rod,
Oil-feed or the fuel-displaced obstruction to piston rod movement are reduced, makes that there is higher controllability into oil pump capacity and oil pressure, realizes accurate increase
Level or the adjustment that degrades.
Technical principle of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and the limitation to scope of protection of the utility model can not be construed in any way.Based on explanation herein,
Those skilled in the art, which would not require any inventive effort, can associate other embodiments of the present utility model,
These modes are fallen within the scope of protection of the utility model.
Claims (1)
- A kind of 1. stage variable pressure oil cylinder, it is characterised in that：Including one-level cylinder body, first stage piston bar and protective cover cylinder；The first stage piston bar that can be released or reclaim is installed, the protective cover cylinder is arranged at described one in the first-stage cylinder body One end of level cylinder body, and the rod end of the first stage piston bar stretches out the one-level cylinder body, and positioned at the protection of the protective cover cylinder Intracavitary, the interior oil pocket of the one-level cylinder body are separated into the first oil pocket and the second oil pocket, first oil by the first stage piston bar The sectional area of chamber is bigger than the sectional area of second oil pocket；The first oil duct for leading to first oil pocket and the second oil for leading to second oil pocket are provided with the first-stage cylinder body Road；Be provided with oil pocket in the first stage piston bar, the oil pocket is provided with fixed second piston rod, the oil pocket by The second piston rod is separated into the 3rd oil pocket and the 4th oil pocket, sectional area the cutting than the 4th oil pocket of the 3rd oil pocket Area is big；The piston end of the second piston rod is located in the oil pocket, and the rod end of the second piston rod is fixedly connected on described one Level cylinder body, the second piston rod are provided with the 3rd oil duct for leading to the 3rd oil pocket and lead to the 4th of the 4th oil pocket Oil duct；Seal is provided with the contact surface that the Relative friction of the first stage piston bar and the one-level cylinder body slides；Seal is also equipped with the contact surface that the Relative friction of the first stage piston bar and the second piston rod slides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720399226.2U CN206626041U (en) | 2017-04-17 | 2017-04-17 | A kind of stage variable pressure oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720399226.2U CN206626041U (en) | 2017-04-17 | 2017-04-17 | A kind of stage variable pressure oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206626041U true CN206626041U (en) | 2017-11-10 |
Family
ID=60205582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720399226.2U Withdrawn - After Issue CN206626041U (en) | 2017-04-17 | 2017-04-17 | A kind of stage variable pressure oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206626041U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996405A (en) * | 2017-04-17 | 2017-08-01 | 佛山市恒力泰机械有限公司 | A kind of stage variable pressure oil cylinder and its control method |
| CN109681480A (en) * | 2019-01-29 | 2019-04-26 | 中国重型机械研究院股份公司 | A kind of pipe end hydrostatic testing machine booster and method |
| CN110296262A (en) * | 2019-06-27 | 2019-10-01 | 佛山市恒力泰机械有限公司 | A kind of multiple drive power cylinder and a kind of inserted valve of multiple drive power |
-
2017
- 2017-04-17 CN CN201720399226.2U patent/CN206626041U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996405A (en) * | 2017-04-17 | 2017-08-01 | 佛山市恒力泰机械有限公司 | A kind of stage variable pressure oil cylinder and its control method |
| CN106996405B (en) * | 2017-04-17 | 2019-05-10 | 佛山市恒力泰机械有限公司 | A kind of stage variable pressure oil cylinder and its control method |
| CN109681480A (en) * | 2019-01-29 | 2019-04-26 | 中国重型机械研究院股份公司 | A kind of pipe end hydrostatic testing machine booster and method |
| CN109681480B (en) * | 2019-01-29 | 2024-01-23 | 中国重型机械研究院股份公司 | Supercharger and method for pipe end hydrostatic testing machine |
| CN110296262A (en) * | 2019-06-27 | 2019-10-01 | 佛山市恒力泰机械有限公司 | A kind of multiple drive power cylinder and a kind of inserted valve of multiple drive power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171110 Effective date of abandoning: 20190510 |
|
| AV01 | Patent right actively abandoned |