CN201347913Y - Novel cushion cylinder loop - Google Patents
Novel cushion cylinder loop Download PDFInfo
- Publication number
- CN201347913Y CN201347913Y CNU2008201449145U CN200820144914U CN201347913Y CN 201347913 Y CN201347913 Y CN 201347913Y CN U2008201449145 U CNU2008201449145 U CN U2008201449145U CN 200820144914 U CN200820144914 U CN 200820144914U CN 201347913 Y CN201347913 Y CN 201347913Y
- Authority
- CN
- China
- Prior art keywords
- valve
- way
- hydraulic cylinder
- hydraulic
- cushion dashpot
- 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.)
- Expired - Fee Related
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a novel cushion cylinder loop, which comprises a hydraulic cylinder, a three-position four-way electro-hydraulic reversing valve and a one-way valve. The stockless cavity of the hydraulic cylinder is connected with a balance valve by a pipeline. The other end of the balance valve is connected with the pole cavity of the hydraulic cylinder by the three-position four-way electro-hydraulic reversing valve, and the other end of the three-position four-way electro-hydraulic reversing valve is connected with an oil tank by the one-way valve. The utility model has the advantages of simple structure and reasonable design. The cushion cylinder always has proper back pressure in the running process by installing the balance valve and the three-position four-way electromagnetic valve in a hydraulic loop. The utility model can reduce the running period, improve the work efficiency and ensure the quick and stable running of a workpiece.
Description
Technical field
The utility model relates to the foundry production line field, especially a kind of novel cushion dashpot loop.
Background technique
Motion workpiece in the foundry production line mostly is the step mode of moving greatly and moves, and it is more convenient reliable therefore to adopt hydraulic way to drive.For production line is operated steadily, the mode that we have adopted driving cylinder and cushion dashpot clamping movement workpiece to move.The degree that production line operates steadily depends on whether cushion dashpot has suitable back pressure.The series flow control valve that dams is installed on the loop of existing cushion dashpot usually, thereby makes cushion dashpot have suitable back pressure by it is adjusted.Because this series flow control valve that dams needs workman's manual adjustment, and there is not display list on it, therefore the workman can only adjust series flow control valve by rule of thumb by the motion speed of observing workpiece, it is bigger that this speed regulating method is influenced by personal factor, validity is low, operating time is long, can not guarantee that the back pressure of cushion dashpot is in optimum value, can cause the workpiece operation not steady.Easily oil hydraulic cylinder is caused damage in addition, shorten its working life.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, reasonable in design, can guarantee that cushion dashpot back pressure value is suitable, and can shorten the novel cushion dashpot loop of production time.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of novel cushion dashpot loop, comprise oil hydraulic cylinder, 3-position 4-way electro-hydraulic reversing valve and one-way valve, it is characterized in that: the rodless cavity of oil hydraulic cylinder connects an equilibrium valve by pipeline, the other end of this equilibrium valve is by the rod chamber of 3-position 4-way electro-hydraulic reversing valve connection oil hydraulic cylinder, and the other end of 3-position 4-way electro-hydraulic reversing valve connects fuel tank by one-way valve.
And, a two-position four-way solenoid valve in parallel on the pipeline between the rodless cavity of described oil hydraulic cylinder and the equilibrium valve, the other end of this two-position four-way solenoid valve connects fuel tank.
Advantage of the present utility model and beneficial effect are:
1. the structure that is connected an equilibrium valve between the rodless cavity of oil hydraulic cylinder and 3-position 4-way electro-hydraulic reversing valve is adopted in this novel cushion dashpot loop, has pressure gauge on this equilibrium valve.Therefore by the adjustment of this equilibrium valve, can accurately control, make it reach quantified controlling, thereby guarantee the validity and the stationarity of workpiece operation, lay the foundation for producing good foundry goods to the cushion dashpot back pressure.
2. this novel cushion dashpot loop two-position four-way solenoid valve in parallel on the pipeline between the rodless cavity of oil hydraulic cylinder and the equilibrium valve, the other end connection fuel tank of this two-position four-way solenoid valve.When two-position four-way solenoid valve and equilibrium valve were opened simultaneously, the fluid in the rodless cavity can be got back in the fuel tank fast, therefore can greatly shorten the manufacture cycle, and it is not only fast but also steady that production line is moved.
3. owing to use the cushion dashpot of this oil hydraulic circuit to operate steadily, therefore can reduce the spoilage of cushion dashpot, prolong its working life, reduce the cost of production of enterprise.
4. the utility model is simple in structure, reasonable in design, by equilibrium valve and two-position four-way solenoid valve are installed in oil hydraulic circuit, makes cushion dashpot have suitable back pressure all the time in running.Use this oil hydraulic circuit can shorten the operation period, increase work efficiency, guarantee the not only fast but also steady of workpiece operation, and help improving the quality of workpiece.
Description of drawings
Fig. 1 is a hydraulic schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of novel cushion dashpot loop comprises an oil hydraulic cylinder, a 3-position 4-way electro-hydraulic reversing valve 5 and an one-way valve 6.Innovative point of the present utility model is: the rodless cavity 1 of oil hydraulic cylinder connects an equilibrium valve 3 by pipeline.This equilibrium valve comprises a pressure gauge 9, can observe the back pressure of cushion dashpot intuitively.The other end of equilibrium valve connects the rod chamber 2 of oil hydraulic cylinder by the 3-position 4-way electro-hydraulic reversing valve.The other end of 3-position 4-way electro-hydraulic reversing valve connects fuel tank 7 by one-way valve 6.
In order to accelerate the speed that cushion dashpot retreats, a two-position four-way solenoid valve 8 in parallel on the pipeline between the rodless cavity of oil hydraulic cylinder and the equilibrium valve, the other end of this two-position four-way solenoid valve connects fuel tank.
Working principle of the present utility model:
As shown in Figure 1, the passive rollback of the hydraulic rod of cushion dashpot when production line brings into operation, equilibrium valve and 3-position 4-way electro-hydraulic reversing valve are in state shown in the figure, and promptly equilibrium valve cuts out.
The hydraulic rod of cushion dashpot continues rollback, and oil pressure constantly raises in the rodless cavity, and equilibrium valve is opened when oil pressure reaches a setting value, and fluid enters the rod chamber of cushion dashpot by equilibrium valve and 3-position 4-way electro-hydraulic reversing valve, continues to promote piston and retreats.
When cushion dashpot rollback during to certain position, 1CT and 3CT electromagnet are simultaneously.The fluid of rodless cavity is got back to fuel tank by two-position four-way solenoid valve, 3-position 4-way electro-hydraulic reversing valve and one-way valve from the T mouth of fuel tank respectively, makes the quick rollback of piston rod.
After 2CT electromagnet energising, fluid flows out from the P mouth of fuel tank, and enters the rodless cavity of cushion dashpot by the one-way valve in 3-position 4-way electro-hydraulic reversing valve and the equilibrium valve 4, and the hydraulic rod that promotes cushion dashpot extend out to initial position.Finish a work cycle.
Claims (2)
1. novel cushion dashpot loop, comprise oil hydraulic cylinder, 3-position 4-way electro-hydraulic reversing valve and one-way valve, it is characterized in that: the rodless cavity of oil hydraulic cylinder connects an equilibrium valve by pipeline, the other end of this equilibrium valve is by the rod chamber of 3-position 4-way electro-hydraulic reversing valve connection oil hydraulic cylinder, and the other end of 3-position 4-way electro-hydraulic reversing valve connects fuel tank by one-way valve.
2. novel cushion dashpot according to claim 1 loop is characterized in that: a two-position four-way solenoid valve in parallel on the pipeline between the rodless cavity of described oil hydraulic cylinder and the equilibrium valve, the other end of this two-position four-way solenoid valve connects fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201449145U CN201347913Y (en) | 2008-12-25 | 2008-12-25 | Novel cushion cylinder loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201449145U CN201347913Y (en) | 2008-12-25 | 2008-12-25 | Novel cushion cylinder loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201347913Y true CN201347913Y (en) | 2009-11-18 |
Family
ID=41367383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201449145U Expired - Fee Related CN201347913Y (en) | 2008-12-25 | 2008-12-25 | Novel cushion cylinder loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201347913Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671997A (en) * | 2012-04-12 | 2012-09-19 | 中冶南方工程技术有限公司 | Hydraulic system of anti-tearing device for use in leveling uncoiling |
| CN104632747A (en) * | 2015-01-27 | 2015-05-20 | 西京学院 | Hydraulic balance valve |
| CN105134091A (en) * | 2015-10-15 | 2015-12-09 | 海城市石油机械制造有限公司 | Lifting and lowering buffer control device for derrick of drilling machine and use method thereof |
| CN105156369A (en) * | 2015-09-10 | 2015-12-16 | 苏州慧驰轻合金精密成型科技有限公司 | Novel oscillating cylinder double-back-pressure system of extruding and casting device |
-
2008
- 2008-12-25 CN CNU2008201449145U patent/CN201347913Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671997A (en) * | 2012-04-12 | 2012-09-19 | 中冶南方工程技术有限公司 | Hydraulic system of anti-tearing device for use in leveling uncoiling |
| CN102671997B (en) * | 2012-04-12 | 2014-12-17 | 中冶南方工程技术有限公司 | Hydraulic system of anti-tearing device for use in leveling uncoiling |
| CN104632747A (en) * | 2015-01-27 | 2015-05-20 | 西京学院 | Hydraulic balance valve |
| CN105156369A (en) * | 2015-09-10 | 2015-12-16 | 苏州慧驰轻合金精密成型科技有限公司 | Novel oscillating cylinder double-back-pressure system of extruding and casting device |
| CN105134091A (en) * | 2015-10-15 | 2015-12-09 | 海城市石油机械制造有限公司 | Lifting and lowering buffer control device for derrick of drilling machine and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHIHENG (TIANJIN) INDUSTRY CO., LTD. Free format text: FORMER NAME: HUNTERE (TIANJIN) SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 300308 No. 60 West Central Road, Tianjin Airport Logistics Processing Zone Patentee after: Zhiheng (Tianjin) Industrial Co., Ltd. Address before: 300308, Industrial Zone No. 13-06, Tianjin Airport Logistics Processing Zone Patentee before: Huntere Tianjin Technology Development Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20151225 |
|
| EXPY | Termination of patent right or utility model |