CN2031859U - Hydraulic system eliminated hydraulic impaction - Google Patents
Hydraulic system eliminated hydraulic impaction Download PDFInfo
- Publication number
- CN2031859U CN2031859U CN 88205056 CN88205056U CN2031859U CN 2031859 U CN2031859 U CN 2031859U CN 88205056 CN88205056 CN 88205056 CN 88205056 U CN88205056 U CN 88205056U CN 2031859 U CN2031859 U CN 2031859U
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- hydraulic
- pressure hose
- cylinder
- pressure
- directional control
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Abstract
The utility model relates to a hydraulic system which can eliminate a hydraulic impact phenomenon, particularly the hydraulic impact phenomena which is generated by the operation of blanking of a hydraulic press. The utility model adopts the structure that a pressure cylinder and a high-pressure hose are orderly installed between a reversing valve and an operating cylinder. Through the damping action of the pressure cylinder, the high-pressure hose, oil liquor and other systems, hydraulic impact and vibration can be lessened and eliminated. Only the sound of stock rupture is generated in the minute of impact break.
Description
The utility model relates to a kind of hydraulic system that produces the hydraulic shock phenomenon when eliminating the hydraulic shock phenomenon and particularly eliminating the hydraulic press blanking.
At present used hydraulic press unloads power moment at blanking, fluid has generation the free vibration of damping, in the one-period of vibration, show that fluid internal pressure aspect is the conversion of high pressure and negative pressure, show that fluid volume aspect is the conversion of dwindling and increasing, because the character of fluid itself will produce the cavitation and the hydraulic shock oscillation phenomenon of very big harm, therefore, eliminating key that the hydraulic pressure blanking impacts is to eliminate fluid and unloads the generation of negative pressure in the power moment fluid and increase the damping of fluid self vibration and this cooperatively interacting aspect two at blanking.
The purpose of this utility model is exactly that a kind of hydraulic system that can finish the elimination hydraulic shock phenomenon of above-mentioned effect will be provided.
Technical solution of the present utility model is to load onto pressurized cylinder and high pressure hose between solenoid directional control valve and operating cylinder in order.Pressurized cylinder the contact of having isolated pump valve dispatch control system and high voltage terminal (passing through operating cylinder) is set, eliminated the influence of high voltage terminal to it, reduced the oil liquid pressure of itself, eliminated the hydraulic shock of itself.To high-pressure section fluid, pressurized cylinder is a strong damper simultaneously, has reduced the shock and vibration of high-pressure section fluid.High pressure hose is being subjected to high-pressure work fluid to make the volume reduction of the increase of the internal capacity that the time spent produces greater than fluid, make that the long-pending increase of working oil liquid will be remedied by the contraction of high pressure hose when off-load suddenly, will can not make high-pressure work fluid like this in off-load moment generation negative pressure.Thereby under system damping effects such as pressurized cylinder, high pressure hose and fluid itself, hydraulic shock and vibration obtain dyingout.
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing is a hydraulic schematic diagram of the present utility model.
Between the outlet of the big chamber of the pressurized cylinder 8 in the utility model technical solution and solenoid directional control valve 6 low-pressure hose 7 is housed, the loculus end of pressurized cylinder 8 has two interfaces, between another outlet of interface and solenoid directional control valve 6 one-way valve 9 is housed, another interface links with high pressure hose 11 and relief valve 10 in parallel.Between high pressure hose 11 and the operating cylinder 14 one-way valve 12 is housed.In the blanking preparatory stage, make the drift that is contained in the piston rod end in the operating cylinder 14 near to or in contact with workpiece by original hydraulic system 15 and sap cavity or one-way valve 13, electromagnet DT1 energising simultaneously, enter the loculus of pressurized cylinder 8 from the low pressure fluid of fuel tank 1, oil purifier 2, oil pump 3 and one-way valve 4 through solenoid directional control valve 6 and one-way valve 9, the piston of pressurized cylinder 8 is return to put in place and is waited.After blanking preparatory work is finished, by the signalling component sender, electromagnet DT2 energising, low pressure fluid enters the big chamber of pressurized cylinder 8 through low-pressure hose 7, high-voltage oil liquid is pressed to operating cylinder 14 epicoeles from the loculus of pressurized cylinder 8 through high pressure hose 11 and one-way valve 12, reach working pressure, finish blanking cut-out work, the control by position limit switch commutates the oil circuit in the original hydraulic system 15 then, pressure oil enters operating cylinder 14 cavity of resorptions, drift returns, and once circulation is finished in oil pump 13 off-loads.
After hydraulic press was installed above-mentioned hydraulic pressure system, the hydraulic pressure impact phenomenon disappeared, and thrusting moment only has Materials Fracture sound.
Claims (3)
1, a kind of hydraulic system that produces the hydraulic shock phenomenon when eliminating the hydraulic shock phenomenon and particularly eliminating the hydraulic press blanking, comprise fuel tank 1, oil purifier 2, oil pump 3, one-way valve 4, relief valve 5, solenoid directional control valve 6 and operating cylinder 14, it is characterized in that between solenoid directional control valve 6 and operating cylinder 14, being equipped with in order pressurized cylinder 8 and high pressure hose 11.
2, hydraulic system according to claim 1, it is characterized in that between the outlet of the big chamber of pressurized cylinder 8 and solenoid directional control valve 6 low-pressure hose 7 being housed, the loculus end of pressurized cylinder 8 has two interfaces, between another outlet of one of them interface and solenoid directional control valve 6 one-way valve 9 is housed, another interface links with high pressure hose 11 and relief valve 10 in parallel.
3, hydraulic system according to claim 1 and 2 is characterized in that between high pressure hose 11 and the operating cylinder 14 one-way valve 12 being housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88205056 CN2031859U (en) | 1988-05-14 | 1988-05-14 | Hydraulic system eliminated hydraulic impaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88205056 CN2031859U (en) | 1988-05-14 | 1988-05-14 | Hydraulic system eliminated hydraulic impaction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2031859U true CN2031859U (en) | 1989-02-01 |
Family
ID=4839538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88205056 Withdrawn CN2031859U (en) | 1988-05-14 | 1988-05-14 | Hydraulic system eliminated hydraulic impaction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2031859U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337775C (en) * | 2004-10-29 | 2007-09-19 | 中国科学院金属研究所 | Method for producing large-sized blank of wrought magnesium alloys |
| CN100371107C (en) * | 2005-08-08 | 2008-02-27 | 西安重型机械研究所 | Vibrating device hydraulic system |
| CN100427770C (en) * | 2002-05-14 | 2008-10-22 | 伊顿流体动力有限公司 | Hydraulic system comprising pressure-controlled damping means |
| CN102619797A (en) * | 2012-04-10 | 2012-08-01 | 扬州大学 | Double-cylinder synchronous hydraulic circuit with functions of supercharging and eliminating accumulated error |
| CN102725541A (en) * | 2009-11-30 | 2012-10-10 | 卡特彼勒工具有限公司 | Hydraulic device for hydraulic cylinders |
| CN102748453A (en) * | 2012-07-17 | 2012-10-24 | 湖南长重机器股份有限公司 | Hydraulic variable-speed transmission device |
| CN106734460A (en) * | 2016-11-22 | 2017-05-31 | 天津修洁科技有限公司 | Electrichydraulic control press with hydraulically-damped controlling organization |
| CN110043783A (en) * | 2019-04-18 | 2019-07-23 | 黑龙江大学 | It is pressurized controllable type oiling device and correction oil injection method |
| CN111891214A (en) * | 2020-07-14 | 2020-11-06 | 东风华神汽车有限公司 | Control system and method for rotary pump of cargo vehicle |
-
1988
- 1988-05-14 CN CN 88205056 patent/CN2031859U/en not_active Withdrawn
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427770C (en) * | 2002-05-14 | 2008-10-22 | 伊顿流体动力有限公司 | Hydraulic system comprising pressure-controlled damping means |
| CN100337775C (en) * | 2004-10-29 | 2007-09-19 | 中国科学院金属研究所 | Method for producing large-sized blank of wrought magnesium alloys |
| CN100371107C (en) * | 2005-08-08 | 2008-02-27 | 西安重型机械研究所 | Vibrating device hydraulic system |
| US9162297B2 (en) | 2009-11-30 | 2015-10-20 | Caterpillar Work Tools B.V. | Hydraulic device for hydraulic cylinders |
| CN102725541A (en) * | 2009-11-30 | 2012-10-10 | 卡特彼勒工具有限公司 | Hydraulic device for hydraulic cylinders |
| CN102619797B (en) * | 2012-04-10 | 2015-01-07 | 扬州大学 | Double-cylinder synchronous hydraulic circuit with functions of supercharging and eliminating accumulated error |
| CN102619797A (en) * | 2012-04-10 | 2012-08-01 | 扬州大学 | Double-cylinder synchronous hydraulic circuit with functions of supercharging and eliminating accumulated error |
| CN102748453A (en) * | 2012-07-17 | 2012-10-24 | 湖南长重机器股份有限公司 | Hydraulic variable-speed transmission device |
| CN102748453B (en) * | 2012-07-17 | 2015-09-16 | 湖南长重机器股份有限公司 | A kind of hydraulic speed-changing transmission device |
| CN106734460A (en) * | 2016-11-22 | 2017-05-31 | 天津修洁科技有限公司 | Electrichydraulic control press with hydraulically-damped controlling organization |
| CN106734460B (en) * | 2016-11-22 | 2019-05-10 | 南京尚博智能设备有限公司 | Electrichydraulic control press with hydraulically-damped control mechanism |
| CN110043783A (en) * | 2019-04-18 | 2019-07-23 | 黑龙江大学 | It is pressurized controllable type oiling device and correction oil injection method |
| CN110043783B (en) * | 2019-04-18 | 2021-07-13 | 黑龙江大学 | Pressurization controllable oil injection device and method |
| CN111891214A (en) * | 2020-07-14 | 2020-11-06 | 东风华神汽车有限公司 | Control system and method for rotary pump of cargo vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |