CN2422127Y - Fast hydraulic driving device of press based on fast switch valve - Google Patents
Fast hydraulic driving device of press based on fast switch valve Download PDFInfo
- Publication number
- CN2422127Y CN2422127Y CN 00227437 CN00227437U CN2422127Y CN 2422127 Y CN2422127 Y CN 2422127Y CN 00227437 CN00227437 CN 00227437 CN 00227437 U CN00227437 U CN 00227437U CN 2422127 Y CN2422127 Y CN 2422127Y
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- valve
- oil
- hydraulic cylinder
- rapid
- utility
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- 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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Abstract
The utility model relates to a hydraulic driving device used for a pressure machine, which comprises an oil pump, an oil tank, an oil filter, an overflow valve, a reversing valve, a non-return valve, a two-position two-way rapid switch valve, an energy accumulator, etc. The utility model can realize the back connection of a hydraulic cylinder to effectively increase the work processing speed. Besides, the lower cavity of the hydraulic cylinder is directly connected with the energy accumulator and thus the lower cavity of an oil cylinder can always keep the pressure in order to guarantee rapid return response. Meanwhile, the rapid reversing valve is adopted and thus the switching time of an oil circuit is short. In addition, the utility model has simple control circuits, few elements, no leakage and low flow loss. PWM or fuzzy control technology is adopted to realize the accurate control of the work processing and backward travel speed and position of the hydraulic cylinder. The utility model is a rapid hydraulic driving device of the pressure machine based on the rapid switch valve and has the advantages of artful design, rapid response and high speed.
Description
The utility model is a kind of fluid pressure drive device that is used for fast pressure machine, belongs to the innovative technology of forcing press fluid pressure drive device.
The common solenoid directional control valve control commonly used of existing forcing press, its major defect is that speed is slow, and commutating period is long, and complex structure, and used element is many, leaks seriously, and flow loss is big.The fast hydraulic pressure drive unit then need adopt servo valve or proportioning valve, and not only energy consumption is big for it, the cost height, and to the oil contamination sensitivity, also inconvenience realizes computer control.
The purpose of this utility model is to overcome above-mentioned shortcoming and provides a kind of used element few, and response is fast, the speed height, and flow loss is few, and is convenient to realize computer-controlled forcing press fast hydraulic pressure drive unit based on acceleration switching valve.
Hydraulic scheme of the present utility model as shown in drawings, include oil pump P, fuel tank B, oil filter F1, overflow valve V4, rapid reversal valve V1, check valve V6, wherein oil pump P is connected with fuel tank B by oil filter F1, the pressure oil of oil pump P output is connected with the upper oil cavitie of hydraulic cylinder G by rapid reversal valve V1 respectively and is connected with the lower oil cavitie of hydraulic cylinder G by check valve V6, overflow valve V4 is attempted by the exit of oil pump P, and on the hydraulic cylinder, between the lower oil cavitie and be connected to several bi-bit bi-pass acceleration switching valves V, this valve is the logical valve based on the high speed reversal valve, and rapid reversal valve V1 is an acceleration switching valve.
Above-mentioned switch valve V can be provided with 1～3.
The lower oil cavitie of above-mentioned hydraulic cylinder G is connected with accumulator A by stop valve V5.
Describe concrete structure of the present utility model in detail below in conjunction with embodiment:
Embodiment:
Fig. 1 is a hydraulic scheme of the present utility model, include oil pump P, fuel tank B, oil filter F1, overflow valve V4, rapid reversal valve V1, check valve V6, wherein oil pump P is connected with fuel tank B by oil filter F1, the pressure oil of oil pump P output is connected with the upper oil cavitie of hydraulic cylinder G by rapid reversal valve V1 respectively and is connected with the lower oil cavitie of hydraulic cylinder G by check valve V6, overflow valve V4 is attempted by the exit of oil pump P, and on the hydraulic cylinder, between the lower oil cavitie and be connected to two bi-bit bi-pass acceleration switching valve V, be respectively switch valve V2, V3, V2, V3 is respectively large-capacity valve and rill metered valve.When switch valve V2, V3 connect, then realize the differential connection of hydraulic cylinder G, its descending speed is effectively improved, and used Hydraulic Elements are few; In addition, owing to adopt high-speed switch valve as the guide, the control logic valve so response is fast, does not have and leaks, and flow loss is few, and is insensitive to polluting.For realizing the quick rollback of hydraulic cylinder G, the lower oil cavitie of above-mentioned hydraulic cylinder G is connected with accumulator A by stop valve V5.Accumulator A makes the cavity of resorption of hydraulic cylinder G remain pressure, thereby guarantees the quick response of its backhaul.In addition, simple in structure as far as possible for making the utility model, control is convenient, and above-mentioned reversal valve V1 also is the bi-bit bi-pass switch valve, and is the quick valve by the fast valve guide.For the worker who further improves hydraulic cylinder G advances speed with rollback, above-mentioned control valve (V1, V2, V3) directly is installed on the cylinder cap of hydraulic cylinder G, because the distance between hydraulic control component and the executive component shortens as much as possible, thereby has improved the rapidity of system.In addition, oil return line of the present utility model is provided with cooler C, is provided with oil filter F2 between check valve V6 and the oil pump P, and overflow valve V4 is an electromagnetic relief valve.In addition the utility model adopts hydraulic pressure pulsewidth modulation and fuzzy control technology, advances the accurate control with rollback travel speed and position to realize hydraulic cylinder G worker.
The utility model compared with prior art has following outstanding feature and effect:
1, the utility model adopts switch valve control, need not digital-to-analogue conversion and can realize connecting with computer; And pollute insensitive to fluid;
2, the utility model can realize that the hydraulic cylinder worker advances the accurate control with rollback travel speed and position;
3, the utility model response is fast, the speed height;
4, the utility model control oil circuit is simple, and used element is few;
5, the utility model flow loss is few, does not have to leak.
Claims (7)
1, a kind of forcing press fast hydraulic pressure drive unit based on acceleration switching valve, include oil pump P, fuel tank B, oil filter F1, overflow valve V4, rapid reversal valve V1, check valve V6, wherein oil pump P is connected with fuel tank B by oil filter F1, the pressure oil of oil pump P output is connected with the upper oil cavitie of hydraulic cylinder G by rapid reversal valve V1 respectively and is connected with the lower oil cavitie of hydraulic cylinder G by check valve V6, overflow valve V4 is attempted by the exit of oil pump P, it is characterized in that hydraulic cylinder on, between the lower oil cavitie and be connected to several bi-bit bi-pass acceleration switching valves V, and rapid reversal valve V1 is an acceleration switching valve.
2, forcing press fast hydraulic pressure drive unit according to claim 1 is characterized in that above-mentioned switch valve V can be provided with 1～3.
3, forcing press fast hydraulic pressure drive unit according to claim 1 is characterized in that the lower oil cavitie of above-mentioned hydraulic cylinder G is connected with accumulator A by stop valve V5.
4, according to claim 1 or 2 or 3 described forcing press fast hydraulic pressure drive units, it is characterized in that above-mentioned reversal valve V1 is the bi-bit bi-pass acceleration switching valve.
5, forcing press fast hydraulic pressure drive unit according to claim 4 is characterized in that above-mentioned switch valve V can be provided with 2, is respectively switch valve V2, V3.
6, forcing press fast hydraulic pressure drive unit according to claim 5 is characterized in that above-mentioned two switch valve V2, V3 can be respectively large-capacity valve and rill metered valve.
7, forcing press fast hydraulic pressure drive unit according to claim 6 is characterized in that above-mentioned control valve (V1, V2, V3) can directly be installed on the cylinder cap of hydraulic cylinder G.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00227437 CN2422127Y (en) | 2000-03-03 | 2000-03-03 | Fast hydraulic driving device of press based on fast switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00227437 CN2422127Y (en) | 2000-03-03 | 2000-03-03 | Fast hydraulic driving device of press based on fast switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2422127Y true CN2422127Y (en) | 2001-03-07 |
Family
ID=33591075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00227437 Expired - Fee Related CN2422127Y (en) | 2000-03-03 | 2000-03-03 | Fast hydraulic driving device of press based on fast switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2422127Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100423934C (en) * | 2003-05-16 | 2008-10-08 | 博世力士乐股份有限公司 | Drive for a punch or forming machine |
| CN102275330A (en) * | 2011-05-27 | 2011-12-14 | 开平太平洋绝缘材料有限公司 | Improved oil way controller for hydraulic press |
| CN104344007A (en) * | 2013-07-31 | 2015-02-11 | 中国石油天然气股份有限公司 | Quick reversing system |
| CN104552527A (en) * | 2014-12-19 | 2015-04-29 | 广德平江竹业制作有限公司 | Energy-saving plate bending machine for bamboo board |
| CN104728582A (en) * | 2015-03-03 | 2015-06-24 | 江苏扬力集团有限公司 | Hydraulic lubrication synthetic system of closed type four-point mechanical press |
| CN105351263A (en) * | 2015-12-01 | 2016-02-24 | 湖北江山重工有限责任公司 | Differential hydraulic cylinder control loop |
-
2000
- 2000-03-03 CN CN 00227437 patent/CN2422127Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100423934C (en) * | 2003-05-16 | 2008-10-08 | 博世力士乐股份有限公司 | Drive for a punch or forming machine |
| CN102275330A (en) * | 2011-05-27 | 2011-12-14 | 开平太平洋绝缘材料有限公司 | Improved oil way controller for hydraulic press |
| CN104344007A (en) * | 2013-07-31 | 2015-02-11 | 中国石油天然气股份有限公司 | Quick reversing system |
| CN104552527A (en) * | 2014-12-19 | 2015-04-29 | 广德平江竹业制作有限公司 | Energy-saving plate bending machine for bamboo board |
| CN104728582A (en) * | 2015-03-03 | 2015-06-24 | 江苏扬力集团有限公司 | Hydraulic lubrication synthetic system of closed type four-point mechanical press |
| CN105351263A (en) * | 2015-12-01 | 2016-02-24 | 湖北江山重工有限责任公司 | Differential hydraulic cylinder control loop |
| CN105351263B (en) * | 2015-12-01 | 2017-06-13 | 湖北江山重工有限责任公司 | A kind of differential hydro cylinder control loop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |