CN202573094U - Synchronous multiple-cylinder control device of hydraulic machine - Google Patents
Synchronous multiple-cylinder control device of hydraulic machine Download PDFInfo
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- CN202573094U CN202573094U CN 201220128570 CN201220128570U CN202573094U CN 202573094 U CN202573094 U CN 202573094U CN 201220128570 CN201220128570 CN 201220128570 CN 201220128570 U CN201220128570 U CN 201220128570U CN 202573094 U CN202573094 U CN 202573094U
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Abstract
The utility model relates to a synchronous multiple-cylinder control device of a hydraulic machine. The synchronous multiple-cylinder control device comprises a plurality of oil cylinders and oil pumps with the quantity corresponding to that of the oil cylinders, wherein manual variable pumps are taken as the oil pumps, a three-position four-way magnetic exchange valve is arranged at an oil outlet of each oil cylinder, two oil outlets of each three-position four-way magnetic exchange valve are respectively connected with a rod cavity and a rodless cavity of each oil cylinder through pipelines, the oil outlets are provided with overlapped overflow valves in parallel, flow rate control valves are arranged on the pipelines in series, and a pressure gage is arranged between each flow rate control valve and each oil cylinder. When synchronous multiple-cylinder control is carried out, preliminary presetting is carried out through the manual variable pumps firstly; and the oil outlets of the oil pumps are provided with the three-position four-way magnetic exchange valves, the oil outlets of the three-position four-way magnetic exchange valves are connected with the overlapped overflow valves in parallel, the flow rate control valves are connected to the pipelines in series, so that when the oil cylinders reach the top, output signals of the pressure gages close to the oil cylinders change, and an electromagnet is electrified to be cut off so as to adjust the speed of the oil cylinders accurately. The synchronous multiple-cylinder control device has the advantages of simple structure, low cost, high control accuracy and convenience in use.
Description
Technical field
The utility model relates to a kind of hydraulic press hydraulic system, particularly a kind of hydraulic press multi-cylinder sync control device.
Background technology
Along with the raising of mechanization degree, structure, the quality of hydraulic system are also had higher requirement.Traditional hydraulic press hydraulic system is when the synchronous operation of control multi-cylinder, and general control accuracy is slightly poor directly through throttle valve adjustment, can't accomplish accurately synchronously, influences equipment stable working property.
Summary of the invention
The technical problem that the utility model will solve provides the high hydraulic press multi-cylinder sync control device of a kind of control accuracy.
For solving the problems of the technologies described above; The technical scheme of the utility model is: a kind of hydraulic press multi-cylinder sync control device; Comprise several oil cylinders and the oil pump corresponding with oil cylinder quantity; Its innovative point is: said oil pump is manual variable pump, and the oil-out of said each oil pump is installed the 3-position 4-way solenoid directional control valve, and two oil-outs of said 3-position 4-way solenoid directional control valve are connected with rodless cavity with the rod chamber of oil cylinder through pipeline respectively; Said oil-out has been in parallel installed with the superposing type overflow valve, is in series with the flow flow speed control valve on the said pipeline; Between said flow flow speed control valve and the oil cylinder Pressure gauge is set.
The advantage of the utility model is: when carrying out the multi-cylinder adjusted in concert, at first carry out preliminary preset through manual variable pump; The oil-out of each oil pump is installed the 3-position 4-way solenoid directional control valve; The oil-out of 3-position 4-way solenoid directional control valve has been in parallel installed with the superposing type overflow valve, is in series with the flow flow speed control valve on the pipeline, after oil cylinder arrives the top or on earth; Pressure gauge output signal near cylinder rod chamber and rodless cavity changes; Through the electromagnet energising of controller control 3-position 4-way solenoid directional control valve, tripping magnet carries out accurate adjustment oil cylinder speed.Simple in structure, cost is low, control accuracy is high, and is and easy to use.
Description of drawings
Fig. 1 is the utility model hydraulic press multi-cylinder sync control device structural representation.
The specific embodiment
As shown in Figure 1; Comprise several oil cylinders 1 and the oil pump 2 corresponding with oil cylinder 1 quantity, oil pump 2 is manual variable pump, and the oil-out of each oil pump 2 is installed 3-position 4-way solenoid directional control valve 3; Two oil-outs of 3-position 4-way solenoid directional control valve 3 are respectively through rod chamber and the rodless cavity of pipeline 4 with oil cylinder 1; Oil-out has been in parallel installed with superposing type overflow valve 6, is in series with flow flow speed control valve 7 on the pipeline, between each flow flow speed control valve 7 and oil cylinder 1, Pressure gauge 5 is set.
Operation principle: when carrying out the multi-cylinder adjusted in concert, at first carry out preliminary preset through manual variable pump; The oil-out of each oil pump 2 is installed 3-position 4-way solenoid directional control valve 3; The oil-out of 3-position 4-way solenoid directional control valve has been in parallel installed with superposing type overflow valve 6, is in series with flow flow speed control valve 7 on the pipeline, through flow flow speed control valve 7 accurate adjustment oil cylinder speed; Pressure gauge 5 output signals near oil cylinder 1 rod chamber and rodless cavity change; Through the electromagnet energising of controller control 3-position 4-way solenoid directional control valve 3, tripping magnet carries out accurate adjustment oil cylinder speed.
Claims (1)
1. hydraulic press multi-cylinder sync control device; Comprise several oil cylinders and the oil pump corresponding with oil cylinder quantity; It is characterized in that: said oil pump is manual variable pump, and the oil-out of said each oil pump is installed the 3-position 4-way solenoid directional control valve, and two oil-outs of said 3-position 4-way solenoid directional control valve are connected with rodless cavity with the rod chamber of oil cylinder through pipeline respectively; Said oil-out has been in parallel installed with the superposing type overflow valve, is in series with the flow flow speed control valve on the said pipeline; Between said flow flow speed control valve and the oil cylinder Pressure gauge is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220128570 CN202573094U (en) | 2012-03-30 | 2012-03-30 | Synchronous multiple-cylinder control device of hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220128570 CN202573094U (en) | 2012-03-30 | 2012-03-30 | Synchronous multiple-cylinder control device of hydraulic machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202573094U true CN202573094U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220128570 Expired - Fee Related CN202573094U (en) | 2012-03-30 | 2012-03-30 | Synchronous multiple-cylinder control device of hydraulic machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN202573094U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302894A (en) * | 2013-06-26 | 2013-09-18 | 合肥海德数控液压设备有限公司 | Electrically-controlled regulating device for underneath blanking stroke of hydraulic machine |
| CN103640248A (en) * | 2013-11-16 | 2014-03-19 | 苏州蓝王机床工具科技有限公司 | Synchronous control system for two hydraulic cylinders of gantry hydraulic machine |
| CN104691011A (en) * | 2013-12-09 | 2015-06-10 | 广东科达洁能股份有限公司 | Hydraulic control device for multi-cylinder linkage of cooking oven molding press |
| CN109130297A (en) * | 2018-09-28 | 2019-01-04 | 南通市腾达锻压机床厂 | The servo-control system of automobile longitudinal girder multi-cylinder multicolumn hydraulic press |
-
2012
- 2012-03-30 CN CN 201220128570 patent/CN202573094U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302894A (en) * | 2013-06-26 | 2013-09-18 | 合肥海德数控液压设备有限公司 | Electrically-controlled regulating device for underneath blanking stroke of hydraulic machine |
| CN103640248A (en) * | 2013-11-16 | 2014-03-19 | 苏州蓝王机床工具科技有限公司 | Synchronous control system for two hydraulic cylinders of gantry hydraulic machine |
| CN104691011A (en) * | 2013-12-09 | 2015-06-10 | 广东科达洁能股份有限公司 | Hydraulic control device for multi-cylinder linkage of cooking oven molding press |
| CN109130297A (en) * | 2018-09-28 | 2019-01-04 | 南通市腾达锻压机床厂 | The servo-control system of automobile longitudinal girder multi-cylinder multicolumn hydraulic press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20200330 |