CN201077164Y - Pressure control device of hydraulic press - Google Patents
Pressure control device of hydraulic press Download PDFInfo
- Publication number
- CN201077164Y CN201077164Y CNU2007201701752U CN200720170175U CN201077164Y CN 201077164 Y CN201077164 Y CN 201077164Y CN U2007201701752 U CNU2007201701752 U CN U2007201701752U CN 200720170175 U CN200720170175 U CN 200720170175U CN 201077164 Y CN201077164 Y CN 201077164Y
- Authority
- CN
- China
- Prior art keywords
- pressure
- group
- hydraulic
- valve
- hydraulic cylinders
- 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
Links
Images
Landscapes
- Control Of Presses (AREA)
Abstract
The utility model provides a pressure control device for hydraulic press, which comprises a plurality of hydraulic cylinders arranged in an upper beam; wherein the hydraulic cylinders are divided into three groups, and each group has two hydraulic cylinders; the hydraulic cylinders are arranged on the upper beam in equidistance; the piston rod of each hydraulic cylinder is fixedly connected with a slider; the pressure of the hydraulic cylinders is controlled by valves; a main valve is used to control the three group of hydraulic cylinders, and a sub-valve is used to control each group of hydraulic cylinders; the main valve maintains the maximum pressure, and the sub-valves allocate the pressure separately. The utility model has an advantage that as the pressure of each group is controlled separately without interference, the inclined loading proof capacity of the device is effectively enhanced.
Description
Technical field
The utility model relates to a kind of pressure control device, particularly the pressure control device of multicylinder hydraulic machine.
Background technology
At present, along with the continuous expansion of multicylinder hydraulic machine range of application, market constantly increases the demand of multicylinder hydraulic machine, and in the multicylinder hydraulic machine, and its pressure control is particularly important because pressure controlled accurately whether, directly relate to the quality of the product of producing; And the pressure control device of the multicylinder hydraulic machine of prior art generally just adopts a pressure valve that several oil cylinders are controlled, and when producing, realize that pressure distribution is just very difficult.
The utility model content
The utility model provides the pressure control device that can flexibly, accurately control a kind of hydraulic press of a plurality of oil cylinders simultaneously.
In order to solve above technical problem, the pressure control device of a kind of hydraulic press of the present utility model comprises the hydraulic cylinder that is contained on the entablature, the piston rod of described hydraulic cylinder is fixedlyed connected with slide block, described hydraulic cylinder is controlled its pressure by valve, described hydraulic cylinder is divided into three groups, every group two, equidistant respectively being fixed on the entablature; Described three groups of hydraulic cylinders pass through the partial pressure valve combination of a gross pressure valve and every group of independent configuration in each group oil cylinder.
The constant pressure of described gross pressure valve.
The pressure of described partial pressure valve is adjustable.
The advantage of a kind of hydraulic press pressure control device of above structure is: the gross pressure valve keeps maximum pressure constant, and the partial pressure valve disposes separately, and the pressure between every group oil cylinder is controlled separately, and mutually noninterfere can effectively improve the anti-bias load ability of equipment.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a pressure valve fundamental diagram of the present utility model.
The specific embodiment
As shown in Figure 1, described hydraulic cylinder is three groups of A, B, C, and every group is 2 hydraulic cylinders, equidistant respectively being fixed on the entablature 1, and the piston rod 2 of described A, B, three groups of hydraulic cylinders of C is all fixedlyed connected with slide block 3.
The pressure of described A, B, three groups of hydraulic cylinders of C by gross pressure valve 4 and every group separately the partial pressure valve D, E, F of configuration in conjunction with control; The constant pressure of its gross pressure valve 4 is constant, and the pressure of partial pressure valve D, E, F is adjustable; As shown in Figure 2, the maximum pressure of gross pressure valve 4 control A, B, C three group oil cylinders, D in parallel, E, three partial pressure valves of F on the circuit of gross pressure valve 4, each partial pressure valve is controlled a wherein group oil cylinder of A, B, three groups of cylinders of C separately, like this, when guaranteeing maximum pressure, can make the pressure of every group oil cylinder control separately, and can adjust as required.During work, be example with A group hydraulic cylinder, the hydraulic oil that fuel tank is 5 li is extracted out through pump, through check valve 6 guiding, the switch valve 7 of flowing through enters the epicoele 9 that A organizes hydraulic cylinder through check valve 8 again, the pressure that set according to partial pressure valve D this moment makes hydraulic cylinder pass through piston rod 2 and promotes slide block 3, compacted products; The product compacting finishes, and the hydraulic oil that fuel tank is 5 li enters the cavity of resorption 13 of hydraulic cylinder again by another oil circuit process check valve 10, switch valve 11 and safety valve 12, by the pressure of partial pressure valve D, slide block is pushed up back again, finishes the whole operation process.
Embodiment 1:
To need pressure is that No. 3000 hydraulic press is an example, and the maximum pressure of every group of hydraulic cylinder is 1000 tons, and the maximum working pressure (MWP) of three group oil cylinders is 3000 tons, maximum table top 7.5m * 1.2m; Need 1800 tons of pressure now, the required work top 3m * 1.2m of its mould, during use, mould is put in the table top centre position, B group hydraulic cylinder below, the pressure of the partial pressure valve E of B group Huaihe River cylinder pressure is 1000 tons, the pressure of partial pressure valve D, the F of A, C group hydraulic cylinder is 4000 tons respectively, and is during compacted products, not only energy-conservation, also improved the anti-bias load ability of equipment, the machine unbalance loading is little.
Embodiment 2:
To need pressure is that No. 3000 hydraulic press is an example, and the maximum pressure of every group of hydraulic cylinder is 1000 tons, and the maximum working pressure (MWP) of three group oil cylinders is 3000 tons, maximum table top 7.5m * 1.2m; Need 800 tons of pressure now, the required work top 2m * 1.2m of its mould, during use, mould is put in the table top centre position, B group hydraulic cylinder below, the pressure of the partial pressure valve E of B group Huaihe River cylinder pressure is 800 tons, the pressure of partial pressure valve D, the F of A, C group hydraulic cylinder is 0 ton respectively, and is during compacted products, not only energy-conservation, also improved the anti-bias load ability of equipment, the machine unbalance loading is little.
Claims (3)
1. the pressure control device of a hydraulic press, comprise the hydraulic cylinder that is contained on the entablature, the piston rod of described hydraulic cylinder is fixedlyed connected with slide block, described hydraulic cylinder is controlled its pressure by valve, it is characterized in that: described hydraulic cylinder is divided into three groups, every group two, equidistant respectively being fixed on the entablature; Described three groups of hydraulic cylinders pass through the partial pressure valve combination of a gross pressure valve and every group of independent configuration in each group oil cylinder.
2. the pressure control device of a kind of hydraulic press according to claim 1, it is characterized in that: the maximum pressure of described gross pressure valve can be set.
3. the pressure control device of a kind of hydraulic press according to claim 1, it is characterized in that: the pressure of described partial pressure valve is for adjustable separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201701752U CN201077164Y (en) | 2007-08-13 | 2007-08-13 | Pressure control device of hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201701752U CN201077164Y (en) | 2007-08-13 | 2007-08-13 | Pressure control device of hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201077164Y true CN201077164Y (en) | 2008-06-25 |
Family
ID=39569220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201701752U Expired - Fee Related CN201077164Y (en) | 2007-08-13 | 2007-08-13 | Pressure control device of hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201077164Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107545A (en) * | 2010-12-21 | 2011-06-29 | 湖州机床厂有限公司 | Multi-cylinder conversion flexible control system for hydraulic press |
| CN102166832A (en) * | 2011-01-17 | 2011-08-31 | 合肥合锻机床股份有限公司 | Energy-saving and consumption-reducing hydraulic system with multistage pressure control for large hydraulic machine |
| CN103817280A (en) * | 2014-02-14 | 2014-05-28 | 兰州兰石能源装备工程研究院有限公司 | Multi-cylinder hydraulic sheet metal forming 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 |
| CN105235267A (en) * | 2015-11-18 | 2016-01-13 | 合肥合锻机床股份有限公司 | Hydraulic support system of hydraulic press sliding block |
| CN114161767A (en) * | 2021-12-08 | 2022-03-11 | 中国第一重型机械股份公司 | Multi-cylinder grading pressurization method of hydraulic machine |
-
2007
- 2007-08-13 CN CNU2007201701752U patent/CN201077164Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107545A (en) * | 2010-12-21 | 2011-06-29 | 湖州机床厂有限公司 | Multi-cylinder conversion flexible control system for hydraulic press |
| CN102107545B (en) * | 2010-12-21 | 2013-10-02 | 湖州机床厂有限公司 | Multi-cylinder conversion flexible control system for hydraulic press |
| CN102166832A (en) * | 2011-01-17 | 2011-08-31 | 合肥合锻机床股份有限公司 | Energy-saving and consumption-reducing hydraulic system with multistage pressure control for large 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 |
| CN103817280A (en) * | 2014-02-14 | 2014-05-28 | 兰州兰石能源装备工程研究院有限公司 | Multi-cylinder hydraulic sheet metal forming machine |
| CN105235267A (en) * | 2015-11-18 | 2016-01-13 | 合肥合锻机床股份有限公司 | Hydraulic support system of hydraulic press sliding block |
| CN114161767A (en) * | 2021-12-08 | 2022-03-11 | 中国第一重型机械股份公司 | Multi-cylinder grading pressurization method of hydraulic machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201077164Y (en) | Pressure control device of hydraulic press | |
| CN109365593A (en) | A kind of tamping plant of continuous wave steel plate and die mould method | |
| CN207058837U (en) | A kind of energy-efficient concrete block moulding machine | |
| CN101890822B (en) | Synchronous control system for longitudinal beam hydraulic machine | |
| CN103057144A (en) | Large-tonnage hydraulic press with rapid stroke | |
| CN203037342U (en) | Hydraulic type and build-up type force standard machine | |
| CN203981505U (en) | The two synchronous Loading Control System of oil cylinder of horizontal tensile testing machine | |
| CN101691069B (en) | Dual-cylinder dual-frame plate-and-frame hydraulic press with large table surface | |
| CN209669706U (en) | A kind of bridge construction three-dimensional synchronous push equipment | |
| CN107575425B (en) | Multi-daylight press Hydrauservo System with the control of synchronizing speed, position and pressure | |
| CN207954254U (en) | A kind of material distributing machine of adjustable cloth width | |
| CN104175597A (en) | Energy-saving control method for hydraulic unit driving system | |
| CN103072299B (en) | Oil press with mobile cushion blocks | |
| CN206763898U (en) | A kind of hydraulic driven steel die cast device | |
| CN2837384Y (en) | Hydraulic lifting device | |
| CN201745205U (en) | Hydraulic machine with two-way couple leveling function | |
| CN202023788U (en) | Adjustable hydraulic cylinder | |
| CN209698313U (en) | A kind of lower frame of excavator X frame joint welding tooling | |
| CN202937530U (en) | Idle stroke advancing flow distribution system of synthetic diamond press | |
| CN202516913U (en) | Fast hydraulic press for thermal stamping forming of high-strength steel plate | |
| CN203184336U (en) | Roll bending and shifting device of rolling mill | |
| CN202021844U (en) | Numerical control multi-point edge-pressing frame hydraulic machine | |
| CN201261120Y (en) | Double cylinder pulling type horizontal shaft special oil press | |
| CN204773699U (en) | Semi -automatic brake block briquetting machine | |
| CN205949644U (en) | Full -automatic stamping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 Termination date: 20090914 |