CN105057525A - Hydraulic system for controlling die forging heavy-load workbench - Google Patents
Hydraulic system for controlling die forging heavy-load workbench Download PDFInfo
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- CN105057525A CN105057525A CN201510416912.1A CN201510416912A CN105057525A CN 105057525 A CN105057525 A CN 105057525A CN 201510416912 A CN201510416912 A CN 201510416912A CN 105057525 A CN105057525 A CN 105057525A
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- valve
- die forging
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- hydraulic control
- workbench
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Abstract
The invention relates to a hydraulic system for controlling a die forging heavy-load workbench. The hydraulic system is characterized by comprising a proportioning pump set, a starting-stopping safety valve, a direction control valve group and a workbench pushing oil cylinder which are connected successively through a pipe. The starting-stopping safety valve is composed of a YA11 electromagnetic spill valve. The direction control valve group is composed of a YA21/22 direction valve, a pilot operated check valve, a first spill valve, a first check valve, a second spill valve, a second check vale, a third spill valve and pressure measuring joints. By means of the technical scheme of the hydraulic system, the problems of low speed, high impact and inaccurate stopping position of a heavy press workbench during moving are solved effectively, the installation configuration is reduced, energy is saved, emission is reduced, and the production efficiency is improved.
Description
Technical field
The invention belongs to hydraulic system technical field, particularly relate to a kind of die forging heavy duty work platform hydraulic control system.
Background technology
At present, the mould of the heavy press such as die forging is comparatively large, and the table top of workbench is also comparatively large, and load-bearing reaches 30T-100T, because the power of motor and installing space are restricted, generally selects hydraulic oil cylinder driving.The work top of press is large, the stroke just causing workbench to shift out completely is very long, in order to enhance productivity, needs translational speed to improve, the precision of press itself and the assembly precision of mould require that again press is wanted steadily in moving process, and the position of start and stop is wanted accurately.
Summary of the invention
The present invention provides a kind of workbench speed of service of heavy press that makes fast for solving in known technology the technical problem that exists, accurately can control the die forging heavy duty work platform hydraulic control system of start and stop position simultaneously.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is:
A kind of die forging heavy duty work platform hydraulic control system, it is characterized in that, comprise the proportioning pump pump group, start and stop safety valve, directional control valve group and the workbench that are connected successively by pipeline and promote oil cylinder, described start and stop safety valve group is made up of YA11 electromagnetic relief valve, and described directional control valve group is made up of YA21/22 direction valve and hydraulic control one-way valve, overflow valve, check valve, overflow valve, check valve, overflow valve, pressure measuring tie-in.
The present invention can also adopt following technical measures:
Described pump group is automatically controlled proportioning pump.
Described on off control valve is electromagnetic relief valve.
Described directional control valve is " J " type function.
In described directional control valve group is hydraulic control one-way valve.
Check valve in described directional control valve group is arranged on the rod chamber of oil cylinder and comes between oily P mouth.
The advantage that the present invention has and good effect are: because the present invention adopts technique scheme to efficiently solve, heavy press bed is comparatively slow at moving process medium velocity, impact is large, the coarse problem of stop position, reduce installation configuration, energy-saving and emission-reduction, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is control principle drawing of the present invention.
In figure: 1. proportioning pump pump group, 2. Safety control valve, 3. directional control valve group, 4. workbench drives oil cylinder, 5. hydraulic control one-way valve, 6. overflow valve, 7. direction valve, 8. overflow valve, 9. check valve, 10. overflow valve, 11. pressure measuring tie-ins, 12. pressure measuring tie-ins.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of die forging heavy duty work platform hydraulic control system, comprise the proportioning pump pump group 1, start and stop safety valve 2, directional control valve group 3 and the workbench that are connected successively by pipeline and promote oil cylinder 4, described start and stop safety valve group is made up of YA11 electromagnetic relief valve, and described directional control valve group 3 is made up of YA21/22 direction valve and hydraulic control one-way valve 5, overflow valve 6, check valve 7, overflow valve 8, check valve 9, overflow valve 10, pressure measuring tie-in 11, pressure measuring tie-in 12.
In said structure, described pump group 1 is automatically controlled proportioning pump.
In said structure, described on off control valve 2 is electromagnetic relief valve.
In said structure, described directional control valve 3 is " J " type function.
In said structure, in described directional control valve group 5 is hydraulic control one-way valve.
In said structure, the check valve 7 in described directional control valve group is arranged on the rod chamber of oil cylinder and comes between oily P mouth.
Operation principle of the present invention is: when YA11, YA21, YA22 all must not be electric, the oil that proportioning pump is discharged flows back to fuel tank through electromagnetic relief valve 2, and workbench is static; When YA11, YA22 obtain electric, proportioning pump is next oily enters through directional control valve group, hydraulic control one-way valve 5 rodless cavity that workbench promotes oil cylinder 4, what now workbench promoted that the fluid of the rod chamber of oil cylinder 4 flows back into directional control valve group through check valve 7 carrys out hydraulic fluid port, thus realize differential function, pump delivery and power is reduced from design, energy-saving and emission-reduction, the now effect of overflow valve 10 limits security of system pressure, and overflow valve 8 limits the rod chamber pressure that workbench drives oil cylinder 4.For the rod chamber of oil cylinder and the pressure of rodless cavity fluid close, so the speed that workbench advances is not only fast but also steady; When YA11, YA21 obtain electric, the oil that proportioning pump is discharged enters through directional control valve group, check valve 9 rod chamber that workbench drives oil cylinder 4, workbench drives the fluid in the rodless cavity of oil cylinder 4 to flow back to fuel tank through hydraulic control one-way valve 5, directional control valve group, realizes workbench and returns.Ending in the initial sum moved in and out, the stage, flow realized slow start, slowing down stops by regulating the swash plate angle of proportioning pump to reduce, and to eliminate impact, improved positioning precision.
Present invention efficiently solves heavy press bed comparatively slow at moving process medium velocity, impact large, the coarse problem of stop position, reduce installation configuration, energy-saving and emission-reduction, improve production efficiency.
The above is only to preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (6)
1. a die forging heavy duty work platform hydraulic control system, it is characterized in that, comprise the proportioning pump pump group (1), start and stop safety valve (2), directional control valve group (3) and the workbench that are connected successively by pipeline and promote oil cylinder (4), described start and stop safety valve group is made up of YA11 electromagnetic relief valve, and described directional control valve group (3) is made up of YA21/22 direction valve and hydraulic control one-way valve (5), overflow valve (6), check valve (7), overflow valve (8), check valve (9), overflow valve (10), pressure measuring tie-in (11,12).
2. die forging heavy duty work platform hydraulic control system according to claim 1, it is characterized in that, described pump group (1) is automatically controlled proportioning pump.
3. die forging heavy duty work platform hydraulic control system according to claim 1, it is characterized in that, described on off control valve (2) is electromagnetic relief valve.
4. die forging heavy duty work platform hydraulic control system according to claim 1, is characterized in that, described directional control valve (3) is " J " type function.
5. die forging heavy duty work platform hydraulic control system according to claim 1, it is characterized in that, (5) in described directional control valve group are hydraulic control one-way valve.
6. die forging heavy duty work platform hydraulic control system according to claim 4, is characterized in that, the check valve (7) in described directional control valve group is arranged on the rod chamber of oil cylinder and comes between oily P mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510416912.1A CN105057525A (en) | 2015-07-15 | 2015-07-15 | Hydraulic system for controlling die forging heavy-load workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510416912.1A CN105057525A (en) | 2015-07-15 | 2015-07-15 | Hydraulic system for controlling die forging heavy-load workbench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105057525A true CN105057525A (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510416912.1A Pending CN105057525A (en) | 2015-07-15 | 2015-07-15 | Hydraulic system for controlling die forging heavy-load workbench |
Country Status (1)
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| CN (1) | CN105057525A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604453A (en) * | 2020-05-20 | 2020-09-01 | 天津天锻航空科技有限公司 | Multi-station workbench positioning control system and control method of hydraulic forging press |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012764A (en) * | 2007-02-06 | 2007-08-08 | 浙江大学 | Energy recovery type electric-hydraulic variable-valve control system |
| CN203627367U (en) * | 2013-11-06 | 2014-06-04 | 嘉兴杰顺工业设计有限公司 | Locking loop provided with electromagnetic directional valve |
| CN203766077U (en) * | 2014-01-06 | 2014-08-13 | 湖北合加环境设备有限公司 | Intelligent RDF (Refuse Derived Fuel) annular mould forming machine |
| US20150075640A1 (en) * | 2013-09-13 | 2015-03-19 | Norbert J. Kot | Pneumatic Valve Assembly and Method |
| CN204312429U (en) * | 2014-11-24 | 2015-05-06 | 番禺珠江钢管有限公司 | A kind of hydraulic differential circuit system be made up of screw-in cartridge valve |
-
2015
- 2015-07-15 CN CN201510416912.1A patent/CN105057525A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012764A (en) * | 2007-02-06 | 2007-08-08 | 浙江大学 | Energy recovery type electric-hydraulic variable-valve control system |
| US20150075640A1 (en) * | 2013-09-13 | 2015-03-19 | Norbert J. Kot | Pneumatic Valve Assembly and Method |
| CN203627367U (en) * | 2013-11-06 | 2014-06-04 | 嘉兴杰顺工业设计有限公司 | Locking loop provided with electromagnetic directional valve |
| CN203766077U (en) * | 2014-01-06 | 2014-08-13 | 湖北合加环境设备有限公司 | Intelligent RDF (Refuse Derived Fuel) annular mould forming machine |
| CN204312429U (en) * | 2014-11-24 | 2015-05-06 | 番禺珠江钢管有限公司 | A kind of hydraulic differential circuit system be made up of screw-in cartridge valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604453A (en) * | 2020-05-20 | 2020-09-01 | 天津天锻航空科技有限公司 | Multi-station workbench positioning control system and control method of hydraulic forging press |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |
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| RJ01 | Rejection of invention patent application after publication |