CN103317757A - Hydraulic system for pressing machine - Google Patents
Hydraulic system for pressing machine Download PDFInfo
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- CN103317757A CN103317757A CN 201310185609 CN201310185609A CN103317757A CN 103317757 A CN103317757 A CN 103317757A CN 201310185609 CN201310185609 CN 201310185609 CN 201310185609 A CN201310185609 A CN 201310185609A CN 103317757 A CN103317757 A CN 103317757A
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- valve
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- fuel tank
- pipeline
- hydraulic system
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Abstract
The invention discloses a hydraulic system for a pressing machine. The hydraulic system comprises a feeding oil tank and a discharging oil tank. One side of the feeding oil tank is communicated with one side of the discharging oil tank through a pipe. An air filter and two oil absorption filters are arranged on the discharging oil tank. The two oil absorption filters are connected with a plunger pump and a vane pump through pipes respectively. The other end of the plunger pump is connected with a pressure relay, an overflow valve and one first one-way valve through a pipe successively. The other end of the vane pump is connected with a first solenoid overflow valve, a first pressure gauge and the other first one-way valve through pipes successively. The other ends of the two first one-way valves are connected together and connected with a second solenoid directional valve, an electro-hydraulic directional valve, a second one-way valve and a lower chamber of an oil cylinder successively together. Two ends of the electro-hydraulic directional valve are connected with a third one-way valve and a solenoid ball valve respectively. The other end of the solenoid ball valve is connected with an upper chamber of the oil cylinder through a pipe, and the upper chamber of the oil cylinder is connected with the feeding oil tank through a prefill valve. The hydraulic system is economic and practical, good in utilization effect, long in service life and high in efficiency.
Description
Technical field
The present invention relates generally to the hydraulic system field, relates in particular to a kind of hydraulic system of press.
Background technology
Acting as by changing pressure of hydraulic system increases active force.The quality of a hydraulic system depend on system reasonability, system element performance quality, the pollution protection of system and processing.The domestic hydraulic technique of China improves a lot in recent years, no longer merely uses external hydraulic technique to process, and researches and develops a kind of hydraulic system that domestic press uses that is fit to.
Summary of the invention
The object of the invention is exactly in order to remedy the defective of prior art, a kind of hydraulic system of press to be provided.
The present invention is achieved by the following technical solutions:
A kind of hydraulic system of press, include the oil-feed fuel tank, fuel-displaced fuel tank, the oil-feed fuel tank, one side of fuel-displaced fuel tank is equipped with liquid level gauge, oil-feed fuel tank one side and fuel-displaced fuel tank one side are passed through pipeline communication, it is characterized in that: described fuel-displaced fuel tank is provided with air cleaner, two oil absorption filters, two oil absorption filters are connected with plunger displacement pump by pipeline respectively, vane pump, plunger displacement pump, vane pump is respectively by shaft coupling one, shaft coupling two and main motor, auxiliary-motor connects, the plunger displacement pump other end is connected with pressure switch in turn by pipeline, overflow valve, check valve one, the vane pump other end is connected with electromagnetic relief valve one in turn by pipeline, Pressure gauge one, another check valve one, the other end of two check valves one is connected to a place and Pressure gauge two is installed by pipeline, the other end of two check valves one is connected with solenoid directional control valve two jointly in turn, electro-hydraulic reversing valve, check valve two, the cavity of resorption of oil cylinder, the two ends of electro-hydraulic reversing valve also are connected with respectively check valve three, Solenoid ball valve, the other end of Solenoid ball valve is connected with the epicoele of oil cylinder by pipeline, solenoid directional control valve two also is connected with Superimposed relief valve, and the epicoele of oil cylinder is connected with the oil-feed fuel tank by prefill valve.
The hydraulic system of described a kind of press is characterized in that: the electronic signal end of described check valve two, solenoid directional control valve two, Superimposed relief valve, prefill valve links to each other successively.
Advantage of the present invention is:
Air filter of the present invention, oil absorption filter are to enter fuel tank air, oil filtration device as the hydraulic pressure auxiliary of oil filler, and protection effect is good, and major and minor motor drives respectively plunger displacement pump, vane pump work; The present invention is economical and practical, result of use good, the life-span is long, efficient is high.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
As shown in Figure 1, a kind of hydraulic system of press, include oil-feed fuel tank 24, fuel-displaced fuel tank 2, oil-feed fuel tank 24, one side of fuel-displaced fuel tank 2 is equipped with liquid level gauge 1, oil-feed fuel tank 24 1 sides and fuel-displaced fuel tank 2 one sides are passed through pipeline communication, fuel-displaced fuel tank 2 is provided with air cleaner 3, two oil absorption filters 4, two oil absorption filters 4 are connected with plunger displacement pump 5 by pipeline respectively, vane pump 15, plunger displacement pump 5, vane pump 15 is respectively by shaft coupling 6, shaft coupling 25 and main motor 7, auxiliary-motor 14 connects, plunger displacement pump 5 other ends are connected with pressure switch 8 in turn by pipeline, overflow valve 9, check valve 10, vane pump 15 other ends are connected with electromagnetic relief valve 16 in turn by pipeline, Pressure gauge 17, another check valve 10, the other end of two check valves 10 is connected to a place and Pressure gauge 18 is installed by pipeline, the other end of two check valves 10 is connected with solenoid directional control valve 20 jointly, electro-hydraulic reversing valve 21, check valve 11, the cavity of resorption of oil cylinder 12, the two ends of electro-hydraulic reversing valve 21 also are connected with respectively check valve 19, Solenoid ball valve 22, the other end of Solenoid ball valve 22 is connected by the epicoele of pipeline with oil cylinder 12, solenoid directional control valve 20 also is connected with Superimposed relief valve 23, and the epicoele of oil cylinder 12 is connected with oil-feed fuel tank 24 by prefill valve 13.
The electronic signal end of check valve 11, solenoid directional control valve 20, Superimposed relief valve 23, prefill valve 13 links to each other successively.
Claims (2)
1. the hydraulic system of a press, include the oil-feed fuel tank, fuel-displaced fuel tank, the oil-feed fuel tank, one side of fuel-displaced fuel tank is equipped with liquid level gauge, oil-feed fuel tank one side and fuel-displaced fuel tank one side are passed through pipeline communication, it is characterized in that: described fuel-displaced fuel tank is provided with air cleaner, two oil absorption filters, two oil absorption filters are connected with plunger displacement pump by pipeline respectively, vane pump, plunger displacement pump, vane pump is respectively by shaft coupling one, shaft coupling two and main motor, auxiliary-motor connects, the plunger displacement pump other end is connected with pressure switch in turn by pipeline, overflow valve, check valve one, the vane pump other end is connected with electromagnetic relief valve one in turn by pipeline, Pressure gauge one, another check valve one, the other end of two check valves one is connected to a place and Pressure gauge two is installed by pipeline, the other end of two check valves one is connected with solenoid directional control valve two jointly in turn, electro-hydraulic reversing valve, check valve two, the cavity of resorption of oil cylinder, the two ends of electro-hydraulic reversing valve also are connected with respectively check valve three, Solenoid ball valve, the other end of Solenoid ball valve is connected with the epicoele of oil cylinder by pipeline, solenoid directional control valve two also is connected with Superimposed relief valve, and the epicoele of oil cylinder is connected with the oil-feed fuel tank by prefill valve.
2. the hydraulic system of a kind of press according to claim 1 is characterized in that: the electronic signal end of described check valve two, solenoid directional control valve two, Superimposed relief valve, prefill valve links to each other successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310185609 CN103317757A (en) | 2013-05-20 | 2013-05-20 | Hydraulic system for pressing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310185609 CN103317757A (en) | 2013-05-20 | 2013-05-20 | Hydraulic system for pressing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103317757A true CN103317757A (en) | 2013-09-25 |
Family
ID=49186941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310185609 Pending CN103317757A (en) | 2013-05-20 | 2013-05-20 | Hydraulic system for pressing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103317757A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364164A (en) * | 2017-06-05 | 2017-11-21 | 北京玖鼎力源科技有限公司 | A kind of hydraulic energy-accumulating forcing press |
| CN111070384A (en) * | 2019-10-22 | 2020-04-28 | 泉州鲤城协兴机械制造有限公司 | Novel hydraulic device and static-pressure brick machine |
-
2013
- 2013-05-20 CN CN 201310185609 patent/CN103317757A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364164A (en) * | 2017-06-05 | 2017-11-21 | 北京玖鼎力源科技有限公司 | A kind of hydraulic energy-accumulating forcing press |
| CN107364164B (en) * | 2017-06-05 | 2019-03-05 | 北京玖鼎力源科技有限公司 | A kind of hydraulic energy-accumulating press machine |
| CN111070384A (en) * | 2019-10-22 | 2020-04-28 | 泉州鲤城协兴机械制造有限公司 | Novel hydraulic device and static-pressure brick machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |