CN206297184U - A kind of pressure machine hydraulic system of low-cost energy-saving - Google Patents
A kind of pressure machine hydraulic system of low-cost energy-saving Download PDFInfo
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- CN206297184U CN206297184U CN201621324230.4U CN201621324230U CN206297184U CN 206297184 U CN206297184 U CN 206297184U CN 201621324230 U CN201621324230 U CN 201621324230U CN 206297184 U CN206297184 U CN 206297184U
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- valve
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- pressure
- hydraulic system
- master cylinder
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Abstract
The utility model discloses a kind of pressure machine hydraulic system of low-cost energy-saving,It is related to pressure machine hydraulic system technical field,Including fuel tank,The unidirectional variable pump of high pressure,Two position, three-way electromagnetic change valve,Electromagnetism supports valve,Auxiliary oil cylinder,Master cylinder,Replenishing valve and low pressure small displacement constant displacement pump,The unidirectional variable pump of high pressure is connected by filter with fuel tank,The oil-out of the unidirectional variable pump of high pressure is connected with two position, three-way electromagnetic change valve,Two position, three-way electromagnetic change valve leads up to electromagnetism support valve and is connected with auxiliary oil cylinder,Two position, three-way electromagnetic change valve separately leads up to oil pipe and is connected with master cylinder,The first check valve is provided between two position, three-way electromagnetic change valve and master cylinder,Pressure gauge is provided between master cylinder and the first check valve,Overflow valve is provided between first check valve and two position, three-way electromagnetic change valve,The epicoele of master cylinder is connected by replenishing valve with fuel tank,Replenishing valve is connected with low pressure small displacement constant displacement pump.The pressure machine hydraulic system of this low-cost energy-saving, low cost, energy consumption is low.
Description
Technical field
The utility model belongs to pressure machine hydraulic system technical field, and in particular to a kind of forcing press liquid of low-cost energy-saving
Pressure system.
Background technology
More conventional a kind of production equipment when forcing press is punching press, because the structure of stamped workpieces in recent years is more and more multiple
Miscellaneous, the stamping mold of workpiece is also become increasingly complex, and traditional forcing press is run using two-way cylinder, two-way cylinder
Than being more expensive to manufacture for one-way cylinder, the oil sealing in two-way cylinder is because dual force is very easy to damage and changes tired
Difficulty, maintenance cost is high, meanwhile, when the descending action of pressing plate, could just by heavy-duty motor one huge discharge oil pump of drive
Often operation, high energy consumption.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and the utility model provides a kind of low-cost energy-saving
Pressure machine hydraulic system, simple structure is easy to use, safeguards simple, and low cost, energy consumption is low.
The utility model solves its technical problem and takes following technical scheme to realize：
The pressure machine hydraulic system of a kind of low-cost energy-saving, it is characterised in that including fuel tank, the unidirectional variable pump of high pressure, two
Position three-way solenoid valve, electromagnetism support valve, auxiliary oil cylinder, master cylinder, replenishing valve and low pressure small displacement constant displacement pump, the high pressure list
It is connected with the fuel tank by filter to variable pump, the oil-out of the unidirectional variable pump of high pressure passes through oil pipe with described two
Three-way solenoid valve is connected, and the two position, three-way electromagnetic change valve leads up to electromagnetism support valve and the auxiliary oil cylinder
Connection, the two position, three-way electromagnetic change valve separately leads up to oil pipe and is connected with the master cylinder, and the two-position three-way electromagnetic is changed
To the first check valve is provided between valve and the master cylinder, pressure gauge is provided between the master cylinder and first check valve,
Be provided with overflow valve between first check valve and the two position, three-way electromagnetic change valve, the oil-out of the overflow valve with it is described
Fuel tank is connected, and the epicoele of the master cylinder is connected by replenishing valve with the fuel tank, the replenishing valve and the low pressure small displacement
Constant displacement pump is connected, and the oil inlet of the low pressure small displacement constant displacement pump is connected with the fuel tank.
Further, the replenishing valve is pilot-operated type replenishing valve.
Further, the overflow valve is pilot operated compound relief valve.
Further, the master cylinder is descending large diameter single action oil cylinder.
Further, the auxiliary oil cylinder is lifting minor diameter one-way cylinder.
Further, the electromagnetism support valve is made up of the second check valve, safety valve, electromagnetism stop valve and choke valve.
The beneficial effects of the utility model are：
1. oil cylinder of the present utility model is divided to two groups of major-minor, and master cylinder is descending large diameter single action oil cylinder, and auxiliary oil cylinder is to carry
Minor diameter one-way cylinder is risen, the use of one-way cylinder has saved manufacturing cost than two-way cylinder in conventional press, together
When, the oil sealing of two-way cylinder is damaged because double acting stress is very easy, and changes difficult, and maintenance cost is high, and single-acting
Oil cylinder is hardly damaged, and maintenance cost is low.
2. the epicoele of master cylinder of the present utility model is connected by replenishing valve with fuel tank, replenishing valve is opened, by master cylinder
The weight of piston and the own wt of pressing plate can complete closed action, be then to be capable of achieving to add by low pressure small displacement constant displacement pump
Journey is pressed through, energy consumption is low.
3. the utility model is provided with electromagnetism support valve, electromagnetism support between two position, three-way electromagnetic change valve and auxiliary oil cylinder
Valve support load for a long time will not also sink, thus safe and reliable, when step-down operation, only make the electromagnet in electromagnetism stop valve
It is powered, electromagnetism support valve realizes the lifting of workbench together with one-way cylinder and oil pump, simple structure is easy to use,
Safeguard simple, low cost, energy consumption is low.
Brief description of the drawings
Fig. 1 is hydraulic scheme of the present utility model.
In figure：1 is that electromagnetism supports valve；2 is auxiliary oil cylinder；3 is replenishing valve；4 is master cylinder；5 is low pressure small displacement constant displacement pump；
6 is the unidirectional variable pump of high pressure；7 is fuel tank；8 is filter；9 is two position, three-way electromagnetic change valve；10 is overflow valve；11 is first
Check valve；12 is pressure gauge；13 is the second check valve；14 is safety valve；15 is choke valve；16 is electromagnetism stop valve.
Specific embodiment
The utility model is further described below in conjunction with accompanying drawing：
In Fig. 1, a kind of pressure machine hydraulic system of low-cost energy-saving, including the unidirectional variable pump of fuel tank 7, high pressure 6, two three
Electric change valve 9, electromagnetism support valve 1, auxiliary oil cylinder 2, master cylinder 4, replenishing valve 3 and low pressure small displacement constant displacement pump 5, the high pressure
Unidirectional variable pump 6 is connected by filter 8 with the fuel tank 7, and the oil-out of the unidirectional variable pump 6 of high pressure passes through oil pipe and institute
Two position, three-way electromagnetic change valve 9 is stated to be connected, the two position, three-way electromagnetic change valve 9 lead up to electromagnetism support valve 1 with
The auxiliary oil cylinder 2 is connected, and the two position, three-way electromagnetic change valve 9 separately leads up to oil pipe and is connected with the master cylinder 4, and described two
The first check valve 11 is provided between position three-way solenoid valve 9 and the master cylinder 4, the master cylinder 4 is unidirectional with described first
Pressure gauge 12 is provided between valve 11, overflow valve is provided between first check valve 11 and the two position, three-way electromagnetic change valve 9
10, the oil-out of the overflow valve 10 is connected with the fuel tank 7, and the epicoele of the master cylinder 4 passes through replenishing valve 3 and the fuel tank
7 be connected, the replenishing valve 3 is connected with the low pressure small displacement constant displacement pump 5, the oil inlet of the low pressure small displacement constant displacement pump 5 and
The fuel tank 7 is connected.
In the pressure machine hydraulic system of above-mentioned low-cost energy-saving, it should be pointed out that the replenishing valve 3 fills for pilot-operated type
Liquid valve.
In the pressure machine hydraulic system of above-mentioned low-cost energy-saving, it should be pointed out that the overflow valve 10 is pilot-operated type
Overflow valve.
In the pressure machine hydraulic system of above-mentioned low-cost energy-saving, it should be pointed out that the master cylinder 4 is descending big straight
Footpath one-way cylinder.
In the pressure machine hydraulic system of above-mentioned low-cost energy-saving, it should be pointed out that the auxiliary oil cylinder 2 is small straight for lifting
Footpath one-way cylinder.
In the pressure machine hydraulic system of above-mentioned low-cost energy-saving, it should be pointed out that the electromagnetism supports valve 1 by second
Check valve 13, safety valve 14, electromagnetism stop valve 16 and choke valve 15 are constituted.
Operation principle of the present utility model is as follows:
The pressure machine hydraulic system of the low-cost energy-saving that the utility model is provided, when workbench needs to rise, then makes two
The right position of position three-way solenoid valve 9 is in running order, and the fluid in fuel tank 7 is passed through in the presence of the unidirectional variable pump 6 of high pressure
Filter 8 enters two position, three-way electromagnetic change valve 9 after filtering, and the cavity of resorption of auxiliary oil cylinder 2, work are then entered through electromagnetism support valve 1
Platform rises；When workbench needs to decline, still make the right position of two position, three-way electromagnetic change valve 9 in running order, now make electricity
Electromagnet in magnetic support valve 1 is powered, and the right position of electromagnetism stop valve 16 is in running order, and the fluid in auxiliary oil cylinder 2 is through electromagnetism
Support valve 1 flows back to fuel tank 7；When the position of workbench keeps constant, then the left position of two position, three-way electromagnetic change valve 9 is set to be in work
Make state, now stop the cavity of resorption fuel feeding to auxiliary oil cylinder 2, in the presence of electromagnetism support valve 1, the workbench can be supported for a long time
Load will not also sink, safe and reliable.When closure that pressing plate is descending is needed, replenishing valve 3 is opened, fluid is quickly entered by fuel tank 7
Enter the epicoele of master cylinder 4, while the own wt of the weight and pressing plate by the piston of master cylinder 4 can complete closed action, when
After pressing plate is closed in place, pressurizeed by low pressure small displacement constant displacement pump 5, reached the operating pressure of design, overflow valve 10
Play a part of overload protection on oil circuit, make system pressure no more than limit value, pressure gauge 12 can be carried out to the pressure of system
Display.
In sum, the utility model provides a kind of pressure machine hydraulic system of low-cost energy-saving, simple structure, user
Just, safeguard simple, low cost, energy consumption is low.
Above example has been described in detail to the utility model, but the content is only preferable reality of the present utility model
Apply example, it is impossible to be considered as limiting practical range of the present utility model.All equalizations made according to present utility model application scope
Change and improvement etc., all should still belong within patent covering scope of the present utility model.
Claims (6)
1. the pressure machine hydraulic system of a kind of low-cost energy-saving, it is characterised in that including fuel tank, the unidirectional variable pump of high pressure, two
Three-way solenoid valve, electromagnetism support valve, auxiliary oil cylinder, master cylinder, replenishing valve and low pressure small displacement constant displacement pump, the high pressure are unidirectional
Variable pump is connected by filter with the fuel tank, and the oil-out of the unidirectional variable pump of high pressure passes through oil pipe with described two three
Electric change valve is connected, and the two position, three-way electromagnetic change valve leads up to the electromagnetism support valve and connects with the auxiliary oil cylinder
Connect, the two position, three-way electromagnetic change valve separately leads up to oil pipe and is connected with the master cylinder, the two-position three-way electromagnetic commutation
The first check valve is provided between valve and the master cylinder, pressure gauge is provided between the master cylinder and first check valve, institute
State and overflow valve is provided between the first check valve and the two position, three-way electromagnetic change valve, the oil-out of the overflow valve and the oil
Case is connected, and the epicoele of the master cylinder is connected by replenishing valve with the fuel tank, and the replenishing valve is fixed with the low pressure small displacement
Amount pump is connected, and the oil inlet of the low pressure small displacement constant displacement pump is connected with the fuel tank.
2. the pressure machine hydraulic system of low-cost energy-saving according to claim 1, it is characterised in that the replenishing valve is for first
Conduction replenishing valve.
3. the pressure machine hydraulic system of low-cost energy-saving according to claim 1, it is characterised in that the overflow valve is for first
Conduction overflow valve.
4. the pressure machine hydraulic system of low-cost energy-saving according to claim 1, it is characterised in that under the master cylinder is
Row large diameter single action oil cylinder.
5. the pressure machine hydraulic system of low-cost energy-saving according to claim 1, it is characterised in that the auxiliary oil cylinder is to carry
Rise minor diameter one-way cylinder.
6. the pressure machine hydraulic system of low-cost energy-saving according to claim 1, it is characterised in that the electromagnetism supports valve
It is made up of the second check valve, safety valve, electromagnetism stop valve and choke valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621324230.4U CN206297184U (en) | 2016-12-06 | 2016-12-06 | A kind of pressure machine hydraulic system of low-cost energy-saving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621324230.4U CN206297184U (en) | 2016-12-06 | 2016-12-06 | A kind of pressure machine hydraulic system of low-cost energy-saving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206297184U true CN206297184U (en) | 2017-07-04 |
Family
ID=59212985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621324230.4U Active CN206297184U (en) | 2016-12-06 | 2016-12-06 | A kind of pressure machine hydraulic system of low-cost energy-saving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206297184U (en) |
-
2016
- 2016-12-06 CN CN201621324230.4U patent/CN206297184U/en active Active
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