CN206785773U - A kind of pressurization speed governing oil circuit of hydraulic press - Google Patents
A kind of pressurization speed governing oil circuit of hydraulic press Download PDFInfo
- Publication number
- CN206785773U CN206785773U CN201720667382.2U CN201720667382U CN206785773U CN 206785773 U CN206785773 U CN 206785773U CN 201720667382 U CN201720667382 U CN 201720667382U CN 206785773 U CN206785773 U CN 206785773U
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- Prior art keywords
- valve
- pipeline
- speed governing
- speed
- speed regulation
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Abstract
A kind of pressurization speed governing oil circuit of hydraulic press, the speed governing valve group is connected in parallel by multiple speed regulation throttle valves to be formed, and the open degree of the speed regulation throttle valve is fixed value；The function valve group includes valve one, valve two, valve three, valve four and valve five；First sys node of multiple speed regulation throttle valves is connected with the valve three and valve five respectively；The valve three is connected with valve two by the first pipeline, and the valve two is connected with the oil cylinder rodless cavity of hydraulic actuating mechanism by the second pipeline；The valve one is connected by pipeline with second pipeline and fuel tank respectively；The valve five is connected by the rodless cavity of pipeline and piston supercharger, and the rod chamber of the piston supercharger is connected by pipeline with first pipeline；The valve four is connected by pipeline with the rodless cavity and fuel tank of the piston supercharger respectively.The regulation of pressing speed realized by control program, can in console on-line setup, specifically each speed regulation throttle valve is turned on and off, automaticity is high, improve service efficiency.
Description
Technical field
The utility model belongs to technical field of hydraulic, and in particular to a kind of pressurization speed governing oil circuit of hydraulic press.
Background technology
The pressurized oil lines of currently known hydraulic press are mainly made up of two parts, function valve group and flow speed control valve (group).Work(
Energy valve group act as selecting pressurization oil duct path according to pressure rating, and flow speed control valve (group) act as controlling pressing speed.And speed governing
The control oil circuit of valve (group), it is generally divided into common inserted valve mode and proportional cartridge valve mode.
Common inserted valve pressing speed control oil circuit, is characterized in the general of one special adjustable opening of every stage pressure setting
Logical inserted valve carries out speed control, for example when equipment needs to realize three kinds of low pressure, medium and high pressure different pressures grades, then needs
Common inserted valve corresponding to three is set to be respectively controlled.In addition, if desired the pressing speed of certain stage pressure is adjusted
When, then need to manually adjust the adjusting screw rod of inserted valve, change the aperture of inserted valve, to change flow velocity.The installation site one of valve
As it is higher from the ground, it is not convenient to manually adjust operation, labor intensity and dangerous also larger, typically also needs to shutdown operation.
Proportional cartridge valve pressing speed controls oil circuit, be characterized in can by the aperture of electric programmed instruction control valve, with
Realize the control of pressing speed.Different pressure ratings, can the different valve opening of on-line setup, to control pressing speed.It is at different levels
Stress control shares same proportional cartridge valve.
Shortcoming is, the pressurized oil lines of common inserted valve control, it is necessary to adjust when controlling the pressing speed of different pressures grade
Different valves is saved, and is artificial mechanical adjustment, operation is comparatively laborious, and labor intensity is big.The pressurization of proportional cartridge valve control
Oil circuit, it is high to the hydraulic environment requirement that uses, it is necessary to higher use cost and maintenance cost, and fault rate is also higher.
Utility model content
For drawbacks described above, the purpose of this utility model is the pressurization speed governing oil circuit for providing a kind of hydraulic press, with energy
Enough realize multistage pressuring machine speed on-line control function, and cost is cheap, fault rate is low, using and it is easy to maintenance simple.
To use following technical scheme up to this purpose, the utility model：
A kind of pressurization speed governing oil circuit of hydraulic press, including the speed governing valve group and function valve group set gradually on pipeline, pressure
Power oil passes through the speed governing valve group and function valve group successively, and the function valve group is connected with hydraulic actuating mechanism；The flow speed control valve
Group is connected in parallel by multiple speed regulation throttle valves and formed, and the open degree of the speed regulation throttle valve is fixed value；
The function valve group includes valve one, valve two, valve three, valve four and valve five；
First sys node of multiple speed regulation throttle valves is connected with the valve three and valve five respectively；
The valve three is connected with valve two by the first pipeline, and the oil cylinder rodless cavity of the valve two and hydraulic actuating mechanism passes through
Second pipeline connects；The valve one is connected by pipeline with second pipeline and fuel tank respectively；
The valve five is connected by the rodless cavity of pipeline and piston supercharger, and the rod chamber of the piston supercharger passes through pipe
Road is connected with first pipeline；The valve four is connected by pipeline with the rodless cavity and fuel tank of the piston supercharger respectively
Connect.
Preferably, speed governing valve group and function valve group are integrally disposed on same valve block.
Preferably, the open degree of each speed regulation throttle valve is different.
Preferably, the speed regulation throttle valve is guide's inserted valve.
Preferably, the speed regulation throttle valve includes the magnetic valve and flow control mechanism being connected in series, the flow control
Mechanism is throttle orifice or choke valve or flow control valve.
Preferably, the quantity of speed regulation throttle valve is N number of (N >=3) in the speed governing valve group, wherein,
M (1≤M ＜ N) described speed regulation throttle valves are guide's inserted valve；
N-M (1≤N-M ＜ N) described speed regulation throttle valves are the magnetic valve and flow control mechanism being connected in series, the stream
It is throttle orifice or choke valve or flow control valve to measure controlling organization.
The beneficial effects of the utility model：Speed regulation throttle valve quantity is 3 or more than 3, and each speed regulation throttle valve has not
Same flow area, i.e., through-flow flow are different.Multiple speed regulation throttle valves are connected after being connected in parallel with the function valve group, are made
Used time, while the speed regulation throttle valve opened can be one or more, if speed regulation throttle valve quantity is N, combined flow has 2N-1
Kind, the bigger speed of N, which was adjusted, gets over smoothly.By opening using the speed regulation throttle valve of varying number to obtain different confessions simultaneously
The pipeline that oil is converged and flow is flowed between function valve group, to realize the control of the pressing speed of hydraulic actuating mechanism.Pressing speed
Regulation realized by control program, can in console on-line setup, specifically each speed regulation throttle valve is turned on and off, automatically
Change degree is high, improves service efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment in the utility model；
Fig. 2 is the structural representation of second embodiment of speed governing valve group in the utility model；
Fig. 3 is the structural representation of the 3rd embodiment of speed governing valve group in the utility model；
Fig. 4 is the structural representation of one embodiment of function valve group in the utility model.
Wherein：Speed governing valve group 1, speed regulation throttle valve 11, guide's inserted valve 111, magnetic valve 112, flow control mechanism 113,
First sys node 12；
Function valve group 2, valve 1, valve 2 22, valve 3 23, valve 4 24, valve 5 25；
Hydraulic actuating mechanism 3, oil cylinder rodless cavity 31, piston rod 32；First pipeline 41, the second pipeline 42；Fuel tank 5；Piston
Booster 6.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
A kind of pressurization speed governing oil circuit of hydraulic press, including the speed governing valve group 1 and function valve group 2 set gradually on pipeline,
Pressure oil passes through the speed governing valve group 1 and function valve group 2 successively, and the function valve group 2 is connected with hydraulic actuating mechanism 3；It is described
Speed governing valve group 1 is connected in parallel by multiple speed regulation throttle valves 11 and formed, and the open degree of the speed regulation throttle valve 11 is fixed value, its
In, the open degree of each speed regulation throttle valve 11 can be with different, can also be identical；
As shown in Figures 1 and 2, the function valve group 2 includes valve 1, valve 2 22, valve 3 23, valve 4 24 and valve 5 25；
First sys node 12 of multiple speed regulation throttle valves 11 is connected with the valve 3 23 and valve 5 25 respectively；
The valve 3 23 is connected with valve 2 22 by the first pipeline 41, the oil cylinder of the valve 2 22 and hydraulic actuating mechanism 3
Rodless cavity 31 is connected by the second pipeline 42；The valve 1 is connected by pipeline with second pipeline 42 and fuel tank 5 respectively；
The valve 5 25 is connected by pipeline with the rodless cavity of the piston supercharger 6, and the piston supercharger 6 has bar
Chamber is connected by pipeline with first pipeline 41；The valve 4 24 is respectively by pipeline and the piston supercharger 6 without bar
Chamber is connected with fuel tank 5.
As shown in figure 1, in the present embodiment, the quantity of speed regulation throttle valve 11 is 3 or more than 3, and each speed regulation throttle valve 11 has
There is different flow areas, i.e., through-flow flow is different.Multiple speed regulation throttle valves 11 are connected in parallel the rear and function valve group 2
Connection, in use, the speed regulation throttle valve 11 opened simultaneously can be one or more, if the quantity of speed regulation throttle valve 11 is N, group
Interflow amount has 2N-1Kind, the bigger speed of N, which was adjusted, gets over smoothly.By opening the speed regulation throttle valve 11 using varying number simultaneously
To obtain the pipeline that different fuel feeding is converged and flow is flowed between function valve group 2, to realize the pressing speed of hydraulic actuating mechanism 3
Control.The regulation of pressing speed realized by control program, can be in the specific each speed regulation throttle valve 11 of console on-line setup
Be turned on and off, automaticity is high, improves service efficiency.
It is required that when the pressing speed of hydraulic actuating mechanism 3 is middle low speed grade, opening section speed regulation throttle valve 11 is fitted
The fuel feeding remittance of pressure rating requirement and flow (quantity of speed regulation throttle valve 11 of unlatching is more, and fuel feeding converges and flow is bigger) are answered, and
The pipeline flowed between function valve group 2, now valve 1, valve 4 24 and the closing of valve 5 25, valve 2 22 and the opening of valve 3 23, fuel feeding
The simultaneously flow that converges enters the oil of the hydraulic actuating mechanism 3 along pipeline after valve 3 23, the pipeline 42 of valve 2 22 and second successively
Cylinder rodless cavity 31, due to fuel feeding remittance and flow is above being adjusted in speed governing valve group 1, i.e., fuel feeding is converged and flow enters institute
The speed for stating the oil cylinder rodless cavity 31 of hydraulic actuating mechanism 3 is controlled, then the pressure oil in oil cylinder rodless cavity 31, which promotes, lives
The speed of stopper rod 32 to realize corresponding control (speed that the pressure of fluid is established, oil pressure establish it is more fast more, oil pressure passes through work
Stopper rod passes to workpiece).After the completion of once pressurizeing, valve 2 22, valve 3 23, valve 4 24 and valve 5 25 are turned off, and valve 1 is opened,
Pressure oil in oil cylinder rodless cavity 31 is flowed back in fuel tank 5 completely by the second pipeline 42 after valve 1 along pipeline, is waited
Use next time.
It is required that when the pressing speed of hydraulic actuating mechanism 3 is high pressure level, it is more when opening than mesolow power grade
Speed regulating choke valve 11, the fuel feeding for obtaining adapting to pressure rating requirement converges and flow, and the pipe flowed between duty valve group 2
Road, now valve 1, valve 4 24 and the closing of valve 5 25, valve 2 22, the opening of valve 3 23, fuel feeding converges and flow passes through successively along pipeline
Cross after valve 3 23, the pipeline 42 of valve 2 22 and second and enter the oil cylinder rodless cavity 31 of the hydraulic actuating mechanism 3, treat oil cylinder rodless cavity
When pressure needs further to improve in 31, valve 3 23 is closed, and valve 5 25 is opened, and fuel feeding converges and flow passes through valve 5 25 along pipeline
Enter the rodless cavity of the piston supercharger 6 afterwards, and with the rodless cavity of piston supercharger 6 pressure oil increase, piston increases
The piston rod of depressor 6 promotes to the left, so as to which the pressure oil in the rod chamber of piston supercharger 6 be managed along pipeline push-in first
In road 41, further increase the pressure in pipeline, pressure oil after the pipeline 42 of valve 2 22 and second, is held into the hydraulic pressure again
The speed of the oil cylinder rodless cavity 31 of row mechanism 3 is controlled, then the pressure oil in oil cylinder rodless cavity 31 promotes piston rod 32
Speed will realize corresponding control.After the completion of once pressurizeing, valve 2 22, valve 3 23, valve 4 24 and valve 5 25 are turned off, valve one
21 open, and the pressure oil in oil cylinder rodless cavity 31 flows back to fuel tank 5 completely after valve 1 by the second pipeline 42 along pipeline
It is interior, wait use next time.When equipment process rotation, valve 1, valve 2 22 and valve 5 25 are turned off, valve 3 23 and valve
4 24 are opened, and pressure oil flows into from front end by speed governing valve group 1, and piston supercharger 6 is flowed into by pipeline after valve 3 23
Rod chamber, as pressure oil increases in the rod chamber of piston supercharger 6, the piston rod of piston supercharger 6 is promoted to move right,
Pressure oil in the rodless cavity of piston supercharger 6 is flowed into fuel tank along pipeline, waits use next time.
Embodiment 1
As shown in Fig. 2 the speed regulation throttle valve 11 is guide's inserted valve 111.
Guide's inserted valve 111 can be used for the supply of big flow pressure oil, i.e., by the solenoid-driven inserted valve of guide, with
Realize the control to inserted valve opening and closing, convenient use.
Embodiment 2
As shown in figure 1, the speed regulation throttle valve 11 includes the magnetic valve 112 and flow control mechanism 113 being connected in series, institute
It is throttle orifice or choke valve or flow control valve to state flow control mechanism 113.
Supply of the cooperation of magnetic valve 112 and flow control mechanism 113 for low discharge pressure oil, regulation precision are high.
Embodiment 3
As shown in figure 3, the quantity of speed regulation throttle valve 11 is N number of (N >=3) in the speed governing valve group 1, wherein,
M (1≤M≤N) described speed regulation throttle valves 11 are guide's inserted valve 111；
The N-M speed regulation throttle valves 11 include the magnetic valve 112 and flow control mechanism 113 being connected in series, the stream
It is throttle orifice or choke valve or flow control valve to measure controlling organization 113.
Speed governing valve group 1 is combined into by different valve groups, can carry out the regulation of big flow, and and can carries out the tune of low discharge
Section, adjustable range is wide, adapts to different requirements.
A kind of control method of the pressurization speed governing oil circuit of hydraulic press, the speed governing valve group 1 of the pressurization speed governing oil circuit is by N number of
(N >=3) speed regulation throttle valve 11 is connected in parallel composition, while M (1≤M≤N) speed regulation throttle valves 11 opened, corresponding to obtain
The fuel feeding of pressure rating requirement converges and flow, flows into the function valve group 2 of the pressurization speed governing oil circuit.
Technical principle of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and the limitation to scope of protection of the utility model can not be construed in any way.Based on explanation herein,
Those skilled in the art, which would not require any inventive effort, can associate other embodiments of the present utility model,
These modes are fallen within the scope of protection of the utility model.
Claims (6)
1. a kind of pressurization speed governing oil circuit of hydraulic press, including the speed governing valve group and function valve group set gradually on pipeline, pressure
Oil passes through the speed governing valve group and function valve group successively, and the function valve group is connected with hydraulic actuating mechanism, it is characterised in that：Institute
State speed governing valve group and be connected in parallel by multiple speed regulation throttle valves and formed, the open degree of the speed regulation throttle valve is fixed value；
The function valve group includes valve one, valve two, valve three, valve four and valve five；
First sys node of multiple speed regulation throttle valves is connected with the valve three and valve five respectively；
The valve three is connected with valve two by the first pipeline, and the oil cylinder rodless cavity of the valve two and hydraulic actuating mechanism passes through second
Pipeline connects；The valve one is connected by pipeline with second pipeline and fuel tank respectively；
The valve five is connected by the rodless cavity of pipeline and piston supercharger, the rod chamber of the piston supercharger by pipeline with
The first pipeline connection；The valve four is connected by pipeline with the rodless cavity and fuel tank of the piston supercharger respectively.
2. the pressurization speed governing oil circuit of hydraulic press according to claim 1, it is characterised in that：Speed governing valve group and function valve group
It is integrally disposed on same valve block.
3. the pressurization speed governing oil circuit of hydraulic press according to claim 1, it is characterised in that：Each speed regulation throttle valve
Open degree is different.
4. the pressurization speed governing oil circuit of hydraulic press according to claim 1, it is characterised in that：The speed regulation throttle valve is first
Lead inserted valve.
5. the pressurization speed governing oil circuit of hydraulic press according to claim 1, it is characterised in that：The speed regulation throttle valve includes
The magnetic valve and flow control mechanism being connected in series, the flow control mechanism are throttle orifice or choke valve or flow control valve.
6. the pressurization speed governing oil circuit of hydraulic press according to claim 1, it is characterised in that：Speed governing in the speed governing valve group
The quantity of choke valve is N number of (N >=3), wherein,
M (1≤M ＜ N) described speed regulation throttle valves are guide's inserted valve；
N-M (1≤N-M≤N) described speed regulation throttle valves are the magnetic valve and flow control mechanism being connected in series, the flow control
Mechanism processed is throttle orifice or choke valve or flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720667382.2U CN206785773U (en) | 2017-06-09 | 2017-06-09 | A kind of pressurization speed governing oil circuit of hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720667382.2U CN206785773U (en) | 2017-06-09 | 2017-06-09 | A kind of pressurization speed governing oil circuit of hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785773U true CN206785773U (en) | 2017-12-22 |
Family
ID=60716405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720667382.2U Withdrawn - After Issue CN206785773U (en) | 2017-06-09 | 2017-06-09 | A kind of pressurization speed governing oil circuit of hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206785773U (en) |
-
2017
- 2017-06-09 CN CN201720667382.2U patent/CN206785773U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171222 Effective date of abandoning: 20180612 |