CN204729522U - A kind of pilot line for servo pressure brake system - Google Patents
A kind of pilot line for servo pressure brake system Download PDFInfo
- Publication number
- CN204729522U CN204729522U CN201520390105.2U CN201520390105U CN204729522U CN 204729522 U CN204729522 U CN 204729522U CN 201520390105 U CN201520390105 U CN 201520390105U CN 204729522 U CN204729522 U CN 204729522U
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- pressure
- bivalve
- safe
- break
- valve group
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Abstract
The utility model discloses a kind of pilot line for servo pressure brake system, comprise pneumatic pump, filter, accumulator, filter cleaner, liquid level relay, motor, pressure regulator valve group, gear pump and fuel tank, described motor is connected by shaft coupling with gear pump, be connected with fuel tank after gear pump and pneumatic pump are connected in parallel, filter connects the filler opening of modulating valve group, and pressure regulator valve group oil outlet connects safe bivalve and break; Be provided with pressure transducer between described safe bivalve and break, described pressure regulator valve group is equipped with pressure transducer, whole system is connected with accumulator; Described pressure regulator valve group is provided with overflow module, voltage regulating module and off-load module.The utility model can improve system pressure fast, ensures the stability of system pressure, adopts safe bivalve control brake, increase the safety coefficient of break; System composition is simple, and dynamic performance is better, can be stabilized in operating range by system pressure, decrease amount of maintenance, ensures the working efficiency of press.
Description
Technical field
The utility model relates to a kind of pilot line for servo pressure brake system, belongs to metal forming machinery technical field.
Background technique
Press machine is general forging equipment, and it almost can carry out all stamping procesies.Servo-pressing machine is due to its good accurate control and shaping characteristic, just be widely used at present, and break is the critical component of servo-pressing machine main transmission, braking system is the important component part of whole press, and its performance directly has influence on Security, the reliability of press machine work.Hydraulic control break is due to less rotary inertia and can provide larger braking torque, is usually used on servo press.
Braking system control loop, the general form of motor driven gear pump that adopts provides hydraulic power, and break adopts general solenoid valve to control, and system pressure will be caused so unstable, and break safety coefficient is lower.When system pressure is lower, break cannot be thrown off completely, causes the wearing and tearing of break; When system pressure is higher, easily produce the impact larger to break, reduce the working life of break; System pressure is unstable, and whole press can be caused frequently to report to the police or shut down, and affects manufacturing efficiency and there is larger potential safety hazard.
Summary of the invention
Technical problem to be solved in the utility model is the defect existed for prior art, provides a kind of pilot line for servo pressure brake system.
For solving this technical problem, the utility model provides a kind of pilot line for servo pressure brake system, comprise pneumatic pump, filter, accumulator, filter cleaner, liquid level relay, motor, gear pump and fuel tank, and pressure transducer, break one, safe bivalve one, break two, pressure transducer two, safe bivalve two and pressure regulator valve group, described motor is connected by shaft coupling with gear pump, gear pump and pneumatic pump are connected in parallel, gear pump is connected with fuel tank with the filler opening of pneumatic pump, its oil outlet is connected with one end of filter, the other end connection of filter has pressure regulation, the filler opening of the modulating valve group of overflow and Unloading Effect, the oil outlet of pressure regulator valve group connects the filler opening of safe bivalve one and safe bivalve two, the filler opening of the oil outlet connecting brake one of safe bivalve one, the filler opening of the oil outlet connecting brake two of safe bivalve two, the pressure transducer one detecting the hydraulic fluid pressure flowing into break one is provided with between described safe bivalve one and break one, the pressure transducer two detecting the hydraulic fluid pressure flowing into break two is provided with between safe bivalve two and break two, the pressure of input brake hydraulic oil described pressure regulator valve group is equipped with detect and by the pressure transducer three of signal feed back to PLC, whole system is connected with accumulator.
Described pressure regulator valve group is provided with the overflow module of the maximum pressure of guarantee system, the voltage regulating module of pressure in safety range of keeping system and the off-load module of hydraulic oil for draining in pipeline, and described pressure regulator valve group is equipped with pressure gauge.
Solenoid valve one and solenoid valve two liang of group solenoid valves and hydraulic control valve one and hydraulic control valve two liang group hydraulic control valve, position limit switch one and position limit switch 2 two position limit switches are all comprised, the flow direction of two groups of hydraulic control valve co-controlling hydraulic oil in described safe bivalve one and safe bivalve two.
The power of described gear pump is greater than the power of pneumatic pump.
Described pumping plant power system is the combination of gear pump and pneumatic pump or the combination of pneumatic pump and pneumatic pump.
Described accumulator is gas barrier formula accumulator.
Described pilot line arranges multiple break and corresponding safe bivalve.
Beneficial effect: the power plant that the utility model is made up of pneumatic pump and motor and gear pump, the pressure of system can be improved fast, pressure regulator valve group can ensure the stability of system pressure, improve the reliability of whole braking system, ensure working efficiency, adopt safe bivalve control brake, increase the safety coefficient of break; System composition is simple, and dynamic performance is better, can be stabilized in operating range by system pressure, improve the reliability of whole system, decrease amount of maintenance, ensures the working efficiency of press.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model pilot line;
Fig. 2 is the structure principle chart of the utility model pressure regulator valve group;
Fig. 3 is that the hydraulic oil under the safe bivalve power failure state of the utility model flows to schematic diagram;
Fig. 4 is that the hydraulic oil that the safe bivalve of the utility model obtains under electricity condition flows to schematic diagram.
In figure: 1 pneumatic pump, 2 bafflers, 3 filters, 4 pressure transducers one, 5 breaks one, 6 safe bivalves one, 7 breaks two, 8 pressure transducers two, 9 safe bivalves two, 10 accumulators, 11 pressure regulator valve groups, 12 filter cleaners, 13 liquid level relays, 14 motors, 15 gear pumps, 16 fuel tanks, 17 pressure gauges, 18 pressure transducers three, 19 off-load modules, 20 voltage regulating modules, 21 overflow modules, 22 solenoid valves one, 23 position limit switches one, 24 hydraulic control valve one, 25 solenoid valves two, 26 position limit switches two, 27 hydraulic control valve two.
Embodiment
Below in conjunction with drawings and Examples, the utility model is specifically described.
Figure 1 shows that the schematic diagram of the utility model pilot line.
Pilot line of the present utility model as shown in Figure 1, comprises 1 pneumatic pump, 2 bafflers, 3 filters, safe bivalve two, 10 accumulator of 4 pressure transducer one, 5 break one, 6 safe bivalve one, 7 break two, 8 pressure transducer two, 9,11 pressure regulator valve groups, 12 filter cleaners, 13 liquid level relays, 14 motors, 15 gear pumps, 16 fuel tanks, 17 pressure gauges, 18 pressure transducers three.
Described motor 14 is connected by shaft coupling with gear pump 15, and gear pump 15 and pneumatic pump 1 are connected in parallel, and motor and gear pump and pneumatic pump form pumping plant power system, two kinds of power parallel control.
Described gear pump 15 is connected with fuel tank 16 with the filler opening of pneumatic pump 1, its oil outlet is connected with one end of filter 3, the other end of filter 3 connects the filler opening of modulating valve group 11 with pressure regulation, overflow and Unloading Effect, the oil outlet of pressure regulator valve group 11 connects the filler opening of safe bivalve 1 and safe bivalve 29, the filler opening of the oil outlet connecting brake 1 of safe bivalve 1, the filler opening of the oil outlet connecting brake 27 of safe bivalve 29, safe bivalve control brake, improves the Security of break and whole system.
Pressure transducer 1 is provided with between described safe bivalve 1 and break 1, Real-Time Monitoring flows into the hydraulic fluid pressure of break 1, pressure transducer 28 is provided with between safe bivalve 29 and break 27, the hydraulic fluid pressure of break 27 is flowed into for Real-Time Monitoring, and by signal feed back to PLC, when pressure excessive or too small time all report to the police, PLC according to pressure size, the start and stop of control system.
Described whole braking system is connected with accumulator 10, and accumulator 10 is for the pressure of stable system.Ensure quick response during pressure change.
Described accumulator 10 is gas barrier formula accumulator.
The power of described gear pump 15 is greater than the power of pneumatic pump 1.
Described filter 3 and filter cleaner 12 are arranged on pipeline, ensure the cleaning in whole loop.
Figure 2 shows that the structure principle chart of the utility model pressure regulator valve group.
Described pressure regulator valve group 11 is provided with overflow module 21, voltage regulating module 20 and off-load module 19: the pressure of voltage regulating module 20 keeping system is in safety range; Overflow module 21 ensures the maximum pressure of system; The hydraulic oil of off-load module 19 for draining in pipeline, system pressure can control in safety range by described pressure regulator valve group 11, avoids overpressure to produce greater impact to break, affects the working life of break.
Pressure transducer 3 18 is equipped with described pressure regulator valve group 11, the start and stop of the force value control gear pump 15 that the signal feed back collected collects to PLC, PLC according to this pressure transducer 3 18 or pneumatic pump 1.
Pressure gauge 17 is equipped with described pressure regulator valve group 11, for showing current system pressure.
The flow direction of solenoid valve 1 and solenoid valve 2 25 liang of group solenoid valves and hydraulic control valve 1 and hydraulic control valve 2 27 liang group hydraulic control valve co-controlling hydraulic oil is all comprised in described safe bivalve 1 and safe bivalve 29; During solenoid valve dead electricity, safe bivalve is closed, brake.When solenoid valve obtains electric, safe bivalve is opened, and break is thrown off, and namely PLC is by controlling disengagement and the braking of the break-make control brake of safe bivalve.
Position limit switch 1 and position limit switch 2 26 two position limit switches are equipped with in described safe bivalve 1 and safe bivalve 29, the position limit switch of safe bivalve electricity condition, indirect feedback break oily situation, after safe bivalve is connected, if two position limit switches simultaneously electric, system is normally run; Only have a position limit switch to obtain electric, system alarm, but still can continue to run; Two position limit switches all must not be electric, system alarm, and forbid that press machine runs.
Working procedure of the present utility model is as follows:
During original state, the safe bivalve 1 of connecting brake 1 and the safe bivalve 29 of connecting brake 27 are in power failure state, and break 1 and break 27 are in braking state due to the effect of spring force; Control program is set, when system pressure is less than P1, carries out ftercompction by gear pump 15; After system pressure reaches P1, by pneumatic pump 1 ftercompction to working pressure P; After PLC obtains automatically controlled signal, braking system starts to start.
Be arranged on the pressure transducer 3 18 real-time monitoring system pressure in pressure regulator valve group 11, and feed back to PLC, PLC is according to the signal gathered, first the startup of control gear pump 15, gear pump 15 quits work after boost in pressure to P1 rapidly, by pneumatic pump 1, pressure is mended to working pressure P again, the working pressure of system can be reached fast, again can the pressure of stable system.
Arrive safe bivalve 1 and safe bivalve 29 from filter 3 hydraulic oil out through pressure regulator valve group 11, safe bivalve 1 electric after, solenoid valve commutates, hydraulic oil flows into break 1 through hydraulic control valve, break 1, due to the effect of hydraulic oil, is in disengaged condition, allows press to start; After safe bivalve 1 dead electricity, hydraulic oil flows to the pathway closure of break 1, and due to the effect of spring force, the hydraulic oil in break 1 hydraulic pressure cavity flow back into fuel tank through the return opening of safe bivalve, and break 1 is in braking state; Similarly, safe bivalve 29 electric after, solenoid valve commutates, and hydraulic oil flows into break 27 through hydraulic control valve, and break 27, due to the effect of hydraulic oil, is in disengaged condition, allows press to start; After safe bivalve 29 dead electricity, hydraulic oil flows to the pathway closure of break, and due to the effect of spring force, the hydraulic oil in break 27 hydraulic pressure cavity flow back into fuel tank through the return opening of safe bivalve, and break 27 is in braking state; Be arranged on the pressure transducer 1 between break 1 and safe bivalve 1 and the pressure transducer 28 that is arranged between break 27 and safe bivalve 29 by signal feed back to PLC.
The control principle (as shown in Figure 2) of pressure regulator valve group:
Hydraulic oil flows out through filter 3 after gear pump 15 or pneumatic pump 1 flow out, and flow into pressure regulator valve group 11 from P mouth, ball valve original state is in normally off, and hydraulic oil is divided into three tributaries after flowing into: pressure regulator valve group 11 is directly flowed out from PV mouth in the first tributary; Second tributary flows to the relief valve of overflow module 21, and this branch road is provided with pressure transducer 3 18 and hydralic pressure gauge 17, and Real-Time Monitoring also shows the pressure of whole system; 3rd tributary flows to voltage regulating module 20.
When system pressure is less than the force value of voltage regulating module 20 setting, hydraulic oil flows out from the outlet of pressure regulator valve group 11; When system pressure is greater than the force value of voltage regulating module 20 setting, under the effect of the pressure, pilot relief valve commutates, and section hydraulic oil flows back to fuel tank 16; If the pressure of system is excessive, when reaching the setting value of overflow module 21 relief valve, overflow module 21 works, and hydraulic oil flows back to fuel tank 16 from overflow module 21, can not exceed the pressure of pressure regulator valve group 11 setting from the hydraulic fluid pressure of pressure regulator valve group 11 outflow.
Figure 3 shows that the hydraulic oil under the safe bivalve power failure state of the utility model flows to schematic diagram.
Under safe bivalve power failure state, the hydraulic oil of safe bivalve 1 and safe bivalve 29 flows to is identical, introduces the hydraulic oil of safe bivalve 1 under power failure state flow at this:
Solenoid valve must not electricity time, solenoid valve 1 and solenoid valve 2 25 are all in right position, and hydraulic oil is divided into four branch roads after pressure regulator valve group 11 flows out after P mouth enters safe bivalve 1: the first branch road flows to the left side of hydraulic control valve 1 to A mouth through P mouth from solenoid valve 1; Second branch road hydraulic oil flows to the right side of hydraulic control valve 2 27 to A mouth through P mouth from solenoid valve 2 25; 3rd branch road flows to the P mouth of hydraulic control valve 1 and hydraulic control valve 2 27; 4th branch road hydraulic oil flows to the right side of hydraulic control valve 1 and the left side of hydraulic control valve 2 27.Because hydraulic control valve 1 is equal with hydraulic control valve 2 27 pressure at both sides, so the P mouth of hydraulic control valve 1 and hydraulic control valve 2 27 all closes not conducting, then the hydraulic oil flowed into from P mouth cannot flow out safe bivalve 1, and hydraulic oil is suppressed at P mouth place.Break 1 under spring force, hydraulic oil in its hydraulic pressure cavity is extruded, the hydraulic oil flowed back to flows out from the A mouth of break 1, A mouth through safe bivalve 1 flows into safe bivalve 1, the hydraulic oil flowing into safe bivalve 1 flows to hydraulic control valve 1 and hydraulic control valve 2 27 respectively through A, B two nodes, and the hydraulic oil flowing to hydraulic control valve 1 finally flows to the oil outlet T of safe bivalve 1 to T mouth through A mouth; The hydraulic oil flowing to hydraulic control valve 2 27 has also finally flowed to the oil outlet T of safe bivalve 1 through B mouth to T1 mouth, and now break 1 must not be oily, is in braking state.
Figure 4 shows that the hydraulic oil that the safe bivalve of the utility model obtains under electricity condition flows to schematic diagram.
It is identical that the hydraulic oil of safe bivalve safe bivalve 1 and safe bivalve 29 under obtaining electricity condition flows to, and introduces safe bivalve 1 obtaining the flow direction of the hydraulic oil under electricity condition at this:
Solenoid valve obtain electric after, solenoid valve 1 and solenoid valve 2 25 are all in left position, and hydraulic oil is divided into four branch roads after the P mouth of solenoid valve 1 enters safe bivalve 1: the first branch road from solenoid valve 1 through P mouth to B mouth; Second branch road hydraulic oil from solenoid valve 2 25 through P mouth to B mouth; 3rd branch road flows to the P mouth of hydraulic control valve 1 and hydraulic control valve 2 27; 4th branch road hydraulic oil flows to the right side of hydraulic control valve 1 and the left side of hydraulic control valve 2 27; Due to hydraulic control valve 1 and hydraulic control valve 2 27 pressure at both sides unequal, so the P mouth of hydraulic control valve 1 is conducting to A mouth passage, the P mouth of hydraulic control valve 2 27 is conducting to B mouth passage.The hydraulic oil then flowed into from the P mouth of safe bivalve 1 flows to A mouth through the P mouth of hydraulic control valve 1 and flows to B mouth through the P mouth of hydraulic control valve 2 27, finally flow out from the A mouth of safe bivalve 1, flow to break 1, break 1 overcomes spring force and is in disengaged condition under the effect of hydraulic oil.
The size of retardation pressure needed for break, and the length of braking line and caliber, can be set to the combination of gear pump and pneumatic pump or the combination of pneumatic pump and pneumatic pump.
Described pilot line, according to the quantity of actuating motor or the requirement of braking torque, can arrange one or several break, the action simultaneously of multiple break, and structure is simple, and cost is lower, ensures the Maximum Torque of braking.
The power plant that the utility model is made up of pneumatic pump and motor and gear pump, the pressure of system can be improved fast, pressure regulator valve group can ensure the stability of system pressure, improve the reliability of whole braking system, ensure working efficiency, adopt safe bivalve control brake, increase the safety coefficient of break; System composition is simple, and dynamic performance is better, can be stabilized in operating range by system pressure, improve the reliability of whole system, decrease amount of maintenance, ensures the working efficiency of press.
The above-mentioned publicity enforcement pilot line with two breaks of the present utility model, but the utility model is not limited thereto, and as the pilot line of break of the present utility model, break can be two and multiple break.
Claims (7)
1., for a pilot line for servo pressure brake system, comprise pneumatic pump (1), filter (3), accumulator (10), filter cleaner (12), liquid level relay (13), motor (14), gear pump (15) and fuel tank (16), is characterized in that: also comprise pressure transducer one (4), break one (5), safe bivalve one (6), break two (7), pressure transducer two (8), safe bivalve two (9) and pressure regulator valve group (11), described motor (14) is connected by shaft coupling with gear pump (15), gear pump (15) and pneumatic pump (1) are connected in parallel, gear pump (15) is connected with fuel tank (16) with the filler opening of pneumatic pump (1), its oil outlet is connected with the one end of filter (3), and the other end connection of filter (3) has pressure regulation, the filler opening of the modulating valve group (11) of overflow and Unloading Effect, the oil outlet of pressure regulator valve group (11) connects the filler opening of safe bivalve one (6) and safe bivalve two (9), the filler opening of the oil outlet connecting brake one (5) of safe bivalve one (6), the filler opening of the oil outlet connecting brake two (7) of safe bivalve two (9), the pressure transducer one (4) detecting the hydraulic fluid pressure flowing into break one (5) is provided with between described safe bivalve one (6) and break one (5), the pressure transducer two (8) detecting the hydraulic fluid pressure flowing into break two (7) is provided with between safe bivalve two (9) and break two (7), the pressure of input brake hydraulic oil described pressure regulator valve group (11) is equipped with detect and by the pressure transducer three (18) of signal feed back to PLC, whole system is connected with accumulator (10).
2. the pilot line for servo pressure brake system according to claim 1, it is characterized in that: described pressure regulator valve group (11) is provided with the overflow module (21) of the maximum pressure of guarantee system, the voltage regulating module of pressure in safety range (20) of keeping system and the off-load module (19) of hydraulic oil for draining in pipeline, and described pressure regulator valve group (11) is equipped with pressure gauge (17).
3. the pilot line for servo pressure brake system according to claim 2, it is characterized in that: all comprise solenoid valve one (22) and solenoid valve two (25) two groups of solenoid valves and hydraulic control valve one (24) and hydraulic control valve two (27) two groups of hydraulic control valve, position limit switch one (23) and position limit switch two (26) two position limit switches in described safe bivalve one (6) and safe bivalve two (9), the flow direction of two groups of hydraulic control valve co-controlling hydraulic oil.
4. the pilot line for servo pressure brake system according to claim 3, is characterized in that: the power of described gear pump (15) is greater than the power of pneumatic pump (1).
5. the pilot line for servo pressure brake system according to claim 3, is characterized in that: described gear pump (15) forms pumping plant power system with the combination of pneumatic pump (1) or the combination of pneumatic pump (1) and pneumatic pump (1).
6. the pilot line for servo pressure brake system according to claim 3, is characterized in that: described accumulator (10) is gas barrier formula accumulator.
7. the pilot line for servo pressure brake system according to any one of claim 1-6, is characterized in that: described pilot line arranges multiple break and corresponding safe bivalve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390105.2U CN204729522U (en) | 2015-06-08 | 2015-06-08 | A kind of pilot line for servo pressure brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390105.2U CN204729522U (en) | 2015-06-08 | 2015-06-08 | A kind of pilot line for servo pressure brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204729522U true CN204729522U (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520390105.2U Withdrawn - After Issue CN204729522U (en) | 2015-06-08 | 2015-06-08 | A kind of pilot line for servo pressure brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204729522U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895967A (en) * | 2015-06-08 | 2015-09-09 | 济南二机床集团有限公司 | Control pipeline used for braking system of servo press |
| CN106762516A (en) * | 2016-12-12 | 2017-05-31 | 安徽海拓志永智能装备股份有限公司 | The jack-up pumping plant of novel press machine |
| CN106762517A (en) * | 2016-12-12 | 2017-05-31 | 安徽海拓志永智能装备股份有限公司 | A kind of jack-up pumping plant for forcing press |
| CN114321221A (en) * | 2021-12-31 | 2022-04-12 | 富奥汽车零部件股份有限公司 | A kind of unloading method and unloading device of high viscosity oil retarder |
-
2015
- 2015-06-08 CN CN201520390105.2U patent/CN204729522U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895967A (en) * | 2015-06-08 | 2015-09-09 | 济南二机床集团有限公司 | Control pipeline used for braking system of servo press |
| CN106762516A (en) * | 2016-12-12 | 2017-05-31 | 安徽海拓志永智能装备股份有限公司 | The jack-up pumping plant of novel press machine |
| CN106762517A (en) * | 2016-12-12 | 2017-05-31 | 安徽海拓志永智能装备股份有限公司 | A kind of jack-up pumping plant for forcing press |
| CN114321221A (en) * | 2021-12-31 | 2022-04-12 | 富奥汽车零部件股份有限公司 | A kind of unloading method and unloading device of high viscosity oil retarder |
| CN114321221B (en) * | 2021-12-31 | 2023-06-30 | 富奥汽车零部件股份有限公司 | Unloading method and unloading device for high-viscosity oil retarder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151028 Effective date of abandoning: 20170503 |