CN202073856U - Hydraulic control system with multi-machine pump of rubber vulcanizing machine - Google Patents
Hydraulic control system with multi-machine pump of rubber vulcanizing machine Download PDFInfo
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- CN202073856U CN202073856U CN2011201560040U CN201120156004U CN202073856U CN 202073856 U CN202073856 U CN 202073856U CN 2011201560040 U CN2011201560040 U CN 2011201560040U CN 201120156004 U CN201120156004 U CN 201120156004U CN 202073856 U CN202073856 U CN 202073856U
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Abstract
The utility model discloses a hydraulic control system with a multi-machine pump of a rubber vulcanizing machine, which solves the problem that the cost is increased due to the selection of an electrohydraulic reversing valve when high-pressure large-flow liquid is provided for a hydraulic cylinder, and comprises an oil supply pump, an unloading pump and a plurality of piston hydraulic cylinders, as well as unloading hydraulic control one-way valves and one-way valves, the quantity of the unloading hydraulic control one-way valves and the quantity of the one-way valves are corresponding to that of the piston hydraulic cylinders, the oil outlets of the one-way valves are connected with the piston hydraulic cylinders, boosting hydraulic control one-way valves are arranged between the oil supply pump and the one-way valves, wherein one-way hydraulic locks are formed between the one-way valves and boosting hydraulic control one-way valves; the unloading pump is connected with a magnetic exchange valve; and the first exchange port and the second exchange port of the magnetic exchange valve are respectively connected with the control ports of the boosting hydraulic control one-way valves and the control ports of the unloading hydraulic control one-way valves. In the utility model, under the premise that high-pressure large-flow liquid is supplied to the piston hydraulic cylinder, the electrohydraulic reversing valve is not used, the cost of the hydraulic system of the rubber vulcanizing machine is lowered, the structure is simple, and the connection is convenient.
Description
Technical field
The utility model relates to a kind of rubber vulcanizing machine, is specifically related to a kind of rubber vulcanizing machine one pump multimachine hydraulic control system.
Background technique
Rubber vulcanizing machine is used for the pressurization of model rubber product and baking.Rubber vulcanizing machine is to provide pressure oil by oil hydraulic pump, makes the piston up-down in the piston hydraulic cylinder.When workpiece was exerted pressure, because liquid is not easy to be compressed, only the highly pressurised liquid that needs oil hydraulic pump to pour in oil hydraulic cylinder seldom will obtain higher pressure.As everyone knows, the hydraulic pressure pump characteristics is that the flow of oil hydraulic pump greatly then pressure is low under the certain condition of power, and then flow is little for the pressure height of oil hydraulic pump.So an existing pump multimachine rubber vulcanizing machine adopts the oil hydraulic pump of big flow low-pressure and the oil hydraulic pump two pumps of high pressure small flow to be used in combination, and need electro-hydraulic reversing valve more in the loop that connects, allow high pressure, big flow liquid passes through.Because the cost of electro-hydraulic reversing valve is higher, the corresponding cost of production that has also just increased rubber vulcanizing machine.
Summary of the invention
For overcoming problem in the background technique, avoid selecting for use electro-hydraulic reversing valve, make the increase of cost of production, guarantee to provide the liquid of oil hydraulic cylinder high pressure high flow capacity simultaneously, the utility model provides a kind of rubber vulcanizing machine one pump multimachine hydraulic control system.
The technical solution of the utility model is: a kind of rubber vulcanizing machine one pump multimachine hydraulic control system, comprise oil feed pump and off-load pump, a plurality of piston hydraulic cylinders, and with the unloading pilot-controlled check valve and the one-way valve of the corresponding quantity of piston hydraulic cylinder, the oil outlet of one-way valve links to each other with piston hydraulic cylinder, unloading pilot-controlled check valve is located on the oil circuit of one-way valve and piston hydraulic cylinder, be provided with the Pilot operated check valve that boosts between oil feed pump and the one-way valve, described one-way valve forms unidirectional hydraulic lock with the Pilot operated check valve that boosts, the off-load pump links to each other with solenoid directional control valve, the first commutation mouth of solenoid directional control valve, the second commutation mouth is controlled mouth with the Pilot operated check valve that boosts respectively, the control mouth of unloading pilot-controlled check valve connects.
As another kind of improvement the of the present utility model, described piston hydraulic cylinder quantity is 6.
The beneficial effects of the utility model are, supply with under the prerequisite of piston hydraulic cylinder satisfying the high pressure high flow capacity, do not use electro-hydraulic reversing valve, have reduced the cost of hydraulic system.
Description of drawings
Accompanying drawing 1 is the utility model embodiment's a structural representation.
Among the figure, oil feed pump 1, off-load pump 2, solenoid directional control valve 3, the Pilot operated check valve 4 that boosts, unloading pilot-controlled check valve 5, one-way valve 6, piston hydraulic cylinder 7.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further:
By shown in Figure 1, a kind of rubber vulcanizing machine one pump multimachine hydraulic control system, comprise oil feed pump 1, off-load pump 2, the one-way valve 6 of 6 piston hydraulic cylinders 7 and corresponding quantity, Pilot operated check valve 4 and unloading pilot-controlled check valve 4 boost, described one-way valve 6 forms unidirectional hydraulic lock with the Pilot operated check valve 4 that boosts, oil feed pump 2 links to each other with the B mouth of the Pilot operated check valve 4 that boosts, the A mouth of Pilot operated check valve 4 of boosting links to each other with the filler opening of one-way valve 6, the oil outlet of one-way valve 6 links to each other with piston hydraulic cylinder 7, also be provided with unloading pilot-controlled check valve 5 on the oil circuit of one-way valve 6 and piston hydraulic cylinder 7, off-load pump 2 links to each other with solenoid directional control valve 3, first of solenoid directional control valve 3, the second commutation mouth respectively with the Pilot operated check valve 4 that boosts, the control mouth of unloading pilot-controlled check valve 5 connects.When electromagnet A1 in the solenoid directional control valve 3 switches on, the first commutation mouth of solenoid directional control valve 3 is connected with the control mouth of the Pilot operated check valve 4 that boosts, at this moment, hydraulic lock is inoperative, the B mouth of Pilot operated check valve 4 of boosting is communicated with the A mouth of the Pilot operated check valve 4 that boosts, the hydraulic oil that oil feed pump 1 provides is supplied with piston hydraulic cylinder 7 by the Pilot operated check valve 4 that boosts, one-way valve 6 successively, and the piston in the piston hydraulic pressure 7 is risen.When electromagnet A2 in the solenoid directional control valve 3 switches on, the second commutation mouth of solenoid directional control valve 3 is connected with the control mouth of unloading pilot-controlled check valve 5, and at this moment, one-way valve 6 oppositely ends, the B mouth of unloading pilot-controlled check valve 5 is communicated with the A mouth, and fluid is by unloading pilot-controlled check valve 5 oil sump tanks.The utility model had both avoided selecting for use electro-hydraulic reversing valve under the situation that has increased a Pilot operated check valve, can guarantee to provide simultaneously the liquid of the enough high pressure high flow capacities of oil hydraulic cylinder again, had lowered the cost of vulcanization of rubber machine hydraulic system greatly.
Every technician's notice: though the utility model is described according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this model utility; the repacking of any utilization inventive concept all will be included in this patent scope of patent protection.
Claims (2)
1. rubber vulcanizing machine one pump multimachine hydraulic control system, comprise oil feed pump (1) and off-load pump (2), a plurality of piston hydraulic cylinders (7), and with the unloading pilot-controlled check valve (5) and the one-way valve (6) of the corresponding quantity of piston hydraulic cylinder (7), the oil outlet of one-way valve (6) links to each other with piston hydraulic cylinder (7), unloading pilot-controlled check valve (5) is located on the oil circuit of one-way valve (6) and piston hydraulic cylinder (7), it is characterized in that: be provided with the Pilot operated check valve that boosts (4) between oil feed pump (1) and the one-way valve (6), described one-way valve (6) forms unidirectional hydraulic lock with the Pilot operated check valve (4) that boosts, off-load pump (2) links to each other with solenoid directional control valve (3), the first commutation mouth of solenoid directional control valve (3), the second commutation mouth is controlled mouth with the Pilot operated check valve that boosts (4) respectively, the control mouth of unloading pilot-controlled check valve (5) connects.
2. rubber vulcanizing machine one pump multimachine hydraulic control system according to claim 1 is characterized in that described piston hydraulic pressure (7) cylinder quantity is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201560040U CN202073856U (en) | 2011-05-17 | 2011-05-17 | Hydraulic control system with multi-machine pump of rubber vulcanizing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201560040U CN202073856U (en) | 2011-05-17 | 2011-05-17 | Hydraulic control system with multi-machine pump of rubber vulcanizing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202073856U true CN202073856U (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201560040U Expired - Fee Related CN202073856U (en) | 2011-05-17 | 2011-05-17 | Hydraulic control system with multi-machine pump of rubber vulcanizing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202073856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157688A (en) * | 2011-12-15 | 2013-06-19 | 广东科达机电股份有限公司 | Heavy-load walking beam lifting hydraulic control device |
| CN103287998A (en) * | 2013-05-31 | 2013-09-11 | 武汉船用机械有限责任公司 | Anchor windlass pump station control system |
-
2011
- 2011-05-17 CN CN2011201560040U patent/CN202073856U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157688A (en) * | 2011-12-15 | 2013-06-19 | 广东科达机电股份有限公司 | Heavy-load walking beam lifting hydraulic control device |
| CN103287998A (en) * | 2013-05-31 | 2013-09-11 | 武汉船用机械有限责任公司 | Anchor windlass pump station control system |
| CN103287998B (en) * | 2013-05-31 | 2016-04-13 | 武汉船用机械有限责任公司 | A kind of anchor winch pumping station controlling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20130517 |