CN203835850U - Lifting balance pile-up valve for hydraulic molten metal trolley - Google Patents
Lifting balance pile-up valve for hydraulic molten metal trolley Download PDFInfo
- Publication number
- CN203835850U CN203835850U CN201420241933.5U CN201420241933U CN203835850U CN 203835850 U CN203835850 U CN 203835850U CN 201420241933 U CN201420241933 U CN 201420241933U CN 203835850 U CN203835850 U CN 203835850U
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- Prior art keywords
- valve
- oil
- hydraulic cylinder
- communicated
- supporting leg
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Abstract
The utility model discloses a lifting balance pile-up valve for a hydraulic molten metal trolley. Four hydraulic cylinder supporting leg control oil ways are integrated inside a valve body. Each hydraulic cylinder supporting leg control oil way at least comprises a reversing valve, a hydraulic control one-way valve, a rectification and speed regulation valve and a high pressure overflowing valve. One oil inlet of each hydraulic control one-way valve is communicated with the working oil port B of the corresponding reversing valve, one control oil port of each hydraulic control one-way valve is communicated with the working oil port A of the corresponding reversing valve, one oil outlet of each hydraulic control one-way valve is communicated with the oil inlet of the corresponding rectification and speed regulation valve, and one oil drainage port of each hydraulic control one-way valve is communicated with an oil return channel. The oil outlet of each rectification and speed regulation valve is communicated with a hydraulic cylinder supporting leg oil inlet. The high pressure overflowing valves are arranged on a passage between hydraulic cylinder supporting leg oil inlet oil ways and the oil return channels. According to the scheme, all cartridge valves are connected through a group valve, the installation and the piping layout are simplified, and therefore maintenance is convenient and fast. In addition, the rectification and speed regulation valves are arranged in the pile-up valve, stable ascending and descending speed regulation can be achieved, influence of the pressure and temperature is avoided, and the safety and reliability are improved.
Description
Technical field
The utility model relates to hydraulic pressure drive control system technical field, especially a kind of hydraulic iron waterwheel up and down balance system integrated valve.
Background technique
Existing hot-metal car elevating system, adopts hydraulic pressure drive control system, and oil circuit flow, direction and pressure wherein regulate, and are mostly connected to form by single valve bodies such as selector valve, hydraulic lock, series flow control valves.
Because each valve piece comparatively disperses, each valve piece is arranged on that in hot-metal car, to take installing space larger, and connecting pipeline is many, and pipeline distributes comparatively complicated, and outside leakage point is also more, makes troubles to maintenance, maintenance work.
Simultaneously, oil hydraulic cylinder supporting leg, in the time doing lifting action, as the hydraulic fluid flow rate that only adopts common series flow control valve can only realize a direction regulates, is realized the balance of a direction, and to hot-metal car, operation causes potential safety hazard for this, and Security is not high.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of hydraulic iron waterwheel up and down balance system integrated valve, the valve piece dispersion that adopts single valve body to connect to cause for solving existing hot-metal car hydraulic pressure drive control system, take larger installing space, and line arrangement is numerous and diverse, be not easy to maintenance, and adopt common series flow control valve can only realize a direction balance, to hot-metal car, operation has brought potential safety hazard.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of hydraulic iron waterwheel up and down balance system integrated valve, for controlling the lifting of hot-metal car oil hydraulic cylinder supporting leg, integrated valve has valve body, is integrated with four road oil hydraulic cylinder supporting leg oil circuit controls in valve body, and each road oil hydraulic cylinder supporting leg oil circuit control at least comprises: selector valve; Pilot operated check valve, a filler opening is communicated with described selector valve actuator port B, and a control port is communicated with described selector valve actuator port A, and an oil outlet is communicated with rectification series flow control valve filler opening, and a drain tap is connected oil return circuit; The oil outlet of described rectification series flow control valve is connected oil hydraulic cylinder supporting leg filler opening; High-pressure overflow valve, is arranged on the path between described oil hydraulic cylinder supporting leg filler opening oil circuit and oil return circuit;
Preferably, on described valve body, at least have: filler opening, connects pump side high pressure oil, for being communicated with the filler opening of selector valve described in each; Oil outlet, takes back fuel tank, for being communicated with oil return circuit; Four oil hydraulic cylinder interfaces, for connecting respectively oil hydraulic cylinder supporting leg described in each.
Preferably, on valve body, there is maximum load pressure feedback mouth Ls; Correspondingly, be provided with shuttle valve group in valve body, described shuttle valve group has: the first shuttle valve, the second shuttle valve, and the 3rd shuttle valve; Two filler openings of described the first shuttle valve are connected respectively the actuator port B of first, second selector valve, two filler openings of described the second shuttle valve are connected respectively the 3rd, the 4th selector valve actuator port B, described the first shuttle valve oil outlet is connected described the 3rd shuttle valve the first filler opening, described the second shuttle valve oil outlet is connected described the 3rd shuttle valve the second filler opening, and described the 3rd shuttle valve oil outlet is communicated with described maximum load pressure feedback mouth Ls.
Preferably, valve body outside also has system pressure pressure tap Pm.
Preferably, valve body outside also has each oil hydraulic cylinder induced pressure pressure tap in parallel respectively with interface A ', B ', C ', D '.
Preferably, described selector valve is position switching valve in Y type.
The utlity model has following beneficial effect:
The utility model provides a kind of hydraulic iron waterwheel up and down balance system integrated valve, in valve body, be integrated with four road oil hydraulic cylinder supporting leg oil circuit controls, each road oil hydraulic cylinder supporting leg oil circuit control at least comprises: selector valve, Pilot operated check valve, rectification series flow control valve, and high-pressure overflow valve, the function of each valve piece that this integrated valve is integrated, use a valve group that each cartridge valve is connected, simplify mounting arrangements, installing space is reduced, reduced the layout of pipeline, thereby reduce leakage point, made maintenance quite simple.Meanwhile, the built-in rectification series flow control valve of this integrated valve block, can realize and rising and the two-way smoothly adjustable-speed that declines, and is not stressed and temperature impact, has improved safety reliability.
Brief description of the drawings
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
Fig. 1 is an embodiment's of integrated valve of this programme hydraulic schematic diagram.
Embodiment
By specific instantiation, mode of execution of the present utility model is described below, those skilled in the art can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.The utility model can also be implemented or be applied by other different embodiment, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present utility model.
Fig. 1 is an embodiment's of hydraulic iron waterwheel up and down balance system integrated valve hydraulic schematic diagram.
The integrated valve of this programme has valve body, is integrated with each point of valve in valve body, in valve body, between each point of valve, is connected by some technique oil ducts, and the outside end face of valve body has the interface being connected with valve oil road, each point of inside.
In valve body, be integrated with four road oil hydraulic cylinder supporting leg oil circuit controls, each road oil hydraulic cylinder supporting leg oil circuit control at least comprises: selector valve 1, Pilot operated check valve 5, rectification series flow control valve 6, high-pressure overflow valve 7, back pressure one-way valve and throttle orifice etc.
Valve body outside has: oil inlet P ', be communicated with the oil inlet P of each first, second, third, fourth selector valve 1,2,3,4 respectively, it connects pump side high pressure oil.
Oil outlet T connects oil return fuel tank, for being communicated with oil return circuit.
Interface A ', B ', C ', D ' connect respectively each oil hydraulic cylinder supporting leg, and oil hydraulic cylinder can adopt lifting plunger cylinder.
5, one filler openings of Pilot operated check valve are communicated with selector valve actuator port B, and a control port is communicated with selector valve actuator port A, and an oil outlet is communicated with rectification series flow control valve 6 filler openings, and a return opening is connected oil return circuit.
The oil outlet of rectification series flow control valve 6 is connected oil hydraulic cylinder supporting leg filler opening.In this programme, adopt the series flow control valve with current plate, compare common throttle valve, the lifting speed of oil hydraulic cylinder supporting leg is not subject to the impact of load variations, and can realize dual regulation.
High-pressure overflow valve 7, is arranged on the path between oil hydraulic cylinder supporting leg filler opening oil circuit and oil return circuit, in the time that system pressure is greater than the rated pressure of setting, realizes security of system protection with overflow.
Valve body outside has maximum load pressure feedback mouth Ls, and correspondingly, integrated valve inside is also provided with the shuttle valve group of collecting highest load pressure, can in load sensitive system, be applied, energy-efficient.
Shuttle valve group has: the first shuttle valve 8, the second shuttle valve 9 and the 3rd shuttle valve 10, wherein 8 two filler openings of the first shuttle valve are connected respectively the actuator port B of first, second selector valve 1,2, the second 9 two of shuttle valves filler opening is connected respectively the 3rd, the 4th selector valve 3,4 actuator port B, the first shuttle valve 8 oil outlets are connected the 3rd shuttle valve 10 first filler openings, the second shuttle valve 9 oil outlets are connected the 3rd shuttle valve 10 second filler openings, and the 3rd shuttle valve 10 oil outlets are communicated with maximum load pressure feedback mouth Ls.
Integrated valve has multiple pressure measurement and satellite interface, facilitates Commissioning Analysis.For example valve body outside also has system pressure pressure tap Pm, and distinguishes each oil hydraulic cylinder induced pressure pressure tap in parallel with interface A ', B ', C ', D '.
In such scheme, each selector valve is position switching valve in Y type, in the time that in Y type, position switching valve is in meta, ABT interface in each selector valve is communicated with, the sealing of P interface, because of Pilot operated check valve 5 control port oil circuit off-loads, now Pilot operated check valve 5 is equivalent to a common one-way valve, maintains load quick condition, can realize load and keep function, substantially without leaking.
When each selector valve is when the next, pump side high pressure oil enters integrated valve block through P ' mouth, the PB path of flowing through in each selector valve, then through Pilot operated check valve 5, rectification series flow control valve 6, to plunger case oil suction chamber, piston rod stretches out, to realize the steady lifting of oil hydraulic cylinder supporting leg.
When reversing slide valve is when upper, pump side high pressure oil enters PA path in reversing slide valve 1 through P ' mouth, to hydraulically-controlled one-way valve 5 one control port oil circuits promotion Pilot operated check valve 5 conductings, in plunger case oil pocket, hydraulic oil flows back to oil sump tank interface T by BT path in rectification series flow control valve 6, Pilot operated check valve 5, each selector valve again, realizes oil hydraulic cylinder supporting leg and steadily declines.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (6)
1. a hydraulic iron waterwheel up and down balance system integrated valve, for controlling the lifting of hot-metal car oil hydraulic cylinder supporting leg, integrated valve has valve body, it is characterized in that, in valve body, be integrated with four road oil hydraulic cylinder supporting leg oil circuit controls, each road oil hydraulic cylinder supporting leg oil circuit control at least comprises: selector valve; Pilot operated check valve, a filler opening is communicated with described selector valve actuator port B, and a control port is communicated with described selector valve actuator port A, and an oil outlet is communicated with rectification series flow control valve filler opening, and a drain tap is connected oil return circuit; The oil outlet of described rectification series flow control valve is connected oil hydraulic cylinder supporting leg filler opening; High-pressure overflow valve, is arranged on the path between described oil hydraulic cylinder supporting leg filler opening oil circuit and oil return circuit.
2. hydraulic iron waterwheel up and down balance system integrated valve according to claim 1, is characterized in that at least having on described valve body: filler opening, connects pump side high pressure oil, for being communicated with the filler opening of selector valve described in each; Oil outlet, takes back fuel tank, for being communicated with oil return circuit; Four oil hydraulic cylinder interfaces, for connecting respectively oil hydraulic cylinder supporting leg described in each.
3. hydraulic iron waterwheel up and down balance system integrated valve according to claim 1 and 2, is characterized in that, has maximum load pressure feedback mouth Ls on valve body;
Correspondingly, be provided with shuttle valve group in valve body, described shuttle valve group has: the first shuttle valve, the second shuttle valve, and the 3rd shuttle valve;
Two filler openings of described the first shuttle valve are connected respectively the actuator port B of first, second selector valve, two filler openings of described the second shuttle valve are connected respectively the 3rd, the 4th selector valve actuator port B, described the first shuttle valve oil outlet is connected described the 3rd shuttle valve the first filler opening, described the second shuttle valve oil outlet is connected described the 3rd shuttle valve the second filler opening, and described the 3rd shuttle valve oil outlet is communicated with described maximum load pressure feedback mouth Ls.
4. hydraulic iron waterwheel up and down balance system integrated valve according to claim 1, is characterized in that, valve body outside also has system pressure pressure tap Pm.
5. hydraulic iron waterwheel up and down balance system integrated valve according to claim 1, is characterized in that, valve body outside also has with interface A ', B ', C ', D ' distinguishes each oil hydraulic cylinder induced pressure pressure tap in parallel.
6. hydraulic iron waterwheel up and down balance system integrated valve according to claim 1, is characterized in that, described selector valve is position switching valve in Y type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241933.5U CN203835850U (en) | 2014-05-12 | 2014-05-12 | Lifting balance pile-up valve for hydraulic molten metal trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241933.5U CN203835850U (en) | 2014-05-12 | 2014-05-12 | Lifting balance pile-up valve for hydraulic molten metal trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835850U true CN203835850U (en) | 2014-09-17 |
Family
ID=51513697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420241933.5U Expired - Fee Related CN203835850U (en) | 2014-05-12 | 2014-05-12 | Lifting balance pile-up valve for hydraulic molten metal trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835850U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855650A (en) * | 2019-11-27 | 2021-05-28 | 河北雷萨重型工程机械有限责任公司 | Landing leg hydraulic control system and crane |
| CN112963397A (en) * | 2021-03-31 | 2021-06-15 | 武汉海博瑞科技有限公司 | Marine hydraulic lifting device for jacking heavy object and control method |
-
2014
- 2014-05-12 CN CN201420241933.5U patent/CN203835850U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855650A (en) * | 2019-11-27 | 2021-05-28 | 河北雷萨重型工程机械有限责任公司 | Landing leg hydraulic control system and crane |
| CN112855650B (en) * | 2019-11-27 | 2023-01-17 | 河北雷萨重型工程机械有限责任公司 | Landing leg hydraulic control system and crane |
| CN112963397A (en) * | 2021-03-31 | 2021-06-15 | 武汉海博瑞科技有限公司 | Marine hydraulic lifting device for jacking heavy object and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20150512 |
|
| EXPY | Termination of patent right or utility model |