CN202590890U - High-performance vertical mill hydraulic system - Google Patents
High-performance vertical mill hydraulic system Download PDFInfo
- Publication number
- CN202590890U CN202590890U CN 201220192691 CN201220192691U CN202590890U CN 202590890 U CN202590890 U CN 202590890U CN 201220192691 CN201220192691 CN 201220192691 CN 201220192691 U CN201220192691 U CN 201220192691U CN 202590890 U CN202590890 U CN 202590890U
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- valve
- oil circuit
- rodless cavity
- rod chamber
- oil path
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Abstract
The utility model discloses a high-performance vertical mill hydraulic system, which comprises an oil pump which is connected with an oil tank, wherein an outlet of the oil pump is connected with a high pressure filter; a main reversing valve is connected behind the high pressure filter and is connected with a rodless cavity oil path and a rod cavity oil path of a milling roll oil cylinder through a first hydraulic control one-way valve and a second hydraulic one-way valve respectively; a cartridge valve for communicating the rodless cavity oil path with the rod cavity oil path is arranged between the rodless cavity oil path and the rod cavity oil path and is in the form of a pilot electromagnetic valve; the rodless cavity oil path is connected with a rodless cavity return oil path which is provided with a first electromagnetic valve and is communicated with the oil tank; the rod cavity oil path is connected with a rod cavity return oil path which is provided with a second electromagnetic valve and is communicated with the oil tank; the first electromagnetic valve is connected with the second electromagnetic valve through an oil path; and the main reversing valve is connected with an overflow valve in parallel. The high-performance vertical mill hydraulic system has the advantages of rational structure, superior working performance and capability of realizing work such as differential quick roll lifting.
Description
Technical field
The utility model relates to a kind of Vertical Mill hydraulic system.
Background technology
Existing Vertical Mill hydraulic system, owing to reasons such as structures, service behaviour is undesirable, can not realize lifting fast work such as roller.
Summary of the invention
It is a kind of rational in infrastructure that the purpose of the utility model is to provide, the high-performance Vertical Mill hydraulic system of favorable working performance.
The technical solution of the utility model is:
A kind of high-performance Vertical Mill hydraulic system; It is characterized in that: comprise the oil pump that is connected with fuel tank; The oil pump outlet is connected with a high pressure filter, connects main reversing valve behind the high pressure filter, and main reversing valve is connected with rodless cavity oil circuit, the rod chamber oil circuit of grinding roller oil cylinder respectively through first, second hydraulic control one-way valve; The inserted valve that the rodless cavity oil circuit is communicated with the rod chamber oil circuit is set between rodless cavity oil circuit and rod chamber oil circuit; Inserted valve is the form of pilot solenoid valve control, the rodless cavity oil circuit be provided with first magnetic valve, be connected with rodless cavity oil return circuit that fuel tank communicates, the rod chamber oil circuit be provided with second magnetic valve, be connected with rod chamber oil return circuit that fuel tank communicates; Connect through oil circuit between first, second magnetic valve, main reversing valve is parallelly connected with overflow valve.
On rod chamber oil circuit and rodless cavity oil circuit, be respectively equipped with first, second high back voltage filter, first, second high back voltage filter respectively be arranged on rod chamber oil circuit and rodless cavity oil circuit on the 3rd, the 4th hydraulic control one-way valve parallelly connected.
Filter is set before pilot solenoid valve, and filter is connected with accumulator.
The utility model is rational in infrastructure, and service behaviour is excellent, can realize the differential work such as roller of lifting fast.Vertical Mill pressurized hydraulic system is a high pressure-retaining system of accumulator, and it can be realized ftercompction, reduces pressure, lifts roller, the roller that falls, flump functions such as roller, circulating filtration certainly.Under the normal operative condition of grinding roller, it is a course of action of adjustment at random.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the oily flow graph when normally lifting roller work.
Fig. 3 is differential oily flow graph when lifting roller.
Fig. 4 is the oily flow graph when falling roller.
Fig. 5 is the oily flow graph when flumping roller.
Oily flow graph when Fig. 6 is the circulating filtration debugging.
Oily flow graph when Fig. 7 is the epicoele pressurization.
Oily flow graph when Fig. 8 is the epicoele decompression.
The specific embodiment
A kind of high-performance Vertical Mill hydraulic system; Comprise the oil pump 2 that is connected with fuel tank 1; The oil pump outlet is connected with a high pressure filter 3, connects main reversing valve 4 behind the high pressure filter, and main reversing valve is connected with rodless cavity oil circuit 16, the rod chamber oil circuit 17 of grinding roller oil cylinder 7 respectively through first, second hydraulic control one-way valve 5,6; The inserted valve 8 that the rodless cavity oil circuit is communicated with the rod chamber oil circuit is set between rodless cavity oil circuit and rod chamber oil circuit; Inserted valve is the form of pilot solenoid valve 9 control, the rodless cavity oil circuit be provided with first magnetic valve 10, be connected with rodless cavity oil return circuit 11 that fuel tank communicates, the rod chamber oil circuit be provided with second magnetic valve 12, be connected with rod chamber oil return circuit 13 that fuel tank communicates; Connect through oil circuit 14 between first, second magnetic valve, main reversing valve is parallelly connected with overflow valve 15.
On rod chamber oil circuit and rodless cavity oil circuit, be respectively equipped with first, second high back voltage filter 22,23, first, second high back voltage filter respectively be arranged on rod chamber oil circuit and rodless cavity oil circuit on the 3rd, the 4th hydraulic control one-way valve 18,19 parallelly connected.
Main work loop works principle:
High pressure pumping apparatus is oil suction from fuel tank, is connected to oil cylinder pressurizing chamber and accumulator energy storage pressurize through check valve, solenoid directional control valve, hydraulic control one-way valve, one-way throttle valve etc. after filtering through high pressure filter.Through oil circuit pressure transmitter monitoring pressurized operation pressure, thus the course of action of adjusting at random.In the loop of delivery side of pump, the rod chamber that connects oil cylinder and rodless cavity, all be provided with Pressure gauge, be used to keep watch on oil circuit pressure.
Each loop of working specifies as follows:
1. normally lift roller: the oil pump starting, fluid filters through high-pressure filter, prevents to surpass the little material of 20 μ m and gets into system, and overflow valve is less than not off-load of setting pressure; Working connection is built pressure, and pressure is set at 8Mpa, and fluid gets into main reversing valve, main reversing valve P-B; Through hydraulic control one-way valve, Double throttle check valve gets into pressurization oil cylinder rodless cavity oil circuit from reversal valve for A-T, fluid; The control pilot solenoid valve must not be electric, and inserted valve is closed, and rod chamber and rodless cavity are not communicated.The rod chamber oil extraction gets electric fluid and slowly gets into fuel tank through controlling its oil circuit electromagnet, and pressurization oil cylinder rodless cavity oil-feed oil cylinder rises to accomplish and lifts the roller action.
2. the differential roller of lifting: the oil pump starting, fluid filters through high-pressure filter, prevents to surpass the little material of 20 μ m and gets into system; Overflow valve is less than not off-load of setting pressure, and working connection is built pressure, and pressure is set at 8Mpa; Fluid gets into main reversing valve, main reversing valve P-B, A-T; Through hydraulic control one-way valve, Double throttle check valve gets into pressurization oil cylinder rodless cavity oil circuit to fluid from reversal valve.The control pilot solenoid valve gets; Inserted valve is opened, and rod chamber and rodless cavity are communicated, and rod chamber fluid gets into the pressurization oil cylinder rodless cavity with pressure through plugging in valve; Rod chamber fluid gets into rodless cavity like this, the fluid that the fluid that oil pump is supplied with and ante-chamber the get into oil cylinder rising that promotes together to pressurize.Realize the differential roller of lifting fast.
3. roller falls: the oil pump starting, and fluid filters through high-pressure filter, prevents to surpass the little material of 20 μ m and gets into system; Overflow valve is less than not off-load of setting pressure, and working connection is built pressure, and pressure is set at 16Mpa; Fluid gets into reversal valve; Reversal valve 20 P-A, B-T, fluid get into pressurization cylinder rod chamber oil circuit with Double throttle check valve from the reversal valve to the hydraulic control one-way valve.Rodless cavity oil circuit magnetic valve gets electric, and rodless cavity is communicated with fuel tank, and main reversing valve B-T also makes rodless cavity be communicated with fuel tank simultaneously, thereby accomplishes the roller action.
4. from flumping roller: not under the situation, rod chamber and rodless cavity oil circuit electromagnet get electric, and rod chamber and rodless cavity all are communicated with fuel tank at oil pump, under self load effect, flow back to fuel tank to fluid, realize from flumping roller.
5. circulating filtration debugging: open motor, main reversing valve all must not be electric, and the spool of main reversing valve is in meta, and main system is not built pressure; Medium is directly through valve, and flexible coupling is passed through in-line filter again to oil pump; Check valve, the magnetic valve oil sump tank is accomplished the whole circulation filter process.
6. epicoele pressurization: normally in service at grinding machine, pressurization cylinder rod chamber pressure is badly in need of ftercompction and is remained in the range of pressure values of setting because of leaking or the superpressure oil extraction back pressure that resets is lower than setting value, at this moment only needs the oil pump starting, and fluid passes through main reversing valve.Hydraulic control one-way valve, Double throttle check valve get into the rod chamber oil circuit and carry out ftercompction up to the completion ftercompction that quits work of pressure sensor setting value rear motor oil pump group.
7. epicoele decompression: in service at grinding machine; Material particles volume ambassador grinding roller lifts; And the cylinder rod chamber volume reducing raises rod chamber pressure, decides rod chamber pressure need be decompressed to setting value in order to weigh, and the rod chamber electromagnet flashes; Rod chamber fluid gets into fuel tank from solenoid directional control valve through choke valve, reaches rod chamber and is decompressed to setting value.
Claims (3)
1. high-performance Vertical Mill hydraulic system; It is characterized in that: comprise the oil pump that is connected with fuel tank; The oil pump outlet is connected with a high pressure filter, connects main reversing valve behind the high pressure filter, and main reversing valve is connected with rodless cavity oil circuit, the rod chamber oil circuit of grinding roller oil cylinder respectively through first, second hydraulic control one-way valve; The inserted valve that the rodless cavity oil circuit is communicated with the rod chamber oil circuit is set between rodless cavity oil circuit and rod chamber oil circuit; Inserted valve is the form of pilot solenoid valve control, the rodless cavity oil circuit be provided with first magnetic valve, be connected with rodless cavity oil return circuit that fuel tank communicates, the rod chamber oil circuit be provided with second magnetic valve, be connected with rod chamber oil return circuit that fuel tank communicates; Connect through oil circuit between first, second magnetic valve, main reversing valve is parallelly connected with overflow valve.
2. high-performance Vertical Mill hydraulic system according to claim 1; It is characterized in that: on rod chamber oil circuit and rodless cavity oil circuit, be respectively equipped with first, second high back voltage filter, first, second high back voltage filter respectively be arranged on rod chamber oil circuit and rodless cavity oil circuit on the 3rd, the 4th hydraulic control one-way valve parallelly connected.
3. high-performance Vertical Mill hydraulic system according to claim 1 and 2 is characterized in that: filter is set before pilot solenoid valve, and filter is connected with accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220192691 CN202590890U (en) | 2012-05-03 | 2012-05-03 | High-performance vertical mill hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220192691 CN202590890U (en) | 2012-05-03 | 2012-05-03 | High-performance vertical mill hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202590890U true CN202590890U (en) | 2012-12-12 |
Family
ID=47308473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220192691 Expired - Lifetime CN202590890U (en) | 2012-05-03 | 2012-05-03 | High-performance vertical mill hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202590890U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314893A (en) * | 2014-08-27 | 2015-01-28 | 南京创贝高速传动机械有限公司 | Hydraulic servo control test bed system |
| CN104944326A (en) * | 2014-10-14 | 2015-09-30 | 江苏大峘集团有限公司 | Hydraulic roll ascending system for grinding rolls of vertical mills |
| CN105903536A (en) * | 2016-04-12 | 2016-08-31 | 李奇峰 | Vertical milling pressurization station |
| CN109127105A (en) * | 2018-07-24 | 2019-01-04 | 四川川润液压润滑设备有限公司 | A kind of Vertical Mill pressurized hydraulic system intelligent control method |
| CN110397640A (en) * | 2019-08-26 | 2019-11-01 | 常州液压成套设备厂有限公司 | Three sections of speed close the cylinder side valve block of door |
-
2012
- 2012-05-03 CN CN 201220192691 patent/CN202590890U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314893A (en) * | 2014-08-27 | 2015-01-28 | 南京创贝高速传动机械有限公司 | Hydraulic servo control test bed system |
| CN104944326A (en) * | 2014-10-14 | 2015-09-30 | 江苏大峘集团有限公司 | Hydraulic roll ascending system for grinding rolls of vertical mills |
| CN105903536A (en) * | 2016-04-12 | 2016-08-31 | 李奇峰 | Vertical milling pressurization station |
| CN109127105A (en) * | 2018-07-24 | 2019-01-04 | 四川川润液压润滑设备有限公司 | A kind of Vertical Mill pressurized hydraulic system intelligent control method |
| CN109127105B (en) * | 2018-07-24 | 2021-02-26 | 四川川润液压润滑设备有限公司 | Intelligent control method for vertical mill pressurizing hydraulic system |
| CN110397640A (en) * | 2019-08-26 | 2019-11-01 | 常州液压成套设备厂有限公司 | Three sections of speed close the cylinder side valve block of door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
|
| CX01 | Expiry of patent term |