CN103573729A - Mine hoist hydraulic station - Google Patents
Mine hoist hydraulic station Download PDFInfo
- Publication number
- CN103573729A CN103573729A CN201310580380.6A CN201310580380A CN103573729A CN 103573729 A CN103573729 A CN 103573729A CN 201310580380 A CN201310580380 A CN 201310580380A CN 103573729 A CN103573729 A CN 103573729A
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- valve
- selector valve
- variable capacity
- vane pump
- capacity vane
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Abstract
The invention discloses a mine hoist hydraulic station, and belongs to the devices for providing pressure oil. The mine hoist hydraulic station is good in reliability and capable of generating large braking torque and small braking torque. The mine hoist hydraulic station comprises a first reversing valve, a second reserving valve and a working oil pump. The working oil pump is a duplex variable capacity vane pump (8), the high pressure oil port of the duplex variable capacity vane pump is in parallel connection and communication with the first reversing valve (2) and the second reversing valve (16), the low pressure oil port of the duplex variable capacity vane pump is in parallel connection and communication with the first reversing valve (2), an energy accumulator (20) and a third reversing valve (18) through a first check valve (7), and the oil outlet port of the first reversing valve (2) is connected with a fourth reversing valve (1). The mine hoist hydraulic station thoroughly overcomes the defects that a traditional device is large in braking inertia impact, fierce in shaking and the like, has the advantages of being stable in braking, safe, high in reliability and the like, and is applied to mine hoist brakes.
Description
Technical field
The present invention relates to a kind of hydraulic station, relating in particular to a kind ofly provides the hydraulic station of adjustable pressure oil for Mine Hoist Brake.
Background technique
Mine hoist is the key equipment in mine, is the important transport facility that contacts aboveground and down-hole.Hydraulic station is the important safety of mine hoist and controlling component, and it and disc-brake are combined into a set of complete braking system; Therefore the reliability of hydraulic station directly has influence on the safety in production of mine.At present, mine hoist hydraulic station adopts metering pump fuel feeding conventionally, therefore can only, for disc-brake provides a kind of braking moment, can not meet the requirement of disc-brake friction speed; Exist braking inertia impact large, shake the defects such as violent.
Summary of the invention
For the above-mentioned defect existing in prior art, the present invention aims to provide a kind of good reliability, can produce the mine hoist hydraulic station of two kinds of braking moments.
To achieve these goals, the present invention by the following technical solutions: comprise the first selector valve, the second selector valve and work oil pump; Described work oil pump is duplex variable capacity vane pump, the high pressure hydraulic fluid port of this duplex variable capacity vane pump is communicated with the first selector valve, the second selector valve parallel connection, and the low pressure hydraulic fluid port of this duplex variable capacity vane pump is communicated with by the first one-way valve and the first selector valve, accumulator and the parallel connection of the 3rd selector valve; The oil outlet of the first selector valve is connected to the 4th selector valve.
On the sys node of the first selector valve, the second selector valve and the pipeline between described high pressure hydraulic fluid port, be connected to the second relief valve, on the pipeline being communicated with accumulator at the first one-way valve, be in series with throttle valve, between this throttle valve and the first one-way valve, be connected to the first relief valve.
The present invention also comprises standby duplex variable capacity vane pump, the high pressure hydraulic fluid port of this standby duplex variable capacity vane pump and the high pressure hydraulic fluid port of duplex variable capacity vane pump are communicated with the first selector valve, the second selector valve by the 5th selector valve, and the low pressure hydraulic fluid port of this standby duplex variable capacity vane pump is parallel to the outlet of the first one-way valve by the second one-way valve; On the pipeline between the 5th selector valve and standby duplex variable capacity vane pump high pressure hydraulic fluid port, be connected to another one the second relief valve.
Described two high pressure hydraulic fluid ports are communicated with the 5th selector valve by high pressure filter respectively, and the first one-way valve and the second one-way valve are communicated with throttle valve by filter jointly.
In technique scheme, the first selector valve, the second selector valve, the 3rd selector valve, the 4th selector valve and selector valve are two-position four-way solenoid directional control valve, and the second relief valve is guide's electromagnetic proportion relief valve.
Compared with the prior art, the present invention is owing to having adopted technique scheme, original metering pump has been changed into duplex variable capacity vane pump and increased accumulator, therefore can obtain the pressure oil of two kinds of different flows, for disc-brake provides different size two kinds of braking moments, to adapt to the requirement of different disc-brake friction speeds; Thoroughly overcome prior device brake inertia impact large, shake the defects such as violent.Moreover, owing to having adopted two cover duplex variable capacity vane pump and ratio regulators, therefore can realize a set of work, a set of standby, effectively improve the safety reliability of mine hoist.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: the 4th selector valve 1, the first selector valve 2, the first relief valve 3, the first valve piece 4, the second relief valve 5, second valve piece 6, the first one-way valve 7, duplex variable capacity vane pump 8, the 5th selector valve 9, conversion valve block 10, filter 11, standby duplex variable capacity vane pump 12, service valve piece 13, the second one-way valve 14, high pressure filter 15, the second selector valve 16, dead block break 17, the 3rd selector valve 18, throttle valve 19, accumulator 20, the drum brake 21 of moving about.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the invention will be further described:
As shown in Figure 1: the high pressure hydraulic fluid port of duplex variable capacity vane pump 8 is communicated with the first selector valve 2, the second selector valve 16 parallel connections, and the low pressure hydraulic fluid port of this duplex variable capacity vane pump is communicated with the first selector valve 2, accumulator 20 and the 3rd selector valve 18 parallel connections by the first one-way valve 7; On the fuel-displaced pipeline of the first selector valve 2, be connected to the 4th selector valve 1.
For the ease of regulating oil pressure, on the pipeline between the first selector valve 2, the sys node of the second selector valve 16 and the high pressure hydraulic fluid port of duplex variable capacity vane pump 8, be connected to the second relief valve 5.The size that changes the second relief valve 5 control electric currents can realize the variation of system oil pressure, thereby reaches the object of adjustable brake moment size.When controlling electric current increase, system oil pressure raises, disc-brake is opened a sluice gate; When control electric current reduces, system oil pressure reduces, disc-brake closes a floodgate; When control electric current is decreased to zero, system oil pressure minimum (being residual voltage), lift is in complete braking state.For the ease of protection accumulator 20; simultaneously also in order to avoid emergency braking to form inertia impact to the drum brake 21 of moving about when having a power failure; on the pipeline being communicated with accumulator 20 at the first one-way valve 7, be in series with throttle valve 19, between this throttle valve and the first one-way valve 7, be connected to the first relief valve 3.The opening degree that changes throttle valve can make the first relief valve 3 force value be stabilized in setting range.
In order to improve safety reliability, in system, be also provided with standby duplex variable capacity vane pump 12.The high pressure hydraulic fluid port of this standby duplex variable capacity vane pump and the high pressure hydraulic fluid port of duplex variable capacity vane pump 8 are communicated with the first selector valve 2, the second selector valve 16 parallel connections by the 5th selector valve 9 jointly, and the low pressure hydraulic fluid port of this standby duplex variable capacity vane pump is parallel to the outlet of the first one-way valve 7 by the second one-way valve 14; In like manner, for the ease of regulating oil pressure, on the pipeline between the 5th selector valve 9 and standby duplex variable capacity vane pump 12 high pressure hydraulic fluid ports, be connected to another one the second relief valve 5.
For fear of pipeline blockage, described two high pressure hydraulic fluid ports are communicated with the 5th selector valve 9 by high pressure filter 15 respectively, and the first one-way valve 7 and the common filter 11 that passes through of the second one-way valve 14 are communicated with throttle valve 19.
In order to make compact structure, the 4th selector valve 1, the first selector valve 2, the first relief valve 3, the second selector valve 16, the 3rd selector valve 18, throttle valve 19 and accumulator 20 are all integrated on the first valve piece 4, the second relief valve 5, the first one-way valve 7 and high pressure filter 15 are integrated on second valve piece 6, the 5th selector valve 9 and filter 11 are integrated on conversion valve block 10,13 of service valve pieces are integrated with the second one-way valve 14, another one high pressure filter 15 and another one the second relief valve 5
During work, the oil outlet of the second selector valve 16 is communicated with dead block break 17, the oil outlet of the 4th selector valve 1 is communicated with the drum brake 21 of moving about.
Working principle: during normal operation, the second selector valve 16, the first selector valve 2, the 4th selector valve 1 electric and in right position, the pressure oil of high pressure hydraulic fluid port is leaded up to the second selector valve 16 and is flowed to dead block break 17 after the 5th selector valve 9, separately leads up to the first selector valve 2, the 4th selector valve 1 to flow to the drum brake 21 of moving about; When the control electric current of the second relief valve 5 is decreased to zero, system oil pressure minimum (being residual voltage), lift is in complete braking state.
When duplex variable capacity vane pump 8 breaks down, only the 5th selector valve 9 need be switched to right position can continue fuel feeding by standby duplex variable capacity vane pump 12, thereby realizes Safety Redundancy.
If occur, have a power failure suddenly, the necessary emergency braking of lift; Now duplex variable capacity vane pump 8 quits work, the second relief valve 5, the second selector valve 16, the first selector valve 2 dead electricity, the second selector valve 16 and the first selector valve 2 are all in illustrated left position, the pressure release at once of the oil pressure of dead block break 17 is zero, and dead block break 17 is in braking state; Accumulator 20 is by the first selector valve 2, the 4th selector valve 1 to drum brake 21 repairings of moving about, and the oil pressure of this drum brake of moving about is reduced to the force value that the first relief valve 3 is set, thereby realizes first order braking.The 4th selector valve 1 power-off after pressurize time delay a period of time and in illustrated left position, so the pressure release that drum brake 21 oil pressure that move about fall is zero, realize braking completely; Meanwhile, the 3rd selector valve 18 energisings are in right position, and accumulator 20 is by the 3rd selector valve 18 pressure releases.
Claims (4)
1. a mine hoist hydraulic station, comprises the first selector valve, the second selector valve and work oil pump; It is characterized in that: described work oil pump is duplex variable capacity vane pump (8), the high pressure hydraulic fluid port of this duplex variable capacity vane pump is communicated with the first selector valve (2), the second selector valve (16) parallel connection, and the low pressure hydraulic fluid port of this duplex variable capacity vane pump is communicated with by the first one-way valve (7) and the first selector valve (2), accumulator (20) and the parallel connection of the 3rd selector valve (18); The oil outlet of the first selector valve (2) is connected to the 4th selector valve (1).
2. mine hoist hydraulic according to claim 1 station, it is characterized in that: on the sys node of the first selector valve (2), the second selector valve (16) and the pipeline between described high pressure hydraulic fluid port, be connected to the second relief valve (5), on the pipeline being communicated with accumulator (20) at the first one-way valve (7), be in series with throttle valve (19), between this throttle valve and the first one-way valve (7), be connected to the first relief valve (3).
3. mine hoist hydraulic according to claim 1 and 2 station, it is characterized in that: also comprise standby duplex variable capacity vane pump (12), the high pressure hydraulic fluid port of the high pressure hydraulic fluid port of this standby duplex variable capacity vane pump and duplex variable capacity vane pump (8) is communicated with the first selector valve (2), the second selector valve (16) respectively by the 5th selector valve (9), and the low pressure hydraulic fluid port of this standby duplex variable capacity vane pump is parallel to the outlet of the first one-way valve (7) by the second one-way valve (14); On the pipeline between the 5th selector valve (9) and standby duplex variable capacity vane pump (12) high pressure hydraulic fluid port, be connected to another one the second relief valve (5).
4. mine hoist hydraulic according to claim 3 station, it is characterized in that: described two high pressure hydraulic fluid ports are communicated with the 5th selector valve (9) by high pressure filter (15) respectively, the first one-way valve (7) and the second one-way valve (14) are communicated with throttle valve (19) by filter (11) jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310580380.6A CN103573729A (en) | 2013-11-19 | 2013-11-19 | Mine hoist hydraulic station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310580380.6A CN103573729A (en) | 2013-11-19 | 2013-11-19 | Mine hoist hydraulic station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103573729A true CN103573729A (en) | 2014-02-12 |
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ID=50046247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310580380.6A Pending CN103573729A (en) | 2013-11-19 | 2013-11-19 | Mine hoist hydraulic station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103573729A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747541A (en) * | 2015-03-24 | 2015-07-01 | 上海大学 | Hydraulic power station of grouting pump |
| CN104776003A (en) * | 2014-07-17 | 2015-07-15 | 飞翼股份有限公司 | Piston type industrial conveying pump |
| CN104989691A (en) * | 2015-07-10 | 2015-10-21 | 重庆市博平液压机械有限公司 | Centralized pressure supplying method of hydraulic stations |
| CN107575438A (en) * | 2017-08-11 | 2018-01-12 | 江苏永钢集团有限公司 | A kind of online energy conserving system of two independent hydraulic stations |
| WO2020248406A1 (en) * | 2019-06-10 | 2020-12-17 | 枣庄学院 | Constant decelerating hydraulic system for safe shifting braking of hoister and braking method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006322578A (en) * | 2005-05-20 | 2006-11-30 | Shin Caterpillar Mitsubishi Ltd | Fluid pressure circuit |
| JP2009024778A (en) * | 2007-07-19 | 2009-02-05 | Caterpillar Japan Ltd | Generator driving control device and working machine |
| CN101475130A (en) * | 2009-01-22 | 2009-07-08 | 重庆键英液压机电有限公司 | Hydraulic time-delay double-stage braking hoister hydraulic station |
| CN202007802U (en) * | 2011-04-29 | 2011-10-12 | 浙江迦南科技股份有限公司 | Hydraulic system |
| CN102241374A (en) * | 2010-05-14 | 2011-11-16 | 喻杰 | Safety braking system for lifter |
| JP2012159177A (en) * | 2011-02-02 | 2012-08-23 | Hitachi Constr Mach Co Ltd | Hydraulic driving device for work machine |
-
2013
- 2013-11-19 CN CN201310580380.6A patent/CN103573729A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006322578A (en) * | 2005-05-20 | 2006-11-30 | Shin Caterpillar Mitsubishi Ltd | Fluid pressure circuit |
| JP2009024778A (en) * | 2007-07-19 | 2009-02-05 | Caterpillar Japan Ltd | Generator driving control device and working machine |
| CN101475130A (en) * | 2009-01-22 | 2009-07-08 | 重庆键英液压机电有限公司 | Hydraulic time-delay double-stage braking hoister hydraulic station |
| CN102241374A (en) * | 2010-05-14 | 2011-11-16 | 喻杰 | Safety braking system for lifter |
| JP2012159177A (en) * | 2011-02-02 | 2012-08-23 | Hitachi Constr Mach Co Ltd | Hydraulic driving device for work machine |
| CN202007802U (en) * | 2011-04-29 | 2011-10-12 | 浙江迦南科技股份有限公司 | Hydraulic system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776003A (en) * | 2014-07-17 | 2015-07-15 | 飞翼股份有限公司 | Piston type industrial conveying pump |
| CN104776003B (en) * | 2014-07-17 | 2016-05-11 | 飞翼股份有限公司 | A kind of piston type industry delivery pump |
| CN104747541A (en) * | 2015-03-24 | 2015-07-01 | 上海大学 | Hydraulic power station of grouting pump |
| CN104989691A (en) * | 2015-07-10 | 2015-10-21 | 重庆市博平液压机械有限公司 | Centralized pressure supplying method of hydraulic stations |
| CN107575438A (en) * | 2017-08-11 | 2018-01-12 | 江苏永钢集团有限公司 | A kind of online energy conserving system of two independent hydraulic stations |
| WO2020248406A1 (en) * | 2019-06-10 | 2020-12-17 | 枣庄学院 | Constant decelerating hydraulic system for safe shifting braking of hoister and braking method |
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Application publication date: 20140212 |