CN203374290U - Device for draining liquid out of mine hydraulic support - Google Patents
Device for draining liquid out of mine hydraulic support Download PDFInfo
- Publication number
- CN203374290U CN203374290U CN201320404452.7U CN201320404452U CN203374290U CN 203374290 U CN203374290 U CN 203374290U CN 201320404452 U CN201320404452 U CN 201320404452U CN 203374290 U CN203374290 U CN 203374290U
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- hydraulic support
- hydraulic
- reservoir
- mainframe
- mine
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Abstract
The utility model relates to a device for draining liquid out of a mine hydraulic support and belongs to the technical field of maintaining devices of mine hydraulic devices. The device for draining liquid out of the mine hydraulic support is used for draining liquid out of the mine hydraulic support. An air cylinder and a contact are used for touching two three-position four-way pilot valves. The pilot valves are used for controlling a main valve on a main machine frame to perform steering so that stretching and retracting of a liquid cylinder are achieved. The liquid cylinder improves the pressure of air pressing gases inflated into the air cylinder to 8-10MP and the gases are then stored into two accumulators. When the liquid is drained, the high-pressure gases are connected to a hydraulic support control valve set through a pipeline and reciprocal movement of a hydraulic executing element is achieved as the valve set controls the high-pressure gases so that residual liquid in hydraulic elements and the executing element is drained out. By means of the device for draining liquid out of the mine hydraulic support, and the problems that when the temperature above a well is below zero DEG C, freezing damage and cracks caused to the hydraulic elements in the hydraulic support of downhole hoisting and oxidation and rusting of a hydraulic system when the hydraulic support is stored are solved. The device for draining liquid out of the mine hydraulic support is simple in structure, high in practicability and capable of effectively protecting hydraulic support equipment.
Description
Technical field
The utility model relates to a kind of to before well on mine hydraulic bracket or the equipment that carries out discharge opeing in other situation, belongs to mining hydraulic maintenance of equipment device technique field.
Background technology
In mine is produced, big-and-middle-sized hydraulic support need to be in down-hole, aboveground different location is used.When aboveground temperature reaches below 0 ℃, big-and-middle-sized hydraulic support is when upper well, due to hydraulic cylinders such as front-axle beam, column, tail boom, the side of hydraulic support are protected, end tune in retracted state, the ante-chamber of its hydraulic cylinder is in the topping up state, on hydraulic support, after well, find, because temperature is low, solidifying of liquid freeze that causing expands causes Hydraulic Elements frostbite, the bursting by freezing such as all kinds of hydraulic cylinders of hydraulic support, operating valve, safety valve, hydraulic lock to make device damage.In addition, when hydraulic support is deposited in aboveground, down-hole respectively, owing to there being liquid in hydraulic system, can cause hydraulic part oxidation, corrosion to cause device damage.In view of above reason, hydraulic support, or is deposited in situation in aboveground, down-hole when below 0 ℃, needing well at aboveground temperature, is necessary hydraulic support is carried out to the discharge opeing operation, there is no at present special-purpose liquid discharging apparatus, affected the discharge opeing operation of mine hydraulic bracket.
Summary of the invention
Technical problem to be solved in the utility model is to provide the device that a kind of mine hydraulic bracket carries out discharge opeing, and this device can utilize blast to exclude liquid in the hydraulic system of hydraulic support, avoids the damage of hydraulic support.
The technical scheme solved the problems of the technologies described above is:
A kind of device that mine hydraulic bracket is carried out to discharge opeing, it comprises mainframe, accumulator, fluid cylinder, reservoir, the air inlet-exhaust valve group, pilot valve, main valve, contact, fluid cylinder, reservoir is separately fixed at the both sides of mainframe, fluid cylinder cylinder bar and reservoir cylinder bar are positioned on same axis, fluid cylinder cylinder bar is relative with the front end of reservoir cylinder bar, be connected to the both sides of contact base, two accumulators are fixedly connected on mainframe, two accumulators connect to form linker by threeway and air inlet-exhaust valve group, the liquid suction valve group is connected with the reservoir back cavity by pipeline, two pilot valves and main valve are fixed on mainframe, two pilot valves lay respectively at the both sides of contact, two pilot valves are connected with two chambers of main valve respectively, main valve is connected with fluid cylinder.
The above-mentioned device that mine hydraulic bracket is carried out to discharge opeing, described liquid suction valve group is connected with lubrication box, pressure meter, safety valve respectively, and down-hole presses the air intake of the pressure ventilation pipe of wind to be connected with the liquid suction valve group by lubrication box.
The above-mentioned device that mine hydraulic bracket is carried out to discharge opeing, described two pilot valves are three-position four-way valve.
The above-mentioned device that mine hydraulic bracket is carried out to discharge opeing, described fluid cylinder, reservoir are fixedly connected on mainframe by junction plate respectively, and described accumulator is bolted on mainframe by anchor ear.
The beneficial effects of the utility model are:
The utility model touches two 3-position 4-way pilot valves by reservoir, contact, main valve on pilot valve main control system frame realizes that commutation realizes the flexible of fluid cylinder, fluid cylinder is stored in two accumulators after being pressurized to 8-10MP to the pressure general mood body filled in reservoir, during discharge opeing, gases at high pressure is connected on the hydraulic chock valve controller group and realizes that by valve group control gases at high pressure hydraulic actuator moves back and forth the residual liquid of discharging in Hydraulic Elements and executive component by pipeline.After adopting the utility model, solved Hydraulic Elements in the hydraulic support of down-hole gug when aboveground temperature is below 0 ℃ freezing, burst apart and the oxidation, the problem of corrosion of hydraulic system while depositing due to hydraulic support.The utility model is simple in structure, practical, and hydraulic support equipment has been played to protective effect.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is fluid pressure line connection diagram of the present utility model.
In figure, mark is as follows: mainframe 1, accumulator 2, fluid cylinder 3, reservoir 4, fluid cylinder cylinder bar 5, reservoir cylinder bar 6, air inlet-exhaust valve group 7, pilot valve 8, main valve 9, contact base 10, contact 11, hand-operated valve 12, anchor ear 13, junction plate 14, safety valve 15, lubrication box 16, pressure meter 17, pressure ventilation pipe 18, by discharge opeing support operating valve 19, liquid pool 20.
The specific embodiment
The utility model comprises mainframe 1, accumulator 2, fluid cylinder 3, reservoir 4, air inlet-exhaust valve group 7, pilot valve 8, main valve 9, contact 11.
In figure, show, mainframe 1 use channel-section steel and iron plate take the technique of welding, perforating, slotting, hitch to make, fluid cylinder 3, reservoir 4 are separately fixed at the both sides of mainframe 1 by bearing pin, by junction plate 14, be fixed on mainframe 1, fluid cylinder cylinder bar 5 and reservoir cylinder bar 6 are positioned on same axis, fluid cylinder cylinder bar 5 is relative with the front end of reservoir cylinder bar 6, is connected to the both sides of contact base 10, and contact base 10 is fixed on mainframe 1 by junction plate 14.
In figure, show, two accumulator 2 use anchor ears 13 are bolted on mainframe 1 by eight M12, and two accumulators 2 connect to form linker by threeway and air inlet-exhaust valve group 7, and liquid suction valve group 7 is connected with reservoir 4 back cavities by pipeline.
In figure, show, two pilot valves 8 and main valve 9 are fixed on mainframe 1, and two pilot valves 8 lay respectively at the both sides of contact 11, and two pilot valves 8 are three-position four-way valve, and two pilot valves 8 are connected with two chambers of main valve 9 respectively, and main valve 9 is connected with fluid cylinder 3.
In figure, show, liquid suction valve group 7 is connected with lubrication box 16, pressure meter 17, safety valve 15 respectively, and down-hole presses the air intake of the pressure ventilation pipe 18 of wind to be connected with liquid suction valve group 7 by lubrication box 16.
The course of work of the present utility model is as follows:
Down-hole presses the pressure ventilation pipe 18 of wind (0.6MP) to enter reservoir 4 back cavities through lubrication box 16 through liquid suction valve group 7 from air intake, at this moment reservoir 4 is owing to pressing wind application reservoir cylinder bar 6 to stretch out, 6 band moving contact 11 motions of reservoir cylinder bar, touch its action while moving to pilot valve 8, at this moment pilot valve 8 makes main valve 9 actions to the A chamber feed flow of main valve 9, the high pressure liquid (30MP) of main valve 9 control pumps is given fluid cylinder 3 back cavity feed flows, fluid cylinder cylinder bar 5 stretches out band moving contact 11 and moves in the opposite direction, make reservoir 4 back cavity air compressings, the air of compression arrives the interior storage of accumulator 2 through liquid suction valve group 7.Touch its action when contact 11 moves to pilot valve 8 place, at this moment pilot valve 8 is given the B chamber feed flow of main valve 9 simultaneously, main valve 9 commutations, and fluid cylinder 3 ante-chambers enter high pressure liquid, and fluid cylinder 3 back cavities return liquid, and fluid cylinder cylinder bar 5 is retracted, and is with moving contact 11 to pilot valve 8 places motion simultaneously.So repeatedly give and press the wind pressurization until accumulator 2 internal pressures reach (8-10MP), now can connect hydraulic support valve group is that hydraulic support carries out discharge opeing.
Claims (4)
1. a device that mine hydraulic bracket is carried out to discharge opeing, it is characterized in that: it comprises mainframe (1), accumulator (2), fluid cylinder (3), reservoir (4), air inlet-exhaust valve group (7), pilot valve (8), main valve (9), contact (11), fluid cylinder (3), reservoir (4) is separately fixed at the both sides of mainframe (1), fluid cylinder cylinder bar (5) and reservoir cylinder bar (6) are positioned on same axis, fluid cylinder cylinder bar (5) is relative with the front end of reservoir cylinder bar (6), be connected to the both sides of contact base (10), two accumulators (2) are fixedly connected on mainframe (1), two accumulators (2) connect to form linker by threeway and air inlet-exhaust valve group (7), liquid suction valve group (7) is connected with reservoir (4) back cavity by pipeline, two pilot valves (8) and main valve (9) are fixed on mainframe (1), two pilot valves (8) lay respectively at the both sides of contact (11), two pilot valves (8) are connected with two chambers of main valve (9) respectively, main valve (9) is connected with fluid cylinder (3).
2. the device that mine hydraulic bracket is carried out to discharge opeing according to claim 1, it is characterized in that: described liquid suction valve group (7) is connected with lubrication box (16), pressure meter (17), safety valve (15) respectively, and down-hole presses the air intake of the pressure ventilation pipe (18) of wind to be connected with liquid suction valve group (7) by lubrication box (16).
3. the device that mine hydraulic bracket is carried out to discharge opeing according to claim 2, it is characterized in that: described two pilot valves (8) are three-position four-way valve.
4. the device that mine hydraulic bracket is carried out to discharge opeing according to claim 2, it is characterized in that: it is upper that described fluid cylinder (3), reservoir (4) are fixedly connected on mainframe (1) by junction plate (14) respectively, and described accumulator (2) is bolted on mainframe (1) by anchor ear (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320404452.7U CN203374290U (en) | 2013-07-09 | 2013-07-09 | Device for draining liquid out of mine hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320404452.7U CN203374290U (en) | 2013-07-09 | 2013-07-09 | Device for draining liquid out of mine hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374290U true CN203374290U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320404452.7U Expired - Fee Related CN203374290U (en) | 2013-07-09 | 2013-07-09 | Device for draining liquid out of mine hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374290U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041747A (en) * | 2015-08-27 | 2015-11-11 | 三一重型装备有限公司 | Circulating device with pressure for oil cylinder corrosion prevention and hydraulic support |
| CN111594235A (en) * | 2020-04-22 | 2020-08-28 | 山东科技大学 | Buffer type mining supporting equipment and supporting method |
-
2013
- 2013-07-09 CN CN201320404452.7U patent/CN203374290U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041747A (en) * | 2015-08-27 | 2015-11-11 | 三一重型装备有限公司 | Circulating device with pressure for oil cylinder corrosion prevention and hydraulic support |
| CN111594235A (en) * | 2020-04-22 | 2020-08-28 | 山东科技大学 | Buffer type mining supporting equipment and supporting method |
| CN111594235B (en) * | 2020-04-22 | 2021-06-18 | 山东科技大学 | Buffer type mining supporting equipment and supporting 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: 20140101 Termination date: 20140709 |
|
| EXPY | Termination of patent right or utility model |