CN2311605Y - Drilling flat car three linkage control valve - Google Patents
Drilling flat car three linkage control valve Download PDFInfo
- Publication number
- CN2311605Y CN2311605Y CN 97242633 CN97242633U CN2311605Y CN 2311605 Y CN2311605 Y CN 2311605Y CN 97242633 CN97242633 CN 97242633 CN 97242633 U CN97242633 U CN 97242633U CN 2311605 Y CN2311605 Y CN 2311605Y
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- Prior art keywords
- valve
- control
- pressure
- control valve
- valves
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- Expired - Fee Related
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Abstract
The utility model relates to a drilling trolley three linkage control valve, comprising a pressure control valve and three electrohydraulic control valves with same structure. The three electrohydraulic control valve are all composed of an electromagnetic valve, a guide hydraulic valve and a switching valve, and each switching valve are respectively controlled by the guide hydraulic valve and the electromagnetic valve. The pressure relief openings of each switching valve are communicated, the pressure control valve is positioned between a high pressure inlet and outlet openings, so a set of electromagnetic valve and switching valve and a large and complicated air reservoir can be omitted. The utility model has stronger adaptability to operational environment and can reduce the failure rate of a triple valve used for trolley.
Description
The utility model relates to the percussion tool that rock, ore extraction are used, and specifically refers to jumbo three control valves.
The present jumbo that uses in China is all from external import, and three valves that use in its control system have manual control and pneumatic control, manually control control stick and need bigger operating personnel space, and operating personnel's danger is very big.The actual job working condition of the jumbo that uses in China mostly is very abominable; therefore can only be from external import gas control three valves; and gas control three valves need be with stable; clean source of the gas is as the guide; earlier control gas commutating valve by air-operated solenoid valve; gas in the gas commutating valve control air reservoir; act on hydraulicdirectional control valve by another group electromagnetic valve again; belong to pneumatic control; job site condition from reality; this three valves work under bad environment; the pressure of the liquid of control is up to 28MPa; discharge capacity reaches 120L/min; therefore the fault rate of gas control three valves of chassis is high especially, in case gas control three valves break down, a then whole chassis just must be shut down maintenance; and the shutdown of chassis will make a mine or a construction of tunnel quit work, and its loss is huge.
The purpose of this utility model provides a kind of jumbo three control valves, use this control valve after, the environment for use of whole chassis is unrestricted, has reduced the fault rate of three valves.
To achieve these goals, the utility model adopts following technical scheme: three control valves include three electric hydraulic control valves that structure is identical, and pressure-control valve, wherein, three electric hydraulic control valves constitute by electromagnetic valve, guide's hydraulic valve, reversal valve, each reversal valve is all controlled by guide's hydraulic valve, electromagnetic valve successively, and the pressure relief opening of each reversal valve all communicates, and pressure-control valve is connected between high-pressure inlet and the pressure relief opening.
Because the utility model adopts electrichydraulic control, promptly replace original pneumatic control valve by electromagnetic valve and guide's hydraulic valve, thereby save cover electromagnetic valve and a reversal valve and huge, a complicated air reservoir and a pneumatics pump, make that the environment for use compliance of jumbo is stronger, reduce the fault rate of three used valves of chassis.
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is existing pneumatic control three valve principle schematic.
Fig. 2 is the utility model principle schematic.
Fig. 3 is the utility model structural representation
Fig. 4 is the schematic top plan view of Fig. 3.
See also shown in Figure 1, existing three valves are made of pneuamtic part 1 and hydraulic control valve part 2, pneuamtic part 1 contains three groups of gas commutating valves, air reservoir 11, and each group gas commutating valve includes each one of admission valve and air outlet valve, three groups of totally six valves, hydraulic control valve part 2 is controlled by pneuamtic part 1, three valves like this, do not reach under certain requirement as dust, air pressure at rugged environment as foregoing, can usually break down, be directed at whole chassis and quit work; Also need the outfit and the complex structure of big gasholder outfit, gas purification and pneumatics pump on the other hand.
See also shown in Figure 2, three control valves 3 of the present utility model include three electric hydraulic control valves 31 that structure is identical, 32,33, pressure- control valve 34,35 wherein, electric hydraulic control valve 31,32,33 by electromagnetic valve, guide's hydraulic valve, reversal valve constitutes, each reversal valve is all successively by guide's hydraulic valve, electromagnetic valve is controlled, the pressure relief opening T of each reversal valve all communicates, pressure- control valve 34,35 are connected to high-pressure inlet P1, P2, between P3 and the pressure relief opening T, the quantity of pressure-control valve can connect one or two, each electric hydraulic control valve 31,32,33 all have two high pressure oil-out A1, B1; A2, B2; A3, B3; Three valves have six high pressure oil-outs.
Please consult Fig. 3-shown in Figure 4 again, structurally, whole three control valves are made of one, high-pressure inlet P1, the P2 of pressure- control valve 34,35, each reversal valve, P3, pressure relief opening T, high pressure oil-out A1, B1; A2, B2; A3, B3 are made into a hydraulic manifold block, reversal valve, guide's hydraulic valve, electromagnetic valve place on the hydraulic manifold block successively, promptly, three identical electric hydraulic control valve rows of structure are located on the hydraulic manifold block, make the appearance and size of its whole three control valves identical, so that with the supporting installation of chassis with original three valves.
Claims (2)
1, a kind of jumbo three control valves, include three electric hydraulic control valves that structure is identical, and pressure-control valve, it is characterized in that: three electric hydraulic control valves constitute by electromagnetic valve, guide's hydraulic valve, reversal valve, each reversal valve is all controlled by guide's hydraulic valve, electromagnetic valve successively, the pressure relief opening of each reversal valve all communicates, and pressure-control valve is connected between high-pressure inlet and the pressure relief opening.
2, jumbo three control valves as claimed in claim 1, it is characterized in that: the high-pressure inlet of said pressure-control valve, each reversal valve, pressure relief opening, high pressure oil-out are made into a hydraulic manifold block, and reversal valve, guide's hydraulic valve, electromagnetic valve place on the hydraulic manifold block successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242633 CN2311605Y (en) | 1997-11-13 | 1997-11-13 | Drilling flat car three linkage control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242633 CN2311605Y (en) | 1997-11-13 | 1997-11-13 | Drilling flat car three linkage control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2311605Y true CN2311605Y (en) | 1999-03-24 |
Family
ID=33951799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97242633 Expired - Fee Related CN2311605Y (en) | 1997-11-13 | 1997-11-13 | Drilling flat car three linkage control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2311605Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434513A (en) * | 2011-11-04 | 2012-05-02 | 广西恒日科技有限公司 | Integrated control hydraulic valve system for rock driller |
| CN104728203A (en) * | 2015-03-26 | 2015-06-24 | 北京煤科天玛自动化科技有限公司 | Electro-hydraulic control reversing valve with internal pressure relief function |
-
1997
- 1997-11-13 CN CN 97242633 patent/CN2311605Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434513A (en) * | 2011-11-04 | 2012-05-02 | 广西恒日科技有限公司 | Integrated control hydraulic valve system for rock driller |
| CN102434513B (en) * | 2011-11-04 | 2014-11-05 | 广西恒日科技有限公司 | Integrated control hydraulic valve system for rock driller |
| CN104728203A (en) * | 2015-03-26 | 2015-06-24 | 北京煤科天玛自动化科技有限公司 | Electro-hydraulic control reversing valve with internal pressure relief function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |