CN202418078U - Drilling integration valve of rock drill - Google Patents
Drilling integration valve of rock drill Download PDFInfo
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- CN202418078U CN202418078U CN2012200283914U CN201220028391U CN202418078U CN 202418078 U CN202418078 U CN 202418078U CN 2012200283914 U CN2012200283914 U CN 2012200283914U CN 201220028391 U CN201220028391 U CN 201220028391U CN 202418078 U CN202418078 U CN 202418078U
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Abstract
The utility model discloses a drilling integration valve of a rock drill. The integration valve enables hydraulic controlled directional valves for controlling slow low impact and rapid high impact, controlling a drill rod to go ahead and draw back, controlling the rock drill to rotate and controlling a left track and a right tack of a rock drilling rig to travel respectively, pressure regulating valve groups and the like to be integrated on one valve, so that a rock drilling control system of the rock drill is simple and compact in structure, easy to operate and capable of decreasing failure rate. A plurality of shuttle valves are used for gating of oil pressure of loads to guide the channel with the maximum pressure to a load pressure sensitive control port of a variable pump, and accordingly energy saving is effectively achieved.
Description
Technical field
The utility model relates to the rock drill technical field, is specifically related to a kind of rock drilling integrated valve of rock drill.
Background technique
Rock drill is a kind of machinery that is used for rock-boring, and in process was cut a hole in the tunnel of colliery, black and sub-terrain mines such as coloured, rock drill was being played the part of crucial role, in realizing rock gangway mechanized process, plays an important role.Rock drill can be divided into pneumatic rock drill, diesel rock frill, electric rock drill and hydraulic gate etc. by its power source.
Hydraulic gate is a kind of rock drill of using always; Hydraulic gate mainly is by oil hydraulic pump power to be provided; Through the work of hydrovalve control rock drill; General rock drilling operation can be divided into little at a slow speed impact and large impact, drill steel advance and retreat, rock drill revolution, and rock drill left and right sides crawler travel fast.The equipment such as hydrovalve of above each operation of control all are individual components in the existing technology; And according to certain way they are coupled together through pipeline; Cause thus that line arrangement is mixed and disorderly, the space is crowded, system leak point is many, the increase probability of failure; Reduce the reliability of system, also increased the processing cost of device.
The model utility content
In view of this; The utility model provides a kind of rock drilling integrated valve of rock drill; Hydrovalve and pressure regulator valve group that this integrated valve will be controlled rock drill impact, propelling, revolution and drill carriage walking are integrated in the valve body; Can improve level of integration, controllability and the system reliability of hydrovalve, reduce device cost simultaneously.
The utility model is to adopt following technological means to realize: a kind of rock drilling integrated valve of rock drill comprises valve body and is integrated in the pilot operated directional control valve group of valve inner, pressure regulator valve group, slow supply oil valve group, one way pressure-reducing valve, oil-feed piece and transition block;
Said oil-feed piece comprises the responsive control interface LS1 of precursor overflow valve E4, relief valve E5, filter core F1, throttle valve N18, throttle valve N19, oil inlet P 1, oil return inlet T 1 and induced pressure; Oil inlet P 1 links to each other with the filler opening E4-P of relief valve E4 with filter F 1 through throttle orifice N18, and the oil outlet E4-T of relief valve E4 links to each other with oil return inlet T 1, and oil inlet P 1 links to each other with the filler opening E5-P of relief valve E5, and oil outlet E5-T links to each other with oil return inlet T 1;
Said transition block comprises the responsive control interface LS2 of precursor overflow valve E12, oil inlet P 2, oil return inlet T 2 and induced pressure; Precursor overflow valve E12 is connected between oil inlet P 2 and the oil return inlet T 2;
Said pilot operated directional control valve group comprises 5 three seven logical pilot operated directional control valve, shuttle valve X8, shuttle valve X9, shuttle valve X10, shuttle valve X11 and shuttle valve X12; The working hole A of each pilot operated directional control valve communicates with working hole X1, and working hole B communicates with working hole X2; The spool switching-over of pilot control opening d1 and pilot control opening d2 control pilot operated directional control valve;
Said 5 three seven logical pilot operated directional control valves are respectively first pilot operated directional control valve that is used to control the rock drill impact, second pilot operated directional control valve, control rock drill left side track-type the 3rd pilot operated directional control valve, the 4th pilot operated directional control valve of controlling the walking of rock drill right-hand track chiain and rotating the 5th pilot operated directional control valve of control rock drill that the control rock drill advances;
The working hole X1 of said first pilot operated directional control valve and working hole X2 are connected two filler openings of shuttle valve X8 respectively, and the oil outlet of shuttle valve X8 links to each other with the filler opening of shuttle valve X9, and the oil outlet of shuttle valve X9 connects the responsive control interface LS1 of induced pressure in the oil-feed piece;
The working hole X1 of said second pilot operated directional control valve and working hole X2 are connected two filler openings of shuttle valve X10 respectively, and the oil outlet of shuttle valve X10 links to each other with the filler opening of shuttle valve X11; The oil outlet of shuttle valve X11 links to each other with another filler opening of shuttle valve X9;
The working hole X1 of said the 3rd pilot operated directional control valve links to each other with the filler opening of shuttle valve X10 with working hole X2 and after connecing, and the oil outlet of shuttle valve X12 links to each other with another filler opening of shuttle valve X11;
The working hole X1 of said the 4th pilot operated directional control valve links to each other with another filler opening of shuttle valve X12 with working hole X2 and after connecing;
Behind one way pressure-reducing valve of the oil inlet P of said first pilot operated directional control valve, second pilot operated directional control valve, the 3rd pilot operated directional control valve and the 4th pilot operated directional control valve serial connection with the oil-feed piece in oil inlet P 1 link to each other, two oil outlet T of each pilot operated directional control valve and connect afterwards with the oil-feed piece in oil outlet T1 be communicated with;
The working hole X1 of said the 5th pilot operated directional control valve links to each other with the responsive control interface LS2 of the induced pressure of transition block with working hole X2 and after connecing; Behind one way pressure-reducing valve of oil inlet P serial connection with transition block in oil inlet P 2 link to each other, two oil outlet T and connect afterwards with transition block in oil outlet T2 be communicated with;
Said pressure regulator valve group has 3 covers; Be respectively applied for and regulate first, second and the working hole A of the 5th pilot operated directional control valve and the return pressure of working hole B: every cover pressure regulator valve group all comprises two precursor overflow valves; A precursor overflow valve is serially connected between the working hole X1 and return opening of pilot operated directional control valve, and another precursor overflow valve is serially connected between the working hole X2 and return opening of pilot operated directional control valve;
Said slow supply oil valve group has 4 covers, and respectively slow supply oil is carried out on the fuel feeding road of 4 working holes of second pilot operated directional control valve and the 5th pilot operated directional control valve: every cover slow supply oil valve group all comprises an one-way valve and a precursor overflow valve; One-way valve is connected in reverse parallel in the filler opening and the oil outlet two ends of precursor overflow valve, and precursor overflow valve is serially connected between the working hole and return opening of pilot operated directional control valve;
Be respectively equipped with on the said valve body with system in the working interface that links to each other with working hole B of the working hole A of each pilot operated directional control valve; Be connected with oil inlet P 1 in the oil-feed piece the first oil-feed interface with the oil-feed piece in the first oil return interface T1 that is connected of oil outlet T1, and the first pressure feedback interface that is connected with the oil outlet of shuttle valve X9; The second oil-feed interface that links to each other with oil inlet P 2 in the transition block, the second oil return interface that is connected with oil outlet T2 in the transition block, and the responsive control interface of second induced pressure that is connected with the oil outlet of shuttle valve X15; The guide's control interface that links to each other respectively with the pilot control opening d1 of each pilot operated directional control valve in the pilot operated directional control valve group and pilot control opening d2; Be used for regulating the slow supply oil adjusting knob of four relief valve pressure in the said 4 cover slow supply oil valve groups, be used for regulating the rock drilling pressure regulation button of 6 relief valve pressure of said three cover pressure regulator valve groups; Regulate the oil-feed pressure regulation button of relief valve E4 pressure in the oil-feed piece, regulate the transition pressure regulation button of relief valve E12 in the transition block.
The rock drilling integrated valve of a kind of rock drill of the utility model will control little at a slow speed impact respectively and large impact, drill steel advance and retreat fast; The rock drill revolution; And drill wagon for jack hammer left and right sides track-type pilot operated directional control valve and pressure regulator valve group etc. all are integrated on the valve body; Make simple and compact for structure, the easy operating of rock drilling control system of rock drill, reduce rate of fault; Adopt a plurality of shuttle valves that the oil pressure of load is carried out gating, the pass that pressure is maximum has reached energy-conservation effect thus to the responsive control mouth of the induced pressure of variable displacement pump.
Description of drawings
Fig. 1 is the schematic diagram of rock drilling integrated valve of a kind of rock drill of the utility model.
Fig. 2 is the valve body schematic representation of rock drilling integrated valve of a kind of rock drill of the utility model, and a is a plan view, and b is a plan view, and c is a worm's eye view, wherein,
The 1-first oil-feed interface, the 2-first oil return interface, the 3-first pressure feedback interface; The 4-second oil-feed interface, the 5-second oil return interface, the 6-second pressure feedback interface; The 7-working interface, 8-guide's control interface, 9-slow supply oil adjusting knob; 10-oil-feed pressure regulation button, 11-transition pressure regulation button, 12-rock drilling pressure regulation button.
Embodiment
The utility model provides a kind of rock drilling integrated valve of rock drill, the pilot operated directional control valve group, pressure regulator valve group, slow supply oil valve group, one way pressure-reducing valve, oil-feed piece and the transition block that comprise valve body and be integrated in valve inner:
The pilot operated directional control valve group comprises the first hydraulicdirectional control valve Y7 of control rock drill impact, the second hydraulicdirectional control valve Y8, control rock drill left side track-type the 3rd hydraulicdirectional control valve Y9, the 4th hydraulicdirectional control valve Y10 that controls the walking of rock drill right-hand track chiain, rotating the 5th hydraulicdirectional control valve Y11 of control rock drill that the control rock drill advances;
More than five hydraulicdirectional control valves be three seven logical hydraulicdirectional control valves, port be respectively working hole A, working hole B, oil inlet P, two oil outlet T and connect, working hole X1, working hole X2, pilot control opening is d1 and d2; When pilot control opening d1 and d2 did not all feed pressure oil, when spool was in meta, oil inlet P was obstructed, and oil outlet T all communicates with working hole A, working hole X1, working hole B and working hole X2; When pilot control opening d1 fed pressure oil, spool was in position, a left side, and oil outlet T is obstructed, and oil inlet P communicates with working hole X2 and working hole B, and oil outlet T communicates with working hole A and working hole X1; When pilot control opening d2 fed pressure oil, spool was in right position, and oil outlet T is obstructed, and oil inlet P communicates with working hole X1 and working hole A, and oil outlet T communicates with working hole B and working hole X2.
The working hole Y7-X1 of the first pilot operated directional control valve Y7 and working hole Y7-X2 are connected two filler openings of shuttle valve X8 respectively, and the oil outlet of shuttle valve X8 links to each other with the filler opening of shuttle valve X9; Behind the oil inlet P serial connection one way pressure-reducing valve G1 with the oil-feed piece in oil inlet P 1 link to each other, two oil outlet T and connect afterwards with the oil-feed piece in oil outlet T1 be communicated with; The control mouth K of one way pressure-reducing valve G1 connects the oil outlet of shuttle valve X8; The oil outlet of shuttle valve X9 connects the first pressure feedback interface 3 of valve body;
The working hole Y8-X1 of the said second pilot operated directional control valve Y8 and working hole Y8-X2 are connected two filler openings of shuttle valve X10 respectively; Behind the oil inlet P serial connection one way pressure-reducing valve G2 with the oil-feed piece in oil inlet P 1 link to each other, two oil outlet T and connect afterwards with the oil-feed piece in oil outlet T1 be communicated with; The oil outlet of shuttle valve X10 links to each other with the filler opening of K the shuttle valve X11 of control mouth of one way pressure-reducing valve G2; The oil outlet of shuttle valve X11 links to each other with another filler opening of shuttle valve X9;
Behind the oil inlet P of said the 3rd pilot operated directional control valve Y9 serial connection one way pressure-reducing valve G3 with the oil-feed piece in oil inlet P 1 link to each other, two oil outlet T and connect afterwards with the oil-feed piece in oil outlet T1 be communicated with; The control mouth of working hole Y9-X1, working hole Y9-X2 and one way pressure-reducing valve G3 also connects the back and links to each other with the filler opening of shuttle valve X12, and the oil outlet of shuttle valve X12 links to each other with another filler opening of shuttle valve X11;
Behind the oil inlet P of said the 4th pilot operated directional control valve Y10 serial connection one way pressure-reducing valve G4 with the oil-feed piece in oil inlet P 1 link to each other, two oil outlet T and connect afterwards with the oil-feed piece in oil outlet T1 be communicated with; The control mouth of working hole Y10-X1, working hole Y10-X2 and one way pressure-reducing valve G4 also connects the back and links to each other with another filler opening of shuttle valve X12;
Behind the oil inlet P of said the 5th pilot operated directional control valve Y11 serial connection one way pressure-reducing valve G5 with the oil-feed piece in oil inlet P 1 link to each other, two oil outlet T and connect afterwards with the oil-feed piece in oil outlet T1 be communicated with; Working hole X1 links to each other with the filler opening of shuttle valve X15, and working hole X2 links to each other with another filler opening of shuttle valve X15, and the oil outlet of shuttle valve X15 links to each other with the second pressure feedback interface on the valve body;
Also comprise shuttle valve X8, X9, X10, X11, X12 in the rock drilling integrated valve; Effect is that the pressure oil in first to the 4th pilot operated directional control valve is relatively exported, and the oil outlet of shuttle valve X9 of leading up to that force value is maximum exports the responsive control mouthful LS1 of induced pressure of oil pump one to;
Because the rock drill rotary motor needs independent fuel feeding; Therefore the oil-feed piece is used for to four the pilot operated directional control valve fuel feeding of integrated valve except that the 5th pilot operated directional control valve; And the superelevation not of the oil pressure in the protection fuel feeding road, the oil inlet P 1 of oil-feed module is connected the valve body first oil-feed interface and the first oil return interface respectively with oil return inlet T 1; Comprise precursor overflow valve E4, relief valve E5, filter core F1, throttle valve N18, throttle valve N19; The oil inlet P 1 of oil-feed piece links to each other with the filler opening E4-P of relief valve E4 with filter F 1 through throttle orifice N18; The oil outlet E4-T of relief valve E4 links to each other with the oil return inlet T 1 of oil-feed piece; The oil inlet P 1 of oil-feed piece links to each other with the filler opening E5-P of relief valve E5, and oil outlet E5-T links to each other with the oil return inlet T 1 of oil-feed piece;
The pressure regulator valve group of return pressure that is used to regulate two working holes of the first pilot operated directional control valve Y7 in the three cover pressure regulator valve groups comprises relief valve E6 and relief valve E7: the filler opening E6-P of relief valve E6 links to each other with working hole Y7-X2 with the working hole Y7-X1 that the filler opening E7-P of relief valve E7 distinguishes the first pilot operated directional control valve Y7; The return opening E6-T of relief valve E6 and the return opening E7-T of relief valve E7 all are connected with the return opening of oil-feed piece; Relief valve E6 and relief valve E7 are serially connected in respectively in the oil circuit of two working hole X1 and X2 of pilot operated directional control valve of control rock drill large and small impact; Through regulating the force value of relief valve E6 and E7; Can Control work mouth X1 and the oil pressure of X2 place oil circuit, again because working hole X1 and X2 and respectively with the working hole A1 and the A2 connection of pilot operated directional control valve, thus; The setup pressure value may command working hole A1 of relief valve E6 and E7 and the pressure of A2 are finally controlled the pressure of the large and small impact of rock drill;
The return pressure pressure regulator valve group that is used to regulate two working holes of the second pilot operated directional control valve Y8 in the three cover pressure regulator valve groups comprises relief valve E10 and relief valve E11: the filler opening E10-P of relief valve E10 links to each other with working hole Y8-X2 with the working hole Y8-X1 of the first pilot operated directional control valve Y8 respectively with the filler opening E11-P of relief valve E11; The return opening E10-T of relief valve E10 and the return opening E11-T of relief valve E11 all are connected with the return opening of oil-feed piece; Identical with the working principle of relief valve E6 and E7, through regulating the setting pressure of relief valve E10 and E11, the i.e. pressure of the large and small propelling of may command rock drill;
The return pressure pressure regulator valve group that is used to regulate two working holes of the 5th pilot operated directional control valve Y11 in the three cover pressure regulator valve groups comprises relief valve E13 and relief valve E14: the filler opening E13-P of relief valve E13 links to each other with working hole Y11-X2 with the working hole Y11-X1 of the 5th pilot operated directional control valve Y11 respectively with the filler opening E14-P of relief valve E14; The return opening E13-T of relief valve E13 and the return opening E14-T of relief valve E14 all are connected with the return opening of oil-feed piece; Identical with the working principle of relief valve E6 and E7, through regulating the setting pressure of relief valve E13 and E14, i.e. the speed of may command rock drill forward revolution and reversed turning;
Comprise relief valve E8, relief valve E9, one-way valve Z5 and one-way valve Z6 in the two sleeving valve groups for rock drill propelling actuator fuel feeding road slow supply oil in the quadruplet slow supply oil valve group; For comprising relief valve E15, relief valve E16, one-way valve Z11 and one-way valve Z12 in the rock drill rotary power unit fuel feeding road slow supply oil two cover slow supply oil valve groups; Wherein, one-way valve Z5 is connected in reverse parallel in filler opening E8-P and the oil outlet E8-T two ends of precursor overflow valve E8, and precursor overflow valve E8 is serially connected between the return opening of working hole Y8-A and oil-feed piece of pilot operated directional control valve Y8; One-way valve Z6 is connected in reverse parallel in filler opening E9-P and the oil outlet E9-T two ends of precursor overflow valve E9, and precursor overflow valve E9 is serially connected between the return opening of working hole Y8-B and oil-feed piece of pilot operated directional control valve Y8; One-way valve Z11 is connected in reverse parallel in filler opening E15-P and the oil outlet E15-T two ends of precursor overflow valve E15, and precursor overflow valve E15 is serially connected between the return opening of working hole Y11-A and transition block of pilot operated directional control valve Y11; One-way valve Z12 is connected in reverse parallel in filler opening E16-P and the oil outlet E16-T two ends of precursor overflow valve E16, and precursor overflow valve E16 is serially connected between the return opening of working hole Y11-B and transition block of pilot operated directional control valve Y11; The effect to the load buffer repairing is played in relief valve in the slow supply oil valve group and one-way valve combination: when the load oil pressure surpassed the relief valve setting value, relief valve was opened draining, the protection load; Cross when slow when the pressure oil supply of load, one-way valve opens is to the repairing of load oil circuit;
The working interface 7 that the working hole A that is respectively equipped with each pilot operated directional control valve that makes in the pilot operated directional control valve group on the said valve body and working hole B link to each other with the actuator port of corresponding load separately; Be the first oil-feed interface and the first oil return interface 1 of first hydraulic control valve to the, four hydraulic control valve fuel feeding, and the responsive control interface 3 of first induced pressure that links to each other with the oil outlet of shuttle valve X9; Be the second oil-feed interface 4 and the second oil return interface 5 of the 5th hydraulic control valve fuel feeding, and the responsive control interface 6 of second induced pressure that links to each other with shuttle valve X15; The guide's control interface 8 that links to each other with the pilot control opening of each pilot operated directional control valve in the pilot operated directional control valve group; Be used for regulating the slow supply oil adjusting knob 9 of four relief valve pressure in the said 4 cover slow supply oil valve groups, be used for regulating the rock drilling pressure regulation button 12 of 6 relief valve pressure of said three cover pressure regulator valve groups; The oil-feed pressure regulation button 10 of relief valve E4 in the oil-feed piece, the transition pressure regulation button 11 of relief valve E12 in the transition block.
Claims (1)
1. the rock drilling integrated valve of a rock drill is characterized in that, the pilot operated directional control valve group, pressure regulator valve group, slow supply oil valve group, one way pressure-reducing valve, oil-feed piece and the transition block that comprise valve body and be integrated in valve inner;
Said oil-feed piece comprises the responsive control interface LS1 of precursor overflow valve E4, relief valve E5, filter core F1, throttle valve N18, throttle valve N19, oil inlet P 1, oil return inlet T 1 and induced pressure; Oil inlet P 1 links to each other with the filler opening E4-P of relief valve E4 with filter F 1 through throttle orifice N18, and the oil outlet E4-T of relief valve E4 links to each other with oil return inlet T 1, and oil inlet P 1 links to each other with the filler opening E5-P of relief valve E5, and oil outlet E5-T links to each other with oil return inlet T 1;
Said transition block comprises the responsive control interface LS2 of precursor overflow valve E12, oil inlet P 2, oil return inlet T 2 and induced pressure; Precursor overflow valve E12 is connected between oil inlet P 2 and the oil return inlet T 2;
Said pilot operated directional control valve group comprises 5 three seven logical pilot operated directional control valve, shuttle valve X8, shuttle valve X9, shuttle valve X10, shuttle valve X11 and shuttle valve X12; The working hole A of each pilot operated directional control valve communicates with working hole X1, and working hole B communicates with working hole X2; The spool switching-over of pilot control opening d1 and pilot control opening d2 control pilot operated directional control valve;
Said 5 three seven logical pilot operated directional control valves are respectively first pilot operated directional control valve that is used to control the rock drill impact, second pilot operated directional control valve, control rock drill left side track-type the 3rd pilot operated directional control valve, the 4th pilot operated directional control valve of controlling the walking of rock drill right-hand track chiain and rotating the 5th pilot operated directional control valve of control rock drill that the control rock drill advances;
The working hole X1 of said first pilot operated directional control valve and working hole X2 are connected two filler openings of shuttle valve X8 respectively, and the oil outlet of shuttle valve X8 links to each other with the filler opening of shuttle valve X9, and the oil outlet of shuttle valve X9 connects the responsive control interface LS1 of induced pressure in the oil-feed piece;
The working hole X1 of said second pilot operated directional control valve and working hole X2 are connected two filler openings of shuttle valve X10 respectively, and the oil outlet of shuttle valve X10 links to each other with the filler opening of shuttle valve X11; The oil outlet of shuttle valve X11 links to each other with another filler opening of shuttle valve X9;
The working hole X1 of said the 3rd pilot operated directional control valve links to each other with the filler opening of shuttle valve X10 with working hole X2 and after connecing, and the oil outlet of shuttle valve X12 links to each other with another filler opening of shuttle valve X11;
The working hole X1 of said the 4th pilot operated directional control valve links to each other with another filler opening of shuttle valve X12 with working hole X2 and after connecing;
Behind one way pressure-reducing valve of the oil inlet P of said first pilot operated directional control valve, second pilot operated directional control valve, the 3rd pilot operated directional control valve and the 4th pilot operated directional control valve serial connection with the oil-feed piece in oil inlet P 1 link to each other, two oil outlet T of each pilot operated directional control valve and connect afterwards with the oil-feed piece in oil outlet T1 be communicated with;
The working hole X1 of said the 5th pilot operated directional control valve links to each other with the responsive control interface LS2 of the induced pressure of transition block with working hole X2 and after connecing; Behind one way pressure-reducing valve of oil inlet P serial connection with transition block in oil inlet P 2 link to each other, two oil outlet T and connect afterwards with transition block in oil outlet T2 be communicated with;
Said pressure regulator valve group has 3 covers; Be respectively applied for and regulate first, second and the working hole A of the 5th pilot operated directional control valve and the return pressure of working hole B: every cover pressure regulator valve group all comprises two precursor overflow valves; A precursor overflow valve is serially connected between the working hole X1 and return opening of pilot operated directional control valve, and another precursor overflow valve is serially connected between the working hole X2 and return opening of pilot operated directional control valve;
Said slow supply oil valve group has 4 covers, and respectively slow supply oil is carried out on the fuel feeding road of 4 working holes of second pilot operated directional control valve and the 5th pilot operated directional control valve: every cover slow supply oil valve group all comprises an one-way valve and a precursor overflow valve; One-way valve is connected in reverse parallel in the filler opening and the oil outlet two ends of precursor overflow valve, and precursor overflow valve is serially connected between the working hole and return opening of pilot operated directional control valve;
Be respectively equipped with on the said valve body with system in the working interface (7) that links to each other with working hole B of the working hole A of each pilot operated directional control valve; The first oil-feed interface (1) that is connected with oil inlet P 1 in the oil-feed piece with the oil-feed piece in the first oil return interface (2) that is connected of oil outlet T1, and the first pressure feedback interface (3) that is connected with the oil outlet of shuttle valve X9; The second oil-feed interface (4) that links to each other with oil inlet P 2 in the transition block, the second oil return interface (5) that is connected with oil outlet T2 in the transition block, and the second pressure feedback interface (6) that is connected with the oil outlet of shuttle valve X15; The guide's control interface (8) that links to each other respectively with the pilot control opening d1 of each pilot operated directional control valve in the pilot operated directional control valve group and pilot control opening d2; Be used for regulating the slow supply oil adjusting knob (9) of four relief valve pressure in the said 4 cover slow supply oil valve groups, be used for regulating the rock drilling pressure regulation button (12) of 6 relief valve pressure of said three cover pressure regulator valve groups; Regulate the oil-feed pressure regulation button (10) of relief valve E4 pressure in the oil-feed piece, regulate the transition pressure regulation button (11) of relief valve E12 in the transition block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200283914U CN202418078U (en) | 2012-01-20 | 2012-01-20 | Drilling integration valve of rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200283914U CN202418078U (en) | 2012-01-20 | 2012-01-20 | Drilling integration valve of rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418078U true CN202418078U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200283914U Expired - Fee Related CN202418078U (en) | 2012-01-20 | 2012-01-20 | Drilling integration valve of rock drill |
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| Country | Link |
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| CN (1) | CN202418078U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927071A (en) * | 2012-11-14 | 2013-02-13 | 中煤科工集团重庆研究院 | Hydraulic anti-jamming control system for drill loader |
| CN103047202A (en) * | 2012-09-28 | 2013-04-17 | 江苏南华地下空间研究所有限公司 | Hydraulic system of comprehensive experiment platform |
| CN114321053A (en) * | 2022-03-11 | 2022-04-12 | 徐州徐工基础工程机械有限公司 | Electro-hydraulic control system and crawler-type mining trolley |
-
2012
- 2012-01-20 CN CN2012200283914U patent/CN202418078U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047202A (en) * | 2012-09-28 | 2013-04-17 | 江苏南华地下空间研究所有限公司 | Hydraulic system of comprehensive experiment platform |
| CN103047202B (en) * | 2012-09-28 | 2016-12-21 | 江苏南华地下空间研究所有限公司 | The hydraulic system of synthesis experiment platform |
| CN102927071A (en) * | 2012-11-14 | 2013-02-13 | 中煤科工集团重庆研究院 | Hydraulic anti-jamming control system for drill loader |
| CN102927071B (en) * | 2012-11-14 | 2015-08-26 | 中煤科工集团重庆研究院有限公司 | Drill loader hydraulic pressure anti-sticking pricker control system |
| CN114321053A (en) * | 2022-03-11 | 2022-04-12 | 徐州徐工基础工程机械有限公司 | Electro-hydraulic control system and crawler-type mining trolley |
| CN114321053B (en) * | 2022-03-11 | 2022-06-14 | 徐州徐工基础工程机械有限公司 | Electro-hydraulic control system and crawler-type mining trolley |
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