CN211288289U - Multi-way valve for drilling machine - Google Patents
Multi-way valve for drilling machine Download PDFInfo
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- CN211288289U CN211288289U CN201921085820.XU CN201921085820U CN211288289U CN 211288289 U CN211288289 U CN 211288289U CN 201921085820 U CN201921085820 U CN 201921085820U CN 211288289 U CN211288289 U CN 211288289U
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Abstract
The utility model discloses a multi-way valve for rig belongs to multi-way valve technical field, the utility model discloses mainly solved current multi-way valve and mainly had and by the single oil pump fuel feeding, adopted conventional one-way choke valve, it is little to have the flow in oil piping system, and loss of pressure is big defect. The utility model discloses a advance oil return valve block, motor control valve block, oil feed valve block, pump function conversion valve block, walking and support control valve block, play and bore function conversion valve block and holder function conversion valve block that connect gradually. The multi-way valve is characterized in that an oil inlet valve block and a pump function conversion valve block are additionally arranged on the multi-way valve, the multi-way valve of the double-oil-pump double-oil-return open type circulating hydraulic system is formed, when the motor control valve block is located at the middle position, an inlet of the oil inlet/return valve block is connected with the main oil pump, the oil inlet valve block is connected with the auxiliary oil pump, oil confluence of the main oil pump and the auxiliary oil pump can be achieved, and quick lifting of the feeding oil cylinder.
Description
Technical Field
The utility model relates to a multiple unit valve, in particular to multiple unit valve for rig.
Background
The multi-way valve is a common hydraulic element in a hydraulic system of the drilling machine, all the working links are connected through a plurality of pipelines and hydraulic elements, and the drilling machine can realize various actions in the working process, such as motor operation, drilling machine walking, and feeding cylinder movement and lifting.
The existing multi-way valve is mainly supplied with oil by a single oil pump, adopts a conventional one-way throttle valve, and has the defects of small flow and small pressure loss in an oil way system, so that the working efficiency of a drilling machine is influenced, and the cost is relatively high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rig multiple unit valve with two oil return open circulation hydraulic system of two oil pumps has increased the flow of multiple unit valve, has reduced loss of pressure, has improved the work efficiency of rig.
The technical purpose of the utility model is realized through following technical scheme: a multi-way valve for a drilling machine is characterized by comprising an oil inlet and return valve plate, a motor control valve plate, an oil inlet valve plate, a pump function conversion valve plate, a walking and supporting control valve plate, a drill tripping function conversion valve plate and a clamp holder function conversion valve plate which are sequentially connected;
the oil inlet and return valve plate comprises an oil inlet and return valve body, a first oil inlet channel and a first oil return channel are formed in the oil inlet and return valve body, and a first oil inlet communicated with the first oil inlet channel and a first oil return port communicated with the first oil return channel are formed in the oil inlet and return valve body;
the oil inlet valve block comprises an oil inlet valve body and a sixth main oil path channel arranged in the oil inlet valve body, the sixth main oil path channel is communicated with the pump function conversion valve block, the pump function conversion valve block comprises a pump function conversion valve body and a second reversing valve arranged in the pump function conversion valve body, a seventh channel, an eighth channel and a ninth channel are arranged in the pump function conversion valve body, a second main oil path channel is further arranged in the pump function conversion valve body, the second reversing valve comprises a second reversing valve rod, a fifth annular groove, a sixth annular groove and a seventh annular groove are sequentially arranged on the second reversing valve rod, and the second main oil path channel is opposite to the sixth annular groove.
Through the technical scheme, the oil inlet valve plate and the pump function conversion valve plate are additionally arranged on the multi-way valve, the multi-way valve of the double-oil-pump double-oil-return open type circulating hydraulic system is formed, when the motor control valve plate is located at the middle position, an inlet of the oil inlet/return valve plate is connected with the main oil pump, the oil inlet valve plate is connected with the auxiliary oil pump, oil confluence of the main oil pump and the auxiliary oil pump can be achieved, and quick lifting of the feeding oil cylinder is achieved.
Furthermore, an eleventh oil port, a twelfth oil port and a second oil inlet are arranged on one side face of the oil inlet valve body, a first throttle valve is respectively installed at two ends of the oil inlet valve body, and first check valves are respectively installed on the eleventh oil port and the twelfth oil port.
Through above-mentioned technical scheme, adopt to cooperate on the oil feed valve body to set up first choke valve and first check valve, form the one-way throttle valve subassembly of fit formula, increased the flow, reduced loss of pressure.
Furthermore, the eleventh oil port and the twelfth oil port on the oil inlet valve body are respectively connected with the flow passage to form a special-shaped hole.
Through above-mentioned technical scheme, adopt to design into the profile hole with the hydraulic fluid port cross-section on the oil feed valve body, increased the cross section of runner as far as, further increase the flow, promote the input of motor power.
Furthermore, a first transition valve is tightly arranged between the pump function conversion valve plate and the walking and supporting control valve plate.
Through the technical scheme, the first transition valve is arranged, so that the connecting pipeline between the pump function conversion valve plate and the walking and supporting control valve plate can be integrated into the first transition valve, the structure of the multi-way valve is more compact, and the occupied space of the multi-way valve is reduced.
Further, the motor control valve block includes the motor control valve body and sets up the first switching-over valve in the motor control valve body, is provided with first hydraulic fluid port and second hydraulic fluid port in the motor control valve body.
Further, the walking and supporting control valve plate comprises a walking and supporting control valve body and a third reversing valve arranged in the walking and supporting control valve body, and a third oil port and a fourth oil port are formed in the walking and supporting control valve body.
And the trip function switching valve plate comprises a trip function switching valve body and a fifth reversing valve arranged in the trip function switching valve body, and the trip function switching valve body is provided with a seventh oil port and an eighth oil port.
Further, the gripper function switching valve plate comprises a gripper function switching valve body and a sixth reversing valve arranged in the gripper function switching valve body, and a ninth oil port and a tenth oil port are formed in the gripper function switching valve body.
To sum up, the utility model discloses following beneficial effect has: an oil inlet valve plate and a pump function conversion valve plate are additionally arranged on the multi-way valve to form the multi-way valve of the double-oil-pump double-oil-return open type circulating hydraulic system, when the motor control valve plate is positioned at the middle position, an inlet of the oil inlet/return valve plate is connected with the main oil pump, and the oil inlet valve plate is connected with the auxiliary oil pump, so that oil liquid confluence of the main oil pump and the auxiliary oil pump can be realized, and the quick lifting of the feeding oil cylinder is realized;
the first throttling valve and the second one-way valve are arranged on the oil inlet valve body in a matched mode to form an integrated one-way throttling valve assembly, so that the flow is increased, and the pressure loss is reduced;
the special-shaped hole is designed between the oil port on the oil inlet valve body and the flow passage, so that the cross section of the flow passage is increased as much as possible, the flow is further increased, and the input of the motor power is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of a cross-sectional structure of the oil inlet/return valve plate of the present invention;
fig. 3 is a schematic sectional structure view of the motor control valve plate according to the present invention;
fig. 4 is a schematic view of a first cross-sectional structure of the pump function switching valve plate according to the present invention;
fig. 5 is a schematic diagram of a second sectional structure of the pump function switching valve plate according to the present invention;
FIG. 6 is a schematic view of the cross-sectional structure of the traveling and supporting control valve plate according to the present invention;
FIG. 7 is a schematic view of a cross-sectional structure of a valve plate of a feed cylinder according to the present invention;
fig. 8 is a schematic cross-sectional structure view of the trip function switching valve plate according to the present invention;
FIG. 9 is a schematic structural view of the function switching valve plate of the clamp of the present invention;
3 FIG. 3 10 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 in 3 FIG. 3 9 3; 3
Fig. 11 is a front view of the oil inlet valve plate of the present invention;
fig. 12 is a side view of the oil inlet valve plate according to the present invention;
FIG. 13 is a schematic sectional view taken along line B-B in FIG. 11;
FIG. 14 is a schematic cross-sectional view taken along line C-C of FIG. 11;
FIG. 15 is a schematic cross-sectional view taken along line D-D of FIG. 12;
fig. 16 is a schematic structural diagram of the oil inlet valve body of the present invention;
figure 17 is a side view of a first transition valve according to the present invention;
figure 18 is a front view of a first transition valve according to the present invention;
figure 19 is a schematic view of a second transition valve according to the present invention;
fig. 20 is a schematic view of the working principle of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the multi-way valve for a drilling machine disclosed in this embodiment includes an oil inlet/return valve sheet 1000, a motor control valve sheet 100, an oil inlet valve sheet 700, a pump function switching valve sheet 200, a second transition valve 800, a traveling and supporting control valve sheet 300, a third transition valve 900, a feed cylinder valve sheet 400, a trip function switching valve sheet 500, and a gripper function switching valve sheet 600, which are connected in sequence.
As shown in fig. 2, the oil inlet and return valve sheet 1000 includes an oil inlet and return valve body 1004, a first oil inlet channel 1003, a sixth main oil channel 1005 and a first oil return channel 1006 that are communicated with each other are formed in the oil inlet and return valve body 1004, a first oil inlet 1001, a first oil return port 1002 and a first pressure measuring port 1007 are formed in the oil inlet and return valve body 1004, the first oil inlet 1001 is communicated with one end of the first oil inlet channel 1003, the first oil return port 1002 is communicated with one end of the first oil return channel 1006, the first pressure measuring port 1007 is communicated with the first oil inlet channel 1003 and is used for detecting a hydraulic oil pressure of the first oil inlet 1001, the other end of the first oil inlet channel 1003 and the sixth main oil channel 1005 are both communicated with the motor control valve sheet 100, and a second check valve is disposed on the sixth main oil.
As shown in fig. 3, the motor control valve plate 100 includes a motor control valve body 111 and a second direction valve 112 disposed in the motor control valve body 111, a first oil port 109, a second oil port 110, a first passage 101, a second passage 102, a third passage 103, a fourth passage 104, a fifth passage 105 and a sixth passage 106 are disposed in the motor control valve body 111, the second oil port 110 is used as an auxiliary working oil port and connected to the motor, a first main oil passage 108 communicated with the third passage 103 and the fourth passage 104 is further disposed in the motor control valve body 111, the second direction valve 112 is a three-position six-way valve including a first valve stem 107, a first ring groove 1074, a second ring groove 1073, a third ring groove 1072 and a fourth ring groove 1071 are sequentially disposed on the first valve stem 107, the first passage 101 and the third passage 103 are respectively disposed on two sides of the first ring groove 1074, the second passage 102 is opposite to the first ring groove 1074, the fourth passage 104 and the sixth passage 106 are respectively disposed on two sides of the fourth ring groove 1071, the fifth channel 105 opposes the fourth groove 1071.
As shown in fig. 11 to 16, the oil inlet valve sheet 700 is disposed between the motor control valve sheet 100 and the pump function switching valve sheet 200, the oil inlet valve sheet 700 includes an oil inlet valve body 701, a first flow passage 708, a second flow passage 710 and a third flow passage 707 disposed in the oil inlet valve body 701, the third flow passage 707 is vertically communicated with the first flow passage 708 and the second flow passage 710, the oil inlet valve body 701 is fixedly connected between the motor control valve body 111 and the pump function switching valve body 201 side by side, a first oil port 702, a second oil port 703 and a second oil inlet 704 are disposed on one side surface of the oil inlet valve body 701, the first oil port 702 and the second oil port 703 are respectively communicated with two cavities of the rotary cylinder as working oil ports, the first oil port 702 and the second oil port 703 are both shaped holes, the sections of the first oil port 702 and the second oil port 703 near outer end holes are both cylindrical holes, a fourth flow passage 706 and a fifth flow passage 709 respectively communicated with two ends of the third flow passage, the cross sections of the fourth flow passage 706 and the fifth flow passage 709 are in a special shape, in this embodiment, the cross sections are in a T shape, and through the structural design, the eleventh oil port 702 and the twelfth oil port 703 can form a special-shaped hole structure at the connection part of the fourth flow passage 706 and the fifth flow passage 709, so that the cross section of the flow passage is increased as much as possible in the working process, the flow rate is further increased, and the input of the motor power is improved; the fourth flow passage 706 is communicated with the eleventh oil port 702, the fifth flow passage 709 is communicated with the twelfth oil port 703, the first flow passage 708 and the second flow passage 710 are respectively communicated with the motor control valve plate 100, the oil inlet valve plate 700 is further provided with a sixth main oil passage, two ends of the sixth main oil passage are respectively communicated with the first main oil passage 108 on the motor control valve body 111 and the second main oil passage 204 on the pump function switching valve body 201, the oil inlet valve body 701 is provided with a first throttle valve 711, a second throttle valve 905 and a shuttle valve 712, the first throttle valve 711 and the second throttle valve 905 are respectively arranged on the first flow passage 708 and the second flow passage 710, the shuttle valve 712 is arranged on the third flow passage 707, and two ends of the shuttle valve 712 are respectively communicated with the first throttle valve 711 and the second throttle valve 905, through with first choke valve, second choke valve and shuttle valve integration setting in advancing the valve body, reduced pressure loss.
As shown in fig. 4 and 5, the pump function switching valve plate 200 includes a pump function switching valve body 201 and a second direction valve 202 disposed in the pump function switching valve body 201, the pump function switching valve body 201 is provided with a second pressure measuring port 207, a seventh passage 205, an eighth passage 206 and a ninth passage 208, the seventh passage 205 is communicated with the eighth passage 206 and the ninth passage 208, the pump function switching valve body 201 is further provided with a second main oil passage 204, the second direction valve 202 is a two-position two-way valve including a second valve stem 203, and the second valve stem 203 is sequentially provided with a fifth ring groove 2031 and a sixth ring groove 2032.
As shown in fig. 6, the traveling and supporting control valve plate 300 includes a traveling and supporting control valve body 301 and a third directional valve 308 disposed in the traveling and supporting control valve body 301, the traveling and supporting control valve body 301 is provided with a third oil port 302, a fourth oil port 303, a tenth passage 304, an eleventh passage 306 and a twelfth passage 305, the third oil port 302 and the fourth oil port 303 are both used as working oil ports and are respectively connected with the traveling and supporting oil cylinder, the third oil port 302 is disposed at one end of the tenth passage 304, the fourth oil port 303 is disposed at one end of the twelfth passage 305, a third main oil passage is further disposed in the traveling and supporting control valve body 301, the third directional valve 308 is a two-position six-way valve and includes a third valve stem 309, a seventh ring groove 3094, an eighth ring groove 3093, a ninth ring groove 3096, a tenth ring groove 3092 and an eleventh ring groove 3091 are sequentially disposed on the third valve stem 309, the other end of the tenth passage 304 is opposite to the seventh ring groove 3094, the other end of the twelfth channel 305 is opposite to the eleventh ring groove 3091.
As shown in fig. 7, the feed cylinder valve plate 400 includes a feed valve body 411 and a fourth direction valve 412 disposed in the feed valve body 411, the feed valve body 411 is provided with a fifth oil port 409, a sixth oil port 410, a thirteenth channel 401, a fourteenth channel 402, a fifteenth channel 403, a sixteenth channel 404, a seventeenth channel 405 and an eighteenth channel 406, the fifth oil port 409 and the sixth oil port 410 are respectively connected with the feed cylinder, the feed valve body 411 is further provided with a fourth main oil channel 408 communicated with the fifteenth channel 403 and the sixteenth channel 404, the fourth direction valve 412 is a three-position six-way valve and includes a fourth valve rod 407, the fourth valve rod 407 is sequentially provided with a twelfth ring groove 4074, a thirteenth ring groove 4073, a fourteenth ring groove 4072 and a fifteenth ring groove 4071, the thirteenth channel 401 and the fifteenth channel 403 are respectively located on two sides of the twelfth ring groove 4074, the fourteenth channel 402 is opposite to the twelfth ring groove 4074, sixteenth and eighteenth passages 404 and 406 are located on opposite sides of the fifteenth ring groove 4071, and seventeenth passage 405 opposes the fifteenth ring groove 4071.
As shown in fig. 8, the trip function switching valve plate 500 includes a trip function switching valve body 511 and a fifth direction valve 512 disposed in the trip function switching valve body 511, the trip function switching valve body 511 is provided with a seventh oil port 509, an eighth oil port 510, a nineteenth passage 501, a twentieth passage 502, a twenty-first passage 503, a twentieth passage 504, a twentieth passage 505 and a twenty-fourth passage 506, the seventh oil port 509 and the eighth oil port 510 are all working oil ports and are respectively connected to a trip function switching cylinder, the seventh oil port 509 is disposed at one end of the twentieth passage 502, the eighth oil port 510 is disposed at one end of the twentieth passage 505, the trip function switching valve body 511 is further provided with a fifth main oil passage 508 communicated with the twenty-first passage 503 and the twenty-second passage 504, the fifth direction valve 512 is a three-position six-way valve including a fifth valve stem 507, the fifth valve rod 507 is sequentially provided with a sixteenth ring groove 5074, a seventeenth ring groove 5073, an eighteenth ring groove 5072 and a nineteenth ring groove 5071, a nineteenth channel 501 and a twenty-first channel 503 are respectively positioned on two sides of the sixteenth ring groove 5074, a twentieth channel 502 is opposite to the sixteenth ring groove 5074, a twentieth channel 504 and a twenty-fourth channel 506 are respectively positioned on two sides of the nineteenth ring groove 5071, and a twentieth channel 505 is opposite to the nineteenth ring groove 5071.
As shown in fig. 9 and 10, the gripper function conversion valve plate 600 includes a gripper function conversion valve body 601 and a sixth direction valve 602 disposed in the gripper function conversion valve body 601, the gripper function conversion valve body 601 is provided with a ninth oil port 604, a tenth oil port 609, a second oil return port 610, a twenty-seventh channel 605, a twenty-fifth channel 606, a twenty-sixth channel 608, and a second oil return channel, the ninth oil port 604 and the tenth oil port 609 are used as working oil ports and are respectively connected to the hydraulic chuck, the sixth direction valve 602 is a two-position three-way valve and includes a sixth valve rod 603, the sixth valve rod 603 is sequentially provided with a twenty-fifth ring groove 6031 and a twenty-sixth ring groove 6032, the twenty-sixth channel 608 is opposite to the twenty-first ring groove, and the twenty-seventh channel 605 and the twenty-fifth channel 606 are respectively located on two sides of the twenty-fifth ring groove 6031.
As shown in fig. 17 and 18, a second transition valve 800 is tightly connected between the pump function switching valve plate 200 and the traveling and supporting control valve plate 300, the second transition valve 800 includes a second transition valve body 801, a second check valve, a pressure reducing valve 806 and a first check valve 807, the second check valve and the first check valve 807 are arranged on the second transition valve body 801 and are connected in series, the flow directions of the second check valve and the first check valve 807 are opposite, a seventh main oil passage 802, a seventh flow passage 803 and an eighth flow passage 804 are arranged on the second transition valve body 801, and two ends of the seventh main oil passage 802 are respectively communicated with the second main oil passage 204 on the pump function switching valve body 201 and the third main oil passage on the traveling and supporting control valve body 301.
As shown in fig. 19, a third transition valve 900 is tightly connected between the traveling and supporting control valve plate 300 and the feeding cylinder valve plate 400, the third transition valve 900 includes a third transition valve body 901, and a first throttle valve 711, a second throttle valve 905, and a hydraulic control check valve 906 that are disposed on the third transition valve body 901 and are connected in series with each other, an eighth main oil passage 902, a ninth flow passage 903, and a tenth flow passage 904 are disposed on the third transition valve body 901, and two ends of the eighth main oil passage 902 are respectively communicated with the third main oil passage on the traveling and supporting control valve body 301 and the fourth main oil passage 408 on the feeding valve body 411.
As shown in fig. 20, the working principle is: the utility model discloses be applied to in the hydraulic system of the full-hydraulic gallery rig of crawler-type for the coal mine, the executive component who is connected respectively with eleventh hydraulic fluid port 702 and twelfth hydraulic fluid port 703 is hydraulic motor, it is firm hydro-cylinder and walking motor to be connected the executive component respectively with third hydraulic fluid port 302 and fourth hydraulic fluid port 303, the executive component who is connected with fifth hydraulic fluid port 409 and sixth hydraulic fluid port 410 is for having given the feed and dialling the hydro-cylinder, the executive component who is connected respectively with ninth hydraulic fluid port 604 and tenth hydraulic fluid port 609 is holder and hydraulic chuck, second switching-over valve 112, third switching-over valve 308, fourth switching-over valve 412, fifth switching-over valve 512 and sixth switching-over valve 602 series connection, second switching-over valve 202 and third switching-over valve 308 parallel connection.
When the hydraulic motor works, the first valve rod 107 of the second reversing valve 112 moves to enable the second reversing valve 112 to be on the upper position, the first oil inlet 1001 supplies oil, and the hydraulic oil sequentially passes through the second reversing valve 112, a first throttle valve 711, an eleventh oil port 702, the hydraulic motor, a twelfth oil port 703, a second throttle valve 905 and the second reversing valve 112 and finally enters the first oil return port 1002 to form a hydraulic motor oil supply loop; when the stabilizing oil cylinder and the walking motor work, the first valve rod 107 of the second reversing valve 112 moves to enable the middle position of the second reversing valve 112, the third valve rod 309 of the third reversing valve 308 moves to enable the lower position of the third reversing valve 308, the first oil inlet 1001 supplies oil, hydraulic oil sequentially passes through the second reversing valve 112, the third reversing valve 308, the walking motor, the stabilizing oil cylinder and the third reversing valve 308 and finally enters the first oil return port 1002, and an oil supply loop of the stabilizing oil cylinder and the walking motor is formed; when the feeding and lifting oil cylinder works, the middle position of the second reversing valve 112 is enabled, the upper position of the third reversing valve 308 is enabled, the fourth valve rod 407 of the fourth reversing valve 412 moves to enable the upper position of the fourth reversing valve 412, the first oil inlet 1001 supplies oil, and hydraulic oil sequentially passes through the second reversing valve 112, the third reversing valve 308, the fourth reversing valve 412, the fifth oil port 409, the feeding and lifting oil cylinder, the sixth oil port 410 and the fourth reversing valve 412 and finally enters the first oil return port 1002 to form an oil supply loop of the feeding and lifting oil cylinder; when the gripper and the hydraulic chuck work, the upper position of the third reversing valve 308 is enabled, the middle position of the fourth reversing valve 412 is enabled, the fifth valve rod 507 of the fifth reversing valve 512 moves to enable the upper position of the fifth reversing valve 512, the second valve rod 203 of the second reversing valve 202 moves to enable the lower position of the second reversing valve 202, the sixth valve rod 603 of the sixth reversing valve 602 moves to enable the upper position of the sixth reversing valve 602, the second oil inlet 704 supplies oil, hydraulic oil passes through the second reversing valve 202 and then is divided into two paths, one path enters the sixth reversing valve 602, the gripper is supplied with oil through the ninth oil port 604, and the other path directly enters the hydraulic chuck for supplying oil.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (6)
1. A multi-way valve for a drilling machine is characterized by comprising an oil inlet and return valve plate, a motor control valve plate, an oil inlet valve plate, a pump function conversion valve plate, a walking and supporting control valve plate, a drill tripping function conversion valve plate and a clamp holder function conversion valve plate which are sequentially connected; the oil inlet and return valve plate comprises an oil inlet and return valve body, a first oil inlet channel (1003) and a first oil return channel (1006) are formed in the oil inlet and return valve body, and a first oil inlet (1001) communicated with the first oil inlet channel (1003) and a first oil return port (1002) communicated with the first oil return channel (1006) are formed in the oil inlet and return valve body; the oil inlet valve plate comprises an oil inlet valve body (1004) and a sixth main oil path channel arranged in the oil inlet valve body (1004), the sixth main oil path channel is communicated with the pump function conversion valve plate, the pump function conversion valve plate comprises a pump function conversion valve body and a second reversing valve (202) arranged in the pump function conversion valve body, a seventh channel (205), an eighth channel (206) and a ninth channel (208) are arranged in the pump function conversion valve body, a second main oil path channel (204) is also arranged in the pump function conversion valve body, the second reversing valve (202) comprises a second reversing valve (202) rod, a fifth ring groove (2031), a sixth ring groove (2032) and a seventh ring groove (3094) are sequentially arranged on the second reversing valve (202) rod, and the second main oil path channel (204) is opposite to the sixth ring groove (2032);
an eleventh oil port (702), a twelfth oil port (703) and a second oil inlet (704) are arranged on one side surface of the oil inlet valve body (1004), a first throttle valve (711) is respectively installed at two ends of the oil inlet valve body (1004), and first check valves are respectively installed on the eleventh oil port (702) and the twelfth oil port (703); and a special-shaped hole is formed between the eleventh oil port (702) and the twelfth oil port (703) on the oil inlet valve body (1004) and the flow passage respectively.
2. The multi-way valve for the drilling machine as claimed in claim 1, wherein: a first transition valve (700) is tightly arranged between the pump function conversion valve plate and the walking and supporting control valve plate.
3. The multi-way valve for the drilling machine as claimed in claim 1, wherein: the motor control valve plate comprises a motor control valve body and a first reversing valve (112) arranged in the motor control valve body, and a first oil port (109) and a second oil port (110) are arranged in the motor control valve body.
4. The multi-way valve for the drilling machine as claimed in claim 1, wherein: the walking and supporting control valve plate comprises a walking and supporting control valve body and a third reversing valve (308) arranged in the walking and supporting control valve body, and a third oil port (302) and a fourth oil port (303) are formed in the walking and supporting control valve body.
5. The multi-way valve for the drilling machine as claimed in claim 1, wherein: the trip function switching valve plate comprises a trip function switching valve body and a fifth reversing valve (512) arranged in the trip function switching valve body, and the trip function switching valve body is provided with a seventh oil port (509) and an eighth oil port (510).
6. The multi-way valve for the drilling machine as claimed in claim 1, wherein: the gripper function switching valve plate comprises a gripper function switching valve body and a sixth reversing valve (602) arranged in the gripper function switching valve body, and a ninth oil port (604) and a tenth oil port (609) are formed in the gripper function switching valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921085820.XU CN211288289U (en) | 2019-07-11 | 2019-07-11 | Multi-way valve for drilling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921085820.XU CN211288289U (en) | 2019-07-11 | 2019-07-11 | Multi-way valve for drilling machine |
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| CN211288289U true CN211288289U (en) | 2020-08-18 |
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| CN201921085820.XU Active CN211288289U (en) | 2019-07-11 | 2019-07-11 | Multi-way valve for drilling machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345119A (en) * | 2019-07-11 | 2019-10-18 | 宁波市博尔法液压有限公司 | A kind of drilling machine multi-way valve |
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2019
- 2019-07-11 CN CN201921085820.XU patent/CN211288289U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345119A (en) * | 2019-07-11 | 2019-10-18 | 宁波市博尔法液压有限公司 | A kind of drilling machine multi-way valve |
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