CN204627400U - A kind of unit head anti-down slide device of hydraulic drill rig - Google Patents
A kind of unit head anti-down slide device of hydraulic drill rig Download PDFInfo
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- CN204627400U CN204627400U CN201520280551.8U CN201520280551U CN204627400U CN 204627400 U CN204627400 U CN 204627400U CN 201520280551 U CN201520280551 U CN 201520280551U CN 204627400 U CN204627400 U CN 204627400U
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Abstract
A kind of unit head anti-down slide device of hydraulic drill rig, unit head is arranged on hydraulic drilling rig frame by anti-down slide device, described anti-down slide device comprises propelling cylinder, drive the hydraulic motor that unit head rotates, be arranged on the hydraulic control one-way valve on propelling cylinder rod end chamber oil-feed loop and control the rib valve of this hydraulic control one-way valve, two oil-ins of described rib valve are connected with the reversion loop of described hydraulic motor and described propelling cylinder plunger shaft oil-feed loop respectively, the oil-out of rib valve is connected with the control mouth of described hydraulic control one-way valve, the reverse oil-in of hydraulic control one-way valve is connected with the oil inlet and outlet of the rod end chamber of described propelling cylinder, described unit head is connected with the piston rod of propelling cylinder.The utility model structure is simple, easy and simple to handle, by arranging the hydraulic control one-way valve controlled by rib valve on the rod end chamber oil circuit of propelling cylinder, unit head can be made to rest on optional position, prevent it from gliding, it can also be allowed freely to advance or retreat.
Description
Technical field
The utility model relates to a kind of equipment for field of coal mining, specifically a kind of unit head anti-down slide device of hydraulic drill rig.
Background technology
Need to hole in coal body or rock during coal mining to draw out methane, and the equipment great majority that present stage holes used are hydraulic drill rig.Hydraulic drill rig main working parts is unit head, and unit head moves forward and backward under the driving of propelling cylinder, and provides rotating speed and moment of torsion for drilling rod, realizes bore operation.Draw out methane the required distribution of boreholes bored in each orientation, there is hole, the elevation angle, there is hole, the angle of depression, there is lateral aperture etc., and when hydraulic drill machine drill uphole, due to the rod end chamber of propelling cylinder and the hydraulic fluid communication of plunger shaft, there will be the phenomenon that unit head glides under Gravitative Loads, the carrying out and the operator that affect bore operation change drilling rod, and jeopardize the personal safety of operator, there is larger potential safety hazard.In order to solve the problem that unit head glides, present stage, some hydraulic drill rig producer was provided with hand-operated direction valve to prevent the downslide of unit head on the oil circuit of propelling cylinder, but its operation more complicated, need the workman be skilled in technique to support and hold.
Utility model content
The purpose of this utility model is to provide a kind of unit head anti-down slide device of hydraulic drill rig, be arranged between unit head and hydraulic drilling rig frame, easy and simple to handle, can prevent hydraulic drill rig from occurring the phenomenon glided at the process medium power head boring hole, the elevation angle, and unit head can also be made to stop at Anywhere by this unit head anti-down slide device, further increase the safety of rig operation.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of unit head anti-down slide device of hydraulic drill rig, unit head is arranged on hydraulic drilling rig frame by anti-down slide device, described anti-down slide device comprises propelling cylinder, drive the hydraulic motor that unit head rotates, be arranged on the hydraulic control one-way valve on propelling cylinder rod end chamber oil-feed loop and control the rib valve of this hydraulic control one-way valve, two oil-ins of described rib valve are connected with the reversion loop of described hydraulic motor and described propelling cylinder plunger shaft oil-feed loop respectively, the oil-out of rib valve is connected with the control mouth of described hydraulic control one-way valve, the reverse oil-in of hydraulic control one-way valve is connected with the oil inlet and outlet of the rod end chamber of described propelling cylinder, described unit head is connected with the piston rod of propelling cylinder.
Described hydraulic control one-way valve and rib valve are cartridge valve.
Compared with prior art, the utility model has following beneficial effect:
The utility model structure is simple, easy and simple to handle, unlatching or the closedown of hydraulic control one-way valve just can be controlled by the current intelligence of fluid in rib valve, and then the mobility status of fluid at hydraulic control one-way valve two ends of rod end chamber in adjustment propelling cylinder, when having fluid to pass through in rib valve, fluid just can enter hydraulic control one-way valve from oil circuit control and open the spool of hydraulic control one-way valve, the fluid at hydraulic control one-way valve two ends can be flowed freely, namely in propelling cylinder, the fluid of rod end chamber can flow freely, thus makes unit head to advance arbitrarily or to retreat; And when not having fluid to pass through in rib valve, fluid is not had in the oil circuit control of hydraulic control one-way valve, its spool is in closure state, and the fluid in the rod end chamber of propelling cylinder can only flow out from rod end chamber, and can not flow in the other direction, the unit head be connected with piston rod so just can be made to advance, and can not retreat, thus just can prevent the downslide of unit head, ensure that the safety of operation is carried out, and unit head can be rested on any position, so that the carrying out of operation.
Accompanying drawing explanation
Fig. 1 is the hydraulic schematic diagram of unit head anti-down slide device.
Fig. 2 is hydraulic control one-way valve and the structural representation of rib valve on valve block.
Mark in figure: 1, propelling cylinder, 2, hydraulic motor, 3, rib valve, 301, oil-in I, 302, oil-in II, 303, oil-out, 4, hydraulic control one-way valve, 401, forward oil-in, 402, oppositely oil-in, 403, control mouth.
Detailed description of the invention
Below in conjunction with accompanying drawing, by detailed description of the invention, the utility model is further described.
As shown in the figure, a kind of unit head anti-down slide device of hydraulic drill rig, unit head is arranged in the frame of hydraulic drill rig by this device, this unit head anti-down slide device comprises propelling cylinder 1, drive the hydraulic motor 2 that unit head rotates, rib valve 3 and hydraulic control one-way valve 4, the free end of propelling cylinder 1 piston rod is connected with unit head, described hydraulic control one-way valve 4 is arranged on the rod end chamber oil-feed loop of described propelling cylinder 1, and the reverse oil-in 401 of hydraulic control one-way valve 4 is communicated with the oil inlet and outlet of rod end chamber in described propelling cylinder 1, oil-in I 301 in described rib valve 3 and oil-in II 302 are connected with the reversion loop of described hydraulic motor 2 and propelling cylinder 1 plunger shaft oil-feed loop respectively, the oil-out 303 of rib valve 3 is communicated with formation control oil circuit with the control mouth 403 of described hydraulic control one-way valve 4.
The principle that this device prevents unit head from gliding is as follows: can the fluid controlling described hydraulic control one-way valve 4 two ends by oil circuit control by described rib valve 3 flow freely, and then controls unit head, prevents it from gliding, when hydraulic motor 2 reverses after the fluid in loop and the fluid in propelling cylinder 1 plunger shaft oil-feed loop enters rib valve 3 respectively by the oil-in I 301 on rib valve 3 with oil-in II 302, two-way fluid in rib valve 3 according to its respective pressure size, the large person of pressure can back down the spool of rib valve 3, enter in hydraulic control one-way valve 4 by the control mouth 403 of oil circuit control and hydraulic control one-way valve 4, and back down the spool of hydraulic control one-way valve 4, the fluid in the rod end chamber of propelling cylinder 1 is made to enter hydraulic control one-way valve 4 from reverse oil-in 402 and to flow freely at hydraulic control one-way valve 4 two ends, thus make piston rod and the unit head that is connected with piston rod is in quick condition, namely unit head can advance or retreat, be convenient to the adjustment and the bore operation that carry out bore position, in described rib valve 3, do not have fluid to enter, also just make there is no pressure oil in the oil circuit control of hydraulic control one-way valve 4, thus make fluid can not flow out from rod end chamber and flow freely at hydraulic control one-way valve 4 two ends, unit head now just cannot retreat, therefore would not there is situation about gliding because of self gravitation in unit head, and unit head can stop at any one position.
After the fluid that fluid in above-mentioned propelling cylinder 1 plunger shaft oil-feed loop and hydraulic motor 2 reverse in loop enters rib valve 3 respectively by the oil-in I 301 of rib valve 3 with oil-in II 302, the spool that the fluid that pressure is large promotes rib valve 3 moves to the lower one end of pressure and the oil-in of the lower one end of confining pressure, the oil circuit oil liquid leakage preventing pressure lower.
Further, above-mentioned rib valve 3 all can adopt cartridge valve with hydraulic control one-way valve 4.
Further, described rib valve 3 concentrates on a valve block, to reach less, the lightweight object of body with hydraulic control one-way valve 4.
Claims (2)
1. the unit head anti-down slide device of a hydraulic drill rig, unit head is arranged on hydraulic drilling rig frame by anti-down slide device, it is characterized in that: described anti-down slide device comprises propelling cylinder (1), drive the hydraulic motor (2) that unit head rotates, be arranged on the hydraulic control one-way valve (4) on propelling cylinder (1) rod end chamber oil-feed loop and control the rib valve (3) of this hydraulic control one-way valve (4), oil-in I (301) on described rib valve (3) and oil-in II (302) are connected with the reversion loop of described hydraulic motor (2) and described propelling cylinder (1) plunger shaft oil-feed loop respectively, the oil-out (303) of rib valve (3) is connected with the control mouth (403) of described hydraulic control one-way valve (4), the reverse oil-in (402) of hydraulic control one-way valve (4) is connected with the oil inlet and outlet in described propelling cylinder (1) upper piston rod chamber, described unit head is connected with the piston rod of propelling cylinder (1).
2. the unit head anti-down slide device of a kind of hydraulic drill rig according to claim 1, is characterized in that: described rib valve (3) and hydraulic control one-way valve (4) are cartridge valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520280551.8U CN204627400U (en) | 2015-05-05 | 2015-05-05 | A kind of unit head anti-down slide device of hydraulic drill rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520280551.8U CN204627400U (en) | 2015-05-05 | 2015-05-05 | A kind of unit head anti-down slide device of hydraulic drill rig |
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| Publication Number | Publication Date |
|---|---|
| CN204627400U true CN204627400U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520280551.8U Active CN204627400U (en) | 2015-05-05 | 2015-05-05 | A kind of unit head anti-down slide device of hydraulic drill rig |
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| CN (1) | CN204627400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944835A (en) * | 2019-04-02 | 2019-06-28 | 重庆平山矿山机电设备有限公司 | A kind of hydraulic system and drilling machine of drilling machine |
-
2015
- 2015-05-05 CN CN201520280551.8U patent/CN204627400U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944835A (en) * | 2019-04-02 | 2019-06-28 | 重庆平山矿山机电设备有限公司 | A kind of hydraulic system and drilling machine of drilling machine |
| CN109944835B (en) * | 2019-04-02 | 2024-04-23 | 重庆平山机电设备有限公司 | Hydraulic system of drilling machine and drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 467000 Henan province Pingdingshan City Beihuan South (Xinhua District Industrial Park Road West) Patentee after: HENAN TIEFULAI EQUIPMENT MANUFACTURING CO., LTD. Address before: 467000 Henan province Pingdingshan City Beihuan South (Xinhua District Industrial Park Road West) Patentee before: Pingdingshan Tiefulai Electronic and Mechanical Equipment Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 467000 South North Ring Road, Pingdingshan City, Henan Province (West of Xinhua Industrial Park) Patentee after: Tiefulai Equipment Manufacturing Group Co.,Ltd. Address before: 467000 South North Ring Road, Pingdingshan City, Henan Province (West of Xinhua Industrial Park) Patentee before: HENAN TIEFULAI EQUIPMENT MANUFACTURING Co.,Ltd. |