CN210217825U - Hydraulic power and mechanical integrated reducing cave-making device in coal bed - Google Patents
Hydraulic power and mechanical integrated reducing cave-making device in coal bed Download PDFInfo
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- CN210217825U CN210217825U CN201920660110.9U CN201920660110U CN210217825U CN 210217825 U CN210217825 U CN 210217825U CN 201920660110 U CN201920660110 U CN 201920660110U CN 210217825 U CN210217825 U CN 210217825U
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Abstract
The utility model provides a cave device is made to hydraulic power mechanical integration reducing in coal seam, includes the mobile jib body, mobile jib body center department slidable mounting has the piston, runs through the piston and has seted up the cooling water hole, and the mobile jib body is close to and has processed the water inlet on the water inlet end in cooling water hole, has seted up the arm of a knife installation cavity on the mobile jib body lateral wall, installs the arm of a knife in the arm of a knife installation cavity, and the arm of a knife is close to the one end rotation of water inlet and installs on the mobile jib body, and the cooling water that the water inlet got into promotes the piston slip in-process and expandes through rack section and gear section cooperation control arm of a knife, the mobile jib body be close to cooling water hole water outlet end processing and. The utility model provides a traditional drill bit drilling diameter little, the gas take out and take out the technical problem of inefficiency, solved the drill bit difficulty that resets after work simultaneously, the difficult problem that can't take out.
Description
Technical Field
The utility model belongs to the technical field of a cave processing is made to the coal seam and specifically relates to a cave device is made to hydraulic power mechanical integration reducing in coal seam.
Background
In order to improve the gas extraction rate, a method of increasing the diameter of a drill hole is often adopted. However, the traditional method for increasing the diameter of the drilled hole has a series of adverse factors, such as increased risk of outburst of the drilled hole, serious hole collapse phenomenon, difficulty in slag removal, short length of the drilled hole and the like, and meanwhile, the expansion of the diameter of the drilled hole puts higher requirements on the drilling machine, and the existing drilling machine cannot meet the requirement of the load which is increased by geometric multiples. The technology of ordinary high-pressure water jet cutting coal wall reaming still has an optimized space in special conditions, and particularly when the hardness of a coal seam is high, hydraulic punching and cave-making equipment is weak. Or when the hole is drilled and punched downwards, the water is discharged upwards, and the gathered coal water blocks a water cutting line, so that the hydraulic punching and hole forming cannot play a due role.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydraulic power mechanical integration reducing cave making device in coal seam for solving the problem that the reaming tool arm of current hydraulic cave making device resumes the difficulty behind the reaming.
The utility model discloses a solve above-mentioned technical problem not enough, the technical scheme who adopts is:
a hydraulic power and mechanical integrated reducing cave-making device in a coal bed comprises a main rod body, wherein a piston is slidably mounted at the center of the main rod body, a liquid flow hole is formed in the piston in a penetrating mode, a liquid inlet is formed in the liquid inlet end, close to the jet flow hole, of the main rod body, a knife arm installation cavity is formed in the side wall of the main rod body, a knife arm is installed in the knife arm installation cavity, one end, close to the liquid inlet, of the knife arm is rotatably installed on the main rod body, a rack section is machined on the outer wall of the piston, a gear section is arranged on the knife arm, close to the rotary installation end of the knife arm, and is meshed with the rack section and the gear section, the knife arm is controlled to be unfolded through the matching of the rack section and the gear section in the process that the liquid flow entering the liquid inlet pushes the piston to slide, a spring cavity is machined at the, the other end of the reset spring is pressed on the main rod body, and the piston is pushed to reset through the elastic acting force of the spring so as to reset the knife arm.
The piston outer wall close to the knife arm is provided with a plurality of side wall liquid outlet holes communicated with the liquid flow holes, a throttling device is arranged in the spring cavity, after the knife arm is controlled by the piston in a sliding mode to be opened, the liquid outlet end of the throttling device inserted into the liquid flow holes is used for plugging the cooling liquid holes, and liquid flow washes the knife arm and the knife arm installation cavity after being discharged from the side wall liquid outlet holes.
The outlet end of the liquid flow hole is provided with a liquid outlet, and the shape of the liquid outlet is horn-shaped or cylindrical.
The throttling device adopts a throttling column or a throttling ring.
The throttling column is fixed on the main rod body and penetrates through the center of the reset spring, and one end, close to the piston, of the throttling column is inserted into the liquid outlet end of the cooling liquid hole of the piston to block the cooling liquid hole.
The throttling ring is fixed on the main rod body and penetrates through the center of the return spring, and one end, close to the piston, of the throttling ring is inserted into the liquid outlet end of the liquid flow of the piston to block the liquid flow hole.
The inlet be close to the piston position be provided with piston complex upper sliding sleeve, the piston slides and wears to establish in upper sliding sleeve, install lower sliding sleeve in the one end that the spring chamber is close to the piston, the piston slides and wears to establish in the lower sliding sleeve, through upper sliding sleeve and lower sliding sleeve cooperation realize the slidable mounting of piston on the main mast body.
The utility model has the advantages that: the utility model provides a traditional drill bit drilling diameter little, the gas take out and take out the technical problem of inefficiency, solved the drill bit difficulty that resets after work simultaneously, the difficult problem that can't take out, the utility model discloses use easy operation, response speed is fast, through high-pressure hydraulic power cutting coal wall when tool setting arm installation cavity and tool setting arm wash, effectively avoids the cinder to get into the clamping stagnation when tool setting arm installation cavity leads to the tool setting arm to be closed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the throttle post installed in the utility model.
Fig. 3 is a schematic structural view of the middle installation restrictor ring of the present invention.
A pictorial sign 1, a main stem body; 1.1, a spring cavity; 1.2, installing a cavity on the cutter arm; 2. a piston; 2.1, a liquid flow hole; 2.2, side wall liquid outlet holes; 2.3, a liquid outlet; 3. a cutter arm; 4. a return spring; 5. a rotating shaft; 6. an upper sliding sleeve; 7. a lower sliding sleeve; 8. a restrictor ring; 9. a spring seat; 10. and (4) a throttling column.
Detailed Description
The specific embodiment shown in the figure is as follows:
a hydraulic power and mechanical integrated reducing and cave-making device in a coal bed comprises a main rod body 1, a piston 2 is slidably mounted at the center of the main rod body 1, the piston 2 is slidably mounted in the field, a liquid flow hole 2.1 is formed in the piston 2 in a penetrating mode, a liquid inlet is machined in the liquid inlet end, close to the liquid flow hole 2.1, of the main rod body 1, a knife arm mounting cavity 1.2 is formed in the side wall of the main rod body 1, a knife arm 3 is mounted in the knife arm mounting cavity 1.2, one end, close to the liquid inlet, of the knife arm 3 is rotatably mounted on the main rod body 1 through a rotating shaft 5, a rack section is machined in the outer wall of the piston 2, a gear section is arranged at the position, close to the rotating mounting end, of the knife arm 3, the rack section is meshed with the gear section, cooling liquid entering from the liquid inlet pushes the piston 2 to slide, the knife arm 3 to be controlled to unfold through the matching of the rack section with, the liquid outlet has been processed to the one end that piston 2 was kept away from to spring chamber 1.1, installs reset spring 4 in the spring chamber 1.1, and reset spring 4's one end roof pressure is on piston 2, and reset spring 4's other end roof pressure is on the king-rod body 1, and the elastic force through reset spring 4 promotes piston 2 and resets in order to realize the reseing of tool arm.
The outer wall of the piston 2 close to the position of the knife arm 3 is provided with a plurality of side wall liquid outlet holes 2.2 communicated with the liquid flow holes, a throttling device is arranged in the spring cavity 1.1, after the knife arm 3 is controlled by sliding the piston 2 and is opened, the throttling device is inserted into the liquid outlet end of the liquid flow holes 2.1 to block the liquid flow holes 2.1, and the liquid flow holes are discharged from the side wall liquid outlet holes 2.2 to wash the knife arm 3 and the knife arm mounting cavity 1.2 so as to prevent coal cinder from being filled in the knife arm mounting cavity 1.2 to influence the reset of the knife arm 3.
As shown in fig. 2, the outlet end of the liquid flow hole is provided with a liquid outlet 2.3, the liquid outlet is in a horn shape, and the throttling device is a throttling column 10. The throttle column 10 is fixed on the main rod body 1 and is arranged at the center of the return spring 4 in a penetrating mode, one end, close to the piston 2, of the throttle column 10 is inserted into a liquid outlet end of a liquid outlet hole 2.1 of the piston to seal the liquid outlet hole 2.1, the throttle column is guided through a horn-shaped liquid outlet 2.3 to be convenient to insert, and the inner diameter of the liquid outlet hole 2.1 is equal to the outer diameter of an inserting end of the throttle column 10 to facilitate sealing.
As shown in fig. 3, the throttling device adopts a throttling ring 8, in this case, a liquid outlet 2.3 at the outlet end of the liquid flow hole is cylindrical, the throttling ring is fixed on the main rod body 1 and penetrates through the center of the return spring 4, and one end of the throttling ring 8, which is close to the piston, is inserted into the liquid outlet end of the cooling liquid hole of the piston to block the liquid flow hole 2.1.
One end of the return spring 4 is arranged on the main rod body 1 through a spring seat 9, and the other end of the return spring is pressed on the piston 2. Adopt under reset spring's the condition, be close to the piston position at the inlet and be provided with piston complex go up slide sleeve 6, the piston slides and wears to establish in last slide sleeve 6, installs lower slide sleeve 7 in the spring chamber is close to the one end of piston, and the piston slides and wears to establish in lower slide sleeve 7, realizes the slidable mounting of piston on the main pole body 1 through the cooperation of last slide sleeve 6 and lower slide sleeve 7.
The technical solution and the implementation method listed in the present invention are not limiting, and the technical solution and the implementation method listed in the present invention are equivalent or have the same effect.
Claims (7)
1. The utility model provides a cave device is made to hydraulic power machinery integration reducing in coal seam, including the mobile jib body, mobile jib body center department slidable mounting has the piston, run through the piston and seted up the liquid flow hole, the mobile jib body is close to the feed liquor of liquid flow hole and serves the processing and have the inlet, the arm of a knife installation cavity has been seted up on the mobile jib body lateral wall, the arm of a knife is installed in the arm of a knife installation cavity, processing has the rack section on the piston outer wall, processing has the gear section on the arm of a knife outer wall, rack section and gear section meshing, arm of a knife gear section articulates on the mobile jib body with the one end of piston rack section meshing, the liquid stream that the inlet got into promotes the piston slip in-process and expandes: the main rod body is provided with a spring cavity close to the liquid outlet end of the liquid flow hole, a liquid outlet is formed in one end, away from the piston, of the spring cavity, a return spring is installed in the spring cavity, one end of the return spring is pressed against the piston, the other end of the return spring is pressed against the main rod body, and the piston is pushed to reset through the elastic acting force of the return spring so as to achieve resetting of the cutter arm.
2. The hydraulic-mechanical integrated reducing cave-making device in the coal seam according to claim 1, characterized in that: the position of the outer wall of the piston, which is close to the knife arm, is provided with a plurality of side wall liquid outlet holes communicated with the liquid flow holes, a throttling device is arranged in the spring cavity, after the knife arm is controlled by the piston in a sliding manner to be opened, the throttling device is inserted into the liquid outlet end of the liquid flow holes to block the liquid flow holes, the liquid flow is discharged from the side wall liquid outlet holes to scour the knife arm and the knife arm mounting cavity, and meanwhile, the coal wall is cut through high-pressure liquid.
3. The hydraulic-mechanical integrated reducing cave-making device in the coal seam according to claim 2, characterized in that: the outlet end of the liquid flow hole is provided with a liquid outlet, and the shape of the liquid outlet is horn-shaped or cylindrical.
4. The hydraulic-mechanical integrated reducing cave-making device in the coal seam according to claim 2, characterized in that: the throttling device adopts a throttling column or a throttling ring.
5. The hydraulic-mechanical integrated reducing cave-making device in the coal seam according to claim 4, characterized in that: the throttling column is fixed on the main rod body and penetrates through the center of the reset spring, and one end, close to the piston, of the throttling column is inserted into the liquid outlet end of the liquid flow hole of the piston to block the liquid flow hole.
6. The hydraulic-mechanical integrated reducing cave-making device in the coal seam according to claim 4, characterized in that: the throttling ring is fixed on the main rod body and penetrates through the center of the reset spring, and one end, close to the piston, of the throttling ring is inserted into the liquid outlet end of the liquid flow hole of the piston to block the liquid flow hole.
7. The hydraulic-mechanical integrated reducing cave-making device in the coal seam according to claim 1, characterized in that: the inlet be close to the piston position be provided with piston complex upper sliding sleeve, the piston slides and wears to establish in upper sliding sleeve, install lower sliding sleeve in the one end that the spring chamber is close to the piston, the piston slides and wears to establish in the lower sliding sleeve, through upper sliding sleeve and lower sliding sleeve cooperation realize the slidable mounting of piston on the main mast body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920660110.9U CN210217825U (en) | 2019-05-09 | 2019-05-09 | Hydraulic power and mechanical integrated reducing cave-making device in coal bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920660110.9U CN210217825U (en) | 2019-05-09 | 2019-05-09 | Hydraulic power and mechanical integrated reducing cave-making device in coal bed |
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| CN210217825U true CN210217825U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920660110.9U Active CN210217825U (en) | 2019-05-09 | 2019-05-09 | Hydraulic power and mechanical integrated reducing cave-making device in coal bed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107402A (en) * | 2021-05-18 | 2021-07-13 | 铁福来装备制造集团股份有限公司 | Double-channel variable-diameter cave-making device |
| CN113202416A (en) * | 2021-05-06 | 2021-08-03 | 中煤科工集团西安研究院有限公司 | Multi-channel double-piston mechanical-hydraulic composite hole making drilling tool and hole making method |
-
2019
- 2019-05-09 CN CN201920660110.9U patent/CN210217825U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202416A (en) * | 2021-05-06 | 2021-08-03 | 中煤科工集团西安研究院有限公司 | Multi-channel double-piston mechanical-hydraulic composite hole making drilling tool and hole making method |
| CN113107402A (en) * | 2021-05-18 | 2021-07-13 | 铁福来装备制造集团股份有限公司 | Double-channel variable-diameter cave-making device |
| CN113107402B (en) * | 2021-05-18 | 2023-01-06 | 铁福来装备制造集团股份有限公司 | Double-channel variable-diameter cave-making device |
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Address after: 467000 North Ring Road South, Xinhua District, Pingdingshan City, Henan Province (West of Industrial Park Road, Xinhua District) Patentee after: Tiefulai Equipment Manufacturing Group Co.,Ltd. Address before: 467000 North Ring Road South, Xinhua District, Pingdingshan City, Henan Province (West of Industrial Park Road, Xinhua District) Patentee before: HENAN TIEFULAI EQUIPMENT MANUFACTURING Co.,Ltd. |
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