CN203867462U - High-low pressure hydraulic punching converter - Google Patents
High-low pressure hydraulic punching converter Download PDFInfo
- Publication number
- CN203867462U CN203867462U CN201420314213.7U CN201420314213U CN203867462U CN 203867462 U CN203867462 U CN 203867462U CN 201420314213 U CN201420314213 U CN 201420314213U CN 203867462 U CN203867462 U CN 203867462U
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- low
- pressure
- low pressure
- piston
- pressure water
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Abstract
The utility model discloses a high-low pressure hydraulic punching converter which comprises a shell, a piston, a telescopic mechanism and a connector. The piston, the telescopic mechanism and the connector are mounted in the shell and are sequentially connected with one another; a hollow through hole is formed inside the shell, and a high-pressure water outlet which is communicated with the central through hole is formed in the outer wall of the shell; a groove is formed in the inner wall of the shell, an opening which is formed in a certain end of the groove is a low-pressure water inlet, the certain end of the groove is positioned at the piston, and a low-pressure water outlet is formed in the other end of the groove; the high-pressure water outlet is formed in a position between the low-pressure water inlet and the low-pressure water outlet. The high-low pressure hydraulic punching converter has the advantages that pressures can be applied to the piston by high-low pressure water, so that the piston can be repositioned, low-pressure water supply or high-pressure water supply effects can be realized, the high-low pressure hydraulic punching converter is simple in operation, safe in use and high in efficiency, and is practical, and repeated replacement can be omitted.
Description
Technical field
The utility model relates to a kind of high-low pressure hydraulic flushing in hole converter, the rig while being mainly used in gas drainage under suction.
Background technology
For high fiery colliery exploitation, the gas drainage under suction before must exploiting in advance, drilling, through rock to coal seam, is buried extraction pipeline underground and is carried out extraction; And in order to improve the effect of extraction, generally all adopt to increase the diameter of holing in coal seam, make coal seam release loose.In order to reach this effect, existing way is to use target drill to beat behind finishing drilling hole, extracts drilling rod and changes punching drill bit, continue into drilling rod, then use water under high pressure punching, although punching produces effect like this, replacing back and forth is not only wasted time and energy, inefficiency, and also labour intensity is large.
Utility model content
For solving problems of the prior art, the purpose of this utility model is to provide a kind of efficient high-low pressure hydraulic flushing in hole converter simple to operate, safe and practical.
For achieving the above object, the technological means that the utility model is taked is: high-low pressure hydraulic flushing in hole converter, the piston, telescoping mechanism, the connector that in comprising shell body and being arranged on shell body, are connected successively; Described shell body inside is hollow bore, and wall has the high-pressure outlet communicating with central through hole outside body skin; Inner walls has groove outside, and the end opening that groove is positioned at piston place is low-pressure intake, and what be positioned at the other end is low pressure delivery mouth; The position that high-pressure outlet arranges is between low-pressure intake and low pressure delivery mouth.
Further, described telescoping mechanism is a kind of of spring and stopping means or the known elastic body with pressurized elastic telescopic and stopping means combination.
Further, described high-pressure outlet arranges at least one.
Further, described high-pressure outlet arranges several on wall outside body skin, and it is distributed on the shell body outer wall between low-pressure intake and low pressure delivery mouth.
The beneficial effects of the utility model are: by height setting-out, the exert pressure position that changes piston of piston realized low pressure and supplied water or high service, and simple to operate, use safety, need not change back and forth practicality and high efficiency.
Accompanying drawing explanation
Below in conjunction with view and embodiment, the utility model is described in detail.
Fig. 1 is structural representation of the present utility model.
In figure: 1, shell body, 2, piston, 3, telescoping mechanism, 4, connector, 5, high-pressure outlet, 6, groove, 7, low-pressure intake, 8, low pressure delivery mouth.
The specific embodiment
High-low pressure hydraulic flushing in hole converter as shown in Figure 1, the piston 2, telescoping mechanism 3, the connector 4 that in comprising shell body 1 and being arranged on shell body 1, are connected successively; Described shell body 1 inside is hollow bore, and wall has the high-pressure outlet 5 communicating with central through hole outside body skin; Inner walls has groove 6 outside, and the end opening that groove is positioned at piston place is low-pressure intake 7, and what be positioned at the other end is low pressure delivery mouth 8; The position that high-pressure outlet 5 arranges is between low-pressure intake 7 and low pressure delivery mouth 8.
What further, described telescoping mechanism 3 was spring and stopping means or the known elastic body with pressurized elastic telescopic and stopping means combination is a kind of.
Further, described high-pressure outlet 5 arranges at least one.
Further, described high-pressure outlet 5 arranges several on shell body 1 outer wall, and it is distributed on shell body 1 outer wall between low-pressure intake 7 and low pressure delivery mouth 8.
During use, generally, adopt the static pressure water punching of drilling in down-hole cooling, now the pressure of water is between 1～4MPa, and hydraulic pressure is shifted piston 2 between low-pressure intake 7 and low pressure delivery mouth 8 onto, and has blocked high-pressure outlet 5, and now water is used for holing cooling; When drill bit is once arrive coal seam through rock, water under high pressure punching is used in outside artificial conversion, water pressure is now greater than 4MPa, between 4～15MPa, hydraulic pressure further promotes piston 2, high-pressure outlet 5 is opened and low pressure delivery mouth 8 is blocked by piston 2, and water under high pressure is just gone out at a high speed from the hole mesohigh of high-pressure outlet 5, and coal body is cut.
While adopting water under high pressure punching, as long as change water under high pressure in drilling rod water inlet, water under high pressure enters after converter, and its inner automatic switchover high and low pressure delivery port, when water under high pressure forms high-pressure water jet from the high-pressure outlet ejection of converter, in addition drilling rod integral body is twitched back and forth and is added rotation, high-pressure water jet cuts coal body, and ickings is gone out to boring, and the diameter of coal seam hole drilling is increased, make coal seam release loose, reach the effect of gas drainage under suction.
Claims (4)
1. high-low pressure hydraulic flushing in hole converter, is characterized in that: the piston (2), telescoping mechanism (3), the connector (4) that in comprising shell body (1) and being arranged on shell body (1), are connected successively; Described shell body (1) inside is hollow bore, and wall has the high-pressure outlet (5) communicating with central through hole outside body skin; Inner walls has groove (6) outside, and the end opening that groove is positioned at piston place is low-pressure intake (7), and what be positioned at the other end is low pressure delivery mouth (8); The position that high-pressure outlet (5) arranges is between low-pressure intake (7) and low pressure delivery mouth (8).
2. high-low pressure hydraulic flushing in hole converter according to claim 1, is characterized in that: a kind of for for spring and stopping means or the known elastic body with pressurized elastic telescopic and stopping means combination of described telescoping mechanism (3).
3. high-low pressure hydraulic flushing in hole converter according to claim 1, is characterized in that: described high-pressure outlet (5) at least one is set.
4. high-low pressure hydraulic flushing in hole converter according to claim 1, it is characterized in that: described high-pressure outlet (5) arranges several on shell body (1) outer wall, it is distributed on shell body (1) outer wall being positioned between low-pressure intake (7) and low pressure delivery mouth (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314213.7U CN203867462U (en) | 2013-09-18 | 2014-06-09 | High-low pressure hydraulic punching converter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320599761 | 2013-09-18 | ||
| CN201320599761.4 | 2013-09-18 | ||
| CN201420314213.7U CN203867462U (en) | 2013-09-18 | 2014-06-09 | High-low pressure hydraulic punching converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867462U true CN203867462U (en) | 2014-10-08 |
Family
ID=51648432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420314213.7U Expired - Fee Related CN203867462U (en) | 2013-09-18 | 2014-06-09 | High-low pressure hydraulic punching converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485721A (en) * | 2013-09-19 | 2014-01-01 | 王德昌 | High-low-pressure hydraulic hole flushing switcher |
-
2014
- 2014-06-09 CN CN201420314213.7U patent/CN203867462U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485721A (en) * | 2013-09-19 | 2014-01-01 | 王德昌 | High-low-pressure hydraulic hole flushing switcher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20160609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |