CN203374202U - High-pressure underwater down-hole hammer - Google Patents
High-pressure underwater down-hole hammer Download PDFInfo
- Publication number
- CN203374202U CN203374202U CN201320330888.6U CN201320330888U CN203374202U CN 203374202 U CN203374202 U CN 203374202U CN 201320330888 U CN201320330888 U CN 201320330888U CN 203374202 U CN203374202 U CN 203374202U
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- China
- Prior art keywords
- lower contact
- high pressure
- under high
- water under
- air hammer
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Abstract
The utility model discloses a high-pressure underwater down-hole hammer. The high-pressure underwater down-hole hammer comprises an upper connector, a check valve, an air distribution base, an inner cylinder, an outer casing pipe, a piston, a guide sleeve, a retaining ring, a sealing ring, a lower connector and a drill bit. A vent groove is formed in the inner surface of the outer casing pipe, and the upper connector and the lower connector are installed at the upper end and the lower end of the outer casing pipe respectively. The drill bit is installed on the lower connector through a sliding key arranged inside the lower connector, and the tail end of the drill bit extends into the inner cavity of the lower connector. The inner cylinder is embedded in the outer casing pipe, and the air distribution base is installed in the inner cavity of the inner cylinder in a sealing mode and provided with the cylindrical air distribution base small end extending into the inner cavity of the inner cylinder. The check valve is installed at the upper end of the air distribution base. The piston, the guide sleeve and the retaining ring clamping the tail end of the drill bit are sequentially arranged between the inner cylinder and the lower connector. The sealing ring is arranged between the inner cavity of the lower connector and the outer cylindrical surface of the tail portion of the drill bit, and effectively prevents external water, sludge, dust and the like from entering the down-hole hammer.
Description
Technical field
The utility model relates to a kind of down-the-hole air hammer, relates in particular to down-the-hole air hammer under a kind of water under high pressure.
Background technology
In native lapicide's journeys such as mine, water power, railway, highway, building, military project, generally all need drilling and blasting, high pneumatic dth drill boring is exactly a kind of new efficient, energy-conservation drilling technique that developed recently gets up, and wherein High air-pressure DTH hammer is the critical component of high pneumatic dth drill.Common High air-pressure DTH hammer, due to structure, can not work in the stratum large in water content, more can not work under water, has so just limited the range of application of common High air-pressure DTH hammer.
Therefore, the waterproof sealing that how to improve High air-pressure DTH hammer becomes those skilled in the art's problem demanding prompt solution.
The utility model content
The purpose of this utility model is to provide down-the-hole air hammer under a kind of water under high pressure that can effectively stop outside water, mud, dust etc. to enter down-the-hole air hammer inside,
Down-the-hole air hammer under a kind of water under high pressure, comprise top connection, non retern valve, the distribution seat, inner casing, outer tube, piston, fairlead, retaining ring, lower contact and bore bit, described outer tube sleeve inner surface is provided with air channel, described top connection and lower contact are installed on respectively the upper and lower two ends of outer tube, described bore bit is installed in lower contact by the feather key arranged in lower contact, and the bore bit tail end extends into the lower contact inner chamber, described inner casing is flush-mounted in outer tube, the distribution seat is seal-installed on the inner casing inner chamber and is provided with the column distribution seat small end that stretches into the inner casing inner chamber, non retern valve is installed on distribution seat upper end, between described inner casing and lower contact, be provided with successively piston, the retaining ring of fairlead and clamping bore bit tail end, it is characterized in that, between described lower contact inner chamber and bore bit afterbody external cylindrical surface, also be provided with joint ring.
Preferably, described joint ring is the bulge loop that is fixed on the lower contact inner chamber.
Preferably, described joint ring quantity is 2.
In order to improve the frequency of impact of impactor piston, improve penetration rate and reach energy-conservation purpose, described inner casing external cylindrical surface is provided with the middle concave slot part.
Described middle concave slot part both sides are provided with air inlet and venthole.
Described air inlet and venthole cross section are circular.
Described air inlet and two ends, venthole cross section are circular, and centre is rectangle.
Preferably, described air inlet and venthole quantity are 8.
For further strengthening the venting capability of impactor, the 4 road U-lags that described distribution seat is held greatly cylindrical to be provided with to be arranged symmetrically with.
During the beneficial effects of the utility model: by the setting of joint ring, efficiently solve the sealing problem of High air-pressure DTH hammer, play positive effect to stoping outside water, mud, dust etc. to enter down-the-hole air hammer inside, thereby solved the difficult problem of impactor underwater operation; , by the cylinder to High air-pressure DTH hammer and distribution seat, improved simultaneously, effectively promoted the drilling efficiency of High air-pressure DTH hammer.
The accompanying drawing explanation
Fig. 1 is down-the-hole air hammer structural representation under a kind of water under high pressure of the utility model;
Fig. 2 is the utility model inner casing front view;
Fig. 3 is the utility model inner casing left view;
Fig. 4 is the utility model distribution seat front view;
Fig. 5 is the utility model distribution seat left view.
In accompanying drawing: 1, top connection, 2, non retern valve, 3, the distribution seat, 4, inner casing,
5, outer tube, 6, piston, 7, fairlead, 8, retaining ring,
9, joint ring, 10, lower contact, 11, bore bit, 12, concave part,
13, air inlet, 14, venthole, 15, U-lag
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Referring to accompanying drawing, down-the-hole air hammer under a kind of water under high pressure, comprise top connection 1, non retern valve 2, distribution seat 3, inner casing 4, outer tube 5, piston 6, fairlead 7, retaining ring 8, joint ring 9, lower contact 10 and bore bit 11, top connection 1 is connected with the drilling rod of rig, to transmit the rotation torque of rig, lower contact 10 is connected with bore bit 11, with realization, in rock, hole, outer tube sleeve 5 inner surfaces are provided with air channel and ventilate for impactor, top connection 1 and lower contact 10 are installed on respectively outer tube, and Shang Xia 5 two ends, bore bit 11 is installed in lower contact 10 by the feather key of lower contact 10 interior settings, and bore bit 11 tail ends extend into lower contact 10 inner chambers, inner casing 4 is flush-mounted in outer tube 5 inner chamber upper ends, be provided with concave part 12 in the middle of inner casing 4, concave part 12 two ends are respectively equipped with air inlet 13 and venthole 14, air inlet 13 and venthole 14 are evenly arranged on the face of cylinder.
Distribution seat 3 is seal-installed on inner casing 4 inner chambers and is provided with the column distribution seat small end that stretches into inner casing 4 inner chambers, the large end cylindrical of distribution seat 3 is provided with the 4 road U-lags 15 that are arranged symmetrically with, non retern valve 2 is installed on distribution seat 3 upper ends, between inner casing 4 and lower contact 10, set gradually piston 6, the retaining ring 8 of fairlead 7 and clamping bore bit 11 tail ends, between lower contact 10 inner chambers and bore bit 11 afterbody external cylindrical surfaces, also be provided with 2 joint rings 9, sealing ring 9 and lower contact 10 global formations, and be arranged on lower contact 10 inner chambers.
During concrete enforcement, two joint rings 9 have been increased because lower contact 10 is interior, when external water pressure is larger, two joint rings 9 can effectively stop outside water, mud etc. to enter impactor inside by the junction of bore bit 11 and lower contact 10, therefore can guarantee that this impactor drill bit runs well in deep water, solve the difficult problem of underwater operation; While, due to shape, the size in the inlet and outlet hole of distribution seat 3 and inner casing 4 and the setting of the position of arranging, has been improved the frequency of impact of impactor piston, has reached and has improved penetration rate and reach energy-conservation purpose.
Above down-the-hole air hammer under a kind of water under high pressure provided by the utility model is described in detail.Applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (9)
1. down-the-hole air hammer under a water under high pressure, comprise top connection (1), non retern valve (2), distribution seat (3), inner casing (4), outer tube (5), piston (6), fairlead (7), retaining ring (8), lower contact (10) and bore bit (11), described outer tube sleeve (5) inner surface is provided with air channel, described top connection (1) and lower contact (10) are installed on respectively the upper and lower two ends of outer tube (5), described bore bit (11) is installed in lower contact (10) by the feather key arranged in lower contact (10), and bore bit (11) tail end extends into lower contact (10) inner chamber, described inner casing (4) is flush-mounted in outer tube (5), distribution seat (3) is seal-installed on inner casing (4) inner chamber and is provided with the column distribution seat small end that stretches into inner casing (4) inner chamber, non retern valve (2) is installed on distribution seat (3) upper end, between described inner casing (4) and lower contact (10), be provided with successively piston (6), the retaining ring (8) of fairlead (7) and clamping bore bit (11) tail end, it is characterized in that, between described lower contact (10) inner chamber and bore bit (11) afterbody external cylindrical surface, also be provided with joint ring (9).
2. down-the-hole air hammer under water under high pressure according to claim 1, is characterized in that, described joint ring (9) is for being fixed on the bulge loop of lower contact (10) inner chamber.
3. down-the-hole air hammer under water under high pressure according to claim 2, is characterized in that, described joint ring (9) quantity is 2.
4. down-the-hole air hammer under water under high pressure according to claim 1, is characterized in that, described inner casing (4) external cylindrical surface is provided with middle concave slot part (12).
5. down-the-hole air hammer under water under high pressure according to claim 4, is characterized in that, described middle concave slot part (12) both sides are provided with air inlet (13) and venthole (14).
6. down-the-hole air hammer under water under high pressure according to claim 5, is characterized in that, described air inlet (13) and venthole (14) cross section are circular.
7. down-the-hole air hammer under water under high pressure according to claim 5, is characterized in that, described air inlet (13) and venthole (14) two ends, cross section are circular, and centre is rectangle.
8. according to down-the-hole air hammer under claim 5 or 6 or 7 described water under high pressures, it is characterized in that, described air inlet (13) and venthole (14) quantity are 8.
9. down-the-hole air hammer under water under high pressure according to claim 1, is characterized in that, the 4 road U-lags (15) that described distribution seat (3) is held greatly cylindrical to be provided with to be arranged symmetrically with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330888.6U CN203374202U (en) | 2013-06-08 | 2013-06-08 | High-pressure underwater down-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330888.6U CN203374202U (en) | 2013-06-08 | 2013-06-08 | High-pressure underwater down-hole hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374202U true CN203374202U (en) | 2014-01-01 |
Family
ID=49836745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320330888.6U Expired - Fee Related CN203374202U (en) | 2013-06-08 | 2013-06-08 | High-pressure underwater down-hole hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374202U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265154A (en) * | 2014-09-19 | 2015-01-07 | 宜昌市五环钻机具有限责任公司 | Novel down-the-hole impactor |
| CN104265159A (en) * | 2014-09-19 | 2015-01-07 | 宜昌市五环钻机具有限责任公司 | Down hole hammer |
| CN110159187A (en) * | 2019-07-10 | 2019-08-23 | 长江大学 | A kind of High air-pressure DTH hammer |
-
2013
- 2013-06-08 CN CN201320330888.6U patent/CN203374202U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265154A (en) * | 2014-09-19 | 2015-01-07 | 宜昌市五环钻机具有限责任公司 | Novel down-the-hole impactor |
| CN104265159A (en) * | 2014-09-19 | 2015-01-07 | 宜昌市五环钻机具有限责任公司 | Down hole hammer |
| CN110159187A (en) * | 2019-07-10 | 2019-08-23 | 长江大学 | A kind of High air-pressure DTH hammer |
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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: 20140101 Termination date: 20160608 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |