CN201934016U - Down-the-hole hammer - Google Patents
Down-the-hole hammer Download PDFInfo
- Publication number
- CN201934016U CN201934016U CN2010206205981U CN201020620598U CN201934016U CN 201934016 U CN201934016 U CN 201934016U CN 2010206205981 U CN2010206205981 U CN 2010206205981U CN 201020620598 U CN201020620598 U CN 201020620598U CN 201934016 U CN201934016 U CN 201934016U
- Authority
- CN
- China
- Prior art keywords
- piston
- outer shell
- distribution bar
- joint
- pore
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a down-the-hole hammer which comprises an outer cylinder, a joint, an air distribution base, an air distribution rod, a piston, a bushing, a drill sleeve and a drill bit, wherein one end of the outer cylinder is connected with the joint and the other of the outer cylinder is connected with the drill sleeve; one end of the air distribution base is connected with the joint and the other end of the air distribution base is connected with the air distribution rod; the piston is arranged in an inner cavity of the outer cylinder; one end of the piston is connected with the air distribution rod and the other end of the piston is connected with the bushing; a front side hole and a rear side hole are arranged on the piston; the front side hole is communicated with a front air chamber and the rear side hole is communicated with a rear air chamber; and the outer cylinder is provided with a positioning stop screw corresponding to the air distribution rod. The down-the-hole hammer has the advantages of simple structure, long service life, stable working and high rock breaking speed, and can be applicable to open-air and underground drilling and blasting places and metal or nonmetal mine and various stone pits.
Description
Technical field
The utility model relates to a kind of down-the-hole air hammer, and refering in particular to is a kind of down-the-hole air hammer that is exclusively used in high blast rig bore operation.
Background technology
Along with the develop rapidly of the development of the national economy, in the process that is being used for the infrastructure pulling national economic development, in bore operation, use a kind of fast, efficient, stable, economy, long impactor of life-span becomes present urgency problem to be solved.
Old-fashioned down-the-hole air hammer employing excavation inside groove on the inwall of outer shell comes the each several part part is carried out stationary positioned, and design has increased the ditching groove quantity on the outer inside wall of cylinder undoubtedly like this, and outer shell is increased because of the possibility that the ditching groove ruptures.In addition, old-fashioned down-the-hole air hammer generally adopts by the mode that inner casing is set in outer shell and carries out distribution.Because of the internal diameter size of the employed outer shell of various down-the-hole air hammers is consistent, increased the diameter that inner casing has then reduced piston undoubtedly, also just reduced the quality of piston, and piston is the heart component of whole down-the-hole air hammer, it is a very high part of requirement, piston is big more, and then the possibility of piston fracture is more little.Also have, to be that the employing center is logical pass through excellent capitate structure to old-fashioned down-the-hole air hammer piston, and the piston deadly defect of this structure is to be easy to generate in the use stress and concentrates, and the possibility that piston produces fracture strengthens.Below what time always be the main cause that impactor application life is short, service efficiency is low.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art and provides a kind of simple in structure, long service life, and transfer torque is strong, it is reliable to connect, and reduces drop a kind of down-the-hole air hammer of hidden danger of drill bit.
The purpose of this utility model is achieved by following technical proposals:
A kind of down-the-hole air hammer, comprise the joint that has the joint pore, the distribution seat, inside has distribution bar pore and the whole thin distribution bar of the thick end of T word shape one end that is, have the outer shell of the hollow cavity of perforation along axis, have the piston pore and the whole thin piston of the thick end of T word shape one end that is of perforation along axis, the card drill sleeve, drill bit, its described outer shell one end is fixedlyed connected with described joint, the other end is fixedlyed connected with described card drill sleeve, described distribution bar is located in the inner chamber of outer shell, described distribution seat is located in the inner chamber of outer shell and is between joint and the distribution bar, described piston is arranged in the described outer shell inner chamber, a thinner end of distribution bar is inserted in the piston pore of the thicker end of piston, the thinner end of piston forms preceding air chamber with the space that the end of an end of the outer inside wall of cylinder and card drill sleeve is reserved, institute's spacing forms rear gas chamber between the end of the thin part of the T word shape structure of distribution bar and the outer inside wall of cylinder and the thicker end of piston, also be provided with distribution bar side pore on the bottom sidewall of a thinner end of distribution bar, also be provided with front-side holes and back side opening on the described piston, described front-side holes is communicated with preceding air chamber, and described back side opening is communicated with rear gas chamber.
Above-mentioned down-the-hole air hammer also is provided with the location retaining silk of answering with the distribution pole pair in its described outer shell, described location retaining silk is arranged at the sidewall and outer inside wall of cylinder contact position of the thicker end of distribution bar.
Above-mentioned down-the-hole air hammer, also be provided with the lining that seals in its described outer shell, described lining is arranged in thinner end of piston and the formed space of the outer inside wall of cylinder and an end is connected to the card drill sleeve, and the thinner end of piston forms preceding air chamber with the space that the end of an end of the outer inside wall of cylinder and lining is reserved.
Above-mentioned down-the-hole air hammer also is provided with the snap ring that is used for fixing drill bit in its described outer shell, and described snap ring is arranged between lining and the card drill sleeve.
Above-mentioned down-the-hole air hammer, its described drill bit directly contacts with described piston.
Above-mentioned down-the-hole air hammer, its described drill bit adopts spline to be connected with described card drill sleeve.
Owing to adopt such scheme, adopt retaining silk location, reduced outer shell grooving quantity, cancelled traditional inner casing gas distribution structure, structure is simpler, assembles more convenient, make outer shell life-span lengthening, the possibility of fracture reduces, and has strengthened the quality of piston, make the down-the-hole air hammer impact energy bigger, efficient is higher, has solved the often problem of fracture of piston, the employing snap ring connects, drill bit is not fallen down when work makes, adopt spline to connect, effectively transfer torque.
In sum, described utility model---a kind of down-the-hole air hammer has simple in structure, long service life, and transfer torque is strong, connection is reliable, reduce the drill bit advantages such as hidden danger that drop, the applicable rock drill of using with fields such as ore deposit, ground, water power, highway, railway, well, oil well, underground heat.
Description of drawings
Accompanying drawing 1 is a kind of down-the-hole air hammer structural representation.
As shown in the figure, 1---joint, 2---non retern valve, 3---joint O shape circle, 4---the non retern valve spring, 5---the pressure-bearing pad, 6---the distribution seat, 7---distribution bar O shape circle, 8---the retaining silk, 9---the distribution bar, 10---outer shell, 11---piston, 12---lining O shape circle, 13---lining, 14---snap ring, 15---snap ring O shape circle, 16---the card drill sleeve, 17---drill bit, 18---side opening behind the piston, 19---the piston front-side holes, 20---air chamber before the piston, 21---piston rear gas chamber, 22---distribution bar side pore.
The specific embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of down-the-hole air hammer in detail.
Referring to Fig. 1, the utility model comprises the joint 1 that has the joint pore, distribution seat 6, inside has distribution bar pore and the whole thin distribution bar 9 of the thick end of T word shape one end that is, have the outer shell 10 of the hollow cavity of perforation along axis, have the piston pore and the whole thin piston 11 of the thick end of T word shape one end that is of perforation along axis, card drill sleeve 16, drill bit 17, its described outer shell 10 1 ends are fixedlyed connected with described joint 1, the other end is fixedlyed connected with described card drill sleeve 17, described distribution bar 9 is located in the inner chamber of outer shell 10, described distribution seat 6 is located in the inner chamber of outer shell 10 and is between joint and the distribution bar, described piston 11 is arranged in described outer shell 10 inner chambers, a thinner end of distribution bar 9 is inserted in the piston pore of piston 11 thicker ends, air chamber 20 before the space that the end of one end of piston 11 thinner ends and outer shell 10 inwalls and card drill sleeve 16 is reserved forms, institute's spacing forms rear gas chamber 21 between the end of the thin part of the T word shape structure of distribution bar 9 and outer shell 10 inwalls and piston 11 thicker ends, also be provided with distribution bar side pore 22 on the bottom sidewall of a thinner end of distribution bar 9, also be provided with front-side holes 19 and back side opening 18 on the described piston 11, described front-side holes 19 is communicated with preceding air chamber 20, described back side opening 18 is communicated with rear gas chamber 21, and described drill bit 17 is connected to card drill sleeve 16.
Above-mentioned down-the-hole air hammer also is provided with the location retaining silk 8 corresponding with distribution bar 9 in its described outer shell 10, described location retaining silk is arranged at the sidewall and the outer shell 10 inwall contact positions of distribution bar 9 thicker ends.
Above-mentioned down-the-hole air hammer, also be provided with the lining 13 that seals in its described outer shell 10, described lining 13 is arranged in piston 11 thinner ends and the formed space of outer shell 10 inwalls and an end is connected to card drill sleeve 17, and the space that the end of an end of piston 11 thinner ends and outer shell 10 inwalls and lining 13 is reserved forms preceding air chamber 20.
Above-mentioned down-the-hole air hammer also is provided with the snap ring 14 that is used for fixing drill bit 17 in its described outer shell 10, and described snap ring is arranged between lining 13 and the card drill sleeve 17.
Above-mentioned down-the-hole air hammer, its described drill bit 17 directly contacts with described piston 11.
Above-mentioned down-the-hole air hammer, its described drill bit 17 adopts spline to be connected with described card drill sleeve 16.
Operating principle of the present utility model is as follows:
Gases at high pressure enter along joint 1 joint pore, push non retern valve 2 open, pore by distribution seat 6 successively, the distribution bar pore of distribution bar 9, the distribution bar side pore 22 of distribution this moment bar 9 lower ends is communicated with the front-side holes 19 of piston 11, gases at high pressure enter preceding air chamber 20 by the inside groove of outer shell 10 again, the promotion piston 11 that expands in preceding air chamber 20 moves upward, the side pore of distribution bar 9 lower ends and the front-side holes 19 of piston 11, the inside groove of outer shell 10 and piston 11 seal gradually, when piston 11 separates with lining 13, the gas of preceding air chamber 20 is discharged impactor by drill bit 17 centre bores, participate in deslagging, piston 11 continues to move upward owing to inertia, rear gas chamber's 21 gases are compressed, the distribution bar side pore 22 of distribution bar 9 lower ends and the back side opening of piston 11 18 are communicated with, gases at high pressure enter rear gas chamber's 21 expansion promotion pistons 11 and move downward, the back side opening 18 that moves to piston 11 when piston 11 and distribution bar 9 lower ends break away from when cooperating, rear gas chamber's 21 gases are discharged impactor by the back side opening 18 of piston from drill bit 17 centre bores, participate in deslagging, when piston 11 moves to bottom drill hammer 17, the side pore of distribution bar 9 lower ends is communicated with the front-side holes 19 of piston 11, thereby piston is motion repeatedly as mentioned above, makes the impactor operate as normal.
Claims (6)
1. down-the-hole air hammer, comprise the joint (1) that has the joint pore, distribution seat (6), inside has distribution bar pore and the whole thin distribution bar (9) of the thick end of T word shape one end that is, have the outer shell (10) of the hollow cavity of perforation along axis, have the piston pore and the whole thin piston (11) of the thick end of T word shape one end that is of perforation along axis, card drill sleeve (16), drill bit (17), it is characterized in that: described outer shell (10) one ends are fixedlyed connected with described joint (1), the other end is fixedlyed connected with described card drill sleeve (17), described distribution bar (9) is located in the inner chamber of outer shell (10), described distribution seat (6) is located in the inner chamber of outer shell (10) and is between joint and the distribution bar, described piston (11) is arranged in described outer shell (10) inner chamber, a thinner end of distribution bar (9) is inserted in the piston pore of the thicker end of piston (11), the space that the end of one end of thinner end of piston (11) and outer shell (10) inwall and card drill sleeve (16) is reserved forms preceding air chamber (20), institute's spacing forms rear gas chamber (21) between the end of the thin part of the T word shape structure of distribution bar (9) and outer shell (10) inwall and the thicker end of piston (11), also be provided with distribution bar side pore (22) on the bottom sidewall of a thinner end of distribution bar (9), also be provided with front-side holes (19) and back side opening (18) on the described piston (11), described front-side holes (19) is communicated with preceding air chamber (20), described back side opening (18) is communicated with rear gas chamber (21), and described drill bit (17) is connected to card drill sleeve (16).
2. down-the-hole air hammer according to claim 1, it is characterized in that: also be provided with the location retaining silk (8) corresponding with distribution bar (9) in the described outer shell (10), described location retaining silk is arranged at the sidewall and outer shell (10) the inwall contact position of the thicker end of distribution bar (9).
3. down-the-hole air hammer according to claim 1, it is characterized in that: also be provided with the lining (13) that seals in the described outer shell (10), described lining (13) is arranged in thinner end of piston (11) and the formed space of outer shell (10) inwall and an end is connected to card drill sleeve (17), and the space that the end of an end of thinner end of piston (11) and outer shell (10) inwall and lining (13) is reserved forms preceding air chamber (20).
4. down-the-hole air hammer according to claim 1 is characterized in that: also be provided with the snap ring (14) that is used for fixing drill bit (17) in the described outer shell (10), described snap ring is arranged between lining (13) and the card drill sleeve (17).
5. down-the-hole air hammer according to claim 1 is characterized in that: described drill bit (17) directly contacts with described piston (11).
6. down-the-hole air hammer according to claim 1 is characterized in that: described drill bit (17) adopts spline to be connected with described card drill sleeve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206205981U CN201934016U (en) | 2010-11-18 | 2010-11-18 | Down-the-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206205981U CN201934016U (en) | 2010-11-18 | 2010-11-18 | Down-the-hole hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934016U true CN201934016U (en) | 2011-08-17 |
Family
ID=44445538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206205981U Expired - Lifetime CN201934016U (en) | 2010-11-18 | 2010-11-18 | Down-the-hole hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934016U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587824A (en) * | 2012-03-21 | 2012-07-18 | 宣化苏普曼钻潜机械有限公司 | High-wind-pressure impactor |
| CN102606066A (en) * | 2012-03-31 | 2012-07-25 | 宣化苏普曼钻潜机械有限公司 | Impacter |
| CN103334693A (en) * | 2013-06-20 | 2013-10-02 | 长沙天和钻具机械有限公司 | Down-hole hammer piston and machining process thereof |
| CN109184551A (en) * | 2018-11-21 | 2019-01-11 | 长沙黑金刚实业有限公司 | impactor |
| CN115596347A (en) * | 2022-12-15 | 2023-01-13 | 长沙黑金刚实业有限公司（Cn） | Down-the-hole hammer |
-
2010
- 2010-11-18 CN CN2010206205981U patent/CN201934016U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587824A (en) * | 2012-03-21 | 2012-07-18 | 宣化苏普曼钻潜机械有限公司 | High-wind-pressure impactor |
| CN102587824B (en) * | 2012-03-21 | 2015-02-04 | 宣化苏普曼钻潜机械有限公司 | High-wind-pressure impactor |
| CN102606066A (en) * | 2012-03-31 | 2012-07-25 | 宣化苏普曼钻潜机械有限公司 | Impacter |
| CN103334693A (en) * | 2013-06-20 | 2013-10-02 | 长沙天和钻具机械有限公司 | Down-hole hammer piston and machining process thereof |
| CN109184551A (en) * | 2018-11-21 | 2019-01-11 | 长沙黑金刚实业有限公司 | impactor |
| CN115596347A (en) * | 2022-12-15 | 2023-01-13 | 长沙黑金刚实业有限公司（Cn） | Down-the-hole hammer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201934016U (en) | Down-the-hole hammer | |
| CN100557185C (en) | Hollow hammer hole bottom strong suction apparatus | |
| CN201273137Y (en) | Novel downhole air hammer | |
| CN203547523U (en) | Down-hole hammer for high-air-pressure drilling machine drilling work | |
| CN103628815B (en) | A kind of nearly drill bit reverses, Oscillatory Coupling impactor | |
| CN2929636Y (en) | Multiway energy focus blasting device | |
| CN204851057U (en) | Hyperbar is soon towards down --hole churn drilling tools | |
| CN105156025B (en) | A kind of hyperbar rushes down-hole percussion drill tool soon | |
| CN203547522U (en) | Down-hole hammer | |
| CN201087695Y (en) | High wind pressure downhole air hammer | |
| CN203603758U (en) | High-frequency impactor | |
| CN206571429U (en) | A kind of mining machinery mining drill bit | |
| CN109296311A (en) | A kind of high pressure gas down-the-hole air hammer | |
| CN106522844B (en) | Cross drill hammer structure, the Spiral digging machine drill bit containing the structure and its application | |
| CN105156024A (en) | Quick-percussion, wear-resistant and long-service-life down-the-hole percussive drill tool | |
| CN106401460A (en) | Impact-frequency-adjustable high-wind-pressure deep hole impacter | |
| CN207278184U (en) | Down-the-hole air hammer piston | |
| CN203603755U (en) | Guide impactor for high wind pressure drilling operation | |
| CN103277043A (en) | Efficient medium-low-pressure down-hole hammer | |
| CN203114165U (en) | Cyclone band tail pipe high wind pressure down-hole hammer | |
| CN202850855U (en) | High pressure water down-hole hammer | |
| CN201292761Y (en) | High wind pressure downhole air hammer | |
| CN213928226U (en) | Large-diameter combined impactor gas distribution structure and down-the-hole drill | |
| CN204851058U (en) | Soon towards stand wear and tear high life down --hole churn drilling tools | |
| CN102587824B (en) | High-wind-pressure impactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |