CN203547522U - Down-hole hammer - Google Patents
Down-hole hammer Download PDFInfo
- Publication number
- CN203547522U CN203547522U CN201320675119.XU CN201320675119U CN203547522U CN 203547522 U CN203547522 U CN 203547522U CN 201320675119 U CN201320675119 U CN 201320675119U CN 203547522 U CN203547522 U CN 203547522U
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- Prior art keywords
- distribution bar
- piston
- pore
- hole
- air
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims description 37
- 239000011435 rock Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Provided is a down-hole hammer. One end of an outer cylinder is fixedly connected with a connector, the other end of the outer cylinder is fixedly connected with a drive chuck, an air distribution rod is arranged between the connector and a piston of an inner cavity of the outer cylinder, one end of the gas distribution rod is inserted into one end, with a thick air hole, of the piston, a check valve base is installed at the other end of the gas distribution rod and provided with a check valve, the check valve can open and close an air hole in the middle of the connector, the piston is arranged in the inner cavity of the outer cylinder, rear air chambers are formed by spaces among the end, with the thick air hole, of the piston, the air distribution rod and the inner walls of the outer cylinder, linings playing a role in sealing are further arranged in the outer cylinder, the linings are arranged in spaces formed by one end, with a thin air hole, of the piston and the inner walls of the outer cylinder, one end of each lining is connected to the drive chuck, each front air chamber is formed by a space reserved among the end, with the thin air hole, of the piston, the inner wall of the outer cylinder and one end of the corresponding lining, the air distribution rod is provided with an air distribution rod front side hole, air distribution rod middle side holes and air distribution rod rear side holes, the air distribution rod front side hole is communicated with one front air chamber, one air distribution rod rear side hole is communicated with the corresponding rear air chamber, and a drill bit is connected with the drive chuck. The down-hole hammer has the advantages of being simple in structure, long in service life, stable in operation, high in rock breaking speed and the like, and can be suitable for various well projects, bridge holes, pipe foundations and other deep holes.
Description
Technical field
The utility model relates to a kind of down-the-hole air hammer.
Background technology
Along with the develop rapidly of the development of the national economy, for infrastructure, pulling the process of the national economic development, in bore operation, use a kind of fast, efficient, stable, economy, long impactor of life-span becomes problem anxious to be resolved at present.
Old-fashioned down-the-hole air hammer adopts and on the inwall of outer shell, excavates inside groove each several part part is fixed to location, and design has increased the digging groove quantity on the outer inside wall of cylinder undoubtedly like this, makes outer shell the possibility increase of fracture occur because of digging groove.In addition, old-fashioned down-the-hole air hammer generally adopts by the mode of inner casing is set in outer shell and carries out distribution.The internal diameter size of the outer shell using because of various down-the-hole air hammers is consistent, increase inner casing and reduced undoubtedly the diameter of piston, 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 larger, and the possibility of piston fracture is less.Also have, old-fashioned piston of down-the-hole hammer is that logical the passing through on excellent capitate structure and piston in employing center has many pores, and the piston deadly defect of this structure is that in use procedure, easily producing stress 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.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art and provides a kind of simple in structure, long service life, and transmitting torque is strong, it is reliable to connect, and reduces the drop down-the-hole air hammer of hidden danger of drill bit.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of down-the-hole air hammer, comprise joint, non retern valve, check valve seat, distribution bar, outer shell, piston, lining, card drill sleeve and drill bit, described outer shell one end is fixedly connected with described joint, the other end is fixedly connected with described card drill sleeve, described distribution bar is located between joint described in outer shell inner chamber and described piston, one end of described distribution bar be inserted into piston the thicker one end of pore in, check valve seat is installed on the other end of described distribution bar, described check valve seat is provided with non retern valve, the able to turn on or off described joint of described non retern valve middle part pore, described piston is arranged in described outer shell inner chamber, thicker one end of pore of described piston, space between described distribution bar and the outer inside wall of cylinder forms rear gas chamber, in described outer shell, be also provided with the lining sealing, the thinner one end of pore and Nei Qie one end, the formed space of the outer inside wall of cylinder that described lining is arranged at piston are connected to card drill sleeve, thinner one end of pore of described piston, the space that the end of one end of the described outer inside wall of cylinder and described lining reserves forms front air chamber, described distribution bar is provided with distribution bar front-side holes, side opening after side opening and distribution bar in distribution bar, described distribution bar front-side holes can be communicated with described front air chamber, described piston is provided with the pore that after described distribution bar, side opening is communicated with described rear gas chamber, described drill bit is connected with card drill sleeve.
Described check valve seat is arranged in the endoporus of described distribution bar and contacts with described joint.
Described distribution bar comprises distribution bar main body and outer tube, described outer tube is sleeved between distribution bar main body in thicker one end of pore that described distribution bar inserts piston outer and outer tube and distribution bar main body and is provided with air flue, described air flue is communicated with described joint middle part pore by distribution bar, and in described distribution bar front-side holes and distribution bar, side opening is all arranged on described outer tube.
In described outer shell, be also provided with for fixed drill bit snap ring, described snap ring is arranged between lining and card drill sleeve.
Described drill bit directly contacts with described piston.
Described drill bit and described card drill sleeve adopt spline joint.
Owing to adopting such scheme, adopt step locate mode, reduced outer shell grooving quantity, cancelled traditional inner casing gas distribution structure, structure is simpler, assembles more convenient, the outer shell life-span is lengthened, and the possibility of fracture reduces, and has strengthened the quality of piston, reduced the quantity of pore, made down-the-hole air hammer impact energy larger, efficiency is higher, solved the often problem of fracture of piston, adopted snap ring to connect, drill bit is not fallen down when work makes, adopt spline joint, effectively transmitting torque.
In sum, described inventing type---a kind of down-the-hole air hammer has simple in structure, long service life, and transmitting torque is strong, connection is reliable, reduce the drill bit advantages such as hidden danger that drop, the rock drill that the fields such as applicable and ore deposit, ground, water power, highway, railway, well, oil well, underground heat are used.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In accompanying drawing 1,1---joint, 2---non retern valve, 3---non retern valve spring, 4---check valve seat, 5---distribution bar, 6---side opening after distribution bar, 7---rear gas chamber, 8---side opening in distribution bar, 9---distribution bar outer tube, 10---distribution bar front-side holes, 11---piston, 12---front air chamber, 13---lining, 14---outer shell, 15---snap ring, 16---card drill sleeve, 17---drill bit.
The specific embodiment
Below in conjunction with accompanying drawing, further describe the specific embodiment of this patent.
With reference to Fig. 1, a kind of down-the-hole air hammer, comprise out leachy joint 1, be pressed with the non retern valve 2 of rubber, non retern valve spring 3, have flat side's pore check valve seat 4, inside has air distribution hole, integral body is thin and thin one end, thick one end, T word shape one end for the distribution bar 5 of two sleeve pipes, along axis, have the outer shell 14 of the hollow cavity of perforation, along axis, have the piston 11 that connects pore, lining 13, snap ring 15, card drill sleeve 16, drill bit 17, pore one end of described piston 11 is thinner, the other end is thicker, described outer shell 14 one end are fixedly connected with described joint 1, the other end is fixedly connected with described card drill sleeve 16, described distribution bar 5 is located in the inner chamber of outer shell 14, described check valve seat 4 is located in the inner chamber of outer shell 14 and between joint and distribution bar, described piston 11 is arranged in described outer shell 14 inner chambers, thinner one end of distribution bar 5 is inserted in the pore of piston 11 thicker one end, the space that the end of one end of one end that piston 11 pores are thinner and outer shell 14 inwalls and lining 13 reserves forms front air chamber 12, between the thin part of the T word shape structure of distribution bar 5 and the end of outer shell 14 inwalls and piston 11 thicker one end of pore, institute's spacing forms rear gas chamber 7, described distribution bar 5 is provided with front-side holes 10, middle side opening 8 and rear side opening 6, described front-side holes 10 is communicated with front air chamber 12, described rear side opening 6 is communicated with rear gas chamber 7, described drill bit 17 is connected to card drill sleeve 16.
The down-the-hole air hammer of the above, the check valve seat 4 described in it is placed in the endoporus of described distribution bar 5 thick one end and contacts with described joint 1.
The down-the-hole air hammer of the above, in outer shell 14 described in it, be also provided with the lining 13 sealing, described lining 13 is arranged at piston 11 thinner one end of pore and outer shell 14 Nei Qie one end, the formed space of inwall are connected to card drill sleeve 16, and the space that the end of one end of piston 11 thinner one end of pore and outer shell 14 inwalls and lining 13 reserves forms front air chamber 20.
The down-the-hole air hammer of the above, the distribution bar 5 described in it is comprised of distribution bar 5 main bodys and described outer tube 9 and has formed the dual gas passage of crossing.
The down-the-hole air hammer of the above, is also provided with the snap ring 15 for fixed drill bit 17 in the outer shell 14 described in it, described snap ring is arranged between lining 13 and card drill sleeve 16.
The down-the-hole air hammer of the above, described in it, drill bit 17 directly contacts with described piston 11.
The down-the-hole air hammer of the above, described in it, drill bit 17 adopts spline joint 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, successively by the pore of check valve seat 4, the pore of distribution bar 5 arrives in the outer tracheae of distribution bar, now the front side pore 10 of distribution bar 5 lower ends is communicated with piston 11 pores, gases at high pressure enter front air chamber 12 by the inside groove of outer shell 14 again, at the interior gas expansion of front air chamber 12, promoting piston 11 moves upward, the front side pore 10 of distribution bar 5 lower ends and piston 11 pores, the inside groove of outer shell 14 and piston 11 seal gradually, when piston 11 separated with lining 13, the gas of front air chamber 20 is discharged impactor by drill bit 17 centre bores, participate in deslagging, piston 11 is because inertia continues to move upward, rear side pore 6 and the piston of distribution bar 5 seal gradually, rear gas chamber's 7 gases are compressed, when the pore of piston 11 and 8 connections of the middle side opening of distribution bar 5, gases at high pressure enter rear gas chamber's 7 expansion promotion pistons 11 and move downward, when moving to the rear side opening 6 of distribution bar 5, piston 11 departs from while coordinating, rear gas chamber's 7 gases enter in the internal layer air vent channel of distribution bar 5 by the rear side opening 6 of distribution bar 5, centre bore through piston 11, drill bit 17 centre bores are discharged impactor, participate in deslagging, when piston 11 moves to bottom drill hammer 17, the front side pore 10 of distribution bar 5 lower ends is communicated with the pore of piston 11, thereby piston is motion repeatedly as mentioned above, impactor is normally worked.
Claims (6)
1. a down-the-hole air hammer, comprise joint, non retern valve, check valve seat, distribution bar, outer shell, piston, lining, card drill sleeve and drill bit, it is characterized in that: described outer shell one end is fixedly connected with described joint, the other end is fixedly connected with described card drill sleeve, described distribution bar is located between joint described in outer shell inner chamber and described piston, one end of described distribution bar be inserted into piston the thicker one end of pore in, check valve seat is installed on the other end of described distribution bar, described check valve seat is provided with non retern valve, the able to turn on or off described joint of described non retern valve middle part pore, described piston is arranged in described outer shell inner chamber, thicker one end of pore of described piston, space between described distribution bar and the outer inside wall of cylinder forms rear gas chamber, in described outer shell, be also provided with the lining sealing, the thinner one end of pore and Nei Qie one end, the formed space of the outer inside wall of cylinder that described lining is arranged at piston are connected to card drill sleeve, thinner one end of pore of described piston, the space that the end of one end of the described outer inside wall of cylinder and described lining reserves forms front air chamber, described distribution bar is provided with distribution bar front-side holes, side opening after side opening and distribution bar in distribution bar, described distribution bar front-side holes can be communicated with described front air chamber, described piston is provided with the pore that after described distribution bar, side opening is communicated with described rear gas chamber, described drill bit is connected with card drill sleeve.
2. down-the-hole air hammer according to claim 1, is characterized in that, described check valve seat is arranged in the endoporus of described distribution bar and contacts with described joint.
3. down-the-hole air hammer according to claim 1, it is characterized in that, described distribution bar comprises distribution bar main body and outer tube, described outer tube is sleeved between distribution bar main body in thicker one end of pore that described distribution bar inserts piston outer and outer tube and distribution bar main body and is provided with air flue, described air flue is communicated with described joint middle part pore by distribution bar, and in described distribution bar front-side holes and distribution bar, side opening is all arranged on described outer tube.
4. down-the-hole air hammer according to claim 1, is characterized in that, is also provided with the snap ring for fixed drill bit in described outer shell, and described snap ring is arranged between lining and card drill sleeve.
5. down-the-hole air hammer according to claim 1, is characterized in that, described drill bit directly contacts with described piston.
6. down-the-hole air hammer according to claim 1, is characterized in that, described drill bit and described card drill sleeve adopt spline joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675119.XU CN203547522U (en) | 2013-10-29 | 2013-10-29 | Down-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675119.XU CN203547522U (en) | 2013-10-29 | 2013-10-29 | Down-hole hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547522U true CN203547522U (en) | 2014-04-16 |
Family
ID=50465651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320675119.XU Expired - Lifetime CN203547522U (en) | 2013-10-29 | 2013-10-29 | Down-hole hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547522U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033100A (en) * | 2014-05-22 | 2014-09-10 | 同济大学 | Major-diameter pneumatic downhole hammer 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 |
| CN108756730A (en) * | 2018-07-03 | 2018-11-06 | 苏州新锐合金工具股份有限公司 | A kind of down-the-hole top hammer |
| CN113638687A (en) * | 2021-09-01 | 2021-11-12 | 长沙黑金刚实业有限公司 | Cone impactor |
-
2013
- 2013-10-29 CN CN201320675119.XU patent/CN203547522U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033100A (en) * | 2014-05-22 | 2014-09-10 | 同济大学 | Major-diameter pneumatic downhole hammer 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 |
| CN108756730A (en) * | 2018-07-03 | 2018-11-06 | 苏州新锐合金工具股份有限公司 | A kind of down-the-hole top hammer |
| CN108756730B (en) * | 2018-07-03 | 2024-04-12 | 苏州新锐合金工具股份有限公司 | Down-the-hole top hammer |
| CN113638687A (en) * | 2021-09-01 | 2021-11-12 | 长沙黑金刚实业有限公司 | Cone impactor |
| CN113638687B (en) * | 2021-09-01 | 2024-04-26 | 长沙黑金刚实业有限公司 | Cone impactor |
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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: 20140416 |