CN203603758U - High-frequency impactor - Google Patents
High-frequency impactor Download PDFInfo
- Publication number
- CN203603758U CN203603758U CN201320752295.9U CN201320752295U CN203603758U CN 203603758 U CN203603758 U CN 203603758U CN 201320752295 U CN201320752295 U CN 201320752295U CN 203603758 U CN203603758 U CN 203603758U
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- Prior art keywords
- piston
- communicated
- air
- distribution seat
- pore
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- Expired - Lifetime
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- 239000011148 porous material Substances 0.000 claims description 29
- 238000009527 percussion Methods 0.000 claims description 9
- 238000013022 venting Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003129 oil well Substances 0.000 abstract description 2
- 239000011435 rock Substances 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 23
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 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
- 238000005516 engineering process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
A high-frequency impactor comprises a connector, a check valve, an air distribution base, an outer cylinder, a piston, a drive chuck and a drill bit. An air ventilation cavity is formed between the outer wall of an inner cylinder and the inner wall of the outer cylinder, the upper end of the air distribution base is connected with the check valve, the lower end of the air distribution base is installed in an air vent of the piston, the middle of the air distribution base is arranged inside the inner cylinder and seals the inner cylinder, the middle of the lower end of the air distribution base is provided with an air distribution base air vent communicated with an air distribution base middle air vent, a groove is formed in the upper side of the piston to form a rear air chamber with the corresponding wall of the inner cylinder, the rear air chamber is communicated with the air vent of the piston through an air vent, the upper side and the lower side of the corresponding wall of the inner cylinder are both provided with air vents communicated with the upper side of the air distribution base and the rear air chamber, a groove is formed in the lower side of the piston to form a front air chamber with the corresponding wall of the outer cylinder and the top of a bush, and an air duct is formed between the outer wall of the lower side of the piston and the outer cylinder to be communicated with the front air chamber. The high-frequency impactor has the advantages of being simple in structure, long in service life, high in transmission torque, reliable in connection, capable of reducing the potential hazards of drill bit dropping and the like, is applicable to rock drilling tools used in the fields such as underground mines, water and electricity, roads, railways, water wells, oil wells and terrestrial heat.
Description
Technical field
The utility model relates to a kind of high-frequency percussion device.
Background technology
Along with the develop rapidly of the development of the national economy, in the process that pulls the national economic development for infrastructure, 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 the mode by inner casing is set in outer shell to carry out distribution.The internal diameter size of the outer shell using because of various down-the-hole air hammers is consistent, increase the diameter that inner casing has 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 larger, and the possibility of piston fracture is less.Further, to be that employing center is logical pass through excellent capitate structure to old-fashioned piston of down-the-hole hammer, 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 high-frequency percussion device of hidden danger of drill bit.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of high-frequency percussion device, comprise joint, outer shell, non retern valve, distribution seat, inner casing, have the piston that connects pore along axis, 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 non retern valve, distribution seat, inner casing, piston and lining are all located in the inner chamber of outer shell, the fixing described piston of described lining and drill bit, described card drill sleeve is fixed described lining, between described inner casing outer wall and the outer inside wall of cylinder, be provided with venting cavity, the upper end of described distribution seat is connected with described non retern valve, lower end is arranged in the pore of described piston, the middle part of described distribution seat is arranged in described inner casing and seals described inner casing, middle part, described distribution seat lower end is provided with the distribution seat pore being communicated with distribution seat middle part pore, described piston upside is provided with between groove and described interior casing wall and forms rear gas chamber near distribution seat end, described rear gas chamber is communicated with described piston pore by pore, described interior casing wall upper, lower both sides are equipped with pore and are communicated with distribution seat upside and rear gas chamber, the downside of described piston is provided with the front air chamber of formation between groove and described outer casing wall and described lining top, between described piston underside outer wall and described outer shell, being provided with airway is communicated with front air chamber, when described piston moves downward, described rear gas chamber is communicated with front air chamber, described front air chamber gas expansion promotes described piston and up moves, rear gas chamber and front air chamber are sealed gradually with distribution seat pore to be communicated with.
In described outer shell, be provided with snap ring and back-up ring, described snap ring is arranged between described lining and clamp cover, and described back-up ring arranges between lining and outer casing wall.
Described drill bit contacts with described piston.
Described drill bit and described card drill sleeve adopt spline joint.
Owing to adopting such scheme, synchronously (chamber, so-called front and back is exactly to be synchronously full of when ante-chamber gas to adopt chamber, front and back, gas expansion promotes piston and up moves, when moving to back cavity and starting air inlet, ante-chamber starts venting simultaneously, in like manner move back and forth), reduce the resistance of piston, cancel traditional gas distribution structure, structure is simpler, assemble more convenient, the outer shell life-span is lengthened, the possibility of fracture reduces, strengthen the quality of piston, make down-the-hole air hammer impact energy larger, efficiency is higher, solve piston gas shutoff, frequency of impact is crossed the problems such as slow, employing snap ring connects, drill bit in the time that making, is not fallen down in work, adopt spline joint, transmitting torque effectively.
In sum, the utlity model has simple in structure, long service life, transmitting torque is strong, it is reliable to connect, and reduces 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---outer shell, 3---non retern valve, 4---adjust pad, 5---pressure-bearing pad, 6---spring, 7---inner casing, 8-distribution seat, 9---piston, 10---back-up ring, 11---lining, 12---snap ring, 13---clamp cover, 14---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 high-frequency percussion device, comprise the joint 1 that has joint pore, be pressed with the non retern valve 3 of rubber, inside has the large distribution seat 8 small in ends of pore and middle part, have the outer shell 2 of the hollow cavity of perforation along axis, have the piston 9 that connects pore along axis, card drill sleeve 13, drill bit 14, described outer shell 2 one end are fixedly connected with described joint 1, the other end is fixedly connected with described card drill sleeve 13, described distribution seat 8 is located in the inner chamber of outer shell 2, described non retern valve 3 is located in the inner chamber of joint 1 and between joint and distribution seat 8, described piston 9 is arranged in described outer shell 2 inner chambers, one end of described distribution seat 8 is inserted in piston 9 upper end pores, another is connected with the bottom of non retern valve 3, the middle part of described distribution seat 8 is arranged in described inner casing 7 and seals described inner casing 7 and makes inner casing 7 be divided into upper and lower two parts, lining 11 is arranged on outer shell 2 inwalls and fixing described piston 9 and drill bit 14, described card drill sleeve 13 is by fixing spacing described lining 11, between described lining and clamp cover, arrange when snap ring 12 moves to piston 9 and drill bit 14, carry out spacing, fixing and the sealing by back-up ring 10 between lining 11 and outer shell 2 walls, between inner casing 7 outer walls and outer shell 2 inwalls, be provided with venting cavity 15, the outer wall of the downside of described distribution seat 8 is provided with the distribution seat pore 16 being communicated with distribution seat 8 middle part pores, described piston 9 upsides are provided with between groove and described interior casing wall and form rear gas chamber 17 near distribution seat end, described rear gas chamber 17 is communicated with described piston 9 pores by pore, described inner casing 7 walls upper, lower both sides are equipped with pore and are communicated with venting cavity 15, side-inlet on distribution seat is communicated with rear gas chamber 17, the downside of described piston 9 is provided with the front air chamber 18 of formation between groove and described outer casing wall and described lining top, between described piston 9 downside outer walls and described outer shell, being provided with airway is communicated with front air chamber 17, when described piston 9 moves downward, described rear gas chamber 17 is communicated with front air chamber 18, described front air chamber 18 gas expansions promote described piston 9 and up move, rear gas chamber 17 and front air chamber 18 are disconnected, be communicated with distribution seat pore 16.
Above-mentioned down-the-hole air hammer, described drill bit 14 directly directly contacts with described piston 9.
Above-mentioned down-the-hole air hammer, described drill bit 14 adopts spline joint with described card drill sleeve 13.
Operating principle of the present utility model is as follows:
Gases at high pressure enter along joint 1 joint pore, push non retern valve 3 open, successively by the inlet channel forming between distribution seat and joint inner chamber, the pore of inner casing 7, venting cavity 15, rear gas chamber 17 enters front air chamber 18, gases at high pressure promote piston 9 in the interior expansion of front air chamber 18 and move upward, make rear gas chamber 17 seal gradually with distribution seat pore 16 and be communicated with front air chamber 18, make the gas of front air chamber 18 discharge impactor by drill bit 14 centre bores, participate in deslagging, piston 9 is because inertia continues to move upward, make the gas in the movable chamber 19 of piston 9 end compression pistons, making gases at high pressure expansion promote piston 9 moves downward, so circulation.
Claims (4)
1. a high-frequency percussion device, comprise joint, outer shell, non retern valve, distribution seat, inner casing, have the piston that connects pore along axis, 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 non retern valve, distribution seat, inner casing, piston and lining are all located in the inner chamber of outer shell, the fixing described piston of described lining and drill bit, described card drill sleeve is fixed described lining, it is characterized in that: between described inner casing outer wall and the outer inside wall of cylinder, be provided with venting cavity, the upper end of described distribution seat is connected with described non retern valve, lower end is arranged in the pore of described piston, the middle part of described distribution seat is arranged in described inner casing and seals described inner casing, middle part, described distribution seat lower end is provided with the distribution seat pore being communicated with distribution seat middle part pore, described piston upside is provided with between groove and described interior casing wall and forms rear gas chamber near distribution seat end, described rear gas chamber is communicated with described piston pore by pore, described interior casing wall upper, lower both sides are equipped with pore and are communicated with distribution seat upside and rear gas chamber, the downside of described piston is provided with the front air chamber of formation between groove and described outer casing wall and described lining top, between described piston underside outer wall and described outer shell, being provided with airway is communicated with front air chamber, when described piston moves downward, described rear gas chamber is communicated with front air chamber, described front air chamber gas expansion promotes described piston and up moves, rear gas chamber and front air chamber are sealed gradually with distribution seat pore to be communicated with.
2. high-frequency percussion device according to claim 1, is characterized in that, is provided with snap ring and back-up ring in described outer shell, and described snap ring is arranged between described lining and clamp cover, and described back-up ring arranges between lining and outer casing wall.
3. high-frequency percussion device according to claim 1, is characterized in that, described drill bit contacts with described piston.
4. high-frequency percussion device 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 |
|---|---|---|---|
| CN201320752295.9U CN203603758U (en) | 2013-11-25 | 2013-11-25 | High-frequency impactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320752295.9U CN203603758U (en) | 2013-11-25 | 2013-11-25 | High-frequency impactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603758U true CN203603758U (en) | 2014-05-21 |
Family
ID=50716435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320752295.9U Expired - Lifetime CN203603758U (en) | 2013-11-25 | 2013-11-25 | High-frequency impactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203603758U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178845A (en) * | 2015-09-24 | 2015-12-23 | 中国石油天然气股份有限公司 | Hydraulic shock generation device |
| CN106285457A (en) * | 2016-11-01 | 2017-01-04 | 山东中瑞工程机械有限公司 | The air quantity of down-the-hole air hammer is automatically adjusted distributor |
| CN111927306A (en) * | 2020-09-03 | 2020-11-13 | 长沙天和钻具机械有限公司 | Large-aperture impactor with adjustable air inflow |
| CN112122685A (en) * | 2020-09-21 | 2020-12-25 | 刘桥兴 | Dismantling shear with bidirectional shear force structure and implementation method thereof |
-
2013
- 2013-11-25 CN CN201320752295.9U patent/CN203603758U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178845A (en) * | 2015-09-24 | 2015-12-23 | 中国石油天然气股份有限公司 | Hydraulic shock generation device |
| CN106285457A (en) * | 2016-11-01 | 2017-01-04 | 山东中瑞工程机械有限公司 | The air quantity of down-the-hole air hammer is automatically adjusted distributor |
| CN111927306A (en) * | 2020-09-03 | 2020-11-13 | 长沙天和钻具机械有限公司 | Large-aperture impactor with adjustable air inflow |
| CN111927306B (en) * | 2020-09-03 | 2022-06-28 | 长沙天和钻具机械有限公司 | Large-aperture impactor with adjustable air inflow |
| CN112122685A (en) * | 2020-09-21 | 2020-12-25 | 刘桥兴 | Dismantling shear with bidirectional shear force structure and implementation method thereof |
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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: 20140521 |