CN202673138U - Piston guide sleeve type valveless double-cylinder down-hole hammer - Google Patents
Piston guide sleeve type valveless double-cylinder down-hole hammer Download PDFInfo
- Publication number
- CN202673138U CN202673138U CN2012203567161U CN201220356716U CN202673138U CN 202673138 U CN202673138 U CN 202673138U CN 2012203567161 U CN2012203567161 U CN 2012203567161U CN 201220356716 U CN201220356716 U CN 201220356716U CN 202673138 U CN202673138 U CN 202673138U
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- cylinder body
- distribution bar
- valve
- 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
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000009826 distribution Methods 0.000 claims description 37
- 230000033001 locomotion Effects 0.000 claims description 19
- 230000000694 effects Effects 0.000 abstract description 4
- 238000013016 damping Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 27
- 238000005553 drilling Methods 0.000 description 7
- 239000011435 rock Substances 0.000 description 4
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 208000004141 microcephaly Diseases 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The utility model discloses a piston guide sleeve type valveless double-cylinder down-hole hammer which comprises a rear joint, a check valve, an air distributing rod, a piston, a cylinder body, a guide sleeve, a clamp ring, a drill bit body and a front joint, wherein the check valve is of a one-way valve and is provided with a valve seat and a spring, the piston is of an elongated piston with a pore passage, the air distributing rod and an air inlet seat at the rear end of the check valve are of an integrated structure, an inner cylinder is arranged inside the cylinder body and outside the air distributing rod and the piston, and in the moving process of the piston, the matched end of the piston and the air distributing rod is always inside the inner cylinder. The air distributing rod and the check valve are integrated, The piston guide sleeve type valveless double-cylinder down-hole hammer is simple in structure, can realize the functions of positioning, damping and intake, and is stable and reliable to work; and the piston has no radial hole type structure, the effect that compressed air reaches a front cavity and a rear cavity within shortest distances can be realized, and the efficiency of the hammer can be improved.
Description
Technical field
The utility model relates to a kind of pneumatic impact equipment, relates in particular to a kind of piston guide shell type valveless twin-tub type down-the-hole air hammer.
Background technology
The valveless down-the-hole air hammer is a kind of typical pneumatic impact equipment, and it is the drilling tool of down-the-hole drill, is the operating mechanism that rig is implemented boring.This equipment is mainly used in Drilling diameter 65-305mm, hole depth 60m driling explosion hole.The drilling efficiency of a down-the-hole drill depends on the performance of impactor to a great extent.
At present, the valveless down-the-hole air hammer that uses on the market is that a kind of Sweden Sandvik rice Shengong department is the Mission series piston-guide-sleeve-type valveless single-cylinder structure down-the-hole air hammer of representative, as shown in Figure 1: Mission series valve free impacter is comprised of 16 parts, is the parts that impactor is connected with drilling rod with the rear joint 1 of API screw thread.Non retern valve 2 is to prevent that magmatic water from flowing into the one way valve of impactor and drilling rod.Lateral pin 5 is connectors of distribution bar 8 and check valve seat 3, rear joint 1.The check valve seat can also be introduced compressed air in the distribution bar 8, realizes the distribution action of piston movement together with cylinder body 7, distribution bar 8, piston 9.The elongated shape piston that has central duct and other hole is a part that directly compressed air energy is converted to mechanical movement kinetic energy, and by it this kinetic energy is passed to drill bit 16 by the mode of colliding, so piston is a very crucial part.Cylinder body 7 is the be integrated cylinder body of structure of inside and outside cylinder.Collar 10 can prevent that piston from skidding off cylinder body when bit change 16 more.13 of snap rings for prevent that drill bit 16 from coming off to the open form snap ring.Fairlead 11 has been fairleads of distribution effect.Front connector 15 is to drive drill bit to rotate the front connector that reaches in upper slip.Bit body 16 is columnar drills, is the instrument that directly contacts brokenly rock with rock mass.Fitting face at rear joint and cylinder body is provided with the 4th O RunddichtringO 6; Fairlead and cylinder body fitting face are provided with the 2nd O RunddichtringO 12; Fitting face at snap ring and cylinder body is provided with the 3rd O RunddichtringO 14.
Above-mentioned single-cylinder down-hole impactor without valve has following disadvantages: 1, distribution bar, valve seat and rear joint are rigidly connected with the lateral pin mode, the early stage easily distortion of lateral pin even fracture; The hole requirement on machining accuracy of 2, joining with lateral pin high being difficult for guarantees, loading and unloading are inconvenient; 3, the distribution bar is longer, and has the larger injection well of area, adopts ralocatable mode work, the early fracture phenomenon easily occurs, reliability when reducing impactor work; 4, more intake and exhaust road is arranged, thereby cause larger atmospheric pressure lost; 5, have more distribution duct on the piston, air flue turnover and distance are long, and pressure loss is large, make it responsive to the heat treatment reaction, and stress is concentrated, and work is often because of technique and structural reason early damage.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of piston guide shell type valveless twin-tub type down-the-hole air hammer, and distribution bar and check valve seat are integrated, simple in structure, can realize locating, the function of vibration damping, air inlet, reliable and stable during work; Piston can realize that without cellular type structure radially Compressed Gas arrives respectively forward and backward air cavity by short line, has improved the efficient of impactor.
The purpose of this utility model is achieved in that
A kind of piston guide shell type valveless twin-tub type down-the-hole air hammer, it comprises rear joint, non retern valve, distribution bar, piston, cylinder body, fairlead, snap ring, bit body and front connector, described non retern valve is one way valve, it has valve seat and spring, described piston is the elongated shape piston that has the duct, the air inlet seat of described distribution bar and non retern valve rear end is structure as a whole, the outside that is positioned at distribution bar, piston in cylinder interior is provided with inner casing, in the piston movement process, piston and distribution bar abutting end are in interior cylinder interior all the time.
The air inlet seat outside of the above is provided with the cooperation supporting disk, cooperates supporting disk to match with inner casing, cooperates supporting disk and inner casing fitting face to be provided with an O RunddichtringO.
Upward be provided with the 2nd O RunddichtringO at fairlead and cylinder body fitting face; Between snap ring and cylinder body, be provided with the 3rd O RunddichtringO; Be provided with the 4th O RunddichtringO at rear joint and cylinder body fitting face.
The utility model has been obtained following technique effect:
1, distribution bar, inner casing trim designs are reasonable.The large end of distribution bar is contained in the stepped hole of inner casing one end, and rear joint directly is pressed in to consist of on the large end face of inner casing and distribution bar and is rigidly connected, thus jumping when having avoided the work of distribution bar, however the high-precision cooperation of maintenance that can be permanent has guaranteed operating efficiency.
2, the distribution bar is rational in infrastructure.Distribution bar and valve seat are the integral type structure, and the distribution bar dwindled diameter of axle ratio, are easy to processing, are difficult for deformation and fracture when work; Gas distribution channels is succinctly unobstructed, thereby has reduced the loss of energy.
3, piston structure is reasonable.At first, the boring number is few on the piston, diameter of axle variation is less, the stress in the time of transmitting more stably impactor work, and working life has improved; The second, on the piston duct few, without turn back the duct, without elongated hole, easy to process, working (machining) efficiency is high, need not deep Hole.
4, system's gas circuit is reasonable in design.System's gas circuit is unobstructed, without the Zigzag type gas circuit, greatly improve pneumatic efficiency, reduce atmospheric pressure lost.
5, impactor high efficiency.Impactor has reasonably been adjusted quality and the impulse stroke of piston, frequency of impact and the single-impact energy of impactor have been improved, thereby can realize in various rock stratum the work of " high frequency, high energy ", improve operating efficiency (efficient has improved 20% ~ 30% by contrast).
6, the impactor working pressure range is wide.Can be in 5-25 kilograms per centimeter
2Work in the scope.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of prior art;
Fig. 2 is schematic diagram of the present utility model.
The specific embodiment
As shown in Figure 2, a kind of piston guide shell type valveless twin-tub type down-the-hole air hammer, it comprises rear joint 1, non retern valve 2, distribution bar 8, piston 9, cylinder body 7, fairlead 11, snap ring 13, bit body 16 and front connector 15, described non retern valve is one way valve, it has valve seat 3 and spring 4, described piston is the elongated shape piston that has the duct, the air inlet seat 28 of described distribution bar and non retern valve rear end is structure as a whole, be positioned at the distribution bar in cylinder interior, the outside of piston is provided with inner casing 29, in the piston movement process, piston and distribution bar abutting end are in interior cylinder interior all the time.
Preferably, the described air inlet seat outside is provided with and cooperates supporting disk 26, cooperates supporting disk to match with inner casing, cooperates supporting disk and inner casing fitting face to be provided with an O RunddichtringO 27.Be provided with the 2nd O RunddichtringO 12 at fairlead and cylinder body fitting face; Between snap ring and cylinder body, be provided with the 3rd O RunddichtringO 14; Be provided with the 4th O RunddichtringO 6 at rear joint and cylinder body fitting face.
The utility model is the parts that connect impactor and drilling rod with the rear joint 1 of API screw thread.Non retern valve 2 is to prevent that magmatic water from flowing into the one way valve of impactor and drilling rod, and distribution bar 8 and air inlet seat 28 are integrated, and except compressed air is introduced the cylinder body, also same cylinder body, piston are realized the distribution action of piston movement together.Distribution bar 9 is for having the elongated shape piston in duct, it is that direct power conversion with Compressed Gas is a part of mechanical movement kinetic energy, and by it the mode of this kinetic energy by collision being passed to bit body 16, piston 9 is all the time in inner casing 29 and 7 li motions of cylinder body.Fairlead 11 is the fairleads that play the distribution effect with piston, snap ring 13 for prevent that bit body 16 from coming off to the open form snap ring.Front connector 15 is used for driving bit body 16 and rotates and slip.
Operating principle of the present utility model is as follows:
For starting impactor, must transfer first impactor.When drill bit contacts with rock and jack-up piston when being in position shown in Figure 2, start preparation and namely come to an end.
Gases at high pressure P by introduce in rear joint hollow duct 17 backs down non retern valve 2, forms annular chamber 19 to piston body surface air supply chamber 20 through distribution bar side passage 18, outer tube inboard with the inner casing outside.Gases at high pressure are by air chamber 21 and the rear gas chamber 22 before the cylinder of entering that replaces here.
When return began, piston was in position shown in Figure 2, and the gases at high pressure in the annular chamber 19 enter front air chamber 21 pushing pistons motion through piston body surface air drain 20, process piston body surface.In the motion of piston return, when circular passage 25 was closed, front air chamber 21 air inlets stopped, and the gases at high pressure in the forward air chamber of piston expand and continue to move upward, and behind the front end and fairlead disengagement of piston, front air chamber 21 gases are at the bottom of bit central hole 24 drains into the hole.When piston began the return motion, the gas P of rear chamber 22 escaped at the bottom of the hole through piston centre porosity 23, bit central pore 24, and back pressure resistance suffered when making piston movement is very little; When distribution bar microcephaly began to enter the cooperation of piston formation, the return motion of piston was compressed the gas of rear gas chamber 22; When the large end motion of piston to forming opening with the interior inside wall of cylinder, gases at high pressure enter rear gas chamber 22 through annular chamber 19, piston air supply chamber 20.Because piston movement inertia, piston slides a segment distance, makes piston stop the return motion until enter the gases at high pressure generation pressure of rear chamber 22.
During the piston stroke motion, piston moves to the opening turn-off transient of the large end of piston and the formation of the interior inside wall of cylinder under the promotion of gases at high pressure, the passage that gases at high pressure enter rear gas chamber is blocked, piston travels forward by gas expansion, after piston center hole and distribution bar lower end break away from, rear gas chamber's gas through 23,24 drain into the hole at the bottom of.This moment, the Piston knocking bit afterbody was finished stroke movement.When piston began stroke movement, the gas of front air chamber 21 continued at the bottom of fairlead and bit central hole 24 are discharged to the hole; When piston nose entered fairlead, the gas of front air chamber began compression, and piston moves to always connects arc groove 25, and gases at high pressure enter into front air cavity 21, have finished the distribution process.
Claims (3)
1. piston guide shell type valveless twin-tub type down-the-hole air hammer, it comprises rear joint (1), non retern valve (2), distribution bar (8), piston (9), cylinder body (7), fairlead (11), snap ring (13), bit body (16) and front connector (15), described non retern valve is one way valve, it has valve seat (3) and spring (4), described piston is the elongated shape piston that has the duct, it is characterized in that: the air inlet seat (28) of described distribution bar and non retern valve rear end is structure as a whole, be positioned at the distribution bar in cylinder interior, the outside of piston is provided with inner casing (29), in the piston movement process, piston and distribution bar abutting end are in interior cylinder interior all the time.
2. piston guide shell type valveless down-the-hole air hammer according to claim 1, it is characterized in that: the described air inlet seat outside is provided with and cooperates supporting disk (26), cooperate supporting disk to match with inner casing, cooperate supporting disk and inner casing fitting face to be provided with an O RunddichtringO (27).
3. piston guide shell type valveless down-the-hole air hammer according to claim 2 is characterized in that: be provided with the 2nd O RunddichtringO (12) at fairlead and cylinder body fitting face; Between snap ring and cylinder body, be provided with the 3rd O RunddichtringO (14); Be provided with the 4th O RunddichtringO (6) at rear joint and cylinder body fitting face.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203567161U CN202673138U (en) | 2012-07-23 | 2012-07-23 | Piston guide sleeve type valveless double-cylinder down-hole hammer |
| KR2020130000478U KR20130001262U (en) | 2012-07-23 | 2013-01-18 | - Piston guide sleeved valveless twin cylinder type down-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203567161U CN202673138U (en) | 2012-07-23 | 2012-07-23 | Piston guide sleeve type valveless double-cylinder down-hole hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673138U true CN202673138U (en) | 2013-01-16 |
Family
ID=47494049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203567161U Expired - Lifetime CN202673138U (en) | 2012-07-23 | 2012-07-23 | Piston guide sleeve type valveless double-cylinder down-hole hammer |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20130001262U (en) |
| CN (1) | CN202673138U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174379A (en) * | 2013-03-12 | 2013-06-26 | 宜昌市五环钻机具有限责任公司 | Cyclone high wind pressure down-hole hammer with tail pipe |
| CN103174378A (en) * | 2013-03-12 | 2013-06-26 | 宜昌市五环钻机具有限责任公司 | Middle-low air pressure down-hole hammer |
| CN103277043A (en) * | 2013-05-17 | 2013-09-04 | 宜昌市五环钻机具有限责任公司 | Efficient medium-low-pressure down-hole hammer |
| CN103306599A (en) * | 2013-06-28 | 2013-09-18 | 宜昌市五环钻机具有限责任公司 | Piston with guidance port and down-hole hammer prepared thereby |
| CN111852324A (en) * | 2020-07-28 | 2020-10-30 | 浙江开山钎具有限公司 | High wind pressure down-the-hole impacter |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316855B (en) * | 2017-12-28 | 2019-06-25 | 重庆大学 | A kind of rotary valve type hydraulic percussion device |
| CN110181029A (en) * | 2019-06-28 | 2019-08-30 | 成都工合科技有限公司 | A kind of two-cylinder type pneumatic hammer and its application method |
| CN114622824B (en) * | 2022-02-17 | 2024-06-04 | 西南石油大学 | Air drilling bit with impact function |
-
2012
- 2012-07-23 CN CN2012203567161U patent/CN202673138U/en not_active Expired - Lifetime
-
2013
- 2013-01-18 KR KR2020130000478U patent/KR20130001262U/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174379A (en) * | 2013-03-12 | 2013-06-26 | 宜昌市五环钻机具有限责任公司 | Cyclone high wind pressure down-hole hammer with tail pipe |
| CN103174378A (en) * | 2013-03-12 | 2013-06-26 | 宜昌市五环钻机具有限责任公司 | Middle-low air pressure down-hole hammer |
| CN103277043A (en) * | 2013-05-17 | 2013-09-04 | 宜昌市五环钻机具有限责任公司 | Efficient medium-low-pressure down-hole hammer |
| CN103306599A (en) * | 2013-06-28 | 2013-09-18 | 宜昌市五环钻机具有限责任公司 | Piston with guidance port and down-hole hammer prepared thereby |
| CN111852324A (en) * | 2020-07-28 | 2020-10-30 | 浙江开山钎具有限公司 | High wind pressure down-the-hole impacter |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130001262U (en) | 2013-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202673138U (en) | Piston guide sleeve type valveless double-cylinder down-hole hammer | |
| CN103174379A (en) | Cyclone high wind pressure down-hole hammer with tail pipe | |
| CN203321313U (en) | Down-hole hammer | |
| CN104265154A (en) | Novel down-the-hole impactor | |
| CN201301664Y (en) | Down-the-hole hammer | |
| CN104265159B (en) | A kind of down-the-hole air hammer | |
| CN204851057U (en) | Hyperbar is soon towards down --hole churn drilling tools | |
| CN105156025B (en) | A kind of hyperbar rushes down-hole percussion drill tool soon | |
| CN101575941A (en) | Valveless single-cylinder low or middle wind pressure downhole air hammer | |
| CN203547523U (en) | Down-hole hammer for high-air-pressure drilling machine drilling work | |
| CN201502318U (en) | High air-pressure down-the-hole hammer | |
| CN209244496U (en) | With specific length than, the piston of weight ratio and drill bit supporting structure and impactor | |
| CN103277043A (en) | Efficient medium-low-pressure down-hole hammer | |
| CN208106310U (en) | A kind of impactor of bicavate outer sleeve structure | |
| CN204371095U (en) | A kind of efficient down-hole hammer | |
| CN203114165U (en) | Cyclone band tail pipe high wind pressure down-hole hammer | |
| CN103573182A (en) | Piston guide sleeve type valveless double-cylinder down-hole hammer | |
| CN203499552U (en) | High-wind-pressure impactor | |
| CN203547522U (en) | Down-hole hammer | |
| CN105156024B (en) | One kind rushes wear-resistant high life down-the-hole churn drilling tools soon | |
| CN201934016U (en) | Down-the-hole hammer | |
| CN203603758U (en) | High-frequency impactor | |
| CN204060508U (en) | A kind of down-the-hole air hammer | |
| CN204060501U (en) | A kind of Novel downhole air hammer | |
| CN201460718U (en) | Valveless single-cylinder type middle-low air pressure downhole 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: 20130116 |