CN203114165U - Cyclone band tail pipe high wind pressure down-hole hammer - Google Patents
Cyclone band tail pipe high wind pressure down-hole hammer Download PDFInfo
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- CN203114165U CN203114165U CN 201320109850 CN201320109850U CN203114165U CN 203114165 U CN203114165 U CN 203114165U CN 201320109850 CN201320109850 CN 201320109850 CN 201320109850 U CN201320109850 U CN 201320109850U CN 203114165 U CN203114165 U CN 203114165U
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- piston
- tail pipe
- hole
- inner cylinder
- drill bit
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Abstract
The utility model discloses a cyclone band tail pipe high wind pressure down-hole impactor. The cyclone band tail pipe high wind pressure down-hole impactor comprises a rear connector, a check valve, an air distribution rod, a piston, an inner cylinder, an outer sleeve, a clamping ring, a front connector and a drill bit, wherein the check valve is a one-way valve and provided with a valve seat and a spring, the piston is a long and thin piston with a hole path, the tail end of the piston is located in a center air hole of the piston and provided with a drill bit tail pipe, the air distribution rod and an air inlet seat located at the rear end of the check valve are of an integrated structure, and the inner cylinder is located outside the air distribution rod and the piston. In a process of piston motion, one end, matched with the air distribution rod, of the piston is always located in the inner cylinder, a cavity is formed between one portion of the piston and the outer sleeve, and the other portion of the piston is matched with the inner cylinder. Due to the fact that the air distribution rod and the check valve are integrated, the cyclone band tail pipe high wind pressure down-hole impactor is simple in structure, capable of achieving functions of positioning, vibration reduction and air charging, and stable and reliable in working. Contact portions between the piston and the inner cylinder are reduced, the inner cylinder is more wearable, and working pressure range of the impactor is wide.
Description
Technical field
The utility model relates to a kind of Pneumatic immpacting equipment, relates in particular to the high blast down-the-hole air hammer of a kind of whirlwind magnetic tape trailer pipe.
Background technology
The valveless down-the-hole air hammer is a kind of typical Pneumatic immpacting 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.
In general, 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 a kind of with the DHD series piston tail pipe formula valveless twin-tub structure down-the-hole air hammer of U.S. Ingersoll-rand company as representative.Big end drill hammer when its characteristics are the piston motion, piston small end and inner casing interact and carry out distribution and guiding, see shown in Figure 1, DHD series valveless impactor is made up of 17 parts, specifically comprises: back joint 1, rubber ring 2, non retern valve 3, spring 4, valve seat 5, steel washer 6, rubber ring 7, O type circle 8, distribution bar 9, inner casing 10, piston 11, outer tube 12, O type circle 13, snap ring 14, drill bit 15, front connector 16, tail pipe 17, O type circle 18.The back joint 1 that has the API screw thread is the parts that impactor is connected with drilling rod.Non retern valve 3 is to prevent that magmatic water from flowing into the one way valve of impactor and drilling rod.Non retern valve 3 is contained in the check valve seat 5.The check valve seat can also be introduced compressed air in the distribution bar 9, and check valve seat and 1 of the joint in back are provided with the vibration isolation rubber circle, and outer tube 12 is realized the distribution action of piston motion together with cylinder body 10, distribution bar 9, tail pipe 17, piston 11.The elongated shape piston that is provided with central duct and body surface groove is to be a part of mechanical movement kinetic energy with compressed-air actuated power conversion directly, and by it this kinetic energy is passed to drill bit 15 by the mode of colliding, so piston is a very crucial part.14 of snap rings for prevent that drill bit 16 from coming off to the open form snap ring.Front connector 16 is to drive the front connector that drill bit rotates and sliding.Piston 11 is nylon tail pipes that fitting piston carries out distribution.
Above-mentioned valveless twin-tub type down-the-hole air hammer has following disadvantages: 1, between valve seat and the back joint rubber ring is housed, when working, impactor self just can absorb certain energy, more outstanding is the aging distortion of rubber after impactor work a period of time, will produce and jump and seriously influence quality of fit between each parts, thereby reduced operating efficiency, and shortened the working life of impactor.2, inner casing is the part processing complexity of thin wall construction, the cost of manufacture height; Because it is so that consumable accessory is one of key point that influences impactor application life and stability.3, outer sleeve inner wall has dug a plurality of cannelures, has reduced the abrasion resistance of outer tube.4, more intake and exhaust road is arranged, thereby cause bigger atmospheric pressure lost.5, have more distribution duct on the piston, air flue turnover and distance are long, and the gas pressure loss is big, make it responsive to the heat treatment reaction, and stress is concentrated, and work is often because of technology and structural reason early damage.
Summary of the invention
The technical problems to be solved in the utility model provides the high blast down-the-hole air hammer of a kind of whirlwind magnetic tape trailer pipe, 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 and inner casing contact site reduce, and inner casing is more wear-resisting, and the impactor working pressure range is wide, can be in 5-30 kilograms per centimeter
2Work in the scope.
The purpose of this utility model is achieved in that
The high blast down-the-hole air hammer of a kind of whirlwind magnetic tape trailer pipe, it comprises the back joint, non retern valve, the distribution bar, piston, inner casing, outer tube, snap ring, front connector and drill bit, 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 end of piston is positioned at the piston centre porosity and is provided with the drill bit tail pipe, the drill bit tail pipe stretches in the bit central pore, the air inlet seat of described distribution bar and non retern valve rear end is structure as a whole, inner casing is positioned at the distribution bar, the outside of piston, in the piston motion process, piston and distribution bar abutting end are in interior cylinder interior all the time, form cavity between the part of piston and the outer tube, the piston remainder cooperates with inner casing, and bit central pore arrival end is provided with conical section and is used for the stop drill tail pipe.
The above-mentioned air inlet seat outside is provided with the cooperation supporting disk, cooperates supporting disk to match with inner casing.
Above-mentionedly be provided with rubber seal and an O RunddichtringO at back joint and outer tube fitting face; Be provided with the 2nd O RunddichtringO between snap ring and the outer tube.
The utility model has been obtained following technique effect: 1, distribution bar, inner casing trim designs are reasonable, and the big end of distribution bar is contained in the stepped hole of inner casing one end, and back joint directly is pressed in to constitute on the large end face of inner casing and distribution bar and is rigidly connected.Thereby jumping when having avoided the work of distribution bar, yet the high-precision cooperation of maintenance that can be permanent has guaranteed operating efficiency.2, the distribution bar is rational in infrastructure, and distribution bar and valve seat are integral structure, and the distribution bar dwindled diameter of axle ratio, is easy to processing, not yielding and fracture when work.Gas distribution channels is succinctly unobstructed, thereby has reduced the loss of energy.3, piston structure is reasonable, and at first, each one of piston does not have significant diameter difference and is provided with unique centre porosity, is conducive to the transmission of stress wave, and improved application life; The second, on the piston duct few, do not have turn back duct, no elongated hole, easy to process, the working (machining) efficiency height need not deep Hole.4, unobstructed, the no Zigzag type gas circuit of system's gas circuit system reasonable in design gas circuit improves pneumatic efficiency greatly, reduces 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 the work of " high frequency, high energy " in various rock stratum, improve operating efficiency (efficient has improved 20%～30% by contrast).6, the component number is less, and is for convenience detach.7, the impactor working pressure range extensively 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 prior art constructions schematic diagram;
Fig. 2 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 2, the high blast down-the-hole air hammer of a kind of whirlwind magnetic tape trailer pipe, it comprises back joint 1, non retern valve 3, distribution bar 5, piston 8, inner casing 6, outer tube 7, snap ring 9, front connector 11 and drill bit 13, described non retern valve is one way valve, it has valve seat and spring 4, described piston is the elongated shape piston that has the duct, the end of piston is positioned at piston centre porosity 25 and is provided with drill bit tail pipe 12, the drill bit tail pipe stretches in the bit central pore 27, the air inlet seat 14 of described distribution bar and non retern valve rear end is structure as a whole, inner casing is positioned at the distribution bar, the outside of piston, in the piston motion process, piston and distribution bar abutting end are in interior cylinder interior all the time, form cavity between the part of piston and the outer tube, the piston remainder cooperates with inner casing, and bit central pore arrival end is provided with conical section 28 and is used for the stop drill tail pipe.The described air inlet seat outside is provided with and cooperates supporting disk 15, cooperates supporting disk to match with inner casing.Be provided with rubber seal 16 and an O RunddichtringO 2 at back joint and outer tube fitting face; Be provided with the 2nd O RunddichtringO 10 between snap ring and the outer tube.
The back joint 1 that has the API screw thread is the parts that connect impactor and drilling rod.Non retern valve 3 is to prevent that magmatic water from flowing into the one way valve of impactor and drilling rod, and distribution bar 5 and air inlet seat are integrated, and except compressed air is introduced the cylinder body, also same cylinder body, piston are realized the distribution action of piston motion together.Piston 8 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 drill bit 13, piston 8 is all the time in inner casing 6 and 7 li motions of part outer tube.Drill bit tail pipe 12 plays the distribution effect with piston, snap ring 9 for prevent that drill bit 13 from coming off to the open form snap ring.Front connector 11 drives drill bit 13 and rotates and slip.High blast refers generally to 5-14 kilograms per centimeter in this is novel
2
Operating principle of the present utility model is as follows:
For starting impactor, must transfer impactor earlier.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 joint hollow duct, back 17 backs down non retern valve 3, arrives piston air supply chamber 21,22 through back joint macropore end gap seam 18, distribution bar outer passage 19, inner casing 6 outer walls with the circular passage 20 of outer tube 7 inwalls formation.Gases at high pressure are by air chamber 23 and the rear gas chamber 24 before the cylinder of entering that replaces here.
When return began, piston was in position shown in Figure 2, and air chamber 23 promoted the piston motion before the gases at high pressure in the annular chamber 20 entered through piston body surface air drain 21,22, through the piston body surface.In the motion of piston return, when circular passage 22 was closed, preceding air chamber 23 air inlets stopped, and the gases at high pressure in the forward air chamber of piston expand and continue to move upward, after piston impact end and tail pipe disengagement, preceding air chamber 23 gases are at the bottom of tail pipe centre bore 26, bit central hole 27 drain into the hole.When piston began the return motion, the gas P of back chamber 24 escaped at the bottom of the hole through piston centre porosity 25, tail pipe centre bore 26, bit central pore 27, and back pressure resistance suffered when making the piston motion 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 24; When the big end motion of piston to forming opening with the interior inside wall of cylinder, gases at high pressure circular passage 20, piston air supply chamber 21 enter rear gas chamber 24.Because the piston motional inertia, piston slides a segment distance, produces pressure up to the gases at high pressure that enter later stage chamber 24 and makes piston stop the return motion.
During the piston stroke motion, piston moves to the opening turn-off transient of the big 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 expands by gas and travels forward, after piston center hole and the disengaging of distribution bar lower end, rear gas chamber is through gas piston centre porosity 25, tail pipe centre bore 26, bit central pore 27.This moment, piston slap drill bit afterbody was finished stroke movement.When piston began stroke movement, the gas of preceding air chamber 23 continued at the bottom of tail pipe centre bore 26 and bit central hole 7 are discharged to the hole; When piston and tail pipe form when cooperating, the gas of preceding air chamber begins compression, and piston moves to connection arc groove 22 always, and gases at high pressure enter into preceding air chamber 23, have finished the distribution process.
Claims (3)
1. high blast down-the-hole air hammer of whirlwind magnetic tape trailer pipe, it comprises back joint (1), non retern valve (3), distribution bar (5), piston (8), inner casing (6), outer tube (7), snap ring (9), front connector (11) and drill bit (13), described non retern valve is one way valve, it has valve seat and spring (4), described piston is the elongated shape piston that has the duct, the end of piston is positioned at piston centre porosity (25) and is provided with drill bit tail pipe (12), the drill bit tail pipe stretches in the bit central pore (27), it is characterized in that: the air inlet seat (14) of described distribution bar and non retern valve rear end is structure as a whole, inner casing is positioned at the distribution bar, the outside of piston, in the piston motion process, piston and distribution bar abutting end are in interior cylinder interior all the time, form cavity between the part of piston and the outer tube, the piston remainder cooperates with inner casing, and bit central pore arrival end is provided with conical section (28) and is used for the stop drill tail pipe.
2. the high blast down-the-hole air hammer of whirlwind magnetic tape trailer pipe according to claim 1 is characterized in that: be provided with cooperation supporting disk (15) outside the described air inlet seat, cooperate supporting disk to match with inner casing.
3. the high blast down-the-hole air hammer of whirlwind magnetic tape trailer pipe according to claim 2 is characterized in that: be provided with rubber seal (16) and an O RunddichtringO (2) at back joint and outer tube fitting face; Be provided with the 2nd O RunddichtringO (10) between snap ring and the outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320109850 CN203114165U (en) | 2013-03-12 | 2013-03-12 | Cyclone band tail pipe high wind pressure down-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320109850 CN203114165U (en) | 2013-03-12 | 2013-03-12 | Cyclone band tail pipe high wind pressure down-hole hammer |
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| Publication Number | Publication Date |
|---|---|
| CN203114165U true CN203114165U (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320109850 Expired - Lifetime CN203114165U (en) | 2013-03-12 | 2013-03-12 | Cyclone band tail pipe high wind pressure down-hole hammer |
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Cited By (4)
| 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 |
| 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 |
| 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 |
| 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 |
-
2013
- 2013-03-12 CN CN 201320109850 patent/CN203114165U/en not_active Expired - Lifetime
Cited By (4)
| 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 |
| 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 |
| 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 |
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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: 20130807 |