CN85204565U - Pneumatic impacter of composite air orifice - Google Patents
Pneumatic impacter of composite air orifice Download PDFInfo
- Publication number
- CN85204565U CN85204565U CN 85204565 CN85204565U CN85204565U CN 85204565 U CN85204565 U CN 85204565U CN 85204565 CN85204565 CN 85204565 CN 85204565 U CN85204565 U CN 85204565U CN 85204565 U CN85204565 U CN 85204565U
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- CN
- China
- Prior art keywords
- hole
- utility
- piston
- model
- air
- 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.)
- Ceased
Links
- 239000002131 composite material Substances 0.000 title claims description 3
- 230000007774 longterm Effects 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000003116 impacting effect Effects 0.000 abstract 1
- 230000001914 calming effect Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 230000017105 transposition Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to the improvement of a down-the-hole pneumatic impactor, which belongs to a combined air-supply type down-the-hole pneumatic impactor. The utility model adopts a center exhaust cylinder, a short air cylinder, and a frontward air chamber of piston combination to supply the air. The utility model has the advantages that piston quality is large and a mass center is near to an impacting interface. The utility model has the advantages of high efficiency, simple structure, high reliability, and good deslagging effects. The double-ring high voltage is adopted for driving a valve piece to change directions. The wind pressure adapted by the utility model is from 5 to 24.5 kgf/cm+[2], and the range of the hole diameters of a drilling hole is from 90 to 230 mm.
Description
The invention belongs to a kind of novel down-the-hole pneumatic dth hammer
The down-the-hole pneumatic dth hammer is give a farfetched interpretation the bore operation instrument and the various open-air and supporting use of down-hole down-the-hole drill of rock.
Valve type center exhaust down-the-hole pneumatic dth hammer is arranged, and a class is to adopt an outer tube and a long cylinder to the cup air feed.(№ 3 for the United States Patent (USP) product that the JOY company of the U.S. produces, 225,841) and the United States Patent (USP) product produced of the Atlas COPCO company of Sweden (№ 3,599,730), be this class formation, this structure, the work area of piston is difficult for strengthening, and the collision mass of piston and bore bit is more on the low side than generally, is unfavorable for the utilization of energy.Another kind of is to adopt the central gas-supply pipe, but central gas-supply pipe and piston structure complexity, manufacture difficulty is big, as a patent (NO, 4,054,180) of in 1977 of the U.S., adopts this kind structure, arranges two row's inclined holes on piston, needs to realize distribution.
The objective of the invention is has the plenum system of valve type center exhaust pneumatic dth hammer to cup from the structure improvement, thereby improves the processing technology of piston, increases the work area and the collision mass ratio of piston, improves the transmission efficiency of stress wave energy.
The present invention compares with prior art, and main feature is, existing have a valve type band air-cylinder type center exhaust pneumatic dth hammer, and long cylinder (its cylinder length must greater than piston length) is arranged.The present invention adopts cylinder and the piston in combination air chamber air feed forward of losing heart, and promptly the front end at cylinder is drilled with inclined hole, and piston nose is milled with groove, and cylinder is short, good stability, piston handling ease.
Down-the-hole pneumatic dth hammer of the present invention, its distribution principle as shown in the drawing.Calm the anger through after joint 1 press off top 2 on the non retern valve, by the air inlet on the valve gap 3 11, (pressure is greater than 10kgf/cm for high blast for the cannelure 13(of cylinder 7 and outer tube 6
2) impactor, this cannelure is a groove), the air inlet 14 on the cylinder 7, the air drain 15 on the piston 8, air chamber 16 before arriving forces piston 8 backhauls.When suction stroke finishes, the waste gas in the preceding air chamber 16 is at the bottom of bit shank pipe 9 drains into the hole from the centre bore 18 of bore bit 10.After valve block 4 transpositions, the then air inlet on valve gap 3 11 of calming the anger, the pore 19 on the valve seat 5 directly enters rear gas chamber 20, promotes piston 8 stroke starts.Waste gas in the rear gas chamber 20 is then through piston 8 centre bores 21, and bore bit 10 centre bores 18 drain at the bottom of the hole.In the time of at the bottom of bore bit 10 is lifted from the hole, impactor quits work, the pore 12 on valve gap 3 of calming the anger, the cannelure 13 of cylinder 7 and outer tube 6, the air defense punching 22 on the cylinder 7 is by the centre bores 11 of piston 8, bore bit 10 centre bores 18, drain at the bottom of the hole, remove remaining rock dust.Centre bore 23 on the valve gap 3 makes the centre bore 24 of calming the anger by valve seat 5, centre bore 21 on the piston 8 and bore bit 10 centre bores 18, the row's of help rock dust.
This impactor is taked big displacement to valve block 4 strokes, the pressure of compressed air loss during with the 8 stroke works done of minimizing piston.Calming the anger by the dicyclo high pressure promotes valve block 4 transpositions, and promptly before valve block 4 transpositions, air inlet 11 on the valve gap 3 and air drain 17 dicyclo high pressure act on valve block 4, make valve block 4 transposition flexible movements, thereby can reduce the exhaust length of rear gas chamber 20 greatly.Increase ballistic work, improve frequency of impact, reducing calms the anger directly enters atmosphere.
This series down-the-hole pneumatic dth hammer, the adaptation wind pressure of work is 5～25kgf/cm
2But, hard and hard rock in the Drilling.Boring aperture scope is φ 90～230mm, can with the various open-air and supporting uses of down-hole down-the-hole drill.
Claims (2)
1, a kind of down-the-hole pneumatic dth hammer, promptly the down-the-hole pneumatic dth hammer of being made up of cylinder (7), piston (8), valve block (4) is characterized in that it being the composite air orifice pneumatic dth hammer that is made of the cylinder of losing heart, long-term job plug.
2, as the said down-the-hole pneumatic dth hammer of claim 1, it is characterized in that cylinder (7) by hollow, smooth cylinder and inclined hole constitute, and its length is less than piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85204565 CN85204565U (en) | 1985-10-26 | 1985-10-26 | Pneumatic impacter of composite air orifice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85204565 CN85204565U (en) | 1985-10-26 | 1985-10-26 | Pneumatic impacter of composite air orifice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85204565U true CN85204565U (en) | 1987-04-29 |
Family
ID=4799849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85204565 Ceased CN85204565U (en) | 1985-10-26 | 1985-10-26 | Pneumatic impacter of composite air orifice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85204565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012041084A1 (en) * | 2010-09-30 | 2012-04-05 | 湖南山河智能机械股份有限公司 | Combined down-the-hole hammer |
| CN106639867A (en) * | 2017-01-03 | 2017-05-10 | 西安众晟岩土工程有限公司 | Standing rock drill |
-
1985
- 1985-10-26 CN CN 85204565 patent/CN85204565U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012041084A1 (en) * | 2010-09-30 | 2012-04-05 | 湖南山河智能机械股份有限公司 | Combined down-the-hole hammer |
| CN106639867A (en) * | 2017-01-03 | 2017-05-10 | 西安众晟岩土工程有限公司 | Standing rock drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |