KR880004075Y1 - Hammer bit for excavator - Google Patents
Hammer bit for excavator Download PDFInfo
- Publication number
- KR880004075Y1 KR880004075Y1 KR2019840014532U KR840014532U KR880004075Y1 KR 880004075 Y1 KR880004075 Y1 KR 880004075Y1 KR 2019840014532 U KR2019840014532 U KR 2019840014532U KR 840014532 U KR840014532 U KR 840014532U KR 880004075 Y1 KR880004075 Y1 KR 880004075Y1
- Authority
- KR
- South Korea
- Prior art keywords
- hammer bit
- bit
- ball
- excavator
- present
- Prior art date
Links
- 238000007373 indentation Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
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
내용 없음.No content.
Description
제1도는 본 고안의 전체 사시도.1 is an overall perspective view of the present invention.
제2도는 본 고안의 요부 확대 단면도.Figure 2 is an enlarged cross-sectional view of the main part of the present invention.
제3도는 제2도의 "A-A"선 단면도.3 is a sectional view taken along the line "A-A" in FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 비트 2, 2' : 압입공1: bit 2, 2 ': press-fit hole
3 : 완충판 4, 4' : 볼팁3: buffer plate 4, 4 ': ball tip
5, 5' : 요돌조5, 5 ': Yodolzo
본 고안은 지하수 개발, 광산 및 석산의 대단위 발파용은 물론 지하철 공사의 파일펀 고용등에 널리 활용되는 굴착용 해머 비트(HAMMER BIT)에 있어서, 볼팁이 타입되는 압입공 내주면에 깊이 방향으로 요돌조를 형성하고 저면에 알루미늄이나 등같은 완충성을 가지는 통상의 완충을 내입시켜 볼팁을 압입공 내로 타입되게 함으로써 볼팁이 비트에 견고하게 압지될 수 있게 한 굴착용 해머 비트에 관한 것이다.The present invention is designed for drilling hammer bit (HAMMER BIT) which is widely used in groundwater development, large-scale blasting of mines and quarries, as well as the pile-fun employment of subway constructions. The present invention relates to a drilling hammer bit that is formed and incorporates a conventional buffer having a cushioning property such as aluminum or the like on the bottom thereof so that the ball tip is typed into the indentation hole so that the ball tip can be firmly pressed against the bit.
종래의 해머 비트는 비트의 저면에 단순하게 구멍을 뚫고, 이에 볼팁을 타입한 것이기 때문에 해머가 강하게 작용할때 충격이 극심하여 볼팁이 파손되는 결점이 있었고, 또한 볼팁을 구멍에 아무리 정밀하게 타입한다고해도 타압충격에 의하여 정확한 위치에서 일측으로 편중되는 경우가 허다하여 굴착 작업중에 충격등으로 볼팁이 빠지게 되므로 작업능률이 저하됨은 물론 보수작업에 많은 시간이 소요되었던 결점이 있었다.The conventional hammer bit simply drills a hole in the bottom of the bit and is a ball tip type. Therefore, when the hammer is strongly applied, the hammer bit has a defect in that the ball tip is broken and even if the ball tip is precisely typed into the hole, Due to overpressure shock, it is often biased to one side at the correct position, and the ball tip falls out due to the impact during the excavation work, so that the work efficiency is deteriorated and the repair work takes a long time.
본 고안은 굴착용 해머 비트에 관하여 상기한 바와 같은 종래의 결점을 제거할 목적으로 안출된 것으로서 비트의 압입공 내주면에 깊이 방향으로 요돌조를 형성시키고, 저면에 완충성을 부여한 완충판을 내입한 후 볼팁을 타압하여 견고한 압지력과 완충력을 갖도록 한 것이다.The present invention has been made for the purpose of eliminating the conventional defects as described above with respect to the drilling hammer bit as a concave protrusion formed in the inner peripheral surface of the indentation hole of the bit in the depth direction, after inserting the buffer plate imparting cushioning to the bottom The ball tip is pressed down to have a firm grip and cushioning force.
이하 본 고안의 요지를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the gist of the present invention will be described in detail with reference to the accompanying drawings.
본 고안은 비트(1)의 압입공(2)(2')에 동이나 알루미늄제의 완충판(3)을 내입시켜 다수의 볼팁을(4)(4')을 타입되게 한 공지의 해머 비트에 있어서, 압입공(2)(2')의 내주면에 깊이 방향으로 수개의 요돌조(5)(5')를 형성하여 볼팁(4)(4')을 타입 고정되게 한 것이다.The present invention incorporates a buffer plate 3 made of copper or aluminum into the indentation holes 2 and 2 'of the bit 1 to a known hammer bit in which a number of ball tips 4 and 4' are typed. In this case, several concave protrusions 5 and 5 'are formed on the inner circumferential surface of the indentation holes 2 and 2' in the depth direction to fix the ball tips 4 and 4 '.
이와 같이 구성된 본 고안은 압입공(2)(2')내로 볼팁(4)(4')을 타입 고정하는 것으로, 초경질 합금으로 된 볼팁(4)(4')의 곡면을 타압하게 되면, 깊이 방향의 요돌조(5)(5')의 선단이 붕괴되면서 파편들이 요부내로 밀려들어가고 볼팁(4)(4')의 외주면은 요돌조(5)(5')의 돌부와 요부에 교호로 압지되어 접면상태의 돌부 및 밀폐상태의 기압이 높은 요부에 의하여 견고하고 고정되는 것이다.According to the present invention, the ball tips 4 and 4 'are fixed in the indentation holes 2 and 2', and when the curved surface of the ball tips 4 and 4 'made of a hard alloy is pressed, Debris is pushed into the recess as the tip of the depth of the protrusion (5) (5 ') in the depth direction collapses, and the outer circumferential surface of the ball tip (4) (4') alternates with the protrusion and the recess of the protrusion (5) (5 '). It is squeezed and firmly fixed by the recessed part of the state of contact and the recessed part of the air pressure of the state of being sealed.
그리고 굴착 작업중에 충격은 내부에 완충판(3)이 받쳐지기 때문에 일측으로 몰리는 약간의 편중력은 완충판(3)에서 흡수되어 볼팁(4)(4')이 파손되지 않을 뿐만 아니라 빠지지 않는 것이다.And during the excavation work, the impact is supported by the buffer plate 3 therein, so that a slight biasing force driven to one side is absorbed by the buffer plate 3 so that the ball tips 4 and 4 'are not broken and do not fall out.
이상과 같이 본 고안은 해머 비트의 압입공(3) 내주면의 요돌조(5)(5')에 의하여 볼팁(4)(4')을 견고하게 압지함은 물론 완충판(3)이 충격을 흡수함으로써 볼팁(4)(4')의 파손을 방지하여 사용 수명이 연장되고, 또한 작업능률이 향상될 수 있는 효과를 제공되게 한 것이다.As described above, the present invention not only firmly presses the ball tips 4 and 4 'by the protrusions 5 and 5' of the inner circumferential surface of the indentation hole 3 of the hammer bit, but also the shock absorbing plate 3 absorbs the impact. This prevents the breakage of the ball tips 4 and 4 ', thereby providing an effect of extending the service life and improving work efficiency.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019840014532U KR880004075Y1 (en) | 1984-12-31 | 1984-12-31 | Hammer bit for excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019840014532U KR880004075Y1 (en) | 1984-12-31 | 1984-12-31 | Hammer bit for excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR860008006U KR860008006U (en) | 1986-07-21 |
| KR880004075Y1 true KR880004075Y1 (en) | 1988-11-18 |
Family
ID=19239197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019840014532U KR880004075Y1 (en) | 1984-12-31 | 1984-12-31 | Hammer bit for excavator |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR880004075Y1 (en) |
-
1984
- 1984-12-31 KR KR2019840014532U patent/KR880004075Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR860008006U (en) | 1986-07-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19911115 Year of fee payment: 7 |
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| LAPS | Lapse due to unpaid annual fee |