KR200153430Y1 - Air hammer - Google Patents
Air hammer Download PDFInfo
- Publication number
- KR200153430Y1 KR200153430Y1 KR2019960040227U KR19960040227U KR200153430Y1 KR 200153430 Y1 KR200153430 Y1 KR 200153430Y1 KR 2019960040227 U KR2019960040227 U KR 2019960040227U KR 19960040227 U KR19960040227 U KR 19960040227U KR 200153430 Y1 KR200153430 Y1 KR 200153430Y1
- Authority
- KR
- South Korea
- Prior art keywords
- valve
- valve body
- drill bit
- adapter
- rubber packing
- Prior art date
Links
- 238000012856 packing Methods 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
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- 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
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- 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
- E21B1/00—Percussion drilling
- E21B1/12—Percussion drilling with a reciprocating impulse member
- E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
- E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure
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)
- Details Of Valves (AREA)
Abstract
본 발명은 공기해머에 관한 것으로, 드릴비트축(22)의 종방향통로(18)에 밸브시이트(30)와 밸브작동실(32)을 형성하여 밸브작동실(32)내에 스프링(38)으로 탄지되는 밸브동체(36)가 장설된다. 본 발명에 따라서, 밸브동체(35)는 그외경이 밸브작동실(32)의 내경에 가깝게 되어 밸브동체(36)가 밸브작동실(32)내에서 편심되지않고 안정되게 작동토록한다. 밸브동체(36)의 주면에는 다수의 세로홈(40)이 형성되어 밸브동체(36)의 개방시 압축공기 통과량이 증가하도록한다. 어덥터(16) 내측에는 드릴비트축(22)에 탄력적으로 접하는 탄성스커트(48)를 갖는 고무패킹(50)이 착설되어 이물질의 침투를 방지한다.The present invention relates to an air hammer, wherein the valve seat 30 and the valve operation chamber 32 are formed in the longitudinal passage 18 of the drill bit shaft 22 to the spring 38 in the valve operation chamber 32. A valve body 36 which is supported is installed. According to the present invention, the valve body 35 has an outer diameter close to the inner diameter of the valve operating chamber 32 so that the valve body 36 can operate stably without being eccentric in the valve operating chamber 32. A plurality of longitudinal grooves 40 are formed on the main surface of the valve body 36 to increase the amount of passage of compressed air when the valve body 36 is opened. Inside the adapter 16, a rubber packing 50 having an elastic skirt 48 elastically contacting the drill bit shaft 22 is installed to prevent foreign matter from penetrating.
Description
제1도는 본 고안의 부분 단면도.1 is a partial cross-sectional view of the present invention.
제2도는 제1도의 AA-BB 선부분단면의 확대도.Figure 2 is an enlarged view of the AA-BB line cross section of Figure 1.
제3도는 제1도의 CC-DD 선부분단면의 확대도.3 is an enlarged view of a cross section taken along line CC-DD of FIG. 1;
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 해머케이싱 14 : 피스톤10 hammer hammer 14 piston
16 : 어덥터 18 : 종방향통로16: adapter 18: longitudinal path
20 : 드릴비트 22 : 드릴비트축20: drill bit 22: drill bit shaft
30 : 밸브시이트 32 : 밸브작동실30: valve seat 32: valve operation chamber
36 : 밸브동체 38 : 스프링36: valve body 38: spring
40 : 세로홈 42 : 내주면40: vertical groove 42: inner circumference
48 : 탄성스커트 50 : 고무패킹48: elastic skirt 50: rubber packing
본 고안은 공기해머에 관한것으로, 특히 압력수상승을 방지하는 체크밸브가 안정되게 작동하고 드릴비트축과 해머케이싱의 하단에 결합된 어덥터사이의 환상 간극으로 이물질이 침투하는 것을 방지할 수 있도록 공기해머에 관한 것이다.The present invention relates to an air hammer, and in particular, the check valve to prevent the pressure rise to operate stably and to prevent the foreign matter from penetrating into the annular gap between the drill bit shaft and the adapter coupled to the bottom of the hammer casing It's about a hammer.
일반적으로, 공기해머는 해머케이싱의 하단에 결합된 어덥터를 통하여 드릴비트의 축이 삽입되고 드릴비트의 축상단에는 드릴비트를 공기압력으로 타격하는 피스톤이 장설되어 있다. 한편, 피스톤내의 종방향통로 또는 드릴비트축의 종방향 통로에는 압력수상승에 의한 역압이 가하여지는 경우 이를 차단하기 위한 체크밸브가 설치된다.In general, the air hammer is inserted into the shaft of the drill bit through an adapter coupled to the lower end of the hammer casing, and a piston for hitting the drill bit with air pressure is installed at the upper end of the drill bit. On the other hand, the longitudinal passage in the piston or the longitudinal passage of the drill bit shaft is provided with a check valve for blocking this when a reverse pressure is applied due to the pressure rise.
종래의 공기해머에 있어서는 체크밸브가 피스톤상부에 위치하여 작업중단시 드릴비트축과 어덥터내면사이로 드릴작업으로 생성된 돌가루, 흙 또는 압력수가 투입되어 드릴비트의 왕복운동에 장애를 주어 피스톤의 빠른 마모와 작동불능 상태로인한 경제적시간적 손해를 초래하였다. 본 고안에 있어서는 종래의 이러한 문제점을 해결한다.In the conventional air hammer, the check valve is located on the top of the piston, and when the work stops, stone, soil, or pressure water generated by the drilling work is inserted between the drill bit shaft and the inner surface of the piston, which interrupts the reciprocation of the drill bit. Economical due to wear and malfunction It caused time damage. The present invention solves these problems in the prior art.
본 고안의 목적은 압력수 상승을 방지하는 체크밸브가 안정되게 작동하여 공기해머의 작업을 방해하지 않는데 있다.The purpose of the present invention is to prevent the operation of the air hammer by operating the check valve to prevent the pressure water rise stable.
본 고안의 다른목적은 체크밸브의 개방시 풍부한 압축공기 통과량이 확보될 수 있도록 하는데 있다. 본 고안의 또 다른목적은 드릴비트축과 해머케이싱의 하단에 결합된 어덥터사이로 이물질이 침투하는 것을 방지하는데 있다.Another object of the present invention is to ensure abundant compressed air passage amount when opening the check valve. Another object of the present invention is to prevent foreign matter from penetrating between the drill bit shaft and the adapter coupled to the lower end of the hammer casing.
본 고안에 있어서, 공기해머는 해머케이싱내에 피스톤이 장설되고 하단에 내주면을 갖는 어덥터가 결합되어 이에 종방향통로를 갖는 드릴비트의 축이 삽입되며 드릴비트축의 종방향통로에는 상부에 밸브시이트와 밸브작동실을 가지고 밸브작동실내에 스프링으로 탄지되는 밸브동체가 장설된다.In the present invention, the air hammer is equipped with a piston installed in the hammer casing and an outer circumferential surface at the bottom thereof is coupled to the shaft of the drill bit having a longitudinal passage therein, and the valve seat and the valve at the top of the drill bit shaft in the longitudinal passage. A valve body mounted with a spring in the valve operating chamber is installed.
본 고안에 따라서, 밸브동체의 외경을 밸브작동실의 내경에 가깝게 하여 밸브동체가 밸브작동실 내에서 편심되지 않게 작동토록하고 밸브동체의 주면에는 다수의 세로홈을 형성하며, 어덥터내측에는 드릴비트축에 탄력적으로 접하는 탄성스커트를 갖는 고무패킹을 착설하여 공기해머작동시 고무패킹은 탄성에의해서 드릴비트축에서 떨어지고 작동을 중단시에는 원상태로 밀착되어 어덥터와 드릴비트축사이로 이물질유입을 방지토록 한다.According to the present invention, the outer diameter of the valve body is made close to the inner diameter of the valve operating chamber so that the valve body is operated so as not to be eccentric in the valve operating chamber, and a plurality of longitudinal grooves are formed on the main surface of the valve body, and a drill bit is formed inside the bush. Rubber packing with elastic skirt elastically in contact with the shaft is installed so that when the air hammer is operated, the rubber packing is dropped from the drill bit shaft by elasticity and closes to its original state when the operation is stopped to prevent foreign material from entering between the adapter and the drill bit shaft. .
또한, 본 발명에 있어서 탄성스커트를 갖는 고무패킹이 어덥터의 하측에 형성한 대경나선공의 상측에 형성된 턱에 착설되고 대경나선공에 나선결합되는 고정링과 부싱으로 고정된다. 고무패킹의 변형을 막기위하여 보호링을 착설하고 고무패킹속에도 O-링을 삽입하여 고무패킹의 비틀림이탈 등의 변형을 막아준다.In addition, in the present invention, the rubber packing having the elastic skirt is fixed to the jaw formed on the upper side of the large-diameter spiral hole formed on the lower side of the adapter and fixed by a fixing ring and a bushing that is spirally coupled to the large-diameter spiral hole. To prevent deformation of rubber packing, install protective ring and insert O-ring in rubber packing to twist rubber packing Prevents deformations such as breakaways.
부싱의 상단에는 고무패킹을 고정하는 L자형 패킹고정면과 탄성스커트가 방사상외측으로 후퇴할수 있는 환상공간을 형성하는 경사면이 형성되어 있다.At the upper end of the bushing, an L-shaped packing fixing surface for fixing the rubber packing and an inclined surface forming an annular space in which the elastic skirt can retract radially outward are formed.
본 고안을 첨부도면에 의거하여 보다 상세히 설명하면 다음과 같다.Referring to the present invention in more detail based on the accompanying drawings as follows.
제1도는 본 고안에 따른 공기해머를 보인 것으로, 해머케이싱(10)내에 중앙에 종방향통로(12)를 갖는 피스톤(14)이 장설되고 해머케이싱(10)의 하단에는 어덥터(16)가 결합되며 이를 통하여 중앙에 종방향통로(18)를 갖는 드릴비트(20)의 축(22)이 삽입된다. 이 드릴비트(20)의 축(22)은 그상단의 엔빌부분(24)이 피스톤(14)의 하단에 의하여 타격을 받게 되어 있다.1 shows an air hammer according to the present invention, in which a piston 14 having a longitudinal passage 12 in the center of the hammer casing 10 is installed, and an adapter 16 is coupled to the lower end of the hammer casing 10. Through this, the shaft 22 of the drill bit 20 having a longitudinal passage 18 in the center is inserted. The shaft 22 of the drill bit 20 is hit by the lower end of the piston 14 with the anvil portion 24 at its upper end.
제2도에서 드릴비트 축(22)의 상측부에는 하단의 턱(26)으로 종방향통로(18)와 경계를 이루는 대경나선공(28)이 형성되어 이에 밸브시이트(30)와 밸브작동실(32)을 갖는 밸브관체(34)가 나선결합되고 밸브작동실(32)내에는 이 밸브작동실(32)의 내경에 가까운 외경을 갖는 절두원추대형의 밸브동체(36)가 장설되며, 밸브동체(36)의 외주면에는 다수의 세로홈(40)이 형성되어 있어 밸브동체(36)의 개방시에 압축공기의 통과량이 충분히 확보될 수 있도록 한다. 이러한 밸브도체(36)는 그 외경이 밸브작동실(32)의 내경에 가까운 크기로 되어 있어 밸브동체(36)의 작동시 이 밸브동체(36)가 편심되는 것이 방지되어 안정된 작동이 이루어질 수 있다.In FIG. 2, a large diameter spiral hole 28 is formed at the upper side of the drill bit shaft 22 to define the longitudinal passage 18 at the lower jaw 26 so that the valve seat 30 and the valve operation chamber are formed. A valve body (34) having a (32) is spirally coupled and a truncated cone-shaped valve body (36) having an outer diameter close to the inner diameter of the valve operating chamber (32) is installed in the valve operating chamber (32). A plurality of longitudinal grooves 40 are formed on the outer circumferential surface of the body 36 so that the passage amount of compressed air can be sufficiently secured when the valve body 36 is opened. Since the valve conductor 36 has an outer diameter close to the inner diameter of the valve operating chamber 32, the valve body 36 is prevented from being eccentric when the valve body 36 is operated, and thus stable operation can be achieved. .
한편 제3도에서, 헤머케이싱(10)의 하단에 결합되는 관상의 어덥터(16)는 그 하측내부에 드릴비트축(22)이 활동하는 내주면(42) 보다 내경이 큰 대경나선공(44)이 형성되어 그상단에서 턱(46)으로 내주면(42)과 경계를 이룬다. 이 턱(46)에는 드릴비트축(22)의 외면에 탄력적으로 접하는 탄성스커트(48)를 갖는 고무패킹(50)이 착설된다. 고무패킹(50)의 외면에는 이 고무패킹(50)이 심하게 압 축되거나 조립시 이탈되는 것을 방지하기 위하여 고무패킹(50)의 상면과 외면을 보호하는 금속제 보호링(51)이 착설되며 고무패킹(50)의 내부에는 보강용 O-링(53)이 매입되어 있다. 대경나선공(44)에는 상측에 패킹고정면(52)과 탄성스커트(48)가 방사상 외측으로 후퇴할 수 있는 환상공간(54)을 형성하는 경사면(56)이 형성된 부싱(58)을 나선결합하여 하단에서 고정링(60)으로 고정토록 한다. 탄성스커트(48)는 드릴비트축(22)의 왕복운동에 장애를 주지 아니하고 드릴비트축(22)의 외면을 따라서 침투하는 돌가루 또는 흙 등의 압력수를 차단한다.Meanwhile, in FIG. 3, the tubular adapter 16 coupled to the lower end of the hemer casing 10 has a larger diameter spiral hole 44 having an inner diameter larger than that of the inner circumferential surface 42 in which the drill bit shaft 22 acts on the lower side thereof. It is formed to form a boundary with the inner circumferential surface 42 to the jaw 46 at the top thereof. The jaw 46 is mounted with a rubber packing 50 having an elastic skirt 48 elastically in contact with the outer surface of the drill bit shaft 22. In order to prevent the rubber packing 50 from being severely compressed or detached during assembly, a rubber protective ring 51 is installed on the outer surface of the rubber packing 50 to protect the upper and outer surfaces of the rubber packing 50. A reinforcing O-ring 53 is embedded in the inside of 50. The large diameter spiral hole 44 spirally couples a bushing 58 having an inclined surface 56 that forms an annular space 54 through which the packing fixing surface 52 and the elastic skirt 48 can retreat radially outward. To be fixed to the fixing ring (60) at the bottom. The elastic skirt 48 blocks pressure water, such as stone dust or dirt, that penetrates along the outer surface of the drill bit shaft 22 without impeding the reciprocating motion of the drill bit shaft 22.
이와같이, 본 고안은 밸브동체(36)가 밸브작동실(32)에서 안정되게 작동하여 밸브동체(36)에 형성한 다수의 세로홈(40)은 밸브동체(36)의 개방시 이 밸브동체(36)와 밸브작동실(32)의 내주면 사이로 통과하는 압축공기의 통과량을 현저히 증가 시킨다. 한편, 드릴비트축(22)의 주면에 탄력적으로 접촉결합되는 탄성스커트(48)는 이물질의 침투를 효과적으로 차단하는 잇점을 갖는 것이다.As such, the present invention provides a plurality of longitudinal grooves 40 formed in the valve body 36 by the valve body 36 operating stably in the valve operating chamber 32, so that the valve body 36 is opened when the valve body 36 is opened. 36) and the passage amount of the compressed air passing between the inner peripheral surface of the valve operation chamber 32 is significantly increased. On the other hand, the elastic skirt 48 elastically contacted to the main surface of the drill bit shaft 22 has the advantage of effectively blocking the penetration of foreign matter.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960040227U KR200153430Y1 (en) | 1996-11-15 | 1996-11-15 | Air hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960040227U KR200153430Y1 (en) | 1996-11-15 | 1996-11-15 | Air hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980027297U KR19980027297U (en) | 1998-08-05 |
| KR200153430Y1 true KR200153430Y1 (en) | 1999-08-02 |
Family
ID=19473967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960040227U KR200153430Y1 (en) | 1996-11-15 | 1996-11-15 | Air hammer |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200153430Y1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101196190B1 (en) * | 2011-02-07 | 2012-11-02 | 창신인터내셔날 주식회사 | hammer fluid distribute control valve |
| KR101378379B1 (en) | 2012-03-20 | 2014-03-27 | 주식회사 대창중기계 | Hammer drill of excavaton |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100908700B1 (en) * | 2002-10-15 | 2009-07-22 | 주식회사 포스코 | Dust Hopper Strike |
-
1996
- 1996-11-15 KR KR2019960040227U patent/KR200153430Y1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101196190B1 (en) * | 2011-02-07 | 2012-11-02 | 창신인터내셔날 주식회사 | hammer fluid distribute control valve |
| KR101378379B1 (en) | 2012-03-20 | 2014-03-27 | 주식회사 대창중기계 | Hammer drill of excavaton |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980027297U (en) | 1998-08-05 |
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