WO2013187691A1 - 해머 상승 장치 - Google Patents

해머 상승 장치 Download PDF

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Publication number
WO2013187691A1
WO2013187691A1 PCT/KR2013/005180 KR2013005180W WO2013187691A1 WO 2013187691 A1 WO2013187691 A1 WO 2013187691A1 KR 2013005180 W KR2013005180 W KR 2013005180W WO 2013187691 A1 WO2013187691 A1 WO 2013187691A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
sub
cylinder
main
main piston
Prior art date
Application number
PCT/KR2013/005180
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
이종직
Original Assignee
주식회사 신우중공업
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 주식회사 신우중공업 filed Critical 주식회사 신우중공업
Priority to CN201380031666.7A priority Critical patent/CN104364458B/zh
Priority to JP2015517185A priority patent/JP6200496B2/ja
Priority to DE112013002983.9T priority patent/DE112013002983B4/de
Priority to US14/406,567 priority patent/US20150144369A1/en
Publication of WO2013187691A1 publication Critical patent/WO2013187691A1/ko
Priority to US15/888,509 priority patent/US20180154506A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/08—Drop drivers with free-falling hammer
    • 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
    • E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
    • 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

Definitions

  • the present invention relates to a hammer lift device, and more particularly, to a hammer lift device to increase the striking strength of the piston by excluding fluid resistance in the piston and the main cylinder when the piston is moved upward.
  • the hammer is mounted on equipment such as an excavator and a loader having a hydraulic pump to control the high-pressure fluid supplied from the hydraulic pump with a predetermined flow path and a valve to raise and lower the piston installed inside the hydraulic hammer. It is a device that causes the tool to crush a rock, and the tool breaks a rock or concrete floor.
  • FIG. 1 shows a conventional hydraulic hammer.
  • a conventional hydraulic hammer will be described in detail with reference to FIG. 1.
  • the hydraulic hammer comprises a valve, an accumulator, a cylinder, a piston and a filling gas reservoir.
  • a valve an accumulator
  • a cylinder a piston
  • a filling gas reservoir a filling gas reservoir
  • valve 100 When the valve 100 is open, the high pressure fluid supplied from the hydraulic pump flows into the cylinder 102. When a high pressure fluid flows into the cylinders 99, the piston 102, which is accommodated inside the cylinders 108, is raised by the pressure of the incoming fluid.
  • the piston 102 has a cylindrical shape, and has a shape in which a central portion protrudes.
  • the cylinder 108 maintains a through shape for accommodating the piston 102 therein, and induces vertical movement of the piston 102.
  • the cylinder 108 does not form the same diameter of the through hole so that the piston 102 having a shape in which the central portion protrudes can move up and down within a certain range. That is, the area where the protruding portion of the piston 102 moves up and down forms a larger diameter of the cylinder through hole than other areas.
  • the piston 102 As the piston 102 is raised, the gas stored in the filling gas reservoir 106 formed at the top of the cylinder is gradually compressed.
  • the valve 100 When the piston 102 is raised to the set position by the hydraulic pressure, the valve 100 is closed, and then the piston moves downward by the force of the piston 102 itself and the force of the gas compressed in the filling gas storage unit 106. Done.
  • the fluid between the cylinder and the piston is moved to the accumulator 104.
  • the conventional hydraulic hammer breaks the rock or concrete ground by repeating the above-described operation.
  • the conventional hydraulic hammer uses a sealing member at the lower end so that the high pressure fluid does not escape into the gap between the piston and the cylinder, thereby reducing the acceleration of the cylinder moving downward by friction between the piston and the cylinder.
  • the sealing member 88 at the lower end which is a sealing member for sealing the piston and the cylinder, is damaged by friction, and the damaged member must be periodically replaced to maintain the desired sealing state.
  • the problem to be solved by the present invention is to propose a method of increasing the impact strength of the piston by increasing the acceleration of the piston moving downward by reducing the friction between the piston and the cylinder.
  • Another problem to be solved by the present invention is to propose a method that can reduce the management cost without requiring the use of a sealing member formed on the lower end sealing the piston and the cylinder.
  • Another problem to be solved by the present invention is to propose a method of preventing overheating between the cylinder and the piston, without using a large pipe to reduce the resistance (drain) line.
  • the hammer raising device of the present invention is a hydraulic control valve for controlling the supply of the fluid, a sub-cylinder supplied with the fluid by the operation of the hydraulic control valve, a portion is accommodated in the sub-cylinder, the rising or falling by the fluid And a main piston which is in close contact with an end of the sub piston, ascends by the rising of the sub piston, and which is lowered when the ends of the in close contact with the sub piston are spaced apart, and a main cylinder accommodating the main piston.
  • the hammer lifting device separates the separation between the main cylinder and the main piston by raising the main piston formed inside the main cylinder by using a cylinder and a piston installed outside without introducing fluid into the main cylinder. Do not use the member. As such, by not using a separate sealing member, an acceleration reduction phenomenon may be prevented due to resistance due to frictional force between the main cylinder and the main piston. In addition, there is an advantage that can increase the number of blows of the piston by raising the main piston using a plurality of sub-piston.
  • the hammer device of the present invention has the advantage of freely adjusting the moving range of the main piston for hitting. That is, the conventional hammer device has to inject the fluid into the main cylinder, and the amount of the fluid to be added according to the movement range of the main piston, but the hammer device of the present invention does not inject the fluid into the main cylinder, the sub-piston By using it, it is possible to freely adjust the moving range.
  • Figure 2 shows a hammer device according to an embodiment of the present invention
  • Figure 3 shows a hammer device according to another embodiment of the present invention
  • Figure 4 shows the structure of the main piston lifting device according to an embodiment of the present invention.
  • FIG. 2 illustrates a hammer device according to an embodiment of the present invention.
  • a hammer device according to an embodiment of the present invention will be described in detail with reference to FIG. 2.
  • the hammer device comprises a hydraulic control valve, a main cylinder, a main piston, a sub cylinder, a sub piston, and a filling gas reservoir.
  • a hydraulic control valve a main cylinder
  • main piston a main piston
  • sub cylinder a sub piston
  • filling gas reservoir a filling gas reservoir
  • the hydraulic control valve 200 controls the movement of the fluid formed at a high pressure supplied from the hydraulic pump.
  • the hydraulic control valve 200 When the hydraulic control valve 200 is opened, the fluid supplied from the hydraulic pump is supplied to the sub cylinder 202.
  • the high pressure fluid supplied to the sub cylinder 202 raises the sub piston 204 present in the sub cylinder 202.
  • the sub piston 204 is in close contact with the lower end of the protruding portion of the main piston 206, and the main piston 206 is also raised by the rising of the sub piston 204.
  • the main piston 206 is in the form of a cylinder and has a shape in which the central portion protrudes.
  • the main cylinder 208 has a through shape to accommodate the main piston 206 therein, and induces vertical movement of the main piston 206.
  • the diameter of the through hole is not equal to the main piston 206 having the shape in which the central portion protrudes (protrusion) so that the main piston 206 can move up and down within a certain range. That is, the area where the protruding portion of the main piston 206 moves up and down forms a larger diameter of the through hole of the main cylinder 208 than other areas.
  • the vertical movement range of the main piston 206 in the main cylinder 208 may be variously manufactured according to the manufacturer's intention.
  • the present invention eliminates the need for a bottom seal between the main piston and the main cylinder by raising the main piston using the sub piston.
  • the vertical movement range of the main piston in the main cylinder can be variously manufactured according to the intention of the manufacturer, and if necessary, the impact strength generated by the main piston can be increased by increasing the movement range.
  • the conventional hydraulic hammer has a disadvantage in that the size of the accumulator and the fluid to be supplied must be increased in order to adjust the vertical movement range of the piston in the cylinder.
  • the sub piston 204 separated from the main piston 206 moves downward, and the sub piston moved downward raises the main piston again.
  • FIG. 3 illustrates a hammer device according to another embodiment of the present invention.
  • another hammer device according to another embodiment of the present invention will be described in detail with reference to FIG. 3.
  • the hammer device includes a first hydraulic control valve, a second hydraulic control valve, a main cylinder, a main piston, a first sub cylinder, a second sub cylinder, a first sub piston, a second sub piston, and a filling gas storage unit.
  • a first hydraulic control valve a second hydraulic control valve
  • main cylinder a main piston
  • first sub cylinder a first sub cylinder
  • second sub cylinder a first sub piston
  • a second sub piston a filling gas storage unit.
  • first hydraulic control valve 300 When the first hydraulic control valve 300 is opened, the fluid supplied from the hydraulic pump is supplied to the first sub cylinder 302. When the second hydraulic control valve 320 is opened, the fluid supplied from the hydraulic pump is supplied to the second sub cylinder 312. In connection with the present invention, the first hydraulic control valve 300 and the second hydraulic control valve 310 are not opened at the same time but open alternately.
  • the high pressure fluid supplied to the first sub cylinder 302 raises the first sub piston 304 present in the first sub cylinder 302.
  • the first sub piston 304 is in close contact with the lower end of the protruding portion of the main piston 306, and the main piston is also raised by the rising of the first sub piston 304.
  • the second sub cylinder 312, the second sub piston 314, and the second switching valve also perform the same operations as the first sub cylinder 302, the first sub piston 304, and the first switching valve. do.
  • the first drive unit and the second sub cylinder 312, the second sub piston 314, and the second sub cylinder 302, the first sub piston 304, and the first switching valve may be configured.
  • the second drive unit configured as the switching valve alternately performs the operation.
  • FIG. 3 forms two hydraulic control valves, but is not limited thereto. That is, two sub pistons are operated using one hydraulic control valve.
  • the main piston forms a groove portion, and the main piston raising device 400 is in close contact with the groove portion.
  • the main piston raising device 400 is connected to the end of the sub piston.
  • the main piston raising device 400 is located below the groove, and the main piston lifting device 400 raises the main piston by the rising of the main piston raising device 400.
  • the switching valve reaches the highest point of the main piston, the main piston raising device 400 is spaced apart from the main piston.
  • the main piston forms the groove part, and the main piston raising device is in close contact with the groove part.
  • the main piston raising device 400 is connected to the end of the sub piston.
  • the main piston raising device 400 is located above the groove, and the main piston lifting device 400 raises the main piston by the rising of the main piston raising device 400.
  • the switching valve reaches the highest point of the main piston, the main piston raising device 400 is spaced apart from the main piston.
  • the main piston is formed in a 'T' shape, the main piston lifting device 400 is in close contact with the lower end of the 'T'.
  • the main piston raising device 400 is connected to the end of the sub piston.
  • the main piston lifting device is located at the lower end of the 'T' and raises the main piston by the rising of the main piston lifting device. When the peak of the main piston is reached, the main piston raising device is automatically spaced away from the main piston.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Paleontology (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Fluid-Pressure Circuits (AREA)
PCT/KR2013/005180 2012-06-14 2013-06-12 해머 상승 장치 WO2013187691A1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201380031666.7A CN104364458B (zh) 2012-06-14 2013-06-12 锤子上升装置
JP2015517185A JP6200496B2 (ja) 2012-06-14 2013-06-12 ハンマー上昇装置
DE112013002983.9T DE112013002983B4 (de) 2012-06-14 2013-06-12 Hammerhebevorrichtung
US14/406,567 US20150144369A1 (en) 2012-06-14 2013-06-12 Hammer Raising Device
US15/888,509 US20180154506A1 (en) 2012-06-14 2018-02-05 Hammer Raising Device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2012-0063876 2012-06-14
KR1020120063876A KR101327392B1 (ko) 2012-06-14 2012-06-14 해머 상승 장치

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US14/406,567 A-371-Of-International US20150144369A1 (en) 2012-06-14 2013-06-12 Hammer Raising Device
US15/888,509 Continuation-In-Part US20180154506A1 (en) 2012-06-14 2018-02-05 Hammer Raising Device

Publications (1)

Publication Number Publication Date
WO2013187691A1 true WO2013187691A1 (ko) 2013-12-19

Family

ID=49758458

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/005180 WO2013187691A1 (ko) 2012-06-14 2013-06-12 해머 상승 장치

Country Status (6)

Country Link
US (1) US20150144369A1 (ja)
JP (1) JP6200496B2 (ja)
KR (1) KR101327392B1 (ja)
CN (1) CN104364458B (ja)
DE (1) DE112013002983B4 (ja)
WO (1) WO2013187691A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180154506A1 (en) * 2012-06-14 2018-06-07 Shinwoo Heavy Industry Co., Ltd. Hammer Raising Device
KR101575059B1 (ko) 2014-08-13 2015-12-08 대모 엔지니어링 주식회사 스프링 및 압축가스식 브레이커

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07157240A (ja) * 1993-12-09 1995-06-20 Mitsubishi Electric Corp 油圧エレベーター装置
JP2002241086A (ja) * 2001-02-14 2002-08-28 Sugiyasu Industries Co Ltd 車両整備用リフト
KR20070041043A (ko) * 2005-10-13 2007-04-18 최해곤 차량용 승강식 회전광고장치
KR20110098352A (ko) * 2010-02-26 2011-09-01 삼성테크윈 주식회사 착용형 로봇용 구동기

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB259592A (en) * 1925-10-08 1928-01-09 Henri Cuinier Improvements in automatic perforating hammers
JPS4731818B1 (ja) * 1969-05-19 1972-08-16
US3872934A (en) * 1973-10-30 1975-03-25 Nippon Pneumatic Mfg Impact tool
JPS5187307A (ja) * 1975-01-29 1976-07-30 Shiraishi Found Soonboshikuiuchisochi
JPS528608A (en) * 1975-07-10 1977-01-22 Tonan Kiso Kougiyou Kk Apparatus for locating premoulded hollow piles
SU945412A2 (ru) * 1978-12-27 1982-07-23 Ордена Трудового Красного Знамени институт гидродинамики СО АН СССР Устройство ударного действи
CH638587A5 (de) * 1979-02-12 1983-09-30 Uster Spindel Motoren Maschf Schlagbohrhammer.
JPS568989Y2 (ja) * 1979-09-04 1981-02-27
FI78158C (fi) * 1986-05-09 1989-06-12 Tampella Oy Ab Anordning vid en borrmaskin foer lagring av ett rotationsstycke.
FR2639279B1 (fr) * 1988-11-23 1991-01-04 Eimco Secoma Appareil de percussion hydraulique avec dispositif de frappe en retrait amortie
JP2813003B2 (ja) * 1989-09-19 1998-10-22 日本ニューマチック工業株式会社 衝撃動装置
DE4017029A1 (de) 1990-05-26 1991-11-28 Delmag Maschinenfabrik Hydrobaer
JP2744999B2 (ja) * 1991-09-30 1998-04-28 川鉄テクノコンストラクション株式会社 水圧ハンマー装置
JP3676879B2 (ja) * 1995-07-25 2005-07-27 株式会社マキタ 締結具打込み工具
FI115759B (fi) * 2002-05-17 2005-07-15 Yrjoe Raunisto Iskuja synnyttävä laite
FI121220B (fi) * 2008-11-20 2010-08-31 Sandvik Mining & Constr Oy Kallioporakone ja aksiaalilaakerimoduuli

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07157240A (ja) * 1993-12-09 1995-06-20 Mitsubishi Electric Corp 油圧エレベーター装置
JP2002241086A (ja) * 2001-02-14 2002-08-28 Sugiyasu Industries Co Ltd 車両整備用リフト
KR20070041043A (ko) * 2005-10-13 2007-04-18 최해곤 차량용 승강식 회전광고장치
KR20110098352A (ko) * 2010-02-26 2011-09-01 삼성테크윈 주식회사 착용형 로봇용 구동기

Also Published As

Publication number Publication date
US20150144369A1 (en) 2015-05-28
CN104364458B (zh) 2016-08-24
CN104364458A (zh) 2015-02-18
KR101327392B1 (ko) 2013-11-08
DE112013002983T5 (de) 2015-03-12
DE112013002983B4 (de) 2021-07-29
JP2015519215A (ja) 2015-07-09
JP6200496B2 (ja) 2017-09-20

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