EP4272900A1 - Schlagkolbenvorrichtung für einen schlagbohrantrieb - Google Patents

Schlagkolbenvorrichtung für einen schlagbohrantrieb Download PDF

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Publication number
EP4272900A1
EP4272900A1 EP22171590.7A EP22171590A EP4272900A1 EP 4272900 A1 EP4272900 A1 EP 4272900A1 EP 22171590 A EP22171590 A EP 22171590A EP 4272900 A1 EP4272900 A1 EP 4272900A1
Authority
EP
European Patent Office
Prior art keywords
valve
percussion piston
piston
control
housing
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.)
Pending
Application number
EP22171590.7A
Other languages
German (de)
English (en)
French (fr)
Inventor
Markus MERZHÄUSER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eurodrill GmbH
Original Assignee
Eurodrill GmbH
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 Eurodrill GmbH filed Critical Eurodrill GmbH
Priority to EP22171590.7A priority Critical patent/EP4272900A1/de
Priority to BR102023006005A priority patent/BR102023006005A8/pt
Priority to US18/297,756 priority patent/US20230358099A1/en
Priority to KR1020230047425A priority patent/KR20230155959A/ko
Priority to JP2023065311A priority patent/JP2023165623A/ja
Priority to CA3197550A priority patent/CA3197550A1/en
Priority to CN202310480333.8A priority patent/CN117005794A/zh
Publication of EP4272900A1 publication Critical patent/EP4272900A1/de
Pending legal-status Critical Current

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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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • 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
    • E21B1/26—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by liquid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/16—Valve arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7055—Linear output members having more than two chambers

Definitions

  • FIG. 1 a first circuit arrangement with a first control device 50, but without the second control device according to the invention, is shown in Fig. 1 shown.
  • a shaft-shaped percussion piston 20 is mounted in a reversibly movable manner in a piston housing 12, which is only indicated schematically.
  • the percussion piston 20 protrudes from the piston housing 12 with a front impact side 22, the impact side 22 being able to impact, for example, a drill drive shaft (not shown).
  • a front first shoulder 24 and at least one further rear second shoulder 28 are formed on the percussion piston 20 in a generally known manner.
  • the shoulders 24, 28 with a larger diameter are axially spaced apart from one another, with an annular space 15 with a smaller diameter being formed between two adjacent shoulders 24, 28.
  • the first shoulder 24 delimits a first front pressure chamber 14 in the piston housing 12 with a cylindrical receiving space, with a front pressure application surface 26 directed towards the front pressure chamber 14 being formed on the first shoulder 24.
  • the control line 57 is separated from the front pressure chamber 14.
  • the annular space 15 comes into connection with a ventilation line 59, which also opens into the piston housing 12. If the percussion piston 20 is in the appropriate position, the annular space 15 can vent to a hydraulic discharge 40 and thus to the tank 42 via the vent line 59. The annular space 15 is therefore pressureless or in any case has a reduced pressure.
  • the vented annular space 15 comes into line connection with the control line 57, so that a corresponding pressure reduction occurs in the control line 57.
  • the first control valve 52 can be changed over via the second control connection 56 of the first control device 50.
  • a connection for the hydraulic supply 30 can be made on one side of the valve housing 70 and a connection for the hydraulic discharge 40 and the control line 68 can be made on the opposite side.
  • Corresponding connections for the connection to the annular spaces for the stroke limitation HB can be arranged on another side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
EP22171590.7A 2022-05-04 2022-05-04 Schlagkolbenvorrichtung für einen schlagbohrantrieb Pending EP4272900A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP22171590.7A EP4272900A1 (de) 2022-05-04 2022-05-04 Schlagkolbenvorrichtung für einen schlagbohrantrieb
BR102023006005A BR102023006005A8 (pt) 2022-05-04 2023-03-30 Dispositivo de pistão de impacto para uma unidade de perfuração de impacto
US18/297,756 US20230358099A1 (en) 2022-05-04 2023-04-10 Impact piston device for a impact drill drive
KR1020230047425A KR20230155959A (ko) 2022-05-04 2023-04-11 충격 드릴 구동용 충격 피스톤 장치
JP2023065311A JP2023165623A (ja) 2022-05-04 2023-04-13 インパクトドリルドライブ用のインパクトピストン装置
CA3197550A CA3197550A1 (en) 2022-05-04 2023-04-20 Impact piston device for a impact drill drive
CN202310480333.8A CN117005794A (zh) 2022-05-04 2023-04-28 用于冲击钻驱动器的冲击活塞装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22171590.7A EP4272900A1 (de) 2022-05-04 2022-05-04 Schlagkolbenvorrichtung für einen schlagbohrantrieb

Publications (1)

Publication Number Publication Date
EP4272900A1 true EP4272900A1 (de) 2023-11-08

Family

ID=81580636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22171590.7A Pending EP4272900A1 (de) 2022-05-04 2022-05-04 Schlagkolbenvorrichtung für einen schlagbohrantrieb

Country Status (7)

Country Link
US (1) US20230358099A1 (zh)
EP (1) EP4272900A1 (zh)
JP (1) JP2023165623A (zh)
KR (1) KR20230155959A (zh)
CN (1) CN117005794A (zh)
BR (1) BR102023006005A8 (zh)
CA (1) CA3197550A1 (zh)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635191C3 (de) 1975-10-14 1981-07-16 Cooper Industries, Inc., Cleveland, Ohio Hydraulische Gesteins-Schlagbohrmaschine
JPS6119574A (ja) * 1984-07-06 1986-01-28 古河鉱業株式会社 液圧式打撃機構

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635191C3 (de) 1975-10-14 1981-07-16 Cooper Industries, Inc., Cleveland, Ohio Hydraulische Gesteins-Schlagbohrmaschine
JPS6119574A (ja) * 1984-07-06 1986-01-28 古河鉱業株式会社 液圧式打撃機構

Also Published As

Publication number Publication date
CA3197550A1 (en) 2023-11-04
CN117005794A (zh) 2023-11-07
BR102023006005A2 (pt) 2024-03-05
KR20230155959A (ko) 2023-11-13
BR102023006005A8 (pt) 2024-03-12
US20230358099A1 (en) 2023-11-09
JP2023165623A (ja) 2023-11-16

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