EP4272900A1 - Schlagkolbenvorrichtung für einen schlagbohrantrieb - Google Patents
Schlagkolbenvorrichtung für einen schlagbohrantrieb Download PDFInfo
- 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
Links
- 238000009527 percussion Methods 0.000 title claims abstract description 88
- 239000012530 fluid Substances 0.000 claims abstract description 36
- 238000005553 drilling Methods 0.000 description 10
- 239000011435 rock Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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)
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)
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 |
-
2022
- 2022-05-04 EP EP22171590.7A patent/EP4272900A1/de active Pending
-
2023
- 2023-03-30 BR BR102023006005A patent/BR102023006005A8/pt unknown
- 2023-04-10 US US18/297,756 patent/US20230358099A1/en active Pending
- 2023-04-11 KR KR1020230047425A patent/KR20230155959A/ko unknown
- 2023-04-13 JP JP2023065311A patent/JP2023165623A/ja active Pending
- 2023-04-20 CA CA3197550A patent/CA3197550A1/en active Pending
- 2023-04-28 CN CN202310480333.8A patent/CN117005794A/zh active Pending
Patent Citations (2)
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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RIC1 | Information provided on ipc code assigned before grant |
Ipc: B25D 9/16 20060101ALI20240202BHEP Ipc: B25D 9/26 20060101ALI20240202BHEP Ipc: E21B 1/26 20060101ALI20240202BHEP Ipc: B25D 9/12 20060101AFI20240202BHEP |
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17Q | First examination report despatched |
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