GB2004782A - Hydraulic drilling machine - Google Patents

Hydraulic drilling machine

Info

Publication number
GB2004782A
GB2004782A GB7836949A GB7836949A GB2004782A GB 2004782 A GB2004782 A GB 2004782A GB 7836949 A GB7836949 A GB 7836949A GB 7836949 A GB7836949 A GB 7836949A GB 2004782 A GB2004782 A GB 2004782A
Authority
GB
United Kingdom
Prior art keywords
supply line
pressure
feed motor
drilling machine
hydraulic drilling
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.)
Granted
Application number
GB7836949A
Other versions
GB2004782B (en
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.)
Salzgitter Maschinen und Anlagen AG
Salzgitter Maschinen AG
Original Assignee
Salzgitter Maschinen und Anlagen AG
Salzgitter Maschinen AG
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 Salzgitter Maschinen und Anlagen AG, Salzgitter Maschinen AG filed Critical Salzgitter Maschinen und Anlagen AG
Publication of GB2004782A publication Critical patent/GB2004782A/en
Application granted granted Critical
Publication of GB2004782B publication Critical patent/GB2004782B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/26—Fluid-pressure drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

In a hydraulic drilling machine having a supply line (13) and a feed motor (16) having a supply line (18), a non- return valve (27) has its outlet connected to the feed motor supply line (18) and its inlet connected to tank and this non-return valve is releasable by application of the pressure from the supply line (13) of the feed motor or, if applicable, the pressure in the flush medium line which is obtained by way of a pressure-responsive valve (20) and an associated adjustable throttle valve (21). Thus, the pressure in the supply line for the feed motor is made dependent upon the pressure in the supply line for the drill motor (10) or in the flush medium supply line and conditions indicative of start drilling or lock drilling can be utilised to modify the pressure in the supply line for the feed motor. <IMAGE>
GB7836949A 1977-09-23 1978-09-15 Hydraulic drilling machine Expired GB2004782B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772742851 DE2742851C2 (en) 1977-09-23 1977-09-23 Hydraulic drill

Publications (2)

Publication Number Publication Date
GB2004782A true GB2004782A (en) 1979-04-11
GB2004782B GB2004782B (en) 1982-01-13

Family

ID=6019717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7836949A Expired GB2004782B (en) 1977-09-23 1978-09-15 Hydraulic drilling machine

Country Status (5)

Country Link
JP (1) JPS5454901A (en)
DE (1) DE2742851C2 (en)
FR (1) FR2404097A1 (en)
GB (1) GB2004782B (en)
PL (1) PL115034B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8146681B2 (en) 2008-10-15 2012-04-03 Hilti Aktiengesellschaft Drilling tool and drilling method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440236A (en) * 1979-09-20 1984-04-03 Toyo Kogyo Co. Ltd. Hydraulic control system for a rock drill
JP7116951B2 (en) * 2018-04-10 2022-08-12 株式会社コトブキ産業 Expanding bottom drilling equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE509356A (en) *
AT39641B (en) * 1908-07-20 1909-11-10 Benedikt Oehlen Device for the automatic shutdown of the drive on flushing drills when the water flow after the drill bit is interrupted.
GB1322493A (en) * 1969-06-09 1973-07-04 Victor Products Ltd Drilling machines
FI56722C (en) * 1975-07-24 1980-03-10 Tampella Oy Ab HYDRAULISK BORRMASKIN SPECIELLT BERGBORRMASKIN

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8146681B2 (en) 2008-10-15 2012-04-03 Hilti Aktiengesellschaft Drilling tool and drilling method

Also Published As

Publication number Publication date
DE2742851A1 (en) 1979-04-05
FR2404097A1 (en) 1979-04-20
PL209602A1 (en) 1979-05-21
PL115034B1 (en) 1981-03-31
JPS5454901A (en) 1979-05-01
FR2404097B1 (en) 1983-11-18
DE2742851C2 (en) 1985-04-18
GB2004782B (en) 1982-01-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee