CA2178814A1 - An in-hole rock drilling machine - Google Patents
An in-hole rock drilling machineInfo
- Publication number
- CA2178814A1 CA2178814A1 CA002178814A CA2178814A CA2178814A1 CA 2178814 A1 CA2178814 A1 CA 2178814A1 CA 002178814 A CA002178814 A CA 002178814A CA 2178814 A CA2178814 A CA 2178814A CA 2178814 A1 CA2178814 A1 CA 2178814A1
- Authority
- CA
- Canada
- Prior art keywords
- machine
- housing
- guided
- length
- rock 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
Links
- 238000005553 drilling Methods 0.000 title abstract 2
- 239000011435 rock Substances 0.000 title abstract 2
- 238000003754 machining Methods 0.000 abstract 1
Landscapes
- Earth Drilling (AREA)
Abstract
An in-hole rock drilling machine has a tubular housing (12) with a piston hammer (24) that is guided at its ends only. Its front portion is guided by a guide bushing (18) that takes support against a shoulder (13) in the housing and its rear end is guided by a valve housing (20). The guide bushing (18), the valve housing (20) and a distance tube (19) between them are clamped together against the shoulder (13) by means of a back head (22) screwed to the machine housing (12). The distance tube (19) is adapted to be compressed axially at least 0.3 pro mille of its length and preferably between 0.8 and 3 pro mille of its length when the back head is screwed into position. This arrangement gives a robust machine and to assemble and to disassemble the machine will be simple. The tolerances in length will not be critical which makes the machining of the various machine parts less critical.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9304125A SE505170C2 (en) | 1993-12-13 | 1993-12-13 | Lowering drill with compressible spacer |
SE9304125.9 | 1993-12-13 | ||
PCT/SE1994/001201 WO1995016848A1 (en) | 1993-12-13 | 1994-12-13 | An in-hole rock drilling machine |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2178814A1 true CA2178814A1 (en) | 1995-06-22 |
CA2178814C CA2178814C (en) | 2005-12-20 |
Family
ID=35645812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002178814A Expired - Fee Related CA2178814C (en) | 1993-12-13 | 1994-12-13 | An in-hole rock drilling machine |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2178814C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105156107B (en) * | 2015-07-06 | 2017-05-17 | 中国矿业大学 | Ultrahigh-pressure rotary pulse water jet rock breaking mechanism |
-
1994
- 1994-12-13 CA CA002178814A patent/CA2178814C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2178814C (en) | 2005-12-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20131213 |