JPS6483798A - Underground excavator - Google Patents
Underground excavatorInfo
- Publication number
- JPS6483798A JPS6483798A JP24067787A JP24067787A JPS6483798A JP S6483798 A JPS6483798 A JP S6483798A JP 24067787 A JP24067787 A JP 24067787A JP 24067787 A JP24067787 A JP 24067787A JP S6483798 A JPS6483798 A JP S6483798A
- Authority
- JP
- Japan
- Prior art keywords
- rotary
- crushing blade
- excavated
- rotary cutter
- secured
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
PURPOSE: To simplify and miniaturize a structure by rotating a rear rotary crushing blade by means of a rotary cutter. CONSTITUTION: A large mass of gravel and the like in excavated matter excavated by a rotary cutter 10 and transferred backward is crushed by a rotary crushing device comprising a rear rotary crushing blade 9 secured to the rotary cutter 10 and a front fixed crushing blade 2 on a fixed crushing board 4 secured to a leading pipe 1, and the excavated matter is discharged onto the ground through an excavated matter discharge pipe line 12 by means of compressed air. The rear rotary crushing blade 9 of the rotary crushing device is rotated by means of the rotary cutter 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62240677A JP2520265B2 (en) | 1987-09-28 | 1987-09-28 | Underground excavation equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62240677A JP2520265B2 (en) | 1987-09-28 | 1987-09-28 | Underground excavation equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6483798A true JPS6483798A (en) | 1989-03-29 |
JP2520265B2 JP2520265B2 (en) | 1996-07-31 |
Family
ID=17063064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62240677A Expired - Fee Related JP2520265B2 (en) | 1987-09-28 | 1987-09-28 | Underground excavation equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2520265B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101072564B1 (en) | 2011-04-25 | 2011-10-11 | 박진수 | Propulsion apparatus for steel pipe pressure capable atmospheric pressure control |
-
1987
- 1987-09-28 JP JP62240677A patent/JP2520265B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2520265B2 (en) | 1996-07-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |