JPS5597210A - Scraping-up device for precipitated sand - Google Patents
Scraping-up device for precipitated sandInfo
- Publication number
- JPS5597210A JPS5597210A JP367079A JP367079A JPS5597210A JP S5597210 A JPS5597210 A JP S5597210A JP 367079 A JP367079 A JP 367079A JP 367079 A JP367079 A JP 367079A JP S5597210 A JPS5597210 A JP S5597210A
- Authority
- JP
- Japan
- Prior art keywords
- chain wheel
- buckets
- underwater
- precipitated sand
- precipitated
- 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
Abstract
PURPOSE: To adjust the scraping resistance of buckets to scrape precipitated sand under the best condition by moving an underwater head chain wheel by a constant- speed accelerator and providing a mechanism for tensing the chain in response to the movement of the underwater head chain wheel.
CONSTITUTION: When a predetermined pressure is applied through a relief valve 20 from a pump 11 to a cylinder 10, the underwater head chain wheel 5 is press- fitted to the precipitated sand deposit, and buckets 7 bite into precipitated sand. When the precipitated sand scraping resistance of the buckets 7 increases, the tension of the chain becomes greater than a predetermined pressure, and the underwater head chain wheel 5 is pulled between a driving chain wheel 3 and an underwater tail chain wheel 6, thus the buckets 7 being separated from precipitated sand. A tensed chain wheel 4 and a cylinder 13 follow up the reciprocating movement of the underwater head chain wheel 5 and tension-operate a chain 8. For this reason, the hydraulic pressure of the pump 11 is reduced beforehand by a reduction valve 18.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP367079A JPS5846328B2 (en) | 1979-01-17 | 1979-01-17 | Sand raking equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP367079A JPS5846328B2 (en) | 1979-01-17 | 1979-01-17 | Sand raking equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5597210A true JPS5597210A (en) | 1980-07-24 |
JPS5846328B2 JPS5846328B2 (en) | 1983-10-15 |
Family
ID=11563855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP367079A Expired JPS5846328B2 (en) | 1979-01-17 | 1979-01-17 | Sand raking equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5846328B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57105209A (en) * | 1980-12-23 | 1982-06-30 | Nippon Kokan Kk <Nkk> | Raking-up device for settled sand |
-
1979
- 1979-01-17 JP JP367079A patent/JPS5846328B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57105209A (en) * | 1980-12-23 | 1982-06-30 | Nippon Kokan Kk <Nkk> | Raking-up device for settled sand |
JPS6224123B2 (en) * | 1980-12-23 | 1987-05-27 | Nippon Kokan Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS5846328B2 (en) | 1983-10-15 |
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