JPS5597210A - Scraping-up device for precipitated sand - Google Patents

Scraping-up device for precipitated sand

Info

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
Application number
JP367079A
Other languages
Japanese (ja)
Other versions
JPS5846328B2 (en
Inventor
Yoshiyuki Iwasaki
Tomio Kawabata
Yasuo Tateishi
Osao Sugiyama
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.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP367079A priority Critical patent/JPS5846328B2/en
Publication of JPS5597210A publication Critical patent/JPS5597210A/en
Publication of JPS5846328B2 publication Critical patent/JPS5846328B2/en
Expired legal-status Critical Current

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
JP367079A 1979-01-17 1979-01-17 Sand raking equipment Expired JPS5846328B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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