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Title:
METHOD FOR FINISHING TROUGH OF SCREW PUMP
Document Type and Number:
Japanese Patent JP3104783
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To disperse the force added to a blade in the finishing of a trough and prevent a stress collection or distortion by dividing the scraping member on the peripheral part of the blade, mounting each piece on a plurality of peripheral edge parts of the blade, and rotating the blade within the trough to which a finishing material is supplied.
SOLUTION: A scraping member 5a is installed extending from the start end (a) to the terminal end (b) of a blade 3a on the first line, a scraping member 5b is installed extending from the start end (c) to the terminal end (d) of a blade 3b on the second line, and a scraping member 5c is installed extending from the start end (e) to the terminal end (f) of a blade 3c on the third line. When the blade is supported within a trough 2, and a facing is supplied into the trough 2 followed by rotation, the scraping members 5a, 5b, 5c finish the trough inner surface. Since the scraping carrying force of the facing is allotted to each blade 3a, 3b, 3c, the stress collection can be prevented, the blade is never distorted in working, and a proper clearance can be ensured between the periphery of the blade and the trough inner surface. In the attachment and detachment of the scraping members, the operation is facilitated, compared with a conventional long scraping member.


Inventors:
Oura, Kazumitsu
Application Number:
JP1995000345709
Publication Date:
October 30, 2000
Filing Date:
December 07, 1995
Export Citation:
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Assignee:
ISHIGAKI:KK
International Classes:
B08B9/02; B65G33/26; F04B19/12; (IPC1-7): B65G33/26; F04B19/12