Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
AUGER SCREW
Document Type and Number:
Japanese Patent JPS6421196
Kind Code:
A
Abstract:

PURPOSE: To change a screw diameter just by blade pipe exchange, to reduce cost and to facilitate repairing by freely fittably and detachably attaching a blade pipe to which a screw blade is fixed to the outer periphery of an auger shaft provided with female and male joints on end parts.

CONSTITUTION: To the outer periphery of the auger shaft 1 composed of a steel pipe for which the male joint 2 and the female joint 3 are attached to upper and lower end parts by welding, the blade pipe 4 composed of the steel pipe for which the screw blades 5 of the various kinds of diameters are fixed to the outer periphery is freely fittably and detachably fixed through the male and female joints 2 and 3 and bolts 6. Then, when changing the screw diameter or repairing a damaged blade, only by performing exchange with a new blade pipe 4 provided with the screw blade 5 of a desired diameter, the change of the diameter or repairing is easily performed and manufacture cost is substantially reduced.


Inventors:
Yanajima, Kunio
Tominaga, Masami
Oshima, Akira
Application Number:
JP1987000176611
Publication Date:
January 24, 1989
Filing Date:
July 15, 1987
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON CONCRETE IND CO LTD
International Classes:
E21B17/22; (IPC1-7): E21B17/22
Domestic Patent References:
JPS5758795A
JPS6126790B2



 
Previous Patent: 金属浴の循環方法及び炉設備

Next Patent: JPS6421197