Title:
MACHINING METHOD OF REDUCTION GEAR FOR HIGH REDUCTION RATIO
Document Type and Number:
Japanese Patent JP3348388
Kind Code:
B2
Abstract:
PURPOSE: To manufacture reduction gears for high reduction ratio which are inexpensive without reducing their quality when a prime mover for high speed such as gas turbine and steam turbine is used.
CONSTITUTION: In reduction gears for high reduction ratio which are constituted by meshing small gears A with a large gear B, pitch error and surface roughness of the small gears A are finished by a predetermined machining method and the large gear B is finished by rough finish machining to cover the large gear B by copper plating. Projections 2 of copper plating which float from tooth faces of the large gear B are removed due to relative slide and rolling between tooth faces by meshing and rotating the large gear B with the small gears A to finish surface roughness of the tooth face to a specified roughness. The thickness (b) of copper plating which covers the large gear B is set to the thickness which slightly exceeds average roughness (a) calculated by measuring roughness of the tooth face of the large gear B.
Inventors:
Masaaki Kojima
Application Number:
JP1173894A
Publication Date:
November 20, 2002
Filing Date:
February 03, 1994
Export Citation:
Assignee:
Kanzaki Kokyukoki Mfg. Co., Ltd.
International Classes:
B23F19/00; B23P15/14; (IPC1-7): B23P15/14; B23F19/00
Domestic Patent References:
| JP58176503A | ||||
| JP597520A | ||||
| JP3131420A | ||||
| JP3170231A |
Attorney, Agent or Firm:
Juichiro Yano
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