Title:
走行装置
Document Type and Number:
Japanese Patent JP4703670
Kind Code:
B2
Abstract:
A travel assembly, for example, suited for arrangement on a vehicle such as a mining dump truck, is provided with a travel motor, a planetary speed reduction mechanism for transmitting rotation of the travel motor at a lower rotational speed, a spindle forming an axle, and a wheel supported on the spindle via a tapered roller bearing and rotatable by the planetary speed reduction mechanism. The planetary speed reduction mechanism includes a sun gear rotatable by rotation of a shaft of the travel motor, planet gears for rotating the wheel in response to rotation of the sun gear, stepped pins forming rotary shafts for the planet gears, a carrier for holding the stepped pins thereon, and bolts for fixedly securing the stepped pins on the carrier. The travel assembly is provided with a spline connection connecting the spindle and the carrier with each other and a limiting member for limiting movements of the bolts in a direction toward the tapered roller bearing.
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Inventors:
Shibukawa Soushi
Application Number:
JP2008044694A
Publication Date:
June 15, 2011
Filing Date:
February 26, 2008
Export Citation:
Assignee:
Hitachi Construction Machinery Co., Ltd.
International Classes:
F16H1/46; B60K7/00; F16B41/00
Domestic Patent References:
| JP4165146A | ||||
| JP2007162914A | ||||
| JP2004245356A |
Foreign References:
| US20040065169 |
Attorney, Agent or Firm:
Patent Business Corporation Takewa International Patent Office