Title:
DRUM ROTATION DEVICE FOR CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2007/015554
Kind Code:
A1
Abstract:
A support member (12) fixed to a track frame (3) is constructed from a circular
tube section (12A) and a lid section (12D), and two dry-type electromagnetic
brakes (30) are provided in a brake receiving section (12F) of the circular tube
section (12A). Also, an electric motor (14) is installed on the support member
(12). Further, a drum (15) is rotatably installed via a bearing (19) on the outer
periphery of the support member (12), and a planetary gear reduction mechanism
(21) is received in the drum (15). The gap between the support member (12) and the
drum (15) is sealed by a floating seal (44), and the gap between a shaft insertion
hole (12E) of the support member (12) and a connection shaft (26) is sealed by a
seal ring (45). By this, the two dry-type electromagnetic brakes (30) can be received
in the support member (12) in a manner isolated from lubrication oil (22).
More Like This:
| JP2005170150 | WHEEL MOTOR SUPPORTING STRUCTURE |
| WO/2007/128651 | DRIVE UNIT FOR AN INDUSTRIAL TRUCK |
Inventors:
UZAWA NOBUO (JP)
TANAKA ATSUSHI (JP)
OCHIAI MASAMI (JP)
SHIMOZONO TADAHIRO (JP)
JOJIMA YOSHIOMI (JP)
OBATA TAKESHI (JP)
TANAKA ATSUSHI (JP)
OCHIAI MASAMI (JP)
SHIMOZONO TADAHIRO (JP)
JOJIMA YOSHIOMI (JP)
OBATA TAKESHI (JP)
Application Number:
PCT/JP2006/315442
Publication Date:
February 08, 2007
Filing Date:
July 28, 2006
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY (JP)
HITACHI IND EQUIPMENT SYS (JP)
UZAWA NOBUO (JP)
TANAKA ATSUSHI (JP)
OCHIAI MASAMI (JP)
SHIMOZONO TADAHIRO (JP)
JOJIMA YOSHIOMI (JP)
OBATA TAKESHI (JP)
HITACHI IND EQUIPMENT SYS (JP)
UZAWA NOBUO (JP)
TANAKA ATSUSHI (JP)
OCHIAI MASAMI (JP)
SHIMOZONO TADAHIRO (JP)
JOJIMA YOSHIOMI (JP)
OBATA TAKESHI (JP)
International Classes:
B60K7/00; B62D55/125; E02F9/02; F16D55/00; F16D65/18; F16J15/16; H02K7/116
Domestic Patent References:
| WO1999059862A1 | 1999-11-25 |
Foreign References:
| JPH09240525A | 1997-09-16 | |||
| JP2002321665A | 2002-11-05 | |||
| JPS6084857U | 1985-06-11 | |||
| JP2005104216A | 2005-04-21 | |||
| GB2389827A | 2003-12-24 | |||
| DE10331186A1 | 2005-01-27 | |||
| JPH11155256A | 1999-06-08 | |||
| US20040112656A1 | 2004-06-17 | |||
| US5928099A | 1999-07-27 |
Other References:
See also references of EP 1914154A4
Attorney, Agent or Firm:
HIROSE, Kazuhiko (1-2 Nishishinjuku, 3-chom, Shinjuku-ku Tokyo 23, JP)
Download PDF:
Previous Patent: JIG FOR SILICON CARBIDE FIRING AND METHOD FOR PRODUCING POROUS SILICON CARBIDE BODY
Next Patent: VOLTAGE CONVERTER
Next Patent: VOLTAGE CONVERTER