Title:
DRIVING DEVICE USING PERMANENT MAGNET
Document Type and Number:
WIPO Patent Application WO/2008/148273
Kind Code:
A1
Abstract:
A driving device using permanent magnet includes a power take off portion and
a driving portion. The power take off portion includes a nonmagnetic main shaft
(4) supported by bearings (3). Many attracted pieces (5) are spirally fixed on
the surface of the main shaft (4) in axial direction. The driving portion includes
a belt (8) and belt carriers (9). Many permanent magnets (10) are fixed on the outer
surface of the belt (8). In the working range, the belt (8) and the main shaft (4)
are parallel axially. There is a gap between the permanent magnet (10) and the
attracted pieces (5). The distance between the adjacent permanent magnets (10)
is equal to the spiral pitch of the attracted piece. The driving device transfers
linear motion to rotation motion utilizing magnetic force of permanent magnet.
There is no direct mechanical friction during transmission and it reduces noise
pollution.
Inventors:
GONG DAMING (CN)
Application Number:
PCT/CN2007/070122
Publication Date:
December 11, 2008
Filing Date:
June 15, 2007
Export Citation:
Assignee:
GONG DAMING (CN)
International Classes:
H02N11/00; F16H49/00; H02K49/10
Foreign References:
| CN2822022Y | 2006-09-27 | |||
| CN1770607A | 2006-05-10 | |||
| JPH089627A | 1996-01-12 | |||
| CN2414546Y | 2001-01-10 | |||
| JP2004032968A | 2004-01-29 | |||
| JPH0750979B2 | 1995-05-31 | |||
| CA2191803A1 | 1998-06-02 |
Attorney, Agent or Firm:
BEIJING SHUANG SHOU INTELLECTUAL PROPERTY AGENT LTD. (Huangtingzi Huayuanlu, Haidian District, Beijing 8, CN)
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