Study on large radius of spherical fiducial surface of bearing of highspeed railway forming base on virtual axis
Study on large radius of spherical fiducial surface of bearing of highspeed railway forming base on virtual axis
- Author(s): Wang Mingfu and Li Hang
- DOI: 10.1049/cp:20061109
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- Author(s): Wang Mingfu and Li Hang Source: International Technology and Innovation Conference 2006 (ITIC 2006), 2006 p. 2053 – 2055
- Conference: International Technology and Innovation Conference 2006 (ITIC 2006)
- DOI: 10.1049/cp:20061109
- ISBN: 0 86341 696 9
- Location: Hangzhou, China
- Conference date: 6-7 Nov. 2006
- Format: PDF
It is popular to use the method of mold grinding at home and abroad when a cylindrical roller-bearing of highspeed railway is proceeded, however it couldn't realize a continuous processing. It's needed to make axis of roller swing around a fixed axis and roller rotate around self-axes in order to realize a continuous processing, which needs a mechanism swinging around fixed axis. Because a diameter of spherical surface of cylindrical roller-bearing exceeds five meters, the dimension of a swinging mechanism must be very huge, which makes moment of inertia become great and limit the swinging speed. This mechanism isn't practical. In view of this situation, a 4-RPR structure based on the theory on parallel robot was brought forward to realize a mechanism swinging around virtual axes. Its dimension and moment of inertia are so small that the continuous processing of rollers could be gotten. The direct and inverse kinematic models are established in this paper.
Inspec keywords: moulding; railway engineering; rollers (machinery); grinding; robot kinematics; rolling bearings
Subjects: Robot and manipulator mechanics; Robotics; Mechanical machinery; Mechanical components; Rail-traffic system control; Forming processes; Robotics; Railway industry; Machining
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