发明授权
- 专利标题: Contactless slide guide for elevators
- 专利标题(中): 非接触式电梯导轨
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申请号: US550969申请日: 1995-10-31
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公开(公告)号: US5749444A公开(公告)日: 1998-05-12
- 发明人: Clement A. Skalski
- 申请人: Clement A. Skalski
- 申请人地址: CT Farmington
- 专利权人: Otis Elevator Company
- 当前专利权人: Otis Elevator Company
- 当前专利权人地址: CT Farmington
- 主分类号: B66B7/02
- IPC分类号: B66B7/02 ; B66B7/04 ; F16C39/06 ; F16F15/03
摘要:
A contactless slide guide or magnetic bearing for guiding an elevator vertically along a hoistway rail has one or more electromagnet actuators spring-mounted within a yoke attached to the elevator car at a corner thereof. The positioning of the electromagnets within the yoke is such that they are positioned extremely close to the surface of the rail so as to form a magnetic bearing having a gap of just a few millimeters, and which is controlled in a position feedback control loop to keep the gap constant. The contactless slide guide may be used for low-rise buildings with a rigid connection between the yoke and the elevator, or may be used in conjunction with an active suspension system more typically used in mid- to high-rise buildings. The active suspension system may be used, for example, in conjunction with a pendulum car suspended within the elevator frame to which contactless slide guides are attached at the top and bottom. The active suspension is controlled with a feedback control system that is completely separate from the position control loops used to control the individual contactless slide guides.
公开/授权文献
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