Safety braking device for gear and rack type lifting device

A technology for lifting equipment and safe braking, which is used in elevators, transportation and packaging, elevators in buildings, etc., and can solve problems such as driving gear problems, hidden dangers, wear of friction materials, etc.
CN106744192AActive Publication Date: 2017-05-31TAICANG DENASEN MECHANICAL & ELECTRICAL ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TAICANG DENASEN MECHANICAL & ELECTRICAL ENG CO LTD
Publication Date
2017-05-31

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Abstract

The invention discloses a safety braking device for a gear and rack type lifting device. A movable rack can move horizontally on a rail assembly or keep at certain determined positions. The top of the movable rack makes direct contact with a main bearing structure of a lifting device lift car after entering a braking state for bearing or makes contact with the main bearing structure through a middle transition bearing part for bearing. An operation mechanism for the movable rack operates the movable rack to horizontally move on a rail hole or stay and keep at certain determined positions, wherein the determined positions include a braking position engaged with a drive rack of the lifting device or a free position completely disengaged from the drive rack of the lifting device and having a certain gap with the drive rack. A rack engagement manner is adopted for conducting safety protection braking, and the beneficial effect of obviously improving the safety protection braking quality is achieved.
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Description

technical field

[0001] The invention relates to the field of safety braking devices for lifting equipment, in particular to a safety braking device for rack-and-pinion lifting equipment. Background technique

[0002] The safety braking measures of the existing rack and pinion lifting equipment are realized either by braking the motor shaft or by braking the gear shaft. These methods belong to the friction braking method, and there may be friction Safety hazards caused by material wear or oil pollution; in addition, if there is a problem with the drive gear, the above method will be powerless; and it is possible to have a problem with the drive gear. Therefore, in order to ensure safety, the rack and pinion lifting equipment must be Equipped with a reliable safety brake that can deal with problems including drive gear and similar safety problems. Contents of the invention

[0003] The object of the present invention is to provide a reliable safety braking device capable of...

Claims

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