Horizontal electromagnetic lever and rack flat layer control and safety braking device for lifting device

Abstract

The invention discloses a horizontal electromagnetic lever and rack flat layer control and safety braking device for a lifting device. The horizontal electromagnetic lever and rack flat layer control and safety braking device comprises a bearing part, a rail assembly, a movable rack, a limiting mechanism for the movable rack, an operation mechanism for the movable rack, a control device for the operation mechanism for the movable rack and a manual unlocking mechanism. 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. The operation mechanism for the movable rack configured in the horizontal direction operates the movable rack to horizontally move on a rail hole or stay and keep at 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. An electromagnetic pusher matched with a lever is adopted so that cost and energy can be better saved; and the beneficial effects that energy is reduced, effective space is saved, the flat layer precision is obviously improved, and the safety protection braking quality is obviously improved are achieved.

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 horizontal electromagnetic lever rack leveling control of lifting equipment. Background technique [0002] The power unit of the rack and pinion lifting equipment is installed on the equipment car. How to reduce the weight of the device and improve the effective capacity is a task that requires continuous efforts; the leveling control accuracy of the lifting equipment is an important technical indicator, and the new version of the standard is more than The requirements of the old version of the standard are stricter, and how to use a suitable method to meet the requirements of the standard is a topic worth studying; the existing safety brake device of the rack and pinion lifting equipment is realized by stopping the rotation of the driving gear through various methods; but If there is a problem with the drive gear, such as br...

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Problems solved by technology

[0002] The power unit of the rack and pinion lifting equipment is installed on the equipment car. How to reduce the weight of the device and improve the effective capacity is a task that requires continuous efforts; the leveling control accuracy of the lifting equipment is an important technical indicator, and the new version of the standard is more than The requirements of the old version of the standard are stricter, and how to use a suitable method to meet the requirements of the standard is a topic worth studying; the existing safety brake device of the rack and pinion lifting equipment is realized by stopping the rotation of the driving gear through various methods; but If there is a problem with the drive gear, such as broken teeth, reliable braking cannot be guaranteed even if the gear does not rotate; in order to ensure safety, the rack and pinion lifting equipment must be equipped with a reliable safety device that can deal with problems including drive gear and similar safety problems. Braking device

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