Electromagnetic wedge-shaped bidirectional rope gripper

Abstract

The invention discloses an electromagnetic wedge-shaped bidirectional rope gripper which solves the problems that the rope gripper of the prior art cannot automatically reset after an action or stop the unplanned movement of an elevator. The electromagnetic wedge-shaped bidirectional rope gripper comprises a box body, a wedge-shaped guide body and wedge components; and the technical point is that: the wedge components are movably assembled on a slide rail of the wedge-shaped guide body through a sliding guide frame; the end parts of the two wedge components are assembled on a linkage support seat which is connected with the core of an electromagnet at the outer side of the box body, thus forming a group of unidirectional gripping devices; the upper and lower groups of symmetrically-arranged unidirectional gripping devices form a bidirectional stop gripping mechanism; and an ejector rod of an ascending outage automatic locker is supported at the bottom of the wedge components of the upper groups of unidirectional gripping devices. The electromagnetic wedge-shaped bidirectional rope gripper is reasonably designed, has a compact structure and a small volume, saves the installation space, is convenient to install, realizes adjustable braking force and automatic reset, ensures steady and reliable braking, is used for gripping the elevator dragging wire rope when the elevator is in an ascending or descending overspeed state, and can meet the standard requirement on protection of preventing unplanned movement.

Description

technical field [0001] The invention relates to a mechanical stop safety device for an elevator, in particular to an electromagnetic wedge-shaped two-way rope gripper which uses two sets of double clamping devices to form a two-way stop structure. Clamp the elevator traction wire rope to keep the elevator in a static state, and can effectively stop the unplanned movement of the elevator. Background technique [0002] At present, the mechanical stop safety devices of elevators are mostly composed of parts such as safety gear and safety gear pull. However, most safety gears can only realize the protection of overspeed in the downward direction, and the damage to the guide rail is relatively large after the action, and it is only one-way protection. The upward overspeed is realized by the upward overspeed protection device, and most of the mechanical safety devices only have an effect on the upward overspeed of the car, but do not involve the unplanned operation of the car. G...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an electromagnetic wedge-shaped two-way rope gripper, which solves the problem that the rope gripper in the prior art cannot automatically reset after action, and cannot stop the unplanned movement of the elevator. The design is reasonable, the structure is compact, and the volume is small. , saving installation space, easy to install, adjustable braking force, stable and reliable braking, automatic reset, not only can be used to clamp the elevator traction wire rope when the elevator is going up or down overspeed, so that the elevator remains in a static state, but also can meet Standard requirements for protection against unplanned movement, thus effectively avoiding accidents of personal injury and property damage

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