Steel wire rope hoisting clamp holder for verifying elevator over-speed governor

Abstract

The invention discloses a steel wire rope hoisting clamp holder for verifying an elevator over-speed governor. A steel wire rope is clamped by a lock wrench to break away from the over-speed governor, the steel wire rope is prone to falling off from the lock wrench, and thus dangers are brought to workers. A second clamp of the steel wire rope hoisting clamp holder clamps one side, close to a lift car, of the steel wire rope; in a first clamp, a clamp body placing groove is fixed to a clamp block base, two T-shaped clamp bodies and the clamp body placing groove form sliding pairs, and first clamp blocks and thread sleeves are fixed on the T-shaped clamp bodies; the thread sleeves and a bi-directional lead screw form screw pairs, big gear wheels fixed on the bi-directional lead screw are engaged with small gear wheels fixed on a driving shaft, the center of a crankwheel is hinged to a lifting base and eccentrically hinged to one end of a connecting rod, and the other end of the connecting rod is hinged to a lifting sliding block; and a plunger of a hydraulic pump is fixed to the lifting sliding block, the clamp block base is fixed to piston rods of hydraulic cylinders through a main lifting rod and an auxiliary lifting rod, and the hydraulic pump drives the hydraulic cylinders. According to the steel wire rope hoisting clamp holder for verifying the elevator over-speed governor, the lift car does not need to be hoisted, operation can also be conducted when an elevator is powered off, and dangers are prevented from occurring on workers.

Description

technical field [0001] The invention belongs to the technical field of elevator safety devices, and in particular relates to a steel wire rope hoisting clamp used for checking an elevator overspeed governor. Background technique [0002] At present, elevators are more and more widely used, and the requirements for the calibration of elevator safety devices are getting higher and higher. The elevator calibration regulations stipulate that the elevator speed limiter in normal use needs to be checked every 2 years. For each calibration, it is necessary to separate the steel wire rope from the speed governor. The diameter of the speed governor steel wire rope is generally 8mm, and the specifications are different. One end of the speed limiter steel wire rope is connected to the safety gear on the elevator car, bypasses the speed limiter, hangs down to the bottom pit, bypasses the tension wheel of the pit, and is fixed upward on the car. The car drives the wire rope to move, so t...

AI Technical Summary

Problems solved by technology

The above-mentioned traditional method has the following defects: the forceps are not special tools, the clamping force is unstable, and the wire rope is easy to fall off from the forceps, resulting in clamping failure, which brings certain dangers to the worker's operation; Mastering the stroke will easily cause the lifting distance to be too large or too small, which will cause damage to the tensioning wheel or insufficient lifting distance; this manual operation will easily cause the wire rope to fall off due to unclamping, which is laborious and prone to personal injury

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