Steel rope lifting gripper for checking elevator speed limiter

Abstract

The invention discloses a steel rope lifting gripper for checking an elevator speed limiter, which comprises a first clamp for lifting a first side steel rope of the elevator speed limiter, a second clamp for fixing the first side steel rope of the elevator speed limiter, and a third clamp for fixing a second side steel rope of the elevator speed limiter, wherein each of the first clamp and the second clamp comprises a clamp head and a clamp handle; a rotating hole is arranged between the clamp head and the clamp handle; a rotating shaft is installed inside the rotating hole; a first pressure spring is installed on the clamp handle; the axial directions of the rotating shafts of the first clamp and the second clamp are regard as the vertical directions; a connection column is installed on the rotating shaft of the second clamp; and the lower end of the rotating shaft of the first clamp is installed at the upper end of the connection column, and is capable of rotating around the upper end of the connection column as a circle center. The gripper of the invention integrates a lifting function and a clamping function of the elevator steel rope, is capable of flexibly regulating and recovering the height of the steel rope according to needs, and is simple, precise, labor-saving, efficient and safe in operation.

Description

technical field [0001] The invention relates to a steel wire rope hoisting clamp used for checking the speed governor of an elevator, in particular to a wire rope hoisting clamp for checking the speed governor of an elevator that can be operated without lifting the car and when the elevator is turned off. Holder. Background technique [0002] The elevator inspection regulations stipulate that the elevator speed limiter in normal use needs to be inspected every 2 years. For each calibration, it is necessary to disengage the wire rope from the speed limiter. The diameter of the speed limiter steel wire rope is generally 8mm, one end is connected to the safety gear on the elevator car, bypasses the speed limiter, hangs down to the bottom pit, bypasses the pit tension wheel, and is fixed upward on the car, and the car drives The movement of the wire rope makes the overspeed governor in the elevator machine room and the tensioning pulley in the elevator pit rotate together. Th...

AI Technical Summary

Problems solved by technology

[0005] In the above-mentioned traditional method, the forceps are not special tools, and the clamping force is not enough, and the wire rope is easy to break away from the forceps, resulting in clamping failure; it is difficult to grasp the stroke of the lifting car by jogging in the elevator maintenance state, which is easy to cause the lift to be too large or too small, and the wire rope The lifting height is difficult to control, and it is easy to over-lift and cause damage to the tensioning wheel or insufficient lifting; the loose wire rope also has its own weight, and it requires a lot of manual force to lift it, and it is easy for the wire rope to fall off because it cannot be clamped, which is laborious and easy to be injured. hand

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