Pit-type hardening lifting method and device for nodular cast iron pipe

Abstract

The invention discloses a pit-type hardening lifting device for a nodular cast iron pipe. The pit-type hardening lifting device comprises a lifting arm, wherein the lifting arm comprises two sizing arms, transverse beams, longitudinal beams and lifting lugs; a framework structure is adopted; the two sizing arms are correspondingly fixed on both sides of the transverse beams; the longitudinal beamsand the transverse beams are arranged in a crisscross manner; the lifting lugs are fixed at the upper ends of the transverse beams; symmetric socket telescopic arms and spigot telescopic arms are correspondingly arranged on both ends of the longitudinal beams; and the socket telescopic arms and the spigot telescopic arms are correspondingly composed of L-shaped lifting claws, supporting baseplates and telescopic sliding rods. According to the pit-type hardening lifting device, the equipment automation function can be achieved; the problem that the labor intensity is increased when the nodularcast iron pipe is manually put into a hardening pit can be solved; by adoption of active infrared intrusion detectors, the socket and spigot positions as well as the product specifications can be quickly detected, thereby protecting the nodular cast iron pipe against damage caused by the position non-correspondence; and the pit-type hardening lifting device is time-saving, higher in efficiency, simple to operate, and convenient to use.

Description

technical field [0001] The invention relates to the technical field of pit-type health preservation, in particular to a hoisting method and equipment for pit-type health preservation. Background technique [0002] Ductile iron pipe is a kind of cast iron pipe. The cement-lined ductile iron pipe needs to be hoisted into the curing station so that the cement lining the cast pipe can harden quickly. At present, the way of health preservation generally adopts pit type health preservation. Manually put into the sling to lift the ductile iron pipe 5 into the health maintenance pit. After the health preservation is completed, manually lower into the health preservation pit and hang the hook to hang out of the health preservation pit. The ductile iron pipe 5 is placed in parallel. This method cannot realize automation and unmanned At the same time, workers need to go in and out of the wellness pit frequently, which has great potential safety hazards. Therefore, we have proposed a ...

AI Technical Summary

Problems solved by technology

Manually put into the sling to lift the ductile iron pipe 5 into the health maintenance pit. After the health preservation is completed, manually lower into the health preservation pit and hang the hook to hang out of the health preservation pit. The ductile iron pipe 5 is placed in parallel. This method cannot realize automation and unmanned At the same time, workers need to go in and out of the health pit frequently, which has great potential safety hazards. Therefore, we propose a pit-type health preservation hoisting method and equipment to solve the above problems

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