A gantry-type double-speed emergency correction device for oil and gas transmission pipelines in goaf subsidence areas

Abstract

The invention discloses a gantry-type double-speed emergency correction device for a mined-out collapse area oil-gas transmission pipeline. The device is characterized in that a low-speed motor and ahigh-speed motor provide power, through a bidirectional overrunning chain wheel assembly mechanism, the power is transferred to a hoist assembly, after the hoist assembly reduces speed, hoisting workis conducted on a lifted object, and meanwhile, an encoder for detecting the height of the lifted object is installed, so that double-speed lifting is achieved, and the stationarity of the lifted object and high efficiency of a lifting system are guaranteed.

Description

technical field [0001] The invention relates to a straightening device for an oil and gas transmission pipeline in a goaf subsidence area, in particular to a two-speed straightening device for improving emergency treatment of an oil and gas transmission pipeline in a goaf subsidence area. Background technique [0002] The publication number is CN202829431U "an adjustable pipeline lifting device". This device uses columns and beams as supports to realize the lifting of the pipeline through the transmission system. The upper and lower columns are matched by flanges to adjust the height of the device. In the actual working conditions of the subsidence area, the temporary manual assembly of the upper and lower columns takes a long time and the efficiency is low, and the emergency response to the goaf subsidence area cannot be carried out in time. When the actual working conditions require a large width of the device, the width of the device cannot be adjusted, and the adjustable ...

AI Technical Summary

Problems solved by technology

[0002] The publication number is CN202829431U "an adjustable pipeline lifting device". This device uses columns and beams as supports to realize the lifting of the pipeline through the transmission system. The upper and lower columns are matched by flanges to adjust the height of the device. In the actual working conditions of the subsidence area, the temporary manual assembly of the upper and lower columns takes a long time and the efficiency is low, and the emergency response to the goaf subsidence area cannot be carried out in time. When the actual working conditions require a large width of the device, the width of the device cannot be adjusted, and the adjustable type The pipeline lifting device adopts the motor as the power source, which can realize the lifting of the pipeline, but the lifting speed of the device is unique, and it is difficult to meet the requirements of the pipeline lifting speed in the goaf subsidence area. Therefore, designing a two-speed straightening device can not only meet the lifting speed Operation requirements, and the device can be adjusted in width and height to meet the needs of different field operations

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