Hydraulic walking mechanism for tunnel lining working jumbo and control method

Abstract

The invention discloses a hydraulic walking mechanism for a tunnel lining working jumbo and a control method. Hydraulic motors on the left side and the right side of a hydraulic oil driver of a hydraulic pump station are connected and then connected with drive wheel axles on the left side and the right side through couplers, so the jumbo is driven to walk; in order to make the jumbo advance or retreat, bidirectional quantitative hydraulic motors are adopted as the hydraulic motors, and the hydraulic motors are rotated forward or backward by changing the flowing direction of hydraulic oil in the hydraulic motors; in order to synchronously control a left drive wheel and a right drive wheel of the jumbo, through signals of pressure sensors between a proportional electromagnetic valve and the hydraulic motors and encoders on driven wheels, the proportional electromagnetic valve is controlled so as to control the rotating speed of the hydraulic motors; a drive mechanism adopted by the hydraulic walking mechanism is simple in structure, high in reliability and convenient to control.

Description

technical field [0001] The invention relates to the field of driving and control of a tunnel lining formwork trolley, in particular to a hydraulic traveling mechanism and a control method for a tunnel lining formwork trolley. Background technique [0002] At present, the walking mechanism of the track-type tunnel lining formwork trolley is generally driven by a motor, and the power is transmitted to the driving wheels on both sides through the motor installed on both sides through the reduction mechanism and the chain. In order to obtain a large driving force, a worm gear reducer is usually installed. . There are more transmission parts in the whole transmission process, which reduces the transmission reliability. At the same time, the transmission efficiency of the worm gear reducer is also relatively low; especially when the left and right driving wheels are not synchronized, the chain on the side with the larger driving force is easy to Fracture occurs, which will affect...

AI Technical Summary

Problems solved by technology

[0006] From the above search, it can be seen that although Patent Announcement 1 can realize the continuous walking of the tunnel lining trolley and even realize the synchronous control of walking, the traveling mechanism is relatively complicated, which reduces the traveling reliability of the traveling device. At the same time, the traveling track must be a rectangular sawtooth rail. Brings difficulties to the processing of the track

Patent announcement 2 Although the running of the tunnel lining trolley does not require a track, which saves the man-hours of track laying, it cannot achieve continuous walking, the walking efficiency is low, and synchronous control cannot be realized at the same time

Images