A special trolley suitable for large-diameter pressure pipes in diversion tunnels

Abstract

The invention provides a special trolley suitable for large-diameter pressure pipes in water diversion tunnels, belongs to the technical field of transportation equipment, and is used to solve the problem of difficult transportation and installation of large-diameter pressure pipes in tunnels. The trolley includes a walking system, a main beam, a support system, a hydraulic system and an electrical control system. The walking system includes a walking wheel set, a hydraulic motor and a support platform. A counterweight system is provided on the left side of the support platform. The support system includes a support frame, The supporting frame traveling mechanism, the transverse supporting arm and the longitudinal supporting arm, the supporting frame traveling hydraulic cylinder is fixed on the main beam, the telescopic end of the supporting frame traveling hydraulic cylinder is fixedly connected with the supporting traveling mechanism, and the transverse supporting arms are symmetrically distributed on the left and right sides of the supporting frame. On the side, the longitudinal support arm is vertically arranged on the upper part of the support arm. The invention can realize the transportation, adjustment and installation of the pressure steel pipe in the tunnel, is suitable for the loading requirements of pipe fittings of different sizes, has strong adjustability, and greatly improves the construction efficiency and quality.

Description

technical field [0001] The invention belongs to the technical field of transportation equipment, and relates to pipeline transportation equipment, in particular to a special trolley suitable for large-diameter pressure pipelines in water diversion tunnels. Background technique [0002] The diversion tunnel is a hydraulic tunnel that diverts water from the water source, and is divided into a pressure diversion tunnel and a non-pressure diversion tunnel. The pressure diversion tunnel is an underground water delivery structure connecting the shore-type pressurized water inlet of the hydropower station and the surge chamber (or the pressure pipe of the hydropower station without a surge chamber). The pressure diversion tunnel generally adopts a circular cross section. In order to prevent rock collapse and water seepage, reinforced concrete is often used as a permanent lining for the tunnel body, and pressure pipes are arranged inside the tunnel segment lining. The pressure pipes...

AI Technical Summary

Problems solved by technology

[0003] During the construction of the water diversion tunnel, due to the lining of the tunnel segment, the distance between the outer wall of the penstock and the inner diameter of the concrete segment is very small, that is, the transportation and operation space of the penstock in the tunnel is narrow, and the transportation and installation are difficult. The conventional flat trolley Transportation or gantry electric hoist transportation cannot be realized. Therefore, a special trolley suitable for transportation and installation in large-diameter pressure pipes in diversion tunnels must be designed.

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