Hollow needle beam lining trolley

Abstract

The invention disclosed a hollow needle beam lining trolley. A needle beam (10) has a box beam structure with an intermediate preformed hole (35); both ends of the needle beam (10) are respectively provided with a main landing leg (16); the lower end of the main landing leg (16) is provided with a jacking oil cylinder (24) and a first load-bearing screw rod (33); one end of the needle beam (10) is provided with a hoisting machine (23); the other end of the needle beam (10) is provided with a guide pulley (29); a slide bracket (13) is sleeved on the needle beam (10); the upper end of the slidebracket (13) is provided with a travelling hanging wheel (9) and the lower end of the slide bracket (13) is provided with a travelling supporting wheel (12) in sliding touch with the needle beam (10); a template system is arranged on the slide bracket (13); and the front end of the template system is provided with a front hook (27) and the rear end of the template system is provided with a rear hook (28). According to the invention, a hollow design is adopted in the needle beam so as to effectively solve the ventilation problem of small section tunnels; the landing legs are arranged outside the template so that the traffic capacity of tunnel construction equipment is greatly increased; no steel rail is needed to be paved, thus the labor intensity is lower; and the traditional trolley mainframe is canceled, thus the operation is more convenient.

Description

technical field [0001] The invention relates to a formwork equipment specially used for secondary lining construction of tunnels, specifically a hollow needle beam lining trolley suitable for construction of medium and long tunnels with small sections such as railways, highways, water conservancy, and municipal engineering. Background technique [0002] The lining trolley currently used in tunnel construction is mainly composed of a gantry support system, a formwork system, a hydraulic operating system, an electric deceleration travel system and other auxiliary systems. The gantry support system is composed of lower longitudinal beams, columns, gantry beams, splayed supports and support screws. The function of the mold is to ensure the size of the forming surface; the hydraulic system is composed of a pump station, pipelines, operating valves and oil cylinders, and its function is to adjust the vertical formwork and demoulding of the trolley. The walking system is composed o...

AI Technical Summary

Problems solved by technology

[0004] 1. The trolley support system has a complex structure, many components, large ventilation pipelines cannot pass through, and the ventilation conditions are poor, which deteriorates the construction environment

[0005] 2. The formwork and the main frame occupy a large space, so the gantry has a small clearance and poor traffic capacity, which cannot meet the traffic of large-scale construction machinery and equipment. Only small-scale equipment can be used to affect the progress

[0006] 3. The distance between the template and the gantry column is too small, and there are many interfering operating rods, which seriously restrict and affect the construction of the staff

[0007] 4. The track-type walking is adopted. The track must be laid in advance before walking, and the track must be manually moved forward after walking, which is labor-intensive and low-efficiency.

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