Lateral translation device of tunnel secondary lining trolley upper structure

Abstract

The invention discloses a lateral translation device of a tunnel secondary lining trolley upper structure. A rolling disc structure is adopted. The lateral translation device comprises a rolling frame (1), a rolling shaft (2) and limiting baffles (3). The rolling frame (1) is formed by welding longitudinal beams (1-1), transverse beams (1-2) and a ribbed plate (1-3). The two transverse beams (1-2) are connected between the ends of the two parallel longitudinal beams (1-1). Holes are drilled in the longitudinal beams (1-1). The two ends of the rolling shaft (2) penetrate through the holes in the longitudinal beams. The limiting baffles (3) are connected to an upper transverse beam (4) of the trolley and located on the two sides of the two parallel longitudinal beams (1-1). When the upper portion of the lining trolley needs to be subjected to translation, the rolling shaft in the rolling disc achieves the effect of rolling log between the upper beam and an upper longitudinal beam of the trolley, rolling friction is used for replacing sliding friction, friction force between the upper beam and the upper longitudinal beam of the trolley is greatly lowered, and lateral translation of the trolley is more efficient.

Description

technical field [0001] The invention relates to a lateral translation device for the upper structure of a secondary lining trolley used in the secondary lining construction of a tunnel. Background technique [0002] In the past, the lateral translation of the upper structure of the tunnel secondary lining trolley used trolleys or surface contact sliding. The structural size and weight of the trolley are relatively large, and the use of many materials is cumbersome and time-consuming to make. Although the surface contact sliding structure is simple and the material is the most economical, when the upper structure of the trolley is heavy, the friction generated is very large. In order to push the upper structure of the trolley, it is necessary to increase the bore of the oil cylinder or increase the working pressure of the oil circuit, and it is also necessary to strengthen the connecting hinge seat of the oil cylinder, which indirectly increases the cost. Therefore, it is ne...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a lateral translation device for the upper structure of the secondary lining trolley to meet the needs of the secondary lining trolley for the lateral translation of the superstructure during the tunnel lining construction, and to overcome the material problems existing in the prior art. Disadvantages such as waste, tedious and time-consuming production, and high cost

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