Quick unloading arm device for shield machine with small excavation diameter

Abstract

The invention provides a quick unloading arm device for a shield machine with a small excavation diameter. The quick unloading arm device comprises a sliding device; the sliding device comprises a rolling shaft, support plates and walking mechanisms; two ends of the rolling shaft are arranged on the support plate through bearings; the lower ends of the support plates are fixedly connected with thewalking mechanisms; the walking mechanisms comprise connecting rods and walking wheels; the connecting rods are arranged at the lower ends of the support plates, and the connecting rods are perpendicular to the support plates; the connecting rods are perpendicular to the rolling shafts in space; two ends of the connecting rods are connected with walking wheels through bearings. According to the quick unloading arm device for the shield machine with the small excavation diameter, the segment is transported to a position where a quick unloading head piece beam lifting device can be hoisted without pipe piece beam hoisting, and the function of automatic deviation correction after loading the pipe is achieved.

Description

technical field [0001] The invention belongs to the field of tunneling shield machines, and in particular relates to a shield machine quick unloading arm device suitable for small excavation diameters. Background technique [0002] Tunneling shield machines are widely used in tunnel projects such as subways, railways, highways, and municipal projects. More and more shield machines with small excavation diameters (less than 3.5m) are used in tunnel projects such as hydropower and sewage. The assembled segments of shield machines with medium and large diameters (more than 6 meters) are transported to the rapid unloading equipment by transport trolleys. With traditional large excavation diameters (not less than 6 meters), the space inside the tunnel segments is relatively sufficient, with Lifting space, segment beams can be used to lift and quickly unload segments at any position, and transport them to the grabbing position of the assembly machine (see figure 2 ), the segment ...

AI Technical Summary

Problems solved by technology

For small excavation diameters (less than 3.5m), due to the limited space and no lifting space, the segment beam can only be arranged at the head of the quick unloading, and cannot extend backwards, and the segments on the rear quick unloading Cannot be lifted by the segment beam to the grabbing station of the front assembly machine

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