Rock pipe-jacking machine adjustable secondary crushing structure

Abstract

The invention discloses a rock pipe-jacking machine adjustable secondary crushing structure comprising a bin cylinder. A material stripping mechanism is arranged in the bin cylinder, the tail end of the material stripping mechanism communicates with a stirring crushing mechanism, and the stirring crushing mechanism comprises a conical grid plate and an adjusting oil cylinder for driving the conical grid plate to move in the front-back direction and communicates with a discharging mechanism. When the rock pipe-jacking machine adjustable secondary crushing structure is used, rocks are stripped off through rotary squeezing and crushing of a rock cutter disc, the stripped-off rocks enter a stirring crushing bin through an opening of a rock cutter disc panel, and the conical grid plate moves in the front-back direction under driving of the adjusting oil cylinder to change the area of the shearing and crushing sector so as to adapt to the sizes of current rock broken particles; and meanwhile, front-back squeezing force over the rock broken particles is increased while the adjusting oil cylinder drives the conical grid plate to move in the front-back direction, and the crushing capacity is improved.

Description

technical field [0001] The invention relates to a rock pipe jacking machine, in particular to an adjustable secondary crushing structure of the rock pipe jacking machine. Background technique [0002] The mud-water balance method rock pipe jacking machine works under the dual motion and force of the rotary motion of the cutter head and the promotion of the main jacking cylinder. When the main top oil cylinder is pushed forward, the rock is squeezed, broken and peeled off by the cutter head, and then cut and crushed by the broken grid plate on the secondary crushing plate, and then discharged into the mud tank through the sieve hole next to the grid plate, and then discharged into the mud tank by The water pressed into the water inlet pipe reaches the mud tank, and the two are mixed in the mud tank to form a certain concentration of mud-rock mixed fluid, which is transported out in the form of mud through the mud discharge pipe. The secondary crushing structure of the curren...

AI Technical Summary

Problems solved by technology

The secondary crushing structure of the current rock pipe jacking machine cannot cope with different soil properties such as rocks, sand eggs, and clay at the same time, and the crushing capacity is low

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