Earthing removing method for phosphate mine cave

Abstract

The invention discloses an earthing removing method for a phosphate mine cave. A connecting plate is included. Ear plates with shaft holes are mounted on two sides of the upper part of the connecting plate. A trapezoidal reinforcing plate is welded between the ear plates. Two or more than two arc-shaped toothed bars with bucket teeth are welded in the middle of the bottom of the connecting plate. Reinforcing plates are welded between the edge of the square periphery of the connecting plate and the outer walls of the toothed bars. The distance between the upper end parts of the two adjacent toothed bars is 40-60 cm. Alloy sheaths are mounted on the inner sides of the arc-shaped curved surfaces of the toothed bars by means of pin shafts. Toothed sleeves are mounted at the upper parts of the bucket teeth by means of pin shafts. Two arc-shaped diversion trenches are formed in the inside wall of the lower part of each bucket tooth, and extend to the bottoms of the corresponding toothed sleeves along the bottom of the corresponding bucket tooth. The depths of the diversion trenches are progressively increased in the extending direction of the diversion trenches, so that with the penetration of the bucket teeth, a space for releasing the extrusion force action between the inside walls of the bucket teeth and a material matrix is gradually increased, and the undercutting efficiency of the bucket teeth is further improved.

Description

technical field [0001] The invention relates to an excavator, in particular to a method for clearing soil covering in phosphate rock mine caves. Background technique [0002] bulldozer It is an engineering vehicle with a large metal bulldozing knife installed in the front. When in use, put down the bulldozing knife to shovel forward and push mud, sand and stones, etc. The position and angle of the bulldozing knife can be adjusted. The bulldozer can complete excavation, soil transportation and unloading alone, and has the advantages of flexible operation, convenient rotation, and working surface Small, fast driving and other characteristics. It is mainly applicable from one to Three types of soil Shallow excavation and short transportation, such as site clearing or leveling, where the excavation depth is not large Foundation pit and backfill, build small height subgrade Wait. track The track-type tractor (also called crawler dozer) was successfully developed by A...

AI Technical Summary

Problems solved by technology

[0003] At present, when construction machinery such as bulldozers and graders use rippers, due to the harsh and complicated working environment, the working load and impact load are relatively large, the racks and tooth tips of the rippers are subject to a large force, which is easy to cause damage and reduces the gear. The service life of the rod and tooth tip increases the cost and affects the benefit of the enterprise

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