Caterpillar band tensioning mechanism for soil sampling and repairing integrated drilling machine

Abstract

The invention discloses a caterpillar band tensioning mechanism for a soil sampling and repairing integrated drilling machine. The caterpillar band tensioning mechanism comprises a guide wheel, a guide block and a tensioning oil cylinder. The guide wheel is located at the forefront end of a tensioning guide wheel assembly and connected to the guide block through a guide wheel spindle. A lining and a folded edge shaft sleeve are arranged between the guide wheel and the guide wheel spindle. Side covers are arranged on the two sides of the guide wheel. Floating oil seals are arranged between the side covers and the middle of the guide wheel. The guide wheel spindle is fixed through a pin. Threaded holes are distributed in the rear end of the guide block so that the guide block can be connected with a push block through bolts. A hole is formed in the middle of the push block to contain a piston rod. The piston rod is fixed to the push block through the bolts and a check ring. A press ring is arranged at the rear end of the tensioning guide wheel assembly. The tail of the tensioning oil cylinder penetrates the press ring. The tensioning oil cylinder is sleeved with a buffer spring. By the adoption of the caterpillar band tensioning mechanism, the situation that a caterpillar band is too tight or too loose can be effectively prevented, and the tightness of the caterpillar band can be adjusted; the oil cylinder is sleeved with the buffer spring, so that space is saved, meanwhile, the oil cylinder is used for guidance, and the structure is convenient and simple; and a tensioning wheel is arranged on a driven wheel, the complexity of the mechanism can be lowered, and maintenance, disassembly and assembly are convenient.

Description

[0001] technical field [0002] The invention relates to the technical field of drilling rig equipment, and in particular relates to a crawler tensioning mechanism of an integrated drilling rig for soil sampling and restoration. Background technique [0003] During the construction process, if the track is too tight, the rigidity of the track will become too large, the tensioning device will not be able to play a buffer role, the loss of engine power will be large and it is easy to wear; if the track is too loose, the tension will not be achieved, resulting in vibration and jumping above the track , It will also cause an increase in friction and wear, and in extreme cases, it may even cause the track to fall off. Contents of the invention [0004] The purpose of the present invention is to overcome the above problems existing in the prior art, and provide a crawler tensioning mechanism of a soil sampling and repairing integrated drilling rig, which can quickly replace and ...

AI Technical Summary

Problems solved by technology

[0003] During the construction process, if the track is too tight, the rigidity of the track will become too large, the tensioning device will not be able to play a buffer role, the loss of engine power will be large and it is easy to wear; if the track is too loose, the tensioning effect will not be achieved, resulting in vibration and jumping above the track , will also cause an increase in friction and wear, and in extreme cases, it may even cause the track to fall off.

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