Tractor tailstock fixing structure and tractor

Abstract

The invention relates to a tractor tail frame fixing structure and the tractor. The tailstock fixing structure of the tractor comprises: a tailstock, on which a through hole is arranged; a middle shaft, which includes two shaft sections, which are respectively the first shaft section and the second shaft section, and the shaft diameter of the first shaft section greater than the shaft diameter of the second shaft section; the fixing device is used to fix the central shaft and the tailstock; wherein, the aperture of the through hole is adapted to the shaft diameter of the second shaft section and is smaller than the first shaft the shaft diameter of the segment; the second shaft segment extends into the through hole and passes through the through hole; the fixing device includes at least one locking nut, and the locking nut is connected to the second shaft segment Threaded connection, so that the tailstock is between the locking nut and the first shaft segment, and the central axis and the tailstock are fixed by the locking nut. The embodiment of the invention solves the problem of broken fixing bolts in the prior art, and improves the working reliability of the tailstock of the tractor.

Description

technical field [0001] The invention relates to a mechanical structure, in particular to a tractor tail frame fixing structure and the tractor. Background technique [0002] The traction machine is the core equipment in the construction of transmission lines, responsible for spreading the conductor belt under a certain tension in the vacated state. The tractor tailstock device is responsible for closely arranging the traction rope and winding it on the tail wheel. The working process of tractor tailstock device is as follows: see figure 1 , hydraulic pump ( figure 1 Not shown in the middle) drives the tail shaft 4 to rotate through the chain drive, and the tail shaft 4 drives the guide rope reel 3 to rotate through the block 2 so as to tighten the traction rope. Wherein, one end of tail stock 1 and tail shaft 4 is connected by block 5, and the other end frame is in the U-shaped groove structure 6 of central axis 7 (as figure 2 shown) and connected by threads. [0003] ...

AI Technical Summary

Problems solved by technology

With this fixed structure of the prior art, during the working process of the tractor, when the tailstock is replaced with a new guide rope reel or there are less guide ropes wound on the guide rope reel, the guide rope reel is lighter and the tailstock is lighter. The radial swing of the shaft is strong, and the radial swing of the tail shaft drives the radial swing of the middle shaft of the tailstock. The connecting bolts between the middle shaft and the tailstock are subject to shear force, which is prone to breakage and reduces the working reliability of the tailstock of the tractor.

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