Measuring device for locating concentricity of rotary cultivator cutter shaft

Abstract

The invention relates to a measuring device for locating the concentricity of a rotary cultivator cutter shaft. A rotary cultivator is composed of a gearbox, a power output device, cross beams, a rack side plate, a cutter shaft connecting plate and driven output devices. The gearbox is connected with one end of the power output device, the other end of the power output device is provided with the driven output devices, the two driven output devices are arranged at the two sides of the power output device in a bilateral symmetry mode, one end of each cross beam is connected with a shell of the power output device, and the two cross beams are symmetrically arranged. The measuring device has the advantages that by means of the device, whether the circle center on a cutter shaft connecting plate and the circle centers of the driven output devices are on the same horizontal plane or not can be accurately measured before the cutter shaft is assembled, stress fatigue generated due to the fact that the mounted cutter shaft is stressed unevenly is effectively avoided, the service life of the cutter shaft is prolonged, and the service life of the cutter shaft, a spline and a side plate bearing is prolonged by 3 times or above.

Description

technical field [0001] The invention relates to a positioning device used before the cutter shaft of an agricultural rotary tiller is installed, in particular to a laser positioning device for measuring the concentricity of the rotary tiller shaft. Background technique [0002] A rotary tiller is a tillage machine that is matched with a tractor to complete plowing and harrowing operations. It has been widely used because of its strong soil breaking ability and flat surface after plowing. At the same time, it can chop up the root stubble buried below the surface, which is convenient for the seeder to operate and provides a good seed bed for later sowing. The correct use and adjustment of the rotary tiller is very important to maintain its good technical condition and ensure the quality of cultivation. [0003] At present, during the assembly and manufacturing process of the rotary tiller, due to the influence of welding deformation, connection hole position error, uneven bol...

AI Technical Summary

Problems solved by technology

[0003] At present, during the assembly and manufacturing process of the rotary tiller, due to the influence of welding deformation, connection hole position error, uneven bolt connection force and deformation of the material itself, it is easy to make the box output shaft (knife flower shaft) and the knife shaft bearing seat The axis cannot be kept concentric, and there is no reference benchmark for detection. Usually, the rotation is basically flexible after the assembly is completed.

The actual non-axiality of the cutter shaft is compensated by the spline engagement gap between the cutter shaft and the output shaft of the box. The wear of the key, and the bearing seat of the cutter shaft and the cutter shaft also bear a huge deformation load, which reduces the service life

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