Mini-tiller tensioning wheel mechanism

Abstract

The invention discloses a mini-tiller tensioning wheel mechanism, which comprises a support frame and a tensioning wheel abutted against a transmission belt; the mini-tiller tensioning wheel mechanism also comprises a speed reducing shaft, wherein the speed reducing shaft is connected onto the support frame, the tensioning wheel is arranged at one end of the speed reducing shaft through a bearing in a sheathing way, the other end of the speed reducing shaft extends into a gearbox and is connected with a friction disc, and the friction disc is close to a transmission shaft and is used for speed reduction. The mini-tiller tensioning wheel mechanism has the advantages that the tensioning wheel and the friction disc are arranged on the speed reducing shaft, the tensioning wheel can realize the tensioning on a belt through the vertical or transverse movement of the speed reducing shaft, meanwhile, the rotating speed of an output shaft can be reduced through the friction disc, and the speed reducing goal is achieved, so the tensioning wheel can realize the self regulation through the fastening and loosening along with the operation process of the belt or a chain, the proper damping is ensured, the vibration is reduced, and the equipment operation stability is ensured.

Description

technical field [0001] The invention belongs to the technical field of devices for changing the tension of belts, ropes or chains, and in particular relates to a tension wheel mechanism of a tiller. Background technique [0002] With the development of my country's agricultural modernization, micro-tillers have entered many farmers' families. Micro-tillers can reduce farmers' labor intensity and improve labor productivity. There are many structures for power transmission. Belt drive is a common structure of micro tillage machine, which is to set a transmission belt between the driving pulley and the driven pulley, and the driving pulley drives the driven pulley to rotate through the transmission belt, so as to transmit the power to the driven pulley . A tension pulley needs to be set between the driving pulley and the driven pulley. When the tension pulley rotates, the belt is pushed to tension the belt (tighten the belt), prevent it from slipping, and reduce the loss of to...

AI Technical Summary

Problems solved by technology

The main disadvantages of the tensioning pulley in the prior art are as follows: when the operator turns the handle to rotate the tensioning pulley, the position of the tensioning pulley cannot be accurately controlled, and the pushing amount of the tensioning pulley to the belt is difficult to accurately control , the displacement of the tensioning wheel is too large, causing the belt to be overloaded and causing greater wear to the belt; or, the displacement of the tensioning wheel is too small, the tension of the belt cannot reach the best state, and the torque Large loss during belt transmission

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