A tensioned belt drive

Abstract

The invention provides a belt transmission device with the tensioning function. The belt transmission device is provided with a driving shaft, a driving wheel, a driven shaft and a driven wheel. A transmission disk is arranged between the driving shaft and the driving wheel. The driving shaft is fixedly sleeved with the shaft sleeving portion at the front end of the transmission disk. The shaft sleeving portion is sleeved with a driving wheel bearing. The driving wheel bearing is fixedly sleeved with the front section of the driving wheel. The periphery face of the annular lug portion at the rear end of the transmission disk is sleeved with a clutch device capable of expanding in the radial direction. The clutch device is located in the annular portion on the rear section of the driving wheel. An end cover is arranged on the outer side of the rear end of the clutch device and is fixedly connected with the transmission disk through a screw. When the clutch device expands outwards, the outer side face of the clutch device can make contact with the annular portion of the driving wheel. In addition, an eccentric annular base is arranged and is the same as the driven shaft in axial direction. The eccentric annular base can be rotationally arranged on an annular base arranged at one end of a shell. A cut-through eccentric shaft tunnel is formed in the eccentric annular base in the axial direction. The rear section of the driven shaft is embedded in the eccentric shaft tunnel. A driven wheel bearing on the outer side of the eccentric annular base is fixed to the inner wall of the eccentric shaft tunnel.

Description

technical field [0001] The invention relates to a belt transmission device, in particular to a tensioned belt transmission device. Background technique [0002] At present, known belt drive is made up of driving wheel, driven wheel, belt, tensioning pulley or special-purpose tensioning device. In the whole belt transmission system, whether it is tensioned by the tensioning pulley or the proprietary tensioning device (used to change the shaft distance), there are disadvantages of complex structure, large volume and heavy weight; in addition, after the shutdown, When starting again, the tensioning device needs to be loosened to start the power machine. For equipment that needs to be started frequently, the operation is too cumbersome and prone to failure. [0003] In view of this, the inventor has developed a tensioned belt transmission device based on years of experience in production design in this field and related fields, in order to solve the problems in the prior art. ...

AI Technical Summary

Problems solved by technology

In the whole belt transmission system, whether it is tensioned by the tensioning pulley or the proprietary tensioning device (used to change the shaft distance), there are disadvantages of complex structure, large volume and heavy weight; in addition, after the shutdown, When starting up again, it is necessary to loosen the tensioning device to start the power machine. For equipment that needs to be started frequently, the operation is too cumbersome and prone to failure

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