Running belt driving mechanism of treadmill

Abstract

The invention discloses a running belt driving mechanism of a treadmill. The mechanism includes chassis, a running board, a driving roller, a driven roller and an annular running belt. The running board is fixed on the chassis, and the driving roller and the driven roller are installed on the chassis installed on the front and rear sides of the running board, the two sides of each chassis are provided with edge strips, the annular running belt sleeves the driving roller and the driven roller, the running board is located in the annular running belt, the driving roller includes a roller body, the roller body is internally provided with an outer rotor brushless motor, the outer rotor brushless motor includes a stator coil, a rotor magnet sheet and a motor shaft, the stator coil is installedon the motor shaft, the rotor magnet sheet is fixed on the inner wall of the roller body, bearings are installed at the two ends of the motor shaft, and the two ends of the roller body are provided with a front end cover and a rear end cover provided with fan blade type ventilation holes. The cost is reduced, the production and maintenance cost is reduced, the transmission efficiency of the motoris improved, and the service life of the treadmill is prolonged.

Description

Technical field [0001] The invention relates to a treadmill, in particular to a running belt driving mechanism of the treadmill. Background technique [0002] At present, most treadmills on the market use motors installed at the front end of the treadmill, and the rotation of the motor drives the drum to rotate through a belt. Because the installation of the motor takes up a lot of space at the front end of the treadmill, the space occupied by other accessories is limited, and the front end protection cover is enlarged. Increase in transportation costs. At the same time, the belt is an elastic body, which is elastically deformed by pulling force during the transmission process. The elastic deformation of the belt will cause the sliding between the belt and the pulley, which will cause speed loss, reduce the transmission efficiency of the motor, increase the wear of the belt, and later maintain The cost increases and the service life of the treadmill is reduced. Therefore, the d...

AI Technical Summary

Problems solved by technology

[0002] At present, most treadmills on the market use a motor installed at the front end of the treadmill, and the motor rotates through the belt to drive the roller to rotate. Because the installation of the motor occupies a large amount of space at the front end of the treadmill, the space occupied by other accessories is limited, and the front protective cover is enlarged. Production and Increased shipping costs

At the same time, the belt is an elastic body, which is elastically deformed by tension during the transmission process. The elastic deformation of the belt will cause the sliding between the belt and the pulley, resulting in speed loss, reducing the transmission efficiency of the motor, and increasing the wear of the belt. Later maintenance Increased costs and reduced treadmill lifespan

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