Centrifugal filling method of stationary bike hollow flywheel counter weight filler

Abstract

The invention belongs to a filling method of a stationary bike hollow flywheel counter weight filler. After being spliced, a hollow flywheel shell is placed on a rotary disk of a special filling machine for fixing; the filler with a certain proportion and a certain granularity is filled into a shell cavity through a central cover hole of a hollow flywheel shell which is in high-speed rotation; the whole inner cavity of the flywheel shell can be tamped and filled fully by the filler under a centrifugal action; after the hollow flywheel shell is fully filled by the filler, a shaft cover is pressed into the central cover hole of the hollow flywheel shell; finally the shaft cover and the shell are welded and fixed together; and as the stationary bike hollow flywheel adopts a bran-new counter weight filling technology, the problems in the prior art that the counter weight is not uniform, filling process is complex, waste and unqualified products are easy to generate, production efficiency is low and cost is high are solved.

Description

technical field [0001] The invention relates to a filling method for a hollow flywheel counterweight filler of an exercise bike, and belongs to the technical field of manufacturing technology of exercise bike components. Background technique [0002] The main structure of the traditional exercise bike flywheel is a flywheel made of cast iron. This flywheel has the problems of slow molding speed, high material and processing costs, and also has defects such as rough shape and difficult printing. [0003] Some commercially available exercise bike flywheels are hollow and filled with filler weights. [0004] For example, Chinese patent document CN201168379 discloses a hollow flywheel for an exercise bike. The hollow shell of the flywheel is integrated with the rotating shaft sleeve; one end of the rotating shaft sleeve is provided with a power connection section; The disc-shaped pieces are relatively assembled along the outer periphery and fixedly connected along the joint of ...

AI Technical Summary

Problems solved by technology

The flywheel improves the counterweight method, and uses counterweight discs whose shape corresponds to the shell to be set in pairs, which solves the problems of uneven counterweight and complicated assembly process in the prior art

[0007] However, this kind of hollow flywheel counterweight disc needs precision casting and machining, and the assembly of the disc in the flywheel requires special tooling and must be completed by welding. After completion, a dynamic balance experiment is required. In addition, the counterweight disc The material cost of the sheet is relatively high, so this flywheel has the defects of many overall processing steps, low production efficiency, and high material and processing costs.