Assembly method of harmonic reducer and drive roller shaft

Assembly method of harmonic reducer and drive roller shaft

⒈ hot charging method

For assembly with small gaps, the shrink-fit method is usually used.There is a gap of 0.04mm between the harmonic reducer and the drive roller shaft, and the assembly gap is small. The first thing to consider is the shrink fitting method.If the thermal loading method is used, it is easy to damage the seal of the reducer in a high temperature environment, reduce its sealing performance, and affect the performance of its internal parts and overall transmission, so the thermal loading method is not suitable.

⒉ Percussion method

When the harmonic reducer is installed, it is generally installed by hoisting method, that is, the reducer is lifted, so that the double key groove of the shaft hole on the reducer is aligned with the double key of the drive roller shaft, and no skew is allowed. Slowly loading the reducer onto the rollers is an extremely difficult and physically demanding job.However, the hole of the reducer and the drive roller shaft are connected by double keys, and the installation length is 300mm. Generally, a transition fit is used. During hoisting and knocking, the reducer is easily tilted, resulting in jamming, which brings serious difficulties to assembly.

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