Timing drive system for inhibiting multi-drum threshing vibration and grain combine harvester

Abstract

The invention provides a timing drive system for inhibiting multi-drum threshing vibration and a grain combine harvester. The timing drive system comprises at least two coaxially mounted threshing drums, an engine and a timing drive mechanism, rotating shafts of the threshing drums are connected with the engine, and power of the engine is transferred to the rotating shafts of the threshing drums through the timing drive mechanism, so that all the threshing drums synchronously rotate. Rotating angles cannot produce a deviation. The timing drive mechanism comprises a cogged V-belt and a timing gear, and eccentric force on the threshing drums can be mutually offset owing to the transfer function of the cogged V-belt. When factors such as material weight or rotating speed change and cause fluctuation of the eccentric force on the threshing drums, residual eccentric force can be offset by pulling force provided by the cogged V-belt, and eccentric vibration is prevented. The problem of unbalanced vibration caused by material impact in the threshing process of an existing threshing drum is solved, and the stability and the threshing performance of the threshing drums are ensured.

Description

technical field [0001] The invention belongs to the technical field of grain combine harvester transmission, and in particular relates to a multi-stage timing transmission system and a grain combine harvester for suppressing multi-drum threshing vibration. Background technique [0002] During the working process of the grain combine harvester threshing drum, the material will rotate with it at a high speed after entering the threshing drum. Since the quality of the material is not balanced relative to the rotation center of the threshing drum, an eccentric force will be generated during the high-speed rotation , Destroying the dynamic balance of the threshing drum, causing the unbalanced vibration of the threshing drum, which is easy to cause the threshing drum to malfunction. Suppressing the unbalanced vibration of the threshing drum is crucial to ensure the threshing performance of the threshing drum, and eliminating the eccentric force generated by the high-speed rotation...

AI Technical Summary

Problems solved by technology

It solves the problem of unbalanced vibration of the existing threshing drum due to the influence of materials during the threshing process, and ensures the stability and threshing performance of the threshing drum

[0006] The present invention also provides a grain combine harvester including the timing transmission system for suppressing multi-drum threshing vibration, which solves the problem of the impact and entanglement of the threshing drum of the combine harvester during the threshing process due to the impact and entanglement of the material or due to its own imbalance. Phenomenon that causes the axis to constantly beat

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