Power system of combine harvester

Abstract

The invention belongs to the technical field of agricultural equipment and provides a power system of a combine harvester. The power system is characterized by comprising the following mechanisms: a power input mechanism, a gear shift mechanism, a braking mechanism, a steering and clutching drive mechanism and a walking power take off mechanism, wherein axle fit mechanisms which are used for keeping running clearance distances and fixed positions of all the mechanisms are arranged in the power input mechanism, the gear shift mechanism, the steering and clutching drive mechanism and the walking power take off mechanism. The power system of the combine harvester has the advantages that through the axle fit mechanisms, the stability of a crawler transmission structure is guaranteed, failure and damage are not easy, the reduction of maintenance cost is facilitated, the running speed on smooth pavements and adaptability to complicated field parcels of the combine harvester are improved, the cross-region operational performance of the combine harvester is improved greatly, the wear life can be prolonged, the life is further prolonged, and the reliability is further improved.

Description

technical field [0001] The invention belongs to the technical field of agricultural equipment and relates to a combine harvester, in particular to a combine harvester power system. Background technique [0002] Agricultural machinery refers to various machinery used in crop planting and animal husbandry production, as well as in the primary processing and handling of agricultural and animal products. Agricultural machinery also includes crop harvesting machinery, agricultural transport machinery, etc. At present, driven by factors such as national policy guidance and the transfer of rural labor force, the speed of domestic land transfer has accelerated, the area of ​​a single plot has increased, the roads for machine farming have become wider, and the yield per mu of crops has continued to increase. Users have higher and higher requirements on the working efficiency of combine harvesters. On the other hand, users have higher and higher requirements for the return on invest...

AI Technical Summary

Problems solved by technology

On the other hand, users have higher and higher requirements for the return on investment of combine harvesters, and the harvest of single-season crops can no longer meet the user's income requirements

[0003] The walking power output mechanism in the power system here is mainly used to realize the walking, braking and steering of the entire combine harvester by driving the crawler belt, but there are currently big problems due to the unreasonable mechanism of the entire walking power output mechanism. When one side When the track brakes, the walking power output mechanism drives it to produce complete sliding friction against the ground when turning, which seriously damages the soil of the paddy field. When it turns, the track on the braking side will cause soil accumulation, resulting in difficulty in turning. And lead to insufficient fuel combustion. At the same time, due to the demand for combine harvesters in the market, under the same chassis aspect ratio, increasing the weight of the whole machine will make steering more difficult. Once the load increases, the resistance of one side of the track increases. It will cause the engine to stall. At the same time, the prior art walking power output mechanism still has difficulties in walking in wet and soft fields and uneven ground, easy to sink, and poor adaptability. The steering clutch driving mechanism in the prior art is not only complex in structure, but also causes serious loss to the internal friction plates, greatly reducing the lifespan. When the power rotates, there will be abnormal noise, which will affect the power input effect and reduce the power output of the subsequent power output. The braking system of the combine harvester is not only complicated in structure, but the friction plate will move due to the inaccurate position of the friction plate. The loss of the internal friction plate is relatively serious, and the service life is greatly reduced. The structure of the shifting mechanism in the prior art is complex, and with the prolongation of the service time, the parts are not closely matched, resulting in excessive wear and difficulty in shifting gears. Due to the large gap when shifting gears, it is easy to cause out of gear and failure to engage in gear, so it is necessary to improve the entire power system

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