Steering hydraulic device for harvester

Abstract

The invention discloses a steering hydraulic device for a harvester. The steering hydraulic device for the harvester comprises a duplex variable pump, an operating handle and a gearbox driven by the operating handle to move forwards and backwards, and further comprises a mobile platform arranged below the gearbox and a moving mechanism connected with the gearbox. The gearbox can move on the mobile platform through the moving mechanism. The operating handle and the gearbox are connected through a driving connecting structure. The gearbox is further provided with a hydraulic oil control mechanism which controls the flowing direction and flow amount of hydraulic oil in the duplex variable pump through forward and backward movement of the gearbox. The gearbox is also provided with a steering centering mechanism which has a steering function and can conduct fast centering after steering is completed. The steering hydraulic device for the harvester is simple in structure, convenient to operate, flexible in steering and good in controllability, the defect that a single handle of a traditional harvester controls steering in one direction is overcome, centering can be fast achieved after steering is completed, and the working efficiency of a driver is improved.

Description

technical field [0001] This invention relates to harvesters, and more particularly to steering hydraulics for harvesters. Background technique [0002] Harvesters are widely used in the agricultural field. With the increasing power and weight of harvester vehicles and the continuous improvement of driving speed, people have higher and higher requirements for the steering performance of harvesters. [0003] At present, the steering of the harvester basically uses independent operating handles, and each operating handle can only complete left or right steering. The working environment of the harvester is relatively complicated, and the road conditions it faces are also relatively complicated. During the turning process of the harvester, the turning radius is large. ,The correction of the driver is strong, especially for crawler harvesters, the correction is more difficult, the steering is not flexible, and the controllability is poor. Contents of the invention [0004] The...

AI Technical Summary

Problems solved by technology

[0003] At present, the steering of the harvester basically adopts an independent operating handle, and each operating handle can only complete the left or right steering. The working environment of the harvester is relatively complicated, and the road conditions it faces are also relatively complicated. During the turning process of the harvester, the turning radius is large. ,The correction of the driver is strong, especially for crawler harvesters, the correction is more difficult, the steering is not flexible, and the controllability is poor.

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