Synchronizer shifting fork gear shift mechanism for tractor

Abstract

The invention relates to a synchronizer shifting fork gear shift mechanism for a tractor, and belongs to the field of tractor gear shift. The synchronizer shifting fork gear shift mechanism is located in a gearbox shell and comprises a gear shaft, a shifting fork shaft, a shifting fork and a gear self-locking device. The gear shaft is perpendicular to the shifting fork shaft, and the gear shaft is sequentially sleeved with a first shifting gear, a synchronizer and a second shifting gear. The synchronizer is in sliding connection with the gear shaft through a spline and can be in hitching connection with the first shifting gear or the second shifting gear. The outer edge of the synchronizer is provided with an annular groove. The shifting fork is provided with a shifting block corresponding to the annular groove. The gear self-locking device is provided with a spring positioning pin abutting against the shifting fork. A first positioning hole, a middle positioning hole and a second positioning hole are formed in the outer side of the shifting fork at intervals. According to the synchronizer shifting fork gear shift mechanism, the product structure is compact, operation is easy and convenient, the shifting fork shaft rotates only under the effect of external force, the gear shifting performance is more stable, gear shifting and hitching connection are easier, more convenient and smoother, and the problem that the synchronizer is likely to be damaged or be out of gear in the gear shifting process can be effectively solved.

Description

technical field [0001] The invention relates to the field of tractor shifting, in particular to a synchronizer fork shifting mechanism for a tractor. Background technique [0002] At present, it is a very common technology for a tractor to realize multiple operating functions of the tractor through a variable speed transmission mechanism. In order to realize the shifting and direction changing functions of tractors, many types of tractor gearboxes have to set a combination of gears with many gears in the gearbox box, which leads to too many gears in the gearbox and too many gears in the transmission mechanism. The complexity also makes the box body of the gearbox too large, and the gears provided cannot fully meet the needs of the tractor in various special ground conditions and special operations, and cannot provide various appropriate speeds, which is harmful to the function of the tractor. Great impact, easy to limit the use of tractors, affect the normal operation of tr...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a synchronizer fork gear shift mechanism for tractors that is more convenient and smooth in gear shifting, more stable in performance, and effectively solves the problems that the synchronizer is prone to damage and out of gear during the gear shifting process.

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