Power rotation-angle output case capable of achieving positive and negative rotation

Abstract

The invention discloses a power rotation-angle output case capable of achieving positive and negative rotation. The power rotation-angle output case comprises an input shaft and an output shaft, wherein the input shaft and the output shaft are arranged in a crossed manner. A gear-shifting sliding sleeve is mounted on the input shaft. Input shaft bevel gears are mounted at the two sides of the gear-shifting sliding sleeve through copper sleeves. A middle shaft large bevel gear and a middle shaft small bevel gear are mounted between the input shaft and the output shaft, wherein the middle shaftlarge bevel gear is coaxial with the middle shaft small bevel gear. The middle shaft large bevel gear is engaged with the input shaft bevel gears. The middle shaft small bevel gear is engaged with anoutput shaft bevel gear mounted on the output shaft. A gear shifting fork is arranged at the outer side of the gear-shifting sliding sleeve and mounted on a shifting fork connecting rod in a sleevingmanner. The shifting fork connecting rod is provided with three grooves. The gear shifting fork is provided with a clamping pin and a compression spring, wherein the clamping pin can be clamped into the grooves, and the compression spring jacks the clamping pin in a pressing manner. The gear shifting fork is shifted by a gear-shifting mandrel assembly to move leftwards and rightwards. The gear-shifting mandrel assembly is connected with a gear-shifting handle. By means of the power rotation-angle output case, 90-degree power reversing, positive and negative rotation power steady output and forward and backward double-power output can be achieved; the power rotation-angle output case runs reliably; and the multi-purpose requirement can be met.

Description

technical field [0001] The invention relates to agricultural machinery equipment, in particular to a power corner output box which is applied to the running mechanisms of agricultural machinery such as 30-70 horsepower tractors and self-propelled rotary cultivators and can realize forward and reverse rotation. Background technique [0002] At present, the forward and backward operations of the agricultural machinery used in China are generally through setting forward gears and reverse gears in the gearbox. There are many forward gears and few reverse gears. With the rapid development of agricultural mechanization, one machine with multiple functions It has become a development trend. Fine farming has higher and higher requirements for machines. However, in traditional gearboxes, there are many forward gears, few reverse gears, and a large speed ratio span, which cannot meet the requirements of multi-working conditions and multiple crops. Too few reverse gears It cannot meet ...

AI Technical Summary

Problems solved by technology

[0002] At present, the forward and backward operations of the agricultural machinery used in China are generally through setting forward gears and reverse gears in the gearbox. There are many forward gears and few reverse gears. With the rapid development of agricultural mechanization, one machine with multiple functions It has become a development trend. Fine farming has higher and higher requirements for machines. However, in traditional gearboxes, there are many forward gears, few reverse gears, and a large speed ratio span, which cannot meet the requirements of multi-working conditions and multiple crops. Too few reverse gears It cannot meet the requirements of fine positioning and fast reverse when some machines are working, which greatly reduces the working efficiency

If multiple reverse gears are directly added to the gearbox with traditional structure, the structure is more complicated, the manufacturing cost is high, the volume is large, and the maintenance is difficult, which is not conducive to the overall layout

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