The invention relates to the field of agricultural tractors, in particular to a tractor power output assembly which comprises a power input shaft and a shell, the power input shaft is in transmission connection with a duplicate gear shaft, two gears of the duplicate gear shaft are meshed with a high-speed gear and a low-speed gear respectively, and the high-speed gear and the low-speed gear are installed on the outer wall of a driven shaft. The driven shaft is fixed to a first tooth holder, the first tooth holder is meshed with the tooth sleeve, a second tooth holder and a third tooth holder are arranged on the two sides of the first tooth holder, the second tooth holder is fixed to a high-speed gear, and the third tooth holder is fixed to a low-speed gear. A gear shifting mechanism is installed on the shell to drive the gear sleeve to transversely move along the central axis of the driven shaft so that the gear sleeve can be meshed with one of the second tooth holder and the third tooth holder. Two gears with different rotating speeds are arranged to drive the gear sleeve to rotate to achieve switching of the high-gear rotating speed and the low-gear rotating speed, the second tooth holder and the third tooth holder cannot be abraded by adopting the hooking gear sleeve meshing mode, and during hooking, noise is low, and stability is high.
本发明涉及农用拖拉机领域,具体提供了一种拖拉机动力输出总成,包括动力输入轴、壳体,动力输入轴与双联齿轮轴传动连接,双联齿轮轴的两个齿轮分别与高速齿轮、低速齿轮啮合,高速齿轮、低速齿轮安装在从动轴外壁,从动轴与第一齿座固定,第一齿座与齿套啮合,第一齿座两侧配置有第二齿座、第三齿座,第二齿座与高速齿轮固定,第三齿座与低速齿轮固定,壳体上安装换挡机构驱动齿套沿从动轴中心轴线横向平移实现齿套与第二齿座、第三齿座择一啮合。通过设置两种不同转速的齿轮带动齿套转动实现高低挡两种转速的切换,采用挂接齿套啮合的方式不会对第二齿座、第三齿座造成磨损,挂接时噪音小且稳定性高。
Tractor power output assembly
一种拖拉机动力输出总成
2023-12-19
Patent
Electronic Resource
Chinese
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