Design of movable hydraulic loading tractor power takeoff test device

doi:10.13733/j.jcam.issn.2095-5553.2021.10.19

Abstract

摘要： 为解决拖拉机现场监督检查或维修后对其性能进行测试的需要,设计一种基于液压加载技术的移动式拖拉机动力输出轴(power take-off,以下简称PTO)试验装置;该装置采用高压变量柱塞泵作为系统的加载装置,通过调节柱塞泵的斜盘摆角来调节加载装置的最大加载功率,通过调节油泵输出油口的压力来实现所调范围内的加载扭矩调节,具有体积小、便于移动、操作简单可靠、无需外部供电等特点。经现场比对试验验证,该装置的加载特性与现有的电力测功机相比,进入稳态时间快1.87倍,加载控制精度优于固定式PTO,转动惯量及整机重量约为同功率电力测功机的1/6。

关键词: 拖拉机测试, 移动式PTO, 液压测功机, 比例溢流阀, 加载特性

CLC Number:

S219

Qiu Shaofeng, Zhang Yanjie, Wu Aibing, Wu Ning, Guan Chunsong.. Design of movable hydraulic loading tractor power takeoff test device[J]. Journal of Chinese Agricultural Mechanization, 2021, 42(10): 132-138+79.

邱韶峰, 张延杰, 吴爱兵, 吴宁, 管春松, . 移动式液压加载型拖拉机动力输出轴试验装置设计[J]. 中国农机化学报, 2021, 42(10): 132-138+79.

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