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本文中包括液压传动和电动两种空中拖曳收放机构的构造、设计原理和计算方法。并对部分地面试验和飞行试验的数据进行了整理和分析。 第一部份:根据拖曳物和钢绳在不同高度和速度下的阻力,提出对拖曳收放机构的使用技术要求。初步确定动力装置的功率、扭矩和转速。估计外载荷时,考虑了飞机的不同飞行情况和发动机尾喷气流的影响。 第二部份:为液压传动拖曳收放机构的构造原理和设计计算。液压马达为液压传动拖曳机构中的主要附件之一。我们利用飞机液压泵改为双向液压马达曾经克服不少困难,并利用它初步完成了试飞任务。文中介绍了我们所改装的齿轮式液压马达和活塞式液在马达的性能曲线图,及其转速、扭矩和功率的计算方法。 蜗轮蜗杆减速箱曾经成为拖曳收放机机中的关键问题之一。由于传动功率大,转速高,而又要求有较高的传动效率。在制造中曾经遇到一些困难。本文对蜗轮蜗杆主要参数的计算和滚珠轴承的选择作了简要地介绍。 自动排绳机构成功地解决了钢绳卡滞和扭断的问题。文中介绍了它的构造原理和主要多数。为了使用方便,我们推导出两个简单适用的公式,来计算钢绳的长度和绞盘上所需扭矩和功率的大小。 第三部份:为电动拖曳收放机构。文中有电动机的特性曲线,电机的起动、操纵收放、减速、刹车、和
This article includes two kinds of hydraulic transmission and electric towing retractable body structure, design principles and calculation methods. And some ground tests and flight test data are collated and analyzed. The first part: According to the drag and the rope at different heights and speeds under the resistance proposed towing retractable mechanism of the technical requirements. Preliminary determination of power plant power, torque and speed. When estimating external loads, the effects of different aircraft conditions and the wake of the engine jet are taken into account. The second part: for the hydraulic transmission drag and drop mechanism of the design principles and design calculations. The hydraulic motor is one of the main accessories in the hydraulic transmission towing mechanism. We use the aircraft hydraulic pump to bidirectional hydraulic motor has overcome many difficulties, and use it to initially completed the test mission. This article describes the performance of our modified gear hydraulic motor and piston liquid in the performance curve, and its speed, torque and power calculation. Worm gear reducer has become one of the key issues in the drag-and-drop machine. As the transmission power, high speed, but also requires a higher transmission efficiency. There have been some difficulties in manufacturing. In this paper, the main parameters of the worm gear and the choice of ball bearings made a brief introduction. Automatic rope agencies successfully solved the problem of rope lag and twist. The paper introduces its construction principle and the main majority. For ease of use, we derive two simple and applicable formulas to calculate the length of the rope and the torque and power required on the winch. The third part: retractable mechanism for electric towing. Text in the motor characteristic curve, the motor starting, handling retractable, deceleration, braking, and