摘要目录1--设计(li)1.docVIP

橡胶履带牵引车辆改进设计 （机械双功率流转向装置） 摘 要 随着科学技术发展的日新月异，农业技术也在不断进步。为了满足农业生产的需要，农业机械功率逐渐增大，于是，功率大、功能强且可以适应现代发达的公路交通的橡胶履带式逐渐产生并投入使用。 履带式车辆的转向机构同一般车辆有着很大区别，其技术的发展也经历了一个很长的过程。双功率流转向装置是相对于单功率流而言的。它除由发动机到侧传动的直驶变速功率流外，还可以分出另一路转向功率流，专门用于造成两侧输出转向速度差。这种分直驶转向两流传递功率的履带车辆传动系，称为双功率传动。同传统单功率流传动机构相比，双功率流传动是一个新的发展趋势。机械双功率流转向装置能够实现低挡转向半径小，高挡转向半径大的车辆行驶需求；并且可以减少单功率流中过多使用的滑摩工况，减小转向时能耗；最后，双流传动空挡是可以实现一侧履带向前、另一侧履带向后运动的原位中心转向。 双功率流传动已经在现代履带式车辆上普遍采用，并且随着液压技术的发展，液压机械双功率流传动成为一个新的发展方向。但机械双功率流传动在履带车辆的发展过程中仍是不可或缺的，它是双功率流传动发展过程的基础阶段，其地位是无法取代的。 关键词：履带，双功率流，转向，液压 RUBBER TRACK TRACTOR IMPROVE DESIGN (MECHANICAL DOUBLE POWER TRANSFER DEVICE) ABSTRACT Along with the development of science and technology changing, agricultural technology has been steadily progressing. To meet the needs of agricultural production, agricultural machinery power is gradually increasing, therefore, power, strong function and can adapt to the modern developed highway traffic rubber crawler gradually produced and put into use. Crawler vehicles steering bodies and vehicles have great differences, the development of technology has also gone through a very long process. Power-flow device is for single-phase power flow speaking. Apart from its engine to the drive side of the straight ahead speed power flow, we can also set aside another road to power flow, both devoted to the cause output to the speed difference. This appeared to 2 pm flow transfer power transmission system tracked vehicle, known as the dual-power transmission. With the traditional single-power spread Mechanism, the two-power dynamic is a popular new trend of development. Double transfer power to the device to achieve low-block radius to small, high-block radius to large traffic demand; and can reduce the power flow single excessive use of the sliding friction conditions, to reduce energy consumption when; Finally, Shuangliu transmission in neutral gear can be achieved side track forward, the other side of the track backward movement to the center in situ. Double Power has