曲轴无连杆径向柱塞式液压马达(以下简称无连杆液压马达)是在单作用曲轴连杆径向柱塞式液压马达的基础上发展而成的。它是近十几年来发展起来的一种新结构的低速大扭矩马达。目前国内有些单位已在研制或小批量生产这种马达,一些产品的技术性能已接近或达到国外同类型产品技术水平。并已在万吨货轮、刨煤机、拖拉机、挖掘机和石油钻机等机械上进行试用,收到一定效果。随着液压技术的不断发展,无连杆液压马达将会得到更广泛的应用。 The crankshaft non-connecting rod radial piston type hydraulic motor (hereinafter referred to as a non-link hydraulic motor) is developed on the basis of a single-acting crankshaft connecting rod radial piston type hydraulic motor. It is a new type of low-speed high-torque motor developed in the last decade or more. At present, some domestic units are already developing or producing small quantities of such motors. The technical performance of some products has approached or reached the technological level of foreign products of the same type. And has been in the tons of cargo ship, coal plow, tractors, excavators and oil rigs and other machinery on trial, received a certain effect. With the continuous development of hydraulic technology, non-link hydraulic motors will be more widely used.