Variable motor applications on the crane collapsed Edit this paragraph crane hoisting motor performance has detected a hydraulic motor, directly affect the efficiency of the machine's power source of hydraulic motors, but also related to personal and machine safety. So understanding crane hoisting motor structure and working principle of hydraulic motor testing, maintenance and use of cranes are essential. In order to ensure crane reliability, security, Xuzhou Heavy plant and the motor factory joint research, we introduced a new variable motor, the motor is a hydraulic variable control stress-related manner, allowing the motor displacement with liquid infinitely variable control pressure signal. Adjusting the amount of motor control folding Edit this paragraph adjustment control junction primarily by the lever 1, the regulator housing 2, variable piston 3, the pilot pressure control servo valve 4, the regulator spring 5, the feedback spring 6, the regulator guide rod 7, constant pressure control servo valve assembly 8 and the check valve. Constant pressure control servo valve consists of a control valve housing, control spool, the spring and the adjusting screw and other components. Hydraulic motor testing, hydraulic motors, hydraulic creating crystal factory direct crystal provided by the Jinan Chong Hydraulic Machinery Co., Ltd .. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) strong, credible, in Jinan, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead crystal create hydraulic and you hand into the brilliant, for a better future!