Variable pump sales *, Jing Chong hydraulic (certified), variable pump

 Central swivel joint composed by the housing and the mandrel, the casing attached to the upper body to the lower body mounting the mandrel. Open on the mandrel and has an equal number of tubing annular groove, from the housing to the hydraulic oil tank through the hole from the vertical flow of the travel motors on the mandrel, so that even when the housing continuously with the upper portion of the rotary body, the mandrel The trench also with the oil port on the housing remain open. Hydraulic oil can freely in and out. Failure to timely replacement of hydraulic oil filter, the filter can lead to open the bypass valve maintenance * variable pump, hydraulic oil due to unfiltered impurities in the oil directly into the center of the sliding surface of the rotary joint, seals it on damage variable pump, the machine while walking due to the pressure side of the oil leak caused by walking on both sides of the motor speed is not the same, resulting in a machine running deviation. Remedy is: rotary joint replacement center seal; hydraulic oil and filter replacement. When the motor is working pressure is lower than the initial pressure variable pressure, constant pressure control servo valve 7 function in the left position, the servo valve 7 is a section of the oil passage, motor complete control by the pilot pressure. At this point, the big variable cylinder chamber is closed variable pump specializing in the oil *, motor will maintain the current displacement. When the motor is operating pressure continues to rise, the servo valve 7 will be in the left position location function, the variable low pressure oil chamber and a large cylinder is turned, a variable piston moves to the right under the action of the small chamber oil pressure, the motor displacement increases great. We know that if the load torque due to the reason or due to a decrease in motor swing angle of the system pressure increases, when it reaches the set value of the constant voltage control, motor pendulum to swing angle larger. When the external load decreases, the motor control process with the above process is reversed, not repeat them here. In short constant voltage control function of the motor is automatically changed according to changes in external load motor displacement, so that the motor operating pressure is kept within the set range. Variable pump sales *, Jing Chong hydraulic (certified), variable pump from Jinan Jing Chong hydraulic machinery Limited. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) Shandong Jinan, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In the crystal to create a hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the crystal to create a better future for the hydraulic.