The hydraulic pump drive shaft cannot bear radial force and axial force, so it is not allowed to directly install pulleys, gears, and sprockets on the shaft end, and couplings are usually used to connect the drive shaft and the pump drive shaft. If due to manufacturing reasons, the coaxial between the pump and the coupling exceeds the standard, and there are deviations during assembly, the centrifugal force will increase as the pump speed increases, the coupling will deform, and the large deformation will increase the centrifugal force. A vicious circle is created, which results in vibration and noise, which affects the service life of the pump. In addition, there are also influencing factors such as the loose coupling pin not being fastened in time, and the wear and tear of the rubber ring not being replaced in time.

Assembly requirements of the coupling:

The coaxiality error of the two shafts of the rigid coupling is less than or equal to 0.05mm

The coaxiality error of the two shafts of the elastic coupling is less than or equal to 0.1mm

The angle error of the two axes is less than 1°;

The distance between the drive shaft and the pump end should be kept 5-10mm;

Zhejiang Daye Auto Parts Co., Ltd. is China's agricultural machinery hydraulic pump manufacturer and hydraulic pump supplier. The products include wood separation pump, double gear pump, hydraulic gear pump, etc. Please contact us if you need it!