ZF Hydraulic & Pneumatic parts Co., Ltd

ZF Hydraulic & Pneumatic parts Co., Ltd

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Gear pump heating's reason

Author : Zhang Date : 1/25/2013 11:27:17 PM
Gear pump heating's reason

Why the gear pump in the operation time will be motor overheating phenomenon? This is normal? How to deal with it?
Please listen to the ZF HYDRULIC's experts to answer you one by one.
 
Gear pump is applicable to transport not containing solid particles and fibers, non-corrosive, temperature is not higher than 80 ℃, the viscosity for 5 x 10-6 ~ 1.5 x 10-3 m2 / s (5-1500 CST) lubricating oil or similar properties of lubricating oil and other liquid used in hydraulic rotation system. The petroleum, chemical, metallurgy, etc. Mine. Power plant oil medium transfer. Booster. Fuel injection, etc, and large mechanical equipment thin oil circulation, in all kinds of mechanical equipment all can do lubrication pump use.
 
Motor overheating is  the often appeared question of gear pump in the work process, specific analysis and detection are as follows:
1. Use range (flow. Head) more than gear oil pump design requirements?
According to the series spectrum to choose the right machine
2. The proportion of medium more than gear oil pump configuration machine?
Configuration suitable big gear oil pump with motor
3. Packing pressure is too tight or mechanical seal spring tone is too tight?
Readjust the gland or mechanical seal spring compression quantity
4. Gear pump assembly quality difference, there is friction place or motor and pump shaft have different heart?
Check the assembly quality, eliminate assembly fault.

According to the above conditions, one by one analysis, find out the real reason, in accordance with the corresponding fault, maintenance treatment.

The above: Hydraulic filter blockage's reason