Hydraulic pump damage causes and repair methods

After the hydraulic pump of the hydraulic press is used for a certain period of time, the parts of the hydraulic pump will be damaged by wear, resulting in the movement accuracy and working performance of the pump will be reduced, and various abnormal phenomena such as the oil pressure will not be played up, the oil supply will be reduced, the noise will be increased, and the vibration will be increased. These images are often symptoms of wear or damage to hydraulic pump parts. Once the parts of the hydraulic pump are worn and exceed the allowable deviation, they must be repaired and restored in time, so that the hydraulic pump can get the due accuracy and working performance again. In some cases, skilled operators, through sophisticated repair and assembly, can even improve the performance of the hydraulic pump.

Hydraulic pump damage causes

Hydraulic pump damage has a variety of reasons, but in essence, there are mainly the following two:

1. Wear The wear of hydraulic pump parts, like the parts of any equipment, is the inevitable result of mechanical operation. Under normal conditions of use, the gradual increase in wear due to the long-term effect of factors such as friction and chemical reactions is associated with natural wear. This kind of wear can not be eliminated and avoided, but through the careful maintenance and correct use of the pump, you can slowly slow down the wear process, prolong the wear cycle, the main causes and phenomena of wear; Friction wear, abrasive wear, pitting wear and corrosive wear.

2. Violation of the hydraulic pump operation and maintenance regulations, resulting in serious overload, over-speed, and even the parts in the pump have been loose and will fall off, still forced to start, or after dismantling and reassembly, tools and other foreign bodies fall into the pump caused by the damage of hydraulic pump parts.

Repair method of hydraulic pump of hydraulic press

1. Repair by welding, repair, plating, grinding, grinding and other technological means to compensate the shape and size of the parts, so that it takes care of the original accuracy and sealing performance requirements of the repair method in general, repair than manufacturing new parts to spend less work, so, in the structure of the parts or work performance permit conditions, using the repair method, It is usually economical in terms of time and cost.

2. Replacement If you feel that the damaged parts have no repair value or are technically difficult to repair, and spare parts are available, do not hesitate to replace them. Replacement of new parts can usually shorten the repair cycle, generally easy to damage, take more replacement methods, therefore, must also do a good job of spare parts.