Causes and repair methods for hydraulic pump damage

After a certain period of use of the hydraulic pump of the hydraulic press, the parts of the hydraulic pump will wear and damage, resulting in a decrease in the movement accuracy and working performance of the pump, and various abnormal phenomena such as the inability to push up the oil pressure, the oil supply decreases, the intensification of noise, and the increase in vibration. These imaginations are often a symptom of wear or damage to hydraulic pump parts. Once the parts of the hydraulic pump wear out and exceed the allowable deviation, they must be repaired and restored in time to make the hydraulic pump regain the accuracy and working performance. In some cases, skilled operators can easily improve the working performance of hydraulic pumps through excellent repair and assembly.

Causes of hydraulic pump damage

There are various reasons for the damage of hydraulic pumps, but in its essence, there are two main ones:

1. Wearing the wear of the hydraulic pump parts is the inevitable result of mechanical operation, just like the parts of any equipment. Under normal use conditions, the wear gradually increases due to long-term effects of friction and chemical reactions, but it is related to natural wear. This kind of wear cannot be eliminated and avoided, but through careful maintenance and correct use of the pump, the wear procedure can be slowly slowed down. The main causes and phenomena of wear are: friction wear, abrasive wear, pit wear and corrosive wear.

2. Violations of the hydraulic pump operation procedures and maintenance regulations, resulting in serious overload, overspeed, and even parts in the pump have been loose and will fall off, and they are still forced to start, or when reinstalled after disassembly and repair, tools and other foreign objects fall into the pump, causing damage to hydraulic pump parts caused by the fact that the parts in the pump are damaged due to the fact that the tools and other foreign objects fall into the pump.

Repair method of hydraulic pump of hydraulic press

1. Repairing the repair method that compensates the shape and size of the parts through welding, repair, plating, car and grinding, etc. to protect the original accuracy and sealing performance requirements. Under normal circumstances, repairing requires less workload than manufacturing new parts. Therefore, under the conditions of the structure or working performance permit of the parts, the repair method is usually more economical in terms of time and cost.

2. Replacement If the damaged parts are not repaired or technically difficult to repair, and spare parts are available, replace them without hesitation. Replacing new parts can usually shorten the repair cycle. Generally, for easy damage, replacement methods are often adopted. Therefore, it is necessary to effectively prepare spare parts.