Shenjia Hydraulic

Release time:

2023-08-07

The working form of a crushing hammer is a rapid reciprocating impact movement within the hydraulic system, and this type of large machinery has a fast oil return speed and relatively large pulse, which will also accelerate the aging rate of the hydraulic pump. Therefore, it is necessary to properly maintain the large crushing hammer and hydraulic pump components. Let's take a look at our commonly used methods.

How to protect the hydraulic pump when a large crushing hammer is working?

Crushing Hammer 1. Use high-quality crushing hammers with accumulators. Poor quality crushing hammers are prone to problems in design, manufacturing, inspection, and other aspects, resulting in a high failure rate during use and more likely to cause damage to the excavator.

2. Before use, the hydraulic system of the crushing hammer should be preheated. When the hammer is parked, the hydraulic oil from the upper part will flow to the lower part. It is recommended to operate with a small throttle every day at the beginning of use. After the oil film on the piston body of the crushing hammer forms, operate with a medium throttle to protect the excavator hydraulic system.

3. Air striking not only causes an increase in oil temperature, but also generates abnormal vibrations that can cause impurities to enter the rigid body of the crushing hammer, so it is strictly prohibited to air strike.

4. Be sure to replenish lubricating grease in the straight state of the steel drill, and add it every 2 hours. If lubricating grease is added while the steel drill is suspended, the grease will enter the striking chamber, and abnormal high pressure oil will be generated in the striking chamber during striking, which will enter the hydraulic system and damage the hydraulic pump.

5. When storing large crushing hammers for a long time, the steel drill should be removed first, and the nitrogen in the upper cylinder should be released to push the piston to the end, to avoid rusting or galling of the exposed part of the piston and damage to the main engine pump.

6. Due to hydraulic oil contamination being one of the main causes of hydraulic pump failure, it is necessary to promptly confirm the contamination status of the hydraulic oil. Lack of hydraulic oil can lead to cavitation, which can cause hydraulic pump failure and damage to the piston cylinder of the crushing hammer. The editor suggests that everyone check the oil level before using it every day.

7. The oil seal is a vulnerable component, and it is recommended to replace the hammer oil seal once when the hammer operates for about 600-800 hours; When the oil seal leaks, it is necessary to immediately stop working and replace the oil seal. Dust on the side can easily enter the hydraulic system, damage the hydraulic system, and damage the hydraulic pump.

8. When installing the crushing hammer pipeline, it is necessary to thoroughly clean it and connect the inlet and outlet oil circuits. When replacing the bucket, the crushing hammer pipeline must be blocked to keep it clean, as sand and other debris entering the hydraulic system can easily damage the hydraulic pump.

9. Suitable engine speed, due to the low requirements for working pressure and flow rate of large crushing hammers, moderate throttle can work; If the high throttle is operated, not only will it not increase the strike force, but it will also cause abnormal heating of the hydraulic oil, which will also cause significant damage to the hydraulic system.

10. The demolition hammer used for demolition has a higher frequency of damage to the main engine and large pump compared to the crushing hammer used in mines. Due to the easy entry of dust into the crushing hammer cylinder along the steel drill, which leads to hydraulic oil pollution and rapid aging, it is recommended to install a return oil filter element in the return oil circuit.

400-600-6670

Tel:

86-513-88402288

Address:

Sijin Industrial Zone, Baidian Town, Hai'an City, Jiangsu Province