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What are the characteristics of the rocker drilling machine hydraulic system? Dalan hydraulic engineers probably summarized the following, as follows:
1. The hydraulic system of the radial drilling machine adopts the double throttle speed-regulating circuit of oil inlet and oil return, and is mainly based on the oil return throttle speed regulation. Therefore, the movement of the worktable is stable and the forward stroke phenomenon at the startup of the worktable can be reduced. .
2. The commutation of the table in the hydraulic system uses a time-controlled commutation loop. The four control sides on the reversing valve spool have a small taper cone. At the same time, the one-way throttle valve can be used to adjust the movement speed of the spool, which makes the braking process smooth and reduces the commutation. Impact, which has a higher speed of movement and a smoother commutation requirement.
3. With unloading circuit, when the machine is not working, the system can be unloaded to reduce power loss and reduce oil heat.
Contaminant impurities can cause the wear of hydraulic components relative to the moving surface, slippage of the slide valve, blockage of orifices or gaps, abrasion of sealing components, acceleration of oil aging, causing cavitation, etc. Contamination particles and dirt can block filtration. Accelerate the wear of hydraulic components and directly affect the normal operation of the hydraulic system.
How should we solve these problems? How to maintain it later?
1. Check and replace hydraulic components
Check the hydraulic components. If any worn and aged components, such as filters, air filters, seals, etc., are found, they need to be replaced because the materials are mostly rubber, high pressure, high temperature, oil It becomes brittle and brittle under corrosive action, and tiny particles are blocked to block the valve core.
2, check the exhaust valve
1 Check if there is an exhaust valve in the hydraulic system. If not, install one, and let the hydraulic cylinder drive the working part to reciprocate several times in the maximum stroke to eliminate the air in the hydraulic cylinder.
2 The compressibility of low-pressure air is very large, and the air dissolved in the hydraulic oil will escape from the oil when the pressure is low, generating bubbles and forming a cavitation phenomenon;
3 In the high pressure zone, under the impact of the pressure oil, these bubbles are quickly crushed and the coupling is sharply compressed, causing the system to generate noise, while releasing a large amount of heat, causing local overheating caused by the hydraulic press, causing damage to the hydraulic oil and hydraulic components.
3. Keep it clean during maintenance
When maintaining and repairing the hydraulic system, keep the working environment and tools clean, minimize the exposure time of the system piping, and do not scrub the hydraulic components with cotton yarn.
4, cleaning the entire hydraulic system
After inspection, replacement, and maintenance, the hydraulic system is circulated and filtered to clean the entire system.
-----Responsible Editor: Dalan Oil Pump Motor 02-Procurement Consultant
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