Hydraulic system debugging and application

1. Routine debugging of hydraulic system

The first is hydraulic pumps. Quantitative pumps are generally adjusted by overflow valves. Variable pumps generally have pressure adjustment and flow adjustment, which can be adjusted according to actual conditions.

The second is that the general hydraulic oil circuit will be equipped with an overflow valve at the beginning of the oil outlet to prevent excessive pressure from breaking the valve and other components to protect it. Generally, adjust this first. The value is higher than your hydraulic component. The work pressure is low, just higher than the required pressure.

The third is to adjust the pressure of your various circuits. There are pressure-reducing valves, pressure relief valves, etc., and the pressure can be adjusted slowly according to the needs. If you use a proportional valve, you generally adjust the speed of the cylinder in and out. It can be produced according to production Efficiency to adjust.

2. Application of hydraulic system

Because hydraulic technology has many advantages, it has been widely used for civil to national defense, from general transmission to precision control. In the machinery industry, 85% of the current machine tool transmission systems use hydraulic transmission and control, such as grinding, milling, planing, drawing, and combined lathes; in construction machinery, hydraulic transmission is commonly used, such as excavators and tire loaders , Automobile starters, crawler bulldozers, self-propelled scrapers, graders, road rollers, etc.; in agricultural machinery, it has been used in combine harvesters, tractors, and tool suspension systems; in the automotive industry, hydraulic brakes, hydraulic self-propelled Unloading, fire-fighting ladders, etc. are widely used; in the metallurgical industry, such as electric furnace control systems, rolling mill control systems, hand furnace charging, converter control, blast furnace control, etc.; in the light and textile industry, such as injection molding machines, rubber vulcanizers , Paper machines, printing machines, textile machinery, etc.; in the shipbuilding industry, such as full hydraulic dredgers, salvage ships, oil production platforms, wing ships, hovercraft and marine auxiliary machinery. In the defense industry, many weapons and equipment of the army, navy, and Air force use hydraulic transmission and control, such as aircraft, tanks, artillery, missiles, and rockets. In short, in all engineering fields, wherever there is mechanical equipment, it can be used. With hydraulic technology, the application fields and equipment are getting wider and more.

The working principle of the hydraulic station is as follows: the motor drives the oil pump to rotate, and the pump sucks oil from the oil tank and outputs pressure oil, which converts the mechanical energy into the pressure energy of the hydraulic oil. The hydraulic oil passes through the integrated block (or valve combination), and the hydraulic valve realizes the direction, After the pressure and flow are adjusted, they are transmitted to the oil cylinder or oil motor of the hydraulic machinery through the external pipeline, thereby controlling the change of the direction of the actuator, the size of the force and the speed of the speed, and pushing various hydraulic machinery to do work.