What are the components of the hydraulic pump station of the elevator and what are the functions of each component?

Senior engineer, technical consultant of Lu Xin Machinery Manufacturing Co., Ltd., will introduce the hydraulic pump station to you.

The functional components of hydraulic pump station are mainly composed of five parts: pump device, valve group, integrated block, oil tank and electrical box. Each functional component has its own functions, and its main functions are as follows:

Pump device consists of motor and oil pump, which is the power source and "heart" of hydraulic pressure. It converts mechanical energy into kinetic energy of oil cylinder and realizes the function of lifting goods.

Valve combination is a flat valve installed on the vertical plate, and its function is to adjust the direction, pressure and flow of hydraulic oil.

The manifold block consists of a hydraulic valve and a channel body. Its function is the same as that of valve group, that is, to adjust the direction, pressure and flow of hydraulic oil.

The oil tank is a semi-closed oil storage container welded by steel plates, and is equipped with an oil filter and an air filter. , mainly used for storing hydraulic oil and cooling filter oil.

There are two types of electrical cabinets, one is the terminal board with external leads; The other is equipped with a full set of control appliances, which is convenient to use.

Each functional component can be subdivided into various functions and components, with detailed functions and different division of labor.

1, the motor and gear pump provide the driving force for the whole hydraulic system and are the power sources.

2. The electromagnetic directional valve changes the moving direction of the oil cylinder by controlling the flow direction of the hydraulic oil.

3. The electromagnetic relief valve is the safety department of the whole hydraulic system. When the pressure exceeds the set pressure, the oil in the oil pipe will flow back to the oil tank to prevent the overpressure of the whole hydraulic system, which is equivalent to a safety valve to protect the safety of the oil pump and the oil circuit system and keep the pressure of the hydraulic system constant.

4. The relief valve is the distribution mechanism of the whole hydraulic system. By adjusting the pressure reducing valve, the requirements of different working mechanisms for different working pressures can be met, so that the secondary oil circuit pressure is lower than the primary oil circuit pressure.

5. Speed regulating valve is a kind of regulating mechanism, which regulates the speed by throttling the oil circuit, thus changing the working speed of the hydraulic cylinder of the actuator.

6. Hydraulic oil filter, which is the cleaner of hydraulic oil, is responsible for cleaning the hydraulic oil. The hydraulic station has two oil filter ports, one of which is installed at the oil suction port of the gear pump to avoid inhaling impurities such as particles in the hydraulic oil in the oil tank; The other one is installed on the hydraulic oil pipeline of the system, which is used to remove impurities in the hydraulic oil, as well as colloid, asphaltene and carbonized particles. It is produced by the chemical change of hydraulic oil itself, thus preventing the valve core from being stuck and the damping hole from being blocked. The piping system is equipped with differential pressure alarm device. When the filter element is blocked, it will send a signal. At this time, the filter element should be cleaned or replaced.

7, pressure gauge, is installed on the pump station dynamometer, used to display the working pressure of the hydraulic station, convenient for the operator to control the oil pressure, to prevent the pressure is too large, leading to accidents.

8. The air filter installed on the fuel tank has three functions: one is to prevent pollutants in the air from entering the fuel tank; Second, it plays the role of ventilation to avoid air suction in the oil pump; Third, it also acts as a hydraulic oil supply port.

9, oil level gauge, installed on the side of the oil tank, shows the liquid level of hydraulic oil, when the lifting platform rises to the highest working height, the bottom of the oil tank is not less than 50 mm ..

10, thermometer, is a thermometer in the oil tank, which displays the temperature of hydraulic oil to prevent the hydraulic oil from being too high due to excessive pressure or frequent use, thus causing accidents to the hydraulic elevator.

1 1. The connecting pipeline is the blood vessel of the pumping station, which transports the hydraulic driving force. Most of them use steel pipes, but they also use pressure-resistant hoses.

Understand the main functions of various original components of hydraulic elevators, observe them frequently when using them, handle problems in time, and extend the "effective age" of elevators as much as possible.