Product Description

Sany Crane Parts Gear Pump CBW5AG040R

60250771 fits the following models:

Function:

Crane gear pump is an important hydraulic component, plays a key role in the hydraulic system of the crane, mainly in the following aspects: 1. Provide hydraulic power principle: gear pump through the gear meshing and rotation, the mechanical energy into hydraulic energy. When the gears rotate, the meshing area of the gears will form a low-pressure area, inhaling hydraulic oil; in the separation area of the gears will form a high-pressure area, the hydraulic oil will be discharged. This pressure oil provides the power source for the hydraulic system of the crane. Role: The hydraulic system is the core of the crane to realise various actions, such as the telescoping, luffing, rotating of the lifting arm and the lifting and lowering of the hook. The pressure oil provided by the gear pump drives the hydraulic cylinders and hydraulic motors so that these parts can work normally, thus realising the various functions of the crane. 2. Control the flow and pressure of the hydraulic oil Flow Control: The output flow of the gear pump can be realised by adjusting its rotational speed. In different working stages of the crane, different flow rates are needed to meet the operating requirements. For example, a larger flow rate is needed when the boom is rapidly retracting; while a smaller flow rate is needed when fine-tuning the boom position. Gear pumps can flexibly adjust the flow rate according to the actual demand, in order to adapt to a variety of working conditions of the crane. Pressure control: the gear pump can maintain a certain pressure in the hydraulic system. The pressure in the hydraulic system directly affects the working capacity and safety of the crane. By precisely controlling the pressure, it can ensure that the crane can withstand the corresponding load during the lifting process, and at the same time avoid damaging the hydraulic components due to high pressure.3. Ensure the lubrication and cooling lubrication of the hydraulic system: the hydraulic oil not only serves as the power transmission medium in the hydraulic system, but also plays the role of lubrication. Gear pump in the operation process, the hydraulic oil will flow through the hydraulic system in the various components, such as hydraulic cylinders, hydraulic motors, control valves, etc., to take away the friction generated by the heat, reduce the wear and tear between the components, to extend the service life of hydraulic components. Cooling: In the process of crane work, the hydraulic system will produce heat, especially in long time high load work. Gear pump through the continuous circulation of hydraulic oil, the heat will be taken away from the high-temperature region, distributed to the external environment, so as to maintain the normal working temperature of the hydraulic system, to prevent overheating caused by the deterioration of the hydraulic oil or hydraulic components failure. 4. to achieve the stable operation of the hydraulic system Pressure Compensation: Gear pumps can play a role of pressure compensation in the hydraulic system. When the hydraulic system pressure fluctuations, the gear pump can automatically adjust the output pressure through its own adjustment mechanism, so that the hydraulic system to maintain a stable pressure state, to ensure that the crane's various actions can be performed smoothly and accurately. Prevent cavitation: In the hydraulic system, if the hydraulic oil is mixed with air, it may lead to cavitation phenomenon and damage the hydraulic components. Gear pump through its good suction performance, can effectively prevent air into the hydraulic system, to ensure the purity of the hydraulic oil, so as to improve the reliability and stability of the hydraulic system.