Liugong 860H 11C2434 hydraulic gear pump is a key hydraulic component for its 860H loader produced by Liugong. The hydraulic gear pump is mainly used to provide power for the hydraulic system and drive various actions of the loader, such as lifting, dumping and steering.
1. Function and use
Core function: The gear pump transfers hydraulic oil from the oil tank to the hydraulic system through the rotation of the meshing gears, generates high-pressure oil, drives actuators such as hydraulic cylinders and hydraulic motors, and thus realizes various actions of mechanical equipment.
Main use: This type of gear pump is mainly used in the hydraulic system of the loader to ensure smooth and reliable operation of the equipment.
2. Technical parameters
Pump model: 11C2434
Applicable model: Liugong 860H loader
Maximum working pressure: Under normal circumstances, the working pressure range of the hydraulic gear pump is 200 to 250 bar (specific data may be adjusted according to configuration and working conditions).
Flow rate: The flow rate of the hydraulic pump is usually in liters per minute. The specific flow rate should be referred to the equipment manual or the manufacturer's technical documentation.
3. Structural features
Gear meshing design: The hydraulic oil flows through the rotation of a pair of meshing gears, which is simple, durable and suitable for high-pressure working environments.
Good sealing: High-quality sealing components are used to prevent hydraulic oil leakage and improve the efficiency and service life of the pump.
Easy maintenance: The gear pump has a relatively simple structure, low failure rate, and is easy to maintain and replace.
4. Working principle
When the hydraulic gear pump is working, the two gears rotate through meshing, and the closed volume formed between the gears sucks hydraulic oil from the oil inlet and squeezes the hydraulic oil to the oil outlet to generate the pressure required by the hydraulic system. The output flow and pressure of the pump are mainly determined by the speed and load.
5. Installation and maintenance
Installation requirements: Ensure the sealing of the connection between the gear pump and the hydraulic system, and avoid any gas entering the hydraulic system.
Daily maintenance: Regularly check the cleanliness and liquid level of the oil, replace the hydraulic oil and clean the filter element in time to prevent oil contamination from wearing the gear pump.
Inspection and maintenance: The hydraulic pump should avoid overload during operation, maintain a reasonable working pressure and temperature range, and prevent the hydraulic oil from overheating and causing damage to the pump.
6. Common faults and troubleshooting
Insufficient oil pressure: may be caused by internal wear of the pump, damage to the seal, or blockage of the oil inlet. It is necessary to check the wear degree of the pump and the smoothness of the oil circuit.
Excessive noise: may be caused by bubbles entering the hydraulic system. It is necessary to check the oil tank level and sealing condition.
Oil leakage: Aging of the seal or cracking of the pump housing will cause leakage. The seal should be replaced or the pump housing should be repaired in time.
7. Replacement and maintenance cycle
Depending on the operating conditions and working hours, it is usually recommended to inspect and replace the hydraulic pump as necessary within a working cycle of 2000-3000 hours. Hydraulic oil and filter elements should be replaced regularly to ensure the normal operation of the hydraulic system.
This model of hydraulic gear pump is the core component of the hydraulic system of Liugong 860H loader. Ensuring that it is in good condition is crucial for the efficient operation of the equipment.