Time : 2024-12-12 Browse : 21
As an important branch of liquid transmission, hydraulic transmission uses a non-rigid connection device composed of multiple impellers to achieve two energy conversions - first converting mechanical energy into liquid kinetic energy, and then restoring liquid kinetic energy to mechanical energy to complete the power transmission process. It should be made clear that it is essentially different from hydraulic transmission: hydraulic transmission relies on liquid kinetic energy to transmit energy, while hydraulic transmission relies on liquid pressure to achieve power transmission.
Core Advantages of Hydraulic Transmission
I. Automatic adaptation to load changes
The hydraulic torque converter has significant automatic adaptability, and its output torque can be automatically adjusted with the increase or decrease of external load - when the load increases, the torque increases synchronously and the speed decreases accordingly, and vice versa when the load decreases, which can achieve stepless speed regulation in a wide range. This feature can reduce the number of gears in the vehicle transmission, simplify the operation process, effectively prevent the internal combustion engine from stalling, and improve the general performance of the equipment. Although the hydraulic coupling has the characteristics of automatic speed change, it does not have the function of automatic torque change.
II. Buffering shock and extending life
Since the impellers use liquid as the working medium and are non-rigidly connected, hydraulic transmission can effectively absorb the impact and vibration between the engine output end and the external load. This flexible transmission characteristic makes the machine start more smoothly, the acceleration process is uniform and gentle, reduces the rigid wear of mechanical parts, and significantly extends the service life of the equipment.
III. Optimize power matching performance
When the pump wheel speed is stable, the hydraulic elements show different permeability due to different types, that is, the degree of influence of load changes on the input shaft (pump wheel or engine shaft) torque is different. By selecting the appropriate hydraulic element, accurate power matching with the working machine can be achieved, further improving the power performance and economic efficiency of the equipment.
With these unique advantages, hydraulic transmission has shown important application value in various types of mechanical equipment and provides efficient and reliable solutions for industrial transmission systems.
