The loader's load-sensing transmission control system can shorten work cycles, reduce fuel consumption by up to 15%, improve work efficiency and economy, and reduce shifting shock caused by changes in driving direction or shifting gears at high engine speeds, thus reducing driver fatigue.
The linkage mechanism can withstand extremely high torque loads, possessing excellent reliability, durability, and similar operating performance to parallel lifting mechanisms. The working device can lift or lower materials placed on the pallet in a horizontal position and can be equipped with various working devices, minimizing the driver's adjustment of the bucket tilt angle from the ground to the maximum height.
After 3000 hours of operation, the loader will experience vibration in the dashboard and cab, and the vibration will become increasingly severe, eventually affecting the cab and the entire machine. This vibration causes inaccurate material weighing and renders the machine unusable. What are the causes of this vibration?
1. The loader's hydraulic system uses a steering-priority method, where the pressure oil output from the steering pump and the working pump merges to supply oil to the working device. 1. The working pump only bears load when the working device is activated, while the steering pump bears load not only when the working device is activated but also when steering. Therefore, the steering pump operates for a relatively longer period and experiences greater wear.
2. Under the combined action of the priority valve body, valve core, pressure regulating spring, and pressure oil, the EF port of the loader opens and closes at a certain frequency, causing vibration at a specific frequency. Because this vibration is close to the natural vibration frequency of the instrument panel and cab, it causes resonance in the instrument panel and cab.
