What happened to the abnormal load of the loader?

Sep 30, 2019

The load-sensing variable speed control system processes various data collected from the engine throttle, torque converter, and gearbox, and then generates an electrical signal that automatically shifts the gearbox when appropriate, further reducing the downtime loader. The load-sensing variable speed control system can shorten the operation cycle, reduce the fuel consumption rate by 15%, improve the work efficiency and work economy, and reduce the shift shock caused by the change of driving direction or the shifting of the engine at high speed, reducing the driver. Work fatigue.

The loader load sensing system reduces the load on the loader to an alarming level. The loader is equipped with an electronic servo control and information system consisting of a liquid crystal display and a keyboard for displaying and recording various information. The function records the machine fault and stores all relevant information. The anti-theft computer management and monitoring through coding is an important symbol of the development of foreign loaders in the 1990s. The computer management monitoring system can continuously manage/monitor dozens of parameters of the loader, with fault diagnosis and The alarm function can record and process various information of the loader operation, and can display the working state of the component with the liquid crystal display. The link mechanism can withstand extreme torque load, and has excellent reliability, durability and parallel lifting mechanism phase. A similar work performance work unit can raise or lower the material placed on the pallet in a horizontal position, and can be equipped with a variety of operating devices to minimize the adjustment of the bucket tilt angle from the ground to the maximum height. After the loader has been working for 3,000 hours, the instrument panel and the cab will be shaken, and the jitter will become more and more serious, and the cab and the whole machine will also be shaken. The phenomenon of jitter caused the weighing of the machine material to be inaccurate and could not be used normally.

The following technical staff will give you an analysis of the causes of the jitter? 1. The hydraulic system of the loader adopts the steering priority mode, and the pressure oil outputted by the steering pump and the pressure oil outputted by the working pump are combined to supply oil to the working device. The working pump only bears the load when the working device is in operation, and the steering pump not only bears the load when the working device is operated, but also bears the load during the steering, so the steering pump has a relatively long working time and a large wear. 2. Under the joint action of the priority valve body, the valve core, the pressure regulating spring and the pressure oil, the EF port is opened and closed according to a certain frequency, and a certain frequency of vibration occurs. Since the vibration is close to the natural vibration frequency of the instrument panel and the cab, the instrument panel and the cab resonate.