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Isuzu compressed garbage trucks will make precise calculations based on the pressure and flow required by the hydraulic system, and determine the specifications of cylinders, valves, pumps, etc. Selection, installation and design are realized through different calculations.

1. Control analysis and flow chart design

When calculating the rated pressure in the hydraulic system of the Isuzu compressed garbage truck, the loading compartment is lifted to a certain position and then returned with a delay. At this time, it can ensure that all the garbage inside the compartment is dumped cleanly, and when the push plate is used for unloading , the filling compartment must be opened first and then dumped, otherwise the dumping cannot be completed. The scraper of the rear-mounted compression garbage truck swings out or the rear proximity switch is turned on to lower the skateboard. This realizes the filling cycle. If there are stones, metal hard objects, etc. in the garbage and the filling is overloaded, it is likely to cause a compression cycle.

2. Choose an appropriate electrical control system

When selecting a control system for Isuzu compressed garbage trucks, an integrated multi-circuit solenoid valve is used to configure the electronic control system to achieve sequential control. The start and stop action signals are sent out through the electric button, and then the electronic control method is divided into two main forms. The electronic control method of the first type realizes relay control by detecting the end point and starting point of the cylinder. In addition, a PLC programming control system is selected. Since there is a certain logical relationship between relay circuits, and these systems also need to be controlled through hardware wiring, when comparing the reliability of the two, PLC control appears to be more reliable.

3. Control loop design

As an important part of the electrical design, the Isuzu compressed garbage truck control circuit involves the manipulator circuit, scraper and skateboard circuit, push plate circuit, etc. The manipulator loop control is a sequential action, which can be effectively formulated in the structural design of the manipulator. The design is used as a linkage manipulator, and it is composed of cylinder drive and motion-completed garbage loading. These do not need to be controlled in the corresponding sequence.

The circuit design between the scraper and the skateboard is such that the garbage is loaded from less to more, and from loose to tight. During this period, the load often fluctuates greatly. When formulating the scraper and skateboard circuit plan, two sequence valves can be used together, and a one-way hydraulic lock can be equipped in the scraper cylinder oil circuit.

When designing the push plate circuit, the main purpose is to highlight its role as a chopping board for garbage compression. It is required that the push plate can be pushed forward and backward in the compression direction. This requires designing a rodless cavity at the position of the push plate cylinder, and then moving the rod cavity through the unit to the push plate. Replenish components. When the push plate cylinder retreats, back pressure must be required to achieve pressure compression. At this time, the load of the back pressure component needs to be increased. However, there is no set pressure on the back pressure component. There are different compression ratios for the garbage that can be realized, so it is necessary to formulate the An adjustable unloading valve is provided on the rod cavity.