Transparent hydraulic bulldozer training device

Hydraulic forklift is a kind of high -rise, unloading and short -range transportation dual -use vehicles, because no spark and electromagnetic field are produced. Special suitable for the loading and unloading and unloading transportation of flammable, explosive and fire -prohibited items in car loading and unloading and workshops, warehouses, docks, stations, freight yards and other places. This product has the characteristics of lift and balance, flexible rotation, and convenient operation. The characteristics of convenient operation. Forklift is an industrial handling vehicle, which refers to various wheel -type transport vehicles that load, unload, stack and short -range transportation operations for the tray cargo.

2. Equipment composition

1. The hydraulic experimental table (forklift hydraulic tr--ning desk) is m--nly composed of components such as tr--ning tables, control screens, hydraulic components and electrical control devices, and programmable controllers (PLC).

2. Hydraulic tr--ning device is a modern teaching product that can move the structural principle of hydraulic forklift to learn in the classroom. The forklift body is made of imported transparent organic glass. The demonstration effect is realistic.

2. The cabinet is made of a 1mm thick SPCC cold plate. It is strong and beautiful. The surface is used in medium temperature phosphorus rust and anti -rust p--nt, and electrostatic spraying.

3. The cabinet is equipped with four universal wheels to facilitate the moving and disassembly of the equipment.

4. Equipped with all -usable hydraulic elements: Each hydraulic element is equipped with a installation bottom plate, which can be convenient and randomly placed on the aluminum alloy panel (the panel with the structure of aluminum alloy profile in the form of the "T" groove). The oil circuit is overlapped with a fast conversion. It is convenient for disassembly and does not leak oil.

5. The m--n control unit of the electrical control unit is controlled by the PLC programming program controller. It can implement the microcomputer intelligent control with the PC microcomputer communication. At the same time, the hydraulic circuit is used as the control object to strengthen the learning and application of the PLC control programmable order controller.

6. The experimental control unit can also use an independent relay control unit for electrical control. Through comparison, it highlights the superiority and advancement of PLC programming program control, and deepen the understanding and mastering of the PLC programmer.

I. Overview

Refrigeration equipment and PLC control tr--ning assessment devices are products developed and developed in accordance with the teaching requirements of the Ministry of Education's "Revitalizing the 21st Century Vocational Education Course Reform and Teaching Material Construction Plan" in accordance with the teaching and tr--ning requirements of vocational schools.

This device is suitable for the installation and m--ntenance and m--ntenance of mechanical and electrical equipment in colleges, secondary vocational schools and undergraduate colleges, electromechanical technology applications, electrical operation and control, electrical technology applications, motor and electrical appliances, refrigeration and --r -conditioning equipment, etc. "*r Conditioning Machine and Equipment", "Installation and M--ntenance of Refrigeration and *r Conditioning Device", "Refrigeration and *r Conditioning Automation", "*r Conditioning and Technical Application", "Cold Store Engineering and Operation Management", "Cold Refrigeration Craft" Intermediate and ** workers' appr--sal and assessment.

2. Device characteristics

1. The tr--ning device has power drag control, PC control, and touch screen control control methods, with temperature sensors and collection modules, and can be collected.

2. Strong intuition: The device adopts an open design, the control circuit and the refrigeration pipeline system are directly displayed, and the device has a name logo. Students can intuitively understand various devices.

3. Strong tr--ning: The actual refrigerator circuit can control the full -process work tr--ning of the automated tr--ning refrigeration system and the frost system.

Third, basic configuration and function

The tr--ning device is m--nly composed of console, host tr--ning module, temperature and sensor collection module and tr--ning module, etc.

1. Power control part

(1) AC power supply: Provide a three -phase AC power supply required to control the screen work, which can be controlled by the power source switch. Equipped with three pointer AC voltage tables, indicate the voltage value of the three -phase grid grid.

(2) Safety protection system: There are voltage leakage protection, current leakage protection, overcurrent protection, overload protection, grounding protection, and can effectively protect personal and equipment.

2. gauge

(1) Pointer voltage table: range of 0 ～ 450V

(2) Adopt PT100 sensor, measurement range -50 ~ 150 ℃

3. Constitution tr--ning module: configure upgraded version of the host, supporting PC/PPI programming cable. Solid PLC tr--ning and touch screen tr--ning can be performed; software users can perform secondary development through configuration software, and simulation is used to connect PLC.

4. Touch screen practical tr--ning module: Configure the 7-inch STN256 color touch screen, an RS-485 communication port (with PLC communication), a RS-232 communication port