Description
The practical training system integrates the hydraulic, pneumatic, PLC electric control and hydraulic simulation technologies, which can not only satisfy the professional practical training teaching, but also conduct the skill evaluation and occupational skill competition, and cultivate the students in terms of the occupational abilities including the installation and commissioning of the hydraulic pump station, the assembly and commissioning of the hydraulic system, the installation and commissioning of the pneumatic system, the electric control technology, the PLC application technology and the operation and maintenance of the hydraulic and pneumatic system etc, by conducting the project-based practical training.
Feature
1. Close to the industrial site: the hydraulic pump station is designed according to the industrial standards, and the evaluation points are added; the hydraulic and pneumatic components of the domestic well-known brands are used, the hydraulic proportional valve and sandwich valve are used to connect the industrial application; the simulation device uses the industrially quintessential control device close to the actual application in the industry.
2. Flexible system combination: the modular structure design is used, and the independent operation can be realized between the modules, and several modules can also combine into an integrated control system that is convenient for the escalation and upgrade of the equipment.
3. Strong integration feature: the system integrates various industrially hydraulic and pneumatic components, relay control units and PLC control units, which is a quintessential general practical training equipment integrating the electric, hydraulic and pneumatic feature, which can not only satisfy the practical training teaching of the basic hydraulic and pneumatic system, but also complete the project training and occupational skill competition.
4. Strong practical operability: set up various practical assignments according to the relevant national occupational standards, industrial standards and position requirements, and improve the manual skills and employment abilities of the students actually by the Inquiry Based Science Education, with the occupational practice activity as the main line.
5. Low noise: integrate the motor and pump axis, and the oil tank and practical training platform are placed separately, which are connected with the high pressure hose to avoid the resonance between the vibration source and other mechanisms, and reduce the noise and vibration generated from the pump station significantly.
6. Strong security: with the current creepage protection and overcurrent protection that can prevent the equipments from being damaged by wrong operation; with the phase sequence protection, after the phase is broken or the phase sequence is changed, cut off the circuit power to prevent the motor from reverse rotation; the system is equipped with the super high voltage unloading protection function, in case of damaging the components and guarantee security.
The Control Panel of the Bench
1. Indicator: the yellow light, green light and red light on the left stand for the phase U, phase V and phase W, after the equipment is connected to the external power, these three lights are lit up. The green light and red light on the right stand for the normal operating equipment and wrong input phase sequence. Under normal condition, the green light is lit up while the air switch is closed.
2. Air switch: the control switch of the general power supply of the equipment.
3. The numeral display meter unit: integrating the power, temperature, pressure, displacement and flux. The transiting output voltage is 0-5 V.
4. Signal collection and feedback unit: the sensors with the aviation plugs including the temperature sensor, pressure sensor and displacement sensor etc can be connected with the signal collection and feedback unit conveniently, as well as the feedback signal.
5. Power section: output 24V DC power.
6. The control unit of the hydraulic pump station
7. The cross switch for the automatic operation and manual operation of the carrier: the section of the hydraulic driving force is controlled by PLC under automatic operation, and the the section of the hydraulic driving force is controlled by the control unit of the hydraulic pump station under the manual operation.
