Dyyy-CC transparent hydraulic forklift experimental device

Release time：2024-05-11 10:00viewed：times

1. Overview
Hydraulic forklift is a high-lift loading and unloading and short-distance transportation vehicle that does not produce sparks or electromagnetic fields. It is especially suitable for vehicle loading and unloading and the loading and unloading of flammable, explosive and fire-prohibited items in workshops, warehouses, docks, stations, freight yards and other places. This product has the characteristics of lifting balance, flexible rotation, and easy operation. Features such as easy operation. Forklifts are industrial transport vehicles , which refer to various wheeled transport vehicles that are used for loading, unloading, stacking and short-distance transportation of palletized goods.
2. Equipment composition
1. Hydraulic test bench (forklift hydraulic tr*ning bench ) is m*nly composed of tr*ning table, control panel, hydraulic components, electrical control components, programmable controller ( plc ) and other components.
2. The hydraulic tr*ning device is a modern teaching product that can transfer the structural principles of hydraulic forklifts to the classroom for learning. The forklift body is made of imported transparent organic glass, which is corrosion-resistant and wear-resistant. It does not discolor for a long time and is transparent and intuitive. , the demonstration effect is realistic.
2. The cabinet is made of 1MM thick SPCC cold-rolled board, which is strong and beautiful. The surface is made of medium-temperature phosphating anti-rust p*nt and electrostatic spraying.
3. The cabinet is equipped with four universal wheels to facilitate the transportation and disassembly of the equipment.
4. Equipped with all common hydraulic components: Each hydraulic component is equipped with a mounting base plate, which can conveniently and arbitrarily place the hydraulic components on the aluminum alloy profile panel (the panel has an aluminum alloy profile structure in the form of a "T" groove). The oil circuit overlap adopts quick-change joints, which are easy to disassemble and connect without oil leakage.
5. The electrical m*n control unit is controlled by PLC programmable controller, which can communicate with PC microcomputer to realize microcomputer intelligent control. At the same time, the hydraulic circuit is used as the control object to strengthen the learning and application of PLC control programmable controller.
6. The experimental control unit can also use an independent relay control unit for electrical control. Through comparison, the superiority and advancement of PLC programmable control will be highlighted, and the understanding and mastery of PLC programmer will be deepened.
3. Technical parameters
1. Power supply: AC220V 50HZ
2. DC power input AC220V output DC24V/3A
3. Programmable controller (PLC): Mitsubishi FX1S-20MR host 12 inputs and 8 outputs (relay output mode)
4. Hydraulic experimental pump motor Power: 250W, speed range 0-1500r/min, noise when the hydraulic pump is working ≤58dB, the required pressure of the oil flow in the demonstration experiment is only 0.3-1.3Mpa (maximum pressure of the oil pump: Pma=.5Mpa)
5. Electromagnetic commutation Valve: AC24V, suction 3Mpa
6. Tr*ning table dimensions: 1500mm×650mm×1750mm
7. Forklift tr*ning table dimensions: 750mm×650mm×1350mm

4. Practical tr*ning content
1. Understand the basic structure of a hydraulic forklift
2. Understand the transmission system of a hydraulic forklift
3. Learn the hydraulic system of a hydraulic forklift
4. Learn the manual control principle of a hydraulic forklift
5. Learn the automatic control principle of a hydraulic forklift
Experiment content:
1. Real demonstration of the rising movement of the hydraulic forklift
2. Real demonstration of the falling movement of the hydraulic forklift
3. Real demonstration of the forward tilting movement of the hydraulic forklift
4. Real demonstration of the backward tilting movement of the hydraulic forklift
5. Basic circuit experiment of hydraulic transmission
1) Use replacement Directional valve reversing circuit
2) Locking circuit using "O" type functional directional valve
3) Locking circuit using hydraulic control check valve
4) Pressure adjustment circuit
5) Secondary pressure circuit
6) Using pressure reducing valve Pressure reduction circuit
7) Pressurization circuit using a boosting cylinder
8) Unloading circuit using a reversing valve
9) Oil inlet throttle and speed regulating circuit
10) Return oil throttle and speed regulating circuit
11) Speed regulating gear pump speed regulating circuit
12 ) Composite speed regulating circuit of speed regulating gear pump and speed regulating valve
13) Speed switching circuit with short circuit of flow valve
14) Secondary feed circuit
15) Sequential action circuit using sequence valve
16) Sequential action circuit using pressure relay
17) Sequential action circuit of electric appliance’s stroke switch
18) Sequential action circuit of stroke valve
5. Virtual simulation tr*ning software
Hydraulic and pneumatic transmission design and control virtual simulation software
This software is developed based on unity3d. The software adopts the form of three-dimensional roaming and can be passed through The keyboard controls movement, and the mouse controls the camera direction. The interface has home page, help, full screen, component recognition, circuit construction, key component testing, and typical system testing interfaces.
1. Component identification adopts the form of automatic playback, which introduces the m*lbox, liquid level gauge, oil pump unit on the equipment (the pop-up hydraulic symbols, principles and introduction are introduced here, click OK to enter the next introduction), valve frame, and pressure gauge. , sensors , etc.
2. The disassembly and assembly of components is divided into learning mode and assessment mode. There are built-in electromagnetic reversing valves, plate relief valves, plunger pumps, filter valves, and electro-hydraulic servo valves. In the learning mode, the disassembly sequence is prompted and highlighted. There are no prompts for disassembly and installation in assessment mode. If the disassembly and assembly sequence is wrong, the next step of disassembly and assembly will no longer be possible. The toolbar is equipped with draggable seals, pumps, valves, oil filters, hex wrenches, pipe wrenches, adjustable wrenches, dead wrenches, and M5 screws.
3. The hydraulic components are equipped with one-way valve (hydraulic control, poppet valve core, ball valve core), m*n structure of the reversing valve (O type, Y type, H type), hydraulic cylinder (assembled plunger, double-acting single outlet rod) , double-action double-output rod, single-action double-output rod, single-action single-output rod), etc. Each construction experiment adopts a graphical method and is constructed by dragging the set graphics. In the graphics library There are confusing graphics.
4. Hydraulic selection is based on the hydraulic schematic diagram, and then selects the nominal displacement of the pump (12 items, including 11 confusing items) and pressure level (5 items, including 4 confusing items), and the selection of the solenoid relief valve (3 specifications, 3 pressure levels, and 3 flow levels, all of which have confusing items), oil filter selection (multiple choices include confusing items), servo valve selection (multiple choices include confusing items), and the wrong selection system will Automatically prompt the correct answer. After selecting, drag the corresponding tool to the highlighted area according to the prompt.
5. Circuit inspection is done by selecting the correct accessories, including the selection of sealing rings, checking valve switches, etc. Then proceed to the next step to turn on the machine. Follow the prompts to turn on the machine. After turning on the machine, enter the monitoring interface. Turn on the equipment one by one according to the prompts. The prompts are in the form of text and button highlighting.
6. Hydraulic cylinder pressure test Enter the experiment through the test button on the background interface and gradually analyze To start friction test, start friction force, parameter setting, start test, draw curve, stop test.
7. Typical system tests are divided into trial operation, stage response test and frequency response test. The above tests are all conducted through the background monitoring interface.
8. The software must be able to rotate, zoom in and out in all directions to view its det*ls. And the same platform as a whole cannot be displayed as separate resources.
Microcontroller , PLC programmable design and control virtual simulation software.
This software is developed based on unity3d. It has built-in task books and experimental prompts. It adopts the form of three-dimensional roaming. Movement can be controlled through the keyboard, the mouse controls the direction of the lens, and the mouse wheel controls the distance of the screen, 360 degrees. Rotating, three-dimensional wall p*nted with electrical diagrams.
1. Equipment component assembly: Follow the highlighted prompts to find the component control rack. You can drag components from the component library according to the electrical component layout diagram and place them on the component control rack. The component library is equipped with control panels, switching power supplies, micro relays, and PLCs. , frequency converter, stepper motor, AC motor, servo motor, servo driver, stepper driver, interface board, operation panel, circuit breaker, servo motor interface, digital display voltmeter, there will be a prompt when the selection is wrong.
2. Technical indicator measurement: Select the multimeter to check the servo motor connection cable and the servo driver with BOP panel. Adjust the left and right buttons to the ohm level, drag the black and red test leads and insert them into the R, S, T, U, V, W and ground phases respectively for testing. For resistance value, according to the highlighted prompt, find the power switch in the scene, drag the pen or multimeter to measure whether the power is on.
3) Electrical component connection: According to the electrical wiring diagram, connect the power line and control line, highlight the interface, connect the driver, interface board, power line, servo motor, encoder, PLC, and relay in order, and turn on the m*n power supply After turning on the switch, servo power switch, and faulty circuit switch, a fault code will be prompted, and you can select the cause of the fault from three items.
4) Parameter adjustment test: Turn on the power to adjust the speed, set the driver parameters according to the requirements of the mission statement, perform inching control/analog speed adjustment/multi-stage speed control, and observe the three-dimensional servo motor motion control. Select any of the 6 PLC programs and then adjust the servo drive analog speed. The PLC parameters are adjustable. Set the drive parameters and enter the three-dimensional servo motor motion control interface and electrical display interface. The operation panel is equipped with servo start, low speed, medium Speed, high speed, servo stop, torque limit, abnormal reset, forward/reverse rotation selection, 0-10 sliding control (the electrical panel displays the value in real time).
5) Inspect the three-dimensional virtual simulation machine of the servo system mask machine, observe its structure, inject fault points, select multiple fault causes, and locate faults. Connect the fault causes with the corresponding detection and positioning methods, and troubleshoot after selecting the correct ones. Connect the cause of the f*lure with the corresponding solution.
6) Control process plan, optional single machine mode and online mode of inching control/analog speed regulation/multi-stage speed regulation control, call up the control panel, display the operation of 3 production lines, perform real-time control, optional inching, low and medium High speed, start and stop control, adjustable speed. According to the control plan, the system automatically determines the performance of the production line and submits a disclosure record.
6. Configuration table

serial number	Name	model	quantity	Remark
1	Tr*ning table	ZRYY-CC	1 piece
2	Control panel	ZRYY-CC	1 set
3	Forklift tr*ning bench		1 set
4	PLC host module	Mitsubishi FX1S-20MR	1 piece
5	Power module		1 piece
6	Relay control module		1 piece
7	PLC control button module		1 piece
8	Tilt cylinder	Transparent components	2
9	Lifting cylinder	Transparent components	1
10	Fork	Engineering plastic processing parts	2
11	fork	Engineering plastic processing parts	1
12	Inner mast	Engineering plastic processing parts	1
13	Lifting ch*n		2 pieces
14	guide pulley		1 set
15	Two-position two-way solenoid directional valve	Transparent components	1
16	Three-position four-way solenoid directional valve (O type)	Transparent components	2
17	Pilot operated relief valve	Transparent components	1
18	tee joint	Transparent components	5
19	Four-way connector	Transparent components	2
20	pressure gauge	Transparent components	2
twenty one	Transparent hydraulic hose		10 m
twenty two	Solenoid valve universal connection line		2 pieces
twenty three	Pump unit	Pumping station system	1 set
twenty four	L-HL46 hydraulic oil		5kg
25	programming cable	Mitsubishi	1 item
26	Quick oil connector		2
27	Forklift Hydraulic Tr*ning Instructions		1 volume
28	CD (PLC programming software, program software)		1 plate
29	tool		1 set

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