Dyyy-DC Transparent Hydraulic Hydraulic Experimental Device

Release time：2024-05-11 08:30viewed：times

1. Overview
A crane is a self-propelled lifting machine that uses a tire-type base vehicle as a carrier and is equipped with lifting equipment working devices and operating mechanisms . It is a widely used type of engineering machinery . Also known as a crane, it is a type of lifting and transportation machinery. Hydraulic crane is a self-propelled lifting machine that uses a tire-type basic vehicle as a carrier and is equipped with lifting equipment working devices and operating mechanisms. It is a widely used equipment in engineering machinery. It is suitable for large-scale field construction projects, such as construction sites , Construction, road construction, hydraulic engineering, national defense engineering and other industries. The hydraulic test bench has the advantages of small size, light weight, easy operation and long-distance control. Its purpose is to guide students to engage in positive thinking, innovative design, and cultivate students' comprehensive design ability and practical hands-on ability. It is a new type of comprehensive tr*ning equipment.
2. Equipment composition
1. It is m*nly composed of crane tr*ning platform , hydraulic pump station, hydraulic components, various control devices, programmable controller ( plc ) and other components.
2. The tr*ning table and tr*ning platform are made of iron with a double-layer matt dense pattern spray-p*nted structure.
3. It can simulate various actions of real crane working devices. The hydraulic system is made of imported transparent plexiglass hydraulic components and transparent nylon hoses. The structure and working principle of the hydraulic components and the working principle of the hydraulic circuit are clear at a glance. The entire tr*ning platform has the advantages of image, intuitiveness, convenience and reliability.
4. Equipped with all commonly used 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 tr*ning 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. Overall dimensions of the experimental bench: 1500×700×1800mm (length×width×height)
2. Overall dimensions of the demonstration bench: 700×700×1330mm (length×width×height)
3. Power supply: 220V 50Hz (city Electricity)
4. Hydraulic experimental pump station 500×350×300mm (length×width×height)
5. Working power supply: AC: 220V permanent magnet speed-regulating motor , speed range: 0-1500 rpm
6. Safety speed limit range : 1-1500 rpm When the hydraulic pump is working, the noise at a distance of 1.5m from the hydraulic platform is ≤58dB
7. The required pressure of the oil flow in the demonstration experiment is only 0.3-0.5Mpa (maximum pressure of the oil pump: Pmax=1.5Mpa)
8. Hydraulic When the pump is working, the noise at a distance of 1.5m from the hydraulic platform is ≤58dB.
4. Practical tr*ning content
1) Understand the basic structure of the crane
2) Understand the transmission system of the crane
3) Learn the hydraulic system of the crane
4) Learn the manual control principle of the crane
5) Learn the automatic control principle of the crane
Experiment content:
1. Crane mechanism and Observation of working principles, disassembly and assembly tr*ning;
2. Knowledge and understanding of hydraulic industrial application fields;
3. Overlap tr*ning of hydraulic circuits;
4. Hoisting machinery demonstration control tr*ning;
  (1) M*n arm lifting and lowering control Operation tr*ning;
  (2) M*n arm extension and retraction control operation tr*ning;
  (3) Hook upward and downward motion control operation tr*ning;
5. PLC automatic control operation tr*ning;
6. PLC programmable control tr*ning;
7. Basic circuit experiment of hydraulic transmission
1) The reversing circuit using the reversing valve
2) The blocking circuit using the "O" type functional reversing valve
3) The blocking circuit using the hydraulic control check valve
4) The pressure adjustment circuit
5 ) Secondary pressure circuit
6) Pressure reducing circuit using a pressure reducing valve
7) Pressurizing circuit using a pressurizing cylinder
8) Unloading circuit using a reversing valve
9) Inlet throttle speed regulation circuit
10) Return oil throttle regulation Speed 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) Using sequence valve Sequential action circuit
16) Sequential action circuit using pressure relay
17) Sequential action circuit using electrical stroke switch
18) Sequential action circuit using 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. Movement can be controlled by the keyboard and the lens direction can be controlled by the mouse. The interface has homepage, help, full screen, and components. Cognition, loop construction, key component testing, typical system testing interface.
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 platform		1 set
2.	Tr*ning table		1 set
3.	Transparent crane tr*ning platform		1 set
4.	PLC host module	Mitsubishi FX1S-20MR	1 piece
5.	Power module		1 piece
6.	PLC control button module		1 piece
7.	Relay control module		1 piece
8.	Motor		1
9.	gear pumps		1
10.	tank		1
11.	Lifting cylinder	Transparent components	1
12.	M*n arm cylinder	Transparent components	1
13.	Three-position four-way solenoid directional valve	Transparent components	3
14.	m*n boom	Organic glass processing parts	1 item
15.	telescopic arm	Organic glass processing parts	2 pieces
16.	Base	Organic glass processing parts	1 item
17.	base bracket	Organic glass processing parts	1 set
18.	oil pipe	Transparent leather tube	10 m
19.	Lift drum motor		1
20.	Hook		1 set
twenty one.	L-HL46 hydraulic oil		5KG
twenty two.	tool		1 set

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