DYYPL-01A Transparent Hydraulic Transmission Training Device

1. Power supply: AC220V 50Hz

2. DC power supply: input AC220V and output DC24V/2A

3. Hydraulic experimental oil pump motor power: 250W, equipped with a dedicated motor speed regulator, speed range: 0-1700r/min

4. During experimental work, the noise 1.5m away from the hydraulic test bench is ≤58dB.

5. The experimental oil flow pressure requirement is 0.5-1Mpa (maximum pressure of oil pump: Pmax=2.5Mpa)

6. Electromagnetic reversing valve: DC24V, suction power 30N

7. Experimental bench dimensions: 1330mm×650mm×1750mm

8. Virtual multimeter parameters:

AC voltage ranges: 10, 50, 250, 1000

DC voltage range points: 0.25, 1, 2.5, 10, 50, 250, 1000

Ohm scale: x1, x10, 100, 1000, 1K, x10K, x100K

Ammeter gears: 50μa, 0.5, 5, 50, 500

BATT: 1.2-3.6V, RL=12Ω

BUZZ：R×3

Infrared emission detection function: vertical angle ±15°, distance 1-30cm

Transistor measuring hole

2. Main features

1. The transparent hydraulic transmission demonstration system is mainly composed of experimental tables, experimental benches, hydraulic components and electrical control devices.

2. The experimental table and platform are made of iron with a double-layer matt dense pattern spray-painted structure, and hydraulic components, etc. are stored in the experimental table cabinet.

3. Prepare 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.

4. The experimental components are all made of transparent organic materials, making it easy to understand the structure, performance and use of dozens of commonly used hydraulic components. Master the working principles of dozens of basic circuits and assemble circuits for experiments quickly and conveniently.

5. The experimental control unit uses an independent relay control unit for electrical control.

6. 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 home page, help, full screen, component recognition, circuit construction, key component testing, and typical system testing interfaces.

6.1 Component identification adopts the form of automatic playback, which introduces the mailbox, 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, pressure gauge, Sensors, etc.

6.2 Component disassembly and assembly are 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. In the assessment mode, disassembly is performed. There is no prompt for installation. If the disassembly and assembly sequence is wrong, the next step of disassembly and assembly will not be possible. The toolbar is equipped with draggable seals, pumps, valves, oil filters, hex wrenches, pipe wrenches, adjustable wrenches, dead wrenches, and M5 screws.

6.3 The hydraulic components are equipped with one-way valve (hydraulic control, poppet valve core, ball valve core), main structure of the reversing valve (O type, Y type, H type), hydraulic cylinder (assembled plunger, double-acting single outlet rod, The construction of double-acting double-output rod, single-acting double-output rod, single-acting single-output rod), etc., each construction experiment adopts a graphical method, and is constructed by dragging the set graphics. There are Confusing graphics.

6.4 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 electromagnetic relief valve (3 items specifications, 3 image 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 system will automatically Prompt for the correct answer. After selecting, drag the corresponding tool to the highlighted area according to the prompt.

6.5 Loop 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 computer. Follow the prompts to turn on the computer. After turning on the computer, enter the monitoring interface. Turn on the devices one by one according to the prompts. The prompts are in the form of text and button highlights.

6.6 Hydraulic cylinder pressure test Enter the experiment through the test button on the background interface, which is gradually divided into starting friction test, starting friction force, parameter setting, starting test, drawing curve, and stopping test.

6.7 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.

6.8 The software must be able to rotate, zoom in and out in all directions to view its details. And the same platform as a whole cannot be displayed as separate resources.

3. Reversing circuit for basic hydraulic experiments

1. Use the reversing circuit of the manual reversing valve.

2. Use the locking circuit of the reversing valve with neutral position function.

3. Use the locking circuit of the hydraulically controlled horizontal valve.

4. Pressure setting circuit.

5. Secondary pressure control circuit.

6. Use the pressure reducing circuit of the pressure reducing valve.

7. Use the booster circuit of the booster cylinder.

8. Use the unloading circuit of the H-type reversing valve.

9. Oil inlet throttle speed regulating circuit.

10. Oil return throttle and speed regulating circuit.

11. The reversing speed regulating circuit of the speed regulating gear pump.

12. A composite speed regulating circuit composed of a speed regulating gear pump and a speed regulating valve.

13. Speed ​​switching circuit with short circuit of flow valve.

14. Use the secondary feed path connected in series with the speed control valve.

15. Use the same secondary feed path with speed control valve in parallel.

16. Use the sequence action circuit of the sequence valve.

17. Use a pressure relay sequence action circuit.

18. Sequential action loop controlled by travel switch.

19. Use the sequential action circuit of the stroke reversing valve.

20. Synchronous circuit of series hydraulic cylinders.

21. A reversing circuit controlled by a pilot relief valve.

5. Transparent hydraulic configuration list