Hydraulic Comprehensive Test Bench 5985SAOZ

I. Technical parameters:
1. Input power supply voltage: three-wire five-wire AC220-380V± 10% 50HZ;
2. Module and component DC voltage: DC24V, 4.5A;
3. Operating environment: temperature -10℃~+40℃ relative humidity <85% (25℃) altitude <4000m;
4. System total power: <=3.5KW;
5. Product size: test bench size length × width × height ≥1500*600*1850mm;
6. Net weight: about 220kg;
7. Hydraulic pump group: equipped with hydraulic oil pump and drive motor, oil tank nominal capacity 45L; pump group power 1.5KW, rated pressure 6.3 Mpar, nominal displacement 6.67mL/r, volumetric efficiency 90%;
8. PLC programmable controller: Mitsubishi fx series programmable controller, relay form.
II. Main functions of the experimental bench
1. All hydraulic valves must use advanced Bosch Rexroth technology hydraulic components, and the performance parameters fully meet the requirements of the syllabus and fully meet the industrial application standards. Refer to the design standards such as JB/JQ20233-88, and the training panel of the original equipment in the training room
The lap size is universal, the hydraulic joint size is the same and interchangeable, and the valve bottom oil block hook matches. Free technical service is provided for old equipment, including but not limited to repair, cleaning, maintenance and other work;
2. The excavator mechanism of engineering machinery is used as a supplementary execution system. The boom, dipper rod and bucket part of the excavator mechanism shall not be made of hard plastic or plexiglass materials for durability. They shall be made of all-metal steel plates, proportionally scaled, and exquisitely crafted. (A demonstration video showing the composition and working process of the excavator mechanism will be provided at the bidding site);
3. The electrical control needs to adopt the new generation of RLAY-OUT-1 integrated board (electrical integrated circuit, not data acquisition card). The board has more than 10 input and output channels, without complicated wiring. The overall electrical system is more stable and easier to maintain and troubleshoot later.
4. The equipment has various control methods, which can realize the combination of mechanical control, relay control, PLC automatic control, host computer configuration control, compound control and other control technologies;
5. The software can achieve visual hydraulic simulation control circuit, directly reflect the working status of the hydraulic circuit, the working status of the PLC and the internal structure principle of each hydraulic component, and directly communicate with the host computer to control the hardware circuit in real time; multi-domain discipline system modeling hydraulic software can perform multi-dimensional virtual design and assembly of the electromechanical and hydraulic integrated system.
6. Training functions:
a. Experimental fluid for understanding the working principle of standard series hydraulic components
b. Experimental test of hydraulic component performance;
c. Demonstration of hydraulic circuit configuration screen and control experiment; Experimental test of basic hydraulic transmission circuit: Basic pressure control circuit;
(single-stage pressure regulation, multi-stage pressure regulation, pressure reduction, balance, pressure maintenance, pressure relief and other circuits), speed control circuit; (throttle valve, speed regulating valve, differential, volumetric, compound and other speed regulating circuits), one-way synchronous circuit; (synchronous circuit controlled by throttle valve and speed regulating valve), direction control circuit; (reversing circuit controlled by reversing valve), sequential action circuit; (sequential action circuit controlled by pressure relay, travel switch, sequential valve, etc.), locking circuit. (Lock circuit controlled by hydraulically controlled one-way valve, O/M type reversing valve, one-way valve, etc.);
d. (1) Pressure control circuit experiment;
A. Pressure limiting circuit:
B. Voltage changing circuit:
C. Unloading circuit:
D. Voltage stabilizing circuit:
E. Unloading circuit:
F. Pressure reducing circuit
(2) Speed control circuit experiment;
A. Speed regulating circuit:
B. Synchronous circuit:
(3) Direction control circuit experiment;
A. Reversing circuit:
B. Locking circuit:
C. Sequential circuit:
D. Balance circuit:
E. Buffer circuit:
(4) There are dozens of other scalable hydraulic circuit experiments
7. The upper computer software can provide the device with software and hardware communication and real-time control functions;
8. Cultural wall construction: (It shall not be made of cloth materials, and a sample shall be brought to the bidding site) The display content shall be related to the teaching content of this equipment, and shall not be less than 5 The display content shall be presented in color high-definition pictures, virtual three-dimensional sectional views and text introductions. The display content must include the schematic diagram of the axial clearance compensation device, the principle diagram of the clearance compensation of the floating sleeve type, the principle diagram of the clearance compensation of the floating side plate type, the principle diagram of the clearance compensation of the flexible side plate type, the installation method of the double-acting single piston cylinder hydraulic cylinder, the cylinder body fixation, the piston cylinder fixation, the working principle of the gear pump, the oil trapped phenomenon of the gear pump, the dead volume schematic diagram, the minimum dead volume, the maximum dead volume, the oil trapped unloading groove of the gear pump, the symmetrical double rectangular unloading groove, the asymmetrical double rectangular unloading groove, the calculation diagram of the pressure difference and the shear flow leakage flow, etc. The size shall not be less than 0.5*0.7m-1.0*0.7m, and it shall be framed in the form of an organic transparent backboard and an outer surface light-transmitting (acrylic board, etc.) cover. The overall appearance is neat and beautiful. The display content shall include the type, schematic diagram, working characteristics, schematic diagram, etc.
9. The simulation resources of hydraulic valve pump components are different and there shall be no overlapping content.
No less than 100 types (must have features such as dynamics and 3D explosions, and demonstrations must be provided on site);