TY-A Type Transparent Hydraulic Test Bench

I. Product Introduction

To quickly adapt to the development in various fields and cultivate a large number of technical workers, technicians, engineers proficient in the fundamental knowledge and practical skills of hydraulic transmission, and to send them to different fronts of socialist construction, our company has, based on the requirements of textbooks such as "Hydraulic Transmission," "Principles of Hydraulics," and "Mechanical Fundamentals," and considering the characteristics of domestic hydraulic components, referenced advanced foreign technology, and after years of effort and exploration, we have developed the TY-A type transparent hydraulic transmission experimental bench. This was achieved by relying on theory, using experimentation as a means, and employing high-precision machining processes to overcome the practical challenges associated with transparent thermoplastic plastics, such as their tendency to deform, poor mechanical strength, and the high surface finish and structural precision requirements of hydraulic components.

Mechanical requirements for hydraulic transmission vary widely, typically comprising basic functional circuits such as directional control, pressure control, speed control, and sequence control loops. The main frame of this experimental bench is meticulously crafted from 1.0mm cold-rolled steel plate, with a baked paint finish for both aesthetics and durability. Equipped with four high-quality swivel casters at the bottom, it is easy to move. The cabinet is divided into two parts below: the left side is for the hydraulic pump station, and the right side is a storage cabinet used for storing transparent hydraulic components.

Each hydraulic component uses an elastic card-type transition base, featuring an aesthetically pleasing and generous overall appearance, robust and durable structure, and easy operation. This demonstration system, through experimental demonstrations of the eighteen basic control circuits of the four fundamental functions (expanded experiments can reach 60 types), enables students to become familiar with the structures, performance, and applications of over twenty common hydraulic components. It helps students master the working processes and principles of ten basic circuits, enhances their ability to troubleshoot and solve problems, inspires interest through practical demonstrations, and can be used to conduct expansion experiments on other oil paths within the tolerances of the various components provided by this product (such as oil path design, graduation projects).

This hydraulic testing bench product references the characteristics of domestic hydraulic components, making it more suitable for domestic educational requirements. The system uses transparent hydraulic components, a combination card slot structure, movable oil path connectors, universal electrical wiring, and accessories. Following the experimental guidebook, it allows for convenient conducting of various common hydraulic transmission control experiments. It enables students to understand the principles, structure, and working process of oil paths and internal hydraulic components, making it an ideal equipment for hydraulic transmission teaching.

II. Main Technical Specifications

1. Working Power Supply:

220V 50Hz (Mains)   Two-phase ~ 220V ±10%

Rated Power: ≤1KW Rated Pressure: 0 ~ 1.0 Mpa

2. Lab Bench

Dimensions: 1500mm (Length) × 650mm (Width) × 1800mm (Height).

The package weight is approximately 150 kg.

3. Programmable Logic Controller (PLC)

Programmable Logic Controller (PLC): Standard with German Siemens S7-200 SMART SR20, 20 I/O points, relay output format.

Electrical control utilizes a DC 24V power source, solenoid valve output control port, proximity switch, wiring cables, power outlets, buttons, indicator lights, etc.

Standard brands are recommended by our company, and customers can select options according to their own needs. Considering the impact on price, we will further communicate and adjust your options.

4. Hydraulic Test Pump Station

Power Supply: AC 220V, Motor Power: 750W, Motor Speed: 0-1450 RPM

The pump is a low-pressure gear pump, model CB-B2.5, with a rated displacement of 2.5ml/rev.

Fuel Tank: Nominal capacity 40L; equipped with liquid level and oil temperature gauges, oil and filter, air filter, etc.

5. Demonstration Experiment

Flow rate requirements for the oil circuit only need a pressure of 0.3-0.5 Mpa (maximum oil pump pressure: Pmax = 1.2 Mpa)

III. Key Features:

The valve body is made of transparent organic glass material, allowing for a clear and easy observation of the internal structure and operation process of the hydraulic transmission unit.

2. Leak-proof quick plug interfaces make the assembly of the experimental circuit simple, quick, clean, and tidy. Each hydraulic component comes with an installation base, allowing for easy and arbitrary placement of hydraulic components on the aluminum alloy profile panel. The oil path uses an open/close type self-locking quick-change connector, making disassembly and connection convenient without oil leakage.

3. Independent component modules with convenient installation, featuring an aluminum alloy profile structure with "T-slot" operating panels, allow for the flexible combination of various experimental modules and the construction of diverse experimental circuits.

4. The maximum pressure-bearing capacity of the hydraulic components is 1.2 Mpa, with a rated working pressure of 0.8 Mpa, making it a safe low-pressure test system.

5. Programmed Logic Controller (PLC) control, optimizing the control scheme

6. Added configuration simulation software, enhancing functionality.

7. Enhanced with hydraulic simulation software, featuring virtual circuit assembly and fault detection capabilities.

IV. Lab Bench Functions:

Hydraulic Transmission Basic Circuit Experiment

1) Sequence action circuit controlled by proximity switch

2) Two-stage speed control loop

3) Three-way five-port manual directional valve reversing circuit

4) Multi-stage pressure regulating loop

5) Throttle valve oil flow throttling speed control circuit

6) Throttle Valve Return Flow Throttle Control Loop

7) Two-stage pressure regulating loop

8) Pressure Relief Valve's Pressure Reduction Circuit

9) Speed control valve series-connection speed transfer loop

10) Speed changeover circuit for parallel throttle valves

11) Three-way four-way solenoid valve (M-type) de-energizing circuit

12) Pilot-operated relief valve unload circuit

13) Sequential action circuit controlled by sequence valve

14) Sequence action circuit controlled by pressure relay

15) Sequence Valve's Balance Circuit

2. Programmable Logic Controller (PLC) electrical control experiment, a form of mechanical, electrical, and hydraulic integrated control experiment.

1) Learning of PLC instruction programming and ladder diagram programming

2) Learning and Utilization of PLC Programming Software

3) Communication between PLC and computer, online debugging and monitoring

4) Optimization of PLC control for hydraulic transmission

3. Excavator Simulation Kit (optional accessory)

1) Observation of hydraulic transmission component structures, disassembly and assembly, and analysis of the principles of hydraulic control systems.

2) Hydraulic Excavator Demonstration and Control Experiment

Excavation operations, involving simultaneous bucket and dipper arm working tests.

② Material discharge operation, boom and bucket operation, with the large arm capable of adjusting its position height simultaneously.

4. Loader Simulation Kit (optional accessory)

1) Observation of hydraulic transmission component structures, disassembly and assembly, as well as study and analysis of the principles of hydraulic control systems.

2) Hydraulic loading machinery demonstration and control experiment.

① Material loading operation, after the bucket is loaded, the arm cylinder extends to reverse the bucket, lifting the boom arm.

② Unloading operation, bucket unloading (retract the boom to turn the bucket), and lower the boom.

Additionally, we offer a variety of construction machinery simulators for your selection, including hydraulic loader simulators, small hydraulic forklift simulators, and small hydraulic crane simulators. Please call for more information.