The Rubber Bushing Tension-Torsion Dual-Channel Fatigue Testing Machine is a specialized testing sys
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Email : info@qinsun-lab.com
The Rubber Bushing Tension-Torsion Dual-Channel Fatigue Testing Machine is a specialized testing system designed for fatigue durability testing of rubber bushings.The test system mainly consists of a swing loading system, radial servo loading system, torque measurement and control system, angle measurement and control system, load and displacement measurement and control system, and other components. The computer control software is developed in C++, providing excellent flexibility, scalability, and expandability.
The Rubber Bushing Tension-Torsion Dual-Channel Fatigue Testing Machine is mainly applied in:
Automotive rubber bushing fatigue durability testing
Suspension system component testing
Rubber vibration isolation component evaluation
Metal and non-metal component torsion testing
Product development and quality inspection
The equipment complies with the following standards:
GB/T 10128-1998 — Metallic Materials — Torsion Test Method at Room Temperature
GB/T 10128-2023 — Metallic Materials — Torsion Test Method at Room Temperature
1. Radial Loading System
| Item | Specification |
|---|---|
| Radial Loading Force | 0–120 kN |
| Radial Force Measurement Accuracy | 1% FS |
| Servo Cylinder Stroke | 0–100 mm |
| Radial Displacement Measurement Accuracy | 1% FS |
| Radial Loading Control Mode | Load / Displacement |
2. Torsional Oscillation Loading System
| Item | Specification |
|---|---|
| Static Torque Measurement Range | 2000 N·m (Static) |
| Swing Loading Frequency | 0.1–10 Hz |
| Swing Angle | ±45° |
| Torque Measurement Accuracy | 1% FS (Static) |
| Swing Operating Frequency | 0.1–10 Hz |
| Swing Angle Resolution | 0.05° (Static) |
| Swing Angle Accuracy | 1% FS (Static) |
| Loading Waveform | Sine Wave, Triangle Wave, etc. |
| Swing Control Mode | Torque / Rotation Angle |
Professional Test Software
Chinese-language test software based on the Windows platform.
Supports automatic test data acquisition, processing, and analysis.
Real-Time Data Processing
Real-time acquisition and calculation of test data.
Displays test results in real time and supports automatic printing of test reports.
Advanced Curve Analysis Function
Allows point-by-point curve data access through mouse operation.
The torque-angle curve can display the relationship between torque and rotation angle at any point.
Supports local curve magnification and restoration for detailed analysis.
Automatic Zero Calibration
Torque and angle measurement channels can be manually or automatically zeroed at any time according to requirements.
Automatic Data Storage
Automatically saves test conditions and test data.
Stored data can be retrieved at any time for review and analysis.
Batch Testing Function
After setting test parameters, multiple specimens can be tested continuously.
Test conditions, specimen parameters, test data, and results can be stored and recalled without repeated setup.
Test Report Printing
Supports automatic generation and printing of detailed test reports.
The radial loading mechanism of the main machine adopts a dual-column structure. The worktable and crossbeam are manufactured from thick steel plates, while the columns are chrome-plated round columns to ensure high rigidity during loading.
The displacement sensor is coaxially installed inside the servo cylinder to ensure measurement accuracy. A servo valve closed-loop control system is used to precisely control cylinder force and displacement.
The servo swing system adopts a swing actuator loading method. An angle sensor is installed coaxially to measure the real-time rotation angle, and the servo controller executes precise motion control.
The sliding table system is designed for convenient specimen installation and can accommodate specimens of different sizes and installation positions.
The fixture system connects the inner hole of the specimen through a coaxial rod and fixes it with nuts. The outer ring of the specimen is fixed to the fixture. The radial loading shaft and rotation shaft are connected through the coaxial rod to apply radial force and torque to the specimen.
The hydraulic power unit consists of a three-phase asynchronous motor and gear pump. System pressure is adjusted through an overflow valve. The hydraulic oil output to the system passes through a filter with a filtration accuracy of less than 6 μm, ensuring reliable operation of the servo valve. The return oil filter cleans the hydraulic oil before returning it to the tank, maintaining oil cleanliness.
The test bench consists of two independent loading channels:
1. Radial Loading Channel
Consists of a fixed crossbeam and columns located above the worktable.
The hydraulic cylinder and servo valve are mounted on the crossbeam.
The load sensor is fixed relative to the cylinder piston rod.
The displacement sensor adopts a magnetostrictive structure:
Sensor body fixed at the bottom of the hydraulic cylinder.
Magnetic ring installed on the hydraulic piston.
Displacement is measured through magnetic signal changes during piston movement.
2. Servo Swing Loading Channel
Consists of a rotary swing cylinder and angle sensor installed on the left side of the worktable.
The swing actuator is a key component consisting of:
Swing cylinder
Angle sensor
Servo valve
Accumulator
Features of the swing actuator:
Dual-vane structure with front flange installation.
Low friction and low damping.
High-frequency response capability.
Excellent resistance to lateral forces.
Wide operating temperature range.
High load capacity.
No crawling phenomenon at low speeds.
The angle sensor is coaxially installed with the swing cylinder piston rod, providing absolute angle measurement with high accuracy and strong environmental adaptability.
3. Torque Measurement System
Located on the right side of the worktable.
The bushing fixture is installed between the torque sensor and swing cylinder.
The bushing is connected to the torque sensor flange through a support bracket.
Measures the relative rotation angle between the inner and outer sleeves during torsional loading.
Torque loading is controlled by the swing cylinder through computer software.
The torque loading system is mounted on a movable sliding table, allowing forward and backward adjustment according to specimen dimensions for convenient installation.
4. Linear Servo Actuator
Adopts a supported structure design.
The piston is machined with pressure-equalizing support grooves.
The piston rod surface is hard chrome plated, ground, and polished to improve service life.
Uses combined sealing elements manufactured with advanced sealing technology.
Features:
Low friction
High efficiency
Low starting pressure
High dynamic response
Long service life
Qinsun Instruments Co., LTD is a professional laboratory testing instrument manufacturer in China,Have been focusing on laboratory instrument R&D more than 30 years and have rich industry experience,Based on international testing standards,We are also the instrument supplier for BV SGS laboratory,We provide one-stop solutions for lab instruments,Free Training and Turn-Key Service,Products exported all over the world,Offer 36 month warranty and are a trustworthy partner.
Company Phone
+86-21-6420 0566
Working hours
Monday to Friday
Mobile phone:
13816217984
Email:
info@qinsun-lab.com
