YJW-10000 kN Microcomputer Controlled Electro-hydraulic Servo Shear Testing Machine

The YJW-10000 microcomputer controlled electro-hydraulic servo shear testing machine adopts a cylinder down type and four column structure, with high frame stiffness and strength, small deformation, meeting the testing requirements of plate, bowl, and ball bearings for highway and railway bridges. The testing space is infinitely adjustable, making it convenient for testing needs at different heights. Adopting the proprietary multi-channel closed-loop coordinated loading electro-hydraulic servo control system independently developed by Xinguang, the system is controlled by a microcomputer to coordinate multi-stage hydraulic loading, smooth continuous loading, and multi-level test force maintenance. It automatically collects and stores data, draws curves, and prints test reports. The computer controls the test process in a timely manner, displays test forces and curves, and has simple and reliable operation.

Relevant national and industry standards implemented:

1) JB/T 11582-2013 "Compression Shear Testing Machine"

2) GB/T 2611-2022 General Technical Requirements for Testing Machines

3) JT/T 4-2019 "Plate Rubber Bearings for Highway Bridges"

4) JT/T 391-2019 "Pot type Bearings for Highway Bridges"

5) GB/T 17955-2009 "Technical Conditions for Ball Bearings"

6) TB/T 1893-2020 "Railway Bridge Plate Rubber Bearings"

7) TB/T 2331-2013 "Basin type Bearings for Railway Bridges"

8) TB/T 3320-2013 "Ball Bearings for Railway Bridges"

9) GB 20688.4-2023 "Rubber Bearings Part 4: Ordinary Rubber Bearings"

Main technical indicators and parameters

1.Vertical loading section

1.1 Maximum test force: 10000kN;

1.2 Test force measurement range: 2% to 100% F.S;

1.3 Test force measurement accuracy: ≤ ± 1% of the indicated value;

1.4 Maximum no-load speed of oil cylinder: 50mm/min;

1.5 Maximum stroke of oil cylinder: 300mm;

1.6 Displacement measurement range: 0-300mm;

1.7 Displacement measurement accuracy: ≤ ±1%F.S；

1.8 Deformation measurement division value (mm): 0.001 (vertical deformation), 0.001 (radial deformation);

1.9 Deformation measurement: Four grating digital displacement sensors measure the vertical deformation of the sample; Four grating type digital displacement sensors are used to measure the radial deformation of the sample;Deformation measurement range: 0-50mm (vertical deformation), 0-20mm (radial deformation);

1.10 Experimental adjustment space: 0-1000mm;

1.11 Maximum test space: 1000mm;

1.12 Upper pressure plate size: 1050mm × 1050mm × 200mm;

1.13 Small car pressure plate size: 1050mm × 1050mm × 200mm;

1.14 Constant speed test force control range: 0.5kN/s to 25kN/s;

1.15 Constant velocity displacement control range: 0.5 mm/min to 50 mm/min;

1.16 Control mode and data processing: Computer servo control system and data (test force, displacement) graphic acquisition and processing, etc;

2 .Horizontal cutting section

2.1 Maximum test force: 2000kN;

2.2 Test force measurement range: 2% -100% F.S;

2.3 Accuracy of test force: ≤ ± 1% of the indicated value;

2.4 Maximum stroke of oil cylinder: 250mm;

2.5 Maximum no-load speed of oil cylinder: 60mm/min;

2.6 Displacement measurement range: 0-250mm;

2.7 Displacement measurement accuracy: ≤ ±1%F.S；

2.8 Deformation measurement division value (mm): 0.001;

2.9 Deformation measurement: Two grating type digital displacement sensors measure the transverse shear deformation of the sample;

2.10 Deformation measurement range: 0-100mm

2.11 Deformation measurement accuracy: ≤ ±1%F.S；

2.12 Shear plate size: 1050mm × 1490mm × 60mm;

1.13 Force measurement method: high-precision load sensor for force measurement;

1.14 Horizontal cutting device lifting: floating hydraulic cylinder adjustment;

1.15 Load holding function: high-precision imported servo valve load holding, multi-level control of lateral shear force;

3.Corner sections

3.1 Maximum corner top output: 500kN;

3.2 Test force measurement range: 2% -100% F.S;

3.3 Accuracy of test force: ≤ ± 1% of the indicated value;

3.4 Maximum stroke of oil cylinder: 200mm;

3.5 Maximum no-load speed of oil cylinder: 0-60mm/min;

3.6 Displacement measurement range: 0-300mm;

3.7 Displacement measurement accuracy: ≤ ±1%F.S；

3.8 Deformation measurement range: 0-50mm (using four vertical sensors);

3.9 Deformation measurement division value: 0.001mm;

3.10 Deformation measurement accuracy: ≤ ±1%F.S；

3.11 Deformation measurement: Four grating type digital displacement sensors measure the flipping deformation of the sample;

3.12 Force measurement method: high-precision load sensor for force measurement;

3.13 Load holding function: high-precision imported servo valve load holding, multi-level control of angular force;

3.14 Corner board size: 1050mm × 1320mm × 120mm.