In modern infrastructure such as bridge engineering, high-rise buildings, and rail transit, rubber bearings are key seismic isolation and damping components. Their compressive elastic modulus, shear elastic modulus, and corner performance directly affect the safety and durability of engineering structures. The microcomputer controlled electro-hydraulic servo static compression shear testing machine series of Jinan Xinguang Testing Machine Manufacturing Co., Ltd. provides high-precision and fully automatic testing solutions for the mechanical performance testing of finished bridge plate bearings, bowl bearings, ball bearings, and building isolation rubber bearings.
The core of the compression shear test is to accurately determine the mechanical response of rubber bearings under the combined action of vertical pressure and horizontal shear. The Xin Guang compression shear testing machine is designed strictly in accordance with national and industry standards, and has the following outstanding advantages:
1. Ultra large tonnage bearing capacity: In response to the testing requirements of different specifications of bearings, Xinguang can provide various tonnage models such as 5000kN, 10000kN, 15000kN, 20000kN, and even 30000kN to meet the testing requirements of plate bearings for highway bridges and basin bearings for large railway bridges. The vertical test force covers a wide range, and the horizontal shear system also has strong loading capacity, which can truly simulate the stress state of the support under actual working conditions.
2. Four column integral cast steel structure, stable and reliable: The host adopts a four column frame structure, and the crossbeam, base, and upper and lower pressure plates are all made of integral cast steel structure. The rigidity strength and structural stability of the frame are better than those of the two column structure, making it easy to accurately measure the elastic deformation of the sample. The experimental space is infinitely adjustable, facilitating the installation and testing of support samples at different heights.
3. High precision measurement and control system: equipped with high-precision load sensors and displacement measurement systems, the accuracy of the test force indication is better than ± 1% (level 1 accuracy), and the accuracy error of the force is ≤ indication ± 1.0% (20% -50% FS), ≤ ± 0.5% FS (50% -100% FS). The displacement measurement resolution is as high as 0.001mm, which can accurately capture the small deformation of the support during the loading process.
4. Multi channel closed-loop coordinated loading: Adopting the proprietary multi-channel closed-loop coordinated loading electro-hydraulic servo control system independently developed by Xinguang, it supports microcomputer control to coordinate multi-level hydraulic loading, continuous loading is smooth, without impact and vibration phenomena, multi-level test force is maintained, data is automatically collected and stored, and curves are drawn. The control system supports multiple control modes such as constant rate test force, constant rate stress, and constant rate displacement, and can be randomly/arbitrarily switched between control modes.
5. Multi functional testing capability: By configuring corresponding accessories and testing software, various mechanical performance tests of rubber bearings can be completed, covering comprehensively:
-Plate rubber bearings: compressive modulus test, ultimate compressive strength test, shear modulus test, shear adhesion performance test, shear aging test, friction coefficient test, allowable turning angle test
-Pot type rubber bearings: vertical bearing capacity test, friction coefficient test, and rotation test of finished bearings
-Spherical steel bearings: vertical bearing capacity test of finished bearings, friction coefficient test of finished bearings, measurement of rotational torque of finished bearings
-All tests specified in the national standards for slab, bowl, and ball bearings of railway bridges
The Xin Guang compression shear testing machine fully complies with the following national standards and industry specifications:
-JB/T11582 "Compression Shear Testing Machine"
-GB/T2611 General Technical Requirements for Testing Machines
-JT/T4-2019 "Plate Rubber Bearings for Highway Bridges"
-JT/T391 "Pot type Bearings for Highway Bridges"
-GB/T17955 "Technical Conditions for Spherical Bearings"
-TB/T1893 "Railway Bridge Plate Rubber Bearings"
-TB/T2331 "Basin type Bearings for Railway Bridges"
-TB/T3320 "Ball Bearings for Railway Bridges"
-GB20688.4 "Rubber Bearings Part 4: Ordinary Rubber Bearings"
The product is widely used in the following fields:
-Bridge Engineering: Mechanical Performance Testing and Engineering Acceptance of Finished Rubber Bearings for Highway and Railway Bridges
-Building isolation: Performance tests for ultimate compressive strength, shear elastic modulus, etc. of building isolation rubber bearings
-Quality inspection agency: As the core equipment for third-party testing and certification, it carries out quality supervision and inspection of support products
-Bearing production enterprises: mix design and product performance verification to ensure the quality of factory products
Regarding Xinguang:
Jinan Xinguang Testing Machine Manufacturing Co., Ltd. was established in 2002 and is a national high-tech enterprise specializing in the research and development, manufacturing, and sales of mechanical testing instruments. The registered capital is 100 million yuan, the company has more than 120 employees, a building area of about 16000 square meters, and 151 sets of various large-scale CNC machining centers and specialized machine tools, with a processing and production capacity ranking among the top in the industry. The company has been awarded the honorary titles of "Specialized, Refined, Unique and New" small and medium-sized enterprise in Shandong Province, "Gazelle" enterprise in Shandong Province, and "Green Factory" in Jinan City, and has led the revision work of the national standard GB/T16826-2023 "Electro hydraulic Servo Universal Testing Machine".
The company's main products cover a full range of categories including electronic universal testing machines, hydraulic universal testing machines, electro-hydraulic servo fatigue testing machines, compression shear testing machines, static load anchoring testing machines, relaxation testing machines, etc. They are widely used in national defense and military industries, research institutes, quality inspection institutions, and major mining enterprises, and are exported to international markets such as North America, Europe, the Middle East, Southeast Asia, and South Korea.
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