This 30-ton computer-controlled vertical conveyor belt longitudinal tension testing machine is designed according to the longitudinal tensile strength requirements specified in the standards MT/T668-2008 Flame-retardant Steel Cord Conveyor Belts for Coal Mines and MT/T318.1-1997 Technical Specifications for Mechanical Splices of Conveyor Belts for Coal Mines.It can also be used to test various mechanical properties of metals, nonmetals, and composite materials, including tension, compression, bending, shear, peeling, and tearing. The system uses a closed-loop microcomputer control, offering wide and accurate loading speed and force measurement range, with high precision and sensitivity in measuring and controlling load and displacement.
The testing machine uses a digital AC servo speed control system and motor with high speed control accuracy and stable performance as the driving system. A specially designed synchronous toothed belt reduction system and ball screw pair drive the movement of the machine's movable beam. The control and data processing software, based on database technology and operating on a Windows platform, employs virtual instrument technology to enable on-screen display of test force, force peak, beam displacement, sample deformation, and test curves. All test operations can be completed by mouse input on the computer screen, offering a friendly human-machine interface and convenient operation. The integrated application of the above technologies ensures closed-loop control of parameters such as test force, sample deformation, and beam displacement, allowing the machine to perform constant force, constant displacement, constant strain, constant rate loading cycle, and constant rate deformation cycle tests.
Applicable standard:
1. GB/T 2611-2007 General Technical Requirements for Testing Machines
2. JB/T 7406.1-1994 "Testing Machines—Terminology—Material Testing Machines"
3. GB/T 16491-2008 Electronic Universal Testing Machine
4. GB/T 16825.1-2008 "Testing of static uniaxial testing machines - Part 1: Verification and calibration of the force-measuring system of tensile and/or compressive testing machines"
5. GB/T 22066-2008 "Evaluation of Computer Data Acquisition Systems for Static Uniaxial Testing Machines"
6. JJG 139-1999 "Tensile, Compression, and Universal Material Testing Machines"
7. JB/T 6146-2007 "Extensometer Technical Specifications"
8. JB/T 6147-2007 "Technical Requirements for Packaging, Packaging Marking, Storage, and Transportation of Testing Machines"
9. GB/T 228.1-2010 Metallic Materials—Tensile Testing—Part 1: Method of Test at Room Temperature
10. GB/T 7314-2005 Metallic Materials—Room Temperature Compression Test Method
11. GB/T 232-2010 "Metallic Materials—Bend Test Method" and other non-metallic testing standards
12. MT/T 668-2008 Flame-retardant steel cord conveyor belt for coal mines
13. MT/T 318.1-1997 Technical Specifications for Mechanical Splices of Conveyor Belts Used in Coal Mines
14. MT/T 914-2008 Fabric-reinforced Conveyor Belts for Coal Mines
Main equipment parameters:
Name | Belt longitudinal tensile testing machine |
Maximum test force | 300 |
Accuracy Class | Level 1 / Level 0.5 |
Permissible error limit of test force indication | Within ±1% of the indicated value |
Load measurement range | 0.4% to 100% of full scale |
Test force indication resolution | 1/500,000 of the maximum test force |
Deformation measurement range | 1-100%FS |
Limit of error in deformation indication | Within ±1% of the indicated value |
Shape resolution | 1/500,000 of the maximum deformation |
Limit error of displacement indication | Within ±1% of the indicated value |
Displacement resolution | 0.001mm |
Constant displacement control adjustment accuracy | When the rate is <0.1% FS, it is within ±1% of the set value; When the rate > 0.1% FS, it is within ±0.2%/±0.5% of the setpoint. |
Adjustable displacement speed range | 0.01-300mm/min |
Displacement rate control accuracy | Within ±0.5% of the set value when the rate is <1 mm/min. Within ±0.2% of the set value when the rate is ≥1 mm/min. |
Effective test width | 600mm |
Effectively stretch or compress spatial distances | 1500mm (custom sizes available upon request) |
Software and user interface | Human-machine dialogue, fully automatic control |
Power supply | Three-phase 220V; 50Hz, 1.5kW |
Mainframe dimensions | Approx. 1050*800*3100mm |
Machine weight | Approximately 2000 kg |
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