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Introduction and characteristics of manhole cover testing machine

Introduction and characteristics of manhole cover testing machine

1. The main purpose of the manhole cover compression testing machine

The microcomputer-controlled manhole cover compression testing machine adopts a hydraulic loading system and manually controls the loading; the manhole cover compression testing machine controller is used to realize electronic force measurement and digital display. During the test, it has the function of holding the test force peak value and can manually remove the peak value; this machine is suitable for the compressive strength test of cast iron and steel fiber reinforced concrete manhole covers; JC889-2001 "Steel Fiber Concrete Inspection Manhole Cover", CJ/T3012-93 " Cast iron manhole covers, requirements of EN 124.

2. Features and performance of manhole cover compression testing machine

2.1. The main engine adopts a high-rigidity structure to ensure the safety during the test.

2.2. The loading cylinder is placed on the top, and the height of the worktable is 300mm, which is convenient for taking and placing the manhole cover specimen.

2.3. The rigid block and the push-out end of the piston are connected by a spherical hinge to ensure complete contact between the manhole cover and the reaction plate, and to ensure the authenticity of the measured bearing capacity.

2.4. The oil cylinder and the piston are sealed with special materials to achieve the effect of high sealing, low friction and long life.

2.5. Adopt professional test oil pump motor unit, low noise and long life.

2.6. The ultra-fine oil filter is selected to ensure the cleanliness of the oil circuit system so as to ensure the long-term work of the control actuators.

2.7. Computer display, real-time display of current force value, peak value, test process information, etc.

2.8. Real-time recording of the test curve during the test process, high-speed sampling;

2.9. The data and report processing function provides users with a special report editing tool for graphic typesetting, which is flexible in operation and easy to learn, and can easily print test curves and test values;

2.10. The computer displays the screen display function of test force, peak value, piston displacement, test curve, test curve force-time curve, force-deformation curve, deformation-time curve, and mode transition smoothly.

2.11. Users can program by themselves according to the needs of the experiment.

2.12. The software sets the force value automatic clearing system, which eliminates the factors such as artificial meter reading errors.

2.13. With overload protection, when the force value or displacement exceeds the rated theoretical value of the testing machine, it will automatically unload or stop the test.

2.14. The failure load and deformation value are automatically collected and the report is printed.

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