Microprocessor control electro-hydraulic servo load-shear test machine

Abstract

The invention provides a microprocessor control electro-hydraulic servo load-shear test machine which comprises a host, a horizontal dynamic single-shear loading mechanism, a horizontal static double-shear loading mechanism, a rotating angle measuring system, a hydraulic system and a control system. A four-stand-column oil cylinder upside arranging structure is adopted for the host, a main oil cylinder achieves guiding through four reinforcing plates, the horizontal dynamic single-shear loading mechanism, the horizontal static double-shear loading mechanism and the four-stand-column oil cylinder upside arranging structure are used in cooperation, and therefore test space is large, operation is convenient, assembling is easy, experiment data is precise, the machine can be used as a highway and railway bridge and a high-damping rubber bearing and can also be used for a building component compression test, and multiple purposes are achieved through one machine.

Description

technical field [0001] The invention relates to a testing machine, in particular to a microcomputer-controlled electro-hydraulic servo compression-shear testing machine. Background technique [0002] The mechanical performance test of highway bridge plate rubber bearings, pot rubber bearings and spherical rubber bearings is based on the standard GB20688.4 2007 "Rubber Bearings Part Four: Ordinary Rubber Bearings", JT / T 4 2004 "Highway Bridge Plate Rubber Bearings", GB / T17955 2000 "Technical Conditions for Spherical Bearings", JT 391 1999 "Potted Rubber Bearings for Highway Bridges", the test contents of the mechanical performance test include: compressive elastic modulus test, Shear elastic modulus test, shear bond performance test, shear aging test, friction coefficient test, ultimate compressive test and corner test. SYWY-20000J microcomputer-controlled electro-hydraulic servo compression-shear testing machine is mainly used to test the axial and radial compression resist...

AI Technical Summary

Problems solved by technology

The existing SYWY-20000J microcomputer-controlled electro-hydraulic servo compression-shear testing machine generally has an actuator stroke of ±600mm. In actual operation, the loading rate of the testing machine is often unstable, and the measuring system of the testing machine adopts a swing The accuracy of the indication value is ±3% in the range of 4% to 100%. The instability of the test data and the misjudgment of the test results caused by the measurement will bring great harm to the sample production unit, the construction unit and the design unit used for the sample. Confusion, resulting in quality hazards

[0003] When testing according to the standard requirements of JT / T-4-2004 "Highway Bridge Plate Rubber Bearings", the original testing methods are completely unsuitable

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