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A combination of bending and twisting, testing machine technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of high cost and bulky testing machine
Active Publication Date: 2016-02-10
EASTERN LIAONING UNIV
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Moreover, how many testing machines are relatively bulky and costly, the samples are placed horizontally, and the influence of the sample's own weight on the experimental data is ignored during the experiment
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[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0016] Such as figure 1 , figure 2 with image 3As shown, a bending-torsion combined testing machine is characterized in that: the bottom plate 1, the bottom plate support 2 and the middle plate 8 are welded to form the base of the testing machine, the motor support frame 3 is welded and fixed on the base, and the bearing seat Ⅰ7 is fixed with bolt Ⅱ9 On the bottom plate 1 and the middle plate 8, the main support column I15, the main support column II48 and the fulcrum adjustment guide rail 14 are respectively fixed on the middle plate 8 and the top plate 51 with nuts II20 and nuts I19 to form a working frame; the stepper motor 36 uses bolts Ⅰ5 is fixed on the motor support frame 3, and the bevel gear Ⅱ34 is connected to the shaft of the stepping motor 36 with the bolt Ⅵ35. One end of the main shaft 6 is connected to the bevel gear Ⅰ4 and the bevel ...
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Abstract
The invention relates to a bend and twist combination test machine. When a non-destructive twist test is performed, a stepping motor is used for driving a bevel gear to rotate, so that a test piece which is synchronous with the bevel gear is twisted, and a torque sensor is used for measuring torque acted on the test piece; when a bend test is performed, a fixing lead screw and a nut pair are used for driving parallel slideways fixed on nuts to move, bending force is exerted on the test piece, and at the same time, another lead screw which is perpendicular to the fixed lead screw and a nut pair are used for regulating the position of a force applying point on the test piece; a pressure sensor and a displacement sensor are respectively used for measuring force acted on the test piece and deformation generated by the test piece, the bending tests of a simple support beam, a cantilever beam and an overhanging beam are performed.
Description
technical field [0001] The invention belongs to departments of metrology and quality inspection, rubber and plastics, metallurgy and iron and steel, machinery manufacturing, automobile production, packaging materials and food, instruments and meters, medical equipment, civil nuclear energy, civil aviation, colleges and universities, scientific research laboratories, commodity inspection and arbitration, and technical supervision departments , building materials, ceramics, petrochemical, and other industries performance testing technical field, especially related to a bending performance test of metal and non-metal materials by applying pressure and torque, such as rubber, plastic, wire and cable, optical fiber cable, safety belt, insurance Belts, leather belt composite materials, plastic profiles, waterproof coils, steel pipes, copper materials, profiles, spring steel, bearing steel, stainless steel (and other high-hardness steels), castings, steel plates, steel strips, bending...
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