Knife edge support friction test device
A test device, knife-edge support technology, applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve the problems of inaccurate measurement results, large measurement errors, and no consideration of friction, etc., to achieve optimized structure, eliminate errors, and simple structure Effect
Inactive Publication Date: 2011-07-20
INST OF MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology
[0002] The traditional friction and wear testing machine generally does not consider the friction between the parts in the process of measuring the friction coefficient, so there are many problems such as large measurement error and inaccurate measurement results when measuring the friction coefficient
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[0021] Such as figure 1 As shown, the knife-edge support friction test device of the present invention comprises a test platform 1, a sample stage 2, a knife-edge support 3, a sensor support 4 and a pulley support 5, and the sample platform 2, the knife-edge support 3 and the pulley support 5 are on the same straight line Set on the test platform 1 in turn, the upper surface of the sample platform 2 is parallel to the surface of the test platform 1, and the sample to be tested is placed on it, and the sample platform 2 rotates with the vertical direction as the rotation axis driven by the driving device. The upper surface of 3 has a tapered knife edge, erects a vertical plate 31 matching with the knife edge in the knife edge, is provided with wear-resistant layer on the contact surface of vertical plate 31 and knife edge, and erects a crossbeam 33 along the vertical plate 31, crossbeam 33 It is clamped and fixed on the vertical plate 31 by the chuck 32, and can swing up and do...
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The invention relates to a knife edge support friction test device which comprises a test platform, a sample stage, a crossbeam bracket, a sensor bracket and a pulley bracket, wherein the sample stage, the crossbeam bracket and the pulley bracket are sequentially arranged on the test platform along the front and rear direction of the test platform; a crossbeam is erected on the crossbeam bracket;a pressure head vertically extending downwards is fixed on one end of the crossbeam, and the other end of the crossbeam is connected with a lifting rope; the lifting rope spans over a pulley on the pulley bracket and a free end thereof lifts heavy objects; a sensor detecting pressure of the pressure head is arranged on the connecting section of the lifting rope and the crossbeam along the vertical direction; the sensor bracket is arranged at one side of the sample stage, and a friction force sensor extending to the sample stage is arranged on the sensor bracket and is used for detecting friction force of samples on the sample stage. A knife edge support type friction attrition test machine is provided on the basis of fully considering adverse factors of self-friction, slow load reaction, big relative error, and the like of traditional friction attrition test machines in a test when the knife edge support friction test device is designed, thus providing guarantee for accurately measuring friction systems.
Description
technical field [0001] The invention relates to a detection device for testing the friction coefficient of a sample. Background technique [0002] The traditional friction and wear testing machine generally does not consider the friction between various parts in the process of measuring the friction coefficient, so there are many problems such as large measurement error and inaccurate measurement results when measuring the friction coefficient. Contents of the invention [0003] Aiming at the problems existing in the prior art, the invention provides a knife edge support friction test device with simple structure and accurate measurement. [0004] In order to achieve the above object, the knife-edge support friction test device of the present invention comprises a test platform, a sample stage, a beam support, a sensor support and a pulley support, and the sample platform, the beam support and the pulley support are successively arranged on the test platform along the fron...
Claims
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IPC IPC(8): G01N19/02
Inventor 李光夏原陈支通
Owner INST OF MECHANICS CHINESE ACAD OF SCI