Coaxiality straightening and adjusting device for tensile test of carbon fiber strip
A technology of tensile test and adjustment device, which is applied in the direction of measuring device, applying stable tension/pressure to test material strength, strength characteristics, etc., can solve the problem that the carbon fiber strip fixture cannot be kept straight, etc., and increase the stability of movement , Reduce the effect of coaxiality deviation
Pending Publication Date: 2022-05-10
CHANGCHUN HUIKAI TECH
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Problems solved by technology
[0004] The purpose of the present invention is to provide a coaxiality straightening adjustment device for carbon fiber strip tensile test, which solves the existing problem that the carbon fiber strip can not be guaranteed to be kept straight with the fixture in the strength tensile test
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[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0035] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", "surrounding", etc. indicate orientation or positional relationship, and are only for the convenience of describing the present invention and simplified descriptions, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation,...
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The invention discloses a coaxiality straightening and adjusting device for a carbon fiber strip tensile test, and relates to the technical field of material tensile tests. The device comprises a main frame which comprises a base; the driving mechanism comprises a sliding rail in a center groove in the bottom of the base, a supporting block, a telescopic column and a driving assembly; the fine adjustment mechanism comprises a transverse shaft connecting rod, a cross beam and a fine adjustment assembly mounted between the transverse shaft connecting rod and the cross beam; the clamping mechanism is installed on the supporting block and comprises a shell. By arranging the auxiliary fine tuning device and the adjusting sliding rod, the auxiliary fine tuning device is finely tuned through eight puller screws, so that the whole structure is adjusted to ensure that the coaxiality of an upper clamp and a lower clamp of the clamping head reaches 5%, and the position of the adjusting sliding rod is moved by rotating a fixing bolt; the pointer of the adjusting sliding rod is aligned on the clamp body dial gauges of the upper clamping head and the lower clamping head and abuts against the adjusting sliding rod to ensure that a carbon fiber strip sample is neatly perpendicular to the clamping heads, so that the influence caused by coaxiality deviation in a tensile test is reduced.
Description
technical field [0001] The invention belongs to the technical field of tensile testing of materials, in particular to a coaxiality straightening adjustment device for tensile testing of carbon fiber strips. Background technique [0002] The specific strength and specific modulus of carbon fiber materials are the highest among the existing structural materials. Its specific modulus is 5 times higher than that of steel and aluminum alloy, and its specific strength is 3 times higher. The specific gravity of carbon fiber is generally around 1.6, which is one-half of that of aluminum alloy and one-fifth of that of steel. Carbon is insoluble in various solvents, and in an inert gas isolated from air (under normal pressure), it will not melt at high temperatures, and it is the only known material whose strength does not decrease above 2000 degrees Celsius. Only under the condition of 10Mpa pressure and high temperature above 3000K, it can directly sublimate without going through ...
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IPC IPC(8): G01N3/02G01N3/04G01N3/10
CPCG01N3/02G01N3/04G01N3/10G01N2203/0003G01N2203/0017G01N2203/0044G01N2203/04
Inventor 承梦生武迎春钱啸冬沈达鹏游岚杰
Owner CHANGCHUN HUIKAI TECH