Adjustable clamping device of minisize torsional rod rigidity test
A clamping mechanism and adjustable technology, which is applied to measuring devices, using stable torque to test the strength and strength characteristics of materials, etc., can solve the problems of poor stability, low efficiency and difficult clamping, and achieve convenient clamping and measurement. The effect of high precision and convenient operation
Inactive Publication Date: 2010-05-19
SHANGHAI INST OF TECH
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Problems solved by technology
[0017] The present invention is to provide an adjustable clamping mechanism for miniature torsion bar stiffness testing, which is used for computer testing devices based on static testing methods, and solves the technical problems of low efficiency, poor stability and difficult clamping in existing static testing devices , the mechanism is simple in structure and easy to operate, and can realize efficient and high-precision testing of torsion bar stiffness
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Embodiment Construction
[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0033] Such as Figure 5 As shown, the adjustable clamping mechanism of the miniature torsion bar stiffness test of the present invention includes a test bench base 1, a column 2, a lifting nut 3, a locking screw 4, a cross arm 5, a locking screw 6, an adjustable base 14, The adjustment screw 15 constitutes a precision optical bench (outsourced part), which is improved here so that it can be connected with other test components.
[0034] The cross arm 5 is sleeved outside the column 2, and its lower end surface is in contact with the lifting nut 3 on the column 2, and a locking screw 4 is provided on the outer surface, the locking screw 4 is loosened, and the cross arm can be made to move through the lifting nut 3. 5 moves up and down, and the cross arm 5 can be rotated around the center line of the column 2 directly manually.
[0035] The front end o...
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Abstract
The invention relates to a zoom type institution of testing mini type twisted bar rigidity, it includes test desk base, column, cross arm, the characteristic is that the cross arm cover the outer of column, the inferior extremity face touch the rise fall nut on the column, and setting the locknut on the lateral surface; setting the motion joint sleeve on the front cross arm, and locking the location by locknut, removing the suspension torque detector under the joint sleeve, the transducer gaging spindle of the torque detector connect with tested torsion lever by coupling, locking and fixing the inferior extremity of tested torsion lever by self centering collet; fixing and connecting self centering collet with coupling flange,shear lever and electric control gear table, the electric control gear table is on the adjustable base of self centering collet, the adjustable base laying on the test desk base, fixing the adjusting screw of side face of adjustable base. It can solve the low efficiency and stability of the in existence static testing equipment, the technology problem of loading difficulty, the structure of institution is simple,convenience operation, it can realize high performance,high accuracy testing of torsion lever rigidity.
Description
technical field [0001] The invention relates to a torsion bar stiffness test fixture, in particular to an adjustable fixture mechanism used for miniature torsion bar stiffness test. Background technique [0002] The aerospace miniature torsion bar is the core component of the flexible gyroscope, and there are two types of measurement of its stiffness: separate measurement and after-assembly measurement. According to the test principle, it can be divided into two categories: static measurement method and dynamic measurement method. [0003] 1. Static measurement method [0004] The static measurement method measures the magnitude of the moment M and the rotation angle θ (or force and displacement) applied to the torsion bar (or flexible joint), and directly uses the following formula to calculate the stiffness value. [0005] K = M θ [0006] In the formula: M is the measured torque value applied to the torsion bar, ...
Claims
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IPC IPC(8): G01N3/04G01N3/22
Inventor 高晓康刘春节
Owner SHANGHAI INST OF TECH