An extensometer constant moment loading device and method used in tunnel monitoring and measurement
A loading device and convergent gauge technology, applied to measuring devices, instruments, etc., can solve problems such as inconvenient operation of reading the scale line and measurement data errors, and achieve the effects of facilitating measurement work, overcoming measurement errors, and improving efficiency
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[0025] Below in conjunction with accompanying drawing and example the present invention will be further described:
[0026] Such as Figure 1-3 As shown, an extensometer constant moment loading device used in tunnel monitoring and measurement mainly includes a loading spring tube 1 , a tension nut 2 , a tension screw 3 , a high-precision spring piece 4 , and a load tooth 5 . The tension nut 2 and the tension screw 3 together form a tension bolt, and the inner side of the loading spring tube 1 is fixed with a high-precision spring piece 4, which is used to transmit the torsional force to the load tooth 5, and when the elastic modulus exceeds its elastic modulus, it is connected with the load force Teeth 5 are separated; tension bolts, including tension nut 2 and tension screw 3 that cooperate with each other, are used to converge and measure tension loading; the outer side of the tension nut 2 is fixed with load teeth 5, which are used to receive the torsional force transmitted...
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