Dynamometer
A dynamometer and tensile plate technology, applied in the direction of measuring force, measuring device, instrument, etc., can solve the problems of large measurement error, inconvenient installation, complex structure, etc.
Inactive Publication Date: 2015-04-29
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
[0005] In order to avoid the deficiencies of the existing technology, overcome the problems of complex structure, inconvenient installation, large measurement error and difficulty in guaranteeing precision, the present invention proposes a dynamometer
Method used
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Embodiment Construction
[0018] This embodiment is a force gauge.
[0019] see figure 1 , figure 2 , image 3 , The dynamometer as a whole has a polygonal prism structure, and is fixedly installed in the support frame in the vertical direction. The dynamometer consists of a cover plate 1, a pull cord 3, a screw 2, a bottom plate 4, a roller 5, a tensile plate 6, a strain gauge 7, a threaded hole 8, a hook 9, and a ferrule 10; the bottom plate of the dynamometer 4 Rollers 5 are fixed on the central axis of the lower part of the inner plane, and rollers are respectively installed on both sides of the horizontal axis perpendicular to the central axis. plate connection, the cover plate 1 and the bottom plate 4 are fastened and locked by screws, and the drawstring 3 passes through the ferrule installed at the top of the middle of the cover plate 1 and the bottom plate 4 to protrude and connect with the hook 9; the resistance strain gauge 7 is attached to the pull On the stretching plate 6, measure the...
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Abstract
The invention discloses a dynamometer which is composed of a cover plate, a base plate, drawing ropes, a rolling wheel, drawing plates, resistance strain gauges and a hook. The cover plate covers the base plate and the cover plate and the base plate are fixedly mounted through screws, the rolling wheel mounted on the base plate is fixed to prevent the rolling wheel from sliding, the resistance strain gauges are attached to the central portions of the drawing plates and are attached to two faces of each of the drawing plates at the same time to measure the amount of deformation of the drawing plates, the left leg of the hook is perpendicular to the right leg of the hook, the left leg and the right leg of the hook are respectively in a 45-degree angle with a central axis of the hook on the vertical direction, burdened drawing force is dispersed evenly by the left leg and the right leg of the hook, the four drawing plates connected with the drawing ropes are strained because of the action of force, the resistance strain gauges arranged on the four drawing plates measure the size of the strain, average calculation to the value of all the resistance strain gauges is conducted, an average value is acquired to obtain the tension value of the drawing ropes on the left side and the right side, and finally the force value of the hook on the upper side part is obtained. The dynamometer is fixedly mounted in a support, applicable to measuring the tension of objects on the vertical direction, and convenient to measure.
Description
technical field [0001] The invention relates to a force-measuring device, in particular to a force-measuring gauge designed according to the principle of resistance strain gauge measurement. Background technique [0002] Chinese patent CN2802483Y discloses an electronic dynamometer, which is a force-measuring spring positioned at the left end of the inner cavity of the housing, and a transmission gear is arranged on the inner side of the right end of the inner cavity of the housing, and the force size is variable in the center hole of the transmission gear. The rotating shaft of the potentiometer or the variable capacitor is provided with a transmission rack meshed with the transmission gear in the housing cavity on the upper side of the transmission gear. One end of the transmission rack is connected with the force-measuring spring, and the other end is placed on the There is a force-measuring pull hook on the outer side of the right end of the housing, and a housing is pos...
Claims
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IPC IPC(8): G01L1/22
Inventor 王俊彪王兵曹小宝司朝润张贤杰
Owner NORTHWESTERN POLYTECHNICAL UNIV