Rotating shaft system capable of dynamically measuring rotary moment and method and device thereof
A rotational torque and dynamic measurement technology, applied in measuring devices, power measurement, torque measurement, etc., can solve problems such as narrow application range, and achieve the effects of low cost, simple production and wide application range
Active Publication Date: 2015-11-11
NEW ANANDA DRIVE TECHN SHANGHAI
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Problems solved by technology
This method has a narrow scope of application and cannot truly reflect the magnitude of the force
Method used
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[0061] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0062] In the present invention, the torque shaft is a double shaft, that is, the torque is transmitted to the output shaft through the input shaft, the input shaft is concentric with the output shaft, and the input shaft is transmitted concentrically with the helical tooth internal spline of the output shaft through the helical tooth spline torque. The input shaft is slidingly matched with the output shaft through the helical tooth spline, and the output shaft is installed in the bearing chamber ...
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The invention provides a rotating shaft system, a method and a device capable of dynamically measuring a turning moment. An input shaft and an output shaft of the rotating shaft system can be connected in a mode that torque can be transmitted and axial force can be produced when the torque is transmitted; according to the axial force generated by the torque, a mounted planar thrust bearing moves, so that the axial force is re-transmitted to a static ring of the planar thrust bearing; the static ring of the planar thrust bearing does not rotate and axially moves under the action of the axial force, an elastic element deforms under the drive action of the static ring and an elastic element fixing ring, and the moment of force is obtained by detection of the axial force by an electronic element or detection. A signal obtained by the rotating shaft system can completely reflect the size of the moment of force and is not limited by a direction and not related with all-direction deformation of the shafts, so that the moment of force is really reflected. The rotating shaft system is simple in structure, simple to manufacture, low in cost and wide in application range, and can be widely applied to various motors, energy-saving equipment with an engine realizing automatic output according to a load, automatic equipment, robots and the like.
Description
technical field [0001] The invention relates to a structure that needs to dynamically measure the torque of the output shaft, in particular to a shaft mechanism that generates a torque signal from the central shaft of an electric power-assisted bicycle and controls the output of the motor according to the torque signal, and relates to a mechanism that needs to measure the torque of the output shaft according to the torque signal of the output shaft. The invention relates to a system for controlling the magnitude of input torque, in particular to a rotating shaft system capable of dynamically measuring rotational torque and its method and device. Background technique [0002] The traditional dynamic torque sensor is a kind of affixed strain gauge on the shaft. The shaft generates strain during use, and the strain gauge changes. At the same time, the strain gauge is connected to the inductance coil, which is a moving coil. There is a static coil outside the moving coil. By inp...
Claims
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IPC IPC(8): G01L3/00
Inventor 徐建
Owner NEW ANANDA DRIVE TECHN SHANGHAI