Torque sensor and measuring system

Abstract

The invention relates to a torque sensor which comprises a flanged shaft and a stress sensor, wherein, the two end faces of the flanged shaft are provided with ring flanges so as to be used for fixedly connecting a rotating shaft of power equipment or the rotating shaft of a load. The invention also relates to a measuring system of the torque sensor, which comprises the load, the torque sensor and the power equipment which are sequentially connected, a coupling on the torque sensor fixedly connects the rotating shaft of the power equipment and the rotating shaft of the load. By arranging the ring flanges on the end faces of the torque sensor, on the one hand, distance dimension along the axial direction is shortened, axial stability is improved, the sensor is suitable for working conditions with special dimension and is more suitable for the occasions of high speed and super high speed due to the avoidance of the use of a bearing, and the application is wider; on the other hand, the installation process is simpler and is convenient for operation.

Description

technical field [0001] The invention relates to a sensor, in particular to a torque sensor and a measuring system. Background technique [0002] In the fields of oil exploration, electric motors, railway machinery and equipment, there are many important equipment that need continuous operation. In order to obtain parameters such as torque and power of these machinery and equipment, people use torque sensors to detect the torque of the shaft of the machinery and equipment online, so as to keep abreast of the machinery and equipment The performance and working conditions of the mechanical equipment are dynamically detected and managed for real-time regulation. [0003] At present, there are shaft extensions at both ends of the torque sensor in the prior art, and the shaft extension is relatively long, accounting for about 1 / 2-1 / 3 of the total length, and a coupling is installed on the shaft extension, so the volume of the entire torque sensor The weight and weight are relativ...

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Problems solved by technology

[0003] At present, there are shaft extensions at both ends of the torque sensor in the prior art, and the shaft extension is relatively long, accounting for about 1 / 2-1 / 3 of the total length, and a coupling is installed on the shaft extension, so the volume of the entire torque sensor The weight and weight are relatively large, not only consume more materials during manufacture, but also cannot be installed in many occasions because there is not enough space, and it is impossible to realize real-time detection of some mechanical equipment

The housing of the torque sensor in the prior art is supported and connected to the torque sensor through bearings. Since the use of the bearing has a certain limit on the rotational speed range of the rotating shaft, the range of the rotating shaft rotational speed measured by the torque sensor is also limited.

When using the torque sensor in the prior art, the center of the rotating shaft of the torque sensor and the rotating shaft of the power equipment or load to be measured must be consistent, and the installation accuracy must be within 0.02mm, and the vibration of the power equipment or load to be measured is easy The relative position between the torque sensor and the power equipment to be measured and the load is deviated to a certain extent, so that the center positions of the three rotating shafts are not in a straight line, and the resulting bending moment and additional force will affect the measurement accuracy of the torque sensor , and the components such as the torque sensor and the power equipment or load to be tested are worn, which reduces the service life of the torque sensor and the power equipment or load to be measured

And the torque sensor in the prior art, the operation of installation and debugging is more complicated, needs the specialized technical personnel who has certain installation and debugging experience to be able to finish, and the required time of installation and debugging is also longer, so the power equipment to be tested or The load is out of service for a longer time, so the cost of installing and debugging the torque sensor is relatively high

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