Self-powered device for supplying power for measuring sensor on rotary machine

Abstract

The invention discloses a self-powered device for supplying power for a measuring sensor on a rotary machine. An internal insulated rubber tape is uniformly coated along the outer surface of a section of rotary shaft which is closer to the rotary machine, a pair of rotor coils symmetrical along the axis is fixedly arranged on the internal insulated rubber tape, and the outer surfaces of the rotor coils are wrapped with external insulated layers; a power source rectification box is fixedly arranged on the rotary shaft between the rotor coils and the rotary machine, a rectified power source is arranged in the power source rectification box, the rotor coils are connected in series end to end, an output end formed after the rotor coils are connected in series is connected with an input end of the power source rectification box fixedly arranged on the rotary shaft, and an output end of the power source rectification box is connected with a wireless sensor fixedly arranged on the rotary machine; and two to three stator magnets uniformly distributed along the circumference direction are arranged in an external space around the rotor coils. The device disclosed by the invention can be used for supplying power for signal measuring sensors on various rotary mechanisms, is free from the influence of the external environment, and is convenient and feasible.

Description

technical field [0001] The invention belongs to a device for supplying power to a sensor on a rotating machine, in particular to a self-power supply device constructed to provide working power for a measuring sensor such as pressure and temperature on a rotating machine. Background technique [0002] In the prior art, the working power used by the wireless sensor used for pressure and temperature measurement on rotating machinery generally adopts three methods: the first one is to integrate the battery box with the sensor and supply power through the battery. Although this method adopts the use of The built-in angular acceleration sensor function of the sensor, through the change of angular acceleration, wakes up the signal output of the signal transmitter to save power, but with the loss of battery power, external maintenance and battery replacement are required; the second is to use the sensor The power supply is guided on the coaxial brush to form a power supply circuit w...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantage that the power supply method in the prior art is not conducive to the power supply for the wireless sensor on the rotating mechanism, and to provide a self-power supply device for supplying power to the wireless measuring sensor on the rotating mechanism. The rotating machinery works together, and the wireless sensor on the rotating mechanism is self-powered by using the rotating machinery coaxial power generation device, so that the signal measurement on the rotating equipment is reliable, the power supply is relatively stable and maintenance-free

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