Filling block, measuring device and method for measuring gear oil film thickness through eddy current method

Abstract

The invention discloses a filling block for measuring gear oil film thickness by an eddy current method, which comprises a filling block body and a sensor mounting block mounted on the filling block body, and the bottom end of the sensor mounting block is connected with the top end of the filling block body; the filling block body is generally cuboid-shaped, and a step surface is formed between the sensor mounting block and the filling block body; the shape of the step surface is the same as that of a tooth groove of a to-be-measured gear, the contact surface of the sensor mounting block and the step surface is the same as that of the tooth surface of the to-be-measured gear, and the height between the step surface and the top surface of the sensor mounting block is the tooth height of the to-be-measured gear; the sensor mounting block is provided with a sensor mounting hole, the sensor mounting hole is a blind hole, and the sensor mounting block is also provided with a sensor threading hole. According to the invention, the problem that the eddy current sensor is difficult to arrange in the prior art is solved, so that the eddy current sensor can be better applied to the measurement of the oil film thickness of various rotating machines, especially gears.

Description

technical field [0001] The invention relates to the technical field of gear lubrication, in particular to a filling block, a measuring device and a method for measuring the thickness of an oil film of a gear by an eddy current method. Background technique [0002] As an important part in the mechanical transmission process, the working state and service life of the gear will determine whether the mechanical device can operate normally. In order to ensure the reliable and stable operation of the gears, the gears should be in a good lubrication state. If the lubrication is good, there will be an oil film between the two tooth surfaces, which can prevent the wear caused by the direct contact of the tooth surfaces, and the thickness of the oil film is an important parameter to judge the lubrication state of the gear. Due to the difficulty of real-time measurement in the gear transmission process, the oil film thickness between the transmission gears is currently obtained indire...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a filling block, a measuring device and a method for measuring the thickness of the gear oil film by the eddy current method, so as to solve the problem that the traditional method of measuring the thickness of the oil film in the prior art is difficult to be applied to the gear, and the electrical Although the eddy current sensor has high precision, it is difficult to arrange it on the rotating gear

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