A method for detecting coplanarity of engine gear train

Abstract

The invention discloses an inspecting device and method of the motor gear train coplanarity. The inspecting device of the motor gear train coplanarity comprises a T-shaped main body, wherein the T-shaped main body is composed of a measuring basis section and a calibration section which is perpendicularly connected with the measuring basis section. When inspection is conducted, a belt pulley serves as a basis wheel, the outer end surface of the basis wheel serves as a basis surface, and identical positions on the basis surface and on the outer end surface of one other wheel to be detected are obtained. The side surface of the measuring basis section of the inspecting device of the motor gear train coplanarity is attached to and leans against the identical positions on the basis surface and the outer end surface of the wheel to be detected. In other words, the end surface difference value of the basis wheel and the wheel to be detected can be read out through calibrations of the calibration section. After all end surface difference values between the basis wheel and all wheels to be detected are measured out, the difference between the obtained maximum value and the minimum value is the belt deviation value of a gear train. The inspecting device and method of the motor gear train coplanarity has the advantages of being low in investment, light in weight, easy to operate, high in measuring speed and the like. In addition, the inspecting device and method of the motor gear train coplanarity completely meets the precision requirement that the coplanarity of the gear train is within + / - 2mm of the assembly technology.

Description

technical field [0001] The invention relates to the technical field of engine machinery, and more specifically relates to an engine wheel train coplanarity inspection tool and inspection method. Background technique [0002] At present, there are mainly three kinds of detection tools and detection methods for the coplanarity of the engine wheel train: one is to purchase large-scale equipment for three-coordinate detection of the coplanarity of the wheel train, one is to use tooling guide rails and sensors for detection, and the other is to use a section The elastic steel wire connects the two connecting plates, and the deflection angle of the steel wire is read through the scale line on the connecting plate. The existing three-coordinate detection of the coplanarity of the wheel train using large-scale equipment has the following disadvantages: 1. The equipment is expensive, and one piece of equipment can cost as little as more than 100,000 yuan; Unable to meet capacity nee...

AI Technical Summary

Problems solved by technology

The existing three-coordinate detection of the coplanarity of the wheel train using large-scale equipment has the following disadvantages: 1. The equipment is expensive, and one piece of equipment can cost as little as more than 100,000 yuan; Unable to meet capacity needs

The main disadvantage of the existing method of using tooling guide rails and sensors for detection is that the measurement cycle is slow, with an average cycle time of 3 minutes per unit, and due to the large size, one person needs to grasp the base of the inspection tool, and one person operates the guide rail to the designated position for measurement. 2 people can complete the operation

The existing method of using a piece of elastic steel wire to connect two connecting plates, and reading the offset angle of the steel wire through the scale line on the connecting plate, has the main disadvantage that the connecting plate cannot be positioned, and there is a phenomenon of inaccurate measurement due to deviation in positioning

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