Mounting base for vibration test of high temperature part of automobile engine

Abstract

The invention discloses a mounting base for the vibration test of a high temperature part of an automobile engine, wherein a base body is a cuboid, and is characterized in that: the upper surface of the base body is the mounting surface of a sensor; a longitudinal boss is arranged at the middle part of the lower surface of the base body, and external threads are arranged on the lower boss, and are used for installing the high temperature part of the automobile engine; lateral bosses of the same shape are respectively arranged at the middle parts of the left side and the right side of the base body, and are respectively provided with external threads for installing ferrule type pipe ports; the ferrule type pipe ports are standard parts; and a through hole which penetrates through the two lateral bosses is arranged in the base body along the length direction, and is a cooling water passing channel. The invention has the beneficial effects that: the mounting base is adopted for the vibration test of the high temperature part of the automobile engine, so the vibration sensor cannot be damaged due to the high temperature; and special apparattuses for the vibration test of the high temperature parts are not needed to be additionally purchased, so the mounting base is low in cost, is simple to manufacture, is quick to install and can also be repeatedly used.

Description

technical field [0001] The invention relates to an installation base which can be used for the vibration test of high-temperature components in the NVH bench test of an automobile engine. Background technique [0002] During the engine NVH bench test, the temperature of high-temperature components (such as the exhaust mechanism of the engine) is very high, and the sensor cannot be directly attached to the surface of the exhaust manifold or heat shield for measurement, and the test needs to measure the vibration of high-temperature components , only non-contact measuring tools (such as laser vibrometers) can be used to test its vibration. Such an approach requires the purchase of new test equipment, which is costly, and when the high-temperature components vibrate too much, the test results are not reliable. Contents of the invention [0003] The purpose of the present invention is to provide a mounting base for vibration testing of high-temperature parts of automobile eng...

AI Technical Summary

Problems solved by technology

[0002] During the engine NVH bench test, the temperature of high-temperature components (such as the exhaust mechanism of the engine) is very high, and the sensor cannot be directly attached to the surface of the exhaust manifold or heat shield for measurement, and the test needs to measure the vibration of high-temperature components , can only use non-contact measuring tools (such as laser vibrometer) to test its vibration

This approach requires the purchase of new testing equipment, which is costly, and when the high-temperature components vibrate too much, the test results are not credible

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