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Testing system for anechoic room, and anechoic room

A test system, anechoic chamber technology, applied in engine testing, machine/structural component testing, measuring devices, etc., can solve problems such as increased load, difficult adjustment of shafts through walls, damage to bearings or shafts, etc.

Active Publication Date: 2016-05-25
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when the system is running, the inconsistency of the vibration of the two horizontal irons will cause the vibration of the bearings on both sides of the wall shaft 5' to be inconsistent, so that the alignment accuracy on both sides of the wall shaft 5' will deteriorate, and the load on the bearings will increase. , long-term operation will damage the bearing or shaft
And it is difficult to adjust the centering of the wall shaft 5', and it is difficult to adjust it before each test
Therefore, it is difficult to guarantee test accuracy and component life

Method used

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  • Testing system for anechoic room, and anechoic room
  • Testing system for anechoic room, and anechoic room

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Embodiment Construction

[0033] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0034] In the present invention, under the situation of not stating to the contrary, the orientation words used such as "upper, lower, bottom, top" are generally defined under the situation that the anechoic chamber provided by the present invention works normally, "inner, outer ” refers to the inside and outside of the contour of the corresponding part.

[0035] Such as figure 2 As shown, the present invention provides a test system for an anechoic chamber and an anechoic chamber using the test system. Wherein the testing system includes a first foundation 11 for carrying the test piece, a second foundation 21 for carrying the dynamometer 3, and a transmissi...

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Abstract

The invention discloses a testing system for an anechoic room, and the anechoic room. The system comprises a first foundation (11) which is used for bearing a to-be-tested piece, a second foundation (21) for bearing a dynamometer (3), and a transmission shaft (5) which is in transmission connection with the dynamometer (3) and the to-be-tested piece. The system also comprises a plurality of bearing seats (22) supporting the transmission shaft (5), and the plurality of bearing seats (22) are disposed on the second substrate (21) and arranged along the transmission shaft (5) at intervals. The bearing seats (22) for supporting the transmission shaft (5) are disposed on one foundation, thereby guaranteeing the vibration consistency of all bearing seats and the transmission shaft (5). The system can effectively guarantee the centering precision of the transmission shaft (5), can effectively prolong the service life of the shaft and bearings, and can effectively improve the precision of noise testing.

Description

technical field [0001] The invention relates to the field of noise-related experiments of powertrain devices, in particular to a test system for an anechoic chamber and an anechoic chamber using the test system, especially a semi-anechoic chamber for an engine. Background technique [0002] With the rapid increase of the number of automobiles in our country, more and more people put forward higher requirements for the noise performance of automobiles. As the main source of vehicle noise, the engine's noise performance plays a vital role in the vehicle's noise level. As an important tool to improve the engine noise performance, the engine semi-anechoic chamber plays a vital role in the engine noise test. Among them, the engine semi-anechoic chamber can provide a semi-free field environment for the engine noise test, and eliminate the influence of environmental reflection noise and external noise, so that the engine noise can be accurately tested. In addition, in addition to...

Claims

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Application Information

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IPC IPC(8): G01H17/00G01M15/00
CPCG01H17/00G01M15/00
Inventor 孙洪飞
Owner BEIQI FOTON MOTOR CO LTD