Exhaust muffler muffling performance test bracket
An exhaust muffler and noise reduction technology, which is applied in the testing of machines/structural components, instruments, mechanical components, etc., can solve problems such as inconvenient use and poor stability, and achieve convenient use, good stability, and improved versatility Effect
Inactive Publication Date: 2019-07-16
ZHENGZHOU YUTONG BUS CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide an exhaust muffler silencer performance test bracket to solve the problems of inconvenient use and poor stability of the existing test fixtures
Method used
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Embodiment Construction
[0039] The present invention will be further described below in conjunction with accompanying drawing.
[0040] In the present invention, the embodiment of exhaust muffler noise reduction performance test support is as follows Figure 1~Figure 7 As shown, it is a kind of exhaust muffler noise reduction performance test support for testing the exhaust muffler 23 whose cross-section is oval, including two base frames 1 arranged at intervals along the horizontal direction during use and connected to two The telescopic frame 7 between the base frames 1, two base frames 1 are respectively provided with a bottom bracket 14 for lifting the exhaust muffler 23 to be tested and two brackets for clamping the exhaust muffler 23 to be tested. The jaws 20 and the base 14 are arranged on the base frame 1 in a position-adjustable manner along the vertical direction, and the jaws 20 are disposed on the base frame 1 in a position-adjustable manner in the horizontal direction. The base frame 1 ...
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The invention relates to an exhaust muffler muffling performance test bracket. The exhaust muffler muffling performance test bracket comprises a base; the base is provided with bottom supports for supporting and lifting a to-be-tested exhaust muffler; the bottom supports are adjustably arranged on the base along a vertical direction; clamping claws for clamping the to-be-tested exhaust muffler arearranged on the base and at two sides of the bottom supports along a horizontal direction; and the clamping claw comprises a clamping position for clamping and fixing the to-be-tested exhaust mufflerand a release position for releasing the to-be-tested exhaust muffler. The bottom supports can play the role of supporting and lifting the exhaust muffler, the clamping claws arranged at two sides ofthe bottom supports can play the role of clamping the exhaust muffler supported and positioned on the bottom supports, and thus, the exhaust muffler is clamped and fixed on the whole. In comparison with the prior art, disassembly and locking of a clamping block are not needed, making of a large clamping block according to the exhaust muffler is not needed, the weight is light, the operation is facilitated, the stability is good, and the use is convenient.
Description
technical field [0001] The invention relates to an exhaust muffler noise reduction performance test bracket. Background technique [0002] Passenger car products can be divided into large passenger cars, medium-sized passenger cars, light passenger cars, etc., and the length distribution range is wider. Compared with passenger cars, the exhaust mufflers used in passenger cars also have more specifications, and parameters such as length, diameter, and shape often exist. Big difference. When conducting the noise reduction performance test in the semi-anechoic chamber, it is necessary to strictly control the parameters such as the height of the silencer exhaust port from the ground in strict accordance with the requirements of the national standard. At the same time, during the test, due to the disturbance of the exhaust air flow, the body of the exhaust muffler will vibrate greatly, so the test bracket is required to be stable and reliable. Therefore, there is a need for a u...
Claims
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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 郜盼盼谢富科郑灏齐伸翼
Owner ZHENGZHOU YUTONG BUS CO LTD