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A gear chamber layered noise reduction structure

A gear chamber and layered technology, which is applied in the field of gear chamber layered noise reduction structure, can solve the problems that the gear chamber shell is not easy to manufacture, increase the production and processing cost of the engine, etc., achieve simple structure, low production cost, and improve noise reduction effect Effect

Inactive Publication Date: 2011-12-07
BRITISH JOINT VENTURE PERKINS ENGINES TIANJIN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the known technology, reducing the noise of the engine gear chamber is generally achieved by improving the machining accuracy of the gear, making a gear chamber housing with a complex structure, etc., which greatly increases the production and processing costs of the engine, and the gear chamber with a complex structure Shell is not easy to make

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  • A gear chamber layered noise reduction structure
  • A gear chamber layered noise reduction structure

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Embodiment Construction

[0011] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0012] see figure 1 , a gear chamber layered noise reduction structure, comprising a gear chamber casing 1, the layered noise reduction structure is mounted on the outer surface of the gear chamber casing 1 through fasteners. The layered construction structure is composed of two layers of sound insulation boards 2 and one layer of sound insulation mat 3 , wherein the sound insulation mat 3 is located between the two layers of sound insulation boards 2 . The sound insulation board 2 is a plate body made of sound insulation material. The sound insulation material is dense and has no pores or gaps, and has a relatively large weight. The sound insulation material can weaken the transmitted sound energy and block the transmission of sound; It is ...

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Abstract

The invention relates to a layered noise-reducing structure of a gear chamber, which includes a gear chamber casing, and is characterized in that: a layered sound-insulation structure composed of a sound-insulating board and a sound-insulating pad is arranged on the outer surface of the gear chamber casing. The advantages are: the present invention can effectively improve the noise reduction effect of the gear chamber by adding a layered noise reduction structure on the outer surface of the gear chamber housing, and compared with the noise reduction methods in the prior art, it also has simple structure, It has the advantages of easy processing and production and low production cost.

Description

technical field [0001] The invention belongs to the technical field of engines, in particular to a gear chamber layered noise reduction structure. Background technique [0002] At present, engine noise is a very important parameter to measure engine quality. In the known technology, reducing the noise of the engine gear chamber is generally achieved by improving the machining accuracy of the gear and making a gear chamber housing with a complex structure, which greatly increases the production and processing costs of the engine, and the gear chamber with a complex structure The shell is not easy to manufacture. Contents of the invention [0003] In order to solve the technical problems in the known technology, the present invention provides a layered noise-reducing structure of an engine gear chamber with simple structure, easy processing and production, good noise-reducing effect, and can reduce the production cost of the engine. [0004] The technical solution adopted ...

Claims

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Application Information

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IPC IPC(8): F02F7/00F02B77/13B32B33/00
Inventor 史俊欢牛爱武刘璇周逢源刘华民
Owner BRITISH JOINT VENTURE PERKINS ENGINES TIANJIN