Special muffler for ultra-light small cold cutting machine
A technology of cold cutting machine and muffler, which is applied in the direction of machines/engines, mufflers, mechanical equipment, etc., can solve the problems of short service life, poor muffler effect, complex structure, etc., and achieve long service life, avoid muffler effect, The effect of high sensitivity
Inactive Publication Date: 2016-09-28
江苏鑫国精密模具有限公司
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Problems solved by technology
[0006] In view of the above deficiencies, the purpose of the present invention is to provide a special muffler for ultra-light small cold cutting machines to solve the problems in the prior art of complex structure, high-temperature oxidized sound-absorbing filler, frequent maintenance, poor muffler effect, and short service life
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[0028] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.
[0029] refer to figure 1 and figure 2 As shown, the special muffler for ultra-light small cold cutting machine of the present invention includes a shell 1, the shell 1 is made of a metal rubber plate 101, the outer surface is bonded with aluminum fiber board 102, the inner surface is bonded with aluminum fiber board 102 and then foam board 103 is composited Formed, the metal rubber plate 101, the aluminum fiber plate 102 and the foam plate 103 inside the housing 1 are all provided with perforations 104:
[0030] The housing 1 is provided with an air inlet chamber 2 and an air outlet chamber 3, and the communication port 7 in the air inlet chamber 2 and the air outlet chamber 3 is provided ...
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The invention discloses a special silencer for an ultra-light small-sized cold cutting machine. The silencer comprises a shell, wherein an air inlet cavity and an air outlet cavity are formed in the shell; an air inlet and an air outlet are formed in corresponding positions of the air inlet cavity and the air outlet cavity in the shell respectively; a partition is arranged between the air inlet cavity and the air outlet cavity; a communicating opening is formed in the partition; a movable plug is adapted into the communicating opening; the lower part of the movable plug is connected with one end of an elastic element, and the other end of the elastic element is connected with a floater; a pool formed in the air outlet cavity is filled with liquid; the floater is placed on the liquid level in the pool in a floating manner. The silencer adopts a sound absorbing material in the shell to absorb noise, and adopts vibration of the movable plug and the floater to dissipate noise energy, and fluctuation of the liquid level can also dissipate noise energy; under the action of elasticity of the elastic element and buoyancy of the floater, the movable plug can move upwards to block the communicating opening quickly, and the structure is high in sensitivity and can prevent noise and gas backstreaming; the silencer is simple in structure, good in silence effect, low in maintenance frequency and long in service cycle, and avoids high-temperature oxidation of the sound-absorbing filling material.
Description
technical field [0001] The invention relates to the technical field of cold cutting machine equipment manufacturing, in particular to a special muffler for an ultra-light small cold cutting machine. Background technique [0002] The muffler is a device that uses sound-absorbing materials to prevent or reduce sound transmission, and is an important measure to eliminate aerodynamic noise. The muffler can block the propagation of sound waves and allow airflow to pass through, which is an effective tool for noise control. Sound-absorbing material is a material with strong sound energy absorption and noise reduction performance. It absorbs incident sound energy by virtue of its own porosity, thin film effect or resonance effect. It is one of the components of ultrasonic inspection equipment. The acoustic material should match the acoustic characteristic impedance of the surrounding sound transmission medium, so that the sound energy can enter the sound-absorbing material without...
Claims
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IPC IPC(8): F01N3/04
Inventor 伏海峰王群
Owner 江苏鑫国精密模具有限公司