KR20110125693A

KR20110125693A - Muffler bracket

Info

Publication number: KR20110125693A
Application number: KR1020100045183A
Authority: KR
Inventors: 김형택; 이주희; 주원호
Original assignee: 현대중공업 주식회사
Priority date: 2010-05-14
Filing date: 2010-05-14
Publication date: 2011-11-22

Abstract

The present invention relates to a heavy-duty muffler bracket, and an object thereof is to provide a heavy-duty muffler bracket that can more stably support the muffler to reduce the occurrence of vibration or noise. The present invention for this purpose is in the heavy-duty muffler bracket consisting of a fixing bracket which is fixedly installed on the structure provided in the heavy equipment coupled to the bracket and the coupling bracket and the damper is installed on the side of the muffler, the connection bracket The technical gist of the present invention relates to a heavy duty muffler bracket which is installed on a horizontal line passing through the center of gravity of the muffler side, and the muffler bracket is configured to support the center of both sides of the muffler.

Description

Heavy duty muffler bracket {Muffler bracket}

The present invention relates to a heavy-duty muffler bracket, and more particularly to a heavy-duty muffler bracket to reduce the vibration and noise of the muffler through the structural improvement of the bracket.

In general, the muffler provided in the heavy equipment is connected to the exhaust manifold of the engine is introduced into the exhaust gas discharged from the engine, it provides a function to reduce the noise generated from the incoming exhaust gas.

The muffler is made of metal, and is formed in a cylindrical or rectangular box shape, and various structures are provided therein for reducing noise.

Such a muffler is installed in a space provided in heavy equipment together with other equipment for exhaust, and a muffler bracket is used for firmly fixing the muffler into which high-pressure exhaust gas flows.

The conventional muffler bracket is fixed to the structure provided in the heavy equipment while supporting the upper ends of both sides of the muffler is configured to fix the muffler.

More specifically, the muffler bracket is composed of a connecting bracket, a damper and a fixing bracket, wherein the connecting bracket is fixedly installed on both sides of the muffler, and the fixing bracket is coupled with the connecting bracket via a damper and heavy equipment. Installed in the structure provided in.

However, the muffler bracket having the above structure has a problem of failing to stably support the muffler in the process of introducing high pressure exhaust gas into the muffler, thereby increasing the generation of vibration or noise.

The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a heavy-duty muffler bracket to more stably support the muffler to reduce the occurrence of vibration or noise.

Heavy duty muffler bracket of the present invention to achieve the object as described above and to perform the problem to eliminate the conventional defects are coupled to the coupling bracket is fixed to the side of the muffler, the coupling bracket and the damper through the heavy equipment In the heavy-duty muffler bracket consisting of a fixed bracket is fixed to the structure provided in the connection, the connecting bracket is installed on a horizontal line passing through the center of gravity of the muffler side, characterized in that the muffler bracket is configured to support the center of both sides of the muffler do.

On the other hand, the damper is provided with a pair, the pair of dampers provided are arranged to have a mutually symmetrical structure around a vertical line passing through the center of gravity.

On the other hand, the fixed bracket is a horizontal member coupled to the connecting bracket via a damper; And a pair of vertical members extending upward from both ends of the horizontal member and fixed to the structure.

According to the present invention having the above characteristics, the muffler bracket supports the central portions of both sides of the muffler to effectively alleviate the vibration caused by the high pressure exhaust gas, thereby enhancing the effect of the muffler's attenuation, and Damage can be prevented.

1 is a perspective view of a muffler to which a muffler bracket is applied according to a preferred embodiment of the present invention;
2 is a side view of the muffler shown in FIG. 1, FIG.
3 is an exploded perspective view of the muffler bracket according to the present invention;
Figure 4 is a graph showing the vibration measurement results of a conventional muffler and a muffler applied to the muffler bracket according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a muffler to which a muffler bracket is applied according to a preferred embodiment of the present invention, FIG. 2 is a side view of the muffler shown in FIG. 1, and FIG. 3 is an exploded perspective view of the muffler bracket according to the present invention.

The heavy-duty muffler bracket 100 according to the preferred embodiment of the present invention supports both central portions of the muffler 10 in supporting the muffler 10 and further improves the structural stability of the muffler bracket 100 itself, In order to reduce the vibration generated in the (10), it is composed of a connecting bracket 110, a pair of dampers 120, and a fixing bracket 130, respectively installed on both sides of the muffler 10 muffler Support (10).

The connection bracket 110 is to be fixed to the side of the muffler (10). The connection bracket 110 is a fixing member 111 fixed to the side of the muffler 10, and a coupling member protruding from the fixing member 111 in the outward direction of the muffler 10 and coupled to the damper 120 ( 112). Of course, the fixing member 111 and the coupling member 112 are integrally formed, and in the case of the fixing member 111, the fixing member 111 is fixed to the muffler 10 by bolting.

The connection bracket 110 configured as described above is installed to be positioned on the horizontal line L1 passing through the center of gravity point P of the side of the muffler 10. Preferably, the center of the coupling member 112 is positioned on the horizontal line L1. It is installed to be located at.

The damper 120 is disposed between the connection bracket 110 and the fixing bracket 130 to reduce the transmission of vibration or shock by absorbing vibration or shock by itself. The damper 120 is made of rubber, it is made of a cylindrical structure is fixed between the two brackets by a bolt pillar 140 for fastening the connection bracket 110 and the fixing bracket 130.

On the other hand, the damper 120 is provided with a pair, the pair of dampers 120 are provided to have a mutually symmetrical structure around the vertical line (L2) passing through the center of gravity (P) of the side of the muffler (10). As such, the pair of dampers 120 are disposed to have a symmetrical structure with respect to the vertical line L2, so that the left and right balance of the bracket is uniformly maintained, thereby improving structural stability of the bracket.

The fixing bracket 130 is coupled to the connection bracket 110 via the damper 120, and is fixed to the structure 20 provided in the heavy equipment. The fixing bracket 130 is a vertical member fixed to the structure 20 provided in the heavy equipment is formed to extend in the upward direction at both ends of the horizontal member 131 is coupled to the connecting bracket 110, the horizontal member 131 The member 132 is comprised.

The fixing bracket 130 also maintains the left and right balance uniformly to improve the structural stability of the bracket.

4 is a graph showing vibration measurement results of a conventional muffler and a muffler to which a muffler bracket according to the present invention is applied.

The results of FIG. 4 were obtained through vibration measurement experiments under the following conditions. The vibration acceleration was measured in a vertical direction in a bracket directly connected to the muffler, and the velocity response was analyzed by integrating the acceleration signal over time. The engine speed was measured at an interval of about 30 to 50 rpm from 1200 rpm to 2200 rpm.

As can be seen in the graph of Figure 4, in the case of the muffler according to the present invention, the vibration response level is significantly reduced as compared with the prior art. (Maximum 25mm / s → 6mm / s) In addition, the vibration peak due to resonance appearing in the conventional 1860 rpm is also present In the muffler according to the disappearance can be seen. This is because the mode coupling effect disappeared as the vertical position of the mount was positioned exactly at the center of gravity position. That is, it can be seen that the muffler bracket structure in which the position of the mount is disposed at the same height as the center of gravity cancels the mode ductility effect, and as a result, the vibration response is greatly reduced.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

<Explanation of symbols for the main parts of the drawings>
10: muffler 20: structure
(110): connecting bracket (120): damper
(130): fixing bracket (131): horizontal member
(132): vertical member

Claims

The connection bracket 110 is fixedly installed on the side of the muffler 10, and the fixing bracket is coupled to the coupling bracket 110 and the damper 120 via a medium and fixed to the structure 20 provided in the heavy equipment ( 130) heavy duty muffler bracket,
The connecting bracket 110 is installed so as to be located on the horizontal line (L1) passing through the center of gravity (P) of the muffler (10) side, heavy muffler characterized in that the muffler bracket is configured to support the center of both sides of the muffler (10) Brackets.

The method of claim 1,
The damper 120 is provided with a pair, a pair of dampers provided with a heavy duty muffler bracket, characterized in that arranged to have a mutually symmetrical structure around the vertical line (L2) passing through the center of gravity (P).

The method of claim 1, wherein the fixing bracket 130,
A horizontal member 131 coupled to the connection bracket 110 via the damper 120; And
Heavy duty muffler bracket, characterized in that consisting of a pair of vertical members 132 extending upward from both ends of the horizontal member 131 is fixed to the structure (20).