WO2014007408A1 - Construction machine on which counterweight provided with muffler is mounted - Google Patents

Construction machine on which counterweight provided with muffler is mounted Download PDF

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Publication number
WO2014007408A1
WO2014007408A1 PCT/KR2012/005232 KR2012005232W WO2014007408A1 WO 2014007408 A1 WO2014007408 A1 WO 2014007408A1 KR 2012005232 W KR2012005232 W KR 2012005232W WO 2014007408 A1 WO2014007408 A1 WO 2014007408A1
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WO
WIPO (PCT)
Prior art keywords
silencer
counterweight
exhaust gas
upper frame
muffler
Prior art date
Application number
PCT/KR2012/005232
Other languages
French (fr)
Korean (ko)
Inventor
김연태
Original Assignee
볼보 컨스트럭션 이큅먼트 에이비
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 볼보 컨스트럭션 이큅먼트 에이비 filed Critical 볼보 컨스트럭션 이큅먼트 에이비
Priority to US14/408,005 priority Critical patent/US20150176246A1/en
Priority to CN201280074242.4A priority patent/CN104379844A/en
Priority to PCT/KR2012/005232 priority patent/WO2014007408A1/en
Priority to GB1421996.8A priority patent/GB2520638A/en
Priority to KR1020147036767A priority patent/KR20150032540A/en
Priority to DE201211006639 priority patent/DE112012006639T5/en
Publication of WO2014007408A1 publication Critical patent/WO2014007408A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/18—Counterweights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/001—Gas flow channels or gas chambers being at least partly formed in the structural parts of the engine or machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives

Definitions

  • the present invention relates to a construction machine equipped with a counterweight equipped with a silencer, and more particularly, provided with a muffler (muffler) mounted inside the counterweight to reduce the high-temperature, high-pressure exhaust gas noise emitted from the engine It relates to a construction machine is equipped with a counter weight.
  • a muffler muffler
  • the lower traveling body 1 The lower traveling body 1,
  • the cab 3 and the engine compartment 4 mounted on the upper frame 2,
  • a work device 11 which is rotatably mounted at the tip of the upper frame 2 and consists of a boom 6, an arm 8, and a bucket 10 driven by respective hydraulic cylinders 5, 7, 9.
  • a boom 6, an arm 8, and a bucket 10 driven by respective hydraulic cylinders 5, 7, 9.
  • Construction machinery silencer 17 according to the prior art shown in Figure 2,
  • a cowl frame 16 that forms an engine compartment side wall in which an engine, a pump, and the like are internally installed.
  • a silencer body 14 in which a noise reduction device made of a baffle plate, a pipe, or the like is installed so as to reduce the noise by reducing the pressure, and an exhaust pipe 15 for discharging the exhaust gas with reduced noise to the outside.
  • the silencer 17 as described above is mounted to the cowl frame 16. At this time, due to the constraint on the diffuser position of the muffler 17, the muffler is located on the upper portion of the cowl frame 16. As a result, the center of gravity of the silencer is increased, thereby lowering the structural stability of the cowl frame 16.
  • the narrow space inside the engine compartment cannot be effectively utilized (for example, a work space for maintaining a hydraulic pump or the like is not sufficient. ).
  • the weight and the size of the silencer are increased due to the expansion of the internal volume of the silencer so as to increase the efficiency of reducing the exhaust gas noise due to the exhaust gas regulation of the construction machine.
  • Embodiment of the present invention by mounting a silencer inside the counterweight to secure a work space inside the engine compartment, provided with a silencer to facilitate the worker access to improve the workability when maintaining the hydraulic pump, etc. It relates to construction machinery on which counterweights are mounted.
  • Embodiments of the present invention relate to a construction machine equipped with a counterweight equipped with a muffler, which separates the silencer through which hot exhaust gas passes from flammable materials such as sound absorbing materials, thereby reducing the risk of fire during equipment operation. .
  • Embodiments of the present invention relate to a construction machine equipped with a counterweight equipped with a silencer to ensure structural stability of the cowl frame since it is isolated from the cowl frame.
  • An upper frame rotatably mounted on the lower traveling body
  • An intake pipe that communicates with the exhaust pipe of the engine mounted in the engine compartment, into which exhaust gas flows, a silencer body that reduces the incoming exhaust gas noise by an internal noise reduction device, and exhausts the exhaust gas with reduced noise outside.
  • a work device rotatably mounted at the tip of the upper frame and composed of a boom, an arm and a bucket driven by respective hydraulic cylinders,
  • the counterweight is mounted to the rear of the upper frame, the counterweight is provided with a space for mounting the silencer.
  • the silencer mounting position inside the counterweight by moving the silencer mounting position inside the counterweight, the space is secured inside the engine compartment, and the operator can easily access the hydraulic pump, etc., thereby improving workability. There is.
  • the silencer of the weight body is isolated from the cowl frame, it is unnecessary to secure additional mechanical strength of the cowl frame, and the center of gravity of the silencer is lowered, thereby ensuring the structural stability of the cowl frame.
  • FIG. 1 is a schematic view of an excavator to which the present invention is applied;
  • FIG. 2 is a schematic diagram showing that the silencer for construction machinery according to the prior art is mounted on the cowl frame
  • FIG. 3 is a cross-sectional view showing that the silencer is mounted on the counterweight in the construction machine equipped with a counterweight equipped with a silencer according to an embodiment of the present invention
  • Figure 4 is a perspective view showing that the silencer is mounted on the counterweight in the construction machine equipped with a counterweight equipped with a silencer according to an embodiment of the present invention.
  • Construction machine equipped with a counterweight equipped with a silencer according to an embodiment of the present invention shown in Figure 3 and 4,
  • the lower traveling body 1 The lower traveling body 1,
  • the cab 3 and the engine compartment 4 mounted on the upper frame 2,
  • An intake pipe (indicated by reference numeral “13” in FIG. 2) in which exhaust gas flows in communication with an exhaust pipe of an engine mounted in the engine compartment 4 and internal noise reduction device (baffle plate)
  • a silencer body (17) comprising a silencer main body (14) for reducing the exhaust gas and an exhaust pipe (15) for discharging the exhaust gas with reduced noise to the outside;
  • a work device 11 which is rotatably mounted at the tip of the upper frame 2 and consists of a boom 6, an arm 8, and a bucket 10 driven by respective hydraulic cylinders 5, 7, 9.
  • a boom 6, an arm 8, and a bucket 10 driven by respective hydraulic cylinders 5, 7, 9.
  • reference numeral 19 is a cover mounted to prevent foreign substances such as rainwater from entering the silencer mounting space 18.
  • the silencer 17 including the aforementioned suction pipe, the silencer main body 14, and the exhaust pipe 15 is mounted in the silencer mounting space 18 formed inside the counterweight 12a. Will be accepted.
  • the exhaust gas discharged during engine operation flows into the muffler main body 14 through a suction pipe communicating with the exhaust pipe of the engine, and reduces the exhaust gas noise by the internal noise reduction device, thereby reducing the exhaust gas. Since the structure of the silencer 17 itself which discharges to the outside via the exhaust pipe 15 is the technical content used in the field, the detailed description of these structures is abbreviate
  • the silencer 17 is mounted in the silencer mounting space 18 formed in the counterweight 12a, the space occupied by the silencer 17 in the engine compartment 4 is used as a work space.
  • components such as a hydraulic hose, can be efficiently arrange
  • the mounting position of the muffler 17 of the heavy body is moved from the cowl frame 16 to the counterweight 12a, it is unnecessary to secure additional mechanical strength of the cowl frame 16, and the center of gravity of the muffler 17 is the cowl. It is relatively lower than the position mounted on the frame 16, the silencer 17 is disposed behind the equipment can increase the stability during work.
  • the silencer 17 through which the high-temperature exhaust gas passes when the equipment is operated is moved to the counterweight 12a far from the flammable material such as the sound absorbing material mounted in the engine compartment 4, the fire caused by the combustion of the flammable material The risk of occurrence can be reduced.
  • the silencer mounting position by moving the silencer mounting position to the inside of the counterweight, a space is secured inside the engine compartment, so that an operator can easily access the hydraulic pump or the like when maintaining the hydraulic pump.
  • the silencer since the silencer is separated from the engine compartment in which the flammable material is installed, there is an effect of reducing the risk of fire when operating the equipment.
  • the silencer since the silencer is isolated from the cowl frame, it is not necessary to secure additional mechanical strength of the cowl frame and the center of gravity of the silencer is lowered, thereby ensuring the structural stability of the cowl frame.

Abstract

Disclosed is a construction machine in which a muffler for reducing the noise of exhaust gas emitted from the engine is mounted inside a counterweight. According to the present invention, the construction machine on which a counterweight having a muffler is mounted comprises: an upper frame pivotably mounted on a lower moving body; a driver compartment and an engine compartment mounted on the upper frame; a suction pipe communicating with the exhaust pipe of an engine mounted in the engine compartment, and into which exhaust gas flows; a muffler main body for reducing the noise of inflowing exhaust gas by means of a noise reducing device therein; a muffler comprising an exhaust pipe which emits the muffled exhaust gas to the outside; a working tool pivotably mounted on the front end of the upper frame and consisting of a boom, an arm, and a bucket which are respectively driven by a hydraulic cylinder; and a counterweight mounted on the rear end of the upper frame and having a compartment formed so as to mount the muffler therein.

Description

소음기가 구비된 카운터웨이트가 장착되는 건설기계Construction machinery equipped with counterweights with silencers
본 발명은 소음기가 구비된 카운터웨이트가 장착되는 건설기계에 관한 것으로, 더욱 상세하게는 엔진으로부터 배출되는 고온, 고압의 배기가스 소음을 저감시키는 소음기(muffler)를 카운터웨이트 내부에 장착시킨 소음기가 구비된 카운터웨이트가 장착되는 건설기계에 관한 것이다.The present invention relates to a construction machine equipped with a counterweight equipped with a silencer, and more particularly, provided with a muffler (muffler) mounted inside the counterweight to reduce the high-temperature, high-pressure exhaust gas noise emitted from the engine It relates to a construction machine is equipped with a counter weight.
도 1에 도시된 본 발명이 적용되는 굴삭기는,Excavator to which the present invention shown in Figure 1 is applied,
하부 주행체(1)와,The lower traveling body 1,
하부 주행체(1)에 선회가능하게 탑재되는 상부 프레임(2)과,An upper frame 2 rotatably mounted on the lower traveling body 1,
상부 프레임(2)에 장착되는 운전실(3) 및 엔진실(4)과,The cab 3 and the engine compartment 4 mounted on the upper frame 2,
상부 프레임(2)의 선단에 회동가능하게 장착되고, 각각의 유압실린더(5,7,9)에 의해 구동되는 붐(6), 아암(8), 버킷(10)으로 이뤄지는 작업장치(11)와,A work device 11 which is rotatably mounted at the tip of the upper frame 2 and consists of a boom 6, an arm 8, and a bucket 10 driven by respective hydraulic cylinders 5, 7, 9. Wow,
상부 프레임(2) 후방에 장착되는 카운터웨이트(12)를 구비한다.It has a counterweight 12 mounted behind the upper frame 2.
도 2에 도시된 종래 기술에 의한 건설기계용 소음기(17)는, Construction machinery silencer 17 according to the prior art shown in Figure 2,
엔진, 펌프 등이 내설되는 엔진실 측벽을 형성하는 카울 프레임(16)에 장착되며, 엔진의 배기관에 연결되어 고온, 고압의 배기가스가 유입되는 흡입 파이프(13)와, 유입된 배기가스의 온도와 압력을 낮추어 소음을 감쇄시키도록 배플 플레이트, 파이프 등으로 이뤄지는 소음저감장치가 내설되는 소음기 본체(14)와, 소음이 감소된 배기가스를 외부로 배출시키는 배기 파이프(15)를 구비하여 이뤄진다.It is mounted on a cowl frame 16 that forms an engine compartment side wall in which an engine, a pump, and the like are internally installed. And a silencer body 14 in which a noise reduction device made of a baffle plate, a pipe, or the like is installed so as to reduce the noise by reducing the pressure, and an exhaust pipe 15 for discharging the exhaust gas with reduced noise to the outside.
전술한 바와 같은 소음기(17)는 카울 프레임(16)에 장착된다. 이때 소음기(17)의 디퓨저 위치상 제약으로 인해 소음기가 카울 프레임(16)의 상부에 위치하게 된다. 이로 인해 소음기의 무게중심이 높아지게 되어 카울 프레임(16)의 구조적 안정성이 떨어지게 된다.The silencer 17 as described above is mounted to the cowl frame 16. At this time, due to the constraint on the diffuser position of the muffler 17, the muffler is located on the upper portion of the cowl frame 16. As a result, the center of gravity of the silencer is increased, thereby lowering the structural stability of the cowl frame 16.
또한, 전술한 카울 프레임(16)에 장착되는 소음기(17) 위치로 인해 엔진실 내부의 협소한 공간을 효율적으로 활용할 수 없게 된다(일 예로서 유압펌프 등을 정비하기 위한 작업공간이 충분하지 못함). 또한 장비 가동시 고온, 고압의 배기가스로 인해 엔진실(4) 내부의 흡음재 등이 배기파이프에 인접될 경우 연소되는 화재 위험성이 높은 문제점이 있다.In addition, due to the position of the silencer 17 mounted on the cowl frame 16 described above, the narrow space inside the engine compartment cannot be effectively utilized (for example, a work space for maintaining a hydraulic pump or the like is not sufficient. ). In addition, there is a high risk of fire that burns when the sound absorbing material in the engine compartment 4 is adjacent to the exhaust pipe due to the exhaust gas of high temperature and high pressure during operation of the equipment.
또한, 건설기계의 배기가스 규제로 인해 배기가스 소음을 저감시키는 효율을 높일 수 있도록, 소음기의 내부 체적 확대로 인해 이의 중량, 외형 사이즈가 증대된다. 이로 인해 카울 프레임(16)의 기계적 강도가 추가로 요구되는 문제점을 갖는다.In addition, the weight and the size of the silencer are increased due to the expansion of the internal volume of the silencer so as to increase the efficiency of reducing the exhaust gas noise due to the exhaust gas regulation of the construction machine. This has the problem that the mechanical strength of the cowl frame 16 is further required.
본 발명의 실시예는, 소음기를 카운터웨이트 내부에 장착시킴에 따라 엔진실 내부에 작업공간을 확보하여, 유압펌프 등을 정비시 작업자 접근이 용이하여 작업성을 향상시킬 수 있도록 한 소음기가 구비된 카운터웨이트가 장착되는 건설기계와 관련된다.Embodiment of the present invention, by mounting a silencer inside the counterweight to secure a work space inside the engine compartment, provided with a silencer to facilitate the worker access to improve the workability when maintaining the hydraulic pump, etc. It relates to construction machinery on which counterweights are mounted.
본 발명의 실시예는, 고온의 배기가스가 통과되는 소음기를 흡음재 등의 인화성 물질과 분리시키므로, 장비 가동시 화재발생 위험성을 줄일 수 있도록 한 소음기가 구비된 카운터웨이트가 장착되는 건설기계와 관련된다.Embodiments of the present invention relate to a construction machine equipped with a counterweight equipped with a muffler, which separates the silencer through which hot exhaust gas passes from flammable materials such as sound absorbing materials, thereby reducing the risk of fire during equipment operation. .
본 발명의 실시예는, 중량체의 소음기를 카울 프레임으로부터 격리시키므로카울 프레임의 구조적 안정성을 확보할 수 있도록 한 소음기가 구비된 카운터웨이트가 장착되는 건설기계와 관련된다.Embodiments of the present invention relate to a construction machine equipped with a counterweight equipped with a silencer to ensure structural stability of the cowl frame since it is isolated from the cowl frame.
본 발명의 일 실시예에 의한 소음기가 구비된 카운터웨이트가 장착되는 건설기계는,Construction machine equipped with a counterweight equipped with a silencer according to an embodiment of the present invention,
하부 주행체와,Undercarriage,
하부 주행체에 선회가능하게 탑재되는 상부 프레임과,An upper frame rotatably mounted on the lower traveling body,
상부 프레임에 장착되는 운전실 및 엔진실과,Cab and engine compartment mounted on the upper frame,
엔진실에 장착되는 엔진의 배기관에 연통되어 배기가스가 유입되는 흡입 파이프와, 유입되는 배기가스 소음을 내부의 소음저감장치에 의해 저감시키는 소음기 본체와, 소음이 저감된 배기가스를 외부로 배출시키는 배기 파이프로 이뤄지는 소음기와,An intake pipe that communicates with the exhaust pipe of the engine mounted in the engine compartment, into which exhaust gas flows, a silencer body that reduces the incoming exhaust gas noise by an internal noise reduction device, and exhausts the exhaust gas with reduced noise outside. A silencer made of exhaust pipe,
상부 프레임의 선단에 회동가능하게 장착되고, 각각의 유압실린더에 의해 구동되는 붐, 아암, 버킷으로 이뤄지는 작업장치와,A work device rotatably mounted at the tip of the upper frame and composed of a boom, an arm and a bucket driven by respective hydraulic cylinders,
상부 프레임 후방에 장착되고, 소음기 장착용 공간부가 형성되는 카운터웨이트를 구비한다.It is mounted to the rear of the upper frame, the counterweight is provided with a space for mounting the silencer.
전술한 구성을 갖는 본 발명에 따르면, 소음기 장착위치를 카운터웨이트 내부로 이동시킴에 따라 엔진실 내부에 공간이 확보되어, 유압펌프 등을 정비시 작업자 접근이 용이하므로 작업성을 향상시킬 수 있는 효과가 있다.According to the present invention having the above-described configuration, by moving the silencer mounting position inside the counterweight, the space is secured inside the engine compartment, and the operator can easily access the hydraulic pump, etc., thereby improving workability. There is.
또한, 고온의 배기가스가 통과되는 소음기를 흡음재 등의 인화성 물질이 장착되는 엔진실로부터 분리시키므로, 장비 가동시 화재발생 위험성을 줄일 수 있는 효과가 있다.In addition, since the silencer through which the hot exhaust gas passes is separated from the engine compartment in which flammable materials such as sound absorbing materials are mounted, there is an effect of reducing the risk of fire during operation of the equipment.
또한, 중량체의 소음기를 카울 프레임으로부터 격리시키므로 카울 프레임의 추가적인 기계적강도 확보가 불필요하고, 소음기의 무게중심이 낮아지므로 카울 프레임의 구조적 안정성을 확보할 수 있는 효과가 있다.In addition, since the silencer of the weight body is isolated from the cowl frame, it is unnecessary to secure additional mechanical strength of the cowl frame, and the center of gravity of the silencer is lowered, thereby ensuring the structural stability of the cowl frame.
도 1은 본 발명이 적용되는 굴삭기의 개략도,1 is a schematic view of an excavator to which the present invention is applied;
도 2는 종래 기술에 의한 건설기계용 소음기를 카울프레임에 장착됨을 보여주는 개략도,Figure 2 is a schematic diagram showing that the silencer for construction machinery according to the prior art is mounted on the cowl frame,
도 3은 본 발명의 일 실시예에 의한 소음기가 구비된 카운터웨이트가 장착되는 건설기계에 있어서, 카운터웨이트에 소음기 장착됨을 보여주는 단면도,3 is a cross-sectional view showing that the silencer is mounted on the counterweight in the construction machine equipped with a counterweight equipped with a silencer according to an embodiment of the present invention;
도 4는 본 발명의 일 실시예에 의한 소음기가 구비된 카운터웨이트가 장착되는 건설기계에서, 카운터웨이트에 소음기 장착됨을 보여주는 사시도이다.Figure 4 is a perspective view showing that the silencer is mounted on the counterweight in the construction machine equipped with a counterweight equipped with a silencer according to an embodiment of the present invention.
〈도면의 주요 부분에 대한 참조 부호의 설명〉<Explanation of reference numerals for the main parts of the drawings>
12a; 카운터웨이트12a; Counterweight
13; 흡입 파이프13; Suction pipe
14; 소음기 본체14; Silencer body
15; 배기 파이프15; Exhaust pipe
17; 소음기17; silencer
18; 소음기 장착용 공간부18; Space for mounting silencer
19; 커버19; cover
이하, 본 발명의 바람직한 실시예를 첨부도면을 참조하여 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는 것이다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to explain in detail enough to enable those skilled in the art to easily carry out the invention, and thus It is not intended that the technical spirit and scope of the invention be limited.
도 3 및 도 4에 도시된 본 발명의 일 실시예에 의한 소음기가 구비된 카운터웨이트가 장착되는 건설기계는,Construction machine equipped with a counterweight equipped with a silencer according to an embodiment of the present invention shown in Figure 3 and 4,
하부 주행체(1)와,The lower traveling body 1,
하부 주행체(1)에 선회가능하게 탑재되는 상부 프레임(2)과,An upper frame 2 rotatably mounted on the lower traveling body 1,
상부 프레임(2)에 장착되는 운전실(3) 및 엔진실(4)과,The cab 3 and the engine compartment 4 mounted on the upper frame 2,
엔진실(4)에 장착되는 엔진의 배기관에 연통되어 배기가스가 유입되는 흡입 파이프(도 2에 도면부호 "13"으로 표기됨)와, 유입되는 배기가스 소음을 내부의 소음저감장치(배플 플레이트, 파이프 등을 말함)저감시키는 소음기 본체(14)와, 소음이 저감된 배기가스를 외부로 배출시키는 배기 파이프(15)로 이뤄지는 소음기(17)와,An intake pipe (indicated by reference numeral “13” in FIG. 2) in which exhaust gas flows in communication with an exhaust pipe of an engine mounted in the engine compartment 4 and internal noise reduction device (baffle plate) A silencer body (17) comprising a silencer main body (14) for reducing the exhaust gas and an exhaust pipe (15) for discharging the exhaust gas with reduced noise to the outside;
상부 프레임(2)의 선단에 회동가능하게 장착되고, 각각의 유압실린더(5,7,9)에 의해 구동되는 붐(6), 아암(8), 버킷(10)으로 이뤄지는 작업장치(11)와,A work device 11 which is rotatably mounted at the tip of the upper frame 2 and consists of a boom 6, an arm 8, and a bucket 10 driven by respective hydraulic cylinders 5, 7, 9. Wow,
상부 프레임(2) 후방에 장착되고, 소음기 장착용 공간부(18)가 형성되는 카운터웨이트(12a)를 구비한다.It is provided in the back of the upper frame 2, and has the counterweight 12a in which the silencer mounting space part 18 is formed.
도면중 미 설명부호 19는 소음기 장착용 공간부(18)에 빗물 등의 이물질 유입되는 것을 방지하도록 장착되는 커버이다.In the figure, reference numeral 19 is a cover mounted to prevent foreign substances such as rainwater from entering the silencer mounting space 18.
이때, 전술한 흡입 파이프, 소음기 본체(14) 및 배기 파이프(15)로 이뤄진 소음기(17)가 수용되도록 소음기 장착용 공간부(18)가 내부에 구비된 카운터웨이트(12a)를 제외한 구성은, 도 1에 도시된 건설기계의 구성과 동일하므로 이들 구성에 대한 상세한 설명은 생략하고, 중복되는 구성에 대한 도면부호는 동일하게 표기한다.At this time, the configuration except for the counterweight 12a provided with a silencer mounting space 18 therein to accommodate the silencer 17 made of the above-described suction pipe, the silencer main body 14 and the exhaust pipe 15, Since the configuration of the construction machine shown in Figure 1 is the same as the detailed description of these configurations will be omitted, and the reference numerals for the overlapping configuration is the same.
이하에서, 본 발명의 일 실시예에 의한 소음기가 구비된 카운터웨이트가 장착되는 건설기계의 사용예를 첨부도면을 참조하여 상세하게 설명한다.Hereinafter, a use example of a construction machine equipped with a counterweight equipped with a silencer according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 3 및 도 4에서와 같이, 전술한 흡입 파이프, 소음기 본체(14) 및 배기 파이프(15)로 이뤄진 소음기(17)를 카운터웨이트(12a) 내부에 형성된 소음기 장착용 공간부(18)에 장착하여 수용하게 된다.As shown in FIGS. 3 and 4, the silencer 17 including the aforementioned suction pipe, the silencer main body 14, and the exhaust pipe 15 is mounted in the silencer mounting space 18 formed inside the counterweight 12a. Will be accepted.
이때, 엔진 가동시 배출되는 배기가스가 엔진의 배기관에 연통되는 흡입 파이프를 통해 소음기 본체(14)에 유입되고, 내부의 소음저감장치에 의해 배기가스 소음을 저감시키며, 소음이 저감된 배기가스를 배기 파이프(15)를 통해 외부로 배출시키는 소음기(17) 자체의 구성은, 당해분야에서 사용되는 기술내용이므로 이들 구성의 상세한 설명은 생략한다.At this time, the exhaust gas discharged during engine operation flows into the muffler main body 14 through a suction pipe communicating with the exhaust pipe of the engine, and reduces the exhaust gas noise by the internal noise reduction device, thereby reducing the exhaust gas. Since the structure of the silencer 17 itself which discharges to the outside via the exhaust pipe 15 is the technical content used in the field, the detailed description of these structures is abbreviate | omitted.
전술한 바와 같이 소음기(17)를 카운터웨이트(12a)에 형성된 소음기 장착용 공간부(18)에 장착시킴에 따라, 엔진실(4) 내에서 소음기(17)가 차지하는 공간을 작업공간으로 활용하므로, 유압펌프 등을 정비시 작업자 접근이 용이하여 작업성을 향상시킬 수 있다. 또한 엔진실(4) 내의 협소한 공간에 유압호스 등의 부품을 효율적으로 배치할 수 있다.As the silencer 17 is mounted in the silencer mounting space 18 formed in the counterweight 12a, the space occupied by the silencer 17 in the engine compartment 4 is used as a work space. In case of maintenance of hydraulic pump, it is easy to access worker and improve workability. Moreover, components, such as a hydraulic hose, can be efficiently arrange | positioned in the narrow space in the engine compartment 4.
또한, 중량체의 소음기(17) 장착위치를 카울 프레임(16)으로부터 카운터웨이트(12a)로 이동시키므로, 카울 프레임(16)의 추가적인 기계적 강도 확보가 불필요하고, 소음기(17)의 무게중심이 카울 프레임(16)에 장착된 위치보다 상대적으로 낮아지며, 소음기(17)가 장비 후방으로 배치되므로 작업시 안정성을 높일 수 있다.In addition, since the mounting position of the muffler 17 of the heavy body is moved from the cowl frame 16 to the counterweight 12a, it is unnecessary to secure additional mechanical strength of the cowl frame 16, and the center of gravity of the muffler 17 is the cowl. It is relatively lower than the position mounted on the frame 16, the silencer 17 is disposed behind the equipment can increase the stability during work.
또한, 장비 가동시 고온의 배기가스가 통과되는 소음기(17)를 엔진실(4) 내부에 장착된 흡음재 등의 인화성 물질로부터 멀리 떨어진 카운터웨이트(12a)로 이동시키므로, 인화성 물질의 연소로 인한 화재발생 위험을 줄일 수 있다.In addition, since the silencer 17 through which the high-temperature exhaust gas passes when the equipment is operated is moved to the counterweight 12a far from the flammable material such as the sound absorbing material mounted in the engine compartment 4, the fire caused by the combustion of the flammable material The risk of occurrence can be reduced.
전술한 구성을 갖는 본 발명에 따르면, 소음기 장착위치를 카운터웨이트 내부로 이동시킴에 따라 엔진실 내부에 공간이 확보되어 유압펌프 등을 정비시 작업자 접근이 용이한 효과가 있다. 또한 소음기를 인화성 물질이 장착되는 엔진실로부터 분리시키므로 장비 가동시 화재발생 위험성을 줄일 수 있는 효과가 있다. 또한 소음기를 카울 프레임으로부터 격리시키므로 카울 프레임의 추가적인 기계적강도 확보가 불필요하고 소음기의 무게중심이 낮아지므로 카울 프레임의 구조적 안정성을 확보할 수 있는 효과가 있다.According to the present invention having the above-described configuration, by moving the silencer mounting position to the inside of the counterweight, a space is secured inside the engine compartment, so that an operator can easily access the hydraulic pump or the like when maintaining the hydraulic pump. In addition, since the silencer is separated from the engine compartment in which the flammable material is installed, there is an effect of reducing the risk of fire when operating the equipment. In addition, since the silencer is isolated from the cowl frame, it is not necessary to secure additional mechanical strength of the cowl frame and the center of gravity of the silencer is lowered, thereby ensuring the structural stability of the cowl frame.

Claims (1)

  1. 하부 주행체와,Undercarriage,
    상기 하부 주행체에 선회가능하게 탑재되는 상부 프레임과,An upper frame pivotally mounted to the lower traveling body,
    상기 상부 프레임에 장착되는 운전실 및 엔진실과,An cab and an engine compartment mounted to the upper frame;
    상기 엔진실에 장착되는 엔진의 배기관에 연통되어 배기가스가 유입되는 흡입 파이프와, 유입되는 배기가스 소음을 내부의 소음저감장치에 의해 저감시키는 소음기 본체와, 소음이 저감된 배기가스를 외부로 배출시키는 배기 파이프로 이뤄지는 소음기와,The suction pipe which communicates with the exhaust pipe of the engine mounted in the engine compartment, the exhaust gas flows in, the silencer main body which reduces the incoming exhaust gas noise by the internal noise reduction device, and exhausts the exhaust gas with reduced noise to the outside. Silencer made of let down exhaust pipe,
    상기 상부 프레임의 선단에 회동가능하게 장착되고, 각각의 유압실린더에 의해 구동되는 붐, 아암, 버킷으로 이뤄지는 작업장치와,A work device rotatably mounted at the tip of the upper frame and composed of a boom, an arm and a bucket driven by respective hydraulic cylinders;
    상기 상부 프레임 후방에 장착되고, 상기 소음기 장착용 공간부가 형성되는 카운터웨이트를 구비하는 것을 특징으로 하는 소음기가 구비된 카운터웨이트가 장착되는 건설기계.And a counterweight mounted to the rear of the upper frame and provided with a counterweight having a silencer mounting space formed therein.
PCT/KR2012/005232 2012-07-02 2012-07-02 Construction machine on which counterweight provided with muffler is mounted WO2014007408A1 (en)

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US14/408,005 US20150176246A1 (en) 2012-07-02 2012-07-02 Construction machine on which counterweight provided with muffler is mounted
CN201280074242.4A CN104379844A (en) 2012-07-02 2012-07-02 Construction machine on which counterweight provided with muffler is mounted
PCT/KR2012/005232 WO2014007408A1 (en) 2012-07-02 2012-07-02 Construction machine on which counterweight provided with muffler is mounted
GB1421996.8A GB2520638A (en) 2012-07-02 2012-07-02 Construction machine on which counterweight provided with muffler is mounted
KR1020147036767A KR20150032540A (en) 2012-07-02 2012-07-02 Construction machine on which counterweight provided with muffler is mounted
DE201211006639 DE112012006639T5 (en) 2012-07-02 2012-07-02 Construction machine to which a provided with a muffler counterweight is attached

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GB2520638A (en) 2015-05-27
DE112012006639T5 (en) 2015-03-19
US20150176246A1 (en) 2015-06-25
KR20150032540A (en) 2015-03-26

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