JP4344669B2 - Centrifugal air cleaner - Google Patents

Centrifugal air cleaner Download PDF

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Publication number
JP4344669B2
JP4344669B2 JP2004275440A JP2004275440A JP4344669B2 JP 4344669 B2 JP4344669 B2 JP 4344669B2 JP 2004275440 A JP2004275440 A JP 2004275440A JP 2004275440 A JP2004275440 A JP 2004275440A JP 4344669 B2 JP4344669 B2 JP 4344669B2
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Prior art keywords
outlet pipe
seal member
bottom plate
inner element
seal
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JP2006090183A (en
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英毅 原本
和則 中村
康 荒井
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Hitachi Construction Machinery Co Ltd
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Hitachi Construction Machinery Co Ltd
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Priority to JP2004275440A priority Critical patent/JP4344669B2/en
Priority to TW094131958A priority patent/TW200610887A/en
Priority to CN2005101031987A priority patent/CN1763362B/en
Priority to KR1020050087564A priority patent/KR101090950B1/en
Publication of JP2006090183A publication Critical patent/JP2006090183A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/022—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls
    • F02M35/0223—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls by centrifugal forces, e.g. cyclones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
    • F02M35/164—Heavy duty vehicles, e.g. trucks, trains, agricultural or construction machines

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Exhaust Silencers (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Description

本発明は、油圧ショベル等に備えられ、ボディ内部にろ過エレメントを有する遠心式エアクリーナに関する。   The present invention relates to a centrifugal air cleaner provided in a hydraulic excavator or the like and having a filtering element inside a body.

この種の従来技術として、特許文献１に示されるものがある。この従来技術は、ボディの外周部に空気が導入される入口管を有し、ボディの底部に浄化した空気を流出させる出口管を有し、ボディの内部に空気を浄化するろ過エレメントを収納した構成にしてある。ろ過エレメントの出口管側の端部には、円環状のシール部材が貼着され、このシール部材は、ボディの底部を形成する底板に当接させてある。すなわち、シール部材によって、ろ過エレメントの端部と底板との間に隙間が生じないように封止させてある。   There exists a thing shown by patent document 1 as this type of prior art. This prior art has an inlet pipe through which air is introduced into the outer periphery of the body, an outlet pipe through which purified air flows out at the bottom of the body, and a filtering element for purifying air inside the body. It is configured. An annular seal member is attached to the end of the filtration element on the outlet pipe side, and this seal member is in contact with a bottom plate that forms the bottom of the body. That is, the sealing member is sealed so that no gap is generated between the end of the filtration element and the bottom plate.

上述した従来技術は、ボディ内に１つのろ過エレメントを収納させたものであるが、例えば油圧ショベルに備えられ、エンジンに供給される空気を浄化する遠心式エアクリーナとしては、ボディ内にろ過エレメントを形成するアウタエレメントと、このアウタエレメントの内側に配置される別のろ過エレメントを形成するインナエレメントとの２つのエレメントを配置したものが従来から知られている。   The above-described prior art has a single filtering element housed in the body. For example, a centrifugal air cleaner that is provided in a hydraulic excavator and purifies air supplied to the engine has a filtering element in the body. 2. Description of the Related Art Conventionally, an arrangement in which two elements, an outer element to be formed, and an inner element to form another filtration element disposed inside the outer element is arranged.

インナエレメントは、一端側が支持部材で支持され、他端側にシール部材が貼着されており、この貼着されたシール部材が底部を形成する底板に当接するように、このインナエレメントが押圧されるようになっている。   One end of the inner element is supported by a support member, and a seal member is attached to the other end. The inner element is pressed so that the attached seal member comes into contact with the bottom plate forming the bottom. It has become so.

このように、ボディ内にアウタエレメントとインナエレメントとを備えた従来技術では、主にアウタエレメントによってボディ内に導入された空気のろ過が行なわれる。また、このアウタエレメントの清掃等のためにアウタエレメントが取り外された際には、インナエレメントによって、空気中に含まれボディ内に溜まったダストの出口管からの流出、すなわちエンジン側への侵入が防止される。
特開平７−２６９４２７号公報 As described above, in the conventional technology including the outer element and the inner element in the body, the air introduced into the body is mainly filtered by the outer element. Further, when the outer element is removed for cleaning the outer element, the inner element causes the dust contained in the air to flow out from the outlet pipe, that is, enter the engine side. Is prevented.
JP-A-7-269427

上述のように、ボディ内にアウタエレメントとインナエレメントとを配置したものでは、油圧ショベルの走行、旋回、作業機の駆動に伴って、頻繁にボディに大きな振動が与えられることから、特にアウタエレメントの内側に配置され、一端部が支持部材で支持されているインナエレメントが揺動しやすい。この揺動に伴って、シール部材が貼着されているインナエレメントの端部が大きく移動することがある。このように大きく移動したときには、シール部材とボディの底部を形成する底板との間に隙間が生じてしまい、この隙間からボディ底部に溜まっていたダストが出口管方向へ流出する虞がある。すなわち、ボディ内にアウタエレメントとインナエレメントとを配置した従来技術では、出口管から流出させる空気の浄化性能が劣化する懸念がある。   As described above, in the case where the outer element and the inner element are arranged in the body, since the body is frequently subjected to large vibrations as the hydraulic excavator travels, turns, and the work machine is driven, the outer element is particularly important. The inner element, which is disposed inside and is supported at one end by the support member, easily swings. Along with this swinging, the end of the inner element to which the seal member is adhered may move greatly. When moving in this way, a gap is generated between the seal member and the bottom plate forming the bottom of the body, and dust accumulated on the bottom of the body may flow out from the gap toward the outlet pipe. That is, in the prior art in which the outer element and the inner element are arranged in the body, there is a concern that the purification performance of the air flowing out from the outlet pipe may deteriorate.

本発明は、上述した従来技術における実状からなされたもので、その目的は、ボディに与えられる振動に伴うボディ内のダストの出口管からの流出を抑制できる遠心式エアクリーナを提供することにある。   The present invention has been made in accordance with the above-described prior art, and an object of the present invention is to provide a centrifugal air cleaner that can suppress the outflow of dust in the body from the outlet pipe due to vibration applied to the body.

上記目的を達成するために、本発明は、ボディ内に、ろ過エレメントを形成するアウタエレメントとインナエレメントとを配置すると共に、出口管側に位置する上記アウタエレメントの端部を封止する第１シール部材と、上記出口管側に位置する上記インナエレメントの端部を封止する第２シール部材とを有する遠心式エアクリーナにおいて、上記インナエレメントの移動を規制する規制手段を備え、上記ボディの底部を、底板と、この底板に溶接される上記出口管とによって形成し、上記第１シール部材を上記アウタエレメントの上記端部に貼着し、上記第２シール部材を上記インナエレメントの上記端部に貼着し、上記底板に上記第１シール部材が当接する第１シール面を形成し、上記出口管が段部を有し、この段部に上記第２シール部材が当接する第２シール面を形成し、上記規制手段が、上記ボディの内部側に設けられ、上記出口管の上記段部に連設される内方延出部から成り、上記底板と上記出口管との溶接部の位置を、上記第１シール面と上記第２シール面との間の位置に設定したことを特徴としている。 In order to achieve the above object, according to the present invention, there is provided a first body in which an outer element and an inner element that form a filtration element are disposed in a body, and an end portion of the outer element located on the outlet pipe side is sealed. A centrifugal air cleaner having a seal member and a second seal member that seals an end of the inner element located on the outlet pipe side, and includes a restricting means for restricting movement of the inner element, the bottom of the body Is formed by a bottom plate and the outlet pipe welded to the bottom plate, the first seal member is attached to the end portion of the outer element, and the second seal member is attached to the end portion of the inner element. A first seal surface is formed on the bottom plate to contact the first seal member, the outlet pipe has a step portion, and the step portion includes the second seal portion. Forming a second seal surface with which the abutment comes into contact, and the restricting means comprises an inwardly extending portion provided on the inner side of the body and connected to the stepped portion of the outlet pipe, and the bottom plate and the outlet The position of the welded portion with the pipe is set to a position between the first seal surface and the second seal surface .

このように構成した本発明は、ボディに与えられた振動に伴ってインナエレメントが揺動した際に、出口管の段部に連設される内方延出部によってインナエレメントの移動量が小さくなるように抑えられる。これにより、インナエレメントの端部側を封止する第２シール部材部分を隙間を生じないように保持でき、この第２シール部材による安定したシール性能を確保でき、このようなボディに与えられる振動に伴ってボディ内のダストが、第２シール部材部分から出口管方向へ流出することが抑制される。また、底板と出口管との溶接部の位置を、第１シール面と第２シール面との間の位置に設定したことから、底板に形成される第１シール面と、出口管の段部に形成される第２のシール面との双方のシール性能に悪影響を及ぼすことなく、底板と出口管とを溶接により一体化させることができる。さらに、出口管の作製時に同時に内方延出部を形成でき、規制手段の作製が容易である。 In the present invention configured as described above, when the inner element swings in accordance with the vibration applied to the body, the amount of movement of the inner element is small due to the inwardly extending portion connected to the step portion of the outlet pipe. To be suppressed. As a result, the second seal member portion that seals the end side of the inner element can be held without generating a gap, and stable sealing performance can be ensured by the second seal member. Accordingly, the dust in the body is suppressed from flowing out from the second seal member portion toward the outlet pipe. Further, since the position of the welded portion between the bottom plate and the outlet pipe is set to a position between the first seal surface and the second seal surface, the first seal surface formed on the bottom plate and the step portion of the outlet pipe The bottom plate and the outlet pipe can be integrated by welding without adversely affecting the sealing performance of both the second sealing surface and the second sealing surface. Furthermore, the inwardly extending portion can be formed simultaneously with the production of the outlet pipe, and the production of the regulating means is easy.

また本発明は、上記発明において、油圧ショベルの旋回体上に配置され、上記旋回体に形成されるエンジン室内に収容されるエンジンにダクトを介して接続されるものから成ることを特徴としている。このように構成した本発明は、ダクトを介して旋回体のエンジン室内に収容されるエンジンに清浄な空気を供給できる。   Further, the present invention is characterized in that, in the above invention, it is arranged on a swing body of a hydraulic excavator and connected to an engine housed in an engine room formed in the swing body via a duct. The present invention configured as described above can supply clean air to the engine housed in the engine compartment of the revolving structure via the duct.

本発明は、インナエレメントの移動が出口管に連設される内方延出部によって規制されることにより、第２シール部材部分の安定したシール性能を確保でき、ボディに与えられる振動に伴ってボディ内のダストが、第２シール部材部分から出口管方向へ流出することを抑制できる。これにより常時、清浄な空気を出口管から流出させることができ、従来に比べて空気浄化性能を向上させることができる。また、底板と出口管との溶接部の位置を、第１シール面と第２シール面との間の位置に設定したことから、底板に形成される第１シール面と、出口管の段部に形成される第２のシール面との双方のシール性能に悪影響を及ぼすことがない。さらに、出口管の作製時に同時に内方延出部を形成でき、規制手段の作製が容易である。 According to the present invention, the movement of the inner element is restricted by the inward extending portion connected to the outlet pipe, so that a stable sealing performance of the second seal member portion can be secured, and in accordance with the vibration applied to the body. The dust in the body can be prevented from flowing out from the second seal member portion toward the outlet pipe. Thereby, clean air can always be made to flow out from the exit pipe, and the air purification performance can be improved as compared with the conventional case. Further, since the position of the welded portion between the bottom plate and the outlet pipe is set to a position between the first seal surface and the second seal surface, the first seal surface formed on the bottom plate and the step portion of the outlet pipe The sealing performance of both the second sealing surface and the second sealing surface is not adversely affected. Furthermore, the inwardly extending portion can be formed simultaneously with the production of the outlet pipe, and the production of the regulating means is easy.

以下，本発明に係る遠心式エアクリーナを実施するための最良の形態を図に基づいて説明する。   Hereinafter, the best mode for carrying out a centrifugal air cleaner according to the present invention will be described with reference to the drawings.

図１は本発明に係る遠心式エアクリーナの一実施形態が備えられる油圧ショベルを示す図で、（ａ）図は平面図、（ｂ）図は側面図である。   FIG. 1 is a view showing a hydraulic excavator provided with an embodiment of a centrifugal air cleaner according to the present invention. FIG. 1 (a) is a plan view and FIG. 1 (b) is a side view.

この図１に示すように、本実施形態が備えられる油圧ショベルは、走行体１と、この走行体１上に配置される旋回体２と、この旋回体２に上下方向の回動可能に連結されるブーム３と、このブーム３に上下方向の回動可能に連結されるアーム４と、このアーム４に上下方向の回動可能に連結されるバケット５とを備えている。ブーム３、アーム４、バケット５によって、掘削作業等を行なう作業機が構成されている。   As shown in FIG. 1, a hydraulic excavator provided with this embodiment is connected to a traveling body 1, a revolving body 2 disposed on the traveling body 1, and the revolving body 2 so as to be rotatable in the vertical direction. A boom 3, an arm 4 connected to the boom 3 so as to be rotatable in the vertical direction, and a bucket 5 connected to the arm 4 so as to be rotatable in the vertical direction. The boom 3, the arm 4, and the bucket 5 constitute a work machine that performs excavation work and the like.

旋回体２にはエンジン室６が備えられ、このエンジン室６内にエンジン７が配置されている。本実施形態の遠心式エアクリーナ８は、例えばエンジン７に清浄な空気を供給するものであり、旋回体２上に配置され、ダクト９を介してエンジン７に接続されている。   The revolving body 2 is provided with an engine room 6, and an engine 7 is arranged in the engine room 6. The centrifugal air cleaner 8 according to this embodiment supplies clean air to the engine 7, for example, is disposed on the revolving structure 2, and is connected to the engine 7 via a duct 9.

図２は図１に示す油圧ショベルに備えられる本発明の一実施形態を示す図で、（ａ）図は正面図、（ｂ）図は（ａ）図のＡ−Ａ断面図、図３は図２の（ｂ）図の要部拡大図である。   2 is a view showing an embodiment of the present invention provided in the hydraulic excavator shown in FIG. 1. FIG. 2 (a) is a front view, FIG. 2 (b) is a sectional view taken along line AA in FIG. It is a principal part enlarged view of the (b) figure of FIG.

図２の（ａ）（ｂ）図に示すように、本実施形態は、外殻を形成する円筒状のボディ１０を備え、このボディ１０の外周部に、空気が導入される入口管１１と、ダスト排出装置１２とを配置してある。ボディ１０の底部を、互いに別体に設けられる底板１４と、円筒状の出口管１３とによって形成してあり、これらの底板１４と出口管１３とを溶接部１５によって一体化させてある。   As shown in FIGS. 2A and 2B, the present embodiment includes a cylindrical body 10 that forms an outer shell, and an inlet pipe 11 into which air is introduced into the outer periphery of the body 10. The dust discharge device 12 is disposed. The bottom of the body 10 is formed by a bottom plate 14 and a cylindrical outlet pipe 13 provided separately from each other, and the bottom plate 14 and the outlet pipe 13 are integrated by a welded portion 15.

ボディ１０の内部には、ボディ１０の内周面との間に空気誘導路を形成する仕切り板１６を配置してあり、この仕切り板１６の内側にろ過エレメントであるアウタエレメント１７を配置してある。さらに、このアウタエレメント１７の内側に、別のろ過エレメントであるインナエレメント１８を配置してある。このインナエレメント１８は、支持部材１９を介して出口管１３に保持させてある。   Inside the body 10, a partition plate 16 that forms an air guide path between the inner peripheral surface of the body 10 is disposed, and an outer element 17 that is a filtration element is disposed inside the partition plate 16. is there. Further, an inner element 18 which is another filtration element is arranged inside the outer element 17. The inner element 18 is held by the outlet pipe 13 via a support member 19.

図３に示すように、アウタエレメント１７の出口管１３側の端部には、円環状の第１シール部材２０を貼着させてあり、この第１シール部材２０を底板１４に形成した第１シール面２１に当接させてある。同様に、インナエレメント１８の出口管１３側の端部にも円環状の第２シール部材２２を貼着させてあり、この第２シール部材２２を、出口管１３に設けた段部に形成した第２シール面２３に当接させてある。   As shown in FIG. 3, an annular first seal member 20 is attached to the end of the outer element 17 on the outlet pipe 13 side, and the first seal member 20 is formed on the bottom plate 14. The seal surface 21 is brought into contact. Similarly, an annular second seal member 22 is attached to the end of the inner element 18 on the outlet pipe 13 side, and the second seal member 22 is formed on a step provided on the outlet pipe 13. It abuts on the second seal surface 23.

なお、上述した底板１４と出口管１３との溶接部１５の位置は、底板１４に形成した第１シール面２１と、出口管１３の段部に形成した第２シール面２３との間の位置に設定してある。   The position of the welded portion 15 between the bottom plate 14 and the outlet pipe 13 described above is a position between the first seal surface 21 formed on the bottom plate 14 and the second seal surface 23 formed on the step portion of the outlet pipe 13. It is set to.

本実施形態は特に、インナエレメント１８の移動を規制する規制手段を備えており、この規制手段は例えば、ボディ１０の内部側に設けられ、出口管１３の段部に連設される内方延出部２４によって構成されている。   In particular, the present embodiment includes a restricting means for restricting the movement of the inner element 18, and this restricting means is provided, for example, on the inner side of the body 10, and is inwardly extended continuously to the step portion of the outlet pipe 13. It is comprised by the output part 24. FIG.

このように構成した本実施形態は、図２の（ｂ）図に示す入口管１１から空気が導入され、この導入された空気は、ボディ１０の内周面と仕切り板１６とによって形成される空気誘導路によって導かれてアウタエレメント１７を通過する。このようにアウタエレメント１７を通過する際に、主に導入された空気が浄化される。このように浄化された空気は、さらにインナエレメント１８を通過し、このインナエレメント１８においても浄化され、出口管１３から流出する。出口管１３から流出した清浄な空気は、図１に示すダクト９を介してエンジン室６内に配置されるエンジン７に供給される。   In the present embodiment configured as described above, air is introduced from the inlet pipe 11 shown in FIG. 2B, and the introduced air is formed by the inner peripheral surface of the body 10 and the partition plate 16. It is guided by the air guide path and passes through the outer element 17. Thus, when the air passes through the outer element 17, mainly introduced air is purified. The air purified in this way further passes through the inner element 18 and is also purified in the inner element 18 and flows out from the outlet pipe 13. The clean air that has flowed out of the outlet pipe 13 is supplied to the engine 7 disposed in the engine compartment 6 through the duct 9 shown in FIG.

本実施形態によれば、油圧ショベルの走行、旋回、あるいは作業機による作業によってボディ１０に大きな振動が与えられてインナエレメント１８が揺動し、その出口管１３側に位置する端部が移動しようとしたときには、このインタエレメント１８の端部の移動が、出口管１３の内方延出部２４によって規制される。すなわち、インナエレメント１８の移動量が小さくなるように抑えられる。これにより、インナエレメント１８に貼着した第２シール部材２２が出口管１３の段部に形成した第２シール面２３から離れることがなく、すなわち、このインナエレメント１８に貼着した第２シール部材２２と第２シール面２３との間に隙間が生じることがなく、第２シール部材２２による安定したシール性能を確保できる。したがって、このようなボディ１０に与えられる振動に伴ってボディ１０内のダストが、第２シール部材２２部分から出口管１３方向へ流出することが抑制され、常時清浄な空気を出口管１３からエンジン１に供給でき、優れた空気浄化性能を確保できる。   According to the present embodiment, a large vibration is applied to the body 10 due to traveling, turning, or work by the working machine of the hydraulic excavator, the inner element 18 swings, and the end located on the outlet pipe 13 side moves. In this case, the movement of the end portion of the interelement 18 is restricted by the inwardly extending portion 24 of the outlet pipe 13. That is, the movement amount of the inner element 18 is suppressed to be small. Thereby, the 2nd seal member 22 stuck to the inner element 18 does not leave | separate from the 2nd seal surface 23 formed in the step part of the outlet pipe 13, That is, the 2nd seal member stuck to this inner element 18 There is no gap between 22 and the second seal surface 23, and stable sealing performance by the second seal member 22 can be ensured. Therefore, the dust in the body 10 is prevented from flowing out from the second seal member 22 toward the outlet pipe 13 along with the vibration applied to the body 10, and clean air is always supplied from the outlet pipe 13 to the engine. 1 and can ensure excellent air purification performance.

また、底板１４と出口管１３との溶接部１５の位置を底板１４に形成した第１シール面２１と、出口管１３の段部に形成した第２シール面２３との間の位置に設定してあることから、第１シール面２１と第２シール面２３の双方のシール性能に悪影響を及ぼすことなく、これらの底板１４と出口管１３とを溶接によって一体化させることができ、安定したシール性能の確保に貢献する。   Further, the position of the welded portion 15 between the bottom plate 14 and the outlet pipe 13 is set to a position between the first seal surface 21 formed on the bottom plate 14 and the second seal surface 23 formed on the step portion of the outlet pipe 13. Therefore, the bottom plate 14 and the outlet pipe 13 can be integrated by welding without adversely affecting the sealing performance of both the first seal surface 21 and the second seal surface 23, and a stable seal can be obtained. Contributes to securing performance.

また、インナエレメント１８の移動を規制する規制手段を構成する出口管１３の内方延出部２４は、出口管１３の作製時に同時に形成できる。すなわち本実施形態は、規制手段の作製が容易である。   Further, the inwardly extending portion 24 of the outlet pipe 13 that constitutes a regulating means for regulating the movement of the inner element 18 can be formed at the same time as the outlet pipe 13 is manufactured. That is, in this embodiment, it is easy to produce the regulating means.

また、上記では出口管１３が円筒状から成るので、この出口管１３に形成した内方延出部２４も円筒状に形成されているが、本発明は、このように規制手段を円筒状に形成することには限られない。要するに、インナエレメント１８の移動を規制し得る形状になっていればよい。   Further, in the above, since the outlet pipe 13 is formed in a cylindrical shape, the inward extending portion 24 formed in the outlet pipe 13 is also formed in a cylindrical shape. It is not limited to forming. In short, it is sufficient that the inner element 18 has a shape that can regulate the movement of the inner element 18.

本発明に係る遠心式エアクリーナの一実施形態が備えられる油圧ショベルを示す図で、（ａ）図は平面図、（ｂ）図は側面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the hydraulic shovel with which one Embodiment of the centrifugal air cleaner which concerns on this invention is provided, (a) A figure is a top view, (b) A figure is a side view. 図１に示す油圧ショベルに備えられる本発明の一実施形態を示す図で、（ａ）図は正面図、（ｂ）図は（ａ）図のＡ−Ａ断面図である。It is a figure which shows one Embodiment of this invention with which the hydraulic shovel shown in FIG. 1 is equipped, (a) A figure is a front view, (b) A figure is AA sectional drawing of (a) figure. 図２の（ｂ）図の要部拡大図である。It is a principal part enlarged view of the (b) figure of FIG.

符号の説明Explanation of symbols

２ 旋回体
６ エンジン室
７ エンジン
８ 遠心式エアクリーナ
９ ダクト
１０ ボディ
１１ 入口管
１３ 出口管
１４ 底板
１５ 溶接部
１６ 仕切り板
１７ アウタエレメント
１８ インナエレメント
１９ 支持部材
２０ 第１シール部材
２１ 第１シール面
２２ 第２シール部材
２３ 第２シール面
２４ 内方延出部（規制手段） DESCRIPTION OF SYMBOLS 2 Revolving body 6 Engine chamber 7 Engine 8 Centrifugal air cleaner 9 Duct 10 Body 11 Inlet pipe 13 Outlet pipe 14 Bottom plate 15 Welding part 16 Partition plate 17 Outer element 18 Inner element 19 Support member 20 First seal member 21 First seal surface 22 2nd seal member 23 2nd seal surface 24 Inward extension part (regulation means)

Claims (2)

ボディ内に、ろ過エレメントを形成するアウタエレメントとインナエレメントとを配置すると共に、出口管側に位置する上記アウタエレメントの端部を封止する第１シール部材と、上記出口管側に位置する上記インナエレメントの端部を封止する第２シール部材とを有する遠心式エアクリーナにおいて、
上記インナエレメントの移動を規制する規制手段を備え、
上記ボディの底部を、底板と、この底板に溶接される上記出口管とによって形成し、
上記第１シール部材を上記アウタエレメントの上記端部に貼着し、上記第２シール部材を上記インナエレメントの上記端部に貼着し、
上記底板に上記第１シール部材が当接する第１シール面を形成し、上記出口管が段部を有し、この段部に上記第２シール部材が当接する第２シール面を形成し、
上記規制手段が、上記ボディの内部側に設けられ、上記出口管の上記段部に連設される内方延出部から成り、
上記底板と上記出口管との溶接部の位置を、上記第１シール面と上記第２シール面との間の位置に設定したことを特徴とする遠心式エアクリーナ。 In the body, an outer element and an inner element that form a filtration element are arranged, a first seal member that seals an end of the outer element located on the outlet pipe side, and the above-mentioned located on the outlet pipe side In the centrifugal air cleaner having a second seal member that seals the end of the inner element,
A regulation means for regulating movement of the inner element ;
The bottom of the body is formed by a bottom plate and the outlet pipe welded to the bottom plate,
The first seal member is attached to the end of the outer element, the second seal member is attached to the end of the inner element,
Forming a first seal surface against which the first seal member abuts the bottom plate, the outlet pipe having a step, and forming a second seal surface against which the second seal member abuts at the step;
The restricting means is provided on the inner side of the body, and includes an inwardly extending portion that is connected to the stepped portion of the outlet pipe.
A centrifugal air cleaner , wherein a position of a welded portion between the bottom plate and the outlet pipe is set to a position between the first seal surface and the second seal surface . 上記請求項１記載の発明において、
油圧ショベルの旋回体上に配置され、上記旋回体に形成されるエンジン室内に収容され
るエンジンにダクトを介して接続されるものから成ることを特徴とする遠心式エアクリー
ナ。 In the invention of claim 1,
It is arranged on the swivel body of a hydraulic excavator and is housed in the engine room formed in the swivel body.
A centrifugal air cleaner characterized in that it is connected to an engine through a duct .
JP2004275440A 2004-09-22 2004-09-22 Centrifugal air cleaner Expired - Fee Related JP4344669B2 (en)

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JP2004275440A JP4344669B2 (en) 2004-09-22 2004-09-22 Centrifugal air cleaner
TW094131958A TW200610887A (en) 2004-09-22 2005-09-16 Centrifugal air cleaner
CN2005101031987A CN1763362B (en) 2004-09-22 2005-09-20 Centrifugal type air filter
KR1020050087564A KR101090950B1 (en) 2004-09-22 2005-09-21 Centrifugal air cleaner

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JP2018020682A (en) * 2016-08-04 2018-02-08 トヨタ自動車株式会社 Vehicle control device
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CN1763362A (en) 2006-04-26
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TW200610887A (en) 2006-04-01
KR101090950B1 (en) 2011-12-08

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