JP5981907B2 - Engine support for construction machinery - Google Patents

Engine support for construction machinery Download PDF

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JP5981907B2
JP5981907B2 JP2013266234A JP2013266234A JP5981907B2 JP 5981907 B2 JP5981907 B2 JP 5981907B2 JP 2013266234 A JP2013266234 A JP 2013266234A JP 2013266234 A JP2013266234 A JP 2013266234A JP 5981907 B2 JP5981907 B2 JP 5981907B2
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engine
plate
vertical
support
top plate
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JP2015121056A (en
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剛 恒吉
剛 恒吉
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Caterpillar SARL
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Description

本発明は、建設機械の機体フレームに備えるエンジンサポートに関する。   The present invention relates to an engine support provided in a body frame of a construction machine.

建設機械の代表例である油圧ショベルの機体フレームである旋回フレーム（例えば、特許文献１参照）について図８（同文献の図５の符号を説明用に変えたもの）を参照して説明する。旋回フレーム５０は、間隔を置いて前後方向に並んで延びる一対の主フレームである、右主フレーム５２および左主フレーム５４を備え、搭載するエンジンの脚部を支持するための矩形に配置した４個のエンジンサポート５８を備えている。   A swivel frame (see, for example, Patent Document 1), which is a body frame of a hydraulic excavator that is a typical example of a construction machine, will be described with reference to FIG. 8 (the reference numeral in FIG. 5 is changed for explanation). The revolving frame 50 includes a right main frame 52 and a left main frame 54 that are a pair of main frames extending in the front-rear direction at intervals, and is arranged in a rectangle for supporting the legs of the engine to be mounted. The engine support 58 is provided.

４個のエンジンサポート５８は、エンジンの大きさ、配置等に合わせて位置決めされ、主フレーム５２、５４それぞれの側面もしくは主フレーム５２、５４を結ぶ前後の横フレーム５６、５７それぞれの側面に実質的に同一のものが、この例においては右主フレーム５２の外側面、左主フレーム５４の内側面にそれぞれ２個ずつ配置されている。   The four engine supports 58 are positioned in accordance with the size and arrangement of the engine, and are substantially arranged on the side surfaces of the main frames 52 and 54 or the side surfaces of the horizontal frames 56 and 57 before and after connecting the main frames 52 and 54. In this example, two identical ones are arranged on the outer surface of the right main frame 52 and on the inner surface of the left main frame 54, respectively.

これらのエンジンサポート５８は、エンジンの重量、振動等を強固に支持するために、上下に延びる四角筒の一側面を開放したボックス構造に形成され、上端部にエンジンの脚部を、弾性マウントを介してボルトにより取付ける、ボルト穴を有した支持板を備え、側面の開口部の二辺が主フレーム５２、５４の側面もしくは横フレーム５６、５７の側面に接合されている。   These engine supports 58 are formed in a box structure in which one side of a vertically extending rectangular tube is opened to firmly support the weight, vibration, etc. of the engine, and the engine legs are attached to the upper ends and elastic mounts are provided. A support plate having a bolt hole is attached, and two sides of the opening on the side surface are joined to the side surfaces of the main frames 52 and 54 or the side surfaces of the horizontal frames 56 and 57.

特開２０００−１４２４９９号公報（図５）Japanese Unexamined Patent Publication No. 2000-142499 (FIG. 5)

上述の従来のエンジンサポートには、次のとおりの解決すべき課題がある。   The above-described conventional engine support has the following problems to be solved.

エンジンはその４個の脚部が４個のエンジンサポート５８それぞれの上に、弾性マウントを介して位置付けられ、弾性マウントの上方から通したボルトが、サポート５８の支持板のボルト穴を通され、サポート内に位置付けたナットに締め付けられ載置される。   The four legs of the engine are positioned on each of the four engine supports 58 via elastic mounts, and bolts passed from above the elastic mounts are passed through the bolt holes on the support plate of the support 58, It is clamped and placed on a nut positioned in the support.

このサポート５８の中にナットをボルトに合わせて位置付け、ボルトを締付ける際、例えば右主フレーム５２の外側面に設置するエンジンサポート５８（Ｘで示す）においては、上下に延びるボックス構造の四角筒の外方が補強板で閉じられ、内方の開放した側はエンジン本体の下になるため、作業者にとってエンジンサポート５８内へのアクセスが困難で面倒な問題がある。外側を開放するために、補強板を内側の右主フレーム５２側にはもっていくことは構造上できない。   When the nut is positioned in the support 58 in accordance with the bolt, and the bolt is tightened, for example, in the engine support 58 (indicated by X) installed on the outer surface of the right main frame 52, a box-structured square cylinder extending vertically is used. Since the outer side is closed with a reinforcing plate and the inner open side is under the engine body, there is a problem that it is difficult and difficult for the operator to access the engine support 58. In order to open the outside, it is structurally impossible to bring the reinforcing plate to the inner right main frame 52 side.

弾性マウント、ボルト、ナット等については本発明の実施形態において詳述する。   The elastic mount, bolt, nut and the like will be described in detail in the embodiment of the present invention.

本発明は上記事実に鑑みてなされたもので、その技術的課題は、建設機械の機体フレームの側面に立設される複数個のエンジンサポートにおける、エンジンを載置するためにサポート内に通すボルトにナットを位置付け、ボルトの締付け作業を行なう際に、作業者が手指により容易にサポート内にアクセスできるようにするととともに、サポートの剛性バランスや強度を向上させた、建設機械のエンジンサポートを提供することである。   The present invention has been made in view of the above-mentioned facts, and its technical problem is that a plurality of engine supports standing upright on the side of a machine body frame of a construction machine are bolts that pass through the support for mounting the engine. To provide engine support for construction machinery with improved support rigidity balance and strength while allowing the operator to access the support easily with fingers when performing nut tightening work. That is.

本発明によれば上記技術的課題を解決する建設機械のエンジンサポートとして、機体フレームに設置された、エンジンを支持する複数個のエンジンサポートの一個または複数個が、機体フレームの側面に前後方向に間隔を置いて、下端部を接合し立設された一対の縦板と、この一対の縦板の間に断面Ｌ形を成して前後方向に延び、前後方向両端部が該一対の縦板のそれぞれに接合された補強Ｌ形板を有し、一方の縦板が、その上端部に、他方の縦板側に向けて水平に延び他方の縦板の上端に接合された、エンジンを載置支持するボルト穴を有した天板部を備え、他方の縦板が、その上端部に、一方の縦板の天板部に沿って延び天板部に当接接合された連結部を備え、上記補強Ｌ形板は、Ｌ形の稜線部が該機体フレームの側面から離れた側に位置付けられ、該機体フレームの側面の側に位置するＬ形の一辺および他辺が一対の縦板に対して上下方向に位置付けられ、かつ該天板部との間に、該稜線部の側から、ボルト穴を通したボルトに取付けるナットのアクセス空間を備えている、ことを特徴とする建設機械のエンジンサポートが提供される。 According to the present invention, as an engine support for a construction machine that solves the above technical problem, one or more of a plurality of engine supports that are installed on the body frame and support the engine are arranged on the side surface of the body frame in the front-rear direction. A pair of vertical plates that are erected by joining the lower end portions at an interval, and an L-shaped cross section extending between the pair of vertical plates and extending in the front-rear direction, and both ends in the front-rear direction are each of the pair of vertical plates The engine has a reinforcing L-shaped plate joined to the upper plate, and one vertical plate extends horizontally toward the other vertical plate at the upper end thereof and is joined to the upper end of the other vertical plate. A top plate portion having a bolt hole to be provided, the other vertical plate is provided with a connecting portion that extends along the top plate portion of one vertical plate and is abutted and joined to the top plate portion at the upper end portion thereof, reinforcing L Katachiban is position on the side ridge portion of the L-shaped away from the side of the machine frame Lighted, L-shaped side and the other side located on the side of the side surface of the該機body frame is positioned in the vertical direction with respect to the pair of vertical plates, and between the top plate portion, from the side of該稜wire portion An engine support for a construction machine is provided, comprising an access space for a nut attached to a bolt through a bolt hole.

本発明に従って構成された建設機械のエンジンサポートは、機体フレームの側面に立設された一対の縦板と、この縦板の間に接合された断面Ｌ形の補強Ｌ形板を有し、一方の縦板が、他方の縦板の上端に接合された、エンジンを載置支持する天板部を備え、他方の縦板が、一方の縦板の天板部に当接接合された連結部を備え、補強Ｌ形板は、Ｌ形の稜線部が該機体フレームの側面から離れた側に位置付けられ、Ｌ形の一辺および他辺が上下方向に位置付けられ、天板部との間に、該稜線部の側から、ボルト穴を通したボルトに取付けるナットのアクセス空間を備えている。 An engine support for a construction machine constructed in accordance with the present invention has a pair of vertical plates erected on the side of the body frame and a reinforcing L-shaped plate having an L-shaped cross section joined between the vertical plates. The plate has a top plate portion that is joined to the upper end of the other vertical plate and supports the engine, and the other vertical plate has a connecting portion that is in contact with and joined to the top plate portion of the one vertical plate. , reinforcing L Katachiban the ridge portion of the L-shaped is positioned on the side away from the side of the body frame, L-shaped side and the other side is positioned vertically, between the top plate portion,該稜line An access space for nuts attached to bolts through bolt holes is provided from the part side.

したがって、一対の縦板の間に、補強Ｌ形板を有し、補強Ｌ形板が、Ｌ形の稜線部を機体フレームの側面から離れた側に位置付け、Ｌ形の一辺および他辺が一対の縦板に対して上下方向に位置付けられ、天板部との間にボルト穴を通したボルトに取付けるナットのアクセス空間を備えているので、作業者が手指により容易にサポート内にアクセスできるととともに、サポートの剛性バランスや強度を向上させた、建設機械のエンジンサポートを提供することができる。 Therefore, there is a reinforcing L-shaped plate between the pair of vertical plates, the reinforcing L-shaped plate positions the L-shaped ridge line portion on the side away from the side surface of the body frame, and one side and the other side of the L-shaped pair are vertical It is positioned vertically with respect to the plate and has an access space for nuts attached to the bolts through the bolt holes between the top plate and the operator so that the operator can easily access the support by fingers, It is possible to provide engine support for construction machinery with improved rigidity balance and strength.

本発明に従って構成されたエンジンサポートを備える建設機械の機体フレームである旋回フレームの斜視図。The perspective view of the turning frame which is a body frame of a construction machine provided with the engine support comprised according to this invention. エンジンサポートを図１の矢印Ｙ１で示す斜め上方から見た斜視図。The perspective view which looked at the engine support from diagonally upward which is shown by arrow Y1 in FIG. 図２に示すエンジンサポートを、天板部を含む一方の縦板を除いた状態で示した斜視図。The perspective view which showed the engine support shown in FIG. 2 in the state except one vertical board containing a top-plate part. 図２に示すエンジンサポートを、裏側から見た斜視図。The perspective view which looked at the engine support shown in FIG. 2 from the back side. エンジンサポートに弾性マウントを介してエンジン脚部を取付けた状態の断面図。Sectional drawing of the state which attached the engine leg part to the engine support via the elastic mount. 図５に示すナットの詳細図。FIG. 6 is a detailed view of the nut shown in FIG. 5. 建設機械の代表例である油圧ショベルの側面図。The side view of the hydraulic excavator which is a typical example of a construction machine. 従来のエンジンサポートを備えた建設機械の機体フレームである旋回フレームの斜視図。The perspective view of the turning frame which is the body frame of the construction machine provided with the conventional engine support.

以下、本発明に従って構成された建設機械のエンジンサポートについて、代表的な建設機械である油圧ショベルにおける好適実施形態を図示している添付図面を参照して、さらに詳細に説明する。   Hereinafter, an engine support of a construction machine configured according to the present invention will be described in more detail with reference to the accompanying drawings illustrating a preferred embodiment of a hydraulic excavator that is a typical construction machine.

図７を参照して油圧ショベルについて説明する。油圧ショベル２は、下部走行体４と、下部走行体４上に旋回自在に取付けられた上部旋回体６を備え、上部旋回体６には、機体フレームである旋回フレーム８の上に、運転室１０、その前方に作業腕装置１２、後方にエンジン室１４、後端部にカウンタウエイト１６を備えている。   The hydraulic excavator will be described with reference to FIG. The excavator 2 includes a lower traveling body 4 and an upper revolving body 6 that is pivotably mounted on the lower traveling body 4. The upper revolving body 6 includes a driver's cab on a revolving frame 8 that is a body frame. 10, a working arm device 12 in the front, an engine chamber 14 in the rear, and a counterweight 16 in the rear end.

旋回フレーム８について図１を参照して説明する。図１において、図８と実質上同一の部分は同一の符号で示されている。   The swivel frame 8 will be described with reference to FIG. In FIG. 1, parts that are substantially the same as those in FIG. 8 are denoted by the same reference numerals.

旋回フレーム８は、間隔を置いて前後方向に並んで延びる一対の主フレームである、右主フレーム５２および左主フレーム５４を備え、それぞれに接合連結され横方向に延びた後端部の横フレーム５７および前側の横フレーム５６を備えている。搭載するエンジンの脚部を支持するための平面視で矩形に配置した４個のエンジンサポートとして、右主フレーム５２に本発明に係るエンジンサポート１８、１８を、左主フレーム５４に従来と実質同一のエンジンサポート５８、５８を備えている。   The revolving frame 8 includes a right main frame 52 and a left main frame 54, which are a pair of main frames extending side by side in the front-rear direction at an interval, and are joined and connected to each of them to extend in the horizontal direction. 57 and a front side frame 56 are provided. As the four engine supports arranged in a rectangular shape in plan view for supporting the legs of the engine to be mounted, the engine supports 18 and 18 according to the present invention are provided on the right main frame 52 and the left main frame 54 is substantially the same as the conventional one. Engine supports 58 and 58 are provided.

４個のエンジンサポートは、エンジンの大きさ、配置等に合わせて位置決めされ、エンジンサポート１８，１８は右主フレーム５２の外側面に、エンジンサポート５８，５８は左主フレーム５４の内側面ならびに横フレーム５６あるいは横フレーム５７の側面に位置している。   The four engine supports are positioned according to the size and arrangement of the engine, the engine supports 18 and 18 are on the outer side of the right main frame 52, and the engine supports 58 and 58 are on the inner side and side of the left main frame 54. It is located on the side surface of the frame 56 or the horizontal frame 57.

従来の構成を備えたエンジンサポート５８は、上下に延びる四角筒の一側面を開放したボックス構造に形成され、上端部にエンジンの脚部を、弾性マウントを介してボルトにより取付けるボルト穴を有した支持板を備え、側面の開口部の二辺が左主フレーム５４の側面ならびに横フレーム５６あるいは横フレーム５７の側面に接合されている。エンジンサポート５８においては、図１から理解されるように、左主フレーム５４の側面に接合された部分の開口を通して、外方からサポート内にアクセスすることができる。   The engine support 58 having a conventional configuration is formed in a box structure in which one side surface of a vertically extending square cylinder is opened, and has a bolt hole for attaching an engine leg to the upper end with a bolt via an elastic mount. A support plate is provided, and two sides of the opening on the side surface are joined to the side surface of the left main frame 54 and the side surface of the horizontal frame 56 or the horizontal frame 57. As can be understood from FIG. 1, the engine support 58 can be accessed from the outside through the opening of the portion joined to the side surface of the left main frame 54.

図２〜図４を参照して、エンジンサポート１８について説明する。エンジンサポート１８は、右主フレーム５２の側面Ｆに前後方向に間隔を置いて、下端部を接合し立設された一対の縦板２０、２２と、縦板２０、２２の間に断面Ｌ形を成して前後方向に延び、前後方向両端部が縦板２０、２２のそれぞれに接合された補強Ｌ形板２４を有している。 The engine support 18 will be described with reference to FIGS. The engine support 18 has an L-shaped cross section between a pair of vertical plates 20 and 22 erected with a lower end portion joined to the side surface F of the right main frame 52 in the front-rear direction, and the vertical plates 20 and 22. extending in the longitudinal direction forms a has a reinforcing L-shaped plates 24 to both front-back ends is joined to each of the vertical plates 20, 22.

一方の縦板２０は、下端部が下端に向けて徐々に細くなった三角状に形成され、上端部には、他方の縦板２２側に向けて曲げて水平に延び縦板２２の上端に接合された、エンジンを載置支持するボルト穴２０ａを有した天板部２０ｂを備えている。下端部と上端部の間には右主フレーム５２の上面板５２ａをまたぐ凹部２０ｃが形成されている。   One vertical plate 20 is formed in a triangular shape whose lower end is gradually narrowed toward the lower end, and is bent horizontally toward the other vertical plate 22 at the upper end and extends horizontally at the upper end of the vertical plate 22. A top plate portion 20b having a bolt hole 20a for mounting and supporting the engine is provided. A recess 20c is formed between the lower end and the upper end so as to straddle the upper surface plate 52a of the right main frame 52.

他方の縦板２２は、一方の縦板２０と同様に、下端部が下端に向けて徐々に細くなった三角状に形成され、上端部に、曲げて一方の縦板２０の天板部２０ｂの下面に沿って縦板２０まで延び、下面および縦板２０に接合された連結部２２ａを備えている。一方の縦板２０と同様に、下端部と上端部の間には右主フレーム５２の上面板５２ａをまたぐ凹部２２ｂが形成されている。連結部２２ａは、下端が上面板５２ａの上に接合されている。   The other vertical plate 22 is formed in a triangular shape in which the lower end portion is gradually narrowed toward the lower end in the same manner as the one vertical plate 20, and is bent at the upper end portion to be the top plate portion 20 b of the one vertical plate 20. A connecting portion 22 a that extends to the vertical plate 20 along the lower surface of the lower surface and is joined to the lower surface and the vertical plate 20 is provided. Similar to the vertical plate 20, a recess 22b is formed between the lower end and the upper end so as to straddle the upper surface plate 52a of the right main frame 52. The connecting portion 22a has a lower end joined to the upper surface plate 52a.

補強Ｌ形板２４は、板を曲げて形成され、Ｌ形曲げの稜線部Ｒが側面Ｆから離れた外側に位置付けられ、側面Ｆの側に位置する曲げの一辺２４ａおよび他辺２４ｂは縦板２０、２２に対して上下方向に対称に位置付けられ、かつ天板部２０ｂとの間に、稜線部Ｒの側から、ボルト穴２０ａを通したボルトに取付けるナットのアクセス空間Ｓを備えている（ボルト、ナットについては後に述べる）。Ｌ形は製造性も考慮して角度９０°で曲げ形成されている。   The reinforcing L-shaped plate 24 is formed by bending the plate, the ridge line portion R of the L-shaped bending is positioned outside the side surface F, and one side 24a and the other side 24b of the bending positioned on the side surface F side are vertical plates. 20 and 22 are positioned symmetrically in the vertical direction, and are provided with a nut access space S to be attached to the bolt through the bolt hole 20a from the ridge line portion R side between the top plate portion 20b ( Bolts and nuts will be described later). The L shape is bent at an angle of 90 ° in consideration of manufacturability.

補強Ｌ形板２４の一方の縦板２２側の一辺２４ａは、他辺２４ｂよりもアクセス空間Ｓを十分に大きく用意するために、短く形成されている。   One side 24a of one side of the reinforcing L-shaped plate 24 on the side of the vertical plate 22 is formed to be short in order to prepare the access space S sufficiently larger than the other side 24b.

図５を参照して、エンジンの脚部をエンジンサポート１８に載置する弾性マウントの典型例について説明する。弾性マウント２６は、エンジン支持ブラケット２８の鉛直に開口した穴部に上下から挿入された一対の環状の、下方がエンジンサポート１８の天板部２０ｂ上に載置されたゴムブッシュ３０、３０と、ゴムブッシュ３０、３０それぞれの中心穴に挿通された円筒状のスリーブ３２、３２と、上方のブッシュ３０の上面に位置付けたワッシャプレート３４と、上方からワッシャプレート３４、スリーブ３２、３２、天板部２０ｂのボルト穴２０ａを通したボルト３６を備え、ワッシャプレート３４の側からエンジンサポート１８内に挿通したボルト３６の先端にワッシャ３８を介してナット４０が取付けられる。   With reference to FIG. 5, a typical example of the elastic mount for placing the engine leg on the engine support 18 will be described. The elastic mount 26 includes a pair of annular rubber bushes 30 and 30 which are inserted from above and below into a vertically opened hole portion of the engine support bracket 28, and the lower portions thereof are placed on the top plate portion 20 b of the engine support 18. Cylindrical sleeves 32 and 32 inserted through the central holes of the rubber bushes 30 and 30, a washer plate 34 positioned on the upper surface of the upper bush 30, and a washer plate 34, sleeves 32 and 32, and a top plate portion from above A bolt 36 is provided through a bolt hole 20a of 20b, and a nut 40 is attached to the tip of the bolt 36 inserted into the engine support 18 from the washer plate 34 side through a washer 38.

ナット４０について図６を参照して説明する。ナット４０は、ナット４０ａに半径方向に延びる矩形の回り止め板４０ｂを接合したものである。作業者は、回り止め板４０ｂを手指で掴みエンジンサポート１８内のアクセス空間Ｓに外方から挿入し（図２に矢印Ｚで示す）ナット４０の位置付けを行う。この回り止め板４０ｂは、ボルト３６をその頭部を回して締めるときに、あるいは緩めるときに、エンジンサポート１８の内壁に当接し、ナット４０の回り止め機能を有し回り止めのための工具を不要にしている。   The nut 40 will be described with reference to FIG. The nut 40 is formed by joining a rectangular detent plate 40b extending in the radial direction to the nut 40a. The operator holds the rotation stopper plate 40b with his / her fingers and inserts the nut 40 into the access space S in the engine support 18 from the outside (indicated by the arrow Z in FIG. 2). The anti-rotation plate 40b abuts against the inner wall of the engine support 18 when the bolt 36 is tightened or loosened by turning its head, and has a function of preventing the rotation of the nut 40 and a tool for anti-rotation. It is unnecessary.

上述したとおりの建設機械のエンジンサポート１８の作用について、主として図２を参照して説明する。   The operation of the engine support 18 of the construction machine as described above will be described mainly with reference to FIG.

建設機械のエンジンサポート１８は、機体フレーム８（５２）の側面Ｆに立設された一対の縦板２０，２２と、この縦板２０，２２の間に接合された断面Ｌ形の補強Ｌ形板２４を有し、一方の縦板２０が、他方の縦板２２の上端に接合された、エンジンを載置支持する天板部２０ｂを備え、他方の縦板２２が、一方の縦板２０の天板部２０ｂに当接接合された連結部２２ａ（図３）を備え、補強Ｌ形板２４は、曲げの稜線部Ｒが側面Ｆから離れた側に位置付けられ、曲げの一辺および他辺が上下方向に位置付けられ、天板部２０ｂとの間にボルト穴２０ａを通したボルトに取付けるナットのアクセス空間Ｓを備えている。   The engine support 18 of the construction machine includes a pair of vertical plates 20 and 22 erected on the side surface F of the body frame 8 (52), and an L-shaped reinforcing L shape joined between the vertical plates 20 and 22. It has a plate 24, one vertical plate 20 is joined to the upper end of the other vertical plate 22, and includes a top plate portion 20 b for mounting and supporting the engine, and the other vertical plate 22 is one vertical plate 20. 3b, and the reinforcing L-shaped plate 24 is positioned on the side where the ridge line portion R of the bending is away from the side surface F, and one side and the other side of the bending. Is positioned in the vertical direction, and is provided with an access space S for a nut to be attached to a bolt through which the bolt hole 20a is passed between the top plate portion 20b.

したがって、一対の縦板２０，２２の間に、補強Ｌ形板２４を有し、補強Ｌ形板２４が、曲げの稜線部Ｒを側面Ｆから離れた側に位置付け、曲げの一辺および他辺が縦板２０，２２に対して上下方向に位置付けられ、天板部２０ｂとの間にボルト穴２０ａを通したボルトに取付けるナットのアクセス空間Ｓを備えているので、作業者が手指により容易にサポート１８内にアクセスできるようにするととともに、サポート１８の剛性バランスや強度を向上させた、建設機械のエンジンサポートを提供することができる。   Therefore, the reinforcing L-shaped plate 24 is provided between the pair of vertical plates 20 and 22, and the reinforcing L-shaped plate 24 positions the bending ridge line portion R on the side away from the side surface F, and one side and the other side of the bending. Is positioned in the vertical direction with respect to the vertical plates 20 and 22, and is provided with a nut access space S to be attached to the bolt through the bolt hole 20a between the top plate portion 20b and the operator can easily use his / her fingers. It is possible to provide an engine support for a construction machine that allows access to the support 18 and improves the rigidity balance and strength of the support 18.

特に断面Ｌ形の補強Ｌ形板２４の一辺および他辺を斜めに配置することで、垂直方向にも水平方向にも断面係数変化が少なく、高応力の発生が少なく、強度的にも有利に剛性を維持することができる。   In particular, by arranging one side and the other side of the reinforcing L-shaped plate 24 having an L-shaped cross section obliquely, there is little change in the section modulus both in the vertical direction and in the horizontal direction, the occurrence of high stress is small, and the strength is advantageous. Stiffness can be maintained.

また、建設機械のエンジンが設置されるスペース（エンジン室）には、多くの機器が設置され、エンジン本体の下からエンジンを支持するサポートの部分へのアクセスが困難であるが、エンジンサポート１８によれば容易にサポート１８内にアクセスすることができる。   Also, in the space (engine room) where the engine of the construction machine is installed, many devices are installed, and it is difficult to access the support portion that supports the engine from under the engine body. Therefore, the support 18 can be easily accessed.

以上、本発明を実施例に基づいて詳細に説明したが、本発明は上記の実施例に限定されるものではなく、例えば下記のように、本発明の範囲内においてさまざまな変形あるいは修正ができるものである。   The present invention has been described in detail based on the embodiments. However, the present invention is not limited to the above-described embodiments, and various changes or modifications can be made within the scope of the present invention, for example, as described below. Is.

本発明の実施例においては、エンジンサポート１８は、４個のエンジンサポートの内のアクセスが困難な２個に適用されているが、他の部分にも適用してもよい。   In the embodiment of the present invention, the engine support 18 is applied to two of the four engine supports that are difficult to access, but may be applied to other parts.

本発明の実施例においては、補強Ｌ形板２４は、板を曲げて形成されているが、平板を溶接接合して断面Ｌ形に形成してもよい。   In the embodiment of the present invention, the reinforcing L-shaped plate 24 is formed by bending a plate, but may be formed in a cross-sectional L shape by welding a flat plate.

また、本発明の実施例においては、機体フレームは建設機械である油圧ショベルの旋回フレームであるが、他の建設機械の機体フレームに適用できるのはいうまでもない。   In the embodiment of the present invention, the body frame is a swing frame of a hydraulic excavator that is a construction machine, but it is needless to say that the body frame can be applied to a body frame of another construction machine.

２：油圧ショベル（建設機械）
８：旋回フレーム（機体フレーム）
１８：エンジンサポート
２０：縦板
２０ａ：ボルト穴
２０ｂ：天板部
２２：縦板
２２ａ：連結部
２４：補強Ｌ形板
Ｆ：側面
Ｒ：稜線部
Ｓ：アクセス空間 2: Excavator (construction machine)
8: Swivel frame (airframe frame)
18: Engine support 20: Vertical plate 20a: Bolt hole 20b: Top plate portion 22: Vertical plate 22a: Connection portion 24: Reinforcement L-shaped plate F: Side surface R: Ridge portion S: Access space

Claims (1)

機体フレームに設置された、エンジンを支持する複数個のエンジンサポートの一個または複数個が、
機体フレームの側面に前後方向に間隔を置いて、下端部を接合し立設された一対の縦板と、
この一対の縦板の間に断面Ｌ形を成して前後方向に延び、前後方向両端部が該一対の縦板のそれぞれに接合された補強Ｌ形板を有し、
一方の縦板が、その上端部に、他方の縦板側に向けて水平に延び他方の縦板の上端に接合された、エンジンを載置支持するボルト穴を有した天板部を備え、
他方の縦板が、その上端部に、一方の縦板の天板部に沿って延び天板部に当接接合された連結部を備え、
上記補強Ｌ形板は、Ｌ形の稜線部が該機体フレームの側面から離れた側に位置付けられ、該機体フレームの側面の側に位置するＬ形の一辺および他辺が一対の縦板に対して上下方向に位置付けられ、かつ該天板部との間に、該稜線部の側から、ボルト穴を通したボルトに取付けるナットのアクセス空間を備えている、
ことを特徴とする建設機械のエンジンサポート。 One or more engine supports installed on the fuselage frame to support the engine
A pair of vertical plates that are vertically installed on the side surface of the fuselage frame with a gap in the front-rear direction ,
Extending in the longitudinal direction at an L-like section shape in the pair of vertical plates, have a reinforcing L-shaped plates which both front-back ends is joined to each of the pair of vertical plates,
One vertical plate is provided with a top plate portion having a bolt hole for mounting and supporting the engine, which extends horizontally toward the other vertical plate side and is joined to the upper end of the other vertical plate at the upper end portion thereof.
The other vertical plate has a connecting portion that extends along the top plate portion of the one vertical plate and is abutted and joined to the top plate portion at the upper end portion thereof,
The reinforcing L Katachiban the ridge portion of the L-shaped is positioned on the side away from the side of the body frame, L-shaped side and the other side located on the side of the side surface of the該機body frame with respect to a pair of vertical plates And an access space for a nut to be attached to a bolt through a bolt hole from the side of the ridge line portion between the top plate portion and the top plate portion.
The engine support for construction machinery.
JP2013266234A 2013-12-25 2013-12-25 Engine support for construction machinery Active JP5981907B2 (en)

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