JP2008174087A - Crawler type running gear - Google Patents

Crawler type running gear Download PDF

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Publication number
JP2008174087A
JP2008174087A JP2007009244A JP2007009244A JP2008174087A JP 2008174087 A JP2008174087 A JP 2008174087A JP 2007009244 A JP2007009244 A JP 2007009244A JP 2007009244 A JP2007009244 A JP 2007009244A JP 2008174087 A JP2008174087 A JP 2008174087A
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swing
frame
main frame
swing shaft
plate
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JP4597147B2 (en
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Satoru Tsubokura
哲 坪倉
Norifumi Adachi
典文 足立
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Kubota Corp
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Kubota Corp
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Priority to JP2007009244A priority Critical patent/JP4597147B2/en
Priority to KR1020070088867A priority patent/KR100901907B1/en
Priority to MYPI20071482A priority patent/MY155304A/en
Priority to MYPI20115794 priority patent/MY152809A/en
Priority to CN2007101629129A priority patent/CN101224763B/en
Publication of JP2008174087A publication Critical patent/JP2008174087A/en
Priority to KR1020090000591A priority patent/KR100945110B1/en
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Publication of JP4597147B2 publication Critical patent/JP4597147B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent accumulation of earth on a main frame of a rocking frame, in a crawler type running gear in which a crawler belt wound on a driving wheel, front and rear idlers and a tracker roller is circulated and traveled by supporting the front and rear idlers and tracker roller by the rocking frame rockingly supported by a frame support body fixed to a vehicle body via a rocking shaft to rotate and drive the driving wheel positioned above the tracker roller. <P>SOLUTION: The rocking frame 9 comprises the main frame 26 having front and rear idler support parts 24, 25 supporting the front and rear idlers 10, 11 and fitted with the tracker roller 12; the rocking shaft 27 arranged in the upper side of the main frame 26; a front connection member 28 for connecting the rocking shaft 27 to the front idler support part 24; and a rear connection member 29 for connecting the rocking shaft 27 to the rear idler support part 25. A space between the front and rear connection members 28, 29 and the main frame 26 is opened in the right/left direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、クローラ式走行装置に関するものである。   The present invention relates to a crawler type traveling device.

従来、クローラ式走行装置として、トラクタ等の走行車輌の車輪の替わりに取り付けられるセミクローラ形のクローラ式走行装置があり、このセミクローラ形のクローラ式走行装置として、走行車輌の車体側に固定されるフレーム支持体に揺動軸を介して左右方向の軸心回りに揺動自在に支持される揺動フレームを備え、この揺動フレームに前後のアイドラと該前後アイドラ間に配置された複数の転輪とを支持し、転輪の上方側に配置されていて車体側に左右方向の軸心回りに回転自在に支持される駆動輪を備え、この駆動輪を走行車輌の車軸によって回転駆動することにより、前記駆動輪，前後アイドラ及び転輪にわたって巻き掛けられたクローラベルトが循環回走されるように構成されているものがある（特許文献１参照）。   2. Description of the Related Art Conventionally, as a crawler type traveling device, there is a semi-crawler type crawler type traveling device that is attached in place of a wheel of a traveling vehicle such as a tractor, and a frame fixed to the vehicle body side of the traveling vehicle as the semi-crawler type crawler type traveling device. The support includes a swing frame that is swingably supported about a left-right axial center via a swing shaft, and the swing frame includes a plurality of wheels disposed between the front and rear idlers and the front and rear idlers. And driving wheels that are disposed on the upper side of the wheels and are supported on the vehicle body so as to be rotatable about the axis in the left-right direction. The driving wheels are driven to rotate by the axle of the traveling vehicle. The crawler belt wound around the drive wheel, the front and rear idlers, and the rollers is configured to be circulated (see Patent Document 1).

前記従来のクローラ式走行装置の揺動フレームは、前後のアイドラを支持すると共に転輪を支持するメインフレームと、このメインフレームの左右方向内端側から上方に延設され且つ板面が左右方向を向く支持プレートと、この支持プレートの上端側に固定され且つフレーム支持体に左右方向の軸心回りに回動自在に支持される揺動軸と、この揺動軸側からメインフレームに至るように配置されていて支持プレートの左右方向外面に溶接固定された前後一対の補強プレートとから主構成されている。
特開２００４−１４８８７２号公報 The swing frame of the conventional crawler type traveling device includes a main frame that supports the front and rear idlers and the wheels, and extends upward from the inner side of the main frame in the left-right direction, and the plate surface extends in the left-right direction. A support plate that faces the upper end of the support plate, a swing shaft that is fixed to the upper end side of the support plate and that is supported by the frame support so as to be rotatable about a horizontal axis, and that extends from the swing shaft side to the main frame. And a pair of front and rear reinforcing plates which are welded and fixed to the outer surface in the left-right direction of the support plate.
JP 2004-148872 A

前記従来のクローラ式走行装置にあっては、揺動フレームが、メインフレームの左右方向内端側から上方に延設され且つ板面が左右方向を向く支持プレートと、この支持プレート上端側に固定された揺動軸からメインフレームに至るように配置されていて支持プレートの左右方向外面に溶接固定された前後一対の補強プレートとを備えているので、支持プレート及び補強プレートによってメインフレーム上に載った土が逃げにくく（揺動フレームのメインフレーム上に土が溜まり易く）、メインフレーム上に溜まった土が走行車輌の移動中に道路上に落ち、その処理に苦労することや、洗車する際にメインフレーム上に溜まった土を落とすのに苦労するなどの問題がある。   In the conventional crawler type traveling device, the swing frame extends upward from the inner end side in the left-right direction of the main frame and the plate surface faces in the left-right direction, and is fixed to the upper end side of the support plate. And a pair of front and rear reinforcing plates which are arranged so as to extend from the swing shaft to the main frame and are welded to the left and right outer surfaces of the supporting plate, so that they are mounted on the main frame by the supporting plate and the reinforcing plate. Soil is difficult to escape (soil tends to accumulate on the main frame of the swing frame), and the soil accumulated on the main frame falls on the road while the traveling vehicle is moving, and it is difficult to handle or wash the vehicle. However, there are problems such as struggling to remove the soil accumulated on the main frame.

そこで、本発明は、前記問題点に鑑みて、揺動フレームのメインフレーム上に土が溜まり難くしたクローラ式走行装置を提供することを目的とする。   SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a crawler type traveling device that makes it difficult for soil to accumulate on a main frame of a swing frame.

前記技術的課題を解決するために本発明が講じた技術的手段は、走行車輌の車体側に固定されるフレーム支持体に揺動軸を介して左右方向の軸心回りに揺動自在に支持される揺動フレームを備え、この揺動フレームに前後のアイドラと該前後アイドラ間に配置された複数の転輪とを支持し、転輪の上方側に配置されていて車体側に左右方向の軸心回りに回転自在に支持される駆動輪を備え、この駆動輪を走行車輌の車軸によって回転駆動することにより、前記駆動輪，前後アイドラ及び転輪にわたって巻き掛けられたクローラベルトが循環回走されるように構成されたクローラ式走行装置であって、
前記揺動フレームは、前後のアイドラを支持する前後のアイドラ支持部を備え且つ転輪が取り付けられるメインフレームと、このメインフレームの上方側に配置された前記揺動軸と、この揺動軸と前アイドラ支持部とを連結する前連結部材と、揺動軸と後アイドラ支持部とを連結する後連結部材とを備えてなり、前後の連結部材とメインフレームとの間が左右方向に開口状とされていることを特徴とする。 In order to solve the above technical problem, the technical means taken by the present invention is to support a frame support fixed to the vehicle body side of a traveling vehicle so as to be swingable about a horizontal axis through a swing shaft. A swing frame that supports the front and rear idlers and a plurality of wheels disposed between the front and rear idlers. The swing frame is disposed on the upper side of the wheels and extends laterally toward the vehicle body. A driving wheel supported rotatably around an axis is provided, and the crawler belt wound around the driving wheel, the front and rear idlers and the wheels is circulated and circulated by rotating the driving wheel by the axle of the traveling vehicle. A crawler type traveling device configured to be
The swing frame includes a main frame that includes front and rear idler support portions that support the front and rear idlers and to which wheels are attached, the swing shaft that is disposed above the main frame, and the swing shaft; It comprises a front connecting member that connects the front idler support part, and a rear connecting member that connects the swing shaft and the rear idler support part. The front and rear connecting members and the main frame are open in the left-right direction. It is said that it is said.

また、揺動フレームは、前後の連結部材の揺動軸側とメインフレームの前後方向中間部とを連結する中間連結部材を備えていてもよい。
また、前後の連結部材がパイプ材によって構成され、前連結部材は揺動軸から前アイドラ支持部に向けて前下がり傾斜状とされ、後連結部材は揺動軸から後アイドラ支持部に向けて後下がり傾斜状とされているのがよい。 The swing frame may include an intermediate connection member that connects the swing shaft side of the front and rear connection members and the intermediate portion in the front-rear direction of the main frame.
The front and rear connecting members are made of pipe material, the front connecting member is inclined downward from the swing shaft toward the front idler support portion, and the rear connection member is directed from the swing shaft toward the rear idler support portion. It is good that it is inclined downward.

本発明によれば、揺動フレームを、前後のアイドラを支持する前後のアイドラ支持部が設けられ且つ転輪が取り付けられるメインフレームと、このメインフレームの上方側に配置された揺動軸と、この揺動軸と前アイドラ支持部とを連結する前連結部材と、揺動軸と後アイドラ支持部とを連結する後連結部材とを備えて構成して、前後の連結部材とメインフレームとの間を左右方向に開口状としたことにより、メインフレーム上に土が溜まり難くいという効果を奏する。   According to the present invention, the swing frame includes a main frame provided with front and rear idler support portions for supporting the front and rear idlers and to which a wheel is attached, and a swing shaft disposed on the upper side of the main frame, A front connecting member that connects the swing shaft and the front idler support portion, and a rear connection member that connects the swing shaft and the rear idler support portion. By opening the space in the left-right direction, there is an effect that soil does not easily accumulate on the main frame.

以下、本発明の実施の形態を図面を参照して説明する。
図２において、１は、左右一対の前後輪により走行可能とした４輪トラクタの後輪の替わりにセミクローラ形のクローラ式走行装置２を左右独立して取り付けた半履帯トラクタ１（走行車輌）である。
トラクタ１の車体１Ａは、エンジン３の後部にフライホイールハウジングを介して動力伝達ケース４を取り付けて主構成され、動力伝達ケース４は、例えばクラッチハウジングの後部にミッションケースを連結してなり、エンジン３からの動力をクローラ式走行装置２を駆動する車軸５（後車軸）に伝達する動力伝達機構を内蔵している。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 2, reference numeral 1 denotes a semi-crawler tractor 1 (traveling vehicle) in which a semi-crawler type crawler type traveling device 2 is independently attached to the left and right instead of the rear wheels of a four-wheel tractor that can be driven by a pair of left and right front and rear wheels. is there.
The vehicle body 1A of the tractor 1 is mainly configured by attaching a power transmission case 4 to the rear portion of the engine 3 via a flywheel housing. The power transmission case 4 is formed by connecting a transmission case to the rear portion of the clutch housing, for example. 3 includes a power transmission mechanism that transmits power from 3 to an axle 5 (rear axle) that drives the crawler type traveling device 2.

前記後車軸５は車体１Ａ後部の左右両側に設けられた左右各車軸ケース６（後車軸ケース）から左右方向外方に突出していると共に該後車軸ケース６に左右方向の軸心回りに回転自在に支持されており、左右各後車軸５の左右方向外端側には取付フランジ７が設けられている。
左右各クローラ式走行装置２は、図１〜図９に示すように、トラクタ１の車体１Ａ側に固定されたフレーム支持体８と、このフレーム支持体８に左右方向の軸心回りに揺動自在に支持された揺動フレーム９と、この揺動フレーム９の前後に設けられた前後のアイドラ１０，１１と、揺動フレーム９の前後アイドラ１０，１１間に配置された複数（本実施の形態では３つ）の転輪１２と、これら転輪１２の上方側に配置されていて車体１Ａ側に左右方向の軸心回りに回転自在に支持された駆動輪１３（スプロケット）と、駆動輪１３，前後アイドラ１０，１１及び転輪１２にわたって巻き掛けられたクローラベルト１４とを備えている。 The rear axle 5 protrudes outward in the left-right direction from left and right axle cases 6 (rear axle cases) provided on the left and right sides of the rear portion of the vehicle body 1A, and is freely rotatable about the left-right axis about the rear axle case 6. A mounting flange 7 is provided on the outer ends of the left and right rear axles 5 in the left-right direction.
As shown in FIGS. 1 to 9, each of the left and right crawler type traveling devices 2 swings around a frame support 8 fixed to the vehicle body 1 </ b> A side of the tractor 1, and the frame support 8 around a horizontal axis. A swing frame 9 that is freely supported, front and rear idlers 10 and 11 provided before and after the swing frame 9, and a plurality of (this embodiment) disposed between the front and rear idlers 10 and 11 of the swing frame 9 The three wheels 12 in the form, a drive wheel 13 (sprocket) that is disposed on the upper side of these wheels 12 and is supported on the vehicle body 1A so as to be rotatable about a left-right axis, and a drive wheel 13, crawler belt 14 wound around front and rear idlers 10 and 11 and roller 12.

駆動輪１３は後車軸５の外端側の取付フランジ７にボルト固定されていて後車軸５と共に後車軸ケース６に左右方向の軸心回りに回転自在に支持されている。
この駆動輪１３の外周側には係合歯１５が周方向に所定間隔をおいて設けられ、一方、クローラベルト１４には、前記係合歯１５が挿入されて係合する係合孔１６がベルト長手方向に所定間隔をおいて形成され、駆動輪１３をトラクタ１の後車軸５によって回転駆動することによりクローラベルト１４が循環回走されるように構成されている。
フレーム支持体８は、後車軸ケース６に設けられた取付部６ａを挟むように配置された前後一対の取付板１７と、この前後取付板１７の左右両側に配置されていて前後取付板１７の下端側から下方側に延出するように設けられた左右一対の支持板１８と、この左右支持板１８の上端側同志を連結する連結板１９と、左右支持板１８を貫通する筒体からなる軸受部材２０とから主構成されている。 The drive wheel 13 is bolted to a mounting flange 7 on the outer end side of the rear axle 5 and is supported by the rear axle case 6 together with the rear axle 5 so as to be rotatable around a lateral axis.
Engagement teeth 15 are provided on the outer peripheral side of the drive wheel 13 at a predetermined interval in the circumferential direction. On the other hand, the crawler belt 14 has engagement holes 16 into which the engagement teeth 15 are inserted and engaged. The crawler belt 14 is formed so as to circulate and rotate when the drive wheels 13 are rotationally driven by the rear axle 5 of the tractor 1.
The frame support 8 is disposed on both left and right sides of the front and rear mounting plates 17 so as to sandwich the mounting portion 6 a provided on the rear axle case 6, and the front and rear mounting plates 17. It consists of a pair of left and right support plates 18 provided so as to extend downward from the lower end side, a connecting plate 19 that connects the upper end sides of the left and right support plates 18, and a cylinder that penetrates the left and right support plates 18. Mainly composed of the bearing member 20.

前後取付板１７と左右支持板１８と連結板１９とは相互に溶接されており、軸受部材２０は左右の支持板１８に溶接されている。
また、前後各取付板１７は該取付板１７を貫通して後車軸ケース６のネジ孔に螺合されたボルトによって後車軸ケース６に取付固定され、左右支持板１８は該左右支持板１８を貫通して後車軸ケース６のネジ孔に螺合されたボルトによって後車軸ケース６に取付固定されている。
また、軸受部材２０は左右方向の軸心を有し、該軸受部材２０は、その軸心が後車軸５の軸心の下方側で且つ前後方向に関して後車軸５の軸心と同位置に位置するように設けられている。 The front and rear mounting plates 17, the left and right support plates 18 and the connecting plate 19 are welded to each other, and the bearing member 20 is welded to the left and right support plates 18.
The front and rear mounting plates 17 are fixedly attached to the rear axle case 6 by bolts that pass through the mounting plate 17 and are screwed into the screw holes of the rear axle case 6, and the left and right support plates 18 connect the left and right support plates 18. It is fixedly attached to the rear axle case 6 by bolts that pass through and are screwed into the screw holes of the rear axle case 6.
Further, the bearing member 20 has a left-right axial center, and the axial center of the bearing member 20 is located below the axial center of the rear axle 5 and at the same position as the axial center of the rear axle 5 in the front-rear direction. It is provided to do.

また、左右方向外方側の支持板１８は左右方向内方側の支持板１８よりも前方側に延設された延設部２１を有する。
また、左右のフレーム支持体８の外側の支持板１８同志は、図９に示す連結体２２によって連結されており、この連結体２２は車体１Ａの下面側にボルト固定された被取付板２３を備えている。
揺動フレーム９は、前後のアイドラ１０，１１を支持する前後のアイドラ支持部２４，２５を備えたメインフレーム２６と、このメインフレーム２６の前後方向中途部上方に左右方向に配置された揺動軸２７と、この揺動軸２７と前アイドラ支持部２４とを連結する前連結部材２８と、揺動軸２７と後アイドラ支持部２５とを連結する後連結部材２９と、前後の連結部材２８，２９の揺動軸２７側とメインフレーム２６の前後方向の中間部とを連結する中間連結部材３０とから主構成されている。 Further, the support plate 18 on the outer side in the left-right direction has an extending portion 21 that extends to the front side of the support plate 18 on the inner side in the left-right direction.
Further, the support plates 18 on the outside of the left and right frame supports 8 are connected by a connecting body 22 shown in FIG. 9, and this connecting body 22 has a mounting plate 23 that is bolted to the lower surface side of the vehicle body 1A. I have.
The swing frame 9 includes a main frame 26 having front and rear idler support portions 24 and 25 that support the front and rear idlers 10 and 11, and a swing disposed in the left and right direction above the middle portion of the main frame 26 in the front and rear direction. A shaft 27, a front connecting member 28 that connects the swing shaft 27 and the front idler support 24, a rear connection member 29 that connects the swing shaft 27 and the rear idler support 25, and front and rear connecting members 28 , 29 and an intermediate connecting member 30 that connects the side of the main frame 26 in the front-rear direction.

前記構成の揺動フレーム９にあっては、前後の連結部材２８，２９とメインフレーム２６との間（本実施の形態にあっては、前後の連結部材２８，２９とメインフレーム２６と中間連結部材３０とで囲まれる部分）が左右方向に開口状とされており、メインフレーム２６上に土が溜まり難くい構造に形成されている。
前記メインフレーム２６は、厚肉の帯板材で形成され且つ板厚方向が上下方向で帯長手方向が前後方向となるように配置された主板３１を備え、この主板３１の前部側に前アイドラ支持部２４が設けられ、主板３１の後部側に後アイドラ支持部２５が設けられている。 In the swing frame 9 having the above-described configuration, between the front and rear connecting members 28 and 29 and the main frame 26 (in this embodiment, the front and rear connecting members 28 and 29 and the main frame 26 are intermediately connected. A portion surrounded by the member 30 is formed in an opening shape in the left-right direction, and is formed in a structure in which soil does not easily accumulate on the main frame 26.
The main frame 26 includes a main plate 31 that is formed of a thick band plate material and is disposed so that the plate thickness direction is the vertical direction and the longitudinal direction of the band is the front-rear direction, and a front idler is disposed on the front side of the main plate 31. A support portion 24 is provided, and a rear idler support portion 25 is provided on the rear side of the main plate 31.

前記主板３１は駆動輪１３の下方に配置され、該主板３１の下面側には、前端側，後端側及び前後方向中央側にそれぞれ転輪取付ブラケット３２が取付固定され、各転輪取付ブラケット３２に転輪１２が左右軸回りに回転自在に取り付けられている。
また、主板３１の下面にはクローラベルト１４の外れを防止するクローラ外れ防止部材３３が設けられている。
前アイドラ支持部２４は、クローラベルト１４にテンションを付与するテンション付与装置３４と、前アイドラ１０を支持する前支持ブラケット３５とを有する。 The main plate 31 is disposed below the drive wheel 13, and on the lower surface side of the main plate 31, a wheel mounting bracket 32 is mounted and fixed on the front end side, the rear end side, and the front-rear direction center side. A wheel 12 is attached to 32 so as to be rotatable about a left-right axis.
Further, a crawler detachment preventing member 33 that prevents the crawler belt 14 from detaching is provided on the lower surface of the main plate 31.
The front idler support portion 24 includes a tension applying device 34 that applies tension to the crawler belt 14 and a front support bracket 35 that supports the front idler 10.

テンション付与装置３４は、主板３１の前部上面側に固定された外筒体３６と、この外筒体３６の後端に固着され且つ主板３１に立設された後壁３７と、外筒体３６に前側から出退自在に挿入された内筒体３８と、この内筒体３８の前端側に固着された前壁３９と、後壁３７に前後方向進退自在で且つ位置固定自在に取り付けられたバネ受け体４０と、このバネ受け体４０と前壁３９との間に介装されたバネ４１とを備えている。
前アイドラ１０を支持する前支持ブラケット３５はテンション付与装置３４の前壁３９の前面に設けられ、前アイドラ１０は前支持ブラケット３５の前面側にボルト固定された取付部材４２に左右方向の軸心廻りに回動自在に取り付けられており、前記バネ４１の付勢力によって前アイドラ１０がクローラベルト１４に押し付けられることでクローラベルト１４にテンションが付与され、バネ受け体４０を前後方向に進退させることにより、クローラベルト１４の張力が調整可能とされている。 The tension applying device 34 includes an outer cylinder 36 fixed to the front upper surface side of the main plate 31, a rear wall 37 fixed to the rear end of the outer cylinder 36 and standing on the main plate 31, and an outer cylinder. 36 is attached to a front wall 39 fixed to the front end side of the inner cylinder 38 and the rear wall 37 so as to be movable forward and backward and to be fixed in position. A spring receiver 40 and a spring 41 interposed between the spring receiver 40 and the front wall 39.
The front support bracket 35 that supports the front idler 10 is provided on the front surface of the front wall 39 of the tension applying device 34, and the front idler 10 is axially centered in the left-right direction on the mounting member 42 that is bolted to the front side of the front support bracket 35. The front idler 10 is pressed against the crawler belt 14 by the urging force of the spring 41 so that tension is applied to the crawler belt 14 and the spring receiver 40 is moved forward and backward. Thus, the tension of the crawler belt 14 can be adjusted.

前記後壁３７は主板３１から左右方向内方側に延出されている。
後アイドラ支持部２５は、主板３１上に固着された下壁４３ａと該下壁４３ａの後端から上方に延出された縦壁４３ｂとから側面視Ｌ字形に形成された取付プレート４３と、この取付プレート４３の縦壁４３ｂ後面に固着された後支持ブラケット４４とを有し、後支持ブラケット４４の後面側にボルト固定された取付部材４５に後アイドラ１１が左右軸回りに回転自在に取り付けられている。
取付プレート４３は主板３１から左右方向内方側に延出されている。 The rear wall 37 extends from the main plate 31 inward in the left-right direction.
The rear idler support portion 25 includes a mounting plate 43 formed in an L shape in a side view from a lower wall 43a fixed on the main plate 31 and a vertical wall 43b extending upward from the rear end of the lower wall 43a. The rear idler 11 is attached to a mounting member 45 having a rear support bracket 44 fixed to the rear surface of the vertical wall 43b of the mounting plate 43 and bolted to the rear surface side of the rear support bracket 44 so as to be rotatable about the left and right axis. It has been.
The mounting plate 43 extends from the main plate 31 inward in the left-right direction.

前後の連結部材２８，２９はパイプ材によって構成され、特に本実施の形態では角パイプによって構成されており、且つ駆動輪１３の左右方向内方側に配置されている。
前連結部材２８は、長手方向の一端側が揺動軸２７の左右方向外端側に固着され、長手方向の他端側が前アイドラ支持部２４の後壁３７の前記延出部分に固着されており、揺動軸２７から前アイドラ支持部２４に向けて前下がり傾斜状とされている。
また、前連結部材２８の下端側の外側方には、主板３１，後壁３７及び前連結部材２８に溶接された補強部材４６が設けられている。 The front and rear connecting members 28 and 29 are made of a pipe material, and in particular in the present embodiment, are made of square pipes and are arranged on the inner side in the left-right direction of the drive wheel 13.
The front connecting member 28 has one end side in the longitudinal direction fixed to the left and right outer end sides of the swing shaft 27, and the other end side in the longitudinal direction fixed to the extending portion of the rear wall 37 of the front idler support portion 24. The front shaft is inclined downward from the swing shaft 27 toward the front idler support portion 24.
Further, a reinforcing member 46 welded to the main plate 31, the rear wall 37, and the front connecting member 28 is provided on the outer side on the lower end side of the front connecting member 28.

後連結部材２９は、長手方向の一端側が揺動軸２７の左右方向外端側に固着され、長手方向の他端側が後アイドラ支持部２５の取付プレート４３の縦壁４３ｂの前記延出部分に固着されており、揺動軸２７から後アイドラ支持部２５に向けて後下がり傾斜状とされている。
また、後連結部材２９の下端側の左右両側には、取付プレート４３及び後連結部材２９に溶接された補強部材４７が設けられている。
中間連結部材３０は、上下方向の軸心を有する有底の四角筒状に形成され、上端側が前連結部材２８の後端側下面及び後連結部材２９の前端側下面に固着され、下端側が主板３１の左右方向内側面に固着されている。 The rear connecting member 29 has one end side in the longitudinal direction fixed to the left and right outer end sides of the swing shaft 27, and the other end side in the longitudinal direction is connected to the extending portion of the vertical wall 43 b of the mounting plate 43 of the rear idler support portion 25. It is fixed, and is inclined downward from the swing shaft 27 toward the rear idler support portion 25.
Further, a reinforcing member 47 welded to the mounting plate 43 and the rear connecting member 29 is provided on both the left and right sides of the lower end side of the rear connecting member 29.
The intermediate connecting member 30 is formed in a bottomed rectangular tube shape having an axis in the vertical direction, the upper end side is fixed to the rear end side lower surface of the front connecting member 28 and the front end side lower surface of the rear connecting member 29, and the lower end side is the main plate. 31 is fixed to the inner side surface in the left-right direction.

本実施の形態では、中間連結部材３０は左右方向外方側の外側部材４８と、左右方向内方側の内側部材４９との二部材から形成されている。
外側部材４８は、中間連結部材３０の左右方向外側部を構成する外側壁３０ａと、この外側壁３０ａの前後両側から左右方向内方側に延出していて中間連結部材３０の前後部を構成する前後壁３０ｂ，３０ｃとから平面視コ字形に形成されており、この外側部材４８の上端が前連結部材２８の後端側下面及び後連結部材２９の前端側下面に固着され、外側壁３０ａの下端側が主板３１の左右方向内側面に固着されている。 In the present embodiment, the intermediate connecting member 30 is formed by two members, an outer member 48 on the outer side in the left-right direction and an inner member 49 on the inner side in the left-right direction.
The outer member 48 extends to the inner side in the left-right direction from both the front and rear sides of the outer wall 30a and constitutes the front and rear portions of the intermediate connecting member 30. The front and rear walls 30b, 30c are formed in a U shape in plan view, and the upper end of the outer member 48 is fixed to the lower surface of the rear end side of the front connecting member 28 and the lower surface of the front end side of the rear connecting member 29. The lower end side is fixed to the inner side surface of the main plate 31 in the left-right direction.

内側部材４９は、中間連結部材３０の左右方向内側部を構成する内側壁３０ｄと、この内側壁３０ｄの下端から左右方向外方に延出していて中間連結部材３０の底部を構成する底壁３０ｅとからＬ字形に形成されている。
中間連結部材３０の下部には、該中間連結部材３０の外側面に固着された縦壁５０ａと、主板３１の上面に固着された下壁５０ｂとからＬ字形に形成された補強部材５０が設けられている。
揺動軸２７は、左右方向の軸心を有する筒体からなる軸本体５１と、この軸本体５１の左右方向外端側を塞ぐ外側閉塞板５２と、軸本体５１の左右方向内端側に挿入されて固着された内側閉塞部材５３とを有する。 The inner member 49 includes an inner side wall 30d that constitutes the inner side portion of the intermediate connecting member 30 in the left-right direction, and a bottom wall 30e that extends outward in the left-right direction from the lower end of the inner side wall 30d and constitutes the bottom portion of the intermediate connecting member 30. And is formed in an L shape.
A reinforcing member 50 formed in an L shape from a vertical wall 50 a fixed to the outer surface of the intermediate connecting member 30 and a lower wall 50 b fixed to the upper surface of the main plate 31 is provided at the lower portion of the intermediate connecting member 30. It has been.
The swing shaft 27 includes a shaft main body 51 formed of a cylindrical body having a left-right axial center, an outer closing plate 52 that closes the left-right outer end of the shaft main body 51, and a left-right inner end of the shaft main body 51. And an inner closing member 53 which is inserted and fixed.

内側閉塞部材５３には左右方向の軸心を有するネジ孔５４が貫通形成されている。
この揺動軸２７は、左右方向中途部から内端に至る部分がフレーム支持体８の軸受部材２０に該軸受部材２０の左右方向外端側から同心状に挿入されて該軸受部材２０に左右方向の軸心回りに回動自在に支持されており、これによって揺動フレーム９がフレーム支持体８に揺動軸２７回りに揺動自在に支持されている。
また、ボルト５５を、軸受部材２０の左右方向内端側に配置した抜止め板５６を貫通させて前記内側閉塞部材５３のネジ孔５４に螺合させることにより、揺動軸２７の軸受部材２０からの抜止めが図られている。 A screw hole 54 having a horizontal axis is formed through the inner closing member 53.
The swing shaft 27 is inserted into the bearing member 20 of the frame support 8 concentrically from the left and right outer ends of the frame support member 8 so that the portion extending from the middle in the left and right direction to the inner end is inserted into the bearing member 20 in the left and right direction. The swing frame 9 is supported by the frame support 8 so as to be swingable about the swing shaft 27.
Further, the bolt 55 is threaded into the screw hole 54 of the inner closing member 53 through the retaining plate 56 disposed on the inner end side in the left-right direction of the bearing member 20, so that the bearing member 20 of the swing shaft 27 is engaged. It is designed to keep it from coming off.

前記構成の揺動フレーム９にあっては、角パイプからなる前後の連結部材２８，２９によって揺動軸２７とメインフレーム２６の前後アイドラ支持部２４，２５とをつないでトラス構造とすることにより、強度確保が図られている。
このクローラ式走行装置２は、揺動フレーム９の揺動軸２７回りの所定範囲以上の揺動を規制する揺動規制手段を備えている。
この揺動規制手段は、揺動フレーム９に一体揺動自在な揺動プレート５７と、この揺動プレート５７に形成された揺動規制用開口５８と、この揺動規制用開口５８の縁部５８ａ，５８ｂに接当して揺動プレート５７の所定範囲以上の揺動を規制する揺動規制体５９と、この揺動規制体５９に取り付けられた外側規制部材６０とを備えてなる。 In the swing frame 9 having the above-described structure, a truss structure is formed by connecting the swing shaft 27 and the front and rear idler support portions 24 and 25 of the main frame 26 by the front and rear connecting members 28 and 29 formed of square pipes. Ensuring strength is achieved.
This crawler type traveling device 2 is provided with a rocking restricting means for restricting rocking of the rocking frame 9 around a rocking shaft 27 within a predetermined range.
The swing restricting means includes a swing plate 57 that can swing integrally with the swing frame 9, a swing restricting opening 58 formed in the swing plate 57, and an edge of the swing restricting opening 58. A swing restricting body 59 that contacts the swinging plates 57 a and 58 b and restricts the swing of the swing plate 57 beyond a predetermined range, and an outer restricting member 60 attached to the swing restricting body 59 are provided.

揺動プレート５７は、フレーム支持体８の左右方向外方側の支持板１８の外側方に板面が左右方向を向くように（左右方向で対面状に）配置されている。
この揺動プレート５７の後部側には軸挿通孔６１が形成され、この軸挿通孔６１に揺動軸２７がその左右方向内端側から挿通されていると共に揺動プレート５７が前連結部材２８及び後連結部材２９の上部側（揺動軸２７側）の左右方向内側面並びに中間連結部材３０の内側部材４９の上端に接当していて、該揺動プレート５７が揺動軸２７，前連結部材２８，後連結部材２９及び中間連結部材３０の内側部材４９に溶接固定されている。 The swing plate 57 is disposed on the outer side of the support plate 18 on the outer side in the left-right direction of the frame support 8 so that the plate surface faces in the left-right direction (facing in the left-right direction).
A shaft insertion hole 61 is formed on the rear side of the swing plate 57. The swing shaft 27 is inserted into the shaft insertion hole 61 from the inner side in the left-right direction, and the swing plate 57 is connected to the front connecting member 28. And the upper and lower inner surfaces of the rear connecting member 29 (on the swinging shaft 27 side) and the upper end of the inner member 49 of the intermediate connecting member 30 are in contact with each other. The connecting member 28, the rear connecting member 29, and the inner member 49 of the intermediate connecting member 30 are fixed by welding.

また、揺動プレート５７の前端側と前連結部材２８の前下端側とはアングル材からなる補強部材６２によって連結されている。
また、揺動プレート５７は、フレーム支持体８の軸受部材２０の左右方向外端側に接当している。
また、揺動プレート５７の前部側は揺動軸２７から前方に突出状とされており、この前部側が揺動軸２７回りに上下に揺動するよう構成されており、揺動規制用開口５８は揺動軸２７の前方側で且つフレーム支持体８の左右方向外方側の支持板１８の延設部２１の側方に対応する位置に形成されている。 The front end side of the swing plate 57 and the front lower end side of the front connecting member 28 are connected by a reinforcing member 62 made of an angle material.
Further, the swing plate 57 is in contact with the left and right outer ends of the bearing member 20 of the frame support 8.
The front side of the swing plate 57 protrudes forward from the swing shaft 27, and the front side is configured to swing up and down around the swing shaft 27. The opening 58 is formed at a position corresponding to the front side of the swing shaft 27 and the side of the extending portion 21 of the support plate 18 on the outer side in the left-right direction of the frame support 8.

揺動規制体５９は、フレーム支持体８の左右方向外方側の支持板１８の延設部２１の外側面で且つ揺動規制用開口５８に左右方向で対応する位置に溶接固定されていると共に、該揺動規制体５９には揺動規制用開口５８内に挿入された係合部６３が形成されている。
したがって、揺動フレーム９が揺動軸２７回りに揺動すると、揺動プレート５７の前部側が上下に一体揺動し、揺動規制用開口５８の上下の縁部５８ａ，５８ｂ（揺動方向の縁部）が係合部６３に接当することにより揺動フレーム９の所定範囲以上の揺動の規制がなされる。 The swing restricting body 59 is welded and fixed to the outer surface of the extending portion 21 of the support plate 18 on the outer side in the left and right direction of the frame support 8 and to the position corresponding to the swing restricting opening 58 in the left and right direction. At the same time, the swing restricting body 59 is formed with an engaging portion 63 inserted into the swing restricting opening 58.
Therefore, when the swing frame 9 swings around the swing shaft 27, the front side of the swing plate 57 swings up and down integrally, and the upper and lower edges 58a and 58b of the swing restriction opening 58 (swing direction). Of the swing frame 9 is restricted to a predetermined range or more by contacting the engaging portion 63.

前記係合部６３には、その左右方向外側から形成されたネジ孔６４が前後一対形成されている。
また、揺動規制体５９には、係合部６３の前後両側に位置していて揺動プレート５７の左右方向内側面に対向する内方規制部６５が設けられていて、この内方規制部６５が揺動プレート５７に係合することで揺動フレーム９の左右方向内方側への動きが規制される。
外側規制部材６０は、板材によって形成されて、揺動規制体５９の係合部６３の左右方向外側方で且つ揺動プレート５７の左右方向外側方に板厚方向が左右方向に一致するように配置されていて、該外側規制部材６０を貫通して係合部６３のネジ孔６４に螺合されるボルト６６によって外側規制部材６０が揺動規制体５９に取付固定されている。 The engaging portion 63 is formed with a pair of front and rear screw holes 64 formed from the outer side in the left-right direction.
Further, the swing restricting body 59 is provided with an inner restricting portion 65 that is located on both front and rear sides of the engaging portion 63 and faces the inner surface of the swing plate 57 in the left-right direction. When 65 is engaged with the swing plate 57, the inward movement of the swing frame 9 is restricted.
The outer regulating member 60 is formed of a plate material so that the plate thickness direction coincides with the left and right direction outward of the engaging portion 63 of the swing restricting body 59 and the outer side of the swing plate 57 in the left and right direction. The outer restricting member 60 is fixedly attached to the swing restricting body 59 by a bolt 66 that is disposed and passes through the outer restricting member 60 and is screwed into the screw hole 64 of the engaging portion 63.

この外側規制部材６０は、揺動規制用開口５８よりも前後幅が長く形成されており、該外側規制部材６０の前後両側が揺動プレート５７に係合することで揺動フレーム９の左右方向外方側への動きが規制される。
前記構成の揺動規制手段にあっては、揺動フレーム９の所定範囲以上の揺動を規制する機能と、揺動フレーム９の左右方向内外の動きを規制する機能とを有する構造のものをシンプルに形成することができる。
また、揺動規制用開口５８に土が溜まる惧れも少なく、揺動規制手段に溜まる土によって揺動フレーム９の揺動が阻害されるということも極めて少ない。 The outer restricting member 60 is formed to have a longer front and rear width than the swing restricting opening 58, and both the front and rear sides of the outer restricting member 60 are engaged with the swing plate 57, so The outward movement is restricted.
The swing restricting means having the above structure has a structure having a function of restricting the swing of the swing frame 9 beyond a predetermined range and a function of restricting the movement of the swing frame 9 in the left-right direction. It can be formed simply.
Further, there is little possibility that soil will accumulate in the swing restricting opening 58, and it is extremely unlikely that the swing of the swing frame 9 is hindered by the soil accumulated in the swing restricting means.

また、前後の連結部材２８，２９が傾斜状とされており、この前後の連結部材２８，２９の内側面に揺動プレート５７が固定されているので、揺動プレート５７の外側面において前後の連結部材２８，２９上に土が溜まることも少ない。
また、揺動規制体５９には、上下方向に貫通形成された貫通孔６７が形成されていて揺動規制体５９上に土が溜まりにくいように構成されている。
揺動規制手段及びその周辺に土が溜まりにくいので、洗車がし易いという効果も奏する。 Further, the front and rear connecting members 28 and 29 are inclined, and the swinging plate 57 is fixed to the inner side surfaces of the front and rear connecting members 28 and 29. There is little accumulation of soil on the connecting members 28 and 29.
Further, the swing restricting body 59 is formed with a through hole 67 penetratingly formed in the vertical direction so that soil is not easily accumulated on the swing restricting body 59.
Since the soil does not easily collect in the swing restricting means and the periphery thereof, there is an effect that the car can be easily washed.

なお、本発明にかかるクローラ式走行装置２が採用される走行車輌としてはトラクタ１以外の車輌であってもよく、また、クローラ式走行装置２は前輪の替わりに設けられてもよい。   In addition, a vehicle other than the tractor 1 may be used as a traveling vehicle in which the crawler traveling device 2 according to the present invention is adopted, and the crawler traveling device 2 may be provided instead of the front wheels.

クローラ式走行装置の側面図である。It is a side view of a crawler type traveling device. クローラ式走行装置を装着したトラクタの側面図である。It is a side view of a tractor equipped with a crawler type traveling device. フレーム支持体及び揺動フレームの側面図である。It is a side view of a frame support and a swing frame. クローラ式走行装置の背面図である。It is a rear view of a crawler type traveling device. 揺動フレームの側面図である。It is a side view of a rocking | fluctuation frame. 揺動フレームの一部破断平面図である。It is a partially broken plan view of a swing frame. （ａ）は揺動フレームの一部断面背面図、（ｂ）は図５のＡ−Ａ線矢示断面である。(A) is a partial cross-sectional rear view of the swing frame, and (b) is a cross-section taken along line AA in FIG. （ａ）はフレーム支持体の側面図、（ｂ）はフレーム支持体の一部断面背面図である。(A) is a side view of a frame support body, (b) is a partial cross-sectional rear view of a frame support body. （ａ）は図１のＢ矢示図、（ｂ）は揺動規制手段の側面拡大図、（ｃ）は揺動規制手段の平面断面図である。(A) is an arrow B view of FIG. 1, (b) is an enlarged side view of the swing restricting means, and (c) is a plan sectional view of the swing restricting means.

符号の説明Explanation of symbols

１ トラクタ（走行車輌）
１Ａ 車体
５ 車軸（後車軸）
８ フレーム支持体
９ 揺動フレーム
１０ 前アイドラ
１１ 後アイドラ
１２ 転輪
１３ 駆動輪
１４ クローラベルト
２４ 前アイドラ支持部
２５ 後アイドラ支持部
２６ メインフレーム
２７ 揺動軸
２８ 前連結部材
２９ 後連結部材
３０ 中間連結部材 1 Tractor (traveling vehicle)
1A Body 5 Axle (rear axle)
DESCRIPTION OF SYMBOLS 8 Frame support body 9 Swing frame 10 Front idler 11 Rear idler 12 Roller wheel 13 Drive wheel 14 Crawler belt 24 Front idler support part 25 Rear idler support part 26 Main frame 27 Oscillation shaft 28 Front connection member 29 Rear connection member 30 Intermediate Connecting member

Claims (3)

走行車輌（１）の車体（１Ａ）側に固定されるフレーム支持体（８）に揺動軸（２７）を介して左右方向の軸心回りに揺動自在に支持される揺動フレーム（９）を備え、この揺動フレーム（９）に前後のアイドラ（１０，１１）と該前後アイドラ（１０，１１）間に配置された複数の転輪（１２）とを支持し、転輪（１２）の上方側に配置されていて車体（１Ａ）側に左右方向の軸心回りに回転自在に支持される駆動輪（１３）を備え、この駆動輪（１３）を走行車輌（１）の車軸（５）によって回転駆動することにより、前記駆動輪（１３），前後アイドラ（１０，１１）及び転輪（１２）にわたって巻き掛けられたクローラベルト（１４）が循環回走されるように構成されたクローラ式走行装置であって、
前記揺動フレーム（９）は、前後のアイドラ（１０，１１）を支持する前後のアイドラ支持部（２４，２５）を備え且つ転輪（１２）が取り付けられるメインフレーム（２６）と、このメインフレーム（２６）の上方側に配置された前記揺動軸（２７）と、この揺動軸（２７）と前アイドラ支持部（２４）とを連結する前連結部材（２８）と、揺動軸（２７）と後アイドラ支持部（２５）とを連結する後連結部材（２９）とを備えてなり、前後の連結部材（２８，２９）とメインフレーム（２６）との間が左右方向に開口状とされていることを特徴とするクローラ式走行装置。 A swing frame (9) supported by a frame support (8) fixed to the vehicle body (1A) side of the traveling vehicle (1) through a swing shaft (27) so as to be swingable about a horizontal axis. ), And the swing frame (9) supports the front and rear idlers (10, 11) and a plurality of wheels (12) disposed between the front and rear idlers (10, 11). ) And a drive wheel (13) supported on the vehicle body (1A) so as to be rotatable about an axis in the left-right direction. The drive wheel (13) is an axle of the traveling vehicle (1). The crawler belt (14) wound around the drive wheels (13), the front and rear idlers (10, 11) and the wheels (12) is circulated and rotated by being rotationally driven by (5). Crawler type traveling device,
The swing frame (9) includes front and rear idler support portions (24, 25) for supporting the front and rear idlers (10, 11), and a main frame (26) to which the wheel (12) is attached, and the main frame (26). The swing shaft (27) disposed above the frame (26), a front connecting member (28) for connecting the swing shaft (27) and the front idler support portion (24), and a swing shaft (27) and a rear connection member (29) for connecting the rear idler support portion (25), and the space between the front and rear connection members (28, 29) and the main frame (26) opens in the left-right direction. A crawler type travel device characterized by being made into a shape. 揺動フレーム（９）は、前後の連結部材（２８，２９）の揺動軸（２７）側とメインフレーム（２６）の前後方向中間部とを連結する中間連結部材（３０）を備えていることを特徴とする請求項１に記載のクローラ式走行装置。   The swing frame (9) includes an intermediate connecting member (30) for connecting the swing shaft (27) side of the front and rear connecting members (28, 29) and the intermediate portion in the front-rear direction of the main frame (26). The crawler type traveling device according to claim 1. 前後の連結部材（２８，２９）がパイプ材によって構成され、前連結部材（２８）は揺動軸（２７）から前アイドラ支持部（２４）に向けて前下がり傾斜状とされ、後連結部材（２９）は揺動軸（２７）から後アイドラ支持部（２５）に向けて後下がり傾斜状とされていることを特徴とする請求項１又は２に記載のクローラ式走行装置。   The front and rear connecting members (28, 29) are formed of a pipe material, and the front connecting member (28) is inclined forwardly downward from the swing shaft (27) toward the front idler support portion (24). The crawler type traveling device according to claim 1 or 2, wherein (29) is inclined downwardly from the swing shaft (27) toward the rear idler support portion (25).
JP2007009244A 2007-01-18 2007-01-18 Crawler type traveling device Active JP4597147B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2007009244A JP4597147B2 (en) 2007-01-18 2007-01-18 Crawler type traveling device
KR1020070088867A KR100901907B1 (en) 2007-01-18 2007-09-03 Traveling apparatus for crawler
MYPI20071482A MY155304A (en) 2007-01-18 2007-09-04 Crawler apparatus
MYPI20115794 MY152809A (en) 2007-01-18 2007-09-04 Crawler apparatus
CN2007101629129A CN101224763B (en) 2007-01-18 2007-09-27 Crawler type running device
KR1020090000591A KR100945110B1 (en) 2007-01-18 2009-01-06 Traveling apparatus for crawler

Applications Claiming Priority (1)

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JP2007009244A JP4597147B2 (en) 2007-01-18 2007-01-18 Crawler type traveling device

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CN104369722A (en) * 2014-11-11 2015-02-25 泉州市永茂电子科技有限公司 Traveling device for cleaning machine for roof of high-speed train
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JP5951452B2 (en) * 2012-11-14 2016-07-13 株式会社クボタ Crawler travel device
GB2522474A (en) * 2014-01-28 2015-07-29 Caterpillar Inc Idler assembly for a track roller frame
CN108994814A (en) * 2018-09-07 2018-12-14 浙江树人学院 It is a kind of to adapt to complicated ground anthropomorphic robot mobile device

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
US10384732B2 (en) 2011-08-31 2019-08-20 Prinoth Ltd. Tracked vehicle
CN104369722A (en) * 2014-11-11 2015-02-25 泉州市永茂电子科技有限公司 Traveling device for cleaning machine for roof of high-speed train

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