JP2003137145A - Axle extension adapter - Google Patents
Axle extension adapterInfo
- Publication number
- JP2003137145A JP2003137145A JP2001338287A JP2001338287A JP2003137145A JP 2003137145 A JP2003137145 A JP 2003137145A JP 2001338287 A JP2001338287 A JP 2001338287A JP 2001338287 A JP2001338287 A JP 2001338287A JP 2003137145 A JP2003137145 A JP 2003137145A
- Authority
- JP
- Japan
- Prior art keywords
- axle
- adapter
- axle member
- car body
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、作業機の安定性を
向上させるために用いるアクスル延長アダプタに関する
ものである。
【０００２】
【従来の技術】図７乃至図１１は移動式クレーンなどの
作業機の走行装置の一例であり、この走行装置は、カー
ボディ１と、左右一対のクローラフレーム２とを備えて
いる。
【０００３】カーボディ１は、キャブや機械室を有する
上部旋回体（図示せず）を支持する旋回台３と、該旋回
台３の左右両側の前端部及び後端部から作業機の外方へ
互いに平行に突出するアクスル部材４とで構成されてい
る。
【０００４】クローラフレーム２は、作業機の前後方向
に延びる中空構造のフレーム本体５と、該フレーム本体
５の後端部（図７のＡ側）に枢支され且つ油圧モータ
（図示せず）によって駆動されるスプロケット６と、フ
レーム本体５の前端部（図７のＢ側）に枢支したアイド
ラホィール７と、フレーム本体５の下辺に枢支した複数
の下部ローラ８、並びにフレーム本体５の上辺に枢支し
た複数の上部ローラ９と、これらのスプロケット６，下
部ローラ８，アイドラホィール７，上部ローラ９に巻き
掛けた無端状のクローラシュー１０とで構成されてお
り、油圧モータが作動すると、スプロケット６によって
送出されるクローラシュー１０が、上部ローラ９，アイ
ドラホィール７，下部ローラ８に案内されて周回するよ
うになっている。
【０００５】このクローラフレーム２は、カーボディ１
の左右に取り付けられている。
【０００６】フレーム本体５の前後方向中間部分には、
左右方向に貫通し且つアクスル部材４に摺動可能に外接
する中空構造のアクスルボックス１１が、２つずつ設け
られている。
【０００７】旋回台３の下側には、シリンダ１２が配置
されている。
【０００８】このシリンダ１２は、ハウジングがカーボ
ディ１に連結され、また、ピストンロッドがフレーム本
体５に連結されており、当該シリンダ１２を拡縮させる
ことにより、左右のクローラフレーム２の間隔を調整で
きるようになっている。
【０００９】更に、アクスル部材４の先端部には、アク
スル延長アダプタが装着できるようになっている。
【００１０】アクスル延長アダプタは、図１０及び図１
１に示すように、アクスル部材４の端面に４本のボルト
１３で締結される基板１４と、該基板１４の下辺に溶接
固着され且つアクスルボックス１１内底面に当接し得る
摺動板１５と、該摺動板１５の上面、及び基板１４の反
アクスル部材側の面の双方に溶接固着した補強材１６と
を有している。
【００１１】このアクスル延長アダプタを、各アクスル
部材４の端面に装着したうえ、左右のクローラフレーム
２の間隔を、摺動板１５にアクスルボックス１１の内底
面が当接するように拡げれば、作業機の安定性の向上が
図られる。
【００１２】
【発明が解決しようとする課題】ところが、上述した従
来のアクスル延長アダプタでは、その着脱に際し、多数
のボルト１３を締結する作業や、当該ボルト１３の締結
を解除する作業が必要となるため、左右のクローラフレ
ーム２の間隔を直に調整することができなかった。
【００１３】また、アクスル延長アダプタを取り付けた
ままにしておくと、カーボディ１の最大寸法が過大とな
って輸送に制限が生じてしまう。
【００１４】本発明は上述した実情に鑑みてなしたもの
で、着脱作業が容易なアクスル延長アダプタを提供する
ことを目的としている。
【００１５】
【課題を解決するための手段】上記目的を達成するた
め、本発明のアクスル延長アダプタでは、カーボディの
アクスル部材の先端部にカーボディ外方側から中心側へ
向かって挿入可能なアダプタ本体と、カーボディの前後
方向に延び且つアクスル部材及びアダプタ本体を貫通可
能なピンと、アクスル部材の先端上縁部にカーボディ外
方側から当接し得るようにアダプタ本体に固着した押圧
部材と、アクスル部材に外接するクローラフレームのア
クスルボックスの内底面に当接し得るようにアダプタ本
体に固着した摺動板とを備えている。
【００１６】本発明のアクスル延長アダプタにおいて
は、アクスル部材及びアダプタ本体にピンを貫通させ
て、アクスルボックスに当接すべき摺動板をアクスル部
材に拘束し、当該ピンをアクスル部材及びアダプタ本体
から引き抜いて、アクスル部材に対する摺動板の拘束を
解除する。
【００１７】また、クローラフレームが地面から受ける
反力を、ピン及び押圧部材によってアクスル部材に伝達
する。
【００１８】
【発明の実施の形態】以下、本発明の実施の形態を、図
示例とともに説明する。
【００１９】図１乃至図６は本発明のアクスル延長アダ
プタの実施の形態の一例であり、図中、図７乃至図９と
同一の符号を付した部分は同一物を表している。
【００２０】このアクスル延長アダプタは、各アクスル
部材４先端部の腹板部材４ａの下縁寄り部分をカーボデ
ィ１の前後方向に貫通し得るピン１８と、アクスル部材
４の先端部にカーボディ１外方側から中心側へ向かって
挿入可能で且つ前記のピン１８に枢支されるアダプタ本
体１７と、該アダプタ本体１７に固着した押圧部材１
９、並びに摺動板２０とを備えている。
【００２１】アダプタ本体１７は、カーボディ１前後方
向に並んで配置され且つカーボディ１前後方向に見て略
三角形状を呈する２枚の垂直部材２１と、前後の両垂直
部材２１の下辺に溶接固着した水平部材２２と、前後の
両垂直部材２１間に介在してその対峙面に溶接固着した
補剛部材２３とで構成されている。
【００２２】垂直部材２１のアクスル部材４寄りの部分
には、前記のピン１８が挿通可能なピン孔２４が穿設さ
れ、また、前後の垂直部材２１間には、ピン孔２４と同
軸の透孔２５を有する中空部材２６が介在している。
【００２３】更に、各垂直部材２１の反中空部材側の面
には、ピン孔２４と同軸に位置するように当て座金２１
ａが固着され、アクスル部材４に対する嵌合及び摺動が
配慮されている。
【００２４】水平部材２２は、アダプタ本体１７をアク
スル部材４に装着したときに、そのアクスル部材４側端
面が、アクスル部材４の先端下縁部に当接する。
【００２５】押圧部材１９は、垂直部材２１頂部に溶接
固着されており、アダプタ本体１７をアクスル部材４に
装着したときに、アクスル部材４の先端上縁部に当接す
るようになっている。
【００２６】摺動板２０は、アダプタ本体１７の水平部
材２２下面に溶接固着されており、アクスル部材４にク
ローラフレーム２のアクスルボックス１１を外接させた
ときに、その内底面に当接するようになっている。
【００２７】この摺動板２０の平面形状は、長手方向中
間部から先端（反アクスル部材側）に向かって幅が徐々
に狭まり、先端が半円状になっている。
【００２８】アクスル延長アダプタをアクスル部材４に
取り付けるときには、垂直部材２１のピン孔２４寄り部
分がカーボディ１中心側を向くようにしたアダプタ本体
１７を、アクスル部材４の先端部に挿入し、アクスル部
材４及びアダプタ本体１７のピン孔２４にピン１８を挿
通する。
【００２９】次いで、シリンダ１２を伸張させて左右の
クローラフレーム２の間隔を拡げると、アクスルボック
ス１１内底面にアダプタ本体１７の摺動板２０が当接す
る。
【００３０】これにより、クローラフレーム２が地面か
ら受ける反力を、アダプタ本体１７の押圧部材１９及び
ピン１８を介してアクスル部材４に伝達する。
【００３１】アクスル延長アダプタをアクスル部材４か
ら取り外すときには、シリンダ１２を縮小して左右のク
ローラフレーム２の間隔を狭めたうえ、ピン１８をアク
スル部材４及びアダプタ本体１７から引き抜いて、アク
スル部材４に対するアダプタ本体１７の拘束を解除す
る。
【００３２】このように、図１乃至図６に示すアクスル
延長アダプタおいては、アクスル延長アダプタの着脱
を、１本のピン１８の抜き差しによって容易に行なうこ
とができる。
【００３３】また、クローラフレーム２が受ける反力
を、押圧部材１９とピン１８を介してアクスル部材４に
伝達するので、単純な構造で大きな剛性を得ることがで
きる。
【００３４】更に、アダプタ本体１７の摺動板２０を先
端に向かって幅が漸減する先細形状に形成したので、ク
ローラフレーム２が地面から受ける反力による摺動板２
０の圧力分布の平均化を図ることができる。
【００３５】なお、本発明のアクスル延長アダプタは上
述した実施の形態のみに限定されるものではなく、本発
明の要旨を逸脱しない範囲内において種々変更を加え得
ることは勿論である。
【００３６】
【発明の効果】以上述べたように、本発明のアクスル延
長アダプタによれば、下記のような種々の優れた効果を
奏し得る。
【００３７】（１）アクスル部材及びアダプタ本体にピ
ンを貫通させて、アクスルボックスに当接すべき摺動板
をアクスル部材に拘束し、当該ピンをアクスル部材及び
アダプタ本体から引き抜いて、アクスル部材に対する摺
動板の拘束を解除するので、アダプタ本体の脱着を１本
のピンの抜き差しによって容易に行なうことができる。
【００３８】（２）クローラフレームが地面から受ける
反力を、ピン及び押圧部材によってアクスル部材に伝達
するので、単純な構造で大きな剛性を得ることができ
る。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an axle extension adapter used for improving the stability of a working machine. 2. Description of the Related Art FIGS. 7 to 11 show an example of a traveling device of a working machine such as a mobile crane. The traveling device includes a car body 1 and a pair of left and right crawler frames 2. . A car body 1 includes a swivel 3 for supporting an upper revolving structure (not shown) having a cab and a machine room, and a front end and a rear end on both left and right sides of the swivel 3 to move the car body 1 outward from the working machine. And an axle member 4 projecting in parallel to each other. The crawler frame 2 has a hollow frame main body 5 extending in the front-rear direction of the working machine, and a hydraulic motor (not shown) pivotally supported by a rear end (A side in FIG. 7) of the frame main body 5. 6, an idler wheel 7 pivotally supported on the front end portion (B side in FIG. 7) of the frame body 5, a plurality of lower rollers 8 pivotally supported on the lower side of the frame body 5, and It is composed of a plurality of upper rollers 9 pivotally supported on the upper side, an endless crawler shoe 10 wound around these sprockets 6, a lower roller 8, an idler wheel 7, and an upper roller 9, and when a hydraulic motor operates. The crawler shoe 10 sent out by the sprocket 6 is guided by the upper roller 9, the idler wheel 7, and the lower roller 8 to orbit. [0005] The crawler frame 2 comprises a car body 1
It is attached to the left and right of. In the middle part of the frame body 5 in the front-rear direction,
Two axle boxes 11 each having a hollow structure penetrating in the left-right direction and slidably circumscribing the axle member 4 are provided. [0007] A cylinder 12 is arranged below the swivel 3. The cylinder 12 has a housing connected to the car body 1 and a piston rod connected to the frame body 5. By expanding and contracting the cylinder 12, the distance between the left and right crawler frames 2 can be adjusted. It has become. Further, an axle extension adapter can be attached to the tip of the axle member 4. The axle extension adapter is shown in FIGS.
As shown in FIG. 1, a board 14 fastened to the end face of the axle member 4 by four bolts 13, a sliding plate 15 welded and fixed to the lower side of the board 14 and capable of abutting the inner bottom face of the axle box 11, A reinforcing member 16 is welded and fixed to both the upper surface of the sliding plate 15 and the surface of the substrate 14 on the side opposite to the axle member. If this axle extension adapter is mounted on the end surface of each axle member 4 and the distance between the left and right crawler frames 2 is increased so that the inner bottom surface of the axle box 11 abuts on the sliding plate 15, the work can be performed. The stability of the machine is improved. [0012] However, in the conventional axle extension adapter described above, when attaching and detaching the axle extension adapter, it is necessary to perform an operation of fastening a large number of bolts 13 and an operation of releasing the fastening of the bolts 13. Therefore, the distance between the left and right crawler frames 2 cannot be adjusted directly. Further, if the axle extension adapter is left attached, the maximum size of the car body 1 becomes excessively large, which limits transportation. The present invention has been made in view of the above circumstances, and has as its object to provide an axle extension adapter that can be easily attached and detached. [0015] In order to achieve the above object, in the axle extension adapter of the present invention, the axle member of the car body can be inserted into the front end portion of the axle member from the outside of the car body toward the center. An adapter body, a pin extending in the front-rear direction of the car body and capable of penetrating the axle member and the adapter body, and a pressing member fixed to the adapter body so as to be able to abut on the upper edge of the axle member from the outside of the car body. A sliding plate fixed to the adapter body so as to be able to contact the inner bottom surface of the axle box of the crawler frame that circumscribes the axle member. In the axle extension adapter of the present invention, a pin is penetrated through the axle member and the adapter body, the sliding plate to be brought into contact with the axle box is restrained by the axle member, and the pin is moved from the axle member and the adapter body. Pull out to release the constraint of the sliding plate on the axle member. Further, the reaction force received from the ground by the crawler frame is transmitted to the axle member by the pin and the pressing member. Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 6 show an embodiment of an axle extension adapter according to the present invention. In the drawings, the same reference numerals as those in FIGS. 7 to 9 denote the same parts. The axle extension adapter includes a pin 18 that can penetrate the lower edge of the abdominal plate member 4a at the tip of each axle member 4 in the front-rear direction of the car body 1, and a car body 1 at the tip of the axle member 4. An adapter body 17 which can be inserted from the outside toward the center and is pivotally supported by the pin 18; and a pressing member 1 fixed to the adapter body 17
9 and a sliding plate 20. The adapter body 17 is provided with two vertical members 21 which are arranged side by side in the front-rear direction of the car body 1 and have a substantially triangular shape when viewed in the front-rear direction of the car body 1, and are welded to lower sides of the front and rear vertical members 21. It is composed of a fixed horizontal member 22 and a stiffening member 23 interposed between the front and rear vertical members 21 and fixed to the opposing surface by welding. A pin hole 24 through which the pin 18 can be inserted is formed in a portion of the vertical member 21 near the axle member 4, and a transparent hole coaxial with the pin hole 24 is provided between the front and rear vertical members 21. A hollow member 26 having a hole 25 is interposed. Further, a contact washer 21 is provided on the surface of each vertical member 21 on the side opposite to the hollow member so as to be coaxial with the pin hole 24.
a is fixed, and fitting and sliding with the axle member 4 are considered. When the adapter body 17 is mounted on the axle member 4, the end surface of the horizontal member 22 on the side of the axle member 4 abuts on the lower edge of the tip of the axle member 4. The pressing member 19 is welded and fixed to the top of the vertical member 21 so that when the adapter body 17 is mounted on the axle member 4, the pressing member 19 comes into contact with the upper edge of the tip of the axle member 4. The sliding plate 20 is fixed to the lower surface of the horizontal member 22 of the adapter body 17 by welding so that when the axle box 11 of the crawler frame 2 is circumscribed to the axle member 4, it contacts the inner bottom surface thereof. Has become. The planar shape of the sliding plate 20 is such that the width gradually decreases from the middle portion in the longitudinal direction toward the tip (the side opposite to the axle member), and the tip is semicircular. When attaching the axle extension adapter to the axle member 4, the adapter body 17 with the portion of the vertical member 21 near the pin hole 24 facing the center of the car body 1 is inserted into the tip of the axle member 4, and The pin 18 is inserted through the member 4 and the pin hole 24 of the adapter body 17. Next, when the distance between the left and right crawler frames 2 is increased by extending the cylinder 12, the sliding plate 20 of the adapter body 17 comes into contact with the inner bottom surface of the axle box 11. Thus, the reaction force that the crawler frame 2 receives from the ground is transmitted to the axle member 4 via the pressing member 19 and the pin 18 of the adapter body 17. When removing the axle extension adapter from the axle member 4, the cylinder 12 is reduced to reduce the distance between the left and right crawler frames 2, and the pin 18 is pulled out from the axle member 4 and the adapter body 17. Release the constraint on the adapter body 17. As described above, in the axle extension adapter shown in FIGS. 1 to 6, attachment and detachment of the axle extension adapter can be easily performed by inserting and removing one pin 18. Since the reaction force received by the crawler frame 2 is transmitted to the axle member 4 via the pressing member 19 and the pin 18, a large rigidity can be obtained with a simple structure. Further, since the sliding plate 20 of the adapter body 17 is formed in a tapered shape whose width gradually decreases toward the distal end, the sliding plate 2 is formed by the reaction force that the crawler frame 2 receives from the ground.
The pressure distribution of 0 can be averaged. It should be noted that the axle extension adapter of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the spirit of the present invention. As described above, according to the axle extension adapter of the present invention, the following various excellent effects can be obtained. (1) A pin is penetrated through the axle member and the adapter body, the sliding plate to be brought into contact with the axle box is restrained by the axle member, and the pin is pulled out from the axle member and the adapter body. Since the constraint of the sliding plate is released, the attachment and detachment of the adapter body can be easily performed by inserting and removing one pin. (2) Since the reaction force received from the ground by the crawler frame is transmitted to the axle member by the pin and the pressing member, a large rigidity can be obtained with a simple structure.
【図面の簡単な説明】
【図１】本発明のアクスル延長アダプタの実施の形態の
一例を装着した作業機の走行装置を示す平面図である。
【図２】図１のＩＩ−ＩＩ矢視図である。
【図３】図２に関連するアクスル延長アダプタを示す側
面図である。
【図４】図３のＩＶ−ＩＶ矢視図である。
【図５】図３のＶ−Ｖ矢視図である。
【図６】図２のＶＩ−ＶＩ矢視図である。
【図７】従来の作業機の走行装置の一例を示す平面図で
ある。
【図８】図７のＶＩＩＩ−ＶＩＩＩ矢視図である。
【図９】図７のＩＸ−ＩＸ矢視図である。
【図１０】図９のＡ部分の拡大図である。
【図１１】図１０のＸＩ−ＸＩ矢視図である。
【符号の説明】
１ カーボディ
２ クローラフレーム
４ アクスル部材
１１ アクスルボックス
１７ アダプタ本体
１８ ピン
１９ 押圧部材
２０ 摺動板BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing a traveling device of a working machine to which an example of an embodiment of an axle extension adapter according to the present invention is attached. FIG. 2 is a view taken in the direction of arrows II-II in FIG. FIG. 3 is a side view showing the axle extension adapter associated with FIG. 2; FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 3; FIG. 5 is a view taken in the direction of arrows VV in FIG. 3; FIG. 6 is a view taken in the direction of arrows VI-VI in FIG. 2; FIG. 7 is a plan view showing an example of a traveling device of a conventional working machine. 8 is a view taken in the direction of arrows VIII-VIII in FIG. 7; FIG. 9 is a view taken along the line IX-IX in FIG. 7; FIG. 10 is an enlarged view of a portion A in FIG. 9; 11 is a view as viewed in the direction of arrows XI-XI in FIG. 10; [Description of Signs] 1 Car body 2 Crawler frame 4 Axle member 11 Axle box 17 Adapter body 18 Pin 19 Pressing member 20 Sliding plate
Claims (1)
ーボディ外方側から中心側へ向かって挿入可能なアダプ
タ本体と、カーボディの前後方向に延び且つアクスル部
材及びアダプタ本体を貫通可能なピンと、アクスル部材
の先端上縁部にカーボディ外方側から当接し得るように
アダプタ本体に固着した押圧部材と、アクスル部材に外
接するクローラフレームのアクスルボックスの内底面に
当接し得るようにアダプタ本体に固着した摺動板とを備
えてなることを特徴とするアクスル延長アダプタ。Claims: 1. An adapter body insertable from the outside of the car body to the center of the axle member of the car body, the axle member and the adapter extending in the front-rear direction of the car body. A pin that can penetrate the main body, a pressing member fixed to the adapter body so that the upper edge of the axle member can come into contact with the outer side of the car body, and an inner bottom surface of the axle box of the crawler frame that circumscribes the axle member. An axle extension adapter, comprising: a sliding plate fixed to an adapter body so as to be in contact with the adapter body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001338287A JP4030296B2 (en) | 2001-11-02 | 2001-11-02 | Axle extension adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001338287A JP4030296B2 (en) | 2001-11-02 | 2001-11-02 | Axle extension adapter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003137145A true JP2003137145A (en) | 2003-05-14 |
| JP4030296B2 JP4030296B2 (en) | 2008-01-09 |
Family
ID=19152805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001338287A Expired - Fee Related JP4030296B2 (en) | 2001-11-02 | 2001-11-02 | Axle extension adapter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4030296B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012148626A (en) * | 2011-01-18 | 2012-08-09 | Kobelco Cranes Co Ltd | Car body structure of crawler construction machine |
| JP2019196092A (en) * | 2018-05-09 | 2019-11-14 | コベルコ建機株式会社 | Undercarriage for construction machine |
-
2001
- 2001-11-02 JP JP2001338287A patent/JP4030296B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012148626A (en) * | 2011-01-18 | 2012-08-09 | Kobelco Cranes Co Ltd | Car body structure of crawler construction machine |
| JP2019196092A (en) * | 2018-05-09 | 2019-11-14 | コベルコ建機株式会社 | Undercarriage for construction machine |
| JP7087651B2 (en) | 2018-05-09 | 2022-06-21 | コベルコ建機株式会社 | Running body of construction machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4030296B2 (en) | 2008-01-09 |
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