JPH0715829Y2 - Crawler traveling device - Google Patents
Crawler traveling deviceInfo
- Publication number
- JPH0715829Y2 JPH0715829Y2 JP1988151917U JP15191788U JPH0715829Y2 JP H0715829 Y2 JPH0715829 Y2 JP H0715829Y2 JP 1988151917 U JP1988151917 U JP 1988151917U JP 15191788 U JP15191788 U JP 15191788U JP H0715829 Y2 JPH0715829 Y2 JP H0715829Y2
- Authority
- JP
- Japan
- Prior art keywords
- crawler
- frame
- crawler belt
- wheel
- crawler frame
- 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.)
- Expired - Lifetime
Links
Landscapes
- Harvester Elements (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
- Tires In General (AREA)
Description
【考案の詳細な説明】 （イ）産業上の利用分野 本考案は、ゴム履帯を用いる履帯走行装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a crawler track traveling device using a rubber crawler track.
（ロ）従来の技術 ゴム履帯による履帯走行装置が、不整地を走行し、しか
も重量物を積載して走行する作業車両の走行装置として
実施される場合には、巻回履帯の内側上部に上部ローラ
を設置して履帯を支え誘導するように構成されるのであ
るが、その具体的な構造は、第１図において中心線から
左側に図示する構造となっていた。(B) Conventional technology When a crawler track traveling device using rubber tracks is implemented as a traveling device for a work vehicle that travels on rough terrain and also carries heavy objects, the upper part is placed inside the winding track. A roller is installed to support and guide the crawler belt, and the specific structure thereof is the structure shown on the left side of the center line in FIG.
（ハ）考案が解決しようとする課題 従来の上部ローラ構造では、第１図の左側から明らかで
あるように、クローラフレームと上部ローラとの間の隙
間が狭いため、特に、不整地等のぬかるみにおいては、
狭い隙間に土砂が詰まって上部ローラの回転不良を起生
し、引いては、旋回時にゴム履帯が横側方にスライドし
て遊動輪から外れ易くなり、また、上部ローラのホイル
部と外輪部間の角でゴム履帯内面の段付部を切損した
り、偏磨耗させたりするという問題があった。(C) Problems to be Solved by the Invention In the conventional upper roller structure, as is apparent from the left side of FIG. 1, the gap between the crawler frame and the upper roller is narrow, so that muddy areas such as uneven terrain can be especially noticed. In
Sediment is clogged in the narrow gap, which causes rotation failure of the upper roller, and when pulled, the rubber crawler slides laterally sideways during turning, making it easier to disengage from the idler wheel. There is a problem in that the stepped portion on the inner surface of the rubber crawler is cut off at the corners between the corners, and is unevenly worn.
（ニ）課題を解決するための手段 すなわち、本考案は、ゴム履帯をクローラフレームの前
後端に配設した駆動輪と遊動輪との外周に巻回し、クロ
ーラフレームの下面に複数の下部ローラを軸支し、同フ
レームの上面に固着した支持軸の両側に上部ローラを軸
支して履帯走行装置を構成し、クローラフレームの周囲
に巻回した上記ゴム履帯の内側にクローラフレームを位
置せしめて、ゴム履帯内面のクローラフレームよりも外
方の部位に基部の内角に丸みを持たせた段付部を形成す
ると共に、上部ローラを上記支持軸に外嵌したボス部に
連なるホイル部とその外周に形成した外輪部とで形成
し、しかも、ホイル部と外輪部との間に、前記段付部の
丸みに符合する丸みを有する隅角部を介在させ、この隅
角部が上記ゴム履帯の段付部の外側から当接することを
特徴とするものである。(D) Means for Solving the Problem That is, in the present invention, a rubber crawler belt is wound around the outer periphery of a drive wheel and an idler wheel arranged at the front and rear ends of a crawler frame, and a plurality of lower rollers are provided on the lower surface of the crawler frame. A crawler belt traveling device is constructed by pivotally supporting upper rollers on both sides of a support shaft fixed to the upper surface of the frame, and the crawler frame is positioned inside the rubber crawler belt wound around the crawler frame. A stepped portion with a rounded inner corner of the base is formed on the inner side of the rubber crawler belt outside the crawler frame, and the wheel portion connected to the boss portion externally fitted to the support shaft and its outer periphery are formed. And an outer ring portion formed on the outer ring portion, and a corner portion having a roundness corresponding to the roundness of the stepped portion is interposed between the wheel portion and the outer ring portion, and this corner portion of the rubber crawler belt is formed. From the outside of the step It is characterized by contact.
（ホ）作用・効果 本考案は、次のような作用・効果を有するものである。(E) Operation / effect The present invention has the following operation / effect.
クローラフレームの周囲に巻回した上記ゴム履帯の内
側にクローラフレームを位置せしめたことで、クローラ
フレームと地面の障害物との干渉を回避することがで
き、走行性能を良くすることができる。By positioning the crawler frame inside the rubber crawler belt wound around the crawler frame, it is possible to avoid interference between the crawler frame and obstacles on the ground and improve running performance.
ゴム履帯内面のクローラフレームよりも外方の部位に
基部の内角に丸みを持たせた段付部を形成し、同段付部
に外側から上部ローラの隅角部を当接させることによっ
て、上部ローラがゴム履帯を支持する横幅を広くとるこ
とができ、走行中のゴム履帯の横振れを防止して、履帯
外れを防止することができる。By forming a stepped part with a rounded inner corner of the base at a site outside the crawler frame on the inner surface of the rubber crawler, and contacting the corner part of the upper roller from the outside with the stepped part, The roller can have a wide lateral width for supporting the rubber crawler belt, and can prevent lateral wobbling of the rubber crawler belt during traveling to prevent the crawler belt from coming off.
上記ローラが、クローラフレームの上面に横方向に固
着した支持軸の両側に軸支されているので、左右の上部
ローラ間にクローラフレームの横幅より広い間隔が生
じ、この間隔からゴム履帯の内面に付着した土砂を排出
することができ、上部ローラ回転の円滑を保持すると共
に、ゴム履帯と上部ローラ間の土砂の堆積による浮上が
りがなくなり履帯外れを防止することができる。Since the rollers are axially supported on both sides of the support shaft laterally fixed to the upper surface of the crawler frame, a space wider than the lateral width of the crawler frame is generated between the left and right upper rollers, and from this space to the inner surface of the rubber crawler track. The adhered earth and sand can be discharged, smooth rotation of the upper roller can be maintained, and lifting due to sedimentation of the earth and sand between the rubber crawler belt and the upper roller can be prevented to prevent the track from coming off.
ゴム履帯内面の段付部の基部内角に丸みを持たせ、こ
の丸みに符合する丸みを上部ローラの隅角部に形成した
ことから、段付部と隅角部との間の荷重の集中が発生せ
ず、段付部の偏磨耗や角部による切損を防止することが
できる。By rounding the inner corner of the base of the stepped portion of the rubber crawler belt and forming a roundness that matches this roundness in the corner portion of the upper roller, the concentration of load between the stepped portion and the corner portion can be prevented. It does not occur, and it is possible to prevent uneven wear of the stepped portion and cutting damage due to the corner portion.
（ヘ）実施例 つぎに、本考案の実施例について図面を参照して説明す
る。(F) Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.
第２図において、Ａは作業車両であって、エンジン（図
示せず）の駆動力を変速機Ｍを介して履帯走行装置の駆
動輪２に伝達し、駆動輪２と遊動輪３とに巻回したゴム
履帯１を回動させて走行するものとなっている。In FIG. 2, A is a work vehicle, which transmits a driving force of an engine (not shown) to a drive wheel 2 of a crawler track traveling device via a transmission M and winds the drive wheel 2 and an idler wheel 3 together. The rotated rubber crawler belt 1 is rotated to travel.
履帯走行装置の上方には、操縦席Ｂと、操作レバーＣを
備えた前部機枠と、後部機枠が装設され、後部機枠は、
クローラフレーム７から連設された機枠の上部に載置さ
れ、シリンダCLによって起伏するように装設された荷台
Ｗを備えている。Above the crawler track traveling device, a cockpit B, a front machine frame provided with an operation lever C, and a rear machine frame are installed, and the rear machine frame is
A loading platform W is mounted on the upper part of a machine frame connected from the crawler frame 7 and is erected by a cylinder CL.
つぎに、履帯走行装置について詳細に説明する。Next, the crawler belt traveling device will be described in detail.
履帯走行装置は、クローラフレーム７の前端に駆動輪２
であるスプロケットを装着し、クローラフレーム７の後
端に遊動輪３を装着し、クローラフレーム７の下面に複
数の下部ローラ４を枢支ピン８を支点として上下に揺動
自在に枢支してゴム履帯１の接地追従性を良くし、クロ
ーラフレーム７の上面に横方向に固設した支持軸10を介
して上部ローラ５を軸支し、このようにクローラフレー
ム７の周囲に配設された駆動輪２、遊動輪３、下部ロー
ラ４及び上部ローラ５の外周にゴム履帯１を巻回して履
帯走行装置を構成している。The crawler track traveling device has a drive wheel 2 at the front end of the crawler frame 7.
The sprocket is attached, the idler wheel 3 is attached to the rear end of the crawler frame 7, and a plurality of lower rollers 4 are pivotally supported on the lower surface of the crawler frame 7 so as to be vertically swingable with a pivot pin 8 as a fulcrum. The trackability of the rubber crawler belt 1 is improved, and the upper roller 5 is rotatably supported by the support shaft 10 fixed laterally on the upper surface of the crawler frame 7, and is disposed around the crawler frame 7 in this manner. A rubber crawler belt 1 is wound around the outer periphery of the drive wheel 2, the idler wheel 3, the lower roller 4, and the upper roller 5 to form a crawler belt traveling device.
ゴム履帯１は、第１図の右側で示すように、クローラフ
レーム７の周囲に巻回した上記ゴム履帯１の内側にクロ
ーラフレーム７を位置せしめて、ゴム履帯１内面のクロ
ーラフレーム７よりも外方の部位に基部の内角に丸みを
持たせた段付部６を形成している。As shown on the right side of FIG. 1, the rubber crawler belt 1 is positioned outside the crawler frame 7 on the inner surface of the rubber crawler belt 1 by positioning the crawler frame 7 inside the rubber crawler belt 1 wound around the crawler frame 7. A stepped portion 6 having a rounded inner corner of the base portion is formed at that portion.
上部ローラ５は、第１図の右側で示すように、上記クロ
ーラフレーム７の上面に固着した間座９に取付ボルト11
を介して固設した支持軸10に軸支されており、同上部ロ
ーラ５は、上記支持軸10の左右側に軸受12を介し回動自
在に外嵌したボス部14に連なるホイル部Ｔとその外周に
形成した外輪部21とで形成され、しかも、ホイル部Ｔを
外輪部21との間に、前記段付部６の丸みに符合する丸み
を有する隅角部22を介在させ、この隅角部22が上記ゴム
履帯１の段付部６に外側から当接するようにしている。As shown on the right side of FIG. 1, the upper roller 5 is attached with a mounting bolt 11 to a spacer 9 fixed to the upper surface of the crawler frame 7.
The upper roller 5 is axially supported by a support shaft 10 fixed via a wheel portion T connected to the boss portion 14 rotatably fitted on the left and right sides of the support shaft 10 via bearings 12. A corner portion 22 having a roundness corresponding to the roundness of the stepped portion 6 is formed between the outer ring portion 21 and the outer ring portion 21 formed on the outer periphery of the wheel portion T. The corner portion 22 contacts the stepped portion 6 of the rubber crawler belt 1 from the outside.
また、上記ボス部14は止め輪16により抜け止めされてお
り、同ボス部14の内側軸端部をオイルシール13で封ずる
と共に、ボス部14の外側軸端部にキャップ15を嵌装して
いる。Further, the boss portion 14 is prevented from coming off by a retaining ring 16, the inner shaft end portion of the boss portion 14 is sealed with an oil seal 13, and a cap 15 is fitted on the outer shaft end portion of the boss portion 14. ing.
なお、図中、17はゴム履帯１の芯金を示している。In the figure, 17 indicates a core metal of the rubber crawler belt 1.
第１図は、中心線から左側に従来構造を示すと共に、中
心線から右側に本考案構造を示した要部断面図。 第２図は、本考案を適用した作業車両の全体側面図。 １…ゴム履帯 ２…駆動輪 ３…遊動輪 ４…下部ローラ ５…上部ローラ ６…段付部 ７…クローラフレーム 10…支持軸 14…ボス部 21…外輪部 22…隅角部 Ｓ…間隙 Ｔ…ホイル部FIG. 1 is a sectional view showing the conventional structure on the left side of the center line and the structure of the present invention on the right side of the center line. FIG. 2 is an overall side view of a work vehicle to which the present invention is applied. 1 ... Rubber crawler belt 2 ... Drive wheel 3 ... Idler wheel 4 ... Lower roller 5 ... Upper roller 6 ... Stepped portion 7 ... Crawler frame 10 ... Support shaft 14 ... Boss portion 21 ... Outer ring portion 22 ... Corner portion S ... Gap T … Wheel part
Claims (1)
の前後端に配設した駆動輪（２）と遊動輪（３）との外
周に巻回し、クローラフレーム（７）の下面に複数の下
部ローラ（４）を軸支し、同フレーム（７）の上面に固
着した支持軸（10）の両側に上部ローラ（５）を軸支し
て履帯走行装置を構成し、クローラフレーム（７）の周
囲に巻回した上記ゴム履帯（１）の内側にクローラフレ
ーム（７）を位置せしめて、ゴム履帯（１）内面のクロ
ーラフレーム（７）よりも左右幅方向の外方の部位に、
基部の内角に丸みを持たせた段付部（６）を形成すると
共に、上部ローラ（５）を上記支持軸（10）に外嵌した
ボス部（14）に連なるホイル部（Ｔ）とその外周に形成
した外輪部（21）とで形成し、しかも、ホイル部（Ｔ）
と外輪部（21）との間に、前記段付部（６）の丸みに符
合する丸みを有する隅角部（22）を介在させ、この隅角
部（22）が上記ゴム履帯（１）のテーパー状段付部
（６）に外側から当接することを特徴とする履帯走行装
置。1. Rubber crawler track (1) for crawler frame (7)
The drive wheel (2) and the idler wheel (3) arranged at the front and rear ends of the crawler frame are wound around the outer periphery of the crawler frame (7), and a plurality of lower rollers (4) are rotatably supported on the lower surface of the frame (7). The upper roller (5) is pivotally supported on both sides of the support shaft (10) fixed to the upper surface of the crawler frame (7) and the inside of the rubber crawler belt (1) wound around the crawler frame (7). Position the crawler frame (7) and place it on the inner side of the rubber crawler belt (1) outside the crawler frame (7) in the left-right width direction.
A stepped portion (6) having a rounded inner corner of the base portion is formed, and a wheel portion (T) connected to a boss portion (14) externally fitted with the upper roller (5) and the wheel portion (T) It is formed with the outer ring part (21) formed on the outer periphery, and moreover, the wheel part (T)
A corner portion (22) having a roundness matching the roundness of the stepped portion (6) is interposed between the outer ring portion (21) and the outer ring portion (21), and the corner portion (22) is the rubber crawler belt (1). A crawler belt traveling device, which is in contact with the tapered stepped portion (6) from the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988151917U JPH0715829Y2 (en) | 1988-11-21 | 1988-11-21 | Crawler traveling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988151917U JPH0715829Y2 (en) | 1988-11-21 | 1988-11-21 | Crawler traveling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0272189U JPH0272189U (en) | 1990-06-01 |
| JPH0715829Y2 true JPH0715829Y2 (en) | 1995-04-12 |
Family
ID=31426385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988151917U Expired - Lifetime JPH0715829Y2 (en) | 1988-11-21 | 1988-11-21 | Crawler traveling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0715829Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004306958A (en) * | 2004-08-09 | 2004-11-04 | Yanmar Co Ltd | Crawler-type truck |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6021910B2 (en) * | 1980-09-22 | 1985-05-30 | 井関農機株式会社 | Support device for crawler wheels of combine harvesters, etc. |
| JPS6414482U (en) * | 1987-07-14 | 1989-01-25 |
-
1988
- 1988-11-21 JP JP1988151917U patent/JPH0715829Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004306958A (en) * | 2004-08-09 | 2004-11-04 | Yanmar Co Ltd | Crawler-type truck |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0272189U (en) | 1990-06-01 |
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