JPS6318551Y2 - - Google Patents
Info
- Publication number
- JPS6318551Y2 JPS6318551Y2 JP1983053662U JP5366283U JPS6318551Y2 JP S6318551 Y2 JPS6318551 Y2 JP S6318551Y2 JP 1983053662 U JP1983053662 U JP 1983053662U JP 5366283 U JP5366283 U JP 5366283U JP S6318551 Y2 JPS6318551 Y2 JP S6318551Y2
- Authority
- JP
- Japan
- Prior art keywords
- end surface
- support shaft
- boss portion
- support bracket
- outer peripheral
- 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
Links
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Description
【考案の詳細な説明】
本考案は、クローラベルト案内転輪の支持ブラ
ケツトを、トラツクフレームのボス部に回動自在
に支承された支軸に固着して、前記支持ブラケツ
トを揺動自在に構成したクローラ走行装置の枢支
部シール構造に関する。[Detailed description of the invention] The present invention fixes the support bracket of the crawler belt guide roller to a support shaft that is rotatably supported on the boss portion of the track frame, so that the support bracket is configured to be swingable. The present invention relates to a pivot seal structure for a crawler traveling device.
上記クローラ走行装置において、従来、前記支
軸と、この支軸に対するトラツクフレームボス部
との間をシールするのに、これら支軸とボス部の
間にOリングやダストシールを介装されていたが
シール効果が十分に得られなかつた。 In the above-mentioned crawler traveling device, an O-ring or a dust seal has conventionally been inserted between the support shaft and the boss of the track frame to seal the space between the support shaft and the track frame boss for the support shaft. A sufficient sealing effect could not be obtained.
本考案の目的は、信頼性の高いシールが構造簡
単に得られるようにすることにある。 The purpose of the present invention is to provide a highly reliable seal with a simple structure.
本考案の特徴構成は、冒記したクローラ走行装
置の枢支部シール構造において、外周側端面近く
の全周を支軸の軸線方向に屈曲させて皿状に形成
した弾性環状板を、前記ボス部の端面よりも外方
に露出する部位の前記支軸部分に形成した段部と
その段部に対向する前記支持ブラケツトとで挾着
して、前記外周側端面がトラツクフレームボス部
の端面に圧接される弾性変形状態で、前記ボス部
と支持ブラケツトとの間の前記支軸に密着状態で
一体回転自在に取付けた事にある。 The characteristic configuration of the present invention is that in the above-mentioned pivot seal structure of the crawler traveling device, an elastic annular plate formed in a dish shape by bending the entire circumference near the outer peripheral end face in the axial direction of the support shaft is attached to the boss portion. The outer circumferential side end surface is pressed against the end surface of the truck frame boss by being clamped by a stepped portion formed on the support shaft portion at a portion exposed outwardly than the end surface of the support bracket and the support bracket facing the stepped portion. It is attached to the support shaft between the boss portion and the support bracket so as to be able to rotate therewith in close contact with the support shaft in an elastically deformed state.
つまり、支軸とトラツクフレームボス部との間
隙を、環状板で閉塞するので、しかも、環状板を
前記屈曲形状の弾性体製とすると共に、外周側端
面のみがボス部端面に圧接される弾性変形状態で
組付けることにより、支軸回転にかかわらず環状
板がボス部に常に強力に密着するので、支軸とボ
ス部の間に対する泥水等の侵入が確実に防止され
るようにでき、たとえ湿地であつても、転輪がス
ムーズに昇降するようにできた。しかも、前記環
状板を弾性変形状態で組付けるだけの簡単な構造
で済み、経済面で有利にできた。 In other words, since the gap between the support shaft and the truck frame boss is closed by the annular plate, the annular plate is made of an elastic material having the above-mentioned bent shape, and only the outer peripheral end face is pressed against the boss end face. By assembling it in a deformed state, the annular plate will always strongly adhere to the boss regardless of the rotation of the spindle, making it possible to reliably prevent muddy water from entering between the spindle and the boss. The wheels were able to move up and down smoothly even in wetlands. In addition, the structure is simple and requires only assembling the annular plate in an elastically deformed state, which is economically advantageous.
以下に、本考案の実施例を図面に基いて説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.
第1図に示すように、トラツクフレーム1の一
端側にクローラベルト駆動用輪体2を、他端側に
クローラベルト緊張用輪体3を夫々設け、これら
両輪体2,3の間に配置した複数個のクローラベ
ルト下部側第1案内転輪4……、及び1個のクロ
ーラベルト上部側案内転輪5の夫々を、トラツク
フレーム1に遊転自在に取付け、2個のクローラ
ベルト下部側第2案内輪体6,6の夫々を、この
輪体6を遊端側に軸支する支持ブラケツト7によ
り、トラツクフレーム1に揺動昇降自在に取付け
ると共に、ケース8内のスプリング8aにより下
降付勢されるように構成し、そして、全ての前記
輪体2,3,4,5,6にわたつてクローラベル
ト9を巻回し、主としてコンバインに装備される
クローラ走行装置を構成してある。 As shown in FIG. 1, a crawler belt driving wheel 2 is provided at one end of the truck frame 1, and a crawler belt tensioning wheel 3 is provided at the other end, and these wheels are arranged between the two wheels 2 and 3. A plurality of crawler belt lower side first guide rollers 4... and one crawler belt upper side guide roller 5 are respectively attached to the truck frame 1 so as to be freely rotatable, Each of the two guide wheels 6, 6 is attached to the truck frame 1 so as to be able to swing up and down by a support bracket 7 that pivotally supports the wheel 6 on the free end side, and is biased downward by a spring 8a in the case 8. A crawler belt 9 is wound around all the wheels 2, 3, 4, 5, and 6 to form a crawler traveling device that is mainly installed in a combine harvester.
前記支持ブラケツト7の対トラツクフレーム揺
動を可能にするに、第2図に示すように、支持ブ
ラケツト7を両端側に一体回転するように締付け
固定した支軸10を、トラツクフレーム1にボス
部を形成させてある筒体11にブツシユ12を介
して回動自在に取付けてある。 In order to enable the support bracket 7 to swing relative to the truck frame, a support shaft 10, on which the support bracket 7 is tightened and fixed at both ends so as to rotate integrally with the support bracket 7, is attached to a boss portion of the truck frame 1, as shown in FIG. It is rotatably attached via a bush 12 to a cylindrical body 11 formed with a.
そして、前記筒体11の両端側において、外周
側端面13a近くの全周を支軸10の軸線方向に
屈曲させて皿状に形成したバネ鋼製環状板13
を、前記筒体11の端面11aに設けてある環状
突起14により囲繞される状態で支持ブラケツト
7と筒体11の間に設け、そして、前記外周側端
面13aが前記筒体端面11aに圧接する弾性変
形状態で、かつ、前記支軸10に密着すると共に
支軸10と一体回転する状態に環状板13がなる
ように、環状板13の内周部を支持ブラケツト7
の支軸10に対する締付け力により支軸10に圧
接し、さらに、環状板13、筒体11、支軸10
及びブシユ12の夫々により形成された密閉空間
15にグリスを充填し、支軸10と筒体11の間
のシールを行つてある。 At both ends of the cylinder 11, a spring steel annular plate 13 is formed into a dish shape by bending the entire circumference near the outer peripheral end surface 13a in the axial direction of the support shaft 10.
is provided between the support bracket 7 and the cylinder 11 in a state surrounded by an annular projection 14 provided on the end surface 11a of the cylinder 11, and the outer peripheral side end surface 13a is pressed against the cylinder end surface 11a. The inner circumference of the annular plate 13 is supported by a support bracket 7 so that the annular plate 13 is in an elastically deformed state and in close contact with the support shaft 10 and rotates integrally with the support shaft 10.
The annular plate 13, the cylindrical body 11, and the support shaft 10 are pressed against the support shaft 10 by the tightening force applied to the support shaft 10.
A sealed space 15 formed by the bushings 12 and 12 is filled with grease to seal between the support shaft 10 and the cylinder 11.
前記第1案内転輪4を取付けるに、第3図に示
すように、案内転輪4を両端部夫々のテーパ部に
一体回転するようにキー16係合させると共に、
ネジ17止めした支軸18を、トラツクフレーム
1にボス部を形成してある筒体19にベアリング
20を介して回転自在に取付けてある。 To install the first guide roller 4, as shown in FIG. 3, the keys 16 are engaged with the tapered portions of the guide rollers 4 at both ends so that they rotate integrally, and
A support shaft 18 fixed with a screw 17 is rotatably attached to a cylindrical body 19 having a boss portion formed in the truck frame 1 via a bearing 20.
そして、筒体19の両端側において、シール部
材21を、ベアリング20の外側に位置させた状
態で筒体19と支軸18の間に介装し、さらに、
外周側端面22aの近くの全周を支軸18の軸線
方向に屈曲させて皿状に形成したバネ鋼製環状板
22を、筒体19と案内転輪4の間に設けると共
に、前記外周側端面22aが筒体19の端面19
aに圧接する弾性変形状態で、かつ、案内輪体4
のボス部4aに密着する状態で、さらに、案内輪
体4と一体回転する状態に環状板22がなるよう
に、環状板22の内周部をカラー23と、弾性変
形状態のゴムリング24とにより挾持させ、さら
には、筒体19、環状板22、カラー23及びシ
ール部材21により形成された密閉空間25にグ
リスを充填し、支軸18と筒体19の間のシール
を行つてある。 Then, on both end sides of the cylinder 19, a seal member 21 is interposed between the cylinder 19 and the support shaft 18 while being positioned outside the bearing 20, and further,
A spring steel annular plate 22 formed in a dish shape by bending the entire circumference near the outer peripheral end surface 22a in the axial direction of the support shaft 18 is provided between the cylinder body 19 and the guide roller 4, and the outer peripheral side The end surface 22a is the end surface 19 of the cylindrical body 19.
in an elastically deformed state in pressure contact with a, and the guide wheel 4
The inner circumferential portion of the annular plate 22 is fitted with a collar 23 and a rubber ring 24 in an elastically deformed state so that the annular plate 22 is in close contact with the boss portion 4a and rotates integrally with the guide ring 4. Further, the sealed space 25 formed by the cylinder 19, the annular plate 22, the collar 23, and the sealing member 21 is filled with grease to seal between the support shaft 18 and the cylinder 19.
尚、本考案を実施するに当り、上記実施例に示
した如く、前記環状突起14を設けると、前記外
周側端面13aと筒体11の接触点に対する泥水
等の侵入経路が、突起14、環状板13及び支持
ブラケツト7の夫々によつて細い屈曲形状に形成
されるので、シール性が一層向上して有利である
が、前記環状突起14を設けずに実施してもよ
い。 In carrying out the present invention, if the annular protrusion 14 is provided as shown in the above embodiment, the entry route for muddy water etc. to the contact point between the outer peripheral end surface 13a and the cylinder body 11 will be limited to the protrusion 14 and the annular protrusion 14. Since each of the plate 13 and the support bracket 7 is formed into a narrow bent shape, the sealing performance is further improved, which is advantageous, but the annular projection 14 may be omitted.
尚、実用新案登録請求の範囲の項に図面との対
照を便利にする為に符号を記すが、該記入により
本考案は添付図面の構造に限定されるものではな
い。 Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.
図面は本考案に係るクローラ走行装置の枢支部
シール構造の実施例を示し、第1図はクローラ走
行装置の一部切欠き側断面図、第2図は転輪支持
ブラケツト取付部の断面図、第3図は第1案内転
輪取付部の断面図である。
1……トラツクフレーム、6……案内転輪、7
……支持ブラケツト、10……支軸、11……ト
ラツクフレームボス部、11a……ボス部端面、
13……環状板、13a……環状板端面、14…
…環状突起。
The drawings show an embodiment of the pivot seal structure of the crawler traveling device according to the present invention, FIG. 1 is a partially cutaway side sectional view of the crawler traveling device, FIG. 2 is a sectional view of the mounting portion of the wheel support bracket, FIG. 3 is a sectional view of the first guide roller mounting portion. 1... Truck frame, 6... Guide wheel, 7
... Support bracket, 10 ... Support shaft, 11 ... Track frame boss portion, 11a ... Boss portion end surface,
13... Annular plate, 13a... Annular plate end surface, 14...
...annular process.
Claims (1)
7を、トラツクフレーム1のボス部11に回動
自在に支承された支軸10に固着して、前記支
持ブラケツト7を揺動自在に構成したクローラ
走行装置の枢支部シール構造であつて、外周側
端面13a近くの全周を支軸10の軸線方向に
屈曲させて皿状に形成した弾性環状板13を、
前記ボス部11の端面11aよりも外方に露出
する部位の前記支軸10部分に形成した段部と
その段部に対向する前記支持ブラケツト7とで
挾着して、外周側端面13aがトラツクフレー
ムボス部11の端面11aに圧接される弾性変
形状態で、前記ボス部11と支持ブラケツト7
との間の前記支軸10に密着状態で一体回転自
在に取付けてあるクローラ走行装置の枢支部シ
ール構造。 2 前記トラツクフレームボス部11が前記環状
板13を囲繞する環状突起14を前記端面11
aに有している実用新案登録請求の範囲第1項
に記載のクローラ走行装置の枢支部シール構
造。[Claims for Utility Model Registration] 1. The support bracket 7 of the crawler belt guide roller 6 is fixed to a support shaft 10 rotatably supported by the boss portion 11 of the truck frame 1, and the support bracket 7 is rocked. The pivot seal structure of the crawler traveling device is configured to be movable, and the elastic annular plate 13 is formed into a dish shape by bending the entire circumference near the outer peripheral end surface 13a in the axial direction of the support shaft 10.
The outer peripheral end surface 13a is clamped by a stepped portion formed on the support shaft 10 at a portion exposed outwardly than the end surface 11a of the boss portion 11 and the support bracket 7 facing the stepped portion, so that the outer peripheral end surface 13a is attached to the track. The boss portion 11 and the support bracket 7 are in an elastically deformed state in which the frame boss portion 11 is pressed against the end surface 11a of the frame boss portion 11.
A pivot seal structure for a crawler traveling device, which is rotatably attached to the support shaft 10 in close contact with the support shaft 10 between the two. 2. The truck frame boss portion 11 connects the annular protrusion 14 surrounding the annular plate 13 to the end surface 11.
A pivot seal structure for a crawler traveling device as set forth in claim 1 of the utility model registration claimed in (a).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1983053662U JPS59158575U (en) | 1983-04-11 | 1983-04-11 | Pivot seal structure of crawler traveling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1983053662U JPS59158575U (en) | 1983-04-11 | 1983-04-11 | Pivot seal structure of crawler traveling device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59158575U JPS59158575U (en) | 1984-10-24 |
JPS6318551Y2 true JPS6318551Y2 (en) | 1988-05-25 |
Family
ID=30184005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1983053662U Granted JPS59158575U (en) | 1983-04-11 | 1983-04-11 | Pivot seal structure of crawler traveling device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59158575U (en) |
-
1983
- 1983-04-11 JP JP1983053662U patent/JPS59158575U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59158575U (en) | 1984-10-24 |
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