JP3625119B2 - Crawler travel device - Google Patents

Crawler travel device Download PDF

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Publication number
JP3625119B2
JP3625119B2 JP05234997A JP5234997A JP3625119B2 JP 3625119 B2 JP3625119 B2 JP 3625119B2 JP 05234997 A JP05234997 A JP 05234997A JP 5234997 A JP5234997 A JP 5234997A JP 3625119 B2 JP3625119 B2 JP 3625119B2
Authority
JP
Japan
Prior art keywords
crawler belt
crawler
driven wheel
track frame
traveling device
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 - Fee Related
Application number
JP05234997A
Other languages
Japanese (ja)
Other versions
JPH10230874A (en
Inventor
良 武市
昇 江原
祥司 笠崎
則昭 永田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ATECS CORP
Original Assignee
ATECS CORP
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ATECS CORP filed Critical ATECS CORP
Priority to JP05234997A priority Critical patent/JP3625119B2/en
Publication of JPH10230874A publication Critical patent/JPH10230874A/en
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Publication of JP3625119B2 publication Critical patent/JP3625119B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【０００１】
【発明の属する技術分野】
本発明は、農業あるいは土木作業等に使用される運搬車等のクローラ走行装置に関する。
【０００２】
【従来の技術】
クローラ走行装置は、前後に設ける駆動輪と従動輪にクローラベルトを巻き掛け、中間部のクローラベルト内面に接地輪を複数個設け、従動輪でクローラベルトを張るようにしている。
【０００３】
【発明が解決しようとする課題】
従来のクローラ走行装置は、複数の接地輪を枢支したトラックフレームの上部に従動輪でクローラベルトを張るようにするためのばね押圧機構を設けている。
このため、クローラベルトの上下高さが高くなり、クローラベルト上車体部や荷台が高くなり全体的に重心位置の高い不安定な走行機体となっていた。
そこで、本発明では、クローラベルトの上下高さを低くできるクローラ走行装置とすることを課題とする。
【０００４】
【課題を解決するための手段】
本発明では、駆動輪１と従動輪２にクローラベルト３を巻きかけたクローラ走行装置において、駆動輪１と従動輪２の間でクローラベルト３の内面に当接する複数の接地輪４を両持ちで枢支する下方を開放した断面コの字状のトラックフレーム５を設けると共に、該トラックフレーム５の左右外肩部に一対のガイド筒６を固着し、このガイド筒６に挿入したロッド７の先端に従動輪２を回転可能に設け、該ロッド７を押圧してクローラベルト３を緊張可能にし、少なくとも該クローラベルト３の上側前部を側面視前方下り傾斜に構成してなるクローラ走行装置。
【０００５】
【発明の作用及び効果】
本発明では、機体の重量を支える複数の接地輪４を、下方を開放した断面コの字状のトラックフレーム５に両持ちで支持しているため強固であり、従動輪２を枢支するロッド７をトラックフレーム５の左右外側肩部に固着したガイド筒６に挿通しているため、従動輪２に加わるクローラベルト３からの反力を強固に受け止めることが可能であると共に、クローラベルト３の上側前部を側面視前方下り傾斜に構成してあるので、走行機体前部の重心位置が低くできるものである。
【０００６】
【実施例】
次に、本発明の実施例を図面を参照しながら説明する。駆動輪１は、ギャボックスから突出した出力軸に取り付けたスプロケットで、クローラベルト３を係合して回転する。
トラックフレーム５は断面コ字状の型鋼で、内部に複数の接地輪を一定間隔で枢支し、上部には、クローラベルトの内面を受ける上転輪８を枢支して、このトラックフレーム５の前後を車体に横枠９，１０で連結している。
トラックフレーム５の前側左右側部には前後方向にガイド筒６を固着し、このガイド筒６にロッド７を挿通している。左右ロッド７の先端には従動輪１を枢支するクレビス１１を固着し、左右ロッド７の後端にはブラケット１２を取り付けている。ブラケット１２は、トラックフレーム５の上側に固着したブロック１５に回動可能に取り付けたネジ軸１３に螺着していて、ネジ軸１３を回動するこしで、このブラケット１２が前後動し、ロッド７を介して従動輪２が前後動してクローラベルト３を緊張する。
１４は、ネジ軸１３の回動を止めるロックネジである。
【図面の簡単な説明】
【図１】本発明の実施例を示す側面図である。
【図２】本発明の実施例を示す正断面図である。
【符号の説明】
１ 駆動輪
２ 従動輪
３ クローラベルト
４ 接地輪
５ トラックフレーム
６ ガイド筒
７ ロッド[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a crawler traveling device such as a transport vehicle used for agriculture or civil engineering work.
[0002]
[Prior art]
In the crawler traveling device, a crawler belt is wound around a driving wheel and a driven wheel provided at the front and rear, a plurality of grounding wheels are provided on the inner surface of the crawler belt at an intermediate portion, and the crawler belt is stretched by the driven wheel.
[0003]
[Problems to be solved by the invention]
A conventional crawler traveling device is provided with a spring pressing mechanism for tensioning a crawler belt with a driven wheel on an upper part of a track frame that pivotally supports a plurality of grounding wheels.
For this reason, the vertical height of the crawler belt is increased, and the vehicle body part and the loading platform on the crawler belt are increased, resulting in an unstable traveling body having a high center of gravity as a whole.
Accordingly, an object of the present invention is to provide a crawler traveling device that can reduce the vertical height of the crawler belt.
[0004]
[Means for Solving the Problems]
In the present invention, in the crawler traveling device in which the crawler belt 3 is wound around the driving wheel 1 and the driven wheel 2, the plurality of grounding wheels 4 that are in contact with the inner surface of the crawler belt 3 are both held between the driving wheel 1 and the driven wheel 2. A track frame 5 having a U-shaped cross section that is open at the bottom is provided, and a pair of guide cylinders 6 are fixed to the left and right outer shoulders of the track frame 5, and the rod 7 inserted into the guide cylinder 6 is fixed. A crawler traveling device in which a driven wheel 2 is rotatably provided at the tip, the rod 7 is pressed to allow the crawler belt 3 to be tensioned , and at least the upper front portion of the crawler belt 3 is configured to be inclined forward and downward in a side view .
[0005]
[Action and effect of the invention]
In the present invention, a plurality of grounding wheels 4 that support the weight of the fuselage are supported by both ends of a U-shaped track frame 5 that is open at the bottom, so that the rod is strong and pivotally supports the driven wheel 2. 7 is inserted into the guide cylinder 6 fixed to the left and right outer shoulders of the track frame 5, so that it is possible to firmly receive the reaction force from the crawler belt 3 applied to the driven wheel 2, and the crawler belt 3 Since the upper front part is configured to be inclined forward and downward in a side view, the center of gravity position of the front part of the traveling machine body can be lowered.
[0006]
【Example】
Next, embodiments of the present invention will be described with reference to the drawings. The drive wheel 1 is a sprocket attached to the output shaft protruding from the gabbox, and rotates with the crawler belt 3 engaged.
The track frame 5 is a steel having a U-shaped cross section, and a plurality of grounding rings are pivotally supported therein at a predetermined interval, and an upper roller 8 that receives the inner surface of the crawler belt is pivotally supported on the upper part. Are connected to the vehicle body by horizontal frames 9 and 10.
A guide tube 6 is fixed to the front left and right side portions of the track frame 5 in the front-rear direction, and a rod 7 is inserted through the guide tube 6. A clevis 11 that pivotally supports the driven wheel 1 is fixed to the front ends of the left and right rods 7, and a bracket 12 is attached to the rear ends of the left and right rods 7. The bracket 12 is screwed to a screw shaft 13 rotatably attached to a block 15 fixed to the upper side of the track frame 5, and the bracket 12 moves back and forth by rotating the screw shaft 13. 7, the driven wheel 2 moves back and forth to tension the crawler belt 3.
Reference numeral 14 denotes a lock screw that stops the rotation of the screw shaft 13.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of the present invention.
FIG. 2 is a front sectional view showing an embodiment of the present invention.
[Explanation of symbols]
1 Drive Wheel 2 Driven Wheel 3 Crawler Belt 4 Ground Wheel 5 Track Frame 6 Guide Tube 7 Rod

Claims (1)

駆動輪（１）と従動輪（２）にクローラベルト（３）を巻きかけたクローラ走行装置において、駆動輪（１）と従動輪（２）の間でクローラベルト（３）の内面に当接する複数の接地輪（４）を両持ちで枢支する下方を開放した断面コの字状のトラックフレーム（５）を設けると共に、該トラックフレーム（５）の左右外側肩部に一対のガイド筒（６）を固着し、このガイド筒（６）に挿入したロッド（７）の先端に従動輪（２）を回転可能に設け、該ロッド（７）を押圧してクローラベルト（３）を緊張可能にし、少なくとも該クローラベルト（３）の上側前部を側面視前方下り傾斜に構成してなるクローラ走行装置。In the crawler traveling device in which the crawler belt (3) is wound around the driving wheel (1) and the driven wheel (2), the inner surface of the crawler belt (3) is brought into contact between the driving wheel (1) and the driven wheel (2). A track frame (5) having a U-shaped cross-section with a lower opening for pivotally supporting a plurality of grounding rings (4) is provided, and a pair of guide cylinders (on the left and right outer shoulders of the track frame (5)). fixed 6), the guide tube (provided distal to the driven wheels of the inserted rod 6) (7) (2) rotatably, the crawler belt (3) the possible tension by pressing the rod (7) A crawler traveling device in which at least an upper front portion of the crawler belt (3) is configured to be inclined forward and downward in a side view .
JP05234997A 1997-02-20 1997-02-20 Crawler travel device Expired - Fee Related JP3625119B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05234997A JP3625119B2 (en) 1997-02-20 1997-02-20 Crawler travel device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05234997A JP3625119B2 (en) 1997-02-20 1997-02-20 Crawler travel device

Publications (2)

Publication Number Publication Date
JPH10230874A JPH10230874A (en) 1998-09-02
JP3625119B2 true JP3625119B2 (en) 2005-03-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP05234997A Expired - Fee Related JP3625119B2 (en) 1997-02-20 1997-02-20 Crawler travel device

Country Status (1)

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JP (1) JP3625119B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015067210A (en) * 2013-09-30 2015-04-13 ヤンマー株式会社 Work vehicle

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