JPS60203501A - Method of expanding/contracting axle of working vehicle - Google Patents

Method of expanding/contracting axle of working vehicle

Info

Publication number
JPS60203501A
JPS60203501A JP6202084A JP6202084A JPS60203501A JP S60203501 A JPS60203501 A JP S60203501A JP 6202084 A JP6202084 A JP 6202084A JP 6202084 A JP6202084 A JP 6202084A JP S60203501 A JPS60203501 A JP S60203501A
Authority
JP
Japan
Prior art keywords
wheel
axle
fixed
cylinder
movable beam
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.)
Pending
Application number
JP6202084A
Other languages
Japanese (ja)
Inventor
Hirofumi Ishii
石井　宏翰
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.)
Shinmaywa Industries Ltd
Original Assignee
Shin Meiva Industry Ltd
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 Shin Meiva Industry Ltd filed Critical Shin Meiva Industry Ltd
Priority to JP6202084A priority Critical patent/JPS60203501A/en
Publication of JPS60203501A publication Critical patent/JPS60203501A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/003—Steerable axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/02—Dead axles, i.e. not transmitting torque
    • B60B35/10—Dead axles, i.e. not transmitting torque adjustable for varying track
    • B60B35/1036—Dead axles, i.e. not transmitting torque adjustable for varying track operated with power assistance
    • B60B35/1054—Dead axles, i.e. not transmitting torque adjustable for varying track operated with power assistance hydraulically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/02—Dead axles, i.e. not transmitting torque
    • B60B35/10—Dead axles, i.e. not transmitting torque adjustable for varying track
    • B60B35/1072—Dead axles, i.e. not transmitting torque adjustable for varying track by transversally movable elements
    • B60B35/109—Dead axles, i.e. not transmitting torque adjustable for varying track by transversally movable elements the element is an axle part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/40—Special vehicles
    • B60Y2200/41—Construction vehicles, e.g. graders, excavators
    • B60Y2200/416—Cranes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

PURPOSE:To ease extending an axle in the captioned method for a self-traveling working vehicle like a construction machine by constituting a system in such a manner that a steering wheel, which is made at first to perpendicularly cross a fixed beam, returns to the original posture after a movable beam has been extended. CONSTITUTION:After a steering cylinder 9 is fixed at the neutral position, a rotating cylinder 12 is extended so as to rotate a wheel-supporting frame 11 outward by about 90 deg. around a pivottaly supporting part 11a, thereby situating a front wheel 1 at the back of a fixed beam 7R. Next, an axle-extending cylinder 13 is operated for extension in order to shift the supporting frame 11 outward via a movable beam 10. As a result, the pivottaly supporting part 11a for both the wheel-supporting frame 11 and the movable beam 10 is shifted outward, being restricted by rotating cylinder 12. At the same time, the wheel 1 rolls and returns again to the position at which the transverse axis of the fixed beam 7 comes in line with the axis of rotation of the wheel 1. With this contrivance, extension of an axle can easily be done.

Description

【発明の詳細な説明】 （技術分野） 本発明は建設機械、ホイール式高所作業車など自走式作
業車両の車軸伸縮方法に関する・（従来技？ｌｌ１） 一般に、自走式作業車両としては建設機械、ホイール式
クレーンあるいはホイール式高所作業車などが知られて
いる。Detailed Description of the Invention (Technical Field) The present invention relates to an axle extension and contraction method for self-propelled work vehicles such as construction machines and wheeled aerial work vehicles. Construction machines, wheeled cranes, and wheeled aerial work vehicles are known.

このような自走、弐作業車両においては、作業中。In such self-propelled, two-work vehicles, during work.

に転倒モーメントが作用すると転倒の恐れが生じるため
、車輪によって支持される車体の安定性を確保すると、
ともに運搬等を容易にする目的で、車軸を伸縮できるよ
うにすることが行なわれている。If overturning moment acts on the vehicle, there is a risk of it falling over, so ensuring the stability of the vehicle body supported by the wheels
In both cases, the axle is made extendable and retractable for the purpose of facilitating transportation.

しかし従来の車軸伸縮方法は作業車のブー云先端を地表
面に押付けて車体を持ち上げて車輪を地　′表面から浮
かせ、内蔵したシリンダ等により車軸を伸縮させるもの
であったため、ブームを地面に　□押付けるための場所
が必要であるとともに、前後の車軸を同時に伸縮させる
ことはできないため、伸縮に時間を要するという欠点を
有していた。However, the conventional axle extension/retraction method was to press the tip of the boom of the work vehicle against the ground, lift the vehicle body, lift the wheels off the ground, and extend/retract the axle using built-in cylinders, etc., so the boom could not be placed on the ground. In addition to requiring a place to press, the front and rear axles cannot be expanded and contracted at the same time, which has the drawback of requiring time for expansion and contraction.

（目　的） 本発明は上記の点に鑑み、作業車両の車軸を容易に伸縮
することのできる方法を提供するものである。(Objective) In view of the above-mentioned points, the present invention provides a method by which the axle of a work vehicle can be easily extended and contracted.

（溝　成） 固定ビーム内に摺動自在に可動ビームを嵌挿し、この可
動ビームの先端部に車輪支持フレームを介して操８乞車
輪を装着し、前記操配車輪を固定ビー”ムと直交する状
態より平行な状態に回動させ、次いで可動ビームを伸長
させた伐、再び操艇車輪を直交すや状ＭＫ復帰させて車
軸を伸縮させるようにしたものである。(Nari Mizo) A movable beam is slidably inserted into a fixed beam, a steering wheel is attached to the tip of the movable beam via a wheel support frame, and the steering wheel is orthogonal to the fixed beam. Then, the movable beam is extended, and the boat steering wheel is returned to the orthogonal spear shape MK again to extend and retract the axle.

（実施例） アベ、トと組合わせて、ＰＬは前座、ＰＲは前布、ＲＬ
は後左、ＲＲは後右を、またＦは前方、Ｒは後方をそれ
ぞれ示すものとする）を備えた車台２上に旋回台６が旋
回自在に搭載されており、この旋回台６には伸縮ブーム
４が起伏シリンダ５を介して起伏自在に枢着されている
。　との伸縮ブーム４は図示しない伸縮シリンダにより
伸縮され、その最先ブーム４ａ先端には作業台６が伸縮
ブーム４の起伏に拘わらず平衡保持されるように構成さ
れている。(Example) In combination with Abe and G, PL is the front seat, PR is the front cloth, RL
is the rear left, RR is the rear right, F is the front, and R is the rear. A telescoping boom 4 is pivotally attached via a hoisting cylinder 5 so that it can be hoisted freely. The telescopic boom 4 is extended and retracted by a telescopic cylinder (not shown), and a workbench 6 is configured to be maintained in equilibrium at the tip of the foremost boom 4a, regardless of the ups and downs of the telescopic boom 4.

そして、この作業台６には操作装置ｓが備えられており
、作業車の移動及びブーム関連作動が制御されるもので
ある。The workbench 6 is equipped with an operating device s, which controls movement of the work vehicle and boom-related operations.

一方、車台１の前後部に固設された固定ビーム　−７の
略中央部には回動部材８の基部が枢着８シされ、この回
動部材８の略中央部と前記固定ビーム７間には操＃已シ
リンダ９が配設されている。On the other hand, the base of a rotating member 8 is pivotally attached to a substantially central portion of a fixed beam 7 fixed to the front and rear portions of the vehicle chassis 1. An operating cylinder 9 is provided.

・また、前記固定ビームＺ内には可動ビーム１０がそれ
ぞれ外方に摺動自在に嵌挿され、その先端には４個の車
輪１を同転自在に装着したＲＬ輪支持フレーム１１０基
端が枢着１１ａされており、該車輪支持フレーム１１を
介して各車輪１の操期色が可能となっている。- Furthermore, the movable beams 10 are fitted into the fixed beams Z so as to be able to slide outward, and the base end of the RL wheel support frame 110 on which the four wheels 1 are rotatably mounted is attached to the tip of each movable beam 10. It is pivotally mounted 11a, and the rotation color of each wheel 1 can be changed via the wheel support frame 11.

そして、前記回動部材８の先部と前記単輪支持フレーム
１１の先端間には回動シリンダ１２が枢支連結され、ま
た、前記固定ビーム７と可動ビーム１０間には車軸伸縮
シリンダ１６が連結されている。A rotation cylinder 12 is pivotally connected between the tip of the rotation member 8 and the tip of the single wheel support frame 11, and an axle telescopic cylinder 16 is connected between the fixed beam 7 and the movable beam 10. connected.

なお、詳細には説明しないが、各車輪１にはそれぞれ走
行用油圧モータが装着されているものである。Although not described in detail, each wheel 1 is equipped with a travel hydraulic motor.

（動作の説明） まず、通常の走行状態より車軸を伸長する場合には、操
胞シリンダ９を中゛正位ｉに固定した後、回動シリンダ
１２を伸長すれば、車輪支持フレーム１１は枢漕都１１
ａ回りに約９０度外方に回動し、前ｉｔｆ＃＠１’（Ｐ
Ｌ、ＰＲ）が固定ビーム７Ｆの前方に、後車輪１．（Ｒ
Ｌ　、　Ｒ１（）が固定ビーム７Ｒの後方に位置して第
６図（ａ）に示すように、それぞれ固定ビーム７の左右
方向軸と各車輪１０回転軸が直交するようになる。　こ
の後、車軸伸縮シリンダ１６を伸長作動すれは、可動ビ
ーム１Ｕを介して車輪支持フレーム１１が外方へ移動す
る。(Explanation of operation) First, when extending the axle from the normal running condition, after fixing the steering cylinder 9 in the center position i, extending the rotation cylinder 12, the wheel support frame 11 pivots. Koto 11
Rotate outward about 90 degrees around a, and move the front itf#@1'(P
L, PR) are located in front of the fixed beam 7F, and the rear wheels 1. (R
L and R1 ( ) are located behind the fixed beam 7R, so that the left-right axis of the fixed beam 7 and the rotational axis of each wheel 10 are perpendicular to each other, as shown in FIG. 6(a). Thereafter, when the axle telescopic cylinder 16 is extended, the wheel support frame 11 moves outward via the movable beam 1U.

この結果、車輪支持フレーム１１と口Ｊ勤ビーム１０と
の枢支部１１ａｔｊ１回動シリンダ１２に規制されて外
側方に移動するから、車輪１は第６図（１＋）に示すよ
うに転動しながら再び固定ビーム７の横軸線と回転軸線
とが一致するように復帰する。As a result, the wheel 1 moves outward while being regulated by the pivot portion 11atj1 of the wheel support frame 11 and the J-beam 10 and the rotation cylinder 12, so that the wheel 1 rolls as shown in FIG. 6 (1+). The horizontal axis of the fixed beam 7 and the rotational axis are returned to coincide again.

したがって、左右の車輪間距離は拡大することになる。Therefore, the distance between the left and right wheels increases.

　また、車軸を縮小させる場合には前述の手順を逆に行
なえばよい。Moreover, when reducing the axle, the above-mentioned procedure may be performed in reverse.

なお、上記動作は４個の車輪全てについて張出す場合を
想定して説明したが、左方あるいは右方の前後車輪のみ
を外側方に張出すことも可能である０ （効　果）・ 以上のように本発明にあっては前後の車軸を短Ｒ１ｉＪ
Ｊ　Ｋ　、かつきわめて容易に伸縮させることができる
ものである。The above operation has been explained assuming that all four wheels are extended outward, but it is also possible to extend only the left or right front and rear wheels outward. In the present invention, the front and rear axles are short R1iJ.
J K and can be expanded and contracted extremely easily.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の実施例を４くずもので、第１図は作業車
両としての高所作業車の全体側面図、第２図は操向装置
を示す平面図、ａ４３図（、）〜（ｂ）は車軸伸縮方法
の説明蘭である。 ７・・・・固定ビーム、１０・・・・可動ビーム、１２
・・・・回動シリンダ、１６・・・・車軸伸縮シリンダ
。 第　１　図 第　２１４The drawings show four embodiments of the present invention, and Fig. 1 is an overall side view of an aerial work vehicle as a working vehicle, Fig. 2 is a plan view showing the steering device, and Figs. ) is an explanation of the axle extension method. 7...Fixed beam, 10...Movable beam, 12
... Rotating cylinder, 16... Axle telescopic cylinder. Figure 1 No. 214

Claims (1)

【特許請求の範囲】[Claims] （７）車体の前後部にそれぞれ固設された固定ゼームと
、該固定ビームに摺動自在に嵌挿された可動ビームと、
該可動ビームの先端部に車輪支持フレームを介して装着
された操舵車輪とよりなり、前記操舵車輪を固定ビーム
と直交する状態より平行な状態に回動させた後、可動ビ
ームを伸長させ、再び操力色車輪を直交する状態に復帰
させるようにした作業車両の車軸伸縮方法。(7) fixed beams fixed to the front and rear of the vehicle body, and a movable beam slidably inserted into the fixed beam;
A steering wheel is attached to the tip of the movable beam via a wheel support frame, and after the steering wheel is rotated from a state perpendicular to the fixed beam to a state parallel to the fixed beam, the movable beam is extended and the steering wheel is rotated again. A method for extending and contracting an axle of a work vehicle in which the steering wheel is returned to an orthogonal state.
JP6202084A 1984-03-28 1984-03-28 Method of expanding/contracting axle of working vehicle Pending JPS60203501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6202084A JPS60203501A (en) 1984-03-28 1984-03-28 Method of expanding/contracting axle of working vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6202084A JPS60203501A (en) 1984-03-28 1984-03-28 Method of expanding/contracting axle of working vehicle

Publications (1)

Publication Number Publication Date
JPS60203501A true JPS60203501A (en) 1985-10-15

Family

ID=13188063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6202084A Pending JPS60203501A (en) 1984-03-28 1984-03-28 Method of expanding/contracting axle of working vehicle

Country Status (1)

Country Link
JP (1) JPS60203501A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08113003A (en) * 1994-09-29 1996-05-07 Kidde Ind Inc Expandable retractable tie rod axle device
WO1996036523A1 (en) * 1994-05-10 1996-11-21 Ag-Chem Equipment Company, Incorporated Automatically adjusted rear axle track for agricultural vehicle with adjustable axles
EP2412614A3 (en) * 2010-07-30 2012-07-18 Deere & Company Method for changing the track of a vehicle
CN103601139A (en) * 2013-11-28 2014-02-26 中联重科股份有限公司 Aloft work platform vehicle, axle telescopic device and control method and control device thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996036523A1 (en) * 1994-05-10 1996-11-21 Ag-Chem Equipment Company, Incorporated Automatically adjusted rear axle track for agricultural vehicle with adjustable axles
JPH08113003A (en) * 1994-09-29 1996-05-07 Kidde Ind Inc Expandable retractable tie rod axle device
EP2412614A3 (en) * 2010-07-30 2012-07-18 Deere & Company Method for changing the track of a vehicle
CN103601139A (en) * 2013-11-28 2014-02-26 中联重科股份有限公司 Aloft work platform vehicle, axle telescopic device and control method and control device thereof

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