JP2617731B2 - Rear wheel steering device - Google Patents

Rear wheel steering device

Info

Publication number
JP2617731B2
JP2617731B2 JP62224174A JP22417487A JP2617731B2 JP 2617731 B2 JP2617731 B2 JP 2617731B2 JP 62224174 A JP62224174 A JP 62224174A JP 22417487 A JP22417487 A JP 22417487A JP 2617731 B2 JP2617731 B2 JP 2617731B2
Authority
JP
Japan
Prior art keywords
steering
vehicle body
connection block
axle tube
rear wheels
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
Application number
JP62224174A
Other languages
Japanese (ja)
Other versions
JPS6467481A (en
Inventor
孝雄 永井
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP62224174A priority Critical patent/JP2617731B2/en
Publication of JPS6467481A publication Critical patent/JPS6467481A/en
Application granted granted Critical
Publication of JP2617731B2 publication Critical patent/JP2617731B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/30—Rigid axle suspensions
    • B60G2200/32—Rigid axle suspensions pivoted
    • B60G2200/324—Rigid axle suspensions pivoted with a single pivot point and a triangular "T" or "U"-shaped axle, e.g. DeDion arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/30—Rigid axle suspensions
    • B60G2200/34—Stabilising mechanisms, e.g. for lateral stability
    • B60G2200/341—Panhard rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/44—Indexing codes relating to the wheels in the suspensions steerable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • B60G2202/41—Fluid actuator
    • B60G2202/413—Hydraulic actuator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/414—Cardan joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/30—Constructional features of rigid axles

Landscapes

  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Power Steering Mechanism (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ダンプトラック等の装輪式車両における後
輪を左右に操向させる装置に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for steering rear wheels left and right in a wheeled vehicle such as a dump truck.

〔従来の技術〕[Conventional technology]

装輪式車両としては、車体に左右の前輪を操向自在に
取付けると共に、後輪を備えたアクスルチューブを取体
に取付けて後輪をエンジンに連結した前輪操向式の車両
が知られている。As a wheeled vehicle, a front-wheel steering vehicle is known in which left and right front wheels are steerably mounted on a vehicle body, and an axle tube having rear wheels is mounted on a body and the rear wheels are connected to an engine. I have.

他方、後輪をも操向できるようにした四輪操向式の車
両が知られている。On the other hand, there has been known a four-wheel steering vehicle in which the rear wheels can be steered.

〔発明が解決しようとする問題点〕[Problems to be solved by the invention]

しかしながら、後輪を操向できるようにするにはキン
グピンを設けると共に、タイロッドで左右のナックルを
連結しなければならず、しかも駆動軸に等連ジョイント
を設ける必要があって構造複雑でコストが高くなる。However, in order to be able to steer the rear wheel, it is necessary to provide a king pin and connect the left and right knuckles with tie rods, and furthermore, it is necessary to provide an equal joint on the drive shaft, which is complicated in structure and costly Become.

そこで、本発明は簡単な構造で後輪を操向できるよう
にした後輪操向装置を提供することを目的とする。Therefore, an object of the present invention is to provide a rear wheel steering device that can steer the rear wheels with a simple structure.

〔問題点を解決するための手段及び作用〕[Means and actions for solving the problems]

本発明は、左右両端部に左右の後輪11がそれぞれ回転
自在に支承され、左右中間部には左右の後輪11を回転駆
動する入力軸12が設けられたアクスルチューブ１と、 このアクスルチューブ１を車体３に支持する左右サス
ペンションシンダ２と、 平面形状がほぼＶ字状で、その両端部がアクスルチュ
ーブ１の左右中間部に固着された支持フレーム５と、 この支持フレーム５の先端部にボールジョイント７で
連結した連結ブロック６と、 車体３に固着され、前記連結ブロック６が左右揺動自
在に連結されたブラケット８と、 前記連結ブロック６と車体３とに亘って連結されたス
テアリングシリンダ10と、 ハンドル15の切れ角に基づいて切換え動作されてステ
アリングシリンダ10に油圧ポンプ13の吐出圧油を供給す
るステアリング弁14とで構成した後輪操向装置である。The present invention provides an axle tube 1 having left and right rear wheels 11 rotatably supported at both left and right end portions, and an input shaft 12 provided at an intermediate left and right portion for rotationally driving the left and right rear wheels 11, respectively. A right and left suspension cynder 2 for supporting the vehicle body 1 on a vehicle body 3, a support frame 5 having a substantially V-shaped planar shape and both ends fixed to left and right intermediate portions of the axle tube 1, and a front end of the support frame 5. A connection block 6 connected by a ball joint 7; a bracket 8 fixed to the vehicle body 3 and connected to the connection block 6 so as to be able to swing left and right; a steering cylinder connected to the connection block 6 and the vehicle body 3 And a steering valve 14 that is switched based on the steering angle of the steering wheel 15 and that supplies the hydraulic pressure discharged from the hydraulic pump 13 to the steering cylinder 10. It is a steering device.

本発明によれば、ステアリングシリンダ10を伸縮する
ことで連結ブロック６がブラケット８に対して左右に揺
動し、支持アーム５を介してアクスルチューブ１が左右
に揺動するので、左右の後輪11を操向できる。According to the present invention, by expanding and contracting the steering cylinder 10, the connecting block 6 swings left and right with respect to the bracket 8, and the axle tube 1 swings left and right via the support arm 5. Can steer 11.

連結ブロック６に対して支持アーム５が上下に揺動す
るから、アクスルチューブ１上下に変位し、不整地走行
時などに左右の後輪11の衝撃力を左右のサスペンション
シリンダ２で吸収緩和できる。Since the support arm 5 swings up and down with respect to the connection block 6, the axle tube 1 is displaced up and down, so that the impact force of the left and right rear wheels 11 can be absorbed and reduced by the left and right suspension cylinders 2 when traveling on uneven terrain.

〔実 施 例〕〔Example〕

アクスルチューブ１は左右のサスペンションシリンダ
2,2で車体３に支持されていると共に、車体３とアクス
ルチューブ１とに亘ってリンク４が横向きに枢着連結さ
れ、アクスルチューブ１にはＶ字状の支持フレーム５が
連結してあり、この支持フレーム５は連結ブロック６に
ボールジョイント７で揺動自在に連結されていると共
に、その連結ブロック６は車体３に取着したブラケット
８にピン９で左右回転自在に支承され、さらに連結ブロ
ック６と車体３とに亘ってステアリングシリンダ10が枢
着連結してあると共に、前記アクスルチューブ１内には
図示しない左右の駆動軸が支承され、この左右の駆動軸
に後輪11がそれぞれ装着されていると共に、左右の駆動
軸は図示しない差動機構を介して入力軸12に連結し、入
力軸12は自在継手を介して図示しないエンジンに連結し
てある。Axle tube 1 is left and right suspension cylinder
2 and 2, the link 4 is pivotally connected to the vehicle body 3 and the axle tube 1 in a horizontal direction, and a V-shaped support frame 5 is connected to the axle tube 1. The support frame 5 is swingably connected to a connection block 6 by a ball joint 7, and the connection block 6 is supported on a bracket 8 attached to the vehicle body 3 by pins 9 so as to be rotatable left and right. A steering cylinder 10 is pivotally connected between the block 6 and the vehicle body 3, and left and right drive shafts (not shown) are supported in the axle tube 1. Rear wheels 11 are mounted on the left and right drive shafts, respectively. The left and right drive shafts are connected to an input shaft 12 via a differential mechanism (not shown), and the input shaft 12 is connected to an engine (not shown) via a universal joint.

第２図に示すように、前記ステアリングシリンダ10に
はポンプ13の圧油がステアリング弁14で供給制御され、
このステアリング弁14はハンドル15の切れ角をセンサー
16でコントローラ17に入力し、そのコントローラ17より
の信号で切換られると共に、コントローラ17にはストロ
ークセンサー18よりのステアリングシリンダ10のストロ
ークと車速センサ19よりの車速がフィードバックされ、
ハンドル15の切れ角に見合うだけステアリングシリンダ
10がストロークするとステアリング弁14が中立に復帰す
るようにしてある。As shown in FIG. 2, the pressure oil of a pump 13 is controlled to be supplied to the steering cylinder 10 by a steering valve 14.
This steering valve 14 detects the turning angle of the handle 15
At 16, it is input to the controller 17, and is switched by a signal from the controller 17, and the stroke of the steering cylinder 10 from the stroke sensor 18 and the vehicle speed from the vehicle speed sensor 19 are fed back to the controller 17,
Only the steering cylinder that matches the turning angle of the handle 15
The steering valve 14 is returned to neutral when the stroke 10 is made.

しかして、ハンドル15を操作するとステアリング弁14
が切換って油圧ポンプ13の吐出圧油がステアリングシリ
ンダ10の第１室10a又は第２室10bに供給されて伸長又は
縮少し、これにより連結ブロック６が左右に揺動して支
持アーム５を介してアクスルチューブ１が左右に揺動す
るので、左右の後輪11を操向できる。When the handle 15 is operated, the steering valve 14
Is switched, and the discharge pressure oil of the hydraulic pump 13 is supplied to the first chamber 10a or the second chamber 10b of the steering cylinder 10 to expand or contract, whereby the connecting block 6 swings right and left and the support arm 5 is moved. Since the axle tube 1 swings left and right through the rear wheel, the left and right rear wheels 11 can be steered.

〔発明の効果〕〔The invention's effect〕

ステアリングシリンダ10を伸縮することで連結ブロッ
ク６がブラケット８に対して左右に揺動し、支持アーム
５を介してアクスルチューブ１が左右に揺動するので、
左右の後輪11を操向できる。Since the connecting block 6 swings left and right with respect to the bracket 8 by expanding and contracting the steering cylinder 10, the axle tube 1 swings left and right via the support arm 5.
The left and right rear wheels 11 can be steered.

連結ブロック６に対して支持アーム５が上下に揺動す
るから、アクスルチューブ１が上下に変位し、不整地走
行時などに左右の後輪11の衝撃力を左右のサスペンショ
ンシリンダ２で吸収緩和できる。Since the support arm 5 swings up and down with respect to the connecting block 6, the axle tube 1 is displaced up and down, and the impact force of the left and right rear wheels 11 can be absorbed and reduced by the left and right suspension cylinders 2 when traveling on uneven terrain. .

したがって、回転駆動される左右の後輪11を操向でき
るし、左右の後輪11の衝撃力を吸収緩和できる。Therefore, the left and right rear wheels 11 driven by rotation can be steered, and the impact force of the left and right rear wheels 11 can be absorbed and reduced.

しかも、アクスルチューブ１に支持アーム５を固着
し、その支持アーム５に連結ブロック６を連結し、その
連結ブロック６をブラケット８に連結し、連結ブラケッ
ト６と車体３とに亘ってステアリングシリンダ10を連結
すれば良いから、構造が簡単であるし、取付け作業が容
易である。Moreover, the support arm 5 is fixed to the axle tube 1, the connection block 6 is connected to the support arm 5, the connection block 6 is connected to the bracket 8, and the steering cylinder 10 is connected between the connection bracket 6 and the vehicle body 3. Since the connection is sufficient, the structure is simple and the mounting work is easy.

さらに、支持アーム５は平面形状がほぼＶ字状で、そ
の両端部がアクスルチューブ１に固着され、先端部に連
結ブラケット６が連結してあるから、長尺なアクスルチ
ューブ１を１つの支持アーム５で車体３に取付けでき
る。Further, since the support arm 5 has a substantially V-shaped planar shape, both ends of which are fixed to the axle tube 1 and the connecting bracket 6 is connected to the distal end, the long axle tube 1 is connected to one support arm. 5 can be attached to the vehicle body 3.

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

図面は本発明の実施例を示し、第１図は斜視図、第２図
は平面図である。 １はアクスルチューブ、２はサスペンションシリンダ、
５は支持アーム、10はステアリングシリンダ、11は後
輪、13は油圧ポンプ、14はステアリング弁、15はハンド
ル。The drawings show an embodiment of the present invention. FIG. 1 is a perspective view and FIG. 2 is a plan view. 1 is an axle tube, 2 is a suspension cylinder,
5 is a support arm, 10 is a steering cylinder, 11 is a rear wheel, 13 is a hydraulic pump, 14 is a steering valve, and 15 is a steering wheel.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】左右両端部に左右の後輪11がそれぞれ回転
自在に支承され、左右中間部には左右の後輪11を回転駆
動する入力軸12が設けられたアクスルチューブ１と、 このアクスルチューブ１を車体３に支持する左右のサス
ペンションシンダ２と、 平面形状がほぼＶ字状で、その両端部がアクスルチュー
ブ１の左右中間部に固着された支持フレーム５と、 この支持フレーム５の先端部にボールジョイント７で連
結した連結ブロック６と、 車体３に固着され、前記連結ブロック６が左右揺動自在
に連結されたブラケット８と、 前記連結ブロック６と車体３とに亘って連結されたステ
アリングシリンダ10と、 ハンドル15の切れ角に基づいて切換え動作されてステア
リングシリンダ10に油圧ポンプ13の吐出圧油を供給する
ステアリング弁14とで構成した後輪操向装置。1. An axle tube 1 having left and right rear wheels 11 rotatably supported at left and right end portions, and an input shaft 12 provided at an intermediate portion between the left and right wheels for driving the left and right rear wheels 11 to rotate. A suspension frame 2 for supporting the tube 1 on the vehicle body 3, a support frame 5 having a substantially V-shaped planar shape and both ends fixed to left and right intermediate portions of the axle tube 1, and a tip of the support frame 5 A connection block 6 connected to the vehicle body 3 by a ball joint 7; a bracket 8 fixed to the vehicle body 3 and connected to the connection block 6 so that the connection block 6 can swing left and right; and a connection block 6 and the vehicle body 3 A steering cylinder 10 and a steering valve 14 that is switched based on the steering angle of the handle 15 and supplies the hydraulic pressure discharged from the hydraulic pump 13 to the steering cylinder 10 Rear wheel steering device.
JP62224174A 1987-09-09 1987-09-09 Rear wheel steering device Expired - Lifetime JP2617731B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62224174A JP2617731B2 (en) 1987-09-09 1987-09-09 Rear wheel steering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62224174A JP2617731B2 (en) 1987-09-09 1987-09-09 Rear wheel steering device

Publications (2)

Publication Number Publication Date
JPS6467481A JPS6467481A (en) 1989-03-14
JP2617731B2 true JP2617731B2 (en) 1997-06-04

Family

ID=16809685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62224174A Expired - Lifetime JP2617731B2 (en) 1987-09-09 1987-09-09 Rear wheel steering device

Country Status (1)

Country Link
JP (1) JP2617731B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2800611B2 (en) * 1992-12-14 1998-09-21 三菱自動車工業株式会社 Rear wheel steering device for trucks
ATE263039T1 (en) 2001-01-26 2004-04-15 Dana Italia Spa HINGED AXLE SUSPENSION FOR INDUSTRIAL VEHICLES
DE10309996A1 (en) * 2003-03-03 2004-09-23 Neoplan Bus Gmbh Device for connecting a rear axle to the vehicle body of a motor vehicle
DE102008063812A1 (en) * 2008-12-19 2010-06-24 Zf Friedrichshafen Ag Suspension device with roll compensation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6276079U (en) * 1985-10-31 1987-05-15
JPS62178407A (en) * 1986-07-08 1987-08-05 Toyota Motor Corp Toe angle adjustor for vehicle
JPS63184184U (en) * 1987-05-20 1988-11-28

Also Published As

Publication number Publication date
JPS6467481A (en) 1989-03-14

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