JPH03186479A - Power steering device for multi-axle-steered vehicle - Google Patents
Power steering device for multi-axle-steered vehicleInfo
- Publication number
- JPH03186479A JPH03186479A JP1326030A JP32603089A JPH03186479A JP H03186479 A JPH03186479 A JP H03186479A JP 1326030 A JP1326030 A JP 1326030A JP 32603089 A JP32603089 A JP 32603089A JP H03186479 A JPH03186479 A JP H03186479A
- Authority
- JP
- Japan
- Prior art keywords
- rack
- pinion
- steering
- steering wheel
- shafts
- 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
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Power Steering Mechanism (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、多軸操舵輪を有する大型車の動力舵取装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a power steering device for a large vehicle having multi-axis steering wheels.
〈従来の技術〉
大型車において５前２輪が操舵輪を装備しているものに
あっては、操舵軸重が重いため、ステアリングクレイア
ウトの中にパワーシリンダが絹み込まれている。<Prior Art> In large vehicles in which the front two wheels are equipped with steering wheels, the power cylinder is embedded in the steering layout because the steering axle load is heavy.
〈発明が解決しようとする課題〉
そのために、パワーシリンダは出力の大きい大型のもの
を必要とし、またステアリングリンクレイアウトの中に
組み込むため、リンク機構か複雑となり、重量の増大、
コメ１−高になっている。<Problems to be solved by the invention> For this purpose, the power cylinder needs to be large and has a large output, and since it is incorporated into the steering link layout, the link mechanism becomes complicated, resulting in increased weight and
Comment 1 - It's high.
く課題を解決するための手段〉
本発明による多軸操舵輪の動力舵取装置の構成は、前、
後操舵輪の各タイロッドアームにパワーシリンダを備え
たラックアンドピニオン機構のラック軸を結合し、この
各ラックアンドピニオン機構のピニオン間を回転軸で連
結し７、前操舵輪測のビニオンとハンドルとをベベルギ
ヤを介して回転軸で連結させ、前記ハンドルの回転と連
動して作動される前記パワーシリンダの抽圧制御弁を備
えて成るものである。Means for Solving the Problems> The configuration of the power steering device for multi-axis steering wheels according to the present invention is as follows.
The rack shaft of a rack and pinion mechanism equipped with a power cylinder is connected to each tie rod arm of the rear steering wheel, and the pinions of each rack and pinion mechanism are connected by a rotating shaft. are connected to each other by a rotating shaft via a bevel gear, and includes an extraction pressure control valve for the power cylinder that is operated in conjunction with the rotation of the handle.
く作 用〉
上記の構成により、ハンドルの回転が前、後操舵輪の各
ラックアンドピニオンａ構に伝達され、同時にパワーシ
リンダの作動による出力によって、操舵力が軽減される
。そ１．て、ラック軸の動きを直接タイロッドアームに
作用して前後操舵輪の舵角を得るものである。Operation> With the above configuration, the rotation of the steering wheel is transmitted to each of the rack and pinion structures of the front and rear steering wheels, and at the same time, the steering force is reduced by the output from the operation of the power cylinder. Part 1. The steering angle of the front and rear steered wheels is obtained by applying the movement of the rack shaft directly to the tie rod arm.
〈実施例〉 以十本考案の実施間の一つを図面に基づいて説明する。<Example> Hereinafter, one of the implementations of the present invention will be explained based on the drawings.
１ａは前操舵輪、１ｂは後操舵輪であり２ａ、２ｂは前
記各操舵輪１ａ、１ｂのタイロッドアムである。1a is a front steering wheel, 1b is a rear steering wheel, and 2a and 2b are tie rod arms of each of the steering wheels 1a and 1b.
３ａ、３ｂζよ前記各操舵輪１ａ、１ｈに対するパワシ
リンダでありラック７′ンドピニオン機構を備えている
。４ａ、４ｂはパワーシリンダ３ａ、３ｂを貫通した作
動軸であり、その両端は前記タイロッドアーム２ａ、２
ｂに結合されている。この作動軸４ａ、４ｂのパワーシ
リンダ３ａ、３ｂ内にはビス１ヘン５ａ、５ｂが形成さ
れ、パワーシリンダ３ａ、３ｂより外部に出ている作動
軸４ａ、４ｂにはラック６ａ、６ｂが形成されている。3a and 3bζ are power cylinders for the respective steered wheels 1a and 1h, and are equipped with a rack 7' and pinion mechanism. 4a, 4b are actuating shafts that pass through the power cylinders 3a, 3b, and both ends thereof are connected to the tie rod arms 2a, 2.
It is connected to b. Screws 5a, 5b are formed inside the power cylinders 3a, 3b of the operating shafts 4a, 4b, and racks 6a, 6b are formed on the operating shafts 4a, 4b protruding from the power cylinders 3a, 3b. ing.
このラック６ａ、６ｂには作動軸４ａ、４ｂの軸線と交
叉する軸線でピニオン１２．１４が噛合され、この両ピ
ニオン１２．１４間をユニバーサルジヨイント１５を介
して回転軸１３によって連結している。A pinion 12.14 is meshed with the racks 6a, 6b along an axis that intersects with the axis of the operating shafts 4a, 4b, and the two pinions 12.14 are connected by a rotating shaft 13 via a universal joint 15. .
７はハンドルであり、その回転がギヤボックス８内のベ
ベルギヤ９及び回転軸１０．１１を介して前操舵輪１ａ
測のピニオン１２に伝達するようになっている。１５は
ユニバーザルジヨイントである。7 is a steering wheel, whose rotation is directed to the front steering wheel 1a via a bevel gear 9 in a gear box 8 and a rotating shaft 10.11.
The signal is transmitted to the measuring pinion 12. 15 is a universal joint.
前記ギヤボックス８には油圧制御弁１６が設けられ、前
記ベベルギヤ９の回転と連動して作動される。尚、油圧
制御弁１６をオアワーシリンダ３ａ、３ｈのピニオン１
２．１４部分に設けた構造も可能である。この油圧制御
弁１６と前操舵輪１ａ側のパワーシリンダ３ａの左右室
とを圧油給排管１９によって接続し、前記パワーシリン
ダ３ａの左右室と後操舵輪１６曲のパワーシリンダ３ｂ
の左右室とを１１浦給排管２０によって接続し７ている
。The gear box 8 is provided with a hydraulic control valve 16, which is operated in conjunction with the rotation of the bevel gear 9. Note that the hydraulic control valve 16 is connected to the pinion 1 of the hour cylinders 3a and 3h.
A structure provided in the 2.14 portion is also possible. This hydraulic control valve 16 and the left and right chambers of the power cylinder 3a on the front steering wheel 1a side are connected by a pressure oil supply and exhaust pipe 19, and the left and right chambers of the power cylinder 3a and the power cylinder 3b on the rear steering wheel 16 side are connected.
The left and right chambers are connected to each other by a supply and exhaust pipe 20.
１７はオイルタンクであり、１８はオイルポンプである
。２１は前記オイルポンプ１８と油圧制御弁１６とを接
続した圧油供給管であり、２２はオイルタンク１７への
圧油排出管である。17 is an oil tank, and 18 is an oil pump. 21 is a pressure oil supply pipe connecting the oil pump 18 and the hydraulic control valve 16, and 22 is a pressure oil discharge pipe to the oil tank 17.
本発明は上記の通りの構成であるから、ハンドル７を回
転することにより、ベベルギヤ９を介して回転軸１０．
１１が回転され前操舵Ｖａ１ａ（′ｌ！ｌのピニオン１
２を回転し、さらにピニオン１２の回転により回転軸１
３を介して後操舵輪１６側のピニオン１４を同期回転す
る。これにより、ラック軸４ａ、４ｂかピニオン１２．
１４とラック６ａ、６ｂとの噛合により軸移動されるが
、前記ベベルギヤ９の回転に基ついて油圧制御弁１６に
よりパワーシリンダ３ａ、３ｂへの圧油の給排作用を行
い、パワーシリンダ３ａ、３ｂによって前記ラック軸４
ａ、４ｂの軸移動を補助して操舵力を大幅に軒減する６
そして、ラック軸４ａ、４ｂの軸移動に上りタイロッド
アーム２ａ、２ｂを介して前、後操舵輪１ａ、１ｂにハ
ンドル７の回転角に基づいた舵角を付与するものである
。Since the present invention is configured as described above, by rotating the handle 7, the rotating shaft 10.
11 is rotated and the front steering Va1a ('l!l pinion 1
2, and further rotation of the pinion 12, the rotating shaft 1
3, the pinion 14 on the rear steering wheel 16 side is rotated synchronously. As a result, either the rack shafts 4a, 4b or the pinion 12.
14 and the racks 6a, 6b, the hydraulic control valve 16 supplies and discharges pressure oil to and from the power cylinders 3a, 3b based on the rotation of the bevel gear 9, and the power cylinders 3a, 3b According to the rack axis 4
Substantially reduces steering force by assisting axis movement of a and 4b 6
A steering angle based on the rotation angle of the handle 7 is applied to the front and rear steered wheels 1a and 1b via the tie rod arms 2a and 2b as the rack shafts 4a and 4b move.
〈発明の効果〉
以」−のように本発明によると、前、後操舵輪の各タイ
ロッドアームにパワーシリンダを備えたラックアンドピ
ニオン機構のラック軸を結合し、この各ラックアンドピ
ニオン機構のピニオン間を回転軸で連結し、前操舵輸測
のピニオンとハンドルとをベベルギヤを介して回転軸で
連結させ、前記ベベルイヤの回転と連動して作動される
パワーシリンダの油圧制御弁を備えた構成であるから、
従来のような複雑なリンク機構を不要とし、パワーシリ
ンダを小型化すると共に低床化を可能とし、Ｗ１構の簡
素化と軽量化並びにコストダウンが図られる利点を有し
ている６<Effects of the Invention> According to the present invention, the rack shaft of a rack and pinion mechanism equipped with a power cylinder is coupled to each tie rod arm of the front and rear steering wheels, and the pinion of each rack and pinion mechanism is connected to each tie rod arm of the front and rear steering wheels. The pinion of the front steering wheel and the handle are connected by a rotating shaft through a bevel gear, and the hydraulic control valve of the power cylinder is operated in conjunction with the rotation of the bevel ear. because there is,
It eliminates the need for a conventional complicated link mechanism, allows the power cylinder to be smaller and lower in profile, and has the advantage of simplifying the W1 structure, reducing weight and cost.6
図面は本発明の要部断面平面図である。
１ａ・・・前操舵輪、１ｂ・・・後操舵輪、２ａ、２ｂ
・・・タイロッドアーム、３ａ、３ｈ・・・パワーシリ
ンダ、４ａ、４ｂ・・・ラック軸、５ａ、５ｂ・・・ピ
スト・ン、６ａ、６ｂ・・・ラック、７・・・ハンドル
、９・・・ベベルギヤ、１０．１１・・回転軸、１２・
・・ピニオン、１３・・・回転軸、１４・・・ピニオン
、１５・・・ユニバーサルジヨイント、１６・・・油圧
制御弁、１７・・・オイルタンク、１８・・・オイルボ
ンブ、１９．
２０・・・圧油給排管。
特
許
出
願
人
日野自動車工業株式会社The drawing is a sectional plan view of a main part of the present invention. 1a...front steering wheel, 1b...rear steering wheel, 2a, 2b
...Tie rod arm, 3a, 3h...Power cylinder, 4a, 4b...Rack shaft, 5a, 5b...Piston, 6a, 6b...Rack, 7...Handle, 9...・・Bevel gear, 10.11・・Rotating shaft, 12・
... Pinion, 13... Rotating shaft, 14... Pinion, 15... Universal joint, 16... Hydraulic control valve, 17... Oil tank, 18... Oil bomb, 19. 20...Pressure oil supply and discharge pipe. Patent applicant Hino Motors Co., Ltd.
Claims (1)
記前、後操舵輪の各タイロッドアームにパワーシリンダ
を備えたラックアンドピニオン機構のラック軸を結合し
、この各ラックアンドピニオン機構のピニオン間を回転
軸で連結し、前操舵輪側のピニオンとハンドルとをベベ
ルギヤを介して回転軸で連結させ、前記ハンドルの回転
と連動して作動される前記パワーシリンダの油圧制御弁
を備えて成る多軸操舵車の動力舵取装置In a multi-shaft steering vehicle having a front steering wheel and a rear steering wheel, a rack shaft of a rack and pinion mechanism equipped with a power cylinder is coupled to each tie rod arm of the front and rear steering wheels, and each of the rack and pinion mechanisms The pinions of the front steering wheel are connected by a rotating shaft, the pinion on the front steering wheel side and a handle are connected by a rotating shaft via a bevel gear, and the power cylinder has a hydraulic control valve that is operated in conjunction with rotation of the handle. Power steering system for multi-shaft steering vehicles
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1326030A JPH03186479A (en) | 1989-12-18 | 1989-12-18 | Power steering device for multi-axle-steered vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1326030A JPH03186479A (en) | 1989-12-18 | 1989-12-18 | Power steering device for multi-axle-steered vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03186479A true JPH03186479A (en) | 1991-08-14 |
Family
ID=18183315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1326030A Pending JPH03186479A (en) | 1989-12-18 | 1989-12-18 | Power steering device for multi-axle-steered vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03186479A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307891A (en) * | 1992-09-29 | 1994-05-03 | Shaw David C | Automotive steering system |
| KR101033786B1 (en) * | 2004-10-29 | 2011-05-13 | 현대자동차주식회사 | Test apparatus with noise generating function for tire pressure monitoring system |
| CN102372029A (en) * | 2011-07-23 | 2012-03-14 | 青岛理工大学 | Electric control all-wheel steering system for multi-axle vehicle |
| CN107161212A (en) * | 2017-05-22 | 2017-09-15 | 安徽江淮汽车集团股份有限公司 | A kind of double-front axle automobile steering system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5820565A (en) * | 1981-07-28 | 1983-02-07 | Honda Motor Co Ltd | Steering gear for vehicle |
| JPS61238573A (en) * | 1985-04-13 | 1986-10-23 | Mazda Motor Corp | Vehicle four wheel steering device |
-
1989
- 1989-12-18 JP JP1326030A patent/JPH03186479A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5820565A (en) * | 1981-07-28 | 1983-02-07 | Honda Motor Co Ltd | Steering gear for vehicle |
| JPS61238573A (en) * | 1985-04-13 | 1986-10-23 | Mazda Motor Corp | Vehicle four wheel steering device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307891A (en) * | 1992-09-29 | 1994-05-03 | Shaw David C | Automotive steering system |
| KR101033786B1 (en) * | 2004-10-29 | 2011-05-13 | 현대자동차주식회사 | Test apparatus with noise generating function for tire pressure monitoring system |
| CN102372029A (en) * | 2011-07-23 | 2012-03-14 | 青岛理工大学 | Electric control all-wheel steering system for multi-axle vehicle |
| CN107161212A (en) * | 2017-05-22 | 2017-09-15 | 安徽江淮汽车集团股份有限公司 | A kind of double-front axle automobile steering system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2695500B2 (en) | Tractor steerable wheel axle suspension | |
| US6386310B2 (en) | Steering device, especially for farming tractors and similar commercial vehicles | |
| JPS61105274A (en) | Four-wheel steering device for vehicle | |
| JPH03186479A (en) | Power steering device for multi-axle-steered vehicle | |
| US4016948A (en) | Dual steering system for vehicle | |
| JPS5820565A (en) | Steering gear for vehicle | |
| JPH02182596A (en) | Steering lowerer | |
| US3994362A (en) | Hydraulically operated steer axle linkage | |
| JP3508816B2 (en) | Power steering device | |
| US3752248A (en) | Hydraulic steering system | |
| JP2617731B2 (en) | Rear wheel steering device | |
| JPS60197471A (en) | 4-wheel steering apparatus for car | |
| GB1275617A (en) | Power-assisted steering mechanisms for motor vehicles | |
| US20230159097A1 (en) | Steering axle for a steerable vehicle and industrial truck | |
| JPH0630525Y2 (en) | Four-wheel drive work vehicle | |
| JPS6365550B2 (en) | ||
| JPH01195181A (en) | Rear wheel steering device | |
| JPH0374272A (en) | Steering method and device for front wheel steering full wheel driving type self-running vehicle | |
| JPS6092987A (en) | Two rear-shaft type car | |
| JPS61238573A (en) | Vehicle four wheel steering device | |
| JPH0229018Y2 (en) | ||
| SU691336A1 (en) | Apparatus for controlling trailer wheels | |
| JPH04110273A (en) | Power steering device | |
| JPS64378Y2 (en) | ||
| JPH06255507A (en) | Steering device of two front axle vehicle |