JP2000247254A - Steering system for crawler vehicle - Google Patents
Steering system for crawler vehicleInfo
- Publication number
- JP2000247254A JP2000247254A JP11046514A JP4651499A JP2000247254A JP 2000247254 A JP2000247254 A JP 2000247254A JP 11046514 A JP11046514 A JP 11046514A JP 4651499 A JP4651499 A JP 4651499A JP 2000247254 A JP2000247254 A JP 2000247254A
- Authority
- JP
- Japan
- Prior art keywords
- planetary gear
- shaft
- output shaft
- gear mechanism
- planetary
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
- B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
- B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
- B62D11/14—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
- B62D11/18—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、スクレープドーザ
など、走行用のエンジンを横置きに搭載して機械的伝導
によって左右の走行履帯を駆動する装軌車両における操
向装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steering apparatus for a tracked vehicle, such as a scraped dozer, which horizontally mounts a traveling engine and drives left and right crawler tracks by mechanical conduction.
【０００２】[0002]
【従来の技術】ブルドーザやスクレプドーザのように走
行作業が多い装軌車両では、エンジンの動力を機械的に
伝達して走行している。スクレープドーザはスクレーパ
とブルドーザの両方の機能を備え、前進方向で掘削・積
み込み・運搬・排土・整地を行い、後進で掘削位置まで
戻るシャトル運動で連続作業ができるという特徴を有
し、道路、宅地、ゴルフ場造成、農地改良などの施工に
使用されている。2. Description of the Related Art A tracked vehicle, such as a bulldozer or a scrap dozer, which performs many traveling operations, travels by mechanically transmitting the power of an engine. The scraper dozer has both the functions of a scraper and a bulldozer, has the feature that it performs excavation, loading, transport, earth removal and leveling in the forward direction, and can perform continuous work by shuttle movement returning to the excavation position in reverse, It is used for construction of residential land, golf course development, and farmland improvement.
【０００３】スクレプドーザは図４に示すように、左右
の履帯５０の間に土砂を掘削・積み込むボウル５１を備
え、その前部に整地用のブレード５２が付設され、機体
上部には運転席５３が設けられている。この機械の走行
用の動力系統は図３に示すように、運転席後部に横置き
に搭載したエンジン１からトルクコンバータ２、変速機
３および操向装置４を介して左右の駆動輪６ａ，６ｂへ
歯車によって伝達している。As shown in FIG. 4, a scrap dozer is provided with a bowl 51 for excavating and loading earth and sand between left and right crawler belts 50, a blade 52 for leveling is provided at a front portion thereof, and a driver seat 53 is provided at an upper portion of the fuselage. Is provided. As shown in FIG. 3, the power system for traveling of this machine is driven from left and right driving wheels 6a, 6b via an torque converter 2, a transmission 3, and a steering device 4 from an engine 1 mounted laterally behind a driver's seat. It is transmitted by a gear.
【０００４】操向装置４は、車両の進行方向を変えるた
めのもので、変速機の出力軸３ａから軸継手８を介して
伝達された動力を、クラッチ７ａ，７ｂを介して左右の
ピニオン１０ａ，１０ｂへ伝達している。そして、旋回
走行する場合には旋回する方向のクラッチ７ａ（または
７ｂ）を断ち、他方側のピニオン１０ｂ（または１０
ａ）にのみ動力を伝達して動力を断った側へ旋回走行さ
せている。なお、片方の駆動輪６ａ（または６ｂ）への
動力を断つだけでは、他方の動力に引きずられて多少回
転し、緩旋回状態となるので、さらに、動力を断った側
をブレーキ５ａ（または５ｂ）で回転を止めるようにし
ている。The steering device 4 is used to change the traveling direction of the vehicle, and transmits power transmitted from an output shaft 3a of the transmission via a shaft coupling 8 to left and right pinions 10a via clutches 7a and 7b. , 10b. When turning, the clutch 7a (or 7b) in the turning direction is disconnected, and the other pinion 10b (or 10) is turned off.
Power is transmitted only to a), and the vehicle is turned to the side where the power is turned off. In addition, if the power to one drive wheel 6a (or 6b) is cut off only, it is dragged by the other power and rotates a little, resulting in a gentle turning state. ) To stop the rotation.
【０００５】したがって、旋回走行時は車速は急激に低
下し、ショックが大きいばかりでなく、牽引力も低下す
る。ブルドーザでは、傘歯車を組み合わせた差動機構を
用い車速を低下させることなく旋回走行する操向装置を
設けたものがある。[0005] Therefore, when the vehicle is turning, the vehicle speed sharply decreases, causing not only a large shock but also a decrease in traction force. Some bulldozers are provided with a steering device that turns using a differential mechanism combining bevel gears without reducing the vehicle speed.
【０００６】この操向操向は、例えば図５に示すごとき
もので、変速機３の出力軸に傘歯車６１を設けて作動歯
車６０の入力軸６２に連結し、作動歯車６０の左右の出
力軸６３、６４に図示してない左右の駆動輪を連結して
いる。そして、該出力軸６３、６４にはブレーキ６６
ａ、６６ｂが設けられている。なお、６５はデフロック
のためのクラッチである。This steering operation is, for example, as shown in FIG. 5, in which a bevel gear 61 is provided on the output shaft of the transmission 3 and connected to the input shaft 62 of the operating gear 60, so that the left and right output of the operating gear 60 Left and right driving wheels (not shown) are connected to the shafts 63 and 64. The output shafts 63 and 64 have a brake 66.
a and 66b are provided. Reference numeral 65 denotes a clutch for a differential lock.
【０００７】この操向装置では、旋回時に一方の出力軸
６３（または６４）をブレーキ６６ａ（または６６ｂ）
を作動させてその回転数を小さくすることにより、他方
の出力軸６４（または６３）を直進時より高回転にする
ことができる。したがって、車速の低下がなくスムーズ
な旋回走行ができる。なお、この操向装置ではブレーキ
によるエネルギーロスがあるので、出力軸に可変容量型
の油圧モータを付設したものが提案されている（例え
ば、特開平６−１８３３６６号）。In this steering device, one of the output shafts 63 (or 64) is turned at the time of turning by the brake 66a (or 66b).
The other output shaft 64 (or 63) can be rotated at a higher speed than when the vehicle is traveling straight by reducing the number of rotations by operating the. Therefore, smooth turning can be performed without a decrease in vehicle speed. In this steering apparatus, there is an energy loss due to a brake. Therefore, a steering apparatus having a variable displacement hydraulic motor attached to the output shaft has been proposed (for example, Japanese Patent Application Laid-Open No. 6-183366).
【０００８】[0008]
【発明が解決しようとする課題】ところで、ブルドーザ
ではエンジンを縦置き（進行方向に出力軸が位置する）
にしており、変速機の出力軸は左右の駆動輪に対してほ
ぼ中央に直角に配置している。したがって、操向装置の
長さを履帯間スペースの最大まで使用することができ
る。In the bulldozer, the engine is installed vertically (the output shaft is positioned in the traveling direction).
The output shaft of the transmission is disposed substantially perpendicular to the center of the left and right drive wheels. Thus, the length of the steering device can be used up to the maximum of the space between the tracks.
【０００９】しかしながら、スクレプドーザでは、機械
の構造上エンジンを横置きに搭載せざるを得ないため、
変速機と操向装置の両者を履帯間スペースに収める必要
がある（図３参照）。 したがって、変速機との軸継手
８から操向装置の出力側のピニオン１０ａ，１０ｂの中
心、即ち履帯間中心までをＡ寸法内に配置しなければな
らず、上記のような傘歯車を組み合わせた差動機構を用
いることはできない。However, in the scrap dozer, the engine has to be mounted horizontally because of the structure of the machine.
Both the transmission and the steering must be contained in the crawler track space (see FIG. 3). Therefore, the distance from the shaft coupling 8 to the transmission to the center of the pinions 10a and 10b on the output side of the steering device, that is, the center between the crawler tracks, must be arranged within the dimension A. No differential mechanism can be used.
【００１０】そこで、本発明は、エンジンを横置きに搭
載した装軌車両に好適な差動機構を備えたコンパクトな
操向装置を提供することを目的とする。Accordingly, an object of the present invention is to provide a compact steering device having a differential mechanism suitable for a tracked vehicle having an engine mounted horizontally.
【００１１】[0011]
【課題を解決するための手段】本発明は、上記目的を達
成するため、次の手段を採った。即ち、変速機の出力軸
に連結する入力軸を備えるとともに左右の履帯の駆動輪
へそれぞれ伝達するための出力軸を備え、該出力軸の一
方を油圧モータで変速することによって旋回走行させる
ようにした装軌車両の操向装置において、第１、第２お
よび第３の遊星歯車機構の各太陽歯車を固設した中空軸
に入力軸を挿通し、該入力軸の軸端を第１遊星歯車機構
の遊星キャリアに連結し、第２遊星歯車機構のリングギ
アを油圧モータに連結し、かつ、第２遊星歯車機構の遊
星キャリアを第１遊星歯車機構のリングギアに連結する
とともに一方の出力軸と連結し、第３遊星歯車機構のリ
ングギアをケースに固定するとともに第３遊星歯車機構
の遊星キャリアを他方の出力軸と連結したことを特徴と
している。In order to achieve the above object, the present invention employs the following means. That is, an input shaft connected to the output shaft of the transmission is provided, and an output shaft for transmitting the drive shaft to each of the left and right crawler belts is provided. In the steering apparatus for a tracked vehicle, the input shaft is inserted into a hollow shaft on which the sun gears of the first, second and third planetary gear mechanisms are fixed, and the shaft end of the input shaft is connected to the first planetary gear. A planetary carrier of the mechanism, a ring gear of the second planetary gear mechanism to the hydraulic motor, and a planetary carrier of the second planetary gear mechanism to the ring gear of the first planetary gear mechanism and one output shaft. And the ring gear of the third planetary gear mechanism is fixed to the case, and the planet carrier of the third planetary gear mechanism is connected to the other output shaft.
【００１２】本発明の操向装置は、エンジン動力を変速
機を介して機械的に履帯の駆動輪へ伝達する装軌車両、
例えばブルドーザ、スクレプドーザ、コンバイン等に適
用され、移動式クレーンや杭打機など油圧ポンプと油圧
モータによって走行する装軌車両は対象としていない。[0012] A steering device according to the present invention is a tracked vehicle that mechanically transmits engine power via a transmission to drive wheels of a crawler belt.
For example, it is applied to a bulldozer, a scrap dozer, a combine, and the like, and is not intended for a tracked vehicle running by a hydraulic pump and a hydraulic motor such as a mobile crane and a pile driver.
【００１３】また、この操向装置は、エンジンを横置き
にした装軌車両では特に有効であるが、エンジンを縦置
きとする場合でも車体の中央に搭載できない場合に適用
できる。装軌車両はトレーラなどの搬送車で工事現場へ
搬送しており、履帯間の寸法は輸送上の制限を受ける。
この履帯間に作業装置などの配置で操向装置の幅方向が
制限される場合には、請求項２に記載したように、ピニ
オンを駆動する両出力軸を第２遊星歯車機構と第３遊星
歯車機構の間に中空軸に外嵌させて設けるのがよい。即
ち、両ピニオンの中間を車体中心位置となるように操向
装置を配置するには、制限される側に第３遊星歯車機構
を配置すればよい。また、スクレプドーザのようにエン
ジンを横置きとして変速機と操向装置を左右の履帯間に
配置させる場合には特に有効である（請求項３）。[0013] This steering device is particularly effective in a tracked vehicle in which the engine is placed horizontally, but can be applied to a case where the engine cannot be mounted in the center of the vehicle body even when the engine is placed vertically. Tracked vehicles are transported to the construction site by transport vehicles such as trailers, and the dimensions between crawler tracks are subject to transportation restrictions.
In a case where the width direction of the steering device is restricted by the arrangement of the working device or the like between the crawler belts, both output shafts for driving the pinion are connected to the second planetary gear mechanism and the third planetary gear. It is preferable to be provided between the gear mechanisms so as to be fitted on the hollow shaft. That is, in order to arrange the steering device such that the center of both pinions is located at the vehicle body center position, the third planetary gear mechanism may be arranged on the restricted side. It is particularly effective when the transmission and the steering device are arranged between the left and right crawler belts with the engine placed sideways as in a scraper dozer (claim 3).
【００１４】[0014]
【発明の実施の形態】以下本発明の実施形態例を図１お
よび図２に基づいて説明する。この操向装置は、上記従
来技術で説明したスクレプドーザに適用した例を示すも
ので、図３および図４に示した各部と共通する部分につ
いては、同一の符号を付し、その説明を省略する。変速
機３の出力軸３ａと軸継手８およびピニオン１０ａ、１
０ｂは従来と同じ位置に設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. This steering device shows an example applied to the scraper dozer described in the above prior art. The same reference numerals are given to portions common to those shown in FIGS. 3 and 4 and the description thereof is omitted. . The output shaft 3a of the transmission 3, the shaft coupling 8, and the pinions 10a, 1
0b is provided at the same position as in the prior art.
【００１５】図１に示すように、変速機３の出力軸３ａ
と軸継手８を介して入力軸１１が設けられ、入力軸１１
は、第１太陽歯車１３、第２太陽歯車１８および第３太
陽歯車２６が固設された中空軸２５に挿通され、その端
部は第１遊星歯車機構３７の第１遊星キャリア１２に接
続されている。即ち、中空軸２５は、３個の遊星歯車機
構３７、３８、３９の共通の軸となっている。As shown in FIG. 1, the output shaft 3a of the transmission 3
And the input shaft 11 is provided via the shaft coupling 8.
Is inserted through a hollow shaft 25 on which the first sun gear 13, the second sun gear 18 and the third sun gear 26 are fixed, and the end thereof is connected to the first planet carrier 12 of the first planetary gear mechanism 37. ing. That is, the hollow shaft 25 is a common shaft of the three planetary gear mechanisms 37, 38, and 39.
【００１６】第１遊星キャリア１２には遊星歯車１４が
設けられており、第１太陽歯車１３と第１リングギア１
５に噛み合っている。第２遊星歯車機構３８は、中空軸
２５に固設された第２太陽歯車１８と第１リングギア１
５に連結された第２遊星キャリア１６ａに設けられた第
２遊星歯車１７と第２リングギア１９から構成され、第
２リングギア１９は油圧モータ４０の出力軸に連結され
た歯車２１に噛合う歯車２２に連結されている。また、
第２遊星歯車１４は右出力軸２０ｂと第２遊星キャリア
１６ｂによって連結されている。なお、油圧モータ４０
の回路は油圧モータ４０が正転・逆転ができ、回転数を
任意に変えることができるように構成されている。The first planetary carrier 12 is provided with a planetary gear 14 and includes a first sun gear 13 and a first ring gear 1.
5 is engaged. The second planetary gear mechanism 38 includes a second sun gear 18 fixed to the hollow shaft 25 and the first ring gear 1.
5 comprises a second planetary gear 17 and a second ring gear 19 provided on a second planetary carrier 16 a connected to the gear 5, and the second ring gear 19 meshes with a gear 21 connected to the output shaft of the hydraulic motor 40. It is connected to a gear 22. Also,
The second planetary gear 14 is connected to the right output shaft 20b by a second planet carrier 16b. The hydraulic motor 40
This circuit is configured such that the hydraulic motor 40 can rotate forward and reverse, and the rotation speed can be arbitrarily changed.
【００１７】第３遊星歯車機構３９は、中空軸２５に固
設された第３太陽歯車２６と第３遊星歯車２７とケース
３５に固設された第３リングギア３０から構成され、第
３遊星キャリア２８は左出力軸２０ａに連結されてい
る。なお、第２遊星歯車機構３８と第３遊星歯車機構３
９の各歯車の歯数はそれぞれ同一となっている。すなわ
ち、第２太陽歯車１８と第３太陽歯車２６、第２遊星歯
車１７と第３遊星歯車２７および第２リングギア１９と
第３リングギア３０が同一歯数となっている。The third planetary gear mechanism 39 comprises a third sun gear 26 fixed to the hollow shaft 25, a third planetary gear 27, and a third ring gear 30 fixed to the case 35. The carrier 28 is connected to the left output shaft 20a. The second planetary gear mechanism 38 and the third planetary gear mechanism 3
Nine gears have the same number of teeth. That is, the second sun gear 18 and the third sun gear 26, the second planetary gear 17 and the third planetary gear 27, and the second ring gear 19 and the third ring gear 30 have the same number of teeth.
【００１８】そして、左出力軸２０ａと右出力軸２０ｂ
は第２遊星歯車機構３８と第３遊星歯車機構３９の間に
対向するように設けられピニオン１０ａとピニオン１０
ｂが隣接してそれぞれ固設されている。３３、３４はケ
ース３５内に固設されたブレーキ機構で、ブレーキ機構
３３は第１リングギア１５に、ブレーキ機構３４は第３
遊星キャリア２８と係合させて設けられている。 次ぎ
にこのように構成された操向装置の作用について説明す
る。The left output shaft 20a and the right output shaft 20b
Are provided between the second planetary gear mechanism 38 and the third planetary gear mechanism 39 so as to face each other.
b are fixed adjacent to each other. 33 and 34 are brake mechanisms fixed in a case 35. The brake mechanism 33 is provided on the first ring gear 15, and the brake mechanism 34 is provided on the third ring gear 15.
It is provided in engagement with the planet carrier 28. Next, the operation of the steering device thus configured will be described.
【００１９】直進走行時においては、油圧モータ４０を
停止状態とする。エンジン１の動力は変速機３の出力軸
３ａに連結された軸継手８を介して入力軸１１へ伝達さ
れ、第１遊星歯車機構３７の第１遊星キャリア１２を回
転させる。これにより、第１リングギア１５が回転する
とともに第１太陽歯車１３が回転する。このとき、第２
リングギア１９は固定状態にあり、第１リングギア１５
の回転によって第２遊星キャリア１６ａが回転し、第２
遊星キャリア１６ｂを介して右出力軸２０ｂが回転す
る。During straight running, the hydraulic motor 40 is stopped. The power of the engine 1 is transmitted to the input shaft 11 via the shaft coupling 8 connected to the output shaft 3a of the transmission 3, and rotates the first planet carrier 12 of the first planetary gear mechanism 37. Thus, the first ring gear 15 rotates and the first sun gear 13 rotates. At this time, the second
The ring gear 19 is in a fixed state, and the first ring gear 15
Rotates the second planetary carrier 16a,
The right output shaft 20b rotates via the planet carrier 16b.
【００２０】一方、第１太陽歯車１３の回動は中空軸２
５を介して第２太陽歯車１８および第３太陽歯車２６を
回転させ、第３リングギア３０がケース３５に固定され
ているので、第３キャリア２８が回転し左出力軸２０ａ
を回転させる。第２遊星歯車機構３８と第３遊星歯車機
構３９の歯車諸元は同一であるので右出力軸２０ｂと左
出力軸２０ａは同じ回転数で回転し、それぞれピニオン
１０ｂ、１０ａを同速度で回転させる。On the other hand, the rotation of the first sun gear 13 is
5, the second sun gear 18 and the third sun gear 26 are rotated, and since the third ring gear 30 is fixed to the case 35, the third carrier 28 rotates and the left output shaft 20a
To rotate. Since the gear specifications of the second planetary gear mechanism 38 and the third planetary gear mechanism 39 are the same, the right output shaft 20b and the left output shaft 20a rotate at the same rotational speed, and rotate the pinions 10b and 10a at the same speed. .
【００２１】次に、旋回走行する場合は、油圧モータ４
０を回転させる。旋回方向は油圧モータ４０の回転方向
を変えることによって行い、旋回半径は油圧モータ４０
の回転数の増減によって行われる。油圧モータ４０の回
転は歯車２１を介して歯車２２を回転させる。これによ
り、第２リングギア１９を回転させ、右出力軸２０ｂの
回転数が変化する。そして、右出力軸２０ｂを直進時よ
り増速させた場合は、第２太陽歯車１８の回転は直進時
に比べ減速される。Next, when turning, the hydraulic motor 4
Rotate 0. The turning direction is changed by changing the rotation direction of the hydraulic motor 40, and the turning radius is changed by the hydraulic motor 40.
This is performed by increasing or decreasing the number of rotations. The rotation of the hydraulic motor 40 rotates the gear 22 via the gear 21. Thereby, the second ring gear 19 is rotated, and the rotation speed of the right output shaft 20b changes. When the speed of the right output shaft 20b is increased from that when the vehicle is traveling straight, the rotation of the second sun gear 18 is decelerated compared to when the vehicle is traveling straight.
【００２２】したがって、左出力軸２０ａは、右出力軸
２０ｂが増速した分減速される。逆に、右出力軸２０ｂ
を減速（油圧モータ４０を逆転させる）させた場合に
は、右出力軸２０ｂは減速され、第２太陽歯車１８の回
転は直進時に比べ増速される。したがって、左出力軸２
０ａは、右出力軸２０ｂが減速した分増速される。Accordingly, the left output shaft 20a is decelerated by the speed of the right output shaft 20b. Conversely, the right output shaft 20b
Is decelerated (the hydraulic motor 40 is rotated in the reverse direction), the right output shaft 20b is decelerated, and the rotation of the second sun gear 18 is increased as compared with the case of traveling straight. Therefore, the left output shaft 2
0a is increased by an amount corresponding to the deceleration of the right output shaft 20b.
【００２３】このように、旋回走行は右出力軸２０ａの
回転数を油圧モータ４０によって増減させることによっ
て行われるが、旋回走行時の車速は直進時と同じであ
る。なお、ブレーキ機構３３、３４は遊星歯車機構には
関係しない。このブレーキ機構３３、３４は同時に操作
され、車両速度の減速、停止、および駐車ブレーキとし
て使用される。As described above, turning is performed by increasing or decreasing the number of revolutions of the right output shaft 20a by the hydraulic motor 40, and the vehicle speed during turning is the same as when traveling straight. Note that the brake mechanisms 33 and 34 do not relate to the planetary gear mechanism. The brake mechanisms 33 and 34 are operated at the same time and are used as vehicle speed reduction, stop, and parking brakes.
【００２４】[0024]
【発明の効果】以上説明したように、本発明は、第１、
第２および第３の遊星歯車機構の各太陽歯車を固設した
中空軸に入力軸を挿通し、該入力軸の軸端を第１遊星歯
車機構の遊星キャリアに連結し、第２遊星歯車機構のリ
ングギアを油圧モータに連結し一方の出力軸と連結した
ので、車速を落とすことなくスムーズな旋回走行ができ
る。また、エンジンを横置きとして変速機と操向装置を
履帯間に配置することができ、エンジンを縦置きできな
い装軌車両はもちろん、エンジンを車体の中央に配置で
きない場合にも適用できるという顕著な効果がある。As described above, the present invention provides the first,
An input shaft is inserted into a hollow shaft on which each sun gear of the second and third planetary gear mechanisms is fixed, and a shaft end of the input shaft is connected to a planet carrier of the first planetary gear mechanism. Since the ring gear is connected to the hydraulic motor and to one output shaft, smooth turning can be performed without decreasing the vehicle speed. In addition, the transmission and steering system can be arranged between the crawler tracks with the engine placed horizontally, making it remarkable that it can be applied not only to tracked vehicles where the engine cannot be placed vertically, but also to cases where the engine cannot be placed in the center of the body. effective.
【図１】本発明の一実施形態としての装軌車両の操向装
置の構成を示すスケルトン図である。FIG. 1 is a skeleton diagram showing a configuration of a tracked vehicle steering apparatus as one embodiment of the present invention.
【図２】本発明の一実施形態としての装軌車両の操向装
置の一部断面図である。FIG. 2 is a partial sectional view of a steering device for a tracked vehicle as one embodiment of the present invention.
【図３】従来のスクレプドーザの動力系統を示す説明図
である。FIG. 3 is an explanatory diagram showing a power system of a conventional scrap dozer.
【図４】スクレプドーザの側面図である。FIG. 4 is a side view of a scrap dozer.
【図５】従来の操向装置の説明図である。FIG. 5 is an explanatory diagram of a conventional steering device.
１…エンジン ２…トルクコンバータ ３…変速機 ３ａ…出力軸 ４…操向装置 ５ａ，５ｂ…ブレーキ ６ａ，６ｂ…駆動輪 ７ａ，７ｂ…クラッチ ８…軸継手 １０ａ，１０ｂ…ピニオン １１…入力軸 １２…第１遊星キャリア １３…第１太陽歯車 １４…第１遊星歯車 １５…第１リングギア １６ａ、１６ｂ…第２遊星キャリア １７…第２遊星歯車 １８…第２太陽歯車 １９…第２リングギア ２０ａ…右出力軸 ２０ｂ…左出力軸 ２１、２２…歯車 ２５…中空軸 ２６…第３太陽歯車 ２７…第３遊星歯車 ２８…第３遊星キャリア ３０…第３リングギア ３３、３４…ブレーキ機構 ３５…ケース ３７…第１遊星歯車機構 ３８…第２遊星歯車機構 ３９…第３遊星歯車機構 ４０…油圧モータ ５０…履帯 ５１…ボウル ５２…ブレード ５３…運転席 ６０…作動歯車 ６１…傘歯車 ６２…入力軸 ６３、６４…出力軸 ６５…クラッチ ６６ａ，６６ｂ…ブレーキ DESCRIPTION OF SYMBOLS 1 ... Engine 2 ... Torque converter 3 ... Transmission 3a ... Output shaft 4 ... Steering device 5a, 5b ... Brake 6a, 6b ... Driving wheel 7a, 7b ... Clutch 8 ... Shaft coupling 10a, 10b ... Pinion 11 ... Input shaft 12 ... 1st planet carrier 13 ... 1st sun gear 14 ... 1st planetary gear 15 ... 1st ring gear 16a, 16b ... 2nd planet carrier 17 ... 2nd planetary gear 18 ... 2nd sun gear 19 ... 2nd ring gear 20a ... Right output shaft 20b ... Left output shaft 21,22 ... Gear 25 ... Hollow shaft 26 ... Third sun gear 27 ... Third planetary gear 28 ... Third planet carrier 30 ... Third ring gear 33,34 ... Brake mechanism 35 ... Case 37: First planetary gear mechanism 38: Second planetary gear mechanism 39: Third planetary gear mechanism 40: Hydraulic motor 50: Crawler belt 51: Bowl 52: Blade 53: Driver's seat 6 0 ... operating gear 61 ... bevel gear 62 ... input shaft 63, 64 ... output shaft 65 ... clutch 66a, 66b ... brake
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中島 弘夫 愛知県名古屋市熱田区三本松町１番１号 日本車輌製造株式会社内 (72)発明者 ユルグ フルティガ スイス国 ヴィンターツール ＣＨ−8401 ランドストラッセ25 フルティガ バウ マシーネン・ウント・コーポレーション内 (72)発明者 ウルス フルティガ スイス国 ヴィンターツール ＣＨ−8401 ランドストラッセ25 フルティガ バウ マシーネン・ウント・コーポレーション内 Ｆターム(参考） 3D052 AA02 AA16 BB08 DD01 EE01 FF01 HH01 HH02 JJ01 JJ10 JJ31 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroo Nakajima 1-1, Sanbonmatsucho, Atsuta-ku, Nagoya-shi, Aichi Japan Vehicle Manufacturing Co., Ltd. Inside Bau Maschinen und Corporation (72) Inventor Urs Furtiga Winter Tools CH-8401 Landstrasse 25 Furtiga Inside Bau Masinen und Corporation F-term (reference) 3D052 AA02 AA16 BB08 DD01 EE01 FF01 HH01 HH02 JJ01 JJ01 JJ10
Claims (3)
とともに左右の履帯の駆動輪へそれぞれ伝達するための
出力軸を備え、該出力軸の一方を油圧モータで変速する
ことによって旋回走行させるようにした装軌車両の操向
装置において、第１、第２および第３の遊星歯車機構の
各太陽歯車を固設した中空軸に入力軸を挿通し、該入力
軸の軸端を第１遊星歯車機構の遊星キャリアに連結し、
第２遊星歯車機構のリングギアを油圧モータに連結し、
かつ、第２遊星歯車機構の遊星キャリアを第１遊星歯車
機構のリングギアに連結するとともに一方の出力軸と連
結し、第３遊星歯車機構のリングギアをケースに固定す
るとともに第３遊星歯車機構の遊星キャリアを他方の出
力軸と連結したことを特徴とする装軌車両の操向装置。1. A traveling vehicle comprising an input shaft connected to an output shaft of a transmission and an output shaft for transmitting the drive shaft to drive wheels of left and right crawler belts, and one of the output shafts being shifted by a hydraulic motor. In the steering apparatus for a tracked vehicle, the input shaft is inserted into a hollow shaft on which the sun gears of the first, second, and third planetary gear mechanisms are fixed, and the shaft end of the input shaft is moved to the second end. 1 Connected to the planet carrier of the planetary gear mechanism,
Connecting the ring gear of the second planetary gear mechanism to the hydraulic motor,
Further, the planetary carrier of the second planetary gear mechanism is connected to the ring gear of the first planetary gear mechanism and to one output shaft, and the ring gear of the third planetary gear mechanism is fixed to the case, and the third planetary gear mechanism A steering device for a tracked vehicle, wherein the planet carrier is connected to the other output shaft.
車機構の間に中空軸に外嵌させて設けたことを特徴とす
る請求項１記載の装軌車両の操向装置。2. The steering apparatus for a tracked vehicle according to claim 1, wherein the two output shafts are provided between the second planetary gear mechanism and the third planetary gear mechanism so as to be fitted on the hollow shaft.
を左右の履帯間に配置させたことを特徴とする請求項２
記載の装軌車両の操向装置。3. The transmission according to claim 2, wherein the transmission and the steering device are arranged between the left and right crawler belts with the engine placed horizontally.
A steering device for a tracked vehicle according to the above.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04651499A JP4132356B2 (en) | 1999-02-24 | 1999-02-24 | Steering device for tracked vehicle |
| CH01574/01A CH694583A5 (en) | 1999-02-24 | 2000-02-22 | Control system for a caterpillar. |
| DE10083898T DE10083898T1 (en) | 1999-02-24 | 2000-02-22 | Control system for caterpillars |
| AU25313/00A AU2531300A (en) | 1999-02-24 | 2000-02-22 | Steering system for a truck-laying vehicle |
| PCT/CH2000/000094 WO2000050291A1 (en) | 1999-02-24 | 2000-02-22 | Steering system for a truck-laying vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04651499A JP4132356B2 (en) | 1999-02-24 | 1999-02-24 | Steering device for tracked vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000247254A true JP2000247254A (en) | 2000-09-12 |
| JP4132356B2 JP4132356B2 (en) | 2008-08-13 |
Family
ID=12749388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04651499A Expired - Fee Related JP4132356B2 (en) | 1999-02-24 | 1999-02-24 | Steering device for tracked vehicle |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4132356B2 (en) |
| AU (1) | AU2531300A (en) |
| CH (1) | CH694583A5 (en) |
| DE (1) | DE10083898T1 (en) |
| WO (1) | WO2000050291A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7041089B2 (en) | 2019-03-19 | 2022-03-23 | 山▲さき▼建設株式会社 | Tracked vehicle for transporting soil |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107839751B (en) * | 2017-12-01 | 2023-12-08 | 北京履坦科技有限公司 | Double-power flow force differential steering mechanism of tracked vehicle |
| CN108340776B (en) * | 2018-03-02 | 2023-09-19 | 第一拖拉机股份有限公司 | A drive train rear box for paddy field type crawler tractor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0058666B1 (en) * | 1980-09-02 | 1987-06-24 | Caterpillar Inc. | Planetary steering differential |
-
1999
- 1999-02-24 JP JP04651499A patent/JP4132356B2/en not_active Expired - Fee Related
-
2000
- 2000-02-22 DE DE10083898T patent/DE10083898T1/en not_active Withdrawn
- 2000-02-22 AU AU25313/00A patent/AU2531300A/en not_active Abandoned
- 2000-02-22 WO PCT/CH2000/000094 patent/WO2000050291A1/en not_active Application Discontinuation
- 2000-02-22 CH CH01574/01A patent/CH694583A5/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7041089B2 (en) | 2019-03-19 | 2022-03-23 | 山▲さき▼建設株式会社 | Tracked vehicle for transporting soil |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4132356B2 (en) | 2008-08-13 |
| CH694583A5 (en) | 2005-04-15 |
| DE10083898T1 (en) | 2002-05-02 |
| AU2531300A (en) | 2000-09-14 |
| WO2000050291A1 (en) | 2000-08-31 |
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