JPH0228022A - Oil feeding structure of working vehicle - Google Patents
Oil feeding structure of working vehicleInfo
- Publication number
- JPH0228022A JPH0228022A JP17558288A JP17558288A JPH0228022A JP H0228022 A JPH0228022 A JP H0228022A JP 17558288 A JP17558288 A JP 17558288A JP 17558288 A JP17558288 A JP 17558288A JP H0228022 A JPH0228022 A JP H0228022A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- lubricating oil
- transmission
- shaft
- transmission shaft
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
- A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
- A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
- A01B63/1006—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means the hydraulic or pneumatic means structurally belonging to the tractor
- A01B63/1013—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means the hydraulic or pneumatic means structurally belonging to the tractor and being located inside the tractor body
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Arrangement Of Transmissions (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はミッションケースの潤滑油を作動油とするアク
チュエータを制御するためのコントロールバルブが、こ
のミッションケース内に配置されると共に、コントロー
ルバルブから排出される戻り油を回収して、ミッション
ケース内の伝動軸の端部に開放する潤滑油路に導き、こ
の伝動軸に外嵌する部材に対し潤滑油として供給する潤
滑油供給系が形成されている作業車の給油構造に関する
。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a control valve for controlling an actuator that uses lubricating oil in a transmission case as a working oil. A lubricating oil supply system is formed that collects the discharged return oil and guides it to a lubricating oil passage that opens at the end of the transmission shaft in the transmission case, and supplies it as lubricating oil to the members that are externally fitted to this transmission shaft. Regarding the refueling structure of working vehicles.
従来、冒記の如く構成されている給油構造としては、実
開昭６０−１８９６６５号公報等に示すものが存在し、
この引例の給油構造では、油圧シリンダを制御するコン
トロールバルブからの戻す油を、伝動軸の端部に設けた
漏斗状の部材で回収し、伝動軸の潤滑油路に導くよう構
成されている。Conventionally, as a refueling structure configured as described above, there is one shown in Japanese Utility Model Application Publication No. 189665/1983, etc.
In the oil supply structure of this reference, the oil returned from the control valve that controls the hydraulic cylinder is collected by a funnel-shaped member provided at the end of the transmission shaft, and is guided to the lubricating oil path of the transmission shaft.
しかし、このようにコントロールバルブからの戻り油を
回収するために専用の部材を設ける構造では、部品点数
が増大するばかりで無く、製作に手間を要するため改善
の余地がある。However, such a structure in which a dedicated member is provided for recovering oil returned from the control valve not only increases the number of parts but also requires time and effort to manufacture, so there is room for improvement.
本発明の目的は合理的な改造によって、コントロールバ
ルブからの戻り油を回収するための専用の部材を用いる
こと無く、伝動軸に対して戻り油の供給を行える給油構
造を構成する点にある。An object of the present invention is to construct an oil supply structure that can supply return oil to a transmission shaft through rational modification without using a special member for collecting return oil from a control valve.
本発明の特徴は冒記構成の給油構造において、前記戻り
油を貯留して前記伝動軸の端部から前記潤滑油路に送る
タンク部材が、伝動軸の端部に隣接して設けられ、かつ
、このタンク部材にアイドルギヤの支軸の一端側を支持
する支持部が形成されている点にあり、その作用、及び
、効果は次の通りである。A feature of the present invention is that in the oil supply structure having the above configuration, a tank member that stores the return oil and sends it from the end of the transmission shaft to the lubricating oil path is provided adjacent to the end of the transmission shaft, and The tank member is provided with a support portion that supports one end of the spindle of the idle gear, and its functions and effects are as follows.
上記特徴を例えば第１図に示すように構成すると、タン
ク部材（３４）は、コントロールバルブ（３３）からの
戻り油を貯留し、かつ、伝動軸（１２）の端部から潤滑
油路（１２ａ） に導くと同時に、支持部（３４Ｃ）
によって、アイドルギヤ（２３）の支軸（２４）の一
端側を支持する。When the above characteristics are configured as shown in FIG. 1, for example, the tank member (34) stores return oil from the control valve (33), and runs from the end of the transmission shaft (12) to the lubricating oil path (12a). ) At the same time, the support part (34C)
supports one end side of the support shaft (24) of the idle gear (23).
つまり、タンク部材（３４）は戻り油の貯留、案内と、
支軸（２４）の支持とに兼用されているのである。In other words, the tank member (34) serves to store and guide return oil,
It is also used to support the support shaft (24).
従って、タンク部材を設けるという改造によって、専用
の部材を設けること無く、コントロールバルブからの戻
り油を伝動軸の潤滑油路に供給できる給油構造が構成さ
れたのである。Therefore, by modifying the vehicle by providing a tank member, an oil supply structure was constructed that can supply the return oil from the control valve to the lubricating oil path of the transmission shaft without providing any special member.
特に本発明では、回転動力を伝えることの無いアイドル
ギヤの支軸をタンク部材で支持するので、支持部の構造
が簡素化できると共に、このタンク部材に貯留した戻り
油を支軸とアイドルギヤとの間の部位に対し潤滑油とし
て供給できるという効果も奏する。In particular, in the present invention, since the support shaft of the idle gear, which does not transmit rotational power, is supported by the tank member, the structure of the support part can be simplified, and the return oil stored in this tank member can be transferred between the support shaft and the idle gear. It also has the effect of being able to supply lubricating oil to the parts in between.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第３図に示すように、車体の前部にエンジン（１）と主
クラツチハウジング（２）とを連結状態で配置すると共
に、主クラツチハウジング（２）の後面にミッションケ
ース（３）を連結し、ミッションケース（３）の上部に
左右一対のリフトアーム（４）を駆動昇降する油圧シリ
ンダ（５）（アクチュエータの一例）を設け、運転座席
（６）、ステアリングハンドル（７）、左右一対の前車
輪（８）、及び、後車輪（９）を設け、作業車の一例と
しての農用トラクタのが構成されている。As shown in Figure 3, an engine (1) and a main clutch housing (2) are connected to each other at the front of the vehicle body, and a transmission case (3) is connected to the rear of the main clutch housing (2). A hydraulic cylinder (5) (an example of an actuator) that drives a pair of left and right lift arms (4) to raise and lower them is installed at the top of the transmission case (3), and a hydraulic cylinder (5) (an example of an actuator) is installed in the upper part of the transmission case (3). A wheel (8) and a rear wheel (9) are provided to constitute an agricultural tractor as an example of a working vehicle.
この農用トラクタでは、走行変速系に、シンクロナイザ
型のギヤ変速機構と、このギヤ変速機構をシフ）１作す
る複数の油圧シリンダと、この油圧シリンダの動作時に
一旦切り操作され、かつ、動作完了時に入り操作される
油圧クラッチ夫々を有して成る油圧操作型の変速装置（
Ａ）（詳細せず）が備えられると共に、車体を旋回させ
る際には前車輪（８）の駆動速度を増大させる前輪増速
装置（Ｂ）が備えられ、更に、前記油圧クラッチに潤滑
油を供給するための専用の供給系が形成されている。In this agricultural tractor, the traveling transmission system includes a synchronizer-type gear transmission mechanism, multiple hydraulic cylinders that shift this gear transmission mechanism, and which are once switched off when the hydraulic cylinders operate, and which are turned off when the operation is completed. A hydraulically operated transmission device comprising hydraulic clutches that are engaged and operated (
A) (details not given) is provided, and a front wheel speed increasing device (B) is provided to increase the drive speed of the front wheels (8) when the vehicle body turns, and furthermore, a lubricating oil is supplied to the hydraulic clutch. A dedicated supply system is formed for the supply.
第１図に示す如く、変速装置（Ａ）の後半部分が構成さ
れ、前記油圧クラッチ（１０）には主変速装置（図示せ
ず）からの動力が第１伝動軸（１１）を介して伝えられ
、油圧クラッチ（１０）からの動力は第２伝動軸（１２
）を介して前後進切換装置（１３）、及び、第３伝動軸
（１４）に外嵌する副変速装置（１５）に伝えられ、第
３伝動軸（１４）からの動力は第４伝動軸（１６） 、
及び、ドライブピニオンギヤ（１７）を介して後車輪（
９）の差動装置（９ａ）に伝えられる。As shown in FIG. 1, the latter half of the transmission (A) is configured, and power from the main transmission (not shown) is transmitted to the hydraulic clutch (10) via a first transmission shaft (11). The power from the hydraulic clutch (10) is transmitted to the second transmission shaft (12).
) to the forward/reverse switching device (13) and the auxiliary transmission (15) fitted externally to the third transmission shaft (14), and the power from the third transmission shaft (14) is transmitted to the fourth transmission shaft. (16),
And the rear wheel (
9) is transmitted to the differential device (9a).
尚、ミッションケース（３）の底部には第３図に示すＰ
ＴＯ軸（１８）に動力を伝えるための第１軸（１９）、
及び、第２軸（２０）が配置され、第１軸（１９）には
一方クラッチ（２１）が介装されている。Furthermore, the bottom of the mission case (3) is marked with P as shown in Figure 3.
a first shaft (19) for transmitting power to the TO shaft (18);
A second shaft (20) is arranged, and a one-way clutch (21) is interposed in the first shaft (19).
次に、前車輪（８）に対する伝動系を説明する。Next, the transmission system for the front wheels (8) will be explained.
第１図に示すように前記第４伝動軸（１６）には出力ギ
ヤ（２２）がスプライン嵌合し、この出力ギヤ（２２）
と咬合する大ギヤ部と出力用の小ギヤ部とを有するアイ
ドルギヤ（２３）が支軸（２４）に遊転支承され、出力
ギヤ（２２）からの動力はアイドルギヤ（２３）、第４
伝動軸（１６）に遊転支承されるギヤ（２５）、前記第
２軸（２０）に遊転支承されるギヤ（２６）、ミッショ
ンケース内の部材に遊転支承されるギヤ（２７）夫々を
順次伝えられた後、ミッションケース（３）の底面に取
付けられた前輪増速装置（Ｂ）の人力ギヤ（２８）に伝
えられるようになっている。As shown in FIG. 1, an output gear (22) is spline-fitted to the fourth transmission shaft (16), and the output gear (22)
An idle gear (23) having a large gear part meshing with the fourth gear part and a small gear part for output is rotatably supported on the spindle (24), and the power from the output gear (22) is transmitted to the idle gear (23) and the fourth gear part.
A gear (25) rotatably supported by the transmission shaft (16), a gear (26) rotatably supported by the second shaft (20), and a gear (27) rotatably supported by a member inside the transmission case. After being transmitted sequentially, the transmission is transmitted to the manual gear (28) of the front wheel speed increaser (B) attached to the bottom of the transmission case (3).
尚、前輪増速装置（Ｂ）は、前記入力ギヤ（２８）を遊
転支承する出力軸（２９）と、人力ギヤ（２８）の方向
へシフト部材（３０ａ）を操作することで入力ギヤ（２
８）からの動力を、そのまま出力軸（２９）に伝え、逆
方向へシフト部材（３０ａ）を操作することで摩擦板の
圧接によって、増速動力を出力軸（２９）に伝えるクラ
ッチ機構（３０）と、入力ギヤ（２８）からの動力を増
速するギヤ伝動機構（３１）とを有し、この前輪増速装
置（Ｂ）は車体の直進走行時には、シフト部材（３０ａ
）を入力ギヤ（２８）と咬合させ、旋回時にはシフト部
材（３０ａ）を摩擦板圧接方向に操作するよう、機械式
の操作系（図示せず）を介して揉向揉作系と連係され、
又、出力軸（２９）からの動力は、中間軸（３２）を介
して前車輪（８）の差動装置（８ａ）に伝えられるよう
伝動系が形成されている。The front wheel speed increasing device (B) has an output shaft (29) that freely supports the input gear (28), and a shift member (30a) in the direction of the manual gear (28). 2
8) is transmitted to the output shaft (29) as it is, and by operating the shift member (30a) in the opposite direction, the clutch mechanism (30 ) and a gear transmission mechanism (31) that speeds up the power from the input gear (28), and this front wheel speed increasing device (B) has a shift member (30a) when the vehicle is traveling straight.
) is engaged with the input gear (28), and is linked to the massaging system via a mechanical operating system (not shown) so as to operate the shift member (30a) in the friction plate pressing direction when turning.
Further, a transmission system is formed so that the power from the output shaft (29) is transmitted to the differential device (8a) of the front wheels (8) via the intermediate shaft (32).
当該農用トラクタでは、前記油圧シリンダ（５）の作動
油として、ミッションケース内の潤滑油が用いられ、又
、この油圧シリンダ（５）を制御スルコントロールバル
ブ（３３）がミッションケース内に配置され、更に、こ
のコントロールバルブ（３３）からの戻り油を油圧クラ
ッチ（１０）の潤滑油に用いるようになっている。In the agricultural tractor, lubricating oil in the transmission case is used as hydraulic oil for the hydraulic cylinder (5), and a control valve (33) for controlling the hydraulic cylinder (5) is disposed in the transmission case, Furthermore, the return oil from this control valve (33) is used as lubricating oil for the hydraulic clutch (10).
つまり、第１図及び第２図に示すように、第２伝動軸（
１２）には軸芯に沿って潤滑油路（１２ａ）が穿設され
、この潤滑油路（１２ａ） は後方の軸端部で開放し、
この軸端部に隣接してタンク部材（３４）が設けられ、
このタンク部材（３４）には、コントロールバルブ（３
３）から案内管（３５）を介して送られる戻り油を受は
入れる開口（３４ａ） と、タンク部材（３４）に貯留
した戻り油を第２伝動軸（１２）の側に導く、案内部（
３４ｂ） と、前記アイドルギヤ（２３）の支軸（２
４）の一端側を受ける支持部（３４ｃ）とが形成されて
いる。In other words, as shown in FIGS. 1 and 2, the second transmission shaft (
12) has a lubricating oil passage (12a) drilled along the shaft center, and this lubricating oil passage (12a) opens at the rear shaft end,
A tank member (34) is provided adjacent to this shaft end,
This tank member (34) has a control valve (3
3) through the guide pipe (35); and a guide section that guides the return oil stored in the tank member (34) toward the second transmission shaft (12). (
34b) and the support shaft (2) of the idle gear (23).
4) a support portion (34c) for receiving one end side is formed.
そして、作業時にはタンク部材（３４）に貯留された戻
り油が案内部（３４ｂ）を介して潤滑油路（１２ａ）に
導かれ、油圧クラッチ（１０）の摩擦板に供給されるよ
うに構成されている。During work, the return oil stored in the tank member (34) is guided to the lubricating oil path (12a) via the guide portion (34b) and is supplied to the friction plate of the hydraulic clutch (10). ing.
尚、この供給系ではコントロールバルブ（３３）に対し
て背圧を作用させないよう案内管（３５）とタンク部材
（３４）の開口（３４ａ） との間には間隙が確保さ
れている。In this supply system, a gap is provided between the guide pipe (35) and the opening (34a) of the tank member (34) so that no back pressure is applied to the control valve (33).
本発明は上記実施例以外に、例えば、アイドルギヤが前
後進切換用に用いられるものであっても良く、又、潤滑
油が供給される対象が油圧クラッチ以外のものであって
も良く、又、本発明は農用トラクタ以外の作業車に適用
しても良い。In addition to the above-mentioned embodiments, the present invention may be applied to, for example, an idle gear used for switching between forward and backward travel, or an object to which lubricating oil is supplied may be other than a hydraulic clutch, or However, the present invention may be applied to work vehicles other than agricultural tractors.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係る作業車の給油構造の実施例を示し、
第１図は伝動ケースの断面図、第２図はタンク部材の斜
視図、第３図は農用トラクタの全体側面図である。
（３）・・・・・・ミッションケース、（５）−・・・
・・アクチユエータ、（１２）・・・・・・伝動軸、（
１２＆）・・・・・・潤滑油路、（２３）・・・・・・
アイドルギヤ、（２４）・・・・・・支軸、（３３）・
・・・・・コントロールバルブ、（３４）・・・・・・
タンク部材、支持部（３４ｃ）・・・・・・The drawings show an embodiment of the refueling structure for a work vehicle according to the present invention,
FIG. 1 is a sectional view of a transmission case, FIG. 2 is a perspective view of a tank member, and FIG. 3 is an overall side view of the agricultural tractor. (3)...Mission case, (5)-...
... Actuator, (12)... Transmission shaft, (
12 &)... Lubricating oil path, (23)...
Idle gear, (24)...Spin shaft, (33)
...Control valve, (34)...
Tank member, support part (34c)...
Claims (1)
チュエータ（５）を制御するためのコントロールバルブ
（３３）が、このミッションケース内に配置されると共
に、コントロールバルブ（３３）から排出される戻り油
を回収して、ミッションケース内の伝動軸（１２）の端
部に開放する潤滑油路（１２ａ）に導き、この伝動軸（
１２）に外嵌する部材に対し潤滑油として供給する潤滑
油供給系が形成されている作業車の給油構造であって、
前記戻り油を貯留して前記伝動軸（１２）の端部から前
記潤滑油路（１２ａ）に送るタンク部材（３４）が、伝
動軸（１２）の端部に隣接して設けられ、かつ、このタ
ンク部材（３４）にアイドルギヤ（２３）の支軸（２４
）の一端側を支持する支持部（３４ｃ）が形成されてい
る作業車の給油構造。A control valve (33) for controlling the actuator (5) that uses the lubricating oil of the mission case (3) as hydraulic oil is disposed within the mission case, and the return oil discharged from the control valve (33) is collected and guided to the lubricating oil passage (12a) that opens at the end of the transmission shaft (12) in the transmission case, and then
12) A lubricating oil supply structure for a working vehicle, in which a lubricating oil supply system is formed to supply lubricating oil to a member externally fitted on the lubricating oil supply system,
A tank member (34) that stores the return oil and sends it from the end of the transmission shaft (12) to the lubricating oil path (12a) is provided adjacent to the end of the transmission shaft (12), and The support shaft (24) of the idle gear (23) is attached to this tank member (34).
) A refueling structure for a work vehicle in which a support portion (34c) that supports one end side of the work vehicle is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17558288A JPH0771893B2 (en) | 1988-07-14 | 1988-07-14 | Work vehicle refueling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17558288A JPH0771893B2 (en) | 1988-07-14 | 1988-07-14 | Work vehicle refueling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0228022A true JPH0228022A (en) | 1990-01-30 |
| JPH0771893B2 JPH0771893B2 (en) | 1995-08-02 |
Family
ID=15998608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17558288A Expired - Lifetime JPH0771893B2 (en) | 1988-07-14 | 1988-07-14 | Work vehicle refueling structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0771893B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006266633A (en) * | 2005-03-25 | 2006-10-05 | Kawasaki Thermal Engineering Co Ltd | Heating and cooling operation method by absorption heat pump and absorption heat pump |
| EP1795061A4 (en) * | 2004-08-24 | 2008-07-16 | Yanmar Co Ltd | Hydraulic lift structure |
| CN100458233C (en) * | 2001-04-18 | 2009-02-04 | 本田技研工业株式会社 | Lubricating oil supply device |
-
1988
- 1988-07-14 JP JP17558288A patent/JPH0771893B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458233C (en) * | 2001-04-18 | 2009-02-04 | 本田技研工业株式会社 | Lubricating oil supply device |
| EP1795061A4 (en) * | 2004-08-24 | 2008-07-16 | Yanmar Co Ltd | Hydraulic lift structure |
| US7775151B2 (en) | 2004-08-24 | 2010-08-17 | Yanmar Co., Ltd. | Hydraulic lift structure |
| JP2006266633A (en) * | 2005-03-25 | 2006-10-05 | Kawasaki Thermal Engineering Co Ltd | Heating and cooling operation method by absorption heat pump and absorption heat pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0771893B2 (en) | 1995-08-02 |
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