JPH0771893B2 - Work vehicle refueling structure - Google Patents

Work vehicle refueling structure

Info

Publication number
JPH0771893B2
JPH0771893B2 JP17558288A JP17558288A JPH0771893B2 JP H0771893 B2 JPH0771893 B2 JP H0771893B2 JP 17558288 A JP17558288 A JP 17558288A JP 17558288 A JP17558288 A JP 17558288A JP H0771893 B2 JPH0771893 B2 JP H0771893B2
Authority
JP
Japan
Prior art keywords
transmission shaft
lubricating oil
gear
shaft
oil
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
JP17558288A
Other languages
Japanese (ja)
Other versions
JPH0228022A (en
Inventor
成紀 矢野
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP17558288A priority Critical patent/JPH0771893B2/en
Publication of JPH0228022A publication Critical patent/JPH0228022A/en
Publication of JPH0771893B2 publication Critical patent/JPH0771893B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • A01B63/1006Lifting 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
    • A01B63/1013Lifting 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)

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 field of application] The present invention relates to a control valve for controlling an actuator that uses a lubricating oil of a mission case as an operating oil, the control valve being arranged in the mission case, and A lubricating oil supply system is formed that collects the returned return oil, guides it to the lubricating oil passage that opens to the end of the transmission shaft in the transmission case, and supplies it as lubricating oil to the member that is externally fitted to this transmission shaft. Related to the refueling structure of the working vehicle.

〔従来の技術〕[Conventional technology]

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
バルブからの戻り油を、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 an oil supply structure configured as described at the beginning, there is one shown in Japanese Utility Model Laid-Open No. 60-189665, etc., and in this oil supply structure of the reference, return oil from a control valve for controlling a hydraulic cylinder is provided. A funnel-shaped member provided at the end of the transmission shaft is used to collect and guide it to the lubricating oil passage of the transmission shaft.

〔発明が解決しようとする課題〕[Problems to be Solved by the Invention]

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, in such a structure in which a dedicated member is provided for collecting the return oil from the control valve, not only the number of parts is increased, but also it takes time to manufacture, and 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 a lubrication structure that can supply the return oil to the power transmission shaft without using a dedicated member for recovering the return oil from the control valve by rational modification.

〔課題を解決するための手段〕[Means for Solving the Problems]

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 structure described above, a tank member that stores the return oil and sends it from the end of the transmission shaft to the lubricating oil passage is provided adjacent to the end of the transmission shaft, and The tank member is provided with a support portion for supporting one end side of the spindle of the idle gear, and its action and effect are as follows.

〔作 用〕[Work]

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 features are configured as shown in FIG. 1, for example, the tank member (34) stores the return oil from the control valve (33) and the lubricating oil passage (12a) from the end of the transmission shaft (12). ), And at the same time, the support portion (34c) supports one end side of the spindle (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。
That is, the tank member (34) is used both for storing and guiding the return oil and for supporting the support shaft (24).

〔発明の効果〕〔The invention's effect〕

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 provision of the tank member, an oil supply structure capable of supplying the return oil from the control valve to the lubricating oil passage of the transmission shaft without providing a dedicated member was constructed.

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。
Particularly, in the present invention, since the spindle of the idle gear that does not transmit the rotational power is supported by the tank member, the structure of the supporting portion can be simplified, and the return oil stored in the tank member can be used by the spindle and the idle gear. There is also an effect that it can be supplied as a lubricating oil to a portion between the two.

〔実施例〕〔Example〕

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 with reference to the drawings.

第3図に示すように、車体の前部にエンジン(1)と主
クラッチハウジング(2)とを連結状態で配置すると共
に、主クラッチハウジング(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が構成されている。
As shown in FIG. 3, the engine (1) and the main clutch housing (2) are arranged in a connected state at the front of the vehicle body, and the mission case (3) is connected to the rear surface of the main clutch housing (2). , A hydraulic cylinder (5) (an example of an actuator) for driving and lifting a pair of left and right lift arms (4) is provided above the mission case (3), and a driver seat (6), a steering handle (7), and a pair of left and right front A wheel (8) and a rear wheel (9) are provided to configure an agricultural tractor as an example of a work 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ト操作す
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, a gear shifting mechanism of a synchronizer type, a plurality of hydraulic cylinders that shift-operate the gear shifting mechanism, a plurality of hydraulic cylinders that shift-operate the gear shifting mechanism, a turning operation when the hydraulic cylinders are in operation, and a start operation when the operation is completed. And a hydraulically operated transmission (A) (not shown) having hydraulic clutches each of which is provided, and front wheel speed increasing means for increasing the drive speed of the front wheels (8) when turning the vehicle body. The apparatus (B) is provided, and a dedicated supply system for supplying lubricating oil to the hydraulic clutch is further formed.

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(1
4)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)の作動装置(9
a)に伝えられる。
As shown in FIG. 1, the latter half of the transmission (A) is configured, and the power from the main transmission (not shown) is transmitted to the hydraulic clutch (10) via the first transmission shaft (11). The
Power from the hydraulic clutch (10) is transmitted via the second transmission shaft (12) to the forward / reverse switching device (13) and the auxiliary transmission device (15) externally fitted to the third transmission shaft (14), 3rd transmission shaft (1
The power from the rear wheel (9) is supplied to the rear wheel (9) through the fourth transmission shaft (16) and the drive pinion gear (17).
a).

尚、ミッションケース(3)の底部には第3図に示すPT
O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。
In addition, the PT shown in FIG. 3 is attached to the bottom of the mission case (3).
A first shaft (19) for transmitting power to the O shaft (18), and
The second shaft (20) is arranged, and the first shaft (19) is provided with the one-way clutch (21).

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 described.

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)の入力ギヤ(28)に田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 has a large gear portion that meshes with the output gear (22) and a small gear portion for output. The idle gear (23) is idly supported by the support shaft (24), and the output gear (22)
Power from the idle gear (23), the gear (25) which is idly supported by the fourth transmission shaft (16), the gear (26) which is idly supported by the second shaft (20), and the gear in the mission case. After the gears (27) which are supported by the members are transmitted one by one, they can be set in the input gear (28) of the front wheel speed increasing device (B) attached to the bottom of the transmission case (3). ing.

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、入力ギヤ(28)の方向へシフ
ト部材(30a)を操作することで入力ギヤ(28)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
て操向操作系と連係され、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(8
a)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) operates the output shaft (29) that idle-supports the input gear (28) and the input gear (30a) by operating the shift member (30a) in the direction of the input gear (28). The power from 28) is transmitted to the output shaft (29) as it is, and the shift member (30a) is operated in the opposite direction to press the friction plates,
Clutch mechanism (30) that transmits the acceleration power to the output shaft (29)
And a gear transmission mechanism (31) for increasing the power from the input gear (28). This front wheel speed increasing device (B) shifts the shift member (30a) to the input gear (28a) when the vehicle body travels straight. ), So that the shift member (30a) is operated in the friction plate pressure contact direction during turning, it is linked to the steering operation system via a mechanical operation system (not shown), and the output shaft (29) Power from the differential (8) of the front wheels (8) via the intermediate shaft (32).
The transmission system is formed so that it can be transmitted to a).

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)を制御するコントロールバ
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, the lubricating oil in the mission case is used as the hydraulic oil for the hydraulic cylinder (5),
A control valve (33) for controlling the hydraulic cylinder (5) is arranged in the transmission case, and the return oil from the control valve (33) is used as lubricating oil for the hydraulic clutch (10). ing.

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(33)から案内
管(35)を介して送られる戻り油を受け入れる開口(34
a)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(24)の一端側を受ける支持部(34
c)とが形成されている。
That is, as shown in FIGS. 1 and 2, the second transmission shaft (12) is provided with a lubricating oil passage (12a) along the shaft center,
This lubricating oil passage (12a) opens at the rear shaft end, and a tank member (34) is provided adjacent to this shaft end, and the tank member (34) is guided from the control valve (33). Aperture (34) for receiving return oil sent through pipe (35)
a), a guide portion (34b) for guiding the return oil stored in the tank member (34) to the second transmission shaft (12) side, and one end side of the spindle (24) of the idle gear (23). Support part (34
c) and are 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。
Then, at the time of work, the return oil stored in the tank member (34) is guided to the lubricating oil passage (12a) via the guide portion (34b),
It is configured to be supplied to the friction plate of the hydraulic clutch (10).

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(3
4)の開口(34a)との間には間隙が確保されている。
In addition, in this supply system, the guide pipe (35) and the tank member (3
A gap is secured between the opening (34a) in 4).

〔別実施例〕[Another embodiment]

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 embodiments, the present invention may be, for example, one in which an idle gear is used for forward / reverse switching, and the object to which lubricating oil is supplied may be something other than a hydraulic clutch. 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。
It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

【図面の簡単な説明】[Brief description of 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)……アクチュエー
タ、(12)……伝動軸、(12a)……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 a 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 an agricultural tractor. (3) …… Mission case, (5) …… Actuator, (12) …… Transmission shaft, (12a) …… Lubricating oil passage, (23)
…… Idle gear, (24) …… Support shaft, (33) …… Control valve, (34) …… Tank member, support (34c)
…….

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】ミッションケース(3)の潤滑油を作動油
とするアクチュエータ(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(1
2)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。
1. A control valve (33) for controlling an actuator (5) using a lubricating oil of a mission case (3) as hydraulic oil is arranged in the mission case, and is controlled from the control valve (33). Collect the return oil that is discharged and use the transmission shaft (12) inside the mission case.
Is a lubrication structure for a work vehicle in which a lubrication oil supply system is formed that is guided to a lubrication oil passage (12a) that opens to the end of the ,
The tank member (34) that stores the return oil and sends it from the end of the transmission shaft (12) to the lubricating oil passage (12a) is connected to the transmission shaft (1
A work vehicle provided adjacent to the end of 2) and having a support portion (34c) for supporting one end side of the spindle (24) of the idle gear (23) on the tank member (34). Refueling structure.
JP17558288A 1988-07-14 1988-07-14 Work vehicle refueling structure Expired - Lifetime JPH0771893B2 (en)

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 JPH0228022A (en) 1990-01-30
JPH0771893B2 true 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)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4691265B2 (en) * 2001-04-18 2011-06-01 本田技研工業株式会社 Lubricating oil supply structure
JP4206373B2 (en) 2004-08-24 2009-01-07 ヤンマー株式会社 Hydraulic lift structure
JP4885467B2 (en) * 2005-03-25 2012-02-29 川重冷熱工業株式会社 Absorption heat pump

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