JPH02225865A - Lubrication device of power takeoff mechanism - Google Patents

Lubrication device of power takeoff mechanism

Info

Publication number
JPH02225865A
JPH02225865A JP4703689A JP4703689A JPH02225865A JP H02225865 A JPH02225865 A JP H02225865A JP 4703689 A JP4703689 A JP 4703689A JP 4703689 A JP4703689 A JP 4703689A JP H02225865 A JPH02225865 A JP H02225865A
Authority
JP
Japan
Prior art keywords
oil
pressure
oil passage
regulating valve
pressure regulating
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
Application number
JP4703689A
Other languages
Japanese (ja)
Other versions
JP2762518B2 (en
Inventor
Toshiaki Ishiguro
稔昌 石黒
Susumu Kobayashi
進 小林
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.)
Aisin Corp
Original Assignee
Aisin Seiki Co 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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP1047036A priority Critical patent/JP2762518B2/en
Publication of JPH02225865A publication Critical patent/JPH02225865A/en
Application granted granted Critical
Publication of JP2762518B2 publication Critical patent/JP2762518B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

PURPOSE:To make it possible to feed the lubricating oil sufficiently when a power takeoff mechanism is operated by connecting the first oil passage to the second power regulation valve, providing an electromagnetic valve to exhaust the control pressure in the first oil passage, and connecting a lubrication regulator valve to the first and the second oil passages. CONSTITUTION:When a power takeoff mechanism is under the condition of operation, the oil pressure is fed to the lower oil chamber 15a of a secondary regulator valve 15 through the first oil passage 20, and since the pressure acting to a land 15e is larger than the pressure acting to a land 15f, a spool 15b is slided to the upper side. Following this operation, the end of the spool 15b is contacted to the end of a spool 15c to push up the spool 15c, a land 16d is moved to the upper side to link the second and the third oil passages 14 and 17, and the oil feeding amount to a lubrication pressure regulating valve 19 is increased. The lubricating oil is fed to the lubrication circuit PTOlub of the power takeoff mechanism through ports 19d and 19e to which the lubrication pressure regulating valve 19 is linked.

Description

【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明は一般車両、産業用の大型車両あるいは大型特殊
車両に搭載されている変速機の潤滑装置に係わり、より
詳細には変速機のパワーティクオフ機構への潤滑油量を
制御する発明に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a lubricating device for a transmission mounted on a general vehicle, a large industrial vehicle, or a large special vehicle. relates to an invention for controlling the amount of lubricating oil to a power take-off mechanism of a transmission.

（従来の技術） 本発明に関する従来の技術を第３図に示す。(Conventional technology) A conventional technique related to the present invention is shown in FIG.

この従来技術では、オイルポンプ１０から出力された圧
油は、油路１１を介して第１の調圧弁であるプライマリ
−レギュレータバルブ１３に導かれる。このとき、オイ
ルポンプ１０によって過剰に加圧された圧油は、レリー
フバルブ１２によって油路１１の外部に排出できるよう
になっている。In this prior art, pressure oil output from an oil pump 10 is guided through an oil passage 11 to a primary regulator valve 13, which is a first pressure regulating valve. At this time, the pressure oil that is excessively pressurized by the oil pump 10 can be discharged to the outside of the oil passage 11 by the relief valve 12.

前記プライマリ−レギュレータバルブ１３によつて調圧
された圧油は、第２の油路■４を介して第２の調圧弁で
あるセカダリーレギュレータバルブ１５に入力されると
ともに、一部は分岐してトルクコンバータＴ／Ｃに入力
されている。そして、前記セカダリーレギュレータバル
ブ１５に入力された圧油は、オリフィス弁１６を介して
第３の油路１７に連通している。前記第３の油路１７は
パワーティクオフ機構の潤滑回路ＰＴＯｊ２ｕｂ。The pressure oil whose pressure is regulated by the primary regulator valve 13 is input to the secondary regulator valve 15, which is a second pressure regulating valve, via the second oil passage 4, and a part of it is branched. and is input to the torque converter T/C. The pressure oil input to the secondary regulator valve 15 communicates with a third oil passage 17 via an orifice valve 16. The third oil passage 17 is a lubrication circuit PTOj2ub of the power take-off mechanism.

に接続されると同時に、変速機の潤滑回路Ｔ／Ｍｆｆｉ
ｕｂ、　　にも接続されている。At the same time, the transmission lubrication circuit T/Mffi
It is also connected to ub.

そして、前記セカダリーレギュレータバルブ１５から各
潤滑回路（ＰＴＯｆ　ｕ　ｂ、およびＴ／Ｍｆｕｂ、）
への潤滑油の供給量は以下のようにして決定される。即
ち、プライマリレギュレータバルブ１３の下部ボー）１
３ａから出力する第４の油路１８を介して出力される圧
油がセカンダリ−レギュレータバルブ１５に作用して、
スプール１５、〕を上下動させることによって、第２の
油路１４と第３の油路１７との連通度合が調節させるこ
とによって決定されるというものである。Then, from the secondary regulator valve 15 to each lubrication circuit (PTOfub, and T/Mfub,)
The amount of lubricating oil supplied to is determined as follows. That is, the lower bow of the primary regulator valve 13)1
Pressure oil outputted from the fourth oil passage 18 outputted from 3a acts on the secondary regulator valve 15,
By moving the spool 15 up and down, the degree of communication between the second oil passage 14 and the third oil passage 17 is adjusted and determined.

（発明が解決しようとする課題） このような従来技術による油圧回路であると、自動変速
機にパワーティクオフ機構が取り付けられた場合衣のよ
うな問題点があった。即ち、油圧回路に対する潤滑油の
供給量はパワーティクオフ機構が装備されていない時と
同量であるため、パワーティクオフ機構作動時には、変
速機の潤滑回路Ｔ／Ｍｊ２ｕｂ、供給される潤滑油の一
部がパワーティクオフ機構の潤滑回路ＰＴＯＩ　ｕ　ｂ
、へ供給されることになって、変速機の潤滑回路Ｔ／Ｍ
ｌｕｂ、への供給油量を十分に確保できないという問題
点があった。(Problems to be Solved by the Invention) The hydraulic circuit according to the prior art has the same problems when a power take-off mechanism is attached to an automatic transmission. That is, since the amount of lubricant supplied to the hydraulic circuit is the same as when the power take-off mechanism is not installed, when the power take-off mechanism is activated, the lubricant circuit T/Mj2ub of the transmission and the amount of lubricant supplied are Part of the lubrication circuit is a power take-off mechanism PTOI u b
, the transmission lubrication circuit T/M.
There was a problem in that a sufficient amount of oil could not be supplied to the lub.

本発明では、パワーティクオフ機構が作動しているとき
、当該パワーティクオフ機構が必要とする潤滑油量を供
給可能にする油圧回路を提供することを技術的課題とす
る。A technical object of the present invention is to provide a hydraulic circuit that can supply the amount of lubricating oil required by the power take-off mechanism when the power take-off mechanism is in operation.

〔発明の構成］ （課題を解決するための手段） このような技術的課題を解決するために講じた技術的手
段は、油圧源からの圧油を調圧してパワーティクオフ機
構の潤滑回路への潤滑油の給配を制御する制御圧を発生
するとともに前記潤滑回路への圧油を出力する第１の調
圧弁と、該第１の調圧弁からの出力圧油を調圧して前記
パワーティクオフ機構の潤滑回路に潤滑油を供給する第
２の調圧弁と、前記制御圧が人力されて前記パワーティ
ク；ｔフ機構の潤滑回路への潤滑油の給配を断接する潤
滑調圧弁と、前記第１の調圧弁から出力して前記制御圧
を導く第１の油路と、前記第１の調圧弁と前記第２の調
圧弁とを接続する第２の油路と、前記第２の調圧弁と前
記潤滑調圧弁とを接続する第３の油路からなるパワーテ
ィクオフ機構の潤滑装置において、前記第１の油路を前
記第２の調圧弁に接続するとともに前記第１の油路内の
制御圧を前記パワーティクオフ機構の作動に追従して外
部に排出可能とする電磁弁を前記第１の油路中に配設し
さらに前記潤滑調圧弁を前記第１の油路および前記第３
の油路に接続させた、ことである。[Structure of the invention] (Means for solving the problem) The technical means taken to solve the above technical problem is to adjust the pressure of pressure oil from a hydraulic source and supply it to the lubrication circuit of the power take-off mechanism. a first pressure regulating valve that generates a control pressure to control the supply and distribution of lubricating oil to the lubricating circuit and outputs pressure oil to the lubrication circuit; a second pressure regulating valve that supplies lubricating oil to the lubricating circuit of the power-off mechanism; and a lubricating pressure regulating valve that connects and disconnects the supply of lubricating oil to the lubricating circuit of the power-off mechanism when the control pressure is manually applied. a first oil passage that outputs from the first pressure regulating valve and guides the control pressure; a second oil passage connecting the first pressure regulating valve and the second pressure regulating valve; and a second oil passage that connects the first pressure regulating valve and the second pressure regulating valve; A lubricating device for a power take-off mechanism including a third oil passage connecting a pressure regulating valve and the lubrication pressure regulating valve, wherein the first oil passage is connected to the second pressure regulating valve and the first oil passage A solenoid valve is disposed in the first oil passage, and the lubrication pressure regulating valve is disposed in the first oil passage and the control pressure can be discharged to the outside in accordance with the operation of the power take-off mechanism. Third
This means that it was connected to the oil line.

（作用） このような技術的手段を講じたことによって、パワーテ
ィクオフ機構が作動している場合であっても、当該パワ
ーティクオフ機構が必要とする潤滑油量を供給できるよ
うになった。(Function) By taking such technical measures, even when the power take-off mechanism is operating, it is now possible to supply the amount of lubricating oil required by the power take-off mechanism.

（実施例） 以下、本発明の技術的手段を講じた一実施例について図
面を参照して説明する。(Example) Hereinafter, an example in which the technical means of the present invention are implemented will be described with reference to the drawings.

第１図は、本発明による自動変速機の油圧回路図である
。FIG. 1 is a hydraulic circuit diagram of an automatic transmission according to the present invention.

油圧源となるオイルポンプ１０、第１の調圧となるプラ
イマリ−レギュレータバルブ１３および第２の調圧弁と
なるセカダリーレギュレータバルブ１５の圧油を供給す
る部分については、従来技術の欄の説明と同一であるた
め、その説明は省略する。尚、図面中間一部分について
は同一番号符号を付与する。The oil pump 10 serving as the hydraulic pressure source, the primary regulator valve 13 serving as the first pressure regulating valve, and the secondary regulator valve 15 serving as the second pressure regulating valve, which supply pressure oil, are as explained in the prior art column. Since they are the same, their explanation will be omitted. Note that the same numbers and symbols are given to the middle part of the drawings.

本発明では、第３の油路１７に接続する潤滑調圧弁１９
を設けることと、プライマリ−レギュレータバルブＬ３
の上部ボート１３ｂから出力されている第１の油路２０
に前記潤滑調圧弁１９の上部ボート１９ａが連通ずる各
油路を設けている。In the present invention, the lubrication pressure regulating valve 19 connected to the third oil passage 17
and primary regulator valve L3.
The first oil passage 20 outputted from the upper boat 13b of
Each oil passage through which the upper boat 19a of the lubrication pressure regulating valve 19 communicates is provided.

さらに、前記第１の油路２０にはパワーティクオフ機構
（ＰＴＯ機構）の作動スイッチ２２に連動して開閉動作
する電磁弁２３が配設されている。Further, a solenoid valve 23 is disposed in the first oil passage 20 and is opened and closed in conjunction with an operation switch 22 of a power take-off mechanism (PTO mechanism).

前記電磁弁２３には、ノーマルオブーンタイプ（非通電
状態では解放）の電磁弁が使用されている。The solenoid valve 23 is a normal-object type solenoid valve (opened in a non-energized state).

パワーティクオフ機構の作動スイッチ２２が開かれた状
態では、電磁弁２３は非通電状態であるため第１の油路
２０内の圧油を油路外に排出する、このとき潤滑調圧弁
１９のスプール１９１）は図中左側に示したように」二
側に位置している。この状態ではスプール弓９ｂのラン
ド１９ｅがボート！９ｄとボート１９ｅを閉塞するため
パワーティクオフ機構の潤滑回路りＴＯｆｆｉｕｂ、に
は潤滑油は供給されない。When the activation switch 22 of the power take-off mechanism is opened, the electromagnetic valve 23 is in a non-energized state, so that the pressure oil in the first oil passage 20 is discharged to the outside of the oil passage. The spool 191) is located on the second side as shown on the left side in the figure. In this state, land 19e of spool bow 9b is the boat! 9d and boat 19e, no lubricating oil is supplied to the lubricating circuit Toffiub of the power take-off mechanism.

一方、パワーティクオフ機構の作動スイッチ２２が閉じ
られたとき、電磁弁２３は通電状態になるため油圧回路
を閉塞して、第１の油路２０内の圧油は排出されない、
！Ｉ］ち、潤滑調圧弁１９のスプール１９ｂは図中右側
に示したように下側に位置しているため、ボート１９ｄ
とボート１９ｅが連通してパワーティクオフ機構の潤滑
回路ＰＴＯｆｕｂ、に潤滑油が供給されるようになる。On the other hand, when the activation switch 22 of the power take-off mechanism is closed, the electromagnetic valve 23 becomes energized, thereby blocking the hydraulic circuit and preventing the pressure oil in the first oil path 20 from being discharged.
! I] Since the spool 19b of the lubrication pressure regulating valve 19 is located on the lower side as shown on the right side of the figure, the boat 19d
The boat 19e communicates with the boat 19e, and lubricating oil is supplied to the lubrication circuit PTOfub of the power take-off mechanism.

また、パワーティクオフ機構が作動状態であるときには
、第１の油路２ｏを介してセヵダリー［・ギュレータバ
ルブ１５の下部油室１５ａに圧油が供給される。そして
、ランド１５ｆに作用する１７：カがランド１５ｅに作
用する圧力よりも大きいため、スプール１５ｂが図中上
部に摺動イる。この作動に伴って、スプール］、　５　
ｂの端部はスプール１５ｃの端部に当接してスプール１
５ｃを上部に押圧する。即ち、ランド１５ｄは上部に移
動するため、第２の油路１４と第３の油路１７とを連通
させて潤滑調整弁１９今の供給油量を増大させるように
なる。When the power take-off mechanism is in operation, pressure oil is supplied to the lower oil chamber 15a of the secondary regulator valve 15 via the first oil passage 2o. Since the force 17 acting on the land 15f is greater than the pressure acting on the land 15e, the spool 15b slides upward in the figure. Along with this operation, the spool], 5
The end of spool 15c contacts the end of spool 15c.
Press 5c to the top. That is, since the land 15d moves upward, the second oil passage 14 and the third oil passage 17 are communicated with each other, thereby increasing the amount of oil currently supplied to the lubrication regulating valve 19.

第２図は、第２の調圧弁であるセヵダリーレギュレータ
バルブ１５内で制ｆ１１される圧油とスロットル開度と
の関係を示し、ている。■はスロットル圧の変化、■は
パワーティクオフ機構が作動していない状態での油圧変
化、■はパワーティクオフ機構が作動している状態での
圧油変化をそれぞれ示している。FIG. 2 shows the relationship between the pressure oil controlled in the secondary regulator valve 15, which is the second pressure regulating valve, and the throttle opening. ■ indicates a change in throttle pressure, ■ indicates a change in oil pressure when the power tick-off mechanism is not operating, and ■ indicates a change in pressure oil when the power tick-off mechanism is operating.

〔発明の効果〕〔Effect of the invention〕

本発明では、パワーティクオフ機構作動昧寺に（ま、当
該パワーティクオフ機構の潤滑回路が必要とする潤滑油
量を十分に供給できるようになり実用、ト多大な効果を
奏する。In the present invention, it is possible to supply a sufficient amount of lubricating oil required by the lubrication circuit of the power take-off mechanism during operation of the power take-off mechanism, which has a great practical effect.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明による自動変速機の油圧回路図を示し、
第２図は第２の調圧弁内の油圧の変化とスロットル開度
との関係を示す図、第３図は従来技術による自動変速機
の油圧回路図をそれぞれ示している。 油圧源・・・ 第１の調圧弁 第２の調圧弁 潤滑調圧弁・ 第１の油路・ 第２の油路・ 第３の油路・ 電磁弁・・・ １３． １５． １９． ２０． １４． １７、 ζFIG. 1 shows a hydraulic circuit diagram of an automatic transmission according to the present invention,
FIG. 2 is a diagram showing the relationship between the change in oil pressure in the second pressure regulating valve and the throttle opening, and FIG. 3 is a hydraulic circuit diagram of an automatic transmission according to the prior art. Hydraulic source... First pressure regulating valve, second pressure regulating valve, lubrication pressure regulating valve, first oil passage, second oil passage, third oil passage, solenoid valve... 13. 15. 19. 20. 14. 17, ζ

Claims (1)

【特許請求の範囲】[Claims] 油圧源からの圧油を調圧してパワーテイクオフ機構の潤
滑回路への潤滑油の給配を制御する制御圧を発生すると
ともに前記潤滑回路への圧油を出力する第１の調圧弁と
、該第１の調圧弁からの出力圧油を調圧して前記パワー
テイクオフ機構の潤滑回路に潤滑油を供給する第２の調
圧弁と、前記制御圧が入力されて前記パワーテイクオフ
機構の潤滑回路への潤滑油の給配を断接する潤滑調圧弁
と、前記第１の調圧弁から出力して前記制御圧を導く第
１の油路と、前記第１の調圧弁と前記第２の調圧弁とを
接続する第２の油路と、前記第２の調圧弁と前記潤滑調
圧弁とを接続する第３の油路からなるパワーテイクオフ
機構の潤滑装置において、前記第１の油路を前記第２の
調圧弁に接続するとともに前記第１の油路内の制御圧を
前記パワーテイクオフ機構の作動に追従して外部に排出
可能とする電磁弁を前記第１の油路中に配設しさらに前
記潤滑調圧弁を前記第１の油路および前記第３の油路に
接続させた、ことを特徴とするパワーテイクオフ機構の
潤滑装置。a first pressure regulating valve that regulates the pressure oil from the hydraulic source to generate a control pressure for controlling the supply and distribution of the lubricating oil to the lubrication circuit of the power take-off mechanism, and outputs the pressure oil to the lubrication circuit; a second pressure regulating valve that regulates the output pressure oil from the first pressure regulating valve and supplies the lubricating oil to the lubrication circuit of the power take-off mechanism; A lubrication pressure regulating valve that connects and disconnects the supply and distribution of lubricating oil, a first oil passage that outputs from the first pressure regulating valve and guides the control pressure, and the first pressure regulating valve and the second pressure regulating valve. In a lubricating device for a power take-off mechanism, the first oil passage is connected to the second oil passage, and the second oil passage is connected to the second oil passage, and the second oil passage is connected to the second oil passage. A solenoid valve connected to the pressure regulating valve and capable of discharging the control pressure in the first oil passage to the outside in accordance with the operation of the power take-off mechanism is disposed in the first oil passage, and the lubrication A lubricating device for a power take-off mechanism, characterized in that a pressure regulating valve is connected to the first oil passage and the third oil passage.
JP1047036A 1989-02-28 1989-02-28 Lubricating device for power take-off mechanism Expired - Fee Related JP2762518B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1047036A JP2762518B2 (en) 1989-02-28 1989-02-28 Lubricating device for power take-off mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1047036A JP2762518B2 (en) 1989-02-28 1989-02-28 Lubricating device for power take-off mechanism

Publications (2)

Publication Number Publication Date
JPH02225865A true JPH02225865A (en) 1990-09-07
JP2762518B2 JP2762518B2 (en) 1998-06-04

Family

ID=12763944

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1047036A Expired - Fee Related JP2762518B2 (en) 1989-02-28 1989-02-28 Lubricating device for power take-off mechanism

Country Status (1)

Country Link
JP (1) JP2762518B2 (en)

Also Published As

Publication number Publication date
JP2762518B2 (en) 1998-06-04

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