JPH04331825A - Lubricating device for hydraulic clutch - Google Patents
Lubricating device for hydraulic clutchInfo
- Publication number
- JPH04331825A JPH04331825A JP10101591A JP10101591A JPH04331825A JP H04331825 A JPH04331825 A JP H04331825A JP 10101591 A JP10101591 A JP 10101591A JP 10101591 A JP10101591 A JP 10101591A JP H04331825 A JPH04331825 A JP H04331825A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic clutch
- circuit
- clutch
- lubricating oil
- solenoid valve
- 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
- 230000001050 lubricating effect Effects 0.000 title description 4
- 239000010687 lubricating oil Substances 0.000 claims abstract description 12
- 238000005461 lubrication Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、油圧クラッチの潤滑装
置に関し、潤滑油の粘性により生じる連廻りトルクによ
る弊害を防止するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating device for a hydraulic clutch, and is intended to prevent adverse effects caused by continuous rotation torque caused by the viscosity of lubricating oil.
【０００２】0002
【従来の技術】車両、例えば、トラクタの動力伝達系に
、強制潤滑式の油圧クラッチ、例えば、前後進切替又は
高低切替用の油圧クラッチを設け、この油圧クラッチに
後続してギヤ変速装置を備えたものがある。2. Description of the Related Art The power transmission system of a vehicle, for example a tractor, is provided with a forced lubrication type hydraulic clutch, for example, a hydraulic clutch for forward/reverse switching or elevation/lowering switching, and a gear transmission device is provided following this hydraulic clutch. There is something.
【０００３】0003
【発明が解決しようとする課題】しかし、従来の潤滑装
置は、常時潤滑であったため、油の粘性によって連廻り
トルクが発生することがあり、これは、車両の微速動
（クリープ） を招いたり、又、ギヤー変速装置の変速
操作荷重が重くなるという課題があった。特に、この傾
向は低温時に顕著であった。[Problems to be Solved by the Invention] However, since conventional lubrication devices provide constant lubrication, continuous rotation torque may be generated due to the viscosity of the oil.
However, there are problems in that this method causes creep (creep) and that the shift operation load of the gear transmission becomes heavy. This tendency was particularly noticeable at low temperatures.
【０００４】本発明は、油圧クラッチの焼付き等を防止
することは保証しつつ油の粘性による連廻りトルクによ
る弊害を防止したことを目的とする。[0004] An object of the present invention is to prevent harmful effects caused by continuous rotation torque due to the viscosity of oil while ensuring prevention of seizing of the hydraulic clutch.
【０００５】[0005]
【課題を解決するための手段】本発明は、車両の動力伝
達系に、強制潤滑式の油圧クラッチ５ を備えたものに
おいて、前述の目的を達成するために、次の技術的手段
を講じている。すなわち、本発明は、前記油圧クラッチ
５ の操作手段２５に、クラッチ中立を検出する検出手
段３１を備え、前記油圧クラッチ５ への潤滑油の供給
回路２６に絞り２６Ａ を有するバイパス回路２６Ｂ
を設け、前記検出手段３１に連動して前記バイパス回路
２６Ｂ に切替える制御手段２９を備えていることを特
徴とするものである。[Means for Solving the Problems] The present invention provides a vehicle power transmission system equipped with a forced lubrication type hydraulic clutch 5, and in order to achieve the above-mentioned object, the following technical measures are taken. There is. That is, in the present invention, the operating means 25 of the hydraulic clutch 5 is provided with a detection means 31 for detecting clutch neutrality, and the lubricating oil supply circuit 26 to the hydraulic clutch 5 is provided with a bypass circuit 26B having a throttle 26A.
The present invention is characterized in that it includes a control means 29 which switches to the bypass circuit 26B in conjunction with the detection means 31.
【０００６】[0006]
【作用】本発明によれば、操作手段２５を中立にすると
これを検出手段３１で検出し、この検出信号で潤滑系油
路２６に設けた絞り２６Ａ を有するバイパス回路２６
Ｂ に電磁バルブ２９を励磁して切替え潤滑油の供給を
少なくする。一方、操作手段２５が中立以外のときは、
電磁弁２９は消磁され、潤滑油はバイパス回路２６Ｂ
を経由することなく供給され、油圧クラッチ５ のディ
スク等の焼付きは防止する。[Operation] According to the present invention, when the operating means 25 is set to neutral, this is detected by the detecting means 31, and this detection signal is used to connect the bypass circuit 26 having the throttle 26A provided in the lubricating system oil passage 26.
At B, the electromagnetic valve 29 is energized and the supply of lubricating oil is reduced. On the other hand, when the operating means 25 is in a position other than neutral,
The solenoid valve 29 is demagnetized and the lubricating oil is transferred to the bypass circuit 26B.
This prevents the disks of the hydraulic clutch 5 from seizing.
【０００７】[0007]
【実施例】以下、図面を参照して本発明の実施例を詳述
する。図２、３は、エンジン１ に図外の主クラッチを
介して入力軸２ を連結され、出力軸３ がギヤ変速装
置４ に連結された油圧クラッチ５ がトラクタの動力
伝達系 （図では走行系） に組込まれている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In Figures 2 and 3, an input shaft 2 is connected to an engine 1 via a main clutch (not shown), and a hydraulic clutch 5 whose output shaft 3 is connected to a gear transmission 4 is connected to the tractor's power transmission system (in the figure, the drive system ) is incorporated into.
【０００８】図示の油圧クラッチ５ は高速 （図２）
と低速（図３）に切換自在な所謂ハイロー形を示してい
るが、これは前後進切替形であってもよい。油圧クラッ
チ５は、入力軸２ と出力軸３ との軸心上における入
力軸２ に、クラッチボディ６ がキー７ により固定
され、クラッチボディ６ には高速用ピストン８と低速
用ピストン９ とが背合せ状に嵌合されており、それぞ
れクラッチディスク１０，１１ を押圧解除自在として
いる。The illustrated hydraulic clutch 5 has a high speed (FIG. 2)
Although a so-called high-low type is shown in which the speed can be freely switched between high and low speeds (FIG. 3), this may also be a forward/reverse switching type. In the hydraulic clutch 5, a clutch body 6 is fixed to the input shaft 2 on the axis of the input shaft 2 and the output shaft 3 by a key 7, and a high-speed piston 8 and a low-speed piston 9 are attached to the back of the clutch body 6. The clutch discs 10 and 11 are fitted together so that the clutch discs 10 and 11 can be pressed and released.
【０００９】高速側の従動盤１２は出力軸３ に固定さ
れ、低速側の従動盤１３は入力軸１ 上に回転自在に設
けてある。更に、低速側の従動盤１３と一体のボディ１
４と出力軸３ 上のギヤ１５とにそれぞれ咬合するギヤ
１６，１７ を有するカウンタ軸１８が設けられている
。エンジン１ にて駆動されるポンプ１９の送液回路２
０にはクラッチバルブ装置２１が設けられ、このバルブ
装置２１のスプール２２は操作レバー２３とベルクラン
クリンク２４等よりなる操作手段２５によって、図２の
Ｈ側の操作でピストン８ に油圧を作用させて該ピスト
ン８ をバネ８Ａに抗して摺動することで図２の矢示の
如く入力軸２と出力軸３ とを連結した高速と、Ｌ側の
操作でピストン９ に油圧を作用させて該ピストン９
をバネ９Ａに抗して摺動することで図３の矢示の如くカ
ウンタ軸１８を経由する低速にそれぞれ切換自在とされ
ている。The driven plate 12 on the high speed side is fixed to the output shaft 3, and the driven plate 13 on the low speed side is rotatably provided on the input shaft 1. Furthermore, the body 1 integrated with the driven plate 13 on the low speed side
A countershaft 18 is provided having gears 16 and 17 that mesh with the gear 15 on the output shaft 3 and the output shaft 3, respectively. Liquid feeding circuit 2 of pump 19 driven by engine 1
0 is provided with a clutch valve device 21, and a spool 22 of this valve device 21 applies hydraulic pressure to the piston 8 when operated on the H side in FIG. By sliding the piston 8 against the spring 8A, the input shaft 2 and the output shaft 3 are connected at high speed as shown by the arrow in FIG. 2, and hydraulic pressure is applied to the piston 9 by operating on the L side. The piston 9
By sliding against the spring 9A, the speed can be changed to a lower speed via the counter shaft 18 as shown by the arrow in FIG.
【００１０】送液回路２０には図１に示す潤滑回路２６
が設けられ、この潤滑回路２６にはパイロット弁２７、
チェック弁２８とともに電磁バルブ２９が設けてあり、
該電磁バルブ２９をリンケージしているときは油圧クラ
ッチ５ の潤滑部 （クラッチディスク等） へ潤滑油
を強制的に送液している回路とともに絞り２６Ａ を有
するバイパス回路２６Ｂ を備えている。The liquid feeding circuit 20 includes a lubrication circuit 26 shown in FIG.
This lubrication circuit 26 is provided with a pilot valve 27,
A solenoid valve 29 is provided together with the check valve 28.
When the electromagnetic valve 29 is linked, a bypass circuit 26B having a throttle 26A is provided as well as a circuit for forcibly sending lubricating oil to the lubricating portion (clutch disk, etc.) of the hydraulic clutch 5.
【００１１】操作手段２５におけるＨＬ検出器３０とは
別に、油圧クラッチ５ の中立検出器３１が設けてあり
、この検出器３１の検出信号で電磁バルブ２９を励磁さ
せて前記絞り２６Ａを有するバイパス回路２６Ｂ に連
結する制御部２９Ａ に切換可能としており、ここに、
検出器３１は検出手段を、バルブ２９は制御手段とされ
、バッテリ３２に直列に接続されている。Separately from the HL detector 30 in the operating means 25, a neutral detector 31 for the hydraulic clutch 5 is provided, and a detection signal from this detector 31 excites the electromagnetic valve 29 to activate the bypass circuit having the aperture 26A. It is possible to switch to the control section 29A connected to the control section 26B, and here,
The detector 31 serves as a detection means, the valve 29 serves as a control means, and are connected in series to a battery 32.
【００１２】従って、以上の実施例において、操作手段
２５を高低いずれかに切換したときは、ピストン８，９
のいずれかに作動油圧を送り、一方を駆動するととも
に必要箇所の潤滑がなされている。そして、操作手段２
５を中立にするとこれを検出器３１で検出し、その信号
で電磁バルブ２９を遮断部２９Ａ に切換えて絞り２６
Ａ を介してバイパス回路２６Ｂ を経由して油圧クラ
ッチ５ の必要域に少量の油を送り油の粘性による連廻
りトルクをおさえ、ギヤ変速装置４ の慣性質量を抑え
るとともに、車両のクリープ動を防止する。Therefore, in the above embodiment, when the operating means 25 is switched to either the high or low position, the pistons 8, 9
Hydraulic pressure is sent to one of the two to drive one and lubricate the necessary locations. And operation means 2
5 is set to neutral, this is detected by the detector 31, and the solenoid valve 29 is switched to the cutoff section 29A using the signal, and the aperture 26 is switched to the neutral position.
A small amount of oil is sent to the necessary area of the hydraulic clutch 5 via the bypass circuit 26B to suppress the continuous rotation torque due to the viscosity of the oil, suppress the inertial mass of the gear transmission 4, and prevent creep movement of the vehicle. do.
【００１３】なお、以上の実施例において、操作レバー
２３のグリップ部に、所謂タッチセンサー付スイッチに
よる検出器を設けてもよい。In the embodiments described above, a detector such as a so-called switch with a touch sensor may be provided on the grip portion of the operating lever 23.
【００１４】[0014]
【発明の効果】以上詳述した通り、本発明によれば、油
圧クラッチの作動時において潤滑必要域では強制潤滑を
しつつ焼付き防止等を図れるにも拘らず、油圧クラッチ
の中立時においては潤滑油を少量だけ送液することによ
って連廻りを抑制し、連廻りによる種々の弊害を防止で
き、これは特に、低温時において顕著な利点を奏する。[Effects of the Invention] As detailed above, according to the present invention, although it is possible to prevent seizure while performing forced lubrication in the region where lubrication is required when the hydraulic clutch is in operation, when the hydraulic clutch is in the neutral state, By feeding only a small amount of lubricating oil, continuous circulation can be suppressed and various adverse effects caused by continuous circulation can be prevented, and this is particularly advantageous at low temperatures.
【図１】本発明実施例の構成図である。FIG. 1 is a configuration diagram of an embodiment of the present invention.
【図２】高速時の構成図である。FIG. 2 is a configuration diagram at high speed.
【図３】低速時の構成図である。FIG. 3 is a configuration diagram at low speed.
５ 油圧クラッチ ２５ 操作手段 ２６ 潤滑油供給回路 ２６Ａ 絞り ２６Ｂ バイパス回路 ２９ 制御手段 ３１ 中立検出手段 5 Hydraulic clutch 25 Operation means 26 Lubricating oil supply circuit 26A aperture 26B bypass circuit 29 Control means 31 Neutral detection means
Claims (1)
圧クラッチ５ を備えたものにおいて、前記油圧クラッ
チ（５） の操作手段（２５）に、クラッチ中立を検出
する検出手段（３１）を備え、前記油圧クラッチ（５）
への潤滑油の供給回路（２６）に絞り（２６Ａ） を
有するバイパス回路（２６Ｂ） を設け、前記検出手段
（３１）に連動して前記バイパス回路（２６Ｂ） に切
替える制御手段（２９）を備えていることを特徴とする
油圧クラッチの潤滑装置。1. In a vehicle power transmission system equipped with a forced lubrication type hydraulic clutch 5, the operating means (25) of the hydraulic clutch (5) is provided with a detection means (31) for detecting clutch neutrality. and the hydraulic clutch (5).
A bypass circuit (26B) having a throttle (26A) is provided in the lubricating oil supply circuit (26) to the lubricating oil supply circuit (26), and a control means (29) is provided for switching to the bypass circuit (26B) in conjunction with the detection means (31). A hydraulic clutch lubrication device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10101591A JPH04331825A (en) | 1991-05-02 | 1991-05-02 | Lubricating device for hydraulic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10101591A JPH04331825A (en) | 1991-05-02 | 1991-05-02 | Lubricating device for hydraulic clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04331825A true JPH04331825A (en) | 1992-11-19 |
Family
ID=14289391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10101591A Pending JPH04331825A (en) | 1991-05-02 | 1991-05-02 | Lubricating device for hydraulic clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04331825A (en) |
-
1991
- 1991-05-02 JP JP10101591A patent/JPH04331825A/en active Pending
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