JPH077632Y2 - Wet multi-plate brake - Google Patents

Wet multi-plate brake

Info

Publication number
JPH077632Y2
JPH077632Y2 JP1988001420U JP142088U JPH077632Y2 JP H077632 Y2 JPH077632 Y2 JP H077632Y2 JP 1988001420 U JP1988001420 U JP 1988001420U JP 142088 U JP142088 U JP 142088U JP H077632 Y2 JPH077632 Y2 JP H077632Y2
Authority
JP
Japan
Prior art keywords
brake
friction plate
oil
wet multi
shift
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
JP1988001420U
Other languages
Japanese (ja)
Other versions
JPH01106642U (en
Inventor
和嘉 平田
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 JP1988001420U priority Critical patent/JPH077632Y2/en
Publication of JPH01106642U publication Critical patent/JPH01106642U/ja
Application granted granted Critical
Publication of JPH077632Y2 publication Critical patent/JPH077632Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、ブレーキ軸にシフトボスを嵌合し、このシフ
トボスに可動側摩擦板をスプライン嵌合するとともに、
ドラム状のブレーキハウジングに形成した嵌合溝に固定
側摩擦板の外周に設けた突部を嵌合してある湿式多板ブ
レーキに関する。
[Detailed Description of the Invention] [Industrial field of application] The present invention fits a shift boss to a brake shaft, and a movable side friction plate is spline-fitted to the shift boss.
The present invention relates to a wet multi-disc brake in which a protrusion provided on the outer circumference of a fixed-side friction plate is fitted in a fitting groove formed in a drum-shaped brake housing.

〔従来の技術〕[Conventional technology]

係る湿式多板ブレーキは、可動側摩擦板と固定側摩擦板
とを圧接させることによってブレーキオンとなり、その
圧接を解除することによってブレーキオフとなる。そし
て、圧接を解除した際に、可動側摩擦板と固定側摩擦板
とが確実に離間し、両摩擦板間に発生する摩擦力が極力
小さくなるように、ブレーキハウジング内にオイルを入
れることでブレーキのオン・オフを円滑に行えるように
してある。
The wet multi-disc brake is turned on by bringing the movable friction plate and the fixed friction plate into pressure contact with each other, and is released by releasing the pressure contact. Then, when the pressure contact is released, the movable side friction plate and the fixed side friction plate are reliably separated from each other, and oil is introduced into the brake housing so that the frictional force generated between both friction plates is minimized. The brakes can be turned on and off smoothly.

〔考案が解決しようとする課題〕[Problems to be solved by the device]

従って、ブレーキをオフにした際には、可動側摩擦板と
固定側摩擦板の全ての摩擦面にオイルが行き亘ることが
肝要である。しかしながら、一般の多板式ブレーキは、
ドラム状のブレーキハウジングに内装されているから、
ブレーキハウジングの内奥にまでオイルが行き亘り難か
った。
Therefore, when the brake is turned off, it is important that the oil is spread over all the friction surfaces of the movable friction plate and the fixed friction plate. However, general multi-plate brakes
Since it is installed in the drum-shaped brake housing,
It was difficult for the oil to reach the inside of the brake housing.

即ち、オイルは、可動側摩擦板に形成された油穴やブレ
ーキハウジングの嵌合溝と両摩擦板間を通って徐々に行
き亘っていくから、その量は常に不足気味であり、ブレ
ーキをオフにした際に奥の可動側摩擦板と固定側摩擦板
の摩擦面の間に即座に入り込んで離間を補助することが
できず、それがブレーキオフ時の動力ロスを招く一因と
なっていた。
That is, since the oil gradually spreads through the oil holes formed in the movable side friction plate and the fitting groove of the brake housing and between both friction plates, the amount of oil is always insufficient, and the brake is turned off. When it was set, it was not possible to immediately enter between the friction surface of the movable side friction plate and the fixed side friction plate to assist the separation, which was a cause of power loss at the time of brake off. .

本考案は、このような実情に着目して創案されたもので
あり、その目的は、オイルの行き亘りを良くし、ブレー
キオフ時に生ずる動力ロスを小さくできるようにすると
ともに、その為の構造を簡単に得る点にある。
The present invention was devised with this situation in mind, and its purpose is to improve the oil distribution and to reduce the power loss that occurs when the brake is off, and to provide a structure therefor. The point is easy to get.

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

本考案の特徴構成は、ブレーキハウジング側に設けた摩
擦板支持用の圧接面に、前記嵌合溝とハウジング内部と
を連通する油流通溝を設けた点にあり、その作用・効果
は次の通りである。
The characteristic configuration of the present invention is that an oil flow groove for communicating the fitting groove with the inside of the housing is provided on the pressure contact surface for supporting the friction plate provided on the brake housing side. The action and effect thereof are as follows. On the street.

〔作用〕[Action]

つまり、可動側摩擦板と固定側摩擦板とが圧接されたブ
レーキオン状態でも、オイルはブレーキハウジングの嵌
合溝から摩擦板支持用の圧接面に設けられた油流通溝を
通ってブレーキハウジングの内に入り込めるので、ブレ
ーキハウジングの内奥に行き亘る量が増大するのであ
る。
That is, even in the brake-on state in which the movable side friction plate and the fixed side friction plate are in pressure contact with each other, the oil flows from the fitting groove of the brake housing through the oil circulation groove provided in the pressure contact surface for supporting the friction plate of the brake housing. Since it can enter the inside, the amount that reaches the inside of the brake housing increases.

〔考案の効果〕[Effect of device]

その結果、ブレーキをオフにした際にオイルが奥の可動
側摩擦板と固定側摩擦板の摩擦面に即座に入り込んで離
間を補助できるようになり、動力ロスが小さくなった。
As a result, when the brake is turned off, the oil can immediately enter the friction surfaces of the movable side friction plate and the fixed side friction plate in the back to assist the separation, and the power loss is reduced.

また、油流通溝を嵌合溝と連通する状態で設けてあるか
ら、嵌合溝の形成と同時に油流通溝の溝加工が行え、例
えば、油流通溝を形成するに当たって、可動側摩擦板ま
たは固定側摩擦板の何れか一方の摩擦面に油流通溝を形
成する場合に比して、摩擦板の厚肉化を避けることがで
き、また、摩擦板の磨耗によって溝深さが変化してオイ
ルの流動性能が低下することがなく、さらに、専用の溝
加工工程を必要とすることがない。
Further, since the oil flow groove is provided in a state of communicating with the fitting groove, the groove processing of the oil flow groove can be performed simultaneously with the formation of the fitting groove. For example, in forming the oil flow groove, the movable side friction plate or It is possible to avoid thickening the friction plate compared to the case where the oil flow groove is formed on either one of the fixed friction plates, and the groove depth changes due to wear of the friction plate. The fluidity of the oil does not deteriorate, and no special groove processing step is required.

〔実施例〕〔Example〕

以下、本考案の実施例を図面に基づいて説明する。第3
図にコンバインの走行系の一部が示されている。
Embodiments of the present invention will be described below with reference to the drawings. Third
A part of the traveling system of the combine is shown in the figure.

ミッションケース(M)に架設されたブレーキ軸として
の支軸(1)の中央に入力ギヤ(2)を固定し、この入
力ギヤ(2)の左右側方に一組のシフトボス(3L),
(3R)をシフト自在に遊嵌するとともに、これらシフト
ボス(3L),(3R)の内側にクラッチ(CL),(CR)
を、外側に湿式多板ブレーキ(BL),(BR)を配備して
ある。
An input gear (2) is fixed to the center of a support shaft (1) as a brake shaft that is erected on a mission case (M), and a pair of shift bosses (3L) are arranged on the left and right sides of the input gear (2).
The (3R) is loosely fitted and the clutches (CL), (CR) are placed inside these shift bosses (3L), (3R).
The wet multi-plate brakes (BL) and (BR) are provided on the outside.

詳述すると、入力ギヤ(2)のボス部に形成された爪
(2a)と、シフトボス(3L),(3R)の入力ギヤ(2)
側の端部に形成された爪(4L),(4R)とを、シフトボ
ス(3L),(3R)の入力ギヤ(2)側へのシフトによっ
て咬合可能にするとともに、シフトボス(3L),(3R)
の入力ギヤ(2)側の外周部に形成された出力ギヤ(5
L),(5R)を、並設の伝動軸(6)に遊嵌された左右
の伝動ギヤ(7L),(7R)にそれぞれ咬合させて前記ク
ラッチ(CL),(CR)を構成してある。
More specifically, the claw (2a) formed on the boss portion of the input gear (2) and the input gear (2) of the shift bosses (3L) and (3R)
The claws (4L) and (4R) formed at the end on the side can be engaged by shifting the shift bosses (3L) and (3R) to the input gear (2) side, and the shift bosses (3L) and (4L) can be engaged. 3R)
Of the output gear (5
L) and (5R) are engaged with left and right transmission gears (7L) and (7R) loosely fitted to the transmission shafts (6) arranged side by side to form the clutches (CL) and (CR). is there.

また、前記シフトボス(3L),(3R)のミッションケー
ス(M)の内壁側の外周部に多数の可動側摩擦板(8)
をスプライン嵌合し、これら可動側摩擦板(8)を圧接
するプレッシャープレート(9)を設けるとともに、ミ
ッションケース(M)に装着したブレーキハウジング
(10)に多数の固定側摩擦板(11)を係合し、これらの
固定側摩擦板(11)を前記可動側摩擦板(8)と交互に
配置してある。そして、前記シフトボス(3L),(3R)
のミッションケース(M)内壁側へのシフトによって可
動側摩擦板(8)と固定側摩擦板(11)とが圧接されて
制動トルクを発生する前記湿式多板ブレーキ(BL),
(BR)を構成してある。尚、通常はスプリング(12
L),(12R)によってシフトボス(3L),(3R)を入力
ギヤ(2)側へ付勢してあり、クラッチ(CL),(CR)
はオン状態に、湿式多板ブレーキ(BL),(BR)はオフ
状態になっている。
Further, a large number of movable friction plates (8) are provided on the outer peripheral portion of the shift bosses (3L) and (3R) on the inner wall side of the mission case (M).
Is provided with a pressure plate (9) for spline-fitting the movable friction plates (8), and a large number of fixed friction plates (11) are attached to the brake housing (10) mounted on the transmission case (M). The fixed side friction plates (11) are engaged with each other and the movable side friction plates (8) are alternately arranged. And the shift boss (3L), (3R)
Of the wet multi-plate brake (BL) in which the movable side friction plate (8) and the fixed side friction plate (11) are pressed into contact with each other by the shift to the inner wall side of the mission case (M) to generate braking torque
(BR) is configured. Normally, the spring (12
L) and (12R) bias the shift bosses (3L) and (3R) to the input gear (2) side, and the clutches (CL) and (CR)
Is on and wet multi-plate brakes (BL) and (BR) are off.

従って、入力ギヤ(2)から2つの伝動ギヤ(7L),
(7R)へ分岐伝動されている状態において、シフトボス
(3L又は3R)をスプリング(12L又は12R)に抗してミッ
ションケース(M)側へシフトさせると、クラッチ(CL
又はCR)が切り状態となって伝動ギヤ(7L又は7R)への
駆動力が断たれ、更にシフトさせると湿式多板ブレーキ
(BL又はBR)がオン状態になり、伝動ギヤ(7L又は7R)
に制動力が働くのである。
Therefore, from the input gear (2) to the two transmission gears (7L),
When the shift boss (3L or 3R) is shifted to the mission case (M) side against the spring (12L or 12R) while being branched to (7R), the clutch (CL)
(Or CR) is turned off and the driving force to the transmission gear (7L or 7R) is cut off, and if it is further shifted, the wet multi-plate brake (BL or BR) is turned on and the transmission gear (7L or 7R)
The braking force is applied to.

前記ミッションケース(M)内には、潤滑及び冷却用の
オイルを入れてある。このオイルの一部が、湿式多板ブ
レーキ(BL),(BR)をオフの状態にした際に、可動側
摩擦板(8)と固定側摩擦板(11)との摩擦面の隙間に
入り込むことで、両摩擦板(8),(11)の離間を補助
して発生する摩擦力を極力小さくし、動力ロスを少なく
している。つまり、湿式多板ブレーキ(BL),(BR)の
オン・オフを円滑に行えるようにしているのである。
The mission case (M) contains oil for lubrication and cooling. Part of this oil enters the gap between the friction surfaces of the movable side friction plate (8) and the fixed side friction plate (11) when the wet multi-plate brakes (BL) and (BR) are turned off. As a result, the frictional force generated by assisting the separation between the friction plates (8) and (11) is minimized and the power loss is reduced. In other words, the wet multi-disc brakes (BL) and (BR) can be smoothly turned on and off.

第1図及び第2図に示すように、ブレーキハウジング
(10)の内奥はミッションケース(M)の壁で塞がれて
いるため、オイルが内奥にまで行き亘り難くなってい
て、それを補うためこの湿式多板ブレーキ(BL),(B
R)には3種類の油路を設けてある。
As shown in FIGS. 1 and 2, the inner side of the brake housing (10) is closed by the wall of the mission case (M), so it is difficult for the oil to reach the inner side. This wet multi-disc brake (BL), (B
R) has three types of oil passages.

つまり、可動側摩擦板(8)の円周に形成された嵌合用
のスプライン溝(8a)の各谷部側に円孔(8b)を連設
し、これらの円孔(8b)を第1の油路としてある。ま
た、固定側摩擦板(11)の外周の各突部(11a)に凹部
(11b)を形成し、これらの凹部(11b)を第2の油路と
してある。更に、固定側摩擦板(11)の突部(11a)を
嵌合するために形成されたブレーキハウジング(10)の
嵌合溝(10a)とブレーキハウジング(10)内部の中心
側とを結ぶ油流通溝(13)を、ブレーキハウジング(1
0)側に設けた摩擦板支持用の圧接面(14)に形成し、
第3の油路としてある。補足すると、最も内側に位置す
る固定側摩擦板(11)が、ブレーキオン状態で圧接する
ブレーキハウジング(10)の圧接面に、油流通溝(13)
を放射状に形成し、前記嵌合溝(10a)からブレーキハ
ウジング(10)の内部空間へオイルを導く油路としてあ
る。
That is, circular holes (8b) are continuously provided on each trough side of the spline groove (8a) for fitting formed on the circumference of the movable side friction plate (8), and these circular holes (8b) are firstly formed. It is as an oil passage. Further, recesses (11b) are formed in each projection (11a) on the outer periphery of the fixed side friction plate (11), and these recesses (11b) serve as second oil passages. Further, an oil connecting the fitting groove (10a) of the brake housing (10) formed for fitting the protrusion (11a) of the fixed side friction plate (11) and the center side inside the brake housing (10). Align the flow groove (13) with the brake housing (1
Formed on the pressure contact surface (14) for supporting the friction plate provided on the (0) side,
It is the third oil passage. Supplementally, the fixed-side friction plate (11) located on the innermost side is connected to the pressure contact surface of the brake housing (10) which is pressure-contacted in the brake-on state, with the oil flow groove (13).
Are radially formed and serve as an oil passage for guiding oil from the fitting groove (10a) to the internal space of the brake housing (10).

このように、当該湿式多板ブレーキ(BL),(BR)は、
ブレーキハウジング(10)の内奥にまでオイルがよく行
き亘っていて、ブレーキオフ状態での動力ロスが非常に
少ない上に冷却能力も高いものとなっているのである。
In this way, the wet multi-plate brakes (BL), (BR)
The oil is well distributed to the inside of the brake housing (10), and the power loss in the brake-off state is very small and the cooling capacity is high.

尚、実用新案登録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、該記入により本考案は添付図
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 of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

【図面の簡単な説明】[Brief description of drawings]

図面は本考案に係る湿式多板ブレーキの実施例を示し、
第1図は分解斜視図、第2図は拡大断面図、第3図はコ
ンバインの走行系の一部を示す断面図である。 (1)……ブレーキ軸、(3L),(3R)……シフトボ
ス、(8)……可動側摩擦板、(10)……ブレーキハウ
ジング、(10a)……嵌合溝、(11)……固定側摩擦
板、(11a)……突部、(13)……油流通溝、(14)…
…圧接面。
The drawings show an embodiment of a wet multi-disc brake according to the present invention,
FIG. 1 is an exploded perspective view, FIG. 2 is an enlarged sectional view, and FIG. 3 is a sectional view showing a part of a traveling system of the combine. (1) ... Brake shaft, (3L), (3R) ... Shift boss, (8) ... Movable friction plate, (10) ... Brake housing, (10a) ... Mating groove, (11) ... … Fixed side friction plate, (11a) …… projection, (13) …… oil circulation groove, (14)…
… Pressing surface.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】ブレーキ軸(1)にシフトボス(3L),
(3R)を嵌合し、このシフトボス(3L),(3R)に可動
側摩擦板(8)をスプライン嵌合するとともに、ドラム
状のブレーキハウジング(10)に形成した嵌合溝(10
a)に固定側摩擦板(11)の外周に設けた突部(11a)を
嵌合してある湿式多板ブレーキであって、ブレーキハウ
ジング(10)側に設けた摩擦板支持用の圧接面(14)
に、前記嵌合溝(10a)とハウジング内部とを連通する
油流通溝(13)を設けてある湿式多板ブレーキ。
1. A shift boss (3L) on the brake shaft (1),
(3R) is fitted, the movable side friction plate (8) is spline fitted to the shift bosses (3L), (3R), and the fitting groove (10) formed in the drum-shaped brake housing (10) is fitted.
A wet multi-disc brake in which a protrusion (11a) provided on the outer periphery of a fixed side friction plate (11) is fitted to a), and a pressure contact surface for supporting the friction plate provided on the brake housing (10) side. (14)
A wet multi-plate brake, in which an oil circulation groove (13) that communicates the fitting groove (10a) with the inside of the housing is provided.
JP1988001420U 1988-01-09 1988-01-09 Wet multi-plate brake Expired - Lifetime JPH077632Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988001420U JPH077632Y2 (en) 1988-01-09 1988-01-09 Wet multi-plate brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988001420U JPH077632Y2 (en) 1988-01-09 1988-01-09 Wet multi-plate brake

Publications (2)

Publication Number Publication Date
JPH01106642U JPH01106642U (en) 1989-07-18
JPH077632Y2 true JPH077632Y2 (en) 1995-02-22

Family

ID=31201289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988001420U Expired - Lifetime JPH077632Y2 (en) 1988-01-09 1988-01-09 Wet multi-plate brake

Country Status (1)

Country Link
JP (1) JPH077632Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101137583B1 (en) * 2010-02-17 2012-04-19 동양물산기업 주식회사 Hydraulic Wet Brake

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6333151B2 (en) * 2014-10-17 2018-05-30 ヤンマー株式会社 Steering mechanism
JP6846197B2 (en) * 2016-12-28 2021-03-24 三菱ロジスネクスト株式会社 Transmission device
CN113483039A (en) * 2021-07-16 2021-10-08 安徽合力股份有限公司 Wet brake

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6262034U (en) * 1985-10-07 1987-04-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101137583B1 (en) * 2010-02-17 2012-04-19 동양물산기업 주식회사 Hydraulic Wet Brake

Also Published As

Publication number Publication date
JPH01106642U (en) 1989-07-18

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