JPS6174925A - Hydraulic wet disc brake - Google Patents

Hydraulic wet disc brake

Info

Publication number
JPS6174925A
JPS6174925A JP19327784A JP19327784A JPS6174925A JP S6174925 A JPS6174925 A JP S6174925A JP 19327784 A JP19327784 A JP 19327784A JP 19327784 A JP19327784 A JP 19327784A JP S6174925 A JPS6174925 A JP S6174925A
Authority
JP
Japan
Prior art keywords
brake
pressure plate
housing
fitted
disc
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
JP19327784A
Other languages
Japanese (ja)
Other versions
JPH0424580B2 (en
Inventor
Hideyuki Fujinami
秀之 藤波
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.)
Akebono Brake Industry Co Ltd
Original Assignee
Akebono Brake Industry 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 Akebono Brake Industry Co Ltd filed Critical Akebono Brake Industry Co Ltd
Priority to JP19327784A priority Critical patent/JPS6174925A/en
Publication of JPS6174925A publication Critical patent/JPS6174925A/en
Publication of JPH0424580B2 publication Critical patent/JPH0424580B2/ja
Granted 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/54—Slack adjusters mechanical self-acting in one direction for adjusting excessive play by means of direct linear adjustment
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
    • F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
    • F16D55/36—Brakes with a plurality of rotating discs all lying side by side
    • F16D55/40—Brakes with a plurality of rotating discs all lying side by side actuated by a fluid-pressure device arranged in or one the brake
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0058—Fully lined, i.e. braking surface extending over the entire disc circumference

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

PURPOSE:To control automatically the relative position of each member less expensively at the time of releasing the brake by fitting an automatic control elastic sealing material to the circumferential surfaces of a pressure plate and a piston. CONSTITUTION:The circumferential surface of a pressure plate 10 pressing a disc 4 is so fitted as to be free to slide on the internal surface 11 of its housing, and a piston 12 pressing the said pressure plate 10 is so fitted as to be free to slide on a cylinder 15 installed continuously to a casing 14. Sealing grooves 17 and 16 are formed respectively on the circumferential surface of the pressure plate 10 and the internal surface of the cylinder 15, and fitted with elastic sealing materials 19 and 18 such as square ring type for both sealing and automatic adjustment purposes.

Description

【発明の詳細な説明】 （産業上の利用分野］ 本発明は車輌用、特に農業用トラクタ等に用いられる油
圧式ウェットディスクブレーキに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a hydraulic wet disc brake used for vehicles, particularly agricultural tractors and the like.

〔従来の技術の問題点〕[Problems with conventional technology]

従来この分野におけるディスクブレーキは、例えば機械
式ウェットディスクブレーキにおいては左右のブレーキ
で機械効率が異なる場合、片効き等を起し易く、また油
圧式ウェットディスクブレーキにおいては自動調整装置
が設備されていず、ピストンのリターン装置がバネ等で
行なわれているため高価となり、また等圧パルプを必要
とした。Conventionally, disc brakes in this field have been prone to one-sided effects, for example, when mechanical efficiency differs between the left and right brakes in mechanical wet disc brakes, and automatic adjustment devices have not been installed in hydraulic wet disc brakes. Since the return device for the piston was implemented using a spring or the like, it was expensive and required isobaric pulp.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の油圧式ウェットディスクブレーキはこのような
従来の問題点に対処してなされたもので、ブレーキハウ
ジング内周面に連動するブレッシャプレートを介して油
圧ピストンによりディスク部を圧接してブレーキ軸の回
転を制動するように構成すると共に、プレッシャプレー
ト外周部及びピストンが嵌挿されるシリンダー内周部に
夫々シール溝を設けて自動調整用弾性シール部材を装着
することにより、前述のようなブレーキの片効きがなく
、また等圧バルブなとを必要とすることなく、ブレーキ
解除時のピストン及びプレッシャプレートとディスク部
の関係位置を安価に自動調整するようにしたものである
。The hydraulic wet disc brake of the present invention has been developed to address these conventional problems, and the disc part is pressed against the brake shaft by a hydraulic piston via a brake plate that interlocks with the inner peripheral surface of the brake housing. In addition to being configured to brake rotation, seal grooves are provided on the outer periphery of the pressure plate and the inner periphery of the cylinder into which the piston is fitted, and an elastic sealing member for automatic adjustment is installed. This system automatically and inexpensively adjusts the relative position of the piston, pressure plate, and disk portion when the brake is released without the need for an equal pressure valve or the like.

〔実施例〕〔Example〕

以下図示の実施例により本発明を詳述する。 The present invention will be explained in detail below with reference to the illustrated embodiments.

第１図において（１）はブレーキ軸で図示してない動力
伝達様構によつと駆動されると共に、軸受（２）を介し
てブレーキハウジング（３）に回転可能に装架されてい
る。（４）はディスク部で、複数枚のアセンブリプレー
ト（５）とそれらの間に交互に配置されている環状ステ
ータ（６）よりなっている。アセンブリプレート（５）
の周縁の摩擦基にはペーパーフェーシング（７）が施さ
れており、ブレーキ軸（１）にスプライン部（８）を介
して軸方向可動に列設されている。またステータ（６）
はブレーキハウジング（３）内周縁部に周方向に所定間
隔で配設された複数個のアンカーピン（９）に軸方向可
動かつ非回動的に係合している。（１０）は環状のプレ
ッシャプレートでその外周面をハウジング内周面（１１
）に摺動し、ブレーキ軸（１）の先端側の前記ディスク
部（４）の面〔ステータ（６）〕に当接するようになっ
ている。（１２）はこのプレッシャプレート（１０）を
押圧して前ディスク部（４）をハウジング静止面（１３
）に圧接することにより、ブレーキ軸（１）の回転を制
動するための油圧ピストンでハウジング（３）の蓋体（
１４）に設けられたシリンダ部（１５）に摺動可能に嵌
挿されている。In FIG. 1, a brake shaft (1) is driven by a power transmission mechanism (not shown), and is rotatably mounted on a brake housing (3) via a bearing (2). Reference numeral (4) denotes a disk portion, which is composed of a plurality of assembly plates (5) and annular stators (6) arranged alternately between them. Assembly plate (5)
A paper facing (7) is applied to the friction base on the peripheral edge of the brake shaft (1), and the paper facing (7) is disposed on the brake shaft (1) via a spline portion (8) so as to be movable in the axial direction. Also stator (6)
is axially movable and non-rotatably engaged with a plurality of anchor pins (9) disposed at predetermined intervals in the circumferential direction on the inner peripheral edge of the brake housing (3). (10) is an annular pressure plate whose outer circumferential surface is connected to the inner circumferential surface of the housing (11).
) and comes into contact with the surface [stator (6)] of the disc portion (4) on the tip side of the brake shaft (1). (12) presses this pressure plate (10) to move the front disk portion (4) to the housing stationary surface (13).
A hydraulic piston is used to brake the rotation of the brake shaft (1) by pressing against the lid body ( ) of the housing (3).
14), and is slidably fitted into the cylinder part (15) provided in the cylinder part (15).

そして、シリンダ部（１５）の内周部（１５ａ）及びプ
レッシャプレート（１０）の外周部（１０ａ）には夫々
シール溝（１６）　、　　（１７）が凹設されており、
その中にはシール兼自動調整用の例えば角リング状の弾
性シール部材（１８）　、　　（１９）が夫々装着され
ている。なお、（２０）は油室（２１）への作動油の供
給口であり、（２２）はブリーダ、（２３）は蓋体（１
４〉をハウシング（１３）に固定するためのボルトであ
る。Seal grooves (16) and (17) are formed in the inner peripheral part (15a) of the cylinder part (15) and the outer peripheral part (10a) of the pressure plate (10), respectively.
For example, rectangular ring-shaped elastic seal members (18) and (19) for sealing and automatic adjustment are installed in these, respectively. In addition, (20) is a supply port for hydraulic oil to the oil chamber (21), (22) is a bleeder, and (23) is a port for supplying hydraulic oil to the oil chamber (21).
4> to the housing (13).

このような構成において、ブレーキマスクシリンダを作
動して油室（２１）にブレーキ作動油を供給すれば、そ
の油圧によりピストン（１２）は前進してプレッシャプ
レート（１０）を押圧し、ついでこのプレッシャプレー
ト（１０）はディスク部（４）を押圧する。これにより
ディスク部（４）のアセンブリプレート（５）及びステ
ータ（６）は順次静止面（１３）側に圧接されるのでブ
レーキ軸（１）の回転が制動される。その際、シール溝
（１６）及び（１７）における弾性シール部材（１ａ）
　、　　（１９）はピストン（１２）及びプレッシャプ
レート（１０）の前進につれてその方向に弾性変形する
が、ブレーキ操作を元に戻して油圧を排除し制動作用を
解除すると、元の状態に復元するので、その引戻し作用
によりピストン（１２）及びプレッシャプレート（１０
）とディスク部（４ンの関係位置は適性に保持されて自
動調整される。したがって引きづつは防止される。In such a configuration, when the brake mask cylinder is operated to supply brake hydraulic oil to the oil chamber (21), the piston (12) moves forward due to the hydraulic pressure and presses the pressure plate (10), and then this pressure is released. The plate (10) presses against the disk part (4). As a result, the assembly plate (5) of the disk portion (4) and the stator (6) are sequentially pressed against the stationary surface (13), thereby braking the rotation of the brake shaft (1). At that time, the elastic seal member (1a) in the seal grooves (16) and (17)
, (19) is elastically deformed in that direction as the piston (12) and pressure plate (10) move forward, but when the brake operation is returned to its original state and the hydraulic pressure is removed and the braking action is released, it is restored to its original state. , due to its retracting action, the piston (12) and pressure plate (10
) and the disk portion (4) are properly maintained and automatically adjusted. Therefore, pulling is prevented.

次に第２図に示すものは本発明の他の実施例を示すもの
で、シリンダ（ｉｓ’　）の内周部（１５’　ａ　）及
びプレッシャプレート（１０）の外周部（１０’　ａ　
）に凹設したシール溝（１６’）。Next, FIG. 2 shows another embodiment of the present invention, in which the inner peripheral part (15'a) of the cylinder (is') and the outer peripheral part (10'a) of the pressure plate (10)
) has a seal groove (16') recessed in it.

（１７’　）に夫々自動調整用弾性シヘル部材（１８’
　　）　、　　（１９”）を装着することにより、同様
の自動調整効果が得られた。(17') and elastic steel members (18') for automatic adjustment.
) and (19”), similar automatic adjustment effects were obtained.

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

第１図（イ）、（ロ）は本発明の一実施例を示すもので
、（イ）は一部切欠正面図、（ロ）は断面図、第２図（
イ）、（ロ）は本発明の他の実施例を示すもので、（イ
）は一部切欠正面図、（ロ）は断面図である。 １．１′・・・ブレーキ軸、 ３．３′・・・ブレーキハウジング、 ４．４′・・・ディスク部、 ５．５′・・・アセンブリプレート、 ６．６′・・・ステータ、９，９′・・・アンカビン、
４０、１０’　・・・プレッシャプレート、＋ｏａ　、
　ｉｏ’　ａ・・・プレッシャプレート外周部、１２、
１２’　・・・ピストン、１４．１４’・・・蓋体、１
５、１５’　・・・シリンダ部、 １５ａ　、　１５’　ａ・・・シリンダ内周部、１６、
１６’　、　１７．１７’　・・・シール溝、１８、１
８’　、　１９．１９’　・・・弾性シール部材、２０
・・・作動油供給口、２１・・・油室第１ （イ） 図Figures 1 (A) and (B) show an embodiment of the present invention, in which (A) is a partially cutaway front view, (B) is a sectional view, and Figure 2 (B) is a partially cutaway front view.
A) and (B) show other embodiments of the present invention, in which (A) is a partially cutaway front view and (B) is a sectional view. 1.1'...brake shaft, 3.3'...brake housing, 4.4'...disk section, 5.5'...assembly plate, 6.6'...stator, 9 ,9′...Ankabin,
40, 10'...Pressure plate, +oa,
io' a...Pressure plate outer periphery, 12,
12'... Piston, 14.14'... Lid body, 1
5, 15'...Cylinder part, 15a, 15'a...Cylinder inner peripheral part, 16,
16', 17.17'...Seal groove, 18, 1
8', 19.19'...Elastic sealing member, 20
...Hydraulic oil supply port, 21...Oil chamber No. 1 (A) Figure

Claims (1)

【特許請求の範囲】[Claims] （１）ブレーキ軸にスプライン嵌合して軸方向に可動し
、かつ該軸と共に回転可能な複数枚のアセンブリプレー
ト間に、ブレーキハウジング内周縁部に配設された複数
個のアンカーピンに係合し軸方向に可動な環状ステータ
を交互に配置したブィスク部をブレーキハウジング内に
設けると共に、該ハウジング内周面にその外周面を摺動
してブレーキ軸先端側の該ディスク部の面に当接する環
状プレッシャプレートと、このプレッシャプレートを介
して該ディスク部を圧接してブレーキ軸の回転を制動す
るための油圧ピストンを該ハウジング蓋体のシリンダ部
に嵌挿配設したディスクブレーキにして、上記シリンダ
内周部及びプレッシャプレート外周部に夫々シール溝を
凹設し、このシール溝に自動調整用弾性シール部材を装
着したことを特徴とする油圧式ウェットディスクブレー
キ。(1) A plurality of anchor pins disposed on the inner peripheral edge of the brake housing are engaged between a plurality of assembly plates that are spline-fitted to the brake shaft and movable in the axial direction and rotatable together with the shaft. A bisk portion in which axially movable annular stators are arranged alternately is provided in the brake housing, and its outer circumferential surface slides on the inner circumferential surface of the housing and comes into contact with the surface of the disc portion on the tip side of the brake shaft. A disc brake including an annular pressure plate and a hydraulic piston for braking the rotation of the brake shaft by pressing the disc part through the pressure plate is fitted into the cylinder part of the housing lid, and the cylinder A hydraulic wet disc brake characterized in that seal grooves are formed in the inner peripheral part and the outer peripheral part of the pressure plate, respectively, and an elastic seal member for automatic adjustment is attached to the seal grooves.
JP19327784A 1984-09-14 1984-09-14 Hydraulic wet disc brake Granted JPS6174925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19327784A JPS6174925A (en) 1984-09-14 1984-09-14 Hydraulic wet disc brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19327784A JPS6174925A (en) 1984-09-14 1984-09-14 Hydraulic wet disc brake

Publications (2)

Publication Number Publication Date
JPS6174925A true JPS6174925A (en) 1986-04-17
JPH0424580B2 JPH0424580B2 (en) 1992-04-27

Family

ID=16305258

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19327784A Granted JPS6174925A (en) 1984-09-14 1984-09-14 Hydraulic wet disc brake

Country Status (1)

Country Link
JP (1) JPS6174925A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61233230A (en) * 1985-04-04 1986-10-17 Touyoushiya:Kk Piston structure for hydraulic brake
JPH04121547U (en) * 1991-04-16 1992-10-30 曙ブレーキ工業株式会社 Vehicle auto adjuster device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58121751U (en) * 1982-02-12 1983-08-19 株式会社小松製作所 Braking device for wheeled vehicles
JPS5913143A (en) * 1982-07-10 1984-01-23 Sumitomo Electric Ind Ltd Multiplate disk brake

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58121751U (en) * 1982-02-12 1983-08-19 株式会社小松製作所 Braking device for wheeled vehicles
JPS5913143A (en) * 1982-07-10 1984-01-23 Sumitomo Electric Ind Ltd Multiplate disk brake

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61233230A (en) * 1985-04-04 1986-10-17 Touyoushiya:Kk Piston structure for hydraulic brake
JPH0222249B2 (en) * 1985-04-04 1990-05-17 Toyosha Co Ltd
JPH04121547U (en) * 1991-04-16 1992-10-30 曙ブレーキ工業株式会社 Vehicle auto adjuster device

Also Published As

Publication number Publication date
JPH0424580B2 (en) 1992-04-27

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