JPH0424184Y2 - - Google Patents
Info
- Publication number
- JPH0424184Y2 JPH0424184Y2 JP1986044665U JP4466586U JPH0424184Y2 JP H0424184 Y2 JPH0424184 Y2 JP H0424184Y2 JP 1986044665 U JP1986044665 U JP 1986044665U JP 4466586 U JP4466586 U JP 4466586U JP H0424184 Y2 JPH0424184 Y2 JP H0424184Y2
- Authority
- JP
- Japan
- Prior art keywords
- leaf spring
- armature
- gap
- suction surface
- holder
- 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
Links
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は電磁クラツチ・電磁ブレーキ等の電磁
アマチユア作動装置において、アマチユア釈放
時、アマチユアとロータ等の吸着面との空隙を常
に一定に調整するための自動空隙調整装置に関す
る。[Detailed description of the invention] [Industrial field of application] The present invention is used in electromagnetic armature actuating devices such as electromagnetic clutches and electromagnetic brakes to constantly adjust the gap between the armature and the attracting surface of a rotor, etc., when the armature is released. The present invention relates to an automatic air gap adjustment device for.
〔従来の技術〕
電磁クラツチ・ブレーキのアマチユア釈放時に
はアマチユアとアマチユア吸着面との空隙は常に
一定値に保持し、コイル励磁によるアマチユア吸
引時間を常に一定にしておく必要がある。これは
電磁クラツチ・ブレーキの連結・制動回数の増加
によつて摩擦面が摩耗して空隙が広くなると、コ
イル励磁によるアマチユア吸引時間が長くなり連
結・制動の作動が遅くなり、さらに、空隙が広く
なつた場合は、コイルを励磁してもアマチユアに
吸引力が及ばず、連結・制動の作動をしなくなる
という欠陥を生ずるため、これを防止する必要が
あるからである。[Prior Art] When the armature of an electromagnetic clutch/brake is released, the gap between the armature and the armature suction surface must always be maintained at a constant value, and the armature suction time by coil excitation must always be kept constant. This is because as the number of times the electromagnetic clutch/brake engages and brakes increases, the friction surfaces wear out and the air gap widens.The armature suction time due to coil excitation becomes longer, slowing down the engagement/braking operation, and furthermore, the air gap widens. This is because if the coil is energized, the attraction force will not be applied to the armature, resulting in a failure in which connection and braking will not occur, so it is necessary to prevent this.
従来、このような欠陥の発生を防止し空隙を自
動的調整する装置として、実公昭58−13143号公
報に示されるものが公知である。この装置は、駆
動部にバツクラツシユによるガタが生じないよう
に、一枚の板ばねを用いており、該板ばねは、ア
マチユア・吸着面間の摩耗に伴つてたわみ量が増
大するように構成されている。 Conventionally, a device disclosed in Japanese Utility Model Publication No. 13143/1983 is known as a device for automatically adjusting the gap and preventing the occurrence of such defects. This device uses a single leaf spring to prevent rattling due to backlash in the drive part, and the leaf spring is constructed so that the amount of deflection increases as the armature and suction surface wear out. ing.
従つて、上記板ばねのたわみ量の増大に応じ
て、アマチユアの復帰弾力も増大することとな
り、アマチユアは、大きなばね力で保持される。
そのため、アマチユアは磁力による吸引時、この
大きなばね力に抗して吸着面方向に移動すること
となり、応答性が悪くなるという欠陥が存した。
Therefore, as the amount of deflection of the leaf spring increases, the return elasticity of the armature also increases, and the armature is held with a large spring force.
Therefore, when the armature is attracted by the magnetic force, it moves in the direction of the attracting surface against this large spring force, resulting in a defect that the response becomes poor.
本考案は上記欠陥を除去することを目的とする
ものである。 The present invention aims to eliminate the above defects.
上記目的を達成するために、本考案は、アマチ
ユア吸着面8aに対するアマチユア21の間隙が
所定の大きさより増大した状態のとき、アマチユ
ア吸着面8aにアマチユア21が吸着すると、間
隙調整用の軸体18に係合する第1の板ばね14
aが上記間隙増大分だけ前記アマチユア吸着面8
a方向に移動するようにした装置において、アマ
チユア吸着面8aに所定の隙間G1を存してアマ
チユア21を対向させ、該アマチユア21を第2
の板ばね14bに固定し、前記第1の板ばね14
aをアマチユアホルダー12の適所に固定し、前
記第1と第2の板ばね14a,14bを単一の板
ばね14によつて構成し、該単一の板ばね14の
二つの異なる同心円線S1,S2上のうちの一つ
の同心円S1に沿つて上記第1の板ばね14aを
形成し、上記他の同心円S2に沿つて上記第2の
板ばね14bを形成し、上記第1の板ばね14a
の原形保持力を上記第2の板ばね14bの原形保
持力よりも大きく設定するとともに、前記第1の
板ばね14aのたわみ状態を保持する手段を設け
たものである。
In order to achieve the above object, the present invention provides that when the armature 21 is attracted to the armature suction surface 8a when the gap between the armature 21 and the armature suction surface 8a is larger than a predetermined size, the gap adjustment shaft body 18 a first leaf spring 14 that engages with the first leaf spring 14;
a is the armature suction surface 8 by the increase in the gap.
In a device configured to move in the a direction, the armature 21 is placed opposite to the armature suction surface 8a with a predetermined gap G1, and the armature 21 is moved to the second armature suction surface 8a.
The first leaf spring 14b is fixed to the first leaf spring 14b.
a is fixed in a proper position on the armature holder 12, the first and second leaf springs 14a and 14b are constituted by a single leaf spring 14, and two different concentric circles S1 of the single leaf spring 14 are formed. , S2, and the second leaf spring 14b is formed along the other concentric circle S2, and the first leaf spring 14a is formed along the other concentric circle S2.
The original shape holding force of the second leaf spring 14b is set to be larger than that of the second leaf spring 14b, and a means for maintaining the deflected state of the first leaf spring 14a is provided.
上記した構成において、アマチユア21と吸着
面8aとの隙間が増大すると、アマチユア21が
吸着面8aに磁力によつて吸着するとき、軸体1
8は、第1の板ばね14aをたわませて該板ばね
14aの弾力に抗して吸着面8a方向に、上記隙
間増大分だけ移動する。このとき、ふわみ保持手
段は第1の板ばね14aをたわんだ状態に保持す
る。吸着面に作用する磁力が消去すると、アマチ
ユア21は、第2の板ばね14bにより吸着面8
aから離反し、軸体18に対して元位置に復帰す
る。このとき、第1の板ばね14aは、上記隙間
増大分わん曲した状態を保持するので、アマチユ
ア21は、吸着面8aに対して、最初に設定した
隙間G1を存して対向し、上記隙間増大分は自動
的に補正される。
In the above configuration, when the gap between the armature 21 and the attraction surface 8a increases, when the armature 21 is attracted to the attraction surface 8a by magnetic force, the shaft body 1
8 deflects the first leaf spring 14a and moves in the direction of the suction surface 8a by the increase in the gap against the elasticity of the leaf spring 14a. At this time, the deflection retaining means retains the first leaf spring 14a in a deflected state. When the magnetic force acting on the attraction surface is eliminated, the armature 21 is moved to the attraction surface 8 by the second leaf spring 14b.
a and returns to its original position with respect to the shaft body 18. At this time, the first leaf spring 14a maintains a bent state due to the increase in the gap, so the armature 21 faces the suction surface 8a with the initially set gap G1, and The increase will be automatically corrected.
以下に本考案の構成を添付図面に示す実施例を
参照して詳細に説明する。
The configuration of the present invention will be described in detail below with reference to embodiments shown in the accompanying drawings.
第1,2図において、2は電磁クラツチ4のス
テータであり、コイル6を内蔵している。8はロ
ータであり、これにライニングから成るアマチユ
ア吸着面8aが形成されている。10はハブであ
り、これに盤状のアマチユアホルダー12が固定
されている。14はリング状の板ばねであり、複
数個の第1の板ばね14aが同心円線S1に沿つ
て形成され、第2の板ばね14bが同心円線S2
に沿つて一体的に形成されている。第1の板ばね
14aはリベツト16によつて、前記アマチユア
ホルダー12に固定されている。第2の板ばね1
4bは、リベツト19によつてアマチユア21に
固定されている。18は間隙調整用の軸体であ
り、これに、前記板ばね14aの中間部が固定さ
れている。前記軸体18は、前記アマチユア21
に透設された段付き穴26に遊嵌し、該軸体18
に形成された鍔部18aの一側面は、前記穴26
の大径部の底面に、対向している。28は環状部
28aが前記軸体18に遊嵌されたピンであり該
ピン28は、板ばね14とホルダー12との間に
挿入配置されている。前記ピン28は、両端方向
に直線状部28b,28cが形成され、該直線状
部28b,28cは互いに広がる方向に付勢され
ている。 In FIGS. 1 and 2, 2 is a stator of an electromagnetic clutch 4, which has a built-in coil 6. 8 is a rotor, and an amateur suction surface 8a made of a lining is formed on the rotor. 10 is a hub, and a plate-shaped armature holder 12 is fixed to this. Reference numeral 14 designates a ring-shaped leaf spring, in which a plurality of first leaf springs 14a are formed along a concentric circle line S1, and a plurality of second leaf springs 14b are formed along a concentric circle line S2.
It is integrally formed along the The first leaf spring 14a is fixed to the armature holder 12 by a rivet 16. Second leaf spring 1
4b is fixed to armature 21 by rivets 19. Reference numeral 18 denotes a shaft for adjusting the gap, to which the intermediate portion of the leaf spring 14a is fixed. The shaft body 18 is connected to the armature 21
The shaft body 18 is loosely fitted into a stepped hole 26 provided through the shaft body 18.
One side of the flange 18a formed in the hole 26
It faces the bottom of the large diameter part of. A pin 28 has an annular portion 28a loosely fitted to the shaft body 18, and the pin 28 is inserted between the leaf spring 14 and the holder 12. The pin 28 has linear portions 28b and 28c formed at both ends thereof, and the linear portions 28b and 28c are biased in a direction in which they diverge from each other.
尚、上記板ばね14aの原形保持力は、所定範
囲内において、板ばね14bの原形保持力よりも
大きく設定され、且つ、コイル6の励磁力による
吸着面8aのアマチユア21に対する吸引力は前
記板ばね14aの原形保持力よりもかなり大きく
設定されている。 The original shape retaining force of the leaf spring 14a is set to be larger than the original shape retaining force of the leaf spring 14b within a predetermined range, and the attractive force of the attraction surface 8a to the armature 21 due to the excitation force of the coil 6 is set to be larger than the original shape retaining force of the leaf spring 14b. It is set considerably larger than the original shape holding force of the spring 14a.
次に本実施例の作用について説明する。 Next, the operation of this embodiment will be explained.
アマチユア吸着面8aが摩耗する前に、まず、
ピン28の直線状部28b,28cをピン28の
弾力に抗して互いに略平行となる状態に屈曲させ
ておく。該状態において、アマチユア21とアマ
チユア吸着面8aとは、所定のギヤツプG1を存
して対向し、軸体18の鍔部18a背面と、穴2
6の大径部の底面とは、上記ギヤツプG1と同一
のギヤツプG2を存して対向する。コイル6に電
流が流れると、ロータ8のアマチユア吸着面8a
に磁束が発生し、アマチユア21が磁力によつ
て、ロータ8の吸着面8aに密着し、ロータ8側
とハブ10側は連結する。アマチユア21が吸着
面8aに吸着するとき、吸着面8aに摩耗がなけ
れば、アマチユア21のみが板ばね14のたわみ
によつてロータ8方向に移動するだけで、軸体1
8は、アマチユアホルダー12に対して移動しな
い。しかるに、アマチユア21と吸着面8aとの
間に摩耗が生じると、両者のギヤツプは、G1+
α(摩耗量)となり、最初に設定した隙間G1よ
り大きくなる。従つて、該状態でアマチユア21
が吸着面8aに磁気吸引されると、アマチユア2
1の段付き穴26の大径部の底面は、軸体18の
鍔部18aの背面に衝突し、軸体18を、板ばね
14の弾力に抗して、上記摩耗量αだけ、吸着面
8a方向に引き出す。軸体18のこの移動に伴
い、板ばね14aの軸体18との固定部が吸着面
8a方向に突出わん曲する。この板ばね14aの
わん曲によつて、ピン28の直線状部28a,2
8bはそれらの弾力によつて広がる方向に変位
し、板ばね14aのわん曲により、板ばね14a
とアマチユアホルダー12間に形成された隙間に
入り込む。従つて、コイル6への通電が解除さ
れ、アマチユア21が板ばね14bの弾力によつ
て吸着面8aから離反しても、板ばね14aのわ
ん曲状態は、ピン28の直線状部28b,28c
のくさび作用によつて保持され、軸体18は、ア
マチユアホルダー12側に引戻されずに、アマチ
ユアホルダー12から突出した状態を保持する。
従つて、アマチユア21は、板ばね14bによつ
て復帰したとき、上記摩擦量αが補正され、吸着
面8aに対して、最初に設定した隙間G1を存し
て対向する。 Before the amateur suction surface 8a wears out, first,
The straight portions 28b and 28c of the pin 28 are bent to be substantially parallel to each other against the elasticity of the pin 28. In this state, the armature 21 and the armature suction surface 8a face each other with a predetermined gap G1, and the back surface of the flange 18a of the shaft body 18 and the hole 2
The bottom surface of the large diameter portion of No. 6 faces the bottom surface of the large diameter portion with a gap G2 which is the same as the gap G1 described above. When a current flows through the coil 6, the armature suction surface 8a of the rotor 8
A magnetic flux is generated, and the armature 21 comes into close contact with the attracting surface 8a of the rotor 8 due to the magnetic force, and the rotor 8 side and the hub 10 side are connected. When the armature 21 is attracted to the attraction surface 8a, if there is no wear on the attraction surface 8a, only the armature 21 moves in the direction of the rotor 8 due to the deflection of the leaf spring 14, and the shaft body 1
8 does not move relative to the armature holder 12. However, when wear occurs between the armature 21 and the suction surface 8a, the gap between them becomes G1+
α (wear amount) becomes larger than the initially set gap G1. Therefore, in this state amateur 21
is magnetically attracted to the attraction surface 8a, the amateur 2
The bottom surface of the large diameter portion of the stepped hole 26 of No. 1 collides with the back surface of the flange 18a of the shaft body 18, and resists the elasticity of the leaf spring 14 to push the shaft body 18 against the suction surface by the above-mentioned wear amount α. Pull it out in the direction 8a. With this movement of the shaft body 18, the fixed portion of the leaf spring 14a to the shaft body 18 protrudes and curves in the direction of the suction surface 8a. Due to the bending of the leaf spring 14a, the straight portions 28a, 2 of the pin 28
8b is displaced in the direction of expansion due to their elasticity, and due to the bending of the leaf spring 14a, the leaf spring 14a
and the armature holder 12. Therefore, even if the coil 6 is de-energized and the armature 21 is separated from the suction surface 8a due to the elasticity of the leaf spring 14b, the bent state of the leaf spring 14a will remain the same as the straight portions 28b, 28c of the pin 28.
The shaft body 18 is held by the wedge action, and the shaft body 18 is not pulled back toward the armature holder 12 but maintains a state of protruding from the armature holder 12.
Therefore, when the armature 21 is returned to its original position by the leaf spring 14b, the amount of friction α is corrected, and the armature 21 faces the suction surface 8a with the initially set gap G1 therebetween.
尚、また、第5図に示すように一枚の板ばね1
4に第1の板ばね14aと第2の板ばね14bを
構成しても良い。また、板ばね14aの復帰を阻
止する手段は、特に図示するものに限定されるも
のではない。 Furthermore, as shown in FIG.
4 may be configured with a first leaf spring 14a and a second leaf spring 14b. Furthermore, the means for preventing the leaf spring 14a from returning is not particularly limited to what is shown in the drawings.
本考案は上述の如く、隙間調整用の軸体とアマ
チユアホルダーとを第1の板ばねによつて連結し
上記軸体とアマチユアとを第2の板ばねによつて
連結し、上記第1の板ばねと第2の板ばねとを単
一の板ばねに、その異なる同心円線に沿つて形成
したので、上記第1の板ばねがたわんでも、この
たわみが、上記第2の板ばねのアマチユア保持弾
力に影響することがなく、常に適正な復帰弾力で
アマチユアを作動させることができ、アマチユア
の応答性を損うことがないという効果が存する。
As described above, the present invention connects the shaft for adjusting the gap and the armature holder by a first leaf spring, connects the shaft and the armature by a second leaf spring, and Since the leaf spring and the second leaf spring are formed into a single leaf spring along different concentric lines, even if the first leaf spring is bent, this deflection is reflected in the armature of the second leaf spring. There is an effect that the holding elasticity is not affected, the armature can always be operated with an appropriate return elasticity, and the responsiveness of the armature is not impaired.
図は本考案の好適な実施例を示し、第1図は断
面図、第2図は断面図、第3図は側面図、第4図
は側面図、第5図は他の実施例を示す側面図、で
ある。
2……ステータ、4……電磁クラツチ、6……
コイル、8……ロータ、8a……吸着面、10…
…ハブ、12……アマチユアホルダー、14……
板ばね、14a……第1の板ばね、14b……第
2の板ばね、18……軸体、18a……鍔部、1
9……リベツト、26……段付き穴、28……ピ
ン。
The figures show preferred embodiments of the present invention; FIG. 1 shows a sectional view, FIG. 2 shows a sectional view, FIG. 3 shows a side view, FIG. 4 shows a side view, and FIG. 5 shows another embodiment. This is a side view. 2... Stator, 4... Electromagnetic clutch, 6...
Coil, 8...Rotor, 8a...Adsorption surface, 10...
...Hub, 12...Amachi your holder, 14...
Leaf spring, 14a...first leaf spring, 14b...second leaf spring, 18...shaft, 18a...flange, 1
9...Rivet, 26...Stepped hole, 28...Pin.
Claims (1)
の間隙が所定の大きさより増大した状態のとき、
アマチユア吸着面8aにアマチユア21が吸着す
ると、間隙調整用の軸体18に係合する第1の板
ばね14aが上記間隙増大分だけ前記アマチユア
吸着面8a方向に移動するようにした装置におい
て、アマチユア吸着面8aに所定の隙間G1を存
してアマチユア21を対向させ、該アマチユア2
1を第2の板ばね14bに固定し、前記第1の板
ばね14aをアマチユアホルダー12の複数箇所
に所定間隔を存して固定し、前記第1と第2の板
ばね14a,14bを単一の板ばね14によつて
構成し、該単一の板ばね14の二つの異なる同心
円線S1,S2上のうちの一つの同心円S1に沿
つて上記第1の板ばね14aを形成し、上記他の
同心円S2に沿つて上記第2の板ばね14bを形
成し、上記第1の板ばね14aの原形保持力を上
記第2の板ばね14bの原形保持力よりも大きく
設定するとともに、前記第1の板ばね14aのた
わみ状態を保持する手段として、互いに対向する
部分28b,28cの間隔が広がる方向に付勢さ
れたピン28を前記第1の板ばね14aの前記ア
マチユアホルダー12との固定部間に位置して且
つ前記第1の板ばね14aと前記アマチユアホル
ダー12との対向面間に位置して配置したことを
特徴とする電磁アマチユア作動装置における自動
空隙調整装置。 Amateur 21 against the Amateur suction surface 8a
When the gap is larger than a predetermined size,
When the armature 21 is attracted to the armature suction surface 8a, the first leaf spring 14a that engages with the gap adjustment shaft body 18 moves in the direction of the armature attraction surface 8a by the amount of increase in the gap. Amateurs 21 are arranged to face each other with a predetermined gap G1 on the suction surface 8a, and the amateurs 2
1 is fixed to a second leaf spring 14b, the first leaf spring 14a is fixed at a plurality of locations on the armature holder 12 at predetermined intervals, and the first and second leaf springs 14a, 14b are fixed to a single leaf spring 14b. The first leaf spring 14a is formed along one concentric circle S1 of two different concentric circles S1 and S2 of the single leaf spring 14, The second leaf spring 14b is formed along the other concentric circle S2, and the original shape retaining force of the first leaf spring 14a is set larger than the original shape retaining force of the second leaf spring 14b. As a means for maintaining the deflected state of the first leaf spring 14a, a pin 28, which is biased in a direction in which the distance between the mutually opposing parts 28b and 28c increases, is attached to the fixing part of the first leaf spring 14a to the armature holder 12. An automatic gap adjustment device in an electromagnetic armature actuating device, characterized in that the device is disposed between the first leaf spring 14a and the armature holder 12, and between opposing surfaces of the armature holder 12.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986044665U JPH0424184Y2 (en) | 1986-03-26 | 1986-03-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986044665U JPH0424184Y2 (en) | 1986-03-26 | 1986-03-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62156630U JPS62156630U (en) | 1987-10-05 |
JPH0424184Y2 true JPH0424184Y2 (en) | 1992-06-08 |
Family
ID=30862689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986044665U Expired JPH0424184Y2 (en) | 1986-03-26 | 1986-03-26 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0424184Y2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5818133B2 (en) * | 1975-10-22 | 1983-04-11 | 旭化成株式会社 | Antei Shitadoui Taibun Rihouhou |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5818133U (en) * | 1981-07-28 | 1983-02-04 | 神鋼電機株式会社 | Automatic air gap adjustment device for electromagnetic clutches and brakes |
-
1986
- 1986-03-26 JP JP1986044665U patent/JPH0424184Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5818133B2 (en) * | 1975-10-22 | 1983-04-11 | 旭化成株式会社 | Antei Shitadoui Taibun Rihouhou |
Also Published As
Publication number | Publication date |
---|---|
JPS62156630U (en) | 1987-10-05 |
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