JPH0642105Y2 - Electromagnetic coupling device - Google Patents
Electromagnetic coupling deviceInfo
- Publication number
- JPH0642105Y2 JPH0642105Y2 JP1987137512U JP13751287U JPH0642105Y2 JP H0642105 Y2 JPH0642105 Y2 JP H0642105Y2 JP 1987137512 U JP1987137512 U JP 1987137512U JP 13751287 U JP13751287 U JP 13751287U JP H0642105 Y2 JPH0642105 Y2 JP H0642105Y2
- Authority
- JP
- Japan
- Prior art keywords
- fixing member
- armature
- rotor
- bracket
- leaf spring
- 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
Links
Landscapes
- Braking Arrangements (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は一方の面に駆動面を有し他方の面に制動面を有
するアーマチュアを備えた電磁連結装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an electromagnetic coupling device including an armature having a driving surface on one surface and a braking surface on the other surface.
この種の電磁連結装置としては、例えば実開昭58-14963
7号公報に開示されたものがある。これは駆動部材とな
るロータの摩擦面と固定部材の摩擦面との間にアーマチ
ュアを臨ませ、このアーマチュアを従動軸に設けられた
スプラインに嵌合させたものである。そして、アーマチ
ュアをスプラインに沿って軸線方向に移動させることに
よって、電磁コイルが無励磁状態のときは、圧縮コイル
ばねの弾撥力でアーマチュアを固定部材に圧接させて従
動軸の制動を行い、電磁コイルが励磁状態のときは、ア
ーマチュアをロータに磁気吸着させて動力の伝達を行う
ように構成されている。Examples of this type of electromagnetic coupling device include, for example, Shokai 58-14963.
Some are disclosed in Japanese Patent Publication No. 7. In this structure, an armature is made to face between a friction surface of a rotor, which is a driving member, and a friction surface of a fixed member, and the armature is fitted to a spline provided on a driven shaft. Then, by moving the armature along the spline in the axial direction, when the electromagnetic coil is in a non-excited state, the elastic shaft of the compression coil spring presses the armature against the fixed member to brake the driven shaft, and When the coil is in the excited state, the armature is magnetically attracted to the rotor to transmit power.
しかしながら、このようにスプラインを利用してアーマ
チュアを移動させる構造においては、アーマチュアを円
滑に移動させるためにスプラインにある程度のバックラ
ッシュを設けざるを得ない。その結果、駆動あるいは制
動時に、従動軸とアーマチュアとが僅かに相対的に回転
して衝突しあい、異音を発生するおそれがあった。However, in the structure in which the armature is moved by using the spline as described above, some backlash must be provided on the spline in order to smoothly move the armature. As a result, during driving or braking, the driven shaft and the armature may slightly rotate relative to each other and collide with each other, resulting in abnormal noise.
本考案はこのような事情に鑑みなされたもので、異音が
発生するのを防止することができる電磁連結装置を提供
するものである。本考案に係る電磁連結装置は、回転自
在に支持されたロータと、このロータの摩擦面と軸線方
向に間隔をおいて対向する摩擦面を有する固定部材と、
前記両摩擦面間に臨み一方に駆動面を有し他方に制動面
を有するアーマチュアと、前記ロータと前記固定部材の
各中央孔に圧入された軸受によりこれらロータと固定部
材に回転自在に支持された従動軸と、この従動軸上のハ
ブに前記アーマチュアを支持する板ばねと、前記アーマ
チュアをロータに磁気吸着する磁束を発生させる電磁コ
イルと、この電磁コイルが環状溝に装填されたフィール
ドコアと、このフィールドコアの外周面が後部に嵌入保
持されるとともに前部には前記固定部材が進退自在に嵌
入された非磁性材のブラケットと、このブラケットに半
径方向に螺合され前記固定部材の外周面に当接する無頭
ねじと、前記固定部材を軸線方向に貫通し前記ブラケッ
トに螺着される固定ボルトとを備え、前記板ばねの固定
面となる前記ハブの前面が前記固定部材の摩擦面より前
方に構成され、前記板ばねに、前記アーマチュアの制動
面を前記固定部材の摩擦面に常時圧接させる方向に弾撥
力が作用するように初期撓みを与えたものである。The present invention has been made in view of the above circumstances, and provides an electromagnetic coupling device capable of preventing generation of abnormal noise. An electromagnetic coupling device according to the present invention includes a rotor rotatably supported, a fixing member having a friction surface opposed to a friction surface of the rotor at an axial interval.
An armature having a driving surface on one side and a braking surface on the other side facing between the friction surfaces, and bearings press-fitted into the central holes of the rotor and the fixing member are rotatably supported by the rotor and the fixing member. A driven shaft, a leaf spring that supports the armature on a hub on the driven shaft, an electromagnetic coil that generates a magnetic flux that magnetically attracts the armature to a rotor, and a field core in which the electromagnetic coil is loaded in an annular groove. A bracket made of a non-magnetic material, in which an outer peripheral surface of the field core is fitted and held in a rear portion and the fixing member is fitted in a front portion so as to be able to move forward and backward, and an outer circumference of the fixing member screwed in the bracket in a radial direction. A hub that is a fixed surface of the leaf spring, and includes a headless screw that abuts a surface and a fixing bolt that penetrates the fixing member in the axial direction and is screwed to the bracket. The front surface is formed in front of the friction surface of the fixing member, and the leaf spring is subjected to an initial deflection so that an elastic force acts in a direction in which the braking surface of the armature is constantly pressed against the friction surface of the fixing member. It is a thing.
本考案においては、アーマチュアは板ばねが弾性変形す
ることによって従動軸の軸線方向に移動するようにな
る。In the present invention, the armature moves in the axial direction of the driven shaft due to elastic deformation of the leaf spring.
以下、その構成等を図に示す実施例により詳細に説明す
る。第1図は本考案に係る電磁連結装置を示す半断面
図、第2図は板ばねを示す正面図で、第1図において符
号Aで示すものは、例えばモータと減速機との間に配置
される電磁連結装置を示す。1は中央孔を有する環状に
形成されたフィールドコア、2はこのフィールドコア1
の前面に設けられた環状溝3に装填された環状の電磁コ
イルである。Hereinafter, the configuration and the like will be described in detail with reference to the embodiments shown in the drawings. FIG. 1 is a half sectional view showing an electromagnetic coupling device according to the present invention, FIG. 2 is a front view showing a leaf spring, and the reference numeral A in FIG. 1 is arranged, for example, between a motor and a speed reducer. 3 shows an electromagnetic coupling device. 1 is a field core formed in an annular shape having a central hole, 2 is this field core 1
Is an annular electromagnetic coil loaded in the annular groove 3 provided on the front surface of the.
4は動力が入力されるロータである。このロータ4は前
記フィールドコア1の中央孔内に前側から挿入される円
筒状のボス部4aと、このボス部4aの前端に外径方向に突
設されフィールドコア1の前面に間隔をおいて対向する
フランジ部4bとから断面略L字状に形成されており、前
記フィールドコア1の中央孔に圧入された軸受5でフィ
ールドコア1と同軸状に回転自在に支持されている。ロ
ータ4のボス部4aの内孔には図示しないモータのモータ
軸先端に設けられたピニオンが挿入嵌合される内歯6が
設けられている。一方、フランジ部4bの前面には、前面
に摩擦面7を有する環状の摩擦板8が嵌着されている。
11はロータ4に摩擦板8に沿うように設けられた円弧状
のスリットで、前記電磁コイル2で発生した磁束を後述
するアーマチュアへ迂回させる断磁部を形成している。4 is a rotor to which power is input. The rotor 4 has a cylindrical boss portion 4a which is inserted from the front side into the center hole of the field core 1 and an outer diameter direction projectingly provided at the front end of the boss portion 4a with a space in front of the field core 1. It is formed in a substantially L-shaped cross section from the facing flange portion 4b, and is rotatably supported coaxially with the field core 1 by a bearing 5 press-fitted into the central hole of the field core 1. Inner teeth 6 into which a pinion provided at the motor shaft tip of a motor (not shown) is inserted and fitted are provided in the inner hole of the boss portion 4a of the rotor 4. On the other hand, an annular friction plate 8 having a friction surface 7 on the front surface is fitted on the front surface of the flange portion 4b.
Reference numeral 11 denotes an arcuate slit provided along the friction plate 8 on the rotor 4 and forms a demagnetization portion that diverts the magnetic flux generated in the electromagnetic coil 2 to an armature described later.
12は非磁性材からフィールドコア1の外側を覆う円筒状
に形成されたブラケットである。前記フィールドコア1
はこのブラケット12の後部に嵌入保持されている。ブラ
ケット12の後端部には、図示しないモータを嵌合させる
いんろう凹部13が凹設されている。また、前部には、環
状の固定部材14をフィールドコア1に対して進退自在に
嵌入させる薄肉部12aが設けられている。15は固定部材1
4を軸線方向に貫通しブラケット12に螺着される固定ボ
ルト、16は薄肉部12aに半径方向に螺合され固定部材14
の外周面に当接する無頭ねじであり、これら部材は固定
部材14を軸線方向に移動させ所望の位置に固定する。す
なわち、固定部材14は前記固定ボルト15および無頭ねじ
16が緩められた状態では円筒状のブラケット12の内周面
を案内面としてその軸線方向に沿って進退自在となるよ
うに構成されている。固定部材14の背面には前記ロータ
4の摩擦面7に軸線方向に間隔をおいて対向する摩擦面
17を有する環状の摩擦板18が固着されている。ここで、
固定部材14の外径寸法は前記いんろう凹部13の内径寸法
と等しくされており、図示しない減速機のいんろう凹部
に嵌合されるいんろう凸部19を構成している。Reference numeral 12 is a bracket formed of a non-magnetic material and formed in a cylindrical shape to cover the outside of the field core 1. Field core 1
Is fitted and held in the rear portion of the bracket 12. At the rear end of the bracket 12, there is provided a recess 13 for fitting a brazing motor (not shown). Further, the front portion is provided with a thin portion 12a into which the annular fixing member 14 is fitted in the field core 1 so as to be able to move forward and backward. 15 is the fixing member 1
A fixing bolt that penetrates 4 in the axial direction and is screwed to the bracket 12, and 16 is a fixing member that is screwed in the thin portion 12a in the radial direction.
These are headless screws that come into contact with the outer peripheral surface of the fixing member 14, and these members move the fixing member 14 in the axial direction to fix it at a desired position. That is, the fixing member 14 includes the fixing bolt 15 and a headless screw.
In the loosened state of the cylindrical bracket 12, the inner peripheral surface of the cylindrical bracket 12 is used as a guide surface so as to be movable back and forth along the axial direction. On the back surface of the fixing member 14, a friction surface that faces the friction surface 7 of the rotor 4 at an axial interval.
An annular friction plate 18 having 17 is fixed. here,
The outer diameter of the fixing member 14 is made equal to the inner diameter of the wax recess 13 to form a solder bump 19 fitted into the solder recess of the speed reducer (not shown).
21は前記固定部材14の中央孔を貫通する従動軸である。
この従動軸21は前記中央孔に圧入された軸受22と、ロー
タ4の中央孔に圧入された軸受23とによってロータ4と
同軸状に回転自在に支持されている。また、前端部には
前記減速機の入力歯車と噛合し前記内歯6と噛合するピ
ニオンと等しい形状のピニオン24が設けられ、前記軸受
22,23間のローレット加工部25には後述する板ばねを支
持するハブ26が圧入固定されている。Reference numeral 21 is a driven shaft that penetrates the central hole of the fixing member 14.
The driven shaft 21 is rotatably supported coaxially with the rotor 4 by a bearing 22 press-fitted in the central hole and a bearing 23 press-fitted in the central hole of the rotor 4. Further, a pinion 24 having the same shape as a pinion that meshes with the input gear of the speed reducer and meshes with the internal teeth 6 is provided at the front end portion,
A hub 26 for supporting a leaf spring, which will be described later, is press-fitted and fixed to the knurled portion 25 between 22 and 23.
27は前記両摩擦面7,17間に臨むように配設された環状の
アーマチュアである。このアーマチュア27は一方のロー
タ4の摩擦面7に対向する部位に駆動面が形成され、他
方の固定部材14の摩擦面17に対向する部位に制動面が形
成されている。アーマチュア27の厚さおよび摩擦面7,17
の対向間隔はアーマチュア27が何れかの摩擦面と接触し
ているときに間隙gが設けられるように設定されてい
る。28はアーマチュア27を従動軸21上に支持する板ばね
である。この板ばね28は第2図に正面図を示すように、
円周方向に延在する環状の外周部28aおよび内周部28b
と、径方向に延在しこれらを連結する架橋部28cとから
全体が略円板状に形成されている。架橋部28cは円周方
向に等間隔をおいて3箇所に配置されている。そして外
周部28aの架橋部28cを外径方向に延長した部位には支持
用孔31が穿設され、内周部28bの架橋部28cを内径方向に
延長した部位には固定用孔32が穿設されている。すなわ
ち、板ばね28の外周部28aは支持用孔31を貫通するリベ
ット33でアーマチュア27の前面に固定され、内周部28b
は固定用孔32を貫通する固定ねじ34でハブ26の前面に固
定されており、架橋部28cが従動軸21の軸線方向へ弾性
変形することによってアーマチュア27を移動させる。本
実施例においては板ばね28の架橋部28cが径方向に延在
しているので、正逆回転いずれの方向においてもトルク
の伝達が行える。しかも架橋部28cを径方向に延長した
部位においてハブ26に固定し、アーマチュア27を支持す
るようにしたから、アーマチュア27とハブ26とを強固に
連結することができ、高トルクの伝達が行える。Reference numeral 27 is an annular armature arranged so as to face between the friction surfaces 7 and 17. The armature 27 has a drive surface formed at a portion facing the friction surface 7 of one rotor 4 and a braking surface formed at a portion facing the friction surface 17 of the other fixed member 14. Armature 27 thickness and friction surface 7,17
The facing distance is set so that the gap g is provided when the armature 27 is in contact with any friction surface. Reference numeral 28 is a leaf spring that supports the armature 27 on the driven shaft 21. This leaf spring 28, as shown in the front view in FIG.
An annular outer peripheral portion 28a and an inner peripheral portion 28b extending in the circumferential direction.
And a bridging portion 28c that extends in the radial direction and connects these to each other are formed in a substantially disc shape. The bridging portions 28c are arranged at three locations at equal intervals in the circumferential direction. A supporting hole 31 is formed in a portion of the outer peripheral portion 28a where the bridging portion 28c is extended in the outer diameter direction, and a fixing hole 32 is formed in a portion of the inner peripheral portion 28b where the bridging portion 28c is extended in the inner diameter direction. It is set up. That is, the outer peripheral portion 28a of the leaf spring 28 is fixed to the front surface of the armature 27 by the rivet 33 penetrating the supporting hole 31 and the inner peripheral portion 28b.
Is fixed to the front surface of the hub 26 by a fixing screw 34 penetrating the fixing hole 32, and the bridging portion 28c elastically deforms in the axial direction of the driven shaft 21 to move the armature 27. In this embodiment, since the bridging portion 28c of the leaf spring 28 extends in the radial direction, torque can be transmitted in both forward and reverse rotation directions. Moreover, since the bridging portion 28c is fixed to the hub 26 at the portion extending in the radial direction to support the armature 27, the armature 27 and the hub 26 can be firmly connected and high torque can be transmitted.
前記ハブ26の固定位置はその前面が固定部材14の摩擦面
17よりも前方になるように位置付けされている。このた
め板ばね28は架橋部28cが外径方向に向かうにしたがっ
て後方へ向かうように初期撓みが与えられており、常時
アーマチュア27を固定部材14に圧接させる方向に弾撥力
が作用している。The fixed position of the hub 26 is such that the front surface thereof is the friction surface of the fixed member 14.
It is positioned in front of 17. For this reason, the leaf spring 28 is given an initial deflection so that the bridging portion 28c moves backward as the bridging portion 28c moves toward the outer diameter direction, and the elastic force always acts in the direction in which the armature 27 is pressed against the fixing member 14. .
このように構成された電磁連結装置は、ハウジング12を
筐体としてこのハウジング12内に各構成部材を装着させ
て構成され、固定部材14がこの筐体の前部開口を塞ぐ蓋
体を兼ねる構造になっている。そして、この電磁連結装
置においては、電磁コイル2が励磁状態のときは磁束が
生じアーマチュア27をロータ4に磁気吸着することがで
きるために、ロータ4に入力されるトルクを従動軸21に
伝達することができる。一方、第1図に示すように電磁
コイル2が無励磁状態のときは、板ばね28の弾撥力によ
ってアーマチュア27が固定部材14に圧接されるため、従
動軸21は制動される。The electromagnetic coupling device configured as described above is configured such that the housing 12 is used as a housing and each component is mounted in the housing 12, and the fixing member 14 also serves as a lid that closes the front opening of the housing. It has become. In this electromagnetic coupling device, when the electromagnetic coil 2 is in the excited state, a magnetic flux is generated and the armature 27 can be magnetically attracted to the rotor 4. Therefore, the torque input to the rotor 4 is transmitted to the driven shaft 21. be able to. On the other hand, as shown in FIG. 1, when the electromagnetic coil 2 is in the non-excited state, the armature 27 is pressed against the fixing member 14 by the elastic force of the leaf spring 28, so that the driven shaft 21 is braked.
このとき、板ばね28は架橋部28cが前後方向に弾性変形
してアーマチュア27を従動軸21の軸線方向に移動させる
ことができる。また、板ばね28は円周方向に対しては大
きな剛性を有しているのでアーマチュア27と従動軸21と
はそれほど相対的に回転するようなことがない。At this time, in the leaf spring 28, the bridging portion 28c is elastically deformed in the front-rear direction to move the armature 27 in the axial direction of the driven shaft 21. Further, since the leaf spring 28 has a large rigidity in the circumferential direction, the armature 27 and the driven shaft 21 do not rotate so much relative to each other.
したがって、従来のようにバックラッシュを設ける必要
がなく、駆動あるいは制動時に部材同士が衝突するよう
なことがないから、異音の発生が防止できる。Therefore, it is not necessary to provide backlash as in the conventional case, and members do not collide with each other during driving or braking, so that generation of abnormal noise can be prevented.
なお、制動力の設定は、ロータ4とハブ26との間隙sを
変えることによって調整することができる。この調整は
例えばハブ26のローレット加工部25への圧入量、あるい
は軸受22と従動軸21との間に介装された図示しないシム
の厚さを変えることによって行うことができる。また、
ロータ4や固定部材14の摩擦面7,17とアーマチュア27の
駆動面や制動面が摩耗してロータ4とアーマチュア27と
の間の間隙gが増大した場合には、固定ボルト15と無頭
ねじ16を緩めて間隙gの増大分だけ固定部材14をロータ
4側へ移動させて調整する。調整後は、無頭ねじ16を固
定部材14の外周面に締め付けるとともに、固定ボルト15
をブラケット12に締め付けることにより調整作業が完了
する。The setting of the braking force can be adjusted by changing the gap s between the rotor 4 and the hub 26. This adjustment can be performed, for example, by changing the press-fitting amount of the hub 26 into the knurled portion 25 or the thickness of a shim (not shown) interposed between the bearing 22 and the driven shaft 21. Also,
When the friction surfaces 7 and 17 of the rotor 4 and the fixing member 14 and the driving and braking surfaces of the armature 27 are worn and the gap g between the rotor 4 and the armature 27 increases, the fixing bolt 15 and the headless screw 16 is loosened, and the fixing member 14 is moved toward the rotor 4 side by an amount corresponding to the increase of the gap g for adjustment. After adjustment, tighten the headless screw 16 to the outer peripheral surface of the fixing member 14 and fix the fixing bolt 15
The adjustment work is completed by fastening the to the bracket 12.
以上説明したように本考案によれば、回転自在に支持さ
れたロータと、このロータの摩擦面と軸線方向に間隔を
おいて対向する摩擦面を有する固定部材と、前記両摩擦
面間に臨み一方に駆動面を有し他方に制動面を有するア
ーマチュアと、前記ロータと前記固定部材の各中央孔に
圧入された軸受によりこれらロータと固定部材に回転自
在に支持された従動軸と、この従動軸上のハブに前記ア
ーマチュアを支持する板ばねと、前記アーマチュアをロ
ータに磁気吸着する磁束を発生させる電磁コイルと、こ
の電磁コイルが環状溝に装填されたフィールドコアと、
このフィールドコアの外周面が後部に嵌入保持されると
ともに前部には前記固定部材が進退自在に嵌入された非
磁性材のブラケットと、このブラケットに半径方向に螺
合され前記固定部材の外周面に当接する無頭ねじと、前
記固定部材を軸線方向に貫通し前記ブラケットに螺着さ
れる固定ボルトとを備え、前記板ばねの固定面となる前
記ハブの前面が前記固定部材の摩擦面より前方に構成さ
れ、前記板ばねに、前記アーマチュアの制動面を前記固
定部材の摩擦面に常時圧接させる方向に弾撥力が作用す
るように初期撓みを与えたため、板ばねを弾性変形させ
ることによってアーマチュアを従動軸の軸線方向に移動
させることができる。As described above, according to the present invention, a rotor rotatably supported, a fixed member having a friction surface axially opposed to the friction surface of the rotor, and a friction member facing the friction surface. An armature having a driving surface on one side and a braking surface on the other side, a driven shaft rotatably supported by the rotor and the fixing member by bearings press-fitted into the central holes of the rotor and the fixing member, and this driven shaft. A leaf spring that supports the armature on a hub on a shaft, an electromagnetic coil that generates a magnetic flux that magnetically attracts the armature to a rotor, and a field core in which the electromagnetic coil is loaded in an annular groove,
A bracket made of a non-magnetic material, in which the outer peripheral surface of the field core is fitted and held in the rear portion and the fixing member is fitted in the front portion so as to be able to move forward and backward, and the outer peripheral surface of the fixing member screwed in the bracket in the radial direction. A headless screw that abuts against, and a fixing bolt that penetrates the fixing member in the axial direction and is screwed to the bracket, and the front surface of the hub that is the fixing surface of the leaf spring is more than the friction surface of the fixing member. The leaf spring is configured to be forward, and the leaf spring is elastically deformed because an initial deflection is applied to the leaf spring so that an elastic force acts in a direction in which the braking surface of the armature is constantly pressed against the friction surface of the fixing member. The armature can be moved in the axial direction of the driven shaft.
したがって、従来のようにバックラッシュを設ける必要
がなく、駆動あるいは制動時に部材同士が衝突するよう
なことがないから、異音の発生が防止できる。また、ブ
ラケットの前部に固定部材を進退自在に嵌入させたた
め、電磁連結装置の蓋体として兼用される固定部材を、
ブラケットの嵌合面を案内面として軸線方向へ移動させ
ることができる。すなわち、ロータや固定部材の摩擦面
とアーマチュアの駆動面や制動面が摩耗してロータとア
ーマチュアとの間の間隙が増大した場合には、固定ボル
トと無頭ねじを緩めて間隙の増大分だけ固定部材をロー
タ側へ移動させて調整する。また、調整後は、無頭ねじ
を固定部材の外面に締め付けるとともに、固定ボルトを
ブラケットに締め付けることにより調整作業が完了す
る。Therefore, it is not necessary to provide backlash as in the conventional case, and members do not collide with each other during driving or braking, so that generation of abnormal noise can be prevented. Further, since the fixing member is fitted in the front portion of the bracket so as to be movable back and forth, the fixing member also serving as the lid of the electromagnetic coupling device is
It is possible to move the bracket in the axial direction using the fitting surface as a guide surface. That is, when the friction surface of the rotor or the fixed member and the driving surface or the braking surface of the armature are worn and the gap between the rotor and the armature increases, loosen the fixing bolt and the headless screw and increase the gap. Adjust the fixed member by moving it to the rotor side. After the adjustment, the headless screw is tightened to the outer surface of the fixing member, and the fixing bolt is tightened to the bracket to complete the adjustment work.
したがって、電磁連結装置の蓋体を兼ねる固定部材の位
置を変えることによりロータ、アーマチュア間の間隙を
調節することができるので、固定部材に制動用の摩擦面
を構成する機能と、電磁連結装置の蓋体としての機能
と、ロータとアーマチュア間の間隙を調節する機能とを
合わせもたせることができる。Therefore, since the gap between the rotor and the armature can be adjusted by changing the position of the fixing member that also serves as the lid of the electromagnetic coupling device, the function of forming a friction surface for braking on the fixing member and the electromagnetic coupling device The function as the lid and the function for adjusting the gap between the rotor and the armature can be combined.
このため、部品点数が削減され軽量小型な電磁連結装置
を得ることができる。しかも、ブラケットは非磁性材で
あり、電磁コイルの磁束がこのブラケットから固定部材
側へ漏洩することがないので、動作特性が良好な電磁連
結装置とすることができる。Therefore, it is possible to obtain a lightweight and compact electromagnetic coupling device in which the number of parts is reduced. Moreover, since the bracket is a non-magnetic material and the magnetic flux of the electromagnetic coil does not leak from the bracket to the fixed member side, it is possible to provide an electromagnetic coupling device having good operating characteristics.
第1図は本考案に係る電磁連結装置を示す半断面図、第
2図は板ばねを示す正面図である。 1……フィールドコア、2……電磁コイル、4……ロー
タ、14……固定部材、21……従動軸、27……アーマチュ
ア、28……板ばね。FIG. 1 is a half sectional view showing an electromagnetic coupling device according to the present invention, and FIG. 2 is a front view showing a leaf spring. 1 ... field core, 2 ... electromagnetic coil, 4 ... rotor, 14 ... fixed member, 21 ... driven shaft, 27 ... armature, 28 ... leaf spring.
Claims (1)
タの摩擦面と軸線方向に間隔をおいて対向する摩擦面を
有する固定部材と、前記両摩擦面間に臨み一方に駆動面
を有し他方に制動面を有するアーマチュアと、前記ロー
タと前記固定部材の各中央孔に圧入された軸受によりこ
れらロータと固定部材に回転自在に支持された従動軸
と、この従動軸上のハブに前記アーマチュアを支持する
板ばねと、前記アーマチュアをロータに磁気吸着する磁
束を発生させる電磁コイルと、この電磁コイルが環状溝
に装填されたフィールドコアと、このフィールドコアの
外周面が後部に嵌入保持されるとともに前部には前記固
定部材が進退自在に嵌入された非磁性材のブラケット
と、このブラケットに半径方向に螺合され前記固定部材
の外周面に当接する無頭ねじと、前記固定部材を軸線方
向に貫通し前記ブラケットに螺着される固定ボルトとを
備え、前記板ばねの固定面となる前記ハブの前面が前記
固定部材の摩擦面より前方に構成され、前記板ばねに
は、前記アーマチュアの制動面を前記固定部材の摩擦面
に常時圧接させる方向に弾撥力が作用するように初期撓
みが与えられていることを特徴とする電磁連結装置。1. A rotor rotatably supported, a fixing member having a friction surface opposed to the friction surface of the rotor at an axial distance, and a drive surface on one side facing between the friction surfaces. On the other hand, an armature having a braking surface on the other side, a driven shaft rotatably supported by the rotor and the fixing member by bearings press-fitted into the central holes of the rotor and the fixing member, and a hub on the driven shaft. A leaf spring that supports the armature, an electromagnetic coil that generates a magnetic flux that magnetically attracts the armature to the rotor, a field core in which the electromagnetic coil is loaded in an annular groove, and an outer peripheral surface of the field core is fitted and held in the rear portion. At the same time, a bracket made of a non-magnetic material, in which the fixing member is fitted in the front portion so as to be movable back and forth, and a bracket that is screwed in the bracket in the radial direction and is in contact with the outer peripheral surface of the fixing member. A screw and a fixing bolt that axially penetrates the fixing member and is screwed to the bracket, and the front surface of the hub that is the fixing surface of the leaf spring is configured in front of the friction surface of the fixing member, The electromagnetic coupling device according to claim 1, wherein the leaf spring is given an initial deflection so that an elastic force acts in a direction in which the braking surface of the armature is constantly in pressure contact with the friction surface of the fixing member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987137512U JPH0642105Y2 (en) | 1987-09-10 | 1987-09-10 | Electromagnetic coupling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987137512U JPH0642105Y2 (en) | 1987-09-10 | 1987-09-10 | Electromagnetic coupling device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6443233U JPS6443233U (en) | 1989-03-15 |
JPH0642105Y2 true JPH0642105Y2 (en) | 1994-11-02 |
Family
ID=31399001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987137512U Expired - Lifetime JPH0642105Y2 (en) | 1987-09-10 | 1987-09-10 | Electromagnetic coupling device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0642105Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010216660A (en) * | 2010-06-28 | 2010-09-30 | Toyota Motor Corp | Electromagnetic dual clutch |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05229101A (en) * | 1992-02-20 | 1993-09-07 | Manabu Fukuda | Inking device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58158823U (en) * | 1982-04-20 | 1983-10-22 | 株式会社椿本チエイン | Armature support structure for electromagnetic clutches and brakes |
-
1987
- 1987-09-10 JP JP1987137512U patent/JPH0642105Y2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010216660A (en) * | 2010-06-28 | 2010-09-30 | Toyota Motor Corp | Electromagnetic dual clutch |
Also Published As
Publication number | Publication date |
---|---|
JPS6443233U (en) | 1989-03-15 |
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