JPH0518262U - Eddy current reducer rotor - Google Patents

Eddy current reducer rotor

Info

Publication number
JPH0518262U
JPH0518262U JP072377U JP7237791U JPH0518262U JP H0518262 U JPH0518262 U JP H0518262U JP 072377 U JP072377 U JP 072377U JP 7237791 U JP7237791 U JP 7237791U JP H0518262 U JPH0518262 U JP H0518262U
Authority
JP
Japan
Prior art keywords
rotor
outer cylinder
eddy current
cylinder
inner cylinder
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
Application number
JP072377U
Other languages
Japanese (ja)
Inventor
健詞 荒木
光雄 宮原
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP072377U priority Critical patent/JPH0518262U/en
Publication of JPH0518262U publication Critical patent/JPH0518262U/en
Pending legal-status Critical Current

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  • Braking Arrangements (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

(57)【要約】 【目的】 ローターが高温にさらされた場合の熱的塑性
変形の発生を防止する。 【構成】 隣接する磁石の極性を互いに逆向きとした複
数個の電磁石17を周設した支持リング14を、電磁石
の極面が所要空隙でローターに磁気的に対向するように
設ける。外筒2に対向する内筒3の筒端外周面に長方形
断面の支持金物7の複数個を、その長辺を円周方向に向
けて等間隔に突設し、該支持金物7の両側表面とアーム
内端側に設けた支持片8との間にそれぞれゴムブッシュ
9を介して弾性支持して放射状に配設した多数のアーム
4により外筒2と内筒3の筒端間を接続する。 【効果】 外筒とアームの接合部に発生する応力を弾性
限界内に軽減し、ローターの熱影響による損傷を防止す
る。
(57) [Summary] [Purpose] To prevent the occurrence of thermal plastic deformation when the rotor is exposed to high temperatures. [Structure] A support ring 14 around which a plurality of electromagnets 17 in which the polarities of adjacent magnets are opposite to each other are provided is provided so that the pole faces of the electromagnets are magnetically opposed to a rotor with a required gap. A plurality of supporting metal pieces 7 having a rectangular cross section are provided on the outer peripheral surface of the inner end of the inner cylinder 3 facing the outer cylinder 2 at equal intervals so that the long sides thereof extend in the circumferential direction. The outer cylinder 2 and the inner cylinder 3 are connected to each other by a large number of arms 4 which are elastically supported via a rubber bush 9 and are radially arranged between the outer cylinder 2 and the support piece 8 provided on the inner end side of the arm. .. [Effect] The stress generated at the joint between the outer cylinder and the arm is reduced to within the elastic limit, and damage due to the heat effect of the rotor is prevented.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

この考案は、バスやトラックなどの大型自動車に使用される渦電流式減速装置 のローターの改良に関する。 The present invention relates to an improvement in the rotor of an eddy current type speed reducer used in large vehicles such as buses and trucks.

【0002】[0002]

【従来の技術】[Prior Art]

大型自動車の制動装置ないし減速装置としては、主ブレーキであるフートブレ ーキ、補助ブレーキである排気ブレーキのほか、長い坂道の降坂時などで安定し た減速を行い、かつフートブレーキの焼損を防止するための渦電流式減速装置が 使用されている。 As a braking device or speed reducer for large vehicles, in addition to the foot brake, which is the main brake, and the exhaust brake, which is an auxiliary brake, stable deceleration is performed when descending a long slope, and burnout of the foot brake is prevented. An eddy current type speed reducer is used for this purpose.

【0003】 上記渦電流式減速装置には、電磁石を使ったものと、永久磁石を使ったものと がある。 前者の渦電流式減速装置は、鉄心に電磁コイルを巻着した電磁石を磁極とし、 その磁極の多数をディスクの両面に配設してなり、バッテリー電源からの通電に より磁界を発生させ、渦電流現象によりディスクを減速させる方向にトルクを発 生させて制動力を得るものである(特開昭50−615774号公報)。The eddy current type speed reducer includes one using an electromagnet and one using a permanent magnet. The former eddy current type speed reducer uses electromagnets in which an electromagnetic coil is wound around an iron core as magnetic poles, and many of the magnetic poles are arranged on both sides of the disk. A torque is generated in the direction of decelerating the disk by an electric current phenomenon to obtain a braking force (Japanese Patent Laid-Open No. 615774/50).

【0004】 後者の渦電流式減速装置は、回転軸の片側端部にローターを嵌着し、隣接する 磁石の極性が互いに逆向きとなるようにして複数の永久磁石を周設した磁石支持 リングを、上記回転軸の軸線方向に永久磁石の極面が所要空隙でローターに磁気 的に全面対向する位置から全面離脱する位置までの長さを進退自在に設けた装置 からなる(特開平1−234043号公報)。The latter eddy current type speed reducer is a magnet support ring in which a rotor is fitted to one end of a rotary shaft and a plurality of permanent magnets are provided so that adjacent magnets have opposite polarities. And a device in which the pole surface of the permanent magnet is provided in the axial direction of the rotating shaft so as to be able to advance and retreat from a position where the pole surface of the permanent magnet magnetically faces the rotor at a required gap to a position where the pole face is completely separated (Japanese Patent Laid-Open No. 234043).

【0005】 上記渦電流式減速装置のローターは、渦電流の発生に伴い急激に温度が上昇し 、使用条件によっては600℃以上の高温に達する。そのため、装置の熱容量、 剛性など十分に大きくとり、熱影響によりローターが変形しないようにする必要 があり、必然的に装置の重量が増大する。The temperature of the rotor of the eddy current type speed reducer rapidly rises with the generation of the eddy current, and reaches a high temperature of 600 ° C. or higher depending on usage conditions. Therefore, it is necessary to make the heat capacity and rigidity of the device sufficiently large so that the rotor is not deformed by the influence of heat, which inevitably increases the weight of the device.

【0006】 一方、車両の性能を向上させるため、装置の軽量化、単純化が図られている。 その結果、渦電流式減速装置のローターの熱容量が減少し、剛性も低下するため 、温度上昇に伴う熱影響による変形が問題となってきている。 すなわち、ローターが高温にさらされ温度が上昇すると、ローターの外筒部と 支持アームとの接合部付近が高い応力分布となり、ローターの外筒部には塑性変 形が生じることがある。On the other hand, in order to improve the performance of the vehicle, the weight and simplification of the device have been attempted. As a result, the heat capacity of the rotor of the eddy current type speed reducer decreases, and the rigidity also decreases, so deformation due to thermal effects due to temperature rise is becoming a problem. That is, when the rotor is exposed to a high temperature and its temperature rises, a high stress distribution is generated in the vicinity of the joint between the outer cylinder of the rotor and the support arm, and plastic deformation may occur in the outer cylinder of the rotor.

【0007】[0007]

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

上記のごとく、従来の渦電流式減速装置は、ローターの温度が上昇した場合、 熱的塑性変形が生じることが問題となっていた。 この考案は、上記熱的塑性変形の発生を阻止するため、ローターの外筒部が高 温にさらされ膨張変形しても、ローターの外筒部と支持アームの接合部における 応力分布状態をローターの外筒部の弾性限界内に止めるようにした渦電流式減速 装置のローターを提供することにある。 As described above, the conventional eddy current type speed reducer has a problem that thermal plastic deformation occurs when the temperature of the rotor rises. In order to prevent the above-mentioned thermal plastic deformation from occurring, the present invention prevents the rotor outer cylinder from being exposed to high temperature and expanding and deforming so that the stress distribution state at the joint between the outer cylinder of the rotor and the support arm can be kept constant. The object is to provide a rotor for an eddy current type speed reducer in which the outer cylinder part is stopped within the elastic limit.

【0008】[0008]

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

上記目的を達成するため、この考案の電磁石を使用した渦電流式減速装置のロ ーターは、回転軸の片側端部に外筒と内筒から円筒部を形成したローターを嵌着 し、隣接する磁石の極性が互いに逆向きとなるよう複数の電磁石を周設した支持 リングを、電磁石の極面が所要空隙でローターに磁気的に対向するよう設けた渦 電流式減速装置において、内筒の筒端外周面に長方形断面の支持金物の複数個を 、その長辺を円周方向に向けて等間隔に突設し、該支持金物の両側表面との間に 、それぞれゴムブッシュにより弾性支持して放射状に配置された多数のアームに より外筒と内筒の筒端間を接続するのである。 In order to achieve the above object, a rotor of an eddy current type speed reducer using an electromagnet of the present invention has a rotor formed by forming an outer cylinder and an inner cylinder into a rotor at one end of a rotary shaft and is adjacent to the rotor. In an eddy current type speed reducer in which a support ring around which a plurality of electromagnets are provided so that the polarities of the magnets are opposite to each other is provided so that the pole faces of the electromagnets are magnetically opposed to the rotor with a required gap, the inner cylinder A plurality of supporting metal pieces having a rectangular cross section are provided on the outer peripheral surface at equal intervals with their long sides oriented in the circumferential direction, and elastically supported by rubber bushes between the both side surfaces of the supporting metal pieces. The ends of the outer and inner cylinders are connected by a large number of radially arranged arms.

【0009】[0009]

【作用】[Action]

ローターの円筒部を形成する外筒と内筒の間は、内筒との間に円周方向に向け た2枚一対のゴムブッシュにより弾性支持されたアームで接続されているため、 ローターの外筒部が高温となり、熱影響により膨張変形しても、アームはその変 形に追従してゴムブッシュの剪断力に抗して伸縮する。このため、ローターの外 筒部に塑性変形が生じるのを防止することができる。また、制動オン・オフ切替 え操作に伴う回転方向のショックトルクを吸収することができるから、その際の ショックは車両に伝わることなく、円滑な制動が得られる。 The outer cylinder and the inner cylinder that form the cylindrical portion of the rotor are connected to the inner cylinder by an arm elastically supported by a pair of rubber bushes oriented in the circumferential direction. Even if the tubular part becomes hot and expands and deforms due to heat, the arm follows the deformation and expands and contracts against the shearing force of the rubber bush. Therefore, it is possible to prevent the plastic deformation of the outer cylindrical portion of the rotor. Also, since it is possible to absorb the shock torque in the rotation direction due to the braking on / off switching operation, the shock at that time is not transmitted to the vehicle, and smooth braking can be obtained.

【0010】[0010]

【実施例】【Example】

実施例1 この考案の実施例を図面に基いて説明する。図1はその装置全体の断面図、図 2は片側半部を示す側面図、図3、図4はアーム接合部の詳細を示す部分拡大図 である。 回転軸11の片側端部に嵌着した支持部材12にローター1の取付け円板6を 複数のボルト19により取着する。 Embodiment 1 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of the entire apparatus, FIG. 2 is a side view showing one half portion, and FIGS. 3 and 4 are partially enlarged views showing details of an arm joint portion. The mounting disk 6 of the rotor 1 is attached to the support member 12 fitted to one end of the rotary shaft 11 with a plurality of bolts 19.

【0011】 上記ローター1は、外筒2と内筒3を所要の空間を持って対向させ円筒部を形 成し、内筒3の外側端にゴムブッシュ9を介し弾性支持して放射状に配置された アーム4により、外筒2と内筒3との筒端間を接続し、外筒2の外周面に冷却フ イン5の多数を配設し、かつ内筒3の内側端に取付け板6を設けてなる。In the rotor 1, the outer cylinder 2 and the inner cylinder 3 are opposed to each other with a required space to form a cylindrical portion, and the outer end of the inner cylinder 3 is elastically supported via a rubber bush 9 and arranged radially. The outer cylinder 2 and the inner cylinder 3 are connected to each other by means of the arm 4, and a large number of cooling fins 5 are arranged on the outer peripheral surface of the outer cylinder 2 and the mounting plate is attached to the inner end of the inner cylinder 3. 6 is provided.

【0012】 上記アーム4と内筒3との支持部は、図3、図4に詳細に示すように、アーム 4の内端部に設けた一対の支持片8と内筒3に設けた支持金物7との間に一対の ゴムブッシュ9を介在してなり、外筒2が熱膨脹したとき、アーム4がゴムブッ シュ9の剪断力に抗して外筒2側へ引き出されるように構成される。As shown in detail in FIGS. 3 and 4, the support portion between the arm 4 and the inner cylinder 3 is a pair of support pieces 8 provided at the inner end portion of the arm 4 and a support provided on the inner cylinder 3. A pair of rubber bushes 9 are interposed between the metal 7 and the armature 4 so that when the outer cylinder 2 is thermally expanded, the arm 4 is pulled out to the outer cylinder 2 side against the shearing force of the rubber bush 9. .

【0013】 上記外筒2と内筒3との間の空間には、回転軸11に軸受18を介して軸支さ れた支持部材13の外周に支持リング14が形成され、支持リング14の外周面 には鉄心15に電磁コイル16を巻着した電磁石17の複数個を隣接する電磁石 の磁極が互いに逆向きとなるように周設されている。なお、この電磁石17は、 バッテリー電源からの通電により磁界が発生するよう構成されている。In the space between the outer cylinder 2 and the inner cylinder 3, a support ring 14 is formed on the outer periphery of a support member 13 axially supported by the rotary shaft 11 via a bearing 18, and the support ring 14 is On the outer peripheral surface, a plurality of electromagnets 17 each having an electromagnetic coil 16 wound around an iron core 15 are circumferentially provided so that the magnetic poles of adjacent electromagnets are opposite to each other. The electromagnet 17 is configured to generate a magnetic field when energized by a battery power source.

【0014】 上記減速装置は、例えば支持部材13に設けた取付け金具(図面省略)を車体 へ取付け、回転軸11をプロペラシャフトに接続して使用される。The speed reducer is used, for example, by attaching a mounting bracket (not shown) provided on the support member 13 to the vehicle body and connecting the rotating shaft 11 to the propeller shaft.

【0015】 電磁石17が節電されているときは、ローター1は所定のトルクで回転してお り、いわゆる制動オフの状態にある。When the electromagnet 17 is saving power, the rotor 1 is rotating with a predetermined torque, and is in a so-called braking off state.

【0016】 この制動オフの状態で、電磁石17に通電すれば、隣接する電磁石17とロー ターの外筒2との間に磁気回路が形成され、外筒2には渦電流が流れ、いわゆる 制動オンの状態となり、制動トルクが発生して車両は大きく減速する。When the electromagnet 17 is energized in this braking-off state, a magnetic circuit is formed between the adjacent electromagnet 17 and the outer cylinder 2 of the rotor, and an eddy current flows in the outer cylinder 2, so-called braking The vehicle is turned on, braking torque is generated, and the vehicle is greatly decelerated.

【0017】 上記制動操作を繰り返すと、渦電流により発生した熱量が蓄積されるため、使 用条件によってはローターの外筒2は非常に高温となる。このとき、アーム4は ゴムブッシュ9の剪断力に抗し、外筒2の変形に追従して引き動かされる。この 結果、外筒2とアーム4との接合部付近の応力発生を軽減し、弾性限界内に止め ることができる。When the above braking operation is repeated, the amount of heat generated by the eddy current is accumulated, so that the outer cylinder 2 of the rotor becomes extremely hot depending on the usage conditions. At this time, the arm 4 resists the shearing force of the rubber bush 9 and is pulled along with the deformation of the outer cylinder 2. As a result, it is possible to reduce the stress generation in the vicinity of the joint between the outer cylinder 2 and the arm 4 and keep it within the elastic limit.

【0018】[0018]

【考案の効果】[Effect of the device]

この考案の渦電流式減速装置のローターは、ローターの円筒部を形成する外筒 と内筒との間をゴムブッシュにより弾性支持されたアームで接続し、外筒の熱膨 張による変形をアームが追従して引出されるように構成されており、、外筒とア ームの接合部に発生する応力を弾性限度内に軽減することができ、ローターの熱 影響による損傷を防止することができる。 In the rotor of the eddy current type speed reducer of the present invention, the outer cylinder forming the cylindrical portion of the rotor and the inner cylinder are connected by an arm elastically supported by a rubber bush so that the outer cylinder is not deformed by thermal expansion. Is configured to be pulled out following, and the stress generated at the joint between the outer cylinder and the arm can be reduced to within the elastic limit, and damage due to the thermal effect of the rotor can be prevented. it can.

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

【図1】この考案の実施による電磁石を使用した渦電流
式減速装置の断面図である。
FIG. 1 is a sectional view of an eddy current type speed reducer using an electromagnet according to an embodiment of the present invention.

【図2】図1におけるローターの半部を示す正面図であ
る。
FIG. 2 is a front view showing a half portion of the rotor in FIG.

【図3】図1におけるアーム部分の詳細を示す拡大断面
図である。
FIG. 3 is an enlarged sectional view showing details of an arm portion in FIG.

【図4】図3のA−A線上の横断面図である。4 is a cross-sectional view taken along the line AA of FIG.

【符号の説明】 1 ローター 2 外筒 3 内筒 4 アーム 5 冷却フイン 6 取付け円板 7 支持金物 8 支持片 9 ゴムブッシュ 10 ポールピース 11 回転軸 12 支持部材 13 支持部材 14 支持リング 15 鉄心 16 電磁コイル 17 電磁石 18 軸受 19 ボルト[Explanation of symbols] 1 rotor 2 outer cylinder 3 inner cylinder 4 arm 5 cooling fin 6 mounting disk 7 support metal 8 support piece 9 rubber bush 10 pole piece 11 rotating shaft 12 support member 13 support member 14 support ring 15 iron core 16 electromagnetic Coil 17 Electromagnet 18 Bearing 19 Volt

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 回転軸の片側端部に外筒と内筒から円筒
部を形成したローターを嵌着し、隣接する磁石の極性が
互いに逆向きとなるよう複数個の電磁石を周設した支持
リングを、電磁石の極面が所要空隙でローターに磁気的
に対向するよう設けた渦電流式減速装置において、内筒
の筒端外周面に長方形断面の支持金物の複数個を、その
長辺を円周方向に向けて等間隔に突設し、該支持金物の
両側表面との間にそれぞれゴムブッシュを介し弾性支持
して放射状に配設された多数のアームにより外筒と内筒
の筒端間を接続した渦電流式減速装置のローター。
1. A support in which a rotor in which a cylindrical portion is formed from an outer cylinder and an inner cylinder is fitted to one end of a rotating shaft, and a plurality of electromagnets are circumferentially arranged so that the polarities of adjacent magnets are opposite to each other. In an eddy current type speed reducer in which the pole surface of the electromagnet is magnetically opposed to the rotor with a required air gap, a plurality of supporting metal objects having a rectangular cross section are formed on the outer peripheral surface of the inner end of the inner cylinder, Tube ends of the outer cylinder and the inner cylinder are projected by equal intervals in the circumferential direction, and are elastically supported by rubber arms between each side surface of the support metal and radially arranged by a large number of arms. The rotor of the eddy current type speed reducer connecting the two.
JP072377U 1991-08-14 1991-08-14 Eddy current reducer rotor Pending JPH0518262U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP072377U JPH0518262U (en) 1991-08-14 1991-08-14 Eddy current reducer rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP072377U JPH0518262U (en) 1991-08-14 1991-08-14 Eddy current reducer rotor

Publications (1)

Publication Number Publication Date
JPH0518262U true JPH0518262U (en) 1993-03-05

Family

ID=13487552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP072377U Pending JPH0518262U (en) 1991-08-14 1991-08-14 Eddy current reducer rotor

Country Status (1)

Country Link
JP (1) JPH0518262U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013521749A (en) * 2010-05-03 2013-06-10 新日鐵住金株式会社 Rotor for permanent magnet retarder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937887B2 (en) * 1978-01-17 1984-09-12 株式会社精工舎 filter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937887B2 (en) * 1978-01-17 1984-09-12 株式会社精工舎 filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013521749A (en) * 2010-05-03 2013-06-10 新日鐵住金株式会社 Rotor for permanent magnet retarder

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