JPH01316558A - Device for limiting transmission of torque - Google Patents

Device for limiting transmission of torque

Info

Publication number
JPH01316558A
JPH01316558A JP14938188A JP14938188A JPH01316558A JP H01316558 A JPH01316558 A JP H01316558A JP 14938188 A JP14938188 A JP 14938188A JP 14938188 A JP14938188 A JP 14938188A JP H01316558 A JPH01316558 A JP H01316558A
Authority
JP
Japan
Prior art keywords
torque
friction
spline shaft
friction mechanism
upper limit
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
JP14938188A
Other languages
Japanese (ja)
Inventor
Terunobu Suzuki
鈴木 照伸
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14938188A priority Critical patent/JPH01316558A/en
Publication of JPH01316558A publication Critical patent/JPH01316558A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
    • F16D7/024Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces
    • F16D7/025Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces with flat clutching surfaces, e.g. discs
    • F16D7/027Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces with flat clutching surfaces, e.g. discs with multiple lamellae

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

PURPOSE:To keep a transmitting torque nearly at a constant value within a limited value by providing balls for moving an internal spline shaft so as to reduce the upper limit value of a torque transmitted by a friction mechanism. CONSTITUTION:A friction board 2 with internal teeth is engaged with an external spline shaft 8 while engaging a friction board 4 with external teeth with an internal spline shaft 9, each slidably in the axial direction. When a torque transmitted via ball 14 is increased, a spacer 11 is moved in the axial direction against the spring pressure of a disk spring 5 via the internal spline shaft 9. The contact pressure between the friction board 2 with internal teeth and the friction board 4 with external teeth is reduced, reducing the upper limit value of the transmissible torque of a friction mechanism 4a. Thereby, the transmitting torque can be kept nearly at a constant value with a limited value.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は過大トルクの伝達を防止するトルク伝達制限
袋RK関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a torque transmission limiting bag RK that prevents transmission of excessive torque.

〔従来の技術〕[Conventional technology]

重量物の移動や持上用の装置には安全上過負荷防止用ト
ルクリミッタとして伝達トルクの大きさを制限するトル
ク伝達制限装置が用いられている。
2. Description of the Related Art Torque transmission limiting devices that limit the magnitude of transmitted torque are used as torque limiters to prevent overloads for safety reasons in devices for moving or lifting heavy objects.

第3図は従来のトルク伝達制限装置の断面図であり1図
において、(1)は外歯スプライン軸、(2)はこの外
歯スプライン軸(1)に軸方向に摺動自在に噛合された
内歯付摩擦板、(3)け内歯スプライン軸。
Fig. 3 is a sectional view of a conventional torque transmission limiting device. In Fig. 1, (1) is an externally toothed spline shaft, and (2) is slidably engaged with this externally toothed spline shaft (1) in the axial direction. Friction plate with internal teeth, (3) spline shaft with internal teeth.

+4)はこの内歯スプライン軸(3)に軸方向に摺動自
在に噛合され、かつ上記内歯付摩擦板(2)とそれぞれ
の摩擦面が接触するように配役された外歯付摩擦板、(
5)は上記内歯付摩擦板(2)と外歯付摩擦板(4)を
圧接する皿ばね、CG)はこの皿ばね(5)の付勢ばね
力を調整するための上記外歯スプライン1lII[1)
に螺合したナツト、(7)はストッパーである。
+4) is an externally toothed friction plate which is slidably engaged with this internally toothed spline shaft (3) in the axial direction and is arranged so that its respective friction surface is in contact with the internally toothed friction plate (2). ,(
5) is a disc spring that presses the internal toothed friction plate (2) and external toothed friction plate (4), and CG) is the external spline for adjusting the biasing spring force of this disc spring (5). 1lII[1]
The nut screwed into (7) is a stopper.

次に動作について説明する。外歯スプライン軸(1)ト
内歯スプライン軸(3)のいずれかから他方への回転に
伴うトルクの伝達は皿ばね(5)により圧接さ    
□れて発生する内歯付摩擦板(2)と外歯付摩擦板(4
)との間の摩擦面に働く摩擦力により伝達される。それ
ゆえに、ナツト(6)を調整して上記面ばね(5)Kよ
り上記内歯付摩擦板(2)と外歯付摩擦板(4)間の接
触圧を適切に設定することにより伝達可能トルクの上限
値がこの伝達トルクの制限値として設定され。
Next, the operation will be explained. Transmission of torque accompanying rotation from either the external spline shaft (1) or the internal spline shaft (3) to the other is carried out by a disc spring (5).
□Friction plate with internal teeth (2) and friction plate with external teeth (4)
) is transmitted by the frictional force acting on the frictional surface between the Therefore, transmission is possible by adjusting the nut (6) and appropriately setting the contact pressure between the internally toothed friction plate (2) and the externally toothed friction plate (4) from the surface spring (5) K. The upper limit value of torque is set as the limit value of this transmission torque.

定常トルクの場合には正常に伝達され、上記設定された
制限値を超える過大トルクが作用し念場合には上記摩擦
板12)、 +41間で滑りを発生させて上記過大トル
クの伝達を上記制限された上限値以内に制限する。
In the case of steady torque, it is transmitted normally, but in case an excessive torque exceeding the set limit value is applied, slippage is generated between the friction plates 12) and +41 to prevent the transmission of the excessive torque. limit within the specified upper limit.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従来のトルク伝達制限装置は以上のように構成されてい
るので、内歯付摩擦板(2)と外歯付摩擦板(4)との
接触圧が皿ばね(5)のばね圧により一義的に設定され
、伝達トルクの制限値である伝達可能トルクの上限値を
超え念過大なトルクが作用している間、上記摩擦板12
)、 +41の接触面間において連続して滑り続ける念
めに発生した摩擦熱により昇温してその摩擦係数が変化
し、上記伝達可能トルクの上限値が変動するという問題
点があった。
Since the conventional torque transmission limiting device is configured as described above, the contact pressure between the internally toothed friction plate (2) and the externally toothed friction plate (4) is uniquely determined by the spring pressure of the disc spring (5). The friction plate 12 is set to
), +41 contact surfaces due to continuous sliding, which causes the temperature to rise and the coefficient of friction to change, causing a problem in that the upper limit of the transmittable torque fluctuates.

この発明は上記のような問題点を解決するためになされ
たもので過大トルクが連続して作用しても、伝達トルク
を制限値以内に保持することができるトルク伝達制限装
置を得ることを目的とする。
This invention was made in order to solve the above-mentioned problems, and the object is to obtain a torque transmission limiting device that can maintain the transmitted torque within a limit value even if excessive torque acts continuously. shall be.

〔課題を解決するための手段〕[Means to solve the problem]

この発明に係るトルク伝達制限装置は第1および第2の
回転−と1弾性体が及ぼす押圧力による摩擦力に応じて
伝達するトルクの上限値が変化する摩擦機W、=、  
この摩擦機構を介して上記@1の回転軸側と連結され、
一端が上記第2の回転軸と対向すると共に他端が上記弾
性体と係合する第1のトルク伝達手段布、この第1のト
ルク伝達手段と上記第2の回転軸間に配され、この間で
トルクを伝達すると共にこのトルクの増加に応じて上記
摩擦機構に及ぼす押圧力を減少させ、この摩擦機構が伝
達するトルクの上限値を減少させるように上記第1のト
ルク伝達手段をsf#hさせる第2のトルク伝達手段と
を備えたものでちる。
The torque transmission limiting device according to the present invention is a friction machine W, in which the upper limit value of the torque to be transmitted changes depending on the frictional force caused by the pressing force exerted by the first and second rotating bodies and the first elastic body.
Connected to the rotating shaft side of @1 through this friction mechanism,
a first torque transmitting means cloth having one end facing the second rotating shaft and the other end engaging the elastic body; disposed between the first torque transmitting means and the second rotating shaft; The first torque transmitting means is configured to transmit torque at sf#h, reduce the pressing force exerted on the friction mechanism in accordance with the increase in torque, and reduce the upper limit of the torque transmitted by this friction mechanism. and a second torque transmission means for transmitting the torque.

〔作用〕[Effect]

この発明においては2弾性体が及ぼす押圧力による摩擦
力に応じて摩擦機構の伝達可能トルクの上限値が定まり
、この伝達可能トルクの範囲で上記摩擦機構は第1の回
転軸と第1のトルク伝達手段間でトルクを伝達し、この
第1のトルク伝達手段と第2の回転軸間に配された第2
のトルク伝達手段が、この間でトルクを伝達すると共に
このトルクの増加に応じて上記第1のトルク伝達手段を
移動させ、この第1のトルク伝達手段の移動により上記
摩擦機構を押圧する弾性体の押圧力を減少させ、上記摩
擦機構が伝達するトルクの上限値を減少する。
In this invention, the upper limit of the transmittable torque of the friction mechanism is determined according to the frictional force due to the pressing force exerted by the two elastic bodies, and within this transmittable torque range, the friction mechanism can transfer the first rotating shaft and the first torque. The torque is transmitted between the transmission means, and the second torque transmission means is arranged between the first torque transmission means and the second rotating shaft.
The torque transmitting means transmits torque between them, and moves the first torque transmitting means in response to an increase in this torque, and the elastic body presses the friction mechanism due to the movement of the first torque transmitting means. The pressing force is reduced, and the upper limit value of the torque transmitted by the friction mechanism is reduced.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明の実施例を第1図、第2図により説明す
る。なお従来のものと同一符号で表わしたものは従来例
のそれと同一、もしくは従来例のそれだ相当するものを
示す。
Embodiments of the present invention will be described below with reference to FIGS. 1 and 2. Note that the same reference numerals as those in the conventional example indicate the same or equivalent elements.

第1図はこの発明の一実施例であるトルク伝達制限装置
の断面図であり1図において(8)は@10回転軸とし
ての外歯スプライン軸、(9)は第1のトルク伝達手段
としての内歯スプライン軸であり。
Fig. 1 is a sectional view of a torque transmission limiting device which is an embodiment of the present invention. This is an internal spline shaft.

上記外歯スプライン軸(8)に空間を設けて同心状に配
されている。上記外歯スプライン軸(8)にはドーナツ
状の内周に内歯を有する内歯付摩擦板(2)が。
They are arranged concentrically with a space provided on the external spline shaft (8). The externally toothed spline shaft (8) has an internally toothed friction plate (2) having internal teeth on the inner periphery of a donut shape.

上記内歯スプライン4110) Kは外周に外歯を有す
る外歯付摩擦板(4)がそれぞれ軸方向に摺動自在忙噛
合されており、上記摩擦板+21. +41のそれぞれ
の摩擦面が他方と接触するように交互に配設されて摩擦
機構(48)を構成している。、11は第2の回転軸と
してのフランジ軸であり、この7ランジ軸醐の7ランク
面(10a)が上記内歯スプライン軸(9)の−方のm
端面(9a) に対向している。anはこの内歯スプラ
イン軸(9)の他端面(9b)および上記摩擦機構(4
a)の一端部に係合したスペーサ、(5)は弾性体とし
ての皿ばねであり、上記スペーサIを介して上記摩擦機
構(4日)および内歯スプライン軸(9)を上記7ラン
ジ軸(11の7ランク面(toa)@に抑圧している。
The internally toothed spline 4110) K has externally toothed friction plates (4) each having external teeth on the outer periphery and are engaged with each other so as to be freely slidable in the axial direction, and the friction plates +21. +41 are arranged alternately so that each friction surface contacts the other to constitute a friction mechanism (48). , 11 is a flange shaft as a second rotating shaft, and the 7-rank surface (10a) of this 7-lunge shaft is the -m of the internal spline shaft (9).
It faces the end face (9a). an is the other end surface (9b) of this internal spline shaft (9) and the friction mechanism (4).
The spacer (5) engaged with one end of a) is a disc spring as an elastic body, and the friction mechanism (4) and the internal spline shaft (9) are connected to the seven lunge shafts via the spacer I. (It is suppressed to 7 rank surface (TOA) @ of 11.

aりは上記面ばね(5)のばねストッパーであり、上記
フランジ軸α・に形成された円筒部(1ab)に螺合さ
れている。
Reference character a is a spring stopper for the surface spring (5), which is screwed into the cylindrical portion (1ab) formed on the flange axis α.

0は上記フランジ軸(IOのフランジ軸(10a)と上
記摩擦機構(4a)の他端部間に配設されたスラスト軸
受である。上記摩擦機構(4a)は上記のごと(上記ス
ペーサaOを介して皿ばね(5)により押圧されており
、上記内歯性および外歯付摩擦板+2+、 +4+間の
櫻触圧は上記ばねストッパー13により任意に設定され
る。なお、上記摩擦機構(4a)の両端部は上記内歯ス
プライン軸(9)と噛合された外歯付摩擦板(4)がそ
れぞれ配されて形成されており、その一方の端部は上記
スペーサσDが、他端部は上記スラスト軸受0と接して
いる。
0 is a thrust bearing disposed between the flange shaft (10a) of the flange shaft (IO) and the other end of the friction mechanism (4a). The contact pressure between the internally toothed and externally toothed friction plates +2+ and +4+ is arbitrarily set by the spring stopper 13.The friction mechanism (4a) ) are formed with externally toothed friction plates (4) meshed with the internally toothed spline shaft (9), one end of which is provided with the spacer σD, and the other end is provided with the spacer σD. It is in contact with the thrust bearing 0 mentioned above.

上記内歯スプライン軸(9)の軸端(9a)およびこの
軸1(9a)  に当接するフランジ軸(IOのフラン
ジ面(10a )には、これ等+9)、 Ql)の軸芯
を中心とした同一円周上の対応する面に、それぞれ頂角
が略直角の円錐面を有するくぼみ部(9c) 、 (I
nc)が少くとも3組以上軸対称にバランス良く形成さ
れ、この対をなすくぼみ部(9c)、 (1oc)によ
り形成される空間部には第2のトルク伝達手段としての
ボールα4が上記空間部の円錐面ば内接するように挿入
配設されている。
The shaft end (9a) of the internal spline shaft (9) and the flange shaft that abuts this shaft 1 (9a) (the flange surface (10a) of the IO has +9), Ql) with the shaft center as the center. The recessed portions (9c) and (I
At least three pairs of nc) are formed axially symmetrically and in a well-balanced manner, and a ball α4 as a second torque transmitting means is inserted into the space formed by the pair of recesses (9c) and (1oc). The conical surface of the section is inserted so as to be inscribed therein.

以下、この実施例の動作について説明する。第1図にお
いて2回転を伝達するトルクが第1の回転軸としての外
歯スプライン軸(8)から摩擦機構(4a)をtjIf
成する内歯付摩擦板12)および外歯付摩擦板(4)、
第1のトルク伝達手段である内歯スプライン軸(9)、
¥J2のトルク伝達手段であるボール04等を介して溝
2の回転軸止してのフランジ@(1Gへ伝達されるもの
と仮定する。
The operation of this embodiment will be explained below. In Fig. 1, the torque transmitting two rotations from the external spline shaft (8) as the first rotating shaft to the friction mechanism (4a) is tjIf.
an internally toothed friction plate 12) and an externally toothed friction plate (4),
an internal spline shaft (9) which is a first torque transmission means;
It is assumed that the torque of J2 is transmitted to the flange @ (1G) which is fixed to the rotating shaft of the groove 2 via the ball 04 etc. which is the torque transmission means.

上記内歯性および外歯付摩擦板f2+、 (41間のト
ルクの伝達は従来例の場合と同様(C皿ばね(5)のば
ね圧がスペーサαDを介して上記摩擦板(2)、(4)
間を押圧し、その摩擦力により達成され、上記摩擦板C
2)。
Torque transmission between the internally toothed and externally toothed friction plates f2+, (41) is the same as in the conventional example (the spring pressure of the disc spring (5) is transmitted via the spacer αD to the friction plates (2), (41). 4)
This is achieved by the frictional force of the friction plate C.
2).

(4)間の伝達可能トルクの上限値は上記摩擦力((応
じて定まる。又、上記内歯スプライン軸(9)の軸端面
(9a)  )1フランジ軸α1のフランジ面(10a
)間のトルクの伝達は下記に示すごと<、<ぼみ部(9
c)(10c) Kl?ls人されたボールIを介して
達成される。
(4) The upper limit of the torque that can be transmitted between
) The torque transmission between < and < recessed portions (9
c) (10c) Kl? This is accomplished through the ball I's played.

vJ2図は上記(ぼみ部(9c) 、 (10c)に挿
入された上記ボール0着の作用の説明図であり、上記軸
端面(9a)  &フランジ面(10a)間は伝達トル
クに基づくねじり剪断力が作用して滑ろうとするが、上
記ボールα4が存在し、このボール+14が変形を無視
できる程の剛性を有し、その直径りが変化しないものと
仮定するとNX2図aVc示す状態から第2図すに示す
ように上記内歯スプライン軸(9)の軸端面(9a)と
フランジ軸CIのフランジ面(10a)間の間隙Aが増
大しようとする。
Figure vJ2 is an explanatory diagram of the action of the ball 0 inserted into the recesses (9c) and (10c), and there is torsion between the shaft end surface (9a) & flange surface (10a) based on the transmitted torque. The shearing force acts and the ball tends to slide, but assuming that the ball α4 exists, that this ball +14 has enough rigidity to ignore deformation, and that its diameter does not change, the situation changes from the state shown in Figure NX2 aVc. As shown in Figure 2, the gap A between the shaft end surface (9a) of the internal spline shaft (9) and the flange surface (10a) of the flange shaft CI tends to increase.

上記内歯スプライン軸(9)は上記スペーサQ0を介し
て皿ばね151により上記フランジ軸α1のフランジ。
The internal spline shaft (9) is attached to the flange of the flange axis α1 by a disc spring 151 via the spacer Q0.

而(10a)側に押圧されているので、上記フランジ面
を基準にした場合、第2図8に示す間隙人が増大するに
は上記内歯スプライン軸(9)を上記器ばね(5)の押
圧に抗してこの皿ばね(5)側へ移動させる推力を必要
とするが、上記(ぼみ部(9c)、 (10c)の円錐
角を直角に形成しているので、上記ボールIに加れる伝
達トルクに略正比例した上記推力が得られる。すなわち
、第2図a、bに示す間隙人は上記ボールt14を介し
て伝達されるトルクの増減に応じて増減するつこのボー
ルα4を介して伝達するトルクの増加により間隙人が増
加すれば、上記内歯スプライン@(9)を介して上記ス
ペーサ(II]が上記器ばね(5)のばね圧に抗する軸
方向へflu、上記内歯付摩擦板(2)と外歯付摩擦板
(4)間の接触圧が減じてその間の摩擦力を減少し、摩
擦機構(4a)の伝達可能トルクの上限値が減少する。
Therefore, when the flange surface is used as a reference, in order to increase the gap shown in FIG. A thrust force is required to move the disc spring (5) toward the disc spring (5) against the pressure, but since the conical angles of the recesses (9c) and (10c) are formed at right angles, the ball I The above-mentioned thrust force is obtained which is approximately directly proportional to the transmitted torque applied.In other words, the gapper shown in FIGS. If the number of gaps increases due to an increase in the torque transmitted by The contact pressure between the toothed friction plate (2) and the externally toothed friction plate (4) is reduced to reduce the frictional force therebetween, and the upper limit of the transmittable torque of the friction mechanism (4a) is reduced.

逆に上記ボールtI4を介して伝達するトルクが減少す
れば、上記とは逆の作用により上記摩擦機構(4a)の
伝達可能トルクの上限値が減少する。すなわち、上記ポ
ールα心を介して伝達トルクの増減に応じて上記摩擦機
構(4a)の伝達可能トルクの上限(直を減。
Conversely, if the torque transmitted via the ball tI4 decreases, the upper limit of the transmittable torque of the friction mechanism (4a) decreases due to the opposite effect to the above. That is, the upper limit (direction) of the transmittable torque of the friction mechanism (4a) is decreased according to the increase or decrease of the torque transmitted via the pole α center.

増させる負帰環作用をなす9この結果上記摩擦機構(4
a)が伝達するトルクは略定値洗、すなわち上記制限値
に保持される。
9 As a result, the above-mentioned friction mechanism (4
The torque transmitted by a) is maintained at approximately a fixed value, that is, at the above-mentioned limit value.

上記は説明の便宜上トルクが外歯スプライン軸(8)か
らフランジ軸口〔へ伝達される場合について説明し念が
、逆にフランジ軸(IIから外歯スプライン軸(8)へ
伝達される場合も同様に動作する。
For convenience of explanation, the above description is based on the case where the torque is transmitted from the external spline shaft (8) to the flange shaft opening. works similarly.

なお、上記実施例では弾性体として皿ばね(5)を用い
念が、上記弾性体は皿ばねに限定されるものではな(、
コイル状ばねを用いても同様な効果が得られる。
Note that in the above embodiment, a disc spring (5) is used as the elastic body, but the elastic body is not limited to a disc spring.
A similar effect can be obtained by using a coiled spring.

また、上記実施例では第2のトルク伝達手段として複数
個のボールα4を用い九が、このボールIの代りに、相
対向する第1のトルク伝達手段としての内歯スプライン
軸(9)の一方の端面と第2の回転軸としてのフランジ
軸01のフランジ面(10a)に形成したくぼみ部(9
0) 、 (toe)のいずれか一方の代りに球面を有
する半球状の突起部を、この突起部が他方のくぼみ部に
挿入されるように形成しても同様な効果が得られる。
Further, in the above embodiment, a plurality of balls α4 are used as the second torque transmitting means, and instead of this ball I, one of the internal spline shafts (9) serving as the opposing first torque transmitting means is used. A recess (9) formed in the end face of the
A similar effect can be obtained by forming a hemispherical protrusion having a spherical surface in place of either one of (0) and (toe) so that this protrusion is inserted into the other recess.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によれば第1のトルク伝達手段
と第2の回転軸間に配された第2のトルク伝達手段から
の伝達するトルクの増加に応じて第1の回転軸と上記第
1のトルク伝達手段間に係合された摩擦機構が伝達する
トルクの上限値を減少させるように構成したので制限眞
を超えた禍大トルクが作用しても伝達するトルクを制限
値以内の略一定値に保持する。ことができるものが得ら
れる効果がある。
As described above, according to the present invention, in response to an increase in torque transmitted from the second torque transmitting means disposed between the first torque transmitting means and the second rotating shaft, the first torque transmitting means and the second rotating shaft are Since the friction mechanism engaged between the first torque transmission means is configured to reduce the upper limit of the torque to be transmitted, even if a catastrophic torque exceeding the limit is applied, the torque to be transmitted is reduced to within the limit value. Maintain at approximately constant value. What you can do is what you get.

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

第1図はこの発明の一実施例によるトルク伝達制限装置
を示す断面図、第2図a、  bは第1図に示したトル
ク伝達制限製電の第2の回転軸としての7ランジ軸およ
び第1のトルク伝達手段としての内歯スプライン軸の当
凄面に形成したくぼみ部に挿入した第2のトルク伝達手
段としてのボールの作用説明図、第3図は従来のトルク
伝達制限装置を示す断面図である。 図において、(2)は内歯付摩擦板、(4)は外歯付摩
擦板、  (4a)は摩擦機構、(5)は弾性体として
の皿ばね、(8)は第1の回転軸としての外歯スプライ
ン軸、(9)は第1のトルク伝達手段としての内歯スプ
ライン軸、  (9c)はくぼみ部、α1は第2の回転
軸としてのフランジ軸、  (10c)は(ぼみ部、a
Dはスペー’ry、 a’aハばねストッパー、αりは
スラスト軸受。 α番は第2のトルク伝達手段としてのボールを示す。 なお2図中、同一符号は同一、又は相当部分を示す。
FIG. 1 is a sectional view showing a torque transmission limiting device according to an embodiment of the present invention, and FIGS. An explanatory diagram of the action of a ball as a second torque transmission means inserted into a recess formed in the abutment surface of an internal spline shaft as a first torque transmission means. FIG. 3 shows a conventional torque transmission limiting device. FIG. In the figure, (2) is a friction plate with internal teeth, (4) is a friction plate with external teeth, (4a) is a friction mechanism, (5) is a disc spring as an elastic body, and (8) is a first rotating shaft. (9) is the internal spline shaft as the first torque transmission means, (9c) is the recess, α1 is the flange shaft as the second rotating shaft, (10c) is the (recess) Part, a
D is the spacer, a'a is the spring stopper, and α is the thrust bearing. Number α indicates a ball as the second torque transmission means. Note that in the two figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

【特許請求の範囲】[Claims] 第1および第2の回転軸、弾性体が及ぼす押圧力による
摩擦力に応じて伝達するトルクの上限値が変化する摩擦
機構、この摩擦機構を介して上記第1の回転軸側と連結
され、一端が上記第2の回転軸と対向すると共に他端が
上記弾性体と係合する第1のトルク伝達手段、この第1
のトルク伝達手段と上記第2の回転軸間に配され、この
間でトルクを伝達すると共にこのトルクの増加に応じて
上記摩擦機構に及ぼす押圧力を減少させ、この摩擦機構
が伝達するトルクの上限値を減少させるように上記第1
のトルク伝達手段を移動させる第2のトルク伝達手段を
備えたトルク伝達制限装置。
a first and second rotating shaft, a friction mechanism in which the upper limit value of the torque to be transmitted changes according to the frictional force due to the pressing force exerted by the elastic body; connected to the first rotating shaft side via the friction mechanism; a first torque transmitting means having one end facing the second rotating shaft and the other end engaging the elastic body;
is arranged between the torque transmitting means and the second rotating shaft, transmits torque therebetween, reduces the pressing force exerted on the friction mechanism in accordance with an increase in this torque, and sets an upper limit of the torque transmitted by the friction mechanism. 1st above to decrease the value
A torque transmission limiting device comprising a second torque transmission means for moving the torque transmission means.
JP14938188A 1988-06-17 1988-06-17 Device for limiting transmission of torque Pending JPH01316558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14938188A JPH01316558A (en) 1988-06-17 1988-06-17 Device for limiting transmission of torque

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14938188A JPH01316558A (en) 1988-06-17 1988-06-17 Device for limiting transmission of torque

Publications (1)

Publication Number Publication Date
JPH01316558A true JPH01316558A (en) 1989-12-21

Family

ID=15473887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14938188A Pending JPH01316558A (en) 1988-06-17 1988-06-17 Device for limiting transmission of torque

Country Status (1)

Country Link
JP (1) JPH01316558A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0684027U (en) * 1993-05-17 1994-12-02 伊東電機株式会社 Torque limiter
JPH0814355A (en) * 1994-06-24 1996-01-16 Shigehara Seisakusho:Kk Power transmission
EP0878635A1 (en) * 1997-04-18 1998-11-18 The Boeing Company Torque limiter with trip indicator
JP2001200906A (en) * 2000-01-20 2001-07-27 Kubota Corp Torque transmitting device
JP2008304008A (en) * 2007-06-08 2008-12-18 Aisin Seiki Co Ltd Torque fluctuation absorbing device
JP2010101260A (en) * 2008-10-24 2010-05-06 Denso Corp Starter
JP2013200027A (en) * 2012-02-22 2013-10-03 Takimoto Yoshie Torque control device
CN103982563A (en) * 2014-05-30 2014-08-13 武汉新威奇科技有限公司 Friction coupling for electric screw press
JP2015033279A (en) * 2013-08-06 2015-02-16 日本電産コパル電子株式会社 Thin gear motor
JP2015068374A (en) * 2013-09-27 2015-04-13 多摩川精機株式会社 Torque limiter
KR20150100531A (en) * 2014-02-24 2015-09-02 미키풀리주식회사 Screw fastener
CN107489381A (en) * 2017-09-28 2017-12-19 山西风雷钻具有限公司 Antioverloading helicoid hydraulic motor
IT201600089095A1 (en) * 2016-09-01 2018-03-01 Christian Murari DEVICE FOR THE DECELERATION OF A CLUTCH IN A MOTOR VEHICLE
WO2018216541A1 (en) * 2017-05-22 2018-11-29 ミネベアミツミ株式会社 Torque limiter and drive device

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0684027U (en) * 1993-05-17 1994-12-02 伊東電機株式会社 Torque limiter
JPH0814355A (en) * 1994-06-24 1996-01-16 Shigehara Seisakusho:Kk Power transmission
EP0878635A1 (en) * 1997-04-18 1998-11-18 The Boeing Company Torque limiter with trip indicator
JP2001200906A (en) * 2000-01-20 2001-07-27 Kubota Corp Torque transmitting device
JP2008304008A (en) * 2007-06-08 2008-12-18 Aisin Seiki Co Ltd Torque fluctuation absorbing device
JP2010101260A (en) * 2008-10-24 2010-05-06 Denso Corp Starter
US8567364B2 (en) 2008-10-24 2013-10-29 Denso Corporation Starter equipped with planetary speed reducer and shock absorber
JP2013200027A (en) * 2012-02-22 2013-10-03 Takimoto Yoshie Torque control device
JP2015033279A (en) * 2013-08-06 2015-02-16 日本電産コパル電子株式会社 Thin gear motor
JP2015068374A (en) * 2013-09-27 2015-04-13 多摩川精機株式会社 Torque limiter
KR20150100531A (en) * 2014-02-24 2015-09-02 미키풀리주식회사 Screw fastener
CN103982563A (en) * 2014-05-30 2014-08-13 武汉新威奇科技有限公司 Friction coupling for electric screw press
IT201600089095A1 (en) * 2016-09-01 2018-03-01 Christian Murari DEVICE FOR THE DECELERATION OF A CLUTCH IN A MOTOR VEHICLE
WO2018216541A1 (en) * 2017-05-22 2018-11-29 ミネベアミツミ株式会社 Torque limiter and drive device
JP2018194157A (en) * 2017-05-22 2018-12-06 ミネベアミツミ株式会社 Torque limiter and drive device
US11719315B2 (en) 2017-05-22 2023-08-08 Minebea Mitsumi Inc. Torque limiter and drive device
CN107489381A (en) * 2017-09-28 2017-12-19 山西风雷钻具有限公司 Antioverloading helicoid hydraulic motor
CN107489381B (en) * 2017-09-28 2023-06-06 山西风雷钻具有限公司 Overload-proof screw drilling tool

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