JPH0217220A - Preload setting mechanism - Google Patents

Preload setting mechanism

Info

Publication number
JPH0217220A
JPH0217220A JP63164356A JP16435688A JPH0217220A JP H0217220 A JPH0217220 A JP H0217220A JP 63164356 A JP63164356 A JP 63164356A JP 16435688 A JP16435688 A JP 16435688A JP H0217220 A JPH0217220 A JP H0217220A
Authority
JP
Japan
Prior art keywords
lock plate
engagement
angle
engaging
section
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
JP63164356A
Other languages
Japanese (ja)
Other versions
JP2638944B2 (en
Inventor
Yoichi Inoue
洋一 井上
Yasuo Hojo
康夫 北條
Shinya Nakamura
信也 中村
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor 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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP16435688A priority Critical patent/JP2638944B2/en
Publication of JPH0217220A publication Critical patent/JPH0217220A/en
Application granted granted Critical
Publication of JP2638944B2 publication Critical patent/JP2638944B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06Ball or roller bearings
    • 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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54Systems consisting of a plurality of bearings with rolling friction
    • F16C19/546Systems with spaced apart rolling bearings including at least one angular contact bearing
    • F16C19/547Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling bearings
    • 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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2229/00Setting preload
    • 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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00Apparatus or articles in engineering in general
    • F16C2361/61Toothed gear systems, e.g. support of pinion shafts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

PURPOSE:To eliminate the retightening of an adjusting nut by constituting a titled mechanism in such a way that pitch enabling to index the lock groove of a lock plate thereat are to be equal or less than the engage space angles existing between actual parts. CONSTITUTION:Preload is given by axially pressing a bearing 4 with an adjusting nut 10 tightened. A lock plate 30 is fitted to the adjusting nut 10 so as not to be relatively rotated by an engaging section. In addition, the third engage section 32 of the lock plate 30 is engaged with the lock section provided to a fixing section to secure the stop of rotation. The indexing pitch determined due to the mechanism of the third engaging section 32 is to be equal or less than the angle resulting from adding the engage space angle of the engaging section of the adjusting nut 10 in relation to the engaging section 31 of the lock plate 30 to the engage angle of the third engage section 32 of the lock plate 30 in relation to the lock section 14 of a specified fixing section.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、テーパートローラベアリングなどのラジア
ル方向のみならずスラスト方向にも荷重を受ける軸受に
対してプレロードを設定するための機構に関し、特にそ
のアジャストナツトの回転を阻止するための構成に関す
るものである。
[Detailed Description of the Invention] Industrial Application Field The present invention relates to a mechanism for setting a preload on a bearing such as a tapered roller bearing that receives loads not only in the radial direction but also in the thrust direction, and particularly relates to a mechanism for setting a preload on a bearing such as a tapered roller bearing, which is loaded not only in the radial direction but also in the thrust direction. The present invention relates to a structure for preventing rotation of.

従来の技術 この種の機構が例えば特願昭62−245317号に記
載されて8す、これを簡単に説明すれば以下のとうりで
ある。すなわち第3図は四輪駆動トランスファの部分断
面図であって、特に、センタディファレンシャル1によ
って分配された動力を後輪側に伝達するリングギヤマウ
ントケース2の支持部分を示しており、リングギヤマウ
ントケース2はトランスファケース3の内周に嵌合させ
たテーパートローラベアリング4によって回転自在に支
持されるとともに、このリングギャマウントケース2に
は、その内周側に配置したセンタディファレンシャル1
の一方のサイドギヤ5がスブンイン嵌合しており、デフ
ブース6の回転に伴ってピニオンギヤ7が公転すること
により、左右のりイドギヤ5,8にトルクが分配され、
一方のサイドギヤ5と共にリングギヤマウントケース2
が回転するようになっている。リングギヤマウントケー
ス2が回転することに伴ってこれを支持しているベアリ
ング4には軸線方向(スラスト方向)の荷重が作用する
ので、その荷重を支えるようにプレロードが負荷されて
いる。すなわち前記ベアリン・グ4のうちリングギヤマ
ウントケース2とは反対側にシム9を挟んでアジャスト
ナツト10が配置されており、口のアジセス]・ナツト
10はトランスファケース3の内周面に形成したねじ部
12に螺合し、ここにねじ込むことによりベアリング4
をスラスト方向に押圧し、所定のプレロードを与えてい
る。またこのアジャストナツト10にはその回転を阻止
するロックプレート13が嵌込まれており、さらに口の
ロックプレート13はトランスファケース3の上面側か
ら挿入したロックボルト14に係合し、その回転が阻止
されている。
BACKGROUND OF THE INVENTION This type of mechanism is described in, for example, Japanese Patent Application No. 62-245317, and is briefly explained below. That is, FIG. 3 is a partial sectional view of the four-wheel drive transfer, and particularly shows the supporting portion of the ring gear mount case 2 that transmits the power distributed by the center differential 1 to the rear wheels. is rotatably supported by a tapered roller bearing 4 fitted on the inner periphery of the transfer case 3, and a center differential 1 disposed on the inner periphery of the ring gear mount case 2.
One of the side gears 5 is fitted in a slip-in manner, and as the pinion gear 7 revolves as the differential booth 6 rotates, torque is distributed between the left and right side gears 5 and 8.
Ring gear mount case 2 along with one side gear 5
is set to rotate. As the ring gear mount case 2 rotates, a load in the axial direction (thrust direction) is applied to the bearing 4 supporting the ring gear mount case 2, so a preload is applied to support the load. That is, an adjustment nut 10 is arranged on the opposite side of the bearing ring 4 from the ring gear mount case 2 with a shim 9 in between. By screwing the bearing 4 into the portion 12 and screwing it into the bearing 4
is pressed in the thrust direction to give a predetermined preload. A lock plate 13 is fitted into the adjustment nut 10 to prevent its rotation, and the lock plate 13 at the mouth engages with a lock bolt 14 inserted from the top side of the transfer case 3 to prevent its rotation. has been done.

従来使用されているアジャストナツト10およびロック
プレート13を示せば第4図および第5図のどうりであ
る。すなわちアジャストナツト10は第4図に示すよう
に、はぼ馬円筒状もしくはリング状をなす部材であって
、その外周面には前記ねじ部12に螺合する雄ねじ部1
5が形成され、また前記シム9に当接させる先端部に対
して反対側の後端側には肩部が形成され、その肩部の外
周にわずかなリング状の突条16が形成され、かつ肩部
の内周側には複数(具体的には16個)の係合溝17が
一定ピッチで等間隔に形成されている。
A conventionally used adjustment nut 10 and lock plate 13 are shown in FIGS. 4 and 5. That is, the adjustment nut 10 is a cylindrical or ring-shaped member, as shown in FIG.
5 is formed, and a shoulder is formed on the rear end side opposite to the tip which is brought into contact with the shim 9, and a slight ring-shaped protrusion 16 is formed on the outer periphery of the shoulder. Moreover, a plurality (specifically, 16) of engagement grooves 17 are formed at regular intervals on the inner peripheral side of the shoulder portion.

これに対してロックプレー+−13は第5図に示すによ
う、リング状の基板部18から軸線方向に向けて複数の
突片を突出させた形状であり、具体的には、基板部18
の内周縁には、前記係合溝17に所定の係合間隙角度(
すなわち円周方向でのガタ)をもって係合する四つの係
合爪19が等間隔に形成されており、また基板部18の
外周縁の等間隔の三箇所には前記突条16に外周側から
係合してロックプレート13をアジャストナツト10に
取付ける微小爪20が設けられ、さらに外周の等間隔の
三箇所には、前記ロックボルト14の先端部を係合させ
るために、その一つの位相が前記係合爪19と一致した
状態で三つの係止溝21が形成されている。
On the other hand, the lock play +-13, as shown in FIG.
A predetermined engagement gap angle (
In other words, four engaging claws 19 that engage with each other with play in the circumferential direction are formed at equal intervals, and at three equally spaced locations on the outer periphery of the base plate portion 18, the protrusions 16 are formed from the outer periphery side. There are minute claws 20 that engage to attach the lock plate 13 to the adjustment nut 10, and furthermore, one phase is provided at three equally spaced locations on the outer periphery in order to engage the tip of the lock bolt 14. Three locking grooves 21 are formed in alignment with the engaging claws 19.

上記のブレロード設定機構では、まずアジャストナツト
10をトランスファケース3のねじ部12にねじ込むこ
とにより、リングギヤマウントケース2の起動トルクが
予め定めた所定の値になるまでベアリング4をスラスト
方向に押圧し、しかる後にロックプレート13をアジャ
ストナツト10の後端部に嵌込む。その場合、ロックプ
レート13の外周に形成したいずれかの係止溝21が真
上すなわちロックボルト14に一致する位置に来るよう
円周方向での向きを調整し、その状態で係合爪19をア
ジャストナツト10の係合溝17に嵌込むとともに、前
記微小爪20を突条16に係合させる。したがってロッ
クプレート13が回転方向においてアジャストナツト1
0と一体化し、そのロックプレート13の回転がロック
ボルト14によって阻止されるから、結局、アジャスト
ナツト10の緩み止めが図られる。
In the above brake load setting mechanism, first, by screwing the adjustment nut 10 into the threaded portion 12 of the transfer case 3, the bearing 4 is pressed in the thrust direction until the starting torque of the ring gear mount case 2 reaches a predetermined value. After that, the lock plate 13 is fitted into the rear end of the adjustment nut 10. In that case, adjust the direction in the circumferential direction so that one of the locking grooves 21 formed on the outer periphery of the lock plate 13 is directly above the lock bolt 14, and in this state, the lock plate 13 is rotated. While fitting into the engagement groove 17 of the adjustment nut 10, the minute pawl 20 is engaged with the protrusion 16. Therefore, the lock plate 13 is rotated by the adjustment nut 1 in the direction of rotation.
Since the rotation of the lock plate 13 is prevented by the lock bolt 14, the adjustment nut 10 is prevented from loosening.

発明が解決しようとする課題 前記ロックボルト14はロックプレート13の回転止め
だけの機能を果すものであって通常は1本のみをトラン
スファケース3の上面部に設けており、したがってロッ
クプレート13をアジャストナツト10に取付ける場合
にその係止W421のいずれかが上側に来るようにアジ
ャストナツト10に対する取付は姿勢を選択する必要が
ある。しかるに上記の従来のR@では、ロックプレート
13において係止爪19が等間隔に四つ設けられかつ係
止溝21が等間隔に三つ設けられていて、両者の回転方
向での相対位置関係が三種類であり、またアジャストナ
ツト10に形成した係合溝17が16個であるから、ロ
ックプレート13の係止溝21は、  360度、/(
16X3)=7.5度 で求められるように、7.5度のピッチで割出されるこ
とになる。他方、アジャストナツト10およびロックプ
レート13ならびにロックボルト14との各部品間には
約5度の係合隙間が存在する。
Problems to be Solved by the Invention The lock bolt 14 functions only to stop the lock plate 13 from rotating, and normally only one is provided on the upper surface of the transfer case 3. Therefore, it is difficult to adjust the lock plate 13. When attaching to the adjustment nut 10, it is necessary to select a posture for attaching to the adjustment nut 10 so that one of the locking W421 is on the upper side. However, in the conventional R@ described above, the lock plate 13 is provided with four locking pawls 19 at equal intervals and three locking grooves 21 at equal intervals, and the relative positional relationship between the two in the rotational direction is Since there are three types of engagement grooves 17 formed in the adjustment nut 10 and 16 engagement grooves 17 formed in the adjustment nut 10, the engagement groove 21 of the lock plate 13 has an angle of 360 degrees, /(
16X3)=7.5 degrees, it will be indexed with a pitch of 7.5 degrees. On the other hand, there is an engagement gap of approximately 5 degrees between the adjustment nut 10, lock plate 13, and lock bolt 14.

したがってこの係合隙間を考慮すると、ロックプレート
13は、 7.5度−5度=2.5度 のピッチで割出すことが可能である。このことは、反対
に、ロックプレート13における外周の係止溝21をロ
ックボルト14に一致させるにあたって、2.5度以下
の回転が必要であるようにアジャストナツト10がねじ
込まれていれば、アジャストナツト10に対してロック
プレート13をどのような位相に設定して嵌込んでも係
止溝21がロックボルト14に一致しないことを意味し
、したがって従来では、このような場合、アジャストナ
ツト70を更に諦め込んで保合溝19の位相をずらし、
その状態でロックプレート13をアジャストナツト10
に取付けてロックボルト14を係止溝21に係合させざ
るを得ない。その結果、従来では、プレロードが予め決
めた値以上になる不都合があった。
Therefore, considering this engagement gap, the lock plate 13 can be indexed at a pitch of 7.5 degrees - 5 degrees = 2.5 degrees. Conversely, if the adjustment nut 10 is screwed in such a way that a rotation of 2.5 degrees or less is required to align the locking groove 21 on the outer periphery of the lock plate 13 with the lock bolt 14, the adjustment This means that no matter what phase the lock plate 13 is set to and fitted into the nut 10, the locking groove 21 will not match the lock bolt 14. Therefore, conventionally, in such a case, the adjustment nut 70 is further removed. I gave up and shifted the phase of the locking groove 19,
In this state, tighten the lock plate 13 with the adjustment nut 10.
There is no choice but to attach the lock bolt 14 to the locking groove 21. As a result, conventionally there has been a problem in that the preload exceeds a predetermined value.

この発明は上記の事情を背景としてなされたもので、ロ
ックプレートを取付けるにあたってアジャストナツトを
増し締めする必要の生じないプレロード設定1lII4
を提供することを目的とするものである。
This invention was made against the background of the above-mentioned circumstances, and the preload setting 1lII4 eliminates the need to retighten the adjustment nut when installing the lock plate.
The purpose is to provide the following.

課題を解決するための手段 この発明は、上記の目的を達成するために、纏橋上定ま
るロックプレートの係止溝を割出すことのできるピッチ
を、実際の部品に存在する部品間の係合隙間角度以下゛
となるよう構成したことを特徴とするものである。より
具体的には、この発明は、軸受をその軸線方向に押圧す
るアジャストナンドに、複数のm個の第1係合部が所定
半径の円周上に一定ピンチpで等間隔に設けられ、アジ
ャストナツトの回転を阻止するだめのロックプレートに
、前記第1係合部とわずかな係合間隙角度をもって係合
してアジャストナツトとの相対回転を阻止する第2係合
部と、所定の固定部分に設けた係止部にわずかな係合間
隙角度をもって係合するよう円周上に配置した第3係合
部とが設けられたプレロード設定別項において、0口の
前記第3係合部が、いずれかの第2係合部を基準とした
円周方向での位置が前記ピッチpの整数倍に対して零を
含むそれぞれ異なるズレをもって設けられ、かつ360
度/(m×n)の値が、第1係合部と第2係合部との係
合間隙角度と係止部と第3係合部との係合間隙角度とを
加えた角度以下に設定されていることを特徴とするもの
である。
Means for Solving the Problems In order to achieve the above-mentioned object, the present invention calculates the pitch at which the locking groove of the lock plate determined on the bridge can be determined by adjusting the engagement gap between the parts existing in the actual parts. It is characterized by being configured so that the angle is less than or equal to the angle. More specifically, in the present invention, a plurality of m first engaging portions are provided at equal intervals with a constant pinch p on a circumference of a predetermined radius on an adjusting nand that presses a bearing in its axial direction, A second engaging portion that engages with the first engaging portion at a slight engagement gap angle to prevent relative rotation with the adjusting nut, and a predetermined fixing portion that engages with the lock plate that prevents rotation of the adjusting nut. A preload setting in which a third engaging portion arranged on the circumference is provided so as to engage with a locking portion provided on a portion with a slight engagement gap angle, wherein the third engaging portion having 0 openings is provided. , positions in the circumferential direction with respect to any of the second engaging portions are provided with different deviations including zero with respect to an integral multiple of the pitch p, and 360
The value of degree/(m×n) is less than or equal to the sum of the engagement gap angle between the first engagement part and the second engagement part and the engagement gap angle between the locking part and the third engagement part It is characterized by being set to .

作    用 この発明のプレロード機構においても、アジャストナツ
トを締め込んで軸受を軸線方向に押圧することによりプ
レロードを付与し、またそのアジャストナツトにロック
プレートを第1係合部および第2係合部によって相対回
転不能に取付け、かつそのロックプレートの第3係合部
を固定部に設けた係止部に係合させることにより回転止
めを行なう。そのロックプレートにおけるいずれかの第
3係合部を係止部に一致させる場合、この発明において
は、第3係合部の群構上定まる割出しピッチすなわち 360度/(m×n> の角度が、アジャストナツトの第1係台部とロックプレ
ートの第2係合部との間の係合間隙角度とロックプレー
トの第3係合部と所定の固定部の係止部との間の係合係
合角度とを加えた角度すなわちガタ分の角度以下である
ために、アジャストナツトの締め付は完了時の位相がど
のような位相であっても、これに取付けたロックプレー
トのいずれかの第3係合部が必ず係止部に一致する。し
たがってこの発明では−、ロックプレートを取付けるに
あたってアジャストナツトを増し締めする必要が生じな
い。
In the preload mechanism of the present invention, a preload is applied by tightening the adjustment nut and pressing the bearing in the axial direction, and a lock plate is attached to the adjustment nut by the first engagement portion and the second engagement portion. The rotation is stopped by attaching the lock plate so as not to rotate relative to each other and engaging the third engaging portion of the lock plate with a locking portion provided on the fixed portion. When any of the third engaging parts of the lock plate is made to coincide with the locking part, in this invention, the indexing pitch determined by the group structure of the third engaging parts, that is, the angle of 360 degrees/(m×n> However, the engagement gap angle between the first engagement part of the adjustment nut and the second engagement part of the lock plate and the engagement between the third engagement part of the lock plate and the engagement part of the predetermined fixing part are Since the angle is less than the sum of the engagement angle, that is, the angle of play, no matter what phase the adjustment nut is in when it is tightened, it will not be possible to tighten any of the lock plates attached to it. The third engaging portion always coincides with the locking portion.Therefore, in the present invention, there is no need to further tighten the adjustment nut when installing the lock plate.

実施例 つぎにこの発明の実施例を図面を参照して説明する。な
お、以下に述べる実施例は前述したリングギヤマウント
ケース2を支持するテーパートローラベアリング4に対
してプレロードを付与する□構にこの発明を適用したも
のであり、したがりて以下の説明では上述した構成と異
なる部分についてのみ述べ、同一の箇所については図に
上記の符号と同一の符号を付してその説明を省略する。
Embodiments Next, embodiments of the present invention will be described with reference to the drawings. The embodiment described below is an application of the present invention to a structure in which a preload is applied to the tapered roller bearing 4 that supports the ring gear mount case 2, and therefore the following explanation will be based on the structure described above. Only the different parts will be described, and the same parts will be denoted by the same reference numerals as those mentioned above in the figures, and the explanation thereof will be omitted.

第1図<A><8>はこの発明の一実施例のプレロード
設定1情で使用するロックプレート30を示すもので、
ここに示すロックプレート30には、四つの係合爪31
と五つの係止21!32とが形成されている。すなわち
リング状をなす基板部33の内周縁の四箇所に、アジャ
ストナツト10の係合溝17に所定の係合間隙角度(す
なわちガタ)αをもって嵌り込む係合爪31が軸線方向
に突出して一体に形成されており、また外周縁には中央
部に切込みを入れた五対の舌片部を係合爪31と同方向
に突出させることにより、五つの係止溝32が等間隔に
形成されている。この係止溝32は、ロックボルト14
の先端部を挿入してロックプレート30の回転を阻止す
るためのものであって、第2図に拡大して示すにように
、その円周方向での幅はロックボルト14の先端部の直
径より大きく、その寸法差に対応した角度βが係合間隙
角度となっている。また係止溝32は円周上に等間隔に
設けられているから、それぞれの間隔(ピッチ角度)は
72度の角度である。またそのうちの一つは第1図<A
>に示すように前記係合爪31の一つと位相が一致して
いる。したがってこの係合爪31と位相が一致している
係止溝32は、ロックプレート30をアジャストナツト
10に取付ける場合、アジャストナツト10の係合溝1
7と位相が一致することになるが、この係止溝32を基
準とした他の係止溝32の円周方向での位置、すなわち
いずれかの係合溝17を基準としだ係止溝32の円周方
向での位置は、係合W417のピッチ(360度÷16
−22.5度)を五等分した角度を、係合溝17のピッ
チ角度の整数倍の角度にズレとして順次累積して付加し
た角度位置となっている。すなわち第1図(A)の最上
部の係止溝32に対して反時計方向に第2、第3・・・
の係止溝とすると、第2の係止溝は最上部の係止溝から
72度の位置であってこれは、(22゜5度x3+22
.5度x 115 )であり、また第3の係止溝は同様
に144度の位置であってこれは、(22,5度×6+
22.5度X 2//S )であり、さらに第4の係止
溝は216度の位置であってこれは、(22,5度×9
+22.5度x 315 )であり、そして第5の係止
溝は288度の位置であって、(22,5度x 10+
 22.5度X 415 )である。このように8f%
止溝32の円周方向の位置は、係合溝17のピッチの整
数倍に対して異なるズレ、より正確にはピッチの115
を順次累積したズレをもった位置となっている。
FIG. 1 <A><8> shows a lock plate 30 used in the preload setting 1 according to an embodiment of the present invention.
The lock plate 30 shown here has four engaging claws 31.
and five locks 21!32 are formed. That is, engagement claws 31 that fit into the engagement groove 17 of the adjustment nut 10 with a predetermined engagement gap angle (i.e. play) α protrude in the axial direction and are integrally formed at four locations on the inner peripheral edge of the ring-shaped base plate portion 33. In addition, five pairs of tongue pieces with notches in the center of the outer peripheral edge protrude in the same direction as the engaging claws 31, so that five locking grooves 32 are formed at equal intervals. ing. This locking groove 32 is connected to the lock bolt 14.
The width in the circumferential direction is the diameter of the tip of the lock bolt 14, as shown in an enlarged view in FIG. The angle β that is larger and corresponds to the dimensional difference is the engagement gap angle. Further, since the locking grooves 32 are provided at equal intervals on the circumference, each interval (pitch angle) is an angle of 72 degrees. Also, one of them is shown in Figure 1 <A
As shown in >, the phase matches that of one of the engaging claws 31. Therefore, when the lock plate 30 is attached to the adjustment nut 10, the locking groove 32 that is in phase with the engagement claw 31 is connected to the engagement groove 1 of the adjustment nut 10.
However, the position of the other locking grooves 32 in the circumferential direction with this locking groove 32 as a reference, that is, the position of the locking groove 32 with respect to any of the locking grooves 17 as a reference. The position in the circumferential direction is the pitch of engagement W417 (360 degrees ÷ 16
-22.5 degrees) divided into five equal parts are sequentially added as deviations to angles that are integral multiples of the pitch angle of the engagement groove 17. That is, the second, third...
If the locking groove is , the second locking groove is at a position of 72 degrees from the top locking groove, which is (22°5 degrees x 3 + 22
.. 5 degrees x 115 ), and the third locking groove is similarly at a position of 144 degrees, which is (22,5 degrees x 6 +
The fourth locking groove is at a position of 216 degrees, which is (22.5 degrees x 9
+22.5 degrees x 315 ), and the fifth locking groove is at 288 degrees, (22.5 degrees x 10+
22.5 degrees x 415 ). Like this 8f%
The position of the stop groove 32 in the circumferential direction varies depending on an integral multiple of the pitch of the engagement groove 17, more precisely, the position of the stop groove 32 is 115 times the pitch.
It is a position with a deviation that is accumulated sequentially.

また第1図に示すロックプレート30においては、アジ
ャストナツト10の外周肩部に形成1ノた突条16に引
掛る微小爪34が各係止溝32の間に設けられている。
Further, in the lock plate 30 shown in FIG. 1, a minute pawl 34 is provided between each locking groove 32 to catch on a notched protrusion 16 formed on the outer circumferential shoulder of the adjustment nut 10.

上記のロックプレート30は、従来のものと同様に、第
3図に示すようにベアリング4のプレロードが規定の値
、具体的にはリングギヤマウントケース2の起動トルク
が規定のトルクになるまで諦め込んだアジャストナツト
10に、係合爪31が係合溝17に嵌り込みかつ微小爪
34が突条16に引掛るように取付けて使用される。そ
の場合、ロックプレート30に設けた係合爪31はいず
れの係合溝17にも嵌り込むから、ロックプレート30
は係合溝17のピッチ(22,5度)に両者の係合間隙
角度αを加えた角度づつ回転させた状態で取付けること
ができる。その場合、ロックプレート30を係合溝17
の3ピッチ分(22,5度×3 =67.5度)回転さ
せる都度、係止11132の配列状態は、Oツクプレー
ト30を実際に回転させた方向とは反対の方向に115
ピッチ回転させた状態と同様になる。したがって上記の
ロックプレート30によねば、機構の上では係合溝17
のピッチpの1、−’ 5づつ係゛止溝32を円周方向
に移動させることができ、換言すれば、機構の上では、
360度÷(16X5)=4.5度 の調整角度を備えており、これが部品間の係合間隙角度
(α十B=約5度)より小さいから、いずれかの係止溝
32が必ずロックボルト14に一致し、両者を係合させ
ることができることになる。
As with the conventional lock plate 30, as shown in FIG. It is used by being attached to the adjustment nut 10 so that the engagement claw 31 fits into the engagement groove 17 and the minute claw 34 hooks on the protrusion 16. In that case, since the engaging claws 31 provided on the lock plate 30 fit into any of the engaging grooves 17, the lock plate 30
can be attached while being rotated by an angle equal to the pitch (22.5 degrees) of the engagement groove 17 plus the engagement gap angle α between the two. In that case, the lock plate 30 is
Each time the locking plate 30 is rotated by 3 pitches (22.5 degrees x 3 = 67.5 degrees), the arrangement state of the locks 11132 is 115 in the opposite direction to the direction in which the O-lock plate 30 is actually rotated.
It will be the same as when the pitch is rotated. Therefore, according to the above lock plate 30, the engagement groove 17 on the mechanism
The locking groove 32 can be moved in the circumferential direction by 1, -5 of the pitch p, in other words, on the mechanism,
It has an adjustment angle of 360 degrees ÷ (16 x 5) = 4.5 degrees, which is smaller than the engagement gap angle between parts (α + B = approximately 5 degrees), so one of the locking grooves 32 is always locked. This corresponds to the bolt 14, and the two can be engaged.

なお、上記の実施例では、等間隔の係合溝17を16個
、ロックボルト14に係合する係止溝32を等間隔に5
個それぞれ設けたuI!成について説明したが、この発
明は上記の実施例に限定されないのであって、要は、ロ
ックプレートをアジャストナツトに形成した係合溝のピ
ッチの整数倍づつ回転させるに従ってロックプレートに
形成した係止溝の配列状態が実質的に、各部品の係合間
隙角度以下の角度で変化するよう構成してあればよ(、
したがりて係合溝や係止溝の数が上記の実施例で示した
数に限定されないことは勿論、係止溝は等間隔である必
要は特にはなく、さらに係止爪も等間隔の四個である必
要はない。これを−膜化した式で示せば、係合溝の数を
m個、係合溝のピッチの整数倍にそれぞれ異なるズレを
もった係止溝の数をn個とし、さらに上記の実施例で述
べた各部品間の係合間隙角度を同條にα、βとすると、
(360度÷(rr++n))≦(α十β)となる。
In the above embodiment, 16 engaging grooves 17 are provided at equal intervals, and 5 locking grooves 32 are provided at equal intervals for engaging the lock bolt 14.
uI set up individually! However, the present invention is not limited to the above-mentioned embodiments, and the point is that the locking plate is formed on the lock plate as the lock plate is rotated by an integral multiple of the pitch of the engagement groove formed on the adjustment nut. It is only necessary that the arrangement of the grooves is configured so that the arrangement state of the grooves changes substantially at an angle equal to or less than the engagement gap angle of each part.
Therefore, it goes without saying that the number of engaging grooves and locking grooves is not limited to the number shown in the above embodiments, and the locking grooves do not need to be equally spaced, and furthermore, the locking claws may also be spaced at equal intervals. It doesn't have to be four. Expressing this in a -film form, let the number of engaging grooves be m, the number of locking grooves each having a different deviation equal to an integer multiple of the pitch of the engaging grooves be n, and furthermore, the above embodiment Let α and β be the engagement gap angles between the parts mentioned in the same article, then
(360 degrees ÷ (rr++n))≦(α+β).

また上記の実施例では、アジャストナツトに溝を形成し
、これに嵌り込む係合部としての突起をロックプレート
に形成したが、この凹凸関係はこの発明では上記の実施
例とは反対であってもよいつさらにロックプレートの回
転を止めるための係止部は、上記のロックボルトに限定
されるものではなく、これと同様な回転阻止群能があれ
ば、他の構成のものであってもよい。
Further, in the above embodiment, a groove was formed in the adjustment nut, and a protrusion was formed on the lock plate as an engaging portion to fit into the groove, but in this invention, this uneven relationship is opposite to that of the above embodiment. Furthermore, the locking part for stopping the rotation of the lock plate is not limited to the above-mentioned lock bolt, but may be of other configuration as long as it has a similar rotation prevention function. good.

発明の効果 以上の説明から明らかなようにこの発明のプレロード設
定amによれば、複数の第3係合部が実際には広い間隔
(ピッチ角度)をもって設けられていても、ロックプレ
ートをアジャストナツトに対してその係合溝のピッチの
整数倍づつ回転させれば、第3係合部の゛位置が実質的
に、アジャストナツトにおける第1係合部のピッチより
小さい角度で円周方向に移動することになり、かつその
移動角度が各部品の係合間隙角度以下であるために、第
3係合部が固定部に設けた係止部に対して必ず一致し、
その結果、この発明のR@によれば、アジャストナツト
を増し締めすることなく、ロックプレートを介して回転
止めすることができ、ひいては軸受に付与するプレロー
ドを所期通りの値とすることができる。
Effects of the Invention As is clear from the above explanation, according to the preload setting am of the present invention, even if the plurality of third engaging portions are actually provided with wide intervals (pitch angles), the lock plate cannot be adjusted by adjusting the nut. If the pitch of the engagement groove is rotated by an integral multiple of the pitch of the engagement groove, the position of the third engagement portion will substantially move in the circumferential direction at an angle smaller than the pitch of the first engagement portion of the adjustment nut. Since the movement angle is less than the engagement gap angle of each component, the third engagement part always matches the locking part provided on the fixed part,
As a result, according to R@ of the present invention, rotation can be stopped via the lock plate without retightening the adjustment nut, and the preload applied to the bearing can be set to the desired value. .

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

第1図(A>はこの発明で使用するロックプレートの正
面図、同図(B)はその縦断面図、第2図は係合間隙角
度を説明するための説明図、第3図は四輪駆動トランス
ファにおけるプレロード調整は構を示す断面図、第4図
(A>はそのアジャストナツトの断面図、同図(B)は
その正面図、第5図(A>は従来のロックプレートの正
面図、同図(8)はその縦断面図である。 2・・・リングギヤマウントケース、 3・・・トラン
ス1ケース、 4・・・テーパートローラベアリング、
10・・・アジャストナツト、 12・・・ねじ部、 
14・・・ロックボルト、  17・・・係合溝、 3
0・・・ロックプレート、 31・・・係合爪、 32
・・・係止溝、α、β・・・係合間隙角度。 出願人  トヨタ自動車株式会社 代理人  弁理士 豊 1)武久 (ほか1名) 第1図 (A) (B) 第2図 第3図 (A) 第4図 (B)
Fig. 1 (A) is a front view of the lock plate used in this invention, Fig. 2 (B) is a longitudinal sectional view thereof, Fig. 2 is an explanatory diagram for explaining the engagement gap angle, and Fig. 3 is a front view of the lock plate used in this invention. Preload adjustment in a wheel drive transfer is a cross-sectional view showing the mechanism, Figure 4 (A> is a cross-sectional view of the adjustment nut, Figure (B) is a front view thereof, and Figure 5 (A> is a front view of a conventional lock plate). The figure and the same figure (8) are longitudinal sectional views thereof. 2... Ring gear mount case, 3... Transformer 1 case, 4... Taper roller bearing,
10... Adjustment nut, 12... Threaded part,
14... Lock bolt, 17... Engagement groove, 3
0...Lock plate, 31...Engagement claw, 32
... Locking groove, α, β ... Engagement gap angle. Applicant Toyota Motor Corporation Agent Patent Attorney Yutaka 1) Takehisa (and 1 other person) Figure 1 (A) (B) Figure 2 Figure 3 (A) Figure 4 (B)

Claims (1)

【特許請求の範囲】 軸受をその軸線方向に押圧するアジャストナットに、複
数のm個の第1係合部が所定半径の円周上に一定ピッチ
pで等間隔に設けられ、アジャストナットの回転を阻止
するためのロックプレートに、前記第1係合部とわずか
な係合間隙角度をもって係合してアジャストナットとの
相対回転を阻止する第2係合部と、所定の固定部分に設
けた係止部にわずかな係合間隙角度をもって係合するよ
う円周上に配置した第3係合部とが設けられたプレロー
ド設定機構において、 n個の第3係合部が、いずれかの第2係合部を基準とし
た円周方向での位置が前記ピッチpの整数倍に対して零
を含むそれぞれ異なるズレをもつて設けられ、かつ36
0度/(m×n)の値が、第1係合部と第2係合部との
係合間隙角度と係止部と第3係合部との係合間隙角度と
を加えた角度以下に設定されていることを特徴とするプ
レロード設定機構。
[Claims] An adjustment nut that presses the bearing in its axial direction is provided with a plurality of m first engaging portions at equal intervals at a constant pitch p on a circumference of a predetermined radius, and when the adjustment nut is rotated. A second engaging portion that engages with the first engaging portion at a slight engagement gap angle to prevent relative rotation with the adjustment nut, and a second engaging portion provided on a predetermined fixed portion. In the preload setting mechanism, the n third engaging parts are provided with third engaging parts disposed on the circumference so as to engage with the locking part with a slight engagement gap angle. The positions in the circumferential direction with respect to the two engaging portions are provided with different deviations including zero with respect to an integral multiple of the pitch p, and 36
The value of 0 degrees/(m×n) is the angle that is the sum of the engagement gap angle between the first engagement part and the second engagement part and the engagement gap angle between the locking part and the third engagement part. A preload setting mechanism characterized by the following settings.
JP16435688A 1988-07-01 1988-07-01 Preload setting mechanism Expired - Fee Related JP2638944B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16435688A JP2638944B2 (en) 1988-07-01 1988-07-01 Preload setting mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16435688A JP2638944B2 (en) 1988-07-01 1988-07-01 Preload setting mechanism

Publications (2)

Publication Number Publication Date
JPH0217220A true JPH0217220A (en) 1990-01-22
JP2638944B2 JP2638944B2 (en) 1997-08-06

Family

ID=15791595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16435688A Expired - Fee Related JP2638944B2 (en) 1988-07-01 1988-07-01 Preload setting mechanism

Country Status (1)

Country Link
JP (1) JP2638944B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1650448A2 (en) * 2004-10-19 2006-04-26 American Axle & Manufacturing, Inc. Axle assembly with bearing adjustment mechanism
JP2011106639A (en) * 2009-11-20 2011-06-02 Ud Trucks Corp Pre-load adjusting mechanism of taper roller bearing
EP2677185A1 (en) * 2012-06-21 2013-12-25 ArvinMeritor Technology, LLC An axle assembly having a bearing adjuster mechanism
US10577259B2 (en) 2014-03-07 2020-03-03 Secure Natural Resources Llc Removal of arsenic from aqueous streams with cerium (IV) oxide compositions

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6487915A (en) * 1987-09-29 1989-04-03 Aisin Aw Co Preload adjusting device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6487915A (en) * 1987-09-29 1989-04-03 Aisin Aw Co Preload adjusting device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1650448A2 (en) * 2004-10-19 2006-04-26 American Axle & Manufacturing, Inc. Axle assembly with bearing adjustment mechanism
EP1650448A3 (en) * 2004-10-19 2006-06-07 American Axle & Manufacturing, Inc. Axle assembly with bearing adjustment mechanism
KR101280208B1 (en) * 2004-10-19 2013-06-28 아메리칸 액슬 앤드 매뉴팩쳐링, 인코포레이티드 Axle assembly with bearing adjustment mechanism
JP2011106639A (en) * 2009-11-20 2011-06-02 Ud Trucks Corp Pre-load adjusting mechanism of taper roller bearing
EP2677185A1 (en) * 2012-06-21 2013-12-25 ArvinMeritor Technology, LLC An axle assembly having a bearing adjuster mechanism
US8777493B2 (en) 2012-06-21 2014-07-15 Arvinmeritor Technology, Llc Axle assembly having a bearing adjuster mechanism
US10577259B2 (en) 2014-03-07 2020-03-03 Secure Natural Resources Llc Removal of arsenic from aqueous streams with cerium (IV) oxide compositions

Also Published As

Publication number Publication date
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