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JP2008142823A - Extraction jig for bearing - Google Patents

Extraction jig for bearing Download PDF

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Publication number
JP2008142823A
JP2008142823A JP2006331672A JP2006331672A JP2008142823A JP 2008142823 A JP2008142823 A JP 2008142823A JP 2006331672 A JP2006331672 A JP 2006331672A JP 2006331672 A JP2006331672 A JP 2006331672A JP 2008142823 A JP2008142823 A JP 2008142823A
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Prior art keywords
bearing
shaft
set plate
extraction
inner ring
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JP2006331672A
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JP5032834B2 (en
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Kazuyoshi Koike
一義 小池
Katsue Tanaka
勝栄 田中
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TCM Corp
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TCM Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/062—Dismounting of ball or roller bearings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an extraction jig capable of extracting a bearing without extracting the bearing together with a shaft from a housing (casing). <P>SOLUTION: This extraction jig for extracting the bearing 3 interposed between the shaft 1 and a hole part comprises: a set plate 4; an extraction bolt 7 so screwed as to be moved forward and backward from the center of the set plate 4 and having the end 6 brought into contact with the end surface 5 of the shaft 1; and a plurality of extracting rod bodies 12 each having a swelled head part 15 projecting from the outer peripheral edge of the set plate 4 and lockable with the recessed grooves 13 for rolling balls formed in the inner ring 10 and the outer ring 11 of the bearing 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、ベアリング用抜き治具に関する。   The present invention relates to a bearing extraction jig.

従来、ベアリングを取り外す方法として、プレスによる取り外し方法（当て金を固定し、シャフトをプレスすることで引き抜く）、あるいは、図15のような抜き治具を用いて引き抜く方法が知られている。また、特許文献１に記載のような類似の構造の抜き治具を用いる場合もある。   Conventionally, as a method of removing the bearing, a method of removing by a press (fixing a stopper and pulling out by pressing a shaft) or a method of pulling out using a pulling jig as shown in FIG. 15 is known. Moreover, there is a case where a punching jig having a similar structure as described in Patent Document 1 is used.

即ち、図15に示すように従来の抜き治具30は図外のハウジング（ケーシング）から、一旦、シャフト31と共にベアリング32を抜き出して、シャフト31の端面33に、セットプレート34の中央を貫通する抜きボルト35の先端を押圧しつつ、セットプレート34の外周縁から突設させた複数本の引抜杆体36及び引込み用の爪37をベアリング32の外周から抱き込み状として、引き抜く構造であった。特許文献１に記載の抜き治具も同様に、一旦、シャフトとベアリングと共にハウジング（ケーシング）から抜き出し、かつ、ベアリングを抱き込み状として、爪にて引き抜く構造であった。
特開２００５- ２７９８０９号公報 That is, as shown in FIG. 15, the conventional extraction jig 30 once extracts the bearing 32 together with the shaft 31 from the housing (casing) not shown, and penetrates the end surface 33 of the shaft 31 through the center of the set plate 34. The structure was such that a plurality of pulling rods 36 and pulling claws 37 protruding from the outer peripheral edge of the set plate 34 were pulled from the outer periphery of the bearing 32 while pressing the tip of the pulling bolt 35. Similarly, the extraction jig described in Patent Document 1 has a structure in which the shaft and the bearing are once extracted from the housing (casing), and the bearing is held in a hug shape and is extracted by a nail.
JP-A-2005-279809

解決しようとする課題は、従来のベアリング抜き治具では上述のように、ハウジング（ケーシング）からベアリング及びシャフトを一体状に取り出す作業が必要となり、手間や時間がかかる点にある。例えば、建設機械等の車両における軸受耐久試験あるいは市場稼働車の調査・点検の際に、頻繁にベアリングを取外す作業が必要であるが、ミッションケース等からシャフトと共に抜き出す手間が掛かり、非能率であった。   The problem to be solved is that, as described above, in the conventional bearing removing jig, it is necessary to take out the bearing and the shaft integrally from the housing (casing), which takes time and effort. For example, it is necessary to frequently remove the bearing during a bearing durability test in a vehicle such as a construction machine or a survey / inspection of a vehicle in operation in the market. It was.

そこで、本発明は、シャフトをハウジング（ケーシング）から取り外し作業を行わずに、容易かつ迅速にベアリングの取り外しを行うことが可能なベアリング用抜き治具の提案を目的とする。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to propose a bearing removal jig that can easily and quickly remove a bearing without removing the shaft from the housing (casing).

上記目的を達成するために、本発明に係る抜き治具は、シャフトと孔部との間に介装されたベアリングを抜く為の抜き治具であって、セットプレートと、該セットプレートの中央から螺進退自在に螺着されて上記シャフトの端面に先端が当接する抜きボルトと、上記セットプレートの外周縁から突設されて上記ベアリングの内輪・外輪のボール転動用凹溝に係止可能な膨出頭部を有する複数本の引抜杆体とを、備えたものである。   In order to achieve the above object, a punching jig according to the present invention is a punching jig for pulling out a bearing interposed between a shaft and a hole, and includes a set plate and a center of the set plate. And a bolt that is screwed so as to be able to move forward and backward and the tip of the shaft abuts against the end surface of the shaft, and protrudes from the outer peripheral edge of the set plate, and can be locked in a groove for ball rolling of the inner ring and outer ring of the bearing. A plurality of drawing rods having bulging heads are provided.

また、上記引抜杆体は少なくとも90°回転可能として、上記セットプレートの孔部に挿通され、かつ、固着具にて固定自在に取り付けられている。
また、上記膨出頭部は軸心方向から見て円形から２つの三日月部を削除して平行な２つの弦を有する長円形状であり、かつ、アゴ面部はアール凸面を有する。
また、上記膨出頭部の平行な上記弦の幅は上記ベアリングの内輪の外周面と外輪の内周面との間の間隙部の間隔寸法よりも小さく設定されており、上記膨出頭部を上記間隙部に差込可能に構成されている。
また、上記引抜杆体の基端には掴持用多角部又は作業工具用の係止溝を有する。 The pulling rod is rotatable at least 90 °, is inserted through the hole of the set plate, and is fixed by a fixing tool.
Further, the bulging head has an oval shape having two parallel chords by removing two crescent parts from a circle when viewed from the axial direction, and the jaw surface has a rounded convex surface.
In addition, the width of the parallel string of the bulging head is set to be smaller than the gap dimension of the gap between the outer peripheral surface of the inner ring of the bearing and the inner peripheral surface of the outer ring, It can be inserted into the gap.
In addition, a gripping polygonal portion or a locking groove for a work tool is provided at the base end of the drawing rod.

本発明は、次のような効果を奏する。
本発明のベアリング抜き治具によれば、ハウジング（ケーシング）から、シャフトと共にベアリングを一体状として、一旦抜き出す作業が不要となる。即ち、ハウジング（ケーシング）の外部から見て、ベアリングの片面のみが露出していれば、組立状のままでベアリングの抜取り作業を行うことができる。しかもその作業が容易かつ迅速に行えると共に、この抜き治具は小型軽量であり取り扱いも容易である。 The present invention has the following effects.
According to the bearing extraction jig of the present invention, it is not necessary to once extract the bearing together with the shaft from the housing (casing). That is, when only one side of the bearing is exposed when viewed from the outside of the housing (casing), the bearing can be removed in an assembled state. In addition, the work can be performed easily and quickly, and the removal jig is small and light and easy to handle.

以下、図示の実施の形態に基づき本発明を詳説する。
図１〜図５に於て、26は本発明に係るベアリング用抜き治具であって、図１に例示する車両のトランスミッション等のケーシング（ハウジング）40に組み込まれたベアリング３を抜き取るのに使用される。即ち、ギアーを有するシャフト１は深溝玉軸受等のベアリング３にて回転自在に枢支されており、具体的には、ケーシング（ハウジング）40の孔部２とシャフト１との間に介装された深溝玉軸受等のベアリング３を、このベアリング３の一面（外面）が露出状態下でかつシャフト１がケーシング（ハウジング）40に組み込まれたまま（取り出さないまま）の状態で、引き抜くことが可能である。 Hereinafter, the present invention will be described in detail based on the illustrated embodiment.
1 to 5, reference numeral 26 denotes a bearing extraction jig according to the present invention, which is used to extract a bearing 3 incorporated in a casing (housing) 40 of a vehicle transmission or the like illustrated in FIG. Is done. That is, the shaft 1 having a gear is pivotally supported by a bearing 3 such as a deep groove ball bearing, and is specifically interposed between the hole 2 of the casing (housing) 40 and the shaft 1. It is possible to pull out the bearing 3 such as a deep groove ball bearing with one surface (outer surface) of the bearing 3 exposed and with the shaft 1 being incorporated into the casing (housing) 40 (not taken out). It is.

このベアリング用抜き治具26は、円板型のセットプレート４を有し、円形中央部がやや肉厚として小円形に盛り上がり、その円形中央部（中央）にねじ孔８が貫通状に形成され、さらに、４個の孔部９がセットプレート４の外周縁に貫設されている。この４個の孔部９のピッチ円直径は、引き抜くべきベアリング３の内輪10と外輪11の間に転動自在に嵌着されたボールのピッチ円直径に略等しいように、設定される。なお、この外周縁に沿って配設された孔部９は、（ねじの無い）円形孔の場合を、図２と図４では、示している。また、４個の孔部９は、円周等間隔乃至それに近いのが、望ましいが、引き抜かれるベアリング３のリテーナ42の谷部43に対応するように僅かに不均等に配置する。
７は、セットプレート４の中央のねじ孔８に、螺進退自在に螺着された抜きボルトであって、この抜きボルト７は、図１と図２に示すように、ハウジング（ケーシング）40の一面（外面）に露出状のシャフト１の端面５に、その先端６が当接する。作業工具を掛ける（掴持する）ために、ボルト頭部７a を外端部に有する。 This bearing extraction jig 26 has a disk-shaped set plate 4, and a circular central portion is slightly thickened to a small circular shape, and a screw hole 8 is formed in the circular central portion (center) in a penetrating manner. Further, four hole portions 9 are provided through the outer peripheral edge of the set plate 4. The pitch circle diameters of the four holes 9 are set so as to be approximately equal to the pitch circle diameter of a ball that is rotatably fitted between the inner ring 10 and the outer ring 11 of the bearing 3 to be pulled out. 2 and 4 show a case where the hole 9 arranged along the outer peripheral edge is a circular hole (without a screw). The four holes 9 are preferably arranged at equal intervals or close to the circumference, but are slightly unevenly arranged so as to correspond to the valleys 43 of the retainer 42 of the bearing 3 to be pulled out.
Reference numeral 7 denotes a extracting bolt that is screwed into a screw hole 8 in the center of the set plate 4 so as to be able to advance and retract. The extracting bolt 7 is formed in a housing (casing) 40 as shown in FIGS. The tip 6 abuts on the end surface 5 of the exposed shaft 1 on one surface (outer surface). A bolt head 7a is provided at the outer end for hooking (gripping) the work tool.

12はセットプレート４の外周縁に形成された上記孔部９に挿通され、各２個のナット等の固着具17，18にてセットプレート４に固着され、セットプレート４の裏面28から突設された引抜杆体である。この引抜杆体12は、ベアリング３の内輪10・外輪11のボール転動用凹溝13に係止可能な膨出頭部15を先端44に有し、かつ、中間部から基端22にわたってねじ部45を有している。上記固着具17，18としてのナットが、この引抜杆体12のねじ部45に螺着され、セットプレート４の外周縁をサンドウィッチ状に挟むように、表て面27・裏面28にナットが圧着して、引抜杆体12の膨出頭部15の（裏面28からの）突出寸法を増減調整可能となっている。
ところで、引抜杆体12の膨出頭部15は軸心方向から見て、図６（ａ）に示すように、円形から２つの三日月部46，46を削除して平行な２つの弦47，47を有する長円形状とし、かつ、アゴ面部14はアール凸面16に形成している。 12 is inserted through the hole 9 formed in the outer peripheral edge of the set plate 4 and fixed to the set plate 4 by two fixing tools 17 and 18 such as two nuts, and protrudes from the back surface 28 of the set plate 4. This is a drawn rod. The pulling rod 12 has a bulging head 15 that can be locked in the ball rolling concave groove 13 of the inner ring 10 and the outer ring 11 of the bearing 3 at the distal end 44, and a threaded portion 45 extending from the intermediate portion to the proximal end 22. Have. The nuts as the fasteners 17 and 18 are screwed onto the threaded portion 45 of the pulling housing 12 and the nuts are crimped to the front surface 27 and the rear surface 28 so that the outer peripheral edge of the set plate 4 is sandwiched. Thus, the projecting dimension (from the back surface 28) of the bulging head 15 of the extraction rod 12 can be adjusted up or down.
By the way, as shown in FIG. 6 (a), the bulging head 15 of the pulling rod body 12 has two crescent portions 46, 46 removed from the circular shape, as shown in FIG. The jaw surface portion 14 is formed on the rounded convex surface 16.

そして、図６と、図９〜図14に示すように、引抜杆体12の膨出頭部15は軸心廻りに90°回転させて、内輪10の外周面19と、外輪11の内周面20との間の間隙部21への差込可能（出し入れ自由）な状態と、凹溝13に係止可能な状態に、切換えられる。従って、ねじ部45と２個のナット（固着具17，18）から成る前述の構成では、90°以上回転可能であるので、そのように差込可能状態（図９・図10・図11参照）と、係止（可能）状態（図12・図13・図14参照）とに、切換自在である。なお、図示省略するが、少なくとも90°回転可能であれば、図示のねじ部45とナット（固着具17，18）以外の構造とするも自由である。   Then, as shown in FIGS. 6 and 9 to 14, the bulging head 15 of the pulling rod 12 is rotated by 90 ° around the axial center, and the outer peripheral surface 19 of the inner ring 10 and the inner peripheral surface 20 of the outer ring 11 are rotated. The state can be switched between a state where it can be inserted into and removed from the gap portion 21 (free to put in and out) and a state where it can be locked in the concave groove 13. Therefore, in the above-described configuration comprising the screw portion 45 and the two nuts (fixing members 17 and 18), it can be rotated by 90 ° or more, so that it can be inserted in such a state (see FIGS. 9, 10, and 11). ) And a locked (possible) state (see FIGS. 12, 13, and 14). Although illustration is omitted, a structure other than the illustrated screw portion 45 and nut (fixing members 17 and 18) can be freely used as long as it can rotate at least 90 °.

さらに、詳しく説明すれば、膨出頭部15の平行な弦の幅Ｈは、ベアリング３の内輪10の外周面19と、外輪11の内周面20の間の間隙部21の間隔寸法Ｗよりも小さく設定されることで、膨出頭部15を間隙部21に差込可能に構成されている。
膨出頭部15は、そのアゴ面部14がアール凸面16であるので、図14に示す如く、凹溝13のアール面に沿って当接し、接触面圧を低くして、引き抜き時に凹溝13の内面が損傷を受けない。さらに、膨出頭部15の頭面（先端面）は、アール凸面39として、間隙部21に挿入し易く、リテーナ42との干渉を避けている。また、中心に小凹窪部48を設けて、図10・図11及び図13・図14に示すように、リテーナ42のリベット等の小突出子49との干渉を避けている。 More specifically, the width H of the parallel chord of the bulging head 15 is larger than the distance W between the outer peripheral surface 19 of the inner ring 10 of the bearing 3 and the inner peripheral surface 20 of the outer ring 11. By being set small, the bulging head 15 can be inserted into the gap 21.
Since the jaw surface portion 14 of the bulging head 15 is a rounded convex surface 16, as shown in FIG. 14, it abuts along the rounded surface of the concave groove 13, lowers the contact surface pressure, and the concave groove 13 The inner surface is not damaged. Further, the head surface (tip surface) of the bulging head 15 is easy to insert into the gap portion 21 as a rounded convex surface 39 and avoids interference with the retainer 42. Further, a small concave recess 48 is provided in the center to avoid interference with the small protrusion 49 such as a rivet of the retainer 42 as shown in FIGS.

ところで、セットプレート４の孔部９としては、ねじ孔として、ねじ部45と螺進退自在に、図５のように取付けても良い。このときには、ナット（固着具17，18）の内の一方を省略することができる。また、図７に示すように、引抜杆体12の基端22に（作業工具にて掴持するための）掴持用多角部23を突出状に形成したり、又は、図８に示すように作業工具を差込むマイナス型の係止溝24を形成するも、好ましい。
本発明の使用方法は、例えば、図16に示した車両のトランスミッションのハウジング（ケーシング）40の（同図右下の）ベアリング３を抜き取る場合、そのキャップ（カバー）25を取外すだけで、抜き治具26が使用できる。即ち、図１の使用状態説明図に示すように、シャフト１の一側面及びベアリング３の一側面が露出状態であれば、図９・図10・図１１に示すように、前述の幅Ｈが間隙寸法Ｗよりも小さいので、内輪10・外輪11の間隙部21へ差込むことができ、次に、90°だけ引抜杆体12を軸心廻りに回転させると、図12・図13・図14に示すように膨出頭部15のアゴ面部14が、内輪10・外輪11の凹溝13に引掛って、抜け止めされ、抜きボルト７を作業工具にて回転させて螺進させればスムースにベアリング３が引き抜かれてくる。なお、抜きボルト７に於て、頭部７ａの代わりに軸心直交方向のトルク付加用横杆を、付設して、回転トルクを加えるも自由である（従来の図15参照）。 By the way, the hole 9 of the set plate 4 may be attached as shown in FIG. At this time, one of the nuts (fixing members 17, 18) can be omitted. Further, as shown in FIG. 7, a gripping polygonal portion 23 (for gripping with a work tool) is formed in a protruding shape at the base end 22 of the pulling rod 12, or as shown in FIG. It is also preferable to form a negative locking groove 24 into which the work tool is inserted.
For example, when the bearing 3 (lower right of the figure) of the housing (casing) 40 of the vehicle shown in FIG. 16 is to be extracted, the removal method can be performed by simply removing the cap (cover) 25. Tool 26 can be used. That is, as shown in the use state explanatory diagram of FIG. 1, if one side surface of the shaft 1 and one side surface of the bearing 3 are in an exposed state, the aforementioned width H is as shown in FIGS. Since it is smaller than the gap dimension W, it can be inserted into the gap 21 of the inner ring 10 and the outer ring 11, and then when the pulling housing 12 is rotated about the axis by 90 °, FIG. 12, FIG. 13 and FIG. As shown in FIG. 4, the jaw surface portion 14 of the bulging head 15 is caught by the recessed groove 13 of the inner ring 10 and the outer ring 11 and is prevented from coming off. The bearing 3 is pulled out. In addition, the bolt 7 can be freely added with a torque-adding horizontal shaft in the direction orthogonal to the axial center in place of the head 7a to apply rotational torque (refer to FIG. 15 in the prior art).

また、本発明は上述の図示の実施の形態以外にも種々に設計変更自由であり、例えば、引抜杆体12を３本又は５本以上としても良い。   Further, the present invention can be modified in various ways other than the embodiment shown in the drawings. For example, the number of the pullout rods 12 may be three or five or more.

本発明は上述のようにシャフト１と孔部２との間に介装されたベアリング３を抜く為の抜き治具であって、セットプレート４と、このセットプレート４の中央から螺進退自在に螺着されてシャフト１の端面５に先端６が当接する抜きボルト７と、セットプレート４の外周縁から突設されてベアリング３の内輪10・外輪11のボール転動用凹溝13に係止可能な膨出頭部15を有する複数本の引抜杆体12とを、備えているので、ベアリング３をシャフト１と共にハウジング（ケーシング）40から取り出すことなく、単に、キャップ（カバー）25（図16参照）等を取外して、ベアリング３の片面（外側面）のみ露出させて、抜き取り作業が可能となる。従って、シャフト１とベアリング３が実車に取付けた状態のままで、ベアリング３のみを取り外すことができて、ベアリング抜き出し作業が著しく能率的に行い得る。しかも、セットプレート４の大きさは、引抜くべきベアリング３と略同一の大きさ程度で、良いので、軽量小型なものとして、狭い実車の作業空間内での作業が可能である。また、取り外したベアリング３は損傷を受けず、再使用することができる。（勿論シャフト１の損傷も生じない。）   The present invention is a pulling jig for pulling out the bearing 3 interposed between the shaft 1 and the hole 2 as described above, and is capable of screwing back and forth from the set plate 4 and the center of the set plate 4. A bolt 7 that is screwed so that the tip 6 abuts against the end surface 5 of the shaft 1, and protrudes from the outer peripheral edge of the set plate 4, and can be engaged with the ball rolling groove 13 of the inner ring 10 and outer ring 11 of the bearing 3 Since a plurality of extraction rods 12 having a bulging head 15 are provided, without removing the bearing 3 together with the shaft 1 from the housing (casing) 40, a cap (cover) 25 (see FIG. 16), etc. And only one surface (outer surface) of the bearing 3 is exposed to allow the extraction operation. Accordingly, only the bearing 3 can be removed while the shaft 1 and the bearing 3 are attached to the actual vehicle, and the bearing extraction operation can be performed extremely efficiently. Moreover, the size of the set plate 4 can be about the same size as the bearing 3 to be pulled out, so that it can be operated in a narrow working space of a real vehicle as a lightweight and compact one. Further, the removed bearing 3 is not damaged and can be reused. (Of course, the shaft 1 is not damaged.)

また、引抜杆体12は少なくとも90°回転可能として、セットプレート４の孔部９に挿通され、かつ、固着具17，18にて固定自在に取り付けられているので、ボール転動用凹溝13への係止及び抜去りが、迅速に行い得て、全体の作業能率は一層改善できる。そして、膨出頭部15は軸心方向から見て円形から２つの三日月部46，46を削除して平行な２つの弦47，47を有する長円形状とし、かつ、アゴ面部14はアール凸面16を有する構成であり、膨出頭部15を一層スムースに内輪10・外輪11の間隙部21へ差込み易く、ボール転動用凹溝13に対して、引抜力を作用させた際の接触面圧が低く、凹溝13内面を損傷させることを、有効に防止できる。   Further, the pulling rod 12 can be rotated at least 90 °, is inserted through the hole 9 of the set plate 4 and is fixedly fixed by the fixing members 17 and 18. Locking and unplugging can be performed quickly, and the overall work efficiency can be further improved. The bulging head 15 is formed into an oval shape having two chords 47, 47 by removing the two crescent parts 46, 46 from a circular shape when viewed from the axial direction, and the jaw surface part 14 is a round convex surface 16. The bulging head 15 can be inserted more smoothly into the gap 21 between the inner ring 10 and the outer ring 11, and the contact surface pressure when the pulling force is applied to the ball rolling concave groove 13 is low. It is possible to effectively prevent the inner surface of the groove 13 from being damaged.

また、膨出頭部15の平行な弦の幅Ｈはベアリング３の内輪10の外周面19と外輪11の内周面20との間の間隙部21の間隔寸法Ｗよりも小さく設定されており、膨出頭部15を間隙部21に差込可能に構成されているので、内輪10・外輪11の間隙部21へスムースに差込み易く、作業性が一層向上できる。   The width H of the parallel string of the bulging head 15 is set to be smaller than the interval dimension W of the gap 21 between the outer peripheral surface 19 of the inner ring 10 of the bearing 3 and the inner peripheral surface 20 of the outer ring 11. Since the bulging head 15 is configured to be able to be inserted into the gap 21, it can be easily inserted smoothly into the gap 21 of the inner ring 10 and the outer ring 11, and workability can be further improved.

また、引抜杆体12の基端22には掴持用多角部23又は作業工具用の係止溝24を有するので、引抜杆体12を（その軸心廻りに）90°回転して、凹溝13に係止させ、逆に、離脱させることが、確実・容易となる。   Further, since the base end 22 of the pulling rod 12 has the gripping polygonal portion 23 or the locking groove 24 for the work tool, the pulling rod 12 is rotated by 90 ° (around its axis) to form the concave groove 13 It is reliable and easy to be locked and to disengage.

使用状態を示す本発明の実施の一形態の一部断面側面図である。It is a partial cross section side view of one Embodiment of this invention which shows a use condition. 要部拡大図である。It is a principal part enlarged view. 抜き治具の斜視図である。It is a perspective view of a extraction jig. 一部断面正面図である。It is a partial cross section front view. 変形例を示す要部拡大図である。It is a principal part enlarged view which shows a modification. 引抜杆体の一例を示す図であり、（ａ）は正面図、（ｂ）は側面図である。It is a figure which shows an example of a drawing rod, (a) is a front view, (b) is a side view. 引抜杆体の他の例を示す図であり、（ａ）は正面図、（ｂ）は要部側面図である。It is a figure which shows the other example of a drawing rod, (a) is a front view, (b) is a principal part side view. 引抜杆体の別の例を示す図であり、（ａ）は正面図、（ｂ）は要部側面図である。It is a figure which shows another example of a drawing rod, (a) is a front view, (b) is a principal part side view. 要部断面正面図である。It is a principal part sectional front view. 図９のＡーＡ断面矢視図である。FIG. 10 is a cross-sectional view taken along line AA in FIG. 9. 図９のＢーＢ断面図である。It is BB sectional drawing of FIG. 係止状態を示す要部断面正面図である。It is a principal part cross-sectional front view which shows a latching state. 図12のＣーＣ断面矢視図である。It is CC sectional view taken on the line in FIG. 図12のＤーＤ断面図である。FIG. 13 is a sectional view taken along the line D-D in FIG. 12. 従来のベアリング用抜き治具の使用状態説明図である。It is explanatory drawing of the use condition of the conventional bearing extraction jig | tool. 本発明の用途の一例を示す断面図である。It is sectional drawing which shows an example of the use of this invention.

符号の説明Explanation of symbols

１ シャフト
２ 孔部
３ ベアリング
４ セットプレート
５ 端面
６ 先端
７ 抜きボルト
７ａ ボルト頭部
９ 孔部
10 内輪
11 外輪
12 引抜杆体
13 ボール転動用凹溝
14 アゴ面部
15 膨出頭部
16 アール凸面
17 固着具
18 固着具
19 外周面
20 内周面
21 間隙部
22 基端
23 掴持用多角部
24 係止溝
26 ベアリング用抜き治具
40 ハウジング（ケーシング）
46 三日月部
47 弦
Ｈ 弦の幅
Ｗ 間隙寸法 1 Shaft
2 hole 3 bearing 4 set plate 5 end face 6 tip 7 extraction bolt 7a bolt head 9 hole
10 Inner ring
11 Outer ring
12 Pulling housing
13 Groove for ball rolling
14 jaw surface
15 bulge head
16 are convex
17 Fastener
18 Fastener
19 Outer surface
20 Inner surface
21 Gap
22 proximal
23 Polygonal part for gripping
24 Locking groove
26 Bearing extraction jig
40 Housing (casing)
46 Crescent
47 string H string width W gap size

Claims (5)

シャフト（１）と孔部（２）との間に介装されたベアリング（３）を抜く為の抜き治具であって、セットプレート（４）と、該セットプレート（４）の中央から螺進退自在に螺着されて上記シャフト（１）の端面（５）に先端（６）が当接する抜きボルト（７）と、上記セットプレート（４）の外周縁から突設されて上記ベアリング（３）の内輪（10）・外輪（11）のボール転動用凹溝（13）に係止可能な膨出頭部（15）を有する複数本の引抜杆体（12）とを、備えたことを特徴とするベアリング用抜き治具。   A removal jig for removing a bearing (3) interposed between a shaft (1) and a hole (2), comprising a set plate (4) and a screw from the center of the set plate (4) A bolt (7) that is screwed so as to be able to advance and retreat and a tip (6) abuts on an end surface (5) of the shaft (1), and a bearing (3) ) And a plurality of extraction rods (12) having bulging heads (15) that can be locked in the groove (13) for ball rolling of the inner ring (10) and outer ring (11). Bearing removal tool to be used. 上記引抜杆体（12）は少なくとも90°回転可能として、上記セットプレート（４）の孔部（９）に挿通され、かつ、固着具(17)(18)にて固定自在に取り付けられている請求項１記載のベアリング用抜き治具。   The drawing rod (12) is rotatable at least 90 °, is inserted through the hole (9) of the set plate (4), and is fixedly attached by fixing tools (17) (18). Item 1. A bearing extraction jig according to Item 1. 上記膨出頭部（15）は軸心方向から見て円形から２つの三日月部(46)(46)を削除して平行な２つの弦(47)(47)を有する長円形状であり、かつ、アゴ面部（14）はアール凸面（16）を有する請求項２記載のベアリング用抜き治具。   The bulging head (15) has an oval shape having two strings (47) and (47) parallel to each other by removing two crescent parts (46) and (46) from a circle when viewed from the axial direction, and The jaw-extracting jig according to claim 2, wherein the jaw surface portion (14) has a rounded convex surface (16). 上記膨出頭部（15）の平行な上記弦の幅（Ｈ）は上記ベアリング（３）の内輪（10）の外周面（19）と外輪（11）の内周面（20）との間の間隙部（21）の間隔寸法（Ｗ）よりも小さく設定されており、上記膨出頭部（15）を上記間隙部（21）に差込可能に構成された請求項３記載のベアリング用抜き治具。   The width (H) of the parallel chord of the bulging head (15) is between the outer peripheral surface (19) of the inner ring (10) of the bearing (3) and the inner peripheral surface (20) of the outer ring (11). The bearing blank according to claim 3, wherein the clearance dimension (W) is set smaller than the gap dimension (21), and the bulging head (15) can be inserted into the gap (21). Ingredients. 上記引抜杆体（12）の基端（22）には掴持用多角部（23）又は作業工具用の係止溝（24）を有する請求項２，３又は４記載のベアリング用抜き治具。   The bearing extraction jig according to claim 2, 3 or 4, wherein the base end (22) of the drawing rod (12) has a gripping polygon (23) or a locking groove (24) for a work tool.
JP2006331672A 2006-12-08 2006-12-08 Bearing extraction jig Expired - Fee Related JP5032834B2 (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011219208A (en) * 2010-04-07 2011-11-04 Ntn Corp Suspender for rolling bearing and assembling method of rolling bearing
WO2014170509A1 (en) * 2013-04-15 2014-10-23 Universidad De Málaga Extractor and method for extracting heads of instruments for hydrological measurements
KR200477302Y1 (en) * 2013-11-29 2015-05-28 한전케이피에스 주식회사 Motor Housing Disassembly Tool
DE102015206148A1 (en) * 2015-04-07 2016-10-27 Aktiebolaget Skf Method for disassembling at least one bearing ring and bearing ring
CN106181873A (en) * 2016-08-27 2016-12-07 安徽阿莫斯泵业有限公司 A kind of axle envelope demounting tool
CN106312854A (en) * 2016-09-20 2017-01-11 北京机械设备研究所 Compression device manually providing pressure
CN106808421A (en) * 2015-11-30 2017-06-09 江苏核电有限公司 High-temperature steam helps pass valve packing removing apparatus
CN108819277A (en) * 2018-05-30 2018-11-16 宁波江丰电子材料股份有限公司 Product stationary fixture and method
CN109515610A (en) * 2018-09-26 2019-03-26 武汉船用机械有限责任公司 A kind of oil pipe mobile device
CN110774216A (en) * 2019-09-25 2020-02-11 中车永济电机有限公司 Device for assembling pull rod of round long motor and use method thereof
JP2020043696A (en) * 2018-09-11 2020-03-19 株式会社東芝 How to replace bearings in rotating electrical machines
CN113043217A (en) * 2021-05-12 2021-06-29 靖江威尔通信技术有限公司 Dismounting puller for bearing outer ring in hole and operation method thereof
CN118848880A (en) * 2024-09-26 2024-10-29 成都中科翼能科技有限公司 A disassembly tool and disassembly method for a grate sealing ring of a low-pressure turbine rotor

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JPS58160064A (en) * 1982-03-01 1983-09-22 ロバ−ト・ジヨ−ジ・デンミ−ド Bearing stretcher

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011219208A (en) * 2010-04-07 2011-11-04 Ntn Corp Suspender for rolling bearing and assembling method of rolling bearing
WO2014170509A1 (en) * 2013-04-15 2014-10-23 Universidad De Málaga Extractor and method for extracting heads of instruments for hydrological measurements
KR200477302Y1 (en) * 2013-11-29 2015-05-28 한전케이피에스 주식회사 Motor Housing Disassembly Tool
DE102015206148A1 (en) * 2015-04-07 2016-10-27 Aktiebolaget Skf Method for disassembling at least one bearing ring and bearing ring
CN106808421A (en) * 2015-11-30 2017-06-09 江苏核电有限公司 High-temperature steam helps pass valve packing removing apparatus
CN106181873A (en) * 2016-08-27 2016-12-07 安徽阿莫斯泵业有限公司 A kind of axle envelope demounting tool
CN106312854A (en) * 2016-09-20 2017-01-11 北京机械设备研究所 Compression device manually providing pressure
CN108819277A (en) * 2018-05-30 2018-11-16 宁波江丰电子材料股份有限公司 Product stationary fixture and method
JP2020043696A (en) * 2018-09-11 2020-03-19 株式会社東芝 How to replace bearings in rotating electrical machines
JP7080776B2 (en) 2018-09-11 2022-06-06 株式会社東芝 How to replace the bearing of a rotary electric machine
CN109515610A (en) * 2018-09-26 2019-03-26 武汉船用机械有限责任公司 A kind of oil pipe mobile device
CN109515610B (en) * 2018-09-26 2019-12-06 武汉船用机械有限责任公司 Oil pipe moving device
CN110774216A (en) * 2019-09-25 2020-02-11 中车永济电机有限公司 Device for assembling pull rod of round long motor and use method thereof
CN113043217A (en) * 2021-05-12 2021-06-29 靖江威尔通信技术有限公司 Dismounting puller for bearing outer ring in hole and operation method thereof
CN118848880A (en) * 2024-09-26 2024-10-29 成都中科翼能科技有限公司 A disassembly tool and disassembly method for a grate sealing ring of a low-pressure turbine rotor

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