JPH06106484A - Extraction of gear and picking out apparatus thereof - Google Patents

Extraction of gear and picking out apparatus thereof

Info

Publication number
JPH06106484A
JPH06106484A JP29758892A JP29758892A JPH06106484A JP H06106484 A JPH06106484 A JP H06106484A JP 29758892 A JP29758892 A JP 29758892A JP 29758892 A JP29758892 A JP 29758892A JP H06106484 A JPH06106484 A JP H06106484A
Authority
JP
Japan
Prior art keywords
gear
peripheral wall
claw
extracting
groove
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
JP29758892A
Other languages
Japanese (ja)
Inventor
Kenichi Maeda
鍵一 前田
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.)
AICHI KIKI KK
Original Assignee
AICHI KIKI KK
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 AICHI KIKI KK filed Critical AICHI KIKI KK
Priority to JP29758892A priority Critical patent/JPH06106484A/en
Publication of JPH06106484A publication Critical patent/JPH06106484A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To pick out a gear smoothly without operating a picking out bolt by means of a tap causing distortion even if clearance does not exist between a wall surface and a wall side end surface of the gear. CONSTITUTION:When a gear 1 having a groove 7 on the outer peripheral wall of the gear and a claw 11 bent in an outside diameter direction are fitted to each other in the groove 7 in an end direction of bowl shape picking out metal 9 and a bolt 13 of a screw hole 8 is rotated, the gear 1 is moved in a picking out metal 9 direction, and it can be picked out.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、嵌入された歯車を抜き
出すための方法と抜き出し器具に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a tool for extracting a fitted gear.

【0002】[0002]

【従来の技術】従来、嵌入された歯車、例えばミッショ
ンケースに嵌通された軸の先端に歯車が嵌入されてお
り、ボックス壁面と歯車のボックス側端面にすき間がな
い場合、歯車を抜き出す方法として、あらかじめ歯車の
端面にタップねじが施されておりボルトやテコの応用で
抜き出していた。
2. Description of the Related Art Conventionally, as a method for pulling out a gear that has been fitted, for example, when a gear is fitted at the tip of a shaft fitted in a transmission case and there is no gap between the box wall surface and the box side end face of the gear. , The end face of the gear was tapped in advance and it was pulled out by applying bolts and levers.

【0003】[0003]

【発明が解決しようとする課題】従来の歯車の抜き出し
方法は、抜き出す歯車の構造的態様によって多様な抜き
出し方法があり、公知公用として例えばプーリーを軸か
ら抜き出す場合、モーター側のプーリー端面に、プーリ
ー抜きの軸芯方向へ折曲した爪を引っ掛けて、ボルトの
先端をモーター軸センターに押し当ててボルトを回すこ
とでプーリーが前進して抜けるが、これはあくまでモー
ターカバー端面とプーリー端面とのあいだに、広い空間
があるから爪が入るのであって、空間がなかったら爪が
入らず抜き出すことはできないという問題点があった。
There are various extraction methods of the conventional gear according to the structural mode of the gear to be extracted. For example, when the pulley is extracted from the shaft as a publicly known method, the pulley is attached to the end face of the pulley on the motor side. Hook the claw bent in the axial direction of the removal, press the tip of the bolt against the center of the motor shaft and rotate the bolt to move the pulley forward, but this is just between the end surface of the motor cover and the end surface of the pulley. In addition, there is a problem that the nails can be inserted because there is a large space, and the nails cannot be extracted without the nails if there is no space.

【0004】前述のように引っ掛りがない条件での歯車
を抜き出す方法として、歯車の端面に任意の捨てタップ
ねじを施し、テコの中心に押し出し用のねじを施して、
両端にはボルト穴を明けて、歯車とテコを締め付けてか
ら、中心のボルトをねじ込みながら抜き出していた。こ
の方法は歯車端面にねじ穴工作の工程を要し、抜き出し
器具のセットにも時間を要して、コスト高になる問題点
があった。
As described above, as a method of extracting a gear under the condition that there is no catch, an arbitrary tap screw is applied to the end surface of the gear, and a pushing screw is applied to the center of the lever,
I made bolt holes at both ends, tightened the gear and lever, and then pulled out the bolt at the center while screwing it in. This method has a problem that it requires a process of machining a screw hole on the end face of the gear, and it also takes time to set the extraction device, resulting in a high cost.

【0005】前述の抜き出し方法は、歯車の端面に任意
の下穴、タップ工程の工作が、材料の塑性運動によって
歪みが伴い、熱処理後に歯車の歯型精度に影響を及ぼす
という問題点があった。
The above-mentioned extraction method has a problem in that an arbitrary prepared hole on the end face of the gear and the work in the tapping process are accompanied by distortion due to the plastic motion of the material, which affects the tooth profile accuracy of the gear after heat treatment. .

【0006】本発明は、前掲のようにタップねじ穴の廃
止、歯型精度の向上を目的としており、さらに抜き出す
時のセット方法が容易であり、なおかつ、歯型精度の品
質向上に合せ、コスト的に時間短縮と経費削減達成のた
めに、歯車の抜き出す方法とその抜き出し器具を提供す
ることを目的としているものである。
The present invention aims to eliminate tap screw holes and improve the accuracy of the tooth mold as described above. Further, the setting method at the time of withdrawing is easy, and the cost is improved according to the improvement of the accuracy of the tooth mold. The object of the present invention is to provide a method for extracting a gear and a device for extracting the gear, in order to achieve time reduction and cost reduction.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するため
に、本発明の歯車の抜き出す方法とその抜き出し器具に
おいては、歯車の端面の内外周壁にミゾを入れて、ミゾ
に爪を挿入するために、おわん形状の縁方向に爪を外径
方向、または軸芯方向に折り曲げたものである。
In order to achieve the above object, in the method for extracting a gear and the device for extracting the same according to the present invention, a groove is formed on the inner and outer peripheral walls of the end surface of the gear and a claw is inserted into the groove. In addition, the claw is bent in the outer diameter direction or the axial center direction in the edge direction of the bowl shape.

【0008】歯車の内周壁に多角形のへこみを設けたも
のと、これとは反対に別の歯車のボスの外周壁に平取り
面を設けたものである。
A gear having an inner peripheral wall provided with a polygonal dent and a boss having another gear provided with a flat surface on the outer peripheral wall thereof, on the contrary.

【0009】歯車の内周壁のものと、これとは別の歯車
のボスの外周壁に、それぞれミゾを入れたものである。
The inner peripheral wall of the gear and the outer peripheral wall of the boss of the gear different from the inner peripheral wall are provided with grooves.

【0010】軸中心にねじ穴を設けたおわん形状の押し
出し金であり、前記外周軸方向へ多角形の平取り面が設
けられており、前記平取り面と平取り面との縁方向各頂
角近傍に、外径方向へ折曲した爪が設けられているので
ある。
This is a bowl-shaped pusher having a screw hole at the center of the shaft, and a polygonal flattening surface is provided in the outer peripheral axial direction. The claws bent in the outer diameter direction are provided near the corners.

【0011】前記の抜き出し金の爪を、反対に軸芯方向
へ折曲したものである。
The nail of the withdrawal metal is bent in the axial direction in the opposite direction.

【0012】おわん形状の抜き出し金の付け根に回り止
め棒を適数設けたものである。
An appropriate number of rotation stopping rods are provided at the base of the bowl-shaped withdrawal metal.

【0013】おわん形状の抜き出し金の軸中心にねじ穴
が設けてあり、このねじ穴に先の尖がったボルトをねじ
込むことを構成した歯車の抜き出し方法とその抜き出し
器具となっている。
A screw hole is provided at the center of the shaft of a bowl-shaped withdrawal die, and a gear withdrawing method and an extracting tool for the same are constructed by screwing a bolt having a pointed end into this screw hole.

【0014】[0014]

【作用】上記のように構成されているから、歯車の端面
内周壁や外周壁にミゾが設けてあり、歯車の抜き出し金
の外径方向へ折曲した爪、または軸芯方向へ折曲した爪
を、このミゾへ嵌着する。
With the above-described structure, the end face of the gear is provided with grooves on the inner peripheral wall or outer peripheral wall, and the gear withdrawal metal is bent in the outer diameter direction or bent in the axial center direction. The nail is fitted into this groove.

【0015】おわん形状の抜き出し金の軸中心のねじ穴
に、先の尖がったボルトをねじ込み、歯車中心軸より突
出した軸のセンターに、前記先の尖がったベルトを当接
させて回す。この時片手で回り止め棒を支えながら、な
おも回し続けると抜き出し金方向へ歯車が引っ張られる
働きをする。
A pointed bolt is screwed into the screw hole at the center of the shaft of the bowl-shaped withdrawal die, and the pointed belt is brought into contact with the center of the shaft protruding from the gear center shaft. turn. At this time, while continuing to rotate while supporting the detent bar with one hand, the gear works to pull in the direction of the withdrawal metal.

【0016】[0016]

【実施例】実施例について図面を参照しながら説明する
と、図1は本発明の歯車1のミゾ7と、おわん形状の抜
き出し金9と、縁方向の爪11を示す好適実施例の断面
図である。なお、図1の実施例のものは四面平取り面1
0が設けられている。図示しないが、ミッションケース
壁面より突出しているインボリュート軸14に歯車1が
嵌入されて壁面に密着している。歯車1の端面内周壁2
にはミゾ7が設けられており、歯車1の形状は図3の
(a),(b)に示すとおりである。ミゾ7には抜き出
し金9の爪11が嵌合している。爪11が嵌合した状態
で回り止め棒12を手で支えて、片手でねじ穴18にら
入されているボルト13を回しながら、インボリュート
軸14のセンター穴15に当てて、さらに回すと歯車1
はねじの運動原理により、抜き出し金9方向へ抜けるの
である。なお、回り止め棒12の実施例のものは4等分
であるが、3等分でも2等分でもよい。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a preferred embodiment showing a groove 7 of a gear 1 of the present invention, a bowl-shaped withdrawal metal 9 and a claw 11 in an edge direction. is there. The embodiment of FIG. 1 has four flattened surfaces 1
0 is provided. Although not shown, the gear 1 is fitted into the involute shaft 14 projecting from the wall surface of the mission case and is in close contact with the wall surface. End face inner peripheral wall 2 of gear 1
The groove 7 is provided in the gear, and the shape of the gear 1 is as shown in FIGS. 3 (a) and 3 (b). The claw 11 of the withdrawal gold 9 is fitted to the groove 7. With the pawl 11 fitted, while supporting the anti-rotation rod 12 by hand and turning the bolt 13 inserted in the screw hole 18 with one hand, hit the center hole 15 of the involute shaft 14 and turn it further to rotate the gear. 1
Is pulled out in the direction of the withdrawal metal 9 according to the principle of movement of the screw. In addition, although the embodiment of the whirl-stop rod 12 is divided into four equal parts, it may be divided into three equal parts or two equal parts.

【0017】図2は、従来の抜き出し手段を示す断面図
である。図示しないがミッションケース壁面に密着した
歯車dと、テコaの中心にはボルトcと、テコaの両端
にはボルトねじbがそれぞれ歯車dのねじ部にら入され
ており、ボルトcを回すと歯車dは抜ける。この実施例
は、歯車dの端面に最低二箇所の中途下穴を明けて、タ
ップ工程がある。熱処理後、歯型検査の結果歯車dの歯
型精度に影響を及ぼす。下穴、タップ、熱処理のために
材料の塑性による歪みが発生する。
FIG. 2 is a sectional view showing a conventional extracting means. Although not shown, a gear d that is in close contact with the wall surface of the mission case, a bolt c at the center of the lever a, and bolt screws b at both ends of the lever a are respectively inserted into the threaded portion of the gear d, and the bolt c is rotated. And the gear d comes off. In this embodiment, at least two intermediate prepared holes are formed on the end surface of the gear d, and there is a tap step. After the heat treatment, the result of the tooth profile inspection affects the tooth profile accuracy of the gear d. Strain due to plasticity of the material occurs due to the prepared hole, tap, and heat treatment.

【0018】図3は、本発明の歯車1の形状図である。
実施例のものは四角のへこみ3である。へこみ3の端面
からの深さは4.1ミリである。図3の(b)に図示す
るように、端面から2ミリ入ったところに2ミリ巾のミ
ゾ7を入れる。φ56ミリのミゾ7であり、抜き出し金
の爪11の外径は55.8ミリである。爪11の巾は
1.9ミリである。なお、へこみ3の上下左右の巾は5
2ミリであり、抜き出し金9の平取り面10の巾は51
ミリである。歯車1の四角のへこみ3とおわん形状の抜
き出し金9の四角の平取り面10を合せて、手で押しな
がら回すと、ミゾ7と爪11はしっくり嵌合する。な
お、図5はこの実施例の抜き出し金9の斜視図である。
この実施例は、ミゾ7を入れた熱処理後も歯型精度に影
響を及ぼすこともなく、従来のようなタップ工程による
歪みも見受けられない。
FIG. 3 is a shape view of the gear 1 of the present invention.
In the example, the dent 3 is a square. The depth from the end face of the dent 3 is 4.1 mm. As shown in FIG. 3B, a 2 mm wide groove 7 is inserted at a position 2 mm from the end face. The groove 7 has a diameter of 56 mm, and the outer diameter of the withdrawal jaw 11 is 55.8 mm. The width of the nail 11 is 1.9 mm. It should be noted that the width of the dent 3 at the top, bottom, left and right is 5
2 mm, the width of the flat surface 10 of the withdrawal gold 9 is 51
It is millimeter. When the square dent 3 of the gear 1 and the square flattening surface 10 of the bowl-shaped withdrawal piece 9 are aligned and pushed by hand and turned, the groove 7 and the claw 11 are fitted firmly. 5 is a perspective view of the withdrawal die 9 of this embodiment.
In this embodiment, the tooth profile accuracy is not affected even after the heat treatment in which the groove 7 is placed, and no distortion due to the conventional tapping process is observed.

【0019】図4は、本発明の図3と正反対の構造を持
つ形状図である。実施例のものは四角のボス形状であ
り、平取り面6が設けられている。ボス4の端面から2
ミリ入ったところに、2ミリ巾のミゾ7を入れる。φ2
6ミリのミゾである。図6に示すように爪11の方向が
図5の爪11と反対方向の斜視図である。内径φ28ミ
リの端面より2ミリ入ったところに1.9ミリ巾の爪1
1が軸芯方向へ突出している。爪11の内径はφ26.
3ミリである。平取り面6の中間に爪11を見さだめて
押し込むと、ボス4の端面と1.9ミリ巾の爪11に当
接する。抜き出し金9を回すと、図4の(a′),
(b′)のミゾ7に爪11が嵌合する。この実施例は、
図3、図5同様にミゾ7は、ボス4形状であっても、熱
処理後の歯型精度に影響を及ぼすこともなく、従来のよ
うなタップ工程による歪みも見受けられない。
FIG. 4 is a shape diagram having a structure opposite to that of FIG. 3 of the present invention. The example has a square boss shape and is provided with a flattened surface 6. 2 from the end of boss 4
Place 2 mm wide groove 7 at the place where it enters the millimeter. φ2
It is a 6 mm groove. FIG. 7 is a perspective view in which the direction of the claw 11 as shown in FIG. 6 is opposite to that of the claw 11 of FIG. 5. Claw 1 with a width of 1.9 mm where it enters 2 mm from the end surface with an inner diameter of 28 mm
1 projects in the axial direction. The inner diameter of the claw 11 is φ26.
It is 3 mm. When the claw 11 is located in the middle of the flat surface 6 and pushed in, the claw 11 comes into contact with the end surface of the boss 4 and the claw 11 having a width of 1.9 mm. When the withdrawal gold 9 is turned, (a ') in FIG.
The claw 11 fits into the groove 7 shown in (b '). This example
Similarly to FIGS. 3 and 5, even if the groove 7 has the shape of the boss 4, it does not affect the accuracy of the tooth profile after the heat treatment, and no distortion due to the conventional tapping process is observed.

【0020】[0020]

【発明の効果】本発明は、以上説明したように構成され
ているので、下記の記載されるような効果を奏するもの
である。
Since the present invention is constructed as described above, it has the following effects.

【0021】歯車の抜き出し手段としてのタップを廃止
したことにより、熱処理後も歪みが出ることもなく、安
定した歯型精度の歯車が供給できる。
By eliminating the tap as a gear extracting means, it is possible to supply a gear having stable tooth profile accuracy without causing distortion even after heat treatment.

【0022】歯車の内外周壁に、引っ掛かりの手段とし
てミゾを設けて、このミゾに抜き出し金の爪を嵌合した
ことにより、ねじで引っ張るだけで簡単に抜き出すこと
ができて、煩雑な抜き出し時間が大巾に短縮でき、経費
が削減できる。
By providing a groove on the inner and outer peripheral walls of the gear as a catching means and fitting a claw of a withdrawal metal to this groove, it can be easily withdrawn only by pulling with a screw, and a complicated withdrawal time is required. It can be greatly shortened and the cost can be reduced.

【0023】おわん形状の抜き出し金の構造にしたこと
により、コンパクトになって、狭い場所でも快適に抜き
出すことができる。
The structure of the bowl-shaped withdrawal metal makes it compact and can be comfortably withdrawn even in a narrow space.

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

【図1】本発明の好適実施例を示す断面図。FIG. 1 is a sectional view showing a preferred embodiment of the present invention.

【図2】従来の歯車の抜き出し手段を示す断面図。FIG. 2 is a cross-sectional view showing a conventional gear extracting means.

【図3】好適実施例の歯車のへこみ形状図。FIG. 3 is a dent shape diagram of a gear according to a preferred embodiment.

【図4】好適実施例の歯車のボス形状図。FIG. 4 is a boss shape diagram of a gear according to a preferred embodiment.

【図5】爪が外径方向へ折曲した抜き出し金の斜視図。FIG. 5 is a perspective view of a withdrawal metal having a claw bent outward in a radial direction.

【図6】爪が軸芯方向へ折曲した抜き出し金の斜視図。FIG. 6 is a perspective view of a withdrawal metal having a claw bent in the axial direction.

【符号の説明】[Explanation of symbols]

1 歯車 2 内周壁 3 へこみ 4 ボス 5 外周壁 6 平取り面 7 ミゾ 8 ねじ穴 9 抜き出し金 10 平取り面 11 爪 12 回り止め棒 13 ボルト 14 インボリュート軸 15 センター穴 a テコ b ボルトねじ c ボルト d 歯車 1 gear 2 inner peripheral wall 3 dent 4 boss 5 outer peripheral wall 6 flat surface 7 groove 8 screw hole 9 withdrawal metal 10 flat surface 11 claw 12 non-rotating rod 13 bolt 14 involute shaft 15 center hole a lever b bolt screw c bolt d gear

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 歯車(1)の内周壁(2)に多角形のへ
こみ(3)を設けた歯車の抜き出し方法。
1. A method for extracting a gear, wherein a polygonal recess (3) is provided on an inner peripheral wall (2) of the gear (1).
【請求項2】 歯車(1)のボス(4)の外周壁(5)
に多角形の平取り面(6)を設けた歯車の抜き出し方
法。
2. Outer peripheral wall (5) of the boss (4) of the gear (1)
A method for extracting a gear in which a polygonal flattened surface (6) is provided on the.
【請求項3】 歯車(1)の内周壁(2)と外周壁
(5)にミゾ(7)を設けた請求項1又は2記載の歯車
の抜き出し方法。
3. The method of extracting a gear according to claim 1, wherein the inner peripheral wall (2) and the outer peripheral wall (5) of the gear (1) are provided with grooves (7).
【請求項4】 軸中心にねじ穴(8)を設けたおわん形
状の抜き出し金(9)であって前記外周軸方向へ多角形
の平取り面(10)が形成されており、前記平取り面
(10)と平取り面(10)の縁方向頂角近傍に、外径
方向へ折曲した爪(11)を設けており、おわん形状の
抜き出し金(9)の付け根に回り止め棒(12)を適数
設け、ねじ穴(8)にボルト(13)をねじ込む歯車の
抜き出し器具。
4. A bowl-shaped withdrawal metal (9) having a screw hole (8) at the center of the shaft, wherein a polygonal flattening surface (10) is formed in the outer peripheral axial direction. A claw (11) bent in the outer diameter direction is provided in the vicinity of the apex angle in the edge direction between the surface (10) and the flattened surface (10), and a detent bar (9) is provided at the base of the bowl-shaped withdrawal metal (9). 12) An appropriate number of gear extraction tools for screwing bolts (13) into screw holes (8).
【請求項5】 おわん形状の抜き出し金(9)の爪(1
1)を軸芯方向へ折曲した請求項4記載の歯車の抜き出
し器具。
5. A hook (1) of a bowl-shaped withdrawal die (9)
The gear extracting device according to claim 4, wherein 1) is bent in the axial direction.
JP29758892A 1992-09-24 1992-09-24 Extraction of gear and picking out apparatus thereof Pending JPH06106484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29758892A JPH06106484A (en) 1992-09-24 1992-09-24 Extraction of gear and picking out apparatus thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29758892A JPH06106484A (en) 1992-09-24 1992-09-24 Extraction of gear and picking out apparatus thereof

Publications (1)

Publication Number Publication Date
JPH06106484A true JPH06106484A (en) 1994-04-19

Family

ID=17848501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29758892A Pending JPH06106484A (en) 1992-09-24 1992-09-24 Extraction of gear and picking out apparatus thereof

Country Status (1)

Country Link
JP (1) JPH06106484A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100391466B1 (en) * 2001-06-12 2003-07-16 현대자동차주식회사 Rivet removing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100391466B1 (en) * 2001-06-12 2003-07-16 현대자동차주식회사 Rivet removing apparatus

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