JPH07259929A - Device for adjusting backlash of gear - Google Patents

Device for adjusting backlash of gear

Info

Publication number
JPH07259929A
JPH07259929A JP4839094A JP4839094A JPH07259929A JP H07259929 A JPH07259929 A JP H07259929A JP 4839094 A JP4839094 A JP 4839094A JP 4839094 A JP4839094 A JP 4839094A JP H07259929 A JPH07259929 A JP H07259929A
Authority
JP
Japan
Prior art keywords
gear
toothed belt
gears
backlash
belt pulley
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.)
Withdrawn
Application number
JP4839094A
Other languages
Japanese (ja)
Inventor
Yukikazu Shoji
幸和 小路
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP4839094A priority Critical patent/JPH07259929A/en
Publication of JPH07259929A publication Critical patent/JPH07259929A/en
Withdrawn legal-status Critical Current

Links

Landscapes

  • Rotary Presses (AREA)
  • Gear Transmission (AREA)
  • Gears, Cams (AREA)

Abstract

PURPOSE:To minimize a pair of gears which are engaged with each other or the backlash of a series of gears by providing a toothed belt pulley and a toothed belt on the gears to be engaged. CONSTITUTION:The fluctuation of the backlash to be generated by the error for each circumferential pitch between a pair of gears to be engaged with each other or a series of gears 12, 13, 14, 15, 16 is absorbed by the spring effect due to the elasticity of a toothed belt stretched between toothed belt pulleys 20, 21. When a bolt 22 is loosened, and a shaft 17a or the gear 16 is turned relative to the toothed belt pulley 21, the integrated backlash between a series of gears 12 to 16 is adjusted, and the toothed belt pulley 21 is fixed to a flange 19 by the bolt 22. The fluctuation of the backlash to be generated due to the error in the manufacturing and assembly for each circumferential pitch of each gear can be absorbed by the spring effect due to the elasticity of the toothed belt. In addition, the gear for adjusting the backlash is dispensed with, the device is simplified, and the cost is remarkably reduced.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は互いに噛合う一対の歯車
或いは一連の歯車間のバックラッシュを調整する歯車の
バックラッシュ調整装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gear backlash adjusting device for adjusting the backlash between a pair of gears or a series of gears meshing with each other.

【0002】[0002]

【従来の技術】互いに噛合う一対の歯車間のバックラッ
シュを調整する従来の装置としては、図4、図5に示す
ようなものが提案されている。この例のものは歯車1と
噛合う歯車2が、固定側歯車3と、同歯車3の軸3aに
対して回動し得るように嵌合しているバックラッシュ調
整用歯車4とから構成されている。またバックラッシュ
調整用歯車4には複数の円弧条の溝4aと4bとが設け
られていて、これらの溝4a,4bを通じて、それぞれ
嵌入緊締するボルト5にて、歯車4が歯車3に対して相
対回転調整自在に固定されている。以上の構成のもと
に、歯車間の噛合いバックラッシュを調整する時には、
歯車1と噛合った状態でボルト5を弛め、バックラッシ
ュ調整用歯車4を円弧状の溝4a,4bの範囲内で円周
方向にずらし、歯車1の歯を歯車3の歯と、歯車4の歯
にて挟むようにしてバックラッシュ2を取り除き、次い
でボルト5を緊締して歯車4を歯車3に固定する。
2. Description of the Related Art As a conventional device for adjusting the backlash between a pair of gears meshing with each other, there has been proposed a device as shown in FIGS. In this example, a gear 2 meshing with a gear 1 is composed of a stationary gear 3 and a backlash adjusting gear 4 fitted to a shaft 3a of the gear 3 so as to be rotatable. ing. Further, the backlash adjusting gear 4 is provided with a plurality of arcuate grooves 4a and 4b, and the gear 4 is engaged with the gear 3 by bolts 5 which are respectively fitted and tightened through the grooves 4a and 4b. It is fixed so that relative rotation can be adjusted. Based on the above configuration, when adjusting the meshing backlash between gears,
The bolt 5 is loosened in the state of meshing with the gear 1 and the backlash adjusting gear 4 is circumferentially displaced within the range of the arcuate grooves 4a and 4b so that the gear 1 has teeth and the gear 3 has teeth. The backlash 2 is removed so as to be sandwiched by the teeth of No. 4, and then the bolt 5 is tightened to fix the gear 4 to the gear 3.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、このよ
うな従来のバックラッシュ調整用歯車を備えた歯車で
は、前記バックラッシュ調整歯車4と固定側歯車3のい
ずれも加工精度の高い歯車2枚を用意せねばならないの
でコストが嵩む等の問題があった。またバックラッシュ
調整用歯車4を備えた歯車の固定側歯車3は動力を伝え
るのに十分な歯巾を有せねばならないので、バックラッ
シュ調整用歯車の歯巾分だけ、全体として歯巾が広くな
り、従ってバックラッシュ調整用歯車を備えた歯車と噛
合う歯車1の歯巾も、同様に広くせざるを得ず、コスト
は更に高くなる。更に一連の歯車噛合装置の場合にあっ
ては、これらの歯車が噛合う個所の数だけバックラッシ
ュ調整用歯車が必要となり、コストは可成り高くなる。
そこで本発明では、バックラッシュ調整用歯車を必要と
しない低コストの歯車のバックラッシュ調整装置を提供
しようとするものである。
However, in the gear provided with such a conventional backlash adjusting gear, both the backlash adjusting gear 4 and the fixed-side gear 3 are two gears with high machining accuracy. Since it has to be done, there is a problem that the cost increases. Further, since the fixed-side gear 3 of the gear having the backlash adjusting gear 4 must have a sufficient tooth width for transmitting power, the tooth width of the backlash adjusting gear is wide as a whole by the tooth width of the gear for adjusting the backlash. Therefore, the gear width of the gear 1 that meshes with the gear having the backlash adjusting gear must be similarly widened, which further increases the cost. Further, in the case of a series of gear meshing devices, as many backlash adjusting gears are required as the number of places where these gears mesh, and the cost becomes considerably high.
Therefore, the present invention is intended to provide a low-cost gear backlash adjusting device that does not require a backlash adjusting gear.

【0004】[0004]

【課題を解決するための手段】このため本発明は、互い
に噛合う一対の歯車或いは一連の歯車の最初の歯車の軸
と最後の歯車の軸とにそれぞれ設けられた歯付ベルトプ
ーリと、これら歯付ベルトプーリ間にかけ渡された歯付
ベルトとを設けてなるもので、これを課題解決のための
手段とするものである。また本発明は、前記最初の歯車
或いは最後の歯車の軸に固設された歯付ベルトプーリ
と、前記最後の歯車或いは最初の歯車の軸に回動し得る
ように嵌入する歯付ベルトプーリとを設け、この回動し
得る歯付ベルトプーリに対し、同軸上の歯車を円周方向
に相対的に回動して締付ける装置を設けてなるもので、
これを課題解決のための手段とするものである。
For this reason, the present invention provides a toothed belt pulley provided on the shaft of the first gear and the shaft of the last gear of a pair of gears or a series of gears that mesh with each other, and A toothed belt that is stretched between toothed belt pulleys is provided, which serves as means for solving the problem. Further, the present invention provides a toothed belt pulley fixed to the shaft of the first gear or the last gear, and a toothed belt pulley fitted to the shaft of the last gear or the first gear so as to be rotatable. And a device for tightening the coaxial gear by rotating relative to the rotatable toothed belt pulley in the circumferential direction.
This is a means for solving the problem.

【0005】[0005]

【作用】本発明は以上の手段により互いに噛合う一対の
歯車或いは一連の歯車間のバックラッシュを可能な限り
最小にすることが出来、前記各歯車の円周ピッチ毎の誤
差により生ずるバックラッシュの変動は、歯付ベルトの
弾性によるばね効果にて吸収される。また歯付ベルトプ
ーリに設けられた円弧状の溝により歯付ベルトプーリに
対して歯車を回動し、歯車の位相を変化させてバックラ
ッシュを調整する方法では、大きなトルクを確実に伝達
し得る。
According to the present invention, the backlash between a pair of gears or a series of gears meshing with each other can be minimized by the above means, and the backlash caused by an error in each circumferential pitch of the gears can be minimized. The fluctuation is absorbed by the spring effect due to the elasticity of the toothed belt. Further, in the method of rotating the gear with respect to the toothed belt pulley by the arcuate groove provided on the toothed belt pulley and changing the phase of the gear to adjust the backlash, a large torque can be reliably transmitted. .

【0006】[0006]

【実施例】以下本発明の実施例を図面に基づいて説明す
ると、図1及び図2に本発明による歯車のバックラッシ
ュ調整装置の第1実施例の平面図及び側面図を示す。図
において、シリンダ11の軸11aに固設された歯車1
2より、一連の中間歯車13,14及び15を経てシリ
ンダ17の軸17aに固設された歯車16が駆動される
ようになっている。軸11a及び17aにはそれぞれフ
ランジ18及び19が固設され、これらフランジ18及
び19にはボルト22によって歯付プーリ20及び21
が軸11a及び17aに対して相対回動して取付位置を
調整し得るように取付けられている。また図2に示すよ
うに、これら歯付プーリ20及び21には歯付ベルト2
4が掛け回されて駆動回動し、歯付プーリ21には円弧
状の長溝23が設けられている。これによって、互いに
噛合う一対の歯車或いは一連の歯車間での円周ピッチ毎
の誤差により生ずるバックラッシュの変動は、歯付プー
リ20と21間に掛けまわされた歯付ベルト24の弾性
によるばね効果にて吸収できるのみならず、ボルト22
を弛め、歯付ベルトプーリに対して軸17a又は歯車1
6を回動すると一連の歯車12乃至16間の集積バック
ラッシュが最小になるように調整することが出来る。バ
ックラッシュ調整後、前記ボルト22にて歯付ベルトプ
ーリ21をフランジ19に固定する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are a plan view and a side view of a first embodiment of a gear backlash adjusting device according to the present invention. In the figure, a gear 1 fixed to a shaft 11a of a cylinder 11
2, the gear 16 fixed to the shaft 17a of the cylinder 17 is driven through a series of intermediate gears 13, 14 and 15. Flanges 18 and 19 are fixedly mounted on the shafts 11a and 17a, respectively. Toothed pulleys 20 and 21 are fixed to the flanges 18 and 19 by bolts 22.
Is mounted so that the mounting position can be adjusted by rotating relative to the shafts 11a and 17a. Further, as shown in FIG. 2, the toothed belt 20 is provided on the toothed pulleys 20 and 21.
4, the toothed pulley 21 is provided with an arc-shaped long groove 23. As a result, the fluctuation of the backlash caused by the error for each circumferential pitch between a pair of gears or a series of gears meshing with each other is caused by the elasticity of the toothed belt 24 wound between the toothed pulleys 20 and 21. Not only can it be absorbed by the effect, but also the bolt 22
The shaft 17a or gear 1 against the toothed belt pulley.
Turning 6 can be adjusted to minimize the integrated backlash between the series of gears 12-16. After adjusting the backlash, the toothed belt pulley 21 is fixed to the flange 19 with the bolt 22.

【0007】図3は本発明の第2実施例の側面図で、2
5は折機に設けられた(以下同じ)金属製三角板、2
6,27はニッピングローラ、28は金属胴、29は折
胴、30はくわえ胴である。三角板25にて走行方向に
2つに折られたウエブはニッピングローラ26と27に
て引き出され、金属胴28と折胴29との間に送り込ま
れて裁断されたのち、折胴29とくわえ胴30との間で
断裁面に平行に2つに折られる。その際に、この折られ
た折帖の断裁精度及び折り精度を向上させるため、金属
胴の歯車28g、折胴の歯車29g及びくわえ胴の歯車
30g(これら胴の外径と歯車のP,C,Dとはほぼ同
一であるので同一円にて図3に示す)の相互間のバック
ラッシュを最小にするため本発明による調整装置が採用
される。即ち、歯付ベルトプーリ31,32及び33
は、それぞれ図1及び図2と同様に、歯車28g,29
g及び30gが固設されている軸に対して相対回動して
取付位置を調整し得るように嵌入し、これら軸に固設さ
れたフランジにボルトにて固定して取付けられている。
なお、軸、フランジ、ボルトは図示していない。プーリ
33には前記第1実施例のものと同様に円弧状の溝34
が設けられており、またプーリ31,32,33を回転
させるために、これら各プーリには両面歯付ベルト35
が掛け回されている。前記円弧溝34に沿って、歯車3
0gを相対的に円周方向に回転させてバックラッシュを
最小にする手順は、図1に述べた場合と同様である。
FIG. 3 is a side view of the second embodiment of the present invention.
5 is a metal triangular plate provided on the folding machine (the same applies hereinafter), 2
6 and 27 are nipping rollers, 28 is a metal cylinder, 29 is a folding cylinder, and 30 is a gripping cylinder. The web folded in two in the running direction by the triangular plate 25 is pulled out by the nipping rollers 26 and 27, fed between the metal cylinder 28 and the folding cylinder 29 and cut, and then the folding cylinder 29 and the gripping cylinder. It is folded in two between 30 and parallel to the cutting surface. At that time, in order to improve the cutting precision and folding precision of the folded signature, the gear 28g of the metal cylinder, the gear 29g of the folding cylinder and the gear 30g of the gripper cylinder (the outer diameter of these cylinders and the gears P, C , D are approximately the same and are shown in the same circle in FIG. 3) to minimize the backlash between them. That is, the toothed belt pulleys 31, 32 and 33
Are the gears 28g and 29g as in FIGS. 1 and 2, respectively.
g and 30g are fitted so that the mounting position can be adjusted by rotating relative to the fixed shafts, and are fixed by bolts to the flanges fixed to these shafts.
The shaft, flange, and bolt are not shown. The pulley 33 has an arc-shaped groove 34 similar to that of the first embodiment.
Is provided, and in order to rotate the pulleys 31, 32, 33, each of these pulleys has a double-sided toothed belt 35.
Is hung around. Along the arc groove 34, the gear 3
The procedure for rotating 0 g relatively in the circumferential direction to minimize the backlash is the same as that described in FIG.

【0008】[0008]

【発明の効果】以上詳細に説明した如く、本発明の歯車
のバックラッシュ調整装置によれば、噛合する歯車にバ
ックラッシュ調整のための歯付ベルトプーリ及び歯付ベ
ルトを設置したので、歯付ベルトプーリに対して歯車を
相対回動させ、同歯車の位相を調整することにより、互
いに噛合う一対の歯車或いは一連の歯車のバックラッシ
ュを最小にすることが出来る。。また各歯車の円周ピッ
チ毎の製作組立上の誤差により生ずるバックラッシュの
変動を歯付ベルトの弾性によるばね効果にて吸収するこ
とが出来る。しかも従来のもののように、バックラッシ
ュ調整用歯車を必要としないので、バックラッシュ調整
装置が簡素化され、コストが著しく低減される。
As described in detail above, according to the gear backlash adjusting apparatus of the present invention, since the toothed belt pulley and the toothed belt for adjusting the backlash are provided on the meshing gears, the toothed belt pulley is provided. By rotating the gears relative to the belt pulley and adjusting the phase of the gears, the backlash of a pair of gears or a series of gears that mesh with each other can be minimized. . Further, fluctuations in backlash caused by errors in manufacturing and assembling for each circumferential pitch of each gear can be absorbed by the spring effect due to the elasticity of the toothed belt. Moreover, unlike the conventional one, since the backlash adjusting gear is not required, the backlash adjusting device is simplified and the cost is remarkably reduced.

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

【図1】本発明の第1実施例に係る歯車のバックラッシ
ュ調整装置の平面図である。
FIG. 1 is a plan view of a gear backlash adjusting device according to a first embodiment of the present invention.

【図2】図1の側面図である。FIG. 2 is a side view of FIG.

【図3】本発明の第2実施例の歯車のバックラッシュ調
整装置の側面図である。
FIG. 3 is a side view of a gear backlash adjusting device according to a second embodiment of the present invention.

【図4】従来の歯車のバックラッシュ調整装置の断面図
である。
FIG. 4 is a sectional view of a conventional gear backlash adjusting device.

【図5】図4のA矢視図である。5 is a view on arrow A in FIG. 4. FIG.

【符号の説明】[Explanation of symbols]

12,13,14,15,16 歯車 20,21 歯付ベルトプーリ 22 ボルト 23 円弧状長溝 24 歯付ベルト 28g,29g,30g 歯車 31,32,33 歯付ベルトプーリ 34 円弧状長溝 35 両面歯付ベルト 12, 13, 14, 15, 16 Gears 20, 21 Toothed belt pulley 22 Bolt 23 Arc-shaped long groove 24 Toothed belt 28g, 29g, 30g Gear 31, 32, 33 Toothed belt pulley 34 Arc-shaped long groove 35 Double-sided toothed belt

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 互いに噛合う一対の歯車或いは一連の歯
車の最初の歯車の軸と最後の歯車の軸とにそれぞれ設け
られた歯付ベルトプーリと、これら歯付ベルトプーリ間
にかけ渡された歯付ベルトよりなることを特徴とする歯
車のバックラッシュ調整装置。
1. A toothed belt pulley provided on a shaft of a first gear and a shaft of a last gear of a pair of gears or a series of gears meshing with each other, and a tooth spanned between these toothed belt pulleys. A backlash adjusting device for gears, which is characterized by comprising an attached belt.
【請求項2】 前記最初の歯車或いは最後の歯車の軸に
固設された歯付ベルトプーリと、前記最後の歯車或いは
最初の歯車の軸に回動し得るように嵌入する歯付ベルト
プーリとを設け、この回動し得る歯付ベルトプーリに対
し、同軸上の歯車を円周方向に相対的に回動して締付け
る装置を設けたことを特徴とする請求項1記載の歯車の
バックラッシュ調整装置。
2. A toothed belt pulley fixed to the shaft of the first gear or the last gear, and a toothed belt pulley rotatably fitted to the shaft of the last gear or the first gear. The gear backlash according to claim 1, further comprising: a gear provided on the coaxial belt, and a device for tightening the coaxial gear by relatively rotating the coaxial gear in the circumferential direction. Adjustment device.
JP4839094A 1994-03-18 1994-03-18 Device for adjusting backlash of gear Withdrawn JPH07259929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4839094A JPH07259929A (en) 1994-03-18 1994-03-18 Device for adjusting backlash of gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4839094A JPH07259929A (en) 1994-03-18 1994-03-18 Device for adjusting backlash of gear

Publications (1)

Publication Number Publication Date
JPH07259929A true JPH07259929A (en) 1995-10-13

Family

ID=12801972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4839094A Withdrawn JPH07259929A (en) 1994-03-18 1994-03-18 Device for adjusting backlash of gear

Country Status (1)

Country Link
JP (1) JPH07259929A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179616A (en) * 2015-10-13 2015-12-23 大连恒基数控机床有限公司 Belt pulley adjusting mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179616A (en) * 2015-10-13 2015-12-23 大连恒基数控机床有限公司 Belt pulley adjusting mechanism

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Effective date: 20010605