WO2006009318A1 - 空気抜き孔付き減速機 - Google Patents
空気抜き孔付き減速機Info
- Publication number
- WO2006009318A1 WO2006009318A1 PCT/JP2005/013887 JP2005013887W WO2006009318A1 WO 2006009318 A1 WO2006009318 A1 WO 2006009318A1 JP 2005013887 W JP2005013887 W JP 2005013887W WO 2006009318 A1 WO2006009318 A1 WO 2006009318A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- space volume
- air vent
- vent hole
- speed reducer
- lubricant
- Prior art date
Links
Classifications
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
Definitions
- the present invention relates to a speed reducer with an air vent hole in which a lubricant or the like filled in a casing of the speed reducer does not leak to the outside from the air vent hole.
- a speed reducer in which a hollow part communicating with the air vent hole is provided inside the oil plug, and a blowout prevention body of a cylindrical body having a gap part communicating with the void part on the outer periphery is passed through the void part.
- a gear is arranged in the casing of the reduction gear, but in order to reduce the frictional resistance of the sliding part, the casing is filled with a lubricant (grease, etc.).
- the lubricant filled in the reduction gear casing does not leak outside through the air vent hole without increasing the internal pressure of the reduction gear above the allowable pressure resistance of the seal part.
- the purpose is to provide such a reduction gear.
- a speed reducer is provided with a gear mechanism for decelerating and transmitting torque of an input section to an output section, and contains the gear mechanism and contains a lubricant.
- a casing forming a first internal volume portion, and a second spatial volume portion provided so as to communicate with the first internal volume portion. (Corresponding to the upper surface) It is arranged so as to be positioned vertically above a predetermined height, and an air vent hole is provided in a part of the second space volume.
- the second space volume portion is interposed vertically above the internal volume between the first internal volume portion in which the lubricant in the casing is sealed and the air vent hole, The lubricant in the first internal volume can be prevented from leaking outside through the hole.
- a volume of the second space volume portion is 10% or more of a volume of the first internal volume portion.
- the state of the lubricant in the other space volume portion can be easily observed, so the replacement time of the lubricant can be determined, Maintainability is improved.
- the amount of lubricant flowing into the second space volume part can be reduced regardless of the use state of the speed reducer. It is possible to regulate and reliably prevent the lubricant from leaking from the air vent hole.
- the pipe is preferably connected to a bottom plane of the second space volume.
- a pipe connecting the first internal volume part and the second space volume part is bent in the rotation direction in the first internal volume part.
- the internal lubricant tries to move in the radial direction due to the centrifugal force, but moves in the radial direction by the pipe bent in the direction of the rotation axis. This makes it difficult for the lubricant to move to the second space volume, and the air expanded by the temperature rise can be efficiently moved to the second space volume.
- the second space volume is formed in a cylindrical shape, a bottom plane of the second space volume communicates with the first space volume, and a top plane of the second space volume
- the air vent hole is formed.
- FIG. 1 is a top view of the inside of the speed reducer with an air vent hole according to the first embodiment as viewed from above.
- Fig. 2 is a front view as seen from the direction I I in Fig. 1 with a part of the reducer with the air vent hole in Fig. 1 cut away.
- FIG. 3 is a front view similar to FIG. 2 showing the speed reducer with an air vent hole according to the second embodiment.
- FIG. 4A is a front view similar to FIG. 2 showing the speed reducer with an air vent hole of the embodiment.
- FIG. 4B is a diagram showing the time change of the internal pressure.
- 1 is a reduction gear with air vent hole
- 2 is a reduction gear body
- 3 is an intermediate flange
- 5 is a motor
- 6 is an input gear
- 7 is an input side oil seal
- 8 is a lubricant
- 8 a Is the liquid level or the highest liquid level
- 9 and 9 c are pipes
- 9 a is the inlet 4
- 10 is another space volume
- 1 1 is the cylindrical body
- 1 1 a is the top plane
- lib Bottom plane
- 1 1 c is the circumferential side
- 1 2 is the air vent hole
- 1 3 is the filter
- 2 0 is the casing
- 2 1 is the output shaft
- 2 2 is the crankshaft
- 2 3 is the spur gear
- 2 4 is the external gear
- a gear 25 is an internal gear
- FIG. 1 is an upper view of the inside of the speed reducer with an air vent hole according to the first embodiment as viewed from above.
- FIG. 2 is a front view of the speed reducer with an air vent hole in FIG.
- the speed reducer 1 with the air vent hole includes a speed reducer body 2 having an eccentric oscillating speed reduction gear mechanism, a porter or the like on the speed reducer body 2 and the like.
- An intermediate flange 3 attached by a fixing member 3a; and a motor flange 4 attached to the intermediate flange 3 by a fixing member 4a such as a bolt.
- the motor 5 is fastened to the motor flange 4, and an input gear 6 integrated with a rotary shaft 6a as an input portion is fixed.
- An input-side oil seal 7 is provided between the intermediate flange 3 and the input gear 6.
- the speed reducer body 2 includes a casing 20, an internal gear 25 made up of a plurality of pins (internal teeth), and a number of teeth different from the internal gear 25 at a predetermined pitch corresponding to the internal gear 25, for example.
- the external gear 2 4 meshes with the internal gear 25 and the external gear 24 is eccentrically supported with respect to the central axis of the internal gear 25 via a bearing so as to be capable of revolving motion.
- An output shaft 21 that rotatably supports both ends of the shaft 22 via bearings, and an output-side oil seal 27 that is disposed between the casing 20 and the output shaft 21.
- the casing 20 is fixed to another support member, for example, with a mounting hole 2 O a, so that at least one of the plurality of crankshafts 2 2 has a spur gear 2 3 and an input gear 6 at the end of the shaft.
- the external gear 2 4 revolves by rotating the rotational force of the motor 5 via the internal gear 2 5, for example, the number of teeth of the external gear 2 4 is larger than that of the external gear 2 4.
- the external gear 2 4 rotates corresponding to the difference in the number of teeth per revolution (1).
- the output shaft 2 1 rotates corresponding to the rotation of the external gear 2 4 to generate a deceleration output. It can be taken out.
- the reduction gear body 2 has one internal volume (first space volume) formed by the casing 20, the intermediate flange 3, the output shaft 2 1, and the two input / output oil seals 7 and 7.
- the reduction gear mechanism as described above is configured, and the liquid lubricant 8 is filled in the internal volume part to, for example, about 70 to 90% of the space.
- the intermediate flange 3 is provided with a lubricant supply port 9 a, and a pipe 9 screwed and fixed to the supply port 9 a extends from the supply port 9 a and is connected to the cylindrical body portion 11.
- Another space volume 10 is formed in the circular cylindrical body 1 1, and another space volume 10 (second space volume) is connected to the internal volume in the speed reducer main body 2 via the tube 9. Communicated with.
- the volume of another spatial volume 10 is 10% or more of the internal volume in the reducer body 2.
- a pipe 9b is screwed and fixed to a pipe 9 fixed to the inlet 9a, and the pipe 9b is substantially parallel to the direction C of the rotating shaft 6a in the internal volume portion.
- the cylindrical body portion 11 is formed in a cylindrical shape from a transparent member such as glass or acrylic resin, and an air vent hole 1 2 is formed in the top plane 1 la of the cylindrical body portion 1 1. Filter 1 3 is fitted.
- the pipe 9 connected to the inlet 9a extends slightly in the horizontal direction and then extends in the vertical direction V to connect to the bottom plane 1 1b of the cylindrical part 11 and to the cylindrical part.
- 1 1 is The central axis is arranged so as to substantially coincide with the vertical direction.
- the lead straight position (height: level) of the cylindrical body part 1 1 is the liquid level indicated by the broken line in Fig. 2 with the bottom plane 1 1 b filled in the internal volume part of the reducer body 2 It is determined to be higher than level 8a.
- the internal volume of the reducer body 2 is filled with a maximum of 90% of the lubricant, but the level reaches the liquid level 8a indicated by the broken line in Fig. 2, and the force that achieves the maximum liquid level. Even in this case, there is no problem because it is lower than the bottom plane 1 1 b.
- the lubricant is filled in a space of about 70 to 90% of the internal volume, In the conventional air vent structure, the lubricant is inevitably blown out together with the air blow, but in the first embodiment, the lubricant is received in another space volume 10. Lubrication does not occur because the increase in internal pressure is suppressed. For this reason, it is possible to rotate at high speed.
- the cylindrical body portion 11 forming another space volume portion 10 is made of a transparent member. As a result, it is possible to easily observe the state of the lubricant that has moved into another space volume 10 during operation, so that it is possible to determine the replacement time of the lubricant and to improve the maintainability.
- the filter 13 is provided in the air vent hole 12, it is possible to prevent foreign matter from entering the inside of the speed reducer body 2 through the air vent hole 12 through the tube 9.
- the leakage of the lubricant from the air vent hole 12 can be prevented as described above, so that the allowable pressure resistance of the input side oil seal 7 and the output side oil seal 2 7 is particularly high. do not have to.
- the cylindrical body part 1 1 forming another space volume part 10 in FIGS. 1 and 2 is arranged at another position when the bottom plane 1 1 b reaches a level higher than the maximum liquid level 8 a. Also good. That is, in the speed reducer with an air vent hole according to the second embodiment, as shown in FIG. 3, the lubricant inlet 9 a is provided in the vicinity of the top of the intermediate flange 3 in the vertical direction. c is slightly extended upward and connected to the bottom plane 1 lb of the cylindrical body 11.
- the bottom plane 1 1 b of the cylinder body 1 1 is always higher than the maximum liquid level 8 a in the space volume in the reducer body than in the case of Fig. 2. High level. For this reason, there is no lubricant in the supply inlet 9a and the pipe 9c, and the amount of lubricant coming out from the speed reducer to another space volume 10 becomes smaller than in the case of FIG. This is because the expansion of air is larger than the expansion of the lubricant, and the amount of air expanded from the air volume (or the vicinity of the air layer) in the space volume in the reducer body is another space volume 1 This is because the amount of lubricant pushed out when the air expands is small because it moves to 0.
- FIG. 4A is a diagram showing the change over time of the casing temperature that rises due to heat generation during the operation of the speed reducer with the air vent of this embodiment, and FIG.
- the operating conditions of the speed reducer with the air vent hole of this example were as follows as shown in Fig. 4A.
- the casing temperature becomes The pressure gradually rises, and until 4.5 hours there is an air vent hole, so the internal pressure does not rise from a certain value. 4.5 After 5 hours, the air was released and the internal pressure decreased. During this operation, the lubricant entered another space volume, but the volume was about half. There was no leakage of lubricant from the air vent in another space volume. When the operation was stopped, the temperature gradually decreased and the lubricant almost returned to the reducer body from another space volume.
- the air vent hole 12 may be provided on the circumferential side surface 11c (FIG. 2) of the cylindrical body portion 11 as long as it is vertically above the bottom plane 11b.
- the speed reducer with the air vent hole shown in FIGS. 1 to 3 is used in the posture shown in the figure with respect to the vertical direction, but the present invention is not limited to this, and another posture (speed reducer with respect to the vertical direction).
- the cylindrical body part 1 1 may have a bottom plane 1 lb higher than the maximum liquid level 8 a depending on the posture. What is necessary is just to arrange
- the speed reducer according to the present invention is suitable for applications in which the rotational axis direction of the speed reducer, such as the traveling shaft portion of a traveling robot, the turning shaft portion of an articulated mouth pot, and the table axis movement device of a machine tool, is unchanged. For example, it can be applied to relatively high-speed rotations where, for example, the input rotation speed from the motor to the reduction gear is about 2500 r P m and the output rotation speed of the reduction gear is about 500 rpra.
- the speed reducer with the air vent of the present invention it is ensured that the lubricant filled in the casing of the speed reducer leaks from the air vent hole to the outside without increasing the internal pressure of the speed reducer beyond the allowable pressure resistance of the seal part. Can be prevented.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004215647A JP2006038019A (ja) | 2004-07-23 | 2004-07-23 | 空気抜き孔付き減速機 |
JP2004-215647 | 2004-07-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006009318A1 true WO2006009318A1 (ja) | 2006-01-26 |
Family
ID=35785407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/013887 WO2006009318A1 (ja) | 2004-07-23 | 2005-07-22 | 空気抜き孔付き減速機 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2006038019A (ja) |
TW (1) | TW200613666A (ja) |
WO (1) | WO2006009318A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012161887A (ja) * | 2011-02-08 | 2012-08-30 | Yamaha Motor Co Ltd | ロボット |
CN105650251A (zh) * | 2016-04-08 | 2016-06-08 | 重庆青山工业有限责任公司 | 一种汽车变速器的排气结构 |
CN109424728A (zh) * | 2017-08-18 | 2019-03-05 | 株式会社安川电机 | 机器人以及机器人系统 |
CN110332305A (zh) * | 2019-08-15 | 2019-10-15 | 北京三一智造科技有限公司 | 一种输入壳体、减速器及旋挖钻机 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5045928B2 (ja) * | 2008-01-08 | 2012-10-10 | 株式会社ジェイテクト | プーリユニット |
JP2010078131A (ja) * | 2008-09-24 | 2010-04-08 | Fuji Hensokuki Co Ltd | 駆動装置の減速機に設けた空気抜き構造 |
JP5603623B2 (ja) * | 2010-03-16 | 2014-10-08 | 住友重機械工業株式会社 | 減速装置 |
JP5559632B2 (ja) | 2010-08-05 | 2014-07-23 | 東洋電機製造株式会社 | 電動機用歯車装置 |
DE102011012809A1 (de) * | 2011-03-02 | 2012-09-06 | Dürr Systems GmbH | Robotergetriebe mit einer Druckausgleichseinrichtung |
CN104943633B (zh) * | 2015-06-25 | 2017-09-05 | 安徽江淮汽车集团股份有限公司 | 一种汽车零部件用通气结构 |
TWI830130B (zh) | 2021-02-25 | 2024-01-21 | 日商發那科股份有限公司 | 具備潤滑室之機械 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0874974A (ja) * | 1994-09-07 | 1996-03-19 | Kobe Steel Ltd | 動力伝達装置の潤滑装置並びに連続鋳造設備の鋳片引抜装置における潤滑装置 |
JPH08178026A (ja) * | 1994-09-19 | 1996-07-12 | Eaton Corp | 変速機のガス抜きを行う方法及び装置 |
JPH10169760A (ja) * | 1996-12-10 | 1998-06-26 | Kawasaki Heavy Ind Ltd | パワーディバイダの油漏れ防止構造 |
JPH1182660A (ja) * | 1997-09-09 | 1999-03-26 | Honda Motor Co Ltd | 無段変速機の潤滑構造 |
JP2003172434A (ja) * | 2001-12-04 | 2003-06-20 | Tcm Corp | ギアケースのブリーザ装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60159265U (ja) * | 1984-03-30 | 1985-10-23 | 日野自動車株式会社 | トランスミツシヨンの油量点検カバ− |
JPS63246568A (ja) * | 1987-03-31 | 1988-10-13 | Nissan Motor Co Ltd | 自動変速機のエアブリ−ザ装置 |
JP2002021985A (ja) * | 2000-07-06 | 2002-01-23 | Yanmar Diesel Engine Co Ltd | ガスタービン設備のブリーザ取付構造 |
JP2002156028A (ja) * | 2000-11-17 | 2002-05-31 | Kubota Corp | 作業車 |
-
2004
- 2004-07-23 JP JP2004215647A patent/JP2006038019A/ja active Pending
-
2005
- 2005-07-22 TW TW094124989A patent/TW200613666A/zh unknown
- 2005-07-22 WO PCT/JP2005/013887 patent/WO2006009318A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0874974A (ja) * | 1994-09-07 | 1996-03-19 | Kobe Steel Ltd | 動力伝達装置の潤滑装置並びに連続鋳造設備の鋳片引抜装置における潤滑装置 |
JPH08178026A (ja) * | 1994-09-19 | 1996-07-12 | Eaton Corp | 変速機のガス抜きを行う方法及び装置 |
JPH10169760A (ja) * | 1996-12-10 | 1998-06-26 | Kawasaki Heavy Ind Ltd | パワーディバイダの油漏れ防止構造 |
JPH1182660A (ja) * | 1997-09-09 | 1999-03-26 | Honda Motor Co Ltd | 無段変速機の潤滑構造 |
JP2003172434A (ja) * | 2001-12-04 | 2003-06-20 | Tcm Corp | ギアケースのブリーザ装置 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012161887A (ja) * | 2011-02-08 | 2012-08-30 | Yamaha Motor Co Ltd | ロボット |
CN105650251A (zh) * | 2016-04-08 | 2016-06-08 | 重庆青山工业有限责任公司 | 一种汽车变速器的排气结构 |
CN105650251B (zh) * | 2016-04-08 | 2019-07-23 | 重庆青山工业有限责任公司 | 一种汽车变速器的排气结构 |
CN109424728A (zh) * | 2017-08-18 | 2019-03-05 | 株式会社安川电机 | 机器人以及机器人系统 |
CN110332305A (zh) * | 2019-08-15 | 2019-10-15 | 北京三一智造科技有限公司 | 一种输入壳体、减速器及旋挖钻机 |
Also Published As
Publication number | Publication date |
---|---|
JP2006038019A (ja) | 2006-02-09 |
TW200613666A (en) | 2006-05-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2006009318A1 (ja) | 空気抜き孔付き減速機 | |
JP5683988B2 (ja) | ロボット | |
JP4820713B2 (ja) | 減速機 | |
JP2008223800A (ja) | 波動歯車減速機の潤滑方法および回転テーブル装置 | |
JP6708684B2 (ja) | 駆動モータおよび減速機を備えるロボットの関節部の構造 | |
CN102465998A (zh) | 减速机构及其谐波齿轮减速机 | |
CN105691184A (zh) | 轮毂驱动总成 | |
JP6380436B2 (ja) | ロボットアーム | |
JP5310342B2 (ja) | ロボットの手首装置 | |
JP2018538486A (ja) | 円筒歯車伝動機構 | |
JP2006226499A (ja) | 減速装置及び減速装置の潤滑方法 | |
CN102859236B (zh) | 排气装置和具有这种排气装置的传动装置 | |
JPH0953707A (ja) | 波動歯車装置のグリス供給機構 | |
JP2003181788A (ja) | ロボットの関節部構造 | |
CN103485888A (zh) | 发动机平衡轴机构及发动机总成 | |
JP5391960B2 (ja) | 波動歯車減速装置 | |
CN111232229B (zh) | 交叉双旋翼无人直升机的传动系统箱体及其传动系统 | |
JP2019113099A (ja) | ジャーナル軸受、回転機械、及びジャーナル軸受製造方法 | |
US4936757A (en) | Multi-section vacuum pump | |
JP2018021463A (ja) | 両回転スクロール型圧縮機 | |
CN206409602U (zh) | 无油旋齿式空压机齿轮箱 | |
CN203238464U (zh) | 齿轮结构 | |
JP2018176410A (ja) | ポジショナ | |
JP2016068663A (ja) | 車両駆動装置 | |
CN207315656U (zh) | 一种三腔室凸轮压缩机 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |