WO2013146260A1 - Dispositif réducteur de vitesse pour entrepôt de stockage frigorifique - Google Patents

Dispositif réducteur de vitesse pour entrepôt de stockage frigorifique Download PDF

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Publication number
WO2013146260A1
WO2013146260A1 PCT/JP2013/056975 JP2013056975W WO2013146260A1 WO 2013146260 A1 WO2013146260 A1 WO 2013146260A1 JP 2013056975 W JP2013056975 W JP 2013056975W WO 2013146260 A1 WO2013146260 A1 WO 2013146260A1
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WO
WIPO (PCT)
Prior art keywords
lubricant
speed reducer
temperature
warehouse
viscosity
Prior art date
Application number
PCT/JP2013/056975
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English (en)
Japanese (ja)
Inventor
光則 阪本
哲志 磯崎
Original Assignee
住友重機械工業株式会社
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 住友重機械工業株式会社 filed Critical 住友重機械工業株式会社
Priority to KR1020147020384A priority Critical patent/KR101676429B1/ko
Priority to CN201380006189.9A priority patent/CN104067029B/zh
Publication of WO2013146260A1 publication Critical patent/WO2013146260A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/02—Specified values of viscosity or viscosity index
    • 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0401—Features relating to lubrication or cooling or heating using different fluids, e.g. a traction fluid for traction gearing and a lubricant for bearings or reduction gears
    • 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
    • F16H57/0454—Sealings between different partitions of a gearing or to a reservoir
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/02—Viscosity; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/36—Seal compatibility, e.g. with rubber
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives

Definitions

  • the present invention relates to a reduction gear used in a freezer warehouse.
  • a transport device such as a storage shelf or a transport table that is movably installed inside the freezer warehouse has a gear motor as its drive source, In particular, it is necessary to ensure in some form the good operation of the speed reducer using the lubricant.
  • the speed reducer (or gear motor) is used as a component for driving a transfer device or the like in a refrigerated warehouse, in order to perform a test operation of the transfer device or the like, it is allowed to run at room temperature for a suitable time. It may be operated in a (non-frozen state).
  • Patent Document 1 the first oil seal having a temperature characteristic capable of sealing the rotation shaft of the speed reducer in the refrigeration warehouse, and the low temperature side limit temperature are incorporated inside the speed reducer of the first oil seal, Disclosed is a reduction gear (gear motor) provided with a second oil seal having a temperature characteristic higher than that of the first oil seal and designed to prevent oil leakage during both test operation and operation in a freezer warehouse. Yes.
  • the present invention has been made to solve such problems, and obtains a speed reducer for a refrigerated warehouse that can more effectively prevent oil leakage and extend the life of the speed reducer. That is the issue.
  • the present invention relates to a reduction gear for a freezer warehouse used in a freezer warehouse, wherein the lubricant encapsulated in the reducer has a pour point that is at least 10 ° C. lower than a target freezing temperature in the freezer warehouse, and a freezer
  • the viscosity of the base oil at the maximum temperature of the lubricant during the test operation before the full-scale operation of the warehouse is 15 cSt or more.
  • the “reduction gear” in the above-described configuration of the present invention is used in the form of a “gear motor” integrated with a motor in addition to a single reduction gear, and the reduction gear whose motor shaft also serves as the input shaft of the reduction gear Is also included.
  • a lubricant having a pour point lower than the target refrigeration temperature by 10 ° C. or more is used as the lubricant for this reduction gear.
  • the lubricant has a characteristic that the viscosity of the base oil at the maximum temperature of the lubricant during the test operation is 15 cSt or more.
  • an oil film can be formed well on the tooth surface during a test operation at room temperature, so that damage to the tooth surface of the speed reduction mechanism during the test operation can be minimized, and therefore the tooth surface is damaged. It is possible to enter a cryogenic operation in an actual refrigerated warehouse with a clean lubricant (not mixed with wear powder). Therefore, the original lubrication performance suitable for extremely low temperatures can be exhibited over a long period of time.
  • FIG. 1 is a cross-sectional view of a gear motor provided with a reduction gear for a refrigerated warehouse according to an example of an embodiment of the present invention
  • FIG. 2 is an enlarged cross-sectional view of a main part of the gear motor.
  • the target refrigeration temperature of the refrigeration warehouse (not shown) is ⁇ 25 ° C. in this example.
  • This gear motor 10 for a refrigerated warehouse is obtained by integrating a motor 12 and a speed reducer 14 by fastening a motor casing (motor cover) 12A and a speed reducer casing 14A with bolts 11.
  • the motor 12 includes a fan 13 on the non-load side.
  • the speed reducer 14 includes an input shaft 16 that is also used as a motor shaft of the motor 12 (supported by a bearing 28), a hypoid pinion 18 that is integrally formed with the input shaft 16, a hypoid gear 20 that meshes with the hypoid pinion 18, Is provided.
  • the hypoid gear 20 is incorporated in the intermediate shaft 22, and an intermediate pinion 24 integrally formed with the intermediate shaft 22 meshes with the output gear 26. Then, the rotation of the output gear 26 is output to the outside as the rotation of the output shaft 27.
  • the temperature of the lubricant is approximately 95 even if it is operated for 1 hour or more at room temperature by setting the thickness and size of the speed reducer casing 14A, the capacity of the fan 13, and the like. Characteristics that can be maintained at or below ° C. are obtained. “Normal temperature” means a range of 20 ° C. ⁇ 15 ° C. (5-35 ° C.) (JIS Z 8703).
  • the input shaft 16 of the speed reducer 14 is composed of a cryogenic oil seal 30 composed of silicone rubber, nitrile rubber or the like, and acrylic rubber, nitrile rubber, fluorine rubber or the like. It is sealed by two kinds of oil seals, that is, a normal temperature oil seal 32.
  • the output side of the speed reducer 14 is sealed only by a cryogenic oil seal 36 (made of the same material as the input side) disposed adjacent to the bearing 34 of the output shaft 27. This is because on the output side, the rotational speed is low, and damage due to wear powder hardly causes a problem, so the cost is reduced.
  • a normal temperature oil seal may also be provided in the output shaft (rotary shaft) seal, and in this case, the effect of further extending the life of the oil seal can be obtained.
  • the lubricant is sealed in the space Sp1 in the speed reducer 14 in FIG.
  • its “pour point” is at least 10 ° C. lower than the target refrigeration temperature in the freezer warehouse ( ⁇ 25 ° C. in this embodiment), and in the test operation before the full-scale operation of the freezer warehouse.
  • the viscosity of the base oil at the maximum temperature of the lubricant is 15 cSt or more are used.
  • the “pour point” is an index indicating the fluidity of the lubricant at a low temperature.
  • a pure substance changes from a liquid to a solid at a constant temperature (melting point), but a lubricant that is a multi-component mixture does not show a clear melting point. Therefore, an index called “pour point” is used instead of the melting point. Is used.
  • the pour point of the lubricant is: “The sample taken in the test tube is preheated to 46 ° C. and then cooled by the specified method, and measurement starts at a temperature 10 ° C. higher than the expected pour point.
  • this “pour point” is set to ⁇ 40 ° C. (the target refrigeration temperature is ⁇ 25 ° C., but is 10 ° C. or more and sufficiently lower than that).
  • the target refrigeration temperature of the refrigerated warehouse according to the present embodiment is -25 ° C
  • the pour point of the lubricant is set to -40 ° C in the reducer 14 operating in such a refrigerated warehouse.
  • Lubricants used tend to remain hard in the initial stage of operation. For this reason, formation of a good oil film following subtle vibrations and vibrations of the shaft and tooth surface, and oil seals 30, 32, 36 This is because the familiarity may not be performed well at the beginning of the operation, and this may cause a decrease in the durability of the tooth surface and oil leakage.
  • the maximum temperature of the lubricant during the test operation before the full-scale operation of the freezer warehouse is 95.
  • the lubricant temperature is 95 even when the speed reducer 14 is operated at room temperature for 1 hour or more. Since it has such characteristics that it can be maintained at or below ° C., this temperature of 95 ° C. is regarded as the “maximum temperature of test operation before full-scale operation”. That is, in the present embodiment, the maximum temperature when operating at room temperature for at least 1 hour, that is, the viscosity of the base oil of the lubricant at 95 ° C. is set to be 15 cSt or more. The numerical value of “15 cSt or more” is based on the fact that the inventor has confirmed that a problem may actually occur at “5 to 10 cSt”, for example.
  • Lubricants can be mixed basically with any kinematic viscosity by mixing high and low viscosity oils. Depending on the temperature, the viscosity increases as the temperature decreases, and decreases as the temperature increases. Usually, a lubricant having good characteristics at an extremely low temperature is extremely low in an environment of 95 ° C. However, in the present embodiment, a viscosity of 15 cSt is intentionally provided in this 95 ° C. environment.
  • poly-alpha-olefin synthetic oil
  • the base oil By including, for example, lithium or the like in the thickener, the viscosity at 95 ° C. (15 cSt) can be realized.
  • This lubricant has good viscosity-temperature characteristics (high flowability at low temperature and viscosity does not decrease much even at high temperature), excellent oxidation stability and lubricity, and relatively good resistance to high temperatures. And a lubricant having characteristics consistent with the gist of the present invention.
  • the seal lubricant enclosed in the oil seals 30, 32, 36 of the speed reducer 14 may be basically the same as the lubricant enclosed in the speed reducer 14, but in this embodiment, the seal lubricant is used.
  • the pour point is the same as the lubricant enclosed in the speed reducer 14, but the consistency is smaller (harder) than the lubricant enclosed in the speed reducer 14, while the viscosity is A lubricant that is lower than the lubricant enclosed in 14 is used. That is, to say roughly, “a lubricant that is harder but more sloppy than the lubricant encapsulated in the speed reducer 14.
  • the speed reducer 14 (or the gear motor 10) is used as a component for driving the transfer device or the like in the refrigerated warehouse, and is therefore operated for a suitable time for a test operation of the transfer device or the like.
  • the This test operation is normally performed at room temperature (non-frozen state). In some cases, the temperature is gradually lowered from the normal temperature to the target refrigeration temperature during the test operation. Since the temperature of the freezer warehouse is lowered at a very low speed in order to prevent dew condensation (it is said to be 1 ° C per day when the temperature is below 0 ° C), as a result, lubrication of the decelerator 14 for the freezer warehouse The agent may be run for a long time at a temperature significantly higher than the target refrigeration temperature.
  • the lubricant having the optimum characteristics at the cryogenic temperature in the freezer warehouse is too low in viscosity during such a test operation, which may cause early damage due to the difficulty of forming an oil film on the tooth surface, or It is thought that the oil seal was damaged due to an increase in wear powder accompanying the tooth surface damage. In other words, the tooth surface and the oil seal have already been considerably damaged at the stage of actual operation in the freezing environment.
  • the speed reduction mechanism of the speed reducer 14 is composed of orthogonal speed reduction mechanisms such as a hypoid pinion 18 and a hypoid gear 20 that transmit power by meshing with slipping, the problem occurs. (It is understood that a worm reduction mechanism that transmits power by meshing with slipping is also in the same situation).
  • the lubricant enclosed in the speed reducer 14 reaches the maximum temperature during the test operation before the full speed operation of the speed reducer 14 (when it is continuously operated for 1 hour or more at room temperature).
  • the viscosity of 15 cSt is ensured even at 95 ° C., which is a low temperature).
  • the “temperature when operating at room temperature for at least 1 hour” can be regarded as “a temperature that does not increase any further even if continuous operation is performed”. Therefore, the setting of the present embodiment is basically a setting in which a sufficient oil film is always formed on the tooth surface and damage is prevented even when the test operation at room temperature is performed almost without limitation. Therefore, generation
  • the oil seals 30 and 32 are also provided with the oil seal 32 for room temperature in addition to the oil seal 30 for cryogenic temperature.
  • the oil seal 32 for room temperature since this can be satisfactorily captured by the oil seal 32 for room temperature, oil leakage during the test operation can be prevented well, and the wear powder also sneaks into the sliding portion of the oil seal 30 for cryogenic temperature.
  • the sealing function can be maintained satisfactorily for a long time even during operation at the freezing temperature.
  • the sealing lubricant enclosed in the oil seals 30, 32, 36 of the speed reducer 14 has the same pour point as the lubricant enclosed in the speed reducer 14, but the consistency is the same.
  • the lubricant is smaller (harder) than the lubricant enclosed in the inside, and the viscosity is lower than that of the lubricant enclosed in the speed reducer 14 (the same as the lubricant in the speed reducer 14).
  • assembly of the oil seal is easier and leakage is less likely to occur, and the efficiency can be further improved.
  • the pour point of the lubricant is set to a value sufficiently lower than the target refrigeration temperature ( ⁇ 40 ° C. or lower).
  • the pour point is not necessarily lowered so far. It does not have to be.
  • the “maximum temperature of the lubricant during the test operation before the full-scale operation of the refrigeration warehouse” is used, and the “temperature when operated at room temperature for at least 1 hour (95 ° C.)” is virtually satisfied.
  • the test operation time is relatively limited (although 95 ° C. is almost the maximum temperature of the lubricant if a general reduction gear is normally operated).
  • the maximum temperature corresponding to the actual test operation may be used as the “maximum temperature of the lubricant during the test operation before the full-scale operation of the freezer warehouse”.
  • the speed reduction mechanism of the speed reducer is not limited to the orthogonal speed reduction mechanism having slip.
  • it may be a bevel orthogonal speed reduction mechanism with little slippage or a parallel axis speed reduction mechanism.
  • a planetary gear reduction mechanism may be used. In either case, a corresponding effect can be obtained.
  • the seal lubricant for normal temperature and extremely low temperature
  • the pour point is the same as the lubricant enclosed in the speed reducer.
  • the degree is smaller (harder) than the grease lubricant enclosed in the reduction gear, and the viscosity is lower than that of the grease lubricant enclosed in the reduction gear.
  • the oil seal and the seal lubricant are not particularly required to adopt the above configuration. Rather, according to the present invention, the burden of the oil seal is reduced, so that the structure of the oil seal may be further simplified.
  • the specific configuration (composition) of the lubricant is also qualitatively described as “a test where the pour point is at least 10 ° C. lower than the target refrigeration temperature in the refrigeration warehouse and the refrigeration warehouse is in full operation. If the characteristic that the viscosity of the base oil at the maximum temperature of the lubricant during operation is 15 cSt or more is obtained, there is no particular limitation.
  • the present invention can be used for a reduction gear used in a freezer warehouse.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • General Details Of Gearings (AREA)
  • Sealing Of Bearings (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

L'invention concerne un dispositif réducteur de vitesse (14) à utiliser dans un entrepôt de stockage frigorifique, le point de fluage d'un agent lubrifiant scellé dans le dispositif réducteur de vitesse (14) étant d'au moins 10° inférieur à la température de refroidissement cible dans l'entrepôt de stockage frigorifique, et la viscosité de l'huile de base, pour la température la plus élevée de l'agent de lubrification au moment d'un essai, avant l'utilisation effective de l'entrepôt de stockage frigorifique, étant de 15 cSt ou plus. Il est donc possible de proposer un dispositif réducteur de vitesse pour un entrepôt de stockage frigorifique permettant d'éviter plus efficacement les fuites d'huile, et d'augmenter la durée de vie utile du dispositif réducteur de vitesse.
PCT/JP2013/056975 2012-03-30 2013-03-13 Dispositif réducteur de vitesse pour entrepôt de stockage frigorifique WO2013146260A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020147020384A KR101676429B1 (ko) 2012-03-30 2013-03-13 냉동창고용의 감속기
CN201380006189.9A CN104067029B (zh) 2012-03-30 2013-03-13 冷库用减速器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012082350A JP5731435B2 (ja) 2012-03-30 2012-03-30 冷凍倉庫用の減速機
JP2012-082350 2012-03-30

Publications (1)

Publication Number Publication Date
WO2013146260A1 true WO2013146260A1 (fr) 2013-10-03

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PCT/JP2013/056975 WO2013146260A1 (fr) 2012-03-30 2013-03-13 Dispositif réducteur de vitesse pour entrepôt de stockage frigorifique

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JP (1) JP5731435B2 (fr)
KR (1) KR101676429B1 (fr)
CN (1) CN104067029B (fr)
WO (1) WO2013146260A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022242900A1 (fr) 2021-05-18 2022-11-24 Sew-Eurodrive Gmbh & Co. Kg Motoréducteur comportant un moteur électrique entraînant une transmission

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JP2005300085A (ja) * 2004-04-15 2005-10-27 Ishikawajima Harima Heavy Ind Co Ltd 保温装置
JP2007127261A (ja) * 2005-10-03 2007-05-24 Ntn Corp 歯車および歯車駆動装置
JP2011130650A (ja) * 2009-12-21 2011-06-30 Sumitomo Heavy Ind Ltd 冷凍庫用のギヤモータ
JP2011130590A (ja) * 2009-12-17 2011-06-30 Sumitomo Heavy Ind Ltd 冷凍庫用ギヤモータ
JP2011522929A (ja) * 2008-06-04 2011-08-04 シェブロン ユー．エス．エー． インコーポレイテッド ギアオイル組成物、その製造方法及び使用方法

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JP2005281511A (ja) * 2004-03-30 2005-10-13 Nsk Ltd グリース組成物およびそれを封入した直動装置
JP2006266428A (ja) * 2005-03-24 2006-10-05 Sumitomo Heavy Ind Ltd 歯車装置
US20080248983A1 (en) * 2006-07-21 2008-10-09 Exxonmobil Research And Engineering Company Method for lubricating heavy duty geared apparatus
EP2135928B1 (fr) * 2007-03-30 2013-08-21 Nippon Oil Corporation Huile de base lubrifiante, son procédé de fabrication et composition d'huile lubrifiante
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Publication number Priority date Publication date Assignee Title
JP2005154760A (ja) * 2003-11-04 2005-06-16 Idemitsu Kosan Co Ltd 潤滑油基油及びその製造方法、並びに該基油を含有する潤滑油組成物
JP2005300085A (ja) * 2004-04-15 2005-10-27 Ishikawajima Harima Heavy Ind Co Ltd 保温装置
JP2007127261A (ja) * 2005-10-03 2007-05-24 Ntn Corp 歯車および歯車駆動装置
JP2011522929A (ja) * 2008-06-04 2011-08-04 シェブロン ユー．エス．エー． インコーポレイテッド ギアオイル組成物、その製造方法及び使用方法
JP2011130590A (ja) * 2009-12-17 2011-06-30 Sumitomo Heavy Ind Ltd 冷凍庫用ギヤモータ
JP2011130650A (ja) * 2009-12-21 2011-06-30 Sumitomo Heavy Ind Ltd 冷凍庫用のギヤモータ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022242900A1 (fr) 2021-05-18 2022-11-24 Sew-Eurodrive Gmbh & Co. Kg Motoréducteur comportant un moteur électrique entraînant une transmission

Also Published As

Publication number Publication date
KR20140115325A (ko) 2014-09-30
CN104067029A (zh) 2014-09-24
KR101676429B1 (ko) 2016-11-15
CN104067029B (zh) 2017-03-29
JP5731435B2 (ja) 2015-06-10
JP2013210084A (ja) 2013-10-10

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