WO2016199331A1 - 鉄道車両用歯車装置 - Google Patents

鉄道車両用歯車装置 Download PDF

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Publication number
WO2016199331A1
WO2016199331A1 PCT/JP2016/001707 JP2016001707W WO2016199331A1 WO 2016199331 A1 WO2016199331 A1 WO 2016199331A1 JP 2016001707 W JP2016001707 W JP 2016001707W WO 2016199331 A1 WO2016199331 A1 WO 2016199331A1
Authority
WO
WIPO (PCT)
Prior art keywords
breather
passage
gear box
gear
mounting seat
Prior art date
Application number
PCT/JP2016/001707
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
大悟 白土
Original Assignee
東洋電機製造株式会社
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 東洋電機製造株式会社 filed Critical 東洋電機製造株式会社
Priority to CN201680023742.3A priority Critical patent/CN107709839B/zh
Publication of WO2016199331A1 publication Critical patent/WO2016199331A1/ja

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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 gear device for a railway vehicle that includes a gear box that houses a gear that is connected to an axle of the railway vehicle, and a breather that is attached to an upper surface of a mounting seat provided on the upper portion of the gear box.
  • the breather includes a breather body having a breather passage that communicates with a passage formed in the gear box and ventilates the inside and outside of the gear box. Further, it has been conventionally known that a breather body is provided with a valve mechanism that cuts off the communication between the breather passage and the passage when the external air pressure is relatively lower than the internal pressure of the gear box and exceeds an allowable range. (For example, refer to Patent Document 2).
  • the internal pressure of the gear box may be relatively lowered from the external pressure, and in this case, a suction force directed toward the inside of the gear box acts on the breather passage.
  • a suction force toward the gear box acts, not only the outside air but also the weather conditions (snowfall and rain) Depending on the time, rainwater etc. is also sucked.
  • the gearbox is hot during railway vehicle operation, if snow adheres to the breather or mounting seat, it may melt and remain as water droplets on the top surface of the mounting seat.
  • the present invention has a simple structure that allows water into the gear box even when the internal pressure of the gear box is relatively lower than the external air pressure and a suction force toward the gear box acts on the breather passage.
  • An object of the present invention is to provide a railway vehicle gear device that can suppress the sucking of molecules as much as possible.
  • a railway vehicle gear comprising: a gear box that houses a gear coupled to an axle of a railway vehicle; and a breather that is attached to an upper surface of a mounting seat provided at an upper portion of the gear box.
  • the apparatus has a breather body on which the breather is seated on the upper surface of the mounting seat, and a breather passage is formed in the breather body to communicate with a passage formed in the gear box so as to vent the inside and outside of the gear box. And a first passage portion that rises upward and communicates with the vent hole established in the first passage portion, and the first passage portion is filled with a filter.
  • the present invention when the internal pressure of the gear box is relatively lower than the external pressure and a suction force is applied to the breather passage toward the inside of the gear box, outside air or water droplets in the vicinity of the ventilation opening is generated from the vent at the outer end of the breather passage.
  • the first passage leading to the vent rises upward and the filter is filled in the first passage, the sucked water molecules are absorbed by the filter.
  • water molecules absorbed by the filter are not lifted in the first passage portion against gravity and flow into the gear box.
  • the inhalation of water molecules into the gear box can be suppressed as much as possible, and the occurrence of problems such as deterioration of the lubricating performance of the lubricating oil stored in the gear box can be prevented.
  • the vent hole is opened downward from the first passage portion. According to this, when the absorbed water molecule falls by its own weight, the water molecule is discharged out of the breather body, which is advantageous.
  • the breather passage includes a first passage portion, a hollow portion that is recessed on the upper surface of the breather body and communicates with the first passage portion, a hollow portion that extends in the vertical direction, and the gear box. It is preferable that a lid that has a second passage portion that communicates with the passage and covers the hollow portion from above is attached.
  • the front view which shows the gear box of the gear apparatus for railway vehicles of this invention is an enlarged view showing a portion of a gear box to which a breather is attached, (b) is a sectional view taken along line II (b) -II (b) in FIG. 2 (a), (c) ) Is a plan view of the breather shown with the cover body removed. Sectional drawing of the breather which concerns on a modification. Sectional drawing of the breather which concerns on another modification. Sectional drawing of the breather which concerns on another modification.
  • reference numeral 1 denotes a gear box of a railway vehicle gear device.
  • the gear box 1 houses a small gear fixed to an input shaft and a large gear 11 fixed to an axle connected to a driving source such as a motor that meshes with each other.
  • the lower part is immersed in the lubricating oil 12.
  • a mounting seat 13 is integrally provided at a predetermined position above the gear box 1 so as to protrude upward.
  • a passage 15 is formed in the upper wall of the gear box 1.
  • the passage 15 extends from the inner space 14 in the left-right direction, rises upward in the mounting seat 13, and opens on the upper surface of the mounting seat 13.
  • a breather Bz is provided on the upper surface 13 a of the mounting seat 13 via a sealing material 16.
  • the form of the breather Bz will be described.
  • the breather Bz is provided at the outer end of the passage 15 and the rectangular breather body 2 having a base plate portion 2a seated on the upper surface 13a of the mounting seat 13.
  • a valve mechanism 3 is provided that shuts off the communication between the passage 15 and the breather passage 23 when the atmospheric pressure is relatively lower than the internal pressure of the gear box 1 (the pressure of the internal space 14).
  • the upper surface of the breather body 2 is provided with a recessed portion 21, and vent holes 22 are formed on the respective side surfaces so as to be located at a predetermined height from the upper surface 13 a.
  • a first passage portion 23 a is formed which extends in the left-right direction from the respective vent holes 22 and then rises upward to communicate with the recess portion 21.
  • a second passage portion 23b that extends in the vertical direction on the inside and communicates the hollow portion 21 and the passage 15 is formed, and the first passage portion 23a and the second passage portion 23b constitute a breather passage 23.
  • the hollow portion 21 is covered with a lid from above and its internal space is kept airtight.
  • the second passage portion 23b is filled with a filter F1 that mainly serves to remove the mist component of the lubricating oil 12.
  • the filter F1 can be appropriately selected from known materials such as cloth and porous synthetic resin.
  • the valve mechanism 3 includes a valve body 31 including a shaft portion 31 a inserted with a gap between the passage 15 and a flange portion 31 b that can be seated on the upper surface 13 a of the mounting seat 13.
  • a plurality of ventilation grooves 31c extending in the radial direction from the shaft portion 31a are formed on the lower surface of the flange portion 31b.
  • the lower surface of the flange portion 31b is seated on the upper surface 13a of the mounting seat 13, and a gap 24 between the upper surface of the flange portion 31b and the lower surface of the breather body 2 is formed.
  • the passage 15 and the second passage portion 23b of the breather passage 23 communicate with each other (the inside and outside of the gear box 1 are vented).
  • a suction force toward the outside of the gear box 1 acts on the passage 15 and the breather passage 23.
  • an upward force exceeding its own weight acts on the valve body 31, the valve body 31 is lifted.
  • the rotation of the large gear 11 in the gear box 1 may cause the pressure in the internal space 14 of the gear box 1 to be relatively lower than the external air pressure.
  • the passage 15 and the breather passage 23 may be reduced.
  • a suction force toward the internal space 14 of the gear box 1 acts on the gear box 1.
  • the lubricating oil 12 is emulsified, and as a result, the lubricating performance of the lubricating oil 12 deteriorates. For this reason, it is necessary to comprise so that inhalation of the water molecule in the gear box 1 can be suppressed as much as possible.
  • a cover body 4 that covers the breather body 2 from above and around is provided.
  • the cover body 4 includes a flat plate portion 41 that serves as a lid that covers the hollow portion 21 from above, and a cylindrical portion 42 that is suspended from the lower surface of the flat plate portion 41, and the breather main body via the flat plate portion 41. 2 is screwed to the upper surface.
  • the lower end of the cylindrical portion 42 extends downward beyond the upper surface 13 a of the mounting seat 13 so as to define a ventilation gap 43 around the mounting seat 13.
  • a space 44 wider than the ventilation gap 43 is formed inside the cover body 4 positioned above the mounting seat 13, and communicates with the vent 22 at the outer end of the breather passage 23 narrower than the space 44 via the space 44. is doing.
  • each first passage portion 23a that rises upward is filled with another filter F2 that mainly serves to remove water molecules.
  • the other filter F2 it can select suitably from well-known things, such as the product made from a water-absorbing cloth, and the product made from a porous synthetic resin, You may use the same thing or a different material from the filter F1.
  • path part 23a will not be restrict
  • the configuration is such that the vent hole 22 narrower than the space 44 communicates with the vent hole 22 narrower than the space 44 through the space 44 wider than the vent gap 43, so that the air can be vented when the pressure in the internal space 14 of the gear box 1 is relatively lower than the external pressure.
  • the suction force generated in the gap 43 is weaker than that acting on the vent 22, and even if water molecules such as outside air and rainwater are sucked from the vent gap 43, the vent gap 43 enters the space 44.
  • the speed is reached, the speed is suddenly reduced, so that the amount of water molecules reaching the vent 22 at the outer end of the breather passage 23 is reduced.
  • each first passage portion 23a is filled with another filter F2
  • water molecules are removed (absorbed) by the filter F2 even if water molecules are sucked from the vent hole 22.
  • water molecules absorbed by the filter F2 are not lifted in the first passage portion 23a against the gravity and reach the hollow portion 21.
  • the water molecules (water droplets) are only dropped by their own weight, so that the water molecules are not sucked into the gear box 1.
  • the provision of the cover body 4 and the provision of the filter F2 in the first passage 23a together suppress the suction of water molecules into the gear box 1 as much as possible. Therefore, it is possible to prevent the occurrence of problems such as deterioration of the lubricating performance of the lubricating oil 12.
  • the cover body which covers the hollow part 21 is shared by the cover body 4, it can be made a simple structure with few components.
  • the cover body 4 configured by the flat plate portion 41 serving as a lid body covering the hollow portion 21 from above and the cylindrical portion 42 suspended from the lower surface of the flat plate portion 41 is provided.
  • the cover body 4 can be omitted and only the lid body can be attached.
  • path 23 outer end was opened in each side surface of the breather main body 2, ie, the air vent 22 was provided so that it might open in the left-right direction along the upper surface 13a of the attachment seat 13.
  • an annular recess 211 that is recessed inward in the radial direction is formed in the lower part of the breather body 20, and the opening is directed toward the annular recess 211.
  • the vent 212 at the outer end of the breather passage 23 may be formed so as to open downward. According to this, when the water molecule absorbed by the other filter F2 falls by its own weight, the water molecule may be discharged out of the breather body 2.
  • the lower end of the cylindrical part 42 of the cover body 4 extended to the downward direction exceeding the upper surface 13a of the attachment seat 13, it demonstrated to an example, but it is not limited to this.
  • the height of the breather body 220 can be increased as shown in FIG. 4, in other words, the upper surface of the attachment seat 13.
  • the lower end 401 of the cover body 40 extends downward beyond the vent hole 221 to define a ventilation gap 402 around the breather main body 220.
  • a space 403 wider than the ventilation gap 402 is formed inside the cover body 40 located between the lower end 401 of the cover body 40 and the vent hole 221.
  • a tray part 430 is provided around the breather main body 230 so as to face the cylindrical part 420 of the cover body 400 and with a space in the vertical direction, and between the cylindrical part 420 and the tray part 430.
  • the air is communicated with the outside air through a ventilation gap 440 therebetween.
PCT/JP2016/001707 2015-06-09 2016-03-24 鉄道車両用歯車装置 WO2016199331A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201680023742.3A CN107709839B (zh) 2015-06-09 2016-03-24 铁路车辆用齿轮装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-116462 2015-06-09
JP2015116462A JP2017002973A (ja) 2015-06-09 2015-06-09 鉄道車両用歯車装置

Publications (1)

Publication Number Publication Date
WO2016199331A1 true WO2016199331A1 (ja) 2016-12-15

Family

ID=57503882

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/001707 WO2016199331A1 (ja) 2015-06-09 2016-03-24 鉄道車両用歯車装置

Country Status (3)

Country Link
JP (1) JP2017002973A (zh)
CN (1) CN107709839B (zh)
WO (1) WO2016199331A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137876U (zh) * 1981-02-24 1982-08-28
JP2012036941A (ja) * 2010-08-05 2012-02-23 Toyo Electric Mfg Co Ltd 電動機用歯車装置
CN202560998U (zh) * 2012-04-28 2012-11-28 重庆齿轮箱有限责任公司 一种侧装通气帽
JP2013113384A (ja) * 2011-11-29 2013-06-10 Iseki & Co Ltd トラクタ
CN103968049A (zh) * 2014-04-25 2014-08-06 中煤平朔集团有限公司 一种减速机用的排气回油杯装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040040859A (ko) * 2002-11-08 2004-05-13 현대자동차주식회사 수동변속기의 에어브리더
CN2921464Y (zh) * 2006-05-26 2007-07-11 重庆长安汽车股份有限公司 汽车变速器的排气塞
WO2011058571A1 (en) * 2009-11-12 2011-05-19 Arun Kumar Sinha Air breather assembly with single vent and with single / twin ball valves
CN101984274B (zh) * 2010-09-29 2012-10-10 中国铝业股份有限公司 一种迷宫式透气孔盖
CN202032068U (zh) * 2011-04-29 2011-11-09 长城汽车股份有限公司 汽车用新型通气塞
CN102777576B (zh) * 2011-05-11 2015-01-21 中国铁路总公司 带浮动式通气装置的齿轮箱及其使用方法
CN202140544U (zh) * 2011-07-21 2012-02-08 李金东 车用减速或变速箱用回流式通气帽
CN203098802U (zh) * 2013-01-31 2013-07-31 浙江吉利汽车研究院有限公司杭州分公司 一种汽车变速器的通气结构
JP2014152911A (ja) * 2013-02-13 2014-08-25 Tokai Rika Co Ltd 通気構造
JP6049592B2 (ja) * 2013-11-22 2016-12-21 株式会社荏原製作所 空気抜き装置、軸受装置
CN203926723U (zh) * 2014-06-21 2014-11-05 宿州市祁南工贸有限责任公司 一种闭式齿轮箱通气罩油尺装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137876U (zh) * 1981-02-24 1982-08-28
JP2012036941A (ja) * 2010-08-05 2012-02-23 Toyo Electric Mfg Co Ltd 電動機用歯車装置
JP2013113384A (ja) * 2011-11-29 2013-06-10 Iseki & Co Ltd トラクタ
CN202560998U (zh) * 2012-04-28 2012-11-28 重庆齿轮箱有限责任公司 一种侧装通气帽
CN103968049A (zh) * 2014-04-25 2014-08-06 中煤平朔集团有限公司 一种减速机用的排气回油杯装置

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CN107709839A (zh) 2018-02-16
CN107709839B (zh) 2020-06-23
JP2017002973A (ja) 2017-01-05

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