WO2006030855A1 - 車両用軸継手 - Google Patents
車両用軸継手 Download PDFInfo
- Publication number
- WO2006030855A1 WO2006030855A1 PCT/JP2005/017036 JP2005017036W WO2006030855A1 WO 2006030855 A1 WO2006030855 A1 WO 2006030855A1 JP 2005017036 W JP2005017036 W JP 2005017036W WO 2006030855 A1 WO2006030855 A1 WO 2006030855A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- joint
- vehicle
- shaft
- inner ring
- outer ring
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D3/226—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a cylinder co-axial with the respective coupling part
- F16D3/227—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D2003/22326—Attachments to the outer joint member, i.e. attachments to the exterior of the outer joint member or to the shaft of the outer joint member
Definitions
- the present invention relates to a vehicle shaft joint used for connecting an output shaft of a drive motor and a speed reducer in a motor-driven vehicle, and can be used for IJ in a railway vehicle, a construction vehicle, an electric vehicle, and the like. Monkey.
- gear couplings are used to connect the output shaft of a drive motor and the input shaft of a reduction gear in a railway vehicle (see Japanese Patent Laid-Open No. 10-89371).
- FIG. 10 shows a drive device for a railway vehicle.
- the drive device is a device that transmits the torque of the motor 2 loaded on the bogie frame (not shown) to the driving wheel 3 and includes the gear coupling 1 and the speed reducer 5.
- the reduction gear 5 includes a large gear 6 and a small gear 7.
- the large gear 6 is fixed to a driving wheel shaft 4 having a driving wheel 3 fixed at both ends.
- the support shaft of the small gear 7 that meshes with the large gear 6 becomes the input shaft of the speed reducer 5, and is connected to the output shaft of the motor 2 by the shaft coupling 1.
- the gear coupling 1 is provided with an external gear 8 at the shaft end of the output shaft of the motor 2 and an external gear 9 at the shaft end of the small gear 7 of the speed reducer 5.
- the left and right outer cylinders 10, 11 with internal gears meshing with the external gears 8, 9 are fastened with bolts 12, and the disc-shaped dust cover is perforated on the outer end faces of the left and right outer cylinders 10, 11.
- the gear coupling 1 is required to have angular freedom even when there is a misalignment of several millimeters or more between the axis of the output shaft of the motor 2 and the input shaft of the speed reducer 5. For this reason, the angular freedom is enhanced by applying large crowning to the teeth of the external gears 8 and 9. Also, the meshing between external gears 8, 9 and outer cylinders 10, 11 Or has a slight gap.
- Patent Document 1 Japanese Utility Model No. 07-047619
- Patent Document 2 JP-A-10-089371
- the present invention provides, for example, a cross group, in which a torque transmission member can roll and move when an angle is imparted by a backlash in a rotational direction as a joint for connecting a motor and a speed reducer to further improve quietness of a railway vehicle or the like. It uses a constant velocity joint of the type.
- the output shaft of the motor and the input shaft of the reduction gear are connected by a sliding constant velocity joint having a torque transmission ball. It is characterized by that.
- Examples of the sliding constant velocity joint having a torque transmission ball include a cross group joint and a double offset joint.
- the cross group joint has an inner ring formed on the outer peripheral surface with a track that forms an angle with respect to the axis, and a track that forms an angle with the axis in the direction opposite to the track groove of the inner ring.
- the torque is interposed between the outer ring, the torque transmitting ball incorporated at a position where the pair of the inner ring track and the outer ring track intersect, and the outer ring surface of the inner ring and the inner ring surface of the outer ring.
- a cage for holding a transmission ball is interposed between the outer ring, the torque transmitting ball incorporated at a position where the pair of the inner ring track and the outer ring track intersect, and the outer ring surface of the inner ring and the inner ring surface of the outer ring.
- the track crossing angle of the cross group joint is preferably in the range of 3 ° to 16 °.
- the number of torque transmission balls in the cross group joint is preferably in the range of 10 to 18.
- an insulating plate When applied to a railway vehicle, an insulating plate may be interposed between the outer ring of one cross group joint and the outer ring of the other cross group joint.
- a rattling noise and rubbing noise found in a conventional gear coupling can be obtained by adopting a ball-type constant velocity joint without backlash as a shaft coupling that connects the motor and the speed reducer. The vibration noise of the entire vehicle is reduced.
- FIG. 1 is a longitudinal sectional view of a shaft coupling showing an embodiment of the present invention.
- FIG. 2 is a view taken along II II in FIG.
- FIG. 3 is a perspective view in which a part of the shaft coupling of FIG. 1 is cut.
- FIG. 4 is a schematic diagram of the inner and outer ring tracks and cage pockets.
- FIG. 5A is an enlarged view of the main part of FIG. 1, showing a slide-in time.
- FIG. 5B is an enlarged view of the main part of FIG. 1, showing a slide-out time.
- FIG. 6 is a longitudinal sectional view of a shaft coupling showing another embodiment.
- FIG. 7A is an enlarged view of the main part of FIG. 6, showing a slide-in time.
- FIG. 7B is an enlarged view of the main part of FIG. 6, showing a slide-out time.
- FIG. 8 is a longitudinal sectional view of a shaft coupling showing another embodiment.
- FIG. 9 is a schematic view of a drive unit of an electric vehicle showing another embodiment.
- FIG. 10 is a longitudinal sectional view of a driving device in a railway vehicle showing a conventional technique.
- FIG. 11 is a longitudinal sectional view of the shaft coupling in FIG.
- FIG. 1 is a longitudinal sectional view
- FIG. 2 is a view taken along the line II-II in FIG. 1
- FIG. 3 is a perspective view.
- Fig. 3 shows a state where a partial cut force, a partition plate, bolts and nuts, a sealing device and the like are removed.
- a cross group joint is used. That is, this shaft coupling is composed of a pair of cross group joints 16, and each cross group joint 16 has an inner ring 20, an outer ring 30, a ball 40 and a cage 50 as main components.
- the inner ring 20 has a plurality of tracks 22 on the outer peripheral surface and a tapered hole 26 in the center.
- the inner ring 20 is fitted with a tapered shaft formed on the output shaft of the motor or the support shaft of the small gear through the tapered hole 26 so that torque can be transmitted by a key.
- the end of the taper shaft has a male thread and is fastened with a nut.
- the inner ring 20 has a fitting length necessary for the connection between the existing motor and the speed reducer shaft, and can be separated from the cage 50 in the axial direction in consideration of the ease of incorporation. That is, the maximum outer diameter of the inner ring 20 is smaller than the minimum inner diameter of the cage 50.
- Circlips 24 are attached to both sides of the track 22 of the inner ring 20. The circlip 24 is assembled after the cage 50, inner ring 20 and ball 40 (cassette) are assembled with the outer ring 30.
- the circlip 24 may be attached to the outer ring 30.
- the cross group joint has six torque transmission balls and has a spline hole in the inner ring, and it is adopted as a pair of universal shaft joints fitted to this on the propeller shaft and drive shaft of an automobile.
- the shaft diameter is considerably larger than that of a spline shaft, and a cross used for a propeller shaft or drive shaft of an automobile.
- the inner ring cannot be directly attached to the motor shaft or reduction gear shaft.
- the pitch circle diameter of the ball 40 is increased and the number of balls is increased, which corresponds to an external gear of the gear coupling.
- the inner ring 20 is provided with a tapered groove 26 with a key groove. Mochi Of course, when there is no such restriction, normal spline fitting may be employed.
- the outer ring 30 is located on the outer periphery of the inner ring 20, and the same number of tracks 32 as the tracks 22 of the inner ring 20 are formed on the inner peripheral surface. As shown in FIG. 4, the track 22 of the inner ring 20 and the track 32 of the outer ring 30 are angled in opposite directions with respect to the axis. The angle formed by the tracks 22 and 32 with respect to the axis (hereinafter referred to as the track crossing angle) is indicated by the symbol ⁇ in FIG.
- a ball 40 is incorporated at the intersection of the track 22 of the inner ring 20 and the track 32 of the outer ring 30 that make a pair.
- a cage 50 is interposed between the outer peripheral surface of the inner ring 20 and the inner peripheral surface of the outer ring 30. The cage 50 has pockets 52 for holding the balls 40 at equally spaced positions in the circumferential direction.
- the Bonole number depends on the balance between the motor output and the load capacity of the cross group joint 16 and the size of the mounting shaft.
- the number of balls is 10 °
- the number of balls is preferably 10 to 18 and the track crossing angle a is preferably in the range of 3 to 16 °.
- the interior space of the shaft coupling is filled with a lubricant.
- the lubricant may be gear oil, as well as grease, as in the case of automotive propeller shafts and drive shafts.
- the flange 34 is fastened with bolts and nuts 74 in a state in which the end faces of the pair of outer rings 30 are in contact with each other.
- a partition plate 70 is sandwiched between the end faces of the outer ring 30. The partition plate 70 divides the internal space of the shaft coupling at the center, and plays a role of minimizing grease leakage when the pair of cross group joints are disassembled individually.
- Reference numeral 72 denotes an O-ring.
- a sealing device 60 is attached to the outer end of the cross group joint 16.
- the sealing device 60 is composed of a boot 62 and a boot adapter 68 !.
- the boot adapter 68 is made of metal, is generally cylindrical, and has a flange 69 at one end.
- the boot adapter 68 is fixed to the outer ring 30 by applying the flange 69 to the outer end face of the outer ring 30 through the rubber packing 63 and screwing the bolt 38 into the screw hole 36 through the washer. It is.
- the boot 62 is made of a flexible material such as rubber and resin, and has a small end portion 64 and a large end portion 66, and is shaped like a V-shaped cross-section in the middle.
- the large end 66 of the boot 62 holds the end of the boot adapter 68 by force.
- the small end portion 6 4 of the boot 62 is fitted into the boot groove 28 formed on the outer peripheral surface of the end portion of the inner ring 20, and the upper force is also applied to the boot band 6 Tightened with 5.
- FIG. 5A shows slide-in, that is, the state in which the inner ring 20 has moved relative to the right side of FIG.
- FIG. 5B shows a slide-out state, that is, a state in which the inner ring 20 is relatively moved from the state of FIG. 1 to the left side of the same figure.
- the rolling range of the ball 40 is restricted by the circlip 24, and as a result, the amount of axial displacement (plunging) is restricted.
- 5A and 5B illustrate the case where this is 7 mm.
- the embodiment shown in FIG. 6 employs a spacer 76 and a retaining ring 78 having an irregular cross-section instead of the circular cross-section 26 in the embodiment of FIG. .
- the function of the spacer 76 is the same as that of the circlip 26.
- the spacer 76 has a cylindrical inner peripheral surface that fits with the cylindrical outer peripheral surface of the inner ring, and has a slope that receives the ball 20 on the outer periphery.
- the retaining ring 78 is fitted in a groove formed on the outer peripheral surface of the inner ring 20.
- an insulating plate 80 formed of an insulating material such as a laminate of phenol resin or epoxy resin is used instead of the partition plate 70 in the embodiment of FIG. It is interposed on the flange mating surface.
- Insulating bush 82 and insulating washer 84 are used to prevent energization through bolt 74.
- Reference numeral 86 indicates a normal washer.
- FIG. 9 illustrates the case where the present invention is applied to an electric vehicle, in which the output of the motor is transmitted to the differential via the shaft coupling to rotate the driving wheel!
- the double offset joint is a torque that is built in between the inner ring formed on the spherical inner peripheral surface of the track extending in the axial direction, the outer ring formed on the cylindrical inner peripheral surface of the track extending in the axial direction, and the inner and outer ring tracks. It consists of a transmission ball and a cage with a pocket that is interposed between the inner and outer rings and accommodates the torque transmission ball. Made.
- the cage is in contact with the spherical outer peripheral surface of the inner ring at the inner spherical surface and in contact with the cylindrical inner peripheral surface of the outer ring at the outer spherical surface.
- the center of curvature of the inner spherical surface of the cage and the center of curvature of the outer spherical surface are offset by an equal distance from the joint center to the opposite side in the axial direction.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Motor Power Transmission Devices (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-270337 | 2004-09-16 | ||
JP2004270337A JP4854944B2 (ja) | 2004-09-16 | 2004-09-16 | 鉄道車両用軸継手 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006030855A1 true WO2006030855A1 (ja) | 2006-03-23 |
Family
ID=36060105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/017036 WO2006030855A1 (ja) | 2004-09-16 | 2005-09-15 | 車両用軸継手 |
Country Status (2)
Country | Link |
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JP (1) | JP4854944B2 (ja) |
WO (1) | WO2006030855A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008038928A (ja) * | 2006-08-01 | 2008-02-21 | Ntn Corp | 等速自在継手 |
JP2008064121A (ja) * | 2006-09-04 | 2008-03-21 | Ntn Corp | クロスグルーブ型等速自在継手 |
JP2008232236A (ja) * | 2007-03-19 | 2008-10-02 | Jtekt Corp | 摺動式ボール形等速ジョイント |
WO2014119147A1 (ja) * | 2013-01-29 | 2014-08-07 | Ntn株式会社 | 電気自動車駆動ユニット |
CN104228565A (zh) * | 2014-09-28 | 2014-12-24 | 长城汽车股份有限公司 | 用于车辆的减速器组件和具有其的车辆 |
US10016798B2 (en) | 2012-08-31 | 2018-07-10 | Primetals Technologies Japan, Ltd. | Gear spindle and oil seal used therein |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5101459B2 (ja) * | 2008-10-29 | 2012-12-19 | 三菱重工業株式会社 | ギアカップリングの潤滑剤シール構造 |
US8820753B2 (en) | 2011-04-26 | 2014-09-02 | Mitsubishi Heavy Industries, Ltd. | Lubricant sealing structure for gear coupling |
JP5758705B2 (ja) * | 2011-06-08 | 2015-08-05 | 三菱日立製鉄機械株式会社 | ギヤスピンドル及びそれに用いられるオイルシール |
US9200678B2 (en) | 2011-09-07 | 2015-12-01 | Mitsubishi Electric Corporation | Gear coupling |
JP6185727B2 (ja) * | 2013-03-06 | 2017-08-23 | 川崎重工業株式会社 | 平行カルダン駆動方式の操舵台車 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0747619Y2 (ja) * | 1989-04-06 | 1995-11-01 | エヌティエヌ株式会社 | プロペラシャフト用等速ジョイント |
JPH08244603A (ja) * | 1995-03-09 | 1996-09-24 | Railway Technical Res Inst | 鉄道車両用電動機の取付構造 |
JPH10278783A (ja) * | 1997-04-11 | 1998-10-20 | Fuji Heavy Ind Ltd | 鉄道車両用軌間可変台車の駆動装置 |
JPH1191554A (ja) * | 1997-09-18 | 1999-04-06 | Railway Technical Res Inst | 鉄道車両用駆動装置 |
JPH11124033A (ja) * | 1997-10-23 | 1999-05-11 | Fuji Heavy Ind Ltd | 鉄道車両用操舵台車 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6072304A (ja) * | 1983-09-28 | 1985-04-24 | Mitsubishi Electric Corp | アンテナ装置 |
JPH01210619A (ja) * | 1988-02-17 | 1989-08-24 | Matsui Seisakusho:Kk | 自在継手 |
JP3308051B2 (ja) * | 1993-07-30 | 2002-07-29 | エヌティエヌ株式会社 | クロスグルーブ型等速ジョイント |
JPH07269585A (ja) * | 1994-03-31 | 1995-10-17 | Ntn Corp | ダブルドラム形等速自在継手 |
JPH09158956A (ja) * | 1995-12-05 | 1997-06-17 | Toyota Motor Corp | シャフト組立体 |
JPH1089371A (ja) * | 1996-09-19 | 1998-04-07 | Sumitomo Metal Ind Ltd | 鉄道車両用歯車形たわみ軸継手 |
JP3529741B2 (ja) * | 2001-04-04 | 2004-05-24 | 川崎重工業株式会社 | 鉄道車両用台車の駆動装置 |
-
2004
- 2004-09-16 JP JP2004270337A patent/JP4854944B2/ja not_active Expired - Fee Related
-
2005
- 2005-09-15 WO PCT/JP2005/017036 patent/WO2006030855A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0747619Y2 (ja) * | 1989-04-06 | 1995-11-01 | エヌティエヌ株式会社 | プロペラシャフト用等速ジョイント |
JPH08244603A (ja) * | 1995-03-09 | 1996-09-24 | Railway Technical Res Inst | 鉄道車両用電動機の取付構造 |
JPH10278783A (ja) * | 1997-04-11 | 1998-10-20 | Fuji Heavy Ind Ltd | 鉄道車両用軌間可変台車の駆動装置 |
JPH1191554A (ja) * | 1997-09-18 | 1999-04-06 | Railway Technical Res Inst | 鉄道車両用駆動装置 |
JPH11124033A (ja) * | 1997-10-23 | 1999-05-11 | Fuji Heavy Ind Ltd | 鉄道車両用操舵台車 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008038928A (ja) * | 2006-08-01 | 2008-02-21 | Ntn Corp | 等速自在継手 |
JP2008064121A (ja) * | 2006-09-04 | 2008-03-21 | Ntn Corp | クロスグルーブ型等速自在継手 |
JP2008232236A (ja) * | 2007-03-19 | 2008-10-02 | Jtekt Corp | 摺動式ボール形等速ジョイント |
US10016798B2 (en) | 2012-08-31 | 2018-07-10 | Primetals Technologies Japan, Ltd. | Gear spindle and oil seal used therein |
US10792715B2 (en) | 2012-08-31 | 2020-10-06 | Primetals Technologies Japan, Ltd. | Gear spindle and oil seal used therein |
WO2014119147A1 (ja) * | 2013-01-29 | 2014-08-07 | Ntn株式会社 | 電気自動車駆動ユニット |
JP2014144692A (ja) * | 2013-01-29 | 2014-08-14 | Ntn Corp | 電気自動車駆動ユニット |
CN104955667A (zh) * | 2013-01-29 | 2015-09-30 | Ntn株式会社 | 电动汽车驱动单元 |
CN104228565A (zh) * | 2014-09-28 | 2014-12-24 | 长城汽车股份有限公司 | 用于车辆的减速器组件和具有其的车辆 |
Also Published As
Publication number | Publication date |
---|---|
JP4854944B2 (ja) | 2012-01-18 |
JP2006083962A (ja) | 2006-03-30 |
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