GB2086534A - Universal joints - Google Patents

Universal joints Download PDF

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Publication number
GB2086534A
GB2086534A GB8130416A GB8130416A GB2086534A GB 2086534 A GB2086534 A GB 2086534A GB 8130416 A GB8130416 A GB 8130416A GB 8130416 A GB8130416 A GB 8130416A GB 2086534 A GB2086534 A GB 2086534A
Authority
GB
United Kingdom
Prior art keywords
joint
joint member
cage
stop face
outer joint
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.)
Granted
Application number
GB8130416A
Other versions
GB2086534B (en
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.)
GKN Driveline Deutschland GmbH
Original Assignee
Loehr and Bromkamp GmbH
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 Loehr and Bromkamp GmbH filed Critical Loehr and Bromkamp GmbH
Publication of GB2086534A publication Critical patent/GB2086534A/en
Application granted granted Critical
Publication of GB2086534B publication Critical patent/GB2086534B/en
Expired legal-status Critical Current

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
    • 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
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
    • 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
    • F16D2003/22316—Means for fastening or attaching the bellows or gaiters
    • 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
    • F16D2003/2232—Elements arranged in the hollow space between the end of the inner shaft and the outer joint member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Diaphragms And Bellows (AREA)
  • Steering Controls (AREA)
  • Sealing Devices (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

In a constant velocity universal joint of the type comprising a hollow outer joint member 1 and an inner joint member 4 received in the outer joint member with torque transmitting balls 6 held at the intersection of complementary crossing grooves 5, 3 in the inner and outer joint members respectively, a stop face 13, for engagement by an end face of a ball cage 7, is provided on the outer joint member 1 and prevents damage being done to the internal components of the joint, such as the ball cage 7, during assembly and/or plunge of the joint. A further stop face 15 may be provided on an annular element 11, which element also incorporates a sealing bellows 9, the stop face 15 preventing damage to the internal components of the joint during disassembly and/or plunge of the joint. <IMAGE>

Description

SPECIFICATION Universal joint This invention relates to a universal joint of the type comprising; a hollow outer joint member whose inner wall is provided with grooves, an inner joint member arranged in the outer joint member, the inner joint member having in its outer wall a number of grooves corresponding to the number of grooves in the outer joint member, with each pair of grooves in the outer and inner joint member crossing one another and jointly receiving at their intersection a ball for torque transmission, and a cage having windows in which are received the torque transmitting balls, which cage is arranged between the inner and outer joint member in a plane that bisects the angle between the axes of the inner and outer joint member, and with the windows extending over part of the circumference of the cage.
Universal joints of this type are capable of relative axial displacement, i.e. plunging movement, between the inner and outer joint members, and it is necessary for this plunge to be limited by stops. The limitation of plunge is required in order to avoid dismantling of the joint when, for example, a vehicle incorporating the joint is jacked up. However, such stops are not suitable for receiving relatively high forces that may occur when a drive shaft associated with the joint is pressed into the inner joint member on assembly. Also, such stops have the disadvantage in that the full plunging distance of the joint may not fully be utilised.
In German Patent Specifications 1,211,871 and 1,232,411, there are shown methods of limiting the plunge associated with cross-track joints as described above. The limitation on plunge distance is achieved by providing a part-spherical face on the inner joint member with a radius identical to that of the inner face of the ball cage. As the joint plunges, the balls move circumferentially of the cage until they abut the webs between the cage windows.
Consequently, at the end points of the plunging distance of the joint, a type of stop is obtained limited by the window length of the cage in the circumferential direction. However, stops of this type, in which the balls are supported on the webs of the cage, are not suitable for receiving high axial loads and it has been found that even medium loads can result in cage fracture. This means that when the joint is assembled, in order to prevent the joint components from being damaged, the splined shaft cannot be pressed into the inner joint member.
It is an object of the present invention to provide a stop for a plunging joint which is suitable for receiving the high forces that occur when the splined shaft is pressed in place, while fully utilising the entire plunging distance of the joint.
According to the present invention there is provided a constant velocity ratio universal joint comprising; a hollow outer joint member whose inner wall is provided with grooves, an inner joint member arranged in the outer joint member, the innerjoint member having in its outer wall a number of grooves corresponding to the number of grooves in the outer joint member, with each pair of grooves in the outer and inner joint member crossing one another and jointly receiving at their intersection a ball for torque transmission, and a cage having windows in which are received the torque transmitting balls, which cage is arranged between the inner and outer joint member in a plane that bisects the angle between the axes of the inner and outer joint member, and with the windows extending over part of the circumference of the cage, characterised in that the outer joint member is provided with a stop face which co-operates during assembly and/or plunge of the joint with one end face of said cage.
The stop face may be annular and concentric with the axis of rotation of the joint.
The outer joint member may be provided with a further stop face which co-operates during disassembly and/or plunge of the joint with the other face of the cage. The other stop face may form part of an element which also receives a sealing sleeve to seal a drive shaft assembly associated with the joint.
An advantage of a universal joint according to the present invention is that while the entire plunging distance between the inner and outer joint members is fully utilized, the axial forces that may occur during assembly can be received without any damage being done to a joint component, in particular the joint cage.
The provision of a second stop face co-operating with the other end face of the cage, ensures easy removai of the splined shaft associated with the inner joint member. This second stop face may be formed as a rigid annular shroud which is fixed at one end to the outer joint member and at its other end to a flexible sealing bellows which in turn sealingly engages the shaft associated with the inner joint member.
The invention will now be described, by way of example only, with reference to the accompanying drawing in which Figure 1 shows a sectional view of a universal joint according to the invention.
Referring to Figure 1, a constant velocity ratio universal joint comprises a hollow outer joint member 1 and an inner joint member 4, received in a cylindrical bore 2 of the outer joint member 1. The inner joint member 4 is drivably connected to the outer joint member 1 via torque transmitting balls 6 arranged concentric to the axis of rotation of the outer joint member 1. The torque transmitting balls 6 are received at the intersection of complementary grooves 3 and 5 in the outer joint member 1 and inner joint member 2. Each pair of complementary grooves 3 and 5 cross each other at an angle to the axis of rotation of the joint.
An annular cage 7 is disposed between the outer and inner joint members and is provided with windows 8 corresponding in number to the torque transmitting balls 6. The cage 7 is guided by the balls 6 into the angle-bisecting plane of the joint, when the joint is articulated.
A sealing bellows 9 of resilient material is attached to a drive shaft 10 associated with the inner joint member 4 and is fixed thereto by means of an annular clip. The other end of the bellows 9 is connected, also by means of a clip, to a rigid annular shroud 11, fixed to the outer joint member 1. The bellows 9 serves to seal the interior of the joint assembly. The end part of the drive shaft 10 is splined and the interior of the inner joint member correspondingly splined, for torque transmission between these components.
Within the hollow interior of the outer joint member 1 there is provided a stop face 13 normal to the axis of rotation 12 of the joint in its unarticulated position. The stop face 13 co-operates with an associated counterface 14 on the cage 7 during assembly and/or plunge of the joint.
A further stop face 15 has also been provided and co-operates during disassembly and/or plunge of the joint with a second counterface 16 of the cage 7.
A securing ring 17 is provided on the splined end of the drive shaft 10 and engages in a groove in the inner joint member 4.
Because of the requirement for a securing ring 17, high axial forces are encountered in assembly or disassembly of the joint. The provision of stop faces 13 and 15 which co-operate with respective counterfaces 14 and 16 ensures that these high axial forces encountered on assembly or disassembly of the joint do not cause damage to the components in the joints.

Claims (5)

1. A constant velocity ratio universal joint com prising; a hollow outer joint member whose inner wall is provided with grooves, an inner joint member arranged in the outer joint member, the inner joint member having its outer wall a number of grooves corresponding to the number of grooves in the outer joint member, with each pair of grooves in the outer and inner joint member crossing one another and jointly receiving at their intersection a ball for torque transmission, and a cage having windows in which are received the torque transmitting balls, which cage is arranged between the inner and outer joint member in a plane that bisects the angle between the axes of the inner and outer joint member, and with the windows extending over part of the circumference of the cage, characterised in that the outer joint member is provided with a stop face which co-operates during assembly and/or plunge of the joint with one end face of said cage.
2. A universal joint according to Claim 1 in which said stop face is annular and concentric with the axis of rotation of the joint.
3. A universal joint according to Claim 1 or Claim 2 in which the outer joint member has a further stop face which co-operates during disassembly and/or plunge of the joint with the other face of the cage.
4. A universal joint as claimed in Claim 3 in which said other stop face forms part of an element which also receives a sealing sleeve to seal a drive shaft assembly associated with the joint.
5. A universal joint subtantially as herein described with reference to and as shown in the accompanying drawing.
GB8130416A 1980-10-30 1981-10-08 Universal joint Expired GB2086534B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3040842 1980-10-30

Publications (2)

Publication Number Publication Date
GB2086534A true GB2086534A (en) 1982-05-12
GB2086534B GB2086534B (en) 1984-04-26

Family

ID=6115517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8130416A Expired GB2086534B (en) 1980-10-30 1981-10-08 Universal joint

Country Status (5)

Country Link
JP (1) JPS5776322A (en)
BR (1) BR8106015A (en)
FR (1) FR2493435A1 (en)
GB (1) GB2086534B (en)
IT (2) IT1194989B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60201166A (en) * 1984-03-24 1985-10-11 Toyoda Gosei Co Ltd Boot for universal coupling
US5833542A (en) * 1997-02-06 1998-11-10 Gkn Automotive, Inc. Transmission joint sealing boot
US6361444B1 (en) * 1998-09-01 2002-03-26 Gkn Automotive, Inc. Flexible boot assembly for a constant velocity joint
US7297067B1 (en) * 2004-12-08 2007-11-20 Gkn Driveline North America, Inc. Plug and method of retaining the same
US8287393B2 (en) * 2005-06-13 2012-10-16 Duc Dao Inner seal for CV joint boot
US20180209485A1 (en) * 2015-07-27 2018-07-26 Trelleborg Boots France Dust boot for transmission joint and corresponding transmission assembly
EP3372859A1 (en) * 2017-03-08 2018-09-12 Steering Solutions IP Holding Corporation Energy absorbing constant velocity joint boot assembly
CN109282016A (en) * 2017-07-20 2019-01-29 通用汽车环球科技运作有限责任公司 Constant-velocity joint sealing element

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0725457Y2 (en) * 1989-03-17 1995-06-07 エヌティエヌ株式会社 Constant velocity joint boots
JPH0632755U (en) * 1992-09-30 1994-04-28 エヌティエヌ株式会社 Cross groove type constant velocity joint
JP2586723Y2 (en) * 1992-09-30 1998-12-09 エヌティエヌ株式会社 Cross groove constant velocity joint
JP4855164B2 (en) * 2006-07-18 2012-01-18 Ｎｔｎ株式会社 Cross groove type constant velocity universal joint
JP5236201B2 (en) * 2007-04-12 2013-07-17 Ｎｔｎ株式会社 Rear wheel axle module

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1537620A (en) * 1967-09-25 1968-08-23 Birfield Eng Ltd Improvements to universal joints
DE2015947C3 (en) * 1970-04-03 1981-12-24 Daimler-Benz Ag, 7000 Stuttgart Constant velocity sliding joint
DE2419236A1 (en) * 1974-04-22 1975-05-07 Alexander M Dipl Ing Zink Universal joint for vehicle drive shafts - uses a number of bearing balls in one plane between dividing keys of shafts

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60201166A (en) * 1984-03-24 1985-10-11 Toyoda Gosei Co Ltd Boot for universal coupling
US4693484A (en) * 1984-03-24 1987-09-15 Toyoda Gosei Co., Ltd. Boot for universal joint
JPH0212308B2 (en) * 1984-03-24 1990-03-19 Toyoda Gosei Kk
US5833542A (en) * 1997-02-06 1998-11-10 Gkn Automotive, Inc. Transmission joint sealing boot
US6361444B1 (en) * 1998-09-01 2002-03-26 Gkn Automotive, Inc. Flexible boot assembly for a constant velocity joint
US7297067B1 (en) * 2004-12-08 2007-11-20 Gkn Driveline North America, Inc. Plug and method of retaining the same
US8287393B2 (en) * 2005-06-13 2012-10-16 Duc Dao Inner seal for CV joint boot
US9005042B2 (en) 2005-06-13 2015-04-14 Salflex Polymers Limited Inner seal for CV joint boot
US20180209485A1 (en) * 2015-07-27 2018-07-26 Trelleborg Boots France Dust boot for transmission joint and corresponding transmission assembly
US10830283B2 (en) * 2015-07-27 2020-11-10 Trelleborg Boots France Dust boot for transmission joint and corresponding transmission assembly
EP3372859A1 (en) * 2017-03-08 2018-09-12 Steering Solutions IP Holding Corporation Energy absorbing constant velocity joint boot assembly
US10788079B2 (en) 2017-03-08 2020-09-29 Steering Solutions Ip Holding Corporation Energy absorbing constant velocity joint boot assembly
CN109282016A (en) * 2017-07-20 2019-01-29 通用汽车环球科技运作有限责任公司 Constant-velocity joint sealing element

Also Published As

Publication number Publication date
FR2493435A1 (en) 1982-05-07
JPS5776322A (en) 1982-05-13
BR8106015A (en) 1982-06-08
IT1194989B (en) 1988-09-28
GB2086534B (en) 1984-04-26
IT8107056V0 (en) 1981-09-08
IT8105209A0 (en) 1981-09-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee