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
  • F16D3/224—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 sphere
  • F16D3/2245—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 sphere where the groove centres are offset from the joint centre
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
  • B60K17/00—Arrangement or mounting of transmissions in vehicles
  • B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
• • 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
  • F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
  • F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
  • F16D3/065—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement by means of rolling elements
• • 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
  • F16D3/2233—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 where the track is made up of two curves with a point of inflexion in between, i.e. S-track joints
• • 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
  • F16D3/2237—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 where the grooves are composed of radii and adjoining straight lines, i.e. undercut free [UF] type joints
• • 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
  • F16D2003/22306—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 having counter tracks, i.e. ball track surfaces which diverge in opposite directions
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S464/00—Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
  • Y10S464/904—Homokinetic coupling
  • Y10S464/906—Torque transmitted via radially spaced balls

Definitions

• the invention relates to a constant velocity joint in the form of a counter track joint having the features of an outer joint part, which has a first longitudinal axis and the first outer ball tracks and second outer ball tracks, an inner joint part, which has a second longitudinal axis and the first inner ball tracks and second inner ball tracks, the first outer ball tracks and the first inner ball tracks form first pairs of tracks with each other, the second outer ball tracks and the second inner ball tracks form second pairs of tracks, the pairs of tracks each receive a torque transmitting ball, a ball cage sits between the outer joint part and the inner joint part and faces circumferentially distributed cage windows, each receiving at least one of the balls, the first pairs of tracks open at stretched joint in the joint center plane in a first direction Ri, the second pairs of tracks open with an extended joint in the joint center plane in a second direction R 2 .
• Counter-track joints of the aforementioned type are known in principle from DE 102 20 711 A1, where joints with 6 balls and 8 balls are shown.
• the type of ball tracks corresponds to the type known per se from Rzeppa joints (RF joints) as well as from undercut free joints (UF joints). That is, the center lines of the ball tracks consist of uniform radii (RF joint) or consist of radii and subsequent axis-parallel straight lines (UF joint) together.
• RF joint uniform radii
• UF joint undercut free joints
• the axial opening direction of the pairs of tracks alternates over the circumference, which leads to the type of counter-track joint.
• counter-track joints are known from DE 100 60 220 A1, in which the center lines of the first outer ball tracks near the joint opening have a turning point, so that the center lines of the first outer ball tracks are S-shaped.
• the flexion angle of these counter-track joints can be increased in this way.
• Joints of the type mentioned above have been produced in different sizes, wherein the geometric conditions have been derived taking into account the er ⁇ required torque capacity of available ball sizes, being used as joint balls standard balls from the ball bearing manufacturing.
• the interpretation of known joints has also been determined or influenced by the connection dimensions of the available intermediate shafts, ie in particular the pitch circle diameter of the shaft teeth of such intermediate waves, which must correspond to the pitch circle diameter of the shaft teeth in the inner joint part.
• Object of the present invention is to provide a space-optimized Gegenbahnge- steering of the type mentioned, which claimed at a given Drehmomentka ⁇ capacity the lowest possible radial space.
• a first approach for this purpose is that the ratio V1 of pitch diameter PCDS of the shaft toothing in the inner joint part assumes a value between 0.9 and 1.3 in the third power to the product of ball diameter DK squared and pitch circle diameter of the balls when the joint PCDB is stretched ie
• V1 PCDS 3 / (DK 2 ⁇ PCDB).
• a second approach is that the ratio V3 of pitch circle diameter of the shaft teeth in the inner joint part PCDS to OR factor between 0.34 and 0.37, wherein the OR factor is defined with the sum of Generalnik ⁇ diameter of the ball tracks PCDB at stretched Joint and ball diameter DK, so that applies
• V3 PCDS / (PCDB + DK).
• the ratio V2 between the IR factor and the OR factor has values between 0.525 and 0.585, the IR factor being defined by the difference between the pitch circle diameter of the balls when the joint PCDB is stretched and the ball diameter DK and the OR factor defines with the sum of the pitch circle diameter of the balls with the steering cable PCDB extended to the ball diameter DK, so that the following applies
• V2 (PCDB - DK) / (PCDB + DK).
• V4 PCDS / (PCDB - DK).
• the joint can be designed as a hexagonal joint or in a particularly favorable execution as eight-ball joint.
• the joint is designed so that the bending angle is in the range between 25 ° to 45 °, in particular in the range between 30 ° and 40 °. This specification means that, within this bending angle, there is still a safe ball wrap in the inner and outer ball tracks and only at flexion angles above these areas first balls in the diffraction plane emerge from the ball tracks.
• the joint according to the invention can be designed as a disc joint with unilateral Anflan ⁇ Schung on the outer joint part or as a monoblock joint, wherein a joint bottom and a shaft journal are integrally formed on the outer joint part.
• Joints according to the invention can be used in side shafts of motor vehicles which establish the connection between differential output and wheel hub.
• a particularly preferred use as a differential-side fixed joint in such side shafts is given, which have two fixed joints and a displacement unit in the intermediate shaft.
• joints according to the invention can also be used in longitudinal drive shafts of motor vehicles which comprise at least one fixed joint and one displacement joint or at least two fixed joints and one displacement unit.
• Another preferred use consists in multi-part longitudinal drive shafts of motor vehicles, which in addition to a fixed joint at least one intermediate joint and a sliding joint and / or at least one intermediate joint and a longitudinal displacement unit.
• Figure 1 shows an inventive counter track joint with six balls in Auscul ⁇ tion as a disc joint a) in axial view b) in a longitudinal section along section line A-A;
• Figure 2 shows an inventive counter track joint with eight balls in Auscul ⁇ tion as a disc joint a) in axial view b) in a longitudinal section along section line AA;
• Figure 3 shows a counter track joint according to the invention in monobloc design with six balls a) in axial view b) in longitudinal section along section line AA c) in longitudinal section along section line BB;
• Figure 4 shows an inventive counter track joint in monobloc design with eight balls a) in axial view b) in longitudinal section along section line A-A c) in longitudinal section along section line B-B;
• FIG. 5 shows a propeller shaft according to the invention with at least one joint according to the invention and a displacement unit in partial longitudinal section;
• Figure 6 shows an inventive installation situation of a propeller shaft according to Figure 5 in a vehicle in partial longitudinal section
• FIG. 7 shows a longitudinal drive shaft according to the invention with a fixed joint according to the invention and a sliding joint in the longitudinal half section;
• Figure 8 shows a longitudinal drive shaft according to the invention with a erfindungsge ⁇ MAESSEN solid hinge as an intermediate joint, another universal joint as an intermediate joint and a sliding joint in the longitudinal half section.
• a erfi ⁇ dungsconcees constant velocity joint 11 is designed as a so-called disc joint. It comprises an outer joint part 12 with a first opening 13 and a second opening 14. The joint further comprises an inner joint part 15, a ball cage 16 and torque transmitting balls 17.
• First outer Kugelbah ⁇ nen 18 in the outer joint part 12 and first inner ball tracks 19 in the inner joint part 15 take Bullets 17i on and form first pairs of tracks together.
• Second outer Ball tracks 20 in the outer joint part 12 and second inner ball tracks 21 in the Ge inner part 15 form second pairs of tracks with each other, take the second balls 17 2 auf ⁇ .
• the two types of track pairs (18, 19, 20, 21) are alternately formed circumferentially. There are specially designed six pairs of trains.
• the first pairs of tracks form an opening angle with each other, which points in a first direction Ri to the opening 13.
• the second pairs of tracks form an opening angle miteinan ⁇ , which has in a second direction R 2 to the opening 14.
• a joint center plane E which receives the centers P of the balls, intersects the longitudinal axis of the Len, which is defined by the longitudinal axes A 12 of the outer joint part and A 15 of the Gelenkin- nenteils, in a joint center M.
• the ball cage 16 holds the first balls 17- ⁇ and second balls 17 2 in alternately circumferentially distributed cage windows 24i, 24 second
• the pitch diameter on which the ball centers P lie with the joint extended is denoted PCDB.
• the pitch circle diameter of the insertion opening 27 of the inner joint part 15, which as a rule has a shaft toothing not shown in detail here, is designated PCDS.
• the ball diameter is denoted by DK.
• An inventive constant velocity joint 11 is designed as a so-called disc joint. It comprises an outer joint part 12 with a first opening 13 and a second opening 14. The joint further comprises an inner joint part 15, a ball cage 16 and torque transmitting balls 17.
• First outer Kugelbah ⁇ nen 18 in the outer joint part 12 and first inner ball tracks 19 in the inner joint part 15 take Bullets 17i on and form first pairs of tracks together.
• Second outer ball tracks 20 in the outer joint part 12 and second inner ball tracks 21 in the inner joint part 15 form second pairs of tracks with each other, which receive second balls 17 2 .
• the two types of track pairs (18, 19, 20, 21) are alternately formed circumferentially. There are specially designed eight pairs of trains.
• the first pairs of tracks form an opening angle with each other, which points in a first direction Ri to the opening 13.
• the second pairs of tracks form an opening angle miteinan ⁇ , which has in a second direction R 2 to the opening 14.
• a joint center plane E which receives the centers P of the balls, intersects the longitudinal axis of the joint, which is defined by the longitudinal axes A 12 of the outer joint part and A15 of the joint nenteils is defined, in a joint center M.
• the ball cage 16 holds the first balls 17i and the second balls 17 2 in alternately circumferentially distributed Käfigfen ⁇ star 24- ⁇ , 24 second
• the pitch circle diameter, on which the ball centers P lie in the extended joint is designated PCDB.
• the pitch circle diameter of the insertion opening 27 of the inner joint part 15, which as a rule has a wave toothing not shown here in detail, is designated PCDS.
• the Ku ⁇ diameter is denoted by DK. Since two first web pairs (18, 19) are cut in the sectional plane AA, the web pairs shown in section open in unison in the first direction R 1 towards the opening 13.
• the outer joint part 12 here has an integrally formed bottom 25 and a shaft journal 26 adjoining it. Otherwise, the joint is largely identical to that shown in FIG. In each case radially opposite one another in the plane AA, a first (top) and a second (bottom) web pair are cut, while in the plane BB radially opposite a second (top) and a first (bottom) web pair is cut.
• the outer joint part 12 here has an integrally formed bottom 25 and a shaft journal 26 adjoining it. Otherwise, the joint largely coincides with that shown in FIG. In each case radially opposite in the plane AA two second pairs of tracks (20, 21) are cut, while in the plane BB radially opposite two first pairs of tracks (18, 19) are cut.
• FIG. 5 shows a propeller shaft according to the invention which has a constant velocity joint 11 according to the invention as a monobloc joint according to one of FIGS. 3 or 4, furthermore an intermediate shaft 35 and a second constant velocity joint 31, which can likewise be a joint according to the invention, in particular of identical construction Joint 11.
• the intermediate shaft 35 comprises an axial displacement unit 28 which comprises as essential components a sleeve 29, a pin 30 and between both effective elements not designated in detail torque transmitting balls and which allows a length compensation of the propeller shaft between the constant velocity joints 11, 31 ,
• FIG. 6 shows a propeller shaft according to FIG. 5 in a mounting situation as a side shaft in a motor vehicle.
• the shaft journal of the steering element 11 according to the invention is inserted into a differential gear 32 and fixed therein, while the shaft journal of the second ball joint 31 is inserted into a wheel hub assembly 33 with a wheel bearing 34.
• the same details are denoted by the same reference numerals as in FIG.
• a propeller shaft according to the invention is shown with a joint 11 according to the invention in the embodiment as a disc joint according to one of Figures 1 or 2, which is designed as a longitudinal drive shaft.
• An intermediate shaft 41 includes a
• Stem shaft 37 is a displacement joint 38, in particular a so-called VL
• the shaft journal 36 is connected to the hinge 11 according to the invention.
• a propeller shaft according to the invention is shown with a hinge 11 according to the invention as a disc joint according to one of Figures 1 or 2, which is designed as a longitudinal drive shaft and the right to left a rubber disc joint 42, an intermediate shaft 43 with a flange 44 and a Pin 45, further comprising an elastic intermediate bearing 46, in connection with the joint 11 according to the invention comprises a further intermediate shaft 47 with a shaft 48, a further intermediate bearing 49 and a universal joint 50; Finally, a further intermediate shaft 51, the shaft journal 52 is connected to a constant velocity Verschiebegelenk 53, in particular a VL joint. Waves of this type are installed in the longitudinal drive train of motor vehicles between a Getriebe ⁇ output and a differential input. Counter track joint with optimized space

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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)
• Rolling Contact Bearings (AREA)
• Pivots And Pivotal Connections (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=34959353

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (8)

Family Cites Families (13)

• 2004
  • 2004-11-02 BR BRPI0419148-0A patent/BRPI0419148A/pt not_active Application Discontinuation
  • 2004-11-02 JP JP2007538275A patent/JP2008519206A/ja active Pending
  • 2004-11-02 DE DE202004021771U patent/DE202004021771U1/de not_active Expired - Lifetime
  • 2004-11-02 CN CN2004800443555A patent/CN101052817B/zh not_active Expired - Fee Related
  • 2004-11-02 US US10/562,669 patent/US7686695B2/en not_active Expired - Fee Related
  • 2004-11-02 WO PCT/EP2004/012379 patent/WO2006048031A1/de active Application Filing
  • 2004-11-02 EP EP04822188A patent/EP1807635A1/de not_active Ceased

Non-Patent Citations (1)

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