CN101326379B - Joining comprising a counter path joint with limited axial displacement - Google Patents
Joining comprising a counter path joint with limited axial displacement Download PDFInfo
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- CN101326379B CN101326379B CN2006800411549A CN200680041154A CN101326379B CN 101326379 B CN101326379 B CN 101326379B CN 2006800411549 A CN2006800411549 A CN 2006800411549A CN 200680041154 A CN200680041154 A CN 200680041154A CN 101326379 B CN101326379 B CN 101326379B
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 42
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000001186 cumulative effect Effects 0.000 claims description 4
- 208000034189 Sclerosis Diseases 0.000 claims description 2
- 229910001651 emery Inorganic materials 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
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- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- 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
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- 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
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- 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
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- 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
- F16D2003/22303—Details of ball cages
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Pivots And Pivotal Connections (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to an articulated shaft comprising a first articulated joint, an intermediate shaft and a second articulated joint. The first articulated joint is a homocentric ball-and-socket joint (11) in the form of a counter path joint, comprising an external part (12) having first and second external ball paths (16, 18), an internal part (14) having first and second internal ball paths (17, 19). First external ball paths (16) form, with first internal ball paths (17), first path pairs (16, 17) which expand (a) in a first axial direction Ri1. Second external ball paths (18) form, with second internal bath paths (19), second path pairs (18, 19) which expand (ss) in a second axial direction Ri2.; Balls (20) which are guided in path pairs and the ball centre points thereof, which are located on a pitch circle radius about a joint centre point (M), are guided to a ball cage (21) which is joined to cage windows (2) which are distributed on the periphery thereof, wherein the balls (20) are maintained on a common central plane (E) and are guided onto the angle bisecting plane when the joint is displaced. According to the invention, axial plays are provided between the joint external part (12) and the ball cage (21) and between the ball cage (21) and the joint internal part (14), which enables relative axial displacement between the joint external part (12) and joint internal part (14).
Description
Technical field
The present invention relates to a kind of cardan shaft, it comprises one first universal joint, a jack shaft and one second universal joint, and wherein said first universal joint is one to be the synchronous card ball joint of relative track joint form.
Background technique
DE 100 60 120A1 have narrated the relative raceway type joint as first universal joint, suppose that wherein the axial displacement path must limit with the control angle of wherein adjusting.Described relative track joint does not have axial force when its axial middle position, so be suitable for connecing the less vibration in the coupling transmission system.But, if an axial displacement takes place, will produce axial force, under torque load(ing) so that may transmit axial vibration.If the axial displacement Path too long will lose the effect of no axial force or low axial force.A purpose of the present invention is to propose a kind of cardan shaft of using the above-mentioned type joint, and it can help the vibration in the decoupling zero transmission system widely.
Summary of the invention
Above-mentioned purpose reaches by proposing a kind of cardan shaft, and described cardan shaft comprises one first universal joint, a jack shaft and one second universal joint; Wherein said first universal joint is one to be the synchronous card ball joint of relative track joint form, and described synchronous card ball joint comprises:
One has the socket parts of the first and second outer ball receways;
One has the inner joint part of ball receways in first and second, the wherein said first outer ball receway and the
In one ball receway constitute together towards open first raceway of a first axle direction Ri1 right, and the described second outer ball receway constitute towards open second raceway of one second axial direction Ri2 with the second interior ball receway right;
Described raceway within the ball of guidance, its centre of sphere Z is positioned one on the Pitch radius PCR of a joint center M;
One has along the ball retainer of the retainer window that circumferentially distributes, described ball remains in described ball retainer in the E of a common center plane and guides on to point plane at the angle when described joint is crooked, wherein on the one hand between described socket parts and the described ball retainer and all be provided with between described ball retainer and the described inner joint part on the other hand axial clearance with allow one described socket parts and described in
Displacement to axial between the joint component.
More particularly, the present invention advocates, when described joint is in aligned condition, in the ratio of line shaft between the described Pitch radius PCR of displacement S and described ball (0.01＜S/PCR＜0.09) between 0.01 and 0.09 scope.When following the relevant axial displacement path of described and joint size, what just can prevent that described joint from producing in operating range axially makes a concerted effort to become too high.
According to a preferred embodiment, its proposition, when described joint was in aligned condition, the ratio of described line shaft between the described Pitch radius PCR of displacement S and described ball was less than 0.05 (S/PCR＜0.05).If difference hour between the right opening angle of raceway, then axial force can be low especially.So the present invention advocates, when described joint is in aligned condition, during the final position of the described displacement to axial between described socket parts and described inner joint part, described first raceway to or right opening angle α of described second raceway or β among less relatively angle be less than 8 ° (° v β＜8, α＜8 °).The right opening angle of described raceway can further reduce, so that when described joint is in aligned condition, during one central position of the described displacement to axial between described socket parts and described inner joint part, described first raceway big or small identical to right opening angle α of described second raceway and β, two opening angle α and β are all less than 8 ° (° ∧ β＜8, α＜8 °).
More particularly, the present invention advocates, on outside and the outside of described ball retainer and the surface that inner face is all spherical part of the inner face of described the above socket parts of first universal joint, described inner joint part, wherein radial clearance COR between described socket parts and described ball retainer and the radial clearance CIR between described ball retainer and described inner joint part are between the scope of 0.015mm and 0.20mm.This scheme can advantageously be simplified the production of described first universal joint, because these do not guide function but the respective surfaces that only is used as axial stop can easily be made by a forming operation or a simple turning operation in the described type fittings.More particularly, the present invention advocates, after the forming operation of essential machining allowance was provided, only by emery wheel preliminary working and sclerosis then, described ball receway was then only hardened behind forming operation and is ground at the interior spherical system guide face that is used for the ball retainer of described socket parts.System guide face and ball receway can carry out induction hardening in a single operation process.
The present invention also advocates a favourable yardstick scheme, and promptly the axial clearance BC of the described ball in described retainer window is between the scope of-0.03mm (press fit) and 0.10mm (Spielpassung).
According to another preferable yardstick scheme, the present invention advocates, on described first universal joint, the radially sphere gap BO of the described ball of described raceway centering is between the scope of-0.03mm (press fit) and 0.08mm (Spielpassung).Described number range, as formerly described, the joint of all common size in using applicable to automobile equally.
In addition, according to an aspect of the present invention at described first universal joint, the raceway center line M16 of the described first outer ball receway comprises that in central authorities one has radius R 2 and its center O2 and is offset the arc of an axial offset along first direction from the central plane E of described joint, and described raceway center line M16 cumulatively radially inwardly departs from described radius R 2 along first direction after described arc; And the raceway center line M17 of ball receway comprises that in central authorities one has radius R 2 and its center O2 and is offset the arc of an axial offset along second direction from the central plane E of described joint in described first, and described raceway center line M17 cumulatively radially inwardly departs from described radius R 2 along second direction after described arc.
In above-mentioned cardan shaft, at described first universal joint, the raceway center line M16 of the described first outer ball receway comprises that at described first direction one has small radii R3 and the crooked in the same direction and continuous arc that connects aforementioned arc after having the described arc of described radius R 2; And the raceway center line M17 of the described first interior ball receway comprises that in described second direction one has small radii R3 and the crooked in the same direction and continuous arc that connects aforementioned arc after having the described arc of described radius R 2.
Perhaps, in above-mentioned cardan shaft, at described first universal joint, the raceway center line M16 of the described first outer ball receway after having the described arc of described radius R 2, along the cumulative leading thread of described second direction to outwards departing from described radius R 2; And in described first the raceway center line M17 of ball receway after having the described arc of described radius R 2, along the cumulative leading thread of described first direction to outwards departing from described radius R 2.At described first universal joint, the raceway center line M16 of the described first outer ball receway after having the described arc of described radius R 2, described second direction comprise one have radius R 1 and curved section oppositely extend and connect continuously aforementioned arc and center O 1 be positioned one have described radius R 2 around the arc outside the circle of center O 2; And in described first the raceway center line M17 of ball receway after having the described arc of described radius R 2, described first direction comprise one have radius R 1 and curved section oppositely extend and connect continuously aforementioned arc and center O 1 be positioned one have described radius R 2 around the arc outside the circle of center O 2.
Perhaps, in above-mentioned cardan shaft, at described first universal joint, the raceway center line M18 of the described second outer ball receway comprises that in central authorities one has radius R 5 and its center O5 and is offset the arc of an axial offset along second direction from the central plane E of described joint, and described raceway center line M18 cumulatively radially outwards departs from described radius R 5 along described second direction after described arc; The raceway center line M19 of ball receway (19) comprises that in central authorities one has radius R 5 and its center O5 and is offset the arc of an axial offset along first direction from the central plane E of described joint in described second, and described raceway center line M19 cumulatively radially outwards departs from described radius R 5 along described first direction after described arc.Preferably, at described first universal joint, the raceway center line M18 of the described second outer ball receway (18) after having the described arc of described radius R 5, described second direction comprise one have radius R 4 and curved section oppositely extend and connect continuously aforementioned arc and center O 4 be positioned one have described radius R 5 around the arc outside the circle of center O 5; And in described second the raceway center line M19 of ball receway (19) after having the described arc of described radius R 5, described first direction comprise one have radius R 4 and curved section oppositely extend and connect continuously aforementioned arc and center O 4 be positioned one have described radius R 5 around the arc outside the circle of center O 5.
So the present invention guarantees the big bend angle possibility that becomes at the described first universal joint place, even if at described big bend angle, no matter the axial displacement position how, because race force, thereby make the ball controlled conditions that might keep good and to an effectively control of described first universal joint.Up to now, have only the people to propose described raceway is designed for the permanent joint (DE 103 37 612A1) that does not have an axial displacement possibility.
Described first universal joint preferably can design six balls or eight balls.
Design for second universal joint of cardan shaft of the present invention, the present invention advocates, described second universal joint can be the joint (plunging joint) that endwisely slips, and more particularly is one to be the joint that endwisely slips of triadius type joint (tripode joint), a VL slip joint or an XL slip joint or a DO slip joint form.Selectively, the present invention advocates that described second universal joint can be designed as the form of a permanent joint, and more particularly the form with a cardan joint, an AC joint, a UF joint or a relative track joint provides.With regard to the latter's selection scheme, the present invention also advocates, this jack shaft is the unit that endwisely slips, so, even like this cardan shaft of the present invention that constitutes all receivability one noticeable length change.In all above-mentioned modification, the any vibration that axially imports cardan shaft all can cut off in circumference to displaceability through low-mechanical axis in this is first universal joint of a movable relative track joint form, and it is difficult to the prior art joint on certain degree and the joint that endwisely slips is reached.
Description of drawings
Below will narrate preferred embodiment of the present invention shown in the drawings.
Figure 1 shows that cardan shaft of the present invention relative track joint one have first embodiment of six balls
A) a plane sectional arrangement drawing by opposed ball receway;
B) unfolded drawing of ball retainer;
C) partial longitudinal section by a retainer window and a retainer connecting plate;
D) one according to c) shown in enlarged detailed.
Figure 2 shows that according to Fig. 1 the embodiment's of the joint of an axial displacement position
A) a plane sectional arrangement drawing by opposed ball receway;
B) unfolded drawing of ball retainer;
C) partial longitudinal section by a retainer window and a retainer connecting plate.
Figure 3 shows that according to Fig. 1 and Fig. 2 in a embodiment by the joint in the local longitudinal section of a retainer window and a retainer connecting plate
A) at the view of the primary importance of a maximum axial displacement;
B) at the view of a central axial position;
C) at the view of the second place of a maximum axial displacement;
D) one according to b) shown in enlarged detailed.
Figure 4 shows that and have the embodiment of joint in the local longitudinal section of passing through a retainer window and a retainer connecting plate of additional size one according to Fig. 1 to Fig. 3
A) at the view of the primary importance of a maximum axial displacement;
B) at the view of a central axial position;
C) at the view of the second place of a maximum axial displacement.
Figure 5 shows that according to the joint of Fig. 1 to Fig. 4
A) view according to Fig. 3 b and 4b;
B) one according to the enlarged detailed shown in a).
Figure 6 shows that according to the joint of Fig. 1 to Fig. 5
A) view according to Fig. 5 a;
B) one according to the enlarged detailed shown in a).
Figure 7 shows that second embodiment with six balls and a specific raceway shape of the relative track joint of cardan shaft of the present invention
A) sectional arrangement drawing;
B) axial view.
Figure 8 shows that cardan shaft of the present invention relative track joint one have the 3rd embodiment of a specific raceway shape and eight balls
A) sectional arrangement drawing of A-A;
B) sectional arrangement drawing by the right B-B of second raceway;
C) axial view.
Figure 9 shows that the sectional arrangement drawing that opening angle is shown according to the joint of Fig. 7.
Figure 10 shows that according to the joint of the size that provides the ball receway center line of Fig. 9
A) sectional arrangement drawing of socket parts;
B) sectional arrangement drawing of inner joint part.
Figure 11 shows that of the present invention one has a cardan shaft as the AAR triadius type joint of described second universal joint.
Figure 12 shows that of the present invention one has a cardan shaft as the GI triadius type joint of described second universal joint.
Figure 13 shows that of the present invention one has a cardan shaft as the VL slip joint of described second universal joint.
Figure 14 shows that of the present invention one has a cardan shaft as the DO slip joint of described second universal joint.
Figure 15 shows that of the present invention one has a cardan shaft as the common universal joint of described second universal joint.
Figure 16 shows that of the present invention one has one as the AC permanent joint of described second universal joint and the cardan shaft of an axial displacement unit.
Figure 17 shows that of the present invention one has one as the UF permanent joint of described second universal joint and the cardan shaft of an axial displacement unit.
Figure 18 shows that of the present invention one has one as the stationary phase of described second universal joint cardan shaft to a track joint and an axial displacement unit.
Embodiment
Hereinafter Fig. 1 will be described synthetically.Relative track joint 11 of the present invention comprises that one has the socket parts 12 of a shaping base 13; One has an inner joint part 14 of an insertion axle 15; By the first outer ball receway 16 and first in ball receway 17 constitute right towards open first raceway of a first direction Ri1 at a joint central plane E to this base 13; By the second outer ball receway 18 and second in ball receway 19 constitute right towards open second raceway of one second axial direction Ri2 at joint central plane E to this axle 15.Many circle distribution to first and second these joints of raceway opposing connection.First raceway is that the α and second raceway are β to 18,19 symbols that opening angle gave at central plane E to 16,17 symbols that opening angle gave at central plane E.Holding first ball 20 raceway centering
1With second ball 20
2, described ball has along remaining in convenience center plane E in the ball retainer 21 of the retainer window 22 that circumferentially distributes one.The central shaft A of the joint of expansion also is shown among the figure, and itself and central plane E intersect at joint center M.When transmitting torque, put on described first ball 20 to the power F1 of base 13
1And put on described second ball 20 to the power F2 of axle 15
2Shown in the joint central position, described power F1 and F2 equate, this is because opening angle α and β big or small identical, so put on the equalling zero with FC of all axial forces of ball retainer 21.As from figure c) and d) as seen, ball retainer 21 existing one radial clearances with respect to socket parts 12, radial clearance with respect to inner joint part 14 is also arranged, also have axial clearance thus, the whole axial clearance between joint component 12 and the inner joint part 14 then is called " S " outside.In an illustrated embodiment, socket parts 12 comprise that a spherical inner face 23 and inner joint part 14 comprise a spherical outside 24.In addition, ball retainer 21 comprises a spherical outside 25 and one spherical inner face 26.
In Fig. 2 all and those identical parts in Fig. 1 all can give identical with reference to numbering.Therefore, can be with reference to narration above.Individual views among Fig. 2 hereinafter will synthetically be described.Shown joint is presented at a position, therein this inner joint part 14 with respect to the central plane E relevant with socket parts 12 along first direction with an axial displacement path S2 displacement.As the result of described displacement, first raceway becomes less to 16,17 opening angle α, and second raceway then becomes bigger to 18,19 opening angle β.So, when transmitting torque, put on described first ball 20
1 Axial force F 1 become less and put on described second ball 20
2 Axial force F 2 become bigger.Axial force therefore be not equal to zero and with FC towards axle 15.In this position, thereby ball retainer joint is on the whole no longer with the mode displacement of a no axial force.
In Fig. 3 all and those identical parts in Fig. 1 and Fig. 2 all can give identical with reference to numbering.Therefore, can be with reference to narration above.At figure b) in, be depicted as a axial section at the joint of a central axial position according to Fig. 1 c.Enlarged detailed illustrates this inner joint part 14 and comprises axial clearance S1i and S2i with respect to ball retainer 21.In addition, as seen this ball retainer 21 comprises axial clearance S1o and S2o with respect to socket parts 12.So, the displacement path S1 towards a direction of figure shown in a) is equivalent to S1i and S1o and and figure c) shown in maximum displacement path S2 in the opposite direction be equivalent to S2i and S2o and.When corresponding final position, ball retainer 21 nestles up inner joint part 14 and/or socket parts 12.Total displacement path S as S1 and S2 and obtain, and " S " means inner joint part 14 with respect to the displacement of socket parts 12 from a bonding point to another bonding point.
In Fig. 4 all and those identical parts in Fig. 1 to Fig. 3 all can give identical with reference to numbering.So, can be with reference to narration above.Figure a), b) and c) be equivalent to basically Fig. 3 a), b) and c).Figure b) the Pitch radius PCR from central shaft A to centre of sphere Z of described ball of the joint of expansion also is shown.The design condition scope that ratio at maximum displacement path S=S1+S2 and Pitch radius PCR of the present invention also is shown among the figure is 0.01＜S/PCR＜0.09.
Those identical parts any and in Fig. 1 to Fig. 4 in Fig. 5 all can give identical reference numbering.So, can be with reference to narration above.Be equivalent to shown in Fig. 4 b shown in scheming a).According to figure b) enlarged detail be given in radial clearance CIR and the radial clearance COR between the inner ball surface 23 of the outer spherical surface 25 of ball retainer 21 and socket parts 12 between the inner ball surface 26 of the outer spherical surface 24 of inner joint part 14 and ball retainer 21.The number range that gives described gap among the figure is 0.015＜CIR＜0.20 and 0.015＜COR＜0.20, and described numerical value refers to millimeter.
Those identical parts any and in Fig. 1 to Fig. 5 in Fig. 6 all can give identical reference numbering.So, can be with reference to narration above.Figure is equivalent to shown in Fig. 4 b shown in a), figure b) enlarged detailed then is shown.Figure b) is listed in the radial clearance BO of a raceway, also has the ball 20 in retainer window 22 ball in 16,17
1Axial clearance BC; And the numerical value of the BC that provides is that the numerical value of-0.03＜BC＜0.1 and BO is for-0.03＜BO＜0.08; Described numerical value refers to millimeter.
Figure 7 shows that of the present invention one has six pairs of raceways to 16,17; Thereby 18, a sectional arrangement drawing of the relative track joint of 19 6 balls 20 and a planimetric map.First and second raceways are to alternately around circumference.Can give identical reference with Fig. 1 to identical part shown in Figure 6 and number, can be at this referring to figs. 1 through the narration of Fig. 6.
Figure 8 shows that of the present invention one have eight balls 20 relative track joint run through first raceway to the sectional arrangement drawing of 16,17 A-A and run through the sectional arrangement drawing of second raceway to 18,19 B-B.First and second raceways are to alternately around circumference.Can give identical reference with Fig. 1 to identical part shown in Figure 6 and number, can be at this referring to figs. 1 through the narration of Fig. 6.
Figure 9 shows that the joint according to Fig. 7, opening angle α that its first and second raceway is right and β open towards first direction Ri1 and second direction Ri2 respectively.The relevant details of the raceway center line of ball receway as shown in figure 10 similarly can be with reference to the joint according to Fig. 8.The center line M16 of the first outer ball receway 16 in the shown socket parts 12 comprises: an arc, it has one first radius R 2 and and is positioned center O 2 on the longitudinal shaft A, and described center O 2 has an axial dipole field in the direction towards this base with respect to this central plane E; One has the arc of the continuous connection of small radii R3, has identical axial dipole field in the direction towards this base as the center O 2 of its center O3 such as R2; And the arc with relative radius R1, its center O1 is also promptly having an axial dipole field towards the direction of opening end with respect to this central plane E towards the direction opposite with center O 2, the O3 of the arc with described radius R 2, R3, and its center O1 is positioned one and has outside the circle around center O 2 of radius R 2.As seen from the figure, the center line M17 of ball receway 17 becomes the mirror image symmetry with respect to the center line of outer ball receway 16 about this central plane E in first shown in this inner joint part, just it comprise identical but mirror image symmetry have radius R 2 ', R3 ' and R1 ' around center O 2 ', the arc of O3 ', O1 '.The center line M18 of the second outer ball receway 18 comprises that one has the arc that one first radius R 5 and is positioned the center O 5 on the longitudinal shaft A, and described center O 5 is towards also promptly on the direction of opening end an axial dipole field being arranged with this opposite direction of skew of center O 2 with arc of described radius R 2.Direction towards opening end, be one to have the arc of a relative radius R4 after this has the arc of radius R 5, its center O4 be positioned one have radius R 5 around outside the circle of center O 5 with and comprise the axial dipole field towards this central plane E, this axial dipole field is extended in identical direction.As seen from the figure, in this inner joint part 14 second in the center line M19 of ball receway 19 with respect to second outside the center line M18 of ball receway 18 become the mirror image symmetry, promptly it comprise have radius R 5 ' and R4 ' around center O 5 ', the arc of O4 ' but be the mirror image symmetry with respect to this central plane E.This first outer ball receway 16 and the first interior ball receway 17 form described towards the open opening angle α of first direction Ri1 in this central plane E, ball receway 19 then forms in the opposite direction promptly towards the open opening angle β of direction Ri2 at this central plane in the second outer ball receway 18 and second.When joint of the present invention might be done axial displacement because of retainer of the present invention gap, described opening angle oppositely changed, and joint is then from not having the position transition of axial force to the position with return force.
Term " axial dipole field " is equivalent in meaning with term " axial distance " and term " axial offset " respectively.
Figure 11 to 18 illustrates cardan shaft of the present invention with the form of first universal joint separately, it comprises that one is similar to the relative track joint 11 of described type according to the embodiment of Fig. 7, comprise that further a jack shaft 31 (Figure 11 to 15) and has the jack shaft (Figure 16 to 18) of a unit of integrating 91 that endwisely slips, and is respectively one at last and is second universal joint (Figure 15 to 18) that second universal joint (Figure 11 to 14) and that endwisely slips joint form is a permanent joint form.The parts of first universal joint 11 give identical reference numbering as among the figure formerly.So, can be with reference to narration above.Jack shaft 31,91 connects by a plug-in type and is connected with the parts of first universal joint 11 and second universal joint.The above-mentioned multi-part formula jack shaft with the unit of integrating 91 that endwisely slips that is equally applicable to, the described unit that endwisely slips comprise one have in the axle sleeve part 92 of gear ring 93 and a plug-in type axle journal 94 and the necked part 95 that further has outer shaft gear ring 96, described outer shaft gear ring with described in the meshing an of gear ring 93 in mode in axial sliding.
In described second universal joint, represent that with double-head arrow V1 excitation force imports described second universal joint.In jack shaft 31,91, V2 represents towards the vibration transfer of described first universal joint 11 with another double-head arrow.In the detail drawing relevant with first universal joint 11, one the 3rd double-head arrow V3 refers to the decoupling zero of the vibrational excitation in first universal joint 11 at last, wherein relatively the described inner joint part of track joint does not transmit any big power to described socket parts, described socket parts thereby remain in the vibrationless state.
The ball 20 of the first shown universal joint 11
1, 20
2Represent that with axially reverse power arrow described power arrow symbol is by moving about that axial force causes.
Below, will only can narrate corresponding second universal joint.
Shown in Figure 11 one AAR triadius type joint 41 as described second universal joint, it comprises that one has the socket parts 42 of three guidance raceways 43 that circumferentially distribute, but one has the triadius type type star polygon work 44 of three yokes 45 that circumferentially distribute and remains on sway roller assembly 46 on described three yokes rotationally.Inner joint part 44 can remain in the socket parts 42 and with 46 one-tenth rollings of roller assembly with moving axially and contact, and it can do angular displacement with respect to socket parts 42.
Shown in Figure 12 one GI triadius type joint 51 as described second universal joint, it comprises that the socket parts 52, with three guidance raceways 53 that circumferentially distribute have the triadius type type star polygon work 54 of three yokes 55 that circumferentially distribute and remain on roller 56 on described three yokes rotationally.Inner joint part 54 can remain in the socket parts 52 with moving axially, carries out a rolling motion with roller 56 and can connect with respect to socket parts 52.
Shown in Figure 13 one VL or XL slip joint 61 as described second universal joint, it comprises that one has a longitudinal extension and the socket parts 62, of the outer ball receway 63 that intersects with longitudinal shaft have a longitudinal extension and the inner joint part 64 of the interior ball receway 65 that intersects with longitudinal shaft in the opposite direction, the internal transmission of torque ball 66 that remains in a common plane again by a ball retainer 67 of guidance of the raceway that constitutes of ball receway 63 and interior ball receway 65 outside.This ball retainer 67 comprise one with respect to the axial clearance of inner joint part 64 and outside joint component 62 one in cylindrical system guide face 68 midcourse guidances.Therefore, inner joint part 64 keeps like this so that can axially move and be connected with respect to socket parts 62.
The shown in Figure 14 one DO slip joint 71 as described second universal joint, it comprises that the socket parts 72 and with outer ball receway 73 of a longitudinal extension have the inner joint part 74 of an axially extended interior ball receway 75.The transmission of torque ball 76 that internally guides at the raceway that is made of outer ball receway 73 and interior ball receway 75 remains in a common plane by a ball retainer 77 again.This ball retainer 77 remain in socket parts 72 one in the cylindrical system guide face 78 so that axially movable and can be connected, and remain in the outer spherical system guide face 79 of inner joint part 74 so that connection only.Therefore, inner joint part 74 can move axially and guidance with respect to socket parts 72 with being connected.
Cardan shaft according to Figure 15 shows a cardan joint or a common universal joint 81 as described second universal joint, it comprises that one first end yoke 82 and can be with respect to second end yoke 83 of 90 ° of rotations of described first end yoke, 82 dos, wherein, the latter is connected in the bearing sleeve mode with jack shaft 31.Two joints can hingedly be connected to each other by axle journal crosshead 84 again.The unit that endwisely slips is not shown, but can imagine the part that it is arranged at the blocking of jack shaft 31.
Figure 16 shows that an AC permanent joint as described second universal joint (angle contacting joint), it comprises that the socket parts 102 and with outer ring curved ball raceway 103 have the inner joint part 104 of interior annular curved ball receway 105.The raceway centering of forming by identical outer ball receway 103 and interior ball receway 105 that forms the opening angle that points to described jack shaft, holding the transmission of torque ball 106 that remains in a common plane by a ball retainer 107.Ball retainer 107 keeps and axially is supported on an interior spherical system guide face 108 of socket parts 102 rotationally.Axial displacement between two joints 11,101 can be carried out in the unit 91 that endwisely slips.
Figure 17 shows that a UF permanent joint as described second universal joint (no undercutting joint), it comprises that one has the outer axially inner joint part 114 of axial no undercutting raceway 115 in the socket parts 112 and of no undercutting raceway 113 have, and wherein points in the outer ball receway 113 of opening angle of described jack shaft and the interior ball receway 115 in paired formation and is holding the ball 116 that is remained in the transmitting torque of a common plane by a ball retainer 117.Ball retainer 117 keeps and axially is supported on an interior spherical system guide face 118 of socket parts 112 rotationally.Described joint thereby be a permanent joint is so carry out within the axial displacement between described first universal joint 11 and described second universal joint 111 is endwisely slipping unit 91.
In Figure 18, described second universal joint that provides be a relative track joint 11 ', it provides with the formula that connects of the permanent joint of a no axial displacement possibility in this case.Its parts are as give identical reference numbering under the situation of described first universal joint 11.Described first universal joint 11 and described second universal joint 11 ' between axial displacement can aforesaid mode endwisely slipping and carrying out within the unit 91.
Claims (15)
1. cardan shaft, it comprises one first universal joint, a jack shaft and one second universal joint; Wherein said first universal joint is one to be the synchronous card ball joint (11) of relative track joint form, and described synchronous card ball joint comprises:
One has the socket parts (12) of the first and second outer ball receways (16,18);
One has the inner joint part (14) of ball receways (17,19) in first and second, the wherein said first outer ball receway (16) and the first interior ball receway (17) constitute together first raceway that opens (α) towards a first axle direction Ri1 to ball receway (18) outside (16,17) and described second and the second interior ball receway (19) constitute together open (β) towards one second axial direction Ri2 second raceway to (18,19);
Described raceway within the ball (20) of guidance, the centre of sphere Z of described ball is positioned one on the Pitch radius PCR of a joint center M;
One has the retainer window that distributes along circumferentially, (22) ball retainer, (21), described ball, (20) in described ball retainer, remain in a convenience center plane E and when described joint is crooked, guiding on to point plane in the angle, wherein on the one hand at described socket parts, (12) and described ball retainer, (21) between and on the other hand at described ball retainer, (21) and described inner joint part, (14) all be provided with axial clearance between to allow one at described socket parts, (12) and described inner joint part, (14) S of displacement to axial between
At described first universal joint, the ratio of line shaft between the described Pitch radius PCR of displacement S and described ball (20) is at described joint during in aligned condition, between 0.01 and 0.09 scope.
2. cardan shaft according to claim 1 is characterized in that:
At described first universal joint, the ratio of described line shaft between the described Pitch radius PCR of displacement S and described ball (20) is at described joint during in aligned condition, less than 0.05.
3. cardan shaft according to claim 1 and 2 is characterized in that:
At described first universal joint, when described joint during in aligned condition, during the final position of the described displacement to axial between described socket parts (12) and described inner joint part (14), described first raceway is less than 8 ° to (16,17) or described second raceway to less relatively angle among the opening angle α of (18,19) or the β.
4. cardan shaft according to claim 3 is characterized in that:
At described first universal joint, when described joint during in aligned condition, during one central position of the described displacement to axial between described socket parts (12) and described inner joint part (14), described first raceway is to big or small identical to the opening angle α of (18,19) and β of (16,17) and described second raceway, and two opening angle α and β are all less than 8 °.
5. cardan shaft according to claim 1 is characterized in that:
At described first universal joint, the outside (24) of the inner face (23) of described socket parts (12), described inner joint part (14) and the outside (25) of described ball retainer (21) and inner face (26) are all the surface of spherical part, wherein at the radial clearance COR between described socket parts (12) and the described ball retainer (21) and the radial clearance CIR between described ball retainer (21) and described inner joint part (14) separately between the scope of 0.015mm and 0.20mm.
6. cardan shaft according to claim 1 is characterized in that:
At described first universal joint, the raceway center line M16 of the described first outer ball receway (16) comprises that in central authorities one has radius R 2 and its center O2 and is offset the arc of an axial offset along first direction from the central plane E of described joint, and described raceway center line M16 cumulatively radially inwardly departs from described radius R 2 along first direction after described arc; And the raceway center line M17 of ball receway (17) comprises that in central authorities one has radius R 2 and its center O2 and is offset the arc of an axial offset along second direction from the central plane E of described joint in described first, and described raceway center line M17 cumulatively radially inwardly departs from described radius R 2 along second direction after described arc.
7. cardan shaft according to claim 6 is characterized in that:
At described first universal joint, the raceway center line M16 of the described first outer ball receway (16) comprises that at described first direction one has small radii R3 and the crooked in the same direction and continuous arc that connects aforementioned arc after having the described arc of described radius R 2; And the raceway center line M17 of the described first interior ball receway (17) comprises that in described second direction one has small radii R3 and the crooked in the same direction and continuous arc that connects aforementioned arc after having the described arc of described radius R 2.
8. cardan shaft according to claim 6 is characterized in that:
At described first universal joint, the raceway center line M16 of the described first outer ball receway (16) after having the described arc of described radius R 2, along the cumulative leading thread of described second direction to outwards departing from described radius R 2; And in described first the raceway center line M17 of ball receway (17) after having the described arc of described radius R 2, along the cumulative leading thread of described first direction to outwards departing from described radius R 2.
9. cardan shaft according to claim 8 is characterized in that:
At described first universal joint, the raceway center line M16 of the described first outer ball receway (16) after having the described arc of described radius R 2, described second direction comprise one have radius R 1 and curved section oppositely extend and connect continuously aforementioned arc and center O 1 be positioned one have described radius R 2 around the arc outside the circle of center O 2; And in described first the raceway center line M17 of ball receway (17) after having the described arc of described radius R 2, described first direction comprise one have radius R 1 and curved section oppositely extend and connect continuously aforementioned arc and center O 1 be positioned one have described radius R 2 around the arc outside the circle of center O 2.
10. cardan shaft according to claim 6 is characterized in that:
At described first universal joint, the raceway center line M18 of the described second outer ball receway (18) comprises that in central authorities one has radius R 5 and its center O5 and is offset the arc of an axial offset along second direction from the central plane E of described joint, and described raceway center line M18 cumulatively radially outwards departs from described radius R 5 along described second direction after described arc; The raceway center line M19 of ball receway (19) comprises that in central authorities one has radius R 5 and its center O5 and is offset the arc of an axial offset along first direction from the central plane E of described joint in described second, and described raceway center line M19 cumulatively radially outwards departs from described radius R 5 along described first direction after described arc.
11. cardan shaft according to claim 10 is characterized in that:
At described first universal joint, the raceway center line M18 of the described second outer ball receway (18) after having the described arc of described radius R 5, described second direction comprise one have radius R 4 and curved section oppositely extend and connect continuously aforementioned arc and center O 4 be positioned one have described radius R 5 around the arc outside the circle of center O 5; And in described second the raceway center line M19 of ball receway (19) after having the described arc of described radius R 5, described first direction comprise one have radius R 4 and curved section oppositely extend and connect continuously aforementioned arc and center O 4 be positioned one have described radius R 5 around the arc outside the circle of center O 5.
12. cardan shaft according to claim 1 is characterized in that:
Described second universal joint can be the joint that endwisely slips, and more particularly is one to be the joint that endwisely slips of a triadius type joint (41,51), a VL slip joint or an XL slip joint (61) or DO slip joint (a 71) form.
13. cardan shaft according to claim 1 is characterized in that:
Described second universal joint can a permanent joint form provide, more particularly the form with a cardan joint (81), an AC joint (101), a UF joint (111) or a relative track joint (11) provides.
14. cardan shaft according to claim 1 is characterized in that:
Described jack shaft comprises the unit (91) that endwisely slips.
15. cardan shaft according to claim 1 is characterized in that:
After distortion, the inner ball surface (23) of the described socket parts (12) of described first universal joint is only only hardened by emery wheel preliminary working and sclerosis and described ball receway (16,18) and is ground.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005042910A DE102005042910B4 (en) | 2005-09-08 | 2005-09-08 | Cardan shaft comprising a counter track joint with limited axial displacement |
| DE102005042910.6 | 2005-09-08 | ||
| PCT/EP2006/005991 WO2007028436A1 (en) | 2005-09-08 | 2006-06-22 | Joining comprising a counter path joint with limited axial displacement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101326379A CN101326379A (en) | 2008-12-17 |
| CN101326379B true CN101326379B (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800411549A Active CN101326379B (en) | 2005-09-08 | 2006-06-22 | Joining comprising a counter path joint with limited axial displacement |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4898811B2 (en) |
| CN (1) | CN101326379B (en) |
| BR (1) | BRPI0615627B1 (en) |
| DE (1) | DE102005042910B4 (en) |
| WO (1) | WO2007028436A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007023354B4 (en) * | 2007-05-18 | 2009-10-01 | Gkn Driveline Deutschland Gmbh | Ball synchronized sliding joint with low displacement forces |
| DE102008026063A1 (en) * | 2008-05-30 | 2009-12-10 | Tedrive Holding B.V. (Heerlen) | Tripod joint for cardan shaft of a car and cardan shaft |
| WO2012069093A1 (en) * | 2010-11-26 | 2012-05-31 | Gkn Driveline International Gmbh | Counter track joint with axial displacement range |
| BR112014002555A2 (en) | 2011-08-29 | 2017-03-14 | Gkn Driveline Int Gmbh | constant speed joint in the form of an inverted track joint |
| CN105499914A (en) * | 2015-11-24 | 2016-04-20 | 芜湖天金机械有限公司 | Turning and milling process for universal joint ball shell |
| JP7185003B2 (en) | 2018-07-05 | 2022-12-06 | ゲー カー エヌ ドライブライン インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング | constant velocity joint |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1637309A (en) * | 2003-12-25 | 2005-07-13 | Ntn株式会社 | Fixed constant velocity universal joint |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3721775C2 (en) * | 1987-07-01 | 1995-06-29 | Girguis Sobhy Labib | Constant velocity joint |
| DE4031820C2 (en) * | 1990-10-08 | 1995-07-13 | Gkn Automotive Ag | Constant velocity joint |
| JPH0942304A (en) * | 1995-07-28 | 1997-02-10 | Ntn Corp | Constant velocity universal joint |
| DE19756768C2 (en) * | 1997-12-19 | 2003-03-27 | Gkn Loebro Gmbh | CV shaft with two fixed joints and separate displacement |
| DE10060120B4 (en) * | 2000-12-04 | 2005-12-22 | Gkn Driveline International Gmbh | Ball constant velocity joint as a counter-track joint |
| DE10220715B4 (en) * | 2002-05-10 | 2016-10-13 | Gkn Driveline International Gmbh | Side shaft with a counter track joint with the same orientation of opposite track pairs |
| DE10337612B4 (en) * | 2002-11-15 | 2009-11-05 | Gkn Driveline International Gmbh | Counter track joint with steering angle reversal |
| US6988949B2 (en) * | 2003-11-07 | 2006-01-24 | Gkn Driveline North America, Inc. | Constant velocity joint vent valve |
-
2005
- 2005-09-08 DE DE102005042910A patent/DE102005042910B4/en active Active
-
2006
- 2006-06-22 BR BRPI0615627-4A patent/BRPI0615627B1/en active IP Right Grant
- 2006-06-22 CN CN2006800411549A patent/CN101326379B/en active Active
- 2006-06-22 WO PCT/EP2006/005991 patent/WO2007028436A1/en active Application Filing
- 2006-06-22 JP JP2008529483A patent/JP4898811B2/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1637309A (en) * | 2003-12-25 | 2005-07-13 | Ntn株式会社 | Fixed constant velocity universal joint |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007028436A1 (en) | 2007-03-15 |
| DE102005042910B4 (en) | 2011-08-18 |
| JP2009507196A (en) | 2009-02-19 |
| DE102005042910A1 (en) | 2007-03-22 |
| BRPI0615627A2 (en) | 2012-12-18 |
| CN101326379A (en) | 2008-12-17 |
| JP4898811B2 (en) | 2012-03-21 |
| BRPI0615627B1 (en) | 2018-04-24 |
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