CN1028665C - Constant velocity universal joint - Google Patents
Constant velocity universal joint Download PDFInfo
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- CN1028665C CN1028665C CN90103893A CN90103893A CN1028665C CN 1028665 C CN1028665 C CN 1028665C CN 90103893 A CN90103893 A CN 90103893A CN 90103893 A CN90103893 A CN 90103893A CN 1028665 C CN1028665 C CN 1028665C
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- ball
- internal connection
- connection spare
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- 230000013011 mating Effects 0.000 claims description 6
- 238000003032 molecular docking Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005242 forging Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007306 turnover 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
- F16D3/2237—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
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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
- F16D2003/22313—Details of the inner part of the core or means for attachment of the core on the shaft
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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
- F16D2300/00—Special features for couplings or clutches
- F16D2300/12—Mounting or assembling
Abstract
A constant velocity universal joint for transmitting driving torque between rotative members, such universal joint including a hub fixed to one of the rotative members and an outer joint member attached to the hub, an inner joint member attached to another one of the rotative members and a ball containing cage positioned between the outer joint member and the inner joint member. The balls are engaged in ball races positioned in the outer joint member and in the inner joint member. The ball races are sloped so as to provide maximum material at the location of highest stress, the major ball races being of the undercut free design.
Description
The present invention relates to a kind of constant velocity turning joint that is used for needs by any use occasion of an angle carry-over moment that changes.More particularly, this invention comprises the universal joint that utilizes many balls one moment to be passed to an external lug part from an internal connection spare.Series of grooves is contained in the inside of external lug part, and they are radially in alignment with the groove of outside a series of complementations, that be positioned at internal connection spare.Externally be provided with an isolating ring between adapter piece and the internal connection spare, in order to during rotating at universal joint to be the ball guiding when all balls traverse in groove.
Prior art has disclosed multiple device, and these devices can be delivered to another root axle from an axle with running torque, and these two axles are that the folder several angle is interconnective.Generally, the matching requirements of most of prior arts is done a large amount of processing to its each part, can assemble satisfactorily and turn round to guarantee device.Therefore, also just make prior art owing to considering that the needed amount of finish of all parts has to the total intensity of device is taked the way of trading off.
People such as Hans-Heinrich Welschof, on April 29th, 1975 U. S. Patent (patent No. is 3879960) that announce, that be entitled as " constant-velocity joint " disclosed a kind of no undercutting (undercut-free) constant-velocity joint.This constant-velocity joint has an external lug part, therein, holds the single ball grooves of looking all to disperse with respect to the central axis of universal joint from opening of external lug part.The all ball grooves that are positioned on the internal connection spare are assembled with respect to the central axis of universal joint.The isolating ring of dependence one between external lug part and internal connection spare makes all balls remain on a mutual separated plane relation.The external lug part is unsuitable for using stamp forging process, because the diameter of its opening is less than the diameter of internal cavities wherein.In addition, because ball grooves is dispersed, (lip) is thinner on the limit of external lug part.Being somebody's turn to do of external lug part approaches the maximum stress district that the district just is arranged in this universal joint, and this point is particularly outstanding when rotation angle is big.
People such as Nobuyuki Otsuka, on February 19th, 1980 U. S. Patent (patent No. 4188803) that announce, that be entitled as " constant velocity turning joint " disclosed a kind of universal joint, it has used an input shaft and an output shaft.Output shaft has the cavity that holds hub, and the end of input shaft is contained in this hub, and input shaft contains an inner piece that links to each other with it.Ball grooves is contained in the inboard of hub and the outside of inner piece.One ball isolating frame is housed between hub and the inner piece.The unique distinction of this ball isolating frame is that its inboard and outer surface contain eccentric ball surface rather than common concentric ball surface.The ball isolating frame is supported in also on the eccentric ball surface.
Werner Krude, disclosed the another kind of universal joint of prior art in the U. S. Patent (patent No. is 4610643) that announce, that be entitled as " rotation constant velocity turning joint " on September 9th, 1986, it has an external lug part, all ball grooves wherein look from the flared end of external lug part and are convergence, and all grooves in the internal connection spare are and disperse.The arrangement of these grooves or inclination are just opposite with the described situation of above-mentioned patent (3879960).The combination of external lug part and axle-hub be separates also and its co-operation together.Utilize welding and undercut (crimping) technology, external lug part and hub are linked together with a cylindrical sleeve.One ball isolating frame supporting element is used for keeping all balls in all grooves, so that all balls are constrained in a side.Ball isolating frame supporting element does not contact the ball surface of external lug part or internal connection spare, and still, as shown in Figure 1, the ball isolating frame contacts with the ball surface 30 at the close center hub place of joint inside.In above-mentioned patent, it is the finger shape plate of inserting with respect to ball that the ball isolating frame contains a series of.This universal joint needs a large amount of processing, and needs to make the instrument of the needed complexity of various parts.
People such as Erich Aucktor, that announce on September 26th, 1978, (patent No. is 4 to be entitled as " constant velocity turning joint ", 116,020) U. S. Patent has disclosed a kind of and the very approaching constant velocity turning joint of the present invention, its shortcoming is an additional device to be set to keep the ball holding device, like this, just increased part.
Main purpose of the present invention provides the minimum universal joint of a kind of required in the mill amount of finish.
The universal joint that it is no undercutting (undercut-free) that another purpose of the present invention provides a kind of its major part.
Another object of the present invention provides a kind of joint structure, and its part is suitable for cold punching forming process.
Still a further object of the present invention is to reduce the outside and the contacted area of internal connection spare of ball isolating frame and universal joint.
The present invention also has another purpose to provide the universal joint that a kind of strength characteristics improves.
Still a further object of the present invention provides a kind of universal joint of assembling and dismantling of being easy to.
The present invention is a kind of constant velocity turning joint that power is passed to described driven shaft between a driven shaft and a live axle from live axle, it comprises: an internal connection spare, it has one first planar ends, the outer spherical surface of isolated second planar ends of one and first planar ends and between first, second planar ends, internal connection spare also has a common central symmetry axes perpendicular to first and second planar ends, with a hole that is positioned at around the axis of symmetry, internal connection spare is connected in driven shaft or live axle; First group of ball race that extends vertically and open along the circle spacing, they are formed on the sphere of internal connection spare; One annular, outer adapter piece round internal connection spare, it has: an end; The end that another is relative; One end face that docks with the flange of hub; One external cylindrical surface; One internal ball surface; One inclination mating face between an end and internal ball surface, internal ball surface extend in fully the inclination mating face with end face that the flange of hub docks between; And, a center hole that limits by internal ball surface and inclination mating face; The external lug part also has a central axis; Second group of ball race that extends vertically and open along the circle spacing, they are formed on the internal ball surface of annular, outer adapter piece, on its each seat ring and the internal connection spare first group extend vertically and in the ball race opened along the circle spacing one of associated aim at mutually; One ball isolating frame, it is arranged between internal connection spare and the annular, outer adapter piece, and has: one with the tight external ball surface of contact mutually, the internal ball surface of annular, outer adapter piece; One with the tight internal ball surface of contact mutually, the external ball surface of internal connection spare, and, one group of hole, their quantity are extended vertically with first and second groups and are equated along the ball base number of turns that the circle spacing opens, and are arranged between external ball surface and the internal ball surface to place each spherical ball; It is the spherical calotte that draws in of an end and another part is the surface of cylndrical surface that second group of ball race of annular, outer adapter piece defines its part, wherein the cylndrical surface part is adjacent to the end face that docks with flange hub the annular, outer adapter piece, and land portions is positioned at one of annular, outer adapter piece end, and the wall thickness between the exterior cylindrical face portion of second group of ball race that extends vertically and open and external lug part along the circle spacing, big in the end of docking of the ratio at one of annular, outer adapter piece end place with the flange of hub, when live axle when driven shaft rotates an angle, the spherical calotte that the spherical ball that wherein is in highest order in the plane that comprises live axle and driven shaft is drawn in to an end along the cylndrical surface part of its corresponding ball race, be rolled to the farthest from the opposed end of annular, outer adapter piece towards an end, and the spherical calotte that the spherical ball of lowest order is drawn in along an end of its corresponding ball race is to the cylndrical surface part, be rolled to the farthest from one of annular, outer adapter piece end towards opposed end, all the other each balls also move along each corresponding ball race.And, a hub, it have one radially inwards flange and have a center cavity that matches with the cylndrical surface part of second group of ball race of annular, outer adapter piece being connected in the relative end of annular, outer adapter piece.
In addition, the present invention also comprises: first group of spline, and they are positioned at the hole of internal connection spare; Comprise one of in driven shaft and the live axle: one has the input shaft of second group of spline at the one end, and first and second groups of splines will link to each other to rotate with it with internal connection spare one of in driven shaft and the live axle; And another root axle in driven shaft and the live axle comprises: an output shaft that forms on the integral part of hub, output shaft have an axis that matches with the central axis of annular, outer adapter piece.
In addition, in the present invention, the retainer device between internal connection spare and annular, outer adapter piece is one to have the annular ball retainer of a center hole and central axis.One group of hole of retainer device is that the diametric(al) along retainer is oppositely arranged in couples, and the line at center, every pair of hole is perpendicular to the central axis of the center hole of retainer device.Each Kong Zhongjun in one of retainer device group hole includes a spherical ball.
Also have, in the present invention, in the internal connection spare first group extends and the ball race opened along the circle spacing vertically, at contiguous hub place, from the radial distance minimum of the central axis of internal connection spare.Every seat ring of first group of ball race that extends vertically and open along the circle spacing by a curved section and always line segment form.In the annular, outer adapter piece second group extends and the ball race opened along the circle spacing vertically, at contiguous hub place, from the radial distance maximum of the central axis of annular, outer joint.Each seat ring of second group of ball race that extends vertically and open along the circle spacing by a curved section and always line segment form.The external ball surface of internal connection spare is total to the center each other with the internal ball surface of external lug part.
Constant velocity turning joint of the present invention according to the said structure composition, compare with above-mentioned prior art, the difference and the advantage of the present invention and above-mentioned universal joint are: the situation of dispersing and assembling of all ball grooves in external lug part and the internal connection spare antithesis, therefore, the free-ended thickness of the external lug part among the present invention increases.In addition, the present invention only utilizes the homocentric sphere surface that is easy to be shaped.In addition, the present invention is without any the undercutting that must have in the hub district.The present invention is because so the ball isolating frame adopts the homocentric sphere surface very simple.In addition, hub and inner moment part have also utilized the homocentric sphere surface.Have, the another improvements of constant velocity turning joint of the present invention are that the present invention can adopt less component again, and, less with the rubbing contact of ball isolating frame.In addition, the invention provides a ball isolating frame that all holes are wherein arranged, this isolating frame fully and each ball tangent.In addition, because universal joint and external lug part have a thick structural sections near its opening end, this section that high capacity is concentrated when rotating just, so. this joint is reliable and durable.The manufacturing of external lug part is fairly simple, and manufacture cost also obviously reduces.
From the appending claims of following description and in conjunction with to as the consulting of the accompanying drawing of the part of specification of the present invention, other purpose of the present invention and advantage will be more readily apparent from, and identical numbering is represented identical part in each accompanying drawing.
Figure 1A is the partial sectional view of the no undercutting external lug part of prior art, and has diagrammatized the situation of the power that the no undercutting constant-velocity joint along with the increase prior art that curves the angle is subjected in ball orbit;
Fig. 1 represents universal joint of the present invention with side elevation in partial section;
Fig. 2 represents to be in universal joint under the angle drive state with side elevation in partial section;
Fig. 3 is the whole hub of expression and the broken section front view of output shaft;
Fig. 4 is " 4-4 " line direction is looked in Fig. 3 the hub and the end elevation of output shaft;
Fig. 5 is the end elevation of external lug part, there is shown a pair of to being positioned at its lip-deep groove;
Fig. 6 is the sectional view along " 6-6 " line among Fig. 5, the curve-like surface of expression ball and isolating frame;
Fig. 7 is the end elevation of internal connection spare, represents a pair of to being positioned at the groove on the internal connection spare outer surface; And
Fig. 8 is the sectional view along " 8-8 " line among Fig. 7, the curve-like surface of expression ball and isolating frame.
The present invention is not limited to be shown in the structure of each part in all accompanying drawings and the details of arrangement, because also available all other modes are implemented the present invention with other embodiment in the scope of claims, in addition, it should also be understood that, here used word and professional term only are used for illustrative purposes, do not have any restriction.
Now consult especially Figure 1A of all accompanying drawings.This figure has represented that with broken section prior art do not have the undercutting constant velocity turning joint, and it can be used for connection and other many purposes of transmission shaft.Graphical representation among the figure is along with the suffered power of increase external lug part that curves the angle.Curve the corner (angle) between the central axis of central axis that (angle) is the external lug part and internal connection spare.This plotted curve is clear to be shown: curve angle and near the suffered power maximum flared end of adapter piece externally in maximum.
Fig. 1 is a partial, partially-cross-sectioned side-elevation view, has represented universal joint of the present invention.Whole device is represented (seeing figure) with numeral 10.For the purpose of illustrating, suppose to have a rotating force or moment to be added to just like on the input shaft 12 shown in the right side of Fig. 1.One output shaft 14 is arranged in the left side of whole device 10.Certainly, the direction of transfer of moment can be opposite with above-mentioned direction.As shown in the figure, the hub 16 of output shaft 14 and the part of the whole that can be used as it links to each other.Hub 16 and output shaft 14 are coaxial along output axis 20.Input axis 18 coincides with output axis 20.Hub 16 has a cylindrical outer surface 22, and it is adjacent to inwards a flange 24 radially.This flange 24 is flat, and perpendicular to output axis 20.Hub 16 has a concave surface by arcuate segment 26, one frusto-conical face sections 28 and a sphere section 30 compositions.Top three sections linked together promptly forms a concave surface, and this concave surface is easy to make with punching press and Forging Technology very much.
Many arc ball races that extends vertically or groove 46 undercutting and the internal ball surface 38 by external lug part 32.The radially outermost distance of each ball race, or center line have a circle segments 48, and this section links to each other with basically a straightway 50.Circle segments 48 has a radius, being centered close on the output axis 20 in the left part of a L of this radius.As shown in Figure 5, all ball races 46 are each other along the diametric(al) setting.Every pair of center line along the relative ball race 46 of diametric(al) is positioned at one and also comprises the plane of exporting axis 20.
One internal connection spare 52 is set in the open cavity by external lug part 32.Internal connection spare 52 is provided with to 18 one-tenth symmetric relations of input axis.Internal connection spare 52 has an interior cylindrical hole 54, and this hole is provided with all splines 56 that extends vertically.Internal connection spare 52 has radially basic flat end 58 and 60 that extend, a left side and right side.Radially outermost surface 62 of internal connection spare 52 is spherical, and this spherical ends at the jointing place with planar ends 58 and 60.
The external ball surface 72 of ball isolating frame 70 is done rotation with the internal ball surface 38 of external lug part 32 and is contacted.Similarly, the internal ball of ball isolating frame 70 surface 74 is done to rotate with the external ball surface 62 of internal connection spare 52 and is contacted.
In by the outside of ball isolating frame 70 and internal ball surface 72 and 74 walls that form, be equipped with the many radially hole or the window 84 of extension.The axis in all holes 84 is by the L point on the input shaft 12.The center line of every axis and ball race 46 and 64 matches, and in other words, the axis in each hole 84 is positioned at a plane that comprises every center line of ball race 46 and 64.
One spherical ball 86 is housed in the boundary in each hole 84, the ball energy is moved along the center line of ball race 46 and 64 simultaneously.
The cylindrical hole 54 of internal connection spare 52 contains one recessed (reentry) groove 90, in order to hold finger-like lock (fingerlock) clasp 92.A plurality of cantilever type jerk-fingers 94 are bitten one on the flange radially 96 of input shaft 12.Like this, finger-like snap close ring 92 just can prevent that input shaft 12 from moving vertically with respect to internal connection spare 52.
Fig. 2 is the partial, partially-cross-sectioned side-elevation view of whole device 10, has represented to be in the universal joint under the drive state of angle.For discuss convenient for the purpose of, input shaft 14, the hub 16 of connection and external lug part 32 are in fixed relation to each other motionless and only rotate.As shown in Figure 2, suppose that input shaft 12 is in a position, its input axis 18 with respect to the output axis 20 of output shaft 14 at an angle.When input shaft 12 moves to a new position, angle, because internal connection spare 52 fixes with respect to input shaft 12, so it also moves past identical angle.When input shaft 12 moves a certain angle, all spherical ball 86 just move, the spherical ball 86 that wherein vertically is in highest order moves right to the farthest, and correspondingly along another ball race 46 and 64 is shifted to the left side along the spherical ball 86 that diametric(al) is in lowest order.Remaining spherical ball 86 is also corresponding to be moved along ball race 46 and 64.Certainly, be positioned on the input axis 18, just can not move along ball race 46 and 64 as a spherical ball 86.Above-mentioned discussion hypothesis input shaft and output shaft 12 and 14 are non-rotary.
When input shaft 12 and a certain angle of internal connection spare 52 rotations, the angle of ball isolating frame 70 rotations is smaller, as shown in Figure 2.Importantly: ball isolating frame 70 always rotates, and makes the axis 98 in hole 84 keep such position, even L point position thereon.So, whole device 10 has just reached the constant speed requirement.
The below spherical ball 86 of observing among Fig. 2 can be found out: ball 86 is always shifted to left side up to leveling off to before the arcuate segment 26 of hub 16 at it.In addition, the lowermost part of ball isolating frame 70 was shifted to the left side always before it has occupied the top of the cavity that is formed by frusto-conical face section 28.Ball isolating frame 70 only with spherical ball 86, the external ball surface 72 of the internal ball of external lug part 32 surface 38 and internal connection spare 32 contacts.
When the inclined surface 100 of the frustum of a cone of input shaft 12 contact external lug parts 32, the angle of input shaft 12 is just moved and is stopped.
Fig. 3 is the whole hub 16 of expression and the side elevation in partial section of output shaft 14.Output shaft 14 can be divided into cylindrical axial direction part 102 and 104, every section spline 106 that contains many vertical alignings along arc shooting.Hub 16 as the extension part of output shaft 14 has one by arcuate segment 26, the internal cavities that truncted cone section 28 and sphere section 30 form.Owing to do not need undercutting during the internal cavities of formation hub 16, it can utilize punching press or contour forging technique to form.
Fig. 4 is the end elevation of the cavity that " 4-4 " line direction is seen from Fig. 3.Its flange 24 represents with plane view, also shows the transversal between all surfaces of the cavity in the above-mentioned hub 16 among the figure.
Fig. 5 is the end elevation of external lug part 32, express on the inner spherical surface 38 that is in external lug part 32, along diametric(al) groove facing each other.As can be seen from the figure, ball race 46 is not a undercutting, and like this, their available punching presses or Forging Technology make.As in making external lug part 32, using sintering process, then needn't be again with metal cutting processing internal ball surface 38.The shape of cross section of ball race 46 is circular, and has the tangentially section of extending in parallel 108 that links with this circle.Although extension 108 is parallel among the figure, if required, they also can be dispersed to input axis 18 slightly.In addition, the arc-shaped cross-section of ball race 46 part can be rendered as non-circular a little, to provide and to contact as line by the spherical ball there.
Fig. 6 is along the sectional view of " 6-6 " hatching line among Fig. 5, shows the curve-like surface of being made up of arc section 48 and straightway 50.Also demonstrate inner spherical surface 38.
Fig. 7 is the end elevation of internal connection spare 52, express a pair of on the outer spherical surface that is positioned at internal connection spare 52, along diametric relative ball race 64.The quantity of ball race 64 equals the quantity of front ball race 46 as shown in Figure 5.Cylindrical hole 54 contains all splines 56 of aiming at input axis 18 vertically.
Fig. 8 is the sectional view along " 8-8 " hatching line among Fig. 7, the curve center line of expression ball race 64 and the outer spherical surface 62 of internal connection spare 52.The technology of the easy processing that the front discussed can be adopted in plane left and right end 58 and 60.
The assembling of whole device 10 of the present invention is foolproof.In addition, the geometrical shape of all assemblies of whole device can allow to use automatic assembling.The limit, left side that makes internal connection spare 52 during assembling earlier is (as shown in Figure 1) up.Then, ball isolating frame 70 is aimed at ground to transferring with one heart and vertically around internal connection spare 52, relative until all holes 84 with the circle segments 66 of ball race 64.Then, all spherical ball 86 are embedded in each hole 84.Along with all spherical ball 86 radially move inwardly, they will touch the circle segments 66 of ball race 64 and keep motionless.Then, external lug part 32 is sleeved on the ball isolating frame 70.Then, make ball isolating frame 70 move to the last position that axially aligns.Like this, all spherical ball 86 is kept not making radially outwards disengaging by all ball races 46.Then, the cylindrical outer surface 22 of hub 16 is moved to cooperate with the inner cylindrical surface 36 of external lug part 32 and in surface 36, maintain static.Technique for fixing can comprise press fit.Welding, or with installing as a kind of snap ring (trip ring) of representing at the 108a place among Fig. 2.This moment or after a while can be inserted into input shaft 12 in the cylindrical hole 54, spline 56 and 58 is slided match.After input shaft 12 inserts fully, the jerk-finger 94 of the clasp 92 that has inserted in advance just and the flange 96 on the input shaft 12 match, make this axle be locked to its final position.
Between whole device 10 on-stream periods, applied a moment on the input shaft 12, the internal connection spare 52 that it is connected with spline rotates.Like this, rely on and the contacting of ball race 64, moment passes on all spherical ball 86 around internal connection spare 52.By ball race 46, all spherical ball 86 pass to external lug part 32 with moment again.Because the external lug part is the flange 24 that is not connected in hub 16 rotatably, so hub 16 is along with its whole output shaft that connects 14 rotation.
When input and output axis 18 and 20 is aligned with each other respectively, between whole device 10 on-stream periods, all spherical ball 86 will remain on a position of ball race 46 and 64.Because all spherical ball are positioned at the center of ball race 46 and 64, stress distributes preferably by external lug part 32 and internal connection spare 52.
When input shaft 12 and input axis 18 thereof with respect to output shaft 14 and 20 one-tenths in axis of output thereof just like 45 ° angle position or when curving 45 °, all spherical ball 86 just no longer slide on around the single figures of importing axis 18 one.During whole device 10 rotations one turn over, spherical ball 86 with traversing on almost seat ring 46 and 64 whole length.Because spherical ball 86 is installed to such an extent that make them can not produce horizontal moving with respect to ball isolating frame 70, so, ball isolating frame 70 is rotation on its outside and inner spherical surface 72 and 74 not only, and, when input axis 18 with respect to an axis of ordering by L when shifting left to the right side, this ball isolating frame also must rotate, and it is punctual to have only when input and output axis 18 and 20 pairs, and the spin axis of ball isolating frame 70 is just perpendicular to input axis 18.The frequency and the size of the variation of the angle that ball isolating frame 70 is represented with label 110 in the size of its axis rotation and frequency are decided by as Fig. 2.When whole device 10 curves when turning round under the situation of angle in maximum, on the internal surface of the circle segments 48 of contiguous external lug part 32 ends 44, produce a maximum load.In Fig. 2, express this maximum load point with " 112 ".Because the thickness maximum at external lug part 32 44 places in the end is so be able to take to put the high load that 112 places cause in maximum load.Also have, the increase of total cross section at external lug part 32 44 places in the end makes end 44 be reduced along the elongation of circumference or circumferential direction.The life-span of whole device is prolonged the circumferential extension that reduces and serviceability improves.
Although but the present invention has made detailed description to each required details of a practical operation structure as far as possible by embodiment, but above specifically described device usefulness for illustrative purposes only, and only otherwise leave other structural type of the spirit and scope of the present invention that limit by appended claims, also reflect many new features of the present invention, this point is understandable.
Claims (11)
1, a kind ofly between a driven shaft and a live axle power is passed to the constant velocity turning joint of described driven shaft from described live axle, it comprises:
One internal connection spare, it has one first planar ends, one and the outer spherical surface of isolated second planar ends of described first planar ends and between described first, second planar ends, described internal connection spare also has a common central symmetry axes perpendicular to described first and second planar ends, with a hole that is positioned at around the described axis of symmetry, described internal connection spare is connected in described driven shaft or live axle;
First group of ball race that extends vertically and open along the circle spacing, they are formed on the described sphere of described internal connection spare;
One annular, outer adapter piece round described internal connection spare, it has: an end; The end that another is relative; One end face that docks with the flange of hub; One external cylindrical surface; One internal ball surface; One inclination mating face between a described end and described internal ball surface, described internal ball surface extend between described inclination mating face and described and the end face that the flange of hub docks fully; And, a center hole that limits by described internal ball surface and described inclination mating face; Described external lug part also has a central axis;
Second group of ball race that extends vertically and open along the circle spacing, they are formed on the described internal ball surface of described annular, outer adapter piece, aim at mutually for one of associated in the described first group of ball race that extends vertically and open along the circle spacing on its each seat ring and the described internal connection spare;
One ball isolating frame, it is arranged between described internal connection spare and the described annular, outer adapter piece, and has: one with the tight external ball surface of contact mutually, the described internal ball surface of described annular, outer adapter piece; One with the tight internal ball surface of contact mutually, the described external ball surface of described internal connection spare, and, one group of hole, their quantity is extended vertically with described first and second groups and is equated along the ball base number of turns that the circle spacing opens, and is arranged between described external ball surface and the described internal ball surface to place each described spherical ball;
It is the spherical calotte that draws in of an end and another part is the surface of cylndrical surface that second group of ball race of described annular, outer adapter piece defines its part, wherein said cylndrical surface part is adjacent to the end face that the flange of the described and hub of described annular, outer adapter piece docks, and described land portions is positioned at a described end of described annular, outer adapter piece, and, wall thickness between the exterior cylindrical face portion of described second group of ball race that extends vertically and open and described external lug body spare along the circle spacing, big in described end of docking of the ratio at the described end place of described annular, outer adapter piece with the flange of hub, when live axle when driven shaft rotates an angle, the spherical calotte that the spherical ball that wherein is in highest order in the plane that comprises live axle and driven shaft is drawn in to a described end along the described cylndrical surface part of its corresponding ball race, be rolled to the farthest from the described opposed end of described annular, outer adapter piece towards a described end, and the spherical calotte that the spherical ball of lowest order is drawn in along the described end of its corresponding ball race is to described cylndrical surface part, be rolled to the farthest from a described end of described annular, outer adapter piece towards described opposed end, all the other each balls also move along corresponding ball race separately; And
One hub, it have one radially inwards flange and have a center cavity that matches with the described cylndrical surface part of described second group of ball race of described annular, outer adapter piece being connected in the described relative end of described annular, outer adapter piece.
2, constant velocity turning joint as claimed in claim 1 is characterized in that, also comprises:
First group of spline, they are positioned at the described hole of described internal connection spare;
Comprise one of in described driven shaft and the live axle: one has the input shaft of second group of spline at the one end, and described first and second groups of splines will link to each other to rotate with it with described internal connection spare one of in driven shaft and the live axle; And,
Described another root axle in described driven shaft and the live axle comprises: an output shaft that forms on the integral part of described hub, described output shaft have an axis that matches with the central axis of described annular, outer adapter piece.
3, constant velocity turning joint as claimed in claim 1 is characterized in that, the described retainer device between described internal connection spare and described annular, outer adapter piece is one to have the annular ball retainer of a center hole and central axis.
4, constant velocity turning joint as claimed in claim 3 is characterized in that, the quantity in described one group of hole of described retainer device is even number.
5, constant velocity turning joint as claimed in claim 4, it is characterized in that, described one group of hole of described retainer device is that the diametric(al) along retainer is oppositely arranged in couples, and the line at center, every pair of hole is perpendicular to the described central axis of the described center hole of described retainer device.
6, constant velocity turning joint as claimed in claim 1 is characterized in that, each Kong Zhongjun in described one group of hole of described retainer device includes a described spherical ball.
7, constant velocity turning joint as claimed in claim 1, it is characterized in that, described first group of ball race that extends vertically and open along the circle spacing in the described internal connection spare is at contiguous described hub place, from the radial distance minimum of the central axis of described internal connection spare.
8, constant velocity turning joint as claimed in claim 7 is characterized in that, every seat ring of described first group of ball race that extends vertically and open along the circle spacing by a curved section and always line segment form.
9, constant velocity turning joint as claimed in claim 1, it is characterized in that, described second group of ball race that extends vertically and open along the circle spacing in the described annular, outer adapter piece is at contiguous described hub place, from the radial distance maximum of the central axis of described annular, outer joint.
10, constant velocity turning joint as claimed in claim 9 is characterized in that, each seat ring of described second group of ball race that extends vertically and open along the circle spacing by a curved section and always line segment form.
11, constant velocity turning joint as claimed in claim 1 is characterized in that, the described external ball surface of described internal connection spare is total to the center each other with the described inner surface of described external lug part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38483689A | 1989-07-25 | 1989-07-25 | |
| US384,836 | 1989-07-25 | ||
| US07/384,836 | 1989-07-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1049050A CN1049050A (en) | 1991-02-06 |
| CN1028665C true CN1028665C (en) | 1995-05-31 |
Family
ID=23518959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90103893A Expired - Lifetime CN1028665C (en) | 1989-07-25 | 1990-05-23 | Constant velocity universal joint |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0484420A4 (en) |
| JP (1) | JPH05501905A (en) |
| KR (1) | KR920704031A (en) |
| CN (1) | CN1028665C (en) |
| AU (1) | AU644806B2 (en) |
| BR (1) | BR9007553A (en) |
| CA (1) | CA2016894A1 (en) |
| ES (1) | ES2024838A6 (en) |
| WO (1) | WO1991001453A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419293C (en) * | 2002-03-14 | 2008-09-17 | 韩国德尔福汽车系统公司 | Ball-and-socket head for driving axle of vehicle |
| CN101278137B (en) * | 2005-10-05 | 2011-09-21 | 轴造型工程公司 | Constant velocity ball joint |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004116666A (en) | 2002-09-26 | 2004-04-15 | Ntn Corp | Fixed type constant velocity universal joint and manufacturing method for the same |
| DE10337612B4 (en) * | 2002-11-15 | 2009-11-05 | Gkn Driveline International Gmbh | Counter track joint with steering angle reversal |
| JP2006258170A (en) * | 2005-03-16 | 2006-09-28 | Ntn Corp | Fixed type constant velocity universal joint |
| JP4833169B2 (en) * | 2007-08-21 | 2011-12-07 | 株式会社リコー | Constant velocity joint and image forming apparatus |
| US8414406B2 (en) * | 2010-07-19 | 2013-04-09 | Dana Automotive Systems Group, Llc | Constant velocity joint assembly and method of securing a shaft to the assembly |
| CN102661326A (en) * | 2012-05-07 | 2012-09-12 | 大连橡胶塑料机械股份有限公司 | Universal rotating sleeve device |
| CN102767577B (en) * | 2012-07-11 | 2015-04-01 | 南京冠盛汽配有限公司 | Low-vibration automatic-sliding compensation combined spline universal joint |
| CN103738685B (en) * | 2013-12-17 | 2016-03-02 | 徐工集团凯宫重工南京有限公司 | A kind of shield screw conveyer driving universal connector |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1665280A (en) * | 1927-04-02 | 1928-04-10 | Alfred H Rzeppa | Universal joint |
| US1916442A (en) * | 1929-08-21 | 1933-07-04 | Alfred H Rzeppa | Universal joint |
| US1975758A (en) * | 1933-09-25 | 1934-10-02 | Bernard K Stuber | Universal joint |
| US2309939A (en) * | 1939-12-09 | 1943-02-02 | Adiel Y Dodge | Universal joint |
| US2322570A (en) * | 1941-12-26 | 1943-06-22 | Adiel Y Dodge | Universal joint |
| US3324682A (en) * | 1965-09-24 | 1967-06-13 | Dana Corp | Ball type constant velocity universal joint |
| US3541809A (en) * | 1969-03-06 | 1970-11-24 | Gen Motors Corp | Universal joint cage |
| DE2252827C3 (en) * | 1972-10-27 | 1976-01-08 | Loehr & Bromkamp Gmbh, 6050 Offenbach | Constant velocity joint |
| DD122842A5 (en) * | 1975-05-22 | 1976-11-05 | ||
| JPS5622026Y2 (en) * | 1977-12-16 | 1981-05-25 | ||
| JPS5572921A (en) * | 1978-11-28 | 1980-06-02 | Honda Motor Co Ltd | Outer wheel of equal-velocity universal joint |
| DE3114290C2 (en) * | 1981-04-09 | 1984-04-19 | Löhr & Bromkamp GmbH, 6050 Offenbach | "Constant velocity swivel" |
| DE3209596C2 (en) * | 1982-03-17 | 1985-10-03 | Uni-Cardan Ag, 5200 Siegburg | Constant velocity swivel |
| US4756640A (en) * | 1983-08-19 | 1988-07-12 | Gkn Automotive Components Inc. | Axial retaining member |
| GB8716180D0 (en) * | 1987-07-09 | 1987-08-12 | Spicer Hardy Ltd | Outer member for universal joint |
| DE3739867A1 (en) * | 1987-11-25 | 1989-06-08 | Uni Cardan Ag | CV DRIVE JOINT |
-
1990
- 1990-05-16 CA CA002016894A patent/CA2016894A1/en not_active Abandoned
- 1990-05-23 CN CN90103893A patent/CN1028665C/en not_active Expired - Lifetime
- 1990-06-07 ES ES9001580A patent/ES2024838A6/en not_active Expired - Lifetime
- 1990-06-22 AU AU60611/90A patent/AU644806B2/en not_active Ceased
- 1990-06-22 KR KR1019920700167A patent/KR920704031A/en not_active Application Discontinuation
- 1990-06-22 EP EP19900911767 patent/EP0484420A4/en not_active Withdrawn
- 1990-06-22 WO PCT/US1990/003654 patent/WO1991001453A1/en not_active Application Discontinuation
- 1990-06-22 BR BR909007553A patent/BR9007553A/en not_active IP Right Cessation
- 1990-06-22 JP JP2510988A patent/JPH05501905A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419293C (en) * | 2002-03-14 | 2008-09-17 | 韩国德尔福汽车系统公司 | Ball-and-socket head for driving axle of vehicle |
| CN101278137B (en) * | 2005-10-05 | 2011-09-21 | 轴造型工程公司 | Constant velocity ball joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05501905A (en) | 1993-04-08 |
| AU6061190A (en) | 1991-02-22 |
| EP0484420A4 (en) | 1992-09-09 |
| EP0484420A1 (en) | 1992-05-13 |
| KR920704031A (en) | 1992-12-19 |
| AU644806B2 (en) | 1993-12-23 |
| CA2016894A1 (en) | 1991-01-25 |
| CN1049050A (en) | 1991-02-06 |
| BR9007553A (en) | 1992-06-23 |
| ES2024838A6 (en) | 1992-03-01 |
| WO1991001453A1 (en) | 1991-02-07 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |