EP3676113A1 - Zentralgelenk für einen dreipunktlenker - Google Patents
Zentralgelenk für einen dreipunktlenkerInfo
- Publication number
- EP3676113A1 EP3676113A1 EP18749317.6A EP18749317A EP3676113A1 EP 3676113 A1 EP3676113 A1 EP 3676113A1 EP 18749317 A EP18749317 A EP 18749317A EP 3676113 A1 EP3676113 A1 EP 3676113A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- captive
- central joint
- joint
- central
- axle connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/005—Ball joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/008—Attaching arms to unsprung part of vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/02—Attaching arms to sprung part of vehicle
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0604—Construction of the male part
- F16C11/0609—Construction of the male part made from two or more parts
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0642—Special features of the plug or cover on the blind end of the socket
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/30—Rigid axle suspensions
- B60G2200/314—Rigid axle suspensions with longitudinally arranged arms articulated on the axle
- B60G2200/315—Rigid axle suspensions with longitudinally arranged arms articulated on the axle at least one of the arms having an A or V shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/416—Ball or spherical joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/45—Stops limiting travel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/124—Constructional features of arms the arm having triangular or Y-shape, e.g. wishbone
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein
Definitions
- the invention relates to central joint for a three-point link and a three-point link with such a central joint according to the preambles of the independent claims.
- Axle suspensions of commercial vehicles for example for industrial goods or passenger transport, often have rear axles, which are designed as rigid axles.
- Such rigid axles can be guided by a three-point link, which is arranged above the rigid axle in an upper link level.
- Such a three-point link has two, an angle enclosing each other and converging at a first end of the three-point link in a first bearing point link arms.
- the central joint is assigned to the three-point link and designed as a ball joint.
- the two other ends of the three-point link are connected via a respective joint, such as a molecular joint, to a vehicle frame.
- the central joint allows roll movements, ie rotational movements about the vehicle's longitudinal axis, as well as compression and rebound movements of the rigid axle.
- drive and braking torques are introduced into the three-point link via the central joint, if the rigid axle is designed as a drive axle.
- a captive securing a central joint which is designed as a crossbar, which is referred to as a stopper element.
- the central joint has a ball joint and is connected to a rigid axle.
- the cross bar is oriented exclusively in a vehicle transverse direction; So only in a single spatial direction. In this way, although a clearance is created by the collisions of the cross bar are prevented with adjacent components at low height of the central joint, especially for larger inputs and / or rebound movements of the rigid axle. However, this is at the expense of security against a separation of the central joint when the crossbar is used as a stop after a dissolution of the connection between an inner ring and an outer ring of the ball joint.
- the object of the invention is to provide a central joint with a captive, which provides the same in case of failure of the central joint increased security against separation.
- the invention accordingly provides a central joint for a three-point link.
- the central joint has a housing which is rotatably supported by a ball joint and pivotally mounted relative to an axle connection of the central joint.
- the central joint has a captive securing device acting as a stop, which extends perpendicular to the center axis of the axle connection and prevents separation of housing and axle connection in the event of failure of the ball joint.
- the captive device extends perpendicular to the center axis of the axle connection effectively in two spatial directions.
- the housing and the axle connection are slidingly connected via the ball joint, the housing preferably enclosing the ball joint at least in an undeflected zero position of the central joint.
- the ball joint has an inner part and an inner part fitting surrounding outer part.
- the inner part may be formed solid or annular and has a convex lateral surface which is formed as a spherical zone, wherein the spherical zone preferably extends at least substantially symmetrically to an equator of the inner part.
- the outer part which functions as a bearing shell, is fixed in particular in the housing. It is ring-shaped and has a concave inner peripheral surface which is formed in a shape corresponding to the convex spherical zone of the inner part.
- the concave inner peripheral surface extends analogously to the inner part of the ball joint preferably at least substantially symmetrically to an equator of the outer part.
- the outer part and the inner part of the ball joint may each be formed in one or more parts.
- the inner part of the ball joint is preferably formed as a separate component; However, it can also be an integral part of the axle connection, so be formed integrally with the Achsanitati.
- the inner part and the outer part exist as well as the axle connection and the captive made of an iron material, in particular of steel.
- the outer part may alternatively be formed of a plastic material.
- the axle connection is suitable for connecting the central joint to a rigid axle body of a rigid axle, wherein the axle connection in the installed state in the vehicle is rigidly connected to the rigid axle body.
- a failure of the ball joint is present in particular when the convex lateral surface of the inner part and / or concave inner peripheral surface of the outer part, for example, by increased dry friction due to lack of lubrication, wear so much that the previously described positive connection between the inner part and the outer part of the ball joint is destroyed and the outer part can thereby separate from the inner part.
- Such a separation of inner part and outer part can also be the result of an abuse load acting on an already severely worn central joint, caused for example by brisk driving over a curb.
- the anti-loss device provides a stop that reliably prevents separation of the housing and the axis connection.
- the captive is supported directly or indirectly on the housing or on parts of the ball joint.
- the central axis of the axle connection in the installed state in the vehicle extends in a vehicle vertical direction.
- the center axis of the axle connection can also extend at an acute angle of, for example, 10 degrees to the vehicle vertical direction.
- the center axis of the axle connection is congruent with the central axis of the central joint.
- the ball joint is arranged in the non-deflected zero position of the central joint rotationally symmetrical to the central axis of the axle connection and rotationally symmetrical to the central axis of the central joint.
- the captive perpendicular to the central axis of the axle connection extends not only in terms of volume in two spatial directions, but in these two Spacing in two directions in space is expressly not meant in connection with the present invention that the entire captive protection may extend exclusively in the two spatial directions described above perpendicular to the central axis of the axle connection
- the two spatial directions according to the present invention are preferably aligned at right angles to one another.
- the two spatial directions are preferably the vehicle longitudinal direction and the vehicle relative to the installed state of the central joint ugquerides.
- the aligned in the other spatial direction part of the captive provides an additional backup reserve to a passage of the captive through to effectively prevent the housing.
- the captive is formed symmetrically with respect to a plane extending through the central axis of the axle connection.
- the captive can be formed symmetrically with respect to a plane which extends through the central axis of the axle connection and extending in the vehicle longitudinal direction.
- the captive starting from the central axis of the axle connection would extend at least still in the direction of travel or against the direction of travel.
- the captive In case of failure of the ball joint and the simultaneous action of particularly high rolling forces on the captive would be at least in the direction of travel or against the direction extending part of the captive then represent the aforementioned backup reserve against a separation of the central joint.
- the captive is formed symmetrically with respect to a plurality of planes extending through the central axis of the axle connection. These multiple levels extend in particular in the vehicle longitudinal direction and in the vehicle transverse direction. Accordingly, the captive can be designed, for example, cross-shaped and thus provide for all conceivable loads effective protection against separation of the central joint, regardless of whether on the captive rolling forces and / or spring or rebound movements forces and / or braking torques and / or drive torques act. If the captive is cross-shaped, the arms of this cross can all be the same length, opposite equal length or different lengths. The latter embodiment may be useful, for example, if cross-sections of the housing and / or the ball joint, which must pass the captive before a separation of the central joint, deviate from a circular shape.
- anti-loss device symmetrically with respect to more than two planes, as described above, for example in a star shape.
- Such embodiments provide a particularly effective protection against separation of the central joint, when superimposed loads, for example caused by rolling forces and superimposed braking forces, act on the captive and the line of action resulting from the superimposed loads force neither exactly in the vehicle longitudinal direction nor extends exactly in the vehicle transverse direction ,
- the captive is formed flat.
- a perpendicular to the central axis of the Achsanitati surface formed captive has the advantage that at partially acting in a certain force application point on the captive forces, for example, caused by a particularly strong rolling motion of a vehicle body to the right side of the vehicle, adjacent to the force application point existing area shares act supporting and thus help prevent damage to the captive in the force application point.
- Flat trained Verlier Klien can be performed for example as a hexagon or as an octagon and have in addition to the aforementioned Supporting effect the additional advantage that they are also well suited for receiving resulting forces as described above.
- the captive is rotationally symmetrical.
- the installation of the captive can be simplified because no alignment is required.
- a rotationally symmetrical captive can be made relatively cheap, for example by automatic turning.
- the rotationally symmetrical captive securing device is in particular dish-shaped or disk-shaped and can be produced favorably due to its rotational symmetry, for example by automatic turning. But non-cutting production processes such as cold extrusion or forging are also possible.
- surfaces of the captive which act as a stop surfaces in the event of imminent separation of the central joint due to failure of the ball joint, arranged at least substantially in a plane which extends perpendicular to the central axis of the axle connection.
- the height of the central joint can be kept low.
- the stop surfaces when viewed in a section or in any sections through the central axis of the axle, in itself straight, whereby the manufacturing cost is kept low.
- the stop surfaces may also be formed circumferentially and thus combined to form a continuous stop surface.
- This continuous abutment surface may be formed as a circular ring surface or a truncated cone lateral surface, which is compared with the previously described plane which extends perpendicular to the central axis of the axle connection, only slightly obliquely and thus lies substantially in the aforementioned plane.
- areas of the captive securing device which act as abutment surfaces in case of imminent separation of the central joint as a result of failure of the ball joint may be arranged at least partially outside a plane which extends perpendicular to the center axis of the axle connection.
- These stop surfaces can, when viewed in a section or in any section through the central axis of the axle connection, be flat or curved in itself. Curved stop surfaces may be formed such that they are after a successful impact and then rolling or buckling or jounce the rigid axle on surfaces of the housing and / or the ball joint quasi pass.
- the captive is detachably connected to the axle connection.
- the captive can be replaced with little effort, for example, if it has come due to a failure of the ball joint used and thereby damaged.
- the captive is connected by a single connection element to the axle connection.
- This connecting element is arranged in particular in the middle of the captive to have a uniform load when the captive is used.
- a connection element is to be understood in particular to mean an element which is intended to establish a connection between the captive securing device and the axle connection by means of a force and / or positive connection.
- the connection is formed in particular only by the connecting element or by the connecting element and an additional securing element as a captive connection.
- the captive against the axis connection is positively fixed perpendicular to the central axis of the axle connection, for example, by a centering approach the axle connection, which is embraced by the captive form-locking.
- the connecting element has a threaded portion which extends in the direction of the central axis of the axle connection and through which the captive is pulled to the axle connection and clamped against it.
- the connecting element may be formed, for example, as a hexagon screw or as a hexagon socket screw.
- the one connecting element is formed integrally with the captive or with the Achsanitati. In this way, the number of components to be mounted and thus the assembly costs can be reduced.
- the captive and the Achsanitati are connected by a radial press connection.
- the Radialpressitati is designed as a serrated connection, wherein the serration is preferably introduced into a bore of the captive.
- the radial compression connection may be designed as a shrink-fit connection.
- the radial press connection is secured by a securing element, in particular an axial securing element such as a securing ring, against removal of the captive securing in the direction of the central axis of the axle connection.
- the captive is inextricably linked to the axle connection.
- the captive can be materially connected to the axle connection, for example by a welded joint or an adhesive bond.
- the captive is integrally formed with the Achsanitati, the Achsanitati is formed in this case in particular in several parts to allow assembly.
- the one-piece design of the captive with the Achsanitati a particularly stable connection is created to avoid separation of Achsanitati and housing with security after a failure of the central joint.
- the housing has a housing opening towards the axle connection, which is out of round, in particular elliptical.
- the housing opening is adapted to the space required for the maximum deflections of the housing relative to the axle connection.
- the non-circular, in particular elliptical, shape results because the maximum possible deflections of Housing are usually directional.
- the maximum possible Auswinkelungen are based on the mounting position in the vehicle, especially in the vehicle longitudinal direction greater than in the vehicle transverse direction. This is due to the fact that the maximum possible roll angle are usually smaller than the deflections caused by compression and rebound of the live axle. Therefore, the housing opening, in particular in the vehicle longitudinal direction to a greater extent than in the vehicle transverse direction.
- the longitudinal sides of the elliptical housing opening which are aligned in the vehicle longitudinal direction preferably have a spacing from each other which is smaller than the extension of the rotationally symmetrical captive securing device perpendicular to the center line of the axle connection.
- the housing has at least one internal franking, can dive into the outer regions of the captive with large Auswinkelungen the central joint.
- the height of the central joint can be kept low even when using a captive, which extends perpendicular to the central axis of the axle connection in two spatial directions and, for example, is rotationally symmetrical.
- the at least one franking based on the non-deflected zero position of the central joint, in particular on the opposite side of the axle connection embedded in an inner annular surface of the housing, which extends at least substantially perpendicular to the central axis of the axle.
- the at least one franking is shaped in such a way that no contact or even collision between the captive securing device and the housing can occur in the case of any possible deflection of the central joint.
- the housing can have a plurality of individual, trough-shaped clearances on the inside, whose position is matched to direction-dependent maximum deflections of the central joint. These several individual frankings are arranged in pairs diametrically opposite one another in particular.
- the individual, trough-shaped frankings can also be designed as a coherent, three-dimensional franking, which is designed in a form-corresponding manner to an imaginary envelope, which satisfies the essential envelops the total required movement space for all possible states of motion of the captive safety device.
- the housing preferably has a single franking, which is trench-like and at the same time annular in circumference.
- a flange plate of the axle connection has at least one franking, into which outer areas of the housing can dive in the case of large deflections of the central joint.
- This embodiment also contributes to the fact that the height of the central joint can be kept low.
- the flange plate may also have a plurality of individual, trough-shaped clearances or only a trench-like and at the same time circular circumferential trained franking.
- the other design possibilities of the at least one franking in the flange plate are analogous to the at least one internal franking of the housing.
- a dome or a pin of the axle connection at least one franking, in which, especially in large Auswinkelungen the central joint, outer portions of the housing and / or outer portions of a bearing shell of the ball joint can dive.
- particularly large deflections of the housing relative to the axle connection can be realized, depending on the direction, for example, +/- 25 degrees, starting from the undeflected zero position of the central joint, can be.
- the axle connection is made in one piece and consists of the flange plate and the integrally formed therewith dome. From a pin to be spoken when the axle connection is made in two parts and is formed from the flange plate and the rigidly connected pin.
- the central axes of the dome and the pin are each congruent with the central axis of the axle connection.
- the dome or pin may also have a plurality of individual, trough-shaped clearances or only a single franking, as a trench-like and at the same time the dome or the pin annular circumferential constriction is formed.
- Such an annular encircling franking is in particular rotationally symmetrical and, for example, designed similar to an inner lateral surface of a torus, preferably with rounded transitions to the dome or the journal. If there are several individual frankings, these are likewise arranged, in particular, in pairs diametrically opposite one another and form, for example, a sidecut of the dome or the pin.
- the other design options of at least one franking of the dome or the pin are also analogous to those of at least one internal franking of the housing.
- the at least one franking of the dome or of the journal is only so far pronounced that the remaining residual cross section of the dome or of the journal can still safely absorb the forces that occur maximally in the central joint.
- the invention further relates to a three-point link with a central joint as described above, wherein the three-point link is designed as a Achs Equipmentslenker for guiding a rigid axle, in particular a rigid axle of a commercial vehicle.
- the three-point link has two, an angle einlenkende and converging at a first end of the three-point link in a first bearing point link arms.
- the first bearing point of the three-point link can be connected via the central joint to a rigid axle body of the rigid axle.
- the other two ends of the three-point link are connectable to a vehicle frame via one respective guide joint, for example a molecular joint.
- Fig. 1 is a perspective view of a suspension arrangement according to the prior art
- FIG. 2 is a sectional view according to the section A - A in FIG. 6, showing a central joint according to a first embodiment of the invention
- FIG. 3 shows a sectional view of the central joint according to FIG. 2 in a first, extremely angled position
- FIGS. 2 and 3 shows a sectional view of the central joint according to FIGS. 2 and 3 in a second, extremely angled position
- FIG. 5 is a sectional view of the central joint according to FIGS. 2 to 4 in a third, extremely angled position in accordance with the section line B - B indicated in FIG. 6;
- FIG. 6 shows a sectional view of the central joint according to FIGS. 2 to 5 and according to the sectional profile C - C indicated in FIG. 2;
- FIG. 7 is a perspective view obliquely from above of the central joint according to FIGS. 2 to 6; FIG.
- FIG. 8 shows a sectional view analogous to FIG. 2 of a central joint according to a second embodiment of the invention
- FIG. 9 shows a sectional view analogous to FIG. 2 of a central joint according to a third embodiment of the invention.
- Fig. 10 in a sectional view analogous to Figure 2, a central joint according to a fourth embodiment of the invention and
- Fig. 11 in a perspective view obliquely from above a three-point link according to the invention.
- FIG. 1 shows a chassis arrangement 1 with a drawn drive axle, which is designed as a rigid axle and has a rigid axle body 2.
- a drawn drive axle which is designed as a rigid axle and has a rigid axle body 2.
- the rigid axle is arranged behind a cross member 3 extending in a vehicle transverse direction y and per vehicle side of a support 4 extending substantially in a vehicle vertical direction z.
- the upper link level, the rigid axle of a V-shaped spread and substantially in the vehicle longitudinal direction x extending Achs arrangement required to the vehicle longitudinal direction x extending Achs arrangement slenker pulled, which is designed as a three-point link 5.
- the three-point link 5 is formed symmetrically with respect to a plane which is spanned by the vehicle longitudinal direction x and the vehicle vertical direction z, and has two molecular joints, via which it is connected to the cross member 3.
- the three-point link 5 has a central joint 11 for the pivotable and pivotable connection of the three-point link 5 to the
- the rigid axle by two in the vehicle transverse direction y parallel to each other, each vehicle outside arranged and pulled in the vehicle longitudinal direction x trailing arm 6 is pulled.
- the trailing arms 6 are each connected at one end to the rigid axle body 2 and at the other end to a lower force introduction region 7 of one of the two supports 4.
- the end regions of the trailing arms 6 are each opposite to the lower force introduction region 7 and the rigid axle body 2 around a vehicle transverse direction y horrre- tilting pivot axis swivel.
- the chassis assembly 1 has per vehicle side in each case a longitudinal member 9, on which the Starrachs redesign 2 is supported by air springs 12.
- the two longitudinal members 9 extend parallel to one another in the vehicle longitudinal direction x and, together with the cross member 3, form part of a vehicle frame 10.
- vehicle longitudinal direction x, vehicle transverse direction y and vehicle vertical direction z are used analogously to FIG.
- Fig. 2 shows a central joint 20 for a three-point link 470 in a non-deflected zero position, which also represents the mounting position in an unloaded commercial vehicle.
- the central joint 20 has a pre-angle ⁇ in the manner of a crank, which means that a shaft 21 of the central joint 20 relative to the horizontal forms an acute angle, which in this embodiment is 10 degrees.
- the horizontal lies in a plane which is spanned by the vehicle longitudinal direction x and the vehicle transverse direction y and in the present case extends parallel to a footprint of the commercial vehicle.
- the central joint 20 has a housing 22, which is formed integrally with the shaft 21, but has no pre-angle, but is aligned horizontally.
- the housing 22 is rotatably supported by a ball joint 23 and pivotally mounted relative to an axle connection 24 of the central joint 20.
- the ball joint 20 has a captive securing device 25 acting as a stop, which extends perpendicularly to a central axis 26 of the axle connection 24 and, in the event of failure of the ball joint 23, prevents separation of the housing 22 and axle connection 24.
- the captive 25 extends perpendicular to the central axis 26 of the axle 24 effectively in two spatial directions, namely in the vehicle longitudinal direction x and in the vehicle transverse direction y.
- the captive 25 is plate-shaped and extends rotationally symmetrical about the central axis 26 of the axle 24.
- the central axis 26 of the axle 24 is also the central axis of the central joint 20.
- the central joint 20 is shown cut, the sectional plane through the vehicle longitudinal direction x and the vehicle vertical direction z is spanned and at the same time passes through the central axis 26 of the axle connection 24. With respect to this sectional plane, the central joint 20 is mirror-symmetrical.
- the captive 25 is connected by a single connecting element, which is designed as a hexagon screw 27, rigidly and at the same time detachably connected to a dome 28 of the axle connection 24.
- the hexagon screw 27, which presses the captive 25 against an end face of the mandrel 28, is screwed into a centrally arranged internal thread of the mandrel 28.
- the dome 28 has a cylindrical centering projection, which is received by a shape-corresponding, pocket-shaped recess of the captive 25.
- the ball joint 23 has an inner part designed as an inner ring 29 and an inner part 29 fittingly enclosing the outer part, which is designed as an outer ring 30.
- the inner ring 29 is solid and has a convex lateral surface, which is formed as a spherical zone, which extends symmetrically to an equator of the inner ring 29.
- the outer ring 30, which functions as a bearing shell, is axially fixed in the housing 22, one end by a locking ring and the other by a collar-like shoulder of the housing 22.
- the outer ring 30 is annular and has a concave inner peripheral surface which corresponds in shape to the convex spherical zone of the inner ring 29 is formed.
- the captive 25 provides a stop that prevents separation of the housing 22 and axle connection 24.
- the captive 25 is supported directly or indirectly on the inner ring 29 of the ball joint 23, wherein the indirect support is present when the captive 25 rests on the retaining ring.
- Fig. 3 shows the central joint 20 in a first extremely angled position, which is present when a rigid axle of the commercial vehicle is fully rebounded and the central joint 20 is not understandknelt at the same time by a superimposed rolling motion.
- the Auswinkelung of the housing 22 relative to the horizontal should be referred to below as Federauswinkelung ß, because it comes from the compression and rebound of the rigid axle.
- the Federauswinkelung ß is a Pivoting of the housing 22 about a vehicle transverse axis, which in the present case is 20 degrees.
- the angulation of the shaft 21 relative to the horizontal is due to the pre-angle ⁇ of the shaft 21 of 10 degrees to the horizontal a total of 30 degrees.
- the housing 22 has an internal franking 32, based on the non-deflected zero position of the central joint 20, on the axle connection 24 opposite side is inserted into an inner annular surface of the housing 22.
- the annular surface extends in the zero position of the central joint 20 perpendicular to the central axis 26 of the Achsanitati 24.
- the franking 32 is trench-like and extends annularly circumferentially within the annular surface, so that outer areas of the plate-shaped captive 25 can dip. In this case, even at maximum spring deflection, there is no contact between the outer regions of the captive securing device 25 and the franking 32, at least as long as the ball joint 23 is intact.
- the dome 28 of the axle connection 24 has an annular encircling franking 33 into which outer regions of the housing 22 and the outer race 30 acting as a bearing shell of the ball joint 23 are immersed in the present extreme Federauswinkelung ß.
- Fig. 4 shows the central joint 20 in a second extremely angled position, which is present when the rigid axle is compressed maximum and the central joint 20 is not additionally refinedknelt by a superimposed rolling motion.
- the Federauswinkelung ß is presently also 20 degrees, the deflection of the shaft 21 relative to the horizontal due to the Vorwinkelung ⁇ of the shaft 21 is only 10 degrees.
- the explanations in connection with FIGS. 3 and 4 make it clear that the pre-angle ⁇ of the shank 21 serves to achieve the maximum possible spring deflection ⁇ of the central joint 20, which, based on the undeflected zero position of the central joint 20, is the amount When springing the rigid axle are just as large as the rebound.
- the dome 28 in the present case is not inclined, but rather extends at right angles to the horizontal and to a flange plate 34 which is formed integrally with the dome 28.
- the flange plate 34 and the dome 28 form To enable the illustrated, extreme Federauswinkelung ß, the flange plate 34 has a dome 28 annular encircling franking 35 which is formed as an annular groove and allows immersion of outer regions of the housing 22.
- the clearances 32, 33 and 35 contribute to the fact that the overall height of the central joint 20 is comparatively low.
- FIG. 5 shows the central joint 20 in a third, extremely angled position, in which the housing 22 and the shafts 21 integrally connected thereto are aligned obliquely to the flange connection 24 as a result of a roll angle Y, which in the present case is 10 degrees.
- the roll angle ⁇ is a pivoting of the housing 22 about a vehicle longitudinal axis extending in the vehicle longitudinal direction x.
- the central joint 20 is shown in its installed position.
- the Wankauswinkelung ⁇ of the housing 22 is due to a pivoting of a vehicle body about the vehicle longitudinal axis.
- the pivoting can for example come about through cornering, in which although the vehicle body tends to curve outside, but not the rigid axle and the rigidly connected axle connection 24.
- the sectional plane is in Fig.
- the housing 22 has, toward the flange connection 24 or toward the flange plate 34, a housing opening 36 which is elliptical in shape and has a smaller extension in the vehicle transverse direction y than in the vehicle longitudinal direction x (see FIG. 2).
- the elliptical shape of the housing opening 36 is due to the fact that the housing opening 36 should always be kept as small as possible for reasons of stability.
- the maximum Federauswinkelache ß with present +/- 20 degrees are greater than the maximum Wankauswinkelmaschine present with +/- 10 degrees results in the elliptical shape of the housing opening 36.
- the housing opening 36 thus provides an additional safeguard against a separation of the housing 22 and the flange connection 24, which becomes effective if the outer ring 30 should become disintegrated as a result of wear, for example due to abrasive wear.
- FIG. 6 clearly shows that the circular outline 38, shown as a dashed line, of the captive 25 is larger than the elliptically shaped outline 37 of the housing opening 36 shown as a solid line.
- some peripheral lines are hidden in FIG extend concentrically to the dome 28, which is cut in the region of the rotationally symmetrical franking 33.
- a circumferential line separating the inner ring 29 from the outer ring 30 of the ball joint 23 is shown.
- the sectional representation according to FIG. 5 is based only on the sectional profile B - B shown in FIG. 6, because the central joint 20 is deflected in FIG. 5 and not in FIG. 6.
- the rotation-symmetrical and at the same time plate-shaped design of the captive 25 is clearly visible in Fig. 7, as well as the hexagon screw 27 through which the captive 25 is rigidly connected to the dome 28.
- the locking ring with which the outer ring 30 of the ball joint 23 is fixed in the housing 22.
- the locking ring has a circumferential interruption to be able to compress it for insertion into the housing 22 can. This is done with a pair of pliers which engage in two holes arranged adjacent to the interruption, with only one of the two holes being visible.
- the flange plate 34 is rectangular and has in each of its four corners a through hole for attachment of the flange plate 34 to the rigid axle.
- Clearly visible is also formed as a ring trench franking 35 in the flange plate 34, wherein the franking 35 is arranged concentrically to the dome 28.
- FIG. 8 shows a central joint 120 in which a captive securing device 125 is rigidly connected to a dome 128 of an axle connection 124 by a radial press connection.
- the Radialpressitati is designed as a serrated connection with a serration, wherein the serration is introduced into a bore of the captive 125.
- the bore is centrally introduced into the rotationally symmetrical captive 125 and is penetrated in the assembled state by a journal projection 151 of the mandrel 128.
- the journal projection 151 acts as a connecting element.
- a securing element which is designed as a securing ring 150, constitutes an axial securing device and prevents removal of the captive securing device 125 in the direction of a center axis 126 of the axle connection 124.
- the mode of operation of the captive securing device 125 is analogous to the mode of operation described in connection with FIGS. 2 to 7 Loss prevention 25.
- a captive securing device 225 of a central joint 220 is rigidly fastened to a dome 228 of an axle connection 224 by a single connecting element 227.
- the captive 225 is integrally formed with the connecting element 227, wherein the connecting element 227 is formed as a threaded pin which is screwed into a front-side blind hole of the dome 228.
- the captive securing device 225 has a centrally arranged hexagonal recess on the front side.
- the mode of operation of the captive 225 is also analogous to the mode of operation of the captive 25 described in connection with Figures 2 to 7.
- Fig. 10 shows a central joint 320 with a captive 325, which is permanently connected to an axle connection 324.
- the non-detachable connection is due to the fact that the captive 325 is integrally formed with a pin 360 of the axle connection 324.
- the axle connection 324 itself is in this variant formed in two parts and consists of a flange plate 334 with the pin 360 is rigidly connected via a conical seat. In this case, the conical seat is biased by a nut in the axial direction of the pin 360. For this reason, the pin 360 in the assembled state acts like the above-described Dom 28, 128 and 228.
- the flange plate 334 has no franking analogous to the above-described franking 35.
- the captive 325 is supported on an inner peripheral surface of a housing 322 of the central joint 320.
- the mode of operation of the captive securing device 325 is essentially analogous to the mode of operation of the captive securing device 25 described in conjunction with FIGS. 2 to 7.
- the housing 322 has a housing opening towards the flange plate 334, which, however, is round. If the housing opening had a non-circular, for example elliptical, outline, as described above, assembly of the ball joint 323 would not be possible.
- the pin 360 has a circular encircling franking 333, which is rotationally symmetrical and in which, in the case of large deflections of the central joint 320, outer regions of the housing 322 can dip.
- V-shaped three-point link 470 has two tubular link arms 472, which are arranged at an angle with each other and converge in the central joint 20.
- the link arms 472 are each rigidly connected to one of the two shafts 21 of the central joint 20.
- Each of the two link arms 472 is rigidly connected at its free end to a guide joint, which is in each case designed as a molecular joint 471.
- the three-point link 470 can be connected to a vehicle frame and via the flange plate 34 of the axle connection 24 to a rigid axle.
- the three-point link 470 is designed as an axle guide arm for guiding a rigid axle.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017214963.9A DE102017214963A1 (de) | 2017-08-28 | 2017-08-28 | Zentralgelenk für einen Dreipunktlenker |
| PCT/EP2018/070082 WO2019042661A1 (de) | 2017-08-28 | 2018-07-25 | Zentralgelenk für einen dreipunktlenker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3676113A1 true EP3676113A1 (de) | 2020-07-08 |
Family
ID=63079895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18749317.6A Withdrawn EP3676113A1 (de) | 2017-08-28 | 2018-07-25 | Zentralgelenk für einen dreipunktlenker |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US11345202B2 (de) |
| EP (1) | EP3676113A1 (de) |
| CN (1) | CN111032376B (de) |
| BR (1) | BR112019028296B1 (de) |
| DE (1) | DE102017214963A1 (de) |
| RU (1) | RU2767114C2 (de) |
| WO (1) | WO2019042661A1 (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112019013958A2 (pt) * | 2017-01-06 | 2020-02-11 | Robert Bosch Gmbh | Junta esférica com conjunto de soquete esférico de travamento |
| DE102017213564A1 (de) * | 2017-08-04 | 2019-02-07 | Zf Friedrichshafen Ag | Dreipunktlenker und Herstellungsverfahren für einen Dreipunktlenker |
| DE102017222579A1 (de) * | 2017-12-13 | 2019-06-13 | Schäfer MWN GmbH | Verfahren zum Herstellen eines Bauelements und Bauelement |
| DE102019206435A1 (de) * | 2019-05-06 | 2020-11-12 | Schäfer MWN GmbH | Mehrpunktlenker für ein Fahrwerk eines Fahrzeugs |
| DE102019206436A1 (de) * | 2019-05-06 | 2020-11-12 | Schäfer MWN GmbH | Mehrpunktlenker für ein Fahrwerk eines Fahrzeugs |
| DE102019219830A1 (de) * | 2019-12-17 | 2021-06-17 | Zf Friedrichshafen Ag | Dreipunktlenker |
| US11938770B2 (en) * | 2020-02-11 | 2024-03-26 | Richard Mellick Zock | Shock absorber mounting assembly |
| US11938771B2 (en) * | 2020-02-11 | 2024-03-26 | Richard Mellick Zock | Shock absorber mounting assembly |
| DE102020210979A1 (de) * | 2020-08-31 | 2022-03-03 | Zf Friedrichshafen Ag | Zentralgelenkvorrichtung für Fahrwerkskomponenten |
| JP7198871B2 (ja) * | 2021-05-28 | 2023-01-04 | 株式会社バンダイ | 模型部品、及び関節構造 |
| US12523244B2 (en) * | 2021-10-28 | 2026-01-13 | Honeywell International Inc. | Locking positioning systems |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1809703A (en) * | 1928-10-26 | 1931-06-09 | Thompson Prod Inc | Ball joint connection |
| GB621449A (en) * | 1947-02-26 | 1949-04-08 | Victor Prati | Improvements in vehicle suspensions |
| US4712940A (en) * | 1985-04-23 | 1987-12-15 | Trw Inc. | Joint assembly |
| US4986689A (en) * | 1988-01-11 | 1991-01-22 | Trw Inc. | Ball joint |
| GB2326190A (en) | 1997-06-14 | 1998-12-16 | Ford Motor Co | A ball joint |
| US5833383A (en) * | 1997-07-23 | 1998-11-10 | Avm, Inc. | Ball socket connector |
| DE10352408A1 (de) * | 2003-11-10 | 2005-07-14 | Volkswagen Ag | Kugelverschiebegelenk mit geschrägten Kugellaufbahnen |
| SE528801C2 (sv) | 2005-04-12 | 2007-02-20 | Kongsberg Automotive Asa | Förbindningsanordning för en fordonsram och en hjulaxel |
| DE102006043930B4 (de) * | 2006-09-14 | 2009-08-13 | Zf Friedrichshafen Ag | Kugelgelenk |
| DE202008001325U1 (de) * | 2008-01-29 | 2008-04-03 | Edscha Ag | Kugelgelenkvorrichtung |
| EP2110577B1 (de) * | 2008-04-15 | 2020-07-15 | Campagnolo S.R.L. | Gelenkstift für Fahrradketten und diesbezügliche Kette |
| DE102008040212A1 (de) * | 2008-07-07 | 2010-01-14 | Zf Friedrichshafen Ag | Radaufhängung für ein Fahrzeug |
| ES2536703T3 (es) * | 2009-06-30 | 2015-05-27 | Trw Automotive Gmbh | Articulación esférica con fuelle de sellado |
| RU90017U1 (ru) * | 2009-08-17 | 2009-12-27 | Общество С Ограниченной Ответственностью "Научно-Производственное Объединение "Ростар" | V-образная реактивная штанга (варианты) |
| US8851785B1 (en) * | 2009-11-17 | 2014-10-07 | Trw Automotive U.S. Llc | Ball joint |
| DE102012223609A1 (de) * | 2012-12-18 | 2014-06-18 | Zf Friedrichshafen Ag | Gelenkeinrichtung für ein Kraftfahrzeug |
| CN106170631B (zh) * | 2013-11-06 | 2019-10-18 | 罗拉轴承美国股份有限公司 | 具有锚定构件的轴承 |
| US10527089B2 (en) * | 2016-10-31 | 2020-01-07 | Mevotech Lp | Directional bearing for ball joint |
| US10668781B2 (en) * | 2018-01-31 | 2020-06-02 | Honda Motor Co., Ltd. | Vehicle suspension system including a ball joint assembly |
-
2017
- 2017-08-28 DE DE102017214963.9A patent/DE102017214963A1/de active Pending
-
2018
- 2018-07-25 EP EP18749317.6A patent/EP3676113A1/de not_active Withdrawn
- 2018-07-25 BR BR112019028296-3A patent/BR112019028296B1/pt active IP Right Grant
- 2018-07-25 US US16/641,020 patent/US11345202B2/en active Active
- 2018-07-25 CN CN201880055244.6A patent/CN111032376B/zh active Active
- 2018-07-25 RU RU2020111723A patent/RU2767114C2/ru active
- 2018-07-25 WO PCT/EP2018/070082 patent/WO2019042661A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| RU2020111723A (ru) | 2021-09-30 |
| BR112019028296B1 (pt) | 2023-11-28 |
| DE102017214963A1 (de) | 2019-02-28 |
| RU2767114C2 (ru) | 2022-03-16 |
| WO2019042661A1 (de) | 2019-03-07 |
| BR112019028296A2 (pt) | 2020-07-14 |
| US11345202B2 (en) | 2022-05-31 |
| CN111032376B (zh) | 2023-06-20 |
| RU2020111723A3 (de) | 2021-10-22 |
| CN111032376A (zh) | 2020-04-17 |
| US20200307333A1 (en) | 2020-10-01 |
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