Rolling bearing arrangement, in particular for a switching device for switching a manual transmission

Abstract

A rolling bearing arrangement is provided for a switching device for switching a manual transmission. The rolling bearing arrangement includes at least one rolling bearing having an outer shell, a cage axially displaceable in the outer shell, and a plurality of rolling elements guided by the cage and radially supported on the outer shell. A rod having a switch axis is supported rotatably and axially displaceably by the rolling elements. The rod has an axial stop for securing the cage in a form-fitting manner with vertically aligned rod in an upper position against a downward axial displacement.

Claims

1. A rolling bearing arrangement in a switching device for switching a manual transmission, the roller bearing arrangement comprising: at least one rolling bearing having an outer shell, a cage axially displaceable in the outer shell and a plurality of rolling elements guided by the cage and radially supported on the outer shell; and a rod having a switch axis and supported rotatably and axially displaceably by the rolling elements, wherein the rod has a first axial stop for securing the cage in a form-fitting manner with the rod vertically aligned in an upper position against a downward axial displacement, wherein the outer shell comprises at least one end stop for limiting an axial displacement of the cage and the at least one end stop is configured to axially pass the first axial stop in a reversible manner.

2. The rolling bearing arrangement according to claim 1, further comprising at least one second rolling bearing having a second outer shell, a second cage axially displaceable in the second outer shell, and a plurality of second rolling elements guided by the second cage and radially supported on the second outer shell and rotatably and axially displaceably supporting the rod, wherein the rod has a second axial stop for the form-fitting securing of the second cage with the rod vertically aligned in the upper position against the downward axial displacement.

3. The rolling bearing arrangement according claim 1, wherein the rod comprises a base body with which the first axial stop is integrally configured.

4. The rolling bearing arrangement according to claim 1, wherein the rod comprises a base body having the first axial stop, which is the separately manufactured, is axially fixed thereto.

5. The rolling bearing arrangement according to claim 1, wherein at least one of the rolling elements comprises a spherical metal bearing.

6. The rolling bearing arrangement according to claim 1, wherein the first axial stop comprises an annular stop ring.

7. A switching device for switching a manual transmission of a motor vehicle manual transmission comprises at least one of the rolling bearing arrangement according to claim 1 and a shift cylinder supported by the rolling elements rotatably and axially displaceably on the switch axis of the rolling bearing arrangement.

8. A motor vehicle comprising a manual transmission having a switching device for switching the manual transmission having at least one of the rolling bearing arrangement according to claim 1.

9. A rolling bearing arrangement in a switching device for switching a manual transmission, the roller bearing arrangement comprising: a rod having a base body including a first portion and a second portion; a first axial stop disposed on the base body between the first and second portions; a second axial stop disposed on the base body at an end of the second portion opposite the first axial stop; a first rolling bearing disposed over the first portion of the base body, the first rolling bearing having a first cage retaining a plurality of first rolling elements and a first outer shell surrounding the first cage, wherein the first axial stop secures the first cage against axial displacement in a form-fitting manner with the rod vertically aligned in a first position; a second rolling bearing disposed over the second portion of the base body, the second rolling bearing having a second cage retaining a plurality of second rolling elements and a second outer shell surrounding the second cage, wherein the second axial stop secures the second cage against axial displacement in a form-fitting manner with the rod vertically aligned in the first position, wherein the first outer shell comprises an annular flange extending radially inward to form a first end stop, the first cage is captured between the first axial stop and the first end stop when the rod is in the first position, and the first end stop is configured to axially pass the first axial stop in a reversible manner.

10. The rolling bearing arrangement according to claim 9, wherein the second outer shell comprises an annular flange extending radially inward to form a second end stop, wherein the second cage is captured between the second axial stop and the second end stop when the rod is in the first position.

11. The rolling bearing arrangement according to claim 10, wherein the first end stop is configured to axially pass the first axial stop in a reversible manner.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present disclosure will hereinafter be described in conjunction with the following drawing figures, wherein like numerals denote like elements.

(2) FIG. 1 illustrates a rolling bearing arrangement according to an embodiment of the present disclosure in a perspective half section;

(3) FIG. 2 illustrates a rolling bearing arrangement according to a further embodiment of the present disclosure in FIG. 1 corresponding representation;

(4) FIG. 3 illustrates a switching device having a rolling bearing arrangement according to an embodiment of the present disclosure in an expanded perspective view;

(5) FIG. 4 illustrates an assembly of a rolling bearing arrangement according to an embodiment of the present disclosure;

(6) FIG. 5 illustrates an assembly of a rolling bearing arrangement according to a further embodiment of the present disclosure;

(7) FIG. 6 illustrates an assembly of a rolling bearing arrangement according to a further embodiment of the present disclosure in an expanded view;

(8) FIG. 7 illustrates a rolling bearing arrangement according to an embodiment of the present disclosure with a rod in an axial position;

(9) FIG. 8 shows the rolling bearing arrangement of FIG. 7 with the rod in another axial position; and

(10) FIG. 9 shows the rolling bearing arrangement of FIG. 8 with cages that sit on stops of the rod.

DETAILED DESCRIPTION

(11) The following detailed description is merely exemplary in nature and is not intended to limit the invention or the application and uses of the invention. Furthermore, there is no intention to be bound by any theory presented in the preceding background of the invention or the following detailed description.

(12) FIG. 1 shows a rolling bearing arrangement according to an embodiment of the present disclosure in a perspective half section. A rolling bearing can be seen, which has an outer shell 20, a cage 30 which is arranged axially displaceable in the outer shell 20, and a plurality of rolling elements 4 radially supported on the outer shell 20, guided by the cage 30, and a rod 10, which is rotatably and axially displaceably supported by the rolling elements 4. The rod 10 has an axial stop 11 which secures in a form-fitting manner the cage 30 with vertically aligned rod 10 in an upper position against an axial displacement downwards, as described below with reference to FIGS. 7-9 explained in more detail.

(13) In the embodiment of FIG. 1, the axial stop 11 is integrally configured with a cylindrical base body 15 of the rod 10.

(14) FIG. 2 shows a representation of a rolling bearing arrangement corresponding to FIG. 1 and a further embodiment of the present disclosure. Corresponding features are identified by identical reference numerals, so that reference is made to the description of the embodiment of FIG. 1 and only differences are discussed in the following. In the embodiment of FIG. 2, the partially annular axial stop 12 is manufactured separately and slid radially onto the base body 15 and connected to it, for example, by snapping into a groove 16 (see FIG. 6).

(15) In addition, the rolling bearing arrangement of FIG. 2 except the one (first) rolling bearing with outer shell 20, cage 30 and rolling elements 4, has a second rolling bearing, which corresponds to this first rolling bearing and of which, in FIG. 2, only its outer shell 20 is recognizable.

(16) FIG. 3 shows right a switching device for switching a (motor vehicle) manual transmission having the rolling bearing arrangement of FIG. 2 and a shift or blocker cylinder 100, which is supported rotatably and axially displaceably on the rod of the rolling bearing arrangement in the form of a switch axis 10 of the switching device by the rolling elements 4 and the second rolling elements 4 of this rolling bearing arrangement or its first and second rolling bearings (see also FIGS. 7-9) and left the same switching device having hidden shift or blocker cylinder 100. The shift or blocker cylinder 100 is axially displaced on the switch axis 10 to select different gears and shifting gates, and rotated about the switch axis 10 to engage or disengage selected gears.

(17) FIG. 4 shows an assembly of the rolling bearing arrangement of FIG. 1 according to an embodiment of the present disclosure. As indicated by the assembly arrow, the rod 10 with the axial stop 11 configured integrally with the base body 15 is slid into the rolling elements 4 (see FIG. 1) and is thereby supported rotatably and axially displaceably.

(18) FIG. 5 shows in FIG. 4 corresponding representation of an assembly of a rolling bearing arrangement according to a further embodiment of the present disclosure. Corresponding features are identified by identical reference numerals, so that reference is made to the previous description and only differences are discussed below.

(19) In the embodiment of FIG. 5, as indicated by the assembly arrows, first the base body 15 is slid into the rolling elements 4 (see FIGS. 1, 2) and is thereby supported rotatably and axially displaceably. Subsequently, the separately manufactured, annular axial stop 13 is axially slid onto the base body 15 and connected to it, for example, by shrinking on or shrinking in, latching, welding, soldering, gluing or the like.

(20) FIG. 6 shows assembly of the rolling bearing arrangement of FIG. 2 according to an embodiment of the present disclosure. As indicated by the assembly arrows, the base body 15 is slid into the rolling elements 4, 4 (see FIGS. 2, 7-9) and is thereby supported rotatably and axially displaceably. Subsequently, the separately manufactured, annular axial stop 12 is axially slid onto the base body 15 and connected to it, for example, by shrinking on or shrinking in, latching, welding, soldering, gluing or the like. A further separately manufactured, annular axial stop 13 (see FIGS. 7-9) is axially slid onto the base body 15 and connected to it, for example, by shrinking on or shrinking in, latching, welding, soldering, gluing or the like, such as explained with reference to FIG. 5 and therefore not shown here.

(21) FIGS. 7-9 illustrate a function of the rolling bearing arrangement of FIG. 2. In FIG. 7, the rod 10 is located relative to the outer shells 20, 20 of the two rolling bearings in a lower axial position or vice versa, the (outer shells 20, 20 of the) two rolling bearings or the shift or blocker cylinder 100 relative to the rod 10 in an upper axial position. This may correspond, for example, to a reverse gear path in a motor vehicle transmission.

(22) In FIG. 8, conversely, the rod 10 is located relative to the outer shells 20, 20 of the two rolling bearings in an upper axial position or vice versa, the (outer shells 20, 20 of the) two rolling bearings or the shift or blocker cylinder 100 relative to the rod 10 in a lower axial position. For a motor vehicle transmission, for example, this may correspond to a gear path of the highest gears, for example a fifth and possibly sixth (forward) gear.

(23) By axial displacement of the shift or blocker cylinder 100 on the rod or the switch axis 10, this and analogous further, intermediate paths can thus be selected and in this, the appropriate gears may be engaged and disengaged by rotating the shift or blocking cylinder 100 on or around rod or switch axis 10. In particular as a result of this, but also due to vibrations, the cages 30, 30 in FIG. 8 could sag downwardly due to gravity if the axial stops 12, 13 were not present.

(24) These axial stops 12, 13, however, form-fittingly secure the cages 30, 30 against such a downward axial displacement by seating the cages 30, 30 downwardly on the axial stops 12, 13 in an axial displacement due to gravity, as shown in FIG. 9.

(25) The rolling bearing arrangement of FIG. 1 works analogously in that its integral axial stop 11 form-fittingly secures the cage 30 in an upper position against an axial displacement downward.

(26) As can be seen in particular in FIGS. 1, 2 and schematically with reference to the sequence of FIGS. 7.fwdarw.8, the axial stops 11, 12, 13 can pass end stops 21 or 21 of the outer shells 20, 20, which, however, limit an axial displacement of the cages 30, 30, for example, due to correspondingly larger outer diameters of the cages 30, 30.

(27) Although exemplary embodiments have been explained in the foregoing description, it should be pointed out that a variety of modifications are possible.

(28) For example, in the embodiment of FIGS. 2, 6-9, the second axial stop may also be configured in the form of a partial ring and/or be slid radially. If the base body 15 is slid in from below instead of from above in FIG. 6, the second axial stop can also be configured integrally as explained with reference to FIG. 1.

(29) While at least one exemplary embodiment has been presented in the foregoing detailed description, it should be appreciated that a vast number of variations exist. It should also be appreciated that the exemplary embodiment or exemplary embodiments are only examples, and are not intended to limit the scope, applicability, or configuration of the invention in any way. Rather, the foregoing detailed description will provide those skilled in the art with a convenient road map for implementing an exemplary embodiment as contemplated herein. It should be understood that various changes may be made in the function and arrangement of elements described in an exemplary embodiment without departing from the scope of the invention as set forth in the appended claims.