SE543773C2

SE543773C2 - A coupling sleeve with means for restricting axial movement

Info

Publication number: SE543773C2
Application number: SE1950763A
Authority: SE
Inventors: Paolo Fornaseri
Original assignee: Scania Cv Ab
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2021-07-20
Also published as: SE1950763A1; DE102020003225A1; DE102020003225B4

Abstract

The invention relates to a coupling sleeve (20) for connecting a first component (12) and a second component (14), the coupling sleeve (20) comprising a first spline arrangement (300); and a second spline arrangement (400); wherein the coupling sleeve (20) is configured to be coupled with external splines (13) of the first component (12) via the first spline arrangement (300) and to be selectively coupled with external splines (15) of the second component (14) via the second spline arrangement (400), the coupling sleeve (20) being configured to be rotatably arranged around a rotational axis (A), the coupling sleeve (20) being configured to be axially moveable along the rotational axis (A), the coupling sleeve (20) comprising: a stop section (24) arranged at the second spline arrangement (400), wherein the stop section (24) is configured to interact with the external splines (13) of the first component (12), to restrict axial movement of the coupling sleeve (20).

Description

A coupling sleeve. *x t*:"f:\*t::r?ï::::::f~'^:t? ~:\*i~“:¿>“ï¿;r:>“?*fr::“\;* :rïrïï f: .ff/a $~wv æ-wx \\»§<§~É~\\>$É<~\~Q egviøgﬁ <~\\-»ww_\\\\\\~_\\\\\:än :ku-än šksmšzü wšmu :ëšïxškäïaazäïu\ TECHNICAL FIELD The present invention relates to a coupling sleeve for connecting a firstcomponent and a second component. The invention also relates to atransmission arrangement comprising such a coupling sleeve, and a vehicle comprising such a transmission arrangement.

BACKGROUND ln transmissions, coupling sleeves are often used in order to connected tworotatable components and thereby transfer torque between the two components.The coupling sleeve may for example be arranged to connect a shaft and a gearwheel, two different shafts, or two gear wheels. ln one position, the couplingsleeve is only connected to one of the components and rotates together withthat component. ln another position, the coupling sleeve is connected to bothcomponents and thereby connects the components. Coupling sleeves aretypically axially displaced between the different positions by means of shift forksor other actuators. ln order to prevent that the coupling sleeve is axiallydisplaced too far, the transmission typically comprises some sort of axial stop.As an example, the axial displacement may be restricted by the shift fork beingconnected to the transmission housing. This solution is common but may causeundesired noise due to physical impact between the shift fork and the housing.This type of solution is disclosed in document JPH 11173414 A.

Document WO 2010014100 A1 discloses another solution where a transmissioncomprises a shift collar slidingly mounted onto a shift hub between an engagedposition and a disengaged position. The shift collar comprises a plurality of teeth configured to engage with teeth of the hub. The shift collar comprises a feature for limiting the axial motion of a gear relative the shift collar when the gear andthe shift collar are engaged.SUMMARY OF THE INVENTION Despite known solutions in the field, it would be desirable to develop a couplingsleeve, which alleviates or at least reduces drawbacks with prior art.

An object of the present invention is thus to achieve an advantageous couplingsleeve for connecting a first and a second component, which coupling sleeveprovides restricted axial movement in relation to the first and second componentand reduces noise occurring in association with stopping the axial movement ofthe coupling sleeve. Another object of the present invention is to achieve anadvantageous transmission arrangement, which provides restricted axialmovement of a coupling sleeve and reduces noise occurring in association with stopping the axial movement of the coupling sleeve.

The herein mentioned objects are achieved by a coupling sleeve, a transmissionarrangement comprising such a coupling sleeve and a vehicle comprising such a transmission arrangement, according to the independent claims.

Hence, according to an aspect of the present invention a coupling sleeve forconnecting a first component and a second component is provided, the couplingsleeve comprising: a first internal spline arrangement at a first end of thecoupling sleeve; and a second internal spline arrangement arranged at a secondend of the coupling sleeve; wherein the coupling sleeve is configured to becoupled with external splines of the first component via the first splinearrangement and to be selectively coupled with external splines of the secondcomponent via the second spline arrangement, the coupling sleeve beingconfigured to be rotatably arranged around a rotational axis, wherein thecoupling sleeve is configured to be axially moveable along the rotational axis.

The coupling sleeve further comprises a stop section i W» w -\~\\~>\- “MÅ -\v\:3v\-\ 1~---\-~\~*w.-*~~\~M> *A+ *w-EN-*w-u- :v\ *ak-W ~*“".> v\ NM. . ~~ x- .~\.«\,~. .\.\ \._\.-..» ~ .~ oc. 4.. .çyv-...yn .w x ~~ .~»\.-.~ w .~ \\.t.~\._\.- N .~\.~\-~~\.~ i .\. \ to restrict axial movement of the coupling sleeve.

According to another aspect of the invention, a transmission arrangement isprovided, the transmission arrangement comprising: a first rotatable component;and a second rotatable component; wherein the transmission arrangementfurther comprises a coupling sleeve as disclosed herein for connecting the firstrotatable component and the second rotatable component.

According to yet another aspect of the invention, a vehicle comprising a transmission arrangement as mentioned above is provided.

Coupling sleeves for connecting two components are typically controllable tomove between a first end position and a second end position. ln the first endposition, the coupling sleeve may be coupled to a first component and in thesecond end position, the coupling sleeve may be coupled to the first componentand a second component, thereby connecting the two components. Thecoupling sleeve may be axially moved by an actuator, such as a shift fork orsimilar. lt is crucial that the coupling sleeve stops at the end positions and thusthat the coupling sleeve is not moved too far in relation to the two components.One common solution in a gearbox/transmission is to connect the actuator/shiftfork with the gearbox housing, so that the axial displacement of the shift fork andthus the coupling sleeve is restricted by the housing. Such solutions may,however, cause some noise when the shift fork and thus the coupling sleevereaches any of the end positions. By the coupling sleeve according to thepresent invention, the stop section restricting the axial movement of the couplingsleeve is integrated in the coupling sleeve. Thus, the coupling sleeve interactingwith the external splines of the first component will define at least one endposition of the coupling sleeve. The stop section being integrated in the couplingsleeve results in that the interacting surfaces are enclosed by the coupling sleeve and any sound arising when the interacting surfaces meet will beencapsulated. This way, stopping movement of the coupling sleeve will notcause as much noise. Furthermore, by having a stop section in association withthe second sp|ine arrangement of the coupling sleeve, a less complex solutionis achieved and manufacturing is facilitated.

Further objects, advantages and novel features of the present invention willbecome apparent to one skilled in the art from the following details, and also byputting the invention into practice. Whereas the invention is described below, itshould be noted that it is not restricted to the specific details described.Specialists having access to the teachings herein will recognise furtherapplications, modifications and incorporations within other fields, which arewithin the scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS For fuller understanding of the present invention and further objects andadvantages of it, the detailed description set out below should be read togetherwith the accompanying drawings, in which the same reference notations denote similar items in the various drawings, and in which: Figure 1 schematically illustrates a vehicle according to anexample; Figure 2a-d schematically illustrate a coupling sleeve according toexamples; Figure 3a-b schematically illustrate a coupling sleeve according toexamples; and Figure 4 schematically illustrates a transmission arrangement according to an example.

DETAILED DESCRIPTION OF THE DRAWINGS According to an aspect of the present disclosure, a coupling sleeve forconnecting a first component and a second component is provided. The couplingsleeve comprises a first internal sp|ine arrangement at a first end of the couplingsleeve; and a second internal sp|ine arrangement at a second end of thecoupling sleeve; wherein the coupling sleeve is configured to be coupled withexternal splines of the first component via the first sp|ine arrangement and to beselectively coupled with external splines of the second component via thesecond sp|ine arrangement, the coupling sleeve being configured to be rotatablyarranged around a rotational axis, wherein the coupling sleeve is configured tobe axially moveable along the rotational axis. The coupling sleeve furthercomprises a stop section arranged in association with the second sp|inearrangement configured to interact with the external splines of the first component, to restrict axial movement of the coupling sleeve.

The coupling sleeve may be configured to be arranged coaxially with the firstcomponent and the second component. The first component and the secondcomponent are thus arranged coaxially. Thus, the first component and thesecond component may be rotatable around the rotational axis. The couplingsleeve being configured to be axially movable along the rotational axis meansthat the coupling sleeve is configured to be axially displaced. The couplingsleeve may thus be axially displaced in relation to the first component and thesecond component. The coupling sleeve may be configured to be continuouslycoupled with the first component by means of the first internal splines. Thus, thecoupling sleeve may be configured to be axially moveable, so that the firstinternal splines always are constantly engaged with the external splines of thefirst component and so that the second internal splines are selectively engaged with the external splines of the second component. The coupling sleeve may be configured to be axially moveable between an engaged position where thecoupling sleeve is coupled to the first and the second component, and adisengaged position where the coupling sleeve is only coupled to the first component.

The coupling sleeve may comprise an essentially cylindrical body including thefirst end and the second end. The cylindrical body may have an outercircumference and an inner circumference. The inner circumference of thebody/coupling sleeve may be configured to surround at least part of the firstcomponent. The body may extend longitudinally between the first end and thesecond end. The first spline arrangement is arranged internally of the body, atthe first end of the body and the second spline arrangement is arrangedinternally of the body, at the second end of the body. The first splinearrangement may extend along a part of the longitudinal extension of the body.The second spline arrangement may extend along a part of the longitudinalextension of the body. Typically, the first spline arrangement and the secondspline arrangement are configured so that there is a distance in the longitudinaldirection between the first spline arrangement and the second spline arrangement.

The first spline arrangement may comprise a plurality of first splines and thesecond spline arrangement may comprise a plurality of second splines. The firstsplines and the second splines may respectively be symmetrically and evenlyarranged along the inner circumference of the body. Between two adjacent firstsplines a first gap is formed, in which an external spline of the first component is to be fitted. The first spline arrangement thus comprises a plurality of first gaps.

Between two adjacent second splines a second gap is formed, in which anexternal spline of the second component is to be fitted. The second splinearrangement thus comprises a plurality of second gaps.

The first spline arrangement and the second spline arrangement may bedifferently configured. Thus, the geometry of the first splines may be different from the geometry of the second splines. The second splines may have atapered shape. Thus, the second splines may protrude from the body and maybe tapering in direction towards the centre axis/rotational axis. Each of the firstand second splines may extend radially between a base and a top. The base isconnected to the body of the coupling sleeve, and the top faces the rotationa|axis. The distance between the base and the top may be defined as the heightof the sp|ine. The height of a sp|ine may correspond to the depth of the adjacentgaps. For the second splines, the base is larger than the top. The second splinesmay thus have a cross-sectional shape of a trapezoid, preferably an isoscelestrapezoid. According to another example, the second splines may comprise apointed end facing the first sp|ine arrangement. Similarly, the second splinesmay comprise a pointed end facing in direction of the second component, andthus facing away from the coupling sleeve. The first splines may have anessentially rectangular or square cross-sectional shape. lt is to be understoodthat even though certain examples of configurations of the first and secondsplines are presented in the present disclosure, the first splines and the secondsplines may have different geometries and shapes.

The stop section may be configured to interact with a surface of the externalsplines of the first component, the surface of the external splines of the firstcomponent extending perpendicularly to the rotationa| axis. The stop sectionmay be configured to abut at least one external sp|ine of the first component,and thereby restrict the axial movement of the coupling sleeve. Thus, the stopsection may be configured to prevent/stop further axial movement of thecoupling sleeve. ln one example, the stop section is configured to restrict axialmovement in only one direction. Typically, the stop section is configured torestrict axial movement in direction towards the first component, and thereby indirection away from the second component.

The stop section may be arranged to stop the coupling sleeve in the disengagedposition. Alternatively, the stop section may be arranged to stop the couplingsleeve in the engaged position.

The stop section may be arranged in association with at least one second gapformed between adjacent second splines of the second spline arrangement.According to an example, the coupling s|eeve comprises a stop sectionconfigured to interact with only one external spline of the first component.Alternatively, the coupling s|eeve comprises a stop section arranged inassociation with more than one second spline, wherein the stop section isconfigured to interact with a plurality of external splines of the first component.Alternatively, the coupling s|eeve comprises a stop section arranged inassociation with each second spline of the second spline arrangement, whereinthe stop section is configured to interact with all external splines of the firstcomponent. Thus, the stop section may extend along the inner circumference ofthe coupling s|eeve. This way, the load applied on the stop section whenstopping the coupling s|eeve will be distributed over a larger area.

According to an example, the stop section comprises a stop surface with a planeextending essentially perpendicularly to the rotational axis. The stop surfacemay be formed in association with the second spline arrangement. ln oneexample, the stop section is arranged to stop axial movement, so that thesecond spline arrangement, and thus the second end of the coupling s|eeve,never surrounds the first component. The stop section may be arranged, so thatthe external splines of the first component will abut the stop surface and therebyprevent further axial movement of the coupling s|eeve. Thus, the stop surfacemay face towards the first spline arrangement.

According to an example, the second spline arrangement is configured with amajor diameter and a minor diameter, wherein the major diameter of the secondspline arrangement is smaller than a major diameter of the external splines ofthe first component. The major diameter of internal splines is conventionallydefined as the distance between the bases of two oppositely arranged internalsplines. Since the gap between two adjacent splines is formed between the bases of the two adjacent splines, the major diameter of the internal splines may be defined as the distance between two oppositely arranged gaps. The minordiameter of internal splines is conventionally defined as the distance betweenthe top of two oppositely arranged internal splines. The major diameter ofexternal splines is conventionally defined as the distance between the top of twooppositely arranged external splines. The internal splines of the coupling sleeveengages with the external splines of the first component and/or the secondcomponent. By having a major diameter of the second spline arrangement thatis smaller than the major diameter of the external splines of the first component,the external splines of the first component will not fit within the second end ofthe coupling sleeve. l\/lore specifically, the external splines of the first componentwill not fit in the second gaps of the second spline arrangement. When thecoupling sleeve is axially displaced towards the first component, the externalsplines of the first component will eventually abut the stop section formed by thesecond spline arrangement of the coupling sleeve. This way, the coupling sleevewill not be able to be moved further in direction towards and beyond the firstcomponent. The stop section and/or stop surface may thus form part of the second spline arrangement.

The first spline arrangement may be configured with a major diameter and aminor diameter, wherein the major diameter of the first spline arrangement islarger than the major diameter of the second spline arrangement. This meansthat the base of each second spline is radially closer to the rotational axis thanthe base of each first spline. The major diameter of the first spline arrangementis typically larger than the major diameter of the external splines of the firstcomponent, so that the first splines and the external splines of the firstcomponent can engage. Thus, so that the external splines of the first component fits in the first gaps between the first splines of the first spline arrangement.

According to an example, the coupling sleeve comprises an intermediate sectionbetween the first end and the second end, wherein the inner diameter of theintermediate section is larger than the major diameter of the second splinearrangement. The intermediate section of the coupling sleeve is not provided with splines. The inner diameter of the intermediate section may be similar tothe major diameter of the first spline arrangement. The stop section may beformed between the intermediate section and the second splines. ln thetransition between the intermediate section and the second spline arrangement,the coupling sleeve may thus comprise a shoulder constituting the stop section.

The coupling sleeve may further comprise an outer channel/groove/slot,configured to engage with an actuator for axially displacement of the couplingsleeve. The outer channel/groove/slot may be arranged on the outside of thebody, The coupling sleeve may be configured for connecting a first rotatablecomponent and a second rotatable component. According to an example, thecoupling sleeve is configured to form part of a transmission, wherein the firstcomponent is a gear shaft and the second component is a gear wheel.Alternatively, the first component is a gear wheel and the second component isa gear wheel, or the first component and the second component are gear shafts.The coupling sleeve according to the disclosure may be used for engaging anddisengaging gears in a transmission. The coupling sleeve according to thedisclosure may be used for connecting different gear shafts in a transmission.

According to another aspect of the present disclosure, a transmissionarrangement is provided. The transmission arrangement comprises a firstrotatable component; and a second rotatable component; wherein thetransmission arrangement further comprises a coupling sleeve as disclosedherein for connecting the first rotatable component and the second rotatablecomponent. The transmission arrangement may be a p|anetary gear. lt is to beunderstood that all the features and examples mentioned herein in relation tothe coupling sleeve aspect are also applicable on the transmission arrangementaspect of the present disclosure. 11 According to another aspect of the present disclosure, a vehicle is provided. The vehicle comprises a transmission arrangement as disclosed above.

The present disclosure will now be further illustrated with reference to the appended figures.

Figure 'i schematicaily shows a side view of a vehicle i comprising a propuisionunit 2. The vehicle i aiso comprises a transmission arrangement 10 comprisiriga coupiing sleeve 20. The coupiing sleeve 20 is ftirther described in Figures 2-3. The vehicle 1 may be a heavy vehicle, e.g. a truck or a bus. The vehicle 1may alternatively be a passenger car. The vehicle 1 may be manually operated,remotely operated or autonomously operated.

Figure 2a-d schematically illustrate a coupling sleeve 20 for connecting a firstcomponent 12 and a second component 14 according to examples. Thecoupling sleeve 20 may be arranged in a vehicle 1. The vehicle 1 may beconfigured as disclosed in Figure 1. The coupling sleeve 20 comprises a firstinternal spline arrangement 300 arranged at a first end 21 of the coupling sleeve20; and a second internal spline arrangement 400 arranged at a second end 22of the coupling sleeve 20. The first spline arrangement 300 is configured to becoupled/engaged with external splines 13 of the first component 12, and thesecond spline arrangement 40 is configured to be selectively coupled/engagedwith external splines 15 of the second component 14. The coupling sleeve 20 isconfigured to be rotatably arranged around a rotational axis A. The couplingsleeve 20 is also configured to be axially moveable along the rotational axis A,which is illustrated with a double arrow in the figures.

The coupling sleeve 20 further comprises a stop section 24 arranged inassociation with the second spline arrangement 400. The stop section 24 isconfigured to interact with a surface of the external splines 13 of the first component 12, to restrict axial movement of the coupling sleeve 20. 12 The coupling sleeve 20 may comprise an essentially cylindrical body 23 with thefirst end 21 and the second end 22. The body 23 has a Iongitudinal extension(length) L extending between the first end 21 and the second end 23. The firstspline arrangement 300 extend along a part of the Iongitudinal extension L ofthe body 23 and the second spline arrangement 400 extend along a part of theIongitudinal extension L of the body 23. The first spline arrangement 300comprises a plurality of first splines 30 and the second spline arrangementcomprises a plurality of second splines 40. The first splines 30 and the secondsplines 40 may respectively be symmetrically and evenly arranged along theinner circumference of the body 23.

Each of the first and second splines 30, 40 extend radially between a base 32,42 and a top 34, 44. The base 32,42 is connected to the body 23 of the couplingsleeve 20, and the top 34, 44 faces the rotational axis A. The second splines 40may have a tapered shape. Thus, the second splines 40 may be tapering indirection towards the rotational axis A. The base 42 of the second splines 40may thus be larger than the top 44 of the second splines 40. The first splines 30may have an essentially rectangular or square cross-sectional shape.

The stop section 24 is configured to abut at least one external spline 13 of thefirst component 12, and thereby restrict the axial movement of the couplingsleeve 20. The stop section 24 may be configured to restrict axial movement indirection towards the first component 12, and thereby in direction away from thesecond component 14.

The second spline arrangement 400 is configured with a major diameter DSmaj-orand a minor diameter DSminof and the first spline arrangement 300 is configuredwith a major diameter DFmaj-of and a minor diameter DFminor. The major diameterDSmaj-of of the second spline arrangement 400 may be smaller than a majordiameter DEmaj-of of the external splines 13 of the first component 12. This way,the external splines 13 of the first component 12 will not fit between the secondsplines 40 of the coupling sleeve 20 and the stop section 24 does this way form 13 part of the second spline arrangement 400. The major diameter DFmaj-or of thefirst spline arrangement 300 is typically larger than the major diameter DEmaj-or ofthe external splines 13 of the first component 12, so that the first splines 30 andthe external splines 13 of the first component 12 can engage. Thus, so that theexternal splines 13 of the first component 12 fits in the gaps (not shown) betweenthe first splines 30 of the coupling sleeve 20. The major diameter DSmaj-or, DFmaj-orof the internal spline arrangements 300, 400 is defined as the distance betweenthe bases 32, 42 of two oppositely arranged internal splines 30, 40. The minordiameter DSminor, DFminor of the internal spline arrangements 300, 400 is definedas the distance between the top 34, 44 of two oppositely arranged internal splines 30,40.

The coupling sleeve 20 may further comprise an outer channel 60, configuredto engage with an actuator for axially displacement of the coupling sleeve 20.

The outer channel 60 may be formed on the outside of the body 23.

Figures 2a-b show an example where the stop section 24 is configured to stopthe coupling sleeve 20 in the disengaged position. Figure 2a shows the couplingsleeve 20 arranged coaxially with the first component 12 and the secondcomponent 14. The coupling sleeve 20 is in this figure in a disengaged positionwhere the first spline arrangement 300 is engaged with the external splines 13of the first component 12 but the second spline arrangement 400 is not engagedwith the external splines 15 of the second component 14. The coupling sleeve20 may be configured to always be coupled with the first component 12 bymeans of the first internal spline arrangement 300. ln the disengaged position,the stop section 24 abuts the external splines 13 of the first component 12, and the coupling sleeve 20 can thus not be moved further to the right in the figure.

Figure 2b shows the coupling sleeve in an engaged position where the couplingsleeve 20 is coupled to the first component 12 by means of the first splinearrangement 300 and to the second component 14 by means of the secondspline arrangement 400. 14 Figure 2c-d shows an example where the stop section 24 is configured to stopthe coupling s|eeve 20 in the engaged position. Figure 2c shows the couplings|eeve 20 arranged coaxially with the first component 12 and the secondcomponent 14. The coupling s|eeve 20 is in this figure in a disengaged positionwhere the first sp|ine arrangement 300 is engaged with the external sp|ines 13of the first component 12 but the second sp|ine arrangement 400 is not engagedwith the external sp|ines 15 of the second component 14. The coupling s|eeve20 may be configured to always be coupled with the first component 12 bymeans of the first internal sp|ine arrangement 300. Figure 2d shows the couplings|eeve in an engaged position where the coupling s|eeve 20 is coupled to thefirst component 12 by means of the first sp|ine arrangement 300 and to thesecond component 14 by means of the second sp|ine arrangement 400. Thecoupling s|eeve 20 has thus been moved to the right compared to thedisengaged position shown in Figure 2c. ln the engaged position, the stopsection 24 abuts the external sp|ines 13 of the first component 12, and thecoupling s|eeve 20 can thus not be moved further to the right in the figure.

Figure 3a-3b schematically illustrates a coupling s|eeve 20 according toexamples of the present disclosure. The coupling s|eeve 20 may be configuredas disclosed in Figures 2a-d. Figures 3a-b shows a perspective view of thecoupling s|eeve 20. The plurality of first sp|ines 30 and first gaps 36 of the firstsp|ine arrangement 300 is shown, as well as the plurality of second sp|ines 40and second gaps 46 of the second sp|ine arrangement 400. ln these figures, thecoupling s|eeve 20 comprises a stop section 24 extending along the innercircumference of the coupling s|eeve 20 at the second sp|ine arrangement 400. ln these examples, the coupling s|eeve further comprises an intermediatesection 50 between the first end 21 and the second end 22, wherein the innerdiameter of the intermediate section 50 is larger than the major diameter DSmai-orof the second sp|ine arrangement 400. The intermediate section 50 of thecoupling s|eeve is not provided with sp|ines. The inner diameter of the intermediate section 50 may be similar to the major diameter DFmaJ-or of the firstsplines.

Figure Sa also shows an enlarged view of a section of the coupling sleeve 20,to more clearly show the stop section 24. The stop section 24 comprises a stopsurface 26 facing the first splines 30 of the coupling sleeve 20. The stop section24, and thus the stop surface 26, is formed in the transition between theintermediate section 50 and the second sp|ine arrangement 400. ln the exampleshown in Figure 3b, the second splines 40 comprises a pointed end 43 facingthe first sp|ine arrangement 300. This is specifically shown in the enlarged viewof a section of the coupling sleeve 20 in Figure 3b. Even though it is not shownin the figure, the second splines 40 may also comprise a similarly pointed end45 facing away from the coupling sleeve 20.

Figure 4 schematically i||ustrates a transmission arrangement 10 according toan example of the present disclosure. The transmission arrangement 10 may beconventional gearbox for a vehicle 1. The transmission arrangement 10 may bea planetary gear. The transmission arrangement 10 may thus be configured fora vehicle 1 as disclosed in Figure 1. ln this example, the transmissionarrangement 10 comprises a first rotatable component 12 and a secondrotatable component 14. The first and second component 12, 14 can beconnected by means of a coupling sleeve 20 of the transmission arrangement10. The coupling sleeve 20 may be configured as disclosed in Figure 2a-d orFigure 3a-b. ln the transmission arrangement 10, the first rotatable component12 may be an input shaft, a main shaft, an output shaft or a lay shaft of thetransmission arrangement 10. The transmission arrangement 10 furthercomprises a number of gear pairs 17. Each gear pair 17 typically comprises apinion gear fixedly arranged on a shaft 12, and a gear wheel 14, whichselectively can be coupled to a shaft 12 by means of the coupling sleeve 20.The second rotatable component 14 may thus be a gear wheel 14. lt is to be understood that this is only an example of how the transmission arrangement 16 could be configured and the transmission arrangement 10 may thus bedifferently configured.

The foregoing description of the preferred embodiments of the present inventionis provided for illustrative and descriptive purposes. lt is not intended to beexhaustive or to restrict the invention to the variants described. l\/lanymodifications and variations will obviously be apparent to one ski||ed in the art.The embodiments have been chosen and described in order best to explain theprinciples of the invention and its practical applications and hence make itpossible for specialists to understand the invention for various embodiments and with the various modifications appropriate to the intended use.

Claims

1. A coupling s|eeve (20) for connecting a first component (12) and a secondcomponent (14), the coupling s|eeve (20) comprising: a first internal spline arrangement (300) at a first end (21) of thecoupling s|eeve (20); anda second internal spline arrangement (400) at a second end (22) of the coupling s|eeve (20); wherein the coupling s|eeve (20) is configured to be coupled withexternal splines (13) of the first component (12) via the first spline arrangement(300) and to be selectively coupled with external splines (15) of the secondcomponent (14) via the second spline arrangement (400), the coupling s|eeve(20) being configured to be rotatably arranged around a rotational axis (A),wherein the coupling s|eeve (20) is configured to be axially moveable along the rotational axis (A), the coupling s|eeve (20) further a stop section (24) extending along the inner circumference of thecoupling s|eeve (20) at the second spline arrangement (400), wherein the stopsection (24) is arranged to abut the external splines (13) of the first component(12), to restrict axial movement of the coupling s|eeve (20).

2. The coupling s|eeve (20) according to claim 1, wherein the stop section (24)comprises a stop surface (26) with a plane extending perpendicularly to therotational axis (A).

3. The coupling s|eeve (20) according to an one of the preceding claims, whereinthe second spline arrangement (400) is configured with a major diameter(DSmaj-or) and a minor diameter (DSminor), wherein the major diameter (DSmaj-or) issmaller than a major diameter (DEmaj-of) of the external splines (13) of the first component (12).

4. The coupling s|eeve (20) according to claim 3, wherein the first splinearrangement (300) is configured with a major diameter (DFmaj-or) and a minor diameter (DFminor), wherein the major diameter (DFmaj-or) is larger than the majordiameter (DSmaj-of) of the second spline arrangement (400).

5. The coupling sleeve (20) according to claim 4, wherein the coupling sleeve(20) comprises an intermediate section (50) between the first end (21) and thesecond end (22), wherein the inner diameter of the intermediate section (50) is larger than the major diameter (DSmaj-or) of the second spline arrangement (400).

6. The coupling sleeve (20) according to claim 5, wherein the stop section (24)is formed between the intermediate section (50) and the second spline arrangement (400).

7. The coupling sleeve (20) according to any one of the preceding c|aims,wherein the coupling sleeve (20) is configured to form part of a transmission arrangement (10).

8. A transmission arrangement (10), comprising: a first rotatabie component (12); and a second rotatabie component (14);wherein the transmission arrangement (10) further comprises a coupling sleeve(20) according to any one of the preceding c|aims for connecting the firstrotatabie component (12) and the second rotatable component (14).

9. A vehicle (1) comprising a transmission arrangement (10) according to claim8.