Summary of the invention
Task of the present invention is to realize following solution; That is, through this solution in wider temperature range at the mechanical movement aspect of performance, especially in the advantage that obtains aspect the unrestricted motion of clutch release bearing-guide structure and the property placed in the middle with respect to so far mode of structure.
According to the present invention, this task is able to solve through clutch release bearing-guiding device, and this clutch release bearing-guide structure has:
-guide sleeves cylindrical shell; This guide sleeves cylindrical shell is processed by composite; And limit as the acting internal surface of sliding guidance face; Wherein, the guide sleeves cylindrical shell comprises the body that extends between anterior end face edge regional, the rear portion of that clutch spring sheet dorsad the zone of the end face edge towards the clutch spring sheet in the position of packing into and these external two end face edge zones, and
-contained structure, this contained structure limits the tolerance sleeve that is used for holding the guide sleeves cylindrical shell and is provided with, and this tolerance sleeve comprises the anterior sleeve edges zone and the sleeve edges zone at rear portion, and the sleeve edges zone is adjacent with corresponding end face edge zone,
-wherein, this coupling disengage device is celebrated therefrom, promptly; In above-mentioned end face edge zone, the tolerance sleeve that the guide sleeves cylindrical shell is provided with being used for holding said guide sleeves cylindrical shell is respectively through keeping structure to connect mutually, wherein; Keep structure to construct through following mode; That is, keep structure that chimeric wall is provided down, through being supported radially outwardly by chimeric and quilt in the chimeric wall guided sleeve body of this time edge region.
Thus; Can realize clutch release bearing-guiding device in an advantageous manner; In this clutch release bearing-guiding device, the desired Inner Dimension as the acting internal surface of sliding guidance face of guide sleeves cylindrical shell can remain in the less tolerance range in bigger temperature range.Avoid in an advantageous manner based on design according to the present invention: through possible blockage effect occur internal cross section be not allowed to dwindle strongly.Based on design according to the present invention, can realize following clutch release bearing-guiding device, this clutch release bearing-guiding device can be processed by composite at low cost.Especially desired guide surface geometrical shape can in-40 ℃ to 180 ℃ temperature range, guaranteed through the guide sleeves cylindrical shell according to tensioning of the present invention.The danger of dwindling based on cross section in the guide sleeve that reduces through design according to the present invention can realize so constructing guide sleeve; That is move on the guide body that, this guide sleeve is provided with being used for guiding said guide sleeve with narrow relatively movement clearance.Can realize thus: reduce the off-centered degree of clutch release bearing; And also reduce the connected structure and the load and the stress of collocation structure that support through clutch release bearing thus, especially on the thrust ring and load and stress on belt bearer ring.
Send out the assembly put and can make and assemble in order to realize clutch release bearing-guiding device according to the present invention with mode cheaply with simple mode.The influence of thermal expansion and can be relatively very little through the caused shape defect of variation characteristic that is used for forming the material that the guide sleeves cylindrical shell uses.
According to the present invention especially preferred embodiment, following chimeric wall forms through the outer annular zone in sleeve edges zone.Can realize thus: directly the wall through contained structure comes tensioning guide sleeves cylindrical shell.
Alternatively also can realize this, form down chimeric wall through ring-type element, this ring-type element is installed on the guide sleeve device respective end portions fringe region, and this end edge area is tensioned on the contained structure.This ring-type element may be embodied as the deep-draw part and is provided with screens mechanism, this screens mechanism can realize ring-type element the guide sleeves cylindrical shell and/or on contained structure abundant location.At this, ring-type element especially can compress and be engaged on corresponding end face edge zone and the sleeve edges zone.
On the guide sleeves cylindrical shell, ring edge is structure on this guide sleeves cylindrical shell distolateral at least preferably, and ring edge is chimeric wall under overlap joint under the situation that forms annular convex shoulder.In the zone of this annular convex shoulder, can construct the screens structure equally, the location that can realize the guide sleeves cylindrical shell through this screens structure.
The tolerance sleeve that the guide sleeves cylindrical shell is provided with being used for holding said guide sleeves cylindrical shell can be constructed through following mode,, in the category that imports jointing state, realizes the resilient radial expansion of guide sleeves cylindrical shell that is.
On the guide sleeves cylindrical shell, can construct axial positioning structure in an advantageous manner, this axial positioning structure causes the axially locating of guide sleeves cylindrical shell in contained structure.This axial positioning structure can realize that especially this screens bump forms the integrated assembly of guide sleeves cylindrical shell through the screens bump.
The guide sleeves cylindrical shell can be configured to the member of multi-section fraction.Especially can realize constructing the guide sleeves cylindrical shell through following mode, that is, this guide sleeves cylindrical shell on axial direction, is divided into the shell structure element or multi-section section constructional element ground is implemented.This corresponding guide sleeves cylindrical shell shell or guide sleeve body section can have linkage structure ground structure, and this linkage structure can realize that single shell element connects mutually.Also can realize in addition: the guide sleeves cylindrical shell of in engagement positio, locating this multi-section fraction through the member that is provided with Mi Rongna guide sleeves cylindrical shell.
The guide sleeves cylindrical shell can be constructed through following mode, that is, this guide sleeves cylindrical shell comprises embedded structure, and is chimeric mutually in corresponding contained structure when this embedded structure makes up at the guide sleeves cylindrical shell, and in corresponding engagement positio the orientation direction sleeve body.
May be embodied as the flange housing in order to hold the contained structure that guide sleeves cylindrical shell according to the present invention is provided with.Also can realize contained structure is configured to insert cover, this insertions is overlapped and is at first connect with guide sleeve sports association, and can be used as preassembled construction package and be presented to and hold in the flange piece.This structural type is particularly suitable for being used for operating the clutch release bearing of bigger clutch system (especially high capacity waggon clutch).
Insert cover and can be fabricated to the deep-draw part, perhaps can special content be fabricated to coiled sheet spare according to the present invention.Put in insertion and can construct fixed structure, this fixed structure except realize the guide sleeve device according to the tensioning of the present invention, the composite body that can also realize the guide sleeve device further connects with inserting to overlap.
Guide sleeves cylindrical shell constructed according to the invention is preferably confirmed size through following mode, that is, the wall thickness of guide sleeves cylindrical shell is at least 3mm.The guide sleeves cylindrical shell can be constructed through following mode, that is, the conduct of the guide sleeves cylindrical shell acting inwall of part sliding guidance face at least forms definite profile, especially has the profile of the groove that on axial direction, distributes.
In addition, the guide sleeves cylindrical shell can be constructed through following mode, that is, this guide sleeves cylindrical shell can be on peripheral direction be expanded with very little radial force relatively, up to the outer surface of guide sleeves cylindrical shell on the contained structure internal surface of adjacency.This flexibility of guide sleeves cylindrical shell especially can realize through the shaping of vertical notch in the guide sleeves cylindrical shell.
The shell of guide sleeves cylindrical shell can be constructed through following mode, that is, this shell is the structure of on periphery soft relatively (zugweiche).This can realize through following mode: be about to sheathing material and divide as follows through flute section, so that sheathing material is corrugatedly around those flute section.Flute section can alternately enter into shell from two axial end portions, perhaps preferably radially enters into shell from the outside internally and radially successively.
In addition, can be implemented in to be provided with in the center region of guide sleeves cylindrical shell and be used for the mechanism of radial expansion or radial support guide sleeves cylindrical shell.This mechanism especially can exist with the supporting sleeve that is presented in the guide sleeves cylindrical shell.This supporting sleeve can be used as linkage structure and works, and through this linkage structure, can come corresponding section to combine under the situation transverse to the structure of vertically separating the guide sleeve body structure.
Embodiment
Fig. 1 illustrates the clutch release bearing-guiding device that comprises the clutch release bearing K that is carried by clutch release bearing-guiding device.Clutch release bearing-guiding device according to the present invention comprises guide sleeves cylindrical shell 1, and this guide sleeves cylindrical shell 1 is processed by composite, and defines as the acting internal surface I of sliding guidance face.That guide sleeves cylindrical shell 1 comprises is anterior, in the position of packing into towards the end face edge region S 1 of clutch spring sheet C and the end face edge region S 2 at the rear portion of that clutch spring sheet C and the body that between these two end face edge region S 1, S2, extends dorsad.
In addition, clutch release bearing-guiding device comprises the contained structure that is embodied as flange piece in this embodiment, and this contained structure limits the tolerance sleeve 2 that is used for holding guide sleeves cylindrical shell 1 and is provided with.This tolerance sleeve 2 comprises the sleeve edges area B 2 at anterior sleeve edges area B 1 and rear portion.Above-mentioned end face edge region S 1, S2 that these two sleeve edges area B 1, B2 are directly adjacent to guide sleeves cylindrical shell 1 extend.
Clutch release bearing-guiding device according to the present invention is celebrated through following mode; Promptly; In above-mentioned end face edge region S 1, S2, the tolerance sleeve 2 that guide sleeves cylindrical shell 1 is provided with being used for holding guide sleeves cylindrical shell 1 connects mutually through keeping structure UR1, UR2, wherein; This maintenance structure UR1, UR2 construct through following mode; That is, this maintenance structure UR1, UR2 provide down chimeric wall S respectively, and guide sleeves cylindrical shell 1 passes through the chimeric wall S quilt of this time from chimeric and quilt support radially outwardly down.
Among the shown here embodiment, in the scope of end face edge region S 1, ring edge R1 is configured on the guide sleeves cylindrical shell 1, and this ring edge R1 forms the annular convex shoulder that exceeds sleeve edges area B 1.Through this annular convex shoulder, the end face edge region S 1 of guide sleeves cylindrical shell 1 is suspending in the radial direction.
In this embodiment, the end face edge region S 2 of guide sleeves cylindrical shell supports through ring-type element R2.Ring-type element R2 comprises outer wall 3 and inwall 4, and this inwall 4 forms chimeric wall S down.Two walls 3,4 of ring-type element 2 connect mutually through the end-face wall 5 of front portion.Ring-type element R2 is provided with position structure 6 in outer wall area, ring-type element R2 through this position structure 6 on the sleeve edges area B 2 at rear portion by stop.
Here shown guide sleeves cylindrical shell 1 through by the sleeve edges area B of front portion 1 ring by front port be pushed in the contained structure 2.In this embodiment; The axially locating of guide sleeves cylindrical shell 1 in that contained structure 2 realizes through screens structure 7; This screens structure 7 forms through annular convex shoulder in this embodiment; This annular convex shoulder is in the end section that the step shape ground of contained structure 2 extends, and on pull-out direction the end-face wall of chimeric this step from behind.Through ring-type element R2, be positioned in the shown here chimeric status of the end face edge region S 2 at the rear portion of guide sleeves cylindrical shell 1.
Tensioning radially in the make described here of maintenance structure UR2 also is suitable for guide sleeves cylindrical shell 1 fore end face edge region S 1 zone under the situation of using ring-type element R2.The surface of contact that between end face edge region S 2 and ring-type element R2, forms can also be constructed on its geometric shape as follows; Promptly; Ring-type element R2 realizes on the end face edge region S 2 of guide sleeves cylindrical shell 1 promptly, such as here for example through the detailed view Z1 that includes in diagram institute image is explained.
In this embodiment, be embodied as the integrated assembly of the holding mechanism 2 formation clutch separation flanges of tolerance sleeve.Casing member 8 is on the contained structure 2, and this casing member 8 is preferably processed by composite, and molding and forming is to contained structure 2.Annular claw 9 is on the shell construction 8, through this annular claw 9 clutch release bearing K is connected on shell construction 8 and the contained structure 2.Clutch release bearing K realizes through following mode that to the connection on the shell construction 8 promptly, clutch release bearing K can be mobile a certain amount of in the radial direction with respect to contained structure 2.To this, spring shackle 10 is in the annular claw 9, through this spring shackle 10, and the end face that the outer loop member of clutch release bearing K 11 provides through annular claw 9 relatively and clamped.In addition, ring 12, rolling element 13 and seal arrangement 14,15 in clutch release bearing K comprises.Among the clutch release bearing K shown here, interior ring 12 is constructed through following mode, that is, interior ring 12 comprises ridge 12a, and this ridge 12a forms end face, and perhaps this end face can directly place on the clutch spring sheet C.
Guide sleeves cylindrical shell 1 by composite is processed is located through following mode form fit ground in the zone of sleeve edges area B 1, B2, that is, this guide sleeves cylindrical shell 1 can or not be allowed to far lift from the internal surface that is limited contained structure 2.
On side away from clutch, be used for to the composite sliding sleeve carry out radial and axial define run through the extending portion that position (Durchstellung) is shaped to steel flange cylindrical body section.Axial fixingly realize through the kayser bump of moulding on the end regions of composite sliding sleeve being engaged at the recess that runs through moulding on the position.For the bore dia that also can guarantee the composite sliding sleeve on away from the side of clutch in very narrow diameter range, end regions radially is forced in the bore edges zone of running through the position by means of prestressing force through end ring in other words.
In other make, propose the composite sliding sleeve is embodied as half housing.In order to make Matching Error keep as much as possible little, propose: in the plastic-blasting process, connect half housing of composite sliding sleeve through so-called film hinge.
Advantage is:
-on peripheral direction, can realize overlapping the length change of shell based on temperature fluctuation;
-thus, only also inquire into the cross section tolerance of composite housing and the very little diameter tolerance of steel flange as the tolerance that is used for guide clearance;
The thermal expansion that when different temperatures, the occurs of-housing be made up of composite is compensated on peripheral direction through axial grooving (straight or corrugated);
The relatively little manufacturing tolerances of-composite housing bore is possible;
Guide clearance between-housing bore and the guide sleeves can help better guiding the article quality to be dwindled;
Aforesaid mode of execution is applicable to second embodiment (especially being fit to basically about clutch release bearing) shown in Fig. 2.Especially be different from aforesaid embodiment about the maintenance structure UR of structure in end face edge region S 2 in the embodiment shown in this diagram.This maintenance structure UR is combining Fig. 1 maintenance structure UR1 described, that end face edge region S 1 is radially suspended corresponding to the front aspect its design that suspends basically.
This keeps structure UR2 to form outer wall 3, and this outer wall 3 is on the sleeve edges area B 2.In order to realize that this guide sleeves cylindrical shell 1 is encased in the contained structure 2, guide sleeves cylindrical shell 1 is embodied as at first separated member.Just in this point, guide sleeves cylindrical shell 1 is made up of the first guide sleeve section 1a and the second guide sleeve section 1b.These two guide sleeve section 1a, 1b engage one another in 16 zones, joint.Two guide sleeve section 1a, 1b can be implemented in these joint 16 zones and connect (especially connecting mutually through welding or technique for sticking) with material means mutually.Also can realize constructing linkage structure (especially promptly structure) in that guide sleeve section 1a, 1b are last; Promptly structure is carried out chimericly mutually when arriving here shown engagement positio, and makes guide sleeve section 1a, 1b location here in the shown assembling condition.
In addition, be provided with support ring 17 among the shown embodiment here, guide sleeves cylindrical shell 1 also is being supported through this support ring 17 in its center region between end face edge region S 1, S2 in the radial direction.This support ring 17 can be constructed through following mode,, through this support ring 17 promptly section is provided that is, firmly grasps section through this and can two guide sleeve section 1a, 1b be connected mutually equally.In the variation of guide sleeves cylindrical shell, also can be implemented in by means of the axial length that obviously surpasses the internal diameter of guide sleeves cylindrical shell in the inner region of guide sleeves cylindrical shell 1 and arrange a plurality of support rings 17.
Variation to according to Fig. 2 proposes: guide sleeves cylindrical shell 1 axial separated into two parts ground is implemented.The cylindrical ridge of the composite flanged structure through moulding in the end regions that axially, radially is fixed on cylindrical sector of composite sliding sleeve and the integrated molding of composite flanged structure carries out.For axial retention proposes: on joint 28, two composite sliding sleeve form fit ground, power are perhaps connected to material fit ordinatedly.The kayser of particularly advantageous moulding on peripheral direction, form fit connects.
In the other make of the present invention, alternatively propose: the metallic support cover is set in the zone line of composite sliding sleeve.This metallic support cover can be manufactured to coils band; For example through rolling volume and welding and/or making through clenching interlock (Chlichin); And the end regions with the composite sliding sleeve after engaging is pressed on the hole wall of steel flange closely, realizes the as far as possible little hole tolerance of composite sliding sleeve thus.
According to the additional embodiments of clutch release bearing-guiding device of the present invention, in this embodiment, contained structure 2 forms through inserting cover shown in Fig. 3, and this insertion cover is presented in the clutch separation flange 18.The insertion cover that is used to form contained structure 2 and is provided with is processed (especially coiled and form) by sheet material.Be similar to foregoing embodiment, this inserts cover and forms sleeve edges area B 1, B2, and is last through keeping structure UR1, UR2 suspend end face edge region S 1, the S2 of guide sleeves cylindrical shell 1 in this sleeve edges area B 1, B2.
Inserting on the cover 2 chimeric pawl 19,20 under the structure, through the chimeric pawl 19,20 of this time also at chimeric guide sleeves cylindrical shell 1 on the center region inner radial direction between end face edge region S 1, the S2.In addition, inserting structure screens pawl 21 on the cover 2, engagement positio shown here is located in the insertion mouth that provides through clutch separation flange 18 through this screens pawl 21.
Inserting cover 2 is preferably processed by steel.Insert cover 2 and can be made for the plate of coiling, wherein, preferably the joint of this plate connects mutually.This connection can realize through melting welding seam or solder joint.This connection also can realize through the linkage structure (especially promptly structure perhaps clenches occlusion structure in addition) of constructing other.
The embodiment who is similar to combination Fig. 2 is described, and guide sleeves cylindrical shell 1 can be divided into two ring-type element ground structures.The ring-type element 1a on the left side and the ring-type element 1b on the right can be connected mutually through weld or abutting edge mutually.Also maybe be as described herein, overlap the 2 incompatible realization screens structures that match with inserting, in this screens structure engagement positio that two guide sleeve element 1a, 1b maintenance are shown here.
Can in the zone line of composite sliding sleeve, be provided with the metallic support cover.This metallic support cover can be manufactured to the coiling band; For example through roll the volume and the welding and/or through clenching interlock manufacturing; And the end regions with the composite sliding sleeve after engaging is pressed on the hole wall of steel flange closely, realizes the as far as possible little hole tolerance of composite sliding sleeve thus.
Possible in addition is wherein, can realize and will on steel flange, fix through engaging by means of the composite sliding sleeve 31 and 32 of steel bushing 31 engagings.
Shown in Fig. 4 according to the 4th embodiment of clutch release bearing-guiding device of the present invention.Be similar to aforesaid embodiment, in this embodiment guide sleeves cylindrical shell 1 in the zone of the end face terminal part S1 of guide sleeves cylindrical shell 1, S2 respectively by chimeric wall S is chimeric from down down.In this embodiment, the chimeric wall S of this time keeps structure UR1, UR2 to provide through sleeve edges area B 1, B2 are deformed into.
Construct screens structure 21 once more inserting on the cover 2, can be through this screens structure 21 with inserting stop on cover 2 rigging position shown here.In this embodiment, this screens structure is embodied as the screens pawl, and this screens pawl forms through the bending ram of the respective section of the shell of insertion cover 2.In addition, annular convex shoulder 22 is provided, clutch release bearing-guiding device is determined to the degree of depth of holding in the member (being clutch separation flange 18 here) that pushes through this annular convex shoulder 22 through inserting cover 2.
Guide sleeves cylindrical shell 1 can and/or also be put together by a plurality of ring-type elements by a plurality of hull shape elements.These single guide sleeve body member connect mutually through inserting cover 2.The anticreep location of the discrete component of guide sleeves cylindrical shell 1 also automatically produces when guide sleeves cylindrical shell 1 makes up in clutch system.
The 5th embodiment shown in Fig. 5, this embodiment is corresponding with the embodiment according to Fig. 4 basically in its structure.With according to the embodiment of Fig. 4 different be through guide sleeves cylindrical shell 1 contact pin section 22 to be provided, through these contact pin section 22 guide sleeves cylindrical shells 1 location and holding in the receiving member (being clutch separation flange 18 here) of this insertions cover 2 and locating in inserting cover 2.In order to assemble this variation of clutch release bearing-guiding device, at first guide sleeves cylindrical shell 1 is fabricated to the structure of multi-section fraction.Will insert the cover 2 be presented in the clutch separation flange 18 after; The portion's section that is provided with contact pin section 22 of guide sleeves cylindrical shell 1 radially is presented to internally to be inserted in the cover 2, thereby contact pin section 22 sinks to in the space of the corresponding align of inserting cover 2 and clutch separation flange 18.Thus, the guide sleeves cylindrical shell is fixed in the clutch separation flange 18 and inserts in the cover 2.Improve after the guide sleeves cylindrical shell 1 through inserting other guide sleeve body section if desired; Inserting cover 2 (shown in here) in sleeve edges area B 1 or B2 deforms; Keep structure UR1 or UR2 thereby produce; This maintenance structure UR1 or UR2 form down chimeric wall S respectively, end face edge region S 1, the S2 of this down chimeric wall S and radially outward supporting guide sleeve body 1 chimeric from the back.
Through guide sleeves cylindrical shell 1 being divided into the structure that pieces together by at least two shell portion sections, perhaps vertically separately locate through structure at least, can avoid the internal cross section of guide sleeves cylindrical shell 1 to dwindle (especially shrinking) based on the change in volume that causes by temperature.Can realize on the cover 2 internal cross section of guide sleeves cylindrical shell basically through inserting cover 2 size in the portion zone and confirm within it through the guide sleeves cylindrical shell being suspended to insert through the wall thickness of guide sleeves cylindrical shell 1 according to the present invention.Compare with the girth of guide sleeves cylindrical shell, the obviously less absolute dimension that causes owing to temperature fluctuation of the wall thickness experience of guide sleeves cylindrical shell 1 changes.
Clutch release bearing-guiding device according to the present invention preferably includes the steel flange that is fabricated to deformation element; In this steel flange, preferably insert the composite sliding sleeve of fluting, thereby this composite sliding sleeve directly radially and axially is fixed on the columniform section of steel flange.At this, the composite sliding sleeve near the side of clutch regulator spring on the composite flange of moulding the time form the axial portion that defines with the distolateral of steel flange in assembling.In order to realize the as far as possible little hole tolerance of composite sliding sleeve, on the composite flange moulding, columniform ridge is by the columniform end section of press fit around steel flange.
A kind of release bearing is proposed in Fig. 4, in this release bearing, the bottom section that steel bushing radially forms through relative configurations and the composite of slotting is slided on the hole wall that is pressed to steel bushing on the end regions through crimped neck (Boerdelkragen).For example steel bushing is through making a concerted effort ordinatedly being press-fitted on the steel flange and/or axially fixing through the engaging on steel flange.But the interconnection technique of material and/or form fit (like screw thread of laser bonding, bonding, punch riveting, roll extrusion etc.) also is admissible.Then steel bushing also can be implemented with smooth cylindrical body form to this.Steel bushing can roll volume, weld and/or form through clenching to be connected to make in deep-draw processes or by band.This is proposed as variation: at the center, hole the steel supporting sleeve is set when needing.
Can realize that the composite sliding sleeve is had kayser contact pin ground to be implemented.After being positioned at steel flange on the steel bushing, half housing of composite sliding sleeve is seamlessly joined in the punching press mouth (Freistanzung) of steel bushing and flange by means of its kayser contact pin, wherein, the top of kayser contact pin engages on peripheral direction with steel flange.Simultaneously, release bearing axially is fixed on the steel flange through crimping frame (Boerdelborg).So for radial compaction composite sliding sleeve, the end regions of steel bushing seamlessly is molded on the composite sliding sleeve through for example pressure crimping.