DE202014007386U1 - Assembly for axially fixing components on shafts and axles - Google Patents

Abstract

Assembly for axially fixing components on shafts and axles, comprising an essentially annular body (2) with an internal thread (2c) and with at least one radial gap (4) and free gap ends (2a, 2b) formed by this, as well as a clamping unit (3), consisting of at least one tensioning element (28) and at least one further element (29, 30) which is positively connected to the tensioning element (28) and which applies the tensioning force applied by the tensioning element (28) to one of the free gap ends (2a, 2b) of the annular body (2), characterized in that the structural unit forms at least one single, axially elastic section (19) in the direction of the longitudinal extension of at least one of the structural unit and internal thread (2c) of the annular body (2) .

Description

From the EP 1390626 a unit for axially fixing components on shafts and axles is known, which has a substantially annular body with an internal thread and at least one radial gap, and a clamping mechanism which bridges this at least one gap. By applying a tangential clamping force, the radial gap bounding, free ends of the annular body are pulled towards each other. This reduces the effective circumference of the thread of the annular body. The resulting reduction in the thread diameter causes when mounting on a shaft thread a radial clamping of the internal thread on the shaft thread.

To simplify the assembly of the assembly on the shaft thread of the annular body can be expanded, so that the thread diameter is increased.

Due to the radial flexibility of the annular body, the assembly is within certain limits tolerant of deviations from pitch diameter and roundness of the shaft thread; All types with undivided ring bodies do not have this advantage.

The indicated features also apply to mounting on an axle thread or on a bolt thread; for ease of reading, reference is made in the following explanations only to a shaft and a shaft thread. Likewise, the term "ring-shaped body" is replaced by "ring body" for ease of reading.

The known assembly can be used in two ways for the axial fixing of components on a shaft:
The assembly is screwed with hand force over handles, which are mounted on the ring body during assembly, with its end face axially against the component to be fixed. The thus constructed axial force between the unit and component to be fixed causes the pointing away from the component thread flank of the annular body at the side facing her and the component flank of the nut thread comes to rest. Depending on the force applied when screwing on and the thread friction, an axial force builds up between the assembly and the component to be fixed and between the assembly and the shaft thread. Thereafter, the assembly is clamped over the actuation of the clamping mechanism and the consequent reduction of the thread diameter of the annular body radially on the shaft thread. Due to the slope of the thread flanks, the reduction of the thread diameter of the ring body leads to an axial movement of the assembly on the shaft thread in the direction of the component to be fixed and thereby to an increase of the axial force between the two.

In the event that the component to be fixed by form fit or frictional connection can be derived by the unit constructed, axial force completely into the shaft, the component remains in position on the shaft, and the assembly is clamped against the shaft thread and frictional engagement of the Thread secured on the shaft.

If the component to be fixed can not completely divert the axial force built up by the structural unit into the shaft, it is displaced or plastically deformed on the shaft or both. The further actuation of the clamping unit then causes the further reduction of the diameter of the annular body that each create two thread flanks of ring body and shaft thread to each other. The built surface pressure between the threads causes the frictional securing the unit on the shaft thread.

The frictional engagement between each two thread flanks ensures the secure hold of the assembly on the shaft thread, even if the axial force between the assembly and the component to be fixed during operation of the system is partially or completely lost. This can happen by an axial displacement of the component to be fixed, by the axial deformation under load or by their wear or corrosion-related, axial shortening.

In the case of the assembly and component which is axially tensioned according to the first description, the loss of the axial force would lead to the frictional connection between the thread of the assembly and the shaft thread being removed; Consequently, the thread of the assembly would have a certain amount of loose on the shaft thread, so that the assembly could rotate due to acting, external forces on the shaft thread and could possibly even solve.

In order to ensure safe operation of the assembly in each assembly case, it is installed on the shaft thread, that a defined axial air gap between the ring body and the component to be fixed remains. As a result, when the clamping unit is actuated, in each case both thread flanks of the annular body and the shaft thread abut each other, so that the described frictional locking of the structural unit on the shaft thread is ensured.

• 1. Baueinheit mit definierter Spaltweite des Ringkörpers per Handkraft an der Stirnfläche der zu fixierenden Komponente zur Anlage bringen;
• 2. Spanneinheit mit definierter Kraft anziehen; Position einer ersten, stirnseitigen Markierung des Ringkörpers mit geeignetem Stift auf dem Wellengewinde markieren;
• 3. Spanneinheit lösen, bis die definierte Spaltweite des Ringkörpers wieder erreicht wird;
• 4. Baueinheit ca. 90° auf dem Wellengewinde zurückdrehen;
• 5. Baueinheit wieder auf das Wellengewinde aufdrehen, bis eine zweite stirnseitige Markierung des Ringkörpers mit der Markierung des Wellengewindes übereinstimmt;
• 6. Spanneinheit mit zweiter, definierter Kraft anziehen;
• 7. Prüfen, ob zwischen Baueinheit und zu fixierender Komponente ein definierter axialer Luftspalt vorhanden ist.

This is achieved by an assembly method comprising the following steps:

• 1. bring assembly with defined gap width of the ring body by hand force on the face of the component to be fixed to the plant;
• 2. Tighten the clamping unit with a defined force; Mark the position of a first end mark of the ring body with a suitable pin on the shaft thread;
• 3. Loosen the clamping unit until the defined gap width of the ring body is reached again;
• 4. Turn back the assembly about 90 ° on the shaft thread;
• 5. Turn the assembly back onto the shaft thread until a second end marking of the ring body coincides with the mark of the shaft thread;
• 6. Tighten clamping unit with second, defined force;
• 7. Check whether there is a defined axial air gap between the unit and the component to be fixed.

The assembly procedure described is relatively expensive.

In order to ensure especially in large units, that in each case create two thread flanks of ring body and shaft thread completely together, in the aforementioned assembly steps 2 and 6, the clamping unit is tightened and at the same time the ring body with a soft-faced hammer or the like radially on the shaft thread.

The simultaneous tightening of the clamping unit and the driving of the ring body on the shaft thread is necessary because it does not allow the clamping unit due to their structure that the free ends of the ring body can move to the extent to each other, as it is for the unimpeded driving of the ring body the shaft thread would be necessary. Rather, the clamping unit and the integration of the clamping unit in the annular body are constructed at right angles to the radial gap of the annular body stiff and without substantial lots; The unit is therefore locked against an externally imposed reduction of the ring body.

The required simultaneity of tightening the clamping unit and driving the annular body is achieved in the practical application that the clamping unit is biased by tightening the clamping element, and that during subsequent driving of the annular body applied by the biasing, elastic stretching of the clamping unit for the reduction the annular body circumference is used until re-locking the clamping unit. The short time sequence of clamping and flaring causes a quasi-simultaneity of these processes, but requires for the assembly of a large unit at least a two-person team.

It is the object of the invention to provide a structural unit for the axial fixing of components on shafts and axles, which can be assembled easily and comparatively quickly, while offering the technical advantages of the structural unit known from the prior art.

The structural unit according to the invention has advantageous embodiments over the known prior art.

The assembly forms on one of its end faces at least a single, in the axial direction of the annular body elastically formed portion which comes into contact with the assembly of the assembly on an end face of the component to be fixed. In this case, the elastically formed portion protrude axially beyond all other components of the assembly; but it can also protrude only over him directly surrounding area of the assembly, said area does not protrude axially over all other components of the assembly. For example, the elastically formed portion protrude axially beyond an end face of the ring body, said end face being axially behind a different end face of the ring body. The system of the elastic portion is then carried out on an axially correspondingly projecting end face of the component to be fixed.

The described axially elastic portion may additionally be radially elastic; but this is not mandatory for the function of the unit according to the invention. However, such a radial elasticity may be technically meaningful.

The at least one axially elastic portion may be formed by at least one single separate component or by the ring body itself or by a combination of both.

Preferably, the elastic portion is formed by a separate, elastic profile body, which is positively or positively secured to the annular body such that it protrudes axially beyond the end face of the annular body.

Such a profile body is particularly preferably an O-ring cord or another extruded profile, which is preferably made of rubber, of a synthetic elastomer or of a polyurethane.

The attachment of the profile body on the annular body is done by gluing, Screwing, jamming or vulcanising if applicable; Preferably, a portion of the profile body is clamped in correspondingly executed openings of the annular body such that at least a portion of the profile body protrudes over the widest axial extent on the end face of the annular body.

In a particularly preferred embodiment, an O-ring cord is clamped in a circumferential groove in the end face of the annular body such that it protrudes from the end face with approximately half the profile diameter.

In a further preferred embodiment, the elastic portion is formed by a separate, elastic component made of metal or of a flexible polymer or of a hard-elastic polymer.

Preferably, such an elastic component is formed from a metal or polymer strip with preferably constant round or rectangular cross-section and corrugated or substantially zig-zag-shaped circumferential extent, wherein the projections and recesses of the shape are aligned in the direction of the longitudinal extent of the component.

Particularly preferred here is a spring steel strip with sinusoidal circumferential extent in the manner of a wave spring or a Wellfederringes used.

Further preferably, such an elastic member is formed as an at least partially circularly on the annular body circumferential spring lip of the type of a plate spring made of a metal or Polymerronde.

Alternatively, a number of axially elastic members may be provided by compression springs or torsion springs. These are then advantageously made of a resilient metal.

The elastic member is preferably mounted in an end groove on the annular body. This groove is advantageously designed so that it leads the component in the radial direction, without reducing its axial deformation under load.

In the formation of the elastic member as a corrugated spring ring, the spring travel and the spring rate can be adapted to the respective use by an appropriate choice of the depth of the installation groove, the height of the waveform, the material and the tape cross-section. Is the elastic member formed in the manner of a plate spring, this adjustment is done on the choice of the depth of the Einbaunut, the height and the strength of the conical spring plate, as well as on the material.

Advantageous in the formation of the elastic portion by a separate, elastic metal component instead of an elastomer or polymer component are achievable at the same volume, higher spring rates, the applicability at higher operating temperatures and the lower tendency to settle due to creep and aging phenomena.

In a further embodiment, the elastic portion is formed by a frontally projecting portion of the annular body. Preferably, this section is an at least partially encircling the body ring whose connection is made to the rest of the annular body by forming an axially resilient portion. The resilient portion may preferably be formed in the manner of a plate spring or as a number of axially elastic tabs.

In a preferred embodiment, the annular body has a circumferential, substantially radial groove which axially separates the correspondingly formed, resilient section from the rest of the geometry of the annular body.

• 1. Baueinheit mit definierter Spaltweite des Ringkörpers per Handkraft an der Stirnfläche der zu fixierenden Komponente zur Anlage bringen;
• 2. Spanneinheit mit definierter Kraft anziehen.

By an elastic portion according to one of the described types, a simpler installation of a structural unit according to the invention on a shaft thread is possible; The assembly process comprises the following steps:

• 1. bring assembly with defined gap width of the ring body by hand force on the face of the component to be fixed to the plant;
• 2. Tighten the clamping unit with a defined force.

The axial movement of the structural unit acting on the component to be fixed during actuation of the clamping unit by the flank angles of the thread is at least partially compensated by the elastic section, but preferably completely. It is thereby achieved that create both flanks of the thread of the annular body to the flanks of the shaft thread and thereby the described frictional locking of the assembly takes place.

The assembly process is thus much less expensive than the method in a structural unit according to the known prior art. Moreover, it can be carried out practically error-free with a certain basic care.

Also advantageous in the application of a structural unit according to the invention is that the elastic portion in the assembly of the assembly on the front side to be fixed on the shaft component comes to the plant and exerts an axial force on this.

When mounting the unit on the shaft thread results over the axial displacement of the assembly pressing the elastic portion on the component to be fixed, whereby for this in the circumferential direction of the shaft a tighter fit on the shaft is achieved, as in the usual use of a structural unit according to the known prior art would be the case. By forming an increased coefficient of friction between the elastic portion of the assembly and the contact surface of the component to be fixed, any possible rotation of the component relative to the shaft or axle carrying it can be prevented.

Due to the elastic contact between the unit and the component to be fixed, a migration of the component on the shaft under the influence of a rotating bending load can be prevented with appropriate design of the elastic portion.

Furthermore, it is prevented by the elastic, axial contact between the annular body and the component to be fixed, that can build up abruptly under load, built up between these mechanical stresses; Cracking noises generated by the sudden release are thereby prevented.

Furthermore, micro-movements between the contact surfaces of the annular body and the component to be fixed are prevented by this embodiment of a structural unit according to the invention, which lead to corrosion of the components involved.

Due to the integration of the elastic section in the structural unit according to the invention, the presence of this section does not constitute an additional handling or control effort during assembly of the structural unit on a shaft thread.

In a further advantageous embodiment of a structural unit according to the invention, the components of the clamping unit and the receiving these housings of the annular body are designed such that their interaction allows an externally acting on the unit, radial driving of the annular body on the shaft thread, without blocking the unit against this upsetting occurs. This radial driving of the annular body on the shaft thread causes an improved fit of the assembly on the shaft thread.

The clamping unit consists of a clamping bolt with at least one section with external thread and at least one further element with a matching to the external thread of the clamping bolt internal thread.

Preferably, the clamping unit consists of a clamping bolt with an external thread and a clamping bolt head in the manner of a screw head, as well as a second element with a matching to the external thread of the clamping bolt internal thread.

A further preferred embodiment of the clamping unit has a clamping bolt with two external threads with different thread pitch, and a second and a third element, each with a matching to one of the external thread of the clamping bolt internal thread.

Particularly preferably, the second or the second and the third element of the clamping unit is designed as a substantially cylindrical transverse pin, wherein the internal thread is preferably aligned at right angles to the cylindrical outer surface.

The ring body has installation spaces for the components of the clamping unit, of which at least one is designed so that after the assembly of the clamping unit on the side facing away from the gap of the annular body a, extending in the tangential direction, remains free space. This is so large that it is at least a fraction, but preferably a multiple of the thread pitch of the clamping bolt or the difference of the two thread pitches of the clamping bolt.

Preferably, the described clearance is formed by a slot having the same or a larger diameter than the cross bolt hole. Particularly preferably, the free space is formed by a second bore whose diameter and position of its central axis to the central axis of its associated cross bolt hole are tuned so that the free space is formed and at the same time the gap facing contact surfaces of cross bolt and cross bolt hole for a safe introduction of the tangential Tension forces in the ring body are sufficient.

This embodiment of the ring body causes when mounting the assembly on a shaft thread that the radial direction of the annular body on the shaft thread, the clamping unit in the tangential direction of the ring body sufficiently free path against locking the gap ends of the ring body by the respective current Verschraubungslänge the clamping unit ,

The driving of the ring body by means of hammer blows on the outer peripheral surface of the body or by other suitable measures, such as the use of an external radial clamping device.

Due to the significantly lower number of processes from preloading the clamping unit and driving the ring body so the tight fit of the internal thread of the assembly can be achieved on the shaft thread with less effort than in the known assembly according to the prior art. Even with large units assembly by a single fitter is feasible.

Further advantageous embodiments are described by the subclaims.

Preferred embodiments of a structural unit according to the invention are in the 1 to 10 demonstrated.

The features which become apparent in the exemplary embodiments form the subject matter of the claims individually and in each combination of features. Also, features disclosed in only one of the examples further elaborate the other examples or show an alternative unless otherwise indicated or only possible.

Show it:

1 a structural unit with a separate elastic element according to a first embodiment in a longitudinal section;

2 an enlarged section of the ring body and the elastic element of the assembly 1 ;

3 a structural unit with a separate elastic element according to a second embodiment in a longitudinal section;

4 an enlarged section along the circumference of the unit 3 ;

5 a structural unit with an elastic portion of the annular body according to a third embodiment in a longitudinal section;

6 an enlarged section of the ring body with the elastic portion of the assembly 5 ;

7 a structural unit according to a fourth embodiment in a frontal, partially cutaway view;

8th the clamping unit and the ring body of the unit 7 in a tangential section;

9 a structural unit according to a fifth embodiment in a frontal, partially cutaway view;

10 the clamping unit and the annular body of the unit 9 in a tangential section.

1 shows a preferred embodiment of a structural unit according to the invention in a longitudinal section.

The ring body 2 points to his front page 5a a circumferential groove 6 into which an o-ring cord 8th as an elastic element 7 is inserted such that a part of the profile cross section of the O-ring cord 8th over the front side 5a of the ring body 2 protrudes.

The O-ring cord 8th is in the gap 4 of the ring body 2 interrupted; Alternatively, it can also be the gap 4 partially or completely bridge.

During assembly of the unit 1 on the shaft thread is by screwing the ring body 2 on the shaft thread the O-ring cord 8th brought to the front of the component to be fixed to the plant and clamped axially, said tension is dependent on the torque applied when screwing the assembly.

By operating the clamping unit 3 becomes the ring body 2 pushed further against the component to be fixed; the case covered, axial path of the ring body 2 is about the corresponding axial deformation of the O-ring cord 8th compensated. It follows that the profile diameter of the O-ring cord 8th suitable for the maximum possible axial displacement of the unit 1 must be selected on the shaft thread. Advantageously, the profile diameter is selected so that even after the maximum possible axial displacement an elastic deformation reserve in the O-ring cord 8th remains.

It is also advantageous, the cross sections of elastic element 7 and groove 6 to match such that the component to be fixed by the action of a correspondingly high axial force on the end face 5a of the ring body 2 comes to rest without the elastic element 7 this is plastically deformed.

2 shows an enlarged section of the ring body 2 and the O-ring cord 8th when elastic element 7 of the unit 1 ; In particular, here is the formation of the circumferential groove 6 shown.

The groove 6 preferably has a substantially trapezoidal cross-section, wherein on the end face 5a of the ring body 2 lying opening 9 has a smaller radial extent than the bottom surface 10 the groove 6 ,

Furthermore, the transitions of the face 5a to the sloping side surfaces 11 . 12 with radii 13 . 14 rounded.

Preferably, the cross-sectional geometry of the groove 6 chosen so that the O-ring cord 8th with its half profile diameter across the front 5a of the ring body 2 protrudes, and that while the O-ring cord 8th stuck in the groove 6 is held without being damaged.

3 shows a further preferred embodiment of a structural unit according to the invention in a longitudinal section.

The ring body 2 points to his front page 5a a circumferential groove 6a into which a wave spring 15 with preferably rectangular cross section as an elastic element 7 is inserted. The wave spring 15 and the groove 6a are designed such that the projections and recesses 16 . 17 the wave spring 15 in the direction of the longitudinal extent of the annular body 2 aligned, and that the unloaded wave spring 15 preferably at least with its half longitudinal extension axially over the annular body 2 protrudes.

During assembly of the unit 1 on the shaft thread is by screwing the ring body 2 on the shaft thread the wave spring 15 brought to the front of the component to be fixed to the plant and axially braced. By operating the clamping unit 3 becomes the ring body 2 pushed further against the component to be fixed; the case covered, axial path of the ring body 2 is about the corresponding axial deformation of the wave spring 15 compensated.

Advantageously, the profile cross-section and the height of the projections and recesses 16 . 17 the wave spring 15 chosen so that even after the maximum possible axial displacement of the unit 1 on the shaft thread an elastic deformation reserve in the wave spring 15 remains. It is also advantageous, the cross sections of wave spring 15 and groove 6a to match such that the component to be fixed by the action of a correspondingly high axial force on the end face 5a of the ring body 2 comes to rest without the wave spring 15 this is plastically deformed, since it completely into the groove 6a dips.

Preferably, the wave spring bridges 15 the gap 4 of the ring body 2 ; Alternatively, it can also be in the gap 4 be interrupted.

4 shows an enlarged section of the ring body 2 and the wave spring 15 along the circumference of the unit 3 ; in particular, here is the formation of the wave spring 15 as a wavy ring with a rectangular cross-section 15a shown. The projections 16 the wave spring 15 stand axially over the face 5a of the ring body 2 forth while the recesses 17 the wave spring 15 each at the bottom surface 18 the groove 6a issue.

5 shows a further preferred embodiment of a structural unit according to the invention in a longitudinal section.

The ring body 2 forms at least on a part of its front 5a an axially protruding elastic portion 19 out. This is done by one, radially to the outside of the ring body 2 extending groove 20 a spring lip 21 so axially from the remaining part of the ring body 2 that separates only one to the inside of the ring body 2 oriented footbridge 22 with a relatively small cross section, the spring lip 21 with the remaining ring body 2 combines.

During assembly of the unit 1 on the shaft thread is the spring lip 21 brought to the front of the component to be fixed to the plant and clamped axially, said tension is dependent on the torque applied when screwing the assembly.

By operating the clamping unit 3 becomes the ring body 2 pushed further against the component to be fixed; the case covered, axial path of the ring body 2 is about the corresponding axial deformation of the spring lip 21 compensated. Accordingly, the geometries of the spring lip 21 and the groove forming it 20 be chosen so that the maximum possible axial displacement of the unit 1 on the shaft thread only an elastic deformation of the spring lip 21 causes; a plastic deformation is to be avoided. Preferably, the spring lip 21 and the groove 20 designed so that beyond the strain remains an axial deformation reserve.

6 shows an enlarged section of the ring body 2 and the spring lip 21 of the unit 5 ; in particular, here is the formation of the spring lip 21 myself and the groove 20 shown. The spring lip 21 is preferably in the nature of a Belleville spring executed; It therefore has a wall axially behind the front and back 23 . 24 each with a flat conical shape. The contact geometry for contact with the component to be fixed is preferably a planar end face 25 performed; Alternatively, the contact geometry can also be rounded.

The groove 20 extends so far radially inwardly into the ring body 2 into it, that to the inside of the ring body 2 remaining bridge 22 only has a relatively small cross-section. This ensures that the axial elasticity of the spring lip 21 only as little as possible by the axial stiffness of the web 22 is reduced.

The geometries of spring lip are preferred 21 , Groove 20 and footbridge 22 so chosen that the spring lip 21 can be so heavily loaded axially that its rear wall 24 on the front side 5a oriented wall 26 the groove 20 or on the same-oriented wall 27 of the ring body 2 rests without any plastic deformation of the elements 20 . 21 . 22 he follows.

An alternative, particularly preferred embodiment provides that the spring lip 21 at a correspondingly strong, axial load as far as the ring body 2 elastically axially spring-in that the component to be fixed on the end face 5a of the ring body 2 comes to rest, and that between the wall 24 the spring lip 21 and the walls 26 . 27 from groove 20 and ring body 2 an axial air remains.

7 shows a further preferred embodiment of a structural unit according to the invention 1 in which the clamping unit 3 from a clamping bolt 28 with a clamping bolt thread 31 and a clamping bolt head 32 with spherical contact surface 33 , as well as a cross bolt 29 with one to the clamping bolt thread 31 appropriately executed threaded hole 35 consists.

The ring body 2 points to the gap 4 opposite side of the cross bolt hole 37 a free space 43 on, which in the tangential direction - based on the internal thread 2c - Is sized so that its extent at least 0.5 times the pitch of the clamping bolt thread 31 corresponds; particularly preferably, it corresponds to at least twice the pitch of the clamping bolt thread 31 , This free space is preferred 43 formed by a slot, but more preferably by a free hole 40 , their diameter and position in the ring body 2 are tuned so that the described space 43 is formed, and at the same time to the gap 4 oriented lateral surface 29a of the transverse bolt 29 and the adjacent inner surface 38 the cross bolt hole 37 for a safe transmission of the tangential clamping forces between the clamping unit 3 and ring body 2 suffice.

This configuration causes during assembly of the unit 1 on a shaft thread that during radial reaming of the ring body 2 on the shaft thread by means of hammer blows or other suitable measures the assembly of the clamping unit 3 in the tangential direction of the annular body 2 sufficient lots against blocking the approach of the column ends 2a . 2 B through the clamping unit 3 is available. At the approach of the column ends 2a . 2 B the cross bolt shifts 29 from the cross bolt hole 37 in the free hole 40 without on the wall 41 to run aground.

Before the possibly necessary, further radial Auftreiben the ring body 2 on the shaft thread is the clamping bolt 28 tightened with a given torque. This places the contact surfaces 29a . 38 of cross bolts 29 and cross bolt hole 37 to each other, so that between the wall 41 the free bore 40 and the cross bolt 29 again the free space 43 arises; a further radial expelling of the annular body 2 on the shaft thread is possible.

After completion of the radial flare is the clamping bolt 28 tightened with a specified torque for final assembly. By preferably self-locking design of the screw of clamping bolts 28 , Cross bolt 29 and ring body 2 is thus the structural unit 1 secured on the shaft thread.

8th shows the assembly according to the invention 1 out 7 in a tangential section. It can be seen that the free bore 40 itself as well as the cross bolt hole 37 from a front side 5a to the other end face 5b of the ring body 2 extends so that the space described 43 on both sides of the clamping bolt 28 on the front sides 5a . 5b designed to be directed. The center axes A1 of the cross bolt hole 37 and the center axis A3 of the free hole 40 are preferably arranged parallel to each other at a distance D1.

Alternatively, it is possible to have at least one cross-bolt hole 37 and free bore 40 To execute as a blind hole, so that these are not from the front 5a to the front side 5b extends. To do the training of the free space 43 between cross bolts 29 and wall 41 the free bore 40 to reach, the cross-bolt needs 29 Be executed so that it is no longer than the free hole 40 to that of the faces 5a . 5b extends, which of the free bore 40 is not achieved. Advantageously, the transverse bolt extends 29 over at least 0.8 times the width of the ring body 2 ,

9 shows a further preferred embodiment of a structural unit according to the invention 1 in which the clamping unit 3 from a clamping bolt 28 with a front clamping bolt thread 31 with a first thread pitch and a rear tension bolt thread 34 with a second thread pitch, as well as two transverse bolts 29 . 30 with corresponding threaded holes 35 . 36 consists. For mounting the unit 2 must the outer diameter of the first clamping bolt thread 31 smaller than the inner diameter of the threaded hole 36 of the second clamping bolt thread 34 assigned, transverse pin 30 , Only this way can the clamping bolt 28 in both cross bolts 29 . 30 Screw.

The ring body 2 points to the gap 4 opposite sides of the cross bolt holes 40 . 42 Free rooms 43 . 44 on, which in the tangential direction - based on the internal thread 2c - Are sized so that their cumulative extent at least 0.5 times the pitch difference of the clamping bolt thread 31 . 34 corresponds; more preferably, it corresponds to at least twice the pitch difference of the clamping bolt thread 31 . 34 ,

The further execution of the free spaces 43 . 44 as free bores 40 . 42 and the function of the clamping unit 3 and the correspondingly formed annular body 2 correspond mutatis mutandis to the execution of a structural unit according to the invention 7 ; it will therefore not be discussed further here.

10 shows the assembly according to the invention 1 out 9 in a tangential section. The free holes 40 . 42 , which the two transverse bolt holes 37 . 39 are assigned, extend like these from an end face 5a to the other end face 5b of the ring body 2 so that the free spaces 43 . 44 on both sides of the clamping bolt 28 on the front sides 5a . 5b are designed to be directed. The central axis A1 of a transverse bolt hole 37 and the center axis A3 of the associated free hole 40 are preferably arranged parallel to each other at a distance D1; Similarly, the center axis A2 of the other cross bolt hole 39 and the center axis A4 of the associated free hole 42 at a distance D2 preferably arranged parallel to each other.

The further design and the function of the individual components correspond mutatis mutandis to the execution of a structural unit according to the invention 7 and 8th ; it will therefore not be discussed further here.

LIST OF REFERENCE NUMBERS

1

unit

2

Ring body, ring-shaped body

2a

gap end

2 B

gap end

2c

thread

3

clamping unit

4

gap

5a

front

5b

front

6

groove

6a

groove

7

elastic element

8th

O-ring cord, profile body

9

opening

10

floor area

11

side surface

12

side surface

13

radius

14

radius

15

wave spring

15a

cross-section

16

head Start

17

return

18

floor area

19

elastic section

20

groove

21

spring lip

22

web

23

wall

24

wall

25

face

26

wall

27

wall

28

clamping bolt

29

cross bolt

29a

lateral surface

30

cross bolt

31

Clamping bolt thread

32

Clamping bolt head

33

contact surface

34

Clamping bolt thread

35

threaded hole

36

threaded hole

37

Cross pin bore

38

palm

39

Cross pin bore

40

free hole

41

wall

42

free hole

43

free space

44

free space

A1

central axis

A2

central axis

A3

central axis

A4

central axis

D1

distance

D2

distance

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1390626 [0001]

Claims (28)

Assembly for axially fixing components on shafts and axles, comprising a substantially annular body ( 2 ) with an internal thread ( 2c ) and with at least one radial gap ( 4 ) and formed by this free split ends ( 2a . 2 B ), and a clamping unit ( 3 ), consisting of at least one clamping element ( 28 ) and at least one further element ( 29 . 30 ), which with the clamping element ( 28 ) is positively connected, and which of the tensioning element ( 28 ) applied clamping force in one of the free gap ends ( 2a . 2 B ) of the annular body ( 2 ), characterized in that the assembly in the direction of the longitudinal extent of at least one of assembly and internal thread ( 2c ) of the annular body ( 2 ) at least a single, axially elastic portion ( 19 ) trains. Assembly for axially fixing components on shafts and axles according to claim 1, characterized in that the at least one individual, axially elastic portion ( 19 ) projects axially beyond all other components of the assembly. Assembly for axially fixing components on shafts and axles according to one of the preceding claims, characterized in that the at least one single, axially elastic portion ( 19 ) axially over the annular body ( 2 protruding). Assembly for axially fixing components on shafts and axles according to claim 1, characterized in that the at least one individual, axially elastic portion ( 19 axially over a region of the annular body surrounding it ( 2 protruding, this area not over the longest axial extent of the annular body ( 2 protruding). Assembly for axially fixing components on shafts and axles according to one of the preceding claims, characterized in that the at least one single, axially elastic portion ( 19 ) by a separate elastic component ( 7 ) is formed, which is non-positively, positively or materially or by any combination thereof is releasably or non-detachably connected to at least one of the other components of the assembly. Assembly for axially fixing components on shafts and axles according to claim 5, characterized in that the separate component ( 7 ) consists of a rubber-elastic material or of a flexible polymer or of a hard elastic polymer or of a metal or of a metal alloy or of a composite material or of a combination of at least two of said materials. Assembly for axially fixing components on shafts and axles according to one of Claims 5 and 6, characterized in that the separate component ( 7 ) by a profile body ( 8th ) is formed. Preferably, the profile body ( 8th ) an extruded profile. Assembly for axially fixing components on shafts and axles according to claim 7, characterized in that the separate component ( 7 by at least partially around the annular body ( 2 ) circumferential O-ring cord ( 8th ) is formed. Assembly for axially fixing components on shafts and axles according to claim 7, characterized in that the separate component ( 7 at least partially around the annular body ( 2 ) circumferential PU extruded profile is formed. Assembly for axially fixing components on shafts and axles according to claim 7, characterized in that the separate component ( 7 at least partially around the annular body ( 2 ) circumferential metal profile is formed. Assembly for axially fixing components on shafts and axles according to one of claims 5 to 10, characterized in that the separate component ( 7 ) is wavy or zig-zag-shaped along its circumferential extent, and that it is aligned in the assembled state in the assembly so that the projections ( 16 ) and returns ( 17 ) of the wave shape or the zig-zag shape in the direction of the longitudinal extent of the annular body ( 2 ) point. Assembly for axially fixing components on shafts and axles according to one of claims 1 to 4, characterized in that the axially elastic portion ( 19 ) is formed by one of the components of the assembly. Assembly for axially fixing components on shafts and axles according to claim 12, characterized in that the axially elastic portion ( 19 ) through a portion of the annular body ( 2 ) is formed. Assembly for axially fixing components on shafts and axles according to claim 13, characterized in that the axially elastic portion ( 19 ) by a, axially and radially extending, spring lip ( 21 ) is formed. The spring lip ( 21 ) is through, in essence radially extending groove ( 20 ) axially from the remainder of the annular body ( 2 ) so far separated that only one footbridge ( 22 ) the spring lip ( 21 ) with the rest of the annular body ( 2 ) connects. Assembly for axially fixing components on shafts and axles according to claim 14, characterized in that the groove ( 20 ) radially outward in the annular body ( 2 ) so that the spring lip ( 21 ) is oriented radially outward, and that the remaining web ( 22 ) to the inside of the annular body ( 2 ) is oriented. Assembly for axially fixing components on shafts and axles according to claim 14, characterized in that the groove ( 20 ) radially inwardly in the annular body ( 2 ) so that the spring lip ( 21 ) is oriented radially inwardly, and that the remaining web ( 22 ) to the outside of the annular body ( 2 ) is oriented. Assembly for axially fixing components on shafts and axles according to one of claims 14 to 16, characterized in that the spring lip ( 21 ) at least partially around the annular body ( 2 ) is formed circumferentially. Assembly for axially fixing components on shafts and axles according to claim 17, characterized in that the spring lip ( 21 ) in the manner of a diaphragm spring with conical walls ( 23 . 24 ) is formed, these walls ( 23 . 24 ) the main part of the axial and radial extent of the body of the spring lip ( 21 ) limit. Assembly for axially fixing components on shafts and axles according to one of the preceding claims, characterized in that the annular body ( 2 ) at least one geometry ( 40 . 42 ), which at least one free space during assembly of the assembly on the thread of a shaft or axis ( 43 . 44 ) between the at least one further element ( 29 . 30 ) of the clamping unit ( 3 ) and the annular body ( 2 ), this at least one free space ( 43 . 44 ) substantially tangentially from the gap ( 4 ) into the annular body ( 2 ) extends into it. Assembly for axially fixing components on shafts and axles according to claim 19, characterized in that the substantially tangential extent of the free space ( 43 ) At least 0.5 times the pitch of the clamping bolt thread ( 31 ) corresponds. Preferably, the substantially tangential extension of the free space ( 43 ) At least twice the pitch of the clamping bolt thread ( 31 ). Assembly for axially fixing components on shafts and axles according to one of claims 19 to 20, characterized in that the substantially tangential extent of the free spaces ( 43 . 44 ) accumulates at least 0.5 times the pitch difference of the clamping bolt threads ( 31 . 32 ) corresponds. Preferably, the substantially tangential extent of the free spaces ( 43 . 44 ) accumulates at least twice the pitch difference of the clamping bolt threads ( 31 . 32 ). Assembly for axially fixing components on shafts and axles according to one of claims 19 to 21, characterized in that the at least one free space ( 43 . 44 ) by at least one free bore ( 40 . 42 ) in the annular body ( 2 ) is formed. Assembly for axially fixing components on shafts and axles according to claim 22, comprising at least one transverse pin ( 29 . 30 ), which in at least one transverse bolt bore ( 37 . 39 ) in the annular body ( 2 ), characterized in that the at least one free bore ( 40 . 42 ) in each case one of the at least one transverse bolt bore ( 37 . 39 ), and that the central axis (A1, A2) of the respective at least one transverse bolt bore ( 37 . 39 ) preferably substantially parallel to the central axis (A3, A4) of the respectively associated, at least one free bore ( 40 . 42 ), and that the central axis (A1, A2) in each case has a defined distance (D1, D2) to the respective associated central axis (A3, A4). Assembly for axially fixing components on shafts and axles according to claim 23, characterized in that the diameter of the individual free bore ( 40 . 42 ) is dimensioned so that the inner surfaces of the transverse bolt hole ( 37 . 39 ) from the inner surfaces of the associated free bore ( 40 . 42 ) are cut such that the resulting cutting lines of the inner surfaces are not further from the gap ( 4 ) of the annular body ( 2 ) are removed as the respective central axis (A1, A2) of the transverse bolt hole ( 37 . 39 ). Assembly for axially fixing components on shafts and axles according to one of claims 19 to 21, characterized in that the at least one free space ( 43 . 44 ) by at least one slot in the annular body ( 2 ) is formed. Assembly for axially fixing components on shafts and axles according to one of claims 19 to 21, characterized in that the at least one free space ( 43 . 44 ) by at least one arbitrarily shaped opening in the annular body ( 2 ) is formed. Assembly for axially fixing components on shafts and axles according to one of the preceding claims, characterized in that the at least one transverse bolt bore ( 37 . 39 ) is cylindrical. Assembly for axially fixing components on shafts and axles according to one of Claims 22 to 24 and 27, characterized in that the at least one free bore ( 40 . 42 ) is cylindrical.

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