DE3215887A1 - Taper clamping arrangement for connecting an outer component to an inner component having a cylindrical outer surface - Google Patents

Abstract

A taper clamping arrangement for connecting a hub to a shaft. A first taper ring arrangement is arranged in the interspace between the inner circumference of the hub and the outer circumference of the shaft. A second taper ring arrangement is seated on an extension of the component having the hub, the said extension extending axially towards that side of the component which is opposite the recess and resting by its inner circumference on the shaft. This extension is clamped fast on the shaft by the second taper ring arrangement. Both taper ring arrangements are tightened by common clamping screws extending parallel to the axis. During tightening, there is no axial shift of the component having the hub relative to the shaft.

Description

The invention relates to a cone clamping arrangement the dom preamble of claim 1 underlying Art.

Such a cone clamping arrangement is known from DE-OS 31 4 5 521, which is part of the prior art. The two conical ring arrangements here comprise a common double conical ring, which with its cylindrical Inner peripheral surface on one of the inner components Trowel is seated and has conical surfaces inclined towards the outside as outer circumferential surfaces. Beida cone ring arrangements, which can be designed differently, sit inside the recess on the two Conical surfaces of the double conical ring. The disadvantage here is that the position of the outer component relative to the inner Component is not clearly fixed in the axial direction because when tightening the clamping screws an axial Displacement of the outer component takes place over the conical surfaces of the inner component.

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The invention is based on the object of providing a cone clamping arrangement according to the preamble of claim 1 design the corresponding type so that when tensioning there is no displacement of the outer relative to the inner component can occur.

This object is achieved by the invention presented in claim 1. As a result of the projection, which is directly adjacent to the inner component, the outer component is fixed with respect to the inner component during clamping, which remains independent of the torque applied to the clamping screws. This is achieved in that the sweeter component is connected directly to the inner component, while in the known embodiment the outer component is separated from the inner component by the double-conical ring and is shifted onto the double-conical ring when tensioned.

The second cone ring assembly that sits on the outside of the neck, of course, has an outer cone ring that is not slit and the one to compress the / msaztes can apply the required ring tension on the inner component.

A particular advantage is that this outer ring according to claim 2 as a drive wheel, in particular Gear, can be formed.

This not only facilitates the production of the components consisting of the outer conical ring and the outer component Unit, but also allows one of these elements to be replaced without replacing the other would have to.

This is particularly important when the outer component is a rail wheel. Firstly, this requires a relatively precise positioning in / axis direction, which is carried out by the lack of a shift towards the outer 3auLeils the inner component guaranteed in the invention, and also wears out relatively quickly, so that replacement processes

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occurrence. The drive gear, which when tensioning is combined with the impeller, does not need to be replaced when the impeller is worn.

If there is another important application, if the outer component according to claim 4 has a radial f.] ansj is, by means of which, for example, a gear is coupled to the shaft. Here, too, it comes down to one precise rxial position of the flange. Another Vurtej consists in the fact that the torque is introduced directly from the flange into the shaft via the shoulder and j · does not have to be transmitted via a conical ring arrangement. This sits on the outside of the shoulder and is free of torque.

The design of the cone clamping arrangement can be in ι ^; take place individually according to claim 5.

Such a construction has the advantage that the clamping screws in the circumferential direction compared to the outer component are also fixed, so that it is difficult to slip through the first conical ring assembly.

Exemplary embodiments of the invention are shown in the drawing. The top half leaves the fixing an impeller on a shaft, the lower half recognize the definition of a flange on a shaft.

In the case of the conical clamping order in the upper half of the drawing, designated as a whole by 100, there is a a cylindrical shaft with an outer circumference 2 an impeller 3 in the form of a thick disk with cinor on the outside * circumference elaborated running surface 4 and two-sided thrust flanges 5 set. The one forming the outer component Impeller 3 has a cylindrical recess 6, which is open to the right according to the drawing and after on the left in a plane perpendicular to the axis of the shaft 1 through a cross-section directed towards the shaft 1 Web 7 is limited, which extends almost to the

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Shaft 1 extends and at its edge facing this merges into a sleeve-like extension 8, which is after which extends the recess 6 opposite side and with its cylindrical inner peripheral surface 9 on the Wave 1 rests.

To fix the impeller 3 on the shaft 1, a first conical ring arrangement 10, which is located in the recess 6 sits, and a second conical ring arrangement 20, with which the extension 8 is clamped on the shaft 1.

The conical ring assembly 10 comprises an inner conical ring 11, which with its cylindrical inner peripheral surface 12 rests on the shaft 1 and has a conical outer peripheral surface 13, which has a cone angle lying in the self-locking area with according to the drawing on the right having located apex. The conical ring 11 is relative thin-walled and slotted at one point, which is why no hatching is indicated in the drawing. On the Conical surface 13 sits an outer conical ring 14, which can also be slotted and with its conical inner surface 15 on the conical surface 13 and with its cylindrical outer peripheral surface 16 in the cylindrical recess 6 of the impeller 3 is applied. The conical ring 14 has through bores distributed over the circumference on a pitch circle 17, through which clamping screws 18 pass, the aligned through bores 19 in the web 7 of the impeller 3 also reach through.

The conical ring arrangement 10 thus consists of two conical rings 11, 14 which form an independent clamping set, in the annular space between the outer circumference of the shaft 1 and the inner circumference of the recess 6 can be used.

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In the case of the conical ring arrangement 2O, on the other hand, a conical surface 21 is formed on the outer circumference of the projection 8 itself. This therefore belongs to the Konusrinu.inordnung 20. On the conical surface 21 sits an unslotted and relatively strong cross-section having conical ring 22, which interacts with its conical inner peripheral surface 23 with the conical surface 21, ie has the same self-locking cone angle. The conical ring 22 also has threaded bores 24 which are aligned with the through bores 17 and 19 and into which the clamping screws ¹ 18 engage. When the clamping screws 18 are tightened, the conical rings 11, 14 slide on Czn conical surfaces 13, 15 and the I conical rings 8, 22 slide on the conical surfaces 21, 23. In the area on the right in the drawing, the impeller 3 is clamped onto the shaft, in the area on the left the extension 8.

The conical ring 22 has in the embodiment a toothing 25 via which the drive torque can be transmitted to the impeller 3 and the shaft 1.

In the lower embodiment according to the drawing, a flange 33 is set on the shaft 1, which is in the Near its outer circumference has through bores 34, by means of which the coupling, for example, to a gear can be done.

So much for the parts with the upper half of the drawing; match, the same reference numbers are used.

In the recess 6 of the flange 33 is a conical ring assembly 40 is provided which has an outer cone ring 1 ¹ with self-locking cone angle, but instead of the ainen cone ring 11 two cone rings 31,32 are provided one above another in the. The conical ring 32 forming an intermediate ring has on its outer circumference a conical surface interacting with the conical surface of the outer conical ring 14 with a conical angle lying in the self-locking area and a conical surface 35 on its inner circumference

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over the cone angle lying in front of the self-winding area, at which the innermost conical ring 31, seated on the shaft 1 and resting in the axial direction on the web 7, carries the corresponding outer conical surface. When the tensioning screws 18 are tightened, the conical ring 32 initially shifts to the left as shown in the drawing until it stops on the conical surface 35 lying inside the self-locking area and the further shift only continues along the conical section 1 of the conical ring 14 in the self-locking area with a correspondingly large conversion the axial force of the clamping screws 18 takes place in radial clamping force. The design can also be such that the central conical ring 32 comes to rest on the web 7 from a certain clamping condition with its left end according to the drawing.

When the angle of the console surface 35 is greater than the self-locking angle than the angle the conical surface 15 is below, when loosening the clamping screws 18, the conical ring arrangement 40 loosens itself without the need for special loosening screws. This is an advantage over a simple conical ring arrangement such as for example the conical ring arrangement 10, in which space is left in the circumferential direction in some places for impression screws must become. It is of course understood that conical ring assemblies 40 also in the case of the one shown in the drawing above Impeller attachment can be used.

The extension 38 of the flange 33 does not have a conical, but a cylindrical outer peripheral surface 41. The conicity is produced by a pushed-on thin-walled conical ring 42 slotted at one point, which lies against the web 7 when it is tightened and with its conical outer circumferential surface 4 3 in the self-locking area lying angle with the corresponding

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conical inner circumferential line 44 of the sweeter unslit · Conical ring 45 cooperates with a strong cross-section. De: outer conical ring 45 box has no additional function in this exemplary embodiment, but only serves to don Clamp approach 38 on the shaft. The approach 38 may also be slit at one point, as through the Missing hatching in the lower half of the drawing is recognizable. Of course, approach 8 can also be used in the

The upper half of the drawing have a ring slot. The conical rings 42, 45 together form the conical ring arrangement 50. \

In principle, the thick conical ring 14 of the conical ring arrangements 10, 40 which dufneh the clamping screws 18 can also be arranged on the inside, ie on the shaft 1. ^This: but is not a preferred embodiment because of the Te circle is leadership form larger for the clamping screws 18 in the illustrated Au · and more locking screws can be accommodated on the circumference.

Claims (5)

Claims 1. / cone clamping arrangement for connecting a one Outer component having a cylindrical recess over at least part of its length, in particular one Hub, with an inner one which is arranged concentrically in the recess and has a cylindrical outer surface Component, in particular a wool, with a first, in an intermediate space between the inner circumference of the recess and outer circumference of the inner component arranged coaxial conical ring arrangement for mutual bracing of the components, with a second conical ring arrangement provided at an axial distance from the first conical ring arrangement for mutual bracing of the components and with through bores of one conical ring arrangement distributed over the circumference cross-cutting and axially parallel engaging in threaded bores of the other conical ring arrangement Clamping screws, by means of which both conical ring arrangements can be clamped at the same time, characterized in that, that the outer component (3,33) has a sleeve-like extension (8,38), which by means of the on the outer circumference of the extension (8, 38) arranged second conical ring arrangement (20, 50) on the inner component (1) can be braced. 2. cone clamping arrangement according to claim 1, characterized in that the outer ring (22) of the second cone ring arrangement (20) is designed as a drive wheel, in particular a gear wheel (25). 3. cone clamping arrangement according to claim 1 or 2, characterized in that the outer component (3) is a Rail runner is. 4. cone clamping arrangement according to claim 1 or 2, characterized in that the outer component (33) is a Radial flange is. 5. cone clamping arrangement according to one of claims 1 to 4, characterized in that the recess (6) of the outer component (3, 33) in a longitudinal section axially through a web (7) directed towards the inner component (1) is limited, which on its inner edge directed towards the side facing away from the recess (6) approach (8,38) and is penetrated by the tensioning screws (18).