DE102007000659A1 - Form-fit joint e.g. spline profile, for transferring torque from e.g. toothed wheel, to e.g. shaft, connects components, where set guidance surfaces of one of components cooperate with another set of surfaces of other component - Google Patents

Abstract

The joint connects two components (1, 8) e.g. toothed wheel and shaft, in which one of the component has cutting teeth (2). Guidance surfaces (4-7) of the respective components are arranged on sides of the teeth. The surfaces (4, 5) of the component (1) cooperate with the guidance surfaces (6, 7) of the component (8) during establishment of a connection before and during interference of the cutting teeth into the component (8) such that the components are centered to each other. The component (1) with the cutting teeth has the guidance surface (5) with a smaller diameter than the teeth.

Description

The The invention relates to a positive connection of two toothed interlocking components the type defined in the preamble of claim 1 in more detail.

Interlocking Connections, such as splined profiles, splines or splines, are used to produce torque from one Transfer component to the other component.

at positive connections of the type mentioned are after Make the connection both components toothed, with the gears mesh. To achieve a higher carrying percentage and at the same time only having to pre-tine a component, is in the generic form-fitting Connection the teeth of the second component of the toothing the first component when connecting, wherein the teeth of the first component designed as cutting teeth is.

The DE 23 47 372 A1 discloses a positive connection in which the first component has a cutting toothing, which cuts the toothing in the second component when making the connection. So that the component does not tilt when cutting the toothing, the hydraulic ram, which transmits the pressing force to the component, must have a corresponding rectangular surface in order to guide the component to be pressed in sufficiently.

Of the present invention is based on the object, a form-fitting To create connection by means of a cutting teeth, which on a simple way to make it.

The Task is with a, even the characterizing features of the main claim having, generic positive locking Connection solved.

The positive connection has two components, which are provided with a toothing, wherein the teeth mesh. The toothing of a component is designed as a cutting teeth and cuts into the other one while making the connection Component, whereby the toothing is produced in the other component. Preferably the cutting teeth on a chip chamber, in which collect the chips when making the toothing. Adjacent for cutting teeth guide surfaces are arranged, these guide surfaces with guide surfaces of the other component cooperate to center the two components. The centering takes place before the engagement of the cutting teeth the other component instead, which also causes an eccentric application the pressing force does not have a negative effect. The guide surfaces are arranged on both sides of the cutting teeth, whereby the length the guide surfaces can be reduced, and Nevertheless, sufficient centering is possible.

It there is the possibility of the positive connection over to secure a circlip against loosening.

In A further embodiment of the invention forms a guide surface the outer diameter of the teeth to be cut.

In Another embodiment is the diameter of the cutting teeth opposite one of the two guide surfaces set back so that the two components are not statically over-determined to each other are arranged.

Further Features are shown in the figure description.

It demonstrate:

1 the positive connection before making the connection and

2 the positive connection after the production of the compound.

1 :

A first component 1 has a cutting teeth 2 with a chip chamber 3 on. A first guide surface 4 and a second guide surface 5 are adjacent to the cutting teeth 2 arranged. The cutting teeth 2 is opposite the guide surface 5 arranged set back in their diameter. The guide surface 4 is opposite the cutting teeth 2 arranged set back in their diameter. The guide surfaces 4 and 5 so act with the guide surfaces 6 and 7 together, that, before the first component 1 with the second component 8th over the cutting teeth 2 engages, the first component 1 to the second component 8th over the guide surfaces 4 . 5 . 6 and 7 is centered. Intersects the cutting teeth 2 in the second component 8th , so the resulting chips in the chip chamber 3 added. Preferably, the guide surface 6 formed in diameter so that they simultaneously the outer diameter of the cutting teeth 2 sliced toothing forms. To prevent loosening of the finished connection, snaps in the final state of the locking ring 9 in the groove 10 , By the cutting teeth on both sides 2 guide surfaces 4 . 5 . 6 and 7 can be arranged, a tilting of the first component 1 to the second component 8th be prevented.

In a further embodiment of the invention, it is possible, the guide surface 4 to the guiding surface 6 and the guide surface 5 to the guiding surface 7 form as a press fit, which in addition torque can be transmitted via the interference fit.

2 :

The first component 1 is designed as a gear and the second component 8th is as a wave for the first component 1 educated. The torque is over the toothing 2 transfer. The circlip 9 prevents loosening of the connection. On both sides of the cutting teeth 2 are guide surfaces 4 . 5 . 6 and 7 arranged.

1

first component

2

cutting teeth

3

flute

4

guide surface

5

guide surface

6

guide surface

7

guide surface

8th

second component

9

circlip

10

groove

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 2347372 A1 [0004]

Claims (5)

Positive connection of two with a toothing ( 2 ), interlocking components ( 1 . 8th ), wherein the connection is made by one of the two components ( 1 ) a cutting toothing ( 2 ), which in the manufacture of the compound in the other component ( 8th ), characterized in that on each side of the cutting teeth ( 2 ) a guide surface ( 4 . 5 . 6 . 7 ) is arranged, wherein in establishing the connection before and during the engagement of the cutting teeth ( 2 ) into the other component ( 8th ) both guide surfaces ( 4 . 5 ) with corresponding guide surfaces ( 6 . 7 ) of the other component ( 8th ) so that both components ( 1 . 8th ) are centered to each other. Positive connection according to claim 1, characterized in that the guide surfaces ( 4 . 5 . 6 . 7 ) are cylindrical, wherein the component ( 1 ) with the cutting teeth ( 2 ) a guide surface ( 5 ) with a smaller diameter and a guide surface ( 4 ) with a larger diameter than the cutting teeth ( 2 ) having. Positive connection according to claim 1, characterized in that the two components ( 1 . 8th ) in the connected state via a retaining ring ( 9 ) are held. Positive connection according to claim 1, characterized in that the cutting teeth ( 2 ) a chip chamber ( 3 ) having. Positive connection according to claim 1, characterized in that the component ( 8th ), in which the toothing is cut, a diameter ( 6 ) has the guide surface which corresponds to the outer diameter of the cut teeth.