DE1982256U - DRIVE SHAFT WITH SLIDING SHAFT COUPLING, IN PARTICULAR FOR MOTOR VEHICLES. - Google Patents

Description

i -.ν. πί & έϋϊϊί--

:? "," ■,., - RA./17PZ*1 b .. "..

^i; ' ^J ''BAYERISCHE MOTOREN WERKE AKTIENGESELLSGHAPT, Munich <Jj

Nov 22, 1967

Longitudinally displaceable shaft coupling, especially for drive shafts of motor vehicles

The innovation relates to a longitudinally displaceable shaft coupling, in particular for drive shafts of motor vehicles, where two shaft parts can be slid into one another by means of a splined shaft profile are arranged and further being on the end of the outer Shaft part is a compression fitting, consisting of a thread arranged on the named end and a clamping nut is, .

There are known drive shafts for motor vehicles in which the longitudinally displaceable shaft coupling after the assembly of the drive shafts dur.ch a Klemmversohraubung can be established, so that the play of the spline is eliminated and resulting Vibrations and noises are excluded. The Klemmverohraubung consists of a lock nut with a clamping cone that is axially offset from the thread. As a counterpart to this clamping nut, the end of the outer shaft part is provided with an external thread to which a to End face of the shaft end adjoins a tapering cone. The named shaft end is provided with axially leading slots, so that a compression of the tubular shaft cross-section is made possible by means of the clamping nut.

Such a training dojr 'compression fitting requires a high -Production effort with tight machining tolerances. The innovation is based on the task of creating a compression fitting for the above Purpose to carry out with less processing effort. For this purpose, the innovation in the type mentioned above is that the lock nut axially over the end of the outer Shaft parts a protrudes whose end lying in this direction is retracted radially inward to the inner shaft part and in an annular space formed in this way, a ring made of elastic or plaetieoh deformable material enclosed and under pressure is clamped. With this structure, the innovation achieves with

105OtO

■ jf 1 ■ - "- V:

Nov 22, 1967

the simplest means a backlash-free connection between the two Shaft parts. This is how the cones come on the clergy and on the outside Shaft part as well as the axial slots on the outer shaft part in ■ Port case · Since it is precisely this machining of the components that requires considerable Jiloh says when it comes to firing a "very substantial reduction. ■

The innovation enables a further · - cheaper training that the clamping nut consists of a Fließjreßteil. To a squeeze of the ring made of elastically or plastically deformable material , to close, it is provided that between the retracted end the clerical nut and the ring made of malleable material a metal ».

.The pressure ring is arranged. Finally, it is also planned ; Deformable ring made of elastic plastic or plastic ·; ■ foam "consists. ·

■ ^f In the drawing, the innovation is shown using an exemplary embodiment. It shows a section from a cardan shaft for motor vehicles in the area of the shaft coupling ^{1 of} its two shaft parts, which can be displaced.

A cardan shaft for motor vehicles consists of two shaft parts 2 and 3 arranged to be slidable one inside the other by means of a splined shaft profile 1. The outer shaft part 3 has a thread 4 on its end, onto which a clamping nut 5 is screwed. The small nut 5 protrudes beyond the end face V of the outer shaft part 3 and is drawn in ^{radially inward on this side 5 1} toward the inner shaft part 2. In this way, an annular space 6 is then formed on the end face 3 ', of the outer shaft part 3, in which a ring 7 made of elastic plastic or plastic foam is clamped "under pressure" in order to screw on the clamping nut 5, which is designed as a pressed part A metal pressure ring 8 is provided to exclude the possibility of the ring 7 getting caught under the rounded, drawn-in side 5 ^{1 of the clamping nut 5.}

WM ^^ Älngrauia, 6 clamped and pressurized ring 7 made of * plastic or plastic foam provides a backlash-free connection between the outer shaft part 3 and the inner shaft

BNIW «SO HD

:,: ■ ·; ; ^ 3- Nov. 22, 1967

part 2. Due to the pressure acting on it, the ring 7 « the one purely cylindrical basic shape or one inside with the Keilw'ellenprofil 1 has a corresponding shape in the Keilweilenprofil 1 in ^ un ^ J & oii / ohl a, n the frontal curses 3 'des outer shaft part 3 ale also, to the inner surface of the terminal nut depressed. The ring·? "rival" both shaft parts 2 and 3 epielfr.ei with each other, so that otherwise due to the play in the spline shaft profile possible vibrations and noises in a simple manner Way to be excluded.

Protection claims:

Claims (1)

■ Λ ■; ■■■. ; : ■. ■ '■ .. ■■■■' ■■■; -. 4- .-: Nov. 22, 1967 Protection claims; 1 «Longitudinally displaceable shaft coupling, especially for drive shafts of motor vehicles, with two shaft parts using a spline are arranged to be displaceable within one another and wherein, furthermore, a clamping screw on the end of the outer shaft part exercise consisting of one arranged on said end Thread and a wedge nut, characterized in that the wedge nut (5) protrudes axially beyond the end of the outer shaft part (3), the end (5 ') of which in this direction is radially inward towards the inner shaft part (2) is drawn in and a ring (7) made of elastically or plastically deformable material in an annular space (6) formed in this way is enclosed on all sides and clamped under pressure. 2, longitudinally displaceable shaft coupling according to claim 1, characterized in that that the gill nut (5) from an extruded press. consists. 3 · Shaft coupling according to claim 2, characterized in that between the drawn-in end (5'λ of the clamping nut (5) and the Ring (7) made of elastically or plastically deformable material, a metallic pressure ring (8) is arranged. 4 »Shaft coupling according to one of claims 1 to 3, characterized in that that the ring (7) made of elastic plastic or. Plastic foam is made. BMW-1090 HO