Zf Friedrichshafen Ag

Zf Lemforder Metallwaren Ag

Pnp Automotive Gmbh

Torsten Baustian

Stefan Beetz

Gerald Festner

Klaus Reichel

Winfried Krüger

Christian Klasen

Winfried Krueger

Klaus Reichei

Jochen Peters

An improve spring rate of a stabilizer is provided with an extended spring length. An inner rotary part () of an oscillating motor () and a second stabilizer part () are connected to one another with a non-positive connection (force transmitting friction connection) designed such that the axial center of the force-transmitting length of the second stabilizer part () and the axial center of the force-transmitting length of the inner rotary part () are located on a common radial plane. The non-positive connection between the inner rotary part () and a fitting cylinder () of the second stabilizer part () is formed either from a shrunk-on fit or a toothed part () and a fitting part (), wherein the toothed part () and the fitting part () are likewise shrunk on.

Split stabilizer with optimized spring rate

Swivel motors have a large number of tightness problems on the inside, in particular in a broad operating temperature range. Therefore, to improve the tightness over a temperature range of &#x2212;40&#xb0; C. to +130&#xb0; C., a sealing device () is provided with an inner soft sealing element () and a plurality of outer rigid sealing elements (). The soft sealing element () and the rigid sealing elements () are undetachably connected to one another. The circumferential sealing surfaces of the rigid sealing elements (), in the unloaded state, close flush with the sealing surface of the soft sealing element (). The rigid sealing elements () are spaced apart from one another by at least one radial compensating groove () and at least one axis-parallel compensating groove (). The compensating grooves () are arranged on both sides of the sealing device, such that the compensating grooves () on one side are not overlapped by the compensating grooves () on the other side.

Sealing device for a radial swivel motor

A connection of the stabilizer parts of a two-part stabilizer to an actuator is usually performed in a positive-locking manner, as a result of which an additional axial securing and hydraulic sealing toward the outside become necessary. To simplify the design and the manufacturing process, it is provided that the teeth between the outer rotary part () and the second stabilizer part () be made clearance-free and welded together by a circumferential weld seam (), wherein the seam area is preheated to a temperature of 350&#xb0; C. and subsequently cooled to a martensite content of 30% in the microstructure.

Split stabilizer and process for establishing a toothed connection of the outer rotary part to one of the two stabilizer parts

Growing community of inventors

Crivitz, Germany

Torsten Baustian