DE102015202068A1 - Flange for a roll stabilizer and associated roll stabilizer - Google Patents

Abstract

Flange (3) for a roll stabilizer (1) with a powder-coated recess (7) for a plug (8).

Description

The invention relates to a flange for a roll stabilizer with a recess for a plug.

Conventional roll stabilizers are designed to rotate a split torsion bar of a chassis of a motor vehicle during cornering in dependence on the lateral acceleration and possibly other parameters in order to reduce the inclination of the vehicle body during cornering. A roll stabilizer comprises a hydraulic or a mechatronic actuator, with an electric motor and a corresponding control unit and a transmission. The transmission can be designed as a single-stage or multi-stage planetary gear. The roll stabilizer further comprises a sensor for detecting an acting torsional moment.

The roll stabilizer comprises a housing which is closed on both sides by a flange, the two flanges are each connected to a torsion bar.

At least one flange of the roll stabilizer has a recess or an opening, so that a plug can be inserted from the outside, which can be inserted into a socket arranged in the interior of the housing. To the plug a multi-core cable is attached to provide the roll stabilizer both electrical energy and data lines and / or control lines available.

However, electromechanical actuators in the chassis area are very much exposed to environmental influences such as rain, salt water, de-icing or dust. In addition, they are subject to strong temperature fluctuations, whereby the humidity in the region of the plug connection to the flange often fluctuates, whereby corrosion is favored. In a conventional roll stabilizer, the plug is usually provided with a lip seal, which is pressed in the assembled state against metallic surfaces of the through hole for the plug to prevent ingress of moisture and other contaminants into the interior of the housing. The problem with this is that the recess provided for the plug is produced by machining, for example by drilling and / or turning, so that there is the possibility that a ridge remains on one edge of the recess. When attaching the plug there is a risk that its lip seal is damaged by the ridge. In this case, moisture can penetrate through the flange into the interior of the housing, whereby the function of the electronic and electromechanical components can be impaired.

The invention is therefore based on the object of specifying a flange for a roll stabilizer, which ensures a reliable seal, even if the flange has a ridge in the region of the recess.

To solve this problem is inventively provided in a flange of the type mentioned that the recess is powder coated.

The invention is based on the idea that undesired damage to the plug, in particular its lip seals, can be avoided by powder-coating the recess. The powder coating also covers an optional burr with a layer of varnish, which causes a sharp edge to disappear. If the recess is powder-coated, it can thus not come to a violation of seals of the plug. This prevents damage during assembly of the plug, at the same time the plug is protected by the intact seal during operation against corrosion.

A preferred variant of the invention provides that the recess has at least one step with an inwardly reducing diameter, which is preferably conical. Such a conical step serves as an insertion bevel for the plug, so that it is forcibly brought into the correct position. Preferably, the recess is over its entire length, d. H. from one side of the flange to the opposite side, powder-coated.

It is also within the scope of the invention that the flange is cylindrical and has a powder-coated peripheral surface. The powder coating gives the peripheral surface a corrosion protection layer so that a long service life can be expected. As part of the production, the peripheral surface can be powder-coated together with the recess.

In addition, the invention relates to a roll stabilizer, comprising a housing in which an electromechanical actuator is accommodated, with two flanges arranged on opposite sides of the housing, of which at least one has a powder-coated recess of the type described and a plug which can be plugged or inserted into the recess.

The invention will be explained below with reference to an embodiment with reference to the drawings. The drawings are schematic representations and show:

1 a partially broken invention roll stabilizer;

2 a detail of in 1 shown roll stabilizer in the region of the plug;

3 a flange according to the invention with a torsion bar, and

4 a detail of in 3 shown flange in the region of the recess.

The in 1 shown roll stabilizer 1 essentially comprises a housing 2 , in which an electromechanical actuator is incorporated, which in 1 only partially shown. On both axial sides of the housing 2 are flanges 3 . 4 provided, each flange 3 . 4 is with a torsion bar 5 . 6 connected. The one in the case 2 recorded electromechanical actuator comprises a drive motor which is designed so that it can generate a torsional moment by which the two torsion bars 5 . 6 are rotatable against each other.

2 shows a detail of in 1 shown roll stabilizer 1 on an enlarged scale. The flange 3 has an axial recess 7 on, which has a round cross-section. This opening allows the insertion of a plug 8th in one inside the case 2 arranged socket 9 , resulting in the plug 8th connected electrical lines with corresponding plug contacts of the socket 9 be contacted electrically. In 2 you realize that the plug 8th on its outside lip seals 10 having, whereby the recess 7 is sealed in the circumferential direction. This prevents environmental influences such as rainwater, salt water and dust in the interior of the housing 2 reach.

3 shows the flange 3 that with the torsion bar 5 connected is. In the enlarged view of 4 you realize that the recess 7 an outer section 11 , an adjoining stage 12 and an inner section 13 having. The recess 7 forms a breakthrough to insert the plug 8th , the conically formed step 12 serves as an insertion bevel for insertion of the plug 8th , accordingly, the inner section 13 a smaller diameter than the outer portion 11 on.

As it is in the manufacture of the recess 7 , which is produced for example by drilling and / or turning, can not be excluded that sharp edges or a ridge remain, is the recess 7 powder coated. Likewise, the peripheral surface of the flange 3 provided with a powder coating. An optional burr is covered with varnish so that the sharp edge disappears. This will prevent the lip seal 10 of the plug 8th damaged during insertion, which could otherwise lead to permanent leakage. The coating by the powder coating thus protects the plug 8th during installation against damage and during operation against corrosion.

LIST OF REFERENCE NUMBERS

1

 roll stabilizer

2

 casing

3

 flange

4

 flange

5

 torsion bar

6

 torsion bar

7

 recess

8th

 plug

9

 Rifle

10

 lip seal

11

 section

12

 step

13

 section

Claims (4)

Flange ( 3 ) for a roll stabilizer ( 1 ), with a recess ( 7 ) for a plug ( 8th ), characterized in that the recess ( 7 ) is powder-coated. Flange according to claim 1, characterized in that the recess ( 7 ) at least one stage ( 12 ) having an inwardly reducing diameter, which is preferably conical. Flange according to claim 1 or 2, characterized in that the flange ( 3 ) Is cylindrical and has a powder-coated peripheral surface. Roll stabilizer ( 1 ), with a housing ( 2 ), in which an electromechanical actuator is accommodated, with two on opposite sides of the housing ( 2 ) arranged flanges ( 3 . 4 ), of which at least one according to one of claims 1 to 3 is formed and one in the recess ( 7 ) plug-in or plug-in connector ( 8th ) having.

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