DE102018119819A1 - Coupling test stand upper part with rotatable and fixable swivel holder - Google Patents

Abstract

The invention relates to a tool (1) for use in a test bench (2), which is designed to test a motor vehicle clutch (3), comprising an upper part (4) that is used to contact the motor vehicle clutch (3) is held in a lower part (5) of the test bench (2), the upper part (4) being designed as a holding member (6) for a plurality of hold-down devices (7) and the hold-down device (7) for contacting a component of the motor vehicle clutch (3) are designed, at least one rotary holder (8) which can be fixed in its position being provided for fixing at least one hold-down device (7) on the holding member (6).

Description

The invention relates to a tool for use in a test bench, which is designed for checking a motor vehicle clutch, comprising an upper part, which is provided for contacting a clutch, which is held in a lower part, the upper part as a holding member for a variety of Hold-down devices are designed and the hold-down devices are designed to come into contact with a component of the coupling, such as a pressure plate.

Such tools are already known from the prior art. For example, the applicant uses a tool for testing friction clutches, in particular double clutches or single clutches. Various hold-down devices are attached directly to an upper part, which is designed like a tension ring, by means of screw connections. In addition, there are square plates adjacent to the hold-downs, to the exclusion of any change in position of the hold-down.

In the test cycle, the upper part is moved in the direction of the lower part and components of the hold-down device come into contact with the coupling. For example, pressure pins press on the pressure plate via cover contact elements. However, separate tools must be kept available for each coupling. Since couplings are of different heights and widths, in particular the radial extent of a coupling from a first series to a coupling from another series varies, different tools must also be kept available. This is very expensive.

It is the object of the present invention to intervene to improve this. In particular, it is the task of saving spare parts during assembly. Furthermore, faster set-up should be made possible. It should also be avoided that a new tool, in particular a tension ring-like upper part with hold-down devices, is to be used on different pitch circles for each product.

This object is achieved according to the invention in a generic tool in that at least one rotary holder which can be fixed in one position is provided for fixing at least one hold-down device on the holding member.

Different angles of the hold-down devices to the center of the tool can then advantageously also be set.

Advantageous embodiments are claimed in the subclaims and are explained in more detail below.

So it is advantageous if the holding member is designed as a clamping ring. The advantage that arises concerns, among other things, a lighter design, which leads to shorter test times.

If the rotary holder is designed as an articulated turntable on the holding member or as an articulated turntable on the holding member, the costs for producing the tool can be minimized. The rotary holder is therefore a rotatable element, which is preferably rotatably connected to the clamping ring about its central axis.

It has also proven useful if the rotary holder is mounted centrally, for example via a (collar) screw and at least one hold-down or several hold-downs is / are eccentrically connected to the rotary holder.

It is expedient if the rotary holder can be rotated around a screw screwed in around the clamping ring or a bearing element fixed there and / or is held there by means of the screw or the bearing element.

An advantageous exemplary embodiment is also characterized in that a locking component acts on the rotary holder in such a way that the rotary holder can be fixed in different rotational positions relative to the clamping ring, for example in a form-fitting manner.

If the positive connection is formed by the interlocking of a projection-like section of the locking component, for example a button, in a preferably circular section-like recess, for example on the outer circumference of the turntable, then the further processing of the rotary holder remains simple and the preselected position is effectively maintained.

Due to the construction shown, a rotatably mounted disc is locked in its clamping position on different pitch circles. The tool can be used for travel-dependent clutches (TACs). Truck couplings in particular can be easily checked.

In order to be able to assemble printing plate assemblies of different diameters or with different hole patterns on the same assembly line in a simple manner, without having to laboriously convert the clamping ring or holding-down device, it is now proposed to turn the clamping ring or holding-down device at each mounting point, which has the pitch circle or the receiving diameter has to be changed. Different mounting points and angles can be used.

The invention also relates to the entire test bench, in which a special lower part is also used in addition to the upper part.

This lower part is prepared for holding a coupling, the coupling being provided for contacting a hold-down device arranged on the upper part of the test stand. This lower part is then improved so that at least one rotatable intermediate piece is connected to the lower part, which is prepared for holding a coupling component, such as a pressure plate. It is advantageous if the intermediate piece is designed as a turntable or turntable on which a centering pin or a plurality of centering pins can be / are attached for engaging in recesses on the coupling component. It is also advantageous if the intermediate piece is mounted centrally, for example anchored eccentrically on the turntable by means of a (collar) screw and a centering bolt.

It has proven useful if the intermediate piece is fixed / locked / locked in its relative position to a main body of the lower part designed as a ring by means of a form-locking means, which is prepared for engaging in a circular segment-like recess, for example, on the outer circumference of the intermediate piece. A further development relates to such a configuration, in which the centering pin has a central collar area, which on one side merges into an anchoring area for fixing to the intermediate piece and on the other side merges into a dome-like coupling contact pin.

It is advantageous if there is an outer diameter jump at the axial ends of the collar region.

The invention is explained in more detail below with the aid of a drawing.

• 1 eine perspektivische Ansicht eines Ausschnitts eines Prüfstandes, in das ein Werkzeug eingesetzt ist, das ein Oberteil und ein Unterteil besitzt, wobei am Oberteil acht Niederhalter angebunden sind,
• 2 eine singuläre Darstellung des Oberteils aus 1 in perspektivischer Darstellung mit daran über Drehhalter angebundene Niederhalter, wobei die Drehhalter zum Einstellen gewünschter Teilkreisdurchmesser oder Winkel eingesetzt sind,
• 3 eine vergrößerte teilgeschnittene Darstellung des Bereichs III aus 2,
• 4 eine vergrößerte Darstellung des Bereichs IV aus 3 auf die Drehhalter mit Aussparungen für verschiedene Teilkreisdurchmesser oder Winkel,
• 5 eine Längsschnittdarstellung durch einen Niederhalter, einen Drehhalter, einen Teil des Oberteils im Bereich eines Verriegelungsbauteils,
• 6 eine singuläre Darstellung des Unterteils des Werkzeugs aus 1 mit darin eingelegter Kupplung oder Kupplungsbestandteil,
• 7 eine singuläre Darstellung eines als Ring ausgebildeten Hauptkörpers des Unterteils aus 6,
• 8 eine perspektivische Darstellung durch einen Teilschnitt entlang der Linie VIII in 7, und
• 9 eine Vergrößerung des Zwischenstücks der 6 bis 8 mit drei daran angebrachten Zentrierbolzen.

Show it:

• 1 2 shows a perspective view of a section of a test bench, into which a tool is inserted, which has an upper part and a lower part, eight hold-down devices being connected to the upper part,
• 2 a singular representation of the top 1 in a perspective view with hold-down devices connected to it via rotary holders, the rotary holders being used to set the desired pitch circle diameter or angle,
• 3 an enlarged partially sectioned view of the area III out 2 .
• 4 an enlarged view of the area IV out 3 on the rotary holder with recesses for different pitch circle diameters or angles,
• 5 2 shows a longitudinal sectional view through a hold-down device, a rotary holder, part of the upper part in the area of a locking component,
• 6 a singular representation of the lower part of the tool 1 with a clutch or clutch component inserted therein,
• 7 a singular representation of a main body of the lower part formed as a ring 6 .
• 8th a perspective view through a partial section along the line VIII in 7 , and
• 9 an enlargement of the intermediate piece of the 6 to 8th with three centering bolts attached to it.

The figures are only schematic in nature and only serve to understand the invention. The same elements are provided with the same reference symbols.

In 1 is a tool 1 shown for use in a test bench 2 is provided. In the test bench 2 is a motor vehicle clutch 3 to consider. Under such a motor vehicle clutch 3 is understood to be a friction clutch used in a drive train of a car, a truck or another commercial vehicle. This includes single clutches, double clutches, multi-disc clutches and multi-plate clutches, etc.

The tool 1 has a top 4 , The top 4 is for interacting with a base 5 intended. The top 4 is designed as a holding element on the hold-down device 7 are attached.

The eight hold-down devices available in the exemplary embodiment 7 are for contacting, for example, a pressure plate of the clutch / automotive clutch / automotive clutch 3 designed.

On the upper part designed like a tension ring 4 grab rotary holder 8th at that well in 2 can be seen in 1 but are covered in perspective.

Coming back on 1 be on pressure pens 9 referenced at the distal end of the hold-down device remote from the upper part 7 protrude from there. The pressure pens 9 are at their distal ends by cover contact elements 10 added.

As in 2 the rotary holder is clearly visible 8th designed as a turntable.

In 3 is the central arrangement of a bearing 11 shown. The warehouse 11 is through a screw 12 provided, namely a collar screw. The hold-down 7 is attached eccentrically. It is a hold-down 7 per swivel holder 8th available.

Inside the hold-down 7 is between a spacer 13 and a pressure plate 14 a variety of disc springs 15 arranged.

There is a locking component 16 like a button 17 , This is used to position the rotary holder 8th to lock. A projection-like section takes effect 18 of the locking component 16 in a circular segment-like recess 19 of the rotary holder 8th ,

The tab-like section 18 is a bundle-like extension of the button 17 , with the entire locking component 16 by a (pressure) spring 20 is biased. Between the disc springs 15 and the push pin 9 is the pressure plate 14 arranged.

In the enlarged view in the 5 the interaction of the individual components becomes even easier to understand.

In 6 is the lower part 5 in its function when holding a clutch pressure plate of the automotive clutch 3 shown. The bottom part 5 has a mounting plate 21 on that a main body 22 provides. On this mounting plate 21 of the lower part 5 are three over the inner circumference of the ring-like main body 22 distributed spacers 23 distributed. The spacers 23 are designed in the manner of turntables and centered over bearing elements 24 on the main body 22 rotatably mounted. On every adapter 23 are three centering bolts in the present case 25 present in a recess 26 the pressure plate 14 to hold this coupling component.

The bearing element 24 is designed like a screw, especially a collar screw. There is a positive locking device 27 , by means of which the rotational position of the intermediate piece 23 on the main body 22 is locked / locked.

The form-locking device 27 is about an elastic element 28 like a (compression) spring pressed into its locking position. It engages in a circular segment-like recess 29 on.

Each centering pin has a central collar area 30 between a dome-like coupling contact pin 31 and an anchoring area 32 ,

The eccentric arrangement of the centering bolts 25 relative to a central bore into which the bearing element 24 grabs, is that 9 good to see. The recess 26 can also be called a recess.

LIST OF REFERENCE NUMBERS

1

Tool

2

test bench

3

Motor vehicle clutch / motor vehicle clutch

4

top

5

lower part

6

holding member

7

down device

8th

lock bracket

9

pushpin

10

Cover contact element

11

camp

12

screw

13

spacer

14

printing plate

15

Belleville spring

16

locking component

17

button

18

projecting section

19

circular section-like recess on the turntable

20

(Compression) spring

21

mounting plate

22

main body

23

connecting piece

24

bearing element

25

centering

26

recess

27

Fit means

28

elastic element

29

Circular segment-like recess on the intermediate piece

30

Bund area

31

Coupling pin

32

anchoring area

Claims (4)

Tool (1), for use in a test bench (2), which is designed for checking a motor vehicle clutch (3), comprising an upper part (4), which is used to contact the motor vehicle clutch (3), which is located in a lower part ( 5) of the test bench (2) is provided, the upper part (4) being designed as a holding member (6) for a plurality of hold-down devices (7) and the hold-down device (7) for contacting a component of the motor vehicle -Coupling (3), characterized in that at least one rotary holder (8) which can be fixed in position is provided for fixing at least one hold-down (7) on the holding member (6). Tool (1) after Claim 1 , characterized in that the holding member (6) is designed as a clamping ring. Tool (1) according to one of the Claims 1 or 2 , characterized in that the rotary holder (8) is designed as an articulated turntable on the holding member (6) or as an articulated turntable on the holding member (6). Tool (1) according to one of the Claims 1 to 3 , characterized in that the rotary holder (8) is mounted centrally and a hold-down device (7) is connected eccentrically to the rotary holder (8).

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