EP4118411A1 - Lauftrommel für einen reifenprüfstand - Google Patents
Lauftrommel für einen reifenprüfstandInfo
- Publication number
- EP4118411A1 EP4118411A1 EP21711526.0A EP21711526A EP4118411A1 EP 4118411 A1 EP4118411 A1 EP 4118411A1 EP 21711526 A EP21711526 A EP 21711526A EP 4118411 A1 EP4118411 A1 EP 4118411A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- recesses
- webs
- hub
- casing body
- running
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
- G01M17/022—Tyres the tyre co-operating with rotatable rolls
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0072—Wheeled or endless-tracked vehicles the wheels of the vehicle co-operating with rotatable rolls
- G01M17/0074—Details, e.g. roller construction, vehicle restraining devices
Definitions
- the invention relates to a running drum for a tire test bench with a hub in which a drive shaft rotatably mounted about an axis of rotation is arranged and which is connected via a plurality of radial webs to an annular casing body, the outer radially circumferential casing surface of which forms a tread.
- the object of the invention is therefore to create a running drum for a tire test stand of the type mentioned at the outset, which has a high, uniform rigidity over its width.
- the running drum is a one-piece component, the radial webs over the width of the casing body at a uniform distance from one another and at right angles to the axis of rotation being the same circular disks, which over part of their extension between the hub and casing body are a plurality Evenly distributed on the circumference, axially continuous slot-like recesses that bil connecting webs between them.
- the running drum has an at least largely high and uniform rigidity all around at every position of the casing body, while at the same time also having high strength.
- force fluctuations Cuts due to fluctuations in stiffness are almost impossible or reduced to an absolute minimum.
- the drum is a cast component, the drum can have a low mass and can be manufactured without any problems despite internal parts.
- the running drum can also be produced as a one-piece component by means of a method other than casting. This would be possible, for example, through a printing process.
- the slot-like recesses can have an arc-like course of their extension between the hub and the casing body.
- a similar rigidity can be achieved in the jacket body between the radial webs as in the area directly above the webs. This is done by weakening the radial stiffness of the webs.
- slot-like recesses have a course that is inclined with respect to a radial to the axis of rotation.
- the slot-like recesses can have an increasing width from their end on the hub side to their end on the casing body side.
- the annular webs in the area between the radial ends of the slot-like recesses and the casing body can have axially continuous circular recesses.
- axially protruding stiffening ribs can be arranged, which can extend entirely or partially over the length of the connecting webs in particular up to the hub.
- Figure 1 is a side view of a running drum
- FIG. 2 shows a cross section of the running drum of FIG. 1.
- the drum shown in the figures for a tire test stand is designed as a single part cast. It has a hub 1 in which a drive shaft, not shown, rotatably mounted about an axis of rotation 2 can be arranged.
- radial webs designed as circular disks, extend from the hub 1 evenly distributed over the width of the running drum and extend up to an annular casing body 4 which radially surrounds the webs 3.
- the outer radially circumferential lateral surface of the shell body 3 forms a Laufflä surface 5 on which a tire to be tested on the tire test bench rolls along.
- the recesses 6 extend opposite the Radia len to the axis of rotation 2 arcuately inclined to the casing body 4 and end at a radial distance from the casing body 4, so that between the radially outer ends of the recesses 6 and the casing body 4, a radially circumferential annular web 7 is formed.
- the width of the slot-like recesses 6 increases from radially inside to radially outward, so that the width of the connecting webs 8 formed between the slot-like recesses 6 is at least approximately the same.
- stiffening ribs 9 are arranged, which extend radially inward to the hub 1.
- axially continuous circular recesses 10 are formed in the area between the radial ends of the langlocharti gene recesses 6 and the casing body 4.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tires In General (AREA)
- Testing Of Balance (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020203072.3A DE102020203072A1 (de) | 2020-03-11 | 2020-03-11 | Lauftrommel für einen Reifenprüfstand |
| PCT/EP2021/055894 WO2021180707A1 (de) | 2020-03-11 | 2021-03-09 | Lauftrommel für einen reifenprüfstand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4118411A1 true EP4118411A1 (de) | 2023-01-18 |
Family
ID=74871391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21711526.0A Withdrawn EP4118411A1 (de) | 2020-03-11 | 2021-03-09 | Lauftrommel für einen reifenprüfstand |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4118411A1 (de) |
| DE (1) | DE102020203072A1 (de) |
| WO (1) | WO2021180707A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022202301B3 (de) | 2022-03-08 | 2023-06-15 | Zf Friedrichshafen Ag | Prüfstand für Antriebsstrangelemente eines Kraftfahrzeugs |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29505461U1 (de) | 1995-04-06 | 1995-05-24 | DLB Gummiformteile GmbH, 33803 Steinhagen | Gummiförderwalze |
| US8701479B2 (en) | 2012-02-10 | 2014-04-22 | Commercial Time Sharing Inc. | System for characterizing tire uniformity machines and methods of using the characterizations |
| CN104634589B (zh) * | 2015-02-11 | 2017-09-29 | 中信戴卡股份有限公司 | 一种用于模拟路面的转鼓 |
| DE102015220674A1 (de) * | 2015-10-22 | 2017-04-27 | Zf Friedrichshafen Ag | Lauftrommel eines Reifen-, Rad- und/oder Fahrwerksprüfstandes |
| DE102017220038A1 (de) * | 2017-11-10 | 2019-05-16 | Zf Friedrichshafen Ag | Laufrolleneinheit, insbesondere für einen Rollenprüfstand, sowie Verfahren zur Herstellung derselben |
-
2020
- 2020-03-11 DE DE102020203072.3A patent/DE102020203072A1/de not_active Withdrawn
-
2021
- 2021-03-09 EP EP21711526.0A patent/EP4118411A1/de not_active Withdrawn
- 2021-03-09 WO PCT/EP2021/055894 patent/WO2021180707A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021180707A1 (de) | 2021-09-16 |
| DE102020203072A1 (de) | 2021-09-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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|
| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20220909 |
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| AK | Designated contracting states |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20241001 |