DE102013202702A1 - Traction-pressure rod for use as tie rod of motor car, has overload protection device arranged in bracket, where end portion of bracket is arranged in radial cross-cutting unit whose two sides are mounted on shearing elements by bracket - Google Patents

Traction-pressure rod for use as tie rod of motor car, has overload protection device arranged in bracket, where end portion of bracket is arranged in radial cross-cutting unit whose two sides are mounted on shearing elements by bracket Download PDF

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Publication number
DE102013202702A1
DE102013202702A1 DE201310202702 DE102013202702A DE102013202702A1 DE 102013202702 A1 DE102013202702 A1 DE 102013202702A1 DE 201310202702 DE201310202702 DE 201310202702 DE 102013202702 A DE102013202702 A DE 102013202702A DE 102013202702 A1 DE102013202702 A1 DE 102013202702A1
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DE
Germany
Prior art keywords
bracket
rod
overload protection
end portion
console
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Withdrawn
Application number
DE201310202702
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German (de)
Inventor
Oliver Gallitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to DE201310202702 priority Critical patent/DE102013202702A1/en
Publication of DE102013202702A1 publication Critical patent/DE102013202702A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/06—Turnbuckles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
    • F16B31/021—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load by means of a frangible part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/016—Constructional features of suspension elements, e.g. arms, dampers, springs allowing controlled deformation during collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B60G2206/11—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link
    • B60G2206/111—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link of adjustable length

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)

Abstract

The rod (1) has an overload protection device (2) arranged in a bracket (5). A first part (3) of the rod is axially/partially engaged with the bracket. A second part (4) of the rod is partially inserted in a radial piston (6). An end portion (8) of the bracket is arranged in a radial cross-cutting unit (9) whose two sides are axially mounted on shearing elements (11, 12) by the bracket. Threaded screw elements (13-15) are interlocked in parts of the bracket. The shearing elements are arranged between the threaded screw elements at an axial distance.

Description

Gebiet der ErfindungField of the invention

Die Erfindung betrifft einen Zug-Druck-Stab mit einer Überlastsicherung in Zug- und in Druckrichtung.The invention relates to a train-pressure rod with an overload protection in tension and in the pressure direction.

Hintergrund der ErfindungBackground of the invention

Zug-Druck-Stäbe stellen starre Verbindungen zwischen Bauteilen dar, die hohe axiale Kräfte übertragen. Treten Überlasten auf, können diese entweder brechen oder verbundene Bauteile beschädigen. Um dies zu vermeiden, sollen Überlastsicherungen eine dauerhafte Verformung des Zug-Druck-Stabes verhindern, beziehungsweise an einem auswechselbaren Abschnitt vorsehen und eine Beschädigung weiterer Bauteile verhindern. Hierbei soll nach Auslösen einer derartigen Überlastsicherung noch eine ausreichende mechanische Verbindung zwischen den durch den Zug-Druck-Stab verbundenen Bauteilen erhalten bleiben. Beispielsweise muss eine Spurstange eines Kraftfahrzeugs bei auftretenden Stößen nachgeben, um Radträger und Lenkgetriebe zu schützen. Gleichzeitig darf die Verbindung zwischen Lenkhebel und Kraftfahrzeug nicht unterbrochen werden, um zumindest eine eingeschränkte Manövrierbarkeit des Kraftfahrzeugs zu erhalten. Nach hinreichend bekanntem Stand der Technik werden zur Überlastsicherung von Zug-Druck-Stäben einerseits Wellrohre und andererseits Abschersicherungen eingesetzt. Ein Wellrohr verformt sich bei zu hoher axialer Belastung dauerhaft und wird bei Druckbelastung kürzer und bei Zugbelastung länger. Insbesondere bei einer einzuhaltenden Länge des Zug-Druck-Stabs beispielsweise einer Spurstange eines Kraftfahrzeugs kann ein Wellrohr lediglich als einmalige Schutzvorrichtung verwendet und muss danach ausgetauscht werden. Eine Abschersicherung ist eine Konsole, in der ein festes Abscherelement einen Kolben sichert. Bei hoher Druckbelastung wird dieses Abscherelement abgeschert und der Kolben verschiebt sich bis zu einem vorgegebenen Anschlag der Konsole. Der Zug-Druck-Stab kann damit um eine vorgegebene Strecke in Druckrichtung nachgeben, ohne dabei dauerhaft verformt zu werden. Eine Überlastsicherung in Zugrichtung ist nicht möglich.Pull-push bars provide rigid connections between components that transmit high axial forces. If overloads occur, they can either break or damage connected components. To avoid this, overload safety devices should prevent permanent deformation of the tension-compression rod, or provide for a replaceable portion and prevent damage to other components. This should still be maintained after triggering such an overload protection sufficient mechanical connection between the connected by the train-pressure rod components. For example, a tie rod of a motor vehicle must yield when shocks occur to protect the wheel and steering gear. At the same time, the connection between the steering lever and the motor vehicle must not be interrupted in order to obtain at least limited maneuverability of the motor vehicle. According to a sufficiently well-known state of the art, on the one hand corrugated pipes and on the other hand shear-offs are used for overload protection of train-pressure-rods. A corrugated tube deforms permanently at high axial load and is shorter under pressure load and longer under tensile load. In particular, in the case of a length of the train-pressure-rod to be maintained, for example, a tie rod of a motor vehicle, a corrugated tube is used only as a one-off protection device and must be replaced afterwards. A shear arrester is a console in which a solid shear element secures a piston. At high pressure load this shear element is sheared off and the piston shifts to a predetermined stop of the console. The tension-compression rod can thus yield by a predetermined distance in the compression direction, without being permanently deformed. An overload protection in the pulling direction is not possible.

Aufgabe der ErfindungObject of the invention

Aufgabe der Erfindung ist die vorteilhafte Weiterbildung einer Zug-Druck-Stange insbesondere vor dem Hintergrund einer kostengünstigen und leicht auswechselbaren, in beide Richtungen wirksamen Überlastsicherung. The object of the invention is the advantageous development of a train-pressure rod especially against the background of a cost-effective and easily replaceable, effective in both directions overload protection.

Allgemeine Beschreibung der ErfindungGeneral description of the invention

Die Aufgabe wird durch den Gegenstand des Anspruchs 1 gelöst. Die von diesem abhängigen Unteransprüche geben vorteilhafte Ausführungsformen wieder. Der vorgeschlagene Zug-Druck-Stab enthalt eine Überlastsicherung mit einem in eine Konsole eines ersten Teils des Zug-Druck-Druckstabs teilweise axial eingreifenden, in Druckrichtung mittels eines Abscherelements gesicherten, an einem zweiten Teil des Zug-Druck-Druckstabs angeordneten Kolben. In besonders vorteilhafter Weise weist der Kolben einen radialen, einen Endabschnitt der Konsole radial übergreifenden Ansatz auf, wobei der radiale Ansatz axial beidseitig jeweils mittels eines in der Konsole befestigten Abscherelements axial gesichert ist. Dabei kann die Konsole mehrteilig aus ineinander geschraubten Schraubteilen gebildet sein, zwischen denen die Abscherelemente aufgenommen sind. Hierbei können die Abscherelemente ringförmig ausgebildet sein. Der vorgeschlagene Zug-Druck-Stab eignet sich insbesondere als Spurstange eines Kraftfahrzeugs.The object is solved by the subject matter of claim 1. The dependent of this dependent claims give advantageous embodiments again. The proposed train-pressure rod includes an overload protection with a in a console of a first part of the train-pressure-pressure rod partially axially engaging, secured in the pressure direction by means of a shearing element, arranged on a second part of the train-pressure-pressure rod piston. In a particularly advantageous manner, the piston has a radial, an end portion of the console radially cross-approach, wherein the radial projection is axially axially secured on both sides in each case by means of a shearing element mounted in the console. In this case, the console can be formed in several parts from one another screwed screw parts, between which the shear elements are added. In this case, the shearing elements can be annular. The proposed train-pressure rod is particularly suitable as a tie rod of a motor vehicle.

Kurze Beschreibung der FigurenBrief description of the figures

Die Erfindung wird anhand des in den 1 bis 3 dargestellten Ausführungsbeispiels näher erläutert. Dabei zeigen:The invention is based on the in the 1 to 3 illustrated embodiment illustrated. Showing:

1 einen Längsschnitt durch einen Teil eines Zug-Druck-Stabs mit Überlastsicherung, 1 a longitudinal section through part of a train-pressure-rod with overload protection,

2 eine 3D-Ansicht des Zug-Druck-Stabs der 1 und 2 a 3D view of the train-pressure-rod of the 1 and

3 eine geschnittene 3D-Ansicht des Zug-Druck-Stabs der 1 und 2. 3 a sectional 3D view of the train-push-rod of the 1 and 2 ,

Ausführliche Beschreibung der FigurenDetailed description of the figures

Die 1 bis 3 zeigen den Zug-Druck-Stab 1 mit der Überlastsicherung 2. An dem ersten Teil 3 des Zug-Druck-Stabs 1 ist die Konsole 5 angeordnet, in die der Kolben 6 des zweiten Teils 4 des Zug-Druck-Stabs 1 derart teilweise eingreift, dass einerseits ein axialer Abstand zum Anschlag 7 der Konsole 5 und andererseits Abstand zu deren nach radial innen eingezogenen Endabschnitt 8 eingestellt ist. Der Kolben 6 weist hierzu den radial erweiterten Ansatz 9 auf, der an der Zylinderwandung 10 der Konsole anliegt und den Endabschnitt 8 radial übergreift. Der radiale Ansatz 9 und damit der Kolben 6 ist axial beidseitig fixiert von den Abscherelementen 11, 12, die in der Konsole 5 axial fest aufgenommen sind. Die Abscherelemente 11, 12 übertragen die notwendigen Zug- und Schubkräfte und scheren bei höherer Axialbelastung ab, so dass der Kolben 6 unter Druckbelastung bis zum Anschlag 7 und bei Zugbelastung bis zum Endabschnitt 8 ausweichen kann. Die Konsole 5 ist zum erleichterten Austausch von defekten Abscherelementen 11, 12 aus den Schraubteilen 13, 14, 15 hergestellt, zwischen denen die ringförmigen Abscherelemente 11, 12 axial beabstandet eingebaut beziehungsweise ausgetauscht werden. The 1 to 3 show the train-pressure-rod 1 with the overload protection 2 , At the first part 3 of the train-pressure-staff 1 is the console 5 arranged in which the piston 6 of the second part 4 of the train-pressure-staff 1 so partially engages that on the one hand an axial distance to the stop 7 the console 5 and on the other hand distance to their radially inwardly retracted end portion 8th is set. The piston 6 has this the radially extended approach 9 on, on the cylinder wall 10 the console rests and the end portion 8th radially overlaps. The radial approach 9 and thus the piston 6 is axially fixed on both sides of the shearing elements 11 . 12 in the console 5 are axially fixed. The shear elements 11 . 12 transmit the necessary tensile and shear forces and shear off at higher axial load, so that the piston 6 under pressure until it stops 7 and at tensile load to the end portion 8th can dodge. The console 5 is to facilitate replacement of defective shear elements 11 . 12 from the screw parts 13 . 14 . 15 between which are the annular shearing elements 11 . 12 axially spaced installed or replaced.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Zug-Druck-Stab Train-pressure rod
22
Überlastsicherung Overload protection
33
erster Teil first part
44
zweiter Teil second part
55
Konsole console
66
Kolben piston
77
Anschlag attack
88th
Endabschnitt end
99
radialer Ansatz radial approach
1010
Zylinderwandung cylinder
1111
Abscherelement shearing
1212
Abscherelement shearing
1313
Schraubteil screw
1414
Schraubteil screw
1515
Schraubteil screw

Claims (4)

Zug-Druck-Stab (1) mit einer Überlastsicherung (2) mit einem in eine Konsole (5) eines ersten Teils (3) des Zug-Druck-Druckstabs (1) teilweise axial eingreifenden, in Druckrichtung mittels eines Abscherelements (11) gesicherten, an einem zweiten Teil (4) des Zug-Druck-Druckstabs (1) angeordneten Kolben (6), dadurch gekennzeichnet, dass der Kolben (6) einen radialen, einen Endabschnitt (8) der Konsole (5) radial übergreifenden Ansatz (9) aufweist und der radiale Ansatz (9) axial beidseitig jeweils mittels eines in der Konsole (5) befestigten Abscherelements (11, 12) axial gesichert ist.Pull-push rod ( 1 ) with an overload protection ( 2 ) with one in a console ( 5 ) of a first part ( 3 ) of the pull-push-push rod ( 1 ) partially axially engaging, in the printing direction by means of a Abscherelements ( 11 ), in a second part ( 4 ) of the pull-push-push rod ( 1 ) arranged piston ( 6 ), characterized in that the piston ( 6 ) a radial, an end portion ( 8th ) of the console ( 5 ) radially overlapping approach ( 9 ) and the radial approach ( 9 ) axially on both sides in each case by means of one in the console ( 5 ) attached shearing element ( 11 . 12 ) is axially secured. Zug-Druck-Stab (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Konsole (5) mehrteilig aus ineinander geschraubten Schraubteilen (13, 14, 15) gebildet ist, zwischen denen die Abscherelemente (11, 12) axial beabstandet aufgenommen sind.Pull-push rod ( 1 ) according to claim 1, characterized in that the console ( 5 ) in several parts from screwed together screw parts ( 13 . 14 . 15 ) between which the shearing elements ( 11 . 12 ) are received axially spaced. Zug-Druck-Stab (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Abscherelemente (11, 12) ringförmig ausgebildet sind.Pull-push rod ( 1 ) according to claim 1 or 2, characterized in that the shearing elements ( 11 . 12 ) are annular. Zug-Druck-Stab (1) nach einem der Ansprüche 1 bis 3 zur Verwendung als Spurstange eines Kraftfahrzeugs.Pull-push rod ( 1 ) according to one of claims 1 to 3 for use as a tie rod of a motor vehicle.
DE201310202702 2013-02-20 2013-02-20 Traction-pressure rod for use as tie rod of motor car, has overload protection device arranged in bracket, where end portion of bracket is arranged in radial cross-cutting unit whose two sides are mounted on shearing elements by bracket Withdrawn DE102013202702A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE201310202702 DE102013202702A1 (en) 2013-02-20 2013-02-20 Traction-pressure rod for use as tie rod of motor car, has overload protection device arranged in bracket, where end portion of bracket is arranged in radial cross-cutting unit whose two sides are mounted on shearing elements by bracket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310202702 DE102013202702A1 (en) 2013-02-20 2013-02-20 Traction-pressure rod for use as tie rod of motor car, has overload protection device arranged in bracket, where end portion of bracket is arranged in radial cross-cutting unit whose two sides are mounted on shearing elements by bracket

Publications (1)

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DE102013202702A1 true DE102013202702A1 (en) 2014-08-21

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DE201310202702 Withdrawn DE102013202702A1 (en) 2013-02-20 2013-02-20 Traction-pressure rod for use as tie rod of motor car, has overload protection device arranged in bracket, where end portion of bracket is arranged in radial cross-cutting unit whose two sides are mounted on shearing elements by bracket

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195094A (en) * 2016-08-29 2016-12-07 中国航空工业集团公司西安飞机设计研究所 A kind of shock loading slows down assembly and shock loading alleviative method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195094A (en) * 2016-08-29 2016-12-07 中国航空工业集团公司西安飞机设计研究所 A kind of shock loading slows down assembly and shock loading alleviative method
CN106195094B (en) * 2016-08-29 2018-06-05 中国航空工业集团公司西安飞机设计研究所 A kind of shock loading slows down component and shock loading alleviative method

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Legal Events

Date Code Title Description
R081 Change of applicant/patentee

Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE

Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE

Effective date: 20140217

Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE

Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE

Effective date: 20150408

R005 Application deemed withdrawn due to failure to request examination