DE3834883A1 - Device for the determination of shaft forces - Google Patents
Device for the determination of shaft forcesInfo
- Publication number
- DE3834883A1 DE3834883A1 DE3834883A DE3834883A DE3834883A1 DE 3834883 A1 DE3834883 A1 DE 3834883A1 DE 3834883 A DE3834883 A DE 3834883A DE 3834883 A DE3834883 A DE 3834883A DE 3834883 A1 DE3834883 A1 DE 3834883A1
- Authority
- DE
- Germany
- Prior art keywords
- crossbar
- coupling
- strain gauges
- trailer
- vehicle
- 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- Withdrawn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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/13—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the tractive or propulsive power of vehicles
- G01L5/136—Force sensors associated with a vehicle traction coupling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/58—Auxiliary devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung zum Bestimmen der zwischen Zugwagen und Anhänger auftretenden Deichselkräfte mittels eines Sensors.The invention relates to a device for determining the drawbar forces occurring between the towing vehicle and the trailer by means of of a sensor.
Eine derartige Vorrichtung ist bekannt (DE-A 34 28 192). Bei dieser bekannten Vorrichtung ist der Sensor an der Deichsel des Anhängers angeordnet. Das hat den Nachteil, daß der Sensor dem rauhen Kuppel betrieb ausgesetzt ist und dann sehr leicht beschädigt werden kann.Such a device is known (DE-A 34 28 192). At this known device is the sensor on the drawbar of the trailer arranged. This has the disadvantage that the sensor is the rough dome operation is suspended and can then be easily damaged.
Die eingangs genannte Vorrichtung mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß der Sensor vor Schlägen geschützt ist und daß er mit seinen elektrischen Anschlüs sen eindeutig und unveränderlich dem Zugwagen zugeordnet ist.The device mentioned at the outset with the characteristic features the main claim has the advantage that the sensor before It is protected against blows and that it has electrical connections is clearly and unchangeably assigned to the towing vehicle.
Desweiteren ist es von Vorteil, daß der Sensoreinbau unabhängig vom Kupplungshersteller ist.Furthermore, it is advantageous that the sensor installation is independent of Clutch manufacturer.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung darge stellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigenAn embodiment of the invention is shown in the drawing represents and explained in more detail in the following description. It demonstrate
Fig. 1 eine Draufsicht auf die Quertraverse und Fig. 2 eine Seitenansicht der Quertraverse (Fahrzeugkupplung im Schnitt) . Fig. 1 is a plan view of the crossbar and Fig. 2 is a side view of the crossbar (vehicle coupling in section).
Am Ende eines nicht näher dargestellten Zugwagens 1, der zum Ziehen eines ebenfalls nicht näher dargestellten Anhängers 2 bestimmt ist, befindet sich an einem Fahrzeugrahmen 3 eine Quertraverse 4. Diese Quertraverse 4 ist im Querschnitt U-förmig ausgebildet und ist an ihren Schenkelenden 5 und 6 mit dem Fahrzeugrahmen 3 verschraubt. In ihrem Basisteil 7 trägt sie ein Loch 8 zur Aufnahme eines Kupplungs trägers 9, der einen Flansch 10 hat zur Aufnahme von vier Schrauben, mit denen der Kupplungsträger 9 über seinen Flansch 10 an der Quer traverse 4 befestigt ist (vgl. Fig. 2). Auf seiner dem Zugwagen 1 abgekehrten Seite ist der Kupplungsträger 9 mit einer Kupplungsöse 11 versehen, die zur Aufnahme eines Kupplungsbolzens 12 bestimmt ist, mit dem ein Deichselauge 13 einer Anhänger-Deichsel 14 und da mit der Anhänger 2 an den Zugwagen 1 anzuhängen bzw. anzukuppeln ist. Dabei bilden die Kupplungsöse 11, der Kupplungsbolzen 12 und das Deichselauge 13 die Fahrzeugkupplung 11, 12, 13.At the end of a towing vehicle 1, not shown, which is intended to tow a trailer 2 also not shown in detail, is located on a vehicle frame 3 is a cross-beam. 4 This crossbar 4 is U-shaped in cross section and is screwed to the vehicle frame 3 at its leg ends 5 and 6 . In their base portion 7 carries a hole 8 for receiving a coupling bracket 9 that has a flange 10 fixed for receiving four screws with which the clutch carrier 9 traverse its flange 10 on the cross-4 (see. Fig. 2) . On its side facing away from the towing vehicle 1 , the coupling carrier 9 is provided with a coupling eyelet 11 which is intended for receiving a coupling bolt 12 with which a tiller eye 13 of a trailer tiller 14 and there with the trailer 2 can be attached or coupled to the towing vehicle 1 is. The coupling eye 11 , the coupling pin 12 and the tiller eye 13 form the vehicle coupling 11 , 12 , 13 .
Die Quertraverse 4 hat zwei Bohrungen 15 und 16, in denen ein Paar Sensoren 17 und 18 angeordnet sind, die als Dehnungsmeßglieder aus gebildet sind. Damit dient die Quertraverse 4 in ihrer Gesamtheit als Meßstelle für die zwischen Zugwagen und Anhänger auftretenden Deichselkräfte. Vorzugsweise sind die beiden Dehnungsmeßglieder 17 und 18 symmetrisch zu der Befestigungsstelle, d.h. dem Loch 8 für den Kupplungsträger 9 angeordnet. The crossbar 4 has two bores 15 and 16 , in which a pair of sensors 17 and 18 are arranged, which are formed as strain gauges. The cross-member 4 thus serves in its entirety as a measuring point for the drawbar forces occurring between the towing vehicle and the trailer. Preferably, the two strain gauges 17 and 18 are arranged symmetrically to the fastening point, ie the hole 8 for the coupling carrier 9 .
Beim Ausführungsbeispiel ist das Paar von Dehnungsmeßgliedern 17 und 18 in einer Ebene der Quertraverse 4 angeordnet, in der auch die Be festigungsstelle (Loch 8) für den Kupplungsträger 9 liegt (vgl. Fig. 2). Es ist aber auch denkbar, die Dehnungsmeßglieder 17 und 18 mindestens zum Teil an den Schenkeln der Quertraverse 4 anzuordnen. Auch können, bei Bedarf, mehr als ein Paar von Dehnungsmeßgliedern Anwendung finden.In the embodiment, the pair of strain gauges 17 and 18 is arranged in a plane of the crossbar 4 , in which also the fastening point (hole 8 ) for the coupling carrier 9 is located (see. Fig. 2). However, it is also conceivable to arrange the strain gauges 17 and 18 at least in part on the legs of the crossbar 4 . Also, if necessary, more than one pair of strain gauges can be used.
Außen in der Quertraverse 4 sind zwei Durchgangsbohrungen 20 und 21 vorgesehen, die zur Aufnahme von Steckdosen für die elektrische Überwachung des Wagenzuges bestimmt sind.Outside in the crossbar 4 , two through holes 20 and 21 are provided, which are intended for receiving sockets for the electrical monitoring of the wagon train.
Wenn beim angekuppeltem Anhänger 2 an der Quertraverse 4 Zug- oder Druckkräfte auftreten, versuchen diese, die Quertraverse 4 zu ver biegen. Dabei entstehen in der Quertraverse 4 Spannungen, die durch die Dehnungsmeßglieder 17 und 18 erfaßt, in einer elektronischen Einrichtung ausgewertet und zu Signalen für die auf dem Zugwagen und dem Anhänger angeordneten Bremssteuerventile verarbeitet werden. Treten seitliche Kräfte auf, so gewährleistet die Anordnung mehrerer Dehnungsmeßglieder einen Ausgleich, und es werden Fehler, die bei der Verrechnung solcher Falschsignale eventuell auftreten können, verringert.If tensile or compressive forces occur on the crossbar 4 when the trailer 2 is coupled, they try to bend the crossbar 4 . This creates 4 voltages in the cross-beam, which are detected by the strain gauges 17 and 18 , evaluated in an electronic device and processed into signals for the brake control valves arranged on the towing vehicle and the trailer. If lateral forces occur, the arrangement of several strain gauges ensures compensation, and errors that can possibly occur when such false signals are calculated are reduced.
Claims (4)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3834883A DE3834883A1 (en) | 1988-10-13 | 1988-10-13 | Device for the determination of shaft forces |
IT02198689A IT1236549B (en) | 1988-10-13 | 1989-10-11 | DEVICE FOR DEFINING FORCES ON THE RUDDER BETWEEN TRACTOR AND TRAILER. |
FR898913455A FR2637981B3 (en) | 1988-10-13 | 1989-10-13 | DEVICE FOR DETERMINING THE FORCES TRANSMITTED BY A HANDLE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3834883A DE3834883A1 (en) | 1988-10-13 | 1988-10-13 | Device for the determination of shaft forces |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3834883A1 true DE3834883A1 (en) | 1990-04-19 |
Family
ID=6365040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3834883A Withdrawn DE3834883A1 (en) | 1988-10-13 | 1988-10-13 | Device for the determination of shaft forces |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3834883A1 (en) |
FR (1) | FR2637981B3 (en) |
IT (1) | IT1236549B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4014312A1 (en) * | 1990-05-04 | 1991-11-07 | Wabco Westinghouse Fahrzeug | Trailer coupling connector to vehicle part - contains pressure sensor measuring pressure of incompressible fluid between force transfer surfaces |
DE4212161A1 (en) * | 1992-04-10 | 1993-10-14 | Klaus Maier | Vehicle semi-trailer, e.g. for transporting boat or camping equipment - has brakes controlled by thrust on trailer king-pin measured by resistance strain gauges |
DE19708144A1 (en) * | 1997-02-28 | 1998-09-03 | Itt Mfg Enterprises Inc | Procedure for avoiding pendulum movements of the drawbar of a motor vehicle trailer |
DE29901871U1 (en) | 1999-02-04 | 1999-04-29 | Küster & Co GmbH, 35630 Ehringshausen | Parking brake system for motor vehicles with detection of a trailer load |
DE20316698U1 (en) * | 2003-10-30 | 2005-03-17 | Knott Gmbh | Trailer towing bar with sway control, has device for monitoring damping produced by stabilizing device by measuring damping force or moment |
DE102010043964A1 (en) * | 2010-11-16 | 2012-05-16 | Scambia Industrial Developments Aktiengesellschaft | support device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29606636U1 (en) * | 1996-04-12 | 1996-07-25 | BPW Bergische Achsen KG, 51674 Wiehl | Device for receiving a trailer coupling |
-
1988
- 1988-10-13 DE DE3834883A patent/DE3834883A1/en not_active Withdrawn
-
1989
- 1989-10-11 IT IT02198689A patent/IT1236549B/en active IP Right Grant
- 1989-10-13 FR FR898913455A patent/FR2637981B3/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4014312A1 (en) * | 1990-05-04 | 1991-11-07 | Wabco Westinghouse Fahrzeug | Trailer coupling connector to vehicle part - contains pressure sensor measuring pressure of incompressible fluid between force transfer surfaces |
DE4212161A1 (en) * | 1992-04-10 | 1993-10-14 | Klaus Maier | Vehicle semi-trailer, e.g. for transporting boat or camping equipment - has brakes controlled by thrust on trailer king-pin measured by resistance strain gauges |
DE4212161C2 (en) * | 1992-04-10 | 1998-02-19 | Klaus Maier | Semi-trailer with an overrun braking system |
DE19708144A1 (en) * | 1997-02-28 | 1998-09-03 | Itt Mfg Enterprises Inc | Procedure for avoiding pendulum movements of the drawbar of a motor vehicle trailer |
DE29901871U1 (en) | 1999-02-04 | 1999-04-29 | Küster & Co GmbH, 35630 Ehringshausen | Parking brake system for motor vehicles with detection of a trailer load |
DE20316698U1 (en) * | 2003-10-30 | 2005-03-17 | Knott Gmbh | Trailer towing bar with sway control, has device for monitoring damping produced by stabilizing device by measuring damping force or moment |
DE102010043964A1 (en) * | 2010-11-16 | 2012-05-16 | Scambia Industrial Developments Aktiengesellschaft | support device |
US9150061B2 (en) | 2010-11-16 | 2015-10-06 | Scambia Holdings Cyprus Limited | Carrier device |
Also Published As
Publication number | Publication date |
---|---|
IT1236549B (en) | 1993-03-11 |
FR2637981B3 (en) | 1990-10-05 |
IT8921986A0 (en) | 1989-10-11 |
FR2637981A3 (en) | 1990-04-20 |
IT8921986A1 (en) | 1991-04-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8120 | Willingness to grant licences paragraph 23 | ||
8139 | Disposal/non-payment of the annual fee |