WO2001016572A1 - Procede et dispositif de compensation d'un desiquilibre au niveau d'une roue de vehicule - Google Patents

Procede et dispositif de compensation d'un desiquilibre au niveau d'une roue de vehicule Download PDF

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Publication number
WO2001016572A1
WO2001016572A1 PCT/EP2000/008462 EP0008462W WO0116572A1 WO 2001016572 A1 WO2001016572 A1 WO 2001016572A1 EP 0008462 W EP0008462 W EP 0008462W WO 0116572 A1 WO0116572 A1 WO 0116572A1
Authority
WO
WIPO (PCT)
Prior art keywords
compensation
rim
scanning
scanning head
wheel
Prior art date
Application number
PCT/EP2000/008462
Other languages
German (de)
English (en)
Inventor
Walter Hipp
Original Assignee
Haweka Werkstatt-Technik Gmbh
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 Haweka Werkstatt-Technik Gmbh filed Critical Haweka Werkstatt-Technik Gmbh
Priority to EP00964066A priority Critical patent/EP1208365A1/fr
Priority to AU75120/00A priority patent/AU7512000A/en
Publication of WO2001016572A1 publication Critical patent/WO2001016572A1/fr

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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
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/30—Compensating imbalance
    • G01M1/32—Compensating imbalance by adding material to the body to be tested, e.g. by correcting-weights
    • G01M1/326—Compensating imbalance by adding material to the body to be tested, e.g. by correcting-weights the body being a vehicle wheel
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/02—Details of balancing machines or devices

Definitions

  • the invention relates to a device for compensating an imbalance according to the preamble of claim 1.
  • a device of the type mentioned above is already known from the "geodyna 3000/3500" advertising brochure from Hofmann choir-Technik GmbH.
  • the wheel is first turned in after the measuring run in such a way that the compensation point, in which the balance weight is to be attached, is in the so-called “twelve o'clock position".
  • a display shows that the compensation point has been reached in the twelve o'clock position when the wheel is turned in.
  • the adhesive weight is placed on the weight holder of the scanning head and the protective film of the adhesive weight is removed.
  • the adhesive weight then lies with the adhesive layer facing upwards in the weight holder.
  • the scanning arm is moved into the rim bowl, the reaching of the compensation level being indicated on a display of the machine. As soon as the compensation level is reached, the scanning arm is raised and the adhesive weight is glued into the rim bowl.
  • an unbalance compensation device is known from the operating instructions "wheel balancing machine geodyna 88/88 m” from Hofmann choir-Technik GmbH, in which a measuring probe is provided, which is, however, only intended for probing the rim flanges.
  • this known device it is also possible to apply adhesive weights within the rim attach bowl.
  • the compensation levels are not defined before a measurement run.
  • the individual compensation levels are permanently entered in the program on which the known device is based.
  • the so-called hidden attachment of the adhesive weights within the rim well takes place without the aid of the probe, an attempt being made to place the adhesive weights in the correct place by hand.
  • a balancing machine for motor vehicle wheels in which the scanning arm is designed in such a way that the scanning head can be moved into the lower region of the rim disk.
  • the rim values scanned by the scanning head are shown on a display of the balancing machine.
  • the object of the present invention is now to provide a device of the type mentioned at the outset in which the compensation plane can be found again and the compensation weight can be attached in the compensation plane in a simple manner.
  • the previously derived and specified object is achieved in a device of the type mentioned according to the invention by the characterizing features of claim 1.
  • the starting point of the invention is to make the location of the counterweight as visible as possible for the installer.
  • the compensating position is not in the twelve o'clock position as in the prior art, but in the lower region of the rim bowl, preferably between the five o'clock and seven o'clock positions, which is realized constructively by the fact that the scanning head can be moved into the lower region of the rim bowl.
  • the compensation plane and / or the compensation angle is no longer displayed on a display of the actual balancing machine, but on the scanning head itself and thus in the rim disk at the compensation location.
  • the mechanic can look at the scanning head and thus the display device during the movement of the scanning head in the rim bowl and find the compensation point in a simple manner, both with regard to the compensation angle and with regard to the compensation plane.
  • the display device has display means for displaying the direction and for finding the compensation plane and / or the compensation angle in one and in the other direction.
  • These display means can preferably be tapered or arrow-shaped and point on the one hand in one direction and on the other hand in the other direction. The display means can then be used to indicate that the scanning head is approaching or moving away from the calculated compensation plane or the calculated compensation angle.
  • the scanning head in the present invention is moved within the rim bowl in order to find the compensation plane and / or the compensation angle, at least one impeller and / or at least one roller for rolling on the rim bowl is provided to reduce the friction on the scanning head.
  • the scanning head in order to ensure constant contact of the scanning head with the rim bowl, provision is also made for the scanning head to be spring-loaded in the direction of the inside of the wheel.
  • Another disadvantage of the balancing machine known from the operating instructions “geodyna 3000/3500” is that the probe is arranged above the main shaft, so that the compensation plane is not or hardly visible to the operator when it is defined before the measuring run.
  • the operator guides the scanning arm with the scanning head to a location within the rim bowl to define the leveling plane. Since the rim bowl in the twelve o'clock position is difficult or impossible for the operator to see, it can easily happen that the leveling plane is defined in a so-called forbidden zone, in which a balancing weight should not or should not be attached can.
  • the scanning arm can be be coupled to a timing element, so that it is necessary to hold the scanning arm at the desired position for a time in order to thereby define the compensation plane.
  • the known way of defining the compensation plane namely at a location that is difficult to see or difficult to see, is unsatisfactory.
  • this object is essentially achieved in a device of the type mentioned at the outset by the characterizing features of claim 5.
  • the compensation plane and other relevant rim data are not entered via a timer or via a keyboard on the machine, but manually on the scanning head using the input means provided there. The entry is therefore made at a location in the rim bowl that is readily visible to the operator. The operator can therefore place the scanning head in a visible location and can easily recognize whether this is a location where the counterweight can be attached or a forbidden zone. Accordingly, the compensation level or a compensation range having the compensation level, which will be discussed in more detail below, can then be entered.
  • the problems in the prior art when defining the compensation plane cannot occur with the invention.
  • the evaluation device not only takes into account the mounting location that is offset from the scanning head, but also the shape or size of the balance weight.
  • Balance weights are usually elongated in shape. Starting from a certain specified reference edge, the center of gravity of this weight is therefore closer to a smaller weight Reference edge than with a larger balance weight. In order to exactly determine the compensation location, the reference edge and size or type of the compensation weight are therefore taken into account by the evaluation device.
  • the reference edge on the scanning head can be located at any point on the scanning head. However, it is preferred that the reference edge runs essentially parallel to the scanning arm, so that the counterweight can be attached to the side of the scanning head.
  • At least one illuminant that shines beyond the reference edge is provided on the scanning head.
  • this lighting integrated into the scanning head not only is the gluing point marked so that it is easily recognizable for the user, the operator can also see via the illuminated area of the wheel arches whether this area needs to be cleaned before the adhesive weight is attached.
  • the at least substantially complete illumination of the interior of the rim by means of at least one illuminant in the case of an imbalance compensation device of any kind can have independent inventive significance.
  • the at least substantially complete illumination of the rim bowl ensures an improved application of the adhesive weight within the rim bowl.
  • the present invention relates to a method according to the preamble of claim 10.
  • the scanning head for scanning is moved into the lower region of the rim bowl, that the balance weight is applied to an outer contact edge as the reference edge of the scanning head in the rim bowl and that the compensation angle taking into account the reference edge and the type of Balance weight is calculated.
  • the present invention relates to a method of the aforementioned type, in which it is provided according to the invention that the scanning head can be moved into the lower region of the rim bowl and that the compensation plane and / or a compensation region having the compensation plane after placing the scanning head in the rim bowl can be defined by pressing at least one key on the scanning head.
  • a compensation level to be found can be entered, a compensation range can also be specified within the rim bowl, in which the compensation level calculated by the evaluation device is to be located.
  • This compensation area can be defined by the operator by pressing the appropriate button. Defining a compensation area offers the advantage that after the measurement run has been carried out, the evaluation device can determine a compensation level which correlates to a predetermined "even" weight level of the compensation weight (for example in gram or 5-gram increments). With a fixed compensation level, this cannot be guaranteed.
  • the evaluation device instead of entering a compensation area, it is also possible for the evaluation device to take into account the possible predetermined weight levels and to calculate a compensation level which is adjacent to the predetermined compensation level defined by the operator, with a weight then also being associated with the calculated compensation level predefined weight level correlated.
  • the scanning head is guided parallel to the main shaft along the rim bowl after probing the rim flange in order to determine the rim profile of the rim bowl.
  • This not only determines flat areas of the rim bowl, but also positive and negative gradients, which, like levels with a very short extension, are regarded as prohibited zones, to which a counterweight cannot be attached or should. It should be pointed out that this idea can also have independent inventive significance regardless of the type of balancing method and the balancing device.
  • clamped wheel is rotated with the scanning head placed in the rim bowl in order to determine the eccentricity of the wheel in the clamped state. This can be taken into account when determining the unbalance and calculating the counterweight.
  • FIG. 1 is a view of an inventive device for compensating an unbalance
  • FIG. 2 shows a view of a scanning head of a device according to the invention inserted into a rim bowl
  • FIG. 3 shows a side view of the scanning head from FIG. 2 without a counterweight
  • Fig. 4 is a view corresponding to FIG. 3 of the scanning head
  • FIG. 5 shows a cross-sectional view of a wheel, a scanning head being displaced within the rim bowl of the wheel in order to determine the inner contour of the rim bowl.
  • the device 1 shows a device 1 for compensating an imbalance by means of at least one balancing weight 2 on a wheel 4 having a rim 3.
  • the wheel 4 in the present case is a motor vehicle wheel.
  • the device 1 is provided with a main shaft 5 on which the wheel 4 is clamped for balancing. This state is shown in Fig. 1.
  • the device 1 is provided with a scanning device for detecting the distance of at least one compensation plane E in the rim bowl 6 of the rim 3 and for detecting at least one radius R of the rim 3.
  • the device 1 has a force measuring device coupled to the main shaft 5 and a rotation angle measuring device also coupled to the main shaft 5. Both of these devices are not shown. The same applies to an evaluation device connected to the force measuring device and the rotation angle measuring device, which is ultimately a computer, the evaluation device being provided for determining the at least one balancing weight 2 to be arranged in or in the area of the balancing plane E according to the amount and balancing angle.
  • the scanning device in turn has an extendable scanning arm 7 with a scanning head 8 at the end.
  • the scanning arm 7 is designed such that the scanning head 8 can be moved into the lower region of the rim disk 6.
  • the scanning arm 7 is arranged below the main shaft 5 and can be pulled out parallel to the main shaft. This is represented by the arrow X in FIG. 2.
  • the scanning head 8 can be pivoted about the scanning arm 7, as shown by the arrow Y in FIG. 2. Both the extension length and the swivel angle of the scanning arm 7 or the scanning head 8 are determined using potentiometers.
  • a display device 9 coupled to the evaluation device for displaying and finding the compensation plane E and / or the compensation angle is provided on the scanning head 8.
  • the display device 9 has display means 10 for indicating the direction in order to find the compensation plane E and the compensation angle in one and in the other direction.
  • two are triangular light-emitting diodes 10a, 10b pointing opposite directions are provided, which indicate that the compensation angle is approaching or moving away. If the correct position of the compensation angle is reached, a light-emitting diode 10c lights up, while the light-emitting diodes 10a, 10b then no longer light up.
  • triangular light-emitting diodes 1 Od and 1 Oe pointing in opposite directions are provided, which indicate that the compensation plane E is approaching or moving away. If the compensation level E is sufficient, only the 1 Of LED lights up. If the scanning head 8 is correctly arranged in the rim bowl 6 both with regard to the compensation plane and with regard to the compensation, the two light-emitting diodes 10c and 10f light up.
  • a roller 11 is provided on the scanning head 8 for rolling off the scanning head 8 on the rim bowl 6, which facilitates the movement of the scanning head 8 in the direction of arrow X and in the circumferential direction of the rim bowl 6.
  • the scanning head 8 is spring-loaded in the direction of the rim bowl 6, but this is not shown in detail. However, the spring load ensures that the roller 11 of the scanning head 8 rests continuously on the rim disk 6.
  • an input device 13 connected to the evaluation device and having at least one key 12, is provided on the scanning head 8 for inputting the compensation plane E.
  • a compensation area B or a compensation radius R can also be entered via the input device 13. This will be discussed in more detail below.
  • an outer contact edge is provided as a reference edge 14 on the scanning head 8, which serves to apply the counterweight 2.
  • the evaluation device is designed such that the compensation angle is calculated taking into account the reference edge 14 and the type, ie the shape and size of the balance weight 2.
  • the reference edge 14 is arranged essentially parallel to the scanning arm 7, so that the counterweight 2 is arranged laterally next to the scanning head 8 in the rim bowl 6 for weight compensation.
  • on the scanning head 8 there is a luminous means 15 which shines beyond the reference edge 14 and, as can be seen from FIG. 3, for illuminating the surface of the rim rim adjacent to the reference edge 14 6 is provided, thus ultimately serves to illuminate exactly the area to which the balance weight 2 is attached, ie to be glued on.
  • the device according to the invention can now be operated in various ways.
  • the scanning head 8 is placed in the rim bowl 6 and the key 12 is actuated. With this actuation, the compensation radius R can also be determined at the same time.
  • the button 12 is pressed twice on an essentially flat part of the rim bowl 6, the evaluation device predetermines the compensation area B within which the compensation plane E is to be located later.
  • the rim flange 16 is touched. This can be done via a timer or also via the button 12 or another button, not shown.
  • the entire profile of the rim bowl 6 can be determined with the aid of the scanning head 8.
  • the scanning head 8 is moved into the rim bowl 6.
  • the individual radii R 1 and R 2 are determined, but also flat and inclined sections of the rim disk 6.
  • This determination of the inner contour of the rim disk 6 is predetermined for the evaluation device, so that after the measurement run in the calculation of the balance weight 2 and the balance point it is ensured that the balance weight 2 is not at a so-called forbidden point, such as the slope in the area b-c is arranged. Furthermore, before the measuring run, the eccentricity of the wheel 4 clamped on the main shaft 5 is determined by placing the scanning head 8 in the rim bowl 6 and then rotating the wheel 4. Any eccentricity caused by the clamping of the wheel 4 on the horizontally arranged main shaft 5 is taken into account accordingly by the evaluation device when determining the unbalance.
  • the balancing weight 2 and the balancing location are determined by the evaluation device taking into account the balancing level E or the balancing area B. Possible weight levels, for example in 5-gram increments, are predefined for the evaluation device, the evaluation device then determining a compensation level E which correlates to an integral multiple of a 5-gram weight.
  • the compensation plane E can either lie within the compensation region B or is calculated by the evaluation device adjacent to a predefined compensation plane. It goes without saying that prohibited zones are taken into account accordingly.
  • the scanning head 8 is inserted into the rim bowl 6. Then the wheel 4 is first turned in until the compensation point is in the correct position next to the scanning head 8.
  • the light-emitting diodes 10a, 10b on the scanning head serve this purpose, which indicate to the operator in which direction the wheel 4 is to be turned.
  • the LED 10c lights up.
  • the scanning arm 7 is moved in the direction of arrow X. The direction of movement is indicated to the operator either by the LED 10d or by the LED 10e.
  • level E is reached, the LED 1 Of lights up.
  • the illuminant 15 illuminates the gluing point to which the balance weight 2 is to be glued. If necessary, the glue point can then be cleaned. Then the balance weight 2 is applied. It is important that the balance weight is applied directly to the reference edge 14.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Balance (AREA)

Abstract

La présente invention concerne un dispositif (1) permettant de compenser un déséquilibre au moyen d'au moins un poids d'équilibrage (2) se trouvant sur une roue (4) présentant une jante (3), en particulier une roue de véhicule, comportant un axe principal (5) sur lequel la roue (4) peut être montée, un dispositif de détection servant à déterminer la distance d'au moins un plan d'équilibrage (E) dans la cavité (6) de la jante (3) et à déterminer au moins un rayon (R) de la jante (3), le dispositif de détection présentant un bras de détection (7) étirable doté à son extrémité d'une tête de détection (8). Pour réaliser ce dispositif de manière à retrouver plus facilement le plan d'équilibrage et à simplifier le placement du poids d'équilibrage dans le plan d'équilibrage, il est prévu, selon l'invention, de réaliser le bras de détection (7) de sorte que la tête de détection (8) peut se déplacer vers la partie inférieure de la cavité de jante (6) et qu'un dispositif de signalisation (10) est relié au dispositif d'évaluation au niveau de la tête de détection (8), ledit dispositif servant à signaler et à trouver le plan d'équilibrage (E) et/ou l'angle d'équilibrage.
PCT/EP2000/008462 1999-09-01 2000-08-30 Procede et dispositif de compensation d'un desiquilibre au niveau d'une roue de vehicule WO2001016572A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00964066A EP1208365A1 (fr) 1999-09-01 2000-08-30 Procede et dispositif de compensation d'un desiquilibre au niveau d'une roue de vehicule
AU75120/00A AU7512000A (en) 1999-09-01 2000-08-30 Method and device for balancing an imbalance in a vehicle wheel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19941597.8 1999-09-01
DE1999141597 DE19941597A1 (de) 1999-09-01 1999-09-01 Vorrichtung und Verfahren zum Ausgleich einer Unwucht an einem Kraftfahrzeugrad

Publications (1)

Publication Number Publication Date
WO2001016572A1 true WO2001016572A1 (fr) 2001-03-08

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Family Applications (1)

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PCT/EP2000/008462 WO2001016572A1 (fr) 1999-09-01 2000-08-30 Procede et dispositif de compensation d'un desiquilibre au niveau d'une roue de vehicule

Country Status (4)

Country Link
EP (1) EP1208365A1 (fr)
AU (1) AU7512000A (fr)
DE (1) DE19941597A1 (fr)
WO (1) WO2001016572A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1398610A1 (fr) * 2002-09-13 2004-03-17 Snap-on Equipment Srl a unico socio. Procédé et dispositif de détermination des données géométriques d'une roue d'un véhicule à moteur, montée rotative sur un axe de rotation
CN106768642A (zh) * 2016-12-30 2017-05-31 北京化工大学 一种实现旋转机械在线自动平衡的剖分式自动平衡装置
CN116495026A (zh) * 2023-06-19 2023-07-28 成都铁安科技有限责任公司 一种用于调节轮对损伤检测杆的方法及其系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015108187B4 (de) * 2015-05-22 2017-12-14 Schenck Rotec Gmbh Verfahren zur Anbringung eines Ausgleichsgewichts an einer Welle und eine Vorrichtung hierfür

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Publication number Priority date Publication date Assignee Title
FR2326697A1 (fr) * 1975-10-02 1977-04-29 Facom Dispositif pour determiner la position que doit occuper une masse d'equilibrage de roue, notamment de vehicule automobile
DE4325533A1 (de) * 1993-07-29 1995-02-02 Hofmann Werkstatt Technik Auswuchtmaschine zum Unwuchtausgleich an Rotationskörpern
EP0642007A2 (fr) * 1993-09-07 1995-03-08 Hofmann Werkstatt-Technik Gmbh Machine d'équilibrage pourvue d'un dispositif de détermination des données géométriques de corps à rotation et procédé d'équilibrage de ces corps

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DE3908866A1 (de) * 1988-09-28 1990-03-29 Dynabal Corp Dateneingabevorrichtung fuer eine auswuchtmaschine
DE4229865C2 (de) * 1992-09-07 1994-12-22 Hofmann Werkstatt Technik Verfahren zum Ausgleichen der Unwucht eines Kraftfahrzeugrades und Vorrichtung zur Durchführung des Verfahrens
DE9302023U1 (fr) * 1993-02-12 1993-04-15 Hofmann Werkstatt-Technik Gmbh, 6102 Pfungstadt, De
IT234933Y1 (it) * 1994-05-04 2000-03-20 Corghi Spa Macchina equilibatrice di ruote di autoveicoli, in particolare per ruote con cerchioni in lega leggera.
DE4415931C2 (de) * 1994-05-05 1996-04-11 Hofmann Werkstatt Technik Verfahren zum Ausgleich einer Unwucht an einem Kraftfahrzeugrad und Vorrichtung zur Durchführung des Verfahrens
DE4418219B4 (de) * 1994-05-25 2004-02-05 Snap-On Equipment Gmbh Verfahren zum Unwuchtausgleich an einem Kraftfahrzeugrad und Vorrichtung zur Durchführung des Verfahrens
DE4432016B4 (de) * 1994-09-08 2005-06-02 Beissbarth Gmbh Verfahren und Vorrichtung zum Auswuchten eines Rades
FR2730056B1 (fr) * 1995-01-27 1997-04-11 Muller Bem Dispositif de detection et de mesure d'emplacement sur corps tournant, et machine d'equilibrage de corps tournant
US5915274A (en) * 1996-06-21 1999-06-22 Hunter Engineering Company Method of correcting imbalance on a motor vehicle wheel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2326697A1 (fr) * 1975-10-02 1977-04-29 Facom Dispositif pour determiner la position que doit occuper une masse d'equilibrage de roue, notamment de vehicule automobile
DE4325533A1 (de) * 1993-07-29 1995-02-02 Hofmann Werkstatt Technik Auswuchtmaschine zum Unwuchtausgleich an Rotationskörpern
EP0642007A2 (fr) * 1993-09-07 1995-03-08 Hofmann Werkstatt-Technik Gmbh Machine d'équilibrage pourvue d'un dispositif de détermination des données géométriques de corps à rotation et procédé d'équilibrage de ces corps

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1398610A1 (fr) * 2002-09-13 2004-03-17 Snap-on Equipment Srl a unico socio. Procédé et dispositif de détermination des données géométriques d'une roue d'un véhicule à moteur, montée rotative sur un axe de rotation
CN106768642A (zh) * 2016-12-30 2017-05-31 北京化工大学 一种实现旋转机械在线自动平衡的剖分式自动平衡装置
CN106768642B (zh) * 2016-12-30 2019-01-04 北京化工大学 一种实现旋转机械在线自动平衡的剖分式自动平衡装置
CN116495026A (zh) * 2023-06-19 2023-07-28 成都铁安科技有限责任公司 一种用于调节轮对损伤检测杆的方法及其系统
CN116495026B (zh) * 2023-06-19 2023-08-29 成都铁安科技有限责任公司 一种用于调节轮对损伤检测杆的方法及其系统

Also Published As

Publication number Publication date
DE19941597A1 (de) 2001-03-29
EP1208365A1 (fr) 2002-05-29
AU7512000A (en) 2001-03-26

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