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
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D13/00—Friction clutches
  • F16D13/58—Details
  • F16D13/74—Features relating to lubrication
• • 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
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D13/00—Friction clutches
  • F16D13/58—Details
  • F16D13/60—Clutching elements
  • F16D13/64—Clutch-plates; Clutch-lamellae
  • F16D13/68—Attachments of plates or lamellae to their supports
  • F16D13/683—Attachments of plates or lamellae to their supports for clutches with multiple lamellae

Definitions

• the invention relates to a disk carrier having a cylindrical peripheral wall, which has a first peripheral wall portion having a first diameter and an axially adjoining second peripheral portion having a second diameter, wherein the second diameter is greater than the first diameter and the first peripheral portion and the second peripheral portion connected by a radial annular shoulder, web-like axial fins, which are formed on an inner side of the first peripheral portion and / or the second peripheral portion, and an annular groove which on an inner side of the annular shoulder and between the second peripheral portion and a radially inner lying, axially projecting groove wall is formed, which has radial openings, according to the preamble of claim 1.
• Plate carriers also called clutch plate carriers, are a component which is used in clutches of vehicle transmissions.
• Disk carrier are designed substantially cup-shaped and have a radially extending hub portion and an axially extending cylindrical peripheral wall portion. Along the inside of the peripheral wall axially extending webs are arranged, which are referred to as lamellae and serve for holding and guiding of clutch plates.
• disk carriers having a cylindrical peripheral wall which has a first peripheral wall section with a first diameter and an axially adjoining second peripheral section with a second, larger diameter. It is known to weld such plate carrier of two or more components. Welded joints are expensive to manufacture.
• annular groove is provided in a radial shoulder area for conveying oil between the two peripheral portions.
• the annular groove is formed between the second peripheral wall portion and a radially inner, axially projecting, annular groove wall. This groove wall is provided with radial openings in order to promote an oil flow in the desired manner.
• this specially shaped radial shoulder region can not be formed, or at least not precisely, in the desired manner. It is therefore known to provide a chip-removing finishing for forming the annular groove and the groove wall with the radial openings in such disk carriers.
• a machining post-processing in the cup-shaped plate carrier is technically complex and can also be carried out only to a limited extent.
• the invention is based on the invention to provide a plate carrier, which is easy to produce and dimensionally accurate.
• the disc carrier according to the invention is characterized in that the disc carrier is integrally formed by Abstreckd Wegwalzen the peripheral wall with the first peripheral portion, the second peripheral portion and the axial blades of an initial workpiece, in which the annular shoulder with the annular groove and the groove wall with the radial Breakthroughs is formed before the Abstreckd Wegwalzen.
• a basic idea of the invention is to produce the plate carrier in one piece by means of an ironing out of an initial tool, in which the annular shoulder region is already preformed and / or finished with the groove wall and the openings.
• the starting workpiece also has a first peripheral portion and a second peripheral portion, which are axially smaller but of the wall thickness stronger than the peripheral portions of the finished plate carrier.
• the invention is based on the recognition that this preformed radial region does not deform, at least not significantly, during the ironing out of the circumferential sections.
• a plate carrier can be produced which has in its peripheral portions a cold-solidified by the Abstreckd Wegwalzen microstructure, while in the region of the annular shoulder, the microstructure of the starting workpiece is hardly changed.
• It can be made as a plate carrier, which has a precisely manufactured annular shoulder portion and yet efficiently manufactured by pressure rolling or Abstreckd Wegwalzen in one piece.
• the starting workpiece can be produced as desired, for example by casting, forming or machining. It is particularly advantageous according to an embodiment of the invention that the starting workpiece is a forging workpiece. As a result, the entire workpiece can be produced particularly efficiently and with high strength.
• a further preferred embodiment of the invention is that the annular shoulder is formed with the annular groove and the groove wall with the radial openings machined.
• the starting workpiece can be machined with a relatively small axial length such as by a lathe or a milling machine efficiently and with high precision.
• the annular groove and the radial openings can thus be generated efficiently.
• the axial lamellae are arranged distributed uniformly over the circumference at the first peripheral portion and / or the second peripheral portion and extend at least along an axial portion of the peripheral wall.
• the lamellae can be formed in the ironing out rollers, in which the material is formed in a corresponding contouring on a spinning chuck.
• a further advantageous embodiment of the invention consists in that the axial lamellae on the second circumferential section extend axially from the annular shoulder to a free end of the circumferential wall.
• the second peripheral portion can be used in its entire axial length approximately for holding and guiding of clutch discs.
• the peripheral wall of the cup-shaped disk carrier can be designed to be closed.
• openings are made in the peripheral wall.
• the openings can be introduced after the spin forming by a corresponding material-removing machining.
• a sleeve-shaped hub is arranged on the radial hub region.
• the hub may preferably be provided with a keyway to produce a positive shaft-hub connection.
• the invention is basically not limited to a plate carrier.
• the invention also includes a method for producing a plate carrier having a cylindrical peripheral wall, which has a first peripheral wall section with a first diameter and an axially adjoining second peripheral section with a second diameter, wherein the second diameter is greater than the first diameter and the first Peripheral portion and the second peripheral portion are connected to each other via a radial annular shoulder, web-like axial slats, which are formed on an inner side of the first peripheral portion and / or the second peripheral portion and an annular groove which on an inner side of the annular shoulder and between the second peripheral portion and a radially inner, axially predominantly Henden groove wall is formed, which has radial openings, wherein it is provided that the plate carrier is integrally formed by Abstreckdrückwalzen a peripheral wall with the first peripheral portion, the second peripheral portion and the axial blades of an output workpiece, in which the annular shoulder with the annular groove and the groove wall with the radial openings before the Abstre
• the method is preferably used for producing the previously described disk carrier and its described embodiments.
• FIG. 1 is a partial cross-sectional view of a lamb body carrier according to the invention.
• FIG. 2 is a front view of the disk carrier of FIG. 1 on a reduced scale
• FIG. 3 is a detail cross-sectional view of the plate carrier of FIG. 1; FIG.
• Fig. 4 is a perspective view of an initial workpiece
• Fig. 5 is another perspective view of the starting workpiece of
• the construction of a disk carrier 10 according to the invention will be described in connection with FIGS. 1 to 3.
• the pot-shaped plate carrier 10 has a stepped cylindrical peripheral wall 20 and a disk-shaped hub region 12, in the center region of which a sleeve-shaped hub 14 is formed.
• the peripheral wall 20 includes a first peripheral portion 21 having a first diameter and a second peripheral portion 22 having a second diameter. The second diameter of the second peripheral portion 22 is larger than the first diameter of the first circumferential portion 21.
• the second peripheral portion 22 is connected to the first peripheral portion 21.
• first Peripheral portion 21 On a cylindrical inside of the first Peripheral portion 21 are radially inwardly projecting, web-like first slats 23 are formed.
• second peripheral portion 22 On the inside of the second peripheral portion 22 web-shaped second fins 24 are formed, which extend from the annular shoulder 30 to a free end of the peripheral wall 20. Between the second fins 24 of the second peripheral portion 22, two openings 28 are formed in each space.
• annular groove 32 is formed between the second peripheral portion 22 and a radially inwardly disposed annular groove wall 34.
• recesses or openings 34 are introduced at regular intervals, wherein intermediate axial projections 38 are formed.
• the axial projections 38 serve as an axial stop surface for clutch plates, which can be arranged within the second peripheral portion 22. Lubricant and / or air can be exchanged between the two regions on the first circumferential section 21 and the second peripheral section 22 via the annular groove 32 and the openings 36 during operation of the disk carrier 10 in a coupling.
• An inner side 25 of the first peripheral portion 21 flows smoothly into an inner side at the annular groove wall 34.
• the plate carrier 10 is made from a starting workpiece 50, which is preferably formed as a forged part and illustratively shown in Figures 4 and 5.
• the rotationally symmetrical output workpiece 50 has a hub region 12 with a sleeve-shaped hub 14, which are preferably shaped in accordance with the hub region 12 and the hub 14 of the finished plate carrier 10.
• a peripheral wall with a first wall portion 51 and an adjoining second wall portion 52 is arranged.
• the wall thicknesses of the two wall portions 51, 52 of the starting workpiece 50 are thicker than the wall thicknesses of the first and second peripheral portion 21, 22 of the finished plate carrier 10.
• the two wall portions 51, 52 are thinned and stretched by Abstreckd Wegwalzen and to the first peripheral portion 21 and second peripheral portion 22 is finally formed.
• the radial shoulder 30 with the annular groove 32 and the groove wall 34 is formed between the first wall region 51 and the second wall region 52.
• the openings 36 and the projections 38 are formed in a corresponding manner.
• the final shaping of the groove wall 34 can take place immediately during a forging or, preferably, by machining, which is arranged upstream of the ironing-out rolls.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Mechanical Operated Clutches (AREA)
• Forging (AREA)
• Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
• Manufacturing Of Magnetic Record Carriers (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

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Citations (4)

Family Cites Families (11)

• 2016
  • 2016-12-09 DE DE202016106877.0U patent/DE202016106877U1/de active Active
• 2017
  • 2017-12-11 KR KR1020197017976A patent/KR102479691B1/ko active Active
  • 2017-12-11 JP JP2019531243A patent/JP6999672B2/ja active Active
  • 2017-12-11 MX MX2019003855A patent/MX2019003855A/es unknown
  • 2017-12-11 WO PCT/EP2017/082163 patent/WO2018104548A1/de not_active Ceased
  • 2017-12-11 EP EP17832203.8A patent/EP3551901B1/de active Active
  • 2017-12-11 ES ES17832203T patent/ES2847576T3/es active Active
  • 2017-12-11 SI SI201730502T patent/SI3551901T1/sl unknown
  • 2017-12-11 PT PT178322038T patent/PT3551901T/pt unknown
  • 2017-12-11 CN CN201780064891.9A patent/CN110073122B/zh active Active
  • 2017-12-11 HU HUE17832203A patent/HUE052139T2/hu unknown

Patent Citations (4)

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