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US-20260126089-A1 - Multipart Brake Disc, Friction Disc Ring Part, Securing Element, and Method for Producing a Brake Disc

US20260126089A1US 20260126089 A1US20260126089 A1US 20260126089A1US-20260126089-A1

Abstract

The invention relates to a multi-part brake disk, in particular a lightweight brake disk, with a friction disk ring part and with a receiving cup part, in which the friction disk ring part is arranged radially on the outside of the receiving cup part in a torque-proof manner, in which the friction disk ring part and the receiving cup part are additionally operatively connected to one another by means of at least one elongate fastening element, whereby the at least one elongate fastening element is arranged in a through-hole of the receiving cup part and in a bore hole in the friction ring part, whereby the multi-part brake disk is characterized in that the at least one elongate fastening element is arranged so as to be merely inserted into both the receiving cup part and the friction disk ring part, whereby the at least one elongate fastening element is arranged in a frictionally locked manner in the friction disk ring part.

Inventors

  • Lars Gorschlüter
  • Jörg Gorschlüter
  • Felix Schulte

Assignees

  • GOTEC Gorschlüter GmbH

Dates

Publication Date
20260507
Application Date
20240328
Priority Date
20230329

Claims (20)

  1. 1 - 44 . (canceled)
  2. 45 . A multi-part brake disk, in particular a lightweight brake disk, with a friction disk ring part and with a receiving pot part, in which the friction disk ring part is arranged radially outside on the receiving pot part torque-proof, in which the friction disk ring part and the receiving pot part are additionally operatively connected to one another by means of at least one elongate fastening element, whereby the at least one elongate fastening element is arranged in a through-hole of the receiving pot part and in a bore hole of the friction disk ring part, wherein the at least one elongate fastening element is arranged merely inserted into both the receiving pot part and the friction disk ring part, and the at least one elongate fastening element is arranged in a frictionally locked manner in the friction disk ring part, wherein, optionally, the at least one elongate fastening element and/or the receiving pot part can have a surface coating, in particular a corrosion coating.
  3. 46 . A multi-part brake disk according to claim 45 , wherein the at least one elongate fastening element is arranged in the friction disk ring part by means of a press fit connection and/or the at least one elongate fastening element is arranged form-fitting in the friction disk ring part, whereby in particular the at least one elongate fastening element is arranged form-fitting in the friction disk ring part by means of a form-fitting connection.
  4. 47 . Multi-part brake disc according to claim 45 , wherein the at least one elongate fastening element has at least partially a surface structure on its jacket surface, preferably a directed surface structure, wherein in particular the surface structure comprises grooves, scores or the like, and wherein in particular the surface structure extends directed in the longitudinal direction of the elongate fastening element; and/or is a pin element ( 36 ), in particular a longitudinally slotted pin element ( 36 ) and/or is a hollow pin element, in particular a heavy-duty spring pin, whereby the elongate fastening element has a toothed slot.
  5. 48 . A multi-part brake disk according to claim 45 , wherein the at least one elongate fastening element in the unloaded state has an outer diameter of 4.5 mm or greater, preferably 5.5 mm or greater, and more preferably 6 mm or greater, and/or an outer diameter of 9 mm or less, preferably 8 mm or less, and more preferably 6 mm or less and/or a length of 5 mm or longer, preferably 8 mm or longer, and more preferably 10 mm or longer, and/or has a length of 18 mm or less, preferably 15 mm or less, and more preferably 12 mm or less and/or a mass of 2.2 g or less, preferably 1.8 g or less, and more preferably 1.2 g or less, and/or has a mass of 0.4 g or greater, preferably 0.6 g or greater, and more preferably 0.8 g or greater.
  6. 49 . A multi-part brake disk according to claim 45 , characterized in that the at least one elongate fastening element has a base body made of steel and/or has a cylindrical base body and/or has a head area and a shaft area.
  7. 50 . A multi-part brake disk according to claim 45 , characterized in that the at least one elongate fastening element has a ventilation opening or ventilating the friction disk ring part.
  8. 51 . A multi-part brake disk according to claim 45 , characterized by a loss prevention device, by means of which the friction disk ring part and the receiving pot part are secured to one another, in particular axially secured, whereby the loss prevention device has at least one friction and/or form-fitting connection comprising at least one elongate fastening element, wherein, optionally, the loss prevention device can have an arrangement with a hardness gradient that slopes down from the at least one elongate fastening element to the friction disk ring part.
  9. 52 . A multi-part brake disk according to claim 45 , characterized in that the receiving pot part has a cylindrical receiving area with a cylindrical receiving surface arranged radially outward for receiving the ring part inner side.
  10. 53 . A multi-part brake disk according to claim 45 , characterized in that the receiving pot part has a cylindrical receiving area with an outer diameter Da and the friction disk ring part has an inner diameter D i , wherein the ratio D a /D i is 1.01 or greater, preferably 1.02 or greater.
  11. 54 . A multi-part brake disk according to claim 45 , characterized in that the receiving pot part has a cylindrical receiving area with an outer diameter Da and the friction disk ring part has an inner diameter D i , wherein the ratio D a /D i is 1.06 or less, preferably 1.05 or less.
  12. 55 . A multi-part brake disk according to claim 45 , characterized in that the receiving pot part has a cylindrical receiving area with an outer diameter D a and the friction disk ring part has an inner diameter D i , wherein the ratio D a /D i is 1.00088 or greater, preferably 1.00089 or greater, and more preferably 1.0009 or greater.
  13. 56 . A multi-part brake disk according to claim 45 , characterized in that the receiving pot part has a cylindrical receiving area with an outer diameter D a and the friction disk ring part has an inner diameter D i , wherein the ratio D a /D i is 1.00027 or greater, preferably 1.00025 or smaller, and more preferably 1.00022 or greater.
  14. 57 . A multi-part brake disk according to claim 45 , characterized in that the friction disk ring part has an inner diameter D i , of 164.9 mm or larger, preferably 165 mm or larger, and more preferably 165.05 mm or larger and/or of 166 mm or smaller, preferably of 165.063 mm or smaller, and more preferably of 165 mm or smaller.
  15. 58 . A multi-part brake disk according to claim 45 , characterized in that the receiving pot part has an outer diameter Da of 164.95 mm or larger, preferably 165 mm or larger, and more preferably 165.05 mm or larger and/or of 165.5 mm or smaller, preferably of 165.15 mm or smaller, and more preferably of 165 mm or smaller.
  16. 59 . A multi-part brake disk according to claim 45 , characterized in that the bore hole ( 10 ; 110 ) made in the friction disk ring part ( 2 ; 102 ; 202 ) is thread-free.
  17. 60 . A multi-part brake disk according to claim 45 , characterized in that the bore hole made in the friction disk ring part has two hole diameter ranges that are different from one another, whereby in particular a larger hole diameter range of the bore hole is arranged radially further inward than a smaller hole diameter range of the bore hole, wherein, optionally, the smaller hole diameter area arranged radially further outward, the at least one elongate fastening element is fastened to the friction disk ring part and/or in the larger hole diameter area arranged radially further inward, on the one hand the at least one elongate fastening element is arranged and on the other hand material of the receiving pot part (can be introduced and/or an edge area of the through-hole of the receiving pot part can be displaced into the larger hole diameter region arranged radially further inward.
  18. 61 . A multi-part brake disk according to claim 45 , characterized in that the bore hole has an introduction space for introducing material of the receiving pot part, whereby in particular the introduction space has a hole diameter that is larger than the outer diameter of the at least one fastening element, which is arranged in the introduction space.
  19. 62 . A multi-part brake disk according to claim 45 , characterized in that the friction disk ring part has crack prevention holes that are arranged radially further outward at the respective end of the hole bores.
  20. 63 . A multi-part brake disk according to claim 45 , characterized in that the through-hole of the receiving pot part and the bore hole of the friction disk ring part each have a hole diameter L-D i and the at least one elongate fastening element has a pin diameter S-D a , whereby the ratio S-D a /L-D i is 1.0551 or greater, preferably 1.0593 or greater, and more preferably 1.0612 or greater, and/or whereby the ratio S-D a /L-D i is 1.0751 or less, preferably 1.0712 or less, and more preferably 1.0631 or less.

Description

The invention relates to a multi-part brake disk, in particular a lightweight brake disk, with a friction disk ring part and with a receiving pot part, in which the friction disk ring part is arranged radially on the outside of the receiving pot part in a torque-proof manner, in which the friction disk ring part and the receiving pot part are additionally operatively connected to one another by means of at least one elongate fastening element, whereby the at least one elongate fastening element is arranged in a through-hole of the receiving pot part and in a hole in the friction ring part. The invention relates to a friction disk ring part for a multi-part brake disk. The invention also relates to a fastening element for a multi-part brake disk. The invention relates to a method of manufacturing a brake disk from several functional parts in which a friction disk ring part with an internal diameter is arranged on a radial externally arranged receiving surface with an external diameter of a receiving pot part. Generic multi-part brake disks are known from the prior art and can be used, for example, on vehicles, in particular on motor vehicles, such as cars, trucks, or the like. Here, the brake disks can be fastened to wheel hubs of the vehicle with a screw joint. Such brake disks are often made up of several parts, i.e., the brake disks each have a generally cup-shaped receiving part to which the actual friction disk of the brake disk is attached, whereby the friction disk can interact with brake pads of the brake system if necessary, while the cup-shaped receiving part is screwed to the wheel hub of the vehicle axle. The present invention is based on the objective of providing an improvement or an alternative to the state of the art. According to a first aspect of the invention, the stated object is achieved by a multi-part brake disk, in particular a lightweight brake disk, with a friction disk ring part and with a receiving pot part, in which the friction disk ring part is arranged radially on the outside of the receiving pot part in a torque-proof manner, in which the friction disk ring part and the receiving pot part are additionally operatively connected to one another by means of at least one elongate fastening element, whereby the at least one elongate fastening element is arranged in a through-hole of the receiving pot part and in a hole in the friction disk ring part, whereby the at least one elongate fastening element is arranged so as to be merely inserted into both the receiving pot part and the friction disk ring part, and whereby the at least one elongate fastening element is arranged in a frictionally locked manner in the friction disk ring part. Because the fastening element is only inserted into the two functional components, an additional interaction between the functional components friction disk ring part and receiving pot part and the fastening element can be created in an extremely simple construction. In particular, complex threaded holes in the friction disk ring part and/or in the receiving pot part can be dispensed with in order to hold the fastening element to the brake disk. In this respect, multi-part brake disks can be manufactured significantly more cost-effectively using the present invention. Conceptually, the following is explained: The invention relates to both solid and internally ventilated brake disks. Here, both several through-holes and several bore holes can be distributed in the circumferential direction of the brake disk and thus also in the circumferential direction of the friction disk ring part or receiving pot part. In the sense of the invention, the term “bore” refers to any type and shape of openings or holes that extend in a radial direction in the respective functional component. In particular, the hole can extend as a blind hole or as a continuous hole in the friction disk ring part, for example, also as part of an internal ventilation of a friction disk ring part. In this respect, the fastening element can be at least partially integrated in a ventilation channel of the friction disk ring part, or can be arranged completely in the solid material of one friction disk half of two friction disk halves of the friction disk ring part. In the context of the present patent application, “elongate” is to be understood as a pin which has a longitudinal extension, whereby the pin is longer along its longitudinal extension than it is in its transverse extension, in particular by more than 20%, especially more than 30% longer, whereby the transverse extension is preferably its diameter and/or whereby the longitudinal extension can preferably be understood as along a longitudinal axis, especially a rotational symmetry axis, of the fastening element. While the friction disk ring part is preferably made of a cast material, the receiving pot part preferably consists of a sheet metal construction. Like the bore hole, the through-hole is preferably designed to be completely