WO2010139389A1 - Frein à ressort à desserrage pneumatique - Google Patents

Frein à ressort à desserrage pneumatique Download PDF

Info

Publication number
WO2010139389A1
WO2010139389A1 PCT/EP2010/002943 EP2010002943W WO2010139389A1 WO 2010139389 A1 WO2010139389 A1 WO 2010139389A1 EP 2010002943 W EP2010002943 W EP 2010002943W WO 2010139389 A1 WO2010139389 A1 WO 2010139389A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
outer body
lüftkolbenabschnitt
brake disc
pneumatically
Prior art date
Application number
PCT/EP2010/002943
Other languages
German (de)
English (en)
Inventor
Friedrich Tronicke
Thomas Haseker
Original Assignee
Stromag Ag
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 Stromag Ag filed Critical Stromag Ag
Publication of WO2010139389A1 publication Critical patent/WO2010139389A1/fr

Links

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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • F16D65/186—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes with full-face force-applying member, e.g. annular
    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
    • F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
    • F16D55/36—Brakes with a plurality of rotating discs all lying side by side
    • F16D55/38—Brakes with a plurality of rotating discs all lying side by side mechanically actuated
    • 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
    • F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
    • F16D59/02—Self-acting brakes, e.g. coming into operation at a predetermined speed spring-loaded and adapted to be released by mechanical, fluid, or electromagnetic means
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/12—Fluid pressure for releasing a normally applied brake, the type of actuator being irrelevant or not provided for in groups F16D2121/04 - F16D2121/10
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/14—Mechanical

Definitions

  • the invention relates to a pneumatically released spring-loaded brake with an outer body and with an inner body, wherein the outer and inner bodies are rotatably mounted coaxially relative to a brake rotational axis relative to each other, and with a multi-part brake disc assembly whose parts are rotatably connected to the outer body or the inner body slidably , And with a spring-loaded brake piston portion and a pneumatically actuated L favorkolbenabites, which are mounted coaxially displaceable relative to the brake disc assembly, and with an axial stop for the brake disc assembly, which is provided on the brake piston opposite side of the brake disc assembly.
  • Such a spring-loaded brake which is pneumatically released, is well known by the Applicant's Brake KLB 50.
  • the known multi-disc brake achieves its braking effect by spring pressure.
  • acted upon by a compression springs brake piston with an annular brake piston portion acts on a disk set, which is axially supported on the opposite side of the brake piston to an axial stop.
  • the brake piston is ventilated via a ring shaped L Representativekolbenabexcellent on the brake piston, which limits a ringpaltförmi- cylinder space.
  • the cylinder chamber can be pressurized pneumatically, whereby the brake piston can be axially moved away from the disk pack against the pressure forces of the compression springs. As a result, the disk pack is released and the brake is released.
  • the object of the invention is to provide a spring-loaded brake of the type mentioned, which allows the transmission of high braking torque at the same time compact radial space.
  • the coupling elements may be positively, positively or materially connected directly or indirectly with the L Representativekolbenabterrorism and the brake piston section.
  • the at least one coupling element abut only on impact with its opposite end faces on the brake piston section and the L generallykolbenabterrorism defining components.
  • a plurality of coupling elements are provided, they are preferably provided with identical axial length. In a particularly advantageous manner, all coupling elements are designed as identical parts and thus identical to one another.
  • each coupling element is a one-piece component, which is dimensionally stable, in order to be able to transmit the occurring compressive forces between the L generallykolbenabites and the brake piston without deformation and consequently lossless.
  • the coupling elements are made of steel.
  • the coupling elements are passed radially outside of the brake disc assembly at this. Depending on the design of the Brake, it is also possible to pass the coupling elements radially within the brake disc assembly.
  • the outer body is designed to be fixed in a preferred embodiment and the inner body mounted rotatably relative to the outer body. In another advantageous embodiment, however, the inner body is designed to be fixed and the outer body is - mounted as a rotor - rotatable relative to the inner body.
  • a plurality of evenly distributed over the circumference of the outer body coupling pins are provided as coupling elements, which are guided axially parallel to the brake rotational axis linearly displaceable in corresponding axial passages of the outer body.
  • the coupling pins are made of a metal alloy, in a particularly advantageous manner of steel.
  • each coupling pin is supported with its opposite end faces on a part containing the brake piston portion on the one hand and on a component comprising the Lsymmetrickolbenabites on the other hand.
  • the frontal support thus achieves the desired operative connection.
  • a pneumatically released multi-disc brake 1 has an outer body 2 to 5, which is fixedly mounted during operation of the multi-disc brake 1.
  • the illustrated multi-disc brake 1 serves as a holding brake on a gearbox of a railway rolling stock system for trucks.
  • the outer body 2 to 5 is flanged by unspecified screws during operation of the multi-disc brake 1 to a housing of the transmission.
  • the outer body 2 to 5 defines a brake rotational axis D.
  • Coaxially to the brake rotational axis D is within the bell-shaped outer body 2 to 5, an inner body 11 rotatably mounted, which is designed hub-shaped and held by a groove / spring connection 13 on a brake shaft 12.
  • the inner body 11 is provided with a coaxial with the brake rotational axis D external toothing C, which allows a rotationally fixed, but axially displaceable entrainment of a plurality of inner disks 7 of a disk set 6.
  • the outer body 2 to 5 has a coaxial with the internal toothing C and radially spaced from the outer toothing internal toothing 9, on which a plurality of outer plates 8 are rotatably held but axially displaceable.
  • the inner and outer plates 7, 8 are arranged axially alternately to each other.
  • the axially displaceable plate pack 6 is axially limited by an axial stop 3, which is part of the outer body 2.
  • a L preferredkolben 19 is provided, which is mounted in a cylinder portion 2 of the outer body 2 to 5 coaxial with the brake rotational axis D slidably. From the perspective of the disk set 6, the L bulkkolben 19 is positioned axially behind the axial stop 3.
  • the L bulkkolben 19 defines together with the cylinder portion 2, a pressure chamber 20 which is inserted through a coaxial with the brake rotational axis D in the cylinder section 2 pneumatic connection 22 with compressed air can be acted upon.
  • the L representativekolben 19 extends disc-shaped over the entire inner diameter of the cylinder portion 2, since the brake shaft 12 terminates axially at a distance from the L predominantkolben 19.
  • the pneumatic connection 22 is screwed into a connection bore of the cylinder section 2.
  • a manual release screw 23 can be screwed into the connection bore.
  • the upper half of the drawing shows the released by the manual release screw 23 function of the spring pressure brake.
  • the lower half of the drawing discloses the brake function in which the pressure chamber 20 is vented.
  • a high return pressure can be exercised by the L principalkolben 19 despite the comparatively low pneumatic pressures to about 6 to 7 bar. Consequently, the compression springs can be designed strongly, so that a high brake pressure can be achieved.
  • a plurality of coupling pins 21 are axially provided between the brake piston 15 and the L predominantlykolben 19 axially aligned parallel to the brake rotational axis D and in an axial passage of a housing portion 4 of the outer body 2 to 5 are guided linearly displaceable.
  • the coupling pins 21 are supported with their end faces on an outer end face of the Lcomparativelykolbens 19, which is also extending in a radial plane relative to the brake rotational axis D.
  • the length of the coupling pins 21 is dimensioned such that the brake piston 15 and the L predominantlykolben 19 are held at a constant axial distance from each other, which causes an air or brake function of the brake piston 15.
  • the different states namely the release state and the braking state, are shown in the drawing above and below the brake rotational axis D.
  • the end face of the L representativekolbens 19, on which the coupling elements 21 are supported, is provided with the reference numeral 24.
  • the individual parts of the outer body 2 are connected to each other by unspecified screw to a one-piece body.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un frein à ressort pouvant être utilisé comme frein d'arrêt pour une transmission de véhicule et présentant un corps extérieur (2-5) et un corps intérieur (11), logés rotatifs l'un par rapport à l'autre, un agencement de disques de frein en plusieurs parties (6), dont les parties sont reliées de manière bloquée en rotation et axialement coulissante avec le corps extérieur ou le corps intérieur. Le frein à ressort présente également une section de piston de frein (15,17) soumise à une force de ressort et une section de piston pneumatique (3) soumise à une action pneumatique (3), qui sont logées de manière coaxialement coulissante par rapport à l'agencement de disques de frein, ainsi qu'une butée axiale pour l'agencement de disques de frein agencée sur le côté opposé à la section de disques de frein de l'agencement de disques de frein. Selon l'invention, la section de piston pneumatique et la section de piston de frein sont agencées sur des côtés axiaux opposés l'un à l'autre de l'agencement de disques de frein. En outre, au moins un élément d'accouplement (21) contournant de manière radialement décalée l'agencement de disques de frein permet de mettre la section de piston pneumatique et la section de piston de frein en liaison active axialement l'une avec l'autre. L'invention concerne également l'utilisation du frein à ressort comme frein d'arrêt pour une transmission de véhicule.
PCT/EP2010/002943 2009-06-03 2010-05-12 Frein à ressort à desserrage pneumatique WO2010139389A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910024643 DE102009024643A1 (de) 2009-06-03 2009-06-03 Pneumatisch gelüftete Federdruckbremse
DE102009024643.6 2009-06-03

Publications (1)

Publication Number Publication Date
WO2010139389A1 true WO2010139389A1 (fr) 2010-12-09

Family

ID=42542718

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/002943 WO2010139389A1 (fr) 2009-06-03 2010-05-12 Frein à ressort à desserrage pneumatique

Country Status (2)

Country Link
DE (2) DE202009018094U1 (fr)
WO (1) WO2010139389A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9915305B2 (en) * 2016-06-08 2018-03-13 Deere & Company Retention pin having foot for holding spring in disc brake pack reaction plate during assembly and for operating stator disc

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581637A (en) * 1947-11-03 1952-01-08 Danly Mach Specialties Inc Clutch assembly for presses
DE2823038A1 (de) * 1977-05-27 1978-12-14 Lambert & Brake Corp Hydraulische, doppelt betaetigbare bremse
US4607730A (en) * 1983-12-09 1986-08-26 Deere & Company Brake mechanism

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3082647A (en) * 1954-08-05 1963-03-26 Fawick Corp Accessory drive control mechanism
US3559772A (en) * 1968-09-24 1971-02-02 Nat Machinery Co The Spring applied, fluid pressure released brake
US3863038A (en) * 1973-06-26 1975-01-28 Lambert & Brake Corp Disc brake

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581637A (en) * 1947-11-03 1952-01-08 Danly Mach Specialties Inc Clutch assembly for presses
DE2823038A1 (de) * 1977-05-27 1978-12-14 Lambert & Brake Corp Hydraulische, doppelt betaetigbare bremse
US4607730A (en) * 1983-12-09 1986-08-26 Deere & Company Brake mechanism

Also Published As

Publication number Publication date
DE202009018094U1 (de) 2011-02-10
DE102009024643A1 (de) 2010-12-23

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