WO2024028055A1 - Module de réglage pour un étrier de frein d'un frein de véhicule, frein de véhicule doté d'un module de réglage de ce type, et procédé de libération d'urgence du module de réglage - Google Patents

Module de réglage pour un étrier de frein d'un frein de véhicule, frein de véhicule doté d'un module de réglage de ce type, et procédé de libération d'urgence du module de réglage Download PDF

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Publication number
WO2024028055A1
WO2024028055A1 PCT/EP2023/069363 EP2023069363W WO2024028055A1 WO 2024028055 A1 WO2024028055 A1 WO 2024028055A1 EP 2023069363 W EP2023069363 W EP 2023069363W WO 2024028055 A1 WO2024028055 A1 WO 2024028055A1
Authority
WO
WIPO (PCT)
Prior art keywords
torque transmission
transmission device
yoke
threaded spindle
designed
Prior art date
Application number
PCT/EP2023/069363
Other languages
German (de)
English (en)
Inventor
Tomasz NIEPALA
Michael Mathieu
Erich Fuderer
Alexander Jung
Harry-Werner Kraus
Andre Stegmann
Original Assignee
Knorr-Bremse Systeme für Schienenfahrzeuge 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 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH filed Critical Knorr-Bremse Systeme für Schienenfahrzeuge GmbH
Publication of WO2024028055A1 publication Critical patent/WO2024028055A1/fr

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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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/2245—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members in which the common actuating member acts on two levers carrying the braking members, e.g. tong-type brakes
    • 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
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
    • F16D65/567—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting on a disc brake

Definitions

  • Adjuster module for a brake caliper of a vehicle brake vehicle brake with such an adjuster module and method for emergency release of the adjuster module
  • the invention relates to an adjuster module for a brake caliper of a vehicle brake, a vehicle brake with such an adjuster module and a method for emergency release of the adjuster module, in particular for rail vehicles.
  • Compact brake calipers are widely used in rail vehicle braking systems.
  • a braking force is generated via an actuator, such as either a pneumatic cylinder or an electromechanical actuator with an electric motor.
  • the brake calipers could be dismantled, but this is only possible with difficulty due to the braked state in which an operating force from the brake tensions the entire brake caliper.
  • an adjuster module for a brake caliper of a vehicle brake in particular for a rail vehicle, has a main axis, a threaded spindle rod aligned along the main axis, a tube nut aligned along the main axis, the threaded spindle rod and the tube nut being designed to have a screw connection device to form a variable overall length, a yoke that can be connected to a first caliper lever of the brake caliper, an actuator housing that can be connected to a second caliper lever of the brake caliper, a distance between the yoke and the actuator housing in the direction of the main axis corresponding to a change in the overall length of the Screw connection device is changeable, a non-positive torque transmission device which has a first friction surface connected in a rotationally fixed manner to the yoke and a second friction surface which is connected in a rotationally fixed manner to a second friction surface connected by the threaded spindle
  • the caliper levers of the brake caliper have brake pads at a first end, which are pressed onto a brake disc in order to achieve a braking effect.
  • one of the caliper levers is pivotally connected to the actuator housing of the adjuster module about a connecting axis and the other caliper lever is pivotally connected to the yoke of the adjuster module of the brake caliper about a connecting axis.
  • the caliper levers can each be pivoted about the parallel connecting axes so that the brake pads move towards each other for braking and move away from each other to release the brake. This pivoting of the caliper levers is driven by a brake actuator, which is connected to the caliper levers via a connecting device between their ends.
  • the brake caliper be adjusted so that the wear of the brake pads is compensated for by a reduced distance between the first ends of the caliper levers. Wear on the brake pads is automatically detected by the brake caliper and compensated for by the adjuster module.
  • the adjuster module increases the distance between the actuator housing and the yoke and thus the distance between the second ends of the caliper levers, whereby the caliper levers are pivoted about the connecting devices of the brake actuator. By pivoting the caliper levers around the connecting devices of the brake actuator between their ends, the distance between the first ends of the caliper levers, on which the brake pads are provided, is reduced when the distance between the actuator housing and the yoke is increased and the wear is compensated for.
  • a so-called emergency release of the actuated brake, in which the brake pads are pressed against a brake disc, is possible by the adjuster module in such a way that the distance between the second ends of the caliper levers, i.e. the distance between the actuator housing and the yoke, is reduced, so that the Pivoting the caliper levers around the connecting devices of the brake actuator increases the distance first ends of the caliper levers, on which the brake pads are provided, are enlarged.
  • the non-positive torque transmission device By providing the non-positive torque transmission device, it is possible, depending on the embodiment, to rotate one of the threaded rod and the tube nut, which is connected to the second friction surface of the non-positive torque transmission device, when the locking element and thus the non-positive torque transmission device are loosened.
  • By relative rotation of one of the threaded rod and the tube nut connected to the second friction surface to the other of the threaded rod and the tube nut determined by the first freewheel device it is possible to increase the distance between the actuator housing and the yoke and thus the first ends of the pliers levers shorten and release the brake without the need for additional energy supply to the brake actuator or disassembly of the brake.
  • the adjuster module advantageously has an adjusting mechanism which has the first freewheel device and an adjusting lever with a second freewheel device, the adjusting lever being connected to the other one of the threaded spindle rod and the tube nut, which is not connected in a rotationally fixed manner to the second friction surface.
  • the adjusting mechanism is designed so that the adjusting lever rotates the other one of the threaded spindle rod and the tube nut, which is not connected in a rotationally fixed manner to the second friction surface, relative to the one of the threaded spindle rod and the tube nut, which is connected in a rotationally fixed manner to the second friction surface, in such a way that when the adjusting lever is pivoted the main axis in a first pivoting direction, the total length of the screw connection device is increased and when the adjusting lever is pivoted about the main axis in a second pivoting direction and when the adjusting lever is at a standstill, the length connected to the adjusting lever Threaded spindle rod or tube nut is held by the first freewheel device.
  • the adjuster module further has a torque transmission element which is arranged between the yoke and one of the threaded spindle rod and the tube nut and is designed to transmit a torque between the one of the threaded spindle rod and the tube nut connected in a rotationally fixed manner to the second friction surface and to transfer to the yoke.
  • the torque transmission element has an element of a torque transmission device defined as a first torque transmission device, which is designed to transmit a torque between the torque transmission element and one of the threaded spindle rod and the tube nut connected in a rotationally fixed manner to the second friction surface, and an element of a torque transmission device defined as a second torque transmission device, which is designed to transmit a torque between the torque transmission element and the yoke.
  • One of the first torque transmission device and the second torque transmission device is formed as a positive torque transmission device and the other of the first torque transmission device and the second torque transmission device is formed as the non-positive torque transmission device, and the positive torque transmission device is designed to be operated by an operating force of the brake caliper, which the yoke and the actuator housing pushes towards one another in the direction of the main axis, is secured against twisting and can be rotated in the event of a lack of operating force.
  • the torque transmission element By providing the torque transmission element with the positive torque transmission device, which is secured against twisting by the operating force of the brake caliper, which pushes the yoke and the actuator housing towards one another in the direction of the main axis, and can be rotated in the absence of the operating force, on the one hand a safe function of the Adjuster module possible during operation, the positive torque transmission device secured by the operating force is.
  • a simple and safe resetting of the adjustment path is possible in a service case in which the operating force is not present, since by rotating the positive torque transmission device, namely its components relative to one another, the threaded spindle rod and the tube nut can be rotated relative to one another without this being necessary to release the non-positive torque transmission device.
  • the torque transmission element is arranged between the yoke and the threaded rod spindle and is designed to transmit the torque between the threaded rod spindle and the yoke
  • the first torque transmission device is designed to transfer the torque between the torque transmission element and the threaded spindle rod transmitted.
  • the first torque transmission device is formed as the non-positive torque transmission device
  • the second torque transmission device is formed as the positive torque transmission device
  • the releasable locking element is formed by a clamping screw in the direction of the main axis, the clamping screw being designed to apply the locking force to the non-positive torque transmission device by screwing into to apply the threaded spindle rod and supports to the torque transmission element.
  • the adjuster module advantageously has a securing device which is designed to secure the releasable locking element against rotation, in particular the securing device having a securing screw which is designed to fasten the head of the clamping screw to the torque transmission element through a hole therein.
  • the screw connection device has such a thread pitch that the screw connection device is designed to be a non-self-locking screw connection device, whereby an automatic resetting of the adjustment path is possible when the locking element is released.
  • the torque transmission element is arranged between the yoke and the tube nut and is designed to transmit the torque between the tube nut and the yoke
  • the first torque transmission device is designed to transmit the torque between the torque transmission element and the tube nut .
  • the first torque transmission device is formed as the positive torque transmission device
  • the second torque transmission device is formed as the non-positive torque transmission device
  • the releasable locking element is formed by a clamping nut, the clamping nut being designed to apply the locking force to the non-positive torque transmission device by screwing onto an axial external thread the torque transmission element and supports on the yoke.
  • the adjuster module advantageously has a securing device which is designed to secure the releasable locking element against rotation, in particular the securing device having a locking plate which has a recess adapted to an outer contour of the clamping nut and which is designed to be in the recess Secure the clamping nut from twisting by screwing the locking plate onto the yoke.
  • the axial external thread on the torque transmission element has a blocking device which is designed to block unscrewing of the clamping nut from the axial external thread on the torque transmission element.
  • the first friction surface and the second friction surface are each shaped like a cone.
  • a vehicle brake in particular for a rail vehicle, has a brake caliper with a first and a second caliper lever, a brake actuator and an adjuster module according to the invention.
  • a method for emergency release of the adjuster module has the steps: releasing the releasable locking element and thereby releasing the locked non-positive torque transmission device; and rotating the threaded spindle rod and the tube nut relative to each other so that the overall length of the screw connection device and thus the distance between the yoke and the actuator housing is reduced.
  • the detachable locking element is released by loosening a clamping screw, and the threaded spindle rod rotates automatically relative to the tube nut due to a non-self-locking screw connection device by an operating force that forces the yoke and the actuator housing together.
  • the detachable locking element is released by loosening a clamping nut and the pipe nut is rotated relative to the threaded spindle rod by further turning the clamping nut until it stops on a blocking device of the axial external thread on the torque transmission element and continuing to turn it again.
  • Fig. 1 is an isometric view of a vehicle brake from diagonally at the top left; 2 is an isometric view of the vehicle brake with an adjuster module of a first embodiment from diagonally at the top right;
  • Fig. 3 is a sectional side view of the first embodiment of the adjuster module of the vehicle brake from Fig. 2;
  • FIG. 4 shows an isometric view of the vehicle brake with an adjuster module of a second embodiment from diagonally at the top right;
  • Fig. 5 is a sectional side view of the second embodiment of the adjuster module from Fig. 4.
  • Fig. 1 shows an isometric view of a vehicle brake 1 from diagonally at the top left.
  • the vehicle brake 1 has a brake caliper with a first caliper lever 2 and a second caliper lever 3. Furthermore, the vehicle brake 1 has a brake actuator 4 and an adjuster module 5.
  • the vehicle brake 1 has a push rod 6, which, driven by the brake actuator 4, drives an adjusting mechanism of the adjuster module 5.
  • Fig. 2 shows an isometric view of the vehicle brake 1 with the adjuster module 5 of a first embodiment from diagonally at the top right and Fig. 3 shows a sectioned side view of the first embodiment of the adjuster module 5 of the vehicle brake 1 from Fig. 2.
  • the reference numbers of the components described below are indicated either only in Fig. 2 or Fig. 3 or in both figures.
  • the adjuster module 5 has a first main axis 7, along which a threaded spindle rod 8 and a tube nut 9 are aligned.
  • the threaded spindle rod 8 and the tube nut 9 are designed to form a screw connection device 10 with a variable total length I.
  • the adjuster module 5 has a yoke 11, which is connected to the first pliers lever 2, and an actuator housing 12, which is connected to the second pliers lever 3.
  • a distance between the yoke 11 and the actuator housing 12 in the direction of the main axis 7 can be changed in accordance with a change in the overall length I of the screw connection device 10.
  • the adjuster module 5 has a torque transmission element 13, which is arranged between the yoke 11 and the threaded spindle rod 8 and is designed to transmit a torque between the threaded spindle rod 8 and the yoke 11.
  • a non-positive torque transmission device 14 is provided between the torque transmission element 13 and the threaded spindle rod 8.
  • the non-positive torque transmission device 14 has a first friction surface 16 which is connected in a rotationally fixed manner to the torque transmission element 13 and a second friction surface 17 which is connected in a rotationally fixed manner to the threaded spindle rod 8.
  • a positive torque transmission device 15 is provided between the torque transmission element 13 and the yoke 11.
  • the positive torque transmission device 15 has a first toothed element 18 of a toothed coupling which is connected in a rotationally fixed manner to the yoke 11 and a second toothed element 19 which is connected in a rotationally fixed manner to the torque transmission element 13.
  • a spring 26 is provided to bias the positive torque transmission device 15. In alternative embodiments, the spring 26 is omitted and the positive torque transmission device 15 is secured only by an operating force of the brake caliper, which forces the yoke 11 and the actuator housing 12 towards one another in the direction of the main axis 7.
  • the positive torque transmission device 15 is designed so that it can be rotated, namely the first toothed element 18 and the second toothed element 19 can be rotated relative to one another, so that it is possible by rotating the threaded spindle rod 8 and the torque transmission device 13 relative to reduce the distance between the yoke 11 and the star housing 12 from the tube nut 9.
  • the tooth elements 18, 19 have axially projecting teeth which engage one another in a form-fitting manner, for example in the form of a Hirth toothing.
  • a positive connection other than the toothed coupling for example pins in bores, is also provided.
  • “Rotationally connected” means that two elements are connected or can be connected to one another in such a way that they rotate together by the same angular amount.
  • the two elements can either be connected directly to one another, consist of one part, or be connected to one another via additional components.
  • the adjuster module 5 has a torque transmission device defined as a first torque transmission device, which is designed to transmit a torque between the torque transmission element 13 and the threaded spindle rod 8 connected in a rotationally fixed manner to the second friction surface 17.
  • the first torque transmission device is formed by the non-positive torque transmission device 14.
  • the torque transmission element 13 has an element of the first torque transmission device, namely the first friction surface 16, and the threaded spindle rod 8 has a further element of the first torque transmission device, namely the second friction surface 17.
  • the adjuster module 5 also has a second
  • Torque transmission device defined torque transmission device, which is designed to transmit a torque between the torque transmission element 13 and the yoke 11.
  • the second torque transmission device is formed by the positive torque transmission device 15.
  • the torque transmission element 13 has an element of the second torque transmission device, namely the second toothed element 19, and the yoke 11 has a further element of the second torque transmission device, namely the first toothed element 18.
  • the adjuster module 5 has an adjusting mechanism which has a first freewheel device 20 and an adjusting lever 21 with a second freewheel device 22.
  • the first freewheel device 20 is designed to detect a rotation of the tube nut 9, which is not connected in a rotationally fixed manner to the second friction surface 17, in a direction of rotation in which the total length I of the screw connection device 10 is reduced.
  • the first freewheel device 20 is formed by a so-called wrap spring freewheel and the second freewheel device is formed by a so-called sleeve freewheel.
  • the freewheeling devices can also be formed by different types of freewheeling devices and/or the adjusting mechanism can have a different structure.
  • the adjusting lever 21 with the second freewheel device 22 is connected to the tube nut 9 which is not connected in a rotationally fixed manner to the second friction surface 17.
  • the adjusting mechanism is designed so that the adjusting lever rotates the tube nut 9 relative to the threaded spindle rod 8 connected in a rotationally fixed manner to the second friction surface 17 in such a way that when the adjusting lever 21 is pivoted about the main axis 7 in a first pivoting direction, the total length I of the screw connection device 10 is increased and when the adjusting lever 21 is pivoted in a second pivoting direction and when the adjusting lever is at a standstill, the tube nut 9 connected to the adjusting lever 21 is held by the first freewheel device 20.
  • the adjuster module 5 has a releasable locking element 23, which is designed to apply a locking force to the first friction surface 16 and second friction surface 17 of the non-positive torque transmission device 14 in a locking state and thus to create a rotationally fixed connection between the yoke 11 and the one with the second friction surface 17 connected threaded spindle rod 8 to produce.
  • the rotationally fixed connection of the yoke 11 to the threaded spindle rod 8 is generated via the positive torque transmission device 15, the torque transmission element 13 and the non-positive torque transmission device 14.
  • the releasable locking element 23 is formed by a clamping screw in the direction of the main axis 7 and applies the locking force to the first friction surface 16 and second friction surface 17 of the non-positive torque transmission device 14 by screwing into the threaded spindle rod 8 with a predetermined torque and supporting it on the torque transmission element 13.
  • another releasable locking element 23, for example with an eccentric, is provided.
  • the adjuster module 5 has a safety device 24.
  • the securing device 24 secures the releasable locking element 23 against rotation relative to the torque transmission element 13.
  • the securing device 24 has two securing screws 25 which fasten the head of the clamping screw to the torque transmission element 13 through a hole therein.
  • a different number of locking screws 25 or a different type of locking device, for example with pins, is provided.
  • the screw connection device 10 namely the threaded spindle rod 8 and the tube nut 9, has such a thread pitch that the screw connection device 10 is a non-self-locking screw connection device.
  • the thread pitch is selected taking into account the friction that occurs so that the threaded spindle rod 8 can rotate relative to the tube nut 9 by the operating force of the brake caliper, which forces the yoke 11 and the actuator housing 12 towards each other, by the distance of the yoke 11 to the actuator housing 12 to reduce when the non-positive torque transmission device 14 is released by loosening the releasable locking element 23.
  • the first friction surface 16 is non-rotatably connected to the yoke 11 and the torque transmission between the yoke 11 and the threaded spindle rod 8 takes place via the first friction surface 16, which is non-rotatably connected to the first yoke 11, and the second friction surface 7, which is non-rotatably connected to the threaded spindle rod 8 .
  • Fig. 4 shows an isometric view of the vehicle brake 1 with the adjuster module 5 of a second embodiment from diagonally at the top right and Fig. 5 shows a sectioned side view of the second embodiment of the adjuster module 5 of the vehicle brake 1 of Fig. 4.
  • the reference numbers of the components described below are indicated either only in Fig. 4 or Fig. 5 or in both figures.
  • the adjuster module 5 also has the first main axis 7', along which the threaded spindle rod 8' and the tube nut 9' are aligned.
  • the threaded spindle rod 8' and the tube nut 9' are designed to form the screw connection device 10' with the variable total length I.
  • the adjuster module 5 also has the yoke 11 ', which is connected to the first pliers lever 2, and the actuator housing 12', which is connected to the second pliers lever 3.
  • the distance between the yoke 11' and the actuator housing 12' can be changed in the direction of the main axis 7' in accordance with a change in the overall length I of the screw connection device 10'.
  • the adjuster module 5 has the torque transmission element 13', which is arranged between the yoke 11' and the tube nut 9' and is designed to transmit a torque between the tube nut 9' and the yoke 11'.
  • a non-positive torque transmission device 14' is provided between the yoke 11' and the torque transmission element 13'.
  • the non-positive torque transmission device 14' has a first friction surface 16' which is non-rotatably connected to the yoke 11' and, as described below, a second friction surface 17' which is non-rotatably connected to the tube nut 9' via the positive torque transmission device 15'.
  • the first friction surface 16' and the second friction surface 17' are each shaped like a cone. In alternative embodiments, the first friction surface 16' and the second friction surface 17' have a different shape, for example a spherical shape
  • a positive torque transmission device 15' is provided between the torque transmission element 13 'and the tube nut 9'.
  • the positive torque transmission device 15' has a first toothed element 18' of a toothed coupling which is non-rotatably connected to the tube nut 9' and a second toothed element 19' which is non-rotatably connected to the torque transmission element 13'.
  • the spring 26' is provided to pretension the positive torque transmission device 15'. In alternative embodiments, the spring 26' is omitted and the positive torque transmission device 15' is secured only by the operating force of the brake caliper, which forces the yoke 11' and the actuator housing 12' towards one another in the direction of the main axis 7'.
  • the positive torque transmission device 15' is designed such that the positive torque transmission device 15' can be rotated, namely the first toothed element 18' and the second toothed element 19' can be rotated relative to one another, so that it is possible by turning the tube nut 9 'to reduce the distance between the yoke 11 and the actuator housing 12.
  • the tooth elements 18', 19' have axially projecting teeth which engage one another in a form-fitting manner, for example in the form of a Hirth toothing.
  • a positive connection other than the toothed coupling for example pins in bores, is also provided.
  • the adjuster module 5 has the torque transmission device defined as the first torque transmission device, which is designed to transmit the torque between the torque transmission element 13 'and the tube nut 9'.
  • the second friction surface 17 ' is connected in a rotationally fixed manner to the tube nut 9 via the torque transmission element 13' and the positive torque transmission device 15'.
  • the first torque transmission device is formed by the positive torque transmission device 15 '.
  • the tube nut 9' has an element of the first torque transmission device, namely the first toothed element 18', and the torque transmission element 13' has a further element of the first torque transmission device, namely the second toothed element 19'.
  • the adjuster module 5 also has a second
  • Torque transmission device defined torque transmission device, which is designed to transmit a torque between the torque transmission element 13 'and the yoke 11'.
  • the second torque transmission device is formed by the non-positive torque transmission device 14 '.
  • the torque transmission element 13' has an element of the second torque transmission device, namely the second friction surface 17', and the yoke 11' has a further element of the second torque transmission device, namely the first friction surface 16'.
  • the adjuster module 5 also has the adjusting mechanism, which has the first freewheel device 20 ', which is designed to allow a rotation of the threaded spindle rod 9', which is not connected in a rotationally fixed manner to the second friction surface 17', in a direction of rotation in which the total length I of the screw connection device 10' is reduced in size, as well as an adjusting lever 21 'with a second freewheel device 22'.
  • the first freewheel device 20 ' is formed by a so-called wrap spring freewheel and the second freewheel device 22' is formed by a so-called sleeve freewheel is formed.
  • the freewheeling devices can also be formed by different types of freewheeling devices and/or the adjusting mechanism can have a different structure.
  • the adjusting lever 21 'with the second freewheel device 22' is connected to the threaded spindle rod 8' which is not connected in a rotationally fixed manner to the second friction surface 17'.
  • the adjusting mechanism is designed so that the adjusting lever 21 'rotates the threaded spindle rod 8' relative to the tube nut 9, which is connected in a rotationally fixed manner to the second friction surface 17', so that when the adjusting lever 21' is pivoted about the main axis 7' in a first pivoting direction, the total length I the screw connection device 10 'is enlarged and when the adjusting lever 21' is pivoted in a second pivoting direction and when the adjusting lever 21' is at a standstill, the threaded spindle rod 8' connected to the adjusting lever 21' is held by the first freewheel device 20'.
  • the adjuster module 5 has the releasable locking element 23', which is designed to apply a locking force to the first friction surface 16' and second friction surface 17' of the non-positive torque transmission device 14' in a locking state and thus to create a rotationally fixed connection between the yoke 11 'and the tube nut 9' which is connected in a rotationally fixed manner to the second friction surface 17'.
  • the non-rotatable connection of the yoke 11 to the tube nut 9' is created via the non-positive torque transmission device 14', the torque transmission element 13' and the positive torque transmission device 15'.
  • the releasable locking element 23 ' is formed by a clamping nut and brings the locking force to the first friction surface 16' and second friction surface 17' of the non-positive torque transmission device 14' by screwing them onto an axial External thread 28 on the torque transmission element 13 'and supported on the yoke 11'.
  • the adjuster module 5 has the securing device 24'.
  • the securing device 24' secures the releasable locking element 23' against rotation relative to the torque transmission element 13'.
  • the securing device 24 ' has a locking plate 27, which has a recess adapted to an outer contour of the clamping nut and is designed to secure the clamping nut received in the recess from twisting by screwing the locking plate 27 to the yoke 11'.
  • the axial external thread 28 has a blocking device 29 which is designed to block the clamping nut from being unscrewed from the axial external thread 28.
  • a blocking device 29 which is designed to block the clamping nut from being unscrewed from the axial external thread 28.
  • the vehicle brake 1 automatically adjusts itself if the brake pads wear.
  • a force is applied from the brake actuator 4 via the push rod 6 to the adjusting lever 21, 21', which then presses either the tube nut 9 or the threaded spindle rod 8' against the other of the tube nut 9 via the second freewheel device 22, 22' and the threaded spindle rod 8' is rotated to increase the distance between the yoke 11, 11' and the actuator housing 12, 12' so that the brake pads approach each other.
  • the adjusting lever 21, 21' moves in the opposite direction through the brake actuator 4 via the push rod 6, although the tube nut 9 or the threaded spindle rod 8' are not rotated by the second freewheel device 22, 22'.
  • the steps are: loosening the locking element 23, 23 'and thereby releasing the locked non-positive torque transmission device 14, 14', and rotating the threaded spindle rod 8, 8' and the tube nut 9, 9' relative to each other, so that the total length I of the screw connection device 10 , 10 'and thus the distance between the yoke 11, 11' and the actuator housing 12, 12' is reduced.
  • the locking element 23 is released by loosening the clamping screw, and the threaded spindle rod 8 rotates relative to the tube nut 9 due to the non-self-locking screw connection device 10 by an operating force that brings the yoke 11 and the actuator housing 12 together urges, automatically.
  • the locking screws 25 are removed so that the clamping screw can rotate relative to the torque transmission element 13 in order to release the non-positive torque transmission device 14.
  • no non-self-locking screw connection device 10 is provided and the threaded rod spindle 8 is rotated using a tool.
  • the locking element 23 ' is loosened by loosening the clamping nut and the pipe nut 9' is tightened by further turning the clamping nut until it stops against the blocking device 29 of the axial external thread 28 on the torque transmission element 13' and continuing to rotate relative to the threaded spindle rod 8' is rotated. Before loosening the clamping nut, the locking plate 27 is removed.
  • the locking plate 27 is not removed, but the tube nut 9 'is rotated on the tube nut 9' using a hexagon , whereby the positive torque transmission device 15 'can be rotated due to the lack of operating force of the vehicle brake 1.

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

Abstract

Un module de réglage (5) comprend : un arbre principal (7, 7'), une tige de broche filetée (8, 8'), un écrou de tuyau (9, 9'), une culasse (11, 11'), un boîtier d'actionneur (12, 12'), un espacement de la culasse (11, 11') et du boîtier d'actionneur (12, 12') étant variable, un dispositif de transmission de couple non positif (14, 14') ayant une première et une seconde surface de frottement (16, 16', 17, 17'), et un élément de fixation libérable (23, 23') qui, dans un état, applique une force de fixation à la première et à la seconde surface de frottement et établit une liaison entre la culasse (11, 11') et l'écrou de tuyau ou la tige de broche filetée reliée à la seconde surface de frottement (17, 17') et, dans un état, permet une rotation de l'écrou de tuyau ou de la tige de broche filetée reliée à la seconde surface de frottement par rapport à l'autre de la tige de broche filetée ou de l'écrou de tuyau, afin de réduire l'espacement de la culasse et du boîtier d'actionneur.
PCT/EP2023/069363 2022-08-03 2023-07-12 Module de réglage pour un étrier de frein d'un frein de véhicule, frein de véhicule doté d'un module de réglage de ce type, et procédé de libération d'urgence du module de réglage WO2024028055A1 (fr)

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DE102022208094.7 2022-08-03
DE102022208094.7A DE102022208094A1 (de) 2022-08-03 2022-08-03 Nachstellermodul für eine Bremszange einer Fahrzeugbremse, Fahrzeugbremse mit einem solchen Nachstellermodul und Verfahren zum Notlösen des Nachstellermoduls

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816211C1 (de) * 1998-04-09 1999-07-29 Knorr Bremse Systeme Hydraulischer Bremszylinder
DE102011009538A1 (de) * 2010-02-02 2011-08-04 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH, 80809 Druckstangensteller für Kompakt-Bremszangen-einheiten mit sich direkt am Stellergehäuse abstützenden Verschraubungsteil
US10690206B2 (en) * 2015-09-25 2020-06-23 Kyb Corporation Brake device
EP3916261A1 (fr) * 2020-05-26 2021-12-01 Nabtesco Corporation Dispositif de freinage et mécanisme de réglage d'espace pour dispositif de freinage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10214671B4 (de) 2002-04-03 2006-08-24 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Bremszuspanneinrichtung mit elektrisch betätigter Verschleißnachstell- und Not- und Hilfslöseeinrichtung
CN102753853B (zh) 2010-02-02 2015-05-13 克诺尔-布里姆斯轨道车辆***有限公司 包括能挡靠到弹性止挡上的调节杆的用于紧凑型制动钳单元的压杆调节器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816211C1 (de) * 1998-04-09 1999-07-29 Knorr Bremse Systeme Hydraulischer Bremszylinder
DE102011009538A1 (de) * 2010-02-02 2011-08-04 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH, 80809 Druckstangensteller für Kompakt-Bremszangen-einheiten mit sich direkt am Stellergehäuse abstützenden Verschraubungsteil
US10690206B2 (en) * 2015-09-25 2020-06-23 Kyb Corporation Brake device
EP3916261A1 (fr) * 2020-05-26 2021-12-01 Nabtesco Corporation Dispositif de freinage et mécanisme de réglage d'espace pour dispositif de freinage

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