EP3818279A1 - Frein avec mécanisme à clavette et accumulateur d'énergie mécanique ainsi que leur procédé de fonctionnement - Google Patents

Frein avec mécanisme à clavette et accumulateur d'énergie mécanique ainsi que leur procédé de fonctionnement

Info

Publication number
EP3818279A1
EP3818279A1 EP19749575.7A EP19749575A EP3818279A1 EP 3818279 A1 EP3818279 A1 EP 3818279A1 EP 19749575 A EP19749575 A EP 19749575A EP 3818279 A1 EP3818279 A1 EP 3818279A1
Authority
EP
European Patent Office
Prior art keywords
brake
shape memory
braking
transmission
mechanical
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP19749575.7A
Other languages
German (de)
English (en)
Inventor
Alexander Müller
Norman Perner
Martin Reichle
Wolfgang TZSCHORN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chr Mayr GmbH and Co KG
Original Assignee
Chr Mayr GmbH and Co KG
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 Chr Mayr GmbH and Co KG filed Critical Chr Mayr GmbH and Co KG
Publication of EP3818279A1 publication Critical patent/EP3818279A1/fr
Withdrawn legal-status Critical Current

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
    • F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
    • F16D63/008—Brakes acting on a linearly moving member
    • 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
    • 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
    • F16D2121/18—Electric or magnetic
    • F16D2121/32—Electric or magnetic using shape memory or other thermo-mechanical elements
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/66—Wedges

Definitions

  • the present application relates to a brake with a wedge gear and mechanical energy store according to the preamble features of claim 1 and a method for its operation.
  • Brakes the clamping bodies of which are acted upon by the spring arrangement of a mechanical energy store via a wedge gear, are known and are used in particular for fixing linearly moving or rotating ones
  • the clamping bodies typically engage in profile grooves of the counterpart to be braked, reference being made, for example, to the design as a linear brake to DE 101 27664 C I, one along one
  • Guide rail moved, generic brake disclosed with a wedge gear, the wedge-shaped actuating piston driving the clamping body by a spring arrangement of a mechanical energy store when braking
  • the brake is released by a
  • Electromagnet which generates a force restoring the spring arrangement in overcurrent mode.
  • the one to be moved is at the beginning of the brake release
  • the drive spindle used for the brake ventilation movement can be moved back to a zero position.
  • Actuators for preloading a spring arrangement that is designed for high braking forces are typically large. Therefore, for alternative
  • Actuators proposed shape memory materials, which are characterized by a high force density and which perform an actuating movement
  • plastic deformation occurs in a low-temperature phase, for which a martensite structure is present ⁇ .
  • a martensite structure is present ⁇ .
  • the shape changes to the state before the plastic deformation.
  • a subsequent cooling for which again
  • Martensite structure does not return to the original deformation state with a one-way effect shape memory alloy without additional effort. However, it is possible to train the material through several matching plastic transformation and temperature change cycles so that a two-way effect occurs and an actuator component can be created that changes between two defined shape states depending on the temperature.
  • Examples of such Materials are NiMnGa with a high degree of deformation or
  • Shape memory polymers with a cinnamic acid group are Shape memory polymers with a cinnamic acid group.
  • Shape memory actuators for direct application of force to brake pistons
  • DE 1020050201 describes 26 Al shape memory plates for the
  • Toggle lever mechanism in a two-leg design, a wire-shaped shape memory element being fixed at the two outer joint ends and running over the central joint of the toggle lever. The when activating the
  • DE 102009041 907 A1 specifies heatable or coolable shape memory elements as a possible configuration for an actuator. Furthermore is out
  • Shape memory material when braking so that no closed-circuit brake is implemented.
  • This also applies to the linear brake disclosed by DE 1 0201 6005003 A1, which has an outside space that is outside the brake housing and thus additional space claiming Bowden cable actuator, which is driven by a shape memory wire.
  • a Bowden cable actuator allows the use of long wire lengths, so that due to the long travel range, a reduction gear with a constant transmission ratio is proposed for the direct application of force to a piston element acting on a clamping housing.
  • the shape memory wire in the Bowden cable must be continuously energized for permanent activation.
  • the possibility is mentioned of fixing the braking position with an additional locking element ⁇ . Not disclosed is a constructive design for releasing the latching and for an additional actuator, which is necessary to release the brake due to the Bowden cable arrangement which only generates tensile forces.
  • DE 10201 61 1 8772 A1 describes a brake with a mechanical one
  • the additional shape memory belt ⁇ must perform an actuating movement against the triggering direction, a wire-shaped shape memory controller not being used for this purpose.
  • the invention has for its object a brake with a
  • the wedge gear serves to drive at least one clamping body, which engages in a groove of a guide rail or on a rotating counterpart to be braked during braking.
  • a spring assembly that prestresses the spring arrangement is used to release the brake
  • a fixing device which controllably maintains the brake release position so that the actuator device can be deactivated.
  • the fixing device preferably operates according to the
  • a fixation device which is provided by a
  • Electric holding magnet is formed.
  • Another preferred embodiment is a spring force actuator secured by means of an electro-holding magnet.
  • the fixing device can be replaced by a part of the
  • Actuator device for releasing the brake are formed so that the
  • Fixing device comprises a shape memory actuator, which is switched off when the brake is released and is therefore deactivated.
  • the fixing device has a
  • the actuator device for releasing the brake comprises a mechanical transmission and a shape memory actuator, the transmission input side with the Shape memory plate is in constant drive connection. Accordingly, there is a permanent coupling of the transmission output side with the spring arrangement of the mechanical energy store, so that this is in constant drive connection to the shape memory actuator via the mechanical transmission.
  • the shape memory controller is designed so that, when activated, it moves the spring arrangement of the mechanical energy store into the brake release position via the mechanical transmission. This is under one
  • Shape memory plate in the activated state of the plate with one after one
  • Phase changes are triggered either thermally, magnetically or optically.
  • a phase change takes place from the non-activated state with a martensite structure to an activated state with an austenite structure by energization or the connection to an external one
  • a shape memory wire is advantageously used which has a higher spring hardness in the hot state than in the cold state, so that the activation generates tensile forces which act on the input side of the mechanical transmission when the brake is released.
  • the mechanical transmission is designed such that a non-linear transmission characteristic is present, the gradient of the translation of the mechanical transmission for the entire course of the transmission movement directed against the force of the spring arrangement increasing monotonically in the direction of the brake release position and the amount of the translation of the mechanical transmission in the
  • Brake release position is greater than one and corresponds to at least twice the ratio in the brake position.
  • the amount of the translation of the mechanical transmission in the brake release position is at least five times the translation in the brake position.
  • the definition remains even if the force flow in the mechanical transmission is reversed during braking, that is to say during a transmission movement from the brake release position to the braking position.
  • the fixing device can be arranged in such a way that it acts at least indirectly on the spring arrangement via the mechanical transmission and in one
  • the inventors have recognized that the non-linear stress expansion characteristic of the shape memory actuator in the activated state with an austenite phase with low elongation and a stress-induced mixing phase can be used particularly well for increasing elongation if the actuating forces to be applied to the mechanical transmission on the input side during the brake release during the course of movement up to
  • a shape memory adjuster in particular a shape memory wire, acts on a guide slide which is moved parallel to the direction of movement of the spring arrangement in the mechanical energy store.
  • a shape memory wire is used use ⁇ , which runs from a fixed logger on the brake housing via deflection rollers to a loose bearing on the mechanical transmission.
  • the inventors have recognized that it is advantageous to move the final approach phase to the fixing device when the brake is released, in the steepest section of the
  • an advantageous further development consists in using a sensor to detect the temperature and / or the resistance of the shape memory controller, so that a position determination can be derived from the stress expansion characteristic.
  • the gear ratio selected according to the invention means that the brake is first released with a high degree of activation of the shape memory actuator, which can be reduced in the course of the ventilation movement.
  • the initial section of the ventilation movement is operated at a high temperature, so that large initial actuating forces result. Due to the monotonically increasing gradient of the translation for a transmission movement from the braking position to the brake release position and due to the additional requirement that the amount of the translation of the mechanical transmission in the brake release position is greater than one and corresponds to at least twice the translation in the brake position, the degree of activation of the shape memory element in the final phase of
  • Ventilation movement can be lowered. Accordingly, the shape memory element is held at the final approximation just above the threshold of a phase transition back to the unactivated state, a reduced voltage in the activated shape memory element meaning that the reverse transformation temperature is also lower. As a result, braking can be triggered within a very short time after reaching the brake ventilation position, the inventive method
  • the arrangement ⁇ requires that the available brake
  • the spring force is sufficient not only to apply a braking force to the clamping body of the brake via the wedge gear, but there is an additional requirement due to the permanent coupling of the shape memory actuator to return it to the braking position.
  • Shape memory controller uses a wire-shaped element, this means that when braking, an elongation of the shape memory wire must be carried out. This presupposes that the shape memory controller is in the non-activated state. For a thermally activated shape memory material, a cooling phase must therefore be awaited after the brake is released, which is due to the
  • Gear characteristic selected according to the invention is shortened.
  • the actuator device for releasing the brake comprises a multiplicity of parallel-acting and individually controllable ones
  • the transmission characteristic according to the invention can be used to bring the final approach to the stop positions of the
  • Cooling phase is further shortened.
  • the mechanical gear is designed as a toggle lever gear.
  • the gradient of the gear ratio which increases monotonically according to the invention, is realized by a transmission kinematics, which leads to the
  • Brake release position is arranged within a range around a gear dead center position.
  • the area of a gear dead center position means a position of the toggle lever gear for which the amount of the translation is at least 5 or at least 10.
  • the force acting via the mechanical transmission can be used for faster brake release
  • Fixation device can be assigned.
  • the amount of the translation is considered, since after the gearbox dead center position has been passed, the direction of movement changes
  • Gearbox output reverses and the gear ratio takes a negative value.
  • a separate brake release arrangement is therefore provided, which is preferably designed as a further spring force element, the force introduction point and / or force direction on the toggle lever mechanism of which differs from that of the spring arrangement, which is in drive connection to the clamping body of the brake.
  • Brake release arrangement is used to move the toggle lever back over the gear dead center. Accordingly, it is preferred to limit the force effect of the separate brake release arrangement to a section of the transmission brake movement, which particularly preferably comprises only the area of the transmission dead center position.
  • the gear movement of the second variant which is carried out beyond the gear dead center position when the brake is released, requires a configuration of the
  • Fixing device for controllably holding the brake release position, which exerts a retaining force on the separate brake release arrangement.
  • An electric holding magnet is preferably used which, in the brake release position, acts either directly on the brake release arrangement or via at least part of the mechanical transmission, and preferably keeps it energized for the brake release position.
  • an electric lifting magnet is used to form the fixing device and the brake release arrangement of the second variant.
  • Fig. 2 shows a first embodiment of a brake according to the invention in the
  • FIG 3 shows the linear brake from FIG. 2 in the brake release position.
  • FIG. 4 shows the cross-sectional view B-B from FIG. 2.
  • Fig. 7 shows expansion stress characteristics of a thermally activated
  • Fig. 8 shows the transmission characteristic of the mechanical transmission for the in the
  • FIG. 9 represents ⁇ for the transmission according to FIG. 8 the course of movement and the forces acting on the transmission input side during a brake ventilation movement.
  • Fig. 1 0 shows a second embodiment of a brake according to the invention in the
  • Fig. 1 1 shows the second embodiment of Figure 10 in the brake release position.
  • Fig. 1 2 shows a third embodiment of a brake according to the invention in the
  • Fig. 1 3 shows the third embodiment of Figure 1 2 in the
  • Fig. 1 4 shows a fourth embodiment of a brake according to the invention in the
  • Fig. 1 5 shows the linear brake from Figure 1 4 in the brake release position.
  • Fig. 1 6 shows a fifth embodiment of a brake according to the invention in the
  • Fig. 1 7 shows the brake of Figure 1 6 in the brake release position.
  • Figure 1 shows a schematic simplification of a perspective view of a carriage 1 on a guide rail 2 with a double prismatic profile.
  • the carriage 1 has a brake housing 4, in which a shape memory adjuster 1 7 with individually controllable shape memory elements 1 8.1 - 1 8.5 is arranged.
  • the brake housing 4 comprises a housing middle part 5, which is one
  • FIGS. 2 and 3 show longitudinal sections AA for a first embodiment of the invention in a schematic simplification, an associated cross-sectional view BB through the center plane of the wedge gear 9 being shown in FIG. 4. A is shown
  • Push rod 34 is in direct drive connection to the actuating piston 1 0.1 of a wedge gear 9. It can be seen from FIG. 4 that actuating pistons 10.1-10.4 with inclined surfaces, to which roller bearings 11.1-1.1.4 are assigned, exert a force effect on the clamping bodies 3, 3.1 when braking.
  • FIG. 2 shows an actuator arrangement 14 with a mechanical transmission 1 6 and one
  • Shape memory plate 1 7 in the form of a shape memory wire 20.
  • Shape memory wire 20 forms several windings between a fixed bearing 32 on the housing middle part 5 and a loose bearing 33 within a guide carriage 21, which is in a sliding bearing 30 between the housing middle part 5 and the
  • Housing cover 6 moves.
  • the guide carriage 21 is in direct drive connection with the input side of the mechanical transmission 1 6 via the rigid member 35.3.
  • the shape memory wire 20 is cohesively connected to the fixed bearing 32 or the loose bearing 33 at the respective deflection sections by an adhesive connection, so that individually controllable ones
  • Shape memory elements 1 8.1, 1 8.2 arise.
  • the associated separate electrical contacts of the individually controllable shape memory elements 1 8.1, 1 8.2 are not shown in FIGS. 2 and 3.
  • Brake release position LS is a toggle lever gear with rigid links 35.1, 35.2 and 35.3.
  • the fixed bearing is formed by the pivot bearing 36.3 on the middle rigid member 35.2, on which there are also loose bearings with the pivot bearings 36.2 and 36.4.
  • the coupling on the transmission input side to the guide slide 21 takes place via the rotary bearing 36.5 designed as a floating bearing. Between the first rigid part 35.1 and the push rod 34 there is another loose bearing with the pivot bearing 36.1.
  • Shape memory plate 1 7 This parallel guidance results in a compact design that covers the entire longitudinal extent of the middle part 5 of the housing
  • Figure 2 shows the mechanical transmission 1 6 in the braking position BS.
  • the individually controllable shape memory elements 1 8.1, 1 8.2 are energized and activated by heating to the phase transition temperature. This results in an increased voltage of the individually controllable
  • the fixing device 15 is formed by an electromagnet. This preferably has a rear elastic support 29, which is designed in such a way that deflection in the brake ventilation direction is possible and a stop for
  • Shape memory controller 1 7 without additional actuation, the braking can be effected by triggering the electromagnet on the fixing device 1 5.
  • Figure 5 shows the martensite content in the structure of a thermally activated
  • Shape memory material when going through a temperature cycle.
  • a complete martensite structure is available for the cooled shape memory setter 1 7, whereby heating from an initial austenite temperature threshold As leads to a successive conversion of martensite into austenite, which occurs when the final one
  • Austenite temperature threshold Af has been completed. There is a hysteresis effect for the renewed cooling, an initial one lying below Af
  • Martensite temperature threshold Ms marks the beginning of the regression to martensite and the regression is completely completed at a final martensite temperature threshold Mf, which in turn lies below As.
  • the temperature thresholds Mf, Ms, As and Af are from the stress state of the
  • the shape memory controller 17 shows a significantly steeper stress-strain curve which, from a certain degree of elongation, has a kink to a pseudo-elastic behavior, which is due to a mixed phase of austenite and stress in the Structure formed martensite is marked.
  • the shape memory material has a pronounced hysteresis behavior in the pseudoelastic range.
  • the stress-strain curve for the austenite phase can be determined by a
  • Temperature setting can be adjusted.
  • the dashed curve is at a higher temperature compared to the solid curve for the austenite phase. Accordingly, when the brake is released by a
  • Gearboxes are exercised so that a gearbox movement is also possible for smaller ones
  • the area of a steeply falling expansion stress characteristic curve can be used in the austenite phase if the intermediate mechanical transmission 1 6 has the characteristics required according to the invention with a monotonically increasing gradient Gear ratio as long as the movement takes place against the force of the spring arrangement.
  • FIG. 8 shows the kinematics of the mechanical transmission 1 6 for the first embodiment according to FIGS. 2 and 3.
  • GE denotes the distance of the transmission input for a movement from the braking position BS into the ventilation position LS, against which the distance of the transmission output GA is plotted in FIG. 9 which flattens with increasing movement to the ventilation position LS ⁇ .
  • the transmission ratio I increases as shown in FIG. 8, which theoretically assumes an infinite value at gearbox dead center TP ⁇ .
  • the negative transmission characteristic for a movement beyond the gear dead center TP is not shown in detail.
  • the brake position BS and the brake release position LS are determined so that in the final approximation phase of the ventilation movement there is a high gear ratio I ⁇ as long as the spring arrangement 1 6 is being worked on, i.e. At gearbox output A there is a force directed against GA ⁇ .
  • an amount of the ratio I greater than one is required, which is at least twice and preferably five times the ratio I for the
  • Braking position BS corresponds.
  • the translation threshold with a doubling of the amount of the translation which characterizes the area which allows an approach without great opposing forces to the fixing device 15, is shown as a dash-dotted horizontal line in FIG.
  • the preferred quintuple translation threshold is in FIG. 8 dash-dotted lines.
  • the selected transmission characteristic enables the degree of activation initially set when the brake is applied to the
  • Shape memory plate 1 7 in the last section of the brake ventilation movement can be reduced. Accordingly, it is preferred to work for the final approach phase in a temperature range which is only slightly above that in FIG. 5
  • Shape memory plate 1 7 can be shortened.
  • Ventilation movement is referred to the dash-dotted curve in Figure 9, which represents the necessary force at the transmission input E to compress the spring assembly 1 3 at the transmission output A.
  • This force curve is available when the brake is released in order to lengthen the shape memory plate 1 7. The force necessary for this, provided that a cold, not activated
  • Shape memory plate 1 7 here ⁇ is shown by the dash-and-dot curve in Figure 9. It can be seen that the driving force available from the spring arrangement 1 3 when braking is also sufficiently large at the beginning of the actuating movement, the shape memory controller 1 7 preferably being designed such that with increasing elongation the pseudoplastic region of the martensite phase shown in FIG. 7 is achieved, so that a successively increasing proportion of force is available for the application of the clamping body 3 in the course of the braking movement.
  • the shape memory controller 1 comprises 7 individually controllable shape memory elements 1 8.1, 1 8.2, preference is given already in the phase of the final approach to the brake ventilation position LS due to the reduced
  • Shape memory elements 1 8.1, 1 8.2 deactivated.
  • the mean temperature of the shape memory plate 17 is thus reduced, so that the activated ones remain
  • Shape memory elements 1 8.1, 1 8.2 after reaching the brake release position LS can cool down more quickly, thus further reducing the time for which braking is not carried out again after ventilation.
  • FIGS. 10 and 11 represent the braking position BS and the ventilation position LS.
  • the components that correspond to the first exemplary embodiment are provided with the same reference numerals.
  • the fixation device is formed by the individually controllable shape memory element 1 8.1 of the shape memory actuator.
  • the shape memory element 1 8.1 is also switched current-free and yields to the
  • the compressed spring assembly 1 3 free. Due to the delayed brake release, the second embodiment is suitable as a parking brake.
  • FIGS. 1 2 and 1 3 represent the braking position BS and the ventilation position LS.
  • Embodiment led the gear movement when releasing the brake in a narrowly limited section beyond the gear dead center position TP by the spring forces are still so small that the activation of the shape memory actuator 1 7 can be carried out in accordance with the above embodiments.
  • the brake release position BS in the area of the gearbox dead center position TP, for which the toggle lever gear has a gear ratio of at least 5 and preferably at least 10.
  • the requirement of a monotonically increasing gradient of the translation applies only up to the transmission dead center TP, ie for the course of the ventilation movement, which is directed against the force of the spring arrangement 13.
  • the brake release arrangement 1 9 can be designed as a spring belt ⁇ . It is preferred to use the spatial scope
  • Brake release arrangement 1 9 to an area to limit the transmission dead center position TP.
  • This advantageously relates to a section in which an amount of translation of at least 5 and preferably at least 10 is present ⁇ .
  • FIGS. 2 and 3 with a brake release position BL in front of the gearbox dead center TP
  • Brake release accelerating auxiliary brake spring system with action on the toggle lever can be used to support the initiation of the braking phase.
  • FIGS. 14 and 15 illustrate a fourth embodiment according to the invention, which, like the third embodiment, is based on a gear movement when the brake is released, which in a narrowly limited section extends beyond the gear dead center position TP ⁇ .
  • the fixing device 1 5 acts in the form of an electromagnet on the brake release arrangement 1 9.
  • FIGS. 1 6 and 1 7 show a fifth embodiment according to the invention, the components which correspond to the previous exemplary embodiments being provided with the same reference symbols. Unlike the previous ones
  • Exemplary embodiments include the mechanical transmission 1 6 a toggle lever with a double leg arrangement which is formed by the rigid bodies 35.1 and 35.2, the rotary bearing 36.3 as a fixed bearing and the rotary bearings 36.1 and 36.2 as a loose bearing.
  • a shape memory adjuster 1 7 is a loose bearing 33 which is meandered around deflection rollers 22.1-22.5 and is arranged between a fixed bearing 32 on the housing side and a loose bearing 33 arranged in the region of the central joint on the first rigid member 35.1 stretched shape memory wire 20 used. This arrangement allows a sufficiently long shape memory wire 20 for a flat brake
  • a position sensor 24 for controlling the final approach to the brake release position BL is provided for the fifth exemplary embodiment.
  • the control electronics used for this is not shown in detail.
  • a sensor device 23 on the shape memory wire 20 can be used for a regulated or controlled approach movement, which performs a temperature and / or resistance measurement ⁇ in order to be able to determine the gear position from the wire elongation.

Landscapes

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

Abstract

L'invention concerne un frein, comprenant un boîtier de frein ; au moins un corps de serrage destiné à appliquer une force de freinage sur une pièce homologue à freiner, en déplacement linéaire ou en rotation ; un accumulateur d'énergie mécanique pourvu d'un arrangement de ressort qui, lors du freinage, applique une force à un piston d'actionnement d'un mécanisme à clavette qui se trouve au moins indirectement en liaison motrice avec le corps de serrage jusqu'à atteindre la position de freinage ; un dispositif actionneur destiné à desserrer le frein ; et un dispositif de blocage destiné au maintien commandable de la position de desserrage du frein. L'invention comprend un dispositif actionneur comprenant une transmission mécanique et un organe de réglage à mémoire de forme. Le dispositif de blocage dans la position de desserrage du frein agit au moins indirectement par le biais de la transmission mécanique sur l'arrangement de ressort ou sur un arrangement de desserrage de frein séparé dans la transmission mécanique ; et le côté entrée de transmission de la transmission mécanique se trouve en liaison motrice permanente avec l'organe de réglage à mémoire de forme et le côté sortie de transmission de la transmission mécanique avec l'arrangement de ressort. L'organe de réglage à mémoire de forme est conçu de telle sorte que dans l'état actif, celui-ci déplace l'arrangement de ressort dans la position de desserrage du frein à l'aide de la transmission mécanique ; et le gradient de démultiplication de la transmission mécanique augmente pendant la totalité de la progression du mouvement de transmission en direction de la position de desserrage du frein, orienté à l'opposé de la force de l'arrangement de ressort, la valeur de la démultiplication de la transmission mécanique dans la position de desserrage du frein étant supérieure à 1 et correspondant au moins au double de la démultiplication en position de freinage.
EP19749575.7A 2018-07-06 2019-07-03 Frein avec mécanisme à clavette et accumulateur d'énergie mécanique ainsi que leur procédé de fonctionnement Withdrawn EP3818279A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018116437.8A DE102018116437B4 (de) 2018-07-06 2018-07-06 Bremse mit Keilgetriebe und mechanischem Energiespeicher sowie Verfahren für deren Betrieb
PCT/DE2019/000172 WO2020007384A1 (fr) 2018-07-06 2019-07-03 Frein avec mécanisme à clavette et accumulateur d'énergie mécanique ainsi que leur procédé de fonctionnement

Publications (1)

Publication Number Publication Date
EP3818279A1 true EP3818279A1 (fr) 2021-05-12

Family

ID=67543969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19749575.7A Withdrawn EP3818279A1 (fr) 2018-07-06 2019-07-03 Frein avec mécanisme à clavette et accumulateur d'énergie mécanique ainsi que leur procédé de fonctionnement

Country Status (4)

Country Link
EP (1) EP3818279A1 (fr)
CN (1) CN112689717B (fr)
DE (1) DE102018116437B4 (fr)
WO (1) WO2020007384A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114278874B (zh) * 2021-12-27 2023-08-29 绍兴市标准化研究院 一种燃气泄漏检测装置及检测方法
DE102022208076A1 (de) * 2022-08-03 2024-02-08 Festool Gmbh Verfahren zum Betrieb eines Aktuators einer Notbremseinheit für ein motorisch angetriebenes Werkzeug, Ansteuerschaltung, Aktuatoreinheit und Notbremseinheit
US20240102518A1 (en) * 2022-09-28 2024-03-28 Blanking Systems Inc. Linear clutch and method of manufacturing

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10127664C1 (de) * 2001-06-07 2003-04-17 Kendrion Binder Magnete Gmbh Elektromagnetisch betätigbare Bremsvorrichtung
DE10252915B3 (de) * 2002-11-12 2004-04-08 Zimmer GmbH, Technische Werkstätten Reibgehemme mit Notbremsfunktion
DE102004060109B4 (de) * 2004-12-13 2006-09-28 Zimmer, Günther Reibgehemme mit Stellglied
DE102005020126A1 (de) * 2005-03-24 2006-10-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung für eine bidirektionale Auslenkung eines Mittels längs einer Führung
EP1767804B1 (fr) * 2005-09-27 2008-02-20 C.R.F. Societa Consortile per Azioni Frein à disque avec moyens d'amortissement à mémoire de forme
DE102005055759A1 (de) * 2005-11-21 2007-05-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zur Herstellung einer Reib- und/oder Formschlussverbindung zwischen zwei relativ zueinander rotierbar oder linearbeweglich angeordneten Komponenten
DE102007013421A1 (de) * 2007-03-20 2008-09-25 Siemens Ag Bremseinrichtung mit einem Keilmechanismus
DE102009041907B4 (de) * 2009-09-20 2015-01-22 Günther Zimmer Brems- und/oder Klemmvorrichtung mit formsteifem Zentralkörper
US8499913B2 (en) * 2011-05-20 2013-08-06 The Boeing Company Shape memory alloy actuator system and method
EP2597329A1 (fr) * 2011-11-23 2013-05-29 Siemens Aktiengesellschaft Système de freinage pour éolienne
DE102012025438A1 (de) * 2012-12-21 2014-06-26 Chr. Mayr Gmbh + Co. Kg Mittels Fremdenergie betätigte Linearbremse
DE102015001439B4 (de) * 2015-02-09 2016-09-15 Solvo GmbH Aktoranordnung mit Formgedächtnisstellern und Betriebsverfahren
DE102015010495A1 (de) * 2015-08-17 2017-02-23 Intorq Gmbh & Co. Kg Bremseinrichtung für eine im unbestätigten Zustand eingefallene Bremse und entsprechende Aktoreinrichtung zum Lüften der Bremse
DE202015105213U1 (de) * 2015-10-02 2017-01-09 Hema Maschinen- Und Apparateschutz Gmbh Klemmvorrichtung
DE102015122265A1 (de) * 2015-12-18 2017-06-22 Hanning Elektro-Werke Gmbh & Co. Kg Bremsvorrichtung und Antriebsanordnung
DE102016005003B4 (de) * 2016-04-25 2017-11-23 Forschungsgemeinschaft Werkzeuge Und Werkstoffe E.V. Bremsvorrichtung für linearachsengeführte Systeme

Also Published As

Publication number Publication date
CN112689717B (zh) 2022-10-14
WO2020007384A1 (fr) 2020-01-09
CN112689717A (zh) 2021-04-20
DE102018116437B4 (de) 2021-02-04
DE102018116437A1 (de) 2020-01-09

Similar Documents

Publication Publication Date Title
WO2020007384A1 (fr) Frein avec mécanisme à clavette et accumulateur d'énergie mécanique ainsi que leur procédé de fonctionnement
EP1421293B2 (fr) Dispositif de serrage d'un frein
EP1999394B1 (fr) Frein a broche et agencement de came
DE10154178A1 (de) Elektromechanische Bremse mit Selbstverstärkung und veränderlichem Keilwinkel
DE10319082B3 (de) Elektromechanische Bremse zum Abbremsen einer sich drehenden Komponente und Bremsanlage mit einer elektromechanischen Bremse
EP3077694A2 (fr) Module de frein à tambour entraînable par moteur électrique
DE102015001439B4 (de) Aktoranordnung mit Formgedächtnisstellern und Betriebsverfahren
DE102016005003B4 (de) Bremsvorrichtung für linearachsengeführte Systeme
DE102019116517A1 (de) Vorrichtung und Verfahren zur Erhaltung der Greifkraft
EP3737882B1 (fr) Entraînement de soupape présentant une fonction de déplacement rapide
DE102018107762B4 (de) Linearaktuator
DE102019117447B3 (de) Elektromechanische Bremsvorrichtung und Verfahren für deren Betrieb
EP0881134B1 (fr) Accumulateur d'energie
DE102018112028A1 (de) Vorrichtung zur Fixierung von Werkstücken, Bearbeitungsanlage und Betätigungsvorrichtung
DE102006006241A1 (de) Linearbewegungsaktuator
DE102016118772A1 (de) Klemmvorrichtung
DE102020120435A1 (de) Festsetzeinrichtung für ein Drehelement einer Handhabungseinheit und Handhabungseinheit
WO2009124810A1 (fr) Frein électromécanique à auto-serrage
DE10336667A1 (de) Bremseinrichtung
EP3569353A1 (fr) Dispositif de commande
DE102019009172A1 (de) Elektromechanische Bremsvorrichtung und Verfahren für deren Betrieb
WO2011038921A1 (fr) Procédé pour déplacer une unité de façonnage d'une machine
DE102016008526B3 (de) Aktoranordnung mit Formgedächtnisstellern und Betriebsverfahren
DE102018104498A1 (de) Zugmittelspannsystem mit Schussmechanismus
DE202016008369U1 (de) Automationskomponente mit stromloser Bremse

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210125

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20211108

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20220319