EP3395747A1 - Procédé et dispositif de réglage ou de commande de la puissance de freinage d'un frein agissant sur l'entraînement - Google Patents

Procédé et dispositif de réglage ou de commande de la puissance de freinage d'un frein agissant sur l'entraînement Download PDF

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Publication number
EP3395747A1
EP3395747A1 EP18450002.3A EP18450002A EP3395747A1 EP 3395747 A1 EP3395747 A1 EP 3395747A1 EP 18450002 A EP18450002 A EP 18450002A EP 3395747 A1 EP3395747 A1 EP 3395747A1
Authority
EP
European Patent Office
Prior art keywords
force
braking
acting
drive
brake
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Withdrawn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
EP18450002.3A
Other languages
German (de)
English (en)
Inventor
Martin Rossmann
Hans Friedrich Mäder
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.)
Waagner-Biro Austria Stage Systems AG
Original Assignee
Waagner-Biro Austria Stage Systems 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 Waagner-Biro Austria Stage Systems AG filed Critical Waagner-Biro Austria Stage Systems AG
Publication of EP3395747A1 publication Critical patent/EP3395747A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/18—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes for generating braking forces which are proportional to the loads suspended; Load-actuated brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/24—Operating devices
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
    • A63J1/00—Stage arrangements
    • A63J1/02—Scenery; Curtains; Other decorations; Means for moving same
    • A63J1/028—Means for moving hanging scenery

Definitions

  • the present invention relates to a method for controlling the braking force of a brake acting on a drive, in particular acting on a motor-driven cable pull safety brake, wherein a brake element of the brake is opened by a biasing force against a permanently acting braking force and for a braking operation, the urging force is canceled against the permanently acting braking force on the brake element to provide a braking torque acting on the drive.
  • the present invention relates to a device for controlling or controlling the braking force of a brake acting on a drive, in particular a safety brake acting on a cable driven by a motor, comprising a brake element, a braking force acting on the brake element, a permanently acting brake force to provide a force acting on the drive braking torque generating biasing member and acting against the permanently acting braking force, an application force providing opening element, and to a use of such a method and such a device.
  • safety brakes In the event of faults, such as failure of the controls or the supply voltage, so-called safety brakes avoid the crash of the loads. They are usually carried out redundant for each drive. Safety brakes close by passive spring force and are either opened electromagnetically or hydraulically or ventilated, while only the energy stored in the springs is used for braking. This distinguishes such safety brakes from standard brakes, e.g. in vehicles. In the event of a fault, each of the two safety brakes on the drive must bring the maximum possible load down from maximum speed downwards within a predetermined stopping distance. The braking effect of each individual brake is checked before commissioning a new system.
  • the attached decorations and their connections, as well as the load-bearing rope pulleys in the steel structure, but also the building, must be designed.
  • the existing support structures can in many cases the high braking loads due to the desired higher loads and speeds of the various drives no longer withstand.
  • a method of the type mentioned is essentially characterized in that the voltage applied to the drive load is measured and that depending on the measured load during the braking process acting on the drive braking torque of the braking element reducing the application force against the permanent acting braking force is applied, which is less than the force exerted to fully open the braking element applying force.
  • the voltage applied to the drive load or load is measured and depending on the measured load, a maximum braking force of the braking element derating imposition force is exercised, it becomes possible, occurring during use of such a brake, in particular safety brake, brake loads or to reduce moments or delay peaks accordingly.
  • the applied load on the element driven by the drive is detected by a load-measuring bolt on the drive and / or by using a cable pull by a sensor.
  • the respective load or load applied to the drive can be determined in a simple and reliable manner, which subsequently can be limited or limited by the maximum load to be achieved in the case of using the safety brake by reducing or limiting the maximum occurring Braking delay is used.
  • the permanently acting braking force is applied to the brake element in a manner known per se by at least one spring.
  • the biasing force against the permanently acting braking force to reduce the braking force of the braking element is applied electrically or hydraulically by a separate device for the opening of the brake element, as corresponds to a further preferred embodiment of the method according to the invention.
  • the size of the braking torque decreasing biasing force is controlled or controlled inversely proportional to the determined load or load on the drive.
  • a device according to the invention of the type mentioned above is essentially characterized by an additional device for measuring the voltage applied to the drive load and a control or regulating device for control or control during the braking of one on the Drive acting braking torque derating the loading force of the braking element by an acting against the permanently acting braking force opening element, wherein the force exerted to reduce the braking torque during braking application force is less than the force exerted to fully open the braking element biasing force.
  • the additional device provided according to the invention for measuring or generally determining the load or load applied to the drive, as well as the provision of a regulating or control device for controlling or control of the braking torque which can be achieved during the braking process, a corresponding reduction of possibly occurring braking deceleration peaks or torques, which are to be limited to a predetermined maximum extent to avoid damage to, for example, building structures.
  • the device provided for measuring the load applied to the drive comprises a load-measuring bolt cooperating with the element driven by the drive and / or using a cable pull Sensor is formed for example in the range of a deflection roller of the cable. It is thus possible to reliably determine the load or load applied to the drive by simply providing additional and reliable measurement results.
  • the additional device for measuring the load applied to the drive and / or the control device for controlling or controlling the braking torque acting on the drive and / or the against the permanently acting braking force acting on opening element with a separate from the drive and the brake supply device, In particular, an uninterruptible power supply are coupled.
  • such safety brakes are usually designed as passively acting brakes, wherein in this context it is preferably proposed according to the invention that the permanently acting braking force on the brake element generating or exerting Beaufschlagungselement is formed in a conventional manner of at least one spring.
  • the loading force against the permanently acting braking force providing opening element is formed to fully open the brake element in a conventional manner by an electrically or hydraulically operated device.
  • the opening element providing the application force against the permanently acting braking force be used to reduce the during the braking process the braking torque acting on the drive is formed by an electrically or hydraulically operated device different from the device for opening the brake element.
  • Fig. 1 is schematically generally designated 1 a stage technology, wherein a generally designated 2 load, such as a platform or stage decoration via a cable 3 via a driven winch 4 is raised and lowered according to the double arrow 5.
  • a generally designated 2 load such as a platform or stage decoration via a cable 3 via a driven winch 4 is raised and lowered according to the double arrow 5.
  • the load 2 may in this case have a comparatively large weight and / or comparatively large dimensions.
  • the winch 4 of the guided over schematically indicated with 6 pulleys 3 is driven by a schematically indicated motor 7, wherein the motor 7 is coupled via a gear 8 with the winch 4.
  • a schematically indicated safety brake 9 which in an emergency, as will be discussed in detail below, must provide a safe braking of the load 2, which may be of great weight.
  • a safety brake 9 can be made redundant, but this is not shown in detail for the sake of simplicity.
  • a load measuring pin 13 indicated which is coupled via a data line 14 with a control or control device 15, which is fed through the load measuring bolt 13 detected load or load.
  • a further device for measuring or determining the load or load can also be provided in the area of the cable pull 3 and in particular a deflection roller 6, as is schematically indicated by a sensor 16, which is similar to the load measuring bolt 13 is coupled by a line 17 to the control or control device 15.
  • a safety brake 9 is usually used in emergencies, for example in case of failure of a power supply of the entire stage equipment 1 in particular to avoid a crash of the load 2 is used, is also in Fig. 1 schematically indicated at 19 a separate or additional power supply, in particular an uninterruptible power supply.
  • This additional or separate power supply 19 is coupled via a line 20 to the safety brake 9 and via schematically indicated lines 21 with further auxiliary devices, such as in particular the devices 13 and 16.
  • Fig. 2 is schematically illustrated the operating principle of the safety brake 9.
  • the safety brake 9 has a brake element 22, which cooperates according to a double arrow 23 relative to a coupled to the drive or motor 7 not shown and braked by the braking element 22 element 24.
  • a spring 25 indicated which exerts a force acting on the brake element 22 force F2.
  • a force F1 is provided by an electrically or hydraulically actuated device, indicated schematically at 26.
  • the maximum force F2 to be provided by the at least one spring 25 and acting on the brake element 22 becomes the force F3 between the brake element 22 which is reduced on the basis of the detected load or load and the coupled to the drive element 24 effectively, so that a total compared to the use of the full braking force F2 reduced braking deceleration or braking stress to the in Fig. 1 shown elements of the stage technology 1 occurs.
  • step S1 a determination of the in Fig. 1 represented stage technology 1 occurring load or load, as determined at the measuring devices 13 and 16 and determined by the control or control device 15.
  • a step S2 takes place in the control or control device 15, a determination of the supplied in an emergency of the safety brake 9 Beauftschungskraft F3 for reducing the permanently provided by at least one spring 25 maximum braking force or acting on the brake element 22 Beaufschlagungskraft F2.
  • the application force F3 to be determined can be determined in a simple manner by interpolation.
  • the loading force F3 to be determined or the corresponding counter-pressure to achieve the desired braking torque is inversely proportional to the loads or loads exerted by the stage devices 2 and determined by the regulating or control device 15.
  • this can be determined by the control device 15 to be determined and supplied in an emergency of the safety brake 9 Beauftschungskraft F3, for example, based on a pre-stored load-braking force curve.
  • the in Fig. 2 illustrated safety brake 9 via the electric or hydraulically operated device 26 is supplied with the application force F1, which counteracts the by the at least one spring 25 permanently acting braking force F2 and exceeds this braking force F2 for a complete opening of the brake.
  • step S4 the apply force F1 provided by the electrically or hydraulically operated device 26 drops, so that the maximum braking force F2 permanently provided by the at least one spring 25 becomes effective on the brake element 22.
  • the safety brake F3 in the parallel step S5 of the safety brake is actuated by the separate electrically or hydraulically actuated Device 27 is supplied, this force F3 counteracts the force F2 and thus prevents the maximum and by the force F2 permanently acting braking force is transmitted by the brake member 22 to the drive coupled to the element 24.
  • a brake in particular a safety brake 9, with an adjustable or controllable braking torque which, by providing a load-dependent braking torque, enables an adjustable deceleration or deceleration acceleration of optionally heavy loads 2.
  • a dynamic control of a braking torque is made possible by a control technology coupling a load 2 with the safety brake 9.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
EP18450002.3A 2017-04-26 2018-04-24 Procédé et dispositif de réglage ou de commande de la puissance de freinage d'un frein agissant sur l'entraînement Withdrawn EP3395747A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATGM90/2017U AT15876U1 (de) 2017-04-26 2017-04-26 Verfahren und Vorrichtung zur Regelung bzw. Steuerung der Bremskraft einer auf einen Antrieb wirkenden Bremse

Publications (1)

Publication Number Publication Date
EP3395747A1 true EP3395747A1 (fr) 2018-10-31

Family

ID=62116808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18450002.3A Withdrawn EP3395747A1 (fr) 2017-04-26 2018-04-24 Procédé et dispositif de réglage ou de commande de la puissance de freinage d'un frein agissant sur l'entraînement

Country Status (2)

Country Link
EP (1) EP3395747A1 (fr)
AT (1) AT15876U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023247518A1 (fr) * 2022-06-23 2023-12-28 Ringspann Gmbh Système de freinage et procédé de freinage avec une force de freinage variable

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113536469B (zh) * 2021-08-03 2023-10-10 中国航空工业集团公司沈阳飞机设计研究所 一种驱动装置的输出力矩计算方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153465A (en) * 1984-01-11 1985-08-21 Hitachi Ltd Emergency stop control apparatus for elevator
US5244060A (en) * 1991-05-09 1993-09-14 Hitachi, Ltd. Elevator apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153465A (en) * 1984-01-11 1985-08-21 Hitachi Ltd Emergency stop control apparatus for elevator
US5244060A (en) * 1991-05-09 1993-09-14 Hitachi, Ltd. Elevator apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023247518A1 (fr) * 2022-06-23 2023-12-28 Ringspann Gmbh Système de freinage et procédé de freinage avec une force de freinage variable

Also Published As

Publication number Publication date
AT15876U1 (de) 2018-07-15

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