EP2978702B1 - Bremsvorrichtung für eine aufzugsanlage - Google Patents

Bremsvorrichtung für eine aufzugsanlage Download PDF

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Publication number
EP2978702B1
EP2978702B1 EP13776429.6A EP13776429A EP2978702B1 EP 2978702 B1 EP2978702 B1 EP 2978702B1 EP 13776429 A EP13776429 A EP 13776429A EP 2978702 B1 EP2978702 B1 EP 2978702B1
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EP
European Patent Office
Prior art keywords
braking apparatus
brake
brake lining
toggle lever
linear drive
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.)
Active
Application number
EP13776429.6A
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German (de)
English (en)
French (fr)
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EP2978702A1 (de
Inventor
Rade SAVIC
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.)
Inventio AG
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Inventio AG
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Publication date
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Priority to PL13776429T priority Critical patent/PL2978702T3/pl
Publication of EP2978702A1 publication Critical patent/EP2978702A1/de
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Publication of EP2978702B1 publication Critical patent/EP2978702B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

Definitions

  • the invention relates to a braking device for an elevator system according to the preamble of claim 1.
  • a braking device is for example from the US Pat. No. 1,206,350 A or from the CN 101907140 A known.
  • the disclosed brake device comprises an electromagnetic actuator to bring the caliper brake or the brake pad, as required, with the guide rail in contact or to be released from this.
  • Such brake devices have the disadvantages that they are relatively large and heavy, and therefore are only suitable for mounting on relatively large passenger cabins.
  • known braking devices are relatively expensive.
  • problems arise when holding and releasing the brake device when the brake pads are partially worn, and / or when the brake pads are arranged asymmetrically with respect to the guide rail.
  • the object of the invention is to form an economically advantageous braking device for an elevator installation.
  • Claim 20 relates to the use of such a braking device for a passenger cabin of a lift installation.
  • the braking device comprises: a brake caliper with two pivotally mounted legs, wherein the one end of each leg is connected to a brake pad carrier, and wherein opposite end of each leg is pivotally connected to a toggle lever, wherein the toggle lever comprises a first lever and a second lever, which is articulated to each other via a toggle joint, wherein the first and second levers are pivotally connected to one of the legs, wherein a linear drive between the two legs and extending along the two legs, and wherein the linear drive is connected via a connecting part with the toggle joint to actuate the brake caliper, wherein the connecting part comprises a prestressed spring,
  • the braking device comprises a guide device which limits the range of motion of the toggle joint.
  • the linear drive As a linear drive all drive systems are suitable, which lead to a translational movement to produce a movement in a straight line.
  • the linear drive is designed as a Hubspindelmotor.
  • the inventive braking device has the advantage that it can be made very small and compact.
  • the brake device can therefore also be used for small passenger cabins of a lift installation.
  • the braking device is inexpensive to produce.
  • the braking device is also designed such that no hard impacts occur, as may occur, for example, when using an electromagnet as a drive device.
  • the braking device according to the invention is very quiet during operation, in particular when a lifting spindle motor is used.
  • the inventive braking device requires no energy during standstill in an advantageous linear drive such as a Hubspindelmotor.
  • the braking device is designed on the basis of the linear drive, in particular a Hubspindelmotors, and by the use of a preloaded spring such that during operation of the braking device no hard impacts occur, as is the case for example with electromagnets.
  • the braking device therefore has a very long service life, that is, the braking device can be operated reliably and without or with little maintenance for a long time.
  • the braking device is also very simple, so that maintenance can be performed quickly and inexpensively.
  • the brake pads of the braking device can be replaced very quickly to the To keep a period of maintenance short.
  • the braking device has a connecting means, in particular a dovetail joint to replace brake pads particularly fast and comfortable.
  • the braking device according to the invention will be described below with reference to several exemplary embodiments.
  • Fig. 1 shows a brake device 1 for an elevator system with a vertical elevator, for generating a frictional engagement on a guide rail 2 of the elevator system.
  • the guide rail 2 thus extends in the vertical direction 2b.
  • the housing 1a is shown in section, so that the arrangement therein is clearly visible.
  • the brake device 1 comprises a brake caliper 3 with two legs 3e pivotally mounted on hinge pins 5, one end of each leg 3e being pivotally connected to a brake pad support 3b, and the opposite end of each leg 3e being pivotally connected to a toggle 6.
  • the brake pad carrier 3b are pivotally connected to the legs 3e via brake pad carrier bolts 3c.
  • the brake lining carrier bolts 3c can be loosened and re-attached with respect to the leg 3e in a simple manner, thereby exchanging the brake lining carrier 3b with brake pad 4.
  • a brake pad 4 is arranged on each brake pad carrier 3b.
  • the toggle lever 6 comprises a first lever 6a and a second lever 6b and a toggle joint 6c, wherein the two levers 6a, 6b are articulated to each other via the toggle joint 6c, which has a rotation axis 6d.
  • the First and second levers 6a, 6b are articulated via one joint 3f each with one of the legs 3e.
  • a designed as Hubspindelmotor linear drive 7 with longitudinal axis L is arranged between the two legs 3e and along a partial length of the two legs extending 3e, the Hubspindelmotor 7 is connected via a connecting part 8 with a joint head 6e of the toggle lever 6 to actuate the brake caliper 3 ,
  • the condyle 6e is fixedly connected to the rotation axis 6d.
  • the Hubspindelmotor 7 comprises a drive 7d, which drives a spindle 7a.
  • a nut 7c is rotatably connected to the spindle 7a, so that the nut 7c is moved in the traveling direction of the spindle 7a upon rotation of the spindle 7a.
  • the Hubspindelmotor 7 also includes a housing 7b, within which the spindle 7a and the threaded nut 7c is arranged.
  • the housing 7b is partially shown in section.
  • the Hubspindelmotor 7 may be rigidly connected to the housing 1a.
  • the threaded nut 7 c is fixedly connected to the connecting part 8.
  • the connecting part 8 comprises a prestressed spring 10. This spring 10 and the arrangement surrounding it is in the section marked A in FIG FIG. 1a shown in detail.
  • the connecting means 8 is configured as a hollow tube 8a.
  • a threaded rod guide 8f fixedly connected to the hollow tube 8a, through which a threaded rod 6f with threaded nut 8c extends.
  • the spring 10 is arranged between the threaded nut 8c and the threaded rod guide 8f.
  • the threaded rod 6f is fixedly connected to the joint head 6e of the toggle lever 6.
  • the bias of the spring 10 can be adjusted by turning the nut 8c by either tightening the nut 8c so that it fits in the nut FIG.
  • the connecting part 8 is thus configured such that the connecting part 8 under train, which is called in the illustrated embodiment with a movement of the connecting part 8 to the left, extended when exceeding the biasing force Vk, because in this case the spring 10 is compressed.
  • the Hubspindelmotor 7 is pivotally mounted about a pivot axis 7f, wherein the pivot axis 7f and the rotation axis 6d of the toggle joint 6c parallel or substantially parallel, that is, in the illustrated view perpendicular to the viewing plane.
  • the brake device 1 has no guide device 9.
  • the braking device 1 a guide device 9, wherein the guide device 9 is configured such that it limits the range of motion of the toggle joint 6c.
  • the connecting means 8 on the outer surface of a first and a second recess 8d, 8e, which are mutually spaced in the axial direction.
  • the Hubspindelmotor 7 comprises a limit switch 11 which generates a switching signal as soon as the first or second recess 8d, 8e in the range of the sensor of the limit switch 11th located. This limit switch 11 thus limits the maximum traversable with the connecting means 8 and with the Hubspindelmotor 7 way.
  • FIGS. 1 to 3 show the same brake device 1 in different operating conditions to represent the actuation of the Hubspindelmotors 7 or the displacement of the connecting means 8.
  • the guide rail 2 of the elevator system is arranged symmetrically with respect to the longitudinal axis L, so that the brake caliper 3, the knee lever 6 and the brake pads 4 are preferably moved symmetrically with respect to the longitudinal axis L.
  • FIG. 1 shows the brake device 1 in the idle state with open brake shoes.
  • the Hubspindelmotor 7 advantageously requires no electrical energy.
  • FIG. 3 shows the brake device 1 in the idle state with closed brake shoes. The brake pads 4 rest against the guide rail 2.
  • the Hubspindelmotor 7 advantageously also requires no electrical energy.
  • the Hubspindelmotor 7 was activated to the connecting means 8 in the in the FIGS. 3 and 3a to shift position shown, with the FIG. 3a the in FIG. 3 with C designated detail shows in detail.
  • the Hubspindelmotor 7 is automatically switched off as soon as the sensor of the limit switch 11 detects the second recess 8 e.
  • the connecting means 8 was in in FIG.
  • FIG. 3a example shown so far moved to the left that the spring 10 is maximally compressed and still has a spring length 10b.
  • the spring length has in the precompressed state, as in FIG. 1a shown, a spring length 10c, so that the spring 10, during the transition from the in FIG. 1 shown state to the in FIG. 3 illustrated state shortened by a spring travel 10a.
  • FIG. 2a shows the in FIG. 2 detail marked B in detail.
  • the Hubspindelmotor 7 is actuated so that the connecting means 8 moves continuously in the illustrated view to the left.
  • FIG. 2 shows the state in which the brake shoes or the brake pads 4 rest against the guide rail 2 for the first time.
  • the spring 10 is not further compressed and still has the spring length 10c in the pre-compressed state, the same as in FIG. 1a , Since the limit switch 11 is not yet triggered a signal, the Hubspindelmotor 7 continues to rotate, and stops only when in the FIGS. 3 and 3a shown location.
  • the in the FIGS. 1 to 3 Braking device 1 shown has the advantage that the placement of the brake shoes or the brake pads 4 on the guide rail 2 no impact on the drive, the Hubspindelmotor 7 generated since after mounting the brake shoes on the guide rail 2 of the Hubspindelmotor can continue to rotate continuously, and as As a result, the spring 10 is compressed.
  • This "gentle" placement of the brake shoes has the consequence that in particular the Hubspindelmotor 7, but also the other components of the brake device 1, low impact forces or momentum forces are exposed, with the result that the inventive braking device 1 has a long service life has, or can be operated maintenance-free during a large number of holding and releasing cycles.
  • the inventive braking device can therefore be operated extremely reliable and low maintenance for long periods. In addition, no banging noises occur, which is perceived by passengers who are in the passenger cabin, is very pleasant.
  • the spring 10 has the further advantage that a certain wear of the brake pad 4 is tolerable without affecting the braking function of the brake device 1. This will be explained in the following example.
  • the brake pad 4 is worn to a maximum tolerable. This would be in the in FIG. 3 shown end position mean that the Hubspindelmotor 7 and the connecting means 8 in the in FIG. 3 are shown, and that the brake pad 4 rests against the guide rail 2, wherein the brake pad 4, in contrast to the in FIG. 3 arrangement shown, would be thinner, so that in FIG. 3 the toggle joint 6c or the rotation axis 6d would be shifted slightly to the left. This would have in FIG.
  • the threaded nut 8c would accordingly be displaced to the left, and the spring 10 would have a spring length in the range between 10b and 10c.
  • the spring 10 had a spring length of a little less than 10c. This would mean that a tensile force of at least the biasing force Vk is applied to the threaded rod 6f, so that the force exerted by the brake pad 4 on the guide rail 2 is still high enough to ensure a secure hold.
  • the arrangement of the spring 10 in the connecting means 8 thus has the further advantage that this allows a compensation of the wear during operation of the brake device 1 brake pad 4. This makes it possible to ensure safe operation of the brake device 1, even with wearing brake pads, and makes it possible to wait longer until a service of the brake device 1 is required.
  • the inventive braking device 1 can thus be operated more cheaply.
  • FIGS. 4 . 5 and 6 show a further embodiment of a braking device 1, which in contrast to the in the FIGS. 1 to 3 Brake device 1 shown additionally leg guides 12, the task is, such as, for example FIG. 6 can be seen to prevent movement of the legs 3e in the direction of movement E as possible.
  • the in the FIGS. 4 . 5 and 6 illustrated brake device 1 identical to that in the FIGS. 1 to 3 illustrated braking device 1 configured.
  • the guide rail 2 eccentrically with respect to the brake caliper 3 and the Hubspindelmotor 7 arranged.
  • FIG. 4 shows the brake device 1 with open brake shoes, so that the brake pads 4, the guide rail 2 do not touch.
  • FIG. 4 shows the brake device 1 with open brake shoes, so that the brake pads 4, the guide rail 2 do not touch.
  • FIG. 4 shows a part of in FIG. 4 arrangement shown in perspective.
  • the Hubspindelmotor 7 is maximally extended, so that the toggle joint 6c is in a defined end position EL, in which it is ensured that the brake pads 4 do not rest against the guide rail 2.
  • the braking device 1 comprises a guide device 9 to a position in the defined To ensure final position EL.
  • FIG. 4a shows that in FIG. 4 illustrated embodiment of a guide device 9 in detail.
  • On the inside of the housing 1a a recess is embedded, wherein the edge of this recess forms a guide track 9b, and wherein the thus defined bottom forms a guide portion 9c.
  • the guideway 9b is designed to extend in such a way that a defined end position EL is formed.
  • a guide means 9a is arranged on both sides, wherein this guide means 9a comes to lie in composite brake device 1 within the guide track 9b, so that, as from FIG. 4a it can be seen that the range of motion of the toggle joint 6c is limited by the guide area 9c or by the guide track 9b.
  • the toggle joint 6c or the guide means 9a can thus move maximally within this guide region 9c.
  • FIG. 5 shows the brake device 1 with closed brake shoes, so that the brake pads 4 rest against the guide rail 2.
  • the Hubspindelmotor 7 has rotated during the collapse about the pivot axis 7f, so that it occupies the illustrated, oblique position in the end position.
  • a subsequent opening of the brake device 1 has the consequence that the Hubspindelmotor 7 is moved apart, wherein the guide means 9a is guided by the guide track 9b, that the guide means 9a at the end position of the Hubspindelmotors 7 is in the end position EL, so that the Hubspindelmotor has swung back into the in FIG. 4 shown location. This in the FIGS.
  • the guide device 9 can be configured in different ways in order to effect a guidance of the rotation axis 6d within the housing 1a of the brake device 1.
  • the linear drive 7 is designed as a spindle drive.
  • the linear drive 7 can be configured in many different ways, for example, as a hydraulic cylinder, as a pneumatic cylinder or, for example, as a section linearly extending toothed belt, which is moved for example by a motor-driven gear.
  • FIG. 7 shows a detailed view of another embodiment of a brake device 1 with housing 1a and housing wall 1c.
  • the braking surface of the brake pad 4 extends parallel to the surface 2a of the guide rail 2.
  • the in FIG. 7 illustrated embodiment also has a rigid alignment member 13 which has two invisible, perpendicular to the viewing plane extending ends, which are rotatably mounted in the two bores 13a, 13b on the one hand in the brake pad support 3b and on the other hand in the housing 1a.
  • the bores 13a, 13b, the brake pad carrier pin 3c and the hinge pin 5 are arranged such that their centers of rotation form a parallelogram.
  • This arrangement has the advantage that the braking surface of the brake pad 4 constantly aligns automatically parallel to the surface 2a, regardless of the pivotal position of the leg 3e.
  • This embodiment has the advantage that the brake pad 4 never comes to rest on the guide rail 2 in a tilted or oblique position relative to the surface 2a. This reduces the wear of the brake lining 4, so that the braking device 1 can be operated maintenance-free for a longer period of time.
  • FIG. 8 shows a detailed view of a brake pad carrier 3b with attached brake pad 4, wherein the brake pad 4 is fixedly connected to a brake pad holder 4a, wherein the brake pad holder 4a and the brake pad support 3b have a fastening means 4b to connect the brake pad holder 4a firmly and detachably connected to the brake pad support 3b ,
  • the brake pad holder (4a) and the brake pad carrier (3b) are configured so adapted to each other that these together form a dovetail connection to the brake pad holder (4a) via the dovetail connection releasably connect to the brake pad carrier (3b).
  • the brake pad holder 4a can be pushed onto the brake pad carrier 3b in a direction perpendicular to the plane of representation and connected to it in this way.
  • the fastening means 4b is perpendicular to the direction 2b of the guide rail 2.
  • the fastening means 4b allows the brake pad holder 4a and thus the brake 4 exchange quickly and to ensure excellent connection with the brake pad support 3b. Thus, only a small amount of time is required for the maintenance of the brake device 1 or for the replacement of the brake 4.
  • the attachment means 4b may be configured in a variety of ways to releasably and reliably connect the brake 4 to the brake pad support 3b.
  • the brake device 1 has been described above in connection with an elevator device.
  • the braking device 1 is preferably suitable for an elevator device, wherein the braking device 1 could also be used in other fields of application, for example for braking a rotating disc.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP13776429.6A 2013-03-28 2013-09-19 Bremsvorrichtung für eine aufzugsanlage Active EP2978702B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13776429T PL2978702T3 (pl) 2013-03-28 2013-09-19 Urządzenie hamulcowe dla urządzenia dźwigowego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00688/13A CH707833A1 (de) 2013-03-28 2013-03-28 Aufzugsanlage mit einer Bremsvorrichtung.
PCT/EP2013/069522 WO2014154306A1 (de) 2013-03-28 2013-09-19 Bremsvorrichtung für eine aufzugsanlage

Publications (2)

Publication Number Publication Date
EP2978702A1 EP2978702A1 (de) 2016-02-03
EP2978702B1 true EP2978702B1 (de) 2017-11-29

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EP13776429.6A Active EP2978702B1 (de) 2013-03-28 2013-09-19 Bremsvorrichtung für eine aufzugsanlage

Country Status (8)

Country Link
EP (1) EP2978702B1 (tr)
CN (1) CN105358462B (tr)
CH (1) CH707833A1 (tr)
ES (1) ES2654673T3 (tr)
HK (1) HK1216170A1 (tr)
PL (1) PL2978702T3 (tr)
TR (1) TR201802372T4 (tr)
WO (1) WO2014154306A1 (tr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015104095U1 (de) 2015-08-05 2016-11-09 Wittur Holding Gmbh Aufzug mit Bremseinrichtung nach Art einer Zangenbremse
CN110088027B (zh) * 2016-12-16 2021-03-05 因温特奥股份公司 驻停制动器
WO2018130520A1 (de) 2017-01-10 2018-07-19 Inventio Ag Parkbremsen entriegelung
ES2682530B1 (es) * 2017-03-20 2019-06-27 Vila Francisco Javier Porras Freno de ascensor, con tren de palancas
DE102017209888A1 (de) * 2017-06-12 2018-12-13 Thyssenkrupp Ag Bremse für eine Aufzugsanlage
CN111741915B (zh) * 2018-03-28 2022-02-22 因温特奥股份公司 用于电梯设备的、特别是用作驻停和安全制动器的卡钳制动器
CN109552961B (zh) * 2018-07-09 2023-08-22 杭州职业技术学院 电梯安全锁定装置
EP3674244B1 (en) * 2018-12-31 2022-09-14 KONE Corporation An elevator car parking brake
CN110407123A (zh) * 2019-08-08 2019-11-05 上海音锋机器人股份有限公司 一种升降平层自动抱闸机构
KR20220051347A (ko) 2019-08-29 2022-04-26 다이나텍, 다이나믹스 앤드 테크놀러지, 에스. 엘. 승강기용 양방향 비상 정지 장치의 전기 기계적 작동부
WO2020234490A1 (es) 2019-08-29 2020-11-26 Dynatech, Dynamics & Technology, S.L. Accionamiento electromecánico de un dispositivo unidireccional de parada de emergencia de un ascensor
US11912535B2 (en) 2019-09-30 2024-02-27 Inventio Ag Brake device
EP3822212A1 (en) * 2019-11-12 2021-05-19 KONE Corporation An elevator parking brake, a method for operating an elevator system and an elevator system

Citations (1)

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Publication number Priority date Publication date Assignee Title
CN101907140A (zh) * 2009-06-03 2010-12-08 河南理工大学 带增力机构的钳式制动器

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DE203891C (tr) *
US1206350A (en) * 1910-07-12 1916-11-28 Elevator Air Brake Company Elevator-brake.
GB554673A (en) * 1942-03-03 1943-07-14 Wm Wadsworth & Sons Ltd Improvements relating to safety devices for lifts or elevators
CN2437654Y (zh) * 2000-07-16 2001-07-04 李金山 物料提升机防坠落保护器
EP1489039B1 (de) * 2003-06-16 2007-07-25 Inventio Ag Seilbremse für einen Aufzug
CN201240732Y (zh) * 2008-07-14 2009-05-20 许文基 滑动跟随式偏载控制安全钳连接机构

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
CN101907140A (zh) * 2009-06-03 2010-12-08 河南理工大学 带增力机构的钳式制动器

Also Published As

Publication number Publication date
PL2978702T3 (pl) 2018-05-30
EP2978702A1 (de) 2016-02-03
HK1216170A1 (zh) 2016-10-21
CN105358462B (zh) 2017-05-24
ES2654673T3 (es) 2018-02-14
WO2014154306A1 (de) 2014-10-02
TR201802372T4 (tr) 2018-03-21
CN105358462A (zh) 2016-02-24
CH707833A1 (de) 2014-09-30

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