CN101372302B - Elevator equipment - Google Patents
Elevator equipment Download PDFInfo
- Publication number
- CN101372302B CN101372302B CN2008101441523A CN200810144152A CN101372302B CN 101372302 B CN101372302 B CN 101372302B CN 2008101441523 A CN2008101441523 A CN 2008101441523A CN 200810144152 A CN200810144152 A CN 200810144152A CN 101372302 B CN101372302 B CN 101372302B
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- China
- Prior art keywords
- braking element
- guide rail
- base portion
- lift car
- clamping
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Abstract
The purpose of the invention is to provide a lift apparatus; the lift apparatus has an emergence brake device which does not need to add the capacity of the actuator but can brake the lift car. The emergence brake device (7) of the invention is composed of a first emergence brake device and a second emergence brake device; the first emergence brake device clamps a guide rail (2A, 2B) by a brake component (13A, 13B) to stop and descend the lift car (3); the second emergence brake device shifts to the first emergence brake device side when the descending speed of the lift car (3) exceeds the prescribed value to cause the brake component (13A, 13B) of the first emergence brake device to act. Because adopting the structure, the second emergence brake device only needs to keep itself on the guide rail and keep the brake component of the first emergence brake device to keep the force; thereby, the device is able to reduce the capacity of the actuator (21) of relieving the holding force of the second emergence brake device when normally runs.
Description
Technical field
The present invention relates to a kind of lift facility, especially relate to a kind of lift facility that adopts electronic mode to make the emergency braking apparatus action.
Background technology
For example disclosed as patent documentation 1, proposed when the descending speed of lift car surpasses specified value, to adopt electronic mode to make the lift facility of emergency braking apparatus action.
In the emergency braking apparatus of this patent documentation 1 disclosed lift facility, when carrying out the emergency braking of lift car, by spring from the below mention tapered member and be inserted into guide rail and the leader of emergency braking apparatus between, between guide rail and tapered member, produce big friction force thus, so that lift car is braked.And, when normally moving, owing to must make the spring that drives tapered member be in compressive state, so used actuator such as electromagnet.
The open WO2004/083091 communique (Fig. 1 to Fig. 3) of patent documentation 1 Japan internationality
In the emergency braking apparatus of this patent documentation 1 disclosed lift facility, owing to must make the spring of mentioning tapered member be in compressive state when normal operation, actuators such as the high-capacity electromagnet of necessary use are so that can overcome this compression of spring power.And,, must improve the speed of mentioning of tapered member as much as possible for lift car is carried out emergency braking., if improve the speed of mentioning of tapered member, then must add the elastic force constant of big spring, and accomplish that this point also needs to strengthen the capacity of actuator.
The capacity of the actuator of emergency braking apparatus increases, and means that the weight of emergency braking apparatus increases, and this and lift car single-piece lightweight requirements run in the opposite direction.
Summary of the invention
The object of the present invention is to provide a kind of lift facility, the emergency braking apparatus that the capacity that this lift facility has does not need to strengthen actuator just can be braked lift car.
To achieve these goals, emergency braking apparatus of the present invention is made of first emergency braking apparatus and second emergency braking apparatus, this first emergency braking apparatus is with the described guide rail of braking element clamping, so that described lift car stops to descend, when second emergency braking apparatus surpasses specified value at the descending speed of lift car, towards described first emergency braking apparatus side displacement, so that the action of the braking element of described first emergency braking apparatus.
Owing to adopted said structure, second emergency braking apparatus only need be guaranteed and will self remain on the guide rail and make the confining force of the braking element action of first emergency braking apparatus, its result can reduce to be used for to remove the capacity of actuator of the confining force of second emergency braking apparatus when normal operation.
The invention effect
According to the present invention of above explanation, can provide a kind of lift facility, the emergency braking apparatus that the capacity that this lift facility has does not need to strengthen actuator just can be braked lift car.
Description of drawings
Fig. 1 is the stereoscopic figure of the emergency braking apparatus that is used for lift facility involved in the present invention.
Fig. 2 is arranged on the stereoscopic figure of second emergency braking apparatus in the emergency braking apparatus of Fig. 1.
Fig. 3 is the birds-eye view of lateral cross section of second emergency braking apparatus of Fig. 2.
Fig. 4 is the schematic top plan view of operating state of arm of the emergency braking apparatus of presentation graphs 3.
Fig. 5 is the scheme drawing with lift facility of emergency braking apparatus shown in Figure 1.
Nomenclature
1 hoist trunk
2A, the 2B guide rail
The 2S wide format
3 lift cars
4 main hoist cables
5 counterbalanceds weight
6 winchs
7 emergency braking apparatus
8A, the 8B state detection sensor
9A, the 9B control part
10 first base portions
11A, 11B pressing force apply two foots of member
12 anchor shafts
13A, the 13B tapered member
14A, the 14B guiding elements
15 second base portions
15a, 15b bears seat
16 longitudinal axis
17A, the 17B arm
18A, the 18B brake shoe
19 spring directing pin
20 compression springs
21 actuators
22A electromagnetism winding
The 22B plunger
22C plunger guiding piece
23A, 23B retainer directing pin
The specific embodiment
Below referring to figs. 1 through Fig. 5 one embodiment of lift facility of the present invention is described.
Lift facility is roughly by constituting with the lower part: lift car 3, and it is arranged on pair of guide rails 2A in the hoist trunk 1,2B lifting along setting; Counterbalanced weight 5, it is connected with this lift car 3 by main hoist cable 4; Winch 6, it has the driving rope sheave, and main hoist cable 4 is wound on this driving rope sheave; Emergency braking apparatus 7, it is arranged on the bottom of described lift car 3, with described guide rail 2A, 2B relatively to; State detection sensor 8A, 8B, it is arranged in the described hoist trunk 1, is used for detecting the state of lift car 3; And control part 9A, 9B, its basis is from described state detection sensor 8A, and the status information of 8B is to described emergency braking apparatus 7 output action signals.These state detection sensors 8A, 8B and control part 9A, 9B are respectively arranged with two with the formation duplex system, but might not constitute duplex system.
By the state detection sensor 8A that detects lift car 3 states, lift car 3 states that 8B detected can list the location information of lift car 3, the velocity information of lift car 3 and the acceleration information of lift car 3 etc.The location information of so-called lift car 3 for example is meant, have between the neighbouring lift car in the lift facility of a plurality of lift cars lifting in same hoist trunk unusually near information, the velocity information of so-called lift car be meant the descending speed of lift car for example reach command speed more than 1.3 times the time unusual descending speed information, the acceleration information of so-called lift car 3 is meant the unusual acceleration information when acceleration/accel has exceeded predefined operational mode.As state detection sensor 8A, 8B has detected these abnormal informations of lift car, and control part 9A, and 9B judges and to have occurred when unusual, to emergency braking apparatus 7 output action command signals.
And, can be arranged to optionally obtain separately location information, velocity information and the acceleration information of lift car 3, also can be arranged to combination and obtain a plurality of information.
In addition, emergency braking apparatus 7 is made of first emergency braking apparatus and second emergency braking apparatus.
As Fig. 1 and shown in Figure 2, first emergency braking apparatus has on the lift car of being fixed on 3, constitutes first base portion 10 of strength member.This first base portion 10 by upper frame 10A, lower frame 10B and about side frame 10C, 10D constitutes.First elastic component, the side frame 10C about for example the pressing force that is made of the slab spring in U word shape cross section applies member and is positioned at, the inboard of 10D, two 11A of foot, 11B is embedded in the anchor shaft 12 loosely.Apply member and described guide rail 2A at this pressing force, the wide format 2S of 2B relatively to the position be provided with narrow and the conical suface that downside is wide of upside.And the inboard of this conical suface with guide rail 2A, 2B relatively to the position be provided with tapered member 13A as first braking element, 13B, this tapered member applies guiding elements 14A on the member through being fixed on pressing force, the guiding of 14B and can moving at above-below direction, wherein, tapered member 13A, 13B have brake surface and back taper face, wherein brake surface perpendicular to described guide rail 2A, the side that the wide format 2S of 2B is relative, back taper face be positioned at relative with described conical suface to a side.Described tapered member 13A, 13B is positioned at low level when lift facility normally moves, and with guide rail 2A, guarantee between the wide format 2S of 2B gapped, when the emergency state has taken place, move towards the top along described conical suface, with guide rail 2A, the wide format 2S of 2B contacts and the generation braking force.
More than explanation is the structure of first emergency braking apparatus.
In addition, as shown in Figure 1 to Figure 3, second emergency braking apparatus has second base portion 15, this second base portion 15 also by upper frame 15A, lower frame 15B and about side frame 15C, 15D constitutes.This second base portion 15 is constituted as by the longitudinal axis 16 that is fixed on described first base portion 10 inboards and connects, and can be along this longitudinal axis 16 towards the displacement of rising direction.
In the inboard of second base portion 15, by a pair of arm 17A that the described longitudinal axis 16 supports, 17B is supported for displacement along the vertical direction.Arm 17A, one of 17B distolaterally extends to and described guide rail 2A from the longitudinal axis 16, the wide format 2S of 2B relatively to the position, and brake shoe 18A as second braking element is installed, 18B on this elongated end.Arm 17A, another of 17B is distolateral to be extended to and guide rail 2A from the longitudinal axis 16, the side that 2B is opposite, and on this elongated end, have actuating mechanism.
This actuating mechanism is second elastic component, is made of compression spring 20 and actuator 21, and wherein this compression spring 20 is embedded in loosely and crosses over arm 17A, in the spring guide finger 19 that 17B is provided with, this actuator 21 is arranged on arm 17A, between the 17B, is used for compressing this compression spring 20.In addition, actuator 21 is made of electromagnetism winding 22A and plunger 22B, and wherein this electromagnetism winding 22A is fixed on arm 17B side, and this plunger 22B is connected arm 17A side by plunger guiding piece 22C, and runs through described electromagnetism winding 22A and arm 17B.And, as electromagnetism winding 22A during not by excitation, shown in Fig. 4 (B), under the effect of the elastic force of compression spring 20, make arm 17A, open towards the arrow B direction the other end of 17B, leading section is narrowed down, and by brake shoe 18A, 18B is from sandwich guide rail 2A, the wide format 2S of 2B.As electromagnetism winding 22A during by excitation, shown in the arrow A of Fig. 4 (A), compression spring 20 is compressed, plunger 22B is held by electromagnetism winding 22A, causes arm 17A, and the interval of the other end of 17B narrows down, leading section broadens thus, brake shoe 18A, 18B leave guide rail 2A, the both sides of the wide format 2S of 2B.
In addition, constitute upper frame 15A and the described tapered member 13A of described second base portion 15, the lower end of 13B relatively to the position be provided with and tapered member 13A, the following end in contact of 13B bear a 15a, 15b, bear a 15a at this, the rear side of 15b (lower face side), retainer directing pin 23A, 23B is provided with highlightedly towards the below, the conical suface that makes it possible to apply along pressing force member makes described tapered member 13A, and 13B is top offset in the horizontal direction respectively.And, a described 15a that bears, 15b and retainer directing pin 23A, 23B and arm 17A, 17B is equipped with brake shoe 18A, and the leading section of 18B is configured to the vertical plane overlaid.Driving tapered member 13A, during 13B, be originally by making 15 displacements of second base portion, and through bearing a 15a, 15b drives tapered member 13A, 13B, and be by making the vertical plane overlaid now, make retainer directing pin 23A, the lower end of 23B and arm 17A, 17B is equipped with brake shoe 18A, the leading section of 18B near to or in contact with, is the cantilever design of fulcrum with what strengthen second base portion 15 with the longitudinal axis 16, thereby can more stably drive tapered member 13A, 13B.
Lift facility with the emergency braking apparatus 7 that has adopted said structure, at control part 9A, 9B judges by state detection sensor 8A, when the detected information of 8B does not have display abnormality, normally moves.When lift facility normally moves, the electromagnetism winding 22A of the actuator 21 of second emergency braking apparatus is by excitation, plunger 22A is held, so compression spring 20 is in confined state, and its result, shown in Fig. 4 (A), arm 17A, the leading section of 17B broadens, brake shoe 18A, 18B leaves guide rail 2A, the both sides of the wide format 2S of 2B.And second base portion 15 relies on deadweight and is positioned at the position of below, the tapered member 13A that is supported by second base portion, 13B also is directed into the guiding elements 14A of first emergency braking apparatus, the position of below of 14B, thus guide rail 2A left, the both sides of the wide format 2S of 2B.
On the other hand, when lift car descended, if control part 9A, 9B judged by state detection sensor 8A, when the detected information of 8B shows abnormality, and according to control part 9A, the instruction that 9B sends, the excitation of the electromagnetism winding 22A of actuator 21 is disengaged.After the excitation of electromagnetism winding 22A was disengaged, compression spring 20 was released, shown in the arrow B of Fig. 2 and Fig. 4 (B), and arm 17A, open the other end of 17B, and leading section narrows down.Arm 17A, after the leading section of 17B narrowed down, brake shoe 18A, 18B were towards the displacement of direction shown in the arrow C, and contact is clamping guide rail 2A also, the both sides of the wide format 2S of 2B.By brake shoe 18A, 18B is to guide rail 2A, and 2B pushes, even lift car 3 continues to descend, but second base portion 15 still with arm 17A, 17B is fixed on guide rail 2A together, 2B and keep original position.Its result, second base portion 15 along the longitudinal axis 16 in first base portion 10 towards above relative position move, be arranged on the tapered member 13A on second base portion 15,13B moves towards the top relative position under the guiding of 14B at the guiding elements 14A that is arranged on first base portion 10.Tapered member 13A, 13B towards above in the displacement, along being arranged on conical suface on first base portion 10 towards the direction displacement shown in the arrow D, thereby be pressed against guide rail 2A, on the wide format 2S of 2B, thus, first base portion 10 is fixed on guide rail 2A, on the 2B, its result, lift car 3 stops further decline.
As mentioned above, when lift car descends unusually, by making the action of second emergency braking apparatus, make lift car stop to descend, drive the tapered member 13A of first emergency braking apparatus thus, 13B, make the action of first emergency braking apparatus, thereby make lift car 3 stop to descend.
By adopting so structure, because 20 needs of compression spring have can clamping guide rail 2A, 2B is to keep second emergency braking apparatus and tapered member 13A, the compressive force of the weight of 13B, so when the capacity of the electromagnetism winding 22A that sets actuator 21, only need to compress have above-mentioned compressive force above-mentioned compression spring 20 just can, therefore, can use the electromagnetism winding 22A of low capacity.And, need to improve for lift car is promptly stopped tapered member mention speed the time, used the big compression spring of spring constant in the prior art, and in the present embodiment, owing to utilize the decline of lift car to mention tapered member, so there is no need to strengthen the capacity of actuator.So, at the described guide rail 2A of clamping, the Clamping force aspect of 2B, with respect to tapered member 13A as first braking element, 13B, as the brake shoe 18A of second braking element, the Clamping force of 18B is set lessly.
And, because tapered member 13A, 13B and brake shoe 18A, 18B is set in first base portion 10, so can shorten from brake shoe 18A, 18B begins action and plays tapered member 13A, the time till 13B begins to move, and shorten and play unusually the time that makes till lift car 3 stops from detecting.Simultaneously, owing to can shorten from detecting and play unusually the time that makes till lift car 3 stops, increase its result, the suffered impulsive force of lift car 3 in the time of can reducing emergency braking apparatus 7 actions so can suppress to detect the speed of the lift car 3 after unusual.
In the above-described embodiment, by arm 17A, 17B, brake shoe 18A, 18B, compression spring 20, actuator 21 and first base portion 10 and second base portion 15 constitute clamping guide rail 2A of the present invention, 2B is so that the tapered member of emergency braking apparatus (first braking element) towards the clamping device of braking position displacement, is delivered to the braking element of first emergency braking apparatus so that the action force transferring structure of its action by constituting the displacement with second emergency braking apparatus of the present invention with respect to second base portion 15 that first base portion 10 is carried out displacement.In addition, by state detection sensor 8A, the descending speed that 8B and control part 9A, 9B constitute detection lift car of the present invention whether surpass specified value and after surpassing specified value the instruction second emergency braking apparatus clamping guide rail command device and to the output unit of actuator output action halt instruction.
Claims (3)
1. lift facility has: lift car, and it carries out lifting by the guiding that setting is arranged on the guide rail in the hoist trunk; Counterbalanced weight, it is connected with this lift car by main hoist cable; Winch, described main hoist cable are wound on the drive pulley of this winch and by this drive pulley and drive; And emergency braking apparatus, it is arranged on the described lift car, is used for to lift car brake activation power, and described lift facility is characterised in that,
Described emergency braking apparatus has: first braking element, the described guide rail of its clamping; First elastic component, it applies Clamping force to described first braking element; First base portion, it is fixed on the described lift car, can support described first braking element in the mode that above-below direction moves; The longitudinal axis, it is supported on this first base portion; Second base portion, it is supported by this longitudinal axis and can be at the above-below direction top offset; A pair of arm, the inboard that it is positioned at this second base portion, being supported for to be that fulcrum rotates with the described longitudinal axis; Second braking element, the end side that it is installed in this a pair of arm respectively is used for the described guide rail of clamping; Second elastic component, another end side that it is installed in described a pair of arm is used for described second braking element by being pressed in described guide rail; Actuator, another end side that it is installed in described a pair of arm is used to overcome the pressing force of described second elastic component so that described second braking element leaves described guide rail; And bear seat, it is arranged on described second base portion, and relative with the bottom of described first braking element to,
Described lift facility is provided with the action force transfer device, when the described guide rail of the described second braking element clamping, and when described second base portion is carried out relative displacement with respect to described first base portion, this action force transfer device passes to described first braking element with this relative displacement, drives described first braking element with this.
2. lift facility as claimed in claim 1 is characterized in that, the Clamping force of the described guide rail of clamping of described first braking element is configured to the Clamping force greater than the described guide rail of clamping of described second braking element.
3. lift facility as claimed in claim 1, it is characterized in that described first braking element and described second braking element are configured to be positioned at and make them to the equitant position of vertical plane perpendicular to the plane of the described longitudinal axis that is supported by described first base portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007213717 | 2007-08-20 | ||
| JP2007213717A JP4478704B2 (en) | 2007-08-20 | 2007-08-20 | Elevator equipment |
| JP2007-213717 | 2007-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101372302A CN101372302A (en) | 2009-02-25 |
| CN101372302B true CN101372302B (en) | 2011-01-26 |
Family
ID=40446713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101441523A Active CN101372302B (en) | 2007-08-20 | 2008-07-29 | Elevator equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4478704B2 (en) |
| CN (1) | CN101372302B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5371718B2 (en) * | 2009-12-02 | 2013-12-18 | 株式会社日立製作所 | Elevator |
| WO2011146050A1 (en) * | 2010-05-18 | 2011-11-24 | Otis Elevator Company | Integrated elevator safety system |
| JP5548524B2 (en) * | 2010-06-01 | 2014-07-16 | 株式会社日立製作所 | Lifting device with safety device |
| JP5325857B2 (en) * | 2010-09-24 | 2013-10-23 | 株式会社日立製作所 | Elevator braking device and elevator device using the same |
| JP5603755B2 (en) * | 2010-11-24 | 2014-10-08 | 株式会社日立製作所 | Elevator equipment |
| JP5345183B2 (en) * | 2011-07-14 | 2013-11-20 | 株式会社日立製作所 | Elevator emergency stop device |
| US10442662B2 (en) * | 2013-12-19 | 2019-10-15 | Inventio Ag | Caliper brake for elevator systems |
| CN106458512B (en) * | 2014-06-12 | 2019-06-14 | 奥的斯电梯公司 | Braking element actuating mechanism |
| ES2703351T3 (en) | 2014-06-12 | 2019-03-08 | Otis Elevator Co | Braking system reset mechanism for an elevated structure |
| DE202015104095U1 (en) | 2015-08-05 | 2016-11-09 | Wittur Holding Gmbh | Elevator with braking device in the manner of a clamp brake |
| JP2018104175A (en) * | 2016-12-28 | 2018-07-05 | 株式会社日立製作所 | Governor device and elevator |
| JP2019089643A (en) * | 2017-11-16 | 2019-06-13 | 株式会社日立製作所 | Emergency stop device and elevator |
| CN108313849B (en) * | 2018-04-20 | 2023-06-30 | 湖南省计量检测研究院 | Emergency safety electromechanical system of elevator |
| EP3674244B1 (en) * | 2018-12-31 | 2022-09-14 | KONE Corporation | An elevator car parking brake |
| CN110657174B (en) * | 2019-09-29 | 2021-05-14 | 内蒙古凯帝斯电梯制造有限公司 | Elevator brake |
| WO2023175716A1 (en) * | 2022-03-15 | 2023-09-21 | 株式会社日立製作所 | Elevator device |
| WO2023248410A1 (en) * | 2022-06-23 | 2023-12-28 | 株式会社日立製作所 | Elevator apparatus |
-
2007
- 2007-08-20 JP JP2007213717A patent/JP4478704B2/en not_active Expired - Fee Related
-
2008
- 2008-07-29 CN CN2008101441523A patent/CN101372302B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101372302A (en) | 2009-02-25 |
| JP2009046246A (en) | 2009-03-05 |
| JP4478704B2 (en) | 2010-06-09 |
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