CN107416637A - A kind of hoist falling-proof system - Google Patents
A kind of hoist falling-proof system Download PDFInfo
- Publication number
- CN107416637A CN107416637A CN201710459404.0A CN201710459404A CN107416637A CN 107416637 A CN107416637 A CN 107416637A CN 201710459404 A CN201710459404 A CN 201710459404A CN 107416637 A CN107416637 A CN 107416637A
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- magnet
- riser guide
- catching device
- proof system
- 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.)
- Pending
Links
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
-
- 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
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/002—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a medium with electrically or magnetically controlled internal friction, e.g. electrorheological fluid, magnetic powder
Abstract
The present invention relates to jacking system technical field, a kind of more particularly to hoist falling-proof system, it includes catching device, elevator car, riser guide, riser guide is located at the both sides of elevator car, catching device is fixedly connected with elevator car, catching device is slidably connected with riser guide, brake fluid is provided with space between riser guide and catching device cooperation position, catching device includes the first magnet and the second magnet, first magnet is used to provide the first magnetic field, first magnetic field influences brake fluid to provide anti-fall brake force, second magnet is used to optionally provide the second magnetic field, second magnetic fields influence brake fluid to control anti-fall brake force in the first magnetic field.Anti-sagging reliability of the present invention is high, avoids causing riser guide concentrated wear or damage, does not interfere with the normal work of lift, ensures the comfort of occupant and avoid the damage of occupant or bearing goods.
Description
Technical field
The present invention relates to jacking system technical field, more particularly to a kind of hoist falling-proof system.
Background technology
Elevator system includes anti-drop system, for when elevator car occur fall failure when, for example, brake lose
Effect, is maintained at home elevator car or counterweight, occurs for example, being maintained near falling accident point.Generally, catching device
System includes speed limiter system and safe forceps system, and when fall failure occurs for elevator car, speed limiter system excites, and makes peace
Full forceps system start, elevator car is able to rapidly the motion that stops falling, so as to ensure the safety of occupant or goods.
Safe forceps system includes pull bar, for making the comparatively safe pincers housing of safety tongs voussoir do relative motion, generally, safety
Pincers voussoir is formed by two groups, and every group of safety tongs voussoir includes two voussoirs, and it is respectively placed in the both sides of guide rail, and guide rail passes through certain
Mode is fixed relative to hoistway, and safety tongs housing keeps fixing relative to elevator car.When fall failure occurs, well is placed in
Limiter of speed at the top of road excites, and speed limit steel wire rope stop motion, causes pull bar stop motion, and safety tongs shell is with lift sedan-chair
Railway carriage or compartment continues to fall, and causes the wedge groove on safety tongs shell to promote voussoir skew to rely on guide pass, and produce certain compression
Power, caused frictional force make elevator car relative to guide rail remains stationary state.Kept between safety tongs voussoir and guide rail
Gap is regarded as the state of acquiescence.Under default conditions, limiter of speed is not excited, without friction between safety tongs voussoir and guide rail
Power, the position of elevator car are controlled by lifter system.
Although the conventional structure based on solid phase friction is effective, it may have the drawback that, first, as lift takes
The increase of business time, the abrasion of component may cause the gap between safety tongs voussoir and guide rail to increase, reduce its reliability；Its
Two, braking maneuver suddenly, it is possible to create very big acceleration, it is not only possible to guide rail concentrated wear or damage are caused, so as to shadow
The normal work of lift is rung, and the sense of discomfort and fear of occupant may be caused, it is also possible to causes the goods of occupant or carrying
Thing damages.
The content of the invention
(1) technical problems to be solved
The present invention provides a kind of hoist falling-proof system, not high, easy for solving existing hoist falling-proof system reliability
Cause guide rail concentrated wear, the problem of occupant's comfort level is not high.
(2) technical scheme
In order to solve the above-mentioned technical problem, the present invention provides a kind of hoist falling-proof system, including catching device, lift sedan-chair
Railway carriage or compartment, riser guide, the riser guide are located at the both sides of the elevator car, are fixedly connected on the elevator car described
Catching device, and the catching device is slidably connected with the riser guide, the riser guide and the catching device cooperation position it
Between space in be provided with brake fluid, the catching device includes the first magnet and the second magnet, and first magnet is used to provide
First magnetic field, first magnetic field influence the brake fluid to provide anti-fall brake force, and second magnet is used for selectivity
Ground provides the second magnetic field, and second magnetic fields influence the brake fluid to control the anti-fall system in first magnetic field
Power.
Wherein, first magnet includes permanent magnet, and second magnet includes electromagnet.
Wherein, the electromagnet includes coil.
Wherein, second magnetic field makes first magnetic field away from the brake fluid, to reduce the anti-fall brake force,
Or second magnetic field is cooperated with first magnetic field, to increase the anti-fall brake force.
Wherein, the electromagnet also includes housing, and the coil is arranged in the housing, the housing and the lifting
Guide rail is slidably connected, and the space between the housing and the riser guide cooperation position is provided with the braking fluid.
Wherein, seal is provided between the riser guide and the housing, to prevent the brake fluid from leaking outside.
Wherein, the brake fluid is magneto-rheological fluid.
Wherein, the magneto-rheological fluid is the solid-liquid two-phase mixture that magnetic particle suspends in a fluid.
Wherein, the magneto-rheological fluid includes the magnetic particle of 77% percentage by weight and the fluid of 23% percentage by weight.
Wherein, the elevator car has been fixedly connected with multiple catching devices per side.
(3) beneficial effect
Hoist falling-proof system provided by the invention, has the characteristics that compared to prior art：
1st, hoist falling-proof system of the invention, the catching device with the first magnet and the second magnet and riser guide it
Between be provided with brake fluid, by the collective effect of the first magnet, the second magnet and brake fluid, no longer rubbed using the surface of solids
The effect of wiping, the reliability of anti-drop system can be realized, avoid causing riser guide concentrated wear or damage, do not interfere with lifting
The normal work of machine, so as to ensure the comfort of occupant and avoid the damage of occupant or bearing goods；
2nd, hoist falling-proof system of the invention, passes through the shape of the cooperation position between riser guide and catching device, energy
The void surface area size of enough effective adjustment therebetween, so as to realize the change of the packing space of brake fluid, with
Beneficial to realizing anti-fall braking.
Brief description of the drawings
Fig. 1 is structure chart of the hoist falling-proof system provided by the invention in hoistway；
Fig. 2 is the overall structure figure of hoist falling-proof system provided by the invention；
Fig. 3 is the sectional view for the embodiment that riser guide provided by the invention coordinates with housing；
Fig. 4 is the sectional view for another embodiment that riser guide provided by the invention coordinates with housing；
Fig. 5 is the sectional view for the another embodiment that riser guide provided by the invention coordinates with housing；
In figure, 1：Catching device；2：Elevator car；3：Riser guide；4：First magnet；5：Second magnet；6：Coil；7：
Housing；8：Seal；9：Hoistway.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the better embodiment of the present invention.The preferred embodiments of the present invention are these are only, not thereby limit the special of the present invention
Sharp scope, every equivalent structure made using description of the invention and accompanying drawing content or equivalent flow conversion, or directly or
Connect and be used in other related technical areas, be included within the scope of the present invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all combination of related Listed Items.
The present invention provides a kind of hoist falling-proof system, not high, easy for solving existing hoist falling-proof system reliability
Cause guide rail concentrated wear, the problem of occupant's comfort level is not high.
As shown in Figure 1, 2, 3, a kind of hoist falling-proof system, including catching device 1, lift are provided in the embodiment of the present invention
Car 2 and riser guide 3, riser guide 3 are located at the both sides of elevator car 2, and the both sides of elevator car 2 are fixedly connected anti-fall
Device 1 is slidably connected with riser guide 3, and falling for elevator car 2 is prevented by the catching device 1 being connected on riser guide 3, is risen
Brake fluid is provided with space between drop guide rail 3 and the cooperation position of catching device 1, the brake fluid is used to provide anti-fall braking
Power, moreover, catching device 1 includes the first magnet 4 and the second magnet 5, the first magnet 4 is used to provide the first magnetic field, the first magnetic field shadow
Brake fluid is rung to provide anti-fall brake force, and the second magnet 5 is used to optionally provide the second magnetic field, the second magnetic field control first
Magnetic field influences brake fluid to control anti-fall brake force.The hoist falling-proof system of the present invention, the first magnet 4 and the second magnet 5
Anti-fall reverse rotating brake structure is provided for elevator car 2, the second magnetic field provided by the second magnet 5 controls the first magnet to provide
The first magnetic field control brake fluid in some way, brake fluid transmits braking stream between catching device 1 and riser guide 3
The internal friction of body, i.e., its control anti-fall brake force in a manner of magnetic, realize increase or reduce anti-fall brake force, it is anti-fall so as to control
The acceleration magnitude of braking procedure, thus, with catching device 1 elevator car 2 can be prevented relative by above-mentioned brake fluid
Moved in riser guide 3, without the retardation motion based on surface of solids friction as in existing known anti-fall component.
The hoist falling-proof system of the present invention, between the catching device and riser guide with the first magnet and the second magnet
Provided with brake fluid, by the collective effect of the first magnet, the second magnet and brake fluid, no longer using surface of solids friction
Effect, the reliability of anti-drop system can be realized, avoid causing riser guide concentrated wear or damage, do not interfere with lift
Normal work, so as to ensure when falling accident the occurs comfort of occupant and avoid the damage of occupant or bearing goods.
As shown in Figure 1, it is to be understood that hoist falling-proof system of the invention, its elevator car 2 and riser guide
3 in hoistway 9, and elevator car can move in hoistway 9, then be fixedly connected on the elevator car 2 in hoistway 9
There is catching device 1, anti-fall braking is realized by above-mentioned catching device 1；The brake fluid moved with elevator car 2 is adjacent to fixation
The surface of riser guide 3 in hoistway 9, so as to control catching device 1 to be led relative to lifting by controlling the viscosity of brake fluid
The motion of rail 3.In order to realize being fixedly connected for catching device and elevator car, in the present embodiment, catching device 1 and elevator car
2 are bolted, it is to be understood that other connected modes can also be used, so that catching device is fixed on elevator car
On；Moreover, gap be present between riser guide 3 and catching device 1 so that catching device 1 can move up and down with lift；
And the amount of the anti-fall brake fluid in the space between riser guide and catching device can be adjusted according to being actually needed
Change, i.e., in one embodiment, anti-fall brake fluid does not have the sky being completely filled between riser guide and catching device
In gap；Riser guide 3 can be the lift of jacking system guide rail in itself or what is in addition set in addition lead
Rail, in one embodiment, riser guide are exactly lift possessed guiding rail in itself.
The hoist falling-proof system of the present invention, brake fluid are magneto-rheological fluid, the viscosity of magneto-rheological fluid in response to by
Magnetic field that first magnet 4 and the second magnet 5 provide and change, consequently, it is possible to magneto-rheological fluid can be controlled by controlling magnetic field
Viscosity, and thus control puts on the anti-fall brake force of riser guide 3.Magneto-rheological fluid catching device 1 and riser guide 3 it
Between transmit the internal friction of magneto-rheological fluid, so as to preventing elevator car 2 to be moved relative to riser guide 3 in a manner of magnetic.
In the present embodiment, the second magnetic field that the second magnet 5 selectively provides, second magnetic field enables to the first magnet 4
The first magnetic field provided is away from brake fluid, to reduce anti-fall brake force, also, it is to be understood that, second magnetic field can also
It is enough to cooperate with the first magnetic field, to increase anti-fall brake force.
In the present embodiment, magneto-rheological fluid is that micro/nano level magnetic particle is suspended in consolidating in the liquid of such as artificial oil etc
Liquid two-phase mixture；Under the influence of magnetic field, magnetic particle chain type is oriented to increase the viscosity of magneto-rheological fluid, in no magnetic field
In the case of, magnetic particle loses orientation, reduces so as to the viscosity of magneto-rheological fluid, the viscosity of magneto-rheological fluid and the intensity in magnetic field into
Proportionate relationship；And the composition of magneto-rheological fluid can be according to desired viscosity and different to the response characteristic in magnetic field, further
, magneto-rheological fluid includes the magnetic particle of 77% percentage by weight and the fluid of 23% percentage by weight.
Optionally, in order to prevent from causing magnetic particle agglomeration to act on, magnetic particle surface can be coated with known surfactant.
In some instances, viscosity-modifying occurs in several microseconds, and if magnetic field intensity is enough sufficient, then magneto-rheological fluid will become viscous
Thick glue or close to solid-state.For example, about 100kA/m magnetic field makes magneto-rheological fluid gelatinization.In one example, first
There is suitable intensity to solidify anti-fall brake fluid in magnetic field.In further example, the anti-fall braking stream that is cured
Body is provided a benefit in that brake force is maintained and occurs without relative motion, and its characteristic is by having under being kept in magnetic field
The modulus of shearing of the magnetic particle chain of the magnetic lock of orientation is determined.
As shown in figure 3, in the present embodiment, in order to realize the control action in magnetic field, the first magnet 4 includes permanent magnet, second
Magnet 5 includes electromagnet.In order to realize that the second magnet electromagnet includes coil 6, its based on the size of current for putting on coil 6 and
Second magnetic field is provided set direction.It is understood that the second magnetic responsiveness in the first electric current by coil 6 and with magnetic
Mode offsets the first magnetic field to provide the first anti-fall brake force, and in response to the second electric current by coil 6 and in a manner of magnetic
Synthesized with the first magnetic field to provide the second anti-fall brake force, the second anti-fall brake force is more than the first anti-fall brake force, the second electric current
It is reverse with the first electric current.When the second magnet 5 disables, the anti-fall brake fluid of the first magnetic field penetration, the first magnetic field is in a manner of magnetic
Make the magnetic particle in anti-fall brake fluid that chain effect occur to increase the viscosity of anti-fall brake fluid, and thus with magnetic side
Formula prevents motion of the elevator car 2 relative to riser guide 3 using catching device 1.
In order to ensure the normal operation of elevator car 2, then need to eliminate the anti-fall system provided by anti-fall brake fluid
Power, the coil 6 of the second magnet 5 are energized to provide the second magnetic field.Second magnetic field offsets the first magnetic field in a manner of magnetic, so that
First magnetic field is reduced through the penetration of anti-fall brake fluid, and can even be reduced to zero.Penetration (i.e. magnetic flux)
Reduction reduces the viscosity of anti-fall brake fluid, so as to reduce anti-fall brake force, to ensure the normal fortune of elevator car 2
OK.In one example, when the viscosity of anti-fall brake fluid reduces, riser guide 3 is in anti-fall brake fluid with micro-
Its micro- friction power loss and relative motion.For example, frictional force is about 1.5% left side of the specified brake force of fall arrestor assemblies
It is right.
In the present embodiment, electromagnet also includes housing 7, i.e. the second magnet is the electromagnet formed by coil 6 and housing 7,
Wherein, coil 6 is arranged in housing 7, and housing 7 is slidably connected with riser guide 3, between housing 7 and the cooperation position of riser guide 3
Space be provided with magneto-rheological fluid.
In the present embodiment, seal 8 is provided between riser guide 3 and housing 7, to prevent outside anti-fall brake fluid
Leakage.The hoist falling-proof system of the present invention, due to the space between riser guide 3 and catching device 1 be provided with brake fluid, from
And anti-fall brake force is provided, and in order to prevent the outer of brake fluid from leaking, sealing is provided between riser guide 3 and catching device 1
Part 8.Specifically, riser guide 3 includes protuberance, housing is provided with groove, and protuberance coordinates with the groove on housing, and lifts
The inner side and outer side in the space between guide rail and housing is equipped with seal 8.
In order to improve the efficiency of anti-fall braking, the both sides of elevator car 2 have been fixedly connected with multiple catching devices 1.This reality
Apply in example, every side of elevator car 2 is fixedly connected with 2 catching devices 1, and it is respectively distributed to every side of elevator car 2
Top and bottom.The hoist falling-proof system of the present invention, by the upper end for the elevator car 2 being matched with riser guide 3
Two catching devices 1 and lower end two catching devices 1, anti-fall braking effectively can be played a part of to elevator car 2.It is more
Individual catching device 1 belongs to a lift, and multiple catching devices 1 are arranged at the riser guide 3 of lift both sides, can
Strengthen the brake force of anti-drop system, further improve its reliability.
As shown in figure 4, in the present embodiment, in order to improve retardation efficiency, the cross section of the lug boss of riser guide 3 is in multiple tooth
Shape, and in order to be engaged with the lug boss, the shape of the cross sectional shape and the lug boss on riser guide 3 of the groove on housing 7
It is adapted.By the cooperation of this kind of form, the contact area between riser guide 3 and housing 7 can be increased, i.e., therebetween
Space increases, and a certain amount of brake fluid can be deposited in space, so as to provide favourable resources supplIes for anti-fall braking.
As shown in figure 5, further, two groups of coils and permanent magnet are equipped with housing 7, respectively positioned at riser guide 3 with
The both sides for the position that housing coordinates, i.e. the both sides of cooperation position are respectively equipped with a coil and permanent magnet, and riser guide 3 is convex
The portion of rising includes matrix and over-hang part, and the both sides of wherein matrix are equipped with over-hang part, and the cross section of over-hang part is in more dentations, is passed through
The cooperation of the concrete form and the setting of coil and permanent magnet, space-saving the efficiency of anti-fall braking can be improved simultaneously,
So as to be more favorable for the application in elevator system.
And it is further, a kind of illustrative methods for controlling lifting catching device system include：The first magnetic field is established, to influence
Brake fluid simultaneously provides anti-fall brake force；The second magnetic field is optionally provided, to control how the first magnetic field influences braking stream
Body, and anti-fall brake force is thus controlled, or the active force between elevator car and riser guide is provided and changes both power
Interactively.For example, the intensity in controllable second magnetic field or direction to be optionally to increase or reduce anti-fall brake force, so as to control
Make the acceleration magnitude of anti-fall braking procedure.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (10)
1. a kind of hoist falling-proof system, it is characterised in that including catching device, elevator car, riser guide, the lifting is led
Rail is located at the both sides of the elevator car, is fixedly connected with the catching device on the elevator car, and the catching device with
The riser guide is slidably connected, and braking stream is provided with the space between the riser guide and the catching device cooperation position
Body, the catching device include the first magnet and the second magnet, and first magnet is used to provide the first magnetic field, first magnetic field
The brake fluid is influenceed to provide anti-fall brake force, second magnet is used to optionally provide the second magnetic field, and described the
Two magnetic fields influence the brake fluid to control the anti-fall brake force in first magnetic field.
2. hoist falling-proof system according to claim 1, it is characterised in that first magnet includes permanent magnet, institute
Stating the second magnet includes electromagnet.
3. hoist falling-proof system according to claim 2, it is characterised in that the electromagnet includes coil.
4. hoist falling-proof system according to claim 3, it is characterised in that second magnetic field makes first magnetic field
The remote brake fluid, to reduce the anti-fall brake force, or, second magnetic field is cooperated with first magnetic field, with
Increase the anti-fall brake force.
5. hoist falling-proof system according to claim 3, it is characterised in that the electromagnet also includes housing, described
Coil is arranged in the housing, and the housing is slidably connected with the riser guide, and the housing is matched somebody with somebody with the riser guide
The space closed between position is provided with the braking fluid.
6. hoist falling-proof system according to claim 5, it is characterised in that between the riser guide and the housing
Provided with seal, to prevent the brake fluid from leaking outside.
7. hoist falling-proof system according to claim 1, it is characterised in that the brake fluid is magneto-rheological fluid.
8. hoist falling-proof system according to claim 7, it is characterised in that the magneto-rheological fluid suspends for magnetic particle
Solid-liquid two-phase mixture in a fluid.
9. hoist falling-proof system according to claim 8, it is characterised in that the magneto-rheological fluid includes 77% weight
The magnetic particle of percentage and the fluid of 23% percentage by weight.
10. the hoist falling-proof system according to any one of claim 1-9, it is characterised in that the elevator car
Multiple catching devices have been fixedly connected with per side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710459404.0A CN107416637A (en) | 2017-06-16 | 2017-06-16 | A kind of hoist falling-proof system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710459404.0A CN107416637A (en) | 2017-06-16 | 2017-06-16 | A kind of hoist falling-proof system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107416637A true CN107416637A (en) | 2017-12-01 |
Family
ID=60428236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710459404.0A Pending CN107416637A (en) | 2017-06-16 | 2017-06-16 | A kind of hoist falling-proof system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107416637A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179139A (en) * | 2018-11-05 | 2019-01-11 | 苏州市职业大学 | Elevator disk permanent magnet brake |
| CN109205497A (en) * | 2018-11-05 | 2019-01-15 | 苏州市职业大学 | Elevator drum-type permanent magnet brake |
| CN110861991A (en) * | 2019-11-14 | 2020-03-06 | 徐蒙 | Emergency anti-falling system for building construction elevator |
| US11053097B2 (en) | 2018-07-26 | 2021-07-06 | Otis Elevator Company | Magnet assembly for an electronic safety brake actuator (ESBA) |
| US11345570B2 (en) * | 2018-06-28 | 2022-05-31 | Otis Elevator Company | Electronic safety actuator electromagnetic guidance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB400157A (en) * | 1932-01-12 | 1933-10-19 | Westinghouse Electric & Mfg Co | Improvements in or relating to elevator installations |
| CN101148233A (en) * | 2006-09-19 | 2008-03-26 | 维托公开股份有限公司 | Auto resetting mechanism for a BSG type brake arresting device/safety plier |
| CN101795953A (en) * | 2007-09-07 | 2010-08-04 | 奥蒂斯电梯公司 | Elevator brake with magneto-rheological fluid |
| CN201598074U (en) * | 2010-02-04 | 2010-10-06 | 沈阳优力机电设备有限公司 | Block-type electromagnetic brake |
| CN102817940A (en) * | 2012-08-11 | 2012-12-12 | 林智勇 | Magnetofluid disc brake |
-
2017
- 2017-06-16 CN CN201710459404.0A patent/CN107416637A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB400157A (en) * | 1932-01-12 | 1933-10-19 | Westinghouse Electric & Mfg Co | Improvements in or relating to elevator installations |
| CN101148233A (en) * | 2006-09-19 | 2008-03-26 | 维托公开股份有限公司 | Auto resetting mechanism for a BSG type brake arresting device/safety plier |
| CN101795953A (en) * | 2007-09-07 | 2010-08-04 | 奥蒂斯电梯公司 | Elevator brake with magneto-rheological fluid |
| CN201598074U (en) * | 2010-02-04 | 2010-10-06 | 沈阳优力机电设备有限公司 | Block-type electromagnetic brake |
| CN102817940A (en) * | 2012-08-11 | 2012-12-12 | 林智勇 | Magnetofluid disc brake |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11345570B2 (en) * | 2018-06-28 | 2022-05-31 | Otis Elevator Company | Electronic safety actuator electromagnetic guidance |
| US11053097B2 (en) | 2018-07-26 | 2021-07-06 | Otis Elevator Company | Magnet assembly for an electronic safety brake actuator (ESBA) |
| CN109179139A (en) * | 2018-11-05 | 2019-01-11 | 苏州市职业大学 | Elevator disk permanent magnet brake |
| CN109205497A (en) * | 2018-11-05 | 2019-01-15 | 苏州市职业大学 | Elevator drum-type permanent magnet brake |
| CN110861991A (en) * | 2019-11-14 | 2020-03-06 | 徐蒙 | Emergency anti-falling system for building construction elevator |
| CN112573321A (en) * | 2019-11-14 | 2021-03-30 | 徐蒙 | Emergency anti-falling system and method for building construction elevator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107416637A (en) | A kind of hoist falling-proof system | |
| DE60012792T2 (en) | METHOD FOR BRAKING A DRIVE DISK | |
| FI125157B (en) | Elevator system | |
| US7717236B2 (en) | Elevator and elevator brake | |
| CN106516933A (en) | Electrodynamic type safety tong device and brake method of electrodynamic type safety tong device | |
| CN112088138B (en) | Safety device for elevator and safety system for elevator | |
| AU752593B2 (en) | Method for braking a traction sheave elevator, and traction sheave elevator | |
| US5713434A (en) | Elevator safety system | |
| CN102272030A (en) | Elevator provided with locking apparatus to prevent movement of the elevator car and locking apparatus to prevent movement of the elevator car | |
| CN105073621A (en) | Installation arrangement for an elevator | |
| WO2013161037A1 (en) | Elevator device and method for assembling guide rail for same | |
| WO2015121940A1 (en) | Tie-down device | |
| CN106061884B (en) | For the low structure trolley of Cable pull | |
| CN103269967B (en) | Lift facility with double decker | |
| CN216043591U (en) | Self-locking device for drill rod lifter | |
| CN204624882U (en) | A kind of novel elevator overspeed protection device | |
| CN104828680A (en) | Elevator with balanced counterweight | |
| JP2010024014A (en) | Hoisting machine for elevator | |
| CN205061286U (en) | Two cars are towline tension compensation arrangement for elevator | |
| US7377363B2 (en) | Elevator with variable drag for car and counterweight | |
| CN206857930U (en) | A kind of Cargo Lift based on magnetorheological transmission device | |
| CN105417319A (en) | Elevator capable of opening door in multiple directions | |
| CN100548849C (en) | Elevator with car and counterweight variable tractive force | |
| CN203728434U (en) | Crane movable pulley device provided with broken rope protection and falling prevention mechanism | |
| CN105883523B (en) | A kind of villa elevator instantaneous safety |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
|
| RJ01 | Rejection of invention patent application after publication |