CN106185528A - The emergency braking device of elevator - Google Patents
The emergency braking device of elevator Download PDFInfo
- Publication number
- CN106185528A CN106185528A CN201510279311.0A CN201510279311A CN106185528A CN 106185528 A CN106185528 A CN 106185528A CN 201510279311 A CN201510279311 A CN 201510279311A CN 106185528 A CN106185528 A CN 106185528A
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- CN
- China
- Prior art keywords
- elevator
- brake component
- braking device
- emergency braking
- friction means
- 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.)
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Abstract
The present invention provides the emergency braking device of a kind of elevator, and its emergency braking device that elevator can not be made to have reduces the abrasion of the brake component of emergency braking device with maximizing.The emergency braking device of this elevator includes: the brake component of a pair wedge-like, the guide rail that the lifting body of lifting in the lift path of elevator is guided by its clamping；At the tiltler that the rear side of brake component configures；Tiltler is applied the elastomer of active force；In case of emergency making the lifting piece of brake component and the relative change in location of car, the emergency braking device of this elevator can make lifting body emergent stopping, and wherein, brake component includes: at the friction means that the face relative with guide rail is projecting；Keep the supporting mass of friction means；The fixed component that this friction means will not come off is made from supporting mass with not relative with the guide rail face being fixed on supporting mass, holding friction means.
Description
Technical field
The present invention relates to occur the emergent stopping dress of the elevator mechanically making car stop during exception
Put, be pushed on guide rail particularly to by brake component, make brake component contact with slide and produce
The emergency braking device of the elevator of brake force.
Background technology
Patent documentation 1 has been recorded the example of the emergency braking device of existing elevator.This publication
Described in emergency braking device make friction means be cylinder, make this cylinder become flat to produce
The shape that the mode of the otch of planar is cut open, is constituted with the supporting parts keeping this friction means
Brake component.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2007-302450 publication
Summary of the invention
The problem that invention is to be solved
But, in the technology described in above-mentioned patent documentation because the friction means of brake component with
The area of the sliding contact of guide rail is little, and therefore the contact surface pressure in sliding contact portion raises, friction part
The abrasion loss of part increases, and there is the problem causing pushing force to reduce because of these abrasion.
The present invention proposes based on above-mentioned actual state of the prior art, its object is to provide one
Planting the emergency braking device of elevator, it can be subtracted by the contact surface pressure reducing sliding contact portion
The abrasion loss of little friction means, the reduction that will push against power suppresses in Min..
For solving the technical scheme of problem
In order to reach above-mentioned purpose, the present invention provides the emergency braking device of a kind of elevator, its bag
Including: the brake component of a pair wedge-like, its clamping is to the lifting body of lifting in the lift path of elevator
The guide rail guided；At the tiltler that the rear side of above-mentioned brake component configures；To above-mentioned inclination
Body applies the elastomer of active force；In case of emergency make above-mentioned brake component relative with car
The lifting piece of change in location, the emergency braking device of this elevator can make above-mentioned lifting body urgent
Stop, the emergency braking device of this elevator is characterised by: above-mentioned brake component includes: with on
State the friction means that the relative face of guide rail is projecting；Keep the supporting mass of above-mentioned friction means；
With not relative with the guide rail face being fixed on above-mentioned supporting mass, keep above-mentioned friction means to make this
The fixed component that friction means will not come off from above-mentioned supporting mass.
Invention effect
According to the present invention, in the emergency braking device that elevator has, it is possible to reduce and occur extremely
The contact surface pressure produced in the sliding contact portion of friction means with guide rail during situation, therefore, it is possible to subtract
The abrasion loss of few friction means.
Accompanying drawing explanation
Fig. 1 is the front elevation around the car of an embodiment of the elevator of the present invention.
Fig. 2 is front when being failure to actuate of the emergency braking device that the elevator shown in Fig. 1 is had
Figure.
Fig. 3 is the front elevation of the operating state that emergency braking device is described.
Fig. 4 is the main portion sectional view of the line A-A along Fig. 3.
Fig. 5 is the enlarged drawing of the brake component shown in Fig. 3 in terms of rail-sides.
Fig. 6 is the main portion sectional view of the line B-B along Fig. 5.
Detailed description of the invention
Hereinafter, the emergency braking device of the elevator of the present invention is described based on accompanying drawing.
Fig. 1 is that the lifting body of an embodiment of the elevator 100 with emergency braking device 4 is
Front elevation around car 1.Car 1 is by being wound on via the hoist cable 3 in portion mounted thereto
The method that the rope sheave of the not shown traction machine being positioned at the building the superiors is first-class, with drive system
Connect.Not shown speed controller rope is had, by speed regulator control additionally, also connect on car 1
Use during the speed of car processed.It addition, omit the details of car in these figures to simplify
Ground illustrates.
In the both sides of the lift path 21 moved up and down for car 1, it is provided with lifting body i.e. sedan-chair
The lifting in railway carriage or compartment 1 carries out the guide rail 2 guided.Guide rail 2 is joined in the way of relative with the both sides of car 1
It is equipped with a pair.In the way of clamp rail 2, the upper and lower surface at car 1 is provided with
Rail-guided portion 1a, 1b.Additionally, in the case of being also contemplated for counterweight as lifting body, although
Not shown, but it is again provided with the guide rail that the lifting of the counterweight as lifting body is guided.
And then, in the bottom of car 1, it is provided with and limits underground for outpacing at car 1
The emergency braking device 4 that car 1 is braked is made during fall.With Fig. 2 and Fig. 3, emergency braking device is described
The details of 4.Fig. 2 and Fig. 3 is the front elevation of emergency braking device 4.Herein, Fig. 2 is to represent
The figure of state during the generally operating that emergency braking device 4 is failure to actuate, Fig. 3 is to represent to make promptly
The figure of emergency operation state during arresting stop 4 action.
Emergency braking device 4 includes: a pair brake component 41 abutted with guide rail 2；From this braking
The tiltler 44 of the surface bearing brake component 41 of the side contrary with guide rail of part 41；With from inclination
The side contrary with guide rail of body 44 apply the U-shaped of pushing force in the face of a pair brake component 41
Elastomer 43.The elastomer 43 of this U-shaped is kept by framework 46.Brake component 41 is because of bullet
The pushing force of gonosome 43 and abut with guide rail 2, the whereabouts of car 1 is braked.
Guide rail 2 is fixed on the wall of lift path 21, is formed as the cross section extended in vertical
For the shape of T-shaped, a pair brake component 41 clips guide rail 2 and symmetrically configures.Brake component
41 are formed as trapezoidal column (wedge-like), in the face of the side of guide rail 2 is shaped generally as vertical face,
The face (back side) of the side contrary with guide rail is even surface, is formed as along with going to top and wide
The shape that degree narrows.
In the rear side of brake component 41, it is provided with multiple cylinder that has been arranged in the vertical direction
The roller 45 of the roller member of shape.In the position of more more outward than roller 45 (rear side), it is configured with and inclines
Italic 44.Tiltler 44 is formed as the trapezoidal column (wedge-like) that base side is shorter, top is longer,
Rear side is substantially vertical face, and the face contacted with elastomer 43 is circular shape.Front table
The face 44a of side, face (brake component 41 side) is formed as the even surface tilted.
The inclination of the rear side of inclined plane 44a of the front-surface side of tiltler 44 and brake component 41
Face 41a has the inclination of the relation of complementation, inclined plane 44a of tiltler 44 and brake component 41
Face 41a is parallel.The lateral surface of tiltler 44 is kept by the elastomer 43 of U-shaped.This elasticity
Body 43 can apply elastic force to tiltler 44, but under elastomer 43 state freely,
The gap having regulation is guaranteed between front surface and the guide rail 2 of brake component 41.
Additionally, in order to keep elastomer 43, roller 45, tiltler 44, brake component 41, arrange
There is framework 46.
In order to keep brake component 41 to be provided with lifting piece 42, this lifting piece 42 includes: the end
Face；The side surface part bent the most upward from this bottom surface sections；It is fixed on side with one end
The lifting arm 42a extended above to vertical in portion.Lifting piece 42 is arranged at a pair emergent stopping
In each of device 4, the guide rail 2 that lifting arm 42a configures respectively along left and right extends.Left and right
The top of a pair lifting arm 42a is connected with each other, and is provided with gripping governor rope near connecting portion
The maintaining part that Suo Jinhang keeps.
In the emergency braking device 4 so constituted, at the tune that not shown speed regulator detects
When the decrease speed of speed device rope exceedes setting speed, the speed controller rope of speed regulator is utilized to grip
Action, the motion of speed controller rope stops, and therefore the adjacent upper part at lifting arm 42a is arranged
Lifting arm 42a is relatively promoted by speed controller rope maintaining part.I.e., although car 1 continues urgency
Speed declines, but the lifting arm 42a together fallen with car 1 before this utilizes speed controller rope to be subtracted
Speed.The whereabouts of the brake component 41 placed by lifting piece that lifting arm 42a is connected in bottom
Speed also reduces.Thus, brake component relative to the framework 46 together declined with car 1, tilt
Body 44, elastomer 43, roller 45 rise relatively.Fig. 3 illustrates this state.
When brake component 41 rises relatively relative to the tiltler kept by elastomer 43, in order to make
Brake component 41 can move with lower resistance, at inclined plane 44a and the brake component 41 of tiltler 44
Inclined plane 41a between be provided with move up and down roller 45.
When brake component 41 moves the most in the vertical direction relative to tiltler 44, brake component
41 move along inclined plane 41a, 44a, and therefore brake component 41 moves the most in the horizontal direction.
And abut close to guide rail 2 with it from the left and right sides.Now, bearing surface is applied to make by elastomer 43
Firmly (pushing force).Due to the active force of elastomer 43, between guide rail 2 and brake component 41
Produce and this active force is multiplied by frictional force obtained by the coefficient of kinetic friction.Braking due to this frictional force
Effect, car 1 gradually slows down and stops.
Herein, to the brake force required by emergency braking device 4, need when braking with averagely
Being braked below deceleration 1G, therefore in the case of for express elevator, its braking distance depends on
Rely and increase in speed.Therefore, the brake component 41 with guide rail 2 sliding contact has abrasion loss also
The tendency increased along with the increase of braking distance.Thus, the emergency braking device 4 of express elevator
Brake component 41 need to be the outstanding material of abrasion resistance.Additionally, it is said that in general, abrasion loss
The tendency that when having the contact surface pressure rising in sliding contact portion, abrasion loss increases, therefore reduces slip
The contact surface pressure of contact site also is able to suppress abrasion loss.
But, the installation space of the building arranging elevator tapers into, it is necessary to promptly stop
The miniaturization of locking apparatus.Then, in order to improve the wear characteristic of brake component, brake component with lead
The contact site of rail uses various alloys or pottery etc..
The emergency braking device of the present invention of abrasion performance is improve with Fig. 4, Fig. 5 and Fig. 6 explanation
The example of the brake component 41 that 4 are used.Fig. 4 is to represent the shape that brake component 41 abuts with guide rail 2
State, along the main portion sectional view of line A-A of Fig. 3.Fig. 5 is braking in terms of rail-sides
The enlarged drawing of part 41.Additionally, Fig. 6 is the main portion sectional view of the line B-B along Fig. 5.
It addition, Fig. 5 and Fig. 6 illustrate only the side in the brake component 41 being formed as a pair, the opposing party
Brake component 41 be same shape, be asymmetrically formed.
Brake component 41 includes: the supporting mass 41c of wedge shape；It is square time in terms of guide rail opposite face side
And its cross section is trapezoidal friction means 41b；With fixed component 41d, friction means 41b is at this
The front-surface side of supporting mass 41c is configured with multiple (in figure being 3).Friction means 41b is inserted
Enter supporting mass 41c front surface part formed depressed part, be fixed on by fixed component 41d
Supporting mass 41c.Additionally, the depressed part of the front-surface side formation at supporting mass 41c, from guide rail
Opposite face side is also square when observing, and its cross section is illustrated in figure 5 trapezoidal, as it is shown in figure 5,
The trapezoidal upper surface of friction means 41b is from the trapezoidal upper surface of the depressed part of supporting mass 41c
Being protrudedly formed, the trapezoidal hypotenuse portion of depressed part contacts with the hypotenuse portion of friction means 41b,
Can be upper mobile in the horizontal direction (left and right directions of Fig. 5) parallel with the opposite face of guide rail 2,
Friction means 41b is limited relative to the motion on the direction in addition of supporting mass 41c.
So, friction means 41b is formed as trapezoidal shape, inserts supporting mass 41c, thus becomes
Prevent the structure that guide trackside comes off, additionally, the movement becoming the left and right directions to Fig. 5 is consolidated
Limiting-members 41d suppresses, so that the mode that friction means 41b will not come off from supporting mass 41c
Carry out the structure kept.
Additionally, by fixed component 41d being arranged on not relative with guide rail 2 outside, become
The structure of guide rail 2 and the slide area of friction means 41b can be guaranteed to greatest extent.
In the elevator 100 using the brake component 41 so constituted, there is sedan-chair because of certain fault
When railway carriage or compartment 1 dramatic decrease etc. are abnormal, before the speed of car 1 exceedes 1.4 times of normal speed, send out
The speed controller rope gripping action of raw not shown speed regulator.Thus, at emergency braking device 4
Brake component 41 install friction means 41b be pushed on guide rail 2 and slide.Now, Yin Mo
Wipe the frictional force produced between parts 41b and guide rail 2 and produce brake force, made by brake force
Car is braked.
Friction means 41b widely contacts with the sliding surface of guide rail 2, therefore friction means 41b
Compared with prior art can reduce with the contact surface pressure of guide rail 2, it is possible to reduce friction part
The abrasion loss of part 41b.
Additionally, in above-described embodiment, emergency braking device is arranged on cage side but it also may
Emergency braking device is arranged on the counterweight-side as lifting body.Additionally, the bottom at car is each
It is provided with 1 emergency braking device but it also may arrange two rail-sides in the bottom of car
Emergency braking device, at this point it is possible to the most multistage configuration and increase brake force, also
Same structure can be set at counterweight.
Additionally, in the above-described embodiments, every 1 brake component is configured with 3 in the vertical direction
Individual friction means, but the quantity of friction means is not limited to this, additionally, because be to pass through fixed part
The structure of the motion of part suppression left and right directions, so can also by friction means in the lateral direction
It is divided into multiple and configures.
Above-described embodiment simply illustrates, and the present invention is not limited to above-described embodiment.As long as not taking off
From the purport of the present invention described in the scope of claims, then the present invention include it can be considered that
Various modes.
Description of reference numerals
1 car
The rail-guided portion of 1a, 1b
2 guide rails
3 hoist cables
4 emergency braking devices
21 lift path
41 brake components
41a inclined plane
41b friction means
41c supporting mass
41d fixed component
42 lifting parts
42a lifting arm
43 elastomers
44 rakes
44a inclined plane
45 rollers
46 frameworks
100 elevators.
Claims (2)
1. an emergency braking device for elevator, comprising: the brake component of a pair wedge-like, its folder
Hold the guide rail that the lifting body of lifting in the lift path of elevator is guided；It is arranged in described
The tiltler of the rear side of brake component；Described tiltler is applied the elastomer of active force；With
In emergency circumstances make the lifting piece of described brake component and the relative change in location of car, this elevator
Emergency braking device can make described lifting body emergent stopping, the emergency braking device of this elevator
It is characterised by:
Described brake component includes: at the friction means that the face relative with described guide rail is projecting；
Keep the supporting mass of described friction means；Not relative with guide rail be fixed on described supporting mass
Face, keep described friction means make this friction means will not from described supporting mass come off fixing
Parts.
2. elevator emergency stop device as claimed in claim 1, it is characterised in that:
Described friction means is formed as trapezoidal, is inserted in the depressed part of supporting parts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014194629A JP2016064893A (en) | 2014-09-25 | 2014-09-25 | Emergency stop device for elevator |
| JP2014-194629 | 2014-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106185528A true CN106185528A (en) | 2016-12-07 |
Family
ID=55803976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510279311.0A Pending CN106185528A (en) | 2014-09-25 | 2015-05-27 | The emergency braking device of elevator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2016064893A (en) |
| CN (1) | CN106185528A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111867958A (en) * | 2018-03-23 | 2020-10-30 | 三菱电机株式会社 | Emergency stop device for elevator |
| US10927915B2 (en) | 2017-12-15 | 2021-02-23 | Otis Elevator Company | Spring useful for elevator safety device |
| US20240101392A1 (en) * | 2022-09-27 | 2024-03-28 | Otis Elevator Company | Elevator system safety brake |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109911738A (en) * | 2019-04-03 | 2019-06-21 | 宁波奥德普电梯部件有限公司 | A kind of large-tonnage instantaneous safety |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503257A (en) * | 1993-07-30 | 1996-04-02 | Mitsubishi Denki Kabushiki Kaisha | Brake shoe for elevator safety device |
| CN1176218A (en) * | 1996-09-10 | 1998-03-18 | 株式会社东芝 | Elevator with emergency stop function, emergency stop device for elevator and its brake scotch |
| CN1364138A (en) * | 2000-01-11 | 2002-08-14 | 株式会社东芝 | Elevator emergency stopping device |
| CN1430571A (en) * | 2000-05-25 | 2003-07-16 | 因温特奥股份公司 | Brake device for lift |
| CN101112955A (en) * | 2006-07-27 | 2008-01-30 | 东芝电梯株式会社 | Elevator emergency nraking device and elevator |
| CN103224176A (en) * | 2012-01-26 | 2013-07-31 | 株式会社日立制作所 | An emergency braking device used for an elevator and an elevator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS523797Y2 (en) * | 1974-05-10 | 1977-01-26 | ||
| JP3338326B2 (en) * | 1997-03-17 | 2002-10-28 | 株式会社東芝 | Brake shoe for elevator emergency stop device, elevator emergency stop device, and elevator having emergency stop function |
| JP5427682B2 (en) * | 2010-04-16 | 2014-02-26 | 株式会社日立製作所 | Emergency stop device and elevator using the same |
-
2014
- 2014-09-25 JP JP2014194629A patent/JP2016064893A/en active Pending
-
2015
- 2015-05-27 CN CN201510279311.0A patent/CN106185528A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503257A (en) * | 1993-07-30 | 1996-04-02 | Mitsubishi Denki Kabushiki Kaisha | Brake shoe for elevator safety device |
| CN1176218A (en) * | 1996-09-10 | 1998-03-18 | 株式会社东芝 | Elevator with emergency stop function, emergency stop device for elevator and its brake scotch |
| CN1364138A (en) * | 2000-01-11 | 2002-08-14 | 株式会社东芝 | Elevator emergency stopping device |
| CN1430571A (en) * | 2000-05-25 | 2003-07-16 | 因温特奥股份公司 | Brake device for lift |
| CN101112955A (en) * | 2006-07-27 | 2008-01-30 | 东芝电梯株式会社 | Elevator emergency nraking device and elevator |
| CN103224176A (en) * | 2012-01-26 | 2013-07-31 | 株式会社日立制作所 | An emergency braking device used for an elevator and an elevator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10927915B2 (en) | 2017-12-15 | 2021-02-23 | Otis Elevator Company | Spring useful for elevator safety device |
| CN111867958A (en) * | 2018-03-23 | 2020-10-30 | 三菱电机株式会社 | Emergency stop device for elevator |
| CN111867958B (en) * | 2018-03-23 | 2021-11-16 | 三菱电机株式会社 | Emergency stop device for elevator |
| US20240101392A1 (en) * | 2022-09-27 | 2024-03-28 | Otis Elevator Company | Elevator system safety brake |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016064893A (en) | 2016-04-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |
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| WD01 | Invention patent application deemed withdrawn after publication |