CN107720478A - A kind of elevator emergency brake device - Google Patents
A kind of elevator emergency brake device Download PDFInfo
- Publication number
- CN107720478A CN107720478A CN201710846812.1A CN201710846812A CN107720478A CN 107720478 A CN107720478 A CN 107720478A CN 201710846812 A CN201710846812 A CN 201710846812A CN 107720478 A CN107720478 A CN 107720478A
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- spring
- safety tongs
- centre operation
- cam
- wheel
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- 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
- B66B5/20—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 by means of rotatable eccentrically-mounted members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The present invention relates to a kind of elevator emergency brake device, including elevator lower beam, safety tongs, link gear is also equipped with elevator lower beam, link gear includes fixed plate, universal driving shaft and rocking arm; one end of rocking arm is connected with safety tongs, and the other end is provided with the lifting gear shaft being connected for the steel wire rope with limiter of speed；Lifting gear shaft is provided with restoring board, restoring board, which is provided with, resets through hole, spring fixed seat is also equipped with fixed plate, it is provided through resetting the mandrel of through hole on spring fixed seat, two back-moving springs for being located at restoring board both sides respectively are arranged with mandrel, one end of back-moving spring is contradicted on restoring board, and the other end of back-moving spring is contradicted on spring fixed seat.Link gear in the present invention can ensure that two swing arm synchronous axial systems to drive the safety tongs synchronous braking of elevator lower beam both sides, prevent lift car from being tilted during brake hard；Swing arm can be driven to reset for back-moving spring in brake release rear mandrel so that safety tongs unclamps guide rail.
Description
Technical field
The present invention relates to elevator safety control technology, especially a kind of elevator emergency brake device.
Background technology
Safety tongs is the important safety part of lift facility, and safety guarantee effect can be played in elevator overspeed, stall,
The action of safety tongs device is rope-clamping plierses is clamped governor rope by limiter of speed action, as car is run downwards, limiter of speed
Rope draws orange red safety tongs link mechanism, the action of safety tongs link mechanism, drives safety tongs braking member and guide rail contact so that guide rail
The safety tongs on both sides steps up on guide rail simultaneously, makes car stop.In order to ensure the safety tongs synchronization action of lift car both sides,
Safety tongs linkage is typically provided with to realize the safety tongs synchronous braking on both sides so that lift car is in brake hard process
In be not in tilt, but existing safety tongs brake linkage poor reliability, in brake hard, lift car may go out
Now tilt.
The content of the invention
It is an object of the invention to provide a kind of elevator emergency brake device, for ensureing that lift car both sides safety tongs is same
Step acts, and prevents lift car from being tilted during brake hard.
In order to solve the above problems, the present invention provides a kind of elevator emergency brake device, including elevator lower beam, the elevator
The both sides of underbeam are separately installed with the safety tongs coordinated with cage guide, are also equipped with the elevator lower beam described for driving
The link gear that safety tongs is synchronized with the movement, the link gear include fixed plate, universal driving shaft and rocking arm, two fixed plates point
The both sides of the elevator lower beam are not fixed on, and the universal driving shaft is arranged in the fixed plate and can rotated, described
The both ends of moving axis are stretched out the fixed plate and are fixedly linked with the rocking arm respectively, and the middle part of the rocking arm is consolidated with the universal driving shaft
Fixed to be connected and rotated with the universal driving shaft, one end of the rocking arm is connected with safety tongs, and the other end of the rocking arm is provided with use
In the lifting gear shaft that the steel wire rope with limiter of speed is connected；The lifting gear shaft is provided with restoring board, and the restoring board is provided with multiple
Position through hole, is also equipped with spring fixed seat in the fixed plate, and the reset through hole is provided through on the spring fixed seat
Mandrel, two back-moving springs for being located at the restoring board both sides respectively, one end of the back-moving spring are arranged with the mandrel
Contradict on the restoring board, the other end of the back-moving spring is contradicted on the spring fixed seat.
Elevator emergency brake device provided by the invention also has following technical characteristic：
Further, two spring fixing pipes are also arranged with the mandrel, the back-moving spring is set in the spring and fixed
Guan Shang；One end of the spring fixing pipe is provided with block seat, the block seat of the restoring board positioned at two spring fixing pipes
Between, the other end of the spring fixing pipe is provided with external screw thread；Described back-moving spring one end is contradicted on the block seat, described multiple
The other end of position spring is contradicted on the spring fixed seat, and the spring fixing pipe can be on the spring fixed seat along axis
It is mobile.
Further, the both sides of the elevator lower beam are also respectively fixed with safety tongs fixed seat, the safety tongs fixed seat
The chute coordinated with the sliding block on the safety tongs is provided with, further respectively has and leads on two side plates of the safety tongs fixed seat
Xiang Kong, the axis of guide is installed in the pilot hole, the safety tongs is in the presence of the chute, the axis of guide in the peace
Horizontally slipped in full pincers fixed seat；Formed with the fixed plate on the side plate.
Further, the top spring vertical with the axis of guide is additionally provided with the safety tongs fixed seat, it is described to push up the one of spring
End is contradicted on the bottom plate of the safety tongs fixed seat, and the other end of the top spring is contradicted on the safety tongs；The guiding
Hole is slotted hole, and the axis of guide can fluctuate with the safety tongs in the pilot hole.
Further, the safety tongs includes pedestal and the first brake block, the second brake block that are arranged on the pedestal,
The side of the pedestal is fixed with the sliding block；The side away from second brake block is provided with braking on first brake block
Groove, the position relative with the detent recess opening direction is provided with positioning cylinder on the pedestal, pacifies on the positioning cylinder
Equipped with rotatable braked wheel, the braked wheel includes cam, off-centre operation wheel setting up and down and be fixedly linked, the off-centre operation
The outer of wheel coordinates to drive first brake block to be moved to second brake block with the detent recess, the cam
Base radius is more than or equal to the radius of the off-centre operation wheel, and the cam may pass through first brake block and be pressed on elevator and leads
On rail, it is additionally provided with the braked wheel for the drive shaft with driving the braked wheel to rotate.
Further, the center of circle of the basic circle of the cam, the center of circle of the off-centre operation wheel, the center of circle position of the positioning cylinder
In on same straight line；The outer contour of the cam is on the basic circle center of circle of the cam and the circle center line connecting of the off-centre operation wheel
Symmetrically to realize bi-directional braking, or the cam outer contour by the basic circle center of circle of the cam and the circle of the off-centre operation wheel
Heart line is divided into up braking curve and descending braking curve.
Further, the off-centre operation wheel include the first off-centre operation wheel, the second off-centre operation wheel, the first off-centre operation wheel,
The cam, the second off-centre operation wheel are set gradually from top to bottom, and first brake block is provided with the first driving plate and the
Two driving plates, first driving plate are provided with the detent recess coordinated with the first off-centre operation wheel, second driving
Plate is provided with the detent recess coordinated with the second off-centre operation wheel, first driving plate and second driving plate it
Between may pass through the cavity formed with the cavity passed through for the cam, the cam and be pressed on cage guide.
Further, the drive shaft is fixed on the first off-centre operation wheel, the upper surface of the positioning cylinder and described the
The upper surface of one off-centre operation wheel is concordant, is further fixed on extending on the first off-centre operation wheel on the upper surface of the positioning cylinder
Tabletting to prevent the braked wheel from moving up.
Further, be further fixed on disk spring on the pedestal, one end of the disk spring with the pedestal
Fixed plate is fixedly linked, and the other end of the disk spring is fixedly linked with second brake block.
Further, two necks are offered on the downside of second driving plate, is fixed with the neck described in being wrapped in
The steel band of second off-centre operation wheel outer, the steel band are used to prevent first brake block from the braked wheel departing from.
The present invention has the advantages that：Two swing arms at universal driving shaft both ends are fixedly linked by universal driving shaft, wherein one
One end of individual swing arm is connected by lifting gear shaft with speed limiter wire rope, and when lift car needs brake hard, limiter of speed passes through
Rope belt, lifting gear shaft drive swing arm to rotate, and the swing arm of elevator lower beam opposite side is driven by universal driving shaft, and two swing arms synchronously turn
Move to drive the safety tongs synchronous braking of elevator lower beam both sides, prevent lift car from being tilted during brake hard；System
The back-moving spring on mandrel after dynamic releasing on spring fixed seat can drive swing arm to reset so that safety tongs unclamps guide rail, by setting
Put two back-moving springs can meet safety tongs bi-directional braking, reset needs, either the up brake hard of lift car or
The descending brake hard of lift car, safety tongs reset can be reliably achieved after brake release.
Brief description of the drawings
Fig. 1 is the structural representation of the elevator emergency brake device of the embodiment of the present invention；
Fig. 2 is the partial enlarged view in the A portions in Fig. 1；
Fig. 3 is the partial enlarged view in the B portions in Fig. 1；
Fig. 4 is the structural representation at another visual angle of the elevator emergency brake device of the embodiment of the present invention；
Fig. 5 is the left view of the elevator emergency brake device in Fig. 4；
Fig. 6 is the partial enlarged view in C portions in Fig. 4；
Fig. 7 is the mounting structure schematic diagram of the back-moving spring in Fig. 6；
Fig. 8 is back-moving spring mounting structure three-dimensional view in Fig. 7；
Fig. 9 is the structural representation of spring fixing pipe in Fig. 8；
Figure 10 is the structural representation that gear shaft is lifted in Fig. 8；
Figure 11 is the structural representation of the safety tongs fixed seat in the embodiment of the present invention；
Figure 12 is the structural representation of the safety tongs in the embodiment of the present invention；
The side view of safety tongs in Figure 13 Figure 12；
The topology view removed after pedestal of safety tongs in Figure 14 Figure 12；
Figure 15 is the not operating preceding structural representation of the safety tongs in the embodiment of the present invention；
Figure 16 is the structural representation in the safety tongs braking procedure in the embodiment of the present invention；
Figure 17 is the structural representation after the safe clamp brake in the embodiment of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the present invention can be mutually combined.
In one embodiment of elevator emergency brake device of the invention as shown in Fig. 1 to Figure 17, the elevator emergency system
Dynamic device includes elevator lower beam 10, and the both sides of elevator lower beam 10 are separately installed with the safety tongs 20 coordinated with cage guide, elevator
The link gear for driving the safety tongs 20 of the both sides of elevator lower beam 10 to be synchronized with the movement, the gear are also equipped with underbeam 10
Structure includes fixed plate 31, universal driving shaft 32 and rocking arm 33, and two fixed plates 31 are fixed on the both sides of elevator lower beam 10 respectively, Gu
Fixed board 31 is provided with the mounting hole 311 for being used for installing universal driving shaft 32, and fixed plate 31 is stretched out and with shaking in the both ends of universal driving shaft 32 respectively
Arm 33 is fixedly linked, and the middle part of rocking arm 33 is fixedly linked with universal driving shaft 32 and rocking arm 33 rotates with universal driving shaft 32, and the one of rocking arm 33
End is connected by connecting rod 331 with safety tongs 20, and the other end of rocking arm 33 is provided with to be carried for what the steel wire rope with limiter of speed was connected
Draw gear shaft 34；Lifting gear shaft 34 is provided with restoring board 341, and the restoring board, which is provided with, resets through hole 342, and resetting through hole 342 can
Think slotted hole, lift and the steel wire connecting hole 343 being connected with the steel wire rope of limiter is additionally provided with gear shaft 34, in the fixed plate
Spring fixed seat 35 is also equipped with, is provided through resetting the mandrel 36 of through hole 342 on spring fixed seat 35, is arranged with mandrel 36
Two back-moving springs 37 for being located at the both sides of restoring board 341 respectively, one end of back-moving spring 37 contradict on restoring board 341, resetted
The other end of spring 37 is contradicted on spring fixed seat 35.Elevator emergency brake device in the embodiment, universal driving shaft both ends
Two swing arms are fixedly linked by universal driving shaft, and one end of one of swing arm is connected by lifting gear shaft with speed limiter wire rope,
When lift car needs brake hard, limiter of speed drives swing arm to rotate by rope belt, lifting gear shaft, and elevator lower beam is another
The swing arm of side is driven by universal driving shaft, and two swing arm synchronous axial systems are prevented with driving the safety tongs synchronous braking of elevator lower beam both sides
Lift car tilts during brake hard；The back-moving spring on mandrel after brake release on spring fixed seat can drive
Movable pendulum arm reset cause safety tongs unclamp guide rail, by set two back-moving springs can meet safety tongs bi-directional braking, reset
Need, the either up brake hard of lift car or the descending brake hard of lift car, can be reliable after brake release
Realize that safety tongs resets in ground.
In the above-described embodiments, the elevator emergency brake device also has following technical characteristic：
Preferably, two spring fixing pipes 38 are also arranged with mandrel 36, back-moving spring 37 is set in spring fixing pipe 38；Bullet
One end of spring fixing pipe 38 is provided with block seat 381, and for restoring board 341 between the block seat 381 of two spring fixing pipes 38, spring is solid
The other end of fixed tube 38 is provided with external screw thread；The one end of back-moving spring 37 is contradicted on block seat 381, and the other end of back-moving spring 37 contradicts
On spring fixed seat 35, spring fixing pipe 38 can move on spring fixed seat 35 along axis.It is understood that spring is consolidated
Fixed tube 38 is hollow structure, and mandrel 36 is located in the axially extending bore of spring fixing pipe 38.Preferably, as shown in Figure 7, Figure 8, bullet
Spring fixed seat 35 is provided with mounting hole, and spring fixing pipe 38 has externally threaded one end through the mounting hole on spring fixed seat 35
And be locked by double nut, so that spring fixing pipe 38 can be slided vertically in the mounting hole on spring fixed seat 35
Move and prevent spring fixing pipe 38 from deviating from by block seat, double nut.Preferably, also set between back-moving spring 37 and spring fixed seat 35
There is the back-up ring 39 for being set in spring fixing pipe 38, back-up ring side contradicts with back-moving spring, and back-up ring opposite side can be pressed on spring and consolidate
In reservation 35.Elevator emergency brake device in the embodiment, by setting spring fixed seat, mandrel, two back-moving springs, two
Individual spring fixing pipe, the restoring board 341 lifted on gear shaft 34 are folded between the block seat of two spring fixing pipes, and restoring board can be
Way moving, reset on mandrel, so that the swing arm in link gear can reliably drive safe clamp brake, reset, it is full
Sufficient swing arm bidirectional swinging, the demand resetted, reliability are high.
Preferably, universal driving shaft 32 includes the first drive shaft 321, the drive shaft 323 of connecting shaft 322 and second, the first drive shaft
321 are fixedly linked with connecting shaft 322 by sleeve 324, and the second drive shaft 323 passes through the stationary phase of sleeve 324 with connecting shaft 322
Even, it is arranged with torsion spring 35 in the first drive shaft 321 and/or the second drive shaft 322.Preferably, it is further fixed on using on universal driving shaft 32
In the wobble plate 325 of triggering microswitch 326.
Preferably, the both sides of elevator lower beam 10 are also respectively fixed with safety tongs fixed seat 30, are set in safety tongs fixed seat 30
There is the chute 301 coordinated with the sliding block 21 on safety tongs 20, further respectively have and lead on two side plates 302 of safety tongs fixed seat 30
To hole 303, the axis of guide 304 is installed in pilot hole 303, one end is arranged with the axis of guide 304 and contradicts the reset on safety tongs
Spring, safety tongs 20 horizontally slips in the presence of chute 301, the axis of guide 304 in safety tongs fixed seat 30, on side plate 302
Formed with fixed plate 31, such a structure cause safety tongs two brake block relative elevator guide rails can left and right float, avoid braking
Block contacts firmly with cage guide causes guide rail or brake block to damage.
Preferably, the top spring 305 vertical with the axis of guide 304 is additionally provided with safety tongs fixed seat 30, one end of top spring 305 is supported
Touch on the bottom plate of safety tongs fixed seat 30, the other end of top spring 305 is contradicted in the downside of safety tongs 20；Pilot hole 303 is length
Circular hole, the axis of guide 304 can fluctuate with safety tongs 20 in pilot hole 303.
Preferably, safety tongs 20 includes pedestal 22 and the first brake block 23, the second brake block 24 that are arranged on pedestal 22,
The side of pedestal 22 is fixed with sliding block 21；The side away from the second brake block 24 is provided with detent recess on first brake block 23
2301, the position relative with the opening direction of detent recess 2301 is provided with positioning cylinder 25 on pedestal 22, is installed on positioning cylinder 25
There is rotatable braked wheel 26, braked wheel 26 includes cam 261, off-centre operation wheel 262 setting up and down and be fixedly linked, off-centre operation
The outer of wheel 262 coordinates to drive the first brake block 23 to be moved to the second brake block 24 with detent recess 2301, the base of cam 261
Radius of circle is more than or equal to the radius of off-centre operation wheel 262, and cam 261 may pass through the first brake block 23 and be pressed on cage guide,
The drive shaft 263 for being rotated with driving braked wheel 26 is additionally provided with braked wheel 26.Safety tongs in the embodiment, pass through setting
Braked wheel with off-centre operation wheel and cam, the base radius of cam is more than or equal to the radius of off-centre operation wheel and cam may pass through the
One brake block is pressed on cage guide, and when elevator emergency occurs and needs brake hard, limiter can pass through steel wire rope
Being connected with lifting gear shaft 34 drives swing arm 33 to rotate, while swing arm 33 drives the swing arm of elevator lower beam opposite side by universal driving shaft 32
33 synchronous axial systems, the other end of swing arm 33 are connected by connecting rod 331 with drive shaft 263, drive shaft driving braked wheel rotation, braking
The outer of cam on wheel is pressed on cage guide first, because lift car still relative elevator guide rail moves, cage guide
Between cam frictional force band moving cam be rotated further, braked wheel be rotated further during because cage guide will not move, it is convex
Relative motion between wheel and cage guide causes positioning cylinder to be moved with moving base to the direction of the first brake block, pedestal movement
The opposite side of the second brake block and cage guide is driven to compress rear pedestal and cage guide phase on the direction of vertical lift guide rail
To static, now cam compresses with cage guide, and the first brake block does not contact with cage guide, cage guide fortune relative with cam
It is dynamic；Cage guide or drive shaft continue to drive cam rotation, and the off-centre operation wheel on braked wheel and the braking on the first brake block are recessed
Groove coordinates the first brake block of driving mobile to cage guide and is pressed on cage guide, thus the first brake block and the second braking
Block clamps cage guide so that lift car stops on cage guide, realizes brake hard；The lift brake safety clamp
Cam and off-centre operation wheel on braked wheel, it can be rotated by the frictional force drives braked wheel between cam and cage guide, then
By off-centre operation wheel drive the first brake block gripping elevator guide rails, realize that braking is driven using the dynamic friction between cam and cage guide
Dynamic the first brake block, the second brake block when braked wheel stops operating clamp cage guide, and such a structure can effectively prevent
Only safety tongs fails, and reliability is high.
Preferably, in one embodiment of the invention, the center of circle of the basic circle of cam 261, off-centre operation wheel 262 the center of circle,
The center of circle of positioning cylinder 25 is located along the same line；The outer contour of cam 261 is on the basic circle center of circle of cam 261 and off-centre operation
The circle center line connecting of wheel 262 symmetrically to realize bi-directional braking, or cam 261 outer contour by cam 261 the basic circle center of circle with partially
The circle center line connecting of heart circle wheel 262 is divided into descending braking curve and up braking curve.Specifically, by by cam 261
Outer contour is set to off in the symmetrical form of center line so that braked wheel 26, which rotates clockwise or counterclockwise, can drive base
Seat, the first brake block are moved by the first brake block, the second brake block gripping elevator guide rails, can realize elevator car as needed
The up brake hard in railway carriage or compartment or the descending brake hard of lift car；In another implementation, or cam 261 outer contour by cam
The 261 basic circle center of circle and the circle center line connecting of off-centre operation wheel 262 are divided into descending braking curve and up braking curve, it is specific and
Speech, existing elevator safety gear can only realize the descending braking of lift car, and the lift brake safety clamp in the application passes through to cam
The design of 261 outline curves, can realize the descending braking of lift car, and and can realizes the up braking of lift car；Preferably,
Descending braking curve and descending braking curve symmetric design on cam 261, can also be according to electricity to reduce processing and manufacturing cost
The difference of brake force separately designs the descending braking curve of cam 261 and up in the descending braking of terraced car, up braking procedure
Braking curve；It is understood that it can also only set descending braking curve or up braking bent on the outline of cam 261
Line, the outer contour of the other parts of cam 261 can simplify to reduce processing cost as needed, in the elevator brake of the application
In safety tongs, only needing the base radius of cam 261 can wear more than or equal to the radius of off-centre operation wheel 262 and a part for cam 261
Cross the first brake block 23 and be pressed on the descending braking that lift car is can be achieved with cage guide or up braking.
Preferably, in one embodiment of the invention, it is inclined to include the first off-centre operation wheel 2621, second for off-centre operation wheel 262
Heart circle wheel 2622, the first off-centre operation wheel 2621, cam 261, the second off-centre operation wheel 2622 are set gradually from top to bottom, the first braking
Block 23 is provided with the first driving plate 231 and the second driving plate 232, and the first driving plate 231 is provided with matches somebody with somebody with the first off-centre operation wheel 2621
The detent recess 2301 of conjunction, the second driving plate 232 are provided with the detent recess coordinated with the second off-centre operation wheel 2622, the first driving
It may pass through cavity 233 formed with the cavity 233 passed through for cam 261, cam 261 between the driving plate 232 of plate 231 and second and compress
On cage guide, pass through the both sides setting off-centre operation wheel above and below cam so that the lift brake safety clamp is in braking procedure
Power transmission is steady, balanced, avoids the occurrence of clamping stagnation, and reliability is high.In such an embodiment, it is preferable the braking in the embodiment
Wheel 26 is molded by same revolving body turnery processing, i.e., the first off-centre operation wheel 2621, cam 261, second on the braked wheel 26 are inclined
Heart circle wheel 2622 is integral type structure, and the braked wheel 26 is fixed on positioning cylinder 25 by the circular hole at middle part and can positioned
Rotated on cylinder 25.Preferably, in this embodiment, the first off-centre operation wheel overlaps and radius phase with the axis of the second off-centre operation wheel
Deng the radius of detent recess is identical with the radius of the first off-centre operation wheel, the second off-centre operation wheel, so that the first driving plate,
The motion of two driving plates is synchronous, the first brake block stable movement.In another example of the application, the first off-centre operation wheel and second
The axis of off-centre operation wheel overlaps and radius is different, the radius of detent recess and the radius of the first off-centre operation wheel in the first driving plate
Identical, the radius of the detent recess in the second driving plate is identical with the radius of the second off-centre operation wheel, so that radius is less
Off-centre operation wheel coordinates driving the first brake block motion with the detent recess in corresponding driving plate first, then larger by radius again
Off-centre operation wheel and detent recess in corresponding driving plate coordinate driving the first brake block motion, thus can pass through two radiuses
Different off-centre operation wheels controls the motion of the first brake block different phase respectively, can be controlled by the design to off-centre operation wheel radius
Translational speed, the clamp speeds of different phase in first brake block braking procedure, meet different elevator emergency brake control need
Will.
Preferably, in one embodiment of the invention, drive shaft 263 is fixed on the first off-centre operation wheel 2621, positioning
The upper surface of cylinder 25 is concordant with the upper surface of the first off-centre operation wheel 2621, is further fixed on extending on the upper surface of positioning cylinder 25
It is reliable to thereby guarantee that braked wheel is fixed to prevent braked wheel 26 from moving up for tabletting 251 on to the first off-centre operation wheel 2621.
Preferably, in one embodiment of the invention, disk spring 27 is further fixed on pedestal 22, disk spring 27
One end is fixedly linked with the fixed plate 221 on pedestal 22, and the other end of disk spring 27 is fixedly linked with the second brake block 24, by
This make it that the second brake block is fixed reliable on pedestal, and disk spring, which is also possible that between the second brake block and pedestal, to be had
Relative movement, avoid the second brake block from being contacted firmly with cage guide and cause guide rail or brake block to damage.Preferably, disk spring 27
Quantity be two, thus can avoid the second brake block swing so that the second brake block is contacted with cage guide reliably, when compressing
Stress equalization.Preferably, two guide plates 222 are additionally provided with pedestal 22, the second brake block 23 can be along the axis of disk spring 27
Moved between two guide plates 222, so that it is the second brake block stable movement, reliable, will not be in the drive of cage guide
Lower skew, swing.
Preferably, in one embodiment of the invention, the downside of the second driving plate 232 offers two necks 2321, blocks
Be fixed with the steel band 28 for being wrapped in the outer of the second off-centre operation wheel 2622 in groove 2321, steel band 28 be used to preventing the first brake block 23 with
Braked wheel 26 departs from, and the first brake block 23 in the embodiment can move on pedestal 22 along the axis of disk spring 27 also may be used
To be moved perpendicular to the axis of disk spring, it is of course also possible to set the guide frame of similar second brake block to cause the first system
Motion block can only move along the axis of disk spring.
The structural representation of each working condition of lift brake safety clamp of the embodiment of the present invention as shown in Figure 15 to Figure 17,
Figure 15 is the structural representation when lift brake safety clamp is not operating, and now cam, the first brake block, the second brake block be not
With guide rail contact, the lift brake safety clamp moves up and down along cage guide；Figure 16 is the lift brake safety clamp braking procedure
In structural representation, now the side of the second brake block and cage guide contradict, the opposite side of cam and cage guide contradicts
And the brake block of off-centre operation wheel drive first moves to cage guide, the lift brake safety clamp still moves up and down along cage guide；
Figure 17 is the structural representation after lift brake safety clamp braking, and now cam separates with cage guide, the first brake block, the
Two brake block are clamped in the both sides of cage guide respectively, and the lift brake safety clamp relative elevator guide rail is without up and down motion, elevator
Car stops moving up and down on cage guide, realizes brake hard.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of elevator emergency brake device, including elevator lower beam, the both sides of the elevator lower beam are separately installed with leads with elevator
The safety tongs that rail coordinates, the link gear for driving the safety tongs to be synchronized with the movement is also equipped with the elevator lower beam, its
It is characterised by, the link gear includes fixed plate, universal driving shaft and rocking arm, and two fixed plates are fixed on described respectively
The both sides of elevator lower beam, the universal driving shaft are arranged in the fixed plate and can rotated, and the both ends of the universal driving shaft are stretched respectively
Go out the fixed plate and be fixedly linked with the rocking arm, the middle part of the rocking arm is fixedly linked and with described with the universal driving shaft
Moving axis rotates, and one end of the rocking arm is connected with safety tongs, and the other end of the rocking arm is provided with for the steel wire with limiter of speed
The connected lifting gear shaft of rope；The lifting gear shaft is provided with restoring board, and the restoring board, which is provided with, resets through hole, the fixed plate
On be also equipped with spring fixed seat, the mandrel of the reset through hole is provided through on the spring fixed seat, is covered on the mandrel
It is located at the back-moving spring of the restoring board both sides respectively provided with two, one end of the back-moving spring is contradicted in the restoring board
On, the other end of the back-moving spring is contradicted on the spring fixed seat.
2. elevator emergency brake device according to claim 1, it is characterised in that：Two bullets are also arranged with the mandrel
Spring fixing pipe, the back-moving spring are set in the spring fixing pipe；One end of the spring fixing pipe is provided with block seat, described
For restoring board between the block seat of two spring fixing pipes, the other end of the spring fixing pipe is provided with external screw thread；
Described back-moving spring one end is contradicted on the block seat, and the other end of the back-moving spring is contradicted on the spring fixed seat,
The spring fixing pipe can move on the spring fixed seat along axis.
3. elevator emergency brake device according to claim 2, it is characterised in that：Also distinguish the both sides of the elevator lower beam
Safety tongs fixed seat is fixed with, the safety tongs fixed seat is provided with the chute coordinated with the sliding block on the safety tongs, described
Pilot hole is further respectively had on two side plates of safety tongs fixed seat, the axis of guide, the safety tongs are installed in the pilot hole
Horizontally slipped in the presence of the chute, the axis of guide in the safety tongs fixed seat；Formed on the side plate
State fixed plate.
4. elevator emergency brake device according to claim 3, it is characterised in that：It is additionally provided with the safety tongs fixed seat
The top spring vertical with the axis of guide, one end of the top spring are contradicted on the bottom plate of the safety tongs fixed seat, the top spring
The other end contradict on the safety tongs；The pilot hole is slotted hole, and the axis of guide can be with the safety tongs described
Fluctuated in pilot hole.
5. elevator emergency brake device according to claim 4, it is characterised in that the safety tongs includes pedestal and setting
The first brake block, the second brake block on the pedestal, the side of the pedestal are fixed with the sliding block；First braking
The side away from second brake block is provided with detent recess on block, relative with the detent recess opening direction on the pedestal
Position be provided with positioning cylinder, rotatable braked wheel is installed, the braked wheel includes setting up and down on the positioning cylinder
And cam, the off-centre operation wheel being fixedly linked, the outer of the off-centre operation wheel coordinate with the detent recess to drive described first
Brake block moves to second brake block, and the base radius of the cam is more than or equal to the radius of the off-centre operation wheel, and institute
State cam and may pass through first brake block and be pressed on cage guide, be additionally provided with the braked wheel for and the driving system
The drive shaft of wheel rotation.
6. elevator emergency brake device according to claim 6, it is characterised in that：The center of circle of the basic circle of the cam, institute
State the center of circle of off-centre operation wheel, the center of circle of the positioning cylinder is located along the same line；The outer contour of the cam is on described
The circle center line connecting of the basic circle center of circle of cam and the off-centre operation wheel is symmetrically to realize bi-directional braking, or the outer contour of the cam
Up braking curve and descending braking curve are divided into by the basic circle center of circle of the cam and the circle center line connecting of the off-centre operation wheel.
7. elevator emergency brake device according to claim 5, it is characterised in that：It is eccentric that the off-centre operation wheel includes first
Circle wheel, the second off-centre operation wheel, the first off-centre operation wheel, the cam, the second off-centre operation wheel are set gradually from top to bottom,
First brake block is provided with the first driving plate and the second driving plate, and first driving plate is provided with and first off-centre operation
The detent recess coordinated is taken turns, it is recessed that second driving plate is provided with the braking coordinated with the second off-centre operation wheel
Groove, it can be worn formed with the cavity passed through for the cam, the cam between first driving plate and second driving plate
The cavity is crossed to be pressed on cage guide.
8. elevator emergency brake device according to claim 7, it is characterised in that：The drive shaft is fixed on described first
On off-centre operation wheel, the upper surface of the positioning cylinder is concordant with the upper surface of the first off-centre operation wheel, the positioning cylinder
The tabletting for being further fixed on extending on the first off-centre operation wheel on upper surface is to prevent the braked wheel from moving up.
9. elevator emergency brake device according to claim 7, it is characterised in that：Dish-shaped bullet is further fixed on the pedestal
Spring, one end of the disk spring are fixedly linked with the fixed plate on the pedestal, the other end of the disk spring with it is described
Second brake block is fixedly linked.
10. elevator emergency brake device according to claim 7, it is characterised in that：Opened up on the downside of second driving plate
There are two necks, the steel band for being wrapped in the second off-centre operation wheel outer is fixed with the neck, the steel band is used to prevent
First brake block departs from the braked wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710846812.1A CN107720478A (en) | 2017-09-19 | 2017-09-19 | A kind of elevator emergency brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710846812.1A CN107720478A (en) | 2017-09-19 | 2017-09-19 | A kind of elevator emergency brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107720478A true CN107720478A (en) | 2018-02-23 |
Family
ID=61207513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710846812.1A Pending CN107720478A (en) | 2017-09-19 | 2017-09-19 | A kind of elevator emergency brake device |
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| Country | Link |
|---|---|
| CN (1) | CN107720478A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751048A (en) * | 2018-07-03 | 2018-11-06 | 意欧斯智能科技股份有限公司 | A kind of floating safety-brake mechanism |
| CN109231057A (en) * | 2018-11-15 | 2019-01-18 | 无锡星亿智能环保装备股份有限公司 | A kind of centering type brake insurance institution |
| CN109292698A (en) * | 2018-11-15 | 2019-02-01 | 无锡星亿智能环保装备股份有限公司 | A kind of combined type buoyancy braking safety device |
| CN109340279A (en) * | 2018-11-15 | 2019-02-15 | 无锡星亿智能环保装备股份有限公司 | A kind of adjustable braking safety device with pooling feature |
| CN114148856A (en) * | 2021-12-01 | 2022-03-08 | 张全立 | Elevator safety gear based on elevator safety protection and using method thereof |
| CN116424780A (en) * | 2023-06-13 | 2023-07-14 | 山西多尔晋泽煤机股份有限公司 | Movable reversed loader bottom plate convex groove |
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| EP0899231A1 (en) * | 1997-08-21 | 1999-03-03 | Aufzugstechnologie Schlosser GmbH | Double action braking device |
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| CN101941626A (en) * | 2010-09-09 | 2011-01-12 | 昆山京都电梯有限公司 | Safety tongs linkage mechanism for elevator |
| CN203624759U (en) * | 2013-12-23 | 2014-06-04 | 上海微频莱机电科技有限公司 | Bidirectional safety tongs for elevator |
| CN106698143A (en) * | 2015-11-16 | 2017-05-24 | 戈尔电梯（天津）有限公司 | Safety tong linkage device |
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| EP0899231A1 (en) * | 1997-08-21 | 1999-03-03 | Aufzugstechnologie Schlosser GmbH | Double action braking device |
| KR200252556Y1 (en) * | 2001-02-14 | 2001-11-16 | (주)도원기전 | Double acting braking apparatus for an elevator |
| CN101941626A (en) * | 2010-09-09 | 2011-01-12 | 昆山京都电梯有限公司 | Safety tongs linkage mechanism for elevator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751048A (en) * | 2018-07-03 | 2018-11-06 | 意欧斯智能科技股份有限公司 | A kind of floating safety-brake mechanism |
| CN109231057A (en) * | 2018-11-15 | 2019-01-18 | 无锡星亿智能环保装备股份有限公司 | A kind of centering type brake insurance institution |
| CN109292698A (en) * | 2018-11-15 | 2019-02-01 | 无锡星亿智能环保装备股份有限公司 | A kind of combined type buoyancy braking safety device |
| CN109340279A (en) * | 2018-11-15 | 2019-02-15 | 无锡星亿智能环保装备股份有限公司 | A kind of adjustable braking safety device with pooling feature |
| CN114148856A (en) * | 2021-12-01 | 2022-03-08 | 张全立 | Elevator safety gear based on elevator safety protection and using method thereof |
| CN116424780A (en) * | 2023-06-13 | 2023-07-14 | 山西多尔晋泽煤机股份有限公司 | Movable reversed loader bottom plate convex groove |
| CN116424780B (en) * | 2023-06-13 | 2023-08-25 | 山西多尔晋泽煤机股份有限公司 | Movable reversed loader bottom plate convex groove |
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Address after: 461000 south section of Yanan Road, Xuchang economic and Technological Development Zone, Henan Applicant after: Xiji Xunda Elevator Co., Ltd Address before: 461000 south section of Yanan Road, Xuchang economic and Technological Development Zone, Henan Applicant before: XJ SCHINDLER (XUCHANG) ELEVATOR Co.,Ltd. |