CN105236234B - Subtract stroke bidirectional automatic anti-running vehicle speed limiting system - Google Patents
Subtract stroke bidirectional automatic anti-running vehicle speed limiting system Download PDFInfo
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- CN105236234B CN105236234B CN201510692409.9A CN201510692409A CN105236234B CN 105236234 B CN105236234 B CN 105236234B CN 201510692409 A CN201510692409 A CN 201510692409A CN 105236234 B CN105236234 B CN 105236234B
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- rope sheave
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Abstract
The invention discloses one kind to subtract stroke bidirectional automatic anti-running vehicle speed limiting system, encoder is installed on the main shaft of its limiter of speed, rope sheave is assemblied on main shaft, pawl is rotatably equipped on the side of the wheel face of rope sheave, the pawl torsional spring for matching the card slot card of pawl turning ratchet wheel and ratchet is provided between pawl and rope sheave, pawl location structure is also rotatably equipped on the wheel face of rope sheave, ratchet is far from being coaxially fixedly installed disc on the wheel face of gravity drop hammer, the outer rim position of disc is laid with self-resetting switch, each self-resetting switch is on the circumference of a concentric circles of disc, the lever of each self-resetting switch stretches to inside, the free end of each lever is in respectively on the circumference of one group of concentric circles of disc, gravity drop hammer successively touches each self-resetting switch in opening process.The present invention, which is able to achieve, to be made accordingly to build the headspace and bottom space for being not required to additionally increase elevator, while not being needed in the case where increasing buffer cost, and the purpose of higher speed elevator can be used.
Description
Technical field
It is double that the safety speed-limit system more particularly to one kind that the present invention relates to a kind of for limiting elevator speed subtract stroke
To automatic anti-running vehicle speed limiting system.
Background technique
With the development of social economy and the promotion of people's levels of substance, skyscraper is more and more, the specified speed of elevator
Degree is also higher and higher, and since buffer stroke and speed are proportional, this means that elevator speed is higher, required
Buffer stroke is bigger, and the headspace and bottom space of elevator are higher, not only increases the cost of buffer, can also increase greatly
Add building difficulty, wastes construction area.
For elevator generally in 2.5m/s with descending stair speed, buffer of elevator is selected according to rated speed of lift at present.
BufferIt is to provide a kind of last elevator car safety of safeguard protection.It is mounted in the well pit of elevator,
Positioned at the underface of carriage and counterweight.When elevator is in being moved upwardly or downwardly, due toWireropeFracture, is embraced at traction frictional force
Lock brake force is insufficient orControl systemFailure and when surmounting terminal stop bottom or top layer, will be worked as a buffer by buffer,
Bottom is directly hit to avoid lift car or counterweight or is rushed to summit, and the safety of passenger and equipment are protected.
If a kind of technical solution can be provided, it is being not required to additionally increase the headspace and bottom space of elevator, while not
In the case where needing to increase buffer cost, building can be made to use the elevator of higher speed, it is tired that current this will be abolished
Border.This requires lift cars, and speed to lower when running to above buffer, and limiter of speed can be by the speed of elevator
Degree reduces.
In the prior art to have a kind of such bidirectional speed limiter, so-called bidirectional speed limiter is exactly in ascending for elevator and downlink
The limiter of speed that Shi Douneng plays a role, including pedestal are equipped with rope sheave and ratchet, the both ends of main shaft by main axis on pedestal
It is set on the base by bearing, rope sheave is assemblied on main shaft, and one end of main shaft is equipped with encoder, is arranged with steel wire on rope sheave
Rope.The diameter of ratchet is less than the diameter of rope sheave, and pawl is rotatably equipped on the wheel face of rope sheave, is provided between pawl and rope sheave
Torsional spring, torsional spring is to Pawl Torsion, so that pawl rotation has the trend matched with the card slot card of ratchet always, is in freely in pawl
When state, pawl and ratchet can be convexly equipped with a fixture block in the state of clamping, the end of pawl, and the two sides of fixture block can
With two cell wall blocks of card slot, prevent ratchet from moving in both direction clockwise and anticlockwise relative to pawl.In rope sheave
On also rotation be provided with pawl location structure, pawl location structure has a press end, which presses against on pawl, make
It obtains pawl and is in the normal condition for decontroling ratchet, there is torsional spring between pawl location structure and rope sheave, torsional spring is that pawl positions knot
Structure provides the power for compressing pawl, and pawl is made to overcome torsional spring power thereon, keeps the state separated with ratchet, also rotation fills on rope sheave
With there are two gravity drop hammer, pawl and pawl location structure are in the side of rope sheave, and two gravity drop hammers are in the other side of rope sheave.
Set-up mode of two gravity drop hammers on rope sheave is centrosymmetric mode, and the rotation point of gravity drop hammer is not located at both ends, gravity drop hammer
One end quality be tup end, smaller other end quality is hammer handle end, is set between the hammer handle end and rope sheave of a gravity drop hammer
It is equipped with compression-spring device, compression-spring device makes the tup end of gravity drop hammer be in the centre of rope sheave, in the tup portion of the gravity drop hammer
Connecting rod is connected between the hammer handle portion of another gravity drop hammer, the both ends of connecting rod are hinged with two gravity drop hammers respectively, rope sheave just
Often when rotation, under the action of compression-spring device, the tup portion of two gravity drop hammers is at the centre of rope sheave.It exceeds the speed limit in rope sheave
When operating, under the influence of centrifugal force, two gravity drop hammers can overcome the spring force of compression-spring device to open, and two tups can be turned to all
The edge of rope sheave, two hammer handles turn at the center of rope sheave.There is the trigger unit across rope sheave on pawl location structure, in weight
When the tup of power hammer turns to the outer rim of rope sheave, gravity drop hammer is to the top for pressing projection in trigger unit, so that pawl location structure gram
Take its torsional spring power rotation, pawl location structure compress pawl so that pawl continue to far from ratchet direction rotate, with turn
The increase of dynamic distance, pawl location structure can decontrol pawl, and pawl is stuck under the action of its torsional spring with ratchet, works as pawl
After location structure decontrols pawl, pawl will cross pawl location structure and keep off pawl location structure in turn, so that pawl is fixed
Bit architecture is not capable of resetting, and at this moment, pawl location structure presses pawl under the action of torsional spring power so that pawl be reliably in
The state of ratchet buckle makes it to the lasting rotation of direction rotation far from ratchet, pawl if moving pawl in this state
It will be separated with pawl location structure, pawl location structure return under the action of its torsional spring, at this moment decontrol pawl, pawl positioning
Structure will be positioned with pawl.When pawl is reliably in the state with ratchet buckle, rope sheave drives ratchet wheel by pawl.
Two sides on pedestal in rope sheave are provided with brake plate device, and pull rod, pull rod are provided on the brake plate of two brake plate devices
One end be threaded through on brake plate, the two brake plates side opposite with rope sheave be medial surface, another side be lateral surface, making
Outer lateral spring is provided on the outside of movable plate, one end of outer lateral spring presses against on the lateral surface of brake plate, outer lateral spring it is another
End presses against on the bulge loop on the end of pull rod, and the other end of pull rod joins on the wheel face of ratchet.When elevator rises, rope
It takes turns toward a direction rotation, after pawl is fastened togather with ratchet, ratchet follows rope sheave to rotate, and ratchet passes through one in rotation
A pull rod drives corresponding brake plate to press to rope sheave, realizes the braking of rope sheave, and when rising under elevator, rope sheave turns toward another direction
Dynamic, after pawl is fastened togather with ratchet, ratchet follows rope sheave to rotate, and ratchet passes through the drive pair of another pull rod in rotation
Another brake plate answered presses to rope sheave, realizes the braking of rope sheave.The hammer handle being convexly equipped on pawl in gravity drop hammer turns to rope sheave
Wheel rim when press with the hammer handle of gravity drop hammer so that pawl separates with ratchet and makes the lift of pawl location structure and ratchet pawl reset
Release link is risen, is reduced in the speed of rope sheave, after the speed of carriage lowers, gravity drop hammer can answer under the action of reseting pressuring spring
Position, at this moment the hammer handle of gravity drop hammer turns to the wheel rim of rope sheave, and pawl is separated with ratchet, and limiter of speed automatically resets.It is also set on pedestal
It is equipped with electromagnet, gravity drop hammer can be pressed when electromagnet is powered, so that gravity drop hammer opens, ratchet and pawl is allowed to be fastened togather,
The forced brake for realizing rope sheave needs manually to realize the braking of rope sheave when elevator breaks down, and at this moment, is powered to electromagnet
It can realize the braking of rope sheave.
Summary of the invention
The object of the present invention is to provide one kind to subtract stroke bidirectional automatic anti-running vehicle speed limiting system, so that limiter of speed can lead to
The mode for crossing braking rope sheave is carriage speed limit, to make accordingly to build the headspace for being not required to additionally increase elevator and bottom sky
Between, while not needing in the case where increasing buffer cost, the elevator of higher speed can be used.
In order to achieve the goal above, the present invention adopts the following technical scheme: one kind subtracts stroke bidirectional automatic anti-running vehicle speed limit
System, including subtract journey controller, limiter of speed, carriage top set position detection unit, carriage bottom set position detection unit, the limit
Fast device includes pedestal, is equipped with rope sheave and ratchet by main axis on pedestal, and the both ends of main shaft are arranged by bearing in pedestal
On, rope sheave is assemblied on main shaft, is equipped with encoder on main shaft, and the two sides of rope sheave are provided with brake plate device on pedestal, is restricted
It is rotatably equipped with pawl on the side of the wheel face of wheel, the card slot for making pawl turning ratchet wheel and ratchet is provided between pawl and rope sheave
Block the pawl torsional spring matched, pawl location structure is also rotatably equipped on the wheel face of rope sheave, between pawl location structure and rope sheave
It is provided with positioning torsional spring, the press end of pawl location structure and pawl spring press cooperate, and the other side of rope sheave wheel face also rotates
Assembly is additionally provided with the electromagnet that press gravity drop hammer opens gravity drop hammer after powered up, spine there are two gravity drop hammer on pedestal
The top when the tup of gravity drop hammer turns to the outer rim of rope sheave with power hammer press-fit is convexly equipped in the trigger unit of pawl location structure
Head is pressed with the hammer handle of gravity drop hammer so that pawl and spine when being convexly equipped on pawl in the wheel rim of the hammer handle steering rope sheave of gravity drop hammer
Wheel separates and makes the lifting release link of pawl location structure and ratchet pawl reset, and the ratchet is far from same on the wheel face of gravity drop hammer
Axis is fixedly installed disc, and the outer rim position of disc is laid with Self-resetting speed-limiting switch, and each Self-resetting speed-limiting switch is in dish
On the circumference of one concentric circles of disk, the lever of each Self-resetting speed-limiting switch stretches to inside, and the free end of each lever is in respectively
On the circumference of one group of concentric circles of disc, gravity drop hammer successively touches each Self-resetting speed-limiting switch, the volume in opening process
Code device is used to be connected with the transmission of elevator master control system, and elevator master control system is connected with magnet control；Carriage top set position
Detection unit is installed at the top of elevator shaft at rate controlling position, and carriage bottom set position detection unit is installed in the control of elevator shaft bottom
At fast position；The signal output end connection of carriage top set position detection unit subtracts the carriage top set signal input of journey controller
End, the signal output end connection of carriage bottom set position detection unit subtract the carriage bottom set signal input part of journey controller, runback
The signal output end connection of position speed-limiting switch subtracts the carriage Control for Speed Limitation signal input part of journey controller, subtracts journey controller
Brake signal output end is used to connect the brake signal input terminal of elevator master control system.
The disc is sheet ring body, and fixed calvus is radially laid on the inner hole wall of disc, and fixed calvus passes through spiral shell
Nail is fixed on disc.
The Self-resetting speed-limiting switch is fixed on disc by connection sheet, and each connection sheet radially extends and and disc
It is wholely set.
The Self-resetting speed-limiting switch is connected to the carriage Control for Speed Limitation signal input part for subtracting journey controller.
The carriage top set position detection unit is switched using first stroke, and carriage bottom set position detection unit is using the
Two travel switches, first stroke switch are mounted on the well enclosure of top, and lift car outer wall corresponding position/be installed with is for the
What one stroke switch cooperation was bumped against hits bow；Second stroke switch is mounted on the well enclosure of bottom, lift car outer wall corresponding position
It is installed with and cooperates what is bumped against to hit bow for switching with second stroke.
The journey controller that subtracts is using microcontroller, and the brake signal output end of microcontroller is for connecting elevator master control
Brake control signal input in system.
The present invention by the speed of carriage Control for Speed Limitation unit real-time monitoring carriage, when carriage top set position detection unit or
It when carriage bottom set position detection unit detects that carriage reaches the position, outputs signal to and subtracts journey controller, subtract stroke control
After device receives the signal, judge whether current limiter of speed acts, if limiter of speed acts at this time, subtracts journey controller and export at once
Signal gives elevator master control system, controls elevator brake, keeps elevator out of service before reaching buffer, so that realizing makes accordingly
Building is not required to additionally increase the headspace and bottom space of elevator, while not needing in the case where increasing buffer cost, just
The purpose of higher speed elevator can be used.Disc is provided on ratchet of the invention, the outer rim position of disc is laid with Self-resetting
Speed-limiting switch, each Self-resetting speed-limiting switch are on the circumference of a concentric circles of disc, the thick stick of each Self-resetting speed-limiting switch
Bar stretches to inside, and the free end of each lever is in respectively on the circumference of one group of concentric circles of disc, and gravity drop hammer is in opening process
Each Self-resetting speed-limiting switch is successively touched, after touching Self-resetting speed-limiting switch, Self-resetting speed-limiting switch will export letter
Number to being subtracted journey controller, subtracts after journey controller receives the signal, judge whether current car Control for Speed Limitation unit acts, such as
Carriage Control for Speed Limitation unit acts fruit at this time, subtracts journey controller and outputs signal to elevator master control system at once, controls elevator system
It is dynamic, keep elevator out of service before reaching buffer, to realize that the top for making corresponding building be not required to additionally increase elevator is empty
Between and bottom space, while do not need increase buffer cost in the case where, can using higher speed elevator purpose.
Detailed description of the invention
Fig. 1 is the structural block diagram of the embodiment of the present invention；
Fig. 2 is the circuit diagram of the embodiment of the present invention；
Fig. 3 is the corresponding assembling schematic diagram of carriage and the first, second travel switch shown in Fig. 2；
Fig. 4 is the overall structure diagram of the limiter of speed of the embodiment of the present invention；
Fig. 5 is the assembling schematic diagram of rope sheave in Fig. 4, ratchet and disc；
Fig. 6 is the left view of Fig. 5；
Fig. 7 is the right view of Fig. 5；
Fig. 8 is the explosive view of the rope sheave and ratchet in Fig. 4；
Fig. 9 is the automatic anti-running vehicle control figure of elevator device applied by the embodiment of the present invention.
Specific embodiment
A kind of embodiment subtracting stroke bidirectional automatic anti-running vehicle speed limiting system, in Fig. 1~8, including subtract journey controller,
Limiter of speed, carriage top set position detection unit, carriage bottom set position detection unit, limiter of speed here are bidirectional speed limiter, institute
Meaning bidirectional speed limiter is exactly the limiter of speed that can be played a role in ascending for elevator and downlink, is filled on pedestal 1 by main axis
Equipped with rope sheave 2 and ratchet 3, the both ends of main shaft are arranged on pedestal 1 by bearing, and 2 rotation stop of rope sheave is assemblied on main shaft, main shaft
One end is equipped with encoder, is arranged with wirerope on rope sheave 2.The diameter of ratchet 3 is less than the diameter of rope sheave 2, in the wheel face of rope sheave 2
On be rotatably equipped with pawl 4, torsional spring is provided between pawl 4 and rope sheave 2, torsional spring gives pawl 4 torsion so that pawl 4 rotation begin
There is the trend matched with the card slot card of ratchet 3 eventually, when pawl 4 is in free state, pawl 4 and ratchet 3 can be in cards
Tight state, also rotation is provided with pawl location structure 6 on rope sheave 2, and pawl location structure 6 has a press end, the top
Pressure side presses against on pawl 4, so that pawl 4 is in the normal condition for decontroling ratchet 3, has between pawl location structure 6 and rope sheave 2
There is a torsional spring, torsional spring is that pawl location structure 6 provides the power for compressing pawl 4, and pawl 4 is made to overcome torsional spring power thereon, is kept and spine
3 isolated states are taken turns, going back rolling assembling on rope sheave 2, there are two gravity drop hammers 5, and pawl 4 and pawl location structure 6 are in rope sheave 2
Side, two gravity drop hammers 5 are in the other side of rope sheave 2.Set-up mode of two gravity drop hammers 5 on rope sheave 2 is central symmetry
Mode, the rotation point of gravity drop hammer 5 is not located at both ends, and one end quality of gravity drop hammer 5 is tup end, and other end quality is smaller
For hammer handle end, it is provided with compression-spring device 11 between the hammer handle end and rope sheave 2 of a gravity drop hammer 5, compression-spring device 11 makes gravity drop hammer 5
Tup end be in the centre of rope sheave 2, connect between the tup portion of the gravity drop hammer 5 and the hammer handle portion of another gravity drop hammer 5
It is connected to connecting rod 10, the both ends of connecting rod 10 are hinged with two gravity drop hammers 5 respectively, in 2 normal rotation of rope sheave, in compression-spring device 11
Under effect, the tup portion of two gravity drop hammers 5 is at the centre of rope sheave 2.In 2 overspeed operation of rope sheave, in centrifugal force
Under effect, two gravity drop hammers 5 can overcome the spring force of compression-spring device 11 to open, and two tups can all turn to the edge of rope sheave 2,
Two hammer handles turn at the center of rope sheave 2.There is the trigger unit across rope sheave 2 on pawl location structure 6, in the hammer of gravity drop hammer 5
When head turns to the outer rim of rope sheave 2, the top of projection in 5 pairs of gravity drop hammer press trigger units, so that pawl location structure 6 overcomes its torsion
The power of spring rotates, and pawl location structure 6 compresses pawl 4, so that pawl 4 continues to rotate to the direction far from ratchet 3, with rotation
The increase of distance, pawl location structure 6 can decontrol pawl 4, and pawl 4 is stuck under the action of its torsional spring with ratchet 3, work as spine
After pawl location structure 6 decontrols pawl 4, pawl 4 will cross pawl location structure 6 and keep off pawl location structure 6 in turn, so that
Pawl location structure 6 is not capable of resetting, and at this moment, pawl location structure 6 presses pawl 4 under the action of torsional spring power, so that pawl 4 can
That leans on is in the state buckled with ratchet 3.In this state, if to contact the buckle between pawl 4 and ratchet 3.So that
Pawl 4 and pawl location structure 6 reply mutual press, when so that pawl 4 being maintained at the state isolated with ratchet 3, so that it may remove
Pawl 4 makes it to the lasting rotation of direction rotation far from ratchet 3, and pawl 4 will be separated with pawl location structure 6, and pawl is fixed
At this moment return under the action of its torsional spring of bit architecture 6 decontrols pawl 4, pawl location structure 6 will be positioned with pawl 4, and the two is replied
To original state.The two sides of rope sheave 2 are provided with brake plate device on pedestal 1, are all provided on the brake plate of two brake plate devices
It is equipped with pull rod, one end of pull rod is threaded through on brake plate, and the two brake plates side opposite with rope sheave 2 is medial surface, another side
Face is lateral surface, and outer lateral spring is provided on the outside of brake plate, and one end of outer lateral spring presses against on the lateral surface of brake plate,
The other end of outer lateral spring presses against on the bulge loop on the end of pull rod, and the other end of pull rod joins on the wheel face of ratchet 3.
When elevator rises, rope sheave 2 is rotated toward a direction, and after pawl 4 is fastened togather with ratchet 3, ratchet 3 follows 2 turns of rope sheave
Dynamic, ratchet 3 drives corresponding brake plate to press to rope sheave 2 in rotation by a pull rod, the braking of rope sheave 2 is realized, in elevator
At lower liter, rope sheave 2 is rotated toward another direction, and after pawl 4 is fastened togather with ratchet 3, ratchet 3 follows rope sheave 2 to rotate, spine
Wheel 3 drives another corresponding brake plate to press to rope sheave 2 in rotation by another pull rod, realizes the braking of rope sheave 2.
It is convexly equipped with lifting release link 7 on pawl 4, is lifted release link 7 perpendicular to the wheel face of rope sheave 2, rope sheave 2 here is
Wheel hub dress, is just having wheel rim, is there is core wheel, is linked to be an entirety by spoke between core wheel and wheel rim, is lifted release link 7 by two
Passed through between spoke, offer functional hole 9 on the hammer handle of gravity drop hammer 5, lifting release link 7 by after being passed through between two spokes again
By being passed through in functional hole 9.It is fixed with press wheel 8 by being threaded through helicitic texture in functional hole 9 on the hammer handle of gravity drop hammer 5, when
When gravity drop hammer 5 resets, that is, when the hammer handle of gravity drop hammer 5 turns to the wheel rim of rope sheave 2, press wheel 8 can press lifting release link
7, that is, pawl 4 is driven to make its to the lasting rotation of direction rotation far from ratchet 3, pawl 4 will divide with pawl location structure 6
From at this moment return under the action of its torsional spring of pawl location structure 6 decontrols pawl 4, pawl location structure 6 will be determined with pawl 4
Position, the two are returned to original state, realize automatically reseting for pawl 4.
Since lifting release link 7 is the functional hole 9 on the hammer handle of gravity drop hammer 5, during the motion, it is lifted release link
7 can move relative to the hammer handle of gravity drop hammer 5, so the evacuation part that functional hole 9 needs to have evacuation lifting release link 7, evacuation
Part can make lifting release link 7 move freely relative to gravity drop hammer 5.
Disc 12 is coaxially fixedly installed on wheel face of the ratchet 3 far from gravity drop hammer 5, disc 12 is sheet ring body, disc
Fixed calvus 16 is radially laid on 12 inner hole wall, fixed calvus 16 is fixed by screws on disc.The outer rim cloth of disc 7
Equipped with connection sheet 13, connection sheet 13 is wholely set with disc 12, and connection sheet 13 is coplanar with disc 12, in each connection sheet 13
It is fixed with Self-resetting speed-limiting switch 14, each Self-resetting speed-limiting switch 14 is on a circumference, this circumference is disc 12
One concentric circles, the lever 15 of each Self-resetting speed-limiting switch 14 stretch to inside, the free end of each lever 15 be in respectively one group it is same
On the circumference of heart circle, this group of concentric circles is the concentric circles of disc, and gravity drop hammer successively touches each runback in opening process
Position speed-limiting switch 14, lever is long first to be touched, and is touched after lever is short.
Electromagnet is additionally provided on pedestal 1, after powered up, electromagnet can press gravity drop hammer, so that two gravity drop hammers open,
Namely make the heavier tup of gravity drop hammer turn to the outer rim of rope sheave, realizes the forced brake of rope sheave.Fig. 9 is the present embodiment institute
The automatic anti-running vehicle control figure of the elevator device of application, when elevator is stopped, since traction caused by overloading is insufficient；Overload
Caused brake force is insufficient；Elevator maintenance not in time caused by steel rope abrasion or greasy dirt, cause traction machine insufficient；Or elevator dimension
Shield not in time caused by brake pad wear it is excessive, cause brake force deficiency etc. a variety of causes, it may appear that the phenomenon that car slipping, car slipping
When all occurring from elevator and stop, be mounted on this when the encoder of one end of main shaft with can be to elevator master control system
Signal is transmitted, it is, the signal that encoder just has car slipping is transferred to elevator master when main axis meets car slipping condition
Control system, elevator master control system are connected with magnet control, slip what elevator master control system received that encoder transmits
After vehicle signal, electromagnet energization will be controlled, the forced brake of rope sheave is realized, realizes the appearance of anti-slip phenomenon automatically.
As shown in connection with fig. 1, the signal output end connection of Self-resetting speed-limiting switch 14 subtracts the carriage speed limit control of journey controller
Signal input part processed, the brake signal output end for subtracting journey controller are used to connect the brake signal input of elevator master control system
End.Carriage top set position detection unit is installed at the top of elevator shaft at rate controlling position, the installing of carriage bottom set position detection unit
At the rate controlling position of elevator shaft bottom, well headroom buffer bottom surface, elevator are not higher than at the top of elevator shaft at rate controlling position
It is not less than shaft bottom buffer top surface at shaft bottom rate controlling position；The signal output end of carriage top set position detection unit connects
The carriage top set signal input part for subtracting journey controller is connect, the signal output end connection of carriage bottom set position detection unit subtracts stroke
The carriage bottom set signal input part of controller.
It is illustrated in figure 2 the circuit diagram provided by the invention for subtracting stroke bidirectional automatic anti-running vehicle speed limiting system:
The journey controller that subtracts is using microcontroller U1, and microcontroller U1 is using model STM32F103R8T6.
It is UKT Self-resetting speed-limiting switch, peace that the limiter of speed, which uses Self-resetting speed-limiting switch U2, Self-resetting speed-limiting switch U2,
On elevator governor, wherein mechanical switch component, that is, lever both ends of Self-resetting speed-limiting switch U2, which are connected to, subtracts stroke control
Between the J1-3 pin and J1com pin of device U1 processed, the mechanical switch component one of Self-resetting speed-limiting switch U2 is acted, and subtracts stroke control
The J1-3 pin of device U1 processed just captures level change information, to know that car speed has been more than the buffer volume prestored at this time
Constant speed degree.
The carriage top set position detection unit uses first stroke switch S1, and carriage bottom set position detection unit uses
Second stroke switch S2；First stroke switch S1 is mounted on the well enclosure of top, and the installing of lift car outer wall corresponding position is useful
In with first stroke switch S1 cooperation bump against hit bow；Second stroke switch S2 is mounted on the well enclosure of bottom, outside lift car
Wall corresponding position is installed with for hitting bow with what second stroke switch S2 cooperation was bumped against.
As shown in figure 3, first stroke switch S1 is mounted on the well enclosure at the top of elevator shaft, and it is not higher than well headroom
The bottom surface of buffer, second stroke switch S2 are mounted on the well enclosure of elevator shaft bottom, and are buffered not less than shaft bottom
The top surface of device, first stroke switch S1, second stroke switch S2 are installed on same perpendicular on the vertical line of horizontal plane, carriage C1
Outer wall correspond to first stroke switch S1, the position of second stroke switch S2 be installed with a vertical integral type hit bow B1, hit
Close to the outer wall height of carriage, top, the lower part for hitting bow B1 are respectively set to car walls inclined inclined-plane bow B1 length, the
The lever of one stroke switch S1 is set as being lifted up an angle compared to horizontal plane, and the lever of second stroke switch S2 is set as
It is pressed with an angle downwards compared to horizontal plane, the angle is matched with the respective ramp for hitting the bow both ends B1 just, and first, second
The lever end of travel switch S1, S2 are provided with an idler wheel, for example hit bow B1 and rise to well headroom with carriage C1 and bump against first
When travel switch S1, the lever of first stroke switch S1 can be pushed down, when carriage is left, the lever of first stroke switch S1 can bullet
It opens, the tilt angle of lever and the idler wheel of lever end are provided to protection first stroke switch S1 in order to avoid being damaged, the second row
Cheng Kaiguan S2 is similarly.First, second travel switch S1, S2 is mechanical switch.
If Fig. 2, first stroke switch S1 are connected between the J1com pin of microcontroller U1 and J1-1 pin, the second row
Cheng Kaiguan S2 is connected between the J1com pin of microcontroller U1 and J1-2 pin, when first stroke switch S1 or second stroke
Switch S2 is not hit bow B1 when being pressed onto, and is in closed state, bends B1 when first stroke switch S1 or second stroke switch S2 is hit
It is in off-state when being pressed onto, microcontroller U1 accordingly judges according to the level change on J1-1 pin, J1-2 pin.
In the present embodiment, brake signal output end J5-3 pin, the J5com pin of microcontroller U1 is separately connected brake
Two pin of energization input of YB, powers on for control brake YB.
The first stroke switch S1, second stroke switch S2 are all made of model S3BEL-1370, brake model
DQN090。
In carriage operational process, Self-resetting speed-limiting switch U2 with elevator governor rotation real-time monitoring current car C1
Speed；When carriage C1 is run to well headroom or shaft bottom, hit that bow B1 bumps against first stroke switch S1 or second stroke is opened
When closing S2, first stroke switch S1 or second stroke switch S2 are disconnected, and microcontroller U1 judges current runback after knowing the information
The status signal of position speed-limiting switch U2 illustrates that elevator master control system is real if Self-resetting speed-limiting switch U2 is normally off at this time
Normal deceleration is showed, car speed does not exceed the desin speed of buffer at this time, and microcontroller U1 is failure to actuate (microcontroller at this time
Device U1 protection is to prevent the speed of carriage cushion at collision from dangerous situation occur beyond the desin speed of buffer)；If
Current Self-resetting speed-limiting switch U2 is disconnected, and microcontroller U1 judges that current car speed has been more than the specified speed of buffer prestored
Degree, control brake YB is powered off at once, after brake YB power-off, damper brake locking, so that it is mobile to brake carriage, so that realizing makes
Corresponding building is not required to additionally increase the headspace and bottom space of elevator, while not needing the case where increasing buffer cost
Under, it can be using the purpose of the elevator of higher speed.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. one kind subtracts stroke bidirectional automatic anti-running vehicle speed limiting system, including subtracts journey controller, limiter of speed, the inspection of carriage top set position
Survey unit, carriage bottom set position detection unit, the limiter of speed includes pedestal, on pedestal by main axis be equipped with rope sheave with
Ratchet, the diameter of ratchet are less than the diameter of rope sheave；The both ends of main shaft are set on the base by bearing, and rope sheave is assemblied in main shaft
On, encoder is installed on main shaft, the two sides of rope sheave are provided with brake plate device on pedestal, turn on the side of the wheel face of rope sheave
It is dynamic to be equipped with pawl, the pawl torsional spring for matching the card slot card of pawl turning ratchet wheel and ratchet is provided between pawl and rope sheave,
It is also rotatably equipped with pawl location structure on the wheel face of rope sheave, positioning torsional spring, spine are provided between pawl location structure and rope sheave
The press end of pawl location structure and pawl spring press cooperate, there are two the other side of rope sheave wheel face also rolling assemblings gravity drop hammer,
The electromagnet that press gravity drop hammer opens gravity drop hammer after powered up, the trigger unit of pawl location structure are additionally provided on pedestal
On be convexly equipped with when the tup of gravity drop hammer turns to the outer rim of rope sheave with the top of power hammer press-fit, be convexly equipped on pawl
It is pressed with the hammer handle of gravity drop hammer so that pawl separates with ratchet and makes pawl fixed when the hammer handle of gravity drop hammer turns to the wheel rim of rope sheave
The lifting release link of bit architecture and ratchet pawl reset, it is characterised in that: the ratchet on the wheel face of gravity drop hammer far from coaxially fixing
It is provided with disc, the outer rim position of disc is laid with Self-resetting speed-limiting switch, and each Self-resetting speed-limiting switch is in the one of disc
On the circumference of a concentric circles, the lever of each Self-resetting speed-limiting switch stretches to inside, and the free end of each lever is in disc respectively
On the circumference of one group of concentric circles, gravity drop hammer successively touches each Self-resetting speed-limiting switch in opening process, and the encoder is used
It is connected in the transmission of elevator master control system, elevator master control system is connected with magnet control；Carriage top set position testing unit
Member is installed at the top of elevator shaft at rate controlling position, and carriage bottom set position detection unit is installed in elevator shaft bottom rate controlling position
Place；The signal output end connection of carriage top set position detection unit subtracts the carriage top set signal input part of journey controller, carriage
The signal output end connection of bottom set position detection unit subtracts the carriage bottom set signal input part of journey controller, and Self-resetting speed limit is opened
The signal output end connection of pass subtracts the carriage Control for Speed Limitation signal input part of journey controller, subtracts the brake signal of journey controller
Output end is used to connect the brake signal input terminal of elevator master control system.
2. according to claim 1 subtract stroke bidirectional automatic anti-running vehicle speed limiting system, it is characterised in that: the disc is
Sheet ring body, fixed calvus is radially laid on the inner hole wall of disc, and fixed calvus is fixed by screws on disc.
3. according to claim 1 or 2 subtract stroke bidirectional automatic anti-running vehicle speed limiting system, it is characterised in that: it is described from
It resets speed-limiting switch to be fixed on disc by connection sheet, each connection sheet is radially extended and is wholely set with disc.
4. according to claim 1 subtract stroke bidirectional automatic anti-running vehicle speed limiting system, it is characterised in that: the Self-resetting
Speed-limiting switch is connected to the carriage Control for Speed Limitation signal input part for subtracting journey controller.
5. according to claim 1 or 4 subtract stroke bidirectional automatic anti-running vehicle speed limiting system, it is characterised in that: the sedan-chair
Compartment top set position detection unit is switched using first stroke, and carriage bottom set position detection unit is switched using second stroke, and first
Travel switch is mounted on the well enclosure of top, lift car outer wall corresponding position/be installed with for switching cooperation with first stroke
What is bumped against hits bow；Second stroke switch is mounted on the well enclosure of bottom, and lift car outer wall corresponding position is installed with for the
What the cooperation of two travel switches was bumped against hits bow.
6. according to claim 1 subtract stroke bidirectional automatic anti-running vehicle speed limiting system, it is characterised in that: described to subtract stroke control
Device processed uses microcontroller, and the brake signal output end of microcontroller is used to connect the brake control in elevator master control system
Signal input part processed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692409.9A CN105236234B (en) | 2015-10-23 | 2015-10-23 | Subtract stroke bidirectional automatic anti-running vehicle speed limiting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510692409.9A CN105236234B (en) | 2015-10-23 | 2015-10-23 | Subtract stroke bidirectional automatic anti-running vehicle speed limiting system |
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| CN105236234A CN105236234A (en) | 2016-01-13 |
| CN105236234B true CN105236234B (en) | 2019-03-12 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105752790B (en) * | 2016-03-24 | 2018-10-12 | 廊坊市久联机械有限公司 | A kind of elevator governor |
| CN105712150A (en) * | 2016-04-18 | 2016-06-29 | 廊坊市久联机械有限公司 | Speed-governor of elevator |
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| CN104773628A (en) * | 2015-03-31 | 2015-07-15 | 西继迅达（许昌）电梯有限公司 | Bidirectional speed governor with single brake pressing plate with pawl automatic restoring function |
| CN205257711U (en) * | 2015-10-23 | 2016-05-25 | 西继迅达（许昌）电梯有限公司 | It prevents swift current car speed -limiting system to subtract two -way automation of stroke |
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| CN101061053A (en) * | 2004-11-19 | 2007-10-24 | 东芝电梯株式会社 | Speed governor for elevator |
| CN102344065A (en) * | 2011-06-28 | 2012-02-08 | 苏州新达电扶梯部件有限公司 | Ultimate limiting device |
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| Publication number | Publication date |
|---|---|
| CN105236234A (en) | 2016-01-13 |
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Address after: 461000 south section of Yanan Road, Xuchang economic and Technological Development Zone, Henan Patentee after: Xiji Xunda Elevator Co., Ltd Address before: 461000 south section of Yanan Road, Xuchang economic and Technological Development Zone, Henan Patentee before: XJ SCHINDLER (XUCHANG) ELEVATOR Co.,Ltd. |