CN105197717B - The two-way automatic anti-running vehicle speed limiting system of single brake press plate equipped with speed monitoring component - Google Patents
The two-way automatic anti-running vehicle speed limiting system of single brake press plate equipped with speed monitoring component Download PDFInfo
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- CN105197717B CN105197717B CN201510692321.7A CN201510692321A CN105197717B CN 105197717 B CN105197717 B CN 105197717B CN 201510692321 A CN201510692321 A CN 201510692321A CN 105197717 B CN105197717 B CN 105197717B
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Abstract
The invention discloses a kind of two-way automatic anti-running vehicle speed limiting systems of single brake press plate equipped with speed monitoring component, it is rotated coaxially on the pedestal of its limiter of speed and is equipped with rope sheave and ratchet, pawl torsional spring is equipped between the pawl and rope sheave of the rotation of rope sheave side, pawl location structure is also rotatably equipped on rope sheave, the press end of pawl location structure and pawl spring press cooperate, 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
The limiter of speed that the present invention relates to a kind of for limiting elevator speed protects system, more particularly to a kind of equipped with speed
Spend the two-way automatic anti-running vehicle speed limiting system of single brake press plate of monitoring part.
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.
Limiter of speed is the critical component of elevator safety, and in the prior art have a kind of such bidirectional speed limiter, so-called double
It is exactly the limiter of speed that can be played a role in ascending for elevator and downlink, including pedestal to limiter of speed, is turned on pedestal by main shaft
Dynamic to be equipped with rope sheave and ratchet, the both ends of main shaft are set on the base by bearing, and rope sheave rotation stop is assemblied on main shaft, main shaft
One end is equipped with encoder, is arranged with wirerope on rope sheave.The diameter of ratchet is less than the diameter of rope sheave, turns on the wheel face of rope sheave
It is dynamic to be equipped with pawl, torsional spring is provided between pawl and rope sheave, torsional spring is to Pawl Torsion, so that pawl rotation has always and spine
The trend that the card slot card of wheel is matched, when pawl is in free state, pawl can be in the state of clamping with ratchet, pawl
A fixture block is convexly equipped on end, the two sides of fixture block can prevent ratchet in the clockwise and inverse time with two cell wall blocks of card slot
It is moved in needle both direction relative to pawl.Also rotation is provided with pawl location structure on rope sheave, and pawl location structure has
One press end, the press end press against on pawl so that pawl be in decontrol ratchet normal condition, pawl location structure with
There is torsional spring, torsional spring is that pawl location structure provides the power for compressing pawl, so that pawl is overcome torsional spring power thereon, guarantor between rope sheave
The state separated with ratchet is held, going back rolling assembling on rope sheave, there are two gravity drop hammers, and pawl and pawl location structure are in rope sheave
Side, 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 side
Formula, the rotation point of gravity drop hammer are not located at both ends, and one end quality of gravity drop hammer is tup end, and smaller other end quality is hammer handle
End, is provided with compression-spring device, compression-spring device is in the tup end of gravity drop hammer between the hammer handle end and rope sheave of a gravity drop hammer
The centre of rope sheave is connected with connecting rod between the tup portion of the gravity drop hammer and the hammer handle portion of another gravity drop hammer, connecting rod
Both ends are hinged with two gravity drop hammers respectively, in rope sheave normal rotation, under the action of compression-spring device, and the tup of two gravity drop hammers
Portion is at the centre of rope sheave.In rope sheave overspeed operation, under the influence of centrifugal force, two gravity drop hammers can overcome pressure spring
The spring force of device opens, and two tups can all turn to the edge of rope sheave, and two hammer handles turn at the center of rope sheave.It is fixed in pawl
There is the trigger unit across rope sheave, when the tup of gravity drop hammer turns to the outer rim of rope sheave, gravity drop hammer triggers press on bit architecture
The top of projection in portion, so that pawl location structure overcomes the power of its torsional spring to rotate, pawl location structure compresses pawl, so that spine
Pawl continues to rotate to the direction far from ratchet, and with the increase of rotation distance, pawl location structure can decontrol pawl, and pawl is at it
It is stuck under the action of torsional spring with ratchet, after pawl location structure decontrols pawl, pawl will cross pawl location structure
Pawl location structure is kept off in turn, so that pawl location structure is not capable of resetting, at this moment, work of the pawl location structure in torsional spring power
With lower press pawl, so that pawl is reliably in the state with ratchet buckle, in this state, if moving pawl makes it
To the lasting rotation of direction rotation far from ratchet, pawl will be separated with pawl location structure, and pawl location structure is in its torsional spring
Under the action of return, at this moment decontrol pawl, pawl location structure will be positioned with pawl.It is reliably in pawl and is buckled with ratchet
State when, rope sheave drives ratchet wheel by pawl.Side on pedestal in rope sheave is provided with brake plate device, brake plate
Pull rod is provided on the brake plate of device, one end of pull rod is threaded through on brake plate, and the brake plate side opposite with rope sheave is interior
Side, another side are lateral surface, outer lateral spring are provided on the outside of brake plate, one end of outer lateral spring presses against braking
On the lateral surface of plate, the other end of outer lateral spring is pressed against on the bulge loop on the end of pull rod, and the other end of pull rod is hinged on
On the wheel face of ratchet.Connecting plate is additionally provided between brake plate and ratchet, one end of connecting plate is hinged on the side of brake plate, separately
One end is hinged on the wheel face of ratchet, and ratchet, connecting plate and brake plate form crank-rocker structure.It is rotated in rope sheave toward a direction
When, after pawl is fastened togather with ratchet, ratchet follows rope sheave to rotate, and ratchet is driven by a pull rod in rotation and corresponded to
Brake plate press to rope sheave, the braking of rope sheave is realized, when rope sheave is rotated toward another direction, when pawl and ratchet are buckled in one
After rising, ratchet follows rope sheave to rotate, and ratchet drives brake plate to press to rope sheave in rotation by connecting plate, realizes the braking of rope sheave,
Pull rod is waited during exercise with connecting plate and is interfered in order to prevent, and pull rod and the hinged one end of ratchet have elongated hole, corresponding hinge
Axis, which is through in elongated hole, realizes the hinged of pull rod and ratchet, and equally, connecting plate and the hinged one end of ratchet have elongated hole, corresponding
Hinged shaft, which is through in the elongated hole, realizes the hinged of connecting plate and ratchet.In this way, when pull rod works and pulls brake plate, corresponding hinge
Axis can slide in the long hole of connecting plate, will not influence the movement of ratchet, equally, when connecting plate works and pulls brake plate, pull rod
The movement of ratchet will not be interfered.It is additionally provided with electromagnet on pedestal, gravity drop hammer can be pressed when electromagnet is powered, so that weight
Power hammer opens, and allows ratchet and pawl to be fastened togather, realizes the forced brake of rope sheave, when elevator breaks down, needs artificial
Realize the braking of rope sheave, at this moment, the braking of rope sheave can be realized by being powered to electromagnet.
Summary of the invention
The object of the present invention is to provide a kind of two-way automatic anti-running vehicle speed limits of single brake press plate equipped with speed monitoring component
System is not required to additionally increase so that limiter of speed can be carriage speed limit by way of braking rope sheave to make accordingly to build
The headspace and bottom space of elevator, while not needing in the case where increasing buffer cost, it can be using higher speed
Elevator.
In order to achieve the goal above, the present invention adopts the following technical scheme: a kind of single braking equipped with speed monitoring component
The two-way automatic anti-running vehicle speed limiting system of pressing plate, including subtract journey controller, limiter of speed, carriage top set position detection unit, carriage
Bottom set position detection unit, the limiter of speed include pedestal, are equipped with rope sheave and ratchet by main axis on pedestal, main shaft
Both ends are set on the base by bearing, and rope sheave is assemblied on main shaft, are equipped with encoder on main shaft, in the one of rope sheave on pedestal
Side is provided with brake plate device, and connecting plate is additionally provided between the brake plate and ratchet of brake plate device, and one end of connecting plate is hinged
On the side of brake plate, the other end is hinged on the wheel face of ratchet, and ratchet, connecting plate and brake plate form crank-rocker structure,
It is rotatably equipped with pawl on the side of the wheel face of rope sheave, the card for making pawl turning ratchet wheel and ratchet is provided between pawl and rope sheave
The pawl torsional spring that slot card is matched, is also rotatably equipped with pawl location structure on the wheel face of rope sheave, pawl location structure and rope sheave it
Between be provided with positioning torsional spring, the press end of pawl location structure and pawl spring press cooperation, the other side of rope sheave wheel face also turns
Dynamic assembly is additionally provided with the electromagnet that press gravity drop hammer opens gravity drop hammer after powered up there are two gravity drop hammer on pedestal,
It is convexly equipped in the trigger unit of pawl location structure when the tup of gravity drop hammer turns to the outer rim of rope sheave with power hammer press-fit
Top, be convexly equipped on pawl gravity drop hammer hammer handle turn to rope sheave wheel rim when and gravity drop hammer hammer handle press so that pawl with
Ratchet separates and makes the lifting release link of pawl location structure and ratchet pawl reset, and the ratchet is far from the wheel face of gravity drop hammer
It coaxially is fixedly installed disc, the outer rim position of disc is laid with Self-resetting speed-limiting switch, and each Self-resetting speed-limiting switch is in
On the circumference of one concentric circles of disc, the lever of each Self-resetting speed-limiting switch stretches to inside, and the free end of each lever is located respectively
On the circumference of one group of concentric circles of disc, gravity drop hammer successively touches each Self-resetting speed-limiting switch in opening process, described
Encoder 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
It sets detection unit to be installed at the top of elevator shaft at rate controlling position, carriage bottom set position detection unit is installed in elevator shaft bottom
At rate controlling 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 embodiment of the present invention；
Fig. 5 is the left view of Fig. 4；
Fig. 6 is the assembling schematic diagram of the rope sheave and ratchet and disc in Fig. 4；
Fig. 7 is the left view of Fig. 6；
Fig. 8 is the right view of Fig. 6；
Fig. 9 is the explosive view of the rope sheave and ratchet in Fig. 6；
Figure 10 is the automatic anti-running vehicle control figure of elevator device applied by the embodiment of the present invention；
Specific embodiment
A kind of two-way automatic anti-running vehicle speed limiting system of single brake press plate equipped with speed monitoring component, in Fig. 4~9, packet
It includes and subtracts journey controller, limiter of speed, carriage top set position detection unit, carriage bottom set position detection unit, limiter of speed here
For bidirectional speed limiter, so-called bidirectional speed limiter is exactly the limiter of speed that can be played a role in ascending for elevator and downlink, pedestal 1
Upper to be equipped with rope sheave 2 and ratchet 3 by main axis, the both ends of main shaft are arranged on pedestal 1 by bearing, 2 rotation stop of rope sheave dress
It fits on main shaft, one end of main shaft is equipped with encoder 14, and wirerope 13 is arranged on rope sheave 2.The diameter of ratchet 3 is less than rope sheave
2 diameter is rotatably equipped with pawl 4 on the wheel face of rope sheave 2, torsional spring is provided between pawl 4 and rope sheave 2, torsional spring is to pawl 4
Torsion, so that the rotation of pawl 4 has the trend matched with the card slot card of ratchet 3 always, when pawl 4 is in free state,
Pawl 4 and ratchet 3 can be in the state of clamping, and also rotation is provided with pawl location structure 6, pawl location structure 6 on rope sheave 2
With a press end, which is pressed against on pawl 4, so that pawl 4 is in the normal condition for decontroling ratchet 3, pawl is fixed
There is torsional spring, torsional spring is that pawl location structure 6 provides the power for compressing pawl 4, and pawl 4 is made to overcome it between bit architecture 6 and rope sheave 2
On torsional spring power, keep the state isolated with ratchet 3, also there are two gravity drop hammer 5, pawl 4 and pawls to determine for rolling assembling on rope sheave 2
Bit architecture 6 is in the side of rope sheave 2, and two gravity drop hammers 5 are in the other side of rope sheave 2.Two gravity drop hammers 5 are on rope sheave 2
Set-up mode is centrosymmetric mode, and the rotation point of gravity drop hammer 5 is not located at both ends, and one end quality of gravity drop hammer 5 is hammer
Head end, smaller other end quality is hammer handle end, is provided with compression-spring device 11 between the hammer handle end and rope sheave 2 of a gravity drop hammer 5, is pressed
Spring device 11 makes the tup end of gravity drop hammer 5 be in the centre of rope sheave 2, heavy in tup portion and another of the gravity drop hammer 5
Connecting rod 10 is connected between the hammer handle portion of power hammer 5, the both ends of connecting rod 10 are hinged with two gravity drop hammers 5 respectively, normally turn in rope sheave 2
When dynamic, under the action of compression-spring device 11, the tup portion of two gravity drop hammers 5 is at the centre of rope sheave 2.2 surpass in rope sheave
When speed operating, under the influence of centrifugal force, two gravity drop hammers 5 can overcome the spring force of compression-spring device 11 to open, and two tups can be all
The edge of rope sheave 2 can be turned to, two hammer handles turn at the center of rope sheave 2.Have on pawl location structure 6 across rope sheave 2
Trigger unit, when the tup of gravity drop hammer 5 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 the power of its torsional spring to rotate, and pawl location structure 6 compresses pawl 4, so that pawl 4 continues to far from spine
The direction rotation of wheel 3, with the increase of rotation distance, pawl location structure 6 can decontrol pawl 4, effect of the pawl 4 in its torsional spring
Lower to be stuck with ratchet 3, after pawl location structure 6 decontrols pawl 4, pawl 4 will cross pawl location structure 6 in turn
Pawl location structure 6 is kept off, so that pawl location structure 6 is not capable of resetting, at this moment, effect of the pawl location structure 6 in torsional spring power
Lower press pawl 4, so that pawl 4 is reliably in the state buckled with ratchet 3.In this state, if to contact pawl 4
Buckle between ratchet 3.So that pawl 4 and pawl location structure 6 reply mutual press, so that pawl 4 is maintained at and ratchet 3
When isolated state, so that it may which moving pawl 4 makes its to the lasting rotation of direction rotation far from ratchet 3, and pawl 4 will be with pawl
Location structure 6 separates, return under the action of its torsional spring of pawl location structure 6, at this moment decontrols pawl 4, and pawl location structure 6 will
It is positioned with pawl 4, the two is returned to original state.The side of rope sheave 2 is provided with brake plate device, brake plate on pedestal 1
Pull rod is provided on the brake plate of device, one end of pull rod is threaded through on brake plate, and the brake plate side opposite with rope sheave 2 is interior
Side, another side are lateral surface, outer lateral spring are provided on the outside of brake plate, one end of outer lateral spring presses against braking
On the lateral surface of plate, the other end of outer lateral spring is pressed against on the bulge loop on the end of pull rod, and the other end of pull rod is hinged on
On the wheel face of ratchet 3.Connecting plate 12 is additionally provided between brake plate and ratchet 3, one end of connecting plate 12 is hinged on the side of brake plate
On face, the other end is hinged on the wheel face of ratchet 3, and ratchet 3, connecting plate 12 and brake plate form crank-rocker structure.It is past in rope sheave 2
When one direction rotation, after pawl 4 is fastened togather with ratchet 3, ratchet 3 follows rope sheave 2 to rotate, and ratchet 3 is logical in rotation
Crossing a pull rod drives corresponding brake plate to press to rope sheave 2, realizes the braking of rope sheave 2, rotates in rope sheave 2 toward another direction
When, after pawl 4 is fastened togather with ratchet 3, ratchet 3 follows rope sheave 2 to rotate, and ratchet 3 is driven in rotation by connecting plate 12
Brake plate presses to rope sheave 2, realizes the braking of rope sheave 2, and pull rod is waited during exercise with connecting plate 12 and interfered in order to prevent, pull rod and
The hinged one end of ratchet 3 has elongated hole, and corresponding hinged shaft, which is through in elongated hole, realizes the hinged of pull rod and ratchet 3, equally, company
Plate 12 and the hinged one end of ratchet 3 have elongated hole, and corresponding hinged shaft is through the hinge that connecting plate 12 and ratchet 3 are realized in the elongated hole
It connects.In this way, corresponding hinged shaft can slide in the long hole of connecting plate 12 when pull rod works and pulls brake plate, spine will not influence
The movement of wheel 3, equally, when connecting plate 12 works and pulls brake plate, pull rod will not interfere the movement of ratchet 3.
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 17 is coaxially fixedly installed on wheel face of the ratchet 3 far from gravity drop hammer 5, disc 17 is sheet ring body, disc
Fixed calvus 16 is radially laid on 17 inner hole wall, fixed calvus 16 is fixed by screws on disc.The outer rim cloth of disc 7
Equipped with connection sheet 18, connection sheet 18 is wholely set with disc 17, and connection sheet 18 is coplanar with disc 17, in each connection sheet 18
It is fixed with Self-resetting speed-limiting switch 19, each Self-resetting speed-limiting switch 19 is on a circumference, this circumference is disc 17
One concentric circles, the lever 15 of each Self-resetting speed-limiting switch 19 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 19, 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.Figure 10 is the present embodiment
The automatic anti-running vehicle control figure of applied elevator device, when elevator is stopped, since traction caused by overloading is insufficient；It is super
Brake force caused by carrying is insufficient；Elevator maintenance not in time caused by steel rope abrasion or greasy dirt, cause traction machine insufficient；Or elevator
Brake pad wear caused by maintenance not in time is excessive, causes brake force deficiency etc. a variety of causes, it may appear that the phenomenon that car slipping, slips
Vehicle all occurs from elevator when stop, be mounted on this when the encoder of one end of main shaft with can be to elevator main control system
System transmission signal, it is, the signal that encoder just has car slipping is transferred to elevator when main axis meets car slipping condition
Master control system, elevator master control system are connected with magnet control, receive what encoder transmitted in elevator master control system
After car slipping 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 19 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. a kind of two-way automatic anti-running vehicle speed limiting system of single brake press plate equipped with speed monitoring component, including subtract stroke control
Device, limiter of speed, carriage top set position detection unit, carriage bottom set position detection unit, the limiter of speed include pedestal, on pedestal
It is equipped with rope sheave and ratchet by main axis, the both ends of main shaft are set on the base by bearing, and the diameter of the ratchet is small
In the diameter of rope sheave；Rope sheave is assemblied on main shaft, is equipped with encoder on main shaft, and the side of rope sheave is provided with braking on pedestal
Panel assembly, is additionally provided with connecting plate between the brake plate and ratchet of brake plate device, and one end of connecting plate is hinged on the side of brake plate
On face, the other end is hinged on the wheel face of ratchet, and ratchet, connecting plate and brake plate form crank-rocker structure, the wheel face of rope sheave
It is rotatably equipped with pawl on side, the pawl for matching the card slot card of pawl turning ratchet wheel and ratchet is provided between pawl and rope sheave
Torsional spring is also rotatably equipped with pawl location structure on the wheel face of rope sheave, positioning is provided between pawl location structure and rope sheave
Torsional spring, the press end of pawl location structure and pawl spring press cooperate, and there are two the other side of rope sheave wheel face also rolling assemblings
Gravity drop hammer is additionally provided with the electromagnet that press gravity drop hammer opens gravity drop hammer after powered up, pawl location structure on pedestal
Trigger unit 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, on pawl
It is convexly equipped with and is pressed with the hammer handle of gravity drop hammer so that pawl separates and makes with ratchet when the hammer handle of gravity drop hammer turns to the wheel rim of rope sheave
Obtain the lifting release link of pawl location structure and ratchet pawl reset, it is characterised in that: the ratchet is far from the wheel face of gravity drop hammer
It coaxially is fixedly installed disc, the outer rim position of disc is laid with Self-resetting speed-limiting switch, and each Self-resetting speed-limiting switch is in
On the circumference of one concentric circles of disc, the lever of each Self-resetting speed-limiting switch stretches to inside, and the free end of each lever is located respectively
On the circumference of one group of concentric circles of disc, gravity drop hammer successively touches each Self-resetting speed-limiting switch in opening process, described
Encoder 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
It sets detection unit to be installed at the top of elevator shaft at rate controlling position, carriage bottom set position detection unit is installed in elevator shaft bottom
At rate controlling 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.
2. the two-way automatic anti-running vehicle speed limiting system of single brake press plate according to claim 1 equipped with speed monitoring component,
It is characterized by: the disc is sheet ring body, fixed calvus is radially laid on the inner hole wall of disc, fixed calvus passes through
Screw is fixed on disc.
3. the two-way automatic anti-running vehicle speed limit system of single brake press plate according to claim 1 or 2 equipped with speed monitoring component
System, it is characterised in that: the Self-resetting speed-limiting switch is fixed on disc by connection sheet, and each connection sheet radially extends simultaneously
It is wholely set with disc.
4. the two-way automatic anti-running vehicle speed limiting system of single brake press plate according to claim 1 equipped with speed monitoring component,
It is characterized by: the Self-resetting speed-limiting switch is connected to the carriage Control for Speed Limitation signal input part for subtracting journey controller.
5. the two-way automatic anti-running vehicle speed limit system of single brake press plate according to claim 1 or 4 equipped with speed monitoring component
System, it is characterised in that: the carriage top set position detection unit is switched using first stroke, carriage bottom set position detection unit
It is switched using second stroke, first stroke switch is mounted on the well enclosure of top, and lift car outer wall corresponding position/installing is useful
Cooperate what is bumped against to hit bow in switching with first stroke；Second stroke switch is mounted on the well enclosure of bottom, lift car outer wall phase
Answer position to be installed with cooperates what is bumped against to hit bow for switching with second stroke.
6. the two-way automatic anti-running vehicle speed limit system of single brake press plate according to claim 1 or 4 equipped with speed monitoring component
System, it is characterised in that: the journey controller that subtracts is using microcontroller, and the brake signal output end of microcontroller is for connecting electricity
Brake control signal input in terraced master control system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692321.7A CN105197717B (en) | 2015-10-23 | 2015-10-23 | The two-way automatic anti-running vehicle speed limiting system of single brake press plate equipped with speed monitoring component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692321.7A CN105197717B (en) | 2015-10-23 | 2015-10-23 | The two-way automatic anti-running vehicle speed limiting system of single brake press plate equipped with speed monitoring component |
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| CN105197717A CN105197717A (en) | 2015-12-30 |
| CN105197717B true CN105197717B (en) | 2019-01-29 |
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| CN201510692321.7A Active CN105197717B (en) | 2015-10-23 | 2015-10-23 | The two-way automatic anti-running vehicle speed limiting system of single brake press plate equipped with speed monitoring component |
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Families Citing this family (4)
| 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 |
| CN105883527A (en) * | 2016-06-30 | 2016-08-24 | 西继迅达（许昌）电梯有限公司 | Pawl self-resetting single braking pressing plate bidirectional speed limiter with speed monitoring |
| CN114261865B (en) * | 2021-12-31 | 2022-10-14 | 海南大学 | Speed-limiting braking protection device and application thereof in elevator |
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| GB542532A (en) * | 1939-07-25 | 1942-01-14 | Westinghouse Electric Int Co | Improvements in or relating to elevator safety governors |
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| CN105197717A (en) | 2015-12-30 |
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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. |