CN105197717A - Single-braking pressing plate bidirectional automatic vehicle-sliding-prevention speed-limiting system with speed monitoring unit - Google Patents
Single-braking pressing plate bidirectional automatic vehicle-sliding-prevention speed-limiting system with speed monitoring unit Download PDFInfo
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- CN105197717A CN105197717A CN201510692321.7A CN201510692321A CN105197717A CN 105197717 A CN105197717 A CN 105197717A CN 201510692321 A CN201510692321 A CN 201510692321A CN 105197717 A CN105197717 A CN 105197717A
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Abstract
The invention discloses a single-braking pressing plate bidirectional automatic vehicle-sliding-prevention speed-limiting system with a speed monitoring unit. A base of a speed limiter of the system is coaxially and rotationally equipped with a rope wheel and a ratchet wheel; a ratchet pawl torsional spring is arranged between a ratchet pawl which rotates on one side of the rope pulley and the rope wheel; a ratchet pawl positioning structure is also rotationally mounted on the rope wheel; the jacking end of the ratchet pawl positioning structure is in flexible jacking coordination with the ratchet pawl; a disk plate is coaxially fixed to the wheel face, far away from gravity hammers, of the ratchet wheel; self-reset switches are arranged at the periphery of the disk plate, and are positioned on a concentric circle circumference of the disk plate; levers of all of the self-reset switches extends to the inner side; the free ends of the all levers are positioned on circumferences of a group of concentric circles of the disk plate; the gravity hammers are in contact with all of the self-reset switches sequentially in a stretching process. Through the adoption of the system provided by the invention, a corresponding building can realize the purpose of using a higher-speed elevator under the condition of neither additionally expanding a head space and a bottom space of the elevator nor increasing the cost of a buffer.
Description
Technical field
The present invention relates to a kind of velocity limiter protection system for limiting elevator speed, particularly relating to a kind of single brake press plate two-way automatic anti-running car speed limiting system being provided with speed monitoring parts.
Background technology
Along with the lifting of socioeconomic development and people's levels of substance, skyscraper gets more and more, the command speed of elevator is also more and more higher, due to buffer stroke and speed proportional, this just means that elevator speed is higher, and required buffer stroke is larger, head room and the bottom space of elevator are higher, not only increase the cost of energy disperser, also can greatly increase building difficulty, waste building area.
Current elevator is generally fast with descending stair at 2.5m/s, and buffer of elevator selects according to rated speed of lift.
energy disperserbe to provide the elevator car safety of last a kind of safety guard-safeguard.It is arranged in the well pit of elevator, is positioned at immediately below car and counterweight.When elevator is in motion up or down, due to
steel ropefracture, traction friction force, brake sticking brake power are not enough or
control systemmalfunctioning and surmount terminal stop bottom or top layer time, will by energy disperser buffer action, to avoid lift car or counterweight directly hit the end or rush to summit, protection passenger and the safety of equipment.
If a kind of technical scheme can be provided, do not needing the head room and the bottom space that additionally increase elevator, when not needing to increase energy disperser cost simultaneously, building just can made to adopt the elevator of more speed, this current predicament can be abolished.This just requires that speed lowers when running to above energy disperser by lift car, and the speed of elevator just can reduce by velocity limiter.
Velocity limiter is the critical component of elevator safety, of the prior art have a kind of such bidirectional speed limiter, so-called bidirectional speed limiter be exactly ascending for elevator and descending time the velocity limiter that can play a role, comprise base, base is equipped with rope sheave and ratchet by main axis, and the two ends of main shaft are arranged on base by bearing, and rope sheave spline is assemblied on main shaft, one end of main shaft is provided with coder, and rope sheave is arranged with steel rope.The diameter of ratchet is less than the diameter of rope sheave, the wheel face of rope sheave is rotatably equipped with ratchet, torsion spring is provided with between ratchet and rope sheave, torsion spring, to Pawl Torsion, makes ratchet rotate and has the trend of joining with the draw-in groove card of ratchet all the time, when ratchet is in free state, ratchet and ratchet can be in the state of clamping, the termination of ratchet is convexly equipped with a fixture block, the both sides of fixture block can two cell wall blocks of draw-in groove, prevent ratchet on cw and conter clockwise both direction relative to detent.Rope sheave also rotates and is provided with ratchet location structure, ratchet location structure has a top pressure side, this pressure side top, top is pressed on ratchet, ratchet is made to be in the normal condition decontroling ratchet, between ratchet location structure and rope sheave, there is torsion spring, torsion spring compresses the power of ratchet for ratchet location structure provides, ratchet is made to overcome torsion spring power on it, keep the state be separated with ratchet, rope sheave is also rotatably equipped with two gravity drop hammers, ratchet and ratchet location structure are in the side of rope sheave, and two gravity drop hammers are in the other side of rope sheave.The set-up mode of two gravity drop hammers on rope sheave is centrosymmetric mode, the run-on point of gravity drop hammer is not in two ends, one end quality more greatly tup end of gravity drop hammer, other end quality is less is hammer handle end, compression-spring device is provided with between the hammer handle end of a gravity drop hammer and rope sheave, compression-spring device makes the tup end of gravity drop hammer be in the centre of rope sheave, connecting rod is connected with between the tup portion and the hammer handle portion of another gravity drop hammer of this gravity drop hammer, the two ends of connecting rod are hinged with two gravity drop hammers respectively, when rope sheave normal rotation, under the effect of compression-spring device, the tup portion of two gravity drop hammers is all in the centre of rope sheave.When rope sheave overspeed operation, under the influence of centrifugal force, the spring force that two gravity drop hammers can overcome compression-spring device opens, and two tups all can turn to the edge of rope sheave, and two hammer handles turn to the center of rope sheave.Ratchet location structure has the trigger unit through rope sheave, when the tup of gravity drop hammer turns to the outer rim of rope sheave, gravity drop hammer is to the top of projection in the pressure trigger unit of top, the power making ratchet location structure overcome its torsion spring is rotated, ratchet location structure compresses ratchet, ratchet is made to continue to rotate to the direction away from ratchet, along with the increase of rotation distance, ratchet location structure can decontrol ratchet, ratchet is stuck with ratchet under the effect of its torsion spring, after ratchet location structure decontrols ratchet, ratchet will be crossed ratchet location structure and keep off ratchet location structure conversely, ratchet location structure can not be resetted, at this moment, ratchet location structure pushes up pressure ratchet under the effect of torsion spring power, ratchet failure-free is made to be in the state with ratchet buckle, in this state, it is made to rotate lasting rotation to the direction away from ratchet if move ratchet, ratchet will be separated with ratchet location structure, ratchet location structure is return under the effect of its torsion spring, at this moment ratchet is decontroled, ratchet location structure will be located with ratchet.When ratchet failure-free is in the state with ratchet buckle, rope sheave drives pawl wheel by ratchet.Side in rope sheave on base is provided with brake plate device, the slipper of brake plate device is provided with pull bar, one end of pull bar is located on slipper, the side that slipper is relative with rope sheave is medial surface, another side is lateral surface, has outside spring in the arranged outside of slipper, and the top, one end of outside spring is pressed on the lateral surface of slipper, the other end top of outside spring is pressed on the bulge loop on the termination of pull bar, and other one end of pull bar is hinged on the wheel face of ratchet.Between slipper and ratchet, be also provided with connecting plate, one end of connecting plate is hinged on the side of slipper, and the other end is hinged on the wheel face of ratchet, and ratchet, connecting plate and slipper form crank-rocker structure.When rope sheave rotates toward a direction, after ratchet and ratchet are fastened togather, ratchet is followed rope sheave and is rotated, ratchet drives corresponding slipper to press to rope sheave when rotating by a pull bar, realize the braking of rope sheave, when rope sheave rotates toward another direction, after ratchet and ratchet are fastened togather, ratchet is followed rope sheave and is rotated, ratchet drives slipper to press to rope sheave when rotating by connecting plate, realize the braking of rope sheave, mutually interfere when moving to prevent pull bar and connecting plate, pull bar and the hinged one end of ratchet have elongated hole, corresponding hinge is through in elongated hole and realizes the hinged of pull bar and ratchet, equally, connecting plate and the hinged one end of ratchet have elongated hole, corresponding hinge is through in this elongated hole and realizes the hinged of connecting plate and ratchet.Like this, pull bar work pull slipper time, corresponding hinge can slide in the elongated hole of connecting plate, can not affect the action of ratchet, equally, connecting plate work pull slipper time, pull bar also can not interfere the action of ratchet.Base is also provided with electromagnet, pressure gravity drop hammer can be pushed up when electromagnet is energized, gravity drop hammer is opened, ratchet and pawl is allowed to be fastened togather, realize the forced brake of rope sheave, when elevator breaks down, need the braking manually realizing rope sheave, at this moment, the braking of rope sheave just can be realized to electromagnet energising.
Summary of the invention
The object of this invention is to provide a kind of single brake press plate two-way automatic anti-running car speed limiting system being provided with speed monitoring parts, the mode of braking rope sheave can be passed through for car speed limit to make velocity limiter, thus make corresponding building not need additionally to increase head room and the bottom space of elevator, when not needing to increase energy disperser cost, just can adopt the elevator of more speed simultaneously.
In order to realize above object, the present invention adopts following technical scheme: a kind of single brake press plate two-way automatic anti-running car speed limiting system being provided with speed monitoring parts, comprise and subtract journey controller, velocity limiter, car top set position detection unit, car bottom set position detection unit, described velocity limiter comprises base, base is equipped with rope sheave and ratchet by main axis, the two ends of main shaft are arranged on base by bearing, rope sheave is assemblied on main shaft, main shaft is provided with coder, side in rope sheave on base is provided with brake plate device, also connecting plate is provided with between the slipper and ratchet of brake plate device, one end of connecting plate is hinged on the side of slipper, the other end is hinged on the wheel face of ratchet, ratchet, connecting plate and slipper form crank-rocker structure, the side of the wheel face of rope sheave is rotatably equipped with ratchet, the ratchet torsion spring that the draw-in groove card of ratchet turning ratchet wheel and ratchet is joined is provided with between ratchet and rope sheave, the wheel face of rope sheave is also rotatably equipped with ratchet location structure, location torsion spring is provided with between ratchet location structure and rope sheave, the top pressure side of ratchet location structure and pawl spring top force fit, the opposite side of rope sheave wheel face is also rotatably equipped with two gravity drop hammers, base is also provided with the electromagnet that top pressure gravity drop hammer after powered up makes gravity drop hammer open, the trigger unit of ratchet location structure is convexly equipped with when the tup of gravity drop hammer turns to the outer rim of rope sheave and the top of power hammer press-fit, ratchet is convexly equipped with to press with the hammer handle top of gravity drop hammer when the hammer handle of gravity drop hammer turns to the wheel rim of rope sheave and ratchet is separated with ratchet and makes the lifting reset lever of ratchet location structure and ratchet pawl reset, described ratchet is coaxially fixedly installed disc away from the wheel face of gravity drop hammer, the outer rim position of disc is laid with self-resetting switch, it is circumferentially concentrically ringed that each self-resetting switch is in of disc, the lever of each self-resetting switch stretches to inner side, it is circumferentially concentrically ringed that the free end of each lever is in a group of disc respectively, gravity drop hammer touches each self-resetting switch successively in the process of opening, described coder is used for transmitting with elevator master control unit being connected, elevator master control unit is connected with magnet control, car top set position detection unit is installed in Kong Su position, elevator hoistways top, and car bottom set position detection unit is installed in bottom elevator hoistways and controls fast position, the signal output part of car top set position detection unit connects the car top set signal input part subtracting journey controller, the signal output part of car bottom set position detection unit connects the car bottom set signal input part subtracting journey controller, the signal output part of self-resetting switch connects the car Control for Speed Limitation signal input part subtracting journey controller, subtracts the speed-slackening signal mouth of journey controller for connecting the speed-slackening signal input end of elevator master control system.
Described disc is sheet ring body, and on the inner hole wall of disc, radial direction is laid with fixing calvus, and fixing calvus is fixed by screws on disc.
Described self-resetting switch is fixed on disc by connecting strap, and each connecting strap radial direction extends and is wholely set with disc.
Described Self-resetting speed limiting switch is connected to the car Control for Speed Limitation signal input part subtracting journey controller.
Described car top set position detection unit adopts the first travel switch, car bottom set position detection unit adopts the second travel switch, first travel switch is arranged on the well enclosure of top, lift car outer wall relevant position/be equiped with for coordinate with the first travel switch bump against hit bow; Second travel switch be arranged on bottom well enclosure on, lift car outer wall relevant position be equiped with for coordinate with the second travel switch bump against hit bow.
The described journey controller that subtracts adopts microcontroller, and the speed-slackening signal mouth of microcontroller is for connecting the brake control signal input end in elevator master control system.
The present invention is by the speed of car Control for Speed Limitation unit Real-Time Monitoring car, when car top set position detection unit or car bottom set position detection unit detect that car arrives this position, output signal to and subtract journey controller, subtract after journey controller receives this signal, judge the whether action of current velocity limiter, if now velocity limiter action, subtract journey controller and output signal to elevator master control system at once, control elevator brake, make elevator out of service before arrival energy disperser, thus realize making corresponding building not need additionally to increase head room and the bottom space of elevator, when not needing to increase energy disperser cost simultaneously, just can adopt the object of more speed elevator.Ratchet of the present invention is provided with disc, the outer rim position of disc is laid with self-resetting switch, it is circumferentially concentrically ringed that each self-resetting switch is in of disc, the lever of each self-resetting switch stretches to inner side, it is circumferentially concentrically ringed that the free end of each lever is in a group of disc respectively, gravity drop hammer touches each self-resetting switch successively in the process of opening, after touching self-resetting switch, self-resetting switch will output signal to and subtract journey controller, subtract after journey controller receives this signal, judge the whether action of current car Control for Speed Limitation unit, if now car Control for Speed Limitation unit action, subtract journey controller and output signal to elevator master control system at once, control elevator brake, make elevator out of service before arrival energy disperser, thus realize making corresponding building not need additionally to increase head room and the bottom space of elevator, when not needing to increase energy disperser cost simultaneously, just can adopt the object of more speed elevator.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the embodiment of the present invention.
Fig. 2 is the schematic circuit diagram of the embodiment of the present invention.
Fig. 3 assembles schematic diagram with the corresponding of first, second travel switch shown in Fig. 2 for car.
Fig. 4 is the integral structure schematic 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 rope sheave in Fig. 4 and ratchet and disc.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the right elevation of Fig. 6.
Fig. 9 is the exploded view of rope sheave in Fig. 6 and ratchet.
Figure 10 is the automatic anti-running car control chart of the elevator device that embodiments of the invention are applied.
Detailed description of the invention
A kind of single brake press plate two-way automatic anti-running car speed limiting system being provided with speed monitoring parts, in Fig. 4 ~ 9, comprise and subtract journey controller, velocity limiter, car top set position detection unit, car bottom set position detection unit, here velocity limiter is bidirectional speed limiter, so-called bidirectional speed limiter be exactly ascending for elevator and descending time the velocity limiter that can play a role, its base 1 is equipped with rope sheave 2 and ratchet 3 by main axis, the two ends of main shaft are arranged on base 1 by bearing, rope sheave 2 spline is assemblied on main shaft, one end of main shaft is provided with coder 14, rope sheave 2 is arranged with steel rope 13.The diameter of ratchet 3 is less than the diameter of rope sheave 2, the wheel face of rope sheave 2 is rotatably equipped with ratchet 4, torsion spring is provided with between ratchet 4 and rope sheave 2, torsion spring is to ratchet 4 torsion, ratchet 4 is rotated there is the trend of joining with the draw-in groove card of ratchet 3 all the time, when ratchet 4 is in free state, ratchet 4 and ratchet 3 can be in the state of clamping, rope sheave 2 also rotates and is provided with ratchet location structure 6, ratchet location structure 6 has a top pressure side, this pressure side top, top is pressed on ratchet 4, ratchet 4 is made to be in the normal condition decontroling ratchet 3, between ratchet location structure 6 and rope sheave 2, there is torsion spring, torsion spring compresses the power of ratchet 4 for ratchet location structure 6 provides, ratchet 4 is made to overcome torsion spring power on it, keep the state be separated with ratchet 3, rope sheave 2 is also rotatably equipped with two gravity drop hammers 5, ratchet 4 and ratchet location structure 6 are in the side of rope sheave 2, two gravity drop hammers 5 are in the other side of rope sheave 2.The set-up mode of two gravity drop hammers 5 on rope sheave 2 is centrosymmetric mode, the run-on point of gravity drop hammer 5 is not in two ends, one end quality more greatly tup end of gravity drop hammer 5, other end quality is less is hammer handle end, compression-spring device 11 is provided with between the hammer handle end of a gravity drop hammer 5 and rope sheave 2, compression-spring device 11 makes the tup end of gravity drop hammer 5 be in the centre of rope sheave 2, connecting rod 10 is connected with between the tup portion and the hammer handle portion of another gravity drop hammer 5 of this gravity drop hammer 5, the two ends of connecting rod 10 are hinged with two gravity drop hammers 5 respectively, when rope sheave 2 normal rotation, under the effect of compression-spring device 11, the tup portion of two gravity drop hammers 5 is all in the centre of rope sheave 2.When rope sheave 2 overspeed operation, under the influence of centrifugal force, the spring force that two gravity drop hammers 5 can overcome compression-spring device 11 opens, and two tups all can turn to the edge of rope sheave 2, and two hammer handles turn to the center of rope sheave 2.Ratchet location structure 6 has the trigger unit through rope sheave 2, when the tup of gravity drop hammer 5 turns to the outer rim of rope sheave 2, gravity drop hammer 5 is to the top of projection in the pressure trigger unit of top, the power making ratchet location structure 6 overcome its torsion spring is rotated, ratchet location structure 6 compresses ratchet 4, ratchet 4 is made to continue to rotate to the direction away from ratchet 3, along with the increase of rotation distance, ratchet location structure 6 can decontrol ratchet 4, ratchet 4 is stuck with ratchet 3 under the effect of its torsion spring, after ratchet location structure 6 decontrols ratchet 4, ratchet 4 will be crossed ratchet location structure 6 and keep off ratchet location structure 6 conversely, ratchet location structure 6 can not be resetted, at this moment, ratchet location structure 6 pushes up pressure ratchet 4 under the effect of torsion spring power, ratchet 4 failure-free is made to be in the state with ratchet 3 buckle.In this state, if the buckle between ratchet 4 and ratchet 3 will be contacted.Ratchet 4 and ratchet location structure 6 are replied and mutually pushes up pressure, when making ratchet 4 remain on the state be separated with ratchet 3, just can move ratchet 4 makes it rotate lasting rotation to the direction away from ratchet 3, ratchet 4 will be separated with ratchet location structure 6, ratchet location structure 6 is return under the effect of its torsion spring, at this moment decontrol ratchet 4, ratchet location structure 6 will be located with ratchet 4, and both are returned to initial condition.Base 1 is provided with brake plate device in the side of rope sheave 2, the slipper of brake plate device is provided with pull bar, one end of pull bar is located on slipper, the side that slipper is relative with rope sheave 2 is medial surface, another side is lateral surface, has outside spring in the arranged outside of slipper, and the top, one end of outside spring is pressed on the lateral surface of slipper, the other end top of outside spring is pressed on the bulge loop on the termination of pull bar, and other one end of pull bar is hinged on the wheel face of ratchet 3.Between slipper and ratchet 3, be also provided with connecting plate 12, one end of connecting plate 12 is hinged on the side of slipper, and the other end is hinged on the wheel face of ratchet 3, and ratchet 3, connecting plate 12 form crank-rocker structure with slipper.When rope sheave 2 rotates toward a direction, after ratchet 4 and ratchet 3 are fastened togather, ratchet 3 is followed rope sheave 2 and is rotated, ratchet 3 drives corresponding slipper to press to rope sheave 2 when rotating by a pull bar, realize the braking of rope sheave 2, when rope sheave 2 rotates toward another direction, after ratchet 4 and ratchet 3 are fastened togather, ratchet 3 is followed rope sheave 2 and is rotated, ratchet 3 drives slipper to press to rope sheave 2 when rotating by connecting plate 12, realize the braking of rope sheave 2, mutually interfere when moving to prevent pull bar and connecting plate 12, pull bar and the hinged one end of ratchet 3 have elongated hole, corresponding hinge is through in elongated hole and realizes the hinged of pull bar and ratchet 3, equally, connecting plate 12 one end hinged with ratchet 3 has elongated hole, corresponding hinge is through in this elongated hole and realizes the hinged of connecting plate 12 and ratchet 3.Like this, pull bar work pull slipper time, corresponding hinge can slide in the elongated hole of connecting plate 12, can not affect the action of ratchet 3, equally, connecting plate 12 work pull slipper time, pull bar also can not interfere the action of ratchet 3.
Ratchet 4 is convexly equipped with lifting reset lever 7, lifting reset lever 7 is perpendicular to the wheel face of rope sheave 2, here rope sheave 2 is wheel hub dress, just there iing wheel rim, have core wheel, be linked to be an entirety between core wheel and wheel rim by spoke, lifting reset lever 7 is passed by between two spokes, the hammer handle of gravity drop hammer 5 offers functional hole 9, and lifting reset lever 7 is passed by functional hole 9 after passing between two spokes again.The hammer handle of gravity drop hammer 5 is fixed with top pinch roller 8 by being located in helicitic texture in functional hole 9, when gravity drop hammer 5 resets, namely when the hammer handle of gravity drop hammer 5 turns to the wheel rim of rope sheave 2, top pinch roller 8 can push up pressure lifting reset lever 7, namely drive ratchet 4 to make it rotate to the direction away from ratchet 3 to continue to rotate, ratchet 4 will be separated with ratchet location structure 6, ratchet location structure 6 is return under the effect of its torsion spring, at this moment ratchet 4 is decontroled, ratchet location structure 6 will be located with ratchet 4, both are returned to initial condition, realize automatically reseting of ratchet 4.
Due to functional hole 9 on the hammer handle that lifting reset lever 7 is through gravity drop hammer 5, in motion process, lifting reset lever 7 can be moved relative to the hammer handle of gravity drop hammer 5, so functional hole 9 need to have dodge lifting reset lever 7 dodge part, dodge part and lifting reset lever 7 can be made to move freely relative to gravity drop hammer 5.
The wheel face of ratchet 3 away from gravity drop hammer 5 is coaxially fixedly installed disc 17, and disc 17 is sheet ring body, and on the inner hole wall of disc 17, radial direction is laid with fixing calvus 16, and fixing calvus 16 is fixed by screws on disc.The outer rim of disc 7 is laid with connecting strap 18, connecting strap 18 and disc 17 are wholely set, and connecting strap 18 is coplanar with disc 17, each connecting strap 18 is fixed with self-resetting switch 19, each self-resetting switch 19 is in one circumferentially, this circumference is a concentric circles of disc 17, the lever 15 of each self-resetting switch 19 stretches to inner side, the free end of each lever 15 be in respectively one group circumferentially concentrically ringed, this group concentric circles is all concentric circless of disc, gravity drop hammer touches each self-resetting switch 19 successively in the process of opening, long first the touching of lever, touch after lever is short.
Base 1 is also provided with electromagnet, and after powered up, electromagnet can push up pressure gravity drop hammer, and two gravity drop hammers are opened, and namely makes 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 automatic anti-running car control chart of the elevator device that the present embodiment is applied, and when elevator parking, the traction caused owing to overloading is not enough, overload the braking force deficiency caused, the steel rope abrasion that elevator maintenance causes not in time or greasy dirt, cause towing machine not enough, or the brake facing wearing and tearing that elevator maintenance causes not in time are excessive, cause braking force deficiency etc. a variety of causes, there will be and slip the phenomenon of car, the car that slips is all when appearing at elevator parking, be arranged on the coder participant of one end of main shaft this time to elevator master control unit signal transmission, namely, meet once main axis and slip spoke part, coder just has and slips the Signal transmissions of car to elevator master control unit, elevator master control unit is connected with magnet control, what receive that coder transmits at elevator master control unit slips after car signal, electromagnet energising will be controlled, realize the forced brake of rope sheave, automatically the appearance of anti-running phenomenon is realized.
Shown in composition graphs 1, the signal output part of self-resetting switch 19 connects the car Control for Speed Limitation signal input part subtracting journey controller, subtracts the speed-slackening signal mouth of journey controller for connecting the speed-slackening signal input end of elevator master control system.Car top set position detection unit is installed in Kong Su position, elevator hoistways top, car bottom set position detection unit is installed in bottom elevator hoistways and controls fast position, Kong Su position, elevator hoistways top, not higher than well headroom energy disperser bottom surface, is controlled fast position and is not less than shaft bottom energy disperser end face bottom elevator hoistways; The signal output part of car top set position detection unit connects the car top set signal input part subtracting journey controller, and the signal output part of car bottom set position detection unit connects the car bottom set signal input part subtracting journey controller.
Be illustrated in figure 2 the schematic circuit diagram subtracting stroke bidirectional automatic anti-running car speed limiting system provided by the invention:
The described journey controller that subtracts adopts microcontroller U1, and microcontroller U1 adopts model to be STM32F103R8T6.
Described velocity limiter adopts self-resetting switch U2, Self-resetting speed limiting switch U2 is UKT self-resetting switch, be arranged on elevator governor, wherein the mechanical switch parts of Self-resetting speed limiting switch U2 and the two ends of lever are connected to and subtract between the J1-3 pin of journey controller U1 and J1com pin, mechanical switch parts one action of Self-resetting speed limiting switch U2, the J1-3 pin subtracting journey controller U1 just captures level change information, thus knows that now car speed has exceeded the energy disperser command speed prestored.
Described car top set position detection unit adopts the first stroke switch S 1, and car bottom set position detection unit adopts the second travel switch S2; First stroke switch S 1 is arranged on the well enclosure of top, lift car outer wall relevant position be equiped with for coordinate with the first stroke switch S 1 bump against hit bow; Second travel switch S2 be arranged on bottom well enclosure on, lift car outer wall relevant position be equiped with for coordinate with the second travel switch S2 bump against hit bow.
As shown in Figure 3, first stroke switch S 1 is arranged on the well enclosure at elevator hoistways top, and not higher than the bottom surface of well headroom energy disperser, second travel switch S2 is arranged on the well enclosure bottom elevator hoistways, and be not less than the end face of shaft bottom energy disperser, first stroke switch S 1, second travel switch S2 is installed on same perpendicular on the vertical line of horizontal surface, the corresponding first stroke switch S 1 of outer wall of car C1, the position of the second travel switch S2 is equiped with a vertical integral type and hits bow B1, hit the outer wall height of bow B1 length close to car, hit the top of bow B1, bottom is set to the inclined-plane tilted to car walls respectively, the lever of the first stroke switch S 1 is set to compare horizontal surface and upwards lifts an angle, the lever of the second travel switch S2 is set to compare horizontal surface and is pressed with an angle downwards, described angle just with hit the respective ramp of bending B1 two ends and match, first, second travel switch S1, the lever end of S2 is provided with a roller, such as hit bow B1 with car C1 rise to well headroom bump against the first stroke switch S 1 time, the lever of the first stroke switch S 1 can be pushed down, when car leaves, the lever of the first stroke switch S 1 can flick, the angle of inclination of lever and the roller of lever end are all to protect the first stroke switch S 1 in order to avoid damaged, second travel switch S2 in like manner.First, second travel switch S1, S2 are mechanical switch.
As Fig. 2, first stroke switch S 1 is connected between the J1com pin of microcontroller U1 and J1-1 pin, second travel switch S2 is connected between the J1com pin of microcontroller U1 and J1-2 pin, when the first stroke switch S 1 or the second travel switch S2 do not hit bow B1 be pressed onto time, all in closure state, when the first stroke switch S 1 or the second travel switch S2 hit bow B1 be pressed onto time, in off-state, microcontroller U1 according on J1-1 pin, J1-2 pin level change come corresponding judgement.
In the present embodiment, the speed-slackening signal mouth J5-3 pin of microcontroller U1, energization input two pin of J5com pin difference connecting brake YB, power on for control brake YB.
Described first stroke switch S 1, second travel switch S2 all adopts model to be S3BEL-1370, and drg model is DQN090.
In cage operation process, Self-resetting speed limiting switch U2 is along with the speed of the rotation Real-Time Monitoring current car C1 of elevator governor, when car C1 moves to well headroom or shaft bottom, hit bow B1 when bumping against the first stroke switch S 1 or the second travel switch S2, first stroke switch S 1 or the second travel switch S2 disconnect, microcontroller U1 judges the status signal of current Self-resetting speed limiting switch U2 after knowing this information, if now Self-resetting speed limiting switch U2 is normally off, illustrate that elevator master control system achieves normal deceleration, now car speed can not exceed the design speed of energy disperser, now microcontroller U1 is failure to actuate (microcontroller U1 protect be that dangerous situation appears in the design speed preventing the speed of car cushion at collision from exceeding energy disperser), if current Self-resetting speed limiting switch U2 disconnects, namely microcontroller U1 judges that current car speed has exceeded the energy disperser command speed prestored, control brake YB power-off at once, after drg YB power-off, damper brake locking, thus braking car moves, thus realize making corresponding building not need additionally to increase head room and the bottom space of elevator, when not needing to increase energy disperser cost, just can adopt the object of the elevator of more speed simultaneously.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (6)
1. one kind is provided with single brake press plate two-way automatic anti-running car speed limiting system of speed monitoring parts, comprise and subtract journey controller, velocity limiter, car top set position detection unit, car bottom set position detection unit, described velocity limiter comprises base, base is equipped with rope sheave and ratchet by main axis, the two ends of main shaft are arranged on base by bearing, rope sheave is assemblied on main shaft, main shaft is provided with coder, side in rope sheave on base is provided with brake plate device, also connecting plate is provided with between the slipper and ratchet of brake plate device, one end of connecting plate is hinged on the side of slipper, the other end is hinged on the wheel face of ratchet, ratchet, connecting plate and slipper form crank-rocker structure, the side of the wheel face of rope sheave is rotatably equipped with ratchet, the ratchet torsion spring that the draw-in groove card of ratchet turning ratchet wheel and ratchet is joined is provided with between ratchet and rope sheave, the wheel face of rope sheave is also rotatably equipped with ratchet location structure, location torsion spring is provided with between ratchet location structure and rope sheave, the top pressure side of ratchet location structure and pawl spring top force fit, the opposite side of rope sheave wheel face is also rotatably equipped with two gravity drop hammers, base is also provided with the electromagnet that top pressure gravity drop hammer after powered up makes gravity drop hammer open, the trigger unit of ratchet location structure is convexly equipped with when the tup of gravity drop hammer turns to the outer rim of rope sheave and the top of power hammer press-fit, ratchet is convexly equipped with to press with the hammer handle top of gravity drop hammer when the hammer handle of gravity drop hammer turns to the wheel rim of rope sheave and ratchet is separated with ratchet and makes the lifting reset lever of ratchet location structure and ratchet pawl reset, it is characterized in that: described ratchet is coaxially fixedly installed disc away from the wheel face of gravity drop hammer, the outer rim position of disc is laid with self-resetting switch, it is circumferentially concentrically ringed that each self-resetting switch is in of disc, the lever of each self-resetting switch stretches to inner side, it is circumferentially concentrically ringed that the free end of each lever is in a group of disc respectively, gravity drop hammer touches each self-resetting switch successively in the process of opening, described coder is used for transmitting with elevator master control unit being connected, elevator master control unit is connected with magnet control, car top set position detection unit is installed in Kong Su position, elevator hoistways top, and car bottom set position detection unit is installed in bottom elevator hoistways and controls fast position, the signal output part of car top set position detection unit connects the car top set signal input part subtracting journey controller, the signal output part of car bottom set position detection unit connects the car bottom set signal input part subtracting journey controller, the signal output part of self-resetting switch connects the car Control for Speed Limitation signal input part subtracting journey controller, subtracts the speed-slackening signal mouth of journey controller for connecting the speed-slackening signal input end of elevator master control system.
2. the single brake press plate two-way automatic anti-running car speed limiting system being provided with speed monitoring parts according to claim 1, it is characterized in that: described disc is sheet ring body, on the inner hole wall of disc, radial direction is laid with fixing calvus, and fixing calvus is fixed by screws on disc.
3. the single brake press plate two-way automatic anti-running car speed limiting system being provided with speed monitoring parts according to claim 1 and 2, it is characterized in that: described self-resetting switch is fixed on disc by connecting strap, each connecting strap radial direction extends and is wholely set with disc.
4. the single brake press plate two-way automatic anti-running car speed limiting system being provided with speed monitoring parts according to claim 1, is characterized in that: described Self-resetting speed limiting switch is connected to the car Control for Speed Limitation signal input part subtracting journey controller.
5. the single brake press plate two-way automatic anti-running car speed limiting system being provided with speed monitoring parts according to claim 1 or 4, it is characterized in that: described car top set position detection unit adopts the first travel switch, car bottom set position detection unit adopts the second travel switch, first travel switch is arranged on the well enclosure of top, lift car outer wall relevant position/be equiped with for coordinate with the first travel switch bump against hit bow; Second travel switch be arranged on bottom well enclosure on, lift car outer wall relevant position be equiped with for coordinate with the second travel switch bump against hit bow.
6. the single brake press plate two-way automatic anti-running car speed limiting system being provided with speed monitoring parts according to claim 1 or 4 or 5, it is characterized in that: described in subtract journey controller adopt microcontroller, the speed-slackening signal mouth of microcontroller is for connecting the brake control signal input end in elevator master control system.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| Application Number | Priority Date | Filing Date | Title |
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| 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 true CN105197717A (en) | 2015-12-30 |
| CN105197717B 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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| CN114261865A (en) * | 2021-12-31 | 2022-04-01 | 海南大学 | Speed-limiting braking protection device and application thereof in elevator |
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|---|---|
| CN105197717B (en) | 2019-01-29 |
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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. |
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