CN105197718B - Subtract stroke bidirectional speed limiting system - Google Patents
Subtract stroke bidirectional speed limiting system Download PDFInfo
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- CN105197718B CN105197718B CN201510692470.3A CN201510692470A CN105197718B CN 105197718 B CN105197718 B CN 105197718B CN 201510692470 A CN201510692470 A CN 201510692470A CN 105197718 B CN105197718 B CN 105197718B
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- ratchet
- rope sheave
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Abstract
The invention discloses one kind to subtract stroke bidirectional speed limiting system, rope sheave is assemblied on main shaft, ratchet is rotatably equipped with the side of the wheel face of rope sheave, the ratchet torsion spring for matching somebody with somebody the neck card of ratchet turning ratchet wheel and ratchet is provided between ratchet and rope sheave, ratchet location structure is also rotatably equipped with the wheel face of rope sheave, ratchet is coaxially fixedly installed disc on the wheel face away from 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 inner side, the free end of each lever is on the circumference of one group of concentric circles of disc respectively, gravity drop hammer touches each self-resetting switch successively in opening process.The present invention, which can realize, makes corresponding building be not required to the headroom and bottom space of extra increase elevator, while in the case of buffer cost need not be increased, just can be using the purpose of more speed elevator.
Description
Technical field
The present invention relates to a kind of safety speed-limit system for being used to limit elevator speed, more particularly to one kind to subtract stroke pair
To speed limiting system.
Background technology
With the development of social economy and the lifting of people's levels of substance, skyscraper is more and more, the specified speed of elevator
Also more and more higher is spent, because buffer stroke and speed are proportional, this means that elevator speed is higher, required
Buffer stroke is bigger, and the headroom and bottom space of elevator are higher, not only increases the cost of buffer, can also increase greatly
Add building difficulty, waste construction area.
For elevator typically 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 arranged in the well pit of elevator,
Positioned at the underface of car and counterweight.When elevator is in being moved upwardly or downwardly, due toSteel wire ropeFracture, traction frictional force, embrace
Lock brake force deficiency orControl systemFailure and when surmounting terminal stop bottom or top layer, will by buffer cushioning effect,
To avoid lift car or counterweight from directly hitting bottom or rush to summit, the safety of passenger and equipment is protected.
If a kind of technical scheme can be provided, the headroom and bottom space of extra increase elevator are being not required to, while not
Need in the case of increasing buffer cost, with regard to building can be made to use the elevator of more speed, will can abolish current this and be stranded
Border.This requires lift car that speed lowers when running to above buffer, and limiter of speed can is by the speed of elevator
Degree reduces.
Of the prior art have a kind of such bidirectional speed limiter, and so-called bidirectional speed limiter is exactly in ascending for elevator and descending
The limiter of speed that Shi Douneng plays a role, including base, rope sheave and ratchet, the both ends of main shaft are equipped with by main axis on base
It is arranged on by bearing on base, rope sheave is assemblied on main shaft, and steel wire rope is arranged with rope sheave.The diameter of ratchet is less than rope sheave
Diameter, ratchet is rotatably equipped with the wheel face of rope sheave, torsion spring is provided between ratchet and rope sheave, torsion spring makes to Pawl Torsion
The trend that there is pawl rotation the neck card with ratchet to match somebody with somebody all the time is obtained, when ratchet is in free state, ratchet and ratchet
The state of clamping can be in, be convexly equipped with a fixture block on the termination of ratchet, the both sides of fixture block can with two cell wall blocks of neck,
Prevent ratchet from being moved clockwise and anticlockwise in both direction relative to ratchet.Also rotated on rope sheave and be provided with ratchet positioning
Structure, ratchet location structure have a top pressure end, and the top pressure end top pressure is on ratchet so that ratchet, which is in, is decontroling ratchet just
Normal state, has torsion spring between ratchet location structure and rope sheave, torsion spring provides the power for compressing ratchet for ratchet location structure, makes spine
Pawl overcomes torsion spring power thereon, keeps the state separated with ratchet, two gravity drop hammers, ratchet and spine are also rotatably equipped with rope sheave
Pawl location structure is in the side of rope sheave, and two gravity drop hammers are in the other side of rope sheave.Two gravity drop hammer setting on rope sheave
The mode of putting is centrosymmetric mode, and the run-on point of gravity drop hammer is not located at both ends, and one end quality of gravity drop hammer is tup end,
It is hammer handle end that other end quality is smaller, is provided with compression-spring device between the hammer handle end of gravity drop hammer and rope sheave, compression-spring device makes
The tup end of gravity drop hammer is in the centre of rope sheave, the tup portion of the gravity drop hammer and the hammer handle portion of another gravity drop hammer it
Between be connected with connecting rod, the both ends of connecting rod are hinged with two gravity drop hammers respectively, in rope sheave normal rotation, in the effect of compression-spring device
Under, the tup portion of two gravity drop hammers is at the centre of rope sheave.In rope sheave overspeed operation, 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 all turn to the edge of rope sheave, and two hammer handles turn to
At the center of rope sheave.There is the trigger unit through rope sheave on ratchet location structure, the outer of rope sheave is turned in the tup of gravity drop hammer
During edge, top of the gravity drop hammer to projection in top pressure trigger unit so that ratchet location structure overcomes the power of its torsion spring to rotate, and ratchet is fixed
Bit architecture compresses ratchet so that ratchet continues to rotate to the direction away from ratchet, with the increase of rotation distance, ratchet positioning knot
Structure can decontrol ratchet, and ratchet is stuck in the presence of its torsion spring with ratchet, after ratchet location structure decontrols ratchet, ratchet
Ratchet location structure will be crossed and keep off ratchet location structure in turn so that ratchet location structure can not reset, at this moment, ratchet
Location structure top pressure ratchet in the presence of torsion spring power so that ratchet is reliably in the state with ratchet buckle, in this shape
Under state, it is set to rotate lasting rotation to the direction away from ratchet if moving ratchet, ratchet will separate with ratchet location structure,
Ratchet location structure return in the presence of its torsion spring, at this moment decontrols ratchet, and ratchet location structure will position with ratchet.In ratchet
When being reliably in the state with ratchet buckle, rope sheave drives pawl wheel by ratchet.Both sides in rope sheave on base are set
Brake plate device is equipped with, pull bar is provided with the keep plate of two brake plate devices, one end of pull bar is located on keep plate, and two
The keep plate side relative with rope sheave is medial surface, and another side is lateral surface, and outside bullet is provided with the outside of keep plate
Spring, one end top pressure of outer lateral spring is on the lateral surface of keep plate, and the other end top pressure of outer lateral spring is on the termination of pull bar
On bulge loop, the other end of pull bar joins on the wheel face of ratchet.When elevator rises, rope sheave rotates toward a direction, works as spine
After pawl is fastened togather with ratchet, ratchet follows rope sheave to rotate, and ratchet drives corresponding brake when rotating by a pull bar
Plate presses to rope sheave, realizes the braking of rope sheave, and when being risen under elevator, rope sheave rotates toward another direction, when ratchet and ratchet buckle
After together, ratchet follows rope sheave to rotate, and ratchet drives another corresponding keep plate pressure when rotating by another pull bar
To rope sheave, the braking of rope sheave is realized.It is being convexly equipped with ratchet when the hammer handle of gravity drop hammer turns to the wheel rim of rope sheave and gravity drop hammer
Hammer handle top pressure causes ratchet to be separated with ratchet and causes the lifting release link of ratchet location structure and ratchet pawl reset, in the speed of rope sheave
Degree reduces, and after the speed of car lowers, gravity drop hammer can reset in the presence of reseting pressuring spring, and at this moment the hammer handle of gravity drop hammer turns
To the wheel rim of rope sheave, ratchet separates with ratchet, and limiter of speed automatically resets.Electromagnet is additionally provided with base, in electromagnetism Tie Tong
Meeting top pressure gravity drop hammer when electric so that gravity drop hammer opens, and allows ratchet and pawl to be fastened togather, realizes the forced brake of rope sheave, when
, it is necessary to manually realize the braking of rope sheave when elevator breaks down, at this moment, the braking of rope sheave is realized to electromagnet energization can.
The content of the invention
It is an object of the invention to provide one kind to subtract stroke bidirectional speed limiting system, to allow limiter of speed to pass through braking
The mode of rope sheave is car speed limit, so that corresponding building is not required to the headroom and bottom space of extra increase elevator, simultaneously
In the case of buffer cost need not be increased, the elevator of more speed can be just used.
In order to realize the above object the present invention adopts the following technical scheme that：One kind subtracts stroke bidirectional speed limiting system, bag
Include and subtract journey controller, limiter of speed, car top set position detection unit, car bottom set position detection unit, the limiter of speed bag
Include base, rope sheave and ratchet are equipped with by main axis on base, the both ends of main shaft are arranged on base by bearing, rope sheave
It is assemblied on main shaft, the both sides of rope sheave is provided with brake plate device on base, are rotatably equipped with the side of the wheel face of rope sheave
Ratchet, the ratchet torsion spring for matching somebody with somebody the neck card of ratchet turning ratchet wheel and ratchet is provided between ratchet and rope sheave, in the wheel of rope sheave
Ratchet location structure is also rotatably equipped with face, positioning torsion spring, ratchet positioning knot are provided between ratchet location structure and rope sheave
The top pressure end of structure coordinates with pawl spring top pressure, and the opposite side of rope sheave wheel face is also rotatably equipped with two gravity drop hammers, on base
The electromagnet that top pressure gravity drop hammer after powered up causes gravity drop hammer to open is additionally provided with, is convexly equipped with the trigger unit of ratchet location structure
Top when the tup of gravity drop hammer turns to the outer rim of rope sheave with power hammer press-fit, is convexly equipped with gravity drop hammer on ratchet
Hammer handle turn to rope sheave wheel rim when with the hammer handle top pressure of gravity drop hammer ratchet is separated with ratchet and cause ratchet location structure and
The lifting release link of ratchet pawl reset, described ratchet are coaxially fixedly installed disc on the wheel face away from gravity drop hammer, disc it is outer
Edge position is laid with self-resetting switch, and each self-resetting switch is on the circumference of a concentric circles of disc, and each Self-resetting is opened
The lever of pass stretches to inner side, and the free end of each lever is on the circumference of one group of concentric circles of disc respectively, and gravity drop hammer is opening
During touch each self-resetting switch successively, car top set position detection unit is installed in rate controlling position at the top of elevator hoistways
Place, car bottom set position detection unit are installed in elevator hoistways bottom rate controlling opening position；The letter of car top set position detection unit
The connection of number output end subtracts the car top set signal input part of journey controller, the signal output part of car bottom set position detection unit
Connection subtracts the car bottom set signal input part of journey controller, and the signal output part connection of self-resetting switch subtracts journey controller
Car Control for Speed Limitation signal input part, the brake signal output end for subtracting journey controller are used for the braking for connecting elevator master control system
Signal input part.
Described disc is sheet ring body, and fixed calvus is radially laid with the inner hole wall of disc, and fixed calvus passes through spiral shell
Nail is fixed on disc.
Described self-resetting switch is fixed on disc by connection sheet, each connection sheet radially extend and with disc one
Set.
Described Self-resetting speed-limiting switch is connected to the car Control for Speed Limitation signal input part for subtracting journey controller.
Described car top set position detection unit uses the first travel switch, and car bottom set position detection unit is using the
Two travel switches, the first travel switch are arranged on the well enclosure of top, and lift car outer wall relevant position/be equiped with is for the
One stroke switch coordinates what is bumped against to hit bow；Second travel switch is arranged on the well enclosure of bottom, lift car outer wall relevant position
It is equiped with for coordinating what is bumped against to hit bow with the second travel switch.
The journey controller that subtracts uses microcontroller, and the brake signal output end of microcontroller is used to connect elevator master control
Brake control signal input in system.
The present invention monitors the speed of car by car Control for Speed Limitation unit in real time, when car top set position detection unit or
When car bottom set position detection unit detects that car reaches the position, output signal to and subtract journey controller, subtract Stroke Control
After device receives the signal, judge whether current limiter of speed acts, if now limiter of speed acts, subtract journey controller and export at once
Signal gives elevator master control system, controls elevator brake, makes elevator out of service before buffer is reached, and makes accordingly so as to realize
Building is not required to the headroom and bottom space of extra increase elevator, while in the case of buffer cost need not be increased, just
The purpose of more speed elevator can be used.Disc is provided with the ratchet of the present invention, the outer rim position of disc is laid with Self-resetting
Switch, each self-resetting switch are on the circumference of a concentric circles of disc, and the lever of each self-resetting switch stretches to inner side, respectively
The free end of lever is on the circumference of one group of concentric circles of disc respectively, gravity drop hammer touched successively in opening process it is each from
Reset switch, after self-resetting switch is touched, self-resetting switch, which will output signal to, subtracts journey controller, subtracts Stroke Control
After device receives the signal, judge whether current car Control for Speed Limitation unit acts, if now car Control for Speed Limitation unit acts,
Subtract journey controller and output signal to elevator master control system at once, control elevator brake, elevator is stopped before buffer is reached
Only run, corresponding building is not required to the headroom and bottom space of extra increase elevator so as to realize, while need not increase
In the case of buffer cost, the purpose of more speed elevator can be just used.
Brief description of the drawings
Fig. 1 is the structured flowchart of the embodiment of the present invention；
Fig. 2 is the circuit theory diagrams of the embodiment of the present invention；
Fig. 3 is corresponding assembling schematic diagram of the car with 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 Fig. 5 left view；
Fig. 7 is Fig. 5 right view；
Fig. 8 is the explosive view of the rope sheave and ratchet in Fig. 4.
Embodiment
A kind of embodiment for subtracting stroke bidirectional speed limiting system, in Fig. 1 ~ 8, including subtract journey controller, limiter of speed,
Car top set position detection unit, car bottom set position detection unit, limiter of speed here are bidirectional speed limiter, so-called two-way limit
Fast device be exactly ascending for elevator and it is descending when the limiter of speed that can play a role, rope sheave 2 is equipped with by main axis on base 1
With ratchet 3, the both ends of main shaft are arranged on base 1 by bearing, and the rotation stop of rope sheave 2 is assemblied on main shaft, and steel is arranged with rope sheave 2
Cord.The diameter of ratchet 3 is less than the diameter of rope sheave 2, is rotatably equipped with ratchet 4 on the wheel face of rope sheave 2, ratchet 4 and rope sheave 2 it
Between be provided with torsion spring, torsion spring gives the torsion of ratchet 4 so that ratchet 4 rotates has the trend matched somebody with somebody with the neck card of ratchet 3 all the time,
When ratchet 4 is in free state, ratchet 4 can be in the state of clamping with ratchet 3, also rotated on rope sheave 2 and be provided with spine
Pawl location structure 6, ratchet location structure 6 have a top pressure end, and the top pressure end top pressure is on ratchet 4 so that ratchet 4 is in and put
The normal condition of ratchet 3 is opened, there is torsion spring between ratchet location structure 6 and rope sheave 2, torsion spring is that ratchet location structure 6 provides pressure
The power of tight ratchet 4, ratchet 4 is overcome torsion spring power thereon, keep the state separated with ratchet 3, be also rotatably equipped with rope sheave 2
Two gravity drop hammers 5, ratchet 4 and ratchet location structure 6 are in the side of rope sheave 2, and two gravity drop hammers 5 are in other the one of rope sheave 2
Side.Set-up mode of two gravity drop hammers 5 on rope sheave 2 is centrosymmetric mode, and the run-on point of gravity drop hammer 5 is not located at both ends,
One end quality of gravity drop hammer 5 is tup end, and smaller other end quality is hammer handle end, and the hammer handle end of a gravity drop hammer 5 is with restricting
Compression-spring device 11 is provided between wheel 2, compression-spring device 11 causes the tup end of gravity drop hammer 5 to be in the centre of rope sheave 2, at this
Be connected with connecting rod 10 between the tup portion of gravity drop hammer 5 and the hammer handle portion of another gravity drop hammer 5, the both ends of connecting rod 10 respectively with two
Gravity drop hammer 5 is be hinged, and in 2 normal rotation of rope sheave, in the presence of compression-spring device 11, the tup portion of two gravity drop hammers 5 is at
The centre of rope sheave 2.In 2 overspeed operation of rope sheave, under the influence of centrifugal force, two gravity drop hammers 5 can overcome compression-spring device
11 spring force is opened, and two tups can all turn to the edge of rope sheave 2, and two hammer handles are turned at the center of rope sheave 2.Determine in ratchet
There is 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 top pressure on bit architecture 6
The top of projection in trigger unit so that ratchet location structure 6 overcomes the power of its torsion spring to rotate, and ratchet location structure 6 compresses ratchet
4 so that ratchet 4 continues to rotate to the direction away from ratchet 3, and with the increase of rotation distance, ratchet location structure 6 can decontrol spine
Pawl 4, ratchet 4 are stuck in the presence of its torsion spring with ratchet 3, and after ratchet location structure 6 decontrols ratchet 4, ratchet 4 will
To cross ratchet location structure 6 and keep off ratchet location structure 6 in turn so that ratchet location structure 6 can not reset, at this moment, ratchet
The top pressure ratchet 4 in the presence of torsion spring power of location structure 6 so that ratchet 4 is reliably in the state with the buckle of ratchet 3.At this
Under kind state, if to contact the buckle between ratchet 4 and ratchet 3.So that ratchet 4 and ratchet location structure 6 reply mutual top
Pressure so that when ratchet 4 is maintained at the state separated with ratchet 3, it is possible to which moving ratchet 4 makes it turn to the direction away from ratchet 3
Dynamic lasting rotation, ratchet 4 will separate with ratchet location structure 6, the return in the presence of its torsion spring of ratchet location structure 6, this
Shi Fangkai ratchets 4, ratchet location structure 6 will position with ratchet 4, and both are returned to original state.In rope sheave 2 on base 1
Both sides are provided with brake plate device, and pull bar is provided with the keep plate of two brake plate devices, and one end of pull bar is located in braking
On plate, the two keep plates side relative with rope sheave 2 is medial surface, and another side is lateral surface, is set in the outside of keep plate
There is outer lateral spring, one end top pressure of outer lateral spring is on the lateral surface of keep plate, and the other end top pressure of outer lateral spring is in pull bar
On bulge loop on termination, the other end of pull bar joins on the wheel face of ratchet 3.When elevator rises, rope sheave 2 is toward a direction
Rotate, after ratchet 4 is fastened togather with ratchet 3, ratchet 3 follows rope sheave 2 to rotate, and ratchet 3 passes through a pull bar when rotating
Keep plate corresponding to drive presses to rope sheave 2, realizes the braking of rope sheave 2, and when being risen under elevator, rope sheave 2 rotates toward another direction,
After ratchet 4 and ratchet 3 are fastened togather, ratchet 3 follows rope sheave 2 to rotate, and ratchet 3 is driven when rotating by another pull bar
Another corresponding keep plate presses to rope sheave 2, realizes the braking of rope sheave 2.
It is convexly equipped with lifting release link 7 on ratchet 4, perpendicular to the wheel face of rope sheave 2, rope sheave 2 here is lifting release link 7
Wheel hub fills, and is just having wheel rim, is there is core wheel, is being linked to be an entirety by spoke between core wheel and wheel rim, lifting release link 7 is 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.Top pressure wheel 8 is fixed with by being located in 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, top pressure wheel 8 can top pressure lifting release link
7, that is, drive ratchet 4 its is rotated lasting rotation to the direction away from ratchet 3, ratchet 4 will divide with ratchet location structure 6
From at this moment the return in the presence of its torsion spring of ratchet location structure 6 decontrols ratchet 4, ratchet location structure 6 will be determined with ratchet 4
Position, both are returned to original state, realize automatically reseting for ratchet 4.
Because lifting release link 7 is through functional hole 9 on the hammer handle of gravity drop hammer 5, in motion process, lifting release link
7 can move relative to the hammer handle of gravity drop hammer 5, so functional hole 9 needs, with the avoidance part for avoiding lifting release link 7, to avoid
Part can cause lifting release link 7 to be moved freely relative to gravity drop hammer 5.
Coaxially it is fixedly installed disc 12 on wheel face of the ratchet 3 away from gravity drop hammer 5, disc 12 is sheet ring body, disc
Fixed calvus 16 is radially laid with 12 inner hole wall, fixed calvus 16 is fixed by screws on disc.The outer rim cloth of disc 7
Provided with connection sheet 13, connection sheet 13 is wholely set with disc 12, and connection sheet 13 and disc 12 are coplanar, in each connection sheet 13
Self-resetting switch 14 is fixed with, each self-resetting switch 14 is on a circumference, and this circumference is one of disc 12 concentric
Circle, the lever 15 of each self-resetting switch 14 stretch to inner side, and the free end of each lever 15 is on the circumference of one group of concentric circles respectively,
This group of concentric circles is the concentric circles of disc, and gravity drop hammer touches each self-resetting switch 14, lever successively in opening process
Long first touches, and is touched after lever is short.
Electromagnet is additionally provided with base 1, after powered up, electromagnet meeting top pressure gravity drop hammer so that two gravity drop hammers open,
Namely so that the heavier tup of gravity drop hammer turns to the outer rim of rope sheave, the forced brake of rope sheave is realized.
With reference to shown in Fig. 1, the signal output part connection of self-resetting switch 14 subtracts the car Control for Speed Limitation letter of journey controller
Number input, the brake signal output end for subtracting journey controller are used for the brake signal input for connecting elevator master control system.Sedan-chair
Railway carriage or compartment top set position detection unit is installed in rate controlling opening position at the top of elevator hoistways, and car bottom set position detection unit is installed in elevator
Shaft bottom rate controlling opening position, elevator hoistways top rate controlling opening position are not higher than well headroom buffer bottom surface, elevator hoistways bottom
Portion's rate controlling opening position is not less than shaft bottom buffer top surface；The signal output part connection of car top set position detection unit subtracts row
The car top set signal input part of range controller, the signal output part connection of car bottom set position detection unit subtract journey controller
Car bottom set signal input part.
It is illustrated in figure 2 the circuit theory diagrams provided by the invention for subtracting stroke bidirectional speed limiting system：
The journey controller that subtracts uses microcontroller U1, microcontroller U1 to use model STM32F103R8T6.
The limiter of speed uses self-resetting switch U2, and Self-resetting speed-limiting switch U2 is UKT self-resetting switch, installed in elevator
On limiter of speed, wherein Self-resetting speed-limiting switch U2 mechanical switch part is that the both ends of lever are connected to and subtract journey controller U1
Between J1-3 pins and J1com pins, Self-resetting speed-limiting switch U2 mechanical switch part one acts, and subtracts journey controller U1's
J1-3 pins just capture level change information, and so as to know, now car speed has exceeded the buffer normal speed to prestore.
Described car top set position detection unit uses the first travel switch S1, and car bottom set position detection unit uses
Second travel switch S2；First travel switch S1 is arranged on the well enclosure of top, and lift car outer wall relevant position is equiped with use
In with the first travel switch S1 coordinate bump against hit bow；Second travel switch S2 is arranged on the well enclosure of bottom, outside lift car
Wall relevant position is equiped with for coordinating what is bumped against to hit bow with the second travel switch S2.
As shown in figure 3, the first travel switch S1 is arranged on the well enclosure at the top of elevator hoistways, and it is not higher than well headroom
The bottom surface of buffer, the second travel switch S2 are arranged on the well enclosure of elevator hoistways bottom, and are buffered not less than shaft bottom
The top surface of device, the first travel switch S1, the second travel switch S2 are installed on same on the vertical line of horizontal plane, car C1
The corresponding first travel switch S1 of outer wall, the second travel switch S2 position be equiped with a vertical integral type and hit bow B1, hit
Bend B1 length close to the outer wall height of car, top, the bottom for hitting bow B1 are respectively set to the inclined inclined-plane of car walls, the
One stroke switch S1 lever is arranged to be lifted up an angle compared to horizontal plane, and the second travel switch S2 lever is arranged to
It is pressed with an angle downwards compared to horizontal plane, the angle is engaged with hitting the respective ramp at bow B1 both ends just, and first, second
Travel switch S1, S2 lever end are provided with a roller, for example hit bow B1 and rise to well headroom with car C1 and bump against first
During travel switch S1, the first travel switch S1 lever can be pushed down, when car leaves, the first travel switch S1 lever can bullet
Open, the angle of inclination of lever and the roller of lever end are provided to protect the first travel switch S1 in order to avoid being damaged, the second row
Cheng Kaiguan S2 are similarly.First, second travel switch S1, S2 is mechanical switch.
As Fig. 2, the first travel switch S1 are connected between microcontroller U1 J1com pins and J1-1 pins, the second row
Cheng Kaiguan S2 are connected between microcontroller U1 J1com pins and J1-2 pins, when the first travel switch S1 or the second stroke
Switch S2 is not hit bow B1 when being pressed onto, in closure state, when the first travel switch S1 or the second travel switch S2 is hit bow B1
When being pressed onto, in off-state, microcontroller U1 accordingly judges according to the level change on J1-1 pins, J1-2 pins.
In the present embodiment, microcontroller U1 brake signal output end J5-3 pins, J5com pins difference connecting brake
The YB pin of energization input two, it is electric on control brake YB.
The first travel switch S1, the second travel switch S2 use model S3BEL-1370, brake model
DQN090。
In car running, Self-resetting speed-limiting switch U2 monitors current car C1 in real time with the rotation of elevator governor
Speed；When car C1 is run to well headroom or shaft bottom, hit that bow B1 bumps against the first travel switch S1 or the second stroke is opened
When closing S2, the first travel switch S1 or the second travel switch S2 disconnect, and microcontroller U1 judges current runback after knowing the information
Position speed-limiting switch U2 status signal, if now Self-resetting speed-limiting switch U2 is normally off, illustrate elevator master control system reality
Showed normal deceleration, now car speed not over buffer desin speed, now microcontroller U1 be failure to actuate (microcontroller
Device U1 protection is that the speed for preventing car cushion at collision dangerous situation occurs beyond the desin speed of buffer)；If
Current Self-resetting speed-limiting switch U2 disconnects, and microcontroller U1 judges that current car speed has exceeded the specified speed of the buffer to prestore
Degree, control brake YB power-off at once, after brake YB power-off, damper brake locking, so as to brake car movement, make so as to realize
Corresponding building is not required to the headroom and bottom space of extra increase elevator, while need not increase the situation of buffer cost
Under, just can be using the purpose of the elevator of more speed.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (6)
1. one kind subtracts stroke bidirectional speed limiting system, including subtracts journey controller, limiter of speed, car top set position testing unit
Member, car bottom set position detection unit, the limiter of speed include base, and rope sheave and spine are equipped with by main axis on base
Wheel, the both ends of main shaft are arranged on base by bearing, and rope sheave is assemblied on main shaft, and the both sides of rope sheave are provided with system on base
Panel assembly is moved, is rotatably equipped with ratchet on the side of the wheel face of rope sheave, being provided between ratchet and rope sheave makes ratchet turning ratchet wheel
The ratchet torsion spring matched somebody with somebody with the neck card of ratchet, ratchet location structure, ratchet positioning knot are also rotatably equipped with the wheel face of rope sheave
Positioning torsion spring is provided between structure and rope sheave, top pressure end and the pawl spring top pressure of ratchet location structure coordinate, rope sheave wheel face
Opposite side is also rotatably equipped with two gravity drop hammers, be additionally provided with base after powered up top pressure gravity drop hammer so that gravity drop hammer opens
Electromagnet, be convexly equipped with the trigger unit of ratchet location structure and pushed away when the tup of gravity drop hammer turns to the outer rim of rope sheave with power hammer
The top of press-fit, make being convexly equipped with ratchet when the hammer handle of gravity drop hammer turns to the wheel rim of rope sheave with the hammer handle top pressure of gravity drop hammer
Ratchet separates with ratchet and causes ratchet location structure and the lifting release link of ratchet pawl reset, it is characterised in that：Described spine
Wheel is coaxially fixedly installed disc on the wheel face away from gravity drop hammer, and the outer rim position of disc is laid with self-resetting switch, it is each from
Reset switch is on the circumference of a concentric circles of disc, and the lever of each self-resetting switch stretches to inner side, the freedom of each lever
End is on the circumference of one group of concentric circles of disc respectively, and gravity drop hammer touches each self-resetting switch successively in opening process,
Car top set position detection unit is installed in rate controlling opening position at the top of elevator hoistways, and car bottom set position detection unit is installed in electricity
Terraced shaft bottom rate controlling opening position；The car that the signal output part connection of car top set position detection unit subtracts journey controller is put
Push up signal input part, car bottom set position detection unit signal output part connection subtract journey controller car bottom set signal it is defeated
Enter end, the signal output part connection of self-resetting switch subtracts the car Control for Speed Limitation signal input part of journey controller, subtracts stroke control
The brake signal output end of device processed is used for the brake signal input for connecting elevator master control system.
2. according to claim 1 subtract stroke bidirectional speed limiting system, it is characterised in that：Described disc is sheet ring
Body, fixed calvus is radially laid with 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 speed limiting system, it is characterised in that：Described Self-resetting is opened
Pass is fixed on disc by connection sheet, and each connection sheet is radially extended and is wholely set with disc.
4. according to claim 1 subtract stroke bidirectional speed limiting system, it is characterised in that：Described Self-resetting speed limit is opened
Connection is connected on the car Control for Speed Limitation signal input part for subtracting journey controller.
5. subtract stroke bidirectional speed limiting system according to claim 1 or 4, it is characterised in that：Described car top set
Position detection unit uses the first travel switch, and car bottom set position detection unit uses the second travel switch, and the first stroke is opened
Close and be arranged on the well enclosure of top, lift car outer wall relevant position/be equiped with for coordinating what is bumped against with the first travel switch
Hit bow；Second travel switch is arranged on the well enclosure of bottom, and lift car outer wall relevant position, which is equiped with, to be used for and the second stroke
Switch coordinates what is bumped against to hit bow.
6. subtract stroke bidirectional speed limiting system according to claim 1 or 4, it is characterised in that：It is described to subtract Stroke Control
Device uses microcontroller, the brake control that the brake signal output end of microcontroller is used to connect in elevator master control system
Signal input part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692470.3A CN105197718B (en) | 2015-10-23 | 2015-10-23 | Subtract stroke bidirectional speed limiting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692470.3A CN105197718B (en) | 2015-10-23 | 2015-10-23 | Subtract stroke bidirectional speed limiting system |
Publications (2)
| Publication Number | Publication Date |
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| CN105197718A CN105197718A (en) | 2015-12-30 |
| CN105197718B true CN105197718B (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510692470.3A Active CN105197718B (en) | 2015-10-23 | 2015-10-23 | Subtract stroke bidirectional speed limiting system |
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| Country | Link |
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| CN (1) | CN105197718B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6932261B2 (en) * | 2018-07-24 | 2021-09-08 | 三菱電機株式会社 | Elevator governor |
| CN111268532B (en) | 2018-12-04 | 2022-08-30 | 奥的斯电梯公司 | Overspeed protection switch, overspeed governor assembly, and elevator system |
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| CN1127723A (en) * | 1994-10-20 | 1996-07-31 | 三菱电机株式会社 | Elevator governor |
| CN101061053A (en) * | 2004-11-19 | 2007-10-24 | 东芝电梯株式会社 | Speed governor for elevator |
| CN103387168A (en) * | 2012-05-10 | 2013-11-13 | 戴开煌 | Elevator emergency electric control protecting system |
| CN203450987U (en) * | 2013-09-02 | 2014-02-26 | 苏州尼隆电梯部件有限公司 | Elevator speed limiter |
| CN203865758U (en) * | 2014-02-24 | 2014-10-08 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less automatic anti-slipping safety speed limiting system |
| CN205257714U (en) * | 2015-10-23 | 2016-05-25 | 西继迅达（许昌）电梯有限公司 | Subtract two -way automatic speed -limiting system of stroke |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100716863B1 (en) * | 2000-05-10 | 2007-05-09 | 주식회사 쉰들러 엘리베이터 | Elevator governor which has emergency stopping device for up-down-direction |
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- 2015-10-23 CN CN201510692470.3A patent/CN105197718B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127723A (en) * | 1994-10-20 | 1996-07-31 | 三菱电机株式会社 | Elevator governor |
| CN101061053A (en) * | 2004-11-19 | 2007-10-24 | 东芝电梯株式会社 | Speed governor for elevator |
| CN103387168A (en) * | 2012-05-10 | 2013-11-13 | 戴开煌 | Elevator emergency electric control protecting system |
| CN203450987U (en) * | 2013-09-02 | 2014-02-26 | 苏州尼隆电梯部件有限公司 | Elevator speed limiter |
| CN203865758U (en) * | 2014-02-24 | 2014-10-08 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less automatic anti-slipping safety speed limiting system |
| CN205257714U (en) * | 2015-10-23 | 2016-05-25 | 西继迅达（许昌）电梯有限公司 | Subtract two -way automatic speed -limiting system of stroke |
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| Publication number | Publication date |
|---|---|
| CN105197718A (en) | 2015-12-30 |
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Inventor after: Qi Yongqi Inventor after: Chen Weidong Inventor after: Li Jieping Inventor after: Yuan Jing Inventor after: Cui Jiangyu Inventor before: Sun Hongliang Inventor before: Han Yunfei Inventor before: Zhou Yan Inventor before: Xie Dongdong |
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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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| CP01 | Change in the name or title of a patent holder |