CN105197714B - Subtract the unidirectional speed limiting system of stroke - Google Patents
Subtract the unidirectional speed limiting system of stroke Download PDFInfo
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- CN105197714B CN105197714B CN201510692435.1A CN201510692435A CN105197714B CN 105197714 B CN105197714 B CN 105197714B CN 201510692435 A CN201510692435 A CN 201510692435A CN 105197714 B CN105197714 B CN 105197714B
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Abstract
The invention discloses one kind to subtract the unidirectional speed limiting system of stroke, encoder is installed on the main shaft of its limiter of speed, rope sheave is assemblied on main shaft, pawl is rotatably equipped on the one side of the wheel face of rope sheave, the pawl torsional spring for matching somebody with somebody the card slot card of pawl turning ratchet wheel and ratchet is provided between pawl and rope sheave, pawl location structure is also rotatably equipped on the wheel face of rope sheave, ratchet is 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 inside, the free end of each lever is in respectively on the circumference of one group of concentric circles of disc, gravity drop hammer touches each self-resetting switch successively in opening process.The present invention can realize the headroom and bottom space that corresponding building is made to be not required to additionally increase elevator, while in the case of buffer cost need not be increased, it just can be using the purpose of higher speed elevator.
Description
Technical field
Subtract stroke unidirectionally certainly the present invention relates to a kind of for limiting the speed limiting system of elevator speed more particularly to one kind
Dynamic speed limiting system.
Background technology
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 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 generally in 2.5m/s with descending stair speed, buffer of elevator is selected according to rated speed of lift at present.
Buffer 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 car and counterweight.When elevator is in being moved upwardly or downwardly, due to wire cable rupture, traction frictional force, embrace
Lock brake force deficiency or control system failure and when surmounting terminal stop bottom or top layer, will by buffer cushioning effect,
Bottom is directly hit to avoid lift car or counterweight or is rushed to summit, and protects the safety of passenger and equipment.
If a kind of technical solution can be provided, it is being not required to additionally increase the headroom and bottom space of elevator, while not
It needs in the case of increasing buffer cost, building can just be made to use the elevator of higher speed, it is tired that current this will be abolished
Border.This requires lift car lowers speed when running to above buffer, and limiter of speed can be by the speed of elevator
Degree reduces.
Have a kind of such limiter of speed in the prior art, including pedestal, on pedestal by main axis be equipped with rope sheave and
Ratchet, the both ends of main shaft are arranged on by bearing on pedestal, and rope sheave rotation stop is assemblied on main shaft, and one end of main shaft is equipped with coding
Device is arranged with steel wire rope on rope sheave.The diameter of ratchet is less than the diameter of rope sheave, and pawl is rotatably equipped on the wheel face of rope sheave,
Torsional spring is provided between pawl and rope sheave, torsional spring is to Pawl Torsion so that there is pawl rotation the card slot card with ratchet to match somebody with somebody always
Trend, when pawl is in free state, pawl and ratchet can be in the state of clamping, also rotate and set on rope sheave
There is pawl location structure, pawl location structure tool is there are one top pressure end, and the top pressure end top pressure is on pawl so that pawl is in and puts
The normal condition of ratchet is opened, there is torsional spring between pawl location structure and rope sheave, torsional spring provides for pawl location structure and compresses spine
The power of pawl makes pawl overcome torsional spring power thereon, keeps state separated with ratchet, gravity also there are two rolling assemblings on rope sheave
Hammer, pawl and pawl location structure are in the one side of rope sheave, and two gravity drop hammers are in the other side of rope sheave.Two gravity drop hammers exist
Set-up mode on rope sheave is centrosymmetric mode, and the run-on point of gravity drop hammer is not located at both ends, one end quality of gravity drop hammer compared with
Greatly tup end, other end quality is smaller for hammer handle end, and compression-spring device is provided between the hammer handle end of gravity drop hammer and rope sheave,
Compression-spring device causes the tup end of gravity drop hammer to be in the centre of rope sheave, in the tup portion of the gravity drop hammer and another gravity drop hammer
Hammer handle portion between be connected with connecting rod, the both ends of connecting rod are hinged respectively with two gravity drop hammers, in rope sheave normal rotation, in compression spring
Under the action of device, the tup portion of two gravity drop hammers is at the centre of rope sheave.In rope sheave overspeed operation, in centrifugal force
Under the action of, 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 handle is turned at the center of rope sheave.On pawl location structure there is the trigger unit through rope sheave, turned in the tup of gravity drop hammer
During the outer rim of rope sheave, gravity drop hammer is to the top of projection in top pressure trigger unit so that pawl location structure overcomes the power of its torsional spring to turn
Dynamic, pawl location structure compresses pawl so that and pawl continues to rotate to the direction away from ratchet, with the increase of rotation distance,
Pawl location structure can decontrol pawl, and pawl is stuck under the action of its torsional spring with ratchet, when pawl location structure is decontroled
After pawl, pawl will cross pawl location structure and keep off pawl location structure in turn so that pawl location structure cannot answer
Position, at this moment, pawl location structure top pressure pawl under the action of torsional spring power so that pawl is reliably in the shape with ratchet buckle
State in this state, makes it rotate lasting rotation to the direction away from ratchet, pawl will be determined with pawl if moving pawl
Bit architecture separates, and at this moment pawl location structure return under the action of its torsional spring decontrols pawl, pawl location structure will be with pawl
Positioning.When pawl is reliably in the state with ratchet buckle, rope sheave drives pawl wheel by pawl.In rope on pedestal
The one side of wheel is rotatably equipped with brake plate, and connecting rod, one end of connecting rod and brake plate are provided between the side of brake plate and wheel face
Be hinged at, the other end of connecting rod and the wheel face of ratchet are hinged, and after pawl and ratchet are fastened togather, ratchet follows rope sheave
It rotates, ratchet drives brake plate to press to rope sheave when rotating by connecting rod, realizes the braking of rope sheave.Electricity is additionally provided on pedestal
Magnet, the meeting top pressure gravity drop hammer when electromagnet is powered so that gravity drop hammer opens, and ratchet and pawl is allowed to be fastened togather, and realizes rope
The forced brake of wheel.
The content of the invention
The object of the present invention is to provide one kind to subtract the unidirectional speed limiting system of stroke, so that limiter of speed can pass through braking
The mode of rope sheave is car speed limit, so that corresponding building is not required to additionally increase the headroom and bottom space of elevator, simultaneously
In the case of buffer cost need not be increased, the elevator of higher speed can be just used.
In order to achieve the goal above, the present invention adopts the following technical scheme that：One kind subtracts the unidirectional speed limiting system of stroke, bag
It includes and subtracts journey controller, limiter of speed, car top set position detection unit, car bottom set position detection unit, the limiter of speed bag
It includes pedestal, rope sheave and ratchet is equipped with by main axis on pedestal, the both ends of main shaft are arranged on by bearing on pedestal, rope sheave
It is assemblied on main shaft, the one side of rope sheave is provided with brake plate device on pedestal, is rotatably equipped on the one side of the wheel face of rope sheave
Pawl is provided with the pawl torsional spring for matching somebody with somebody the card slot card of pawl turning ratchet wheel and ratchet, in the wheel of rope sheave between pawl and rope sheave
Pawl location structure is also rotatably equipped on face, positioning torsional spring, pawl positioning knot are provided between pawl location structure and rope sheave
The top pressure end of structure coordinates with pawl spring top pressure, and the opposite side also rolling assembling of rope sheave wheel face is there are two gravity drop hammer, on pedestal
The electromagnet that top pressure gravity drop hammer after powered up causes gravity drop hammer to open is additionally provided with, is convexly equipped in the trigger unit of pawl 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 on pawl in gravity drop hammer
Hammer handle turn to rope sheave wheel rim when with the hammer handle top pressure of gravity drop hammer pawl is separated with ratchet and cause pawl location structure and
The lifting release link of ratchet pawl reset, it is characterised in that：The ratchet is coaxially fixedly installed dish on the wheel face away from gravity drop hammer
Disk, the outer rim position of disc are laid with self-resetting switch, and each self-resetting switch is on the circumference of a concentric circles of disc,
The lever of each self-resetting switch stretches to inside, and the free end of each lever is in respectively on the circumference of one group of concentric circles of disc, weight
Power hammer touches each self-resetting switch successively in opening process, and car top set position detection unit is installed at the top of elevator shaft
At rate controlling position, car bottom set position detection unit is installed at the rate controlling position of elevator shaft bottom；Car top set position detection
The signal output part connection of unit subtracts the car top set signal input part of journey controller, the letter of car bottom set position detection unit
The connection of number output terminal subtracts the car bottom set signal input part of journey controller, and the signal output part connection of self-resetting switch subtracts stroke
The car Control for Speed Limitation signal input part of controller subtracts the brake signal output terminal of journey controller for connecting elevator master control system
The brake signal input terminal of 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 switch is fixed on by connection sheet on disc, each connection sheet radially extend and with disc one
It sets.
The self-resetting switch is connected to the car Control for Speed Limitation signal input part for subtracting journey controller.
The 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 mounted on the well enclosure of top, and lift car outer wall corresponding position/be equiped with is for the
What one stroke switch cooperation was bumped against hits bow；Second travel switch is mounted on the well enclosure of bottom, lift car outer wall corresponding position
It is equiped with to hit bow with what the cooperation of the second travel switch was bumped against.
Using microcontroller, the brake signal output terminal of microcontroller is used to connect elevator master control the journey controller that subtracts
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 limiter of speed acts at this time, 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, corresponding so as to fulfill making
Building is not required to additionally increase the headroom and bottom space of elevator, while in the case of buffer cost need not be increased, just
The purpose of higher speed elevator can be used.Disc is provided on 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 inside, respectively
The free end of lever is in respectively on the circumference of one group of concentric circles of disc, 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 car Control for Speed Limitation unit acts at this time,
Subtract journey controller and output signal to elevator master control system at once, control elevator brake, elevator is made to stop before buffer is reached
It only runs, so as to fulfill making accordingly to build the headroom and bottom space for being not required to additionally increase elevator, while need not increase
In the case of buffer cost, the purpose of higher speed elevator can be just used.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention；
Fig. 2 is the circuit diagram 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 the left view of Fig. 5；
Fig. 7 is the right view of Fig. 5；
Fig. 8 is the explosive view of the rope sheave and ratchet in Fig. 4.
Specific embodiment
A kind of embodiment for subtracting the unidirectional speed limiting system of stroke, 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 is unidirectional limiter of speed, limiter of speed
Rope sheave 2 and ratchet 3 are equipped with by main axis on pedestal 1, the both ends of main shaft are arranged on by bearing on pedestal 1, and rope sheave 2 stops
Turn to be assemblied on main shaft, one end of main shaft is equipped with encoder, and the one side of rope sheave 2 is provided with brake plate device on pedestal 1, restricts
Steel wire rope is arranged on wheel 2.The diameter of ratchet 3 is less than the diameter of rope sheave 2, and pawl 4 is rotatably equipped on the wheel face of rope sheave 2,
Torsional spring is provided between pawl 4 and rope sheave 2, torsional spring gives pawl 4 torsion so that pawl 4 rotates the card slot having always with ratchet 3
Block the trend matched somebody with somebody, when pawl 4 is in free state, pawl 4 can be in the state of clamping with ratchet 3, on rope sheave 2 also
Rotation is provided with pawl location structure, and pawl location structure tool is there are one top pressure end, and the top pressure end top pressure is on pawl 4 so that
Pawl 4 is in the normal condition for decontroling ratchet 3, has torsional spring between pawl location structure and rope sheave 2, and torsional spring is pawl positioning knot
Structure provides the power for compressing pawl 4, and pawl 4 is made to overcome torsional spring power thereon, keeps and 3 separated state of ratchet, also turns on rope sheave 2
Gravity drop hammer 5 there are two assembling is moved, pawl 4 and pawl location structure are in the one side of rope sheave 2, and two gravity drop hammers 5 are in rope sheave 2
Other 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 other end quality is smaller for hammer handle end, the hammer handle end of a gravity drop hammer 5
Compression-spring device 11 is provided between rope sheave 2, compression-spring device 11 causes the tup end of gravity drop hammer 5 to be in the centre of rope sheave 2,
Be connected with connecting rod 10 between the tup portion of the 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 hammers 5 are hinged, and in 2 normal rotation of rope sheave, under the action of compression-spring device 11, the tup portion of two gravity drop hammers 5 is all
It is in 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
The spring force of device 11 opens, 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.In spine
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 right on pawl location structure
The top of projection in top pressure trigger unit so that pawl location structure overcomes the power of its torsional spring to rotate, and pawl location structure compresses spine
Pawl 4 so that pawl 4 continues to rotate to the direction away from ratchet 3, and with the increase of rotation distance, pawl location structure can be decontroled
Pawl 4, pawl 4 are stuck under the action of its torsional spring with ratchet 3, and after pawl location structure decontrols pawl 4, pawl 4 is just
Pawl location structure can be crossed and keep off pawl location structure in turn so that pawl location structure cannot reset, and at this moment, pawl is fixed
Bit architecture top pressure pawl 4 under the action of torsional spring power so that pawl 4 is reliably in the state being buckled with ratchet 3.In this shape
Under state, if to contact the buckle between pawl 4 and ratchet 3.So that pawl 4 and pawl location structure reply mutual top pressure, make
Pawl 4 when being maintained at 3 separated state of ratchet, it is possible to move pawl 4 it made to be rotated to the direction away from ratchet 3 and continue
It rotates, pawl 4 will be separated with pawl location structure, at this moment pawl location structure return under the action of its torsional spring decontrols spine
Pawl 4, pawl location structure will be positioned with pawl, and the two is returned to original state.
It is convexly equipped with lifting release link 7 on pawl 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 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, top pressure wheel 8 can top pressure lifting release link
7, that is, drive pawl 4 that its is made to rotate lasting rotation to the direction away from ratchet 3, pawl 4 will divide with pawl location structure
From, at this moment pawl location structure return under the action of its torsional spring decontrols pawl 4, pawl location structure will be positioned with pawl 4,
The two is returned to original state, realizes automatically reseting for pawl 4.
Since lifting release link 7 is through functional hole 9 on the hammer handle of gravity drop hammer 5, during the motion, lifting release link
7 can move compared with 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 compared with 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 on 12 inner hole wall, fixed calvus 16 is fixed by screws on disc.The outer rim of disc 12
Connection sheet 13 is laid with, connection sheet 13 is wholely set with disc 12, and connection sheet 13 and disc 12 are coplanar, each connection sheet 13
On be fixed with self-resetting switch 14, each self-resetting switch 14 is on a circumference, this circumference is same for one of disc 12
The heart is justified, and the lever 15 of each self-resetting switch 14 stretches to inside, and the free end of each lever 15 is in the circumference of one group of concentric circles respectively
On, this group of concentric circles is the concentric circles of disc, and gravity drop hammer touches each self-resetting switch 14, thick stick successively in opening process
First touching for bar length, touches after lever is short.
Electromagnet is additionally provided on pedestal 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 terminal, the brake signal output terminal for subtracting journey controller are used to connect the brake signal input terminal of elevator master control system.Sedan-chair
Compartment top set position detection unit is installed at the top of elevator shaft at rate controlling position, and car bottom set position detection unit is installed in elevator
At shaft bottom rate controlling position, not higher than well headroom buffer bottom surface, elevator shaft bottom at rate controlling position at the top of elevator shaft
It is not less than shaft bottom buffer top surface at portion rate controlling position；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 diagram provided by the invention for subtracting stroke bidirectional automatic anti-running vehicle speed limiting system：
The journey controller that subtracts uses model STM32F103R8T6 using microcontroller U1, microcontroller U1.
The limiter of speed uses self-resetting switch U2, and self-resetting switch U2 is UKT self-resetting switch, mounted on elevator speed limit
On device, the both ends of mechanical switch component, that is, lever of wherein self-resetting switch U2 are connected to the J1-3 pins for subtracting journey controller U1
Between J1com pins, as soon as the mechanical switch component of self-resetting switch U2 acts, the J1-3 pins for subtracting journey controller U1 are caught
Level change information is grasped, so as to know that car speed at this time has been more than the buffer normal speed that prestores.
The 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 mounted on the well enclosure of top, and the installing of lift car outer wall corresponding position is useful
In with the first travel switch S1 cooperation bump against hit bow；Second travel switch S2 is mounted on the well enclosure of bottom, outside lift car
Wall corresponding position is equiped with to hit bow with what the second travel switch S2 cooperations were bumped against.
As shown in figure 3, the first travel switch S1 is mounted on the well enclosure at the top of elevator shaft, and not higher than well headroom
The bottom surface of buffer, the second travel 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, the first travel switch S1, the second travel switch S2 are installed on same on the vertical line of horizontal plane, car C1
Outer wall correspond to the first travel switch S1, the second travel switch S2 position installing there are one vertical integral type to hit bow B1, hit
Bend B1 length close to the outer wall height of car, top, the lower part for hitting bow B1 are respectively set to the inclined inclined-plane of car walls, the
The lever of one stroke switch S1 is arranged to be lifted up an angle compared to horizontal plane, and the lever of the second travel switch S2 is arranged to
It being pressed downward compared to horizontal plane there are one angle, the angle is engaged just with hitting the respective ramp at bow B1 both ends, and first, second
The lever end of travel switch S1, S2 are both provided with an idler wheel, for example hit bow B1 and rise to well headroom with car C1 and bump against first
During travel switch S1, the lever of the first travel switch S1 can be pushed down, when car leaves, the lever of the first travel switch S1 can bullet
It opens, the angle of inclination of lever and the idler wheel of lever end are provided to the first travel switch S1 of protection in order to avoid being damaged, the second row
Cheng Kaiguan S2 are similarly.First, second travel switch S1, S2 is mechanical switch.
If Fig. 2, the first travel switch S1 are connected between the J1com pins of microcontroller U1 and J1-1 pins, the second row
Cheng Kaiguan S2 are connected between the J1com pins of microcontroller U1 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 in J1-1 pins, J1-2 pins.
In the present embodiment, the brake signal output terminal J5-1 pins of microcontroller U1, J5-2 pins difference connecting brake
Two pin of energization input of YB, powers on for control brake YB.
The first travel switch S1, the second travel switch S2 are using model S3BEL-1370, brake model
DQN090。
In car operational process, self-resetting switch U2 monitors the speed of current car C1 with the rotation of elevator governor in real time
Degree；When car C1 is run to well headroom or shaft bottom, hit bow B1 and bump against the first travel switch S1 or the second travel switch S2
When, the first travel switch S1 or the second travel switch S2 are disconnected, and microcontroller U1 judges that current Self-resetting is opened after knowing the information
The status signal of U2 is closed, if self-resetting switch U2 is normally off at this time, illustrates that elevator master control system realizes normal deceleration,
Car speed does not exceed the desin speed of buffer at this time, at this time microcontroller U1 be failure to actuate (microcontroller U1 protection be
Prevent the speed of car cushion at collision from dangerous situation occur beyond the desin speed of buffer)；If current Self-resetting is opened
It closes U2 to disconnect, microcontroller U1 judges that current car speed has been more than the buffer normal speed to prestore, at once control braking
Device YB is powered off, and after brake YB power-off, so as to brake car movement, volume is not required to so as to fulfill making accordingly to build for damper brake locking
The outer headroom and bottom space for increasing elevator, while in the case of buffer cost need not be increased, just can use higher
The purpose of the elevator of speed.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention described should be subject to the protection scope in claims.
Claims (6)
1. one kind subtracts the unidirectional speed limiting system of stroke, including subtracting journey controller, limiter of speed, car top set position testing unit
Member, car bottom set position detection unit, the limiter of speed include pedestal, are equipped with rope sheave and spine by main axis on pedestal
Wheel, the both ends of main shaft are arranged on by bearing on pedestal, and rope sheave is assemblied on main shaft, and the one side of rope sheave is provided with system on pedestal
Movable plate device is rotatably equipped with pawl on the one side of the wheel face of rope sheave, and being provided between pawl and rope sheave makes pawl turning ratchet wheel
The pawl torsional spring matched somebody with somebody with the card slot card of ratchet is also rotatably equipped with pawl location structure, pawl positioning knot on the wheel face of rope sheave
Positioning torsional spring is provided between structure and rope sheave, top pressure end and the pawl spring top pressure of pawl location structure coordinate, rope sheave wheel face
Opposite side also rolling assembling there are two gravity drop hammer, be additionally provided on pedestal after powered up top pressure gravity drop hammer so that gravity drop hammer opens
Electromagnet, be convexly equipped in the trigger unit of pawl 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 makes when being convexly equipped on pawl in the wheel rim of the hammer handle steering rope sheave of gravity drop hammer with the hammer handle top pressure of gravity drop hammer
Pawl separates with ratchet and causes pawl location structure and the lifting release link of ratchet pawl reset, it is characterised in that：The 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 inside, the freedom of each lever
End is in respectively on the circumference of one group of concentric circles of disc, and gravity drop hammer touches each self-resetting switch successively in opening process,
Car top set position detection unit is installed at the top of elevator shaft at rate controlling position, and car bottom set position detection unit is installed in electricity
At terraced shaft bottom rate controlling 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 terminal of device processed is used to connect the brake signal input terminal of elevator master control system.
2. according to claim 1 subtract the unidirectional speed limiting system of stroke, it is characterised in that：The disc is sheet ring
Body, fixed calvus is radially laid on the inner hole wall of disc, and fixed calvus is fixed by screws on disc.
3. according to claim 1 or 2 subtract the unidirectional speed limiting system of stroke, it is characterised in that：The Self-resetting is opened
Pass is fixed on by connection sheet on disc, and each connection sheet is radially extended and is wholely set with disc.
4. according to claim 1 subtract the unidirectional speed limiting system of stroke, it is characterised in that：The self-resetting switch connects
It is connected on the car Control for Speed Limitation signal input part for subtracting journey controller.
5. subtract the unidirectional speed limiting system of stroke according to claim 1 or 4, it is characterised in that：The 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
It closes and is mounted on the well enclosure of top, lift car outer wall corresponding position is equiped with to hit with what the cooperation of the first travel switch was bumped against
Bow；Second travel switch is mounted on the well enclosure of bottom, and lift car outer wall corresponding position is equiped with to open with the second stroke
Close cooperation collision hits bow.
6. subtract the unidirectional speed limiting system of stroke according to claim 1 or 4, it is characterised in that：It is described to subtract Stroke Control
Device uses microcontroller, and the brake signal output terminal of microcontroller is used to connect the brake control in elevator master control system
Signal input part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692435.1A CN105197714B (en) | 2015-10-23 | 2015-10-23 | Subtract the unidirectional speed limiting system of stroke |
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| Application Number | Priority Date | Filing Date | Title |
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| CN105197714B true CN105197714B (en) | 2018-05-22 |
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| CN104986643A (en) * | 2015-08-06 | 2015-10-21 | 日立电梯（中国）有限公司 | Elevator limit protection control device and method |
| CN205257703U (en) * | 2015-10-23 | 2016-05-25 | 西继迅达（许昌）电梯有限公司 | Subtract one -way automatic speed -limiting system of stroke |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| CN101061053A (en) * | 2004-11-19 | 2007-10-24 | 东芝电梯株式会社 | Speed governor for elevator |
| CN101258088A (en) * | 2006-07-26 | 2008-09-03 | 维托公开股份有限公司 | Extended hoistway backup application |
| CN103387168A (en) * | 2012-05-10 | 2013-11-13 | 戴开煌 | Elevator emergency electric control protecting system |
| CN102701036A (en) * | 2012-06-21 | 2012-10-03 | 长沙鑫盛电梯有限公司 | Measurement and control early warning system for elevator |
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| CN105197714A (en) | 2015-12-30 |
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Inventor after: Liu Gang Inventor after: Li Jianjun Inventor after: Wang Yongqiang Inventor after: Yan Wenbo Inventor after: Yang Yefei Inventor after: Cui Jiangyu Inventor before: Sun Hongliang Inventor before: Li Jianjun Inventor before: Yan Wenbo Inventor before: Yang Yefei |
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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. |