CN106744194B - Lifting device levels electromagnetic lever-rack leveling controls safety catch - Google Patents
Lifting device levels electromagnetic lever-rack leveling controls safety catch Download PDFInfo
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- CN106744194B CN106744194B CN201611221157.2A CN201611221157A CN106744194B CN 106744194 B CN106744194 B CN 106744194B CN 201611221157 A CN201611221157 A CN 201611221157A CN 106744194 B CN106744194 B CN 106744194B
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- Prior art keywords
- rack
- lifting device
- movable rack
- lever
- movable
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0461—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with rack and pinion gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
- B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
- B66B9/022—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable by rack and pinion drives
Abstract
A kind of lifting device levels electromagnetic lever-rack leveling control safety catch, including load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, the control device of the operating mechanism of movable rack, hand-operating unlocking mechanism；The operating mechanism manipulation activities rack gear that movable rack directly contacts the movable rack perhaps configured by middle transition component contact load-bearing horizontal direction after entering on-position with the main load-carrying members of lifting device carriage, which is moved horizontally or stopped on orbit hole, is maintained at the application position including engaging with lifting device drive rack or the free position that is completely disengaged and having one section of gap with lifting device drive rack；Save the cost, energy saving is conducive to using lever mated electromagnetism puller；Play it is energy saving, save the useful space, significantly improve langding accuracy and safeguard protection braking quality beneficial effect.
Description
Technical field
The present invention relates to lifting device safety catch fields, more particularly to a kind of lifting device levels electromagnetic lever
Rack gear leveling controls safety catch.
Background technique
The power device of rack-and-pinion lifting device is mounted in equipment carriage, and how alleviator is self-possessed, and is improved effective
Transport power is the needing ongoing effort of the task；The leveling of lifting device controls precision, is an important technical indicator, and
New edition standard is more tightened up than old edition standard requirements, how to be the class for being worth research with the requirement that suitable method reaches standard
Topic；The existing safety catch of rack-and-pinion lifting device is by various methods, driving gear to be made to stop operating to come in fact
It is existing；But if problem, such as gear teeth damage occur for driving gear, even if gear does not rotate, it cannot guarantee that reliable braking；For
Ensure safety, pinion and-rack lifting device, which must configure reliably to cope with, occurs problem and similar including driving gear
The safety catch of safety problem.
Summary of the invention
The purpose of the present invention, is to provide that a kind of self weight is relatively light, langding accuracy is more excellent, copes with including driving gear
The safety catch of problem and similar safety problem.
Fig. 1 is the structural schematic diagram that a kind of lifting device levels electromagnetic lever-rack leveling controls safety catch, figure
Show that direction is from 60 top of rack-and-pinion lifting device carriage, sheds top car outside plate finding viewed from above, so for
Lifting device drive rack 18 can only see its top, and right movable rack 17 has carried out broken section processing, can see it clearly
The internal fit structure (being connect with an arm of right double-arm lever 35) with right double-arm lever 35, right movable rack combination and left activity
Rack combination be with rack gear among the vertical median plane perpendicular to rack gear projection plane that indicates of center chain-dotted line be symmetrical flat
The mirror symmetric figure in face, bracket 7 are half section, and the state that movable rack is engaged with lifting device drive rack is shown in Fig. 1,
The levels electromagnetic pulls safety catch to be in application position state；Fig. 2 is rack-and-pinion lifting device shown in FIG. 1
Levels electromagnetic pulls schematic diagram of the releasing braking in free state of safety catch, the projection side of projecting direction and Fig. 1
To identical；Fig. 3 is the A-A partial sectional view of Fig. 1, direction be seen in the A-A section eyes front (in terms of rack gear direction), drawing from
The front of rail assembly, movable rack, movable rack, left double-arm lever 34, right both arms thick stick with the operating mechanism of movable rack
The vertical section direction of bar 35 shows that the connection relationship between them, the state of display are movable rack and lifting device drive rack
Engage the state of braking；Fig. 4 is at the movable rack that view direction same as shown in Figure 3 is shown and lifting device drive rack
In the schematic diagram of discrete state；Fig. 5 is the B-B partial sectional view of Fig. 1, and direction is to be turned right from B-B section (toward centerline direction
See) seen in, drawing is from the vertical section direction of rail assembly, movable rack, movable rack, it is shown that the behaviour of they and movable rack
The connection relationship of the left double-arm lever 34 of vertical mechanism；A kind of lifting device levels electromagnetic lever-rack leveling control safety arrestment dress
Set (hereinafter referred to as levels electromagnetic lever-rack leveling control safety catch), characterized in that device is configured by horizontal direction,
For installation site in lifting device car top or bottom or other reasonable positions, composition includes load-supporting part, rail
Road component, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, movable rack operating mechanism control
Device processed, hand-operating unlocking mechanism；The load-supporting part includes direct load-supporting part or middle transition load-supporting part；Described
Rail assembly includes the horizontal rail that track window aperture 12, guide plate 29, load-supporting part and upper rail 16 and lower rail 19 are formed, described
Movable rack include right movable rack 17 and left movable rack 13, the right movable rack 17 and left movable rack 13 pass through
Track window aperture 12, the tooth form for the part of movable rack being associated with the drive rack 18 of lifting device is in can be with lifting
The drive rack 18 of equipment engages perhaps isolated position by the way that certain determinations are moved horizontally or be maintained on rail assembly
Position on realize and the engagement of drive rack 18 or separate, the position of the determination, including with lifting device sliding tooth
The application position of item engagement or the free position that a bit of gap is kept completely separate and had with lifting device drive rack, institute
That states has a bit of gap, refers to that drive rack and movable rack tooth top interplanar corresponding thereto have the gap 2~5mm；Activity
Rack gear and the fit dimension of horizontal rail are dynamic cooperation, and contact surface is smooth low coefficient of friction surfaces, to be conducive to movable teeth
The movement of item, right movable rack 17 and 13 top of left movable rack are direct with load-supporting part and upper rail 16 after entering on-position
Contact load-bearing；The position-limit mechanism of the movable rack includes, on the inner face for the part of movable rack being associated with guide rail
Side or at least one direction of lower section are provided with guide groove, (referring to Fig. 5), and the mating part of guide groove and guide plate 29 is dynamic matches
It closes, to prevent outside or inside play of the movable rack to carriage 60；At the top of movable rack after entering on-position with liter
It drops load-supporting part (being load-supporting part and upper rail 16 in Fig. 1, Fig. 3) the directly contact of equipment carriage or passes through middle transition load-bearing
Component contact load-bearing；The operating mechanism manipulation activities rack gear of movable rack, which is moved horizontally or stopped on orbit hole, is maintained at certain
A bit on determining position, the operating mechanism of the movable rack is arranged in the support knot in the horizontal plane direction of lifting device carriage
On structure 28, the lifting device levels electromagnetic lever-rack leveling controls safety catch, and installation site includes carriage
Top or bottom or other reasonable positions；The operating mechanism of the movable rack, including, right transmission pivot pin 58,
The right kidney slot 59 that is arranged on main lever 52, pulling block 54, is fixed on pulling block 54 at the middle kidney slot 55 being arranged on main lever 52
On middle transmission pivot pin 53, main lever 52, main lever axis 51, pull rod 6, bracket 7, spring 8, adjusting nut group 9, jacking block 10, living
Moving axis 21, the hinge component of left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34, right single-arm lever 37, right activity
The hinge component of mandrel 36 and right double-arm lever 35, fixing axle 33；The operating mechanism course of work of movable rack is by movable rack
Operating mechanism control device control, the control device of the operating mechanism of the movable rack includes, electromagnetic draw bar 57, electricity
Magnetic puller main body 56, the electromagnetism puller main body include the electromagnetic system of electromagnetism puller, control system, the electricity
The control system of magnetic puller is powered and is controlled by lifting device electric-control system；The electricity of the lifting device electric control system
It further include a delay energy storage device, power loss after lifting device electric control system obtains electric in the control unit of magnetic puller
When, electromagnetism puller not power loss immediately, but after the completion of being delayed energy storage device delay, electromagnetism puller power loss；Work as lifting
(state after being discharged including energy storage device energy after original state or power loss), lifting device when equipment general supply is disconnected without electricity
It remains static；The actual motion direction of the operating mechanism of the movable rack is direction along the horizontal plane, clear to describe,
It defines herein, before 18 direction of drive rack is, after 56 direction of electromagnetism puller main body is, before being to the movement of 18 direction of drive rack
It moves, mobile to move back to 56 direction of electromagnetism puller main body, (if Fig. 1, Fig. 2 are placed vertically, Forward is exactly relative to drawing
Uplink, moving back is exactly downlink relative to drawing)；The operating mechanism course of work of movable rack is, as electromagnetism puller master
It when 56 power loss of body, disappears to the electromagnet pull of electromagnetic draw bar 57, electromagnetic draw bar 57 and the right transmission pivot pin 58 being fixed thereon are logical
Cross the pulling force that right kidney slot 59, main lever 52, middle kidney slot 55, middle transmission pivot pin 53, pulling block 54, pull rod 6 are transferred to jacking block 10
Also it disappears simultaneously, jacking block 10 is moved forward by the elastic force of spring 8 and pull rod 6, pulling block 54 is driven to move forward together, is fixed on jacking block 10
Movable axis 21 follow the Forward of jacking block 10, the open end of left single-arm lever 31 being driven around on movable axis 21 and right single armed thick stick
The open end of bar 37 moves forward, and drives the hinge component of left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34, He Youdan
The hinge component of arm bar 37, right movable mandrel 36 and right double-arm lever 35, rotates around fixing axle 33, left double-arm lever 34, the right side
The rear end of double-arm lever 35 is opened toward the left and right sides, and left double-arm lever front end drives left movable rack 13, right double-arm lever front end
Drive right movable rack 17 mobile toward 18 center position of lifting device drive rack, until complete with lifting device drive rack 18
The application position of engagement brakes lifting device；At the same time, work of the electromagnetic draw bar 57 in electromagnetism puller internal reset mechanism
It is resetted forward under, reaches the position for making right transmission pivot pin 58 and right 59 front-back of kidney slot have gap；When electromagnetism puller
When main body 56 obtains electric, the electromagnet pull of electromagnetic draw bar 57 is generated, electromagnetic draw bar 57 and the right transmission pivot pin 58 being fixed thereon
Drive main lever 52 around 51 back rotation of main lever axis by right kidney slot 59, then by being driven pivot pin in the pulling of middle kidney slot
53, pulling block 54, pull rod 6, jacking block 10 move back, while compressed spring 8, after the movable axis 21 being fixed on jacking block 10 follows jacking block 10
It moves, pull the open end of left single-arm lever 31 being centered around on movable axis 21 and the open end of right single-arm lever 37 to move back simultaneously,
Pull the rear end of left double-arm lever 34, right double-arm lever 35 from the left and right sides toward centre movement, left double-arm lever front end band simultaneously
Move left movable rack 13, right double-arm lever front end drives right movable rack 17 toward the side for leaving 18 center of lifting device drive rack
To movement, until the free position in a bit of gap is kept completely separate and had with lifting device drive rack 18；Described is a bit of
Gap refers to the gap 2~5mm；Adjusting nut group 9 is used for the pressure of adjustment spring 8, and the lower end surface of 7 fixed spring 9 of bracket is most
Lower position；If there is abnormal conditions, such as the unexpected power down of lifting device or because lifting device overspeed protective device movement
It cuts off the power or because lifting device reaches the limit of guarded by location device action and cuts off the power etc., lifting device is total at this time
For power supply immediately without electricity, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays a role braking immediately,
After the completion of energy storage device delay, 56 power loss of electromagnetism puller main body disappears, before jacking block 10 to the electromagnet pull of electromagnetic draw bar 57
Shifting, left movable rack 13, right movable rack 17 and 18 positive engagement of drive rack, ensure that the safety of lifting device；Urgent system
In dynamic situation, left movable rack 13, right movable rack 17 may not have with drive rack 18 at the beginning it is at a fully engaged, it is worst
Situation when being braking as shown in FIG. 6 may there is a situation where the highest points of rack gear and highest point contact, acted at this time in elastic force
Under temporarily become friction catch, if the braking moment of lifting device whole brake apparatus adds up and is enough to realize braking at this time,
Braking task is completed；It is all not enough to prevent lifting device if the braking moment of lifting device whole brake apparatus adds up at this time
It glides, (because there is braking moment effect, just start glide can be slower), when slipping down to be staggered highest point and highest point
Position when, left movable rack 13, right movable rack 17 will elastic force promotion under squeeze into drive rack 18 tooth socket in (referring to
Fig. 7), then as continuing to glide, continue to squeeze into, until left movable rack 13, right movable rack 17 and drive rack 18 are reliable
Braking is implemented in engagement；The electromagnetism puller is the long-stroke push-and-pull electromagnetism of pulling mode for a kind of selected working method
Iron is a kind of novel Electromagnetic Control actuator part, is powered on control conversion, high-power start using power supply, small-power maintains
Working method, old-fashioned electromagnet volume than generating onesize active force is smaller, self weight is lighter, more power saving；Pass through lever
Transformation, can be used the electromagnetic driver half of the thrust pushed directly on, with save the cost, energy saving.
The hand-operating unlocking mechanism, including, clasp nut control crank 23, clasp nut combination 24, drive screw 25,
Worm screw control crank 26, worm type of reduction gearing 27, wherein clasp nut combination 24 with jacking block 10 be fixedly connected, drive screw
25 with the worm gear of worm type of reduction gearing 27 be fixedly connected, usually, clasp nut control crank 23 be placed in opens a sluice gate position, folding
Nut combination 24 in state of opening a sluice gate, its box thread and the male thread of drive screw 25 without engage, 25 pairs of folding spiral shells of drive screw
The movement of mother's combination 24 has no effect, and pacifies so that hand-operating unlocking mechanism controls lifting device levels electromagnetic lever-rack leveling
The movement of full application of brake device has no effect, when lifting device because power failure or other reason emergency brakings rest in not suddenly
When can be with the position of any one stop leveling, at this time clasp nut control crank 23 can be placed in closing position, make to open and close spiral shell
Mother's combination 24 is normally engaged in "on" position, its box thread with the male thread of drive screw 25, manual operation worm screw manipulates hand
Handle 26 rotates worm type of reduction gearing 27 and the rotation of drive screw 25, drive screw 25 is driven to be driven clasp nut combination 24
Move backward, clasp nut combination 24 drive jacking blocks 10 move backward, jacking block 10 moves back, while compressed spring 8, is fixed on jacking block
Movable axis 21 on 10 follow jacking block 10 to move back and meanwhile pull the left single-arm lever 31 being centered around on movable axis 21 open end and
The open end of right single-arm lever 37 moves back, while pulling left double-arm lever 34, the rear end of right double-arm lever 35 past from the left and right sides
Centre is mobile, and left double-arm lever front end drives left movable rack 13, right double-arm lever front end to drive right movable rack 17 is past to leave
The direction at 18 center of lifting device drive rack is mobile, until being kept completely separate with lifting device drive rack 18 and having a bit of
The free position of gap；Then Manual jigger mechanism is used, the nearest leveling of lifting device is made；The hand-operating unlocking mechanism must be set
It sets in the position that securely and reliably cannot arbitrarily open, formulated rules and regulations and strictly implements, it is ensured that only have qualification,
Authorized personnel could open and use.
A delay energy storage for including in the control unit of the electromagnetism puller of the lifting device electric control system
Device, including, the only contactor that control by general supply or relay adjunction tentaculum combines and energy storage device is described
The normally-closed contact of contactor or relay adjunction the tentaculum combination only controlled by general supply is connected across electromagnetism puller and energy storage
Between device, when lifting device obtains electric, normally-closed contact is disconnected, and the connection between electromagnetism puller and energy storage device also disconnects, and is stored up
It can device energy storage；When lifting device power loss, other electricity-loss braking devices include that the included power loss band brake apparatus of motor is sent out immediately
Wave effect braking, but electromagnetism puller not power loss immediately, the contactor or relay only controlled by general supply
The normally-closed contact power loss closure of adjunction tentaculum combination, connect electromagnetism puller with energy storage device, energy storage device pulls electromagnetism
When delay time (discharge time) the constant design tuning of device is that other all electricity-loss braking devices complete the braking that braking needs
Between with electromagnetism puller and the operating mechanism of the movable rack including lever movement total delay time difference；For example, certain
It is 3.5S, electromagnetic driver and movable teeth that other all electricity-loss braking devices of lifting device, which complete the braking time that braking needs,
The movement total delay time of the operating mechanism of item is 0.3S, then energy storage device is whole to the delay time constant design of electromagnetic driver
It is set to (3.5S-0.3S=) 3.2S；It is delayed after the completion of energy storage device delay, electromagnetic driver power loss.
The control system of the electromagnetism puller is powered and is controlled by lifting device electric control system, electrical control
It include that, when lifting device prepares to start, the electric control system of lifting device controls lifting device in the rate-determining steps of system
Drive system driving lifting device moves up a distance element, makes lower plane and right movable rack 17 and the left side of load-supporting part 16
The upper plane of movable rack 13 has a microgap, and the numerical value of the microgap is left movable rack 13, right movable rack 17
With 0.2~0.6 times of 18 sideshake of lifting device drive rack；Then control electromagnetism puller main body 1 obtains electric, drives left movable teeth
Item 13, right movable rack 17 are mobile toward the direction for leaving 18 center of lifting device drive rack, until with lifting device sliding tooth
Item 18 is kept completely separate and has the free position in a bit of gap, is ready for lifting device starting.
Lifting device using lifting device levels electromagnetic lever-rack leveling control safety catch of the invention is each
The distance between possible braking anchor point is the integral multiple of its drive rack tooth pitch (p=π m), therefore configured with of the invention
The installation method that levels electromagnetic lever-rack leveling controls the lifting device of safety catch includes carrying out and installing and is related
When civil construction early period, it is necessary to carry out precise measurement by the difference in height to stop and stop, be carried out accordingly to each stop sill
It constructs and the difference in height for accurately controlling plane on sill between stop and stop is the integral multiple of drive rack tooth pitch (p=π m),
According to the regulation of GB/T10058, allowable error is ± 10mm (construction internally controlling requirement should be less than this error amount)；In lifting device
It is correct to adjust working in coordination for lifting device and drive rack when installation, it is put down so that lifting device carriage is just stopped from first layer
Layer is accurate and in median, then later stop leveling can meet the requirements, or even occurs in other individual leveling elements
When failure, stop leveling accuracy also can guarantee；And leveling keep precision can be much better than as defined in GB/T10058 ±
The requirement of 20mm.
The present invention carries out leveling control using rack gear engagement system, and leveling holding precision, which can achieve, is much better than GB/
The requirement of ± 20mm as defined in T10058；It is engaged using rack gear and carries out safeguard protection braking, avoid existing friction catch side
Formula be likely to occur because friction material abrasion or oil pollution or gear failure etc. caused by security risk, improve
The reliability of safety arrestment；Save the cost, energy saving is conducive to using lever mated electromagnetism puller；Horizontal direction configuration can
With top set or bottom setting installation, the useful space in carriage has been saved；Therefore, can play save the cost, it is energy saving,
It promotes the useful space, improve langding accuracy and the beneficial effect of safeguard protection braking quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that a kind of lifting device levels electromagnetic lever-rack leveling controls safety catch.
The lifting device levels electromagnetic lever-rack leveling that Fig. 2 is Fig. 1 controls safety catch and is in free state
Schematic diagram.
Fig. 3 is the A-A partial sectional view of Fig. 1.
Fig. 4 is that the movable rack that view direction same as shown in Figure 3 is shown is engaged with the releasing of lifting device drive rack
Schematic diagram in free state.
Fig. 5 is the B-B partial sectional view of Fig. 1.
Fig. 6 is the C-C partial sectional view direction of Fig. 1, and highest point and the highest point contact of rack gear may occur when braking
Status diagram.
Fig. 7 is the same view direction of Fig. 6, when left movable rack, right movable rack are squeezed into lifting under elastic force promotion and set
Schematic diagram in the tooth socket of standby drive rack.
Fig. 8 is the schematic diagram of embodiment 1.
Fig. 9 is the case where safety catch of embodiment 1 brakes lifting device schematic diagram.
Specific embodiment
Embodiment 1, Fig. 8 be embodiment 1 schematic diagram, drawing show be lifting device side appearance, the level
Electromagnetism pulls safety catch to be mounted on the top of pinion and-rack lifting device, is temporarily in free position, lifting device
Situation in preparing operation or being currently running, Fig. 9 are that the levels electromagnetic of embodiment 1 pulls safety catch to lifting device
The case where being braked schematic diagram, (left and right described in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 7 of front is in lifting device
Face sees toward lifting device side, and Fig. 8, Fig. 9 are to see from the outside toward lifting device side, so left and right directions just reverse phase), it uses
Levels electromagnetic lever-rack leveling control its internal structure each section of safety catch composition and effect illustrate see Fig. 1~
Shown in 7, and [0004] section, [0005] section, [0006] section, [0007] Duan Suoshu, due to being related to the cooperation of multiple transmission systems
Coordinate, so should be specifically noted that manufacturing quality and installation quality in manufacture and installation, including must doing for [0008] Duan Suoshu
The good difference in height including accurately controlling plane on sill between stop and stop is the integral multiple of drive rack tooth pitch (p=π m)
Related work, guarantee necessary precision, could trial operation after detection is qualified；The electric control system of lifting device is using embedding
Embedded system is as master control system, the course of work, when system is without electricity, when electromagnetism puller 56 power loss of main body, to electricity
The electromagnet pull of magnetic pull rod 57 disappears, and electromagnetic draw bar 57 passes through right kidney slot 59, master with the right transmission pivot pin 58 being fixed thereon
Lever 52, middle kidney slot 55, middle transmission pivot pin 53, pulling block 54, pull rod 6 are transferred to the pulling force of jacking block 10 also while disappearing, jacking block
10 are moved forward by the elastic force of spring 8 and pull rod 6, pulling block 54 are driven to move forward together, and the movable axis 21 being fixed on jacking block 10 follows
Before the Forward of jacking block 10, the open end of left single-arm lever 31 and the open end of right single-arm lever 37 being driven around on movable axis 21
It moves, drives the hinge component and right single-arm lever 37, right work of left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34
The hinge component of moving mandrel 36 and right double-arm lever 35 is rotated around fixing axle 33, after left double-arm lever 34, right double-arm lever 35
It holds toward the left and right sides and opens, left double-arm lever front end drives left movable rack 13, right double-arm lever front end to drive right movable rack
17 is mobile toward 18 center position of lifting device drive rack, until the retarder location at a fully engaged with lifting device drive rack 18
It sets, lifting device is braked；At the same time, electromagnetic draw bar 57 is multiple forward under the action of electromagnetism puller internal reset mechanism
Position reaches the position for making right transmission pivot pin 58 and right 59 front-back of kidney slot have gap；When electromagnetism puller main body 56 must be electric
When, the electromagnet pull of electromagnetic draw bar 57 is generated, electromagnetic draw bar 57 and the right transmission pivot pin 58 being fixed thereon pass through right kidney-shaped
Hole 59 drives main lever 52 around 51 back rotation of main lever axis, then by being driven pivot pin 53 in the pulling of middle kidney slot, pulling block 54, drawing
Bar 6, jacking block 10 move back, while compressed spring 8, and the movable axis 21 being fixed on jacking block 10 follows jacking block 10 to move back while pulling
The open end for the left single-arm lever 31 being centered around on movable axis 21 and the open end of right single-arm lever 37 move back, while pulling left double
Arm bar 34, the rear end of right double-arm lever 35 are mobile toward centre from the left and right sides, and left double-arm lever front end drives left movable rack
13, right double-arm lever front end drives right movable rack 17 mobile toward the direction for leaving 18 center of lifting device drive rack, until
The free position in a bit of gap is kept completely separate and had with lifting device drive rack 18；The a bit of gap, refer to 2~
The gap 5mm；Adjusting nut group 9 is used for the pressure of adjustment spring 8, the extreme lower position of the lower end surface of 7 fixed spring 9 of bracket；Work as liter
When dropping equipment preparation starting, the drive system driving lifting device of the electric control system control lifting device of lifting device is upward
A mobile distance element, makes the upper plane of load-supporting part and the lower plane of upper rail 16 and right movable rack 17 and left movable rack 13
There is a microgap, the numerical value of the microgap is left movable rack 13, right movable rack 17 and lifting device drive rack
0.2~0.6 times of 18 sideshakes；Then the electric control system control electromagnetism puller main body 56 of lifting device obtains electric, to electromagnetism
The electromagnet pull of pull rod 57 generates, and electromagnetic draw bar 57 is driven by right kidney slot 59 with the right transmission pivot pin 58 being fixed thereon and led
Lever 52 is around 51 back rotation of main lever axis, then passes through transmission pivot pin 53, pulling block 54, pull rod 6, jacking block 10 in the pulling of middle kidney slot
It moves back, while compressed spring 8, the movable axis 21 being fixed on jacking block 10 follows jacking block 10 to move back while pulling the activity of being centered around
The open end of left single-arm lever 31 on axis 21 and the open end of right single-arm lever 37 move back, at the same pull left double-arm lever 34,
The rear end of right double-arm lever 35 is mobile toward centre from the left and right sides, and left double-arm lever front end drives left movable rack 13, right both arms
Its end of lever drives right movable rack 17 mobile toward the direction for leaving 18 center of lifting device drive rack, until and lifting device
Drive rack 18 is kept completely separate and has the free position in a bit of gap；When needing to stop after lifting device starting, lifting device
Electric control system first disconnect lifting device motor power, motor deceleration, when close to stop position, such as close to flat
When layer position, electric control system controls 56 power loss of electromagnetism puller main body on schedule, disappears to the electromagnet pull of electromagnetic draw bar 57
Lose, electromagnetic draw bar 57 and the right transmission pivot pin 58 that is fixed thereon by right kidney slot 59, main lever 52, middle kidney slot 55, in
Transmission pivot pin 53, pulling block 54, pull rod 6 are transferred to the pulling force of jacking block 10 also while disappearing, and jacking block 10 is moved forward simultaneously by the elastic force of spring 8
And pull rod 6, pulling block 54 is driven to move forward together, the movable axis 21 being fixed on jacking block 10 follows the Forward of jacking block 10, is driven around
The open end of left single-arm lever 31 on movable axis 21 and the Forward of the open end of right single-arm lever 37, drive left single-arm lever 31,
The hinge component and right single-arm lever 37, right movable mandrel 36 and right double-arm lever of left activity mandrel 32 and left double-arm lever 34
35 hinge component is rotated around fixing axle 33, left double-arm lever 34, right double-arm lever 35 rear end opened toward the left and right sides, it is left
Double-arm lever front end drives left movable rack 13, right double-arm lever front end to drive right movable rack 17 toward lifting device drive rack
18 center positions are mobile, until the application position at a fully engaged with lifting device drive rack 18, brakes lifting device；With this
Meanwhile electromagnetic draw bar 57 resets forward under the action of electromagnetism puller internal reset mechanism, arrival make right transmission pivot pin 58 and
Right 59 front-back of kidney slot has the position in gap；If there is abnormal conditions, for example, the unexpected power down of lifting device or because
Lifting device overspeed protective device action power dump or because lifting device reach the limit of guarded by location device action cutting
Power supply etc., for lifting device general supply immediately without electricity, other electricity-loss braking devices include the included power loss band-type brake of motor at this time
Device plays a role braking immediately；Due to the effect for the energy storage device that is delayed, electromagnetism puller main body 56 is not power loss immediately, is being prolonged
When energy storage device delay after the completion of, 56 power loss of electromagnetism puller main body disappears to the electromagnet pull of electromagnetic draw bar 57, before jacking block 10
Shifting, left movable rack 13, right movable rack 17 and 18 positive engagement of drive rack, ensure that the safety of lifting device；Urgent system
In dynamic situation, left movable rack 13, right movable rack 17 may not have with drive rack 18 at the beginning it is at a fully engaged, it is worst
Situation when being braking as shown in FIG. 6 may there is a situation where the highest points of rack gear and highest point contact, acted at this time in elastic force
Under temporarily become friction catch, if the braking moment of lifting device whole brake apparatus adds up and is enough to realize braking at this time,
Braking task is completed；It is all not enough to prevent lifting device if the braking moment of lifting device whole brake apparatus adds up at this time
It glides, (because there is braking moment effect, just start glide can be slower), when slipping down to be staggered highest point and highest point
Position when, left movable rack 13, right movable rack 17 will elastic force promotion under squeeze into drive rack 18 tooth socket in (referring to
Fig. 7), then as continuing to glide, continue to squeeze into, until left movable rack 13, right movable rack 17 and drive rack 18 are reliable
Braking is implemented in engagement；When lifting device because have a power failure suddenly or other reason emergency brakings rest in cannot be with any one
When the position of stop leveling, at this time clasp nut control crank 23 can be placed in closing position, be in clasp nut combination 24
"on" position, its box thread normally engage with the male thread of drive screw 25, manual operation worm screw control crank 26, make worm gear snail
Bar retarder 27 rotates and the rotation of drive screw 25, drive screw 25 is driven to be driven clasp nut combination 24 and moves backward, opens and closes
24 drive jacking block 10 of nut combination moves backward, and the movable axis 21 being fixed on jacking block 10 follows jacking block 10 to move back while pulling
The open end for the left single-arm lever 31 being centered around on movable axis 21 and the open end of right single-arm lever 37 move back, while pulling left double
Arm bar 34, the rear end of right double-arm lever 35 are mobile toward centre from the left and right sides, and left double-arm lever front end drives left movable rack
13, right double-arm lever front end drives right movable rack 17 mobile toward the direction for leaving 18 center of lifting device drive rack, until
The free position in a bit of gap is kept completely separate and had with lifting device drive rack 18；Then Manual jigger mechanism is used, is made
The nearest leveling of lifting device；The hand-operating unlocking mechanism is necessarily placed at the position that securely and reliably cannot arbitrarily open, and formulates
Rules and regulations and strictly implement, it is ensured that only have qualification, authorized personnel could open and use.
Embodiment 2, Fig. 8, Fig. 9 are also the schematic diagram of embodiment 2, it is shown that one kind is mounted with lifting of the present invention
Equipment level electromagnetic lever rack gear leveling controls the elevator of safety catch, the lifting device levels electromagnetic lever-rack of use
Leveling control its internal structure each section of safety catch forms and what is acted on illustrates as shown in Fig. 1~7, and [0004]
Section, [0005] section, [0006] section, [0007] Duan Suoshu, working principle and [0019] section are described identical.
For the benefit of reader understands the present invention, and this specification illustrates some specific structures and data, these be all for
Explanation and it is non-limiting, various changes, replacement and the change done within the scope of the basic thought of the claims in the present invention are produced
Raw all or part of equivalent, all within the scope of the invention as claimed.
Claims (6)
1. a kind of lifting device levels electromagnetic lever-rack leveling controls safety catch, characterized in that device presses level side
To configuration, for installation site in lifting device car top or bottom, composition includes load-supporting part, rail assembly, movable teeth
Item, the position-limit mechanism of movable rack, the operating mechanism of movable rack, the control device of the operating mechanism of movable rack, manual solution
Latch mechanism；The load-supporting part includes direct load-supporting part or middle transition load-supporting part；The rail assembly includes
The horizontal rail that track window aperture, guide plate, load-supporting part and upper rail and lower rail are formed, the movable rack includes right activity
Rack gear and left movable rack, the right movable rack and left movable rack pass through track window aperture, movable rack with lifting
The tooth form for the part that the drive rack of equipment is associated is in can be with the engagement of the drive rack of lifting device or isolated position
Set, on the position by the way that certain determinations are moved horizontally or be maintained on rail assembly realize with drive rack engage or
Separation, the position of the determination drive including the application position engaged with lifting device drive rack or with lifting device
Rack gear is kept completely separate and has the free position in one section of gap, and described has one section of gap, refers to drive rack and corresponding thereto
Movable rack tooth top interplanar have the >=gap 2mm；Movable rack and the fit dimension of horizontal rail are dynamic cooperation, contact surface
Entered at the top of right movable rack and left movable rack for smooth low coefficient of friction surfaces with being conducive to the movement of movable rack
Load-bearing is directly contacted with load-supporting part and upper rail after on-position；The position-limit mechanism of the movable rack includes movable rack
At least one direction of the inner face either above or below for the part being associated with guide rail be provided with guide groove, guide groove and guiding
The mating part of plate is dynamic cooperation, to prevent outside or inside play of the movable rack to carriage；At the top of movable rack into
It is directly contacted after entering on-position with the load-supporting part of lifting device carriage or load-bearing is contacted by middle transition load-supporting part；
The operating mechanism manipulation activities rack gear of movable rack moves horizontally on orbit hole or stops the position for being maintained at certain determinations
On, the operating mechanism of the movable rack is arranged in the support structure in horizontal plane direction of lifting device carriage, described
Lifting device levels electromagnetic lever-rack leveling controls safety catch, and installation site includes the top or bottom of carriage
Portion；The operating mechanism of the movable rack, including, right transmission pivot pin, is arranged in master the right kidney slot being arranged on main lever
Middle kidney slot, pulling block on lever, middle transmission pivot pin, main lever, main lever axis, pull rod, the bracket, bullet being fixed on pulling block
Spring, adjusting nut group, jacking block, movable axis, the hinge component of left single-arm lever, left movable mandrel and left double-arm lever, right single armed
The hinge component of lever, right movable mandrel and right double-arm lever, fixing axle；The operating mechanism course of work of movable rack is by activity
The control device of the operating mechanism of rack gear controls, and the control device of the operating mechanism of the movable rack includes, electromagnetic draw bar,
Electromagnetism puller main body, the electromagnetism puller main body include the electromagnetic system of electromagnetism puller, control system, the electricity
The control system of magnetic puller is powered and is controlled by lifting device electric-control system；The electromagnetism of the lifting device electric-control system is drawn
It further include a delay energy storage device in the control unit of dynamic device, when lifting device electric-control system obtains electric power loss later, electromagnetism
Puller not power loss immediately, but after the completion of being delayed energy storage device delay, electromagnetism puller power loss；When lifting device is always electric
When source is disconnected without electricity, lifting device remains static；The actual motion direction of the operating mechanism of the movable rack is edge
Horizontal plane direction, it is clear to describe, it defines herein, before drive rack direction is, after electromagnetism puller main direction is, to driving
Rack gear direction is mobile to move forward, and mobile to electromagnetism puller main direction is to move back；The operating mechanism course of work of movable rack
For, when electromagnetism puller main body power loss, disappear to the electromagnet pull of electromagnetic draw bar, electromagnetic draw bar and the right biography being fixed thereon
Moving axis pin is transferred to the pulling force of jacking block also simultaneously by right kidney slot, main lever, middle kidney slot, middle transmission pivot pin, pulling block, pull rod
It disappears, jacking block is moved forward by the elastic force of spring and pull rod, pulling block is driven to move forward together, and the movable axis being fixed on jacking block follows top
The open end Forward of block Forward, the open end for the left single-arm lever being driven around on movable axis and right single-arm lever, drives left
Single-arm lever, the hinge component of left movable mandrel and left double-arm lever and right single-arm lever, right movable mandrel and right double-arm lever
Hinge component, around fixing axle rotate, left double-arm lever, right double-arm lever rear end toward the left and right sides open, left double-arm lever
Front end drives left movable rack, right double-arm lever front end that right movable rack is driven to move toward lifting device drive rack center position
It is dynamic, until the application position at a fully engaged with lifting device drive rack, brakes lifting device；At the same time, electromagnetic draw bar
It is resetted forward under the action of electromagnetism puller internal reset mechanism, arrival has right transmission pivot pin with right kidney slot front-back
The position in gap；When electromagnetism puller main body obtains electric, the electromagnet pull of electromagnetic draw bar is generated, electromagnetic draw bar and is fixed on it
On right transmission pivot pin by right kidney slot drive main lever around main lever axis back rotation, then by middle kidney slot pull in pass
Moving axis pin, pulling block, pull rod, jacking block move back, while compressed spring, and the movable axis being fixed on jacking block follows jacking block to move back, simultaneously
It pulls the open end of left single-arm lever being centered around on movable axis and the open end of right single-arm lever to move back, while pulling left both arms
Lever, the rear end of right double-arm lever are mobile toward centre from the left and right sides, and left double-arm lever front end drives left movable rack, right both arms
It is mobile toward the direction for leaving the lifting device drive rack heart that lever front end drives right movable rack, until with lifting device sliding tooth
Item is kept completely separate and has the free position in a bit of gap；The a bit of gap, refers to the gap 2~5mm；Adjusting nut group
For the pressure of adjustment spring, the rearmost position of the rear end face of bracket fixed spring；It is set if there is abnormal conditions, including lifting
It is reached the limit of for unexpected power down or because of lifting device overspeed protective device action power dump or because of lifting device
Guarded by location device action is cut off the power, and for lifting device general supply immediately without electricity, other electricity-loss braking devices include electronic at this time
The included power loss band brake apparatus of machine plays a role braking immediately, after the completion of energy storage device is delayed, electromagnetism puller main body power loss,
To the electromagnet pull disappearance of electromagnetic draw bar, jacking block Forward, left movable rack, right movable rack and drive rack positive engagement, protect
The safety of lifting device is demonstrate,proved；The electromagnetism puller is the long-stroke push-and-pull of pulling mode for a kind of selected working method
Electromagnet, is a kind of novel Electromagnetic Control actuator part, is powered on control conversion, high-power start, small-power using power supply
The working method of maintenance；By lever change, the electromagnetic driver half of the thrust pushed directly on can be used.
2. lifting device levels electromagnetic lever-rack leveling according to claim 1 controls safety catch, feature
It is the hand-operating unlocking mechanism, including, clasp nut control crank, clasp nut combination, drive screw, worm screw manipulate hand
Handle, worm type of reduction gearing, wherein clasp nut combination with jacking block be fixedly connected, drive screw and worm type of reduction gearing
Worm gear is to be fixedly connected, and usual, clasp nut control crank is placed in and opens a sluice gate position, clasp nut combination is in state of opening a sluice gate, it
Box thread has no effect to the movement that clasp nut combines without engagement, drive screw with the male thread of drive screw, thus hand
Dynamic unlocking mechanism has no effect to the movement of lifting device levels electromagnetic lever-rack leveling control safety catch, works as liter
Drop equipment because have a power failure suddenly or other reason emergency brakings rest in when cannot be with the position of any one stop leveling, this
When clasp nut control crank can be placed in closing position, make clasp nut combination in "on" position, its box thread and transmission
The male thread of screw rod normally engages, manual operation worm screw control crank, rotates worm type of reduction gearing and drive drive screw
Rotation, drive screw transmission clasp nut combination moves backward, clasp nut combination drives jacking block to move backward, and jacking block moves back,
Compressed spring, the movable axis being fixed on jacking block follow jacking block to move back while pulling the left single armed being centered around on movable axis simultaneously
The open end of lever and the open end of right single-arm lever move back, while pulling the rear end of left double-arm lever, right double-arm lever from a left side
Right two sides are mobile toward centre, and left double-arm lever front end drives left movable rack, its end of right double-arm lever to drive right movable rack past
The direction for leaving lifting device drive rack center is mobile, until being kept completely separate with lifting device drive rack and having a bit of
The free position of gap；Then Manual jigger mechanism is used, the nearest leveling of lifting device is made；The hand-operating unlocking mechanism must be set
It sets in the position that securely and reliably cannot arbitrarily open, formulated rules and regulations and strictly implements, it is ensured that only have qualification,
Authorized personnel could open and use.
3. lifting device levels electromagnetic lever-rack leveling according to claim 1 controls safety catch, feature
It is a delay energy storage device for including in the control unit of the electromagnetism puller of the lifting device electric-control system, including,
One the only contactor that control by general supply or the combination of relay adjunction tentaculum and energy storage device, described by general supply
The normally-closed contact of contactor or relay adjunction the tentaculum combination of control is connected across between electromagnetism puller and energy storage device, is risen
When drop equipment obtains electric, normally-closed contact is disconnected, and the connection between electromagnetism puller and energy storage device also disconnects, energy storage device energy storage；
When lifting device power loss, the instant brake apparatus of power loss includes that the included power loss band brake apparatus of motor plays a role braking immediately,
But power loss, the contactor only controlled by general supply or relay adjunction tentaculum do not combine electromagnetism puller immediately
Normally-closed contact power loss closure, connect electromagnetism puller with energy storage device, delay time of the energy storage device to electromagnetism puller
Constant design tuning is the braking time and electromagnetism puller and movable teeth that other all electricity-loss braking devices complete that braking needs
The difference of the movement total delay time of the operating mechanism of item, the delay time refer to the discharge time of energy storage device；Delay
After the completion of energy storage device delay, electromagnetism puller power loss.
4. lifting device levels electromagnetic lever-rack leveling according to claim 1 controls safety catch, feature
It is that the control system of the electromagnetism puller is powered and controlled by lifting device electric control system, electric control system
Rate-determining steps in include, when lifting device prepare start when, lifting device electric control system control lifting device driving
System drive lifting device moves up a distance element, makes the lower plane and right movable rack and left movable rack of load-supporting part
Upper plane have a microgap, the numerical value of the microgap is left movable rack, right movable rack and lifting device driving
0.2~0.6 times of rack gear sideshake；Then control electromagnetism puller main body obtain it is electric, drive left movable rack, right movable rack toward from
The direction for opening lifting device drive rack center is mobile, until being kept completely separate with lifting device drive rack and having a bit of gap
Free position, for lifting device starting be ready.
5. lifting device levels electromagnetic lever-rack leveling according to claim 1 controls safety catch, feature
It is the installation side of the lifting device configured with the lifting device levels electromagnetic lever-rack leveling control safety catch
Method includes, when carrying out and install related civil construction early period, it is necessary to accurately be surveyed by the difference in height to stop and stop
Amount accordingly constructs to each stop sill and accurately controls the difference in height of plane on sill between stop and stop as driving
Rack tooth away from integral multiple, it is correct to adjust working in coordination for lifting device and drive rack in lifting device installation so that rising
Drop equipment carriage just stops leveling accuracy from first layer and in median.
6. a kind of elevator, characterized in that install and use lifting described in any claim in claim 1- claim 5 and set
Standby levels electromagnetic lever-rack leveling controls safety catch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611221157.2A CN106744194B (en) | 2016-12-27 | 2016-12-27 | Lifting device levels electromagnetic lever-rack leveling controls safety catch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611221157.2A CN106744194B (en) | 2016-12-27 | 2016-12-27 | Lifting device levels electromagnetic lever-rack leveling controls safety catch |
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| CN106744194B true CN106744194B (en) | 2019-08-06 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7909142B2 (en) * | 2006-05-19 | 2011-03-22 | Hydro-Mobile Inc. | Braking device for elevating platform assembly |
| CN101003343A (en) * | 2006-12-30 | 2007-07-25 | 济南重工股份有限公司 | Dooly compartment self going type elevator |
| US8210319B2 (en) * | 2007-08-31 | 2012-07-03 | John W. Boyd | Hydraulic elevating platform assembly |
| CN101172554B (en) * | 2007-09-27 | 2011-08-03 | 日立电梯（中国）有限公司 | Bidirectional safety tongs device for elevator |
| CN102259783B (en) * | 2011-03-17 | 2013-04-10 | 太仓市康辉科技发展有限公司 | Mechanical device stopping in case of overspeed |
| CN106744195A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | Rack-and-pinion jacking equipment levels electromagnetic lever flat bed controls safety catch |
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