CN106629303B - Rack-and-pinion lifting device levels electromagnetic lever safety catch - Google Patents
Rack-and-pinion lifting device levels electromagnetic lever safety catch Download PDFInfo
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- CN106629303B CN106629303B CN201611221125.2A CN201611221125A CN106629303B CN 106629303 B CN106629303 B CN 106629303B CN 201611221125 A CN201611221125 A CN 201611221125A CN 106629303 B CN106629303 B CN 106629303B
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- lifting device
- rack
- lever
- movable rack
- drive
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Classifications
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/30—Operating devices electrical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
A kind of rack-and-pinion lifting device levels electromagnetic lever 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；It directly contacts perhaps to move horizontally or stop on orbit hole by the operating mechanism manipulation activities rack gear that middle transition load-supporting part contacts load-bearing movable rack with the main load-carrying members of lifting device carriage after entering on-position at the top of movable rack and 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；Alleviator self weight, save the cost are conducive to using lever plus electromagnetic driver；It plays and saves the useful space, beneficial effect that is energy saving, improving langding accuracy and safeguard protection braking quality.
Description
Technical field
The present invention relates to lifting device safety catch fields, horizontal more particularly to a kind of rack-and-pinion lifting device
Electromagnetic lever safety catch.
Background technique
Improve effective transport power, it is energy saving be one of rack-and-pinion lifting device and need the task of ongoing effort, it is existing
Rack-and-pinion lifting device safety catch, be by various methods, make drive gear stop operating to realize；But
If driving gear that problem, such as gear teeth damage occurs, even if gear does not rotate, reliable braking cannot guarantee that；To ensure to pacify
Entirely, pinion and-rack lifting device must configure reliably to cope with and problem occurs including driving gear and asks similar to safety
The safety catch of topic.
Summary of the invention
The purpose of the present invention, be to provide a kind of relatively light self weight, save the cost, it is energy saving, cope with including sliding tooth
Take turns the safety catch of generation problem and similar safety problem.
Fig. 1 is a kind of structural schematic diagram of rack-and-pinion lifting device levels electromagnetic lever safety catch, diagram side
To for from the top of rack-and-pinion lifting device carriage 70, shed top car outside plate finding viewed from above, so for lifting
Device drives rack gear 18 can only see its top, and right movable rack 17 has carried out broken section processing, can see clearly inside it
With the fit structure of right lever 20, the combination of right movable rack and the combination of left movable rack be with rack gear among center chain-dotted line table
The vertical median plane perpendicular to rack gear projection plane shown is the mirror symmetric figure of symmetrical plane, and bracket 8 is half section；Fig. 1 is aobvious
What is shown is the state that movable rack is separated with lifting device drive rack, and the levels electromagnetic lever safety catch is in
Free position state；Fig. 2 is that the rack gear of rack-and-pinion lifting device levels electromagnetic lever safety catch shown in FIG. 1 engages
Schematic diagram in on-position, projecting direction are identical as the projecting direction of Fig. 1；Fig. 3 is the A-A partial sectional view of Fig. 1, direction
For from A-A section eyes front (in terms of rack gear direction) finding, drawing shows rail assembly, movable rack, movable rack and work
The connection relationship of the lever left 10 of the operating mechanism of carry-over bar, right lever 20, the state of display is movable rack and lifting device
Drive rack is in engagement on-position；Fig. 4 is the movable rack and lifting device that view direction same as shown in Figure 3 is shown
Drive rack separation is in the schematic diagram of free position state；Fig. 5 is the B-B partial sectional view of Fig. 1, and direction is from B-B section
Seen in turning right and see and (seeing toward centerline direction), drawing shows rail assembly, movable rack, movable rack from vertical section direction
The connection relationship of the lever left 10 of operating mechanism；A kind of rack-and-pinion lifting device levels electromagnetic lever safety catch (with
Lower abbreviation levels electromagnetic lever safety catch), characterized in that device is configured by horizontal direction, and installation site is set in lifting
Standby car top or bottom or other reasonable positions, composition include, 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, manual unlocking machine
Structure；The load-supporting part includes direct load-supporting part or middle transition load-supporting part；The rail assembly includes track
The horizontal rail that window aperture 12, guide plate 29, load-supporting part and upper rail 16 and lower rail 19 are formed, the movable rack include a left side
Movable rack 13 and right movable rack 17, the left movable rack 13 and right movable rack 17 pass through track window aperture 12, living
The tooth form for the part of carry-over bar being associated with the drive rack 18 of lifting device is in can be with the drive rack of lifting device
18 engagements perhaps realize on the position of isolated position by the way that certain determinations are moved horizontally or be maintained on rail assembly and
The engagement or separation of drive rack 18, the position of the determination, including the retarder location engaged with lifting device drive rack
The free position in a bit of gap is set or is kept completely separate and has with lifting device drive rack, described has a bit of
Gap refers to that drive rack and movable rack tooth top interplanar corresponding thereto have the gap 2~5mm；Movable rack and horizontal rail
Fit dimension be dynamic cooperation, contact surface is smooth low coefficient of friction surfaces, to be conducive to the movement of movable rack, left activity
Rack gear 13 and 17 top of right movable rack directly contact load-bearing with load-supporting part and upper rail 16 after entering on-position；Described
The position-limit mechanism of movable rack includes that the inner face either above or below for the part of movable rack being associated with guide rail is at least
One direction is provided with guide groove, (referring to Fig. 5), and the mating part of guide groove and guide plate 29 is dynamic cooperation, to prevent movable teeth
Outside or inside play of the item to carriage 70；Load-bearing at the top of movable rack after entering on-position with lifting device carriage
Component (being load-supporting part and upper rail 16 in Fig. 2, Fig. 4) directly contact contacts load-bearing by middle transition load-supporting part；It is living
The operating mechanism manipulation activities rack gear of carry-over bar is moved horizontally or is stopped on orbit hole on the position for being maintained at certain determinations,
The operating mechanism of the movable rack is arranged in the support structure 28 in the horizontal plane direction of lifting device carriage, the tooth
Take turns rack gear lifting device levels electromagnetic lever safety catch, installation site include carriage top or bottom or
Other reasonable positions；The operating mechanism of the movable rack includes that lever left 10, right lever 20, left fixed shaft 11, the right side are solid
Dead axle 21, pulling block 9, bracket 8, spring 7, adjusting nut group 6, pull rod 5, pushing block 54, impeller-hub 53, pushes thick stick at movable axis 22
Bar 52 is arranged in the kidney slot 55 pushed on lever 52, pushes lever shaft 51, roller shaft 59, idler wheel 60, protection block 58；It is described
The control device of operating mechanism of movable rack include electromagnetism push rod 57, electromagnetic driver main body 56, the electromagnetic propulsion
Device main body includes the electromagnetic system of electromagnetic driver, control system, and the control system of the electromagnetic driver is by lifting device
Electric control system power supply and control；It is also wrapped in the control unit of the electromagnetic driver of the lifting device electric control system
A delay energy storage device is included, when lifting device electric control system obtains electric power loss later, electromagnetic driver does not lose immediately
Electricity, but after the completion of being delayed energy storage device delay, electromagnetic driver power loss；(the packet when lifting device general supply is disconnected without electricity
Include the state after original state or power loss after the release of energy storage device energy), lifting device remains static；The activity
The actual motion direction of the operating mechanism of rack gear is that direction defines, 18 direction of drive rack herein along the horizontal plane to describe clearly
It is mobile to move forward to 18 direction of drive rack after 56 direction of electromagnetic driver main body is to be preceding, to 56 side of electromagnetic driver main body
To mobile to move back, (if Fig. 1, Fig. 2 are placed vertically, Forward is exactly the uplink relative to drawing, and moving back is exactly relative to figure
The downlink in face)；The operating mechanism course of work of movable rack is original state or electroless state, electromagnetic driver main body 56
Without electricity, push rod 57 is in that initial position, there are also gap, the pushing blocks of operating mechanism with the lowest order of idler wheel 60 with protection block 3
54 are moved back and are driven pull rod 5, pulling block 9 to move back together by the elastic force effect of spring 7, be fixed on movable axis 22 on pulling block 9 with
It is moved back with pulling block 9, lever left 10,20 postbrachium of right lever is driven to rotate around left fixed shaft 11, right fixed shaft 21 toward outside, lever left
10, the forearm of right lever 20 drives left movable rack 13, right movable rack 17 to move toward 18 center position of lifting device drive rack
Dynamic, until the application position at a fully engaged with drive rack 18, the stopping of pushing block 54 is moved back, and is consolidated while pushing block 54 moves back
The impeller-hub 53 being scheduled on pushing block 54 also moves back, driven by kidney slot 55 push lever 52 around push lever shaft 51 to back spin
Turn, pushes the roller shaft 59 of 52 other end of lever, idler wheel 60 to rotate together also with promotion lever 52, until pushing block 54 stops
It moving back, idler wheel 60 reaches last position, has an a bit of gap with protection block 58, keep not contact condition, a bit of gap,
Refer to the gap 2~5mm；When electromagnetic driver main body 56 it is electric when, push rod 57 push protection block 58 Forward, protection block 58 push rolling
Wheel 60, roller shaft 59 move forward, and idler wheel 60, roller shaft 59, which drive, pushes lever 52 around pushing lever shaft 51 to rotate forward, push thick stick
Bar 52 drives impeller-hub 53, impeller-hub 53 that pushing block 54 is driven to move forward by kidney slot 55, and pushing block 54 drives pull rod 5, pulling block 9
Compressed spring 7, the movable axis 22 being fixed on pulling block 9 follow the Forward of pulling block 9, drive lever left 10, You Gang simultaneously for Forward together
20 postbrachium of bar is rotated around left fixed shaft 11, right fixed shaft 21 toward inside, the left movable teeth of forearm drive of lever left 10, right lever 20
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, and safety catch is in free position state, is lifting device
Starting is ready, and a bit of gap refers to the gap 2~5mm；When needing to stop after lifting device starting, lifting is set
Standby electric control system first disconnects lifting device motor power, and motor deceleration when close to stop position, such as approaches
When level position, electric control system controls 56 power loss of electromagnetic driver main body on schedule, push rod 57 moves back with protection block 58,
Pushing block 54 is moved back by the elastic force effect of spring 7, and pushing block 54 drives impeller-hub 53, drives promotion lever 52 by kidney slot 55
And be mounted on push lever 52 on roller shaft 59, idler wheel 60 follow protection block 58 and push rod 57 to move back and drive pull rod 5,
Pulling block 9 moves back together, and the movable axis 22 being fixed on pulling block 9 follows pulling block 9 to move back, drives lever left 10,20 postbrachium of right lever
It is rotated around left fixed shaft 11, right fixed shaft 21 toward outside, lever left 10, the left movable rack 13 of forearm drive of right lever 20, the right side
Movable rack 17 is mobile toward 18 center position of lifting device drive rack, until the retarder location at a fully engaged with drive rack 18
It sets, lifting device is reliably braked；The stopping of pushing block 54 moves back, but push rod 57 with protection block 58 continue to move back it is a bit of away from
From reaching and keep discontiguous state with idler wheel 60, described a small distance refers to 2~5mm distance；Adjusting nut group 6 is used
In the pressure of adjustment spring 7, the front position of the front end face of 8 fixed spring 7 of bracket；If there is abnormal conditions, such as go up and down
The unexpected power down of equipment or because lifting device overspeed protective device action power dump or because lifting device arrival pole
Extreme position protective device action power dump etc., lifting device general supply is immediately without electricity, other electricity-loss braking device packets at this time
The included power loss band brake apparatus of motor is included to play a role immediately braking, after the completion of the energy storage device that is delayed is delayed, electromagnetic propulsion
56 power loss of device main body, push rod 57 are moved back with protection block 58, be reset to original state, pushing block 54 moves back, left movable rack 13,
Right movable rack 17 and 18 positive engagement of drive rack, ensure that the safety of lifting device；In the case of emergency braking, left movable teeth
Item 13, right movable rack 17 may not have at a fully engaged with drive rack 18 at the beginning, and worst situation is as shown in Figure 4
When braking may there is a situation where the highest points of rack gear and highest point contact, temporarily become under the effect of elasticity at this time friction system
It is dynamic, if the braking moment of lifting device whole brake apparatus adds up and is enough to realize braking at this time, braking task completion；If
The braking moment of lifting device whole brake apparatus, which adds up, at this time is all not enough to prevent lifting device downslide, (because there is braking
Moment loading, so it is slower just to start the meeting of downslide), when slipping down to the position of be staggered highest point and highest point, left activity
Rack gear 13, right movable rack 17 will elastic force promotion under squeeze into drive rack 18 tooth socket in (referring to Fig. 5), then as after
It is continuous to glide, continue to squeeze into, until left movable rack 13, right movable rack 17 and 18 positive engagement of drive rack, implement braking；Institute
The electromagnetic driver stated is the long-stroke push-and-pull electromagnet of the way of propelling for a kind of selected working method, is a kind of novel electricity
Magnetic control actuator part is powered on control conversion, high-power start, the working method that small-power maintains, than generating using power supply
The old-fashioned electromagnet volume of onesize active force is smaller, self weight is lighter, more power saving；And due to using lever, can be used
The half more electromagnetic driver of thrust than pushing directly on, can be realized save the cost, energy saving effect.
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 pulling block 9 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, so that hand-operating unlocking mechanism fills rack-and-pinion lifting device electromagnetic propulsion safety arrestment
The movement set has no effect, when lifting device because suddenly have a power failure or other reason emergency brakings rest in cannot with it is any
When the position of one stop leveling, at this time clasp nut control crank 23 can be placed in closing position, make clasp nut combine 24
It normally engaged in "on" position, its box thread with the male thread of drive screw 25, manual operation worm screw control crank 26, make snail
Worm and gear retarder 27 rotates and drive screw 25 is driven to rotate, drive screw 25 is driven 24 forward movement of clasp nut combination,
Clasp nut combination 24 drives pulling block 9 to move forward, and the movable axis 22 being fixed on pulling block 9 follows the Forward of pulling block 9, drives left thick stick
Bar 10,20 postbrachium of right lever are rotated around left fixed shaft 11, right fixed shaft 21 toward inside, the forearm strap of lever left 10, right lever 20
It is mobile toward the direction for leaving 18 center of lifting device drive rack to move left movable rack 13, right movable rack 17, until with lifting
Device drives rack gear 18 is kept completely separate and has the free position in a bit of gap；Then Manual jigger mechanism is used, lifting is set
Standby nearest leveling；The hand-operating unlocking mechanism is necessarily placed at the position that securely and reliably cannot arbitrarily open, and has formulated regulations
System and strictly implement, it is ensured that only have qualification, authorized personnel could open and use.
The control system of the electromagnetic driver 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 electromagnetic driver 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.
A delay energy storage for including in the control unit of the electromagnetic driver 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 electromagnetic driver and energy storage
Between device, when lifting device obtains electric, normally-closed contact is disconnected, and the connection between electromagnetic driver 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 electromagnetic driver 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 electromagnetic driver with energy storage device, energy storage device is to electromagnetic propulsion
When delay time (discharge time) the constant design tuning of device is that other electricity-loss braking devices individually complete the braking that braking needs
Between with the operating mechanism of electromagnetic driver and movable rack movement total delay time difference；For example, certain lifting device
It is 3.5S, the manipulation machine of electromagnetic driver and movable rack that other electricity-loss braking devices, which individually complete the braking time that braking needs,
The movement total delay time of structure is 0.2S, then energy storage device is (3.5S- to the delay time constant design tuning of electromagnetic driver
0.2S=) 3.3S, after the completion of delay energy storage device delay, electromagnetic driver power loss.
Using each possibility of lifting device of rack-and-pinion lifting device levels electromagnetic lever safety catch of the invention
The distance between braking anchor point be the integral multiple of its drive rack tooth pitch (p=π m), therefore be configured with safety of the invention
The installation method of the lifting device of brake apparatus includes, when carrying out and install related civil construction early period, it is necessary to by layer
Stand and carry out precise measurement with the difference in height of stop, constructed accordingly to each stop sill and accurately control stop and stop it
Between on sill the difference in height of plane be that the integral multiple of drive rack tooth pitch (p=π m) allows to miss according to the regulation of GB/T10058
Difference is ± 10mm (construction internally controlling requirement should be less than this error amount)；In lifting device installation, it is correct adjust lifting device with
Drive rack is worked in coordination, so that lifting device carriage just stops leveling accuracy from first layer and in median, then after
Stop leveling can meet the requirements, or even when other individual leveling element failures, also can guarantee that stop is flat
Layer is accurate；And the requirement that leveling keeps precision that can be much better than ± 20mm as defined in GB/T10058.
The present invention carries out safeguard protection braking using rack gear engagement system, and avoiding existing friction catch mode may go out
It is existing because security risk caused by friction material abrasion or oil pollution etc., improves the reliability of safety arrestment；Using
Lever adds electromagnetic driver to be conducive to save the cost, energy saving；Horizontal direction configuration can be installed with top set or bottom setting,
The useful space in carriage is saved；Rack gear engagement leveling keep precision can achieve be much better than as defined in GB/T10058 ±
The requirement of 20mm；Therefore, it can play and save effective transport power, save the cost, energy saving, raising langding accuracy and safeguard protection
Brake the beneficial effect of quality.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of rack-and-pinion lifting device levels electromagnetic lever safety catch.
Fig. 2 is that the rack-and-pinion lifting device levels electromagnetic lever safety catch of Fig. 1 is in the signal of on-position
Figure.
Fig. 3 is the A-A partial sectional view of Fig. 1.
Fig. 4 is in lifting device drive rack for the movable rack that view direction same as shown in Figure 3 is shown and engages
The schematic diagram of on-position.
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
Electromagnetic lever safety catch is 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 is the levels electromagnetic lever safety catch of embodiment 1 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 push its internal structure each section of safety catch composition and effect illustrate as shown in Fig. 1~7, and
[0004] section, [0005] section, [0006] section, described in [0007] section, due to being related to the matching coordinative of multiple transmission systems, thus
It should be specifically noted that manufacturing quality and installation quality when manufacture and installation, including must ready-made include accurate described in [0008] section
The difference in height of plane is the related work of the integral multiple of drive rack tooth pitch (p=π m) on sill between control stop and stop,
It, could trial operation after guaranteeing that necessary precision, detection are qualified；The electric control system of lifting device uses embedded system conduct
Master control system, the course of work are that when system is without electricity including disconnecting power switch or accidental power failure etc. set lifting
Standby general supply disconnects, electromagnetic driver main body 56 is without electricity, and push rod 57 is in initial position and idler wheel 60 most with protection block 3
Low level there are also gap, the pushing block 54 of operating mechanism by the elastic force effect of spring 7 move back and drive pull rod 5, pulling block 9 together after
It moves, the movable axis 22 being fixed on pulling block 9 follows pulling block 9 to move back, drives lever left 10,20 postbrachium of right lever around left fixed shaft
11, right fixed shaft 21 is rotated toward outside, the left movable rack 13 of forearm drive, the right movable rack 17 of lever left 10, right lever 20
It is mobile toward 18 center position of lifting device drive rack, until the application position at a fully engaged with drive rack 18, pushing block 54
Stopping moves back, and the impeller-hub 53 being fixed on pushing block 54 while pushing block 54 moves back also moves back, and passes through 55 band of kidney slot
It is dynamic to push lever 52 around 51 back rotation of lever shaft is pushed, push the roller shaft 59 of 52 other end of lever, idler wheel 60 also with pushing away
Dynamic lever 52 rotates together, until the stopping of pushing block 54 moves back, idler wheel 60 reaches last position, has a bit of with protection block 58
Gap, contact condition, a bit of gap do not refer to the gap 2~5mm for holding；When electromagnetic driver main body 56 must be electric, push away
Bar 57 pushes the Forward of protection block 58, the Forward of 58 pushing rolling wheels 60 of protection block, roller shaft 59, and idler wheel 60, roller shaft 59, which drive, to be pushed
Lever 52 pushes lever 52 to drive impeller-hub 53, impeller-hub 53 to drive by kidney slot 55 around pushing lever shaft 51 to rotate forward
Pushing block 54 moves forward, and the drive of pushing block 54 pull rod 5, pulling block 9 moves forward together while compressed spring 7, the activity being fixed on pulling block 9
Axis 22 follows the Forward of pulling block 9, lever left 10,20 postbrachium of right lever is driven to rotate around left fixed shaft 11, right fixed shaft 21 toward inside,
Lever left 10, right lever 20 forearm drive left movable rack 13, right movable rack 17 toward leaving lifting device drive rack 18
The direction at center is mobile, until the free position in a bit of gap is kept completely separate and had with lifting device drive rack 18, safety
Brake apparatus is in free position state, is ready for lifting device starting, and a bit of gap refers between 2~5mm
Gap；When needing to stop after lifting device starting, the electric control system of lifting device first disconnects lifting device motor power, electricity
Motivation is slowed down, and when close to stop position, such as when close to level position, electric control system controls electromagnetic driver on schedule
56 power loss of main body, push rod 57 is moved back with right protection block 58, pushing block 54 is moved back by the elastic force effect of spring 7,54 band of pushing block
Dynamic impeller-hub 53 drives the roller shaft 59 for pushing lever 52 and being mounted on promotion lever 52, idler wheel 60 by kidney slot 55
Follow protection block 58 and push rod 57 to move back and pull rod 5, pulling block 9 driven to move back together, be fixed on movable axis 22 on pulling block 9 with
It is moved back with pulling block 9, lever left 10,20 postbrachium of right lever is driven to rotate around left fixed shaft 11, right fixed shaft 21 toward outside, lever left
10, the forearm of right lever 20 drives left movable rack 13, right movable rack 17 to move toward 18 center position of lifting device drive rack
It is dynamic, until the application position at a fully engaged with drive rack 18, reliably brakes lifting device；The stopping of pushing block 54 moves back, but
It is that push rod 57 continues to move back a small distance with protection block 58, reaches and keep discontiguous state with idler wheel 60, described one
Segment distance refers to 2~5mm distance；Adjusting nut group 6 is used for the pressure of adjustment spring 7, the front end face of 8 fixed spring 7 of bracket
Front position；If there is abnormal conditions, such as the unexpected power down of lifting device or because lifting device overspeed protective device
Action power dump or because lifting device reaches the limit of guarded by location device action and cuts off the power etc., lifting is set at this time
For standby general supply immediately without electricity, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays a role system immediately
Dynamic, after the completion of energy storage device delay, 56 power loss of electromagnetic driver main body, push rod 57 is moved back with protection block 58 to be reset to initially
State, pushing block 54 move back, left movable rack 13, right movable rack 17 and 18 positive engagement of drive rack, ensure that lifting is set
Standby safety；In the case of emergency braking, left movable rack 13, right movable rack 17 may not have at the beginning with drive rack 18
Full engagement, when worst situation is braking as shown in Figure 4 may there is a situation where the highest point of rack gear and highest point contact,
Friction catch is temporarily become under the effect of elasticity at this time, if the braking moment of lifting device whole brake apparatus adds up at this time
It is enough to realize braking, braking task is completed；If the braking moment of lifting device whole brake apparatus adds up all insufficient at this time
To prevent lifting device downslide, (because there is braking moment effect, it is slower just to start the meeting of downslide) is staggered when slipping down to
When the position of highest point and highest point, left movable rack 13, right movable rack 17 will squeeze into drive rack under elastic force promotion
(referring to Fig. 5) in 18 tooth socket, then as continuing to glide, continue to squeeze into, until left movable rack 13, right movable rack 17 with
18 positive engagement of drive rack implements braking；；When lifting device because power failure or other reason emergency brakings rest in suddenly
When cannot 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
Nut combination 24 is normally engaged in "on" position, its box thread with the male thread of drive screw 25, manual operation worm screw manipulates
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 forward, clasp nut combination 24 drives pulling block 9 to move forward, before the movable axis 22 being fixed on pulling block 9 follows pulling block 9
It moves, lever left 10,20 postbrachium of right lever is driven to rotate around left fixed shaft 11, right fixed shaft 21 toward inside, lever left 10, right lever
20 forearm drives left movable rack 13, 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 hand turning machine is used
Structure makes the nearest leveling of lifting device；The hand-operating unlocking mechanism is necessarily placed at the position that securely and reliably cannot arbitrarily open,
It has formulated rules and regulations and has strictly implemented, it is ensured that only had 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 level of the present invention
The elevator of electromagnetic lever safety catch, its internal structure each section of the levels electromagnetic lever safety catch of use composition
And the explanation of effect is seen shown in Fig. 1~7, and described in [0004] section, [0005] section, [0006] section, [0007] section, work is former
It manages described identical as [0019] section.
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 rack-and-pinion lifting device levels electromagnetic lever safety catch, characterized in that device is matched by horizontal direction
It sets, in lifting device car top or bottom or other reasonable positions, composition includes installation site, load-supporting part,
Rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, movable rack operating mechanism
Control device, hand-operating unlocking mechanism；The load-supporting part includes direct load-supporting part or middle transition load-supporting part；It is described
Rail assembly include horizontal rail that track window aperture, guide plate, load-supporting part and upper rail and lower rail are formed, the activity
Rack gear includes right movable rack and left movable rack, and the right movable rack and left movable rack pass through track window aperture, living
The tooth form for the part of carry-over bar being associated with the drive rack of lifting device is in and can nibble with the drive rack of lifting device
It closes and realizes and drive on position of the perhaps isolated position by the way that certain determinations are moved horizontally or be maintained on rail assembly
The engagement or separation of rack gear, the position of the determination, including the application position that is engaged with lifting device drive rack or
The free position in a bit of gap is kept completely separate and had with lifting device drive rack, and described has a bit of gap, refers to
Drive rack and movable rack tooth top interplanar corresponding thereto have the gap 2~5mm；The cooperation ruler of movable rack and horizontal rail
Very little to cooperate to be dynamic, contact surface is smooth low coefficient of friction surfaces, to be conducive to the movement of movable rack, right movable rack and a left side
Load-bearing is directly contacted with load-supporting part and upper rail after entering on-position at the top of movable rack；The limit of the movable rack
Mechanism, which includes that at least one direction of the inner face either above or below for the part of movable rack being associated with guide rail is provided with, to be led
To slot, the mating part of guide groove and guide plate is dynamic cooperation, to prevent outside or inside play of the movable rack to carriage；
Middle transition is directly contacted or passed through with the load-supporting part of lifting device carriage after entering on-position at the top of movable rack
Load-supporting part contacts load-bearing；The operating mechanism manipulation activities rack gear of movable rack moves horizontally on orbit hole or stops holding
On the position of certain determinations, the operating mechanism of the movable rack is arranged in the branch in the horizontal plane direction of lifting device carriage
It holds in structure；The operating mechanism of the movable rack includes, lever left, right lever, left fixed shaft, right fixed shaft, movable axis,
Pulling block, spring, adjusting nut group, pull rod, pushing block, impeller-hub, pushes lever, the kidney-shaped pushed on lever is arranged in bracket
Hole pushes lever shaft, roller shaft, idler wheel, protection block；The control device of the operating mechanism of the movable rack includes electromagnetism
Push rod, electromagnetic driver main body, the electromagnetic driver main body include the electromagnetic system of electromagnetic driver, control system, institute
The control system for the electromagnetic driver stated is powered and is controlled by lifting device electric control system；The lifting device electric-controlled
It further include a delay energy storage device in the control unit of the electromagnetic driver of system processed, when lifting device electric control system obtains
After electricity when power loss, electromagnetic driver not power loss immediately, but after the completion of being delayed energy storage device delay, electromagnetic driver loses
Electricity；When lifting device general supply is disconnected without electricity, lifting device remains static；The operating mechanism of the movable rack
Actual motion direction is that direction defines herein along the horizontal plane to describe clearly, before drive rack direction is, electromagnetic driver master
Mobile to move forward to drive rack direction after body direction is, mobile to electromagnetic driver main direction is to move back；Movable rack
The operating mechanism course of work is that original state or electroless state, electromagnetic driver main body are in without electricity, push rod with protection block
There are also gap, the pushing blocks of operating mechanism to be moved back and be driven by the elastic force effect of spring for the lowest order of initial position and idler wheel
Pull rod, pulling block move back together, and the movable axis being fixed on pulling block follows pulling block to move back, drives lever left, right lever postbrachium around a left side
Fixing axle, right fixed shaft are rotated toward outside, lever left, the left movable rack of forearm drive of right lever, the past lifting of right movable rack
Device drives rack gear center position is mobile, until the application position at a fully engaged with drive rack, pushing block stopping is moved back, and is pushing away
The impeller-hub being fixed on pushing block while motion block moves back also moves back, and is driven by kidney slot and pushes lever around promotion lever shaft
Back rotation, the roller shaft for pushing the lever other end, idler wheel are also with pushing lever to rotate together, until after pushing block stops
It moves, idler wheel reaches last position, has a bit of gap with protection block, keeps not contact condition；When electromagnetic driver main body obtains electric,
Push rod pushes protection block Forward, the Forward of protection block pushing rolling wheels, roller shaft, and idler wheel, roller shaft, which drive, pushes lever around promotion thick stick
Rotation before bar is axial pushes lever to drive impeller-hub, impeller-hub to drive pushing block Forward by kidney slot, and pushing block, which drives, to be drawn
Bar, pulling block move forward together while compressed spring, and the movable axis being fixed on pulling block follows pulling block Forward, drives lever left, You Gang
Bar postbrachium is rotated around left fixed shaft, right fixed shaft toward inside, lever left, the left movable rack of forearm drive of right lever, right activity
Rack gear is mobile toward the direction for leaving lifting device drive rack center, until being kept completely separate with lifting device drive rack and having one
The free position in segment gap, safety catch are in free position state, are ready for lifting device starting；Lifting is set
When needing to stop after standby starting, the electric control system of lifting device first disconnects lifting device motor power, motor deceleration,
When close to stop position, the stop position includes level position, and electric control system controls electromagnetic driver on schedule
Main body power loss, push rod is moved back with protection block, pushing block is moved back by the elastic force effect of spring, and pushing block drives impeller-hub, passes through
Kidney slot, which drives to push lever and be mounted on, pushes roller shaft, idler wheel on lever that protection block and push rod is followed to move back and band
Dynamic pull rod, pulling block move back together, the movable axis being fixed on pulling block follows pulling block to move back, drive lever left, right lever postbrachium around
Left fixed shaft, right fixed shaft are rotated toward outside, lever left, the left movable rack of forearm drive of right lever, the past liter of right movable rack
The movement of device drives rack gear center position is dropped, until the application position at a fully engaged with drive rack, reliably makes lifting device
It is dynamic；Pushing block stopping moves back, but push rod continues to move back a small distance with protection block, reaches and keeps discontiguous with idler wheel
State；Adjusting nut group is used for the pressure of adjustment spring, the front position of the front end face of bracket fixed spring；If there is exception
Situation, including the unexpected power down of lifting device or because lifting device overspeed protective device action power dump or because liter
Drop equipment reaches the limit of guarded by location device action and cuts off the power, and lifting device general supply is immediately without electricity, other power loss systems at this time
Dynamic device includes that the included power loss band brake apparatus of motor plays a role braking immediately, after the completion of the energy storage device that is delayed is delayed,
Electromagnetic driver main body power loss, push rod moves back with protection block and is reset to original state, pushing block moves back, left movable rack, the right side
Movable rack and drive rack positive engagement, ensure that the safety of lifting device；The electromagnetic driver is a kind of selected work
Make the long-stroke push-and-pull electromagnet that mode is the way of propelling, is a kind of novel Electromagnetic Control actuator part, using power supply
Power-up control conversion, high-power start, the working method that small-power maintains.
2. rack-and-pinion lifting device levels electromagnetic lever safety catch according to claim 1, characterized in that institute
The hand-operating unlocking mechanism stated, including, clasp nut control crank, clasp nut combination, drive screw, worm screw control crank, snail
Worm and gear retarder, wherein clasp nut combination with pulling block be fixedly connected, the worm gear of drive screw and worm type of reduction gearing
To be fixedly connected, usual, clasp nut control crank, which is placed in, opens a sluice gate position, clasp nut combination in state of opening a sluice gate, its female spiral shell
Line has no effect to the movement that clasp nut combines without engagement, drive screw with the male thread of drive screw, to solve manually
Latch mechanism to rack-and-pinion lifting device levels electromagnetic push safety catch movement have no effect, when lifting device because
For have a power failure suddenly or other reason emergency brakings rest in cannot be with the position of any one stop leveling when, at this time can be opening
Nut control crank is closed to be placed in closing position, make clasp nut combination in "on" position, the public affairs of its box thread and drive screw
Screw thread normally engages, manual operation worm screw control crank, rotates worm type of reduction gearing and drive drive screw rotation, transmission
The combination of screw drive clasp nut moves forward, clasp nut combination drives pulling block to move forward, the activity being fixed on pulling block
Axis follows pulling block Forward, lever left, right lever postbrachium is driven to rotate around left fixed shaft, right fixed shaft toward inside, lever left, You Gang
The forearm of bar drives left movable rack, right movable rack mobile toward the direction for leaving lifting device drive rack center, until with
Lifting device drive rack is kept completely separate and has the free position in a bit of gap；Then Manual jigger mechanism is used, makes to go up and down
The nearest leveling of equipment；The hand-operating unlocking mechanism is necessarily placed at the position that securely and reliably cannot arbitrarily open, and has formulated rule
Chapter system and strictly implement, it is ensured that only have qualification, authorized personnel could open and use.
3. rack-and-pinion lifting device levels electromagnetic lever safety catch according to claim 1, characterized in that institute
The control system for the electromagnetic driver stated is powered and is controlled by lifting device electric control system, the control of electric control system
It include that, when lifting device prepares to start, the electric control system control lifting device drive system of lifting device is driven in step
Dynamic lifting device moves up a distance element, puts down the lower plane of load-supporting part with right movable rack and the upper of left movable rack
There is a microgap in face, and the numerical value of the microgap is left movable rack, right movable rack and lifting device drive rack side
0.2~0.6 times of gap；Then control electromagnetic driver main body obtains electric, drives left movable rack, right movable rack are past to leave lifting
The direction at device drives rack gear center is mobile, until the freedom in a bit of gap is kept completely separate and had with lifting device drive rack
Position is ready for lifting device starting.
4. rack-and-pinion lifting device levels electromagnetic lever safety catch according to claim 1, characterized in that institute
A delay energy storage device for including in the control unit of the electromagnetic driver for the lifting device electric control system stated, 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 electromagnetic driver and energy storage device, is risen
When drop equipment obtains electric, normally-closed contact is disconnected, and the connection between electromagnetic driver and energy storage device also disconnects, energy storage device energy storage；
When lifting device power loss, other electricity-loss braking devices include 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 electromagnetic driver immediately
Normally-closed contact power loss closure, connect electromagnetic driver with energy storage device, delay time of the energy storage device to electromagnetic driver
(discharge time) constant design tuning is the braking time and electromagnetic propulsion that other electricity-loss braking devices individually complete that braking needs
The difference of the movement total delay time of the operating mechanism of device and movable rack；It is delayed after the completion of energy storage device delay, electromagnetic propulsion
Device power loss.
5. rack-and-pinion lifting device levels electromagnetic lever safety catch according to claim 1, characterized in that match
The installation method for being equipped with the lifting device of rack-and-pinion lifting device levels electromagnetic lever safety catch of the invention includes,
When carrying out and install related civil construction early period, it is necessary to carry out precise measurement by the difference in height to stop and stop, accordingly
The difference in height that plane on sill between stop and stop is constructed and accurately controlled to each stop sill is drive rack tooth pitch
Integral multiple, it is correct to adjust working in coordination for lifting device and drive rack in lifting device installation so that lifting device sedan-chair
Leveling accuracy is just stopped from first layer and in median in compartment.
6. a kind of elevator, characterized in that install and use gear teeth described in any claim in claim 1- claim 5
Lifting device levels electromagnetic lever safety catch.
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| CN201611221125.2A CN106629303B (en) | 2016-12-27 | 2016-12-27 | Rack-and-pinion lifting device levels electromagnetic lever safety catch |
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| CN201611221125.2A CN106629303B (en) | 2016-12-27 | 2016-12-27 | Rack-and-pinion lifting device levels electromagnetic lever safety catch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102019104339A1 (en) * | 2019-02-20 | 2020-08-20 | Thyssenkrupp Ag | Release system for a safety gear, elevator system and method for operating an elevator system |
| CN110407059B (en) * | 2019-07-02 | 2024-01-16 | 广西科技大学 | Safety protection device for cable chain lifting system |
| CN110775776B (en) * | 2019-11-22 | 2021-05-07 | 山东富士制御电梯有限公司 | Spiral self-driving elevator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB554673A (en) * | 1942-03-03 | 1943-07-14 | Wm Wadsworth & Sons Ltd | Improvements relating to safety devices for lifts or elevators |
| CN2392751Y (en) * | 1999-11-09 | 2000-08-23 | 贵州省机械化施工公司 | Protection device for preventing shaped steel headgear hanging basket fro dropping off |
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| JP4520319B2 (en) * | 2005-01-26 | 2010-08-04 | 三菱電機株式会社 | Rail gripping mechanism and elevator safety device using the same |
| JP5228120B2 (en) * | 2012-02-01 | 2013-07-03 | 株式会社ラインワークス | Elevating body fall prevention device and work equipment with elevating body fall prevention device equipped with it |
| JP6348074B2 (en) * | 2015-02-23 | 2018-06-27 | 株式会社日立製作所 | Emergency stop device and elevator |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB554673A (en) * | 1942-03-03 | 1943-07-14 | Wm Wadsworth & Sons Ltd | Improvements relating to safety devices for lifts or elevators |
| CN2392751Y (en) * | 1999-11-09 | 2000-08-23 | 贵州省机械化施工公司 | Protection device for preventing shaped steel headgear hanging basket fro dropping off |
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Effective date of registration: 20191225 Address after: 300000 No. 357, free trade road, Airport Economic Zone, Dongli District, Tianjin Patentee after: TIANJIN JINHANG INSTITUTE OF COMPUTING TECHNOLOGY Address before: 4, 528459 floor, No. 2, Xinxing Avenue, Zhongshan Town, Guangdong, A5 Patentee before: Liao Zhongmin |
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