CN106744138A - Rack-and-pinion jacking equipment levels electromagnetic promotes safety catch - Google Patents
Rack-and-pinion jacking equipment levels electromagnetic promotes safety catch Download PDFInfo
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- CN106744138A CN106744138A CN201611221130.3A CN201611221130A CN106744138A CN 106744138 A CN106744138 A CN 106744138A CN 201611221130 A CN201611221130 A CN 201611221130A CN 106744138 A CN106744138 A CN 106744138A
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- China
- Prior art keywords
- jacking equipment
- movable rack
- tooth bar
- rack
- electromagnetic driver
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Classifications
-
- 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
- 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
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
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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
- B66B5/028—Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack
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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)
- Automation & Control Theory (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
A kind of rack-and-pinion jacking equipment levels electromagnetic promotes 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；Movable rack top contact load-bearing after on-position is entered with the main load-carrying members directly contact of jacking equipment car or by middle transition load-supporting part, the operating mechanism manipulation activities tooth bar of the movable rack configured by horizontal direction moved horizontally on orbit hole or stops be maintained at including with the jacking equipment application position that engages of driving tooth bar or completely disengaged with jacking equipment driving tooth bar and have the free position of an intersegmental gap；Alleviator is conducive to conduct oneself with dignity using electromagnetic driver；Play and mitigate deadweight, save the useful space, significantly improve langding accuracy and the beneficial effect of safeguard protection braking quality.
Description
Technical field
The present invention relates to jacking equipment safety catch field, more particularly to a kind of rack-and-pinion jacking equipment level
Electromagnetic propulsion safety catch.
Background technology
The existing safety catch of rack-and-pinion jacking equipment, is, by various methods, drive gear is stopped operating
To realize；But if drive gear occurs problem, such as the gear teeth are damaged, even if gear is not rotated, cannot guarantee that reliable system
It is dynamic；To ensure safety, pinion and-rack jacking equipment must configure it is reliable cope with including drive gear occur problem with
And the safety catch of similar safety problem.
The content of the invention
The purpose of the present invention, is to provide a kind of reliable coping with and problem and similar safety occurs including drive gear
The safety catch of problem.
Fig. 1 is the structural representation that a kind of rack-and-pinion jacking equipment levels electromagnetic promotes safety catch, it is illustrated that side
To from the top of rack-and-pinion jacking equipment car 60, to shed top car outside plate finding viewed from above, so for lifting
Device drives tooth bar 18 can only see its top, and right movable rack 17 has carried out broken section treatment, that 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 tooth bar in the middle of center chain-dotted line table
The vertical median plane perpendicular to tooth bar projection plane for showing is the mirror symmetric figure of symmetrical plane, and support 7 is half section, its activity
The control device of the operating mechanism of tooth bar includes that electromagnetic driver, Fig. 1 is shown movable rack and drives tooth bar with jacking equipment
The state of separation, described levels electromagnetic promotes safety catch to be in free position state；Fig. 2 is the gear shown in Fig. 1
Gear rack elevating equipment level electromagnetic propulsion safety catch tooth bar engagement in on-position schematic diagram, projecting direction with
The projecting direction of Fig. 1 is identical；Fig. 3 is the A-A partial sectional views of Fig. 1, and direction is from the eyes front of A-A sections (in terms of tooth bar direction)
Finding, drawing shows the lever left 10, You Gang of the operating mechanism of rail assembly, movable rack, movable rack and movable rack
The annexation of bar 20, the state of display is that movable rack drives tooth bar to separate in free position state with jacking equipment；Fig. 4
Showing for on-position is engaged for the movable rack that view direction same as shown in Figure 3 shows drives tooth bar to be in jacking equipment
It is intended to；Fig. 5 is the B-B partial sectional views of Fig. 1, and direction is (in terms of toward centerline direction) finding of turning right from B-B sections, drawing from
Vertical section direction shows rail assembly, movable rack, movable rack, the connection of the lever left 10 of the operating mechanism of movable rack
Relation；A kind of rack-and-pinion jacking equipment levels electromagnetic promotes safety catch, and (hereinafter referred to as levels electromagnetic promotes safety system
Dynamic device), it is characterized in that, device is configured by horizontal direction, installation site jacking equipment car top or bottom or its
Its rational position, its composition includes, load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, movable teeth
The operating mechanism of bar, the control device of the operating mechanism of movable rack, hand-operating unlocking mechanism；Described load-supporting part includes direct
Load-supporting part or middle transition load-supporting part；Described rail assembly includes track window aperture 12, guide plate 29, load-supporting part
The horizontal rail that simultaneous upper rail 16 and lower rail 19 are formed, described movable rack includes left movable rack 13 and right movable rack 17,
Described left movable rack 13 and right movable rack 17 pass through track window aperture 12, the sliding tooth with jacking equipment of movable rack
The tooth form of the part that bar 18 is associated is in the position that can engage or be separate with the driving tooth bar 18 of jacking equipment, by
Moved horizontally on rail assembly or be maintained in some defined locations realize with driving tooth bar 18 engagement or separate, institute
The defined location stated, including drive the application position that engage of tooth bar or complete with jacking equipment driving tooth bar with jacking equipment
Free position that is fully separating and having a bit of gap, described has a bit of gap, refers to drive tooth bar and corresponding thereto
Movable rack tooth top interplanar has 2~5mm gaps；Movable rack is dynamic cooperation, contact surface with the fit dimension of horizontal rail
It is smooth low coefficient of friction surfaces, to be conducive to the movement of movable rack, left movable rack 13 and the top of right movable rack 17 exist
With load-supporting part and the directly contact load-bearing of upper rail 16 after into on-position；The position-limit mechanism of described movable rack includes, living
At least one direction of the inner face either above or below of the part being associated with guide rail of carry-over bar is provided with gathering sill, (referring to
Fig. 5), gathering sill and the mating part of guide plate 29 are dynamic cooperation, to prevent outside or inner side of the movable rack to car 60
Play；Movable rack top (is load-supporting part in Fig. 2, Fig. 4 with the load-supporting part of jacking equipment car after on-position is entered
And upper rail 16) directly contact or by middle transition load-supporting part contact load-bearing；The operating mechanism manipulation activities of movable rack
Tooth bar is moved horizontally or stopped on orbit hole and is maintained in some defined locations, the operating mechanism of described movable rack
It is arranged in the support structures 28 in the horizontal plane direction of jacking equipment car, described rack-and-pinion jacking equipment levels electromagnetic is pushed away
Dynamic safety catch, its installation site includes the top or bottom or other rational positions of car；Described activity
The control device of the operating mechanism of tooth bar includes electromagnetic driver, and described electromagnetic driver is that a kind of selected working method is
The long-stroke push-and-pull electromagnet of promotion, is a kind of new Electromagnetic Control action executing device, is changed using power supply power-up control, greatly
Energetic start up, the working method that small-power is maintained, than producing that the old-fashioned electromagnet volume of onesize active force is smaller, deadweight more
Gently, more power saving；Described electromagnetic driver includes push rod 2, electromagnetic driver main body 1, and described electromagnetic driver main body 1 includes
The electromagnetic system of electromagnetic driver, control system, the control system of described electromagnetic driver is by jacking equipment electrical control system
System power supply and control.
The operating mechanism of described movable rack includes, lever left 10, right lever 20, left fixed shaft 11, right fixed shaft 21,
Movable axis 22, pulling block 9, support 8, spring 7, adjusting nut group 6, pull bar 5, jacking block 4, protection block 3；The behaviour of described movable rack
The control device of vertical mechanism includes electromagnetic driver, described electromagnetic driver include electromagnetism push rod 2, electromagnetic driver main body 1,
Electromagnetic system, the control system of described electromagnetic driver main body including electromagnetic driver, the control of described electromagnetic driver
System is powered and is controlled by jacking equipment electric control system；The electromagnetic driver of described jacking equipment electric control system
Also include one in control unit only by the contactor or the combination of relay adjunction tentaculum and energy storage device of general supply control, institute
State only by general supply control contactor or relay adjunction tentaculum combination a normally-closed contact be connected across electromagnetic driver with
Between energy storage device, when jacking equipment obtains electric, normally-closed contact is disconnected, and the connection between electromagnetic driver and energy storage device is also broken
Open, energy storage device energy storage；During jacking equipment dead electricity, other electricity-loss braking devices stand including the dead electricity band brake apparatus that motor is carried
Play a role braking, but electromagnetic driver not dead electricity immediately, it is described only by general supply control contactor or after
The normally-closed contact of electrical equipment adjunction tentaculum combination makes electromagnetic driver be connected with energy storage device because coil losing electricity is closed, energy storage dress
Put to time delay (discharge time) constant design tuning of electromagnetic driver as other all electricity-loss braking devices complete braking
The difference of the action total delay time of the braking time and electromagnetic driver of needs and the operating mechanism of movable rack；For example, certain
The braking time that other electricity-loss braking devices of platform jacking equipment individually complete braking and need is 3.5S, electromagnetic driver and activity
The action total delay time of the operating mechanism of tooth bar is 0.3S, then energy storage device is designed the time delay constant of electromagnetic driver
It is (3.5S-0.3S=) 3.2S to adjust, after the completion of energy storage device time delay, electromagnetic driver dead electricity；When jacking equipment general supply is disconnected
Drive (including the state after original state or dead electricity after the release of energy storage device energy), jacking equipment during without electricity and be in static shape
State；The actual motion direction of the operating mechanism of described movable rack is direction along the horizontal plane, for narration is clear, is defined herein,
It is preceding to drive the direction of tooth bar 18, is reach to the movement of the direction of tooth bar 18 is driven, to electromagnetism after the direction of electromagnetic driver main body 1 is
The movement of the direction of pusher body 1 is moved after being, (if Fig. 1, Fig. 2 are placed vertically, it is exactly up relative to drawing to move forward, after
Shifting is exactly descending relative to drawing)；The operating mechanism course of work of movable rack is, when electromagnetic driver 1 dead electricity of main body,
Electromagnetism push rod 2 with protection block 3 after move, jacking block 4 by spring 7 elastic force effect immediately following protection block 3 and electromagnetism push rod 2 after move and
Pull bar 5, pulling block 9 is driven to move afterwards together, the movable axis 22 being fixed on pulling block 9 is moved after following pulling block 9, drives lever left 10, the right side
The postbrachium of lever 20 is rotated around left fixed shaft 11, right fixed shaft 21 toward outside, and lever left 10, the forearm of right lever 20 drive left activity
Tooth bar 13, right movable rack 17 drive the movement of the center position of tooth bar 18 toward jacking equipment, until at a fully engaged with tooth bar 18 is driven
Application position, jacking block 4 stop after move, but electromagnetism push rod 2 with protection block 3 continue after move a small distance, reach and top
Block 4 keeps discontiguous state, described to ensure left movable rack 13, right movable rack 17 and drive the positive engagement of tooth bar 18
A small distance, refer to 2~5mm distances；When electromagnetic driver main body 1 must be electric, control electromagnetism push rod 2 is moved forward, and electromagnetism is pushed away
Bar 2 moves forward with protection block 3, the top pressure of protected piece 3 of jacking block 4 also moves forward and drives pull bar 5, pulling block 9 to move forward together simultaneously
Compression spring 7, the movable axis 22 being fixed on pulling block 9 follows pulling block 9 to move forward, drives lever left 10, the postbrachium of right lever 20 around a left side
Fixing axle 11, right fixed shaft 21 are rotated toward inner side, and lever left 10, the forearm of right lever 20 drive left movable rack 13, right activity
Tooth bar 17 drives the direction movement at the center of tooth bar 18 toward jacking equipment is left, until driving tooth bar 18 to be kept completely separate with jacking equipment
And having the free position in a bit of gap, described a bit of gap refers to 2~5mm gaps；Adjusting nut group 6 is used to adjust
The pressure of spring 7, support 8 supports the front position of the front end face of fixed spring 7；If there is abnormal conditions, such as lifting sets
Reached the limit of for unexpected power down or because of jacking equipment overspeed protective device action power dump or because of jacking equipment
Guarded by location device action is cut off the electricity supply etc., and now immediately without electricity, other electricity-loss braking devices include jacking equipment general supply
The dead electricity band brake apparatus that motor is carried play a role braking, after the completion of energy storage device time delay, electromagnetic driver main body 1 immediately
Dead electricity, electromagnetism push rod 2 with protection block 3 after move be reset to original state, jacking block 4 after shifting, left movable rack 13, right movable rack
17 with drive the positive engagement of tooth bar 18, it is ensured that the safety of jacking equipment；In the case of brake hard, left movable rack 13, right work
Carry-over bar 17 may not have at a fully engaged with tooth bar 18 is driven at the beginning, and worst situation can when being braking as shown in Figure 6
The situation that the peak and peak that tooth bar can occur are contacted, now temporarily becomes friction catch under elastic force effect, if this
When jacking equipment whole brake apparatus braking moment add up and be enough to realize braking, braking task is completed；If now lifted
The braking moment of equipment whole brake apparatus is added up and be all not enough to prevention jacking equipment downslide, (because there is braking moment to act on,
So it is slower just to start the meeting of downslide), when the position of stagger peak and peak is slipped down to, left movable rack 13, the right side
Movable rack 17 will be clamp-oned in the teeth groove for driving tooth bar 18 (referring to Fig. 7) under elastic force promotion, be glided then as continuation, after
It is continuous to clamp-on, until left movable rack 13, right movable rack 17 and the driving positive engagement of tooth bar 18, implement braking；Fig. 6 is Fig. 1's
C-C partial sectional views direction, may occur the view that the peak of tooth bar and peak are contacted, projection side when braking
To be from jacking equipment toward drive tooth bar 18 direction observe；Fig. 7 is the same view direction of Fig. 6, when left movable rack, right work
Carry-over bar clamp-ons the schematic diagram during jacking equipment drives the teeth groove of tooth bar under elastic force promotion.
Described hand-operating unlocking mechanism, including, the combination 24, drive screw 25 of clasp nut control crank 23, clasp nut,
Worm screw control crank 26, worm type of reduction gearing 27, wherein clasp nut combination 24 with pulling block 9 to be fixedly connected, drive screw
25 is to be fixedly connected with the worm gear of worm type of reduction gearing 27, and usual, clasp nut control crank 23 is placed in and opens a sluice gate position, folding
Nut combination 24 in open a sluice gate the male thread of state, its box thread and drive screw 25 without engaging, drive screw 25 is to folding spiral shell
The motion of mother's combination 24 has no effect, so that hand-operating unlocking mechanism promotes safety system to rack-and-pinion jacking equipment levels electromagnetic
The motion of dynamic device has no effect, when jacking equipment because have a power failure suddenly or other reason brake hards rest in can not be with
During the position of any one stop flat bed, now clasp nut control crank 23 can be placed in closing position, make clasp nut group
Close 24 normally engaged with the male thread of drive screw 25 in "on" position, its box thread, manually operate worm screw control crank 26,
Rotate worm type of reduction gearing 27 and drive drive screw 25 to rotate, the transmission clasp nut of drive screw 25 combines 24 to reach
Dynamic, clasp nut combination 24 drives pulling block 9 to move forward, and the movable axis 22 being fixed on pulling block 9 follows pulling block 9 to move forward, drive
Lever left 10, the postbrachium of right lever 20 are rotated around left fixed shaft 11, right fixed shaft 21 toward inner side, before lever left 10, right lever 20
Arm drives left movable rack 13, right movable rack 17 toward the direction movement for leaving jacking equipment driving tooth bar 18 center, until with
Jacking equipment drives tooth bar 18 to be kept completely separate and have the free position in a bit of gap；Then Manual jigger mechanism is used, makes liter
Drop equipment flat bed nearby；Described hand-operating unlocking mechanism is necessarily placed at the safe and reliable position that can not arbitrarily open, and formulates
Rules and regulations and strictly implement, it is ensured that only possess qualification, authorized personnel could open and use.
The control system of described electromagnetic driver is powered and is controlled by jacking equipment electric control system, its electrical control
The rate-determining steps of system include, when jacking equipment prepares to start, the electric control system control jacking equipment of jacking equipment
Drive system drives jacking equipment to move up a distance element, makes the lower plane of load-supporting part 16 and right movable rack 17 and a left side
The upper plane of movable rack 13 has a microgap, and the numerical value of described microgap is left movable rack 13, right movable rack 17
With 0.2~0.6 times that jacking equipment drives the sideshake of tooth bar 18；Then control electromagnetic driver main body 1 obtains electric, drives left movable teeth
Bar 13, right movable rack 17 drive the direction movement at tooth bar 18 center toward jacking equipment is left, until with jacking equipment sliding tooth
Bar 18 is kept completely separate and has the free position in a bit of gap, is that jacking equipment startup is ready.
Each possibility of jacking equipment of safety catch is promoted using rack-and-pinion jacking equipment levels electromagnetic of the invention
The distance between braking anchor point be that it drives the integral multiple of tooth bar tooth pitch (p=π m), therefore be configured with safety of the invention
The installation method of the jacking equipment of brake apparatus includes, when carrying out and install relevant early stage civil engineering, it is necessary to by layer
Stand and the difference in height of stop carry out accurate measurement, each stop sill is constructed accordingly and accurately control stop and stop it
Between on sill plane difference in height to drive the integral multiple of tooth bar tooth pitch (p=π m), according to the regulation of GB/T10058, it is allowed to by mistake
Difference is ± 10mm (construction internally controlling requirement should be less than this error amount)；When jacking equipment is installed, correct regulation jacking equipment with
Drive working in coordination for tooth bar so that jacking equipment car just stops leveling accuracy from ground floor and in median, then after
Stop flat bed can just meet the requirements, or even when other indivedual flat bed element failures, also can guarantee that stop is flat
Layer is accurate；And flat bed holding precision can be much better than the requirement of ± 20mm of GB/T10058 regulations.
The present invention carries out safeguard protection braking using tooth bar engagement system, it is to avoid existing friction catch mode may go out
The existing potential safety hazard caused because of friction material abrasion or oil pollution etc., improves the reliability of safety arrestment；Using
Electromagnetic driver is conducive to mitigating conducts oneself with dignity；Horizontal direction configuration can be set with top set or bottom and be installed, and saved in car
The useful space；Tooth bar engagement flat bed holding precision can reach the requirement of ± 20mm for being much better than GB/T10058 regulations；Therefore,
Can play and mitigate the beneficial effect that the deadweight saving useful space significantly improves langding accuracy and safeguard protection braking quality.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of rack-and-pinion jacking equipment levels electromagnetic promotes safety catch.
Fig. 2 promotes safety catch to be in the signal of on-position for the rack-and-pinion jacking equipment levels electromagnetic of Fig. 1
Figure.
Fig. 3 is the A-A partial sectional views of Fig. 1.
Fig. 4 is that the movable rack that shows of view direction same as shown in Figure 3 drives tooth bar to be in engage with jacking equipment
The schematic diagram of on-position.
Fig. 5 is the B-B partial sectional views of Fig. 1.
Fig. 6 is the C-C partial sectional views direction of Fig. 1, and the peak that tooth bar may occur when braking is contacted with peak
View.
Fig. 7 is the same view direction of Fig. 6, when left movable rack, right movable rack are clamp-oned lifting and set under elastic force promotion
Schematic diagram in the teeth groove of standby driving tooth bar.
Fig. 8 is the schematic diagram of embodiment 1.
The situation schematic diagram that Fig. 9 is braked for the safety catch of embodiment 1 to jacking equipment.
Specific embodiment
Embodiment 1, Fig. 8 for embodiment 1 schematic diagram, drawing show be jacking equipment side outward appearance, described level
Electromagnetic propulsion safety catch is arranged on the top of pinion and-rack jacking equipment, temporarily in free position, jacking equipment
Situation in preparing operation or being currently running, Fig. 9 is that the levels electromagnetic of embodiment 1 promotes safety catch to jacking equipment
The situation schematic diagram braked, (left and right described in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 7 above, is from jacking equipment
Face sees that Fig. 8, Fig. 9 are to be seen toward jacking equipment side from the outside, so left and right directions is just anti-phase toward jacking equipment side), use
Levels electromagnetic promote the explanation of safety catch its internal structure each several part composition and effect as shown in Fig. 1~7, and
[0004] described in section, [0005] section, [0006] section, [0007] section, due to being related to the matching coordinative of multiple transmission systems, so
Workmanship and installation quality are should be specifically noted that when manufacture and installation, including it is necessary ready-made including accurate described in [0008] section
The difference in height of plane on sill between stop and stop is controlled to drive the relevant work of the integral multiple of tooth bar tooth pitch (p=π m),
Ensure necessary precision, after detection is qualified, could trial operation；The electric control system of jacking equipment uses embedded system conduct
Master control system, its course of work is to cause that lifting sets when system is without electricity, including disconnecting power switch or accidental power failure etc.
For general supply disconnection, the dead electricity of electromagnetic driver main body 1, moved after control push rod 2, push rod 2 is with shifting, jacking block 4 after protection block 3 by bullet
Spring 7 elastic force effect immediately following protection block 3 and push rod 2 after move and drive pull bar 5, pulling block 9 is moved afterwards together, be fixed on pulling block 9
Movable axis 22 follow move after pulling block 9, drive lever left 10, the postbrachium of right lever 20 around left fixed shaft 11, right fixed shaft 21 outward
Side rotates, and lever left 10, the forearm of right lever 20 drive left movable rack 13, right movable rack 17 to drive tooth bar toward jacking equipment
18 center positions are moved, until moved after stopping with the at a fully engaged application position of tooth bar 18, jacking block 4 is driven, but push rod 2 with
Protection block 3 moves a small distance after continuing, and reaches and keeps discontiguous state with jacking block 4, to ensure left movable rack 13, right work
Carry-over bar 17 and the driving positive engagement of tooth bar 18, described a small distance refers to 2~5mm distances；When jacking equipment prepares to open
When dynamic, the electric control system control jacking equipment drive system of jacking equipment drives jacking equipment to move up a microspur
From the lower plane and the upper plane of right movable rack 17 and left movable rack 13 for making load-supporting part 16 have a microgap, described
The numerical value of microgap be that left movable rack 13, right movable rack 17 and jacking equipment drive the 0.2~0.6 of the sideshake of tooth bar 18
Times；Then control electromagnetic driver main body 1 it is electric, push rod 2 moves forward with protection block 3, the top pressure of protected piece 3 of jacking block 4 also before
Move and drive pull bar 5, pulling block 9 move forward together simultaneously compression spring 7, before the movable axis 22 being fixed on pulling block 9 follows pulling block 9
Move, drive lever left 10, the postbrachium of right lever 20 to be rotated toward inner side around left fixed shaft 11, right fixed shaft 21, lever left 10, right lever
20 forearm drives left movable rack 13, right movable rack 17 toward the direction movement for leaving jacking equipment driving tooth bar 18 center,
Until driving tooth bar 18 to be kept completely separate and have the free position in a bit of gap with jacking equipment, described a bit of gap is
Refer to 2~5mm gaps；For jacking equipment startup is ready；When jacking equipment needs to stop after starting, the electric-controlled of jacking equipment
System processed first disconnects jacking equipment motor power, motor deceleration, when close to stop position, such as close to level position
When, the electric control system of jacking equipment controls the dead electricity of electromagnetic driver main body 1 on schedule, is moved after control push rod 2, until left work
Carry-over bar 13, right movable rack 17 drive the application position of the positive engagement of tooth bar 18 with jacking equipment；If jacking equipment is
Occur abnormal conditions, the unexpected power down of such as jacking equipment or because jacking equipment overspeed protective device action cut-out during operation
Power supply or or because jacking equipment reaches the limit of guarded by location device action and cuts off the electricity supply etc., now jacking equipment is total
Without electricity, other electricity-loss braking devices play a role braking power supply immediately including the dead electricity band brake apparatus that motor is carried,
After the completion of energy storage device time delay, the dead electricity of electromagnetic driver main body 1, shifting, left movable teeth after the control push rod 2 of electromagnetic driver main body 1
Bar 13, right movable rack 17 drive the positive engagement of tooth bar 18 with jacking equipment, it is ensured that the safety of jacking equipment；Work as jacking equipment
Because have a power failure suddenly or other reason brake hards rest in can not with the position of any one stop flat bed when, now can be
Clasp nut control crank 23 is placed in closing position, clasp nut is combined 24 in "on" position, its box thread and transmission spiral shell
The male thread of bar 25 normally engages, manually operates worm screw control crank 26, rotates worm type of reduction gearing 27 and drive transmission
Screw rod 25 is rotated, the transmission clasp nut of drive screw 25 combination 24 is moved forward, clasp nut combination 24 drives pulling block 9 to reach
Dynamic, the movable axis 22 being fixed on pulling block 9 follows pulling block 9 to move forward, drives lever left 10, the postbrachium of right lever 20 around left fixed shaft
11st, right fixed shaft 21 is rotated toward inner side, and lever left 10, the forearm of right lever 20 drive left movable rack 13, right movable rack 17
Toward the direction movement for leaving jacking equipment and driving tooth bar 18 center, until driving tooth bar 18 to be kept completely separate and having one with jacking equipment
The free position in segment gap；Then Manual jigger mechanism is used, makes the slow steady flat bed nearby of jacking equipment；Described is manual
Unlocking mechanism is necessarily placed at the safe and reliable position that can not arbitrarily open, and has formulated rules and regulations and has strictly implemented, it is ensured that
Only possesses 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 propulsion safety catch, the levels electromagnetic of use promotes safety catch its internal structure each several part 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
Reason is described identical with [0019] section.
For the benefit of reader understand the present invention, this specification citing describe some concrete structures and data, these be all for
Explanation and it is non-limiting, the various changes done in the range of the basic thought of the claims in the present invention, replace and change is 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 jacking equipment levels electromagnetic promotes safety catch, it is characterized in that, device is matched somebody with somebody by horizontal direction
Put, installation site includes in jacking equipment car top or bottom or other rational positions, its composition, load-supporting part,
Rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, the operating mechanism of movable rack
Control device, hand-operating unlocking mechanism；Described load-supporting part includes direct load-supporting part or middle transition load-supporting part；It is described
Rail assembly include the horizontal rail that track window aperture, guide plate, load-supporting part and upper rail and lower rail are formed, described activity
Tooth bar includes right movable rack and left movable rack, and described right movable rack and left movable rack pass through track window aperture, living
The tooth form of the part being associated with the driving tooth bar of jacking equipment of carry-over bar is in and can be nibbled with the driving tooth bar of jacking equipment
The position closed or be separate, is realized and driving by moving horizontally or being maintained in some defined locations on rail assembly
The engagement or separation of tooth bar, described defined location, including with jacking equipment drive the application position that engages of tooth bar or
Tooth bar is driven to be kept completely separate and have the free position in a bit of gap with jacking equipment, described has a bit of gap, refers to
Driving tooth bar and movable rack tooth top interplanar corresponding thereto has 2~5mm gaps；The cooperation chi of movable rack and horizontal rail
Very little is dynamic cooperation, and 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
Movable rack top enter on-position after with load-supporting part and upper rail directly contact load-bearing；Described movable rack it is spacing
Mechanism includes that at least one direction of the inner face either above or below of the part being associated with guide rail of movable rack is provided with leads
To groove, gathering sill is dynamic cooperation with the mating part of guide plate, to prevent outside or inner side play of the movable rack to car；
Movable rack top is after on-position is entered with the load-supporting part directly contact of jacking equipment car or by middle transition
Load-supporting part contacts load-bearing；The operating mechanism manipulation activities tooth bar of movable rack moves horizontally or stops holding on orbit hole
In some defined locations, the operating mechanism of described movable rack is arranged in the branch in the horizontal plane direction of jacking equipment car
Hold in structure, described rack-and-pinion jacking equipment horizontal safety catch, the top of its installation site including car or
Person bottom or other rational positions；The control device of the operating mechanism of described movable rack includes electromagnetic driver, institute
The electromagnetic driver stated, is that a kind of selected working method is the long-stroke push-and-pull electromagnet for promoting, and is a kind of new electromagnetism control
Performer is made in braking, and using power supply power-up control conversion, high-power start, the working method that small-power is maintained is more same than producing
The old-fashioned electromagnet volume of big low-force is smaller, deadweight lighter, more power saving；Described electromagnetic driver includes push rod, electromagnetism
Pusher body, described electromagnetic driver main body includes electromagnetic system, the control system of electromagnetic driver, and described electromagnetism is pushed away
The control system of dynamic device is powered and is controlled by jacking equipment electric control system.
2. rack-and-pinion jacking equipment levels electromagnetic according to claim 1 promotes safety catch, it is characterized in that, institute
The operating mechanism of the movable rack stated includes, lever left, right lever, left fixed shaft, right fixed shaft, movable axis, pulling block, support,
Spring, adjusting nut group, pull bar, jacking block, protection block；The control device of the operating mechanism of described movable rack includes, push rod,
Electromagnetic driver main body, described electromagnetic driver main body include electromagnetic system, the control system of electromagnetic driver, described electricity
The control system of magnetic pusher is powered and is controlled by jacking equipment electric control system；Described jacking equipment electric control system
Electromagnetic driver control unit in also include one only by general supply control contactor or relay adjunction tentaculum group
Close and energy storage device, the described normally-closed contact bridging only combined by the contactor or relay adjunction tentaculum of general supply control
Between electromagnetic driver and energy storage device, when jacking equipment obtains electric, normally-closed contact disconnects, electromagnetic driver and energy storage device it
Between connection also disconnect, energy storage device energy storage；During jacking equipment dead electricity, the mistake that other electricity-loss braking devices are carried including motor
Electric band brake apparatus play a role braking immediately, but electromagnetic driver not dead electricity immediately, it is described only by general supply control
Contactor or the normally-closed contact dead electricity closure of relay adjunction tentaculum combination, make electromagnetic driver be connected with energy storage device, store up
Energy device is that other all electricity-loss braking devices complete what braking needed to the time delay constant design tuning of electromagnetic driver
The difference of the action total delay time of the operating mechanism of braking time and electromagnetic driver and movable rack；When jacking equipment is always electric
Source is disconnected during without electricity, and jacking equipment remains static；The actual motion direction of the operating mechanism of described movable rack is edge
Horizontal plane direction, for narration is clear, defines herein, and it is preceding to drive tooth bar direction, after electromagnetic driver main direction is, to driving
The movement of tooth bar direction is reach, is moved after being to the movement of electromagnetic driver main direction；The operating mechanism course of work of movable rack
For, when electromagnetic driver main body dead electricity, push rod with protection block after move, jacking block by spring elastic force effect immediately following protection block and
Move and drive pull bar, pulling block to move afterwards together after push rod, the movable axis being fixed on pulling block is moved after following pulling block, drives left thick stick
Bar, right lever underarm are rotated around left fixed shaft, right fixed shaft toward outside, lever left, the upper arm of right lever drive left movable rack,
Right movable rack drives the movement of tooth bar center position toward jacking equipment, until the application position at a fully engaged with tooth bar is driven, top
Block is moved after stopping, but push rod moves a small distance after continuing with protection block, reaches and keeps discontiguous state with jacking block, with
Ensure left movable rack, right movable rack and drive tooth bar positive engagement, described a small distance refers to 2~5mm distances；
When electromagnetic driver main body obtains electric, control pushrod advances, push rod with protection block reach, protected piece of jacking block top pressure also before
Move and drive pull bar, pulling block to move forward together while compression spring, the movable axis being fixed on pulling block follows pulling block to move forward, drive
Lever left, right lever underarm are rotated around left fixed shaft, right fixed shaft toward inner side, and lever left, the upper arm of right lever drive left activity
Tooth bar, right movable rack drive the direction movement at tooth bar center toward jacking equipment is left, until driving tooth bar complete with jacking equipment
Free position that is fully separating and having a bit of gap, described a bit of gap refers to 2~5mm gaps；Adjusting nut group is used for
The pressure of spring is adjusted, support supports the front position of the front end face of fixed spring；If there is abnormal conditions, such as lifting sets
Reached the limit of for unexpected power down or because of jacking equipment overspeed protective device action power dump or because of jacking equipment
Guarded by location device action is cut off the electricity supply etc., and now immediately without electricity, other electricity-loss braking devices include jacking equipment general supply
The dead electricity band brake apparatus that motor is carried play a role braking, after the completion of energy storage device time delay, electromagnetic driver main body immediately
Dead electricity, push rod is with shifting, left movable rack, right movable rack after shifting, jacking block after protection block and drives tooth bar positive engagement, it is ensured that
The safety of jacking equipment.
3. rack-and-pinion jacking equipment levels electromagnetic according to claim 1 promotes safety catch, it is 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 decelerator, wherein clasp nut combine with pulling block be fixedly connected, the worm gear of drive screw and worm type of reduction gearing
To be fixedly connected, usually, clasp nut control crank is placed in and opens a sluice gate position, clasp nut combination in opening a sluice gate state, its female spiral shell
Line has no effect without engagement, drive screw with the male thread of drive screw to the motion that clasp nut is combined, so as to solve manually
Latch mechanism to rack-and-pinion jacking equipment levels electromagnetic promote safety catch motion have no effect, when jacking equipment because
For have a power failure suddenly or other reason brake hards rest in can not with the position of any one stop flat bed when, now can be opening
Nut control crank is closed to be placed in closing position, clasp nut is combined the public affairs in "on" position, its box thread and drive screw
Screw thread normally engages, manually operates worm screw control crank, rotates worm type of reduction gearing and drive drive screw to rotate, be driven
The combination of screw drive clasp nut is moved forward, clasp nut combination drives pulling block to move forward, and is fixed on the activity on pulling block
Axle follows pulling block to move forward, drives lever left, right lever postbrachium to be rotated toward inner side around left fixed shaft, right fixed shaft, lever left, You Gang
The forearm of bar drives left movable rack, right movable rack toward the direction movement for leaving jacking equipment driving tooth bar center, until with
Jacking equipment drives tooth bar to be kept completely separate and have the free position in a bit of gap；Then Manual jigger mechanism is used, makes lifting
Equipment flat bed nearby；Described hand-operating unlocking mechanism is necessarily placed at the safe and reliable position that can not arbitrarily open, and has formulated rule
Chapter system and strictly implement, it is ensured that only possess qualification, authorized personnel could open and use.
4. rack-and-pinion jacking equipment levels electromagnetic according to claim 1 promotes safety catch, it is characterized in that, institute
The control system of the electromagnetic driver stated is powered and is controlled by jacking equipment electric control system, the control of its electric control system
Step includes, when jacking equipment prepares to start, the electric control system control jacking equipment drive system of jacking equipment is driven
Dynamic jacking equipment moves up a distance element, and the lower plane and right movable rack and the upper of left movable rack for making load-supporting part are put down
There is a microgap in face, and the numerical value of described microgap is that left movable rack, right movable rack and jacking equipment drive rack bar side
0.2~0.6 times of gap；Then control electromagnetic driver main body obtains electric, and the left movable rack of drive, right movable rack are past to leave lifting
The direction movement at device drives tooth bar center, until driving tooth bar to be kept completely separate and have the freedom in a bit of gap with jacking equipment
Position, is that jacking equipment startup is ready.
5. rack-and-pinion jacking equipment levels electromagnetic according to claim 1 promotes safety catch, it is characterized in that, match somebody with somebody
Being equipped with rack-and-pinion jacking equipment levels electromagnetic of the invention promotes the installation method of the jacking equipment of safety catch to include,
When carrying out and install relevant early stage civil engineering, it is necessary to carry out accurate measurement by the difference in height to stop and stop, accordingly
Each stop sill is constructed and the difference in height of plane on sill between stop and stop is accurately controlled to drive tooth bar tooth pitch
Integral multiple, when jacking equipment is installed, correct regulation jacking equipment is worked in coordination with driving tooth bar so that jacking equipment sedan-chair
Leveling accuracy is just stopped from ground floor and in median in railway carriage or compartment.
6. a kind of elevator, it is characterized in that, install and use the gear teeth described in any claim in claim 1- claims 5
Bar jacking equipment levels electromagnetic promotes safety catch.
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| CN201611221130.3A CN106744138B (en) | 2016-12-27 | 2016-12-27 | Rack-and-pinion lifting device levels electromagnetic pushes safety catch |
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| CN201611221130.3A CN106744138B (en) | 2016-12-27 | 2016-12-27 | Rack-and-pinion lifting device levels electromagnetic pushes safety catch |
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| CN106744138B CN106744138B (en) | 2019-03-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665405A (en) * | 2018-12-10 | 2019-04-23 | 深圳资深投资管理有限公司 | Highly sensitive entirely passive type stall proof elevator |
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| US20080271961A1 (en) * | 2006-05-19 | 2008-11-06 | 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 |
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| CN109665405A (en) * | 2018-12-10 | 2019-04-23 | 深圳资深投资管理有限公司 | Highly sensitive entirely passive type stall proof elevator |
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| CN106744138B (en) | 2019-03-12 |
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