CN107032252B - Pinion and-rack lifting device levels electromagnetic pulls safety catch - Google Patents
Pinion and-rack lifting device levels electromagnetic pulls safety catch Download PDFInfo
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- CN107032252B CN107032252B CN201611221564.3A CN201611221564A CN107032252B CN 107032252 B CN107032252 B CN 107032252B CN 201611221564 A CN201611221564 A CN 201611221564A CN 107032252 B CN107032252 B CN 107032252B
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- lifting device
- rack
- movable rack
- arm lever
- drive
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Classifications
-
- 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
-
- 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
Abstract
A kind of pinion and-rack lifting device levels electromagnetic pulling safety catch, including load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, the control device of the operating mechanism of movable rack, hand-operating unlocking mechanism；The operating mechanism manipulation activities rack gear for directly contacting the movable rack for perhaps contacting the configuration of load-bearing horizontal direction by middle transition load-supporting part at the top of movable rack with the main load-carrying members of lifting device carriage after entering on-position, which is moved horizontally or stopped on orbit hole, is maintained at the application position including engaging with lifting device drive rack or the free position that is completely disengaged and having one section of gap with lifting device drive rack；Alleviator self weight is conducive to using electromagnetism puller；It plays and mitigates self weight, 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 lifting device safety catch fields, more particularly to a kind of pinion and-rack lifting device water
Ordinary telegram magnetic pulls safety catch.
Background technique
The power device of rack-and-pinion lifting device is mounted in equipment carriage, and it is a need that how alleviator, which is self-possessed,
Want the task of ongoing effort；The existing safety catch of rack-and-pinion lifting device is by various methods, to make to drive gear
It stops operating to realize；But it if problem, such as gear teeth damage occur for driving gear, even if gear does not rotate, can not protect
The reliable braking of card；To ensure safety, pinion and-rack lifting device, which must configure, reliably to be coped with including driving gear hair
The safety catch of raw problem and similar safety problem.
Summary of the invention
The purpose of the present invention, be to provide a kind of occupancy useful space is smaller, cope with including driving gear occur problem
And the safety catch of similar safety problem.
Fig. 1 is the structural schematic diagram that a kind of pinion and-rack lifting device levels electromagnetic pulls safety catch, diagram
Direction is from 60 top of rack-and-pinion lifting device carriage, sheds top car outside plate finding viewed from above, so for rising
Drop device drives rack gear 18 can only see its top, and right movable rack 17 has carried out broken section processing, can see clearly in it
The fit structure (being connect with an arm of right double-arm lever 35) in portion and right double-arm lever 35, right movable rack combination and left movable teeth
Item combination be using rack gear among the vertical median plane perpendicular to rack gear projection plane that indicates of center chain-dotted line as symmetrical plane
Mirror symmetric figure, bracket 7 is half section, and the state that movable rack is engaged with lifting device drive rack, institute is shown in Fig. 1
The levels electromagnetic stated pulls safety catch to be in application position state；Fig. 2 is pinion and-rack lifting device shown in FIG. 1
Levels electromagnetic pulls schematic diagram of the releasing braking in free state of safety catch, the projection side of projecting direction and Fig. 1
To identical；Fig. 3 is the A-A partial sectional view of Fig. 1, direction be seen in the A-A section eyes front (in terms of rack gear direction), drawing from
The front of rail assembly, movable rack, the vertical profile with the left double-arm lever 34 of the operating mechanism of movable rack, right double-arm lever 35
Face direction shows the connection relationship between them, and the state of display is that movable rack with lifting device drive rack engages braking
State；Fig. 4 is that the movable rack that view direction same as shown in Figure 3 is shown and lifting device drive rack are in discrete state
Schematic diagram；Fig. 5 is the B-B partial sectional view of Fig. 1, and direction is finding (in terms of toward centerline direction) of turning right from B-B section, figure
Face is from the vertical section direction of rail assembly, movable rack, it is shown that the left double-arm lever of the operating mechanism of they and movable rack
34 connection relationship；A kind of pinion and-rack lifting device levels electromagnetic pulling safety catch (hereinafter referred to as levels electromagnetic
Pull safety catch), characterized in that device by horizontal direction configuration, installation site in lifting device car top or
Bottom or other reasonable positions, composition includes the limit of load-supporting part, rail assembly, movable rack, movable rack
Mechanism, the operating mechanism of movable rack, the control device of the operating mechanism of movable rack, hand-operating unlocking mechanism；The load-bearing
Component includes direct load-supporting part or middle transition load-supporting part；The rail assembly includes track window aperture 12, guiding
The horizontal rail that plate 29, load-supporting part and upper rail 16 and lower rail 19 are formed, the movable rack includes right 17 He of movable rack
Left movable rack 13, the right movable rack 17 and left movable rack 13 pass through track window aperture 12, movable rack with liter
The tooth form for the part that the drive rack 18 of drop equipment is associated, which is in, can engage or divide with the drive rack 18 of lifting device
From position, realize on the position by the way that certain determinations are moved horizontally or be maintained on rail assembly and drive rack 18
Engagement or separation, the position of the determination, including the application position that is engaged with lifting device drive rack or with lifting
Device drives rack gear is kept completely separate and has the free position in one section of gap, and described has one section of gap, refer to drive rack and
Movable rack tooth top interplanar corresponding thereto has the >=gap 2mm；Movable rack and the fit system of horizontal rail are dynamic cooperation,
Contact surface is smooth low coefficient of friction surfaces, to be conducive to the movement of movable rack, right movable rack 17 and left movable rack
13 tops directly contact load-bearing with load-supporting part and upper rail 16 after entering on-position；The position-limit mechanism of the movable rack
Including 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 guiding
The mating part of slot, (referring to Fig. 5), guide groove and guide plate 29 is dynamic cooperation, to prevent movable rack to the outside of carriage 60
Or inside play；Movable rack top (is in Fig. 1, Fig. 3 with the load-supporting part of lifting device carriage after entering on-position
Load-supporting part and upper rail 16) it directly contacts or load-bearing is contacted by middle transition load-supporting part；The operating mechanism of movable rack
Manipulation activities rack gear is moved horizontally or is stopped on orbit hole on the position for being maintained at certain determinations, the movable rack
Operating mechanism is arranged in the support structure 28 in the horizontal plane direction of lifting device carriage, the pinion and-rack lifting device
Levels electromagnetic pulls safety catch, and installation site includes the top or bottom or other reasonable positions of carriage；
The control device of the operating mechanism of the movable rack includes electromagnetism puller, the electromagnetism puller, is a kind of selected
Working method is the long-stroke push-and-pull electromagnet pulled, is a kind of novel Electromagnetic Control actuator part, using power supply plus
Automatically controlled conversion, high-power start, the working method that small-power maintains, than the old-fashioned electromagnet volume for generating onesize active force
Smaller, lighter, more power saving of being self-possessed；The electromagnetism puller includes electromagnetic draw bar 2, electromagnetism puller main body 1, the electromagnetism
Puller main body 1 includes the electromagnetic system of electromagnetism puller, control system, and the control system of the electromagnetism puller is by going up and down
Equipment electrical control system power supply and control.
The operating mechanism of the movable rack, including, transmission pivot pin 4, pulling block 5, the kidney slot 3 being arranged on pulling block 5,
Pull rod 6, bracket 7, spring 8, adjusting nut group 9, jacking block 10, movable axis 21, left single-arm lever 31, left movable mandrel 32 and a left side are double
The hinge component of arm bar 34, the hinge component of right single-arm lever 37, right movable mandrel 36 and right double-arm lever 35, fixing axle
33；The operating mechanism course of work of movable rack is controlled by the control device of the operating mechanism of movable rack, the movable teeth
The control device of the operating mechanism of item includes that electromagnetic draw bar 2, electromagnetism puller main body 1, the electromagnetism puller main body include
The electromagnetic system of electromagnetism puller, control system, the control system of the electromagnetism puller is by lifting device electrical control system
System power supply and control；Further include in the control unit of the electromagnetism puller of the lifting device electric control system one only by
The contactor of general supply control or the combination of relay adjunction tentaculum and energy storage device, the contact only controlled by general supply
Device or the normally-closed contact of relay adjunction tentaculum combination are connected across between electromagnetism puller and energy storage device, and lifting device obtains electric
When, normally-closed contact disconnects, and the connection between electromagnetism puller and energy storage device also disconnects, energy storage device energy storage；Lifting device loses
When electric, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays a role braking immediately, but electromagnetism drawing
Dynamic device not power loss immediately, the normally-closed contact that the contactor only control by general supply or relay adjunction tentaculum combine
Power loss closure, connect electromagnetism puller with energy storage device, delay time (discharge time) of the energy storage device to electromagnetism puller
Constant design tuning is the braking time and electromagnetism puller and movable teeth that other electricity-loss braking devices individually complete that braking needs
The difference of the movement total delay time of the operating mechanism of item；For example, other electricity-loss braking devices of certain lifting device are individually complete
At the braking time needed is braked as 3.5S, the movement total delay time of the operating mechanism of electromagnetism puller and movable rack is
0.2S, then energy storage device is (3.5S-0.2S=) 3.3S, energy storage device to the delay time constant design tuning of electromagnetism puller
After the completion of delay, electromagnetism puller power loss；When lifting device general supply is disconnected without electricity (including stored up after original state or power loss
Can state after the release of device energy), lifting device remains static；The practical fortune of the operating mechanism of the movable rack
Dynamic direction is that direction defines herein along the horizontal plane to describe clearly, before 18 direction of drive rack is, 1 side of electromagnetism puller main body
Xiang Weihou, it is mobile to move forward to 18 direction of drive rack, it is mobile to move back to 1 direction of electromagnetism puller main body, (if Fig. 1, figure
2 it is vertical place, then Forward is exactly the uplink relative to drawing, and moving back is exactly downlink relative to drawing)；The manipulation of movable rack
The mechanism course of work is, when electromagnetism puller 1 power loss of main body, disappears to the electromagnet pull of electromagnetic draw bar 2, electromagnetic draw bar 2 with
The transmission pivot pin 4 being fixed thereon is transferred to the pulling force of jacking block 10 also while being disappeared by kidney slot 3, pulling block 5, pull rod 6, jacking block
10 are moved forward by the elastic force effect of spring 8 and pull rod 6, pulling block 5 are driven to move forward together, be fixed on movable axis 21 on jacking block 10 with
With the Forward of jacking block 10, the open end for the left single-arm lever 31 being driven around on movable axis 21 and the open end of right single-arm lever 37
Forward drives left single-arm lever 31, the hinge component of left movable mandrel 32 and left double-arm lever 34 and right single-arm lever 37, the right side
The hinge component of movable mandrel 36 and right double-arm lever 35 rotates around fixing axle 33, left double-arm lever 34, right double-arm lever 35
Rear end is opened toward the left and right sides, and left double-arm lever front end drives left movable rack 13, right double-arm lever front end to drive right movable teeth
Item 17 is mobile toward 18 center position of lifting device drive rack, until the retarder location at a fully engaged with lifting device drive rack 18
It sets, lifting device is braked；At the same time, electromagnetic draw bar 2 resets forward under the action of electromagnetism puller internal reset mechanism,
Reaching, which makes to be driven pivot pin 4 and 3 front and back arc surface of kidney slot, the position in gap；When electromagnetism puller main body 1 must be electric, to electricity
The electromagnet pull of magnetic pull rod 2 generates, and electromagnetic draw bar 2 pulls pulling block 5 by kidney slot 3 with the transmission pivot pin 4 being fixed thereon, draws
Bar 6, jacking block 10 move back, while compressed spring 8, and the movable axis 21 being fixed on jacking block 10 follows jacking block 10 to move back while pulling
The open end for the left single-arm lever 31 being centered around on movable axis 21 and the open end of right single-arm lever 37 move back, while pulling left double
Arm bar 34, the rear end of right double-arm lever 35 are mobile toward centre from the left and right sides, and left double-arm lever front end drives left movable rack
13, right double-arm lever front end drives right movable rack 17 mobile toward the direction for leaving 18 center of lifting device drive rack, until
The free position in a bit of gap is kept completely separate and had with lifting device drive rack 18；The a bit of gap, refer to 2~
The gap 5mm；Adjusting nut group 9 is used for the pressure of adjustment spring 8, the rearmost position of the rear end face of 7 fixed spring 9 of bracket；If
Occur abnormal conditions, such as the unexpected power down of lifting device or because lifting device overspeed protective device action power dump or
Person because lifting device reaches the limit of guarded by location device action and cuts off the power etc., at this time lifting device general supply immediately without
Electricity, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays a role braking immediately, are prolonged in energy storage device
When after the completion of, electromagnetism puller main body power loss disappears to the electromagnet pull of electromagnetic draw bar 2, the Forward of jacking block 10, 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 work
Carry-over bar 13, right movable rack 17 may not have at a fully engaged with drive rack 18 at the beginning, and worst situation is such as Fig. 6 institute
When the braking shown may there is a situation where the highest points of rack gear and highest point contact, temporarily become friction under the effect of elasticity at this time
Braking, if the braking moment of lifting device whole brake apparatus adds up and is enough to realize braking at this time, braking task completion；Such as
The braking moment of fruit lifting device whole brake apparatus at this time, which adds up, is all not enough to prevent lifting device downslide, (because there is system
Kinetic moment effect, 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 work
Carry-over bar 13, right movable rack 17 will elastic force promotion under squeeze into drive rack 18 tooth socket in (referring to Fig. 7), then as
Continue to glide, continue to squeeze into, until left movable rack 13, right movable rack 17 and 18 positive engagement of drive rack, implement braking；
Fig. 6 is the C-C partial sectional view direction of Fig. 1, and the state of highest point and highest point contact that rack gear may occur when braking is shown
Be intended to, projecting direction be from lifting device toward the direction of drive rack 18 from；Fig. 7 is the same view direction of Fig. 6, when left work
The schematic diagram in tooth socket that carry-over bar, right movable rack squeeze into lifting device drive rack under elastic force promotion.
The hand-operating unlocking mechanism, including, clasp nut control crank 23, clasp nut combination 24, drive screw 25,
Worm screw control crank 26, worm type of reduction gearing 27, wherein clasp nut combination 24 with jacking block 10 be fixedly connected, drive screw
25 with the worm gear of worm type of reduction gearing 27 be fixedly connected, usually, clasp nut control crank 23 be placed in opens a sluice gate position, folding
Nut combination 24 in state of opening a sluice gate, its box thread and the male thread of drive screw 25 without engage, 25 pairs of folding spiral shells of drive screw
The movement of mother's combination 24 has no effect, so that hand-operating unlocking mechanism pulls safety arrestment dress to rack-and-pinion lifting device electromagnetism
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, the transmission clasp nut of drive screw 25 combination 24 moves backward,
24 drive jacking block 10 of clasp nut combination moves backward, and jacking block 10 moves back, while compressed spring 8, the work being fixed on jacking block 10
Moving axis 21 follow jacking block 10 to move back and meanwhile pull the left single-arm lever 31 being centered around on movable axis 21 open end and right single armed thick stick
The open end of bar 37 moves back, while pulling the rear end of left double-arm lever 34, right double-arm lever 35 mobile toward centre from the left and right sides,
Left double-arm lever front end drives left movable rack 13, right double-arm lever front end that right movable rack 17 is driven to drive toward lifting device is left
The direction at 18 center of carry-over bar is mobile, until the free position in a bit of gap is kept completely separate and had with lifting device drive rack 18
It sets；Then Manual jigger mechanism is used, the nearest leveling of lifting device is made；The hand-operating unlocking mechanism is necessarily placed at safety can
By the position that cannot arbitrarily open, formulates rules and regulations and strictly implemented, it is ensured that only have qualification, it is authorized
Personnel could open and use.
The control system of the electromagnetism puller is powered and is controlled by lifting device electric control system, electrical control
It include that, when lifting device prepares to start, the electric control system of lifting device controls lifting device in the rate-determining steps of system
Drive system driving lifting device moves up a distance element, makes lower plane and right movable rack 17 and the left side of load-supporting part 16
The upper plane of movable rack 13 has a microgap, and the numerical value of the microgap is left movable rack 13, right movable rack 17
With 0.2~0.6 times of 18 sideshake of lifting device drive rack；Then control electromagnetism puller main body 1 obtains electric, drives left movable teeth
Item 13, right movable rack 17 are mobile toward the direction for leaving 18 center of lifting device drive rack, until with lifting device sliding tooth
Item 18 is kept completely separate and has the free position in a bit of gap, is ready for lifting device starting.
The lifting device of safety catch is pulled respectively may be used using pinion and-rack lifting device levels electromagnetic of the invention
The distance between the braking anchor point of energy is the integral multiple of its drive rack tooth pitch (p=π m), therefore is configured with peace of the invention
The installation method of the lifting device of full application of brake device includes, when carrying out and install related civil construction early period, it is necessary to by right
The difference in height of stop and stop carries out precise measurement, is constructed accordingly to each stop sill and accurately controls stop and stop
Between on sill the difference in height of plane be that the integral multiple of drive rack tooth pitch (p=π m) allows according to the regulation of GB/T10058
Error is ± 10mm (construction internally controlling requirement should be less than this error amount)；In lifting device installation, lifting device is correctly adjusted
With working in coordination for drive rack so that lifting device carriage just stops leveling accuracy from first layer and in median, then with
Stop leveling afterwards can meet the requirements, or even when other individual leveling element failures, also can guarantee stop
Leveling accuracy；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
Electromagnetism puller is conducive to mitigate self weight；Horizontal direction configuration can have been saved in carriage with top set or bottom setting installation
The useful space；Rack gear engagement leveling keeps precision to can achieve the requirement for being much better than ± 20mm as defined in GB/T10058；Therefore,
It can play and mitigate the beneficial effect that the self weight saving useful space significantly improves langding accuracy and safeguard protection braking quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that a kind of pinion and-rack lifting device levels electromagnetic pulls safety catch.
The pinion and-rack lifting device levels electromagnetic that Fig. 2 is Fig. 1 pulls safety catch to be in showing for free state
It is intended to.
Fig. 3 is the A-A partial sectional view of Fig. 1.
Fig. 4 is that the movable rack that view direction same as shown in Figure 3 is shown is engaged with the releasing of lifting device drive rack
Schematic diagram in free state.
Fig. 5 is the B-B partial sectional view of Fig. 1.
Fig. 6 is the C-C partial sectional view direction of Fig. 1, and highest point and the highest point contact of rack gear may occur when braking
Status diagram.
Fig. 7 is the same view direction of Fig. 6, when left movable rack, right movable rack are squeezed into lifting under elastic force promotion and set
Schematic diagram in the tooth socket of standby drive rack.
Fig. 8 is the schematic diagram of embodiment 1.
Fig. 9 is the case where safety catch of embodiment 1 brakes lifting device schematic diagram.
Specific embodiment
Embodiment 1, Fig. 8 be embodiment 1 schematic diagram, drawing show be lifting device side appearance, the level
Electromagnetism pulls safety catch to be mounted on the top of pinion and-rack lifting device, is temporarily in free position, lifting device
Situation in preparing operation or being currently running, Fig. 9 are that the levels electromagnetic of embodiment 1 pulls safety catch to lifting device
The case where being braked schematic diagram, (left and right described in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 7 of front is in lifting device
Face sees toward lifting device side, and Fig. 8, Fig. 9 are to see from the outside toward lifting device side, so left and right directions just reverse phase), it uses
Levels electromagnetic pull 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, when system is without electricity, 1 power loss of electromagnetism puller main body, to the electromagnet pull of electromagnetic draw bar 2
It disappears, electromagnetic draw bar 2 passes through the drawing that kidney slot 3, pulling block 5, pull rod 6 are transferred to jacking block 10 with the transmission pivot pin 4 being fixed thereon
Power also disappears simultaneously, and jacking block 10 is moved forward by the elastic force of spring 8 and pull rod 6, pulling block 5 is driven to move forward together, is fixed on jacking block 10
On movable axis 21 follow the Forward of jacking block 10, the open end of left single-arm lever 31 being driven around on movable axis 21 and right single armed
The open end of lever 37 moves forward, and drives the hinge component of left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34, and right
The hinge component of single-arm lever 37, right movable mandrel 36 and right double-arm lever 35, rotates around fixing axle 33, left double-arm lever 34,
The rear end of right double-arm lever 35 is opened toward the left and right sides, before left double-arm lever front end drives left movable rack 13, right double-arm lever
It is mobile toward 18 center position of lifting device drive rack that end drives right movable rack 17, until complete with lifting device drive rack 18
The application position engaged entirely brakes lifting device；With at the same time, electromagnetic draw bar 2 is in electromagnetism puller internal reset mechanism
Under the action of reset forward, reaching makes to be driven the position that pivot pin 4 and 3 front and back arc surface of kidney slot have gap；Work as lifting device
When preparing starting, the drive system driving lifting device of the electric control system control lifting device of lifting device moves up one
A distance element makes the upper plane of load-supporting part and the lower plane of upper rail 16 and right movable rack 17 and left movable rack 13 have one
Microgap, the numerical value of the microgap are left movable rack 13, right movable rack 17 and 18 sideshake of lifting device drive rack
0.2~0.6 times；Then the electric control system control electromagnetism puller main body 1 of lifting device obtains electric, to electromagnetic draw bar 2
Electromagnet pull generates, and electromagnetic draw bar 2 pulls pulling block 5, pull rod 6, jacking block by kidney slot 3 with the transmission pivot pin 4 being fixed thereon
10 move back, while compressed spring 8, and the movable axis 21 being fixed on jacking block 10 follows jacking block 10 to move back while pulling and is centered around work
The open end of left single-arm lever 31 on moving axis 21 and the open end of right single-arm lever 37 move back, while pulling left double-arm lever
34, the rear end of right double-arm lever 35 is mobile toward centre from the left and right sides, and left double-arm lever front end drives left movable rack 13, right pair
Arm bar front end drives right movable rack 17 mobile toward the direction for leaving 18 center of lifting device drive rack, until setting with lifting
Standby drive rack 18 is kept completely separate and has the free position in a bit of gap；The a bit of gap, refers to the gap 2~5mm；
Adjusting nut group 9 is used for the pressure of adjustment spring 8, the extreme lower position of the rear end face of 7 fixed spring 9 of bracket；If there is exception
Situation, such as 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 etc., and lifting device general supply is immediately without electricity, other mistakes at this time
Electric braking device includes that the included power loss band brake apparatus of motor plays a role braking immediately, after the completion of energy storage device is delayed,
1 power loss of electromagnetism puller main body disappears to the electromagnet pull of electromagnetic draw bar 2, the Forward of jacking block 10, left movable rack 13, right activity
Rack gear 17 and 18 positive engagement of drive rack, ensure that the safety of lifting device；When lifting device because suddenly have a power failure or its
Its reason emergency braking rests in when cannot be with the position of any one stop leveling, at this time can be clasp nut control crank 23
It is placed in closing position, nibbles clasp nut combination 24 normally in the male thread of "on" position, its box thread and drive screw 25
Conjunction, manual operation worm screw control crank 26 rotate worm type of reduction gearing 27 and drive the rotation of drive screw 25, drive screw
25 transmission clasp nut combinations 24 move backward, 24 drive jacking block 10 of clasp nut combination moves backward, and are fixed on jacking block 10
Movable axis 21 follow jacking block 10 to move back and meanwhile pull the left single-arm lever 31 being centered around on movable axis 21 open end and right list
The open end of arm bar 37 moves back, while pulling the rear end of left double-arm lever 34, right double-arm lever 35 from the left and right sides toward centre
Mobile, left double-arm lever front end drives left movable rack 13, right double-arm lever front end to drive right movable rack 17 is past to leave lifting
The direction at 18 center of device drives rack gear is mobile, until being kept completely separate with lifting device drive rack 18 and having a bit of gap
Free position；Then Manual jigger mechanism is used, the nearest leveling of lifting device is made；The hand-operating unlocking mechanism is necessarily placed at
The position that securely and reliably cannot arbitrarily open has been formulated rules and regulations and has strictly been implemented, it is ensured that only had qualification, obtain
The personnel of authorization 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
Formula electromagnetism pulls the elevator of safety catch, and the levels electromagnetic of use pulls its internal structure each section group of safety catch
At and effect illustrate that as 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 pinion and-rack lifting device levels electromagnetic pulls safety catch, characterized in that device presses horizontal direction
Configuration, for installation site in lifting device car top or bottom or other reasonable positions, composition includes load receiving part
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；Institute
The rail assembly stated includes the horizontal rail that track window aperture, guide plate, load-supporting part and upper rail and lower rail are formed, the work
Carry-over bar includes right movable rack and left movable rack, and the right movable rack and left movable rack pass through track window aperture,
The tooth form for the part of movable rack being associated with the drive rack of lifting device is in can be with the drive rack of lifting device
It engages 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 carry-over bar, the position of the determination, including the application position that is engaged with lifting device drive rack or
Person and lifting device drive rack are kept completely separate and have the free position in one section of gap, and described has one section of gap, refers to drive
Carry-over bar and movable rack tooth top interplanar corresponding thereto have the >=gap 2mm；The fit system of movable rack and horizontal rail
For dynamic cooperation, contact surface is smooth low coefficient of friction surfaces, to be conducive to the movement of movable rack, right movable rack and left work
Load-bearing is directly contacted with load-supporting part and upper rail after entering on-position at the top of carry-over bar；The position restrainer of the movable rack
Structure 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 guiding
The mating part of slot, guide groove and guide plate is dynamic cooperation, to prevent outside or inside play of the movable rack to carriage；It is living
It directly contacts after entering on-position with the load-supporting part of lifting device carriage at the top of carry-over bar or is held by middle transition
Heavy parts contact load-bearing；The operating mechanism manipulation activities rack gear of movable rack, which is moved horizontally or stopped on orbit hole, to be maintained at
On the position of certain determinations, the operating mechanism of the movable rack is arranged in the support in the horizontal plane direction of lifting device carriage
In structure, the rack-and-pinion lifting device horizontal safety catch, installation site include carriage top or
Bottom or other reasonable positions；The control device of the operating mechanism of the movable rack includes electromagnetism puller, described
Electromagnetism puller, for a kind of selected working method be pull long-stroke push-and-pull electromagnet, using power supply be powered on control conversion, greatly
Energetic start up, the working method that small-power maintains；The electromagnetism puller includes electromagnetic draw bar, electromagnetism puller main body, institute
The electromagnetism puller main body stated includes the electromagnetic system of electromagnetism puller, control system, the control system of the electromagnetism puller
System is powered and is controlled by lifting device electric control system.
2. pinion and-rack lifting device levels electromagnetic according to claim 1 pulls safety catch, characterized in that
The operating mechanism of the movable rack, including, it is driven pivot pin, pulling block, the kidney slot being arranged on pulling block, pull rod, bracket, bullet
Spring, adjusting nut group, jacking block, movable axis, the hinge component of left single-arm lever, left movable mandrel and left double-arm lever, right single armed
The hinge component of lever, right movable mandrel and right double-arm lever, fixing axle；The operating mechanism course of work of movable rack is by activity
The control device of the operating mechanism of rack gear controls；The control unit of the electromagnetism puller of the lifting device electric control system
In further include the only contactor that control by general supply or the combination of relay adjunction tentaculum and an energy storage device, described by
The contactor of general supply control or the normally-closed contact of relay adjunction tentaculum combination are connected across electromagnetism puller and energy storage device
Between, when lifting device obtains electric, normally-closed contact is disconnected, and the connection between electromagnetism puller and energy storage device also disconnects, energy storage dress
Set energy storage；When lifting device power loss, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays work immediately
With braking, but electromagnetism puller not power loss immediately, the contactor only controlled by general supply or relay adjunction
The normally-closed contact power loss closure of tentaculum combination, connect electromagnetism puller with energy storage device, energy storage device is to electromagnetism puller
Delay time constant design tuning is the braking time and electromagnetism puller that other electricity-loss braking devices individually complete that braking needs
And the difference of the movement total delay time of the operating mechanism of movable rack；After the completion of energy storage device delay, electromagnetism puller power loss；
When lifting device general supply is disconnected without electricity, lifting device remains static；The reality of the operating mechanism of the movable rack
The border direction of motion is direction along the horizontal plane, before drive rack direction is, after electromagnetism puller main direction is, to drive rack side
To mobile to move forward, mobile to electromagnetism puller main direction is to move back；The operating mechanism course of work of movable rack is to work as electricity
It when magnetic puller main body power loss, disappears to the electromagnet pull of electromagnetic draw bar, electromagnetic draw bar and the transmission pivot pin being fixed thereon are logical
It crosses kidney slot, pulling block, pull rod to be transferred to the pulling force of jacking block also while disappearing, jacking block is moved forward and driven by the elastic force effect of spring
Pull rod, pulling block move forward together, and the movable axis being fixed on jacking block follows jacking block Forward, the left single armed being driven around on movable axis
The open end of lever and the Forward of the open end of right single-arm lever, drive left single-arm lever, left movable mandrel and left double-arm lever
The hinge component of hinge component and right single-arm lever, right movable mandrel and right double-arm lever, rotates, left both arms thick stick around fixing axle
Bar, right double-arm lever rear end opened toward the left and right sides, left double-arm lever upper end drives left movable rack, right double-arm lever front end
It is mobile toward lifting device drive rack center position to drive right movable rack, until at a fully engaged with lifting device drive rack
Application position brakes lifting device；At the same time, electromagnetic draw bar under the action of electromagnetism puller internal reset mechanism forward
It resets, reaches the position that arc surface before and after making to be driven pivot pin and kidney slot has gap；It is right when electromagnetism puller main body obtains electric
The electromagnet pull of electromagnetic draw bar generates, electromagnetic draw bar and the transmission pivot pin that is fixed thereon by kidney slot pulling pulling block, pull rod,
Jacking block moves back, while compressed spring, and the movable axis being fixed on jacking block follows jacking block to move back while pulling and is centered around on movable axis
The open end of left single-arm lever and the open end of right single-arm lever move back, while pulling left double-arm lever, right double-arm lever
Rear end is mobile toward centre from the left and right sides, and left double-arm lever front end drives left movable rack, right double-arm lever front end to drive right work
Carry-over bar is mobile toward the direction for leaving lifting device drive rack center, until being kept completely separate and having with lifting device drive rack
The free position in a bit of gap；The a bit of gap, refers to the gap 2~5mm；Adjusting nut group is for adjustment spring
Pressure, the rearmost position of the rear end face of bracket fixed spring；If there is abnormal conditions, including the unexpected power down of lifting device or
Person is because of lifting device overspeed protective device action power dump or because lifting device reaches the limit of guarded by location device and moves
It cuts off the power, for lifting device general supply immediately without electricity, other electricity-loss braking devices include that the included power loss of motor is embraced at this time
Brake gear plays a role braking immediately, after the completion of energy storage device delay, electromagnetism puller main body power loss, to the electricity of electromagnetic draw bar
Magnetic pull disappearance, jacking block Forward, left movable rack, right movable rack and drive rack positive engagement, ensure that lifting device
Safety.
3. pinion and-rack lifting device levels electromagnetic according to claim 1 pulls safety catch, characterized in that
The hand-operating unlocking mechanism, including, clasp nut control crank, clasp nut combination, drive screw, worm screw control crank,
Worm type of reduction gearing, wherein clasp nut combination with pulling block be fixedly connected, the snail of drive screw and worm type of reduction gearing
Wheel is is fixedly connected with, and usual, clasp nut control crank is placed in and opens a sluice gate position, clasp nut combination is in state of opening a sluice gate, it is female
Screw thread has no effect to the movement that clasp nut combines without engagement, drive screw with the male thread of drive screw, thus manually
Unlocking mechanism pulls the movement of safety catch to have no effect pinion and-rack lifting device levels electromagnetic, when lifting is set
It is standby because having a power failure suddenly or other reason emergency brakings rest in when cannot be with the position of any one stop leveling, at this time may be used
Clasp nut control crank is placed in closing position, makes clasp nut combination in "on" position, its box thread and drive screw
Male thread normally engage, manual operation worm screw control crank, rotate worm type of reduction gearing and drive drive screw rotation,
Drive screw transmission clasp nut combination moves backward, clasp nut combination drives jacking block to move backward, and jacking block moves back, and presses simultaneously
Contracting spring, the movable axis being fixed on jacking block follow jacking block to move back while pulling the left single-arm lever being centered around on movable axis
Open end and the open end of right single-arm lever move back, while pulling the rear end of left double-arm lever, right double-arm lever from the left and right sides
Mobile toward centre, left double-arm lever front end drives left movable rack, right double-arm lever front end to drive right movable rack is past to leave liter
The direction for dropping device drives rack gear center is moved, until oneself of a bit of gap is kept completely separate and had with lifting device drive rack
By position；Then Manual jigger mechanism is used, the nearest leveling of lifting device is made；The hand-operating unlocking mechanism is necessarily placed at peace
The position that reliably cannot arbitrarily open entirely, has formulated rules and regulations and has strictly implemented, it is ensured that only had qualification, awarded
The personnel of power could open and use.
4. pinion and-rack lifting device levels electromagnetic according to claim 1 pulls safety catch, characterized in that
The control system of the electromagnetism puller 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 of lifting device controls lifting device drive system in step processed
Driving lifting device moves up a distance element, makes the upper of the lower plane of load-supporting part and right movable rack and left movable rack
Plane has a microgap, and the numerical value of the microgap is left movable rack, right movable rack and lifting device drive rack
0.2~0.6 times of sideshake；Then control electromagnetism puller main body obtains electric, drives left movable rack, right movable rack are past to leave liter
The direction for dropping device drives rack gear center is moved, until oneself of a bit of gap is kept completely separate and had with lifting device drive rack
By position, it is ready for lifting device starting.
5. pinion and-rack lifting device levels electromagnetic according to claim 1 pulls safety catch, characterized in that
The installation method of the lifting device of safety catch is pulled configured with pinion and-rack lifting device levels electromagnetic of the invention
Including when carrying out and install related civil construction early period, it is necessary to precise measurement is carried out by the difference in height to stop and stop,
The difference in height for being constructed and being accurately controlled plane on sill between stop and stop to each stop sill accordingly is drive rack
The integral multiple of tooth pitch, it is correct to adjust working in coordination for lifting device and drive rack in lifting device installation, so that lifting is set
Standby carriage just stops leveling accuracy from first layer and in median.
6. a kind of elevator, characterized in that install and use gear teeth described in any claim in claim 1- claim 5
Formula lifting device levels electromagnetic pulls safety catch.
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| CN201611221564.3A CN107032252B (en) | 2016-12-27 | 2016-12-27 | Pinion and-rack lifting device levels electromagnetic pulls safety catch |
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| CN201611221564.3A CN107032252B (en) | 2016-12-27 | 2016-12-27 | Pinion and-rack lifting device levels electromagnetic pulls safety catch |
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| CN207667890U (en) * | 2017-08-23 | 2018-07-31 | 奥斯汀亚洲香港有限公司 | A kind of nozzle mobile device and the automatic coating equipment with the nozzle mobile device |
| CN109532928A (en) * | 2018-11-13 | 2019-03-29 | 江苏添仂智能科技有限公司 | A kind of quiet dynamic brake traction device of tracks of permanent magnetism |
| CN110722886B (en) * | 2019-09-30 | 2021-03-30 | 国网山东省电力公司济南供电公司 | Seal anti-theft device |
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| US7909142B2 (en) * | 2006-05-19 | 2011-03-22 | Hydro-Mobile Inc. | Braking device for elevating platform assembly |
| CN101003343A (en) * | 2006-12-30 | 2007-07-25 | 济南重工股份有限公司 | Dooly compartment self going type elevator |
| US8210319B2 (en) * | 2007-08-31 | 2012-07-03 | John W. Boyd | Hydraulic elevating platform assembly |
| CN101172554B (en) * | 2007-09-27 | 2011-08-03 | 日立电梯（中国）有限公司 | Bidirectional safety tongs device for elevator |
| CN102259783B (en) * | 2011-03-17 | 2013-04-10 | 太仓市康辉科技发展有限公司 | Mechanical device stopping in case of overspeed |
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Effective date of registration: 20200918 Address after: 215000 A, building 88, Beijing East Road, Taicang Development Zone, Suzhou, Jiangsu Patentee after: TAICANG DNS MECHANICAL & ELECTRICAL ENGINEERING Co.,Ltd. Address before: 4, 528459 floor, No. 2, Xinxing Avenue, Zhongshan Town, Guangdong, A5 Patentee before: Liao Zhongmin |