CN106744194A - Jacking equipment levels electromagnetic lever-rack flat bed controls safety catch - Google Patents
Jacking equipment levels electromagnetic lever-rack flat bed controls safety catch Download PDFInfo
- Publication number
- CN106744194A CN106744194A CN201611221157.2A CN201611221157A CN106744194A CN 106744194 A CN106744194 A CN 106744194A CN 201611221157 A CN201611221157 A CN 201611221157A CN 106744194 A CN106744194 A CN 106744194A
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- China
- Prior art keywords
- jacking equipment
- movable rack
- lever
- jacking
- rack
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0461—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with rack and pinion gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
- B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
- B66B9/022—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable by rack and pinion drives
Abstract
A kind of jacking equipment levels electromagnetic lever-rack flat bed controls 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；With the main load-carrying members directly contact of jacking equipment car or by middle transition component contact load-bearing after on-position is entered, the operating mechanism manipulation activities tooth bar of the movable rack of horizontal direction configuration is moved horizontally or stopped and is maintained at including driving application position that tooth bar engages or completely disengaged with jacking equipment driving tooth bar and have the free position of an intersegmental gap with jacking equipment movable rack on orbit hole；Cost-effective, energy saving is conducive to using lever mated electromagnetism puller；Energy saving is played, the useful space is saved, is significantly improved 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 jacking equipment levels electromagnetic lever
Tooth bar flat bed controls safety catch.
Background technology
The power set of rack-and-pinion jacking equipment are arranged on equipment car, and how alleviator is conducted oneself with dignity, and improves effective
Transport power is one needs the task of ongoing effort；The flat bed control accuracy of jacking equipment, is an important technical indicator, and
New edition standard is more tightened up than the requirement of old edition standard, and how the requirement for reaching standard with suitable method is one is worth the class of research
Topic；The existing safety catch of rack-and-pinion jacking equipment, is, by various methods, drive gear is stopped operating and come real
It is existing；But if drive gear occurs problem, such as the gear teeth are damaged, even if gear is not rotated, cannot guarantee that reliable braking；For
Ensure safety, pinion and-rack jacking equipment must configure reliable coping with including drive gear to be occurred problem and be similar to
The safety catch of safety problem.
The content of the invention
The purpose of the present invention, is to provide that a kind of deadweight is relatively light, langding accuracy is more excellent, copes with and occur including drive gear
The safety catch of problem and similar safety problem.
Fig. 1 is the structural representation that a kind of jacking equipment levels electromagnetic lever-rack flat bed controls safety catch, figure
Show that direction is from the top of rack-and-pinion jacking equipment car 60, sheds top car outside plate finding viewed from above, so for
Jacking equipment drives tooth bar 18 to can only see its top, and right movable rack 17 has carried out broken section treatment, can see it clearly
The internal fit structure (being connected with an arm of right double-arm lever 35) with right double-arm lever 35, right movable rack combination and left activity
Rack combination is the vertical median plane perpendicular to tooth bar projection plane represented with the center chain-dotted line in the middle of tooth bar as symmetrical flat
The mirror symmetric figure in face, support 7 is half section, and Fig. 1 is shown the state that movable rack drives tooth bar to engage with jacking equipment,
Described levels electromagnetic pulls safety catch to be in application position state；Fig. 2 is the rack-and-pinion jacking equipment shown in Fig. 1
Levels electromagnetic pulls the projection side of the releasing schematic diagram of the braking in free state of safety catch, projecting direction and Fig. 1
To identical；Fig. 3 is the A-A partial sectional views of Fig. 1, direction be from the eyes front of A-A sections (in terms of tooth bar direction) finding, drawing from
Rail assembly, movable rack, the front of movable rack, left double-arm lever 34, right both arms thick stick with the operating mechanism of movable rack
The vertical section direction of bar 35 shows the annexation between them, and the state of display is that movable rack drives tooth bar with jacking equipment
Engage the state of braking；Fig. 4 is that the movable rack that view direction same as shown in Figure 3 shows is driven at tooth bar with jacking equipment
In the schematic diagram of released state；Fig. 5 is the B-B partial sectional views of Fig. 1, and direction is to be turned right (toward centerline direction from B-B sections
See) finding, drawing from rail assembly, movable rack, movable rack vertical section direction, it is shown that their behaviour with movable rack
The annexation of the left double-arm lever 34 of vertical mechanism；A kind of jacking equipment levels electromagnetic lever-rack flat bed control safety arrestment dress
(hereinafter referred to as levels electromagnetic lever-rack flat bed control safety catch) is put, it is characterized in that, device is configured by horizontal direction,
Installation site includes in jacking equipment car top or bottom or other rational positions, its composition, load-supporting part, rail
Road component, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, the control of the operating mechanism of movable rack
Device processed, hand-operating unlocking mechanism；Described load-supporting part includes direct load-supporting part or middle transition load-supporting part；Described
Rail assembly includes the horizontal rail that track window aperture 12, guide plate 29, load-supporting part and upper rail 16 and lower rail 19 are formed, described
Movable rack include right movable rack 17 and left movable rack 13, described right movable rack 17 and left movable rack 13 pass through
Track window aperture 12, the tooth form of the part being associated with the driving tooth bar 18 of jacking equipment of movable rack is in can be with lifting
The position that the driving tooth bar 18 of equipment engages or be separate, by moving horizontally on rail assembly or being maintained at some determinations
Position on realize with driving tooth bar 18 engagement or separate, described defined location, including with jacking equipment sliding tooth
Application position or drive tooth bar to be kept completely separate and have the free position in a bit of gap with jacking equipment that bar is engaged, institute
That states has a bit of gap, refers to that driving tooth bar and movable rack tooth top interplanar corresponding thereto have 2~5mm gaps；Activity
Tooth bar is dynamic cooperation with the fit dimension of horizontal rail, and contact surface is smooth low coefficient of friction surfaces, to be conducive to movable teeth
The movement of bar, right movable rack 17 and the top of left movable rack 13 are direct with load-supporting part and upper rail 16 after on-position is entered
Contact load-bearing；The position-limit mechanism of described movable rack includes, on the inner face of the part being associated with guide rail of movable rack
Side or at least one direction of lower section are provided with gathering sill, (referring to Fig. 5), and gathering sill is matched somebody with somebody with the mating part of guide plate 29 for dynamic
Close, to prevent outside or inner side play of the movable rack to car 60；Movable rack top enter on-position after with liter
Load-supporting part (being load-supporting part and upper rail 16 in Fig. 1, Fig. 3) directly contact of drop equipment car or by middle transition load-bearing
Component contact load-bearing；The operating mechanism manipulation activities tooth bar of movable rack is moved horizontally or stopped on orbit hole and is maintained at certain
In a little defined locations, the operating mechanism of described movable rack is arranged in the support knot in the horizontal plane direction of jacking equipment car
On structure 28, described jacking equipment levels electromagnetic lever-rack flat bed control safety catch, its installation site includes car
Top or bottom or other rational positions；The operating mechanism of described movable rack, including, right transmission pivot pin 58,
The right mounting hole 59 that is arranged on main lever 52, the middle mounting hole 55 being arranged on main lever 52, pulling block 54, it is fixed on pulling block 54
On middle transmission pivot pin 53, main lever 52, main lever axle 51, pull bar 6, support 7, spring 8, adjusting nut group 9, jacking block 10, living
Moving axis 21, the hinge component of left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34, right single-arm lever 37, right activity
The hinge component of mandrel 36 and right double-arm lever 35, fixing axle 33；The operating mechanism course of work of movable rack is by movable rack
Operating mechanism control device control, the control device of the operating mechanism of described movable rack includes, electromagnetic draw bar 57, electricity
Magnetic puller main body 56, described electromagnetism puller main body include electromagnetic system, the control system of electromagnetism puller, described electricity
The control system of magnetic puller is powered and is controlled by jacking equipment electric-control system；The electricity of described jacking equipment electric control system
Also include a time delay energy storage device, dead electricity after jacking equipment electric control system obtains electric in the control unit of magnetic puller
When, electromagnetism puller not dead electricity immediately, but after the completion of time delay energy storage device time delay, electromagnetism puller dead electricity；Work as lifting
Equipment general supply disconnects (including the state after original state or dead electricity after the release of energy storage device energy), jacking equipment during without electricity
Remain static；The actual motion direction of the operating mechanism of described movable rack is direction along the horizontal plane, for narration is clear,
Define herein, it is preceding to drive the direction of tooth bar 18, be preceding to the movement of the direction of tooth bar 18 is driven after the direction of electromagnetism puller main body 56 is
Move, moved after being to the movement of the direction of electromagnetism puller main body 56, (if Fig. 1, Fig. 2 are placed vertically, reach is exactly relative to drawing
It is up, afterwards move be exactly descending relative to drawing)；The operating mechanism course of work of movable rack is, as electromagnetism puller master
During 56 dead electricity of body, the electromagnet pull to electromagnetic draw bar 57 disappears, and electromagnetic draw bar 57 is logical with the right transmission pivot pin 58 being fixed thereon
Cross the pulling force that right mounting hole 59, main lever 52, middle mounting hole 55, middle transmission pivot pin 53, pulling block 54, pull bar 6 are transferred to jacking block 10
Also disappear simultaneously, jacking block 10 is moved forward by the elastic force of spring 8 and drives pull bar 6, pulling block 54 to move forward together, is fixed on jacking block 10
Movable axis 21 follow jacking block 10 to move forward, the open end of left single-arm lever 31 that is driven around on movable axis 21 and right single armed thick stick
The open end reach of bar 37, drives the hinge component of left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34, and right list
Arm bar 37, right movable mandrel 36 and the hinge component of right double-arm lever 35, rotate around fixing axle 33, left double-arm lever 34, the right side
The rear end of double-arm lever 35 is opened toward the left and right sides, and left double-arm lever front end drives left movable rack 13, right double-arm lever front end
Right movable rack 17 is driven to drive the center position of tooth bar 18 to move toward jacking equipment, until driving tooth bar 18 complete with jacking equipment
The application position of engagement, brakes to jacking equipment；At the same time, work of the electromagnetic draw bar 57 in electromagnetism puller internal reset mechanism
Resetted forward under, arrival makes right transmission pivot pin 58 have the position in gap with the front-back of right mounting hole 59；When electromagnetism puller
Main body 56 it is electric when, the electromagnet pull of electromagnetic draw bar 57 is produced, electromagnetic draw bar 57 and the right transmission pivot pin 58 being fixed thereon
Main lever 52 is driven around the back rotation of main lever axle 51 by right mounting hole 59, then by being driven pivot pin in the pulling of middle mounting hole
53rd, moved after pulling block 54, pull bar 6, jacking block 10, while compression spring 8, after the movable axis 21 being fixed on jacking block 10 follows jacking block 10
Move, be centered around shifting behind the open end of the open end of the left single-arm lever 31 on movable axis 21 and right single-arm lever 37 while pulling,
Pull the rear end of left double-arm lever 34, right double-arm lever 35 past middle mobile from the left and right sides simultaneously, left double-arm lever front end band
Dynamic left movable rack 13, right double-arm lever front end drive right movable rack 17 toward the side for leaving jacking equipment driving tooth bar 18 center
To movement, until driving tooth bar 18 to be kept completely separate and have the free position in a bit of gap with jacking equipment；Described is a bit of
Gap, refers to 2~5mm gaps；Adjusting nut group 9 is used to adjust the pressure of spring 8, and support 7 fixes the lower surface of spring 9 most
Lower position；If there is abnormal conditions, such as unexpected power down of jacking equipment or because of the action of jacking equipment overspeed protective device
Cut off the electricity supply 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
Immediately 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 electromagnetism puller main body 56, before electromagnet pull disappearance, the jacking block 10 of electromagnetic draw bar 57
Shifting, left movable rack 13, right movable rack 17 and the driving positive engagement of tooth bar 18, it is ensured that the safety of jacking equipment；Urgent system
In the case of dynamic, left movable rack 13, right movable rack 17 may not have at a fully engaged with tooth bar 18 is driven at the beginning, worst
Situation may occur the situation that the peak of tooth bar and peak are contacted when being braking as shown in Figure 6, now be acted in elastic force
Under temporarily become friction catch, if now the braking moment of jacking equipment whole brake apparatus is added up and is enough to realize braking,
Braking task is completed；If now the braking moment of jacking equipment whole brake apparatus is added up and be all not enough to prevention jacking equipment
Glide, (because there is braking moment to act on, just start to glide and understand slower), when slipping down to stagger peak and peak
Position when, left movable rack 13, right movable rack 17 will elastic force promotion under clamp-on drive tooth bar 18 teeth groove in (referring to
Fig. 7), then as continuing to glide, continue to clamp-on, until left movable rack 13, right movable rack 17 are reliable with driving tooth bar 18
Engagement, implements braking；Described electromagnetism puller, is a kind of long-stroke push-and-pull electromagnetism that selected working method is pulling mode
Iron, is a kind of new Electromagnetic Control action executing device, and using power supply power-up control conversion, high-power start, small-power is maintained
Working method, than producing, the old-fashioned electromagnet volume of onesize active force is smaller, deadweight lighter, more power saving；By lever
Conversion, it is possible to use thrust than pushing directly on electromagnetic driver half as large, with cost-effective, energy saving.
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 jacking block 10 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 controls jacking equipment levels electromagnetic lever-rack flat bed to pacify
The motion of full application of brake device has no effect, when jacking equipment because power failure or other reason brake hards are rested in not suddenly
Can with the position of any one stop flat bed when, now clasp nut control crank 23 can be placed in closing position, make folding spiral shell
Mother's combination 24 is normally engaged with the male thread of drive screw 25 in "on" position, its box thread, manually operates worm screw to manipulate hand
Handle 26, rotate worm type of reduction gearing 27 and drive drive screw 25 to rotate, drive screw 25 transmission clasp nut combination 24
It is moved rearwards by, clasp nut combination 24 drives jacking block 10 to be moved rearwards by, is moved after jacking block 10, while compression spring 8, is fixed on jacking block
Movable axis 21 on 10 follow move after jacking block 10, while pull the left single-arm lever 31 being centered around on movable axis 21 open end and
Moved behind the open end of right single-arm lever 37, while pulling the rear end of left double-arm lever 34, right double-arm lever 35 past from the left and right sides
Centre is mobile, and left double-arm lever front end drives left movable rack 13, right double-arm lever front end to drive right movable rack 17 toward leaving
Jacking equipment drives the direction movement at tooth bar 18 center, until driving tooth bar 18 to be kept completely separate and having a bit of with jacking equipment
The free position of gap；Then Manual jigger mechanism is used, makes jacking equipment flat bed nearby；Described hand-operating unlocking mechanism must set
Put in the safe and reliable position that can not arbitrarily open, formulated rules and regulations and strictly implemented, it is ensured that only possessed qualification,
Authorized personnel could open and use.
The time delay energy storage that the control unit of the electromagnetism puller of described jacking equipment electric control system includes
Device, including, a contactor or the combination of relay adjunction tentaculum only by general supply control, and energy storage device, it is described
The normally-closed contact of contactor or relay adjunction the tentaculum combination for only being controlled by general supply is connected across electromagnetism puller and energy storage
Between device, when jacking equipment obtains electric, normally-closed contact disconnects, and the connection between electromagnetism puller and energy storage device also disconnects, and stores up
Can device energy storage；During jacking equipment dead electricity, other electricity-loss braking devices are sent out immediately including the dead electricity band brake apparatus that motor is carried
Wave effect braking, but electromagnetism puller not dead electricity immediately, it is described only by the contactor or relay of general supply control
The normally-closed contact dead electricity closure of adjunction tentaculum combination, makes electromagnetism puller be connected with energy storage device, and energy storage device is pulled to electromagnetism
When time delay (discharge time) constant design tuning of device is that other all electricity-loss braking devices complete the braking that braking needs
Between difference with the action total delay time of the operating mechanism of electromagnetism puller and movable rack including lever；For example, certain
The braking time that all electricity-loss braking devices of other of jacking equipment complete braking and need is 3.5S, electromagnetic driver and movable teeth
The action total delay time of the operating mechanism of bar is 0.3S, then time delay constant design of the energy storage device to electromagnetic driver is whole
It is set to (3.5S-0.3S=) 3.2S；After the completion of time delay energy storage device time delay, electromagnetic driver dead electricity.
The control system of described electromagnetism puller 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 electromagnetism puller 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.
Jacking equipment using jacking equipment levels electromagnetic lever-rack flat bed of the invention control safety catch is each
The distance between possible braking anchor point is that it drives the integral multiple of tooth bar tooth pitch (p=π m), therefore is configured with of the invention
The installation method of the jacking equipment of levels electromagnetic lever-rack flat bed control safety catch includes, carries out and install and be relevant
During early stage civil engineering, it is necessary to carry out accurate measurement by the difference in height to stop and stop, each stop sill is carried out accordingly
It is the integral multiple of driving tooth bar tooth pitch (p=π m) to construct and accurately control the difference in height of plane on sill between stop and stop,
According to the regulation of GB/T10058, it is allowed to which error is ± 10mm (construction internally controlling requirement should be less than this error amount)；In jacking equipment
During installation, correct regulation jacking equipment is worked in coordination with driving tooth bar so that jacking equipment car is just stopped flat from ground floor
Layer is accurate and in median, then later stop flat bed can just meet the requirements, or even occurs in other indivedual flat bed elements
When failure, stop leveling accuracy is also can guarantee that；And flat bed keep precision can be much better than GB/T10058 regulation ±
The requirement of 20mm.
The present invention carries out flat bed control using tooth bar engagement system, and flat bed keeps precision to reach and is much better than GB/
The requirement of ± the 20mm of T10058 regulations；Safeguard protection braking is carried out using tooth bar engagement, it is to avoid existing friction catch side
The potential safety hazard caused because of friction material abrasion or oil pollution or gear failure etc. that formula is likely to occur, improves
The reliability of safety arrestment；Cost-effective, energy saving is conducive to using lever mated electromagnetism puller；Horizontal direction configuration can
Set with top set or bottom and installed, saved the useful space in car；Therefore, it is possible to play cost-effective, energy saving,
The lifting useful space, the beneficial effect for improving langding accuracy and safeguard protection braking quality.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of jacking equipment levels electromagnetic lever-rack flat bed controls safety catch.
Fig. 2 is in free state for the jacking equipment levels electromagnetic lever-rack flat bed control safety catch of Fig. 1
Schematic diagram.
Fig. 3 is the A-A partial sectional views of Fig. 1.
Fig. 4 is that the movable rack that view direction same as shown in Figure 3 shows drives tooth bar releasing to engage with jacking equipment
Schematic diagram in free state.
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
Electromagnetism pulls safety catch to be 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 pulls 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 lever-rack flat bed control safety catch its internal structure each several part composition and effect explanation see Fig. 1~
Shown in 7, and described in [0004] section, [0005] section, [0006] section, [0007] section, due to being related to the cooperation of multiple transmission systems
Coordinate, so workmanship and installation quality are should be specifically noted that in manufacture and installation, including must do described in [0008] section
Good is the integral multiple of driving tooth bar tooth pitch (p=π m) including accurately controlling the difference in height of plane on sill between stop and stop
Relevant work, it is ensured that necessary precision, detect it is qualified after, could trial operation；The electric control system of jacking equipment is using embedding
Used as master control system, its course of work is embedded system, when system is without electricity, when electromagnetism puller 56 dead electricity of main body, to electricity
The electromagnet pull of magnetic pull bar 57 disappears, and electromagnetic draw bar 57 is with the right transmission pivot pin 58 being fixed thereon by right mounting hole 59, master
The pulling force that lever 52, middle mounting hole 55, middle transmission pivot pin 53, pulling block 54, pull bar 6 are transferred to jacking block 10 also disappears simultaneously, jacking block
10 are moved forward by the elastic force of spring 8 and drive pull bar 6, pulling block 54 to move forward together, and the movable axis 21 being fixed on jacking block 10 is followed
Before jacking block 10 moves forward, be driven around on movable axis 21 the open end of left single-arm lever 31 and the open end of right single-arm lever 37
Move, drive the hinge component of left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34, and right single-arm lever 37, right work
Moving mandrel 36 and the hinge component of right double-arm lever 35, rotate, after left double-arm lever 34, right double-arm lever 35 around fixing axle 33
Hold toward the left and right sides and open, left double-arm lever front end drives left movable rack 13, right double-arm lever front end to drive right movable rack
17 drive the movement of the center position of tooth bar 18 toward jacking equipment, until driving the at a fully engaged retarder location of tooth bar 18 with jacking equipment
Put, jacking equipment is braked；At the same time, electromagnetic draw bar 57 is multiple forward in the presence of electromagnetism puller internal reset mechanism
Position, arrival makes right transmission pivot pin 58 have the position in gap with the front-back of right mounting hole 59；When electromagnetism puller main body 56 obtains electric
When, the electromagnet pull to electromagnetic draw bar 57 is produced, and electromagnetic draw bar 57 is with the right transmission pivot pin 58 being fixed thereon by right kidney-shaped
Hole 59 drives main lever 52 around the back rotation of main lever axle 51, then by being driven pivot pin 53, pulling block 54 in the pulling of middle mounting hole, drawing
Moved after bar 6, jacking block 10, while compression spring 8, the movable axis 21 being fixed on jacking block 10 moves after following jacking block 10, while pulling
Moved behind the open end of the left single-arm lever 31 being centered around on movable axis 21 and the open end of right single-arm lever 37, while pulling left double
, from the left and right sides toward middle movement, left double-arm lever front end drives left movable rack for arm bar 34, the rear end of right double-arm lever 35
13rd, right double-arm lever front end drives right movable rack 17 toward the direction movement for leaving jacking equipment driving tooth bar 18 center, until
Tooth bar 18 is driven to be kept completely separate and have the free position in a bit of gap with jacking equipment；Described a bit of gap refers to 2~
5mm gaps；Adjusting nut group 9 is used to adjust the pressure of spring 8, and support 7 fixes the extreme lower position of the lower surface of spring 9；Work as liter
When drop equipment prepares to start, the drive system of the electric control system control jacking equipment of jacking equipment drives jacking equipment upward
A mobile distance element, makes the lower plane of load-supporting part and upper rail 16 and right movable rack 17 and the upper plane of left movable rack 13
There is a microgap, the numerical value of described microgap is that left movable rack 13, right movable rack 17 and jacking equipment drive tooth bar
0.2~0.6 times of 18 sideshakes；Then the electric control system control electromagnetism puller main body 56 of jacking equipment obtains electric, to electromagnetism
The electromagnet pull of pull bar 57 is produced, and electromagnetic draw bar 57 drives master with the right transmission pivot pin 58 being fixed thereon by right mounting hole 59
Lever 52 around the back rotation of main lever axle 51, then by middle mounting hole pull in be driven pivot pin 53, pulling block 54, pull bar 6, jacking block 10
After move, while compression spring 8, the movable axis 21 being fixed on jacking block 10 moves after following jacking block 10, while pulling is centered around activity
Behind the open end of the left single-arm lever 31 on axle 21 and the open end of right single-arm lever 37 move, while pull left double-arm lever 34,
From the left and right sides toward middle movement, left double-arm lever front end drives left movable rack 13, right both arms for the rear end of right double-arm lever 35
Its end of lever drives right movable rack 17 toward the direction movement for leaving jacking equipment driving tooth bar 18 center, until and jacking equipment
Tooth bar 18 is driven to be kept completely separate and have the free position in a bit of gap；When jacking equipment needs to stop after starting, jacking equipment
Electric control system first disconnect jacking equipment motor power, motor deceleration, when close to stop position, such as close to flat
During layer position, electric control system controls the dead electricity of electromagnetism puller main body 56 on schedule, and the electromagnet pull to electromagnetic draw bar 57 disappears
Lose, electromagnetic draw bar 57 and the right transmission pivot pin 58 being fixed thereon by right mounting hole 59, main lever 52, middle mounting hole 55, in
The pulling force that transmission pivot pin 53, pulling block 54, pull bar 6 are transferred to jacking block 10 is also disappeared simultaneously, and jacking block 10 is moved forward simultaneously by the elastic force of spring 8
And driving pull bar 6, pulling block 54 to move forward together, the movable axis 21 being fixed on jacking block 10 follows jacking block 10 to move forward, be driven around
The open end reach of the open end and right single-arm lever 37 of the left single-arm lever 31 on movable axis 21, the left single-arm lever 31 of drive,
The hinge component of left movable mandrel 32 and left double-arm lever 34, and right single-arm lever 37, right movable mandrel 36 and right double-arm lever
35 hinge component, is rotated around fixing axle 33, and left double-arm lever 34, the rear end of right double-arm lever 35 are opened toward the left and right sides, left
Double-arm lever front end drives left movable rack 13, right double-arm lever front end to drive right movable rack 17 to drive tooth bar toward jacking equipment
18 center positions are moved, until driving the at a fully engaged application position of tooth bar 18 with jacking equipment, jacking equipment are braked；With this
Meanwhile, electromagnetic draw bar 57 resets forward in the presence of electromagnetism puller internal reset mechanism, arrival make it is right transmission pivot pin 58 with
The front-back of right mounting hole 59 has the position in gap；If there is abnormal conditions, the unexpected power down of such as jacking equipment or because
Jacking equipment overspeed protective device action power dump or because jacking equipment reach the limit of guarded by location device action cut-out
Power supply etc., the dead electricity band-type brake that now jacking equipment general supply is carried without electricity, other electricity-loss braking devices including motor immediately
Device plays a role braking immediately；Due to the effect of time delay energy storage device, electromagnetism puller main body 56 is not dead electricity immediately, is being prolonged
When energy storage device time delay after the completion of, the dead electricity of electromagnetism puller main body 56 disappears, before jacking block 10 to the electromagnet pull of electromagnetic draw bar 57
Shifting, left movable rack 13, right movable rack 17 and the driving positive engagement of tooth bar 18, it is ensured that the safety of jacking equipment；Urgent system
In the case of dynamic, left movable rack 13, right movable rack 17 may not have at a fully engaged with tooth bar 18 is driven at the beginning, worst
Situation may occur the situation that the peak of tooth bar and peak are contacted when being braking as shown in Figure 6, now be acted in elastic force
Under temporarily become friction catch, if now the braking moment of jacking equipment whole brake apparatus is added up and is enough to realize braking,
Braking task is completed；If now the braking moment of jacking equipment whole brake apparatus is added up and be all not enough to prevention jacking equipment
Glide, (because there is braking moment to act on, just start to glide and understand slower), when slipping down to stagger peak and peak
Position when, left movable rack 13, right movable rack 17 will elastic force promotion under clamp-on drive tooth bar 18 teeth groove in (referring to
Fig. 7), then as continuing to glide, continue to clamp-on, until left movable rack 13, right movable rack 17 are reliable with driving tooth bar 18
Engagement, implements braking；When jacking equipment because have a power failure suddenly or other reason brake hards rest in can not be with any one
During the position of stop flat bed, now clasp nut control crank 23 can be placed in closing position, combine clasp nut 24 to be in
"on" position, its box thread normally engage with the male thread of drive screw 25, manually operate worm screw control crank 26, make worm gear snail
Bar decelerator 27 is rotated and drives drive screw 25 to rotate, the transmission clasp nut of drive screw 25 combination 24 is moved rearwards by, folding
Nut combination 24 drives jacking blocks 10 to be moved rearwards by, the movable axis 21 being fixed on jacking block 10 follow move after jacking block 10, while pulling
Moved behind the open end of the left single-arm lever 31 being centered around on movable axis 21 and the open end of right single-arm lever 37, while pulling left double
, from the left and right sides toward middle movement, left double-arm lever front end drives left movable rack for arm bar 34, the rear end of right double-arm lever 35
13rd, right double-arm lever front end drives right movable rack 17 toward the direction movement for leaving jacking equipment driving tooth bar 18 center, until
Tooth bar 18 is driven to be kept completely separate and have the free position in a bit of gap with jacking equipment；Then Manual jigger mechanism is used, is made
Jacking 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.
Embodiment 2, Fig. 8, Fig. 9 are also the schematic diagram of embodiment 2, it is shown that one kind is mounted with lifting of the present invention
Equipment level electromagnetic lever tooth bar flat bed controls the elevator of safety catch, the jacking equipment levels electromagnetic lever-rack of use
The explanation of flat bed its internal structure each several part of control safety catch composition and effect is as shown in Fig. 1~7, and [0004]
Described in section, [0005] section, [0006] section, [0007] section, operation principle 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 jacking equipment levels electromagnetic lever-rack flat bed controls safety catch, it is characterized in that, device presses level side
To configuration, installation site includes in jacking equipment car top or bottom or other rational positions, its composition, load-bearing
Part, rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, the manipulation machine of movable rack
The control device of structure, hand-operating unlocking mechanism；Described load-supporting part includes direct load-supporting part or middle transition load-supporting part；
Described rail assembly includes the horizontal rail that track window aperture, guide plate, load-supporting part and upper rail and lower rail are formed, described
Movable rack includes right movable rack and left movable rack, and described right movable rack and left movable rack pass through track window
Hole, the tooth form of the part being associated with the driving tooth bar of jacking equipment of movable rack is in can be with the sliding tooth of jacking equipment
The position that bar engages or be separate, by move horizontally on rail assembly or be maintained at realized in some defined locations with
Drive tooth bar engagement or separation, described defined location, including with jacking equipment drive tooth bar engage application position,
Or drive tooth bar to be kept completely separate and have the free position in a bit of gap with jacking equipment, described has a bit of gap,
Refer to that driving tooth bar and movable rack tooth top interplanar corresponding thereto have 2~5mm gaps；Movable rack is matched somebody with somebody with horizontal rail
It is dynamic cooperation to close size, and contact surface is smooth low coefficient of friction surfaces, to be conducive to the movement of movable rack, right movable rack
With left movable rack top enter on-position after with load-supporting part and upper rail directly contact load-bearing；Described movable rack
Position-limit 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 opened
There is gathering sill, gathering sill is dynamic cooperation with the mating part of guide plate, to prevent outside or inner side of the movable rack to car
Play；Movable rack top is after on-position is entered with the load-supporting part directly contact of jacking equipment car or by centre
Transition load-supporting part contacts load-bearing；The operating mechanism manipulation activities tooth bar of movable rack is moved horizontally or stopped on orbit hole
It is maintained in some defined locations, the operating mechanism of described movable rack is arranged in the horizontal plane direction of jacking equipment car
Support structures on, described jacking equipment levels electromagnetic lever-rack flat bed control safety catch, its installation site bag
Include the top or bottom or other rational positions of car；The operating mechanism of described movable rack, including, right transmission
Pivot pin, the right mounting hole being arranged on main lever, the middle mounting hole that is arranged on main lever, pulling block, it is fixed on pulling block
Transmission pivot pin, main lever, main lever axle, pull bar, support, spring, adjusting nut group, jacking block, movable axis, left single-arm lever, a left side
The hinge component of movable mandrel and left double-arm lever, the hinge component of right single-arm lever, right movable mandrel and right double-arm lever, Gu
Dead axle；The operating mechanism course of work of movable rack is controlled by the control device of the operating mechanism of movable rack, described activity
The control device of the operating mechanism of tooth bar includes that electromagnetic draw bar, electromagnetism puller main body, described electromagnetism puller main body include
The electromagnetic system of electromagnetism puller, control system, the control system of described electromagnetism puller are supplied by jacking equipment electric-control system
Electricity and control；Also include a time delay energy storage in the control unit of the electromagnetism puller of described jacking equipment electric control system
Device, when jacking equipment electric control system obtain it is electric after dead electricity when, electromagnetism puller not dead electricity immediately, but in time delay storage
After the completion of energy device time delay, electromagnetism puller dead electricity；When jacking equipment general supply is disconnected without electricity, jacking equipment is 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 tooth bar direction, is reach to the movement of tooth bar direction is driven, to electromagnetism puller after electromagnetism puller main direction is
Main direction movement is moved after being；The operating mechanism course of work of movable rack is, when electromagnetism puller main body dead electricity, to electromagnetism
The electromagnet pull of pull bar disappears, and electromagnetic draw bar is with the right transmission pivot pin being fixed thereon by right mounting hole, main lever, middle kidney-shaped
Hole, middle transmission pivot pin, pulling block, pull bar are transferred to the pulling force of jacking block also while disappearing, jacking block is by the elastic force reach of spring and band
Dynamic pull bar, pulling block move forward together, and the movable axis being fixed on jacking block follows the left list that jacking block moves forward, is driven around on movable axis
The open end reach of the open end of arm bar and right single-arm lever, drives left single-arm lever, left movable mandrel and left double-arm lever
Hinge component, and right single-arm lever, right movable mandrel and right double-arm lever hinge component, rotated around fixing axle, left both arms
Lever, the rear end of right double-arm lever are opened toward the left and right sides, before left double-arm lever front end drives left movable rack, right double-arm lever
End drives right movable rack to drive the movement of tooth bar center position toward jacking equipment, until driving tooth bar at a fully engaged with jacking equipment
Application position, to jacking equipment brake；At the same time, electromagnetic draw bar in the presence of electromagnetism puller internal reset mechanism to
Preceding reset, arrival makes right transmission pivot pin have the position in gap with right mounting hole front-back；When electromagnetism puller main body obtains electric,
Electromagnet pull to electromagnetic draw bar is produced, and electromagnetic draw bar drives main thick stick with the right transmission pivot pin being fixed thereon by right mounting hole
Bar is moved around main lever axle back rotation, then after being driven pivot pin, pulling block, pull bar, jacking block during middle mounting hole is pulled, while compression
Spring, the movable axis being fixed on jacking block follow move after jacking block, while pulling opening for the left single-arm lever being centered around on movable axis
Moved after putting the open end of end and right single-arm lever, while pulling the rear end of left double-arm lever, right double-arm lever past from the left and right sides
Centre is mobile, and left double-arm lever front end drives left movable rack, right double-arm lever front end to drive right movable rack toward leaving lifting
The direction movement of the device drives tooth bar heart, until driving tooth bar to be kept completely separate and have the free position in a bit of gap with jacking equipment
Put；Described a bit of gap, refers to 2~5mm gaps；Adjusting nut group is used to adjust the pressure of spring, and support fixes spring
Rear end face rearmost position；If there is abnormal conditions, such as unexpected power down of jacking equipment or because of jacking equipment hypervelocity
Protection device action power dump or because jacking equipment reaches the limit of guarded by location device action and cuts off the electricity supply etc., this
When jacking equipment general supply immediately without electricity, other electricity-loss braking devices are played immediately including the dead electricity band brake apparatus that motor is carried
Effect braking, after the completion of energy storage device time delay, electromagnetism puller main body dead electricity, to electromagnet pull disappearance, the top of electromagnetic draw bar
Block reach, left movable rack, right movable rack and driving tooth bar positive engagement, it is ensured that the safety of jacking equipment；Described electricity
Magnetic puller, is a kind of long-stroke push-and-pull electromagnet that selected working method is pulling mode, is a kind of new Electromagnetic Control
Action executing device, using power supply power-up control conversion, high-power start, the working method that small-power is maintained；By lever change,
The electromagnetic driver more half as large than the thrust for pushing directly on can be used, with cost-effective, energy saving.
2. jacking equipment levels electromagnetic lever-rack flat bed according to claim 1 controls safety catch, its feature
It is, described hand-operating unlocking mechanism, including, clasp nut control crank, clasp nut combination, drive screw, worm screw manipulate hand
Handle, worm type of reduction gearing, wherein clasp nut combine with jacking block be fixedly connected, drive screw and worm type of reduction gearing
Worm gear to be fixedly connected, usually, clasp nut control crank be placed in open a sluice gate position, clasp nut combination in state of opening a sluice gate, its
Box thread has no effect without engagement, drive screw with the male thread of drive screw to the motion that clasp nut is combined, so that hand
Motion of the dynamic unlocking mechanism to jacking equipment levels electromagnetic lever-rack flat bed control safety catch has no effect, and works as liter
Drop equipment because suddenly have a power failure or other reason brake hards rest in can not with the position of any one stop flat bed when, this
When can clasp nut control crank be placed in closing position, make clasp nut combine in "on" position, its box thread with transmission
The male thread of screw rod normally engages, manually operates worm screw control crank, rotates worm type of reduction gearing and drive drive screw
Rotate, drive screw transmission clasp nut combination is moved rearwards by, clasp nut combination drives jacking block to be moved rearwards by, moved after jacking block,
Compression spring simultaneously, the movable axis being fixed on jacking block follow move after jacking block, while pulling the left single armed being centered around on movable axis
Moved behind the open end of the open end of lever and right single-arm lever, while pulling the rear end of left double-arm lever, right double-arm lever from a left side
Toward middle movement, left double-arm lever front end drives left movable rack, its end of right double-arm lever to drive right movable rack past for right both sides
The direction movement that jacking equipment drives tooth bar center is left, until driving tooth bar to be kept completely separate and having a bit of with jacking equipment
The free position of gap；Then Manual jigger mechanism is used, makes jacking equipment flat bed nearby；Described hand-operating unlocking mechanism must set
Put in the safe and reliable position that can not arbitrarily open, formulated rules and regulations and strictly implemented, it is ensured that only possessed qualification,
Authorized personnel could open and use.
3. jacking equipment levels electromagnetic lever-rack flat bed according to claim 1 controls safety catch, its feature
It is, the time delay energy storage device that the control unit of the electromagnetic driver of described jacking equipment electric control system includes,
Including, one contactor or the combination of relay adjunction tentaculum by general supply control, and energy storage device, described only receives total
The normally-closed contact of contactor or relay adjunction the tentaculum combination of power supply be connected across electromagnetic driver and energy storage device it
Between, when jacking equipment obtains electric, normally-closed contact disconnects, and the connection between electromagnetic driver and energy storage device also disconnects, energy storage device
Energy storage；During jacking equipment dead electricity, other electricity-loss braking devices play a role immediately including the dead electricity band brake apparatus that motor is carried
Braking, but electromagnetic driver not dead electricity immediately, described is only touched by the contactor of general supply control or relay adjunction
The normally-closed contact dead electricity closure of device combination, makes electromagnetic driver be connected with energy storage device, and energy storage device prolongs to electromagnetic driver
Slow time (discharge time) constant design tuning is braking time and the electricity that other all electricity-loss braking devices complete that braking needs
The difference of the action total delay time of the operating mechanism of magnetic pusher and movable rack；After the completion of time delay energy storage device time delay, electricity
Magnetic pusher dead electricity.
4. jacking equipment levels electromagnetic lever-rack flat bed according to claim 1 controls safety catch, its feature
It is that the control system of described electromagnetism puller is powered and controlled by jacking equipment electric control system, its electric control system
Rate-determining steps include, when jacking equipment prepare start when, jacking equipment electric control system control jacking equipment drive
System drive jacking equipment moves up a distance element, makes the lower plane of load-supporting part and right movable rack and left movable rack
Upper plane have a microgap, the numerical value of described microgap is left movable rack, right movable rack and jacking equipment driving
0.2~0.6 times of tooth bar sideshake；Then control electromagnetism puller main body obtains electric, drive left movable rack, right movable rack toward from
The direction movement that jacking equipment drives tooth bar center is opened, until driving tooth bar to be kept completely separate and have a bit of gap with jacking equipment
Free position, be jacking equipment start it is ready.
5. jacking equipment levels electromagnetic lever-rack flat bed according to claim 1 controls safety catch, its feature
It is the installation of the jacking equipment for being configured with jacking equipment levels electromagnetic lever-rack flat bed control safety catch of the invention
Method includes, when carrying out and install relevant early stage civil engineering, it is necessary to carried out accurately by the difference in height to stop and stop
Measurement, is constructed to each stop sill and is accurately controlled the difference in height of plane on sill between stop and stop to drive accordingly
The integral multiple of carry-over bar tooth pitch, when jacking equipment is installed, correct regulation jacking equipment is worked in coordination with driving tooth bar so that
Jacking equipment car just stops leveling accuracy from ground floor and in median.
6. a kind of elevator, it is characterized in that, install and use the lifting in claim 1- claims 5 described in any claim and set
Standby levels electromagnetic lever-rack flat bed control safety catch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611221157.2A CN106744194B (en) | 2016-12-27 | 2016-12-27 | Lifting device levels electromagnetic lever-rack leveling controls safety catch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611221157.2A CN106744194B (en) | 2016-12-27 | 2016-12-27 | Lifting device levels electromagnetic lever-rack leveling controls safety catch |
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| CN106744194B CN106744194B (en) | 2019-08-06 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003343A (en) * | 2006-12-30 | 2007-07-25 | 济南重工股份有限公司 | Dooly compartment self going type elevator |
| WO2007134441A1 (en) * | 2006-05-19 | 2007-11-29 | Hydro Mobile Inc. | Braking device for elevating platform assembly |
| CN101172554A (en) * | 2007-09-27 | 2008-05-07 | 日立电梯（中国）有限公司 | Bidirectional safety tongs device for elevator |
| CN101795959A (en) * | 2007-08-31 | 2010-08-04 | 约翰·W·博伊德 | Hydraulic elevating platform assembly |
| CN102259783A (en) * | 2011-03-17 | 2011-11-30 | 太仓市康辉科技发展有限公司 | Mechanical device stopping in case of overspeed |
| CN106744195A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | Rack-and-pinion jacking equipment levels electromagnetic lever flat bed controls safety catch |
-
2016
- 2016-12-27 CN CN201611221157.2A patent/CN106744194B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007134441A1 (en) * | 2006-05-19 | 2007-11-29 | 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 |
| CN101795959A (en) * | 2007-08-31 | 2010-08-04 | 约翰·W·博伊德 | Hydraulic elevating platform assembly |
| CN101172554A (en) * | 2007-09-27 | 2008-05-07 | 日立电梯（中国）有限公司 | Bidirectional safety tongs device for elevator |
| CN102259783A (en) * | 2011-03-17 | 2011-11-30 | 太仓市康辉科技发展有限公司 | Mechanical device stopping in case of overspeed |
| CN106744195A (en) * | 2016-12-27 | 2017-05-31 | 廖忠民 | Rack-and-pinion jacking equipment levels electromagnetic lever flat bed controls safety catch |
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