CN106744143B - Lifting device electromagnetic lever leveling controls safety catch - Google Patents

Lifting device electromagnetic lever leveling controls safety catch Download PDF

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Publication number
CN106744143B
CN106744143B CN201611221129.0A CN201611221129A CN106744143B CN 106744143 B CN106744143 B CN 106744143B CN 201611221129 A CN201611221129 A CN 201611221129A CN 106744143 B CN106744143 B CN 106744143B
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China
Prior art keywords
lifting device
rack
movable rack
lever
movable
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CN201611221129.0A
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Chinese (zh)
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CN106744143A (en
Inventor
廖忠民
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/26—Positively-acting devices, e.g. latches, knives
    • 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
    • B66B1/365—Means for stopping the cars, cages, or skips at predetermined levels mechanical
    • 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
    • B66B1/42—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings separate from the main drive
    • 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
    • B66B11/0415—Driving gear ; Details thereof, e.g. seals actuated manually, e.g. additional safety system
    • 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
    • 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

Abstract

A kind of lifting device electromagnetic lever leveling control safety catch, movable rack can be moved horizontally or be maintained on rail assembly on the position of certain determinations, it is directly contacted after entering on-position with the main load-carrying members of lifting device carriage at the top of movable rack and perhaps moves horizontally or stop on orbit hole on the position for being maintained at certain determinations by the operating mechanism manipulation activities rack gear that middle transition load-supporting part contacts load-bearing movable rack；The position of the determination, the free position that is completely disengaged and having one section of gap including the application position engaged with lifting device drive rack or with lifting device drive rack；Leveling control and safeguard protection braking are carried out using electromagnetism pull lever manipulation rack gear engagement system, plays and significantly improves leveling accuracy and keep precision, improve safeguard protection and brake quality, energy saving, save the cost beneficial effect.

Description

Lifting device electromagnetic lever leveling controls safety catch
Technical field
The present invention relates to the control of the leveling of lifting device and safety catch fields, more particularly to a kind of lifting device Electromagnetic lever leveling controls safety catch.
Background technique
Rack-and-pinion lifting device has the characteristics that be different from traction-type lifting device, but existing rack-and-pinion is gone up and down The leveling control of equipment is to continue to use the method for detecting cooperation electrical control friction catch by sensor of traction-type lifting device It realizes, and the variation of performance drift and friction member coefficient of friction due to detection control element, langding accuracy can become Change；In addition the safety arrestment measure of existing pinion and-rack lifting device, or by being braked to motor shaft or being logical The method of the braking to gear shaft is crossed to realize, these methods belong to friction catch mode, exist probably due to friction material mill Security risk caused by damage or oil pollution etc., in addition if problem occurs for driving gear, method above-mentioned is with regard to incapability Power, and gear is driven to occur what problem was possible to；Therefore, from langding accuracy and security performance consideration is improved, according to gear The characteristics of teeth bar type up-down equipment itself, proposes a kind of improved leveling control and safety catch.
Summary of the invention
The purpose of the present invention is to provide a kind of leveling and keeps stable accuracy, the leveling control that can reliably brake and peace Full application of brake device combines energy saving requirement.
A kind of lifting device electromagnetic lever leveling control safety catch (hereinafter referred to as electromagnetic lever leveling control safety Brake apparatus), including, load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, movable rack manipulation machine Structure, the control device of the operating mechanism of movable rack, hand-operating unlocking mechanism；The load-supporting part include direct load-supporting part or Person's middle transition load-supporting part；The rail assembly (referring to Fig. 1) includes upper rail 15 (in Fig. 1 and load-supporting part), lower rail 18 horizontal rails formed, track window aperture 11；Movable rack passes through track window aperture 11, and the movable rack includes left work Carry-over bar 12 and right movable rack 16, the tooth form for the part of movable rack being associated with drive rack 17 is in can be with lifting The drive rack 17 of equipment engages perhaps isolated position by moving horizontally or keeping in the horizontal rail of rail assembly It realizes and the engagement of drive rack or separates, the position of the determination on the position of certain determinations, including set with lifting The application position (referring to Fig. 1) or be kept completely separate and have between one section with lifting device drive rack that standby drive rack engages The free position (referring to fig. 2) of gap, described has one section of gap, refers to that drive rack and movable rack tooth top corresponding thereto are flat There is >=the distance of 2mm between face；The position-limit mechanism of the movable rack, including, the part of movable rack being associated with guide rail At least one direction of inner face either above or below be provided with guiding notch, (referring to Fig. 3), with movable rack cover board (left cover Plate 13, right cover plate are dismantled not have and be drawn) a part guide groove 28 is collectively formed, 29 a part of guide plate is fixed on horizontal rail Upper, a part enters guide groove 28, and guide groove 28 and the mating part of guide plate 29 are dynamic cooperation, to prevent movable rack to sedan-chair The outside in compartment or inside play；It is direct with the load-supporting part of lifting device carriage after entering on-position at the top of movable rack Contact contacts load-bearing (being the directly contact load-bearing of load-supporting part and upper rail 15 in Fig. 1) by middle transition load-supporting part；It is living The operating mechanism manipulation activities rack gear of carry-over bar is moved horizontally or is stopped on orbit hole on the position for being maintained at certain determinations, The control device of the operating mechanism of the movable rack includes electromagnetism puller and its control system, and the electromagnetism pulls The control system of device is powered and is controlled by lifting device electric-control system；The lifting device electromagnetic lever leveling control safety system Dynamic device, the electromagnetic lever leveling including being directly arranged in lifting device carriage controls safety catch, or individually sets The independent electromagnetic lever leveling control safety catch setting component, being then fitted on lifting device.
Fig. 1 is a kind of lifting device electromagnetic lever leveling control safety catch being directly arranged on lifting device Structural schematic diagram, diagram direction are that lifting device electromagnetism pulls leveling control safety catch to be directly installed on lifting device sedan-chair Compartment 30 on 30 side of inside carriage of certain one side of drive rack 18, from the inside of carriage 30 toward institute in terms of 30 side of carriage See, so can only see it for drive rack 17 passes through the sub-fraction that track window aperture 11 is shown, right movable rack 16 is unloaded Cover board is opened, the combination of right movable rack and left movable rack 12 plus a left side its internal structure can be seen clearly, after covering right cover plate The combination of cover board 13 is similar, the two be with rack gear among center chain-dotted line 14 indicate perpendicular to the vertical of rack gear projection plane Median plane is the mirror symmetric figure of symmetrical plane, and the application position that movable rack is engaged with drive rack 17 is shown in Fig. 1, is schemed 2 are in the schematic diagram of free position state for electromagnetic propulsion rack-and-pinion safety catch described in Fig. 1；Described one kind is directly The lifting device electromagnetism that is arranged on lifting device pulls leveling control safety catch, including load-supporting part, rail assembly, Movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, movable rack operating mechanism control device, Hand-operating unlocking mechanism；The load-supporting part includes upper rail and main load-supporting part 15；The rail assembly includes track window The horizontal rail that hole 11, upper rail and main load-supporting part 15 and lower rail 18 are formed；The movable rack includes right movable rack 16 With left movable rack 12, the right movable rack 16 and left movable rack 12 pass through track window aperture 11, movable rack with The tooth form for the part that drive rack is associated is in can lead to the engagement of the drive rack 17 of lifting device or isolated position It crosses on the position for moving horizontally or being maintained at certain determinations in the horizontal rail of rail assembly and realizes and drive rack 17 Engagement or separation, right movable rack 16 and 12 top of left movable rack are simultaneous with the upper rail of lift car after entering on-position Main load-supporting part 15 directly contacts load-bearing, and the fit dimension of movable rack and horizontal rail is dynamic cooperation, and contact surface is smooth Low coefficient of friction surfaces, to be conducive to the movement of movable rack；Fig. 3 is the A-A partial sectional view of Fig. 1, the movable rack Position-limit mechanism, including, guiding notch is provided with above the inner face of a part that movable rack is associated with guide rail, with movable teeth Guide groove 28 is collectively formed in a part of bar cover board (left cover 13, right cover plate, which do not have, to be drawn), and 29 a part of guide plate is fixed on In horizontal rail 15, a part enter guide groove 28, the mating part of guide groove 28 and guide plate 29 is dynamic cooperation, to prevent from living Outside or inside play of the carry-over bar to carriage 30；The operating mechanism of the movable rack, including, right transmission pivot pin 58, The right kidney slot 59 that is arranged on main lever 52, pulling block 54, is fixed on pulling block 54 at the middle kidney slot 55 being arranged on main lever 52 On middle transmission pivot pin 53, main lever 52, main lever axis 51, pull rod 6, bracket 7, spring 8, adjusting nut group 9, jacking block 10, living Moving axis 21, the hinge component of left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34, right single-arm lever 37, right activity The hinge component of mandrel 36 and right double-arm lever 35, fixing axle 33；The operating mechanism course of work of movable rack is by movable rack Operating mechanism control device control, the control device of the operating mechanism of the movable rack includes, electromagnetic draw bar 57, electricity Magnetic puller main body 56, the electromagnetism puller main body include the electromagnetic system of electromagnetism puller, control system, the electricity The control system of magnetic puller is powered and is controlled by lifting device electric-control system；The electricity of the lifting device electric control system It further include the only relay that is controlled by general supply or a contactor and energy storage device in the control unit of magnetic puller, it is described The normally-closed contact of relay or contactor only control by general supply be connected across between electromagnetism puller and energy storage device, liter When drop equipment obtains electric, normally-closed contact is disconnected, and the connection between electromagnetism puller and energy storage device also disconnects, energy storage device energy storage； When lifting device power loss, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays a role braking immediately, But electromagnetism puller not power loss immediately, the relay only controlled by general supply or contactor normally-closed contact power loss Closure, connect electromagnetism puller with energy storage device, delay time (discharge time) constant of energy storage device to electromagnetism puller Design tuning is that other electricity-loss braking devices individually complete the braking time that braking needs and electromagnetism puller and movable rack The difference of the movement total delay time of operating mechanism；For example, other electricity-loss braking devices of certain lifting device are individually completed to make The braking time of needs is moved 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 delay to the delay time constant design tuning of electromagnetism puller After the completion, electromagnetism puller power loss；When lifting device general supply is disconnected without electricity (including energy storage fills after original state or power loss State after setting energy release), lifting device remains static；The operating mechanism course of work of movable rack is to work as electromagnetism When puller 56 power loss of main body, disappear to the electromagnet pull of electromagnetic draw bar 57, electromagnetic draw bar 57 and the right transmission being fixed thereon Pivot pin 58 is transferred to jacking block by right kidney slot 59, main lever 52, middle kidney slot 55, middle transmission pivot pin 53, pulling block 54, pull rod 6 10 pulling force also disappears simultaneously, jacking block 10 by spring 8 elastic force uplink and drive pull rod 6, pulling block 54 uplink together, be fixed on Movable axis 21 on jacking block 10 follow 10 uplink of jacking block, the left single-arm lever 31 being driven around on movable axis 21 open end and The open end uplink of right single-arm lever 37 drives the hinge set of left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34 The hinge component of part and right single-arm lever 37, right movable mandrel 36 and right double-arm lever 35, rotates, left both arms around fixing axle 33 Lever 34, right double-arm lever 35 lower end opened toward the left and right sides, left double-arm lever upper end drives left movable rack 12, right both arms Lever upper end drives right movable rack 16 mobile toward 17 center position of lifting device drive rack, until with lifting device sliding tooth The at a fully engaged application position of item 17 brakes lifting device；At the same time, electromagnetic draw bar 57 is in electromagnetism puller internal reset It is resetted upwards under the action of mechanism, reaches the position for making right transmission pivot pin 58 and the right 59 top and bottom gap Jun You of kidney slot；Work as electricity When magnetic puller main body 56 obtains electric, the electromagnet pull of electromagnetic draw bar 57 is generated, electromagnetic draw bar 57 and the right biography being fixed thereon Moving axis pin 58 drives main lever 52 to be rotated down around main lever axis 51 by right kidney slot 59, then by passing in the pulling of middle kidney slot Moving axis pin 53, pulling block 54, pull rod 6,10 downlink of jacking block, while compressed spring 8, the movable axis 21 being fixed on jacking block 10 follow top 10 downlink of block, the open end for pulling the left single-arm lever 31 being centered around on movable axis 21 simultaneously and right single-arm lever 37 open end Downlink, while pulling the lower end of left double-arm lever 34, right double-arm lever 35 mobile toward centre from the left and right sides, on left double-arm lever End drives left movable rack 12, right double-arm lever upper end to drive right movable rack 16 is past to leave 17 center of lifting device drive rack Direction it is mobile, until the free position in a bit of gap is kept completely separate and had with lifting device drive rack 17；Described one Segment gap refers to the gap 2~5mm；Adjusting nut group 9 is used for the pressure of adjustment spring 8, the lower end surface of 7 fixed spring 9 of bracket Extreme lower position；If there is abnormal conditions, such as the unexpected power down of lifting device or because lifting device overspeed protective device Action power dump or because lifting device reaches the limit of guarded by location device action and cuts off the power etc., lifting is set at this time For standby general supply immediately without electricity, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays a role system immediately Dynamic, after the completion of energy storage device delay, 56 power loss of electromagnetism puller main body disappears to the electromagnet pull of electromagnetic draw bar 57, jacking block 10 uplinks, left movable rack 12, right movable rack 16 and 17 positive engagement of drive rack, ensure that the safety of lifting device；Tightly Under anxious brake condition, left movable rack 12, right movable rack 16 may not have with drive rack 17 at the beginning it is at a fully engaged, least The situation of benefit when being braking as shown in Figure 4 may there is a situation where the highest points of rack gear and highest point contact, at this time in elastic force Friction catch is temporarily become under effect, if the braking moment of lifting device whole brake apparatus adds up and is enough to realize system at this time Dynamic, braking task is completed；If the braking moment of lifting device whole brake apparatus, which adds up, at this time is all not enough to prevent lifting Equipment glides, (because there is braking moment effect, just start glide can be slower), when slip down to be staggered highest point with most When the position of high point, left movable rack 12, right movable rack 16 will be squeezed into the tooth socket of drive rack 17 under elastic force promotion (referring to Fig. 5) continues to squeeze into then as continuing to glide, until left movable rack 12, right movable rack 16 and drive rack 17 Positive engagement implements braking；The electromagnetism puller, for the long-stroke push-and-pull electricity that a kind of selected working method is pulling mode Magnet is a kind of novel Electromagnetic Control actuator part, is powered on control conversion, high-power start, small-power dimension using power supply The working method held, the old-fashioned electromagnet volume of active force more onesize than generation is smaller, self weight is lighter, more power saving；Pass through thick stick Bar transformation, can be used the electromagnetic driver half of the thrust pushed directly on, with save the cost, energy saving.
The hand-operating unlocking mechanism, including, clasp nut control crank 23, clasp nut combination 24, drive screw 25, Worm screw control crank 26, worm type of reduction gearing 27, wherein clasp nut combination 24 with pulling block 9 be fixedly connected, drive screw 25 with the worm gear of worm type of reduction gearing 27 be fixedly connected, usually, clasp nut control crank 23 be placed in opens a sluice gate position, folding Nut combination 24 in state of opening a sluice gate, its box thread and the male thread of drive screw 25 without engage, 25 pairs of folding spiral shells of drive screw The movement of mother's combination 24 has no effect, thus movement of the hand-operating unlocking mechanism to electromagnetic lever leveling control safety catch Have no effect, when lifting device because have a power failure suddenly or other reason emergency brakings rest in cannot be with any one stop When the position of leveling, at this time clasp nut control crank 23 can be placed in closing position, make clasp nut combination 24 in close a floodgate State, its box thread normally engage with the male thread of drive screw 25, manual operation worm screw control crank 26, subtract worm and gear Fast device 27 rotates and drive screw 25 is driven to rotate, the transmission clasp nut of drive screw 25 combination 24 moves up, clasp nut 24 drive jacking block 10 of combination moves down, and the movable axis 21 being fixed on jacking block 10 follows 10 downlink of jacking block while pulling surrounds The open end of left single-arm lever 31 on movable axis 21 and the open end downlink of right single-arm lever 37, while pulling left both arms thick stick Bar 34, the lower end of right double-arm lever 35 are mobile toward centre from the left and right sides, and left double-arm lever upper end drives left movable rack 12, the right side It is mobile toward the direction for leaving 17 center of lifting device drive rack that double-arm lever upper end drives right movable rack 16, until with lifting Device drives rack gear 17 is kept completely separate and has the free position in a bit of gap；Then Manual jigger mechanism is used, lifting is set Standby nearest leveling；The hand-operating unlocking mechanism is necessarily placed at the position that securely and reliably cannot arbitrarily open, and has formulated regulations System and strictly implement, it is ensured that only have qualification, authorized personnel could open and use.
Fig. 6 is the movable rack schematic diagram for only producing the tooth form for the part being associated with drive rack of movable rack, To save material and mitigating self weight, the tooth of the movable rack tooth form only part of manufacturing activities rack gear being associated with drive rack Shape, part inside the close lifting device carriage in the direction facewidth B, part is not contacted with drive rack are omitted, (what Fig. 6 drew is right movable rack, and left movable rack and right movable rack are mirror symmetric figure) as shown in Figure 6, certainly, owns There is round-corner transition in tooth form root, to reduce stress concentration；The movable rack tooth form facewidth B should be greater than drive rack tooth It is wide.
Using each possible braking anchor point of lifting device of electromagnetic lever leveling control safety catch of the invention The distance between be the integral multiple of its drive rack tooth pitch (p=π m), therefore controlled configured with electromagnetic lever leveling of the invention The installation method of the lifting device of safety catch includes, when carrying out and install related civil construction early period, it is necessary to pass through Precise measurement is carried out to the difference in height of stop and stop, is constructed accordingly to each stop sill and accurately controls stop and layer The difference in height of plane is that the integral multiple of drive rack tooth pitch (p=π m) is permitted according to the regulation of GB/T10058 on sill between standing Perhaps error is ± 10mm (construction internally controlling requirement should be less than this error amount)；In lifting device installation, sliding tooth is correctly adjusted The position of item, so that lifting device just stops leveling accuracy from first layer and in median, then later stop leveling energy It enough meets the requirements, or even when other individual leveling element failures, also can guarantee stop leveling accuracy；And leveling Keep precision that can be much better than the requirement of ± 20mm as defined in GB/T10058.
Fig. 7 is a kind of independent electromagnetic that the rack-and-pinion lifting device electromagnetic lever leveling controls safety catch Lever leveling controls the schematic diagram of safety catch, and picture is the view for having shed bottom plate, the planar peripheral ruler of bottom plate in figure It is very little such as panel 49, unlike panel 49 its above there is no track window aperture 50, certain bottom plate must also have enough Load-bearing capacity；A kind of independent electromagnetic pulls leveling to control safety catch, including passes through supporting frame 48, installation The separate space that bottom plate, panel 49 surround, rail assembly, movable rack, movable rack in the separate space Operating mechanism, the control device of operating mechanism, middle transition load-supporting part component；The rail assembly includes upper rail 46 Horizontal rail, the track window aperture 50 formed with lower rail 47, the movable rack includes left movable rack 12, right movable rack 16；The operating mechanism of the movable rack, including, right transmission pivot pin 58, is set the right kidney slot 59 being arranged on main lever 52 Set the middle kidney slot 55 on main lever 52, pulling block 54, middle transmission pivot pin 53, main lever 52, the main thick stick being fixed on pulling block 54 Bar axis 51, 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 with the hinge component of left double-arm lever 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, described The control device of the operating mechanism of movable rack includes electromagnetic draw bar 57, electromagnetism puller main body 56, the electromagnetism puller Main body includes the electromagnetic system of electromagnetism puller, control system, and the control system of the electromagnetism puller is by lifting device electricity Control system power supply and control；It further include one in the control unit of the electromagnetism puller of the lifting device electric control system Only the relay that control by general supply perhaps contactor and the energy storage device relay controlled by general supply or connects The normally-closed contact of tentaculum is connected across between electromagnetism puller and energy storage device, and when lifting device obtains electric, normally-closed contact is disconnected, electromagnetism Connection between puller and energy storage device also disconnects, energy storage device energy storage；When lifting device power loss, other electricity-loss braking devices The power loss band brake apparatus carried including motor plays a role braking immediately, but electromagnetism puller not power loss immediately, described The only relay that control by general supply or contactor normally-closed contact power loss closure, make electromagnetism puller and energy storage device company It connects, energy storage device is that other electricity-loss braking devices are independent to delay time (discharge time) the constant design tuning of electromagnetism puller Complete the braking time and the difference of the movement total delay time of the operating mechanism of electromagnetism puller and movable rack that braking needs； For example, it is 3.5S that other electricity-loss braking devices of certain lifting device, which individually complete the braking time that braking needs, electromagnetism is pulled The movement total delay time of the operating mechanism of device and movable rack is 0.2S, then delay time of the energy storage device to electromagnetism puller Constant design tuning is (3.5S-0.2S=) 3.3S, after the completion of energy storage device delay, electromagnetism puller power loss；Work as lifting device (state after discharging including energy storage device energy after original state or power loss), lifting device are in when general supply is disconnected without electricity Stationary state；The operating mechanism course of work of movable rack is, when electromagnetism puller main body 56 is without electricity, to electromagnetic draw bar 57 Electromagnet pull disappears, and electromagnetic draw bar 57 passes through right kidney slot 59, main lever 52, middle waist with the right transmission pivot pin 58 being fixed thereon Shape hole 55, middle transmission pivot pin 53, pulling block 54, pull rod 6 are transferred to the pulling force of jacking block 10 also while disappearing, and jacking block 10 is by spring 8 Elastic force uplink and pull rod 6, pulling block 5 uplink together are driven, the movable axis 21 being fixed on jacking block 10 follows 10 uplink of jacking block, pushes away The open end of the dynamic left single-arm lever 31 being centered around on movable axis 21 and the open end uplink of right single-arm lever 37, drive left single armed Lever 31, the hinge component and right single-arm lever 37, right movable mandrel 36 and the right side of left movable mandrel 32 and left double-arm lever 34 are double The hinge component of arm bar 35 is rotated around fixing axle 33, left double-arm lever 34, right double-arm lever 35 lower end toward the left and right sides It opens, left double-arm lever upper end drives left movable rack 12, right double-arm lever upper end that right movable rack 16 is driven to drive toward lifting device 17 center position of carry-over bar is mobile, until the application position at a fully engaged with lifting device drive rack 17, to lifting device system It is dynamic；At the same time, electromagnetic draw bar 57 resets upwards under the action of electromagnetism puller internal reset mechanism, and arrival makes right transmission shaft The position of pin 58 and the right 59 top and bottom gap Jun You of kidney slot；When electromagnetism puller main body 56 must be electric, to electromagnetic draw bar 57 Electromagnet pull generates, electromagnetic draw bar 57 and the right transmission pivot pin 58 that is fixed thereon by right kidney slot 59 drive main lever 52 around Main lever axis 51 is rotated down, then by being driven pivot pin 53, pulling block 54, pull rod 6,10 downlink of jacking block in the pulling of middle kidney slot, together When compressed spring 8, the movable axis 21 being fixed on jacking block 10 follow 10 downlink of jacking block and meanwhile pulling be centered around on movable axis 21 The open end of left single-arm lever 31 and the open end downlink of right single-arm lever 37, while pulling left double-arm lever 34, right both arms thick stick The lower end of bar 35 is mobile toward centre from the left and right sides, and left double-arm lever upper end drives left movable rack 12, right double-arm lever upper end It is mobile toward the direction for leaving 17 center of lifting device drive rack to drive right movable rack 16, until with lifting device drive rack 17 are kept completely separate and have the free position in a bit of gap；The a bit of gap, refers to the gap 2~5mm；Adjusting nut group 9 are used for the pressure of adjustment spring 8, the extreme lower position of the lower end surface of 7 fixed spring 9 of bracket；The hand-operating unlocking mechanism, packet It includes, clasp nut control crank 23, clasp nut combine 24, drive screw 25, worm screw control crank 26, worm type of reduction gearing 27, wherein clasp nut combination 24 with pulling block 9 be fixedly connected, the worm gear of drive screw 25 and worm type of reduction gearing 27 is to consolidate Fixed connection, usual, clasp nut control crank 23, which is placed in, opens a sluice gate position, clasp nut combination 24 in state of opening a sluice gate, its female spiral shell Line has no effect with the movement that the male thread of drive screw 25 combines 24 to clasp nut without engagement, drive screw 25, thus Hand-operating unlocking mechanism has no effect to the movement of electromagnetic lever leveling control safety catch, when lifting device because suddenly Have a power failure or other reason emergency brakings rest in when cannot be with the position of any one stop leveling, at this time can be clasp nut Control crank 23 is placed in closing position, makes clasp nut combination 24 in "on" position, the public affairs of its box thread and drive screw 25 Screw thread normally engages, manual operation worm screw control crank 26, rotates worm type of reduction gearing 27 and drive 25 turns of drive screw Dynamic, the transmission clasp nut of drive screw 25 combination 24 moves up, 24 drive jacking blocks 10 of clasp nut combination move down, fixed In opening for the left single-arm lever 31 that the movable axis 21 on jacking block 10 follows 10 downlink of jacking block while pulling is centered around on movable axis 21 Put end and right single-arm lever 37 open end downlink, while pull left double-arm lever 34, right double-arm lever 35 lower end from left and right Two sides are mobile toward centre, and left double-arm lever upper end drives left movable rack 12, right double-arm lever upper end to drive right movable rack 16 It is mobile toward the direction for leaving 17 center of lifting device drive rack, until being kept completely separate with lifting device drive rack 17 and having one The free position in segment gap；Then Manual jigger mechanism is used, the nearest leveling of lifting device is made；The hand-operating unlocking mechanism It is necessarily placed at the position that securely and reliably cannot arbitrarily open, formulated rules and regulations and is strictly implemented, it is ensured that is only had Qualification, authorized personnel could open and use；A kind of independent electromagnetic lever leveling control safety arrestment dress It sets, the gear that the course of work is directly arranged on lifting device with one kind described in [0005] section, [0006] section, [0007] section Gear rack elevating installation electromagnetical lever leveling control safety catch is identical, and installation method is identical as described in [0007] section.
A kind of elevator, characterized in that be mounted with lifting device electromagnetic lever leveling control safety arrestment of the present invention Device, the lifting device electromagnetic lever leveling controls safety catch, including the electricity being directly arranged on lifting device Magnetic lever leveling controls safety catch, or the independent electromagnetic thick stick that component is separately provided, is then fitted on lifting device Bar leveling controls safety catch；All technical characteristics of the present invention are suitable for described being mounted with lifting of the present invention The elevator of installation electromagnetical lever leveling control safety catch.
The present invention pulls rack gear engagement system to carry out leveling control using electromagnetism, and leveling accuracy, which can achieve, to be better than The requirement of ± 10mm as defined in GB/T10058-2009, keep precision can achieve be much better than as defined in GB/T10058-2009 ± The requirement of 20mm；Safeguard protection braking is carried out using rack gear engagement system, existing friction catch mode is avoided and is likely to occur Because security risk caused by friction material abrasion or oil pollution etc., improves the reliability of safety arrestment；Even if meeting See that there is a situation where problems for driving gear, also can reliably brake, it is ensured that safety；Using lever change, can be used than directly pushing away The small electromagnetic driver of dynamic thrust, the safeguard protection that is significantly increased brake quality, improve runnability, is energy saving, saving The beneficial effect of cost.
Detailed description of the invention
Fig. 1 is a kind of structural representation of electromagnetic lever leveling control safety catch being directly arranged on lifting device Figure.
Fig. 2 is the schematic diagram that electromagnetic lever leveling described in Fig. 1 controls that safety catch is in free position state.
Fig. 3 is the A-A partial sectional view of Fig. 1.
Fig. 4 is highest point and the highest point contact condition schematic diagram that rack gear may occur when braking.
Fig. 5 is left movable rack, right movable rack is squeezed into the tooth socket of lifting device drive rack under elastic force promotion Schematic diagram.
Fig. 6 is the movable rack schematic diagram for only producing the tooth form for the part being associated with drive rack of movable rack.
Fig. 7 is the schematic diagram that a kind of independent electromagnetic lever leveling controls safety catch.
Fig. 8 is the schematic diagram of embodiment 1.
Fig. 9 is the lifting for being equipped with the lifting device electromagnetic lever leveling control safety catch of embodiment 1 Equipment is in the case where free position state schematic diagram.
Figure 10 is the schematic diagram of embodiment 2.
Figure 11 is the schematic diagram that electromagnetic lever leveling controls when safety catch is in free position in embodiment 2.
Specific embodiment
Embodiment 1, Fig. 8 be embodiment 1 schematic diagram, drawing show be lifting device side appearance, the electromagnetism The case where lever leveling control safety catch is mounted on pinion and-rack lifting device temporarily in on-position, Fig. 9 It is the lifting device for being equipped with the lifting device electromagnetic lever leveling control safety catch of embodiment 1 in freely Location status, lifting device prepare operation or the situation schematic diagram in being currently running, (left and right described in the figure of front, be from See that Fig. 8, Fig. 9 are to see from the outside toward lifting device side, so left and right directions is just toward lifting device side inside lifting device Reverse phase), the lifting device electromagnetic lever leveling control safety catch is closely connected with lifting device load-carrying members, directly Contact passes through the load-bearing of middle transition component contact, electromagnetic lever leveling control its internal junction of safety catch of use Structure each section forms and what is acted on illustrates as shown in Fig. 1~6, and described in [0005] section, [0006] section, [0007] section, due to It is related to the matching coordinative of multiple transmission systems, so should be specifically noted that manufacturing quality and installation quality in manufacture and installation, wraps Including must be ready-made including accurately controlling the difference in height of plane on sill between stop and stop as driving described in [0008] section The related work of integral multiple of the rack tooth away from (p=π m) could trial operation after guaranteeing that necessary precision, detection are qualified；Lifting is set For standby electric control system using embedded system as master control system, the course of work is when system is without electricity including to disconnect Power switch or accidental power failure etc. make the disconnection of lifting device general supply, 56 power loss of electromagnetism puller main body, draw electromagnetism The electromagnet pull of bar 57 disappears, and electromagnetic draw bar 57 passes through right kidney slot 59, main lever with the right transmission pivot pin 58 being fixed thereon 52, middle kidney slot 55, middle transmission pivot pin 53, pulling block 54, pull rod 6 are transferred to the pulling force of jacking block 10 also while disappearing, jacking block 10 by The elastic force uplink of spring 8 and pull rod 6, pulling block 54 uplink together are driven, the movable axis 21 being fixed on jacking block 10 follows jacking block 10 uplinks, the open end uplink of the open end for the left single-arm lever 31 being driven around on movable axis 21 and right single-arm lever 37, Drive the hinge component and right single-arm lever 37, right slide core of left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34 The hinge component of axis 36 and right double-arm lever 35 is rotated around fixing axle 33, and left double-arm lever 34, the lower end of right double-arm lever 35 are past The left and right sides is opened, and left double-arm lever upper end drives left movable rack 12, right double-arm lever upper end to drive right movable rack 16 past 17 center position of lifting device drive rack is mobile, until the application position at a fully engaged with lifting device drive rack 17, right Lifting device braking；At the same time, electromagnetic draw bar 57 resets upwards under the action of electromagnetism puller internal reset mechanism, reaches Make the position of right transmission pivot pin 58 and the right 59 top and bottom gap Jun You of kidney slot；When lifting device prepares to start, lifting device Electric control system control lifting device drive system driving lifting device move up a distance element, make load-supporting part And the lower plane of upper rail 15 and the upper plane of right movable rack 16 and left movable rack 12 have a microgap, the microgap Numerical value be left movable rack 12,0.2~0.6 times of right movable rack 16 and 17 sideshake of lifting device drive rack；Then it rises The electric control system control electromagnetism puller main body 56 for dropping equipment obtains electric electromagnet pull generation to electromagnetic draw bar 57, electromagnetism Pull rod 57 and the right transmission pivot pin 58 that is fixed thereon drive main lever 52 around main lever axis 51 to backspin by right kidney slot 59 Turn, then by being driven pivot pin 53, pulling block 54, pull rod 6,10 downlink of jacking block, while compressed spring 8 in the pulling of middle kidney slot, it is fixed In opening for the left single-arm lever 31 that the movable axis 21 on jacking block 10 follows 10 downlink of jacking block while pulling is centered around on movable axis 21 Put end and right single-arm lever 37 open end downlink, while pull left double-arm lever 34, right double-arm lever 35 lower end from left and right Two sides are mobile toward centre, and left double-arm lever upper end drives left movable rack 12, right double-arm lever upper end to drive right movable rack 16 It is mobile toward the direction for leaving 17 center of lifting device drive rack, until being kept completely separate with lifting device drive rack 17 and having one The free position in segment gap；The a bit of gap, refers to the gap 2~5mm；Adjusting nut group 9 is for adjustment spring 8 Pressure, the extreme lower position of the lower end surface of 7 fixed spring 9 of bracket；If there is abnormal conditions, such as the unexpected power down of lifting device, Or guarded by location device is reached the limit of because of lifting device overspeed protective device action power dump or because of lifting device Action power dump etc., for lifting device general supply immediately without electricity, other electricity-loss braking devices include that motor is included at this time Power loss band brake apparatus plays a role braking immediately, after the completion of energy storage device delay, 56 power loss of electromagnetism puller main body, to electromagnetism The electromagnet pull disappearance of pull rod 57,10 uplink of jacking block, left movable rack 12, right movable rack 16 are reliably nibbled with drive rack 17 It closes, ensure that the safety of lifting device；When lifting device because have a power failure suddenly or other reason emergency brakings rest in cannot When with the position of any one stop leveling, at this time clasp nut control crank 23 can be placed in closing position, make clasp nut Combination 24 is in "on" position, its box thread is normally engaged with the male thread of drive screw 25, manual operation worm screw control crank 26, make worm type of reduction gearing 27 rotate and drive drive screw 25 rotation, drive screw 25 be driven clasp nut combination 24 to Upper movement, 24 drive jacking block 10 of clasp nut combination move down, and the movable axis 21 being fixed on jacking block 10 follows under jacking block 10 Row pulls the open end for the left single-arm lever 31 being centered around on movable axis 21 and the open end downlink of right single-arm lever 37 simultaneously, Pull the lower end of left double-arm lever 34, right double-arm lever 35 from the left and right sides toward centre movement, left double-arm lever upper end band simultaneously Move left movable rack 12, right double-arm lever upper end drives right movable rack 16 toward the side for leaving 17 center of lifting device drive rack To movement, until the free position in a bit of gap is kept completely separate and had with lifting device drive rack 17；Then using manual Barring mechanism makes the nearest leveling of lifting device；The hand-operating unlocking mechanism, which is necessarily placed at, securely and reliably cannot arbitrarily open Position, formulated rules and regulations and strictly implemented, it is ensured that only have a qualification, authorized personnel could open and It uses.
Embodiment 2 is a kind of to be equipped with lifting device electromagnetic lever leveling of the present invention and control safety catch Lifting device, Figure 10 is the schematic diagram of embodiment 2, it is shown that electromagnetism puller main body 56 is in power failure state, electromagnetic lever Leveling controls the case where when safety catch is implemented to brake, and Figure 11 is in embodiment 2 when electromagnetism puller main body 56 is in Electricity condition, electromagnetic lever leveling control safety catch are in schematic diagram when free position state, the rack-and-pinion of use It is that one kind is separately provided stand-alone assembly, is then fitted into that lifting device electromagnetic lever leveling, which controls safety catch specific structure, Independent electromagnetic lever leveling on lifting device control safety catch component, structure & working mechanism and Fig. 7 with [0009] section is described identical；Due to being related to the matching coordinative of multiple transmission systems, so should be specifically noted that in manufacture and installation Manufacturing quality and installation quality, including must ready-made include accurately controlling sill between stop and stop described in [0008] section The difference in height of upper plane is the related work of the integral multiple of drive rack tooth pitch (p=π m), guarantees necessary precision, and detection is qualified It afterwards, could trial operation；Using embedded system as master control system, the course of work is the electric control system of lifting device, When system is without electricity including disconnecting power switch or accidental power failure etc. disconnect lifting device general supply, electromagnetism pulls 56 power loss of device main body disappears to the electromagnet pull of electromagnetic draw bar 57, electromagnetic draw bar 57 and the right transmission pivot pin 58 being fixed thereon The drawing of jacking block 10 is transferred to by right kidney slot 59, main lever 52, middle kidney slot 55, middle transmission pivot pin 53, pulling block 54, pull rod 6 Power also disappears simultaneously, jacking block 10 by spring 8 elastic force uplink and drive pull rod 6, pulling block 54 uplink together, be fixed on jacking block 10 On movable axis 21 follow 10 uplink of jacking block, the open end for the left single-arm lever 31 being driven around on movable axis 21 and right single armed The open end uplink of lever 37 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 lower end of right double-arm lever 35 is opened toward the left and right sides, and left double-arm lever upper end drives left movable rack 12, on right double-arm lever It is mobile toward 17 center position of lifting device drive rack that end drives right movable rack 16, until complete with lifting device drive rack 17 The application position engaged entirely brakes lifting device；At the same time, electromagnetic draw bar 57 is in electromagnetism puller internal reset mechanism Effect is lower to be resetted upwards, reaches the position for making right transmission pivot pin 58 and the right 59 top and bottom gap Jun You of kidney slot；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 15 and right movable rack 16 and left movable rack 12 have one Microgap, the numerical value of the microgap are left movable rack 12, right movable rack 16 and 17 sideshake of lifting device drive rack 0.2~0.6 times；Then the electric control system control electromagnetism puller main body 56 of lifting device obtains electric, to electromagnetic draw bar 57 Electromagnet pull generate, electromagnetic draw bar 57 drives main lever 52 by right kidney slot 59 with the right transmission pivot pin 58 that is fixed thereon It is rotated down around main lever axis 51, then by being driven pivot pin 53, pulling block 54, pull rod 6,10 downlink of jacking block in the pulling of middle kidney slot, Compressed spring 8 simultaneously, the movable axis 21 being fixed on jacking block 10 follows 10 downlink of jacking block while pulling is centered around on movable axis 21 Left single-arm lever 31 open end and right single-arm lever 37 open end downlink, while pulling left double-arm lever 34, right both arms The lower end of lever 35 is mobile toward centre from the left and right sides, and left double-arm lever upper end drives left movable rack 12, on right double-arm lever It is mobile toward the direction for leaving 17 center of lifting device drive rack that end drives right movable rack 16, until with lifting device sliding tooth Item 17 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 lower end surface of 7 fixed spring 9 of bracket；If there is abnormal conditions, such as The unexpected power down of lifting device or because lifting device overspeed protective device action power dump or because lifting device arrive Up to extreme position protective device action power dump etc., lifting device general supply is immediately without electricity, other power loss braking dresses at this time The power loss band brake apparatus carried including motor is set to play a role immediately braking, after the completion of energy storage device delay, electromagnetism pulling 1 power loss of device main body, to the electromagnet pull disappearance of electromagnetic draw bar 2,10 uplink of jacking block, left movable rack 12, right movable rack 16 with 17 positive engagement of drive rack, ensure that the safety of lifting device；When lifting device because power failure or other reasons are tight suddenly Anxious braking rests in when cannot be with the position of any one stop leveling, clasp nut control crank 23 can be placed in combined floodgate at this time Position engages clasp nut combination 24 normally with the male thread of drive screw 25 in "on" position, its box thread, artificial behaviour Make worm screw control crank 26, rotate worm type of reduction gearing 27 and drive the rotation of drive screw 25, the transmission of drive screw 25 to open Conjunction nut combination 24 moves up, 24 drive jacking blocks 10 of clasp nut combination move down, the movable axis being fixed on jacking block 10 21 follow 10 downlink of jacking block while pulling open end and the right single-arm lever 37 of the left single-arm lever 31 being centered around on movable axis 21 Open end downlink, while pull left double-arm lever 34, right double-arm lever 35 lower end from the left and right sides toward centre mobile, Zuo Shuan Arm bar upper end drives left movable rack 12, right double-arm lever upper end to drive right movable rack 16 is past to leave lifting device sliding tooth The direction at 17 center of item is mobile, until the free position in a bit of gap is kept completely separate and had with lifting device drive rack 17； Then Manual jigger mechanism is used, the nearest leveling of lifting device is made；The hand-operating unlocking mechanism is necessarily placed at securely and reliably It has formulated rules and regulations and has strictly implemented in the position that cannot arbitrarily open, it is ensured that only had qualification, authorized people Member could open and use.
Embodiment 3, it is a kind of to be mounted with that the electromagnetic lever leveling being directly arranged on lifting device controls safety catch The elevator of component, outside drawing same Fig. 8, Fig. 9, working principle and [0023] section are described identical.
Embodiment 4, it is a kind of to be mounted with electromagnetic lever leveling control safety catch, the control of independent electromagnetic lever leveling The elevator of safety catch component, outside drawing same Figure 10, Figure 11, working principle and [0024] section are described identical
Understand that the present invention, this specification illustrate some specific structures and data to be conducive to reader, these are all In order to illustrate and non-limiting, the various changes done within the scope of the basic thought of the claims in the present invention, replacement and change institute All or part of equivalent of generation, all within the scope of the invention as claimed.

Claims (7)

1. a kind of lifting device electromagnetic lever leveling controls safety catch, including, load-supporting part, rail assembly, movable teeth Item, the position-limit mechanism of movable rack, the operating mechanism of movable rack, the control device of the operating mechanism of movable rack, manual solution Latch mechanism；The load-supporting part includes direct load-supporting part or middle transition load-supporting part；The rail assembly includes The horizontal rail that upper rail, lower rail are formed, track window aperture；Movable rack passes through track window aperture, and the movable rack includes Left movable rack and right movable rack, the tooth form for the part of movable rack being associated with drive rack are in and can set with lifting Standby drive rack engages perhaps isolated position by moving horizontally in the horizontal rail of rail assembly or being maintained at certain It realizes and the engagement of drive rack or separates, the position of the determination on determining position a bit, including driven with lifting device The application position of carry-over bar engagement or the free position that one section of gap is kept completely separate and had with lifting device drive rack, Described has one section of gap, refers to that drive rack and movable rack tooth top interplanar corresponding thereto have the >=distance of 2mm；It is described Movable rack position-limit mechanism, including, the inner face either above or below for the part of movable rack being associated with guide rail is extremely A rare direction is provided with guiding notch, guide groove is collectively formed with a part of movable rack cover board, guide plate a part is solid Be scheduled in horizontal rail, a part enters guide groove, the mating part of guide groove and guide plate is dynamic cooperation, to prevent movable teeth Outside or inside play of the item to carriage；Load receiving part at the top of movable rack after entering on-position with lifting device carriage Part directly contacts or contacts load-bearing by middle transition load-supporting part；The operating mechanism manipulation activities rack gear of movable rack is in-orbit It moves horizontally or stops on road component on the position for being maintained at certain determinations, the control of the operating mechanism of the movable rack Device includes electromagnetism puller and its control system, and the control system of the electromagnetism puller is by lifting device electric-control system Power supply and control；The lifting device electromagnetic lever leveling controls safety catch, including directly in lifting device carriage The electromagnetic lever leveling of upper setting controls safety catch component, or stand-alone assembly is separately provided, is then fitted into lifting Independent electromagnetic lever leveling in equipment controls safety catch component；
The lifting device electromagnetic lever leveling control safety catch that described one kind is directly arranged in lifting device carriage Component, including load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, work Control device, the hand-operating unlocking mechanism of the operating mechanism of carry-over bar；The load-supporting part includes upper rail and main load-supporting part；Institute The rail assembly stated includes track window aperture, upper rail and main load-supporting part and the horizontal rail that lower rail is formed；The movable teeth Item includes right movable rack and left movable rack, and the right movable rack and left movable rack pass through track window aperture, activity The tooth form of the part of rack gear being associated with drive rack, which is in, can engage or separate with the drive rack of lifting device Position, is realized on the position by the way that certain determinations are moved horizontally or be maintained in the horizontal rail of rail assembly and sliding tooth It is simultaneous with the upper rail of lift car after entering on-position at the top of the engagement or separation of item, right movable rack and left movable rack Main load-supporting part directly contacts load-bearing, and the fit system of movable rack and horizontal rail is dynamic cooperation, and contact surface is smooth low Coefficient of friction surfaces, to be conducive to the movement of movable rack；The position-limit mechanism of the movable rack, including, movable rack with It is provided with guiding notch above the inner face of a part that guide rail is associated, guiding is collectively formed with a part of movable rack cover board Slot, guide plate a part is fixed in horizontal rail, a part enters guide groove, and the mating part of guide groove and guide plate is Cooperation, to prevent outside or inside play of the movable rack to carriage；The operating mechanism of the movable rack, including, it is right Transmission pivot pin, the middle kidney slot being arranged on main lever, pulling block, is fixed on pulling block the right kidney slot being arranged on main lever Middle transmission pivot pin, main lever, main lever axis, pull rod, bracket, spring, adjusting nut group, jacking block, movable axis, left single armed thick stick The hinge component of bar, left movable mandrel and left double-arm lever, the hinge set of right single-arm lever, right movable mandrel and right double-arm lever Part, fixing axle；The operating mechanism course of work of movable rack is controlled by the control device of the operating mechanism of movable rack, described The control device of the operating mechanism of movable rack includes electromagnetic draw bar, electromagnetism puller main body, the electromagnetism puller main body The control system of control system including electromagnetism puller, the electromagnetism puller is powered and is controlled by lifting device electric-control system System；In the control unit of the electromagnetism puller of the lifting device electric control system further include one only to be controlled by general supply Relay perhaps contactor and the energy storage device normally-closed contact of relay or contactor only controlled by general supply It is connected across between electromagnetism puller and energy storage device, when lifting device obtains electric, normally-closed contact is disconnected, electromagnetism puller and energy storage dress Connection between setting also disconnects, energy storage device energy storage；When lifting device power loss, other electricity-loss braking devices include that motor is included Power loss band brake apparatus play a role immediately braking, but electromagnetism puller not power loss immediately is described only by general supply control The relay or contactor normally-closed contact power loss of system are closed, and connect electromagnetism puller with energy storage device, energy storage device is to electricity The delay time constant design tuning of magnetic puller be other electricity-loss braking devices individually completes braking need braking time and The difference of the movement total delay time of the operating mechanism of electromagnetism puller and 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 operating mechanism of movable rack The course of work is, when electromagnetism puller main body power loss, disappears to the electromagnet pull of electromagnetic draw bar, electromagnetic draw bar and is fixed on it On right transmission pivot pin pass through right kidney slot, main lever, middle kidney slot, middle transmission pivot pin, pulling block, pull rod are transferred to the drawing of jacking block Power also disappears simultaneously, jacking block by spring elastic force uplink and drive pull rod, pulling block uplink together, the activity being fixed on jacking block On the open end of left single-arm lever and the open end of right single-arm lever that axis follows jacking block uplink, is driven around on movable axis Row, drive left single-arm lever, the hinge component of left movable mandrel and left double-arm lever and right single-arm lever, right movable mandrel with The hinge component of right double-arm lever, around fixing axle rotate, left double-arm lever, right double-arm lever lower end toward the left and right sides open, Left double-arm lever upper end drives left movable rack, right double-arm lever upper end to drive right movable rack into lifting device drive rack Heart direction is mobile, until the application position at a fully engaged with lifting device drive rack, brakes lifting device；At the same time, Electromagnetic draw bar resets upwards under the action of electromagnetism puller internal reset mechanism, and arrival makes on right transmission pivot pin and right kidney slot There is the position in gap below；When electromagnetism puller main body obtains electric, the electromagnet pull of electromagnetic draw bar is generated, electromagnetic draw bar with The right transmission pivot pin being fixed thereon drives main lever to be rotated down around main lever axis by right kidney slot, then passes through middle kidney slot Pivot pin, pulling block, pull rod, jacking block downlink are driven in pulling, while compressed spring, the movable axis being fixed on jacking block follow under jacking block Row pulls the open end for the left single-arm lever being centered around on movable axis and the open end downlink of right single-arm lever simultaneously, draws simultaneously Move left double-arm lever, the lower end of right double-arm lever is moved from the left and right sides toward centre, the left movable teeth of left double-arm lever upper end drive It is mobile toward the direction for leaving lifting device drive rack center that item, right double-arm lever upper end drive right movable rack, until with liter Drop device drives rack gear is kept completely separate and has the free position in a bit of gap；The a bit of gap refers between 2~5mm Gap；Adjusting nut group is used for the pressure of adjustment spring, the extreme lower position of the lower end surface of bracket fixed spring；If there is abnormal feelings Condition, including the unexpected power down of lifting device or because lifting device overspeed protective device action power dump or because lifting Equipment reaches the limit of guarded by location device action and cuts off the power, and lifting device general supply is immediately without electricity, other power loss brakings at this time Device includes that the included power loss band brake apparatus of motor plays a role braking, after the completion of energy storage device delay, electromagnetism drawing immediately Dynamic device main body power loss, to the electromagnet pull disappearance of electromagnetic draw bar, jacking block uplink, left movable rack, right movable rack and sliding tooth Positive engagement, ensure that the safety of lifting device；It is pulling mode that the electromagnetism puller, which is a kind of selected working method, Long-stroke push-and-pull electromagnet, using power supply be powered on control conversion, high-power start, small-power maintain working method.
2. lifting device electromagnetic lever leveling according to claim 1 controls safety catch, characterized in that described Hand-operating unlocking mechanism, including, clasp nut control crank, clasp nut combination, drive screw, worm screw control crank, worm gear snail Bar retarder, wherein clasp nut combination with pulling block be fixedly connected, the worm gear of drive screw and worm type of reduction gearing is to consolidate Fixed connection, 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 with The male thread of drive screw has no effect without the movement that engagement, drive screw combine clasp nut, thus manual unlocking machine Structure to electromagnetic lever leveling control safety catch movement have no effect, when lifting device because suddenly have a power failure or its Its reason emergency braking is rested in when cannot be with the position of any one stop leveling, clasp nut control crank can be set at this time In closing position, engage clasp nut combination normally with the male thread of drive screw in "on" position, its box thread, artificial Operation worm screw control crank rotates worm type of reduction gearing and drives drive screw rotation, drive screw transmission clasp nut Combination move up, clasp nut combination drive pulling block move up, the movable axis being fixed on pulling block follow 9 uplink of pulling block, Lever left, right lever lower arm is driven to rotate around left fixed shaft, right fixed shaft toward inside, lever left, the upper arm drive of right lever are left Movable rack, right movable rack are mobile toward the direction for leaving lifting device drive rack center, until with lifting device sliding tooth Item is kept completely separate and has the free position in a bit of gap；Then Manual jigger mechanism is used, the nearest leveling of lifting device is made；Institute The hand-operating unlocking mechanism stated is necessarily placed at the position that securely and reliably cannot arbitrarily open, and has formulated rules and regulations and stringent reality It applies, it is ensured that only have qualification, authorized personnel could open and use.
3. lifting device electromagnetic lever leveling according to claim 1 controls safety catch, characterized in that movable teeth The tooth form of the tooth form only part of manufacturing activities rack gear being associated with drive rack, the close lifting device along the direction facewidth B The part that inside carriage, part is not contacted with drive rack is omitted, and there are round-corner transition in all tooth form roots, to subtract Few stress is concentrated；The movable rack tooth form facewidth B should be greater than the drive rack facewidth.
4. lifting device electromagnetic lever leveling according to claim 1 controls safety catch, characterized in that configuring When having lifting device installation civil construction early period of electromagnetic lever leveling control safety catch of the invention, 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 drive rack tooth pitch integral multiple, it is correct to adjust lifting and sets in lifting device installation Standby working in coordination with drive rack, so that lifting device just stops leveling accuracy from first layer and in median.
5. lifting device electromagnetic lever leveling according to claim 1 controls safety catch, characterized in that described A kind of independent electromagnetic lever leveling control safety catch group of lifting device electromagnetic lever leveling control safety catch Part, the load-bearing including the separate space surrounded by supporting frame, mounting base, panel, in the separate space Component, rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, movable rack manipulation machine Control device, the hand-operating unlocking mechanism of structure；The load-supporting part is supporting frame, belongs to a kind of middle transition load-supporting part Component, is bolted or other connection types are connect with the load-carrying members of lifting device carriage；The rail assembly Including horizontal rail, track window aperture that upper rail and lower rail are formed, the movable rack includes left movable rack, right movable teeth Item；The operating mechanism of the movable rack, including, right transmission pivot pin, is arranged in master the right kidney slot being arranged on main lever Middle kidney slot, pulling block on lever, middle transmission pivot pin, main lever, main lever axis, pull rod, the bracket, bullet being fixed on pulling block Spring, adjusting nut group, jacking block, movable axis, the hinge component of left single-arm lever, left movable mandrel and left double-arm lever, right single armed The hinge component of lever, right movable mandrel and right double-arm lever, fixing axle；The operating mechanism course of work of movable rack is by activity The control device of the operating mechanism of rack gear controls, and the control device of the operating mechanism of the movable rack includes, electromagnetic draw bar, Electromagnetism puller main body, the electromagnetism puller main body include the control system of electromagnetism puller, the electromagnetism puller Control system powered and controlled by lifting device electric-control system；The electromagnetism puller of the lifting device electric control system Control unit in further include the only relay that control by general supply or a contactor and energy storage device, described by total The relay of power supply control or the normally-closed contact of contactor are connected across between electromagnetism puller and energy storage device, and lifting device obtains When electric, normally-closed contact is disconnected, and the connection between electromagnetism puller and energy storage device also disconnects, energy storage device energy storage；Lifting device When power loss, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays a role braking immediately, but electromagnetism Power loss, the relay only controlled by general supply or contactor normally-closed contact power loss are not closed, make puller immediately Electromagnetism puller is connect with energy storage device, and energy storage device is other power loss to the delay time constant design tuning of electromagnetism puller Brake apparatus individually completes the braking time that braking needs and the movement of electromagnetism puller and the operating mechanism of movable rack is always prolonged The difference of slow time；After the completion of energy storage device delay, electromagnetism puller power loss；When lifting device general supply is disconnected without electricity, rise Drop equipment remains static；The operating mechanism course of work of movable rack is, when electromagnetism puller main body power loss, to electromagnetism The electromagnet pull of pull rod disappears, and electromagnetic draw bar and the right transmission pivot pin being fixed thereon pass through right kidney slot, main lever, middle kidney-shaped Hole, middle transmission pivot pin, pulling block, pull rod are transferred to the pulling force of jacking block also while disappearing, elastic force uplink and band of the jacking block by spring Dynamic pull rod, pulling block uplink together, the movable axis being fixed on jacking block follows jacking block uplink, the left list being driven around on movable axis The open end uplink 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, around fixing axle rotation, left both arms Lever, right double-arm lever lower end opened toward the left and right sides, left double-arm lever upper end drives left movable rack, on right double-arm lever It is mobile toward lifting device drive rack center position that end drives right movable rack, until at a fully engaged with lifting device drive rack Application position, to lifting device brake；At the same time, electromagnetic draw bar under the action of electromagnetism puller internal reset mechanism to Upper reset reaches the position for making right transmission pivot pin and the right kidney slot top and bottom gap Jun You；When electromagnetism puller main body obtains electric, The electromagnet pull of electromagnetic draw bar is generated, electromagnetic draw bar drives main thick stick by right kidney slot with the right transmission pivot pin being fixed thereon Bar is rotated down around main lever axis, then by being driven pivot pin, pulling block, pull rod, jacking block downlink in the pulling of middle kidney slot, is compressed simultaneously Spring, the left single-arm lever that the movable axis being fixed on jacking block follows jacking block downlink while pulling is centered around on movable axis are opened The open end downlink of end and right single-arm lever is put, while pulling left double-arm lever, the lower end of right double-arm lever past from the left and right sides Centre is mobile, and left double-arm lever upper end drives left movable rack, right double-arm lever upper end to drive right movable rack is past to leave lifting The direction at device drives rack gear center is mobile, until the freedom in a bit of gap is kept completely separate and had with lifting device drive rack Position；The a bit of gap, refers to the gap 2~5mm；Adjusting nut group is used for the pressure of adjustment spring, the fixed bullet of bracket The extreme lower position of the lower end surface of spring；If there is abnormal conditions, including the unexpected power down of lifting device or because lifting device is super Fast protective device action power dump or because lifting device reaches the limit of guarded by location device action and cuts off the power, at this time For lifting device general supply immediately without electricity, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays work immediately With braking, after the completion of energy storage device delay, electromagnetism puller main body power loss disappears to the electromagnet pull of electromagnetic draw bar, jacking block Uplink, left movable rack, right movable rack and drive rack positive engagement, ensure that the safety of lifting device；The electromagnetism Puller, is the long-stroke push-and-pull electromagnet of pulling mode for a kind of selected working method, is powered on control conversion, big function using power supply Rate starting, the working method that small-power maintains.
6. lifting device electromagnetic lever leveling according to claim 1 controls safety catch, characterized in that described The control system of electromagnetism puller is powered and is controlled by lifting device electric-control system, includes walking in rate-determining steps control as follows Suddenly, when lifting device prepares to start, the electric control system control lifting device drive system driving lifting of lifting device is set It is standby to move up a distance element, so that the lower plane of load-supporting part and the upper plane of right movable rack and left movable rack is had one Microgap, the numerical value of the microgap be left movable rack, right movable rack and lifting device drive rack sideshake 0.2~ 0.6 times；Then control electromagnetism puller main body obtains electric.
7. a kind of elevator, characterized in that install and use lifting described in any claim in claim 1- claim 6 and set Standby electromagnetic lever leveling controls safety catch.
CN201611221129.0A 2016-12-27 2016-12-27 Lifting device electromagnetic lever leveling controls safety catch Active CN106744143B (en)

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US7909142B2 (en) * 2006-05-19 2011-03-22 Hydro-Mobile Inc. Braking device for elevating platform assembly
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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
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