CN106829680B

CN106829680B - Rack-and-pinion lifting device electromagnetism pulls leveling to control safety catch

Info

Publication number: CN106829680B
Application number: CN201611221139.4A
Authority: CN
Inventors: 廖忠民
Original assignee: Individual
Current assignee: Tianjin Jinhang Computing Technology Research Institute
Priority date: 2016-12-27
Filing date: 2016-12-27
Publication date: 2018-12-11
Anticipated expiration: 2036-12-27
Also published as: CN106829680A

Abstract

A kind of rack-and-pinion lifting device electromagnetism pulling 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 rack gear engagement system, plays and significantly improves leveling accuracy and keep precision, and improve the beneficial effect of safeguard protection braking quality.

Description

Rack-and-pinion lifting device electromagnetism pulls leveling to control 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 rack-and-pinion Lifting device electromagnetism pulls leveling to control safety catch.

Background technique

The leveling control of existing rack-and-pinion lifting device is to continue to use detecting by sensor for traction-type lifting device The method of electrical control friction catch is cooperated to realize, and performance drift and friction member friction system due to detection control element Several variations, langding accuracy can change；The characteristics of indeed according to pinion and-rack lifting device itself, there can be leveling The leveling control measure for keeping precision more stable；The safety arrestment measure of existing pinion and-rack lifting device, either By braking to motor shaft or being realized by the method for the braking to gear shaft, these methods belong to friction catch side There is security risk caused by may be because friction material abrasion or oil pollution etc., in addition if driving gear in formula Problem, then method above-mentioned is with regard to helpless, and gear is driven to occur what problem was possible to, therefore, to improve safety Can, pinion and-rack lifting device, which must configure reliably to cope with, to be occurred problem including driving gear and asks similar to safety The safety catch of topic.

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.

A kind of rack-and-pinion lifting device electromagnetism pulling leveling control safety catch (hereinafter referred to as electromagnetism pulling leveling Control safety catch), including, load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, movable rack Operating mechanism, movable rack operating mechanism control device, hand-operating unlocking mechanism；The load-supporting part includes directly holding Heavy parts or middle transition load-supporting part；The rail assembly (referring to Fig. 1) includes upper rail 15 (in Fig. 1 and load receiving part Part), lower rail 18 formed horizontal rail, track window aperture 11；Movable rack passes through track window aperture 11, the movable rack Including left movable rack 12 and right movable rack 16, the tooth form for the part of movable rack being associated with drive rack 17 is in can With with the drive rack 17 of lifting device engagement or isolated position, by being moved horizontally in the horizontal rail of rail assembly It is either maintained on the position of certain determinations and realizes and the engagement of drive rack or separate, the position of the determination, including The application position (referring to Fig. 1) that is engaged with lifting device drive rack or be kept completely separate with lifting device drive rack and There is the free position (referring to fig. 2) in one section of gap, described has one section of gap, refers to drive rack and movable teeth corresponding thereto Tooth top interplanar has >=distance of 2mm；The position-limit mechanism of the movable rack, including, movable rack is connected with guide rail At least one direction of the inner face either above or below of the part of system is provided with guiding notch, (referring to Fig. 3), with movable rack lid Guide groove 28 is collectively formed in a part of plate (left cover 13, right cover plate are dismantled not have and be drawn), and 29 a part of guide plate is fixed on In horizontal rail, a part enter guide groove 28, the mating part of guide groove 28 and guide plate 29 is dynamic cooperation, to prevent activity Outside or inside play of the rack gear to carriage；Load-bearing at the top of movable rack after entering on-position with lifting device carriage It (is that load-supporting part and upper rail 15 directly contact in Fig. 1 that component, which directly contacts or contacts load-bearing by middle transition load-supporting part, Load-bearing)；The operating mechanism manipulation activities rack gear of movable rack, which is moved horizontally or stopped on orbit hole, is maintained at certain determinations Position on, the control device of the operating mechanism of the movable rack includes electromagnetism puller and its control system, described The control system of electromagnetism puller is powered and is controlled by lifting device electric-control system；The lifting device electromagnetism pulls leveling control Safety catch processed, the electromagnetism including being directly arranged in lifting device carriage pull leveling control safety catch, or The independent electromagnetic pulling leveling control safety catch that person is separately provided component, is then fitted on lifting device.

Fig. 1 is a kind of lifting device electromagnetism pulling 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 17, 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 the pulling rack-and-pinion safety catch of electromagnetism 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, it is driven pivot pin 4, pulling block 5, kidney slot 3, pull rod 6, bracket 7, spring 8, adjusting nut group 9, jacking block 10, the movable axis 21 being arranged on pulling block 5, left single armed The hinge component of lever 31, left movable mandrel 32 and left double-arm lever 34, right single-arm lever 37, right movable mandrel 36 and right both arms The hinge component of lever 35, fixing axle 33；The operating mechanism course of work of movable rack by movable rack operating mechanism control Device control processed, the control device of the operating mechanism of the movable rack include, electromagnetic draw bar 2, electromagnetism puller main body 1, The electromagnetism puller main body includes the electromagnetic system of electromagnetism puller, control system, the control of the electromagnetism puller System is powered and is controlled by lifting device electric control system；The electromagnetism puller of the lifting device electric control system It further include the only relay that control by general supply or a contactor and energy storage device in control unit, described by total electricity The relay of source control or the normally-closed contact of contactor are connected across between electromagnetism puller and energy storage device, and lifting device obtains electric When, normally-closed contact disconnects, and the connection between electromagnetism puller and energy storage device also disconnects, energy storage device energy storage；Lifting device loses When electric, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays a role braking immediately, but electromagnetism drawing Power loss, the relay only controlled by general supply or contactor normally-closed contact power loss are not closed dynamic device immediately, make electricity Magnetic puller is connect with energy storage device, and energy storage device is to delay time (discharge time) constant design tuning of electromagnetism puller Other electricity-loss braking devices individually complete the operating mechanism of the braking time that braking needs and electromagnetism puller and movable rack Act the difference of total delay time；For example, other electricity-loss braking devices of certain lifting device individually complete the system that braking needs The time 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 Delay time constant design tuning to electromagnetism puller is (3.5S-0.2S=) 3.3S, after the completion of energy storage device delay, electromagnetism Puller power loss；When lifting device general supply is disconnected without electricity (including energy storage device energy discharges after original state or power loss State afterwards), lifting device remains static；The operating mechanism course of work of movable rack is, when electromagnetism puller main body 1 When power loss, disappear to the electromagnet pull of electromagnetic draw bar 2, electromagnetic draw bar 2 and the transmission pivot pin 4 that is fixed thereon by kidney slot 3, Pulling block 5, pull rod 6 are transferred to the pulling force of jacking block 10 also while disappearing, jacking block 10 by spring 8 elastic force uplink and drive pull rod 6, Uplink, the movable axis 21 being fixed on jacking block 10 follow 10 uplink of jacking block, the left side being driven around on movable axis 21 to pulling block 5 together The open end uplink of the open end of single-arm lever 31 and right single-arm lever 37, drive left single-arm lever 31, left movable mandrel 32 with The hinge component of the hinge component and right single-arm lever 37 of left double-arm lever 34, right movable mandrel 36 and right double-arm lever 35, around Fixing axle 33 rotates, left double-arm 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 double-arm lever upper end drive right movable rack 16 mobile toward 17 center position of lifting device drive rack, Until the application position at a fully engaged with lifting device drive rack 17, brakes lifting device；At the same time, electromagnetic draw bar 2 It is resetted upwards under the action of electromagnetism puller internal reset mechanism, arrival makes to be driven pivot pin 4 and about 3 arc surface of kidney slot is equal There is the position in gap；When electromagnetism puller main body 1 it is electric when, the electromagnet pull of electromagnetic draw bar 2 is generated, electromagnetic draw bar 2 and solid The transmission pivot pin 4 being scheduled on thereon pulls pulling block 5, pull rod 6,10 downlink of jacking block, while compressed spring 8 by kidney slot 3, is fixed on The opening for the left single-arm lever 31 that movable axis 21 on jacking block 10 follows 10 downlink of jacking block while pulling is centered around on movable axis 21 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 Side is 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 past The direction for leaving 17 center of lifting device drive rack is mobile, until being kept completely separate and having one small with lifting device drive rack 17 The free position in section 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 Power, the extreme lower position of the lower end surface of 7 fixed spring 9 of bracket；If there is abnormal conditions, for example, the unexpected power down of lifting device or Person is because of lifting device overspeed protective device action power dump or because lifting device reaches the limit of guarded by location device and moves Cut off the power etc., for lifting device general supply immediately without electricity, other electricity-loss braking devices include the included mistake of motor at this time Electric band brake apparatus plays a role braking immediately, after the completion of energy storage device delay, electromagnetism puller main body power loss, to electromagnetic draw bar 2 electromagnet pull disappearance, 10 uplink of jacking block, left movable rack 12, right movable rack 16 and 17 positive engagement of drive rack guarantee The safety of lifting device；In the case of emergency braking, left movable rack 12, right movable rack 16 at the beginning may be with drive racks 17 do not have at a fully engaged, and the highest point of rack gear may occur when worst situation is braking as shown in Figure 4 and highest point connects The case where touching, temporarily becomes friction catch under the effect of elasticity at this time, if the braking of lifting device whole brake apparatus at this time Torque, which adds up, is enough to realize braking, and braking task is completed；If the braking moment of lifting device whole brake apparatus adds at this time Get up all to be not enough to prevent lifting device downslide, (because there is braking moment effect, it is slower just to start the meeting of downslide), when When slipping down to the position of be staggered highest point and highest point, left movable rack 12, right movable rack 16 will squeeze under elastic force promotion Enter in the tooth socket of drive rack 17 (referring to Fig. 5), then as continuing to glide, continues to squeeze into, until left movable rack 12, right work Carry-over bar 16 and 17 positive engagement of drive rack implement braking；It is drawing that the electromagnetism puller, which is a kind of selected working method, The long-stroke push-and-pull electromagnet of flowing mode, is a kind of novel Electromagnetic Control actuator part, is powered on control conversion using power supply, High-power start, the working method that small-power maintains, can directly use alternating current, than generating the old-fashioned of onesize active force Electromagnet volume is smaller, self weight is lighter, more power 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, so that hand-operating unlocking mechanism pulls the movement of leveling control safety catch to electromagnetism 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.

Each possible braking anchor point of lifting device of leveling control safety catch is pulled using electromagnetism of the invention The distance between be the integral multiple of its drive rack tooth pitch (p=π m), therefore pull leveling control configured with electromagnetism 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 electromagnetism pulls leveling control safety catch The schematic diagram of leveling control safety catch is pulled, 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, it is driven pivot pin 4, pulling block 5, kidney slot 3, the pull rod being arranged on pulling block 5 6, bracket 7, spring 8, adjusting nut group 9, jacking block 10, movable axis 21, left single-arm lever 31, left movable mandrel 32 and left both arms thick stick The hinge component of bar 34, the hinge component of right single-arm lever 37, right movable mandrel 36 and right double-arm lever 35, fixing axle 33；It is living The operating mechanism course of work of carry-over bar is controlled by the control device of the operating mechanism of movable rack, the behaviour of the movable rack The control device of vertical mechanism includes that electromagnetic draw bar 2, electromagnetism puller main body 1, the electromagnetism puller main body include that electromagnetism is drawn The electromagnetic system of dynamic device, control system, the control system of the electromagnetism puller are powered and are 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 Delay time (discharge time) the constant design tuning of magnetic puller is that other electricity-loss braking devices individually complete what braking needed The difference of the movement total delay time of the operating mechanism of braking time and electromagnetism puller and movable rack；For example, certain lifting It is 3.5S that other electricity-loss braking devices of equipment, which individually complete the braking time that braking needs, electromagnetism puller and movable rack The movement total delay time of operating mechanism is 0.2S, then energy storage device is to the delay time constant design tuning of electromagnetism puller (3.5S-0.2S=) 3.3S, after the completion of energy storage device delay, electromagnetism puller power loss；When lifting device general supply is disconnected without electricity When (including the state after energy storage device energy release after original state or power loss), lifting device remains static；Activity The operating mechanism course of work of rack gear is, when electromagnetism puller 1 power loss of main body, disappears to the electromagnet pull of electromagnetic draw bar 2, electricity Magnetic pull rod 2 and the transmission pivot pin 4 that is fixed thereon pass through kidney slot 3, pulling block 5, pull rod 6 and are transferred to the pulling force of jacking block 10 also simultaneously Disappear, jacking block 10 by spring 8 elastic force uplink and drive pull rod 6, pulling block 5 uplink together, the activity being fixed on jacking block 10 Axis 21 follows 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-arm lever 37 Open end uplink drives the hinge component and right single-arm lever of left single-arm lever 31, left movable mandrel 32 with left double-arm lever 34 37, the hinge component of right movable mandrel 36 and right double-arm lever 35, rotates, left double-arm lever 34, right both arms thick stick around fixing axle 33 The lower end of bar 35 is opened toward the left and right sides, and it is right that left double-arm lever upper end drives left movable rack 12, right double-arm lever upper end to drive Movable rack 16 is mobile toward 17 center position of lifting device drive rack, until at a fully engaged with lifting device drive rack 17 Application position brakes lifting device；At the same time, electromagnetic draw bar 2 under the action of electromagnetism puller internal reset mechanism to Upper reset, reaching, which makes to be driven pivot pin 4 and about 3 arc surface of kidney slot, the position in gap；When electromagnetism puller main body 1 must be electric When, the electromagnet pull of electromagnetic draw bar 2 is generated, electromagnetic draw bar 2 is pulled with the transmission pivot pin 4 being fixed thereon by kidney slot 3 Pulling block 5, pull rod 6,10 downlink of jacking block, while compressed spring 8, the movable axis 21 being fixed on jacking block 10 follow 10 downlink of jacking block, 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 are pulled simultaneously, simultaneously Pull the lower end of left double-arm lever 34, right double-arm lever 35 mobile toward centre from the left and right sides, left double-arm lever upper end drives left Movable rack 12, right double-arm lever upper end drive right movable rack 16 to move toward the direction for leaving 17 center of lifting device drive rack It is dynamic, until the free position in a bit of gap is kept completely separate and had with lifting device drive rack 17；The a bit of gap, Refer to the gap 2~5mm；Adjusting nut group 9 is used for the pressure of adjustment spring 8, the lowest order of the lower end surface of 7 fixed spring 9 of bracket It sets；The hand-operating unlocking mechanism, including, 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, 25 and of drive screw The worm gear of worm type of reduction gearing 27 is to be fixedly connected, and usual, clasp nut control crank 23 is placed in and opens a sluice gate position, clasp nut Combination 24 in state of opening a sluice gate, its box thread and the male thread of drive screw 25 without engage, drive screw 25 is to clasp nut group Close 24 movement have no effect, thus hand-operating unlocking mechanism to electromagnetism pull leveling control safety catch movement without appoint What is influenced, when lifting device because have a power failure suddenly or other reason emergency brakings rest in cannot be with any one stop leveling Position when, clasp nut control crank 23 can be placed at this time closing position, make clasp nut combination 24 in "on" position, Its box thread normally engages with the male thread of drive screw 25, manual operation worm screw control crank 26, makes worm type of reduction gearing 27 rotate and drive screw 25 are driven to rotate, the transmission clasp nut of drive screw 25 combination 24 moves up, clasp nut combination 24 drive jacking blocks 10 move down, and the movable axis 21 being fixed on jacking block 10 follows 10 downlink of jacking block while pulling is centered around work The open end of left single-arm lever 31 on moving axis 21 and the open end downlink of right single-arm lever 37, while pulling left double-arm lever 34, the lower end of right double-arm lever 35 is mobile toward centre from the left and right sides, and left double-arm lever upper end drives left movable rack 12, right pair Arm bar upper end drives right movable rack 16 mobile toward the direction for leaving 17 center of lifting device drive rack, until setting with lifting Standby drive rack 17 is kept completely separate and has the free position in a bit of gap；Then Manual jigger mechanism is used, lifting device is made 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 It spends and strictly implements, it is ensured that only have qualification, authorized personnel could open and use；A kind of independence Electromagnetism pulls leveling to control safety catch, the course of work and [0005] section, [0006] section, one described in [0007] section section The rack-and-pinion lifting device electromagnetism that kind is directly arranged on lifting device pulls leveling control safety catch identical.

A kind of elevator, characterized in that be mounted with that rack-and-pinion lifting device electromagnetism of the present invention pulls leveling control Safety catch, the lifting device electromagnetism pull leveling to control safety catch, including directly in lifting device sedan-chair The electromagnetism being arranged on compartment pulls leveling control safety catch, or component is separately provided, is then fitted on lifting device Independent electromagnetic pull leveling control safety catch；All technical characteristics of the present invention are suitable for described being mounted with this hair The bright rack-and-pinion lifting device electromagnetism pulls the elevator of 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；Structure is simpler, is self-possessed lighter, is significantly increased Safeguard protection brakes quality, improves runnability, energy saving beneficial effect.

Detailed description of the invention

Fig. 1 is a kind of structural representation of electromagnetism pulling leveling control safety catch being directly arranged on lifting device Figure.

Fig. 2 is that electromagnetism described in Fig. 1 pulls leveling to control the schematic diagram 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 pulls leveling control safety catch.

Fig. 8 is the schematic diagram of embodiment 1.

Fig. 9 is that the electromagnetism that is equipped with of embodiment 1 pulls the lifting device of leveling control safety catch to be in braking solution The case where except state schematic diagram.

Figure 10 is the schematic diagram of embodiment 2.

Figure 11 is in embodiment 2 when electromagnetism pulls leveling to control schematic diagram when safety catch is in free position.

Specific embodiment

Embodiment 1, Fig. 8 be embodiment 1 schematic diagram, drawing show be lifting device side appearance, the gear Gear rack elevating installation electromagnetical pulls leveling control safety catch to be mounted on pinion and-rack lifting device temporarily in system The case where dynamic state, Fig. 9 are that the rack-and-pinion lifting device electromagnetism that is equipped with of embodiment 1 pulls leveling control safety system Situation schematic diagram during the lifting device of dynamic device is in brake release state, lifting device preparation runs or is currently running, (left and right described in the figure of front is inside lifting device in terms of past lifting device side, and Fig. 8, Fig. 9 are to set from the outside toward lifting Standby side sees, so left and right directions just reverse phase), the rack-and-pinion lifting device electromagnetism pulls leveling to control safety arrestment Device is closely connected with lifting device load-carrying members, directly contacts or by the load-bearing of middle transition component contact, use is put down Layer control and its internal structure each section of safety catch form and what is acted on illustrates as shown in Fig. 1~6, and [0005] Described in section, [0006] section, [0007] section, due to being related to the matching coordinative of multiple transmission systems, so being answered in manufacture and installation Pay special attention to manufacturing quality and installation quality, including must ready-made include accurately controlling stop and stop described in [0008] section Between on sill the difference in height of plane be drive rack tooth pitch (p=π m) integral multiple related work, guarantee necessary precision, It, could trial operation after detection is qualified；The electric control system of lifting device is using embedded system as master control system, work Process is, when system is without electricity, 1 power loss of electromagnetism puller main body, disappears to the electromagnet pull of electromagnetic draw bar 2, electromagnetic draw bar 2 with The transmission pivot pin 4 being fixed thereon is transferred to the pulling force of jacking block 10 also while being disappeared by kidney slot 3, pulling block 5, pull rod 6, jacking block 10 by spring 8 elastic force uplink and drive pull rod 6, pulling block 5 uplink together, the movable axis 21 being fixed on jacking block 10 follows top On the open end of 10 uplink of block, the open end for the left single-arm lever 31 being driven around on movable axis 21 and right single-arm lever 37 Row drives the hinge component and right single-arm lever 37, right work of left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34 The hinge component of moving mandrel 36 and right double-arm lever 35 is rotated around fixing axle 33, under left double-arm lever 34, right double-arm lever 35 It holds toward the left and right sides and opens, left double-arm lever upper end drives left movable rack 12, right double-arm lever upper end to drive right movable rack 16 is mobile toward 17 center position of lifting device drive rack, until the retarder location at a fully engaged with lifting device drive rack 17 It sets, lifting device is braked；With at the same time, electromagnetic draw bar 2 is multiple upwards under the action of electromagnetism puller internal reset mechanism Position, reaching, which makes to be driven pivot pin 4 and about 3 arc surface of kidney slot, the position in gap；When lifting device prepares to start, lifting The drive system driving lifting device of the electric control system control lifting device of equipment moves up a distance element, makes load-bearing The upper plane of component and the lower plane of upper rail 15 and right movable rack 16 and left movable rack 12 has a microgap, and described is micro- The numerical value in gap is 0.2~0.6 times of left movable rack 12, right movable rack 16 and 17 sideshake of lifting device drive rack；So The electric control system control electromagnetism puller main body 1 of lifting device obtains electric afterwards, generates to the electromagnet pull of electromagnetic draw bar 2, electricity Magnetic pull rod 2 pulls pulling block 5, pull rod 6,10 downlink of jacking block by kidney slot 3 with the transmission pivot pin 4 being fixed thereon, and compresses simultaneously Spring 8, the left single armed that 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 The open end downlink of the open end of lever 31 and right single-arm lever 37, while pulling left double-arm lever 34, right double-arm lever 35 Lower end is mobile toward centre from the left and right sides, and it is right that left double-arm lever upper end drives left movable rack 12, right double-arm lever upper end to drive Movable rack 16 is mobile toward the direction for leaving 17 center of lifting device drive rack, until complete with lifting device drive rack 17 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 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；It is set if there is abnormal conditions, such as lifting For unexpected power down or because it is in the horizontal direction, to power off source or because go up and down that the movement of lifting device overspeed protective device, which is cut, Equipment reaches the limit of guarded by location device action and cuts off the power etc., and lifting device general supply is immediately without electricity, other power loss at this time Brake apparatus includes that the included power loss band brake apparatus of motor plays a role braking immediately, electric after the completion of energy storage device delay 1 power loss of magnetic puller main body, to the electromagnet pull disappearance of electromagnetic draw bar 2,10 uplink of jacking block, left movable rack 12, right movable teeth Item 16 and 17 positive engagement of drive rack, ensure that the safety of lifting device；When lifting device because of power failure or other suddenly Reason emergency braking is rested in when cannot be with the position of any one stop leveling, clasp nut control crank 23 can be set at this time In closing position, engage clasp nut combination 24 normally with the male thread of drive screw 25 in "on" position, its box thread, Manual operation worm screw control crank 26 rotates worm type of reduction gearing 27 and drives the rotation of drive screw 25, drive screw 25 Transmission clasp nut combination 24 moves down, 24 drive jacking block 10 of clasp nut combination moves down, and is fixed on jacking block 10 The open end for the left single-arm lever 31 that movable axis 21 follows 10 downlink of jacking block while pulling is centered around on movable axis 21 and right single armed The open end downlink of lever 37, while the lower end of left double-arm lever 34, right double-arm lever 35 being pulled to move from the left and right sides toward centre Dynamic, 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 set toward leaving lifting The direction at standby 17 center of drive rack is moved, until oneself of a bit of gap is kept completely separate and had with lifting device drive rack 17 By position；Then Manual jigger mechanism is used, the nearest leveling of lifting device is made；The hand-operating unlocking mechanism is necessarily placed at peace The position that reliably cannot arbitrarily open entirely, has formulated rules and regulations and has strictly implemented, it is ensured that only had qualification, awarded The personnel of power could open and use.

Embodiment 2 is that one kind is equipped with rack-and-pinion lifting device electromagnetism pulling leveling control safety system of the present invention The lifting device of dynamic device, Figure 10 is the schematic diagram of embodiment 2, it is shown that electromagnetism puller main body 1 is in power failure state, electricity Magnetic pull leveling control safety catch implement braking when the case where, Figure 11 be embodiment 2 at electromagnetism puller main body 1 In obtaining electricity condition, electromagnetism pulls leveling to control schematic diagram when safety catch is in free position state, the gear of use It is that one kind is separately provided stand-alone assembly, then pacifies that gear rack elevating installation electromagnetical, which pulls leveling control safety catch specific structure, Independent electromagnetic on lifting device pull leveling 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, 1 power loss of electromagnetism puller main body, disappear to the electromagnet pull of electromagnetic draw bar 2, electromagnetic draw bar 2 be fixed on Transmission pivot pin 4 thereon is transferred to the pulling force of jacking block 10 also while being disappeared by kidney slot 3, pulling block 5, pull rod 6, and jacking block 10 is by bullet The elastic force uplink of spring 8 and pull rod 6, pulling block 5 uplink together are driven, the movable axis 21 being fixed on jacking block 10 follows on jacking block 10 The open end for the left single-arm lever 31 go, being driven around on movable axis 21 and the open end uplink of right single-arm lever 37, drive Hinge component and right single-arm lever 37, the right movable mandrel 36 of left single-arm lever 31, left movable mandrel 32 with left double-arm lever 34 It with the hinge component of right double-arm lever 35, is rotated around fixing axle 33, the past left and right in lower end of left double-arm lever 34, right double-arm lever 35 Two sides are 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 toward lifting 17 center position of device drives rack gear is mobile, until the application position at a fully engaged with lifting device drive rack 17, to lifting Equipment braking；With at the same time, electromagnetic draw bar 2 resets upwards under the action of electromagnetism puller internal reset mechanism, and arrival makes Transmission pivot pin 4 and about 3 arc surface of kidney slot have the position in gap；When lifting device prepares to start, the electricity of lifting device Gas control system control lifting device drive system driving lifting device move up a distance element, make load-supporting part and on The upper plane of the lower plane of rail 15 and right movable rack 16 and left movable rack 12 has a microgap, the number of the microgap Value is 0.2~0.6 times of left movable rack 12, right movable rack 16 and 17 sideshake of lifting device drive rack；Then lifting is set Standby electric control system control electromagnetism puller main body 1 it is electric, the electromagnet pull of electromagnetic draw bar 2 is generated, electromagnetic draw bar 2 with The transmission pivot pin 4 being fixed thereon pulls pulling block 5, pull rod 6,10 downlink of jacking block, while compressed spring 8 by kidney slot 3, 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, 1 power loss of electromagnetism puller main body, to electromagnetism The electromagnet pull disappearance of pull rod 2,10 uplink of jacking block, left movable rack 12, right movable rack 16 and 17 positive engagement of drive rack, It ensure that the safety of lifting device；When lifting device because suddenly have a power failure or other reason emergency brakings rest in cannot with appoint When the position of what stop leveling, clasp nut control crank 23 can be placed in closing position at this time, combine clasp nut 24 normally engage with the male thread of drive screw 25, manual operation worm screw control crank 26, make in "on" position, its box thread Worm type of reduction gearing 27 rotates and the rotation of drive screw 25, drive screw 25 is driven to be driven clasp nut combination 24 to moving up Dynamic, 24 drive jacking blocks 10 of clasp nut combination move down, and the movable axis 21 being fixed on jacking block 10 follows 10 downlink of jacking block, same Shi Ladong is centered around the open end of the left single-arm lever 31 on movable axis 21 and the open end downlink of right single-arm lever 37, draws simultaneously Move left double-arm lever 34, the lower end of right double-arm lever 35 is moved from the left and right sides toward centre, the left work of left double-arm lever upper end drive Carry-over bar 12, right double-arm lever upper end drive right movable rack 16 to move toward the direction for leaving 17 center of lifting device drive rack It is dynamic, until the free position in a bit of gap is kept completely separate and had with lifting device drive rack 17；Then hand turning is used Mechanism makes the nearest leveling of lifting device；The hand-operating unlocking mechanism is necessarily placed at the position that securely and reliably cannot arbitrarily open It sets, formulated rules and regulations and strictly implements, it is ensured that only have qualification, authorized personnel could open and make With.

Embodiment 3, it is a kind of to be mounted with that the lifting device electromagnetism being directly arranged on lifting device pulls leveling control safety The elevator of brake assemblies, outside drawing same Fig. 8, Fig. 9, working principle and [0023] section are described identical.

Embodiment 4, a kind of individual secure braking for being mounted with lifting device electromagnetism and pulling leveling control safety catch The elevator of device assembly, outside drawing same Fig. 9, Figure 10, 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

1. a kind of rack-and-pinion lifting device electromagnetism pulls leveling to control safety catch, characterized in that including load receiving part Part, rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, movable rack operating mechanism Control device, hand-operating unlocking mechanism；The load-supporting part includes direct load-supporting part or middle transition load-supporting part；Institute The rail assembly stated includes the horizontal rail of upper rail, lower rail formation, track window aperture；Movable rack passes through track window aperture, institute The movable rack stated includes left movable rack and right movable rack, the tooth form for the part of movable rack being associated with drive rack In that can be engaged with the drive rack of lifting device or isolated position, pass through horizontal in the horizontal rail of rail assembly It is mobile or be maintained on the position of certain determinations and realize and the engagement of drive rack or separate, the position of the determination, It is kept completely separate including the application position engaged with lifting device drive rack or with lifting device drive rack and has one section The free position in gap, described has one section of gap, refers to that drive rack and movable rack tooth top interplanar corresponding thereto have The distance of >=2mm；The position-limit mechanism of the movable rack, including, the inner end for the part of movable rack being associated with guide rail At least one direction of face either above or below is provided with guiding notch, and 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；At the top of movable rack after entering on-position with liter The load-supporting part of drop equipment carriage directly contacts or contacts load-bearing by middle transition load-supporting part；The manipulation machine of movable rack Structure manipulation activities rack gear is moved horizontally or is stopped on rail assembly on the position for being maintained at certain determinations, the movable teeth The control device of the operating mechanism of item includes electromagnetism puller and its control system, the control system of the electromagnetism puller It is powered and is controlled by lifting device electric-control system；The lifting device electromagnetism pulls leveling to control safety catch, including The electromagnetism being directly arranged in lifting device carriage pulls leveling control safety catch component, or is separately provided independent group Part, the independent electromagnetic being then fitted on lifting device pull leveling to control safety catch component；

The rack-and-pinion lifting device electromagnetism that described one kind is directly arranged in lifting device carriage pulls leveling control safety Brake assemblies, the manipulation including load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, movable rack Mechanism, the control device of the operating mechanism of movable rack, hand-operating unlocking mechanism；The load-supporting part includes upper rail and main load-bearing Component；The rail assembly includes track window aperture, upper rail and main load-supporting part and the horizontal rail that lower rail is formed；Described Movable rack includes right movable rack and left movable rack, and the right movable rack and left movable rack pass through track window Hole, the tooth form of the part of movable rack being associated with drive rack be in can be engaged with the drive rack of lifting device or Isolated position, realize on the position by the way that certain determinations are moved horizontally or be maintained in the horizontal rail of rail assembly with The engagement or separation of drive rack, at the top of right movable rack and left movable rack after entering on-position with lift car Upper rail and main load-supporting part directly contact 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；The position-limit mechanism of the movable rack, including, activity It is provided with guiding notch above the inner face of a part that rack gear is associated with guide rail, a part of common shape with movable rack cover board At guide groove, guide plate a part is fixed in horizontal rail, a part enters guide groove, the auxiliary section of guide groove and guide plate It is divided into dynamic cooperation, to prevent outside or inside play of the movable rack to carriage；The operating mechanism of the movable rack, packet It includes, is driven pivot pin, pulling block, the kidney slot being arranged on pulling block, pull rod, bracket, 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-arm lever, right movable mandrel and right double-arm lever Hinge component, fixing axle；The operating mechanism course of work of movable rack by movable rack operating mechanism control device control System, the control device of the operating mechanism of the movable rack includes electromagnetic draw bar, electromagnetism puller main body, the electromagnetism Puller main body includes the control system of electromagnetism puller, and the control system of the electromagnetism puller is by the automatically controlled system of lifting device System power supply and control；Further include in the control unit of the electromagnetism puller of the lifting device electric control system one only by The relay of general supply control perhaps contactor and the energy storage device only relay or contactor that are controlled by general supply Normally-closed contact be connected across between electromagnetism puller and energy storage device, when lifting device obtains electric, normally-closed contact disconnect, electromagnetism pull Connection between device and energy storage device also disconnects, energy storage device energy storage；When lifting device power loss, other electricity-loss braking devices include The included power loss band brake apparatus of motor plays a role braking immediately, but electromagnetism puller not power loss immediately, Relay or contactor normally-closed contact the power loss closure controlled by general supply, connect electromagnetism puller with energy storage device, stores up Energy device is that other electricity-loss braking devices individually complete what braking needed to the delay time constant design tuning of electromagnetism puller The difference of the movement total delay time of the operating mechanism of braking time and electromagnetism puller and movable rack；Energy storage device has been delayed Cheng Hou, electromagnetism puller power loss；When lifting device general supply is disconnected without electricity, lifting device remains static；Movable rack The operating mechanism course of work be, when electromagnetism puller main body power loss, to disappear to the electromagnet pull of electromagnetic draw bar, electromagnetic draw bar It is also disappeared simultaneously with the transmission pivot pin being fixed thereon by the pulling force that kidney slot, pulling block, pull rod are transferred to jacking block, jacking block is by bullet The elastic force uplink of spring and pull rod, pulling block uplink together are driven, the movable axis being fixed on jacking block follows jacking block uplink, promotion to enclose It is wound on the open end of the left single-arm lever on movable axis and the open end uplink of right single-arm lever, drives left single-arm lever, left work The hinge component of the hinge component and right single-arm lever of moving mandrel and left double-arm lever, right movable mandrel and right double-arm lever, around Fixing axle rotation, left double-arm lever, right double-arm lever lower end opened toward the left and right sides, left double-arm lever upper end drives left activity Rack gear, right double-arm lever upper end drive right movable rack mobile toward lifting device drive rack center position, up to setting with lifting The standby at a fully engaged application position of drive rack, brakes lifting device；At the same time, electromagnetic draw bar is inside electromagnetism puller It is resetted upwards under the action of resetting-mechanism, reaching makes to be driven the position that pivot pin and kidney slot or more arc surface have gap；Work as electricity When magnetic puller main body obtains electric, the electromagnet pull of electromagnetic draw bar is generated, electromagnetic draw bar and the transmission pivot pin being fixed thereon are logical Cross kidney slot and pull pulling block, pull rod, jacking block downlink, while compressed spring, the movable axis being fixed on jacking block follow jacking block downlink, 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 are pulled simultaneously, while pulling a left side Double-arm lever, the lower end of right double-arm lever are mobile toward centre from the left and right sides, and left double-arm lever upper end drives left movable rack, the right side Double-arm lever upper end drives right movable rack mobile toward the direction for leaving lifting device drive rack center, until and lifting device Drive rack 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；It adjusts 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 conditions, including 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, lifting device general supply is immediately without electricity, other electricity-loss braking device packets at this time The included power loss band brake apparatus of motor is included to play a role immediately braking, after the completion of energy storage device is delayed, electromagnetism puller master Body power loss, it is reliable to the electromagnet pull disappearance of electromagnetic draw bar, jacking block uplink, left movable rack, right movable rack and drive rack Engagement, ensure that the safety of lifting device；The electromagnetism puller is the long row of pulling mode for a kind of selected working method Journey sliding electromagnet is a kind of Electromagnetic Control actuator part, is powered on control conversion, high-power start, small-power using power supply The working method of maintenance can directly use alternating current.

2. rack-and-pinion lifting device electromagnetism according to claim 1 pulls leveling to control safety catch, feature It is the 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 combination with pulling block be fixedly connected, drive screw and worm type of reduction gearing Worm gear is to be fixedly connected, and usual, clasp nut control crank is placed in and opens a sluice gate position, clasp nut combination is in state of opening a sluice gate, it Box thread has no effect to the movement that clasp nut combines without engagement, drive screw with the male thread of drive screw, thus hand Dynamic unlocking mechanism pulls the movement of leveling control safety catch to have no effect electromagnetism, when lifting device because stopping suddenly Electric or other reason emergency brakings are rested in when cannot be with the position of any one stop leveling, clasp nut can be grasped at this time Vertical handle is placed in closing position, keeps clasp nut combination normal in the male thread of "on" position, its box thread and drive screw Engagement, manual operation worm screw control crank rotate worm type of reduction gearing and drive drive screw rotation, drive screw transmission Clasp nut combination moves up, clasp nut combination drives pulling block to move up, and the movable axis being fixed on pulling block follows drawing 9 uplink of block, drive lever left, right lever lower arm around left fixed shaft, right fixed shaft toward inside rotate, lever left, right lever it is upper Armband moves left movable rack, right movable rack toward the direction movement for leaving lifting device drive rack center, until setting with lifting Standby drive rack is kept completely separate and has the free position in a bit of gap；Then Manual jigger mechanism is used, makes lifting device just Nearly leveling；The hand-operating unlocking mechanism is necessarily placed at the position that securely and reliably cannot arbitrarily open, and has formulated rules and regulations And strictly implement, it is ensured that only have qualification, authorized personnel could open and use.

3. rack-and-pinion lifting device electromagnetism according to claim 1 pulls leveling to control safety catch, feature It is the tooth form of the movable rack tooth form only part of manufacturing activities rack gear being associated with drive rack, along the close of the direction facewidth B The part that inside lifting device carriage, part is not contacted with drive rack is omitted, and there are fillet in all tooth form roots Transition, to reduce stress concentration；The movable rack tooth form facewidth B should be greater than the drive rack facewidth.

4. rack-and-pinion lifting device electromagnetism according to claim 1 pulls leveling to control safety catch, feature It is, when pulling the lifting device of leveling control safety catch to install civil construction early period configured with electromagnetism of the invention, Precise measurement must be carried out by the difference in height to stop and stop, each stop sill is constructed and accurately controlled accordingly The difference in height of plane is the integral multiple of drive rack tooth pitch on sill between stop and stop, in lifting device installation, correctly Working in coordination for lifting device and drive rack is adjusted, so that lifting device just stops leveling accuracy from first layer and in middle position Value.

5. rack-and-pinion lifting device electromagnetism according to claim 1 pulls leveling to control safety catch, feature It is that a kind of rack-and-pinion lifting device electromagnetism pulls the independent electromagnetic of leveling control safety catch to pull leveling control Safety catch component processed, including the separate space surrounded by supporting frame, mounting base, panel, described The operating mechanism of load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, movable rack in separate space, Control device, the hand-operating unlocking mechanism of the operating mechanism of movable rack；The load-supporting part is supporting frame, is belonged in one kind Between transition load-supporting part component, be bolted or the load-carrying members of other connection types and lifting device carriage connect It connects；The rail assembly includes horizontal rail, the track window aperture that upper rail and lower rail are formed, and the movable rack includes a left side Movable rack, right movable rack；The operating mechanism of the movable rack, including, transmission pivot pin, pulling block are arranged on pulling block Kidney slot, pull rod, bracket, spring, adjusting nut group, jacking block, movable axis, left single-arm lever, left movable mandrel and left both arms The hinge component of lever, the hinge component of right single-arm lever, right movable mandrel and right double-arm lever, fixing axle；Movable rack The operating mechanism course of work is controlled by the control device of the operating mechanism of movable rack, the operating mechanism of the movable rack Control device includes that electromagnetic draw bar, electromagnetism puller main body, the electromagnetism puller main body include the control of electromagnetism puller The control system of system, the electromagnetism puller is powered and is controlled by lifting device electric-control system；The lifting device electricity It further include the relay or contactor only controlled by general supply in the control unit of the electromagnetism puller of gas control system And energy storage device, the normally-closed contact of the described relay or contactor only control by general supply be connected across electromagnetism puller with Between energy storage device, when lifting device obtains electric, normally-closed contact is disconnected, and the connection between electromagnetism puller and energy storage device is also broken It opens, 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 is vertical Play a role braking, but electromagnetism puller not power loss immediately, the relay only controlled by general supply or connects Tentaculum normally-closed contact power loss closure, connect electromagnetism puller with energy storage device, when energy storage device is to the delay of electromagnetism puller Between constant design tuning be other electricity-loss braking devices individually completes braking need braking time and electromagnetism puller and activity The difference of the movement total delay time of the operating mechanism of rack gear；After the completion of energy storage device delay, electromagnetism puller power loss；Work as lifting When equipment general supply is disconnected without electricity, lifting device remains static；The operating mechanism course of work of movable rack is to work as electromagnetism When puller main body power loss, disappear to the electromagnet pull of electromagnetic draw bar, electromagnetic draw bar passes through with the transmission pivot pin being fixed thereon Kidney slot, pulling block, pull rod are transferred to the pulling force of jacking block also while disappearing, jacking block by spring elastic force uplink and drive pull rod, Pulling block uplink together, the movable axis being fixed on jacking block follows jacking block uplink, the left single-arm lever being driven around on movable axis Open end and right single-arm lever open end uplink, drive the hinge of left single-arm lever, left movable mandrel and left double-arm lever The hinge component of component and right single-arm lever, right movable mandrel and right double-arm lever, rotates, left double-arm lever, the right side around fixing axle The lower end of double-arm lever is opened toward the left and right sides, and left double-arm lever upper end drives left movable rack, right double-arm lever upper end to drive Right movable rack is mobile toward lifting device drive rack center position, until the braking at a fully engaged with lifting device drive rack Lifting device is braked in position；At the same time, electromagnetic draw bar is multiple upwards under the action of electromagnetism puller internal reset mechanism Position, reaching makes to be driven the position that pivot pin and kidney slot or more arc surface have gap；When electromagnetism puller main body obtains electric, to electricity The electromagnet pull of magnetic pull rod generates, and electromagnetic draw bar pulls pulling block, pull rod, top by kidney slot with the transmission pivot pin being fixed thereon Block downlink, while compressed spring, the movable axis being fixed on jacking block follows jacking block downlink while pulling is centered around on movable axis The open end downlink of the open end of left single-arm lever and right single-arm lever, while pulling under left double-arm lever, right double-arm lever End is mobile toward centre from the left and right sides, and left double-arm lever upper end drives left movable rack, right double-arm lever upper end to drive right activity Rack gear is mobile toward the direction for leaving lifting device drive rack center, until being kept completely separate with lifting device drive rack and having one The free position in segment gap；The a bit of gap, refers to the gap 2~5mm；Adjusting nut group is used for the pressure of adjustment spring Power, the extreme lower position of the lower end surface of bracket fixed spring；If there is abnormal conditions, including the unexpected power down of lifting device or Because lifting device overspeed protective device action power dump or because lifting device reach the limit of guarded by location device action It cuts off the power, for lifting device general supply immediately without electricity, other electricity-loss braking devices include the included power loss band-type brake of motor at this time Device plays a role braking immediately, after the completion of energy storage device delay, electromagnetism puller main body power loss, to the electromagnetism of electromagnetic draw bar Pulling force disappearance, jacking block uplink, left movable rack, right movable rack and drive rack positive engagement, ensure that the peace of lifting device Entirely；The electromagnetism puller is the long-stroke push-and-pull electromagnet of pulling mode for a kind of selected working method, is a kind of electromagnetism Control action performer is powered on control conversion using power supply, and high-power start, the working method that small-power maintains can be direct Use alternating current.

6. rack-and-pinion lifting device electromagnetism according to claim 1 pulls leveling to control safety catch, feature It is that the control system of the electromagnetism puller is powered and controlled by lifting device electric-control system, includes such as in rate-determining steps Lower rate-determining steps, when lifting device prepares to start, the electric control system control lifting device drive system of lifting device is driven Dynamic lifting device moves up a distance element, puts down the lower plane of load-supporting part with right movable rack and the upper of left movable rack There is a microgap in face, and the numerical value of the microgap is left movable rack, right movable rack and lifting device drive rack side 0.2~0.6 times of gap；Then control electromagnetism puller main body obtains electric.

7. a kind of elevator, characterized in that install and use gear teeth described in any claim in claim 1- claim 6 Lifting device electromagnetism pulls leveling to control safety catch.