CN106744144B - Lifting device electromagnetic propulsion rack-and-pinion safety catch - Google Patents

Abstract

A kind of lifting device electromagnetic propulsion rack-and-pinion safety catch, electromagnetic propulsion movable rack is moved horizontally or is maintained in orbit 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；It is braked using electromagnetic propulsion rack-and-pinion safeguard protection, plays the beneficial effect for significantly improving langding accuracy and safeguard protection braking quality.

Description

Lifting device electromagnetic propulsion rack-and-pinion safety catch

Technical field

The present invention relates to lifting device safety catch fields, more particularly to a kind of lifting device electromagnetic propulsion rack gear Formula safety catch.

Background technique

The safety arrestment measure of existing pinion and-rack lifting device, or by braking to motor shaft or being It by the braking to gear shaft or is by the braking to intermediate transmission link axis, these methods are actually with friction system It is dynamic so that gear is stopped operating to realize braking；Friction catch exists probably due to friction material abrasion or oil pollution etc. draw The brake force risen lowers the possibility of even failure；Moreover, making gear stop operating to realize if problem occurs for driving gear Braking cannot generate braking effect；Therefore, to ensure safety, pinion and-rack lifting device, which should configure, reliably can Reply includes the safety arrestment measure that problem and similar safety problem occur for driving gear；It is a kind of feasible using rack brake Method.

Summary of the invention

The purpose of the present invention is to provide a kind of reliably cope with and problem and similar safety occurs including driving gear Problem, relatively simple for structure, lighter safety catch of being self-possessed.

A kind of lifting device electromagnetic propulsion rack-and-pinion safety catch (hereinafter referred to as electromagnetic propulsion rack-and-pinion safety arrestment Device), including, load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, movable rack operating mechanism, Control device, the hand-operating unlocking mechanism of the operating mechanism of movable rack；The load-supporting part include direct load-supporting part or Middle transition load-supporting part；The rail assembly (referring to Fig. 1) includes upper rail 16 (in Fig. 1 and load-supporting part), lower rail 19 The horizontal rail of formation, track window aperture 12；Movable rack passes through track window aperture 12, and the movable rack includes left activity Rack gear 13 and right movable rack 17, the tooth form for the part of movable rack being associated with drive rack 18 are in and can set with lifting Standby drive rack 18 engages perhaps isolated position by moving horizontally or being maintained in the horizontal rail of rail assembly Realize and the engagement of drive rack or separate, the position of the determination on the position of certain determinations, including with lifting device The application position (referring to Fig. 1) or be kept completely separate with lifting device drive rack and have one section of gap that drive rack engages Free position (referring to fig. 2), described has one section of gap, refers to drive rack and movable rack tooth top plane corresponding thereto Between have >=the distance of 2mm；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 is provided with guiding notch, (referring to Fig. 3), with movable rack cover board (left cover 14, right cover plate is 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 16 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 electromagnetic driver, and the electromagnetic driver includes push rod 2, electricity Magnetic pusher body 1, the electromagnetic driver main body 1 include the electromagnetic system of electromagnetic driver, control system, the electricity The control system of magnetic pusher is powered and is controlled by lifting device electric control system, the lifting device electromagnetic propulsion rack gear Formula safety catch including the safety catch component being directly arranged in lifting device carriage, or is separately provided solely Vertical component, the individual secure brake assemblies being then fitted on lifting device.

Fig. 1 is a kind of lifting device electromagnetic propulsion rack-and-pinion safety catch being directly arranged in lifting device carriage Structural schematic diagram, diagram direction be lifting device electromagnetic propulsion rack-and-pinion safety catch 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 18 passes through the sub-fraction that track window aperture 12 is shown, right movable rack 17 is unloaded Cover board is opened, the combination of right movable rack and left movable rack 13 plus a left side its internal structure can be seen clearly, after covering right cover plate The combination of cover board 14 is similar, the two be with rack gear among center chain-dotted line 15 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 18 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 electromagnetic propulsion rack-and-pinion safety catch being arranged in lifting device carriage, including load-supporting part, track groups Part, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, movable rack operating mechanism control dress It sets, hand-operating unlocking mechanism；The load-supporting part includes upper rail and main load-supporting part 16；The rail assembly includes track window The horizontal rail that oral pore 12, upper rail and main load-supporting part 16 and lower rail 19 are formed；The movable rack includes right movable rack 17 and left movable rack 13, the right movable rack 17 and left movable rack 13 pass through track window aperture 12, movable rack With the tooth form for the part that drive rack is associated be in can with the drive rack 18 of lifting device engage or isolated position, It is realized and drive rack 18 on position by the way that certain determinations are moved horizontally or be maintained in the horizontal rail of rail assembly Engagement or separation, the upper rail of right movable rack 17 and the top of left movable rack 13 after entering on-position with lift car And main load-supporting part 16 directly contact load-bearing, the fit dimension of movable rack and horizontal rail is to move to cooperate, and contact surface is light Sliding 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 teeth The position-limit mechanism of item, including, it is provided with guiding notch above the inner face of a part that movable rack is associated with guide rail, with activity Guide groove 28 is collectively formed in a part of rack gear cover board (left cover 14, right cover plate, which do not have, to be drawn), and 29 a part of guide plate is fixed In horizontal rail 16, a part enter guide groove 28, the mating part of guide groove 28 and guide plate 29 is dynamic cooperation, to prevent Outside or inside play of the movable rack to carriage 30；The operating mechanism of the movable rack includes lever left 10, You Gang Bar 20, left fixed shaft 11, right fixed shaft 21, movable axis 22, pulling block 9, bracket 8, spring 7, adjusting nut group 6, pull rod 5, jacking block 4, protection block 3；The control device of the operating mechanism of the movable rack includes electromagnetic driver, the electromagnetic driver packet Include the electromagnetic system, control that electromagnetism push rod 2, electromagnetic driver main body 1, the electromagnetic driver main body include electromagnetic driver The control system of system, the electromagnetic driver is powered and is controlled by lifting device electric control system；The lifting is set Further include the relay only controlled by general supply in the control unit of the electromagnetic driver of standby electric control system or connects The normally-closed contact of tentaculum and energy storage device, the relay or contactor only controlled by general supply is connected across electromagnetic propulsion Between device and energy storage device, when lifting device obtains electric, normally-closed contact is disconnected, the connection between electromagnetic driver and energy storage device It 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 Play a role braking immediately, but electromagnetic driver not power loss immediately, the relay only controlled by general supply or Contactor normally-closed contact power loss closure, connect electromagnetic driver with energy storage device, delay of the energy storage device to electromagnetic driver Time (discharge time) constant design tuning is the braking time and electromagnetism that other electricity-loss braking devices individually complete that braking needs The difference of the movement total delay time of the operating mechanism of pusher and movable rack；For example, other power loss of certain lifting device It is 3.5S, the movement of the operating mechanism of electromagnetic driver and movable rack that brake apparatus, which individually completes the braking time that braking needs, Total delay time is 0.2S, then energy storage device is (3.5S-0.2S=) to the delay time constant design tuning of electromagnetic driver 3.3S, after the completion of energy storage device delay, electromagnetic driver power loss；When lifting device general supply is disconnected without electricity (including initial shape State after state or power loss after the release of energy storage device energy), lifting device remains static；The operating mechanism of movable rack The course of work is, when electromagnetic driver 1 power loss of main body, electromagnetism push rod 2 with 3 downlink of protection block, jacking block 4 by spring 7 bullet Power effect is immediately following protection block 3 and 2 downlink of electromagnetism push rod and drives pull rod 5, pulling block 9 downlink together, the work being fixed on pulling block 9 Moving axis 22 follows 9 downlink of pulling block, lever left 10,20 lower arm of right lever is driven to turn around left fixed shaft 11, right fixed shaft 21 toward outside Dynamic, lever left 10, the left movable rack 13 of upper arm drive of right lever 20, right movable rack 17 are into lifting device drive rack 18 Heart direction is mobile, until the application position at a fully engaged with drive rack 18, jacking block 4 stops downlink, but electromagnetism push rod 2 with Protection block 3 continues traveling downwardly a small distance, reaches and keeps discontiguous state with jacking block 4, to guarantee left movable rack 13, right work Carry-over bar 17 and 18 positive engagement of drive rack, described a small distance refer to 2~5mm distance；When electromagnetic driver main body 1 it is electric when, control 2 uplink of electromagnetism push rod, electromagnetism push rod 2 is with 3 uplink of protection block, 4 protected pieces 3 of jacking block of press also uplink And driving pull rod 5, pulling block 9, compressed spring 7, the movable axis 22 being fixed on pulling block 9 follow on pulling block 9 uplink simultaneously together Row drives lever left 10,20 lower arm of right lever to rotate around left fixed shaft 11, right fixed shaft 21 toward inside, lever left 10, right lever 20 upper arm drives left movable rack 13, right movable rack 17 mobile toward the direction for leaving 18 center of lifting device drive rack, Until the free position in a bit of gap is kept completely separate and had with lifting device drive rack 18, a bit of gap is Refer to the gap 2~5mm；Adjusting nut group 6 is used for the pressure of adjustment spring 7, and bracket 8 supports the highest of the upper surface of fixed spring 7 Position；If there is abnormal conditions, such as the unexpected power down of lifting device or because the movement of lifting device overspeed protective device is cut Power-off source or because lifting device reaches the limit of guarded by location device action and cuts off the power etc., lifting device is always electric at this time Immediately without electricity, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays a role braking immediately in source, are being stored up Can device delay after the completion of, 1 power loss of electromagnetic driver main body, electromagnetism push rod 2 with 3 downlink of protection block be reset to original state, 4 downlink of jacking block, left movable rack 13, right movable rack 17 and 18 positive engagement of drive rack, ensure that the safety of lifting device； In the case of emergency braking, left movable rack 13, right movable rack 17 may not have with drive rack 18 at the beginning it is at a fully engaged, most Adverse conditions 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 bullet Friction catch is temporarily become under power effect, if the braking moment of lifting device whole brake apparatus adds up and is enough to realize at this time Braking, braking task are completed；If the braking moment of lifting device whole brake apparatus, which adds up, at this time is all not enough to prevent liter Drop equipment to glide, (because there is braking moment effect, just start glide can be slower), when slip down to be staggered highest point with When the position of highest point, left movable rack 13, right movable rack 17 will squeeze into the tooth socket of drive rack 18 under elastic force promotion In (referring to Fig. 5), then as continuing to glide, continue to squeeze into, until left movable rack 13, right movable rack 17 and drive rack 18 positive engagements implement braking；The electromagnetic driver is the long-stroke push-and-pull electromagnetism pushed for a kind of selected working method Iron is a kind of novel Electromagnetic Control actuator part, is powered on control conversion, high-power start using power supply, small-power maintains Working method, old-fashioned electromagnet volume than generating onesize active force 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, thus movement nothing of the hand-operating unlocking mechanism to electromagnetic propulsion rack-and-pinion safety catch Any influence cannot be put down when lifting device because power failure or other reason emergency brakings suddenly rests in any one stop When the position of layer, clasp nut control crank 23 can be placed in closing position at this time, make clasp nut combination 24 in combined floodgate shape State, its box thread normally engage with the male thread of drive screw 25, manual operation worm screw control crank 26, worm and gear are made to slow down 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 group It closes 24 drive pulling blocks 9 to move up, the movable axis 22 being fixed on pulling block 9 follows 9 uplink of pulling block, drives lever left 10, You Gang 20 lower arm of bar is rotated around left fixed shaft 11, right fixed shaft 21 toward inside, the left movable teeth of upper arm drive of lever left 10, right lever 20 Item 13, right movable rack 17 are mobile toward the direction for leaving 18 center of lifting device drive rack, until with lifting device sliding tooth Item 18 is kept completely separate and has the free position in a bit of gap；Then Manual jigger mechanism is used, the nearest leveling of lifting device is made； The hand-operating unlocking mechanism is necessarily placed at the position that securely and reliably cannot arbitrarily open, and has formulated rules and regulations and stringent 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.

It is its drive using the distance between each possible braking anchor point of the lifting device of safety catch of the invention The integral multiple of carry-over bar tooth pitch (p=π m), therefore it is configured with the lifting of electromagnetic propulsion rack-and-pinion safety catch of the invention The installation method of equipment includes, when carrying out and install related civil construction early period, it is necessary to pass through the height to stop and stop Difference carries out precise measurement, is constructed accordingly to each stop sill and accurately controls between stop and stop plane on sill Difference in height is the integral multiple of drive rack tooth pitch (p=π m), and according to the regulation of GB/T10058, allowable error is ± 10mm (construction Internally controlling requirement should be less than this error amount)；In lifting device installation, the correct position for adjusting drive rack, so that lifting is set Standby carriage just stops leveling accuracy from first layer and in median, then later stop leveling can meet the requirements, even When other individual leveling element failures, stop leveling accuracy also can guarantee；And leveling keeps precision can be remote Better than the requirement of ± 20mm as defined in GB/T10058.

The present invention carries out safeguard protection braking using electromagnetic propulsion rack gear engagement system, avoids existing friction catch side It is that formula is likely to occur because of security risk caused by friction material abrasion or oil pollution etc., improve safety arrestment can By property；Even if meeting driving gear, there is a situation where problems, also can reliably brake, it is ensured that safety；Its leveling keeps precision can be with Reach the requirement for being much better than ± 20mm as defined in GB/T10058；Structure is simpler, is self-possessed lighter, be significantly increased safeguard protection It brakes quality, improve runnability, energy saving beneficial effect.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of lifting device electromagnetic propulsion rack-and-pinion safety catch.

Fig. 2 is the schematic diagram that electromagnetic propulsion rack-and-pinion safety catch described in Fig. 1 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 the schematic diagram in the tooth socket that left and right movable rack squeezes into lifting device drive rack under elastic force promotion.

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 of embodiment 1.

Fig. 8 is the case where electromagnetic propulsion rack-and-pinion safety catch of embodiment 1 brakes elevator schematic diagram.

Fig. 9 is the schematic diagram of embodiment 2.

Figure 10 is in schematic diagram when free position for electromagnetic propulsion rack-and-pinion safety catch in embodiment 2.

Figure 11 is a kind of schematic diagram of individual secure brake assemblies of electromagnetic propulsion rack-and-pinion safety catch.

Specific embodiment

Embodiment 1, it is a kind of to be mounted with that the electromagnetic propulsion rack-and-pinion safety arrestment being directly arranged in lifting device carriage fills Set the lifting device of component, Fig. 7 is the schematic diagram of embodiment 1, drawing show be elevator side appearance, the electromagnetic propulsion Rack-and-pinion safety catch be mounted on rack-and-pinion lifting device temporarily in free position, lifting device prepare operation or Person be currently running in situation, Fig. 8 is that the electromagnetic propulsion rack-and-pinion safety catch of embodiment 1 brakes lifting device The case where schematic diagram, (left and right described in the figure of front is toward in terms of lifting device side inside the lifting device, and Fig. 7,8 are from outer Face sees toward lifting device side, so left and right directions just reverse phase), the electromagnetic propulsion rack-and-pinion safety catch is necessary It is mounted on the lower section of the main load-carrying members of lifting device, is directly contacted or by the load-bearing of middle transition component contact, the electricity of use Magnetic promotion its internal structure each section of rack-and-pinion safety catch forms and what is acted on illustrates as shown in Fig. 1~6, and [0005] section, [0006] section, [0007] Duan Suoshu, embodiment 1 are related to the matching coordinative of multiple transmission systems, thus manufacture and It should be specifically noted that manufacturing quality and installation quality when installation, must carry out about accurately controlling stop including [0008] Duan Suoshu The difference in height of plane is the work of the integral multiple of drive rack tooth pitch (p=π m) on sill between stop, guarantees necessary essence Degree could trial operation after detection is qualified；The electric control system of lifting device using embedded system as master control system, The course of work is that when system is without electricity including disconnecting power switch or accidental power failure etc. make lifting device general supply disconnected Open, 1 power loss of electromagnetic driver main body, control 2 downlink of push rod, push rod 2 with 3 downlink of protection block, jacking block 4 by spring 7 elastic force Effect is immediately following protection block 3 and 2 downlink of push rod and drives pull rod 5, pulling block 9 downlink together, the movable axis 22 being fixed on pulling block 9 It follows 9 downlink of pulling block, lever left 10,20 lower arm of right lever is driven to rotate around left fixed shaft 11, right fixed shaft 21 toward outside, left thick stick Bar 10, right lever 20 upper arm drive left movable rack 13, right movable rack 17 toward 18 center position of lifting device drive rack Mobile, until the application position at a fully engaged with drive rack 18, jacking block 4 stops downlink, but push rod 2 with protection block 3 after Continuous downlink a small distance, reaches and keeps discontiguous state with jacking block 4, to guarantee left movable rack 13, right movable rack 17 With 18 positive engagement of drive rack, described a small distance refers to 2~5mm distance；When lifting device prepares to start, rise The electric control system control lifting device drive system driving lifting device of drop equipment moves up a distance element, makes load-bearing The upper plane of the lower plane of component 16 and right movable rack 17 and left movable rack 13 has a microgap, the microgap Numerical value is 0.2~0.6 times of left movable rack 13, right movable rack 17 and 18 sideshake of lifting device drive rack；Then it controls Electromagnetic driver main body 1 must be electric, and push rod 2 is with 3 uplink of protection block, 4 protected pieces 3 of jacking block of press also uplink and drives drawing Compressed spring 7, the movable axis 22 being fixed on pulling block 9 follow 9 uplink of pulling block, drive left thick stick uplink simultaneously together for bar 5, pulling block 9 Bar 10,20 lower arm of right lever are rotated around left fixed shaft 11, right fixed shaft 21 toward inside, the upper armband of lever left 10, right lever 20 It is mobile toward the direction for leaving 18 center of lifting device drive rack to move left movable rack 13, right movable rack 17, until with lifting Device drives rack gear 18 is kept completely separate and has the free position in a bit of gap, a bit of gap, refers between 2~5mm Gap；It is ready for lifting device starting；When needing to stop after lifting device starting, the electric control system of lifting device is first broken Open lifting device motor power, motor deceleration, when close to stop position, such as when close to level position, lifting device Electric control system control 1 power loss of electromagnetic driver main body on schedule, 2 downlink of push rod is controlled, until left movable rack 13, right The application position of movable rack 17 and 18 positive engagement of lifting device drive rack；If occurred when lifting device is currently running different Reason condition, for example, 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 device general supply is without electricity at this time, Other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays a role braking immediately, have been delayed in energy storage device Cheng Hou, 1 power loss of electromagnetic driver main body, electromagnetic driver main body 1 control 2 downlink of push rod, left movable rack 13, right movable rack 17 with 18 positive engagement of lifting device drive rack, ensure that the safety of lifting device；When lifting device because suddenly have a power failure or The other reason emergency brakings of person rest in when cannot be with the position of any one stop leveling, clasp nut can be manipulated hand at this time Handle 23 is placed in closing position, makes 24 male thread in "on" position, its box thread and drive screw 25 of clasp nut combination just Normal engagement, manual operation worm screw control crank 26 rotate worm type of reduction gearing 27 and drive the rotation of drive screw 25, transmission The transmission clasp nut of screw rod 25 combination 24 moves up, 24 drive pulling blocks 9 of clasp nut combination move up, and is fixed on pulling block 9 On movable axis 22 follow 9 uplink of pulling block, drive lever left 10,20 lower arm of right lever past around left fixed shaft 11, right fixed shaft 21 Inside rotation, lever left 10, right lever 20 upper arm drive left movable rack 13, right movable rack 17 toward leaving lifting device drive The direction at 18 center of carry-over bar is mobile, until the free position in a bit of gap is kept completely separate and had with lifting device drive rack 18 It sets；Then Manual jigger mechanism is used, lifting device slowly steady nearest leveling is made；The hand-operating unlocking mechanism must be provided with In the position that securely and reliably cannot arbitrarily open, rules and regulations is formulated and have strictly implemented, it is ensured that only had qualification, obtain Personnel to authorization could open and use.

Embodiment 2 is that one kind is equipped with electromagnetic propulsion rack-and-pinion safety catch individual secure braking of the present invention The lifting device of device assembly, Fig. 9 is the schematic diagram of embodiment 2, it is shown that electromagnetic driver main body 1 is in power failure state, Electromagnetic propulsion rack-and-pinion safety catch implement braking when the case where, Figure 10 be embodiment 2 at electromagnetic driver main body 1 In obtaining electricity condition, electromagnetic propulsion rack-and-pinion safety catch is in schematic diagram when free position state, and the lifting of use is set Standby electromagnetic propulsion rack-and-pinion safety catch specific structure is that one kind is separately provided stand-alone assembly, is then fitted into lifting device On individual secure brake assemblies, Figure 11 be the lifting device electromagnetic propulsion rack-and-pinion safety catch one kind The schematic diagram of individual secure brake assemblies, picture is the view for having shed bottom plate in figure, the planar peripheral size of bottom plate and As panel 49, it does not have track window aperture 50 above unlike panel 49, and certain bottom plate must also have enough hold Beijing South Maxpower Technology Co. Ltd's power；A kind of individual secure brake assemblies of lifting device electromagnetic propulsion rack-and-pinion safety catch, packet Include the separate space surrounded by supporting frame 48, mounting base, panel 49, the load receiving part in the separate space 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 is supporting frame 48, 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 Horizontal rail, the track window aperture 50 formed including upper rail 46 and lower rail 47, the movable rack include left movable rack 13, Right movable rack 17, the operating mechanism of the movable rack include lever left 10, right lever 20, left fixed shaft 11, right fixation Axis 21, movable axis 22, pulling block 9, bracket 8, spring 7, adjusting nut group 6, pull rod 5, jacking block 4, protection block 3；The movable teeth The control device of the operating mechanism of item includes that push rod 2, electromagnetic driver main body 1, the electromagnetic driver main body include electromagnetism The electromagnetic system of pusher, control system, the control system of the electromagnetic driver by the power supply of lifting device electric-control system and Control；What its internal structure each section of the electromagnetic propulsion rack-and-pinion safety catch of use was formed and acted on illustrates to see Fig. 1~6 It is shown, and [0005] section, [0006] section, [0007] Duan Suoshu, embodiment 1 be related to the matching coordinative of multiple transmission systems, institute Should be specifically noted that manufacturing quality and installation quality in manufacture and installation, including must carrying out about standard for [0008] Duan Suoshu Really the difference in height of plane is the work of the integral multiple of drive rack tooth pitch (p=π m) on sill between control stop and stop, is protected Necessary precision is demonstrate,proved, it, could trial operation after detection is qualified；The electric control system of lifting device is using embedded system as master Control system, the course of work are that when system is without electricity including disconnecting power switch or accidental power failure etc. make lifting device General supply disconnection, 1 power loss of electromagnetic driver main body, push rod 2 are acted on 3 downlink of protection block, jacking block 4 by the elastic force of spring 7 tight With protection block 3 and 2 downlink of push rod and pull rod 5, pulling block 9 downlink together are driven, the movable axis 22 being fixed on pulling block 9 follows drawing 9 downlink of block drives lever left 10,20 lower arm of right lever to rotate around left fixed shaft 11, right fixed shaft 21 toward outside, lever left 10, The upper arm of right lever 20 drives left movable rack 13, right movable rack 17 mobile toward 18 center position of lifting device drive rack, Until the application position at a fully engaged with drive rack 18, jacking block 4 stops downlink, but push rod 2 is continued traveling downwardly with protection block 3 A small distance reaches and keeps discontiguous state with jacking block 4, to guarantee left movable rack 13, right movable rack 17 and driving 18 positive engagement of rack gear, described a small distance refer to 2~5mm distance；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 16 Lower plane and the upper plane of right movable rack 17 and left movable rack 13 have a microgap, the numerical value of the microgap is 0.2~0.6 times of left movable rack 13, right movable rack 17 and 18 sideshake of lifting device drive rack；Then control electromagnetism pushes away Dynamic device main body 1 must be electric, and push rod 2 is with 3 uplink of protection block, 4 protected pieces 3 of jacking block of press also uplink and drives pull rod 5, drawing Compressed spring 7, the movable axis 22 being fixed on pulling block 9 follow 9 uplink of pulling block, drive lever left 10, is right uplink block 9 simultaneously together 20 lower arm of lever is rotated around left fixed shaft 11, right fixed shaft 21 toward inside, the left activity of upper arm drive of lever left 10, right lever 20 Rack gear 13, right movable rack 17 are mobile toward the direction for leaving 18 center of lifting device drive rack, until driving with lifting device Rack gear 18 is kept completely separate and has the free position in a bit of gap, and a bit of gap refers to the gap 2~5mm；For lifting Equipment starting is ready；When needing to stop after lifting device starting, the electric control system of lifting device first disconnects lifting and sets Standby motor power, motor deceleration, when close to stop position, such as when close to level position, the electric-controlled of lifting device System processed controls 1 power loss of electromagnetic driver main body on schedule, controls 2 downlink of push rod, until left movable rack 13, right movable rack 17 with the application position of 18 positive engagement of lifting device drive rack；If occurring abnormal conditions when lifting device is currently running, Such as the unexpected power down of lifting device or because lifting device overspeed protective device action power dump or because rise Drop equipment reaches the limit of guarded by location device action and cuts off the power etc., and lifting device general supply is without electricity, other mistakes at this time Electric braking device includes that the included power loss band brake apparatus of motor plays a role braking immediately, after the completion of energy storage device is delayed, 1 power loss of electromagnetic driver main body, electromagnetic driver main body 1 control 2 downlink of push rod, left movable rack 13, right movable rack 17 with 18 positive engagement of lifting device drive rack, ensure that the safety of lifting device；When lifting device because suddenly have a power failure or its Its reason emergency braking rests in when cannot be with the position of any one stop leveling, at this time can be clasp nut control crank 23 It is placed in closing position, nibbles clasp nut combination 24 normally in the male thread of "on" position, its box thread and drive screw 25 Conjunction, manual operation worm screw control crank 26 rotate worm type of reduction gearing 27 and drive the rotation of drive screw 25, drive screw 25 transmission clasp nut combinations 24 move up, 24 drive pulling block 9 of clasp nut combination moves up, and are fixed on pulling block 9 Movable axis 22 follows 9 uplink of pulling block, drives lever left 10,20 lower arm of right lever around left fixed shaft 11, right fixed shaft 21 toward inside Rotation, lever left 10, right lever 20 upper arm drive left movable rack 13, right movable rack 17 toward leaving lifting device sliding tooth The direction at 18 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 18； Then Manual jigger mechanism is used, lifting device slowly steady nearest leveling is made；The hand-operating unlocking mechanism is necessarily placed at The position that securely and reliably cannot arbitrarily open has been formulated rules and regulations and has strictly been implemented, it is ensured that only had qualification, obtain The personnel of authorization could open and use.

Embodiment 3, it is a kind of to be mounted with that the electromagnetic propulsion rack-and-pinion safety arrestment being directly arranged in lifting device carriage fills The elevator of component is set, outside drawing same Fig. 7, Fig. 8, working principle and [0021] section are described identical.

Embodiment 4, one kind being equipped with electromagnetic propulsion rack-and-pinion safety catch individual secure braking of the present invention The elevator of device assembly, outside drawing same Fig. 9, Figure 10, working principle and [0022] section are described identical.

For the benefit of reader understands the present invention, and this specification illustrates some specific structures and data, these be all for Explanation and it is non-limiting, various changes, replacement and the change done within the scope of the basic thought of the claims in the present invention are produced Raw all or part of equivalent, all within the scope of the invention as claimed.

Claims (8)

1. a kind of lifting device electromagnetic propulsion rack-and-pinion safety catch, including, load-supporting part, rail assembly, movable rack, The position-limit mechanism of movable rack, the operating mechanism of movable rack, the control device of the operating mechanism of movable rack, manual unlocking machine Structure；The load-supporting part includes direct load-supporting part or middle transition load-supporting part；The rail assembly include upper rail, The horizontal rail that lower rail is formed, track window aperture；Movable rack passes through track window aperture, and the movable rack includes left activity Rack gear and right movable rack, the tooth form for the part of movable rack being associated with drive rack is in can be with the drive of lifting device Carry-over bar engages perhaps isolated position by the way that certain determinations are moved horizontally or be maintained in the horizontal rail of rail assembly Position on realize and the engagement of drive rack or separate, the position of the determination, including with lifting device drive rack The application position of engagement or the free position that one section of gap is kept completely separate and had with lifting device drive rack, it is described There is one section of gap, refers to that drive rack and movable rack tooth top interplanar corresponding thereto have the >=distance of 2mm；The activity The position-limit mechanism of rack gear, including, the inner face either above or below at least one for the part of movable rack being associated with guide rail A direction is provided with guiding notch, guide groove is collectively formed with a part of movable rack cover board, guide plate a part is fixed on water On plate rail road, a part enter guide groove, the mating part of guide groove and guide plate is 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 by middle transition load-supporting part；The operating mechanism manipulation activities rack gear of movable rack is in rail assembly On move horizontally or stop on the position for being maintained at certain determinations, the control device packet of the operating mechanism of the movable rack Include, electromagnetic driver and its control system, the control system of the electromagnetic driver by the power supply of lifting device electric-control system and Control；The lifting device electromagnetic propulsion rack-and-pinion safety catch, including what is be directly arranged in lifting device carriage Electromagnetic propulsion rack-and-pinion safety catch component, or stand-alone assembly is separately provided, be then fitted into it is only on lifting device Vertical electromagnetic propulsion rack-and-pinion safety catch component.

2. lifting device electromagnetic propulsion rack-and-pinion safety catch according to claim 1, characterized in that described one The electromagnetic propulsion rack-and-pinion safety catch component that kind is directly arranged in lifting device carriage, including load-supporting part, track Component, 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；The rail assembly includes track window The horizontal rail that oral pore, upper rail and main load-supporting part and lower rail are formed；The movable rack includes right movable rack and left work Carry-over bar, the right movable rack and left movable rack pass through track window aperture, and movable rack is associated with drive rack Part tooth form be in can with the drive rack of lifting device engage or isolated position, pass through the water in rail assembly It moves horizontally or is maintained on plate rail road and realize and the engagement of drive rack or separate, right activity on the position of certain determinations Load-bearing is directly contacted with the upper rail of lift car and main load-supporting part after entering on-position at the top of rack gear and left movable rack, Movable rack and the fit dimension of horizontal rail are dynamic cooperation, and contact surface is smooth low coefficient of friction surfaces, to be conducive to live The movement of carry-over bar；The position-limit mechanism of the movable rack, including, the inner end of a part that movable rack is associated with guide rail It is provided with guiding notch above face, guide groove is collectively formed with a part of movable rack cover board, guide plate a part is fixed on water On plate rail road, a part enter guide groove, the mating part of guide groove and guide plate is dynamic cooperation, to prevent movable rack to sedan-chair The outside in compartment or inside play；The operating mechanism of the movable rack includes that lever left, right lever, left fixed shaft, the right side are solid Dead axle, movable axis, pulling block, bracket, spring, adjusting nut group, pull rod, jacking block, protection block；The manipulation machine of the movable rack The control device of structure includes that push rod, electromagnetic driver main body, the electromagnetic driver main body include the control of electromagnetic driver The control system of system, the electromagnetic driver is powered and is controlled by lifting device electric control system；The lifting is set Further include the relay only controlled by general supply in the control unit of the electromagnetic driver of standby electric control system or connects The normally-closed contact of tentaculum and energy storage device, the relay or contactor only controlled by general supply is connected across electromagnetic propulsion Between device and energy storage device, when lifting device obtains electric, normally-closed contact is disconnected, the connection between electromagnetic driver and energy storage device It 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 Play a role braking immediately, but electromagnetic driver not power loss immediately, the relay only controlled by general supply or Contactor normally-closed contact power loss closure, connect electromagnetic driver with energy storage device, delay of the energy storage device to electromagnetic driver Time constant design tuning is the braking time and electromagnetic driver and work that other electricity-loss braking devices individually complete that braking needs The difference of the movement total delay time of the operating mechanism of carry-over bar；When lifting device general supply is disconnected without electricity, at lifting device In stationary state；The operating mechanism course of work of movable rack is that, when electromagnetic driver main body power loss, push rod is with protection block Downlink, jacking block immediately following protection block and push rod downlink and are driven pull rod, pulling block downlink together by the elastic force effect of spring, are fixed on Movable axis on pulling block follows pulling block downlink, lever left, right lever lower arm is driven to turn around left fixed shaft, right fixed shaft toward outside It is dynamic, lever left, right lever upper arm drive left movable rack, right movable rack to move toward lifting device drive rack center position Dynamic, until the application position at a fully engaged with drive rack, jacking block stops downlink, but push rod continues traveling downwardly one with protection block Segment distance reaches and keeps discontiguous state with jacking block, to guarantee that left movable rack, right movable rack and drive rack are reliable Engagement, described a small distance refer to 2~5mm distance；When electromagnetic driver main body obtains electric, push rod uplink, push rod are controlled With protection block uplink, protected piece of jacking block of press also uplink and pull rod, pulling block uplink while compressed spring together are driven, The movable axis being fixed on pulling block follow pulling block uplink, drive lever left, right lever lower arm around left fixed shaft, right fixed shaft inside Side rotation, lever left, right lever upper arm drive left movable rack, right movable rack toward leaving lifting device drive rack center Direction it is mobile, until the free position in a bit of gap is kept completely separate and had with lifting device drive rack, described one is small Section gap, refers to the gap 2~5mm；Adjusting nut group is used for the pressure of adjustment spring, and bracket supports the upper surface of fixed spring Extreme higher position；If there is abnormal conditions, including the unexpected power down of lifting device or because lifting device overspeed protective device is dynamic It cuts off the power or because lifting device reaches the limit of guarded by location device action and cuts off the power, lifting device is always electric at this time Immediately without electricity, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays a role braking immediately in source, are being stored up After the completion of energy device delay, electromagnetic driver main body power loss, push rod is with protection block downlink, jacking block downlink, left movable rack, the right side Movable rack and drive rack positive engagement, ensure that the safety of lifting device；The electromagnetic driver is a kind of selected work Make the long-stroke push-and-pull electromagnet that mode is the way of propelling, is a kind of novel Electromagnetic Control actuator part, using power supply Power-up control conversion, high-power start, the working method that small-power maintains.

3. lifting device electromagnetic propulsion rack-and-pinion safety catch according to claim 1, characterized in that the hand Dynamic unlocking mechanism, including, clasp nut control crank, clasp nut combination, drive screw, worm screw control crank, worm and gear Retarder, wherein clasp nut combination with pulling block be fixedly connected, the worm gear of drive screw and worm type of reduction gearing is fixed Connection, usual, clasp nut control crank, which is placed in, opens a sluice gate position, clasp nut combination in state of opening a sluice gate, its box thread and passes The movement that the male thread of dynamic screw rod combines clasp nut without engagement, drive screw has no effect, thus hand-operating unlocking mechanism It has no effect to the movement of electromagnetic propulsion rack-and-pinion safety catch, when lifting device because of unexpected power failure or other originals Because emergency braking rests in cannot be with the position of any one stop leveling when, clasp nut control crank can be placed in conjunction at this time Gate position engages clasp nut combination normally with the male thread of drive screw in "on" position, its box thread, manual 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 drives pulling block to move up, the movable axis being fixed on pulling block follow pulling block uplink, drive it is left Lever, right lever lower arm are rotated around left fixed shaft, right fixed shaft toward inside, the left movable teeth of upper arm drive of lever left, right lever Item, right movable rack are mobile toward the direction for leaving lifting device drive rack center, until complete with lifting device drive rack Separate and have the free position in a bit of gap；Then Manual jigger mechanism is used, the nearest leveling of lifting device is made；The hand Dynamic unlocking mechanism is necessarily placed at the position that securely and reliably cannot arbitrarily open, and has formulated rules and regulations and has strictly implemented, really Guarantor only has qualification, and authorized personnel could open and use.

4. lifting device electromagnetic propulsion rack-and-pinion safety catch according to claim 1, characterized in that movable rack The tooth form of the tooth form only part of manufacturing activities rack gear being associated with drive rack, the close lifting device sedan-chair along the direction facewidth B The part that inside compartment, part is not contacted with drive rack is omitted, and there are round-corner transition in all tooth form roots, to reduce Stress is concentrated；The movable rack tooth form facewidth B should be greater than the drive rack facewidth.

5. lifting device electromagnetic propulsion rack-and-pinion safety catch according to claim 1, characterized in that be configured with When the lifting device of safety catch of the invention installs civil construction early period, it is necessary to pass through the difference in height to stop and stop Precise measurement is carried out, is constructed and accurately controlled the height of plane on sill between stop and stop to each stop sill accordingly Degree difference is the integral multiple of drive rack tooth pitch, correct to adjust the mutual of lifting device and drive rack in lifting device installation Cooperation, so that lifting device just stops leveling accuracy from first layer and in median.

6. lifting device electromagnetic propulsion rack-and-pinion safety catch according to claim 1, characterized in that described one The individual secure brake assemblies of kind of lifting device electromagnetic propulsion rack-and-pinion safety catch, including by supporting frame, The separate space that mounting base, panel surround, load-supporting part, rail assembly, movable teeth in the separate space 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 be supporting frame, belong to a kind of component of middle transition load-supporting part, be bolted or The other connection types of person are connect with the load-carrying members of lifting device carriage；The rail assembly includes that upper rail and lower rail are formed Horizontal rail, track window aperture, the movable rack include left movable rack, right movable rack, the movable rack Operating mechanism includes lever left, right lever, left fixed shaft, right fixed shaft, movable axis, pulling block, bracket, spring, adjusting nut Group, pull rod, jacking block, protection block；The control device of the operating mechanism of the movable rack includes push rod, electromagnetic driver master Body, the electromagnetic driver main body include the control system of electromagnetic driver, the control system of the electromagnetic driver by The power supply of lifting device electric-control system and control；The operating mechanism course of work of movable rack is, when electromagnetic driver main body power loss When, push rod immediately following protection block and push rod downlink and is driven pull rod, drawing by the elastic force effect of spring with protection block downlink, jacking block Block downlink together, the movable axis being fixed on pulling block follow pulling block downlink, drive lever left, right lever lower arm around left fixed shaft, Right fixed shaft is rotated toward outside, lever left, right lever upper arm drive left movable rack, right movable rack to drive toward lifting device Rack gear center position is mobile, until the application position at a fully engaged with drive rack, jacking block stops downlink, but push rod is with guarantor Protecting block continues traveling downwardly a small distance, reaches and keeps discontiguous state with jacking block, to guarantee left movable rack, right movable rack With drive rack positive engagement, described a small distance refers to 2~5mm distance；When electromagnetic driver main body obtains electric, control Push rod uplink processed, push rod with protection block uplink, protected piece of jacking block of press also uplink and drive pull rod, pulling block together on Compressed spring, the movable axis being fixed on pulling block follow pulling block uplink, drive lever left, right lever lower arm around left fixation row simultaneously Axis, right fixed shaft are rotated toward inside, lever left, right lever upper arm drive left movable rack, right movable rack toward leaving 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, a bit of gap, refers to the gap 2~5mm；Adjusting nut group is used for the pressure of adjustment spring, and bracket is supported solid Determine the extreme higher position of the upper surface of spring；If there is abnormal conditions, including the unexpected power down of lifting device or because lifting is set For overspeed protective device action power dump or because lifting device reaches the limit of guarded by location device action and cuts off the power, Lifting device general supply is immediately without electricity at this time, so electromagnetic driver main body also power loss immediately, push rod is with protection block downlink, top Block downlink, left movable rack, right movable rack and drive rack positive engagement, ensure that the safety of lifting device；The electricity Magnetic pusher is the long-stroke push-and-pull electromagnet of the way of propelling for a kind of selected working method, is a kind of novel Electromagnetic Control Actuator part is powered on control conversion, high-power start using power supply, and the working method that small-power maintains can be used directly Alternating current.

7. lifting device electromagnetic propulsion rack-and-pinion safety catch according to claim 1, characterized in that the electricity The control system of magnetic pusher is powered and is controlled by lifting device electric-control system, includes step control as follows in rate-determining steps, When lifting device prepare start when, lifting device electric control system control lifting device drive system drive lifting device to One distance element of upper movement, the upper plane of the lower plane and right movable rack and left movable rack that make load-supporting part have one it is micro- between Gap, the numerical value of the microgap are the 0.2~0.6 of left movable rack, right movable rack and lifting device drive rack sideshake Times；Then control electromagnetic driver main body obtains electric.

8. a kind of elevator, characterized in that install and use lifting described in any claim in claim 1- claim 7 and set Standby electromagnetic propulsion rack-and-pinion safety catch.