CN106629287B - Rack-and-pinion lifting device maintainable technology on-orbit supports device - Google Patents

Abstract

A kind of rack-and-pinion lifting device maintainable technology on-orbit support device, characterized in that including at least one individual secure brake apparatus and at least one maintenance platform；Individual secure brake apparatus does not depend on the drive system of lifting device, independent realize fixes the reliable braking of lifting device progress, pulls individual secure brake apparatus including a kind of levels electromagnetic；Maintenance platform expands into the first working condition, and staff may stand in lifting device carriage, and the closer equipment of distance outside lifting device carriage is checked or repaired by window；Second of working condition is expanded into, staff may stand on workbench, and the farther away equipment of distance outside lifting device carriage is checked or repaired；It plays and saves the useful space, improves working efficiency and work quality, improve the beneficial effect of safeguard protection degree.

Description

Rack-and-pinion lifting device maintainable technology on-orbit supports device

Technical field

The present invention relates to lifting device maintenance unit fields, more particularly to a kind of rack-and-pinion lifting device maintainable technology on-orbit Support device.

Background technique

Driving gear failure once occurs for rack-and-pinion lifting device, then the existing axis system by transmission system It is dynamic to make the braking method for driving gear to stop operating with regard to different surely reliable braking, if emergency braking occur with leveling There is the position of a distance in position, existing so that lifting device carriage is moved to level position by barring gear manual operation Method also fails because driving gear failure；It is therefore desirable to be able to support the device of maintainable technology on-orbit, to ensure safety.

Summary of the invention

The purpose of the present invention, being to provide one kind can support in various situations, support mobile to rack-and-pinion lifting device The maintenance of part such as lifting device cab interior and its external attached device, and to lifting device fixed part such as lift well Facility in road includes the maintenance of guide track system etc., including in-orbit, especially in-orbit midway to rack-and-pinion lifting device into Row daily maintenance and failure is repaired, restores the maintainable technology on-orbit device of rack-and-pinion lifting device service ability.

A kind of rack-and-pinion lifting device maintainable technology on-orbit support device, characterized in that including at least one individual secure system Dynamic device and at least one maintenance platform；The individual secure brake apparatus refers to the driving system for not depending on lifting device System, independent realization carry out the fixed safety catch of reliable braking to rack-and-pinion lifting device, just can ensure that contingency in this way The drive system of lifting device fails, and lifting device still can reliably brake fixation, repair operation；The independent peace Full application of brake device, including mechanical device or electric device or hydraulic device or pneumatic device or electric-liquid The combination of combined unit or electric-gas combined unit or calutron or two kinds of above-mentioned apparatus above；Alternatively, packet Include a kind of independent brake device of worm and gear bispin bolt and nut driving movable rack；Or a kind of levels electromagnetic pulls independently Safety catch；The levels electromagnetic pulls individual secure brake apparatus, and device is configured by horizontal direction, and installation site exists Lifting device car top or bottom or other reasonable positions, composition includes load-supporting part, rail assembly, activity Rack gear, the position-limit mechanism of movable rack, the operating mechanism of movable rack, movable rack operating mechanism control device, manually Unlocking mechanism；The control device of the operating mechanism of its movable rack includes electromagnetism puller, the control of the electromagnetism puller System is powered and is controlled by lifting device electric control system；The maintenance platform includes, can folding and unfolding maintenance platform, (when being not at maintenance work state, the internal useful space can be saved)；It is described can folding and unfolding maintenance platform have and pack up State and unfolded state, the unfolded state include expanding into the first working condition, or expand into second of work shape State；The first described working condition, including, maintenance work window 26 is constructed on the side panel of lifting device, work people Member may stand in lifting device carriage, and the closer equipment of distance outside lifting device carriage is checked or tieed up by window It repairs；Second of working condition, including constructing maintenance work window 26, and stretching liter on the side panel of lifting device Workbench outside equipment side panel drops, staff may stand on workbench, to distance outside lifting device carriage compared with Remote equipment is checked or is repaired；To guarantee safety, it is described have can folding and unfolding maintenance platform lifting device setting Mechanical electric is chain.

Fig. 1 is the signal for the individual secure brake apparatus that the worm and gear bispin bolt and nut drives movable rack Figure, diagram direction are that pinion and-rack lifting device safety catch is mounted on lifting device carriage 60 close to lifting device drive On the inside carriage side of certain one side of carry-over bar 88, from cab interior toward carriage side in terms of seen in, so for lifting set Standby drive rack 88 can only see it and pass through the sub-fraction that track window aperture 58 is shown, Fig. 1 is shown movable rack and rises The application position of device drives rack gear engagement drops, and Fig. 2 is that individual secure brake apparatus described in Fig. 1 is in free position state Schematic diagram；The independent brake device of the worm and gear bispin bolt and nut driving movable rack, including, rail assembly, work The operating mechanism of carry-over bar, movable rack；The rail assembly includes that track window aperture 58, guide plate 63, load-supporting part are simultaneous The horizontal rail that upper rail 61 and lower rail 59 are formed, the movable rack includes right movable rack 67 and left movable rack 64, institute The right movable rack 67 and left movable rack 64 stated pass through track window aperture 58, the drive rack with lifting device of movable rack The tooth form of 88 parts being associated is in can be with the engagement of the drive rack 88 of lifting device or isolated position, right movable teeth Item 67 and 64 top of left movable rack directly contact load-bearing, movable rack with load-supporting part and upper rail 61 after entering on-position At least one direction of the inner face either above or below for the part being associated with guide rail be provided with guide groove, guide groove and guiding The mating part of plate 63 is dynamic cooperation, to prevent outside or inside play of the movable rack to carriage 60；The movable teeth The operating mechanism of item includes worm and gear gearbox 51, worm and gear transmission operation rocking bar 52, bispin screw rod 55, left-handed spiral shell Female 56, left-handed nut regulation handle 57, right-handed nut 66, right-handed nut's regulation handle 53；Bispin screw rod 55 and the fixed company of worm gear It connects, the left movable rack 64 of left-handed nut 56 is fixedly connected, and the right movable rack 67 of right-handed nut 66 is fixedly connected；Its course of work For when lifting device operates normally (including normally go up and down and stop), the worm and gear bispin bolt and nut, which drives, lives The individual secure brake apparatus of carry-over bar is in free position, has no effect to the normal operation of lifting device；When lifting is set When standby needs hovering maintenance, after other brake apparatus brake lifting device, manual operation worm and gear transmission operation rocking bar 52, worm-drive worm gear, worm gear drive bispin screw rod 55 to rotate, and the transmission of bispin screw rod 55 left-handed nut 56, right-handed nut 66 are past It is mobile close to 88 direction of drive rack, while left-handed nut 56 drives left movable rack 64, right-handed nut 66 to drive right movable teeth Item 67 is mobile toward close 88 direction of drive rack, until with 88 positive engagement of drive rack, it is at this moment double by the worm and gear The individual secure brake apparatus of rotation bolt and nut driving movable rack undertakes braking pinned task, the dynamical system of lifting device Including driving gear all liberate be in can service mode；Then expansion maintenance platform repairs operation；When other brakings fill It sets when lifting device cannot be made to brake, ordinary circumstance is that braking moment is inadequate, but also lifting device speed can be made to become smaller, this When, left movable rack 64, right movable rack 67 can be made to close to driving with manual operation worm and gear transmission operation rocking bar 52 88 direction of rack gear is mobile, until with 88 positive engagement of drive rack；May not have with drive rack 88 at the beginning it is at a fully engaged, most Adverse conditions is as (task of Fig. 3, Fig. 4 are to show two kinds of contact situations of movable rack and drive rack to Fig. 3, are clear Contact situation of the movable rack with drive rack is shown, so all the bispin screw rod and nut and other parts for covering them Omit) shown in brake when may there is a situation where the highest points of rack gear and highest point contact, at this time bolt and nut pair it is pre- Friction catch is temporarily become under clamp force effect, if the braking moment of lifting device whole brake apparatus adds up and is enough reality at this time It now brakes, braking task is completed；It is all not enough to prevent if the braking moment of lifting device whole brake apparatus adds up at this time Lifting device glides, and (because there is braking moment effect, it is slower just to start the meeting of downslide), at this moment, operator is necessary Meticulous inspection, it is well-controlled, when slipping down to the position of be staggered highest point and highest point, continue to operate worm and gear gearbox behaviour Make rocking bar 52, follow left movable rack 64, right movable rack 67 in the tooth socket for squeezing into drive rack 88 (referring to fig. 4) closely, Then as continuing to glide, continue to squeeze into, until left movable rack 64, right movable rack 67 and 88 positive engagement of drive rack, Implement braking；The individual secure brake apparatus major advantage of the worm and gear bispin bolt and nut driving movable rack is knot Structure is simple, small in size from heavy and light, and manual operation can be grasped flexibly；Fig. 3 be may occur when braking the highest point of rack gear with The status diagram of highest point contact, Fig. 4 are when left movable rack, the sliding opposite with lifting device drive rack of right movable rack To be staggered highest point and highest point position when, operate worm and gear transmission operation rocking bar, make left movable rack, right movable teeth Item follows the schematic diagram in the tooth socket for squeezing into drive rack closely.

Fig. 5 is that a kind of rack-and-pinion lifting device levels electromagnetic pulls safety catch (hereinafter referred to as levels electromagnetic drawing Dynamic safety catch) structural schematic diagram, diagram direction is from 60 top of rack-and-pinion lifting device carriage, sheds top sedan-chair Compartment outside plate finding viewed from above, thus for lifting device drive rack 88 can only see its top, right movable rack 87 into Broken section processing is gone, its internal fit structure with right double-arm lever 105 can be seen clearly (with right double-arm lever 105 The connection of one arm), the combination of right movable rack and the combination of left movable rack be with rack gear among center chain-dotted line indicate perpendicular to The vertical median plane of rack gear projection plane is the mirror symmetric figure of symmetrical plane, and bracket 77 is half section, and activity is shown in Fig. 5 The state that rack gear is engaged with lifting device drive rack, the levels electromagnetic pull safety catch to be in application position shape State；Fig. 6 is schematic diagram of the releasing braking in free state that levels electromagnetic shown in fig. 5 pulls safety catch, projection Direction is identical as the projecting direction of Fig. 5；Fig. 7 is the A-A partial sectional view of Fig. 5, and direction is from the eyes front of A-A section (to rack gear Direction is seen) seen in, drawing is double with a left side for the operating mechanism of movable rack from the front of rail assembly, movable rack, movable rack Arm bar 104, right double-arm lever 105 vertical section direction show that the connection relationship between them, the state of display are movable teeths Item engages the state of braking with lifting device drive rack；Fig. 8 is the movable rack that view direction same as shown in Figure 7 is shown The schematic diagram of discrete state is in lifting device drive rack；Fig. 9 is the B-B partial sectional view of Fig. 5, and direction is to cut open from B-B Face, which is turned right, sees and (sees toward centerline direction) finding, and drawing is shown from the vertical section direction of rail assembly, movable rack, movable rack The connection relationship of they and the left double-arm lever 104 of the operating mechanism of movable rack is shown；A kind of rack-and-pinion lifting device water Ordinary telegram magnetic pulls safety catch, characterized in that device is configured by horizontal direction, and installation site is in lifting device car top Or bottom or other reasonable positions, composition include, load-supporting part, rail assembly, movable rack, movable rack Position-limit mechanism, the operating mechanism of movable rack, the control device of the operating mechanism of movable rack, hand-operating unlocking mechanism；Described Load-supporting part includes direct load-supporting part or middle transition load-supporting part；The rail assembly include track window aperture 82, The horizontal rail that guide plate 99, load-supporting part and upper rail 86 and lower rail 89 are formed, the movable rack includes right movable rack 87 and left movable rack 83, the right movable rack 87 and left movable rack 83 pass through track window aperture 82, movable rack The tooth form for the part being associated with the drive rack 88 of lifting device be in can be engaged with the drive rack 88 of lifting device or The position of person's separation, is realized on the position by the way that certain determinations are moved horizontally or be maintained on rail assembly and drive rack 88 engagement or separation, the position of the determination, including the application position that is engaged with lifting device drive rack or with Lifting device drive rack is kept completely separate and has the free position in one section of gap, and described has one section of gap, refers to sliding tooth Item and movable rack tooth top interplanar corresponding thereto have the >=gap 2mm；Movable rack and the fit dimension of horizontal rail are Cooperation, contact surface is smooth low coefficient of friction surfaces, to be conducive to the movement of movable rack, right movable rack 87 and left activity 83 top of rack gear directly contacts load-bearing with load-supporting part and upper rail 86 after entering on-position；The limit of the movable rack Mechanism, which includes that at least one direction of the inner face either above or below for the part of movable rack being associated with guide rail is provided with, to be led Cooperate to the mating part of slot, (referring to Fig. 5), guide groove and guide plate 99 to be dynamic, to prevent movable rack to the outer of carriage 60 Side or inside play；Movable rack top is after entering on-position with the load-supporting part of lifting device carriage (in Fig. 5, Fig. 7 It is load-supporting part and upper rail 86) it directly contacts or load-bearing is contacted by middle transition load-supporting part；The manipulation machine of movable rack Structure manipulation activities rack gear is moved horizontally or is stopped on orbit hole on the position for being maintained at certain determinations, the movable rack The operating mechanism horizontal plane direction that is arranged in lifting device carriage support structure 98 on, the rack-and-pinion lifting device Levels electromagnetic pulls safety catch, and installation site includes the top or bottom or other reasonable positions of carriage； The control device of the operating mechanism of the movable rack includes electromagnetism puller, the electromagnetism puller, is a kind of selected Working method is the long-stroke push-and-pull electromagnet pulled, is a kind of novel Electromagnetic Control actuator part, using power supply plus Automatically controlled conversion, high-power start, the working method that small-power maintains, than the old-fashioned electromagnet volume for generating onesize active force Smaller, lighter, more power saving of being self-possessed；The electromagnetism puller includes pull rod 72, electromagnetism puller main body 71, and the electromagnetism is drawn Dynamic device main body 71 includes the electromagnetic system of electromagnetism puller, control system, and the control system of the electromagnetism puller is by going up and down Equipment electrical control system power supply and control；

The operating mechanism of the movable rack, including, it is driven pivot pin 74, pulling block 75, the kidney-shaped being arranged on pulling block 75 Hole 73, pull rod 76, bracket 77, spring 78, adjusting nut group 79, jacking block 80, movable axis 91, left single-arm lever 101, left slide core The hinge component of axis 102 and left double-arm lever 104, the hinge of right single-arm lever 107, right movable mandrel 106 and right double-arm lever 105 Chain component, fixing axle 103；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 72, electromagnetism puller main body 71, described Electromagnetism puller main body includes the electromagnetic system of electromagnetism puller, control system, the control system of the electromagnetism puller by The power supply of lifting device electric control system and control；The control list of the electromagnetism puller of the lifting device electric control system It further include the contactor only controlled by general supply or the combination of relay adjunction tentaculum and energy storage device, in member The normally-closed contact of contactor or relay adjunction the tentaculum combination controlled by general supply is connected across electromagnetism puller and energy storage dress Between setting, when lifting device obtains electric, normally-closed contact is disconnected, and the connection between electromagnetism puller and energy storage device also disconnects, energy storage Device energy storage；When lifting device power loss, other electricity-loss braking devices include that the included power loss band brake apparatus of motor plays immediately Effect braking, but power loss, the contactor only controlled by general supply or relay do not add electromagnetism puller immediately The normally-closed contact power loss closure of contactor combination, connect electromagnetism puller with energy storage device, energy storage device is to electromagnetism puller Delay time (discharge time) constant design tuning be other electricity-loss braking devices individually completes braking needs braking time With the difference of the movement total delay time of the operating mechanism of electromagnetism puller and movable rack；For example, its of certain lifting device It is 3.5S, the operating mechanism of electromagnetism puller and movable rack that its electricity-loss braking device, which individually completes the braking time that braking needs, Movement total delay time be 0.3S, then energy storage device is (3.5S- to the delay time constant design tuning of electromagnetism puller 0.3S=) 3.2S, after the completion of energy storage device delay, electromagnetism puller power loss；When lifting device general supply is disconnected without electricity (including State after original state or power loss after the release of energy storage device energy), lifting device remains static；The movable teeth The actual motion direction of the operating mechanism of item is that direction defines, 88 direction of drive rack is herein along the horizontal plane to describe clearly Before, it is mobile to move forward to 88 direction of drive rack after 71 direction of electromagnetism puller main body is, to 71 direction of electromagnetism puller main body Mobile is to move back, and (if Fig. 5, Fig. 6 are placed vertically, Forward is exactly the uplink relative to drawing, and moving back is exactly relative to drawing Downlink)；The operating mechanism course of work of movable rack is, when electromagnetism puller 71 power loss of main body, to electromagnetic draw bar 72 Electromagnet pull disappears, and electromagnetic draw bar 72 is transmitted with the transmission pivot pin 74 being fixed thereon by kidney slot 73, pulling block 75, pull rod 76 Pulling force to jacking block 80 also disappears simultaneously, and jacking block 80 is moved forward by the elastic force effect of spring 78 and drives pull rod 76, pulling block 75 1 Forward is played, the movable axis 91 being fixed on jacking block 80 follows the Forward of jacking block 80, the left single armed thick stick being driven around on movable axis 91 The open end of bar 101 and the Forward of the open end of right single-arm lever 107 drive left single-arm lever 101, left movable mandrel 102 and a left side The hinge component of the hinge component of double-arm lever 104 and right single-arm lever 107, right movable mandrel 106 and right double-arm lever 105, Rotated around fixing axle 103, left double-arm lever 104, right double-arm lever 105 rear end opened toward the left and right sides, before left double-arm lever End drives left movable rack 83, right double-arm lever front end to drive right movable rack 87 toward 88 center position of lifting device drive rack It is mobile, until the application position at a fully engaged with lifting device drive rack 88, brakes lifting device；At the same time, electromagnetism Pull rod 72 resets forward under the action of electromagnetism puller internal reset mechanism, and arrival makes to be driven 73 front and back of pivot pin 74 and kidney slot Arc surface has the position in gap；When electromagnetism puller main body 771 must be electric, the electromagnet pull of electromagnetic draw bar 72 is generated, electricity Magnetic pull rod 72 pulls pulling block 75, pull rod 76, jacking block shifting after 80s by kidney slot 73 with the transmission pivot pin 74 being fixed thereon, simultaneously Compressed spring 78, the movable axis 91 being fixed on jacking block 80 follows jacking block shifting after 80s while pulling is centered around on movable axis 91 The open end of left single-arm lever 101 and the open end of right single-arm lever 107 move back, while pulling left double-arm lever 104, right both arms The rear end of lever 105 is mobile toward centre from the left and right sides, before left double-arm lever front end drives left movable rack 83, right double-arm lever It is mobile toward the direction for leaving 88 center of lifting device drive rack that end drives right movable rack 87, until with lifting device sliding tooth Item 88 is kept completely separate and has the free position in a bit of gap；The a bit of gap, refers to the gap 2~5mm；Adjusting nut Group 79 is used for the pressure of adjustment spring 78, the rearmost position of the rear end face of 77 fixed spring 79 of bracket；If there is abnormal conditions, Such as the unexpected power down of lifting device or because lifting device overspeed protective device action power dump or because lifting set The standby guarded by location device action that reaches the limit of is cut off the power etc., and lifting device general supply is immediately without electricity, other power loss systems at this time Dynamic device includes that the included power loss band brake apparatus of motor plays a role braking, after the completion of energy storage device is delayed, electromagnetism immediately Puller main body power loss disappears to the electromagnet pull of electromagnetic draw bar 72, the Forward of jacking block 80, left movable rack 83, right movable rack 87 with 88 positive engagement of drive rack, ensure that the safety of lifting device；In the case of emergency braking, left movable rack 83, right work Carry-over bar 87 may not have at a fully engaged with drive rack 88 at the beginning, and worst situation can when being braking as shown in Figure 10 Friction catch can be temporarily become under the effect of elasticity at this time there is a situation where the highest point of rack gear and highest point contact, if this When lifting device whole brake apparatus braking moment add up and be enough to realize braking, braking task is completed；If gone up and down at this time The braking moment of equipment whole brake apparatus, which adds up, is all not enough to prevent lifting device downslide, (because there is braking moment effect, So it is slower just to start the meeting of downslide), when slipping down to the position of be staggered highest point and highest point, left movable rack 83, the right side Movable rack 87 will in the tooth socket for squeezing into drive rack 88 under elastic force promotion (referring to Figure 11), then as continuing to glide, Continue to squeeze into, until left movable rack 83, right movable rack 87 and 88 positive engagement of drive rack, implement braking；Figure 10 is Fig. 5 C-C partial sectional view direction, the highest point of rack gear and the status diagram of highest point contact may occur when braking, project Direction be from lifting device toward the direction of drive rack 88 from；Figure 11 be Figure 10 same view direction, when left movable rack, The schematic diagram in tooth socket that right movable rack squeezes into lifting device drive rack under elastic force promotion.

The hand-operating unlocking mechanism, including, clasp nut control crank 93, clasp nut combination 94, drive screw 95, Worm screw control crank 96, worm type of reduction gearing 97, wherein clasp nut combination 94 with jacking block 80 be fixedly connected, drive screw 95 with the worm gear of worm type of reduction gearing 97 be fixedly connected, usually, clasp nut control crank 93 be placed in opens a sluice gate position, folding Nut combination 94 in state of opening a sluice gate, its box thread and the male thread of drive screw 95 without engage, 95 pairs of folding spiral shells of drive screw The movement of mother's combination 94 has no effect, so that hand-operating unlocking mechanism pulls safety arrestment dress to rack-and-pinion lifting device electromagnetism The movement set has no effect, when lifting device because suddenly have a power failure or other reason emergency brakings rest in cannot with it is any When the position of one stop leveling, at this time clasp nut control crank 93 can be placed in closing position, make clasp nut combine 94 It normally engaged in "on" position, its box thread with the male thread of drive screw 95, manual operation worm screw control crank 96, make snail Worm and gear retarder 97 rotates and drive screw 95 is driven to rotate, the transmission clasp nut of drive screw 95 combination 94 moves backward, 94 drive jacking block 80 of clasp nut combination moves backward, jacking block shifting after 80s, while compressed spring 78, the work being fixed on jacking block 80 The open end for the left single-arm lever 101 that moving axis 91 follows jacking block shifting after 80s while pulling to be centered around on movable axis 91 and right single armed The open end of lever 107 moves back, while pulling the rear end of left double-arm lever 104, right double-arm lever 105 from the left and right sides toward centre Mobile, left double-arm lever front end drives left movable rack 83, right double-arm lever front end to drive right movable rack 87 is past to leave lifting The direction at 88 center of device drives rack gear is mobile, until being kept completely separate with lifting device drive rack 88 and having a bit of gap Free position；Then Manual jigger mechanism is used, the nearest leveling of lifting device is made；The hand-operating unlocking mechanism is necessarily placed at The position that securely and reliably cannot arbitrarily open has been formulated rules and regulations and has strictly been implemented, it is ensured that only had qualification, obtain The personnel of authorization could open and use.

The control system of the electromagnetism puller is powered and is controlled by lifting device electric control system, electrical control It include that, when lifting device prepares to start, the electric control system of lifting device controls lifting device in the rate-determining steps of system Drive system driving lifting device moves up a distance element, makes lower plane and right movable rack 87 and the left side of load-supporting part 86 The upper plane of movable rack 83 has a microgap, and the numerical value of the microgap is left movable rack 83, right movable rack 87 With 0.2~0.6 times of 88 sideshake of lifting device drive rack；Then control electromagnetism puller main body 71 obtains electric, drives left activity Rack gear 83, right movable rack 87 are mobile toward the direction for leaving 88 center of lifting device drive rack, until driving with lifting device Rack gear 88 is kept completely separate and has the free position in a bit of gap, is ready for lifting device starting.

Figure 12 be it is described can folding and unfolding maintenance platform configure the main view of structure on rack-and-pinion lifting device a kind of The case where schematic diagram, drawing is shown when maintenance platform expands into second of working condition, the sliding tooth of carriage 60 in figure Wheel, rolling guide shoe are all the external visible parts when operating normally, and belong to the prior art, and repeats no more herein thus also without must It marks；Its effect of drive rack 88, left movable rack 83, right movable rack 87 and working principle are in the present specification about only In the content of the vertical safety catch it is stated that left and right of movable rack is from the past side panel in 60 inside of lifting device carriage It is in order to consistent with the statement of previously described individual secure brake apparatus for direction is seen；Maintenance platform is operating normally When pack up, as shown in figure 13, the expansion when needing repairing, the maintenance platform can expand into two kinds of work shapes State；Figure 13 is the schematic front view that the maintenance platform of Figure 12 is packed up, and Figure 14 is that the maintenance platform of Figure 12 expands into the first Main view when working condition, (Figure 13, Figure 14 use lesser ratio because figure is relatively easy), Figure 13 projection table Seem identical as Figure 14 projection on face, but actual content is different, be exactly in Figure 13 projection shown by upper table face 2 be One rectangle, in the main view projection of Figure 14, projection shown by this position or a rectangle, but be upper work The projection for the maintenance work window 26 that table top 2 occurs after shedding just becomes apparent from conjunction with Figure 15, Figure 16 to observe, Figure 15 Figure 13 Left view partial schematic sectional view, Figure 16 be Figure 14 left view partial schematic sectional view, cross-sectional plane be maintenance platform center The perpendicular that line indicates, direction of observation are to see from left to right；There is section in 2 position of upper table face in the drawing of Figure 15 Line, expression are that entity is cut, and same position in the drawing of Figure 16 has been moved without hatching, presentation-entity It opens, forms maintenance work window 26；Maintenance platform is to close when operating normally, and as shown in Figure 13, is needing to tie up Expansion when repairing, as shown in Figure 12, Figure 14, Figure 16, Figure 17, Figure 18；Figure 17 is the left view partial sectional view of Figure 12, and cross-sectional plane is The perpendicular that maintenance platform center line indicates, direction of observation are to see from left to right, and display maintenance platform expands into second The sectional structure of kind working condition；Figure 18 is the left view of the D-D broken section of Figure 12, the path packet that section plane D-D passes through The gap between right side backplate guide rail 25 and lower draw-bar seat 17 is included, direction of observation is to see from left to right, it is shown that in the office of Figure 17 Upper connecting rod 15, the middle pin shaft covered in portion's cross-sectional view by maintenance platform right side backplate 27, upper working panel 2, middle working panel 3 22, the connection of lower pull rod 21, lower bearing pin 20, lower draw-bar seat 17；It is described can folding and unfolding maintenance platform, including, upper work Panel 2, middle working panel 3, maintenance platform reinforcing rib 5, upper lock key seat 6, latch-locking 7, upper pendulum lock pin seat 8, upper working face Plate hinge 9, pull-up pole socket 10, upper working panel hinge seat 11, upper working panel hinge axis 12, upper pin 13, upper connecting rod 15, in Lock key seat 16, lower draw-bar seat 17, middle pendulum lock pin seat 18, middle lock pin 19, lower bearing pin 20, lower pull rod 21, middle pin shaft 22, middle work Panel pivot 23, middle working panel hinge axis 24, right side backplate guide rail 25, right side backplate 27, left side backplate 28, left side backplate are led Rail 29, lower lock key seat 31, lower lock pin 32, plastic boot 33；When it is time for repair, safety catch is first controlled to lifting device Maintenance platform could be unfolded after confirmation lifting device is reliably braked by implementing braking；The working condition packet of maintenance platform expansion Include the first working condition or second of working condition；Described can position of the folding and unfolding maintenance platform in lifting device carriage It sets, the practical feelings of the equipment of inspection or maintenance and the positional relationship of carriage is needed according to the possibility in entire lifting device system Condition determines；After the first working condition is reliably unfolded, according to the needs of maintenance work, braking can be released, low speed carries out touring It checks.

Can folding and unfolding maintenance platform to expand into the process of the first working condition include unlocking first, make latch-locking 7 from upper It is exited in pendulum lock pin seat 8, unlocks the interlocking of lock key seat 6 Yu upper pendulum lock pin seat 8, make working panel 2 and upper working panel Hinge 9 is rotated around upper working panel hinge axis 12, varus reach former top as shown in Figure 5 under, original is below in upper, former direction Outer face becomes the position towards inner face, while lower lock pin 32 is entered upper pendulum lock pin seat by the lockhole of lower lock key seat 31 In 8 lockhole and in place, interlocks lower lock key seat 31 with upper pendulum lock pin seat 8, then lock；At this point, constructing maintenance work Window 26, staff may stand in lifting device carriage, and the state of lifting device carriage external equipment is checked by window, right The equipment found the problem repairs；When need check or repair equipment distance elevating equipment carriage side panel farther out, work When making personnel is inconvenient to check or repair, then maintenance platform is expanded into second of working condition.

It include two kinds of situations, the first situation, the process that maintenance platform expands into second of working condition Expanding into reinflated in the case where the first working condition is second of working condition, then, the first step, to lower lock key seat 31 with The interlocking of upper pendulum lock pin seat 8 unlocks, and exits lower lock pin 32 from upper pendulum lock pin seat 8, unlocks lower lock key seat 32 and upper dynamic lock The interlocking of key seat 8；The interlocking of second step, centering lock key seat 16 and middle pendulum lock pin seat 18 unlocks, and middle lock pin 19 is made therefrom to move lock The interlocking of middle lock key seat 16 and middle pendulum lock pin seat 18 is exited, unlocked in key seat 18；Third step makes working panel 2 and upper work Make panel pivot 9, upper working panel hinge axis 12 follows middle working panel 3 and middle working panel hinge 23 is cut with scissors around middle working panel The rotation of chain rivet 24 is turned up, while the lower draw-bar seat 17 by being fixed on middle working panel 3 pulls lower bearing pin 20 and opposite turn Dynamic, lower bearing pin 20 pulls lower pull rod 21 simultaneously to relatively rotate, lower pull rod 21 pull in pin shaft 22 and relatively rotate, middle pin shaft 22 pulls Upper connecting rod 15 simultaneously relatively rotates, and upper connecting rod 15 is rotated around the upper pin 13 being fixed in pull-up 10 hole of pole socket simultaneously；Work as upper connecting rod 15 when forming 180 ° with the center line angle of cut of lower pull rod 21, and middle working panel 3 turns to extreme position, and the extreme position is set It is calculated as horizontal position；Left side backplate 28 is passed through right side backplate guide rail by left side backplate guide rail 29, right side backplate 27 by the 4th step The 25 vertical side plates for being pushed to behind touch the position of reinforcing rib 5, then fasten, the form of fastening include screw fastening or The other fastening forms of person, the left side backplate 28, right side backplate 27 subsequent vertical side plate be parallel to side panel 1 to the left and right Outside extends beyond the position of reinforcing rib 10mm；5th step makes working panel 2 and upper working panel hinge 9 around upper work The rotation of panel pivot axis 12 is turned up, until the vertical edges before upper working panel 2 contact left side backplate 28, right side backplate 27 Then plate fastens, the form of fastening includes screw fastening or other fastening forms, the left side backplate 28, right side backplate Vertical side plate before 27 is parallel to lifting device side panel 1 extends beyond 50mm position on the inside of to the left and right；Plastic boot 33 after maintenance platform is unfolded according to second of working condition, before staff not yet goes up on the stage, is sleeved on middle working panel 3 and reveals It, may in the end of lifting device cab interior to prevent middle working panel 3 from exposing out in the end of lifting device cab interior Caused scuffing unloads plastic boot 33 and (feelings of the suit of plastic boot 33 is shown in Figure 17 before maintenance platform is packed up Condition, state when being shown in Figure 18 before plastic boot 33 is set with or unloading), in favor of middle working panel 3 smoothly pack up it is multiple Position, the plastic boot 33 unloaded should be saved properly.

Second situation is started to spread out when not yet expanding into the first working condition, is directly expanded into from collapsed state Second of working condition, then, the first step first unlock upper lock key seat 6 and the interlocking of upper pendulum lock pin seat 8, make latch-locking 7 from It is exited in upper pendulum lock pin seat 8, unlocks the interlocking of lock key seat 6 Yu upper pendulum lock pin seat 8, then make working panel 2 and upper work Make that panel pivot 9 is rotated around upper working panel hinge axis 12, varus reaches position as shown in Figure 5；Second step, centering lock key seat 16 unlock with the interlocking of middle pendulum lock pin seat 18, exit middle lock pin 19 therefrom in pendulum lock pin seat 18, unlock middle lock key seat 16 with The interlocking of middle pendulum lock pin seat 18；Third step, make working panel 2 and upper working panel hinge 9, upper working panel hinge axis 12 with Rotate, turn up around middle working panel hinge axis 24 with middle working panel 3 and middle working panel hinge 23, at the same by being fixed in Lower draw-bar seat 17 on working panel 3 pulls lower bearing pin 20 and relatively rotates, and lower bearing pin 20 pulls lower pull rod 21 and relatively rotates, Lower pull rod 21 pin shaft 22 and relatively rotates in pulling, and middle pin shaft 22 pulls upper connecting rod 15 simultaneously to relatively rotate, upper connecting rod 15 simultaneously around The upper pin 13 being fixed in pull-up 10 hole of pole socket rotates；When the center line angle of cut of upper connecting rod 15 and lower pull rod 21 forms 180 ° When, middle working panel 3 turns to extreme position, and the extreme position is designed as horizontal position；4th step, left side backplate 28 It is pushed to vertical side plate behind by right side backplate guide rail 25 by left side backplate guide rail 29, right side backplate 27 and touches and add The position of strengthening tendons 5, then fastens, the form of fastening include screw fastening or other fastening forms, the left side backplate 28, The subsequent vertical side plate of right side backplate 27 is parallel to lifting device side panel 1 and extends beyond reinforcing rib 10mm to the left and right Position；5th step makes working panel 2 and upper working panel hinge 9 rotate, turn up around upper working panel hinge axis 12, directly Vertical side plate before the supreme contact of working panel 2 left side backplate 28, right side backplate 27, then fastens, the form packet of fastening Screw fastening or other fastening forms are included, the vertical side plate before the left side backplate 28, right side backplate 27 is parallel to Lifting device side panel 1 extends beyond the position of 60mm on the inside of to the left and right；Plastic boot 33 is in maintenance platform according to second After working condition expansion, before staff not yet goes up on the stage, it is sleeved on middle working panel 3 and exposes at the end of lifting device cab interior Portion, to prevent middle working panel 3 from exposing in the possible scuffing in the end of lifting device cab interior, when maintenance platform is packed up Before, plastic boot 33 is unloaded, so that middle working panel 3 smoothly packs up reset, the plastic boot 33 unloaded should be saved properly；Maintenance Maintenance platform should be packed up after the completion of work in time, the process packed up is carried out according to the sequence opposite with expansion process, until Reach working panel 2, the position that middle working panel 3 is bonded completely with the side panel of carriage, as shown in Figure 13, Figure 15；Then Make lock pin 19 enter in pendulum lock pin seat 18 and in place, make middle lock pin 19 not only in the lockhole of middle lock key seat 16, but in it is dynamic In the lockhole of locking pin seat 18, the interlocking of lock key seat 16 and middle pendulum lock pin seat 18, is then locked in foundation；Then, make latch-locking 7 Into upper pendulum lock pin seat 8 and in place, make latch-locking 7 not only in the lockhole of upper lock key seat 6, but also in the lockhole of upper pendulum lock pin seat 8 In, the interlocking of lock key seat 6 and upper pendulum lock pin seat 8, then locks in foundation；To reinforce window intensity, it is arranged in thereabout Reinforcing rib 5, the reinforcing rib 5, which is extended to, connect load-bearing with carriage supporting frame 4；In lifting device carriage supporting frame 4 Safety belt fixed ring 36 is set on upper Beam, to increase by one layer of safeguard protection to maintenance work personnel；The maintenance platform Lifting device must be implemented to brake in safety catch, after confirmation lifting device is reliably braked, just can be carried out and organize work.

To guarantee safety, it is described have can folding and unfolding maintenance platform lifting device chain, the institute that is provided with mechanical electric It includes 1 that the mechanical electric stated is chain, and the only upper reset of working panel 2 is bonded in place with lifting device carriage side panel 1, stroke Switch SQ1 could be closed；2, only latch-locking 7 enters upper pendulum lock pin seat 8 and in place, and travel switch SQ2 could be closed；3, only The middle reset of working panel 3 is bonded in place with lifting device carriage side panel 1, and travel switch SQ3 could be closed；4, only middle lock pin 19 enter in pendulum lock pin seat 18 and in place, travel switch SQ4 could be closed；5, the upper pendulum lock pin seat 8 of only upper working panel 2 with In place, travel switch SQ5 could be closed for the lower alignment of lock key seat 31；6, only play lock pin 32 to pass through the lockhole of lower lock key seat 31 Into in the lockhole of upper pendulum lock pin seat 8 and in place, travel switch SQ6 could be closed；The travel switch is normally opened contact Type；Travel switch SQ1 and travel switch SQ2 normally opened contact series control relay KA1, travel switch SQ3 and travel switch SQ4 Normally opened contact series control relay KA2, travel switch SQ5 and travel switch SQ6 normally opened contact series control relay KA3； The normally opened contact of relay KA1 and relay KA2 controls A.C. contactor KM1, and the normally opened main contacts control lifting device of KM1 is total The normally opened contact of power supply of the power supply to lifting device whole power-equipment, relay KA2 and relay KA3 control A.C. contactor Power supply of the normally opened main contacts control lifting device general supply to lifting device low speed power device systems of KM2, KM2, KM1 with The input terminal of the normally opened main contacts of KM2 is parallel to lifting device general supply；Figure 19 is that the travel switch normally opened contact controls The circuit diagram of relay coil, Figure 20 are the circuit diagram of relay normally open contact control contactor coil.

To adapt to the limited actual conditions in lifting device cab interior space, the upper working panel 2 and upper working face Plate hinge 9 rotates around upper working panel hinge axis 12, reaches the process of some position, including, upper working panel 2 and upper working face Plate hinge 9 directly rotates around upper working panel hinge axis 12, reaches some position, or first upper working panel hinge axis 12 is unloaded Out, so that upper working panel 2 and upper working panel hinge 9 is reached some position by proper method again and then make upper working panel Hinge axis 12 resets；Described draws off upper working panel hinge axis 12, including, drawn off from upper working panel hinge 9 or It draws off from upper working panel hinge seat 11 or is drawn off from the two；Method appropriate can thus be chosen, not with In the case that the other components of lifting device cab interior interfere, reach working panel 2 and upper working panel hinge 9 Desired position.

The plate face shape of the right side backplate 27, left side backplate 28, including whole plate shape or railing shape (mitigating weight) or grille-like (mitigating weight) or railing add blocking net shape (not only to mitigate weight but also prevented fines Body leaves) or grid add blocking net shape (not only mitigated weight but also prevented small objects from leaving).

Each possible braking of lifting device of individual secure brake apparatus is pushed to stop using levels electromagnetic of the present invention By the distance between point it is the integral multiple of its drive rack tooth pitch (p=π m), therefore is configured with safety catch of the invention The installation method of lifting device include, when carrying out and install related civil construction early period, it is necessary to by stop and stop Difference in height carry out precise measurement, constructed and accurately controlled between stop and stop on sill to each stop sill accordingly The difference in height of plane is the integral multiple of drive rack tooth pitch (p=π m), according to the regulation of GB/T10058, allowable error is ± 10mm (construction internally controlling requirement should be less than this error amount)；It is correct to adjust lifting device and sliding tooth in lifting device installation Item is worked in coordination, so that lifting device carriage just stops leveling accuracy from first layer and in median, then later stop Leveling can meet the requirements, or even when other individual leveling element failures, also can guarantee stop leveling accuracy； And the requirement that leveling keeps precision that can be much better than ± 20mm as defined in GB/T10058

Individual secure brake apparatus is arranged in the present invention on lifting device, carries out safeguard protection system using rack gear engagement system It is dynamic, the reliability of safety arrestment is improved, creates premise for maintainable technology on-orbit work；Be conducive to mitigate certainly using electromagnetism puller Weight；Horizontal direction configuration can save the useful space in carriage with top set or bottom setting installation；Rack gear engages leveling and protects Holding precision can achieve the requirement for being much better than ± 20mm as defined in GB/T10058；Setting can folding and unfolding maintenance platform, both adapted to Lifting device carriage and to be checked or maintenance equipment the case where being closer, also adapt to lifting device carriage with it is to be checked Or the equipment distance of maintenance farther out the case where, the case where especially a distance is close, a distance remote cross occurrence, can make The reasonable operating position of maintenance work personnel selection works, and is conducive to improve maintenance work efficiency and work quality；Even if Meet midway in apart from level position farther out when there is a situation where problems, also can on-call maintenance, guarantee that lifting device is moved to Home continues to operate normally, and therefore, can play and save the useful space, improve langding accuracy, improve working efficiency And work quality, improve the beneficial effect of safeguard protection degree.

Detailed description of the invention

Fig. 1 is the signal for the individual secure brake apparatus that the worm and gear bispin bolt and nut drives movable rack Figure.

Fig. 2 is the schematic diagram that individual secure brake apparatus described in Fig. 1 is in free position state.

Fig. 3 is that the highest point of rack gear and the status diagram of highest point contact may occur when braking.

Fig. 4 be when left movable rack, right movable rack and lifting device drive rack relatively slide to be staggered highest point and When the position of highest point, the operation rocking bar of worm and gear gearbox is operated, follows left movable rack, right movable rack closely crowded Enter the schematic diagram in the tooth socket of drive rack.

Fig. 5 is the structural schematic diagram that a kind of rack-and-pinion lifting device levels electromagnetic pulls safety catch.

Fig. 6 is schematic diagram of the releasing braking in free state that levels electromagnetic shown in fig. 5 pulls safety catch.

Fig. 7 is the A-A partial sectional view of Fig. 5.

Fig. 8 is in lifting device drive rack for the movable rack that view direction same as shown in Figure 7 is shown and separates The schematic diagram of state.

Fig. 9 is the B-B partial sectional view of Fig. 5

Figure 10 is the C-C partial sectional view direction of Fig. 5, and highest point and the highest point contact of rack gear may occur when braking Status diagram.

Figure 11 is the same view direction of Figure 10, when left movable rack, right movable rack squeeze into lifting under elastic force promotion Schematic diagram in the tooth socket of device drives rack gear.

A kind of schematic front view of structure of the configuration of maintenance platform described in Figure 12 on rack-and-pinion lifting device.

Figure 13 is the schematic front view that the maintenance platform of Figure 12 is packed up.

The maintenance platform that Figure 14 is Figure 12 expands into main view when the first working condition.

Figure 15 is the left view partial schematic sectional view of Figure 13.

Figure 16 is the left view partial schematic sectional view of Figure 14.

Figure 17 is the left view partial sectional view of Figure 12.

Figure 18 is the left view of the D-D broken section of Figure 12.

Figure 19 is the circuit diagram that travel switch normally opened contact controls relay coil.

Figure 20 is the circuit diagram of relay normally open contact control contactor coil.

Figure 21 is the rack-and-pinion lifting device for being equipped with rack-and-pinion lifting device maintainable technology on-orbit and supporting device, packs up dimension Workbench is repaired, on-position is released and prepares starting operation, or be currently running the appearance diagram of state.

Specific embodiment

Embodiment 1, Figure 17 are the schematic diagram of embodiment 1, support dress for the rack-and-pinion lifting device maintainable technology on-orbit It sets and is mounted on rack-and-pinion lifting device, pack up maintenance platform, release on-position and prepare starting operation, or transporting The appearance diagram of row state；Figure 12, Figure 13, Figure 14 are also the schematic diagram of embodiment 1, are repaired when Figure 13 is shown in the braking state The case where the case where workbench is packed up, maintenance platform expands into the first working condition when Figure 14 is shown in the braking state, figure 12 displays in the braking state when maintenance platform the case where expanding into second of working condition；The rack-and-pinion lifting device Maintainable technology on-orbit supports device, and configuration is that a kind of levels electromagnetic both ends individual secure brake apparatus and one kind can folding and unfolding maintenance mans Make platform；What described levels electromagnetic pulling its internal structure each section of individual secure brake apparatus was formed and acted on illustrates to see Fig. 5 Shown in~11, and [0006] section, [0007] section, [0008] section, [described in 0009 section；It is described can folding and unfolding maintenance platform its Internal structure each section composition and effect illustrate as shown in Figure 12~20, and [0010] section, [0011] section, [0012] section, [0013] section, [0014] section, [0015] section, described in [0016] section；The plate face shape of the right side backplate 27 of use, left side backplate 28 For railing plus blocking net shape, safety belt fixed ring 36 is set on the upper Beam of lifting device carriage supporting frame 4, in manufacture and It should be specifically noted that manufacturing quality and installation quality when installation, including must ready-made include accurately controlling layer described in [0017] section Standing between stop, the difference in height of plane is the related work of the integral multiple of drive rack tooth pitch (p=π m) on sill, and guarantee must The precision of palpus could trial operation after detection is qualified；The electric control system of lifting device is using embedded system as master control system System, the course of work is, when electromagnetism puller 71 power loss of main body, disappears to the electromagnet pull of electromagnetic draw bar 72, electromagnetic draw bar 72, which pass through kidney slot 73, pulling block 75, pull rod 76 with the transmission pivot pin 74 that is fixed thereon, is transferred to the pulling force of jacking block 80 also simultaneously It disappears, jacking block 80 is moved forward by the elastic force effect of spring 78 and pull rod 76, pulling block 75 is driven to move forward together, is fixed on jacking block 80 Movable axis 91 follow the Forward of jacking block 80, the open end of left single-arm lever 101 being driven around on movable axis 91 and right single armed The open end of lever 107 moves forward, and drives the hinge component of left single-arm lever 101, left movable mandrel 102 and left double-arm lever 104, With the hinge component of right single-arm lever 107, right movable mandrel 106 and right double-arm lever 105, rotated around fixing axle 103, left both arms Lever 104, right double-arm lever 105 rear end opened toward the left and right sides, left double-arm lever front end drives left movable rack 83, right double Arm bar front end drives right movable rack 87 mobile toward 88 center position of lifting device drive rack, until driving with lifting device The at a fully engaged application position of rack gear 88 brakes lifting device；At the same time, electromagnetic draw bar 72 is multiple inside electromagnetism puller It is resetted forward under the action of the mechanism of position, reaching, which makes to be driven pivot pin 74 and 73 front and back arc surface of kidney slot, the position in gap；When When electromagnetism puller main body 771 obtains electric, the electromagnet pull of electromagnetic draw bar 72 is generated, electromagnetic draw bar 72 and the biography being fixed thereon Moving axis pin 74 pulls pulling block 75, pull rod 76, jacking block shifting after 80s, while compressed spring 78 by kidney slot 73, is fixed on jacking block 80 On movable axis 91 follow jacking block it is after 80s move pull simultaneously the open end of left single-arm lever 101 being centered around on movable axis 91 and The open end of right single-arm lever 107 moves back, while pulling the rear end of left double-arm lever 104, right double-arm lever 105 from the left and right sides It is mobile toward centre, left double-arm lever front end drive left movable rack 83, right double-arm lever front end drive right movable rack 87 toward from The direction for opening 88 center of lifting device drive rack is mobile, until being kept completely separate and having a bit of with lifting device drive rack 88 The free position in gap；The a bit of gap, refers to the gap 2~5mm；Adjusting nut group 79 is used for the pressure of adjustment spring 78 Power, the rearmost position of the rear end face of 77 fixed spring 79 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, and after the completion of energy storage device delay, electromagnetism puller main body power loss draws electromagnetism The electromagnet pull disappearance of bar 72, the Forward of jacking block 80, left movable rack 83, right movable rack 87 and 88 positive engagement of drive rack, It ensure that the safety of lifting device；In the case of emergency braking, left movable rack 83, right movable rack 87 at the beginning may be with drivings Rack gear 88 does not have at a fully engaged, and highest point and the highest of rack gear may occur when worst situation is braking as shown in Figure 10 The case where point contact, temporarily becomes friction catch under the effect of elasticity at this time, if lifting device whole brake apparatus at this time Braking moment, which adds up, is enough to realize braking, and braking task is completed；If the brake force of lifting device whole brake apparatus at this time Square, which adds up, is all not enough to prevent lifting device downslide, (because there is braking moment effect, it is relatively more slow just to start the meeting of downslide Slowly), when slipping down to the position of be staggered highest point and highest point, left movable rack 83, right movable rack 87 will be pushed away in elastic force It is squeezed under dynamic in the tooth socket of drive rack 88 (referring to Figure 11), then as continuing to glide, continues to squeeze into, until left movable rack 83, right movable rack 87 and 88 positive engagement of drive rack, implement braking；When needing to check or repair, it is necessary to which confirmation is only After vertical safety catch reliably brakes fixation, maintenance platform could be unfolded；When maintenance platform is unfolded, first can be received It puts maintenance platform and expands into the first working condition, maintenance window occurs；Middle working panel 3 resets and lifting device sedan-chair at this time Compartment side panel 1 be bonded in place, travel switch SQ3 closure, middle lock pin 19 enter in pendulum lock pin seat 18 and in place, travel switch SQ4 Closure, travel switch SQ3 and travel switch SQ4 normally opened contact, which is closed, to be controlled relay KA2 coil and obtains that electric, relay KA2 is normal Open contact closure；The upper pendulum lock pin seat 8 of upper working panel 2 be aligned with lower lock key seat 31 in place, travel switch SQ5 closure, under Lock pin 32 is entered in the lockhole of upper pendulum lock pin seat 8 and in place by the lockhole of lower lock key seat 31, and travel switch SQ6 closure is capable Cheng Kaiguan SQ5 and travel switch SQ6 normally opened contact is closed control relay KA3 coil and obtains electric, relay KA3 normally opened contact and close It closes；The coil that the normally opened contact of relay KA2 and relay KA3 is closed control A.C. contactor KM2 obtain it is electric so that KM2 Normally opened main contacts closure control lifting device general supply is powered lifting device low speed power device systems；The first work After state is reliably unfolded, according to the needs of maintenance work, braking can be released, low speed carries out tours of inspection；Maintenance work personnel In face of maintenance window in carriage, I is manipulated or cooperation personnel manipulate the movement of lifting device carriage low speed, tours of inspection, or Zhe Ting Commissioning goes through, repairs；When need check or repair equipment distance elevating equipment carriage side panel 1 farther out when, then Maintenance platform is expanded into second of working condition；After expansion, before staff not yet goes up on the stage, plastic boot 33 is sleeved on Working panel 3 exposes in the end of lifting device cab interior, and has dressed safety belt, and it is solid to check that confirmation is fixed on safety belt Determine the safety belt fixed end state normal reliable on ring 36, then climbs up maintenance platform again and carry out operation；Maintenance work is completed Afterwards, should pack up in time can folding and unfolding workbench；Figure 21 is the gear for being equipped with rack-and-pinion lifting device maintainable technology on-orbit and supporting device Gear rack elevating equipment, packs up maintenance platform, releases on-position and prepares starting operation, or is currently running the appearance of state and shows It is intended to；Due to being provided with electrical interlocks, when certain accidental cause causes non-Ting Commissioning just to carry out the operation of expansion maintenance platform, The electric control system of lifting device brakes the power supply , Ting Commissioning for automatically cutting off power device, guarantees safety.

Embodiment 2, a kind of rack-and-pinion electricity for being mounted with rack-and-pinion lifting device maintainable technology on-orbit of the present invention and supporting device Ladder, the levels electromagnetic pull its internal structure each section of individual secure brake apparatus composition and effect illustrate to see Fig. 5~ Shown in 11, and [0006] section, [0007] section, [0008] section, [described in 0009 section；It is described can folding and unfolding maintenance platform in it Portion's structure each section composition and effect illustrate as shown in Figure 12~20, and [0010] section, [0011] section, [0012] section, [0013] section, [0014] section, [0015] section, described in [0016] section；Same Figure 12, Figure 13 of outside drawing when its different working condition, Figure 14, Figure 21；Working principle and [0034] section are described identical.

In order to illustrate the present invention, this specification illustrates some specific structures and data, these are provided to illustrate And it is non-limiting, it is complete caused by various changes, replacement and the change done within the scope of the basic thought of the claims in the present invention Portion or part equivalent, all within the scope of the invention as claimed.

Claims (8)

1. a kind of rack-and-pinion lifting device maintainable technology on-orbit supports device, characterized in that braked including at least one individual secure Device and at least one maintenance platform；The individual secure brake apparatus refers to the driving system for not depending on lifting device System, independent realize carry out the fixed safety catch of reliable braking to rack-and-pinion lifting device；The individual secure system Dynamic device, including a kind of worm and gear bispin bolt and nut driving movable rack independent brake device；Or a kind of water Ordinary telegram magnetic pulls individual secure brake apparatus；The levels electromagnetic pulls individual secure brake apparatus, and device presses horizontal direction Configuration, for installation site in lifting device car top or bottom or other reasonable positions, composition includes load receiving part Part, rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, movable rack operating mechanism Control device, hand-operating unlocking mechanism；The control device of the operating mechanism of its movable rack includes electromagnetism puller, the electricity The control system of magnetic puller is powered and is controlled by lifting device electric control system；The maintenance platform includes that can receive Put maintenance platform；It is described can folding and unfolding maintenance platform there is collapsed state and unfolded state, the unfolded state includes, The first working condition is expanded into, or expands into second of working condition；The first described working condition, including, it is rising It drops and constructs maintenance work window on the side panel of equipment, staff may stand in lifting device carriage, pass through window pair The outer closer equipment of distance of lifting device carriage is checked or is repaired；Second of working condition, is included in lifting Maintenance work window is constructed on the side panel of equipment, and stretches out the workbench outside lifting device side panel, staff It may stand on workbench, the farther away equipment of distance outside lifting device carriage checked or repaired；To guarantee safety, It is described have can the lifting device of folding and unfolding maintenance platform to be provided with mechanical electric chain；

The independent brake device of the worm and gear bispin bolt and nut driving movable rack, including, rail assembly, movable teeth The operating mechanism of item, movable rack；The rail assembly include track window aperture, guide plate, load-supporting part and upper rail and under The horizontal rail that rail is formed, the movable rack include right movable rack and left movable rack, the right movable rack and Left movable rack passes through track window aperture, and the tooth form for the part of movable rack being associated with the drive rack of lifting device is in It can be engaged with the drive rack of lifting device or isolated position, right movable rack and left movable rack top are entering system Load-bearing, the inner face top for the part of movable rack being associated with guide rail are directly contacted after dynamic state with load-supporting part and upper rail Or at least one direction of lower section is provided with guide groove, the mating part of guide groove and guide plate is dynamic cooperation, to prevent activity Outside or inside play of the rack gear to carriage；The operating mechanism of the movable rack includes worm and gear gearbox, worm gear Worm screw transmission operation rocking bar, bispin screw rod, left-handed nut, left-handed nut regulation handle, right-handed nut, right-handed nut adjust hand Handle；Bispin spiral shell worm and wheel is fixedly connected, and the left movable rack of left-handed nut is fixedly connected, and the right movable rack of right-handed nut is fixed to be connected It connects；Its course of work is, when lifting device operates normally, the worm and gear bispin bolt and nut drives the only of movable rack Vertical safety catch is in free position, has no effect to the normal operation of lifting device；When lifting device needs to hover When maintenance, after other brake apparatus brake lifting device, manual operation worm and gear transmission operation rocking bar, worm-drive snail Wheel, worm gear drive the rotation of bispin screw rod, and bispin screw drive left-handed nut, right-handed nut are mobile toward close drive rack direction, Left-handed nut drives left movable rack, right-handed nut to drive right movable rack mobile toward close drive rack direction simultaneously, until With drive rack positive engagement, at this moment braked by the individual secure of the worm and gear bispin bolt and nut driving movable rack Device undertakes braking pinned task, includes that driving gear all liberate that be in can service mode the dynamical system of lifting device；So Expansion maintenance platform repairs operation afterwards.

2. rack-and-pinion lifting device maintainable technology on-orbit according to claim 1 supports device, characterized in that the load-bearing Component includes direct load-supporting part or middle transition load-supporting part；The rail assembly include track window aperture, guide plate, The horizontal rail that load-supporting part and upper rail and lower rail are formed, the movable rack include right movable rack and left movable rack, The right movable rack and left movable rack pass through track window aperture, and movable rack is connected with the drive rack of lifting device The tooth form of the part of system be in can with the drive rack of lifting device engage or isolated position, by rail assembly It moves horizontally or is maintained at and realize and the engagement of drive rack or separate, the position of the determination on the position of certain determinations It sets, is kept completely separate and has including the application position engaged with lifting device drive rack or with lifting device drive rack The free position in one section of gap, described has one section of gap, refers to drive rack and movable rack tooth top plane corresponding thereto Between have >=the gap 2mm；Movable rack and the fit dimension of horizontal rail are dynamic cooperation, and contact surface is smooth low-friction coefficient table Face, to be conducive to the movement of movable rack, at the top of right movable rack and left movable rack after entering on-position with load receiving part Part and upper rail directly contact load-bearing；The position-limit mechanism of the movable rack includes the portion of movable rack being associated with guide rail Point at least one direction of inner face either above or below be provided with guide groove, the mating part of guide groove and guide plate is dynamic matches It closes, to prevent outside or inside play of the movable rack to carriage；At the top of movable rack after entering on-position with lifting The load-supporting part of equipment carriage directly contacts or contacts load-bearing by middle transition load-supporting part；The operating mechanism of movable rack Manipulation activities rack gear is moved horizontally or is stopped on orbit hole on the position for being maintained at certain determinations, the movable rack Operating mechanism is arranged in the support structure in horizontal plane direction of lifting device carriage, and the rack-and-pinion lifting device is horizontal Formula safety catch, installation site include the top or bottom or other reasonable positions of carriage；The activity The control device of the operating mechanism of rack gear includes electromagnetism puller, the electromagnetism puller, is for a kind of selected working method The long-stroke push-and-pull electromagnet of pulling, is a kind of novel Electromagnetic Control actuator part, is powered on control conversion using power supply, greatly Energetic start up, the working method that small-power maintains, the old-fashioned electromagnet volume of active force more onesize than generation is smaller, is self-possessed more Gently, more power saving；The electromagnetic driver includes pull rod, electromagnetism puller main body, and the electromagnetism puller main body includes electricity The electromagnetic system of magnetic puller, control system；The operating mechanism of the movable rack, including, it is driven pivot pin, pulling block is being drawn The kidney slot being arranged on block, pull rod, bracket, spring, adjusting nut group, jacking block, movable axis, left single-arm lever, left movable mandrel With the hinge component of left double-arm lever, the hinge component of right single-arm lever, right movable mandrel and right double-arm lever, fixing axle；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, electromagnetism puller main body, the electromagnetism puller main body include that electromagnetism pulls The electromagnetic system of device, control system, the control system of the electromagnetism puller by the power supply of lifting device electric control system and Control；It further include one in the control unit of the electromagnetism puller of the lifting device electric control system only by general supply control The contactor of system perhaps the combination of relay adjunction tentaculum and the energy storage device only contactor that is controlled by general supply or after The normally-closed contact of electric appliance adjunction tentaculum combination is connected across between electromagnetism puller and energy storage device, normally closed when lifting device obtains electric Contact disconnects, and the connection between electromagnetism puller and energy storage device also disconnects, energy storage device energy storage；When lifting device power loss, Its electricity-loss braking device includes that the included power loss band brake apparatus of motor plays a role braking immediately, but electromagnetism puller is not The normally-closed contact power loss of power loss immediately, the contactor only controlled by general supply or the combination of relay adjunction tentaculum is closed It closes, connect electromagnetism puller with energy storage device, energy storage device is it to the delay time constant design tuning of electromagnetism puller Its electricity-loss braking device individually completes the dynamic of the operating mechanism of the braking time that braking needs and electromagnetism puller and movable rack Make the difference of total delay time；After the completion of energy storage device delay, electromagnetism puller power loss；When lifting device general supply is disconnected without electricity When, lifting device remains static；The actual motion direction of the operating mechanism of the movable rack is direction along the horizontal plane, It is clear to describe, it defines, before drive rack direction is, after electromagnetism puller main direction is, is moved to drive rack direction herein It moves to move forward, mobile to electromagnetism puller main direction is to move back；The operating mechanism course of work of movable rack is, when electromagnetism is drawn When dynamic device main body power loss, disappear to the electromagnet pull of electromagnetic draw bar, electromagnetic draw bar and the transmission pivot pin being fixed thereon pass through waist Shape hole, pulling block, pull rod are transferred to the pulling force of jacking block also while disappearing, and jacking block is moved forward by the elastic force effect of spring and drives drawing Bar, pulling block move forward together, and the movable axis being fixed on jacking block follows jacking block Forward, the left single armed thick stick being driven around on movable axis The open end of bar and the Forward of the open end of right single-arm lever drive the hinge of left single-arm lever, left movable mandrel and left double-arm lever The hinge component of chain component and right single-arm lever, right movable mandrel and right double-arm lever, rotates around fixing axle, left double-arm lever, The rear end of right 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 front end band Right movable rack is moved toward the movement of lifting device drive rack center position, until the system at a fully engaged with lifting device drive rack Dynamic position, brakes lifting device；At the same time, electromagnetic draw bar is multiple forward under the action of electromagnetism puller internal reset mechanism Position reaches the position that arc surface before and after making to be driven pivot pin and kidney slot has 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 moves back, while compressed spring, and the movable axis being fixed on jacking block follows jacking block to move back while pulling and is centered around on movable axis The open end of left single-arm lever and the open end of right single-arm lever move back, while after pulling left double-arm lever, right double-arm lever End is mobile toward centre from the left and right sides, and left double-arm lever front end drives left movable rack, right double-arm lever front end to drive right 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 rearmost position of the rear end face of bracket fixed spring；If there is abnormal conditions, including the unexpected power down of lifting device or 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 Forward, left movable rack, right movable rack and drive rack positive engagement, ensure that the peace of lifting device Entirely.

3. rack-and-pinion lifting device maintainable technology on-orbit according to claim 1 supports device, characterized in that described is manual Unlocking mechanism, including, clasp nut control crank, clasp nut combination, drive screw, worm screw control crank, worm and gear subtract Fast device, wherein clasp nut combination with pulling block be fixedly connected, the worm gear of drive screw and worm type of reduction gearing is fixed company It connects, 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 transmission The male thread of screw rod has no effect without the movement that engagement, drive screw combine clasp nut, thus hand-operating unlocking mechanism pair Rack-and-pinion lifting device levels electromagnetic pulls the movement of safety catch to have no effect, 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 backward, clasp nut combination drives jacking block to move backward, and jacking block moves back, while compressed spring, fixed Movable axis on jacking block follow jacking block to move back and meanwhile pull the left single-arm lever being centered around on movable axis open end and right list The open end of arm bar moves back, while pulling the rear end of left double-arm lever, right double-arm lever mobile toward centre from the left and right sides, left Double-arm lever front end drives left movable rack, right double-arm lever front end to drive right movable rack is past to leave lifting device drive rack The direction at center is mobile, until the free position in a bit of gap is kept completely separate and had with lifting device drive rack；Then make With Manual jigger mechanism, make the nearest leveling of lifting device；The hand-operating unlocking mechanism is necessarily placed at securely and reliably cannot be with The position that meaning is opened, has formulated rules and regulations and has strictly implemented, it is ensured that only had qualification, authorized personnel's ability It opens and uses.

4. rack-and-pinion lifting device maintainable technology on-orbit according to claim 1 supports device, characterized in that its electrical control It include that, when lifting device prepares to start, the electric control system of lifting device controls lifting device in the rate-determining steps of system Drive system driving lifting device moves up a distance element, makes lower plane and right movable rack and the left activity of load-supporting part The upper plane of rack gear has a microgap, and the numerical value of the microgap is left movable rack, right movable rack and lifting device 0.2~0.6 times of drive rack sideshake；Then control electromagnetism puller main body obtains electric, drives left movable rack, right movable rack It is mobile toward the direction for leaving lifting device drive rack center, until being kept completely separate and having a bit of with lifting device drive rack The free position in gap is ready for lifting device starting.

5. rack-and-pinion lifting device maintainable technology on-orbit according to claim 1 supports device, characterized in that described receives Put maintenance platform, including, upper working panel, middle working panel, maintenance platform reinforcing rib, upper lock key seat, latch-locking, on Pendulum lock pin seat, upper working panel hinge, pull-up pole socket, upper working panel hinge seat, upper working panel hinge axis, upper pin, on Pull rod, middle lock key seat, lower draw-bar seat, middle pendulum lock pin seat, middle lock pin, lower bearing pin, lower pull rod, middle pin shaft, middle working panel hinge Chain, middle working panel hinge axis, right side backplate guide rail, right side backplate, left side backplate, left side backplate guide rail, lower lock key seat, under Lock pin, plastic boot；When it is time for repair, first control safety catch is implemented to brake to lifting device, and confirmation lifting device can After braking, maintenance platform could be unfolded；The working condition of maintenance platform expansion includes the first working condition or the Two kinds of working conditions；It is described can position of the folding and unfolding maintenance platform in lifting device carriage, according to entire lifting device system The actual conditions of the positional relationship of equipment and carriage that possibility in system needs to check or repair determine, can be set in centre Position also can be set in other suitable positions；

Can folding and unfolding maintenance platform to expand into the process of the first working condition include unlocking first, make latch-locking from upper dynamic lock It is exited in key seat, unlocks the interlocking of lock key seat Yu upper pendulum lock pin seat, make working panel and upper working panel hinge around upper Working panel hinge axis, varus, which reach the face that former top is under, original is below outside upper, former direction, to be become towards inner face Position, while lower lock pin entered in the lockhole of upper pendulum lock pin seat by the lockhole of lower lock key seat and in place, make lower lock pin Seat is interlocked with upper pendulum lock pin seat, is then locked；At this point, constructing maintenance work window, staff may stand in lifting device In carriage, the state of lifting device carriage external equipment is checked by window, the equipment found the problem is repaired；

Can folding and unfolding maintenance platform expand into second of working condition process include two kinds of situations, the first situation, Expanding into reinflated in the case where the first working condition is second of working condition, then, the first step, to lower lock key seat with it is upper The interlocking of pendulum lock pin seat unlocks, and exits lower lock pin from upper pendulum lock pin seat, unlocks the connection of lower lock key seat Yu upper pendulum lock pin seat Lock；The interlocking of second step, centering lock key seat and middle pendulum lock pin seat unlocks, and middle lock pin is made therefrom to exit in pendulum lock pin seat, unlock The interlocking of middle lock key seat and middle pendulum lock pin seat；Third step makes working panel and upper working panel hinge, upper working panel hinge Chain rivet follows middle working panel and middle working panel hinge around middle working panel hinge axis, turns up, while by being fixed on Lower draw-bar seat on middle working panel pulls lower bearing pin and relatively rotates, and lower bearing pin pulls lower pull rod and relatively rotates, lower pull rod It pin shaft and is relatively rotated in pulling, middle pin shaft pulls upper connecting rod simultaneously to relatively rotate, and upper connecting rod is simultaneously around being fixed on upper connecting rod bore In upper pin rotation；When the center line angle of cut of upper connecting rod and lower pull rod forms 180 °, middle working panel turns to limit position It sets, the extreme position is designed as horizontal position；4th step is led to left side backplate by left side backplate guide rail, right side backplate It crosses right side backplate guide rail and is pushed to the position that vertical side plate behind touches reinforcing rib, then fasten, the form packet of fastening Include screw fastening or other fastening forms, the left side backplate, right side backplate subsequent vertical side plate be parallel to side Plate extends beyond the position of reinforcing rib 10mm to the left and right；5th step, make working panel and upper working panel hinge around Upper working panel hinge axis is turned up, until the vertical edges before upper working panel contact left side backplate, right side backplate Then plate fastens, the form of fastening includes screw fastening or other fastening forms, the left side backplate, right side backplate The vertical side plate of front is parallel to side panel extends beyond 60mm position on the inside of to the left and right；Plastic boot is pressed in maintenance platform After being unfolded according to second of working condition, before staff not yet goes up on the stage, it is sleeved on middle working panel and exposes in lifting device carriage Internal end, the scuffing that may cause with preventing middle working panel 3 from exposing in the end of lifting device cab interior, works as maintenance Before workbench is packed up, plastic boot is unloaded, so that middle working panel smoothly packs up reset, the plastic boot unloaded should be protected properly It deposits；

Second situation, starts to spread out when not yet expanding into the first working condition, directly expands into second from collapsed state Kind working condition, then, the first step first unlocks the interlocking of upper lock key seat and upper pendulum lock pin seat, makes latch-locking from upper dynamic lock It is exited in key seat, unlocks the interlocking of lock key seat Yu upper pendulum lock pin seat, then make working panel and upper working panel hinge Reaching the face that former top is under, original is below outside upper, former direction around upper working panel hinge axis, varus becomes towards inner The position in face；The interlocking of second step, centering lock key seat and middle pendulum lock pin seat unlocks, and moves back middle lock pin therefrom in pendulum lock pin seat Out, the interlocking of middle lock key seat Yu middle pendulum lock pin seat is unlocked；Third step makes working panel and upper working panel hinge, upper work Make panel pivot axis to follow middle working panel and middle working panel hinge around middle working panel hinge axis, turn up, lead to simultaneously It crosses the lower draw-bar seat being fixed on middle working panel to pull lower bearing pin and relatively rotate, lower bearing pin pulls lower pull rod and turns relatively It is dynamic, lower pull rod pull in pin shaft and relatively rotate, middle pin shaft pulls upper connecting rod simultaneously to relatively rotate, and upper connecting rod is simultaneously on being fixed on Upper pin rotation in pull rod bore；When the center line angle of cut of upper connecting rod and lower pull rod forms 180 °, middle working panel rotation To extreme position, the extreme position is designed as horizontal position；Left side backplate is passed through left side backplate guide rail, the right side by the 4th step Side guard plate is pushed to the position that vertical side plate behind touches reinforcing rib by right side backplate guide rail, then fastens, fastening Form include screw fastening or other fastening forms, the left side backplate, the subsequent vertical side plate of right side backplate are flat Row extends beyond the position of reinforcing rib 10mm in lifting device side panel to the left and right；5th step, make working panel and Upper working panel hinge around upper working panel hinge axis, turn up, until upper working panel contact left side backplate, right side backplate Before vertical side plate, then fasten, the form of fastening includes screw fastening or other fastening forms, the described left side shield Vertical side plate before plate, right side backplate is parallel to lifting device side panel extends beyond 60mm position on the inside of to the left and right It sets；Plastic boot before staff not yet goes up on the stage, is sleeved on middle work after maintenance platform is unfolded according to second of working condition Panel exposes in the end of lifting device cab interior, to prevent middle working panel from exposing in the end of lifting device cab interior Possible scuffing unloads plastic boot before maintenance platform is packed up, and so that middle working panel smoothly packs up reset, unloads Plastic boot should properly save；Maintenance platform should be packed up in time after the completion of maintenance work, the process packed up according to and expansion The opposite sequence of process carries out, until reaching working panel, the position that middle working panel is bonded completely with the side panel of carriage； Then make middle lock pin enter in pendulum lock pin seat and in place, make middle lock pin not only in the lockhole of middle lock key seat, but also in middle pendulum lock pin In the lockhole of seat, the interlocking of lock key seat and middle pendulum lock pin seat, is then locked in foundation；Then, latch-locking is made to enter upper dynamic lock Key seat and in place, makes latch-locking not only in the lockhole of upper lock key seat, but also in the lockhole of upper pendulum lock pin seat, lock pin in foundation The interlocking of seat and upper pendulum lock pin seat, then locks；To reinforce window intensity, reinforcing rib, the reinforcement are set in thereabout Muscle, which is extended to, connect load-bearing with carriage supporting frame；

The upper working panel and upper working panel hinge around upper working panel hinge axis, reach the mistake of some position Journey, including, upper working panel and upper working panel hinge directly around upper working panel hinge axis, reach some position, or Person first draws off upper working panel hinge axis, so that upper working panel and upper working panel hinge is reached some by proper method again Then position resets working panel hinge axis；Described draws off upper working panel hinge axis, including, from upper working face It is drawn off in plate hinge or draws off from upper working panel hinge seat or drawn off from the two；It can thus choose suitable When method make working panel and upper work in the case where not interfering with the other components of lifting device cab interior Reach desired position as panel pivot；The plate face shape of the right side backplate, left side backplate, including whole plate shape, Or railing shape or grille-like or railing add blocking net shape or grid to add blocking net shape；It is set in lifting Safety belt fixed ring is set on the upper Beam of standby carriage supporting frame, to increase by one layer of safeguard protection to maintenance work personnel；Institute The maintenance platform stated must be implemented to brake in safety catch to lifting device, after confirmation lifting device is reliably braked, It can be carried out and organize work.

6. rack-and-pinion lifting device maintainable technology on-orbit according to claim 1 supports device, characterized in that described has Can the lifting device of folding and unfolding maintenance platform to be provided with mechanical electric chain, including, 1, only upper working panel resets and lifting In place, travel switch SQ1 could be closed equipment cage side panel attachment；2, only latch-locking enters upper pendulum lock pin seat and in place, Travel switch SQ2 could be closed；3, only middle working panel is resetted with lifting device cage side panel attachment in place, travel switch SQ3 could be closed；4, only in lock pin enter in pendulum lock pin seat and in place, travel switch SQ4 could be closed；5, only upper work The upper pendulum lock pin seat of panel is aligned in place with lower lock key seat, and travel switch SQ5 could be closed；6, only play lock pin to pass through lower fixed The lockhole of locking pin seat enter upper pendulum lock pin seat lockhole in and in place, travel switch SQ6 could be closed；The travel switch is equal For normally opened contact type；Travel switch SQ1 and travel switch SQ2 normally opened contact series control relay KA1, travel switch SQ3 with Travel switch SQ4 normally opened contact series control relay KA2, travel switch SQ5 and travel switch SQ6 normally opened contact series control Relay KA3；The normally opened main contacts of normally opened contact series control the A.C. contactor KM1, KM1 of relay KA1 and relay KA2 Control power supply of the lifting device general supply to lifting device whole power-equipment, the normally opened contact of relay KA2 and relay KA3 The normally opened main contacts control lifting device general supply of series control A.C. contactor KM2, KM2 are to lifting device low speed power equipment The input terminal of the normally opened main contacts of the power supply of system, KM1 and KM2 is parallel to lifting device general supply.

7. rack-and-pinion lifting device maintainable technology on-orbit according to claim 1 supports device, characterized in that be configured with this hair The installation method of the rack-and-pinion lifting device of bright support enroute maintenance includes carrying out and installing related civil construction early period When, it is necessary to precise measurement is carried out by the difference in height to stop and stop, is constructed to each stop sill and is accurately controlled accordingly The difference in height of plane is the integral multiple of drive rack tooth pitch on sill between preparative layer station and stop, in lifting device installation, just Really adjust working in coordination for lifting device and drive rack so that lifting device carriage just stopped from first layer leveling accuracy and Median.

8. a kind of elevator, characterized in that install and use gear teeth described in any claim in claim 1- claim 7 Lifting device maintainable technology on-orbit supports device.