CN209618826U - A kind of lifting device for aircraft wing maintenance platform - Google Patents

Abstract

The utility model discloses a kind of lifting devices for aircraft wing maintenance platform, including mobile chassis, elevating mechanism and inspection platform；Elevating mechanism is mounted on the lower section of inspection platform, for carrying out lifting driving to inspection platform；Mobile chassis is mounted on the lower section of elevating mechanism, for carrying out mobile control to elevating mechanism；Elevating mechanism includes scissors type elevating frame, lifting drive cylinder and two braces；Scissors type elevating frame includes two groups of scissors brackets, upper layer rectangle frame and lower layer's rectangle frame.The lifting device for being used for aircraft wing maintenance platform utilizes the design of mobile chassis and elevating mechanism, inspection platform can be fast moved according to the position for needing to detect on aircraft wing and elevating control, easy access personnel are located in rapidly detection position, improve the detection maintenance efficiency of aircraft wing.

Description

A kind of lifting device for aircraft wing maintenance platform

Technical field

The utility model relates to a kind of lifting device, especially a kind of lifting for aircraft wing maintenance platform is filled It sets.

Background technique

Currently, existing aircraft inspection platform majority is to use fixed maintenance bracket, then pass through manually in maintenance branch The part of aircraft is detected on frame, position is relatively fixed in one test.Since the area of aircraft wing is larger, and type Number different, the mode efficiency of this fixed maintenance bracket is lower, it is difficult to meet existing maintenance needs, it is therefore necessary to design A kind of lifting device for aircraft wing maintenance platform can carry out quick according to the position for needing to detect on aircraft wing Mobile and lifting.

Summary of the invention

Purpose of utility model: providing a kind of lifting device for aircraft wing maintenance platform, can be according to aircraft machine The position for needing to detect on the wing is fast moved and is gone up and down.

Technical solution: the lifting device described in the utility model for aircraft wing maintenance platform, including mobile bottom Disk, elevating mechanism and inspection platform；Elevating mechanism is mounted on the lower section of inspection platform, for carrying out lifting drive to inspection platform It is dynamic；Mobile chassis is mounted on the lower section of elevating mechanism, for carrying out mobile control to elevating mechanism；Elevating mechanism includes scissor-type Crane, lifting drive cylinder and two braces；Scissors type elevating frame include two groups of scissors brackets, upper layer rectangle frame and Lower layer's rectangle frame；By each scissor unit, successively hingedly installation is constituted scissors bracket, and scissor unit is by hinge in the middle part of two scissor arms Connect composition；Upper layer rectangle frame is fixedly mounted on inspection platform；Lower layer's rectangle frame is fixedly mounted on mobile chassis；In upper layer square The relative inner of the front and back side frame of the relative inner and lower layer's rectangle frame of the front and back side frame of shape frame is equipped with guide chute； One group of scissors bracket is mounted vertically between the front side frame of upper layer rectangle frame and the front side frame of lower layer's rectangle frame, and another group is cut Fork bracket is mounted vertically between the rear side frame of upper layer rectangle frame and the rear side frame of lower layer's rectangle frame；In two groups of scissors brackets A yoke articulated shaft is fixedly installed on the scissor arms end of left side top and left bottom, yoke articulated shaft is rotatably pacified On the front side frame and rear side frame of corresponding position；In the scissor arms of two groups of scissors bracket right hand tops and bottom right side It is fixedly installed with a rolling wheel installing shaft on end, guide roller, guide roller are rotatably installed on rolling wheel installing shaft In the guide chute of corresponding position；Lifting drive cylinder is fixedly mounted on mobile chassis, and in lifting drive cylinder Piston rod end drive block is installed；The piston rod telescopic direction for going up and down drive cylinder is parallel with guide chute；Two tiltedly One end of pull rod is fixedly connected on drive block, and the other end is respectively and fixedly installed on two rolling wheel installing shafts of downside；In The opposite vertical supporting bar extended is equipped on two rolling wheel installing shaft ends；The extended end portion of two vertical supporting bars is total It is same to be mounted in center strut；The semicircular indentations for avoiding lifting drive cylinder are equipped on the lower side of center strut.

Further, mobile chassis include lower layer's bottom plate, upper layer bottom plate, four electric rollers, turn to driving motor and Turn to synchronization chain；Four electric rollers are separately mounted to four tops in lower layer's baseplate underside face by four vertical supporting shafts At angle, and the upper end of vertical supporting shaft is rotatably mounted on lower layer's bottom plate；The fixed peace in four vertical supporting shafts Gear is driven equipped with a steering；Synchronization chain is turned to be meshed with four steering driving gears simultaneously；It is logical to turn to driving motor It crosses electric machine support to be fixedly mounted on the downside of lower layer's bottom plate, and is fixedly installed with and turns on the output shaft for turning to driving motor To driving gear；Diversion driving-gear is meshed with synchronization chain is turned to；Upper layer bottom plate is located above lower layer's bottom plate, and on upper layer Level(l)ing mechanism for carrying out Level tune to upper layer bottom plate is installed between bottom plate and lower layer's bottom plate；In lower layer's bottom plate Downside is equipped with control cabinet；It is provided with platform controller in control cabinet, memory, walk driving circuit, turns to driving electricity Road and wireless communication module；Platform controller respectively with memory, walk driving circuit, turn to driving circuit and wireless communication Module electrical connection；It turns to driving circuit and is electrically connected with driving motor is turned to, walk driving circuit is electrically connected with idler wheel driving motor； Platform controller turns to driving motor rotation by turning to driving circuit driving, controls idler wheel driving electricity by walk driving circuit Machine rotation.

Further, level(l)ing mechanism includes horizontally-supported seat, support spheric seating, two balance adjustment mechanisms and inclines Angle transducer；Horizontally-supported seat is fixed at the upper side center of lower layer's bottom plate, and on the upper side of horizontally-supported seat Equipped with spherical depression；Supporting spheric seating is the segment less than hemisphere, and the bottom surface of segment is fixed at the downside of upper layer bottom plate At center；In the downside spherical surface locally embedding spherical depression for supporting spheric seating, and the circular recessed region face where spherical depression Product is greater than a semi-area of lower layer's bottom plate；Balance adjustment mechanism includes balance adjustment chain, balance motor, worm screw, worm gear, adjusting Gear and balance chain strainer；Vertical and horizontal are provided with Uncrossed two chain mistakes on horizontally-supported seat Hole；The balance tune that two balance adjustment chains of two balance adjustment mechanisms extend through two chain via holes, and extend transversely through The both ends of pitch chain item are respectively articulated with the left and right side middle position for being mounted on upper layer bottom plate by two hinged seats, longitudinally run through The both ends of balance adjustment chain the front and back side middle position for being mounted on upper layer bottom plate is respectively articulated with by two hinged seats； The balance motor of two balance adjustment mechanisms is respectively and fixedly installed to the left side edge middle position and front side edge of lower layer's bottom plate Edge middle position；Worm screw abutting joint is meshed on the output shaft of balance motor, and with corresponding worm gear；Worm gear and adjusting Gear is fixedly mounted on synchronous rotating shaft, and synchronous rotating shaft is rotatably mounted on rotary shaft rack；Two balance adjustment mechanisms Adjustment gear is meshed with the balance adjustment chain of corresponding position respectively；The balance chain tensioning device of two balance adjustment mechanisms Structure is separately mounted to the right side edge middle position and posterior edges middle position of lower layer's bottom plate, for flat to two respectively Weighing apparatus adjusts chain and is tensioned；Obliquity sensor is mounted on the downside of upper layer bottom plate, and is electrically connected with platform controller；It is flat Platform controller is used to control the water that two balance adjustment mechanisms carry out upper layer bottom plate respectively according to the acquisition data of obliquity sensor Heibei provincial opera section.

Further, balance chain strainer includes shifting slide gear seat, tensioning tension spring and Tension gear；At lower layer bottom The right side edge middle position and posterior edges middle position of plate are equipped with the cunning being located at below balance adjustment chain Move T-slot；Sliding T-shaped block is equipped in the lower section of shifting slide gear seat；Shifting slide gear seat is slidably mounted at cunning by sliding T-shaped block It moves on T-slot；Tension gear is rotatably mounted on shifting slide gear seat, and Tension gear is meshed with balance adjustment chain； The one end for straining at spring is fixedly mounted on shifting slide gear seat, and the other end is mounted on lower layer's bottom plate by fixed block；It is tensioned tension spring For pulling shifting slide gear seat to slide to the edge of lower layer's bottom plate, make Tension gear that balance adjustment chain be pulled to be tensioned； Tight gear is identical with adjustment gear size, and the mounting height on lower layer's bottom plate is identical；It is additionally provided with and puts down in control cabinet The longitudinal balance driving circuit of platform controller electrical connection and lateral balance drive circuit；Longitudinal balance driving circuit and laterally balance Driving circuit is electrically connected with the balance motor of two balance adjustment mechanisms respectively；Platform controller passes through longitudinal balance driving circuit Two balance motor rotations are controlled respectively with lateral balance drive circuit.

Further, synchronization chain tensioning mechanism is installed on the downside of lower layer's bottom plate；Synchronization chain tensioning mechanism Including tension pulley block, pulley base, pulley tension spring and tensioning mounting blocks；Tension pulley block is rotatably mounted on pulley base, and Pressing is on turning to synchronization chain；Tensioning mounting blocks are fixedly mounted in the middle part of the downside of lower layer's bottom plate；The two of pulley tension spring End is respectively and fixedly installed on tensioning mounting blocks and pulley base, for pulling tension pulley block to carry out pulling to synchronization chain is turned to Tightly.

Further, the oil pump driven circuit being electrically connected with platform controller is additionally provided in control cabinet；Oil pump driving Circuit is electrically connected with the oil pump of lifting drive cylinder；Platform controller controls the oil of lifting drive cylinder by oil pump driven circuit Pump rotation.

Further, a protection mechanism is installed on the front side frame of lower layer's rectangle frame；Protection mechanism includes guiding Raised line, bar blocks, hound, upper bar shaped fagging, tripping driving motor, tripping driving screw rod, lower bar shaped fagging, two slidings are driven It moves seat and two is lifted strut；The section for being oriented to raised line is T shape, and is transversely mounted along front side frame；In the upper of guiding raised line Anti-skidding unidirectional teeth are arranged at intervals on side；Guiding T-slot is equipped on the downside of bar blocks, and in guiding T-slot Trench bottom is equipped with internal unidirectional teeth；Bar blocks are buckled on guiding raised line by being oriented to T-slot, and in the upper side of guiding raised line There are teeth Separations between the trench bottom of guiding T-slot；The outer side edges of bar blocks stretch out the front side edge of lower layer's rectangle frame Outer frame；Lower hinged seat is provided on the upper side of bar blocks；The lower end of hound is hingedly mounted on lower hinged seat, hound Upper end be hingedly mounted in the scissor arms of corresponding position；When the scissor arms that hound is hingedly installed rise, hound is drawn Dynamic bar blocks move to left, and anti-skidding unidirectional teeth are opposite with internal unidirectional teeth to be slided；In the scissor arms decline that hound is hingedly installed When, hound pushes bar blocks to move to right, and buckles anti-skidding unidirectional teeth mutually with internal unidirectional teeth；Lower bar shaped fagging is laterally pacified Slider guide slot is horizontally arranged on the lateral surface of frame, and on the upper side of lower bar shaped fagging；Tripping driving screw rod By threading off, screw bracket is rotatably mounted on the lateral surface of front side frame；The rotating middle part formula of tripping driving screw rod is mounted on On one intermediate fixed block；Oppositely oriented external screw thread is provided on the tripping driving screw rod of intermediate fixed block two sides；Two Sliding drive seat is slidably mounted on slider guide slot, and a driving screw thread is equipped in two sliding drive seats Hole；Two sliding drive seats are screwed by respective driving threaded hole and are mounted on the external screw thread of intermediate fixed block two sides；Tripping Driving motor is fixedly mounted on the outside of front side frame, and the end phase of the output shaft for driving motor of threading off and tripping driving screw rod Docking；A upper hinged seat is equipped at the downside both ends of upper bar shaped fagging；Two upper ends for lifting strut are respectively articulated with peace On two upper hinged seats；Two lower ends for lifting strut, which are respectively articulated with, to be mounted in two sliding drive seats；Upper bar shaped support Plate is parallel with guiding raised line；Upper bar shaped fagging lift rise after with bar blocks stretch out lower layer's rectangle frame front side edge outer frame side Contact, bar blocks, which are lifted, separates internal unidirectional teeth up and down with anti-skidding unidirectional teeth；It is additionally provided with and puts down in control cabinet The tripping driving circuit of platform controller electrical connection；Tripping driving circuit is electrically connected with tripping driving motor；Platform controller passes through Driving circuit control tripping driving motor of threading off rotates.

Further, clump weight is provided on the upper side of bar blocks；In the outside of the front side frame of lower layer's rectangle frame Equipped with vertical T shape sliding slot, slidingtype is equipped in the side of upper bar shaped fagging and is embedded in the vertical T-shaped slider in vertical T shape sliding slot.

Further, inspection platform includes platform top and the protective fence that platform top edge is arranged in；Protection Column is made of guardrail hinged seat, vertical bar and transverse bar；The edge of platform top, and every a side is arranged in guardrail hinged seat Edge is at least provided with three guardrail hinged seats；Postive stop baffle is vertically provided on the upside of guardrail hinged seat；Under vertical bar End is hingedly mounted on guardrail hinged seat；Magnet is equipped on postive stop baffle, when vertical bar is rocked to vertical position with magnet phase Absorption, and vertical bar is stopped to continue to swing to edge outside；It is fixedly mounted on positioned at the upper end of the vertical bar of same side same On transverse bar；Platform top is fixedly mounted on elevating mechanism.

Further, electric roller is made of roller support, back-up roller wheel and idler wheel driving motor；Back-up roller wheel rotation Formula is mounted on roller support, and idler wheel driving motor is for driving back-up roller wheel to rotate；Roller support passes through vertical supporting shaft It is mounted on the downside vertex of lower layer's bottom plate；Walk driving circuit is provided in control cabinet；Platform controller and walking are driven Dynamic circuit electrical connection；Walk driving circuit is electrically connected with idler wheel driving motor；Platform controller is controlled by walk driving circuit The rotation of idler wheel driving motor.

The utility model compared with prior art, the beneficial effect is that: utilize the design of mobile chassis and elevating mechanism, energy Enough inspection platform is fast moved according to the position for needing to detect on aircraft wing and elevating control, easy access personnel are fast Speed is located in detection position, improves the detection maintenance efficiency of aircraft wing.

Detailed description of the invention

Fig. 1 is the front side structure schematic diagram of the utility model；

Fig. 2 is lower layer's baseplate underside face mounting structure schematic diagram of the utility model；

Fig. 3 is the upper layer bottom plate upper side mounting structure schematic diagram of the utility model；

Fig. 4 is the platform top overlooking structure diagram of the utility model；

Fig. 5 is the electrical block diagram of the utility model.

Specific embodiment

Technical solutions of the utility model are described in detail with reference to the accompanying drawing, but the protection scope of the utility model It is not limited to the embodiment.

Embodiment 1:

As shown in Figs. 1-5, the lifting device of aircraft wing maintenance platform provided by the utility model includes: mobile bottom Disk, elevating mechanism and inspection platform；Elevating mechanism is mounted on the lower section of inspection platform, for carrying out lifting drive to inspection platform It is dynamic；Mobile chassis is mounted on the lower section of elevating mechanism, for carrying out mobile control to elevating mechanism；Elevating mechanism includes scissor-type Crane, lifting drive cylinder 26 and two braces 77；Scissors type elevating frame includes two groups of scissors brackets, upper layer rectangle frame 48 and lower layer's rectangle frame 23；By each scissor unit, successively hingedly installation is constituted scissors bracket, and scissor unit is by two scissors 54 middle part of arm is hinged to be constituted；Upper layer rectangle frame 48 is fixedly mounted on inspection platform；Lower layer's rectangle frame 23 is fixedly mounted on movement On chassis；The phase of the front and back side frame of the relative inner of side frame and lower layer's rectangle frame 23 before and after upper layer rectangle frame 48 Guide chute is equipped with to inside；One group of scissors bracket is mounted vertically in the front side frame and lower layer's rectangle frame of upper layer rectangle frame 48 Between 23 front side frame, another group of scissors bracket is mounted vertically in the rear side frame and lower layer's rectangle frame 23 of upper layer rectangle frame 48 Rear side frame between；One is fixedly installed on 54 end of scissor arms of two groups of scissors bracket left side tops and left bottom Root yoke articulated shaft 79, yoke articulated shaft 79 is rotatably mounted on the front side frame and rear side frame of corresponding position；Two It is fixedly installed with a rolling wheel installing shaft 78 on 54 end of scissor arms of group scissors bracket right hand top and bottom right side, is being rolled Guide roller is rotatably installed, guide roller is in the guide chute of corresponding position in wheel installation axle 78；Lifting driving Oil cylinder 26 is fixedly mounted on mobile chassis, and is equipped with drive block 75 in the piston rod end of lifting drive cylinder 26；Lifting The piston rod telescopic direction of drive cylinder 26 is parallel with guide chute；One end of two braces 77, which is fixedly connected with, is driving On motion block 75, the other end is respectively and fixedly installed on two rolling wheel installing shafts 78 of downside；Two 78 ends of rolling wheel installing shaft On be equipped with the opposite vertical supporting bar 76 extended；The extended end portion of two vertical supporting bars 76 is commonly mounted on center support On plate 25；The semicircular indentations for avoiding lifting drive cylinder 26 are equipped on the lower side of center strut 25.Utilize movement The design on chassis and elevating mechanism, inspection platform can fast move according to the position for needing to detect on aircraft wing and Elevating control, easy access personnel are located in rapidly detection position, improve the detection maintenance efficiency of aircraft wing；It is vertical using two Lateral longitudinal support structure is constituted to support rod 76 and center strut 25, can be prevented under the pulling function of two braces 77 Guide roller is detached from guide chute.

Further, mobile chassis includes lower layer's bottom plate 1,11, four electric rollers of upper layer bottom plate, turns to driving motor 12 And turn to synchronization chain 9；Four electric rollers are separately mounted to 1 downside of lower layer's bottom plate by four vertical supporting shafts 3 Four vertex, and the upper end of vertical supporting shaft 3 is rotatably mounted on lower layer's bottom plate 1；In four vertical supporting shafts 3 On be fixedly installed with steering driving gear 8；Synchronization chain 9 is turned to be meshed with four steering driving gears 8 simultaneously；Turn It is fixedly mounted on the downside of lower layer's bottom plate 1 to driving motor 12 by electric machine support 13, and is turning to driving motor 12 Diversion driving-gear 14 is fixedly installed on output shaft；Diversion driving-gear 14 is meshed with synchronization chain 9 is turned to；Upper layer bottom plate 11 are located at 1 top of lower layer's bottom plate, and are equipped between upper layer bottom plate 11 and lower layer's bottom plate 1 for carrying out water to upper layer bottom plate 11 The level(l)ing mechanism of Heibei provincial opera section；Control cabinet 7 is installed in the downside of lower layer's bottom plate 1；Platform control is provided in control cabinet 7 Device, memory, walk driving circuit, steering driving circuit and wireless communication module processed；Platform controller respectively with memory, row It walks driving circuit, turn to driving circuit and wireless communication module electrical connection；It turns to driving circuit and turns to 12 electricity of driving motor Connection, walk driving circuit are electrically connected with idler wheel driving motor 6；Platform controller turns to drive by turning to driving circuit driving Dynamic motor 12 rotates, and controls idler wheel driving motor 6 by walk driving circuit and rotates.Using steering synchronization chain 9 simultaneously to four A steering driving gear 8 is synchronous to be driven, to realize that the omnidirectional of mobile chassis steadily moves, enables workbench quickly smart Really it is moved to designated position.

Further, level(l)ing mechanism include horizontally-supported seat 2, support 10, two balance adjustment mechanisms of spheric seating with And obliquity sensor 24；Horizontally-supported seat 2 is fixed at the upper side center of lower layer's bottom plate 1, and in horizontally-supported seat 2 Upper side is equipped with spherical depression；Supporting spheric seating 10 is the segment less than hemisphere, and the bottom surface of segment is fixed at upper layer bottom At the downside center of plate 11；In the downside spherical surface locally embedding spherical depression for supporting spheric seating 10, and where spherical depression Circular recessed region area is greater than a semi-area of lower layer's bottom plate 1；Balance adjustment mechanism includes balance adjustment chain 16, balance electricity Machine 22, worm screw 21, worm gear 20, adjustment gear 19 and balance chain strainer；In longitudinal and horizontal on horizontally-supported seat 2 To being provided with Uncrossed two chain via holes 15；Two balance adjustment chains 16 of two balance adjustment mechanisms extend through two A chain via hole 15, and the both ends of the balance adjustment chain 16 extended transversely through are respectively articulated with by two hinged seats 17 and are mounted on The both ends of the left and right side middle position of layer bottom plate 11, longitudinal perforative balance adjustment chain 16 are divided by two hinged seats 17 It is not hingedly mounted on the front and back side middle position of upper layer bottom plate 11；The balance motor 22 of two balance adjustment mechanisms is solid respectively Dingan County is mounted in the left side edge middle position and forward edge middle position of lower layer's bottom plate 1；21 abutting joint of worm screw is flat It weighs on the output shaft of motor 22, and is meshed with corresponding worm gear 20；Worm gear 20 is fixedly mounted on synchronous with adjustment gear 19 In shaft, synchronous rotating shaft is rotatably mounted on rotary shaft rack 18；The adjustment gear 19 of two balance adjustment mechanisms respectively with it is right The balance adjustment chain 16 at position is answered to be meshed；The balance chain strainer of two balance adjustment mechanisms is separately mounted to down The right side edge middle position and posterior edges middle position of layer bottom plate 1, for respectively to two balance adjustment chains 16 It is tensioned；Obliquity sensor 24 is mounted on the downside of upper layer bottom plate 11, and is electrically connected with platform controller；Platform courses Device is used to control the level that two balance adjustment mechanisms carry out upper layer bottom plate 11 respectively according to the acquisition data of obliquity sensor 24 It adjusts.The levelness of upper layer bottom plate 11 can be adjusted using level(l)ing mechanism, so that it is guaranteed that elevating mechanism and maintenance The stability of platform avoids shaking in use and topple over, while can also enhance service personnel in inspection platform work Safety；Using the cooperation of worm screw 21 and worm gear 20, there can be preferable latch functions, prevent from being driven in the reverse direction balance motor 22, it is ensured that the stability after Level tune；Using the cooperation of horizontally-supported seat 2 and support spheric seating 10, there is preferable support Effect, and Level tune that can conveniently axially and longitudinally；Set big for the circular recessed region area where spherical depression In a semi-area of lower layer's bottom plate 1, it can be ensured that there is biggish bearing area, to carry biggish weight, and can be There is preferable stability when Level tune.

Further, balance chain strainer includes shifting slide gear seat 27, tensioning tension spring 28 and Tension gear 29；In The right side edge middle position and posterior edges middle position of lower layer's bottom plate 1 are equipped with one and are located at balance adjustment chain 16 The sliding T-slot of lower section；Sliding T-shaped block is equipped in the lower section of shifting slide gear seat 27；Shifting slide gear seat 27 passes through sliding T-shaped block It is slidably mounted on sliding T-slot；Tension gear 29 is rotatably mounted on shifting slide gear seat 27, and Tension gear 29 and flat Weighing apparatus adjusts chain 16 and is meshed；One end of tensioning tension spring 28 is fixedly mounted on shifting slide gear seat 27, and the other end passes through fixed block It is mounted on lower layer's bottom plate 1；Tensioning tension spring 28 makes to be tensioned for pulling shifting slide gear seat 27 to slide to the edge of lower layer's bottom plate 1 Gear 29 pulls balance adjustment chain 16 to be tensioned；Tension gear 29 is identical with 19 size of adjustment gear, and in lower layer's bottom plate Mounting height on 1 is identical；The longitudinal balance driving circuit and cross being electrically connected with platform controller are additionally provided in control cabinet 7 To balance drive circuit；Longitudinal balance driving circuit and lateral balance drive the circuit balance with two balance adjustment mechanisms respectively Motor 22 is electrically connected；Platform controller controls two balances by longitudinal balance driving circuit and lateral balance drive circuit respectively Motor 22 rotates.It can prevent balance adjustment chain 16 from jumping with engaging for adjustment gear 19 using balance chain strainer Tooth skids；Using the cooperation of sliding T-shaped block and sliding T-slot on shifting slide gear seat 27, so that shifting slide gear seat 27 can only be put down It moves, it is ensured that balance adjustment chain 16 and 1 keeping parallelism of lower layer's bottom plate, thus will not be with the 15 phase friction of chain via hole.

Further, synchronization chain tensioning mechanism is installed on the downside of lower layer's bottom plate 1；Synchronization chain tensioning mechanism Including tension pulley block 74, pulley base 73, pulley tension spring 72 and tensioning mounting blocks 71；Tension pulley block 74 is rotatably mounted on cunning On wheel seat 73, and press on turning to synchronization chain 9；Tensioning mounting blocks 71 are fixedly mounted in the downside of lower layer's bottom plate 1 Portion；The both ends of pulley tension spring 72 are respectively and fixedly installed on tensioning mounting blocks 71 and pulley base 73, for pulling tension pulley block 74 pairs of steering synchronization chains 9 carry out pulling tensioning.It enables to turn to synchronization chain 9 always using synchronization chain tensioning mechanism In tensioning state, prevent steering synchronization chain 9 from beating with the appearance jump tooth that engages for turning to driving gear 8, diversion driving-gear 14 It is sliding.

Further, the oil pump driven circuit being electrically connected with platform controller is additionally provided in control cabinet 7；Oil pump driving Circuit is electrically connected with the oil pump of lifting drive cylinder 26；Platform controller controls lifting drive cylinder 26 by oil pump driven circuit Oil pump rotation.

Further, a protection mechanism is installed on the front side frame of lower layer's rectangle frame 23；Protection mechanism includes leading To raised line 33, bar blocks 35, hound 42, upper bar shaped fagging 37, tripping driving motor 47, tripping driving screw rod 46, lower bar shaped Fagging, two sliding drive seats 41 and two lift strut 45；The section for being oriented to raised line 33 is T shape, and along front side frame cross To installation；Anti-skidding unidirectional teeth 34 are arranged at intervals on the upper side of guiding raised line 33；It is set on the downside of bar blocks 35 There is guiding T-slot, and is equipped with internal unidirectional teeth in the trench bottom of guiding T-slot；Bar blocks 35 are buckled in by guiding T-slot and are led There are teeth Separations on raised line 33, and between the upper side of guiding raised line 33 and the trench bottom for being oriented to T-slot；Bar shaped The outer side edges of block 35 stretch out the front side edge outer frame of lower layer's rectangle frame 23；Lower hinged seat is provided on the upper side of bar blocks 35 40；The lower end of hound 42 is hingedly mounted on lower hinged seat 40, and the upper end of hound 42 is hingedly mounted on corresponding position In scissor arms 54；When the scissor arms 54 that hound 42 is hingedly installed rise, hound 42 pulls bar blocks 35 to move to left, anti-skidding list It is slided to teeth 34 are opposite with internal unidirectional teeth；When the scissor arms 54 that hound 42 is hingedly installed decline, hound 42 is pushed away Dynamic bar blocks 35 move to right, and buckle anti-skidding unidirectional teeth 34 mutually with internal unidirectional teeth；Lower bar shaped fagging is transversely mounted on side On the lateral surface of frame, and slider guide slot is horizontally arranged on the upper side of lower bar shaped fagging；Tripping driving screw rod 46 passes through Tripping screw bracket is rotatably mounted on the lateral surface of front side frame；The rotating middle part formula of tripping driving screw rod 46 is mounted on one On a intermediate fixed block 38；Oppositely oriented external screw thread is provided on the tripping driving screw rod 46 of intermediate 38 two sides of fixed block 44；Two sliding drive seats 41 are slidably mounted on slider guide slot, and are equipped with one in two sliding drive seats 41 A driving threaded hole；Two sliding drive seats 41 are screwed by respective driving threaded hole and are mounted on intermediate 38 two sides of fixed block On external screw thread 44；Tripping driving motor 47 be fixedly mounted on front side frame outside, and thread off driving motor 47 output shaft with The end of tripping driving screw rod 46 is connected to each other；A upper hinged seat 43 is equipped at the downside both ends of upper bar shaped fagging 37；Two The upper end that root lifts strut 45, which is respectively articulated with, to be mounted on two upper hinged seats 43；Two lower ends for lifting strut 45 are respectively articulated with It is mounted in two sliding drive seats 41；Upper bar shaped fagging 37 is parallel with guiding raised line 33；Upper bar shaped fagging 37 lifts rising The contact aside for stretching out 23 front side edge outer frame of lower layer's rectangle frame with bar blocks 35 afterwards, bar blocks 35, which are lifted, makes internal unidirectional teeth It is separated with anti-skidding unidirectional about 34 teeth；The tripping driving circuit being electrically connected with platform controller is additionally provided in control cabinet 7； Tripping driving circuit is electrically connected with tripping driving motor 47；Platform controller passes through tripping driving circuit control tripping driving motor 47 rotations.Effective protection can be carried out when service personnel is located at and works in platform top 49 using protection mechanism, prevent from going up and down Mechanism, which breaks down, quickly to drop, it is ensured that personnel safety；Utilize the cooperation of slider guide slot and sliding drive seat 41, it can be ensured that 41 smooth sliding of drive seat is slid, is not in the problem of rotation or skew.

Further, clump weight 39 is provided on the upper side of bar blocks 35；In the front side frame of lower layer's rectangle frame 23 Outside be equipped with vertical T shape sliding slot 36, the side of upper bar shaped fagging 37 be equipped with slidingtype be embedded in it is perpendicular in vertical T shape sliding slot 36 To T-shaped slider.It is capable of increasing the gravity of bar blocks 35 using clump weight 39, hurtles down, makes after the release of upper bar shaped fagging 37 Internal unidirectional teeth are buckled with anti-skidding unidirectional 34 phase of teeth；It, can using the cooperation of vertical T shape sliding slot 36 and vertical T-shaped slider Ensure the stationarity that bar shaped fagging 37 moves up and down

Further, inspection platform includes platform top 49 and the protective fence that 49 edge of platform top is arranged in； Protective fence is made of guardrail hinged seat 50, vertical bar 52 and transverse bar 53；Platform top 49 is arranged in guardrail hinged seat 50 Edge, and every one side edge is at least provided with three guardrail hinged seats 50；It is vertically provided in the upside of guardrail hinged seat 50 Postive stop baffle；The lower end of vertical bar 52 is hingedly mounted on guardrail hinged seat 50；Magnet 51 is equipped on postive stop baffle, vertically It is adsorbed when bar 52 is rocked to vertical position with 51 phase of magnet, and vertical bar 52 is stopped to continue to swing to edge outside；Positioned at same The upper end of the vertical bar 52 of side is fixedly mounted on same transverse bar 53；Platform top 49 is fixedly mounted on elevating mechanism. The safety of service personnel can be protected using protective fence；It can be turned convenient for protective fence by folded state using magnet 51 Fixation when for vertical state, enhances the convenience that protective fence uses.

Further, electric roller is made of roller support 4, back-up roller wheel 5 and idler wheel driving motor 6；Back-up roller wheel 5 It is rotatably mounted on roller support 4, idler wheel driving motor 6 is for driving back-up roller wheel 5 to rotate；Roller support 4 passes through vertical Support shaft 3 is mounted on the downside vertex of lower layer's bottom plate 1；Walk driving circuit is provided in control cabinet 7；Platform control Device processed is electrically connected with walk driving circuit；Walk driving circuit is electrically connected with idler wheel driving motor 6；Platform controller passes through walking Driving circuit controls idler wheel driving motor 6 and rotates.

In lifting device provided by the utility model for aircraft wing maintenance platform, idler wheel driving motor 6 is turned to Driving motor 12, balance motor 22, lifting drive cylinder 26 and tripping driving motor 47 are all made of existing with band-type brake function The stepper motor of energy can realize rotation control under the control of respective motor-drive circuit；Walk driving circuit turns to driving Circuit, longitudinal balance driving circuit, lateral balance drive circuit, lifting driving circuit and tripping driving circuit are all made of existing Stepper motor driving circuit, can be realized the rotation control of the motor of corresponding electrical connection；Wireless communication module is using existing Wireless module, such as WiFi wireless module or ZigBee wireless module, can carry out wireless communication, just with controlling terminal Remote mobile and elevating control are carried out in service personnel；Platform controller uses arm single-chip microcontroller or FPGA, can be to control command Carry out transmitting-receiving control；Obliquity sensor 24 uses existing two axial rakes sensor, can be to the inclination of upper layer bottom plate 11 Angle is detected.When carrying out field control to lifting device, controlling terminal can use catv terminal or wireless terminal； It is provided on catv terminal and is controlled with platform controller by the left-hand rotation control button of cable connection, right-hand rotation control button, walking Key processed, control button of threading off release the control key, rise control button and decline control button；It sets on a wireless terminal Be equipped with terminal handler and the terminal memory being electrically connected with terminal handler, terminal wireless communication module, turn left control by Key, travelling control key, control button of threading off, releases the control key, rises control button and decline control right-hand rotation control button Key processed.The wireless communication connection of the wireless communication module of terminal wireless communication module and lifting device, is used for transmission by key control Signal；Left-hand rotation control button and right-hand rotation control button turn to the positive and negative rotation of driving motor 12 for control respectively；Travelling control is pressed Key is used to control the start and stop of idler wheel driving motor 6；Tripping control button is used for control tripping driving respectively with key is released the control 47 positive and negative rotation of motor, and bar blocks 35 are held in the upper rising of bar shaped fagging 37 of while rotating forward, the upper decline of bar shaped fagging 37 release of when reversion 35 gravity of bar blocks falls；Rise control button and declines the oil pump electricity that control button is used to control lifting drive cylinder 26 Machine positive and negative rotation.

Lifting device provided by the utility model for aircraft wing maintenance platform includes the following steps: at work

Platform displacement step: four rolling driving motor 6 is controlled by platform controller, to realize mobile chassis Movement, driven in moving process by turning to 12 pairs of steerings synchronization chains 9 of driving motor, so that four electric rollers have There is identical steering, reach preferable omnidirectional's panning effect, to fast move to designated position；

Level regulating step: analysis is carried out according to the inclination data that obliquity sensor 24 uses by platform controller and obtains cross Make to component and vertical adjustment component is adjusted to carry out rotation control to two horizontal and vertical balance motors 22 respectively Upper layer bottom plate 11 is obtained to be in a horizontal state；

Elevating control step: the deformation of scissors type elevating frame is driven by lifting drive cylinder 26, lifts the lifting of platform top 49 Movement；Before lifting drive cylinder 26 works so that platform top 49 is initially located in ascending motion state and descending motion state, It needs to control tripping driving motor 47 and rotates forward work, bar shaped fagging 37 lifts bar blocks 35 in driving, so that internal unidirectional teeth It is separated with anti-skidding unidirectional about 34 teeth, in the lifting of hoistable platform top plate 49 to specified altitude assignment, needs to control tripping driving electricity Machine 47 inverts work, the decline of bar shaped fagging 37 release bar blocks 35 in driving, so that internal unidirectional teeth and anti-skidding unidirectional teeth 34 are meshed, and realize buckle protection；

Artificial maintenance step: service personnel follows 49 1 lifting of platform top to designated position, and protective fence is opened in perpendicular To state, surrounding is convenient for protecting；Service personnel can be detected a flaw by internal structure of the supersonic detector to wing Detection.

As described above, although the utility model has been indicated and described referring to specific preferred embodiment, it must not It is construed to the limitation to the utility model itself.In the spirit and scope for not departing from the utility model that appended claims define Under the premise of, it can various changes can be made in the form and details to it.

Claims (10)

1. a kind of lifting device for aircraft wing maintenance platform, it is characterised in that: including mobile chassis, elevating mechanism with And inspection platform；Elevating mechanism is mounted on the lower section of inspection platform, for carrying out lifting driving to inspection platform；Mobile chassis peace Mounted in the lower section of elevating mechanism, for carrying out mobile control to elevating mechanism；Elevating mechanism includes scissors type elevating frame, lifting drive Dynamic oil cylinder (26) and two braces (77)；Scissors type elevating frame include two groups of scissors brackets, upper layer rectangle frame (48) and Lower layer's rectangle frame (23)；By each scissor unit, successively hingedly installation is constituted scissors bracket, and scissor unit is by two scissor arms (54) middle part is hinged is constituted；Upper layer rectangle frame (48) is fixedly mounted on inspection platform；Lower layer's rectangle frame (23) is fixedly mounted on On mobile chassis；The front and back side of the relative inner of side frame and lower layer's rectangle frame (23) before and after upper layer rectangle frame (48) The relative inner of frame is equipped with guide chute；One group of scissors bracket is mounted vertically in the front side frame of upper layer rectangle frame (48) under Between the front side frame of layer rectangle frame (23), another group of scissors bracket be mounted vertically in the rear side frame of upper layer rectangle frame (48) with Between the rear side frame of lower layer's rectangle frame (23)；In scissor arms (54) end of two groups of scissors bracket left side tops and left bottom On be fixedly installed with a yoke articulated shaft (79), yoke articulated shaft (79) is rotatably mounted on the front side edge of corresponding position On frame and rear side frame；It is fixedly installed on scissor arms (54) end of two groups of scissors bracket right hand tops and bottom right side A piece rolling wheel installing shaft (78), is rotatably equipped with guide roller on rolling wheel installing shaft (78), and guide roller is embedded in corresponding position It sets in the guide chute at place；Lifting drive cylinder (26) is fixedly mounted on mobile chassis, and in lifting drive cylinder (26) Piston rod end is equipped with drive block (75)；The piston rod telescopic direction for going up and down drive cylinder (26) is parallel with guide chute； One end of two braces (77) is fixedly connected on drive block (75), and the other end is respectively and fixedly installed to two rollings of downside It takes turns on installation axle (78)；The opposite vertical supporting bar (76) extended is equipped on two rolling wheel installing shaft (78) ends； The extended end portion of two vertical supporting bars (76) is commonly mounted on center strut (25)；On the lower side of center strut (25) Equipped with the semicircular indentations for avoiding lifting drive cylinder (26).

2. the lifting device according to claim 1 for aircraft wing maintenance platform, it is characterised in that: mobile chassis Including lower layer's bottom plate (1), upper layer bottom plate (11), four electric rollers, turn to driving motor (12) and steering synchronization chain (9)；Four electric rollers are separately mounted to four apex angles of lower layer's bottom plate (1) downside by four vertical supporting shafts (3) Place, and the upper end of vertical supporting shaft (3) is rotatably mounted on lower layer's bottom plate (1)；On four vertical supporting shafts (3) It is fixedly installed with steering driving gear (8)；Synchronization chain (9) are turned to be meshed with four steering drivings gear (8) simultaneously； It turns to driving motor (12) to be fixedly mounted on the downside of lower layer's bottom plate (1) by electric machine support (13), and is driven turning to Diversion driving-gear (14) are fixedly installed on the output shaft of motor (12)；Diversion driving-gear (14) and steering synchronization chain (9) it is meshed；Upper layer bottom plate (11) is located above lower layer's bottom plate (1), and pacifies between upper layer bottom plate (11) and lower layer's bottom plate (1) Equipped with the level(l)ing mechanism for upper layer bottom plate (11) to be carried out with Level tune；It is equipped in the downside of lower layer's bottom plate (1) Control cabinet (7)；It is provided with platform controller in control cabinet (7), memory, walk driving circuit, turns to driving circuit and nothing Line communication module；Platform controller is electric with memory, walk driving circuit, steering driving circuit and wireless communication module respectively Connection；It turns to driving circuit and is electrically connected with driving motor (12) are turned to, walk driving circuit is electrically connected with idler wheel driving motor (6) It connects；Platform controller turns to driving motor (12) rotation by turning to driving circuit driving, is controlled and is rolled by walk driving circuit Wheel drive motor (6) rotation.

3. the lifting device according to claim 2 for aircraft wing maintenance platform, it is characterised in that: Level tune Mechanism includes horizontally-supported seat (2), support spheric seating (10), two balance adjustment mechanisms and obliquity sensor (24)；It is horizontal Support base (2) is fixed at the upper side center of lower layer's bottom plate (1), and is equipped on the upper side of horizontally-supported seat (2) Spherical depression；Supporting spheric seating (10) is the segment less than hemisphere, and the bottom surface of segment is fixed under upper layer bottom plate (11) At center side；Circle in the downside spherical surface locally embedding spherical depression for supporting spheric seating (10), and where spherical depression is recessed Fall into the semi-area that region area is greater than lower layer's bottom plate (1)；Balance adjustment mechanism includes balance adjustment chain (16), balance motor (22), worm screw (21), worm gear (20), adjustment gear (19) and balance chain strainer；In vertical on horizontally-supported seat (2) To be horizontally arranged with Uncrossed two chain via holes (15)；Two balance adjustment chains (16) of two balance adjustment mechanisms The both ends for the balance adjustment chain (16) for extending through two chain via holes (15), and extending transversely through pass through two hinged seats (17) It is respectively articulated with the left and right side middle position for being mounted on upper layer bottom plate (11), the two of longitudinal perforative balance adjustment chain (16) End is respectively articulated with the front and back side middle position for being mounted on upper layer bottom plate (11) by two hinged seats (17)；Two balances are adjusted The balance motor (22) of section mechanism is respectively and fixedly installed in the left side edge middle position and forward edge of lower layer's bottom plate (1) Between at position；Worm screw (21) abutting joint is meshed on the output shaft of balance motor (22), and with corresponding worm gear (20)；Snail Wheel (20) and adjustment gear (19) are fixedly mounted on synchronous rotating shaft, and synchronous rotating shaft is rotatably mounted on rotary shaft rack (18) On；The adjustment gear (19) of two balance adjustment mechanisms is meshed with the balance adjustment chain (16) of corresponding position respectively；Two The balance chain strainer of a balance adjustment mechanism is separately mounted to the right side edge middle position of lower layer's bottom plate (1) with after Side edge middle position, for being tensioned respectively to two balance adjustment chains (16)；Obliquity sensor (24) is mounted on On the downside of upper layer bottom plate (11), and it is electrically connected with platform controller；Platform controller is used for according to obliquity sensor (24) Acquisition data control the Level tune that two balance adjustment mechanisms carry out upper layer bottom plate (11) respectively.

4. the lifting device according to claim 3 for aircraft wing maintenance platform, it is characterised in that: balance chain Strainer includes shifting slide gear seat (27), tensioning tension spring (28) and Tension gear (29)；Right edge in lower layer's bottom plate (1) Edge middle position and posterior edges middle position are equipped with the sliding T shape being located at below balance adjustment chain (16) Slot；Sliding T-shaped block is equipped in the lower section of shifting slide gear seat (27)；Shifting slide gear seat (27) passes through sliding T-shaped block slidingtype installation On sliding T-slot；Tension gear (29) is rotatably mounted on shifting slide gear seat (27), and Tension gear (29) and balance are adjusted Pitch chain item (16) is meshed；One end of tensioning tension spring (28) is fixedly mounted on shifting slide gear seat (27), and the other end passes through fixation Block is mounted on lower layer's bottom plate (1)；Tensioning tension spring (28) is for pulling shifting slide gear seat (27) sliding to the edge of lower layer's bottom plate (1) It moves, makes Tension gear (29) that balance adjustment chain (16) to be pulled to be tensioned；Tension gear (29) and adjustment gear (19) size It is identical, and the mounting height on lower layer's bottom plate (1) is identical；It is additionally provided in control cabinet (7) and is electrically connected with platform controller Longitudinal balance driving circuit and lateral balance drive circuit；Longitudinal balance driving circuit and lateral balance drive circuit respectively with The balance motor (22) of two balance adjustment mechanisms is electrically connected；Platform controller is balanced by longitudinal balance driving circuit and laterally Driving circuit controls two balance motor (22) rotations respectively.

5. the lifting device according to claim 2 for aircraft wing maintenance platform, it is characterised in that: at lower layer bottom Synchronization chain tensioning mechanism is installed on the downside of plate (1)；Synchronization chain tensioning mechanism includes tension pulley block (74), pulley base (73), pulley tension spring (72) and tensioning mounting blocks (71)；Tension pulley block (74) is rotatably mounted on pulley base (73), and Pressing is on turning to synchronization chain (9)；Tensioning mounting blocks (71) is fixedly mounted in the middle part of the downside of lower layer's bottom plate (1)；Pulley The both ends of tension spring (72) are respectively and fixedly installed on tensioning mounting blocks (71) and pulley base (73), for pulling tension pulley block (74) pulling tensioning is carried out to steering synchronization chain (9).

6. the lifting device according to claim 2 for aircraft wing maintenance platform, it is characterised in that: in control cabinet (7) oil pump driven circuit being electrically connected with platform controller is additionally provided in；Oil pump driven circuit and lifting drive cylinder (26) Oil pump electrical connection；Platform controller is rotated by the oil pump that oil pump driven circuit controls lifting drive cylinder (26).

7. the lifting device according to claim 6 for aircraft wing maintenance platform, it is characterised in that: in lower layer's square One protection mechanism is installed on the front side frame of shape frame (23)；Protection mechanism include guiding raised line (33), bar blocks (35), tiltedly Strut (42), upper bar shaped fagging (37), tripping driving motor (47), tripping driving screw rod (46), lower bar shaped fagging, two slidings Drive seat (41) and two lift strut (45)；The section for being oriented to raised line (33) is T shape, and is transversely mounted along front side frame； Anti-skidding unidirectional teeth (34) are arranged at intervals on the upper side of guiding raised line (33)；It is equipped on the downside of bar blocks (35) It is oriented to T-slot, and is equipped with internal unidirectional teeth in the trench bottom of guiding T-slot；Bar blocks (35) are buckled in by guiding T-slot and are led There are teeth Separations on raised line (33), and between the upper side of guiding raised line (33) and the trench bottom of guiding T-slot； The outer side edges of bar blocks (35) stretch out the front side edge outer frame of lower layer's rectangle frame (23)；It is provided on the upper side of bar blocks (35) Lower hinged seat (40)；The lower end of hound (42) is hingedly mounted on lower hinged seat (40), and the upper end of hound (42) is hingedly pacified In the scissor arms (54) of corresponding position；When the scissor arms (54) that hound (42) is hingedly installed rise, hound (42) bar blocks (35) are pulled to move to left, anti-skidding unidirectional teeth (34) are opposite with internal unidirectional teeth to be slided；It is cut with scissors in hound (42) Connect installation scissor arms (54) decline when, hound (42) push bar blocks (35) move to right, make anti-skidding unidirectional teeth (34) with it is interior The unidirectional teeth in portion mutually buckle；Lower bar shaped fagging is transversely mounted on the lateral surface of frame, and in the upper side of lower bar shaped fagging On be horizontally arranged with slider guide slot；Tripping driving screw rod (46) is rotatably mounted on front side frame by screw bracket of threading off On lateral surface；The rotating middle part formula of tripping driving screw rod (46) is mounted on an intermediate fixed block (38)；In intermediate fixed block (38) oppositely oriented external screw thread (44) are provided in tripping driving screw rod (46) of two sides；Two sliding drive seats (41) are sliding Dynamic formula is mounted on slider guide slot, and a driving threaded hole is equipped on two sliding drive seats (41)；Two slidings Drive seat (41) is screwed by respective driving threaded hole and is mounted on the external screw thread (44) of intermediate fixed block (38) two sides；Tripping Driving motor (47) is fixedly mounted on the outside of front side frame, and the output shaft of tripping driving motor (47) and tripping driving screw rod (46) end is connected to each other；One upper hinged seat (43) are equipped at the downside both ends of upper bar shaped fagging (37)；Two are lifted The upper end of strut (45), which is respectively articulated with, to be mounted on two upper hinged seat (43)；Two lower ends for lifting strut (45) are respectively articulated with It is mounted on two sliding drive seats (41)；Upper bar shaped fagging (37) is parallel with guiding raised line (33)；Upper bar shaped fagging (37) The contact aside for stretching out lower layer's rectangle frame (23) front side edge outer frame after rising with bar blocks (35) is lifted, bar blocks (35) are lifted Separate internal unidirectional teeth up and down with anti-skidding unidirectional teeth (34)；It is additionally provided in control cabinet (7) and platform controller electricity The tripping driving circuit of connection；Tripping driving circuit is electrically connected with tripping driving motor (47)；Platform controller is driven by tripping Dynamic circuit control tripping driving motor (47) rotation.

8. the lifting device according to claim 7 for aircraft wing maintenance platform, it is characterised in that: in bar blocks (35) clump weight (39) are provided on upper side；It is sliding equipped with vertical T shape in the outside of the front side frame of lower layer's rectangle frame (23) Slot (36) is equipped with the vertical T-shaped slider that slidingtype is embedded in vertical T shape sliding slot (36) in the side of upper bar shaped fagging (37).

9. the lifting device according to claim 2 for aircraft wing maintenance platform, it is characterised in that: inspection platform Including platform top (49) and setting platform top (49) edge protective fence；Protective fence is by guardrail hinged seat (50), vertical bar (52) and transverse bar (53) are constituted；Guardrail hinged seat (50) is arranged at the edge of platform top (49), and every One side edge is at least provided with three guardrail hinged seats (50)；Limiting block is vertically provided on the upside of guardrail hinged seat (50) Plate；The lower end of vertical bar (52) is hingedly mounted on guardrail hinged seat (50)；Magnet (51) are equipped on postive stop baffle, vertical bar (52) it is mutually adsorbed when being rocked to vertical position with magnet (51), and vertical bar (52) is stopped to continue to swing to edge outside；It is located at The upper end of the vertical bar (52) of same side is fixedly mounted on same transverse bar (53)；Platform top (49) is fixedly mounted on liter On descending mechanism.

10. the lifting device according to claim 2 for aircraft wing maintenance platform, it is characterised in that: electronic rolling Wheel is made of roller support (4), back-up roller wheel (5) and idler wheel driving motor (6)；Back-up roller wheel (5) is rotatably mounted on rolling On wheeling support (4), idler wheel driving motor (6) is for driving back-up roller wheel (5) to rotate；Roller support (4) is turned by vertical supporting Axis (3) is mounted on the downside vertex of lower layer's bottom plate (1)；Walk driving circuit is provided in control cabinet (7)；Platform courses Device is electrically connected with walk driving circuit；Walk driving circuit is electrically connected with idler wheel driving motor (6)；Platform controller passes through walking Driving circuit controls idler wheel driving motor (6) rotation.