CN208632043U - Aircraft engine machine overhauling ladder - Google Patents

Abstract

The utility model discloses a kind of aircraft engine machine overhauling ladders, including ladder (1), telescopic device (2), anti-fall device (3), elevation mount (4) and support device (5)；After described elevation mount (4) one end and ladder (1) are hinged, hingedly, the ladder (1) is made of multiple ladders for the other end and the support device (5)；The telescopic device (2) and anti-fall device (3) are mounted on ladder (1)；Ladder (1) angle and height are adjusted by telescopic device (2) and elevation mount (4), anti-fall device (3) carries out locking to the relative movement of each ladder, prevents ladder from dropping automatically.The utility model aircraft engine machine overhauling with ladder have the characteristics that it is small and exquisite, light, can neatly multiple angles and a variety of height work in all directions in narrow space, it is versatile and reduce labor intensity.

Description

Aircraft engine machine overhauling ladder

Technical field

The utility model relates to aircraft repair apparatus fields, more particularly to a kind of aircraft engine machine overhauling ladder.

Background technique

With the development of state aviation equipment manufacture, various military and civilian type is increasing, aircraft maintenance company The number of aircraft of maintenance is consequently increased.And it is various to overhaul the even more frequency as most crucial component for aircraft engine.It is various Aircraft engine shape is cylinder not of uniform size, and aircraft engine need to open bonnet when repairing, and maintenance personal need to be Work in all directions in narrow space, be badly in need of it is a it is small and exquisite, light, labor intensity is low, applicable multiple angles and a variety of high The versatile device of degree.

Utility model content

The purpose of this utility model is to overcome repair apparatus of the existing technology big, stability, comfort and spirit The inadequate problem of activity, provides a kind of aircraft engine machine overhauling ladder, and aircraft engine machine overhauling ladder has small and exquisite, light Just, can neatly multiple angles and a variety of height work in all directions in narrow space, it is versatile and reduce labour The characteristics of intensity.

To achieve the goals above, on the one hand the utility model provides a kind of aircraft engine machine overhauling ladder, including ladder Frame, telescopic device, anti-fall device, elevation mount and support device；

After described elevation mount one end and ladder are hinged, the other end and the support device are hinged, and the ladder is by multiple Ladder composition；

The telescopic device and anti-fall device are mounted on ladder；

Ladder angle and height, relative movement of the anti-fall device to each ladder are adjusted by telescopic device and elevation mount Locking is carried out, prevents ladder from dropping automatically.

Further, the ladder includes the first ladder, the second ladder, third ladder and fourth order ladder；

First ladder, the second ladder, third ladder and fourth order ladder are sequentially connected two-by-two, the second ladder and the first rank The opposite sliding of ladder, the sliding opposite with the second ladder of third ladder, fourth order ladder and third ladder relatively rotate.

Further, first ladder includes side bar I, steps on roller I, articulated slab I, articulated slab II, plate I be mounted, is sliding Block I, handrail I, telescopic device mounting blocks I and tourelle mounting plate I；

The side bar I is combined into a frame with the roller I of stepping on, and the frame includes 2 side bars I and multiple steps on roller I, frame Frame upper end is also respectively provided with articulated slab II, plate I, slider I, telescopic device mounting blocks I, tourelle mounting plate I is mounted, Slider I is located on the inside of frame, and the handrail I is mounted on frame, and the articulated slab I is mounted on I lower end of side bar.

Further, the handrail I includes handrails framework, linear bearing, and the handrails framework is made of round tube, described straight Spool is held in the round tube for being set to handrails framework, and is sleeved on the handrail of handrail II of the second ladder, and the second ladder phase is assisted First ladder is slided.

Further, second ladder includes side bar II, steps on roller II, handrail II, tourelle mounting plate II, limit peace Loading board II, sliding rail I, tourelle mounting plate III and sliding block II；

The side bar II is combined into a frame with the roller II of stepping on, and the frame includes 2 side bars II and multiple steps on roller Ⅱ；The handrail II is arranged on frame, and frame upper end is respectively arranged with tourelle mounting plate II, plate II is mounted, is sliding Block II, the sliding block II are located on the inside of frame simultaneously, and the sliding rail I, the tourelle installation are symmetrically installed on the outside of frame Plate III is mounted on the lower end of side bar II, is provided with multiple pin holes on side bar II, and sliding block II is T-slot, and sliding rail I is T-type, sliding rail I with Slider I cooperation slides the second ladder smoothly in the first ladder.

Further, the third ladder includes articulated slab III, anticollision device, collision-prevention device I, side bar III, steps on roller III, overturning pedal, rolling Dynamic device mounting plate IV, sliding rail II and hook I；

The side bar III is combined into a frame with the roller III of stepping on, and the frame includes 2 side bars III and multiple steps on roller Ⅲ；Frame upper end is provided with anticollision device, collision-prevention device I, and anticollision device, collision-prevention device I prevents the element of frame and aircraft engine from colliding, the hinge Fishplate bar III, hook I are separately mounted in the upper end of third ladder, the top of third ladder it is adjacent step between roller III to be equipped with turn over Turn pedal, the overturning pedal both ends are respectively equipped with two hinge joints, and a hinge joint is articulated on the inside of frame, another hinge joint For locking overturning pedal, it is provided with the sliding rail II on the outside of frame, the tourelle mounting plate IV is mounted under side bar III End.

Further, limiting device is provided on the overturning pedal, corresponding position, which is opened, on the inside of the frame is formed with series Limit hole, the limiting device and limit hole cooperation realize the stretching, extension of overturning pedal and collapse locking, and limiting device includes but not It is limited to index pin or Quick-release pin, sliding rail II is T-type, and sliding rail II cooperates achievable third ladder suitable in the second ladder with sliding block II Benefit sliding.When off working state, limiting device is lifted, is made in limiting device insertion limit hole, pedal, which is in, at this time collapses shape State.When operating, limiting device is lifted, making, which is held on overturning pedal in limiting device abjection limit hole, steps on roller III, work Personnel stand on pedal the working environment, it can be achieved that relative comfort.

Further, the fourth order ladder includes side bar IV, steps on roller IV, handrail III, anticollision device, collision-prevention device II, locking device and hinge Fishplate bar IV；Fourth order ladder can make service personnel station when working on the overturning pedal of third ladder, lie prone on fourth order ladder, branch Body wt is supportted, mitigates the labor intensity of worker, while maintenance area has also been enlarged；

The side bar IV is combined into a frame with the roller IV of stepping on, and the frame includes 2 side bars IV and multiple steps on roller Ⅳ；The handrail III is arranged on frame, and the anticollision device, collision-prevention device II is mounted on IV lower section of side bar, and frame lower end is equipped with locking dress It sets, articulated slab IV, I cooperation of hook realizes that the position of fourth order ladder and third ladder locks in locking device and third ladder, institute Stating locking device is hasp.

Further, the telescopic device include winch, fixed pulley, running block I, movable pulley I, haulage chain I, pin shaft, Movable pulley II, haulage chain II and haulage chain III；

Described I one end of haulage chain connects winch, and the other end is fixed on the first ladder, and bypasses fixed pulley and running block I, Fixed pulley is fixed on the first ladder；

Described II one end of haulage chain is fixed on the first ladder, and the other end is fixed on third ladder, and bypasses movable pulley I；

The first ladder is fixed in described III one end of haulage chain, and the other end is fixed on third ladder, and bypasses movable pulley II；

The running block I, movable pulley I, movable pulley II are fixed on the second ladder, and the winch is provided with self-locking dress It sets, the pin shaft is hinged for third ladder and fourth order ladder.

When winch rotates counterclockwise, running block I is driven to move up around the haulage chain I of fixed pulley, while making the Two ladders move up, and promote movable pulley I and movable pulley II that third ladder is driven to move up.Winch uses hand winch or electricity Dynamic winch, winch band self-locking device, prevents from dropping automatically；Also, when being raised to intended height, anti-fall device is operated, is realized double Relocking is stopped.When needing to shrink ladder, anti-fall device is unclamped, winch is rotated clockwise, can be realized using the gravity of ladder The recycling of ladder.

Further, the anti-fall device includes elastic device, operating device and locking system；

The elastic device passes through thread stop dog and is connected with the lock pin of locking system, and the operating device passes through elasticity dress Set connection locking system, the locking system is separately fixed at the second ladder, on third ladder, and elastic device is brake steel wire, Realize the locking of the second ladder Yu third ladder.

Further, which is characterized in that the operating device includes handlebar I and handlebar II；

The handlebar I is fastened on the locking system on the second ladder by elastic device, and the handlebar II is logical Cross the locking system that elastic device is fastened on third ladder.

Further, the locking system includes sleeve I, lock pin, spring, sleeve II and thread stop dog；

The thread stop dog is mounted on sleeve II, and the spring pocket is on the outside of lock pin and is installed along with the set Cylinder II is connect in the shell formed with sleeve I.

Further, the elevation mount includes inner sleeve, housing, screw rod, handwheel, gear I, gear II, connecting rod, connection Bar, pin shaft, articulation piece I and articulation piece II；

The inner sleeve, housing, connecting rod form a frame, and the frame includes 2 inner sleeves, 2 housings, 2 connections Bar；The inner sleeve, screw rod are set in housing, and described screw rod one end is threadedly coupled with inner sleeve, and the other end is equipped with the gear II, and screw rod is trapezoidal screw, itself has self-locking performance, for preventing elevation mount from gliding automatically；The pin shaft is mounted on outer One end far from inner sleeve is covered, pin shaft one end is connect with the handwheel, and the other end is connect with the connecting rod, and middle part is equipped with and gear II meshed gears I；Frame both ends are separately installed with articulation piece I, articulation piece II, and the articulation piece I is hinged with the first ladder Plate I is articulated and connected, and the articulation piece II and the articulated slab V of support device are articulated and connected.When rotating handwheel, by gear I with The engagement of gear II drives the rotation of screw rod, realizes the relative movement of inner sleeve and housing, adjusts angle between the first ladder and chassis Degree.

Further, the support device includes vertical beam, height adjusting support foot, idler wheel, crossbeam, hook II and articulated slab Ⅴ；

The vertical beam and crossbeam form a well word frame, are provided with articulated slab V, the height adjustment on the crossbeam Support leg is symmetricly set on vertical beam lateral surface, and the idler wheel is arranged in vertical beam bottom, and described frame one end top is provided with hook II, convenient for the transhipment of entire apparatus for examination and repair.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of aircraft engine machine overhauling ladder；

Fig. 2 is the structural schematic diagram of ladder；

Fig. 3 is the structural schematic diagram of the first ladder；

Fig. 4 is the structural schematic diagram of the second ladder；

Fig. 5 is the structural schematic diagram of third ladder；

Fig. 6 is the structural schematic diagram of fourth order ladder；

Fig. 7 is the structural schematic diagram of telescopic device；

Fig. 8 is the structural schematic diagram of anti-fall device；

Fig. 9 is the structural schematic diagram of the operating device of anti-fall device；

Figure 10 is the structural schematic diagram of the locking system of anti-fall device；

Figure 11 is the structural schematic diagram of elevation mount；

Figure 12 is the structural schematic diagram of support device.

Description of symbols

1 ladder

11 first ladders

111 side bars I 112 step on I 113 articulated slab I of roller

I 116 slider I of plate is mounted in 114 articulated slabs II 115

117 handrail, I 118 telescopic device mounting blocks, I 119 tourelle mounting plate I

1171 handrails framework, 1172 linear bearing

12 second ladders

121 side bars II 122 step on II 123 handrail II of roller

II 126 sliding rail I of plate is mounted in 124 tourelle mounting plates II 125

127 tourelle mounting plate, III 128 sliding block II

13 third ladders

131 articulated slab, III 132 anticollision device, collision-prevention device, I 133 side bar III

134 step on III 135 overturning pedal of roller, 136 tourelle mounting plate

137 sliding rails II 138 link up with I 1351 limiting devices

1352 limit holes

14 fourth orders ladder

141 side bars IV 142 step on IV 143 handrail III of roller

144 anticollision device, collision-prevention device, II 145 locking device, 146 articulated slab IV

2 telescopic devices

21 winch, 22 fixed pulley, 23 running block I

24 movable pulley, I 25 haulage chain, I 26 pin shaft

27 movable pulley, II 28 haulage chain, II 29 haulage chain III

3 anti-fall devices

31 elastic device, 32 operating device, 33 locking system

321 handlebar, I 322 handlebar, II 331 sleeve I

332 lock pin, 333 spring, 334 sleeve II

335 thread stop dogs

4 elevation mounts

41 inner sleeve, 42 housing, 43 screw rod

44 handwheel, 45 gear, I 46 gear II

47 connecting rod, 48 connecting rod, 49 pin shaft

411 articulation piece, I 421 articulation piece II

5 support devices

51 vertical beam, 52 height adjusting support foot, 53 idler wheel

54 crossbeams 55 link up with II 56 articulated slabs V

Specific embodiment

In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right, it is interior, Outside, bottom " typically refers to the orientation or positional relationship of structure current state in diagram.

As shown in Figure 1, 2, a kind of aircraft engine machine overhauling ladder, including ladder 1, telescopic device 2, anti-fall device 3, bow Face upward device 4 and support device 5；

The ladder 1, elevation mount 4 are separately mounted in the support device 5,4 other end of elevation mount and institute It is hinged to state ladder 1；

The telescopic device 2, anti-fall device 3 are mounted on the ladder 1, are located at 1 lower section of ladder；

The ladder 1 includes the first ladder 11, the second ladder 12, third ladder 13, fourth order ladder 14；Second ladder The 12 opposite slidings with first ladder 11, the third ladder 13 and the opposite sliding of second ladder 12, described the Four-step 14 and the third ladder 13 relatively rotate；

The ladder 1 realizes by telescopic device 2 and relatively moves between ladder that the anti-fall device 3 passes through locking system 33 are locked at each ladder certain elongation state, prevent ladder from dropping automatically, guarantee maintenance personal's safety, the pitching dress 4 adjusting ladder, 1 tilt angle is set, the support of support device 5 is fixed entire apparatus for examination and repair and turned for entire apparatus for examination and repair Fortune.

As shown in figure 3, first ladder 11 includes side bar I 111, steps on roller I 112, articulated slab I 113, articulated slab II 114, plate I 115, slider I 116, handrail I 117, telescopic device mounting blocks I 118, tourelle mounting plate I 119 is mounted；

The side bar I 111 is combined into a frame with the roller I 112 of stepping on, and the frame includes 2 side bars I 111 and more A to step on roller I 112, the frame upper end is also respectively provided with articulated slab II 114, plate I 115, slider I 116, flexible dress is mounted Mounting blocks I 118, tourelle mounting plate I 119 are set, the slider I 116 is located on the inside of frame, and the handrail I 117 is mounted on frame On frame, the articulated slab I 113 is mounted on I 111 lower end of side bar.

I 117 quantity of handrail is 2, and 115 quantity of slider I is 4, and the slider I 116 is T-slot.

The handrail I 117 includes handrails framework 1171, linear bearing 1172, and the handrails framework 1171 is by round tube system At the linear bearing 1172 is set in the round tube of the handrails framework 1171, and is sleeved on the handrail II of the second ladder 12 On 123 handrail, opposite first ladder 11 of the second ladder of auxiliary 12 is slided.

As shown in figure 4, second ladder 12 includes side bar II 121, steps on roller II 122, handrail II 123, tourelle peace Plate II 125, sliding rail I 126, tourelle mounting plate III 127, sliding block II 128 is mounted in loading board II 124；

The side bar II 121 is combined into a frame with the roller II 122 of stepping on, and the frame includes 2 II 121 Hes of side bar It is multiple to step on roller II 122；The handrail II 123 is arranged on frame, and the frame upper end is respectively arranged with tourelle mounting plate II 124, plate II 125, sliding block II 128 is mounted, the sliding block II 128 is located on the inside of frame simultaneously, right on the outside of the frame Title is equipped with sliding rail I 126, and the tourelle mounting plate III 127 is mounted on the lower end of the side bar II 121, the side bar II Multiple pin holes are provided on 121.

The handrail II 123, sliding rail I 126, tourelle mounting plate III 127 quantity be 2, the sliding block II 128 Quantity is 4.The sliding block II 128 is T-slot, and the sliding rail I 126 is T type.The sliding rail I 126 cooperates with slider I 116 Slide the second ladder 12 smoothly in the first ladder 11.

As described in Figure 5, the third ladder 13 includes articulated slab III 131, anticollision device, collision-prevention device I 132, side bar III 133, steps on roller III 134, overturning pedal 135, tourelle mounting plate IV 136, sliding rail II 137, hook I 138；

The side bar III 133 is combined into a frame with the roller III 134 of stepping on, and the frame includes 2 III 133 Hes of side bar It is multiple to step on roller III 134；Frame upper end is provided with anticollision device, collision-prevention device I 132, prevents the element of frame and aircraft engine from colliding, The articulated slab III 131, hook I 138 are separately mounted to the upper end of third ladder 13, and the articulated slab III 131 is used for and the 4th The articulated slab IV 146 of ladder 14 connects, and on the top of the third ladder 13, adjacent step between roller III 134 is equipped with overturning pedal 135,135 both ends of overturning pedal are respectively equipped with two hinge joints, and a hinge joint is articulated on the inside of frame, another hinge joint For locking overturning pedal, it is provided with sliding rail II 137 on the outside of frame, the tourelle mounting plate IV 136 is mounted on the side III 133 lower end of beam.

Limiting device 1351 is provided on the overturning pedal 135, corresponding position, which is opened, on the inside of the frame is formed with serial limit Position hole 1352, the limiting device 1351 includes but is not limited to index pin or Quick-release pin, when off working state, lifting limit dress 1351 are set, overturning pedal 135 is inserted into limiting device 1351 in limit hole 1352, and pedal, which is in, at this time collapses lockup state.When When work, limiting device 1351 is lifted, deviates from limiting device 1351 in limit hole 1352, overturning pedal 135 shelves pedal In stepping on roller III 134, staff stands on pedal the working environment, it can be achieved that relative comfort.Wherein articulated slab III 131, Anticollision device, collision-prevention device I 132, sliding rail II 137, link up with I 138 quantity be 2.The sliding rail II 137 is T-type, is matched with sliding block II 128 Achievable third ladder 13 is closed smoothly to slide in the second ladder 12.

As shown in fig. 6, the fourth order ladder 14 includes side bar IV 141, steps on roller IV 142, handrail III 143, anticollision device, collision-prevention device II 144, locking device 145, articulated slab IV 146；Fourth order ladder 14 can make service personnel station in the overturning pedal of third ladder 13 It when working on 135, lies prone on fourth order ladder 14, supports body wt, mitigate the labor intensity of worker, while maintenance has also been enlarged Region；

The side bar IV 141 is combined into a frame with the roller IV 142 of stepping on, and the frame includes 2 IV 141 Hes of side bar It is multiple to step on roller IV 142；The handrail III 143 is arranged on frame, and the anticollision device, collision-prevention device II 144 is mounted on the side bar IV 141 Lower section, the frame lower end are equipped with locking device 145, articulated slab IV 146.The articulated slab IV 146 and third ladder 13 Articulated slab III 131 carries out hingedly, realizing that fourth order ladder 14 relatively rotates within the scope of 0 to 180 degree with third ladder 13；The lock Tight device 145 realizes that fourth order ladder 14 and the position of third ladder 13 lock with I 138 cooperation of hook in third ladder 13, wherein Locking device 145 is hasp.The wherein quantity of handrail III 143, anticollision device, collision-prevention device II 144, locking device 145, articulated slab IV 146 It is 2.

As shown in fig. 7, the telescopic device 2 includes winch 21, fixed pulley 22, running block I 23, movable pulley I 24, traction Chain I 25, pin shaft 26, movable pulley II 27, haulage chain II 28, haulage chain III 29；

The pin shaft 26 is hinged for third ladder 13 and fourth order ladder 14；

Described I 25 one end of haulage chain connects winch 21, and the other end is fixed on the first ladder 11, and around fixed pulley 22 and moves Pulley blocks I 23, fixed pulley 22 are fixed on the first ladder 11；

Described II 28 one end of haulage chain is fixed on the first ladder 11, and the other end is fixed on third ladder 13, and around dynamic Pulley I 24；

The first ladder 11 is fixed in described III 29 one end of haulage chain, and the other end is fixed on third ladder 13, and slides around dynamic Take turns II 27；

The running block I 23, movable pulley I 24, movable pulley II 27 are fixed on the second ladder 12.

The haulage chain I 25, haulage chain II 28, haulage chain III 29 use steel cable or chain.

The winch 21 uses Hand winch or electronic winch, and is provided with self-locking device.

When winch 21 rotates counterclockwise, running block I 23 is driven to move up around the haulage chain I 25 of fixed pulley 22, Second ladder 12 moves up simultaneously, drives third ladder 13 to move up by movable pulley I 24 and movable pulley II 27, rises To specified altitude assignment, self-locking device and anti-fall device 3 act on simultaneously, realize dual locking；When needing to shrink ladder, unclamp anti-fall Device 3, winch 21 rotate clockwise, and the recycling of ladder can be realized using the gravity of ladder 1.

As shown in figure 8, the anti-fall device 3 includes elastic device 31, operating device 32, locking system 33；

The elastic device 31 passes through thread stop dog 335 and is connected with the lock pin 332 of locking system 33, the operating device 32 connect locking system 33 by elastic device 31, and the locking system 33 is separately fixed at the second ladder 12, third ladder 13 On.

The elastic device 31 is brake steel wire, and quantity is 2.

As shown in figure 9, the operating device 32 includes handlebar I 321, handlebar II 322, the handlebar I 321 passes through Elastic device 31 is fastened on the locking system 33 on the second ladder 12, and the handlebar II 322 is connected by elastic device 31 Connect the locking system 33 being fixed on third ladder 13.

The handlebar I 321 or handlebar II 322 of the operating device 32 are unclamped, elastic device 31 drives lock pin 332 to stretch Out, lock pin 332 is inserted on the second ladder 12 or 13 side bar of third ladder in the hole for system of opening, and realizes the locking function of anti-fall device 3 Energy；The handlebar I 321 or handlebar II 322 of the operating device 32 are depressed, elastic device 31 drives lock pin 332 to shrink, Lock pin 332 is deviate to open on the second ladder 12 or 13 side bar of third ladder in the hole of system, realizes the unlocking function of anti-fall device 3.

As shown in Figure 10, the locking system 33 includes sleeve I 331, lock pin 332, spring 333, sleeve II 334, spiral shell Line block 335；

The thread stop dog 335 is mounted on sleeve II 334, and the spring 333 is sleeved on 332 outside of lock pin and one Rise be mounted on the sleeve II 334 connect with sleeve I 331 formation shell in.

As shown in figure 11, the elevation mount 4 includes inner sleeve 41, housing 42, screw rod 43, handwheel 44, gear I 45, gear II 46, connecting rod 47, connecting rod 48, pin shaft 49, articulation piece I 411, articulation piece II 421；

The inner sleeve 41, housing 42, connecting rod 48 form a frame, and the frame includes 2 inner sleeves, 41,2 housings 42,2 connecting rods 48；The inner sleeve 41, screw rod 43 are set in the housing 42, described 43 one end of screw rod and 41 spiral shell of inner sleeve Line connection, the other end is equipped with the gear II 46, and screw rod 43 is trapezoidal screw, itself has self-locking performance, bows for preventing Device (4) is faced upward to glide automatically；The pin shaft 49 is mounted on the described one end of housing 42 far from inner sleeve 41, described 49 one end of pin shaft with The handwheel 44 connects, and the other end is connect with the connecting rod 47, and middle part is equipped with and II 46 meshed gears I 45 of gear；It is described Frame both ends are separately installed with articulation piece I 411, articulation piece II 421, the articulated slab I of the articulation piece I 411 and the first ladder 11 113 articulated connections, the articulation piece II 421 and the articulated slab V 56 of support device 5 are articulated and connected.

When rotating handwheel 44, by engaging for gear II 46 and gear I 45, the rotation of screw rod 43 is driven, realizes inner sleeve 41 with the relative movement of housing 42, to realize the adjusting of angle between the first ladder 11 and chassis 5.

The gear I 45, gear II 46 are bevel gears.

As shown in figure 12, the support device 5 includes vertical beam 51, height adjusting support foot 52, idler wheel 53, crossbeam 54, hangs Hook II 55, articulated slab V 56；

The vertical beam 51 forms a well word frame with crossbeam 54, is provided with articulated slab V 56 on the crossbeam 54, described Height adjusting support foot 52 is symmetricly set on 51 lateral surface of vertical beam, and the idler wheel 53 is arranged in 51 bottom of vertical beam, the frame one End top is provided with hook II 55, convenient for the transhipment of entire apparatus for examination and repair.

The idler wheel 53 uses universal wheel or direction-caster.

II 55 quantity of the hook are 2, and the height adjusting support foot 52, V 56 quantity of articulated slab are 4.

Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above In this.In the range of the technology design of the utility model, a variety of simple variants can be carried out to the technical solution of the utility model, It is combined in any suitable manner including each particular technique feature.In order to avoid unnecessary repetition, the utility model To various combinations of possible ways, no further explanation will be given.But these simple variants and combination equally should be considered as the utility model institute Disclosure belongs to the protection scope of the utility model.

Claims (14)

1. a kind of aircraft engine machine overhauling ladder, which is characterized in that including ladder (1), telescopic device (2), anti-fall device (3), elevation mount (4) and support device (5)；

After described elevation mount (4) one end and ladder (1) are hinged, the other end and the support device (5) hingedly, the ladder (1) it is made of multiple section ladders；

The telescopic device (2) and anti-fall device (3) are mounted on ladder (1)；

Ladder (1) angle and height are adjusted by telescopic device (2) and elevation mount (4), anti-fall device (3) is to each section ladder Relative movement carries out locking, prevents the automatic tenesmus of section ladder.

2. aircraft engine machine overhauling ladder according to claim 1, which is characterized in that the ladder (1) includes first Save terraced (11), two-section ladder (12), three-section ladder (13) and four-section ladder (14)；

The first segment terraced (11), two-section ladder (12), three-section ladder (13) and four-section ladder (14) are sequentially connected two-by-two, and second It saves terraced (12) and first segment ladder (11) slides relatively, three-section ladder (13) and two-section ladder (12) opposite sliding, four-section ladder (14) it is relatively rotated with three-section ladder (13).

3. aircraft engine machine overhauling ladder according to claim 2, which is characterized in that the first segment terraced (11) includes Side bar I (111), step on roller I (112), articulated slab I (113), articulated slab II (114), be mounted plate I (115), slider I (116), Handrail I (117), telescopic device mounting blocks I (118) and tourelle mounting plate I (119)；

The side bar I (111) and the roller I (112) of stepping on are combined into a frame, the frame include 2 side bars I (111) and It is multiple to step on roller I (112), frame upper end be also respectively provided with articulated slab II (114), be mounted plate I (115), slider I (116), Telescopic device mounting blocks I (118), tourelle mounting plate I (119), slider I (116) are located on the inside of frame, the handrail I (117) it is mounted on frame, the articulated slab I (113) is mounted on side bar I (111) lower end.

4. aircraft engine machine overhauling ladder according to claim 3, which is characterized in that the handrail I (117) includes helping Hand frame (1171), linear bearing (1172), the handrails framework (1171) are made of round tube, and the linear bearing (1172) sets It is placed in the round tube of handrails framework (1171), and is sleeved on the handrail of handrail II (123) of the second ladder (12), auxiliary second Ladder (12) is with respect to first segment terraced (11) sliding.

5. aircraft engine machine overhauling ladder according to claim 2, which is characterized in that the two-section ladder (12) includes Side bar II (121), step on roller II (122), handrail II (123), tourelle mounting plate II (124), be mounted plate II (125), Sliding rail I (126), tourelle mounting plate III (127) and sliding block II (128)；

The side bar II (121) and the roller II (122) of stepping on are combined into a frame, and the frame includes 2 side bars II (121) Roller II (122) is stepped on multiple；The handrail II (123) is arranged on frame, and frame upper end is respectively arranged with tourelle installation Plate II (125), sliding block II (128) are mounted in plate II (124), and the sliding block II (128) is located on the inside of frame simultaneously, frame Outside is symmetrically installed with the sliding rail I (126), and the tourelle mounting plate III (127) is mounted under side bar II (121) It holds, multiple pin holes is provided on side bar II (121), sliding block II (128) is T-slot, and sliding rail I (126) is T-type.

6. aircraft engine machine overhauling ladder according to claim 2, which is characterized in that the three-section ladder (13) includes Articulated slab III (131), side bar III (133), steps on roller III (134), overturning pedal (135), tourelle peace at anticollision device, collision-prevention device I (132) I (138) of loading board IV (136), sliding rail II (137) and hook；

The side bar III (133) and the roller III (134) of stepping on are combined into a frame, and the frame includes 2 side bars III (133) Roller III (134) is stepped on multiple；Frame upper end is provided with anticollision device, collision-prevention device I (132), the articulated slab III (131), hook I (138) point It is not mounted on the upper end of three-section ladder (13), adjacent step between roller III (134) is equipped with overturning on the top of three-section ladder (13) Pedal (135), overturning pedal (135) both ends are respectively equipped with two hinge joints, and a hinge joint is articulated on the inside of frame, separately One hinge joint is used for locking overturning pedal, is provided with the sliding rail II (137), the tourelle mounting plate IV on the outside of frame (136) it is mounted on side bar III (133) lower end.

7. aircraft engine machine overhauling ladder according to claim 6, which is characterized in that on the overturning pedal (135) It is provided with limiting device (1351), corresponding position, which is opened, on the inside of the frame is formed with serial limit hole (1352), the limiting device (1351) stretching, extension of overturning pedal (135) is realized with limit hole (1352) cooperation and collapses locking, and limiting device (1351) includes But it is not limited to index pin, Quick-release pin, sliding rail II (137) is T-type.

8. aircraft engine machine overhauling ladder according to claim 2, which is characterized in that the four-section ladder (14) includes Side bar IV (141) steps on roller IV (142), handrail III (143), anticollision device, collision-prevention device II (144), locking device (145) and articulated slab IV (146)；

The side bar IV (141) and the roller IV (142) of stepping on are combined into a frame, and the frame includes 2 side bars IV (141) Roller IV (142) is stepped on multiple；The handrail III (143) is arranged on frame, and the anticollision device, collision-prevention device II (144) is mounted on side bar IV (141) lower section, frame lower end are equipped with locking device (145), articulated slab IV (146), and the locking device (145) is hasp.

9. aircraft engine machine overhauling ladder according to claim 1, which is characterized in that the telescopic device (2) includes Winch (21), fixed pulley (22), running block I (23), movable pulley I (24), haulage chain I (25), pin shaft (26), movable pulley II (27), haulage chain II (28) and haulage chain III (29)；

Described haulage chain I (25) one end connects winch (21), and it is terraced (11) that the other end is fixed on first segment, and bypasses fixed pulley (22) With running block I (23), fixed pulley (22) is fixed on first segment terraced (11)；

Described haulage chain II (28) one end is fixed on first segment terraced (11), and the other end is fixed on three-section ladder (13), and bypasses Movable pulley I (24)；

First segment ladder (11) is fixed in described haulage chain III (29) one end, and the other end is fixed on three-section ladder (13), and around dynamic Pulley II (27)；

The running block I (23), movable pulley I (24), movable pulley II (27) are fixed on two-section ladder (12), the winch (21) it is provided with self-locking device, the pin shaft (26) is hinged for three-section ladder (13) and four-section ladder (14).

10. aircraft engine machine overhauling ladder according to claim 1, which is characterized in that the anti-fall device (3) includes Elastic device (31), operating device (32) and locking system (33)；

The elastic device (31) passes through thread stop dog (335) and is connected with the lock pin (332) of locking system (33), the operation Device (32) is separately fixed at two-section ladder by elastic device (31) connection locking system (33), the locking system (33) (12), on three-section ladder (13), elastic device (31) is brake steel wire.

11. aircraft engine machine overhauling ladder according to claim 10, which is characterized in that operating device (32) packet Include handlebar I (321) and handlebar II (322)；

The handlebar I (321) is fastened on the locking system (33) on two-section ladder (12), institute by elastic device (31) State the locking system (33) that handlebar II (322) is fastened on three-section ladder (13) by elastic device (31).

12. aircraft engine machine overhauling ladder according to claim 10, which is characterized in that locking system (33) packet Include sleeve I (331), lock pin (332), spring (333), sleeve II (334) and thread stop dog (335)；

The thread stop dog (335) is mounted on sleeve II (334), the spring (333) be sleeved on the outside of lock pin (332) and The sleeve II (334) is installed along with to connect with sleeve I (331) in the shell formed.

13. aircraft engine machine overhauling ladder according to claim 1, which is characterized in that the elevation mount (4) includes Inner sleeve (41), housing (42), screw rod (43), handwheel (44), gear I (45), gear II (46), connecting rod (47), connecting rod (48), Pin shaft (49), articulation piece I (411) and articulation piece II (421)；

The inner sleeve (41), housing (42), connecting rod (48) form a frame, and the frame includes 2 inner sleeves (41), 2 Housing (42), 2 connecting rods (48)；The inner sleeve (41), screw rod (43) are set in housing (42), described screw rod (43) one end It is threadedly coupled with inner sleeve (41), the other end is equipped with the gear II (46), and screw rod (43) is trapezoidal screw, itself has certainly Lock property, for preventing elevation mount (4) from gliding automatically；The pin shaft (49) is mounted on one of housing (42) far from inner sleeve (41) End, pin shaft (49) one end are connect with the handwheel (44), and the other end is connect with the connecting rod (47), and middle part is equipped with and gear II (46) meshed gears I (45)；Frame both ends are separately installed with articulation piece I (411), articulation piece II (421), the articulation piece I (411) articulated slab (113) with first segment terraced (11) is articulated and connected, and the articulation piece II (421) is hinged with support device (5) Plate V (56) articulated connection.

14. aircraft engine machine overhauling ladder according to claim 1, which is characterized in that the support device (5) includes Vertical beam (51), height adjusting support foot (52), idler wheel (53), crossbeam (54), II (55) of hook and articulated slab V (56)；

The vertical beam (51) and crossbeam (54) form a well word frame, are provided with articulated slab V (56) on the crossbeam (54), The height adjusting support foot (52) is symmetricly set on vertical beam (51) lateral surface, and the idler wheel (53) is arranged at vertical beam (51) bottom Portion, described frame one end top are provided with hook II (55).