CN210027976U - Lifting platform for aircraft vertical tail maintenance - Google Patents
Lifting platform for aircraft vertical tail maintenance Download PDFInfo
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- CN210027976U CN210027976U CN201920642813.9U CN201920642813U CN210027976U CN 210027976 U CN210027976 U CN 210027976U CN 201920642813 U CN201920642813 U CN 201920642813U CN 210027976 U CN210027976 U CN 210027976U
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Abstract
The utility model provides a lifting platform for the vertical tail maintenance of an airplane, which comprises a lower layer platform, wherein the top of the lower layer platform is provided with a movable working ladder, a derrick structure for installing a top layer platform lifting device is fixed on the side edge of the top of the lower layer platform, and an upper layer platform with a cantilever structure is fixed on the side wall of the top layer platform lifting device; and a locking mechanism for locking the top platform lifting device is arranged between the top platform lifting device and the derrick structure. This lift platform can be used for the maintenance of large-scale aircraft fin to use, and its lift of control that can be convenient, and then reaches different maintenance heights, satisfies the maintenance user demand of its fin, when having guaranteed to overhaul the security, great reduction operation personnel's intensity of labour, improved work efficiency.
Description
Technical Field
The utility model relates to an aircraft overhauls frock platform equipment field, especially aircraft vertical fin overhauls lift platform.
Background
In the maintenance process of the large-scale airplane empennage, because the height of the large-scale airplane empennage is high, a plurality of layers of maintenance platforms with different heights need to be set up in the maintenance process, wherein the setting up process of the maintenance platforms is complicated, the workload is high, and although a plurality of maintenance platforms with different heights exist, blind zones exist in the coverage of the airplane empennage, and the airplane empennage cannot be conveniently and comprehensively maintained; in addition, when the maintenance is finished and the maintenance needs to be disassembled, the problem of large workload is also existed. Therefore, there is a need to design a lift platform that facilitates maintenance of the tail of the aircraft.
SUMMERY OF THE UTILITY MODEL
For solving above technical problem, the utility model provides a lift platform that aircraft vertical fin overhauld, this lift platform can be used for the maintenance of large-scale aircraft fin to use, and its lift of control that can be convenient, and then reach different maintenance heights, satisfy the maintenance user demand of its fin, when having guaranteed maintenance security, great reduction operation personnel's intensity of labour, improved work efficiency.
In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the lifting platform for the vertical tail maintenance of the airplane comprises a lower layer platform, wherein a movable working ladder is arranged at the top of the lower layer platform, a derrick structure for mounting a top layer platform lifting device is fixed on the side edge of the top of the lower layer platform, and an upper layer platform with a cantilever structure is fixed on the side wall of the top layer platform lifting device; and a locking mechanism for locking the top platform lifting device is arranged between the top platform lifting device and the derrick structure.
The lower-layer platform comprises an inner frame framework, a middle frame framework and an outer frame framework which are connected in parallel, the inner frame framework, the middle frame framework and the outer frame framework are assembled by bolts for rectangular pipes, and all components are connected by adopting detachable structures; whole lower floor's platform supports at the top of many head pillars to be provided with bottom platform guardrail at its outer fringe, universal wheelset is installed to the bottom sprag of head pillar, is connected with the bottom inclined ladder at the side of frame skeleton, is located the head pillar of rear side and is fixed with the bearing diagonal.
The movable working ladder comprises a bottom fixing frame, a guide upright post is fixed on the bottom fixing frame, the guide upright post and a plurality of guide wheels arranged on the lifting frame form sliding fit, a top supporting platform is arranged at the top of the lifting frame, and a ladder stand is fixed on the side edge of the lifting frame; a bottom threaded sleeve is fixed on the bottom fixing frame and positioned in the center of the guide upright post, a top threaded sleeve is supported and installed inside the bottom threaded sleeve through a double-headed screw, and the top of the top threaded sleeve is fixedly connected with the bottom of the top supporting platform; and a first hand wheel is fixed in the middle of the double-head screw rod.
The derrick structure comprises a frame base fixed at the top of the movable working ladder, a frame framework is fixed at the top of the frame base, a middle working platform is arranged in the middle of the frame framework and supported on a middle platform support, a middle guardrail is arranged outside the middle working platform, and a middle inclined ladder is arranged on the side surface of the middle working platform; and a vertical shaft ladder stand is fixed at the center of the frame framework.
The top platform lifting device comprises two guide rails which are arranged in parallel, and the guide rails are fixedly arranged on the side wall of the derrick structure; the guide rail is characterized in that a guide chute is arranged on the inner side wall of the guide rail, lead screw fixing rods are fixed at the bottom and the top of the guide rail, and a lead screw is mounted in the middle of the side wall of each lead screw fixing rod through a lead screw mounting seat; a lifting trolley is arranged between the guide sliding chutes in a sliding fit manner, a gear transmission box assembly is fixed on a middle cross beam of the lifting trolley, the input end of the gear transmission box assembly is connected with a power device for providing power, and the output end of the gear transmission box assembly is provided with a nut which is matched with a screw rod to form screw rod transmission fit; four corners of the outer side of the lifting trolley are provided with rolling wheels which are matched with the guide sliding grooves; a guide sleeve mounting seat which is used for being in sliding fit with the screw rod is fixed on the side wall of the lifting trolley, and a guide sleeve is mounted inside the guide sleeve mounting seat; and a platform mounting rack for mounting an upper platform is fixed on the side wall of the lifting trolley.
The power device comprises a motor, an output shaft of the motor is connected with one input shaft of a double-input output speed reducer, and the other input shaft of the double-input output speed reducer is connected with a manual input mechanism; the dual-input output speed reducer is fixedly installed at the top of the gear transmission box assembly, and one of the output shafts is connected with the input end of the gear transmission box assembly.
The manual input mechanism comprises a manual input shaft, the manual input shaft is installed on the middle cross beam through a main shaft hinge seat, and a second hand wheel is installed at the other end of the manual input shaft.
The gear transmission case subassembly includes the gear box body, the internally mounted of gear box body has the driving gear, the driving gear is installed on the output shaft of power device's dual input output speed reducer, driving gear and driven gear meshing transmission, driven gear sets up in the outside of screw to can drive its rotation, the bearing is passed through at the both ends of screw and install on the gear box body.
The upper platform adopts double-deck pull structure, including upper platform skeleton, the bottom of upper platform skeleton has the pull board through bottom slide rail sliding fit, the lateral surface of pull board and upper platform skeleton all is provided with upper platform guardrail, be provided with the manual power device that stretches out that is used for driving the pull board to stretch out between pull board and the upper platform skeleton, manual power device that stretches out includes the third hand wheel, the top at the dwang is installed to the third hand wheel, the input that the bevel gear case was passed through to the bottom of dwang links to each other, drive screw is installed to the output of bevel gear case, drive screw constitutes screw drive cooperation with the nut cover of fixing in pull board bottom to it stretches out along bottom slide rail sliding.
The locking mechanism comprises a limiting rack fixed on the side wall of the derrick structure, the limiting rack is matched with an elastic bolt, the tail end of the elastic bolt is connected with a pull wire, and the pull wire bypasses a plurality of steering rollers.
The utility model discloses there is following beneficial effect:
1. this lift platform can be used for the maintenance of large-scale aircraft fin to use, and its lift of control that can be convenient, and then reaches different maintenance heights, satisfies the maintenance user demand of its fin, when having guaranteed to overhaul the security, great reduction operation personnel's intensity of labour, improved work efficiency. The utility model provides a big lift stroke work platform solution: for large-scale ultrahigh working platforms such as vertical tail working platforms, the lifting platform surface is often a cantilever platform surface, and the large lifting stroke can simplify the platform structure, reduce the platform layer number and reduce the platform weight.
2. The utility model discloses elevating gear passes through the motor, and it is rotatory with dual input output speed reducer drive gear box internal gear, and it is rotatory to drive the screw, because the lead screw is fixed motionless, the screw is rotatory to reciprocate simultaneously, drives the reciprocating in the guide rail of lift platform.
3. The utility model discloses utilize the vice self auto-lock performance of spiral, solved transmission problem and auto-lock problem, reached compact structure, pleasing to the eye, the high purpose of transmission efficiency.
4. The utility model discloses operating system is provided with emergent manual input mechanism, and under the no power supply condition, the manual work can manual operation carry out the upper platform and go up and down.
5. The utility model discloses compact structure, safe and reliable can simplify large-scale platform structure, has the ability that highly provides the working face wantonly in the stroke range.
6. Through the locking mechanism, when the upper-layer platform needs to be lifted, the upper-layer platform can be lifted through the operation of the control box, and the elastic bolt automatically resets to the limiting rack groove under the action of the spring force; when the upper platform needs to be lowered, the pull wire is pulled, the elastic bolt is separated from the rack groove, the descending control switch is connected with the power supply, the descending switch is started, the platform descends, and if the elastic bolt is not pulled open during descending, the power supply cannot be connected, so that the safety of equipment is effectively protected.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a first perspective three-dimensional view of the present invention.
Fig. 2 is a second perspective three-dimensional view of the present invention.
FIG. 3 is a three-dimensional view of a third view angle of the present invention
Fig. 4 is a partial enlarged view of the movable working ladder of fig. 1 according to the present invention.
Fig. 5 is a partial enlarged view of the upper deck of fig. 1 according to the present invention.
Fig. 6 is a partially enlarged view of the assembly between the upper deck, the derrick structure and the top deck lift of fig. 1 according to the present invention.
Fig. 7 is a first perspective three-dimensional view of the top platform lifting device of the present invention.
Fig. 8 is an enlarged view of a portion of the upper part of fig. 7 according to the present invention.
Fig. 9 is a second perspective three-dimensional view of the top platform lifting device of the present invention.
Fig. 10 is an enlarged view of a portion of the upper part of fig. 9 according to the present invention.
Fig. 11 is a three-dimensional view of the top deck platform lifting device of the present invention after the gear box is removed.
Fig. 12 is an enlarged partial structural view of the upper portion of fig. 11 according to the present invention.
In the figure: the device comprises a lower-layer platform 1, a movable working ladder 2, a derrick structure 3, a locking mechanism 4, a top-layer platform lifting device 5 and an upper-layer platform 6;
the device comprises a universal wheel set 101, a main upright post 102, a middle frame framework 103, an inner frame framework 104, a bottom platform guardrail 105, an outer frame framework 106, a bottom inclined ladder 107 and an inclined strut 108;
the device comprises a bottom fixing frame 201, a ladder 202, a lifting frame 203, a guide wheel 204, a guide upright column 205, a top supporting platform 206, a top threaded sleeve 207, a double-thread screw 208, a bottom threaded sleeve 209 and a first hand wheel 210;
the device comprises a rack base 301, a middle inclined ladder 302, a middle platform support 303, a middle working platform 304, a middle guardrail 305, a rack framework 306 and a vertical shaft ladder 307;
a limiting rack 401, a steering roller 402, a pull wire 403 and an elastic bolt 404;
the device comprises a screw rod fixing rod 501, a screw rod mounting seat 502, a screw rod 503, a guide rail 504, a guide chute 505, a guide sleeve mounting seat 506, a gear transmission box component 507, a motor 508, a middle cross beam 509, a lifting trolley 5010, rollers 5011, a platform mounting rack 5012, a second roller 5013, a manual input shaft 5014, a main shaft hinged seat 5015, a double-input and output speed reducer 5016, a nut 5017, a driven gear 5018, a driving gear 5019 and an output shaft 5020;
the two-step 601, the third hand wheel 602, the rotating rod 603, the bevel gear box 604, the transmission screw 605, the upper platform framework 606, the bottom sliding rail 607, the upper platform guardrail 608 and the drawing plate 609.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1-12, the lifting platform for aircraft vertical tail maintenance comprises a lower platform 1, a movable working ladder 2 is arranged at the top of the lower platform 1, a derrick structure 3 for installing a top platform lifting device 5 is fixed on the side edge of the top of the lower platform 1, and an upper platform 6 with a cantilever structure is fixed on the side wall of the top platform lifting device 5; and a locking mechanism 4 for locking the top platform lifting device 5 is arranged between the top platform lifting device and the derrick structure 3. By adopting the lifting platform with the structure, the two sub-platforms are symmetrically arranged in the left-right direction in the using process, and can be combined in a butt joint mode, and each sub-platform comprises an upper layer platform, a lower layer platform, a derrick structure and a movable working ladder; the platform can wrap the area near the horizontal tail of the airplane, can reach any area of the vertical tail, and is suitable for overhauling the tail section structure of the airplane body, the upper surface and the lower surface of the horizontal tail, the vertical tail and other parts. Through adopting cantilever structure with upper platform, be connected through lead screw and slide rail and derrick structure, can realize the lift of vertical height 5000mm within ranges, maximum angle deflection about not influencing the elevator and going on, and can carry out the relevant maintenance work of back end lower part. The upper platform is provided with a spiral telescopic pull plate which can be adjusted within a range of 750mm perpendicular to the course.
The clearance between each part of the platform structure and the surface of equipment such as the outline of the airplane body and an external sensor antenna is larger than 500mm, so that when the airplane is stopped and the angle is changed, each part of the platform can not contact with the airplane, and the platform is provided with a collision-proof cushion close to the relevant part of the airplane body. The lifting platform is used for overhauling the empennage of the large-sized airplane, can conveniently control the empennage to lift, further reaches different overhauling heights, meets the overhauling use requirements of the empennage, greatly reduces the labor intensity of operating personnel while ensuring the overhauling safety, and improves the working efficiency.
Further, the lower platform 1 comprises an inner frame framework 104, a middle frame framework 103 and an outer frame framework 106 which are connected side by side, the inner frame framework 104, the middle frame framework 103 and the outer frame framework 106 are assembled by bolts for rectangular pipes, and all components are connected by adopting detachable structures; the whole lower-layer platform 1 is supported on the tops of a plurality of main columns 102, bottom platform guardrails 105 are arranged on the outer edges of the main columns 102, universal wheel sets 101 are mounted on the bottom supports of the main columns 102, bottom inclined ladders 107 are connected to the side edges of outer frame frameworks 106, and inclined struts 108 are fixed on the main columns 102 located on the rear sides. Through lower floor's platform 1 be used for supporting whole lift platform, bottom inclined ladder 107 mainly used guarantees the stability of platform, and it becomes 90 with mesa rear side and arranges, can take back around the stand rotation when the platform is daily deposited. The horizontal tail end plate is provided with a sunken area for preventing the horizontal tail end plate from touching the platform surface when the airplane vibrates, and the horizontal tail end plate is suitable for the requirements of KJ-XXX airplanes.
The inner side of the inner frame framework is provided with a notch, so that the interference with the arc surface of the special machine body is avoided, and the interference with the KJ-XXX ventral fin is avoided.
Further, the movable working ladder 2 comprises a bottom fixing frame 201, a guide upright column 205 is fixed on the bottom fixing frame 201, the guide upright column 205 and a plurality of guide wheels 204 arranged on a lifting frame 203 form sliding fit, a top supporting platform 206 is arranged at the top of the lifting frame 203, and a ladder 202 is fixed on the side edge of the lifting frame 203; a bottom threaded sleeve 209 is fixed on the bottom fixing frame 201 and positioned at the central part of the guide upright column 205, a top threaded sleeve 207 is supported and installed inside the bottom threaded sleeve 209 through a double-threaded screw 208, and the top of the top threaded sleeve 207 is fixedly connected with the bottom of the top supporting platform 206; a first hand wheel 210 is fixed in the middle of the double-end screw 208. Through foretell portable work ladder 2, in the course of the work, can drive double-threaded screw 208 through rotating first hand wheel 210, and then cooperate with top threaded sleeve 207 and bottom threaded sleeve 209 simultaneously through double-threaded screw 208, and then lift up crane 203, crane 203 can rise 400mm along guide post 205, reaches 1500mm, satisfies the needs on flat tail surface.
Further, the derrick structure 3 comprises a frame base 301 fixed on the top of the movable working ladder 2, a frame framework 306 is fixed on the top of the frame base 301, a middle working platform 304 is arranged in the middle of the frame framework 306, the middle working platform 304 is supported on a middle platform support 303, a middle guardrail 305 is arranged on the outer side of the middle working platform 304, and a middle inclined ladder 302 is installed on the side surface of the middle working platform 304; a vertical shaft ladder 307 is fixed at the center of the frame framework 306. The derrick structure 3 described above is mainly used for supporting the entire top floor lifting device 5 and the upper floor 6.
Further, the top platform lifting device 5 comprises two parallel guide rails 504, and the guide rails 504 are fixedly installed on the side wall of the derrick structure 3; a guide sliding groove 505 is formed in the inner side wall of the guide rail 504, a lead screw fixing rod 501 is fixed at the bottom and the top of the guide rail 504, and a lead screw 503 is installed in the middle of the side wall of the lead screw fixing rod 501 through a lead screw installation seat 502; a lifting trolley 5010 is arranged between the guide sliding chutes 505 in a sliding fit manner, a gear transmission box assembly 507 is fixed on a middle cross beam 509 of the lifting trolley 5010, the input end of the gear transmission box assembly 507 is connected with a power device for providing power, and the output end of the gear transmission box assembly 507 is provided with a nut 5017 which is matched with the screw 503 in a screw transmission manner; four corners of the outer side of the lifting trolley 5010 are provided with rollers 5011 which are matched with the guide sliding chute 505; a guide sleeve mounting seat 506 which is used for being in sliding fit with the screw rod 503 is fixed on the side wall of the lifting trolley 5010, and a guide sleeve is mounted inside the guide sleeve mounting seat 506; a platform mounting rack 5012 for mounting the upper platform 6 is fixed on the side wall of the lifting trolley 5010. The top platform lifting device 5 with the structure can be used for lifting an upper platform 6, and further meets the maintenance of different height positions of an airplane, in the using process, the gear transmission box assembly 507 is driven by the power device, the nut 5017 is driven to rotate by the gear transmission box assembly 507, and the whole lifting trolley 5010 is driven to lift along the guide rail 504 through the lead screw transmission fit between the nut 5017 and the lead screw 503, so that the lifting platform is driven to lift finally.
Further, the power device comprises a motor 508, an output shaft of the motor 508 is connected with one input shaft of a dual-input output speed reducer 5016, and the other input shaft of the dual-input output speed reducer 5016 is connected with a manual input mechanism; the dual-input output speed reducer 5016 is fixedly mounted at the top of the gearbox assembly 507, and one of the output shafts is connected with the input end of the gearbox assembly 507. Through the power device, in the working process, the motor 508 can drive the double-input and output speed reducer 5016, and further the double-input and output speed reducer 5016 drives the gear transmission box assembly 507 to rotate.
Further, the manual input mechanism includes a manual input shaft 5014, the manual input shaft 5014 is installed on the middle cross beam 509 through a main shaft hinge base 5015, and a second hand wheel 5013 is installed at the other end of the manual input shaft 5014. Through the manual input mechanism, manual operation can be performed under the condition of power failure, in the using process, the hand wheel 5013 is rotated manually, the hand wheel 5013 drives the manual input shaft 5014, the manual input shaft 5014 drives the double-input output speed reducer 5016, and finally the lifting purpose is achieved.
Further, gear box subassembly 507 includes the gear box, the internally mounted of gear box has driving gear 5019, driving gear 5019 is installed on power device's dual input output speed reducer 5016's output shaft 5020, driving gear 5019 and driven gear 5018 meshing transmission, driven gear 5018 sets up in the outside of screw 5017 to can drive its rotation, the both ends of screw 5017 are passed through the bearing and are installed on the gear box. Through the gear transmission box assembly 507, in the working process, the driving gear 5019 can be driven through the output shaft 5020, the driven gear 5018 is driven through the driving gear 5019, the nut 5017 is driven to rotate through the driven gear 5018, and finally the whole lifting trolley 5010 is lifted through the matching between the nut 5017 and the lead screw 503.
Further, upper platform 6 adopts double-deck pull structure, including upper platform skeleton 606, the bottom of upper platform skeleton 606 has pull board 609 through bottom slide rail 607 sliding fit, the lateral surface of pull board 609 and upper platform skeleton 606 all is provided with upper platform guardrail 608, be provided with the manual power device that stretches out that is used for driving pull board 609 to stretch out between pull board 609 and the upper platform skeleton 606, the manual power device that stretches out includes third hand wheel 602, third hand wheel 602 installs the top at dwang 603, the input that the bottom of dwang 603 passes through bevel gear case 604 links to each other, drive screw 605 is installed to the output of bevel gear case 604, drive screw 605 constitutes screw drive fit with the nut cover of fixing in pull board 609 bottom to it stretches out along bottom slide rail 607 sliding. The right end of the upper layer platform is connected with the derrick through a screw rod and a slide rail and can move up and down along the guide rail through a top layer platform lifting device 5.
The lower side of the upper-layer platform framework 606 is provided with 8 spiral telescopic drawing plates which are composed of bottom sliding rails, a third hand wheel, a feeding transmission screw and a drawing plate framework, and the adjustment of the drawing plates within the distance range of 0-750 mm can be realized by rotating the third hand wheel. The edge of the pull plate is provided with a guardrail, and the end surface close to the vertical tail is provided with a protective rubber tube.
Further, the locking mechanism 4 comprises a limit rack 401 fixed on the side wall of the derrick structure 3, the limit rack 401 is matched with an elastic bolt 404, a pull wire 403 is connected to the tail end of the elastic bolt 404, and the pull wire 403 bypasses the plurality of steering rollers 402. Through the locking mechanism, when the upper platform needs to be lifted, the upper platform is lifted through the operation of the control box, and the elastic bolt 404 automatically resets to the groove of the limiting rack 401 under the action of the spring force; when the upper platform needs to be lowered, the pull wire 403 is pulled, the elastic bolt is separated from the rack groove, the descending control switch is connected with a power supply, the descending switch is started, the platform descends, and if the elastic bolt is not pulled, the power supply cannot be connected when the platform descends, so that the safety of equipment is effectively protected.
The utility model discloses a use as follows:
firstly, a motor 508 drives a driving double-input and output speed reducer 5016, then an output shaft 5020 of the double-input and output speed reducer 5016 drives a driving gear 5019, then the driving gear 5019 drives a driven gear 5018, further the driven gear 5018 drives a nut 5017 to rotate, the whole lifting trolley 5010 is lifted through the matching between the nut 5017 and a lead screw 503, and then an upper platform 6 is driven to lift along a derrick structure 3;
in the case of power failure, the manual input shaft 5014 can be manually rotated, the dual-input and output speed reducer 5016 is driven by the manual input shaft 5014, the driving gear 5019 is driven by the output shaft 5020 of the dual-input and output speed reducer 5016, the driven gear 5018 is driven by the driving gear 5019, the nut 5017 is driven to rotate by the driven gear 5018, and the whole lifting trolley 5010 can be lifted through the matching between the nut 5017 and the lead screw 503.
Claims (10)
1. The lift platform that aircraft vertical fin overhauld, its characterized in that: the lifting device comprises a lower platform (1), wherein a movable working ladder (2) is arranged at the top of the lower platform (1), a derrick structure (3) for mounting a top platform lifting device (5) is fixed on the side edge of the top of the lower platform (1), and an upper platform (6) with a cantilever structure is fixed on the side wall of the top platform lifting device (5); and a locking mechanism (4) for locking the top platform lifting device (5) is arranged between the top platform lifting device and the derrick structure (3).
2. An aircraft vertical tail service lift platform according to claim 1, wherein: the lower-layer platform (1) comprises an inner frame framework (104), a middle frame framework (103) and an outer frame framework (106) which are connected side by side, the inner frame framework (104), the middle frame framework (103) and the outer frame framework (106) are assembled by bolts for rectangular pipes, and all components are connected by adopting detachable structures; the whole lower-layer platform (1) is supported at the tops of a plurality of main columns (102), bottom platform guardrails (105) are arranged on the outer edges of the main columns, universal wheel sets (101) are mounted on the bottom supports of the main columns (102), bottom inclined ladders (107) are connected to the side edges of outer frame frameworks (106), and inclined supporting columns (108) are fixed on the main columns (102) located on the rear sides.
3. An aircraft vertical tail service lift platform according to claim 1, wherein: the movable working ladder (2) comprises a bottom fixing frame (201), a guide upright post (205) is fixed on the bottom fixing frame (201), the guide upright post (205) and a plurality of guide wheels (204) arranged on a lifting frame (203) form sliding fit, a top supporting platform (206) is arranged at the top of the lifting frame (203), and a ladder stand (202) is fixed on the side edge of the lifting frame (203); a bottom threaded sleeve (209) is fixed on the bottom fixing frame (201) and positioned at the central part of the guide upright post (205), a top threaded sleeve (207) is supported and installed inside the bottom threaded sleeve (209) through a double-threaded screw (208), and the top of the top threaded sleeve (207) is fixedly connected with the bottom of the top supporting platform (206); a first hand wheel (210) is fixed in the middle of the double-end screw (208).
4. An aircraft vertical tail service lift platform according to claim 1, wherein: the derrick structure (3) comprises a rack base (301) fixed at the top of the movable working ladder (2), a rack framework (306) is fixed at the top of the rack base (301), a middle working platform (304) is arranged in the middle of the rack framework (306), the middle working platform (304) is supported on a middle platform support (303), a middle guardrail (305) is arranged on the outer side of the middle working platform (304), and a middle inclined ladder (302) is arranged on the side surface of the middle working platform (304); a vertical shaft ladder (307) is fixed at the center of the frame framework (306).
5. An aircraft vertical tail service lift platform according to claim 1, wherein: the top platform lifting device (5) comprises two guide rails (504) which are arranged in parallel, and the guide rails (504) are fixedly arranged on the side wall of the derrick structure (3); a guide sliding groove (505) is formed in the inner side wall of the guide rail (504), a lead screw fixing rod (501) is fixed at the bottom and the top of the guide rail (504), and a lead screw (503) is installed in the middle of the side wall of the lead screw fixing rod (501) through a lead screw installing seat (502); a lifting trolley (5010) is installed between the guide sliding grooves (505) in a sliding fit manner, a gear transmission box assembly (507) is fixed on a middle cross beam (509) of the lifting trolley (5010), the input end of the gear transmission box assembly (507) is connected with a power device for providing power, and the output end of the gear transmission box assembly (507) is provided with a screw nut (5017) which is matched with a screw rod (503) in a screw rod transmission manner in a matched manner; four corners of the outer side edge of the lifting trolley (5010) are provided with rollers (5011) which are matched with the guide sliding groove (505);
a guide sleeve mounting seat (506) which is used for being in sliding fit with the screw rod (503) is fixed on the side wall of the lifting trolley (5010), and a guide sleeve is mounted inside the guide sleeve mounting seat (506);
and a platform mounting rack (5012) for mounting an upper platform (6) is fixed on the side wall of the lifting trolley (5010).
6. An aircraft vertical tail servicing lift platform according to claim 5, wherein: the power device comprises a motor (508), an output shaft of the motor (508) is connected with one input shaft of a double-input and output speed reducer (5016), and the other input shaft of the double-input and output speed reducer (5016) is connected with a manual input mechanism; the double-input and output speed reducer (5016) is fixedly installed at the top of the gear transmission box assembly (507), and one output shaft of the double-input and output speed reducer is connected with the input end of the gear transmission box assembly (507).
7. An aircraft vertical tail servicing lift platform according to claim 6, wherein: the manual input mechanism comprises a manual input shaft (5014), the manual input shaft (5014) is installed on the middle cross beam (509) through a main shaft hinge seat (5015), and a second hand wheel (5013) is installed at the other end of the manual input shaft (5014).
8. An aircraft vertical tail servicing lift platform according to claim 5, wherein: gear box subassembly (507) includes the gearbox casing, the internally mounted of gearbox casing has driving gear (5019), output shaft (5020) at power device's dual input output speed reducer (5016) are installed to driving gear (5019), driving gear (5019) and driven gear (5018) meshing transmission, driven gear (5018) set up in the outside of screw (5017) to can drive its rotation, the bearing is passed through at the both ends of screw (5017) and is installed on the gearbox casing.
9. An aircraft vertical tail servicing lift platform according to claim 5, wherein: the upper platform (6) adopts a double-layer drawing structure and comprises an upper platform framework (606), wherein a drawing plate (609) is arranged at the bottom of the upper platform framework (606) in a sliding fit mode through a bottom sliding rail (607), upper platform guardrails (608) are arranged on the outer side surfaces of the drawing plate (609) and the upper platform framework (606), a manual extending power device used for driving the drawing plate (609) to extend out is arranged between the drawing plate (609) and the upper platform framework (606), the manual extending power device comprises a third hand wheel (602), the third hand wheel (602) is arranged at the top of a rotating rod (603), the bottom end of the rotating rod (603) is connected through the input end of a bevel gear box (604), a transmission screw (605) is arranged at the output end of the bevel gear box (604), and the transmission screw (605) is in a threaded transmission fit with a nut sleeve fixed at the bottom of the drawing plate (609), and drives it to slide out along the bottom slide rail (607).
10. An aircraft vertical tail service lift platform according to claim 1, wherein: the locking mechanism (4) comprises a limiting rack (401) fixed on the side wall of the derrick structure (3), the limiting rack (401) is matched with an elastic bolt (404), the tail end of the elastic bolt (404) is connected with a pull wire (403), and the pull wire (403) bypasses a plurality of steering rollers (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920642813.9U CN210027976U (en) | 2019-05-07 | 2019-05-07 | Lifting platform for aircraft vertical tail maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920642813.9U CN210027976U (en) | 2019-05-07 | 2019-05-07 | Lifting platform for aircraft vertical tail maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210027976U true CN210027976U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201920642813.9U Active CN210027976U (en) | 2019-05-07 | 2019-05-07 | Lifting platform for aircraft vertical tail maintenance |
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| CN (1) | CN210027976U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110155362A (en) * | 2019-05-07 | 2019-08-23 | 中国人民解放军第五七一零工厂 | The hoistable platform of aircraft vertical fin maintenance |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110155362A (en) * | 2019-05-07 | 2019-08-23 | 中国人民解放军第五七一零工厂 | The hoistable platform of aircraft vertical fin maintenance |
| CN110155362B (en) * | 2019-05-07 | 2024-03-29 | 凌云(宜昌)航空装备工程有限公司 | Lifting platform for overhauling vertical fin of airplane |
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Effective date of registration: 20200703 Address after: No.1 Lingyun Road, Yuyang office, Dangyang city, Yichang City, Hubei Province Patentee after: Lingyun (Yichang) aviation equipment Engineering Co., Ltd Address before: 444100 98 Yuen Nan Road, Yuyang office, Dangyang city, Yichang, Hubei Patentee before: NO.5710 FACTORY OF PLA |
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Effective date of registration: 20200821 Address after: No.1 Lingyun Road, Yuyang office, Dangyang city, Yichang City, Hubei Province Co-patentee after: LINGYUN SCIENCE & TECHNOLOGY GROUP Co.,Ltd. Patentee after: Lingyun (Yichang) aviation equipment Engineering Co., Ltd Address before: No.1 Lingyun Road, Yuyang office, Dangyang city, Yichang City, Hubei Province Patentee before: Lingyun (Yichang) aviation equipment Engineering Co., Ltd |