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CN-121974230-A - Automatic telescopic positioning device for hoisting floor of aircraft cabin

CN121974230ACN 121974230 ACN121974230 ACN 121974230ACN-121974230-A

Abstract

The invention discloses an automatic telescopic positioning device for lifting an aircraft cabin floor, which is characterized in that four positioning ball rods (105) of a positioning cross beam (1) are utilized to be positioned and fixed on assembly type rack ball sockets on two sides of an aircraft, a fixed steel cage (2) is connected with the positioning cross beam (1) through bolts, under the automatic control of a control cabinet (4), a screw and nut kinematic pair structure (5) and precise sliding rails (6) arranged on two sides of the fixed steel cage (2) drive a movable steel cage (3) to do z-direction movement, and the movable steel cage (3) is connected with the aircraft floor through quick-release threaded pins (7) so as to meet the lifting of aircraft cabin floor components. The invention has the advantages that the problems that positioning is difficult, a worker is inconvenient to install the floor in a machine body after lifting and positioning and the like caused by difficulty in accurately avoiding surrounding products in the lifting process of the floor of the aircraft cabin are effectively solved, the traditional fixed lifting appliance is broken, the problem of low efficiency in the lifting process of the floor of the aircraft cabin is solved, and the invention provides a flexible design scheme idea for adapting to lifting of various parts in the aircraft, effectively reduces design and manufacturing cost and lifting appliance management cost and is novel in design.

Inventors

  • WU LONGHUI
  • MIAO YANPING
  • WEI WEI
  • XU LEI
  • XIAO DEZHI
  • WU FAN

Assignees

  • 江西制造职业技术学院(江西省机械科学研究所、江西省机械产品质量监督总站)

Dates

Publication Date
20260505
Application Date
20260128

Claims (7)

  1. 1. The automatic telescopic positioning device for lifting the floor of the aircraft cabin is characterized in that four positioning ball head rods (105) of a positioning cross beam (1) are utilized to be positioned and fixed on assembly type rack ball sockets on two sides of the aircraft, a fixed steel cage (2) is connected with the positioning cross beam (1) through bolts, under the automatic control of a control cabinet (4), a screw nut kinematic pair structure (5) and precise sliding rails (6) arranged on two sides of the fixed steel cage (2) drive a movable steel cage (3) to move in the z direction, and the movable steel cage (3) is connected with the floor of the aircraft through quick-release threaded pins (7) so as to meet the lifting of components of the floor of the aircraft.
  2. 2. The automatic telescopic positioning device for lifting the floor of the aircraft cabin according to claim 1, wherein the positioning cross beam (1) is composed of a long cross beam (101), a side longitudinal beam (102), a foot support (103), a lifting ring (104) and a positioning ball rod (105), the positioning ball rod (105) is connected to the bottom plane of the foot support (103) in a threaded mode, the long cross beam (101), the foot support (103) and the side longitudinal beam (102) are assembled and fixed through bolts and cylindrical pins respectively, and the lifting ring (104) is installed on the long cross beam (101) and the side longitudinal beam (102) to meet lifting under different working conditions.
  3. 3. The automatic telescopic positioning device for hoisting the floor of the aircraft cabin according to claim 1 is characterized in that four connecting plates (201) are welded on the fixed steel cage (2), enlarged holes are formed in the plates and are used for being connected with the positioning cross beam (1), and a sliding rail installation supporting plate, a lead screw nut kinematic pair structure (5) supporting plate and the like are welded on the fixed steel cage (2) at the same time.
  4. 4. The automatic telescopic positioning device for lifting the floor of the aircraft cabin according to claim 1, wherein the movable steel cage (3) is welded with an integral connecting plate (301), and the plate is provided with an enlarged hole and is connected with the floor of the aircraft cabin and other parts through a quick-release threaded pin (7).
  5. 5. The automatic telescopic positioning device for hoisting the floor of the aircraft cabin according to claim 1 is characterized in that the screw nut kinematic pair structure (5) is controlled by a module of a control cabinet (4), a servo motor (501) provides torque to drive a speed reducer (502) to rotate, the speed reducer (502) is connected with a screw (506) through a coupler (503), the rotary motion of the screw (506) drives a support nut (507) to do linear motion, the upper end of the screw (506) is connected with a bearing support seat (504), the lower end of the screw is connected with a bearing support (508), the support nut (507) is connected with a movable steel cage (3) through a bolt, and the support nut (507) drives the movable steel cage (3) to do Z-direction motion under the support guide of a precise sliding rail (6).
  6. 6. The automatic telescopic positioning device for lifting the floor of the aircraft cabin according to claim 1, wherein limit sensor devices are arranged on the movable steel cage (3) and the fixed steel cage (2) to ensure that the movable steel cage (3) does not move up and down by more than the maximum stroke displacement.
  7. 7. The automatic telescopic positioning device for lifting the floor of the aircraft cabin according to claim 1, wherein the movable steel cage (3) can change the structure of the welded integral connecting plate (301) and adapt to the lifting and positioning of various aircraft parts.

Description

Automatic telescopic positioning device for hoisting floor of aircraft cabin Technical Field The invention relates to the field of mechanical design and automatic control engineering, in particular to an aircraft component assembly process and an automatic device design for hoisting under the working condition of aviation large-span products. Background At present, most devices used by aviation enterprises are also trussed vehicles in workshops, and a plurality of binding bands are arranged according to the structure of a lifted product to finish lifting of aviation component products. However, in some specific occasions, when the product itself carries hanging points, in order to ensure stable hanging assembly of the product, some fixed frame type devices are designed, and hanging is completed by adopting a multi-hanging point mode. For the hoist and mount of large-scale wallboard class product part, the existing patent has used large-scale aluminum alloy to take gusset vacuum chuck formula overhead hoist, but is latticed to aircraft cabin floor structure, and realizes accurate hoist and mount difficulty in limited space scope, and manual operation assembly riveting inconvenience. The invention also discloses an adjustable automobile top cover device which comprises an I-shaped hanging bracket consisting of a transverse connecting rod and a longitudinal connecting rod, wherein the vacuum sucker is movably connected with the horizontal supporting rod through the vertical connecting rod, and the control handle is connected with the transverse connecting rod through the hanging bracket connecting rod and the handle connecting rod which are hinged together. The patent structure is difficult to meet the working condition of poor openness, and deep butt joint cannot be conducted in the z direction. To sum up, in order to solve the problems that the positioning difficulty is caused by needing to precisely avoid surrounding products in the lifting process of the aircraft cabin floor, the cabin floor is inconvenient to install in the machine body by workers after lifting and positioning, and the like, the device for positioning by utilizing the space of the ball socket and automatically stretching in the z direction is provided, and meanwhile, the workers can install the cabin floor by means of the device bearing structure, so that the problems can be effectively and thoroughly solved. The technology of this patent is now expanding in this context. Disclosure of Invention The invention mainly solves the problems of difficult positioning caused by the need of precisely avoiding surrounding products in the lifting process of the floor of the aircraft cabin, inconvenience for workers to install the floor in the aircraft body after lifting and positioning, and the like, provides a device which utilizes the space positioning of the ball socket and automatically stretches in the z direction, simultaneously meets the requirement that the workers can install the floor by means of the bearing structure of the device, and can effectively and thoroughly solve the problems. The invention also aims to break through the traditional fixed device, solve the problem of low efficiency in the lifting process of the floor of the aircraft cabin and provide an efficient automatic telescopic device. The invention also aims to provide a flexible design scheme for adapting to the hoisting of various parts in the aircraft, and effectively reduces the design and manufacturing cost and the device management cost. The invention mainly solves the technical problems through the following scheme: The automatic telescopic positioning device for lifting the floor of the aircraft cabin is characterized in that four positioning ball heads of a positioning beam are utilized to be positioned and fixed on assembly type rack ball sockets on two sides of the aircraft, a fixed steel cage is connected with the positioning beam through bolts, under the automatic control of a control cabinet, a screw nut kinematic pair structure and precise sliding rails arranged on two sides of the fixed steel cage drive the movable steel cage to move in the z direction, and the movable steel cage is connected with the floor of the aircraft cabin through a quick-release threaded pin, so that lifting of floor components of the aircraft cabin is met. According to the automatic telescopic positioning device for lifting the floor of the aircraft cabin, the positioning ball head rod is connected to the bottom plane of the foot support in a threaded mode, the long cross beam, the foot support and the side longitudinal beam are assembled and fixed through bolts and cylindrical pins respectively, and the hanging rings are arranged on the long cross beam and the side longitudinal beam, so that lifting under different working conditions is achieved. The automatic telescopic positioning device for hoisting the floor of the aircraft cabin is characterized in that four connecting plates