Crane for disassembling and assembling electrically-driven self-walking canopy seat of airplane

Abstract

The invention belongs to the technical field of aviation cockpits and seats, and particularly relates to a crane for disassembling and assembling an electrically-driven self-walking cockpit seat of an airplane. The vehicle body is supported on the ground through the universal ground feet and the ground foot supporting arms, and meanwhile, the first-order arm, the second-order arm and the third-order arm can be contracted, so that the effects of stabilizing the crane and facilitating folding and recycling are achieved, and the problems that the height is too high and swinging is caused in the transportation process due to the fact that lifting arms of most existing mounting cranes cannot be folded are solved; the stability of the crane is improved, and the occupied space of the crane is reduced. The lifting hook is rotated in multiple directions through the rotary support and the rotary seat, and meanwhile, the torque of a lifted weight is kept not to be exceeded, so that the effect of smaller friction loss between parts is achieved, and the problem that the precision is inaccurate due to the fact that the parts and transmission gears and bearings of the parts are abraded after an existing crane is used for a long time is solved; the practicability of the crane is improved, and the service life of the crane is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation canopies and seats, and in particular relates to a crane for disassembling and assembling an aircraft electrically driven self-propelled canopy seat. Background Art

[0002] At present, the development of automated lifting equipment has matured. Large-scale lifting equipment includes motorized lifting equipment supported by carriers, small-scale lifting machines include lifting "hoists" supported by tripods, and simple swing booms supported by hydraulic cylinders, while there are no documents or data records of lightweight and simple mobile cranes. At present, there are no special lifting equipment for aircraft canopies and seats in narrow spaces, and loading operations are mainly completed with the assistance of large cranes. Large cranes are not suitable for small-site operations, so a suitable crane is needed to assist in the work.

[0003] The Chinese patent document with the announcement number CN216336272U discloses an auxiliary crane for installing and removing aircraft seats or cabin covers, including a base, on which a first hinge seat is fixed; the first hinge seat is hinged to a support plate; a limit column is fixed to the support plate; a support limit column is connected to the limit column; a hand crank is provided at the upper end of the support limit column; a support circular plate is fixed to the lower end of the support limit column; a pillar is provided on the base; a second hinge seat is provided on the pillar; a third hinge seat is provided on the base; a support column is hinged between the third hinge seat and the second hinge seat; and a column is connected to the pillar. The beneficial effects of this solution are convenient and stable movement, but the boom cannot be folded during recovery and transportation, which leads to excessive height and shaking during transportation, posing a great safety hazard. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose an electrically driven self-propelled crane for installing a cockpit cover seat of an aircraft, aiming to improve the problem that most of the existing installation cranes cannot fold the boom, resulting in excessive height and swaying during transportation.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An electrically driven self-propelled crane for installing a cockpit canopy seat on an aircraft comprises a vehicle body and a telescopic arm driving motor, wherein the interior of the vehicle body is rotatably connected to a plurality of symmetrically arranged driving wheels, the interior of the vehicle body is rotatably connected to a plurality of symmetrically arranged ground support arms, the front end of the ground support arm is fixedly connected to a universal ground support; a rotating driving hand wheel is arranged on the outer wall of the vehicle body, the output shaft of the driving hand wheel is connected to the ground support arm, a winch is arranged on the upper surface of the vehicle body, the output end of the telescopic arm driving motor is fixedly connected to a first-stage arm, the outer wall of the first-stage arm is rotatably connected to a plurality of wire rope rollers, and the outer wall of the first-stage arm is fixedly connected to a hook; The first-order arm is internally slidably connected to the second-order arm, and the second-order arm is internally slidably connected to the third-order arm, and a boom head is provided on the front end outer wall of the third-order arm; wire rope rollers are provided at the front ends of the second-order arm and the third-order arm, and all the wire rope rollers are collinear, and a wire rope is provided on the outer wall of the wire rope roller, one end of the wire rope is fixedly connected to the winch, and the other end passes around the outer wall of each wire rope roller, passes around the cross arm and the hook, and then is fixed to the middle part of the outer wall of the cross arm; the boom head is internally rotatably connected to the cross arm, and a cross arm bracket is provided on the outer wall of the third-order arm, and a hook is provided on the outer wall of the cross arm; a support assembly is provided on the outer wall of the first-order arm.

[0007] Furthermore, the support assembly includes a boom support, the bottom end of the boom support is fixed to the upper surface of the vehicle body, and the top outer wall of the boom support is slidably connected to the outer wall of the first-step arm.

[0008] Furthermore, a rotating support is fixedly connected to the upper surface of the vehicle body, and a rotating seat is provided on the outer wall of the rotating support.

[0009] Furthermore, an electric cylinder is fixedly connected to the outer wall of the rotating support, and an output end of the electric cylinder is fixedly connected to the inside of the rotating seat.

[0010] Furthermore, an electric control box is fixedly connected to the upper surface of the vehicle body.

[0011] Furthermore, a warning light is arranged inside the vehicle body, a sensor is arranged inside the vehicle body, and the warning light and the sensor are connected to an electric control box.

[0012] Furthermore, a pin hole is provided inside the cross arm.

[0013] Beneficial effects of the present invention:

[0014] 1. In the present invention, the vehicle body is supported on the ground by the universal feet and the feet support arms, and at the same time the first-order arm, the second-order arm and the third-order arm can be retracted, so as to achieve the effect of stabilizing the crane and facilitating folding and recovery. This solves the problem that most of the existing installation cranes cannot fold the arms, resulting in excessive height and swaying during transportation, improves the stability of the crane, and reduces the space occupied by the crane.

[0015] 2. In the present invention, the hook is rotated in multiple directions by means of a rotating support and a rotating seat, while keeping the torque not exceeding the hoisted weight, thereby achieving the effect of reducing the friction loss between parts, solving the problem of inaccurate precision caused by wear of parts and transmission gears and bearings of existing cranes after long-term use, thereby improving the practicability of the crane and extending the service life of the crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of a crane for disassembling and assembling an electrically driven self-propelled cockpit canopy seat of an aircraft according to the present invention;

[0017] Figure 2 It is a side view of a crane for disassembling and assembling an electrically driven self-propelled cockpit canopy seat of an aircraft according to the present invention;

[0018] Figure 3 It is a rear view of a crane for disassembling and assembling an electrically driven self-propelled cockpit canopy seat of an aircraft according to the present invention;

[0019] Figure 4 The present invention is a top view of a crane for disassembling and assembling an electrically driven self-propelled cockpit canopy seat of an aircraft.

[0020] In the figure: 1. universal anchor; 2. driving wheel; 3. anchor support arm; 4. vehicle body; 5. rotating drive hand wheel; 6. winch; 7. rotating support; 8. rotating seat; 9. telescopic arm driving motor; 10. electric cylinder; 11. wire rope roller; 12. first-order arm; 13. hook hanger; 14. second-order arm; 15. wire rope; 16. third-order arm; 17. cross arm bracket; 18. boom head; 19. pin hole; 20. cross arm; 21. hook; 22. boom support; 23. electric control box; 24. warning light; 25. sensor. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and technical solutions.

[0022] Reference Figure 1-3The present invention provides an embodiment: an electrically driven self-propelled crane for installing a cockpit canopy seat of an aircraft, comprising a car body 4 and a telescopic arm driving motor 9, wherein the interior of the car body 4 is rotatably connected to a plurality of symmetrically arranged driving wheels 2, and the interior of the car body 4 is rotatably connected to a plurality of symmetrically arranged ground support arms 3, and the front end of the ground support arm 3 is fixedly connected to a universal ground support 1; a rotating driving hand wheel 5 is provided on the outer wall of the car body 4, and the output shaft of the driving hand wheel 5 is connected to the ground support arm 3, and a winch 6 is provided on the upper surface of the car body 4, and the output end of the telescopic arm driving motor 9 is fixedly connected to a first-stage arm 12, and the outer wall of the first-stage arm 12 is rotatably connected to a plurality of wire rope rollers 11, and the outer wall of the first-stage arm 12 is fixedly connected to a hook 13; the interior of the first-stage arm 12 A second-order arm 14 is slidably connected, and a third-order arm 16 is slidably connected inside the second-order arm 14, and a boom head 18 is provided on the outer wall of the front end of the third-order arm 16; wire rope rollers 11 are provided at the front ends of the second-order arm 14 and the third-order arm 16, and all the wire rope rollers 11 are in line, and a wire rope 15 is provided on the outer wall of the wire rope roller 11, and one end of the wire rope 15 is fixedly connected to the winch 6, and the other end passes around the outer wall of each wire rope roller 11, passes around the cross arm 20 and the hook 21, and then is fixed to the middle part of the outer wall of the cross arm 20. The inside of the boom head 18 is rotatably connected with the cross arm 20, and the outer wall of the third-order arm 16 is provided with a cross arm bracket 17, and the outer wall of the cross arm 20 is provided with a hook 21; the outer wall of the first-order arm 12 is provided with a supporting assembly;

[0023] Specifically, the driving wheel 2 is connected to the bottom of the vehicle body 4, and the anchor support arm 3 and the universal anchor 1 are connected to the outer sides of the vehicle body 4, so that the rotating driving hand wheel 5 can be driven by the anchor support arm 3 to drive the universal anchor 1 to rotate on the outside of the vehicle body 4, and then supported on the ground by the universal anchor 1, so as to achieve the effect of stabilizing the vehicle body 4, and then the winch 6 pulls the wire rope 15, so that the wire rope 15 slides on the wire rope roller 11, and at the same time pulls the cross arm 20 and the hook 21, the cross arm 20 is connected to the outside of the third-order arm 16 by the boom head 18, so that the hook 21 can rotate, and then the telescopic arm drive motor 9 drives the first-order arm 12, the second-order arm 14 and the third-order arm 16 to telescope, so that the first-order arm 12, the second-order arm 14 and the third-order arm 16 can be extended or shortened, thereby achieving the effect of stabilizing the crane and facilitating folding and recovery, improving the stability of the crane, and reducing the occupied space of the crane.

[0024] Reference Figure 1 The support assembly includes a boom support 22, the bottom end of the boom support 22 is fixed to the upper surface of the vehicle body 4, and the top outer wall of the boom support 22 is slidably connected to the outer wall of the first-stage arm 12;

[0025] Specifically, the boom support 22 is connected between the vehicle body 4 and the first-stage arm 12 , so that the boom support 22 can support the third-stage arm 16 , thereby stabilizing the position of the first-stage arm 12 .

[0026] Reference Figure 2-4 The upper surface of the vehicle body 4 is fixedly connected with a rotating support 7, and a rotating seat 8 is arranged on the outer wall of the rotating support 7; an electric cylinder 10 is fixedly connected with the outer wall of the rotating support 7, and the output end of the electric cylinder 10 is fixedly connected to the inside of the rotating seat 8; an electric control box 23 is fixedly connected with the upper surface of the vehicle body 4; a warning light 24 is arranged inside the vehicle body 4, and a sensor 25 is arranged inside the vehicle body 4; a pin hole 19 is opened inside the cross arm 20;

[0027] Specifically, the rotating seat 8 is driven to rotate on the rotating support 7 by the electric cylinder 10, and the electric control box 23 arranged inside the car body 4 can control the warning light 24 and the sensor 25. When a special situation occurs, the sensor 25 senses it, and the warning light 24 flashes to give a certain warning, thereby ensuring that the torque range between the center and the center of gravity of the rotating seat 8 does not exceed the torque of the hoisted weight, thereby achieving the effect of reducing the friction loss between smaller parts, improving the practicability of the crane, and extending the service life of the crane.

[0028] Working principle: The driving vehicle body stabilization technology is to ensure the stability of the vehicle body 4 during the walking process. The driving wheels 2 all adopt a front-guided and rear-driven driving system. At the same time, the four universal feet 1 adopt a floating "I"-shaped chassis, which can ensure the stability of the crane body 4 on a single-sided undulating road surface; then the first-order arm 12, the second-order arm 14 and the third-order arm 16 are synchronously extended and retracted, and the winch 6 drives the wire rope 15 to slide on the wire rope roller 11. At the same time, the wire rope 15 pulls the cross arm 20 to swing, and then drives the cross arm bracket 17 to pull the hook 21, and then driven by the telescopic arm drive motor 9. The stabilization technology of the rotating seat 8 belongs to the boom rotating seat 8. It adopts an externally purchased rotating bearing support and an extension shaft and the driving hand wheels on both sides of the trolley, and realizes azimuth rotation through gear chain transmission. It can rotate 360°, but according to the actual working conditions on site and the internal line insertion, it can realize the left-hand and right-hand rotation angles of 120°. At the same time, the value is designed by calculating the center of gravity position. When working at any angle, the torque range between the center of the rotating seat 8 and the center of gravity does not exceed the torque of the hoisted weight.

Claims

1. An electrically driven self-propelled crane for disassembling and assembling a canopy seat of an aircraft, comprising a vehicle body (4) and a telescopic arm drive motor (9), characterized in that: The vehicle body (4) is internally rotatably connected to a plurality of symmetrically arranged driving wheels (2), and the vehicle body (4) is internally rotatably connected to a plurality of symmetrically arranged ground support arms (3), and the front end of the ground support arm (3) is fixedly connected to a universal ground foot (1); the outer wall of the vehicle body (4) is provided with a rotating driving hand wheel (5), and the output shaft of the driving hand wheel (5) is connected to the ground support arm (3); the upper surface of the vehicle body (4) is provided with a winch (6); the output end of the telescopic arm driving motor (9) is fixedly connected to a first-stage arm (12), and the outer wall of the first-stage arm (12) is rotatably connected to a plurality of wire rope rollers (11), and the outer wall of the first-stage arm (12) is fixedly connected to a hook (13); the first-stage arm (12) is internally slidably connected to a second-stage arm (14), and the second-stage arm (14) is internally A third-order arm (16) is slidably connected, and a boom head (18) is provided on the front outer wall of the third-order arm (16); wire rope rollers (11) are provided on the front ends of the second-order arm (14) and the third-order arm (16), and all the wire rope rollers (11) are collinear; a wire rope (15) is provided on the outer wall of the wire rope roller (11), and one end of the wire rope (15) is fixedly connected to the winch (6), and the other end of the wire rope (15) passes around the outer wall of each wire rope roller (11), passes around the cross arm (20) and the hook (21), and is then fixed to the middle part of the outer wall of the cross arm (20); the boom head (18) is rotatably connected to the cross arm (20) inside, and a cross arm bracket (17) is provided on the outer wall of the third-order arm (16), and a hook (21) is provided on the outer wall of the cross arm (20); a support assembly is provided on the outer wall of the first-order arm (12).

2. The electrically driven self-propelled crane for installing a canopy seat for an aircraft according to claim 1, characterized in that: The support assembly comprises a boom support (22), the bottom end of the boom support (22) is fixed to the upper surface of the vehicle body (4), and the top outer wall of the boom support (22) is slidably connected to the outer wall of the first-step arm (12).

3. The electrically driven self-propelled crane for installing a canopy seat of an aircraft according to claim 2, characterized in that: The upper surface of the vehicle body (4) is fixedly connected to a rotating support (7), and the outer wall of the rotating support (7) is provided with a rotating seat (8).

4. The electrically driven self-propelled crane for installing a cockpit canopy seat of an aircraft according to claim 3, characterized in that: An electric cylinder (10) is fixedly connected to the outer wall of the rotating support (7), and an output end of the electric cylinder (10) is fixedly connected to the inside of the rotating seat (8).

5. The electrically driven self-propelled crane for installing a cockpit canopy seat of an aircraft according to claim 4, characterized in that: An electric control box (23) is fixedly connected to the upper surface of the vehicle body (4).

6. The electrically driven self-propelled crane for installing a cockpit canopy seat of an aircraft according to claim 5, characterized in that: A warning light (24) is arranged inside the vehicle body (4), and a sensor (25) is arranged inside the vehicle body (4). The warning light (24) and the sensor (25) are connected to an electric control box (23).

7. The electrically driven self-propelled crane for installing a cockpit canopy seat of an aircraft according to claim 6, characterized in that: A pin hole (19) is provided inside the cross arm (20).

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