CN220764699U - Transfer device for aircraft emergency traction - Google Patents

Abstract

The utility model relates to the technical field of aviation ground facilities, in particular to a transfer device for airplane emergency traction, which is provided with a frame for placing airplane tires, wherein universal casters are arranged at the bottom of the frame, a traction rod is further arranged on the frame to traction the frame, a sinking area is arranged on the frame to accommodate the tires, two wheel brackets which are obliquely arranged in opposite directions are arranged in the sinking area to clamp tire treads, and the extension surfaces of the two wheel brackets are arranged in a V shape; the sinking area is provided with an opening at least at one of the left side and the right side of the wheel support for the tire to enter the sinking area from the opening, and the opening is provided with a movable puller for limiting the tire to shake along the wheel shaft direction in the traction process. According to the utility model, the sinking area is arranged on the frame, and the opening is arranged on the side surface of the sinking area, so that the tire can be installed in the transfer device when the undercarriage is at a lower lifting height.

Description

Transfer device for aircraft emergency traction

Technical Field

The utility model relates to the technical field of aviation ground facilities, in particular to equipment for carrying an aircraft, and particularly relates to a transfer device for emergency traction of the aircraft.

Background

The landing gear is a device used for taking off, landing and sliding on the ground and moving the functions of the lower part of the aircraft, and is an important supporting system for guaranteeing the use and safety of the aircraft.

The landing gear must not only support the entire weight of the aircraft, but also withstand the impact and jolt energy of the aircraft while moving on the ground.

The landing of an aircraft can create significant impact forces on the ground that require landing gear to withstand. In order to meet the requirements of taking off, landing running and ground sliding of an airplane, the lowest wheel of the undercarriage of the airplane is provided with a pneumatic tire.

In the process of taking off or landing of the aircraft, the tire on the landing gear can possibly generate burst emergency situations such as tire burst or locking, for example, the tire with faults of the aircraft is replaced and maintained on site, and the whole process is long in time, so that the subsequent taking-off and landing tasks of the aircraft are influenced.

The utility model patent with the publication number of CN108860648A discloses a device for moving a main landing gear in the aviation field, which consists of a frame, a front clamping block, a rear clamping block, a power unit, a control unit and a traveling unit, wherein the front clamping block is fixed at the position of the frame near the front end, the rear clamping block is detachably connected to the rear end of the frame, the traveling unit is symmetrically arranged on two sides of the frame, and a space for placing landing gear wheels is enclosed among the frame, the front clamping block and the rear clamping block. When the airplane runway is used, the frame, the front clamping blocks and the rear clamping blocks are matched to hold the landing gear wheels, and the moving device replaces damaged tires of the main landing gear to walk so as to quickly transfer the airplane to the runway.

However, the wheel holding type moving device is complex in structure, the installation of the rear clamping blocks is time-consuming and labor-consuming in the use process, and some parts on the landing gear can be possibly touched or even damaged in the wheel holding process, so that the subsequent use safety of the landing gear can not be ensured.

Disclosure of Invention

The utility model provides a transfer device for emergency traction of an airplane, which aims to solve the technical problems that a wheel-holding type transfer device is complex in structure and some parts on a main landing gear can be even damaged in the wheel-holding process.

In order to solve the problems, the utility model provides a transfer device for airplane emergency traction, which adopts the following technical scheme:

the transfer device for the emergency traction of the aircraft is provided with a frame for placing the tires of the aircraft, universal casters are arranged at the bottom of the frame, a traction rod is arranged on the frame for traction of the frame, a sinking area is arranged on the frame for accommodating the tires, two wheel brackets which are obliquely arranged in opposite directions are arranged in the sinking area for clamping the tire treads, and the extension surfaces of the two wheel brackets are arranged in a V shape;

the sinking area is provided with an opening at least at one of the left side and the right side of the wheel support for the tire to enter the sinking area from the opening, and the opening is provided with a movable puller for limiting the tire to shake along the wheel shaft direction in the traction process.

The utility model completely uses a mechanical structure, has simple structure and economy compared with an electric wheel holding type transfer device, can better control the clamping position, is safer and more reliable, and does not damage the tire structure of an airplane.

As a preferable technical scheme of the utility model, the distance between the two wheel brackets can be adjusted to adapt to tires of different types.

As a preferable technical scheme of the utility model, the two wheel supports are respectively a fixed wheel support and a movable wheel support, and the movable wheel support is in sliding connection with the frame.

As a more preferable technical scheme of the utility model, the movable wheel support is slidably connected with the frame through a sliding block and a guide rail, and a stop device is arranged on the movable wheel support to stop the movable wheel support from moving.

As a preferable technical scheme of the utility model, the inclination angle of the two wheel brackets is 30-60 degrees.

As a more preferable technical scheme of the utility model, the inclination angle of the two wheel brackets is 45 degrees.

As a preferable technical scheme of the utility model, the sinking area is provided with openings at the left side and the right side of the wheel support, one side of the opening is provided with a fixed puller, and the other side is provided with a movable puller. The fixed puller is fixedly connected with the frame, and the movable puller is movably connected with the frame.

As a more preferable technical scheme of the utility model, the movable puller comprises a rocker arm and a hand wheel screw rod, wherein a top plate is arranged at the end part of the hand wheel screw rod and is used for contacting with the side surface of the tire and limiting the displacement of the tire along the axle direction, one end of the rocker arm is in threaded connection with the screw rod of the hand wheel screw rod, and the rocker arm is rotatably assembled on the frame.

As a preferable technical scheme of the utility model, the tire tightening device further comprises a rope tightener, wherein two end parts of the rope tightener are respectively arranged at the top ends of the fixed wheel support and the movable wheel support so as to tighten the tire.

As a preferable technical scheme of the utility model, the utility model further comprises a jack placing frame, wherein the jack placing frame is arranged on one side of the frame for placing the jack.

As a preferable technical scheme of the utility model, the frame is also provided with a traction ring for connecting a plurality of transfer devices in series. The transfer devices are connected in series, namely, the transfer devices are connected side by side or front and back, so that the transfer devices are integrated, and the transfer devices can be pulled at the same time.

The beneficial effects are that: according to the utility model, the sinking area is arranged on the frame, the movable puller is arranged on the side surface of the sinking area, and the tire is arranged in the sinking area of the frame from the side where the movable puller is arranged, so that the frame can be used for arranging the tire into the transfer device when the tire of the landing gear is at a lower lifting height; the tire clamping device has the advantages that the tire clamping device is provided with the wheel brackets with adjustable intervals to clamp tires and adjust the clamping height of the tires, and the tire brackets can be adjusted to be suitable for tires of different types; one transfer device only supports one tire, and the tires are supported side by side or front and back through a plurality of transfer devices, so that the heights of the tires in each transfer device are adjusted, and the problem that the heights of a plurality of tires of the landing gear are inconsistent due to tire burst is avoided.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present utility model will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the utility model are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2A;

FIG. 4 is a schematic view of the frame of FIG. 1;

FIG. 5 is a schematic view of a mobile wheel support;

FIG. 6 is a schematic view of the construction of the movable puller;

fig. 7 is a schematic structural view of the fixing puller.

Reference numerals illustrate:

1. a frame; 11. a connecting plate; 12. a groove; 13. an armrest; 14. a traction ring; 15. a mooring ring; 2. a fixed wheel support; 3. a movable wheel support; 31. a lead screw; 32. a ratchet wrench; 33. reinforcing ribs; 4. a rope tightener; 5. fixing a puller; 51. a fixing frame; 52. a hand wheel; 53. a top plate; 6. a movable puller; 61. a rocker arm; 62. pressing the pressing plate tightly; 63. rotating the plunger; 7. a traction rod; 8. universal castor; 9. and a jack placing rack.

Detailed Description

The following description of the embodiments of the present utility model will be made more complete and clear to those skilled in the art by reference to the figures of the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Any number of elements in the figures are for illustration and not limitation, and any naming is used for distinction only and not for any limiting sense.

The principles and spirit of the present utility model are explained in detail below with reference to several representative embodiments thereof.

Example 1:

a transfer device for emergency towing of an aircraft as shown in fig. 1-2, comprising: the bicycle comprises a bicycle frame 1, a wheel support, a puller, a traction rod 7 and universal casters 8. The universal castor 8 is arranged below the frame 1, and the traction rod 7 is arranged at the front end of the frame 1, so that one end of the traction rod 7 is the front end of the frame 1.

The frame 1 sets up the region of sinking, is provided with two wheel supports in the region of sinking, and two wheel supports are for removing wheel support 3 and tight pulley support 2, and the relative slope setting of removing wheel support 3 and tight pulley support 2 is used for the centre gripping tire, and the extension face that removes wheel support 3 and tight pulley support 2 intersects and forms a V type.

The sinking area is provided with an opening at one side of the wheel support for the tire to enter the sinking area from the opening, the opening is also provided with a movable puller 6, and the movable puller 6 is used for limiting the tire to shake back and forth along the wheel shaft direction in the moving process and even drop. Of course, in other embodiments, the sinking area may also be provided with openings at two sides of the wheel support, and the openings at two sides may be respectively provided with a movable puller 6 to fix the left and right sides of the tire, so as to prevent the tire from shaking along the axle direction and even falling during the movement of the transfer device; the openings on two sides can also be provided with a fixed puller 5 on one side and a movable puller 6 on the other side to fix the left and right sides of the tire. The fixed puller 5 is fixedly arranged at the opening of the sinking area of the frame 1.

Example 2:

the differences from example 1 are mainly that:

as shown in fig. 4, the whole frame 1 is concave in the middle, two sides of the frame are provided with a reversed inverted U-shaped structure, two ends of the concave part in the middle are respectively provided with a fixed wheel support 2 and a movable wheel support 3 for placing and clamping an aircraft tire, a connecting plate 11 is arranged below the convex platforms on two sides of the frame for installing universal casters 8, and the universal casters 8 are mainly used for steering and supporting the transfer device. The frame 1 is arranged in an inverted shape, on one hand, in order to reduce the middle height of the frame 1, the tires can be arranged in the frame 1 at a lower lifting height, and the tires are convenient to support; on the other hand, in order to make the diameter of the installed universal castor 8 larger, the larger the diameter of the universal castor 8 is, the more labor-saving and durable, and the better can pass over obstacles and protect the ground. While the large diameter of the universal castor 8 can raise the gravity center, the gravity center of the whole device can be lowered by arranging the frame 1 in an inverted-U shape. In other embodiments, the frame 1 may be configured with a concave middle and convex sides, and the convex heights are not uniform.

The fixed wheel support 2 and the movable wheel support 3 are oppositely and obliquely arranged at two ends of a concave part in the middle of the frame 1, and the fixed wheel support 2 is fixedly connected with the frame 1. As shown in fig. 5, a guide rail is fixedly arranged below the movable wheel support 3, the guide rail is used for guiding the movable wheel support 3, a sliding block is arranged below the frame 1, the guide rail is adaptively arranged on the sliding block, the guide rail can drive the movable wheel support 3 to move along the sliding block, and then the distance between the movable wheel support 3 and the fixed wheel support 2 is adjusted to clamp tire treads of different models.

In order to strengthen the strength of the wheel support, a reinforcing rib 33 is arranged below the fixed wheel support 2 and the movable wheel support 3.

In order to stop the displacement of the movable sheave 3 at a proper position, a stopper is provided on the movable sheave 3. The stopping means comprises a lead screw 31 and a ratchet wrench 32; the guide screw 31 is threaded through the protruding portion of the frame 1, one end of the guide screw 31 is fixedly arranged at the rear end of the movable wheel support 3, and the other end of the guide screw 31 is connected with the ratchet wrench 32. The ratchet wrench 32 is a bi-directional ratchet wrench 32. The movable wheel support 3 is moved along the guide rail by shaking the ratchet wrench 32, the distance between the movable wheel support 3 and the fixed wheel support 2 is adjusted, the tire or the wheel hub of the airplane is clamped, the height of the airplane at the fault side is adjusted, the airplane is ensured to be kept at a horizontal position, and the tire or the wheel hub of different airplanes of multiple types can be adapted. In other embodiments, the stopping device may be a device such as a stopper, which can stop the moving wheel bracket 3.

In the present embodiment, the inclination of the fixed sheave bracket 2 and the moving sheave bracket 3 is 30 °; in other embodiments, the inclination may be any angle such as 35 °, 40 °, 45 °, 50 °, 60 °. When the inclination of the fixed wheel support 2 and the movable wheel support 3 is 45 degrees, the wheel support receives the minimum horizontal component force or the minimum vertical component force of the tire.

In order to prevent the tire from shaking back and forth along the wheel axis direction in the moving process, the two sides of the concave part in the middle of the frame 1 are respectively provided with a puller, and the puller is used for pushing the two sides of the tire tightly. The interval between the puller on two sides of the frame 1 is adjustable.

Example 3:

the differences from example 2 are mainly that:

in this embodiment, the slider has been set firmly to remove the wheel support 3 below, and frame 1 below is provided with the guided way, and guided way and slider adaptation installation, and the slider removes along the guided way, and then drives and remove the wheel support 3 and remove the interval between wheel support 3 and the fixed wheel support 2.

As shown in fig. 7, the fixed puller 5 comprises a fixed frame 51 and a hand wheel 52 screw, the hand wheel 52 screw comprises a hand wheel 52, a screw rod and a top plate 53, one end of the screw rod is connected with the hand wheel 52, the other end is provided with the top plate 53, and the top plate 53 is used for contacting with the side surface of the tire and limiting the displacement of the tire along the wheel axis direction. The lower end of the fixing frame 51 is fixedly connected with the frame 1, and an internal thread ring is arranged at the upper end of the fixing frame 51 and is assembled with the screw threads of the screw rod of the hand wheel 52. The fixing puller 5 is arranged in the middle of the bottom surface of the concave part of the frame 1, and in other embodiments, the fixing puller 5 can also be arranged on the side wall of the concave part of the frame 1.

As shown in fig. 6, the movable puller 6 includes a rocker arm 61 and a hand wheel 52 screw, and the arrangement of the hand wheel 52 screw is the same as that of the hand wheel 52 screw described above. One end of the rocker arm 61 is provided with an internal thread ring in threaded connection with a screw rod of the hand wheel 52, the other end of the rocker arm 61 is provided with an internal thread perforation, and the frame 1 is provided with an external thread bulge and the internal thread perforation which can be assembled in a rotating way. In order to prevent the rocker arm 61 from falling down and to make the installation simple, the projection is provided as a circular projection, and the movable puller 6 is further provided with a puller pressing plate 62 fitted in the inner hole of the circular projection. The jacking pressing plate 62 comprises an assembly column and a pressing plate, wherein the assembly column is arranged at one end of the jacking pressing plate 62 and is in fit jacking installation with the inner hole of the circular ring; the clamp plate sets up in the top and sticiss the other end of plate 62, and the clamp plate size is bigger than the assembly post, and the assembly post sets up in the clamp plate center, and the clamp plate is used for stopping rocking arm 61 to drop. The movable puller 6 is arranged in the middle of the bottom surface of the concave part of the frame 1, and in other embodiments, the movable puller 6 can also be arranged on the side wall of the concave part of the frame 1.

In order to prevent the tire from jumping in the vertical direction in the moving process, the transfer device is further provided with a rope tightener 4, and two ends of the rope tightener 4 are respectively arranged at the protruding parts at two sides of the frame 1 to tighten the tire.

Example 4:

the differences from example 3 are mainly that:

the tensioning ratchet wheel device is arranged on the rope tightener 4, hooks are arranged at two ends of the rope tightener 4, and hanging rings are arranged at the upper ends of the movable wheel support 3 and the fixed wheel support 2. The hooks on the rope tightener 4 are hooked on the hanging rings of the movable wheel support 3 and the fixed wheel support 2, and the aircraft tire or the wheel hub is fastened through the tightening ratchet device on the rope tightener 4, so that the jumping of the aircraft tire or the wheel hub in the vertical direction is prevented.

The perforation of rocking arm 61 sets up in the middle part, and rocking arm 61 one end sets up the hand wheel 52 lead screw, and the other end is provided with the through-hole, is provided with recess 12 on the frame 1, and movable puller 6 still is provided with rotatory plunger 63, and rotatory plunger 63 assembles recess 12 and through-hole together, makes rocking arm 61 fixed in the specific position.

As shown in fig. 2 and 3, the frame 1 is provided with a plurality of grooves 12, the grooves 12 are arc-shaped, and the rotary plunger 63 assembles the through holes with different grooves 12, so that the movable puller 6 is fixed at different heights to adapt to aircraft tires of different models.

In order to facilitate the placement and carrying of the jack, a jack placing rack 9 is further arranged on one side of the frame 1.

In order to facilitate manual pushing of the emergency traction transfer device, armrests 13 are also arranged on the protrusions on the two sides of the frame 1.

In order to make the frame 1 smoother in the traction process and also in order to prevent the vehicle from turning over, the traction rod 7 is arranged in the middle of the front end of the frame 1, and the traction rod 7 is arranged into an A shape, and the A-shaped opening end is connected with the front end of the frame 1. The A-shaped closed end (namely the top end) is provided with a through groove.

In order to serially connect a plurality of emergency traction transfer devices for traction, the rear end of the frame 1 is provided with a traction ring 14, the traction ring 14 is connected with a through groove at the front end of the traction rod 7 through a pin shaft, and the plurality of transfer devices are serially connected in front and back for traction. The two sides of the frame 1 are also provided with the mooring rings 15, a plurality of transfer devices are connected side by side through the connection of the mooring rings 15, and the vehicle is applicable when a plurality of tires are arranged on the landing gear; when one of the plurality of tires on the landing gear bursts, the height of the tire can be adjusted by adjusting the movable wheel support 3 of the failed tire, so that the height of the failed tire is ensured to be consistent with that of the normal tire, the aircraft tire after the burst can move on the ground, and the transfer device replaces the action of the aircraft tire to realize the traction and the dragging of the aircraft after the burst.

Working principle:

the transfer device is pulled to the vicinity of the faulty landing gear, a position suitable for lifting the faulty landing gear is selected, the jack is taken off the jack holder 9 and placed on this position (on the ground), and the faulty landing gear tyre is lifted a distance from the ground. One side of the frame 1, which is provided with a movable puller 6, is close to the outer side of the tire, a concave part of the frame 1 is pushed in from the outer side of the tire, the tire is placed on a wheel support of the frame 1, then the movable wheel support 3 is driven by shaking the bidirectional ratchet wrench 32, and the positions of the movable wheel support 3 and the fixed wheel support 2 are adjusted to clamp the tire; the movable puller 6 is then turned to the tire side, and the movable puller 6 is fixed by rotating the plunger 63. The hooks of the rope tightener 4 are assembled with the hanging rings of the movable wheel support 3 and the fixed wheel support 2, and the tightening ratchet device on the rope tightener 4 is adjusted to tighten the tire.

It will be further understood by those skilled in the art from the foregoing description of the present specification that terms such as "upper", "lower", "left", "right", "dimension", "length", and the like, which indicate an azimuth or a positional relationship, are based on the azimuth or the positional relationship shown in the drawings of the present specification, are for convenience of explanation of aspects of the present utility model and for simplicity of description only, and do not explicitly show or imply that the devices or elements involved must have the specific azimuth, be constructed and operated in the specific azimuth, and thus the azimuth or positional relationship terms mentioned above should not be interpreted or construed as limitations of aspects of the present utility model.

In addition, in the description of the present specification, the meaning of "plurality" means at least two, for example, two, three or more, etc., unless specifically defined otherwise.

Claims (9)

1. The transfer device for the emergency traction of the aircraft is provided with a frame (1) for placing the tires of the aircraft, universal casters (8) are arranged at the bottom of the frame (1), a traction rod (7) is arranged on the frame (1) to traction the frame (1), and the transfer device is characterized in that the frame (1) is provided with a sinking area for accommodating the tires, two wheel brackets which are arranged in a tilting way in opposite directions are arranged in the sinking area for clamping the tire treads, and the extension surfaces of the two wheel brackets are arranged in a V shape;

the sinking area is provided with an opening at least at one of the left side and the right side of the wheel support for the tire to enter the sinking area from the opening, and the opening is provided with a movable puller (6) for limiting the tire to shake along the wheel shaft direction in the traction process.

2. A transfer device for emergency traction of an aircraft according to claim 1, wherein the spacing between two of said receptacles is adjustable to accommodate different types of tires.

3. A transfer device for emergency traction of an aircraft according to claim 2, characterized in that the two wheel carriers are a fixed wheel carrier (2) and a mobile wheel carrier (3), respectively, the mobile wheel carrier (3) being slidably connected to the frame (1).

4. A transfer device for emergency traction of an aircraft according to claim 3, characterized in that the mobile carriage (3) is slidably connected to the frame (1) via a slide with a guide rail, and that the mobile carriage (3) is provided with stop means for stopping the movement of the mobile carriage (3).

5. A transfer device for emergency traction of an aircraft according to claim 1, wherein the angle of inclination of both said carriages is 30-60 °.

6. A transfer device for emergency traction of an aircraft according to claim 1, characterized in that the sinking area is provided with openings on both the left and right sides of the wheel support, one side of the opening being provided with a fixed puller (5) and the other side being provided with a movable puller (6).

7. A transfer device for emergency traction of an aircraft according to claim 3 or 4, characterized in that it further comprises a rope tightener (4), the two ends of said rope tightener (4) being respectively arranged on the top ends of said fixed (2) and mobile (3) wheel brackets for tightening the tyre.

8. A transfer device for emergency traction of an aircraft according to any of claims 1-6, further comprising a jack-rest (9), said jack-rest (9) being arranged on one side of the frame (1) for placing a jack.

9. A transfer device for emergency traction of an aircraft according to any one of claims 1-6, characterized in that the frame (1) is further provided with a traction ring (14) for a series connection of a plurality of transfer devices.