CN109625307B

CN109625307B - Aircraft landing gear traction device

Info

Publication number: CN109625307B
Application number: CN201910057554.8A
Authority: CN
Inventors: 宋伟超; 姚鑫; 盛明虎; 刘鑫伟; 杨柳
Original assignee: Wuhu Zhongke Aircraft Manufacturing Co ltd
Current assignee: Wuhu Zhongke Aircraft Manufacturing Co ltd
Priority date: 2019-01-22
Filing date: 2019-01-22
Publication date: 2022-03-18
Anticipated expiration: 2039-01-22
Also published as: CN109625307A

Abstract

The invention discloses an aircraft undercarriage traction device, which relates to an aircraft traction device, and comprises a traction mechanism and a positioning mechanism arranged on the traction mechanism, wherein the traction mechanism consists of a U-shaped bracket, a driving trolley with a built-in driving system and an operating rod thereof, the U-shaped bracket is tightly fixed on the outer wall of the driving trolley, the operating rod is arranged at the head part of the driving trolley and is obliquely distributed with the driving trolley, a hanging rod is arranged on the outer wall of the central position of the U-shaped bracket, the positioning mechanism consists of a U-shaped positioning component and a connecting rod arranged on the U-shaped positioning component, the end part of the connecting rod is rotatably connected with the hanging rod, and the connecting part of the connecting rod and the hanging rod is provided with an elastic limiting component. The use is more convenient.

Description

Aircraft landing gear traction device

Technical Field

The invention relates to an aircraft traction device, in particular to an aircraft landing gear traction device.

Background art:

with the release of national policies regarding low-altitude areas, civil airport transportation becomes very busy. For some small aircraft, when the small aircraft operates on the ground, the tractor needs to be used for towing or pushing the aircraft. And the towing vehicle is connected with the airplane through a towing rod, so that the towing vehicle can tow or push the airplane. In order to drag the airplane to a specified area more quickly and safely to improve the utilization rate of an airport, a drag bar which is simpler and more convenient to operate and safer and more reliable is used for carrying out the drag operation on the airplane, so that the efficient use of the airplane apron can be met.

Disclosure of Invention

The invention aims to provide an aircraft landing gear traction device to solve the defects caused by the prior art.

A traction device of an aircraft landing gear comprises a traction mechanism and a positioning mechanism arranged on the traction mechanism, wherein the traction mechanism comprises a U-shaped support, a driving trolley with a built-in driving system and an operating rod thereof, the U-shaped support is fixedly arranged on the outer wall of the driving trolley, the operating rod is arranged at the head part of the driving trolley and is obliquely distributed with the driving trolley, a hanging rod is arranged on the outer wall of the central position of the U-shaped support, the positioning mechanism comprises a U-shaped positioning component and a connecting rod arranged on the U-shaped positioning component, the end part of the connecting rod is rotationally connected with the hanging rod, an elastic limiting component is arranged at the connecting part of the connecting rod and the hanging rod, the U-shaped positioning component comprises two L-shaped plates and a positioning component arranged at the end part of the plates, the two plates are respectively a movable plate and a fixed plate, and the movable plate and the fixed plate are rotationally connected to form a U-shaped structure, the positioning assembly is arranged at the end part of the plate, the adjusting and positioning assembly is arranged on the T-shaped mounting assembly, and the two adjusting and positioning assemblies are arranged oppositely and correspond to two positioning holes distributed in a mirror image mode on the aircraft landing gear.

Preferably, the outer wall of the operating rod is provided with two link mechanisms in a mirror image manner, the end parts of the link mechanisms are in running fit with the outer wall of the operating rod, the outer wall of the operating rod is provided with two limiting grooves, each link mechanism is provided with a limiting component, the limiting components are in one-to-one correspondence with the limiting grooves, each limiting component is connected with a brake cable, each elastic limiting component comprises a U-shaped plate and an elastic component arranged in the U-shaped plate, the end part of the hanging rod is provided with an integrally formed upright post, the upright post is provided with a through groove which is communicated up and down, the lower end of the through groove is communicated with the lower end face of the hanging rod, the end part of the connecting rod is provided with an assembly hole, the upright post penetrates through the assembly hole and is in running fit with the assembly hole, the U-shaped plate is arranged under the connecting rod through the elastic component, and is arranged under the upright post, and the end part of one of the brake cables penetrates through the upright post, the elastic limiting component consists of two elastic components and connecting columns, one of the two connecting columns is arranged on the movable plate, the other connecting column is arranged on the fixed plate, the two elastic components are arranged between the two connecting columns, and the end part of the other brake cable is connected with the connecting column on the movable plate.

Preferably, the tip of movable plate and fixed plate all is equipped with the locating component mounting groove, and T type installation component can dismantle with the locating component mounting groove and be connected, is equipped with the thread groove that link up on the T type installation component, adjust locating component and comprise screw rod and the knob of locating the screw rod tip, screw rod and thread groove screw-thread fit, and the tip of screw rod is equipped with a locating piece, and the embedded footstep bearing that has in the locating piece, the tip of screw rod and footstep bearing's inner circle interference fit.

Preferably, the limiting assembly is in threaded connection with the connecting rod mechanism, and the end part of the limiting assembly can extend into the limiting groove.

Preferably, clamping pieces are arranged on the U-shaped bracket and the connecting rod, and the brake cable is clamped in the clamping pieces.

Preferably, the main body of the link mechanism is a Z-shaped structure.

The invention has the advantages that: when the invention is used and needs to pull an airplane, the connecting part of the connecting rod and the hanging rod is manually adjusted firstly to ensure that the connecting rod and the hanging rod are positioned on the same horizontal straight line, then the second connecting rod mechanism is rotated, the second connecting rod mechanism pulls the second brake cable to ensure that the first elastic component is compressed, the U-shaped plate moves upwards to ensure that the U-shaped plate limits the connecting part of the connecting rod and the hanging rod, the second limiting component is rotated to ensure that the end part of the second limiting component enters the second limiting groove to prevent the U-shaped bracket from rotating around the connecting rod, so as to be convenient for subsequently moving the positioning mechanism, then the driving trolley is used for driving the positioning mechanism to move to the position of the undercarriage of the airplane, the driving trolley is firstly used for enabling the adjusting and limiting components at the end parts of the movable plate and the fixed plate to be respectively positioned at two sides of the positioning hole on the undercarriage of the airplane, the adjusting and positioning component at the end part of the fixed plate is rotated to ensure that the positioning block is tightly contacted with the positioning hole on one side of the undercarriage of the airplane, then rotate link mechanism one, link mechanism one drives brake cable one and moves, elastic component two receives the compression, make the movable plate rotate round the pivot, make the side of movable plate and the side of deciding the board be in parallel state, rotate spacing subassembly one on the link mechanism this moment, make the tip of spacing subassembly one stretch into to spacing groove one, then rotate the regulation locating component on the movable plate, make locating piece and the locating hole in close contact with of the opposite side on the aircraft undercarriage, accomplish the location to the undercarriage, later the spacing subassembly two of antiport, make the tip of spacing subassembly two break away from spacing groove two, under the reset action of elastic component one, U template downstream, spacing to the position of being connected of peg and connecting rod is relieved, then utilize the drive dolly pulling aircraft motion.

The positioning hole locating device is simple in structure, low in cost, capable of accurately locating the positioning hole in the undercarriage of the airplane when the airplane is dragged, simple to operate and convenient to use.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a pictorial view of the house at A of FIG. 1;

FIG. 3 is a partial schematic view of FIG. 1;

fig. 4 is a sectional view of a connection portion of the connection rod and the hanger rod.

Wherein: 1-a fixed plate, 2-a movable plate, 3-a first connecting column, 4-a second elastic component, 5-a second connecting column, 6-a mounting block at one end of a brake cable, 7-a first brake cable, 8-a U-shaped bracket, 9-a clamping piece, 10-a driving trolley, 11-an operating rod, 12-a first limiting component, 13-a first link mechanism, 14-a first limiting groove, 15-a rotating shaft, 16-a connecting rod, 17-a connecting block at the two ends of the brake cable, 18-a U-shaped plate, 19-a second brake cable, 20-a hanging rod, 21-a second link mechanism, 22-a second limiting component, 23-a second limiting groove, an assembling section of a 24-T-shaped mounting component, 25-a positioning block, 26-an assembling section of an adjusting and positioning component, 27-a screw rod and 28-a connecting seat, 29-upright post, 30-elastic component one.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, an aircraft landing gear traction device comprises a traction mechanism and a positioning mechanism arranged on the traction mechanism, wherein the traction mechanism comprises a U-shaped support 8, a driving trolley 10 with a built-in driving system and an operating rod 11 thereof, the U-shaped support 8 is tightly fixed on the outer wall of the driving trolley 10, the operating rod 11 is arranged at the head part of the driving trolley 10 and is obliquely distributed with the driving trolley 10, an included angle between the operating rod 11 and the driving trolley is 30-45 degrees, a hanging rod 20 is arranged on the outer wall of the central position of the U-shaped support 8, the positioning mechanism comprises a U-shaped positioning component and a connecting rod 16 arranged on the U-shaped positioning component, the end part of the connecting rod 16 is rotatably connected with the hanging rod 20, an elastic limiting component is arranged at the connecting part of the connecting rod 16 and the hanging rod 20, the U-shaped positioning component comprises two plate members with L-shaped main bodies and a positioning component arranged at the end part of the plate members, two plates are respectively movable plate 2 and decide board 1, and movable plate 2 rotates through pivot 15 of locating on roof 1 with deciding board 1 and connects to form U type structure, and carry on spacingly, every through elastic component locating component comprises T type installation component and regulation locating component, and T type installation component installs the tip at the plate, adjusts locating component and installs on T type installation component, and two are adjusted locating component and are set up in opposite directions to it is corresponding with the locating hole that two mirror images on the aircraft undercarriage distribute.

In this embodiment, the outer wall of the operating rod 11 is provided with two link mechanisms, namely a first link mechanism 13 and a second link mechanism 21, in a mirror image manner, the end portions of the link mechanisms are rotatably matched with the outer wall of the operating rod 11, the outer wall of the operating rod 11 is provided with two limiting grooves, namely a first limiting groove 14 and a second limiting groove 23, each link mechanism is provided with a first limiting component 12 and a second limiting component 22, the first limiting component 12 is mounted on the first link mechanism 13, the second limiting component 22 is mounted on the second link mechanism 21, the first limiting component 12 corresponds to the first limiting groove 14, the second limiting component 22 corresponds to the second limiting groove 23, each limiting component is connected with a brake cable, namely a first brake cable 7 and a second brake cable 19, and is composed of a U-shaped plate 18 and a first elastic component 30 mounted in the U-shaped plate 18, the end part of the hanging rod 20 is provided with an integrally formed upright post 29, the upright post 29 is provided with a through groove which is communicated up and down, the lower end of the through groove is communicated with the lower end face of the hanging rod 20, the end part of the connecting rod 16 is provided with an integrally formed connecting seat 28, the end part of the connecting seat 28 is provided with an assembling hole, the upright post 29 penetrates through the assembling hole and is in running fit with the assembling hole, the U-shaped plate 18 is arranged under the connecting seat 28 at the end part of the connecting rod 16 and is positioned under the upright post 29 through an elastic component I4, the end part of the connecting rod is also provided with an integrally formed brake cable II end part connecting block 17 for threading a brake cable II 19, one end of the brake cable II 19 is connected with a connecting rod mechanism II 21, the other end of the brake cable II sequentially penetrates through the brake cable II end part connecting block 17 and the upright post 29 and is connected with the central position of the bottom part of the U-shaped plate 18, the elastic limiting component is composed of an elastic component II and a connecting post, the connecting columns are provided with two connecting columns, namely a first connecting column 3 and a second connecting column 5, the first connecting column 3 is arranged on the fixed plate 1, the second connecting column 5 is arranged on the movable plate 2, the second elastic component 4 is arranged between the two connecting columns, the end part of the first brake cable is connected with the second connecting column, a brake cable end part mounting block 6 is arranged on the outer side of the fixed plate 1, and the end part of the first brake cable 7 penetrates through the brake cable end part mounting block 6 and is connected with the second connecting column 5.

In this embodiment, the tip of movable plate 2 and fixed plate 1 all is equipped with the locating component mounting groove, and T type installation component can dismantle with the locating component mounting groove and be connected, and T type installation component's main part comprises the assembly section 24 of T type installation component and the assembly section 26 of adjusting the locating component, and the two integrated into one piece, and T type installation component's assembly section 24 can dismantle with movable plate 2 and fixed plate 1 and be connected, is equipped with the thread groove on adjusting the assembly section 26 of locating component, adjust the locating component and comprise screw rod 27 and the knob of locating screw rod 27 tip, screw rod 27 and thread groove screw-thread fit, and the tip of screw rod 27 is equipped with a locating piece 25, and the embedded footstep bearing (not drawn in the drawing) that has in locating piece 25, the tip of screw rod 27 and the inner circle interference fit of footstep bearing.

In this embodiment, the limiting component is in threaded connection with the link mechanism, and the end portion can extend into the limiting groove, the first limiting component 12 is in threaded fit with the first link mechanism 13 and can extend into the first limiting groove 14, and the second limiting component 22 is in threaded connection with the second link mechanism 21 and can extend into the second limiting groove 23.

In this embodiment, the U-shaped bracket 8 and the connecting rod 16 are both provided with a clamping member 9, and the first brake cable 7 and the second brake cable 19 are both clamped in the clamping member 9 and used for positioning the first brake cable 7 and the second brake cable 19.

In this embodiment, the main bodies of the first link mechanism 13 and the second link mechanism 21 are Z-shaped structures, which facilitates the manual rotation of the first link mechanism 13 and the second link mechanism 21.

When the aircraft towing device is used and when the aircraft needs to be towed, the connecting part of the connecting rod 16 and the hanging rod 20 is manually adjusted firstly, so that the connecting rod 16 and the hanging rod 20 are positioned on the same horizontal straight line, then the second connecting rod mechanism 21 is rotated, the second connecting rod mechanism 21 pulls the second brake cable 19, the first elastic component 30 is compressed, the U-shaped plate 18 moves upwards, the connecting part of the connecting rod 16 and the hanging rod 20 is limited by the U-shaped plate 18, the second limiting component 22 is rotated to enable the end part of the second limiting component to enter the second limiting groove 23, the U-shaped support 8 is prevented from rotating around the connecting rod 16, the subsequent positioning mechanism is conveniently moved, and then the aircraft towing device is beneficial to moving the positioning mechanism

The positioning mechanism is driven to move to the position of an undercarriage of an airplane by a driving trolley 10, firstly, the driving trolley 10 is utilized to enable adjusting limiting components at the end parts of a movable plate 2 and a fixed plate 1 to be respectively positioned at two sides of a positioning hole on the undercarriage of the airplane, the adjusting positioning components at the end part of the fixed plate 1 are rotated to enable a positioning block 25 to be in close contact with the positioning hole at one side of the undercarriage of the airplane, then, a first connecting rod mechanism 13 is rotated, the first connecting rod mechanism 13 drives a first brake cable 7 to move, an elastic component 4 is compressed to enable the movable plate 2 to rotate around a rotating shaft 15, the side edge of the movable plate 2 is enabled to be in a parallel state with the side edge of the fixed plate 1, at the moment, a first limiting component 12 on the first connecting rod mechanism 13 is rotated to enable the end part of the first limiting component 12 to extend into a first limiting groove 14, then, the adjusting positioning components on the movable plate 2 are rotated to enable the positioning block 25 to be in close contact with the positioning hole at the other side of the undercarriage of the airplane, and after the positioning of the landing gear is finished, the second limiting assembly 22 is rotated reversely, so that the end part of the second limiting assembly 22 is separated from the second limiting groove 23, the U-shaped plate 18 moves downwards under the reset action of the first elastic assembly 30, the limiting of the connecting part of the hanging rod 20 and the connecting rod 16 is released, and then the aircraft is pulled to move by using the driving trolley 10.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. A traction device of an aircraft landing gear comprises a traction mechanism and a positioning mechanism arranged on the traction mechanism, and is characterized in that the traction device consists of a U-shaped support (8), a driving trolley (10) with a built-in driving system and an operating rod (11) of the driving trolley, the U-shaped support (8) is tightly fixed on the outer wall of the driving trolley (10), the operating rod (11) is arranged at the head part of the driving trolley (10) and obliquely distributed with the driving trolley (10), a hanging rod (20) is arranged on the outer wall of the central position of the U-shaped support (8), the positioning mechanism consists of a U-shaped positioning component and a connecting rod (16) arranged on the U-shaped positioning component, the end part of the connecting rod (16) is rotatably connected with the hanging rod (20), an elastic limiting component is arranged at the connecting part of the connecting rod (16) and the hanging rod (20), the U-shaped positioning component consists of two L-shaped plates and a positioning component arranged at the end part of the two L-shaped plates, the two plates are respectively a movable plate (2) and a fixed plate (1), the movable plate (2) and the fixed plate (1) are rotatably connected to form a U-shaped structure and are limited by elastic components, each positioning component consists of a T-shaped mounting component and an adjusting and positioning component, the T-shaped mounting components are mounted at the end parts of the plates, the adjusting and positioning components are mounted on the T-shaped mounting components, and the two adjusting and positioning components are oppositely arranged and correspond to two mirror-image-distributed positioning holes on an aircraft landing gear;

the device is characterized in that two link mechanisms are arranged on the outer wall of the operating rod (11) in a mirror image mode, the end portions of the link mechanisms are in running fit with the outer wall of the operating rod, two limiting grooves are formed in the outer wall of the operating rod (11), each link mechanism is provided with a limiting assembly, the limiting assemblies correspond to the limiting grooves one by one, each limiting assembly is connected with a brake cable, each elastic limiting assembly comprises a U-shaped plate (18) and an elastic assembly I (30) installed in the U-shaped plate (18), the end portion of the hanging rod (20) is provided with an integrally formed stand column (29), the stand column (29) is provided with a through groove which is communicated with the upper portion and the lower portion of the through groove, the lower end of the through groove is communicated with the lower end face of the hanging rod (20), the end portion of the connecting rod (16) is provided with an assembling hole, the stand column (29) penetrates through the assembling hole and is in running fit with the assembling hole, and the U-shaped plate (18) is installed under the connecting rod (16) through the elastic assembly I (30), the elastic limiting component is composed of two elastic components (4) and connecting columns, the two connecting columns are arranged, one connecting column is arranged on the movable plate (2), the other connecting column is arranged on the fixed plate (1), the two elastic components (4) are arranged between the two connecting columns, and the end part of the other brake cable is connected with the connecting column on the movable plate (2); the end parts of the movable plate (2) and the fixed plate (1) are respectively provided with a positioning component mounting groove, the T-shaped mounting component is detachably connected with the positioning component mounting grooves, a through thread groove is formed in the T-shaped mounting component, the adjusting and positioning component comprises a screw rod (27) and a knob arranged at the end part of the screw rod (27), the screw rod (27) is in threaded fit with the thread groove, a positioning block (25) is arranged at the end part of the screw rod (27), a thrust bearing is embedded in the positioning block (25), and the end part of the screw rod (27) is in interference fit with an inner ring of the thrust bearing; the limiting assembly is in threaded connection with the connecting rod mechanism, and the end part of the limiting assembly can extend into the limiting groove; clamping pieces (9) are arranged on the U-shaped bracket (8) and the connecting rod (16), and the brake cable is clamped in the clamping pieces (9); the main body of the link mechanism is of a Z-shaped structure.