阅读说明：本技术 一种飞机双舵液压转向抱夹式电动新型牵引装置 (Novel electric traction device of double-rudder hydraulic steering clamp type for airplane ) 是由 侯思建 周世龙 詹波宇 陈宇峰 刘伟 余柱成 李力 李涛 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种飞机双舵液压转向抱夹式电动新型牵引装置,包括车身系统、双向双舵操纵系统、驱动系统、制动系统、转向系统、转向机构、升降机构和抱紧机构。本发明的有益效果是：以清洁可再生新能源的蓄电池组为动力源,同时采用以双舵双向操作系统、液压抱夹系统、单油缸起升加前倾托举系统、带有液压转向强制同步功能的双后轮转向系统为技术核心的设计,在提升安全系数、保证牵引效率不变的情况下,成功实现了飞机牵引装置的小型化、轻量化、简单化,由于采取了液压转向强制同步功能的双后轮转向系统,使该牵引装置空载转弯半径和满载转弯半径均是同类产品中最小的,在狭窄空间内对飞机的牵引成为了现实。(The invention discloses a novel clamping type electric traction device for double-rudder hydraulic steering of an airplane, which comprises a body system, a bidirectional double-rudder operating system, a driving system, a braking system, a steering mechanism, a lifting mechanism and a clamping mechanism. The invention has the beneficial effects that: the storage battery pack with clean renewable new energy is used as a power source, and meanwhile, a design taking a double-rudder bidirectional operating system, a hydraulic clamping system, a single-oil-cylinder lifting and forward-tilting lifting system and a double-rear-wheel steering system with a hydraulic steering forced synchronization function as a technical core is adopted, so that the miniaturization, the light weight and the simplification of the aircraft traction device are successfully realized under the conditions of improving the safety coefficient and ensuring the unchanged traction efficiency.)

1. The utility model provides an electronic novel draw gear of formula is embraced and pressed from both sides to aircraft double rudder hydraulic pressure steering which characterized in that: the device comprises a vehicle body system (1), a bidirectional double-rudder control system (2), a driving system (3), a braking system (4), a steering system (5), a steering mechanism (6), a lifting mechanism (7) and a holding mechanism (8); the automobile body system (1) comprises a seat (1-1), an instrument frame (1-2) and a frame (1-3), the seat (1-1) is arranged at the tail end of the frame (1-3), the instrument frame (1-2) is arranged in front of the seat (1-1), the frame (1-3) is of a frame structure, the bidirectional double-rudder operating system (2) comprises a forward operating platform (2-1) and a reverse operating platform (2-2), the forward operating platform (2-1) and the reverse operating platform (2-2) are arranged in a left-right mode, and the driving system (3) comprises a left hub nut (3-1), a rear axle half shaft (3-2), a first bolt (3-3), a bearing end cover (3-4), a centripetal bearing shaft (3-5), The gear box comprises a first half shaft oil seal (3-6), an oil seal bush (3-7), a shaft elastic check ring (3-8), a left half shaft sleeve and a flange plate (3-9), bolts and a bridge shell flange plate (3-10), a gear box with a reduction box (3-11), an O-shaped sealing ring (3-12), a second half shaft oil seal (3-13), a right half shaft sleeve and a flange plate (3-14), a right hub nut (3-15), hub bolts (3-16), a reduction box shell (3-17) and a differential (3-18), wherein the left hub nut (3-1) is arranged on a hub at the left end of a driving system (3), one side of a rear axle half shaft (3-2) is connected with the left hub, and the other side of the rear axle half shaft (3-2) is connected with a bearing end cover (3-4) through the first bolt (3-3), the bearing end cover (3-4) is clamped at the outer side of the radial bearing shaft (3-5), the first half shaft oil seal (3-6) is arranged at the left side inside the radial bearing shaft (3-5), the outer side of the first half shaft oil seal (3-6) is wrapped with an oil seal bush (3-7), the elastic retainer ring (3-8) for the shaft is arranged at the shaft end of the radial bearing shaft (3-5), the left half shaft sleeve and the flange plate (3-9) are arranged at the left side of the gearbox with the reduction gearbox (3-11) of the gearbox, the O-shaped sealing ring (3-12) is arranged below the bolt and the flange plate (3-10) of the axle housing, the second half shaft oil seal (3-13) is arranged inside the right side radial bearing shaft (3-5), the right half shaft sleeve and the flange plate (3-14) are connected at the right side of the gearbox with the reduction gearbox (3-11) of the gearbox, the right wheel hub nut (3-15) is connected with a wheel hub bolt (3-16) and installed on a wheel hub at the right end, a differential mechanism (3-18) is arranged in the reduction gearbox shell (3-17), the brake system (4) comprises an oil storage tank (4-1), a master cylinder (4-2), a master cylinder support (4-3), a return spring (4-4), a brake pedal (4-5), a push rod (4-6), a protective cover (4-7), an elastic check ring (4-8), a piston (4-9), an O-shaped ring (4-10), an oil inlet pipe joint (4-11), a first dustproof plug (4-12), a cylinder body (4-13), a valve sealing ring (4-14), a sealing cone (4-15), a second dustproof plug (4-16), The brake system comprises a hand brake (4-17), a hand brake switch (4-18), a support (4-19) and an inhaul cable (4-20), wherein an oil storage tank (4-1), a master cylinder (4-2), a master cylinder support (4-3), a return spring (4-4) and a brake pedal (4-5) form a brake pedal structure of the brake system (4), the oil storage tank (4-1) is connected with one end of the master cylinder (4-2) through a connecting pipeline, the master cylinder (4-2) is installed on the master cylinder support (4-3) through a connecting bolt, the brake pedal (4-5) is connected with the other end of the master cylinder (4-2), and the return spring (4-4) is arranged on the brake pedal (4-5), the brake master cylinder (4-2) of the brake system (4) is composed of a push rod (4-6), a protective cover (4-7), an elastic check ring (4-8), a piston (4-9), an O-shaped ring (4-10), an oil inlet pipe joint (4-11), a first dustproof plug (4-12), a cylinder body (4-13), a valve sealing ring (4-14), a sealing cone (4-15) and a second dustproof plug (4-16), one end of the push rod (4-6) is inserted into the cylinder body (4-13), the protective cover (4-7) is arranged at the connection position of the push rod (4-6) and the outer side of the cylinder body (4-13), the elastic check ring (4-8) is arranged at the connection position of the push rod (4-6) and the inner side of the cylinder body (4-13), the piston (4-9) is arranged at the top end of a push rod (4-6) positioned in a cylinder body (4-13), the O-shaped ring (4-10) is clamped between an oil inlet pipe joint (4-11) and the cylinder body (4-13), the first dustproof plug (4-12) is arranged at the top end of the oil inlet pipe joint (4-11), the sealing cone (4-15) is positioned at the other end of the cylinder body (4-13), the sealing cone (4-15) is connected with the piston (4-9) through a return spring, a valve sealing ring (4-14) is arranged at the joint of the sealing cone (4-15) and the return spring, the second dustproof plug (4-16) is arranged below the sealing cone (4-15), and the hand brake (4-17), the hand brake switch (4-18) and the valve sealing ring (4-14) are arranged at the joint of the sealing cone (4-15) and the, The parking brake control device of the brake system (4) is composed of supports (4-19) and inhaul cables (4-20), the hand brakes (4-17) are of a ratchet type, the hand brakes (4-17) are rotatably connected to the supports (4-19), hand brake switches (4-18) are arranged between the hand brakes (4-17) and the supports (4-19), the inhaul cables (4-20) are connected to the lower portions of the supports (4-19), the steering system (5) comprises a steering wheel (5-1), a steering column (5-2), a combined instrument support (5-3), a universal joint (5-4), a first connecting shaft (5-5) and a hydraulic steering gear (5-6), the steering wheel (5-1) is installed at the top end of the steering column assembly (5-2), the steering column assembly (5-2) is provided with a combined instrument support (5-3), the universal joint (5-4) is connected between the steering column assembly (5-2) and the first connecting shaft (5-5), the bottom end of the first connecting shaft (5-5) is provided with a hydraulic steering gear (5-6), the steering mechanism (6) comprises a steering support (6-1), a hub and a tire (6-2), a telescopic oil cylinder (6-3), a rack (6-4), a gear connecting rod (6-5) and a rotary bearing (6-6), the hub and the tire (6-2) are installed below the steering support (6-1), the rotary bearing (6-6) is arranged above the steering support (6-1), one end of the telescopic oil cylinder (6-3) is connected with the steering support (6-1), the other end of the telescopic oil cylinder (6-3) is provided with a rack (6-4), the gear connecting rod (6-5) is connected with the rack (6-4) in an occlusion manner by being placed on the rack (6-4), the lifting mechanism (7) comprises an upper cover plate (7-1), an outer frame (7-2), a lifting support (7-3), a lifting oil cylinder (7-4) and an adjustable pull rod (7-5), the upper cover plate (7-1) is installed above the outer frame (7-2) through an outer hexagonal screw, the lifting support (7-3) is arranged on the inner side of the outer frame (7-2), the lower part of the lifting support (7-3) is connected with the lifting oil cylinder (7-4) through an inner hexagonal screw, the adjustable pull rod (7-5) is installed below the lifting oil cylinder (7-4), the clasping mechanism (8) comprises a fixed support (8-1), a rotary connecting lug (8-2), a bearing connecting plate (8-3), a third bearing (8-4), a second connecting shaft (8-5), a fourth bearing (8-6), a clasping roller (8-7), a limiting sleeve (8-8), a limiting support (8-9), a guide rail protective sleeve (8-10), an oil cylinder fixing piece (8-11), a clasping oil cylinder (8-12) and a joint bearing (8-13), wherein the clasping oil cylinder (8-12) is installed on the fixed support (8-1), the clasping oil cylinder (8-12) is fixed through the oil cylinder fixing piece (8-11), the rotary connecting lug (8-2) is connected to the front end of the fixed support (8-1), the rotary connecting lug (8-2) is connected with the bearing connecting plate (8-3) through a third bearing (8-4), the upper end and the lower end of the bearing connecting plate (8-3) are connected with one end of a second connecting shaft (8-5), clamping rollers (8-7) are sleeved on the second connecting shaft (8-5), fourth bearings (8-6) are respectively installed at the other end of the second connecting shaft (8-5), limiting sleeves (8-8) are sleeved on limiting supports (8-9), guide rail protective sleeves (8-10) are arranged on the surfaces of the limiting supports (8-9), and joint bearings (8-13) are connected between the bearing connecting plate (8-3) and clamping oil cylinders (8-12).

2. The novel electric clamping type traction device for the double-rudder hydraulic steering of the airplane according to claim 1 is characterized in that: a forward control console (2-1) and a reverse control console (2-2) in the bidirectional double-rudder control system (2) share a set of hydraulic system.

3. The novel electric clamping type traction device for the double-rudder hydraulic steering of the airplane according to claim 1 is characterized in that: the wheel hub and the tire (6-2) are respectively arranged on two sides of the frame (1-3), and the wheel hub and the tire (6-2) are independently arranged.

4. The novel electric clamping type traction device for the double-rudder hydraulic steering of the airplane according to claim 1 is characterized in that: the telescopic oil cylinder (6-3) is connected with the gear connecting rod (6-5) through the meshing of the rack (6-4) to drive the hub and the tire (6-2) below the steering support (6-1) to rotate in the same direction.

5. The novel electric clamping type traction device for the double-rudder hydraulic steering of the airplane according to claim 1 is characterized in that: the clamping rollers (8-7) are symmetrically arranged concave limiting fixed wheels, and the clamping rollers (8-7) are connected in a way of rotating in opposite directions or in reverse directions through clamping oil cylinders (8-12).

6. The novel electric clamping type traction device for the double-rudder hydraulic steering of the airplane according to claim 1 is characterized in that: the lifting oil cylinder (7-4) drives the lifting support (7-3) to tilt forwards and lift in the outer frame (7-2) through the adjustable pull rod (7-5).

7. The novel electric clamping type traction device for the double-rudder hydraulic steering of the airplane according to claim 1 is characterized in that: the driving system (3) takes electric energy as driving energy.

Technical Field

The invention relates to a traction device, in particular to a novel electric double-rudder hydraulic steering clamp type traction device for an airplane, and belongs to the technical field of electric cooling devices.

Background

With the development of human civilization, the aircraft is familiar to the masses, tens of thousands of aircraft are spread all over the world, the safe flight of the aircraft depends on the strict ground service guarantee work of the aircraft, and the movement of the aircraft needs to be towed by an aircraft towing device in the process.

The current aircraft traction devices include the following types:

hand-held type draw gear: the simple mechanical traction mechanism does not comprise systems such as hydraulic transmission, electrical control, single chip microcomputer control and the like, traction is mainly carried out by utilizing the self force of a hand-held person, the efficiency is low, the consumed time is long, multiple persons are generally required to push the airplane in a matching manner, the person is likely to slip down carelessly to be injured or rolled by the airplane wheel during the traction process due to wet and slippery ground, and great potential safety hazards exist;

small-size fuel auxiliary traction device: the small fuel engine is used as a power source, is mostly in a handheld operation mode, has a complicated mechanical mechanism, needs to be improved in stability in the traction process, has the problems of small size and insufficient traction stability, and is high in working noise and poor in traction environment in the traction process;

large-scale fuel draw gear: use the fuel oil machine as the power supply, possess more complicated control system and mechanism, generally need the operation of special-purpose personnel, damage back maintenance cycle length, the low-usage easily receives the guarantee environmental restriction, if use in places such as island and aircraft carrier that fuel oil reserves inadequately will aggravate the degree of difficulty of logistics support, the aircraft will be not enough along with the guarantee flexibility ratio.

Disclosure of Invention

The invention aims to solve the problems and provide a novel electric clamping type double-rudder hydraulic steering traction device for an airplane.

The invention realizes the purpose through the following technical scheme: a novel holding-clamping type electric traction device for double-rudder hydraulic steering of an airplane comprises a body system, a bidirectional double-rudder operating system, a driving system, a braking system, a steering mechanism, a lifting mechanism and a holding mechanism; wherein, the automobile body system comprises a seat, an instrument frame and a frame, the seat is arranged at the tail end of the frame, the instrument frame is arranged in front of the seat, the frame is in a frame structure, the bidirectional double-rudder operating system comprises a forward operating board and a reverse operating board, the forward operating board and the reverse operating board are arranged in a left-right direction, the driving system comprises a left hub nut, a rear axle half shaft, a first bolt, a bearing end cover, a radial bearing shaft, a first axle oil seal, an oil seal bush, an elastic collar for a shaft, a left axle sleeve pipe and a flange plate, a bolt, an axle housing flange plate, a gear box with a reduction box, an O-shaped seal ring, a second axle oil seal, a right axle sleeve pipe and a flange plate, a right hub nut, a hub bolt, a reduction box shell and a differential mechanism, the left hub nut is arranged on a hub at the left end of the driving system, one side of the half shaft of the, the other side of the rear axle half shaft is connected with a bearing end cover through a first bolt, the bearing end cover is clamped and placed on the outer side of the radial bearing shaft, a first half shaft oil seal is arranged inside the radial bearing shaft on the left side, an oil seal bushing is wrapped on the outer side of the first half shaft oil seal, a shaft elastic check ring is arranged at the shaft end of the radial bearing shaft, a left half shaft sleeve and a flange are arranged on the left side of the gearbox with a reduction gearbox, an O-shaped seal ring is arranged below the bolt and the axle housing flange, a second half shaft oil seal is arranged inside the radial bearing shaft on the right side, a right half shaft sleeve and the flange are connected to the right side of the gearbox with the reduction gearbox, a right hub nut is connected with a hub bolt and mounted on a hub on the right end, a differential is arranged in the reduction gearbox shell, and the braking system comprises an oil storage tank, a brake master, The brake system comprises a return spring, a brake pedal, a push rod, a protective cover, an elastic check ring, a piston, an O-shaped ring, an oil inlet pipe joint, a first dustproof plug, a cylinder body, a valve sealing ring, a sealing cone, a second dustproof plug, a hand brake switch, a support and an inhaul cable, wherein an oil storage tank, a master brake pump support, a return spring and the brake pedal form a brake pedal structure of the brake system, the oil storage tank is connected with one end of the master brake pump through a connecting pipeline, the master brake pump is installed on the master brake pump support through a connecting bolt, the brake pedal is connected with the other end of the master brake pump, the return spring is arranged on the brake pedal, and the push rod, the protective cover, the elastic check ring, the piston, the O-shaped ring, the oil inlet pipe joint, the first dustproof plug, the cylinder body, the valve sealing ring, one end of the push rod is inserted into the cylinder body, a protective cover is arranged at the joint of the outer side of the push rod and the cylinder body, an elastic check ring is arranged at the joint of the inner side of the push rod and the cylinder body, the piston is arranged at the top end of the push rod positioned in the cylinder body, the O-shaped ring is clamped between the oil inlet pipe joint and the cylinder body, the first dustproof plug is arranged at the top end of the oil inlet pipe joint, the sealing cone is positioned at the other end of the cylinder body and is connected with the piston through a return spring, a valve sealing ring is arranged at the joint of the sealing cone and the return spring, the second dustproof plug is arranged below the sealing cone, the hand brake switch, the bracket and the inhaul cable form a parking brake operating device of a brake system, the hand brake is in a ratchet type, the hand brake is rotatably connected to the bracket, and the, the steering system comprises a steering wheel, a steering column, a combined instrument support, a universal joint, a first connecting shaft and a hydraulic steering gear, the steering wheel is mounted at the top end of a steering column assembly, the combined instrument support is arranged on the steering column assembly, the universal joint is connected between the steering column assembly and the first connecting shaft, the hydraulic steering gear is arranged at the bottom end of the first connecting shaft, the steering mechanism comprises a steering support, a hub, a tire, a telescopic oil cylinder, a rack, a gear connecting rod and a slewing bearing, the hub and the tire are mounted below the steering support, the slewing bearing is arranged above the steering support, one end of the telescopic oil cylinder is connected with the steering support, the other end of the telescopic oil cylinder is provided with the rack, the gear connecting rod is mounted on the rack and is connected with the rack in an occlusion manner, the lifting mechanism comprises an upper cover plate, an outer frame, a lifting support, a lifting oil cylinder and an adjustable pull rod, wherein the upper cover plate is arranged above the outer frame through an outer hexagon screw, the lifting support is arranged on the inner side of the outer frame, the lifting oil cylinder is connected below the lifting support through an inner hexagon screw, the adjustable pull rod is arranged below the lifting oil cylinder, the clasping mechanism comprises a fixed support, a rotary connecting lug, a bearing connecting plate, a third bearing, a second connecting shaft, a fourth bearing, a clasping roller, a limiting sleeve, a limiting support, a guide rail protective sleeve, an oil cylinder fixing part, a clasping oil cylinder and a joint bearing, the clasping oil cylinder is arranged on the fixed support and is fixed through the oil cylinder fixing part, the rotary connecting lug is connected to the front end of the fixed support, and the rotary connecting lug is connected with the bearing connecting plate through the third bearing, the upper end and the lower end of the bearing connecting plate are connected with one end of a second connecting shaft, the second connecting shaft is sleeved with a clamping roller, a fourth bearing is installed at the other end of the second connecting shaft respectively, a limiting sleeve is sleeved on a limiting support, a guide rail protective sleeve is arranged on the surface of the limiting support, and the joint bearing is connected between the bearing connecting plate and the clamping oil cylinder.

Preferably, in order to realize more accurate and stable operation of the traction device and more accurate direction control during the traction or the pushing of the airplane, the forward control console and the reverse control console in the bidirectional double-rudder control system share one set of hydraulic system.

Preferably, in order to realize a precise turn with a small radius, the wheel hub and the tire are respectively arranged on two sides of the frame, and the wheel hub and the tire are independently arranged.

Preferably, in order to realize forced synchronization of the left hydraulic steering mechanism and the right hydraulic steering mechanism, the telescopic oil cylinder drives the wheel hub and the tire below the steering support to rotate in the same direction through the meshed connection of the rack and the gear connecting rod.

Preferably, in order to realize the accuracy and stability of the wheel clamping process, the clamping rollers are concave limiting fixed wheels which are symmetrically arranged, and the clamping rollers are connected in an opposite or reverse rotating manner through clamping cylinders.

Preferably, in order to ensure the miniaturization and the light weight of the traction device on the premise of ensuring the traction efficiency, the lifting oil cylinder drives the lifting support to tilt forwards and lift in the outer frame through the adjustable pull rod.

Preferably, in order to use the clean renewable new energy as the power source, the driving system uses electric energy as the driving energy source.

The invention has the beneficial effects that: the novel double-rudder hydraulic steering clamp type electric traction device of the airplane is reasonable in design, a clean renewable new energy storage battery pack is used as a power source, the same power as that of a fuel traction device is realized by using a high-voltage heavy-current walking motor, meanwhile, the design taking a double-rudder bidirectional operating system, a hydraulic clamp system, a single-oil-cylinder lifting and forward-leaning lifting system and a double rear-wheel steering system with a hydraulic steering forced synchronization function as a technical core is adopted, under the conditions of improving the safety coefficient and ensuring the unchanged traction efficiency, the miniaturization, light weight and simplification of the airplane traction device are successfully realized, compared with the prior similar mechanical traction device, the volume and the weight of the novel double-rudder hydraulic steering clamp type electric traction device are only equal to one third or even one fourth of other devices, and because the double rear-wheel steering system with the hydraulic steering forced synchronization function is adopted, the unloaded turning radius and the fully loaded turning radius of the novel traction device are both the smallest, the aircraft has the advantages that the flexibility of the aircraft towed by ground service personnel is greatly improved, the aircraft towing in a narrow space becomes practical, in addition, due to the adoption of the double-rudder bidirectional operating system, the aircraft towing can smoothly realize the towing in the advancing and pushing directions, and the simultaneous application of the double rear wheel steering system and the double-rudder bidirectional operating system with the hydraulic steering forced synchronization function has important military significance for realizing the efficient towing of the aircraft in a narrow field such as a navigation mother deck.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the driving system of the present invention;

FIG. 3 is a schematic view of the braking system of the present invention;

FIG. 4 is a schematic structural diagram of a master cylinder of the present invention;

FIG. 5 is a schematic view of the parking brake actuator of the present invention;

FIG. 6 is a schematic view of the steering system of the present invention;

FIG. 7 is a schematic view of the steering mechanism of the present invention;

FIG. 8 is a schematic view of the lifting mechanism of the present invention;

fig. 9 is a schematic structural diagram of the clasping mechanism of the present invention.

In the figure: 1. a vehicle body system, 2, a two-way double-rudder operating system, 3, a driving system, 4, a braking system, 5, a steering system, 6, a steering mechanism, 7, a lifting mechanism, 8, a holding mechanism, 1-1, a seat, 1-2, an instrument frame, 1-3, a vehicle frame, 2-1, a forward operating platform, 2-2, a reverse operating platform, 3-1, a left hub nut, 3-2, a rear axle half shaft, 3-3, a first bolt, 3-4, a bearing end cover, 3-5, a radial bearing shaft, 3-6, a first half shaft oil seal, 3-7, an oil seal bush, 3-8, a shaft elastic collar, 3-9, a left axle half shaft sleeve and a flange, 3-10, a bolt and an axle housing flange, 3-11, a gear box with a reduction box, 3-12 and an O-shaped sealing ring, 3-13 parts of second half shaft oil seal, 3-14 parts of right half shaft sleeve and flange plate, 3-15 parts of right hub nut, 3-16 parts of hub bolt, 3-17 parts of reduction gearbox shell, 3-18 parts of differential mechanism, 4-1 parts of oil storage tank, 4-2 parts of brake master cylinder, 4-3 parts of brake master cylinder bracket, 4-4 parts of return spring, 4-5 parts of brake pedal, 4-6 parts of push rod, 4-7 parts of shield, 4-8 parts of elastic retainer ring, 4-9 parts of piston, 4-10 parts of O-shaped ring, 4-11 parts of oil inlet pipe joint, 4-12 parts of first dustproof plug, 4-13 parts of cylinder body, 4-14 parts of valve sealing ring, 4-15 parts of sealing cone, 4-16 parts of second dustproof plug, 4-17 parts of hand brake, 4-18 parts of hand brake, The device comprises a hand brake switch, 4-19 parts, a support, 4-20 parts, a pull rope, 5-1 parts, a steering wheel, 5-2 parts, a steering column, 5-3 parts, a combined instrument support, 5-4 parts, a universal joint, 5-5 parts, a first connecting shaft, 5-6 parts of a hydraulic steering gear, 6-1 parts, a steering support, 6-2 parts, a hub and a tire, 6-3 parts of a telescopic oil cylinder, 6-4 parts of a rack, 6-5 parts of a gear connecting rod, 6-6 parts of a rotary bearing, 7-1 parts of an upper cover plate, 7-2 parts of an outer frame, 7-3 parts of a lifting support, 7-4 parts of a lifting oil cylinder, 7-5 parts of an adjustable pull rod, 8-1 parts of a fixed support, 8-2 parts of a rotary connecting lug, 8-3 parts of a bearing connecting plate, 8-4 parts of a, 8-6 parts of a second connecting shaft, 8-7 parts of a fourth bearing, 8-8 parts of a clamping roller, 8-9 parts of a limiting sleeve, 8-10 parts of a limiting support, 8-11 parts of a guide rail protective sleeve, 8-12 parts of an oil cylinder fixing part, 8-13 parts of a clamping oil cylinder and a joint bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, a novel holding type electric traction device for double-rudder hydraulic steering of an airplane includes a body system 1, a bidirectional double-rudder operating system 2, a driving system 3, a braking system 4, a steering system 5, a steering mechanism 6, a lifting mechanism 7 and a holding mechanism 8; the automobile body system 1 comprises a seat 1-1, an instrument frame 1-2 and a frame 1-3, the seat 1-1 is arranged at the tail end of the frame 1-3, the instrument frame 1-2 is arranged in front of the seat 1-1, the frame 1-3 is of a frame structure, the bidirectional double-rudder operating system 2 comprises a forward operating console 2-1 and a reverse operating console 2-2, the forward operating console 2-1 and the reverse operating console 2-2 are arranged in a left-right mode, the driving system 3 comprises a left hub nut 3-1, a rear axle half shaft 3-2, a first bolt 3-3, a bearing end cover 3-4, a radial bearing shaft 3-5, a first half shaft oil seal 3-6, an oil seal bushing 3-7 and an elastic collar 3-8 for a shaft, A left half shaft sleeve and flange 3-9, bolts and an axle housing flange 3-10, a gearbox with a reduction box 3-11, an O-shaped sealing ring 3-12, a second half shaft oil seal 3-13, a right half shaft sleeve and flange 3-14, a right hub nut 3-15, hub bolts 3-16, a reduction box shell 3-17 and a differential mechanism 3-18, wherein the left hub nut 3-1 is arranged on a hub at the left end of a driving system 3, one side of a rear axle half shaft 3-2 is connected with the left hub, the other side of the rear axle half shaft 3-2 is connected with a bearing end cover 3-4 through the first bolt 3-3, the bearing end cover 3-4 is clamped at the outer side of the radial bearing shaft 3-5, the first half shaft oil seal 3-6 is arranged inside the radial bearing shaft 3-5 at the left side, and the outer side of the first half shaft oil seal 3-6 is wrapped with an oil seal bush 3-7, the elastic retainer ring 3-8 for the shaft is arranged at the shaft end of the radial bearing shaft 3-5, the left half shaft sleeve and the flange 3-9 are arranged at the left side of the gearbox with the reduction gearbox 3-11 of the gearbox, the O-shaped sealing ring 3-12 is arranged below the bolt and the flange 3-10 of the axle housing, the second half shaft oil seal 3-13 is arranged inside the right side radial bearing shaft 3-5, the right half shaft sleeve and the flange 3-14 are connected at the right side of the gearbox with the reduction gearbox 3-11 of the gearbox, the right hub nut 3-15 is connected with the hub bolt 3-16 and is arranged on a right-end hub, the differential mechanism 3-18 is arranged in the reduction gearbox shell 3-17, the brake system 4 comprises an oil storage tank 4-1, 4-2 parts of a master cylinder, 4-3 parts of a master cylinder bracket, 4-4 parts of a return spring, 4-5 parts of a brake pedal, 4-6 parts of a push rod, 4-7 parts of a protective cover, 4-8 parts of an elastic retainer ring, 4-9 parts of a piston, 4-10 parts of an O-shaped ring, 4-11 parts of an oil inlet pipe joint, 4-12 parts of a first dustproof plug, 4-13 parts of a cylinder body, 4-14 parts of a valve sealing ring, 4-15 parts of a sealing cone, 4-16 parts of a second dustproof plug, 4-17 parts of a hand brake, 4-18 parts of a hand brake switch, 4-19 parts of the bracket and 4-20 parts of a pull cable, wherein the oil storage tank 4-1 part, 4-2 parts of the master cylinder, 4-3 parts of the master cylinder bracket, 4-4 parts of the return spring and 4-5 parts of the brake pedal form a brake pedal structure of, the brake master cylinder 4-2 is mounted on a brake master cylinder support 4-3 through a connecting bolt, the brake pedal 4-5 is connected with the other end of the brake master cylinder 4-2, a return spring 4-4 is arranged on the brake pedal 4-5, the push rod 4-6, a shield 4-7, an elastic check ring 4-8, a piston 4-9, an O-shaped ring 4-10, an oil inlet pipe joint 4-11, a first dust plug 4-12, a cylinder body 4-13, a valve seal ring 4-14, a seal cone 4-15 and a second dust plug 4-16 form the brake master cylinder 4-2 of the brake system 4, one end of the push rod 4-6 is inserted into the cylinder body 4-13, and the shield 4-7 is arranged at the connection position of the outer side of the push rod 4-6 and the cylinder body 4-13, an elastic check ring 4-8 is arranged at the joint of the inner side of the push rod 4-6 and the cylinder body 4-13, the piston 4-9 is arranged at the top end of the push rod 4-6 positioned in the cylinder body 4-13, the O-shaped ring 4-10 is clamped between the oil inlet pipe joint 4-11 and the cylinder body 4-13, the first dustproof plug 4-12 is arranged at the top end of the oil inlet pipe joint 4-11, the sealing cone 4-15 is positioned at the other end of the cylinder body 4-13, the sealing cone 4-15 is connected with the piston 4-9 through a return spring, a valve sealing ring 4-14 is arranged at the joint of the sealing cone 4-15 and the return spring, the second dustproof plug 4-16 is arranged below the sealing cone 4-15, the hand brake 4-17, the hand brake switch 4-18, The parking brake control device of the brake system 4 is composed of supports 4-19 and pull cables 4-20, the hand brakes 4-17 are of a ratchet wheel type, the hand brakes 4-17 are rotatably connected to the supports 4-19, hand brake switches 4-18 are arranged between the hand brakes 4-17 and the supports 4-19, the pull cables 4-20 are connected below the supports 4-19, the steering system 5 comprises a steering wheel 5-1, a steering column 5-2, a combined instrument support 5-3, a universal joint 5-4, a first connecting shaft 5-5 and a hydraulic steering gear 5-6, the steering wheel 5-1 is installed at the top end of a steering column assembly 5-2, the combined instrument support 5-3 is arranged on the steering column assembly 5-2, the universal joint 5-4 is connected between a steering column assembly 5-2 and a first connecting shaft 5-5, a hydraulic steering gear 5-6 is arranged at the bottom end of the first connecting shaft 5-5, the steering mechanism 6 comprises a steering support 6-1, a hub and tire 6-2, a telescopic oil cylinder 6-3, a rack 6-4, a gear connecting rod 6-5 and a rotary bearing 6-6, the hub and tire 6-2 are mounted below the steering support 6-1, the rotary bearing 6-6 is arranged above the steering support 6-1, one end of the telescopic oil cylinder 6-3 is connected with the steering support 6-1, the rack 6-4 is arranged at the other end of the telescopic oil cylinder 6-3, the gear connecting rod 6-5 is connected with the rack 6-4 in an occlusion manner by being mounted on the rack 6-4, the lifting mechanism 7 comprises an upper cover plate 7-1, an outer frame 7-2, a lifting support 7-3, a lifting oil cylinder 7-4 and an adjustable pull rod 7-5, the upper cover plate 7-1 is mounted above the outer frame 7-2 through an outer hexagonal screw, the lifting support 7-3 is arranged on the inner side of the outer frame 7-2, the lifting oil cylinder 7-4 is connected below the lifting support 7-3 through an inner hexagonal screw, the adjustable pull rod 7-5 is mounted below the lifting oil cylinder 7-4, the clasping mechanism 8 comprises a fixed support 8-1, a rotary connecting lug 8-2, a bearing connecting plate 8-3, a third bearing 8-4, a second connecting shaft 8-5, a fourth bearing 8-6, a clasping roller 8-7, a limiting sleeve 8-8, a limiting sleeve 8 and an adjusting pull rod 7-5, The device comprises a limiting support 8-9, a guide rail protecting sleeve 8-10, an oil cylinder fixing piece 8-11, a clamping oil cylinder 8-12 and a joint bearing 8-13, wherein the clamping oil cylinder 8-12 is installed on the fixing support 8-1, the clamping oil cylinder 8-12 is fixed through the oil cylinder fixing piece 8-11, a rotating lug 8-2 is connected to the front end of the fixing support 8-1, the rotating lug 8-2 is connected with a bearing connecting plate 8-3 through a third bearing 8-4, the upper end and the lower end of the bearing connecting plate 8-3 are both connected with one end of a second connecting shaft 8-5, a clamping roller 8-7 is sleeved on the second connecting shaft 8-5, and a fourth bearing 8-6 is installed at the other end of the second connecting shaft 8-5 respectively, the limiting sleeve 8-8 is sleeved on the limiting support 8-9, the surface of the limiting support 8-9 is provided with a guide rail protective sleeve 8-10, and the joint bearing 8-13 is connected between the bearing connecting plate 8-3 and the clamping oil cylinder 8-12.

The forward control console 2-1 and the reverse control console 2-2 in the bidirectional double-rudder control system 2 share a set of hydraulic system, and the forward and backward movement of the traction device and the operation of wheel clamping or releasing, lifting or descending are realized by using the same-direction operation control traction device as a principle, so that the clamping or releasing, lifting or descending operation of front wheels and undercarriage of an airplane is more accurate and stable, the direction control during the traction or the pushing of the airplane is more accurate, the wheel hubs and the tires 6-2 are respectively arranged on two sides of the frame 1-3, the wheel hubs and the tires 6-2 are independently arranged, the steering is realized by adopting an independently arranged rear steering wheel structure, the defect that the steering of the rear wheels is not accurate is actively overcome by using the structural characteristics of a piggyback type traction device, the accurate turning with small radius is realized, and the traction of the airplane is realized under the condition that the field is limited, the telescopic oil cylinder 6-3 is connected with the gear connecting rod 6-5 through the meshing of the rack 6-4 to drive the wheel hub and the tire 6-2 below the steering support 6-1 to rotate in the same direction, so that the forced synchronization of a left hydraulic steering mechanism and a right hydraulic steering mechanism is realized, the hydraulic steering accuracy of the aircraft traction device can be greatly improved on the basis of effectively controlling the production cost, the clamping rollers 8-7 are symmetrically arranged concave limiting fixed wheels, the clamping rollers 8-7 are connected through the clamping oil cylinders 8-12 in a rotating mode in the opposite direction or the reverse direction, the accuracy and the stability of the wheel clamping process are realized, the unbalanced steering problem in the wheel clamping process is effectively prevented, the lifting oil cylinder 7-4 drives the lifting support 7-3 to lift in the outer frame 7-2 through the adjustable pull rod 7-5, and the lifting phase of the wheel is prevented from occurring due to the fact that the left weight and the right weight born by the bucket on the lifting support 7-3 Deflecting, promote simultaneously and lift the wheel after, because the aircraft front fuselage weight is born by the scraper bowl, each tire of draw gear and ground frictional force increase reduce and pull the kinetic energy loss, under the prerequisite of guaranteeing traction efficiency, make draw gear miniaturized, lightweight, actuating system 3 uses the electric energy as driving energy, uses renewable energy, and drive high power motor and hydraulic system accomplish the traction to the aircraft, not only alleviates self dead weight greatly, also can the energy saving simultaneously, reduces and causes environmental pollution.

The working principle is as follows: when the novel airplane double-rudder hydraulic steering clamping type electric traction device is used, the bidirectional double-rudder control system 2 shares one set of hydraulic system, the traction device is controlled to move to wheels of an airplane through the operation of the forward control console 2-1, the clamping rollers 8-7 move oppositely through the clamping cylinders 8-12, the accuracy and the stability of the airplane wheel clamping process are realized, meanwhile, the lifting cylinder 7-4 drives the lifting support 7-3 to tilt forwards through the adjustable pull rod 7-5, the weight of the front body of the airplane is borne by the bucket, the friction force between each tire of the traction device and the ground is increased, the loss of traction kinetic energy is reduced, the traction device is miniaturized and lightened on the premise of ensuring the traction efficiency, then the airplane is dragged through the reverse control console 2-2, and in the moving process, the telescopic cylinder 6-3 drives the steering support 6 through the meshing connection of the rack 6-4 and the gear connecting rod 6-5 to drive the steering support 6 The wheel hub and the tire 6-2 below the wheel hub 1 rotate in the same direction, so that forced synchronization of the left hydraulic steering mechanism and the right hydraulic steering mechanism is realized, accurate turning with small radius is further realized, and the traction of the airplane is realized under the condition of ensuring limited places.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.