Electric walking device for aircraft tail dock

Abstract

The utility model discloses an electric walking device for an aircraft tail dock, which is characterized in that a steering motor is connected with a steering speed reducer, one end of a connecting plate is mounted on the steering speed reducer, a plurality of sensors are mounted above the connecting plate through a sensor mounting plate, and the sensors are matched with sensor detection rods; a sensor detection rod is arranged on a large gear of a steering gear, the other end of a connecting plate is installed on a first support, the first support is welded to a tail dock, the lower surface of the connecting plate is installed on a slewing bearing, a steering speed reducer is in transmission connection with the slewing bearing through the steering gear, and the slewing bearing is connected with a first wheel carrier through an inner hexagon screw. Wheels are arranged on the first wheel carrier through a first shaft, and a walking large gear is arranged at one end of the first shaft. The double-input-shaft worm and gear speed reducer, the planetary speed reducer, the straight gear, the slewing bearing and the sensor are used in cooperation, unpowered tail dock walking is achieved, and walking and steering of the tail dock are accurately controlled.

Description

Technical Field

[0001] The utility model relates to, in particular to an electric walking device used for an aircraft tail dock. Background Art

[0002] The tail dock walking of a certain type of aircraft requires a special wheel set for driving. According to the structural form of the tail of the aircraft and the tail dock, the utility model adopts a worm gear reducer plus a motor and a planetary reducer plus a motor combination mechanism to achieve the straight movement and steering of the tail dock. The sensor positioning is adopted, and the steering accuracy is high: the dual input shaft and large speed ratio worm gear mechanism is adopted to realize the unpowered (manually driven) tail dock walking, thereby solving the problems of high input force requirements and unpowered drive. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an electric walking device for an aircraft tail dock, which adopts the coordinated use of a dual-input shaft worm gear reducer, a planetary reducer, a spur gear, a slewing bearing, and a sensor to achieve unpowered tail dock walking and precise control of the walking and steering of the tail dock.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: an electric walking device for an aircraft tail dock, comprising two driving wheel assemblies and two driven wheel assemblies, wherein the driving wheel assembly comprises a steering motor, a steering reducer, a first support, a walking motor, a walking reducer, a driving head, a crank, a first sensor mounting plate, a first sensor, a first sensor detection rod, a connecting plate, a steering gear, a slewing bearing, a hexagon socket screw, a first wheel frame, a wheel, a first shaft, a walking large gear and a walking small gear, the steering motor is connected to the steering reducer, one end of the connecting plate is mounted on the steering reducer, a plurality of sensors are mounted above the connecting plate through the sensor mounting plate, and the sensors and the sensor detection rods In coordination, the sensor detection rod is arranged on the large gear of the steering gear, the other end of the connecting plate is installed on the first support, the first support is welded on the tail dock, the lower surface of the connecting plate is installed on the slewing bearing, the steering reducer is connected to the slewing bearing through the steering gear, the slewing bearing is connected to the first wheel frame through the hexagon socket screw, a wheel is arranged on the first wheel frame through the first shaft, a large walking gear is arranged at one end of the first shaft, the first shaft with two deep groove ball bearings is connected to the wheel through a flat key, the inner side of the deep groove ball bearing is installed on the first shaft, the large walking gear is meshed with the small walking gear, the small walking gear is connected to the walking motor through the walking reducer, and a driving head is also arranged on the walking reducer, and the driving head is connected to the crank.

[0005] Preferably, the driven wheel assembly includes a second support, a sensor mounting plate, a connecting plate, a steering gear, a slewing bearing, a second wheel frame, a wheel, a second shaft, and a second sensor detection rod. One end of the connecting plate is connected to the reducer, and the other end of the connecting plate is connected to the second support. A slewing bearing is installed below the second support, and the slewing bearing is connected to the reducer through the steering gear, and the slewing bearing is connected to the second wheel frame through a hexagon socket screw. The second wheel frame is provided with a wheel through the second shaft, and a plurality of second sensors are installed above the connecting plate through the second sensor mounting plate, and the second sensor cooperates with the second sensor detection rod, and the second sensor detection rod is arranged on the large gear of the steering gear.

[0006] Beneficial effects of the utility model: the utility model adopts the coordinated use of a double-input shaft worm gear reducer, a planetary reducer, a spur gear, a slewing bearing, and a sensor to achieve unpowered tail dock movement and precise control of the movement and steering of the tail dock, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The utility model is described in detail below with reference to the accompanying drawings and specific implementation methods;

[0008] Figure 1 It is a three-dimensional schematic diagram of the driving wheel assembly of the utility model;

[0009] Figure 2 This is a structural cross-sectional view of the driving wheel assembly of the utility model;

[0010] Figure 3 It is a three-dimensional schematic diagram of the driven wheel assembly of the utility model;

[0011] Figure 4 This is a cross-sectional view of the driven wheel assembly structure of the utility model. DETAILED DESCRIPTION

[0012] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0013] Reference Figure 1-4, this specific embodiment adopts the following technical scheme: an electric walking device for an aircraft tail dock, comprising two driving wheel assemblies and two driven wheel assemblies, wherein the driving wheel assembly comprises a steering motor 25, a steering reducer 26, a first support 27, a walking motor 29, a walking reducer 30, a driving head 31, a crank 32, a first sensor mounting plate 35, a first sensor 36, a first sensor detection rod 37, a connecting plate 41, a steering gear 42, a slewing bearing 45, a hexagon socket screw 46, a first wheel frame 47, a wheel 51, a first shaft 52, a walking large gear 53 and a walking small gear 63, the steering motor 25 is connected to the steering reducer 26, one end of the connecting plate 41 is mounted on the steering reducer 26, a plurality of sensors 36 are mounted above the connecting plate 41 through the sensor mounting plate 35, the sensor 36 cooperates with the sensor detection rod 37, and the sensor detection rod 3 7 is arranged on the large gear of the steering gear 42, the other end of the connecting plate 41 is installed on the first support 27, the first support 27 is welded on the tail dock, the lower surface of the connecting plate 41 is installed on the slewing bearing 45, the steering reducer 26 is connected to the slewing bearing 45 through the steering gear 42, the slewing bearing 45 is connected to the first wheel frame 47 through the hexagon socket screw 46, the first wheel frame 47 is provided with a wheel 51 through the first shaft 52, one end of the first shaft 52 is provided with a large travel gear 53, the first shaft 52 equipped with two deep groove ball bearings is connected to the wheel 51 through a flat key 62, the inner side of the deep groove ball bearing 50 is installed on the second shaft 52, the large travel gear 53 is meshed with the small travel gear 63, the small travel gear 63 is connected to the travel motor 29 through the travel reducer 30, and the travel reducer 30 is also provided with a drive head 31, and the drive head 31 is connected to the crank 32.

[0014] It is worth noting that the driven wheel assembly includes a second support 109, a second sensor mounting plate 107, a connecting plate 41, a steering gear 42, a slewing bearing 45, a second wheel frame 110, a wheel 51, a second shaft 100 and a second sensor detection rod 108. One end of the connecting plate 41 is connected to the reducer, and the other end of the connecting plate 41 is connected to the second support 109. A slewing bearing 45 is installed below the second support 109. The slewing bearing 45 is connected to the reducer through the steering gear 42. The slewing bearing 45 is connected to the second wheel frame 110 through the hexagon socket screw 46. The second wheel frame 110 is provided with a wheel 51 through the second shaft 100. A plurality of second sensors 111 are installed above the connecting plate 41 through the second sensor mounting plate 107. The second sensors 111 cooperate with the second sensor detection rod 108, and the second sensor detection rod 108 is arranged on the large gear of the steering gear 42.

[0015] The working principle of this specific implementation method:

[0016] Tail dock straight travel: The travel motor 29 is powered on to transmit power to the travel reducer 30, and the output shaft drives the travel pinion 63, which transmits the force to the travel gear 53 installed on the first shaft 52 through gear transmission. The first shaft 52 with two deep groove ball bearings is connected to the wheel 51 through a flat key 62. The inner side of the deep groove ball bearing 52 is installed on the first shaft 52, and the outer side is installed in the hole of the wheel frame 47 (the wheel frame is fixed). The travel gear 53 drives the second shaft 52 to transmit power to the wheel 51 installed on the second shaft 52, driving the tail dock to travel. The rotation of the wheel 51 is controlled by controlling the rotation of the travel motor 29, so as to achieve the function of tail dock travel.

[0017] Tail dock turning: One end of the connecting plate 41 is mounted on the steering reducer 26, the other end is mounted on the support 27 (the support is welded on the tail dock), and the lower surface is mounted on the slewing bearing 45. The steering motor 25 is powered on to transmit power to the steering reducer 26. Through gear transmission, the steering reducer 26 drives the steering pinion 42 to transmit power to the slewing bearing 45, thereby driving the first wheel frame 47 connected by the hexagon socket screw 46 and all the components connected thereto, driving the wheel to turn. The steering of the wheel 51 is controlled by controlling the rotation of the steering motor 25, thereby achieving the function of tail dock steering.

[0018] Unpowered dock travel: In the absence of electricity, the crank 32 is manually driven to transmit power to the input shaft of the travel reducer 30 connected to the drive head 31, driving the wheels to rotate (the principle is the same as the straight travel of the dock). The crank 32 is manually driven to drive the wheels 51 to rotate, thereby achieving the function of unpowered dock travel.

[0019] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electric walking device for an aircraft tail dock, characterized in that: The invention comprises two driving wheel assemblies and two driven wheel assemblies, wherein the driving wheel assembly comprises a steering motor (25), a steering reducer (26), a first support (27), a travel motor (29), a travel reducer (30), a driving head (31), a crank (32), a first sensor mounting plate (35), a first sensor (36), a first sensor detection rod (37), a connecting plate (41), a steering gear (42), a slewing bearing (45), a hexagon socket screw (46), a first wheel frame (47), a wheel (51), a first shaft (52), a travel gear (53) and a travel pinion (63), wherein the steering motor (25) is connected to the steering reducer (26), one end of the connecting plate (41) is mounted on the steering reducer (26), a plurality of sensors (36) are mounted above the connecting plate (41) through the sensor mounting plate (35), the sensors (36) cooperate with the sensor detection rod (37), and the sensor detection rod (37) is arranged on the gear of the steering gear (42). The other end of the connecting plate (41) is mounted on the first support (27), the first support (27) is welded on the tail dock, the lower surface of the connecting plate (41) is mounted on the slewing bearing (45), the steering reducer (26) is connected to the slewing bearing (45) through the steering gear (42), the slewing bearing (45) is connected to the first wheel frame (47) through the hexagon socket screw (46), the first wheel frame (47) is provided with a wheel (51) through the first shaft (52), one end of the first shaft (52) is provided A large travel gear (53) is arranged, a first shaft (52) equipped with two deep groove ball bearings is connected to a wheel (51) via a flat key (62), the inner side of the deep groove ball bearing (50) is installed on the first shaft (52), the large travel gear (53) is meshed with a small travel gear (63), the small travel gear (63) is connected to a travel motor (29) via a travel reducer (30), and a driving head (31) is also arranged on the travel reducer (30), and the driving head (31) is connected to a crank (32).

2. The electric walking device for an aircraft tail dock according to claim 1, characterized in that: The driven wheel assembly comprises a second support (109), a second sensor mounting plate (107), a connecting plate (41), a steering gear (42), a slewing bearing (45), a second wheel frame (110), a wheel (51), a second shaft (100), and a second sensor detection rod (108). One end of the connecting plate (41) is connected to the reducer, and the other end of the connecting plate (41) is connected to the second support (109). A slewing bearing (45) is installed below the second support (109). The slewing bearing (45) is connected to the second wheel frame (110). The steering gear (42) is connected to the reducer, and the slewing bearing (45) is connected to the second wheel frame (110) through the hexagon socket screw (46); the second wheel frame (110) is provided with a wheel (51) through the second shaft (100), and a plurality of second sensors (111) are installed above the connecting plate (41) through the second sensor installation plate (107); the second sensors (111) cooperate with the second sensor detection rod (108), and the second sensor detection rod (108) is arranged on the large gear of the steering gear (42).

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