CN210366812U

CN210366812U - Platform for loading and unloading goods for airplane

Info

Publication number: CN210366812U
Application number: CN201920732008.5U
Authority: CN
Inventors: 李瑞贤; 庞学丰; 王文宗; 李书杰
Original assignee: Tianjin Aerospace Electromechanical Equipment Research Institute
Current assignee: Tianjin Aerospace Electromechanical Equipment Research Institute
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-04-21
Anticipated expiration: 2029-05-21

Abstract

The utility model provides a platform for aircraft cargo handling, including lower carriage and upper bracket, the upper bracket supports on the lower carriage through four shear force forks, each shear force fork includes a bracing piece and a first propelling movement component, the bracing piece bottom is articulated on the lower carriage, the bracing piece upper end is provided with the gyro wheel, first propelling movement component and bracing piece cross arrangement, first propelling movement component rotates and installs on the lower carriage, this first propelling movement component propelling movement end articulates there is the slider, this slider slidable mounting is on the bracing piece, four first propelling movement components rotate around pivot separately under the synchronous drive mechanism drive in step. The utility model discloses create a platform for aircraft cargo handling, reduced the operational risk, improved handling aircraft efficiency, reduced workman's intensity of labour, reduced box goods air freight cost.

Description

Platform for loading and unloading goods for airplane

Technical Field

The invention belongs to the field of production of auxiliary equipment of box-type cargo transport airplanes, and particularly relates to a platform for loading and unloading cargos by an airplane.

Background

Military aircraft are required to be adopted for air transportation of the whole star packing box of a certain model, but the whole overall dimension and weight of the packing box exceed the hoisting capacity of the military aircraft, and the packing box cannot be hoisted into a cargo cabin of the military aircraft through a lifting hook of the aircraft.

Disclosure of Invention

In view of the above, the present invention is directed to a platform for loading and unloading cargo for an aircraft to smoothly move box cargo onto a transport aircraft.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a platform for loading and unloading goods for an airplane comprises a lower support and an upper support, wherein the upper support is supported on the lower support through four shear forks which are arranged in a square shape, and a grounding wheel is arranged on the lower support;

each shear force fork includes a bracing piece and a first propelling movement component, the bracing piece bottom is articulated on the lower carriage, the upper end of the support bar is provided with the gyro wheel, the upper carriage bottom surface is equipped with the spout that supplies the gyro wheel to remove, the gyro wheel matches the setting in its corresponding spout, first propelling movement component and bracing piece cross arrangement, first propelling movement component rotates through the pivot and installs on the lower carriage, this first propelling movement component propelling movement end articulates there is the slider, this slider slidable mounting is on the bracing piece, four first propelling movement components are around the synchronous rotation of pivot separately under the synchronous drive mechanism drive.

Furthermore, the synchronous driving mechanism comprises a motor, a double-shaft speed reducer driven by the motor, and a cross-shaped commutator driven by each double-shaft speed reducer, wherein each output shaft of each cross-shaped commutator drives a rotating shaft corresponding to one first pushing element to rotate.

Furthermore, the shear fork further comprises a pull rod, the pull rod and the supporting rod are arranged in a crossed mode, the upper end of the pull rod is hinged to the upper support, and the bottom end of the pull rod is hinged to the supporting rod.

Furthermore, the upper bracket is provided with a central guide rail corresponding to the upper guide rail of the airplane along the material moving direction, and the two sides of the central guide rail of the upper bracket are respectively provided with a roller conveying mechanism.

Furthermore, the upper bracket discharge end is rotatably provided with a winch mounting rack through a pin shaft, and the winch mounting rack is locked and fixed with the upper bracket through a locking piece.

Furthermore, two sides of the lower support are respectively provided with at least two auxiliary supporting mechanisms, each auxiliary supporting mechanism comprises a second pushing element which is arranged on the lower support and a push rod is vertically arranged downwards, and a supporting block is arranged at the bottom end of the push rod of the second pushing element.

Furthermore, a fine adjustment mechanism is further arranged on the lower support and comprises a third pushing element, a base, a screw rod, a sliding block, a sliding rail and a bottom plate, wherein the third pushing element is fixedly arranged on the lower support, a pushing rod of the third pushing element is arranged downwards, the base is arranged at the pushing end of the third pushing element, the sliding block is arranged on the base, the sliding rail is horizontally arranged and is vertical to the central guide rail, the sliding rail is fixedly arranged on the bottom plate, the sliding rail and the sliding block are installed in a matching mode to form a moving pair, the screw rod is arranged on the bottom plate, and the sliding block is installed on the screw rod in a threaded mode.

Compared with the prior art, the platform for loading and unloading goods of the airplane has the following advantages:

the platform for loading and unloading goods of the airplane is created by the invention, and starts with solving the problem that the platform cannot be hoisted into a goods cabin of the airplane through a lifting hook of the airplane, and ensures that the process of loading and unloading the large-size box-type goods of the airplane is safe and reliable; and the efficiency of the box cargo handling aircraft is high; the outdoor use is not influenced by weather below the rain, the operation risk is reduced, the efficiency of loading and unloading the airplane is improved, the labor intensity of workers is reduced, and the air transportation cost of box-type goods is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

FIG. 1 is a perspective view of a platform for loading and unloading cargo from an aircraft according to the present embodiment;

FIG. 2 is a schematic illustration of a platform for loading and unloading cargo from an aircraft according to the present embodiment;

FIG. 3 is a block diagram of a synchronous drive in a platform for loading and unloading cargo from an aircraft according to the present embodiment;

FIG. 4 is a front view of a winch mount of the present embodiment of a platform for aircraft cargo handling;

FIG. 5 is a left side view of a winch mounting bracket of a platform for aircraft cargo handling according to the present embodiment;

fig. 6 is a structural diagram of a fine adjustment mechanism in a platform for loading and unloading cargo of an aircraft according to the embodiment.

Description of reference numerals:

1-lower support; 2-upper support;

3-a ground engaging wheel; 4-an auxiliary support mechanism;

5-fine adjustment mechanism; 51-a third pusher element;

52-a base; 53-a screw rod;

54-a slide block; 55-a slide rail;

56-a base plate; 6-a central guide rail;

7-winch mounting;

72-a base; 73-a pin shaft;

74-fixed block; 75-a locking member;

8-a shear fork; 81-support bar;

82-a first pusher element; 83-a rotating shaft;

84-a pull rod; 85-roller;

9-a synchronous drive mechanism; 91-a motor;

92-a twin-shaft reducer; 93-cross commutator.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

As shown in fig. 1 and 2, a platform for loading and unloading goods for an airplane includes a lower bracket 1 and an upper bracket 2, the lower bracket 1 and the upper bracket 2 are opposite, in this embodiment, the upper bracket 2 and the lower bracket 1 are preferably rectangular frame structures formed by assembling i-beams, the long side direction of the rectangular frame structures is the material moving direction of the platform, and a beam structure for reinforcement is arranged in the rectangular frame structures. The upper support 1 is supported on the lower support 1 through four shear forks 8, the four shear forks 8 are arranged in a square shape, the lifting action of the upper support 2 is realized through the four shear forks 8, and the lower support 1 is provided with a grounding wheel 3 to realize the movement of a platform; in the four shear forks, each shear fork 8 comprises a support rod 81 and a first pushing element 82, the first pushing element 82 is preferably an electric push rod, a hydraulic cylinder or a cylinder structure, the bottom end of the support rod 81 is hinged on the lower bracket 1, the upper end of the support rod 81 is provided with a roller 85, the bottom surface of the upper bracket 2 is provided with a chute for the roller 85 to move, the chute direction is a platform material moving direction, the roller 85 is arranged in the corresponding chute in a matching manner, the first pushing element 82 and the support rod 81 are arranged in a crossed manner, the first pushing element 82 is rotatably installed on the lower bracket 1 through a rotating shaft 83, the specific structure is that the bottom end of the first pushing element 82 is fixedly provided with a support, the rotating shaft 83 is rotatably installed on the lower bracket 1, the rotating shaft 83 is fixedly connected with the support, the rotating shaft 83 is horizontal and vertical to the platform material moving direction, the support is driven to rotate when the rotating shaft 83 rotates, the pushing end, i.e. the telescopic top end, of the first pushing element 82 is hinged with a sliding part 86, the sliding part 86 is slidably mounted on the supporting rod 81, and the four first pushing elements 82 synchronously rotate around the respective rotating shafts 83 under the driving of the synchronous driving mechanism 9. During the application, four first propelling movement components 82 rotate around pivot 83 separately in step, and four first propelling movement components 82 propelling movement ends stretch out and draw back simultaneously, drive slider 86 and upwards or move down simultaneously along the bracing piece that corresponds separately, drive the bracing piece from this and rotate around respective articulated shaft, drive gyro wheel 85 along spout horizontal migration simultaneously, gyro wheel self reciprocates, because upper bracket 2 supports on gyro wheel 85, realizes the lift action of upper bracket 2.

As shown in fig. 3, the synchronous driving mechanism 9 includes a motor 91, two shaft reducers 92 driven by the motor 91, and a cross commutator 93 driven by each of the two shaft reducers, wherein a main shaft of the motor 91 is horizontal and vertical to a material moving direction of the platform, and an output shaft of the cross commutator 93 is also horizontal and vertical to a conveying direction of the platform, that is, in this embodiment, an output shaft of the cross commutator 93 is arranged along a short side direction of the lower frame 1, and there are four output shafts of the two cross commutators, and each of the four output shafts is connected to a corresponding rotating shaft 83 of one first pushing element 82 for synchronously driving the four rotating shafts 83. This structure has realized, two pivot 83 syntropy rotations that each cross commutator 93 corresponds was set up of a minor face direction of lower carriage promptly, and the pivot 83 rotation direction that a cross commutator 93 is connected is opposite with the pivot 83 rotation direction that another cross commutator 93 is connected, guarantees four first propelling movement component 82 synchronous drive effects from this, and then realizes four bracing piece synchronous motion, improves the upper bracket lift stationarity from this.

In this embodiment, in order to further improve the lifting stability of the upper bracket 2, the shear fork 8 further includes a pull rod 84, the pull rod 84 and the support rod 81 are arranged in a crossing manner, the upper end of the pull rod 84 is hinged to the upper bracket 2, and the bottom end thereof is hinged to the support rod 81.

In this embodiment, the upper bracket 2 is provided with a central guide rail 6 corresponding to the upper guide rail of the airplane along the material moving direction, and the upper bracket 2 is provided with a roller conveying mechanism on each of two sides of the central guide rail 6. The distance between the two roller conveying mechanisms and the length of the container are correspondingly arranged, so that the sliding groove arranged at the bottom of the container is matched with the central guide rail 6, the container is supported by the roller conveying mechanisms, and when the container is moved to a transport airplane from the goods platform, the container is moved to the material moving guide rail arranged on the airplane smoothly by the platform.

In this embodiment, the discharge end of the upper bracket 2 is rotatably provided with a winch mounting bracket 7 through a pin 73, the winch mounting bracket 7 is provided with an electric winch, the electric winch is used to automatically pull a container to the edge of an airplane and then pull the container to the airplane, in this embodiment, the inner side of the frame of the upper bracket 2 is provided with a fixing block 74, the pin 73 is fixedly arranged on the fixing block 74, the winch mounting bracket 7 comprises a base 72, the base 72 is a U-shaped frame structure with a downward opening, the base 72 is rotatably mounted on the pin 73, the base 72 can be turned over towards the inner side of the upper bracket 2 along the pin 73, the electric winch is mounted on the base 72, the base 72 is locked and fixed with the upper bracket 2 through a locking member 75, and the locking member 75. In practical application, the electric winch is installed on the base 72, then the base 72 is locked and fixed on the upper bracket 2 through the locking piece 75, when the cargo box is pulled to be close to the airplane by a rope on the electric winch, the locking piece 75 is loosened, the base 72 turns inwards around the pin shaft 73, the situation that the base 72 obstructs the cargo box to move out is avoided, and the cargo box is guaranteed to move to the airplane smoothly.

In this embodiment, at least two auxiliary supporting mechanisms 4 are respectively disposed on two sides of the lower bracket 1, each auxiliary supporting mechanism 4 includes a second pushing element which is installed on the lower bracket 1 and a push rod of which is vertically disposed downwards, and a supporting block is disposed at a bottom end of the push rod of the second pushing element. When the platform moves to a proper position, the second pushing element pushes the supporting block downwards, the supporting block lands on the ground, the ground wheels leave the ground, and the platform is finally stably supported on the ground through the supporting block. The second propelling movement component is cylinder, pneumatic cylinder or electric putter component, and this supplementary supporting mechanism has improved the stability of platform, the transfer of the box of being convenient for.

In this embodiment, in order to further improve the centering of the central guide rail and the guide rail on the aircraft, the lower bracket 1 is further provided with a fine adjustment mechanism 5, the fine adjustment mechanism includes a third pushing element 51, a base 52, a screw 53, a slider 54, a sliding rail 55 and a bottom plate 56, wherein the third pushing element 51 is fixedly installed on the lower bracket 1, a push rod of the third pushing element 51 is arranged downward, the base 52 is installed at a pushing end of the third pushing element 51, the slider 54 is installed on the base 52, the sliding rail 55 is arranged horizontally and perpendicular to the central guide rail 6, that is, the sliding rail 55 is arranged along the short side direction of the lower bracket 1, the sliding rail 55 is fixedly installed on the bottom plate 56, the sliding rail 55 and the slider 54 are installed in a matching manner to form a moving pair, the screw 53 is arranged on the bottom plate 56, and the slider 54 is installed on the. In implementation, the platform moves to a proper position, then the third pushing element 51 pushes the base 52 to move downwards, the base 52 finally carries the bottom plate 56 to move downwards until the platform is supported on the ground by the bottom plate, then the screw rod 53 rotates to drive the sliding block 54 to move linearly along the sliding rail, and the base 52 drives the lower support 1 and the upper support 2 to move in the short side direction of the platform, so that the centering of the central guide rail 6 and the upper guide rail of the airplane is realized. After the position of the central guide rail is adjusted by the fine adjustment mechanism, the telescopic rod of the third pushing element 51 is contracted, meanwhile, the auxiliary supporting mechanism 4 acts, and the platform is stably supported on the ground by the auxiliary supporting mechanism 4. The third pushing element is an air cylinder, a hydraulic cylinder or an electric push rod element.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. A platform for loading and unloading cargo from an aircraft, comprising: the device comprises a lower support (1) and an upper support (2), wherein the upper support (2) is supported on the lower support (1) through four shear forks (8), the four shear forks (8) are arranged in a square shape, and the lower support (1) is provided with a grounding wheel (3);

each shear fork (8) comprises a supporting rod (81) and a first pushing element (82), the bottom end of the supporting rod (81) is hinged to the lower support (1), rollers (85) are arranged at the upper end of the supporting rod (81), sliding grooves for the rollers (85) to move are formed in the bottom surface of the upper support (2), the rollers (85) are arranged in the corresponding sliding grooves in a matched mode, the first pushing elements (82) and the supporting rod (81) are arranged in a crossed mode, the first pushing elements (82) are rotatably mounted on the lower support (1) through rotating shafts (83), the pushing ends of the first pushing elements (82) are hinged to sliding pieces (86), the sliding pieces (86) are slidably mounted on the supporting rod (81), and the four first pushing elements (82) are driven by a synchronous driving mechanism (9) to rotate around the rotating shafts (83) respectively in a synchronous mode.

2. A platform for aircraft cargo handling according to claim 1 and further comprising: the synchronous driving mechanism (9) comprises a motor (91), a double-shaft speed reducer (92) driven by the motor (91) and a cross-shaped commutator (93) driven by each double-shaft speed reducer, wherein each output shaft of each cross-shaped commutator (93) drives a rotating shaft (83) corresponding to one first pushing element (82) to rotate.

3. A platform for aircraft cargo handling according to claim 1 and further comprising: the shear fork (8) further comprises a pull rod (84), the pull rod (84) and the support rod (81) are arranged in a crossed mode, the upper end of the pull rod (84) is hinged to the upper support (2), and the bottom end of the pull rod (84) is hinged to the support rod (81).

4. A platform for aircraft cargo handling according to claim 1, 2 or 3 wherein: the upper bracket (2) is provided with a central guide rail (6) corresponding to the upper guide rail of the airplane along the material moving direction, and the upper bracket (2) is respectively provided with roller conveying mechanisms at two sides of the central guide rail (6).

5. A platform for aircraft cargo handling according to claim 4 and wherein: the discharging end of the upper support (2) is rotatably provided with a winch mounting rack (7) through a pin shaft (73), and the winch mounting rack (7) is locked and fixed with the upper support (2) through a locking piece (75).

6. A platform for aircraft cargo handling according to claim 4 and wherein: two sides of the lower support (1) are respectively provided with at least two auxiliary supporting mechanisms (4), each auxiliary supporting mechanism (4) comprises a second pushing element which is installed on the lower support (1) and is vertically and downwards arranged on a push rod, and a supporting block is arranged at the bottom end of the push rod of each second pushing element.

7. A platform for aircraft cargo handling according to claim 6 and wherein: the lower support (1) is further provided with a fine adjustment mechanism (5), the fine adjustment mechanism comprises a third pushing element (51), a base (52), a screw rod (53), a sliding block (54), a sliding rail (55) and a bottom plate (56), the third pushing element (51) is fixedly installed on the lower support (1), a pushing rod of the third pushing element (51) is arranged downwards, the base (52) is installed at the pushing end of the third pushing element (51), the sliding block (54) is installed on the base (52), the sliding rail (55) is horizontally arranged and perpendicular to the central guide rail (6), the sliding rail (55) is fixedly installed on the bottom plate (56), the sliding rail (55) and the sliding block (54) are installed in a matched mode to form a moving pair, the screw rod (53) is arranged on the bottom plate (56), and the sliding block (54) is installed on the screw rod (53) in a threaded mode.