A fast unloading device based on large transport aircraft

Abstract

The utility model belongs to the technical field of transportation equipment, specifically, a fast unloading device based on a large transport aircraft, including a multi-arm assembly and a conveying platform, the multi-arm assembly includes a left multi-arm mechanism and a right multi-arm mechanism with the same structure, the left multi-arm mechanism is on the left side of the cabin tail plate, and the right multi-arm mechanism is on the right side of the cabin tail plate, and the left multi-arm mechanism and the right multi-arm mechanism both include a base, a big arm, a big arm oil cylinder, a small arm, a small arm oil cylinder, a telescopic arm, a telescopic arm oil cylinder, a connecting rod and a leveling oil cylinder. The utility model adopts a multi-arm assembly combined with a transmission assembly to drive a conveyor belt rolling structure to perform loading and unloading operations, which can ensure that the loading and unloading tasks are completed quickly and efficiently.

Description

Technical Field

[0001] The utility model belongs to the technical field of transportation equipment, in particular to a fast unloading device based on a large-scale transport aircraft. Background Art

[0002] At present, large transport aircraft still use traditional lifting equipment for rapid loading and unloading of materials. Operators are required to perform hanging operations in the cabin and manually operate the lifting equipment. When the goods are lifted to the ground equipment outside the cabin, they need to manually unhook them, which is troublesome and has low loading and unloading efficiency. In emergency or wartime situations, it is necessary to ensure that the loading and unloading tasks are completed quickly and efficiently.

[0003] To this end, the utility model provides a fast unloading device based on a large-scale transport aircraft. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a fast unloading device based on a large transport aircraft, the fast unloading device is fixedly arranged on the tail board of the cabin, and includes a multi-arm assembly and a conveying platform. The multi-arm assembly includes a left multi-arm mechanism and a right multi-arm mechanism with the same structure. The left multi-arm mechanism is on the left side of the tail board of the cabin, and the right multi-arm mechanism is on the right side of the tail board of the cabin. The left multi-arm mechanism and the right multi-arm mechanism both include a base, a big arm, a big arm cylinder, a small arm, a small arm cylinder, a telescopic arm, a telescopic arm cylinder, a connecting rod and a leveling cylinder;

[0006] The base is arranged on the tail plate of the cabin, one end of the boom is hinged on one side of the base, the other end of the boom is hinged on one end of the forearm, one end of the telescopic arm is nested in the forearm, and the other end of the telescopic arm is connected with one end of the cylinder rod of the telescopic arm cylinder, and one end of the cylinder bottom of the telescopic arm cylinder is hinged on one end of the forearm so that the telescopic arm nested in the forearm can be telescoped along the direction of the forearm, one end of the cylinder bottom of the boom cylinder is connected to the base through a hinge ear, one end of the cylinder rod of the boom cylinder is hinged to the inner side of the middle downward part of the boom, one end of the cylinder bottom of the forearm cylinder is connected to the outer side of the middle part of the boom through a hinge ear, and one end of the cylinder rod of the forearm cylinder is hinged to one end of the forearm close to the boom; one end of the connecting rod and one end of the cylinder bottom of the leveling cylinder are simultaneously hinged to one end of the telescopic arm close to the base, and the other end of the connecting rod and one end of the cylinder rod of the leveling cylinder are simultaneously hinged to the front and rear sides of the conveying platform, and the connecting rod, the leveling cylinder and the conveying platform form a triangular frame.

[0007] Preferably, the conveying platform includes a frame, a hydraulic motor, a reducer, a conveyor belt, a long-side transmission shaft and a short-side transmission shaft, wherein the reducer, the long-side transmission shaft and the short-side transmission shaft constitute a transmission assembly, one group of transmission assemblies is a rear transmission mechanism at the rear of the frame, and the other group of transmission assemblies is a front transmission mechanism at the front of the frame, and the rear transmission mechanism and the front transmission mechanism are arranged in opposite directions on the frame, and the front transmission mechanism and the rear transmission mechanism work together to transport the goods from one end to the other end through the conveyor belt;

[0008] The reducers are fixedly connected to the frame, each reducer is provided with a hydraulic motor, a long side transmission shaft and a short side transmission shaft extend from the left and right sides of each reducer respectively, the conveyor belt is sleeved on the long side transmission shaft or the short side transmission shaft, and the conveyor belt is arranged between the long side transmission shaft or the short side transmission shaft at the rear of the frame and the long side transmission shaft or the short side transmission shaft at the front of the frame.

[0009] Preferably, the reducer is connected to the frame by bolts.

[0010] Preferably, the three conveyor belts are arranged between the long side transmission shaft or the short side transmission shaft at the rear of the frame and the long side transmission shaft or the short side transmission shaft at the front of the frame.

[0011] Preferably, the left multi-arm mechanism and the right multi-arm mechanism are installed in parallel on the tail plate of the cabin, and the left multi-arm mechanism and the right multi-arm mechanism are symmetrically arranged on the tail plate of the cabin.

[0012] Preferably, the leveling cylinder is used to adjust the levelness of the conveying platform.

[0013] Preferably, the telescopic arm cylinder is used to complete the extension or retraction action of the telescopic arm relative to the forearm.

[0014] Preferably, the forearm oil cylinder is based on the boom, and the angle between the boom and the forearm is adjusted by extending and retracting the forearm oil cylinder.

[0015] The shape of the boom is an ")" arc; one end of the cylinder rod of the boom cylinder is hinged to the inner side of the middle downward part of the boom arc, and one end of the cylinder bottom of the arm cylinder is connected to the outer side of the middle part of the boom arc through a hinge ear; the shape of the forearm is "1" type, and a telescopic arm cylinder is provided on the outer side of the forearm.

[0016] One end of the telescopic arm close to the base is movably connected to one end of the connecting rod and one end of the cylinder bottom of the leveling oil cylinder.

[0017] The beneficial effects of the utility model are as follows:

[0018] (1) The utility model is a fast unloading device based on a large transport aircraft. The utility model adopts a multi-arm assembly combined with a transmission assembly to drive a conveyor belt rolling structure to perform loading and unloading operations, which can ensure that the loading and unloading tasks are completed quickly and efficiently;

[0019] (2) The utility model is a fast unloading device based on a large transport aircraft. The operator only needs to operate the control button three times to complete the entire unloading process, thereby reducing manpower and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a structural schematic diagram of the utility model in a retracted state;

[0022] Figure 2 This is the front view of the utility model in the retracted state;

[0023] Figure 3 This is a top view of the conveying platform of the utility model;

[0024] Figure 4 It is an axial side view of the conveying platform of the utility model;

[0025] Figure 5 This is the front view of the utility model in the extended state;

[0026] Figure 6 It is an axial side view of the utility model in the extended state;

[0027] Figure 7 This is the front view of the utility model in the lowered state;

[0028] Figure 8 It is an axial side view of the utility model in a lowered state.

[0029] In the figure: 1, cabin tail plate; 2, base; 3, conveying platform; 4, big arm; 5, big arm cylinder; 6, small arm; 7, small arm cylinder; 8, telescopic arm; 9, telescopic arm cylinder; 10, connecting rod; 11, leveling cylinder; 1201, left multi-arm mechanism; 1202, right multi-arm mechanism; 1301, rear transmission mechanism; 1302, front transmission mechanism;

[0030] 31. Frame; 32. Hydraulic motor; 33. Reducer; 34. Conveyor belt; 35. Long side transmission shaft; 36. Short side transmission shaft. DETAILED DESCRIPTION

[0031] 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.

[0032] Example 1

[0033] like Figures 1 to 8As shown, a fast unloading device based on a large transport aircraft described in an embodiment of the utility model is fixedly arranged on the cabin tail plate 1, including a multi-arm assembly and a conveying platform 3, the multi-arm assembly includes a left multi-arm mechanism 1201 and a right multi-arm mechanism 1202 with the same structure, the left multi-arm mechanism 1201 is on the left side of the cabin tail plate 1, and the right multi-arm mechanism 1202 is on the right side of the cabin tail plate 1, and the left multi-arm mechanism 1201 and the right multi-arm mechanism 1202 both include a base 2, a big arm 4, a big arm cylinder 5, a small arm 6, a small arm cylinder 7, a telescopic arm 8, a telescopic arm cylinder 9, a connecting rod 10 and a leveling cylinder 11;

[0034] like Figure 1 and Figure 2 As shown, the base 2 is arranged on the tail plate 1 of the cabin, one end of the boom 4 is hinged to one side of the base 2, the other end of the boom 4 is hinged to one end of the forearm 6, one end of the telescopic arm 8 is nested in the forearm 6, the other end of the telescopic arm 8 is connected to one end of the cylinder rod of the telescopic arm oil cylinder 9, one end of the cylinder bottom of the telescopic arm oil cylinder 9 is hinged to one end of the forearm 6 so that the telescopic arm 8 nested in the forearm 6 can be telescoped along the direction of the forearm 6, one end of the cylinder bottom of the boom oil cylinder 5 is connected to the base 2 through a hinge ear, one end of the cylinder rod of the boom oil cylinder 5 is connected to the middle of the boom 4 The inner side of the lower part is hinged, one end of the cylinder bottom of the forearm cylinder 7 is connected to the outer side of the middle part of the boom 4 through a hinge ear, and one end of the cylinder rod of the forearm cylinder 7 is hinged to the end of the forearm 6 close to the boom 4; one end of the connecting rod 10 and one end of the cylinder bottom of the leveling cylinder 11 are hinged to the end of the telescopic arm 8 close to the base 2 at the same time, and the other end of the connecting rod 10 and one end of the cylinder rod of the leveling cylinder 11 are hinged to the front and rear sides of the conveying platform 3 at the same time, and the connecting rod 10, the leveling cylinder 11 and the conveying platform 3 form a triangular frame.

[0035] The left multi-arm mechanism 1201 and the right multi-arm mechanism 1202 work together to move the conveying platform 3 horizontally into or out of the cabin tail plate 1.

[0036] One end of the cylinder bottom of the telescopic arm cylinder 9 is hinged to one end of the forearm 6, one end of the telescopic arm 8 is nested in the forearm 6, the other end of the telescopic arm 8 is connected to one end of the cylinder rod of the telescopic arm cylinder 9, one end of the cylinder bottom of the telescopic arm cylinder 9 is hinged to the forearm 6, one end of the cylinder rod of the telescopic arm cylinder 9 is connected to the telescopic arm 8. This design allows the telescopic arm 8 nested in the forearm 6 to be telescoped along the direction of the forearm 6.

[0037] like Figure 3 and Figure 4As shown, preferably, the conveying platform 3 includes a frame 31, a hydraulic motor 32, a reducer 33, a conveyor belt 34, a long-side transmission shaft 35 and a short-side transmission shaft 36, wherein the reducer 33, the long-side transmission shaft 35 and the short-side transmission shaft 36 constitute a transmission assembly, one group of transmission assemblies is a rear transmission mechanism 1301 at the rear of the frame 31, and the other group of transmission assemblies is a front transmission mechanism 1302 at the front of the frame 31, the rear transmission mechanism 1301 and the front transmission mechanism 1302 are arranged in opposite directions on the frame 31, and the front transmission mechanism 1302 and the rear transmission mechanism 1301 work together to transport the goods from one end to the other end through the conveyor belt 34;

[0038] The reducers 33 are fixedly connected to the frame 31, and each reducer 33 is provided with a hydraulic motor 32. A long side transmission shaft 35 and a short side transmission shaft 36 extend from the left and right sides of each reducer 33 respectively. The conveyor belt 34 is sleeved on the long side transmission shaft 35 or the short side transmission shaft 36. The conveyor belt 34 is arranged between the long side transmission shaft 35 or the short side transmission shaft 36 at the rear of the frame 31 and the long side transmission shaft 35 or the short side transmission shaft 36 at the front of the frame 31.

[0039] The hydraulic motor 32 drives the reducer 33 to work, and the reducer 33 drives the left and right long side transmission shafts 35 and short side transmission shafts 36 to rotate. The three conveyor belts 34 are mounted on the long side transmission shafts 35 and the short side transmission shafts 36, and are moved by the long side transmission shafts 35 and the short side transmission shafts 36 to transport the goods from one end of the conveying platform 3 to the other end.

[0040] Example 2

[0041] Preferably, the reducer 33 is connected to the frame 31 by bolts.

[0042] Preferably, the three conveyor belts 34 are arranged between the long side transmission shaft 35 or the short side transmission shaft 36 at the rear of the frame 31 and the long side transmission shaft 35 or the short side transmission shaft 36 at the front of the frame 31 .

[0043] Preferably, the left multi-arm mechanism 1201 and the right multi-arm mechanism 1202 are installed in parallel on the nacelle tail panel 1 , and the left multi-arm mechanism 1201 and the right multi-arm mechanism 1202 are symmetrically arranged on the nacelle tail panel 1 .

[0044] Preferably, the leveling cylinder 11 is used to adjust the levelness of the conveying platform 3 .

[0045] Preferably, the telescopic arm cylinder 9 is used to complete the extension or retraction action of the telescopic arm 8 relative to the forearm 6.

[0046] Preferably, the arm cylinder 7 is based on the boom 4, and the angle between the boom 4 and the arm 6 is adjusted by extending and retracting the arm cylinder 7.

[0047] The shape of the boom 4 is an ")" arc; one end of the cylinder rod of the boom cylinder 5 is hinged to the inner side of the middle downward part of the arc of the boom 4, and one end of the cylinder bottom of the arm cylinder 7 is connected to the outer side of the middle part of the arc of the boom 4 through a hinge ear; the shape of the arm 6 is "1", and a telescopic arm cylinder 9 is provided on the outer side of the arm 6.

[0048] One end of the telescopic arm 8 close to the base 2 is movably connected to one end of the connecting rod 10 and one end of the cylinder bottom of the leveling cylinder 11 .

[0049] The telescopic arm 8 is movably connected with the connecting rod 10 and the leveling cylinder 11. When the connecting rod 10 and the leveling cylinder 11 are connected to the conveying platform 3, the conveying platform 3 is horizontally moved into or out of the cabin tail plate 1 due to the gravity of the conveying platform 3 and the fact that the conveying platform 3, the connecting rod 10 and the leveling cylinder 11 form a triangular frame.

[0050] The entire quick unloading device is powered by a motor-driven hydraulic pump, and the electromagnetic proportional valve controls the cylinder movement to complete the specified task.

[0051] The working principle of this utility model:

[0052] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, after the transport plane arrives at the enemy airport and opens the loading and unloading door, the conveying platform 3 is in a retracted state, and the operator extends the conveying platform 3 by operating the control box. Because the relative position of the conveying platform 3 and the cabin tail plate 1 is relatively fixed each time it is extended, the operator only needs to press a button on the control box once, and the electromagnetic proportional valve controls the actions of each cylinder according to the established program settings, specifically the big arm cylinder 5 retracts, the small arm cylinder 7 retracts, the telescopic arm cylinder 9 extends, and the leveling cylinder 11 automatically adjusts according to the posture of the conveying platform 3 to keep it in a horizontal state. That is, the conveying platform 3 can be quickly moved out of the cabin tail plate 1 according to the established path. After moving out, the upper surface of the conveying platform 3 is flush with the upper surface of the cabin tail plate 1, and this position is the equal cargo position;

[0053] After the operator moves the goods to the conveying platform 3, he presses the button on the control box again, and the electromagnetic proportional valve controls the action of each cylinder according to the established program setting. Because the height difference between the tailgate 1 and the ground is relatively fixed after it is opened, the lowering process of the conveying platform 3 can also be programmed in advance, such as Figure 7As shown, the conveying platform 3 is quickly lowered to the ground; the operator operates the button on the control box again, and the conveyor belt rolling mechanism on the conveying platform 3 drags the goods horizontally and transfers them to the ground transfer equipment or places them directly on the ground. At this point, the unloading process is completed. During this period, the operator only needs to operate the control button three times to complete the entire unloading process. The operation of the loading process is the reverse operation of the above process.

[0054] The utility model adopts a multi-arm assembly in combination with a transmission assembly to drive a conveyor belt rolling structure to perform loading and unloading operations, which can ensure that the loading and unloading tasks are completed quickly and efficiently.

[0055] The above shows and describes the basic principles, main features and 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 principles 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. A fast unloading device based on a large transport aircraft, the fast unloading device being fixedly arranged on the tail panel (1) of the cabin, characterized in that: It comprises a multi-arm assembly and a conveying platform (3), wherein the multi-arm assembly comprises a left multi-arm mechanism (1201) and a right multi-arm mechanism (1202) of the same structure, wherein the left multi-arm mechanism (1201) is located on the left side of the cabin tail plate (1), and the right multi-arm mechanism (1202) is located on the right side of the cabin tail plate (1), and the left multi-arm mechanism (1201) and the right multi-arm mechanism (1202) both comprise a base (2), a large arm (4), a large arm cylinder (5), a small arm (6), a small arm cylinder (7), a telescopic arm (8), a telescopic arm cylinder (9), a connecting rod (10), and a leveling cylinder (11); The base (2) is arranged on the tail plate (1) of the engine room, one end of the boom (4) is hinged to one side of the base (2), the other end of the boom (4) is hinged to one end of the forearm (6), one end of the telescopic arm (8) is nested in the forearm (6), the other end of the telescopic arm (8) is connected to one end of the cylinder rod of the telescopic arm oil cylinder (9), one end of the cylinder bottom of the telescopic arm oil cylinder (9) is hinged to one end of the forearm (6) so that the telescopic arm (8) nested in the forearm (6) is telescopic along the direction of the forearm (6), one end of the cylinder bottom of the boom oil cylinder (5) is connected to the base (2) through a hinge ear, one end of the cylinder rod of the boom oil cylinder (5) is connected to the boom ( 4) is hinged on the inner side of the middle downward part, one end of the cylinder bottom of the forearm oil cylinder (7) is connected to the outer side of the middle part of the boom (4) through a hinge ear, and one end of the cylinder rod of the forearm oil cylinder (7) is hinged to the end of the forearm (6) close to the boom (4); one end of the connecting rod (10) and one end of the cylinder bottom of the leveling oil cylinder (11) are hinged to one end of the telescopic arm (8) close to the base (2), and the other end of the connecting rod (10) and one end of the cylinder rod of the leveling oil cylinder (11) are hinged to the front and rear sides of the conveying platform (3), and the connecting rod (10), the leveling oil cylinder (11) and the conveying platform (3) form a triangular frame.

2. A fast unloading device based on a large transport aircraft according to claim 1, characterized in that: The conveying platform (3) comprises a frame (31), a hydraulic motor (32), a reducer (33), a conveyor belt (34), a long-side transmission shaft (35) and a short-side transmission shaft (36); the reducer (33), the long-side transmission shaft (35) and the short-side transmission shaft (36) constitute a transmission assembly; one group of transmission assemblies is a rear transmission mechanism (1301) at the rear of the frame (31); the other group of transmission assemblies is a front transmission mechanism (1302) at the front of the frame (31); the rear transmission mechanism (1301) and the front transmission mechanism (1302) are arranged in opposite directions on the frame (31); and the front transmission mechanism (1302) and the rear transmission mechanism (1301) work together to transport the goods from one end to the other end through the conveyor belt (34); The reducers (33) are fixedly connected to the frame (31), each reducer (33) is provided with a hydraulic motor (32), a long side transmission shaft (35) and a short side transmission shaft (36) are respectively extended from the left and right sides of each reducer (33), the conveyor belt (34) is sleeved on the long side transmission shaft (35) or the short side transmission shaft (36), and the conveyor belt (34) is arranged between the long side transmission shaft (35) or the short side transmission shaft (36) at the rear of the frame (31) and the long side transmission shaft (35) or the short side transmission shaft (36) at the front of the frame (31).

3. A fast unloading device based on a large transport aircraft according to claim 2, characterized in that: The reducer (33) is connected to the frame (31) by bolts.

4. A fast unloading device based on a large transport aircraft according to claim 2, characterized in that: The three conveyor belts (34) are arranged between the long side transmission shaft (35) or the short side transmission shaft (36) at the rear of the frame (31) and the long side transmission shaft (35) or the short side transmission shaft (36) at the front of the frame (31).

5. The rapid unloading device based on a large transport aircraft according to claim 1, characterized in that: The left multi-arm mechanism (1201) and the right multi-arm mechanism (1202) are installed in parallel on the cabin tail plate (1), and the left multi-arm mechanism (1201) and the right multi-arm mechanism (1202) are symmetrically arranged on the cabin tail plate (1).

6. The fast unloading device based on a large transport aircraft according to claim 1, characterized in that: The leveling cylinder (11) is used to adjust the horizontality of the conveying platform (3).

7. The fast unloading device based on a large transport aircraft according to claim 1, characterized in that: The telescopic arm oil cylinder (9) is used to complete the extension or retraction action of the telescopic arm (8) relative to the forearm (6).

8. The rapid unloading device based on a large transport aircraft according to claim 1, characterized in that: The forearm oil cylinder (7) is based on the boom (4), and the angle between the boom (4) and the forearm (6) is adjusted by extending and retracting the forearm oil cylinder (7).

9. The fast unloading device based on a large transport aircraft according to claim 1, characterized in that: The shape of the upper arm (4) is an arc-shaped. One end of the cylinder rod of the boom cylinder (5) is hinged to the inner side of the middle downward arc portion of the boom (4), and one end of the cylinder bottom of the forearm cylinder (7) is connected to the outer side of the middle arc portion of the boom (4) through a hinge ear; the forearm (6) is in the shape of "1", and a telescopic arm cylinder (9) is provided on the outer side of the forearm (6).

10. The fast unloading device based on a large transport aircraft according to claim 1, characterized in that: One end of the telescopic arm (8) close to the base (2) is movably connected to one end of the connecting rod (10) and one end of the cylinder bottom of the leveling cylinder (11).

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