Airplane cargo hold PDU test instrument

Abstract

The utility model relates to the technical field of airplane cargo hold PDU testing, and discloses an airplane cargo hold PDU testing instrument, which comprises an airplane cargo hold PDU and two mounting frames, a conveyor belt is rotatably connected in the mounting frames, a top plate is fixed at the tops of the two mounting frames, a second electric push rod is embedded and fixed at the top of the top plate, and a lifting plate is fixed at the output end of the second electric push rod. A pressing rod slidably penetrates through the lifting plate, an end plate is fixed to the top end of the pressing rod, a pressing plate is fixed to the bottom end of the pressing rod, a first spring is fixed between the end plate and the lifting plate, a bottom frame is fixed to the bottoms of the two installation frames, a transmission plate capable of freely ascending and descending is movably connected to the bottom frame, and two clamping plates are fixedly installed on the upper surface of the transmission plate. According to the utility model, through the mutual cooperation of the lifting plate, the transmission plate, the clamping plate and the lifting plate, the automatic compression resistance test of the airplane cargo hold PDU is realized, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft cargo hold PDU testing, and more specifically, to an aircraft cargo hold PDU testing instrument. Background Art

[0002] Aircraft cargo hold PDU (hereinafter referred to as PDU) drive assembly is designed for aircraft of various models and configurations. The PDU drive assembly provides automatic movement of automatic containers or pallets during ground loading and unloading operations. The assembly is usually installed in the lower leaf of a wide-body commercial passenger aircraft or in the main deck cargo hold of a cargo aircraft. During the production process of aircraft cargo hold PDU, it is usually subjected to pressure resistance testing;

[0003] When in use, the existing aircraft cargo hold PDU compression test equipment basically transports the aircraft cargo hold PDU through a traditional conveyor belt, and it is necessary to manually move the aircraft cargo hold PDU on the conveyor belt to the bottom of the test equipment. When the aircraft cargo hold PDU test is completed, it is necessary to manually put the aircraft cargo hold PDU back on the conveyor belt. This test method has a low degree of automation and high labor costs, which reduces the efficiency of the compression test of the aircraft cargo hold PDU. Based on this, the utility model designs an aircraft cargo hold PDU test instrument to solve the above problems. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an aircraft cargo hold PDU testing instrument to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aircraft cargo hold PDU testing instrument, comprising an aircraft cargo hold PDU and two installation frames, wherein a conveyor belt is rotatably connected in the installation frames, a top plate is fixed on the top of the two installation frames, a second electric push rod is embedded and fixed on the top of the top plate, a lifting plate is fixed on the output end of the second electric push rod, a pressing rod is fixed on the lifting plate for sliding through, the top of the pressing rod is fixed with an end plate, the bottom end of the pressing rod is fixed with a pressing plate, a first spring is fixed between the end plate and the lifting plate, a bottom frame is fixed at the bottom of the two installation frames, a transmission plate that can be freely lifted and lowered is movably connected on the bottom frame, two clamping plates are fixedly installed on the upper surface of the transmission plate, a first slide groove is opened on one side of the clamping plate, a buffer plate is slidably matched in the first slide groove, a rotating roller is rotatably connected in the buffer plate, and a second spring is fixed between one side of the buffer plate and the low wall in the first slide groove.

[0006] As a preferred technical solution of the utility model, a second slide groove is opened on the upper surface of the transmission plate, a slider is slidably fitted in the second slide groove, the bottom end of the clamping plate is fixed on the upper surface of the slider, the clamping plate is located between the two mounting frames, and the aircraft cargo hold PDU is located on the upper surface of the conveyor belt.

[0007] As a preferred technical solution of the utility model, a threaded screw is rotatably connected in the second slide groove, the threaded screw passes through the slider and is threadedly connected to the slider, a motor is fixed to one end of the transmission plate, and the output end of the motor is fixedly connected to one end of the threaded screw through a coupling.

[0008] As a preferred technical solution of the utility model, a lifting plate is fixed to the lower surface of the transmission plate, a third electric push rod is fixed to the bottom of the bottom frame, and the output end of the third electric push rod is fixedly connected to the lifting plate.

[0009] As a preferred technical solution of the utility model, four guide rods are fixed to the upper surface of the bottom frame, and the guide rods penetrate the lifting plate and are slidably matched with the lifting plate.

[0010] As a preferred technical solution of the utility model, a side panel is fixed on one side of the two mounting frames, a first electric push rod is fixed on the upper surface of the side panel, a push plate is fixed on the output end of the first electric push rod, a rubber pad is fixed on the lower surface of the pressing plate, and the same rubber pad is fixed on the side surface of the rotating roller.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] When the aircraft cargo hold PDU moves to just below the lifting plate, the conveyor belt stops rotating, and the transmission plate is pushed up by the third electric push rod. The clamping plates on the transmission plate can clamp and fix the two sides of the aircraft cargo hold PDU, and the first electric push rod pushes the push plate to clamp the other two sides of the aircraft cargo hold PDU. At this time, the second electric push rod pushes the lifting plate to descend, and the pressing plate presses the aircraft cargo hold PDU, thereby realizing a rapid pressure resistance test of the aircraft cargo hold PDU. After the test is completed, the clamping and fixing of the aircraft cargo hold PDU is removed, and the conveyor belt rotates here, so that the aircraft cargo hold PDU can continue to be transmitted with the conveyor belt. The setting of the second spring can avoid excessive clamping of the aircraft cargo hold PDU by the rotating roller, thereby realizing an automated pressure resistance test of the aircraft cargo hold PDU and improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of an aircraft cargo hold PDU testing instrument of the utility model;

[0014] Figure 2 This is a structural schematic diagram of the lifting plate of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the utility model when the bottom frame and the transmission plate are connected;

[0016] Figure 4 It is a cross-sectional view of the transmission plate of the utility model.

[0017] In the figure: 1. mounting frame; 2. conveyor belt; 3. side plate; 4. first electric push rod; 5. push plate; 6. top plate; 7. second electric push rod; 8. lifting plate; 9. bottom frame; 10. aircraft cargo hold PDU; 11. pressing rod; 12. end plate; 13. first spring; 14. pressing plate; 15. rubber pad; 16. lifting plate; 17. transmission plate; 18. clamping plate; 19. guide rod; 20. third electric push rod; 21. first slide groove; 22. buffer plate; 23. second spring; 24. rotating roller; 25. motor; 26. second slide groove; 27. threaded screw; 28. slider. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figures 1 to 4 As shown, the utility model provides an aircraft cargo hold PDU testing instrument, including an aircraft cargo hold PDU 10 and two installation frames 1, a conveyor belt 2 is rotatably connected in the installation frame 1, a top plate 6 is fixed on the top of the two installation frames 1, a second electric push rod 7 is embedded and fixed on the top of the top plate 6, a lifting plate 8 is fixed on the output end of the second electric push rod 7, a pressing rod 11 is slidably penetrated on the lifting plate 8, an end plate 12 is fixed on the top of the pressing rod 11, a pressing plate 14 is fixed on the bottom end of the pressing rod 11, a first spring 13 is fixed between the end plate 12 and the lifting plate 8, a bottom frame 9 is fixed at the bottom of the two installation frames 1, a transmission plate 17 that can be freely lifted and lowered is movably connected on the bottom frame 9, two clamping plates 18 are fixedly installed on the upper surface of the transmission plate 17, a first slide groove 21 is opened on one side of the clamping plate 18, a buffer plate 22 is slidably matched in the first slide groove 21, and the buffer plate 22 The inner rotation is connected with a rotating roller 24, and a second spring 23 is fixed between one side of the buffer plate 22 and the inner lower wall of the first slide groove 21. The transmission plate 17 is lifted by the third electric push rod 20, and the clamping plate 18 on the transmission plate 17 can clamp and fix the two sides of the aircraft cargo compartment PDU 10. At this time, the second electric push rod 7 pushes the lifting plate 8 down, and the pressing plate 14 presses the aircraft cargo compartment PDU, so as to realize the rapid compression test of the aircraft cargo compartment PDU;

[0020] Among them, a second slide groove 26 is opened on the upper surface of the transmission plate 17, and a slider 28 is slidably matched in the second slide groove 26. The bottom end of the clamping plate 18 is fixed on the upper surface of the slider 28. The clamping plate 18 is located between the two installation frames 1, and the aircraft cargo hold PDU10 is located on the upper surface of the conveyor belt 2. A threaded screw 27 is rotatably connected in the second slide groove 26. The threaded screw 27 passes through the slider 28 and is threadedly connected to the slider 28. A motor 25 is fixed to one end of the transmission plate 17. The output end of the motor 25 is fixedly connected to one end of the threaded screw 27 through a coupling. The motor 25 drives the threaded screw 27 to rotate, and the threaded screw 27 drives the slider 28 to rotate. The clamping plate 18 approaches each other with the slider 28, and the rotating roller 24 clamps and fixes the two sides of the aircraft cargo hold PDU10. The buffer plate 22 slides into the first slide groove 21, and the second spring 23 contracts to prevent the aircraft cargo hold PDU10 from being damaged due to excessive clamping.

[0021] Among them, a lifting plate 16 is fixed to the lower surface of the transmission plate 17, a third electric push rod 20 is fixed to the bottom of the bottom frame 9, the output end of the third electric push rod 20 is fixedly connected to the lifting plate 16, and four guide rods 19 are fixed to the upper surface of the bottom frame 9. The guide rods 19 penetrate the lifting plate 16 and slide with the lifting plate 16. The lifting plate 16 is pushed up by the third electric push rod 20. The sliding cooperation between the guide rods 19 and the lifting plate 16 can make the transmission plate 17 stably lift and lower vertically;

[0022] Among them, a side panel 3 is fixed on one side of the two mounting frames 1, a first electric push rod 4 is fixed on the upper surface of the side panel 3, a push plate 5 is fixed on the output end of the first electric push rod 4, a rubber pad 15 is fixed on the lower surface of the pressing plate 14, and the same rubber pad 15 is fixed on the side surface of the rotating roller 24. The first electric push rod 4 pushes the push plate 5 to clamp the other two sides of the aircraft cargo hold PDU 10. The setting of the rubber pad 15 can prevent the pressing plate 14 and the rotating roller 24 from clamping the aircraft cargo hold PDU 10.

[0023] The working principle and use process of this utility model:

[0024] During use, a number of aircraft cargo hold PDU10 are equidistantly arranged just above the conveyor belt 2. When the aircraft cargo hold PDU10 moves to just below the lifting plate 8, the conveyor belt 2 stops driving, and the third electric push rod 20 pushes the lifting plate 16 up, so that the two clamping plates 18 pass through between the two conveyor belts 2, and the two clamping plates 18 are located on both sides of the aircraft cargo hold PDU10. At this time, the motor 25 drives the threaded screw 27 to rotate, and the threaded screw 27 drives the slider 28 to rotate. The clamping plates 18 approach each other with the slider 28, and the rotating rollers 24 clamp and fix the two sides of the aircraft cargo hold PDU10, and the buffer plate 22 slides into the first slide groove 21, and the second spring 23 Contraction, to prevent the aircraft cargo hold PDU 10 from being damaged due to excessive clamping, the first electric push rod 4 drives the push plate 5 to clamp the other two sides of the aircraft cargo hold PDU 10, the second electric push rod 7 pushes the lifting plate 8 down, and the pressing plate 14 presses the aircraft cargo hold PDU to achieve a rapid compression test of the aircraft cargo hold PDU. During this process, the end plate 12 slides upward and the first spring 13 is stretched. After the test is completed, the clamping of the aircraft cargo hold PDU 10 is removed, and the conveyor belt 2 rotates here, so that the aircraft cargo hold PDU 10 can continue to be transmitted with the conveyor belt 2. The setting of the second spring 23 can prevent the rotating roller 24 from excessively clamping the aircraft cargo hold PDU 10.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aircraft cargo hold PDU test instrument, characterized by: The invention comprises an aircraft cargo hold PDU (10) and two installation frames (1), wherein a conveyor belt (2) is rotatably connected inside the installation frames (1), a top plate (6) is fixed on the top of the two installation frames (1), a second electric push rod (7) is embedded and fixed on the top of the top plate (6), a lifting plate (8) is fixed on the output end of the second electric push rod (7), a pressing rod (11) is slidably penetrated on the lifting plate (8), an end plate (12) is fixed on the top end of the pressing rod (11), and a bottom end of the pressing rod (11) is fixed on the bottom end of the pressing rod (11). A pressing plate (14) is fixedly provided, a first spring (13) is fixed between the end plate (12) and the lifting plate (8), a bottom frame (9) is fixed at the bottom of the two mounting frames (1), a freely liftable transmission plate (17) is movably connected to the bottom frame (9), two clamping plates (18) are fixedly installed on the upper surface of the transmission plate (17), a first slide groove (21) is provided on one side of the clamping plate (18), a buffer plate (22) is slidably fitted in the first slide groove (21), a rotating roller (24) is rotatably connected in the buffer plate (22), and a second spring (23) is fixed between one side of the buffer plate (22) and the lower wall in the first slide groove (21).

2. The aircraft cargo hold PDU test instrument according to claim 1, characterized in that: The transmission plate (17) has a second slide groove (26) on its upper surface, a slider (28) is slidably engaged in the second slide groove (26), the bottom end of the clamping plate (18) is fixed to the upper surface of the slider (28), the clamping plate (18) is located between the two mounting frames (1), and the aircraft cargo hold PDU (10) is located on the upper surface of the conveyor belt (2).

3. The aircraft cargo hold PDU test instrument according to claim 2, characterized in that: A threaded screw (27) is rotatably connected in the second slide groove (26), and the threaded screw (27) passes through the slider (28) and is threadedly connected to the slider (28). A motor (25) is fixed to one end of the transmission plate (17), and an output end of the motor (25) is fixedly connected to one end of the threaded screw (27) via a coupling.

4. The aircraft cargo hold PDU test instrument according to claim 1, characterized in that: A lifting plate (16) is fixed to the lower surface of the transmission plate (17), a third electric push rod (20) is fixed to the inner bottom of the bottom frame (9), and an output end of the third electric push rod (20) is fixedly connected to the lifting plate (16).

5. The aircraft cargo hold PDU test instrument according to claim 4, characterized in that: Four guide rods (19) are fixed to the upper surface of the bottom frame (9), and the guide rods (19) penetrate the lifting plate (16) and are slidably matched with the lifting plate (16).

6. The aircraft cargo hold PDU test instrument according to claim 1, characterized in that: A side plate (3) is fixed to one side of each of the two mounting frames (1); a first electric push rod (4) is fixed to the upper surface of the side plate (3); a push plate (5) is fixed to the output end of the first electric push rod (4); a rubber pad (15) is fixed to the lower surface of the pressing plate (14); and a similar rubber pad (15) is fixed to the side surface of the rotating roller (24).

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