Helicopter tail cant beam maintenance device

Abstract

The utility model belongs to the technical field of helicopter maintenance, and particularly relates to a helicopter tail cant beam maintenance device which comprises a bottom plate, universal wheels are installed at the four corners of the bottom end of the bottom plate, lifting assemblies are arranged on the two sides of the top end of the bottom plate, a lifting plate is installed between the two lifting assemblies, and extension plates are installed on the two sides of the lifting plate. And an electric hydraulic telescopic rod is installed in the middle of the bottom end of the extension plate, a supporting seat is installed at the bottom of the electric hydraulic telescopic rod, and reinforcing plates are symmetrically welded between the two lifting assemblies. Through use of the two lifting assemblies, the height of a lifting plate can be adjusted, after the lifting plate is adjusted, a worker installs extension plates on the two sides of the lifting plate, the operation area of the device can be increased, the worker can conveniently place a maintenance tool and conduct maintenance operation, and after the extension plates are installed, electric hydraulic telescopic rods are installed, so that the work efficiency is improved. And the extension plate can be supported, and stable use of the extension plate is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of helicopter maintenance, and in particular relates to a helicopter tail beam maintenance device. Background Art

[0002] Helicopters are dual-use military and civilian products and can be widely used in transportation, patrol, tourism, rescue and other fields. As an important component of the helicopter, the tail beam plays the role of a vertical tail surface. When repairing the tail beam of the helicopter, due to the height of the helicopter, the staff needs to set up a ladder for maintenance. Since the width of the climbing column of the ladder is not enough, the feet of the maintenance personnel cannot be fully supported, and the stability is insufficient. At the same time, the climbing column will exert local pressure on the soles of the feet. When stepping on the soles for a long time, the soles of the maintenance personnel are prone to pain. There are no additional baffles around the ladder. When the maintenance personnel step unsteadily, they are prone to fall. Therefore, there are certain safety hazards in the operation. On the other hand, it is also very laborious for the staff to carry a tool box to climb, and the weight of the tool box will also cause the center of gravity of the maintenance personnel to shift, resulting in unstable standing. Therefore, a helicopter tail beam maintenance device is proposed here to solve the above problems.

[0003] The Chinese invention patent with publication number CN218639632U ​​discloses a helicopter tail beam maintenance device, which has the beneficial effect that the helicopter tail beam maintenance device can drive the lead screw to rotate by starting the first servo motor, and the lead screw can drive the screw sleeve, so that the screw sleeve can drive the bearing plate to rise and fall, which is convenient for workers to carry tools for lifting and falling, and improves maintenance efficiency;

[0004] However, the device still has the following disadvantages when in use: when the staff stands on the load-bearing plate to perform work, the space available for movement is small, and there is a lack of space to properly place the maintenance tools, resulting in poor use effect. Based on this, the present invention improves the above-mentioned device. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the utility model provides a helicopter tail beam maintenance device, which has the characteristics of good use performance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a helicopter tail beam maintenance device, comprising a bottom plate, universal wheels are installed at the four corners of the bottom end of the bottom plate, lifting components are arranged on both sides of the top end of the bottom plate, a lifting plate is installed between the two lifting components, extension plates are installed on both sides of the lifting plate, an electric hydraulic telescopic rod is installed in the middle of the bottom end of the extension plate, and a support seat is installed at the bottom of the electric hydraulic telescopic rod;

[0007] Reinforcing plates are symmetrically welded between the two lifting components. In the middle of one side of the reinforcing plate, a T-shaped clamping plate is installed. In the middle of one side of the T-shaped clamping plate, a semi-circular groove is opened. Near the semi-circular groove on one side of the top end of the T-shaped clamping plate, a U-shaped clamping plate is installed.

[0008] As a preferred technical solution of a helicopter tail inclined beam maintenance device of the present utility model, the lifting component includes a U-shaped bracket, a screw elevator, a reduction motor, and a transmission block;

[0009] On both sides of the top end of the bottom plate, U-shaped brackets are symmetrically welded. In the middle of the U-shaped bracket, a screw elevator is installed. On one side of the outer wall of the screw elevator, a transmission block is installed. On both sides of the top end of the bottom plate, near the corresponding screw elevators, reduction motors are installed. The output shaft of the reduction motor is fixedly connected to the input shaft of the screw elevator.

[0010] As a preferred technical solution of a helicopter tail inclined beam maintenance device of the present utility model, on both sides of the inner wall of the U-shaped bracket, guiding slide bars are symmetrically arranged. On both sides of the lifting plate, guiding sliding grooves are symmetrically opened. The guiding sliding grooves and the guiding slide bars are adapted to each other.

[0011] As a preferred technical solution of a helicopter tail inclined beam maintenance device of the present utility model, in the middle of one end of the U-shaped bracket, a connecting plate is welded. At equal intervals on one end of the connecting plate, reinforcing rods are welded. One end of the reinforcing rod is welded to the bottom plate.

[0012] As a preferred technical solution of a helicopter tail inclined beam maintenance device of the present utility model, in the middle of both sides of the lifting plate, positioning slots are opened. Inside the positioning slots, first clamping holes are symmetrically opened.

[0013] As a preferred technical solution of a helicopter tail inclined beam maintenance device of the present utility model, in the middle of one side of the extension plate, a positioning plug is arranged. On the top end of the positioning plug, second clamping holes are symmetrically opened. In the middle of the bottom end of the extension plate, a connecting clamping pipe is welded.

[0014] As a preferred technical solution of a helicopter tail inclined beam maintenance device of the present utility model, the positioning plug and the positioning slot are adapted to each other. The second clamping holes and the first clamping holes are adapted to each other. Inside the first clamping holes and the adjacent second clamping holes, pins are inserted. One end of the extending rod of the electro-hydraulic telescopic rod is located inside the connecting clamping pipe.

[0015] As a preferred technical solution of a helicopter tail inclined beam maintenance device of the present utility model, between the bottoms of the two U-shaped brackets, reinforcing plates are symmetrically welded. In the middle of one side of the reinforcing plate, four first mounting holes are opened. In the middle of one side of the T-shaped clamping plate, four second mounting holes are opened. The four second mounting holes and the four first mounting holes are adapted to each other. Inside the first mounting holes and the adjacent second mounting holes, first fixing bolts penetrate through.

[0016] As a preferred technical solution for a helicopter tail beam maintenance device of the utility model, a No. 1 positioning hole is symmetrically opened at the top of the T-shaped pallet near the semicircular groove, and the number of the No. 1 positioning holes is four. A No. 2 positioning hole is symmetrically opened at the top of the U-shaped pallet, and the number of the No. 2 positioning holes is four. The four No. 2 positioning holes and the four No. 1 positioning holes are adapted to each other, and a No. 2 fixing bolt runs through the No. 1 positioning hole and the adjacent No. 2 positioning hole.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] When the utility model is in use, the height of the lifting plate can be adjusted by using two sets of lifting components. After the lifting plate is adjusted, the staff can increase the working area of ​​the device by installing extension plates on both sides of the lifting plate, which is convenient for the staff to place tools and perform maintenance work. After the extension plate is installed, the extension plate can be supported by installing an electric hydraulic telescopic rod, which is convenient for the stable use of the extension plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a bottom view of the utility model;

[0022] Figure 3 This is an exploded view of the installation of the lifting plate of the utility model;

[0023] Figure 4 This is an exploded view of the installation of the electric hydraulic telescopic rod of the utility model;

[0024] Figure 5 This is an exploded view of the installation of the U-shaped pallet of the utility model.

[0025] In the figure: 1, bottom plate; 2, universal wheel; 3, U-shaped bracket; 4, screw lift; 5, reduction motor; 6, transmission block; 7, lifting plate; 8, guiding slide bar; 9, guiding chute; 10, positioning slot; 11, first card hole; 12, extension plate; 13, positioning plug board; 14, second card hole; 15, bolt; 16, electric hydraulic telescopic rod; 17, support seat; 18, connecting card tube; 19, T-shaped card plate; 20, semi-circular groove; 21, U-shaped card plate; 22, reinforcing plate; 23, first mounting hole; 24, second mounting hole; 25, first fixing bolt; 26, first positioning hole; 27, second positioning hole; 28, second fixing bolt. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0027] Please refer to Figures 1 to 5 , the present invention provides the following technical solutions: A helicopter tail skew beam maintenance device includes a bottom plate 1. Universal wheels 2 are welded and installed at the four corners of the bottom end of the bottom plate 1. Lifting components are arranged on both sides of the top end of the bottom plate 1. The lifting components include a U-shaped bracket 3, a screw lift 4, a reduction motor 5 and a transmission block 6. U-shaped brackets 3 are symmetrically welded on both sides of the top end of the bottom plate 1. A screw lift 4 is installed in the middle of the U-shaped bracket 3. Guiding slide bars 8 are symmetrically arranged on both sides of the inner wall of the U-shaped bracket 3. A connecting plate is welded in the middle of one end of the U-shaped bracket 3. Reinforcing rods are welded at equal intervals at one end of the connecting plate. One end of the reinforcing rod is welded to the bottom plate 1, which can improve the structural strength of the U-shaped bracket 3 and facilitate the stable use of the U-shaped bracket 3. A transmission block 6 is installed on one side of the outer wall of the screw lift 4. Reduction motors 5 are fixedly installed on both sides of the top end of the bottom plate 1 near the corresponding screw lifts 4. The output shaft of the reduction motor 5 is fixedly connected to the input shaft of the screw lift 4. A lifting plate 7 is fixedly installed above the two transmission blocks 6;

[0028] On both sides of the lifting plate 7, guiding sliding grooves 9 are symmetrically arranged. The guiding sliding grooves 9 and the guiding sliding strips 8 are adapted to each other, which can limit the movement of the lifting plate 7. In the middle of both sides of the lifting plate 7, positioning slots 10 are arranged. Inside the positioning slots 10, first clamping holes 11 are symmetrically arranged. On both sides of the lifting plate 7, extension plates 12 are installed. In the middle of one side of the extension plate 12, a positioning plug 13 is arranged. The positioning plug 13 and the positioning slot 10 are adapted to each other. On the top of the positioning plug 13, second clamping holes 14 are symmetrically arranged. The second clamping holes 14 and the first clamping holes 11 are adapted to each other. Inside the first clamping holes 11 and the adjacent second clamping holes 14, a plug pin 15 is inserted, which can fix the extension plate 12 and is convenient for the installation and use of the extension plate 12. In the middle of the bottom end of the extension plate 12, a connecting clamping pipe 18 is welded. Below the extension plate 12, an electric hydraulic telescopic rod 16 is installed. One end of the extending rod of the electric hydraulic telescopic rod 16 is located inside the connecting clamping pipe 18, which is convenient for the connection between the electric hydraulic telescopic rod 16 and the extension plate 12. A support seat 17 is installed at the bottom of the electric hydraulic telescopic rod 16;

[0029] Between the bottoms of the two U-shaped brackets 3, a reinforcing plate 22 is symmetrically welded. In the middle of one side of the reinforcing plate 22, four first mounting holes 23 are arranged. Near the four first mounting holes 23 in the middle of one side of the reinforcing plate 22, a T-shaped clamping plate 19 is arranged. In the middle of one side of the T-shaped clamping plate 19, four second mounting holes 24 are arranged. The four second mounting holes 24 and the four first mounting holes 23 are adapted to each other. Inside the first mounting holes 23 and the adjacent second mounting holes 24, a first fixing bolt 25 passes through, which is convenient for the fixed use of the T-shaped clamping plate 19. In the middle of the other side of the T-shaped clamping plate 19, a semi-circular groove 20 is arranged. Near the semi-circular groove 20 at the top of the T-shaped clamping plate 19, first positioning holes 26 are symmetrically arranged. The number of the first positioning holes 26 is four. On one side near the semi-circular groove 20 at the top of the T-shaped clamping plate 19, a U-shaped clamping plate 21 is arranged. At the top of the U-shaped clamping plate 21, second positioning holes 27 are symmetrically arranged. The number of the second positioning holes 27 is four. The four second positioning holes 27 and the four first positioning holes 26 are adapted to each other. Inside the first positioning holes 26 and the adjacent second positioning holes 27, a second fixing bolt 28 passes through, which is convenient for the installation and use of the U-shaped clamping plate 21. The inner wall width of the U-shaped clamping plate 21 is the same as the inner diameter of the semi-circular groove 20. After the U-shaped clamping plate 21 and the T-shaped clamping plate 19 are spliced and fixed, a circular hole is formed. The electric hydraulic telescopic rod 16 is located inside the circular hole. The input end of the reduction motor 5 and the input end of the electric hydraulic telescopic rod 16 are both electrically connected to the output end of the external control circuit. The reduction motor 5 and the electric hydraulic telescopic rod 16 are both existing technical equipment, and their specific structures and working principles are not described in detail here.

[0030] The working principle and use process of the utility model are as follows: after the device is pushed to the maintenance site, the maintenance staff stands on the lifting plate 7, and then the staff around the device start the two reduction motors 5, the reduction motors 5 work to drive the spiral lift 4 to rotate, the rotation of the spiral lift 4 drives the transmission block 6 to move upward, the two transmission blocks 6 move upward to drive the lifting plate 7 to rise, and the maintenance staff moves synchronously with the lifting plate 7;

[0031] When the maintenance worker moves to a suitable height, the workers around the device install the extension plates 12 on both sides of the lifting plate 7, and then install the T-shaped card plate 19. After the T-shaped card plate 19 is installed, the worker installs the electric hydraulic telescopic rod 16 and installs the U-shaped card plate 21 to lock and fix the electric hydraulic telescopic rod 16. Then the worker starts the electric hydraulic telescopic rod 16 until the output end of the electric hydraulic telescopic rod 16 contacts the extension plate 12.

[0032] By installing and using the extension plate 12, the working area of ​​the maintenance staff can be increased, making it easier for the staff to place tools and perform maintenance work.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A helicopter tail beam maintenance device, comprising a bottom plate (1), characterized in that: Universal wheels (2) are installed at the four corners of the bottom end of the bottom plate (1). Lifting components are arranged on both sides of the top end of the bottom plate (1). A lifting plate (7) is installed between the two lifting components. Extension plates (12) are installed on both sides of the lifting plate (7). An electric hydraulic telescopic rod (16) is installed in the middle of the bottom end of the extension plate (12). A support seat (17) is installed at the bottom of the electric hydraulic telescopic rod (16). Reinforcing plates (22) are symmetrically welded between the two lifting components. A T-shaped clamping plate (19) is installed in the middle of one side of the reinforcing plate (22). A semi-circular groove (20) is opened in the middle of one side of the T-shaped clamping plate (19). A U-shaped clamping plate (21) is installed at one side near the semi-circular groove (20) at the top end of the T-shaped clamping plate (19).

2. A helicopter tail beam maintenance device according to claim 1, characterized in that: The lifting component includes a U-shaped bracket (3), a screw lift (4), a reduction motor (5) and a transmission block (6). U-shaped brackets (3) are symmetrically welded on both sides of the top end of the bottom plate (1). A screw lift (4) is installed in the middle of the U-shaped bracket (3). A transmission block (6) is installed on one side of the outer wall of the screw lift (4). Reduction motors (5) are installed on both sides of the top end of the bottom plate (1) near the corresponding screw lifts (4). The output shaft of the reduction motor (5) is fixedly connected to the input shaft of the screw lift (4).

3. A helicopter tail beam maintenance device according to claim 2, characterized in that: Guide slide bars (8) are symmetrically arranged on both sides of the inner wall of the U-shaped bracket (3). Guide chutes (9) are symmetrically opened on both sides of the lifting plate (7). The guide chutes (9) and the guide slide bars (8) are adapted to each other.

4. A helicopter tail beam maintenance device according to claim 2, characterized in that: A connecting plate is welded in the middle of one end of the U-shaped bracket (3). Reinforcing rods are welded at equal intervals at one end of the connecting plate. One end of the reinforcing rod is welded to the bottom plate (1).

5. A helicopter tail beam maintenance device according to claim 2, characterized in that: Positioning slots (10) are opened in the middle of both sides of the lifting plate (7). First clamping holes (11) are symmetrically opened inside the positioning slots (10).

6. A helicopter tail beam maintenance device according to claim 5, characterized in that: A positioning insertion plate (13) is arranged in the middle of one side of the extension plate (12). Second clamping holes (14) are symmetrically opened at the top end of the positioning insertion plate (13). A connecting clamping pipe (18) is welded in the middle of the bottom end of the extension plate (12).

7. A helicopter tail beam maintenance device according to claim 6, characterized in that: The positioning insertion plate (13) and the positioning slot (10) are adapted to each other. The second clamping holes (14) and the first clamping holes (11) are adapted to each other. Pins (15) are inserted into the first clamping holes (11) and the adjacent second clamping holes (14). One end of the extending rod of the electric hydraulic telescopic rod (16) is located inside the connecting clamping pipe (18).

8. A helicopter tail beam maintenance device according to claim 2, characterized in that: Reinforcing plates (22) are symmetrically welded between the bottoms of the two U-shaped brackets (3). Four first mounting holes (23) are opened in the middle of one side of the reinforcing plate (22). Four second mounting holes (24) are opened in the middle of one side of the T-shaped clamping plate (19). The four second mounting holes (24) and the four first mounting holes (23) are adapted to each other. First fixing bolts (25) penetrate through the first mounting holes (23) and the adjacent second mounting holes (24).

9. A helicopter tail beam maintenance device according to claim 8, characterized in that: The top of the T-shaped card plate (19) is symmetrically provided with a No. 1 positioning hole (26) near the semicircular groove (20), and the number of the No. 1 positioning holes (26) is four. The top of the U-shaped card plate (21) is symmetrically provided with a No. 2 positioning hole (27), and the number of the No. 2 positioning holes (27) is four. The four No. 2 positioning holes (27) and the four No. 1 positioning holes (26) are matched with each other, and the No. 1 positioning hole (26) and the adjacent No. 2 positioning hole (27) are penetrated by a No. 2 fixing bolt (28).

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