Helicopter horizontal tail rotation angle measuring tool

Abstract

The utility model relates to the technical field of helicopter detection, in particular to a helicopter horizontal tail rotation angle measuring tool which comprises a vertically arranged sleeve plate, a rotation angle measuring device used for measuring a horizontal tail rotation angle and a sliding plate used for supporting and clamping, sleeve shells are arranged on the outer sides of the two ends of the sleeve plate, long bolts are arranged in the sleeve shells, and the long bolts are connected with the sliding plate. A long bolt is arranged on the right side of the sleeve shell, one end of the long bolt is in threaded connection with the sleeve plate, and the ends, far away from each other, of the right sides of the two sleeve shells are fixedly connected with a fixing plate respectively, and the sleeve plate, the sleeve shell, the long bolt, the fixing plate, the rubber frame, the corner measuring device, the fixing shell, the sliding plate, the limiting plate, the sliding rod, the spring, the sliding groove and the rubber sleeve are arranged; the sleeve plate and the sleeve shell can be directly installed on one side of the vertical tail of the helicopter through long bolts, the fixing plate is prevented from falling off from the vertical tail of the helicopter, clamping can be carried out at multiple points on the arc-shaped vertical tail of the helicopter, and the device can adapt to rotation angle detection of horizontal tails of helicopters of different models.

Description

Technical Field

[0001] The utility model relates to the technical field of helicopter detection, in particular to a helicopter horizontal tail turning angle measuring tool. Background Art

[0002] As one of the most distinctive creations of aviation technology in the 20th century, helicopters have greatly expanded the application scope of aircraft. Helicopters are typical dual-use products that can be widely used in transportation, patrol, tourism, rescue and other fields. During the production and maintenance of helicopters, in order to ensure the stability of helicopter operation, the helicopter needs to be tested as a whole. In order to ensure the stability of helicopter flight, the horizontal tail of the helicopter needs to be tested using an angle measurement tool.

[0003] When using a traditional helicopter horizontal tail angle measurement tool, the angle of the helicopter horizontal tail is usually detected and calculated by directly taking a side photo. At this time, the detection tool is usually held at a distance from the helicopter or placed on the ground with an adjusted height for long-distance detection. Due to the long distance, the measurement is inaccurate during the shooting process. Therefore, a helicopter horizontal tail angle measurement tool is proposed to address the above problem. Utility Model Content

[0004] The utility model aims to provide a helicopter horizontal tail angle measuring tool to solve the problem that long-distance shooting detection is required when detecting the helicopter horizontal tail, resulting in inaccurate detection.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The cam is provided with a plurality of sleeves, and a plurality of sleeves are provided at the outer sides of the sleeve, and a plurality of sleeves are provided at the sleeves, and a plurality of sleeves are provided at the sleeves.

[0007] Preferably, the angle measuring device includes a measuring body, a damping swivel, a clamping plate and a spirit level. The spirit level is fixedly connected to the top center of the measuring body, the front and rear ends of the measuring body are fixedly connected to the damping swivel, a clamping plate is installed in the damping swivel, and the outer side of the clamping plate is tightly fitted with the rubber frame.

[0008] Preferably, the slide plates are evenly distributed in the fixed plate, the slide plates and the fixed shells are arranged in a one-to-one correspondence, and a rubber sleeve is fixedly connected to one side of the slide plates away from the limiting plate.

[0009] Preferably, one end of the spring is arranged in a sliding groove provided in the fixing plate and is tightly fitted with the limiting plate, and the other end of the spring is arranged in a fixing shell and is tightly fitted with the fixing shell.

[0010] Preferably, the outer side of the limiting plate fits with the inner wall of the slide groove formed by the fixing plate, and the longitudinal cross-section of the slide groove formed by the fixing plate is the same as the longitudinal cross-section of the inner wall of the fixing shell.

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

[0012] 1. In the utility model, the sleeve plate and the sleeve shell can be directly installed on one side of the helicopter vertical tail through the long bolts by setting the sleeve plate, the sleeve shell, the long bolts, the fixing plate, the rubber frame, the angle measuring device, the fixing shell, the slide plate, the limit plate, the slide rod, the spring, the slide groove and the rubber sleeve. The sleeve plate and the sleeve shell can be directly installed on one side of the helicopter vertical tail through the long bolts. The long bolts can be turned to make the sleeve shell drive the fixing plate, the slide plate and the rubber sleeve to move until the rubber sleeve contacts the helicopter vertical tail. The rubber sleeve contacts the vertical tail through the elastic force of the spring to prevent the fixing plate from falling off the helicopter vertical tail. Through multiple sets of slide plates and rubber sleeves, the arc-shaped helicopter vertical tail can be clamped at multiple points to achieve a better clamping effect. At the same time, it can adapt to the angle detection of different models of helicopter horizontal tails.

[0013] 2. In the utility model, the measuring body, damping swivel, clamping plate and spirit level are provided, so that the clamping plate can be directly clamped in the rubber frame, and the clamping plate can be positioned by the rubber frame. At this time, the measuring body is rotated, and the angle of the measuring body can be adjusted by observing the spirit level. After that, the turning angle of the horizontal tail of the helicopter can be detected by the measuring body. With the action of the clamping plate, it can be installed on the vertical tail of helicopters of different models, so as to conveniently measure the turning angle of the horizontal tail. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the limit plate of the utility model;

[0016] Figure 3This is a schematic diagram of the installation structure of the long bolt of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the corner test device of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the measuring body of the utility model when viewed from above.

[0019] In the figure: 1. sleeve plate; 2. sleeve shell; 3. long bolt; 4. fixing plate; 5. rubber frame; 6. angle measuring device; 61. measuring body; 62. damping swivel; 63. clamping plate; 64. spirit level; 7. fixing shell; 8. slide plate; 9. limit plate; 10. slide rod; 11. spring; 12. slide groove; 13. rubber sleeve. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-5 , the utility model provides a technical solution:

[0022] A helicopter horizontal tail angle measuring tool comprises a vertically arranged sleeve plate 1, an angle measuring device 6 for measuring the horizontal tail angle and a slide plate 8 for supporting and clamping, sleeve shells 2 are arranged on the outer sides of both ends of the sleeve plate 1, long bolts 3 are arranged in the sleeve shells 2, one end of the long bolts 3 is threadedly connected to the sleeve plate 1, and the ends of the two sleeve shells 2 that are far away from each other on the right side are fixedly connected to a fixing plate 4, one side of the fixing plate 4 is provided with evenly distributed sliding grooves 12, and the fixing plate 4 is fixedly connected with an evenly distributed fixing shell 7 at the position of the sliding groove 12, and a slide plate 8 is arranged in the sliding groove 12 provided in the fixing plate 4, and one end of the slide plate 8 arranged in the sliding groove 12 provided in the fixing plate 4 is fixedly connected to a limit plate 9 A slide bar 10 is provided through the limit plate 9, one end of the slide bar 10 is fixedly connected to the fixed plate 4, and the other end of the slide bar 10 is fixedly connected to the fixed shell 7. A spring 11 is provided on the outside of the slide bar 10. A rubber frame 5 is fixedly connected to the side of the fixed plate 4 away from the sleeve plate 1. The rubber frame 5 is provided with an angle measuring device 6. Through this arrangement, the sleeve plate 1 and the sleeve shell 2 can be directly installed on one side of the vertical tail of the helicopter through the long bolts 3. By rotating the long bolts 3, the sleeve shell 2 drives the fixed plate 4, the slide plate 8 and the rubber sleeve 13 to move until the rubber sleeve 13 contacts the vertical tail of the helicopter. The elastic force of the spring 11 makes the rubber sleeve 13 contact the vertical tail to prevent the fixed plate 4 from falling off from the vertical tail of the helicopter.

[0023] like Figure 4 and 5 As shown, the angle measuring device 6 includes a measuring body 61, a damping swivel 62, a clamping plate 63 and a spirit level 64. The spirit level 64 is fixedly connected to the top center of the measuring body 61. The front and rear ends of the measuring body 61 are fixedly connected to the damping swivel 62. A clamping plate 63 is installed in the damping swivel 62. The outer side of the clamping plate 63 is tightly fitted with the rubber frame 5. Through this arrangement, the clamping plate 63 can be directly clamped in the rubber frame 5 and positioned by the rubber frame 5. At this time, the measuring body 61 is rotated, and the angle of the measuring body 61 can be adjusted by observing the spirit level 64. Then, the measuring body 61 can be used to detect the angle of the helicopter's horizontal tail. Under the action of the clamping plate 63, it can be installed on the vertical tail of different models of helicopters, so as to facilitate the measurement of the angle of the horizontal tail.

[0024] like Figure 1-3 As shown, the slide plate 8 is evenly distributed in the fixed plate 4, and the slide plate 8 and the fixed shell 7 are arranged in a one-to-one correspondence. The side of the slide plate 8 away from the limiting plate 9 is fixedly connected with a rubber sleeve 13, one end of the spring 11 is arranged in the slide groove 12 opened in the fixed plate 4 and is tightly fitted with the limiting plate 9, and the other end of the spring 11 is arranged in the fixed shell 7 and is tightly fitted with the fixed shell 7, the outer side of the limiting plate 9 and the inner wall of the slide groove 12 opened in the fixed plate 4 are fitted with each other, and the longitudinal section of the slide groove 12 opened in the fixed plate 4 is the same as the longitudinal section of the inner wall of the fixed shell 7. Through this arrangement, through multiple groups of slide plates 8 and rubber sleeves 13, clamping can be performed at multiple points on the curved helicopter vertical tail, so that the clamping effect is better, and at the same time, it can adapt to the angle detection of different types of helicopter horizontal tails.

[0025] Working process: When using this helicopter horizontal tail angle measuring tool, first, charge the measuring body 61, and then place the sleeve plate 1 on the side of the helicopter vertical tail away from the horizontal tail. At this time, put the two sleeve shells 2 on the outside of the sleeve plate 1, insert the long bolt 3 into the sleeve shell 2, and then rotate the long bolt 3 to make the long bolt 3 threadedly connected with the sleeve plate 1. At this time, the long bolt 3 pushes the sleeve shell 2 to move, and the sleeve shell 2 drives the fixed plate 4 to move until the fixed plate 4 drives the rubber sleeve 13 provided on the slide bar 10 to contact the vertical tail of the helicopter, and then continue to rotate the long bolt 3, the long bolt 3 pushes the sleeve shell 2 to move, and the sleeve shell 2 drives the slide plate 8 to move through the fixed plate 4 until the rubber sleeve 13 provided at one end of the slide plate 8 contacts the vertical tail. At this time, the rubber sleeve 13 and the slide plate 8 cannot move, and as the long bolt 3 continues to be rotated, the sleeve shell 2 and the fixed plate 4 continue to move, and the slide plate 8 drives the limit plate 9 to slide in the fixed plate 4. At this time, the limit plate 9 slides on the outside of the slide bar 10, and the spring 11 is compressed. At this time, the elastic force of the spring 11 passes through the limit plate 9 and the slide plate 8 and the rubber sleeve 13 are transferred to the vertical tail, and the slide plate 8 and the rubber sleeve 13 are clamped on the vertical tail by the elastic force of the spring 11. Through multiple sets of slide plates 8, the arc surface can be clamped on the arc-shaped vertical tail. After the clamping is completed, the clamping plate 63 is inserted into the rubber frame 5, and the rubber frame 5 clamps the clamping plate 63 by its own elasticity, and then the measuring body 61 is rotated, and the measuring body 61 drives the damping swivel 62 to rotate outside one end of the clamping plate 63. At this time, the level 64 is observed. After the level 64 shows horizontal, the measuring body 61 is opened. The measuring body 61 is powered by the internal battery. At this time, the two laser detection devices set at the bottom of the measuring body 61 emit lasers, and the lasers are projected onto the horizontal tail and then reflected. At this time, the measuring body 61 calculates the time difference of the laser return, thereby knowing the height difference between the left and right sides of the horizontal tail, thereby calculating the rotation angle of the horizontal tail. After the detection is completed, the clamping plate 63 is taken out from the rubber frame 5, and then the long bolt 3 is rotated in the opposite direction to remove the sleeve 1 and the sleeve 2 from the vertical tail of the helicopter.

[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. A helicopter horizontal tail angle measuring tool, comprising a vertically arranged sleeve (1), an angle measuring device (6) for measuring the horizontal tail angle, and a slide plate (8) for supporting and clamping, characterized in that: Both ends of the sleeve plate (1) are provided with sleeve shells (2) on the outside, and the sleeve shells (2) are provided with long bolts (3), one end of the long bolts (3) is threadedly connected to the sleeve plate (1), and the ends of the right sides of the two sleeve shells (2) that are away from each other are fixedly connected to a fixed plate (4), and one side of the fixed plate (4) is provided with evenly distributed sliding grooves (12), and the fixed plate (4) is fixedly connected to the position of the sliding grooves (12) provided on the fixed plate (4), and a slide plate (8) is provided in the sliding grooves (12) provided on the fixed plate (4). The slide plate (8) is arranged in a sliding groove (12) provided on the fixed plate (4), and one end thereof is fixedly connected to a limiting plate (9). A sliding rod (10) is provided through the limiting plate (9). One end of the sliding rod (10) is fixedly connected to the fixed plate (4), and the other end of the sliding rod (10) is fixedly connected to the fixed shell (7). A spring (11) is provided on the outside of the sliding rod (10). A rubber frame (5) is fixedly connected to the side of the fixed plate (4) away from the sleeve plate (1), and a rotation angle measuring device (6) is provided in the rubber frame (5).

2. A helicopter horizontal tail angle measuring tool according to claim 1, characterized in that: The rotation angle measuring device (6) comprises a measuring body (61), a damping swivel (62), a clamping plate (63) and a spirit level (64). The spirit level (64) is fixedly connected to the center of the top of the measuring body (61). The front and rear ends of the measuring body (61) are fixedly connected to the damping swivel (62). The clamping plate (63) is installed in the damping swivel (62). The outer side of the clamping plate (63) is tightly fitted with the rubber frame (5).

3. The helicopter horizontal tail angle measuring tool according to claim 1, characterized in that: The slide plates (8) are evenly distributed in the fixed plate (4), and the slide plates (8) are arranged in a one-to-one correspondence with the fixed shell (7). A rubber sleeve (13) is fixedly connected to the side of the slide plate (8) away from the limiting plate (9).

4. The helicopter horizontal tail angle measuring tool according to claim 1, characterized in that: One end of the spring (11) is arranged in the sliding groove (12) provided in the fixed plate (4) and is tightly fitted with the limit plate (9); the other end of the spring (11) is arranged in the fixed shell (7) and is tightly fitted with the fixed shell (7).

5. The helicopter horizontal tail angle measuring tool according to claim 1, characterized in that: The outer side of the limiting plate (9) fits in contact with the inner wall of the sliding groove (12) provided on the fixed plate (4), and the longitudinal cross-section of the sliding groove (12) provided on the fixed plate (4) is the same as the longitudinal cross-section of the inner wall of the fixed shell (7).

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