A dismounting device for a helicopter tail rotor blade assembly

Abstract

The utility model relates to the technical field of helicopter maintenance, especially relate to a kind of dismounting equipment for helicopter tail rotor blade assembly, including base, the base is fixedly installed with electric telescopic link, the driving shaft top of electric telescopic link is fixedly installed with mounting post, annular mouth is set up in the surface of mounting post, rotatingly installed with rotary drum in annular mouth, the surface of rotary drum is installed with multiple connecting rods, connecting rod is fixedly installed with mounting block, rotatingly installed with rotating rod in mounting block, gear is fixedly sleeved on rotating rod, mounting frame is slidably installed in mounting block;The surface of mounting frame is fixedly installed with rack bar. Through the cooperation between rotary drum and multiple mounting frames, multiple blades can be assembled simultaneously, and the disassembly and assembly work of multiple blades can be completed in turn, compared with the traditional dismounting equipment that can only assemble one tail rotor blade at a time, the tail rotor blade is disassembled and assembled, a large amount of repetitive work is avoided, and the work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of helicopter maintenance technology, and in particular to a device for disassembling and assembling helicopter tail rotor components. Background Technology

[0002] The tail rotor assembly plays a crucial role in balancing torque and controlling flight direction during helicopter flight. During helicopter maintenance, repair, and upgrades, it is often necessary to disassemble and install the tail rotor assembly using disassembly and assembly equipment.

[0003] Currently, helicopter tail rotor blades typically have multiple blades, but existing disassembly and assembly equipment can only disassemble and assemble one blade at a time. This requires repeating the disassembly and assembly steps multiple times, greatly reducing work efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: Currently, helicopter tail rotor blades generally have multiple blades, but existing disassembly and assembly equipment can only disassemble and assemble one blade at a time. This requires repeating the disassembly and assembly steps multiple times, which greatly reduces work efficiency. Therefore, this utility model proposes a disassembly and assembly equipment for helicopter tail rotor blade assemblies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for disassembling and assembling helicopter tail rotor components includes a base, an electric telescopic rod fixedly mounted on the upper surface of the base, a mounting column fixedly mounted on the top of the drive shaft of the electric telescopic rod, an annular opening on the surface of the mounting column, a rotating cylinder rotatably mounted inside the annular opening, multiple connecting rods fixedly mounted circumferentially on the surface of the rotating cylinder, a U-shaped mounting block fixedly mounted on one end of each connecting rod, a rotating rod horizontally rotatably mounted inside the mounting block, a gear fixedly sleeved on the rotating rod, and a mounting frame vertically slidably mounted inside the mounting block via a sliding component.

[0007] A rack rod is fixedly mounted on the surface of the mounting frame, and multiple rack rods are respectively connected to multiple gears. A drive motor is fixedly mounted on the surface of the mounting block, and the output shaft of the drive motor is fixedly connected to the rotating rod. A pressing component is provided on the top of the mounting column, and the pressing component is used to press against the rotating cylinder.

[0008] Preferably, the sliding component includes two sliding rods symmetrically fixedly installed on the surface of the mounting frame, and the inner wall of the mounting block is symmetrically vertically provided with sliding openings, and the two sliding rods are respectively vertically slidably arranged in the two sliding openings.

[0009] Preferably, the pressing assembly includes a threaded rod vertically rotatably mounted on the top of the mounting column, a sliding plate threaded onto the threaded rod, and two symmetrical pressing rods vertically fixed on the lower surface of the sliding plate. The upper surface of the mounting column is symmetrically provided with through holes that correspond to the positions on the upper surface of the rotating cylinder, and the two pressing rods are slidably inserted into the two through holes respectively.

[0010] Preferably, an anti-slip pad is fixedly installed at the bottom end of the pressure rod, and the anti-slip pad is made of rubber.

[0011] Preferably, the lower surface of the base is circumferentially equipped with multiple casters, and the casters have a self-locking function.

[0012] Preferably, an adjusting wheel is fixedly installed at the top of the threaded rod, and the surface of the adjusting wheel is provided with anti-slip texture.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By cooperating with the rotating drum and multiple mounting frames, multiple blades can be assembled simultaneously, and the assembly and disassembly of multiple blades can be completed sequentially. Compared with traditional assembly and disassembly equipment that can only assemble one tail blade at a time, this avoids a lot of repetitive work and improves work efficiency. Attached Figure Description

[0015] Figure 1 This is a front perspective view of a disassembly and assembly device for a helicopter tail rotor assembly proposed in this utility model.

[0016] Figure 2 This is a top-view three-dimensional structural diagram of a disassembly and assembly device for a helicopter tail rotor assembly proposed in this utility model.

[0017] Figure 3 This is a partial three-dimensional structural diagram of the mounting column and rotating cylinder in a disassembly and assembly device for a helicopter tail rotor assembly proposed in this utility model.

[0018] Figure 4 This is a partial three-dimensional structural diagram of the pressure component in a disassembly and assembly device for a helicopter tail rotor assembly proposed in this utility model.

[0019] Figure 5 for Figure 3 Enlarged view of the structure at point A in the middle.

[0020] In the diagram: 1. Base, 2. Electric telescopic rod, 3. Mounting column, 4. Rotary cylinder, 5. Mounting block, 6. Rotary rod, 7. Gear, 8. Mounting frame, 9. Rack and pinion, 10. Drive motor, 11. Slide rod, 12. Threaded rod, 13. Slide plate, 14. Pressure bar, 15. Anti-slip pad, 16. Casters. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0023] Reference Figures 1-5 A device for disassembling and assembling helicopter tail rotor components includes a base 1. An electric telescopic rod 2 is fixedly installed on the upper surface of the base 1. A mounting post 3 is fixedly installed at the top of the drive shaft of the electric telescopic rod 2. An annular opening is formed on the surface of the mounting post 3. A rotating cylinder 4 is rotatably installed inside the annular opening. Multiple connecting rods are fixedly installed on the circumferential surface of the rotating cylinder 4. A U-shaped mounting block 5 is fixedly installed at one end of the connecting rod. A rotating rod 6 is horizontally rotatably installed inside the mounting block 5. A gear 7 is fixedly sleeved on the rotating rod 6. A mounting frame 8 is vertically slidably installed inside the mounting block 5 through a sliding component. The sliding component includes two sliding rods 11 symmetrically fixedly installed on the surface of the mounting frame 8. The inner wall of the mounting block 5 is symmetrically vertically opened with sliding openings. The two sliding rods 11 are vertically slidably arranged in the two sliding openings respectively.

[0024] A rack rod 9 is fixedly mounted on the surface of the mounting frame 8. Multiple rack rods 9 are respectively meshed with multiple gears 7. A drive motor 10 is fixedly mounted on the surface of the mounting block 5. The output shaft of the drive motor 10 is fixedly connected to the rotating rod 6. A pressing component is provided on the top of the mounting column 3. The pressing component is used to press against the rotating cylinder 4.

[0025] The electric telescopic mast 2 can move vertically along with the mounting column 3 and the rotating drum 4, and multiple mounting frames 8 are used to hold multiple blades.

[0026] When it is necessary to disassemble the blades, first move the equipment to a suitable position, then start the electric telescopic rod 2 to move the mounting column 3 and the rotating drum 4 vertically until they reach the appropriate height. Then rotate the rotating drum 4 so that one of the mounting frames 8 is below the blade to be disassembled. Then start the drive motor 10 to control the rotating rod 6 to rotate the gear 7, so that the rack rod 9, which meshes with the gear 7, moves the mounting frame 8 upward until the blade enters the mounting frame 8. Then disassemble the blade and let it fall into the mounting frame 8. Then rotate the rotating drum 4 again to move the other mounting frame 8 to the position corresponding to the next blade to be disassembled. Repeat the above steps to complete the disassembly of multiple blades in sequence. When it is necessary to install the blades, the rotating drum 4 is rotated and the drive motor 10 is started to move the multiple blades located in the multiple mounting frames 8 to the appropriate installation position in sequence for installation. This is convenient and quick.

[0027] The pressure-blocking assembly includes a threaded rod 12 vertically rotatably mounted on the top of the mounting column 3, a sliding plate 13 threaded onto the threaded rod 12, and two symmetrically vertically fixed pressure rods 14 fixedly mounted on the lower surface of the sliding plate 13. An adjusting wheel is fixedly mounted on the top of the threaded rod 12, and the surface of the adjusting wheel is provided with anti-slip texture. The upper surface of the mounting column 3 is symmetrically provided with through holes that correspond to the positions on the upper surface of the rotating cylinder 4. The two pressure rods 14 are slidably inserted into the two through holes respectively. An anti-slip pad 15 is fixedly mounted on the bottom of the pressure rod 14. The anti-slip pad 15 is made of rubber.

[0028] Once the rotating drum 4, along with the mounting frame 8, has rotated to the appropriate position, the sliding plate 13 can be controlled to move the two pressure rods 14 downwards by rotating the threaded rod 12. This causes the bottom ends of the two pressure rods 14 to press tightly against the upper surface of the rotating drum 4, thereby increasing the rotation torque of the rotating drum 4 and locking it in place. This prevents the rotating drum 4 from rotating during blade assembly and disassembly, which would affect the blade assembly and disassembly process.

[0029] The rubber anti-slip pad 15 has good elasticity and adhesion, which can increase the friction between the contact surface of the pressure bar 14 and the rotating cylinder 4.

[0030] The lower surface of the base 1 is circumferentially equipped with multiple casters 16, which have a self-locking function.

[0031] The casters 16 facilitate the movement of the equipment, and after it has been moved to a suitable position, the casters 16 can be locked to prevent the casters 16 from moving the equipment arbitrarily.

[0032] In this invention, through the cooperation between the rotating drum 4 and multiple mounting frames 8, the equipment can simultaneously assemble multiple blades and sequentially complete the assembly and disassembly of multiple blades. Compared with traditional assembly and disassembly equipment that can only assemble one tail blade at a time, multiple blades can be assembled and disassembled simultaneously, avoiding a lot of repetitive labor and improving work efficiency.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for disassembling and assembling a helicopter tail rotor assembly, comprising a base (1), characterized in that, An electric telescopic rod (2) is fixedly installed on the upper surface of the base (1). An installation column (3) is fixedly installed at the top of the drive shaft of the electric telescopic rod (2). An annular opening is provided on the surface of the installation column (3). A rotating cylinder (4) is rotatably installed inside the annular opening. Multiple connecting rods are fixedly installed on the surface of the rotating cylinder (4) in a circular shape. A U-shaped installation block (5) is fixedly installed at one end of the connecting rod. A rotating rod (6) is horizontally rotatably installed inside the installation block (5). A gear (7) is fixedly sleeved on the rotating rod (6). An installation frame (8) is vertically slidably installed inside the installation block (5) through a sliding component. A rack rod (9) is fixedly installed on the surface of the mounting frame (8), and multiple rack rods (9) are respectively meshed with multiple gears (7). A drive motor (10) is fixedly installed on the surface of the mounting block (5), and the output shaft of the drive motor (10) is fixedly connected to the rotating rod (6). A pressing component is provided on the top of the mounting column (3), and the pressing component is used to press against the rotating cylinder (4).

2. The disassembly and assembly equipment for helicopter tail rotor assembly according to claim 1, characterized in that, The sliding component includes two sliding rods (11) that are symmetrically fixedly installed on the surface of the mounting frame (8). The inner wall of the mounting block (5) is symmetrically and vertically provided with sliding openings, and the two sliding rods (11) are respectively vertically slidably arranged in the two sliding openings.

3. The disassembly and assembly equipment for a helicopter tail rotor assembly according to claim 1, characterized in that, The pressure-blocking assembly includes a threaded rod (12) that is vertically rotatably mounted on the top of the mounting column (3), a sliding plate (13) that is threaded onto the threaded rod (12), and two pressure-blocking rods (14) that are symmetrically and vertically fixed on the lower surface of the sliding plate (13). The upper surface of the mounting column (3) is symmetrically provided with through holes that correspond to the positions on the upper surface of the rotating cylinder (4), and the two pressure-blocking rods (14) are slidably inserted into the two through holes respectively.

4. The disassembly and assembly equipment for a helicopter tail rotor assembly according to claim 3, characterized in that, The bottom end of the pressure bar (14) is fixedly equipped with an anti-slip pad (15), which is made of rubber.

5. The disassembly and assembly equipment for a helicopter tail rotor assembly according to claim 1, characterized in that, The lower surface of the base (1) is circumferentially equipped with multiple casters (16), and the casters (16) have a self-locking function.

6. The disassembly and assembly equipment for a helicopter tail rotor assembly according to claim 3, characterized in that, An adjusting wheel is fixedly installed at the top of the threaded rod (12), and the surface of the adjusting wheel is provided with anti-slip texture.

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