A propeller assembly device for helicopter parts production

Abstract

The utility model relates to the technical field of helicopter parts, concretely is a kind of propeller assembling device for helicopter parts production, including hanger, both sides of the top of the hanger are provided with axle stand, transmission shaft is movably arranged between the axle stand, movable slot is provided at the four corners of the hanger, clamping mechanism is provided in the inside of the movable slot.The swing arm in the clamping mechanism is movably installed in movable slot by pivot, and spring is provided between pivot and movable slot, under the action of driving mechanism, the clamping jaw of swing arm bottom end can be stably clamped from the both sides of blade, spring can make the clamping jaw keep certain opening angle in initial state, facilitate blade to enter between clamping jaw, when being driven by the force of driving mechanism, clamping jaw can accurately adhere to both sides of blade and be clamped, ensure the stability of clamping.

Description

Technical Field

[0001] This utility model relates to the field of helicopter parts technology, specifically a propeller assembly device for helicopter parts production. Background Technology

[0002] Helicopters mainly consist of the airframe and three major systems: lift (including the main rotor and tail rotor), power, and transmission, as well as onboard flight equipment. The rotor is generally driven by a turboshaft engine or piston engine through a mechanical transmission system consisting of a drive shaft and reduction gear, or it can be driven by the reaction force generated by jet exhaust from the rotor tips. Helicopters are classified into conventional helicopters, tiltrotor helicopters, high-speed helicopters, and stealth helicopters.

[0003] As disclosed in CN217513279U, a propeller assembly device for helicopter parts production includes a base and a drive motor. A support frame is fixedly connected to the surface of the base, and a mounting frame is fixedly connected to the top of the support frame. A lead screw mounting seat is fixedly connected to the surface of the mounting frame, and limit rod mounting seats are fixedly connected to both sides of the lead screw mounting seat on the surface of the mounting frame. The beneficial effects of this invention, using the above technical solution, are: rapid transport of the propeller to the assembly table, facilitating manual processing, reducing labor costs and labor intensity by eliminating the need for manual handling.

[0004] Although the aforementioned patent allows for the rapid transport of propellers to the assembly table, facilitating processing, one of the characteristics of belt drives is that the difference in tension on both sides of the pulley and the elastic deformation of the belt will cause a loss of transmission speed, thus failing to guarantee an accurate transmission ratio. Therefore, the aforementioned patent cannot achieve accurate synchronous rotation of the lead screws on both sides, and consequently cannot achieve synchronous displacement of the clamping plates. Utility Model Content

[0005] The purpose of this invention is to provide a propeller assembly device for helicopter parts production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A propeller assembly apparatus for helicopter parts production, comprising:

[0008] The hanger has shaft brackets on both sides of its top end, a drive shaft is movably arranged between the shaft brackets, and movable slots are provided at the four corners of the hanger, with clamping mechanisms installed inside the movable slots.

[0009] A drive mechanism is provided between the clamping mechanism and the drive shaft, a pressure rod is movably sleeved in the middle of the hanger, and a lifting mechanism is provided between the drive shaft and the pressure rod.

[0010] Preferably, the drive mechanism includes a motor, with the motor disposed outside the shaft frame on the right side, the output shaft of the motor being fixedly connected to the transmission shaft, and rotating heads disposed at both ends of the transmission shaft;

[0011] Preferably, the clamping mechanism includes a swing arm, which is movably mounted inside the movable groove via a rotating shaft. A return spring is provided between the rotating shaft and the movable groove, and a gripper is provided at the bottom end of the swing arm.

[0012] Preferably, a movable frame is fixedly installed at the top of the swing arm, and mounting heads are provided inside the upper end of the movable frame and inside both ends of the rotating head, with a connecting rod provided between the mounting heads;

[0013] Preferably, the lifting mechanism includes a cam, a cam is fixedly installed in the middle of the transmission shaft, a clamping rod is horizontally provided at the bottom end of the pressure rod, and a helical spring is provided between the hanger and the lower outer part of the pressure rod;

[0014] Preferably, sleeves are symmetrically arranged on both sides of the bottom middle part of the hanger, and guide rods matching the sleeves are arranged at the top of both sides of the clamp rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. A rotor assembly device for helicopter parts production, wherein a swing arm in the clamping mechanism is movably mounted in a movable slot via a rotating shaft, and a return spring is provided between the rotating shaft and the movable slot. Under the action of the drive mechanism, the gripper at the bottom of the swing arm can stably clamp the blade from both sides. The return spring can keep the gripper at a certain opening angle in the initial state, which facilitates the blade to enter between the gripper. When subjected to the force of the drive mechanism, the gripper can accurately fit against both sides of the blade for clamping, ensuring the stability of the clamping.

[0017] 2. A propeller assembly device for helicopter parts production, wherein the swing arm drives the gripper to clamp from both sides of the blade, and when the drive shaft rotates, the cam in the middle causes the pressure rod to drop, and the clamp at the bottom of the pressure rod clamps from the middle of the upper end of the blade. Through multi-directional clamping, the position of the blade can be accurately determined, preventing the blade from shifting or rotating during transfer and assembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the clamp rod installation structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the return spring structure of this utility model;

[0021] Figure 4 For the present utility model Figure 1 Enlarged diagram of point A in the middle.

[0022] In the diagram: 1. Hanger; 2. Shaft bracket; 3. Drive shaft; 4. Movable groove; 5. Pressure rod; 6. Motor; 7. Rotary head; 8. Swing arm; 9. Return spring; 10. Movable frame; 11. Mounting head; 12. Connecting rod; 13. Cam; 14. Clamping rod; 15. Helical spring; 16. Sleeve; 17. Guide rod; 18. Clamping jaw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4 As shown, this utility model provides a technical solution:

[0025] A propeller assembly device for helicopter parts production includes a hanger 1, with shaft brackets 2 on both sides of the top of the hanger 1, a drive shaft 3 movably arranged between the shaft brackets 2, movable slots 4 at the four corners of the hanger 1, a clamping mechanism inside the movable slots 4, the clamping mechanism including a swing arm 8, the swing arm 8 being movably mounted inside the movable slots 4 via a rotating shaft, a return spring 9 between the rotating shaft and the movable slots 4, and a gripper 18 at the bottom of the swing arm 8; a drive mechanism between the clamping mechanism and the drive shaft 3, the drive mechanism including a motor 6, the motor 6 being arranged outside the right shaft bracket 2, the output shaft of the motor 6 being fixedly connected to the drive shaft 3, a rotating head 7 at both ends of the drive shaft 3, a movable frame 10 fixedly mounted at the top of the swing arm 8, mounting heads 11 being arranged inside the upper end of the movable frame 10 and inside both ends of the rotating head 7, and a connecting rod 12 between the mounting heads 11;

[0026] In this embodiment, the swing arm 8 in the clamping mechanism is movably mounted in the movable groove 4 via a rotating shaft, and a return spring 9 is provided between the rotating shaft and the movable groove 4. Under the action of the driving mechanism, the gripper 18 at the bottom of the swing arm 8 can stably clamp the blade from both sides of the blade. The return spring 9 can keep the gripper 18 at a certain opening angle in the initial state, which facilitates the blade to enter between the gripper 18. When subjected to the force of the driving mechanism, the gripper 18 can accurately fit against both sides of the blade for clamping, ensuring the stability of the clamping.

[0027] like Figure 1 and Figure 2 As shown, a pressure rod 5 is movably sleeved in the middle of the hanger 1. A lifting mechanism is provided between the drive shaft 3 and the pressure rod 5. The lifting mechanism includes a cam 13. The cam 13 is fixedly installed in the middle of the drive shaft 3. A clamping rod 14 is horizontally provided at the bottom end of the pressure rod 5. A helical spring 15 is provided between the hanger 1 and the lower outer part of the pressure rod 5. Sleeves 16 are symmetrically provided on both sides of the bottom end of the middle of the hanger 1. Guide rods 17 that match the sleeves 16 are provided at the top of both sides of the clamping rod 14.

[0028] In this embodiment, while the swing arm 8 drives the gripper 18 to clamp the blade from both sides, the cam 13 in the middle of the transmission shaft 3 will cause the pressure rod 5 to drop when the transmission shaft 3 rotates. The clamping rod 14 at the bottom of the pressure rod 5 clamps the blade from the middle of the upper end. The multi-directional clamping can accurately determine the position of the blade and prevent the blade from shifting or rotating during the transfer and assembly process.

[0029] Working principle: When assembling the propeller, this device is used to transfer the blades to the assembly table. During operation, the lifting device controls the hanger 1 to descend to the upper end of the blade and starts the motor 6. The motor 6 drives the transmission shaft 3 to rotate. When the transmission shaft 3 rotates, it drives the rotating head 7 to rotate synchronously. When the rotating head 7 rotates, it pushes the movable frame 10 through the connecting rod 12. When the movable frame 10 is pushed, the swing arm 8 at its lower end flips and drives the gripper 18 to clamp and lift the blades on both sides. When the transmission shaft 3 is driven to rotate, the cam 13 in the middle of the transmission shaft 3 will rotate synchronously. When the cam 13 rotates, it controls the pressure rod 5 to descend. When the pressure rod 5 descends, it drives the clamping rod 14 below to clamp the blade from the middle of the upper end.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A propeller assembly device for helicopter parts production, characterized in that: include Hanger (1), with shaft brackets (2) provided on both sides of the top of the hanger (1), and a drive shaft (3) movably arranged between the shaft brackets (2). Movable grooves (4) are provided at the four corners of the hanger (1), and a clamping mechanism is provided inside the movable grooves (4). A drive mechanism is provided between the clamping mechanism and the drive shaft (3), a pressure rod (5) is movably sleeved in the middle of the hanger (1), and a lifting mechanism is provided between the drive shaft (3) and the pressure rod (5).

2. The propeller assembly device for helicopter parts production according to claim 1, characterized in that: The drive mechanism includes a motor (6), the motor (6) is installed outside the shaft frame (2) on the right side, the output shaft of the motor (6) is fixedly connected to the transmission shaft (3), and a rotating head (7) is provided at both ends of the transmission shaft (3).

3. The propeller assembly device for helicopter parts production according to claim 1, characterized in that: The clamping mechanism includes a swing arm (8), which is movably mounted inside the movable groove (4) via a rotating shaft. A return spring (9) is provided between the rotating shaft and the movable groove (4), and a gripper (18) is provided at the bottom end of the swing arm (8).

4. The propeller assembly device for helicopter parts production according to claim 3, characterized in that: A movable frame (10) is fixedly installed at the top of the swing arm (8). Mounting heads (11) are provided inside the upper end of the movable frame (10) and inside both ends of the rotating head (7). A connecting rod (12) is provided between the mounting heads (11).

5. The propeller assembly device for helicopter parts production according to claim 1, characterized in that: The lifting mechanism includes a cam (13), which is fixedly installed in the middle of the transmission shaft (3), and a clamping rod (14) is horizontally provided at the bottom end of the pressure rod (5). A helical spring (15) is provided between the hanger (1) and the lower outer part of the pressure rod (5).

6. The propeller assembly device for helicopter parts production according to claim 5, characterized in that: The hanger (1) has sleeves (16) symmetrically arranged on both sides of the bottom middle part, and guide rods (17) matching the sleeves (16) are arranged on the top two sides of the clamp (14).

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