Folding rudder wing pin shaft pulling device

Abstract

The invention relates to a folding rudder wing pin shaft pulling device which comprises a positioning plate, a bearing plate, a bearing rod and a sleeve, the sleeve is installed on the bearing plate through a rolling bearing, one end of the bearing rod is in threaded connection with the bearing plate, the other end of the bearing rod is in threaded connection with the positioning plate, a limiting hole is formed in the surface of the positioning plate, and the sleeve is further in threaded connection with a guide rod. At least one end of the guide rod is fixedly connected with the drag hook. By adopting the technical scheme provided by the invention, an operator can apply rotating torque to the sleeve by hands, so that the guide rod moves along the axial direction, the rotating torque applied by the operator is converted into axial force acting on the drag hook and the guide rod, and the pin shaft is pulled out. The rotating torque applied by an operator in a bare-handed mode is more uniform and softer, impact force generated on the pin shaft is greatly reduced, damage to the pin shaft is avoided, the taken-down pin shaft can be reused, and the utilization efficiency of parts is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of jigs, and particularly relates to a folding rudder wing pin extraction device. Background Art

[0002] In order to enable the cylindrical missile to fly smoothly after being launched out of the tube, there are very high requirements for the attitude of its rudder wing deployment. If the rudder wing fails to deploy in time after the missile is launched, or the deployment attitude fails to meet the design requirements, the missile is extremely likely to flip and fall after leaving the tube, resulting in the failure of the missile launch. Therefore, during the assembly process of the rudder wing, the pin connecting the rudder body and the wing plate is a key component. If there are defects in the pin, the old pin needs to be pulled out and a new pin needs to be reinstalled.

[0003] In the prior art, a patent document with the authorization announcement number of "CN107283153B" discloses a pin extraction device, which includes a support plate. A positioning mechanism, a pin extraction mechanism, a pin removal mechanism and an electric control box are arranged on the support plate. A driving cylinder is arranged on the support plate, and the driving cylinder drives the pin extraction mechanism to extract the pin in the product. The pin removal mechanism is used to remove the pin from the pin extraction mechanism. The pin extraction mechanism and the pin removal mechanism are both electrically connected to the electric control box. By adopting the technical solution of this patent, the pin can be quickly extracted from the product assembly without damaging the product assembly, saving the maintenance cost and improving the work efficiency.

[0004] However, in the existing pin extraction devices, generally cylinders and motors are used as power sources. Cylinders and motors can generate huge extraction forces in a very short time. Correspondingly, huge impact forces are also generated on the pins, which are still likely to cause damage to the pins and affect the reuse effect of the removed pins. In addition, if there is no air source or power source outdoors, the above-mentioned pin extraction device cannot be used. Summary of the Invention

[0005] To solve the above technical problems, the invention provides a folding rudder wing pin extraction device.

[0006] The invention provides a folding rudder wing pin extraction device. The application object of the folding rudder wing pin extraction device is the rudder wing. The rudder wing includes a rudder body and a wing plate. One side of the wing plate is hinged to the rudder body by a pin, and the other side of the wing plate extends outward. The folding rudder wing pin extraction device is used to pull out the pin and separate the rudder body from the wing plate. The folding rudder wing pin extraction device includes a positioning plate, a support plate, a support rod and a sleeve. The sleeve is installed on the support plate by a rolling bearing. One end of the support rod is screwed to the support plate, and the other end of the support rod is screwed to the positioning plate. A limiting hole is arranged on the surface of the positioning plate. The sleeve is also screwed to a guide rod, and at least one end of the guide rod is fixedly connected to a hook.

[0007] The number of the supporting rods is multiple, and the multiple supporting rods are uniformly arranged in a circumferential array with the central axis of the guide rod as the rotation center.

[0008] The number of the supporting rods is more than 4.

[0009] The supporting rod is also screwed with a locking nut, and the locking nut is in contact with the positioning plate and the supporting plate.

[0010] The guide rod and the hook are connected together through a thread pair.

[0011] The folding rudder wing pin extraction device further includes a hand wheel and multiple spokes. The spokes are fixedly connected between the hand wheel and the sleeve, and the central axis of the hand wheel coincides with the central axis of the sleeve.

[0012] The number of the spokes is more than 4.

[0013] The limiting hole is a circular through hole.

[0014] Both the positioning plate and the supporting plate are rectangular thin plates.

[0015] The beneficial effects of the present invention are as follows: By adopting the technical solution provided by the present invention, the operator can apply the rotational torque on the sleeve by hand. Since the sleeve and the guide rod are connected through a thread pair, the guide rod moves along its axial direction, and the rotational torque applied by the operator is converted into an axial force acting on the hook and the guide rod, thereby pulling out the pin. Compared with the prior art, the present invention can be operated by the operator by hand, can be used in the outdoor occasions lacking power supply and gas source, has a wider application range, the rotational torque applied by the operator by hand is more uniform and gentle, the impact force on the pin is greatly reduced, damage to the pin is avoided, and the removed pin can be reused, improving the utilization efficiency of parts. Description of the Drawings

[0016] Figure 1 is the front view of the present invention.

[0017] In the figure: 1 - rudder wing, 2 - rudder body, 3 - wing plate, 4 - pin, 5 - positioning plate, 6 - supporting plate, 7 - supporting rod, 8 - sleeve, 9 - limiting hole, 10 - guide rod, 11 - hook, 12 - locking nut, 13 - hand wheel, 14 - spoke. Detailed Embodiments

[0018] The technical solution of the present invention will be further described below in conjunction with the drawings, but the claimed protection scope is not limited thereto;

[0019] The present invention provides a folding rudder wing pin extraction device, as Figure 1As shown in the figure, the application object of the folding rudder wing pin extraction device is the rudder wing 1. The rudder wing 1 includes a rudder body 2 and a wing plate 3. One side of the wing plate 3 is hinged to the rudder body 2 by a pin shaft 4, and the other side of the wing plate 3 extends outward. The folding rudder wing pin extraction device is used to pull out the pin shaft 4 and separate the rudder body 2 from the wing plate 3. The folding rudder wing pin extraction device includes a positioning plate 5, a support plate 6, a support rod 7, and a sleeve 8. The sleeve 8 is installed on the support plate 6 using a rolling bearing. One end of the support rod 7 is screwed to the support plate 6, and the other end of the support rod 7 is screwed to the positioning plate 5. A limit hole 9 is provided on the surface of the positioning plate 5. The sleeve 8 is also screwed to a guide rod 10, and at least one end of the guide rod 10 is fixedly connected to a hook 11.

[0020] Adopting the technical solution provided by the present invention, the operator can apply the rotational torque on the sleeve by hand. Since the sleeve and the guide rod are connected by a thread pair, the guide rod moves along its axial direction, and the rotational torque applied by the operator is converted into an axial force acting on the hook and the guide rod, thereby pulling out the pin shaft. Compared with the prior art, the present invention can be operated by the operator by hand, can be used in outdoor occasions lacking power supply and gas source, has a wider application range, the rotational torque applied by the operator by hand is more uniform and gentle, the impact force on the pin shaft is greatly reduced, damage to the pin shaft is avoided, and the removed pin shaft can be reused, improving the utilization efficiency of parts.

[0021] Specifically, the number of the support rods 7 is multiple. The multiple support rods 7 are uniformly arranged in a circumferential array with the central axis of the guide rod 10 as the rotation center. The number of the support rods 7 is more than 4. The support rod 7 is also screwed to a locking nut 12, and the locking nut 12 is in contact with the positioning plate 5 and the support plate 6. The guide rod 10 and the hook 11 are connected together by a thread pair.

[0022] In addition, the folding rudder wing pin extraction device further includes a handwheel 13 and multiple spokes 14. The spokes 14 are fixedly connected between the handwheel 13 and the sleeve 8, and the central axis of the handwheel 13 coincides with the central axis of the sleeve 8. The number of the spokes 14 is more than 4. The limit hole 9 is a circular through hole. The positioning plate 5 and the support plate 6 are both rectangular thin plates.

Claims

1. A folding rudder wing pin extraction device, characterized in that: The application object of the folding rudder flap pin extraction device is the rudder flap (1), and the rudder flap (1) includes a rudder body (2) and a flap (3). One side of the flap (3) is hinged to the rudder body (2) by a pin (4), and the other side of the flap (3) extends outward. The folding rudder flap pin extraction device is used to extract the pin (4) and separate the rudder body (2) from the flap (3). The folding rudder flap pin extraction device includes a positioning plate (5), a support plate (6), a support rod (7) and a sleeve (8). The sleeve (8) is installed on the support plate (6) using a rolling bearing. One end of the support rod (7) is screwed to the support plate (6), and the other end of the support rod (7) is screwed to the positioning plate (5). A limit hole (9) is provided on the surface of the positioning plate (5). The sleeve (8) is also screwed to a guide rod (10), and at least one end of the guide rod (10) is fixedly connected to a hook (11).

2. The pin extraction device for a folding rudder wing according to claim 1, characterized in that: The number of the support rods (7) is multiple. The multiple support rods (7) are evenly arranged in a circumferential array with the central axis of the guide rod (10) as the rotation center.

3. The extraction device for folding rudder wing pin shaft according to claim 2, characterized in that: The number of the support rods (7) is more than 4.

4. A folding rudder wing pin extraction device according to claim 1, characterized in that: The support rod (7) is also screwed to a lock nut (12), and the lock nut (12) is in contact with the positioning plate (5) and the support plate (6).

5. The extraction device for the folding rudder wing pin shaft according to claim 1, characterized in that: The guide rod (10) and the hook (11) are connected together through a thread pair.

6. The extraction device for folding rudder wing pin shaft according to claim 1, characterized in that: The folding rudder flap pin extraction device further includes a handwheel (13) and multiple spokes (14). The spokes (14) are fixedly connected between the handwheel (13) and the sleeve (8), and the central axis of the handwheel (13) coincides with the central axis of the sleeve (8).

7. The extraction device for the folding rudder wing pin shaft according to claim 6, wherein: The number of the spokes (14) is more than 4.

8. The extraction device for folding rudder wing pin shafts according to claim 1, characterized in that: The limit hole (9) is a circular through-hole.

9. The pin extraction device for a folding rudder wing according to claim 1, characterized in that: The positioning plate (5) and the support plate (6) are both rectangular thin plates.

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