CN110142504B

CN110142504B - Rigid-flexible coupling galvanometer device for laser weapon

Info

Publication number: CN110142504B
Application number: CN201910385358.3A
Authority: CN
Inventors: 杨志军; 王炫予; 苏丽云
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2021-08-24
Anticipated expiration: 2039-05-09
Also published as: CN110142504A

Abstract

The invention relates to a rigid-flexible coupling galvanometer device for a laser weapon, comprising: the device comprises a mounting seat, a bearing, a rigid-flexible coupling transmission shaft, a motor, a base and a reflector; the mounting seat is provided with a mounting hole; the rigid-flexible coupling transmission shaft comprises: an inner shaft, a flexible portion and an outer shaft, the inner shaft and the outer shaft being connected by the flexible portion; the bearing is placed in the mounting hole; the inner shaft of the rigid-flexible coupling transmission shaft is connected with the bearing; the base is arranged on the outer shaft of the rigid-flexible coupling transmission shaft; the reflector plate is arranged on the base; the motor is used for driving the inner shaft of the rigid-flexible coupling transmission shaft. When the vibration mirror system is started, the flexible hinge between the inner shaft and the outer shaft is elastically deformed to compensate the displacement of a friction dead zone of the kinematic pair, so that the vibration mirror system is quickly started, moves at a high speed and is accurately positioned.

Description

Rigid-flexible coupling galvanometer device for laser weapon

Technical Field

The invention relates to the technical field of laser weapons, in particular to a rigid-flexible coupling galvanometer device for a laser weapon.

Background

Laser weapons are weapons for accurately shooting a long-distance target with high-energy laser or for defending missiles and the like, and are classified into tactical laser weapons and strategic laser weapons. Has the excellent performances of rapidness, flexibility, accuracy, electromagnetic interference resistance and the like, and can play a unique role in photoelectric countermeasure, air defense and strategic defense. As a novel attack weapon, the airborne laser weapon can be applied to various airborne platforms such as fighters, unmanned planes and the like. The galvanometer system is a high-speed precise servo control system consisting of a reflecting mirror and a motor, laser is reflected by changing the angle of the reflecting mirror, and a laser weapon requires very precise control on the reflecting mirror. The laser weapon requires the position precision of the galvanometer to be 1 micro radian, and the rotation angle needs dozens of degrees. Such high precision cannot be achieved due to the friction dead zone of the bearings. The flexible hinge has no friction and can realize high precision, but has small stroke. Therefore, the project combines the advantages of a rotating shaft and a flexible hinge to invent a rigid-flexible coupling galvanometer system.

Disclosure of Invention

The invention provides a structural scheme of a rigid-flexible coupling galvanometer device. The elastic deformation of the flexible hinge overcomes the friction dead zone of the kinematic pair, and the rapid starting and the accurate positioning of the laser reflection lens are realized, so that the problems of low starting speed and low positioning accuracy of the existing laser galvanometer system are solved. The technical scheme adopted by the invention is as follows.

A rigid-flexible coupling galvanometer device for a laser weapon, the rigid-flexible coupling galvanometer device comprising: the device comprises a mounting seat, a bearing, a rigid-flexible coupling transmission shaft, a motor, a base and a reflector; the mounting seat is provided with a mounting hole; the rigid-flexible coupling transmission shaft comprises: an inner shaft, a flexible portion and an outer shaft, the inner shaft and the outer shaft being connected by the flexible portion; the bearing is placed in the mounting hole; the inner shaft of the rigid-flexible coupling transmission shaft is connected with the bearing; the base is arranged on the outer shaft of the rigid-flexible coupling transmission shaft; the reflector plate is arranged on the base; the motor is used for driving the inner shaft of the rigid-flexible coupling transmission shaft.

Further, the motor is a brushless dc servo motor.

Furthermore, a planetary reducer is arranged in the brushless direct current servo motor.

Further, the mounting seat is provided with two mounting holes; the outer shaft of the rigid-flexible coupling transmission shaft and the motor are placed between the two mounting holes.

Further, the end of at least one of the mounting holes is flush with the end of the mounting seat.

Further, the rigid-flexible coupling galvanometer device further comprises transparent covers which are arranged on the opposite sides of the two mounting holes.

Further, the rigid-flexible coupling galvanometer device further comprises end covers, and the end covers are arranged on opposite sides of the two mounting holes.

Further, the rigid-flexible coupling galvanometer device also comprises an end cover.

Compared with the prior art, the beneficial effects are: under the effect of the brushless direct current servo motor, the rigid-flexible coupling transmission shaft is driven to rotate through the planetary reducer, and the displacement of a friction dead zone of a kinematic pair is compensated through elastic deformation of the flexible hinge between the inner shaft and the outer shaft of the rigid-flexible coupling transmission during starting, so that the quick starting, the high-speed movement and the accurate positioning of the galvanometer system are realized.

Drawings

Fig. 1 is an overall schematic view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is an assembly view of the present invention.

Fig. 4 is a left side view of the rigid-flexible coupling transmission shaft of the present invention.

Fig. 5 is a sectional view of the rigid-flexible coupling transmission shaft of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

As shown in fig. 1 to 3, a rigid-flexible coupling galvanometer device for a laser weapon, the rigid-flexible coupling galvanometer device comprising: the device comprises a mounting seat 11, a bearing, a rigid-flexible coupling transmission shaft, a motor 5, a base 12 and a reflecting mirror 6. And a mounting hole is formed in the mounting seat 11, and the bearing is placed in the mounting hole. Preferably, there are two bearings, namely a first bearing 2 and a second bearing 9, and there are 2 mounting holes, the first bearing 2 is placed in the first mounting hole 15, and the second bearing 9 is placed in the second mounting hole 7. Of course, the number of bearings can be set according to actual needs by those skilled in the art. The mounting holes can also be arranged in specific number and form according to the requirement of the number of bearings and the placement position of the rigid-flexible coupling transmission shaft. In the present embodiment, the ends of the first mounting hole 15 and the second mounting hole 7 are flush with the ends of the mounting seat, but it is understood that a person skilled in the art can arrange the specific positions of the mounting holes according to actual needs, for example, the mounting holes may be asymmetrically arranged or not flush with the ends. As shown in fig. 4 and 5, the rigid-flexible coupling transmission shaft includes: the inner shaft 4, the flexible portion 14 and the outer shaft 13, and the inner shaft 4 and the outer shaft 13 are connected by the flexible portion 14. Preferably, the flexible portion 14 is a flexible hinge, but it will be appreciated that one skilled in the art may use different forms of flexible materials or flexible structures depending on the actual needs. An inner shaft 4 of the rigid-flexible coupling transmission shaft is connected with a first bearing 2 and a second bearing 9; the base 12 is arranged on an outer shaft 13 of the rigid-flexible coupling transmission shaft; the reflector 6 is arranged on the base 12; the motor 5 is used for driving the inner shaft 4 of the rigid-flexible coupling transmission shaft.

In one embodiment, the motor 5 is a brushless dc servo motor, and the brushless dc servo motor incorporates a planetary reducer. The brushless direct current motor is a power source of the galvanometer system, the motion output performance of the brushless direct current motor determines the motion capability of the final galvanometer system, and the planetary reducer increases the output torque and changes the output speed.

In one embodiment, the outer shaft 13 of the rigid-flex coupling drive shaft and the motor 5 are placed between the first mounting hole 15 and the second mounting hole 7. Of course, the skilled person can arrange the positions of the outer shaft 13 and the motor 5 according to actual requirements, and can arrange the outer shaft 13 and the motor 5 according to the number and positions of different mounting holes.

In one embodiment, opposite sides of the two mounting holes are provided with a first transparent cover 3 and a second transparent cover 8, and opposite sides of the two mounting holes are provided with a first end cap 1 and a second end cap 10. It is understood that the number and the position of the end cover and the transparent cover can be set reasonably by those skilled in the art according to the arrangement mode of the mounting holes.

The working principle is as follows: under the action of the motor, the rigid-flexible coupling transmission shaft is preferably driven to rotate by the planetary reducer, and the displacement of a friction dead zone of the kinematic pair is compensated by elastic deformation of the flexible hinge between the inner shaft and the outer shaft of the rigid-flexible coupling transmission during starting, so that the quick starting, the high-speed movement and the accurate positioning of the galvanometer system are realized.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A rigid-flexible coupling galvanometer device for a laser weapon, the rigid-flexible coupling galvanometer device comprising: the device comprises a mounting seat, a bearing, a rigid-flexible coupling transmission shaft, a motor, a base and a reflector;

the mounting seat is provided with a mounting hole;

the rigid-flexible coupling transmission shaft comprises: an inner shaft, a flexible portion and an outer shaft, the inner shaft and the outer shaft being connected by the flexible portion;

the bearing is placed in the mounting hole;

the inner shaft of the rigid-flexible coupling transmission shaft is connected with the bearing;

the base is arranged on the outer shaft of the rigid-flexible coupling transmission shaft;

the reflector plate is arranged on the base;

the motor is used for driving the rigid-flexible coupling transmission shaft to rotate;

the reflecting mirror rotates along with the outer shaft of the rigid-flexible coupling transmission shaft.

2. A rigid-flexible coupled mirror apparatus for a laser weapon according to claim 1 wherein the motor is a brushless dc servo motor.

3. The rigid-flexible coupling galvanometer device for laser weapons of claim 2, wherein said brushless DC servo motor incorporates a planetary reducer.

4. A rigid-flexible coupled mirror apparatus for a laser weapon according to claim 1 wherein the flexible portion is a flexible hinge.

5. A rigid-flexible coupling galvanometer device for a laser weapon according to claim 1, wherein said mounting block has two of said mounting holes;

the outer shaft of the rigid-flexible coupling transmission shaft and the motor are placed between the two mounting holes.

6. A rigid-flexible coupling mirror apparatus for a laser weapon according to claim 5 wherein the end of at least one of said mounting holes is flush with the end of said mount.

7. A rigid-flexible coupling galvanometer device for a laser weapon according to claim 5 or 6, characterized in that it further comprises a transparent cover, said cover being arranged on opposite sides of the two mounting holes.

8. A rigid-flexible coupling galvanometer device for a laser weapon according to claim 5 or 6, characterized in that, the rigid-flexible coupling galvanometer device further comprises an end cap, the end cap is arranged at the opposite side of the two mounting holes.

9. A rigid-flexible coupling mirror device for a laser weapon according to any one of claims 1 to 4, characterized in that it further comprises an end cap.

10. A rigid-flexible coupling mirror device for a laser weapon according to any one of claims 1 to 4, characterized in that it further comprises a transparent cover.