Combined device of three-axis integrated laser gyroscope

Abstract

The invention discloses a three-axis integrated laser gyroscope combination device, and relates to the technical field of gyroscopes, the three-axis integrated laser gyroscope combination device comprises a combination disc, the combination disc is provided with three placing grooves, the two placing grooves are located on the X axis and the Y axis of the upper surface of the combination disc, and the X axis and the Y axis of the upper surface of the combination disc are perpendicular to each other. One of the three placement grooves is located on the upper surface of the combined disc, the other placement groove is located on the Z axis of the lower surface of the combined disc, the three placement grooves are internally and correspondingly provided with an X-axis gyroscope, a Y-axis gyroscope and a Z-axis gyroscope respectively, the X-axis gyroscope, the Y-axis gyroscope and the Z-axis gyroscope are installed on the same combined disc to be combined into a three-axis integrated design, interference isolation is conducted through isolation plates, and the three-axis integrated design is achieved. According to the invention, errors are reduced, the overall stability is improved, the installation space is saved, the cost is reduced, the maintenance by workers is facilitated, the isolation plate also provides an effective protection effect, and the buffer effect is provided through the buffer mechanism, a buffer rod and a buffer spring.

Description

Technical Field

[0001] The present invention relates to the technical field of gyroscopes, and in particular to a combination device of a three-axis integrated laser gyroscope. Background Art

[0002] The laser gyroscope is an optical gyroscope based on the Sagnac effect, which is used to measure the angular rate of rotation of an object relative to the inertial space. The basic principle is that when a ring laser rotates in the inertial space, the light running in the clockwise and counterclockwise directions will produce an optical path difference that is linearly related to the rotation. By detecting the real-time change in the phase of the ring laser output light, the angular rate of rotation of the object can be obtained. The combination device of the three-axis integrated laser gyroscope is a device for measuring the angular rate of rotation of an object in three-dimensional space. It is usually composed of three single-axis laser gyroscopes, each of which is responsible for measuring the angular rate of rotation of one axis. The design of this combination device is to improve the measurement accuracy and stability, while reducing the mutual interference between the three axes.

[0003] In the prior art, a three-axis integrated laser gyroscope assembly is usually composed of three single-axis separate laser gyroscopes. Although this reduces mutual interference, it has a small assembly space and cost utilization rate, low stability, and is not suitable for large-scale mass production and use. It is also difficult for staff to maintain. Summary of the invention

[0004] The present invention aims to provide a combination device of a three-axis integrated laser gyroscope to solve the problems of low space, cost and stability utilization of the above-mentioned three single-axis laser gyroscope combination.

[0005] The present invention is achieved through the following technical solutions: The combined device of the three-axis integrated laser gyroscope includes: A combination disc, wherein a placement groove is provided on the combination disc, wherein there are three placement grooves, two of which are located on the X-axis and Y-axis of the upper surface of the combination disc, and the other placement groove is located on the Z-axis of the lower surface of the combination disc, wherein an X-axis gyroscope, a Y-axis gyroscope and a Z-axis gyroscope are respectively provided in the three placement grooves, an isolation plate is threadedly fixedly installed on the upper surface of the combination disc, and the isolation plate separates the gyroscopes on the upper surface of the combination disc, and a heat dissipation fin is fixedly installed on the top of the isolation plate, thereby reducing errors, improving overall stability, saving installation space, reducing costs, and facilitating maintenance by staff.

[0006] Furthermore, a pressure plate is fixedly installed on the isolation plate, and an arc-shaped push rod is penetrated and slidably installed on the combined disc to prevent the Z-axis gyroscope from detaching.

[0007] Furthermore, the top and bottom of the arc push rod are both set to be spherical, the bottom of the arc push rod is set close to the outside of the Z-axis gyroscope, an elastic element is provided between the top of the arc push rod and the upper surface of the combined disc, and the spherical end of the top of the arc push rod is set close to the bottom of the pressure plate to reduce friction damage.

[0008] Furthermore, an arc-shaped connecting rod is fixedly installed on the outside of the isolation plate, a fixing box is fixedly installed on the outside of the arc-shaped connecting rod, and an arc-shaped protective plate is fixedly installed on the bottom of the fixing box to prevent the X-axis gyroscope and the Y-axis gyroscope from falling off.

[0009] Furthermore, the arc-shaped protection plate is arranged outside the X-axis gyroscope, and a gap is provided between the arc-shaped protection plate and the outside of the X-axis gyroscope to provide vibration tolerance.

[0010] Furthermore, a buffer mechanism is also provided on the fixed box, and the buffer mechanism includes a buffer spring, the top of the buffer spring is fixedly installed on the inner wall of the top of the fixed box, the bottom of the buffer spring is fixedly installed on the top of the connecting plate, a buffer rod is fixedly installed on the bottom of the connecting plate, a rubber column is fixedly installed on the bottom of the buffer rod, and the buffer spring provides buffering force.

[0011] Furthermore, a cavity is formed on the arc-shaped protection plate, the bottom of the buffer rod and the rubber column extend out of the cavity, and the rubber column is arranged in the gap between the arc-shaped protection plate and the outside of the X-axis gyroscope to facilitate the movement of the buffer rod.

[0012] Furthermore, there are two rubber columns, which are symmetrically distributed about the buffer rod. The bottom of the rubber column fits the outer setting of the X-axis gyroscope. The symmetrical setting ensures the stability of the rubber column contact and does not cause the gyroscope to deviate.

[0013] Furthermore, a rotating rod is rotatably mounted on the buffer rod, an elastic element is provided between the outside of the rotating rod and the outside of the buffer rod, and one end of the rotating rod away from the buffer rod is set to be spherical, and the rotating rod can return to its initial position due to elastic force.

[0014] Furthermore, arc-shaped protrusions are fixedly installed on the inner walls on the left and right sides of the fixed box, and the spherical end of the rotating rod away from the buffer rod is arranged close to the arc-shaped protrusion. The friction and extrusion between the rotating rod and the arc-shaped protrusion produce a small-amplitude rapid vibration to achieve the effect of cleaning dust and other impurities, thereby improving the overall cleaning and maintenance efficiency.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention installs an X-axis gyroscope, a Y-axis gyroscope and a Z-axis gyroscope on the same combined disc to form a three-axis integrated design, and uses an isolation plate to isolate interference, thereby reducing errors, improving overall stability, saving installation space, reducing costs, and facilitating maintenance by staff. The isolation plate also provides effective protection effects; 2. The present invention is provided with a buffer mechanism. When the combined disc is subjected to external vibration and generates mechanical vibration which is transmitted to the gyroscope, the gyroscope will push the rubber column to drive the buffer rod to move upward. The buffer rod will push the connecting plate to move upward. The connecting plate will compress the buffer spring, so that the buffer spring can provide a buffer force to slow down the movement of the buffer rod, and then the vibration displacement of the X-axis gyroscope can be slowed down through the rubber column, thereby playing a good buffer protection role. 3. The present invention provides a rotating rod on the buffer rod, which will cause a small-amplitude rapid impact vibration during the friction and extrusion process between the rotating rod and the arc-shaped protrusion. The frequency is fast and the amplitude is small. The vibration is transmitted to the buffer rod and the fixed box, which is convenient for cleaning dust and other impurities attached to the buffer rod and the fixed box, thereby preventing dust and other impurities from adhering to the inner wall of the buffer rod and the fixed box to affect the normal operation of the buffer mechanism, and shaking off dust and other impurities to the outside, reducing the cleaning difficulty of the staff and improving the overall cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings: Figure 1 It is a schematic diagram of the overall external structure of the present invention; Figure 2 It is a schematic diagram of the overall bottom view of the external structure; Figure 3 This is a schematic diagram of the external structure of the combined disc when viewed from above; Figure 4 This is a schematic diagram of the external structure of the combined disc from the bottom view; Figure 5 It is a schematic diagram of the external local structure of the isolation board; Figure 6 Schematic diagram of the external local structure of the fixed box.

[0017] The reference numerals represent: 1-combination disc, 2-placing groove, 3-X-axis gyroscope, 4-Y-axis gyroscope, 5-Z-axis gyroscope, 6-isolation plate, 7-heat sink fin, 8-pressure plate, 9-arc push rod, 10-arc connecting rod, 11-fixing box, 12-arc protection plate, 13-cavity, 14-buffer spring, 15-connecting plate, 16-buffer rod, 17-rubber column, 18-rotating rod, 19-arc protrusion. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation modes and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0019] like Figures 1 to 6 As shown, the present invention provides a combination device of a three-axis integrated laser gyroscope, comprising: A combination disc 1 is provided with placement grooves 2, and there are three placement grooves 2. Two placement grooves 2 are located on the X-axis and Y-axis of the upper surface of the combination disc 1, and another placement groove 2 is located on the Z-axis of the lower surface of the combination disc 1. An X-axis gyroscope 3, a Y-axis gyroscope 4 and a Z-axis gyroscope 5 are respectively arranged in the three placement grooves 2, and finally a three-axis integrated laser gyroscope combination device is formed. An isolation plate 6 is fixedly installed on the upper surface of the combination disc 1 by threaded connection. The isolation plate 6 separates the gyroscopes on the upper surface of the combination disc 1 to avoid mutual interference. A heat dissipation fin 7 is fixedly installed on the top of the isolation plate 6 to facilitate heat dissipation. A pressure plate 8 is fixedly installed on the isolation plate 6, and an arc-shaped push rod 9 is penetrated and slidably installed on the combined disc 1. The top and bottom of the arc-shaped push rod 9 are both set to be spherical to reduce the contact area and reduce damage. The bottom of the arc-shaped push rod 9 is set close to the outside of the Z-axis gyroscope 5, and an elastic element is provided between the top of the arc-shaped push rod 9 and the upper surface of the combined disc 1. The elastic element here uses a metal spring, so that the sliding of the arc-shaped push rod 9 has an elastic restoring force. In the absence of external force, the arc-shaped push rod 9 can return to its initial position. The spherical end of the top of the arc-shaped push rod 9 is set close to the bottom of the pressure plate 8 to facilitate extrusion contact. An arc-shaped connecting rod 10 is fixedly installed on the outside of the isolation plate 6, and a fixed box 11 is fixedly installed on the outside of the arc-shaped connecting rod 10. An arc-shaped protective plate 12 is fixedly installed on the bottom of the fixed box 11. The arc-shaped protective plate 12 is arranged on the outside of the X-axis gyroscope 3, and a gap is provided between the arc-shaped protective plate 12 and the outside of the X-axis gyroscope 3 to provide vibration tolerance.

[0020] In the above technical scheme, an X-axis gyroscope 3, a Y-axis gyroscope 4 and a Z-axis gyroscope 5 are simultaneously arranged on a combination disk 1 and are arranged toward the X-axis, the Y-axis and the Z-axis respectively, so as to form a three-axis integrated laser gyroscope combination device, and an isolation plate 6 is added thereon. The isolation plate can isolate the influence of the vibration and magnetic field interference of the X-axis gyroscope 3 on the Y-axis and Z-axis gyroscopes to a certain extent, and vice versa, which helps to maintain the relative stability of the working environment of each gyroscope, thereby improving the measurement stability of the entire combination device; at the same time, since the three gyroscopes are in a relatively fixed physical relationship, the error of a single gyroscope can be reduced by collaborative calibration. For example, during the measurement process, if a gyroscope has a certain drift error due to temperature changes or its own slight manufacturing differences, the data of the other two gyroscopes can be assisted in correction to a certain extent, because the external interference factors (such as overall vibration, temperature field changes, etc.) to which they are simultaneously subjected are similar; the three laser gyroscopes are integrated into a single disk 1, and the three gyroscopes are connected to the disk 1. The three gyroscopes are installed on one board and arranged reasonably to face different axes. Compared with installing three gyroscopes separately, the overall space occupation is very advantageous. This is very important in some application scenarios with strict space requirements, such as in small aircraft or precision instruments with limited space. This compact design can leave more space for other components. In the manufacturing process, this integrated design can reduce production costs to a certain extent. For example, in the assembly process, since the three gyroscopes are installed and debugged on one board, some repeated operation steps can be reduced compared with installing and debugging three independent gyroscopes separately, thereby saving labor costs and time costs. From the perspective of maintenance, this centralized design allows maintenance personnel to inspect and maintain the entire device more conveniently. When a problem occurs, technicians can quickly locate the gyroscope with the problem, and since they are in a relatively centralized structure, the operation of replacing or repairing parts will also be more convenient.When installing the isolation plate 6, when the isolation plate 6 is placed on the combined disc 1, the isolation plate 6 will drive the pressure plate 8 to press the arc push rod 9, and the arc push rod 9 will be squeezed and rotated downward, so that the bottom of the arc push rod 9 can fit the outside of the Z-axis gyroscope 5, and then the Z-axis gyroscope is fixed, and the isolation plate 6 can be fixed by bolts. After the isolation plate 6 is placed, the isolation plate 6 will also drive the arc connecting rod 10, the fixing box 11 and the arc protection plate 12 to be located on the top of the X-axis gyroscope 3 and the Y-axis gyroscope 4 to prevent the X-axis gyroscope from The X-axis gyroscope 3 and the Y-axis gyroscope 4 fall off, achieving the protection effect, thereby making the X-axis gyroscope 3, the Y-axis gyroscope 4 and the Z-axis gyroscope 5 relatively fixedly installed. Finally, by installing the X-axis gyroscope 3, the Y-axis gyroscope 4 and the Z-axis gyroscope 5 on the same combination disc 1, a three-axis integrated design is formed, and interference isolation is performed through the isolation plate 6, which reduces the error, improves the overall stability, saves the installation space, reduces the cost, and facilitates the maintenance of the staff. The isolation plate 6 also provides an effective protection effect. ;

[0021] like Figure 5 and Figure 6 As shown, in the present invention, a buffer mechanism is also provided on the fixed box 11, and the buffer mechanism includes a buffer spring 14, the top of the buffer spring 14 is fixedly installed on the inner side wall of the top of the fixed box 11, the bottom of the buffer spring 14 is fixedly installed on the top of the connecting plate 15, and a buffer rod 16 is fixedly installed at the bottom of the connecting plate 15. A cavity 13 is opened on the arc protection plate 12, and a rubber column 17 is fixedly installed at the bottom of the buffer rod 16. The bottom of the buffer rod 16 and the rubber column 17 both extend out of the cavity 13. The rubber column 17 is arranged in the gap between the arc protection plate 12 and the outside of the X-axis gyroscope 3. There are two rubber columns 17, and the two rubber columns 17 are connected. The buffer rod 16 is symmetrically distributed on the left and right sides, and the bottom of the rubber column 17 is arranged in contact with the outside of the X-axis gyroscope 3. A rotating rod 18 is rotatably installed on the buffer rod 16. An elastic element is provided between the outside of the rotating rod 18 and the outside of the buffer rod 16, so that the rotation of the rotating rod 18 has an elastic restoring force. In the absence of external force, the rotating rod 18 can be restored to its initial position due to the elastic force. The end of the rotating rod 18 away from the buffer rod 16 is set to a spherical shape to facilitate contact, friction and extrusion. Arc-shaped protrusions 19 are fixedly installed on the inner walls on the left and right sides of the fixed box 11, and the spherical end of the rotating rod 18 away from the buffer rod 16 is arranged close to the arc-shaped protrusion 19.

[0022] In the above technical solution, when the combined disc 1 is subjected to external vibration and generates mechanical vibration which is transmitted to the gyroscope, the X-axis gyroscope 3 will vibrate due to the transmitted mechanical vibration, so that when the X-axis gyroscope 3 vibrates upward, the X-axis gyroscope 3 will push the rubber column 17 to move upward. Due to the material of the rubber column 17, the extrusion between the rubber column 17 and the X-axis gyroscope 3 will not cause damage to the gyroscope. The rubber column 17 will drive the buffer rod 16 to move upward, and the buffer rod 16 will push the connecting plate 15 upward. When the buffer rod 16 moves upward, the connecting plate 15 will compress the buffer spring 14, so that the buffer spring 14 can provide a buffer force to slow down the movement of the buffer rod 16, and then the vibration displacement of the X-axis gyroscope 3 can be slowed down by the rubber column 17, which plays a good buffering protection role. When the buffer rod 16 moves, the buffer rod 16 will also drive the rotating rod 18 to follow the movement. When the buffer rod 16 drives the rotating rod 18 to move to the arc-shaped protrusion 19, it continues to move, and the spherical end of the rotating rod 18 will generate friction with the arc-shaped protrusion 19 The vibration is transmitted to the buffer rod 16 and the fixed box 11, which is convenient for cleaning dust and other impurities attached to the buffer rod 16 and the fixed box 11, thereby preventing dust and other impurities from adhering to the inner wall of the buffer rod 16 and the fixed box 11 and affecting the normal operation of the buffer mechanism, and shaking off dust and other impurities to the outside, reducing the cleaning difficulty of the staff and improving the overall cleaning efficiency. Finally, by providing the buffer rod 16 and the buffer spring 14, during the vibration of the X-axis gyroscope 3, the rubber column 17 and the buffer rod 16 form an extrusion force on the buffer spring 14 to slow down the vibration, and at the same time, the buffer rod 16 is used to drive the rotating rod 18 to move, so that the rotating rod 18 and the arc protrusion 19 are rubbed and squeezed to produce a small amplitude and rapid vibration to achieve the effect of cleaning dust and other impurities, thereby improving the overall cleaning and maintenance efficiency.

[0023] In summary, by installing the X-axis gyroscope 3, the Y-axis gyroscope 4 and the Z-axis gyroscope 5 on the same combination disc 1 to form a three-axis integrated design, and using the isolation plate 6 for interference isolation, the error is reduced, the overall stability is improved, and the installation space is saved, the cost is reduced, and it is convenient for the staff to carry out maintenance. The isolation plate 6 also provides an effective protection effect. Through the buffer mechanism, the buffer rod 16 and the buffer spring 14 are used to provide a buffer effect. At the same time, the friction and extrusion between the rotating rod 18 and the arc-shaped protrusion 19 are used to improve the overall cleaning and maintenance efficiency.

[0024] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A three-axis integrated laser gyroscope assembly, characterized in that: include: A combination disc (1), wherein a placement groove (2) is provided on the combination disc (1), wherein the number of the placement grooves (2) is three, wherein two of the placement grooves (2) are located on an X-axis and a Y-axis of the upper surface of the combination disc (1), and another of the placement grooves (2) is located on a Z-axis of the lower surface of the combination disc (1), wherein an X-axis gyroscope (3), a Y-axis gyroscope (4) and a Z-axis gyroscope (5) are respectively arranged in the three placement grooves (2), wherein an isolation plate (6) is threadedly fixedly mounted on the upper surface of the combination disc (1), wherein the isolation plate (6) separates the gyroscopes on the upper surface of the combination disc (1), and a heat dissipation fin (7) is fixedly mounted on the top of the isolation plate (6).

2. The three-axis integrated laser gyroscope assembly device according to claim 1, characterized in that: A pressure plate (8) is fixedly mounted on the isolation plate (6), and an arc-shaped push rod (9) is penetrated and slidably mounted on the combined disc (1).

3. The three-axis integrated laser gyroscope assembly device according to claim 2, characterized in that: The top and bottom of the arc-shaped push rod (9) are both arranged in a spherical shape, the bottom of the arc-shaped push rod (9) is arranged close to the outside of the Z-axis gyroscope (5), an elastic element is arranged between the top of the arc-shaped push rod (9) and the upper surface of the combined disc (1), and the spherical end of the top of the arc-shaped push rod (9) is arranged close to the bottom of the pressure plate (8).

4. The three-axis integrated laser gyroscope assembly device according to claim 3, characterized in that: An arc-shaped connecting rod (10) is fixedly mounted on the outside of the isolation plate (6), a fixing box (11) is fixedly mounted on the outside of the arc-shaped connecting rod (10), and an arc-shaped protective plate (12) is fixedly mounted on the bottom of the fixing box (11).

5. The three-axis integrated laser gyroscope assembly device according to claim 4, characterized in that: The arc-shaped protection plate (12) is arranged outside the X-axis gyroscope (3), and a gap is provided between the arc-shaped protection plate (12) and the outside of the X-axis gyroscope (3).

6. The three-axis integrated laser gyroscope assembly device according to claim 5, characterized in that: The fixed box (11) is also provided with a buffer mechanism, which comprises a buffer spring (14), the top of the buffer spring (14) being fixedly mounted on the inner side wall of the top of the fixed box (11), the bottom of the buffer spring (14) being fixedly mounted on the top of the connecting plate (15), the bottom of the connecting plate (15) being fixedly mounted with a buffer rod (16), and the bottom of the buffer rod (16) being fixedly mounted with a rubber column (17).

7. The three-axis integrated laser gyroscope assembly device according to claim 6, characterized in that: A cavity (13) is formed on the arc-shaped protection plate (12); the bottom of the buffer rod (16) and the rubber column (17) both extend out of the cavity (13); and the rubber column (17) is disposed in a gap between the arc-shaped protection plate (12) and the outside of the X-axis gyroscope (3).

8. The three-axis integrated laser gyroscope assembly device according to claim 7, characterized in that: There are two rubber columns (17), and the two rubber columns (17) are symmetrically distributed with respect to the buffer rod (16). The bottom of the rubber column (17) is arranged to fit the outside of the X-axis gyroscope (3).

9. The three-axis integrated laser gyroscope assembly device according to claim 8, characterized in that: A rotating rod (18) is rotatably mounted on the buffer rod (16), an elastic element is provided between the outside of the rotating rod (18) and the outside of the buffer rod (16), and one end of the rotating rod (18) away from the buffer rod (16) is spherical.

10. The three-axis integrated laser gyroscope assembly device according to claim 9, characterized in that: Arc-shaped protrusions (19) are fixedly mounted on the inner side walls on the left and right sides of the fixed box (11), and the spherical end of the rotating rod (18) away from the buffer rod (16) is arranged close to the arc-shaped protrusion (19).

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