A laser gyro inertial navigator

Abstract

The present invention relates to the technical field of laser gyro accessories. Specifically, it relates to a laser gyro inertial navigator, which includes an internal support frame and an external support frame arranged outside the internal support frame. A base is fixedly installed at the bottom of the external support frame. A support assembly is arranged below the internal support frame and the external support frame. The support assembly includes an external gear disk. A first annular groove is arranged at the center position of the upper surface of the external gear disk. An internal gear disk is fixedly installed on the bottom wall of the first annular groove. A second annular groove communicating with the outside is arranged at the center position of the internal gear disk. A support disk is rotatably connected in the second annular groove. A support column arranged vertically is fixedly installed at the center position of the upper surface of the support disk. The internal support frame is fixedly installed on the support column, and the base is arranged on the support disk. The structure of the present invention is simple, and it rotates more smoothly during the rotation process, which is convenient for use.

Description

Technical Field

[0001] The present invention relates to the technical field of laser gyro accessories, and more specifically, to a laser gyro inertial navigator. Background Art

[0002] A laser gyro refers to a device that measures the angular displacement of an object using the optical path difference of laser beams. An inertial navigation system, also known as an inertial reference system, is an autonomous navigation system that does not rely on external information and does not radiate energy to the outside.

[0003] The invention patent with the authorization announcement number CN215491748U discloses a multi-functional inertial navigator, including a connection base and an inertial navigator body. The top center of the connection base is fixedly connected with the inertial navigator body. One side of the inertial navigator body is fixedly connected with several connection plugs. Inside the inertial navigator body, two parallel support plates are fixedly arranged, and the support plates are fixedly welded to the top of the connection base. The top of the rotating rod is rotatably connected with a rotating rod. The outer side of the rotating rod is fixedly connected with a bottom plate by insertion. The top of the bottom plate is fixedly connected with an outer ring. The inner side of the outer ring is rotatably connected with an inner ring. The inner side of the inner ring is fixedly connected with a rotating shaft, and the outer side of the rotating shaft is rotatably connected with a rotor.

[0004] Although this technical solution has the advantages of simple structure and novel design, when it is specifically used, the rotor part is directly rotatably connected to the external disk body, and there is a defect that the friction between the rotor and the corresponding supporting disk body is relatively large during this process, which is not conducive to the smooth rotation of the rotor and brings inconvenience to users. In view of this, we propose a laser gyro inertial navigator. Summary of the Invention

[0005] The purpose of the present invention is to provide a laser gyro inertial navigator to solve the defects mentioned in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A laser gyro inertial navigator, comprising an internal support frame and an external support frame arranged outside the internal support frame. A base is fixedly installed at the bottom of the external support frame. A support assembly is arranged below the internal support frame and the external support frame. The support assembly includes an external gear disk. A first annular groove is arranged at the center position of the upper surface of the external gear disk. An internal gear disk is fixedly installed on the bottom wall of the first annular groove. A second annular groove communicating with the outside is arranged at the center position of the internal gear disk. A support disk is rotatably connected in the second annular groove. A support column arranged vertically is fixedly installed at the center position of the upper surface of the support disk. The internal support frame is fixedly installed on the support column. The base is arranged on the support disk.

[0008] Preferably, the external gear disk and the internal gear disk are concentrically arranged, so that the corresponding cylinder outside can be stably sleeved on the external gear disk and the internal gear disk.

[0009] Preferably, a first bearing is fixedly installed on the groove wall of the second annular groove. The outer ring of the support disk is fixedly installed on the inner ring of the first bearing. By arranging the first bearing, it is beneficial to reduce the friction force and make the support disk rotate more smoothly.

[0010] Preferably, a limit sleeve is fixedly installed on the upper surface of the support disk. The limit sleeve is sleeved on the support column. A second bearing is fixedly installed on the annular side surface of the limit sleeve. The base is fixedly installed on the outer ring of the second bearing. By arranging the second bearing, it is beneficial to reduce the friction force and make the base rotate more stably and smoothly.

[0011] Preferably, convex columns are fixedly installed at both the left and right ends of the external support frame. Limit rods are fixedly installed at the ends of the convex columns, which is convenient for sliding the limit rods in the corresponding tracks on the external shell to realize the guiding operation of the rotation of the external support frame.

[0012] Preferably, a central sleeve is fixedly installed at the top end of the external support frame, which is convenient for sleeving the central sleeve on the corresponding shaft outside to realize the supporting operation of the external support frame.

[0013] Preferably, a plurality of spherical chambers arranged in a ring at equal intervals and communicating with the outside are arranged on the bottom wall of the second annular groove. Ball bearings are embedded in the spherical chambers. The bottom surface of the support disk abuts against the ball bearings. By arranging the ball bearings, it is beneficial to further reduce the friction force between the support disk and the second annular groove and ensure that the support disk rotates more smoothly.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the present invention, the support disk is rotatably connected to the second annular groove, and the base is rotatably connected to the support disk. Additionally, the first bearing and the second bearing are provided to reduce the frictional force, enabling the built-in support frame and the external support frame to rotate more smoothly. Moreover, by providing the second bearing, it can be ensured that the support disk does not drive the external support frame to rotate synchronously when rotating, allowing the built-in support frame and the external support frame to rotate independently, which is convenient for use. This solves the problem that in the specific use of a conventional laser gyro inertial navigation instrument, the rotor part is directly rotatably connected to the external disk body, and there is a large frictional force between the rotor and the corresponding support disk body during this process, which is not conducive to the smooth rotation of the rotor and brings inconvenience to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0017] Figure 2 is a top view of Embodiment 1 of the present invention;

[0018] Figure 3 is an exploded structural diagram of the support assembly in Embodiment 1 of the present invention;

[0019] Figure 4 is a schematic structural diagram of Embodiment 2 of the present invention;

[0020] Figure 5 is inside Embodiment 2 of the present invention Figure 4 is an enlarged view of part A therein.

[0021] The meanings of the various reference numerals in the figures are as follows:

[0022] 1, built-in support frame;

[0023] 2, external support frame; 20, base; 21, convex column; 22, limiting rod; 23, central sleeve;

[0024] 3, support assembly; 30, external gear disk; 31, first annular groove; 32, internal gear disk; 33, second annular groove; 34, first bearing; 35, support column; 36, support disk; 37, limiting sleeve; 38, second bearing;

[0025] 4, spherical cavity; 40, ball. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0029] Embodiment 1

[0030] Please refer to Figures 1 - 3 , this embodiment provides a technical solution: a laser gyro inertial navigator, which includes an internal support frame 1 and an external support frame 2 arranged outside the internal support frame 1. A base 20 is fixedly installed at the bottom of the external support frame 2. A support assembly 3 is arranged below the internal support frame 1 and the external support frame 2. The support assembly 3 includes an external gear disk 30. A first annular groove 31 is arranged at the center position of the upper surface of the external gear disk 30. An internal gear disk 32 is fixedly installed on the bottom wall of the first annular groove 31. A second annular groove 33 communicating with the outside is arranged at the center position of the internal gear disk 32. A support disk 36 is rotatably connected in the second annular groove 33. A support column 35 arranged vertically is fixedly installed at the center position of the upper surface of the support disk 36. The internal support frame 1 is fixedly installed on the support column 35. The base 20 is arranged on the support disk 36. Specifically, a limit sleeve 37 is fixedly installed on the upper surface of the support disk 36. The limit sleeve 37 is sleeved on the support column 35. A second bearing 38 is fixedly installed on the annular side surface of the limit sleeve 37. The base 20 is fixedly installed on the outer ring of the second bearing 38. Since the inner ring and the outer ring of the bearing can rotate independently, by providing the second bearing 38, it is beneficial to reduce the friction force and make the base 20 rotate more stably and smoothly.

[0031] In this embodiment, the external gear disk 30 and the internal gear disk 32 are concentrically arranged, so that the corresponding cylinder in the outside world can be stably sleeved on the external gear disk 30 and the internal gear disk 32.

[0032] Further, a first bearing 34 is fixedly installed on the groove wall of the second annular groove 33, and the outer ring of the support disk 36 is fixedly installed on the inner ring of the first bearing 34. By providing the first bearing 34, it is beneficial to reduce the frictional force and make the rotation of the support disk 36 smoother.

[0033] In addition, convex columns 21 are fixedly installed at both the left and right ends of the external support frame 2, and limit rods 22 are fixedly installed at the ends of the convex columns 21, which facilitates sliding the limit rods 22 in the corresponding tracks on the external housing to realize the guiding operation of the rotation of the external support frame 2.

[0034] It should be noted that a central sleeve 23 is fixedly installed at the top of the external support frame 2, which is convenient for sleeving the central sleeve 23 on the corresponding external shaft to realize the supporting operation of the external support frame 2.

[0035] In the specific use process of this embodiment, the external gear disk 30 is fixedly installed on the external support, and at the same time, the external shaft passes through the central sleeve 23 and is fixedly installed on the central sleeve 23. After the external shaft rotates, it can drive the external support frame 2 to rotate. In addition, the first bearing 34 and the second bearing 38 can reduce the frictional force between the support disk 36 and the second annular groove 33, and between the base 20 and the limit sleeve 37, making the rotation of the internal support frame 1 and the external support frame 2 smoother.

[0036] Embodiment 2

[0037] Please refer to Figures 4 - 5 , the difference between this embodiment and Embodiment 1 is that: a plurality of spherical chambers 4 arranged at equal intervals in a ring shape and communicating with the outside are provided on the bottom wall of the second annular groove 33. Ball bearings 40 are embedded in the spherical chambers 4, and the bottom surface of the support disk 36 abuts against the ball bearings 40. The ball bearings 40 can roll in the spherical chambers 4. By providing the ball bearings 40, it is beneficial to further reduce the frictional force between the support disk 36 and the second annular groove 33 and ensure that the rotation of the support disk 36 is smoother.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser gyro inertial navigation instrument, comprising an internal support frame (1) and an external support frame (2) arranged outside the internal support frame (1), characterized in that: The bottom of the external support frame (2) is fixedly installed with a base (20). A support assembly (3) is arranged below the internal support frame (1) and the external support frame (2). The support assembly (3) includes an external gear disc (30). A first annular groove (31) is arranged at the central position of the upper surface of the external gear disc (30). An internal gear disc (32) is fixedly installed on the bottom wall of the first annular groove (31). A second annular groove (33) communicating with the outside is arranged at the central position of the internal gear disc (32). A support disc (36) is rotatably connected in the second annular groove (33). A support column (35) arranged vertically is fixedly installed at the central position of the upper surface of the support disc (36). The internal support frame (1) is fixedly installed on the support column (35). The base (20) is arranged on the support disc (36); A limit sleeve (37) is fixedly installed on the upper surface of the support disc (36). The limit sleeve (37) is sleeved on the support column (35). A second bearing (38) is fixedly installed on the annular side surface of the limit sleeve (37). The base (20) is fixedly installed on the outer ring of the second bearing (38); Convex columns (21) are fixedly installed at both the left and right ends of the external support frame (2). A limit rod (22) is fixedly installed at the end of the convex column (21); A central sleeve (23) is fixedly installed at the top end of the external support frame (2).

2. The laser gyro inertial navigation instrument according to claim 1, wherein: The external gear disc (30) and the internal gear disc (32) are concentrically arranged.

3. The laser gyro inertial navigation instrument according to claim 1, characterized in that: A first bearing (34) is fixedly installed on the groove wall of the second annular groove (33). The outer ring of the support disc (36) is fixedly installed on the inner ring of the first bearing (34).

4. The laser gyro inertial navigator according to claim 1, characterized in that: A plurality of spherical chambers (4) arranged in an annular and equally spaced manner and communicating with the outside are arranged on the bottom wall of the second annular groove (33). A ball (40) is embedded in the spherical chamber (4). The bottom surface of the support disc (36) abuts against the ball (40).

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