Photoelectric rotary table

Abstract

The utility model relates to the field of photoelectric rotary tables, and discloses a photoelectric rotary table which comprises a base. The suspension is rotatably arranged on the base; the top seat is rotatably arranged on the suspension frame; the extension direction of an azimuth rotating shaft of the azimuth transmission mechanism is parallel to the first axis and is rotatably arranged on the suspension, a first sun gear is fixed to the base and is coaxial with the first axis, a second sun gear is fixed to the top base and is coaxial with the first axis, and a first planet gear is coaxially connected with the azimuth rotating shaft and is in transmission connection with the first sun gear. The second planet gear is coaxially connected with the azimuth rotating shaft and is in transmission connection with the second sun gear; a pitching rotating shaft of the pitching shaft system is rotatably arranged on the suspension frame; the first pitching frame is fixed at one end of the pitching rotating shaft; and the second pitching frame is fixed at the other end of the pitching rotating shaft. The azimuth rotating shaft structure is higher in reliability and does not shield a pitching view field; the transmission ratio of the first sun gear to the first planet gear or the second sun gear to the second planet gear can be flexibly designed, the structure is compact, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of photoelectric turntables, in particular to a photoelectric turntable. Background Art

[0002] The two-axis optoelectronic turntable is currently the predominant form factor, offering two degrees of freedom (DOF) in azimuth and elevation. It is widely used in military and civilian applications such as simulation testing and optoelectronic tracking. A three-axis optoelectronic turntable, in addition to the traditional two-axis requirement for mounting optoelectronic equipment at the elevation end, also incorporates a second azimuth axis at the top of the rotating turntable for mounting antennas or other equipment. This effectively consists of three axis systems: elevation, down, and up. The up axis can be fixed or rotate at varying directions and speeds.

[0003] There are two forms of traditional two-axis turntables: one is an external azimuth and internal pitch layout, in which the U-shaped azimuth frame rotates 360 degrees in azimuth, and the O-shaped load frame supported internally rotates in pitch; the other is an internal azimuth and external pitch layout, in which the O-shaped azimuth frame rotates 360 degrees in azimuth, and the inverted U-shaped pitch load frame rotates in pitch above the O-shaped azimuth frame, or the two pitch frames at both ends are connected by a pitch axis and hung on the left and right outsides of the azimuth frame for pitch rotation.

[0004] For the development and design of a three-axis optoelectronic turntable, no matter which layout of the two-axis optoelectronic turntable is used, the 360° rotation of the azimuth axis system makes it difficult to install the axis system on the top of the turntable. In the related art, a direct solution is to use a crankshaft connection on the basis of the two-axis optoelectronic turntable, and install the crankshaft from the fixed azimuth base to the top of the turntable outside the azimuth pitch rotation envelope, similar to a C-shaped crankshaft, thereby establishing the base of the second azimuth axis. However, the disadvantages of this method are obvious. First, the crankshaft will inevitably block part of the field of view of the pitch optoelectronic load. Second, the crankshaft has limited rigidity and cannot be used to install heavy or large top loads. Third, the processing and manufacturing process and economy of the crankshaft are not high, and the accuracy is also difficult to guarantee. Utility Model Content

[0005] Based on this, it is necessary to provide a photoelectric turntable to address the existing problems, aiming to solve or improve at least one of the above problems.

[0006] The present application provides a photoelectric turntable, which includes:

[0007] base;

[0008] a suspension, rotatably disposed on the top of the base about a first axis;

[0009] a top seat rotatably disposed on the bottom of the suspension frame about the first axis;

[0010] An azimuth transmission mechanism includes a first sun gear, a second sun gear, a first planetary gear, a second planetary gear, and an azimuth rotating shaft. The azimuth rotating shaft extends in a direction parallel to the first axis and is rotatably disposed on the suspension. The first sun gear is fixed to the base and is coaxial with the first axis. The second sun gear is fixed to the top seat and is coaxial with the first axis. The first planetary gear is coaxially connected to the azimuth rotating shaft and is in transmission connection with the first sun gear. The second planetary gear is coaxially connected to the azimuth rotating shaft and is in transmission connection with the second sun gear.

[0011] A pitch axis system, comprising a pitch rotation axis, wherein the pitch rotation axis is rotatably disposed on the suspension;

[0012] A first pitch frame, fixed to one end of the pitch rotation axis;

[0013] The second pitch frame is fixed to the other end of the pitch rotation axis.

[0014] In some embodiments, the first planet gear is coaxially connected to the azimuth rotation shaft and directly meshes with the first sun gear, and the second planet gear is coaxially connected to the azimuth rotation shaft and directly meshes with the second sun gear.

[0015] In some embodiments, the optoelectronic turntable further comprises:

[0016] The transfer planetary gear is rotatably arranged on the suspension, the second planetary gear is directly engaged with the transfer planetary gear, and the second sun gear is directly engaged with the transfer planetary gear.

[0017] In some embodiments, the optoelectronic turntable further comprises:

[0018] An azimuth brake is fixed to the suspension, and the azimuth brake is used for braking connection with the azimuth rotating shaft.

[0019] In some embodiments, the photoelectric turntable further comprises:

[0020] A driving gear fixedly connected to the output shaft of the azimuth brake;

[0021] The driven gear is coaxially fixed to the azimuth rotating shaft, and the driven gear is directly meshed with the driving gear.

[0022] In some embodiments, the optoelectronic turntable further comprises:

[0023] A first photoelectric load is arranged on the top seat;

[0024] a second photoelectric load, disposed on the first pitch frame;

[0025] The third photoelectric load is arranged on the second pitching frame.

[0026] In some embodiments, the optoelectronic turntable further comprises:

[0027] a first rotating shaft, the base being rotatably connected to the suspension via the first rotating shaft;

[0028] A second rotating shaft, through which the top seat is rotatably connected to the suspension.

[0029] In some embodiments, the optoelectronic turntable further comprises:

[0030] A shaft sleeve, wherein the suspension is provided with a sleeve body insertion hole, and the shaft sleeve is inserted and fixed in the sleeve body insertion hole;

[0031] At least one pair of bearings, the azimuth shaft passes through the shaft sleeve and is rotatably engaged with the shaft sleeve through at least one pair of bearings.

[0032] In some embodiments, the pitch axis system further includes:

[0033] At least one pitch drive source is fixed to the suspension, and at least one pitch drive source is drivingly connected to the pitch rotation axis.

[0034] In some embodiments, the first sun gear is detachably connected to the base, and the first planetary gear is detachably connected to the azimuth shaft; and / or the second sun gear is detachably connected to the top seat, and the second planetary gear is detachably connected to the azimuth shaft.

[0035] Beneficial effects of the utility model:

[0036] The photoelectric turntable of the present invention is designed with a unique azimuth transmission mechanism, in which the extension direction of the azimuth rotation shaft of the azimuth transmission mechanism is parallel to the first axis and is rotatably arranged on the suspension, the first sun gear is fixed to the base and is coaxial with the first axis, the second sun gear is fixed to the top seat and is coaxial with the first axis, the first planetary gear is coaxially connected to the azimuth rotation shaft and is connected to the first sun gear transmission, and the second planetary gear is coaxially connected to the azimuth rotation shaft and is connected to the second sun gear transmission.

[0037] Compared with the existing photoelectric turntable, the extension direction of the azimuth axis of the present invention is parallel to the first axis, which does not block the first pitch frame and the second pitch frame at all, and thus does not block the pitch field of view, and has better efficacy;

[0038] In addition, the first planetary gear is coaxially connected to the azimuth rotating shaft and is transmission-connected to the first sun gear, the second planetary gear is coaxially connected to the azimuth rotating shaft and is transmission-connected to the second sun gear, the transmission between the first planetary gear and the first sun gear has a first transmission ratio, and the transmission between the second planetary gear and the second sun gear has a second transmission ratio. By matching different transmission ratios or indirect gear transmission, the top seat and the suspension can be designed to rotate forward, reverse, or be stationary relative to the base, and at different speeds, which has richer and more powerful functions;

[0039] In addition, the first pitch frame is fixed to one end of the pitch shaft, and the second pitch frame is fixed to the other end of the pitch shaft, so that the space at both ends of the pitch shaft is fully utilized to arrange the first pitch frame and the second pitch frame, resulting in a compact structure and facilitating reduction of the size in this direction.

[0040] In addition, the azimuth rotating shaft of the azimuth transmission mechanism extends in a direction parallel to the first axis and is rotatably arranged on the suspension, eliminating the need for a crankshaft design structure, resulting in a higher structural reliability of the azimuth rotating shaft.

[0041] In addition, the optoelectronic turntable of this structure only needs to design a set of pitch drive for the pitch axis and a set of azimuth drive for the suspension and top seat. The rotation or constraint of the top seat can be achieved through the transmission mechanism purely mechanically, without power and feedback. This is equivalent to removing the control system of the top seat, avoiding the difficulty of dual azimuth control and reducing unreliable factors.

[0042] In addition, compared with the traditional solution of combining a two-axis photoelectric turntable with a single-axis azimuth turntable, the transmission mechanism of the present application adopts a purely mechanical driven linkage method, which can greatly reduce manufacturing costs; on the one hand, it reduces expensive equipment such as controllers and reduces hardware costs; on the other hand, the mechanical structure is safe and reliable, reducing the trial and error costs in use and debugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0044] Figure 1 A schematic perspective view of a photoelectric turntable provided in accordance with an embodiment of the present application;

[0045] Figure 2 A schematic cross-sectional view of a photoelectric turntable provided in an embodiment of the present application;

[0046] Figure 3A partially disassembled schematic diagram of a photoelectric turntable for illustrating the transmission relationship of an azimuth transmission mechanism provided in an embodiment of the present application;

[0047] Figure 4 A schematic diagram of a photoelectric turntable provided in an embodiment of the present application, with the top seat, first photoelectric load, second sun gear, and second rotating shaft hidden;

[0048] Figure 5 A schematic diagram of a top seat, a first photoelectric load, a second sun gear, and a second rotating shaft of a photoelectric turntable provided in an embodiment of the present application;

[0049] Figure 6 A schematic diagram of a partial structure of a photoelectric turntable provided in an embodiment of the present application with the base, top seat, and first photoelectric load hidden;

[0050] Figure 7 This is a schematic diagram of the partially disassembled structure of the azimuth transmission mechanism and suspension provided in the implementation manner of the present application.

[0051] Reference numerals:

[0052] 1. Base; 2. Suspension; 210. Sleeve socket; 3. Top seat; 4. Azimuth transmission mechanism; 410. First sun gear; 420. Second sun gear; 430. First planetary gear; 440. Second planetary gear; 450. Azimuth rotation axis; 460. Azimuth drive motor; 5. Pitch axis system; 510. Pitch rotation axis; 520. Pitch drive source; 6. First pitch frame; 7. Second pitch frame; 8. Azimuth brake; 9. Driving gear; 10. Driven gear; 11. First photoelectric load; 12. Second photoelectric load; 13. Third photoelectric load; 14. First rotation shaft; 15. Second rotation shaft; 16. Bushing; 17. Bearing. DETAILED DESCRIPTION

[0053] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0056] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can mean connected, detachably connected, or integrated; mechanically connected or electrically connected; directly connected or indirectly connected through an intermediate medium; and can mean internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0057] In the present invention, unless otherwise expressly specified or limited, a feature "above" or "below" a second feature may be in direct contact with the second feature, or in indirect contact with the second feature through an intermediary. Furthermore, "above," "above," and "above" a feature may mean that the feature is directly above or diagonally above the second feature, or simply means that the feature is at a higher level than the second feature. "below," "below," and "below" a feature may mean that the feature is directly below or diagonally below the second feature, or simply means that the feature is at a lower level than the second feature.

[0058] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0059] refer to Figure 1-3 The embodiment of the present application provides a photoelectric turntable, which includes a base 1, a suspension 2, a top seat 3, an azimuth transmission mechanism 4, a pitch axis system 5, a first pitch frame 6, and a second pitch frame 7; the suspension 2 is rotatable around a first axis and is arranged at the top of the base 1; the top seat 3 is rotatable around the first axis and is arranged at the bottom of the suspension 2; the azimuth transmission mechanism 4 includes a first sun gear 410, a second sun gear 420, a first planetary gear 430, a second planetary gear 440, and an azimuth rotation shaft 450, the extension direction of the azimuth rotation shaft 450 is parallel to the first axis and is rotatably arranged on the suspension 2, A sun gear 410 is fixed to the base 1 and is coaxial with the first axis. A second sun gear 420 is fixed to the top base 3 and is coaxial with the first axis. A first planetary gear 430 is coaxially connected to the azimuth shaft 450 and is in driving connection with the first sun gear 410. A second planetary gear 440 is coaxially connected to the azimuth shaft 450 and is in driving connection with the second sun gear 420. The pitch axis system 5 includes a pitch shaft 510, which is rotatably mounted on the suspension 2. A first pitch frame 6 is fixed to one end of the pitch shaft 510. A second pitch frame 7 is fixed to the other end of the pitch shaft 510. For illustration, the base 1 can be fixed to the ground.

[0060] Specifically, refer to Figure 1-3 In some embodiments, the photoelectric turntable further includes a first rotating shaft 14 and a second rotating shaft 15. The base 1 is rotatably connected to the suspension 2 via the first rotating shaft 14; the top seat 3 is rotatably connected to the suspension 2 via the second rotating shaft 15, thereby achieving rotatable assembly between the base 1 and the suspension 2, and between the base 1 and the top seat 3.

[0061] Compared with the existing photoelectric turntable, the extension direction of the azimuth rotation axis 450 provided in the embodiment of the present application is parallel to the first axis, and does not block the first pitch frame 6 and the second pitch frame 7 at all, and thus does not block the pitch field of view, and has better efficiency; moreover, the first planetary gear 430 is coaxially connected to the azimuth rotation axis 450 and is connected to the first sun gear 410 in transmission, and the second planetary gear 440 is coaxially connected to the azimuth rotation axis 450 and is connected to the second sun gear 420 in transmission, the transmission of the first planetary gear 430 and the first sun gear 410 has a first transmission ratio, and the transmission of the second planetary gear 440 and the second sun gear 420 has a second transmission ratio. By matching different transmission ratios or indirect gear transmission, the top seat 3 and the suspension 2 can be designed to rotate forward, reverse or remain stationary relative to the base 1 and have different speeds, which has richer and more powerful functions; moreover, the first pitch frame 6 is fixed to one end of the pitch rotation axis 510, and the second pitch frame 7 is fixed to the other end of the pitch rotation axis 510, making full use of the space at both ends of the pitch rotation axis 510 for layout The first pitch frame 6 and the second pitch frame 7 are arranged with a compact structure, which is conducive to reducing the size in this direction; moreover, the extension direction of the azimuth rotation shaft 450 of the azimuth transmission mechanism 4 is parallel to the first axis and is rotatably arranged on the suspension 2. The crankshaft design structure is no longer adopted, and the structural reliability of the azimuth rotation shaft 450 is higher; moreover, the optoelectronic turntable of this structure only needs to design a set of pitch axis pitch drives and a set of suspension 2 and top seat 3 azimuth drives. The rotation or constraint of the top seat 3 can be achieved through the transmission mechanism purely by mechanical drive, without power and feedback, which is equivalent to removing the control system of the top seat 3, avoiding the difficulty of dual azimuth control and reducing unreliable factors; moreover, compared with the traditional two-axis optoelectronic turntable combined with a single-axis azimuth turntable solution, the transmission mechanism of the present application adopts a purely mechanical driven linkage method, which can greatly reduce the manufacturing cost; on the one hand, it reduces expensive equipment such as controllers and reduces hardware costs, and on the other hand, the mechanical structure is safe and reliable, reducing the trial and error costs in use and debugging.

[0062] In addition, reference Figure 1-4 In some embodiments, the pitch axis system 5 further includes at least one pitch drive source 520, which is fixed to the suspension 2 and is drivably connected to the pitch rotation axis 510 to achieve pitch drive, thereby adjusting the pitch angles of the first pitch frame 6 and the second pitch frame 7. The pitch drive source 520 can be an existing rotary motor, and is not specifically limited thereto.

[0063] In some embodiments, reference Figure 1-3The first planetary gear 430 is coaxially connected to the azimuth rotating shaft 450 and directly meshes with the first sun gear 410, and the second planetary gear 440 is coaxially connected to the azimuth rotating shaft 450 and directly meshes with the second sun gear 420. The direct meshing structure is simple and low in cost. The transmission structure at this time can make the suspension 2 and the top seat 3 have the same azimuth steering. Of course, by adjusting the first transmission ratio of the first planetary gear 430 and the first sun gear 410, and the second transmission ratio of the second planetary gear 440 and the second sun gear 420, by matching different transmission ratios or indirect gear transmission, the top seat 3 or the suspension 2 can be adjusted to be stationary or at different speeds relative to the base 1.

[0064] Of course, in other embodiments, the optoelectronic turntable further includes a transfer planetary gear rotatably mounted on the suspension 2, with the second planetary gear 440 directly meshing with the transfer planetary gear, and the second sun gear 420 directly meshing with the transfer planetary gear. In this case, the transmission structure can cause the suspension 2 and the top base 3 to have opposite directional rotations.

[0065] In addition, in some embodiments, reference Figure 1-3 and Figure 5 The first sun gear 410 is detachably connected to the base 1, and the first planetary gear 430 is detachably connected to the azimuth shaft 450, so that the first sun gear 410 and the first planetary gear 430 can be replaced, assembled, unassembled, maintained or adjusted separately. The first sun gear 410 and the first planetary gear 430 of different sizes can be flexibly adjusted to adjust the transmission ratio, and the maintenance and adjustment cost is low.

[0066] Similarly, reference Figure 1-3 and Figure 5 In some embodiments, the second sun gear 420 is detachably connected to the top seat 3, and the second planetary gear 440 is detachably connected to the azimuth shaft 450, so that the second sun gear 420 and the second planetary gear 440 can be replaced, loaded, unloaded, maintained or adjusted separately. The second sun gear 420 and the second planetary gear 440 of different sizes can be flexibly adjusted to adjust the transmission ratio, and the maintenance and adjustment cost is low.

[0067] In order to achieve automatic driving azimuth steering. In some embodiments, reference Figure 1-3 The photoelectric turntable further includes an azimuth drive motor 460 ; the azimuth drive motor 460 is fixed to the base 1 , and the output end of the azimuth drive motor 460 is connected to the first rotating shaft 14 , which is fixedly connected to the suspension 2 . The azimuth drive motor 460 rotates to drive the suspension 2 to adjust its azimuth. The azimuth drive motor 460 may be a servo motor, a reduction motor, or other device.

[0068] In some embodiments, the optoelectronic turntable further includes an azimuth brake 8. The azimuth brake 8 is fixed to the suspension 2, and the azimuth brake 8 is in braking connection with the azimuth rotation shaft 450.

[0069] Further, refer to Figure 3 The photoelectric turntable also includes a driving gear 9 and a driven gear 10. The driving gear 9 is fixedly connected to the output shaft of the azimuth brake 8; the driven gear 10 is coaxially fixed to the azimuth shaft 450. Directly meshing with the driving gear 9, the azimuth brake 8 can brake the azimuth shaft 450 from rotating about its own axis. This results in a simple structure and low cost. The azimuth brake 8 acts as a shaft-locking brake when power is off.

[0070] In some embodiments, reference Figure 1-2 The photoelectric turntable also includes a first photoelectric load 11, a second photoelectric load 12, and a third photoelectric load 13. The first photoelectric load 11 is mounted on the top seat 3; the second photoelectric load 12 is mounted on the first pitch frame 6; and the third photoelectric load 13 is mounted on the second pitch frame 7. The top seat 3 drives the first photoelectric load 11 to rotate by azimuth rotation, and the suspension 2 drives the second photoelectric load 12 on the first pitch frame 6 and the third photoelectric load 13 on the second pitch frame 7 to adjust their azimuth by azimuth rotation relative to the base 1. The first photoelectric load 11, the second photoelectric load 12, and the third photoelectric load 13 can be configured with corresponding photoelectric devices according to specific needs, such as infrared, laser, visible light, and other photoelectric measurement equipment.

[0071] In some embodiments, reference Figure 3 and Figure 7 The optoelectronic turntable also includes a sleeve 16 and at least one pair of bearings 17. The suspension 2 defines a sleeve receptacle 210, into which the sleeve 16 is inserted and fixed. The azimuth shaft 450 passes through the sleeve 16 and rotatably engages with the sleeve 16 via at least one pair of bearings 17. This design allows the azimuth shaft 450, sleeve 16, and bearings 17 to be assembled and quickly removed from the suspension 2 as a whole, allowing the sleeve 16 to be quickly installed and removed from the sleeve receptacle 210, making installation and adjustment convenient.

[0072] Finally, it should be noted that the various technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-described embodiment merely represents one embodiment of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A photoelectric turntable, characterized in that: include: Base (1); A suspension (2) is rotatably arranged on the top of the base (1) around a first axis; A top seat (3) is rotatably arranged on the bottom of the suspension (2) around the first axis; An azimuth transmission mechanism (4) comprises a first sun gear (410), a second sun gear (420), a first planetary gear (430), a second planetary gear (440), and an azimuth rotating shaft (450), wherein the extension direction of the azimuth rotating shaft (450) is parallel to the first axis and is rotatably arranged on the suspension (2), the first sun gear (410) is fixed to the base (1) and is coaxial with the first axis, the second sun gear (420) is fixed to the top seat (3) and is coaxial with the first axis, the first planetary gear (430) is coaxially connected to the azimuth rotating shaft (450) and is in transmission connection with the first sun gear (410), and the second planetary gear (440) is coaxially connected to the azimuth rotating shaft (450) and is in transmission connection with the second sun gear (420); A pitch axis system (5) includes a pitch rotation axis (510), wherein the pitch rotation axis (510) is rotatably arranged on the suspension (2); A first pitch frame (6) is fixed to one end of the pitch rotation axis (510); The second pitch frame (7) is fixed to the other end of the pitch rotation axis (510).

2. The photoelectric turntable according to claim 1, characterized in that: The first planetary gear (430) is coaxially connected to the azimuth rotating shaft (450) and directly meshes with the first sun gear (410), and the second planetary gear (440) is coaxially connected to the azimuth rotating shaft (450) and directly meshes with the second sun gear (420).

3. The photoelectric turntable according to claim 1, characterized in that: Also includes: The transfer planetary gear is rotatably arranged on the suspension (2), the second planetary gear (440) is directly meshed with the transfer planetary gear, and the second sun gear (420) is directly meshed with the transfer planetary gear.

4. The photoelectric turntable according to claim 1, characterized in that: Also includes: An azimuth brake (8) is fixed to the suspension (2), and the azimuth brake (8) is used for braking connection with the azimuth rotating shaft (450).

5. The photoelectric turntable according to claim 4, characterized in that: The photoelectric turntable further comprises: A driving gear (9) is fixedly connected to the output shaft of the azimuth brake (8); The driven gear (10) is coaxially fixed to the azimuth rotating shaft (450), and the driven gear (10) is directly meshed with the driving gear (9).

6. The photoelectric turntable according to claim 1, characterized in that: Also includes: A first photoelectric load (11) is arranged on the top seat (3); A second photoelectric load (12) is arranged on the first pitch frame (6); The third photoelectric load (13) is arranged on the second pitch frame (7).

7. The photoelectric turntable according to claim 1, characterized in that: Also includes: a first rotating shaft (14), wherein the base (1) is rotatably connected to the suspension (2) via the first rotating shaft (14); A second rotating shaft (15), the top seat (3) is rotatably connected to the suspension (2) via the second rotating shaft (15).

8. The photoelectric turntable according to claim 1, characterized in that: Also includes: A shaft sleeve (16), the suspension (2) is provided with a sleeve body insertion hole (210), and the shaft sleeve (16) is inserted and fixed in the sleeve body insertion hole (210); At least one pair of bearings (17), the azimuth rotating shaft (450) passes through the shaft sleeve (16) and is rotatably engaged with the shaft sleeve (16) through at least one pair of bearings (17).

9. The photoelectric turntable according to claim 1, characterized in that: The pitch axis system (5) further comprises: At least one pitch driving source (520) is fixed to the suspension (2), and at least one pitch driving source (520) is drivingly connected to the pitch rotating shaft (510).

10. The photoelectric turntable according to claim 1, characterized in that: The first sun gear (410) is detachably connected to the base (1), and the first planetary gear (430) is detachably connected to the azimuth rotating shaft (450); and / or the second sun gear (420) is detachably connected to the top seat (3), and the second planetary gear (440) is detachably connected to the azimuth rotating shaft (450).

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