Two-shaft stable platform

Abstract

The utility model discloses a two-axis stabilized platform, which belongs to the technical field of balancing equipment and comprises a base, a swing box, a first holder motor, a second holder motor and a stabilizing frame, two ends of the base are respectively provided with a support arm, the support arms face upwards, the swing box is rotatably supported between the two support arms, the first holder motor is arranged in the swing box, and the second holder motor is arranged in the stabilizing frame. The first holder motor is used for driving the swing box to rotate relative to the supporting arm, the second holder motor is arranged in the swing box, the stabilizing frame is rotationally supported on the outer side of the swing box, and the second holder motor is used for driving the stabilizing frame to rotate relative to the swing box. The stable frame is compact in structure, small in occupied space, small in size, high in transmission precision, small in power loss, good in swing box sealing performance and capable of working normally under severe environmental conditions due to the adoption of the integrated cradle head motors, and equipment installed on the stable frame can be always kept in a horizontal state under adjustment of the first cradle head motor and the second cradle head motor. And the stable working performance is ensured.

Description

Technical Field

[0001] This utility model relates to the field of balancing equipment technology, specifically to a two-axis stabilization platform. Background Technology

[0002] Mobile carriers, affected by their own motion or external disturbances, experience changes in attitude and angle. Precision loads mounted on these carriers, especially those with specific spatial orientation requirements, struggle to function properly in such environments. For example, when the mobile carrier is a ship, the significant swaying caused by waves during navigation can prevent precision loads such as satellite communication antennas from operating correctly. Therefore, a stabilizing platform is needed to secure these precision loads and ensure their stability. However, existing stabilizing platforms suffer from the following problems: the use of gear transmission leads to poor transmission accuracy; the height difference between the rotating shaft and the motor shaft results in low space utilization; and the exposed design of the motor and gears provides poor protection, making them unsuitable for prolonged use in harsh environments. Utility Model Content

[0003] The purpose of this invention is to provide a two-axis stabilization platform that has a simple structure, is easy to use, and can effectively improve the above-mentioned problems.

[0004] The embodiments of this utility model are implemented as follows:

[0005] This utility model provides a two-axis stabilization platform, including a base, a swing box, a first gimbal motor, a second gimbal motor, and a stabilizer frame. The base has a support arm at each end, with the support arms facing upwards. The swing box is rotatably supported between the two support arms. The first gimbal motor is located inside the swing box, and its body and output end are fixedly connected to one component of the swing box and one of the support arms, respectively. The first gimbal motor drives the swing box to rotate relative to the support arms. The second gimbal motor is located inside the swing box, and the output axis of the second gimbal motor is perpendicular to the output axis of the first gimbal motor. The stabilizer frame is rotatably supported outside the swing box, and the body and output end of the second gimbal motor are fixedly connected to one component of the swing box and one of the stabilizer frame, respectively. The second gimbal motor drives the stabilizer frame to rotate relative to the swing box.

[0006] Furthermore, the swing box includes a box body, a first bearing sleeve, and a second bearing sleeve. There are two first bearing sleeves symmetrically arranged at both ends of the longitudinal direction of the box body, and there are two second bearing sleeves symmetrically arranged at both ends of the transverse direction of the box body. The box body, the first bearing sleeve, and the second bearing sleeve form a cross-shaped structure with a cross-shaped cavity inside. The first bearing sleeve is rotatably connected to the support arm, and the second bearing sleeve is rotatably connected to the stabilizer frame.

[0007] Furthermore, the first gimbal motor is disposed in a first bearing sleeve, and a first support shaft is disposed in another first bearing sleeve. The first support shaft is fixedly connected to the support arm, and a first bearing is disposed between the first support shaft and the first bearing sleeve.

[0008] Furthermore, the second gimbal motor is housed in one second bearing sleeve, and a second support shaft is provided in another second bearing sleeve. The second support shaft is fixedly connected to the stabilizer frame, and a second bearing is provided between the second support shaft and the second bearing sleeve.

[0009] Furthermore, both the connection point between the support arm and the first bearing sleeve and the connection point between the stabilizer and the second bearing sleeve are provided with skeleton oil seal rings.

[0010] Furthermore, the stabilizer has a U-shaped structure, which is inverted, and the free ends of its two vertical sides are rotatably connected to the two second bearing sleeves respectively.

[0011] Furthermore, the support arm is provided with a first sealing plate on the outer side of the part corresponding to the first bearing sleeve, and the stabilizer is provided with a second sealing plate on the outer side of the part corresponding to the second bearing sleeve.

[0012] Furthermore, a first limiting block is provided at the top of the base between the two support arms.

[0013] Furthermore, a second limiting block is provided on the inner top surface of the stabilizer.

[0014] The beneficial effects of this utility model are as follows:

[0015] The two-axis stabilization platform provided by this utility model has a compact structure and small space occupation. It adopts an integrated gimbal motor, which is small in size, has high transmission accuracy, low power loss, and good sealing of the swing box. It can work normally under harsh environmental conditions. Under the adjustment of the first gimbal motor and the second gimbal motor, the equipment installed on the stabilization frame can always maintain a horizontal state, ensuring its stable working performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the two-axis stabilization platform of this utility model;

[0018] Figure 2 for Figure 1 Sectional view at point AA.

[0019] In the diagram: 1-Base; 11-Support arm; 12-First sealing plate; 13-Second sealing plate; 14-First limiting block; 2-Swing box; 21-Box body; 22-First bearing sleeve; 23-Second bearing sleeve; 24-First support shaft; 25-First bearing; 26-Second support shaft; 27-Second bearing; 28-Skeleton oil seal ring; 3-First gimbal motor; 4-Second gimbal motor; 5-Stabilizer; 51-Second limiting block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0024] refer to Figure 1 and 2 As shown, this utility model embodiment provides a two-axis stabilization platform, including a base 1, a swing box 2, a first gimbal motor 3, a second gimbal motor 4, and a stabilizing frame 5.

[0025] The base 1 is used to fix it on a mobile carrier, such as a ship, vehicle, or aircraft. The interior of the base 1 is hollow, and an tilt sensor and a controller can be installed inside it. The tilt sensor is used to monitor the offset angle of the mobile carrier, and the controller is used to send and receive information and process information.

[0026] A support arm 11 is provided at each of the two ends of the base 1, and the support arm 11 faces upward. In this embodiment, the support arm 11 is located at the top two ends of the base 1.

[0027] The swing box 2 includes a box body 21, a first bearing sleeve 22, and a second bearing sleeve 23. There are two first bearing sleeves 22, which are symmetrically arranged at both ends of the longitudinal direction of the box body 21. There are two second bearing sleeves 23, which are symmetrically arranged at both ends of the transverse direction of the box body 21. The box body 21, the first bearing sleeve 22, and the second bearing sleeve 23 form a cross-shaped structure with a cross-shaped cavity inside. The first bearing sleeve 22 and the second bearing sleeve 23 are detachably connected to the box body 21, which facilitates processing, disassembly, and maintenance. Of course, the first bearing sleeve 22 and the second bearing sleeve 23 can also be integrally cast with the box body 21.

[0028] The swing box 2 is rotatably supported between two support arms 11, and two first bearing sleeves 22 are rotatably connected to the two support arms 11 respectively. In this embodiment, a first support shaft 24 is provided on the inner side of the upper end of one support arm 11, and the first support shaft 24 is fixedly connected to the support arm 11. A first gimbal motor 3 is provided on the inner side of the upper end of the other support arm 11. The first bearing sleeve 22 is supported on the first support shaft 24 and the first gimbal motor 3, and the axis of the first bearing sleeve 22 coincides with the axis of the first support shaft 24 and the axis of the output end of the first gimbal motor 3. The first bearing sleeve 22 is rotatably engaged with the first support shaft 24, and a first bearing 25 is provided between them. The first bearing 25 reduces the friction between them during relative rotation. The body and output end of the first gimbal motor 3 are fixedly connected to one of the components of the first bearing sleeve 22 and the support arm 11, respectively. For example, if the body of the first gimbal motor 3 is fixedly connected to the support arm 11, then its output end is fixedly connected to the first bearing sleeve 22. Or, if the body of the first gimbal motor 3 is fixedly connected to the first bearing sleeve 22, then its output end is fixedly connected to the support arm 11. In this way, the first gimbal motor 3 can drive the swing box 2 to rotate relative to the support arm 11.

[0029] The second gimbal motor 4 is housed within a second bearing sleeve 23, and a second support shaft 26 is housed within another second bearing sleeve 23. A second bearing 27 is provided between the second support shaft 26 and the second bearing sleeve 23. The axis of the second bearing sleeve 23 coincides with the axis of the second support shaft 26 and the axis of the output end of the second gimbal motor 4.

[0030] The stabilizer 5 has a U-shaped structure and is inverted. Its two vertical free ends are rotatably connected to two second bearing sleeves 23. One vertical side is fixedly connected to the second support shaft 26, and the other vertical side is connected to the second gimbal motor 4. The body and output end of the second gimbal motor 4 are fixedly connected to one component of the second bearing sleeve 23 and the stabilizer 5, respectively. For example, if the body of the second gimbal motor 4 is fixedly connected to the stabilizer 5, then its output end is fixedly connected to the second bearing sleeve 23; or vice versa. This allows the second gimbal motor 4 to drive the stabilizer 5 to rotate relative to the swing box 2. The stabilizer 5 is used to fix precision instruments, such as satellite communication antennas.

[0031] Both the support arm 11 and the first bearing sleeve 22, and the stabilizer 5 and the second bearing sleeve 23, are equipped with skeleton oil seal rings 28. The support arm 11 has a first sealing plate 12 on its outer side corresponding to the first bearing sleeve 22, and the stabilizer 5 has a second sealing plate 13 on its outer side corresponding to the second bearing sleeve 23. The skeleton oil seal rings 28, the first sealing plate 12, and the second sealing plate 13 effectively ensure the sealing performance of the first bearing sleeve 22 and the second bearing sleeve 23, preventing dust, moisture, and other impurities from entering the swing box 2.

[0032] The top of the base 1 is provided with a first limiting block 14 between the two support arms 11. The setting of the first limiting block 14 limits the swing box 2 to rotate only within a certain angle range, ensuring the safety of adjustment.

[0033] A second limiting block 51 is provided on the inner top surface of the stabilizer 5. The setting of the second limiting block 51 limits the stabilizer 5 to rotate only within a certain angle range, ensuring the safety of adjustment.

[0034] The working principle of the two-axis stabilization platform provided in this embodiment of the invention is as follows:

[0035] When the tilt sensor inside the base 1 detects that the carrier is tilted, it sends the tilt angle information to the controller. The controller processes the information and sends commands to the first gimbal motor 3 and the second gimbal motor 4. The first gimbal motor 3 can control the swing box 2 to rotate a certain angle in the opposite direction of the tilt direction of the base 1. The swing box 2 can drive the stabilizer 5 and the equipment installed on the stabilizer 5 to rotate synchronously. The second gimbal motor 4 can control the stabilizer 5 to rotate a certain angle in the opposite direction of the tilt direction of the base 1. The stabilizer 5 can drive the precision instruments installed on it to rotate synchronously. In this way, under the adjustment of the first gimbal motor 3 and the second gimbal motor 4, the equipment installed on the stabilizer 5 can always maintain a horizontal state, ensuring its stable working performance.

[0036] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.

Claims

1. A two-axis stabilized platform characterized by: The application relates to a camera stabilizing device, which comprises a base, a swing box, a first gimbal motor, a second gimbal motor and a stabilizing frame, the base is provided with a support arm at each end, the support arms are upward, the swing box is rotatably supported between the two support arms, the first gimbal motor is arranged in the swing box, the body and the output end of the first gimbal motor are fixedly connected with one part of the swing box and the support arm respectively, the first gimbal motor is used for driving the swing box to rotate relative to the support arm, the second gimbal motor is arranged in the swing box, the output end axis of the second gimbal motor is perpendicular to the output end axis of the first gimbal motor, the stabilizing frame is rotatably supported outside the swing box, the body and the output end of the second gimbal motor are fixedly connected with one part of the swing box and the stabilizing frame respectively, and the second gimbal motor is used for driving the stabilizing frame to rotate relative to the swing box.

2. The two-axis stabilized platform of claim 1, wherein: The swing box comprises a box body, a first bearing sleeve and a second bearing sleeve, the number of the first bearing sleeves is two, and the two first bearing sleeves are symmetrically arranged at the two ends in the longitudinal direction of the box body, the number of the second bearing sleeves is two, and the two second bearing sleeves are symmetrically arranged at the two ends in the transverse direction of the box body, the box body, the first bearing sleeves and the second bearing sleeves form a cross-shaped structure, and the inside of the cross-shaped structure is a cross-shaped cavity, the first bearing sleeves are rotatably connected with the support arms, and the second bearing sleeves are rotatably connected with the stabilizing frame.

3. The two-axis stabilized platform of claim 2, wherein: The first gimbal motor is arranged in one first bearing sleeve, a first support shaft is arranged in the other first bearing sleeve, the first support shaft is fixedly connected with the support arm, and a first bearing is arranged between the first support shaft and the first bearing sleeve.

4. The two-axis stabilized platform of claim 2, wherein: The second gimbal motor is arranged in one second bearing sleeve, a second support shaft is arranged in the other second bearing sleeve, the second support shaft is fixedly connected with the stabilizing frame, and a second bearing is arranged between the second support shaft and the second bearing sleeve.

5. The two-axis stabilized platform of claim 4, wherein: The support arm and the first bearing sleeve are connected, and the stabilizing frame and the second bearing sleeve are connected.

6. The two-axis stabilized platform of claim 2, wherein: The stabilizing frame is in a U-shaped structure, and the free ends of the two vertical edges of the stabilizing frame are rotatably connected with the two second bearing sleeves respectively.

7. The two-axis stabilized platform of claim 2, wherein: The support arm is provided with a first sealing plate outside the corresponding part of the first bearing sleeve, and the stabilizing frame is provided with a second sealing plate outside the corresponding part of the second bearing sleeve.

8. The two-axis stabilized platform of claim 1, wherein: The top of the base is provided with a first limiting block between the two support arms.

9. The two-axis stabilized platform of claim 1, wherein: The inner top surface of the stabilizing frame is provided with a second limiting block.

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