Servo turntable locking mechanism

Abstract

The utility model provides a servo turntable locking mechanism, which solves the technical problems that the existing meteorological radar cannot be effectively fixed after rotating and stopping, and stability detection in a single direction cannot be realized. The servo rotary table locking mechanism is provided with a base and a rotary table, the rotary table is rotationally installed on the base, a transmission mechanism is installed in the base and provided with a driving motor, a power output shaft of the driving motor is connected with the bottom of the rotary table through a transmission rod, and a locking mechanism is further installed in the base and provided with a servo motor. A power output shaft of the servo motor is coaxially connected with the first gear, the transmission rod is coaxially connected with the second gear, and the first gear is in meshed connection with the second gear; the system can be widely applied to the radar equipment technology field.

Description

Technical Field

[0001] This application relates to the field of radar equipment technology, and in particular to a servo turntable locking mechanism. Background Technology

[0002] Weather radar is a type of radar specifically designed for atmospheric detection. It is an active microwave atmospheric remote sensing device and an important means of meteorological monitoring. It plays a crucial role in the monitoring, forecasting, and warning of sudden and disastrous events. Weather radar is usually installed on the top of a dual-axis azimuth turntable. By adjusting the horizontal rotation and elevation angle of the azimuth turntable, it can monitor and forecast the weather in real time.

[0003] In existing technologies, after the weather radar is rotated and stopped, it cannot be effectively fixed, and stability detection in a single direction cannot be achieved. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the aforementioned technologies by providing a servo turntable locking mechanism that ensures the weather radar turntable is in a locked state, enabling the weather radar to perform stability detection in a single direction.

[0005] Therefore, this utility model provides a servo turntable locking mechanism, which includes a base and a turntable. The turntable is rotatably mounted on the base, and a transmission mechanism is installed inside the base. The transmission mechanism includes a drive motor, and the power output shaft of the drive motor is connected to the bottom of the turntable through a transmission rod. A locking mechanism is also installed inside the base, and the locking mechanism includes a servo motor. The power output shaft of the servo motor is coaxially connected to a first gear, and the transmission rod is coaxially connected to a second gear. The first gear and the second gear are meshed together.

[0006] Preferably, the locking mechanism is configured as multiple sets, which are arranged around the transmission mechanism.

[0007] Preferably, the number of teeth of the first gear is greater than the number of teeth of the second gear.

[0008] Preferably, the first gear and the second gear mesh as a pair of meshing helical gears, and their rotation directions are opposite.

[0009] Preferably, the power output shaft of the servo motor is parallel to the transmission rod.

[0010] Preferably, the top of the base is provided with a mounting through hole, a bearing is installed in the mounting through hole, the outer ring of the bearing is fixedly connected to the inner wall of the mounting through hole, and the inner ring of the bearing is fixedly connected to the bottom of the turntable.

[0011] Preferably, the bearing is a rolling bearing.

[0012] Preferably, the turntable is made of steel and is cylindrical in shape.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a servo turntable locking mechanism, which includes a locking mechanism and a servo motor. The power output shaft of the servo motor is coaxially connected to a first gear, and the transmission rod is coaxially connected to a second gear. The first gear and the second gear are meshed together. When the weather radar rotates to a preset angle, both the drive motor and the servo motor are simultaneously turned off. The unpowered servo motor passively prevents the transmission rod from rotating through the meshing second gear and the first gear, thus locking the turntable. This avoids the turntable from rotating unexpectedly due to external forces after the drive motor is turned off, enabling the weather radar to perform stability detection in a single direction. Furthermore, the rotation angle value of the weather radar can be obtained through the servo motor. Attached Figure Description

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model (a weather radar is also installed);

[0016] Figure 2 for Figure 1 The diagram shows a partial sectional view of the base and turntable structure.

[0017] The markings in the diagram are: 1. Base, 2. Turntable, 3. Drive motor, 4. Transmission rod, 5. Servo motor, 6. First gear, 7. Second gear, 8. Bearing. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit the scope of this application. Unless otherwise specified, the methods used in this utility model are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0019] Depend on Figure 1 , Figure 2As shown, this utility model provides a servo turntable locking mechanism for a weather radar azimuth turntable 2. The servo turntable 2 locking mechanism includes a base 1 and a turntable 2. The turntable 2 is rotatably mounted on the base 1, and the weather radar is mounted on the turntable 2. A transmission mechanism is installed inside the base 1, and the transmission mechanism includes a drive motor 3. The power output shaft of the drive motor 3 is connected to the bottom of the turntable 2 via a transmission rod 4. A locking mechanism is also installed inside the base 1, and the locking mechanism includes a servo motor 5. The power output shaft of the servo motor 5 is coaxially connected to a first gear 6, and the transmission rod 4 is coaxially connected to a second gear 7. The first gear 6 and the second gear 7 are meshed together.

[0020] The working principle of this utility model is as follows: When the operator needs to adjust the facing direction of the weather radar, firstly, the drive motor 3 and the servo motor 5 are started simultaneously. The drive motor 3 drives the turntable 2 to rotate through the transmission rod 4, thereby causing the weather radar on the turntable 2 to rotate. When the weather radar rotates to the preset angle, the drive motor 3 and the servo motor 5 are turned off at the same time, so as to achieve the purpose of rotating the weather radar to a certain angle according to actual needs.

[0021] It should be noted that if the present invention does not include the servo motor 5, when the weather radar rotates to the preset angle and the drive motor 3 is turned off, since the rotor of the drive motor 3 is not powered, there is no electromagnetic force, and the rotation of the rotor will not be restricted by the electromagnetic field. Therefore, when the drive motor is not started, if the turntable 2 is subjected to an external force on the transmission rod 4, it can rotate on its own, and the weather radar cannot be effectively fixed.

[0022] This invention adds a servo motor 5. When the weather radar is rotated, the purpose of starting the servo motor 5 is to drive the first gear 6 to rotate at a certain speed. At the same time, the drive motor 3 drives the turntable 2 to rotate through the transmission rod 4. The second gear 7 rotates under the transmission action of the transmission rod 4, and the servo motor 5 drives the first gear 6 to rotate, realizing the meshing and rotation of the first gear 6 and the second gear 7. At this time, the most ideal state is that when the first gear 6 and the second gear 7 rotate relative to each other, they are only in physical contact but have no force between them.

[0023] The servo motor 5 itself has the characteristic of not rotating on its own; it cannot rotate without power. That is, for the servo motor 5 to rotate, a pulse signal is required; without pulses, it will not rotate. Therefore, when the weather radar rotates to the preset angle, the drive motor 3 and the servo motor 5 are simultaneously turned off. The unpowered servo motor 5 passively prevents the transmission rod 4 from rotating through the meshing first gear 6 and second gear 7, thus locking the turntable 2. This prevents the turntable 2 from rotating unexpectedly due to external forces after the drive motor is turned off, enabling the weather radar to perform stability detection in a single direction.

[0024] In some embodiments, preferably, the locking mechanism is configured as multiple sets, which are arranged around the transmission mechanism to make the locking function of the locking mechanism more stable and reliable.

[0025] In some embodiments, preferably, the first gear 6 has more teeth than the second gear 7, so that the locking mechanism passively applies a smaller force to achieve a stable and reliable locking function.

[0026] In some embodiments, preferably, the first gear 6 and the second gear 7 mesh as a pair of meshing helical gears, and their rotation directions are opposite, which is simple in structure and easy to install.

[0027] In some embodiments, preferably, the power output shaft of the servo motor 5 is parallel to the transmission rod 4, which is beneficial for the transmission of locking force.

[0028] In some embodiments, preferably, the top of the base 1 is provided with a mounting through hole, and a bearing 8 is installed in the mounting through hole. The outer ring of the bearing 8 is fixedly connected to the inner wall of the mounting through hole, and the inner ring of the bearing 8 is fixedly connected to the bottom of the turntable 2, which is conducive to the drive motor 3 driving the turntable 2 to rotate more smoothly.

[0029] In some embodiments, preferably, the bearing 8 is a rolling bearing 8, which improves the sensitivity of the turntable 2 rotation.

[0030] In some embodiments, preferably, the turntable 2 is made of steel and is cylindrical in shape, which is not easy to rust and is easy to manufacture.

[0031] Furthermore, the rotation angle of the servo motor 5 in this invention can be precisely controlled by the number of encoder pulses and the resolution set by the driver. Therefore, during the rotation of the weather radar, the operator can calculate the rotation angle value of the weather radar using the rotation angle of the servo motor 5. The calculation process for this angle is existing technology and will not be elaborated here. For example, when the first gear 6 and the second gear 7 are identical, the rotation angle value of the weather radar when it changes from a stationary state to a rotating state is equal to the rotation angle value of the servo motor 5.

[0032] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0033] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A servo turntable locking mechanism, comprising a base (1) and a turntable (2), wherein the turntable (2) is rotatably mounted on the base (1), a transmission mechanism is installed inside the base (1), the transmission mechanism is provided with a drive motor (3), and the power output shaft of the drive motor (3) is connected to the bottom of the turntable (2) via a transmission rod (4), characterized in that, The base (1) is also equipped with a locking mechanism, which is equipped with a servo motor (5). The power output shaft of the servo motor (5) is coaxially connected to the first gear (6), and the transmission rod (4) is coaxially connected to the second gear (7). The first gear (6) and the second gear (7) are meshed together.

2. The servo turntable locking mechanism according to claim 1, characterized in that, The locking mechanism is configured in multiple sets, and the multiple sets of locking mechanisms are arranged around the transmission mechanism.

3. The servo turntable locking mechanism according to claim 1, characterized in that, The first gear (6) has more teeth than the second gear (7).

4. A servo turntable locking mechanism according to claim 3, characterized in that, The first gear (6) and the second gear (7) mesh as a pair of meshing helical gears, and their rotation directions are opposite.

5. A servo turntable locking mechanism according to claim 1, characterized in that, The power output shaft of the servo motor (5) is parallel to the transmission rod (4).

6. A servo turntable locking mechanism according to claim 1, characterized in that, The base (1) has a mounting through hole at the top, and a bearing (8) is installed in the mounting through hole. The outer ring of the bearing (8) is fixedly connected to the inner wall of the mounting through hole, and the inner ring of the bearing (8) is fixedly connected to the bottom of the turntable (2).

7. A servo turntable locking mechanism according to claim 6, characterized in that, The bearing (8) is a rolling bearing.

8. A servo turntable locking mechanism according to claim 1, characterized in that, The turntable (2) is made of steel and is cylindrical in shape.

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