Short-wave broadcast deflection switch with self-damping function

Abstract

The utility model provides a short-wave broadcast deviation switch with self-damping, and the switch comprises a reduction gearbox which is internally provided with a gear transmission mechanism, and the gear transmission mechanism is used for reducing the speed of inputted rotation power and transmitting the rotation power to an output end; and the self-damping device is arranged in the reduction gearbox and connected with the gear transmission mechanism of the reduction gearbox, and when the gear transmission mechanism of the reduction gearbox rotates, the self-damping device can generate a damping effect so as to slow down the rotating speed of the reduction gearbox. By additionally arranging the self-damping device, the problem that the high-power short-wave broadcast deflection switch is unreliable in the deceleration positioning process is effectively solved. The generator in the self-damping device is matched with the power resistor to work, so that a damping effect can be generated when the reduction gearbox rotates, the rotating speed is reduced, mechanical energy can be converted into electric energy, the electric energy is consumed through the power resistor, and effective utilization of the energy is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of shortwave communication equipment, specifically relating to a shortwave broadcast bias switch with self-damping. Background Technology

[0002] High-power shortwave broadcast deflection switches are typically used in outdoor high-frequency, high-voltage environments to switch shortwave broadcast signals, ensuring the stability and accuracy of signal transmission. When using a deflection switch to switch broadcast signals, it is necessary to ensure that the deflection switch stops within a very small rotation angle to guarantee the accuracy of the switched signal.

[0003] The high-power shortwave broadcast deflection switch operates in an environment with large temperature and humidity variations. In such an environment, due to temperature and humidity changes, interference, and other factors, the high-power shortwave broadcast deflection switch is prone to malfunctions that prevent it from accurately positioning.

[0004] Existing methods for deceleration and positioning of high-power shortwave broadcast deflection switches, both domestically and internationally, involve either using an electromagnetic brake to lock the main shaft or using brake pads to apply frictional deceleration to the gearbox's dial. The former has the drawback that when the system is interfered with or the control signal experiences a certain delay, the electromagnetic brake may not lock the switch's main shaft in time, allowing it to continue rotating due to inertia, resulting in unreliable switch positioning. The latter has the drawback that temperature changes, long-term wear, or control signal delays can easily reduce the friction of the braking system or cause insufficient braking, failing to stop the gearbox in time. The gearbox then continues rotating due to inertia, again leading to unreliable switch positioning. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a shortwave broadcast deflection switch with self-damping. By adding a self-damping device, the switch effectively slows down the rotation speed of the gearbox and ultimately ensures reliable positioning of the switch.

[0006] The specific technical solution of this application is: a shortwave broadcast deflection switch with self-damping, the shortwave broadcast deflection switch with self-damping comprising:

[0007] The gearbox includes a drive shaft, which is connected to a self-damping device;

[0008] The self-damping device is installed inside the gearbox. The self-damping device includes a generator and a power resistor. The output shaft of the generator is connected to one end of the transmission shaft via a gear. The generator is electrically connected to the power resistor.

[0009] Furthermore, the self-damped shortwave broadcast deflection switch also includes a deflection device and a transmission device. The transmission device includes the gearbox and a drive motor connected to the input end of the gearbox. The deflection device is used to adjust the transmission direction of the broadcast signal. The output shaft of the drive motor is connected to the transmission shaft of the gearbox through a reversing transmission gear. The input shaft of the generator is meshed with the lower end of the transmission shaft through a gear. The output end of the transmission shaft is connected to the deflection device.

[0010] Furthermore, the deflection device includes a deflection switch frame and a deflection switch spindle. The switch frame is a polygonal frame, including an upper frame and a lower frame. The upper and lower ends of the deflection switch spindle are respectively fixedly connected to the upper frame and the lower frame. The lower end of the deflection switch spindle is fixedly connected to the output end of the transmission device. It also includes a plurality of deflection switch insulating ceramic rods. Each of the insulating ceramic rods is arranged parallel to the deflection switch spindle. The upper and lower ends of the insulating ceramic rods are fixedly connected to the upper frame and the lower frame.

[0011] Furthermore, the bias switch spindle and the bias switch insulating ceramic rod are connected by a first connecting arm and a second connecting arm, and a first bias ring and a second bias ring are respectively provided on the first connecting arm and the second connecting wall.

[0012] Furthermore, both the first connecting arm and the second connecting arm are provided with high-frequency transmission paths.

[0013] Furthermore, the bias switch frame, bias switch spindle, bias switch insulating ceramic rod, first connecting arm, and second connecting arm are all made of high-strength, corrosion-resistant materials.

[0014] Furthermore, the gearbox is a worm gear reducer.

[0015] Compared with the prior art, the beneficial technical effects of this application are as follows:

[0016] By adding a self-damping device, this application effectively solves the unreliability problem of high-power shortwave broadcast deflection switches during deceleration and positioning. The generator in the self-damping device works in conjunction with the power resistor, which not only generates a damping effect when the gearbox rotates, slowing down the rotation speed, but also converts mechanical energy into electrical energy, which is then dissipated through the power resistor, achieving efficient energy utilization. Attached Figure Description

[0017] Figure 1 : A schematic diagram of the overall structure of this application;

[0018] Figure 2 : A schematic diagram of the transmission device structure of this application;

[0019] In the figure: 1. Deflection device, 101. Deflection switch frame, 102. Deflection switch main shaft, 103. Deflection switch insulating ceramic rod, 104. First connecting arm, 105. Second connecting wall, 106. First deflection ring, 107. Second deflection ring, 2. Transmission device, 21. Drive motor, 211. Drive motor output shaft, 22. Gearbox, 221. Transmission shaft. Detailed Implementation

[0020] The following embodiments further illustrate the content of this utility model, but should not be construed as limiting the utility model. Any modifications or substitutions made to the methods, steps, or conditions of this utility model without departing from its spirit and essence are within the scope of this utility model.

[0021] In some embodiments, such as Figure 1 As shown, a shortwave broadcast deflection switch with self-damping is provided, including a deflection device 1 and a transmission device 2. The deflection device 1 is used to adjust the transmission direction of the broadcast signal; the output end of the transmission device 2 is connected to the deflection device and is used to transmit the output power of the gearbox to the deflection device to drive the deflection device to adjust the angle.

[0022] The transmission device 2 includes a motor 21 and a reduction gearbox 22. The output shaft of the motor 21 is connected to the transmission shaft 221 of the reduction gearbox 22 via a reversing transmission gear. A self-damping device 3 is located inside the reduction gearbox and connected to the lower end of the transmission shaft 221. When the motor 21 starts, it decelerates through the transmission shaft 221 of the reduction gearbox 22 and transmits the speed to the output end of the transmission device 2, thereby driving the deflection device 1 to adjust the angle. After the deflection device 1 is adjusted to the predetermined position, the motor 21 stops rotating. During this process, the self-damping device generates a damping effect, effectively slowing down the rotation speed of the reduction gearbox and ultimately ensuring reliable positioning of the switch.

[0023] In some embodiments, a self-damping device 3 is provided, including a generator 301 and a power resistor 302. The input shaft of the generator 301 is meshed with the lower end of the transmission shaft 221 via gears, and the generator is electrically connected to the power resistor.

[0024] In this embodiment, after the biasing device 1 is adjusted to the predetermined position, the motor 21 stops rotating. At this time, the self-damping device starts to work, and the power resistor 302 is connected. At this time, the transmission shaft 221 inside the gearbox will continue to rotate due to inertia, which will drive the output shaft of the generator 301 to rotate accordingly, thereby generating electricity. The generated electrical energy is transmitted to the power resistor 302 and consumed. During this process, the generator 301 generates electromagnetic damping, which works with the power resistor 302 to dampen the transmission shaft inside the gearbox, effectively slowing down its rotation speed until it stops rotating, thus achieving reliable positioning of the bias switch.

[0025] The self-damping device 3 in this embodiment has a simple structure and is easy to implement. It can convert mechanical energy into electrical energy and dissipate it through a power resistor, thus achieving efficient energy utilization, reducing energy waste, and making it more environmentally friendly and energy-saving.

[0026] In some embodiments, the biasing device 1 includes a biasing switch frame 101, which is a square frame including an upper frame 1011 and a lower frame 1012. The upper and lower ends of the biasing switch spindle 102 are fixedly connected to the upper frame 1011 and the lower frame 1012, respectively. The lower end of the biasing switch spindle 102 is fixedly connected to the output end of the transmission device 2. The power transmitted by the transmission device 2 drives the biasing switch spindle 102, thereby causing the entire biasing switch frame 101 to adjust its angle.

[0027] In some embodiments, the deflection device 1 further includes a plurality of deflection switch insulating ceramic rods 103 arranged parallel to the deflection switch main shaft 102. Both the upper and lower ends of the deflection switch insulating ceramic rods 103 are fixedly connected to the upper frame 1011 and the lower frame 1012. The deflection switch main shaft 102 and the deflection switch insulating ceramic rods 103 are connected by a first connecting arm 104 and a second connecting arm 105. A first deflection ring 106 and a second deflection ring 107 are respectively provided on the first connecting wall 104 and the second connecting wall 105.

[0028] Both the first connecting arm 104 and the second connecting arm 105 are equipped with high-frequency transmission paths to generate high-frequency electromagnetic fields for transmitting broadcast signals. The first and second deflection rings can adjust the distribution of the high-frequency electromagnetic field, thereby changing the transmission direction of the broadcast signal. In this embodiment, the deflection switch frame, the deflection switch main shaft, the deflection switch sub-shaft, the first connecting arm, and the second connecting arm are all made of high-strength, corrosion-resistant materials, such as high-frequency ceramic rods, polytetrafluoroethylene plates, aluminum castings, and copper castings, to ensure long-term stable operation in outdoor high-frequency, high-voltage environments.

[0029] Although the present invention has been described in detail above with general descriptions, specific embodiments, and experiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A shortwave broadcast deflection switch with self-damping, characterized in that, The self-damped shortwave broadcast bias switch includes: Gearbox (22) The gearbox (22) includes a drive shaft (221) and the drive shaft (221) is connected to a self-damping device (3); The self-damping device (3) is installed inside the gearbox (22). The self-damping device (3) includes a generator (301) and a power resistor (302). The output shaft of the generator (301) is connected to one end of the transmission shaft (221). The generator (301) is electrically connected to the power resistor (302).

2. The shortwave broadcast deflection switch with self-damping as described in claim 1, characterized in that, The shortwave broadcast deflection switch with self-damping also includes a deflection device (1) and a transmission device (2). The transmission device (2) includes the gearbox (22) and a drive motor (21) connected to the input end of the gearbox (22). The deflection device (1) is used to adjust the transmission direction of the broadcast signal. The output shaft (211) of the drive motor is connected to the transmission shaft (221) of the gearbox (22) through a reversing transmission gear. The input shaft of the generator (301) is meshed with the lower end of the transmission shaft (221) through a gear. The output end of the transmission shaft (221) is connected to the deflection device (1).

3. The shortwave broadcast deflection switch with self-damping as described in claim 2, characterized in that, The biasing device includes a biasing switch frame (101) and a biasing switch spindle (102). The switch frame (101) is a polygonal frame, including an upper frame (1011) and a lower frame (1012). The upper and lower ends of the biasing switch spindle (102) are fixedly connected to the upper frame (1011) and the lower frame (1012) respectively. The lower end of the biasing switch spindle (102) is fixedly connected to the output end of the transmission device (2). It also includes a plurality of biasing switch insulating ceramic rods (103). Each of the switch insulating ceramic rods (103) is arranged parallel to the biasing switch spindle (102). The upper and lower ends of the biasing switch insulating ceramic rods (103) are fixedly connected to the upper frame (1011) and the lower frame (1012).

4. The shortwave broadcast deflection switch with self-damping as described in claim 3, characterized in that, The bias switch spindle (102) and the bias switch insulating ceramic rod (103) are connected by a first connecting arm (104) and a second connecting arm (105). A first bias ring (106) and a second bias ring (107) are respectively provided on the first connecting arm (104) and the second connecting arm (105).

5. The shortwave broadcast deflection switch with self-damping as described in claim 4, characterized in that, High-frequency transmission paths are laid on both the first connecting arm (104) and the second connecting arm (105).

6. The shortwave broadcast bias switch with self-damping as described in claim 5, characterized in that, The bias switch frame (101), bias switch spindle (102), bias switch insulating ceramic rod (103), first connecting arm (104), and second connecting arm (105) are all made of high-strength, corrosion-resistant materials.

7. The shortwave broadcast deflection switch with self-damping as described in claim 1, characterized in that, The gearbox is a worm gear reducer.

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