Small-sized high-precision rotating equipment capable of meeting independent polarization of various antennas

Abstract

The utility model discloses a small-sized high-precision rotating device capable of satisfying independent polarization of various antennas, which relates to the technical field of antenna testing and comprises a cylinder, the cylinder is fixedly mounted at the upper end of a base, a handle is fixedly connected to the left end of the base, four heavy-load trundles are mounted at the bottom of the base, and a mounting plate is fixedly connected to the top of the cylinder. A moving plate is slidably mounted at the left end of the mounting plate, a mounting ring is fixedly connected to the periphery of the top of the mounting plate, a driving unit is arranged on the inner side of the mounting ring, an adjusting unit is arranged above the mounting plate, and a high-precision platform is arranged at the top end of the mounting ring. According to the utility model, the driving unit and the adjusting unit are arranged, the gear is used for driving the slewing bearing to rotate, then the high-precision platform drives the antenna to be tested to rotate automatically, and the adjusting unit is used for adjusting the backlash, so that high-precision repeated positioning is realized, the requirements of a laboratory are met, the testing efficiency is improved, the labor cost is reduced, and errors caused by manual operation are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of antenna testing, in particular to a small-sized high-precision rotating device that meets the independent polarization requirements of multiple antennas. Background Art

[0002] As an EMC testing laboratory, a comprehensive design and testing laboratory, or testing center, which has been reviewed and certified by EMC authority and has legal testing qualifications, usually needs to rotate the polarization of the antenna when testing the antenna in the EMC laboratory.

[0003] At present, the traditional testing method is to manually rotate the polarization of the antenna under test in an anechoic chamber to achieve horizontal movement of the object under test to meet the testing requirements. This method has low efficiency in rotating polarization, increases the testing time and labor costs, and the accuracy of manual actions is not high enough. It is difficult to repeat the location each time and multiple adjustments are required, which also poses certain safety hazards. Utility Model Content

[0004] In order to solve the above technical problems, a small-sized high-precision rotating device that can meet the independent polarization of multiple antennas is provided. The technical solution solves the problem that the traditional testing method proposed in the above background technology is mostly to manually rotate the polarization of the antenna under test in a radio wave darkroom to achieve horizontal movement of the object under test to meet the testing requirements. This method has low efficiency in rotating polarization, increases the testing time cost and labor cost, and the accuracy of manual actions is not high enough. It is difficult to repeatedly locate the site each time, and multiple adjustments are required. There are also certain safety hazards.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A small-scale high-precision rotating device that meets the independent polarization requirements of multiple antennas comprises a cylinder, wherein the cylinder is fixedly mounted on the upper end of a base, a handle is fixedly connected to the left end of the base, four heavy-duty casters are installed at the bottom of the base, a mounting plate is fixedly connected to the top of the cylinder, a movable plate is slidably installed at the left end of the mounting plate, a mounting ring is fixedly connected to the top periphery of the mounting plate, a driving unit is provided on the inner side of the mounting ring, an adjustment unit is provided above the mounting plate, a high-precision platform is provided on the top of the mounting ring, a zero-point positioning module is fixedly mounted on the front side of the upper end of the cylinder, a leveling module is fixedly mounted on the outer side of the bottom of the cylinder, observation ports are provided on the left and right side walls of the cylinder, and four legs are fixedly mounted on the bottom of the base.

[0007] Optionally, the driving unit includes a slewing bearing and a planetary reducer, the slewing bearing is rotatably mounted on the inner wall of the mounting ring, the inner wall of the slewing bearing is fixedly connected to a rack, the planetary reducer is fixedly mounted on the lower end of the movable plate, a servo motor is fixedly mounted on the bottom input side of the planetary reducer, the output shaft of the planetary reducer passes through the bottom of the movable plate and is fixedly connected to a gear, and the gear is meshingly connected to the rack.

[0008] Optionally, the adjustment unit includes a fixed plate, which is fixedly connected to the top of the mounting plate, a groove is opened at the left end of the fixed plate, a cross bar is fixedly connected to the left end of the groove, a plurality of bolts are connected to the internal threads of the cross bar, and the left end of the bolt is rotatably connected to the right end of the movable plate.

[0009] Optionally, the high-precision platform is fixedly connected to the top of the slewing bearing, and a quick-change mounting plate is installed on the top of the high-precision platform.

[0010] Optionally, a built-in chassis is provided inside the cylinder, and an electric control output module is provided at the front end of the base.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. This solution is equipped with a driving unit and an adjustment unit, and uses gears to drive the slewing bearing to rotate, so that the high-precision platform drives the antenna under test to rotate automatically, and adjusts the tooth gap through the adjustment unit to achieve high-precision repeated positioning, meet laboratory requirements, improve test efficiency, reduce labor costs, and reduce human operation errors.

[0013] 2. This solution is provided with a quick-change mounting plate. According to the size and shape of the antenna to be tested, the corresponding mounting plate can be quickly replaced to fix the antenna, thereby increasing the diversity of the objects to be tested, having a simple structure, and being easy to operate, thereby improving the practicality of the device and facilitating promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the mounting ring, the driving unit and the adjusting unit in the utility model;

[0016] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0017] The numbers in the figure are:

[0018] 1. Cylinder; 2. Base; 3. Handle; 4. Heavy-duty casters; 5. Mounting plate; 51. Moving plate; 6. Mounting ring; 7. Drive unit; 71. Slewing bearing; 72. Rack; 73. Planetary reducer; 74. Servo motor; 75. Gear; 8. Adjustment unit; 81. Fixed plate; 82. Groove; 83. Crossbar; 84. Bolt; 9. High-precision platform; 91. Quick-change mounting plate; 10. Zero point positioning module; 11. Leveling module; 12. Observation port; 13. Legs; 14. Electronic control output module. DETAILED DESCRIPTION

[0019] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0020] Reference Figure 1 As shown, a small-sized high-precision rotating device that meets the independent polarization of multiple antennas includes a cylinder 1, which is fixedly mounted on the upper end of a base 2, a handle 3 is fixedly connected to the left end of the base 2, four heavy-duty casters 4 are installed at the bottom of the base 2, a mounting plate 5 is fixedly connected to the top of the cylinder 1, a moving plate 51 is slidably installed at the left end of the mounting plate 5, a mounting ring 6 is fixedly connected to the top periphery of the mounting plate 5, a driving unit 7 is provided on the inner side of the mounting ring 6, an adjustment unit 8 is provided above the mounting plate 5, a high-precision platform 9 is provided on the top of the mounting ring 6, a zero-point positioning module 10 is fixedly installed on the front side of the upper end of the cylinder 1, a leveling module 11 is fixedly installed on the outer side of the bottom of the cylinder 1, and observation ports 12 are provided on the left and right side walls of the cylinder 1. Four legs 13 are fixedly installed at the bottom of the base 2. Before use, adjust the length of the legs 13 to ensure the stability of the base 2. The cylinder 1 is kept horizontal through the leveling module 11. According to the size and shape of the antenna to be tested, select the corresponding quick-change mounting plate 91 to install it on the high-precision platform 9 and fix the antenna. During the test, the slewing bearing 71 is driven to rotate by the gear 75, so that the high-precision platform 9 drives the antenna to be tested for rotation test. The movable plate 51 is driven to move by the bolt 84 in the adjustment unit 8, so that the gear 75 is far away from or close to the rack 72, the tooth gap is changed, and the zero point positioning module 10 is cooperated to achieve high-precision repeated positioning, improve the test efficiency, reduce labor costs, and reduce errors.

[0021] Further, such as Figure 2 and Figure 3As shown, the driving unit 7 includes a slewing bearing 71 and a planetary reducer 73. The slewing bearing 71 is rotatably mounted on the inner side wall of the mounting ring 6. The inner side wall of the slewing bearing 71 is fixedly connected with a rack 72. The planetary reducer 73 is fixedly mounted on the lower end of the moving plate 51. A servo motor 74 is fixedly mounted on the bottom input side of the planetary reducer 73. The output shaft of the planetary reducer 73 passes through the bottom of the moving plate 51 and is fixedly connected with a gear 75. The gear 75 is meshed with the rack 72. The adjusting unit 8 includes a fixed plate 81. The fixed plate 81 is fixedly connected to the top of the mounting plate 5. A groove 82 is provided at the left end of the fixed plate 81. A cross bar 83 is fixedly connected to the left end of the groove 82. A plurality of bolts 84 are connected to the internal threads of the cross bar 83. The left end of the bolt 84 is rotatably connected to the right end of the moving plate 51. The high-precision platform 9 is fixedly connected to the top of the slewing bearing 71. A quick-change mounting plate 91 is installed on the top of the high-precision platform 9. The cylinder 1 A built-in chassis is provided inside, and an electric control output module 14 is provided at the front end of the base 2. The electric control output module 14 enables the staff to remotely control the equipment through the optical fiber, and the PLC in the built-in chassis is used to control the servo motor driver to drive the servo motor 74. The servo motor 74 provides power for the planetary reducer 73, so that the planetary reducer 73 drives the gear 75 to rotate, and the gear 75 drives the slewing bearing 71 to rotate through the engagement with the rack 72, and the slewing bearing 71 drives the high-precision platform 9 to rotate, so as to realize the automatic rotation of the antenna under test, and the bolt 84 is rotated to make the bolt 84 drive the moving plate 51 to move, and the moving plate 51 drives the planetary reducer 73 to move, and then the planetary reducer 73 drives the gear 75 to move, so as to change the gap between the gear 75 and the rack 72, and cooperate with the zero point positioning module 10 to realize high-precision repeated positioning, with a simple structure and convenient operation, thereby improving the practicality of the device and facilitating promotion.

[0022] The working principle of the utility model is as follows: before use, the height of the legs 13 is adjusted to keep the base 2 stable, the cylinder 1 is kept in a horizontal state by the leveling module 11, and the corresponding quick-change mounting plate 91 is selected according to the size and shape of the antenna to be tested and installed on the high-precision platform 9 to fix the antenna to be tested. The staff can start the test through the optical fiber remote control device, and the slewing bearing 71 is driven to rotate by the gear 75, so that the high-precision platform 9 drives the antenna to be tested to rotate. When repeating the test, the moving plate 51 and the gear 75 are driven to move by the adjustment unit 8 to change the tooth gap, and high-precision repeated positioning can be achieved in cooperation with the zero-point positioning module 10.

[0023] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A small high-precision rotating device that can meet the independent polarization requirements of multiple antennas, characterized in that: The utility model comprises a cylinder (1), wherein the cylinder (1) is fixedly mounted on the upper end of a base (2), the left end of the base (2) is fixedly connected to a handle (3), the bottom of the base (2) is installed with four heavy-duty casters (4), the top of the cylinder (1) is fixedly connected to a mounting plate (5), the left end of the mounting plate (5) is slidably installed with a moving plate (51), the top periphery of the mounting plate (5) is fixedly connected to a mounting ring (6), the inner side of the mounting ring (6) is provided with a driving unit (7), the upper part of the mounting plate (5) is provided with an adjustment unit (8), the top of the mounting ring (6) is provided with a high-precision platform (9), the front side of the upper end of the cylinder (1) is fixedly mounted with a zero-point positioning module (10), the outer side of the bottom of the cylinder (1) is fixedly mounted with a leveling module (11), the left and right side walls of the cylinder (1) are provided with observation ports (12), and the bottom of the base (2) is fixedly mounted with four legs (13).

2. According to claim 1, a small-sized high-precision rotating device that satisfies independent polarization of multiple antennas is characterized by: The driving unit (7) comprises a slewing bearing (71) and a planetary reducer (73); the slewing bearing (71) is rotatably mounted on the inner side wall of the mounting ring (6); the inner side wall of the slewing bearing (71) is fixedly connected to a rack (72); the planetary reducer (73) is fixedly mounted on the lower end of the moving plate (51); a servo motor (74) is fixedly mounted on the bottom input side of the planetary reducer (73); an output shaft of the planetary reducer (73) passes through the bottom of the moving plate (51) and is fixedly connected to a gear (75); the gear (75) is meshingly connected to the rack (72).

3. According to claim 1, a small-sized high-precision rotating device that can meet the independent polarization requirements of multiple antennas is characterized in that: The adjustment unit (8) comprises a fixing plate (81), wherein the fixing plate (81) is fixedly connected to the top of the mounting plate (5), a groove (82) is provided at the left end of the fixing plate (81), a cross bar (83) is fixedly connected to the left end of the groove (82), a plurality of bolts (84) are connected to the inner thread of the cross bar (83), and the left end of the bolt (84) is rotatably connected to the right end of the movable plate (51).

4. According to claim 1, a small-sized high-precision rotating device that can meet the independent polarization requirements of multiple antennas is characterized in that: The high-precision platform (9) is fixedly connected to the top of the slewing bearing (71), and a quick-change mounting plate (91) is installed on the top of the high-precision platform (9).

5. According to claim 1, a small-sized high-precision rotating device that can meet the independent polarization requirements of multiple antennas is characterized in that: A built-in chassis is provided inside the cylinder (1), and an electric control output module (14) is provided at the front end of the base (2).

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