Antenna pitch angle adjusting device

Abstract

The utility model belongs to the technical field of radar antenna equipment, and relates to an antenna pitch angle adjusting device which comprises a pitch driven shaft, a primary adjusting assembly coaxially connected with the pitch driven shaft, a secondary adjusting assembly coaxially connected with the primary adjusting assembly and a spring. The pitching driven shaft is coaxially and fixedly connected with the antenna; the first-stage adjusting assembly is coaxially and fixedly connected with the pitching driven shaft; the second-stage adjusting assembly is coaxially and movably connected with the first-stage adjusting assembly through a spring, and the second-stage adjusting assembly and the first-stage adjusting assembly are meshed or separated through deformation of the spring. According to the utility model, the pitching driven shaft, the primary adjusting assembly, the secondary adjusting assembly and the antenna are coaxially arranged, so that the coaxiality among the components is ensured, friction and gaps caused by non-coaxiality among the components are reduced, the stability of the adjustment of the pitching angle of the antenna is improved, and meanwhile, through the mutual cooperation of the primary adjusting assembly and the secondary adjusting assembly, the adjustment precision of the pitching angle of the antenna is improved. Precise adjustment of the pitching angle of the antenna is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to radar antenna equipment technical field, concretely relates to a kind of antenna pitch angle adjusting device. BACKGROUND

[0002] Antenna is a kind of electromagnetic wave conversion device in certain range of emission or reception, is widely used in radio equipment using radio wave, wireless local area network two-way communication equipment and for radar and space exploration radio telescope. Antenna pitch angle is the included angle between antenna installation and horizontal plane, is the key factor influencing signal coverage range and communication quality;Through adjusting the pitch angle of antenna, signal distribution can be optimized, interference can be effectively reduced, and user experience can be improved.

[0003] There is certain research on antenna pitch angle adjusting device in prior art, see patent literature with application number 202123119244.6, a kind of radar antenna array pitch angle adjusting device is disclosed, which is composed of supporting mechanism, fixed component, connecting component, first adjusting component, second adjusting component, mounting piece and active adjusting mechanism and multiple components. Among them, fixed component is connected with supporting mechanism, and is movably connected with connecting component;Connecting component is directly connected with radar antenna;First adjusting component and second adjusting component are respectively located at the two sides of mounting piece, and are respectively rotatably connected with supporting mechanism and mounting piece;Active adjusting mechanism is fixedly connected with mounting piece through nut, and the upper end of lead screw is rotatably connected with fixed component. In specific use process, if the pitch angle of antenna array needs to be reduced, the operator manually rotates the handle at the lower end of lead screw, so that the lead screw rotates;At this time, the nut moves upward along the lead screw, drives the mounting piece, the first adjusting rod and the connecting place of second adjusting rod and mounting piece, the third adjusting rod and the connecting place of fourth adjusting rod and mounting piece to move upward synchronously, the one end of first adjusting rod and second adjusting rod, the other end of third adjusting rod and fourth adjusting rod move downward relatively, so as to drive radar antenna to swing downward through connecting support, reduce the angle between radar antenna and supporting mechanism. Conversely, reverse rotation of lead screw can increase the angle between radar antenna and supporting mechanism, so as to achieve the purpose of adjusting the pitch angle of radar antenna.

[0004] As can be seen, through the cooperation of lead screw and nut, the adjustment of antenna array angle can be easily realized. However, in the adjustment process, due to the friction between lead screw and nut and the gap between components, the antenna array is prone to shaking or shaking phenomenon, which further leads to unstable signal reception and affects signal transmission quality. UTILITY MODEL CONTENT

[0005] In order to solve the technical problem that the antenna array is prone to shaking or jittering due to the friction between the screw rod and the nut and the gap between the components in the background art, and the signal reception is unstable, the utility model provides an antenna elevation angle adjusting device.

[0006] The utility model antenna elevation angle adjusting device, when the primary regulation subassembly and the secondary regulation subassembly separate, through to the primary regulation subassembly and realize the antenna elevation angle's coarse adjustment of the force, when the primary regulation subassembly and the secondary regulation subassembly engage, through to the secondary regulation subassembly and realize the antenna elevation angle's fine adjustment of the force. The utility model in the elevation driven shaft, primary regulation subassembly, secondary regulation subassembly and antenna are coaxial arrangement, ensure the coaxiality between each component, reduce the friction and the gap because of the misalignment between components, improve the stability of antenna elevation angle adjustment, simultaneously, through primary regulation subassembly and secondary regulation subassembly cooperation, realize the accurate adjustment of antenna elevation angle, improve the accuracy of antenna elevation angle adjustment.

[0007] In order to solve the above technical problem, the utility model provides the following technical scheme:

[0008] An antenna elevation angle adjusting device, an elevation driven shaft, a primary regulation subassembly coaxially connected with the elevation driven shaft, a secondary regulation subassembly coaxially connected with the primary regulation subassembly, and a spring; the elevation driven shaft is fixedly connected with the antenna in a coaxial manner; the primary regulation subassembly is fixedly connected with the elevation driven shaft in a coaxial manner; the secondary regulation subassembly is movably connected with the primary regulation subassembly in a coaxial manner through the spring, and the secondary regulation subassembly is engaged with or separated from the primary regulation subassembly through the deformation of the spring itself.

[0009] In a specific implementation, the primary regulation subassembly comprises a second elevation locking gear disc and a third elevation locking gear disc; the second elevation locking gear disc is fixedly connected with the elevation driven shaft in a coaxial manner; and the third elevation locking gear disc is engaged with the second elevation locking gear disc in a coaxial manner.

[0010] In a specific implementation, the secondary regulation subassembly comprises a first elevation locking gear disc, a fourth elevation locking gear disc, and a rotating shaft sleeve; the fourth elevation locking gear disc is engaged with the third elevation locking gear disc in a coaxial manner through the spring, the spring is sleeved on the third elevation locking gear disc, one end of the spring is fixedly connected with the end of the third elevation locking gear disc away from the second elevation locking gear disc, and the other end of the spring is fixedly connected with the fourth elevation locking gear disc; when the spring is compressed, the first elevation locking gear disc is separated from the fourth elevation locking gear disc, and when the spring returns to its original length, the first elevation locking gear disc is engaged with the fourth elevation locking gear disc in a coaxial manner; and the rotating shaft sleeve is sleeved on the outer periphery of the first elevation locking gear disc, and the rotating shaft sleeve is fixedly connected with the first elevation locking gear disc in a coaxial manner.

[0011] In one specific implementation, the secondary adjustment assembly further comprises a positioning ring; the positioning ring is connected to the rotating shaft sleeve at an end away from the first pitch locking gear plate.

[0012] In one specific implementation, the rotating shaft sleeve has a diameter R1, the first pitch locking gear plate has a diameter R2, and R1=(1-2)R2.

[0013] In one specific implementation, the primary adjustment assembly further comprises a locking shaft sleeve; the locking shaft sleeve is sleeved on the outer periphery of the third pitch locking gear plate, and the locking shaft sleeve is fixedly connected with the third pitch locking gear plate.

[0014] In one specific implementation, the locking shaft sleeve has a diameter R3, the third pitch locking gear plate has a diameter R4, and R3=(1-2)R4.

[0015] In one specific implementation, the outer wall of the rotating shaft sleeve is fixedly connected with a fine adjustment pull ring.

[0016] In one specific implementation, the first pitch locking gear plate is provided with a pressing block at an end away from the fourth pitch locking gear plate.

[0017] In one specific implementation, R3=(0.3-0.8)R1.

[0018] In summary, the utility model has the following beneficial technical effects:

[0019] 1. The antenna pitch angle adjustment device of the utility model, when the primary adjustment assembly and the secondary adjustment assembly are separated, the antenna pitch angle is coarsely adjusted by applying force to the primary adjustment assembly, when the primary adjustment assembly and the secondary adjustment assembly are engaged, the antenna pitch angle is finely adjusted by applying force to the secondary adjustment assembly. In the utility model, the pitch driven shaft, the primary adjustment assembly, the secondary adjustment assembly and the antenna are coaxially arranged, the coaxiality between the components is ensured, the friction and the gap generated due to the misalignment between the components are reduced, the stability of the antenna pitch angle adjustment is improved, at the same time, the precise adjustment of the antenna pitch angle is realized through the cooperation of the primary adjustment assembly and the secondary adjustment assembly, and the accuracy of the antenna pitch angle adjustment is improved.

[0020] 2. The antenna pitch angle adjustment device of the utility model, the third pitch locking gear plate is coaxially engaged with the second pitch locking gear plate, the first pitch locking gear plate is coaxially engaged with the fourth pitch locking gear plate, the close cooperation between the locking gear plates is ensured, so that greater torque is transmitted during the antenna pitch angle adjustment process, and the reliability and the stability of the antenna pitch angle adjustment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1It is the overall structure schematic diagram of the antenna pitch angle adjusting device.

[0022] Fig. 2 It is the exploded view of the antenna pitch angle adjusting device.

[0023] Fig. 3 It is the pressing view of the antenna pitch angle adjusting device.

[0024] The reference signs are explained as follows: 1, pressing block; 2, positioning ring; 3, first pitch locking tooth disc; 4, fine adjustment pull ring; 5, rotating shaft sleeve; 6, locking shaft sleeve; 7, second pitch locking tooth disc; 8, third pitch locking tooth disc; 9, pitch driven shaft; 10, fourth pitch locking tooth disc; 11, spring. DETAILED DESCRIPTION

[0025] The technical scheme of the utility model will be further explained and described in connection with the drawings and embodiments, but the utility model is not limited to the following described embodiments.

[0026] The antenna is a kind of conversion device for emitting or receiving electromagnetic wave in a certain range, and is widely used in radio equipment using radio wave, wireless local area network two-way communication equipment and radio telescope for radar and space exploration.The antenna pitch angle refers to the included angle between antenna installation and horizontal plane, and is the key factor influencing signal coverage range and communication quality;By adjusting the pitch angle of antenna, optimize signal distribution, reduce interference, improve user experience.

[0027] The utility model aims at providing a kind of antenna pitch angle adjusting device, when primary regulation component and secondary regulation component separate, the coarse adjustment of antenna pitch angle is realized by the force to primary regulation component, when primary regulation component and secondary regulation component engage, the fine adjustment of antenna pitch angle is realized by the force to secondary regulation component.In the utility model, pitch driven shaft 9, primary regulation component, secondary regulation component and antenna are coaxially arranged, ensure the coaxiality between each component, reduce the friction and gap generated due to the misalignment between components, improve the stability of antenna pitch angle adjustment, at the same time, by the cooperation of primary regulation component and secondary regulation component, the precise adjustment of antenna pitch angle is realized, improve the accuracy of antenna pitch angle adjustment.

[0028] Embodiment 1:

[0029] Reference Figs. 1-3The application discloses an antenna elevation angle adjusting device, which comprises an elevation driven shaft 9, a primary adjusting assembly coaxially connected with the elevation driven shaft 9, a secondary adjusting assembly coaxially connected with the primary adjusting assembly and a spring 11. The elevation driven shaft 9 is fixedly connected with an antenna coaxially; the primary adjusting assembly is fixedly connected with the elevation driven shaft 9 coaxially; the secondary adjusting assembly is movably connected with the primary adjusting assembly coaxially through the spring 11, and the spring 11 makes the secondary adjusting assembly engage or separate from the primary adjusting assembly through deformation. The spring 11 is arranged to make the first elevation locking gear plate 3 and the fourth elevation locking gear plate 10 quickly engage and separate, improve the efficiency of the antenna elevation angle adjusting, and further improve the stability of the antenna elevation angle adjusting by absorbing impact and vibration through deformation during the antenna elevation angle adjusting.

[0030] The primary adjusting assembly comprises a second elevation locking gear plate 7, a third elevation locking gear plate 8 and a locking shaft sleeve 6. The second elevation locking gear plate 7 is fixedly connected with the elevation driven shaft 9 coaxially; the third elevation locking gear plate 8 is engagedly connected with the second elevation locking gear plate 7 coaxially; the locking shaft sleeve 6 is arranged on the outer periphery of the third elevation locking gear plate 8 and is fixedly connected with the third elevation locking gear plate 8; and the locking shaft sleeve 6 is arranged on the outer periphery of the third elevation locking gear plate 8 and is fixedly connected with the third elevation locking gear plate 8, so that the locking shaft sleeve 6 supports the third elevation locking gear plate 8 and enhances the structural stability of the adjusting device.

[0031] Further, the diameter of the locking shaft sleeve 6 is R3, the diameter of the third elevation locking gear plate 8 is R4, and R3=(1-2)R4. Specifically, there is no specific ratio value between R3 and R4, and a proper ratio relationship between R3 and R4 can be selected according to the diameter of the antenna to ensure the accuracy and stability of the antenna elevation angle adjusting; in the embodiment, R3=1.46R4, R3=76mm, and R4=52mm.

[0032] The secondary adjusting assembly comprises a first pitch locking gear plate 3, a fourth pitch locking gear plate 10, a rotating shaft sleeve 5 and a positioning ring 2. The fourth pitch locking gear plate 10 is coaxially connected with the third pitch locking gear plate 8 through a spring 11. The spring 11 is sleeved on the third pitch locking gear plate 8, and one end of the spring 11 is fixedly connected with the end of the third pitch locking gear plate 8 away from the second pitch locking gear plate 7, and the other end of the spring 11 is fixedly connected with the fourth pitch locking gear plate 10. When the spring 11 is compressed, the first pitch locking gear plate 3 is separated from the fourth pitch locking gear plate 10. When the spring 11 returns to the original length, the first pitch locking gear plate 3 is coaxially connected with the fourth pitch locking gear plate 10. The rotating shaft sleeve 5 is sleeved on the outer periphery of the first pitch locking gear plate 3, and is fixedly connected with the first pitch locking gear plate 3 coaxially. The rotating shaft sleeve 5 supports the first pitch locking gear plate 3, and further enhances the structural stability of the adjusting device. The positioning ring 2 is connected to the end of the rotating shaft sleeve 5 away from the first pitch locking gear plate 3. The positioning ring 2 provides axial positioning and support for the rotating shaft sleeve 5, ensures the stable installation of the rotating shaft sleeve 5 on the first pitch locking gear plate 3, prevents the rotating shaft sleeve 5 from moving or shaking axially during the adjustment process, and thus improves the stability and accuracy of the entire adjusting device.

[0033] Further, the outer wall of the rotating shaft sleeve 5 is fixedly connected with a fine adjustment pull ring 4. When the spring 11 is in the original length state, the first pitch locking gear plate 3 can be driven to move synchronously by applying force to the fine adjustment pull ring 4, so as to realize the fine adjustment of the antenna pitch angle. The operation is convenient, and the adjustment efficiency of the antenna pitch angle is improved.

[0034] Further, the diameter of the rotating shaft sleeve 5 is R1, the diameter of the first pitch locking gear plate 3 is R2, and R1=(1-2)R2. Specifically, there is no specific ratio value between R1 and R2. A suitable ratio relationship between R1 and R2 is selected according to the diameter of the antenna, so as to facilitate the adjustment of the antenna pitch angle. In the embodiment, R1=1.36R2, R1=95mm, and R2=70mm.

[0035] Further, R3=(0.3-0.8)R1. Specifically, there is no specific ratio value between R3 and R1. A corresponding ratio relationship between R3 and R1 is selected according to the required adjustment accuracy and efficiency of the antenna pitch angle, so as to facilitate the accurate and smooth adjustment of the antenna pitch angle. In the embodiment, R3=0.8R1, R3=76mm, and R1=95mm.

[0036] Further, the first pitch locking gear plate 3 is provided with a pressing block 1 away from one end of the fourth pitch locking gear plate 10. By arranging the pressing block 1, it is convenient to apply force to the first pitch locking gear plate 3, so that the first pitch locking gear plate 3 moves along the axial direction, the second pitch locking gear plate 7 is pushed to move along the axial direction by the first pitch locking gear plate 3, and the spring 11 is compressed by the second pitch locking gear plate 7, so that the pitch angle of the antenna can be coarsely adjusted, and the adjustment efficiency of the pitch angle of the antenna is further improved.

[0037] The working principle of the antenna pitch angle adjusting device is as follows: the pressing block 1 is pressed, the spring 11 is compressed, the fourth pitch locking gear plate 10 slides along the axial direction of the third pitch locking gear plate 8, the first pitch locking gear plate 3 and the fourth pitch locking gear plate 10 are separated, at the same time, force is applied to the locking shaft sleeve 6, the third pitch locking gear plate 8, the second pitch locking gear plate 7 and the pitch driven shaft 9 are synchronously rotated, so that the antenna is rotated, and the coarse adjustment of the pitch angle of the antenna is realized; the pressing block 1 is released, the spring 11 returns to the original length, the fourth pitch locking gear plate 10 slides along the axial direction of the third pitch locking gear plate 8, the first pitch locking gear plate 3 and the fourth pitch locking gear plate 10 are engaged, at the same time, the fine adjustment pull ring 4 is rotated, the first pitch locking gear plate 3, the fourth pitch locking gear plate 10, the third pitch locking gear plate 8, the second pitch locking gear plate 7 and the pitch driven shaft 9 are synchronously rotated, so that the antenna is rotated, and the fine adjustment of the pitch angle of the antenna is realized.

[0038] The preferred embodiments of the utility model are not limited to the protection scope of the utility model, so that: all equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. An antenna tilt angle adjustment apparatus, characterized by, The utility model relates to an antenna elevation adjusting device, including: a pitch driven shaft (9), a primary adjusting assembly coaxially connected with the pitch driven shaft (9), a secondary adjusting assembly coaxially connected with the primary adjusting assembly and a spring (11); the pitch driven shaft (9) is fixedly connected with the antenna coaxially; the primary adjusting assembly is fixedly connected with the pitch driven shaft (9) coaxially; the secondary adjusting assembly is movably connected with the primary adjusting assembly coaxially through the spring (11), and the secondary adjusting assembly is engaged with or separated from the primary adjusting assembly through the deformation of the spring (11) itself.

2. The antenna tilt adjustment apparatus of claim 1, wherein: the primary adjusting assembly includes a second pitch locking gear disc (7) and a third pitch locking gear disc (8); the second pitch locking gear disc (7) is fixedly connected with the pitch driven shaft (9) coaxially; the third pitch locking gear disc (8) is engaged with the second pitch locking gear disc (7) coaxially.

3. The antenna tilt adjustment apparatus of claim 2, wherein: the secondary adjusting assembly includes a first pitch locking gear disc (3), a fourth pitch locking gear disc (10) and a rotating shaft sleeve (5); the fourth pitch locking gear disc (10) is movably connected with the third pitch locking gear disc (8) coaxially through the spring (11), the spring (11) is sleeved on the third pitch locking gear disc (8), one end of the spring (11) is fixedly connected with the end of the third pitch locking gear disc (8) away from the second pitch locking gear disc (7), and the other end of the spring (11) is fixedly connected with the fourth pitch locking gear disc (10); when the spring (11) is compressed, the first pitch locking gear disc (3) is separated from the fourth pitch locking gear disc (10), and when the spring (11) returns to the original length, the first pitch locking gear disc (3) is engaged with the fourth pitch locking gear disc (10) coaxially; the rotating shaft sleeve (5) is sleeved on the outer periphery of the first pitch locking gear disc (3), and the rotating shaft sleeve (5) is fixedly connected with the first pitch locking gear disc (3) coaxially.

4. The antenna tilt adjustment apparatus of claim 3, wherein: the secondary adjusting assembly further includes a positioning ring (2); the positioning ring (2) is connected to the end of the rotating shaft sleeve (5) away from the first pitch locking gear disc (3).

5. The antenna tilt adjustment apparatus of claim 3, wherein: the diameter of the rotating shaft sleeve (5) is R1, the diameter of the first pitch locking gear disc (3) is R2, and R1=(1-2)R2.

6. The antenna tilt adjustment apparatus of claim 5, wherein: the primary adjusting assembly further includes a locking shaft sleeve (6); the locking shaft sleeve (6) is sleeved on the outer periphery of the third pitch locking gear disc (8), and the locking shaft sleeve (6) is fixedly connected with the third pitch locking gear disc (8).

7. The antenna tilt adjustment apparatus of claim 6, wherein: the diameter of the locking shaft sleeve (6) is R3, the diameter of the third pitch locking gear disc (8) is R4, and R3=(1-2)R4.

8. The antenna tilt adjustment apparatus of claim 3, wherein: the outer wall of the rotating shaft sleeve (5) is fixedly connected with a fine adjustment pull ring (4).

9. The antenna tilt adjustment apparatus of claim 3, wherein: the end of the first pitch locking gear disc (3) away from the fourth pitch locking gear disc (10) is provided with a pressing block (1).

10. The antenna tilt adjustment apparatus of claim 7, wherein: R3=(0.3-0.8)R1.

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