Antenna orientation transmission assembly

Abstract

The antenna orientation transmission assembly comprises an orientation base assembly and an orientation motor assembly, the orientation base assembly comprises a cross beam support, an orientation large gear and an orientation rotating shaft, the orientation large gear is fixed on an orientation bearing, the cross beam support is rotatably connected with the orientation rotating shaft, and the orientation rotating shaft is rotatably connected with the orientation motor assembly. The azimuth motor assembly comprises an azimuth motor and an azimuth pinion, the azimuth motor is fixed to the cross beam support, an output shaft of the azimuth motor is connected with the azimuth pinion, the azimuth pinion is meshed with the azimuth large gear, and the azimuth motor drives the azimuth pinion to rotate around the azimuth large gear. And meanwhile, the beam bracket is driven to rotate around the azimuth bearing. According to the utility model, not only can the lightweight requirement of the antenna be met, but also the transmission strength and reliability requirements in the antenna tracking process can be met, and the competitiveness of the antenna is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the transmission component technology, in particular to an antenna azimuth transmission component. Background Art

[0002] With the development of communication technology, satellite communication antennas are required to be miniaturized and lightweight. Due to the need for a single soldier to carry it, the weight of this antenna is required to be high. Most domestic satellite communication antennas are reduced in weight by hollowing out structural parts. Due to the limitations of material strength and density, the weight reduction effect cannot reach the target weight of the equipment. Compared with traditional transmission forms, there is currently no 0.2-meter single-soldier-carrying antenna in China that uses nylon gear transmission. Utility Model Content

[0003] The purpose of the utility model is to propose an antenna azimuth transmission component, which is suitable for a single soldier to carry a 0.2-meter-diameter satellite communication antenna. It can not only meet the requirements of antenna lightweight, but also meet the requirements of transmission strength and reliability during antenna tracking, greatly improving the competitiveness of the antenna.

[0004] The technical solution for implementing the utility model is: an antenna azimuth transmission assembly, including an azimuth base assembly and an azimuth motor assembly, the azimuth base assembly includes a beam bracket, an azimuth gear and an azimuth rotating shaft, the azimuth gear is fixed on the azimuth bearing, the beam bracket is rotatably connected to the azimuth rotating shaft, the azimuth motor assembly includes an azimuth motor and an azimuth pinion, the azimuth motor is fixed on the beam bracket, and the output shaft of the azimuth motor is connected to the azimuth pinion, the azimuth pinion is meshed with the azimuth gear, the azimuth motor drives the azimuth pinion to rotate around the azimuth gear, and at the same time drives the beam bracket to rotate around the azimuth bearing.

[0005] Preferably, the central axis of the beam support is connected to the azimuth rotating shaft via an azimuth bearing, the inner ring of the azimuth bearing is fixed to the azimuth bearing, and the outer ring is fixed to the central axis of the beam support.

[0006] Preferably, the inner ring of the azimuth bearing is locked with the azimuth shaft by a locking nut.

[0007] Preferably, the central axis of the crossbeam support is sealed by an azimuth bearing cover.

[0008] Preferably, the azimuth motor is covered with an azimuth motor cover.

[0009] Preferably, a vibration isolation sleeve is provided between the azimuth motor and the azimuth motor cover.

[0010] Preferably, the length of the azimuth motor cover is 2 / 3 of the length of the azimuth motor, covering the connection between the motor servo end and the reducer end.

[0011] Preferably, the middle portion of the azimuth gear is hollow.

[0012] Preferably, a weight-reducing groove is provided on the crossbeam support.

[0013] Compared with the prior art, the utility model has the following significant advantages:

[0014] 1) The azimuth gear in the present invention is supplemented with a weight-reducing groove, which significantly reduces the weight of the antenna.

[0015] 2) The motor cover in the present invention wraps the connection between the motor servo end and the reducer end, and the motor nylon sleeve is used for shock absorption, thereby enhancing the reliability of the motor and preventing the motor from breaking or being damaged in a vibration environment.

[0016] 3) The crossbeam support in the present invention adopts a hollow truss form, which reduces the weight of the antenna without affecting the structural strength.

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a structural schematic diagram of an antenna azimuth transmission component.

[0019] Figure 2 It is a structural schematic diagram of the azimuth base assembly.

[0020] Figure 3 It is a cross-sectional view of the motor assembly.

[0021] Figure 4 It is a schematic diagram of the large gear structure.

[0022] Figure 5 This is the first view of the beam support.

[0023] Figure 6 This is the second view of the beam support.

[0024] Figure 7 It is the first view of the azimuth rotation axis.

[0025] Figure 8 It is the second view of the azimuth rotation axis. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1 As shown, an antenna azimuth transmission assembly includes an azimuth base assembly 1 and an azimuth motor assembly 2.

[0028] like Figure 2As shown, the azimuth seat assembly 1 includes a crossbeam support 21, an azimuth gear 22, an azimuth rotating shaft 23, and an azimuth bearing 24. The azimuth gear 22 is fixed on the azimuth bearing 24, the inner ring of the azimuth bearing 24 is fixed to the azimuth rotating shaft 23, and the central axis of the crossbeam support 21 is fixed to the outer ring of the azimuth bearing 24.

[0029] like Figure 3 As shown, the azimuth motor assembly 2 includes an azimuth motor 31, a vibration isolation sleeve 32, an azimuth motor cover 33 and an azimuth pinion 34. The azimuth motor 31 is fixed on the crossbeam support 21, and the output shaft of the azimuth motor 31 is connected to the azimuth pinion 34, the azimuth pinion 34 is meshed with the azimuth gear 22, and the azimuth motor 31 drives the azimuth pinion 34 to rotate around the azimuth gear 22. Since the azimuth motor 31 is fixed on the crossbeam support 21, when the azimuth pinion 34 rotates around the azimuth gear 22, it drives the crossbeam support 21 to rotate around the azimuth bearing 24. The azimuth motor cover 33 is sleeved on the outside of the azimuth motor 31. The vibration isolation sleeve 32 is arranged between the azimuth motor 31 and the azimuth motor cover 33.

[0030] In a further embodiment, the inner ring of the azimuth bearing 24 is locked with the azimuth shaft 23 via a locking nut 25 .

[0031] In a further embodiment, the central axis of the crossbeam support 21 is sealed by an azimuth bearing cover 26 .

[0032] In a further embodiment, the motor housing is made of high-strength magnesium alloy material, which greatly reduces the weight of the antenna while ensuring the strength of the structural parts. The length of the motor housing is about 2 / 3 of the length of the motor, wrapping the connection between the motor servo end and the reducer end, supplemented by the motor nylon sleeve for shock absorption, which enhances the reliability of the motor and prevents the motor from breaking or being damaged in a vibrating environment. The azimuth pinion needs to be repeatedly meshed, so it is treated with 7075 aluminum alloy hard anodizing to ensure the strength of the tooth surface and tooth root.

[0033] In a further embodiment, the azimuth shaft 23 is fixed in the bottom cover of the antenna as the base of the entire antenna. The azimuth base is designed with a shaft shoulder to facilitate the installation of the azimuth shaft 23. The azimuth bearing 24 is firmly clamped in the bearing slot 54 through a locking nut. The inner ring of the bearing and the azimuth base are assembled in a transition fit and locked by a locking nut 25. The crossbeam bracket and the outer ring of the bearing are also transition fits, and the crossbeam bracket can rotate freely around the rotation center 53 through the azimuth bearing. Finally, the bearing slot is sealed by the azimuth bearing cover.

[0034] In a further embodiment, the main material of the azimuth gear is nylon 1010, the gear module is 1, the number of teeth is 139, and the thickness of the toothed disc is 7 mm to ensure its strength. The gear structure is as follows: Figure 4As shown, the middle part of the gear is hollowed out to further reduce the weight, and the positioning slots are used to ensure installation accuracy.

[0035] Beam support Figure 5 As shown in the figure, the main body is made of AZ31B magnesium alloy, with a weight-reducing groove on the back to reduce weight, and a suitable rib structure to strengthen the crossbeam bracket. The side is designed with a wiring groove cover and a wire turn fixing hole to make the product wiring beautiful. The top of the crossbeam bracket is flat, which is convenient for installing various modules and components used in the antenna. The inside of the crossbeam bracket is designed with a card foot and a large rounded corner to ensure the strength of the crossbeam bracket and prevent breakage. The crossbeam bracket rotates around the rotation center under the drive of the azimuth motor assembly.

[0036] Position base Figure 6 As shown in the figure, to ensure the strength of the structure, it is made of 7075-T6 aluminum alloy. The bottom is designed with a weight-reducing groove, and the middle of the base is hollowed out for cables to pass through. A rotating joint can be installed to prevent the cables from getting tangled.

[0037] In the present invention, the azimuth base assembly 1 cooperates with the azimuth motor assembly 2, the azimuth motor output shaft rotates to drive the small gear to rotate, and the azimuth large and small gears mesh with each other, thereby driving the crossbeam bracket to rotate, thereby realizing the azimuth rotation function of the antenna.

[0038] In the present invention, the azimuth rotation axis is fixed in the antenna cover bottom cover as the base of the entire antenna, and the crossbeam bracket rotates around the axis through the azimuth bearing, such as Figure 3 The azimuth gears mesh with each other, driving the antenna to perform azimuth transmission.

Claims

1. An antenna azimuth transmission assembly, characterized in that: The invention comprises an azimuth base assembly (1) and an azimuth motor assembly (2), wherein the azimuth base assembly (1) comprises a crossbeam support (21), a large azimuth gear (22) and an azimuth rotating shaft (23), wherein the large azimuth gear (22) is fixed on an azimuth bearing (24), and the crossbeam support (21) is rotationally connected to the azimuth rotating shaft (23); the azimuth motor assembly (2) comprises an azimuth motor (31) and an azimuth pinion gear (34), wherein the azimuth motor (31) is fixed on the crossbeam support (21), and the output shaft of the azimuth motor (31) is connected to the azimuth pinion gear (34), and the azimuth pinion gear (34) is meshed with the large azimuth gear (22), and the azimuth motor (31) drives the azimuth pinion gear (34) to rotate around the large azimuth gear (22), and at the same time drives the crossbeam support (21) to rotate around the azimuth bearing (24).

2. The antenna azimuth transmission assembly according to claim 1, characterized in that: The central axis of the crossbeam support (21) is connected to the azimuth rotating shaft (23) via an azimuth bearing (24); the inner ring of the azimuth bearing (24) is fixed to the azimuth bearing (24), and the outer ring is fixed to the central axis of the crossbeam support (21).

3. The antenna azimuth transmission assembly according to claim 2, characterized in that: The inner ring of the azimuth bearing (24) is locked with the azimuth rotating shaft (23) via a locking nut (25).

4. The antenna azimuth transmission assembly according to claim 1, characterized in that: The central axis of the crossbeam support (21) is sealed by an azimuth bearing cover (26).

5. The antenna azimuth transmission assembly according to claim 1, characterized in that: The azimuth motor (31) is covered with an azimuth motor cover (33) on the outside.

6. The antenna azimuth transmission assembly according to claim 5, characterized in that: A vibration isolation sleeve (32) is provided between the azimuth motor (31) and the azimuth motor cover (33).

7. The antenna azimuth transmission assembly according to claim 5, characterized in that: The length of the azimuth motor cover (33) is 2 / 3 of the length of the azimuth motor (31), and covers the connection between the motor servo end and the reducer end.

8. The antenna azimuth transmission assembly according to claim 1, characterized in that: The middle part of the azimuth gear is hollowed out.

9. The antenna azimuth transmission assembly according to claim 1, characterized in that: The crossbeam support (21) is provided with a weight-reducing groove.

Images