CN216529358U

CN216529358U - Integrated angle sensing device for large-caliber parabolic antenna

Info

Publication number: CN216529358U
Application number: CN202122203310.1U
Authority: CN
Inventors: 高军; 翁卫锋
Original assignee: Shengle Information Technolpogy Shanghai Co Ltd
Current assignee: Shengle Information Technolpogy Shanghai Co Ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-05-13
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses an integrated angle sensing device for a large-caliber parabolic antenna, which is characterized in that: including sealed box body, main shaft, change soon, four spacing piece and four limit switch of colliding, be equipped with ventilative subassembly on the sealed box body, main shaft one end is connected with antenna azimuth axis or antenna pitch axis, and the other end passes sealed box body and is located sealed box body, change soon and four spacing piece of colliding from last down overlap in proper order and be located sealed box body on the main shaft, change soon and spacing piece of colliding is connected with the aviation socket in the sealed box body through angle induction cable and spacing instruction cable respectively, four limit switch establish in sealed box body with four spacing piece one-to-one of colliding, adjust the limit switch that spacing piece bears the top of pressure and corresponds and accomplish azimuth or pitch angle limit position and set for, and then provide antenna azimuth and pitch angle and instruct. The integrated design of the utility model improves the integration level of the angle sensor and the field debugging and maintenance efficiency.

Description

Integrated angle sensing device for large-caliber parabolic antenna

Technical Field

The utility model relates to an integrated angle sensing device for a large-caliber parabolic antenna, which is suitable for a limiting type and a full-moving type large-caliber parabolic antenna and belongs to the field of satellite communication ground station antennas.

Background

Satellite communication ground stations generally require a large-caliber parabolic antenna to be matched for precisely aligning a synchronous orbit communication satellite, transmitting microwave signals to the satellite and receiving microwave communication signals from the satellite. The large-caliber parabolic antenna mostly adopts an azimuth/elevation transmission mode to realize the adjustment of the antenna direction. The pointing direction of the antenna is generally directly described as (azimuth, elevation).

The large-aperture parabolic antenna is narrow in transmitting and receiving beam, and needs to be driven by a servo to continuously adjust the azimuth angle and the pitch angle in the working process so as to always track and aim at a target communication satellite. Therefore, the accuracy requirements for the indication of the azimuth and pitch angles are high. Meanwhile, for the safety of the antenna, the range of motion in the azimuth and elevation directions, i.e., the angle limit, needs to be structurally defined. The general azimuth and elevation respectively have two limiting angles, and the antenna pointing direction can be limited in a safe and reasonable working range.

As shown in fig. 1, the antenna of the limited mount is generally of a vertical azimuth/elevation type, and the antenna structure mainly includes: the device comprises a main surface 1, a secondary surface support 2, a secondary surface 3, a feed source 4, a tripod 5, an azimuth rotary transformer 6, an azimuth limit 7, an escalator 8, a stand column 9, a pitching rotary transformer 10, a pitching limit 11, a central body 12, a back frame 13 and the like. The azimuth rotary transformer 6 is installed at the lower azimuth shaft combination part, and azimuth angle indication is obtained by sensing rotation of the azimuth shaft. The azimuth limit 7 is generally arranged at two ends of an azimuth shaft, and when the azimuth shaft reaches a limit position, the limit switch is triggered through collision, so that the antenna is braked. Similarly, the pitch rotary transformer 10 is arranged in a pitch transmission box, and the pitch angle indication is obtained by sensing the expansion of a pitch screw rod. The pitching limiting 11 is a limiting switch mounting position, and when the two ends of the pitching screw rod reach the limiting positions, the limiting switch is pressed against through the transmission mechanism, and the antenna is triggered to brake.

As shown in fig. 2, the fully compliant mount antenna is typically mounted on a tower footing 15, and the antenna structure mainly includes: the device comprises a main surface 1, a secondary surface support 2, a secondary surface 3, a feed source 4, an azimuth rotary transformer 6, an azimuth limit 7, an escalator 8, a pitch rotary transformer 10, a pitch limit 11, a central body 12, a back frame 13, a support lug 14, a tower foundation 15, a fork arm 16 and the like. The azimuth rotary transformer 6 is arranged at the transmission part of the azimuth gear shaft, and azimuth angle indication is obtained by sensing the rotation of the azimuth shaft. The azimuth limit 7 is generally arranged on the other side of the azimuth gear shaft, and when the azimuth gear reaches a limit position, the limit switch is triggered through collision, so that the antenna is braked. Similarly, the pitch resolver 10 is mounted in a pitch gear box, and a pitch angle indication is obtained by sensing the rotational position of the pitch gear. The pitching limiting 11 is a limiting switch mounting position, and when the pitching gear rotates to the limiting position, the limiting switch is pressed by the transmission mechanism to trigger the braking of the antenna.

Whether the antenna is a limited mount antenna or a full-moving mount antenna, the currently common azimuth or elevation angle sensor and the azimuth or elevation limiting device are installed separately. If the pitching angle sensor of the full movable seat frame antenna is arranged below the supporting lug 14 at one side, and the pitching limiting device is arranged below the supporting lug at the other side.

The separate mounting has the advantage that when one of the rotary change or limit stop devices fails, only one of the devices needs to be removed. The shortcoming of disconnect-type installation is very obvious, because of revolving to become with spacing corresponding all be the angle, so, in the debugging process, both degree of association are very strong, install two positions, the debugging personnel need to go back and forth the ripples, still easily consider one another, the debugging work load is very big. In particular, since the rotating and limiting devices are mounted on the transmission mechanism of the azimuth or pitch axis, in order to accurately and linearly map the rotation angle, the rotating and limiting devices need to be strictly aligned with the axis of the transmission mechanism. Obviously, two devices are separately installed, the axes need to be accurately aligned twice, the coaxiality is difficult to be consistent, and the debugging difficulty of the separate installation is higher in actual work.

The large-aperture parabolic antenna azimuth and pitch angle sensing and limiting device is usually installed separately, and the angle sensor and the limiting device are mutually associated, so that the field debugging workload is large and the efficiency is low due to the separate installation. According to inspection, the related patent technologies of the utility model mainly comprise: the utility model patent application of application number CN 104779762 a discloses a rotary transformer for a rotary motor, which aims at the problems of unclear installation and positioning of the rotary transformer of the motor, large debugging workload and complex installation and disassembly, and provides a rotary transformer device capable of being fixedly installed and convenient for field maintenance. The utility model discloses a utility model patent of No. CN 207588743U "a resolver position detection device for motor", expressed one kind and has been distinguished from traditional photoelectric type and mechanical type resolver position detection device's constitution, mechanism and work flow.

The two patents mainly describe the position detection and structure of the rotation of the motor, and the angle sensing device or rotation used on the large-caliber parabolic antenna has great difference with the form, structure and installation position.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: aiming at the problem that the installation and debugging of the existing split type angle sensor of the large-caliber parabolic antenna are inconvenient, the installation and debugging convenience is improved and the installation, debugging and maintenance efficiency of the integrated angle sensing device for the large-caliber parabolic antenna is improved by adopting an integrated design according to the structural characteristics of the antenna.

In order to solve the above problems, the present invention provides an integrated angle sensing device for a large-aperture parabolic antenna, comprising: including sealed box body, main shaft, change soon, four spacing piece and four limit switch of colliding, be equipped with ventilative subassembly on the sealed box body, main shaft one end is connected with antenna azimuth axis or antenna pitch axis, and the other end passes sealed box body and is located sealed box body, change soon and four spacing piece of colliding from last down overlap in proper order and be located sealed box body on the main shaft, change soon and spacing piece of colliding is connected with the aviation socket in the sealed box body through angle induction cable and spacing instruction cable respectively, four limit switch establish in sealed box body with four spacing piece one-to-one of colliding, adjust the limit switch that spacing piece bears the top of pressure and corresponds and accomplish azimuth or pitch angle limit position and set for, and then provide antenna azimuth and pitch angle and instruct.

Preferably, the main shaft is connected with the antenna azimuth axis or the antenna elevation axis through a connecting shaft.

Preferably, the limit collision block is sleeved on the main shaft through a positioning piece, the limit collision block is adjusted to press against a corresponding limit switch and fix the positioning piece, and the setting of the limit position of the corresponding azimuth or pitch angle is completed.

Preferably, the main shaft is provided with four grooves for installing the limiting collision blocks along the circumferential direction.

Preferably, the sealed box body includes base and sealed cowling, the aviation socket is established on the base, the sealed cowling covers on the base, ventilative subassembly is established on the sealed cowling.

Preferably, the sealed box body is provided with a control interface for protecting the aviation socket.

Preferably, the rotation becomes a mechanical rotary transformer or a digital photoelectric encoder.

Preferably, the ventilation assembly is a ventilation valve, and the ventilation valve is arranged at the top of the sealed box body.

Preferably, one end of the main shaft is a cylindrical end and is used for connecting a connecting shaft piece, and the other end of the main shaft is a square column head with a screw hole and is used for installing a rotary transformer.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the angle sensing device integrates the rotary transformer and the limiting collision block into a sealable box body, changes the traditional installation mode of separating the rotary transformer angle sensing device and the limiting device into an integrated mode, improves the integration level, realizes one-time installation and one-position debugging, and improves the installation, debugging and maintenance efficiency.

(2) The rotary transformer and the limiting collision block are coaxially installed, only one time of installation is needed, the coaxiality error is consistent, and the angle error of the rotary transformer and the angle error of the limiting collision block are consistent.

(3) The integrated structure mode is suitable for different rotary transformers and has good universality.

(4) The installation is simple, the debugging method is general, and the method is suitable for azimuth/pitching type parabolic antennas with various calibers.

(5) The sealing box body can be quickly installed and detached by using simple tools such as a screwdriver and the like.

(6) The angle sensors are respectively arranged on the azimuth shaft and the pitching shaft of the large-caliber parabolic antenna, so that the azimuth and pitching angle changes of the antenna can be detected in real time, the pointing angle of the antenna is correctly indicated, and real-time pointing drive and satellite tracking of the antenna are realized.

(7) The utility model is suitable for all azimuth/elevation parabolic antennas with the caliber of more than 7.3 meters.

Drawings

FIG. 1 is a schematic diagram of a conventional limiting type large-aperture antenna structure and an installation position of an angle sensor;

FIG. 2 is a schematic diagram of an existing full-motion large-aperture antenna structure and an installation position of an angle sensor;

FIG. 3 is a structural outline view of the device of the present invention;

FIG. 4 is a perspective view of the device of the present invention;

FIG. 5 is a front view of the apparatus of the present invention;

FIG. 6 is a top view of the apparatus of the present invention;

FIG. 7 is a perspective view of the spindle of the apparatus of the present invention;

FIG. 8 is a perspective view of a coupling member of the apparatus of the present invention;

fig. 9 is a three-dimensional structure diagram of a limit bump of the device of the utility model.

Detailed Description

In order to make the utility model more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

The integrated angle sensing device for the large-caliber parabolic antenna integrates the rotary change block and the limiting collision block into a sealed box body, can use simple tools such as a screwdriver and the like on an installation site, and is quick to install, disassemble, debug and maintain, so that a compact structural device is provided. The air-permeable valve specifically comprises an air-permeable valve 17, a sealing cover 18, a base 19, a control interface 20, a connecting shaft part 21, a main shaft 22, four limit switches 23, a rotary transformer 24 and four limit collision blocks 25.

The profile of the present invention is shown in fig. 3. Wherein the breather valve 17 is positioned at the top of the device, which can avoid the generation of condensed water inside the device. The sealing cover 18 and the base 19 form a sealing box body, the sealing cover 18 is made of stainless steel materials, and the sealing cover and the base 19 are connected and fastened through rubber waterproof rings and screws. The control interface 20 is a cover pad made of stainless steel material to protect the aviation socket mounted on the base 19. The connecting shaft part 21 is made of stainless steel, and the corrugated pipe and the elastic joint cutting flange are used for fastening the shaft hole, so that the integrated angle sensor device is tightly connected with the azimuth shafts or the pitching shafts of the antennas with different diameters.

Fig. 4 is a three-dimensional structure view of the integrated angle sensor device of the present invention, which can visually reflect the details of the internal structure of the integrated angle sensor device. Wherein, the rotary transformer 24 is a mechanical rotary transformer or a digital photoelectric encoder, the former outputs analog voltage and needs an analysis circuit to form an indication angle; the latter outputs an angle code value indicative of the angle. The rotary transformer 24, the four limit collision blocks 25 and the connecting shaft piece 21 are fixed on the main shaft 22 from top to bottom.

Fig. 5 is a front view structural view of the integrated angle sensor device of the present invention, which can visually reflect the internal connection relationship. The main shaft 22 is taken as a core, and four limit collision blocks 25, a rotary transformer 24 and a connecting shaft piece 21 are coaxially installed and connected in a fixing mode that the main shaft 22 is screwed by screws.

Fig. 6 is a top view structural diagram of the integrated angle sensor device of the present invention, which can visually reflect the position distribution of a plurality of limit bumps 25 and limit switches 23 inside, wherein the limit bumps 25 and the limit switches 23 should be on the same horizontal plane, and at the limit position, the limit bumps 25 can press the limit switches 23 to trigger the limit indication. When leaving the current limit position, the limit bump 25 can release the limit switch 23. 4 groups of limiting collision blocks 25 and limiting switches 23 are arranged, so that the function of limiting at 4 positions can be realized. One angle sensing device can set 4 limit positions, including an azimuth left initial limit, a left final limit, a right initial limit and a right final limit, or a pitching upper initial limit, an upper final limit, a lower initial limit and a lower final limit.

Fig. 7 is a perspective view of the main shaft 22 of the device of the present invention, wherein the cylindrical portion is used for mounting the connecting shaft 21, the four grooves 26 are provided with the position limiting collision blocks 25, and the square column head portion with screw holes is provided with the rotary transformer 24.

Fig. 8 is a perspective view of the coupling member 21 of the apparatus of the present invention. One end of the connecting shaft member 21 is connected to the main shaft 22, and the other end is connected to the antenna azimuth axis or the antenna elevation axis.

Fig. 9 is a perspective view of the stopper 25 of the present invention. Wherein the ring portion is sleeved in the groove 26 of the main shaft 22 and fixed by a set screw. The collision block on the other side touches the limit switch 23 at the limit position, and triggers and generates a limit indication signal by jacking the moving part of the limit switch 23.

The angle sensing device can be arranged on a limiting type and a full-moving type large-caliber parabolic antenna, and particularly is arranged on an antenna azimuth axis and an antenna pitching axis of the large-caliber parabolic antenna through a connecting shaft part 21. When the antenna is arranged on an antenna azimuth axis, only one azimuth angle sensor needs to be arranged on one antenna to indicate the azimuth angle of the antenna. The antenna is arranged on the pitching axis, and only one pitching angle sensor is required to be arranged on one antenna to indicate the pitching angle of the antenna. The angle sensing device provides an indication of the antenna orientation and the pitch angle, which combine to form the antenna pointing angle.

The installation process of the utility model is as follows:

(1) the shaft connecting member 21 is properly fastened to the antenna azimuth axis or the antenna elevation axis.

(2) The seal cover 18 is opened, the integrated angle sensor device main shaft 22 is tightly connected to the coupling 21, and the concentricity of the main shaft 22 and the antenna azimuth axis or the antenna pitch axis is carefully checked at the time of mounting.

(3) And opening the stainless steel cover pad of the control interface 20, connecting the wired aviation plug to the aviation socket, and debugging the rotary transformer 24 to a normal angle for output.

(4) Taking the azimuth adjustment of the azimuth integrated angle sensor device as an example, the antenna is rotated to an azimuth left pre-limit angle, the limit collision block 25 at the topmost end is adjusted to press against the limit switch 23 to generate an azimuth pre-limit indication level, and the set screw of the limit collision block 25 is tightened to complete the azimuth left pre-limit setting.

By parity of reasoning, the adjustment of the azimuth left final limit, the azimuth right initial limit and the azimuth right final limit is completed in sequence.

(5) Waterproof glue is coated on the welding point of the rotary transformer 24, a rubber waterproof ring is sleeved on the base 19 and the sealing cover 18, and the rubber waterproof ring is fastened by screws.

(6) After the installation and debugging work is finished, the control interface 20 is additionally arranged, and waterproof glue is coated outside, so that rainwater and the like are effectively prevented from permeating into the aviation plug.

The utility model uses a connecting shaft part 21 to connect with the transmission mechanism of the azimuth axis or the elevation axis of the antenna, and simultaneously debugs a rotary transformer 24 and a limit bump 25 at one position. A set of integrated angle sensing device is respectively installed in the azimuth and the pitching of a pair of large-caliber parabolic antennas, so that the azimuth and pitching angle indication and the position limitation of 4 angles in azimuth and pitching can be realized. The integrated design improves the integration level of the angle sensor, can improve the field debugging and maintenance efficiency of the large-caliber parabolic antenna, and can improve the reliability of the angle sensor under the outdoor working environment by being arranged in the same sealing cover.

Claims

1. An integral type angle sensing device for heavy-calibre parabolic antenna which characterized in that: comprises a sealed box body, a main shaft (22), a rotary transformer (24), four limit collision blocks (25) and four limit switches (23), the sealed box body is provided with a ventilation component, one end of the main shaft (22) is connected with the antenna azimuth axis or the antenna pitching axis, the other end passes through the sealed box body and is positioned in the sealed box body, it bumps piece (25) and four spacing to collide to overlap in proper order from last and lies in the sealed box body on main shaft (22) to become (24) soon and four spacing, and it bumps piece (25) to be connected with the aviation socket in the sealed box body through angle induction cable and spacing indication cable respectively with spacing, and four limit switch (23) are established and are collided piece (25) one-to-one with four spacing in the sealed box body, adjust spacing and collide piece (25) and press limit switch (23) that the top corresponds and accomplish position or pitch angle limit position and set for, and then provide antenna position and pitch angle and instruct.

2. An integral angle sensing device for a large aperture parabolic antenna as claimed in claim 1, wherein: the main shaft (22) is connected with the antenna azimuth axis or the antenna elevation axis through a connecting shaft piece (21).

3. An integral angle sensing device for a large aperture parabolic antenna as claimed in claim 1, wherein: the limiting collision block (25) is sleeved on the main shaft (22) through a positioning piece, the limiting collision block (25) is adjusted to press the corresponding limiting switch (23) and fix the positioning piece, and the setting of the limiting position of the corresponding azimuth angle or the pitch angle is completed.

4. An integral angle sensing device for a large aperture parabolic antenna as claimed in claim 1, wherein: the main shaft (22) is provided with four grooves (26) provided with limit collision blocks (25) along the circumferential direction.

5. An integral angle sensing device for a large aperture parabolic antenna as claimed in claim 1, wherein: the sealed box body includes base (19) and sealed cowling (18), the aviation socket is established on base (19), sealed cowling (18) cover is on base (19), ventilative subassembly is established on sealed cowling (18).

6. An integral angle sensing device for a large aperture parabolic antenna as claimed in claim 1, wherein: and the sealed box body is provided with a control interface (20) for protecting the aviation socket.

7. An integral angle sensing device for a large aperture parabolic antenna as claimed in claim 1, wherein: the rotary transformer (24) is a mechanical rotary transformer or a digital photoelectric encoder.

8. An integral angle sensing device for a large aperture parabolic antenna as claimed in claim 1 or 5, characterized in that: the ventilation component is a ventilation valve (17), and the ventilation valve (17) is arranged at the top of the sealed box body.

9. An integral angle sensing device for a large aperture parabolic antenna as claimed in claim 2, characterized in that: one end of the main shaft (22) is a cylindrical end and is used for connecting the connecting shaft piece (21), and the other end of the main shaft is a square column head with a screw hole and is used for installing the rotary transformer (24).