Two-dimensional direct-drive tracking mechanism based on quantum communication
Technical Field
The invention relates to the technical field of tracking mechanisms, in particular to a two-dimensional direct-drive tracking mechanism based on quantum communication.
Background
The traditional quantum communication ground signal transmitting and receiving station has the advantages of complex structure, large volume, weight larger than 1 ton, high transportation cost, inconvenient operation and low working efficiency.
Disclosure of Invention
The invention aims to provide a two-dimensional direct-drive tracking mechanism based on quantum communication, which solves the problems in the prior art, remarkably reduces the size and weight of a quantum communication ground station, and improves the maneuverability and the working efficiency.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a two-dimensional direct-drive tracking mechanism based on quantum communication, which comprises a position mechanism, a support frame, a pitching mechanism and a control unit, wherein the lower end of the support frame is connected with the position mechanism, the upper end of the support frame is connected with the pitching mechanism, the pitching mechanism is connected with an astronomical lens cone, the position mechanism and the pitching mechanism are respectively and electrically connected with the control unit, the position mechanism can drive the support frame to rotate in a horizontal plane, and the pitching mechanism can drive the astronomical lens cone to rotate in a vertical plane.
Preferably, the support frame is L-shaped, the interior of the support frame is hollow, the azimuth mechanism is arranged on a cross arm of the support frame, the pitching mechanism is arranged at the top end of a vertical arm, and the astronomical lens cone is located above the cross arm.
Preferably, the azimuth mechanism or the pitching mechanism all includes frame, driving motor, pivot, bearing assembly and angle measurement subassembly, be provided with driving motor in the frame the bearing assembly with the angle measurement subassembly, the both ends of pivot are provided with one respectively the bearing assembly, driving motor's stator seat with the frame is connected, the rotor seat with the pivot is connected, the lower extreme of pivot is provided with the angle measurement subassembly, the both ends of pivot with be provided with between the frame the bearing assembly.
Preferably, the rotating shaft is a hollow shaft, a stepped shaft hole is formed in the hollow shaft, and the top of the hollow shaft of the azimuth mechanism is connected with a tool connecting piece for detection through a bolt.
Preferably, the lower extreme of frame passes through bearing bracket and one bearing assembly passes through bolted connection, upper port and another bearing assembly's bearing frame passes through bolted connection, there is the bottom plate bottom of frame through bolted connection, the lower extreme of frame is provided with the cable fixed plate, be provided with the wiring on the lateral wall of frame and navigate and insert.
Preferably, the angle measuring assembly comprises an angle encoder, a stator of the angle encoder is connected with the bearing support through a bolt, a rotor of the angle encoder is connected with the rotating shaft through a bolt, and the driving motor and the angle encoder are electrically connected with the control unit.
Preferably, the bearing assembly comprises a bearing end cover, angular contact ball bearings, a spacer ring and a bearing seat, one or two angular contact ball bearings are arranged between the bearing end cover and the bearing seat, an inner spacer ring and an outer spacer ring are arranged between the two angular contact ball bearings, and the bearing seat is in threaded connection with the rotating shaft through a locking sleeve or a bolt.
Preferably, a corner limiting mechanism is arranged between the base of the azimuth mechanism and the support frame, the corner limiting mechanism comprises a stop pin, a V-shaped block, a pin shaft, a magnet, a light blocking sheet and a photoelectric sensor, the stop pin is arranged on the support frame, the V-shaped block is arranged on the side wall of the base through the pin shaft in a rotating mode, the stop pin can be in contact with the side wall of the V-shaped block, the magnet and the light blocking sheet are arranged on the two side walls of the V-shaped block respectively, the photoelectric sensor is arranged on the base and located below the V-shaped block, the magnet can be adsorbed on the step surface of the base in the rotating process and enables the light blocking sheet to trigger the photoelectric sensor, and the photoelectric sensor is electrically connected with the control unit.
Preferably, a pitch angle limiting mechanism is arranged between a rotating shaft of the pitch mechanism and the support frame, the pitch angle limiting mechanism comprises a mechanical limiting mechanism and a photoelectric limiting mechanism which are arranged at two ends of the rotating shaft, the mechanical limiting mechanism comprises a spring plunger and a rotating block, two spring plungers with set central angles are fixedly arranged on a bearing seat of the bearing assembly, the rotating block is connected with the rotating shaft, the rotating block and the spring plungers are positioned in the same plane, and the rotating block can trigger the spring plungers; the photoelectric limiting mechanism comprises a fan-shaped blocking piece and photoelectric sensors, the fan-shaped blocking piece is connected with the rotating shaft, the two photoelectric sensors are arranged on the base of the pitching mechanism in a 180-degree central angle mode, the fan-shaped blocking piece can trigger the photoelectric sensors, and the set central angle is 180 degrees-the central angle of the fan-shaped blocking piece.
Preferably, when the pitching mechanism rotates, the range of the rotation angle of the pitching angle limiting mechanism is-5 degrees to +95 degrees; when the azimuth mechanism rotates, the rotation angle range of the rotation angle limiting mechanism is-360 degrees- +360 degrees.
Compared with the prior art, the invention has the following technical effects:
the two-dimensional direct-drive tracking mechanism based on quantum communication can construct a small portable signal transmitting and receiving station, is small in size, light in weight, convenient to transport and simple to operate, and the weight of the whole machine is less than 100Kg, so that the cost is greatly reduced, and the maneuverability and the working efficiency are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a first structural schematic diagram of a two-dimensional direct-drive tracking mechanism based on quantum communication according to the present invention;
FIG. 2 is a schematic structural diagram II of a two-dimensional direct-drive tracking mechanism based on quantum communication in the invention;
FIG. 3 is a schematic structural view of a support frame and a pitching mechanism according to the present invention;
FIG. 4 is a schematic view of the structure of the orientation mechanism of the present invention;
FIG. 5 is a first schematic structural view of a bearing assembly of the present invention;
FIG. 6 is a second schematic structural view of a bearing assembly of the present invention;
FIG. 7 is a schematic view of a connection structure of a driving motor according to the present invention;
FIG. 8 is a schematic structural view of a corner limiting mechanism according to the present invention;
FIG. 9 is a schematic structural view of a mechanical stop mechanism according to the present invention;
FIG. 10 is a schematic structural view of the photoelectric limiting mechanism according to the present invention;
wherein: 1-azimuth mechanism, 2-support frame, 3-astronomical lens cone, 4-pitch mechanism, 5-stepped shaft hole, 6-corner limiting mechanism, 7-mechanical limiting mechanism, 8-photoelectric limiting mechanism, 9-bearing bracket, 10-hollow shaft, 11-angle measuring component, 12-wiring aviation plug, 13-cable fixing plate, 14-bottom plate, 15-machine base, 16-bearing end cover, 17-angular contact ball bearing, 18-outer spacing ring, 19-inner spacing ring, 20-bearing seat, 21-locking sleeve, 22-stator seat, 23-driving motor, 24-rotor seat, 25-gasket, 30-photoelectric sensor, 31-sector baffle, 32-spring plunger, 33-rotating block, 34-baffle pin, 35-V-shaped block, 36-pin shaft, 37-magnet and 38-light barrier.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a two-dimensional direct-drive tracking mechanism based on quantum communication, which solves the problems in the prior art, remarkably reduces the size and weight of a quantum communication ground station, and improves the maneuverability and the working efficiency.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 10: this embodiment provides a two-dimentional direct drive tracking mechanism based on quantum communication, including position mechanism 1, support frame 2, every single move mechanism 4 and the control unit, the lower extreme of support frame 2 is connected with position mechanism 1, the upper end is connected with every single move mechanism 4, every single move mechanism 4 connects astronomical lens cone 3, position mechanism 1 and every single move mechanism 4 are connected with the control unit electricity respectively, position mechanism 1 can drive support frame 2 at the horizontal rotation, every single move mechanism 4 can drive astronomical lens cone 3 at vertical in-plane rotation. The support frame 2 is L-shaped and is arranged in a hollow manner, the azimuth mechanism 1 is arranged on a cross arm (positioned below the L-shaped) of the support frame 2, the pitching mechanism 4 is arranged at the top end of a vertical arm, and the astronomical lens cone 3 is positioned above the cross arm.
The azimuth mechanism 1 or the pitching mechanism 4 comprises a base 15, a driving motor 23, a rotating shaft, a bearing assembly and an angle measuring assembly 11, wherein the driving motor 23, the bearing assembly and the angle measuring assembly 11 are arranged in the base 15, the two ends of the rotating shaft are respectively provided with the bearing assembly, a stator seat 22 of the driving motor 23 is connected with the base 15, a rotor seat 24 is connected with the rotating shaft, the lower end of the rotating shaft is provided with the angle measuring assembly 11, and the bearing assembly is arranged between the two ends of the rotating shaft and the base 15.
The rotating shaft is a hollow shaft 10, a stepped shaft hole 5 is arranged in the hollow shaft 10, and the top of the hollow shaft 10 of the azimuth mechanism 1 is connected with a tool connecting piece for detection through a bolt. The lower end of the machine base 15 is connected with one bearing assembly through a bearing support 9 through a bolt, the upper port of the machine base is connected with a bearing seat of the other bearing assembly through a bolt, and the bottom of the machine base 15 is connected with a bottom plate 14 through a bolt. The lower end of a base 15 of the azimuth mechanism 1 is provided with a cable fixing plate 13, and the side wall of the base 15 is provided with a wiring aviation plug 12.
The angle measurement assembly 11 comprises an angle encoder, a stator of the angle encoder is connected with the bearing support 9 through a bolt, a rotor of the angle encoder is connected with a rotating shaft through a bolt, the driving motor 23 and the angle encoder are electrically connected with the control unit, closed-loop control is carried out, speed and position information under the current state are fed back, and the horizontal rotation angle of the astronomical lens cone 3 is conveniently controlled in real time.
The bearing assembly comprises a bearing end cover 16, angular contact ball bearings 17, a spacer ring and a bearing seat 20, wherein one or two angular contact ball bearings 17 are arranged between the bearing end cover 16 and the bearing seat 20, an inner spacer ring 19 and an outer spacer ring 18 are arranged between the two angular contact ball bearings 17, the lower end of the bearing seat 20 is in threaded connection with a locking sleeve 21, and the bearing seat 20 is in threaded connection with the rotating shaft through the locking sleeve 21 or a bolt. Wherein the bearing assembly at the lower end of the machine base 15 of the azimuth mechanism 1 comprises two angular contact ball bearings 17.
A corner limiting mechanism 6 is arranged between the base 15 of the azimuth mechanism 1 and the support frame 2, the corner limiting mechanism 6 comprises a stop pin 34, a V-shaped block 35, a pin shaft 36, a magnet 37 (strong magnet), a light blocking sheet 38 and a photoelectric sensor 30, the stop pin 34 is arranged on the support frame 2, the V-shaped block 35 is rotatably arranged on the side wall of the base 15 through the pin shaft 36, the stop pin 34 can be in contact with the side wall of the V-shaped block 35, the two side walls of the V-shaped block 35 are respectively provided with the magnet 37 and the light blocking sheet 38, the photoelectric sensor 30 is arranged on the base 15 and is positioned below the V-shaped block 35, the magnet 37 can be adsorbed on the step surface of the base 15 in the rotating process and enables the light blocking sheet 38 to trigger the photoelectric sensor 30, and the photoelectric sensor 30 is electrically connected with the control unit. When the azimuth mechanism 1 rotates, the rotation angle range of the rotation angle limiting mechanism 6 is-360 degrees- +360 degrees, when the stop pin 34 rotates to a critical angle of-360 degrees or +360 degrees along with the support frame 2, the stop pin abuts against the side wall of the V-shaped block 35, the photoelectric sensor 30 is triggered, and then the control unit controls the motor to stop rotating and changes the rotation direction once.
A pitch angle limiting mechanism is arranged between a rotating shaft of the pitch mechanism 4 and the support frame 2, the pitch angle limiting mechanism comprises a mechanical limiting mechanism 7 and a photoelectric limiting mechanism 8 which are arranged at two ends of the rotating shaft, the mechanical limiting mechanism 7 comprises a spring plunger 32 and a rotating block 33, two spring plungers 32 with set central angles are fixedly arranged on a bearing seat 20 of the bearing assembly, the rotating block 33 is connected with the hollow shaft 10, the rotating block 33 and the spring plungers 32 are positioned in the same plane, and the rotating block 33 can trigger the spring plungers 32; the photoelectric limiting mechanism 8 comprises a fan-shaped blocking piece 31 and photoelectric sensors 30, the fan-shaped blocking piece 31 is connected with the hollow shaft 10, the two photoelectric sensors 30 are arranged on the base 15 of the pitching mechanism 4 at a central angle of 180 degrees, the fan-shaped blocking piece 31 can trigger the photoelectric sensors 30, and the central angle is set to be 180 degrees-the central angle of the fan-shaped blocking piece 31. When the pitching mechanism 4 rotates, the range of the rotation angle of the pitching angle limiting mechanism is-5 degrees- +95 degrees. When the astronomical lens cone 3 rotates to a critical angle of-5 degrees or +95 degrees, the rotating block 33 is abutted to one of the spring plungers 32, meanwhile, the fan-shaped blocking piece 31 triggers one of the photoelectric sensors 30, the motor is controlled by the control unit to stop rotating, the spring plunger 32 is compressed, energy is absorbed, and mechanical vibration is reduced, so that the stable rotation limiting effect and the dual guarantee of mechanical limiting and photoelectric limiting are achieved.
The working principle of the two-dimensional direct-drive tracking mechanism based on quantum communication in the embodiment is that in an initial state, the astronomical lens cone 3 (load component) is in a horizontal zero state, the driving motor 23 in the azimuth mechanism 1 drives the stepped shaft hole 5 to rotate forwards and backwards for one circle, and the rotation range is +/-360 degrees. The driving motor 23 in the pitching mechanism 4 drives the pitching rotating shaft to move back and forth, the rotating range is-5 degrees to +95 degrees, the attitude position in the astronomical lens cone 3 (load component) is determined by calculating the space position of the ink number satellite through the computer, and therefore the real-time tracking is realized by controlling the azimuth mechanism 1 and the pitching mechanism 4 through the computer according to the movement track of the ink number. The mechanism of the embodiment obviously reduces the size and the weight of the ground station on the premise of realizing quantum communication sky-ground signal butt joint.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.