CN109683026B - Multi-degree-of-freedom antenna test platform and method thereof - Google Patents
Multi-degree-of-freedom antenna test platform and method thereof Download PDFInfo
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- CN109683026B CN109683026B CN201811641449.0A CN201811641449A CN109683026B CN 109683026 B CN109683026 B CN 109683026B CN 201811641449 A CN201811641449 A CN 201811641449A CN 109683026 B CN109683026 B CN 109683026B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
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- 238000006243 chemical reaction Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
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Abstract
The invention discloses a multi-degree-of-freedom antenna test platform, which comprises an equipment base, wherein a horizontal rotating table seat is arranged on the equipment base, and a horizontal bracket is fixedly arranged on a rotating platform of the horizontal rotating table seat; the left bearing seat and the right bearing seat are respectively integrally arranged at the two ends of the upper side of the horizontal bracket; the invention has simple structure, adopts a threaded transmission structure for translational adjustment, is accurate in positioning, adopts a disc brake disc holding mode, ensures that the elevation angle of the antenna to be measured cannot deflect in the translational position adjustment process, and further increases the adjustment reliability; in addition, in the scheme, the elevation angle adjustment and the translation adjustment share one rotary servo motor, so that the structure is simplified, and the cost of the high-precision servo motor is saved.
Description
Technical Field
The invention belongs to the field of satellite antenna testing, and particularly relates to a multi-degree-of-freedom antenna testing platform and a multi-degree-of-freedom antenna testing method.
Background
The test platform of the satellite antenna is required to be provided with a function of carrying out azimuth adjustment, elevation angle adjustment and translational position adjustment on the posture of the antenna to be tested; the existing test platform is often complicated in structure, more in unstable factors and particularly not high in translational adjustment accuracy; moreover, the conventional satellite antenna test platform needs to realize the precise adjustment of the three-degree-of-freedom gestures, and at least three high-precision servo motors are needed to complete the precise adjustment.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides the antenna test platform with multiple degrees of freedom and the method thereof, which have the advantages of simple structure and accurate adjustment.
The technical scheme is as follows: in order to achieve the above purpose, the multi-degree-of-freedom antenna test platform of the invention comprises an equipment base, wherein a horizontal turntable seat is arranged on the equipment base, and a horizontal bracket is fixedly arranged on a rotating platform of the horizontal turntable seat; the left bearing seat and the right bearing seat are respectively integrally arranged at the two ends of the upper side of the horizontal bracket;
the outer walls of the two ends of the outer rotating shaft are respectively and rotatably connected with the left bearing seat and the right bearing seat through a first bearing and a second bearing; a columnar hollow slideway is arranged inside the outer rotating shaft in a penetrating way along the axis, a columnar sliding block is arranged in the hollow slideway in a sliding way along the axis, and the sliding block can slide along the axis direction along the hollow slideway;
a straight line groove is hollowed out in the axis direction on the shaft wall of the outer rotating shaft, two ends of the straight line groove are positioned between the left bearing seat and the right bearing seat, and the straight line groove communicates the outside with the hollow slideway;
the outer side of the outer rotating shaft also comprises an antenna test platform which is parallel to the axis of the hollow slideway; a disc-shaped antenna mounting flange seat is arranged on one side surface of the antenna test platform, and a plurality of flange thread mounting holes are formed in the antenna mounting flange seat; the antenna to be tested can be fixedly arranged on the antenna mounting flange seat through the flange;
a connecting pile is arranged in the linear groove in a sliding manner, the connecting pile can slide along the length direction of the linear groove, one end of the connecting pile is fixedly connected with the sliding block, and the other end of the connecting pile is fixedly connected with one side, deviating from the antenna mounting flange seat, of the antenna testing platform; the antenna test platform moves synchronously with the sliding block through the connecting piles.
Further, an inner rotating shaft is arranged in the hollow slideway in a coaxial manner, and two ends of the inner rotating shaft are respectively connected with the inner walls of two ends of the hollow slideway in a rotating manner through a third bearing and a fourth bearing; threads are arranged on the outer wall of the inner rotating shaft; the sliding block is coaxially provided with a threaded hole, the inner rotating shaft penetrates through the threaded hole, and the outer wall of the inner rotating shaft is provided with threads which are in threaded transmission connection with the threaded hole; the rotation of the inner rotating shaft can drive the sliding block to move back and forth along the hollow slideway.
Further, a motor support is fixedly arranged on the left side of the left bearing seat, and a rotating motor is arranged on the motor support; the right end part of the output rotating shaft of the rotating motor is coaxially provided with a first sleeve shaft hole with a regular hexagonal shaft section; the left end part of the inner rotating shaft is coaxially provided with a second sleeve shaft hole with a regular hexagon shaft section, a spline gear is coaxially arranged in a hollow slideway between the output rotating shaft and the inner rotating shaft, a circle of spline teeth are distributed on the axial wall body of the spline gear in a circumferential array, the left end and the right end of the spline gear are coaxially and integrally connected with a left transmission shaft and a right transmission shaft respectively, the shaft sections of the left transmission shaft and the right transmission shaft are regular hexagons, and the left transmission shaft and the right transmission shaft are respectively in sliding fit with the first sleeve shaft hole and the second sleeve shaft hole along the axial line; the left transmission shaft is inserted into the first sleeve shaft hole in a coaxial sliding manner; the right transmission shaft is inserted into the second sleeve shaft hole in a sliding manner in a coaxial way; a circle of spline grooves distributed in a circumferential array are formed in the inner wall of the left end of the hollow slideway; spline teeth on the circumference of the spline gear can move leftwards along an axis to engage with the spline grooves;
a linkage rod channel is further arranged in the inner rotating shaft along the axis, the left end of the linkage rod channel is coaxially communicated with the second sleeve shaft hole, and the right end of the linkage rod channel penetrates out from the right end of the inner rotating shaft; the left end of the linkage rod is fixedly connected with the right end of the right transmission shaft;
a linear push rod motor seat is fixedly arranged on the right side of the right bearing seat; the right bearing seat is fixedly provided with a linear push rod motor, and the tail end of a linear push rod of the linear push rod motor is rotationally connected with the right end of the linkage rod through a fifth bearing; the linear push-pull rod drives the spline gear to move left and right along the axis through the linkage rod; the right end outline of the outer rotating shaft is integrally connected with a disc brake disc in a coaxial way, a disc brake caliper is fixedly arranged on the left side of the linear push rod motor seat, and the disc brake caliper is matched with the disc brake disc; the disc brake calipers can clamp and hold the disc brake disc tightly.
Further, in the attitude adjusting method of the antenna test platform with multiple degrees of freedom, a satellite antenna to be tested is fixedly installed on an antenna installation flange seat through a flange;
and (3) azimuth adjustment of the antenna to be tested: controlling a disc brake caliper to clamp and hold the disc brake disc tightly, so that the outer rotating shaft cannot rotate along the axis, and suspending the rotating motor; then driving the rotary platform to horizontally rotate by a preset angle, so as to realize the azimuth adjustment of the tested satellite antenna;
elevation angle adjustment of the antenna to be tested: the linear push rod motor is driven, so that the linear push rod pushes the linkage rod leftwards, the linkage rod drives the spline gear to displace leftwards along the axis, the spline gear is further displaced leftwards to engage with the spline groove, and the outer rotating shaft and the inner rotating shaft are in a synchronous state; at the moment, the disc brake caliper is controlled to loosen the disc brake disc, and then the rotating motor is driven, so that a combined structure formed by the outer rotating shaft and the inner rotating shaft deflects a certain angle synchronously along the axis, the antenna test platform deflects synchronously along the axis of the outer rotating shaft, and the elevation angle of the antenna to be tested is adjusted;
translational adjustment of the horizontal position of the antenna to be measured: the linear push rod motor is driven, so that the linear push rod pulls the linkage rod rightwards, the linkage rod drives the spline gear to displace rightwards along the axis, the spline gear is further displaced rightwards until the spline gear is separated from the spline groove, the outer rotating shaft and the inner rotating shaft are in a non-linkage state, and at the moment, the disc brake caliper is controlled to clamp and hold the disc brake disc tightly, so that the outer rotating shaft cannot rotate along the axis; then, starting a rotating motor, further driving the inner rotating shaft to rotate by the output rotating shaft through the right transmission shaft, and driving the sliding block to make back and forth displacement along the hollow slideway by the rotation of the inner rotating shaft, so that the antenna test platform makes synchronous translation along with the sliding block through the connecting pile; and further realizing the translational adjustment of the horizontal position of the antenna to be measured.
The beneficial effects are that: the invention has simple structure, adopts a threaded transmission structure for translational adjustment, is accurate in positioning, adopts a disc brake disc holding mode, ensures that the elevation angle of the antenna to be measured cannot deflect in the translational position adjustment process, and further increases the adjustment reliability; in addition, the elevation angle adjustment and the translation adjustment share one rotation servo motor, so that only two high-precision servo motors are needed in the whole scheme, the linear push rod motor structure increased in the scheme does not directly participate in the gesture and position adjustment of the antenna, but only one transmission conversion mechanism, and therefore the precision of the linear push rod motor in the scheme has no influence on the antenna test precision, and therefore, the linear push rod motor with low precision can be selected, the cost is effectively saved, and the cost of the high-precision servo motor is saved.
Drawings
FIG. 1 is a first schematic diagram of the overall structure of the present embodiment;
FIG. 2 is a second schematic diagram of the overall structure of the present embodiment;
FIG. 3 is a schematic diagram of the front cross-section of the transmission part of the present embodiment;
FIG. 4 is an enlarged fragmentary schematic view at 32 of FIG. 3;
FIG. 5 is an enlarged schematic view of a portion of FIG. 3 at 33;
FIG. 6 is a schematic view of the internal structure of the transmission part in the present embodiment in a three-dimensional cutaway;
fig. 7 is a schematic illustration of the spline gear of fig. 6 with the spline gear removed.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The structure of this scheme introduces: the antenna test platform with multiple degrees of freedom as shown in fig. 1 to 7 comprises an equipment base 13, wherein a horizontal turntable seat 15 is arranged on the equipment base 13, and a horizontal bracket 16 is fixedly arranged on a rotating platform 14 of the horizontal turntable seat 15; the two ends of the upper side of the horizontal bracket 16 are respectively provided with a left bearing seat 2 and a right bearing seat 6 in an integrated manner; the rotary stage 14 of the present solution is driven by a high precision servomotor.
The device also comprises a horizontal outer rotating shaft 3, wherein the outer walls of the two ends of the outer rotating shaft 3 are respectively and rotatably connected with the left bearing seat 2 and the right bearing seat 6 through a first bearing 17 and a second bearing 36; a columnar hollow slideway 24 is arranged inside the outer rotating shaft 3 along the axis in a penetrating way, a columnar sliding block 35 is arranged in the hollow slideway 24 in a sliding way along the axis, and the sliding block 35 can slide along the hollow slideway 24 along the axis direction;
a linear groove 19 is hollowed out in the axial direction on the shaft wall of the outer rotating shaft 3, two ends of the linear groove 19 are positioned between the left bearing seat 2 and the right bearing seat 6, and the linear groove 19 communicates the outside with the hollow slideway 24;
the outer side of the outer rotating shaft 3 also comprises an antenna test platform 4 which is parallel to the axis of the hollow slideway 24; a disc-shaped antenna mounting flange seat 31 is arranged on one side surface of the antenna test platform 4, and a plurality of flange thread mounting holes 30 are formed in the antenna mounting flange seat 31; the antenna to be tested can be fixedly arranged on the antenna mounting flange seat 31 through a flange;
the connecting pile 5 is slidably arranged in the linear groove 19, the connecting pile 5 can slide along the length direction of the linear groove 19, one end of the connecting pile 5 is fixedly connected with the sliding block 35, and the other end of the connecting pile 5 is fixedly connected with one side of the antenna test platform 4, which is away from the antenna mounting flange seat 31; the antenna test platform 4 moves synchronously with the slider 35 through the connecting piles 5.
An inner rotating shaft 29 is further arranged in the hollow slideway 24 in a coaxial manner, and two ends of the inner rotating shaft 29 are respectively connected with inner walls at two ends of the hollow slideway 24 in a rotating manner through a third bearing 26 and a fourth bearing 38; threads are arranged on the outer wall of the inner rotating shaft 29; the sliding block 35 is coaxially provided with a threaded hole 35.1, the inner rotating shaft 29 penetrates through the threaded hole 35.1, and the outer wall of the inner rotating shaft 29 is provided with threads in threaded transmission connection with the threaded hole 35.1; the rotation of the inner shaft 29 drives the slider 35 to move back and forth along the hollow slide 24.
A motor support 12 is fixedly arranged on the left side of the left bearing seat 2, and a rotary motor 1 is arranged on the motor support 12, wherein the rotary motor 1 in the scheme is a high-precision servo motor; the right end part of the output rotating shaft 18 of the rotating motor 1 is coaxially provided with a first sleeve shaft hole 23 with a regular hexagonal shaft section; the left end part of the inner rotating shaft 29 is coaxially provided with a second sleeve shaft hole 39 with a regular hexagon shaft section, a spline gear 21 is coaxially arranged in a hollow slideway 24 between the output rotating shaft 18 and the inner rotating shaft 29, a circle of spline teeth are distributed on the axial wall body of the spline gear 21 in a circumferential array, the left end and the right end of the spline gear 21 are coaxially and integrally connected with a left transmission shaft 22 and a right transmission shaft 25 respectively, the shaft sections of the left transmission shaft 22 and the right transmission shaft 25 are regular hexagons, and the left transmission shaft 22 and the right transmission shaft 25 are respectively in sliding fit with the first sleeve shaft hole 23 and the second sleeve shaft hole 39 along the axial line; the left transmission shaft 22 is inserted into the first sleeve shaft hole 23 in a sliding manner coaxially; the right transmission shaft 25 is coaxially inserted into the second sleeve hole 39 in a sliding manner; a circle of spline grooves 20 distributed in a circumferential array are formed in the inner wall of the left end of the hollow slideway 24; spline teeth on the circumference of the spline gear 21 can be displaced leftward along the axis to engage the spline grooves 20;
a linkage rod channel 28 is further arranged in the inner rotating shaft 29 along the axis, the left end of the linkage rod channel 28 is coaxially communicated with the second sleeve shaft hole 39, and the right end of the linkage rod channel 28 penetrates out from the right end of the inner rotating shaft 29; a linkage rod 27 is movably penetrated through the linkage rod channel 28 in a coaxial way, and the left end of the linkage rod 27 is fixedly connected with the right end of the right transmission shaft 25;
a linear push rod motor seat 9 is fixedly arranged on the right side of the right bearing seat 6; a linear push rod motor 8 is fixedly arranged on the right bearing seat 6, and the tail end of a linear push rod 11 of the linear push rod motor 8 is rotationally connected with the right end of the linkage rod 27 through a fifth bearing 37; the linear push-pull rod 11 drives the spline gear 21 to move left and right along the axis through a linkage rod 27; the right end outline of the outer rotating shaft 3 is integrally and coaxially connected with a disc brake disc 7, a disc brake caliper 10 is fixedly arranged on the left side of the linear push rod motor seat 9, and the disc brake caliper 10 is matched with the disc brake disc 7; the disc brake caliper 10 can clamp and hold the disc brake disc 7.
The method process and the technical progress of the scheme are as follows:
firstly, a satellite antenna to be tested is fixedly arranged on the antenna mounting flange seat 31 through a flange;
and (3) azimuth adjustment of the antenna to be tested:
the disc brake caliper 10 is controlled to clamp and hold the disc brake disc 7, so that the outer rotating shaft 3 cannot rotate along the axis, and the motor 1 is stopped rotating; then the rotating platform 14 is driven to horizontally rotate by a preset angle, so that the azimuth adjustment of the tested satellite antenna is realized;
elevation angle adjustment of the antenna to be tested:
the linear push rod motor 8 is driven, so that the linear push rod 11 pushes the linkage rod 27 leftwards, the linkage rod 27 drives the spline gear 21 to move leftwards along the axis, the spline gear 21 is further moved leftwards to the engaged spline groove 20, if the linkage rod 27 is not pushed leftwards smoothly, the movement interference is indicated, the spline gear 21 can be moved leftwards smoothly to the engaged spline groove 20 by slightly driving the spline gear 21 to deflect a certain angle through the rotating motor 1, and the outer rotating shaft 3 and the inner rotating shaft 29 are in a synchronous state; at the moment, the disc brake caliper 10 is controlled to loosen the disc brake disc 7, and then the rotating motor 1 is driven, so that a combined structure formed by the outer rotating shaft 3 and the inner rotating shaft 29 is synchronously deflected along the axis for a certain angle, the antenna test platform 4 is synchronously deflected along the axis of the outer rotating shaft 3, and the elevation angle of the antenna to be tested is further adjusted;
translational adjustment of the horizontal position of the antenna to be measured:
the linear push rod motor 8 is driven, so that the linear push rod 11 pulls the linkage rod 27 rightwards, the linkage rod 27 drives the spline gear 21 to move rightwards along the axis, the spline gear 21 is rightwards moved to be separated from the spline groove 20, the outer rotating shaft 3 and the inner rotating shaft 29 are in a separated and non-linkage state, and the disc brake caliper 10 is controlled to clamp and hold the disc brake disc 7 at the moment, so that the outer rotating shaft 3 cannot rotate along the axis; then the rotary motor 1 is started, the output rotary shaft 18 independently drives the inner rotary shaft 29 to rotate through the right transmission shaft 25, the rotation of the inner rotary shaft 29 drives the sliding block 35 to move back and forth along the hollow slideway 24, and the antenna test platform 4 synchronously translates along with the sliding block 35 through the connecting pile 5; and further realizing the translational adjustment of the horizontal position of the antenna to be measured.
In summary, the invention has simple structure, accurate positioning by adopting a thread transmission structure for translational adjustment, and ensures that the elevation angle of the antenna to be measured cannot deflect in the translational position adjustment process by adopting a disc brake disc holding mode, thereby further improving the adjustment reliability; in addition, the elevation angle adjustment and the translation adjustment share one rotation servo motor, so that only two high-precision servo motors are needed in the whole scheme, the linear push rod motor structure increased in the scheme does not directly participate in the gesture and position adjustment of the antenna, but only one transmission conversion mechanism, and therefore the precision of the linear push rod motor in the scheme has no influence on the antenna test precision, and therefore, the linear push rod motor with low precision can be selected, the cost is effectively saved, and the cost of the high-precision servo motor is saved.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (3)
1. A multi-degree-of-freedom antenna test platform is characterized in that: the device comprises a device base (13), wherein a horizontal rotating table seat (15) is arranged on the device base (13), and a horizontal bracket (16) is fixedly arranged on a rotating platform (14) of the horizontal rotating table seat (15); the two ends of the upper side of the horizontal bracket (16) are respectively and integrally provided with a left bearing seat (2) and a right bearing seat (6);
the device also comprises a horizontal outer rotating shaft (3), wherein the outer walls of the two ends of the outer rotating shaft (3) are respectively and rotatably connected with the left bearing seat (2) and the right bearing seat (6) through a first bearing (17) and a second bearing (36); a columnar hollow slideway (24) is arranged inside the outer rotating shaft (3) along the axis in a penetrating way, a columnar sliding block (35) is arranged in the hollow slideway (24) in a sliding way in a coaxial way, and the sliding block (35) can slide along the axis direction along the hollow slideway (24);
a linear groove (19) is hollowed out in the axial direction on the shaft wall of the outer rotating shaft (3), two ends of the linear groove (19) are positioned between the left bearing seat (2) and the right bearing seat (6), and the linear groove (19) is used for communicating the outside with the hollow slideway (24);
the outer side of the outer rotating shaft (3) further comprises an antenna test platform (4) parallel to the axis of the hollow slideway (24); a disc-shaped antenna mounting flange seat (31) is arranged on one side surface of the antenna test platform (4), and a plurality of flange thread mounting holes (30) are formed in the antenna mounting flange seat (31); the antenna to be tested can be fixedly arranged on the antenna mounting flange seat (31) through the flange;
the antenna test device is characterized in that a connecting pile (5) is arranged in the linear groove (19) in a sliding manner, the connecting pile (5) can slide along the length direction of the linear groove (19), one end of the connecting pile (5) is fixedly connected with the sliding block (35), and the other end of the connecting pile (5) is fixedly connected with one side, deviating from the antenna mounting flange seat (31), of the antenna test platform (4); the antenna test platform (4) synchronously moves along with the sliding block (35) through the connecting pile (5);
an inner rotating shaft (29) is further arranged in the hollow slide way (24) coaxially, and two ends of the inner rotating shaft (29) are respectively connected with inner walls at two ends of the hollow slide way (24) in a rotating way through a third bearing (26) and a fourth bearing (38); threads are arranged on the outer wall of the inner rotating shaft (29); a threaded hole (35.1) is formed in the sliding block (35) in a coaxial mode, the inner rotating shaft (29) penetrates through the threaded hole (35.1), and threads are arranged on the outer wall of the inner rotating shaft (29) and are in threaded transmission connection with the threaded hole (35.1); the rotation of the inner rotating shaft (29) can drive the sliding block (35) to move back and forth along the hollow slideway (24).
2. The multiple degree of freedom antenna test platform of claim 1 wherein: a motor support (12) is fixedly arranged on the left side of the left bearing seat (2), and a rotary motor (1) is arranged on the motor support (12); the right end part of an output rotating shaft (18) of the rotating motor (1) is coaxially provided with a first sleeve shaft hole (23) with a regular hexagonal shaft section; the left end part of the inner rotating shaft (29) is coaxially provided with a second sleeve shaft hole (39) with a regular hexagon shaft section, a spline gear (21) is coaxially arranged in a hollow slideway (24) between the output rotating shaft (18) and the inner rotating shaft (29), a circle of spline teeth are distributed on the axial wall body of the spline gear (21) in a circumferential array, the left end and the right end of the spline gear (21) are coaxially connected with a left transmission shaft (22) and a right transmission shaft (25) respectively, the shaft sections of the left transmission shaft (22) and the right transmission shaft (25) are regular hexagons, and the left transmission shaft (22) and the right transmission shaft (25) are respectively in sliding fit with the first sleeve shaft hole (23) and the second sleeve shaft hole (39) along the axis; the left transmission shaft (22) is inserted into the first sleeve shaft hole (23) in a sliding manner coaxially; the right transmission shaft (25) is inserted into the second sleeve shaft hole (39) in a sliding manner coaxially; a circle of spline grooves (20) distributed in a circumferential array are formed in the inner wall of the left end of the hollow slideway (24); spline teeth on the circumference of the spline gear (21) can be displaced leftwards along the axis to engage the spline grooves (20);
a linkage rod channel (28) is further arranged in the inner rotating shaft (29) along the axis, the left end of the linkage rod channel (28) is coaxially communicated with the second sleeve shaft hole (39), and the right end of the linkage rod channel (28) penetrates out from the right end of the inner rotating shaft (29); a linkage rod (27) is movably penetrated through the linkage rod channel (28) coaxially, and the left end of the linkage rod (27) is fixedly connected with the right end of the right transmission shaft (25);
a linear push rod motor seat (9) is fixedly arranged on the right side of the right bearing seat (6); a linear push rod motor (8) is fixedly arranged on the right bearing seat (6), and the tail end of a linear push rod (11) of the linear push rod motor (8) is rotationally connected with the right end of the linkage rod (27) through a fifth bearing (37); the linear push-pull rod (11) drives the spline gear (21) to move left and right along the axis through the linkage rod (27); the right end outline of the outer rotating shaft (3) is integrally and coaxially connected with a disc brake disc (7), a disc brake caliper (10) is fixedly arranged on the left side of the linear push rod motor seat (9), and the disc brake caliper (10) is matched with the disc brake disc (7); the disc brake caliper (10) can clamp and hold the disc brake disc (7).
3. The method for adjusting the attitude of a multi-degree-of-freedom antenna test platform according to claim 2, wherein the method comprises the steps of: firstly, a satellite antenna to be tested is fixedly arranged on an antenna mounting flange seat (31) through a flange;
and (3) azimuth adjustment of the antenna to be tested: controlling a disc brake caliper (10) to clamp and hold the disc brake disc (7), so that the outer rotating shaft (3) cannot rotate along the axis, and suspending the rotating motor (1); then driving the rotating platform (14) to horizontally rotate by a preset angle so as to realize the azimuth adjustment of the tested satellite antenna;
elevation angle adjustment of the antenna to be tested: the linear push rod motor (8) is driven, so that the linear push rod (11) pushes the linkage rod (27) leftwards, the linkage rod (27) drives the spline gear (21) to move leftwards along the axis, the spline gear (21) is further moved leftwards to be meshed with the spline groove (20), and the outer rotating shaft (3) and the inner rotating shaft (29) are in a synchronous state; at the moment, a disc brake caliper (10) is controlled to loosen the disc brake disc (7), then the rotating motor (1) is driven, and a combined structure formed by the outer rotating shaft (3) and the inner rotating shaft (29) is synchronously deflected along the axis for a certain angle, so that the antenna test platform (4) is synchronously deflected along the axis of the outer rotating shaft (3), and the elevation angle of the antenna to be tested is further adjusted;
translational adjustment of the horizontal position of the antenna to be measured: the linear push rod motor (8) is driven, so that the linear push rod (11) pulls the linkage rod (27) rightwards, the linkage rod (27) drives the spline gear (21) to move rightwards along the axis, the spline gear (21) is rightwards moved to be separated from the spline groove (20), the outer rotating shaft (3) and the inner rotating shaft (29) are in a non-linkage state, and at the moment, the disc brake caliper (10) is controlled to clamp and hold the disc brake disc (7), so that the outer rotating shaft (3) cannot rotate along the axis; then, the rotating motor (1) is started, the output rotating shaft (18) independently drives the inner rotating shaft (29) to rotate through the right transmission shaft (25), and the rotation of the inner rotating shaft (29) drives the sliding block (35) to move back and forth along the hollow slideway (24), so that the antenna test platform (4) moves synchronously and translationally along with the sliding block (35) through the connecting pile (5); and further realizing the translational adjustment of the horizontal position of the antenna to be measured.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811641449.0A CN109683026B (en) | 2018-12-29 | 2018-12-29 | Multi-degree-of-freedom antenna test platform and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811641449.0A CN109683026B (en) | 2018-12-29 | 2018-12-29 | Multi-degree-of-freedom antenna test platform and method thereof |
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| CN109683026A CN109683026A (en) | 2019-04-26 |
| CN109683026B true CN109683026B (en) | 2024-03-29 |
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| CN208164866U (en) * | 2018-05-11 | 2018-11-30 | 李中强 | Telescopic vehicle extends out platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9502748B2 (en) * | 2014-07-18 | 2016-11-22 | Auden Techno Corp. | Holder for antenna testing |
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| CN102262186A (en) * | 2010-05-28 | 2011-11-30 | 深圳富泰宏精密工业有限公司 | Antenna testing jig |
| CN203909084U (en) * | 2014-06-04 | 2014-10-29 | 耀登科技股份有限公司 | Clamp for antenna test |
| CN104801582A (en) * | 2015-04-29 | 2015-07-29 | 中山市科力高自动化设备有限公司 | Rotary left-right pipe bending machine |
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| CN108254629A (en) * | 2017-12-15 | 2018-07-06 | 北京无线电计量测试研究所 | A kind of antenna efficiency measuring device |
| CN207852890U (en) * | 2017-12-30 | 2018-09-11 | 东莞市松汇实业有限公司 | A kind of vehicle-mounted satellite antenna |
| CN208164866U (en) * | 2018-05-11 | 2018-11-30 | 李中强 | Telescopic vehicle extends out platform |
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| CN109683026A (en) | 2019-04-26 |
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