CN113809876B - High-precision split type radar servo scanner - Google Patents
High-precision split type radar servo scanner Download PDFInfo
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- CN113809876B CN113809876B CN202111253723.9A CN202111253723A CN113809876B CN 113809876 B CN113809876 B CN 113809876B CN 202111253723 A CN202111253723 A CN 202111253723A CN 113809876 B CN113809876 B CN 113809876B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/081—Structural association with bearings specially adapted for worm gear drives
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/24—Structural association with auxiliary mechanical devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Abstract
The invention discloses a high-precision split type radar servo scanner which comprises a driving end, driving units, a driven end and a radar frame, wherein the axes of the driving end and the driven end are coaxial, the radar frame is provided with a closed cavity, two driving units are arranged in the cavity, the two driving units are fixed at one end, close to the driving end, in the cavity through eccentric sleeves, two ends of the radar frame are respectively fixed with rotating shafts of the driving end and the driven end, and the output end of each driving unit is in transmission connection with a first transmission gear. According to the invention, by adjusting the installation angle of the eccentric sleeve, the tooth side clearance in the meshing process of the first transmission gear and the second transmission gear is eliminated, the transmission precision is improved, and by the meshing transmission of the first transmission gear and the second transmission gear of the two driving units, the return error is eliminated, and the scanning precision of the servo scanner is improved.
Description
Technical Field
The invention relates to the technical field of radar servo transmission, in particular to a high-precision split type radar servo scanner.
Background
With the development of radar technology, stringent requirements are continuously put on the performance of radar. For a mechanical scanning radar, a servo scanner is mainly used for driving an antenna array surface of the radar and adjusting the spatial orientation of the antenna array surface, so that high-precision continuous monitoring on a target is realized. In recent years, along with the development of high integration of radar and the diversity of loading platforms, strict limitations are put on the space size and quality of the radar. In radar design, therefore, the structural space, scanning accuracy and quality allocated to the servo scanner are very limited, resulting in a low accuracy of the servo scanner.
The existing document with the Chinese patent publication number of 201310331932.X discloses a runway foreign matter detection radar scanner pitching component, which comprises a right backup plate, a backup plate cover, a servo module, a right angular contact ball bearing, a pitching frame end cover, a left arm, a left angular contact ball bearing, a left backup plate, a backup plate cover, a pitching frame and a right arm. The pitching motor adopts a permanent magnet direct current brushless torque motor, the pitching motor is of a hollow shaft sleeve type, a stator of the pitching motor is installed on a servo frame, a rotor of the pitching motor is installed on a left backup plate, a servo module is installed inside the pitching frame, a rotary transformer sleeved on a rotary variable shaft is used for feeding back a pitching angle, the rotary variable stator is fixed inside the pitching frame through a hoop, and a sleeve and a jackscrew are used for adjusting an axial gap and pretightening force.
But it only adjusts the axial gap, resulting in very limited scanning accuracy and quality, resulting in a lower accuracy of the servo scanner.
Disclosure of Invention
The technical problem to be solved by the invention is how to improve the scanning precision of the servo scanner.
The invention solves the technical problems through the following technical means: a high-precision split radar servo scanner comprises a driving end, a driving unit, a driven end and a radar frame, the axes of the driving end and the driven end are coaxial, the radar frame is provided with a closed cavity, two driving units are arranged in the cavity, the two driving units are fixed at one end close to the driving end in the cavity through eccentric sleeves, two ends of the radar frame are respectively fixed with the rotating shafts of the driving end and the driven end, the output end of the driving unit is connected with a first transmission gear in a transmission way, a second transmission gear matched with the first transmission gears is fixed at one end of the driving end close to the driving units, the first transmission gears of the two driving units are respectively meshed with different tooth surfaces of the second transmission gears, the driving unit drives the first transmission gear to be meshed with the second transmission gear, and drives the radar frame to rotate by taking the axis of the radar frame as a rotating shaft to realize pitching scanning.
The installation angle of the eccentric sleeve is adjusted, so that the tooth side clearance in the meshing process of the first transmission gear and the second transmission gear is eliminated, the transmission precision is improved, the return error is eliminated through the meshing transmission of the first transmission gear and the second transmission gear of the two driving units, and the scanning precision of the servo scanner is improved.
As a preferred technical scheme, the driving end comprises a driving bearing seat, an end fixing piece, a first connecting shaft, an angular contact ball bearing, a second connecting shaft, a sleeve, a potentiometer and a coupler, the first transmission gear is fixed at one end, close to the driving unit, of the driving bearing seat, the second connecting shaft is rotatably connected in the driving bearing seat through the angular contact ball bearing, the sleeve is fixedly connected at one end, close to the driving unit, of the second connecting shaft, the potentiometer is coaxially fixed in the second connecting shaft, the potentiometer is rotatably connected with the first connecting shaft through the coupler, and the driving bearing seat is fixedly connected with the first connecting shaft through the end fixing piece.
Through the coaxial transmission of potentiometer and second connecting axle, real-time measurement turned angle need not the conversion, compares the angle of measurement of potentiometer and drive unit's step motor measuring angle, carries out feedback control to the turned angle of radar frame, forms closed loop control, has improved the rotation precision, installs the potentiometer simultaneously inside the electromagnetic signal that can avoid the during operation to receive the radar transmission of second connecting axle influences, has improved the measurement precision.
According to the preferable technical scheme, the end fixing part comprises a first end cover and a second end cover, a first clamping block is fixedly connected to the center of the first end cover, a second clamping block is fixedly connected to the center of the second end cover, a plurality of first waist holes are formed in the second end cover, a half key groove matched with the second clamping block is formed in the first end cover, the second clamping block penetrates through the half key groove to be fixed with the first end cover, and the first clamping block, the second clamping block and the first connecting shaft are clamped and fixed.
Through rotating the second end cover, make first clamp splice, second clamp splice and first connecting axle press from both sides tightly fixedly, pass first waist hole with the bolt, fix first end cover and second end cover, through the design in half keyway and first waist hole, eliminated driven clearance, improved the angle measurement precision.
According to the preferable technical scheme, the driving unit comprises a servo motor and a planetary reducer, the servo motor and the planetary reducer are fixed with the radar frame through eccentric sleeves, the output end of the planetary reducer is fixedly connected with a first transmission gear, the first transmission gear is meshed with a second transmission gear, and through the arrangement of the servo motor and the planetary reducer, the rotating torque is large, and the energy consumption is low.
As a preferred technical scheme, a plurality of second waist holes are formed in the eccentric sleeve, and the eccentric sleeve is fixed with the radar frame through bolts.
As the preferred technical scheme, the driven end includes driven bearing frame, driven bearing, driven rotating shaft, third end cover, driven rotating shaft passes through driven bearing and rotates to be fixed in driven bearing frame, driven rotating shaft one end is fixed with radar frame one end, the driven bearing frame keep away from the radar frame one end and is fixed with the third end cover.
As a preferable technical scheme, one end of the second connecting shaft penetrating through the angular contact ball bearing is connected with a locking nut in a screwing mode, and the rotation stability of the second connecting shaft is improved through the locking nut.
As an optimized technical scheme, the second transmission gear and the driven bearing seat are fixedly connected with stop blocks, and mechanical limitation on the radar frame is achieved through the stop blocks.
According to the preferable technical scheme, a V-shaped ring is arranged at the joint of the second connecting shaft and the driving bearing seat, and the sealing performance of the driving end and the driven end is improved through the arrangement of the V-shaped ring.
Preferably, the two drive units are arranged symmetrically with respect to the axis of the radar frame.
The invention has the advantages that:
(1) according to the invention, by adjusting the installation angle of the eccentric sleeve, the tooth side clearance in the meshing process of the first transmission gear and the second transmission gear is eliminated, the transmission precision is improved, and by the meshing transmission of the first transmission gear and the second transmission gear of the two driving units, the return error is eliminated, and the scanning precision of the servo scanner is improved.
(2) According to the invention, the potentiometer and the second connecting shaft are coaxially driven to measure the rotating angle in real time, conversion is not needed, the measuring angle of the potentiometer is compared with the angle measured by the stepping motor of the driving unit, feedback adjustment is carried out on the rotating angle of the radar frame, closed-loop control is formed, the rotating precision is improved, and meanwhile, the potentiometer is arranged in the second connecting shaft, so that the influence of electromagnetic signals emitted by a radar during working can be avoided, and the measuring precision is improved.
(3) According to the invention, the first clamping block, the second clamping block and the first connecting shaft are clamped and fixed by rotating the second end cover, the bolt penetrates through the first waist hole to fix the first end cover and the second end cover, the transmission gap is eliminated by the design of the half key groove and the first waist hole, and the angle measurement precision is improved.
Drawings
Fig. 1 is a schematic diagram of an internal structure of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional front view structure diagram of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an isometric structure of a driven end of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an active end of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a side view of an active end of a high-precision split type radar servo scanner according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view taken along line A-A of FIG. 4 of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of the section B-B of FIG. 4 of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an end cover fixing member of a high-precision split type radar servo scanner according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a first end cap of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
FIG. 10 is a schematic side view of a first end cap of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of a second end cap of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
FIG. 12 is a schematic side view of a second end cap of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of a driving unit of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
FIG. 14 is a schematic cross-sectional view of a driven end of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
FIG. 15 is a schematic diagram of an overall structure of a driven end of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
FIG. 16 is a schematic diagram of an elevation view of an eccentric sleeve of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
FIG. 17 is a schematic diagram of an isometric structure of an eccentric sleeve of a high-precision split-type radar servo scanner according to an embodiment of the present invention;
reference numerals: 100. an active end; 101. a second transmission gear; 102. a driving bearing seat; 103. a first end cap; 104. a second end cap; 105. a first connecting shaft; 106. locking the nut; 107. angular contact ball bearings; 108. a first clamping block; 109. a second connecting shaft; 1010. a sleeve; 1011. a potentiometer; 1012. a coupling; 1013. a V-shaped ring; 1014. a second clamp block; 1015. a first waist hole; 1016. a half keyway; 1017. a stopper; 1018. an active support frame; 200. a drive unit; 201. a servo motor; 202. a planetary reducer; 203. a first drive gear; 204. an eccentric sleeve; 300. a driven end; 301. a driven bearing seat; 302. a driven bearing; 303. a driven rotating shaft; 304. a third end cap; 305. a driven support frame; 306. a V-shaped sealing ring; 400. a radar frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2 and 3, a high-precision split radar servo scanner includes: the radar frame comprises a driving end 100, two driving units 200, a driven end 300 and a radar frame 400, wherein the driving end 100, the driven end 300 and the radar frame 400 are coaxial in axis, the radar frame 400 is provided with a closed cavity, the two driving units 200 are located in the closed cavity of the radar frame 400 and are symmetrical about the axis of the radar frame 400, and two ends of the radar frame 400 are respectively fixed with rotating shafts of the driving end 100 and the driven end 300.
Referring to fig. 4, 5, 6, 7, 8, 9, 10, 11, and 12, the driving end 100 includes a second transmission gear 101, a driving bearing seat 102, a first end cap 103, a second end cap 104, a first connecting shaft 105, a lock nut 106, an angular contact ball bearing 107, a first clamping block 108, a second connecting shaft 109, a sleeve 1010, a potentiometer 1011, a coupler 1012, a V-ring 1013, a second clamping block 1014, a first waist hole 1015, a half key groove 1016, a stop block 1017, and a driving support 1018, the driving bearing seat 102 is fixedly connected to a bottom end of the driving support 1018 through a plurality of bolts, the second transmission gear 101 adapted to the first transmission gear 203 is fixed to one end of the driving bearing seat 102 close to the driving unit 200, the stop block 1017 is fixedly connected to the second transmission gear 101, and can limit the second connecting shaft 109, so as to form a mechanical limit for the rotation of the radar frame 400, the size of the first transmission gear 203 is smaller than that of the second transmission gear 101, the center of the first end cover 103 is fixedly connected with a first clamping block 108, the center of the second end cover 104 is fixedly connected with a second clamping block 1014, the second end cover 104 is provided with four first waist holes 1015, the four first waist holes 1015 are distributed along the end surface of the second end cover 104 in an equal angle, the first end cover 103 is provided with a half key groove 1016 matched with the second clamping block 1014, the size of the half key groove 1016 is larger than that of the second clamping block 1014, the second clamping block 1014 passes through the half key groove 1016 and rotates the second end cover 104 to clamp and fix the first clamping block 108 and the second clamping block 1014 with the first connecting shaft 105, through the design of the half key groove 1016 and the first waist holes 1015, the transmission clearance is eliminated, the angle measurement precision is improved, a bolt passes through the first waist hole 1015 to fix the first end cover 103 and the second end cover 104, a second connecting shaft 109 is rotatably connected in the ball bearing seat 102 through an angular contact bearing 107, the outer ring 107 is fixedly connected with the inner wall of the driving shaft seat 102, the inner ring of the angular contact ball bearing 107 is fixedly connected with a second connecting shaft 109, one end of the second connecting shaft 109 penetrating through the angular contact ball bearing 107 is screwed and connected with a locking nut 106, one end of the second connecting shaft 109 close to the driving unit 200 is fixedly connected with a sleeve 1010, a V-shaped ring 1013 is arranged at the joint of the second connecting shaft 109 and the driving bearing 102, the V-shaped ring 1013 is a sealing ring and is fixed at the outer side of the second connecting shaft 109, a potentiometer 1011 is coaxially fixed in the second connecting shaft 109, the potentiometer 1011 is positioned in the area surrounded by the sleeve 1010 and the second connecting shaft 109, the potentiometer 1011 and the second connecting shaft 109 are coaxially driven, the rotation angle can be directly and accurately measured in real time without conversion, meanwhile, the potentiometer 1011 is arranged in the second connecting shaft 109 (a closed metal cavity), the influence of electromagnetic signals emitted by a radar during working can be avoided, the measurement precision is improved, and the angle measured by the potentiometer 1011 and a stepping motor of the driving unit 200 is compared, the rotation angle of the radar frame 400 is adjusted to form closed-loop control, the rotation precision is further improved, the right end of the potentiometer 1011 is rotatably connected with the left end of the coupler 1012, the right end of the coupler 1012 is fixedly connected with the first connecting shaft 105, and one end of the radar frame 400 is fixedly connected with one end of the second connecting shaft 109.
Referring to fig. 1, 2, 3, 13, 16 and 17, the driving unit 200 includes a servo motor 201 and a planetary reducer 202, an output end of the driving unit 200 is disposed at an end of the radar frame 400 close to the driving end 100, the servo motor 201 and the planetary reducer 202 are fixed to the radar frame 400 through an eccentric sleeve 204, the eccentric sleeve 204 is provided with a plurality of second waist holes (not shown), the eccentric sleeve 204 is fixed to the radar frame 400 through bolts, the eccentric sleeve 204 is provided with a mounting hole for the planetary reducer 202 to pass through, the mounting hole is eccentrically disposed, a tooth side gap in a meshing process of the first transmission gear 203 and the second transmission gear 101 is eliminated by adjusting a mounting angle of the eccentric sleeve 204, transmission accuracy is improved, the servo motor 201 is a stepping motor, an output end of the servo motor 201 is in transmission connection with an input end of the planetary reducer 202, an output end of the planetary reducer 202 is in transmission connection with the first transmission gear 203, the output end of the planetary reducer 202 is fixedly connected with the first transmission gear 203, the first transmission gear 203 is meshed with the second transmission gear 101, the first transmission gears 203 of the two driving units 200 are respectively meshed with different tooth surfaces of the second transmission gear 101, the driving units 200 drive the first transmission gears 203 to be meshed with the second transmission gear 101 through the planetary reducer 202 in a speed reduction and torque increase mode, the radar frame 400 is driven to rotate by taking the axis of the radar frame as a rotating shaft to achieve pitching scanning, the torque is improved and the energy consumption is reduced through the arrangement of the servo motor 201 and the planetary reducer 202, it needs to be noted that when one driving unit 200 drives the first transmission gear 203 connected with the driving unit to rotate, the other first transmission gear 203 rotates along with the driving shaft, and the driving end of the driving gear is not started.
Referring to fig. 14 and 15, the driven end 300 includes a driven bearing seat 301, a driven bearing 302, a driven rotating shaft 303, a third end cover 304, a driven support frame 305, and a V-shaped seal ring 306, the driven bearing seat 301 is fixed at the bottom end of the driven support frame 305 through bolts, the driven rotating shaft 303 is fixed in the driven bearing seat 301 through the driven bearing 302, the driven bearing 302 is a deep groove ball bearing, an inner ring of the driven bearing 302 is fixedly connected with the driven rotating shaft 303, an outer ring of the driven bearing 302 is fixedly connected with the driven bearing seat 301, one end of the driven rotating shaft 303 is fixed with one end of the radar frame 400, one end of the driven bearing seat 301 far away from the radar frame 400 is fixed with the third end cover 304, a V-shaped seal ring 306 is arranged at a connection between the driven rotating shaft 303 and the third end cover 304, a wire-passing hole (not shown in the figure) is formed at an axial center of the driven rotating shaft 303, the driven bearing seat 301 is fixedly connected with a stopper 1017, the stopper 1017 can mechanically limit the radar frame 400, the other end of the radar frame 400 is fixedly connected to one end of the driven rotating shaft 303.
It should be noted that the driving support 1018, the driven support 305, the driving bearing seat 102 and the driven bearing seat 301 are preferably made of aluminum alloy 7075, the second connecting shaft 109 and the driven rotating shaft 303 are preferably made of TC4 titanium alloy, the first transmission gear 203 and the second transmission gear 101 are preferably made of 40Cr, and other non-main stressed mechanical parts are preferably made of aluminum alloy 5a06, so that the weight of the split type radar servo scanner is reduced by the arrangement of the two simplified driving units 200.
The working principle is as follows: one driving unit 200 is subjected to speed reduction and torque increase through a planetary reducer 202 to drive a first transmission gear 203 to be meshed with a second transmission gear 101, the second transmission gear 101 of the driving unit 200 is meshed with the first transmission gear 203, the other first transmission gear 203 performs circular motion by using the axis of the second transmission gear 101, return stroke errors are eliminated, a potentiometer 1011 synchronously rotates along with a second connecting shaft 109, the potentiometer 1011 and the second connecting shaft 109 are coaxially driven to measure a rotation angle in real time without conversion, the measurement angle of the potentiometer 1011 is compared with the measurement angle of a stepping motor of the driving unit 200 to perform feedback adjustment on the rotation angle of a radar frame 400, closed loop control is formed to drive the radar frame 400 to rotate by using the axis as a rotating shaft to realize pitch scanning, a second clamping block 1014 penetrates through a half key slot 1016 to rotate a second end cover 104, so that the first clamping block 108 and the second clamping block 1014 are clamped and fixed with the first connecting shaft 105, the bolt penetrates through the first waist hole 1015 to fix the first end cover 103 and the second end cover 104, the transmission clearance is eliminated through the design of the half key groove 1016 and the first waist hole 1015, the angle measurement precision is improved, the tooth side clearance in the meshing process of the first transmission gear 203 and the second transmission gear 101 is eliminated through adjusting the installation angle of the eccentric sleeve 204 and the design of the two driving units 200, and the transmission precision is improved.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a high accuracy split type radar servo scanner, its characterized in that, includes drive end (100), drive unit (200), driven end (300), radar frame (400), drive end (100), driven end (300) axis are coaxial, radar frame (400) have the closed cavity, be equipped with two drive unit (200), two in the cavity drive unit (200) are fixed the one end that is close to drive end (100) in the cavity through eccentric cover (204), radar frame (400) both ends are fixed with the pivot of drive end (100) and driven end (300) respectively, the output transmission of drive unit (200) is connected with first drive gear (203), the one end that drive end (100) are close to drive unit (200) is fixed with second drive gear (101) with first drive gear (203) looks adaptation, two first drive gear (203) of drive unit (200) respectively with the second drive gear (101) not The driving unit (200) drives the first transmission gear (203) to be meshed with the second transmission gear (101) to drive the radar frame (400) to rotate by taking the axis of the radar frame as a rotating shaft to realize pitching scanning;
the driving end (100) comprises a driving bearing seat (102), an end fixing piece, a first connecting shaft (105), an angular contact ball bearing (107), a second connecting shaft (109), a sleeve (1010), a potentiometer (1011) and a coupler (1012), the first transmission gear (203) is fixed at one end of the driving bearing seat (102) close to the driving unit (200), a second connecting shaft (109) is rotatably connected in the driving bearing seat (102) through an angular contact ball bearing (107), one end of the second connecting shaft (109) close to the driving unit (200) is fixedly connected with a sleeve (1010), a potentiometer (1011) is coaxially fixed in the second connecting shaft (109), the potentiometer (1011) is rotatably connected with the first connecting shaft (105) through a coupler (1012), the driving bearing seat (102) is fixedly connected with the first connecting shaft (105) through an end fixing piece.
2. The high-precision split-type radar servo scanner as claimed in claim 1, wherein the end fixing member comprises a first end cover (103) and a second end cover (104), a first clamping block (108) is fixedly connected to the center of the first end cover (103), a second clamping block (1014) is fixedly connected to the center of the second end cover (104), a plurality of first waist holes (1015) are formed in the second end cover (104), a half key groove (1016) matched with the second clamping block (1014) is formed in the first end cover (103), the second clamping block (1014) penetrates through the half key groove (1016) to be fixed to the first end cover (103), and the first clamping block (108) and the second clamping block (1014) are clamped and fixed to the first connecting shaft (105).
3. A high-precision split-type radar servo scanner as claimed in claim 1, wherein the driving unit (200) comprises a servo motor (201) and a planetary reducer (202), the servo motor (201) and the planetary reducer (202) are fixed with the radar frame (400) through an eccentric sleeve (204), the output end of the planetary reducer (202) is fixedly connected with a first transmission gear (203), and the first transmission gear (203) is meshed with a second transmission gear (101).
4. A high precision split radar servo scanner as claimed in claim 3, wherein the eccentric sleeve (204) is provided with a plurality of second waist holes, and the eccentric sleeve (204) is fixed to the radar frame (400) by bolts.
5. A high-precision split-type radar servo scanner as claimed in claim 3, wherein the driven end (300) comprises a driven bearing seat (301), a driven bearing (302), a driven rotating shaft (303) and a third end cover (304), the driven rotating shaft (303) is rotatably fixed in the driven bearing seat (301) through the driven bearing (302), one end of the driven rotating shaft (303) is fixed with one end of the radar frame (400), and the end of the driven bearing seat (301) far away from the radar frame (400) is fixed with the third end cover (304).
6. A high precision split radar servo scanner as in claim 2, wherein the second connecting shaft (109) is screwed with a locking nut (106) through one end of the angular contact ball bearing (107).
7. A high precision split radar servo scanner according to claim 5, wherein the second transmission gear (101) and the driven bearing pedestal (301) are fixedly connected with a stop block (1017).
8. A high precision split radar servo scanner according to claim 5, wherein the junction of the second connecting shaft (109) and the main bearing housing (102) is provided with a V-ring (1013).
9. A high precision split radar servo scanner according to claim 1, wherein the two drive units (200) are arranged symmetrically with respect to the axis of the radar frame (400).
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| NL173647B (en) * | 1951-11-08 | Naphtachimie Sa | PROCESS FOR THE PREPARATION OF CATALYSTS FOR THE POLYMERIZATION OF ALKINES, PROCESS FOR THE PREPARATION OF POLYMERS OR COPOLYMERS, AND FORMED PRODUCTS, MADE BY USING THE POLYMERS OR COPOLYMERS PREPARED AS SO. | |
| CN104806722B (en) * | 2015-04-29 | 2017-03-22 | 东北大学 | Double-pendulum head structure driven by differential double motors |
| US9976646B2 (en) * | 2015-05-28 | 2018-05-22 | Automotive Research & Testing Center | Angle regulation device |
| WO2018176361A1 (en) * | 2017-03-31 | 2018-10-04 | 华为技术有限公司 | Antenna downtilt adjusting apparatus and communications device |
| CN111102347A (en) * | 2018-10-25 | 2020-05-05 | 上海航天智能装备有限公司 | Double-motor-driven back-clearance-free power unit |
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2021
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