WO2019153757A1 - Dispositif d'entraînement d'antenne - Google Patents

Dispositif d'entraînement d'antenne Download PDF

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Publication number
WO2019153757A1
WO2019153757A1 PCT/CN2018/107610 CN2018107610W WO2019153757A1 WO 2019153757 A1 WO2019153757 A1 WO 2019153757A1 CN 2018107610 W CN2018107610 W CN 2018107610W WO 2019153757 A1 WO2019153757 A1 WO 2019153757A1
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WO
WIPO (PCT)
Prior art keywords
gear
assembly
driving
planetary gear
output
Prior art date
Application number
PCT/CN2018/107610
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English (en)
Chinese (zh)
Inventor
桑建斌
刘鹏
蔡立绍
李永忠
Original Assignee
罗森伯格技术（昆山）有限公司
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Application filed by 罗森伯格技术（昆山）有限公司 filed Critical 罗森伯格技术（昆山）有限公司
Publication of WO2019153757A1 publication Critical patent/WO2019153757A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole

Definitions

  • the present invention relates to the field of mobile communication antennas, and more particularly to an antenna transmission device for adjusting a downtilt angle of a multi-frequency antenna in a base station antenna.
  • the radiating surface of the mobile communication antenna is adjusted according to the change of the radiating element of the antenna, specifically, the phase shifter in the antenna is driven by the transmission device, thereby adjusting the electronically adjustable antenna, and the electronically controlled means automatically adjusts the tilting angle of the antenna and changes The phase, horizontal component, vertical component amplitude and other parameters of the antenna are used to change the coverage area.
  • the ESC antenna is operated by the control unit and the mechanical transmission device to realize the transmission control of the antenna downtilt angle.
  • the transmission mode of the multi-frequency antenna is a simple superposition of the single-frequency antenna, that is, one motor separately controls one phase shifter, and for the multi-frequency antenna, separate adjustment of multiple phase shifters is realized. It is necessary to configure a plurality of motors. Due to the high price and heavy weight of the motor, not only the antenna is bulky, but also the cost is increased, and the structure is complicated, the production is difficult, and the cost is high.
  • An object of the present invention is to overcome the deficiencies of the prior art and to provide an antenna transmission device which is simple in structure and can realize a motor to control a plurality of phase shifters.
  • an antenna transmission device including: a driving shaft, a transposition component, a selection gear, and at least one output gear, wherein
  • the transposition assembly is disposed on the driving shaft, and is unidirectionally rotatable in a first direction under driving of the driving shaft, and is selected to be associated with any one of the output gears to realize a revolutionary selection position;
  • the selection gear is an outer ring gear, which is disposed on the driving shaft and is interlocked with the indexing component, and can be unidirectionally rotated in the first direction under the driving of the driving shaft to drive the transposition component to rotate. It can drive the output gear in conjunction with the transposition component to output the forward or reverse bidirectional output.
  • the transposition assembly includes a transposition gear set including a driving gear, a driven gear, a first planetary gear and a second planetary gear, the driving gear being disposed on the driving shaft, first The planetary gear directly meshes with the driving gear, and the second planetary gear meshes with the driving gear through the driven gear, and the driving gear drives the first planetary gear and the second planetary gear to rotate in opposite directions by the driving of the driving shaft.
  • a transposition gear set including a driving gear, a driven gear, a first planetary gear and a second planetary gear, the driving gear being disposed on the driving shaft, first The planetary gear directly meshes with the driving gear, and the second planetary gear meshes with the driving gear through the driven gear, and the driving gear drives the first planetary gear and the second planetary gear to rotate in opposite directions by the driving of the driving shaft.
  • the selection gear meshes with the second planetary gear to establish linkage with the indexing assembly.
  • the transposition assembly further includes a gear chamber assembly, the transposition gear set is housed in the gear chamber assembly, the gear chamber assembly includes a gear carrier and a gear chamber, and the gear chamber is formed therein for receiving
  • the accommodating chambers of the gears of the indexing gear set are mounted on the gear carrier at one end and mounted on the gear cavity at the other end, and are received in the accommodating cavity.
  • the apparatus further includes a first one-way mechanism mounted to the gear chamber assembly for controlling the gear chamber assembly to drive the indexing assembly to rotate unidirectionally in the first direction.
  • the apparatus further includes a second one-way mechanism mounted on the position gear for controlling the one-way rotation of the position gear in the first direction.
  • any one of the first planetary gear and the second planetary gear meshes with the selected output gear.
  • a line connecting the center of the first planetary gear to the center of the driving gear and an angle between the center of the second planetary gear and the center of the driving gear is at an angle greater than 120 degrees and less than 180 degrees.
  • the line connecting the center of the first planetary gear and the center of the driving gear is at an angle of 150 degrees with the line connecting the center of the second planetary gear and the center of the driving gear.
  • the device further comprises a front cover and a rear cover that are engaged with each other, and an accommodation space is formed between the front cover and the rear cover, the drive shaft, the transposition assembly, the selection gear, and a part of the output gear Each is housed in the accommodation space.
  • the apparatus further includes a planetary gear position recognition assembly for identifying a first planetary gear and/or a second planetary gear position, the planetary gear position identification assembly including a magnetic element disposed on the gear carrier, disposed in front a magnetic component identification area on the cover and a magnetic element sensing area disposed on the back cover corresponding to the position of the magnetic component identification area, wherein the magnetic element sensing area corresponds to a rotational position sensor, and the magnetic element rotates with the gear carrier Upon the magnetic component identification zone, the magnetic component establishes an identification with the rotational position sensor corresponding to the magnetic component sensing zone to identify the position of the first planetary gear and/or the second planetary gear.
  • the planetary gear position recognition assembly for identifying a first planetary gear and/or a second planetary gear position
  • the planetary gear position identification assembly including a magnetic element disposed on the gear carrier, disposed in front a magnetic component identification area on the cover and a magnetic element sensing area disposed on the back cover corresponding to the position of the magnetic component identification
  • the front cover is provided with a fifth recess
  • the magnetic element extends into the fifth recess and the rotation track is in the fifth recess
  • the front cover is provided with a through cover and a notch in which the fifth groove communicates, the notch being a magnetic element identification area.
  • the antenna structure of the invention has simple control and is controlled by a motor drive switching, thereby realizing control of the bidirectional output of the plurality of phase shifters, thereby adjusting the downtilt angle of the antenna, low cost, high integration, convenient assembly and replacement, and suitable for industrial scale. .
  • Figure 1 is a schematic view of the exploded structure of the present invention
  • FIGS. 2 and 3 are schematic structural views of different viewing angles after assembly of the present invention.
  • Figure 4 is a schematic exploded view of the transposition assembly of the present invention.
  • Figure 5 is a schematic structural view of the indexing gear set and the selection gear of the present invention.
  • Figure 6 is a schematic structural view of a gear chamber of the present invention.
  • Figure 7 is a schematic structural view of a gear carrier of the present invention.
  • Figure 8 is a schematic view showing the cooperation structure of the front cover and the second one-way mechanism of the present invention.
  • Figure 9 is a schematic view showing the cooperation structure of the back cover and the first one-way mechanism of the present invention.
  • Figure 10 is a schematic cross-sectional view showing the structure of the apparatus of the present invention.
  • Active shaft 101, limit boss, 102, first mounting portion, 103, second mounting portion, 20, transposition assembly, 21, gear chamber assembly, 211, gear carrier, 212, gear chamber, 213, First fixing hole, 214, second fixing hole 215, receiving cavity, 216, hollow portion, 217, first one-way mounting portion, 218, first protrusion, 219, magnetic component mounting portion, 22, indexing gear Group, 221, drive gear, 222, driven gear, 223, first planetary gear, 224, second planetary gear, 30, position gear, 31, second one-way mounting portion, 32, third protrusion, 40 Output gear, 41, support plate, 50, first one-way mechanism, 51, first groove, 52, second protrusion, 60, second one-way mechanism, 61, third groove, 62, fourth Groove, 70, front cover, 71, second one-way receiving cavity, 72, fourth protrusion, 80, rear cover, 81, first one-way receiving cavity, 82, second groove, 83, fifth concave Slot, 91, magnetic element, 91
  • an antenna transmission device disclosed in the present invention includes a driving shaft 10, a transposition assembly 20, a selection gear 30, at least one output gear 40, a first one-way mechanism 50, and a second single.
  • the front cover 70 and the rear cover 80, the front cover 70 and the rear cover 80 are fastened to each other, and a space is formed between the two after the fastening, except that the output gear 40 partially protrudes from the space, and other components are disposed. Within the space.
  • the driving shaft 10 is driven by an external driving unit (not shown), and the transposition unit 20 can be revolved in a certain direction under the driving of the driving shaft 10, and meshed with different output gears 40 to realize the selection;
  • the gear 30 is rotatable in this direction under the drive of the drive shaft 10 to drive the transposition assembly 20 to rotate output, and the transposition assembly 20 can bi-directionally drive the output gear 40.
  • the driving shaft 10 has a cylindrical shape as a whole, and the driving shaft 10 is provided with a finite boss 101.
  • the limiting boss 101 divides the driving shaft 10 into two upper and lower portions, respectively A mounting portion 102 and a second mounting portion 103.
  • the indexing assembly 20 includes a gear chamber assembly 21 and a shifting gear set 22 housed in the gear chamber assembly 21.
  • the indexing gear set 22 includes a driving gear 221 and a driven gear. a gear 222, a first planetary gear 223 and a second planetary gear 224, wherein the driving gear 221 is mounted on the first mounting portion 102 of the driving shaft 10, and the first planetary gear 223 is disposed outside the driving gear 221 and directly coupled to the driving gear
  • the second planetary gear 224 is meshed with the driving gear 221 by the driven gear 222, and the driven gear 222 is provided with an odd number.
  • one of the driven gears 222 is provided, so that when the driving gear 221 rotates, the first The direction of rotation of the planet gears 223 and the second planet gears 224 are reversed to achieve a forward or reverse bidirectional output of the output gear 40.
  • the gear chamber assembly 21 is also mounted on the first mounting portion 102 of the drive shaft 10 and is limited to the limit boss 101.
  • the drive shaft 10 can be unidirectionally rotated in the first direction by the drive shaft 10.
  • the gear chamber assembly 21 specifically includes a gear carrier 211 and a gear chamber 212. wherein, as shown in FIG. 7, the gear carrier 211 is provided with a plurality of first fixings.
  • the hole 213 is configured to fix the bottom end of the central axis of each gear of the indexing gear set 22; as shown in FIG. 6, the gear cavity 212 is also provided with a plurality of positions corresponding to the positions of the first fixing holes 213 on the gear carrier 211.
  • the second fixing hole 214 is for fixing the top end of the central shaft of each gear of the indexing gear set 22, and the housing cavity 215 for accommodating the gears of the indexing gear set 22 is formed in the gear chamber 212.
  • one end of each gear of the indexing gear set 22 is fixed to the gear carrier 211, and the other end is fixed to the gear cavity 212, and is accommodated in the receiving cavity 215.
  • the gear carrier 211 and the gear cavity 212 may be connected by bolt but not limited.
  • the gear cavity 212 is formed with a hollow portion 216 for exposing the first planetary gear 223 and the second planetary gear 224 to the outside of the receiving cavity 215, and the first planetary gear 223 is exposed.
  • the first planetary gear 223 is located inside the output gear 40, and the two meshes to establish linkage; the second planetary gear 224 is exposed The upper end is configured to be engageable with the selected output gear 40.
  • the second planetary gear 224 When engaged with the selected output gear 40, the second planetary gear 224 is located outside of the output gear 40, and the two meshes to establish linkage; the lower end is used to make it selectable When the position gear 30 is engaged, the lower end of the second planetary gear 224 is located outside the meshing gear of the position gear 30, and the two meshes to establish linkage.
  • the first one-way mechanism 50 is mounted on the gear chamber 212 and received in the rear cover 80 for controlling the gear chamber assembly 21 to be unidirectionally rotatable only in the first direction under the driving of the driving shaft 10.
  • the first unidirectional mounting portion 217 is formed on the top end of the gear cavity 212 , and the first unidirectional mechanism 50 is fixed on the first unidirectional mounting portion 217 .
  • the first unidirectional mechanism 50 and the first unidirectional mounting portion 217 may be fixedly coupled to each other by, but not limited to, a protrusion and a groove.
  • the outer surface of the first unidirectional mounting portion 217 is formed with an outwardly convex first protrusion 218, and the inner surface of the first one-way mechanism 50 is correspondingly formed with a first recess 51 recessed inwardly.
  • the first one-way mechanism 50 realizes the engagement with the first one-way mounting portion 217 by the fitting structure of the first protrusion 218 snapping into the first groove 51.
  • a first unidirectional receiving cavity 81 for accommodating the first unidirectional mechanism 50 is formed in the rear cover 80.
  • the first unidirectional mechanism 50 can also be fixed by, but not limited to, a structure in which the protrusion and the groove are matched. It is into the first one-way receiving chamber 81.
  • a second recess 52 is formed on the outer surface of the first unidirectional mechanism 50, and a second recess 82 is formed on the inner surface of the first unidirectional receiving cavity 81.
  • a one-way mechanism 50 is snap-fitted into the first one-way receiving cavity 81 by a mating structure in which the second protrusion 82 is engaged with the second groove 52.
  • the position gear 30 is mounted on the second mounting portion 103 of the drive shaft and is unidirectionally rotatable in the first direction by the drive of the drive shaft 10.
  • the position gear 30 is an outer ring gear, which is located inside the second planetary gear 224 and meshes with the lower end of the second planetary gear 224.
  • the first gear rotates in the first direction
  • the second planetary gear 224 is driven. Rotating in a second direction opposite the first direction.
  • the second one-way mechanism 60 is mounted on the positioning gear 30 and housed in the front cover 70 for controlling the selection gear 30 to perform one-way rotation. Specifically, as shown in FIG. 1 , FIG. 5 and FIG. 8 , the bottom end of the positioning gear 30 extends outward from the central axis thereof to form a second one-way mounting portion 31 , and the second one-way mechanism 60 is mounted on the first end. Two unidirectional mounting portions 31. Similar to the installation principle of the first unidirectional structure 50 described above, in the embodiment, the second unidirectional mechanism 60 and the second unidirectional mounting portion 31 can be installed by, but not limited to, a structure in which the protrusion and the groove are matched.
  • a third protrusion 32 is formed on the outer surface of the second unidirectional mounting portion 31, and a corresponding third groove 61 is formed on the inner surface of the second unidirectional mechanism 60.
  • the mechanism 60 is snapped onto the second one-way mounting portion 31 by the structure in which the third projection 32 is snapped into the third recess 61.
  • a second unidirectional receiving cavity 71 for accommodating the second unidirectional mechanism 60 is formed in the front cover 70.
  • the second unidirectional mechanism 60 can also be fixed by, but not limited to, a structure in which the protrusion and the groove are matched. It is into the second one-way receiving chamber 71.
  • a fourth recess 62 is formed on the outer surface of the second unidirectional mechanism 60, and a fourth recess 72 is formed on the inner surface of the second unidirectional receiving cavity 71.
  • the two-way mechanism 60 is snap-fitted into the second one-way receiving cavity 71 by the engaging structure of the fourth protrusion 72 engaging the fourth groove 62.
  • the output gear 40 is used for connecting a phase shifting device (not shown) of the antenna, and the lower end thereof is engaged with the first planetary gear 223 or the second planetary gear 224, and the upper end thereof is extended to extend the back cover.
  • the phase shifting device of the antenna is used to rotate the output under the driving of the first planetary gear 223 or the second planetary gear 224, and the downtilt angle of the phase shifting device of the antenna can be adjusted in the forward or reverse direction.
  • six output gears 40 are disposed on a support plate 41, and the six output gears 40 are uniformly distributed circumferentially on the support plate 41.
  • the number of output gears 40 is not limited to the embodiment. Six.
  • the antenna actuator of the present invention further includes a planetary gear position identification assembly for identifying the position of the first planetary gear 223 and/or the second planetary gear 224 when the indexing assembly 20 is in position.
  • the planetary gear position recognition component includes a magnetic component 91, a magnetic component identification area 92, and a magnetic component sensing area (not shown), wherein the magnetic component 91 is disposed on On the gear carrier 211, specifically, the bottom end of the gear carrier 211 extends outwardly from the edge to a magnetic component mounting portion 219, and the magnetic component 91 is mounted at the end of the magnetic component mounting portion 219; as shown in FIG.
  • the front cover 70 The inner corresponding magnetic component mounting portion 219 is provided with an annular fifth recess 83 into which the magnetic component mounting portion 219 extends and the rotational trajectory is located in the fifth recess 83.
  • the magnetic component identification area 92 is disposed in the fifth recess 83.
  • the magnetic component identification area 92 is a notch disposed in the fifth recess 83 and extending through the front cover 70.
  • the magnetic element sensing area is disposed on the back cover 80 at a position corresponding to the position of the notch on the front cover 70, and the magnetic element sensing area corresponds to a position sensor (not shown).
  • the magnetic member 91 When the magnetic member 91 is rotated to the notch, the magnetic member 91 recognizes the rotational position sensor (non-contact) chip corresponding to the magnetic element sensing region, thereby identifying the position of the first planetary gear 223 and/or the second planetary gear 224.
  • the line connecting the center of the first planetary gear 223 and the center of the driving gear 221 is greater than 120 degrees and less than the line connecting the center of the second planetary gear 224 and the center of the driving gear 221.
  • the angle of 180 degrees in the present embodiment, is preferably an angle of 150 degrees.
  • the second planetary gears 224 are located between the two output gears 40 of the corresponding 150-degree direction of the output gear 40; the second planetary gears 224 are the same, that is, if When the two planetary gears 224 are meshed with the output gear 40, the first planetary gears 223 are located between the two output gears 40 of the corresponding 150-degree direction of the output gear 40.
  • the working principle of the present invention is: when the driving shaft 10 is rotated in the first direction under the driving of the driving unit, at this time, the positioning gear 30 does not move, and the gear chamber assembly 21 rotates synchronously with the driving shaft 10 in the first direction, the gear chamber The assembly 21 drives the index gear set 22 stored therein to be revolved along the selector gear 30, and selects any one of the output gears 40 to mesh with the first planetary gear 223 or the second planetary gear 224 of the index gear set 22, establish connection.
  • the driving shaft 10 rotates in the second direction, at this time, the gear chamber assembly 21 does not move, the positioning gear 30 rotates in the first direction, and the driving shaft 10 drives the indexing gear set 22 to rotate and output.
  • the driving gear 221 takes the initiative.
  • the shaft 10 rotates in the second direction, the driving gear 221 directly meshes with the first planetary gear 223 and drives the first planetary gear 223 to rotate in the first direction, and the driving gear 221 also directly meshes with the driven gear 222 to drive the driven gear 222.
  • the driven gear 222 directly meshes with the second planetary gear 224 and drives the second planetary gear 224 to rotate in the second direction.
  • the first and second planetary gears 223, 224 are output in both forward and reverse directions.
  • an antenna including the above-mentioned antenna transmission device, and an output gear 40 of the antenna transmission device is connected with a phase shifting unit (not shown), and is driven and switched by a motor. Adjusting the selection position, driving the rotational output of the output gear 40 to adjust the downtilt angle of the antenna.
  • the antenna transmission as a whole may be completely disposed within the radome, or may be partially disposed within the radome, or even completely disposed outside the radome.
  • the antenna structure of the invention has simple control and is controlled by a motor drive switching, thereby realizing control of the bidirectional output of the plurality of phase shifters, thereby adjusting the downtilt angle of the antenna, low cost, high integration, convenient assembly and replacement, and suitable for industrial scale. .

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Abstract

L'invention concerne un dispositif d'entraînement d'antenne, comportant: un arbre d'entrée d'entraînement, un ensemble de changement de position, un engrenage de sélection de position, et au moins un engrenage de sortie. L'ensemble de changement de position est disposé sur l'arbre d'entrée d'entraînement, tourne de façon unidirectionnelle dans un premier sens lorsqu'il est entraîné par l'arbre d'entrée d'entraînement, et sélectionne un engrenage de sortie pour établir une liaison et réaliser conjointement une rotation et une sélection de position. L'engrenage de sélection de position est un engrenage à couronne extérieure disposé sur l'arbre d'entrée d'entraînement et lié à l'ensemble de changement de position. L'engrenage de sélection de position tourne de façon unidirectionnelle dans le premier sens lorsqu'il est entraîné par l'arbre d'entrée d'entraînement, entraîne en rotation l'ensemble de changement de position, et est capable d'entraîner l'engrenage de sortie lié à l'ensemble de changement de position pour donner une sortie dans un sens avant ou dans un sens arrière. La présente invention est dotée d'une structure facile à commander et commande des sorties bidirectionnelles de déphaseurs multiples au moyen d'un seul moteur, ce qui se traduit par de faibles coûts, un haut niveau d'intégration, des opérations commodes d'assemblage et de remplacement, et facilite la production en grande série.
PCT/CN2018/107610 2018-02-08 2018-09-26 Dispositif d'entraînement d'antenne WO2019153757A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810129350.6 2018-02-08
CN201810129350.6A CN108180259A (zh) 2018-02-08 2018-02-08 一种天线传动装置

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WO2019153757A1 true WO2019153757A1 (fr) 2019-08-15

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CN106785451A (zh) * 2017-01-26 2017-05-31 京信通信系统（中国）有限公司 天线及其下倾角控制装置
CN206947537U (zh) * 2017-08-01 2018-01-30 罗森伯格技术（昆山）有限公司 一种天线传动装置及多频天线
CN108180259A (zh) * 2018-02-08 2018-06-19 罗森伯格技术（昆山）有限公司 一种天线传动装置

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