WO2019109550A1 - 多频天线传动装置 - Google Patents

多频天线传动装置 Download PDF

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Publication number
WO2019109550A1
WO2019109550A1 PCT/CN2018/080476 CN2018080476W WO2019109550A1 WO 2019109550 A1 WO2019109550 A1 WO 2019109550A1 CN 2018080476 W CN2018080476 W CN 2018080476W WO 2019109550 A1 WO2019109550 A1 WO 2019109550A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
connecting member
screw
frequency antenna
elastic member
Prior art date
Application number
PCT/CN2018/080476
Other languages
English (en)
French (fr)
Inventor
李平
谢伟群
李杰谟
Original Assignee
深圳市兆威机电股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市兆威机电股份有限公司 filed Critical 深圳市兆威机电股份有限公司
Priority to US16/311,912 priority Critical patent/US11367951B2/en
Priority to KR1020187038205A priority patent/KR20200091969A/ko
Priority to EP18821982.8A priority patent/EP3723200B1/en
Publication of WO2019109550A1 publication Critical patent/WO2019109550A1/zh

Links

Classifications

    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
    • F16H37/14—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types the movements of two or more independently-moving members being combined into a single movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • 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
    • 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
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2071—Disconnecting drive source from the actuator, e.g. using clutches for release of drive connection during manual control
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2081—Parallel arrangement of drive motor to screw axis

Definitions

  • the invention belongs to the technical field of transmissions for mobile communication antennas, and more particularly to a multi-frequency antenna transmission device.
  • a large-capacity multi-frequency antenna of an existing product in which a plurality of frequency bands are collectively assembled in one antenna, a regulator of each frequency band is connected to one rack, and a plurality of racks are arranged side by side on a plane, through a common drive.
  • the gear drive rack moves and adjusts. Adjustment of the different racks is achieved when the common gears mesh with different racks at different positions. Since the common gear has to be moved to different rack positions, the position of the gear and the rack has strict requirements. When the common gear of the existing product moves in the position, it is prone to jamming, which affects the timeliness and accuracy of the antenna adjustment. Sex.
  • the object of the present invention is to provide a multi-frequency antenna transmission device, which solves the problem that the position of the gear and the rack is strictly required by the gear and rack adjustment position of the existing multi-frequency antenna, and the common gear is prone to jam when moving. technical problem.
  • the technical solution adopted by the present invention is to provide a multi-frequency antenna transmission device, including:
  • a parallel shaft gear train including a plurality of transmission gears that are driven to rotate by the drive gear
  • each of the screw assemblies including a screw, a connecting member selectively connected or separated from the screw, and a corresponding transmission gear a connected block, and a first elastic member disposed between the connecting member and the stopper;
  • a shifter for pushing one of the stoppers such that the corresponding first elastic member is compressed between the stopper and the corresponding connecting member and the connecting member is coupled to the corresponding screw .
  • the transmission gear is connected with the screw assembly block one by one, and the driving gear drives each transmission gear to rotate, and all the blocks rotate.
  • the shifter pushes the stopper of one of the screw assemblies to compress the first elastic member disposed between the connecting member and the stopper, and the connecting member is coupled to the corresponding screw, and the stopper is powered by the compressed first elastic member,
  • the connecting member is transmitted to the corresponding screw to drive the screw to rotate.
  • the shifter does not push the stopper, the first elastic member will elongate, the stopper will be reset, and the power transmission will be cut off.
  • the screw assembly of the multi-frequency antenna transmission device can be arranged in a plane, the thickness of the structure is thin, and the space of the antenna is more flat, which is more convenient for installation.
  • the screw assembly to be adjusted is determined by the shifter, and a driving force is realized to complete the adjustment of the plurality of screw components, that is, one drag.
  • the first elastic member after compression, the connection between the connecting member and the screw rod is driven and rotated, so that the adjusting action is smoother and the stuttering phenomenon is avoided.
  • FIG. 1 is a front view of a multi-frequency antenna transmission device according to an embodiment of the present invention.
  • Figure 2 is a perspective assembled view of the multi-frequency antenna transmission device of Figure 1;
  • Figure 3 is a perspective assembled view of another angle of the multi-frequency antenna transmission of Figure 2;
  • FIG. 4 is an exploded perspective view of the multi-frequency antenna transmission of FIG. 2.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • the multi-frequency antenna transmission includes a drive gear 10, a parallel shaft gear train 20, a screw assembly 30, and a shifter 40.
  • the parallel shaft gear train 20 includes a plurality of transmission gears 21 that are driven to rotate by the drive gear 10.
  • the screw assembly 30 is disposed in one-to-one correspondence with the transmission gear 21, and each of the screw assemblies 30 includes a screw 31, a connecting member 32 selectively connected or separated from the lead screw 31, and a corresponding transmission gear 21
  • the stopper 33 and the first elastic member 34 disposed between the connecting member 32 and the stopper 33.
  • the shifter 40 is used to push one of the stops 33 such that the corresponding first elastic member 34 is compressedly disposed between the stop 33 and the corresponding connecting member 32 and the connecting member 32 is coupled to the corresponding lead screw 31.
  • the transmission gear 21 is connected in one-to-one correspondence with the stoppers 33 of the screw assembly 30.
  • the drive gear 10 drives the respective transmission gears 21 to rotate, and all the stoppers 33 rotate.
  • the shifter 40 pushes the stopper 33 of one of the screw assemblies 30 to compress the first elastic member 34 disposed between the connecting member 32 and the stopper 33, and the connecting member 32 is coupled to the corresponding screw 31, the stopper 33
  • the power is transmitted to the corresponding screw 31 through the compressed first elastic member 34 and the connecting member 32 to drive the screw 31 to rotate.
  • the shifter 40 does not push the stopper 33, the first elastic member 34 is elongated, the stopper 33 is reset, and the power transmission is cut off.
  • the screw assembly 30 of the multi-frequency antenna transmission device can be arranged in a plane, the thickness of the structure is thin, and the space of the antenna is more flat, which is more convenient for installation.
  • the screw assembly 30 that needs to be adjusted is determined by the shifter 40, and a driving force is achieved to complete the adjustment of the plurality of screw assemblies 30, that is, one drag.
  • the connection between the compressed first elastic member 34, the connecting member 32 and the screw rod 31 is transmitted and rotated, so that the adjusting action is smoother and the stuck phenomenon is avoided.
  • the plurality of screw assemblies 30 are arranged on the same plane side by side, and are arranged symmetrically on the left and right sides.
  • the structure is compact and easy to assemble.
  • Each of the screw assemblies 30 is coupled to a drive gear 21 of the gear train at a position of the stop 33.
  • Each of the transmission gears 21 is opposed to the corresponding spindle assembly 30, the axes of which coincide.
  • the lead screw 31, the connecting member 32, the stopper 33, and the first elastic member 34 in the same screw assembly 30 are on the same axis.
  • the lead screw 31 is disposed coaxially with the connecting member 32, and the end of the lead screw 31 and the connecting member 32 are selectively connected or separated in the axial direction.
  • the axis of each of the transmission gears 21 is parallel to the axis of the lead screw 31, and the positions of the respective transmission gears 21 are fixed and can only be rotated about itself.
  • the axial position of the drive gear 10 is fixed.
  • the stopper 33 of the screw assembly 30 is coupled to the transmission gear 21 of the parallel shaft gear train 20, and the stopper 33 is mounted with a first elastic member 34, and the other end of the first elastic member 34 is connected to the end surface of the coupling member 32.
  • the first set of screw assemblies 30 are in a normal state from the left in Fig. 1. In the normal state, the first elastic members 34 are not significantly compressed, and the connecting members 32 are separated from the lead rods 31.
  • the normal state refers to when the shifter is not in contact with the stopper 33.
  • the stopper 33 of the third set of screw assemblies 30 is pushed by the shifter 40, such as the left side of FIG. 1, and the stopper 33 is pushed toward the screw 31.
  • the first elastic member 34 is compressed, and the connecting member 32 is also pushed toward the side of the screw 31 so that the connecting member 32 and the lead screw 31 are connected.
  • the driving gear 10 rotates to drive all the gears of all the parallel shaft gear trains 20 to rotate at the same time, and only the connecting member 32 corresponding to the stopper 33 pushed by the shifter 40 rotates, and the power of the stopper 33 is compressed.
  • the first elastic member 34 and the corresponding connecting member 32 are transmitted to the corresponding screw 31 to drive the screw 31 to rotate, and the other screw assemblies 30 are not affected. Finally, the lead screw 31 drives the regulator to complete the adjustment action.
  • the shifter 40 pushes the other stoppers 33 to bring the corresponding screws 31 into a connected state. At this time, the rotation of the drive gear 10 will drive the other screw assembly 30 to adjust.
  • the drive gear 10, the parallel shaft gear train 20, and the screw assembly 30 are all mounted on a frame (not shown).
  • the lead screw 31 is axially fixed and can only rotate about itself.
  • Both the connecting member 32 and the stopper 33 are movable in a predetermined range along the axial direction of the screw shaft 31.
  • each screw assembly 30 further includes a second elastic member 35 connected to a side of the connecting member 32 facing away from the first elastic member 34, The second elastic member 35 is disposed away from the end of the connecting member 32 toward the end of the screw rod 31. The second elastic member 35 is compressed and disposed on the connecting member 32 and the lead rod 31 when the connecting member 32 is connected with the lead screw 31. between. The second elastic member 35 is not in contact with the lead screw 31 in a normal state.
  • the shifter 40 pushes the stopper 33 of a certain screw assembly 30, for example, the third set of screw assemblies 30 of the screw assembly 30 are pushed by the shifter 40 from the left of FIG.
  • the stopper 33 is pushed toward the lead screw 31.
  • the first elastic member 34 is compressed, the connecting member 32 is also pushed toward the side of the screw 31, so that the connecting member 32 is connected with the lead screw 31, and the second elastic member 35 is simultaneously connected with the connecting member 32 and the lead screw 31. contact.
  • the driving gear 10 rotates to drive all the gears of all the parallel shaft gear trains 20 to rotate at the same time, only the connecting member 32 corresponding to the stopper 33 is rotated by the shifter 40, and the connecting member 32 passes through the connecting member 32 and the screw The connection between 31 and the second elastic member 35 drive the screw 31 to rotate.
  • the power of the stopper 33 is transmitted to the screw 31 through the compressed first elastic member 34, the connecting member 32, and the second elastic member 35, and the screw 31 is rotated, and the other screw assemblies 30 are not affected.
  • the second elastic member 35 ensures timely transmission of rotation when the connecting member 32 and the lead screw 31 are not reliably connected.
  • the screw rod 31 and the connecting member 32 are selectively connected or separated by a coupling.
  • the coupling can transmit the rotation of the connector 32 to the lead screw 31.
  • the normal state connector 32 is not in contact with the lead screw 31, such as the first set of screw assembly 30 in the normal state as shown in the left of FIG.
  • the shifter 40 pushes the stopper 33 of a certain screw assembly 30, for example, the third set of screw assemblies 30 of the screw assembly 30 are pushed by the shifter 40 from the left of FIG. 1, and the stopper 33 is pushed toward the lead screw 31.
  • the first elastic member 34 is compressed, the connecting member 32 is also pushed toward the side of the screw 31, and the coupling between the connecting member 32 and the lead screw 31 is in a connected state, and the power of the stopper 33 is compressed.
  • An elastic member 34 and a coupling are transmitted to the corresponding screw 31 to drive the screw 31 to rotate.
  • one end of the screw rod 31 is provided with a hole 311, and one side of the connecting member 32 is provided with a hole 311 for the same.
  • the mating plug shaft 321 is inserted.
  • the hole 311 may be a regular polygonal hole or a D-shaped hole or other type of hole, and accordingly, the insertion shaft 321 is a plug-in shaft 321 having an adapted shape.
  • one end of the lead screw 31 is provided with a spline groove
  • one side of the connecting member 32 is provided with a spline shaft for inserting and engaging with the spline groove. Choose as needed.
  • the connection state is achieved when the shaft is inserted into the hole or the groove, and the separation state is achieved when the shaft is taken out of the hole or the groove.
  • the transmission gear 21 is fixedly coupled with the connecting shaft 22, and the stopper 33 is slidably coupled to the connecting shaft 22 along the axial direction of the corresponding transmission gear 21, and is driven.
  • the gear 21 and the stopper 33 are synchronously rotatably connected by the connecting shaft 22.
  • the solution is easy to machine and assemble.
  • the stopper 33 is provided with a connecting hole 331.
  • the cross section of the connecting hole 331 is matched with the cross section of the connecting shaft 22, and when the connecting shaft 22 is inserted through the connecting hole 331, the stopper 33 follows the rotation when the connecting shaft 22 rotates, and the stopper 33 can slide on the connecting shaft 22 in the axial direction of the connecting shaft 22.
  • the stopper 33 of the third group of screw assemblies 30 is pushed by the shifter 40, such as the left side of FIG. 1, and the stopper 33 can be pushed along the connecting shaft 22.
  • the first elastic member 34 disposed between the connecting member 32 and the stopper 33 is compressed, and the connecting member 32 is coupled to the corresponding screw 31, and the stopper 33 is powered by the compressed first elastic member 34.
  • the connecting member 32 is transmitted to the corresponding screw 31 to drive the screw 31 to rotate.
  • the first elastic member 34 is elongated, and the stopper 33 is axially moved and reset along the connecting shaft 22 to cut off the power transmission.
  • the shifter 40 includes a guide rail 41, a guide rod 42 disposed in parallel with the guide rail 41, and slidingly mounted on the guide rail. 41.
  • the retainer 43 is screwed into the guide rod 42 and the face gear 44 is mounted on the guide rod 42.
  • the face gear 44 is meshed with an input gear 50.
  • the axis of the input gear 50 is perpendicular to the axis of the guide rod 42.
  • the holder 43 is convexly provided with a boss 45 for pushing one of the stoppers 33.
  • the guide rail 41 and the guide rod 42 are mounted on a mounting plate (not shown) which are mounted in parallel.
  • a face gear 44 is mounted on the guide rod 42.
  • the face gear 44 meshes with the input gear 50 to convert the rotation of the input gear 50 into the rotation of the face gear 44.
  • the axis of rotation of the face gear 44 is coaxial with the guide rod 42 and the input gear 50.
  • the axis of rotation is vertical.
  • the input gear 50 rotates to drive the surface gear 44 to rotate, the surface gear 44 drives the guide rod 42 to rotate, and the guide rod 42 drives the holder 43 to translate to the position of the next screw assembly 30, and then inputs The gear 50 stops rotating. At this time, the rotation of the drive gear 10 will drive the other screw assembly 30 to adjust.
  • the shifter 40 realizes the transmission of the vertical axis between the input gear 50 and the guide rod 42 through the face gear 44. The transmission efficiency is high, and the axial runout of the input gear 50 does not affect the center distance of the mesh gear 44, so that the input gear 50 The installation is more convenient.
  • the axis of the input gear 50 is parallel and close to the axis of the drive gear 10, which is compact and easy to assemble the drive member.
  • Both ends of the boss 45 are provided with a guiding smooth surface 451 to facilitate the movement of the guiding block 33 to the highest position of the boss 45.
  • the number of the bosses 45 is two, wherein one of the bosses 45 pushes one of the stops 33 and the other of the bosses 45 is located at the other two blocks. Between blocks 33.
  • the side of the retainer 43 facing the screw assembly 30 has two bosses 45 that can resist against the end faces of the stops 33.
  • the pitch of the two bosses 45 is proportional to the pitch of the two screw assemblies 30 such that when one of the bosses 45 contacts the stopper 33, the other boss 45 is located between the two screw rods 31, that is, only at the same time.
  • a boss 45 is in contact with a lead screw 31.
  • the transmission gear 21 drives the corresponding stopper 33 to rotate, and only the connecting member 32 corresponding to the stopper 33 pushed by the boss 45 rotates, and other wires
  • the rod assembly 30 is unaffected.
  • the parallel shaft gear train 20 further includes an idler gear 23 equal to the number of the transmission gears 21, which is close to The transmission gear 21 of the drive gear 10 is connected to the transmission gear 21 via an idle gear 23, and each adjacent transmission gear 21 is connected by an idle gear 23.
  • the idle gear 23 is engaged, so that the respective transmission gears 21 are simultaneously rotated, and the rotational direction of the transmission gear 21 is the same as the rotational direction of the drive gear 10.
  • the parallel shaft gear train 20 is based on an involute gear transmission with low friction and high transmission efficiency.
  • the drive gear 10 is connected with two gear transmission groups 20a, and the idle gear 23 and the transmission gear 21 are sequentially arranged to form a gear transmission group 20a, all
  • the axis of the idler gear 23 is on the same plane as the axis of the transmission gear 21.
  • the gears of the parallel shaft gear train 20 are arranged symmetrically left and right.
  • the driving gear 10 is located on the left-right symmetrical center line, and meshes with the idle gears 23 on the left and right sides, the idle gear 23 meshes with the transmission gear 21 of the gear train, and the transmission gear 21 is meshed with the next idle gear 23, which are sequentially arranged.
  • Each gear axis is parallel to the axis of the lead screw 31, and each gear is axially fixed and can only rotate about itself.
  • the connecting member 32 includes a main body portion 322 and a cylindrical portion 323 disposed on one side of the main body portion 322 .
  • the stopper 33 includes a plate body 332 and a limiting portion 333 extending from a side of the plate body 332 facing the connecting member 32.
  • One end of the first elastic member 34 is inserted into the cylindrical portion 323 and abuts against the body portion 322.
  • the other end of the first elastic member 34 is sleeved outside the limiting portion 333 and abuts against the plate body 332. This solution facilitates the assembly of the first elastic member 34.
  • the limiting section 333 is aligned with the cylindrical portion 323.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transmission Devices (AREA)
  • Details Of Aerials (AREA)

Abstract

多频天线传动装置包括驱动齿轮(10)、平行轴齿轮轮系(20)、丝杆组件(30)、换挡器(40)。传动齿轮(21)与丝杆组件(30)挡块(33)对应连接，驱动齿轮(10)带动各个传动齿轮(21)转动，全部挡块(33)都转动。换挡器(40)推动其中一个丝杆组件(30)的挡块(33)，使设于连接件(32)与挡块(33)之间的第一弹性件(34)压缩，连接件(32)连接于对应丝杆(31)，挡块(33)动力通过压缩的第一弹性件(34)、连接件(32)传递至对应丝杆(31)，带动该丝杆(31)旋转。丝杆组件(30)可以平面排列，结构厚度较薄，天线空间体积更扁平，更利于安装。通过换挡器(40)确定要调节的丝杆组件(30)，实现一个驱动动力完成多个丝杆组件(30)调节，即一拖多。由压缩后的第一弹性件(34)、连接件(32)与丝杆(31)之间的连接传动转动，调节动作更加顺畅，避免卡顿现象。

Description

多频天线传动装置 技术领域
本发明属于用于移动通信天线的传动装置技术领域，更具体地说，是涉及一种多频天线传动装置。
 背景技术
随着移动通信技术的发展，大容量多频段天线成为移动通信天线的重要发展方向。要在有限的空间内容纳更多的天线，不能将多个段天线简单的组装在一起，这样将导致天线的体积庞大，重量重，效率低下。
现有产品的大容量多频天线，通过将多个频段集中组装在一个天线内，每个频段的调节器与一个齿条相接，多个齿条并排排列在平面上，通过一个共用的驱动齿轮驱动齿条移动并实现调节。当共用齿轮在不同的位置与不同的齿条啮合，实现对不同齿条的调节。由于共用齿轮要移动到不同的齿条位置，这对齿轮与齿条的位置有着严格的要求，现有产品的共用齿轮在移动位置时易出现卡顿等现象，影响天线调节的及时性和准确性。
 技术问题
本发明的目的在于提供一种多频天线传动装置，以解决现有多频天线采用齿轮与齿条调节位置对齿轮与齿条的位置有严格要求、共用齿轮在移动位置时易出现卡顿的技术问题。
 技术解决方案
为实现上述目的，本发明采用的技术方案是：提供一种多频天线传动装置，包括：
驱动齿轮；
平行轴齿轮轮系，其包括由所述驱动齿轮驱动转动的若干传动齿轮；
与所述传动齿轮一一对应设置的丝杆组件，每一所述丝杆组件均包括丝杆、与所述丝杆选择性地相连接或相分离的连接件、与对应的所述传动齿轮相连接的挡块、及设于所述连接件与所述挡块之间的第一弹性件；以及
用于推动其中一个所述挡块使得对应的所述第一弹性件压缩设置于该挡块与对应的所述连接件之间且该连接件与对应的所述丝杆相连接的换挡器。
 有益效果
传动齿轮与丝杆组件挡块一一对应连接，驱动齿轮带动各个传动齿轮转动，全部挡块都转动。换挡器推动其中一个丝杆组件的挡块，使设于连接件与挡块之间的第一弹性件压缩，且连接件连接于对应丝杆，挡块动力通过压缩的第一弹性件、连接件传递至对应丝杆，带动该丝杆旋转。换挡器不推动挡块时，第一弹性件会伸长，挡块复位，切断动力传递。该多频天线传动装置的丝杆组件可以平面排列，结构厚度较薄，天线空间体积更扁平，更利于安装。通过换挡器确定需要调节的丝杆组件，实现一个驱动动力完成多个丝杆组件的调节，即一拖多。由压缩后的第一弹性件、连接件与丝杆之间的连接传动转动，使调节动作更加顺畅，避免卡顿现象。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的多频天线传动装置的主视图；
图2为图1的多频天线传动装置的立体装配图；
图3为图2的多频天线传动装置的另一角度的立体装配图；
图4为图2的多频天线传动装置的立体分解图。
 本发明的实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者间接在该另一个元件上。当一个元件被称为是“连接于”另一个元件，它可以是直接连接到另一个元件或间接连接至该另一个元件上。
需要理解的是，术语“长度”、“宽度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
请参阅图1至图4，先对本发明提供的多频天线传动装置进行说明。多频天线传动装置，包括驱动齿轮10、平行轴齿轮轮系20、丝杆组件30、换挡器40。平行轴齿轮轮系20包括由驱动齿轮10驱动转动的若干传动齿轮21。丝杆组件30与传动齿轮21一一对应设置，每一丝杆组件30均包括丝杆31、与丝杆31选择性地相连接或相分离的连接件32、与对应的传动齿轮21相连接的挡块33、及设于连接件32与挡块33之间的第一弹性件34。换挡器40用于推动其中一个挡块33，使得对应的第一弹性件34压缩设置于该挡块33与对应的连接件32之间且该连接件32与对应的丝杆31相连接。
传动齿轮21与丝杆组件30挡块33一一对应连接，驱动齿轮10带动各个传动齿轮21转动，全部挡块33都转动。换挡器40推动其中一个丝杆组件30的挡块33，使设于连接件32与挡块33之间的第一弹性件34压缩，且连接件32连接于对应丝杆31，挡块33动力通过压缩的第一弹性件34、连接件32传递至对应丝杆31，带动该丝杆31旋转。换挡器40不推动挡块33时，第一弹性件34会伸长，挡块33复位，切断动力传递。该多频天线传动装置的丝杆组件30可以平面排列，结构厚度较薄，天线空间体积更扁平，更利于安装。通过换挡器40确定需要调节的丝杆组件30，实现一个驱动动力完成多个丝杆组件30的调节，即一拖多。由压缩后的第一弹性件34、连接件32与丝杆31之间的连接传动转动，使调节动作更加顺畅，避免卡顿现象。
多个丝杆组件30在同一平面上，并排排列，且左右两侧，对称排布。该结构紧凑，容易装配。
每个丝杆组件30在挡块33位置与齿轮轮系中的某个传动齿轮21相连。每个传动齿轮21与对应丝杆组件30相对，两者的轴线重合。同一丝杆组件30中的丝杆31、连接件32、挡块33、第一弹性件34在同一轴线上。丝杆31与连接件32同轴设置，丝杆31的端部与连接件32之间选择性地沿轴向相连接或相分离。各个传动齿轮21的轴线与丝杆31的轴线平行，且各个传动齿轮21的位置固定，仅可以绕自身旋转。驱动齿轮10的轴向位置固定。
丝杆组件30的挡块33与平行轴齿轮轮系20中的传动齿轮21相连，挡块33上安装有第一弹性件34，第一弹性件34另一端与连接件32端面相连。图1左起第一组丝杆组件30处于正常状态，正常状态下第一弹性件34未明显压缩，连接件32与丝杆31相分离。正常状态指的换档器未与挡块33接触时。
当换挡器40推动某个丝杆组件30的挡块33时，比如图1左起第三组丝杆组件30挡块33被换挡器40推动，该挡块33被推向丝杆31一侧，第一弹性件34被压缩，连接件32也被推向丝杆31一侧，使得连接件32与丝杆31之间相连接。此时，驱动齿轮10转动，带动所有平行轴齿轮轮系20所有齿轮同时转动，只有由换挡器40推动的挡块33所对应的连接件32发生转动，该挡块33的动力通过压缩的第一弹性件34与对应的连接件32传递至对应的丝杆31，带动丝杆31旋转，其它丝杆组件30不受影响。最终丝杆31驱动调节器完成调节动作。当需要调节其它丝杆组件30时，换挡器40推动其它挡块33，使对应丝杆31进入连接状态。此时，驱动齿轮10转动将带动另外一个丝杆组件30调节。
驱动齿轮10、平行轴齿轮轮系20、丝杆组件30均安装于机架（图未示）上。在丝杆组件30中，丝杆31轴向位置固定，仅可以绕自身旋转。连接件32与挡块33均能够沿丝杆31轴向在预定范围内移动，在挡块33靠近于连接件32时，第一弹性件34压缩，挡块33的动力通过该第一弹性件34传递至连接件32。
进一步地，作为本发明提供的多频天线传动装置的一种具体实施方式，每一丝杆组件30还包括连接于连接件32背离于第一弹性件34的一侧的第二弹性件35，第二弹性件35远离于连接件32的端部朝向于丝杆31的端部，第二弹性件35在连接件32与丝杆31相连接时压缩设置于该连接件32与该丝杆31之间。第二弹性件35正常状态下不与丝杆31接触。当换挡器40推动某个丝杆组件30的挡块33时，比如图1左起第三组丝杆组件30挡块33被换挡器40推动，挡块33被推向丝杆31一侧，第一弹性件34被压缩，连接件32也被推向丝杆31一侧，使得连接件32与丝杆31之间相连接，第二弹性件35同时与连接件32和丝杆31接触。此时，驱动齿轮10转动，带动所有平行轴齿轮轮系20所有齿轮同时转动，只有由换挡器40推动挡块33所对应的连接件32发生转动，连接件32通过连接件32与丝杆31之间的连接及第二弹性件35带动丝杆31旋转。该挡块33的动力通过压缩的第一弹性件34、连接件32、第二弹性件35传递至丝杆31，带动该丝杆31旋转，其它丝杆组件30不受影响。第二弹性件35保证连接件32与丝杆31未可靠连接时转动的及时传递。在换挡器40不推动挡块33时，压缩的第二弹性件35会伸长，推动连接件32朝向挡块33移动，连接件32分离于丝杆端部，实现复位。
进一步地，作为本发明提供的多频天线传动装置的一种具体实施方式，丝杆31与连接件32之间通过联轴器选择性地相连接或相分离。联轴器可以将连接件32的转动传递到丝杆31上。正常状态连接件32不与丝杆31接触，比如图1左起第一组丝杆组件30处于正常状态。当换挡器40推动某个丝杆组件30的挡块33时，比如图1左起第三组丝杆组件30挡块33被换挡器40推动，挡块33被推向丝杆31一侧，第一弹性件34被压缩，连接件32也被推向丝杆31一侧，连接件32与丝杆31之间的联轴器处于连接状态，该挡块33的动力通过压缩的第一弹性件34、联轴器传递至对应的丝杆31，带动丝杆31旋转。
进一步地，请参阅图4，作为本发明提供的多频天线传动装置的一种具体实施方式，丝杆31的一端部开设有型孔311，连接件32的一侧设有用于与型孔311插接配合的插接轴321。型孔311可以是正多边形孔或D形孔或其它型孔，相应地，插接轴321为具有相适配形状的插接轴321。或者，丝杆31的一端部开设有花键槽，连接件32的一侧设有用于与花键槽插接配合的花键轴。按需选用。当轴插入孔或槽时实现连接状态，当轴脱出孔或槽时实现分离状态。
进一步地，作为本发明提供的多频天线传动装置的一种具体实施方式，传动齿轮21固定连接有连接轴22，挡块33沿对应的传动齿轮21的轴向滑动连接于连接轴22，传动齿轮21与挡块33之间通过连接轴22同步转动连接。该方案容易加工与装配。挡块33开设有连接孔331，连接孔331的截面与连接轴22的截面相适配，在连接轴22穿设于连接孔331时，连接轴22转动时挡块33跟随转动，而且挡块33可以沿连接轴22的轴向在连接轴22上滑动。当换挡器40推动某个丝杆组件30的挡块33时，比如图1左起第三组丝杆组件30挡块33被换挡器40推动，挡块33能够沿连接轴22被推向丝杆31一侧，使设于连接件32与挡块33之间的第一弹性件34压缩，且连接件32连接于对应丝杆31，挡块33动力通过压缩的第一弹性件34、连接件32传递至对应丝杆31，带动该丝杆31旋转。换挡器40不推动挡块33时，第一弹性件34会伸长，挡块33沿连接轴22轴向移动复位，切断动力传递。
进一步地，请参阅图2、图3，作为本发明提供的多频天线传动装置的一种具体实施方式，换挡器40包括导轨41、与导轨41平行布置的导向杆42、滑动安装于导轨41且与导向杆42螺纹传动配合的保持架43、及安装于导向杆42的面齿轮44，面齿轮44与一输入齿轮50啮合传动配合，输入齿轮50的轴线与导向杆42的轴线相垂直，保持架43凸设有用于推动其中一个挡块33的凸台45。导轨41和导向杆42安装在安装板（图未示）上，两者平行安装。导向杆42上安装有面齿轮44，面齿轮44与输入齿轮50啮合，将输入齿轮50的转动转化为面齿轮44的转动，面齿轮44旋转轴线与导向杆42同轴、与输入齿轮50的旋转轴线垂直。面齿轮44转动后，带动导向杆42转动，保持架43安装在导轨41和保持架43上，导向杆42转动时带动保持架43左右平移。输入齿轮50与换档器相连，带动换档器切换位置。当需要调节其它丝杆组件30时，输入齿轮50转动，带动面齿轮44转动，面齿轮44带动导向杆42转动，导向杆42带动保持架43平移到下一个丝杆组件30的位置，然后输入齿轮50停止转动。此时，驱动齿轮10转动将带动另外一个丝杆组件30调节。换挡器40通过面齿轮44实现输入齿轮50与导向杆42之间垂直轴线的运动传递，传动效率高，输入齿轮50的轴向跳动不影响与面齿轮44啮合的中心距，使输入齿轮50的安装更方便。输入齿轮50的轴线与驱动齿轮10的轴线相平行且相靠近，该结构紧凑，容易装配驱动件。凸台45的两端部均设有引导光滑面451，便于引导挡块33移动至凸台45的最高位。
进一步地，作为本发明提供的多频天线传动装置的一种具体实施方式，凸台45的数量为二，其中一个凸台45推动其中一个挡块33时另外一个凸台45位于另外两个挡块33之间。保持架43面向丝杆组件30的一侧有两个凸台45，凸台45可抵挡在挡块33的端面。两个凸台45的间距与两个丝杆组件30间距呈一定比例，使得当其中一个凸台45接触挡块33时另一个凸台45刚好位于两个丝杆31之间，即同一时刻只有一个凸台45与一个丝杆31接触。驱动齿轮10带动平行轴齿轮轮系20的传动齿轮21转动时，传动齿轮21分别带动对应的挡块33转动，只有由凸台45推动的挡块33所对应的连接件32发生转动，其它丝杆组件30不受影响。
进一步地，请参阅图1、图2，作为本发明提供的多频天线传动装置的一种具体实施方式，平行轴齿轮轮系20还包括与传动齿轮21的数量相等的惰齿轮23，靠近于驱动齿轮10的传动齿轮21与该传动齿轮21之间通过一惰齿轮23连接，每相邻两个传动齿轮21之间通过一惰齿轮23连接。在驱动齿轮10转动时，通过惰齿轮23配合，使得各个传动齿轮21同时转动，且传动齿轮21的转动方向与驱动齿轮10的转动方向相同。平行轴齿轮轮系20基于渐开线齿轮传动，摩擦小，传动效率高。
进一步地，作为本发明提供的多频天线传动装置的一种具体实施方式，驱动齿轮10连接有两个齿轮传动组20a，惰齿轮23与传动齿轮21依次相间排列组成一个齿轮传动组20a，所有惰齿轮23的轴线与传动齿轮21的轴线在同一平面上。平行轴齿轮轮系20的齿轮呈左右对称排布。驱动齿轮10位于左右对称的中心线上，同时与左右两侧的惰齿轮23啮合，惰齿轮23与齿轮轮系的传动齿轮21啮合，传动齿轮21再与下一个惰齿轮23啮合，依次相间排列，各个齿轮轴线与丝杆31轴线平行，且各个齿轮轴向位置固定，仅可以绕自身旋转。
进一步地，请参阅图1、图4，作为本发明提供的多频天线传动装置的一种具体实施方式，连接件32包括本体部322及设于本体部322的一侧的筒状部323，挡块33包括板体332及于板体332朝向于连接件32的一侧延伸形成的限位段333，第一弹性件34的其中一端插设于筒状部323并抵接于本体部322，第一弹性件34的另外一端套设于限位段333外并抵接于板体332。该方案便于第一弹性件34的装配。限位段333对齐于筒状部323，在挡块33靠近于连接件32时，第一弹性件34压缩，挡块33动力通过该第一弹性件34传递至连接件32，工作可靠。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (12)

  1. 多频天线传动装置，其特征在于，包括：
    驱动齿轮；
    平行轴齿轮轮系，其包括由所述驱动齿轮驱动转动的若干传动齿轮；
    与所述传动齿轮一一对应设置的丝杆组件，每一所述丝杆组件均包括丝杆、与所述丝杆选择性地相连接或相分离的连接件、与对应的所述传动齿轮相连接的挡块、及设于所述连接件与所述挡块之间的第一弹性件；以及
    用于推动其中一个所述挡块使得对应的所述第一弹性件压缩设置于该挡块与对应的所述连接件之间且该连接件与对应的所述丝杆相连接的换挡器。
  2. 如权利要求1所述的多频天线传动装置，其特征在于，每一所述丝杆组件还包括连接于所述连接件背离于所述第一弹性件的一侧的第二弹性件，所述第二弹性件远离于所述连接件的端部朝向于所述丝杆的端部，所述第二弹性件在所述连接件与所述丝杆相连接时压缩设置于该连接件与该丝杆之间。
  3. 如权利要求1所述的多频天线传动装置，其特征在于，所述丝杆与所述连接件之间通过联轴器选择性地相连接或相分离。
  4. 如权利要求3所述的多频天线传动装置，其特征在于，所述丝杆的一端部开设有型孔，所述连接件的一侧设有用于与所述型孔插接配合的插接轴；
    或者，所述丝杆的一端部开设有花键槽，所述连接件的一侧设有用于与所述花键槽插接配合的花键轴。
  5. 如权利要求1所述的多频天线传动装置，其特征在于，所述传动齿轮固定连接有连接轴，所述挡块沿对应的所述传动齿轮的轴向滑动连接于所述连接轴，所述传动齿轮与所述挡块之间通过所述连接轴同步转动连接。
  6. 如权利要求1至5任一项所述的多频天线传动装置，其特征在于，所述换挡器包括导轨、与所述导轨平行布置的导向杆、滑动安装于所述导轨且与所述导向杆螺纹传动配合的保持架、及安装于所述导向杆的面齿轮，所述面齿轮与一输入齿轮啮合传动配合，所述输入齿轮的轴线与所述导向杆的轴线相垂直，所述保持架凸设有用于推动其中一个所述挡块的凸台。
  7. 如权利要求6所述的多频天线传动装置，其特征在于，所述凸台的数量为二，其中一个所述凸台推动其中一个所述挡块时另外一个所述凸台位于另外两个所述挡块之间。
  8. 如权利要求1至5任一项所述的多频天线传动装置，其特征在于，所述平行轴齿轮轮系还包括与所述传动齿轮的数量相等的惰齿轮，靠近于所述驱动齿轮的所述传动齿轮与该传动齿轮之间通过一所述惰齿轮连接，每相邻两个所述传动齿轮之间通过一所述惰齿轮连接。
  9. 如权利要求8所述的多频天线传动装置，其特征在于，所述驱动齿轮连接有两个齿轮传动组，所述惰齿轮与所述传动齿轮依次相间排列组成一个所述齿轮传动组，所有所述惰齿轮的轴线与所述传动齿轮的轴线在同一平面上。
  10. 如权利要求1至5任一项所述的多频天线传动装置，其特征在于，所述连接件包括本体部及设于所述本体部的一侧的筒状部，所述挡块包括板体及于所述板体朝向于所述连接件的一侧延伸形成的限位段，所述第一弹性件的其中一端插设于所述筒状部并抵接于所述本体部，所述第一弹性件的另外一端套设于所述限位段外并抵接于所述板体。
  11. 如权利要求1至5任一项所述的多频天线传动装置，其特征在于，每一所述丝杆组件中，所述丝杆与所述连接件同轴设置。
  12. 如权利要求5所述的多频天线传动装置，其特征在于，所述挡块开设有连接孔，所述连接孔的截面与所述连接轴的截面相适配。
PCT/CN2018/080476 2017-12-06 2018-03-26 多频天线传动装置 WO2019109550A1 (zh)

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