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WO2018176959A1 - Antenne et palier lisse sans desserrage - Google Patents

Antenne et palier lisse sans desserrage Download PDF

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Publication number
WO2018176959A1
WO2018176959A1 PCT/CN2017/120177 CN2017120177W WO2018176959A1 WO 2018176959 A1 WO2018176959 A1 WO 2018176959A1 CN 2017120177 W CN2017120177 W CN 2017120177W WO 2018176959 A1 WO2018176959 A1 WO 2018176959A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
rotating shaft
hole
limiting
sliding bearing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/120177
Other languages
English (en)
Chinese (zh)
Inventor
游建军
刘永军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Comba Telecom Technology Guangzhou Ltd
Comba Telecom Systems Guangzhou Co Ltd
Tianjin Comba Telecom Systems Co Ltd
Comba Network Systems Co Ltd
Original Assignee
Comba Telecom Technology Guangzhou Ltd
Comba Telecom Systems China Ltd
Comba Telecom Systems Guangzhou Co Ltd
Tianjin Comba Telecom Systems Co Ltd
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 Comba Telecom Technology Guangzhou Ltd, Comba Telecom Systems China Ltd, Comba Telecom Systems Guangzhou Co Ltd, Tianjin Comba Telecom Systems Co Ltd filed Critical Comba Telecom Technology Guangzhou Ltd
Publication of WO2018176959A1 publication Critical patent/WO2018176959A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas

Definitions

  • the present invention relates to the field of mobile antennas, and in particular to a detachable sliding bearing and an antenna using the same.
  • the two-dimensional adjustable antenna adds a remote horizontally adjustable function module based on the traditional antenna, and can remotely control the antenna to automatically adjust the radiation direction to achieve more precise management.
  • a horizontally adjustable functional module uses a sliding bearing that acts as a rotary support.
  • the bearing functions to support rotation.
  • the rotating shaft of the bearing is fixed on the bottom plate through the fixing seat, the bottom plate and the fixing seat are easily deformed, so that the rotating shaft is detached from the sleeve, or the shaft and the sleeve are separated from each other due to the axial matching gap caused by the machining error of the part, resulting in the antenna.
  • the normal use of the device is affected and may even cause the antenna to be damaged.
  • a first object of the present invention is to provide a retaining slide bearing that prevents a shaft from coming off the sleeve.
  • a second object of the present invention is to provide an antenna using the above bearing to ensure its normal use and prolong its service life.
  • the present invention provides the following technical solutions:
  • a slidable bearing includes a sleeve and a rotating shaft assembled with the sleeve, the sleeve includes a limiting end and a mounting end and the middle portion has a mounting hole penetrating through the two ends;
  • the rotating shaft comprises a placing a fitting portion in the mounting hole and a protrusion extending from the mounting hole and used for connecting the member to be supported, the engaging portion of the sleeve and the rotating shaft is designed such that the sleeve limits the rotating shaft from Falling off in the sleeve.
  • the mounting end of the sleeve corresponds to the mating portion of the rotating shaft, and the limiting end of the sleeve corresponds to the protruding portion of the rotating shaft;
  • the engaging portion of the rotating shaft is provided with a limiting flange on the outer circumference thereof.
  • the limiting end of the sleeve is provided with a limiting boss for unidirectionally blocking the limiting flange in the mounting hole.
  • the limiting flange is formed by the fitting portion extending in a radial direction.
  • the limiting boss is inclined along the mounting end toward the limiting end toward the axis, and the limiting flange is designed to be coupled with the limiting boss when sliding to the limiting boss Engage each other.
  • the projecting portion of the rotating shaft is provided with at least one first connecting post which extends from the protruding end toward the mating portion and for the threaded connecting member to pass through the member to be supported.
  • the fitting portion is recessed by an end surface, and the first connecting post has a through hole communicating with the groove for the threaded connecting member to pass through the through hole from the groove.
  • the sleeve is provided with a cover on the limiting end, and a retaining hole for the protruding portion of the rotating shaft and a mounting hole for mounting the sleeve to the external supporting body are opened thereon Connection hole.
  • the sleeve includes an inner ring and an outer ring which are coaxially disposed and connected to the cover, and a plurality of second connecting posts are disposed between the inner and outer rings, and each of the second connecting columns is open a through hole that communicates with the connection hole.
  • reinforcing ribs are connected between the inner ring and the outer ring.
  • an end of the sleeve opposite to the cover is provided with a pair of positioning pins distributed along the diameter of the sleeve.
  • the sleeve and the rotating shaft are made of high-strength plastic or fiber-reinforced plastic.
  • An antenna includes an antenna cover, an upper end mounting plate and a lower end mounting plate fixed to upper and lower ends of the antenna cover, a bearing fixed to the upper end mounting plate, a driving module fixed to the lower end mounting plate, and a connection between the bearing and the driving module.
  • An antenna reflector wherein the bearing is the above-described snap-off sliding bearing, wherein the sleeve is connected to the upper end mounting plate, and the rotating shaft is coupled to the antenna reflector.
  • the upper end mounting plate is provided with a positioning hole corresponding to the positioning pin and a through hole corresponding to the connection hole provided on the surface cover.
  • the sleeve and the rotating shaft are combined with each other, wherein the engaging portion of the rotating shaft is provided with a limiting flange on the outer circumference thereof, and the limiting end of the sleeve is limited in the mounting hole.
  • Positioning boss during the working of the bearing, due to the existence of the limiting boss, the limiting flange can only move a small extent between the limiting boss and the external supporting body, thereby limiting the rotation of the shaft from the sleeve Shedding, to ensure the stability of the use of the bearing, thus ensuring the normal use of the antenna and extending the life of the antenna.
  • Figure 1 is a perspective view of a sliding bearing in accordance with one embodiment of the present invention.
  • Figure 2 is a cross-sectional view showing the state of use of the detachment sliding bearing shown in Figure 1;
  • Figure 3 is a perspective structural view of the rotating shaft of the sliding bearing shown in Figure 1;
  • Figure 4 is a perspective structural view showing another angle of the anti-skid shaft shown in Figure 3;
  • Figure 5 is a perspective structural view of the sleeve of the retaining slide bearing shown in Figure 1;
  • Figure 6 is a perspective structural view of the anti-skid sleeve shown in Figure 5 at another angle;
  • Figure 7 is a perspective structural view of an antenna according to an embodiment of the present invention.
  • Figure 8 is a perspective structural view of the upper end mounting plate of the antenna shown in Figure 7.
  • the retaining slide bearing 4 includes a sleeve 41 and a rotating shaft 42 which are assembled with each other, wherein the rotating shaft 42 is rotatable relative to the sleeve 41, and the sleeve 41 defines that the rotating shaft 42 can only move in a small range in the axial direction. Can't fall out of it.
  • the sleeve 41 includes a mounting end 412 and a limiting end 413 along its axial direction, and a mounting hole 411 penetrating through the two ends is formed in the middle portion thereof.
  • the mounting end 412 is used to mount the bearing to an external support, such as the upper end mounting plate 2 (see Figure 7) below.
  • the rotating shaft 42 includes a fitting portion 421 and a protruding portion 422 along its axial direction.
  • the fitting portion 421 is placed in the mounting hole 411 of the sleeve 41, and is restrained by the sleeve 41 from the axial direction of the extending portion 422 along the engaging portion 421.
  • the protruding portion 422 passes through the mounting hole 411 and is exposed to the limiting end 413 to be connected to an external component to be supported, such as the antenna reflector 6 (see FIG. 7) below, to reflect the antenna.
  • the plate 6 constitutes a support and supports its axial rotation about the axis of rotation 42.
  • the diameter of the mounting hole 411 on the side of the limiting end 413 is slightly larger than the diameter of the rotating shaft 42 on the side of the protruding portion 422, and the rotating shaft 42 is placed in the mounting hole 411 after the installation is completed.
  • the projecting portion 422 of the rotating shaft is almost in contact with the inner surface 411 of the mounting hole, and therefore, the degree of freedom of the rotating shaft 42 in the radial direction is almost completely limited.
  • the sleeve 41 is designed to constrain the axial movement distance of the rotating shaft 42 along the engaging portion 421 toward the protruding portion 422.
  • the rotating shaft 42 can be moved only in a small range in the axial direction and in the axial direction, and is limited in the remaining plurality of degrees of freedom. Therefore, the purpose of preventing the rotating shaft 42 from being detached from the sleeve 41 can be achieved. Effectively ensure the stability of the use of the bearing 4 and extend its service life.
  • the engaging portion 421 of the rotating shaft 42 is provided with a limiting flange 423 on the outer circumference thereof.
  • the limiting end 413 of the sleeve 41 is disposed in the mounting hole 411 for unidirectionally blocking the limiting protrusion.
  • the mounting end 412 of the sleeve is used to connect the external support. Therefore, after the bearing 4 is installed, the limiting flange 423 will be located between the limiting boss 4111 and the external support. Therefore, the rotary shaft 42 can only move in a small range in the axial direction. In the process of stopping the sliding bearing 4, although the assembly error or the like occurs when the components in the antenna are assembled, the meshing size of the rotating shaft 42 and the sleeve 41 may be reduced, and at this time, the rotating shaft 42 is subjected to support.
  • the limiting flange 423 is formed to extend in the radial direction by the fitting portion 421.
  • the limiting flange 423 is integrally formed with the rotating shaft 42 to increase the toughness of the limiting flange 423 and to facilitate production.
  • the limiting boss 4111 is disposed obliquely toward the axis along the mounting end 412 toward the limiting end 413, and the limiting flange 423 is configured to slide to the limiting boss 4111 when it is slid It can be engaged with the limit boss 4111.
  • the inclined arrangement of the limiting boss 4111 in the invention will facilitate the decomposition of the force acting thereon, thereby reducing the wear between the limiting flange 423 and the limiting boss 4111, and increasing the rotation of the rotating shaft 42 and the sleeve 41. Durability.
  • the inclination angle of the limiting boss 4111 is not limited as long as the limiting flange 423 can be blocked by one direction.
  • the protruding portion 422 of the rotating shaft 42 is provided with at least one first connecting post 4221 extending from the end of the protruding portion 422 toward the engaging portion 421 and being threadable.
  • the connecting member is connected to the member to be supported.
  • the first connecting post 4221 defines a function of the threaded connecting member to prevent the threaded connecting member from swaying when the bearing 4 is in operation, and to strengthen the stability of the sliding bearing 4 and the component connected thereto.
  • the hole for the threaded connecting member on the first connecting post 4221 is a counterbore to save the axial space in the mounting hole.
  • At least one threaded hole may be formed in the end surface of the engaging portion 421 and the extending portion 422 of the through shaft 42 and connected to the member to be supported through the threaded hole by means of a nut string.
  • a connection sleeve is provided at a joint of the to-be-supported member and the rotating shaft 42, and the rotating shaft 42 can be inserted into the connecting sleeve to achieve a tight fitting connection with the member to be supported.
  • the present invention does not limit the manner in which the shaft 42 is coupled to the component to be supported.
  • the engaging portion 421 is concavely formed with a recess 4211.
  • the first connecting post 4221 has a through hole communicating with the recess 4211 for the threaded connecting member to pass through the recess 4211. Through the through hole.
  • the fitting portion 421 is recessed by the end surface to help reduce the weight of the rotating shaft 42 and to facilitate the weight reduction of the bearing 4.
  • the inner edge of the groove 4211 is provided with a reinforcing rib 4123 for reinforcing the strength of the rotating shaft 42, and further consolidating the overall structure of the sliding bearing 4.
  • the sleeve 41 is provided with a cover 4131 at the limiting end 413, and a retaining hole 4132 for the protruding portion 422 of the rotating shaft 42 is opened and used for
  • the sleeve 41 is mounted to a connecting hole 4133 on the outer support.
  • the connecting hole 4133 is a threaded hole, and the sleeve 41 can be connected to the external support body through the threaded hole by means of a screw.
  • the connecting hole 4133 is a through hole, the through hole is filled with a dielectric material, and the sleeve 41 can be connected to the external support through the dielectric material through a tapping screw.
  • the sleeve 41 includes an inner ring (not labeled, the same below) and an outer ring (not labeled, the same below) which are coaxially disposed and connected to the cover 4131, and are distributed between the inner and outer rings.
  • a plurality of second connecting posts 4122, each of the second connecting posts 4122 are provided with a through hole communicating with the connecting hole 4133, as shown in FIG.
  • reinforcing ribs 4123 each connected to the inner ring and the outer ring are disposed.
  • the reinforcing ribs 4123 are used to enhance the strength of the sleeve 41, and further consolidate the overall structure of the slidable bearing 4.
  • one end of the sleeve 41 opposite to the cover 4131 is provided with a pair of positioning pins 4124 distributed along the diameter of the sleeve 41.
  • the positioning pin 4124 is disposed on the outer ring of the sleeve 41 .
  • the external support body is provided with a through hole corresponding to the connecting hole 4133 and a positioning hole corresponding to the positioning pin 4124.
  • the positioning pin 4124 is inserted into the positioning hole for pre-fixing the connecting hole 4133 and
  • the relative positions of the through holes corresponding to the outer support body are such that it is not necessary to adjust the positions of the through holes 4103 in alignment with the through holes on the outer support body in the process of fixing the sleeve 41 and the outer support body by means of the connecting member.
  • the positioning pin 4124 may also be disposed on the reinforcing rib 4223 or the inner ring.
  • the sleeve 41 and the rotating shaft 42 are made of high-strength plastic or fiber-reinforced plastic.
  • the high-strength plastic and the fiber-reinforced plastic have certain flexibility, and can also strengthen the structure of the sliding bearing 4, so that the sleeve and the rotating shaft can be hollowed out to some extent, and the structural strength is not reduced when the weight is reduced. The stability and reliability of the retaining slide bearing 4 are improved.
  • the present invention further provides an antenna 1000 including an antenna cover 1 , an upper end mounting plate 2 and a lower end mounting plate 3 fixed to both ends of the antenna cover, a bearing 4 fixed to the upper end mounting plate 2 , and a fixing at the lower end.
  • a driving module 5 of the board 3 and an antenna reflector 6 connected between the bearing 4 and the driving module 5, wherein the bearing 4 is the above-mentioned detachable sliding bearing 4, wherein the sleeve 41 and the upper mounting plate 2 Connected, the rotating shaft 42 is connected to the antenna reflector 6.
  • the upper end mounting plate 2 defines a positioning hole 21 corresponding to the positioning pin 4124 and a through hole corresponding to the connecting hole 4133 provided on the surface cover 4131 .
  • the positioning pin 4124 is inserted into the positioning hole 21 for preliminarily fixing the relative position of the connecting hole 4133 and the through hole corresponding to the external support.
  • the working process of the antenna of the present invention is: the remote control driving module drives the antenna reflector to rotate to adjust the radiation direction of the antenna. Since the rotating shaft is fixedly connected with the antenna reflector, the rotating shaft can be further rotated about the axial direction. In the antenna of the present invention, since the above-mentioned bearing is used, the movement of the rotating shaft is restricted in the axial direction, and therefore, the rotating shaft does not escape from the sleeve, thereby improving the stability of the entire antenna and prolonging the service life of the antenna.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of Aerials (AREA)

Abstract

L'invention concerne un palier lisse sans desserrage (4), comprenant un manchon d'arbre (41) et un arbre rotatif (42) coopérant avec le manchon d'arbre, le manchon d'arbre (41) comprenant une extrémité de limitation (413) et une extrémité de montage (412) et une partie centrale de celui-ci est pourvue d'un trou de montage (411) pénétrant deux extrémités ; l'arbre rotatif (42) comprend une partie d'adaptation (421) disposée dans le trou de montage (411) et une partie d'extension (422) pénétrant hors du trou de montage (411) et utilisée pour relier un composant à supporter (6) et le manchon d'arbre (41) et la partie d'adaptation (421) de l'arbre rotatif (42) sont conçus de sorte que le manchon d'arbre (41) empêche l'arbre rotatif (42) de se desserrer dans le manchon d'arbre, ce qui permet d'assurer la stabilité du palier et de prolonger la durée de vie en service du palier. L'invention concerne en outre une antenne utilisant le palier lisse sans desserrage.
PCT/CN2017/120177 2017-03-28 2017-12-29 Antenne et palier lisse sans desserrage Ceased WO2018176959A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710190750.3A CN106763148B (zh) 2017-03-28 2017-03-28 一种天线
CN201710190750.3 2017-03-28

Publications (1)

Publication Number Publication Date
WO2018176959A1 true WO2018176959A1 (fr) 2018-10-04

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PCT/CN2017/120177 Ceased WO2018176959A1 (fr) 2017-03-28 2017-12-29 Antenne et palier lisse sans desserrage

Country Status (2)

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CN (1) CN106763148B (fr)
WO (1) WO2018176959A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111577771A (zh) * 2020-04-29 2020-08-25 国网山西省电力公司长治供电公司 带电操作隔离开关底座轴承替换装置
CN115529524A (zh) * 2022-09-30 2022-12-27 歌尔科技有限公司 耳机

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CN106763148B (zh) * 2017-03-28 2023-03-14 京信通信技术(广州)有限公司 一种天线
CN107202066A (zh) * 2017-07-21 2017-09-26 如皋市非标轴承有限公司 一种方便注油润滑以及方便拆装式轴承
CN109004941A (zh) * 2018-06-06 2018-12-14 合肥数理电子信息科技有限公司 一种基于无线传输的电子信息传输装置

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Publication number Priority date Publication date Assignee Title
CN111577771A (zh) * 2020-04-29 2020-08-25 国网山西省电力公司长治供电公司 带电操作隔离开关底座轴承替换装置
CN111577771B (zh) * 2020-04-29 2023-05-23 国网山西省电力公司长治供电公司 带电操作隔离开关底座轴承替换装置
CN115529524A (zh) * 2022-09-30 2022-12-27 歌尔科技有限公司 耳机

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CN106763148A (zh) 2017-05-31
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