CN104126250A - 对齐稳定的可调节的天线支架 - Google Patents

对齐稳定的可调节的天线支架 Download PDF

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CN104126250A
CN104126250A CN201280069943.9A CN201280069943A CN104126250A CN 104126250 A CN104126250 A CN 104126250A CN 201280069943 A CN201280069943 A CN 201280069943A CN 104126250 A CN104126250 A CN 104126250A
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countersunk head
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CN104126250B (zh
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I·雷尼尔森
J·M·杰斐逊
M·卢理
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Commscope Technologies LLC
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Andrew LLC
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    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
    • H01Q1/1228—Supports; Mounting means for fastening a rigid aerial element on a boom
    • 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
    • H01Q1/125—Means for positioning
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting

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Abstract

一种天线支架设置有枢转基座和枢转鞍座，该枢转鞍座通过枢转连接件和至少一个枢转臂连接件以可旋转的方式联接到枢转基座。所述枢转连接件设置有安置在所述枢转鞍座的圆锥形沉头枢转连接螺栓孔内的相对的两个圆锥形沉头枢转连接螺栓，所述圆锥形沉头枢转连接螺栓延伸穿过所述枢转鞍座的圆锥形沉头枢转连接螺栓孔,以绕枢转轴线与所述枢转基座联接。

Description

对齐稳定的可调节的天线支架
技术领域
本发明涉及反射器天线。更具体地，本发明涉及具有改善的对齐稳定性的成本高效的可调节的天线支架。
背景技术
例如地面微波反射器天线的反射器天线可以是高度定向的。为了最大化电性能，反射器天线的天线支架可以是可微调的以便容易获得形成RF通信链路的天线对之间的视轴对齐。天线支架应当维持选定的对齐而不在乎到作用在反射器天线上的风和/或冰载荷的随着时间的推移的暴露，取决于安装部位，该载荷可能在短的时段(诸如暴风雨)期间上升到极端水平。随着到目标天线的距离增加，即使很小的对齐移位也变得很重要。例如由于暂时的风和/或冰载荷，天线支架将失去希望的视轴对齐，返回到远程部位(诸如在无线电塔顶部)并且重复对齐程序可能导致巨大的费用。
改善易于对齐调节和对齐稳定性特性的天线支架需要权衡所得到的天线支架的制造成本和尺寸特性。
天线支架市场中的竞争已经将注意力集中于改善对齐稳定性和对齐调节的容易性，同时也最小化总的制造、库存、分配、安装和维护成本。因此，本发明的目标是提供一种反射器天线支架，该反射器天线支架克服现有技术中的缺陷。
附图说明
被并入并且构成本说明书的一部分的附图示出本发明的实施例，其中附图中的相同附图标记指示相同特征或元件并且对于它们出现在其中的每一个附图可以不被详细描述，并且该附图与上面给出的本发明的概括描述和下面给出的实施例的详细描述一起用于说明本发明的原理。
图1是对比天线支架的实际测试数据的图表，该实际测试数据测量当变化的公差和上紧扭矩的枢转连接螺栓和孔受到模拟风载荷时的角偏斜。
图2是示例性天线支架的示意性等距后视图。
图3是图1的天线支架的示意性顶视图。
图4是沿线A-A截取的图3的天线支架的示意性剖视图。
图5是沿线C-C截取的图3的天线支架的示意性剖视图。
图6是沿线B-B截取的图3的天线支架的示意性剖视图。
图7是图1的天线支架的示意性等距视图，展示安装反射器天线到柱。
具体实施方式
本发明人已经发现，天线支架的对齐稳定性的重要因素是诸如带螺纹的螺栓的紧固件和它们的相关联的螺栓孔之间的天线支架中的侧向配合公差。本发明人的测试已经表明，这些配合公差可能是导致在施加模拟的瞬间风和/或冰载荷之后永久不对齐的因素。
图1示出在水平逐渐增大的模拟风载荷被施加且随后被移除时从最初位置的天线支架角对齐的变化的本发明人的测试数据。对相同天线支架构造的实施例执行测试，该构造设置有具有最大空隙、最小空隙的枢转连接螺栓和孔，具有高扭矩的最小空隙和具有另外最大空隙的沉头固定件(圆锥形沉头螺栓头和匹配的沉头螺栓孔)。空隙是螺栓轴的没有螺纹的部分和周围的螺栓孔之间的空间的量，最大空隙使得螺栓能够容易地插入该孔并且最小空隙要求在插入之前紧密对齐。
测试数据显示，即使在公差由于施加显著较高的制造精度和/或紧固扭矩而增加的情况下，当模拟的风载荷被施加到常规螺栓和孔互连件时，产生显著的偏斜和永久的不对齐。然而，安置在对应的沉头螺栓孔内的圆锥形沉头螺栓头的自对齐特性产生显著较高的对齐稳定性(39％改善)并且减小由于瞬间风载荷的永久不对齐(81％改善)。因此，沉头螺栓和孔天线支架改善对齐稳定性，而不需要另外采用提高的制造精度或与施加高扭矩水平到该互连件有关的问题。
使用相对于方位对齐紧固件紧固的圆锥形沉头螺栓头的天线支架2的示例性实施例在图2-6中被示出。枢转基座4通过枢转连接件8和至少一个枢转臂连接件10联接到枢转鞍座6。如图4中最佳地示出的，枢转连接件8使用安置在枢转鞍座6的圆锥形沉头枢转连接螺栓孔14内的相对的两个圆锥形沉头枢转连接螺栓12，该圆锥形沉头枢转连接螺栓12延伸通过枢转鞍座6的圆锥形沉头枢转连接螺栓孔14以沿枢转轴线16与枢转基座4联接。因此，枢转鞍座6可以相对于枢转基座4绕枢转轴线16枢转。
相对的两个圆锥形沉头枢转连接螺栓12延伸通过圆锥形沉头枢转连接螺栓孔14以例如在枢转连接孔18处与枢转基座4联接，该枢转连接孔延伸通过枢转基座4或替代地延伸入专用于每一个圆锥形沉头枢转连接螺栓12的单个枢转连接孔。本领域技术人员将理解，利用单个枢转连接孔18保证每一个圆锥形沉头枢转连接螺栓12与枢转轴线16的对齐。单个枢转连接孔18可以从每一个端部部分地带螺纹，使得枢转连接8的组装/调节不需要带反向螺纹。
虽然被示出具有两个枢转臂连接件10，即在枢转连接件8的每一侧上有一个枢转臂连接件，以便提高强度，但本领域技术人员将理解，取决于天线支架2的希望特性、预期的天线和/或天线安装环境，可能需要仅仅单个枢转臂连接件10。
枢转臂连接件10被示出为延伸螺栓20，该延伸螺栓在枢转基座4和枢转鞍座6之间延伸。如图5中最佳地示出的，延伸螺栓20的第一端部22穿过枢转基座4的枢转槽24并且延伸螺栓20的第二端部26通过圆锥形沉头枢转臂螺栓28联接到枢转鞍座6，该圆锥形沉头枢转臂螺栓延伸通过枢转鞍座6的圆锥形沉头枢转臂螺栓孔30。枢转槽24的尺寸被设计成在枢转鞍座6枢转通过其预期的运动范围时实现延伸螺栓20相对于枢转基座4的希望的角行程。
如图6中最佳地示出的，圆锥形沉头枢转臂螺栓28平行于枢转轴线16被对齐。因此，在通过沿延伸螺栓20的长度调节抵接枢转槽24的螺母32而延伸或缩短延伸螺栓20时，枢转鞍座6根据延伸螺栓20的长度绕枢转连接件8枢转。
枢转鞍座6可以设置有沿枢转轴线16接近枢转槽24的部分圆形横截面(见图3)。具有对应的圆弧段面的垫圈34可以布置成在枢转槽24的前侧36和后侧38上抵靠这个部分圆形的横截面安置。因此，可以贯穿延伸螺栓20的运动的整个角范围保证通过延伸螺栓20的螺母32到枢转基座4的紧密连接。
圆锥形沉头枢转臂螺栓孔14和圆锥形沉头枢转连接螺栓孔30可以被设置在枢转鞍座6中，其中对应的沉孔40的每一个在共同平面内对齐。
为了保证沉头枢转连接螺栓孔14和圆锥形沉头枢转臂螺栓孔30以中心对齐的方式与沉头枢转连接螺栓12和圆柱形沉头枢转臂螺栓28的对应头部接合，螺栓头部42的每一个可以设置有锥角，该锥角基本上等于对应沉孔40的锥角，如图4-6中最佳地示出的。
联接到枢转基座4的安装托架44可以设置有平行于枢转轴线16对齐的安装凹槽45，当安装托架并且因此天线支架连接到竖直表面(诸如柱46或塔腿，例如，如图7中所示)时，实现天线支架2并且因此连接的反射器天线48与竖直的和水平的调节轴线的容易对齐。
天线支架2的另外可调节性可以由联接到枢转鞍座6的升降板50通过沿竖直轴线的角运动范围而提供。升降板50可以设置有天线安装表面52，例如希望的反射器天线48刚性地安装在该天线安装表面上。
本领域技术人员将理解，枢转基座4和/或枢转鞍座6可以通过由金属材料模铸而成本高效地制造。此外，枢转基座4和/或安装托架44可以形成为挤出件，该挤出件随后被切割成具有一定长度和镗削的/带螺纹的必要的孔。
本领域技术人员将理解，圆锥形沉头式螺栓头在对应的圆锥形沉头螺栓孔内的自对齐特性消除了对提供传统螺栓和螺栓孔之间的制造昂贵且组装困难的高精度配合(其中希望不可能侧向移位的互连)的需要。通过提供平行于枢转轴线16的每一个螺栓到孔中的连接作为圆锥形沉头螺栓头在对应圆锥形沉头螺栓孔内的连接，可以提供作为结果的天线支架2的对齐稳定性的显著改善。此外，与仅仅增加互连扭矩水平的先前实践相比，该方案可以具有更高的对齐稳定性，该先前实践可能损坏该组件且/或抑制天线支架2的容易再对齐。
部件表
2  天线支架
4  枢转基座
6  枢转鞍座
8  枢转连接件
10 枢转臂连接件
12 圆锥形沉头枢转连接螺栓
14 圆锥形沉头枢转连接螺栓孔
16 枢转轴线
18 枢转连接孔
20 延伸螺栓
22 第一端部
24 枢转槽
26 第二端部
28 圆锥形沉头枢转臂螺栓
30 圆锥形沉头枢转臂螺栓孔
32 螺母
34 垫圈
36 前侧
38 后侧
40 沉孔
42 螺栓头
44 安装托架
45 安装凹槽
46 柱
48 反射器天线
50 升降板
52 天线安装表面
在前述描述中已经参考具有已知等同物的材料、比率、整数或分量的情况中，则这种等同物并入在这里，如同单独地被阐述。
虽然本发明已经通过其实施例的描述被示出，并且虽然该实施例已经相当详细地被描述，但本申请人不意图将所附权利要求的范围限定或以任何方式限制到这种细节。本领域技术人员将容易想到另外的优点和改进型。因此，本发明在其较宽的方面不限于示出且描述的具体细节、代表性设备、方法和说明性例子。因此，可以偏离这种细节而不偏离本申请人的总发明构思的精神或范围。此外，应当理解，可以对其作出改进和/或修改而不偏离如以下权利要求限定的本发明的范围或精神。

Claims (20)

1.一种天线支架，所述天线支架包括：
枢转基座；
枢转鞍座，所述枢转鞍座通过枢转连接件和至少一个枢转臂连接件以可旋转的方式联接到所述枢转基座；
所述枢转连接件设置有安置在所述枢转鞍座的圆锥形沉头枢转连接螺栓孔内的相对的两个圆锥形沉头枢转连接螺栓，所述圆锥形沉头枢转连接螺栓延伸穿过所述枢转鞍座的圆锥形沉头枢转连接螺栓孔，以绕枢转轴线与所述枢转基座联接。
2.权利要求1所述的天线支架，其中，所述至少一个枢转臂连接件是两个枢转臂连接件，所述枢转连接件被设置在所述两个枢转臂连接件之间。
3.权利要求1所述的天线支架，还包括联接到所述枢转基座的安装托架；所述安装托架设置有平行于所述枢转轴线对齐的安装凹槽。
4.权利要求1所述的天线支架，还包括联接到所述枢转鞍座的升降板；所述升降板设置有天线安装表面。
5.权利要求1所述的天线支架，其中，所述至少一个枢转臂连接件是延伸螺栓，所述延伸螺栓在所述枢转基座和所述枢转鞍座之间延伸；所述延伸螺栓的第一端部穿过所述枢转基座的枢转槽；所述延伸螺栓的第二端部通过圆锥形沉头枢转臂螺栓联接到所述枢转鞍座，所述圆锥形沉头枢转臂螺栓延伸穿过所述枢转鞍座的圆锥形沉头枢转臂螺栓孔；所述圆锥形沉头枢转臂螺栓平行于所述枢转轴线对齐。
6.权利要求5所述的天线支架，其中，所述至少一个枢转臂连接件是两个枢转臂连接件，所述枢转连接件被设置在所述两个枢转臂连接件之间。
7.权利要求5所述的天线支架，其中，所述圆锥形沉头枢转臂螺栓孔和所述圆锥形沉头枢转连接螺栓孔中的一个圆锥形沉头枢转连接螺栓孔被设置在所述枢转鞍座中，分别具有在共同的平面内对齐的沉孔。
8.权利要求5所述的天线支架，其中，所述枢转鞍座设置有绕所述枢转轴线接近所述枢转槽的部分圆形横截面；并且具有圆弧段面的垫圈在所述枢转槽的前侧和后侧上抵靠所述部分圆形横截面安置。
9.权利要求1所述的天线支架，其中，所述相对的两个圆锥形沉头枢转连接螺栓联接到延伸通过所述枢转基座的枢转连接孔的相对端部。
10.权利要求9所述的天线支架，其中，所述相对的两个圆锥形沉头枢转连接螺栓通过螺纹连接联接到所述枢转连接孔。
11.一种用来制造天线支架的方法，所述方法包括以下步骤：
提供枢转基座；
提供枢转鞍座，所述枢转鞍座通过枢转连接件和至少一个枢转臂连接件以可旋转的方式联接到所述枢转基座；
所述枢转连接件设置有安置在所述枢转鞍座的圆锥形沉头枢转连接螺栓孔内的相对的两个圆锥形沉头枢转连接螺栓，所述圆锥形沉头枢转连接螺栓延伸穿过所述枢转鞍座的圆锥形沉头枢转连接螺栓孔，以绕枢转轴线与所述枢转基座联接。
12.权利要求11所述的方法，其中，所述枢转鞍座和所述枢转基座的至少一个通过金属材料的模铸而形成。
13.权利要求11所述的方法，其中，所述相对的两个圆锥形沉头枢转连接螺栓联接到延伸通过所述枢转基座的枢转连接孔的相对端部。
14.权利要求11所述的方法，其中所述圆锥形沉头枢转连接螺栓孔的沉孔设置有锥角，所述锥角基本上等于所述圆锥形沉头枢转连接螺栓的头部的锥角。
15.一种天线支架，所述天线支架包括：
枢转基座；
枢转鞍座，所述枢转鞍座通过设置在两个枢转臂连接件之间的枢转连接件以可旋转的方式联接到所述枢转基座；
所述枢转连接件设置有安置在所述枢转鞍座的圆锥形沉头枢转连接螺栓孔内的相对的两个圆锥形沉头枢转连接螺栓，所述圆锥形沉头枢转连接螺栓延伸穿过所述枢转鞍座的圆锥形沉头枢转连接螺栓孔，以绕枢转轴线与所述枢转基座联接；
所述枢转臂连接件的每一个被设置为在所述枢转基座和所述枢转鞍座之间延伸的延伸螺栓；所述延伸螺栓的第一端部穿过所述枢转基座的枢转槽；所述延伸螺栓的第二端部通过圆锥形沉头枢转臂螺栓联接到所述枢转鞍座，所述圆锥形沉头枢转臂螺栓延伸穿过所述枢转鞍座的圆锥形沉头枢转臂螺栓孔；所述圆锥形沉头枢转臂螺栓平行于所述枢转轴线对齐。
16.权利要求15所述的天线支架，还包括联接到所述枢转基座的安装托架；所述安装托架设置有平行于所述枢转轴线对齐的安装凹槽。
17.权利要求15所述的天线支架，还包括联接到所述枢转鞍座的升降板；所述升降板设置有天线安装表面。
18.权利要求15所述的天线支架，其中，所述圆锥形沉头枢转臂螺栓孔和所述圆锥形沉头枢转连接螺栓孔被设置在所述枢转鞍座中，分别具有在共同的平面内对齐的沉孔。
19.权利要求15所述的天线支架，其中，所述枢转鞍座设置有绕所述枢转轴线接近所述枢转槽的部分圆形横截面；并且具有圆弧段面的垫圈在所述枢转槽的前侧和后侧上抵靠所述部分圆形横截面安置。
20.权利要求15所述的天线支架，其中，所述相对的两个圆锥形沉头枢转连接螺栓联接到延伸通过所述枢转基座的枢转连接孔的相对端部。
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US20130221182A1 (en) 2013-08-29
US8866695B2 (en) 2014-10-21
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EP2817851A1 (en) 2014-12-31

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