1259613 玖、發明說明： 一、 發明所屬之技術領域 本發明係關於一碟型天線調整裝置，特別是關於一種利 用齒輪組進行調整之碟型天線調整裝置。 二、 先前技術 衛星天線接收衛星電視節目的作動原理是利用衛星天線 收集微弱的衛星訊號，並將該衛星訊號反射至裝設在碟型 天線（chsh )焦點處的低雜訊降頻器（i〇w n〇ise converter，LNB )。接著，低雜訊降頻器將此集中的訊號放 大並將頻率降至lGHz左右的中頻，然後經由電規傳送 至室内的選臺器。選臺器將訊號中所要收看的頻道選定， 經放大解調復原成影像及語音訊號後，就可輸入電視而播 放節目。 碟型天線是一種高指向性的接收天線，它需精準的將碟 型天線的正中央對準遠在三萬六千公里上空的衛星。以一 個直徑為一百八十公分的衛星訊號碟型天線為例，若碟型 天線的位置左右移開至原位置的二公分或將仰角調離原點 上下三公分時，訊號就將轉弱甚而消失。當碟型天線使用 Ka波段（26-40 GHz )時，其方位之精度必須可調整至〇工 度之規格，且其誤差不得超過〇〇2度，以精準地對準發射 衛星。 目前應用於Ka波段之碟型天線主要利用可程式化邏輯 控制器（Programmable Logic Controller; PLC)控制伺服 馬達進行調整。但其成本昂貴，而大幅限制其普及化的程 R \Hu\tys\台揚科技中說他433. doc 1259613 度。 三、 發明内容 本發明之目的在於提供一種碟型天線調整裝置，其可依 三軸向來調整碟型天線之指向角度，且可符合Ka波段的精 度要求。另外’本發明利用齒輪組取代習知之PLC控制器 及伺服馬達，可大幅降低製造成本。 為達到上述目的，本發明揭示一種碟型天線調整裝置， 其包含第一、第二及第三齒輪組。該第一齒輪組包含一第 一方疋轉軸，用於調整該碟型天線之盤面角度。該第二齒輪 組包含一約垂直於該第一旋轉軸之第二旋轉軸，用於調整 。亥碟型天線之仰角。該第三齒輪組包含一約垂直於該第二 方疋轉軸之第二旋轉軸，用於調整該碟型天線之旋轉角。 上述各齒輪組係包含一粗調齒輪組及一微調齒輪組，可 刀別達到1及〇· 1度之調整精度。於實際應用上，組成該 粗調#輪組及微調齒輪組之齒輪構件並未加以限定，以下 貝轭例將以正齒輪（spur gear )組及蝸輪蝸桿 (wheeKW0rm)組為例進行說明。 四、 實施方式 圖1係本發明之碟型天線調整裝置之應用示意圖，圖2 广其另-角度之視圖。-碟型天線裝置1〇包含一碟型天線 =二桿12:—碟面固定座13、一碟型天線調 固定於及支木15° §亥碟型天線11及降頻器支擇桿12 面固 面固定座°。該碟型天線調整裳置14連接該碑 支木15,用於調整該碟型天線Π之指向角 腸⑽台揚科技中說咖处如 !259613 ° 該碟型天線調整裝置I4係由—第一 — 齒輪叙17及一第一去认 从兩、、、6、一第二 —第—二弟二齒輪組18構成。該第-齒輪組16包含 天線ul般面^声用以連接該碟面固定座13並調整該碟型 二師0且=、卓/ ’即依圖1所示之x軸旋轉調整。該第 W輪組17連接該第一齒輪組 弟 用其所包含之一笛. 及弟—回輪組18,且利 角m 轉軸32調整該碟型天線η之仰 月即依y軸旋轉調整。該第 （1p 組17及支架心可_其所==連=第二齒輪 以調整該碟型天線U之旋轉角，即依= 疋轉軸33,藉 -、第二及第三齒輪組16、17及8依為=轉㈣ 但A於”…“… 及18為貫質相同之結構， :間上“之角度相差約9〇度，即第―、第二及第 二旋轉軸31、32及33之軸向相 一第 飨u目士 產、、、〇 90度，使得該碟型天 線11具有沿x'y、z軸旋轉調整之功能。 天 =係該第-齒輪組16之放大示意圖，圖 —角度之視圖。該第-齒輪、组16除了包含 、、另 外，另包含一粗調齒輪組21 2 疋由31 久彳政調齒輪組22。 =及圖6例示該粗調齒輪組21及微調齒輪組 Γ2正=。該粗調齒輪組21包含-第-_輪 24,^ , ^ 粗调桿26。該第—蜗桿虫_且 24包含一第一蜗輪242及_ 及弟一蝸桿24丨，且其速比（ Π 120。該正齒輪組25包含一第一正齒輪⑸ 及一弟一正齒輪252，且复讳屮i 此 、速比為20:60 (於本實施例中 兩者之齒數為60齒及20齒）。該第二正齒輪252係與第 H:\Hu\tys\台揚科技中說\89433 doc Ϊ259613 一蜗輪242同軸旋轉， 旋轉鉍^ 轉 弟一正齒輪251係帶動該第一 241… 動。该粗調桿26之-端係連接該堝桿 輪組2=:?41旋轉。根據上述之配置，該粗調齒 r X · 360 C^T^(20/60)x (1/120)=1/360 ^ :a。因此’當該粗調桿26旋轉一圈（36〇度）時 疋轉軸31相當於轉動1度，故該粗調齒輪組21可提供！ 度之調整精度。 ’、 该微調齒輪纟且9 ? 4人 卜卜 桿蜗輪d 弟二蜗桿蝎輪組27、-第三蜗 墙- ' 及—镟調桿29。該第二蝸桿蝸輪組27包含— -蜗輪272及_第二螞桿27卜且其速比為i :⑼。 二蜗桿蜗輪組28包含一第三蜗輪282及-第三蜗桿281， 速2亦為1 . 6〇。該微調桿29之一端連接該第二蝸桿 以π動4第二蜗桿271旋轉，進而驅動該第二蜗輪奶 轉動。該第二蝸輪272係與該第三蜗桿281同軸旋轉，藉 此即可推動該第三蜗輪282轉動’而該第三蜗輪加則帶 第方疋轉軸31同軸旋轉。根據上述之配置，該 細99夕、古，丨、上 ™ 、、、之速比為 1 ·· 3600(可由（1/60)χ (1/6〇)=1/36〇〇 求得）。 因此L當微調桿29旋轉一圈（36〇度）時，該第一旋轉軸 相田於轉動0.1度，故該微調齒輪組22可提供〇· 1产之 調整精度。 該粗調桿26及微調桿29分別設有定位環34及％，其 在凋正後可旋緊以固定該粗調桿26及微調桿29，以防止 差發生。 於本κ施例中，該第二、第三齒輪組丨7、1 8之基本結構 H:\Hu\tys\ 台揚科技中說\89433.doc 1259613 均實質相同於第一齒輪組16，其差異僅在裝設之方 其旋轉軸31、32、33之軸向），故關於第二及第三齒輪組 1 7、1 8之細部構造描述，在此加以省略。 本實施例係制三组結構實f相同之齒輪組進行說明， 以彰顯本發明利用三齒輪組針對碟型天線於三抽向進 正之技衡特徵’且可藉由相同之齒輪組規格以降低製造成 本。然實際上各齒輪組之速比及内部構造並不加以限定， 舉凡不同速比之齒輪組、或如斜齒輪（bevelgear)、齒桿 (rack)及螺旋齒輪（heIlealgear)等其他齒輪件所組^ 亦可依不同的需求加以使用。 本發明之技術内容及技術特點巳揭示如上，然而孰来本 項技術之人士仍可能基於本發明之教示及揭示而作種種不 背離本發明精神之替換及修飾。因此，本發明之保護範圍 應不限於實施例所揭示者’而應包括各種不背離本發明之 替換及修飾，並為以下之申請專利範圍所涵蓋。 五、圖式簡單說明 本發明將依照後附圖式加以說明，其中： 圖1及2顯示本發明之碟型天線調整裂置之應用示意圖； 圖3及4顯示本發明之碟型天線調整裝置之齒輪組之示 思圖；以及 圖5及6例示本發明之碟型天線調整裝置之齒輪組之结 構。 岡...... 22 微調齒輪組 六、元件符號說明 21 粗調齒輪組 H:\Hu\tys\ 台揚科技中說\89433 d〇c 1259613 24 第一蝸桿蝸輪組 25 正齒輪組 26 粗調桿 27 第二蜗桿蜗輪組 28 第三蝸桿蝸輪組 29 微調桿 31 第一旋轉軸 241 第一蝸桿 242 第 一媧輪 251 第一正齒輪 252 第 二正齒輪 271 第二蝸桿 272 第 -^虫局 281 第三蝸桿 282 第 三蜗輪 H:\Hu\tys\台揚科技中說\89433.doc - 10 -BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dish type antenna adjusting apparatus, and more particularly to a dish type antenna adjusting apparatus which is adjusted by a gear set. 2. The principle of the prior art satellite antenna receiving satellite television programs is to use satellite antennas to collect weak satellite signals and reflect the satellite signals to low noise downconverters installed at the focus of the dish (chsh) (i 〇wn〇ise converter, LNB). The low noise down-converter then amplifies the concentrated signal and reduces the frequency to an intermediate frequency of around 1 GHz, and then transmits it to the indoor selector via an electrical gauge. The channel selector selects the channel to be viewed in the signal, and after being amplified and demodulated into image and voice signals, the television can be input to play the program. The dish antenna is a highly directional receiving antenna that accurately aligns the center of the dish antenna with a satellite that is over 36,000 kilometers. Take a satellite signal dish with a diameter of one hundred and eighty centimeters as an example. If the position of the dish antenna is moved to the left of the original position by two centimeters or the elevation angle is adjusted by three centimeters from the original point, the signal will be weakened. It even disappeared. When the dish antenna uses the Ka band (26-40 GHz), the accuracy of the azimuth must be adjusted to the specifications of the work, and the error must not exceed 〇〇2 degrees to accurately align the transmitting satellite. Currently used in the Ka-band dish antenna is mainly controlled by a programmable logic controller (PLC) to control the servo motor. But its cost is expensive, and the process of greatly limiting its popularity R \ Hu \ tys \ Tai Yang Technology said he 433. doc 1259613 degrees. SUMMARY OF THE INVENTION An object of the present invention is to provide a dish antenna adjusting device which can adjust the pointing angle of a dish antenna according to three axial directions and which can meet the accuracy requirement of the Ka band. Further, the present invention can reduce the manufacturing cost by using a gear set instead of a conventional PLC controller and a servo motor. To achieve the above object, the present invention discloses a dish antenna adjusting apparatus including first, second, and third gear sets. The first gear set includes a first one of the rotating shafts for adjusting the disk surface angle of the dished antenna. The second gear set includes a second axis of rotation about perpendicular to the first axis of rotation for adjustment. The elevation angle of the hai dish. The third gear set includes a second rotation axis that is perpendicular to the second square rotation axis for adjusting the rotation angle of the dish antenna. Each of the above gear sets includes a coarse adjustment gear set and a fine adjustment gear set, which can achieve an adjustment accuracy of 1 and 1 degree. In practical applications, the gear members constituting the coarse adjustment #wheel set and the fine adjustment gear set are not limited, and the following yoke example will be described by taking a spur gear group and a worm wheel worm (wheeKW0rm) group as an example. IV. Embodiments Fig. 1 is a schematic view showing the application of the dish antenna adjusting device of the present invention, and Fig. 2 is a view of the other angle. -Disc antenna device 1〇Includes a dish antenna=two poles 12:-disc holder 13 , one dish antenna is fixed at 15° and the branch is 15° § hai dish antenna 11 and downconverter rod 12 Surface solid surface mount °. The dish antenna adjustment skirt 14 is connected to the monument branch 15 for adjusting the pointing angle of the dish antenna (10). The platform is said to be 259613 °. The dish antenna adjustment device I4 is made by - A - Gears 17 and a first to recognize two, two, two, two - two second gear set 18 constitutes. The first gear set 16 includes an antenna ul-like sound for connecting the dish mount 13 and adjusting the disc type 2 division 0 and =, Zhuo/', which is adjusted according to the x-axis rotation shown in FIG. The W wheel set 17 is connected to the first gear set to include one of the flutes and the disc-return set 18, and the angle of rotation m 32 adjusts the pitch of the dish antenna η to be adjusted according to the y-axis. . The first group (1p group 17 and the bracket core can be == connected = second gear to adjust the rotation angle of the dish antenna U, that is, according to the shaft 33, the second and third gear sets 16, 17 and 8 are = turn (four) but A is "..." and 18 is the same structure, and the angle between them is about 9 degrees, that is, the first, second and second rotary axes 31, 32 And the axial phase of the 33rd phase is produced by the 目umu, 90 degrees, so that the dish antenna 11 has the function of rotating and adjusting along the x'y and z axes. Day = the amplification of the first gear set 16 Schematic, diagram-angle view. The first gear, group 16 includes, in addition, a coarse tuning gear set 21 2 疋 from 31 long-running gear set 22. = and Figure 6 illustrates the coarse gear set 21 and fine-tuning gear set Γ 2 positive =. The coarse-tuning gear set 21 includes a ----wheel 24, ^, ^ coarse adjustment lever 26. The first-worm worm _ and 24 includes a first worm gear 242 and _ and brother a worm 24 丨 and its speed ratio (Π 120. The spur gear set 25 includes a first spur gear (5) and a first spur gear 252, and the 讳屮 此, this ratio is 20:60 (in this embodiment) In the example, the number of teeth is 6 0 tooth and 20 tooth). The second spur gear 252 is coaxial with the H:\Hu\tys\Taiyang technology said \89433 doc Ϊ 259613 a worm wheel 242 coaxial rotation, rotating 铋 ^ turn brother a spur gear 251 system to drive The first 241 is moved. The end of the coarse adjustment lever 26 is connected to the mast wheel set 2 =: ?41 rotation. According to the above configuration, the coarse adjustment tooth r X · 360 C^T^(20/60) x (1/120) = 1/360 ^ : a. Therefore, when the coarse adjustment lever 26 rotates one revolution (36 degrees), the rotary shaft 31 is equivalent to 1 degree of rotation, so the coarse adjustment gear set 21 can be provided! The adjustment accuracy of the degree. ', the fine-tuning gear 纟 and 9 ? 4 people 卜 杆 d 二 蜗 worm worm wheel set 27, - the third volute wall - ' and - 镟 adjustment bar 29. The second worm gear set 27 includes - a worm wheel 272 and a second amp 27 and its speed ratio is i: (9). The second worm gear set 28 includes a third worm wheel 282 and a third worm 281, and the speed 2 is also 1.6. One end of the fine adjustment lever 29 is connected to the second worm to rotate the second worm 271, thereby driving the second worm wheel to rotate. The second worm wheel 272 is coaxially rotated with the third worm 281, This can push the third worm wheel 282 to rotate ' And the third worm wheel is rotated coaxially with the first yoke shaft 31. According to the above configuration, the speed ratio of the fine 99, the old, the 丨, the upper TM, and the is 1·· 3600 (may be (1/60) χ (1/6〇)=1/36〇〇). Therefore, when the fine adjustment lever 29 rotates one revolution (36 degrees), the first rotation axis is rotated by 0.1 degrees, so the fine adjustment gear set 22 It can provide adjustment accuracy of 〇·1 production. The coarse adjustment lever 26 and the fine adjustment lever 29 are respectively provided with positioning rings 34 and %, which can be tightened after being used to fix the coarse adjustment lever 26 and the fine adjustment lever 29 to prevent the occurrence of a difference. In the κ embodiment, the basic structure of the second and third gear sets 丨7, 18 is H:\Hu\tys\, and the platform of the board is \89333.doc 1259613 is substantially the same as the first gear set 16, The difference is only in the axial direction of the rotating shafts 31, 32, and 33 of the mounting side. Therefore, the detailed structural descriptions of the second and third gear sets 17 and 18 are omitted here. In this embodiment, three sets of gear sets having the same structure and the same structure are described to demonstrate that the present invention utilizes the three-gear set for the three-pitch correcting technical feature of the dish antenna and can be reduced by the same gear set specification. manufacturing cost. In fact, the speed ratio and internal structure of each gear set are not limited. For gear sets with different speed ratios, or other gear parts such as bevelgear, rack and heleleagear ^ Can also be used according to different needs. The technical content and technical features of the present invention are disclosed above, but those skilled in the art can still make various substitutions and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is not to be construed as limited by the scope of BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be described in accordance with the following drawings, wherein: Figures 1 and 2 show schematic views of the application of the dish-shaped antenna of the present invention; Figures 3 and 4 show the dish-type antenna adjusting device of the present invention. The figure of the gear set; and Figs. 5 and 6 illustrate the structure of the gear set of the dish antenna adjusting device of the present invention.冈...... 22 Fine-tuning gear set VI, component symbol description 21 Coarse gear group H:\Hu\tys\ Taiyang technology said \89433 d〇c 1259613 24 First worm gear set 25 spur gear set 26 Coarse adjustment lever 27 Second worm worm gear set 28 Third worm worm gear set 29 Fine adjustment lever 31 First rotation shaft 241 First worm 242 First 娲 wheel 251 First spur gear 252 Second spur gear 271 Second worm 272 No. - ^Insect Bureau 281 Third Worm 282 Third Worm Wheel H:\Hu\tys\Taiyang Technology says \89433.doc - 10 -