201122283 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種齒輪傳動裝置。 【先前技術】 [0002] 齒輪傳動裝置之齒輪之輪齒之間相互嚙合。為保證齒輪 之輪齒正常潤滑及避免因工作溫度升高而引起卡死現象 ，齒輪之間設有一定量之間隙。於輕負荷、扭矩變化大 時、加速或減速時，齒輪之正反工作面交替變化，齒輪 之間之間隙就會偏大而引起敲擊，從而增大齒輪之間之 衝擊力和雜音。 [0003] —種齒輪傳動裝置，其包括齒輪箱、設於齒輪箱内之第 一齒輪、與第一齒輪相嚙合之第二齒輪及間隙調節機構 。間隙調節裝置用於調節第一齒輪與第二齒輪之間之間 隙。該間隙調節機構包括可轉動地固定於該齒輪箱内壁 之固定支架、壓縮彈簧及可滑動地安裝於固定支架上之 滑架。該第一齒輪之轉軸穿設該滑架。該壓縮彈簧設於 該滑架與固定支架之間。該固定支架上開設有滑槽。該 滑架上開設有與該滑槽相配合之肋條。該肋條沿該滑槽 滑動，使該滑架相對於該固定支架僅沿一方向滑動。該 壓縮彈簧抵壓滑架，滑架朝向第二齒輪滑動，使第一齒 輪與第二齒輪之間之中心距減小，從而達到減小第一齒 輪與第二齒輪之間之間隙之目的。 [0004] 然，上述齒輪傳動裝置若需調節第一齒輪與第二齒輪之 間之間隙時，需先打開齒輪箱，再調節彈簧之壓縮量， 從而調節第一齒輪與第二齒輪間隙。故，上述齒輪傳動 098144046 表單編號A0101 第4頁/共16頁 0982075387-0 201122283 [0005] [0006] Ο [0007] 〇 [0008] [0009] 裝置調節間隙較為繁瑣。 【發明内容】 鑒於上述狀況，有必要提供一種可方便調節齒輪間隙之 齒輪傳動裝置。 一種齒輪傳動裝置，其包括齒輪箱及收容於齒輪箱内之 第一齒輪、與第一齒輪相嚙合之第二齒輪及間隙調節機 構，間隙調節機構包括穿設齒輪箱之鎖固件及抵持於鎖 固件與第一齒輪之轉轴端部之間之彈性件，第一齒輪及 第二齒輪件為圓錐齒輪，於齒輪箱之外部藉由鎖固件調 節該彈性件之彈性變量，從而調節第一齒輪與第二齒輪 之間之間隙。 上述齒輪傳動裝置無需打開齒輪箱就可藉由該鎖固件調 節該彈性件之彈性變量，進而調節該第一齒輪與第二齒 輪之間之間隙，故，上述齒輪傳動裝置調節齒輪間隙較 方便。 \ 【實施方式】 下面結合附圖及實施方式對本發明之齒輪傳動裝置作進 一步詳細說明。 請參閱圖1至圖3，本發明較佳實施方式之齒輪傳動裝置 100包括齒輪箱10、第一齒輪20、第二齒輪30、間隙調 節機構40、第三齒輪50、第四齒輪60、驅動件70及輸出 轴80。第一齒輪20、第二齒輪30、間隙調節機構40、第 三齒輪50及第四齒輪60均收容於齒輪箱10内。輸出軸80 可轉動穿設該齒輪箱10。第二齒輪30與輸出軸80固定連 098144046 表單編號Α0101 第5頁/共16頁 0982075387-0 201122283 接。第一齒輪20與第二齒輪30相互嚙合。第三齒輪50與 第四齒輪60相互嚙合。驅動件70固定於齒輪箱10之外側 壁上。第四齒輪60枢接於驅動件70。間隙調節機構40用 於調節第一齒輪20與第三齒輪50之間之間隙。 [0010] 齒輪箱10包括箱體11及封閉箱體11之蓋體13。驅動件70 固定於蓋體13上。輸出軸80可轉動穿設該箱體11。箱體 11上設有軸承12。蓋體13上對應於該軸承12開設有調節 螺孔131。蓋體13之内侧還設有軸承132(請參閱圖2)。 當蓋體13固定於箱體11上時，箱體11之軸承12與蓋體13 之軸承132相對應。 [0011] 第一齒輪20為圓錐齒輪，其軸心設有轉軸21。轉軸21可 轉動地穿設齒輪箱10之軸承12。轉軸21靠近該第一齒輪 20之大頭端之端面上開設有收容孔212。收容孔212為盲 孔。轉軸21靠近該第一齒輪20之大頭端之側面設有定位 凸起213。 [0012] 第二齒輪30為與第一齒輪20相配合之圓錐齒輪，其中部 開設有圓形之軸孔31。第二齒輪30之最大外徑大於第一 齒輪20之最大外徑。 [0013] 間隙調節機構40包括定位件41、彈性件42及鎖固件43。 定位件41及彈性件42依次收容於第一齒輪20之轉轴21之 收容孔212内。鎖固件43穿設該齒輪箱10之蓋體13，且 與彈性件42相抵持。具體於本實施方式中，定位件41為 定位導向鋼球，彈性件42為圓柱形之壓縮彈簧，鎖固件 43為收容於蓋體13之調節螺孔131内之調節螺絲，彈性件 098144046 表單編號A0101 第6頁/共16頁 0982( 201122283 [0014] [0015]Ο [0016] ❹ 098144046 4 2套设於定位件41上，鎖固件4 3之頭部開設有調節孔 4 31，利用螺絲刀（圖未示）等工具可調節該鎖固件4 3於齒 輪箱10之調節螺孔131令之螺合位置。 第二齒輪50上開設有圓形之轴孔51及位於該軸孔51之邊 緣之定位槽53。第一齒輪20之轉轴21穿設該軸孔51，定 位凸起213與定位槽53相配合，以使該第三齒輪50帶動該 第一齒輪20轉動。 請參閱圖2，驅動件70為馬達，其包括驅動軸71。驅動輪 71穿設齒輪箱10之蓋體13。第四齒輪非可轉動套設於 驅動件70之驅動抽Ή上。 請同時參閱圖1、圖2及圖4，組裝齒輪傳動裝置1〇〇時， 首先’將輸出軸80穿設齒輪箱1〇之箱體η。然後，將第 二齒輪30固定於輸出轴8〇上。接著，將第一齒輪2〇之轉 軸21穿設齒輪箱1〇之箱體u之轴承12，同時與第二齒輪 30相互嚙合。接著，將第三齒輪5〇套設於第一齒輪2〇之 轉轴21上’且使第一齒輪2〇之轉轴？!之定位凸起213與 第三齒輪50之定位槽53相配合，從而使第一齒輪2〇隨第 三齒輪50一起轉動。接著，將間隙調節機構40之定位件 41及彈性件42依次收容於第一齒輪2〇之轉軸21之收容孔 211内。接著，驅動件7〇之驅動轴71穿設齒輪箱10之蓋 體13，且驅動件70固定於齒輪箱1〇之蓋體13之外側壁上 。接著，將第四齒輪6〇非可轉動套設於驅動件7〇之驅動 轴71上。接著，將齒輪箱10之箱體11與蓋體13固定連接 起來，同時，使第—齒輪20之轉軸21可轉動穿設齒輪箱 10之蓋體13之轴承132。最後將間隙調節機構4〇之鎖 表單編號A0101 第7頁/共16頁 0982075387-0 201122283 固件43與齒輪箱10之蓋體13之調節螺孔131螺合。 [0017] 調節第一齒輪2 0與第二齒輪3 〇之間之間隙時，使用螺絲 刀等工具於齒輪箱10之外部，藉由間隙調節機構40之鎖 固件43調整彈性件42之彈性變量，由於第一齒輪20與第 二齒輪30為圓錐齒輪而成斜向抵持，故彈性件42之彈性 變量與第一齒輪*20與第二齒輪30之間之間隙量成線形關 係。具體於本實施方式中，該彈性件42每壓縮1毫米，則 可調整第一齒輪20與第二齒輪3〇之間之間隙量為〇. 05毫 米。故’本發明之齒輪傳動裝置1〇〇可於其外部較方便且 精確調節其齒輪間隙。 [0018] 可理解，間隙調節機構40之定位件41不限於定位導向鋼 珠，其亦可為其他結構，例如，形成於第一齒輪2〇之轉 軸21之收容孔212底部之定位凸柱。彈性件42不限於圓柱 形彈簧，其亦可為其他結構，例如，碟形彈簧、碟形彈 片等。鎖SI件43不限於調_螺絲，其亦可為其他結構， 例如，穿設齒輪箱10之蓋體13之螺柱等。第—齒輪2〇之 收容孔亦可開設於料21靠近該第—齒輪2G之小頭部之 一端之端面上’此時，側膝卩機構40之雜件42為拉 伸彈簧。 [0019] 綜上所述’本發明確已符合發料利之要件，遂依法提 出專财請。惟，以上所述者僅為本發明之較佳實施方 式，自不能以此限制本案之巾請專利範圍。舉凡熟悉本 案技藝之人士援依本發明之精神所作之等效修飾或變化 ，皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 098144046 表單編號A0101 第8頁/共16頁 0982075387-0 201122283 [0020] 圖1係本發明之齒輪傳動裝置之立體分解圖。 [0021] 圖2係圖1所示之齒輪傳動裝置之另一視角之立體分解圖 〇 [0022] 圖3係圖1所示之齒輪傳動裝置之組裝後之立體示意圖。 [0023] 圖4係沿圖3中IV-IV方向之剖面示意圖。 【主要元件符號說明】 [0024] 齒輪傳動裝置100 [0025] 〇 齒輪箱10 [0026] 箱體11 [0027] 軸承12、132 [0028] 蓋體13 [0029] 調節螺孔131 [0030] 第一齒輪20 〇 _ 轉軸21 [0032] 收容孔212、211 [0033] 定位凸起213 [0034] 第二齒輪30 [0035] 軸孔31 [0036] 調節機構40 [0037] 定位件41 098144046 表單編號A0101 第9頁/共16頁 0982075387-0 201122283 [0038] 彈性件 42 [0039] 鎖固件 43 [0040] 調節孔 431 [0041] 第三齒輪50 [0042] 該軸孔 51 [0043] 定位槽 53 [0044] 第四齒輪60 [0045] 驅動件 70 [0046] 驅動軸 71 [0047] m a ψΜ 80 098144046 表單編號A0101 第10頁/共16頁 0982075387-0201122283 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a gear transmission. [Prior Art] [0002] The gear teeth of the gear transmission mesh with each other. In order to ensure the normal lubrication of the gear teeth and avoid the jam caused by the rising working temperature, a certain amount of clearance is provided between the gears. When the light load, the torque changes greatly, or accelerates or decelerates, the positive and negative working faces of the gear alternately change, and the gap between the gears is too large to cause knocking, thereby increasing the impact force and noise between the gears. A gear transmission includes a gearbox, a first gear disposed in the gearbox, a second gear meshing with the first gear, and a clearance adjustment mechanism. The gap adjusting device is for adjusting a gap between the first gear and the second gear. The gap adjusting mechanism includes a fixing bracket rotatably fixed to an inner wall of the gear case, a compression spring, and a carriage slidably mounted on the fixing bracket. The rotating shaft of the first gear passes through the carriage. The compression spring is disposed between the carriage and the fixed bracket. A sliding slot is formed on the fixing bracket. A rib that cooperates with the chute is opened on the carriage. The rib slides along the chute such that the carriage slides in only one direction relative to the fixed bracket. The compression spring abuts against the carriage, and the carriage slides toward the second gear to reduce the center distance between the first gear and the second gear, thereby reducing the gap between the first gear and the second gear. [0004] However, if the gear transmission device needs to adjust the gap between the first gear and the second gear, the gear box needs to be opened first, and then the compression amount of the spring is adjusted to adjust the gap between the first gear and the second gear. Therefore, the above-mentioned gear transmission 098144046 Form No. A0101 Page 4 of 16 0982075387-0 201122283 [0005] [0007] [0008] [0008] The device adjustment gap is cumbersome. SUMMARY OF THE INVENTION In view of the above circumstances, it is necessary to provide a gear transmission that can easily adjust the gear gap. A gear transmission device includes a gear box and a first gear housed in the gear box, a second gear meshing with the first gear, and a gap adjusting mechanism, wherein the gap adjusting mechanism includes a fastener that penetrates the gear box and is resisted by An elastic member between the locking member and the end portion of the rotating shaft of the first gear, the first gear and the second gear member are bevel gears, and the elastic variable of the elastic member is adjusted by the fastener on the outside of the gear box, thereby adjusting the first The gap between the gear and the second gear. The gear transmission device can adjust the elastic variable of the elastic member by the fastener without opening the gear box, thereby adjusting the gap between the first gear and the second gear. Therefore, the gear transmission device is convenient for adjusting the gear gap. [Embodiment] The gear transmission of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. 1 to 3, a gear transmission 100 according to a preferred embodiment of the present invention includes a gearbox 10, a first gear 20, a second gear 30, a gap adjustment mechanism 40, a third gear 50, a fourth gear 60, and a drive. 70 and output shaft 80. The first gear 20, the second gear 30, the gap adjusting mechanism 40, the third gear 50, and the fourth gear 60 are housed in the gear case 10. The output shaft 80 is rotatably threaded through the gearbox 10. The second gear 30 is fixedly coupled to the output shaft 80. 098144046 Form No. Α0101 Page 5 of 16 0982075387-0 201122283 The first gear 20 and the second gear 30 mesh with each other. The third gear 50 and the fourth gear 60 mesh with each other. The driving member 70 is fixed to the outer side wall of the gear case 10. The fourth gear 60 is pivotally connected to the driving member 70. The gap adjusting mechanism 40 is for adjusting a gap between the first gear 20 and the third gear 50. [0010] The gearbox 10 includes a case 11 and a cover 13 that closes the case 11. The driving member 70 is fixed to the cover body 13. The output shaft 80 is rotatably inserted through the casing 11. A bearing 12 is provided on the casing 11. An adjustment screw hole 131 is formed in the cover 13 corresponding to the bearing 12. A bearing 132 is also provided on the inner side of the cover 13 (see Fig. 2). When the cover 13 is fixed to the casing 11, the bearing 12 of the casing 11 corresponds to the bearing 132 of the cover 13. [0011] The first gear 20 is a bevel gear, and its shaft center is provided with a rotating shaft 21. The rotary shaft 21 rotatably penetrates the bearing 12 of the gear case 10. A receiving hole 212 is defined in an end surface of the rotating shaft 21 adjacent to the large end of the first gear 20. The receiving hole 212 is a blind hole. A positioning projection 213 is provided on a side of the rotating shaft 21 near the large end of the first gear 20. [0012] The second gear 30 is a bevel gear that cooperates with the first gear 20, and a circular shaft hole 31 is formed in a middle portion thereof. The maximum outer diameter of the second gear 30 is greater than the maximum outer diameter of the first gear 20. [0013] The gap adjustment mechanism 40 includes a positioning member 41, an elastic member 42, and a lock 43. The positioning member 41 and the elastic member 42 are sequentially received in the receiving holes 212 of the rotating shaft 21 of the first gear 20. The lock member 43 is passed through the cover 13 of the gear case 10 and is abutted against the elastic member 42. Specifically, in the embodiment, the positioning member 41 is a positioning guide steel ball, the elastic member 42 is a cylindrical compression spring, and the locking member 43 is an adjusting screw received in the adjusting screw hole 131 of the cover body 13, the elastic member 098144046 form number A0101 Page 6 / Total 16 pages 0892 ( 201122283 [0014] [0015] 00 098144046 4 2 is set on the positioning member 41, the head of the locking member 43 is provided with an adjusting hole 4 31, using a screwdriver ( The tool can adjust the screwing position of the locking screw 43 to the adjusting screw hole 131 of the gear box 10. The second gear 50 is provided with a circular shaft hole 51 and an edge of the shaft hole 51. The positioning groove 53. The rotating shaft 21 of the first gear 20 passes through the shaft hole 51, and the positioning protrusion 213 cooperates with the positioning groove 53 to cause the third gear 50 to rotate the first gear 20. Referring to FIG. 2, The driving member 70 is a motor, and includes a driving shaft 71. The driving wheel 71 is disposed through the cover 13 of the gear box 10. The fourth gear is non-rotatably sleeved on the driving twitch of the driving member 70. Please refer to FIG. 2 and Fig. 4, when assembling the gear transmission 1 ,, firstly, the output shaft 80 is threaded through the gear box 1 Then, the second gear 30 is fixed to the output shaft 8〇. Then, the rotating shaft 21 of the first gear 2 is bored through the bearing 12 of the casing u of the gear box 1 while being combined with the second gear 30. Engage each other. Then, the third gear 5〇 is sleeved on the rotating shaft 21 of the first gear 2〇 and the positioning of the positioning protrusion 213 and the third gear 50 of the rotating shaft of the first gear 2 is fixed. The groove 53 is matched to rotate the first gear 2 to rotate with the third gear 50. Then, the positioning member 41 and the elastic member 42 of the gap adjusting mechanism 40 are sequentially received in the receiving hole 211 of the rotating shaft 21 of the first gear 2 Then, the driving shaft 71 of the driving member 7 is bored with the cover 13 of the gear box 10, and the driving member 70 is fixed to the outer wall of the cover 13 of the gear box 1. Next, the fourth gear 6 is not The housing 11 of the gearbox 10 is fixedly coupled to the cover 13 and the rotating shaft 21 of the first gear 20 is rotatably inserted through the gearbox 10. The bearing 132 of the cover body 13. Finally, the gap adjustment mechanism 4 〇 lock form number A0101 page 7 / a total of 16 pages 0992075387 -0 201122283 The firmware 43 is screwed into the adjustment screw hole 131 of the cover 13 of the gear case 10. [0017] When adjusting the gap between the first gear 20 and the second gear 3, a tool such as a screwdriver is used for the gearbox 10 The elastic variable of the elastic member 42 is adjusted by the lock member 43 of the gap adjusting mechanism 40. Since the first gear 20 and the second gear 30 are obliquely biased by the bevel gear, the elastic variable of the elastic member 42 and the The gap between a gear *20 and the second gear 30 is linearly related. Specifically, in this embodiment, the amount of the gap between the first gear 20 and the second gear 3〇 is 〇. 05 mm. Therefore, the gear transmission 1 of the present invention can adjust the gear gap thereof more conveniently and accurately on the outside thereof. [0018] It can be understood that the positioning member 41 of the gap adjusting mechanism 40 is not limited to the positioning guide ball, and may be other structures, for example, a positioning protrusion formed at the bottom of the receiving hole 212 of the rotating shaft 21 of the first gear 2〇. The elastic member 42 is not limited to a cylindrical spring, and may be other structures such as a disc spring, a disk spring, or the like. The lock SI member 43 is not limited to the adjustment screw, and may be other structures, for example, a stud or the like that pierces the cover 13 of the gear case 10. The receiving hole of the first gear 2 can also be opened on the end surface of the material 21 near the end of the small head of the first gear 2G. At this time, the miscellaneous member 42 of the side knee mechanism 40 is a tension spring. [0019] In summary, the present invention has indeed met the requirements for the delivery of the materials, and the special funds are required according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a gear transmission of the present invention. [0020] FIG. 2 is a perspective exploded view of another perspective view of the gear transmission shown in FIG. 1. [0022] FIG. 3 is a perspective view of the assembled gear transmission of FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3. [Main Component Symbol Description] [0024] Gear Transmission 100 [0025] 〇 Gear Box 10 [0026] Housing 11 [0027] Bearing 12, 132 [0028] Cover 13 [0029] Adjustment Screw Hole 131 [0030] a gear 20 〇 _ shaft 21 [0032] receiving hole 212, 211 [0033] positioning protrusion 213 [0034] second gear 30 [0035] shaft hole 31 [0036] adjustment mechanism 40 [0037] positioning member 41 098144046 form number A0101 Page 9 / Total 16 page 0992075387-0 201122283 [0038] Elastic member 42 [0039] Locking member 43 [0040] Adjustment hole 431 [0041] Third gear 50 [0042] The shaft hole 51 [0043] The positioning groove 53 [0044] Fourth Gear 60 [0045] Drive 70 [0046] Drive Shaft 71 [0047] ma ψΜ 80 098144046 Form No. A0101 Page 10 / Total 16 Page 0982075387-0