M306283 八、新型說明： 【新型所屬之技術領域】 本創作係涉及一種氣動工具馬達，尤指一種改良引導 氣流構造而使軸承更加耐久的改良封蓋的氣動馬達。 【先前技術】 既有的氣動馬達結構如公開編號第200626802號「氣 動馬達效能之提昇結構」發明專利案，該種氣動馬達主要 • 係設有一汽缸，於汽缸兩側結合兩分別將汽缸封閉的前、 後盍，前、後蓋各穿設一軸孔並於内部分別嵌設一軸承， 汽缸内並設有一樞設於兩軸承之間的轉子。 ^ 上述氣動馬達的前、後蓋由於各設有一軸孔，因此當 亂動馬達作動時，不可避免的，汽缸内的氣體會經由兩軸 处的缝隙向外流出，當氣流由軸孔流經軸承向外浅出 I氣机^將轴承内的潤滑油帶走，造成各軸承内的滑油 I法保持濕潤，使用的耐久性大幅下降而使氣動馬達需要 % 拆裝修理。 為改善上述問題，某些氣動馬達上增設了導引氣流的 構造，往♦尹" 其+明4看第七圖，圖中所示係一種既有的氣動馬達， N ( 6 0 )的兩側各結合一封蓋（6 1 )，封蓋（6 各設有一底板（6 i i )，各底板（6丄丄）於中央 穿言免一桌4 ( 〔6 1 2 )，並朝外伸設一軸承座（6 1 3 )， Τ =座（6 1 3 )内嵌設-軸承（6 2 )，底板（6 1 於軸孔（6 1 2 )周圍的外面相鄰處凹設一環凹口（ 6 ;底板（6 1 1 )並沿徑向由外向内鑽設一透氣 M306283 孔（615)，久讀备a 透氧孔（6 1 5)的内端與各凹口（6 1 4)相通，藉此’由透氣孔（6 1 5)將氣流導引向外， 不會通過各軸承（6 2 )。 料氣動馬達雖然可“透氣孔（6 i 5)將氣體導 ° <一由於其透氣孔（6 1 5 )係沿底板（6 1 1 ) 的徑向鑽設，因昝盈π — t .. r 吏仔底板（611)的厚度需要設置為 李父厚的型態，不利於汽 、動馬達的小型化，因此在利用上仍 有舄要加以改良之處。 【新型内容】 妄氣動馬達内部的氣流會造成所設轴承的使用 導^^馬達的1_呆持滑潤的狀態，本創作 出曰：且广構造的技術手段，使氣流不經軸承向外流 體η導氣流的構造較不佔空間，讓本創作的 夠小型化的同時，還能夠達到延長袖承壽命的目 達，t =述目的’本創作提供一種改良封蓋的氣動馬 兩分別二二：汽紅、兩分別結合於該汽缸兩側的封蓋、 設於兩二 =蓋的轴承’以及一設置於該汽虹内並柩 八叩玎盖之間的轉子，其中·· 各封蓋係設有一底板，各底板結 轉子穿讯一紅π 々、°哀，飞虹並配合該 °又一軸孔，各底板於各軸孔周圍朝外 狀的軸承座，夂虹^ 1 ϋ。又形成一 j衣 於轴孔月圍的：形成一圓形的嵌槽，各嵌槽底面 軸孔周圍的相鄰部分形成一環凹口 各轴承座之間斜向穿設一透氣孔，各透底板與 虱孔與各凹口相 M306283 通； 軸承係嵌設於各軸承座的嵌槽内； 石亥轉子係位於兩封芸門 、 釕息之間亚设有複數個葉片，該轉子 为別以兩端樞穿各軸孔以及各軸承。 較佳的’各轴承座於肉用 於内周面的底緣分別形成一環溝 槽’於各溝槽與所述各凹 、、士 、 合凹口之間由所述各嵌槽的底面形成 一、凹溝，所述各透氣孔的内端係與各溝槽相通。 本創作使用時，係由外朝汽缸内引入具有壓力的氣 體，以壓力氣體推動轉子轉動對外作工，t氣流由各封蓋 的軸孔縫隙朝外流出時，流出的氣流會由各軸孔經凹口， 再由與凹口相通的各透氣孔流出。 本創作藉由上述的氣流導引構造，使氣流不會經由各 軸承向外流出，使得軸承保持濕潤而具有較長的壽命，達 J長久使用的功放。並且由於各透氣孔係斜向穿設於各封 蓋的底板與軸承座之間，如此構造較不μ空間而可將底板 設為較薄的狀態’使整體的體積可以縮小，達到體積小型 化的功效。 【實施方式】 本創作係一種改良封蓋的氣動馬達，請參看第一至五 圖的第一較佳實施例，其係包括一汽缸（i 〇 )、兩分別 結合於汽缸（1 〇)兩側的封蓋（2 0)、兩分別嵌設於 各封蓋（2 0 )的軸承（3 〇 )，以及一設置於汽缸（工 〇)内並樞設於兩封蓋（2〇)之間的轉子（4〇)，其 中： M306283 汽缸（1 ο)係具有頂端以及底端的圓形環體，其於 周面並穿設一進氣孔（1 1)以及一排氣流道（i 2 )。 兩封蓋（2 0 )係上、下對稱並分別結合於汽缸（工 〇 )的頂緣以及底緣，各封蓋（2 〇 )設有一底板（2 i )， 各底板（2 1 )係圓形板體並結合於汽缸（i 〇 )將汽缸 (1 〇 )封閉，各底板（2 1 )配合轉子（4 〇 )於中心 穿設一圓形的軸孔（2 1 1 );M306283 VIII. New description: [New technical field] This creation relates to a pneumatic tool motor, especially a modified air motor with improved airflow structure to make the bearing more durable. [Prior Art] The existing air motor structure is disclosed in the invention patent No. 200626802 "Pneumatic motor performance lifting structure". The air motor mainly includes a cylinder, and the cylinders are closed on both sides of the cylinder. The front and rear jaws are respectively provided with a shaft hole and a bearing is embedded therein, and a rotor pivoted between the two bearings is arranged in the cylinder. ^ The front and rear covers of the above air motor are each provided with a shaft hole. Therefore, when the tampering motor is actuated, it is unavoidable that the gas in the cylinder will flow outward through the gap between the two shafts, when the air flow flows through the shaft hole. The bearing is shallower out of the I gas machine ^The lubricating oil in the bearing is taken away, so that the oil in the bearing is kept wet, and the durability of the use is greatly reduced, so that the air motor needs to be disassembled and repaired. In order to improve the above problems, some air motors have a structure for guiding the airflow. To the ♦ Yin " its + Ming 4 look at the seventh figure, the figure shows an existing air motor, N (60) A cover (6 1 ) is attached to each side, and the cover (6 is provided with a bottom plate (6 ii ), and each bottom plate (6 丄丄) is worn at the center to avoid a table 4 ([6 1 2 ), and is facing outward A bearing seat (6 1 3 ) is extended, and a bearing (6 2 ) is embedded in the seat (6 1 3 ), and a bottom plate (6 1 is recessed adjacent to the outer side around the shaft hole (6 1 2 )) a notch (6; bottom plate (6 1 1) and a gas-permeable M306283 hole (615) is drilled radially outward from the inside, and the inner end of each oxygen-permeable hole (6 15) and each notch (6 1) are read for a long time. 4) Connected, whereby the airflow is guided outwards by the venting holes (6 1 5) and does not pass through the bearings (6 2 ). Although the pneumatic motor can “ventilate the holes (6 i 5) to guide the gas < Because the venting hole (6 1 5) is drilled along the radial direction of the bottom plate (6 1 1 ), the thickness of the bottom plate (611) of the π-t.. r 需要 需要 需要 需要 需要 需要 需要 需要 需要 需要 需要 611 State is not conducive to the miniaturization of steam and moving motors, so it is utilized. There are some areas to be improved. [New content] 气流The air flow inside the air motor will cause the use of the bearing to be used. The 1_ staying and slipping state of the motor is a technical means of wide construction. The structure that makes the airflow not flow through the bearing outward fluid η is less space-consuming, so that the miniaturization of the creation can achieve the purpose of extending the life of the sleeve, t = the purpose of the present invention provides an improved seal The pneumatic horses of the cover are respectively two or two: steam red, two caps respectively coupled to the two sides of the cylinder, bearings disposed on the two two=caps, and one disposed between the steam and the clamshell The rotor, wherein each cover is provided with a bottom plate, the bottom plate of the bottom plate is connected with a red π 々, a sorrow, a flying rainbow and cooperates with the other axis hole, and the bottom plate is outwardly oriented around the shaft holes. , 夂虹^ 1 ϋ. Also formed a j clothing in the shaft hole of the circumference: forming a circular groove, the adjacent portion around the bottom hole of each groove forming a ring notch between each bearing seat obliquely Having a venting hole, each through the bottom plate and the boring hole and each notch phase M30628 3-way; the bearing system is embedded in the groove of each bearing seat; the Shihai rotor system is located between the two doors and the suffocation, and there are a plurality of blades, and the rotor is pivoted through the shaft holes at both ends and Preferably, each of the bearing seats is formed with a ring groove at the bottom edge of the inner circumferential surface of the meat, and each of the grooves and the recesses, the pockets, and the recesses are formed by the respective slots. The bottom surface is formed with a groove, and the inner end of each of the venting holes is in communication with each groove. In the present application, a gas having pressure is introduced from the outside into the cylinder, and the rotor is rotated by the pressurized gas to work outside. When the t airflow flows out from the slot hole of each cover, the outflowing airflow passes through the notches through the shaft holes, and then flows out through the vent holes communicating with the notches. According to the air flow guiding structure described above, the airflow does not flow outward through the respective bearings, so that the bearing is kept moist and has a long life, and the power amplifier that has been used for a long time. Moreover, since the venting holes are obliquely disposed between the bottom plate of each cover and the bearing housing, the structure is less than μ space, and the bottom plate can be set to a thinner state, so that the overall volume can be reduced, and the volume can be miniaturized. The effect. [Embodiment] The present invention is an air motor with improved cover. Please refer to the first preferred embodiment of the first to fifth figures, which includes a cylinder (i 〇) and two cylinders (1 〇) respectively. a cover (20) on the side, two bearings (3 〇) respectively embedded in each cover (20), and a piston (2) disposed in the cylinder and disposed on the two covers (2〇) The rotor (4〇), wherein: M306283 cylinder (1 ο) is a circular ring body having a top end and a bottom end, and is provided with an air inlet hole (1 1) and an exhaust gas flow passage (i) on the circumferential surface. 2 ). The two covers (20) are vertically and symmetrically coupled to the top edge and the bottom edge of the cylinder (worker), and each cover (2 〇) is provided with a bottom plate (2 i ), and each bottom plate (2 1 ) is a circular plate body is coupled to the cylinder (i 〇) to close the cylinder (1 〇), and each bottom plate (2 1 ) cooperates with the rotor (4 〇) to form a circular shaft hole (2 1 1 ) at the center;
各底板（2 1 )於各軸孔（2 1 1 )周圍的外面朝外 垂直凸設形成一圓環狀的軸承座（2 2 )，各軸承座（2 2)内形成一圓形的嵌槽（221)，各嵌槽（221) 底面於各軸孔（2 1 1 )周圍的相鄰部分形成一環圓形的 凹口（ 2 1 2 )，各軸承座（2 2 )内周面的底緣凹設形 成％圓形的溝槽（222)，於各凹口（212)與各 溝槽（2 2 2 )之間，於各嵌槽（2 2 ；[)的底面形成一 '' 、冓（213) ’各凹溝（213)的兩端分別與各凹 口（ 2 1 2 )以及各溝槽（2 2 2 )相通； 各封蓋於底板（2 1 )與軸承座（2 2 )之間斜向穿 °又透氣孔（2 3 )，各透氣孔（2 3 )的内端與各溝槽 (222)相通，各透氣孔（23)並位於各溝槽（22 2 )與凹溝（2 1 3 )連接位置的相反處，藉此，各透氣 孔（2 3 )經由各溝槽（2 2 2 )以及凹溝（2 1 3 )而 （ 2 1 2 )相通，由軸孔（2 1 1 )處導引氣流。 各軸承（3 0 )係圓形軸承並嵌設固定於各封蓋（2 〇 )輛承座（2 2 )的嵌槽（2 2 1 )内。 M306283 轉子（40)係位於兩封蓋（2〇)之間 設複數個葉片（41)，轉+(4〇)於轴心位設有 LH’ f軸"2)係圓桿體並分別以兩端樞穿各 轴孔（2 1 1 )以及各軸承（3 〇 )。 本創作使用時如第五圖所示係裝設於一氣動工具（$ 〇)内使用，並請配合參看第二至四圖的第—較佳實施例， 當由進氣孔（11)朝汽紅（1〇)内弓丨入氣流，以壓力 耽體推動轉子（4◦)的葉片（41)轉動，再以主軸（4 2) 輸出動力時，由於汽缸（1〇)内具有較大的壓力， 因此氣流會由各封M(20)的軸孔（211)縫隙朝外 流出，流出的氣流會流經各凹口（ 2工2 )經凹溝（2工 3) 後流至溝槽（2 2 2 )處，再由溝槽（2 2 2 )流動 180度後由各封蓋（2〇)的透氣孔（23)，由透氣孔（2 3)向外流出，藉由上述的氣流導引構造，使氣流不會經 由各軸承（3 0 )向外流出，使各㈣（3 〇 )保持滑潤 而具有較長的壽命。 並且由於本創作的各透氣孔（2 3 )係斜向穿設於各 封蓋（20)，構造較不佔空間而可將底fe(2l)設為 較薄的狀態，使得本創作整體的體積可藉此小型化。 請參看第六圖的第二較佳實施例，其係改良第一較佳 實，例中各封蓋的形狀。在第二較佳實施例中，各改良的 封蓋（2 Q A )未設有溝槽以及凹溝，各封蓋（2 〇 a ) 並於所述底板（2 1 A )與軸承座（2 2 A )之間穿設一 透氣孔（2 3 A )，各透氣孔的内端直接與各凹口（ 2丄 M306283 2 A )相通。由於第二較佳實施例其餘部分皆與第一較佳 實施例相同，故不在此贅述。 上述第二較佳實施例使用時，同樣係由各透氣孔（2 3 A )將各凹口 （ 2 1 2 A )處的氣流向外引出，以斜穿 且與凹π ( 2 1 2 A ) 4目通的透氣孔（2 3 A )達到保持 軸承（3 0 )濕、潤的效果，並可縮小封蓋（2 〇 a )底板 (2 1 A )的體積而達到使本創作整體的體積小型化的功 效0 【圖式簡單說明】 第一圖係本創作第一 第二圖係本創作第一 第三圖係本創作第一 圖。 較佳實施例之立體圖。 車父佳實施例之分解圖。 較佳實施例封蓋配合軸承之剖面 :四圖係本創作第一較佳實施例封蓋之俯視剖面圖。 :五=本創作第一較佳實施例裳設 體不意圖。 八、儿 第六圖係、本創作第二較佳實施例 第七圖係既有氣動馬達之側視部分剖二面圖 【主要兀件符號說明】Each of the bottom plates (2 1 ) is vertically protruded outwardly from the outer periphery of each of the shaft holes ( 2 1 1 ) to form an annular bearing seat (2 2 ), and a circular groove is formed in each bearing seat (22). (221), the bottom surface of each of the cavities (221) forms a circular circular recess (2 1 2 ) in an adjacent portion around each of the shaft holes (2 1 1 ), and the bottom surface of each inner side of each bearing housing (2 2 ) The edge is recessed to form a groove (222) of a circular shape, and between each notch (212) and each groove (2 2 2 ), a '' is formed on the bottom surface of each of the grooves (2 2 ; [),冓(213) 'The two ends of each groove (213) are respectively communicated with each notch (2 1 2 ) and each groove (2 2 2 ); each cover is on the bottom plate (2 1 ) and the bearing seat (2 2 Between the obliquely permeable and venting holes (23), the inner ends of the venting holes (23) communicate with the respective grooves (222), and the venting holes (23) are located in the respective grooves (22 2 ) and The groove (2 1 3 ) is connected to the opposite position, whereby each of the vent holes (2 3 ) communicates with each other (2 2 2 ) and the groove (2 1 3 ) (2 1 2 ) by the shaft The air flow is directed at the hole (2 1 1 ). Each bearing (30) is a circular bearing and is embedded in a recess (2 2 1 ) of each cover (2 2 ). M306283 The rotor (40) is provided with a plurality of blades (41) between the two covers (2〇), and the rotation +(4〇) is provided with the LH' f-axis "2) round bar body at the axial center and respectively The shaft holes (2 1 1 ) and the bearings (3 〇) are pivoted at both ends. This creation is used as shown in the fifth figure in a pneumatic tool ($ 〇), and please refer to the first to fourth embodiment of the preferred embodiment, when the air inlet (11) is facing The steam red (1〇) inner bow breaks into the airflow, pushes the rotor (4◦)'s blades (41) with the pressure body, and then outputs the power to the main shaft (4 2), because the cylinder (1〇) has a larger The pressure, so the airflow will flow out from the gap of the shaft hole (211) of each M (20), and the outflow will flow through the notches (2 work 2) through the groove (2 work 3) and then flow to the ditch. At the groove (2 2 2 ), the groove (2 2 2 ) flows 180 degrees, and then the vent hole (23) of each cover (2〇) flows out from the vent hole (23), by the above The air flow guiding structure prevents the airflow from flowing outward through the bearings (30), so that each (4) (3 〇) remains smooth and has a long life. Moreover, since each vent hole (23) of the present invention is obliquely disposed on each cover (20), the structure is less space-consuming, and the bottom fe(2l) can be set to a thinner state, so that the whole creation is The volume can be miniaturized by this. Referring to the second preferred embodiment of the sixth embodiment, the shape of each cover in the first preferred embodiment is modified. In the second preferred embodiment, each modified cover (2 QA ) is not provided with a groove and a groove, and each cover (2 〇a ) is attached to the bottom plate (2 1 A ) and the bearing seat (2) 2 A) is provided with a venting hole (2 3 A ), and the inner end of each venting hole is directly communicated with each notch (2丄M306283 2 A ). Since the rest of the second preferred embodiment is the same as the first preferred embodiment, it will not be described herein. When the second preferred embodiment is used, the airflow at each notch (2 1 2 A ) is also outwardly drawn by each venting hole (2 3 A ) to obliquely penetrate and be concave π ( 2 1 2 A The venting hole of the 4 mesh (2 3 A) achieves the effect of keeping the bearing (30) wet and moist, and can reduce the volume of the bottom plate (2 1 A) of the cover (2 Aa) to achieve the overall creation of the present The effect of volume miniaturization 0 [Simple description of the diagram] The first picture is the first and second picture of this creation. The first and third pictures of this creation are the first picture of this creation. A perspective view of a preferred embodiment. An exploded view of the car master embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A cross-section of a cap-fit bearing: FIG. 4 is a top cross-sectional view of the cap of the first preferred embodiment of the present invention. : V = The first preferred embodiment of the present invention is not intended. Eighth, the sixth figure, the second preferred embodiment of the present invention The seventh figure is a side view of the side view of the air motor. [Main element description]
1 )進氣孔 〇 )封蓋 1 )底板 1 1 )軸孔 1 2 A )凹口 (1 0 )汽缸 (1 2 )排氣流道 (2 0 A )封蓋 (2 1 A )底板 (2 1 2 )凹口 M3062831) Inlet hole 〇) Cover 1) Base plate 1 1) Shaft hole 1 2 A) Notch (1 0) Cylinder (1 2 ) Exhaust flow path (20 A) Cover (2 1 A) Base plate ( 2 1 2 ) Notch M306283
(2 1 3 )凹溝 (2 2 A )轴承座 (2 2 2 )溝槽 (2 3 A )透氣孔 (4 0 )轉子 (4 2 )主軸 (6 0 )汽缸 (6 1 1 )底板 (6 1 3 )軸承座 (6 1 5 )透氣孔 (2 2 )軸承座 (2 2 1 )嵌槽 (2 3 )透氣孔 (3 0 )軸承 (41)葉片 (5 0 )氣動工具 (6 1 )封蓋 (6 1 2 )軸孔 (6 1 4 )凹口 (6 2 )軸承(2 1 3 ) Groove (2 2 A ) Housing (2 2 2 ) Groove (2 3 A ) Venting Hole (4 0 ) Rotor (4 2 ) Spindle (60) Cylinder (6 1 1) Base Plate ( 6 1 3 ) Housing (6 1 5 ) Ventilation hole (2 2 ) Housing (2 2 1 ) Insert groove (2 3 ) Ventilation hole (3 0 ) Bearing (41) Blade (5 0 ) Pneumatic tool (6 1 ) cover (6 1 2) shaft hole (6 1 4 ) notch (6 2 ) bearing