201210754 六、發明說明： 【發明所屬之技術領域】 本發明猶_-魏動I具，__於—種氣動工具 中之氣動馬達。 【先前技術】 習知之氣動卫具係利用氣動馬達帶動卫具轉動，再利用工 具帶動工件轉動或進行其他加工作業，如服9_4號專利 所述’即為一種氣動扳手。 其中，此類氣動工具所使用之氣動馬達為供高壓氣體驅動 轉動，係設置有進氣流道與排氣流道，利用進氣流道供輸入高 壓氣體，以高壓氣體帶動氣動馬達内的轉子轉動後，再將高壓 氣體自排氣流道排出，進氣流道與排氣流道之間的氣體移動路 徑即為高壓氣體推動轉子轉動的動力行程，而此動力行程受氣 動馬達的結構限制，為固定的氣體移動路徑，如欲提升氣動馬 達的輸出功率，則需提高所使用高壓氣體的氣體壓力或提高氣 動馬達的進氣量。 —此外，另有翻彻扮附與TW2_侧所述者係 於2缸開設有數個排氣孔，可供使用者切換以其中一個或一組 排氣孔進行排氣’藉以控制延長或縮短高屢氣體推動轉子的動 '亍孝長度彳改邊氣動馬達的輸出功率’然而此種氣動馬達 不僅流道及結構較為複雜，於生產時，尚需對開設之多個孔洞 進行定位，形歧產不易的問題。 201210754 【發明内容】 本明之主要目的在於提供一種氣動馬達，可以同樣壓力 的尚壓氣體源，獲得較大的輸出功率。 為達成上述目的，本發明提供一種氣動工具之氣動馬達， 包括有-轉子與—控糊。該汽缸圍構有—氣室，該汽缸圍構 有二氣體通道、-概孔與二，該二氣體通道、該排氣孔 及其中至少一軸孔連通於該氣室與外部空間之間，其中另一軸 孔與該氣室相連通，該二軸孔_。該轉子容設於該氣室，該 轉子穿設於該二軸孔，該轉子可轉動地設於該汽缸。其中，該 二氣體通道其巾-者供接收高壓氣體，使賴氣體導流至該氣 至後帶動該轉子轉動，並使高壓氣體自該排氣孔向外輸出，定 義-圓周方向係環繞於該轉子，該排氣孔沿該圓周方向延伸， 該排氣孔具有-第-端與―第二端，該二氣體通道沿該圓周方 向排列。該控綱包括有—塊體’該塊體可相對該汽虹移動， 忒塊體蓋合於一部份排氣孔，該塊體將該排氣孔區分為一封閉 區與一開放區，該開放區供氣體流通，該塊體可於一第一位置 與-第二位置之_動，該塊體移動至該第—位置時該開放區 位於該第-端，該·義至該第二位置時·賴位於該第 二端。 藉此’本發明所提供之氣動馬達可供調整，令高壓氣體於 汽紅内推動轉子移練長的距離後才自排氣孔之開放區排 出’可延長T%壓氣體推動轉子的時顺路徑，可糊同一高壓 201210754 氣體源獲得較高的輸出功率。 【實施方式】 以下僅以實施例說明本發明可能之實施態樣，然並非用以 限制本發明所欲保護之範疇，合先敘明。 請參考圖1至圖6，本發明提供—種氣動工具，包括有一 殼體卜-控制閥組2、—氣動馬達與—工具組4。 該殼體1可由-第-外殼n與一第二外殼12組合形成， 使該殼體1圍構有一進氣槽13、一馬達容室14、一工具容室 15與-排氣槽16，以供農設本發日月中其他部件，其中該馬達 谷室14連接於該進氣槽13與該工具容室15，該排氣槽16與 該馬達容$ 14相連通，該排氣槽16可位於該馬達容室14遠 離該進氣槽13的一側。 該控制閥組2設於該進氣槽π，可供以該控制閥組2連 接一高壓氣體源，以該控制閥組2控制高壓氣體自該高壓氣體 源進入該進氣槽13，其中，該控制閥組2可能包括有扳機組 21與流量控制閥22，以供使用者進行操控。 該氣動馬達容設於該馬達容室14，並與該殼體1相互固 定’其中’該氣動馬達包括有一汽缸31、一轉子32與一控制 閥33 〇 該汽缸31可由一第一部份311與一第二部分312組合而 成，使該汽缸31圍構有一氣室313,並圍構有二氣體通道314、 一排氣孔315與二軸孔316，該二氣體通道314、該排氣孔315 201210754 及該二轴孔316、316’各連通於該氣室313與外部空間之間， 該二氣體通道314可供控制閥組2將高壓氣體輸入，該控制閥 組2供控制令高壓氣體進入其中一氣體通道314，該排氣孔315 與該排氣槽16相連通，該二軸孔316、316，同軸。於本發明其 他可能的實施例中，亦可令其中一軸孔316，未貫穿汽缸31， 使其中一軸孔316’僅連通於該氣室。 §亥轉子32谷設於該氣室313，並穿設於該二轴孔316 ' 316’’使該轉子32可轉動地設於該汽缸31，其中如圖4所示， 該轉子32可包括有一心軸321、複數葉片322及數量與葉片 相對應之彈性件323，該些葉片322及彈性件323嵌入於該心 軸321 ’並可相對該心軸321於徑向方向上滑動，使該轉子％ 可受高壓氣體帶動哺動。定義―關方向’棚周方向環繞 於該轉子32，如g 5所示，該排氣孔315沿該圓周方向延伸 而具有一定長度，該排氣孔315具有一第一端317與一第二端 318，該二氣體通道314並沿該圓周方向排列。當高壓氣體進 入該二氣體通道314其中-者後，該汽缸31可使高壓氣體導 流至該氣室313並帶動該轉子32轉動，隨後使高壓氣體自該 排氣孔315向外輸出。 該控制閥33包含一塊體33卜該塊體331蓋合於該排氣 孔315並可相對該汽缸31移動，該塊體331可略小於該排氣 孔315，使該塊體331將該排氣孔315區分為一封閉區與一開 放區’該開放區可供氣體流通，該封閉區則可阻擔氣體進出排 201210754 氣孔315，較佳者，可於該塊體331環設一墊圈，避免氣體任 意洩漏。該塊體331可相對該汽缸於第一位置與第二位置之間 移動，如圖6所示，該塊體331移動至該第一位置時抵靠於第 二端，使該開放區位於該第一端317，相對地，該塊體331移 動至該第二位置時抵靠於該第—端317，該開放區則位於第二 端。 其中，為帶動該塊體331移動，該控制閥33可另包含有 一罩體332、一轉閥333與一旋鈕334。該罩體332固設於該 汽缸31，該轉閥333夾設於該罩體332與該汽缸31之間，該 轉閥333並可設有多個滾珠’以減少該轉閥333與罩體332或 汽缸31之間的摩擦力，該塊體331可一體成型或組裝於該轉 閥333，令該塊體331固定於該轉閥333，該轉閥333具有一 軸部335並可繞該軸部335轉動，該轉閥333轉動時可帶動該 塊體331於該第-位置與該第二位置之間移動。該轴部奶形 成有多脉，該旋紐334形成有多角形孔，使該旋紐334固設 於該軸部335並與該轴部335成轉動連動關係。藉此，該旋鈕 334可供轉動，帶動軸部335與轉閥333轉動，進一步帶動塊 體331於第一位置與第二位置之間移動。 請參考圖7，本發明另-實施例巾，亦可改將該塊體331 滑設於汽缸，於該塊體331遠離氣室313的〜側形成齒排现， 另於該氣動馬達包括一齒輪34，該齒輪34襄設於該^體i， 該齒輪34具有-輪軸’該齒輪34可繞該輪輪轉動，以該齒輪 201210754 34與該齒排336唾合，可供轉動該齒輪％，帶動該塊體33i 移動。 該工具組4餘設賤4容室15，並可姆該殼體】 轉動’該工具組4可具有-凸伸於殼體j外之工具頭4i，以 供將該工具頭41連接或卡合於—轉紅具。該工具組*與 該轉子32卡合祕_子32成_連動_。於本發明其他201210754 VI. Description of the Invention: [Technical Field of the Invention] The present invention is a pneumatic motor in a pneumatic tool. [Prior Art] The conventional pneumatic pedestal uses a pneumatic motor to drive the rotation of the keeper, and then uses the tool to drive the workpiece to rotate or perform other processing operations, as described in the patent No. 9_4, which is an air wrench. Among them, the pneumatic motor used in such a pneumatic tool is driven by high-pressure gas, and is provided with an intake flow passage and an exhaust flow passage, and an intake air passage is used for inputting high-pressure gas, and the high-pressure gas drives the rotor in the air motor. After the rotation, the high-pressure gas is discharged from the exhaust runner, and the gas moving path between the intake runner and the exhaust runner is the power stroke of the high-pressure gas to drive the rotor, and the power stroke is limited by the structure of the air motor. For a fixed gas moving path, if you want to increase the output power of the air motor, you need to increase the gas pressure of the high pressure gas used or increase the air intake of the air motor. - In addition, there is a cloaking and TW2_ side. The two cylinders are provided with a plurality of vent holes for the user to switch to exhaust one or a group of vents to control the extension or shortening. The high-frequency gas pushes the rotor's dynamic '亍孝 length tampering with the output power of the air motor'. However, this type of air motor not only has a complicated flow path and structure, but also needs to locate a plurality of holes to be opened during production. It is not easy to produce. 201210754 SUMMARY OF THE INVENTION The main object of the present invention is to provide a pneumatic motor that can obtain a large output power from a pressurized gas source of the same pressure. To achieve the above object, the present invention provides a pneumatic motor for a pneumatic tool comprising a rotor and a control paste. The cylinder is surrounded by a gas chamber, and the cylinder is surrounded by two gas passages, a plurality of gas passages, and the two gas passages, the exhaust hole and at least one of the shaft holes communicate with the air chamber and the outer space, wherein Another shaft hole is in communication with the air chamber, the two shaft holes _. The rotor is disposed in the air chamber, and the rotor is disposed in the two shaft holes, and the rotor is rotatably disposed on the cylinder. Wherein, the two gas passages are for receiving high-pressure gas, and the gas is led to the gas to drive the rotor to rotate, and the high-pressure gas is outputted from the exhaust hole, and the definition-circumferential direction is surrounded by In the rotor, the vent hole extends in the circumferential direction, and the vent hole has a first end and a second end, and the two gas passages are arranged along the circumferential direction. The control unit includes a block body that is movable relative to the steam rainbow, and the block body is covered by a portion of the exhaust hole, and the block body divides the exhaust hole into a closed area and an open area. The open area is for gas circulation, and the block is movable in a first position and a second position, and when the block moves to the first position, the open area is located at the first end, and the The second position is located at the second end. Therefore, the air motor provided by the invention can be adjusted, so that the high pressure gas can be driven from the open area of the exhaust hole after pushing the rotor for a long distance in the steam red, which can extend the time of the T% pressure gas to push the rotor. The path can be pasteed to the same high voltage 201210754 gas source to achieve higher output power. [Embodiment] The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the present invention. Referring to Figures 1 through 6, the present invention provides a pneumatic tool comprising a housing-control valve set 2, a pneumatic motor and a tool set 4. The housing 1 can be formed by combining a first housing n and a second housing 12, such that the housing 1 defines an air inlet 13 , a motor housing 14 , a tool chamber 15 and an exhaust slot 16 . For the other parts of the day and month of the present invention, the motor valley chamber 14 is connected to the air inlet groove 13 and the tool chamber 15, and the exhaust groove 16 communicates with the motor capacity $14, the exhaust groove 16 may be located on a side of the motor compartment 14 that is remote from the intake slot 13. The control valve group 2 is disposed in the air inlet slot π, and the control valve group 2 is connected to a high-pressure gas source, and the control valve group 2 controls the high-pressure gas to enter the air inlet slot 13 from the high-pressure gas source, wherein The control valve block 2 may include a wrench unit 21 and a flow control valve 22 for manipulation by a user. The air motor is accommodated in the motor chamber 14 and is fixed to the housing 1 'wherein the air motor includes a cylinder 31, a rotor 32 and a control valve 33. The cylinder 31 can be a first portion 311 Combined with a second portion 312, the cylinder 31 encloses a gas chamber 313 and is configured with two gas passages 314, an exhaust hole 315 and two shaft holes 316, and the two gas passages 314 and the exhaust gas. The hole 315 201210754 and the two shaft holes 316, 316' are respectively connected between the air chamber 313 and the external space, the two gas passages 314 are used for the control valve group 2 to input high pressure gas, and the control valve group 2 is used for controlling the high pressure. The gas enters one of the gas passages 314, and the venting opening 315 is in communication with the venting groove 16, the two axial holes 316, 316 being coaxial. In other possible embodiments of the present invention, one of the shaft holes 316 may not be penetrated through the cylinder 31 such that one of the shaft holes 316' communicates only with the air chamber. The rotor 32 is disposed in the air chamber 313 and is disposed in the two-axis hole 316 '316'' to rotatably mount the rotor 32 to the cylinder 31. The rotor 32 may include the same as shown in FIG. There is a mandrel 321 , a plurality of blades 322 and a plurality of elastic members 323 corresponding to the blades. The blades 322 and the elastic members 323 are embedded in the mandrel 321 ′ and are slidable relative to the mandrel 321 in a radial direction. The rotor % can be driven by high pressure gas. The definition "off direction" surrounds the rotor 32 in the circumferential direction. As shown by g5, the venting opening 315 extends along the circumferential direction to have a length. The venting opening 315 has a first end 317 and a second end. The end 318, the two gas passages 314 are arranged in the circumferential direction. When high pressure gas enters the two gas passages 314, the cylinder 31 can conduct high pressure gas to the gas chamber 313 and drive the rotor 32 to rotate, and then the high pressure gas is outputted outward from the exhaust hole 315. The control valve 33 includes a body 33 that covers the vent 315 and is movable relative to the cylinder 31. The block 331 may be slightly smaller than the vent 315, so that the block 331 will The air hole 315 is divided into a closed area and an open area, wherein the open area can be used for gas circulation, and the closed area can block the gas inlet and outlet of the 201210754 air hole 315. Preferably, a gasket can be arranged around the block 331. Avoid any gas leakage. The block 331 is movable relative to the cylinder between the first position and the second position. As shown in FIG. 6, when the block 331 moves to the first position, it abuts against the second end, so that the open area is located at the second end. The first end 317 is opposite to the first end 317 when the block 331 is moved to the second position, and the open area is located at the second end. In order to drive the block 331 to move, the control valve 33 may further include a cover 332, a rotary valve 333 and a knob 334. The cover 332 is fixed to the cylinder 31. The rotary valve 333 is interposed between the cover 332 and the cylinder 31. The rotary valve 333 can be provided with a plurality of balls ′ to reduce the rotary valve 333 and the cover. 334 or the friction between the cylinders 31, the block 331 can be integrally formed or assembled to the rotary valve 333, and the block 331 is fixed to the rotary valve 333. The rotary valve 333 has a shaft portion 335 and can be wound around the shaft The portion 335 rotates, and when the rotary valve 333 rotates, the block 331 can be moved between the first position and the second position. The shaft portion is formed with a plurality of veins, and the knob 334 is formed with a polygonal hole, and the knob 334 is fixed to the shaft portion 335 in a rotationally interlocking relationship with the shaft portion 335. Thereby, the knob 334 is rotatable, and the shaft portion 335 and the rotary valve 333 are rotated to further move the block 331 between the first position and the second position. Referring to FIG. 7, in another embodiment of the present invention, the block 331 can be slidably disposed on the cylinder, and the block 331 is formed away from the side of the air chamber 313, and the air motor includes a a gear 34, the gear 34 is disposed on the body i, the gear 34 has an axle about which the gear 34 is rotatable, and the gear 201210754 34 is sprinkled with the tooth row 336 for rotating the gear % , the block 33i is moved. The tool set 4 is provided with a chamber 4, and the housing can be rotated. The tool set 4 can have a tool head 4i protruding from the outside of the housing j for connecting or inserting the tool head 41. In conjunction with - turn red. The tool set* is engaged with the rotor 32 by a secret _ sub-32 _ linkage _. Other in the invention
可能實施财，亦可將該1具_換為其他形式供帶動轉動使 用之工具組。 利用上述裝置，請參考 △ "* ^ ， 使高壓氣體經過控制闕組進入其中—氣體通道314，再進入氣 室’利用高觀體推動葉請，令心軸321轉動，再使高壓 細排氣孔315之開放區排出，其中，如圖8所示，當高壓 乳體推動心轴321逆時針運轉時，可將塊體別移動至第一位 2使開放區位於第_端317，可延長高壓氣體移動至開放區 2移動_離，提高高壓氣體推動葉片322的移動行程，而 使轉子獲得較大的動力。 絲上所述’本發明利用塊體别供使用者調 壓氣體於氣動馬達内長冋 斤旦_ 、他，而可提〶本發明對高壓氣體 I提高氣動工具的輸出功率，實為具有 早::法規定之專利要件，爰依法提起專利申請， 巧早曰核予專利，實感德便。 201210754 【圖式簡單說明】 圖1為本發明中氣動工具之立體圖。 圖2為本發明中氣動工具之局部剖面圖。 圖3為本發明中氣動工具之局部分解圖。 圖4為本發明中氣動馬達之立體分解圖。 圖5為圖4之A-A剖面圖。 圖6為本發明中氣動工具之剖面示意圖。 圖7為本發明另一實施例之立體示意圖。 _ 圖8為本發明中氣動馬達之動作示意圖。 【主要元件符號說明】 317 :第一端 318 :第二端 32 :轉子 321 :心軸 322:葉片 · 323 :彈性件 33 :控制閥 331 :塊體 332 :罩體 333 :轉閥 334 :旋紐 335 :軸部 1 :殼體 11 :第一外殼 12 :第二外殼 13 :進氣槽 14 :馬達容室 15 :工具容室 16 :排氣槽 2 :控制閥組 21 :扳機組 22 :流量控制閥 31 :汽缸 311 :第一部份 10 201210754 312 :第二部份 313 :氣室 314 :氣體通道 315 :排氣孔 316、316’ ：軸孔 336 :齒排 34 :齒輪 4 :工具組 41 :工具頭It is possible to implement the money, and it is also possible to change the one to another type of tool set for driving. Using the above device, please refer to △ "* ^ to make the high-pressure gas enter the gas channel 314 through the control group, and then enter the gas chamber. Use the high-view body to push the leaf, rotate the mandrel 321 and then make the high-pressure fine row. The open area of the air hole 315 is discharged, wherein, as shown in FIG. 8, when the high pressure emulsion pushes the mandrel 321 counterclockwise, the block body can be moved to the first position 2 so that the open area is located at the _th end 317. Extending the movement of the high pressure gas to the open zone 2, the high pressure gas pushes the moving stroke of the blade 322, and the rotor obtains a larger power. According to the above description, the invention utilizes the block body for the user to regulate the gas in the air motor, and can improve the output power of the pneumatic tool for the high pressure gas I. :: The patent requirements stipulated by the law, the patent application is filed according to law, and the patent is issued as soon as possible. 201210754 [Simplified illustration of the drawings] Fig. 1 is a perspective view of a pneumatic tool of the present invention. Figure 2 is a partial cross-sectional view of the pneumatic tool of the present invention. Figure 3 is a partially exploded view of the pneumatic tool of the present invention. Figure 4 is an exploded perspective view of the air motor of the present invention. Figure 5 is a cross-sectional view taken along line A-A of Figure 4; Figure 6 is a schematic cross-sectional view of a pneumatic tool of the present invention. Figure 7 is a perspective view of another embodiment of the present invention. Figure 8 is a schematic view of the operation of the air motor in the present invention. [Main component symbol description] 317: First end 318: Second end 32: Rotor 321: Mandrel 322: Blade · 323: Elastic member 33: Control valve 331: Block 332: Cover 333: Rotary valve 334: Rotate New 335: Shaft portion 1: Housing 11: First outer casing 12: Second outer casing 13: Air intake groove 14: Motor chamber 15: Tool chamber 16: Exhaust tank 2: Control valve group 21: Pull unit 22: Flow control valve 31: cylinder 311: first part 10 201210754 312: second part 313: plenum 314: gas passage 315: venting holes 316, 316': shaft hole 336: tooth row 34: gear 4: tool Group 41: Tool head
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