497322 經濟部智慧財產局員工消費合作社印製 311527 A7 B7 五、發明說明G ) [發明領域] 本發明係有關具備設有將被挖掘物挖掘成環狀之鑽頭 之圓筒形空心鑽頭之挖掘裝置。 [先行技術] 以往用以補強已建構好的混凝土牆壁之方法，有如下 述之方法：首先在牆壁上挖第一大開口，於此挖穿之開口 >部設置鐵製支撐（對角支撐），其次，以混凝土對配設於此 支撐及配設於開口部内周面之錨定件加以固定，藉此補強 壁全體之方法。此時，錨定件藉由收容於設在開口部内周 面之孔而配設。 用來配設此錦定件之孔係如第8圖所示，於圓筒狀構 件前端設有金剛石、超硬尖片等製成之圓環狀鑽頭8(^之 空心鑽頭80，以及用來使此空心鑽頭8〇繞軸線旋轉之電 動機81之裝置形成。 I 亦即’藉由一面將設於空心鑽頭80前端之鑽頭80a 抵接於被挖掘物，即混凝土，一面旋轉，一面形成圓柱形 柱體（core)83，然後自混凝土 82内部拔出鑽頭8〇。 繼之，將殘留於混凝土 82内部之柱體83之根頭83a 折斷’而後將其拔出，形成例如直徑2〇mm(毫米）至35inm 程度，深度200mm程度之錨定件配設用孔。 然而，此時有如下述之情形。自混凝土 82拔出此空心 鐵頭80時，根頭83a折斷而使成圓柱形柱體83敌住於空 〜鑽頭80之筒狀内部連同空心鑽頭，一齊拔出之情形。 _:此清幵/下’難以自空心鑽頭80内部取出柱體83， 桃張尺麟用f關家辟（CNS_U4祕（2^^^- ^--------t---------^ (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（2 ) 會有導致作業性低下之問題。 進一步在對此種混凝土 8 開孔時’空心鑽頭8 0必須 產生高轉矩，同時必須作成 _ /頁 合匆文供粍扣空心鑽頭80 之構造。 又’由於上述電動機81經由齒輪傳動 油壓馬達等一樣，有重量極重， ，、力機 里搜董，插作性欠佳，復立，嗓音 亦大（90dB以上）之問題，並 I且即使灰轉數在高速下亦只 有約1500rpm，就算是特殊雷 田 亏沐電動馬達，最高亦在3000至 3900rpm程度’因此，有穿孔時間會拉長之問題。 且，藉超音波穿孔之超音波穿孔裝置固然可在較低噪 音下穿孔，惟相反地，會右i空 玲有具穿孔速度緩慢，仍會帶來作 業期間拖長之問題。 因此’本發明之目的在於提供一種可產生高轉矩、旋 轉數，短時間内穿孔，同時可容易更換耗損之空心鑽頭， 並且，柱體不易嵌住於空心鑽頭之低噪音挖掘裝置。 [發明摘要] 本發明挖掘裝置係具備設有時被挖掘物挖掘成環狀之 鑽頭之圓筒形空心鑽頭，以及使此空心鑽頭旋轉之中空型 馬達者，其特徵在於，前述中空型馬達具備可貫通設置前 述空心鑽頭之筒狀轉子，設於此轉子外周之圓筒形定子， 以及固疋配設於此轉子之筒形内部之前述空心鑽頭外周 面’而隨著前述轉子之旋轉而使此空心鑽頭旋轉之固定 部。 因此，貫通轉子之筒狀内部而藉與此轉子一體連結之 --------------------訂---------' (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 2 311527 497322 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（ 固定部固定之空心鑽頭直接承受轉子之旋轉。亦即，由於 轉子之旋轉經由固定部直接傳輸至空心鑽頭，故空心鑽頭 可產生咼轉矩。復由於其係轉子之旋轉經由固定部直接傳 輸至空心鑽頭之—構造，無需齒輪等構件，故發生的噪音減 低。進一步由於以固定部固定空心鑽頭外周面之構造，故 只要解除此固定部之固定，即可解除空心鑽頭之固持，由 於容易進行空心鑽頭之更換維修作業，故可提高作業性。 進一步由於空心鑽頭可更換，故可選擇種種厚度'刀具形 狀。 復由於中空型馬達係直接使具有鑽頭之空心鑽頭旋轉 之高剛性直接型馬達，故旋轉軸，即空心鑽頭之振動極小， 藉此，可高速旋轉、穿孔，較諸習知低速穿孔情形，可大 幅提高其穿孔速度。 藉此，可迅速進行開孔加工，可求得具有開孔作業之 各種施工作業之工期短縮化。 復由於使用直接型馬達，故較諸使用動力機、油壓馬 達或附齒輪之電‘馬達情形，可大幅（大約70dB程度）減低 嗓音，又由於零件數少，故亦可大幅減低維修作業所耗勞 力。 又’本發明挖掘裝置係具備設有將被挖掘物挖掘成環 狀之鑽頭之圓筒狀空心鑽頭，以及使此空心鑽頭旋轉之中 空型馬達者，其特徵在於，前述中空型馬達具有在前端部 貫通安裝有前述空 心 鑽頭之圓筒形旋轉軸之筒形轉子，設 於此轉子外周之圓筒形定子，以及連結於前述旋轉軸後端 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 311527 -----------I I -----I--^--------- (請先閱讀背面之注意事項再填寫本頁) 497322 A7 _ B7 五、發明說明（4 ) 部成為可轉動，而且，形成有將自冷卻供給源供給之冷卻 液導入前述旋轉軸内之流路之旋轉連接器（rotary joint)， 經由前述旋轉連接器，而將冷卻液送入與前述轉子一齊旋 轉之前述旋轉轴之貫通孔内，並使該冷卻液自前述旋轉軸 後端側沿前述貫通孔内周向前端側流動，藉由此流動之冷 卻液，進行不用冷卻風扇之冷卻。 因此，一面自插通並貫通轉子之旋轉軸後端部並經由 旋轉連接器，將自冷卻液供給源供給之冷卻液送入旋轉軸 之貫通孔内，一面使旋轉轴旋轉，以空心鑽頭之鑽頭挖掘 被挖掘物，使自後端部送入之冷卻液沿旋轉軸之貫通孔内 周面流動，藉此，經由旋轉軸吸收中空型馬達内部之熱， 使中空型馬達内部冷卻良好。 亦即，由於直接使安裝空心鑽頭之旋轉轴旋轉的所謂 直接型馬達，故可旋轉轴高速旋轉，藉此，可使自此旋轉 轴後端部送入貫通孔之冷卻液沿高速旋轉之旋轉輛之貫通 孔内周面流動，而大幅提高冷卻液之冷卻效率、。藉此，單 之相較於將空氣送入中空旋轉軸内者，就可獲得極良好冷 卻效率。 並且由於無需冷卻用風扇，故可作成無送風聲之極寧 靜、小型、輕量之挖掘裝置，進一步較諸利用風扇之氣冷 式，不會吸入切粉、灰塵，可消除因吸入切粉、灰塵而造 成之故障。 復由於即使停止旋轉袖之旋轉’仍可藉自旋轉轴後端 部送入之冷卻液繼續冷卻，可消除因停止後未馬上冷卻造 (請先閱讀背面之注意事項再填寫本頁) 裝 ----訂--- 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 4 311527 497322 經濟部智慧財產局員工消費合作社印製 A7 五、發明說明（5 ) 成的損壞。 又由於使冷卻液由沿旋轉軸之貫通孔内周面流動，冷 部中空型馬達之冷卻液送入空心鑽頭内，然後供給至挖掘 被挖掘物之鑽頭之挖掘處所，故可藉冷卻液進行鑽頭挖掘 處所之冷卻，可以冷卻液作為挖掘處所之潤滑劑，平穩挖 掘。 〜 又，本發明之中空型馬達具備設有使旋轉軸插通之中 空部之轉子，設於此轉子外周之圓筒形定子，以及設於前 述轉子之端部，而藉由固定插通前述中空部内之旋轉軸外 周面，並使此旋轉轴隨著前述轉子旋轉而旋轉之固定部。 因此，藉插通於轉子之中空部而與此轉子一體連結之 固定部固定之旋轉軸直接承受轉子之旋轉。亦即，由於轉 子之旋轉經由固定部直接傳輸至旋轉軸，無齒輪等之傳輸 耗失，旋轉轴可產生高轉矩。復由於以固定部固定旋轉轴 外周面之構造，故只要解除此固定部之固定，即可卸除旋 轉軸之固持。藉此易於進行旋轉轴之更換等維修作業，故 可提高作業性。 再且，本發明中空型馬達具有形成中空形之轉子，以 及设於此轉子外周之圓筒形定子，於前述轉子一端直接安 裝開孔工具。 如此，由於藉由轉子直接使旋轉開孔工具旋轉，故無 齒輪等之傳輸耗失，可產生高轉矩。復可使構造零件數儘 量減少。 [圖式之簡單說明] ^--------^---------^ f請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 5 311527 497322 A7 ------- B7 _ —______ 五、發明說明（6 ) 第1圖為顯示本發明一挖掘裝置例之挖掘裝置之剖視 圖。 第2圖為說明用於挖掘裝置之中空型馬達構造之中空 型馬達之剖視圖。 第3圖係顯示另一挖掘裝置例之挖掘裝置之剖視圖。 第4圖係說明用於挖掘裝置之另一中空型馬達構造之 中空型馬達之剖視圖。 第5圖係顯本發明另一挖掘裝置例之挖掘裝置之側視 圖。 第6圖係說明用於另一挖掘裝置之中空型馬達構造之 中空型馬達之剖視圖。 第7圖係說明用於另一挖掘裝置之中空型馬達之旋轉 軸内之冷卻液流之旋轉軸及轉子之部份剖視圖。 第8圖係說明習知挖掘裝置構造之挖掘裝置剖視圖。 [元件符號說明] 卜51 挖掘裝置 2、2A 空心鑽頭 2a、65 鑽頭 3 ^ 52 中空型馬達 4 壓緊棒 4a 定位部 5 ^ 55 進送機構 5a 齒條 5b 小齒輪 6 外蓋 32 ^ 67 轉子 32a 旋轉支持部 32b 中空部 32c ^ 68 定子 34a ^ 34b 固定部 35 ^ 66 殼體 35a - 66a 上壁部 35b 、 66b 下壁部 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 6 311527 I丨丨 (請先閱讀背面之注意事項再填寫本頁) 訂---------# 經濟部智慧財產局員工消費合作社印製 497322 A7497322 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 311527 A7 B7 V. Description of the invention G) [Field of invention] The present invention relates to an excavating device having a cylindrical hollow drill bit provided with a drill bit that excavates an excavated object into a ring shape. . [Advanced technology] In the past, the method used to reinforce the constructed concrete wall is as follows: first dig the first large opening in the wall, and set the iron support (diagonal support) in the opening > ), Second, the method of reinforcing the entire wall by fixing the anchors arranged on this support and on the inner peripheral surface of the opening with concrete. At this time, the anchor is disposed by receiving a hole provided in the inner peripheral surface of the opening. The hole used to arrange this bronzing piece is shown in Fig. 8. A ring-shaped drill bit 8 (^ hollow drill bit 80 made of diamond, etc.) is provided at the front end of the cylindrical member. The device for making the hollow drill 80 rotate around the axis is formed by an electric motor 81. I means' by abutting the drill bit 80a provided at the front end of the hollow drill 80 against the object to be excavated, that is, concrete, while rotating, it forms a cylinder. Shape the core (83), and then pull out the drill bit 80 from the inside of the concrete 82. Next, the root 83a of the pillar 83 remaining inside the concrete 82 is broken and then pulled out to form, for example, a diameter of 20 mm (Mm) to 35 inm, 200 mm depth anchoring holes. However, at this time, as follows. When the hollow iron head 80 is pulled out from the concrete 82, the root 83a is broken and formed into a cylindrical shape. The pillar 83 is hostile to the hollow interior of the hollow ~ bit 80 and the hollow drill is pulled out together. _: This clear / down 'It is difficult to take out the pillar 83 from the inside of the hollow drill 80. Tao Zhanglin uses f to close House (CNS_U4 Secret (2 ^^^-^ -------- t --------- ^ (Please read the back Please fill in this page again) A7 B7 printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. The description of the invention (2) will cause the problem of poor workability. Further, when this kind of concrete 8 is opened, the hollow drill bit 8 0 High torque must be generated, and at the same time, the structure of the hollow drill bit 80 must be made. Also, because the above-mentioned electric motor 81 is driven by a gear, such as a hydraulic motor, it has a very heavy weight. Dong, the problem of poor interposition, resurrecting, and loud voice (above 90dB), and I and even the gray rotation speed is only about 1500rpm at high speed, even if it is a special Thunderfield electric motor, the highest is 3000. To the level of 3900rpm ', therefore, there is a problem that the perforation time will be lengthened. Moreover, the ultrasonic perforation device by ultrasonic perforation can of course perforate at a lower noise, but on the contrary, it will have a slow perforation speed. The problem of prolonged operation period will still be brought about. Therefore, the object of the present invention is to provide a high-torque, rotation number, perforation in a short time, and at the same time, it is easy to replace the damaged hollow. A drill bit and a low-noise excavation device with a pillar that is not easy to be embedded in a hollow drill bit. [Abstract of the Invention] The excavation device of the present invention is provided with a cylindrical hollow drill bit provided with a drill bit which is excavated by the excavated material, and the The hollow drill rotary hollow motor is characterized in that the hollow motor includes a cylindrical rotor through which the hollow drill is provided, a cylindrical stator provided on an outer periphery of the rotor, and a cylinder fixedly provided on the rotor. The inner peripheral surface of the hollow drill is shaped as a fixed part that rotates the hollow drill in accordance with the rotation of the rotor. Therefore, it penetrates through the cylindrical interior of the rotor and is integrally connected with the rotor -------- ------------ Order --------- '(Please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm) 2 311527 497322 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (The hollow drill bit fixed by the fixed part directly bears the rotation of the rotor. That is, since the rotation of the rotor is directly transmitted to the hollow bit through the fixed portion, the hollow bit can generate a chirping torque. Since the rotation of the rotor is directly transmitted to the hollow drill bit through the fixed part, the structure does not require gears and other components, so the noise generated is reduced. Furthermore, because the structure of the outer peripheral surface of the hollow drill is fixed by the fixing portion, as long as the fixing portion is released, the holding of the hollow drill can be released. Since the replacement and maintenance of the hollow drill is easy, the workability can be improved. Furthermore, since the hollow drill can be replaced, a variety of thickness' tool shapes can be selected. Since the hollow motor is a high-rigid direct motor that directly rotates a hollow drill with a bit, the vibration of the rotating shaft, that is, the hollow drill, is extremely small. Therefore, it can rotate and perforate at high speed. Compared with the conventional low-speed perforation, it can Significantly increase its perforation speed. Thereby, the drilling process can be performed quickly, and the construction period of various construction operations with the drilling operation can be shortened. Due to the use of direct motors, compared with the use of power machines, hydraulic motors or electric motors with gears, the voice can be greatly reduced (approximately 70dB), and due to the small number of parts, maintenance costs can also be greatly reduced. Labor. Furthermore, the digging device of the present invention includes a cylindrical hollow drill bit provided with a drill bit for digging an excavated object into a ring shape, and a hollow motor for rotating the hollow drill bit, wherein the hollow motor has a front end A cylindrical rotor in which a cylindrical rotary shaft of the aforementioned hollow drill is installed, a cylindrical stator provided on the outer periphery of the rotor, and a rear end of the rotary shaft connected to the rear end of the rotary shaft. This paper applies the Chinese National Standard (CNS) A4 specification ( 210 X 297 mm) 311527 ----------- II ----- I-^ --------- (Please read the precautions on the back before filling this page) 497322 A7 _ B7 V. The description of the invention (4) is rotatable, and a rotary joint is formed to introduce the coolant supplied from the cooling supply source into the flow path in the rotary shaft, and the rotary joint is connected via the rotary The cooling fluid is sent into the through hole of the rotating shaft rotating together with the rotor, and the cooling liquid flows from the rear end side of the rotating shaft along the inner circumference of the through hole to the front end side, Coolant, without cooling fan But. Therefore, one side of the rotary shaft is inserted and penetrated through the rear end of the rotary shaft of the rotor, and the coolant supplied from the coolant supply source is sent into the through hole of the rotary shaft through the rotary connector. The drill bit excavates the excavated object, and the cooling liquid sent from the rear end portion flows along the inner peripheral surface of the through-hole of the rotary shaft, thereby absorbing the heat inside the hollow motor through the rotary shaft and cooling the interior of the hollow motor well. That is, since the so-called direct motor that directly rotates the rotary shaft on which the hollow drill is mounted, the rotary shaft can be rotated at high speed, thereby allowing the cooling liquid sent into the through hole from the rear end of the rotary shaft to rotate at high speed. The inner peripheral surface of the through hole of the vehicle flows, which greatly improves the cooling efficiency of the coolant. With this, it is possible to obtain very good cooling efficiency compared to the case where air is sent into the hollow rotating shaft. And because there is no need for a cooling fan, it can be made into a quiet, small, lightweight excavation device without the sound of blowing air. Compared with the air-cooled type using a fan, it does not inhale cutting powder and dust. Failure caused by dust. Because even if the rotation of the rotating sleeve is stopped, the cooling liquid sent from the rear end of the rotating shaft can still be used to continue cooling, which can eliminate the failure to cool down immediately after stopping (please read the precautions on the back before filling this page). --- Order --- Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is printed in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) 4 311527 497322 Printed by the Consumers ’Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 5. Description of the invention (5). Since the coolant flows from the inner peripheral surface of the through hole along the rotation axis, the coolant of the hollow-type motor of the cold part is sent into the hollow drill bit, and then supplied to the excavation place of the drill bit that excavates the object to be excavated. The cooling of the digging space of the drill bit can use the coolant as the lubricant of the digging space to dig smoothly. ~ Also, the hollow motor of the present invention includes a rotor provided with a hollow portion through which a rotating shaft is inserted, a cylindrical stator provided on the outer periphery of the rotor, and an end portion of the rotor, and the aforementioned is fixedly inserted. A fixed portion of the outer peripheral surface of a rotating shaft in the hollow portion and rotating the rotating shaft as the rotor rotates. Therefore, the rotating shaft fixed by the fixed portion which is inserted into the hollow portion of the rotor and integrally connected with the rotor directly receives the rotation of the rotor. That is, since the rotation of the rotor is directly transmitted to the rotating shaft via the fixed portion, there is no transmission loss of gears, etc., and the rotating shaft can generate high torque. Since the outer peripheral surface of the rotating shaft is fixed by the fixing portion, as long as the fixing portion is released, the holding of the rotating shaft can be removed. As a result, maintenance work such as replacement of the rotary shaft can be easily performed, and workability can be improved. Furthermore, the hollow motor of the present invention has a hollow rotor, and a cylindrical stator provided on the outer periphery of the rotor, and an opening tool is directly installed at one end of the rotor. In this way, since the rotary drilling tool is directly rotated by the rotor, there is no transmission loss of gears and the like, and high torque can be generated. This minimizes the number of construction parts. [Brief description of the drawings] ^ -------- ^ --------- ^ f Please read the notes on the back before filling in this page) This paper size applies to Chinese National Standards (CNS) A4 specification (210 X 297 mm) 5 311527 497322 A7 ------- B7 _ —______ 5. Description of the invention (6) Figure 1 is a cross-sectional view of an excavation device showing an example of an excavation device of the present invention. Fig. 2 is a cross-sectional view illustrating a hollow motor used in a hollow motor structure of an excavator. Fig. 3 is a cross-sectional view of an excavating device showing another example of the excavating device. Fig. 4 is a cross-sectional view of a hollow-type motor illustrating another hollow-type motor structure for an excavating device. Fig. 5 is a side view showing an excavating device according to another example of the excavating device of the present invention. Fig. 6 is a cross-sectional view illustrating a hollow-type motor used in a hollow-type motor structure of another excavating device. Fig. 7 is a partial cross-sectional view illustrating a rotating shaft and a rotor of a coolant flow in a rotating shaft of a hollow motor of another excavating device. Fig. 8 is a cross-sectional view of an excavating device illustrating the structure of a conventional excavating device. [Description of component symbols] Bu 51 Excavating device 2, 2A hollow drill 2a, 65 drill 3 ^ 52 hollow motor 4 pressing rod 4a positioning part 5 ^ 55 feed mechanism 5a rack 5b pinion 6 outer cover 32 ^ 67 rotor 32a Rotary support part 32b Hollow part 32c ^ 68 Stator 34a ^ 34b Fixed part 35 ^ 66 Cases 35a-66a Upper wall part 35b, 66b Lower wall part This paper standard applies to China National Standard (CNS) A4 specification (210 X 297 male) (%) 6 311527 I 丨 丨 (Please read the notes on the back before filling out this page) Order --------- # Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives 497322 A7
---I —----裝 ----訂·--I I I---線 (請先閱讀背面之注意事項再填寫本頁} 311527 7 經濟部智慧財產局員工消費合作社印製 497322 五、發明說明（8 ) 其中’如第2圖所示’中空型馬達3具備設有可使空 心鑽頭2貫通之中空部32c之轉子32，設於此轉子32外 周之圓筒形定子33,以及設於轉子32二端之固定部Μ” 34b ,、t轉子32及定子33係收容於具備上壁部35a 及下壁部35b之殼體35内部。 空心鑽頭2係於圓筒形構件前端具備金剛石、超硬夹 頭製鑽頭20者，便該空心鑽頭2旋轉而挖掘混凝土。，而 形成圓柱形柱體A。 設於定子33内側之轉子32係形成中空圓筒形，具備 圓筒部32a’以及固定於此圓筒部32a内周面而具有沿空 心鑽頭2縱長方向之形狀之圓筒形旋轉支持部32^並且， 於旋轉支持部32b之内周，沿軸線方向形成中空部作 為用來使空心错頭2貫穿之貫通孔。 於殼體35之上壁部353及下壁部35b之内側分別設置 用來支持轉子32成旋轉自如之軸承36a、3讣。亦即，軸 承36a、36b配置成支持轉子32之旋轉支持部3孔之上下 二端，可承受作用於空心鑽頭2以及與其連結之轉子32 上之軸向力及徑向力。 於轉子3 2之圓甸部3 2 a之半握方向外側設有定子 33 ’此定子33係具有與圓筒部32a相同長度之圓筒形狀 者，該定子33係固定於殼體35之内周面。 於轉子32之旋轉支持部32b上下二端設有固定部 34a、34b，用來固定配設於中空部32c内部之空心鑽頭2。 此等固定部34a、34b分別設於殼體35之上壁部35a及下 ------------裝.-------訂---------· (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 8 311527 497322 A7--- I —---- Installation ---- Order · --II I --- Line (Please read the notes on the back before filling this page} 311527 7 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 497322 V. Description of the invention (8) Among them, the hollow motor 3 is provided with a rotor 32 that allows the hollow drill bit 2 to pass through the hollow portion 32c, as shown in FIG. 2, and a cylindrical stator 33 provided on the outer periphery of the rotor 32. A fixed portion M ″ 34b provided at both ends of the rotor 32, the t-rotor 32 and the stator 33 are housed inside a casing 35 having an upper wall portion 35a and a lower wall portion 35b. The hollow drill 2 is attached to the front end of the cylindrical member Those with diamond and super-hard chuck drills 20 rotate the hollow drill 2 to dig concrete. A cylindrical column A is formed. A rotor 32 provided inside the stator 33 is formed into a hollow cylindrical shape and has a cylindrical portion. 32a 'and a cylindrical rotation support portion 32 ^ which is fixed to the inner peripheral surface of the cylindrical portion 32a and has a shape along the longitudinal direction of the hollow drill 2; and a hollow portion is formed along the axial direction on the inner periphery of the rotation support portion 32b. It serves as a through-hole for penetrating the hollow crosshead 2. The upper wall portion 353 and the lower wall of the casing 35 Bearings 36a, 3 讣 are provided on the inner side of the portion 35b to support the rotor 32 to rotate freely. That is, the bearings 36a, 36b are configured to support the upper and lower ends of the 3 holes of the rotating support portion of the rotor 32, which can bear the hollow drill bit. 2 and the axial and radial forces on the rotor 32 connected to it. A stator 33 is provided on the outside of the half-grip direction of the round section 3 2 a of the rotor 32. The stator 33 has the same length as the cylindrical portion 32a. In the case of a cylindrical shape, the stator 33 is fixed to the inner peripheral surface of the casing 35. Fixing portions 34a and 34b are provided at the upper and lower ends of the rotation support portion 32b of the rotor 32, and are used to fix the inner portion of the hollow portion 32c. Hollow drill bit 2. These fixing portions 34a, 34b are respectively provided on the upper wall portion 35a and the lower portion of the casing 35 ------------ install .------- order ---- ----- · (Please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 8 311527 497322 A7
k i I I I I I I 訂、4 丨：>厶丄 A7 五、發明說明（1〇 ) 推進機構5係用來使連接於中空型馬達3之空心鑽頭 2前端沿向被挖掘物即混凝土C之方向接近、離開移動 者，係連結於中空型€ ;童1 二芏馬違3之一部份。此推進機構5具備 齒條5a及小齒輪5b ;齒條5a ㈣、#狂w u r 、 傲俅3 a上鈿連結於外盍6之頂部， 而下端設成支持於混凝土 C之表面。 驅動連結於馬達等驅動源之小齒輪5b，中空型馬達3 及連結於此中空型馬達3之空心鑽頭2即於外蓋6之内部 昇降。 亦即，在以推進機構5使連結於中空型馬達3之空心 鑽頭2下降時，由於空心錢頭2之鑽頭以對混凝土〔之 按壓力增大，故混凝土 c被挖掘成圓柱形。 另一方面，在以推進機構5將中空型馬達3與空心鑽 頭2 —齊上昇時，空心鑽頭2即自混凝土 c内部拔出。 按壓桿4係插通於形成圓筒狀之空心鑽頭2之筒形内 部者，而設成使其下端抵接混凝土 c中位於空心鑽頭2内 側部份之柱體A表面。 此按壓桿4係自以推進機構5昇降之中空型馬達3以 及與其連結之空心鑽頭2分別獨立設置，即使空心鑽頭2 及中空型馬達3昇降，按壓桿4亦不會改變其位置。 此按壓桿4之上方自外蓋6突出，可用手等自上方塵 下。亦可一齊固定按壓桿棒4及外蓋6之頂部。 在以具有此種構造之挖掘裝置，挖掘混凝土 C時，I 先將夾緊機構，亦即固定部34a、34b鬆開，成可使空心# 頭2貫通於轉子32之中空部32c之狀態，其次，將空心鑽 __ _ ___〆 :丨丨丨-------,·έ ί請先閱讀背面之注意事項再填寫本頁) ----訂--------- 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 311527 497322 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 π A7 B7 五、發明說明（U ) 頭2插通中空部32c，俾使其鑽頭2a配設於下端側之固定 部34b夕卜側。 並且，於中空部32c之内部，將空心鑽頭2配置於所 需位置後’藉設於上下二端之夾緊機構構成之固定部 34a、3 4b夾緊而固定空心鑽頭2的二個部位的外周面。 並且，使設於定子33(或轉子32)之線圈通電，使連結 |於固定部34a、34b之轉子32旋轉。固定於固定部34a、 3 4b之空心鑽頭2與轉子32即一體旋轉。 並且，使此空心鑽頭2之鑽頭2a抵接於混凝土 c表 面。此時，將按壓桿4插通於空心鑽頭2之筒形内部，使 其下端抵接位於空心鑽頭2内側部份之混凝土 c表面。 與此同時，驅動推進機構5之小齒輸5b，使空心鑽頭 2與中空型馬達-3 一齊下降。隨著其下降，空心鑽頭2之 鑽頭2a及混凝土 C表面之按壓力增大，而將混凝土 c挖 |掘成圓環狀。 若混凝土 C藉空心鑽頭2挖掘至所需深度，即藉進給 機構5使此空心鑽頭2與中空型馬達3 一齊上昇，自混凝 土c拔出空心鑽頭2。此時，一面藉按壓桿4前端壓住柱 體A表面，一面拔出空心鑽頭2。 於此，自混凝土C拔出空心鑽頭2時，以按壓桿斗壓 住柱體A，則即使形成圓柱形之柱體A之根頭ai 一時折 斷，亦能防止柱體A嵌住於空心鑽頭2之筒形内部而與其 一齊拔出。如此，自挖掘之混凝土 c僅拔出空心鑽頭2, 使柱體A殘留在混凝土 c内部。 本紙張尺度適用憎國家標準（CNS)A4規格⑽x 297公爱） 311527 --------------裝--------訂---------線 Γ 清先閱讀背面之注意事項再填寫本頁) 497322 A7 12 五、發明說明（ 且，冷卻水供給裝置連社於咖 衣1迓…於空心鑽頭2之上端側，亦 可一面通過空心鑽頭2夕筒 鬵壙2之尚形内部’直接供給冷卻水於鑽 (請先閱讀背面之注意事項再填寫本頁) 頭’一面挖掘。由於藉供給之冷 ▽评水減低鑽頭2a之加熱， 故可增長空心鑽頭2之使用毒令 π ^ 奇命’同時減低因挖掘而發生 的混凝土粉塵飛散。 進一步，亦可自上端側朝鑽頭2a將連結於真空機構之 管子插入空心鑽頭2之筒形内部，一面吸取因挖掘而產生 的粉塵、切屑等細碎物，一面進挖掘。 並且’若自混凝土C拔出空心鑽頭2,即用手等自根 頭al折斷而拔出疼在於甚 议®殘仔於此鈇土C内部之柱體A，藉此形 成孔。 又，在空心鑽頭2之鑽頭。因挖掘而耗損時，卸除固 定部34a、34b之固持，可更換新的空心鑽頭2。 經濟部智慧財產局員工消費合作社印製 如此與貫通轉子32之筒狀内部並由固定部34a、34b 口疋連、” σ於轉子32成一體之空心鑽頭2，即直接承受轉子 32之旋轉。亦即，由於中空型馬達3係直接使空心鑽頭2 旋轉之直接型馬達，故轉子32之旋轉經由固定部34&、3仆 直接傳輸至空心鑽頭2，空心鑽頭2可產生高轉矩。 因此’此蜂土 C之挖掘穩定進行。且，由於轉子32 之旋轉經由固定部343、341)直接傳輸至空心鑽頭之構造， 無需齒輪等構件，故減低產生的噪音。復由於係以固定部 34a、34b夾緊空心鑽頭2外周面之構造，故只要解除此夾 緊’即可卸除空心鑽頭2之固持。 _m ^ ^易進行空心鑽頭2更換等維修作業，故提高作 12 ^紙張尺度適用中國國家標準（CNS)A4規格（21〇 χ挪公爱） - -- 311527 497322 A7 13 五、發明說明（ 業性。復由於可更換空心鑽頭2，故可選擇種種厚度、形 狀之鑽頭2a。 又由於此挖掘裝置1之中空型馬達3係直接使具有鑽 頭2a之空心鑽頭2旋轉之高剛性直接型馬達，故旋轉軸， 即空心鑽頭2之振動極小，因此，可高速旋轉穿孔，較諸 習知低速穿孔情形，可大幅提高其穿孔速度。 藉此’可迅速進行開孔加工，以謀求具有開孔作業的 各種施工作業的工時之縮短及簡化。 又由於使用直接型馬達，故相較於使用動力機、油壓ki IIIIII order, 4 丨: > 厶 丄 A7 5. Description of the invention (10) The propulsion mechanism 5 is used to make the front end of the hollow drill 2 connected to the hollow motor 3 close to the excavated object, that is, the concrete C, Leaving the mover is connected to the hollow type; Tong 1 is a part of the horse. This propulsion mechanism 5 includes a rack 5a and a pinion 5b; the rack 5a ㈣, # 狂 w u r, and 3 a are connected to the top of the outer cymbal 6, and the lower end is set to support the surface of the concrete C. The small gear 5b connected to a driving source such as a motor, the hollow motor 3, and the hollow drill 2 connected to the hollow motor 3 are driven up and down inside the outer cover 6. That is, when the hollow drill 2 connected to the hollow motor 3 is lowered by the propulsion mechanism 5, the concrete c is excavated into a cylindrical shape because the drill of the hollow money head 2 increases the pressing force against the concrete. On the other hand, when the hollow motor 3 and the hollow drill 2 are raised together by the propulsion mechanism 5, the hollow drill 2 is pulled out of the concrete c. The pressing rod 4 is inserted into the cylindrical inner portion of the hollow hollow drill 2 forming a cylindrical shape, and is provided so that the lower end thereof abuts on the surface of the column A of the concrete c located on the inner side of the hollow drill 2. The pressing rod 4 is independently provided by the advancement mechanism 5 for lifting the hollow motor 3 and the hollow drill 2 connected to it. Even if the hollow drill 2 and the hollow motor 3 are lifting, the pressing rod 4 will not change its position. The upper side of the pressing lever 4 protrudes from the outer cover 6 and can be dusted from the upper side by a hand or the like. The tops of the pressing rod 4 and the outer cover 6 can also be fixed together. When excavating the concrete C with an excavating device having such a structure, I first release the clamping mechanism, that is, the fixing portions 34a, 34b, so that the hollow # head 2 penetrates the hollow portion 32c of the rotor 32, Secondly, the hollow drill __ _ ___ 〆: 丨 丨 丨 -------, · έ Please read the precautions on the back before filling this page) ---- Order ------- -Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is printed to the Chinese National Standard (CNS) A4 (210 X 297 mm) 311527 497322 Printed by the Employees’ Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs π A7 B7 V. Description of the invention (U) The head 2 is inserted into the hollow portion 32c, and the drill 2a is arranged on the fixing portion 34b of the lower end side. And, inside the hollow portion 32c, after the hollow drill 2 is arranged at a desired position, the two positions of the hollow drill 2 are fixed by clamping the fixing portions 34a and 34b formed by clamping mechanisms provided at the upper and lower ends. Peripheral surface. Then, the coil provided in the stator 33 (or the rotor 32) is energized, and the rotor 32 connected to the fixed portions 34a and 34b is rotated. The hollow drill bit 2 fixed to the fixing portions 34a, 34b rotates integrally with the rotor 32. The drill 2a of the hollow drill 2 is brought into contact with the surface of the concrete c. At this time, the pressing rod 4 is inserted into the cylindrical inside of the hollow drill 2 so that its lower end abuts the surface of the concrete c located on the inner part of the hollow drill 2. At the same time, the small teeth 5b of the driving mechanism 5 are driven, so that the hollow drill 2 and the hollow motor-3 are lowered together. As it descends, the pressing force of the drill bit 2a of the hollow drill bit 2 and the surface of the concrete C increases, and the concrete c is dug into a ring shape. If the concrete C is dug to the required depth by the hollow drill bit 2, the feed mechanism 5 is used to raise the hollow drill bit 2 with the hollow motor 3, and the hollow drill bit 2 is pulled out from the concrete c. At this time, the hollow drill bit 2 is pulled out while pressing the front end of the pressing rod 4 against the surface of the column A. Here, when the hollow drill bit 2 is pulled out from the concrete C, the column A is pressed by the pressing bucket, and even if the root ai of the cylindrical column A is broken at one time, the column A can be prevented from being embedded in the hollow drill. The inner tube of 2 is pulled out together with it. In this way, only the hollow drill bit 2 is pulled out from the concrete c excavated, so that the column A remains inside the concrete c. The size of this paper is applicable to the National Standard (CNS) A4 specification (x 297 public love) 311527 -------------- installation -------- order -------- -Line Γ read the precautions on the back before filling this page) 497322 A7 12 V. Description of the invention (and the cooling water supply device is connected to Kayi 1 迓 ... on the upper side of the hollow drill 2 or through the hollow on one side The drill-shaped inner part of the drill 2 is directly supplied with cooling water to the drill (please read the precautions on the back before filling in this page). The head is excavated on the side. Due to the cold supply of water ▽, the heating of the drill 2a is reduced, Therefore, it is possible to increase the use of the hollow drill bit 2 to make the π ^ odd life 'meanwhile reduce the scattering of concrete dust caused by excavation. Furthermore, the pipe connected to the vacuum mechanism can also be inserted into the cylindrical shape of the hollow drill bit 2 from the upper side to the drill bit 2a. Inside, while absorbing fine debris such as dust, chips and the like generated by the excavation, dig into it. And 'If the hollow drill 2 is pulled out from the concrete C, it is broken by hand and so on and the pain is pulled out. A hole A is formed inside this earth C to form a hole. Also, in the hollow drill 2 Drill bit. When it is worn out due to digging, remove the holding of the fixed parts 34a and 34b and replace it with a new hollow drill bit 2. The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints such a cylindrical interior that penetrates the rotor 32 and the fixed part 34a ， 34b 口 疋 ，， σ The hollow drill bit 2 integrated with the rotor 32 directly bears the rotation of the rotor 32. That is, because the hollow motor 3 is a direct motor that directly rotates the hollow drill bit 2, the rotor 32 The rotation is directly transmitted to the hollow drill bit 2 through the fixed parts 34 & 3, and the hollow drill bit 2 can generate a high torque. Therefore, the excavation of this honeycomb C is performed stably. Moreover, because the rotation of the rotor 32 passes through the fixed parts 343 and 341) The structure is directly transmitted to the hollow drill bit, which eliminates the need for gears and other components, so the noise generated is reduced. Since the outer peripheral surface of the hollow drill bit 2 is clamped by the fixed parts 34a and 34b, the hollow can be removed as long as the clamping is released. Holding of drill bit 2. _m ^ ^ It is easy to perform maintenance operations such as replacement of hollow drill bit 2, so it is increased to 12 ^ Paper size applies Chinese National Standard (CNS) A4 specification (21〇χ 公公 爱)--311527 49 7322 A7 13 V. Description of the invention (industrial. Since the hollow drill bit 2 can be replaced, a variety of thicknesses and shapes of the drill bit 2a can be selected. Also, since the hollow motor 3 of this digging device 1 is a hollow drill bit having a drill bit 2a directly 2 Rotating high rigid direct motor, so the vibration of the rotating shaft, namely the hollow drill bit 2, is very small. Therefore, the perforation can be rotated at a high speed, which can greatly increase the perforation speed compared with the conventional low-speed perforation situations. Hole processing is aimed at shortening and simplifying the man-hours of various construction operations with opening operations. Because of the use of direct motors,
馬達或附齒輪之電動馬達情形，可大幅減低噪音（約7〇dB 程度），復由於零件數少，故亦可大幅減低維修作業所耗勞 力。 並且，自混凝土 C挖出空心鑽頭2時，以插通於空心 鑽頭2之筒形内部之按壓桿4按壓混凝土 c之空心鑽頭2 内側部份之柱體A表面，僅拉出空心鑽頭2，可使柱體a 殘留於混凝土 C内部。由於柱體a不嵌住於空心鑽頭2之 筒形内部，故無需知習知自空心鑽頭2之筒形内部除去柱 體A之困難作業，可提高作業性。 由於空心鑽頭2 —面藉具備齒條5a及小齒輪5b之推 進機構5導引、昇降，一面挖掘混凝土 c，故可獲得穩定 形狀之柱體A。因此，所挖得孔之形狀亦穩定。 藉由设置外蓋6防止因挖掘產生的混凝土 c粉塵、切 屑之飛散，並可減低因挖掘產生之噪音。 復由於設於轉^或定子33任一方之磁極係歛、鐵、 本紙張尺度適用中國國家標準（CNS)A4規格（21〇 X 297公爱) ---一 __ 13 311527 Μ--------^---------線 (請先閱讀背面之注意事項再填寫本頁) 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 A7 A7 五 B7 、發明說明（14 ) 蝴系或彭、姑系之稀土類高密度磁石，故可減小轉子32 或定子33之大小，藉此可求得更小型與減輕產量。 第3圖所示者係另一實施形態之挖掘裝置1。此挖掘 裝置1具有前端部縮窄成銳角之錐形定位部4a形成之按壓 桿4 〇 具有此按壓桿4之挖掘裝置1於挖掘時，以按壓桿4 之疋位部4a嵌合於預先形成於被挖掘物即混凝土 c之定 位孔之標記Μ之狀態，進行開孔作業。 亦即，根據此挖掘裝置1，由按壓桿4之定位部4a嵌 合而定位於混凝土 C之標記Μ，可進行極高精度之開孔加 工’並且，此時，殘存於令心之柱體Α藉按壓桿4確實固 持，可確實防上此柱體A振動。 並且’藉由如此一面固持核蕊A，一面進行開孔作業， 可確實防止柱體A干涉空心鑽頭2内面造成的不便，而可 進行良好的穿孔作業。 其次’就使用挖掘裝置之另一中空型馬達3加以說 明。 如第4圖所示，於此中空型馬達3中，使構成轉子32 之旋轉支持部32b之一端突出，此突出之旋轉支持部32b 形成有連結部41。並且，於前端部設有鑽頭2a之圓筒形 空心鑽頭2 A直接連結固定於此旋轉支持部32b之連結部 41 〇 於此連結部4 1設有用來連結固定空心鑽頭2 a之接頭 (adapter)42，藉此接頭42連結固定轉子32之旋轉支持部 311527 --------^---------. (請先閱讀背面之注意事項再填寫本頁) 497322 A7In the case of motors or electric motors with gears, noise can be greatly reduced (approximately 70dB). Due to the small number of parts, the labor required for maintenance operations can also be greatly reduced. Furthermore, when the hollow drill bit 2 is dug out from the concrete C, the pressing rod 4 inserted into the cylindrical inside of the hollow drill bit 2 presses the surface of the column A of the inner portion of the hollow drill bit 2 of the concrete c, and only the hollow drill bit 2 is pulled out. The pillar a can be left inside the concrete C. Since the pillar a is not embedded in the cylindrical inside of the hollow drill 2, there is no need to know the difficult operation of removing the pillar A from the cylindrical inside of the hollow drill 2, and the workability can be improved. Since the hollow drill bit 2 is guided and lifted by a pushing mechanism 5 provided with a rack 5a and a pinion 5b, concrete c is excavated while a cylindrical body A having a stable shape can be obtained. Therefore, the shape of the excavated hole is also stable. The outer cover 6 is provided to prevent the scattering of concrete dust and chips caused by the excavation, and to reduce the noise generated by the excavation. Since the magnetic poles set on either the rotor or the stator 33 are converged, iron, and this paper size are applicable to the Chinese National Standard (CNS) A4 specification (21〇X 297 public love) ---__ 13 311527 Μ --- ----- ^ --------- line (Please read the notes on the back before filling this page) Printed by the Consumers Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs A7 A7 Five B7, Invention Description (14) Butterfly The rare earth-based high-density magnets of the Peng and Peng series can reduce the size of the rotor 32 or the stator 33, thereby making it possible to obtain a smaller size and reduce production. The one shown in Fig. 3 is an excavating device 1 according to another embodiment. This excavating device 1 has a pressing rod 4 formed by a tapered positioning portion 4a whose front end is narrowed to an acute angle. ○ The excavating device 1 having this pressing rod 4 is fitted into a pre-formed portion 4a of the pressing rod 4 during excavation. The drilling operation is performed in the state of the mark M of the positioning hole of the concrete c to be excavated. That is, according to this excavating device 1, the positioning portion 4a of the pressing rod 4 is fitted and positioned at the mark M of the concrete C, so that extremely high-precision drilling processing can be performed ', and at this time, it remains in the pleasing cylinder A can be firmly held by pressing the lever 4 to prevent the column A from vibrating. In addition, by holding the core core A in this way and performing the hole-opening operation, the inconvenience caused by the interference of the column A with the inner surface of the hollow drill 2 can be prevented, and a good perforation operation can be performed. Next, a description will be given of another hollow motor 3 using an excavator. As shown in FIG. 4, in this hollow motor 3, one end of a rotation support portion 32 b constituting the rotor 32 is protruded, and the protruding rotation support portion 32 b is formed with a connection portion 41. In addition, a cylindrical hollow drill 2A provided with a drill 2a at the front end portion is directly connected and fixed to a connection portion 41 of the rotation support portion 32b. A joint (adapter) for connecting and fixing the hollow drill 2a is provided at the connection portion 41. ) 42, which uses the joint 42 to connect the rotation support part 311527 of the fixed rotor 32 -------- ^ ---------. (Please read the precautions on the back before filling this page) 497322 A7
五、發明說明（15 ) 32b之連結部4 1與空心鑽頭2A。 並且，此中空型馬達3亦使設於定子33(或轉子3 2) 之線圈通電，藉由旋轉轉子32，使直接連結於轉子32之 旋轉支持部32b之連結部41之空心鑽頭2A隨著轉子32 旋轉一體旋轉，因此，藉由空心鑽頭2A前端部之鑽頭2a 抵接於例如混凝土等被挖掘物，可挖掘被挖掘物。 ψ 並且，由於上述中空型馬達3將轉子32之旋轉直接 傳輸至前端部設有鑽頭2 a之圓筒形空心鑽頭2A構成之開 孔工具，故無齒輪之傳輸耗失，可以高轉矩旋轉空心鑽頭 2 A。復由於作為開孔工具之空心鑽頭2a直接安裝於轉子 32，故可使構造零件數極少。 其次，參照圖式說明另一挖掘裝置。 於第5圖友第6圖中，符號51係挖掘裝置，符號52 係構成此挖掘裝置51之中空型馬達。此挖掘裝置51作成 jp經由推進機構55支持前述中空型馬達52於立設在基座53 之支柱54上之構造，藉推進機構55，使中空型馬達52沿 支柱54移動。 先 閱 言i 背 之 注 意 事 項 再 填 寫 本 頁 k η λ 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 中空型馬達52於其中心具有圓筒形旋轉軸61，經由 接頭62，將空心鑽頭63以可裝卸之形態連結於此旋轉軸 6 1之前端部。此空心鑽頭63作成金剛石製鑽頭65並沿圓 周方向一體設於形成中空狀之管子64前端部之構造。 亦即，此中空型馬達52係使直接連接於旋轉轴61之 開孔工具，即空心鑽頭63直接旋轉之直接型馬達。 構成空心鑽頭63之鑽頭65係例如以金屬黏合劑或樹 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 15 311527 497322 A7 B7 五、發明說明（16 ) 脂黏合劑作為黏合劑固定金剛石磨粒之金剛石鑽頭。 於中空型馬達52，在其殼體66内，具有使旋轉軸61 (請先閱讀背面之注音？事項再填寫本頁) 插通而一體固定之轉子67，以及設於此轉子67外周之圓 筒形定子08 〇 分別於殼體66之上壁部66a及下壁部66b之内側設置 用來以旋轉自如支持轉子62之軸承69a、69b。亦即，軸 承69a、6 9b作成支持插通於轉子67中心之旋轉轴61之上 下端部附近’可承受作用於旋轉軸61及插通了此旋轉轴 61之轉子之轴向力及徑向力之構造。 於此中空型馬達52之後端部設有旋轉連接器（rotary joint)71。此旋轉連接器71係安裝於殼體66之上壁部66a， 以可旋轉並成液密狀態連結於旋轉轴61之後端部。 於此旋轉連接器71形成有連通旋轉轴61中心之貫通 孔61a之流路72。此流路72開口於旋轉連接器71之側部。 另有管子74連接開口於此側部之開口部73，冷卻水（冷卻 液）即自此管子74送入。 經濟部智慧財產局員工消費合作社印製 並且，自此管子74送入旋轉連接器71之流路72之冷 卻水通過此旋轉連接器71之流路72,導向旋轉軸61之貫 通孔61a，此後，送入經由接頭62連結於旋轉軸61前端 部之空心鑽頭63之管子64内。 符號75係於中空型馬達52之殼體66内部上方側，接 觸旋轉轴6 1，而沿其周向配設之電刷部，驅動電流即自此 電刷部7 5供給。 具備此轉子62及定子63之中空型馬達52亦可為附電 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 16 311527 497322 A7 17 五、發明說明（ 刷馬達或無電刷馬達之任一形態。又，在轉子6 7具備線圈 時，定子68可為磁鐵或線圈，另一方面，在轉子67為磁 鐵時，定子63可具備線圈。 具有磁鐵之轉子或定子68中任一方均係使用鈥、鐵、 硼系或釤、鈷系之稀土類高密度磁鐵作為其磁石。 其次就使用上述構造之挖掘裝置5 1於被挖掘物即混 凝土 C開孔之情形加以說明。 首先，將位於支柱54上方側之中空型馬達52定位於 混凝土 C之預定開孔位置，使旋轉轴6 1之軸線一致，而 固定基座53於混凝土 c上。 如此設置挖掘裝置5 1於混凝土 C上後，使中空型馬 達52之轉子67(或定子68)之線圈通電，以約4〇〇〇叩111之 尚速使轉子67旋轉，同時，自未圖示之冷卻水供給裝置（冷 卻液供給源），經由管子74送入冷卻水。 _ 如此，經由管子74自冷卻水供給裝置送入之冷卻水即 經由旋轉接合71之流路72送入旋轉軸61之貫通孔61a 内。 並且，於此狀態下，以推進機構55使中空型馬達52 下降，藉此使連結於旋轉軸61前端部之空心鑽頭63之鑽 頭65抵接混凝土 C之表面。如此，以高速旋轉之鑽頭65 於混凝土 C形成環狀孔η。 於此，藉由此中空型馬達52之旋轉軸61高速旋轉， 使送入旋轉轴61貫通孔61a内之冷卻水如第3圖所示，、八 旋轉軸61之貫通孔61a内周面朝向前端部方向流動V. Description of the invention (15) The connecting part 41 of 32b and the hollow drill 2A. In addition, the hollow motor 3 also energizes a coil provided on the stator 33 (or the rotor 32), and by rotating the rotor 32, the hollow drill 2A of the connecting portion 41 directly connected to the rotating support portion 32b of the rotor 32 follows The rotor 32 rotates and rotates integrally. Therefore, the drill 2a at the front end portion of the hollow drill 2A abuts against an object to be excavated, such as concrete, so that the object to be excavated can be excavated. ψ In addition, since the above-mentioned hollow motor 3 directly transmits the rotation of the rotor 32 to a drilling tool composed of a cylindrical hollow drill 2A provided with a drill 2a at the front end, there is no transmission loss of gears and high torque rotation is possible Hollow drill bit 2 A. Since the hollow drill 2a as a drilling tool is directly mounted on the rotor 32, the number of structural parts can be extremely small. Next, another excavator will be described with reference to the drawings. In FIG. 5 and FIG. 6, the symbol 51 is an excavating device, and the symbol 52 is a hollow motor constituting the excavating device 51. This excavating device 51 is made jp to support the structure of the hollow motor 52 on a pillar 54 standing on a base 53 via a propulsion mechanism 55, and the hollow motor 52 is moved along the pillar 54 by the propulsion mechanism 55. Read the note on the back of the word i before filling in this page k η λ The hollow motor 52 printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has a cylindrical rotating shaft 61 at its center. The attachment and detachment form is connected to the front end of the rotating shaft 61. This hollow drill 63 is formed as a diamond drill 65 and is integrally provided along the circumferential direction at a front end portion of a hollow pipe 64. That is, the hollow-type motor 52 is a direct-type motor that directly rotates a hole-opening tool 63 that is directly connected to the rotation shaft 61. The drill bit 65 constituting the hollow drill bit 63 is, for example, a metal adhesive or a tree-size paper applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 15 311527 497322 A7 B7 V. Description of the invention (16) The grease adhesive is used as Diamond bit for fixing diamond abrasive grains with adhesive. The hollow motor 52 has a rotor 67 integrally fixed to the rotating shaft 61 (please read the note on the back? Please fill in this page) in the housing 66, and a circle provided on the outer periphery of the rotor 67 The cylindrical stator 08 is provided with bearings 69a and 69b for rotatably supporting the rotor 62 inside the upper wall portion 66a and the lower wall portion 66b of the housing 66, respectively. That is, the bearings 69a, 69b are made to support the upper and lower ends of the rotating shaft 61 inserted through the center of the rotor 67, and can withstand the axial force and the radial force acting on the rotating shaft 61 and the rotor inserted through the rotating shaft 61. The structure of force. A rotary joint 71 is provided at the rear end of the hollow motor 52. The rotary connector 71 is attached to the upper wall portion 66 a of the housing 66 and is rotatably connected to the rear end of the rotary shaft 61 in a liquid-tight state. A flow path 72 is formed in the rotary connector 71 to communicate with a through hole 61a in the center of the rotary shaft 61. This flow path 72 is opened at a side portion of the rotary connector 71. Another pipe 74 is connected to the opening portion 73 opened on this side, and cooling water (coolant) is sent from this pipe 74. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs and the cooling water sent from the pipe 74 into the flow path 72 of the rotary connector 71 passes through the flow path 72 of the rotary connector 71 and is guided to the through hole 61a of the rotary shaft 61. , Into the tube 64 of the hollow drill 63 connected to the front end of the rotary shaft 61 via the joint 62. The reference numeral 75 is on the upper side of the inside of the housing 66 of the hollow motor 52, and it contacts the rotating shaft 61, and a brush portion disposed along the circumferential direction of the brush portion 75 is supplied with the drive current. The hollow motor 52 with the rotor 62 and the stator 63 can also be attached to the paper. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 16 311527 497322 A7 17 V. Description of the invention (brush motor or no electricity) Any one of the brush motors. When the rotor 67 is provided with a coil, the stator 68 may be a magnet or a coil. On the other hand, when the rotor 67 is provided with a magnet, the stator 63 may be provided with a coil. Either one uses rare earth high-density magnets of the ', iron, boron series, or samarium, cobalt series as its magnets. Next, the case where the excavation device 51 with the above-mentioned structure is used to open holes in the concrete C to be excavated will be described. First, the hollow motor 52 located on the upper side of the pillar 54 is positioned at a predetermined opening position of the concrete C so that the axis of the rotating shaft 61 is aligned, and the fixed base 53 is placed on the concrete c. Thus, the excavation device 51 is set on the concrete After C is turned on, the coil of the rotor 67 (or the stator 68) of the hollow motor 52 is energized, and the rotor 67 is rotated at a speed of about 400 × 111, and at the same time, a cooling water supply device (coldLiquid supply source), cooling water is supplied through the pipe 74. _ In this way, the cooling water sent from the cooling water supply device through the pipe 74 is sent into the through hole 61a of the rotary shaft 61 through the flow path 72 of the rotary joint 71. In this state, the hollow motor 52 is lowered by the propulsion mechanism 55, so that the drill 65 of the hollow drill 63 connected to the front end of the rotary shaft 61 abuts the surface of the concrete C. Thus, the drill 65 rotating at high speed is Concrete C forms an annular hole η. Here, the rotating shaft 61 of the hollow motor 52 is rotated at a high speed, so that the cooling water sent into the through hole 61a of the rotating shaft 61 is as shown in FIG. The inner peripheral surface of the through hole 61a flows toward the front end portion
本紙張尺度適財関家標準（CNS)A4規格（210 X 297公爱T 311527 --------^--------1 (請先閱讀背面之注意事項再填寫本頁) 經 濟 部 智 慧 財 產 局 員 X 消 費 合 作 社 印 製 17 經濟部智慧財產局員工消費合作社印製 497322 A7 -------B7 五、發明說明（18 ) 亦即’於旋轉軸61之貫通孔6ia内流動之冷卻水藉由 沿貫通孔6 1 a内周面流動，經由旋轉軸6 1，一面吸收中空 型馬達52内部之熱，一面朝向前端部移動，對中空型馬達 52内部作極佳冷卻。 進步由於使冷卻水沿旋轉轴61之貫通孔61a内周面 流動’冷卻中空型馬達5 2之冷卻水即送入空心鑽頭6 3之 管子64内，然後，供給至挖掘混凝土 c之鑽頭65之挖掘 部位。 藉此，此鑽頭65以冷卻水冷卻挖掘部位，進一步，此 冷卻水作為鐵頭6 5之挖掘處所之潤滑劑，進行良妤挖掘， 與切粉一齊排出外部。 如此，根據上述挖掘裝置，一面自插通而貫通轉子67 之旋轉軸61後蟪部，經由旋轉連接器71，將自冷卻水供 給源即末圖示之冷卻水供給裝置供給之冷卻水送入旋轉轴 61之貫通孔61a内，一面使旋轉軸61旋轉，以空心鑽頭 63之鑽頭65挖掘混凝土 C，使自後端部送入之冷卻水沿 旋轉軸6 1之貫通孔6 1 a内周面流動，藉此，經由旋轉軸吸 收中空型馬達52内部之熱，對中空型馬達52内部作良好 冷卻。 亦即，由於係直接使安裝空心鑽頭63之旋轉轴61旋 轉之所謂直接型馬達，故可使自此旋轉軸61送入貫通孔 61a之冷卻水沿高速旋轉之旋轉軸61之貫通孔61a内周面 流動，可大幅提高冷卻水之冷卻效率。藉此，單與將空氣 送入中空旋轉轴内者比較，即可變得極良好冷卻效率。 --------^--------- (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 18 311527 497322 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（19 ) 並且，由於無需冷卻用風扇，故可作成無送風聲音之 極寧靜、小型而輕量之挖掘裝置51，進一步，較諸利用風 扇之氣冷式，不會吸入切粉、灰塵，可消除吸入切粉、灰 塵造成之故障。 復由於即使停止旋轉轴61之旋轉，亦藉自旋轉轴61 後端部送入之冷卻水繼續冷卻，故可消除停止後不久來冷 ,卻造成的損壞。 又，由於使冷卻水沿旋轉轴6 1之貫通孔6 1 a内周面流 動，冷卻中空型馬達52之冷卻水送入空心鑽頭63内，此 後’供給至挖掘混凝土 C之鑽頭65之挖掘部位，故可用 冷卻水進行鑽頭65之挖掘部位之冷卻，進一步可以冷卻水 作為挖掘處所之潤滑劑，平穩挖掘。 並且’由於轉子67與旋轉轴61 —體固定，故中空型 馬達52内之熱自轉子67良好地傳導至旋轉轴61，可確實 >且良好地將中空型馬達52之熱傳導至沿此旋轉軸61之貫 通孔61 a内周面流動之冷卻水。 復由於中空型馬達52藉殼體66作成密閉構造，藉送 入旋轉軸61之貫通孔6la内之冷卻水冷卻中空型馬達，故 可面確保良好冷卻效率，一面嫁實阻止切粉、灰塵侵入 中空型馬達52内，藉此，可作成故障少的挖掘裝置51。 上述例子固然使用水來作為冷卻液，惟使用水以外冷 部效果優異之液體來作為此冷卻液，當然可獲得更佳冷卻 效果。 裝--------訂---------線 (請先閱讀背面之注意事項再填寫本頁) 私A诋尺度迥用T囷囤豕韧準（CNS)A4規格（210 x 297公釐） 19 311527The paper size is suitable for financial and family care standards (CNS) A4 (210 X 297 Public Love T 311527 -------- ^ -------- 1 (Please read the precautions on the back before filling in this (Page) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs X Printed by the Consumer Cooperatives 17 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 497322 A7 ------- B7 V. Description of the invention (18), that is, the through hole of the rotating shaft 61 The cooling water flowing in 6ia flows along the inner peripheral surface of the through-hole 6 1 a and passes through the rotating shaft 6 1 while absorbing the heat inside the hollow motor 52 and moving toward the front end, which is excellent for the interior of the hollow motor 52. The cooling progresses because the cooling water flows along the inner peripheral surface of the through hole 61a of the rotating shaft 61. The cooling water of the cooling hollow motor 5 2 is sent to the tube 64 of the hollow drill 6 3 and then supplied to the drill bit for excavating the concrete c. The excavation part of 65. With this, the drill bit 65 cools the excavation part with cooling water, and further, the cooling water is used as a lubricant for the excavation space of the iron head 65 to excavate good and bad together with the cutting powder and discharge it to the outside. The above digging device is self-plugging on one side The rear part of the rotating shaft 61 penetrating the rotor 67 sends cooling water supplied from a cooling water supply source, which is not shown in the drawing, to a through-hole 61a of the rotating shaft 61 through a rotating connector 71, and rotates The shaft 61 rotates, and the concrete C is excavated by the drill 65 of the hollow drill 63, so that the cooling water sent from the rear end flows along the inner peripheral surface of the through hole 6 1 a of the rotation shaft 6 1, thereby absorbing the hollow type through the rotation shaft. The heat inside the motor 52 cools the inside of the hollow motor 52. That is, since it is a so-called direct motor that directly rotates the rotary shaft 61 on which the hollow drill 63 is mounted, the rotary shaft 61 can be fed into the through-hole from here. The cooling water of 61a flows along the inner peripheral surface of the through hole 61a of the rotating shaft 61 that rotates at high speed, which can greatly improve the cooling efficiency of the cooling water. By this, it can become extremely polar when compared with the one that sends air into the hollow rotating shaft. Good cooling efficiency. -------- ^ --------- (Please read the precautions on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 18 311527 497322 Intellectual Property Bureau, Ministry of Economic Affairs Printed by the Industrial and Consumer Cooperatives A7 B7 V. Description of the invention (19) Moreover, since no cooling fan is required, it can be made into a very quiet, small and lightweight digging device 51 with no air supply sound. Further, compared with the air cooling using fans It will not inhale the cutting powder and dust, which can eliminate the trouble caused by the cutting powder and dust. Even if the rotation of the rotating shaft 61 is stopped, the cooling water sent from the rear end of the rotating shaft 61 will continue to cool. Eliminate the damage that came cold shortly after stopping, but caused. In addition, since the cooling water is caused to flow along the inner peripheral surface of the through-hole 6 1 a of the rotating shaft 61, the cooling water for cooling the hollow motor 52 is sent into the hollow drill 63, and is thereafter 'supplied' to the excavation site of the concrete drill 65 Therefore, cooling water can be used to cool the excavation part of the drill bit 65, and the cooling water can be used as a lubricant for the excavation space to dig smoothly. And 'Since the rotor 67 and the rotation shaft 61 are integrally fixed, the heat in the hollow motor 52 is well transmitted from the rotor 67 to the rotation shaft 61, and it is possible to reliably > and to conduct the heat of the hollow motor 52 to rotate along there Cooling water flowing on the inner peripheral surface of the through hole 61 a of the shaft 61. Since the hollow motor 52 has a closed structure by the casing 66, and the cooling motor is cooled by the cooling water sent into the through hole 6la of the rotary shaft 61, it can ensure good cooling efficiency and prevent cutting powder and dust from invading Inside the hollow motor 52, an excavator 51 with less trouble can be manufactured. Although the above example uses water as the cooling liquid, a liquid having an excellent effect in the cooling section other than water is used as the cooling liquid, and of course, a better cooling effect can be obtained. Install -------- order --------- line (please read the precautions on the back before filling this page) Private A 诋 standard uses T 囷 store 豕 tough standard (CNS) A4 specifications (210 x 297 mm) 19 311527