1261403 五、發明說明（1) 【發明所屬之技術頜域】 本發明係為/種具減速齒輪組的輪齡民4 是指專用於電動自行車、電動車的輪轂馬遠处結構，特別 【先前技術】 運、〜構設計。 請參閱第一圖所示，此為使用於電動白" ^ 内，具有減速齒輪組的輪轂馬達結構；其中仃車的輪轂10 m心軸u的組設，係穿設過一側馬達殼;2的車^=^ 再以心軸11端部套設於殼蓋1 2 1内的軸承丨4而 … 齒輪組15則組設於馬達殼12及殼架16之間；藉此< 達的t轉 ，力:透過心軸11端部的輸出齒輪17 ’齒合‘動減速齒‘ ，-且1 5傳動減速運轉，再帶動輪轂丨〇轉動輸出帶動電動自行 車；此外，於馬達殼12及殼架16外側，分別各固_有一固 定#令輪轂馬達可透過該二固定㈣鎖固於電動自 订車輪叉1 9處運作； 值得注意的是’前述具減速齒輪組的輪轂馬達結構， :二際使用後發現’其各部結構的承受力不佳，有諸多故 ^問題發生，而不被採用，說明如下： 具減速齒輪組的輪轂馬達其運轉負載力，係大部分集 位於減速齒輪組與輪出齒輪之間，而心軸配設有輸出齒 ‘ 2 ="卩，，懸空的自由端，馬達心軸的運轉完全依賴位 高，而及中#又的—個輪承承載；除非各構件的精密度相當 ;確：：：在負栽狀態下配設有輸出齒輪的自由端無法 實齒合；；將=:置，而致使輪出齒輪無法與減速齒輪組確1261403 V. INSTRUCTION DESCRIPTION (1) [Technical jaw region to which the invention pertains] The present invention is a wheel-in-the-ear structure of a gearbox for an electric bicycle or an electric vehicle. 】 Transport, ~ design. Please refer to the first figure. This is the hub motor structure with the reduction gear set used in the electric white "^; the hub 10 m spindle u of the brakes is set through the one side motor casing. 2; ^2 ^ Then the end of the mandrel 11 is sleeved in the bearing 1 4 in the cover 1 2 1 and the gear set 15 is assembled between the motor casing 12 and the frame 16; thereby < T turn, force: through the output shaft 17 at the end of the mandrel 11 'toothed 'moving gear ', and - 15 drive deceleration, and then drive the hub 丨〇 rotation output to drive the electric bicycle; in addition, the motor casing 12 and the outer side of the frame 16, respectively, a fixed_a fixed # so that the hub motor can be locked by the two fixed (four) locks on the electric custom wheel fork 19; it is worth noting that the aforementioned wheel motor structure with the reduction gear set , : After the use of the second use, it was found that 'the bearing capacity of each part is not good, there are many problems. It is not used, as explained below: The running load force of the hub motor with the reduction gear set is mostly set to decelerate. Between the gear set and the wheel-out gear, and the mandrel is equipped with an output tooth ' 2 =&quo t; 卩,, the free end of the suspension, the operation of the motor spindle depends entirely on the height of the position, and the load of the wheel is again; unless the precision of each component is equal; indeed::: in the state of the load The free end of the output gear can not be engaged; the =: set, so that the wheel gear can not be combined with the reduction gear set
1261403 五、發明說明（2) 其一，馬達心轴無法位於中心位置運轉，所以輸出齒 輪與減速齒輪組的齒合受力不均（齒輪單側過鬆或緊），尤 其是馬達受重力負載運轉時，將導致輸出齒輪與減速齒輪 之間發生受力不均的齒崩狀況； 其二，馬達心軸無法位於中心位置運轉，所以輸出齒 輪與減速齒輪組的齒合受力不均（齒輪單側過鬆或緊），當 齒合過鬆時會有運轉噪音問題； 其三，馬達心軸無法位於甲心位置運轉，所以輸出齒 輪與減速齒輪組的齒合受力不均（齒輪單側過鬆或緊），輪 轂馬達運轉時會發生嚴重震動問題；馬達心軸未精確位於 準確的中心位置（偏心運轉），嚴重時更會導致完全無法運 轉； 經過以上的說明可知，具減速齒輪組的輪轂馬達其運 轉負載力，係大部分集中位於減速齒輪組與輸出齒輪之 間，而前述輪轂馬達結構上的主要問題，均是在於馬達心 軸具輸出齒輪的自由端無法準確位於中心位置所導致； 再者，由於心軸配設有輸出齒輪的端部係為自由端，該自 由端容易受到減速齒輪組的組配影響而偏移，導致馬達心 轴在組配時即偏移中心位置，造成馬達的齒崩、噪音、震 動等問題。 目前產業界透過將減速齒輪組及輸出齒輪改以斜齒結 構、提昇構件精準度等方法改善，不僅成本提高且效果不 彰；因此若能在不大幅變更原有結構型態的前提下，使馬 達心軸於產業界組配時，即可位於準確的中心位置，且即1261403 V. INSTRUCTIONS (2) First, the motor spindle cannot be operated at the center position, so the gears of the output gear and the reduction gear set are unevenly coupled (the gear is too loose or tight on one side), especially the motor is subjected to gravity load. During operation, the tooth gap of the output gear and the reduction gear will be uneven. Second, the motor spindle cannot be operated at the center position, so the gears of the output gear and the reduction gear set are unevenly distributed (gear One side is too loose or tight), there will be running noise when the teeth are too loose; Third, the motor spindle cannot be operated at the center of the heart, so the gears of the output gear and the reduction gear are unevenly distributed (gear list) If the side of the hub motor is running, serious vibration problems will occur; the motor spindle is not accurately located at the exact center position (eccentric operation), and in severe cases, it will be completely inoperable; The running load force of the group of hub motors is mostly concentrated between the reduction gear set and the output gear, and the main problems in the structure of the aforementioned hub motor, Both are caused by the fact that the free end of the motor shaft output gear cannot be accurately located at the center position; furthermore, since the end of the mandrel with the output gear is a free end, the free end is easily assembled by the reduction gear set. The effect is offset, causing the motor spindle to shift to the center position when assembled, causing problems such as tooth collapse, noise, and vibration of the motor. At present, the industry has improved the method of changing the reduction gear set and the output gear to a helical tooth structure and improving the accuracy of the component, which not only increases the cost but also has an ineffective effect; therefore, if the original structural type is not greatly changed, When the motor spindle is assembled in the industry, it can be located at the exact center position, and
1261403 五、發明說明（3) 使馬達承受重力負載，亦不影響馬達心軸位於中心位置， 則可有效解決前述諸多缺陷，而符合產業界的實際需求。 【發明内容】 本發明之主要目的，係在於提供一種具減速齒輪組的 車明較馬達結構，本發明特別於馬達殼配設有第/終端軸 承’而於齒輪架内配設有第二終端軸承；馬達轉孑可透過 第一、二終端軸承及中置軸承作為運轉承載，即使馬達受 到重力負載，心軸仍可保持位中心位置運轉；據使心軸上 勺輸出齒輪得與減速齒輪組的齒合平均，解決避免馬達心 轴偏心運轉造成的齒崩、噪音、震動等問題。 【實施方式】 關於本發明為達成上述目的，所採用之技術、手段及 功效’茲舉一較佳可行實施例並配合圖式詳細說明如后； 首先’請配合參閱第二、三、四圖所示，本發明實施例所 提供之一種具減速齒輪組的輪轂馬達結構，主要係由馬 達、齒輪架及減速齒輪組所構成，並可將輪轂馬達組設於 輪轂1 0内部空間；其中： 該馬達20，係由一定子21、一轉子22、一心軸23及馬 達殼24所構成者，定子21與馬達殼24固結，轉子22則為心 轴23所穿設，心軸23 —端套設於馬達殼241 —端側的第一 終端軸承2 5，而心軸2 3的另端則穿設過另侧馬達殼2 4 2的 中置軸承26，並以一輸出齒輪27穿固設於心軸23，俾令馬 達2〇可透過輸出齒輪27作為馬達20轉動力輸出；另，該輸 出齒輪27亦可直接成型於心軸23為一體結構；1261403 V. INSTRUCTIONS (3) To make the motor bear the gravity load and not affect the central position of the motor, it can effectively solve the above-mentioned defects and meet the actual needs of the industry. SUMMARY OF THE INVENTION The main object of the present invention is to provide a vehicle structure with a reduction gear set, the present invention is particularly characterized in that the motor casing is provided with a first/terminal bearing 'and a second terminal is disposed in the carrier. Bearing; motor switch can be used as the running bearing through the first and second end bearings and the middle bearing. Even if the motor is subjected to gravity load, the mandrel can still maintain the center position; according to the spindle output gear and the reduction gear set The average of the teeth is solved to avoid problems such as tooth breakage, noise, and vibration caused by the eccentric operation of the motor spindle. [Embodiment] The present invention has been made in order to achieve the above object, and the preferred embodiments of the present invention are described in detail with reference to the drawings. First, please refer to the second, third, and fourth figures. As shown in the embodiment of the present invention, a hub motor structure having a reduction gear set is mainly composed of a motor, a carrier and a reduction gear set, and the hub motor can be assembled in the inner space of the hub 10; The motor 20 is composed of a stator 21, a rotor 22, a mandrel 23 and a motor casing 24. The stator 21 is fixed to the motor casing 24, and the rotor 22 is bored by the mandrel 23, and the mandrel 23 is end-to-end. The first end bearing 25 is sleeved on the end side of the motor casing 241, and the other end of the mandrel 23 is passed through the center bearing 26 of the other side motor casing 242, and is fixed by an output gear 27. It is disposed on the mandrel 23, and the motor 2 is permeable to the output gear 27 as the motor 20 rotational force output; the output gear 27 can also be directly formed on the mandrel 23 as an integral structure;
1261403 五、發明說明（4) 該齒輪架3〇，係組設於馬達殼242 一側，於齒輪架3〇 與馬達殼242之間可組設有樞軸31 ;而於齒輪架3〇的内端 面組設有一第二終端柏承32 ; 該減速齒輪組4 0 ’係由減速齒輪4 1組設於齒輪架3 〇的樞軸 3 1構成；減速齒輪組4 0與馬達2 0 一端的輸出齒輪2 7齒人， 且令心軸2 3端部與第一終、軸承3 2齒合，於減逮齒^組4 〇 與輪轂1 0之間通常會配設有單向離合為5 〇作為馬達動力與 輪轂1 0之間的傳遞連結或切離’並於馬達殼2 4 1及齒輪架 3 〇與輪轂1 〇之間配設有轴承6 〇 1 6 0 2 ;此外，於齒輪架3 〇 及馬達殼241其一端面，可各固設一固定轴28 33，供與電 動自行車的輪又組設（圖未示）； 以上所述即為本發明各構件及結構之組配關係位置， 本發明可將馬達軸心兩端，分別透過軸承強制準確限定於 軸心位置，避免構件因組配過程或構件本身精度而影響整 體結構強度及位置準確；茲將其使用狀態詳細說明如下： 請參閱第二、四圖所示，本發明特別於馬達殼24 1配 設有第一終端轴承2 5，而於齒輪架3 0内配設有第二終端軸 承32 ’進行構件組配時，轉子22心軸23的兩自由端恰可位 f第一、二終端軸承2 5 3 2内，進行強制準確定位組配； 藉此馬達轉子2 2可透過第一、二終端輪承2 5 3 2及中置車由 f 26作為運轉承載，即使馬達20受到重力負載，心軸23仍 可保持位中心位置運轉；據使心軸2 3上的輸出齒輪2 7得與 減速輪組4 〇的減速齒輪4 1齒合平均，解決避免馬達心軸 23偏心運轉造成的齒崩、噪音、震動等問題。1261403 V. INSTRUCTION DESCRIPTION (4) The carrier 3〇 is assembled on one side of the motor casing 242, and a pivot 31 can be arranged between the carrier 3〇 and the motor casing 242; The inner end face group is provided with a second terminal boring 32; the reduction gear set 40' is composed of a pivot shaft 31 assembled from the reduction gear 4 1 to the carrier 3 ;; the reduction gear set 40 and the motor 20 end The output gear 2 is 7 teeth, and the end of the mandrel 23 is meshed with the first end and the bearing 3 2 , and a one-way clutch is usually provided between the reduction gear set 4 〇 and the hub 10 . 〇 as a transmission connection or cut-off between the motor power and the hub 10 and a bearing 6 〇1 6 0 2 between the motor casing 24 1 and the carrier 3 〇 and the hub 1 ;; The frame 3 and the motor casing 241 are respectively provided with a fixed shaft 28 33 for assembling with the wheel of the electric bicycle (not shown); the above is the combination of the components and structures of the present invention. In relation to the position, the two ends of the motor shaft can be forcibly and accurately limited to the axial center position through the bearing, thereby avoiding the component due to the assembly process or the component itself. Accuracy affects the overall structural strength and position accuracy; the state of use is described in detail as follows: Please refer to the second and fourth figures, the present invention is particularly suitable for the motor housing 24 1 is provided with a first terminal bearing 25, and the gear When the second end bearing 32' is disposed in the frame 30, the two free ends of the mandrel 23 of the rotor 22 can be placed in the first and second terminal bearings 2 5 3 2 for forced and accurate positioning. Therefore, the motor rotor 2 2 can pass through the first and second terminal wheel bearings 2 5 3 2 and the center car is operated by f 26 as a running load, and even if the motor 20 is subjected to gravity load, the mandrel 23 can still maintain the position of the center position; The output gear 27 on the mandrel 2 3 is toothed and averaged with the reduction gear 4 1 of the reduction wheel set 4 , to solve problems such as tooth breakage, noise, vibration, and the like caused by avoiding the eccentric operation of the motor spindle 23 .
第10頁 1261403 五、發明說明（5) 馬達2 0 的載重及行 軸2 3上的輸 失敗的主因 齒輪27的自 計，即使當 終端軸承2 5 負載受力的 中心位置， 轉； 值得注 行構件組配 一、二終端 中心位置， 陷0 動自行車 特別是心 結構設§十 設有輸出 的馬達設 透過第一 為馬達2 0 一端偏離 的穩定運 出者，電 心軸2 3， 傳統馬達 心轴2 3配 而本發明 心軸2 3可 承32，作 載受力而 中心位置 係透過心軸23作為轉動力輸 駛負載，係直接傳遞予馬達 出#輪2 7及減速齒輪組4 〇 ; ，即是心轴2 3負载運轉時， 由端偏離中心位置所造成； 馬達承受重力負載，該馬達 、中置軸承2 6及第二終端軸 維持，避免馬達心轴2 3因負 並確保馬達心轴2 3維持位於 意的是，透過本發明的結構設計，產業界在進 之時，馬達心轴2 3即可在組配的同時，透過第 軸承2 5 3 2及中置軸承2 6限制心軸2 3準確位於 可解決傳統結構組配時即造成心軸2 3偏移的缺Page 101261403 V. INSTRUCTIONS (5) The load of the motor 20 and the failure of the main cause gear 27 on the line shaft 2 3, even when the terminal bearing 25 is loaded with the center position of the force, it is worth noting The row member group is equipped with one or two terminal center positions, trapped in the bicycle, especially the heart structure is set to § ten. The output motor is provided through the first one for the motor 20, the end of the stable carrier, the electric spindle 2 3, the traditional The motor spindle 2 3 is matched with the mandrel 2 3 of the present invention. The mandrel 2 3 can bear 32, and the center position is transmitted through the mandrel 23 as a rotational force, and is directly transmitted to the motor out #wheel 27 and the reduction gear set. 4 〇; , that is, the mandrel 2 3 load operation, caused by the end off center position; the motor is subjected to gravity load, the motor, the center bearing 26 and the second terminal shaft are maintained, avoiding the motor spindle 2 3 due to negative And to ensure that the motor spindle 2 3 is maintained, through the structural design of the present invention, the motor spindle 2 3 can be assembled while passing through the first bearing 2 5 3 2 and the center. Bearing 2 6 limits the mandrel 2 3 accurately located I.e., the conventional structure must set the spindle cause offset when missing 23 with