TWI244254B - Dust-proof structure for a sleeve bearing - Google Patents
Dust-proof structure for a sleeve bearing Download PDFInfo
- Publication number
- TWI244254B TWI244254B TW92132468A TW92132468A TWI244254B TW I244254 B TWI244254 B TW I244254B TW 92132468 A TW92132468 A TW 92132468A TW 92132468 A TW92132468 A TW 92132468A TW I244254 B TWI244254 B TW I244254B
- Authority
- TW
- Taiwan
- Prior art keywords
- dust
- bearing
- oil
- proof
- shaft
- Prior art date
Links
Landscapes
- Sliding-Contact Bearings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
1244254 五、發明說明(1) •【發明所屬之技術領域】 本發明係關於一種馬達軸承之防塵構造,特別是關於利 用一防塵片防止灰塵積聚於一具有潤滑油液之軸承 (sleeve bearing),並確保該軸承之油液循環回流之構 造。 【先前技術】 習用馬達軸承之組合構造,如第1圖所示,該馬達係由 一基座10、一定子20及一轉子30構成,而該基座1〇結合一 軸管11,該軸管11至少可容設一軸承(s 1 e e v e bearing)12。藉此,該轉子3〇之一軸桿31可穿設於該軸承 12之一軸孔120,使該轉子30可轉動的結合在該基座10 上。通常,該軸承(sleeve bearing)12所具有的潤滑油液 〔未繪示〕可隨著該軸桿3 1的轉動,而依序由該軸孔1 2 0 内壁、該軸承1 2之頂面、該軸承1 2之頂面周緣之一切 1 2 1流動至該軸承1 2及軸管11之間,再流回該軸承丨2之 部。因此’該軸承1 2之油液可自行產生循環,並潤滑該軸 孔120之表面’以減少該軸孔120及軸桿31之間的摩擦,進 而降低馬達旋轉噪音及可延長馬達使用壽命。 雖然該軸承12可減少馬達元件之損耗可&是當上述習用 馬達實際運轉時’該軸承12之油液容易飛滅溢出該轴管n 之外。再者,线中的灰塵容易進入該軸管",並積聚於 具有潤滑油液之轴承12上’而使灰塵與油液混合形成油污 90。由於該油污90受該軸承12頂面的油液帶動,因此將逐 漸累積於該切角121的位置,並造成油液無法順暢循環及1244254 V. Description of the invention (1) • [Technical field to which the invention belongs] The present invention relates to a dust-proof structure of a motor bearing, and in particular to the use of a dust-proof sheet to prevent dust from accumulating in a sleeve bearing with a lubricant fluid, And ensure the structure of the bearing's oil circulation. [Prior art] The combined structure of conventional motor bearings, as shown in Figure 1, the motor is composed of a base 10, a stator 20, and a rotor 30, and the base 10 is combined with a shaft tube 11, the shaft tube 11 can accommodate at least one bearing (s 1 eeve bearing) 12. Thereby, a shaft 31 of the rotor 30 can pass through a shaft hole 120 of the bearing 12, so that the rotor 30 can be rotatably coupled to the base 10. Generally, the lubricant fluid (not shown) of the bearing 12 can be sequentially driven by the inner wall of the shaft hole 1 2 and the top surface of the bearing 12 as the shaft 31 rotates. 2. Everything 1 2 1 on the periphery of the top surface of the bearing 12 flows between the bearing 12 and the shaft tube 11, and then flows back to the part of the bearing 丨 2. Therefore, 'the oil of the bearing 12 can circulate by itself and lubricate the surface of the shaft hole 120' to reduce the friction between the shaft hole 120 and the shaft 31, thereby reducing the rotation noise of the motor and extending the service life of the motor. Although the bearing 12 can reduce the loss of the motor components, it is that when the conventional motor is actually running, the oil of the bearing 12 is easy to fly out of the shaft tube n. Furthermore, the dust in the wire easily enters the shaft tube ", and accumulates on the bearing 12 having the lubricant liquid 'to mix the dust with the oil to form an oil stain 90. Since the oil stain 90 is driven by the oil on the top surface of the bearing 12, it will gradually accumulate at the position of the cut angle 121, causing the oil to circulate smoothly and
C:\_-5\F1VE ONnNENTS\PKy343.ptd 第6頁C: \ _- 5 \ F1VE ONnNENTS \ PKy343.ptd Page 6
12442541244254
五、發明說明(2) 再進入該轴承1 2及軸管1 1之間。結果,該油污g 〇阻絕油液 的循環,並造成該轴孔120及軸桿31之間缺少潤滑,進而 導致該轉子30的轉速降低、產生噪音及摩擦生熱,嚴重時 甚至導致該轴桿31卡死,而降低馬達使用壽命。 另一習用馬達轴承之組合構造,如美國專利第 6,3 3 6,7 4 5號「含油轴承及轉子之軸結合構造 〔Oil-Impregnated Bearing and Rotor ShaftV. Description of the invention (2) Reenter the bearing 12 and the shaft tube 1 1 again. As a result, the oil stain g0 obstructs the circulation of the oil and causes a lack of lubrication between the shaft hole 120 and the shaft 31, thereby reducing the rotation speed of the rotor 30, generating noise and frictional heat, and even causing the shaft in severe cases. 31 gets stuck, reducing motor life. Another conventional motor bearing combined structure, such as U.S. Patent No. 6, 3 3, 6, 7 4 5 "Oil-Impregnated Bearing and Rotor Shaft
Combination〕」及美國專利第6, 4 35, 722號「含油軸 結合改良構造〔Combination Structure for 之 馬達 油輛承 上蓋, 油痛 形上 常緊密 P且擋回 管之 缺少潤 $、輛 進 步 〇i 1-Impregnated Bearing〕」發明專利,其揭示-除了包含一基座、一定子、一轉子、一軸管及一含 之外,其係進一步在該含油軸承之頂面設置一门形 並使該軸桿在該Π形上蓋及含油軸承之間套設一定 且該含油軸承之外環面進一步開設數個回油槽道。 子運轉時,該门形上蓋及定位環可進一步用以防止 ,出,軸管,及防止灰塵進入該軸管。然而,該门 蓋、定位環、軸管及含油軸承之組合構造過於複 利於組裝作業。最重要的是,該门形上蓋之下緣通 的卡合在該含油軸承之頂面周緣〔切角處〕,因而 油槽道,並使得油液無法順利進入該含油軸承及 間,因而降低循環效率,並造成該軸孔及軸桿之 滑。結果,同樣導致轉速降低、產线音、摩^ 桿卡死,及降低馬達使用壽命。因此,: 改良上述馬達軸承之防塵構造。 要Combination] "and U.S. Patent No. 6, 4 35, 722," Oil-bearing shaft combined with improved structure [Combination Structure for the motor oil bearing cover, the oil pain is often tightly closed, and the return tube lacks lubrication, and the vehicle progresses. i 1-Impregnated Bearing] "invention patent, which reveals-in addition to including a base, a stator, a rotor, a shaft tube and a containment, it is further provided with a gate shape on the top surface of the oil-containing bearing and make the The shaft is fixed between the Π-shaped upper cover and the oil-containing bearing, and a plurality of oil return channels are further opened on the outer ring surface of the oil-containing bearing. When the sub-running, the door-shaped upper cover and the positioning ring can be further used to prevent, exit, the shaft tube, and prevent dust from entering the shaft tube. However, the combined structure of the door cover, the positioning ring, the shaft tube and the oil bearing is too complicated to facilitate the assembly operation. The most important thing is that the lower edge of the door-shaped upper cover is engaged with the peripheral edge of the top surface of the oil-bearing bearing (at the corner), so the oil channel can prevent the oil from entering the oil-bearing bearing and the circulation can be reduced. Efficiency, and cause slippage of the shaft hole and shaft. As a result, the rotation speed is reduced, the production line sound, the stick is stuck, and the service life of the motor is reduced. Therefore, the dustproof structure of the motor bearing is improved. To
1244254 五、發明說明(3) -- 有鑑於此,本發明改良上述之缺點,其係在一軸管内設 置一軸承及一防塵片,並在該軸承及防塵片之間形成至 一回油道。藉此該防塵片可防止灰塵進入該軸承,同時該 回油道亦可確保該軸承之潤滑油液順利循環流動。因此, 本發明確實能防止積聚油污、減少轉動摩擦、降低轉動嗓 音’並延長馬達使用壽命。 【發明内容】1244254 V. Description of the invention (3)-In view of this, the present invention improves the above-mentioned disadvantages, which is to set a bearing and a dustproof sheet in a shaft tube, and form an oil return channel between the bearing and the dustproof sheet. This prevents the dust from entering the bearing, and at the same time, the oil return channel can ensure the smooth circulation of the bearing's lubricating oil. Therefore, the present invention can surely prevent the accumulation of oil stains, reduce rotational friction, reduce rotational noise 'and prolong the service life of the motor. [Summary of the Invention]
本發明主要目的係提供一種馬達軸承之防塵構造,其係 在一軸管内設置一軸承及一防塵片,並在該軸承及防塵片 之間形成至少一回油道,而使本發明具有防止積聚油汚、 減少轉動摩擦、降低轉動噪音及延長馬達使用声a之功 根據本發明之馬達軸承之防塵構造,其包含— 、一 =slrv:rng)及一防塵片。該轴管可容設“严 2塵片。3軸承之—軸孔可穿設一轉子之— 上方’以防止灰塵積聚於該袖承。同 /防塵片及軸承之間可形成至少一回油道,以败進言 =承之油液循環流動,並維持該軸承及轴桿之間“滑The main purpose of the present invention is to provide a dust-proof structure for a motor bearing. A bearing and a dust-proof sheet are arranged in a shaft tube, and at least one oil return channel is formed between the bearing and the dust-proof sheet, so that the present invention can prevent the accumulation of oil pollution. 2. Reduce the friction of rotation, reduce the noise of rotation, and prolong the work of the motor. The dust-proof structure of the motor bearing according to the present invention includes-,-= slrv: rng) and a dust-proof plate. The shaft tube can accommodate "strict 2 dust pieces. 3 bearings-shaft holes can be passed through a rotor-above 'to prevent dust from accumulating on the sleeve. At least one oil return can be formed between the same / dust piece and the bearing In order to prevent failure, the fluid of the bearing circulates and maintains the "slip between the bearing and the shaft"
【實施方式】 確i;!本和其他目的、特徵、和優點能” 式,作詳細本發明較佳實施例’並配合所附s 第2圖揭示本發明第—實施例之馬達轴承之防塵構造之[Embodiment] The present invention and other objects, features, and advantages can be described in detail, and the preferred embodiment of the present invention will be described in detail. Of construction
C:\L0G0-5\FIVE aKriNENTS\PK9343.ptd 第8頁 1244254C: \ L0G0-5 \ FIVE aKriNENTS \ PK9343.ptd Page 8 1244254
五、發明說明(4) 分解立體圖;第3圖揭示本發明第一實施例之馬達軸承之 K構=广剖:圖?4圖揭示本發明第3圖之局部放 :圖,第5,不本發明第二實施例之防塵片 圖揭示本發明第二實施例之馬達轴承之防塵構丄 &局部放大圖;第7圖揭示本發明第三實施例之防塵片之 立體後視圖;第8圖揭示本發明第三實施例之馬達軸承之 防塵構造之組合局部放大圖;第9圖揭示本發明第四實施 例之馬達軸承之防塵構造之分解立體圖;第1〇圖揭示本發 明第四實施例之馬達軸承之防塵構造之組合剖視圖;第工j 圖揭示本發明第五實施例之馬達軸承之防塵構造之組合剖 視圖;及第1 2圖揭示本發明第六實施例之馬達軸承之防塵 構造之組合剖視圖。 本發明馬達軸承之防塵構造之部份構件相同於第1圖之 習用馬達軸承之構造,因而兩者相同部分採用相同圖^^標 示,其構造及功能不再予詳細贅述。 ’ 請參照第2及3圖所示,本發明第一實施例之馬達軸承之 防塵構造係包含一軸管11、一軸承(s!eeve bearing)12及 一防塵片1 3。該軸管1 1係一中空管體,其係可固定於一基 座1 0,並利用一頂凸緣1 1 1卡掣定位一定子2 〇。該軸承 (sleeve bear ing)12係選自可蓄含油液之各種自潤軸承, 例如粉末冶金製成之銅軸承,或經燒結製成之陶瓷軸承 等。該軸承1 2係容設於該軸管11内,且該軸承1 2設有一軸 孔120可供穿設一轉子30之一軸桿31。該軸承12之頂面周 緣通常形成一切角1 2 1。該防塵片1 3係可由塑膠或金屬材V. Description of the invention (4) Exploded perspective view; FIG. 3 shows the K structure of the motor bearing of the first embodiment of the present invention = wide section: diagram? Fig. 4 discloses a part of Fig. 3 of the present invention: Fig. 5, Fig. 5 shows a dust-proof sheet of the second embodiment of the present invention, reveals the dust-proof structure of the motor bearing of the second embodiment of the present invention & The figure shows a three-dimensional rear view of the dust-proof plate of the third embodiment of the present invention; FIG. 8 shows a partial enlarged view of the dust-proof structure of the motor bearing of the third embodiment of the present invention; FIG. 9 shows the motor of the fourth embodiment of the present invention An exploded perspective view of the dustproof structure of the bearing; FIG. 10 shows a combined sectional view of the dustproof structure of the motor bearing of the fourth embodiment of the present invention; FIG. J shows a combined sectional view of the dustproof structure of the motor bearing of the fifth embodiment of the present invention; And FIG. 12 shows a combined sectional view of a dustproof structure of a motor bearing according to a sixth embodiment of the present invention. Some components of the dust-proof structure of the motor bearing of the present invention are the same as those of the conventional motor bearing of FIG. 1, so the same parts of the two are marked with the same figure ^^, and the structure and function are not described in detail. ′ Please refer to FIGS. 2 and 3. The dust-proof structure of the motor bearing according to the first embodiment of the present invention includes a shaft tube 11, a bearing 12 and a dust-proof sheet 13. The shaft tube 11 is a hollow tube body, which can be fixed to a base 10, and uses a top flange 1 1 1 to latch a certain position 2 0. The bearing 12 is selected from various self-lubricating bearings that can store oil, such as copper bearings made of powder metallurgy, or ceramic bearings made by sintering. The bearing 12 is accommodated in the shaft tube 11, and the bearing 12 is provided with a shaft hole 120 for passing a shaft 31 of a rotor 30. The peripheral edge of the top surface of the bearing 12 usually forms all corners 1 2 1. The dust piece 1 3 is made of plastic or metal
C:\LOGO-5\FIVE CXNriNEKTS\PK9343.pui 第9頁 1244254 五、發明說明(5) 夤製成’其設有一軸孔131及至少一回油道132。該軸桿31 可穿設經過該轴孔1 31。該回油道1 3 2係放射狀的凹設形成 在遠防塵片13之底面。再者,該軸管11底部可另設一頂樓 件1 4及一扣環1 5,該頂撐件1 4係呈u形,其係可頂撐該軸 桿3 1,並容納潤滑油液。該扣環1 5則用以防止該軸桿3 1脫 離該軸承1 2。 請參照第3及4圖所示,當該基座1 〇、軸管丨丨、軸承丨2、 防塵片13、頂撐件14、扣環15、定子20及轉子3〇共同組裝 成 馬達時’该防塵片1 3係定位於該轴管11内,且該防塵 片1 3之底面接觸該軸承1 2之頂面。當該轉子3 〇運轉時,該 防塵片1 3可用以防止該軸承1 2之油液飛濺出該軸管丨丨。同 時’當灰塵進入該軸管11時,該防塵片丨3則可避免灰塵接 觸該軸承1 2,並使灰塵9 1堆積於該防塵片丨3之頂面q 者,由於該防塵片13之底面設有該回油道132,因而 液經由该軸承1 2之軸孔1 2 〇溢出時,該回油道丨3 2可使油液 流暢的通過該軸承1 2之頂面及周緣之切角丨21並進入該軸 承12與軸管Η外壁之間隙,以便使該油液形成循環流動。 如此,循環油液可保持該軸孔丨2〇的潤滑度,以避免該軸 孔1 2 0及軸桿3 1之間造成過度摩擦、轉動噪音,進而維持 該轉子30的準確轉速,並確保馬達使用壽命。 請參照第5及6圖所示,其揭示本發明第二實施例之馬達 轴承之防塵構造。相較於第一實施例,第二實施例之防塵 片13係由該軸孔131向上延伸形成一内環凸緣133。該内環 凸緣133可阻止並減少灰塵經由該防塵片13之軸孔131進C: \ LOGO-5 \ FIVE CXNriNEKTS \ PK9343.pui Page 9 1244254 V. Description of the invention (5) 夤 made ’It is provided with a shaft hole 131 and at least one return oil passage 132. The shaft 31 can pass through the shaft hole 1 31. The oil return channel 1 3 2 is radially recessed and formed on the bottom surface of the far dust-proof sheet 13. Furthermore, a bottom member 14 and a retaining ring 15 can be provided at the bottom of the shaft tube 11. The top support member 14 has a U-shape, which can support the shaft 31, and can contain lubricant oil. . The retaining ring 15 is used to prevent the shaft 3 1 from disengaging from the bearing 12. Please refer to Figs. 3 and 4, when the base 10, the shaft tube 丨, the bearing 丨 2, the dust sheet 13, the top support 14, the retaining ring 15, the stator 20 and the rotor 3 are assembled into a motor together. 'The dust-proof sheet 1 3 is positioned in the shaft tube 11, and the bottom surface of the dust-proof sheet 13 contacts the top surface of the bearing 12. When the rotor 30 is running, the dust-proof sheet 13 can be used to prevent the oil of the bearing 12 from splashing out of the shaft tube. At the same time, when the dust enters the shaft tube 11, the dust piece 丨 3 can prevent the dust from contacting the bearing 12 and cause dust 9 1 to accumulate on the top surface q of the dust piece 丨 3. The bottom surface is provided with the oil return channel 132, so that when the liquid overflows through the shaft hole 12 of the bearing 12, the oil return channel 32 allows the oil to smoothly pass through the top surface of the bearing 12 and the cut of the periphery. The angle 21 enters the gap between the bearing 12 and the outer wall of the shaft tube Η, so that the oil fluid forms a circulating flow. In this way, the circulating oil can maintain the lubricity of the shaft hole 20 to avoid excessive friction and rotation noise between the shaft hole 120 and the shaft 31, thereby maintaining the accurate speed of the rotor 30 and ensuring Motor life. Please refer to Figs. 5 and 6, which show a dustproof structure of a motor bearing according to a second embodiment of the present invention. Compared with the first embodiment, the dustproof sheet 13 of the second embodiment extends from the shaft hole 131 to form an inner ring flange 133. The inner ring flange 133 can prevent and reduce dust from entering through the shaft hole 131 of the dust plate 13.
1244254 五、發明說明(6) 入,且當灰塵91累積過多時,該内環凸緣133亦可用以阻 •擋灰塵91進入該軸孔131。同時,該内環凸緣133另可用 避免該軸承12之潤滑油液經由該軸孔丨31飛賤溢出。 請參照第7及8圖所示,其揭示本發明第三實施例之馬 軸承之防塵構造。由於第一實施例之回油道132之入口 小而不利潤滑油液流入,因此第三實施例之防塵片13係 一步由底面之軸孔1 3 1邊緣凹設形成一導油區〗34。藉此, 當該軸桿31轉動時,由該軸承12之軸孔12〇溢出的油液可, 先傾向流入該導油區1 34,並使油液更容易順暢的流入嗲 回油道1 3 2。 ^ 請參照第9及1 0圖所示,其揭示本發明第四實施例之馬 達軸承之防塵構造。相較於第一實施例,第四實施例同樣 包含一轴管11、一軸承12及一防塵片13,但該軸承12 步形成至少一回油道1 2 2,而該防塵片1 3僅設一軸孔j 邊回油道1 2 2至少形成於該軸承丨2之頂面,其較佳係延伸 至該軸承1 2之外環面及底面。藉此,當該防塵片丨3組裝於 該軸承1 2之頂面時,該防塵片丨3可用以防塵,而該軸承j 2 之回油道1 2 2則可用以使潤滑油液循環流動。 請參照第1 1圖所示,其揭示本發明第五實施例之馬達軸 承之防塵構造。相較於第一及四實施例,第五實施例之軸 承1 2僅設一軸孔1 2 〇,該防塵片丨3僅設〆軸孔1 3 1,但該防 塵片13選擇藉由緊配合或一體成型方式適當結合在該軸管 11内,因此使該防塵片丨3及軸承丨2之間保持一適當間距, 以形成一回油空間1 6〔回油道〕。藉此,該防塵片1 3同樣 '-5\FIVE OCKnNEKTS\PKy343.pid 第11頁 1244254 發明說明(7) 可用以防塵’而該軸承丨2及防塵片丨3之間的回油空間丨6同 樣可用以使潤滑油液循環流動。 清參照第1 2圖所示,其揭示本發明第六實施例之馬達軸 承之防塵構造。相較於第五實施例,第六實施例之防塵片 1 3進一步形成一環牆丨3 5及一外環凸緣丨3 6,該環牆丨3 5係 由該防塵片1 3之唇緣向上延伸形成,及該外環凸緣丨3 6係 由該壤牆1 3 5之頂端徑向向外延伸形成。藉此,在組裝 時’該環牆1 3 5及外環凸緣1 3 6可使該防塵片1 3快速定位結 合於該軸管1 1之頂凸緣丨丨1上,並使該防塵片丨3及軸承i 2 之間直接保持一預定之距離,以利形成該回油空間丨6〔回 油道〕,因而簡化組裝及加速形成該回油空間丨6。 如上所述,相較於第1圖之習用馬達軸承之防塵構造具 有容易形成油污9 0,該油污9 〇阻礙潤滑油液循環回流,及 油液易於飛藏溢出等缺點,第2圖之本發明藉由設置 塵片13,並於該防塵片13及軸承12之間形成各種回油^^ 132、122或回油空間16,其確實可防止積聚油污、減少轉 動摩擦、降低轉動噪音及延長馬達使用壽命。 / 雖然本發明已利用前述較佳實施例詳細揭示,然其並非 用以限定本發明’任何熟習此技藝者’在不脫離本^明之 精神和範圍内,當可作各種之更動與修改,因此本^明之 保護範圍當視後附之申請專利範圍所界定者為準。λ1244254 V. Description of the invention (6), and when dust 91 accumulates excessively, the inner ring flange 133 can also be used to prevent dust 91 from entering the shaft hole 131. At the same time, the inner ring flange 133 can be used to prevent the lubricating oil of the bearing 12 from overflowing through the shaft hole 31. Please refer to Figs. 7 and 8, which show the dustproof structure of the horse bearing according to the third embodiment of the present invention. Since the inlet of the oil return channel 132 of the first embodiment is small and unfavorable for the lubricating oil to flow in, the dust-proof sheet 13 of the third embodiment is recessed from the bottom of the shaft hole 1 3 1 to form an oil-conducting area 34. As a result, when the shaft 31 rotates, the oil that overflows from the shaft hole 120 of the bearing 12 may first flow into the oil conducting area 1 34 and make the oil flow into the oil passage 1 smoothly and easily. 3 2. ^ Please refer to Figs. 9 and 10, which show the dustproof structure of a motor bearing according to a fourth embodiment of the present invention. Compared with the first embodiment, the fourth embodiment also includes a shaft tube 11, a bearing 12, and a dust-proof sheet 13, but the bearing 12 forms at least one oil return channel 1 2 2 and the dust-proof sheet 1 3 only A shaft hole j side oil return channel 1 2 2 is provided at least on the top surface of the bearing 丨 2, and it preferably extends to the outer ring surface and the bottom surface of the bearing 12. Therefore, when the dust-proof sheet 丨 3 is assembled on the top surface of the bearing 12, the dust-proof sheet 丨 3 can be used to prevent dust, and the oil return channel 1 2 2 of the bearing j 2 can be used to circulate the lubricant fluid. . Please refer to FIG. 11 for a dustproof structure of a motor bearing according to a fifth embodiment of the present invention. Compared with the first and fourth embodiments, the bearing 12 of the fifth embodiment is provided with only one shaft hole 1 2 0, and the dust piece 丨 3 is provided only with the shaft hole 1 3 1, but the dust piece 13 chooses to tightly fit Or it is integrated into the shaft tube 11 in an integrated manner, so that a proper distance is maintained between the dust-proof plate 丨 3 and the bearing 丨 2 to form an oil return space 16 [oil return channel]. With this, the dust piece 1 3 is also the same as -5 \ FIVE OCKnNEKTS \ PKy343.pid page 11 1244254 Description of the invention (7) Can be used to prevent dust 'and the oil return space between the bearing 丨 2 and the dust piece 丨 3 The same can be used to circulate the lubricant fluid. Referring to Fig. 12, a dustproof structure of a motor bearing according to a sixth embodiment of the present invention is disclosed. Compared with the fifth embodiment, the dust-proof sheet 13 of the sixth embodiment further forms a ring wall 丨 3 5 and an outer ring flange 丨 36. The ring wall 丨 3 5 is formed by the lips of the dust-proof sheet 1 3 It is formed by extending upward, and the outer ring flange 丨 3 6 is formed by the top of the soil wall 135 extending radially outward. Therefore, during assembly, the ring wall 1 3 5 and the outer ring flange 1 3 6 can quickly position the dust sheet 13 to be combined with the top flange of the shaft tube 1 1 and make the dustproof. A predetermined distance is maintained directly between the plate 3 and the bearing i 2 to facilitate the formation of the oil return space 6 [oil return channel], thereby simplifying the assembly and accelerating the formation of the oil return space 6. As described above, compared to the dust-proof structure of the conventional motor bearing in FIG. 1, oil stains 90 are easily formed. The oil stains 90 obstruct the circulation of the lubricating oil and the shortcomings of the oil, and the oil is prone to flying. By providing a dust sheet 13 and forming various oil return spaces between the dust sheet 13 and the bearing ^^, 132, 122, or oil return space 16, it can really prevent the accumulation of oil stains, reduce rotational friction, reduce rotational noise, and prolong Motor life. / Although the present invention has been disclosed in detail by using the foregoing preferred embodiments, it is not intended to limit the present invention, 'any person skilled in the art' can make various changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of this specification shall be determined by the scope of the appended patent application. lambda
1244254 圖式簡單說明 【圖式簡單說明】 第1圖:習用馬達軸承之組合構造之組合剖視圖。 第2圖:本發明第一實施例之馬達軸承之防塵構造之分 解立體圖。 第3圖:本發明第一實施例之馬達軸承之防塵構造之組 合剖視圖。 第4圖:本發明第3圖之局部放大圖。 第5圖:本發明第二實施例之防塵片之立體圖。 第6圖:本發明第二實施例之馬達軸承之防塵構造之組 合局部放大圖。 第7圖:本發明第三實施例之防塵片之立體後視圖。 第8圖:本發明第三實施例之馬達軸承之防塵構造之組 合局部放大圖。 癒 第9圖:本發明第四實施例之馬達軸承之防塵構造 解立體圖。 胃 第1 0圖:本發明第四實施例之馬達軸承之防塵構造之組 合剖視圖。 第1 1圖:本發明第五實施例之馬達軸承之防塵構造之組 合剖視圖。 第1 2圖:本發明第六實施例之馬達軸承之防塵構造之組 合剖視圖。 圖號說明: 10 基座 11 軸管 111 頂凸緣1244254 Simple description of drawings [Simplified illustration of drawings] Figure 1: Combination sectional view of the combined structure of conventional motor bearings. Fig. 2: An exploded perspective view of a dustproof structure of a motor bearing according to the first embodiment of the present invention. Fig. 3: A sectional view of the dust-proof structure of the motor bearing according to the first embodiment of the present invention. Figure 4: A partially enlarged view of Figure 3 of the present invention. FIG. 5 is a perspective view of a dust-proof sheet according to a second embodiment of the present invention. Fig. 6 is a partially enlarged view of a dustproof structure of a motor bearing according to a second embodiment of the present invention. Figure 7: A three-dimensional rear view of a dust-proof sheet according to a third embodiment of the present invention. Fig. 8 is a partially enlarged view of a dustproof structure of a motor bearing according to a third embodiment of the present invention. Figure 9: An exploded perspective view of a dustproof structure of a motor bearing according to a fourth embodiment of the present invention. Stomach Fig. 10: A sectional view of a combination of a dustproof structure of a motor bearing according to a fourth embodiment of the present invention. Fig. 11 is a sectional view of a dustproof structure of a motor bearing according to a fifth embodiment of the present invention. Figure 12: A sectional view of a dustproof structure of a motor bearing according to a sixth embodiment of the present invention. Drawing number description: 10 base 11 shaft tube 111 top flange
l-5\FIVE OCKriNEKTS\PK9343.ptd 第13頁 1244254l-5 \ FIVE OCKriNEKTS \ PK9343.ptd Page 13 1244254
圖式簡單說明 12 軸 承 120 軸 孔 121 切 角 122 回 油 道 13 防 塵 片 131 轴 孔 132 回 油 道 133 内 環 凸 緣 134 導 油 區 135 環 牆 136 外 環 凸 緣 14 頂 撐 件 15 扣 環 16 回 油 空 間 20 定 子 30 轉 子 31 軸 桿 90 油 污 91 灰 塵 C:\LOGO-5\FIVE OCKTINENTS\PK9343.ptd 第14頁Brief description of the drawing 12 Bearing 120 Shaft hole 121 Cut-off angle 122 Oil return channel 13 Dust plate 131 Shaft hole 132 Oil return channel 133 Inner ring flange 134 Oil guide area 135 Ring wall 136 Outer ring flange 14 Top support 15 Retaining ring 16 Oil return space 20 Stator 30 Rotor 31 Shaft 90 Oil stain 91 Dust C: \ LOGO-5 \ FIVE OCKTINENTS \ PK9343.ptd Page 14
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW92132468A TWI244254B (en) | 2003-11-19 | 2003-11-19 | Dust-proof structure for a sleeve bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW92132468A TWI244254B (en) | 2003-11-19 | 2003-11-19 | Dust-proof structure for a sleeve bearing |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200518425A TW200518425A (en) | 2005-06-01 |
TWI244254B true TWI244254B (en) | 2005-11-21 |
Family
ID=37154750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW92132468A TWI244254B (en) | 2003-11-19 | 2003-11-19 | Dust-proof structure for a sleeve bearing |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI244254B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI768423B (en) * | 2020-08-05 | 2022-06-21 | 建準電機工業股份有限公司 | Bearing system and motor including the same |
-
2003
- 2003-11-19 TW TW92132468A patent/TWI244254B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TW200518425A (en) | 2005-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TWI303289B (en) | Fan, bearing structure and sleeve bearing thereof | |
US7052254B2 (en) | Oil lubricant retaining bearing structure for a fan | |
TWM271966U (en) | Oil-retaining structure | |
CN100394675C (en) | Motor | |
TWI244254B (en) | Dust-proof structure for a sleeve bearing | |
US7111988B2 (en) | Dustproof structure for a sleeve bearing | |
JP2018168952A (en) | Grease supplying bearing spacer/bearing assembly and spindle device | |
US9518606B2 (en) | Bearing apparatus with surface migration channels | |
JP2006234096A (en) | Sealed roller bearing | |
TWI387183B (en) | Lubrication of the rotating device | |
JP3061902U (en) | Structure of heat dissipation fan shaft | |
KR200313629Y1 (en) | Self-lubricating bearing structure | |
JP2003042273A (en) | Lubricating device for transmission | |
JP5598061B2 (en) | Tapered roller bearing device | |
JP2522633B2 (en) | Sliding bearing and underwater worm reducer using this sliding bearing | |
JPH084791A (en) | One-way clutch | |
JP2006226147A (en) | Scroll compressor | |
US20060285982A1 (en) | Dust-protective cycling lubricating structure of an electric fan | |
TWM331049U (en) | Fan and motor thereof | |
TWI333027B (en) | ||
CN2668920Y (en) | Dust-proofing structure for motor bearing | |
JP2517599B2 (en) | Thrust bearing | |
JP2733448B2 (en) | Gear motor and method of maintaining oil seal function in gear motor | |
TW200535347A (en) | Lubricant guiding structure for sleeve bearings | |
JP2007198405A (en) | Rolling bearing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |