TWI565879B - Friction hub with fan - Google Patents
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- TWI565879B TWI565879B TW100132763A TW100132763A TWI565879B TW I565879 B TWI565879 B TW I565879B TW 100132763 A TW100132763 A TW 100132763A TW 100132763 A TW100132763 A TW 100132763A TW I565879 B TWI565879 B TW I565879B
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Description
本發明是關於一種風扇用沖壓輪轂,這種風扇用沖壓輪轂是用來將風扇的葉輪安裝至驅動軸上。The present invention relates to a stamping hub for a fan for mounting an impeller of a fan to a drive shaft.
舉例來說,作為家庭用或工業用換氣扇而被廣泛利用的多葉片式風扇(sirocco fan),是離心式風扇的一種,根據使圓筒狀的葉輪在外殼內作回轉驅動而進行所需要的送風作用,具有能在廣流量範圍內進行運轉的優點。這種多葉片式風扇的葉輪,經由已被固定在支撐板的中心部上的輪轂,而被安裝於驅動源即電動馬達等的驅動軸上。For example, a sirocco fan widely used as a household or industrial ventilating fan is a type of centrifugal fan, and is required to perform a slewing drive of a cylindrical impeller in a casing. The air supply function has the advantage of being able to operate in a wide flow range. The impeller of the multi-blade fan is attached to a drive shaft of an electric motor or the like as a drive source via a hub that is fixed to a center portion of the support plate.
此外,作為上述輪轂,已知有一種如第10圖所示的鋁壓鑄製造的輪轂110、或是根據鍛造而成形的輪轂。此輪轂110,被構成有軸套部110B一體形成於凸緣部110A的中心,而在軸套部110B中,有根據機械加工而貫穿設置的軸孔110a,所述軸孔110a是用來讓馬達等的驅動軸105插入並貫穿。並且,有凹溝110b形成於軸套部110B的端面上。Further, as the above-described hub, a hub 110 made of aluminum die-casting as shown in Fig. 10 or a hub formed by forging is known. The hub 110 is integrally formed with the boss portion 110B at the center of the flange portion 110A, and in the boss portion 110B, there is a shaft hole 110a which is bored according to machining, and the shaft hole 110a is for A drive shaft 105 of a motor or the like is inserted and penetrated. Further, a groove 110b is formed on the end surface of the boss portion 110B.
上述輪轂110,在貫穿設置於該輪轂110的軸套部110B上的軸孔110a中,有驅動軸105穿過,並利用螺帽112來旋緊該驅動軸105中的自軸套部110B突出的螺紋部105a(經由一片平板狀的墊圈111),藉此將輪轂110安裝於驅動軸105上。此處,驅動軸105的螺紋部105a,其外周的一部分被切削成平坦狀,而使螺紋部105a形成為D字型,並且在墊圈111的中心部,形成D字型孔111a。於是,驅動軸105的D字型螺紋部105a嵌合於墊圈111的D字型孔111a,並且墊圈111嵌入已形成於輪轂110的軸套部110B上的凹溝110b中,藉此達成防止輪轂110相對於驅動軸105回轉的機制。The hub 110 has a drive shaft 105 passing through a shaft hole 110a formed in the boss portion 110B of the hub 110, and is screwed by the nut 112 to protrude from the sleeve portion 110B of the drive shaft 105. The threaded portion 105a (via a flat washer 111) is used to mount the hub 110 to the drive shaft 105. Here, the threaded portion 105a of the drive shaft 105 is partially cut into a flat shape, and the screw portion 105a is formed in a D shape, and a D-shaped hole 111a is formed in the center portion of the washer 111. Then, the D-shaped thread portion 105a of the drive shaft 105 is fitted into the D-shaped hole 111a of the washer 111, and the washer 111 is fitted into the groove 110b which has been formed on the boss portion 110B of the hub 110, thereby achieving the prevention of the hub. The mechanism by which 110 is rotated relative to the drive shaft 105.
不過,在上述壓鑄製造的輪轂110中,具有以下問題:該輪轂110需要作為防回轉零件的墊圈111,並且需要根據機械加工在輪轂110的軸套部110B上形成凹溝110b,因此零件數量與加工次數會增加,而無法避免成本上昇。又,壓鑄製造的輪轂110的材料費在成本中所佔的比例較高,這也是拉高輪轂110的成本的要素。However, in the above-described die-cast manufacturing of the hub 110, there is a problem that the hub 110 requires the washer 111 as an anti-rotation component, and it is necessary to form the groove 110b on the boss portion 110B of the hub 110 according to machining, so the number of parts is The number of processing increases, and the cost increase cannot be avoided. Moreover, the material cost of the hub 110 manufactured by die casting is relatively high in cost, which is also an element of the cost of pulling up the hub 110.
又,在專利文獻1中,提出一種如第11圖所示的輪轂210,該輪轂210是根據對鐵板等作沖壓加工來一體成形,但在此輪轂210中,是根據焊接式螺帽214與螺合在焊接式螺帽214上的螺栓215來達成將輪轂210安裝至驅動軸上的功效,而該焊接式螺帽214被焊接在該輪轂210的軸套部210B上,因此會有在進行焊接式螺帽214的焊接時,薄厚度的軸套部210B因焊接熱而發生變形、強韌度不足等的不良情況。Further, in Patent Document 1, a hub 210 as shown in Fig. 11 is proposed, which is integrally formed by press working on an iron plate or the like, but in the hub 210, it is based on a welded nut 214. The bolt 215 screwed onto the welded nut 214 is used to achieve the function of mounting the hub 210 to the drive shaft, and the welded nut 214 is welded to the sleeve portion 210B of the hub 210, so that there will be When the welding nut 214 is welded, the bush portion 210B having a small thickness is deformed by welding heat, and the strength is insufficient.
進而,在專利文獻2中,提出一種如第12圖所示的輪轂310,該輪轂310根據支撐板309的沖壓加工而與支撐板309一體成形。在此輪轂310中,採用以下構成:將固定螺絲315螺合於利用沖緣加工(burring)而形成為圓筒狀的母螺紋部310a上,並將此固定螺絲315的前端推至輪轂310的反折部310b上,以使該反折部310b密著於驅動軸305,藉此將輪轂310固定於驅動軸305上。因此,輪轂310有可能會變形,而導致在該輪轂310上發生強韌度不足或軸偏的情況。Further, Patent Document 2 proposes a hub 310 as shown in Fig. 12, which is integrally formed with the support plate 309 in accordance with press working of the support plate 309. In the hub 310, the fixing screw 315 is screwed to the female thread portion 310a formed into a cylindrical shape by burring, and the front end of the fixing screw 315 is pushed to the hub 310. The folded portion 310b is adhered to the drive shaft 305 so that the hub 310 is fixed to the drive shaft 305. Therefore, the hub 310 may be deformed, resulting in a situation of insufficient toughness or shaft misalignment on the hub 310.
因此,本申請人先前提出一種如第13圖所示的沖壓輪轂410(參照專利文獻3)。此沖壓輪轂410,具有圓板狀的凸緣部410A與圓筒狀的軸套部410B,上述凸緣部410A根據金屬板的沖壓加工來一體成形,上述軸套部410B,自該凸緣部410A的中心,往垂直於凸緣面的方向延伸出去,並與該凸緣部410A形成一體,並根據驅動軸405與螺合在該驅動軸405上的螺帽412,來將沖壓輪轂410與未圖示的風扇的葉輪一起以可自由裝卸的方式而被安裝至驅動軸405上,所述驅動軸405要插入、貫穿該軸套部410B。另外,雖然沒有圖示出來,但沖壓輪轂410被安裝在風扇的葉輪上。Therefore, the applicant has previously proposed a press hub 410 as shown in Fig. 13 (refer to Patent Document 3). The press hub 410 has a disk-shaped flange portion 410A and a cylindrical boss portion 410B. The flange portion 410A is integrally formed by press working of a metal plate, and the boss portion 410B is from the flange portion. The center of the 410A extends out in a direction perpendicular to the flange face and is integrated with the flange portion 410A, and presses the stamping hub 410 with the drive shaft 405 and the nut 412 screwed to the drive shaft 405. The impeller of a fan (not shown) is detachably attached to the drive shaft 405, and the drive shaft 405 is inserted into and penetrates the boss portion 410B. Further, although not shown, the press hub 410 is mounted on the impeller of the fan.
此沖壓輪轂410的軸套部410B的前端部上,有根據沖壓加工而一體成形的D字型孔部410a,該D型孔部410a是用來防止回轉,而在驅動軸405的前端部,形成有螺紋部405A。並且,在驅動軸405的螺紋部405A的外周,形成有平坦狀的D字型削除部405a,而在驅動軸405的規定位置上嵌有作為制動器的扣環411。The front end portion of the boss portion 410B of the press hub 410 has a D-shaped hole portion 410a integrally formed by press working, and the D-shaped hole portion 410a is for preventing rotation, and is at the front end portion of the drive shaft 405. A threaded portion 405A is formed. Further, a flat D-shaped cutout portion 405a is formed on the outer circumference of the screw portion 405A of the drive shaft 405, and a buckle 411 as a brake is fitted to a predetermined position of the drive shaft 405.
然後,為了要將固定住沖壓輪轂410而作成的葉輪,安裝在驅動軸405上,使驅動軸405穿過沖壓輪轂410的軸套部410B,並使驅動軸405的D字型螺紋部405A,穿過D字型孔部410a,該D字型孔部410a形成在沖壓輪轂410的軸套部410B的前端部上,並且為防止回轉用。然後,若將螺帽412螺合於驅動軸405中的自沖壓輪轂410的軸套部410B突出的螺紋部405A上並將螺帽412旋緊,則葉輪便會經由沖壓輪轂410而被安裝在驅動軸405上,並根據已形成在驅動軸405的螺紋部405A上的D字型削除部405a,契合(嚙合)於已形成在沖壓輪轂410的軸套部410B上的D字型孔部410a中,確實地達成防止葉輪相對於驅動軸405回轉的機制。Then, in order to fix the impeller hub 410, the impeller is mounted on the drive shaft 405 such that the drive shaft 405 passes through the boss portion 410B of the press hub 410, and the D-shaped threaded portion 405A of the drive shaft 405 is The D-shaped hole portion 410a is formed on the front end portion of the boss portion 410B of the press hub 410, and is used for preventing rotation. Then, if the nut 412 is screwed onto the threaded portion 405A of the drive shaft 405 protruding from the sleeve portion 410B of the punching hub 410 and the nut 412 is tightened, the impeller is mounted via the stamping hub 410. The drive shaft 405 is engaged (engaged) with the D-shaped hole portion 410a formed on the boss portion 410B of the press hub 410 in accordance with the D-shaped cut portion 405a formed on the thread portion 405A of the drive shaft 405. In the middle, a mechanism for preventing the impeller from rotating relative to the drive shaft 405 is surely achieved.
[先行技術文獻][Advanced technical literature]
(專利文獻)(Patent Literature)
專利文獻1:日本專利實開昭57-107996號公報。Patent Document 1: Japanese Patent Publication No. Sho 57-107996.
專利文獻2:日本專利實開昭57-164299號公報。Patent Document 2: Japanese Patent Publication No. Sho 57-164299.
專利文獻3:日本專利特開2002-039095號公報。Patent Document 3: Japanese Laid-Open Patent Publication No. 2002-039095.
然而,第13圖所示的由專利文獻3所提出的沖壓輪轂410中,有以下的問題:在將驅動軸405插入該軸套部410B中的時候,若兩者在圓周方向上稍有錯開,則形成在軸套部410B上的D字型孔部410a與形成在驅動軸405的螺紋部405A上的D字型削除部405a會不一致(沒有對準),因此驅動軸405將難以插入,使得組裝性較差。However, in the press hub 410 proposed by Patent Document 3 shown in Fig. 13, there is a problem that when the drive shaft 405 is inserted into the boss portion 410B, if the two are slightly staggered in the circumferential direction, The D-shaped hole portion 410a formed on the boss portion 410B does not coincide with the D-shaped cutout portion 405a formed on the screw portion 405A of the drive shaft 405 (not aligned), so the drive shaft 405 will be difficult to insert. This makes assembly inferior.
本發明係鑑於上述問題而進行,本發明的目的在於提供一種風扇用沖壓輪轂,該風扇用沖壓輪轂能夠使驅動軸輕易地插入。The present invention has been made in view of the above problems, and an object of the present invention is to provide a press hub for a fan which can easily insert a drive shaft.
為了達成上述目的,申請專利範圍第1項所述的發明,是一種風扇用沖壓輪轂,是要被安裝至風扇上的零件,根據沖壓加工而一體成形,且所述風扇用沖壓輪轂具有圓板狀的凸緣部與圓筒狀的軸套部,所述軸套部自該凸緣部的中心朝向垂直於凸緣面的方向而一體地延伸出去,且根據插入並貫穿該軸套部中的驅動軸與安裝於驅動軸上的固定零件,上述風扇用沖壓輪轂與上述風扇一起以可自由裝卸的方式而被安裝在上述驅動軸上,並且,所述風扇用沖壓輪轂的特徵在於:在上述軸套部的一部分,形成D字型孔部,並在該D字型孔部與軸套部的圓筒部之間,形成斜面狀導引部,所述導引部是用來導引上述驅動軸的插入。In order to achieve the above object, the invention of claim 1 is a stamping hub for a fan, which is a component to be mounted to a fan, integrally formed according to a press working, and the stamping hub for the fan has a circular plate a flange portion and a cylindrical sleeve portion integrally extending from a center of the flange portion toward a direction perpendicular to the flange surface, and inserted and penetrated through the sleeve portion The drive shaft and the fixed part mounted on the drive shaft, the fan press hub is detachably mounted on the drive shaft together with the fan, and the fan press hub is characterized in that A part of the boss portion forms a D-shaped hole portion, and a sloped guide portion is formed between the D-shaped hole portion and the cylindrical portion of the boss portion, and the guide portion is used for guiding Insertion of the above drive shaft.
申請專利範圍第2項所述的發明,是針對申請專利範圍第1項所述的發明,其中:根據沖壓加工使上述軸套部的一部分變形,藉此形成上述D字型孔部與上述導引部。The invention of claim 2 is the invention according to claim 1, wherein the D-shaped hole portion and the guide are formed by deforming a part of the boss portion by press working. Leading section.
若根據申請專利範圍第1項所述的發明,因為在已形成於風扇用沖壓輪轂的軸套部的一部分上的D字型孔部與軸套部的圓筒部之間,形成了斜面狀的導引部,所以即使在驅動軸插入軸套部時兩者在圓周方向上錯開,以致於軸套部的D字型孔部與驅動軸的D字型削除部不一致(沒有對準)的情況下,也能根據驅動軸的前端部與已形成於沖壓輪轂的軸套部上的斜面狀導引部的契合,來修正該驅動軸的圓周方向位置,而將驅動軸的D字型削除部導引至沖壓輪轂的D字型孔部,使兩者一致。因此,能夠輕易地將驅動軸插入沖壓輪轂,提高風扇的組裝性,並且根據已形成於沖壓輪轂的軸套部上的D字型孔部與驅動軸的D字型削除部的契合,確實地防止沖壓輪轂與風扇的葉輪相對於驅動軸作回轉。According to the invention of claim 1, the slanted surface is formed between the D-shaped hole portion formed in a part of the boss portion of the fan pressing hub and the cylindrical portion of the boss portion. The guide portion, so that even when the drive shaft is inserted into the boss portion, the two are staggered in the circumferential direction, so that the D-shaped hole portion of the sleeve portion is inconsistent (not aligned) with the D-shaped cut portion of the drive shaft In this case, the position of the drive shaft in the circumferential direction can be corrected based on the engagement of the front end portion of the drive shaft with the inclined guide portion formed on the boss portion of the press hub, and the D-shaped drive shaft can be removed. The part is guided to the D-shaped hole of the stamping hub to make the two match. Therefore, the drive shaft can be easily inserted into the press hub, the assemblability of the fan can be improved, and the D-shaped hole portion formed on the boss portion of the press hub can be surely engaged with the D-shaped cut portion of the drive shaft. The impeller and the impeller of the fan are prevented from rotating relative to the drive shaft.
若根據申請專利範圍第2項所述的發明,因為是利用沖壓加工來使沖壓輪轂的軸套部的一部分變形,藉此形成D字型孔部與導引部,所以不需要作為其他零件的防回轉零件以及機械加工,而削減了零件數量與加工次數,以謀求成本的降低。並且,若以金屬來構成沖壓輪轂與驅動軸,則能夠將兩者在強韌度上的差異抑制為較小,並且削減材料成本以及加工成本,藉此也可謀求沖壓輪轂成本的降低。According to the invention of claim 2, since a part of the boss portion of the press hub is deformed by press working, the D-shaped hole portion and the guide portion are formed, so that it is not required as another component. Anti-rotation parts and machining, reducing the number of parts and the number of processing, in order to reduce costs. Further, when the press hub and the drive shaft are formed of metal, the difference in strength between the two can be suppressed to be small, and the material cost and the processing cost can be reduced, whereby the cost of the press hub can be reduced.
以下,基於隨附圖式來說明本發明的實施形態。Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.
第1圖是多葉片式風扇的正視圖,第2圖是多葉片式風扇的破斷側剖面圖(沿第1圖的箭頭A方向來看而得到的破斷剖面圖),第3圖是第2圖的B部擴大剖面圖,第4圖是沿第3圖的C-C線的擴大剖面圖,第5圖是表示本發明的沖壓輪轂的安裝構造的分解斜視圖,第6圖是本發明的沖壓輪轂的正視圖,第7圖是本發明的沖壓輪轂的側視圖,第8圖是沿第6圖的D-D線的剖面圖,而第9圖是沿第8圖的E-E線的剖面圖。Fig. 1 is a front view of a multi-blade fan, and Fig. 2 is a broken side sectional view of the multi-blade fan (a broken sectional view seen in the direction of arrow A of Fig. 1), and Fig. 3 is FIG. 4 is an enlarged cross-sectional view taken along line CC of FIG. 3, FIG. 5 is an exploded perspective view showing a mounting structure of the press hub of the present invention, and FIG. 6 is an exploded perspective view of the present invention. Front view of the stamping hub, Fig. 7 is a side view of the stamping hub of the present invention, Fig. 8 is a sectional view taken along line DD of Fig. 6, and Fig. 9 is a sectional view taken along line EE of Fig. 8. .
第1圖及第2圖所示的多葉片式風扇1,被構成為在多葉片式風扇1的板金製外殼2內收納著可回轉自如的圓筒狀葉輪3,葉輪3以單邊支撐的狀態被安裝在電動馬達4的驅動軸5的端部上,所述電動馬達4是被安裝在外殼2的一端面上的驅動源。The multi-blade fan 1 shown in FIGS. 1 and 2 is configured such that a cylindrical impeller 3 that is rotatable is housed in the sheet metal casing 2 of the multi-blade fan 1, and the impeller 3 is supported by one side. The state is mounted on the end of the drive shaft 5 of the electric motor 4, which is a drive source mounted on one end face of the outer casing 2.
有圓形的吸入口2a開口於上述外殼2的另一端面(安裝有電動馬達4的面的相反側面)上(參照第1圖),此吸入口2a的周邊上,安裝著用來將空氣導入葉輪3中的喇叭口狀的進氣環6。並且,在外殼2內,形成渦卷狀的流路,且在外殼2的上部具有矩形的吐出口2b(參照第2圖)。A circular suction port 2a is opened to the other end surface of the outer casing 2 (opposite side surface to which the surface of the electric motor 4 is mounted) (refer to Fig. 1), and the periphery of the suction port 2a is provided for air The bellows-shaped intake ring 6 in the impeller 3 is introduced. Further, a spiral flow path is formed in the outer casing 2, and a rectangular discharge port 2b is provided in the upper portion of the outer casing 2 (see FIG. 2).
此外,上述葉輪3,在圓周方向上以等角度節距配置多數片扇葉(葉片)7而被成形為圓筒狀,在葉輪3的一端上安裝補強環8,並在葉輪3的另一端上安裝圓板狀的支撐板(背板)9。然後,將本發明的沖壓輪轂10固定在上述支撐板9的中心部,而經由沖壓輪轂10將葉輪3安裝在上述電動馬達4的驅動軸5上。Further, the impeller 3 is formed in a cylindrical shape by arranging a plurality of blades (blades) 7 at equal angular intervals in the circumferential direction, and a reinforcing ring 8 is attached to one end of the impeller 3, and at the other end of the impeller 3 A disc-shaped support plate (back plate) 9 is mounted thereon. Then, the press hub 10 of the present invention is fixed to the center portion of the support plate 9, and the impeller 3 is attached to the drive shaft 5 of the electric motor 4 via the press hub 10.
此處,基於第3圖~第9圖來說明本發明的上述沖壓輪轂10的詳細構成。Here, the detailed configuration of the above-described press hub 10 of the present invention will be described based on Figs. 3 to 9 .
本發明的沖壓輪轂10,是根據對鐵板等金屬板進行沖壓加工而一體成形,此沖壓輪轂10,具有:圓板狀的凸緣部10A與圓筒狀的軸套部10B,所述軸套部10B自該凸緣部10A的中心朝向垂直於凸緣面的方向而一體成形地延伸出去。The press hub 10 of the present invention is integrally formed by press working a metal plate such as an iron plate, and the press hub 10 has a disk-shaped flange portion 10A and a cylindrical boss portion 10B, the shaft The sleeve portion 10B extends integrally from the center of the flange portion 10A toward the direction perpendicular to the flange surface.
並且,凸緣狀的承座10C,一體成形於本實施形態的沖壓輪轂10的軸套部10B的前端部上,而在軸套部10B的軸方向中間部上,形成有凹部10D。該凹部10D,是利用沖壓加工使軸套部10B的軸方向中間部外周變形成凹陷狀,而藉此形成凹部10D。Further, the flange-shaped socket 10C is integrally formed on the front end portion of the boss portion 10B of the press hub 10 of the present embodiment, and the recess portion 10D is formed in the axially intermediate portion of the boss portion 10B. In the recessed portion 10D, the outer periphery of the intermediate portion in the axial direction of the boss portion 10B is formed into a concave shape by press working, whereby the recessed portion 10D is formed.
根據在沖壓輪轂10的軸套部10B上,形成上述凹部10D,如第8圖及第9圖所示,在該軸套部10B的內部,形成橫剖面為D字形狀的D字型孔部10a,且在該D字型孔部10a與圓筒部10b之間形成斜面狀的導引部10c,該導引部10c是用來導引上述驅動軸5的插入。此外,軸套部10B的圓筒部10b的內徑,被設定成比電動馬達4的驅動軸5的外徑大一些。The concave portion 10D is formed on the boss portion 10B of the press hub 10, and as shown in Figs. 8 and 9, a D-shaped hole portion having a D-shaped cross section is formed inside the boss portion 10B. 10a, and a slope-shaped guide portion 10c for guiding the insertion of the drive shaft 5 is formed between the D-shaped hole portion 10a and the cylindrical portion 10b. Further, the inner diameter of the cylindrical portion 10b of the boss portion 10B is set to be larger than the outer diameter of the drive shaft 5 of the electric motor 4.
又,在沖壓輪轂10的凸緣部10A的一端面(軸套部10B所延伸出去那一側的面)的同一圓周上,根據沖緣加工(burring),以等角度節距(60°節距)一體成形地突出設置了6個圓筒狀突起10d。此外,關於根據沖壓加工來進行的附加大凸緣的圓筒狀深度拉深(凸緣直徑為軸徑的2倍以上,且拉深的深度為軸徑的2倍以上),能夠將軸套部10B的深度拉深加工分割成多個步驟來進行。Further, on the same circumference of one end surface of the flange portion 10A of the press hub 10 (the surface on which the boss portion 10B extends), according to the burring, the equiangular pitch (60° section) Six cylindrical protrusions 10d are integrally formed to be integrally formed. In addition, regarding the cylindrical deep drawing of the large flange which is performed by press working (the flange diameter is twice or more the diameter of the shaft, and the depth of the drawing is twice or more the diameter of the shaft), the sleeve can be set. The deep drawing processing of the portion 10B is divided into a plurality of steps.
繼而,對用來將具有上述構成的沖壓輪轂10安裝至上述支撐板9以及驅動軸5上的構造進行說明。Next, a structure for attaching the press hub 10 having the above configuration to the support plate 9 and the drive shaft 5 will be described.
如第3圖所示,在上述支撐板9的中心部上,穿透設置了圓孔9a,該圓孔9a是用來讓沖壓輪轂10的軸套部10B貫穿,並且在該圓孔9a的周圍,於同一圓周上以等角度節距(60°節距)穿透設置了6個小口徑的圓孔9b,該等圓孔9b是用來讓形成在沖壓輪轂10的凸緣部10A上的上述圓筒狀突起10d貫穿。As shown in Fig. 3, on the central portion of the above-mentioned support plate 9, a circular hole 9a for penetrating the boss portion 10B of the press hub 10 and penetrating the hole 9a is provided. Around the circumference, six small-diameter circular holes 9b are formed penetrating at equal angular pitches (60° pitch) on the same circumference, and the circular holes 9b are formed on the flange portion 10A of the press hub 10. The cylindrical projection 10d is penetrated.
而且,如第3圖所示,使沖壓輪轂10的軸套部10B插過已穿透設置於支撐板9的中心部處的上述圓孔9a,並使突出設置於沖壓輪轂10的凸緣部10A上的圓筒狀突起10d插過已穿透設置於支撐板9上的上述圓孔9b,以使沖壓輪轂10的凸緣部10A密著於支撐板9,然後在此密著狀態下,使沖壓輪轂10的各圓筒狀突起10d中的從支撐板9突出的部分,向外擴展側並進行壓接,藉此使沖壓輪轂10被確實地固定在支撐板9的中心部,而該沖壓輪轂10的軸套部10B貫穿支撐板9的中心部而朝向葉輪3的內側突出。Further, as shown in Fig. 3, the boss portion 10B of the press hub 10 is inserted through the circular hole 9a which has been penetrated at the center portion of the support plate 9, and is protruded from the flange portion of the press hub 10. The cylindrical projection 10d on the 10A is inserted through the circular hole 9b which has been penetrated and provided on the support plate 9 so that the flange portion 10A of the press hub 10 is adhered to the support plate 9, and then in the closed state, The portion of each of the cylindrical projections 10d of the press hub 10 that protrudes from the support plate 9 is outwardly expanded and crimped, whereby the press hub 10 is securely fixed to the center portion of the support plate 9, and the The boss portion 10B of the press hub 10 penetrates the center portion of the support plate 9 and protrudes toward the inner side of the impeller 3 .
當要如上述般地將葉輪3安裝在電動馬達4的驅動軸5上時,所述葉輪3是利用壓接(孔環壓接)的方式來固定沖壓輪轂10與支撐板9而形成,則如第1圖及第2圖所示,先將上述進氣環6自外殼2拆下,然後以沖壓輪轂10為前端側,經由外殼2的吸入口2a將葉輪3推入外殼2內,使電動馬達4的驅動軸5穿過沖壓輪轂10的軸套部10B。When the impeller 3 is to be mounted on the drive shaft 5 of the electric motor 4 as described above, the impeller 3 is formed by fixing the press hub 10 and the support plate 9 by crimping (aperture crimping). As shown in FIGS. 1 and 2, the intake ring 6 is first detached from the outer casing 2, and then the press hub 10 is used as the front end side, and the impeller 3 is pushed into the outer casing 2 through the suction port 2a of the outer casing 2, so that the impeller 3 is pushed into the outer casing 2 through the suction port 2a of the outer casing 2, The drive shaft 5 of the electric motor 4 passes through the boss portion 10B of the press hub 10.
此處,如第5圖所示,在電動馬達4的驅動軸5的前端部上,形成有螺紋部5A與平坦狀的D字型削除部5a,且在驅動軸5的規定位置上,嵌有作為制動器的扣環11。Here, as shown in Fig. 5, a screw portion 5A and a flat D-shaped cutout portion 5a are formed at the distal end portion of the drive shaft 5 of the electric motor 4, and are embedded at a predetermined position of the drive shaft 5. There is a buckle 11 as a brake.
然後,如前述般地在使電動馬達4的驅動軸5穿過沖壓輪轂10的軸套部10B的狀態下,若將葉輪3與沖壓輪轂10一起推入,則在沖壓輪轂10與驅動軸5於圓周方向上錯開的情況下,如第9圖中的鏈線所示,形成於沖壓輪轂10的軸套部10B上的D字型孔10a與驅動軸5的D字型削除部5a會不一致(沒有對準),驅動軸5的前端部契合於已形成在沖壓輪轂10的軸套部10B上的斜面狀導引部10c。如此,在驅動軸5的前端部與已形成於沖壓輪轂10的軸套部10B上的斜面狀導引部10c契合的狀態下,若將葉輪3與沖壓輪轂10一起推入,則驅動軸5的圓周方向位置會被修正,該驅動軸5的D字型削除部5a會被導引至沖壓輪轂10的D字型孔部10a而使兩者一致。因此,能夠輕易地將驅動軸5插入沖壓輪轂10的軸套部10B中,提高葉輪3的組裝性,並且根據驅動軸5的D字型削除部5a與形成於沖壓輪轂10的軸套部10B上的D字型孔部10a的契合,確實地防止沖壓輪轂10與葉輪3相對於驅動軸5作回轉。Then, as described above, in a state where the drive shaft 5 of the electric motor 4 is passed through the boss portion 10B of the press hub 10, if the impeller 3 is pushed together with the press hub 10, the hub 10 and the drive shaft 5 are punched. When the circumferential direction is shifted, as shown by the chain line in Fig. 9, the D-shaped hole 10a formed in the boss portion 10B of the press hub 10 does not coincide with the D-shaped cut portion 5a of the drive shaft 5. (Not aligned), the front end portion of the drive shaft 5 is fitted to the inclined guide portion 10c formed on the boss portion 10B of the press hub 10. As described above, when the front end portion of the drive shaft 5 is engaged with the inclined guide portion 10c formed on the boss portion 10B of the press hub 10, when the impeller 3 is pushed together with the press hub 10, the drive shaft 5 is driven. The position in the circumferential direction is corrected, and the D-shaped cut-out portion 5a of the drive shaft 5 is guided to the D-shaped hole portion 10a of the press hub 10 to match the two. Therefore, the drive shaft 5 can be easily inserted into the boss portion 10B of the press hub 10, the assemblability of the impeller 3 can be improved, and the D-shaped cut-out portion 5a of the drive shaft 5 and the boss portion 10B formed in the press hub 10 can be improved. The engagement of the upper D-shaped hole portion 10a surely prevents the press hub 10 and the impeller 3 from rotating relative to the drive shaft 5.
如上述,驅動軸5穿過沖壓輪轂10的軸套部10B後,若將固定零件12與驅動軸5中的自沖壓輪轂10的軸套部10B突出的螺紋部5a螺合,並旋緊此固定零件12,則葉輪3全體便經由沖壓輪轂10而被安裝於驅動軸5上,且如前述,根據驅動軸5的D字型削除部5a與已形成於沖壓輪轂10的軸套部10B上的D字型孔部10a的契合,確實地防止葉輪3相對於驅動軸5作回轉。此外,在固定零件12上刻有反向螺紋,該螺紋的旋緊方向與驅動軸5的回轉方向一致。As described above, after the drive shaft 5 passes through the boss portion 10B of the press hub 10, the fixing member 12 is screwed into the screw portion 5a of the drive shaft 5 that protrudes from the boss portion 10B of the press hub 10, and is tightened. When the component 12 is fixed, the entire impeller 3 is attached to the drive shaft 5 via the press hub 10, and as described above, according to the D-shaped cut-out portion 5a of the drive shaft 5 and the boss portion 10B which has been formed on the press hub 10. The engagement of the D-shaped hole portion 10a surely prevents the impeller 3 from rotating relative to the drive shaft 5. Further, a reverse thread is engraved on the fixed part 12, and the screwing direction of the thread coincides with the direction of rotation of the drive shaft 5.
如上述般地在外殼2中將葉輪3安裝至電動馬達4的驅動軸5上之後,將進氣環6安裝在外殼2的吸氣口2a周邊上,以完成所有組裝作業。After the impeller 3 is mounted on the drive shaft 5 of the electric motor 4 in the outer casing 2 as described above, the intake ring 6 is mounted on the periphery of the suction port 2a of the outer casing 2 to complete all assembly work.
然後,若根據電動馬達4的驅動而以規定速度來回轉驅動驅動軸5,則經由沖壓輪轂10而被安裝於該驅動軸5上的葉輪3,在外殼2內亦以同一速度進行回轉,並且根據此葉輪3的回轉,使空氣一邊受到進氣環6的導引一邊自外殼2的吸氣口2a被導入葉輪3中,自葉輪3供給運動能量給此空氣而使空氣升壓之後,利用離心力將此空氣自葉輪3的周圍朝向徑方向的外側放出,而經由外殼2內的渦卷狀流路將空氣自外殼2的吐出口2b排出至未圖示的導風管等,藉此進行室內等的換氣。Then, when the drive shaft 5 is rotationally driven at a predetermined speed by the driving of the electric motor 4, the impeller 3 attached to the drive shaft 5 via the press hub 10 is also rotated at the same speed in the casing 2, and According to the rotation of the impeller 3, the air is introduced into the impeller 3 from the intake port 2a of the outer casing 2 while being guided by the intake ring 6, and the air is supplied from the impeller 3 to the air to boost the air. The centrifugal force releases the air from the periphery of the impeller 3 toward the outside in the radial direction, and the air is discharged from the discharge port 2b of the casing 2 to the air duct (not shown) through the spiral flow path in the casing 2, thereby performing the air flow. Ventilation in the room, etc.
如上述,在本實施形態中,在已形成於沖壓輪轂10的軸套部10B內部的D字型孔部10a與軸套部10B的圓筒部10b之間,形成了斜面狀的導引部10c,因此即使在驅動軸5插入軸套部10B時兩者在圓周方向上錯開,以致於軸套部10B的D字型孔部10a與驅動軸5的D字型削除部5a不一致(沒有對準)的情況下,也能根據驅動軸5的前端部與已形成於沖壓輪轂10的軸套部10B上的斜面狀導引部10c的契合來修正該驅動軸5的圓周方向位置,而將驅動軸5的D字型削除部5a導引至沖壓輪轂10的D字型孔部10a,使兩者一致。因此,能夠輕易地將驅動軸5插入沖壓輪轂10中,提高葉輪3的組裝性,並且根據已形成於沖壓輪轂10的軸套部10B上的D字型孔部10a與驅動軸5的D字型削除部5a的契合,確實地防止沖壓輪轂10與葉輪3相對於驅動軸5作回轉。As described above, in the present embodiment, a bevel-shaped guide portion is formed between the D-shaped hole portion 10a formed inside the boss portion 10B of the press hub 10 and the cylindrical portion 10b of the boss portion 10B. 10c, therefore, even when the drive shaft 5 is inserted into the boss portion 10B, the two are displaced in the circumferential direction, so that the D-shaped hole portion 10a of the boss portion 10B does not coincide with the D-shaped cut portion 5a of the drive shaft 5 (no In the case of the quasi-), the circumferential position of the drive shaft 5 can be corrected based on the engagement of the front end portion of the drive shaft 5 with the inclined guide portion 10c formed on the boss portion 10B of the press hub 10, and The D-shaped cut-out portion 5a of the drive shaft 5 is guided to the D-shaped hole portion 10a of the press hub 10 so as to match the two. Therefore, the drive shaft 5 can be easily inserted into the press hub 10, the assembly of the impeller 3 can be improved, and the D-shaped hole portion 10a and the drive shaft 5 which are formed on the boss portion 10B of the press hub 10 can be D-shaped. The engagement of the type cutting portion 5a reliably prevents the press hub 10 and the impeller 3 from rotating relative to the drive shaft 5.
又,在本實施形態中,是根據沖壓加工來使沖壓輪轂10的軸套部10B的一部分變形,藉此形成凹部10D,並在軸套部10B的內部形成D字型孔部10a與導引部10c,因此不需要作為其他零件的防回轉零件以及機械加工,而削減了零件數量與加工次數,以謀求成本的降低。並且,如本實施形態所是,若以金屬來構成沖壓輪轂10與驅動軸5,則能夠將兩者在強韌度上的差異抑制為較小,並且削減材料成本以及加工成本,藉此也可謀求沖壓輪轂10成本的降低。Further, in the present embodiment, a part of the boss portion 10B of the press hub 10 is deformed by press working to form the recess 10D, and the D-shaped hole portion 10a and the guide are formed inside the boss portion 10B. Since the portion 10c does not require anti-rotation parts and machining as other parts, the number of parts and the number of processing are reduced, and the cost is reduced. Further, according to the present embodiment, when the press hub 10 and the drive shaft 5 are configured by metal, the difference in strength between the two can be suppressed to be small, and the material cost and the processing cost can be reduced. The cost of the stamping hub 10 can be reduced.
此外,以上雖然特別地描述了將本發明適用於單側吸入式多葉片式風扇的沖壓輪轂的形態,但本發明當然亦可同樣地適用於兩側吸入式多葉片式風扇的沖壓輪轂、以及其他多葉片式風扇以外的風扇的沖壓輪轂。Further, although the above description has been specifically applied to the form of the press hub to which the present invention is applied to the one-side suction type multi-blade fan, the present invention is of course equally applicable to the press hub of the double-side suction type multi-blade fan, and A stamping hub for a fan other than a multi-blade fan.
1...多葉片式風扇1. . . Multi-blade fan
2...外殼2. . . shell
2a...外殼的吸入口2a. . . Housing inlet
2b...外殼的吐出口2b. . . Outlet of the outer casing
3...葉輪3. . . impeller
4...電動馬達4. . . electric motor
5...驅動軸5. . . Drive shaft
5A...驅動軸的螺紋部5A. . . Thread portion of the drive shaft
5a...驅動軸的D字型削除部5a. . . D-shaped cutting part of the drive shaft
6...進氣環6. . . Intake ring
7...葉片7. . . blade
8...補強環8. . . Reinforcement ring
9...支撐板9. . . Support plate
9a、9b...支撐板的圓孔9a, 9b. . . Circular hole of the support plate
10...沖壓輪轂10. . . Stamping wheel
10A...沖壓輪轂的凸緣部10A. . . Stamping the flange of the hub
10B...沖壓輪轂的軸套部10B. . . Bushing part of the stamping hub
10C...沖壓輪轂的承座10C. . . Stamping hub bearing
10D...沖壓輪轂的凹部10D. . . Stamping the recess of the hub
10a...軸套部的D字型孔部10a. . . D-shaped hole part of the sleeve part
10b...軸套部的圓筒部10b. . . Cylinder part of the sleeve part
10c...軸套部的導引部10c. . . Guide portion of the sleeve portion
10d...沖壓輪轂的圓筒狀突起10d. . . Cylindrical protrusion of the stamping hub
11...扣環11. . . Buckle
12...固定零件12. . . Fixed part
第1圖是多葉片式風扇的正視圖。Figure 1 is a front elevational view of a multi-blade fan.
第2圖是多葉片式風扇的破斷側面圖(沿第1圖的箭頭A方向來看而得到的破斷面圖)。Fig. 2 is a broken side view of the multi-blade fan (a broken sectional view seen in the direction of arrow A in Fig. 1).
第3圖是第2圖的B部擴大剖面圖。Fig. 3 is an enlarged cross-sectional view showing a portion B of Fig. 2;
第4圖是沿第3圖的C-C線的擴大剖面圖。Fig. 4 is an enlarged cross-sectional view taken along line C-C of Fig. 3.
第5圖是表示本發明的沖壓輪轂的組裝構造的分解斜視圖。Fig. 5 is an exploded perspective view showing the assembled structure of the press hub of the present invention.
第6圖是本發明的沖壓輪轂的正視圖。Figure 6 is a front elevational view of the stamping hub of the present invention.
第7圖是本發明的沖壓輪轂的側視圖。Figure 7 is a side view of the stamping hub of the present invention.
第8圖是沿第6圖的D-D線的剖面圖。Fig. 8 is a cross-sectional view taken along line D-D of Fig. 6.
第9圖是沿第8圖的E-E線的剖面圖。Fig. 9 is a cross-sectional view taken along line E-E of Fig. 8.
第10圖是表示鋁壓鑄製造的先前的多葉片式風扇用輪轂的組裝構造的分解斜視圖。Fig. 10 is an exploded perspective view showing the assembled structure of the conventional multi-blade fan hub manufactured by aluminum die-casting.
第11圖是先前的沖壓輪轂的斜視圖。Figure 11 is a perspective view of a prior stamping hub.
第12圖是先前的沖壓輪轂的剖面圖。Figure 12 is a cross-sectional view of a prior stamping hub.
第13圖是表示先前的沖壓輪轂的組裝構造的分解斜視圖。Fig. 13 is an exploded perspective view showing the assembled structure of the conventional press hub.
4...電動馬達4. . . electric motor
5...驅動軸5. . . Drive shaft
5A...驅動軸的螺紋部5A. . . Thread portion of the drive shaft
5a...驅動軸的D字型削除部5a. . . D-shaped cutting part of the drive shaft
9a...支撐板的圓孔9a. . . Circular hole of the support plate
9b...支撐板的圓孔9b. . . Circular hole of the support plate
10...沖壓輪轂10. . . Stamping wheel
10A...沖壓輪轂的凸緣部10A. . . Stamping the flange of the hub
10B...沖壓輪轂的軸套部10B. . . Bushing part of the stamping hub
10C...沖壓輪轂的承座10C. . . Stamping hub bearing
10D...沖壓輪轂的D字型孔部10D. . . D-shaped hole part of the stamping hub
10a...軸套部的D字型孔部10a. . . D-shaped hole part of the sleeve part
10b...軸套部的圓筒部10b. . . Cylinder part of the sleeve part
10c...軸套部的導引部10c. . . Guide portion of the sleeve portion
10d...沖壓輪轂的圓筒狀突起10d. . . Cylindrical protrusion of the stamping hub
11...扣環11. . . Buckle
12...固定零件12. . . Fixed part
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010202671A JP5758600B2 (en) | 2010-09-10 | 2010-09-10 | Fan press hub |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201211396A TW201211396A (en) | 2012-03-16 |
TWI565879B true TWI565879B (en) | 2017-01-11 |
Family
ID=45883484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW100132763A TWI565879B (en) | 2010-09-10 | 2011-09-09 | Friction hub with fan |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP5758600B2 (en) |
CN (2) | CN102400953B (en) |
HK (1) | HK1165846A1 (en) |
TW (1) | TWI565879B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5758600B2 (en) * | 2010-09-10 | 2015-08-05 | 東プレ株式会社 | Fan press hub |
KR101389331B1 (en) * | 2012-04-03 | 2014-04-29 | 전범수 | Sirocco fan |
CN104564845B (en) * | 2013-10-11 | 2017-07-21 | 英业达科技有限公司 | Fixture and its fan structure |
JP6700827B2 (en) * | 2016-02-10 | 2020-05-27 | 日立ジョンソンコントロールズ空調株式会社 | Blower |
CN109469644B (en) * | 2018-12-29 | 2020-07-31 | 宁波朗迪叶轮机械有限公司 | Axial flow fan blade |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08247089A (en) * | 1995-03-14 | 1996-09-24 | Toshiba Corp | Ventilation fan installation device |
JP2002039095A (en) * | 2000-07-27 | 2002-02-06 | Topre Corp | Press hub for sirocco fan |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6086063U (en) * | 1983-11-15 | 1985-06-13 | 株式会社東芝 | Rotating electric machine fan mounting device |
JPS63105799U (en) * | 1986-12-26 | 1988-07-08 | ||
JPH02139397U (en) * | 1989-04-27 | 1990-11-21 | ||
JP3924912B2 (en) * | 1998-04-10 | 2007-06-06 | 株式会社デンソー | Blower |
JP5758600B2 (en) * | 2010-09-10 | 2015-08-05 | 東プレ株式会社 | Fan press hub |
-
2010
- 2010-09-10 JP JP2010202671A patent/JP5758600B2/en active Active
-
2011
- 2011-09-09 CN CN201110281359.7A patent/CN102400953B/en active Active
- 2011-09-09 TW TW100132763A patent/TWI565879B/en active
- 2011-09-09 CN CN2011203511405U patent/CN202209307U/en not_active Expired - Lifetime
-
2012
- 2012-05-31 HK HK12105334.0A patent/HK1165846A1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08247089A (en) * | 1995-03-14 | 1996-09-24 | Toshiba Corp | Ventilation fan installation device |
JP2002039095A (en) * | 2000-07-27 | 2002-02-06 | Topre Corp | Press hub for sirocco fan |
Also Published As
Publication number | Publication date |
---|---|
JP2012057564A (en) | 2012-03-22 |
TW201211396A (en) | 2012-03-16 |
CN202209307U (en) | 2012-05-02 |
HK1165846A1 (en) | 2012-10-12 |
JP5758600B2 (en) | 2015-08-05 |
CN102400953B (en) | 2016-06-29 |
CN102400953A (en) | 2012-04-04 |
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