TWM608102U - Ball screw - Google Patents
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- TWM608102U TWM608102U TW109214143U TW109214143U TWM608102U TW M608102 U TWM608102 U TW M608102U TW 109214143 U TW109214143 U TW 109214143U TW 109214143 U TW109214143 U TW 109214143U TW M608102 U TWM608102 U TW M608102U
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Abstract
一種滾珠螺桿,包含一螺帽、一螺桿軸、兩個循環件及多個滾珠。該螺帽形成有一內螺旋溝槽、兩個定位孔及一中回流孔。該螺桿軸穿設於該螺帽內且形成有一與該內螺旋溝槽連通的外螺旋溝槽,該外螺旋溝槽的一部分與該內螺旋溝槽的一部分共同構成一循環通道。該等循環件沿著該螺帽的該軸向反向設置,各該循環件穿設於對應的該定位孔內且卡掣於該內螺旋溝槽,各該循環件形成有一連通於該中回流孔一端與該循環通道一端之間的端回流孔。該等滾珠容置於該循環通道、該等端回流孔及該中回流孔內。藉此,使得各該循環件能夠穩固地固定在該螺帽內。A ball screw includes a nut, a screw shaft, two circulating parts and a plurality of balls. The nut is formed with an inner spiral groove, two positioning holes and a middle return hole. The screw shaft passes through the nut and forms an outer spiral groove communicating with the inner spiral groove, and a part of the outer spiral groove and a part of the inner spiral groove jointly form a circulation channel. The circulating members are arranged in the opposite direction along the axial direction of the nut, each circulating member penetrates the corresponding positioning hole and is locked in the inner spiral groove, and each circulating member is formed with a connection to the inner spiral groove. An end return hole between one end of the middle return hole and one end of the circulation channel. The balls are contained in the circulation channel, the end return holes and the middle return holes. Thereby, each of the circulating parts can be firmly fixed in the nut.
Description
本新型是有關於一種滾珠螺桿,特別是指一種具有循環件的滾珠螺桿。The new model relates to a ball screw, in particular to a ball screw with circulating parts.
滾珠螺桿是藉由能夠循環作動的滾珠與螺帽、螺桿軸及循環件相配合,以減少螺帽與螺桿軸之間相對轉動的摩擦力而得到平順的線性傳動效果。The ball screw is matched with the nut, screw shaft and circulating parts through the recirculating ball to reduce the friction between the nut and the screw shaft to obtain a smooth linear transmission effect.
現有側安裝式的循環件要組裝於螺帽時,通常是先將循環件安裝於螺帽的卡槽內,接著,再透過螺絲穿設於循環件並螺鎖於螺帽的螺孔內,以將循環件鎖固於螺帽。然而,前述透過螺絲鎖固的方式,使得滾珠螺桿的組成構件數量增加,從而造成整體製造成本較高且組裝過程較為複雜不便。When the existing side-mounted circulating part is to be assembled to the nut, the circulating part is usually first installed in the slot of the nut, and then the circulating part is inserted through the screw and screwed into the screw hole of the nut. To lock the circulating parts on the nut. However, the aforementioned method of screw locking increases the number of components of the ball screw, resulting in higher overall manufacturing costs and more complicated and inconvenient assembly processes.
因此,本新型之一目的,即在提供一種能夠克服先前技術的至少一個缺點的滾珠螺桿。Therefore, one of the objectives of the present invention is to provide a ball screw that can overcome at least one of the disadvantages of the prior art.
於是,本新型滾珠螺桿,包含一螺帽、一螺桿軸、兩個循環件,及多個滾珠。Therefore, the new ball screw includes a nut, a screw shaft, two circulating parts, and a plurality of balls.
該螺帽形成有一內螺旋溝槽、兩個相間隔且連通該內螺旋溝槽的定位孔,及一介於該等定位孔中間的中回流孔,該等定位孔沿該螺帽的一軸向相間隔排列。該螺桿軸穿設於該螺帽內且形成有一與該內螺旋溝槽連通的外螺旋溝槽,該外螺旋溝槽的一部分與該內螺旋溝槽的一部分共同構成一循環通道。該等循環件沿著該螺帽的該軸向反向設置,各該循環件穿設於對應的該定位孔內且卡掣於該內螺旋溝槽,各該循環件形成有一連通於該中回流孔一端與該循環通道一端之間的端回流孔。該等滾珠容置於該循環通道、該等端回流孔及該中回流孔內。The nut is formed with an inner spiral groove, two positioning holes spaced apart and connected to the inner spiral groove, and a middle return hole between the positioning holes, and the positioning holes are along an axial direction of the nut Arranged at intervals. The screw shaft passes through the nut and forms an outer spiral groove communicating with the inner spiral groove, and a part of the outer spiral groove and a part of the inner spiral groove jointly form a circulation channel. The circulating members are arranged in the opposite direction along the axial direction of the nut, each circulating member penetrates the corresponding positioning hole and is locked in the inner spiral groove, and each circulating member is formed with a connection to the inner spiral groove. An end return hole between one end of the middle return hole and one end of the circulation channel. The balls are contained in the circulation channel, the end return holes and the middle return holes.
本新型的滾珠螺桿,各該循環件包括一穿設於對應的該定位孔內的定位柱,及一卡掣於該內螺旋溝槽的側卡掣柱,該定位柱界定出該端回流孔。In the ball screw of the present invention, each of the circulating parts includes a positioning column penetrating the corresponding positioning hole, and a side locking column that is locked to the inner spiral groove, and the positioning column defines the end return hole .
本新型的滾珠螺桿,該定位柱具有一外周面,及一連接於該外周面內端的內端面,該側卡掣柱凸設於該外周面且部分凸出該內端面而嵌入該外螺旋溝槽內。In the ball screw of the present invention, the positioning column has an outer circumferential surface and an inner end surface connected to the inner end of the outer circumferential surface. The side latching column is protruding from the outer circumferential surface and partially protrudes from the inner end surface to be embedded in the outer spiral groove槽内。 In the slot.
本新型的滾珠螺桿,該側卡掣柱一體地凸設於該定位柱並與其構成連續構造,使得各該循環件為單一獨立構件。In the ball screw of the present invention, the side latching column is integrally projected on the positioning column and forms a continuous structure with the positioning column, so that each of the circulating parts is a single independent component.
本新型的滾珠螺桿,各該循環件包括一穿設於對應的該定位孔內的定位柱,及一凸設於該定位柱一側的側卡掣柱,該定位柱界定出該端回流孔,該側卡掣柱卡掣於該內螺旋溝槽且部分嵌入該外螺旋溝槽內。In the ball screw of the present invention, each of the circulating parts includes a positioning column penetrating through the corresponding positioning hole, and a side latching column protruding from one side of the positioning column, and the positioning column defines the end return hole , The side locking pin is locked in the inner spiral groove and partially embedded in the outer spiral groove.
本新型的滾珠螺桿,各該定位孔為一圓形孔,各該循環件的該定位柱及該側卡掣柱各自為一圓形柱。In the ball screw of the present invention, each positioning hole is a circular hole, and the positioning column and the side latching column of each circulating member are each a circular column.
本新型之功效在於:各該循環件藉由該定位柱穿設於對應的該定位孔內,以及該側卡掣柱卡掣於該內螺旋溝槽內,使得各該循環件能夠穩固地固定在該螺帽內。由於各該循環件與該螺帽之間不需額外透過如螺絲的鎖固件鎖固便能夠穩固地固定在一起,因此,能降低該滾珠螺桿的組成構件數量,以提升組裝便利性並降低整體製造成本。The effect of the present invention is that each of the circulating parts is inserted into the corresponding positioning hole through the positioning pillars, and the side latching pillars are locked in the inner spiral groove, so that the circulating parts can be firmly fixed Inside the nut. Since each of the circulating parts and the nut can be firmly fixed together without additional locking members such as screws, the number of components of the ball screw can be reduced, so as to improve the convenience of assembly and reduce the overall manufacturing cost.
在本新型被詳細描述之前,應當注意在以下的說明內容中,類似的元件是以相同的編號來表示。Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.
參閱圖1及圖2,是本新型滾珠螺桿100的一實施例,該滾珠螺桿100包含一螺帽1、一螺桿軸2、兩個循環件3,及多個滾珠4。Referring to FIGS. 1 and 2, it is an embodiment of the
參閱圖2及圖3,該螺帽1包括一內周面11、一外周面12,及兩個端面13、14。該內周面11界定出一用以供該螺桿軸2穿設的通孔15,該通孔15沿該螺帽1的一軸向A延伸。該外周面12相反於該內周面11。該等端面13、14沿該軸向A相間隔,該通孔15介於該等端面13、14之間。該螺帽1的該內周面11朝該外周面12方向凹陷形成有一內螺旋溝槽16,該內螺旋溝槽16介於該等端面13、14之間並與該通孔15連通。該螺帽1形成有兩個定位孔17,及一中回流孔18。該等定位孔17沿該螺帽1的該軸向A相間隔排列且各自延伸於該內周面11與該外周面12之間,該等定位孔17連通該內螺旋溝槽16。在本實施例中,各該定位孔17為一圓形孔。該中回流孔18介於該等定位孔17中間,該中回流孔18沿該螺帽1的該軸向A延伸。2 and 3, the nut 1 includes an inner
該螺桿軸2用以穿設於該螺帽1的該通孔15內,該螺桿軸2形成有一能與該內螺旋溝槽16連通的外螺旋溝槽21。該外螺旋溝槽21的一部分能與該內螺旋溝槽16的一部分共同構成一循環通道P。The
參閱圖3、圖4及圖5,該等循環件3沿著該螺帽1的該軸向A反向設置,各該循環件3包括一定位柱31,及一側卡掣柱32。在本實施例中,各該循環件3是例如由金屬以一體成型方式所製成,該側卡掣柱32一體地凸設於該定位柱31一側並與該定位柱31構成連續構造,使得各該循環件3為單一獨立構件。藉此,能降低各該循環件3的製造成本。該定位柱31為一用以穿設於對應的該定位孔17內的圓形柱,該定位柱31具有一外周面311,及一連接於該外周面311內端的內端面312。該定位柱31界定出一端回流孔313,該端回流孔313是由該外周面311一側延伸至該外周面311另一側及該內端面312,該端回流孔313具有一位於該外周面311一側的第一開口314,及一位於該外周面311另一側的第二開口315,該第一開口314與該第二開口315相間隔約90度。該端回流孔313的該第一開口314及該第二開口315分別用以連通該中回流孔18一端與該循環通道P一端。該側卡掣柱32為一凸設於該外周面311相反於該第二開口315一側且部分凸出該內端面312的圓形柱,該側卡掣柱32用以卡掣於該內螺旋溝槽16並且能嵌入該外螺旋溝槽21內。Referring to FIGS. 3, 4 and 5, the circulating
參閱圖3、圖5及圖6,該等滾珠4用以設置於該循環通道P、該等端回流孔313及該中回流孔18內,並且能在該循環通道P、該等端回流孔313及該中回流孔18所共同構成的一循環
路徑內循環滾動。
Referring to Figures 3, 5 and 6, the
參閱圖2、圖3及圖5,欲將該螺桿軸2、該等循環件3及該等滾珠4組裝於該螺帽1時,首先,將該螺桿軸2的一部分經由該端面13側穿設於該螺帽1的該通孔15內,使該螺桿軸2不遮蔽住鄰近於該端面13的對應的該定位孔17。隨後,把其中一個該循環件3經由該端面14側穿設於該通孔15內,使該循環件3的該定位柱31及該側卡掣柱32分別對齊於對應的該定位孔17及該內螺旋溝槽16。接著,將該定位柱31朝對應的該定位孔17移動並穿伸於其內,當該側卡掣柱32卡掣於該內螺旋溝槽16時,該定位柱31便無法繼續於對應的該定位孔17內移動及轉動,使得該循環件3能穩固地固定在該螺帽1。之後,將該等滾珠4依序經由該端面14側穿設於該通孔15以安裝在該螺帽1的該內螺旋溝槽16內,同時旋轉該螺桿軸2,使該等滾珠4依序穿入該循環通道P內。Referring to Figures 2, 3 and 5, when the
參閱圖2、圖3及圖6,在該等滾珠4裝到另一個該定位孔17之前,將另一個該循環件3依照前述組裝方式進行組裝,使另一個該循環件3的該定位柱31穿設於另一個該定位孔17內,以及該側卡掣柱32卡掣於該內螺旋溝槽16。之後,依照前述方式進行其餘的該等滾珠4的組裝,使該等滾珠4能容置於該循環通道P、該等端回流孔313及該中回流孔18內。Referring to Figures 2, 3, and 6, before the
各該循環件3藉由該定位柱31穿設於對應的該定位孔17內,在組裝過程中能起到預先定位的作用,以防止該定位柱31於對應的該定位孔17內移動的過程中沿著垂直於該定位孔17的延伸方向任意晃動。各該循環件3藉由該側卡掣柱32卡掣於該內螺旋溝槽16內,能起到防止該定位柱31於對應的該定位孔17轉動的效果,使得該端回流孔313的該第一開口314及該第二開口315分別能準確地對齊並連通於該中回流孔18及該循環通道P。藉此,使得各該循環件3不需額外透過其他的鎖固件的鎖固便能夠穩固地固定在該螺帽1內。Each circulating
此外,各該循環件3藉由該側卡掣柱32部分凸出該內端面312而嵌入該外螺旋溝槽21內的方式,使得該側卡掣柱32能穩定地定位在該螺桿軸2上。再者,藉由各該定位孔17為圓形孔,以及各該循環件3的該定位柱31及該側卡掣柱32各自為圓形柱,使得前述結構在設計及製造上非常簡單,從而能降低製造成本。In addition, each of the circulating
綜上所述,本實施例的該滾珠螺桿100,各該循環件3藉由該定位柱31穿設於對應的該定位孔17內,以及該側卡掣柱32卡掣於該內螺旋溝槽16內,使得各該循環件3能夠穩固地固定在該螺帽1內。由於各該循環件3與該螺帽1之間不需額外透過如螺絲的鎖固件鎖固便能夠穩固地固定在一起,因此,能降低該滾珠螺桿100的組成構件數量,以提升組裝便利性並降低整體製造成本,故確實能達成本新型之目的。To sum up, in the
惟以上所述者,僅為本新型之實施例而已,當不能以此限定本新型實施之範圍,凡是依本新型申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾,皆仍屬本新型專利涵蓋之範圍內。However, the above are only examples of the present model, and should not be used to limit the scope of implementation of the present model, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.
100:滾珠螺桿 1:螺帽 11:內周面 12:外周面 13:端面 14:端面 15:通孔 16:內螺旋溝槽 17:定位孔 18:中回流孔 2:螺桿軸 21:外螺旋溝槽 3:循環件 31:定位柱 311:外周面 312:內端面 313:端回流孔 314:第一開口 315:第二開口 32:側卡掣柱 4:滾珠 A:軸向 P:循環通道 100: Ball screw 1: nut 11: Inner peripheral surface 12: Outer peripheral surface 13: end face 14: end face 15: Through hole 16: inner spiral groove 17: positioning hole 18: Medium return hole 2: Screw shaft 21: Outer spiral groove 3: Loop parts 31: Positioning column 311: Outer peripheral surface 312: inner end face 313: End return hole 314: first opening 315: second opening 32: Side card latch 4: Ball A: Axial P: Circulation channel
本新型之其他的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中: 圖1是本新型滾珠螺桿的一實施例的一立體圖; 圖2是該實施例的一立體分解圖,說明一螺帽、一螺桿軸、兩個循環件,及多個滾珠之間的組裝關係; 圖3是沿圖1中的III-III線所截取的一剖視圖,說明各該循環件的一定位柱穿設並定位於一對應的定位孔內,以及各該循環件的一端回流孔連通於該螺帽的一中回流孔一端; 圖4是該實施例的該等循環件的一立體圖; 圖5是沿圖1中的V-V線所截取的一剖視圖,說明各該循環件的一側卡掣柱卡掣於該螺帽的一內螺旋溝槽內,以及各該循環件的該端回流孔連通於一循環通道一端;及 圖6是沿圖1中的VI-VI線所截取的一剖視圖。 The other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, among which: Figure 1 is a perspective view of an embodiment of the new ball screw; Figure 2 is a three-dimensional exploded view of the embodiment, illustrating the assembly relationship between a nut, a screw shaft, two circulating parts, and a plurality of balls; Fig. 3 is a cross-sectional view taken along the line III-III in Fig. 1, illustrating that a positioning post of each circulating member is penetrated and positioned in a corresponding positioning hole, and one end of the circulating member is connected to the return hole One end of the return hole in the nut; Figure 4 is a perspective view of the circulating parts of the embodiment; Figure 5 is a cross-sectional view taken along the line V-V in Figure 1, illustrating that one side of the loop member is locked in an inner spiral groove of the nut, and the loop member The end return hole is connected to one end of a circulation channel; and Fig. 6 is a cross-sectional view taken along the VI-VI line in Fig. 1.
100:滾珠螺桿 100: Ball screw
1:螺帽 1: nut
11:內周面 11: Inner peripheral surface
12:外周面 12: Outer peripheral surface
13:端面 13: end face
14:端面 14: end face
15:通孔 15: Through hole
16:內螺旋溝槽 16: inner spiral groove
17:定位孔 17: positioning hole
2:螺桿軸 2: Screw shaft
21:外螺旋溝槽 21: Outer spiral groove
3:循環件 3: Loop parts
31:定位柱 31: Positioning column
32:側卡掣柱 32: Side card latch
4:滾珠 4: Ball
A:軸向 A: Axial
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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TW109214143U TWM608102U (en) | 2020-10-27 | 2020-10-27 | Ball screw |
CN202022935114.9U CN214146458U (en) | 2020-10-27 | 2020-12-10 | Ball screw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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TW109214143U TWM608102U (en) | 2020-10-27 | 2020-10-27 | Ball screw |
Publications (1)
Publication Number | Publication Date |
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TWM608102U true TWM608102U (en) | 2021-02-21 |
Family
ID=75783417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW109214143U TWM608102U (en) | 2020-10-27 | 2020-10-27 | Ball screw |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN214146458U (en) |
TW (1) | TWM608102U (en) |
-
2020
- 2020-10-27 TW TW109214143U patent/TWM608102U/en unknown
- 2020-12-10 CN CN202022935114.9U patent/CN214146458U/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN214146458U (en) | 2021-09-07 |
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