公开(公告)号：US09897181B1

公开(公告)日：2018-02-20

申请号：US15460225

申请日：2017-03-15

Applicant: HIWIN TECHNOLOGIES CORP

Inventor： Ming-Yao Lin ,  Ivan Yang

IPC: F16H25/22

CPC classification number: F16H25/2223 ,  F16H35/18

Abstract: An external circulation ball screw includes an elongate shaft having has an outer circumferential surface formed with a helical rolling groove; a nut having a through hole formed therein for receiving extension of the elongate shaft therethrough, the through hole having an inner circumferential surface formed with a rolling channel corresponding to the rolling groove, the rolling groove and the rolling channel collectively defining a loading passage, the nut having an outer surface, which includes, formed therein, two through apertures that are spaced from each other and in communication with the through hole and a cavity in communication with the two through apertures; rolling elements arranged in the loading passage and having a diameter between 0.3-1 mm; and a circulator having a U-shape and is arranged in the cavity and the through apertures and formed with a return passage connected to the loading passage to collectively define a circulation channel.

公开(公告)号：US09188210B2

公开(公告)日：2015-11-17

申请号：US13669871

申请日：2012-11-06

Applicant: HIWIN TECHNOLOGIES CORP.

Inventor： Ming-Yao Lin ,  Po-Chuan Hau ,  Yan-Yu Chen

IPC: F16H25/22

CPC classification number: F16H25/2214 ,  Y10T74/19753

Abstract: The invention provides an external circulation type ball screw device comprising screw shaft and nut having first and second screw grooves. A circulation member comprises first leg, second leg and connection portion. The first leg comprises a first end surface having first inner and outer points, and the second leg comprises a second end surface having second inner and outer points; first and second entrances formed on the first and second end surfaces of circulation passage; first and second thickness respectively provided between the first entrance and the first inner and outer points thereof; the second thickness being greater than the first; the third and fourth thickness respectively provided between the second entrance and the second inner and outer points thereof; the fourth thickness being greater than the third. The groove wall of the second screw groove occupied and the occurrence of broken teeth of the nut are reduced.

Abstract translation: 本发明提供一种外循环型滚珠丝杠装置，其包括具有第一和第二螺纹槽的螺杆轴和螺母。 循环构件包括第一腿，第二腿和连接部。 第一腿包括具有第一内部和外部点的第一端面，并且第二腿包括具有第二内部和外部点的第二端面; 形成在循环通道的第一和第二端面上的第一入口和第二入口; 第一和第二厚度分别设置在第一入口与其第一内外点之间; 第二厚度大于第一厚度; 第三和第四厚度分别设置在第二入口与第二内部和外部点之间; 第四厚度大于第三厚度。 占用第二螺纹槽的槽壁和螺母的齿的发生减少。

公开(公告)号：US09970519B2

公开(公告)日：2018-05-15

申请号：US14932686

申请日：2015-11-04

Applicant: HIWIN TECHNOLOGIES CORP.

Inventor： Ming-Yao Lin ,  Yu-Hua Chen ,  Hui-Chen Chen ,  Tsung-Hsien Tsai

IPC: F16H25/22

CPC classification number: F16H25/2223 ,  F16H25/2219

Abstract: A circulation member positioning structure for a ball screw includes a nut and a circulation member. The nut has a threaded channel, a socket, and a positioning notch. The socket is provided on a wall of the threaded channel and the positioning notch is provided on a wall of socket. The circulation member has a circulation portion, a circulation track, and a positioning protrusion. The circulation portion is provided in the socket of the nut. The circulation track is distributed over one lateral of the circulation portion and connects with the threaded channel of the nut. The positioning protrusion is provided on an opposite lateral of the circulation portion for being engaged with the positioning notch of the nut. Thereby, the circulation member positioning structure helps to simplify the assembling work of the circulation member and to remain the nut small despite the insertion of the circulation member.

公开(公告)号：US09091336B2

公开(公告)日：2015-07-28

申请号：US13944219

申请日：2013-07-17

Applicant: HIWIN TECHNOLOGIES CORP.

Inventor： Ming-Yao Lin ,  Ming-Che Kuo

IPC: F16H1/24 ,  F16H55/02 ,  F16H25/22

CPC classification number: F16H25/2214 ,  F16H25/22 ,  Y10T74/19767

Abstract: A circulating element for ball screw includes a first surface defining a circulating passage that extends from one lateral side of the first surface to the other lateral side of the first surface and has a coupling mouth located on each of the two opposite ends thereof, and a second surface defining a coupling groove between the two coupling mouths of the circulating passage and two guide blocks respectively protruding out of the coupling mouths of the circulating passage. Thus, the circulating element has the advantages of low processing cost, ease of installation, high alignment accuracy, and excellent running smoothness.

Abstract translation: 用于滚珠丝杠的循环元件包括限定循环通道的第一表面，该循环通道从第一表面的一个侧面延伸到第一表面的另一侧面，并且在其两个相对端中的每一个上具有联接口，并且 第二表面限定了循环通道的两个联接口之间的联接槽和分别从循环通道的联接口伸出的两个引导块。 因此，循环元件具有加工成本低，安装方便性好，对准精度高，运行平稳性优良的优点。