公开(公告)号：US20240328489A1

公开(公告)日：2024-10-03

申请号：US18451823

申请日：2023-08-17

Applicant: LIM-TEC (LANGFANG) TRANSMISSION EQUIPMENT CO., LTD.

Inventor： Ji GUO ,  Ziming MENG

IPC: F16H25/24 ,  F16H25/20 ,  H02K7/06 ,  H02K7/116

CPC classification number: F16H25/24 ,  F16H25/2015 ,  H02K7/06 ,  H02K7/116 ,  F16H2025/2031 ,  F16H2025/2046 ,  F16H2025/2081 ,  F16H2025/2087

Abstract: Embodiments of the present disclosure provide an electric cylinder with a buffering device. The electric cylinder includes a cylinder barrel, a linear motion component and a buffering device. The linear motion component is axially movable in the cylinder barrel. A load end of the linear motion component is connected to a load, and a power end of the linear motion component is connected to a power source. The buffering device is provided close to at least one of the load end of the linear motion component or the power end of the linear motion component, so as to provide buffering for the at least one of the load end or the power end.

公开(公告)号：US20240301929A1

公开(公告)日：2024-09-12

申请号：US18591321

申请日：2024-02-29

Applicant: ZF Active Safety GmbH

Inventor： Marco Becker ,  Michael Weins ,  Jonathan Bockmuehl ,  Christophe Jean Daniel Beyer

IPC: F16D65/14 ,  F16D125/40 ,  F16H25/22 ,  F16H25/24

CPC classification number: F16D65/14 ,  F16H25/2214 ,  F16H25/24 ,  F16D2125/40 ,  F16D2250/0046 ,  F16H2025/249

Abstract: A ball screw drive for an actuator assembly of a vehicle brake is disclosed, comprising a rotatably mounted ball screw shaft on which a ball nut, which is open axially on one side, is mounted, wherein at least one thread is formed on a circumferential face of the ball screw shaft and a corresponding thread is formed on an inner face of the ball nut, wherein a large number of balls is guided in the threads in such a way that rotation of the ball screw shaft causes axial displacement of the ball nut along an axis of rotation of the ball screw shaft. The ball nut has a corrosion protection coating on an exterior thereof, at least on an end face thereof and in a region of a circumferential wall adjacent to the end face. A method for producing a ball screw drive is disclosed.

公开(公告)号：US12053940B2

公开(公告)日：2024-08-06

申请号：US17004699

申请日：2020-08-27

Applicant: Crompton Technology Group Limited

Inventor： Navaneethakrishnan Pandian ,  James William Bernard ,  Jon Pethick ,  Michael Somerfield ,  Lee Slater

IPC: F16H25/24 ,  B29C70/34 ,  B29C70/48 ,  B29K63/00 ,  B29K271/00 ,  B29K307/04 ,  B29L31/00

CPC classification number: B29C70/48 ,  B29C70/347 ,  F16H25/24 ,  B29K2063/00 ,  B29K2271/00 ,  B29K2307/04 ,  B29L2031/748 ,  F16H2025/249

Abstract: An actuator includes: a cylinder, formed of carbon fiber reinforced polymer (CFRP), that extends along an actuator axis between a cylinder first end and a cylinder second end, and defines a cylinder inner diameter surface; a screw shaft that extends along the actuator axis between a screw shaft first end and a screw shaft second end, that is at least partially within the cylinder, and that is operationally connected, intermediate of the screw shaft first and second ends, to the cylinder second end; a screw shaft head affixed to the screw shaft first end, that in operation rotates relative to the cylinder, and that defines a screw shaft head outer diameter surface that faces the cylinder inner diameter surface with a slip fit therebetween; and a bearing ring affixed to the screw shaft head outer diameter surface, that is formed of polyether ether ketone (PEEK).

公开(公告)号：US11821498B2

公开(公告)日：2023-11-21

申请号：US17533646

申请日：2021-11-23

Applicant: Hamilton Sundstrand Corporation

Inventor： Navaneethakrishnan Pandian ,  Subrahmanyam Veerarapu

IPC: F16H25/24 ,  B64C13/00

CPC classification number: F16H25/24 ,  B64C13/00 ,  F16H2025/249

Abstract: Leadscrew and nut actuators are described. The leadscrew and nut actuators include a leadscrew having an external thread and formed from a first material, a nut configured to receive the leadscrew, the nut having an internal thread and formed from a second material, and an insert arranged between the internal thread of the nut and the external thread of the leadscrew, the insert configured to transfer force between the external thread and the internal thread and prevent material contact between the leadscrew and the nut. The insert is formed of a third material different from the first material and the second material.

公开(公告)号：US20230175575A1

公开(公告)日：2023-06-08

申请号：US18074240

申请日：2022-12-02

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUXENERGIES ALTERNATIVES

Inventor： Philippe GARREC ,  Alexandre Verney

IPC: F16H19/06 ,  F16H25/24 ,  F16H25/20

CPC classification number: F16H19/0622 ,  F16H25/24 ,  F16H25/2015 ,  F16H2019/0686

Abstract: A cable actuator (100) comprising:



a frame (10);
a screw (2) rotatably mounted on the frame (10) and extending along a first axis (Ox);
a nut (4) cooperating with the screw (2);
means (30) for estimating the angular movement of the nut (4) about the first axis (Lx) relative to the frame (10); and
a distance sensor (30) secured to the frame (10) and having a winder (33) for winding a thread (32), one end (32.1) of the thread (32) connected to the nut (4) at a connection point (4.1);




wherein the distance sensor (30) is arranged in such a manner that the thread (32) changes curvature at a first point (34) situated in a first plane (P1) orthogonal to the first axis (Ox).

公开(公告)号：US11668378B1

公开(公告)日：2023-06-06

申请号：US17527848

申请日：2021-11-16

Applicant: HIWIN TECHNOLOGIES CORP.

Inventor： Szu-Wei Yu ,  Chih-Hsiang Chen ,  Meng-Ying Lin

IPC: F16H25/22 ,  F16H25/24 ,  F16H57/01

CPC classification number: F16H25/2214 ,  F16H25/24 ,  F16H57/01

Abstract: A linear transmission device includes a screw, a moving member, a return element, and a sensor. The moving member is set in the screw to form a load path therebetween. The return element is set in the moving member and has a return path connected to the load path. The return path and the load path constitute a circulating path for balls to run. The moving member has an internal thread with an ineffective thread section. The moving member has a receiving groove adjacent to the ineffective thread section. The sensor is embedded in the receiving groove of the moving member without affecting the operation of the balls. Thus, the linear transmission device of the present invention can solve the problem of the sensor protruding from the moving member, so that the configuration of the surrounding space and the stroke of the moving member will not be affected.

公开(公告)号：US20190077613A1

公开(公告)日：2019-03-14

申请号：US16085115

申请日：2016-03-25

Applicant: Azbil Corporation

Inventor： Hisashi BEPPU ,  Yoichi OKAWA

IPC: B65G54/02 ,  B65G25/04 ,  F16H25/24

CPC classification number: B65G54/02 ,  B65G25/04 ,  F16H25/24 ,  F16H49/00 ,  F26B5/06

Abstract: A transfer apparatus comprises a first rod-shaped member comprising a magnetic material; a first terminal member configured to allow insertion of a first end portion of the first rod-shaped member; a second terminal member configured to allow insertion of a second end portion of the first rod-shaped member; a second rod-shaped member comprising a magnetic material; a third terminal member configured to allow insertion of a first end portion of the second rod-shaped member; a fourth terminal member configured to allow insertion of a second end portion of the second rod-shaped member; a coupling member coupling the second terminal member and the third terminal member; and an opposite member facing a part of side surfaces of the first and second rod-shaped members, wherein the first rod-shaped member and the first terminal member are not fixed, the first rod-shaped member and the second terminal member are fixed to each other.

公开(公告)号：US20180202526A1

公开(公告)日：2018-07-19

申请号：US15441231

申请日：2017-02-23

Applicant: TIMOTION TECHNOLOGY CO., LTD.

Inventor： Chun-Tu WANG

IPC: F16H25/24

CPC classification number: F16H25/24 ,  F16H1/203 ,  F16H25/186 ,  F16H2025/2081 ,  F16H2025/209

Abstract: A reciprocating linear pushrod includes a base, a transmission mechanism and a moving mechanism. The transmission mechanism includes a motor and a rotary shaft, and the rotary shaft has a threaded portion including a left-handed thread groove and a right-handed thread groove crossed with each other, and both ends of the left-handed thread groove are communicated to both ends of the right-handed thread groove respectively. The moving mechanism includes a moving rod and a crescent member, and the moving rod has an axial hole and a radial hole and is sheathed on the rotary shaft by the axial hole, and the crescent member is accommodated in the radial hole and embedded into the threaded portion, so that the moving mechanism can be moved reciprocally according to the rotation of the rotary shaft, and this disclosure has the effects of reducing the total volume and simplifying the structure significantly.

公开(公告)号：US20180172139A1

公开(公告)日：2018-06-21

申请号：US15736014

申请日：2016-06-17

Applicant: NSK Ltd.

Inventor： Shinpei YAMAMOTO ,  Seiji SUZUKI

IPC: F16H57/04 ,  F16H25/22 ,  F16H25/24

CPC classification number: F16H57/0497 ,  F16H25/22 ,  F16H25/2204 ,  F16H25/24 ,  F16H57/0412 ,  F16H57/043 ,  F16H57/045 ,  F16J15/447

Abstract: An object is to reduce the load on a driving device for turning a screw shaft (2) in a cooling liquid discharge apparatus (10) for use in a ball screw apparatus (100) used in a machine tool or the like to make the apparatus compact and to prevent an increase in the manufacturing cost. The cooling liquid discharge apparatus (10) according to the invention has a housing (14) that is provided with proximity portions (5d, 6f) that extend radially inwardly to be close to the screw shaft 2 and reservoirs (11, 12, 13) that temporally store cooling liquid (8), which are arranged alternately along the axial direction, and discharge ports (5e, 6e, 6g) through which cooling liquid (8) is discharged from the reservoirs (11, 12, 13).

公开(公告)号：US09976638B2

公开(公告)日：2018-05-22

申请号：US14428785

申请日：2013-09-09

Applicant: Continental Teves AG & C o. oHG

Inventor： Theo Baukholt ,  Johannes Görlach ,  Pierre Schmidt ,  Kristijan Tarandek

IPC: F16H25/24 ,  F16D65/14 ,  F16D1/072 ,  F16D1/027 ,  F16D23/12 ,  F16D125/40 ,  F16F15/32 ,  F16H25/22

CPC classification number: F16H25/24 ,  F16D1/027 ,  F16D1/072 ,  F16D65/14 ,  F16D2023/123 ,  F16D2125/40 ,  F16F15/324 ,  F16H25/2204 ,  Y10T29/49936 ,  Y10T74/18576

Abstract: It is the intention for a linear unit (7) for imparting an axially acting force, having a rotational-translational gear (8), in particular a ball screw, which has a threaded spindle (1) and a threaded nut (2), and having a force transmission element (3), which is in particular in the form of a thrust rod or thrust tube, to be improved such that fewer components are required and the assembly of the linear unit is kept as simple as possible. For this purpose, the threaded nut (2) and the force transmission element (3) are connected to one another by means of a positively locking, in particular play-free connection, in particular by means of clinching.