Industrial heavy load electric linear actuator

    公开(公告)号:US11967876B2

    公开(公告)日:2024-04-23

    申请号:US17577864

    申请日:2022-01-18

    Inventor: Yu-Chang Lin

    CPC classification number: H02K41/02 H02K7/003 H02K7/116

    Abstract: An industrial heavy load electric linear actuator includes a gearbox (10), an electric motor (20), a lead screw (30), an extension pipe (40) and a load baring structure (50). The electric motor (20) is connected to the gearbox (10). A portion of the lead screw (30) is received inside the gearbox (10) and driven by the electric motor (20), and another portion of the lead screw (30) is extended out of the gearbox (10). The extension pipe (40) is movably fastened to the lead screw (30). The load bearing structure (50) includes a sleeve (51), a bearing (52), a fastening element (53), a fixation seat (54) and a rear supporting seat (55). The sleeve (51) is mounted to the lead screw (30) and holds the bearing (52) jointly with the fastening element (53). The fixation seat (54) and the rear supporting seat (55) hold the bearing (52) at outer perimeters of the sleeve (51) and the fastening element (53).

    Actuator and transmission structure thereof

    公开(公告)号:US11629780B2

    公开(公告)日:2023-04-18

    申请号:US17492559

    申请日:2021-10-02

    Inventor: Yu-Chang Lin

    Abstract: An actuator and a transmission structure thereof. The transmission structure (3) includes a screw nut (31) and a ratchet guiding sleeve (32). The screw nut (31) includes one or a plurality of pawls (311). The ratchet guiding sleeve (32) is mounted on the screw nut (31), and the screw nut (31) is able to rotate relative to the ratchet guiding sleeve (32). The ratchet guiding sleeve (32) includes a ring ratchet (321) disposed on an inner circumference thereof and a plurality of track slots (322) disposed on an outer circumference thereof. One or a plurality of pawls (311) abut against the ring ratchet (321), thereby achieving the effect of smooth movements of the actuator (10) and the transmission structure (3).

    Linear actuator and centrifugal safety device thereof

    公开(公告)号:US11624431B2

    公开(公告)日:2023-04-11

    申请号:US17719984

    申请日:2022-04-13

    Inventor: Yu-Chang Lin

    Abstract: A linear actuator (1) and the centrifugal safety device (50) thereof is disclosed. The safety device (50) includes an outer socket (51) having a stop portion (512) and a first accommodation portion (513), an inner socket (53) having a raised portion (531) and a second accommodation portion (532) and a centrifugal assembly (55) having a centrifugal block (551) and an elastic element (555). The inner socket (53) drives the centrifugal assembly (55) to rotate. If the centrifugal force of the centrifugal block (551) is smaller than the elasticity of the elastic element (555), then the centrifugal block (551) is limited in the second accommodation portion (532) by the elastic element (555), or else the centrifugal block (551) moves into the first accommodation portion (513) and clamped by the raised portion (531) and the stop portion (512).

    Lifting table stand
    18.
    发明授权

    公开(公告)号:US11766115B2

    公开(公告)日:2023-09-26

    申请号:US18104791

    申请日:2023-02-02

    Inventor: Yu-Chang Lin

    CPC classification number: A47B9/20 A47B2200/0052 A47B2200/0057

    Abstract: A lifting table stand includes a pair of telescopic columns, a carrier, an actuation module, and a passive mechanism. Each telescopic column includes multiple tubes adapted to sheathe with each other and move telescopically relative to each other. The carrier includes a beam straddling the telescopic columns and a pair of support members perpendicularly connected to two ends of the beam. The actuation module includes a receiving member detachably installed to the beam and a driver connected to the receiving member. The passive mechanism includes a transmission shaft and a pair of gear sets installed in the tubes. The transmission shaft passes the driver and is connected to each gear set. Since the receiving member is detachably installed to beam, the actuation module may be changed to different types to control the elevation of the lifting table stand.

    ELECTRIC TABLE, LEG STAND AND LIGHTWEIGHT BEAM STRUCTURE THEREOF

    公开(公告)号:US20230210254A1

    公开(公告)日:2023-07-06

    申请号:US17685355

    申请日:2022-03-02

    CPC classification number: A47B9/20 A47B13/02 A47B2200/0051 A47B2200/0056

    Abstract: A lightweight beam structure includes a first and a second frame. The first frame includes an upper plate, two inner side plates downward bent and extended from two sides of the upper plate, two outer side plates upward bent and extended from two inner side plates respectively and two fixing plates bent and extended from two outer side plates respectively.
    Each outer side plate is formed outside each inner side plate. A groove is formed between each inner side plate and each outer side plate. The second frame is connected with the first frame and includes a top plate and two intermediate plates downward bent and extended from two sides of the top plate. Each intermediate plate is received in each groove. The top plate is formed over the upper plate. Therefore, the stability is maintained and the weight is reduced so that the material costs may be decreased.

    Fixing mechanism for lifting device

    公开(公告)号:US11499670B2

    公开(公告)日:2022-11-15

    申请号:US17139941

    申请日:2020-12-31

    Inventor: Yu-Chang Lin

    Abstract: A fixing mechanism for a lifting device is provided. The lifting device includes a motor and a transmission shaft driven by the motor. The fixing mechanism includes a support body, a fixing assembly, a bearing, and a connection assembly. The fixing assembly includes a base plate fixed above the support body and a chamber disposed between the base plate and the support body. A bearing is arranged in the chamber and clamped between the support body and the base plate, and the transmission shaft passes through the bearing and protrudes from the base plate. The connection assembly is sleeved on the transmission shaft to together connect with the motor. Accordingly, power transmission efficiency may be improved, and vibration and noise generated during operation of the motor may be reduced.

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