公开(公告)号：US20210370522A1

公开(公告)日：2021-12-02

申请号：US17216716

申请日：2021-03-30

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Kunlei Zhao ,  Zheng Xie ,  Zhaohui An ,  Weizhi Shi ,  Youjun Xiong

IPC: B25J15/00 ,  B25J15/02

Abstract: A thumb structure includes a proximal phalanx, a distal phalanx rotatably connected to one end of the proximal phalanx, a fixing member connected to the proximal phalanx through a first ball joint, a linking member having opposite ends that are connected to the distal phalanx and the fixing member through a second ball joint and a third ball joint, a first actuating assembly to drive the proximal phalanx to swing in a direction of a first degree of freedom, and a second actuating assembly to drive the proximal phalanx to swing in a direction of a second degree of freedom.

公开(公告)号：US20200017145A1

公开(公告)日：2020-01-16

申请号：US16233142

申请日：2018-12-27

Applicant: UBTECH Robotics Corp

Inventor： Youjun Xiong ,  Kunlei Zhao ,  Wenhua Yu ,  Libing Zhou ,  Qi Zhao

IPC: B62D21/10 ,  B62D25/20

Abstract: The present disclosure provides a chassis comprising a frame, two hanging units symmetrically provided at both sides of the frame, and a front guiding wheel and a rear universal wheel provided below the frame, wherein each of the hanging units comprises a mounting rack fixedly connected to the frame, a hanging rack slidably connected to the mounting rack, and a driving wheel rotatably connected to the hanging rack, and the front guiding wheel is provided with a first driving motor, and the driving wheel of each hanging unit is driven by a second driving motor, and wherein a closed loop speed control system is formed between the first driving motor and both second driving motors, such that a rotational angle of the front guiding wheel is adjustable via the first driving motor when revolving speeds of both second driving motors are changed.

公开(公告)号：US20190160657A1

公开(公告)日：2019-05-30

申请号：US16114220

申请日：2018-08-28

Applicant: UBTECH Robotics Corp

Inventor： Youjun XIONG ,  Kunlei Zhao

IPC: B25J9/10 ,  B25J17/00 ,  B25J9/00 ,  F16H1/12 ,  F16H55/22

Abstract: A spatial crossed-axis transmission mechanism includes a rotatable driving member, an actuating member, and a support member for fixing the driving member and the actuating member. The driving member comprises a first end surface adjacent to the support member, and an Archimedes spiral groove is defined in the first end surface of the driving member. The actuating member includes an end surf adjacent to the support member and a sliding shaft on the end surface of the actuating member. The support member defines a straight groove passing therethrough, and the sliding shaft comprises an end that extends through the straight groove and fits into the Archimedes spiral groove.