Overload impact-resistant planetary reducer, robot joint, and quadruped robot

    公开(公告)号:US12228201B2

    公开(公告)日:2025-02-18

    申请号:US18269430

    申请日:2021-11-30

    Abstract: The present application discloses an overload impact-resistant planetary reducer, including a tooth face portion made of a rigid material and a buffer portion capable of being elastically deformed. The buffer portion is made of a material having certain rigidity and capable of being elastically deformed under an impact force, and is coaxially nested with the tooth face portion to form a reducer component capable of preventing overload impact. The planetary reducer is capable of being elastically deformed under the impact force, effectively absorbing energy during overload impact, thus protecting transmission parts such as gears. The structure is simple and practical. The present application further discloses an overload impact-resistant planetary reducer, a robot joint and a quadruped robot.

    FOOT FORCE ACQUISITION APPARATUS AND QUADRUPED ROBOT USING THE SAME

    公开(公告)号:US20250033221A1

    公开(公告)日:2025-01-30

    申请号:US18917403

    申请日:2024-10-16

    Inventor: Xingxing WANG

    Abstract: A foot force acquisition apparatus includes a first connecting rod, a pressure signal acquisition board, a second connecting rod rotatably connected with the first connecting rod, and an air tube provided in the first connecting rod and the second connecting rod. An end portion of the second connecting rod is fixedly provided with an elastic foot pad. An air chamber is provided in the elastic foot pad. One end of the air tube is connected with the air chamber. The other end is connected with the pressure signal acquisition board. By providing the pressure signal acquisition board and providing the air chamber in the foot, the air tube spans a joint formed by the first connecting rod and the second connecting rod to acquire the internal pressure value of the air chamber, thus achieving the advantages of simple structure, low cost and high reliability.

    ROBOT JOINT HAVING DYNAMIC SEALING STRUCTURE AND QUADRUPED ROBOT APPLYING THE SAME

    公开(公告)号:US20240042627A1

    公开(公告)日:2024-02-08

    申请号:US18269444

    申请日:2021-11-30

    CPC classification number: B25J17/00 B25J19/0075 F16J15/3284

    Abstract: A robot joint having a dynamic sealing structure includes a power unit housing and an output shaft rotatable relative to the power unit housing. A soft and hard combined composite sealing ring is provided between the power unit housing and the output shaft. A soft first sealing ring is tightly connected with a joint to effectively seal the rotating joint. A hard second sealing ring slides relative to the joint while sealing the joint, thus reducing the obstruction to the movement of the joint. A quadruped robot applies the robot joint having the dynamic sealing structure. The two sealing rings with different hardness butt against each other to form a dynamic sealing structure used for sealing the joint and capable of maintaining the normal movement of the joint, effectively preventing rainwater, dust and the like from entering the joint, thus protecting the joint of the robot.

    QUADRUPED ROBOT BODY HAVING FLEXIBLE BUFFER STRUCTURE AND QUADRUPED ROBOT

    公开(公告)号:US20230303192A1

    公开(公告)日:2023-09-28

    申请号:US18248785

    申请日:2021-11-30

    Inventor: Xingxing WANG

    Abstract: A quadruped robot body having a flexible buffer structure includes a housing having an accommodating cavity, a buffer connection portion capable of connecting to a fixed end of a joint unit being provided at at least one position on the housing. The buffer connection portion is provided with a connection hole for fixedly connecting to the joint unit. One or more strip-shaped holes are provided in a region where the buffer connection portion connects to the housing. Further disclosed is a quadruped robot. The strip-shaped hole is provided on the buffer connection portion, and under the action of an external force, the strip-shaped hole can deform slightly to generate a slight displacement between the hole wall and a surrounding region, thus achieving buffering of the external force. The present invention features a simple structure, low manufacturing costs, no need to reserve an additional mounting space, and a compact structure.

    QUADRUPED ROBOT HAVING ULTRA-WIDE VIEWING ANGLE

    公开(公告)号:US20230288680A1

    公开(公告)日:2023-09-14

    申请号:US18019008

    申请日:2021-10-25

    Inventor: Xingxing WANG

    CPC classification number: G02B13/06 H04N23/55 B62D57/032

    Abstract: Disclosed is a quadruped robot having an ultra-wide viewing angle. The quadruped robot is equipped with a wide-angle lens or a fisheye lens (2) having a viewing angle that covers a blind area (100) under the robot abdomen, and thus is capable of sensing the terrain under the robot abdomen and obstacles around the robot, achieving ultra-wide vision, and effectively reducing visual blind areas of the quadruped robot. Therefore, the solution can help the robot to select footholds for feet to prevent the feet from slipping or stepping into pits or holes, or can be used for preventing the feet from hitting obstacles while swinging or for preventing the robot from hitting obstacles around the robot during movement. Thus, the solution prevents loss of control and damage of the quadruped robot, improves the motion sensing capability, and effectively satisfies the requirements for autonomous movement and obstacle avoidance of quadruped robots.

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