Traveling vehicle
    1.
    发明授权

    公开(公告)号:US11964639B2

    公开(公告)日:2024-04-23

    申请号:US17261989

    申请日:2020-06-24

    摘要: A traveling vehicle includes a mechanical brake link mechanism to transmit operation of a brake pedal to a brake device housed in a case and to control brakes of right and left rear wheels. The brake link mechanism includes a pair of brake rods extending in a front-back direction at sides of the case. A guard assembly includes a pair of guards extending in the front-back direction below the pair of brake rods. The pair of brake rods overlaps the pair of guards in a vertical direction. In a side view of the traveling vehicle, the pair of brake rods includes a higher portion positioned above a lower surface of the case to be distanced by a predetermined interval or more and positioned above the lower surface of the case, and a lower portion positioned below the higher portion. The pair of guards overlaps at least all of the lower portions in the vertical direction.

    BRAKE DEVICE, INDUSTRIAL ROBOT AND METHOD
    3.
    发明公开

    公开(公告)号:US20240003392A1

    公开(公告)日:2024-01-04

    申请号:US18254944

    申请日:2020-12-07

    申请人: ABB Schweiz AG

    发明人: Axel Johansson

    摘要: A brake device including a first device; a brake element having a first frictional brake surface and an engageable structure; a second device movable relative to the first device; a second frictional brake surface; a force device arranged to press the first frictional brake surface and the second frictional brake surface against each other with a pressing force; and an actuator connected to the first device, the actuator including an engaging structure movable between a disengaged position not engaging the engageable structure, and an engaged position engaging the engageable structure to brake relative motion between the first device and the second device; wherein a dynamic friction coefficient between the first frictional brake surface and the second frictional brake surface is less than 0.3, such as less than 0.15, or less than 0.1; and wherein the pressing force is dimensioned with respect to the dynamic friction coefficient.

    Hand Brake System Used on Non-beam Pumping Unit

    公开(公告)号:US20180163798A1

    公开(公告)日:2018-06-14

    申请号:US15657230

    申请日:2017-07-24

    申请人: Zhishen Su

    发明人: Zhishen Su

    IPC分类号: F16D63/00 F16D65/28

    摘要: The utility model provides a hand brake system used on a non-beam pumping unit, including a drive mechanism mounted at the lower part of the pumping unit and an actuator mounted on a side of the main drive sprocket of the pumping unit, and the drive mechanism and the actuator are connected by a wire rope. In the utility model, the drive mechanism and actuator of the brake system are separately arranged, thus ensuring promptness of braking and eliminating the potential safety hazard of workers falling from a height. The braking mode of the existing brake system on a pumping unit is to achieve the braking function by locking the rotary shaft from the outer side. The braking force upon braking is relatively small and the braking reliability is relatively poor.