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    TEST BENCH FOR SNUBBER
    1.
    发明公开
    TEST BENCH FOR SNUBBER 审中-公开

    公开(公告)号：US20240192084A1

    公开(公告)日：2024-06-13

    申请号：US18530549

    申请日：2023-12-06

    申请人： MINETEC S.A.

    发明人： Bernardo Luis VERA TORRES ,  Claudio Devon ZAMORANO JONES

    IPC分类号： G01M13/00

    CPC分类号： G01M13/00

    摘要： A test bench to evaluate the operation of a brake or shock absorber for bucket doors of excavators or electric shovels that allows simulating real operating conditions of the bucket doors, which includes a brake support that allows installing and fixing the brake to be evaluated, said brake comprising, a body with an axis that is connected to the end of an arm in a pivotal manner and its other end is used for connection with the bucket door; a pendulum to simulate the loads received by the brake due to the opening and/or closing movement of the bucket door, comprising a pendulum arm comprising an upper end with a lateral edge comprising at least one opening to be fixedly connected to the free end of the brake arm, an inner side pivotally connected to a pendulum support, arranged in front of the brake support, allowing rotational movement of the pendulum, and an outer side comprising a plurality of openings defining a predefined inclination; and a lower end comprising a known mass; a locking device on one side of the upper end of the pendulum arm, which allows an inclination position of the pendulum arm to be fixed; a support structure, on which the rest of the elements of said test bench are installed or arranged; and a plurality of sensors that allow measurements of at least the pressure in the brake chambers, the temperature of the fluid in the brake chambers, and the angular velocity and acceleration of the pendulum and brake arm.

    ASSEMBLY FOR WEAR MONITORING AND PREVENTION OF BUSHINGS AND PINS IN PIVOT CONNECTIONS OF ELECTRIC SHOVEL BUCKETS
    2.
    发明公开
    ASSEMBLY FOR WEAR MONITORING AND PREVENTION OF BUSHINGS AND PINS IN PIVOT CONNECTIONS OF ELECTRIC SHOVEL BUCKETS 审中-公开

    公开(公告)号：US20240191477A1

    公开(公告)日：2024-06-13

    申请号：US18530554

    申请日：2023-12-06

    申请人： MINETEC S.A.

    发明人： Bernardo Luis VERA TORRES ,  Edwin Antonio FLORES MORALES ,  José Luis MORALES MERINO

    IPC分类号： E02F9/26 ,  E02F3/407

    CPC分类号： E02F9/267 ,  E02F3/4075

    摘要： A set of monitoring and prevention of wear of bushings and pins in connections in buckets of electric shovels is disclosed that has the objective of monitoring the condition of bushings to inform the moment of replacement of the component, in addition, to reduce wear by which is subjected to extend its useful life. The assembly comprises devices for locking pins in the bucket connections of electric excavator shovels, such as handles (bail) or padlocks (padlock), restricting the movement of the pins that interact with the bushings during the operation of the electric shovel bucket, preventing that rotate on their own axis so that rotational friction does not occur between said pin and the bushing, reducing wear. The set also includes wear indicators for the bushings of electric excavator shovels that use handles (bail) or padlocks (padlock), allowing the wear status of the bushings to be monitored and reported, to schedule maintenance, replace components and avoid critical failure of components that may generate unscheduled stoppages.