Hydraulic elevating platform having no guide rails and elevating method

    公开(公告)号:US10399822B2

    公开(公告)日:2019-09-03

    申请号:US15542601

    申请日:2015-12-29

    摘要: A hydraulic elevating platform having no guide rails and an elevating method. A hydraulic power pack drives three parallel hydraulic cylinders to work synchronously, thereby implementing the rising and falling of an elevating platform; when the elevating platform reaches a predetermined floor, an upper electric pushrod pushes a pedal assembly out, and then the pedal assembly drives a pedal to rise by means of a pedal elevating system until the pedal is flush with the surface of a loading table of the elevating platform; outward-swinging doors between the elevating platform and a floor open to form pedal guardrails; then sliding doors open and a man can step onto a stair via the pedal assembly. An eccentric loading adjusting means eliminates eccentric loading to achieve balance about the center of gravity, thereby eliminating the eccentric loading of the platform. The elevating platform is simple in structure, safe, reliable, and easy to maintain. The elevating platform, placed within a spiral stair, is convenient for movement of crowds and cargo delivery at certain scenarios and is widely applicable. The elevating method is simple to implement and effectively solves the eccentric loading problem caused by reasons such as outstretching of a pedal of a hydraulic elevating platform and uneven distribution of people on the elevating platform, so that the hydraulic elevating platform is more stable and reliable during operation.

    A LAP JOINT PLATFORM OF LARGE-LOAD LIFTING CONTAINER

    公开(公告)号:US20180162700A1

    公开(公告)日:2018-06-14

    申请号:US15112392

    申请日:2015-07-09

    IPC分类号: B66B17/18

    CPC分类号: B66B17/18 B66B17/16

    摘要: A lap joint platform of a large-load lifting container, comprising a machine frame (18), a rocker arm platform (14), a rear rocker arm platform (17), a locking device and lifting devices. The rocker arm platform (14) is hinged with the top of the machine frame (18) through a shaft set (15) and is provided with mine car rails (24) and a rubber-tired vehicle support face (26). The rear rocker arm platform (17) is fixed with the top of the machine frame (18) through bolts. The locking device is arranged below the rocker arm platform (14) and comprises a locking lower sliding block cover plate (7), a locking lower sliding block (9), a locking upper sliding block (10), a locking oil cylinder front support (11), a locking lower sliding block guide rail (12), a locking inclined rail (13) and a locking oil cylinder (16). The lifting device is arranged below the locking device and comprises a connecting rod lower support (1), a support pawl connecting rod (2), a support pawl push rod (3), a support pawl (5), a support pawl rear end (6), a support oil cylinder rear base (19), a support oil cylinder (20), an anti-collision rear buffer base (21), an anti-collision buffer (22) and a support guide block (23). The lap joint platform is stable in the loading and unloading process, simple to operate and large in steel wire rope compensation height.

    Slope-adaptive inclined special elevator

    公开(公告)号:US10513419B2

    公开(公告)日:2019-12-24

    申请号:US16344811

    申请日:2015-12-22

    IPC分类号: B66B9/06 B66B17/12 B66B9/08

    摘要: A slope-adaptive inclined special elevator includes a bumper, an elevator car system, a slope guide rail system, a counter-weight system, a traction machine, a governing rope governor, and a traction rope guiding wheel. The two ends of the traction rope are connected to the elevator car system and the counter-weight system respectively, and the traction rope is towed and lifted under the driving action of the traction machine and the guiding action of the traction rope guiding wheel; over-speed protection is realized by means of the governing rope governor and a safety gear linkage and the bumper; to adapt to slope variations, the car body is leveled automatically by an automatic leveling assembly, the traction rope is guided forcibly via traction rope lifting devices and traction rope pressing devices, and the governing rope is guided forcibly via governing rope lifting devices and governing rope pressing devices.

    Fall prevention brake buffering system for high-speed mine lift

    公开(公告)号:US09840396B2

    公开(公告)日:2017-12-12

    申请号:US14383836

    申请日:2013-03-25

    IPC分类号: B66B5/24 B66B7/08 B66B7/10

    CPC分类号: B66B5/24 B66B7/085 B66B7/10

    摘要: Disclosed is a fall prevention brake buffering system for high-speed mine lift, including brake ropes (2) fixed on two sides of a car (5). One end of the brake rope (2) is fixed on the top part of a vertical well (6), and the other end is fixed on the bottom part of the vertical well (6). A linkage mechanism (11) is arranged at the bottom of the car (5). A buffer (1) is arranged at the top of the brake rope (2), and a tension connector (4) is arranged at the bottom of the brake rope (2). A brake rope safety tong (3) fixed on the brake rope (2) and connected with the linkage mechanism (11) is arranged at the bottom of the car (5). The buffer (1) includes an inverted brake rope gradual safety tong (8) with a buffering rope (9) provided therein and connected with the brake rope (2). A buffering rope clip (10) is arranged on the buffering rope (9). The system is convenient to install, and the buffering force of the brake rope is constant and adjustable. The system realizes reliable fall prevention brake function, greatly improves safety performance during high-speed operation of a lift with non-rigid rails, and increases safety performance during high-speed operation of a mine lift.

    Device and method for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end

    公开(公告)号:US10913636B2

    公开(公告)日:2021-02-09

    申请号:US16077981

    申请日:2017-12-01

    IPC分类号: B66B7/10

    摘要: The present invention discloses a device and method for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end. The device includes two stages of steel wire rope tension adjusting devices provided on a hoisting container, where a primary steel wire rope tension adjusting device includes left and right steel wire rope tension adjusting devices that are symmetrically arranged, and a secondary steel wire rope tension adjusting device is provided below the primary steel wire rope tension adjusting device. By use of two stages of steel wire rope tension adjusting devices, tension on four steel wire ropes can be adjusted to equalize the tension, thus meeting the requirement for tension equalization in a hoisting process. The four steel wire ropes are equally divided into two groups. Tension of two steel wire ropes is adjusted by rotating a primary drum around which the two steel wire ropes are wound, and then tension of the four steel wire ropes is adjusted by rotating a secondary drum around which the multiple steel wire ropes are wound, thus achieving a final purpose. The device of the present invention has a simple structure, and is conveniently mounted and easily detached. The tension is automatically adjusted by rotating the drums. This solution is novel and has wide application.