Serpentine inspection robot mechanism for lifting cage guide driven by magnetic wheels

    公开(公告)号:US11312007B2

    公开(公告)日:2022-04-26

    申请号:US16095717

    申请日:2017-06-23

    IPC分类号: B25J9/06 B25J5/00 B25J9/10

    摘要: The invention relates to a serpentine inspection robot mechanism for lifting cage guide driven by magnetic wheels, comprising a magnetic wheel drive part and a pitching yawing part, wherein the magnetic wheel drive part comprises a worm and gear transmission mechanism (I) and a magnetic wheel driving mechanism (II), and the pitching yawing part comprises a pitching yawing mechanism (III). Magnetic wheels are driven by the worm and gear transmission mechanism (I) and the magnetic wheel driving mechanism (II), while the pitching and yawing control of the robot are realized by the pitching yawing mechanism (III). The serpentine robot driven by the magnetic wheels (22) resolves the problems that the efficiency of ordinary serpentine robot is low, and it is difficult for the simple-wheel-type robot to span the large gap and to reach some concealed corners, with the cage guide of the lifting machine sucked by the magnetic wheels (22).

    Online monitoring system for crack on hoist spindle and operation method thereof

    公开(公告)号:US10989695B2

    公开(公告)日:2021-04-27

    申请号:US16760040

    申请日:2019-07-01

    摘要: Disclosed are an online monitoring system for a crack on a hoist spindle and an operation method thereof. The system comprises: a rope power part, a crack detection part, a wireless transmission part, and a computer. The rope power part comprises two traction ropes, two guide wheels, two stepper motors, and two stepper motor drivers. The crack detection part comprises a spiral tube guide rail, a sliding body, and an ultrasonic generator. The wireless transmission part comprises three zigbee wireless sensing modules. The zigbee wireless sensing modules receive instructions from the computer and transmit the instructions to the stepper motor drivers to control the motors to rotate. The stepper motors drive the guide wheels to rotate to realize the winding of the ropes, so as to pull the sliding body to slide on the spiral tube guide rail. The ultrasonic generator clamped on the sliding body monitors the rotating spindle along the spiral tube guide rail. The zigbee wireless sensing modules transmit the detected data to the computer in real time. The present invention can effectively monitor a hoist spindle in time before a failure occurs, thereby avoiding safety accidents.

    Method of estimating tension of chain of scraper conveyor

    公开(公告)号:US10422709B2

    公开(公告)日:2019-09-24

    申请号:US15548126

    申请日:2016-12-02

    IPC分类号: G01L5/10 G01L5/04

    摘要: Disclosed is a method for estimating tension of a chain of a scraper conveyor, belonging to a method for estimating chain tension. The method comprises the following steps: embedding strain sensors in a plurality of scrapers of a scraper conveyor to measure the tension of weak coupling points between the scrapers and chains, converting acquired sensor signals into data signals through an A/D conversion unit, transmitting the data signals to a data control center using a wireless transmission module, further processing the tension data information of the weak coupling points through the data control center, establishing a chain tension distribution model, and determining an the estimated tension of the chain of the scraper conveyor. The method provided by the present invention is simple, efficient and practical, and the estimation of tension of the whole continuous moving chain is completed by the tension measurement at limited positions of the chain. The chain of the scraper conveyor is meshed with a sprocket and continuously moves in a middle trough and its tension also changes in real time along with the load; the strain sensors are arranged on the scrapers to measure the tension of the weak coupling points between the scrapers and the chains, and the estimation of tension of the whole chain is completed by tension measurement at limited positions on the chain.

    Chain fault diagnosis system and method for scraper conveyor

    公开(公告)号:US10065804B1

    公开(公告)日:2018-09-04

    申请号:US15571045

    申请日:2016-12-07

    摘要: A chain fault diagnosis system and a chain fault diagnosis method for a scraper conveyor are provided. The diagnosis system includes a strain rosette attached on a top end surface of each sprocket tooth of the scraper conveyor. The strain rosette is connected to a signal gathering unit fixed on a scraper conveyor roller through a shielded conductor, the signal gathering unit sends a gathered signal to a wireless receiving device by means of wireless transmission, and the wireless receiving device transmits the gathered signal obtained thereby to an industrial control computer through a USB interface. The diagnosis method includes the following three steps: chain dislocation/skip fault judgment, chain breakage fault judgment and chain seizure fault judgment. A comprehensive monitoring of the chain state of the scraper conveyor is performed by measuring strain magnitudes in different directions of the sprocket tooth in real-time, transmitting the gathered signal to the industrial control computer via a wireless transmission method and dynamically diagnosing the faults of seizure, dislocation, skip and breakage of the scraper conveyor chain based on the obtained strain data.

    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.

    Mining elevator carrying platform and carrying method

    公开(公告)号:US09840399B2

    公开(公告)日:2017-12-12

    申请号:US14383751

    申请日:2013-03-25

    IPC分类号: B66B17/18

    CPC分类号: B66B17/18

    摘要: A mining elevator carrying platform and carrying method, the platform comprises a power system (1) and a four-rod carrying device (5), a rotating rod (3) connected with the power system (1) is set on the carrying device (5); the power system (1) comprises a flameproof motor (1-1), a upper-limited switch (1-2), a down-limited switch (1-5) and a main pulley (1-6), the flameproof motor (1-1) is connected with the main pulley (1-6) through a main steel cable (1-4), a baffle (1-3) is set on the main steel cable (1-4), a double cable channel is set on the main pulley (1-6), and the main pulley (1-6) is connected with a sub-pulley (1-8) by a sub-steel cable (1-7), a sliding plate (1-9) is set on the sub-steel cable (1-7), and a sliding rod (1-10) is set on the sliding plate (1-9). The main pulley (1-6) is driven to rotate by the flameproof motor (1-1) through the main steel cable (1-4), thus the sub-pulley (1-8) is driven to rotate. The sliding rod (1-10) moves in a strip-opening sliding slot in the rotating rod (3) by the sliding plate (1-9) moving up and down, then the rotating rod (3) and a carrying plate (5-1) are driven to move circumferentially. A rocker (5-3) is rotated around a supporting bracket (5-4) driven by a connecting rod (5-2), thus a credible carrying platform in multi-plane is realized. The platform is simple in structure, controlled accurately, convenient to be fixed and maintained, operated stably and reliably, and has the self-locking function.