5results about How to "Avoid tangled rope" patented technology

The utility model provides a linkage protective cover plate device for a lifting platform, which comprises a cover plate frame, a protective cover plate capable of being turned over to be opened, at least one pull rope used for driving the protective cover plate to be opened and a driving frame, and the protective cover plate is rotatably arranged on the cover plate frame; a steering wheel frame is fixed to the lower side of the cover plate frame, and a steering wheel set is rotatably installed on the steering wheel frame. One end of the pull rope is connected to the end of the protective cover plate, the other end of the pull rope bypasses the steering wheel set and then is in driving connection with the driving frame, and the driving frame can drive the protective cover plate to be opened or closed through the pull rope; the driving frame is fixed to an external lifting table and can ascend and descend along with the lifting table. According to the linkage protective cover plate device for the lifting platform, the protective cover plate is linked with the lifting platform, so that the protective cover plate can be automatically opened and closed along with the lifting platform, and the linkage protective cover plate device is convenient to use and high in safety.

The invention belongs to the technical field of electric hoists, and particularly relates to a European-style steel wire rope electric hoist which comprises a sliding rail, a sliding table is slidably connected to the outer wall of the sliding rail, an outer cover is fixedly connected to the bottom of the sliding table, and a base is fixedly connected to the bottom of the outer cover. According to the European-style steel wire rope electric hoist provided by the invention, when an object (such as a plate-shaped piece) is hoisted, the object needs to be kept stable when the first pull rope is in a straightened state, at the moment, different positions of the object are hooked and pulled through a plurality of hooks at the same time, and if one second pull rope is in a straightened state and the object is in an inclined state, the other second pull rope is not in a straightened state; if the object is in the loose state, the other second pull rope in the loose state is pulled upwards, the second pull rope penetrates out of the inserting groove, the first pull rope is wound, the object is driven to move upwards, at the moment, under the gravity effect of the object, the limiting bead abuts against the straight face of the other side of the clamping block, and the second pull rope is prevented from sliding in the inserting groove through limiting of the clamping block; therefore, the object is kept to be lifted upwards in a flat state.

The utility model relates to the field of ocean underwater operation equipment especially relates to a kind of ocean winch applicable to different thick and thin cable cable arrangement, it mainly includes two parts of winch main body and cable arrangement device, winch main body includes winch drum, is driven by drum motor, and cable is wound on winch drum;Cable arrangement device includes stepping mechanism, guide mechanism and cable pressing mechanism;Stepping mechanism includes guide rod, cable arrangement lead screw and cable arrangement motor, guide mechanism includes guide support and guide pulley, guide support is screwed on cable arrangement lead screw and is slid and is arranged on guide rod, guide pulley is installed on guide support, and cable is reeled through guide pulley;Cable pressing mechanism includes the cable pressing wheel of up and down displacement setting, and cable pressing wheel is arranged above guide pulley, and the spacing of guide pulley is adjustable.The utility model can guarantee the stability of winch cable arrangement and the adaptability to different thick and thin cable diameter.

The application discloses a safety type rotary arm auxiliary hoist structure for a tower crane, which is arranged between a lifting mechanism and an amplitude changing mechanism, and comprises a stand column, the stand column is rotatably arranged on a balance arm, an auxiliary basic arm is arranged on the top of the stand column, an extension arm is movably arranged on the auxiliary basic arm along the extension direction of the auxiliary basic arm, an auxiliary winch is further arranged on the top of the stand column, a steel wire rope of the auxiliary winch is sequentially connected to an auxiliary hoist hook through a rope arranging pulley, a deflecting pulley and a fixed pulley, the rope arranging pulley is arranged on the auxiliary basic arm, the deflecting pulley is arranged on the stand column, and the fixed pulley is arranged on the extension arm. The rotary arm auxiliary hoist is arranged near the lifting mechanism and the amplitude changing mechanism on the balance arm, so that the customer can conveniently maintain and repair the rotary arm auxiliary hoist.

The invention discloses an anti-disordered rope monitoring system for a crawler crane double-coil penetrating and winding lifting hook, the anti-disordered rope monitoring system for the crawler crane double-coil penetrating and winding lifting hook comprises a fixed shell, the fixed shell is arranged on a hook head movable pulley, and a monitoring equipment box is arranged in the fixed shell; a power source, a first signal transmitting module and a first relay are arranged in the monitoring equipment box, the first signal transmitting module and the first relay are connected to the power source in series, the power source is further connected with a position sensor in parallel, the position sensor is arranged at the hook head movable pulley, and the position sensor is further connected with the first relay. The system further comprises a first signal receiving module and a first alarm module. The invention further discloses a rope disorder prevention monitoring method for the crawler crane double-coil penetrating and winding lifting hook. According to the rope disorder prevention monitoring system and method for the crawler crane double-coil penetrating and winding lifting hook, through real-time monitoring and timely alarming, the rope disorder phenomenon caused by loosening of the steel wire rope is effectively avoided, the automation degree is high, and the construction risk is reduced.