75results about How to "Avoid tangled rope" patented technology

The invention discloses a disorder cable alarming method for cranes, comprising steps as follows: S10, acquiring a velocity V1 of hoisting cables at a hoisting place and a velocity thereof V2 at a pulley part on top of a crane arm where the hoisting cables pass through; S20, judging whether a ratio between V1 and V2 is in a zone of disorder cables or not while the crane is just started or stopped and a sensor is free of impacts. Either of the following factors is applied for the judgment of the zone of disorder cables: a ratio between V1 and V2 is equal or greater than two; or a ratio between V1 and V2 is equal or less than 1.5 when a lifting hook is not in a falling state. If in a zone of disorder cables, the step S10 is needed; if not, a step S30 is needed; S30, giving off alarm signals for the disorder cables of the crane. With the disorder cable alarming method for cranes, alarms can be given at the early stage the disorder cables occur, so as to avoid the disorder of hoisting cables in the middle and the late stages, and effectively eliminate the dangers caused by disorder of the hoisting cables. Based on the disorder cable alarming method for cranes, the invention also discloses a disorder cable alarming device for cranes, and a crane with the disorder cable alarming device.

The invention relates to a double-layer winding steel wire rope groove reel. The double-layer winding steel wire rope groove reel is provided with a reel body with a left flange and a right flange, wherein a rope groove is formed on the circumferential surface of the reel body; a steel wire rope fixing groove is formed at the starting end of the rope groove on the circumferential surface of the reel body; the rope groove is a spiral line rope groove; a climbing boss is arranged on the reel circle, at the tail end of the rope groove, of the reel body; the height of the climbing boss is gradually increased on the circumferential surface of the reel body along the circumferential extension angle; a guide baffle ring is arranged on the inner side, corresponding to the climbing boss, of the right flange; and the thickness of the guide baffle ring is gradually increased in the circumferential direction along with the extension angle. In the process of the steel wire rope climbing among layers, the guide baffle ring can guide the steel wire rope to change the winding direction, so that rope skipping and rope disordering are avoided and the rope can be tidily and tightly arranged on the second layer of the reel; the climbing boss has the effects of supporting and positioning, so that the contact stress between the steel wire ropes in the climbing process is effectively reduced and abrasion is reduced; the reel has a simple structure; the rope groove is easy to process; and precision is high and cost is low.

The invention discloses a multi-layer helix rope winding groove coiling barrel, which comprises a coiling barrel (1), a helix rope groove (2), a steel wire rope (13) ad a coiling barrel side plate (14), wherein two ends of the coiling barrel (1) are used as the installation interfaces (6); a rope through hole (7) is formed in the coiling barrel side plate (14); a rope climbing block (3) is arranged at the tail end of the helix rope groove (2); a wedge-shaped block (4) is arranged at the beginning end of the steel wire rope (13); the wrap angle alpha of the rope climbing block (3) ranges from 0 degree to 270 degrees; the height of the rope climbing block (3) is increased from 2mm to the diameter of the steel wire rope (13) gradually; the width of the rope climbing block (3) is reduced from being equal to the diameter of the steel wire rope (13) to the 1/4 of the diameter of the steel wire rope (13); the wrap angle alpha 2 of the wedge-shape block (4) ranges from 0 degree to 320 degrees; the height of the wedge-shape block (4) is equal to the diameter of the steel wire rope (13); and the width of the wedge-shape block (4) is reduced from being equal to the diameter of the steel wire rope (13) to the 1/9 of the diameter of the steel wire rope (13).

The invention discloses a reel device and a hoisting mechanism of a crane. The reel device comprises a work rope (1) and at least two reel bodies, wherein the work rope (1) is wound on the at least two reel bodies, so that the number of layers of the work rope (1) wound on each of the at least two reel bodies can be reduced. According to the reel device, the possibility of avoiding the occurrence of a rope clutterphenomenon is provided.

The invention discloses a wind power conversion mechanism. The wind power conversion mechanism comprises reciprocating wheels, a generating-electromotion dual-purpose machine, universal rope guiding mechanisms and traction cables, wherein the reciprocating wheels comprise a first reciprocating wheel and a second reciprocating wheel; the generating-electromotion dual-purpose machine is in transmission connection with the first reciprocating wheel and the second reciprocating wheel through transmission parts; the universal rope guiding mechanisms are arranged at two sides of the reciprocating wheels; and the traction cables comprise a first cable and a second cable, the first cable is wound on the first reciprocating wheel, the second cable is reversely wound on the second reciprocating wheel, and the first cable and the second cable are used for connecting with one end of an aircraft to respectively wind the universal rope guiding mechanism at the corresponding side. The mechanism is compact in structure and stale in performance, can effectively avoid cable winding and can adapt to various wind directions, so that the wind power conversion efficiency can be obviously improved. The invention further discloses a high altitude wind power generator with the wind power conversion mechanism.

The invention relates to a mechanical device in the technical field of building exterior wall cleaning, in particular to a double-rope groove multi-layer hoisting mechanism specially used in a window cleaning machine system. The invention mainly includes a reel supporting frame, a left bearing seat and a right bearing seat, a reel main body, a reduction motor, a left vertical pulley and a right vertical pulley, and a horizontal pulley block. The main transmission shaft of the reel is directly driven by the geared motor, and double rope grooves are used for winding, which avoids the problem of wire rope arranging, and through the effective installation of vertical pulleys, each wire rope in the two rope grooves is wound into the same A vertical pulley makes the steel wire rope passing through the first set of pulleys become the guide rope of the second set of pulleys, completely eliminating the need to use other third-party mechanisms to arrange the ropes, eliminating the phenomenon of rope chaos. Compared with the existing lifting mechanism, the lifting mechanism has the advantages of simple structure, flexible operation, safety and reliability.

The invention discloses a movement speed and displacement integrated testing device and method of a cable arranging device. The testing device comprises a supporting seat, a coil spring, a rope storing drum, a supporting shaft, a testing gear and a two-way hall switch, wherein the supporting shaft is mounted on a bracket, and the rope storing drum is mounted on the supporting shaft through a bearing; one end of the coil spring is fixedly connected with the bracket, and the other end of the coil spring is fixed to the rope storing drum; the testing gear which is coaxially fixedly mounted on the rope storing drum; the two-way hall switch corresponding to the testing gear is mounted on the bracket, and an axis of the two-way hall switch passes through the center of the gear; a steel wire rope end head locking device corresponding to the rope storing drum is arranged on the bracket. According to the testing device, the movement speed and displacement are measured in a way of pulling a coiling drum to test the contact mode of a steel wire rope, so that the measurement moving range is wide; a vortex type coil spring is arranged and can provide a certain tensioning force and returning force so as to ensure that the testing steel wire rope is tensioned as well as avoid disordering of the rope, and as a result, the tracking measuring accuracy is high.

The invention provides a constant-force and constant-speed electric capstan, belongs to the technical field of machinery and solves the problem that a conventional capstan is instable in operation. The constant-force and constant-speed electric capstan comprises an enclosure, a winding drum, a motor, a speed reducer, at least one traction drum and a differential, wherein the winding drum is arranged in the enclosure and used for winding a wire rope; the motor is provided with a motor shaft which penetrates the winding drum, and the winding drum can horizontally move on the motor shaft when the motor rotates; the speed reducer is arranged at the end, far away from the motor, of the winding drum and connected with the motor shaft; one of the traction drums is connected with the speed reducer through a connecting shaft and used for receiving the wire rope output by the winding drum, and the received wire rope is conveyed out of the enclosure; and the differential is arranged in the enclosure and connected with the speed reducer. The constant-force and constant-speed electric capstan has the advantage of being stable in operation.

The invention relates to a multi-function weight safety device, which is mainly used for safe guarding of a material hoisting machine such as a headframe, a portal frame and the like. The safety device comprises a lifting lug (1), an upper cover (2), a protecting cap (3), a connecting rod (4), a bottom board (5), a pulling rod (6), a movable plate (7) and a main spring (8). The device is characterized in that a supporting rod (9) is arranged on the bottom board (5); a level (10) is arranged on the top end of the supporting rod (9); a trim screw rod I (11) is arranged on the upper end at one side of the level (10); a return spring I (12) is arranged on the upper end at the other side of the level (10); a travel switch I (13) is arranged on the lower end of the level (10); a push rod (15) passes through a return spring II (14) and the bottom board (5); the upper end of the push rod (15) is provided with a travel switch II (16); a trim screw rod III (18) is arranged on the upper cover (2); a vertical bar of the trim screw rod III (18) passes through the upper cover (2) and extends out of the upper plane of the movable plate (7); and the lower end of the trim screw rod III (18) is provided with a travel switch III (17) which is fixed on the movable plate (7). The device integrates an overload limiting stopper, a superior limiting stopper and an interior limit stopper into a whole, and has the advantages of compact structure, and convenient, safe and reliable use.

The invention relates to a pull-down and roll-up type solar greenhouse roller shutter device and a suing method. A roller shutter shaft is arranged above a greenhouse, a plurality of auxiliary bearingdevices are arranged above a greenhouse body, a strip-shaped roller is arranged on each auxiliary bearing device, the strip-shaped rollers and the roller shutter shaft are parallel and can relativelyslide with a heat preservation quilt; a plurality of sliding ways are arranged on the face of the greenhouse, a rolling rope shaft is arranged at the bottom of the front part of the greenhouse, and asupporting pulley is arranged inside each sliding way; a plurality of rolling ropes are fixedly connected to the tail end of the heat preservation quilt, rolling rope bodies are arranged inside the sliding ways and are in overlapped connection with the supporting pulleys; when the heat preservation quilt is placed down, the rolling rope shaft rotates and drives the heat preservation quilt to slide downwards, when the heat preservation quilt is rolled up, the roller shutter shaft rotates, the heat preservation quilt and the strip-shaped rollers slide relatively so that the heat preservation quilt can be rolled up; the roller shutter shaft and the wound heat preservation quilt do not directly act on the surface of a front slope of the solar greenhouse under gravity loads, the phenomenon that peril incidents are caused by dynamic loads in the front slope greenhouse surface unfolding and folding processes is avoided, and the whole structure of the roller curtain device is improved.

The invention discloses an electric hoist rope guide, and relates to the technical field of the rope guides. The electric hoist rope guide comprises a rope guide body. The rope guide body comprises arope guide inner ring and a rope guide outer ring which are correspondingly installed and can be relatively rotated. The rope guide inner ring is mutually cooperated with the rope guide outer ring. The rope guide body is provided with a fastening mechanism for fastening a steel wire rope. The fastening mechanism comprises a rope releasing port installed on the rope guide inner ring and the rope guide outer ring, and a pressing component for pressing the steel wire rope. The pressing component bears against the steel wire rope except a position of the rope releasing port. The pressing componentcan be adjusted according to a tension degree of the steel wire rope. The electric hoist rope guide is simple in structure, convenient to install, and capable of enabling the rope guide inner ring tobe tensioned by only adjusting a bolt of a pressure spring if a steel wire rope loosening phenomenon happens after the electric hoist rope guide is used for a long time, solving problems that disordered rope and loosened rope phenomena easily happen in a weightless situation, and rolling and discharging the steel wire rope without the help of any gravity.

The invention discloses a winding drum with cable guide grooves. The winding drum mainly comprises an H-shaped shaft and threaded tracks. The threaded tracks which are neatly arrayed are arranged on the surface of the H-shaped shaft and are of groove-shaped structures, the widths of grooves are matched with the diameters of cables, and the depths of the grooves are matched with the radiuses of the cables. The winding drum with the cable guide grooves has the advantages that the threaded tracks can be in modes for assisting in preventing rearrangement and mistaken arrangement of the cables, and accordingly conditions such as cable compression, disorder and squeezing can be prevented by the threaded winding drum under double protection effects of inspection mechanisms and the threaded tracks; the winding drum is simple in structure, reasonable in design and suitable to be widely applied to industries with requirements on winding displacement equipment.

The invention discloses a drilling drawworks for automatically arranging ropes, comprising: a drawworks frame, a motor, a gearbox, a drum system, a brake system and a rope arranging device. Wherein, the drum system includes a roller and a turntable, the roller is connected to the frame, and two turntables are respectively located on both sides of the roller; the brake system is located on the turntable of the roller system; the rope arrangement includes a bracket, The pulley and the speed limiter are provided with a track on the support, the pulley is buckled in the track and can slide freely on the track, and the speed limiter is located on the support. The beneficial effects of the invention are: when the drawworks starts drilling, the wire rope passes through the pulley to connect with the drill pipe, and the speed governor guides the pulley to move on the guide rail of the bracket, so that the wire rope falls on different positions on the roller. The invention can realize the automatic rope arrangement function of the winch machine, which is convenient to control, prevents the phenomenon of disordered ropes when starting and feeding the drill, and can arrange the steel wire ropes closely and orderly on the rollers without wasting the rope arrangement space, so that the roller system can reach a larger rope capacity.

The invention discloses an opening following roller rope-disorder-prevention winch. The opening following roller rope-disorder-prevention winch comprises a winch support, two roller supports are vertically arranged on the two sides of the winch support, each roller support is provided with a through hole, a non-power end base is arranged on the through hole in one roller support, a power end baseis arranged on the through hole in the other roller support, an end base shaft is arranged on the inner side of the non-power end base, a roller is arranged between the two roller supports, a piston rod set is arranged in each control cylinder, a guide sleeve set is arranged at the outer end of each piston rod set, the other end is connected with an inner clutch plate which is located in a rectangular groove, the outer ends of two guide sleeve sets on the same plane are connected with an outer clutch plate, and a sleeve is fixedly arranged between the inner sides of two clutch ring frames. Through the inner clutch plates, the outer clutch plates and sleeve structures outside the roller, the aims that steel wire ropes are wound on the inner layer and the outer layer, and the ropes are prevented from being disordered are achieved, and the winch is unique in structure and can well solve the problem of winch rope disorder.