440results about "Load-engaging girders" patented technology

The invention discloses a pile-beam integrated bridge girder erection machine which comprises a main beam, a front auxiliary supporting leg, a front supporting leg, a middle supporting leg, a rear supporting leg and a pile driving device, and is characterized in that the main beam comprises a left auxiliary main beam and a right auxiliary main beam which extend front and back, and a steel bar connecting frame is arranged on the front portion between the two auxiliary main beams for connection and fixation; supporting beams extending front and back are fixed to the left end and the right end of a bottom beam of each auxiliary main beam, and a top beam horizontally extending front and back is fixed to the top of each auxiliary main beam. A temporary supporting leg composed of a temporary connecting base, a temporary supporting leg barrel and a temporary supporting block which are installed at the front end of a main beam can support the front end of the main beam after the main beam moves forwards, stable supporting of the main beam is guaranteed, and components such as a front supporting leg and a middle supporting leg move forwards normally in the follow-up process; the left side and the right side of the supporting base are each provided with the two reverse rolling wheel sets, and the reverse rolling wheel sets are installed on the main beam, so that the stress dispersion effect on the main beam is better, and the stress of the main beam is more uniform.

The invention relates to the technical field of hoisting equipment, and particularly discloses a kiloton assembly type module hoisting machine which comprises a main beam, supporting legs are fixedly installed at the two ends of the main beam, a running mechanism is slidably connected to the upper surface of the main beam, a winding drum is arranged on the outer surface of the running mechanism, and a steel wire rope is wound on the outer surface of the winding drum. The swinging amplitude of the assembly type module during hoisting is reduced through the buffer assembly, stable multi-point supporting can be conducted on the top end of the assembly type module through the hoisting assembly, the uniformity of the supporting force is guaranteed, displacement of the assembly type module can be found in time, the module can be rapidly adjusted, and the assembly type module can be conveniently and rapidly hoisted. And in addition, when the assembly type module collides or makes contact with other equipment, the guide buffering effect can be achieved, meanwhile, the clamping force on the assembly type module can be increased in the collision process, and the stability of the module in the collision process is improved.

A multi-tower linkage type aerial hoisting platform includes: four tower crane body lifting / lowering parts respectively disposed in an outer periphery of a building to form a rectangle through enclosure, and including a tower crane body and a self-climbing lifting / lowering system that is capable of climbing or descending step by step along the tower crane body; four tower-crane-body-connected support beams, respectively disposed on two opposite self-climbing lifting / lowering systems, where a hoisting platform enclosed by the tower-crane-body-connected support beams is driven by the self-climbing lifting / lowering systems to move up and down synchronously; and four movable tower crane bases, respectively disposed at lower ends of the four tower crane body lifting / lowering parts, including movable chassis that are used as movable supports with a variable platform angle and support parts disposed on the movable chassis, where four corners of the support parts are respectively provided with rotary drilling fastening parts.

The utility model discloses an on-tower maintenance combined lifting appliance for a gearbox of a wind generating set, which comprises a first lifting appliance structure, a second lifting appliance structure and a monorail pulley, the first lifting appliance structure comprises two groups of first support structures and two groups of second support structures, the height of the support structures is adjustable, and the monorail pulley is arranged on the first support structures. The four sets of supporting structures are arranged at the four vertex angle positions in the rectangular direction, and the two same sets of supporting structures are symmetrically arranged. The two groups of first longitudinal beams are arranged in parallel, and each group of first longitudinal beams is fixed on one group of first supporting structure and second supporting structure. According to the utility model, the combined lifting appliance is replaced on the tower and matched with the construction scheme, and the combined lifting appliance and accessories thereof are mounted in the cabin, so that the medium-speed shaft part and the high-speed shaft part of the gearbox in the 2MW wind generating set can be hoisted and replaced in the cabin, and an external crane is not needed to open a cabin cover for hoisting.

The invention provides a bridge deck crane for hoisting corrugated steel web segmental girders, which adopts a main truss, a front fulcrum structure, a walking system, two lifting systems, two lifting appliances and a plurality of telescopic supporting legs, the front fulcrum structure comprises an adjusting cross beam and cushion blocks arranged below the two ends of the adjusting cross beam, the lifting systems are arranged on the main truss, and the lifting appliances are arranged on the main truss. Each lifting system comprises a lifting mechanism, a steel strand and a wire coil, the lifting mechanism adopts a cross-core jack, one end of the steel strand is wound on the wire coil, the other end of the steel strand penetrates through the cross-core jack and then is connected with the corresponding lifting appliance, and the two lifting appliances are fixedly connected to a segmental beam to be installed at an interval; by means of the two lifting mechanisms, the to-be-installed segmental beam can be lifted, the transverse angle of the to-be-installed segmental beam can be adjusted, suspended butt-joint installation of the to-be-installed segmental beam and the installed segmental beam is achieved, and movement of the main truss is achieved through the walking system.

The invention provides automatic hoisting equipment for industrial building components, a digital twin system and a hoisting method. Automatic hoisting equipment for industrial building components comprises an upper-layer truss, a lower-layer truss, a plurality of hydraulic cylinders, two cart track beams, two cross beams, two trolley track beams, two carts, a trolley, a central control room, a plurality of track settlement monitoring laser sensors, an early warning radar, a cart rotary encoder, a trolley rotary encoder, a crane and a plurality of detachable inclined supports. The invention further provides a digital twinning system and a hoisting method of the automatic hoisting equipment for the industrial building components. Automatic grabbing and unhooking functions of building components are achieved through the lifting hook. And through a digital twin system, component hoisting path node self-learning and path planning are achieved, rail settlement and obstacle safety early warning are achieved, state monitoring and management and control of the equipment are achieved based on the digital twin technology, and the operation precision, the automation degree and the safety of the automatic hoisting equipment for the industrial building components are improved.

The invention discloses a large-span rigid suspension multi-support crane, comprising: a truss main beam, a rail trolley is arranged on the truss main beam, a plurality of load-bearing beams, the plurality of load-bearing beams are arranged above the truss main beam, the plurality of load-bearing beams are connected with rails through hanging parts, the rail trolley is slidably connected to the rails, a plurality of reinforcing beams are arranged on the truss main beam and are respectively located between two adjacent load-bearing beams, a main beam trolley, the main beam trolley is slidably connected to the truss main beam, and a control system is electrically connected to the rail trolley and the main beam trolley, and the control system centrally controls the movement of the main beam trolley and the rail trolley. The crane utilizes the structural advantages of the truss structure, does not change the mechanical properties, and can also save costs. The rail trolley is used to increase the width of the crane main beam, increase the operating space of the lifting mechanism within the width range, and increase the safety of use.

The invention relates to the technical field of wharf equipment, in particular to a box type cargo transfer device and a box type cargo lifting device. A box type cargo transfer device comprises a main beam body, a first displacement mechanism, a second displacement mechanism and a lifting device, the first displacement mechanism is connected to the main beam body and drives the main beam body to move in the first direction of a lift car, the lifting device comprises a cargo boom and a hoisting mechanism, the cargo boom is connected with the main beam body through the second displacement mechanism, and the hoisting mechanism is connected with the main beam body through the second displacement mechanism. The second displacement mechanism is used for driving the cargo boom to move in the second direction of the lift car, and the first direction and the second direction of the lift car intersect; the hoisting mechanism comprises a third displacement mechanism and a hoisting piece, the hoisting piece is connected with the cargo boom through the third displacement mechanism, and the third displacement mechanism is used for driving the hoisting piece to move in the extending direction of the cargo boom. According to the technical scheme, manpower can be saved, the cargo transfer efficiency can be improved, mechanical conveying of cargoes from a wharf to a cruise ship deck is achieved, and the cruise ship connection capacity of the wharf is improved.

A system for conducting a non-contact survey of an overhead crane runway system using a survey apparatus that is alternately located in the crane bay or on a crane bridge girder. Disclosed more particularly is a system for testing an overhead crane runway beam 3D alignment or an overhead crane runway rail 3D alignment using a 3D laser scanner.

The utility model discloses a crane motor and speed reducer replacing device which comprises a winch and a winch base, the winch is installed at the bottom end of the winch base, a protruding block is connected to the outer side face of the winch, a rotating shaft is connected to the stirring end of the winch, a handle is connected to the outer side end of the rotating shaft in a clamped mode, and a handle is connected to the bottom end of the handle. The utility model relates to a hoisting device for a single-beam crane, which comprises a winch base, the bottom end of the winch base is connected with a fixed frame, the output end of the winch is connected with a steel wire rope, and the bottom end of the steel wire rope is connected with a hoisting hook. The fixed frame and the sliding seat are fixed on a main beam of the single-beam crane by arranging the fixed frame, the sliding seat, a fastening screw rod and a fastening grabbing wheel; the main beam of the single-beam crane is located in the grooves formed in the fixing frame and the sliding seat, then the fastening grabbing wheel is rotated, the fastening lead screw is driven to rotate and move, when one end of the fastening lead screw abuts against the sliding seat and the fastening grabbing wheel cannot rotate any more, fixing and limiting are completed, and the single-beam crane can be used for rapidly conducting fixing and limiting.

The utility model discloses a ship balance hoisting maintenance device, which relates to the technical field of ship maintenance equipment, improves a single-arm hoisting structure, solves the problems that the stability of heavy and large equipment components is poor and potential safety hazards are easily caused, and comprises a frame body, an electric hoist, a first adjusting mechanism and a second adjusting mechanism, the frame body comprises two cross beams which are arranged in parallel, two longitudinal beams which are arranged in parallel are installed on the cross beams in a sliding mode, hoisting seats are installed on the two longitudinal beams in a sliding mode, and electric hoists are fixedly installed at the bottoms of the two hoisting seats. By arranging the two hoisting seats and the electric hoist, when the hoisting device is used for heavy and large equipment components, the equipment components can be subjected to double hoisting, the stability of the equipment components during maintenance is improved, and the potential safety hazard is reduced.

The utility model discloses a single-beam rack assembling and combining device for a steel wire rope hoist, which belongs to the technical field of steel wire rope hoists, aims at solving the problem that the steel wire rope hoists with different models and sizes are inconvenient to assemble and combine by the existing rack, and comprises two tubular beams, the outer side wall of the tubular beam is sleeved with two symmetrically-arranged supporting columns, adjusting assemblies are arranged between the supporting columns and the tubular beam, and a cross beam is fixed between the two opposite supporting columns. The steel wire rope hoist is assembled and combined through the rack structure with the pair of tubular beams matched with the four supporting columns and the two cross beams, the overall stability and firmness strength of a machine body can be guaranteed, the distance between the supporting columns is adjusted through the adjusting assembly, the rack can be suitable for the steel wire rope hoists with different widths, and the production efficiency is improved. And the length of the cross beam is adjusted through the telescopic assembly, steel wire rope hoists with different lengths can be conveniently erected, and good applicability is achieved.

The utility model discloses a novel European style double-beam crane, which relates to the technical field of double-beam cranes, and particularly comprises a main beam, one side of the main beam is fixedly connected with a cross beam, the upper surface of the main beam is provided with a moving groove, the inner wall of the moving groove is connected with a trolley in a sliding manner, the upper surface of the cross beam is fixedly connected with a partition plate, and the partition plate is fixedly connected with a base. Sliding grooves are formed in the inner walls of the partition plates, and sliding blocks are slidably connected to the inner walls of the sliding grooves. According to the novel European style double-beam crane, the main beam and the sweeping brush are arranged in a matched mode, in the using process, when the trolley moves in the moving groove, sweeping can be conducted in the moving groove through the sweeping brush, then the telescopic effect is improved when the trolley touches pebbles and the like through the elasticity of a fourth spring, and the sweeping brush is in a splayed shape; the cleaning brush is arranged in the dust groove, so that the cleaning brush is inclined to clean the dust groove, dust and impurities fall into the dust groove and finally fall into the dust groove, the cleaning effect is achieved, and the purpose of cleaning is achieved.

The invention relates to the technical field of steel structure frames, in particular to a factory building steel structure anti-seismic frame structure which comprises steel columns, frame beams, inter-column tie bars and crane beams, the crane beams are installed on the side faces of the steel columns, a shell is arranged between every two transversely adjacent steel columns, and adjusting assemblies are arranged in the shells; the left side and the right side of the shell are each provided with a pair of first damping telescopic rods, a base is slidably installed at the bottom end of the base, a guide column is fixedly connected to the middle of the bottom end of the base, a first spring is arranged on the outer side of the guide column, and a damper is installed in the base. According to the anti-seismic frame structure of the factory building steel structure, when equipment in a factory building moves to generate vibration, the vibration is transmitted to the frame structure of the factory building, the vibration in the vertical direction is absorbed through a first spring and a damper, the vibration in the transverse direction is absorbed through stretching and retracting of a first damping telescopic rod, and then the vibration of the whole frame structure is reduced; vibration borne by the crane beam is reduced, and the stability of operation of hoisting equipment on the crane beam is guaranteed.

The utility model discloses anchoring equipment for a deck crane, which relates to the technical field of deck crane installation and comprises a supporting seat and a crane beam, and a distance-adjustable double-anchoring mechanism is arranged between the supporting seat and the crane beam. The distance-adjustable double-anchoring mechanism comprises a guide rail fixedly connected to the outer wall of the top of the supporting base, two sliding pieces slidably connected to the guide rail, a bidirectional air cylinder fixedly installed on the outer wall of the front side of the supporting base and two anchoring assemblies sequentially arranged on the two sliding pieces. When anchoring connection is carried out, the two piston rods of the two-way air cylinder synchronously contract or stretch to control the two sliding pieces to be close to each other in a centering mode or away from each other, and then the anchoring positions of the two anchoring assemblies can be flexibly adjusted. And then the two threaded anchoring rods are controlled by the two hydraulic rods to do lifting motion so as to flexibly adjust the anchoring height, so that the anchoring connection requirements of different crane cross beams can be better met.

The invention relates to the technical field of die bonders, and discloses a portal frame which comprises a cross beam, a heat insulation pad, a first workbench and a first linear motor, a first installation groove is formed in the cross beam and extends in the length direction of the cross beam, the groove bottom face of the first installation groove is connected with the heat insulation pad, and the first workbench is connected to the cross beam. The first workbench can slide in the length direction of the cross beam, the first linear motor comprises a first primary part and a first secondary part, the first primary part is connected to the first workbench, at least part of the first primary part is arranged in the first mounting groove, and the first secondary part is arranged in the first mounting groove; and the first secondary part is connected with the heat insulation pad, a ventilation gap is formed between the first secondary part and the groove bottom face of the first mounting groove in the depth direction of the first mounting groove, in the portal frame, the first linear motor can effectively dissipate heat, and the working efficiency of the first linear motor is guaranteed.

The present invention belongs to the technical field of the construction of the superstructure of a navigable bridge, and particularly relates to a combined gantry crane for demolishing the superstructure of a navigable bridge and a demolition method. A combined gantry crane for demolishing the superstructure of a navigable bridge includes a straight-leg gantry crane, an inclined-leg gantry crane, a leg track, a long-leg track, and an inclined-leg track. Straight-leg gantry crane straight legs and long legs are respectively provided at the lower parts of both ends of the straight-leg gantry crane. The bottom of the straight-leg gantry crane straight leg is movably connected to the leg track, and the bottom of the long leg is movably connected to the long-leg track. Straight-leg gantry crane straight legs and inclined legs are respectively provided at the lower parts of both ends of the inclined-leg gantry crane. The bottom of the straight-leg gantry crane straight leg of the inclined-leg gantry crane is movably connected to the leg track, and the bottom of the inclined leg is movably connected to the inclined-leg track. The combined gantry crane of the present invention has a simple force structure and is convenient to use. During the demolition process of the superstructure of a navigable bridge with limited space, it can reduce the interference with navigation, reduce the number of navigation conversions, significantly speed up the construction progress, and greatly reduce the input cost.

The present invention provides an automatic lifting equipment for industrialized building components, a digital twin system and a lifting method. The automatic lifting equipment for industrialized building components includes an upper truss, a lower truss, a plurality of hydraulic cylinders, two trolley track beams, two cross beams, two trolley track beams, two trolleys, a trolley, a central control room, a plurality of track settlement monitoring laser sensors, an early warning radar, a trolley rotary encoder, a trolley rotary encoder, a crane and a plurality of detachable inclined supports. The present invention also provides a digital twin system and a lifting method for the automatic lifting equipment for industrialized building components. The present invention realizes the automatic grabbing and unhooking functions of building components through a hook. And through the digital twin system, the self-learning and path planning of the component lifting path nodes are realized, the track settlement and obstacle safety warnings are given, and the equipment status monitoring and control are realized based on the digital twin technology, so as to improve the operation accuracy, automation degree and safety of the automatic lifting equipment for industrialized building components.

The utility model discloses a main girder structure of an open web girder crane, which relates to the technical field of cranes and is characterized in that two web plates are respectively provided with a plurality of ports which are orderly arranged at intervals along the length direction of the web plates and penetrate through the web plates, and the plurality of ports on the two web plates are arranged in one-to-one correspondence; a hollow pipe matched with the through openings is arranged between the two corresponding through openings, the two ends of the hollow pipe are both of an open structure, the two ends of the hollow pipe are correspondingly connected with the adjacent through openings respectively, openings are formed in the two ends of the box type main beam, and end plates are arranged at the two ends of the box type main beam. Supporting blocks which are inserted into the openings and are in interference fit with the openings are arranged on the sides, facing the box type main beam, of the end plates; the weight of the box-type main beam can be reduced on the premise that the structural strength of the box-type main beam is guaranteed, vortexes can be effectively prevented from being generated in the box-type main beam, and powerful support is provided for stable operation of the box-type main beam.

The invention relates to the technical field of mounting supports, and particularly discloses a coring machine mounting support which comprises a fixed frame horizontally arranged on a vehicle-mounted container, the fixed frame is detachably and fixedly connected with the vehicle-mounted container, a sliding frame body is horizontally and slidably arranged on the fixed frame, and a rotating frame body is rotatably arranged on the sliding frame body; a movable platform is arranged below the top of the rotating frame body in a sliding mode, a winding mechanism used for lifting the core taking machine body is arranged on the movable platform, a mounting plate is arranged above the top of the rotating frame body in a sliding mode, and a guide mechanism is arranged at one end of the rotating frame body. According to the lifting device, the coring machine body can be conveniently lifted, the whole lifting device is convenient to mount and dismount, light and handy in arrangement and high in applicability, meanwhile, the coring machine body can be driven to perform multi-point convenient construction movement, and the working efficiency is effectively improved.

The utility model relates to the technical field of single-beam cranes, and discloses an environment-friendly single-beam crane, which comprises a main beam, a trolley frame, a hoisting mechanism and a lifting hook, and is characterized in that noise reduction boxes covering moving wheels are symmetrically arranged on the trolley frame, sound insulation glass is arranged in mounting grooves of the noise reduction boxes, and the noise reduction boxes are arranged on the main beam; and the noise reduction box is arranged in the noise reduction box, the honeycomb plate is arranged in the noise reduction box, and the honeycomb holes of the honeycomb plate are filled with the sound insulation cotton, so that noise generated in the moving process of the moving wheel can be greatly weakened and reduced through cooperation of the sound insulation glass, the honeycomb plate and the sound insulation cotton, and noise pollution is reduced.

The application provides a mine shaft tower travelling crane hoisting method and a mine shaft tower travelling crane. The method comprises the following steps: reserving a hoisting hole when the shaft tower is capped, and arranging a primary crown wheel platform above the hoisting hole; hoisting the track beam and the travelling crane beam through the primary crown wheel platform, and installing the track on the track beam; re-twisting the primary crown wheel platform, and arranging a secondary crown wheel platform at the reserved hole at the center position of the top plate of the shaft tower; hoisting the travelling crane beam onto the track through the secondary crown wheel platform; re-twisting the secondary crown wheel platform, and re-arranging a tertiary crown wheel platform above the hoisting hole; and hoisting the walking trolley onto the travelling crane beam through the tertiary crown wheel platform. The application can simply and quickly realize the hoisting of the mine shaft tower travelling crane.

The utility model relates to a rigid air guide support for an aluminum rail main beam and a hoist trolley, which comprises a rigid air guide support for the main beam and a rigid air guide support for the hoist trolley, the rigid air guide support for the main beam comprises a support main body I, an upper joint and a lower joint, the support main body I is mounted on the main beam, and the upper joint and the lower joint are both mounted on the support main body I; the rigid air guide support for the hoist trolley comprises a support body II and a connector, the support body II is installed on the hoist trolley, the connector is installed on the support body II, and the hoist trolley is installed on the main beam. The main beam is installed on the track, the track is provided with an air source triple piece, one end of a spiral air pipe I installed on the track is connected with an air outlet of the air source triple piece, the other end of the spiral air pipe I is connected with an upper connector, and the air source triple piece is connected with an air source; one end of a spiral air pipe II installed on the main beam is connected with the lower connector, and the other end is connected with a connector which is connected with a pneumatic executing mechanism of the hoist trolley through an air pipe.

The utility model relates to a mounting device (20) for mounting a lifting component (14) of a crane system (2), which comprises a shell (24), the shell comprises a rope wheel (28) to restrain the lifting component (14a), and the shell (24) comprises a channel (34) to receive a part of a crane trolley (8) in use. The securing member (38) is configured to be attached in use to the trolley (8), and wherein the housing (24) comprises a recess (40) therein to receive the securing member (38) to constrain a position of the housing (24) on the trolley (8). The utility model further relates to the crane trolley and the crane thereof.

The utility model relates to the field of steel frame hoisting, and discloses a large steel frame structure hoisting device which comprises a base, a vertical steel frame is fixedly connected to the top of the base, a transverse beam is slidably connected to the outer wall of the vertical steel frame, a sliding rail is fixedly connected to the top of the base, and a motor is fixedly connected to the top of the sliding rail. An output shaft of the motor penetrates through the top of the sliding rail and is fixedly connected with a threaded rod, and the outer wall of the threaded rod is in threaded connection with a sliding block. A supporting mechanism is arranged on the transverse moving frame, and when the transverse moving frame moves towards the ground, the supporting mechanism automatically stretches out and opens the pulley support outwards, and an auxiliary supporting effect is provided for the transverse moving frame. Through the arrangement of the motor, the threaded rod, the sliding block and other structures, when the hoisting machine needs to be maintained, the motor can drive the threaded rod to rotate and drive the hoisting machine to fall to the position near the ground, and workers are prevented from climbing to the high position for overhauling.

The utility model discloses a connecting node structure of a crane beam and a shoulder beam, a vibration reduction assembly is arranged between the crane beam and the shoulder beam, the vibration reduction assembly comprises a vibration reduction support fixedly arranged at the top of the shoulder beam and a vibration reduction pad arranged on the vibration reduction support, and the crane beam is fixedly connected with the vibration reduction pad; in the connecting node structure of the crane beam and the shoulder beam, the vibration reduction component is arranged between the crane beam and the shoulder beam, the vibration reduction support can ensure stable installation of the vibration reduction pad and the shoulder beam, and the crane beam is connected with the vibration reduction pad, so that the vibration reduction pad can effectively absorb and relieve vibration energy and impact force transmitted by the crane beam; therefore, the risk of fatigue failure of the shoulder beam is effectively reduced, and the use safety of the structure is improved.

The utility model relates to the field of cranes, and discloses a telescopic device for a rubber-tired crane, which comprises a support, a beam cylinder, a power device, a lubricating device, a telescopic beam and a walking steering mechanism, the supports are welded and fixed to the beam barrel and the telescopic beam, the power device is fixedly connected to the supports through pin shafts, the walking steering mechanism is fixedly installed at the bottom of the beam barrel and the bottom of the telescopic beam, the lubricating device is fixedly installed on the beam barrel through bolts, the number of the supports is two, one support is welded and fixed to the beam barrel, and the other support is welded and fixed to the telescopic beam. And the other support is welded and fixed with the telescopic beam. The rubber-tired crane has the following advantages and effects that the change of the span of the crane is controlled through the extension and retraction of the power device, the rubber-tired crane of which the span can be changed on a conventional ground or a severe road surface is provided, the trouble of replacing different cranes due to different widths of hoisted objects is saved, the comprehensive cost is low, and the utilization rate of the crane is high.

A beam type hoisting structure convenient to assemble comprises a main supporting frame, and the two ends of the main supporting frame are the front end and the tail end used for hanging a chain block respectively. A reinforcing baffle is arranged at the top of the front end of the main supporting frame, and an L-shaped baffle is arranged at the top of the tail end of the main supporting frame. A gasket is arranged at the top of the front end of the main supporting frame and located on one side of the reinforcing baffle. A reinforcing rib plate is arranged in the front end of the main supporting frame and located on one side below the gasket. A plurality of portal frames are arranged outside the main supporting frame and used for framing the main supporting frame. According to the utility model, the strength and the stability of the whole structure are obviously enhanced, a larger hoisting load can be borne, and meanwhile, a stable suspension point is provided for the chain block by arranging the reinforcing baffle plate, the gasket and the reinforcing rib plate, so that the stability and the safety in the hoisting process are ensured.

The present invention discloses a suspension sling for large-angle hoisting construction of concrete box girders and a method for using the suspension sling, the suspension sling comprises a crossbeam, each of which is provided with a lifting ear at both ends in the length direction; a threaded steel bar, which is horizontally fixed above the main beam of the box girder and is threadedly connected to the crossbeam, and the threaded steel bar vertically penetrates the crossbeam; a pair of push blocks, which are respectively arranged on both sides of the width direction of the main beam; wherein a groove for accommodating the push block is arranged on the side of the lifting ear opposite to the push block, and during the hoisting process, the push block is placed in the groove so that the push block and the lifting ear are linked. The lifting ear position of the suspension sling provided by the present invention is adjustable, and can be used for hoisting concrete box girders with large deflection angles, and the spacing between a pair of lifting ears is adjustable, and can be applied to box girders of different sizes.