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326results about "Load-engaging girders" patented technology

Kiloton assembly type module hoisting machine

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.
Owner:CHINA RAILWAY 16TH BUREAU GRP ROAD & BRIDGE ENG CO LTD +2

Multi-tower linkage type aerial hoisting platform

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.
Owner:WUHAN CONSTRUCTION ENGINEERING GROUP CO LTD

Combined lifting appliance for maintenance on gearbox tower of wind generating set

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.
Owner:HANGZHOU EDWANCE DRIVE CHAIN TECH SERVICE CO LTD

Box-type cargo transfer device and box-type cargo lifting device

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.
Owner:北京首嘉钢结构有限公司

Four-dimensional crane rail measurement systems

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.
Owner:FALK PLI ENG & SURVEYING

Equipment for replacing crane motor and speed reducer

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.
Owner:迁安正大通用钢管有限公司

Single-beam rack assembly combination device for steel wire rope hoist

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.
Owner:GERENO (JIANGSU) INTELLIGENT EQUIP CO LTD

Novel European style double-beam crane

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.
Owner:HENAN HUAZHONG CRANE

Anti-seismic frame structure of factory building steel structure

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.
Owner:THE FIFTH ENG CO LTD OF CCCC TUNNEL ENG

Anchoring equipment for deck crane

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.
Owner:WUHAN DUOWEI BRIDGE EQUIP TECH CO LTD

Portal frame

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.
Owner:NODING INTELLIGENCE

A combined gantry crane for demolishing the upper structure of a navigable bridge and a demolition method

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.
Owner:CCCC SECOND HIGHWAY ENG CO LTD

Industrialized building component automatic lifting equipment, digital twin system and lifting method

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.
Owner:SHENYANG JIANZHU UNIVERSITY +2

Main girder structure of open web girder crane

ActiveCN222922790ULoad-engaging girders
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.
Owner:LUOYANG CRANE FACTORY CO LTD

Mine shaft tower crane hoisting method and mine shaft tower crane

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.
Owner:CHINA HUAYE GROUP

Mounting device for mounting lifting member of crane system, crane trolley and crane thereof

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.
Owner:KONECRANES GLOBAL OY

Large steel frame structure hoisting device

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.
Owner:CHINA THIRD METALLURGICAL GRP

Connection joint structure of crane beam and shoulder beam

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.
Owner:CISDI ENGINEERING CO LTD

Telescopic device for rubber-tired crane

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.
Owner:AIPAL TECH CO LTD

Beam type hoisting structure convenient to assemble

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.
Owner:CHINA GEZHOUBA GROUP MACHINERY & SHIP

Integral displacement and installation method for crane

The invention provides an integral displacement and installation method for a crane, which comprises the following steps: S1, after the crane completes production in a first production area, obtaining the distance between first rails of the crane, and laying a second rail in a second production area based on the distance between the first rails; and S2, the lightering vehicle is driven to the lower portion of the main beam of the crane, and the top of the lightering vehicle is connected with the crane after being jacked up. And S3, the lightering vehicle is controlled to continue to rise so as to jack up the crane, the lightering vehicle is controlled to move into the second area, and movement of the crane is completed. And S4, the crane is controlled to descend and accurately fall onto the second track, and installation of the crane is completed. Through the arrangement of the supporting part, the crane can be wholly placed on the falling pier; through the arrangement of the telescopic part, smooth derailment of the crane is ensured; and through the arrangement of the moving part, the lightering vehicle combination can move in a linkage mode and accurately enter a rail. The process of dismounting the crane can be omitted, the crane is integrally moved and mounted, the construction steps are saved, the operation process is optimized, and the construction period is shortened.
Owner:JIANGNAN SHIPYARD (GRP) CO LTD

Anti-bending high-strength steel structure supporting structure for crane main beam

The utility model discloses an anti-bending high-strength steel structure supporting structure for a crane main beam, which comprises a main beam body, and side beams are symmetrically arranged on the left side and the right side of the outer part of the main beam body; connecting and fixing mechanisms used for installing the main beam body are arranged on the outer side of the main beam body in a bilateral symmetry mode, and anti-bending mechanisms used for supporting and fixing the main beam body are arranged on the inner side and the lower portion of the main beam body. According to the anti-bending high-strength steel structure supporting structure for the crane main beam, by arranging the anti-bending mechanism, supporting and fixing of the main beam are enhanced, it can be guaranteed that the main beam cannot be bent, meanwhile, the connecting and fixing mechanism is arranged, mounting and fixing between the main beam and the side beams are enhanced, and the stability of the main beam is improved. The supporting mechanism is arranged between the main beams, the phenomenon that the main beams are loosened during installation can be effectively avoided, the adjustable mechanism is additionally arranged, the supporting mechanism between the main beams can be effectively adjusted, and the flexibility of supporting adjustment is greatly improved.
Owner:ZHEJIANG ZHIZAO HEAVY IND CO LTD

Crane girder lifting device

The utility model relates to a crane main beam lifting device which is characterized in that a crane is movably arranged on a main beam, the lower ends of the two sides of the main beam are respectively arranged on the middle parts of end beams on the two sides, and crane main beam lifting devices are respectively arranged between the two sides of the main beam and the end beams on the two sides. The device comprises hydraulic cylinders, main beam connecting plates, end beam connecting plates and high-strength bolts, the lower ends of the two sides of a main beam are each provided with one main beam connecting plate, a groove is formed in the middle of each end beam, the hydraulic cylinders are installed in the grooves in the middles of the end beams, and the telescopic ends of the upper ends of the hydraulic cylinders are connected with the middle positions of the lower ends of the end beam connecting plates; the periphery of the end beam connecting plate is fixed to the lower end of the main beam connecting plate through a plurality of high-strength bolts. The lifting device has the advantages that the design is ingenious, the structure is reasonable and compact, the main beam can be lifted through the hydraulic cylinders on the two sides under the condition that the cranes on the upper layer and the lower layer are staggered, the cranes are lifted to a certain height, and the ideal lifting height can be obtained when the cranes are lifted.
Owner:NANTONG LIFUTONG HOISTING MASCH CO LTD

Subway deslagging portal crane

The invention provides a subway deslagging portal crane. The subway deslagging portal crane comprises a ground rail, a portal frame arranged on the ground rail, a crane carriage arranged on the portal frame and a deslagging lifting appliance connected with the crane carriage, the portal comprises a main beam and portal supporting legs arranged at the lower end of the main beam, a plurality of walking mechanisms are arranged at the lower ends of the portal supporting legs, a first cleaning mechanism and a second cleaning mechanism are arranged at the two ends, corresponding to the ground rails, of the walking mechanisms correspondingly, and the first cleaning mechanism comprises a scraper which is used for scraping dirt on the top faces and the two sides of the ground rails; the second cleaning mechanism comprises a spraying head, the spraying head is used for conducting spraying cleaning on the ground rail, and the distance between the second cleaning mechanism and the middle of the walking mechanism is larger than that between the first cleaning mechanism and the walking mechanism. The subway deslagging portal crane is scientific and reasonable in design, the ground rail can be cleaned conveniently, and the situation that normal operation of equipment is affected by mud on the ground rail is avoided.
Owner:HENAN HENGYUAN HENGSHAN IND CO LTD

Rotary telescopic electromagnetic lifting appliance

The utility model discloses a rotary telescopic electromagnetic lifting appliance which comprises a balance beam, the middle of the balance beam is movably connected with a main beam through a rotary motor and a rotary assembly, the middle of the bottom end of the main beam is connected with a lifting hook assembly through a rib plate, and telescopic beams are symmetrically arranged in the two ends of the main beam. The main beam is movably connected with the telescopic beam through a telescopic motor, and the lower portion of the main beam and the lower portion of the telescopic beam are connected with the corresponding electromagnets through chains. The rotating motor drives the transmission shaft, the rotating transmission gear and the rotating piece of the slewing bearing, so that the free rotating hoisting of the main beam of the hoisting tool at the angle of more than 270 degrees is realized; the telescopic beams are matched in the two ends of the main beam and the guide device, so that the telescopic beams can stretch and retract easily and freely in the guide direction; and a built-in encoder of the telescopic motor can feed back the telescopic position of the actual telescopic beam of the lifting appliance in real time, so that the problems of inconsistent wire proportions, unbalanced lifting appliance fixing points or different weights of two ends of steel in the lifting process of the lifting appliance are greatly solved.
Owner:HUNAN KEMEIDA ELECTRIC

Monorail hanging beam adjusting device

The utility model relates to the technical field of monorail hanging beams, in particular to a monorail hanging beam adjusting device. According to the monorail hanging beam adjusting device, the monorail hanging beam can be supported by adjusting the heights of the limiting frame, the pressing frame and the clamping frame, the monorail hanging beam adjusting device can adapt to supporting of the monorail hanging beams with different heights, manpower is saved, the risk of falling during high-place operation is avoided, and construction efficiency and safety are improved. A monorail hanging beam adjusting device comprises a support, a bevel gear, a lead screw and the like, the lead screw is rotationally connected into the support, and the bevel gear is connected to the lower portion of the lead screw. The lead screw rotates to enable the sliding frame to move upwards, and then the limiting frame, the pressing frame, the telescopic spring, the connecting frame and the clamping frame are driven to move upwards, so that the heights of the limiting frame, the pressing frame and the clamping frame can be adjusted to lift the monorail hanging beam, the monorail hanging beam lifting device is suitable for lifting the monorail hanging beams with different heights, manpower is saved, and the working efficiency is improved. And the risk of falling during high-place operation is avoided, and the construction efficiency and safety are improved.
Owner:SHAANXI BINCHANG XIAOZHUANG MINING CO LTD

A method for replacing and correcting the main beam of a four-beam casting crane bridge

The present invention discloses a method for replacing and correcting the main beam of a four-beam casting crane bridge. A three-dimensional adjustment bracket is used to assist in correcting the main beam of the replaced bridge. The main beam replacement and correction method specifically includes the following steps: X-direction correction to make the distance between the main trolley track on the new main beam and the original main trolley track on the original main beam meet the parameter requirements; Z-direction correction to make the horizontal height of the upper plane of the new main beam meet the parameter requirements; Y-direction locking to lock the corrected new main beam. The method for replacing and correcting the main beam of a four-beam casting crane bridge disclosed by the present invention can replace and correct the main beam of the four-beam casting crane bridge at the use site, without the need to pre-install, align, adjust, process and weld the bridge as a whole at the manufacturer, and then transport it to the use site, thereby saving maintenance costs, improving maintenance efficiency, and promoting efficient and safe production.
Owner:МААНЬШАНЬ АЙРОН ЭНД СТИЛ КО ЛТД

Building 3D printer

The invention relates to the field of construction, namely, a building 3D printer. The building 3D printer includes a base (1) and a vertical guide column (3). A movement unit is installed on the guide column (3). A main boom (6) is attached to a support and rotation device (5) of the movement unit. An auxiliary boom (7) is installed on the remote end of the main boom (6). An extrusion unit (8) is fixed to the extended end of the auxiliary boom (7), connected via a solution supply pipeline (9) to a mixing unit (10). The equipment for preparing a solution of the mixing unit (10) is installed on the support and rotation device (5). The base (1) contains an x-shaped four-end frame (22). An automated support (2) is installed on each extended end of the frame (22). Each support (2) contains a lifting mechanism installed in a housing (23), which contains a stepper motor (24) connected to a reducer (26). The stepper motor (24) is connected to a control and information-processing unit. The reducer (26) includes a movable plate (29) with sliders (28) mounted on the reducer (26) and a support nut (36).
Owner:FURMAN INNA