1799results about "Base supporting structures" patented technology

The invention provides a hoisting method of a flare tower. The hoisting method comprises the following steps: calculating the total weight and the gravity center position of a flare tower assembly; according to the requirements of the lifting height and the preset inclination angle, a balance weight piece and a main lifting lug are additionally arranged on the flare tower, so that the included angle between the horizontal plane and the connecting line between the main lifting lug of the lifted flare tower and the gravity center of the flare tower assembly is within the preset inclination angle range; welding two connecting pieces and a positioning rod at the bottom of the flare tower; hoisting the flare tower in a horizontal mode to enable the flare tower to be separated from the supporting surface; inclining the flare tower to enable the included angle between the center line of the flare tower and the horizontal plane to be a preset inclination angle; the flare tower is lifted to a deck, and a positioning rod at the bottom of the flare tower gradually gets close to a limiting device arranged on the deck; slowly moving the flare tower until the positioning rod enters the limiting device so as to limit the rotation of the positioning rod; and rotating the flare tower to enable the flare tower to vertically stand on the deck, and welding the base of the flare tower and the deck.

The utility model relates to a multifunctional combined type gantry lifting system which comprises a combined type lifting tower and a climbing type hydraulic jacking device. The combined lifting tower is composed of four stand columns, two longitudinal lifting beams, a plurality of transverse lifting beams, a lifting appliance, a longitudinal supporting structure and a transverse supporting structure. The climbing type hydraulic jacking device is composed of a hydraulic cylinder, a lower telescopic locking mechanism and an upper telescopic locking mechanism. According to the utility model, the main body structure assembled in a modularized manner is matched with the climbing type hydraulic jacking device, so that the hoisting requirements of equipment with different specifications can be met; the overall structure of the system is compact, the required site space is small when large equipment is hoisted, assembly, disassembly and transportation are convenient, the turnover utilization rate of the equipment is greatly improved, and the construction cost is reduced; and by matching with a horizontal sliding mechanism, vertical lifting and horizontal transverse moving of large equipment can be achieved, use is convenient and flexible, and applicability is high.

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.

The invention relates to the technical field of pipeline hoisting, in particular to intelligent large pipeline hoisting equipment and method.The intelligent large pipeline hoisting equipment comprises a first portal frame, a track beam and a second portal frame, and the track beam is arranged above the first portal frame and the second portal frame; a walking trolley moving in the length direction of the track beam is arranged on the track beam and used for hoisting and transporting a pipeline. The first portal frame is used for achieving butt joint of a loaded pipeline and a to-be-loaded pipeline, and the track beam and the second portal frame are matched to achieve transportation of the to-be-loaded pipeline to the first portal frame. Different from an existing manual pipeline butt joint mode, a pipeline hoisting point is arranged at the top of the slope, the pipeline hoisting, transporting and butt joint process is controlled through the portal frame control system, operation is completed through automatic control, labor is reduced, the labor cost is reduced, and the construction efficiency is improved.

The present invention belongs to the technical field of cranes, and discloses a guide rail structure for a ship crane, which includes two support components; a stay cable component; two sets of connection components; a slide rail component; a drive component and an auxiliary component. By installing the newly designed auxiliary component, the lifting structure hangs and hoists the heavy object, and before starting, the auxiliary component is flexibly driven according to the position where the heavy object is hoisted. If the heavy object is on the front side of the slide rail component, the first motor can be driven, and the lead screw is driven to rotate counterclockwise through the bevel gear set, so that the moving plate moves backward in the track groove. At this time, the two sets of third springs on the front side will be stretched, and the two sets of third springs on the back side will contract. In this way, the first guide rail on the front side will receive a stronger pulling force, solving the problem that the traditional guide rail structure uses hard connection, and the connection strength on both sides of the horizontal position is not adjustable, which may cause the negative effects of loosening and bending of the guide rail frame connection after multiple hoistings.

An expandable cable trolley system for supporting cables for a hoist from a trolley configured to travel along an overhead beam. The cable trolley system includes a first block, a second block, and a third block with cooperating curved slots that form openings to receive the cables. The first block has at least one roller mounted on the top surface for engaging with an overhead beam. The second block is disposed below and attaches to the first block. The third block is disposed below the second block and attaches to the second block. The configuration of the multiple blocks provides for an expandable system that can be formed into multiple rows by means of one set of fasteners having substantially the same length.

The invention relates to a method and a device for mounting roadway girders or rail elements on bridge piers to form a bridge structure. The process begins with transport, during which a deck beam 2 is moved beneath a lifting and transport system 1 on the assembly support 3. By pivoting the assembly support 3 on the lifting and transport system 1, a lateral offset is achieved, and the deck beam 2 to be installed is pivoted into the longitudinal axis of the already installed deck beam 2. It can then be lowered onto the bridge pier 5 and welded to the already installed deck beam 2.

The invention relates to the technical field of hoisting equipment, and discloses material hoisting equipment for constructional engineering, the material hoisting equipment comprises two fixing frames, an outer support, a winch and a cage, the two fixing frames are symmetrically mounted on a building platform, the outer support is hinged to the fixing frames, and a first steel rope on the winch winds around the outer support to hoist the cage; after the winch lifts the lifting cage to the platform where the fixing frame is located through the first steel rope, the first steel rope pulls the outer support to rotate, so that the lifting cage is transferred to the platform, and through structural innovation and safety design, the operation problem of traditional lifting equipment in a space limited scene is effectively solved; the lifting cage is more suitable for material lifting operation after a main body structure of a low-rise building is completed, the lifting cage is vertically lifted to the height of the platform firstly through winding of the first steel rope, then the outer support is pulled to rotate, the lifting cage is stably transferred to the platform, and the construction efficiency and safety are improved.

The invention discloses a modular assembly type hydraulic jacking portal crane which comprises a rail device, a hydraulic jacking device and a hydraulic jacking device. The number of the walking devices is two, the walking devices are movably arranged on the left track and the right track respectively, each walking device comprises a power unit and a walking vehicle, and the power units are connected to the walking vehicles in a replaceable mode and used for driving the walking vehicles to move along the track devices; the supporting device is detachably arranged on the walking vehicle; the cross beam is detachably arranged on the supporting device; wherein the rail device, the walking device, the supporting device and the cross beam are all of modular structures and can be adaptively adjusted and assembled according to needs, and the driving friction force of the power unit relative to the rail device can be adjusted. The crane can efficiently and conveniently complete manual installation, hoisting operation and disassembly transition in a high-floor room and other scenes with limited space, the driving friction force can be accurately and efficiently adjusted, and efficient and safe load hoisting can be achieved.

The invention belongs to the technical field of cranes, and discloses a stable feeding device for building construction, the stable feeding device comprises a crane body, the bottom end of the crane body is provided with a vehicle bottom groove, the two sides of the top end of the vehicle bottom groove are both provided with first supporting parts, and the first supporting parts are each provided with a second supporting part; deep anchor points are formed through the conical head and the ground pressure plate, first-level anchoring is formed, deflection-free downward moving positioning can be carried out for different stratums, high-strength supporting operation is achieved, the multiple sets of supporting shaft columns are adaptive to concave-convex ground through the abutting plate, multiple supporting points are expanded, second-level assistance is achieved, the number of the supporting points is increased, and the supporting area is expanded. A more stable mechanical structure is formed, lateral torque and sudden load impact can be effectively resisted, the probability of occurrence of overturning accidents is reduced, the stable state of the crane body during hoisting and feeding of building materials is guaranteed, the supporting shaft column is in linkage with the hollow ring through the supporting shaft rod, the field angle is automatically adjusted along with the anchoring depth, and load distribution is optimized.

The invention relates to the technical field of protective devices, in particular to a protective device self-adaptive to crane loads. According to the technical scheme, the device comprises a main body, an installation plate is fixedly installed at the bottom of the main body, an operation table is installed on the main body in a sliding mode, a mooring rope is rotatably installed in the operation table, a hook is rotatably installed at one end of the mooring rope, and the device further comprises a stabilizing mechanism which is arranged at the bottom of the main body and used for fixing the hook in horizontal sliding. The hook is fixed in the hoisting process, uneven stress of the cable caused by shaking is avoided, meanwhile, the cable is buffered in the transportation process, the cable is prevented from being broken, objects are transported stably, and the safety coefficient is high.

The utility model provides a replacement system. The replacing system is used for replacing or maintaining a to-be-maintained device of the wind generating set, the to-be-maintained device comprises to-be-maintained equipment assembled on a rack of the wind generating set, the replacing system comprises a hoisting device and a winding device, the hoisting device is detachably connected to the rack and comprises a hoisting component used for being connected with the to-be-maintained equipment, and the hoisting component is detachably connected to the rack. The hoisting component is connected with the winding device through a rope; the first supporting frame and the to-be-maintained equipment are arranged on the same side of the tower drum, and the first supporting frame is used for placing the to-be-maintained equipment and / or to-be-replaced equipment; and the second supporting frame and the first supporting frame are oppositely arranged on the other side of the tower drum, and the winding device is installed on the second supporting frame. The replacement system comprises a plurality of parts which are arranged in a scattered mode to work cooperatively, and compared with large professional hoisting equipment adopted in the prior art, the hoisting difficulty is lowered, and the replacement cost is saved.

A photovoltaic array semifinished product (2000) mounting device (1000), comprising: a gantry body (100), comprising a vertical supporting assembly (11), a transverse supporting assembly (12), and a locomotion mechanism assembly (13), wherein the transverse supporting assembly (12) is borne on one side of the vertical supporting assembly (11) in the vertical direction, the locomotion mechanism assembly (13) is arranged on the other side of the vertical supporting assembly (11) in the vertical direction, and the transverse supporting assembly (12) and the vertical supporting assembly (11) define and form an operation space; a carriage (200), comprising a frame (21), wherein the frame (21) is slidably connected to the transverse supporting assembly (12) of the gantry body (100) and can be connected to a lifting appliance (900), the lifting appliance (900) is configured to hoist the photovoltaic array semifinished product (2000) in the operation space, and the photovoltaic array semifinished product (2000) comprises a plurality of photovoltaic panels; and a fine-adjustment device (300) configured to drive the lifting appliance (900) to move in a first direction (X) and / or a second direction (Y) relative to the frame (21), so as to adjust the position of the lifting appliance (900) in the first direction (X) and / or the second direction (Y), thereby accurately aligning and mounting the photovoltaic array semifinished product (2000), and improving the mounting operation efficiency and the mounting precision.

The invention relates to the technical field of buildings, in particular to a stable type auxiliary load-bearing hoisting long arm which comprises a trapezoid supporting reaction frame and a balance adjusting assembly installed on the trapezoid supporting reaction frame, and the balance adjusting assembly comprises a balance adjusting operation rod, a control module, a triangular supporting assembly and an adjusting cylinder connected with the triangular supporting assembly. The balance adjusting operation rod is installed in the adjusting cylinder, a supporting plate is arranged at the end, penetrating through the adjusting cylinder, of the balance adjusting operation rod, and a control transverse rod is arranged at the other end. A movable counterweight assembly capable of sliding on the balance adjustment operating rod is arranged on the balance adjustment operating rod between the control cross rod and the adjusting cylinder; the movable counterweight assembly comprises a counterweight box inserted in the balance adjusting operation rod in a penetrating mode, a stepping motor located in the balance adjusting operation rod and a lead screw connected with the stepping motor. The sliding weight box is simple in structure, visual, simple and convenient to operate and flexible to apply, the position of the sliding weight box can be automatically adjusted, and it is ensured that heavy objects can be moved with small force.

The invention relates to the technical field of hoisting equipment, in particular to turnable single-beam electric hoist hoisting equipment which comprises a supporting frame, a fixed rail beam and an electric hoist, the electric hoist comprises a walking mechanism and a hoisting mechanism, and a shaft body is fixed to the middle of the top face of the swing rail beam; the tops of the multiple fixed rail beams are fixed to the top of the supporting frame, the swing rail beams are arranged between the corresponding ends of the two fixed rail beams which are perpendicular to each other, and the shaft body is rotationally connected to the top of the supporting frame in a sleeving mode. A disc with the top face fixedly connected with the bottom face of the walking mechanism is arranged at the top of the hoisting mechanism, the disc is fixedly sleeved with a slewing bearing, the walking mechanism is provided with a power piece in meshing transmission with a rotating outer ring gear ring of the slewing bearing, and a telescopic clamping mechanism is fixed to the rotating outer ring of the slewing bearing in the radial direction. The telescopic clamping mechanism comprises a clamping piece which can move in the radial direction relative to the slewing bearing and is in sliding clamping fit with the bottom of the fixed rail beam in the axial direction. Therefore, the walking direction of the single-beam electric hoist can be adjusted stably and smoothly.

The utility model provides replacement equipment. The replacement equipment comprises two frame bodies arranged side by side, each frame body comprises a stand column, a first cantilever beam and a second cantilever beam, the stand columns are arranged in the height direction and detachably connected to the top of a supporting structure used for installing to-be-maintained equipment, and the first cantilever beams and the second cantilever beams are arranged in the length direction and detachably connected to the top of the supporting structure; the two sides of the stand column are connected in the length direction; the transverse rail is arranged in the width direction, and the two ends of the transverse rail are connected with the two first cantilever beams respectively; the first pulley assembly is arranged on the transverse rail in a sliding mode and used for being connected with equipment to be maintained; one end of the second pulley assembly is slidably arranged on the first cantilever beam along the height direction, and the other end is fixedly connected with the cross rail; and a counter weight matched with the weight of to-be-maintained equipment can be hung on the second cantilever beam. And by arranging the frame body structure of the replacement equipment, the hoisting difficulty is reduced, and the replacement cost is saved.

The present invention discloses a hoisting method for high-rise building construction, which includes the following specific steps: S1. Installation of hoisting equipment, the hoisting equipment includes a walking structure, a tower column body, an external climbing frame, a crossbeam track, and a hoisting trolley; S2. Construction of a climbing foundation, first construct the core area of the second floor, and the hoisting equipment climbs to the floor slab of the core area by using its own jacking system; S3. The hoisting equipment hoists and transports building consumables; S4. Dismantling. The hoisting method proposed in this application, during the construction of high-rise buildings, as the building height gets higher and higher, the hoisting equipment uses its own hoisting system to achieve climbing with a large height difference, with less use and occupancy of standard sections, reducing the construction cost. The hoisting equipment moves on the roof of the building, covering the entire construction area, and it is more convenient to hoist building materials to the destination, solving the problems of limited operation radius of existing tower crane equipment, more structural steel used for jacking, and high maintenance cost for setting up multiple tower crane equipment at the same time.

The utility model relates to a hoisting device used in a narrow space, which belongs to the technical field of underground construction engineering, and is characterized in that an auxiliary mounting frame and a connecting piece are arranged, the connecting piece is in sliding connection with a cross beam through a stepping motor ball screw structure, and the connecting piece drives the auxiliary mounting frame to move together; and the flexible adjustment of the distance between the main mounting frame and the auxiliary mounting frame is realized.

The invention discloses an electric hoist rope protection device, and relates to the technical field of electric hoists. The device comprises a fixing plate, a bobbin is fixedly installed on the fixing plate through a first connecting plate, a wire wheel is rotatably installed in the bobbin, a steel wire rope is wound around the wire wheel, a worm wheel is fixedly installed on a rotating shaft of the wire wheel, the worm wheel is meshed with a worm, the worm is fixedly installed at the output end of a driving motor, and a first transmission wheel is fixedly installed on the worm. The first transmission wheel is in transmission connection with a second transmission wheel through a first transmission belt. The reciprocating threaded rod drives the moving block and the sleeve to reciprocate, the steel wire rope is evenly wound on the wire wheel, the phenomena of rope disorder and rope stacking are effectively avoided, abrasion and fatigue damage of the steel wire rope are reduced, and therefore the service life of the steel wire rope is prolonged. And meanwhile, the stability of the steel wire rope in the winding and unwinding process is guaranteed, and the safety and stability of lifting operation are improved.

The invention relates to the technical field of truss positioning and transshipment, in particular to a positioning and clamping device and a semi-portal type transshipment truss.The positioning and clamping device comprises a positioning seat, a rotary driving part and a clamping part, the rotary driving part is installed at the upper end of the positioning seat, the positioning seat is driven to rotate through the rotary driving part, and the clamping part comprises a bidirectional driving part and two sets of clamping jaws; a clamping sliding rail is installed on the positioning seat, the two sets of clamping jaws are connected to the two ends of the clamping sliding rail in a sliding mode through clamping jaw sliding blocks respectively, the two-way driving piece is installed on the positioning seat, the two clamping jaws are driven by the two-way driving piece to synchronously and reversely move, the two clamping jaws are symmetrically installed relative to the two-way driving piece, and positioning grooves are formed in the clamping jaws. The positioning groove is in a V shape, and the horizontal distance between the two inclined side walls of the positioning groove is gradually reduced. The clamping and butting device has the effects of further reducing the clamping and butting work difficulty and improving the universality of the truss.

The invention relates to the technical field of casting, in particular to a casting lifting device convenient to adjust, which mainly comprises a gantry bracket, avoiding grooves are formed in two side walls of the gantry bracket, a transmission screw rod is arranged in one group of avoiding grooves, a guide block is screwed on the transmission screw rod, and the guide block is connected with a lifting rod; the clamping assembly is arranged below the lifting rod and comprises a plurality of groups of clamping blocks which are close to or far away from each other; the adjusting assembly is arranged on the side walls of the sides, close to each other, of the clamping blocks, and the adjusting assembly comprises a plurality of sets of push plates elastically connected with the side walls of the clamping blocks; according to the crankshaft clamping device, the multiple sets of clamping blocks are driven to get close to one another through cooperation of the rotationally-arranged adjusting plate and the through groove to clamp a crankshaft, in the clamping process, the elastically-arranged push plates make contact with the surface of the crankshaft, the end of each push plate is made to form the shape matched with the surface of the crankshaft, and therefore it is guaranteed that all the clamping blocks can make contact with the surface of the crankshaft.

The utility model relates to the technical field of hoisting equipment, in particular to a paleontological fossil hoisting device capable of being flexibly adjusted. The amplitude adjusting part comprises a plurality of gear boxes arranged at the top of the transverse plate at intervals, each gear box is provided with two driving shafts, the driving shafts of the gear boxes are each provided with a second winding wheel, and each second winding wheel is wound with a positioning belt penetrating through the transverse plate in a sliding mode. The fossils at different positions can be subjected to multi-point inclination and height adjustment in the assembling process through a positioning belt in the amplitude adjusting piece, the problem that the positions of the fossils deviate due to the fact that a traditional crane only depends on vehicle body movement or arm frame rotation is effectively solved, and the flexibility and adaptability of the device in the carrying and splicing operation are enhanced.

The utility model belongs to the technical field of building construction, and particularly provides a steel structure hoisting device used indoors, which comprises an H-shaped steel beam, two stand columns, a rail electric hoist and a connecting assembly, two ends of the H-shaped steel beam are fixedly connected with the two stand columns, driving assemblies are arranged at the bottom ends of the stand columns, and the rail electric hoist is slidably mounted on the H-shaped steel beam. A hook of the tracked electric hoist is detachably connected with a steel structure through a connecting assembly, the connecting assembly comprises two steel wire rope lantern rings, a sleeve, a sleeve rod and two buckles, one end of the sleeve is in sliding connection with one end of the sleeve rod, the other end of the sleeve is fixedly connected with the two steel wire rope lantern rings through the two buckles, and the two steel wire rope lantern rings are arranged on the hook in a sleeving mode. Through the arrangement of the two steel wire rope lantern rings, the sleeve, the sleeve rod and the two buckles, the distance between the bottom ends of the two steel wire rope lantern rings can be limited during hoisting, the bottom ends of the steel wire rope lantern rings are prevented from moving towards the center, the balance of the gravity center of a steel structure is ensured, and the safety performance is improved.

The invention discloses a rapid and stable lifting system for beam reinforcing steel bars and a construction method, and relates to the technical field of building construction machinery. A plurality of alignment hydraulic cylinders are installed at the top end of a bottom support integration frame at equal intervals, an ascending supporting frame is clamped to the top ends of the alignment hydraulic cylinders, and alignment electric sliding rails are symmetrically installed at the bottom end of the inner side of the bottom support integration frame; the top end of the alignment electric sliding rail is connected with an alignment bearing sleeve through a sliding rail base, and an alignment motor is installed on the inner side of the alignment bearing sleeve through a motor base. And magnetic attraction fixing and hoisting limiting are utilized, so that the problem that stable hoisting is affected due to deviation caused by shaking of the beam reinforcing steel bars during hoisting is solved, bottom end stress and attraction fixing are utilized, the operation complexity of workers is reduced, and the bundling efficiency and convenience are improved.

The present invention relates to the technical field of building material transportation, and particularly to a building material handling device, which includes a U-shaped frame. A vertically liftable lifting plate is slidably connected inside the frame. Two mounting plates are respectively slidably connected to both sides of the bottom of the lifting plate. At least two windows are opened on each mounting plate, and a vertically liftable lifting component is arranged in each window. The lifting component includes a clamping plate and a special-shaped support block. The clamping plate protrudes towards the center of the lifting plate from the window, and the special-shaped support block is located inside the window. Through the unique design of the lifting component, including the clamping plate and the rotatable special-shaped support block, the present invention realizes the stable lifting and separation of the plates, effectively avoiding the friction damage between the plates caused by the traditional horizontal sliding plate-taking method, and ensuring the appearance quality of the plates. Among them, the lifting plate adopts the design of a rotatable rotating plate, which can adapt to the inclined stacking situation of the plates, making the application scenario of the present invention wider.

The invention relates to the technical field of automobile workpiece conveying, in particular to a suspension conveying device for automobile workpiece surface electroplating treatment, which comprises a gantry conveyor, the gantry conveyor comprises a gantry conveying frame, a suspension unit is mounted on the gantry conveying frame, a damping unit is mounted on the suspension unit, and a vibration unit is further mounted on the suspension unit; the device is used for hanging and conveying automobile workpieces, the shaking lifting appliance is quickly recovered to a static state, then the electroplating efficiency of the automobile workpieces is improved, meanwhile, the residual quantity of treating fluid is reduced through reciprocating rotation of the lifting appliance and vibration of the lifting appliance, the electroplating quality of the automobile workpieces is ensured, and the electroplating efficiency is improved. And the lower end of the lifting appliance can periodically deflect backwards by a certain angle, so that when a workpiece with a complicated shape or a groove is subjected to electroplating treatment, the lifting appliance in an inclined posture can ensure that residual treatment liquid can be thoroughly drained, and the electroplating quality of the automobile workpiece is further ensured.

The invention provides a large-diameter storage tank and isolation lining synchronous installation device and an installation method thereof.The large-diameter storage tank and isolation lining synchronous installation device comprises a tank body and lifting devices annularly arrayed on the periphery of the bottom of the tank body, the tank body is formed by splicing a plurality of ring cylinder sections in a lap joint mode, the cylinder sections are formed by splicing a plurality of arc-shaped pieces in a lap joint mode, and lifting pieces are detachably and fixedly arranged at the bottoms of the vertical lap joint positions of the cylinder sections; the lifting devices are used for being connected with the even number of lifting devices and used for alternately lifting the installed shell ring and the newly-added shell ring. The lifting device is arranged outside the tank body, so that the working space in the tank body is effectively released, the isolation lining can be synchronously mounted in the tank body assembling process, the process splitting caused by the fact that the lifting mechanism occupies the area in the tank body in the traditional process is avoided, the whole construction period is obviously shortened, and the construction efficiency is improved. The management and coordination cost caused by secondary entering is reduced, the lining can be accurately laid and attached under the open, safe and visible working conditions, and the lap joint sealing performance and the structural consistency are greatly improved.

The invention provides an upender suitable for a stacking machine stand column, which comprises a bearing cross beam, a control electric cabinet mounted on the bearing cross beam, a group of driving assemblies mounted on the bearing cross beam and hanging belts in transmission connection with the driving assemblies, and the control electric cabinet is electrically connected with the driving assemblies; the lifting belt is wound on the stacking machine stand column, the bearing cross beam is driven by a travelling crane to be lifted to drive the stacking machine stand column to be suspended, the lifting belt is driven by the driving assembly to drive the stacking machine stand column to rotate, and after the stacking machine stand column is turned over, the travelling crane drives the bearing cross beam to descend. And the overturned stand column of the stacking machine is placed on a workbench. According to the turnover machine suitable for the stacking machine stand column, controllable absorption of impact force in the turnover process can be restrained and achieved, collision between the stand column and the workbench is avoided, deformation or damage of the stand column is prevented, and meanwhile production safety and production efficiency can be improved.

The utility model relates to hoisting equipment technical field, concretely is a kind of outdoor installation of transformer box hoist mechanism, including two hoisting mechanisms being respectively arranged in the both ends of transformer box, hoisting mechanism includes central seat subassembly, two first support leg, two second support leg and hoist subassembly, central seat subassembly includes sleeve column, sleeve column is equipped with threaded lead screw in sleeve, hoist subassembly includes movable rod, cross arm and two lifting arms, the end of lifting arm is lifted transformer box through lifting rope.The transformer box outdoor installation of hoist mechanism, through the design of the rotation connection of first support leg, second support leg and central seat subassembly, by adjusting support leg angle, can adapt to complex outdoor terrain complete transformer box hoisting work, while in transport, support leg can be folded and stored, effectively reduce space occupation, by the equipped universal wheel, so that device can still be moved flexibly after hoisting transformer box, it is convenient to directly transport transformer box to installation position, improve flexibility.

The utility model relates to a hoisting portal frame for concrete prefabricated part machining. The hoisting portal frame comprises a supporting frame, a hollow supporting sliding sleeve is slidably connected to the supporting frame, and a lifting hook connected with hoisting equipment is arranged on the supporting sliding sleeve; supporting frames are rotationally connected to the left end and the right end of the supporting frame, each supporting frame is of a square structure, and the supporting frames are driven by a first driving assembly to rotate around the supporting frame; two mounting blocks are symmetrically arranged on the left side and the right side of the lower surface of the supporting frame, each mounting block is provided with a set of tongs, each set of tongs comprises a front clamping jaw and a rear clamping jaw which correspond to each other, the upper ends of the two clamping jaws are rotationally connected to the mounting blocks, and the clamping jaws rotate around the mounting blocks through a second driving assembly. Through cooperation of the first driving assembly and the second driving assembly, efficient and safe hoisting and carrying of the prefabricated part are achieved, meanwhile, the structure is simple, operation is convenient and fast, adjustment is flexible, and high practical value is achieved.