2546results about "Base supporting structures" patented technology

The invention relates to a steel structure trestle hoisting device, belongs to the technical field of bridge construction machinery, and is used for solving the technical problems that traditional hoisting equipment is low in mounting precision, poor in posture adjusting efficiency and easy to deform in structure. The device comprises a portal crane main body, wherein an electric trolley of which the stroke is matched with the width of a trestle is arranged at the lower part of a fixed cross beam; the dynamic self-adaptive balance assembly adjusts load balance in real time through a rigid frame, a three-axis tilt angle sensor, a balancing weight and an electric push rod. The lifting appliance group adopts a servo motor to drive four lifting hooks to cooperatively work, and a laser positioning assembly is combined for precise positioning; the digital twinning cooperative control system integrates prediction, control logic and a pre-judgment type intervention module through an embedded industrial controller, analyzes data of an encoder and a pressure sensor in real time, predicts deformation and gravity center shift, and dynamically regulates and controls the hoisting speed, the transverse position of a trolley and the balance weight displacement. The device is suitable for high-precision rapid installation of the large-span steel structure trestle, and the construction safety and efficiency are improved.

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 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 discloses a thermal power plant equipment maintenance device, and belongs to the technical field of thermal power plant maintenance. The winding device comprises a portal frame, a plurality of moving assemblies are movably arranged on the portal frame, a first winding assembly is arranged on the lower portion of each moving assembly, a second winding assembly is arranged on the top of each moving assembly, and position adjusting assemblies are fixedly arranged on the outer walls of the two sides of each moving assembly correspondingly; first electric telescopic columns are rotationally arranged on the outer side walls of the two position adjusting assemblies correspondingly, the output tail ends of the two first electric telescopic columns are fixedly connected with scratch-proof assemblies correspondingly, steering assemblies are fixedly arranged on the top faces of the two position adjusting assemblies correspondingly, and telescopic assemblies are arranged on the outer side walls of the first electric telescopic columns; the first electric telescopic column and the scratch-proof assembly are matched with an anti-swing system on maintenance equipment, the effect of restraining the thermal power plant equipment from swinging is better, abrasion of a steel wire rope can be reduced, and the service life of the equipment can be prolonged.

The invention discloses an anti-swing container portal crane lifting appliance and method, and relates to the technical field of lifting, the anti-swing container portal crane lifting appliance comprises two ground rails and supports slidably mounted on the ground rails, and further comprises a top truss fixedly mounted between the two supports, and a winch is slidably mounted on the top truss; and a driving unit for driving the winch to move is mounted on the top truss. The anti-swing device has the advantages that when a container is hoisted, the steel wire rope is limited through the first anti-swing assembly, the chain hook is limited through the second anti-swing assembly, so that the deflection amplitude of the container is reduced, the stability of the container in the hoisting process is improved, and the second anti-swing assembly controls the anti-swing hardness degree through the inflation amount; the counter-acting force generated by swinging of the container can be effectively counteracted, and the service life of the second anti-swing assembly can be prolonged.

The invention belongs to the technical field of structural strength tests, and particularly relates to a hoisting and loading fixture self-weight balance integrated fixture which comprises a loading actuator, a screw assembly, an outer support, a loading fixture, a connecting rod and an adjusting mechanism. The adjusting mechanism comprises a connecting assembly, a left side balance weight and a right side balance weight. Levers are always in a horizontal state by independently adjusting the balance force of the levers on the two sides of the actuator. The problems that due to the fact that an actuator loading clamp is unbalanced, a lever freely falls, rotates and is stacked, and an actuator is stressed, rotates and deviates, an actuator sensor is subjected to longitudinal and transverse force through composite stacking rotation, changes are complex, uncontrolled actions are prone to being caused, and danger is generated are avoided. And meanwhile, the balancing device belongs to a loading clamp of the loading channel, is integrated with the loading clamp and can synchronously move along with the loading channel, so that the movement change of the loading channel of a large test with hundreds of loading channels is simplified.

An apparatus for assembling a structure, such as a wind turbine or jacket, is disclosed. The apparatus comprises a first erectable structure comprising a first plurality of legs connected by a first connection arrangement. The apparatus comprises a second erectable structure comprising a second plurality of legs connected by a second connection arrangement. The apparatus comprises an elongated structure extending between the first and second erectable structures. The apparatus comprises a lifting arrangement configurable to move a load along the elongated structure between the first and second erectable structures. Methods of deploying the apparatus for assembling a structure and methods of assembling a structure are also disclosed.

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 hoisting, in particular to hoisting equipment for intelligent constructional engineering, a lifting electric cylinder is fixedly connected to the top of a balance supporting plate, mounting boxes are fixedly connected to the top of the lifting electric cylinder, a fixed top box is fixedly connected between the two mounting boxes, and a mounting top plate is fixedly connected to the bottom of the fixed top box; a fixing side plate is fixedly connected to the bottom of the mounting top plate, a fixing rotating shaft is rotatably connected to the bottom of the fixing side plate, connecting plates are rotatably connected to the two ends of the fixing rotating shaft, a hollow groove plate is fixedly connected to one side of the fixing side plate, and an adjusting sliding shaft is slidably clamped to the inner side of the hollow groove plate. The lifting device is simple in structure and particularly suitable for indoor narrow space and high-precision working environment, the lifting efficiency and the working safety can be remarkably improved, intelligent and automatic operation of the lifting device is achieved by adopting an advanced mechanical structure and a control technology, and manual intervention is reduced.

The invention relates to a double-hook synchronism monitoring system and method for an offshore platform, and the system comprises a hoisting platform which is provided with a crane, the crane is provided with a suspension arm, the suspension arm is provided with a plurality of hoisting mechanisms, each hoisting mechanism is provided with a hoisting hook, and the hoisting platform is provided with a pile leg; the RTK measuring system is installed on the lifting platform, and the RTK measuring system is used for measuring the elevation dynamic positions of the multiple lifting hooks in real time; and the platform control system is in signal connection with the RTK measurement system, and the platform control system is used for controlling the hoisting mechanism according to the elevation dynamic position of the lifting hook obtained by the RTK measurement system, so that the elevation difference between different lifting hooks is within a limited threshold value. The lifting platform is stably fixed to the required operation position through the pile legs, so that the lifting platform forms a stable platform; and the RTK measuring system can be used for accurately measuring the elevation dynamic positions of a plurality of lifting hooks, so that the double-hook high-precision synchronous lifting operation is realized.

A building material lifting device belongs to the technical field of building machinery and comprises a support frame body and a distribution trolley. The supporting frame body comprises two counter weight bases arranged oppositely, supporting columns fixedly arranged at the front end and the rear end of the upper surface of each counter weight base in the longitudinal direction, longitudinal beams connected between the tops of the two supporting columns on the same side, a cross beam connected between the two longitudinal beams and lifting equipment connected to the bottom of the cross beam through a linear driving mechanism. The two ends of the cross beam extend out of the outer sides of the longitudinal beams on the same side, an engaged type pushing chain system is further fixedly arranged on the inner surface of the balance weight base and comprises a box fixedly connected with the inner surface of the balance weight base, an outlet is formed in one end of the box, and a pushing chain of the engaged type pushing chain system extends forwards from the outlet in the horizontal direction. And the end parts of the two pushing chains are jointly connected with a distribution trolley. According to the invention, automatic distribution of building materials can be realized, the construction efficiency and the management level are improved, and a technical foundation is laid for automatic development of building construction.

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 invention relates to the technical field of container wharf mechanical equipment, and discloses a container crane heightening device which is characterized in that two lower cross beams are arranged at the two ends of the bottom of a container crane, four walking trolleys are arranged at the four corners of the lower portions of the lower cross beams, and an anchoring mechanism is arranged below the middle position of each lower cross beam; the heightening device comprises four jacking devices, a plurality of flange jacking blocks and anchoring lengthening blocks, the jacking devices are arranged on the inner sides of the four walking trolleys below the lower cross beam, the four jacking devices jack the lower cross beam synchronously, the flange jacking blocks are fixed to the four walking trolleys and the lower cross beam, and the anchoring lengthening blocks are fixed to the flange jacking blocks. And an anchoring lengthening block is fixedly arranged on the anchoring mechanism. The invention further discloses a heightening method. According to the method, the cart part of the crane is heightened, the period is short, the cost is low, the construction safety is good, and the method is particularly suitable for occasions with the heightened height being 3 m or below.

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.

The invention particularly relates to a tower building machine template hanging mechanism for tower building, which relates to the technical field of tower building hanging and comprises a template, a mounting platform arranged on an operation beam of a tower building machine, a winch mounted on the upper side of the mounting platform and a winch steel wire rope wound on the winch, a movable plate is installed at the front end of the installation platform in an inward sliding and embedded mode, a groove is formed in the front end of the movable plate, a roller and a buffering assembly are arranged on the front side of the movable plate, and connecting long strips are arranged on the positions, located above the groove, of the four sides of the multi-direction hook piece in different directions in a hung mode. The hanging rings on the two sides or the four sides of the top of the formwork are hung outwards in a triangular shape through the movable hooks by the connecting long strips, so that multi-directional hanging is achieved, the hanging stability of the formwork is improved, the four connecting long strips can effectively guarantee that when one or two of the connecting long strips are broken, the remaining connecting long strips can continue to be hung, and the hanging efficiency of the formwork is improved. The use safety is greatly improved, and the broken connecting strip is very simple and convenient to replace and maintain in the later period.

The utility model relates to the technical field of mold hoisting equipment, in particular to mold-based hoisting equipment which comprises a cross beam, a hoisting unit, a first lifting unit, a second lifting unit, a first moving unit and a second moving unit, the two ends of the cross beam are connected to the first lifting unit and the second lifting unit through connecting blocks correspondingly. The hoisting unit is movably connected to the lower part of the cross beam; the hoisting motor is used for driving the transmission gear set to move; the hoisting cable is connected to the transmission gear set and the transmission pulley set. The plurality of lifting hooks are connected to the transmission pulley block; the lower portion of the first lifting unit is connected to the upper portion of the first moving unit. The lower portion of the second lifting unit is connected to the upper portion of the second moving unit. The utility model provides the hoisting equipment based on the mold, which is convenient to move and improves the efficiency.

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 provides a transition section assembling system and method.The assembling system comprises a tower crane mechanism and two tower crane walking mechanisms, and the tower crane mechanism comprises a tower frame, a top connecting beam, a hoisting girder, first moving equipment, second moving equipment and lifting equipment; each two tower frames are located on one tower crane walking mechanism, the two tower frames located on the same tower crane walking mechanism are connected through a top connecting beam, two hoisting girders are connected between the two top connecting beams, and two lifting devices are arranged on each hoisting girder. The first moving equipment is arranged on each tower and correspondingly connected with one end of the top connecting beam, the second moving equipment is located on the hoisting girder and correspondingly connected with the fixed end of the hoisting equipment, and the movable end of the hoisting equipment is a hoisting tool. The requirements of high flexibility, low equipment cost, high construction efficiency and wide application range can be met at the same time.

The invention discloses a gantry crane for lifting an overweight steel box girder and a construction method thereof, the gantry crane comprises a first support frame and a second support frame, the first support frame is arranged on one side of the second support frame, sliding cross beams are fixedly mounted at the upper ends of the first support frame and the second support frame, and hoisting devices are movably mounted on the inner sides of the sliding cross beams; the hoisting device comprises a hoister, a sliding clamping seat, a fixed clamping plate, a rotary table and a hoisting frame, the hoisting device is fixedly installed on the outer surface of the upper end of the sliding clamping seat, the fixed clamping plate is fixedly installed on the outer surface of the lower end of the sliding clamping seat, the rotary table is arranged on the lower portion of the sliding clamping seat, and the hoisting frame is movably installed on the outer surface of the lower end of the rotary table. The lifting frame and the rotary table are movably connected through a butt joint shaft; the steel box girder hoisting and moving device is provided with a fixed hoisting and moving structure, the phenomenon that the steel box girder shakes during moving is avoided, meanwhile, the stability of the steel box girder during hoisting and moving operation is improved, and butt joint installation operation can be rapidly completed.

The device comprises a [-shaped operation frame, the [-shaped operation frame comprises an upper cross beam, a lower cross beam and a longitudinal beam, and the upper cross beam and the lower cross beam are vertically welded to the two ends of the longitudinal beam respectively. The U-shaped operation frame is lifted to the limit position by pushing the ram, the limiting insertion rod is matched with the driving mechanism to enable the U-shaped operation frame to rotate by 90 degrees, the lifting hook and the balance hook are located at the top, the portal frame is adopted as a crane, the lifting hook and the balance hook are connected through at least two steel wire traction ropes, and the U-shaped operation frame can be pulled and hoisted. The whole [-shaped operation frame is erected in a stable and vertical posture, operators and auxiliary personnel can conveniently and safely follow up, the operation frame is hoisted to the cardan shaft, the operation frame is clamped and limited through the hoop limiting part, after the cardan shaft is tightly held, the operators disassemble the cardan shaft, then the cardan shaft is hoisted out, and replacement is achieved. The hidden danger that in the prior art, a cardan shaft is prone to slipping is avoided, and safety and working efficiency are remarkably improved.

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 utility model relates to the technical field of portal cranes, in particular to a portal crane supporting leg which comprises a top beam, fixing rods are arranged below the two sides of the bottom face of the top beam, moving rods are arranged in the two fixing rods in a penetrating mode, and fixing adjusting holes are formed in the top ends and the bottom ends of the fixing rods. Fixing supporting frames are obliquely arranged on the two sides of the side wall of the fixing rod, a first fixing plate and a second fixing plate are arranged on the outer walls of the two fixing supporting frames, a fixing plate adjusting hole is formed in the middle of the top end of the second fixing plate, a fixing connecting frame is arranged between the bottom faces of the two fixing supporting frames, and connecting triangular fixing plates are arranged at the two ends of the fixing connecting frame. Auxiliary triangular fixing plates are arranged on the outer sides of the bottom ends of the moving rods, auxiliary supporting frames are arranged on the outer sides of the bottom ends of the two moving rods, moving rod fixing plates are arranged on the outer walls of the top ends of the moving rods, auxiliary supporting frame connecting plates are arranged on the top faces of the auxiliary supporting frames, pulley supports are arranged on the bottom faces of the fixed connecting frames, and universal pulleys are arranged on the bottom faces of the pulley supports.

The utility model discloses a fixing frame used on a stainless steel lining pipe, which comprises annular steel plate rings arranged on the inner side of a pipeline and a channel steel base, the channel steel base comprises two pieces of supporting channel steel and connecting channel steel welded and fixed between the two pieces of supporting channel steel, and the annular steel plate rings are arranged between the two pieces of supporting channel steel. The bottom ends of the annular steel plate rings are fixedly welded to the connecting channel steel, gaps for installation of the lining plates are reserved between the annular steel plate rings and the pipeline, a plurality of steel pipe horizontal supports are fixedly welded between every two adjacent annular steel plate rings, and a plurality of steel pipe vertical supports are fixedly welded between the annular steel plate rings and the supporting channel steel. The fixing support can be matched with an electric hoist to form a hoisting system to install stainless steel pipe pieces, stainless steel lining steel plates can be safely assembled on the premise that the pipeline structure is not damaged, manual hoisting and assembling are replaced with mechanical transmission force of the electric hoist, and the assembling efficiency of the stainless steel lining steel plates is improved.

To provide a heavy object movement device and a heavy object movement method using the heavy object movement device that allows easy transportation to a construction site and installation at the site.SOLUTION: A heavy object movement device comprises: traverse rails; a pair of gantry frames provided facing each other near both ends of the traverse rails; and a lifting mechanism that runs along the traverse rails. A heavy object movement method using the heavy object movement device to move heavy objects includes the steps of: deploying and installing gantry frames having shortened braces and connecting beams, in which the gantry frames comprise a pair of braces that can be expanded and contracted in the height direction, and the connecting beam that connects the upper ends of the braces and can be expanded and contracted in the longitudinal direction; lifting and moving a heavy object by making a heavy mechanism run along the traverse rails while the heavy object is suspended; and minimizing the unfolded gantry frames by shortening both the braces and the connecting beams.SELECTED DRAWING: Figure 2

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.