111results about "Load-engaging girders" patented technology

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

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

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

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

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

The utility model 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.

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).

The utility model relates to double -beam crane technical field, concretely is a kind of crane beam for double -beam crane, including first crane beam, the surface of first crane beam is slidably connected with second crane beam, the top of first crane beam is fixedly connected with machine arm, the top of machine arm is fixedly connected with connecting table, the inner wall of connecting table is rotatably connected with fixed link. In the utility model, adopt pure mechanical linkage design, drive lubrication system by the self-motion of crane operation, need not additional power source, both energy saving and environmental protection and reduce maintenance cost;Innovative staggered helical gear transmission cooperates four groups of oil outlet cotton roller layout, realizes the lubrication coverage of crane beam all directions, no dead angle, effectively solve the problem that traditional lubrication mode is difficult to even cover, still keep stable performance under metallurgical high temperature environment, greatly reduce equipment maintenance frequency and repair cost, with significant economic benefits and practical value.

The utility model belongs to the technical field of hoisting equipment, and particularly relates to a trolley traveling mechanism of a double-beam bridge crane. Comprising a hoisting mechanism arranged above two cross beams, electric guide rails are fixedly mounted at the tops of the two cross beams, sliding blocks are slidably connected to the two electric guide rails, moving blocks are fixedly mounted at the tops of the two sliding blocks, a mounting box is arranged between the hoisting mechanism and the cross beams, and two cross bars are fixedly mounted at the bottom of the mounting box; the two transverse rods are provided with scale marks, the two transverse rods are connected to the two moving blocks in a penetrating mode respectively, two connecting legs are fixedly installed at the bottom of the hoisting mechanism, the bottoms of the two connecting legs extend into the installation box and are jointly and fixedly provided with a bearing plate, and the bearing plate makes contact with the inner wall of the bottom of the installation box. The hoisting mechanism mounting box can be mounted on cranes with different guide rail distances, hoisting mechanisms with different sizes can be quickly mounted in the mounting box for use, and the application range is wide.

This utility model discloses a rail positioning mechanism for a gantry crane, including an iron pad. By optimizing the rail fixing structure design, this utility model significantly improves the reliability and stability of rail fixing. The positioning channel formed by two positioning plates can accurately limit the rail position, ensuring the overall geometric accuracy of the rail after installation. When the first positioning mechanism is installed on the iron pad, it can achieve initial positioning and fixing of the rail, effectively resisting the displacement risk caused by foundation vibration. Furthermore, after the second positioning mechanism is installed on the positioning plate, it forms secondary positioning and fixing, further enhancing the constraint on the rail. This dual positioning and fixing structure can effectively resist alternating loads, impact vibrations, and environmental factors, reducing irregular changes in rail spacing, avoiding poor contact between wheels and rails and rail wear, extending the service life of wheels and rails, reducing maintenance costs and downtime, and improving the operational safety and efficiency of the gantry crane.

The utility model discloses a main beam structure of a double-beam bridge crane, which relates to the technical field of double-beam bridge cranes and comprises two main beam structures, inserting components are respectively arranged on the left sides of the front and rear ends of the main beam structures, and connecting components are respectively arranged on the right sides of the front and rear ends of the main beam structures. Reinforcing steel plates are arranged on the upper sides and the lower sides of the adjacent ends of the two main beam structures correspondingly, two reinforcing pieces are arranged on the upper sides and the lower sides of the main beam structures correspondingly, and two first fixing bolts are arranged at the left ends and the right ends of the opposite faces of the two main beam structures correspondingly. A plurality of second fixing bolts are arranged at the upper ends and the lower ends of the two reinforcing steel plates correspondingly. The two adjacent main beam structures are connected through the inserting assemblies and the connecting assemblies in the two adjacent main beam structures, then the connecting position of the two adjacent main beam structures is covered through the two reinforcing steel plates, and the two adjacent main beam structures are installed and fixed through the first fixing bolts and the second fixing bolts, so that disassembly and transfer are convenient.

This invention provides a construction method for assembling a bridge erecting machine using a tire-mounted gantry crane, comprising the following steps: Step S1, selecting the gantry crane's work site as the assembly site, and assembling sleeper stacks according to the positions of the boom segments; Step S2, sequentially installing multiple segments of the bridge erecting machine's boom on the sleeper stacks using the gantry crane; Step S3, reliably connecting the two side load-bearing beams with bolts; then rotating the upper crossbeam to make it parallel to the boom; Step S4, connecting the rear outriggers to the boom in a horizontal position; Step S5, installing the assembled power assembly at the corresponding position on the boom; Step S6, installing the two lifting trolleys in place; Step S7, fixing the boom to the beam transport vehicle's carrier frame, detaching the gantry crane's boom and lifting hooks to install the rear outriggers' traveling wheels, and setting up the gantry crane for bridge erecting machine assembly. Assembly can be achieved at the beam yard, offering high safety. The entire assembly process can be completed using the gantry crane, reducing the rental cost of truck cranes.

The utility model discloses a portal frame structure which comprises a cross beam and supporting legs, a reinforcing rib is arranged on the top face of the cross beam in the length direction, and an unloading groove with an upward opening in the vertical direction is formed in the top end of the reinforcing rib so that the section of the reinforcing rib in the width direction can be in an M shape. The reinforcing ribs are arranged on the top surface of the cross beam of the gantry crane in the length direction, and the unloading grooves with the upward openings in the vertical direction are formed in the top ends of the reinforcing ribs, so that the sections of the reinforcing ribs in the width direction are M-shaped, the rigidity of the cross beam can be improved, the risk of stress fracture is reduced, and the cross beam is better reinforced.

The utility model discloses an adjustable traveling track of hoisting equipment, which belongs to the technical field of gantry crane regulation and control and comprises a track cross beam and support columns arranged at two ends of the track cross beam. Sliding sleeves and stabilizing mechanisms are fixed to the two ends of the rail cross beam, the two sliding sleeves are slidably connected to the outer walls of the two supporting columns correspondingly, and lifting mechanisms for controlling the sliding sleeves to ascend and descend are arranged on the outer walls of the supporting columns. The lifting mechanism comprises a lead screw rotationally connected to the supporting column, a servo motor fixed to one end of the supporting column and transmitting towards the lead screw, a lead screw sleeve block connected to the outer wall of the lead screw in a threaded mode, and a supporting plate fixed to one end of the lead screw sleeve block. According to the utility model, the rail cross beam is controlled to move up and down through the lifting mechanism of the supporting column, and multi-gear position adjustment is carried out by utilizing the plurality of adjusting insertion holes of the supporting column, so that the lifting height requirements of goods with more sizes are met, and the use limitation is reduced.

The utility model discloses a hoisting machinery balance system walking beam device which can adjust the angle and the flatness of a walking beam, and the adjusting process is simple and convenient, so that the gradient and the flatness of a walking beam support are guaranteed. The device is characterized in that a plurality of adjusting screw rods are installed on the two sides of a walking beam support correspondingly, the bottoms of the adjusting screw rods are placed on a supporting base, tilt angle sensors are installed on the two side faces of the walking beam support correspondingly, a horizontal sensor is installed on the upper surface of the walking beam support, and the horizontal sensor is installed on the lower surface of the walking beam support. The tilt angle sensor and the horizontal sensor are both connected with a monitoring system, the adjusting rod pieces are installed on the adjusting screw rods, and the hydraulic adjusting piece is installed between the adjusting screw rods.

Crane bridge (1), comprising: a) two stop segments (2) each with an upper chord plate (3), a lower chord plate (4) and at least one spacer element (5) arranged between them, b) at least one main segment (6) between the two stop segments (2) with an upper chord plate (7), a lower chord plate (8) and at least one spacer element (9) arranged between them, c) Guide means (10) for an alignment of the upper chord plates (3, 7) and lower chord plates (4, 8) with each other, d) a separate connecting element (13) between each main segment (6) and to the two adjoining stop segments (2), e) at least one traction element (11) between the two stop segments (2) and f) one stop piece (12) for the at least one traction element (11) on each of the two stop segments (2), where g) the upper chord plates (3, 7) and the lower chord plates (4, 8) are arranged serially and in full alignment, and h) the at least one main segment (6) and the two stop segments (2) each have two standing plates (14) as spacer elements (5, 9), characterized by the fact that i) that at least one tension element (11) is arranged between the upper chord plates (3, 7) and the lower chord plates (4, 8) and is located closer to the lower chord plates (4, 8), j) the connecting elements (13) are sheet metal elements (22), k) each of the sheet metal elements (22) extends from the upper chord sheet (3, 7) to the lower chord sheet (4, 8) and rests against the vertical sheets (14), l) the sheet metal elements (22) comprise edge guide plates (23), as well as m) the guide plates (23) are located on the inner walls of the at least one main segment (6) and the two stop segments (2) as guide means (10).

The invention provides a rigid-flexible coupling crane main beam which comprises a rigid pressure-bearing unit, a flexible pressure-bearing unit, a main beam body and a flexible pressure-bearing unit, wherein the rigid pressure-bearing unit is a beam body with a T-shaped section; the flexible tension unit comprises high-strength steel wire ropes which are arranged in parallel in the length direction of the beam body; and the prestress combination mechanism is used for applying prestress to the steel wire rope and keeping the prestress to enable the steel wire rope to be in a tensioning state in a no-load state, so that the beam body and the steel wire rope are combined to form a rigid-flexible coupling structure with cooperative stress. The self-weight of the main beam is greatly reduced, so that the beam has the advantage of being light in weight, steel and steel wire ropes of the beam body with the T-shaped section work under the most suitable pressure and tension states through the innovative rigid-flexible separation design, the material performance is utilized to the maximum degree, and the beam has the extremely high material utilization rate.

The invention relates to a modular large-tonnage rubber-tyred beam carrying machine self-adaptive to multiple working conditions, and relates to the field of bridge construction equipment. According to the technical scheme, various hoisting tasks with obvious span, hoisting height and hoisting capacity differences can be quickly adapted through structure adjustment. Specifically, firstly, one machine has multiple purposes, the working condition from double-machine combined hoisting super tonnage to single-machine medium tonnage is covered by means of modular design, the equipment purchase quantity and the management cost are greatly reduced, and the utilization rate is remarkably improved; working condition conversion is efficient, the length of a main beam and the height of a supporting leg are adjusted by increasing or decreasing standard sections, a lifting tool is replaced through a rapid connector, most modification can be completed in a beam field, consumed time is short, and the influence on the construction progress is small; the structure is safe and reliable, the structure is optimized according to different working conditions, and it is ensured that the structural strength, rigidity and whole machine stability under all configurations all meet safety specifications; and 4, the economic benefit is prominent, special equipment is prevented from being purchased for different working conditions, and the one-time investment and long-term maintenance cost are greatly reduced.

This invention discloses a control method for trolley position following during beam translation, comprising the following steps: S1, the crane's PLC controller sends a translation command to the beam mechanism and sets a moving speed for the beam mechanism; the beam mechanism's frequency converter and beam motor operate, and the drum wire rope pulls the beam mechanism to begin telescopic translation; S2, when the beam mechanism begins telescopic translation, the PLC controller sends a reverse translation command to the trolley mechanism and sets a moving speed for the trolley mechanism; the trolley mechanism's frequency converter and trolley motor operate, and the drum wire rope pulls the trolley mechanism to perform translation. The trolley mechanism maintains the same moving speed as the beam mechanism, but in the opposite direction of translation, to ensure that the driver's cab remains at the designated stopping position throughout the beam translation process. This invention ensures that the driver's cab remains at the designated stopping position throughout the beam mechanism's movement, is convenient to use, and is simple and feasible.

The utility model discloses a wind turbine generator yaw drive carrying device which comprises a first supporting frame, a second supporting frame and a first hanging beam piece, the side end of the first supporting frame is fixedly connected with the second supporting frame, and the upper end of the first supporting frame and the upper end of the second supporting frame are fixedly connected with the first hanging beam piece. The side end of the third supporting frame is fixedly connected with a fourth supporting frame, and the third supporting frame and the fourth supporting frame are fixedly connected with a third hanging beam piece; the lower end of the first hanging beam piece and the lower end of the third hanging beam piece are fixedly connected with a second hanging beam piece through first gaskets and screws, the lower end of the second hanging beam piece is supported through a supporting base, pulleys are arranged on the first hanging beam piece and the third hanging beam piece in a sliding mode, and a first protection cover is arranged at the lower end of the pulley located on the first hanging beam piece in a hanging connection mode. And a second protective cover is hung at the lower end of the first hanging beam piece on the third hanging beam piece. The utility model relates to a yaw-driven carrying device for a wind turbine generator, which achieves the purpose of carrying through the arrangement of the structure.

The invention relates to the technical field of quay crane cranes, and discloses a novel quay crane which comprises a crane rack, two first I-shaped sliding rails are transversely arranged at the center of the inner wall of the crane rack, the front ends and the rear ends of the two first I-shaped sliding rails are fixedly connected with connecting structures, and the connecting structure close to the front portion is taken as an example. The connecting structure comprises a second I-shaped sliding rail, the second I-shaped sliding rail is fixedly connected to the front end faces of the two first I-shaped sliding rails, a third I-shaped sliding rail is arranged at the lower end of the second I-shaped sliding rail, and a frame is fixedly connected to the upper end face of the third I-shaped sliding rail. According to the conveying device, by arranging the connecting structure, the moving structure on the first I-shaped sliding rail on one side can be conveniently moved to the first I-shaped sliding rail on the other side, the moving structure on one first I-shaped sliding rail moves towards the front end, the other first I-shaped sliding rail moves towards the rear end, and a high-efficiency conveying scheme can be conveniently provided.

This invention discloses a shock absorption device for a bridge crane, relating to the field of bridge crane technology. It solves the technical problem of the lack of a shock absorption device between the main beam and the two moving end beams of a bridge crane, leading to easy damage to crane components due to impact during lifting. The device includes two hollow buffer beams located below the main beam and fixedly connected to the upper surface of the traveling beam near its end; and multiple sets of guide members located between the main beam and the buffer beams. Each set of guide members includes two guide posts and side push grooves on the opposing sides of the two guide posts. The top of the guide posts is fixedly connected to the bottom of the main beam, and the guide posts slide through the buffer beams. This invention facilitates multiple buffering of the impact force generated when a bridge crane lifts goods, resulting in good shock absorption between the main beam and the traveling beam, thus preventing damage to various crane components due to impact.

The embodiment of the invention provides a box body connection transition section, a transition joint, a box body structure and a quay crane, and relates to the field of quayside container crane stand columns. The problems that when a hexagonal box body and a quadrilateral box body are transited in a traditional connection mode, load transmission is discontinuous, stress concentration is large, and reliability is low are solved. The box body connection transition section comprises a quadrilateral base body frame and at least two transition plates, and the base body frame forms a quadrilateral connection end; the transition plates are connected to the side edges of the base body frame, and the base body frame and the at least two transition plates jointly define a hexagonal connecting end. The transition joint, the box body structure and the quay crane comprise the box body connection transition section. Force is smoothly redistributed and transmitted along the continuous transition plate and the base body frame panel, sudden steering and concentration at the connecting interface are avoided, the stress peak value is reduced, and the durability of the structure under alternating loads is greatly enhanced.

A joint arrangement and method for connecting main girder parts, which comprises a first plurality of finger elements arranged on a first main girder part, a second plurality of finger elements arranged on a second main girder part, each finger element, of the first plurality and the second plurality of finger elements comprises a top surface a bottom surface, a first end and a second end wherein the first plurality of finger elements and the second plurality of finger elements are arranged to interconnect with each other, and a first fastener arranged to rigidly lock the first plurality and the second plurality of finger elements together.

The utility model discloses a bridge crane trolley mechanism which comprises a main beam, guide rails are arranged on the main beam, wheels are connected to the inner walls of the guide rails in a rolling mode, rotating shafts are fixedly connected to the side surfaces of the wheels, a carriage is rotationally connected to the outer surfaces of the rotating shafts, and a supporting frame is fixedly connected to the interior of the carriage. The upper surface of the supporting frame is rotationally connected with a second winding drum and a third winding drum, the outer surfaces of the second winding drum and the third winding drum are movably connected with a hoisting steel cable, the lower end face of the hoisting steel cable is fixedly connected with a fixing plate, the upper surface of the fixing plate is fixedly connected with an auxiliary steel cable, and the upper end face of the auxiliary steel cable is movably connected with a first winding drum; a first fixing shaft is rotationally connected to the surface of one side of the winding drum. By means of the components, in the lifting process of the lifting steel cable, the auxiliary steel cable is tightened through the first winding drum, so that the auxiliary steel cable is kept straightened in the using process, and stability during object lifting is achieved.

The application provides a construction adjustment method for a portal girder when the girder is too long. By adjusting the position of the web plate-to-rib of the girder bell mouth and the rigid leg, the girder can still maintain the perpendicularity of the leg without adjusting the span of the trolley through the dislocation of the web plate-to-rib. The small dislocation can also meet the requirements of the web plate-to-rib of the leg, the correction amount is small, the size of the girder does not need to be modified again, the construction requirements are met while the investment cost is saved, and the overall structure of the portal is stable.