39results about How to "Reliable hoisting" patented technology

The invention discloses a battery box hoisting device, which comprises two longitudinal beams (2) parallel to each other and longitudinally spaced apart, and the tops of the two longitudinal beams (2) are provided with two mutually parallel transversely spaced transverse beams (1); the two beams (1) are provided with two lifting brackets (3); the front and rear ends of each longitudinal beam (2) are distributed with a sliding ring (4), each of the The lower part of the sliding ring (4) is hinged with a hook (5); the four hooks (5) correspond to the four lifting lugs (12) installed on the front and rear side walls of the battery box (10) to be hoisted connect. The invention can ensure the stable and reliable hoisting of the battery box, so that the battery box will not shake back and forth, left and right during the hoisting process, and realize accurate control of the hoisting operation of the battery box, which is conducive to wide popularization and application, and can form an industrial The large-scale production has great practical significance.

The invention discloses a method for overall construction and hoisting of an offshore platform and a special crane thereof. The integral platform lower part and platform upper module are respectively built on the ground, and the lower part of the platform is first moved to a designated position in an offshore dock, and then the upper module of the platform is adopted The special crane is integrally hoisted to the lower part of the platform for welding. The special crane has four columns and is fixed to the ground. The two opposite columns are at the same height. The ends are respectively arranged on two opposite columns of the same height. The cross-section of the cross-beam is box-shaped and adopts a variable-section welding structure. A set of lifting mechanisms are provided on both sides of each cross-beam. The platform upper module is constructed on top of the platform, the upper module of the platform is integrated, the upper module is hoisted at one time, the work efficiency is high, the risk is small, and the platform quality is high.

The invention relates to a structure and a method for integrally a breaking pile head of a pile foundation. The structure comprises the pile foundation, and main ribs of a reinforcement cage and sounding pipes, which are positioned in the pile foundation; main rib sleeves sleeve sections, higher than the top surface of a design pipe body, of the main ribs of the reinforcement cage; a gap is formed between the outer diameter of each main rib and the inner diameter of the corresponding main rib sleeve; a sounding sleeve is arranged on each sounding pipe in a sleeving manner; a separating pipe is arranged at the position of a pile head cutting line by encircling the main ribs of the reinforcement cage; the separating pipe comprises a flexible outer pipe and inner ribs inserted in an inner hole of the flexible outer pipe; after the pile foundation is cast, the inner ribs are pulled out of the separating pipe, separating holes are forming by drilling, separating wedges are inserted into the separating holes, and the pile foundation is knocked to enable the pile head and the top surface of the design pipe body to be separated. The structure and the method have the beneficial effects that the positions of the sounding pipes and the main ribs of the reinforcement cage in the pile foundation are not required to be searched any more, the main ribs are prevented from being damaged in the breaking construction; the pile head after breaking is flat in structure.

The invention discloses a spreader having an adjustable balanced beam, comprising a beam; a lower end of the beam is provided with a plurality of positioning troughs; the beam is connected with a balancing seat which is provided with a rolling mechanism in contact with the beam and a positioning shaft matching with the positioning troughs respectively. The balancing seat consist of a front and a back board which are arranged at the front and back ends of the beam; the positioning shaft passes through the front and back boards of the balancing seat; one end of the positioning shaft is providedwith a handle, and the other end is provided with a fixed pin; the middle part of the positioning shaft is provided with a flute; the front board of the balancing seat is provided with a left and a right handle stop block. The rolling mechanism comprises a connecting shaft which connects the front and back boards of the balancing seat and a roller equipped on the connecting shaft. As the beam ofthe spreader provided by the invention is provided with the balancing seat which can move along the beam, heavy objects can be lifted easily, rapidly, safely and reliably by adjusting the position relationship between the balancing seat and the beam according to the gravity offset of the lifted heavy object.

The invention relates to the field of hoisting and lifting devices for continuously lifting loads, in particular to a bolt construction equipment integrating drilling and installation and a method for using the same. A bolt construction equipment integrating drilling and installation, comprising a mobile drilling device (1), characterized in that it also includes a hoisting device (2), and the mobile drilling device (1) includes a car body (11), an engine ( 12), control room (13), wheels (14), bracket (15), hydraulic support rod (16), drag chain (17), drill bit (18) and hydraulic jacking cylinder (19); hoisting device (2) Comprising hoist (21), truss (22), fixed pulley (23) and stay cable (24). A method for using bolt construction equipment integrating drilling and installation is characterized in that: a. Parking; b. Drilling; c. Vertical bar. The invention has the advantages of simple structure, convenient use, reliable hoisting and cost saving.

The invention provides an adjustable offshore large-scale wind power blade hanger and a hoisting method thereof, and relates to a blade hoisting tool and a hoisting method of a large-scale offshore wind power generating set. The hoisting method of the present invention adopts an adjustable offshore large-scale wind power blade sling, which includes a platform, a blade root end clamp, a blade tip clamp, a counterweight, and a swing arm hinged on the upper surface of the platform, and uses the positioning hydraulic cylinder of the sling A pair of lower chucks 1 is used for horizontal positioning control, and positioning hydraulic cylinder 2 is used for horizontal positioning control of lower chuck 2. Clamping hydraulic cylinders 1 and 2 can be used to control the falling of upper chucks 1 and 2 respectively. Adjust the hydraulic cylinder It can control the plumb angle of the blade before it is installed with the impeller, which can meet the adjustment requirements of the blade installation angle. During the whole hoisting process, except for the rubber block 1 and the rubber block 2, other parts of the spreader are not in contact with the blade, and the clamping force can also be determined by The first and second clamping hydraulic cylinders are controlled without damaging the surface of the blade, and the large wind power blades on the sea are reliably hoisted.

The invention provides a special crane for transporting a fan blade. The special crane comprises a main structure, a cart system, a hoisting system, a hanger transverse movement system, a power station and an operation platform, wherein the main structure is in a box type beam structure; the cart system comprises an operation mechanism and a rotary mechanism and is a whole machine walking and steering system; the hoisting system is a system of hoisting a lifting hook group by a winch through a steel wire rope and a pulley wheel; the hanger transverse movement system is a system of moving a hanger trolley by a winch through a steel wire rope and a pulley wheel; the power station comprises a diesel generator and a hydraulic pump station; the operation platform is provided with a command switch for the movement operation of each mechanism and the command switch is used for controlling working states of a hoisting winch, a transverse movement winch, a hydraulic motor and a hydraulic rotary speed reducer. A hoisting method is used for transporting the fan blade by two special cranes to carry out combined operation and hoisting. The special crane for transporting the fan blade has the beneficial effects that cross hanging, in-situ any angle steering, frontward movement, and multilayered and multi-array stacking can be realized; the special crane is flexible to move, high in maneuverability and high in efficiency; the special crane is compact in structure, light in self weight, good in ground adaptability, and safe and reliable to hoist.

The invention discloses a large-tonnage platform crane, which is composed of a column, an operating room, a beam, a hoist, a pulley block, a steel wire rope, a hook and an electrical control system. The two columns are at the same height, and the height of the two columns near the dock door is higher than the height of the two columns away from the dock door. The two ends of the beam are respectively set on the two opposite columns of the same height. The cross-section of the beam is box-shaped and adopts a variable-section welding structure. There is a set of lifting mechanisms on both sides of each beam. The present invention has the advantages of large lifting tonnage, large span, high lift, many lifting points, stable lifting and translation, adopting a beam translation structure, and can adapt to the requirements of various lifting points. features.

The invention discloses a lifting type portable lifesaving scaling ladder. The scaling ladder comprises a plurality of vertical supporting bars and horizontal suspenders, wherein the tops of the vertical supporting bars are fixedly connected with the horizontal suspenders by virtue of connecting strips, a plurality of climbing rod pieces are arranged between every two adjacent vertical supporting bars, the every two adjacent vertical supporting bars are fixedly connected by virtue of the climbing rod pieces, lifting supports are arranged on the horizontal suspenders, and the horizontal suspenders are fixedly connected with the bottoms of the lifting supports. By virtue of coordination of the lifting supports and the horizontal suspenders, reliable lifting is realized; by virtue of coordination of a clamping region on a connecting iron chain, detachable fastening connection and fixation between the vertical supporting bars is realized, the vertical supporting bars are prevented from slipping relative to the ground, and the lifting type portable lifesaving scaling ladder has the advantages of simple structure, good reliability and using convenience.

The invention discloses a construction method for dismantling an arch bridge with an upper span existing line, comprising the steps of: 1. Erection of a protective scaffold; 2. Static crushing and demolition of the blasting demolition structure on the arch; 3. Manual demolition of the blasting protective layer; 4. The demolished arch ring cutting; 5. hoisting of the arch ring to be hoisted; 6. demolition of the structure under the arch. The method of the invention is simple, reasonable in design, convenient in construction and good in use effect. While the protective scaffolds fixed on the front and rear sides of the demolished arch bridge are used for effective protection, the demolished arch bridge is repaired by a combination of static crushing and manual chiseling. The structure on the arch is removed to ensure that the static crushing process will not damage the plain concrete arch ring and will not interfere with the existing railway line crossed; after the arch ring is exposed, use a wire saw to cut and decompose the demolished arch ring Afterwards, lifting and dismantling is carried out, and then the structures under the arch on the left and right sides are quickly dismantled, which can effectively shorten the construction period, speed up the efficiency of arch bridge demolition, and the dismantling process is safe and reliable.