39results about How to "Improve hoisting accuracy" patented technology

The invention provides a method for planning a path of a lift object for a crane. The method comprises the following steps of: projecting an obstacle on a working plane of the crane; performing polar radius-oriented processing on the projection and transforming a coordinate expression form of the obstacle into a polar coordinate expression form; analyzing the obstacle which is positioned on the path of the lift object to ensure that the lift object can pass through the path; and determining a lifting path according to a lifting principle. By the method for planning the path of the lift object for the crane, distances among obstacles can be calculated quickly and efficiently, the planned lifting path can be searched precisely, and the lifting safety and reliability of the lift object can be improved.

The invention provides a horizontal adjusting sling for a spacecraft, which comprises a hoisting ring component, an XY workbench, a hoisting beam and straps, wherein the XY workbench is arranged on the hoisting beam; the top center of the XY workbench is hinged with the hoisting ring component through a universal joint; four straps are arranged below the hoisting beam; the XY workbench comprises an X workbench and a Y workbench; the X workbench slides on the Y workbench through a slide rail along the X direction; the Y workbench slides on the hoisting beam through a slide rail in the Y direction; and the hoisting ring component comprises a hoisting ring connected with a hook of a crane, a middle bearing structure and a two-dimensional inclination sensor b for measuring the angle of inclination of the hook relative to the crane. Compared with the prior art, the horizontal adjusting sling for hoisting the spacecraft solves the problem that automatic horizontal adjustment cannot be implemented in a two-dimensional plane, the digitization and automation in the measuring and adjusting process are achieved, the hoisting accuracy and hoisting efficiency are improved and the labor intensity of operators is reduced.

The invention discloses an adjusting method for level hanging adjustment for a hanging tool based on hanging point adjustment. The adjusting method mainly comprises the following steps of hanging adjustment processes, such as level adjustment of the hanging tool per se, centering of a hanging hook (or a hanging ring of the hanging tool) with a crown block, levelness measurement and position adjustment, wherein a measurement value of an obliquity sensor on a hanging ring assembly is used as a reference for judging the centering of the crown block with the hanging hook; a measurement value of an obliquity sensor on a hanging beam is used as a criterion for judging the hanging levelness; position adjustment of the hanging points of the hanging tool is realized through the movement of a worktable XY in a plane; and on the premise of ensuring the centering between the crown block and the hanging hook, the hanging points of the hanging tool are adjusted to proper positions, so that two-dimensional levelness adjustment of the spacecraft in the hanging process is realized. According to the adjusting method for high-precision level hanging, disclosed by the invention, the levelness is less than 4.1 mm/m, and the level adjustment process can be completed within 180 s, so that digitalization and automation of measurement and adjustment processes are realized, the hanging precision and hanging efficiency are improved, the labor intensity of operating personnel is lowered, and the application value is remarkable.

The present invention discloses a heavy manipulator, and belongs to the field of mechanical lifting. The purpose of the present invention is mainly to solve problems of time consuming, labor consuming, low efficiency, and low accuracy during hoisting of large machinery equipment. The heavy manipulator comprises a lifting beam, a first main frame, a first set of manipulators, a second main frame, and a second set of manipulators. The top end of the main frame is provided with a slide block. The top end of the manipulator is provided with a hydraulic cylinder connected with a pressure sensing alarm device. Both ends of the hydraulic cylinder respectively control a left clamp arm and a right clamp arm of the manipulator. A hydraulic station is arranged on a hydraulic station fixation assembly arranged between the two sets of the manipulators. During use of the heavy manipulator of the present invention, the left clamp foot and the right clamp foot move on the machinery equipment, the power is turned on, and the pressure sensing alarm device receives the signal and sends an audible alarm, such that the lifting work can be completed, wherein the signal is that the left clamp foot and the right clamp foot are tightly pressed and the lifting equipment is required. The heavy manipulator of the present invention has characteristics of simple structure, time saving, labor saving, high efficiency, and high lifting precision.

The invention provides a hoisting rigging and a hoisting method thereof. On the basis of the prior art, a hydraulic pull pump is additionally arranged; the main effect of the hydraulic pull pump is used for adjusting the length of a steel wire rope by virtue of self retraction, so that a three-dimensional space state of a member meets the hoisting requirements. According to the hoisting rigging and the hoisting method thereof, the single set of the rigging is used so as to realize the adjustment of the three-dimensional space state of the member; the adjusting precision is high and the whole hoisting precision of the member is improved.

The invention discloses a gesture monitoring and positioning device in a large workpiece lifting process. A slave machine A with a GPS module and a gesture detecting module is mounted on a plane of alarge workpiece to be lifted; a slave machine B with a GPS receiving module and a gesture detector is mounted on a mounting base; a main machine module with a display screen is mounted on a lifting console; and a base station is mounted in an open high place without a shielding object in a construction environment. A main machine is respectively in wireless communication with the slave machine A and the slave machine B. The slave machine A is in wireless communication with the base station. The slave machine A and the slave machine B calculate an absolute position and gesture information of lifted workpieces; meanwhile, the slave machine A improves the positioning precision through the base station; and the slave machine A and the slave machine B send information to the main machine through a wireless communication module. The main machine displays the workpiece speed, the acceleration, the distance and the workpiece lifting schematic diaphragm on the screen. The system can greatly improve the workpiece installation positioning and gesture detecting precision through unique layout and solution algorithm to effectively improve the large workpiece lifting installation efficiency.

The invention relates to a high-precision positioning guide device and a use method thereof. The device comprises an outer side device and an inner side device which are combined, wherein the inner side device comprises first channel steel; the bottom of the first channel steel is provided with a fixing bolt hole; the side face of the first channel steel is provided with a Y-shaped guide groove. The problem of constraint on engineering progress and construction quality and safety can be solved, and meanwhile the problems such as poor environmental protection performance, complexness in disassembly and assembly, adverseness to recovery and recycling, poor stiffness performance, looseness in fixation, poor mechanical property and poor safety and reliability are solved; thus members such as prefabricated walls are quickly arranged in place and corrected, and the utilization rate and the hanging precision of a tower crane are improved.

The invention provides a quick assembling coupling for connecting box-beam steel structure modules, which is characterized by comprising a plurality of segments or pieces of box-beam steel structure modules for forming a box-beam component, wherein, quick assembling couplings (3) are symmetrically arranged at abutting ends of every two adjacent box-beam steel structure modules. Each quick assembling coupling comprises up and down enclosed flange connection boxes (12, 13), a plurality of shear-resistant positioning pin holes (10) and a plurality of stud hole tubes (9), wherein, the up and down enclosed flange connection boxes (12, 13) are arranged at the abutting ends of the box-beam steel structure modules; the shear-resistant positioning pin holes (10) are used for penetrating shear-resistant positioning pins (15); and the stud hole tubes (9) are arranged side by side in each enclosed flange connection box and used for penetrating double end studs (14).

The invention discloses a rotary lifting device, which belongs to the technical field of lifting opening and closing equipment, comprises a lifting appliance, and is characterized in that the lifting appliance comprises an upper lifting frame, a pulley shaft, a movable pulley block, a pin penetrating piece, a lifting head, a lower lifting frame, a lifting hook cross beam, a lifting hook nut, a rotary driving piece and a grabbing beam, the lifting head is fixed on the upper lifting frame through a pin penetrating piece, the lifting hook cross beam penetrates through the lifting hook nut and is arranged on the lower lifting frame, the lifting hook nut is connected with the lifting head, the rotary bearing is arranged between the lifting hook cross beam and the lifting hook nut, the rotary driving piece is arranged on the lower lifting frame, and the grabbing beam is connected with the lower lifting frame. The lifting appliance can synchronously and reversely rotate to ensure that the axis of a gate is always parallel to the axis of a gate groove, and the lifting appliance and the gate are prevented from shaking in the rotation process, so that the gate can be automatically and accurately positioned into the groove, the lifting precision and the lifting efficiency are improved, and the whole rotation lifting appliance is convenient to mount.

The invention belongs to the technical field of logistics equipment, and particularly relates to a lifting device for a logistics supply chain. The lifting device comprises a lifting rod, a connecting frame, a motor, an assembling plate and a plurality of lifting and clamping units arranged in a circular array along the bottom edge of the assembling plate, the connecting frame is connected to the bottom of the lifting rod, the lifting rod is connected with a logistics supply chain transfer mechanism, the motor is fixedly mounted on the connecting frame, the assembling plate is transversely connected to the bottom of an output shaft of the motor, and a lifting and clamping cavity is formed among the multiple lifting and clamping units. A traditional combined lifting structure of a hook and a lifting rope is abandoned, the multiple lifting and clamping units are adopted for clamping an object, then the lifting rod and the transfer mechanism are matched to complete lifting operation, shaking of the object in the lifting process is effectively avoided, the stability and safety in the lifting process are guaranteed, the lifting precision is improved, lifting operation can be carried out in cooperation with a conveyor belt conveying mode, and the lifting efficiency is greatly improved.

The invention belongs to the technical field of circular coolers, and discloses a hoisting clamp and a hoisting method for a wheel of a circular cooler. The hoisting clamp for the wheel of the circular cooler is used for hoisting the wheel of the circular cooler. According to the hoisting method for the wheel of the circular cooler, the hoisting clamp for the wheel of the circular cooler is used for hoisting the wheel of the circular cooler, and the hoisting clamp and the hoisting method are used for hoisting the wheel, so that the wheel can be conveniently hoisted to a wheel axle below a square beam of the circular cooler, and the hoisting operation is not blocked by the square beam any more; and meanwhile, the wheel can be conveniently aligned to the wheel axle, the hoisting precision is improved, and the installation difficulty of the wheel is reduced.

The invention discloses a staggered tensioning anchoring structure for assembling building prefabricated steel reinforced concrete middle column beam joint prestressed tendons. The structure comprisesa prefabricated column, and further comprises a preserved duct preserved inside the prefabricated column, a crossed steel column integrally formed with the prefabricated column, a prefabricated column stacking layer arranged at the upper portion of the prefabricated column, a stacking beam arranged at one end of the prefabricated column, a top steel bar exposed out of the upper portion of the stacking beam, an outer stretching steel bar stretching out of the side of the prefabricated column, a plurality of preserved through holes formed in the crossed steel column, prestressed tendons penetrating through the preserved through holes, and a prestressed tendon anchoring device fixed to the crossed steel column. The prestressed tendons are fixed to the crossed steel column through the prestressed tendon anchoring device. The structure ensures the integrated stress requirement of the beam column joint, and the joint is good in hogging moment resisting effect.

The invention discloses a duplex stainless steel chemical tanker deck cabin hoisting precision control method which comprises the following steps: measuring the three-dimensional size of a bolt hole in a deck cabin segmented connecting plate by using a total station, and adjusting the mounting position of a deck cabin base according to the three-dimensional size of the bolt hole in the deck cabin segmented connecting plate. The positions of the bolt holes in the deck cabin base connecting plate and the positions of the bolt holes in the deck cabin subsection connecting plate can coincide during installation, and after the position of the deck cabin base is adjusted and the deck cabin base is installed, the deck cabin is installed on the deck cabin base. The deck cabin hoisting control method is easy to operate, the deck cabin is accurately installed in place in the hoisting process, the deck cabin hoisting precision and working efficiency are improved, and the hoisting time is shortened.