106results about How to "Reduce lifting weight" patented technology

The invention provides a comb tooth exchange type stereoscopic garage which comprises frame assemblies, lifting channels and vertical lifting devices. The vertical lifting devices are positioned in the lifting channels. The comb tooth exchange type stereoscopic garage has the advantages that when vehicles are accessed, only left lifting frames and right lifting frames in the vertical lifting devices need to ascend and descend without shifting vehicle carrying plates, so that the vehicles can ascend and descend, hoisting weights of hoisting mechanisms can be effectively reduced, and the hoisting stability and the hoisting safety can be improved; when running into the vehicle carrying plates, the vehicles are only in contact with the vehicle carrying plates, and the vehicle carrying plates are directly fixed onto the ground by the aid of support frameworks and are good in stability, so that the stability of the integral garage cannot be affected by movement of the vehicles; the left lifting frames, the right lifting frames, traverse tables and the vehicle carrying plates transfer the vehicles by the aid of comb tooth exchange structures, and accordingly the structure of the integral garage can be effectively simplified; the vehicles can enter the comb tooth exchange type stereoscopic garage and exit from the comb tooth exchange type stereoscopic garage conveniently and quickly, and accordingly the comb tooth exchange type stereoscopic garage is high in operation efficiency.

The invention discloses a modular cast-in-place construction method for a large-diameter root foundation, which is characterized by comprises the following steps of: firstly, constructing a pile formation hole at the position of a set root foundation by a drilling machine; sectionally manufacturing each section of FRP (Fiber Reinforce Plastic) combination structure, sequentially placing each section of FRP combination structure into the pile formation hole, welding adjacent sections of FRP combination structures by reinforcing bars or connecting adjacent sections of FRP combination structures by direct screw thread sleeves, winding FRP on the peripheries of the junctions to form a hollow pile cylinder, forming a pile cylinder concrete inner wall in the hollow pile cylinder, and pouring pile cylinder bottom plate concrete to carry out bottom sealing so as to form a ring-shaped cylinder with the sealed bottom; ejecting a root key into each root key steel bushing; and finally pouring lining concrete on the periphery of the pile cylinder concrete inner wall and pouring a top cover after the strength of the lining concrete is met so as to form a foundation platform. Due to the adoption of the modular cast-in-place construction method for the large-diameter root foundation, the construction can be effectively and conveniently carried out and the construction efficiency is improved.

The invention relates to a hoisting process for a rotating wheel of a vertical shaft axial flow hydraulic turbine, which comprises the following steps of: 1, arranging a small convex plate at the appropriate position on a main shaft; 2, putting an installed rotating wheel on a platform in an installation room, allowing blades to be in the complete shut-down position, and adjusting the horizontal of an upper flange surface of the rotating wheel by 0.02mm/m; 3, hoisting a combining piece of the main shaft and an operating oil tube, connecting the operating oil tube with an operating oil tube of the rotating wheel, connecting the main shaft with the rotating wheel, and connecting the rotating wheel with a bolt and pretightening; 4, sleeving the combination body into the main shaft after combining a support cover and a flow guiding cone or combining the support cover and the flow guiding cone after sleeving the support cover and the flow guiding cone into the main shaft respectively, and putting the combination body on an upper flange or a rotating wheel cover of a rotating wheel body; 5, arranging a partitioned bearing on the support cover or the flow guiding cone, and arranging a divided clamping ring on the top of the bearing; 6, adjusting the height of combination body of the support cover and the flow guiding cone by using a hoist and conducting the safe and protective action when the combination body is hoisted in a turbine pit integrally; 7, reserving an axial gap between the convex plate on the main shaft in the installation room and the clamping ring, wherein the gap is 2 to 5 millimeters greater than the sum of a reverse machine lift value and a bayonet value of the main shaft, and the value is 2 to 5 millimeters greater than the bayonet value of the main shaft, so that the coupling is convenient; and 8, arranging a hanger, and hoisting the combination body in the turbine pit to be put in place.

A new single post structure and an installation method thereof are disclosed, the structure is composed by a suction pile + driven pile 8, a central vertical post 9 and a small platform 10, characterized in that the structure adopts a combination basic of suction type + driven type, the small platform 10 forms an integrative structure with the central vertical post 9 by welding. A central guide cylinder 3 is located in centre of the cylinder body 1, upper end is higher than a top cover 2 with a bell-mouthed shape, the lower end is horizontal to bottom end of the cylinder body 1. A mud-cleaning jetting ring 7 is provided in middle of a lower rib plate 5 of the central guide cylinder 3 and a grouting jetting ring is provided in the middle of the central guide cylinder 3. The top cover 2 is provided with a pump hole 12 for installing an underwater pump 13 or a pneumatic pump. The invention has the advantages that the new single post structure varies P-Y curve of surface layer soil, which is in favour of reduction of displacement under horizontal force, and meanwhile enhances structural intensity of the post. During the construction, the combination basic of the new single post structure lessens hoisting weight, in the meantime, the suction pile assists and positions the driven pile.

The invention discloses an underwater pouring root type foundation with a retaining wall and a construction method thereof. The underwater pouring root type foundation with the retaining wall is characterized in that a retaining wall layer formed by pouring underwater quick set materials is arranged between a cast-in-place reinforcing concrete tubular column and the pore-forming inner wall, the side wall of the concrete tubular column is provided with root keys in the radial direction of the tubular column, the bottom of the concrete tubular column is provided with a concrete back cover, and a top cover is arranged on the top of the concrete tubular column in a pouring mode so that the underwater pouring root type foundation with the retaining wall can be formed. The underwater pouring root type foundation can be effectively applied to civil engineering, bridge buildings and water conservancy project structures, and the construction efficiency is improved.

The invention discloses a self-moving type recycled block body discharging, mixing and vibrating device which comprises a vibrating supporting frame, rails, a walking trolley, a plurality of vibrators, a walking driver system, a hopper, a plurality of vibrating guiding devices and an articulated chute, wherein the rails are arranged at the top of the vibrating supporting frame in parallel, the walking trolley slides along the rails in a reciprocating mode, the vibrators are transversely arranged on the walking trolley at equal intervals, the hopper is arranged on the walking driver system, thevibrating guiding devices extend into the hopper from an opening above the hopper, and the articulated chute is connected with a discharge opening of the hopper. According to the self-moving type recycled block body discharging, mixing and vibrating device disclosed by the invention, the hopper is sequentially filled with cast-in-place concrete and the recycled block body in a material storage yard, the plurality of the vibrators are utilized to fully vibrate and mix the cast-in-place concrete and the recycled block body, then the walking driver system can self move to a construction site, and the hopper is lifted to an operation point by lifting equipment to discharge materials. The device has the advantages of good mixing effect, convenience in loading and unloading, self movement, highdischarging efficiency and more important effect on propelling recycled block body concrete to be applied to engineering on a large scale.

The invention discloses a total precast lower structure of a bridge and a construction method. The structure is mainly composed of single whole precast lower components, a precast base plate, a prestressed steel strand and aseismic ribbed bars; single precast components which are precast in a factory overall are composed of cover beams, pier columns and enlarged foundations; the cover beams of the whole single precast components are reserved with corrugated pipes, and the prestressed steel strand is connected with the components in series through the reserved corrugated pipes in site assembly; concrete cast-in-site segments are arranged between the enlarged foundations of the single precast components, and the enlarged foundations of the single precast components are integrally connected in site construction; the whole precast base plate is arranged on the bottom of a whole foundation; when main beams to be precast is reserved on the tops of the cover beams of the precast components, the tops of the cover beams extend into the aseismic ribbed bars of main beam reserved holes. According to the total precast lower structure of the bridge and the construction method, the mode is simple, and the structure is suitable for a high intensity seismic zone.

The invention discloses a pipeline installing method. The pipeline installing method comprises the steps that a fastening belt is adopted for achieving temporary fastening of a first pipe base and a first pipe joint, and a first pipe base and pipe joint unit is formed; the first pipe base and pipe joint unit is hoisted into a base groove; the pipe inner bottom elevation of the first pipe joint inthe base groove is measured; gaps on the two sides between the first pipe joint and the first pipe base are closed; the preparing work for second pipe base and pipe joint unit installation is conducted; a second inserting port of a second pipe joint is inserted in a first port of the first pipe joint; the bell mouth end elevation of the position of a second bell mouth of the second pipe joint in the base groove is measured; a gap on the second bell mouth side between the second pipe joint and the second pipe base is closed; the steps from the fifth step to the eighth step are repeatedly conducted, and subsequent pipe base and pipe joint unit installation is finished; and cement mortar is poured into the positions between the pipe joints and the pipe bases in the same pipe base and pipe joint units and between the pipe bases between the adjacent pipe base and pipe joint units. According to the pipeline installing method, the hoisting frequency can be effectively reduced, and the advantage that construction is safe and reliable is achieved.

The invention discloses a large-diameter pile base reinforcing steel bar in-hole layering and bundling construction method. The large-diameter pile base reinforcing steel bar in-hole layering and bundling construction method comprises the following steps: layering a reinforcement cage, limiting and manufacturing a reinforcement reinforcing cage and an operating frame, fixing and hoisting the operating frame and the reinforcement reinforcing cage into pile holes. The large-diameter pile base reinforcing steel bar in-hole layering and bundling construction method positions the reinforcement cage, and provides an operation platform for a constructor, so that hoisting weight is effectively controlled; and meanwhile, time of arranging the operating frame in the pile holes is reduced, and the operating frame is conveniently arranged. The construction method breaks through an existing common reinforcement cage construction way; and the reinforcement cage is bundled in the pile holes, so thatthe defects that the large-diameter reinforcement construction difficulty is great, hoisting is difficult, hoisting quality is not easily controlled, and potential safety hazards are easily generatedin the prior art are solved.

The invention discloses an installation method for a steel cylinder of a high-pressure aeration reactor of a deep well, comprising the following steps of: processing and manufacturing an inner baffle; determining the installation position of the inner baffle: the steel cylinder consists of a plurality of groups of steel cylinder sections from bottom to top, the inner baffle is arranged on the steel cylinder section with the number of M and the length ratio of the upper part and the lower part of the inner baffle is 2.5 to 4.0 : 6.0 to 7.5; installing a plurality of groups of steel cylinder sections of the lower part of the inner baffle in sequence from bottom to top; installing the inner baffle; sinking and temporarily fixing the steel cylinder section with the number of M+1; sinking and installing the steel cylinder section with the number of M+2 after the pressure in the cylinder is transmitted up uniformly and installing a plurality of groups of steel cylinder sections of the upper part in sequence according to the installation method thereof; pouring concrete or mortar to the outside of the steel cylinder; releasing the pressure and carrying out cutting recovery of the inner baffle. The invention can solve the lifting problem of the steel cylinder and the instability and distortion problem of the steel cylinder under the effect of the side pressure of the slurry outside of the cylinder, can ensure that the steel cylinder sinks to the designed elevation safely and smoothly and can save the construction cost.

The invention discloses a prefabricated T-beam and a construction method. The T-beam comprises a T-beam unit, wherein the T-beam unit comprises a beam rib and a wing plate; the wing plate comprises atop wing plate and two underwing plates; the two underwing plates are arranged on the two sides of the top end of the beam rib respectively and prefabricated into a whole together with the beam rib; and the top wing plate is laid and poured on the top surfaces of the underwing plate and the beam rib. The prefabricated T-beam has the advantages of quick and convenient construction and hoisting, lowhoisting transportation requirements, good integrity, large span variation range and the like; and the construction method of the prefabricated T-beam has the advantages of simple steps, conveniencein operation, easiness in construction and the like.

The invention relates to a printer nozzle cleaning and flying ink suction device. The printer nozzle cleaning and flying ink suction device comprises a nozzle cleaning cross beam assembly, an ink receiving assembly, an air suction groove assembly, an air suction switching valve assembly and a centrifugal fan. The ink receiving assembly comprises a plurality of ink receiving discs. The ink receiving discs are fixed to an ink receiving disc collecting pipe. The ink receiving disc assembly is contained in a machine head channel, the space of a whole machine is greatly utilized, and the length ofthe whole machine is reduced. The air suction groove assembly and the ink receiving disc assembly are fixed in a whole set, the lifting weight of a machine head is reduced, and the load of a lifting motor is reduced. The printer nozzle cleaning and flying ink suction device further comprises a gas-liquid separation box, all ink is collected into the gas-liquid separation box to be treated, then treated gas is exhausted to the atmosphere through the centrifugal fan, and therefore pollution to the environment is reduced.

The invention discloses a dual-purpose large-span stiff beam construction structure and a construction method thereof, and belongs to the technical field of stiff beam construction. The dual-purpose large-span stiff beam construction structure comprises a support system, wherein the support system comprises a plurality of sets of first support assemblies which are arranged at equal intervals and asecond support assembly, each first support assembly comprises a set of first tool type steel pipes which are arranged at equal intervals, the second support assembly comprises a set of second tool type steel pipes which are arranged at equal intervals, and the adjacent first tool type steel pipes and second tool type steel pipes, the two adjacent first tool type steel pipes and the two adjacentsecond tool type steel pipes are connected through a plurality of cross rods. According to the dual-purpose large-span stiff beam construction structure, sectional steel beams are hoisted in sections,so that the hoisting risk is reduced, the structure and components are protected conveniently, and the safety is higher; tool type steel pipe supports are erected, and the purpose that one support has two purposes is achieved through an adjustable jacking; andthe construction method is simple, easy to operate and good in integrity, shortens the construction period and reduces the cost.

The invention discloses a prefabricated UHPC capping beam structure with a pi-shaped cross section and a prefabricated method thereof. The capping beam comprises a top plate and two web plates, wherein a part of the web plates covering between two upright post piers is a thickened section, and parts of the web plates outside two sides of the two upright post piers are a gradual change section andan equal thickness section; the lengths of the gradual change section and the equal thickness section on the web plates are the same, the equal thickness section is close to an end of the web plates,the gradual change section is between the thickened section and the equal thickness section; the thickness of the gradual change section is linearly gradual, and the thicknesses of both ends are matched with the thickened section and the equal thickness section respectively; and a plurality of top plate prestressed steel bars and a plurality of web plate prestressed steel bars are respectively arranged inside the top plate and inside the two webs plates. During a prefabrication, vibrating and compacting are carried out by an attached vibrator, a prefabrication element is cured by adopting steam, and finally, the top plate prestressed steel bars and the web plate prestressed steel bars are stretched in a symmetrical stretching mode at two ends. The prefabricated UHPC capping beam structurewith the pi-shaped cross section and the prefabricated method thereof further reduce an overall weight of the capping beam and are expected to reduce weight by more than 55% relative to a solid capping beam.