353 results about "Sheet steel" patented technology

The invention relates to an ultrahigh-strength low-temperature maritime work wide thin steel plate with good cold working performance and a manufacturing method of the ultrahigh-strength low-temperature maritime work wide thin steel plate. The steel plate comprises the following chemical components in percentage by weight: 0.04% to 0.08% of C, 0.1% to 0.4% of Si, 1.0% to 1.6% of Mn, 5.0% to 8.0% of Ni, 0.4% to 0.7% of Cr, 0.8% to 1.2% of Mo, 1.0% to 1.5% of Cu, 0.2% to 0.3% of V, 0.025% to 0.045% of Ti, 0.025% to 0.040% of Zr, 0.03% to 0.06% of Als, 0.002% to 0.005% of B, less than or equal to 0.005% of P, less than or equal to 0.001% of S and the balance of Fe and inevitable impurities. A low-carbon component design is adopted, elements such as V and Ti are added, and elements such as Ni, Cr, Mo, B and Zr are compositely added; a high-cleanliness smelting control technology, an electroslag remelting technology and a composite ply rolling technology are adopted, a two-stage rolling process, a transverse-longitudinal rolling process and a heat treatment process of quenching, two-phase region quenching and critical temperature tempering are matched, and the finally obtained wide and thin steel plate has excellent comprehensive mechanical properties.

An air hose hanging device for hanging a paint gun air hose to a sheet steel wall of a paint room includes a wall mount unit and a hose clamp collar. The wall mount unit includes a generally upright flange and a generally horizontal flange. The upright flange includes magnets suitable for attaching the wall mount unit to the sheet steel wall of a paint room. The horizontal flange presents a channel and an upright slot that are suitable for receiving and holding the hose and hose clamp collar. The air hose is able to be slid through the upright slot into the channel and the hose clamp collar is able to be dropped into the recess in the horizontal flange in order to securely hang the air hose in a position that elevates the air hose above the floor of the paint room.

The invention discloses a steel plate floor support plate and an implementation method, and aims at solving the problems that a traditional floor support plate is insufficient in rigidity and strength, large in steel consumption, complex in construction, low in material utilization rate and the like. The floor support plate comprises a wide upper flange (the minimum width is larger than or equal to 30 mm), a wave-shaped reinforcing steel bar web member, a lower chord reinforcing steel bar and a profiling thin-bottom steel plate, the wide upper flange is of a combined type or thin steel plate type or trapezoidal steel pipe structure, and a side plate forming an inclination angle with a vertical shaft enhances the out-of-plane stability; the inclination angles of the steel bar web members are consistent with those of longitudinal ribs (trapezoidal ribs, closed inverted triangular ribs and the like) of the upper flange side plates and the profiled thin-bottom steel plates, so that line-surface contact welding is realized; the profiled thin-bottom steel plate is provided with longitudinal ribs and transverse ribs, so that the overall rigidity is improved; the lower chord steel bar adopts a double-layer design to strengthen node stress. According to the implementation method, industrial production is achieved through cold roll forming, automatic resistance welding and other processes. A traditional triangular truss is optimized into a trapezoid and four-side box type space structure, the bending rigidity is remarkably improved (the inertia distance between the upper flange and the profiling thin bottom steel plate is increased by 40% or above), the steel consumption is reduced by about 30%, the connection reliability is enhanced, meanwhile, the concrete consumption is reduced, the construction process is simplified, and the structure is suitable for various building scenes such as large span and heavy load.

The invention belongs to the technical field of cutting equipment, and particularly relates to a diaphragm plate cutting device for steel box girder manufacturing, which comprises a base, a conveying mechanism, an automatic cutting mechanism, two groups of extrusion limiting mechanisms, a plate thickness feedback mechanism, a plate cutting in-place feedback mechanism, a pre-cutting starting mechanism and a cutting feeding speed follow-up regulation and control mechanism. The device can automatically transfer the steel plate to be cut to continuously produce a plurality of diaphragm plates, can judge the residual cutting space of the steel plate according to the width of the diaphragm plate to be cut and feed back a signal, and can also automatically regulate and control the extrusion limiting force according to the thickness of the steel plate to avoid deformation and residual stress of the thin steel plate; and meanwhile, whether pre-cutting is conducted or not can be determined according to the thickness and hardness of the steel plate to prevent cutting cracking and roughness, and the feeding speed can be automatically adjusted based on the cutting resistance of the disc cutter to prevent overload damage of the cutter.

The utility model discloses a welding mould assembly for an ultra-thin steel plate, which solves the problems of low operation efficiency, to-be-improved welding quality and inconvenience in detection in the existing welding of the ultra-thin steel plate. The welding mould assembly for the ultra-thin steel plate comprises an upper mould, a lower mould and a rotary working table for clamping the lower mould, one side of the rotary working table is connected with the rear end of a supporting arm, the front end of the supporting arm is connected with an idler wheel through a downward pressing elastic device, and an annular upper groove is formed in the middle of the idler wheel. According to the assembly, the main polar plate and the polar frame can be rapidly welded, the height difference, caused after welding, of the main polar plate and the polar frame assembly can be reduced, and unqualified welding seams can be detected.

The invention relates to the technical field of stator iron core manufacturing, and provides a stator iron core and a manufacturing device thereof.The stator iron core comprises a punching sheet and further comprises bent notches, the multiple bent notches are formed in the punching sheet at equal intervals, and the angle of the bent notches can enable the long-strip-shaped punching sheet to be bent into a whole circle according to requirements; a plurality of mounting holes are formed in the punching sheet at equal intervals, and the plurality of mounting holes and the plurality of bent notches are arranged in a staggered manner; and the rivets are arranged in the mounting holes respectively. The invention further provides a manufacturing device of the stator iron core, and the problems that in the prior art, due to the fact that uneven force or pressure distribution is borne by the thin steel plate to be punched in the machining process, burrs are prone to occurring in the punching process, and the production efficiency is low are solved.

The invention relates to the field of buildings, and discloses a prefabricated pipe pile stand column steel supporting node and a construction method thereof.The prefabricated pipe pile stand column steel supporting node comprises a prefabricated pipe pile stand column, a pile head is arranged at the top of the prefabricated pipe pile stand column, a micro-expansion concrete filling core is arranged in the prefabricated pipe pile stand column, and the bottom end of the micro-expansion concrete filling core is fixedly connected with a round thin steel plate through anchor bars; the top ends of the anchor bars are fixedly connected with anchor plates, overflow holes are formed in the anchor plates, and the top faces of the anchor plates are exposed out of the pile head. Longitudinal steel reinforcement frameworks and transverse stirrups are arranged in the pile head to form a steel reinforcement mesh cage, a micro-expansion concrete filling core is poured by adopting a layered pouring and layered vibrating process, and end hook type steel fibers are doped, so that concrete shrinkage can be compensated, cracks are inhibited, and meanwhile, the bending strength and the shearing strength of the pile head are enhanced; and the load of the steel support can be uniformly transmitted to the prefabricated tubular pile stand column through the anchor plate, so that the node has reliable bearing capacity and crack resistance.

The utility model relates to the technical field of shock insulation, in particular to a novel rubber shock insulation support capable of enhancing tensile property, which comprises an upper connecting plate steel plate, a lower connecting plate steel plate, a rubber layer and an anti-skidding thin steel plate, the upper connecting plate steel plate and the lower connecting plate steel plate are provided with connecting grooves, the rubber layer is vulcanized and bonded with the upper connecting plate steel plate and the lower connecting plate steel plate, and the anti-skidding thin steel plate is arranged in the rubber layer. The bonding strength, stability and reliability of the upper and lower connecting steel plates and the rubber layers are improved, meanwhile, friction between the upper and lower connecting steel plates and the bonded rubber layers is increased, and slippage between the upper and lower connecting steel plates and the bonded rubber layers is avoided; the anti-skid steel plates are arranged at the upper end and the lower end of the rubber layer, so that the tensile property and the shear resistance of the rubber shock insulation support are obviously improved compared with those of a common rubber shock insulation support, and the diameter of the rubber shock insulation support is increased due to the fact that the tensile property does not meet the current standard requirement; and the problem that the rubber shock insulation support is easy to damage and needs to be replaced under the action of rare earthquakes and extremely rare earthquakes is solved.

The curvature-adjustable semi-automatic cutting machine track is composed of a plurality of tracks, each track comprises a radian adjusting mechanism, a first thin steel plate and a second thin steel plate, the first thin steel plates and the second thin steel plates are connected through a plurality of connecting beams, and the top edges of the first thin steel plates and the top edges of the second thin steel plates are advancing tracks of wheels of a semi-automatic cutting trolley. The first thin steel plate is perpendicularly and rigidly fixed to the connecting beams, and the second thin steel plate is perpendicularly and rigidly fixed to the connecting beams at the two ends of the length direction of the second thin steel plate and movably connected with the other connecting beams. The radian adjusting mechanism is used for adjusting the distance between the ends, connected with the second thin steel plate, of the connecting beams so as to adjust the curvature. The track is light and handy in structure, good in portability, capable of meeting cutting of small-curvature sector-shaped steel plates and meeting the blanking and cutting requirements of different specifications of super-large-diameter sector-shaped steel plates, wide in application range, large in curvature adjusting range and suitable for linear types with the minimum radius ranging from 4 meters to infinity.

A component (1) for an OHV valve train of a heavy-duty internal combustion engine is proposed, which component (1) is assigned to a cylinder of the heavy-duty internal combustion engine and comprises a support arm (2) with two rocker arms (3, 4) made of sheet steel below it, wherein each rocker arm (3, 4) has two side walls (7, 8, 9, 10) connected by a crossbar (5, 6), wherein a lower surface (11, 12) of the crossbar (5, 6) forms at one end a pushrod contact surface (13, 14) and at the other end an at least indirect valve mounting surface (15, 16), wherein a projection (18) with a ball head end (20) extends from a lower surface (17) of the support arm (2) for each rocker arm (3, 4), on which the respective rocker arm (3, 4) is connected via a cap (19) in a top surface (21, 22) whose crossbeam (5, 6) pivotably rests against it and wherein the support arm (2) has two guide surfaces (23) extending transversely to it for each rocker arm (3, 4), which are connected to sections of the side walls (7, 8,9, 10) of the respective rocker arm (3, 4) comb to its aligned guide.

The invention discloses a method for rapidly detecting chemical components in a thin steel plate below 2mm by using a direct-reading spectrometer, belongs to the technical field of physical and chemical detection, and aims to solve the problem that a sample with the thickness of less than 2mm in the national standard GB / T 4336-2016 cannot be directly analyzed by using spark discharge atomic emission spectrometry. The method comprises the following operation steps: confirming conditions such as a sample preparation mode, a sample spectrum excitation limit thickness, influence of sample flatness and use of a special sample clamp, optimizing working conditions of an instrument, and establishing a method for measuring 13 elements such as C, Si, Mn, P, S, Cr, Ni, Cu, Al, Nb, V, Ti and N in a carbon steel and low alloy steel sheet with the thickness not less than 0.20 mm through spark discharge atomic emission spectrometry. And verifying the precision and accuracy of the determination result of each element, and comparing the results to show that the determination result of each element is consistent with the standard GB / T 4336-2016. The method does not need to decompose a sample, and has the characteristics of accurate and rapid determination and good stability.

The invention discloses a polyethylene sheet steel wire composite pipeline and manufacturing equipment and process thereof, and the manufacturing equipment realizes rapid and stable spiral winding and conveying of sheets through the synergistic effect of an inner mold assembly and a pipeline synchronous belt driving mechanism; and meanwhile, the wide sheet hot-pressing composite platform can directly extrude and weld the wide sheet and the steel wire on the periphery of the pipe body according to the spiral line direction of the pipe, so that the number of welding seams is greatly reduced, and the production efficiency of a composite pipeline is remarkably improved.

The invention discloses a method for fixing an anti-seepage transition section of an irregular rock slope of a mine pit landfill, which comprises the following steps of: wet-spraying anti-seepage gelling composite spraying filler on the irregular rock slope (1-2), and forming an anti-seepage gelling composite spraying filler layer (2) on the surface of the anti-seepage transition section; an anti-seepage geomembrane (3) is laid on a self-regular rock slope surface (1-1), then a rubber pad (7) and a thin steel plate (6) are laid on the anti-seepage geomembrane (3) from inside to outside, a hollow grouting anchor rod (4) is drilled from drill holes of the thin steel plate (6) and the rubber pad (7) in a self-drilling mode, and an anti-seepage plugging agent (8) is adopted for trimming. The method is applied to reinforcement of the irregular rock slope anti-seepage transition section of the mine pit landfill, the problem that the irregular rock slope anti-seepage transition section is prone to damage in the fixing process is solved, potential hazards are eliminated, the safety and reliability of an anti-seepage system are improved, good economic benefits are achieved, and safety and environmental protection benefits are remarkable.

The invention discloses a double-jaw quick-change winding drum type coiling machine which comprises a winding drum assembly, a first jaw is formed in the upper portion of the winding drum assembly, a second jaw is formed in the lower portion of the winding drum assembly, a thin steel plate is inserted into the second jaw, and a thick steel plate is inserted into the first jaw; a first fan-shaped plate, a second fan-shaped plate and a third fan-shaped plate are installed on the outer side of the circumference of the winding drum assembly, a first ejector block is installed in the first jaw, a second ejector block is installed in the second jaw, and meanwhile a first whole-length jaw strip is fixedly installed on the first ejector block. According to the double-jaw quick-change winding drum type coiling machine, two sets of jaw devices are arranged on one winding drum assembly of the coiling machine and comprise the first jaw and the second jaw, the second jaw is used for clamping a thin steel plate, the thickness of the second jaw is 0.2-3 mm, the first jaw is used for clamping a thick steel plate, the thickness of the first jaw is 3-6 mm, and therefore the requirement for clamping both a thin plate and a thick plate can be met through one winding drum assembly; and the production efficiency can be improved.

The invention relates to a method for producing a press-hardened steel sheet component, comprising a preparation step in which a steel sheet made of a steel alloy is provided, and a hot forming process in which the steel sheet is press-hardened to form the press-hardened steel sheet component. According to the invention, the steel alloy comprises the following alloying elements: C = 0.20 wt.% to 0.45 wt.%, Si = 0.80 wt.% to 2.0 wt.%, Mn = 0.60 wt.% to 3.5 wt.%, and B = 0.003 wt.% to 0.01 wt.%. According to the invention, a mathematical relationship between the strength and the ductility of the material of the press-hardened steel sheet component is established during the hot forming process.

The invention provides a marine right-angle edge-covered reactor cabin corner shielding structure and a ship, the shielding structure is arranged in a frame-type grillwork of a reactor cabin, the shielding structure is a square structure which is formed by layered and partitioned layer-by-layer splicing, and the shielding structure comprises a shielding body, a thin steel plate, angle steel and a cladding steel plate. The shielding structure is tightly attached to the wall of a reactor cabin and laid outwards layer by layer, and the shielding body sequentially comprises a first shielding material, a second shielding material, a third shielding material and a fourth shielding material from inside to outside. The outer side of the shielding body is coated and fixed with a thin steel plate, and is welded and fixed with a group of angle steel; a covering steel plate is laid on the outer side of the reactor cabin structure and used for sealing the installation grids and protecting shielding materials in the reactor cabin. According to the technical scheme, the problems of shielding integrity and light weight of the arc-shaped corner part of the reactor cabin in a nuclear power ship and a nuclear power floating platform can be solved, leakage of reactor radiation to the peripheral area is weakened to the maximum extent, and the radiation safety of personnel and equipment in the peripheral area is guaranteed.

An electric motor (1) which is particularly suitable for use in a camshaft adjuster has a multi-part housing (2) which comprises a housing shell (3) made of a first material, in particular sheet steel, and a housing cover (4) made of a second material, in particular light metal, wherein a stator-rotor assembly (5) and an associated electronic module (10) including a printed circuit board (17) are accommodated in the space formed between the housing shell (3) and the housing cover (4), wherein the printed circuit board (17) is arranged three times, namely - firstly by formed material of the housing cover (4), - secondly by a motor contact (21) which is supported on the stator-rotor assembly (5), and - thirdly, by a pin (27) which is held in a plug module (20) which is inserted between the housing shell (3) and the housing cover (4), and is both mechanically fixed and electrically contacted.

The invention discloses a production method of a thin steel plate for a nuclear containment vessel. The steel plate comprises the following chemical components in percentage by mass: less than or equal to 0.20% of C, 0.40-0.50% of Si, 0.75-1.50% of Mn, less than or equal to 0.030% of P, less than or equal to 0.010% of S, less than or equal to 0.003% of Nb and less than or equal to 0.003% of V. Ti < = 0.003%; alt is greater than or equal to 0.30%; alt / N is greater than or equal to 4, and the balance is Fe and inevitable impurities. The production method comprises the procedures of smelting and rolling. The smelting process adopts an LF + VD external refining process; a single-phase region high-temperature fast rolling process is adopted in the rolling procedure. The produced thin steel plate for the nuclear containment vessel with the thickness of 5-10 mm meets the requirement for low yield strength, the low-temperature toughness at the temperature of-40 DEG C is good, the normal-temperature tensile ReH is 300-330 MPa, Rm is larger than or equal to 450 MPa, and A is larger than or equal to 40%; the transverse impact energy at-40 DEG C is greater than or equal to 100J.

The utility model discloses a suspender connecting structure, particularly discloses a suspender connecting structure for a bailey piece steel girder suspension bridge, and belongs to the technical field of design and construction of bridge engineering structures. The suspender connecting structure for the bailey piece steel main beam suspension bridge is relatively simple in structure, and the connecting part is firmly fixed. The suspender connecting structure comprises a cross beam, suspenders and double-row bailey piece combination beams, the two double-row bailey piece combination beams are connected through the cross beam to form a suspension bridge deck, the suspender connecting structure further comprises a pin joint connecting mechanism, and upper chords of the double-row bailey piece combination beams are hinged to the lower ends of the suspenders at the corresponding positions through the pin joint connecting mechanism.

The invention discloses 900MPa-grade hot-rolled high-strength structural steel for a CSP production line. The 900MPa-grade hot-rolled high-strength structural steel comprises the following chemical components in percentage by weight: 0.050-0.069% of C, less than or equal to 0.20% of Si, 1.50-1.70% of Mn, less than or equal to 0.012% of P, less than or equal to 0.003% of S, 0.15-0.20% of Ti, 0.18-0.55% of Cr, 0.02-0.08% of V, 0.03-0.06% of Alt, 0.001-0.004% of Ca, less than or equal to 0.004% of N and the balance of Fe. And 18 < = (Ti + V) * 104 < = 25. The low-cost alloy component design is adopted, the optimized steelmaking and hot rolling procedures are combined, the strength and plasticity of the hot-rolled structural steel can be effectively improved, and low-cost production of a thin steel plate strip with the tensile strength larger than or equal to 900 MPa is achieved; and after-treatment processes such as cold rolling or heat treatment for regulating performance are not needed, so that the production process can be greatly shortened, procedures are saved, and the method is suitable for popularization and application.

The present invention relates to a method for manufacturing a stator for an axial gap-type motor, which can minimize core loss due to eddy current by configuring split teeth using a multi-stage laminated core formed by stacking multiple sub-laminated cores having different shapes. According to the present invention, the method for manufacturing a stator comprises the steps of: preparing multiple sub-laminated cores having different shapes by primarily stacking multiple thin steel pieces for each type; preparing multiple divided teeth by secondarily stacking the multiple sub-laminated cores; forming a waterproof coating film on an exposed flat surface of a shoe of the multiple divided teeth, the waterproof coating film being made of a film thinner than a waterproof partition wall; and forming, when injection molding a body case, a front end of each of the multiple divided teeth by an insert molding method to be embedded in the waterproof partition wall.

The invention relates to a pipeline joint construction device, in particular to a large-diameter PCCP (prestressed concrete cylinder pipe) inner joint treatment construction platform which comprises a thin steel plate platform, a telescopic driving mechanism, an attaching and pressing locking mechanism, a walking driving mechanism, a balance fine adjustment mechanism and a movable crawling ladder. The upper portion of the supporting beam frame is in a trapezoid shape, walking rollers used for making contact with the inner wall of the PCCP are rotationally hinged to the left side and the right side of the upper portion of the supporting beam frame, a U-shaped frame body is fixedly connected to the lower portion of the supporting beam frame, and a telescopic driving mechanism is installed at the center of the thin steel plate platform. The left side and the right side of the bottom of the thin steel plate platform are provided with attaching and pressing locking mechanisms through supporting beam frames. The operation platform can adopt a modular welding mode, production, processing and assembly are facilitated, all functional modules can be spliced and welded into a whole on site, installation is very easy and convenient, all components are light, and the operation difficulty is low.

The invention relates to a battery carrier for an electric vehicle, comprising a battery tray (1) produced as a hot-formed and press-hardened component from a sheet steel blank, comprising a base (2) and side walls (3, 4) rising from the base (2) and having a flange (5) running around the top of the battery tray (1) and projecting outwards. A cooling channel structure (9) is formed in one piece and from a uniform material in the base (2), wherein a cover plate (12) is arranged on the base (2) in the battery tray (2) or wherein a cover plate (12) is arranged beneath the base (2) of the battery tray (1), such that cooling channels (13) are formed between the cooling channel structure (9) and the cover plate (12).

This invention discloses a method for fixing a seepage-proof transition section on an irregular rock slope in a mine landfill. A seepage-proof cementitious composite sprayed material is wet-sprayed onto the irregular rock slope (1-2), forming a seepage-proof cementitious composite sprayed material layer (2) on the surface of the seepage-proof transition section. A seepage-proof geomembrane (3) is laid from the regular rock slope (1-1), and then rubber pads (7) and thin steel plates (6) are laid on the geomembrane (3) from the inside out. Hollow grouting anchors (4) are self-drilled through the holes in the thin steel plates (6) and rubber pads (7), and the edges are trimmed with a seepage-proof sealing agent (8). This invention is applied to the reinforcement of seepage-proof transition sections on irregular rock slopes in mine landfills, overcoming the problem of easy damage during the fixing process of seepage-proof transition sections on irregular rock slopes, eliminating potential hazards, and improving the safety and reliability of the seepage-proof system. It not only has good economic benefits but also significant safety and environmental benefits.

The present application relates to the technical field of metallurgy, and particularly relates to a heat treatment production method of a thin-gauge series wear-resistant steel plate, which comprises the following steps: steel plate preparation, stacking and fastening, heating and quenching, disassembly and separation, tempering treatment and straightening treatment, wherein the stacking and fastening step is to stack the thinner steel plates as interlayer thin plates, the thicker steel plates as top cover plates and bottom cover plates, place the top cover plate on the top of the several interlayer thin plates stacked on the bottom cover plate, and fasten the top cover plate and the bottom cover plate. The present application effectively reduces the quenching residual stress of the steel plate, improves the plate shape control ability and the plate shape quality, and realizes excellent control of the plate shape of the thin-gauge wear-resistant steel by heating and quenching the stacked and fastened multi-layer thin-gauge steel plate. Meanwhile, the present application realizes the production of wear-resistant steel plates with different hardness levels using the same component in combination with different quenching cooling speeds. After tempering, the steel plate is quickly straightened using the residual heat, and the produced thin-gauge series wear-resistant steel plate has high flatness.

The invention relates to the technical field of creeping formwork devices, in particular to a hydraulic creeping formwork device for a high pier column of a bridge. According to the technical scheme, the device comprises a wall-attached support, a guide rail installed on the wall-attached support, a bearing platform connected with the wall-attached support and the guide rail, a climbing system installed on the bearing platform and a formwork system fixedly installed on a formwork supporting table, the template system comprises a plurality of elastic thin steel plates and a plurality of groups of curvature control components mounted on the thin steel plates, and the curvature control components control the maximum curvature of the thin steel plates during bending, so that the resistance during demolding can be effectively reduced, the demolding resistance can be further effectively reduced, the demolding speed can be increased, and the demolding quality is improved. The shape instability of the template is avoided, and the geometric accuracy and the surface quality of the pier column are prevented from being reduced.

The utility model discloses a skylight sunshade curtain which comprises a sunshade curtain handle and sliding blocks installed at the two ends of the sunshade curtain handle. The cross section of the sunshade curtain handle is of a double-hole structure, one side edge of the sheet steel is folded and bent inwards to form a large hole, and the other side edge of the sheet steel is folded and bent inwards to form a small hole. Correspondingly, the sliding block comprises a sliding block body, a small inserting part and a large inserting part, wherein the small inserting part and the large inserting part are arranged at the end of the sliding block body side by side. The small inserting part is clamped in a small hole of the sunshade curtain handle, and the large inserting part is clamped in a large hole of the sunshade curtain handle. The double-hole sunshade curtain handle can adapt to a narrower space layout, materials are reduced, and cost is reduced; the sunshade curtain handle is combined with the sliding block, installation is convenient, the anti-torsion capacity is higher, connecting pieces are matched through elastic clamping connection characteristics, it can be guaranteed that the structure of the whole system is more stable due to high and low temperature changes or when the whole system passes through a bumpy road, and the clamping force between the sunshade curtain handle and the sliding block can effectively eliminate the risks of vibration and abnormal sound.

The utility model relates to the technical field of wind power towers, and provides a supporting tool for a wind power tower segment steel reinforcement framework, which comprises a bottom frame, two arc frames, two bending mechanisms, a clamping mechanism and a fixing mechanism, the two arc frames are fixedly connected onto the bottom frame, the two bending mechanisms are fixedly connected onto the bottom frame, and the clamping mechanism is fixedly connected onto the bottom frame. The two arc-shaped frames are arranged on the base frame, the two bending mechanisms are arranged on the two arc-shaped frames correspondingly and used for bending the reinforcing steel bars, the two clamping mechanisms are arranged on the two arc-shaped frames correspondingly and used for lifting and fixing the reinforcing steel bars, and the multiple fixing mechanisms are arranged at the four corners of the base frame correspondingly and used for fixing the reinforcing steel bars. By means of the technical scheme, the problems that in the welding process in the related technology, operators need to frequently and manually lift the steel bars to the designated positions for welding, the welding mode is time-consuming and labor-consuming, and the welding efficiency of a steel reinforcement framework is reduced are solved.

The utility model relates to the technical field of cold-rolled sheet steel processing, in particular to a cold-rolled sheet steel decoiling flying shear decoiler, which is characterized in that a cold-rolled sheet steel is placed on a feeding component, the feeding component guides the cold-rolled sheet steel into a support frame, and dust attached to the cold-rolled sheet steel is cleaned by a cleaning component; the hydraulic cylinder drives the sliding block to slide on the supporting frame; the sliding block drives the movable knife rest to descend; the movable knife rest drives the cutting blade to descend; the cutting blade is matched with the cutting block to shear the cold-rolled sheet steel; the clamping air cylinder drives the clamping block to move, clamping of the cutting blade by the clamping block is cut off, the cutting blade is taken down from the limiting rod, the brand new cutting blade is arranged on the limiting rod in a sleeving mode, the clamping block is driven by the clamping air cylinder to reset, the cutting blade is clamped by the clamping block, and blade replacement is completed.

An anti-loosening and anti-interface sideslip fastening bolt rivet component for a sheet steel structure is suitable for fixing the sheet steel structure and comprises a bolt body, a fixing seat and a load-bearing core stud. The bolt body is of a hollow cylinder structure with an upper opening and a lower opening and is inserted into a through hole in a to-be-fixed sheet steel structure. The fixing base is arranged at one end of the hydrant body and extends outwards by a preset width relative to the circumferential direction of the hydrant body, and the middle of the fixing base is of a hollow structure and communicates with the hollow structure of the hydrant body. The bolt body is provided with a fixing part extending towards the outer portion of the periphery of the bolt body, the fixing part abuts against one side of a steel plate to be fixed, and the fixing base abuts against the other side of a thin steel plate structure to be fixed. The load-bearing core stud is arranged in the bolt body and the fixed seat; the fixing part is formed by applying a riveting force to the bolt body after the bolt body is inserted into the through hole; by means of the arrangement, the thin steel plate needing to be fixed is fixed through cooperation between the fixing part and the fixing base, and the problems that riveting equipment is too large in size, and construction is difficult in some narrow and small spaces are solved.