47results about How to "Reduce the amount of bending deformation" patented technology

The invention discloses a welding method for a carriage side plate of a self-dumper, which relates to the technical field of welding. The method comprises the following steps of: welding a carriage side plate; welding a weld bead on the inner plate surface of the welded carriage side plate; performing slag removal and milling on the carriage side plate for which the weld bead on the inner plate surface is welded; overturning the carriage side plate for which the weld bead on the inner plate surface is welded, and transferring onto a platform on a fourth working station; applying pressures to the two ends of the carriage side plate by using a bending device and welding a weld bead on an outer plate surface; performing slag removal and milling on the carriage side plate for which the weld bead on the outer plate surface is welded to finish welding of the carriage side plate. Compared with the prior art, the method has the advantage that the problem of large welding bending deflection of the carriage side plate can be solved.

The invention belongs to the technical field of mine conveying pipe bodies, and discloses an anti-static flame-retardant steel skeleton fiber reinforced resin pipe and a preparation technology of the anti-static flame-retardant steel skeleton fiber reinforced resin pipe. The anti-static flame-retardant steel skeleton fiber reinforced resin pipe is technically characterized in that the anti-static flame-retardant steel skeleton fiber reinforced resin pipe comprises a pipe body which comprises a seepage-proof flame-retardant conductive inner lining layer and a pressure-bearing flame-retardant conductive structural layer from inside to outside, wherein the seepage-proof flame-retardant conductive inner lining layer comprises glass fiber solidified on an inner base body, and the pressure-bearing flame-retardant conductive structural layer comprises an outer base body which is synchronously provided with a zinc-coated steel wire and glass fiber direct roving in a winding mode, wherein epoxy resin is coated on the outer surface of the zinc-coated steel wire. According to the anti-static flame-retardant steel skeleton fiber reinforced resin pipe, matching among all layers of fiber is reasonable, mechanical property is strengthened, meanwhile, weight of the tube body is lightened, multi-wall carbon nanotubes and nanometer aluminium hydroxide are filled, fine structures of all layers are changed, meanwhile, bending resistant strength and shock resistance capability are enhanced, wear-resisting property and conductivity are largely improved, service life is prolonged, and cost is reduced.

The invention relates to a welding deformation control method of a large thick-wall box body component. The method comprises following five steps: firstly, before welding, an assembly reference platform is prefabricated on the welding side of a box body plate, and the influence of warping or the uneven wall thickness of the box body plate on the welding gap is removed; secondly, before welding, a welding groove is designed to be of a double-angle V-shaped structure, and the welding line metal filling amount and the welding heat input amount in the subsequent welding process can be reduced; thirdly, during pre-welding assembly, a flexible welding deformation control tool is prefabricated in a box body; fourthly, in the welding process, welding lines on the two sides of a transverse plate of the same box body are subject to symmetric welding application at the same time; and fifthly, in the welding process, according to the transverse shrinkage amount of the welding lines of the box body, the transverse elongation amount of the flexible welding deformation control tool is adjusted to control the transverse opening size of an inner cavity of the box body component, and further, the bending deformation amount of a box body vertical plate is controlled. Finally, the welding deformation control method can effectively control the welding deformation amount of the large thick-wall box body component.

The invention relates to an embossed flattened rigidity-reinforced electrolytic electrode plate and a preparation method thereof, the electrolytic electrode plate comprises an electrode plate, an embossed groove is arranged on the surface of the electrode plate, and forms a concave convex pattern to improve the electrode plate surface strength and bending resistant ability. The embossed groove is composed of a plurality of transverse embossed grooves and oblique embossed grooves to form a structure shaped like a Chinese character mi, and raised structure composed of an upper triangular convex block and a lower triangular convex block is formed on the electrode plate. The beneficial effects of the embossed flattened rigidity-reinforced electrolytic electrode plate are that: aiming at the electrode plates of different types, reinforced stripes with different specifications and different shapes are designed, through embossing and shaping of the reinforced stripes, the electrode plate rigidity is greatly enhanced, the internal stress is eliminated, the objective of improving the electrode plate surface flatness, reducing the bending deformation, and enhancing the electrode plate bending resistant ability can be achieved, anode and cathode short circuit phenomenon in the process of electrolysis due to deformation can be avoided, the power consumption in the electrolysis or plating process can be effectively reduced, at the same time, cathode product quality is improved, the labor intensity is reduced, and production efficiency is improved.

The invention discloses a compressing device for a carriage side plate of a self-dumper, which relates to the technical field of welding. The compressing device comprises a frame which is provided with a platform, wherein both sides of the frame are provided with tracks; a plurality of gantries are erected on the tracks through walking wheels; and compressing air cylinders are arranged above the gantries, are arranged on slide rails on the tops of the gantries through rollers at the bottoms of the compressing air cylinders, and are connected with pressure blocks ascending and descending on guide pillars. Compared with the prior art, the compressing device has the advantages that a welding counter-deflection is pre-applied to the carriage side plate, the two ends of the carriage side plate are used for welding a welding seam in a compression state, the welding deflection of the carriage side plate in a welding process counteracts with the pre-applied anti-deflection, and the welding bending deflections of parts are small, so that the welding deflection of the carriage side plate along a thickness direction is reduced.

The invention relates to equipment for quickly cooling an aluminum material. Cooling fans are arranged on both side walls of a cooling chamber; an air deflector is arranged at the upper part of the cooling chamber; air vents are arranged at two sides of the air deflector; a vertical clapboard is arranged between the air deflector and the top wall of the cooling chamber and placed in the middle; two air outlets are arranged on the top wall of the cooling chamber and each air outlet is connected with a flue which is internally provided with a plate tipping mechanism; a gas collection tank is arranged above the two flues and communicated with the two flues; two smoke tubes are drawn out from the gas collection tank and a tube smoke venting fan is arranged on each smoke tube; and water mist systems are also arranged at two sides of the cooling chamber and below the air deflector. During the use, the fan ensures that the strong wind is blown from left to right along an air flue so as to cool the work pieces; after a certain time, the airflow is blown from right to left along the air flue; and the circulatory frequent reversion ensures that the large-quantity strong wind flows sufficiently and circularly, ensures that the cooled wind are distributed more uniformly in a windrow area of the cooling chamber, and improves the quality of the aluminum material.

The invention provides a reciprocating four-cylinder slurry pump. The reciprocating four-cylinder slurry pump comprises four single-cylinder pump head systems, a flat-bottom driven part eccentric wheel type disk cam plunger driving system and an eccentric wheel type cam supporting and transmission system. Each single-cylinder pump head system is provided with a slurry suction channel, a slurry discharge channel, two steel ball one-way valves and a plunger cavity. Four flat-bottom driven part eccentric wheel type disk cam mechanisms are adopted for the plunger driving system. Plungers are fixedly connected with flat-bottom driven parts. The flat-bottom driven parts directly drive the plungers to conduct reciprocating motion. Four eccentric wheel type cams are evenly mounted on a cam supporting shaft in the eccentric wheel type cam supporting and transmission system at the interval of 90 degrees. The reciprocating four-cylinder slurry pump is compact in structure, light in weight, low in vibration and noise, convenient to maintain, high in mechanical efficiency and reliability and small in flow rate and pressure pulsation, and the cam supporting shaft is small in stress.

The invention relates to a cylinder gasket of an engine. The three-layer cylinder gasket comprises an upper layer metal plate, a support layer metal plate and a lower layer metal plate; circular cylinder hole sealing ribs are arranged at the circumference of the upper layer metal plate and the lower layer metal plate; the upper surface and lower surface of the support layer metal plate form a cylinder hole retainer at the circumference of a cylinder hole; and the front end area and rear end area of the support layer metal plate form a front end retainer and a rear end retainer respectively. The height of the cylinder hole retainer is changeable, so the contact pressure between the sealing ribs of the cylinder gasket and a cylinder cover as well as a cylinder body is uniform; and the front end retainer and the rear end retainer can counteract a part of the upward bending deformation of the cylinder cover resulted from the explosion of pressure, namely, the longitudinal bending deformation of the cylinder cover can be reduced, thus the sealing reliability of the cylinder gasket and the flexible life of the cylinder cover can be improved conveniently.

The invention provides a circulation structure for a stretch-blow molding machine, comprising a conveyer belt which cycles along a preset route. The conveyer belt consists of two or more chain links which are pivoted one by one in order and a chain link comprises a bridging part with preset length, whose prolate axis is perpendicular to the circulation direction, a pair of connecting parts convexly arranged parallel on the preset places of the bridging part respectively with a preset distance; the connecting parts have preset length and the front ends and the rear ends of the connecting parts are respectively pivoted with the rear ends and the front ends of the adjacent chain links through the same bolt; a accommodation room is confined among the bridging part, a pair of connecting parts and a pair of bolts. A bracket is arranged inside the accommodation room to hold the conveyer belt which has certain length and weight.

The invention provides a multi-section telescopic rod. The multi-section telescopic rod solves the technical problem that in the case of an existing multi-section telescopic rod, when multiple sections of the telescopic rod need to be used for the extension operation, a rod body of the telescopic rod is relatively large in swinging amplitude under the action of external force and then is not easyto control. The multi-section telescopic rod is provided with n sectional rods, n-1 joints and n-1 connecting lock pieces, wherein n is a positive integer not smaller than 2; and a cylindrical first locking through hole and a cylindrical second locking through hole which communicate with each other are formed in each connecting locking piece, the hole diameter of each first locking through hole isthe same as the outer diameter of the corresponding front sectional rod, moreover, each first locking through hole is connected with the outer wall of the corresponding front sectional rod in a sliding fit mode, the hole diameter of each second locking through hole is the same as the outer diameter of the corresponding rear sectional rod adjacent to the corresponding front sectional rod, and eachsecond locking through hole is connected with the outer wall of one end of the corresponding rear sectional rod adjacent to the corresponding front sectional rod in a fastening mode. The multi-section telescopic rod can be widely applied to the technical field of telescopic pipes.

A vehicle suspension arm (10) coupled at one end thereof to a vehicle body (14) and at the other end thereof to a wheel support member (18) has a pair of arm members (20, 22) that are spaced apart from each other. The pair of the arm members (20, 22) define a centerline (24) of the suspension arm (10) therebetween with the cooperation with each other. The respective arm members (20, 22) have cross-sectional shapes opening to the other side of the centerline (24) side. Thus, shear centers of the respective arm members (20, 22) are located on the centerline (24) side with respect to the arm members (20, 22) respectively.

The invention discloses a method for machining a complete martensitic alloy steel cold working roll after hardening and copious cooling, belongs to the field of cutting work, and solves the problems of complex process, low efficiency and high cost of the conventional hardened martensitic alloy steel cold working roll hard cutting process. The method disclosed by the invention comprises the following steps: S1, controlling the length bending deformation of a working roll to be cut after quenching; S2, correcting a central hole in the second end of the working roll to be cut; S3, mounting the working roll, of which the central hole in the second end is corrected in the step S2, on a dedicated configuration lathe, wherein the dedicated configuration lathe comprises a main motor, a reducer, a spindle box, a large carriage, a medium carriage, an electric tool carrier, a guide rail and a rotary tailstock; S4, mounting an integral CBN tool on the electric tool carrier of the lathe, and optimizing the angle and the parameters of the integral CBN tool; and S5, setting machining parameters of the dedicated configuration lathe, and carrying out powerful cutting to fulfil cutting at a time. The method disclosed by the invention has the advantages that the cutting forbidden area of a martensitic hardened layer of a roll shaft-type part is broken through; powerful cutting is realized; and the effects of high precision and high efficiency are achieved.

The invention discloses steelmaking automatic temperature measuring and sampling equipment and a temperature measuring and sampling method thereof in the technical field of steelmaking. According to the equipment, a walking vehicle linearly moves and is fixed on a heavy rail; a robot gripper is mounted at the arm end of a robot; a pneumatic hammer device is mounted at the top of a collecting bin;a transverse moving vehicle linearly moves and is fixed at the top of the walking vehicle; a rotating device is mounted at the top of the transverse moving vehicle; the rotating axis of the rotating device is perpendicular to the top of the walking vehicle; one end of an overturning plate and one end of a second telescopic device are hinged to the rotating device; the other end of the second telescopic device is hinged with the overturning plate; a temperature measurement and sampling gun connecting plate moves linearly on the overturning plate and is fixed; and a temperature measurement and sampling gun is arranged on the temperature measurement and sampling gun connecting plate. According to the invention, the problems that a temperature measuring and sampling gun deforms and is prone todamage, the installation success rate of a temperature measuring and sampling sleeve is low, the deformation amount of the temperature measuring and sampling gun cannot be accurately judged visuallyand the like are solved, automatic temperature measuring and sampling are achieved, and the success rate of temperature measuring and sampling is high.

The invention discloses a narrow strip strain weighing sensor. The sensor comprises a bearing beam, a plurality of pin shaft sensors and a base, wherein the pin shaft sensor is horizontally installedon the base, the bearing beam includes a horizontal plate and a vertical plate which are arranged in a T shape, the vertical plate is connected with the pin shaft sensor, the pin shaft sensor is perpendicular to the bearing beam, a counter bore is formed in the side wall of the pin shaft sensor, a bottom of the counter bore is a vertical plane, and a shear type strain gauge is arranged at the bottom of the counter bore. Measurement accuracy can be improved. The invention also discloses a narrow strip array dynamic scale and a use method thereof. The narrow strip array dynamic scale is integrally installed on the ground, a position error of each installed narrow strip weighing sensor can be reduced, a measurement error is decreased, and measurement accuracy is improved. In effective test time, vehicle wheels completely act on the upper plate, namely the weighing surface, so that a requirement on installation levelness of the vehicle dynamic scale and the road surface is far lower than that of a narrow quartz weighing sensor which is directly installed on the road surface, and installation cost is further reduced.

The invention discloses a light composite crossarm and pillar of solid insulators interruptedly filled in an epoxy glass fiber tube. The product consists of an upper accessory 1, the epoxy glass fiber tube 2, a silicone rubber umbrella skirt 3, an insulated supporting plate 4, an insulated air bag 5, a filling insulator 6 and a lower accessory 7. The light composite crossarm and pillar has the following innovations: a, after the insulated supporting plate 4 is arranged in the epoxy glass fiber tube 2 and the insulator is filled in the epoxy glass fiber tube 2, inner wall leakage current and air breakdown of the epoxy glass fiber tube are blocked, no out-of-round deformation during bending stress of the epoxy glass fiber tube can also be supported, the rigidity of the product is increased, and the bending deformation is reduced; and b, the insulated air bag 5 is arranged in the epoxy glass fiber tube 2, so that the weight of the product is alleviated, the raw materials are saved, the cost is reduced, the out-of-round deformation can be transferred to the space inside the bag during the bending stress of the epoxy glass fiber tube; and meanwhile, due to fewer filler, the influence of the difference of two material dilatation coefficients on the product is reduced, and air gaps formed by poor interface and solid material tearing or deformation recovery are avoided.

The invention relates to a pile foundation reinforcing method. The method comprises the following steps that S1, a foundation pit is excavated, the foundation pit is formed through excavation, the bottom of the foundation pit is lower than the lower surface of a pile bearing platform, and a construction space is formed between the bottom of the foundation pit and the lower surface of the pile bearing platform; S2, structure construction is reinforced: S2-1, pile construction is reinforced: constructing at the bottom of the foundation pit and on one side of the vertical projection of the pile cap at the bottom of the foundation pit to form a reinforcing pile; and S2-2, reinforcing plate construction is conducted, specifically, a reinforcing plate is formed on the lower surface of the pile cap through construction, and the reinforcing plate is fixedly connected with the reinforcing pile. S3, the foundation pit is backfilled: S3-1, filling a first filler layer, and filling a first filler between the lower surface of the reinforcing plate and the pit bottom of the foundation pit to form the first filler layer. and S3-2, second filler layer filling is conducted, specifically, the side wall of the first filler layer is filled with the second filler layer, the second filler layer is vibrated and compacted from the upper surface of the second filler layer, and the upper surface of the second filler layer is higher than the lower surface of the reinforcing plate. The method has the effect of reducing damage to the pile cap during pile foundation reinforcement.

The invention discloses a honeycomb crossbeam structure. The honeycomb crossbeam structure comprises a crossbeam frame; a plurality of reinforcing rib plates are arranged in the crossbeam frame; connecting plates are arranged between adjacent reinforcing rib plates and between the adjacent reinforcing rib plates and the crossbeam frame; the reinforcing rib plates are connected into a whole through the connecting plates. The bending deformation of the crossbeam is greatly reduced under the conditions of the same materials, the same sectional area and the equal stress, so that the cross sectional area is reduced in the same deformation tolerance range, and the manufacturing cost is reduced.

The invention discloses a pulp supplying device, which includes a pulp roll, first grooves, second grooves and a frame, wherein the two second grooves are respectively fixed on the two sides of the frame; the tail ends of the two first grooves are rotationally connected with the starting ends of the second grooves through flange plate components respectively; the bottoms of the two first grooves are connected with the bottom of the frame through fourth air cylinders respectively; the fourth air cylinders drive the first grooves to rotate relative to the frame by taking the center lines of theflange plate components as axes; a shaft is arranged on the roll core of the pulp roll; the two ends of the shat move along the first grooves and the second grooves through a first bearing and a second bearing, so that the pulp roll can move among different stations.