38results about How to "Reduce turning times" patented technology

A welding method for a vertically spliced super-thick steel plate is a welding method for a super-thick steel plate with the thickness ranging from 60mm to 120mm. The method is characterized by including: hoisting a primarily spliced super-thick steel plate onto a special jig frame for horizontal welding, fixing the super-thick steel plate with a waler of the jig frame by welding prior to fastening the super-thick steel plate with a ground abutting floor stand by the aid of a wedge, then using carbon dioxide arc welding for sequential symmetry horizontal welding on the front side and the back side of the super-thick steel plate respectively by even welders until spliced plate welding is finished, and finally performing postheat treatment to prevent cracks. The method has the advantages that welding deformation of the spliced super-thick steel plate can be well controlled, welding deformation correction is avoided, welding cracks are prevented, welding quality is improved, and construction requirements are met. The carbon arc air gouging process for back gouging is omitted, welding procedure is simplified, turnover times of the super-thick steel plate are decreased, workload is reduced, labor intensity is relieved, and production efficiency is improved.

The present invention discloses an extra-thick sheet submerged-arc welding technique. The technique comprises the following technological parameters and steps: 1) connector preparation: X-type beveled edges are adopted by extra-thick sheets; 2) preheating: first heating a back side of an extra-thick sheet and then a front side of the extra-thick sheet, a preheating temperature being 150 DEG C to 160 DEG C, and a heating rate being not higher than 105 DEG/h; 3) backing welding: after preheating, using flux-cored wire gas shield welding for backing welding for two paths to form two layers, and using submerged-arc welding to fill at least two paths to form one layer, maintaining interlayer temperature to be not higher than 230 DEG C; 4) turning over after an inter-welding deformation is not larger than 6-8 mm; 5) backside welding: after carbon gouging and back chipping, backing welding according to the step 3) after the extra-thick sheet reaches a preheating requirement according to the preheating method described in the step 2); 6) stress relief treatment; and 7) carrying out post heating treatment at 200 DEG C/2h after the welding, then slowly cooling the extra-thick sheet to be at the room temperature. With adoption of the technique provided by the present invention, rooting welding deformation is reduced, welding residual stress for subsequently filling a cover face is also reduced, and thus turn-over times in welding of the extra-thick sheet are reduced.

Pillow with automatic height adjustment comprises: sensor, pillow, lifting mechanism. The wire is installed on one side of the pillow. The sensor is installed on one side of bed or the bed head. The sensor is human body infrared spectrum sensor or active infrared launching and accepting sensor or ultrasonic ranging sensor or microwave ranging sensor. The wire is the sensitive element of the resistive sensor or capacitive sensor. The input terminal of the relay connects to the output terminal of the sensor. The output terminal of the relay is series or parallel with the control switch of the lift mechanism of the pillow. The pillow automatically changes the height of the pillow following the change of the sleep gesture so as to accord with the physiological curve of the human cervical vertebra.

The invention relates to a special tool clamp for a wind driven generator one-piece bearing pedestal casting and a machining technology and belongs to the technical field of mechanical part machining. The special tool clamp comprises a box, a positioning device, a pressing device, an adjusting device and a supporting device. According to the special tool clamp for the wind driven generator one-piece bearing pedestal casting, a one-piece bearing pedestal lies one side to be clamped on the special tool clamp, a rotating workbench, bearing pedestal holes, a blast hole, an end face and peripheral faces complete finish machining through one time of clamping, the cylindricity and the coaxiality of the bearing pedestal holes in the two ends are guaranteed, the overturning frequency of the casting is reduced, the machining precision required in graph paper is achieved, production efficiency is improved, and production cost and labor intensity of workers are reduced.

The present invention provides a Chinese medicine with the functions of promoting blood circulation, removing blood stasis, astringing sore and subduing swelling for preventing bed sore with obvious effect. Said Chinese medicine is made up by using 9 Chinese medicinal materials of anomalous Artemisia, biota leaf, rose-of Sharon root bark, coptis root, aloe and others and vegetable oil through a certain preparation process.

The invention discloses an air cushion bed based on a pressure change rate. The air cushion bed comprises a detection module, a data processing module and an execution module. The detection module is provided with a pressure sensor, an excrement and urine sensing device and an air pressure sensor, the pressure sensor is used for detecting the pressure and controlling the inflation and deflation rates of the air cushion bed according to the pressure change rate, the excrement and urine sensing device monitors whether a patient suffers from incontinence or not, the air pressure sensor detects the inflation and deflation state of the air cushion, and safety is guaranteed. The data processing module carries out remote data transmission by using Zig Bee, carries out data processing on received detection data by using an RANSAC algorithm, and carries out PWM (Pulse-Width Modulation) automatic adjustment on the inflating and deflating speed according to the processed data. The execution module comprises an upper-layer air cushion and a lower-layer air cushion, and body position changes such as left-side turning over, right-side turning over and sitting up are achieved through the combined action of inflation and deflation of the upper-layer air cushion and the lower-layer air cushion. Compared with a traditional air cushion bed, the air cushion bed has the advantages that the inflation and deflation rate of the air cushion can be automatically adjusted, the comfort of a patient is greatly improved, and greater convenience is brought to medical staff.

The invention discloses an embedded cross-shaped circular tube davit node member and a manufacturing method thereof, an L-shaped wing web plate structure is formed by assembling a web plate on one side of a slotted wing plate, then an I-shaped member is welded on the L-shaped wing web plate structure, and a vertical stiffening plate of the I-shaped member penetrates through a slot; a web plate on the other side and two stiffening plates parallel to the wing plate with the groove are assembled; the method comprises the following steps: welding a variable cross-section bracket on one side, subsequently welding a wing plate on the other side, completing the welding of a box-shaped column body, then sequentially welding the variable cross-section bracket, the box-shaped bracket and an embedded cross-shaped circular tube on the box-shaped column body, finally welding a floor bearing plate, a lifting lug plate, a connecting lug plate and the like, and carrying out component integrity acceptance after all parts are welded. The structure is simple, assembling is convenient, and welding is convenient; and through integral rigid connection of the embedded cross-shaped round pipe and the box type, the problem that the connection strength and rigidity are not high enough due to node conversion is solved, and the node connection strength and rigidity of the conversion layer are improved.

The invention discloses a dual reinforcing ring of a marine large liquefied gas storage tank. The dual reinforcing ring comprises a panel, web plates and reinforcing ribs. The two layers of web platesare arranged, the web plates comprise the bow web plate and the stern web plate, and a reinforcing ring structure is formed by the bow web plate, the stern web plate and the panel. Mounting holes corresponding to the outline of the panel are formed in the bow web plate and the stern web plate. The reinforcing ribs are arranged on the bow web plate, the stern web plate and the panel. Multiple kidney-shaped holes are formed in the part, between the bow web plate and the stern web plate, of the panel. Mounting bed jigs are arranged at the bottom of the outer edge of the bow web plate, and clampsare arranged at the top of the outer edge of the bow web plate. The dual reinforcing ring is reasonable and simple in structure and convenient to use; the yield strength and dynamic loads of the reinforcing ring are greatly improved, the emergence of the ultra-large liquefied gas storage tank becomes real from the paper; and by means of the structural characteristics of the storage tank, the production process is optimized, the number of times of turnover of the structure is effectively reduced, the segmented manufacturing efficiency is greatly improved, and meanwhile consumption of manpowerand resources is reduced from the cost.

A surfboard fin has a curved forward fin portion and a straight rearward fin portion. When attached to a surfboard, the curved forward portion is positioned on the surfboard so the curvature of the forward portion is directed toward the centerline of the surfboard. The concave curve of the forward portion allows for faster and easier maneuverability of a surfboard while in use. In order to reduce drag caused by the curvature of the forward fin portion, one or more through holes may be formed through the forward fin portion to allow water to pass through the fin and reduce drag.

The invention discloses a method for manufacturing a side main beam with a suspension centre penetrating through I shape weathering resistance steel. The method comprise the steps that element piecesare manufactured; I shape assembling and welding is carried out; an air nozzle separation plate joint plate element, cross beam web plate joint plate element, web plate vertical stiffening rib elementand web plate transverse stiffening rib element are assembled and welded; a lifting point pulling plate is subjected to hole milling; shear nails are welded; the center of the hanging point pulling plate is used as the base to mark the line after the shear nails are welded; the in-plant second tangency end is cut, and the in-plant base ends of an upper horizontal plate element, a web plate element and a lower horizontal plate element are cut. According to the method, each assembly element is resolved in a modularized mode, the assembling and welding sequence is reasonable, the welding processis advanced, the degree of automation is high, the deformation caused by welding is small, and the assembling precision is high; and rod pieces are assembled by the forward-calculation method, so that the number of turning over is reduced, the efficiency and precision of assembling and welding are improved, and good economic results are obtained.

The invention relates to the technical field of forging equipment, and particularly relates to a tailor-welding method for stand columns of a pressure machine tool. The tailor-welding method comprisesthe following steps that 1, U-shaped boxes are spliced, the splicing size of the stand columns is reserved, and reserved side plates and guide rail plates at the openings of the U-shaped boxes are not installed; 2, the U-shaped boxes are paired in pairs, and every two U-shaped boxes are welded together in a back-to-back mode through a plurality of connecting iron plates; 3, the interior of each U-shaped box is welded; 4, the connecting iron plates are removed, the paired U-shaped boxes are separated, and the reserved side plates and the guide rail plates are welded to each U-shaped box to form the stand columns; and 5, stress relief annealing is conducted on the stand columns. By the adoption of the tailor-welding method, the problems that in the prior art, after each stand column is welded, the corresponding reserved side plate is laterally bent and deformed, manual flame leveling is needed, a large amount of time is wasted, the stand columns are laterally bent and twisted to be deformed, the stand columns are shrunk in the length direction, and consequently the machining allowance is insufficient can be solved.

The invention relates to a portable flame cutting device for H-shaped steel. The portable flame cutting device comprises stirrups, the H-shaped steel and a tube climbing machine, wherein the stirrups are located below the H-shaped steel, and the tube climbing machine is located on the H-shaped steel; a web plate of the H-shaped steel is horizontally arranged, and the lower end part of a flange plate of the H-shaped steel is propped against the stirrups; the H-shaped steel is further provided with a clamp and a rail which are connected, and the clamp and the rail are connected to the flange plate of the H-shaped steel in a sleeved mode; the rail is located on the outer side of the flange plate, and the clamp is located on the inner side of the flange plate; and the tube climbing machine is located in the rail, and the rail is vertically arranged in the width direction of the flange plate. Compared with the prior art, the portable flame cutting device has the advantages that the turning-over frequency is reduced, and the unhooking danger probability and the safety accident coefficient are reduced. The device can be hung on the outer side of the flange plate during blanking of the flange plate, and the device and the inner side of the flange plate are fixed through an adjusting bolt. The tube climbing machine is fixed to a rail frame, and the tube climbing machine is adsorbed to the rail after being powered on. The tube climbing machine runs to drive a flame cutting torch to perform blanking and beveling on the flange plate, and the turning-over condition of a component is reduced.

The invention discloses a health care mattress. The health care mattress comprises a bed cover and a bag, wherein the bag is sleeved by the bed cover. The health care mattress is characterized in thatthe bag comprises a frame and partition plates, the partition plates comprise horizontal partition plates and vertical partition plates, the horizontal partition plates are mounted in the frame in parallel, the vertical partition plates are mounted in the frame in parallel, the horizontal partition plates are vertical to the vertical partition plates, the horizontal partition plates and the vertical partition plates form a plurality of filling areas, through holes are formed in the horizontal partition plates and the vertical partition plates in each filling area, each filling area is sealedby liquid, V-shaped grooves are formed in the central positions of the tops of the horizontal partition plates and the vertical partition plates, and the openings of the V-shaped grooves face upwards.For the health care mattress, through the arranged air exhaust grooves, the purpose of ventilation is achieved, and the potential health hazards caused by failure of air ventilation due to complete contact between the human body and the bag can be effectively eliminated.

The invention provides a mattress and a sickbed. The mattress comprises a supporting bed body, a bed surface buffer cushion and a plurality of telescopic rods, wherein the telescopic rods are fixedlymounted on the supporting bed body and can stretch and retract relative to the upper surface of the supporting bed body; the bed surface buffer cushion is laid on the upper surface of the supporting bed body, and the edge of the bed surface buffer cushion is fixedly connected with the supporting bed body; and the telescopic rods can stretch and retract alternately, so that different parts on the bed surface buffer cushion are recessed or bulged alternately. The mattress can effectively prevent pressure sores.

The invention discloses a supporting structure and a connecting method, taking one of the supporting structure as an example, the supporting structure comprises a box-shaped body, the box-shaped body is vertically arranged, a grouting channel is formed in the box-shaped body, grouting holes are formed in the two ends of the box-shaped body respectively, the grouting holes communicate with the grouting channel, a reinforcing assembly is arranged in the grouting channel, and the reinforcing assembly is arranged in the box-shaped body. The reinforcing assembly comprises a plurality of first reinforcing plates, the first reinforcing plates are sequentially arranged in the grouting direction of the grouting channel, and through holes are formed in the first reinforcing plates and communicate with the grouting channel; and the bracket assembly is connected to the outer side wall of the box type body. The reinforcing assembly is arranged in the box type body and comprises a plurality of first reinforcing plates connected to the grouting channel, and the structural strength of the box type body can be enhanced through the first reinforcing plates.