33results about How to "Turn over to achieve" patented technology

An overturning tool for a suspended electric magnet is shaped like a C-shaped flat plate and comprises a top face, a bottom face, a semi-circular arc face and an opened part. The tool is characterized in that the top face and the bottom face of the overturning tool are vertically aligned horizontal faces; the top face and the bottom face are connected by the arc face; the top face and the bottom face are tangent to two ends of the arc face respectively; the opened part sleeves the electric magnet in the width direction of the electric magnet; an inner polar plate of the electric magnet is positioned at an opened end of the opened part; and an outer polar plate of the electric magnet is positioned at an inner end of the opened part. The overturning tool for the suspended electric magnet provided by the invention has the advantages that the suspended magnet can be overturned safely and easily, and coils are not damaged at the same time. The invention also provides an overturning method for the suspended electric magnet.

The invention discloses a turnover tooling and a turnover method and belongs to the field of mechanical toolings. A lifting unit is connected with a travelling crane; each turnover unit comprises a fixed pulley and a forked sling, wherein the fixed pulley is connected with the lifting unit, and the forked sling is wound on the fixed pulley and comprises a first main end, a second main end and an auxiliary end; and upper locking blocks and lower locking blocks are detachably mounted together to form locking units correspondingly, clamping spaces used for clamping parts are formed between the upper locking blocks and the corresponding lower locking blocks, upper main lifting holes are formed in the two sides of an opening of each upper locking block correspondingly, lower main lifting holesare formed in the two sides of an opening of each lower locking block correspondingly, the two main ends of each forked sling are bound into the upper main lifting holes and the lower main lifting holes aligned with the upper main lifting holes of the corresponding locking unit, an upper auxiliary lifting hole is formed in each upper locking block, a lower auxiliary lifting hole is formed in eachlower locking block, the auxiliary end of each forked sling is bound into the corresponding upper auxiliary lifting hole or the corresponding lower auxiliary lifting hole, and the situation that whenparts are overturned, local stress is excessively large, the parts are deformed due to extrusion, and assembling of the parts is affected is avoided.

The invention relates to the technical field of large electrolytic cell machining, and provides a large prebaked anode electrolytic cell shell manufacturing method capable of effectively relieving thewelding deformation. The large prebaked anode electrolytic cell shell manufacturing method comprises the steps of: (A) material stock acceptance check; (B) end plate manufacturing; (C) side plate manufacturing; (D) base plate manufacturing; (E) delivery transportation; and (F) field assembly. Through control of the welding mode and the welding sequence, the influence by the welding deformation iseffectively reduced, the once pass percent in the electrolytic cell shell machining process is greatly increased, the construction period is shortened, and the quality of electrolytic cell shells isimproved.

The invention relates to a functional fully formed knitted collar and a preparation method thereof. The lapel collar is divided into three parts: the outer collar surface, the fold line and the inner collar surface; the outer collar surface is part of the fabric folded outside, and the The inner collar surface is part of the fabric on the inside, and the fold line is a part of the fabric connecting the outer collar surface and the inner collar surface; The arc-shaped belt fabric in the direction of the outer collar surface; the arc-shaped belt fabric is flat relative to the collar surface, convex or concave outside the surface; in the fully-formed knitted collar with its own folding line of the present invention, the outer collar surface is partially woven According to the method, the folded line adopts the method of changing the yarn, so that the collar can be naturally folded, and the folded state is stable, and the three parts of the collar can be matched with different materials to achieve functionality. The preparation method of the collar is simple and the cost is low.

The invention discloses a turnover type dust isolation blackboard. A first writing board face is arranged on one side of a frame. A first turnover board is arranged on one side of the frame and is hinged to one side of the frame. A second writing board face is formed on the inner side of the first turnover board, and first wiping space is formed between the second writing board face and the firstwriting board face. A third writing board face is arranged on the other side of the frame. A second turnover board is arranged on the other side, opposite to the first turnover board, of the frame andis hinged to the other side of the frame. A fourth writing board face is formed on the inner side of the second turnover board, and second wiping space is formed between the fourth writing board faceand the third writing board face. According to the turnover type dust isolation blackboard, the blackboard can be turned over, the closed wiping space can be formed by the writing board faces of theblackboard, dust is prevented from directly entering the atmospheric environment in the wiping process, and the body health of students and teaches is facilitated; and meanwhile, two writing board faces can be cleaned at a time, and the blackboard wiping efficiency can be improved.

The invention discloses a two-hook turnover method for a steel tube arch section. The two-hook turnover method comprises the following steps: making a turnover area below a watering crane, processinga step type bearing table in the turnover area, and arranging a plurality of turnover bases on a step boundary of the step type bearing table towards the steel tube arch section; arranging two steel wire ropes on a single lifting point of the watering crane, and bundling the two steel wire ropes on two limb tubes of a chord tube; clearing and enabling a commander to enter a specified position; rising lifting hooks, lifting off the steel tube arch section, stopping lifting the hooks, enabling the commander to communicate with a driver of the watering crane, ensuring lifting weight of the two lifting hooks to be consistent, forwards moving a lifting beam crane according to the position of the gravity center of the steel tube arch section until the gravity center of the steel tube arch section reaches the position of the gravity center of the turnover base, enabling the two gravity centers to be balanced, forwards moving a watering crane beam crane, and enabling the steel tube arch section to get across a balance point of the two centers. The method can turn over the steel tube arch section by only needing two hooks, saves a set of lifting systems, greatly prolongs the service life ofthe watering crane, greatly increases a utilization rate of the watering crane, and increases a turnover safety coefficient of the steel tube arch section.

The invention discloses a coil turning stand with a positioning control device, which comprises a turning mechanism, a hanging climber arranged at one end of the turning mechanism, a step, a foot and a seat at the other end, and when the turning mechanism is in a horizontal state, through positioning The control device is set on the movable supporting seat on the turning mechanism, and the movable supporting seat can move forward, backward, left, and right relative to the turning mechanism; when in use, the lying coil is placed on the turning mechanism, and the end of the lying winding coil with a thimble is fixed on a movable On the moving support base, the other end is fixed on the feet. After the coil is installed, use the crane to lift and climb, turn the stand platform from the horizontal state to the vertical state, and use the support feet to connect and fix the turning mechanism and the seat. The seat is connected to the ground. The anchor bolts are used to fix it firmly, so as to ensure the stability of the turning mechanism, and the coil can also remain vertical without being affected, and the coil changes from horizontal to vertical, so that the subsequent process can be carried out.

A method for on-site dismantling and assembling of a large-scale oil cylinder for an accident rapid gate of a water inlet of a high-water-head power station. The oil cylinder is hoisted out from the gate opening, turned over and laid flat on the dam surface, and the dismantling of the large-scale oil cylinder for an accident rapid gate is completed in a safe, efficient, and economical manner. The installation process overcomes the long maintenance period, heavy workload, difficult operation and high safety risks of disassembling and assembling large oil tanks in high water head power stations. The hose is convenient for the subsequent control of the cylinder piston rod and the lifting of the cylinder through the center hole of the cylinder support frame; before and after lifting, the lifting head is retracted and fixed to ensure the safe lifting of the cylinder. During the lifting process, the cylinder piston rod will not slide due to its own weight. Improve safety; use the turning tool to connect the upper end surface of the oil cylinder and the lifting lug, and cooperate with the door machine and the steam crane to realize the turning; adopt the method of quickly closing the gate to the fully closed position, and replace the oil pipe when the oil in the rod cavity of the oil cylinder is at least.