5 results about "Integrally closed" patented technology

The present application is a kind of full hydraulic constant roll gap straightener, comprising, high stiffness frame, be integrally closed force frame structure arrangement;Roller system device, including upper roller system and lower roller system;Upper movable crossbeam, the straightening force of upper roller system is transmitted to high stiffness frame;Self-adapting roll gap adjustment mechanism, including multiple independent and self-adapting adjustment hydraulic cylinders, the top of each hydraulic cylinder is connected to high stiffness frame, the bottom of each hydraulic cylinder is abutted to the top of upper movable crossbeam;Multi-point bending roll compensation mechanism, fixedly connected to upper movable crossbeam and upper roller system, including multiple rows of bending roll compensation units, for dynamic compensation when straightening the elastic deformation of upper roller system and dynamic adjustment the crown of upper roller system;Main transmission system;Roll changing system.The present application realizes the presetting and dynamic compensation of roll gap through self-adapting roll gap adjustment mechanism and multi-point bending roll compensation mechanism, can realize the dynamic maintenance of roll gap constant, the straightening process is stable, the degree of automation is high, the roll changing rhythm is fast, and the safety protection is reliable.

The invention relates to the field of machining, in particular to a method for machining an integrally closed impeller through cooperation of a planing table type boring machine and a vertical rotating table. According to the method, machining is achieved through cooperation of a planing table type boring machine and a vertical rotating table; a vertical rotating table (2) is additionally arranged on a rotating table (5) of the planing table type boring machine; the vertical rotating table relatively fixes the bottom of a workpiece (4) to be machined through a connecting structure (3); the workpiece to be machined is a blank of the integral closed impeller; the rotary worktable (2) is a vertical worktable; a rotating motor of the rotating table (2) rotates to drive a to-be-machined workpiece (4) to rotate for machining; the planing table type boring machine is matched with the integrated high-precision vertical rotating table to form a new linkage machining system, the machining state in the runner is clearly visible at the horizontal machining view angle, and real-time monitoring is facilitated; and cuttings are convenient to discharge. A boring rod of the spindle power system (1) is slender and telescopic, and interference in the machining process is small.

The application relates to an integrally closed double-cover closed interface of electrical auxiliary equipment, which comprises a shell, an outer cover, an inner cover and an interface module. The shell comprises a bottom plate located at the bottom and a side plate surrounded at the periphery of the bottom plate, and forms a shell inner cavity with an open top end. A through hole is arranged at the center of the bottom plate and is used for embedding and installing the interface module. The inner cover covers the hole near the shell inner cavity, and forms an inner layer protection. The outer cover comprises a cover plate and a linkage closing connecting rod. The cover plate covers the opening of the shell inner cavity. One end of the linkage closing connecting rod is fixed to the inner wall of the cover plate, and the other end is hinged to the side plate, which is used for hinging opening and closing of the whole outer cover and linkage closing of the inner cover. The cover plate far from the hinge end of the outer cover is locked with the bottom plate through pressing self-locking buckles. The interface is covered by double protective covers, has the structural characteristics of sequentially opening and linkage closing, avoids the mistaken contact of the interface module, and improves the water and gas tightness and the electromagnetic shielding protection effect of the whole shelter.

This invention discloses a steel-shell composite girder structure and its optimized design method for filling ultra-high performance concrete (UHPC) within a steel shell. It relates to the field of steel-concrete composite structure technology. The key technical points are: the invention welds and fixes the lower steel plate of the bridge deck's steel shell to the upper chord and upper crossbeam of the truss, creating a continuous connection between the upper chord and the lower steel plate, forming an integrally closed frame structure with the side plates of the steel shell. During UHPC pouring, the continuity between the upper chord and the lower steel plate avoids the problem of phased pouring. This frame structure also serves as a permanent formwork for the UHPC pouring and a part of the structural load-bearing capacity, thereby enhancing the integrity between the bridge deck and the truss. By arranging perforated I-beams, shear bolts, and transverse reinforcement details between the bridge deck's steel shell, a good combination of UHPC and steel shell is achieved, forming an integrated steel-shell-UHPC composite bridge deck system, improving the bridge deck's stiffness and load-bearing capacity.

The invention provides a novel roof structure of a stainless steel metro vehicle and a railway vehicle, the roof structure is a closed cavity-shaped roof structure composed of an upper-layer roof plate structure, a lower-layer roof plate structure and a middle-layer corrugated plate, and end camber beams are arranged at the two ends of the roof structure. A local opening structure adopts a cross beam and longitudinal beam structure with a C-shaped section for reinforcing design, the overall structure is uniform, structural sudden change and stress concentration do not exist, and overall rigidity supporting and vehicle longitudinal load transmission are better facilitated; when bearing a vertical load, the integral closed cavity-shaped structure and the middle hollow corrugated structure can effectively transmit the load and prevent larger deformation through the characteristic of good vertical rigidity of the integral closed cavity-shaped structure and the middle hollow corrugated structure; and when bearing a longitudinal load, a load transmission path is smooth, and no structural sudden change exists.