62results about How to "Reduce deflection deformation" patented technology

The invention relates to a side roll device of a four-roll plate bending roll. The side roll device comprises a side roll bearing seat, a side roll on the side roll bearing seat, and a side roll oil cylinder connected with the side roll bearing seat, and further comprises a side roll support beam, wherein the upper side and the lower side of the side roll support beam are respectively connected with side roll support beam oil cylinders and the side roll bearing seat through side roll support beam curved plates; at least two support roll seats are arranged between the side roll and the side roll support beam in the length direction; a pair of side roll support rolls are arranged on each support roll seat and are tangent to the side roll. When the side roll device works, with the side roll support beam oil cylinders, the side roll support beam moves along the side roll support beam curved plates, or rotates around the side roll, and changes the direction at any time with the change of the stressed direction of the side roll, and as a result, the working load of the side roll is effectively transmitted to the side roll support beam through the side roll support rolls, which in turn reduces the deflexion deformation of the side roll and ensures the bending precision of workpieces.

The invention discloses a light steel beam and a structural steel frame thereof. The structural steel frame comprises a frame body and two shearing force bodies, wherein the frame body is provided with a bearing base body and a connecting base body perpendicular to the bearing base body, the two shearing force bodies are fixedly connected to the two side faces of the connecting base body respectively, the bearing base body, the connecting base body and the shear force bodies all extend in the length direction of the light steel beam, each shear force body is provided with multiple shear force base bodies connected in sequence with certain angles formed between the shear force base bodies, and the shear force base bodies at corresponding positions of the two shear force bodies are arranged in a crossing mode. In this way, the overall weight of the structural steel frame is effectively reduced, structural strength is improved greatly, and the development requirements for light weight and high strength of the steel beam are fully met.

The invention relates to a large-span liftable variable-deflection cantilever throwing rod device, which belongs to the technical field of rocket engine charging manufacturing robots; including a mobile end lifting group module, a cantilever rod, a platform base, a fixed end lifting group module, and an end throwing coating device and the shell; the upper surface of the platform base is provided with a guide rail; the mobile end lifting group module and the fixed end lifting group module are both arranged on the guide rail to realize sliding cooperation with the guide rail; the cantilever rod is arranged axially parallel above the guide rail; and the cantilever The axial head end of the rod is rotatably connected to the top of the lifting group module at the moving end; the axial tail end of the cantilever rod is overlapped with the top of the lifting group module at the fixed end; the end coating device is set on the axial tail end of the cantilever rod; the shell It is a hollow columnar structure; the shell is coaxially arranged at the axial tail end of the cantilever rod; while the present invention has both coating quality and efficiency capabilities, it can flexibly expand and contract in a small space with different lengths and different diameters of the engine shell , so as to solve the problems existing in the prior art.

The invention discloses a pre-stress basalt fiber board composite wood beam which comprises wood boards and basalt fiber boards, wherein the wood boards in the same layer of the composite beam are spliced into a whole in the length directions of the wood boards; a splicing part between two upper and lower adjacent layers of wood boards in the thickness directions of the wood boards are staggered; basalt fiber cloth wraps the outer part of each splicing part and spliced outside the splicing part; the basalt fiber boards are arranged in a though manner along the length of the composite beam and bonded with two sides of the wood board on the outmost side of the composite beam; the basalt fiber boards comprise first basalt fiber boards arranged on the inner sides of the wood boards and second basalt fiber boards arranged on the outer sides of the wood boards; the second basalt fiber boards are reinforced boards; pre-tress is applied to the second basalt fiber boards. A preparation method of the pre-stress basalt fiber board composite wood beam comprises the following steps: manufacturing the composite wood beam, generating pre-deformation, rebounding for generating pre-tension, reversing by 180 degrees and forming a pre-tress composite wood beam component. According to the pre-stress basalt fiber board composite wood beam, the technical problems of high consumption of overall wood, relatively high cost, relatively low utilization rate of short wood materials with ordinary lengths and ordinary diameters, great possibility of causing of great material waste and unreasonable use of the wood in the conventional wood structure construction can be solved.