6results about How to "Improve torsional performance" patented technology

The application relates to a connecting structure of a side wall assembly and a panoramic sunroof and an automobile. The connecting structure of the side wall assembly and the panoramic sunroof comprises a panoramic sunroof, a sunroof reinforcing ring, an assembly support and a side wall assembly. The assembly support is connected with the sunroof reinforcing ring, and the assembly support is connected with the panoramic sunroof. The side wall assembly comprises a B upright column upper inner plate reinforcing piece and a B upright column inner plate. The assembly support, the B upright column upper inner plate reinforcing piece and the B upright column inner plate form a three-layer connecting structure. In the embodiment of the application, the three-layer connecting structure formed by the assembly support, the B upright column upper inner plate reinforcing piece and the B upright column inner plate is arranged, the supporting performance of the side wall assembly to the assembly support is enhanced, and the connecting performance of the sunroof reinforcing ring connected with the side wall assembly through the assembly support is improved.

This invention belongs to the field of battery technology, specifically disclosing a cell cover and a cell. In the cell cover, a first plastic part and a connecting block are sequentially disposed on the side of the cover body away from the electrode assembly. The electrode post passes sequentially through the cover body, the first plastic part, and the connecting block from the side where the electrode assembly is located, and is then riveted to the connecting block body of the connecting block. The first plastic part has an elastic buffer on its body, which provides support and cushioning during the riveting of the electrode post, preventing damage or cracking of the first plastic part due to excessive riveting force. The connecting block body has a protective insert, which increases the structural strength of the connecting block body, improves its torsional resistance, and prevents deformation of the connecting block body during riveting, thus avoiding damage or cracking of the first plastic part due to pressure from the connecting block. This invention also provides a cell, including the aforementioned cell cover.

The invention relates to the technical field of railway vehicles, and provides an underframe, a vehicle body and a railway vehicle. The two end bottom frames are oppositely arranged at the two ends of the middle bottom frame, each end bottom frame comprises a sleeper beam, a plurality of in-sleeper cross beams and in-sleeper longitudinal beams, each in-sleeper longitudinal beam is provided with a variable-cross-section structure, and the variable-cross-section structures are used for enabling the in-sleeper longitudinal beams and the middle longitudinal beams to be through and continuously arranged in the longitudinal direction. The in-sleeper longitudinal beams are arranged along the longitudinal direction of the underframe in a full-length mode, transmit longitudinal stretching and compression loads step by step, and bear vertical loads and torsional loads of a vehicle body; and the variable cross-section structure is adopted, so that the in-sleeper longitudinal beam and the middle longitudinal beam can be continuously arranged in the longitudinal direction, continuous transition of force flow transmission is guaranteed, sudden change or notch effect is avoided, meanwhile, the variable cross-section longitudinal beam further bears the vertical load and the torsional load of the vehicle body, and therefore the strength, rigidity and torsional performance of the vehicle body are improved.

An optical fiber insulator (100) having an optical fiber cable (200) is provided. The optical fiber insulator (100) includes: an optical fiber cable (200); a ceramic sheath (120), wherein the ceramic sheath (120) is hollow and has an internal diameter (D) configured to guide the optical fiber cable (200); an insulating filler material (130) that at least partially fills the ceramic sheath (120) and is disposed between the optical fiber cable (200) and the ceramic sheath (120), wherein the insulating filler material (130) has thermal properties similar to those of the optical fiber cable (200) and the ceramic sheath (120), and wherein at least one end of the optical fiber insulator (100) is closed by at least one end cap (151, 152).

The utility model belongs to the technical field of rigid connection, and particularly relates to a rigid connection device for an H-shaped steel beam and an H-shaped steel column, which comprises the H-shaped steel column, two stiffening plates are welded in the H-shaped steel column, a beam column connecting plate is fixedly connected in the middle between the stiffening plates, round holes are arranged on two sides of the beam column connecting plate, and the H-shaped steel column is fixedly connected with the beam column connecting plate. H-shaped steel beams are connected to the round holes through bolts, an H-shaped clamping groove is formed in one side of each H-shaped steel beam, and through connecting holes are formed in the two sides of each H-shaped clamping groove. According to the rigid connection device for the H-shaped steel beam and the H-shaped steel column, the supporting piece is arranged between the H-shaped steel beam and the H-shaped steel column, so that the overall rigidity and stability of a beam column connection joint are remarkably enhanced, the supporting piece shares part of loads borne by a beam column, deformation of the joint in the stress process is reduced, and the rigidity of the joint is improved. The structure can keep better integrity when bearing complex loads, and the lateral force resistance and torsion resistance of the structure are improved.

The steel wire rope comprises a steel wire rope body, the steel wire rope body is mainly composed of a steel wire main core, a first steel wire rope outer layer, a connecting layer and a second steel wire rope outer layer, the steel wire main core body is composed of an inner layer face and an outer layer face, the inner layer face wraps the outer layer of the steel wire main core body, and the connecting layer wraps the outer layer of the steel wire main core body. The outer layer face, the inner layer face and the steel wire main core are woven in a crossed mode, the outer layer surface of the second steel wire rope outer layer is fixedly connected with a winding layer, the winding layer is composed of a plurality of synthetic fibers, the first steel wire rope outer layer is located between the inner side face of the second steel wire rope outer layer and the steel wire main core, and the core supporting force and strength of the steel wire rope are improved. The steel wire rope is made of synthetic fibers of the winding layer, so that the steel wire rope has excellent wear resistance, the service life of the steel wire rope can be greatly prolonged, and the steel wire rope also has certain corrosion resistance.