8results about How to "Increased torsional rigidity" patented technology

The utility model discloses a carbon fiber surface layer snowboard, which comprises a surface layer, a core layer and a bottom layer which are sequentially laminated, the surface layer is a carbon fiber fabric curing plate, and a glass fiber and / or carbon fiber fabric reinforcing layer is arranged between the surface layer and the core layer and / or between the core layer and the bottom layer. The carbon fiber fabric solidified plate is used as the surface layer of the snowboard, so that the overall strength and rigidity of the snowboard are remarkably improved, the weight is greatly reduced, a skier can control the snowboard more easily and freely, and the flexibility and comfort of sliding are improved; the glass fiber and / or carbon fiber fabric reinforcing layer is additionally arranged, so that the impact resistance of the snowboard is further enhanced, the damage risk during high-speed sliding or collision is effectively reduced, meanwhile, the torsional rigidity is improved, and the stability and the control accuracy of the snowboard in a complex snowway environment are ensured; interlayer stripping is prevented, and the durability of the snowboard is also improved.

The application provides a core wire assembly for a guide wire, a guide wire and a guide wire system. The core wire assembly comprises a tubular element and a shaping element. A plurality of cut grooves are arranged on the side wall of the tubular element. The plurality of cut grooves are arranged along an axial direction parallel to the central axis of the tubular element and are offset from each other along a circumferential direction around the central axis. At least part of the plurality of cut grooves extends along the circumferential direction. The tubular element is sleeved on the outside of the shaping element. The core wire assembly of the application can greatly increase the torsional rigidity of the core wire assembly without changing the surface properties of the existing core wire assembly, so that the types of guide wires available for operators to choose are more diverse to meet various surgical needs.

A vehicle body structure of an electric vehicle, in a vehicle body structure without a floor tunnel that greatly bulges upward from a floor panel, is capable of sufficiently improving the torsional rigidity of the vehicle body. The vehicle body structure (A) is provided with: a floor panel (41) that constitutes a floor of an occupant space (R1); a center tunnel (80) that extends in a front-rear direction and is provided so as to be separated upward from the floor panel (41) at a central portion in a vehicle width direction of the occupant space (R1); and a connecting member (101-103) that extends upward from the floor panel (41) and is fixed to the center tunnel (80) at an upper portion, and links the center tunnel (80) to the floor panel (41).

The invention discloses a supporting structure of an electric appliance, the electric appliance comprises a left side plate, a right side plate, a back plate, a front cross beam and a rear cross beam, two ends of the front cross beam and two ends of the rear cross beam are respectively fixed at the tops of the left side plate and the right side plate; and two ends of the supporting beam are respectively fixed at the tops of the cross beams. According to the top supporting structure, by arranging the cross beam and the supporting beam structure, the supporting and torsion resisting effects on the electric appliance are improved, meanwhile, the assembling difficulty of the electric appliance is reduced, the size and weight of the electric appliance are reduced, and the production and transportation cost of the electric appliance is reduced.

The invention relates to the technical field of vehicles, in particular to a vehicle body structure and a vehicle. The embodiment of the invention provides a vehicle body structure which comprises two threshold beams, a floor, a rear seat support and a battery pack, and the two threshold beams are arranged in a spaced mode in the left-right direction of a vehicle; the floor is connected with the two doorsill beams; the rear seat bracket is arranged on the upper side of the floor; the battery pack comprises a battery cell module and a battery pack cross beam, the battery pack cross beam is arranged on the lower side of the floor and is opposite to the rear seat support, the two ends of the battery pack cross beam are connected with the two threshold beams respectively in the left-right direction of the vehicle, and the battery cell module is connected with the battery pack cross beam. The weight of a vehicle body can be reduced, and cost is reduced.

Split type transmission shaft relates to transmission structure technical field, including coaxial parallel rotation connection in the middle transmission shaft and universal transmission shaft in axle housing, the middle transmission shaft and universal transmission shaft are connected through meshing support structure, the other end of the middle transmission shaft is connected differential gear, the other end of universal transmission shaft is connected end transmission assembly.The utility model solves the problem that the length of universal transmission shaft of the rear drive axle of large harvester in traditional technology is lengthened, and the transmission efficiency is reduced due to the torsional deformation in the transmission process caused by the insufficient rigidity, and the left and right universal transmission shafts are not universal, which leads to the problems of large mold development investment, difficult manufacturing process turnover protection, difficult to ensure the straightness of processing, poor dynamic balance, easy to wear, high straightening cost and low production efficiency.

The vehicle comprises a vehicle frame, a battery pack and an installation support, the vehicle frame comprises a cross beam and a longitudinal beam connected with the cross beam, the battery pack is arranged below the vehicle frame, the installation support is connected with the vehicle frame and the battery pack, the installation support comprises a connecting frame, the connecting frame is provided with a connecting end connected with the longitudinal beam, and the connecting end is connected with the longitudinal beam. The connecting end is arranged close to one cross beam in the front-back direction. According to the technical scheme, the torsional rigidity of the connecting frame is improved, so that the connecting frame is prevented from being broken due to torsional deformation, the battery pack is not prone to being separated from the frame, and the safety performance of the vehicle is high.

The invention relates to a drive unit. A drive unit mounted on a vehicle is provided with: a motor; a motor-side shaft having a first spline on the outer peripheral surface thereof, the motor-side shaft being rotated by the torque from the motor; a gear-side shaft having a second spline on the outer peripheral surface thereof, the gear-side shaft being disposed coaxially with the motor-side shaft; and a connection sleeve disposed from the motor-side shaft to the gear-side shaft, the connection sleeve having a third spline that engages with the first spline and the second spline on the inner peripheral surface thereof. The connecting sleeve is configured so as to be movable in the axial direction, and at least one of a first engagement length at which the third spline engages with the first spline and a second engagement length at which the third spline engages with the second spline changes in accordance with the position of the connecting sleeve in the axial direction.