45results about How to "Improve bending and torsional performance" patented technology

A hollow chamber structural component includes a shell component which extends along a main extension direction. A cover component is attached to the shell component, wherein a hollow chamber is disposed between the shell component and the cover component and extends in the main extension direction. A reinforcing structure is arranged in the hollow chamber and comprises: a synthetic support structure, which follows at least in some sections the main extension direction and rests with at least some sections against an inside of the shell component; and at least one reinforcing element that follows at least in some sections the main extension direction and is joined to the synthetic support structure with the aid of a layer of adhesive.

The invention provides a front spring front support cross beam assembly. The front spring front support cross beam assembly comprises a cross beam formed by a section of box iron, two upper wing boards and two lower wing boards. The cross beam comprises an upper leg board and a lower leg board, the upper leg board is arranged over the lower leg board, the upper wing boards and the lower wing boards are all bent boards bent upwards by 90 degrees and respectively comprise a vertical portion and a transverse portion, the two upper wing boards are arranged opposite to each other, the vertical portions of the two upper wing boards are arranged on the outer sides of the transverse portions of the two upper wing boards, the transverse portions of the two upper wing boards are riveted to the two end portions of the upper leg board respectively through rivets, the two lower wing boards are arranged opposite to each other, the vertical portions of the two lower wing boards are arranged on the outer sides of the transverse portions of the two lower wing boards, the transverse portions of the two lower wing boards are riveted to the two end portions of the lower leg board respectively through rivets, the two upper wing boards are arranged over the two lower wing boards respectively and correspondingly, and the two upper wing boards and the two lower wing boards are respectively provided with a bolt hole used for being connected with frame bolts. The front spring front support cross beam assembly can play the role in reinforcing the cross beam of a frame, effectively support a left front spring front support and a right front spring front support, and greatly improve the bending-resisting capability of a whole vehicle chassis.

The invention relates to a hydraulic support base. The hydraulic support base comprises a main reinforcement and two groove bodies defined by base plates. The main reinforcement comprises internal main reinforcement bodies and external main reinforcement bodies, an attached plate is arranged on the position, corresponding to a connecting hole of a connecting rod, of the internal side of the main reinforcement, and a reinforcing plate is arranged on the position, corresponding to a pillar nest, of the external side of the main reinforcement. The internal main reinforcement bodies and the external main reinforcement bodies are connected through a first horizontally-arranged cover plate, the adjacent internal main reinforcement bodies are connected through second obliquely-arranged cover plates, and a third obliquely-arranged cover plate connected with a gap bridge is arranged on the pillar nest and connected with the internal main reinforcement bodies and the external main reinforcement bodies. A second reinforcement plate is arranged outside the internal main reinforcement bodies in the length direction of the internal main reinforcement bodies, and a lifting lug is arranged on the second reinforcement plate. According to the hydraulic support base, by arranging the attached plate and the reinforcing plate on the main reinforcement, the strength and the anti-bending and anti-torque capacities of the hydraulic support base are improved, the stressed area of the base is increased, the overall length of the base and the length of a sidewalk are increased, the overall height of the hydraulic support base is decreased, and the hydraulic support base is suitable for exploitation of a thin coal seam.

The invention discloses a wing spar of a compound-wing aircraft, which comprises two transverse integral beams arranged horizontally opposite to each other, and a cross-type load-bearing beam for carrying bending and torsional moments is arranged between the two transverse integral beams. The interior of the cross-type load-bearing beam is a hollow structure, and the ends of the cross-type load-bearing beam are fixedly connected with two transverse integral beams; both ends of the two transverse integral beams are provided with an end rib for carrying bending and torsional moments. The two transverse integral beams are connected and fixed by two end ribs. The cross-type load-bearing beam has a hollow structure as a whole, which greatly reduces the structural weight of the wing. At the same time, the cross-type load-bearing beam greatly improves the resistance of the load-bearing beam Bending and torsional performance, the cross-type load-bearing beam is equipped with a water channel, which simply and effectively solves the problem of water storage and drainage inside the wing spar, and the addition of end ribs can obtain a lighter weight under the premise of determining a certain bending and torsional strength. the weight of.

The invention provides a rigid-flexible transition busbar, which belongs to the technical field of electrified railway and urban rail transit overhead catenary. It solves the problems of transitional hardness and high cost in the existing rigid-flexible transition busbar. The rigid-flexible transitional bus bar includes a bus bar body. The two ends of the bus bar body are respectively a rigid connection end and a flexible connection end. The lower part of the bus bar body has a clamping jaw. The rigid-flexible transition part whose body rigidity gradually decreases, the upper surface of the rigid-flexible transition part is a continuous transition slope; the bus bar body is distributed along the length direction with several connecting through holes passing through the bus bar body, and locks are respectively installed in the connecting through holes. Each locking bolt is covered with a positioning sleeve, and the two end surfaces of the positioning sleeve respectively abut against the inner surface of the main body of the bus bar. The rigid-flexible transitional busbar adopts a continuous transition slope for transition, eliminating hard points in the rigid-flexible transitional busbar.

The invention relates to the technical field of automobiles, in particular to an automobile body aluminum profile water tank column and an automobile. The automobile body aluminum profile water tank column comprises a main board, a first connecting frame and a second connecting frame. The first connecting frame and the second connecting frame are fixedly arranged on the same side of the main board; The first connecting frame comprises a first support plate and a second support plate; The first support plate and the second support plate together form a triangular cavity structure with the mainplate; The second connecting frame comprises a third support plate and a fourth support plate; The third support plate and the fourth support plate together with the main plate form a triangular cavity structure. The automobile body aluminum profile water tank column and the automobile provided by the invention are provided with two connecting frames arranged on the main board, so that one part isreliably connected with the other part at the same time by two identical side faces, and the cross-section structure enables the product to have higher strength, rigidity, bending and torsion resistance; Using aluminum alloy profile longitudinal / transverse beam, it has high strength and strength, and the investment of mould is low, and the production efficiency is high.

The invention discloses a drone noselanding gear well section based on catapult-assisted take-off. A landing gear well comprises partition frames at the two ends, a girder connected with the partitionframes and a skin; a landing gear fixing compartment is arranged in the middle of the landing gear well, a framework of the landing gear fixing compartment comprises four main girders, the main girders are fixedly connected with the partition frames, and partition plates are arranged at both the two sides of each main girder and the partition frames; the main girders and the partition plates forman integrated wall plate girder, the wall plate girder is hinged to a landing gear main support and a landing gear slant supporting rod, and openings are formed in the skin at the lower portion of the landing gear fixing compartment. The landing gear well is of a box body type structure low in structural weight, the openings are formed among the main girders, the rigidity of other parts of the landing gear well and the rigidity of an overall aircraft cannot be lowered, and additional strength reinforcement setting is also not needed; the wall plate girder penetrating through the whole box body has the advantages of being continuous in stress and short and direct in force transmitting path, and transmitting of instantaneous impact large loading concentrated force and torque inside the structure is benefited.

The invention provides a deformable biplane configuration. The configuration comprises an upper wing, a lower wing and a plurality of parallel distributed deformation mechanisms, wherein the upper wing and the lower wing are connected through the deformation mechanisms; each deformation mechanism comprises a connecting strut and 1 to 2 motion mechanisms; a drive mechanism and a locking device are arranged on each motion mechanism which is fixed on the upper wing or the lower wing; one end of the connecting strut is mechanically connected with the motion mechanism, while the other end of the connecting strut is mechanically connected with the motion mechanism or fixedly connected with the upper wing or the lower wing; the drive mechanism drives the motion mechanism to drive the connecting strut to ensure that the upper wing and the lower wing rotate in 0 to 180 degrees in the course direction and the height direction; and when the upper wing and the lower wing move to a set position, the locking device locks the motion mechanism, and positions of the upper wing and the lower wing are fixed. Regarding the wing configuration mode of a solar plane, the deformable biplane configuration is adopted, compared with single plane configuration, under a condition that the same wing type, the same wingspan and the same aspect ratio of a single wing are adopted, through the deformable biplane configuration, the takeoff weight can be increased, the effective load can be increased, the induced drag of the wings can be reduced, and the area of a solar cell panel can be increased, so that the solar energy absorption capacity can be improved, and the energy consumption of night flight can be reduced.

The invention discloses an improved auxiliary frame of a large-earthwork concrete mixing carrier. The auxiliary frame mainly solves the problems that loads of the mixing carrier increase substantially and a prior auxiliary frame cracks easily. The improved auxiliary frame comprises an auxiliary beam, a front table, a rear table, an inclined tensioned support, a U-shaped bent plate and an inclined support, wherein the front table is arranged at one end above the auxiliary beam, the rear table is arranged at the other end above the auxiliary beam, the U-shaped bent plate is arranged on the auxiliary beam, the inclined tensioned support is arranged between the U-shaped bent plate and the rear table, and the inclined support is arranged between an auxiliary beam cross support at the front end of the bottom of the rear table and the U-shaped bent plate. The strength of the auxiliary frame of the concrete mixing carrier can be well improved, the improved auxiliary frame can be used under all kinds of large-earthwork concrete mixing carrier using conditions, local tension resistance of the auxiliary frame of the concrete mixing carrier is improved, and stress conditions of the auxiliary frame are fully optimized.

In order to overcome the problems of paint cracking and welding seam fatigue caused by insufficient rigidity and strength of existing car door and window structures, the present invention provides a car door and window frame structure, including door inner panels, door outer panels, window frame front components, window A frame rear assembly, a waistline reinforcement assembly and an upper sash, the sash front assembly includes a sash front outer panel and a sash front inner panel overlapping each other, the sash front outer panel and the sash front A first cavity is formed between the inner panels at the front of the window frame, the rear assembly of the window frame includes an outer panel at the rear of the window frame and an inner panel at the rear of the window frame which overlap each other, the outer panel at the rear of the window frame and the outer panel of the window frame A second cavity is formed between the inner panels at the rear of the window frame. At the same time, the invention also discloses an automobile comprising the above-mentioned vehicle door and window frame structure. The car door and window frame structure provided by the invention can ensure sufficient connection rigidity and strength of the window frame, and avoid paint cracking and sheet metal rusting caused by solder joints and seam welding cracks.