32results about How to "Increased stiffness requirements" patented technology

The invention provides a carbon fiber composite material reinforcing hydraulic oil cylinder, comprising a base, a cylinder barrel and oil openings. The oil openings are arranged at the both ends of the cylinder barrel; the cylinder barrel is a thinned metal cylinder barrel; a reinforcing layer is coated outside the cylinder barrel; the reinforcing layer is a carbon fiber composite material reinforcing layer; the carbon fiber composite material reinforcing layer uses heat convertible resin as a base body and a carbon fiber as a reinforcing material; and the carbon fiber composite material reinforcing layer contains the resin with a mass ratio of 23-55%. Compared with the full-metal hydraulic oil cylinder in the prior art, the strength, the rigidity and the anti-fatigue property of the carbon fiber composite material reinforcing hydraulic oil cylinder in various working conditions are improved by more than 20%, so that not only can the security of the product be effectively improved in the working conditions, but also more than 30% of the weight is reduced. Therefore, a mechanical pump truck is lightened, and the entire cost is reduced.

The invention discloses a paralleling model semi-active vibration isolator. The vibration isolator is characterized in that a cylindrical upper shell is arranged, a rubber main spring is plugged in a top end opening of the upper shell, a main spring framework penetrates through the rubber main spring and is provided with an upper connection stud and a lower connection stud, the upper connection stud is connected with a main vibrating object, the lower connection stud is connected with a column-shaped iron core where an excitation coil is wound, the column-shaped iron core is supported in a magnetism conduction sleeve through a cutting magnetorheological elastomer arranged on the outer circumference of the column-shaped iron core, the two ends of the magnetorheological elastomer are extruded to be connected with the top of a T-shaped support and the bottom end of the iron core, and the T-shaped support penetrates through the magnetism conduction sleeve and is fixedly connected; the upper shell is connected with a lower shell, the lower end of the T-shaped support is fixedly connected with the lower shell, and the bottom of the lower shell is provided with a connection bolt used for being connected with a basal body. By means of the vibration isolator, vibrating energy transmitted by a rotary machine to the basal body can be effectively reduced, vibration of relative parts of the rotary machine is reduced, and the service life of the rotary machine and a system of the rotary machine is prolonged.

A movable six-freedom mixed robot is composed of a static platform, three branch joins AAo, BBo and CCo, and a movable platform. Said branch join AAo (or BBo) has three guide rods: moving rods X, Y and Z, whose moving directions are mutually perpendicular for realizing the movement in X, Y and Z directions. The moving rods X, Y and Z of AAo and the moving rods Y and Z of BBo have drive force but the moving rod X of BBo has not. It can realize 6-freedom movement of movable platform. Its advantages are good decoupling performance of branch joins, high rigidity of movable platform, and no error accumulation.

The invention relates to special HME fiber glass for wind turbine blades, which is mainly prepared by mixing SiO2, Al2O3, Fe2O3, CaO, MgO, NaO2 and K2O according to the proportion; and the special HME fiber glass is characterized in that the following components are added in the components by weight percent: 0.3-2.5% of TiO2, 0.1-0.6% of LiO2, 0-0.8% of WO3, and 0.1-0.6% of CeO2. The special HME fiber glass takes the SiO2, the Al2O3, the CaO and the like as the main components, further adds four important auxiliary components of the TiO2, the LiO2, the WO3 and the CeO2, and mainly uses the TiO2 for replacing B2O3 and F2 which are conventional in alkali-free glass fiber, thereby realizing the environment-friendly property; the WO3 is used selectively, so as to improve the elastic modulus and the acid resistance of the special HME fiber glass for the wind turbine blades while ensuring the cost; particularly, the SiO2 is selected to be more than 58%, so as to improve the high-temperature viscosity of the glass. In short, the special HME fiber glass for the wind turbine blades produced by using the components has the advantages of high elastic modulus, high requirement on product rigidness, good acid resistance and good insulation performance.

The invention discloses a cast-in-place skeleton net hollow filler wall which comprises a skeleton net (1). A cast-in-place surface layer (4) and a seal surface layer (5) are arranged at outer ends of two sides of the skeleton net (1) respectively, and vertical ribs (2) and horizontal ribs (3) are sequentially arranged between the skeleton net (1) and the cast-in-place surface layer (4). According to integration of economic indicators and construction periods, the cast-in-place skeleton net hollow filler wall has an advantage over an existing air-entrapping concrete building block filler wall and a hollow internal mold metal net cement internal partition wall, has the advantages of being high in industrialized production degree and simple in site operation process, and overcomes the shortcomings in the prior art.

The invention provides a connecting structure of an front cross beam and a side wall assembly of an automobile roof, and belongs to the technical field of automobiles. The problem that the collision performance of the joint of an existing automobile roof front cross beam and a side wall assembly is poor is solved. The connecting structure comprises a connecting plate and a skylight reinforcing plate fixedly connected with the roof front cross beam, the connecting plate is provided with a base plate located on the lower side of the roof front cross beam and welded to the roof front cross beam,and the skylight reinforcing plate is provided with a longitudinal part extending in the front-back direction of an automobile body. The longitudinal part is provided with a main plate body arranged in the height direction of an automobile body, an extending plate body extending towards the rear side of the automobile body is connected to the base plate, the longitudinal part is welded to t he inner plate of the upper edge beam at the upper edge of the main plate body, and the longitudinal part is welded to the inner side edge of the extending plate body at the lower edge of the main plate body. And the outer side edge of the extending plate body is welded with a roof side rail inner plate. According to the invention, the automobile has good head-on collision performance and small offset collision performance.

The invention relates to the technical field of forging mechanical presses, in particular to an anti-unbalance-loading device of a precise hot die forging press. The anti-unbalance-loading device comprises a rack, a working table plate and a sliding block body, wherein the rack is of an integral cast steel box type frame symmetrical structure, and a symmetrical cage type is formed through a transverse plate; a positioning key is arranged at the bottom of the working table plate and fixed to the rack; the sliding block body is of an integral cast steel structure, and a long octahedral guide rail is arranged on the sliding block body; the guide rail on the front side, the guide rail on the right side and the guide rail on the rear side are 90-degree straight guide rails, and guide rails at the front and the rear of the left side are inclined guide rails; and a left-right gap adjusting mechanism is arranged on the left side of the inside of the rack, and a front-back gap adjusting mechanism is arranged on the front side of the inside of the rack. The anti-unbalance-loading device has the beneficial effects that the rigidity of the whole machine is remarkably improved, the guide precision of the sliding block is improved, and the anti-unbalance-loading capacity is high; and meanwhile, the weight of the whole machine can be reduced, green material saving is achieved, the operation precision and the forging quality are improved, and the remarkable effects of improving the precision, rigidity, efficiency and green material saving of the hot die forging mechanical press and an automatic production line are achieved.

The invention relates to a wing external joint. The wing external joint includes a horizontal plate and a side wall. There are two side walls. The two side walls are placed at both ends of the horizontal plate and the two The wall is located on the same side of the horizontal plate, and bosses are provided at both ends of the horizontal plate, and the bosses are located on the opposite side of the side wall, and a first connecting hole is provided through the boss, and on both sides A plurality of second connection holes are provided on the walls, the wing external joint is connected to the wing through the first connection holes, and the wing external joint is connected to the transition beam through the second connection holes. The external wing joint of the invention has a simple structure, greatly reduces the number of parts, and reduces the production cost; it is easy to disassemble and is convenient for maintenance in the future; the structural strength is improved and meets the use requirements.

The present application discloses a patterning method of an ITO (indium tin oxide) film. A patterned mask layer is formed on the ITO film. The method includes the following steps that: an ITO film notcovered by a mask layer is removed by means of a wet etching method; and the mask layer is removed, so that a patterned ITO film is obtained. According to the wet etching method, a wet etching solution is a mixed solution composed of oxidizing acid, medium-strength acid and weak acid, and the temperature of the solution is controlled to range from 20 and 60 DEG C; the oxidizing acid and the medium-strength acid can both oxidize ITO, the weak acid is the corrosion inhibitor of the mixed solution, and therefore, the pH value of the mixed solution can be maintained, and a reaction rate can be stable and reliable; and the oxidizing acid, the medium-strength acid and the weak acid have a high etching selection ratio for the mask layer and a substrate, so that the quality of an ITO pattern canbe improved. With the wet etching method adopted, the high selection ratio of the etching solution can be achieved with safety and stability ensured, and the high-quality ITO pattern can be obtained.

The invention provides a mounting base for mounting an automobile back door gas spring, and belongs to the technical field of automobiles. The mounting base comprises a reinforcing plate and an extension plate, wherein the reinforcing plate comprises a base plate, a connecting plate and a step plate, a plurality of gas spring mounting holes are formed in the base plate at intervals, one side edgeof the base plate is connected with one side edge of the connecting plate, the other side edge of the connecting plate is connected with one side edge connected with the step plate, and one end of theconnecting plate protrudes out of the base plate and the step plate to extend to form protruding convex extension part; one end of the extension plate is fixed on the convex extension part, and the other end of the extension plate extends along the extension direction of the connecting plate in the same direction; the base plate, the connecting plate, the step plate and the extension plate are all welded to a back door inner plate. By means of the mounting base, the manufacturing cost can be greatly reduced while the rigidity is guaranteed.

The invention relates to the field of spaceflight optical remote sensors, and particularly discloses a tooth-shaped reflector integrated supporting frame structure with high force thermal stability, which comprises a reflector and a supporting frame, and a plurality of supporting grooves are formed in the supporting surface of the reflector. The supporting groove extends in the direction close to the axis of the reflector along the edge position of the supporting face of the supporting groove of the reflector, the supporting groove comprises a bottom wall, an end wall and two side walls, the bottom wall is located on the supporting face of the reflector, and the end wall extends in the direction parallel to the axis of the reflector from the end, close to the axis of the reflector, of the bottom wall. The side walls are located on the two sides of the bottom wall and the end wall, the side, facing the reflecting mirror, of the supporting frame is provided with a plurality of supporting teeth, the supporting teeth are clamped in the supporting grooves, adhesive layers are arranged between the supporting teeth and the bottom wall and between the supporting teeth and the side walls and between the supporting teeth and the end wall, and the effects that the surface shape of the reflecting mirror can be easily kept, large vibration loads can be borne, and high temperature adaptability is achieved are achieved.

The invention relates to a precise positioning and fixing device for embedded steel bars in a cast-in-place bottom plate of a fabricated channel side wall. The precise positioning and fixing device comprises a lower-layer horizontal positioning and fixing frame, a middle-layer horizontal positioning and fixing frame, an upper-layer horizontal positioning and fixing verification sleeve plate and a plurality of vertical rods. The lower-layer horizontal positioning and fixing frame comprises two fixing frame long rods, a positioning toothed plate strip and a plurality of transverse rods; the middle-layer horizontal positioning and fixing frame and the lower-layer horizontal positioning and fixing frame are the same in structure; the vertical rods are arranged between the middle-layer horizontal positioning and fixing frame and the lower-layer horizontal positioning and fixing frame; and the upper-layer horizontal positioning and fixing verification sleeve plate is correspondingly arranged above the middle-layer horizontal positioning and fixing frame, and the top ends of the vertical rods exceed the upper-layer horizontal positioning and fixing verification sleeve plate. The invention further relates to a construction method of the precise positioning and fixing device for the embedded steel bars in the cast-in-place bottom plate of the fabricated channel side wall. The problems that in the construction process of cast-in-place bottom plate pre-embedded vertical steel bars, the positioning deviation is large, binding is loose, and fixing is not firm can be solved.

The invention discloses assembly equipment and method for a steel ball type steering intermediate shaft. A servo motor component for height adjustment is arranged at the top of an assembly frame, a liftable joint fork clamping mechanism mounting frame body is arranged at one side of a frame body, the frame body is provided with a fixed joint fork clamping mechanism component, and the joint yoke part of a steel ball type steering intermediate shaft to be assembled is clamped through the mechanism component; the lower portion of a motor for applying the torque is connected with the center position of the fixed joint fork clamping mechanism component, and the motor for applying the torque is used for applying the torque to the steel ball type steering intermediate shaft to be assembled clamped by the fixed joint fork clamping mechanism component; and an angular clearance testing mechanism component is arranged on the lower portion of the joint fork clamping mechanism mounting frame body, and the steel ball type steering intermediate shaft to be assembled is clamped through the angular clearance testing mechanism component and an adaptive steel ball is selected to assemble the intermediate shaft. According to the assembly equipment and method, an angular clearance between a shaft and a pipe is effectively and accurately tested, and the optimum matching steel ball is selected to meet the assembly requirements of various steel ball type intermediate shaft assemblies.