11results about How to "Protect structural stability" patented technology

The invention discloses a self-adaptive temperature control system of a large-span cable bridge and an installation method of the self-adaptive temperature control system. The self-adaptive temperature control system comprises a concrete support, a large-span bridge, a movable base, a limiting support, a fixed cable channel, a bridge cable channel, a first movable clamp, a second movable clamp, a movable wedge, a linear actuator, a third movable clamp, a fixed clamp and a cable. The two ends of the large-span bridge are arranged on the concrete supports on the corresponding sides through the movable bases and the limiting supports. A fixed cable channel arranged along the cable extension direction is arranged in the concrete support, and a through bridge cable channel is formed in the large-span bridge; the cable is fixedly laid in the channel through a plurality of fixing clamps. According to the scheme, the structural stability of the concrete support and the large-span bridge is protected, and the problem that in the prior art, a cable at the end of a large-span cable bridge is excessively abraded is solved.

The invention discloses a layered oxide positive electrode material of a sodium-ion battery and a preparation method of the layered oxide positive electrode material, and belongs to the technical field of batteries. The method comprises the following steps: preparing a NaNi < 0.33 > Mn < 0.33 > Fe < 0.33 > O2 precursor, mixing the precursor with a Na2S and P2S5 mixture under argon, carrying out heat treatment at 500 DEG C, and sintering with sodium hydroxide in an oxygen atmosphere at 800 DEG C to obtain the material. The core of the material is that a continuous super-ion conductor phase is formed on a grain boundary, a three-dimensional ion transmission network and a mechanical strengthening framework are constructed, the ion diffusion efficiency and the structural stability are remarkably improved, high-rate and long-cycle performance breakthrough is achieved, the process is controllable, and the industrialization potential is large.

The utility model discloses a wellhead protection structure of underground water monitoring well, including monitoring wellhead stake body, the inside fixed shell of monitoring wellhead stake body has the receiving cavity of the inside sliding of inner shell in the shell, the bottom of both sides of inner shell all is fixed with the sliding block, the both sides wall of shell is through the sliding slot on it with sliding block sliding assembly, to guide inner shell relative shell moves between the unfolding position and the receiving position, the utility model provides a wellhead protection structure of underground water monitoring well, through the sliding fit design of inner shell and shell, makes inner shell can move between the unfolding position and the receiving position. When needing overhauling or operating, can lower inner shell to the receiving position to the operating space of wellhead around is increased significantly, has overcome the defect that the traditional fixed type protection structure is inconvenient to operate, has improved the convenience and efficiency of maintenance operation greatly.

The utility model relates to the technical field of power batteries, and provides a supporting piece, a cylindrical battery and a battery pack, the supporting piece is inserted into a through hole in the middle of a roll core of the cylindrical battery, one end of the supporting piece is provided with a guide surface, the guide surface is a curved surface, and the radial cross sectional area of the guide surface is gradually reduced along the direction of inserting the supporting piece into the through hole. According to the supporting piece, the guide head with the curved guide surface is arranged at one end of the supporting piece, and the radial area of the guide surface is gradually reduced in the direction of being inserted into the through hole, so that the supporting piece is more easily inserted into the through hole, the assembly efficiency can be improved, the supporting piece is prevented from damaging a roll core in the insertion process, and the service life of the roll core is prolonged. Therefore, the structural integrity and the performance stability of the roll core can be protected, and the use performance of the cylindrical battery can be ensured.

The utility model relates to bridge construction equipment technical field, concretely is a kind of bridge edge protection movable steel stand device, including finished steel sheet, the bottom end side welding of adjacent finished steel sheet net is fixed with base connecting rod square steel between through stand square steel connection fixed, the bottom of base connecting rod square steel is equipped with U-shaped clamp, the top of base connecting rod square steel is equipped with movable screw rod, U-shaped clamp is fixed with beam body wing board clamping, and through the bottom end compaction positioning of movable screw rod.The bridge edge protection movable steel stand device in this, by using U-shaped clamp and beam body wing board clamping fixed, and through the compaction positioning of movable screw rod mode, avoid the damage of welding or bolted to beam body embedded steel, effectively protect the overall structural strength and stability of beam body.The device overall design is movable, by loosening movable screw rod, movable stand device can be easily disassembled and moved, greatly facilitate subsequent construction and maintenance.

The application belongs to the field of material dynamic mechanical property research, and particularly relates to a light gas gun impact test system with trajectory correction and a test method. The light gas gun impact test system with trajectory correction is provided with an adaptive module at the end of the light gas gun, a buffer pad ring, a trajectory corrector and a stopper are sequentially arranged at the end of the adaptive module towards the direction of the target plate, the trajectory corrector comprises a correction base, a gradual change section and a straight column section, a sample is marked by speckle calibration assembly and is launched by the light gas gun to the target plate, a magnetic speed detector is electrically connected with an oscilloscope, the oscilloscope is electrically connected with a high-speed camera, a voltage pulse signal output by the magnetic speed detector is processed by the oscilloscope and then a trigger pulse signal is output, the high-speed camera starts shooting after receiving the trigger pulse signal, and the impact process of the sample is recorded. The test system and method are detachably connected through a standardized interface, and the universality and scene adaptability are considered, so that the operation standardization and the result reliability are ensured.

The utility model relates to the technical field of automobile gearbox mold inserts, in particular to an automobile gearbox mold insert with a stable connection structure, which comprises an embedding column assembly and a reinforcing sheet assembly, a reinforcing piece assembly is arranged outside the embedded column assembly. The stability of the embedded column assembly in the embedded part of the injection molding part is enhanced through the reinforcing piece assembly outside the embedded column, so that the embedded column can be better connected with the injection molding part under the deflection force pressure of the axis of the embedded column assembly when the embedded column assembly is used, the compressive resistance in the included angle direction of the axis of the embedded column is effectively improved through the reinforcing piece, and the service life of the embedded column assembly is prolonged. The structure stability is improved, the problem that cracks occur at the connecting position of the insert column and the injection molding part is solved, the front-back pressure resistance of the insert column in the axial direction is further improved, the contact area between the insert column and the injection molding part is expanded through the reinforcing pieces, and the stability of embedded connection between the reinforcing pieces and the injection molding part is effectively improved through the arrangement of injection molding and the opening.

The application discloses a kind of distributed bionic anti-collision protection structures suitable for bridge pier, belong to bridge structure protection technical field, including main beam and pier, main beam is set on pier by support, the middle and lower part of pier is provided with distributed fish scale bionic anti-collision structure, for effectively protecting pier from being destroyed when encountering impact.The application can be prefabricated in factory, installed at construction site, and connected between pier and pier and main beam is simple, easy to construct, and can realize rapid installation.

The application provides a compound omeprazole dry suspension and a preparation method thereof, and relates to the technical field of pharmaceutical preparations.The compound omeprazole dry suspension comprises the following raw materials: omeprazole, sodium bicarbonate, magnesium silico-aluminate, hard stearic acid modified hydrotalcite, low acyl gellan gum, hydroxypropyl methyl cellulose and trehalose.The application provides a compound omeprazole dry suspension and a preparation method thereof, and the compound omeprazole dry suspension with specific particle size is prepared through specific proportioning of auxiliary materials and a specific preparation process, and the stability and solubility are significantly improved.

This invention relates to a rapid drying method, apparatus, and sodium-ion battery for Prussian blue analogue sodium-ion battery electrodes, belonging to the field of sodium-ion battery manufacturing technology. The rapid drying method includes the following steps: S1: Preparing the wet electrode sheet and feeding it into a drying chamber for drying; S2: Transferring it to an internally heated dehydration section for gradient temperature dehydration; S3: Transferring it to an instantaneous high-temperature dehydration section for instantaneous high-temperature dehydration; S4: Transferring it to a heat-preserving dehydration section for further deep dehydration; S5: Cooling the electrode sheet after step S4 to obtain a dried electrode sheet. This drying method has the advantages of being rapid and low-cost, and can minimize structural damage to the Prussian blue analogue material.

The application discloses a milling blade with a double-layer dressing structure and belongs to the field of metal cutting processing, and comprises an upper surface, a lower bottom surface and a peripheral surface, the peripheral surface comprises two side surfaces and two end surfaces, the intersection of the upper surface and the side surface forms a main cutting edge, and the intersection of the upper surface and at least one end surface forms, in sequence along the direction away from the main cutting edge, a main dressing edge, a clearance groove, a secondary dressing edge and a secondary cutting edge. In the cutting process, when the main dressing edge is damaged or broken and the surface quality is affected, the secondary dressing edge can be used to implement secondary dressing processing on the machined surface, so that the dressing processing function of the blade body is supplemented, and the machining precision of the surface is continuously maintained. The continuous use of the milling blade prolongs the effective machining time, and the service life of the milling blade is also improved.