25results about How to "Reduced impact strength" patented technology

This application discloses a rapid quenching device for flanges, relating to the technical field of metal heat treatment equipment. It includes: a fixed housing, partitions, guide plates, a buffer assembly, and a conveying assembly. The fixed housing is fixedly installed on the ground and has a liquid injection chamber inside. Liquid inlets and outlets are located on the periphery of the fixed housing. Four sets of partitions are vertically fixed within the liquid injection chamber, each set parallel to the periphery of the fixed housing. The upper end of the guide plate is fixedly connected to the upper end of the fixed housing, and the lower end of the guide plate is fixedly connected to the upper end of the partitions. Each guide plate and partition corresponds to a partition. Liquid passage holes are provided on both the guide plate and the partitions. The buffer assembly is rotatably mounted on the partitions, buffering flanges that slide off the partitions. The conveying assembly is fixedly installed in the liquid injection chamber and conveys the quenched flanges out of the liquid injection chamber. This application effectively reduces the problem of flange quenching devices being unsuitable for quenching a large number of flanges.

The utility model discloses a high-energy pipeline anti-throwing part, and relates to the technical field of high-energy pipeline protection devices. A plurality of steel wires are rotated and crossed based on a preset angle to form a U-shaped steel cable with the cross section being a spiral strand steel wire rope, the steel cable type U-shaped anti-throwing piece with high tensile strength and rigidity is obtained, and a buffering energy absorption layer is arranged on the periphery of the steel cable type U-shaped anti-throwing piece, so that when the high-energy pipeline anti-throwing piece is thrown and impacted by a high-energy pipeline, the high-energy pipeline is prevented from being thrown. According to the high-energy pipeline anti-throwing piece, the buffering energy absorption layer is used for absorbing throwing energy of the high-energy pipeline, the steel cable type U-shaped anti-throwing piece is prevented from being directly impacted, the impact strength borne by the steel cable type U-shaped anti-throwing piece is reduced, the tensile strength of the high-energy pipeline anti-throwing piece is improved, and therefore the protection effect on the high-energy pipeline is improved.

This invention provides a rotor lamination, a rotor structure, and a permanent magnet motor. The rotor lamination has: multiple magnetic slots, which are sequentially spaced along the circumference of the rotor lamination; multiple recesses, all located on the edge of the rotor lamination and sequentially spaced along the circumference of the rotor lamination, wherein at least a portion of any recess is located between two adjacent magnetic slots along the circumference of the rotor lamination; and multiple grooves, each corresponding to one of the recesses, wherein any groove is located at the bottom of its corresponding recess and is recessed towards the interior of the rotor lamination. The rotor structure of this invention solves the technical problem of easy breakage of the magnetic isolation bridge between adjacent magnetic poles in related technologies.

This application relates to the field of automotive technology, and more particularly to a method, apparatus, device, and storage medium for adjusting a model. The method includes: obtaining a first collision simulation result based on a whole-vehicle collision model of a vehicle; the first collision simulation result includes at least the impact force of a first barrier and a protective beam in the vertical direction and a first acceleration of the non-deformed position of the protective beam in the vertical direction; determining the equivalent mass that generates the impact force based on the impact force and the first acceleration; controlling a second barrier included in the simplified collision model to impact the protective beam included in the simplified collision model with the impact force based on a simplified collision model of the vehicle and the equivalent mass, thereby obtaining a second collision simulation result; determining a first distance based on the first collision simulation result; determining a second distance based on the second collision simulation result; and adjusting the simplified collision model based on the difference between the first distance and the second distance.

This invention relates to the field of polymer materials technology, specifically to a permanent antistatic ABS composite material based on polyethylene polyamine-aminated carbon nanotubes, its preparation method, and its application. The method includes: Step 1, basicizing carbon nanotubes; Step 2, mixing carboxylated carbon nanotubes, N,N'-dicyclohexylcarbodiimide, and 4-dimethylaminopyridine, adding N,N-dimethylformamide solvent, and then adding polyethylene polyamine to obtain polyethylene polyamine-aminated carbon nanotubes; Step 3, grafting the polyethylene polyamine-aminated carbon nanotubes with a styrene-maleic anhydride copolymer to obtain styrene-maleic anhydride-grafted polyethylene polyamine-aminated carbon nanotubes; Step 4, melting the styrene-maleic anhydride-grafted polyethylene polyamine-aminated carbon nanotubes with ABS to obtain a permanently antistatic ABS composite material. This preparation method uses polyethylene polyamine to aminate carbon nanotubes, improving the antistatic effect and mechanical properties of the ABS composite material.

The invention discloses a wind vibration resistant and fatigue resistant overhead insulated conductor, and relates to the technical field of insulated conductors, a plurality of anti-puncture metal sheets are laid on the inner side of an outer circle setting insulating sleeve at equal intervals, semicircular pressing belts are bonded to the inner sides of the anti-puncture metal sheets, and a plurality of weight reduction fixed supporting cavities are formed in the inner sides of the semicircular pressing belts at equal intervals; a plurality of biconvex elastic pieces are installed on the inner side of the weight reduction fixed supporting cavity at equal intervals, an external fixed internal resistance cooling fin is bonded to one end of the inner side of the semicircular press-fit belt, a plug-in card embedding groove is formed in one end of the external fixed internal resistance cooling fin, and a plug-in card embedding strip is installed at one end of the external fixed internal resistance cooling fin. According to the invention, through internal multi-position and all-directional energy absorption and buffering, the swing amplitude of the overhead insulated wire is slowed down, and the situation that a fixed joint of the overhead insulated wire is greatly damaged by friction due to large-amplitude swing and traction is avoided, so that the service life of the overhead insulated wire is prolonged, and the service life of the overhead insulated wire is prolonged. And the stability of overhead insulated wire installation and overhead support is ensured.

The application discloses a high-pressure structure fire-resistant breathing valve, which comprises a valve body, an exhalation channel and an inhalation channel are arranged in the valve body respectively, the exhalation channel and the inhalation channel are arranged independently, the exhalation channel and the inhalation channel are respectively provided with opening and closing valve assemblies, and the exhalation channel and the inhalation channel are respectively provided with an exhalation fire-resistant core and an inhalation fire-resistant core on the atmospheric side. The independent channel and the gradient fire-resistant structure design improve the adaptability of the breathing valve to high-pressure working conditions, reduce the influence of the fire-resistant structure blockage on the inhalation channel, and have the characteristics of reasonable structure, high safety and convenient maintenance.

The utility model discloses a chain breakage buffering device for a plate chain conveyor, which belongs to the technical field of plate chain conveyors and comprises a plate chain conveyor body and a concave frame arranged on the plate chain conveyor body, and a chain breakage buffering mechanism is arranged on the top surface of the concave frame. The chain breakage buffering mechanism comprises an L-shaped plate, a screw rod, a pressing plate, a top plate, a concave plate, a pressing wheel, a buffering rod and a buffering spring, when a plate chain of the plate chain conveyor body is broken, the broken plate chain upwards impacts the pressing wheel, the pressing wheel drives the buffering rod to upwards compress the buffering spring through the concave plate, and therefore the chain breakage buffering effect is achieved. The elastic deformation of the buffer springs can absorb impact force generated by chain breakage, kinetic energy is converted into elastic potential energy, the impact strength of the plate chain is effectively reduced, the plate chain is prevented from splashing, then the broken chain can be effectively buffered, potential safety hazards to surrounding personnel are avoided, and the safety of the plate chain conveyor in the using process is improved.

A drum-type axle cooled through liquid circulation comprises an axle unit and a cooling medium circulation system, and the cooling medium circulation system circularly passes through a shaft head, a rotary sleeve, a slip ring water through hole, a hub and a brake drum in the axle, namely circularly cools a brake unit. The brake mechanism cooling system has the advantages that various problems existing in an existing brake mechanism cooling system are solved, closed circulating type cooling of cooling media is achieved, and form safety is guaranteed accordingly; particularly, the mechanical configuration structure of the cooling medium circulation system is more reasonable, the cooling medium circulation path is beneficial to improving the heat dissipation efficiency, and the influence on the strength of related parts is low.

The application belongs to the technical field of marine lithium batteries, and discloses a marine energy-saving lithium battery capable of intermittent energy supply, which comprises a shell body, the outer wall of the shell body is symmetrically provided with adjusting plates, a top cover is arranged on the top of the shell body, and the top of the top cover is symmetrically provided with first air holes at equal intervals, the first air holes, the supporting body and the heat dissipation holes are arranged, in actual use, the heat generated by the operation of the battery pack directly contacts the supporting body, the heat absorbed by the supporting body is conducted into the inside of the heat dissipation fins, the outside air enters the inside of the heat dissipation holes from the upper and lower sides of the heat dissipation holes through the first air holes and the second air holes, contacts the heat dissipation fins, carries away the heat in the heat dissipation fins, and completes heat dissipation, the heat dissipation area of the equipment is increased, and the poor heat dissipation effect of the existing marine lithium battery in actual use is solved.

The invention discloses a valve element for a throttling valve, a machining method of the valve element and the throttling valve, and relates to the field of valve designing and manufacturing, the valve element comprises a body, and the body sequentially comprises a connecting part, a plugging part used for making contact with a valve seat for sealing and an anti-erosion part used for improving the anti-erosion capacity in the direction from the first end to the second end; the radius of the anti-erosion part tends to be gradually reduced in the direction from the first end to the second end, the surface of the anti-erosion part is provided with a multi-scale structure, and the multi-scale structure comprises a plurality of annular groove parts distributed in the axis direction of the body and a plurality of concave parts located on the surfaces of the groove parts. And the sizes of the groove part and the concave part are in a micro-size range. The valve element structure has the advantages of being low in cost and resistant to erosion.

The application provides a modified PCR ABS material for table tennis shells and a preparation method thereof, which comprises the following components in parts by mass: low-flow PCR ABS resin: 30-40 parts, high-flow PCR ABS resin: 20-30 parts, large-particle-size ABS rubber powder: 10-15 parts, small-particle-size ABS rubber powder: 3-5 parts, SAN blend: 8-15 parts, and ABS new material: 0-20 parts; the low-flow PCR ABS resin has a melt index of 10-15 g / 10 min (220 DEG C x 10 kg); the high-flow PCR ABS resin has a melt index of 20-25 g / 10 min (220 DEG C x 10 kg); the large-particle-size ABS rubber powder has a particle size of 350-400 nm; and the small-particle-size ABS rubber powder has a particle size of 50-150 nm.

The utility model relates to the technical field of interphones, and discloses a special interphone for communication, which comprises a rear shell, a heat conducting plate is sleeved in the rear shell, a plurality of groups of radiating fins are fixedly connected to one side of the heat conducting plate, a radiating component is fixedly connected to the top of the rear shell, a connecting plate is fixedly connected to the back of the rear shell, and the connecting plate is fixedly connected to the back of the rear shell. A sliding assembly is slidably connected to the interior of the connecting plate, the heat dissipation assembly comprises a dustproof net fixedly connected to the top of the rear shell, and two sets of heat dissipation fans are fixedly connected to the bottom of the dustproof net. The sliding assembly comprises a sliding block slidably connected to the interior of the connecting plate, a supporting spring is fixedly connected to the bottom of the sliding block, and a positioning rod is connected to the interior of the supporting spring in a sleeved mode. According to the interphone special for communication, through the arrangement of the sliding assembly, the impact strength borne by the interphone body is remarkably weakened, cracking or loosening of internal precision elements caused by instantaneous overload is avoided, and meanwhile the periodic pulling feeling of the waist caused by equipment bumping can be counteracted.

The utility model relates to a fuse, and specifically relates to a melt structure and a fuse with high arc extinguishing capability. Comprising two connecting pieces used for being connected with conductive terminals of the fuse, a plurality of connecting parts and a plurality of fusing parts. The plurality of fusing parts and the plurality of connecting parts are sequentially and alternately connected to form a fuse body, and two ends of the fuse body are respectively connected with the two connecting pieces; protective plates are arranged on the upper surface and the lower surface of the fusing part; a gap is reserved between the protection plate and the fusing part, and the gap is filled with an arc extinguishing medium. According to the utility model, an unextinguished electric arc is blocked through the protection plate, the spraying direction of the electric arc is changed, and the transmission path of the electric arc between the protection plate and the fusing part is changed, so that the energy of the electric arc is continuously weakened in the transmission process, the impact strength of the electric arc on the wall of the ceramic tube of the fuse is greatly reduced, and the ceramic tube is prevented from being broken.

The utility model discloses a pair of half-frame glasses and a hidden type fish wire installation structure thereof, the hidden type fish wire installation structure comprises a glasses frame, a fish wire and fixing blocks, two ends of the fish wire are respectively fixed with the two fixing blocks, and the glasses frame is provided with a containing groove used for containing the upper ends of lenses. Insertion holes with openings facing the interior of the containing groove are formed in the two sides of the containing groove and are blind holes, and the fixing blocks at the two ends of the fishing line are inserted into the insertion holes in the two sides of the containing groove from the interior of the containing groove to the exterior of the containing groove respectively. The jacks are formed in the side surfaces of the accommodating grooves of the glasses frame, and the jacks and the fixing blocks are blocked by the lenses after the lenses are mounted, so that the fixing blocks and the jacks cannot be seen from the appearance, the mounting traces of the fishing threads are completely hidden, and the integrity of the appearance of the glasses frame is favorably kept.

This invention discloses a low-loss, high-efficiency grain threshing device, relating to the field of agricultural machinery and equipment technology. It includes a threshing drum, a concave screen, a forced-feed auger, and a flow guide hood. The concave screen is fitted around the outside of the threshing drum, the forced-feed auger is located at the feed end of the threshing drum, and the flow guide hood is fitted around the forced-feed auger and connected to the front end of the concave screen. The threshing drum is equipped with threshing elements. The threshing rods on the front, middle, and rear of the threshing drum are respectively a first threshing rod group, a second threshing rod group, and a third threshing rod group. The first threshing rod group consists of 3-4 rods per group, the second threshing rod group consists of 4-6 rods per group, and the third threshing rod group consists of 2-3 rods per group. The height of the second and third threshing rods is twice the height of the first threshing rod. The gap between the first and third threshing rods in the same group is greater than the gap between the second threshing rods in the same group. This invention is beneficial for improving threshing efficiency, reducing threshing losses, and achieving high-efficiency grain threshing with low loss.

The utility model relates to pipeline mixer technical field especially relates to a pipeline mixer for reducing liquid nitrogen washing synthesis gas system resistance, including shell body, support ring, support rod, corrugated plate, flow guide hole and buffer assembly, the inner wall fixed setting of shell body has two groups of support rings, the inside fixed setting of support ring has a plurality of support rods, and a plurality of corrugated plates are arranged between two groups of support rings, and a plurality of flow guide holes are passed through and seted up in the inside of corrugated plate, and the inside of shell body is provided with buffer assembly, a pipeline mixer for reducing liquid nitrogen washing synthesis gas system resistance in the utility model is used in the process, and the inside support frame is with its firm frame structure, disperses the residual impact force, and the whole structure intensity of pipeline mixer is strengthened through the inside support structure of the device, and the impact force of super large gas synthesis gas is absorbed with buffer mechanism cooperation, effectively avoid the extrusion deformation of inner part under high load or emergency emptying condition, greatly reduce the risk of synthesis gas pipeline blockage.

The utility model relates to the technical field of diamond saw blades, in particular to a multi-notch diamond saw blade. According to the saw blade, the open grooves formed between the adjacent diamond tool bits extend towards the center of the saw blade base body, chippings generated in the cutting process can be effectively contained, chipping discharging is smoother, cutting resistance caused by chipping accumulation is reduced, and therefore the cutting efficiency is improved. The lengths of the adjacent open grooves are different, stress generated in the cutting process is effectively dispersed, the stress is prevented from being concentrated in a specific area, and therefore the influence on the strength of the saw blade base body is reduced, the structural stability of the saw blade base body is enhanced, and the service life of the saw blade is prolonged.

The utility model relates to the technical field of filling, and particularly discloses a chemical filling system, which comprises a diaphragm pump, a storage hopper and a buffer tank, the liquid inlet end of the diaphragm pump is connected with a feed pipe, the liquid outlet end of the diaphragm pump is connected with a discharge pipe, the discharge pipe is connected with the buffer tank, the liquid outlet end of the buffer tank is connected with a blanking pipe, and the blanking pipe is connected with the storage hopper. One end of the discharging pipe is connected with a first pneumatic ball valve, and the liquid outlet end of the first pneumatic ball valve is connected with a storage hopper through a hose. The utility model has the advantages that the filling precision can be improved, and the filling error is within a controllable range.

The application provides a Z-pin reinforced composite sandwich structure and a preparation method thereof.The Z-pin reinforced composite sandwich structure has a structure form comprising an upper composite skin, a core material and a lower composite skin, and composite pins are implanted in the Z direction of a preformed body of the sandwich structure for Z direction reinforcement;the composite pins are made of the same material as the composite skin, and the composite pins are implanted by a high-pressure air gun; and the composite pins are carbon fiber pins or high-strength glass steel pins.The beneficial effects of the application are as follows: composite reinforcing bars perpendicular to fiber cloth are implanted, and the scheme solves the problems of different reinforcement angles, large direction difference dispersion, non-obvious effect, weakening of other direction performance and the like caused by other reinforcement schemes, especially solves the engineering problem that large products, sandwich parts and special-shaped parts are difficult to realize sewing, and eliminates the problems of defects easily generated in the X and Y directions of the in-plane fabric and the like.

The utility model relates to the technical field of steel ball sorting equipment, in particular to a damage-free sorting device for steel balls, which avoids collision damage among a large number of steel balls, reduces the collision strength among the steel balls and between the steel balls and a tank body, and improves the damage-free sorting effect of the steel balls. Comprising a storage box and a discharging channel which communicates with the lower portion of the outer side wall of the storage box. The device further comprises a collecting device, a control device, a groove body, a trapezoidal plate and a plurality of groups of sorting holes, the groove body is arranged below the discharging channel, the groove body is arranged at a rightward inclination angle, two groups of discharging ports are formed in the groove body, the trapezoidal plate is installed in the middle of the inner side wall of the groove body, and the plurality of groups of sorting holes are formed in the outer side wall of the trapezoidal plate. The trapezoidal plate is communicated with the first group of discharge ports of the tank body, the collecting device is arranged at the second group of discharge ports and used for moving, decelerating and collecting the screened steel balls, and the control device is arranged at an opening of the discharge channel and used for controlling the discharge number of the steel balls.

The application provides an underwater butt joint reinforcement method in a high water pressure and strong permeation stratum, relates to the field of shield construction, is suitable for underwater butt joint engineering of two large-diameter shield machines, has high safety for high water pressure and strong permeation strata, effectively meets special working conditions of limited underwater construction space, and specifically comprises the following steps: step 1, a plurality of radial grouting holes are arranged in a middle shield of the shield machine, a water stop curtain is formed around the shield machine through radial grouting, and a closed construction environment is provided for subsequent construction; step 2, a plurality of groups of inclined grouting holes are pre-buried on the shield shell, advanced grouting reinforcement is carried out, and the stratum is improved to facilitate the formation of a frozen wall; step 3, after the advanced grouting is completed, a freezing pipe is inserted into the inclined grouting hole to carry out freezing reinforcement; step 4, a pressure relief hole is reserved on the shield machine, the pressure relief hole is inclined through a shield air bubble bin, and the pressure relief hole is used to control the frost heaving force and the frost heaving amount; and step 5, after the freezing is completed, whether water leakage occurs is observed through the pressure relief hole to detect the freezing quality.

The utility model provides an oil cylinder cover which is installed on a cylinder body of a hydraulic cylinder, the hydraulic cylinder further comprises a piston located in the cylinder body, the oil cylinder cover comprises a cylinder cover body, a plurality of oil cavities are formed in the cylinder cover body, and the oil cavities communicate with one another; the first buffer plugs and the second buffer plugs are mounted in different oil cavities; the connecting rod is fixedly connected to the side, close to the piston, of the first buffering screen and penetrates through the cylinder cover body. The abutting plate is fixedly connected to the end, extending out of the cylinder cover body, of the connecting rod and is annular. The first compressed spring is installed in the oil cavity, and one end of the first compressed spring is fixedly connected to the side, away from the connecting rod, of the first buffer plug. According to the hydraulic cylinder, buffering and force releasing can be effectively conducted on the piston, collision damage between the cylinder cover and the piston is reduced, and the service life of the hydraulic cylinder is prolonged.

The invention relates to the technical field of deep sea steel truss type net cage structures, in particular to a variable-diameter float type deep sea aquaculture net cage with a similar biological joint connecting structure. Each variable-diameter buoy is connected to the vertex of the polygonal net cage unit, the diameter of the lower portion of each variable-diameter buoy is larger than that of the upper portion of the variable-diameter buoy, the bottom end of the lower portion of each variable-diameter buoy is connected with the end of an anchor chain through a chain locker, and the other end of the anchor chain is connected with a gravity anchor. At least three polygonal net cage units are arranged in a circumferential mode, at least one floating cross beam is connected between every two adjacent polygonal net cage units, and the two ends of each floating cross beam are connected with the corresponding variable-diameter floating pontoons at the ends of the floating cross beam through the corresponding biological-like joints respectively. The design mode that the diameter of the variable-diameter buoy is small in the upper portion and large in the lower portion reduces the stress area of the waterline face of the component, the impact strength of wave loads on the structure is remarkably reduced, and the wave stability in the deep sea environment is improved.

The application relates to the technical field of array antennas, in particular to a 5G high-gain array antenna, one end of each fixed plate is fixedly connected with a protective cover, each protective cover is fixedly connected with an antenna body, the inner wall of each protective cover is fixedly connected with a linear motor, the output end of each linear motor is fixedly connected with a telescopic wave-absorbing peg array piece through a connecting shaft, each telescopic wave-absorbing peg array piece is located on the outer side of the corresponding antenna body, and a plurality of heat dissipation scales are connected on each protective cover along the axial line direction at equal intervals. After the linear motor is started, the telescopic wave-absorbing peg array piece is driven to move through the connecting shaft, the equivalent dielectric constant in the protective cover is changed after the telescopic wave-absorbing peg array piece moves, the resonance condition is destroyed, the standing wave distribution is disturbed, the resonance cavity effect cannot be formed in the protective cover, the effective radiation power cannot be reduced, the covering radius cannot be reduced, and the signal transmission quality is improved.