30results about How to "Weak elasticity" patented technology

The blade structure for the centrifugal fan comprises a rotating body, blade units and a reinforcing piece, and the blade units are arranged around the outer wall of the rotating body in an annular array mode; each reinforcing piece is located between every two adjacent blade units, and the two ends of each reinforcing piece are connected with the corresponding two adjacent blade units correspondingly. Each blade unit comprises a first blade, a second blade and a connecting part, a gap for containing the connecting part is formed between the first blade and the second blade, and the first blade and the second blade are connected with the two opposite side edges of the connecting part respectively. And the first blades and the second blades extend in opposite directions along the axial direction of the rotating body. The blades of a traditional integrated structure are divided into the first blades and the second blades, so that the blades are layered up and down, airflow is divided into smaller parts, the pressure and friction force of each airflow unit are reduced, and the performance of the fan is improved.

The invention discloses an adjustable tree pruning device based on a ratchet wheel, and relates to the technical field of forestry maintenance tools. In order to solve the problems that when a pair of traditional pull rope type high branch shears is used for shearing thick branches, large instantaneous tension is needed, the displacement is difficult to maintain due to easy rebounding in the shearing process, and a ratchet wheel labor-saving structure is often difficult to quickly unlock and reset after being locked, a shearing head is arranged at one end of a main body, and comprises a movable cutter and a fixed cutter; a handle is arranged at the other end of the main body, a cutting pull rope and an unlocking pull rope are connected to the handle, the cutting pull rope pulls the movable cutter to be closed through a line concentration wheel to achieve shearing, and a pawl and a ratchet wheel are meshed to lock the returning direction so as to achieve segmented accumulation propelling; when resetting is needed, the unlocking pull rope is pulled to drive the limited connecting block to move and compress the reset spring, the ratchet wheel moves relative to the pawl to be disengaged and unlocked, the reset spring pushes the ratchet wheel and the connecting block to reset and be engaged again after unlocking, and the movable cutter is opened under the action of the rotating shaft spring.

The utility model relates to earphone technical field discloses an ear clip type earphone, including host computer subassembly and elastic ear block, host computer subassembly includes host computer casing and connecting portion, connecting portion is located host computer casing one end, and with host computer casing integral forming, elastic ear block is located connecting portion away from host computer casing one end, and elastic ear block with connecting portion between be equipped with the fixed structure of snap -on connection. Through integral type structure's host computer subassembly and elastic ear block connection, strengthened earphone whole's mechanical stability and reliability, and elastic ear block preferably soft glue or memory sponge material, can in long -term use, bear frequent deformation and restore and not easy to appear material inside microstructure damage, simultaneously, adopt the elastic ear block of soft glue or memory sponge material, can make more close ear, not easy to drop, and soft glue or memory sponge material can also improve the wearing comfort of user, thereby improve the user's use experience feeling.

The application discloses an inorganic composite solid electrolyte and a preparation method thereof, and relates to the technical field of lithium batteries, and specifically discloses an inorganic composite solid electrolyte and a preparation method thereof. The preparation method of the inorganic composite solid electrolyte comprises the following steps: S1, mixing lithium salt, metal oxide A, metal oxide B and ammonium dihydrogen phosphate, wherein the metal oxide B is titanium oxide, and intermittent vibration ball milling is performed to obtain mixed powder; S2, adding lanthanum oxide and germanium oxide into the mixed powder obtained in the step S1, and continuing to perform intermittent vibration ball milling to obtain composite powder; and S3, performing low-temperature sintering on the composite powder obtained in the step S2, and pressing to obtain an inorganic composite solid electrolyte film layer. The preparation method can significantly improve the reaction activity and synergistic effect among raw materials by adopting two-step intermittent vibration ball milling and one-step low-temperature sintering, and the conductivity of the inorganic composite solid electrolyte and the lithium ion transmission performance and cycle life of the solid battery are improved, and meanwhile, no solvent is used in the preparation process, and the sintering cost is reduced.

The invention discloses a complex workpiece intelligent full-dimensional spraying device and method based on independent multi-axis linkage. The complex workpiece intelligent full-dimensional spraying device comprises a workpiece rotating mechanism, a spraying mechanism and a control mechanism, wherein the workpiece rotating mechanism is used for driving a to-be-sprayed workpiece to rotate at a set speed; a plurality of guide rail brackets; the independent spraying unit comprises a Z-axis linear module, a Z-axis linear module and a Z-axis linear module; the Z-axis linear module is mounted on the guide rail bracket; the Pitch axis driving mechanism is mounted on the Z-axis linear module in a sliding manner; the nozzle is arranged at the tail end of the Pitch shaft driving mechanism; and the controller is in signal connection with the Z-axis linear modules and the Pitch-axis driving mechanism, so that the motion trails of all the nozzles are distributed in a sine wave shape in space and time. The reciprocating machine has the beneficial effects that compared with a traditional reciprocating machine, wave motion is matched with workpiece autorotation to form multiple spiral coatings, powdering is more uniform, the film forming speed is higher, and the unit time coverage area and the coating uniformity are improved.

The invention discloses movable assembly type high-degree-of-freedom dieless double-sided incremental forming equipment and method. The equipment comprises two groups of forming units, namely a first forming unit A and a second forming unit B, the first forming unit A and the second forming unit B can be assembled together during use and can be detached after use, and the first forming unit A and the second forming unit B are both of a foldable storage structure; the foldable industrial mechanical arm forming units capable of cooperatively working are arranged on the two sides of the vertically-fixed to-be-machined plate, synchronous or cooperative incremental forming of the front face and the back face of the plate is achieved, the forming precision is improved, springback is reduced, the thickness distribution of the plate is improved, and therefore the forming requirements of complex curved surfaces and high-performance plates are met. The double-sided forming equipment is designed to be of a detachable and assemblable modular structure, so that the equipment can be packaged in a storage state in the transportation and deployment process and can be quickly unfolded and spliced on the use site, and the maneuverability and the application flexibility of the equipment are remarkably improved.

The utility model discloses an anti-climbing crib, which belongs to the field of cribs and comprises a crib board, a loop bar is fixedly connected to the upper surface of the crib board, a woven mesh is fixedly connected to the bottom of the inner side wall of the loop bar, a protection mechanism is fixedly connected to the middle of the inner side wall of the loop bar, and adjusting rods are fixedly connected to the periphery of the bottom of the crib board. The outer surface of the adjusting rod is sleeved with a sleeve, the bottom of the sleeve is fixedly connected with a damping mechanism, the protection mechanism comprises a folding plate, and the other side of the folding plate is fixedly connected with a connecting block. Through cooperative use of all the devices, the protection function can be added to the baby crib through the arranged protection mechanism, the protection mechanism is pulled upwards or downwards, the protection mechanism is adjusted to the proper height and fixed according to the needed protection height, the applicability can be improved, personnel operation is facilitated, and convenience is improved; and the baby can be prevented from climbing out of the bed, so that the injury caused by climbing and falling can be reduced.

This utility model discloses a tube bending machine for vehicle frame production, including a base platform and a support frame fixed on top of it. A first cylinder is mounted on the top of the support frame and is connected to a forming mold located below the support frame. The base platform has forming wheels that cooperate with the forming mold. It also includes a heating mechanism, a tube fixing mechanism, and a cooling mechanism. The heating mechanism includes a movable seat, a second cylinder, a guide rail, and an electromagnetic heating component. The movable seat is slidably mounted on the side of the base platform via the guide rail. The second cylinder drives the movable seat to move in a direction closer to and away from the tube fixing mechanism. The electromagnetic heating component is fixed on the movable seat. The movable electromagnetic heating mechanism locally heats and softens the part of the tube to be bent, reducing bending resistance. Combined with the cooling mechanism, it quickly shapes the tube, reducing material springback and surface cracks, significantly improving the bending accuracy and yield of high-hardness tubes. At the same time, the integrated process shortens the tube processing cycle.

This utility model relates to a thread grinding machine, including a base, a chuck and a tailstock for clamping workpieces, and a horizontally movable wheel frame. A grinding wheel spindle and a drive motor are mounted on the wheel frame. A material discharge hole is formed on the upper surface of the base between the chuck and the tailstock. A funnel-shaped material collection bin with openings at both the top and bottom is installed at the bottom of the material discharge hole. A cleaning brush adapted to the inner wall of the material collection bin is installed inside the bin. The cleaning brush is connected to the base via a horizontal slide, and one end of the cleaning brush is connected to the wheel frame. The cleaning brush moves synchronously with the wheel frame, cleaning debris adhering to the inner wall of the material collection bin. This utility model, by providing a material discharge hole on the base and installing a funnel-shaped material collection bin, utilizes the horizontal movement of the wheel frame to drive the synchronous movement of the cleaning brush, achieving periodic cleaning of the inner wall of the material collection bin, effectively avoiding equipment failure and reduced machining accuracy caused by debris accumulation.

This utility model belongs to the field of needle-punched nonwoven fabric processing technology, and in particular to a constant tension control mechanism for a winding roller of a roll forming machine. It includes a base plate, on the upper surface of which a housing, a constant tension control device, and two temperature sensors are fixedly connected. The housing covers the constant tension control device and temperature sensors. A tube frame is installed inside the housing. Two sets of rotating rods are rotatably connected to the inner wall of the housing. A water chiller is installed on the right side of the housing. The output and input ends of the water chiller penetrate the housing and are fixedly connected to the outer surface of the tube frame. Two sets of electric push rods are fixedly connected to the inner top wall of the housing. By setting up the housing and the water chiller, a circulating cooling system is formed using the water chiller and the tube frame. Simultaneously, the combined design of the electric push rods and electric heating tubes allows for flexible adjustment of the heating position and intensity according to actual needs, effectively regulating the temperature environment inside the housing and reducing the impact of temperature fluctuations on the material's elastic modulus and the roller's friction coefficient.

The utility model discloses a pipeline argon filling welding protection device which comprises two protection units. The protection unit comprises a ventilation pipe, a guide ring arranged at one end of the ventilation pipe and a positioning frame arranged at the other end of the ventilation pipe. An elastic sealing ring is arranged on the periphery of the guide ring; an annular groove is formed in the outer wall of the guide ring; the elastic sealing ring is connected in the annular groove in a sliding manner; the guide ring is provided with a first joint; three adjusting screws are arranged on the periphery of the positioning frame; and the adjusting screw is in threaded connection with the positioning frame. An argon protection cavity is formed in the position between the two welding pipes, operation is easy and convenient, and the welding quality and efficiency can be improved; the protection device is firmly fixed on the pipe wall by adjusting the screw, so that the protection device is prevented from loosening and displacing; and meanwhile, the guide ring provides guiding and supporting effects for the elastic sealing ring, the sealing effect between the elastic sealing ring and the pipe wall is improved, and the service life of the elastic sealing ring is prolonged.

The invention discloses a low-carbon automatic control method and system for the whole process of tunnel excavation and supporting, and the method comprises the steps that a controller issues a dual-energy-gathering smooth blasting hole distribution and charging control instruction to an excavation execution mechanism according to preset excavation contour parameters, the excavation execution mechanism executes blasting operation according to the corresponding control instruction, and the excavation contour parameters are determined according to the blasting operation; forming an excavation outline; according to an excavation outline, a support spraying area is divided into five subareas, a controller issues a spraying sequence instruction to a spraying execution mechanism according to a preset subarea execution sequence, and the spraying execution mechanism conducts real-time leveling and compactness control through a flexible scraper; the three-dimensional laser scanning module collects three-dimensional point cloud data of the surrounding rock and the support forming surface after jet support and transmits the three-dimensional point cloud data to the controller, and the controller compares the three-dimensional point cloud data with the BIM model and calculates the back break amount and the support deviation; and the controller adjusts the concrete supply plan, the deslagging scheduling and the mechanical energy consumption according to the back break amount and the support deviation.

The invention relates to the technical field of thermal interface materials, and discloses an elastic thermal interface material suitable for electronic packaging and a preparation method thereof. Comprising the following operation steps: step 1, uniformly dispersing heat-conducting insulating powder in a solvent to obtain a heat-conducting insulating powder dispersion liquid; carrying out freeze casting and freeze drying to obtain a heat-conducting aerogel skeleton; step 2, slowly dropwise adding a polydimethylsiloxane solution into a container filled with the heat-conducting aerogel skeleton along the wall, standing at room temperature after reaching a saturated state, and curing under a high-temperature condition to obtain an elastic thermal interface material; the heat-conducting insulating powder is boron nitride; the solid content of the heat-conducting insulating powder dispersion liquid is 5-20wt%. The elastic thermal interface material prepared in the scheme has good thermal conductivity and mechanical properties.

The utility model relates to the technical field of crushing element structures of crushers, and discloses a tooth hammer for a column crusher and the column crusher. The tooth hammer for the column crusher comprises an annular hammer body, hammer heads are arranged on the outer side wall of the annular hammer body, the hammer heads are arranged in the radial direction of the annular hammer body, the multiple hammer heads are arranged in the circumferential direction of the annular hammer body at intervals, and hard alloy blocks embedded into a base body facing the annular hammer body are arranged on the crushing working face of the hammer heads. And the hard alloy block is provided with an exposed surface which is exposed towards the crushing working surface of the hammer head. The hard alloy block is embedded in the hammer head, so that the crushing efficiency, the wear resistance and the reliability of the tooth hammer are effectively improved, the operation cost and the maintenance difficulty are reduced, the overall performance of the column crusher is improved, and the service life of the column crusher is prolonged. The original appearance and shape of the tooth hammer are not greatly changed and influenced, so that the tooth hammer is good in universality, convenient to widely popularize and apply and suitable for crushing high-strength and high-hardness materials.

The invention provides a method and system for controlling the blowing stability of a converter matched with high-oxidability solid waste. The method comprises the steps that a high-oxidability solid waste ball pressing raw material and molten iron are added into a converter molten pool; blowing oxygen into the converter molten pool by using an oxygen lance, and blowing the high-oxidability solid waste pellet raw material and the molten iron; in the blowing process, the foaming characteristic of slag in the converter molten pool is monitored, and when the foaming characteristic reaches a preset threshold value, the oxygen lance is lifted to the outside of the converter mouth so as to stop oxygen blowing; and after the oxygen lance is lifted, high-pressure nitrogen is immediately blown into the converter molten pool through the same oxygen lance, so that a nitrogen protective atmosphere is formed in the converter molten pool, the reaction rate of carbon and ferric oxide in the slag is reduced, and foaming and splashing of the slag are inhibited. Continuous oxygen supply is replaced with short-time, fixed-point and high-pressure nitrogen, and safe and high-yield smelting of high-oxidability solid waste is achieved.

This invention discloses an automated cutting system based on aluminum alloy production, belonging to the field of aluminum alloy profile processing technology. The system includes a mechanical execution layer, a sensing and detection layer, and an intelligent control layer. Addressing the problems of lag in feed control and lack of mechanical basis for attitude selection in cutting complex cross-section profiles, this invention uses a multi-axis attitude optimization control unit to calculate the relationship between the profile cross-section moment of inertia and cutting force, selecting the optimal attitude with minimal deformation. A collaborative controller drives a cross-section topology analysis unit to generate a cross-section feature sequence based on the optimal attitude. A feed rate adaptive control unit establishes a forward-looking window based on this sequence, predictively adjusting the rate before the saw blade contacts the wall surface or cavity features. This invention eliminates response lag through feedforward control and reduces profile deformation through mechanical optimization, significantly improving the cutting quality and accuracy of aluminum profiles.

The application discloses a laminating process method of a surface-gluing stator core. The method stacks multiple surface-gluing stator punching sheets with heat-curable adhesive layers to form a punching sheet group, heats the punching sheet group under a first axial pressure, and obtains variation data of a laminating height with time to determine a compression flow index; the high pressure is avoided from being applied before the compression flow index reaches a peak value, and a second axial pressure is applied to perform 2-8 times of pulsed short-time compaction when the compression flow index decreases from the peak value to a preset ratio; meanwhile, the boundary region and the main body bonding region of the punching sheet group are subjected to differential temperature control, so that the temperature of the boundary region is lower than that of the main body bonding region. After the pulsed short-time compaction, the differential temperature control is reduced or removed, and the heat preservation and curing and pressure maintaining and cooling shaping are performed. The method can control the pressure switching according to the actual flow state of the adhesive layer, reduces the risk of adhesive overflow at the end face, the inner circle, the outer circle and the tooth groove, and improves the laminating stability and forming quality of the surface-gluing stator core.

The utility model discloses a game device, including game table body and support frame, game table body sets up on support frame, game table body includes high end and low end, wherein, the end far from user is high end, and the end close to user is low end, game table body still includes game table top and game star disc, game table top includes control area, hand line, scoring area, hand line sets up between control area and scoring area, at least one game star disc sets up in scoring area, and game table top is inclined plane or curved surface. Through the table body structure of no frame and the inclined plane or curved surface game table top, increase the difficulty and the entertainment of game, through setting up the game star disc into the separate of the fender and the scoring board can effectively avoid the interference of the projectile through the impact fender to other players on the scoring board score, ensure the fairness of the game, set up the buffer structure on the scoring board, the fender, the elbow table and the frame, can effectively reduce the rebound force and the jump of the projectile, ensure the safety of the game.

This invention proposes a low-shrinkage photocurable elastic resin composition based on synergistic compensation and its application. The resin composition has low viscosity and excellent photocurable printing properties. During molding, the non-reactive diluent is volatilized first by a simple stepwise heating of the printed model, and then the temperature is raised to the foaming temperature to cause the thermally expanding microspheres to expand and foam. At this temperature, the chain extender is further condensed. Through the synergistic effect of the non-reactive volatile diluent and the thermally expanding microspheres, physical compensation for curing shrinkage is achieved, which can meet the requirements of both low shrinkage and high elasticity. The method is simple and easy to implement and suitable for industrial applications.

The utility model discloses a rapid single-phase bypass vacuum contactor, which comprises a permanent magnet driving mechanism, a static end conductive copper bar, four insulating support columns, a fixed plate, a vacuum arc-extinguishing chamber, an insulator, a pressure adjusting screw rod, a torque conversion crank arm and a manual switching crank arm, the four insulating support columns, the fixed plate and the magnetic cylinder upper cover form a fixed frame, the fixed plate above the frame is provided with a static end conductive copper bar and a vacuum arc-extinguishing chamber, and the opening maintenance is a design thought scheme adopting permanent magnet maintenance. Closing holding is performed through the self-closing force of the vacuum arc-extinguishing chamber and the force of the four contact springs and the auxiliary springs. According to the utility model, a manual mode is adopted for opening, and during opening, the manual opening mechanism is manually pushed towards the opening indication direction.

The application provides an aero-engine fan bird impact test protection and epidemic prevention integrated device, and belongs to the technical field of aero-engines, which comprises a base and a protection and epidemic prevention device frame, the frame is provided in a cylindrical frame structure, one end of the frame in the axial direction is provided in an open manner and faces the bird body incident direction, the other end of the frame in the axial direction comprises a plurality of fan-shaped sub-frames, the protection and epidemic prevention device frame periphery comprises a plurality of square sub-frames with an arc, each fan-shaped sub-frame is provided with a protection and epidemic prevention axial unit, each square sub-frame is provided with a protection and epidemic prevention circumferential unit, each unit comprises a steel bottom layer, a safety energy absorption layer and a main capture layer which are sequentially arranged from the outside to the inside in the radial direction, and the steel bottom layer is detachably connected with the protection and epidemic prevention device frame; the protection and epidemic prevention device frame accommodates a fan test piece inside, the driving shaft of the fan test piece penetrates through the other end of the protection and epidemic prevention device frame in the axial direction and is connected with a fan driving device. The application has high protection reliability, complete epidemic prevention, effectively blocks the pollution source and is convenient and economical to maintain.

The invention discloses a forming device and method based on integration of multi-coil eddy current enhancement and electromagnetic blank pressing. The forming device mainly comprises a fixed mold, a center coil assembly is installed in the center of the fixed mold, a first coil assembly and a second coil assembly are arranged on the outer side of the center coil assembly, and the coil diameter of the center coil assembly is larger than that of the first coil assembly and that of the second coil assembly; the central coil assembly is connected with the main output end of the power system pulse circuit, and the first coil assembly and the second coil assembly are connected with the auxiliary output end of the power system pulse circuit; a metal plate to be formed is fixed above the female die and right faces the first coil assembly, the center coil assembly and the second coil assembly. According to the forming device and method based on integration of multi-coil eddy enhancement and electromagnetic blank pressing, the forming depth is increased on the premise that the total input energy is not remarkably increased, and meanwhile the magnetic field distribution is optimized to improve the forming quality.

The utility model provides a lobby self-service equipment hood. The lobby self-service equipment hood comprises a hood body, an anti-collision strip is detachably connected to the edge of the outer side of the hood body, a maintenance door is hinged to the rear end of the hood body in an embedded mode, a handle is arranged on the outer side of the maintenance door in an embedded mode, a filter plate is installed in the maintenance door in an embedded mode, and a limiting block is arranged on the outer side of the filter plate in an embedded mode. According to the lobby self-service equipment hood, the structures such as the anti-collision strips are arranged, the anti-collision strips are made of rubber, collision impact force is absorbed through elastic deformation, the equipment damage risk is reduced, and the service life is prolonged; the detachable design is convenient to install and replace, the maintenance cost is reduced, the filter plate is installed in the maintenance door, air can be efficiently filtered, dust and sundries are prevented from entering equipment, faults such as poor heat dissipation and short circuit are reduced, meanwhile, the filter plate is detachably connected with the through groove, a rebounding device and a limiting block are matched, disassembly, cleaning and replacement are convenient, the fixing effect is enhanced, and the service life is prolonged. And stable operation of equipment is ensured, and the use performance of the equipment in a complex environment is guaranteed.

The utility model relates to a guide plate device, a transportation system and a packaging machine. The inlet guide plate comprises two opposite ends in the first direction, and one end of the inlet guide plate is rotatably installed on the fixing support; the spring plate comprises two opposite ends in the first direction, one end of the spring plate is installed on the fixing support, and the other end of the spring plate is in follow-up connection with the middle of the inlet guide plate or the end, away from the fixing support, of the inlet guide plate. When the inlet guide plate rotates relative to the fixed support, the spring plate is driven to deform relative to the fixed support, so that elastic force is reversely applied to the inlet guide plate through the spring plate, and the inlet guide plate can be completely attached to a cigarette packet through the elastic force. Therefore, the tobacco bale can be fully compacted, heated and dried in the channel of the lifting beam frame, the phenomenon that the tobacco bale is popped off or broken due to poor adhesion after being output is reduced, and the product quality is guaranteed.

The utility model discloses a special fire-retardant system for hydrogen combustion energy equipment, which relates to the technical field of fire-retardant equipment and comprises a first shell, a second shell, a connecting sleeve, a movable sliding plate, an elastic buffer piece and a fire-retardant filter element, one end of the connecting sleeve is hermetically connected with the first shell, and the other end of the connecting sleeve is hermetically connected with the second shell. The movable sliding plates are arranged in the connecting sleeves in a sliding mode, the elastic buffering pieces are arranged between the corresponding movable sliding plates and the connecting sleeves, through grooves are formed in the two ends of each movable sliding plate, and the fire-retardant filter elements are fixedly arranged in the corresponding through grooves. By means of the movable sliding plate and the elastic buffering piece, impact force generated by hydrogen flash explosion or combustion is effectively relieved, impact on the fire-retardant filter element is reduced, the risk that the filter element is bounced off or disengaged from the installation position is reduced, and the stability and reliability of the fire-retardant system are guaranteed. Even under the impact condition, the fire-retardant filter element can be kept relatively stable, and the sealing and blocking effects of the flame arrester are ensured.

The invention discloses a demulsifier and a preparation method thereof, and belongs to the technical field of demulsifiers. The preparation method of the demulsifier comprises the following steps: adding ferric trichloride hexahydrate, sodium acetate and polyethylene glycol into a polyol solvent, uniformly mixing at 60-80 DEG C, then adding bentonite, carrying out ultrasonic dispersion for 20-40 minutes, then reacting at 180-250 DEG C for 20-30 hours, washing and drying; carrying out ultrasonic dispersion on the obtained magnetic bentonite in an organic solvent for 15-30 minutes, adding a silane coupling agent, stirring for 6-10 hours at 70-85 DEG C, collecting a magnet, washing and drying; and carrying out ultrasonic dispersion on the obtained silanized magnetic bentonite in an organic solvent for 15-30 minutes, dissolving an acrylate copolymer demulsifier and a sulfonate demulsifier in the organic solvent, then adding 4-dimethylaminopyridine, carrying out ultrasonic dispersion for 10-20 minutes, then adding into a silanized magnetic bentonite solution, stirring for 4-6 hours at 85-110 DEG C, and carrying out magnet collection, washing and drying, so as to obtain the water-soluble magnetic bentonite. The demulsifying agent is obtained. The demulsifier is safe and environment-friendly, and can repeatedly and efficiently realize demulsification.

This invention discloses a material discharge device for a belt conveyor, relating to the field of belt conveyor technology. It includes a first conveyor belt; a protective cover is provided on the upper part of the first conveyor belt; a material discharge pipe is fixedly connected to the bottom end face of the protective cover; a three-way material discharge frame is fixedly connected to the bottom end face of the material discharge pipe; a first chute is fixedly connected to the lower left part of the three-way material discharge frame; and a second chute is fixedly connected to the lower right part of the three-way material discharge frame. The arrangement of the first and second material-blocking rails creates a material accumulation area on the first or second mounting steel plate, absorbing the vibration generated during material impact. Furthermore, the first and second buffer blocks further absorb the vibration generated by the impact, solving the problem that large-particle bulk materials contain enormous kinetic energy, easily causing significant impact on the barrier plate when falling onto it, leading to vibration and thus significant noise.

The application belongs to the technical field of cable crimping, and particularly relates to a crimping device for automobile wire harness cable, which comprises a fixing frame, a crimping table, locking bolts, a preheating type pressing mechanism and a slow-recovery type crimping mechanism. The crimping table is arranged on the upper wall of the fixing frame, the locking bolts are arranged at one end of the fixing frame and are in threaded connection with the fixing frame, the preheating type pressing mechanism is arranged on the upper wall of the crimping table, and the slow-recovery type crimping mechanism is arranged on the preheating type pressing mechanism. The preheating type pressing mechanism comprises a pressing assembly, a heating assembly and a preheating assembly. The crimping device for automobile wire harness cable can preheat the terminal before crimping and detect the crimping effect between the terminal and the cable after crimping.

A thrust foil bearing wave foil stamping forming multi-objective optimization method, comprising: 1, the three-dimensional model of wave foil is introduced into stamping simulation software to design process scheme, and the stamping die is designed; 2, the influence of the change of different process parameters on the thinning rate and the springback amount of wave foil is researched, and the reasonable change range of each is obtained; 3, sample points are selected for parameter combination design, the parameter combination is simulated, and the wave foil thinning rate and springback amount data corresponding to each parameter combination are obtained; 4, the response surface function between different process parameters and the thinning rate and the springback amount is established, and verified; 5, the minimum thinning rate and springback amount are taken as the target, the reasonable range of different process parameters is taken as the constraint, and the multi-objective optimization algorithm is used to solve the optimization model, and the optimal process parameter combination is obtained; 6, the optimal process parameter combination is verified. The application can solve the technical problem that the existing technology cannot realize the comprehensive intelligent control of the coupling target of "thinning-springback".

The invention relates to a cold-press forming and heat treatment method for a spherical composite metal plate. The method comprises the steps of cold-press forming of the spherical composite metal plate, detection after cold-press forming, charging and heat preservation of a heat treatment part, discharging and air cooling of the part, and inspection after heat treatment. The plate is subjected to annular cold pressing from the edge to the center according to preset parameters in stages, gradual uniform plastic deformation of the plate is achieved, and local stress concentration and elastic resilience are remarkably reduced. And in combination with detection after cold pressing forming, the problems that precision control is difficult and the rebound amount is large in the spherical composite metal plate machining process are fundamentally solved. And meanwhile, the heat treatment process is optimized, the residual stress of the spherical composite metal plate is fully released, and then the forming precision and the surface quality of the spherical composite metal plate subjected to heat treatment are improved.