27results about How to "Reduce shear force" patented technology

According to the semiconductor product processing equipment and the mist discharging system, the mist discharging fan is connected with the rack through the damping mechanism, vibration of the mist discharging fan can be effectively prevented from being transmitted to the rack, the machining precision can be improved, the damping mechanism can adopt different structures according to needs, and when a connector is adopted, the connector is connected with the mist discharging fan through the damping mechanism. The connector is connected to the top of the first supporting rod through the first damping connecting base and connected to the bottom of the second supporting rod of the rack through the second damping connecting base, the second supporting rod can effectively limit the connector, and the problem that the connector topples due to the fact that the mist discharging fan is arranged on the first side of the connector is solved; shear force borne by bolts for connecting the first and second damping connecting seats with the first and second supporting rods is reduced, and the structural stability and safety of the damping structure are effectively guaranteed. When the bracket is adopted, the structure is simple, and a two-stage damping structure is adopted, so that the vibration of the fog exhaust fan can be isolated from the rack to the greatest extent, and the influence on the main shaft is avoided.

A kind of TiAl alloy shaped blank package rolling method of imitating asynchronous rolling and TiAl alloy plate, the method comprises the following steps: preparing TiAl alloy shaped blank; The prepared TiAl alloy shaped blank is placed in the recess of corresponding stainless steel package, a composite isolation layer is filled between the TiAl alloy shaped blank and the outer layer stainless steel package, and welding is carried out, to obtain the TiAl alloy package blank of imitating asynchronous rolling;The obtained TiAl alloy package blank of imitating asynchronous rolling is placed in high temperature furnace, heated to 1100-1350 DEG C, and kept for 0.5-5h, then package rolling is carried out along the specified direction, and after every two passes, it is returned to the furnace and kept for 5-30min, after rolling, the rolled TiAl alloy package plate is placed in vacuum furnace for stress relief annealing;And the package shell on the rolled TiAl alloy package plate is removed by wire cutting method, to obtain TiAl alloy plate with deformation≥90%.The application also provides TiAl alloy plate prepared by the method.

The drilling tool comprises a drill bit, the drill bit is provided with a cylindrical shell, the bottom edge of the cylindrical shell is fixedly connected with a plurality of diamond drill bits, the top of the cylindrical shell is narrowed inwards and provided with a connecting part, and the connecting part is used for being connected with a drilling machine. A plurality of spiral sheets are uniformly arranged in the drill bit and are matched to form a continuous spiral flow guide channel, the disturbance is low, specifically, the spiral iron sheet is segmented, the shearing force to sludge during rotation is reduced by 40%-60%, and the layering definition of a sample is improved; rapid preparation is achieved, drilling tool assembly can be completed within 2 hours through a standardized welding assembly, and the cost is extremely low; the spiral design is beneficial to continuous sampling of samples and can prevent the samples from slipping off in the lifting process; environmental adaptability: the device is highly adaptive to a drilling tool, and is at least suitable for rivers, lakes, reservoirs and the like with the water depth of 30 m or less and the sludge thickness of 20 m at present through actual operation.

The application provides a pickling purification method of porous carbon for silicon-carbon negative electrode materials and a product thereof, and belongs to the technical field of battery material preparation. The method overcomes the defects of poor purity and long process flow of the existing pickling method. The production method comprises the following steps: crushing carbonization raw materials to 20-50 meshes, and then performing physical activation. The method further comprises the steps of "blowing and stirring cleaning" and "belt rinsing while simultaneously performing vacuum exhaust and controlling the water content to be 60%". The porous carbon is deeply and efficiently purified, so that the iron content and ash content of the porous carbon are reduced to a very low level (Fe<30ppm, ash content<0.2%), and the high-pore structure (iodine value≥1600mg / g) of the porous carbon is maintained. The unique blowing and stirring method has smaller shearing force on the carbon skeleton, and better protects the microstructure of the porous carbon. The belt rinsing is continuously operated, and has high automation degree, and is suitable for large-scale industrial production. The porous carbon product prepared by the method has very high purity and high specific surface area, and meets the needs of high-end lithium ion batteries.

The present application relates to plastic bottle crushing technical field, disclose a kind of regenerative polyester bottle piece production equipment, comprising: plastic bottle crusher, plastic bottle crusher has crushing chamber, the bottom of crushing chamber is provided with crushing immersion module;Crushing immersion module includes folding liquid storage basin, heating module, lifting control module and discharge module;Folding liquid storage basin is set in the bottom of crushing chamber, folding liquid storage basin is preloaded with liquid inside, heating module is set in folding liquid storage basin, for liquid is heated to 70 DEG C to 80 DEG C;Lifting control module is set in the bottom of folding liquid storage basin, for driving folding liquid storage basin vertical direction lifting movement;Discharge module includes receiving conveyor, and a plurality of mesh holes are distributed on receiving conveyor;The liquid in folding liquid storage basin is heated to 70 DEG C ~ 80 DEG C by heating module, and hot liquid is immersed upward to waste plastic bottle through the mesh hole of receiving conveyor, so that plastic bottle is fully softened to vitrification transition temperature interval before crushing.

The utility model discloses an ox horn glue feeding structure without air marks on a plastic mold. The inner diameter of the end part, close to a cavity, of an underflow channel is gradually reduced, and the underflow channel is formed by smoothly connecting a plurality of sections of cambered surfaces and inclined surfaces. According to the utility model, the cambered surface sections and the inclined surface sections are arranged at the glue injection end part in the oxhorn-shaped underflow channel at intervals, so that the glue can be guided to steer for multiple times, the flow velocity of the glue can be gradually reduced, the impact force of high-pressure glue on the inner wall of the underflow channel can be gradually reduced, and the glue injection port of the underflow channel can keep stable dimensional accuracy for a long time; therefore, the stable forming quality is ensured; the side wall is vertically arranged on one side of the glue injection port, so that the shearing force of the mold to the glue liquid injected into the cavity can be reduced to the greatest extent, the generation of gas marks at the glue inlet is eliminated or reduced, and the large inner diameter ratio of the two opening ends of the ox horn runner and the two end parts of the slow flow part can ensure that enough glue liquid is injected into the cavity in unit time, so that the production efficiency is improved. The forming defects such as insufficient injection, internal bubbles and white points are avoided, and the forming quality is improved.

This application discloses a post-knee joint exercise device, including a base component, an adjustment component, and a support component. The base component includes a base plate with several positioning ribs on its top. The adjustment component is located on the top of the base plate, in front of and behind the positioning ribs. The adjustment component includes a fixed seat arranged laterally along the base plate. A guide rod is provided on the top of the fixed seat, and a slider is slidably mounted on the guide rod. The slider slides along the length of the guide rod, and a pulley is provided on the top of the slider. The support component includes a folding plate, comprising a first plate body and a second plate body. The first plate body is located to the right of the second plate body, and its right end is swayably connected to the right side of the top surface of the base plate. A rotating rod is provided on the left end face of the first plate body, and a traction rope is provided on the front side of the rotating rod. The other end of the traction rope passes sequentially through the front pulley and the rear pulley, and is connected to the rear side of the rotating rod. This device can reduce shear forces during rehabilitation exercises.

The utility model provides an aneurysm embolism device with a spring ring integrated with an umbrella-shaped dense net. The aneurysm embolism device comprises a spring ring body, a central connecting rod and a metal woven dense net, one end of the spring ring body is connected with the central connecting rod through a micro rivet; the metal woven dense net is of an umbrella-shaped structure, and the tail ends of net wires in the center of the metal woven dense net are axially bundled and fixed in a lantern ring in the center through welding. The lantern ring is fixedly welded to the end, away from the spring ring body, of the center connecting rod. According to the integrated umbrella-shaped dense net spring ring system, the traditional embolism technology and the blood flow guiding concept are creatively combined, the dense net structure serves as a physical barrier and can effectively prevent the spring ring from shifting, and the precise net hole design can remarkably change the hemodynamic characteristics of the tumor neck; in addition, due to the integrated design, the surgical operation process is simplified, and the technical difficulty is reduced. The innovative design concept not only solves the key technical problem in the treatment of the wide-neck aneurysm, but also remarkably improves the safety and reliability of the treatment.

The utility model relates to the technical field of stirring kettles, and discloses an adjustable turbulent flow stirring kettle which comprises a stirring kettle body, a middle convex bottom sleeve is arranged at the inner bottom end of the stirring kettle body, a stirring shaft is rotatably mounted in the stirring kettle body, a convex cylinder is fixedly sleeved on the outer surface of the stirring shaft, and the convex cylinder is fixedly sleeved on the outer surface of the stirring shaft. A plurality of inclined paddles are annularly and fixedly connected to the outer surface of the convex cylinder, pin blocks are rotationally connected to the sides, away from each other, of the inclined paddles, and flow pushing toothed plates are fixedly connected to the bottom ends of the pin blocks, so that irregular swing is formed in high-viscosity fluid through the synergistic effect of folding stirring blades and multiple groups of flow guiding paddles, the shearing force is remarkably reduced, and the stirring efficiency is improved. And meanwhile, the inclined paddle at the bottom is linked with the plug flow toothed plate, so that deposited particles are impacted forcibly, and a dead zone at the bottom of the kettle is eliminated. The whole uniform mixing is realized, the problem of high viscosity of the pseudoplastic fluid far away from the paddle area is solved, the solid sedimentation is prevented, and the stirring efficiency and the fluid quality are greatly improved.

The installation structure of the MBR membrane module assembly comprises a treatment container, a membrane module arranged in the treatment container, and a suspension mechanism, the treatment container is provided with a hoisting frame above the membrane module, the hoisting frame is driven by a reciprocating vibrator to reciprocate in the horizontal direction, the suspension mechanism comprises four hoisting arms, the upper ends of the hoisting arms are respectively hinged to the four corners of the hoisting frame and rotate along the reciprocating direction of the hoisting frame, and the lower ends of the hoisting arms are respectively hinged to the top frame of the membrane module and rotate along the reciprocating direction of the hoisting frame, and the combination constitutes the installation structure of the MBR membrane module assembly. The MBR membrane module assembly is simple in structure, low in transformation cost, is subjected to scouring with water body through rapid reciprocating motion, achieves the purpose of removing activated sludge adsorbed on the surface of the membrane module, and effectively reduces energy consumption.

This invention discloses a SNP molecular marker of the AFF3 gene associated with broiler meat quality traits and its applications, belonging to the field of molecular biology. The nucleotide sequence of this SNP molecular marker is shown in SEQ ID NO.3, with an A / G mutation at base position 601, and genotypes including AA, AG, and GG. This invention also provides primer pairs for amplifying this molecular marker and a detection method. This SNP site is significantly correlated with leg muscle pH, breast muscle pH, breast muscle conductivity, and breast muscle shear force. Genotype detection can identify broiler meat quality traits, which can be applied to marker-assisted breeding to improve selection accuracy.

This invention relates to the field of mixing device technology and discloses a mixing device for producing chemical additives for oilfield fracturing. The device includes a mixing tank and a main drive shaft. The mixing tank is internally equipped with a mounting frame, a wall scraper, and a shearing blade. The mounting frame is located inside the mixing tank, and the wall scraper is fixedly mounted on the mounting frame. Two shearing blades are symmetrically arranged on both sides of the mounting frame. This mixing device for producing chemical additives for oilfield fracturing, through the linkage of the main drive shaft, internal gear disc, slider, and spacing adjustment mechanism, allows the main shaft to rotate forward, first driving the two shearing blades to approach to their minimum spacing before rotating as a whole. In reverse rotation, it first drives the two shearing blades to move away to their maximum spacing. This creates a high-shear zone to break up agglomerates during the feeding stage and expands the shearing blade spacing during the maturation stage to reduce shear force. This achieves adaptive adjustment of shear strength according to the process stage, solving the problem that traditional mixing methods, due to their single strength, cannot simultaneously meet the requirements of dispersion and maturation.

The utility model relates to the technical field of safety and material manufacturing, a kind of TRT turbine governor cylinder and the anti-drop device of pistol board connection, including servo cylinder and the pistol board ontology fixedly connected to its output end;The utility model can be just the plane contact friction of contact surface is changed to slightly interference fit contact of concave-convex surface inlay by the setting of boss and groove, increase the shear force of adjusting cylinder and pistol board, the shear force of connecting piece is transferred to pistol board and adjusting cylinder, reduce the shear force of connecting piece, prevent connecting piece fracture, ensure the normal connection movement of adjusting cylinder and pistol board, reduce TRT turbine set failure downtime, stationary vane cylinder blade opening normal regulation, it is convenient to adjust blast furnace top pressure, ensure TRT power generation, effectively prevent the occurrence of overspeed accident, simultaneously, by the setting of reinforcing mechanism, pistol board ontology and adjusting cylinder ontology can be fixed, effectively improve the stability of connection, to improve the anti-drop effect.

The utility model discloses an aerobic biofilter assembly for strengthening microbial attachment, which relates to the technical field of aerobic biofilters and comprises a filter component and an attachment assembly, lifting frame groups are erected on the left side and the right side of the filter component, and the attachment assembly is movably mounted at the bottom of an adjusting frame. A filtering assembly is mounted on the vertical surface of the front side of the filtering tank component. According to the aerobic biofilter assembly for strengthening microbial adhesion, the adjusting frame is arranged, the surface area for microbial adhesion and growth on the surface of the filler can be controlled to the maximum extent by utilizing the structural arrangement of the adjusting frame, and the filler amount and the microbial adhesion can be flexibly controlled as required by matching with the structural arrangement of the adjusting frame and the lifting frame group; in addition, the filter assembly is arranged on one side of the filter tank component, and heavy metal components contained in the sewage can be controlled while the water flow speed and flow can be adjusted by utilizing the structure of the filter assembly, so that the attachment and growth environment of microorganisms is optimized.

The invention relates to the technical field of aircrafts, in particular to a freight unmanned aerial vehicle cargo hold tail door actuation system and a control method, and the actuation system comprises a door frame, a first cabin door, at least two second cabin doors, a lifting mechanism and a split mechanism. Specifically, the door frame is arranged on the periphery of an opening of a stern room; the first cabin door is hinged to one end of the door frame and used for closing the tail cabin opening close to the nose. The two second cabin doors are hinged to the two sides of the door frame in an oppositely-opened state correspondingly and used for closing the remaining part of the tail cabin opening; the lifting mechanism is used for controlling the first cabin door to be opened or closed and can be opened by a maximum angle when the first cabin door abuts against the ground or is limited by an external object, and the situation that the lifting mechanism is overloaded and damaged or continuously drives the first cabin door to be opened to cause damage to the cabin door or the fuselage is prevented. The opposite opening mechanism is used for driving the two second cabin doors to be opened or closed. The tail cabin door has the effects that the operation stability of the tail cabin door is improved, and damage to the tail cabin door or a fuselage when the tail cabin door is opened is reduced.

This invention discloses a bionic knee exoskeleton based on a gear structure, comprising a lower leg exoskeleton assembly, a thigh exoskeleton assembly, a drive mechanism, and a knee joint bionic mechanism. The drive mechanism is connected to the knee joint bionic mechanism and disposed between the lower leg and thigh exoskeleton assemblies. The knee joint bionic mechanism includes a planetary gear mechanism and a three-stage gear mechanism, which are connected by a planetary carrier. The planetary gear mechanism and the three-stage gear mechanism are connected to the drive mechanism via an output shaft. This design effectively simulates the movement characteristics of the human knee joint, reducing the relative sliding between the strap and the body caused by joint misalignment, as well as the shearing force exerted by the strap on the body. Furthermore, as a rehabilitation training device, the knee joint requires a large assist force; this device, through its gear structure, effectively improves energy utilization efficiency and meets the demand for a high-torque drive device.

The application discloses a connecting method of a curtain wall node, belongs to the technical field of curtain wall construction, and aims at solving the problem of poor connection stability caused by weak points existing in the connection part of fasteners and curved panel in the prior art. The method comprises the following steps: fixedly connecting one node plate with the upper curtain wall node position, and fixedly connecting the other node plate with the lower curtain wall node position; the two ends of the carbon fiber cable body are provided with hinged balls at positions close to the end heads; a connecting sleeve is sleeved on the outer wall of the carbon fiber cable body end, the inner wall of the connecting sleeve is provided with an annular protrusion, the hinged ball is located on the side of the annular protrusion away from the center of the carbon fiber cable body, and the hinged ball and the annular protrusion form a spherical hinge structure; the connecting sleeve is inserted into the anchor head, and the anchor head is fixedly connected with the connecting sleeve; and the end of the anchor head away from the carbon fiber cable body is pivotally connected with the node plate. The application can be used for the connection of the curtain wall.

The application relates to the technical field of silicone rubber, and particularly discloses a wear-resistant and high-temperature-resistant silicone rubber composition and a preparation method. The silicone rubber composition comprises the following raw materials in parts by mass: 55-70 parts of methyl vinyl silicone rubber, 15-20 parts of methyl phenyl vinyl silicone rubber, 5-10 parts of polytetrafluoroethylene micro powder, 10-18 parts of modified POE, 4-8 parts of reinforcing filler, 2-4 parts of processing aid, 18-25 parts of fumed white carbon black, 1-3 parts of divinyl tetramethyl disilazane, 1.5-3 parts of vulcanizing agent and 0.5-2 parts of crosslinking aid. The raw materials are mixed in a banbury mixer, melt-blended in a torque rheometer and formed into a plate in a plate vulcanizing machine to obtain the wear-resistant and high-temperature-resistant silicone rubber composition. The silicone rubber composition prepared through the synergistic effect of the raw materials has excellent wear resistance, high-temperature resistance, excellent mechanical properties and good stability.

The invention discloses a rice mixing mechanism, and belongs to the technical field of rice processing. The rice mixing mechanism comprises a mixing tank, a mixing mechanism is arranged on the inner wall of the mixing tank, and the mixing mechanism comprises a connecting shaft installed on the inner wall of the mixing tank. The rice is mixed and stirred while the main stirring blades move up and down in the rice, the rice in the mixing tank can be covered more comprehensively, it is ensured that each corner and each layer of the rice can be effectively stirred, and therefore the rice mixing efficiency and uniformity are improved, meanwhile, the shearing force of the main stirring blades on the rice can be reduced, and the rice quality is improved. The rice mixing device has the advantages that the rice mixing device is simple in structure, damage to rice in the mixing process is reduced, auxiliary stirring blades are matched to stir the rice at the bottom end of the mixing tank and can rotate, the rice cannot repeatedly roll on a certain circumferential surface all the time, and meanwhile the circulating mechanism can continuously change the vertical position relation between the rice, so that the rice mixing effect is improved. Therefore, the rice mixing efficiency can be improved.

The present application belongs to the technical field of polycarbonate recycling, and relates to a regenerated transparent polycarbonate material and a preparation method thereof. The material comprises the following components in parts by weight: 95.5-99.87 parts of waste polycarbonate chips, 0.1-0.5 parts of an antioxidant compound, 0.01-3.0 parts of a chain extender, and 0.01-0.5 parts of a lubricant. The preparation method comprises the following steps: (1) drying; (2) mixing; and (3) melt granulation. The regenerated transparent polycarbonate material obtained by the present application has excellent mechanical properties and color stability, and is more likely to replace the application of virgin polycarbonate materials, thereby achieving effective recycling and utilization of waste transparent polycarbonate products.

The application discloses a wind power blade pre-buried blade root assembly and a preparation method thereof, and belongs to the technical field of wind power blade root pre-buried connection, which comprises a composite block composed of a skin and a glass fiber layer, further comprises a screw sleeve arranged in the composite block, the screw sleeve is formed by glue injection and heating curing with the composite block, and a plurality of U-shaped grooves are uniformly distributed on the composite block along the length direction of the composite block, the contact area of the skin and the whole composite block is increased, the strength between the skin and the whole composite block is enhanced, mechanical interlocking force is formed between the U-shaped grooves and the skin, the shear force of the blade is reduced, and the service life of the blade is prolonged.

This utility model discloses a plastic pipe mold, comprising: a mold core with a cavity inside; a water channel system distributed in a ring-shaped spiral within the cavity; a gate located at the feed end of the cavity; and a cold slug well connected to the gate. The transition area between the gate and the cold slug well adopts an R-angle structure, and the R-angle value ranges from 2mm to 5mm. The beneficial effects of this utility model are: by setting up a spiral water channel system, the cooling of the product during injection molding is more uniform, the cooling time is reduced, and production efficiency is improved; the R-angle transition between the cold slug well and the gate makes the melt flow smoother and reduces shear force.

The invention discloses an application of odd-carbon saturated fatty acid, fatty acid ester thereof and fatty acid salt thereof in improving animal meat quality or milk quality. Aiming at the meat quality, the meat color score and marbling score can be obviously improved, and the drip loss and the shearing force are obviously reduced; aiming at the milk quality, the milk protein rate and the milk fat rate can be obviously improved, the somatic cell number is reduced, and the method has important significance and application value in the animal breeding industry.

The embodiment of the utility model discloses an electrolysis assembly and electrolysis hydrogen production equipment, and relates to the technical field of new energy equipment, the electrolysis assembly comprises a pole frame and a gasket, the pole frame comprises a first frame body and a second frame body, and the first frame body and the second frame body are stacked; the first frame body faces the surface of the second frame body, the second frame body faces the surface of the first frame body, and at least one of the two surfaces is provided with a limiting clamping groove; the gasket is arranged between the first frame body and the second frame body, the surface, facing the first frame body, of the gasket and the surface, facing the second frame body, of the gasket are provided with protrusions at least one of the two surfaces, and the protrusions and the limiting clamping grooves are arranged in a matched and clamped mode. According to the technical scheme, the matching structure design of the electrode frame and the gasket is improved, and the practicability and reliability of the electrolysis assembly are improved.

The utility model provides a device for protecting overhead line in mechanical deicing, including first fixed connecting part, second fixed connecting part, third fixed connecting part and elastic buffer part of overhead line conductor or ground wire additional installation. Second fixed connecting part and third fixed connecting part are located first fixed connecting part both sides, and elastic buffer part is fixedly connected with first fixed connecting part, and is movably connected with second fixed connecting part and third fixed connecting part. When the action force produced by mechanical deicing device vibration is applied to first fixed connecting part, can pass through elastic buffer part, and after its buffering, the action force is dispersed to first fixed connecting part, second fixed connecting part and third fixed connecting part, thereby relieving the shearing force that overhead line conductor or ground wire is contacted with the position of first fixed connecting part, realizes the buffering and dispersion of action force, reaches the purpose of protecting overhead line conductor or ground wire.

The utility model discloses a corn steep liquor supplementing tank which comprises a tank body, the tank body comprises a tank top and a tank body, a machine base is arranged in the center of the tank top, a stirring driving device is installed on the machine base, the stirring driving device is connected with a stirring shaft extending into the tank body through a coupler, and a first stirrer and a second stirrer are arranged in the middle and at the lower end of the stirring shaft respectively. A feeding hole is formed in one side of the tank top, a hoisting device is annularly arranged on the periphery of the tank top, a flange plate and a sealing gasket are arranged on the butt joint surface of the tank body and the tank top, a jacket is arranged outside the tank body, a steam inlet is formed in the top side of the jacket, a condensed water outlet is formed in the bottom of the jacket, and a discharging hole is formed in the bottom of the tank body. The corn steep liquor supplementing tank can effectively reduce scaling and equipment cleaning frequency, has the advantages of being convenient to clean, good in cleaning effect and the like, and can effectively guarantee normal operation of equipment and maintain production efficiency and product quality.