14results about How to "Reduce shear stress" patented technology

The application discloses a large-angle variable stiffness flexible joint, which is composed of a plurality of flexible joint modules stacked together; the flexible joint module comprises a lower chassis, a spiral winding type driver, an elastic main bone and an upper chassis, one end of the elastic main bone is connected with the upper chassis, and the other end is connected with the lower chassis; N spiral winding type drivers are connected between the upper chassis and the lower chassis, and N is greater than or equal to 3; the lower chassis is provided with a buckle mounting groove; the upper chassis is provided with a buckle; the spiral winding type driver is provided with a metal wire; the metal wire is connected with a control system; the elastic main bone is of a space groove type structure; the space groove type structure is provided with one or more symmetrical notches on the elastic main bone; and the stiffness of the elastic main bone is adjusted by adjusting three parameters of a groove height H, a groove inner diameter D and a groove spacing AH. The application adopts modular design and the elastic main bone is adjustable, and large-angle bending and variable stiffness of the flexible joint are realized.

The embodiment of the present application provides a kind of infusion tube assembly and infusion equipment.The infusion tube assembly is applied to the infusion equipment with infusion tube, and the infusion tube assembly includes joint, infusion tube and silica gel tube.The first channel for liquid flow is formed in the inside of joint, for being communicated with one end of first channel;The second channel for liquid flow is formed in the inside of silica gel tube, and the second channel is communicated with the other end of first channel, and the hardness of silica gel tube is lower than the hardness of infusion tube;The joint and silica gel tube are integrated, so that the joint is communicated with silica gel tube and infusion equipment.The infusion tube assembly and infusion equipment provided by the embodiment of the present application set up the integrated structure of joint and silica gel tube, do not need to be installed by adhesive, can reduce the process of assembly, improve the reliability of joint and silica gel tube connection, and guarantee the consistency of production.

The application discloses a retired power battery pack disassembling industrial robot operation device and method thereof, and belongs to the technical field of new energy automobile battery recycling, and comprises the following steps: S1, an industrial robot, a Z-direction flexible floating connection mechanism and an air floating ultrasonic composite cutter head assembly are arranged, wherein the Z-direction flexible floating connection mechanism is located below a terminal flange interface of the industrial robot; the air floating ultrasonic composite cutter head assembly and the Z-direction flexible floating connection mechanism are arranged, and a physical self-adaptive system based on fluid statics is constructed; when the cutter head driven by the industrial robot encounters a battery bump, the suspension gap is compressed, the flow resistance effect of airflow in the narrow gap causes the static pressure in the air film to rise exponentially, the aerodynamic repulsive force generated in the instant directly breaks the mechanical balance model, overcomes the pre-tightening force set by the Z-direction flexible floating connection mechanism, and drives the cutter head assembly to physically give way along the Z-axis direction within milliseconds.

The invention discloses an anti-scouring device and a mounting method. The anti-scouring device comprises a pile body, a sliding block, a plurality of bottom rods, a blocking part and a plurality of connecting rods. The pile body extends in the first direction, the pile body is sleeved with the sliding block, and the sliding block is slidably connected with the pile body. The multiple bottom rods are rotationally connected with the pile body and distributed in the circumferential direction of the first direction at intervals, the blocking parts are connected with the bottom rods, the connecting rod is provided with a first end and a second end which are oppositely arranged in the length direction of the connecting rod, the first end is rotationally connected with the side, away from the pile body, of the sliding block, and the second end is rotationally connected with the bottom rods. The anti-scour device is configured to have a gathering state and an unfolding state, in the gathering state, the blocking part is close to the pile body, in the unfolding state, the blocking part is away from the pile body, and the sliding block moves in the first direction, so that the anti-scour device is switched between the gathering state and the unfolding state. The self-state can be flexibly adjusted, development of scouring of the seabed around the pile is restrained, and the pile is low in cost, long in life cycle and high in adaptability.

The utility model provides a kind of bottom flow regulator and hydraulic cyclone of bushing integration, this bottom flow regulator includes upper socket fixing piece, the elastic hose for being connected with the bottom flow outlet of hydraulic cyclone, telescopic mechanism and movable lower socket, two ends of the elastic hose are respectively fixedly connected with upper socket fixing piece, movable lower socket, it is connected between upper socket fixing piece, movable lower socket by telescopic mechanism;The telescopic mechanism includes outer tube and inner tube, and the inner tube is located in the outer tube and is movably connected, by adjusting the relative position of outer tube and inner tube, the elongation of elastic hose is changed, to change the diameter of hose nozzle, to adjust the flow rate of bottom flow.Using the technical scheme of the utility model, the bottom flow of hydraulic cyclone can be conveniently adjusted, the turbulent flow is reduced, the wear of bottom flow regulator is reduced, and the risk of blockage is reduced.

The application discloses a high-performance blade electrolytic manufacturing device under a spiral flow field and a working method thereof and belongs to the technical field of electrolytic processing. The spiral flow channel can significantly reduce the shearing stress of the wall surface on the liquid and reduce the liquid flow resistance. The spiral flow channel is composed of multiple circular arcs with decreasing radii. Through the constraint and control effect of the spiral channel on the liquid, the liquid flow rate will continuously increase, the liquid enters the machining gap at a high flow rate, the problems of bubble blockage and electrolytic sludge accumulation existing in the traditional flow mode can be effectively solved, the high-performance titanium alloy blade can be machined in a single passivation electrolyte, the problems of difficult replacement of the traditional composite electrolyte and difficult manufacturing of the sealed clamp for machining the titanium alloy solution are solved, the process mode is simple, and the machining cost is low. The elastic insulating block can greatly reduce the stray current attack of the hole side wall of the sheet-shaped cathode on the surface of the blade to be machined, reduce the blade machining taper, and improve the blade forming precision.

The application discloses a waste heat recycling device and method of a steam boiler and relates to the technical field of steam boiler waste heat equipment, which comprises a steam boiler shell, a steam boiler support fixedly installed on the outer side of the steam boiler shell, a steam boiler main body fixedly installed on the inner side of the steam boiler shell, a waste heat recycling device fixedly connected to the flue gas output end of the steam boiler main body on the side of the steam boiler support close to the steam boiler main body, and a plurality of smoke pipes arranged in the steam boiler main body along the horizontal direction. The application dynamically balances the flue gas flow and temperature entering each smoke pipe, ensures that the flue gas distributed uniformly and the temperature field is stable when finally discharged from the boiler and entering the waste heat recycling device. The application changes the condition that the traditional boiler flue gas outlet exists serious 'flue gas deviation' (namely local high temperature and high speed), so that each part of the waste heat recycling device can work efficiently and safely under the design condition.

The application discloses a rotary kiln composite lining structure and belongs to the technical field of thermal equipment. The rotary kiln composite lining is designed by a structure of a working layer, a functional layer and an anchoring structure, integrates the concepts of mechanical reinforcement and energy-saving protection, and can realize good structural stability and heat insulation performance. Through efficient reflection of radiant heat by a reflection layer, cooperative heat conduction blocking of a heat preservation layer and a heat insulation layer, resistance to corrosion and stress buffering of a protection layer, and anti-abrasion and high-temperature corrosion resistance of the working layer, a hierarchical heat protection system is formed. In combination with a quasi-flexible connection system in the anchoring structure, the rotary kiln thermal expansion stress and shear stress in the rotating process can be reduced under the premise of ensuring the connection strength, and the overall stability of the structural layer is improved. The rotary kiln composite lining provided by the application has mechanical strength and heat insulation performance, can obtain a relatively long service life, and realizes efficient energy saving of the rotary kiln.

This invention discloses a copper-aluminum-copper composite strip, an LED bracket, an LED device, and their fabrication methods and applications, belonging to the field of semiconductor packaging. The composite strip includes a first segment and a second segment; the first segment has a first total thickness T, and the ratios of the thicknesses of the first copper layer T1, the aluminum layer T2, and the second copper layer T3 to the first total thickness T satisfy: T1 / T = 0.2-0.3, T2 / T = 0.4-0.6, T3 / T = 0.2-0.3; the second segment has a second total thickness T', and the ratios of the thicknesses of the first copper layer T1', the aluminum layer T2', and the second copper layer T3' to the second total thickness T' satisfy: T1' / T' = 0.05-0.15, T2' / T' = 0.7-0.9, T3' / T' = 0.05-0.15; the first and second segments are connected by a gradual transition zone. The LED bracket is manufactured by stamping and bending of this strip, using a variable roll gap rolling process. This invention solves the problems of existing copper-aluminum-copper composite brackets, such as difficulty in balancing conductivity and heat dissipation with molding performance, and the tendency for delamination and cracking and copper layer peeling during processing, thereby achieving synergistic optimization of LED bracket performance and cost.

The utility model relates to gear box maintenance technical field, and disclose modularization gear box maintenance support, including maintenance frame body and gear box body, gear box body surface is equipped with the convex, and maintenance frame body includes track piece, and the inner wall sliding connection of track piece has a plurality of movers, and the top of mover is equipped with L type groove, the inner wall sliding connection of L type groove has L type board, and L type board parallel section length is greater than the height of L type board vertical section, and L type board top is equipped with the clamp piece, the utility model discloses through with the clamp of maintenance frame body is divided into clamp piece and the two module of mover, can through bolt dismount, make staff when facing different models gear box body, only need to select suitable clamp piece, and the L type board of clamp piece slides into the L type groove of mover, can improve the clamping effect of clamp, thereby adapt to different shapes and convex gear box body, be convenient for staff to fix gear box body when maintaining, need not directly with assembly contact, prevent gear box body inner wall assembly damage.

The invention discloses a preparation method of a light-weight low-tensile high-modulus polyester industrial yarn, which comprises the following steps of: tackifying a high-viscosity polyester chip by a solid-phase tackifying device, melting and extruding by a screw extruder, entering a spinning manifold, distributing the melt in the spinning manifold by a spinning component, and pressing into a porous spinneret plate to form a tow, sequentially cooling, oiling, drafting, heat setting and winding to obtain the low-stretch high-modulus polyester industrial yarn. The intrinsic viscosity of the high-viscosity polyester chip is 1.10-1.16 dL / g, the melting point is 257-265 DEG C, the specification of the chip is 2.35 + / -0.50 g / 100, the number of holes of a spinneret plate is 280f, the hole pitch of the spinneret plate is 0.96 cm, and the hole diameter is 0.8-0.99 mm. The industrial yarn produced by the method shows excellent characteristics of light weight, low stretching and high modulus, and completely meets the requirements of high-end rubber framework materials such as radial tires and the like on high-performance fibers.

The application relates to the technical field of offshore wind power foundations, and discloses a high-stability offshore wind power foundation, which comprises a pile foundation, the outer side of the pile foundation is surrounded by a protective insertion cylinder, the top surface of the protective insertion cylinder is horizontally extended outward to form a horizontally extended skirt plate, a plurality of rubber air bags are arranged below the horizontally extended skirt plate, an expansion mechanism is arranged on the rubber air bags, a monitoring mechanism is arranged on the outer side of the protective insertion cylinder, an annular transition bin is rotatably arranged on the circumferential outer side of the protective insertion cylinder, a flow disturbing mechanism and an adjusting mechanism are arranged on the annular transition bin, and a plurality of electromagnetic current meters are mounted on the outer side of the pile foundation through mounting racks. The flow disturbing mechanism cooperates with the adjusting mechanism to accurately and effectively disturb the incoming flow, the horseshoe vortex is prevented from being formed, and the stability of the whole pile foundation is improved. Meanwhile, the inflatable rubber air bags are arranged, the inflatable rubber air bags can fill the scour pits after being inflated, automatic protection measures can be taken after the scour pits are warned, and the stability of the whole pile foundation is further improved.

The utility model relates to the technical field of supercritical fluid foaming, in particular to a single-layer foaming machine head of a supercritical fluid foaming blow molding machine, which comprises a mounting plate, an outer mold body is arranged at the lower part of the mounting plate in a fixed structure manner, a lower mold mouth part is arranged at the lower part of the outer mold body, and an inner mold body is arranged in the lower mold mouth part; the inner mold body is connected with a core lifting rod to drive the inner mold body to move in the vertical direction, the core lifting rod is connected with a first power piece, an inner core rod, a middle core rod and an outer core rod are sequentially arranged between the core lifting rod and the outer mold body in a sleeving mode from inside to outside, the upper ends of the inner core rod and the middle core rod are fixedly connected with a mounting plate respectively, and the outer core rod is connected with a second power piece so that the outer core rod can slide in the vertical direction; two V-shaped material guide grooves are symmetrically formed in the peripheral surface of the inner core rod, and the two ends of the two V-shaped material guide grooves are communicated with each other, so that rotary shear flow of a spiral runner is converted into axial laminar flow, cell breakage is reduced, and the product quality is improved; an arc-shaped material guide groove is formed in the peripheral surface of the inner core rod at the upper part of the V-shaped material guide groove; and the arc-shaped material guide groove is communicated with the end part of the V-shaped material guide groove.