78results about How to "Accelerated dissipation" patented technology

The invention discloses a static pressure pile sinking construction method for a high-strength concrete pipe pile under a complex soil foundation condition, and relates to the technical field of static pressure pile construction. Measuring a pile position; pile position numbering: numbering the measured and positioned pile foundations, carrying out regional division, and numbering each region according to parity; a pile machine is in place; a steel wire rope and a rigging for hoisting are tied firstly, and then the upper portion of the pile is bound through the rigging; hoisting the precast pile to a pile machine clamp, and enabling the clamp to tightly hold the pile body; then the position of the pile foundation is adjusted, and the prefabricated pile tip is vertically aligned with the pile position center and slowly inserted into soil; after the prefabricated pile tip is inserted into the pile position, the perpendicularity of the pile is measured, and the vertical deviation of the prefabricated pile does not exceed 0.5%; static pressure pile sinking; after the precast pile body is centered, a pile pressing oil cylinder is started, and the precast pile is slowly pressed down; when it is determined that the final pressure condition is met, the pressure should be stabilized immediately; and pile pressing is stopped after pressure stabilization. The technical problem that in the prior art, the state of a soil body is changed due to soil squeezing of a tubular pile is solved.

The invention relates to the technical field of sound-absorbing materials, in particular to a foaming sound-absorbing material with a high aperture ratio structure and a preparation method and application thereof.The foaming sound-absorbing material comprises one or more of polylactic acid, poly (adipic acid) / butylene terephthalate and polyhydroxyalkanoate, the density of the foaming sound-absorbing material is 0.04-0.08 g / cm < 3 >, and the porosity of the foaming sound-absorbing material is 20-30%. The aperture ratio of the foaming sound absorption material is higher than 60%. According to the invention, the polymer foaming sound absorption material with high aperture ratio can be prepared without adding other fillers and assistants, the prepared foaming sound absorption material has the characteristics of high aperture ratio, small density and the like, and the foaming sound absorption material can realize efficient absorption of sound waves in a thickness range of 10 mm.

The utility model discloses a rapid cooling device for a graphitization furnace, which is applied to the graphitization furnace and comprises a protective box, the inner wall of the protective box is fixedly connected with the graphitization furnace, the top wall of the protective box is fixedly connected with a water tank, an electric pump is mounted in the water tank, a water suction pipe is mounted on the side wall of the electric pump, and a water outlet pipe is fixedly mounted on the other side wall of the electric pump. The bottom end of the water outlet pipe penetrates through the protection box and extends downwards, the bottom end of the water outlet pipe is fixedly connected with a spiral pipe, and the spiral pipe is arranged on the outer wall of the graphitization furnace in a surrounding mode. The stirring rods drive the vertical rods to rotate, the multiple sets of stirring rods rotate, the material mixing effect is better, the inner wall of the graphitization furnace is cleaned by arranging the supporting rods in cooperation with the scraping plates, it is avoided that impurities are accumulated on the inner wall of the graphitization furnace, the heat dissipation effect of the graphitization furnace is affected, and the heat dissipation effect of the graphitization furnace is better.

The utility model relates to the technical field of building structure engineering, in particular to a steel beam column joint structure suitable for steel beams with different section heights. Comprising steel columns and steel beams. Each flange connecting piece comprises a first connecting part in bolted connection with a steel beam flange and a second connecting part in bolted connection with a steel column; the first connecting part and the second connecting part are vertically intersected to form a T-shaped bending component; the web connecting piece comprises a third connecting part in bolted connection with a steel beam web and a fourth connecting part in bolted connection with a steel column; the third connecting part and the fourth connecting part are vertically intersected to form a bent component; the corner connecting pieces are used for fixedly connecting the adjacent second connecting parts which are located on the different sides of the steel column and located at the different section heights into a whole in the horizontal direction. The steel beam column joint structure is good in overall stress, extremely high in stability and easy to install and assemble.

The invention discloses a working face end head top plate weakening anti-scour method, which adopts a mode of performing hydraulic slotting in a surrounding rock top plate of a roadway dangerous area of a working face end roadway to form a pressure relief slot, a retarding slot and a far-field dynamic load source breaking and expanding slot so as to improve the anti-scour capability of the working face end roadway. A pressure relief slot formed by hydraulic slotting on a roadway top plate can release static load of roadway surrounding rock, and a retarding slot formed by hydraulic slotting on a dynamic load propagation path can retard far-field dynamic load from being propagated to the roadway. The far-field dynamic load source breaking and expanding seam groove formed by hydraulic slotting in the rock mass near the dynamic load source can reduce the elastic energy density of the rock mass near the dynamic load source and reduce the possibility of roof breaking. According to the method, the energy capable of inducing the rock burst disaster can be jointly reduced in the three aspects of the generation condition of the dynamic load, the propagation path of the dynamic load and the static load of the surrounding rock, and the method is particularly suitable for solving the rock burst problem of the end roadway of the working face.

The invention provides a mechano-electric coupling hydrogel microsphere with stable mechanical property and low loss transduction as well as a preparation method and application thereof, and belongs to the technical field of tissue engineering bioremediation materials. According to the invention, supramolecular engineering and microfluidic technologies are utilized, and a slip ring structure polyrotaxane and conductive polypyrrole network is introduced to construct stress-electric coupling hydrogel microspheres. The molecular slippage mechanism of the slip ring structure stores and releases mechanical energy to reduce mechanical loss, and the conjugated pi-electron movement in the conductive network improves the electron transfer efficiency in the microsphere, so that the loss in stress-electricity conversion is reduced for the first time. Compared with the traditional piezoelectric hydrogel microspheres, the stress-electric coupling efficiency of the low-dissipation microspheres is improved by 2.3 times, and the energy dissipation rate is reduced to 43%. The mechano-electric coupling hydrogel microspheres can reduce cartilage injury of rats, improve behavior results and promote treatment of osteoarthritis by recovering low-loss transduction between tissues.

The invention discloses an optimization method for composite gradient interface insulation of an insulator and a related device, which considers the potential source of surface charges of the insulator in a direct current electric field and the influence of a multi-field coupling environment, and establishes an electric-thermal-current multi-field coupling simulation model for surface charge accumulation of the direct current insulator. Different insulator surface coating schemes are provided by considering electric field distribution modes and surface charge accumulation characteristics of different types of insulator shapes. Finally, an insulator tangential and normal electric field regulation and control strategy combining the geometric structure and surface nonlinear coating partition gradient coating is formed. Therefore, the problems that a quantitative optimization method of the direct-current insulator is lacked at present, and the specific complex curved surface geometric structure of the basin-type insulator cannot be fully considered in the aspect of the surface coating technology are solved.

The invention provides an organic silica gel mechanical design method based on a load spectrum. The organic silica gel mechanical design method comprises the following steps that 1, a mechanical parameter library of impact resistance is constructed, and the value range of corresponding mechanical parameters is determined; 2, constructing a material formula set of the organic silicon gel, and determining formula main control parameters influencing the performance parameters of the organic silicon gel and the value range of the formula main control parameters; 3, constructing a corresponding performance parameter library of the organosilicone gel, and determining the value range of key performance parameters; 4, constructing a design variable and mapping relation model of'load environment-material formula-mechanical parameter-performance parameter 'of the organosilicone gel; and 5, constructing an objective function of the impact resistance mechanical optimization design of the organic silicon gel, and carrying out multi-objective optimization solution and validity verification of the objective function. According to the method, the optimal design of the shock resistance of the organic silicon gel can be quickly realized, so that the high matching with the actual shock load environment of the organic silicon gel is realized.

The utility model relates to the technical field of voltage monitoring, and discloses an electric drive bridge voltage monitoring device, which comprises an electric drive bridge body, a transmission motor arranged on one side of the electric drive bridge body, a protection box fixedly connected to the front side of the transmission motor, and heat dissipation mechanisms arranged on two sides of the protection box. When the temperature control switch detects that the temperature in the protection box is too high, the temperature control switch starts the plurality of heat dissipation fans, and the plurality of heat dissipation fans can rapidly discharge air with heat in the protection box, thereby reducing the temperature in the protection box, and preventing the voltage monitor body from being damaged by electronic components in the protection box due to the too high temperature. And when the temperature in the protection box is lower than a temperature threshold set by the temperature control switch, the temperature control switch turns off the plurality of heat dissipation fans, so that electric energy can be saved, heat generated when the voltage monitor body works can be transmitted to the heat dissipation fins, and the heat dissipation fins can accelerate heat dissipation.

The invention relates to a medicated thread for traditional Chinese medicine thread moxibustion and a preparation method thereof, and belongs to the technical field of traditional Chinese medicine. The medicated thread provided by the invention is treated by specific liquid medicine, so that the medicated thread combines the medicinal effects of various traditional Chinese medicinal materials, all the components have a synergistic effect, and when the medicated thread is used, the medicinal effects can be transferred to a focus part by stimulating acupuncture points, so that the inflammatory response can be effectively relieved, the blood circulation is promoted, the extravasated blood absorption and dissipation are accelerated, and the swelling and pain are relieved; the body function is adjusted by adjusting qi and blood circulation, the effect of supporting the healthy energy is achieved, and self-repairing and rehabilitation of the body are promoted.

The reverse hedging type steam seal device of the steam turbine comprises a steam seal body, high teeth are arranged on an inner ring of the steam seal body in the radial direction, and a gas seal groove channel is formed in the side, facing the low-pressure end, of each high tooth; a main cavity is formed in the air seal channel, an energy consumption cavity is formed in the left side of the main cavity, a hedging cavity is formed in the right side, and a cavity inlet is formed in the bottom. After entering the main chamber, the steam main flow leftwards forms a first steam branch flow to enter the energy consumption chamber, and rightwards forms a second steam branch flow to enter the hedging chamber; an energy consumption structure is arranged on the inner wall of the energy consumption chamber, and the energy consumption chamber is provided with an energy consumption channel for communicating the first steam branch flow with the steam main flow; the inner wall of the hedging chamber is smooth, the hedging chamber is provided with a reversely inclined hedging channel, and the second steam branch flow and the steam main flow form a reverse steam flow hedging effect through the hedging channel. According to the invention, the leakproofness of the steam seal can be effectively improved, and the problem of movement of the rotor shaft is reduced on the basis.

The invention provides a damping device for a steel hollow floor slab and the steel hollow floor slab, and relates to the technical field of floor slab damping, the damping device comprises a prestressed inhaul cable, a stiffening beam, a connecting short beam and a first friction damper; the stiffening beam is arranged at the bottom of the floor slab and used for supporting the floor slab and transmitting vertical vibration of the floor slab; the two ends of the stiffening beam are connected with the two connecting short beams correspondingly, and the stiffening beam is connected with the main beams on the two sides through the connecting short beams. One end of the connecting short beam is connected with the main beam, and the other end is connected with the end part of the stiffening beam; the upper surface of the connecting short beam is connected with the lower surface of the floor; the two first friction dampers are connected between the two ends of the stiffening beam and the two connecting short beams correspondingly and used for dissipating floor vibration energy. The two ends of the prestress inhaul cable are connected to the main beams on the two sides respectively and used for vibration reduction of the floor slab. The prestressed inhaul cables and the stiffening beams are arranged in parallel, and the prestressed inhaul cables are arranged on the two sides of the stiffening beams. Resonance of the floor slab under the action of pedestrian load is reduced, and living comfort and safety are improved.

The invention discloses a short fiber and polyurethane-based interlayer in-situ modification method for a composite material, and relates to the technical field of resin material modification. According to the method disclosed by the invention, the epoxy resin is synergistically modified by utilizing the discrete short carbon fibers and the microphase separation polyurethane, so that the interlayer performance of the continuous carbon fiber reinforced epoxy composite material laminated board is enhanced and toughened; the epoxy resin is toughened by adding microphase separation polyurethane, so that the interlaminar fracture toughness of the composite material is improved, in addition, a proper amount of discrete short carbon fibers are added into the epoxy resin, and the interlaminar shear strength of the composite material is improved by utilizing the high-strength characteristic of the short carbon fibers; the method has the advantages that the thickness is easy to control, operation is easy, cost is low and the like, the interlayer performance of the continuous carbon fiber reinforced epoxy composite material can be comprehensively improved, and the requirement of engineering application in the aerospace field for the interlayer performance of a laminated board can be met.

The present invention relates to a battery module having a cooling function and a battery pack comprising same, and more particularly to a battery module including a plurality of battery cells, a cell frame including a plurality of side plates and a bottom plate connecting lower edges of the plurality of side plates to each other, wherein the cell frame has a space portion accommodating the plurality of battery cells, and a cooling member located in the space portion being disposed so as to enclose a part of an outer surface of each of the plurality of battery cells accommodated in the space portion, wherein the cooling member includes a first member and a second member, the first member being disposed along a longitudinal direction of the plurality of battery cells and the second member being connected to one end of the first member, and a part of the second member is recessed in the bottom plate.

The invention relates to the technical field of polymer composite material preparation, in particular to a super-tough core-shell stereocomplex polylactic acid-based composite material and a preparation method thereof. The super-tough core-shell stereocomplex polylactic acid-based composite material is prepared from the following raw materials in parts by mass: 70 to 100 parts of polylactic acid and 0 to 30 parts of the modified elastomer in claim 4, and the dosage of the modified elastomer is not 0; the modified elastomer is prepared by melting and blending stereocomplex polylactic acid powder and a functional elastomer copolymer; the stereocomplex polylactic acid powder is prepared by reactive melt blending of PLLA and PDLA in an equal mass ratio or an equal molar ratio. The prepared super-tough core-shell stereocomplex polylactic acid-based composite material has excellent tensile strength and impact resistance, can be applied to the field of engineering plastics such as automobile parts, electronic and electric appliance shells, household products, catering tableware and the like, and has remarkable environmental protection benefits and industrial popularization value.

The invention relates to a cleaning agent used after SiC substrate grinding and a preparation method thereof, and relates to the field of semiconductor cleaning agents, and the cleaning agent is prepared from the following raw materials by mass: 4-8% of an anionic surfactant, 2-6% of a nonionic surfactant, 2-6% of a cleaning auxiliary agent, 8-12% of sodium hydroxide, 2-4% of a bio-based modified antistatic agent, and the balance of water. The preparation method comprises the following steps: heating water, adding sodium hydroxide, stirring, adding the cleaning aid, stirring, adding the premixed anionic surfactant and nonionic surfactant, stirring, adding the bio-based modified antistatic agent, stirring, cooling, and filtering to obtain the cleaning agent for grinding the SiC substrate. The cleaning agent has a good cleaning effect, can effectively remove impurities after grinding, and meets the requirement of the semiconductor industry for high-quality cleaning of SiC wafers.

The application discloses a concrete prefabricated column reinforcing anti-misplacement structure and a mounting method thereof, and relates to the technical field of building structure reinforcement, which comprises a plurality of prefabricated columns, reinforcing members connected with the prefabricated columns, and connecting members arranged between the prefabricated columns and the reinforcing members. The application comprises four steps: S1, preparing vertical prefabricated columns and horizontal prefabricated columns, and placing the vertical prefabricated columns and the horizontal prefabricated columns to predetermined positions to ensure the verticality and the horizontality; S2, mounting vertical connecting members and horizontal connecting members to the vertical prefabricated columns and the horizontal prefabricated columns to ensure the connection with longitudinal reinforcement and horizontal reinforcement; S3, connecting reinforcing bodies with the vertical connecting members and the horizontal connecting members; and S4, arranging first reinforcing plates and second reinforcing plates on surfaces of the vertical connecting members and the horizontal connecting members respectively, and tightening steel ropes to complete the mounting. The multiple connections among the structures can significantly improve the stability and the bearing capacity of the concrete prefabricated columns, and reduce the damage caused by external factors such as earthquakes and wind loads.

The invention belongs to the technical field of grid-connected power control, and aims to provide an MMC grid-connected power control method. The passive current inner loop controller with linear damping is introduced into the current inner loop, so that energy dissipation is accelerated, the dynamic response performance and the adjusting speed of the system are improved, current harmonics can be effectively suppressed, and the stability of the system is enhanced; meanwhile, a self-adaptive power outer ring controller containing a self-adaptive rotational inertia compensation mechanism of an arctan function and a self-adaptive damping compensation mechanism is introduced into a power outer ring, so that the rotational inertia change rate in self-adaptive control is effectively suppressed, transient oscillation of the system is further suppressed, and the reliability of the system is improved. And the dynamic response performance and the transient stability of the MMC grid-connected system are further improved.

This utility model discloses a novel indwelling needle patch for preventing phlebitis, comprising a patch body, an adhesion component on one side of the patch body, and a limiting component on another side of the patch body; the adhesion component includes a groove on the top of the patch body, within which a preventive layer is disposed, the preventive layer being used at least to prevent phlebitis; an adhesion structure and a fixing structure, the adhesion structure being disposed on both sides of the patch body, the adhesion structure being used at least to ensure that the patch body adheres to the patient's skin, and the fixing structure being disposed on both sides of the adhesion structure. This utility model, through its adhesion component, can prevent phlebitis through the preventive layer while ensuring a better fit between the patch body and the indwelling needle, thereby preventing insufficient fit between the patch body and the indwelling needle, which could increase the risk of infection at the puncture site, thus increasing the practicality of the indwelling needle patch.

The present invention discloses a method for modifying the roughness gradient of an insulator for improving the surface flashover of AC / DC, which belongs to the technical field of high-voltage insulating materials, and comprises the following steps: 1) ultrasonically treating and drying a pot-type insulator; 2) selecting a first fine sandpaper with a set mesh number to grind the entire side of the insulator dried in step 1); 3) selecting a first coarse sandpaper with a set mesh number to grind the uncovered part of the insulator obtained in step 2); 4) selecting a second coarse sandpaper with a set mesh number to grind the first gradient of the insulator obtained in step 3); 5) using a roughness tester to frequently measure the roughness of each layer, and uniformly grind the gradient range of each layer to obtain an insulator with a roughness gradient modification. The surface modification treatment method of the roughness gradient of an insulator provided by the present invention can significantly improve the discharge path of the insulator, and provide support for improving the AC / DC surface flashover performance of the insulator.

The invention provides a flame-retardant antistatic nylon fiber with a skin-core structure and a preparation method of the flame-retardant antistatic nylon fiber, and belongs to the technical field of nylon fibers. The flame-retardant antistatic nylon fiber comprises an antistatic nylon skin layer and a flame-retardant nylon core layer, the outer surface of the flame-retardant nylon core layer is coated with the antistatic nylon skin layer, the antistatic nylon skin layer comprises a nylon 6 matrix and an antistatic agent, and the antistatic agent is aniline modified zirconium phosphate; wherein the aniline modified zirconium phosphate is obtained by carrying out in-situ polymerization on aniline monomers between stripped zirconium phosphate layers. The flame-retardant antistatic nylon fiber is obtained through sheath-core composite melt spinning. According to the invention, the antistatic agent and the flame retardant are efficiently and stably introduced into the nylon matrix, and the synergistic effect of the antistatic agent and the flame retardant is realized, so that the fiber has better spinnability and mechanical property, and meanwhile, the long-term effect and durability of the function are ensured.

This invention discloses a carbide-reinforced high-entropy alloy wear-resistant and corrosion-resistant coating, its preparation method, and its application, belonging to the field of materials surface engineering technology. The preparation method of the carbide-reinforced high-entropy alloy wear-resistant and corrosion-resistant coating includes the following steps: fixing a high-entropy alloy cathode target and a carbide cathode target on a DC target and an RF target respectively, and performing magnetron sputtering co-deposition on the substrate surface to obtain the carbide-reinforced high-entropy alloy wear-resistant and corrosion-resistant coating. This invention utilizes magnetron sputtering technology to prepare wear-resistant and corrosion-resistant high-entropy alloy composite coatings reinforced with three carbides—WC, Cr3C2, and TiC—on the surfaces of different substrate materials. The high strength and high hardness of the three carbides not only improve the mechanical properties of the composite coating, but also enable the WC, Cr3C2, and TiC carbide-reinforced wear-resistant and corrosion-resistant coatings to possess microhardnesses as high as 8.58 GPa, 7.38 GPa, and 7.15 GPa, respectively.

The utility model relates to the technical field of electric appliances, and provides an arc extinguish chamber structure. Comprising a first shell and a second shell which are oppositely arranged, and a split combination part which jointly form a hollow arc extinguishing cavity, the plurality of arc extinguishing grid layers are alternately arranged in the arc extinguishing cavity to form a continuously turning arc path so as to prolong the arc moving distance, and are connected through the inclined grid arms; the arc guide assembly includes a first guide at the bottom of the housing and a second guide between the first guide and the inclined grid arm. The first guiding piece generates directional airflow under the effect of arc heat energy, and the arc is driven to move, be segmented and be extinguished along a steering path. According to the utility model, a continuous steering arc path is constructed through the split type shell and the multilayer grids, and the arc is driven to move and divide by combining the directional airflow generated by the arc guide assembly, so that the arc extinguishing efficiency and the working reliability of the arc extinguish chamber are improved.

This invention provides a lithium aluminum silicon glass-ceramic composite material synergistically reinforced with pre-oxidized cubic boron nitride and carbon fiber, and its preparation method. LAS powder and pre-oxidized cubic boron nitride powder are mixed uniformly, and then an aqueous dispersion containing a dispersant is added. The mixture is ball-milled to obtain a slurry, which is then uniformly coated onto carbon fiber cloth. After thorough impregnation, the slurry is dried to obtain a prepreg. Multiple layers of prepreg are stacked in the same direction to obtain a laminate, which is sintered under vacuum or an inert atmosphere. After cooling, a Cf / LAS composite material is obtained. By designing a special particle structure of "boron oxide-coated cBN core," a tight bond between the reinforcing phase and the matrix is ​​achieved, and the overall interface system of the composite material is precisely controlled, ultimately obtaining excellent comprehensive properties of high strength, high toughness, high hardness, and low wear rate.

The invention relates to the technical field of multi-layer composite fabrics, and discloses an anti-wrinkle antistatic polyester fabric and a preparation method thereof. The preparation method comprises: performing polymerization reaction on terminal olefin modified hyperbranched polyester / nanosilver composite material, hydroxyethyl methacrylate, quaternary ammonium salt type surfactant, and methoxy polyethylene glycol acrylate under initiator conditions to obtain an antistatic agent, impregnating a single-layer polyester fabric with an antistatic finishing liquid obtained by compounding the antistatic agent and water, respectively obtaining a surface layer fabric and an inner layer fabric, and compounding to obtain an anti-wrinkle antistatic polyester fabric. The polyester fabric has excellent antistatic performance, good antibacterial performance, and good anti-wrinkle effect.

The invention discloses an anti-fog automobile lamp and relates to the technical field of automobile lamps, an automobile lamp shell and an external shell form a double-layer shell structure design, the automobile lamp shell and an automobile lamp body are protected, external damage is reduced, and therefore the service life of equipment is prolonged; the plastic plate is of an inclined structure, the plastic plate can be attached to the inner wall of the external shell conveniently when the automobile lamp shell is placed in the external shell, so that the redundant space between the shells is reduced, the stability of the automobile lamp shell in the external shell is improved, when the automobile lamp shell enters the external shell, extrusion butt joint is carried out on a plate face groove through the fixing assembly, and the automobile lamp shell is prevented from being damaged. The side, close to the connecting end, of the outer portion of the double-layer lampshade is of a straight face design, the other side of the outer portion of the double-layer lampshade is of a micro-curved-surface structure design, the curved-surface side of the double-layer lampshade faces the outside, and the effect of actively breaking water drop film forming is achieved through the curved-surface structure.

The utility model provides a hydrogen fuel cell control device for a heavy truck, which comprises a controller body, radiating fins arranged on the upper surface of the controller body, protective vertical plates arranged on the front and rear sides of the radiating fins, semiconductor chilling plates arranged on the upper surfaces of the radiating fins, mounting racks arranged on the outer sides of the protective vertical plates, and mounting boxes arranged on the left and right sides of the mounting racks, a mounting plate is fixedly mounted on one side of the mounting box, a servo motor is fixedly mounted on the mounting plate, and a cooling fan is arranged at the output end of the servo motor. According to the hydrogen fuel cell control device for the heavy truck, through the semiconductor chilling plate with the bottom surface coated with heat conduction silicone grease, the heat conductivity of the semiconductor chilling plate can be enhanced, temperature conduction can be accelerated, so that the heat dissipation efficiency is improved, two sets of heat dissipation fans distributed on the left and right sides of the heat dissipation fins are arranged, and the heat dissipation fans are started alternately, so that the heat dissipation efficiency is improved. Therefore, air convection can be enhanced, the heat dissipation effect is uniform, heat dissipation in the heat dissipation fins is accelerated, and the heat dissipation effect is further improved.

The invention discloses a protection device for an explosion-proof motor, and relates to the technical field of explosion-proof motors, the protection device comprises a main body mechanism, the main body mechanism comprises an explosion-proof shell, the inner wall of the explosion-proof shell is fixedly connected with an explosion-proof composite inner sleeve, and the explosion-proof composite inner sleeve is internally provided with a motor main body; the outer surface of the motor main body is fixedly connected with a main support, the outer surface of the main support is fixedly connected with the inner wall of the explosion-proof shell and the inner wall of the explosion-proof composite inner sleeve, and according to the protection device for the explosion-proof motor, by arranging the water cooling unit, real-time temperature monitoring can be carried out on the environment in direct contact with the motor main body; and when the environment temperature is influenced by the external environment temperature and rises to a certain temperature, the temperature is reduced in time, so that the influence of the external high-temperature environment on the performance and efficiency of the motor main body during operation is effectively reduced. And heat generated during operation of a miniature water pump and a miniature condenser in the water cooling unit can be discharged in time.

The application discloses a rail corrugation suppression device and a mounting method, and belongs to the technical field of rail transit. The rail corrugation suppression device comprises a suppression mechanism, the suppression mechanism is symmetrically arranged on both sides of the rail waist of a rail, the bottom of the rail is provided with a fixing mechanism for fixing the suppression mechanism on the rail, an energy consumption box is arranged on the fixing mechanism, and the energy consumption box is located directly below the rail. The suppression mechanism comprises a plurality of box bodies arranged in a linear array, a plurality of first suppression layers and second suppression layers are arranged in the box bodies, and the first suppression layers and the second suppression layers are arranged at intervals. The rail corrugation suppression device and the mounting method can solve the problem that the existing rail corrugation suppression device has poor damping effect on rail vibration and noise.

This invention relates to a triangular prism-type tuned mass damper suitable for large-span cantilever structures, comprising a triangular prism box (1), a particle damping unit (4) disposed within the triangular prism box (1), and a steel mass block (3). A high-damping spring (2) is located below the triangular prism box (1). The particle damping unit (4) includes a particle damping chamber (5), three different sized particle balls, and a foamed rubber pad (9). When the structural vibration amplitude is small, the particle balls dissipate energy by compressing the foamed rubber pad and rolling; when the structural vibration amplitude is large, the particle balls dissipate energy by colliding and compressing the foamed rubber. Compared with the prior art, this invention achieves a phased energy dissipation mechanism while solving the problems of narrow vibration reduction bandwidth, large motion stroke, and noise generated by particle collisions in traditional mass tuned dampers.