40results about How to "Adjustable quality" patented technology

The invention relates to a method for recycling lithium in lithium battery cathode materials by an electrochemical method and belongs to the technical field of energy source materials. The method for recycling the lithium in the lithium battery cathode materials by the electrochemical method is provided to solve technical problems. According to the method, the lithium battery cathode materials serve as a cathode, a metal or carbon electrode serves as an anode, an aqueous solution serves as an electrolyte, and electric potential is applied, so that lithium ions in the lithium battery cathode materials migrate into the electrolyte aqueous solution to form a lithium-containing solution. Through the method, the lithium element in the lithium battery cathode materials can be simply and efficiently recycled. Further, the raw materials cover anode material leftover materials, wastes and lithium battery anodes existing universally on the market. Lithium products formed by recycling have the advantages of being large in number of varieties, adjustable in quality and the like.

The invention discloses a hot metal high-temperature heat pipe. The hot metal high-temperature heat pipe comprises a liquid filling pipe, a top end cover, a heat pipe shell, a bottom end cover, a gap,a condensation section liquid absorbing core, a heat insulation section liquid absorbing core, an evaporation section liquid absorbing core, a steam cavity, a liquid absorbing core plug and a gas storage bag. The closed liquid filling pipe, the top end cover, the heat pipe shell and the bottom end cover jointly form a closed space of the heat pipe. The liquid filling pipe is connected with a hotmetal filling loop through a connecting element, and filling of a working medium is achieved. The backflow resistance of the liquid working medium can be reduced through the gap. The evaporation section liquid absorbing core, the heat insulation section liquid absorbing core and the condensation section liquid absorbing core jointly provide power for backflow of the liquid working medium. The wavestructure of the heat insulation section liquid absorbing core can reduce liquid drop entrainment, and the condensation section liquid absorbing core adopts a fin structure to accelerate steam condensation. The liquid absorbing core plug can store the working medium and adjust the mass of the working medium participating in circulation. The gas storage bag can limit non-condensable gas, and the influence of the non-condensable gas on heat transfer is reduced.

The invention relates to an eddy-current self-frequency-conversion tuned mass damper, which is arranged on a main structure of a building, and comprises a spring, a fixed mass block, a variable mass block, a permanent magnet bar, a servo control component and a for-regulation mass block, wherein the for-regulation mass block is fixedly arranged on the main structure; the upper end of the permanent magnet bar passes through permanent magnet bar conduits in the centers of the fixed mass block and the variable mass block in sequence respectively and is fixed through a bolt; the lower end of the permanent magnet bar stretches into an electromagnetic groove arranged in the center of the for-regulation mass block, and moreover, is arranged with a conductor plate, which is arranged in the electromagnetic groove, in a relative induction manner; the spring is arranged outside the permanent magnet bar in a sleeving manner; moreover, the upper end of the spring is connected with the fixed mass block; the lower end of the spring is connected with the for-regulation mass block; the servo control component is connected with the variable mass block and the for-regulation mass block respectively. Compared with the prior art, the eddy-current self-frequency-conversion tuned mass damper has advantages that the mass can be regulated, the energy consumption is low, the structure is simplified, an external energy source is not needed, the friction is avoided, the damping effect is good, and the like.

The invention relates to a washing machine balance weight and a washing machine, and a weight balancing method of the washing machine, and relates to the technical field of washing machines. According to the technical scheme, the washing machine balance weight comprises at least one weight balancing cavity and one water pressurizing structure, wherein the cavity wall of the weight balancing cavity is provided with a water inlet which is used for connecting a water inlet pipeline and a water outlet which is used for connecting a water outlet pipeline. Each weight balancing cavity is internally provided with one water pressurizing structure so that water entering the weight balancing cavity can be located in an air-free sealed cavity. The washing machine balance weight is used for being fixed on a water containing drum of the washing machine. The washing machine comprises the washing machine balance weight. The weight balancing method of the washing machine comprises the step of adopting the washing machine balance weight to conduct mass-adjustable weigh balancing. The washing machine balance weight and the washing machine, and the weight balancing method of the washing machine are mainly used for lowing vibration and noises of the washing machine in work, and for reducing the production cost and transportation cost of the washing machine.

The invention relates to a module type secondary vibration isolator. The module type secondary vibration isolator comprises an upper cover plate (1) which is connected with a quality frame plate (4) through an upper portion fastening bolt (2); an upper portion elastic element (6) is clamped in the middle; a base plate (9) is connected with the quality frame plate (4) through a the lower portion fastening bolt (7) and a lower portion elastic element (8) is clamped between the base plate (9) and the quality frame plate (4); the upper portion elastic element, the lower portion elastic element and the quality frame plate form into a secondary vibration isolating system; a detachable exchangeable quality plate (5) is fixed on the quality frame plate (4). The vibration isolator is arranged on the equipment foundation. The module type secondary vibration isolator can be used for secondary vibration isolating and primary vibration isolating (pay attention to resonance avoidance). The module type secondary vibration isolator has the advantages that the inherent frequency is low, the middle quality frame allows tandem connection, the quality is adjustable, and transportation and installation are convenient due to the fact that the vibrator isolator is in an integral structure.

The invention discloses a magnetic liquid damping shock absorber containing a spherical crown surface non-magnetic conductive inertia block, and is suitable for shock absorption of a longer object in a spacecraft. One ends of cylindrical permanent magnets selected by the device are inlaid in end covers, and the rest of exposed parts are coated by magnetic liquid; and the cylindrical permanent magnets on the two end covers are symmetrically distributed about the central section of a non-magnetic conductive shell. The adopted non-magnetic conductive inertia block is positioned between the symmetric cylindrical permanent magnets coated by the magnetic liquid, and is cylindrical; the two bottom surfaces of the non-magnetic conductive inertia block respectively contain three concave spherical crowns; and all corresponding bottom surfaces of the three spherical crowns on the bottom surfaces are tangent. The non-magnetic conductive inertia block generates a relative motion with the cylindrical permanent magnets under the effect of inertia force; and the magnetic liquid is extruded by using gap layers orderly changed between the bottom surfaces of the cylindrical permanent magnets and the concave spherical crown surfaces for consuming energy. The device is sensitive to the inertia force, and can effectively perform the shock absorption for planar shock with the characteristics of low frequency and low accelerated speed.

The invention discloses a magnetic liquid damping shock absorber containing a spherical crown surface non-magnetic conductive inertia block, and is suitable for shock absorption of a longer object in a spacecraft. One ends of cylindrical permanent magnets selected by the device are inlaid in end covers, and the rest of exposed parts are coated by magnetic liquid; and the cylindrical permanent magnets on the two end covers are symmetrically distributed about the central section of a non-magnetic conductive shell. The adopted non-magnetic conductive inertia block is positioned between the symmetric cylindrical permanent magnets coated by the magnetic liquid, and is cylindrical; the two bottom surfaces of the non-magnetic conductive inertia block respectively contain three concave spherical crowns; and all corresponding bottom surfaces of the three spherical crowns on the bottom surfaces are tangent. The non-magnetic conductive inertia block generates a relative motion with the cylindrical permanent magnets under the effect of inertia force; and the magnetic liquid is extruded by using gap layers orderly changed between the bottom surfaces of the cylindrical permanent magnets and the concave spherical crown surfaces for consuming energy. The device is sensitive to the inertia force, and can effectively perform the shock absorption for planar shock with the characteristics of low frequency and low accelerated speed.

The invention relates to the technical field of mechanics experiments and particularly relates to a dynamic vibration reduction experiment device and method. The device comprises a fixed pedestal, a vibration main system, a vibration subsystem, and a vibration test system, wherein the vibration main system comprises an elastic beam and a rotating motor mass block; two ends of the elastic beam are hinged to the first supporting plate and the second supporting plate respectively; the rotating motor mass block is arranged on the elastic beam; the vibration subsystem comprises a spring, a porous aluminum sheet and an electromagnetic pole; an upper end of the spring is fixedly connected to the rotating motor mass block, a lower end of the spring is fixedly connected to a porous aluminum thin plate, and the electromagnetic pole is arranged on a support; and the vibration testing system is connected with the rotating motor mass block and the porous aluminum thin plate. The method comprises the following steps of measuring different mass ratios and different rigidity ratios of the vibration main system and the vibration subsystem and dynamic vibration reduction effects of the vibration subsystem under different damping conditions; and measuring the influence of different arrangement positions of the vibration subsystems on the dynamic vibration reduction of the vibration main system.

The invention relates to a novel cement production method and belongs to the technical field of cement production. The invention aims at solving the technical problem of reducing the energy consumption in the cement production process. The cement production method is characterized in that after being pre-heated and pre-decomposed, a cement raw meal is placed into a high-temperature molten pool at 1350DEG C to 1650DEG C to be transformed into molten mass; fuel and combustion-supporting gas are sprayed in through a spray gun which is immersed into the molten mass to provide energy; cement melting and sintering reaction is carried out; and the sintered molten clinker is cooled, proportioned and grinded continuously, thus producing the finished cement. The method adopts the full molten liquid phase reaction, the mass and heat transfer rate is greatly enhanced, the reaction time is short, and the transformation rate is high, thus enhancing the production capacity and saving a large amount of energy consumption.

The invention discloses a low-frequency lever type tuned mass damper. The damper comprises a lever frame (1) which comprises a lever support (11) and a lever suspension arm (12), a fixing mechanism (6) vertically connected with the lever frame (1) and internally provided a spring assembly (2) and a damper body (5); and a mass unit (3) arranged at the end, far away from the fixing mechanism (6), ofthe lever cantilever (12). The mass unit (3) is movably connected with the lever cantilever (12) through a bearing (4), the mass unit (3) and the lever cantilever (12) form a tuned mass damper powerand power arm, and the spring assembly (2), the damper body (5) and the part between the lever cantilever (12) and the lever support (11) form a resistance and resistance arm. The mass unit (3) comprises a mass block (31). According to the tuned mass damper, the main structure can be effectively prevented from being damaged due to large-amplitude vibration, and then the main structure is protectedagainst damage.

The invention discloses a preparation process of an antibacterial polyester fiber fabric, which relates to the technical field of clothing fabrics. The preparation process of the antibacterial polyester fiber fabric comprises the following steps: grinding tourmaline in the presence of a dispersant to obtain a tourmaline powder; mixing the tourmaline powder with titanium dioxide and then adding toa maleic anhydride solution to carry out a grafting reaction to obtain a grafted tourmaline mixed powder; adding the mixed powder of grafted tourmaline powder in the process of polyester synthesis toobtain composite polyester; performing melt spinning on the composite polyester to obtain a polyester fiber; and weaving the polyester fiber to obtain the polyester fiber fabric. According to the preparation process of the antibacterial polyester fiber fabric provided by the invention, after the polyester fabric clothing contacts a human body, the generated negative ions enter the human body through the respiratory tract and enter the blood through the alveolar epithelial layer, thereby increasing blood oxygen content and lung capacity.

The invention belongs to the technical field of timber bionics, and provides a preparation method of artificial timber for generating negative oxygen ions like living standing stock, which comprises the following steps: pretreating the timber; preparation of g-C3N4; preparation of cesium tungstate nanoparticles; adding cesium tungstate nanoparticles and g-C3N4 into deionized water and performing ultrasonic dispersion to obtain cesium tungstate / g-C3N4 aqueous dispersion; impregnating the pretreated wood with cesium tungstate / g-C3N4 aqueous dispersion, performing repeated vacuum pressure impregnation treatment for multiple time; drying the impregnated wood at room temperature; performing heat compression treatment on the dried wood to obtain the artificial timber for generating negative oxygen ions like living standing stock. The method takes wood, which is a renewable building decorative material, as a base material, uses sodium hydroxide / sodium sulfite aqueous solution to pre-treat thewood, and combines the vacuum pressure impregnation and hot compression treatment to prepare the artificial timber loaded with cesium tungstate / g-C3N4 composite.

The invention relates to a weight box with adjustable mass and maintenance of the position of a mass center. The weight box comprises a box body, the upper surface of the box body is open so that different balancing weights are conveniently replaced, balancing weight components are arranged in the box body, and comprise narrow supporting plates, eccentric balancing weights, hollow balancing weightgroups and / or solid balancing weights; the box body is formed by connecting a left side plate, a right side plate, a bottom plate and a rear baffle through screws, the front surface of the box body is connected with a collision device, the rear baffle of the box body is provided with a threaded rod for compressing the balancing weight components in the box body, and the upper portions of the leftside plate and the right side plate of the box body are respectively provided with hanging plates. The box body structure is used as the counterweight, and the counterweight mass is adjusted by adopting a mode of replacing the hollow counterweight and the solid counterweight. Compared to a traditional mode, the weight box with the adjustable mass and maintenance of the position of the mass centerhas the following advantages in that: 1. the mass is adjustable, and can ensure the adjusting precision, 2, when the mass is adjusted, the position of the mass center is kept unchanged in the up-downdirection and the left-right direction, 3, the structure is firm and fast, and the rigidity can be ensured, 4, the counterweight adjustment is convenient and fast to operate, and 5, the weight box has expansibility.

The invention discloses a flexible phase change composite material with a cross-linked network structure and a preparation method thereof, which belong to the field of composite materials. Theflexible phase change composite material with a cross-linked network structure comprises a flexible polymer matrix, a carbon nanotube (CNT) crosslinked with the flexible matrix, and a filled solid-liquid phase change material. A three-dimensional cross-linked network based on the flexible polymer / carbon nanotubes is constructed by adding a cross-linking agent for chemical cross-linking reaction, and the chemical cross-linking effect can reduce the interface hindering effect of the CNT and solve the problem of non-uniform dispersion of the CNT. The packaging efficiency of the solid-liquid phase change material is favorably improved, and the mechanical property and the heat storage property of the phase change composite material are remarkably enhanced. The material disclosed by the invention has stable phase change performance and has the functions of temperature regulation and heat energy storage. The material is easy to cut and process, shows good flexibility at room temperature, and has a good application prospect in the field of temperature control of flexible electronic devices.

The invention discloses an automatic all-in-one machine for a tin bar. The automatic all-in-one machine comprises a mounting bottom box which is internally provided with a control mechanism, and the mounting bottom box is provided with a transmission mechanism, a code printing mechanism and a discharging mechanism which cooperate with each other; the control mechanism is in signal connection withthe transmission mechanism, the code printing mechanism and the discharging mechanism; the transmission mechanism comprises a first cylinder, guide wheel groups, a mounting plate and a transmission pneumatic clamping device, and the mounting plate is fixed to the mounting bottom box; the guide wheel groups are installed on the front side of the mounting plate, and a transmission channel horizontally arranged is formed between the guide wheel groups; and the first cylinder is installed on the rear side of the mounting plate, and the power of the first cylinder is output to the transmission pneumatic clamping device matched with the transmission channel. By adopting the above technical scheme, the labor intensity of workers is very low, and the manual operation is less; the safety performance is excellent, and the labor cost is saved; the product uniformity is high, and the quality is guaranteed steadily.

The invention discloses a dynamic absorber which comprises a first vibration absorption assembly and a second vibration absorption assembly. The first vibration absorption assembly comprises an uppermass block and an elastic support. The upper mass block is detachably mounted on the elastic support. The second vibration absorption assembly comprises a rubber block and a lower mass block. The lower mass block is located in the elastic support. The rubber block is arranged between the elastic support and the lower mass block. The rubber block and the lower mass block are connected detachably. The dynamic absorber has the advantages that the first vibration absorption assembly and the second vibration absorption assembly are combined to form the two-stage series-connection dynamic absorber,and the advantages of being large in vibration reduction bandwidth, good in vibration reduction effect and good in robust performance are achieved; the upper mass block, the rubber block and the lowermass block are detachably connected, and it is guaranteed that the mass of the dynamic absorber is adjustable; the detachable connection manner of the elastic support guarantees that the rigidity ofthe dynamic absorber is adjustable, and therefore the inherent frequency is adjustable; and the dynamic absorber can be changed into a dynamic absorber adjustable in single-stage frequency according to needs, and use is more flexible.

The invention discloses a hydraulic motor inertia loading test device which is characterized in that the device comprises a platform, support columns placed on the ground to support the platform are welded to the bottom of the platform, a rotary support is connected under the platform, a tested hydraulic motor reducer assembly and a reducer are arranged on the platform, and the reducer is connected with a loading module. The characteristic of the reducer is used reversely, namely, the speed of a tested hydraulic motor is reduced and the torque is increased by the reducer, then, the speed is increased and the torque is reduced reversely by the reducer, and finally, the actions are transferred to the loading module, so the mass and size of the loading module are reduced, and layout and processing are facilitated. Meanwhile, the mass of the loading module is adjustable, namely, the corresponding load is adjustable, which facilitates design and adjustment of acceleration test.

The invention belongs to the technical field of fungus cultivation, and particularly relates to a sleeve type edible fungus cultivation device. The device comprises a base, a plurality of supporting rods are arranged at the upper end of the base, and a culture device is arranged at the upper ends of the supporting rods; a reaction tank and a recovery tank are arranged at the upper end of the base,and the reaction tank and the recovery tank are arranged at the positions, on the left side and the right side of the culture device, of the base respectively; the upper end of the reaction tank is provided with a first liquid guide pipe, and the end, away from the reaction tank, of the first liquid guide pipe is connected with one end of the culture device; a second liquid guide pipe is arrangedat the upper end of the recycling tank, and the end, away from the recovery tank, of the second liquid guide pipe is connected with the other end of the culture device; a plurality of mobile devicesare arranged at the lower end of the base. The sleeve type edible fungus cultivation device has the advantages that the quality of edible fungi can be effectively controlled, the production efficiencycan be improved, a culture medium is convenient to replace, the service life of the culture device is prolonged, and the flexibility of the culture device is improved through the mobile devices.

The invention relates to a fine coal low-temperature destructive distillation kiln, which is characterized in that a fire wall is arranged in a furnace wall of a kiln body, a fire path is arranged in the fire wall, the upper part of the fire path is communicated with a smoke evacuation pipeline, the bottom of the fire path is communicated to a gas combustor, the gas combustor and a gas pipeline are communicated to an air pipeline, at least one charing chamber is arranged at the inner side of the fire wall, the upper part of the charing chamber is communicated to a feed opening, the upper part of the feed opening is connected to a frequency conversion spiral feeder, the upper part of the frequency conversion spiral feeder is connected to a bunker at the top of the kiln, an upper row precipitate gas main pipe which is connected to the charing chamber is laterally arranged at one side of the feed opening, the upper row precipitate gas main pipe is communicated to a gas recycling pipe, a quenching water groove is arranged at the bottom of the charing chamber, a frequency conversion spiral discharging machine is arranged at the lower part of the quenching water groove, a belt conveyor is arranged at one side of the frequency conversion spiral discharging machine, the charing chamber is composed of three small charing chambers, so that the fine coal can be uniformly distributed, the destructive distillation kiln is benefit for collecting gas, and has the advantages of uniform heating, adjustable temperature and energy saving.

The invention relates to a quick barbecue device, which comprises a microwave container at least comprising a first cover body and a second cover body, and an accommodating space is formed by the first cover body and the second cover body; the expansion part is arranged between the first cover body and the second cover body so as to expand the volume of the accommodating space; wherein any one or two or three of the second cover body, the first cover body and the expansion part are made of a ceramic material, the ceramic material comprises a microwave absorbing material and a ceramic material which does not act with microwaves, and the ceramic material is used for absorbing the microwaves under the condition that the ratio of the microwave power to the material mass is 2 watts / gram (W / g). And the heating effect that the temperature is increased by 1.5 DEG C / s or above can be achieved. Therefore, the temperature rise can be controlled by adjusting the ratio of the applied microwave power to the mass of the ceramic material, so that the purpose of quickly barbecuing food is achieved, and the use situation which is not beneficial to continuous barbecuing can be improved through the high-temperature-resistant characteristic of the ceramic material.

The invention discloses a rolling compaction type ice and snow removing device. One end of one compactor and one end of the other compactor are symmetrically arranged at two ends of a lug respectively; the other ends of the two compactors are respectively rotatably connected with one end of each of two spiral adjusting rods correspondingly; the other ends of the two spiral adjusting rods are respectively rotatably connected with a sheave; a central line part of the sheave and the middle part of the lug are respectively rotatably connected with two ends of a fixed connecting rod; a balance weight of each compactor is arranged on the upper part in a shell, and spiral compactor wheels are arranged on the bottom of the shell; outlines of the spiral compactor wheels are provided with screw threads with blades; and two sides of each compactor are respectively provided with connecting lugs which are provided with connecting pin roll holes.

The invention provides a selenium-rich nutrient solution as well as a preparation method and application thereof. The selenium-rich nutrient solution comprises a selenium-rich nutrient solution A and a selenium-rich nutrient solution B, and the mass ratio of the selenium-rich nutrient solution A to the selenium-rich nutrient solution B is (1-2):(2-3). The selenium-rich nutrient solution A comprises the following raw materials in parts by weight: 8-10 parts of humic acid, 6-8 parts of L-proline, 2-4 parts of magnesium sulfate, 2-4 parts of copper sulfate, 3-6 parts of selenium ore powder, 10-15 parts of straw mushroom powder, 20-30 parts of bran fermentation liquor and 25-35 parts of water; and the selenium-rich nutrient solution B comprises the following raw materials in parts by weight: 7 to 11 parts of cassava starch, 9 to 15 parts of bamboo powder, 4 to 6 parts of sodium selenite, 8 to 15 parts of liquorice root decoction dregs, 12 to 16 parts of radix astragali decoction dregs, 4 to 8 parts of fructus crataegi decoction dregs, 12 to 15 parts of lotus leaf extract and 12 to 18 parts of anabaena culture solution. The prepared selenium-rich nutrient solution is applied to crop cultivation, green and environment-friendly selenium-rich crops with high organic selenium content and less inorganic selenium residues can be harvested, the quality and nutritional value of the crops can be improved, the preparation method is simple, the product is easy to use, and the selenium-rich nutrient solution is quite suitable for large-scale popularization and application.

The invention discloses an automatic all-in-one tin bar machine, which comprises an installation bottom box, a control mechanism is arranged inside the installation bottom box, and a matching transmission mechanism, a coding mechanism and a discharge mechanism are arranged on the installation bottom box. The control mechanism is signal-connected with the transmission mechanism, coding mechanism and discharge mechanism. The transmission mechanism includes a first cylinder, a guide wheel group, a mounting plate and a pneumatic clamping device, and the mounting plate is fixed on the installation bottom box. , the guide wheels are installed on the front side of the mounting plate, a horizontal transmission channel is formed between the guide wheel sets, the first cylinder is installed on the rear side of the mounting plate, and the power output of the first cylinder is transmitted to the pneumatic clamp tightening device, and the pneumatic clamping device is matched with the transmission channel. Adopting the above-mentioned technical scheme, the labor intensity of workers is very low, there are few manual operations, the safety performance is good, and the labor cost is saved; the product consistency is good, and the quality is guaranteed to be stable.

The invention discloses a hot metal high-temperature heat pipe. The hot metal high-temperature heat pipe comprises a liquid filling pipe, a top end cover, a heat pipe shell, a bottom end cover, a gap,a condensation section liquid absorbing core, a heat insulation section liquid absorbing core, an evaporation section liquid absorbing core, a steam cavity, a liquid absorbing core plug and a gas storage bag. The closed liquid filling pipe, the top end cover, the heat pipe shell and the bottom end cover jointly form a closed space of the heat pipe. The liquid filling pipe is connected with a hotmetal filling loop through a connecting element, and filling of a working medium is achieved. The backflow resistance of the liquid working medium can be reduced through the gap. The evaporation section liquid absorbing core, the heat insulation section liquid absorbing core and the condensation section liquid absorbing core jointly provide power for backflow of the liquid working medium. The wavestructure of the heat insulation section liquid absorbing core can reduce liquid drop entrainment, and the condensation section liquid absorbing core adopts a fin structure to accelerate steam condensation. The liquid absorbing core plug can store the working medium and adjust the mass of the working medium participating in circulation. The gas storage bag can limit non-condensable gas, and the influence of the non-condensable gas on heat transfer is reduced.

The invention relates to an experimental verification method for identifying a modal parameter of a variable mass structure, and belongs to the technical field of modal parameter identification of structural dynamics. The experimental verification method comprises the steps that a time varying structure with a mass size and mass distribution capable of be controlled accurately with a time varying rule is designed and set up; the modal parameter of the time varying structure is identified under short time invariant assumption; a varying rule of the modal parameter with the time of the time varying structure is obtained and serves as a basis reference; a time varying structure dynamic experiment is performed; a structural dynamic response signal of the time varying structure under specified excitation is measured; measured data is identified by a to-be-verified method; an identification result is compared with the basis reference for verifying the feasibility and the accuracy of the to-be-verified method; the identification result of the to-be-verified method and the basis reference are compared under different experiment conditions; and the robustness of the to-be-verified method is verified. The experimental verification method is simple and reliable.

The invention discloses a press machine for easy replacement of pressure supply components, which comprises a base, a fixed frame, a pressure device and a frame holder. The top plate is composed of a pressure device, which includes a pressure plate and a pressure supply element, and an elliptical column-shaped fixed block for fixing the base of the pressure supply element is arranged on the upper end surface of the pressure plate; The supply element is fixedly installed on the pressure plate, just place the pressure supply element in the middle of the upper surface of the pressure plate, and then install the four fixing blocks on the four threaded through holes on the outside of the bottom of the pressure supply element through bolts, and turn the fixing block to fix The block is in close contact with the bottom of the pressure supply element, and then the bottom of the pressure supply element can be fixed by tightening the bolts for installing the fixing block, so that different pressure supply elements can be easily replaced.

The invention relates to a novel electric automobile two-stage vibration isolation two-dimensional adjustable suspension system which comprises a suspension support, a suspension and a balancing weight, a bolt A is installed on the top of the suspension support, the suspension support is connected with a motor through the bolt A, a bolt C is installed at the bottom of the suspension support, and the suspension is installed on the suspension support through the bolt C; the suspension is composed of a suspension shell, a suspension inner sleeve, a suspension inner rubber bushing, a suspension middle sleeve, a suspension outer rubber bushing and a suspension outer rubber bushing sleeve, and the suspension inner sleeve, the suspension inner rubber bushing, the suspension middle sleeve and the suspension outer rubber bushing are arranged in the suspension shell in sequence from inside to outside. The suspension outer rubber bushing is arranged in the suspension outer rubber bushing sleeve; a balancing weight is fixed to the suspension middle sleeve through a bolt, and the bottom of the suspension shell is connected with an auxiliary frame or a vehicle body through an E bolt. The high-frequency dynamic stiffness of the power assembly suspension system can be effectively reduced, the high-frequency vibration isolation performance is improved, and high-frequency vibration and high-frequency noise of an electric automobile are improved.

The invention relates to the technical field of electronics, in particular to an electronic infusion alarm. The electronic infusion alarm comprises a device shell, a working circuit board is arrangedin the device shell, the working circuit board is connected with an alarm indicating lamp, the alarm indicator lamp is mounted on the outer surface of the device shell, a buzzer and a range knob are arranged on the surface of the device shell, an infusion bottle hook is connected to the lower end of the device shell, a hanging hole is formed in the outer surface of the upper portion of the deviceshell, a pressure sensing device is arranged on the inner surface of the device shell, a hardware system structure of the alarm is composed of a direct-current power module, a sensing module, a control module and an alarm module, and the control module comprises a signal amplifying module, a range adjusting module and a control quality module. The alarm module comprises a buzzer and a light-emitting diode. The alarm is low in manufacturing cost, simple in principle and simple and convenient to operate, is convenient to popularize and easy to debug, and has a good application prospect.

A flexible phase-change composite material with a crosslinked network structure and a preparation method thereof belong to the field of composite materials. Including: a flexible polymer matrix, carbon nanotubes (CNT) cross-linked with the flexible matrix, and filled solid-liquid phase change materials; by adding a cross-linking agent for chemical cross-linking reactions, a flexible polymer / carbon nanotube based The three-dimensional cross-linking network of the tube, this chemical cross-linking effect can reduce the interfacial hindrance of CNTs and solve the problem of uneven dispersion of CNTs. It is beneficial to improve the packaging efficiency of solid-liquid phase change materials, and significantly enhance the mechanical properties and heat storage performance of phase change composite materials. The material of the invention has stable phase transition performance and has the functions of temperature regulation and thermal energy storage. The material of the invention is easy to cut and process, exhibits good flexibility at room temperature, and has good application prospects in the field of temperature control of flexible electronic devices.

The present invention discloses a quality adjustable experiment device for measuring buffer shock resistance. The device comprises a workbench, a clamping module, a sliding module and weighting modules. The clamping module is configured to clamp two buffers to be measured, the clamping module is fixed at the top of the workbench, the sliding module is fixed at the top of the workbench, the weighting modules are arranged between the two buffers to be measured, and the bottoms of the weighting modules are arranged on the sliding module. The number of the weighting modules configured to bear impact is changed to regulate the quality of the weighting modules and carry corresponding speed, displacement and pressure sensors so as to obtain performance curves of buffers at different impact conditions, the structure is simple and reliable, and the production cost is low.