104results about How to "Evenly loaded" patented technology

The invention provides a comprehensive management and control method and system based on digital twin and multi-source heterogeneous data processing, and the method comprises the following steps: scanning a site, obtaining the point cloud data of a surrounding environment, reconstructing the reverse modeling of the geometric shape and structure of a building according to the point cloud data, and calibrating the model obtained through the reverse modeling with the site; carrying out optimization processing on the model; a multi-source heterogeneous data fusion technology is adopted to carry out process collection and classification on heterogeneous data of various specialties of rail transit, and standardized processing of the data is realized. According to the comprehensive management and control method and system based on digital twinborn and multi-source heterogeneous data processing, accurate mapping of a digital twinborn space to a real station environment is realized, a three-dimensional model can be associated with multi-dimensional data attributes, core functions such as virtual inspection, risk management and control and scheduling decision making are realized in an auxiliary manner, and the method and the system are suitable for popularization and application. And the intelligent operation level of the station is improved.

The utility model discloses a track slab static load test rack and a test device, the track slab static load test rack comprises a base, a support frame and a counter-force frame, the base comprises transverse I-shaped steel and longitudinal I-shaped steel, the transverse I-shaped steel and the longitudinal I-shaped steel are arranged in a crossed manner and form a hollow structure, and the counter-force frame is arranged on the support frame. The support frame is placed on the base, a plurality of reaction frames are fixedly connected above the base, each reaction frame is transversely arranged, all the reaction frames are longitudinally arranged at intervals, and the static load test device comprises the static load test rack. According to the track plate static load test rack and the track plate static load test device, the steel structure base is adopted, a concrete test platform is prevented from being built before a track plate static load test is carried out, the working efficiency can be improved, a test site can be flexibly moved and changed according to requirements, and the efficiency of the track plate static load test can be improved.

The invention discloses a high-temperature and high-pressure fluid lubrication rotating plane frictional wear testing device, and belongs to the technical field of extreme working condition tribology testing. The device is characterized in that a lifting device and a loading cylinder are simultaneously fixed at the top of a test stand bracket, a piston rod of the loading cylinder is connected with a tension sensor and a water-cooling loading shaft, and the water-cooling loading shaft is connected with a lower sample piece (static ring) in a high-temperature and high-pressure test cavity through a spherical universal joint; the oil-cooling main shaft is fixedly connected with an upper sample piece (moving ring) in the high-temperature and high-pressure test cavity through a locking nut, so that the axial load of the water-cooling loading shaft and the oil-cooling main shaft in a non-concentric state can be uniformly loaded, and the end surfaces of the upper sample piece and the lower sample piece can be automatically attached to each other. The upper part of the high-temperature and high-pressure test cavity is connected with the water-cooling jacket, and the lower part is connected with the bearing cavity. High pressure of the test chamber is guaranteed by a high-pressure water station system, and high temperature is adjusted and controlled by an electric heater and a water cooling jacket. The device can realize the rotary sliding friction wear test of a friction pair in a high-temperature and high-pressure water environment.

The utility model relates to the technical field of batteries, and discloses a battery and a battery pack. The shell is internally provided with a hollow cavity, the pole group is arranged corresponding to the hollow cavity, a first opening is formed in the first end, in the height direction, of the shell, two opposite first inner walls, in the length direction, of the shell protrude inwards to form first limiting parts, and the first limiting parts and the end face of the pole group are oppositely arranged in a spaced mode in the height direction; the top cover assembly is arranged corresponding to the first opening, the top cover assembly comprises an anti-explosion valve, and the top cover assembly abuts against the end face of the pole group. When the pole group loses the limiting effect of the top cover assembly, if the pole group moves towards the anti-explosion valve, the pole group is limited by the first limiting part along the two sides of the length direction, so that the end surface of the pole group is prevented from being in contact with the anti-explosion valve to cause blockage of the anti-explosion valve, gas in the battery is smoothly discharged from the anti-explosion valve, and the safety of the battery is improved.

The invention provides an efficient and energy-saving intelligent building temperature control management method and system, and is applied to the field of energy data processing. By judging whether the type of the waste energy is matched with the recyclable energy or not, the waste energy is effectively converted into the recyclable energy, waste heat, waste gas and waste water are recycled and effectively utilized, the external energy requirement can be lowered, consumption of traditional energy can be reduced, the energy-saving effect is achieved, and meanwhile the energy-saving effect is achieved through accurate waste energy recycling and utilization. Energy waste can be effectively reduced, so that energy expenditure of a building is reduced, intelligent monitoring and dynamic adjustment are beneficial for ensuring efficient work of energy storage equipment, avoiding excessive operation or uneven load, prolonging the service life of the equipment and reducing maintenance and replacement frequency of the equipment, flexible adaptation is carried out according to different waste energy types, and the energy utilization rate of the building is improved. And it is ensured that each kind of waste energy can be effectively recycled and utilized, the universality and flexibility of the building to energy are improved, and the building can cope with changes of different environments and waste energy.

The utility model discloses a motor disassembling and assembling device which comprises an operation platform, a horizontal moving platform is arranged on the operation platform, a lower positioning plate is arranged on the horizontal moving platform, an upper mounting plate and a lower mounting plate are arranged above and below the operation platform respectively, and the upper mounting plate and the lower mounting plate are connected through a plurality of guide rods. The upper mounting plate and the lower mounting plate are in transmission connection with the telescopic end of the upper hydraulic cylinder and the telescopic end of the lower hydraulic cylinder respectively, a lifting adjusting mechanism is arranged on the upper mounting plate, an upper ejector pin is arranged on the lifting adjusting mechanism, and a lower ejector pin is arranged on the lower mounting plate; according to the scheme, through cooperation of the upper ejector pin and the lower ejector pin, abutting positioning of the two ends of the rotor can be achieved, the stator of the motor can be fixed through the lower positioning plate, position adjustment of the stator in the horizontal direction can be achieved through the horizontal moving platform, and therefore the coaxiality deviation between the rotor and the stator is reduced, and the dismounting and mounting precision is improved; and damage caused by disassembly and assembly is reduced.

The invention discloses a reactor cabin structure internal pressure-bending combined load test device and a test method thereof.The device comprises a test module, the test module comprises a test section, a first transition section and a second transition section, and the test section is provided with a first pressure cabin and a second pressure cabin; the internal pressure loading module comprises a water tank and a pressure pump; the bending loading module comprises a first vertical loading mechanism and a second vertical loading mechanism; the bottom supporting module comprises a first supporting mechanism and a second supporting mechanism; and the measuring module comprises a first pressure sensor, a second pressure sensor and a pressure gauge. According to the invention, the internal pressure loading module and the bending loading module are used for simulating the load of the pressure chamber structure under dual accident conditions, the structural response under the condition of superposition of different internal pressure loads and different bending loads is known, and the safety and reliability of a chamber section model of the pressure chamber structure under the accident conditions are analyzed.

The invention discloses an experimental device and method for measuring the heat conductivity of a diamond enhanced aluminum heat expansion plate, and relates to the field of heat conduction performance detection, the experimental device comprises a cold source device for cooling one end of a test piece and a heat source device for heating the other end of the test piece, the cold source device comprises a cold source clamp, and the cold source clamp is fixedly connected with a cold source fixing plate; the cold source device comprises a cold source clamp, the cold source clamp is slidably connected with a cold source sliding plate, the sliding direction of the cold source sliding plate is close to or far away from the cold source fixing plate, cooling layers are arranged on the opposite sides of the cold source sliding plate and the cold source fixing plate, and the heat source device comprises a heat source clamp, and a plurality of length-adjustable supporting adjusting rods are connected between the cold source clamp and the heat source clamp; the heat source clamp is fixedly connected with the heat source fixing plate and slidably connected with the heat source sliding plate, the sliding direction of the heat source sliding plate is close to or away from the heat source fixing plate, and heating layers are arranged on the opposite sides of the heat source fixing plate and the heat source sliding plate. And the overall heat conductivity of the heat expansion plate in the main heat flow direction is accurately obtained.

The utility model relates to the technical field of sanitary ceramic testing, in particular to a sanitary ceramic load testing machine which comprises a supporting assembly, a load assembly stretching across the supporting assembly and a fixing assembly movably arranged on the supporting assembly. The load assembly comprises a door-shaped frame, cylinder lifting modules are arranged on the two sides of the door-shaped frame, pressing plates are arranged at the lifting ends of the two cylinder lifting modules, the pressing plates are arranged above the supporting assembly, pressure sensors are arranged on the pressing plates, and the cylinder lifting modules drive the pressing plates to move so as to apply different load pressures to the sanitary ceramic products to be detected. Compressed air is adopted to drive the two sets of air cylinder lifting modules which are symmetrically arranged to drive the pressing plate to move, different load pressures are applied to a sanitary ceramic product to be detected for load resistance testing, the structure is simple, the manufacturing cost is low, the service life is long, and the fault occurrence rate of the sanitary ceramic load testing machine is effectively reduced.

The present invention provides a comprehensive management and control method and system based on digital twins and multi-source heterogeneous data processing, the following steps: scan the site, obtain point cloud data of the surrounding environment, reconstruct the reverse modeling of the geometric shape and structure of the building based on the point cloud data, and calibrate the model obtained by reverse modeling with the site; optimize the model; use multi-source heterogeneous data fusion technology to process and classify the heterogeneous data of various professional rail transit, and realize standardized data processing. The comprehensive management and control method and system based on digital twins and multi-source heterogeneous data processing provided by the present invention realizes the accurate mapping of the digital twin space to the real station environment, can associate the three-dimensional model with the multi-dimensional data attributes, assist in realizing the core functions such as virtual inspection, risk control and scheduling decision-making, and improve the intelligent operation level of the station.

The invention provides a test device and a test method for realizing uniform tensile loading of a stiffened wallboard, the test device comprises a first clamp, a second clamp and a third clamp, the first clamp is located below a wallboard skin, the second clamp is located above the wallboard skin, the first clamp and the second clamp are in contact with the lower surface and the upper surface of the wallboard skin, and the third clamp is in contact with the lower surface and the upper surface of the wallboard skin. The wall plate skin is jointly clamped; the first clamp and the second clamp are simultaneously and directly connected with a testing machine; the second clamp is connected with the third clamp, and the third clamp is connected with the second clamp and the stiffened strip so that the load can be transmitted to the stiffened strip. The test method comprises the following steps: the support is provided with the stiffened wall plate; assembling the test device and the stiffened wall plate; the clamps and the stiffened wall plates are installed on a testing machine; and applying a load by the testing machine, and measuring the ultimate strength of the stiffened wallboard. According to the invention, the stiffened strip and the wallboard skin are directly connected with the testing machine through the clamp, so that the wallboard skin and the stiffened strip are uniformly loaded, overall uniform stretching is realized, and the stiffened wallboard is prevented from being broken at the root of the clamp firstly.

The utility model discloses automatic filling equipment for syringes. Comprising a filling rack, a tray sliding plate horizontally and linearly installed on the filling rack in a sliding mode, a tray positioning mechanism used for braking and positioning trays in tray containing grooves in the tray sliding plate, a tray feeding and discharging mechanical arm used for feeding and discharging the tray containing grooves, and a sliding plate driving device used for driving the tray sliding plate to slide intermittently. The device comprises a tray sliding plate, a filling mechanism used for filling liquid medicine into a row of injectors in a tray located on the tray sliding plate, a rubber plug feeding mechanism used for placing rubber plugs at the opening ends of the row of filled injectors, a rubber plug pressing mechanism used for pressing the rubber plugs into the injectors by set depth, a manipulator used for controlling feeding and discharging of the tray, and a tray positioning mechanism. The automatic filling device for the rubber plug is compact in structure, small in occupied space, high in filling efficiency of the injector and capable of preventing the rubber plug from being damaged when the rubber plug is pressed.

The utility model discloses an automatic isolation gown packaging system which comprises a conveying subsystem, a bag opening system and a sealing subsystem, the conveying subsystem is arranged at the head end of the system and connected with an isolation gown folding system, and isolation gown folded by the isolation gown folding system is clamped and transferred by the conveying subsystem. The sealing subsystem is arranged at the tail end of the system and is used for sealing and exhausting a packaging bag, and a bag opening system is arranged between the conveying subsystem and the sealing subsystem and is used for outwards opening a bag opening of the packaging bag and blowing air into the bag so as to ensure that the isolation gown can smoothly enter the packaging bag; the system integrates the functions of automatic bagging, bag sealing and the like, and is simple in structure, high in practicability, convenient to install and debug and wide in application prospect.

The portable pole-mounted transformer rapid transporting and lifting device comprises a transfer trolley, a supporting table is arranged above the transfer trolley, a lifting support is arranged between the supporting table and the transfer trolley, a transformer is placed on the upper side of the supporting table, a vertical shaft is fixedly arranged on the left side of the supporting table, and a transverse rod is arranged at the upper end of the vertical shaft; a sliding groove is formed in the bottom of the transverse rod, a translation motor is fixedly arranged at the left end of the sliding groove, a translation screw is arranged at the output end of the translation motor and located in the sliding groove, sliding sleeves are arranged on the outer side of the translation screw in a screwed mode, a hanging plate is arranged between the sliding sleeves, and an electric capstan is arranged on the upper side of the hanging plate. A twisted rope is wound on the outer side of the electric capstan, and a hook is arranged at the end of the twisted rope; according to the device, the efficiency and the safety of transformer transportation and hoisting operation are improved, the flexibility and the adaptability of the device are enhanced, the operation process is simplified, and the labor intensity is relieved.

The invention relates to the technical field of non-uniformly distributed oil and gas reservoir transformation, and particularly discloses a soluble bridge plug for a casing deformation well, which comprises a limiting joint, a connecting pull rod, a rubber sleeve, a slip assembly, a central pipe, a locking ring and an expansion component, and the expansion component comprises a first cone expansion piece and a second cone expansion piece; the first cone expansion piece is arranged on the central pipe in a sleeving mode and located between the rubber sleeve and the slip assembly, one end of the first cone expansion piece is used for limiting the other end of the rubber sleeve, the other end of the first cone expansion piece is used for expanding one end of the slip assembly, and the first cone expansion piece is connected to the other end of the connecting pull rod; the second cone expansion part is used for expanding the other end of the slip assembly, and the locking ring is connected into the second cone expansion part and slidably connected to the connecting pull rod. The soluble bridge plug can achieve effective packing in an ultra-large annular gap after passing through a casing change point, it is guaranteed that the casing change well passing through the casing change point transformation process is smoothly implemented, section loss is reduced, and the reservoir transformation efficiency is improved.

The utility model discloses a four-point bending test device for a full-size large-diameter pipeline. The four-point bending test device comprises a supporting unit and a loading unit, the loading unit comprises an oil cylinder fixing end, an oil cylinder is arranged at the lower end of the oil cylinder fixing end, a load distribution beam is arranged at the output end of the oil cylinder, and upper clamps are hinged to the lower ends of the two sides of the load distribution beam; the supporting unit comprises a base, two supporting parts are arranged on the base, lower clamps used in cooperation with the upper clamps are arranged at the upper ends of the supporting parts in a hinged mode, and the upper clamps are located between the two lower clamps. The device has the advantages of being stable in loading, free of influence of concentrated force on the pipeline, capable of improving test result analysis, simple in structure, low in manufacturing cost, not prone to damage, convenient to operate and the like.

The invention relates to the technical field of preparation of lipid nanoparticles, and particularly discloses proteinized lipid nanoparticles as well as a preparation method and application thereof. Dipalmitoyl phosphatidylcholine, cholesterol, triton X-100, absolute ethyl alcohol, a sodium citrate buffer solution and cell membrane protein are recombined to form cell membrane protein lipidosome with negative charges on the surface; the preparation method comprises the following steps: recombining 4-(N, N-dimethylamino) butyric acid (dilinoleyl) methyl ester, absolute ethyl alcohol, plasmids, triton X-100 and a sodium citrate buffer solution to obtain lipid nanoparticles with positive charges; and wrapping cell membrane protein liposome on the surface of the lipid nanoparticle by utilizing mutual attraction of positive and negative charges to obtain the proteinized lipid nanoparticle. The proteinized lipid nanoparticles can realize gene targeted delivery of specific cells such as suspension cells and primary cells, reduce non-specific uptake, and can be used as a gene delivery carrier.

The present invention discloses an end-to-end hyperspectral image classification method, system, device and terminal. In the spectral feature extraction branch in the network model, the SLIC function is combined with a graph convolutional neural network with a spectral attention mechanism, which makes great use of the spatial context information of the classified pixels. The spectral feature extraction branch adopts a lightweight high-discrimination spectral feature selection module to effectively select and extract features of hyperspectral image data based on the spectral dimension. The spatial feature extraction branch uses a two-dimensional stacking module for dimensional conversion, and most of the subsequent operations are based on two-dimensional convolution blocks. After obtaining the local and global spatial information of the hyperspectral spectrum, a regularized Transformer network is used to extract and fuse features from a global direction, and the feature information extracted by the two multi-head attention mechanism layers is fused and the cross entropy loss function is used to obtain the loss. The gradient is back-transmitted to update the weights to solve the problem of feature propagation capability degradation.

The invention discloses a microporous plastic particle material which is prepared from a prepolymer, a foaming agent, a catalyst and an antioxidant, and the prepolymer is prepared from the following raw materials in parts by mass: 40-60 parts of polyether polyol; 20 to 30 parts of isocyanate; 12-20 parts of a plasticizer; 1-5 parts of a cross-linking agent; 15 to 25 parts of filler; 10 to 15 parts of pigment; the micropore diameter of the plastic particles is 8-20 microns, and the hole depth is 10-25 microns. Reasonable preparation process parameters are designed by selecting raw materials such as a prepolymer, a foaming agent, a catalyst, an antioxidant and the like and the mass, so that the obtained plastic particles have microporous structures with certain pore diameters and pore depths, internal defects and stress concentration points are reduced, the material can bear loads more uniformly when subjected to tensile force, and the tensile strength of the material is improved. The stress concentration of the material under the action of external force is effectively relieved, so that when the material is stretched, the stress can be more uniformly distributed, the rapid fracture caused by overlarge local stress is reduced, the strength and the elasticity of the material are improved, and a wider application scene can be achieved.

The utility model relates to the technical field of automatic material conveying equipment, in particular to a multi-specification compatible modularized magazine type automatic material feeding mechanism which comprises a first bearing plate and a second bearing plate which are arranged in parallel, and the first bearing plate, the second bearing plate and two connecting plates define a containing cavity. The first bearing plate and the second bearing plate are each provided with a strip-shaped containing part, and the two ends of materials contained in the containing cavity are contained in the strip-shaped containing parts of the two bearing plates respectively. A movable first limiting assembly is arranged at one end of the first bearing plate, a movable second limiting assembly is arranged at the other end of the second bearing plate, and the first limiting assembly and the second limiting assembly are used for opening and closing the openings in the two ends of the containing cavity respectively. According to the feeding mechanism, through the unique design of the containing cavity and the limiting assembly, compatibility of materials of multiple specifications is achieved, operation is convenient, it is guaranteed that the materials are conveyed stably, and the production efficiency is improved.

The utility model belongs to the technical field of automobile production line equipment, especially relates to a trolley delivery rack, it is composed of side frame one, side frame two, upper layer roof beam, lower layer roof beam, side frame one, side frame two are set up oppositely, and upper layer roof beam, lower layer roof beam are set up between side frame one, side frame two, side frame one, side frame two structure are same, are all composed of stand, upper connecting beam, lower connecting beam, and stand sets up in both ends, and upper connecting beam, lower connecting beam are connected between the stand, upper layer roof beam, lower layer roof beam, structure is same, all are rectangular tubular parts, and two ends are made with assembly screw hole on it, and its top surface oppositely sets up limit block one, limit block two. The utility model trolley delivery rack structure design scientific and reasonable has the advantages such as stable and firm structure, larger capacity, can fully utilize loading space, convenient loading and fixing, is a kind of trolley delivery rack with higher innovation.

The utility model discloses a main undercarriage structure bearing test device which comprises a test bench, a side beam, a front beam, a top beam and a rear beam, the front beam and the rear beam are arranged at the front end and the rear end of the test bench, the side beam is arranged on one side face of the test bench, the top beam is installed on the top between the front beam and the rear beam and arranged on the top of the test bench, and the front beam and the rear beam are arranged on the test bench. A column clamp is arranged on the test bench, a test piece is clamped on the column clamp, a false wheel clamp is installed on the test piece, a base of a loading actuator cylinder adopts a universal joint form, the end part of the loading actuator cylinder adopts a fisheye bearing form, stable loading of a load can be realized, and it is ensured that the load direction is not changed under the condition of small deformation. The top beam, the front beam and the rear beam are supported in a stud mode, the vertical height of the top beam can be conveniently adjusted, supporting is provided under the condition that the load direction changes, and the bearing capacity and stability of the structure are improved.

This invention discloses a method for constructing a multi-layered assembly of engine room sections and a ship constructed using the same method. The method includes the following steps: S1, manufacturing engine room sections and pre-assembling them off-site to form pre-assembly engine room sections; S2, painting the pre-assembly engine room sections in a painting workshop; S3, transporting the pre-assembly engine room sections and assembling them locally to form the complete engine room section; S4, mounting the complete engine room section onto the ship's hull via a dry dock. This method can reduce manufacturing costs and difficulty. Off-site pre-assembly and integrated painting improve site utilization efficiency. Through simulation prediction, inverted manufacturing of engine room sections and application of reverse pre-compensation can reduce corrections. By setting up inverted welding of engine room sections, no additional scaffolding is needed, reducing costs. By setting up the flipping of engine room pre-assembly sections, the number of flipping and lifting / disassembling operations is reduced. By aligning the joints in the longitudinal direction, structural continuity and assembly accuracy are ensured.

The main machine module comprises a machine shell and a machine core, a mounting cavity is formed in the machine shell, the machine shell is further provided with an opening communicated with the mounting cavity, the machine core is mounted in the mounting cavity, and the machine core comprises a water pump, a water inlet pipe and an adapter. The two ends of the water inlet pipe communicate with the water pump and the adapter correspondingly, and the adapter is fixedly connected with the machine shell. According to the embodiment of the invention, the opening is formed in the shell, and at least the adapter is mounted in the mounting cavity through the opening, so that the shell does not block the process of mounting the adapter in the mounting cavity, the adapter can be conveniently and smoothly mounted in the mounting cavity from the opening, the stability of assembling the adapter and the water inlet pipe is improved, and the assembling efficiency is improved.

The invention discloses an assembling method of a negative-clearance three-row roller variable pitch bearing. The assembling method comprises the following steps: (1) determining a target heating expansion amount of a first outer ring; (2) a heating belt is wound on the outer circle face of the first outer ring, multiple dial indicator measuring heads make contact with a radial roller path of the first outer ring, and the heating expansion delta d of the first outer ring is measured and calculated in the heating process; (3) the radial rollers and the radial retainers are adhered to the radial raceway of the inner ring through lubricating grease; (4) quickly assembling a first axial roller and a first axial retainer on a first axial raceway of the first outer ring after the heating expansion reaches the standard; (5) hoisting the inner ring provided with the radial roller and the radial retainer into the first outer ring; (6) a second axial roller and a second axial retainer are arranged in a second axial roller path of the second outer ring; (7) mounting an O-shaped sealing ring on the second outer ring by using lubricating grease; and then the second outer ring and the first outer ring are butted and fixed, and a sealing ring at the end part of the bearing is mounted. The method can realize hot assembly of the bearings, and has the characteristics of safety, effectiveness, simplicity and practicability.

The invention belongs to the technical field of biological medicine, and discloses an enteritis targeted probiotic delivery system and a preparation method and application thereof, the system comprises: i) a recombinant plasmid for coding an anti-inflammatory functional protein, the plasmid comprising an anti-inflammatory peptide fragment, a surface protein modification and an antibiotic switch; ii) Escherichia coli chassis bacteria which are subjected to genetic engineering modification and have the capability of high yield of outer membrane vesicles; and iii) introducing the recombinant plasmid into the escherichia coli chassis bacterium to obtain a recombinant engineering bacterium. The delivery system disclosed by the invention can target intestinal inflammation parts, deliver anti-inflammatory proteins through the outer membrane vesicles, and specifically release anti-inflammatory factors in an inflammation microenvironment, so that intestinal inflammation response is relieved; according to the present invention, the method can achieve the precise targeting on the intestinal inflammation, can effectively control the remote delivery and the continuous secretion of the anti-inflammatory protein in space and time, has advantages of strong targeting property, lasting effect, small side effect and the like, and provides the new strategy for the safe and efficient treatment of the intestinal inflammation diseases.

The utility model provides a sleeve shaft boxing device which comprises a supporting frame, a tray base is arranged on the supporting frame, a finished product tray is installed on the tray base, and a plurality of installation grooves used for containing finished sleeve shafts are formed in the finished product tray in an arrayed mode. The moving and mounting mechanism is mounted on the supporting frame and arranged on one side of the finished product tray, and the moving and mounting mechanism is used for grabbing the sleeve shafts in the mounting grooves and putting the sleeve shafts into the packaging box; the cover pressing mechanism is installed on the tray base and comprises a pair of first driving devices, overturning shafts are installed on the first driving devices and used for driving the overturning shafts to rotate around a first axis, the first axis is parallel to the top face of the tray base, and limiting pieces are installed at the two ends of each overturning shaft correspondingly; the limiting piece is used for limiting the inward turning angle of the packaging box cover. According to the device, the box cover of the packaging box can be limited during sleeve shaft boxing, and the situation that the box cover of the packaging box is turned inwards to affect sleeve shaft boxing is avoided.

The application belongs to the technical field of wind tunnel test, and discloses a semi-mould loading device control system and a control method thereof. The semi-mould loading device control system is used for controlling four electric cylinders of the semi-mould loading device, and realizes Fx, Fy, Mx, My and Mz value loading of the semi-mould balance through the four electric cylinders. The semi-mould loading device control system takes a main control computer and an embedded ARM controller as a core control unit, is responsible for collection and processing of all signals, controls a running position of the electric cylinder, and has a prompt function of motion and state. The semi-mould loading device control system comprises the main control computer, the embedded ARM controller and control circuits corresponding to the electric cylinders. The control method comprises power-on self-checking of the control system, load rationality inspection, calculation of a tensile and compressive force sensor target value, current loading direction loading, current loading direction unloading, loading direction replacement and completion of all load group loading. Through automatic control, simple and convenient operation is realized.

The invention provides a mounting table capable of stably mounting an article. A mounting table (D) is provided with: a shelf (A) having a mounting surface (c) on which an article (B) is mounted; a support body (S) that supports the shelf (A); and a magnet (T) disposed on the support body (S) and fixed to the wall surface (M). The support body (S) is provided with a base part (1) having an upright plate-like portion (11) extending in the vertical direction, and a magnet (T) is provided on the rear surface side of the base part. The support body (S) is provided with an inclined support section (22) which is positioned rearward of the standing plate-like section (11) and which is inclined so as to be gradually positioned downward as it goes rearward, and the rear end of which is in contact with the wall surface (M).

The application optimizes the structure of the electronic expansion valve, so that the interface part of the valve body comprises a matching part and a step part, the matching part comprises a first matching part and a second matching part, the first matching part is closer to the step part than the second matching part, the bushing is sleeved on the cross connecting pipe and fixedly connected with the cross connecting pipe, the bushing comprises a cylindrical part, the first matching part is tightly matched with the cylindrical part, the second matching part is gap matched with the cylindrical part, the cross connecting pipe comprises an end face part, the end face part directly or indirectly abuts against the step part, when the cross connecting pipe is installed with the interface part, the second matching part plays a guiding role in pre-positioning of the bushing, so that the cross connecting pipe can be relatively smoothly installed in the interface part to realize the fixed connection with the valve body.