62results about How to "Guaranteed stiffness" patented technology

This invention belongs to the field of industrial UV inkjet printing consumables technology, specifically relating to a UV white inkjet ink, its preparation method, and its application. The UV white inkjet ink contains aliphatic polyurethane acrylate, silane-modified epoxy polyester, reactive diluent monomer, photoinitiator, adhesion promoter, white pigment, and optional additives. The silane-modified epoxy polyester is prepared by the following method: esterification of a diol compound with itaconic acid, followed by a mercapto-olefin click reaction of the resulting unsaturated polyester polyol with mercaptosilane, and then a condensation reaction of the resulting silane-modified polyester polyol with halopropylene oxide to obtain the silane-modified epoxy polyester. The UV white inkjet ink provided by this invention has high adhesion to the substrate and is not easily peeled off after handling friction and outdoor exposure.

The invention provides a back door assembly and a vehicle, and relates to the field of vehicle engineering.The back door assembly comprises a back door outer plate and a back door inner plate, and the back door inner plate is connected with the back door outer plate; the back door inner plate is provided with an upper area, a lower area and a boundary beam arranged around the back door inner plate. The section of the upper area protrudes towards the direction close to the back door outer plate; the cross section of the lower area protrudes in the direction away from the back door outer plate, and at least the cross section of the transversely-arranged edge beam is in a step shape. Thus, the section of the upper area protrudes towards the direction close to the back door outer plate, the width of a window frame opening can be shortened on the premise that the view field is guaranteed, and the rigidity of the area is guaranteed; the section of the lower area protrudes in the direction away from the back door outer plate, so that the distance between the back door inner plate and the back door outer plate is increased, and a large storage space is formed in the back door. Meanwhile, the cross section of at least the transversely-arranged edge beam is in a step shape, and the torsional rigidity and the collision impact resistance of the back door assembly are further improved.

This invention belongs to the field of semiconductor positioning technology, and specifically relates to a flexible hinge and a semiconductor positioning device. The flexible hinge includes a hinge body, a first fixing part, a second fixing part, and a connecting part. The connecting part is disposed between the second fixing part and the hinge body, and the connecting part is capable of deformation along a third direction to compensate for assembly deviations between the fixing device and the moving device in the third direction. When installing the flexible hinge, the first fixing part and the second fixing part are connected to the fixing device and the moving device respectively. Under the action of preload, the connecting part can automatically deform along the third direction to compensate for assembly deviations between the fixing device and the moving device without manual adjustment. Furthermore, the connecting part can limit local deformation caused by the preload to the connecting part, preventing it from being transmitted to the moving device, thereby further ensuring the assembly accuracy between the fixing device and the moving device.

The application discloses a kind of for TOD fire lane air ramp bridge type high formwork construction method, including drawing deepening blanking, measurement lofting, foundation setting, steel column installation, longitudinal, transverse beam installation, platform steel plate installation, high formwork frame body erection and concrete pouring.The application is provided with diamond platform steel plate on the top of steel platform, and the steel platform structure of rhombohedron is formed following the scope of ramp formwork, so that the space utilization of high formwork frame body sitting on the steel platform is maximized, and the net height of at least 6m, net width of at least 4.5m door-shaped hole is formed by transverse i-shaped steel beam and steel column located on both sides of steel platform, and then all construction vehicles and fire vehicles can be smoothly in and out.

The application provides a tool state real-time monitoring and wear compensation integrated intelligent turning tool. The integrated intelligent turning tool utilizes a vibration sensor and a force sensor to measure vibration and force in real time during turning, and based on a flexible hinge group, a certain artificial intelligence model is used to predict the wear state and remaining life of the turning tool, and a compensation value is fed back to a control system to control a piezoelectric driver to realize wear compensation. The integrated intelligent turning tool can realize real-time measurement and wireless transmission of vibration and force in turning to an upper computer, and can realize tool state monitoring, tool wear prediction and remaining life and other functions.

This utility model relates to the field of door lock unlocking and discloses an unlocking device. The unlocking device includes a handle rod and a insert. One end of the handle rod is fixedly connected to the insert, and the other end of the handle rod extends away from the insert. The end of the insert away from the handle rod has a plug-in portion, which is configured as a rectangular insertion slot suitable for fitting the square steel handle. The handle rod serves as the user's grip base, driving the insert to be inserted into the lock box. The plug-in portion is specifically inserted into the lock box, and its rectangular insertion slot ensures precise alignment and fitting with the square steel handle inside the lock box. By twisting the handle rod, the insert drives the square steel handle to rotate, thereby opening the lock cylinder inside the lock box and achieving the unlocking purpose. The extension design of the handle rod away from the insert helps to form an effective lever arm, making it easier for the user to apply force. The unlocking device provided by this utility model has a simple structure, is easy to operate, and has good applicability.

The invention provides a multi-dimensional force measuring platform elastomer, which comprises an inner support, a plurality of independently arranged outer supports, a circumferential connecting beam surrounding the inner support, and a radial connecting beam connected with the circumferential connecting beam and the outer supports or the inner support. The circumferential connecting beam is provided with a vertical first through hole, the radial connecting beam is provided with a vertical second through hole, and the radial connecting beam is further provided with an I-shaped beam structure or a transverse third through hole. The multiple sets of strain measuring elements are strategically arranged at different positions of the radial connecting beam, and measurement of force or torque of all dimensions can be achieved. Through innovative structural decoupling design and refined strain gauge arrangement, on the premise that rigidity is guaranteed, static force measurement precision and sensitivity are remarkably improved, theoretical decoupling is achieved, materials are reduced, and machinability is optimized.

The utility model discloses high -voltage area tower crown structure of high -rise building, including top floor, the outer surface fixed connection of top floor has tower crown base, the outer surface of tower crown base is equipped with support frame, the side face of support frame away from tower crown base is equipped with bottom layer partial pressure layer, the side face of bottom layer partial pressure layer away from support frame is equipped with middle layer partial pressure layer. The device is combined through honeycomb aluminum core filling body and light alloy steel frame, the overall weight of equipment is lightened, can effectively reduce the load of building whole, utilizes the cross -shaped reinforcing rib and reinforcing ring of support frame, can realize material efficient distribution while guaranteeing equipment rigidity, and the reduction of equipment structure dead weight can effectively reduce foundation cost, can effectively solve many traditional tower crown and adopt closed solid structure or heavy -duty decorative component, is easy to appear because own weight is too big, thereby increases building whole load, makes the problem of building cost increase.

The application discloses a modular prestressed steel wire winding type ultrahigh-pressure hydraulic machine host, and belongs to the technical field of hydraulic machines. The modular prestressed steel wire winding type ultrahigh-pressure hydraulic machine host comprises a host base, a lower beam winding with a steel wire rope is arranged on the host base, and further comprises a detection cavity arranged in the host base, a pressure sensor arranged in a pressurizing rod, and the pressure sensor is used for detecting the stress of the steel wire rope. The pressurizing rod is slidingly connected to the upper beam and the lower beam, the pressurizing rod is driven by an adjusting assembly to push the prestressed steel wire, the built-in pressure sensor and the display screen are combined to realize real-time stress monitoring, visual feedback and accurate adjustment, the operator can accurately restore the prestress of the steel wire to the design range according to the data of the display screen, the prestress attenuation problem is solved, and the rigidity of the rack is ensured.

The utility model provides an aircraft landing gear locking ring, and belongs to the technical field of aircraft landing gears, the aircraft landing gear locking ring comprises a left support arm, a right support arm, a first rotating shaft, a second rotating shaft, a reinforcing rotating shaft, a drum-shaped roller and a reset torsion spring, the left support arm and the right support arm are arranged in parallel, and the first rotating shaft and the second rotating shaft are respectively arranged at the upper end and the lower end of the left support arm and the upper end and the lower end of the right support arm; the reinforcing rotating shaft is arranged in the middle of the left supporting arm and the right supporting arm, the drum-shaped rolling wheel is installed on the first rotating shaft and located between the left supporting arm and the right supporting arm, and the drum-shaped rolling wheel can rotate relative to the first rotating shaft; a drum-shaped roller on the first rotating shaft is connected with the lock hook, and a second rotating shaft is connected with the undercarriage single-lug support; the reset torsional spring is installed on the second rotating shaft, abuts against the left supporting arm and the right supporting arm and is used for providing swing reset elastic force for the left supporting arm and the right supporting arm. The locking ring can independently keep lubrication in all rotating areas under the large-load and large-deformation environment, so that the self-adaptive locking function is achieved.

The embodiment of the utility model provides a top cover assembly of a vehicle and the vehicle, and belongs to the technical field of vehicle parts, the top cover assembly comprises a top cover cross beam and a top cover outer plate arranged on the top cover cross beam, one end of a side wall connecting plate is used for being connected with a side wall assembly of the vehicle, the other end of the side wall connecting plate is connected with the top cover cross beam, and the top cover cross beam is connected with the top cover outer plate. And the reinforcing piece is connected with the top cover outer plate and the side wall connecting plate so as to support the top cover outer plate together with the top cover cross beam. According to the top cover assembly of the vehicle, the reinforcing piece is used for connecting the top cover outer plate and the side wall connecting plate, the reinforcing piece and the top cover cross beam jointly support the top cover outer plate, and therefore the structural strength of the top cover assembly is locally enhanced, redundant materials are reduced, and the weight of the whole vehicle is reduced on the premise that the bending resistance of the top cover assembly is guaranteed.

The utility model relates to steel structure installation technical field provides a cup mouth foundation steel structure box type column fast device, including cup mouth foundation and steel box type column, the steel box type column sets up at cup mouth foundation top, all fixedly connected with the positioning board around the steel box type column, the cup mouth foundation top four corners place implants eight chemical anchor bolt, the positioning board all set up positioning hole corresponding chemical anchor bolt department, and chemical anchor bolt all sets up in the positioning hole inside, the chemical anchor bolt department sets up the matched leveling nut and gasket, the lower end between both sides of steel box type column and cup mouth foundation all sets up the limiting block. The utility model discloses, device can be through leveling nut can adjust the elevation size, can prevent the problem that elevation size deviation is bigger, can effectively improve construction progress and installation quality.

The utility model discloses a shield door bearing driving device which comprises a door machine beam and a guide rail, the door machine beam is formed by splicing a lintel beam and a middle beam, supporting feet used for being connected with stand columns are arranged at the two ends of the lintel beam and the two ends of the middle beam, and the guide rail is connected with the side wall of the door machine beam. In the utility model, the door machine beam and the guide rail adopt a splicing structure, the weight of each single body is reduced, the installation is easy, the length of each single body of the door machine beam is reduced to half of the initial length or even less, the section of the guide rail is reduced, and the transportation is convenient.

The present application relates to the packaging technical field, specifically to a kind of barrier material and its preparation method and composite film.The resin combination of PBAT resin, PLA resin and PDA resin is used as base material in the present application, and is combined with compatible agent, hydrotalcite compound and calcium stearate, which significantly improves the gas barrier property of barrier material, and can be used for heavy heat shrinkage packaging, to meet the lifting load demand in artificial transfer process.

This invention discloses a soil sampling cylinder, a soil sampler, and a soil sampling method, relating to the field of geological exploration technology. The invention includes a cutting blade, which is a hollow cylinder with a straight inner and outwardly inclined circular cutting edge at the front end, and a threaded connection at the rear end to a steel cylinder. The inner wall of the steel cylinder is stacked with ring cutters whose inner diameter matches that of the cutting blade. An anchor rod is fixedly installed on the lower surface of a pad, and the upper surface is fixedly connected to a horizontal adjustment component. The horizontal adjustment component is fixedly connected to an equipment box, and a guide sleeve is installed at the center of the equipment box. Guide grooves are evenly spaced around the guide sleeve, and a guide limiting component is slidably installed within the guide grooves. The equipment box is threadedly connected to the steel cylinder via a vertical pressure component. This invention provides a soil sampling cylinder, a soil sampler, and a soil sampling method, featuring automatic horizontal calibration, guide limiting, static pressure undisturbed sampling, and digital traceability of samples. It also significantly reduces the cost and material requirements of the cutting blade, laying the foundation for cost reduction and efficiency improvement.

The utility model discloses a metro station prefabricated water retaining ridge, an off-wall ditch water retaining ridge structure and a metro station structural slab reserved hole water retaining ridge structure, and belongs to the technical field of metro station drainage. The prefabricated water retaining ridge for the subway station is characterized by comprising a water retaining ridge body which is prefabricated by adopting reinforcing steel bars and concrete and has an L-shaped section, one right-angle side of the water retaining ridge body is a base, the other right-angle side of the water retaining ridge body is a vertical back, the bottom of the base is provided with an inward groove which extends from one end of the base to the other end of the base, and the water retaining ridge body is provided with an opening. The two ends of the base are each provided with a bolt hole, and a grouting hole communicated with the inward groove is formed in the middle of the upper portion of the base. The prefabricated water retaining ridge is simple in structure, good in overall stability, easy to install, convenient to construct and good in adaptability to site construction conditions.

The invention discloses a fabricated concrete structure strong anti-seismic structure system, and relates to the technical field of fabricated buildings. Comprising a column connecting assembly fixedly installed at the end of a column assembly, a beam connecting assembly fixedly installed at the end of a beam assembly and a beam-column joint connecting assembly which is fixedly installed on the column assembly and is a certain distance away from the end of the column assembly. The column connecting assembly at the end of one column assembly is fixedly connected with the column connecting assembly at the end of the other column assembly in a matched mode, and the beam connecting assembly at the end of the beam assembly is fixedly connected with the beam-column joint connecting assembly on the column assembly in a matched mode. The beam-column joint connecting assembly is directly and fixedly installed on the column assembly and is separated from the column connecting assembly at the end of the column assembly by a certain distance, the integrity of the position of the beam-column joint is guaranteed, and the rigidity and strength of the position of the beam-column joint are guaranteed.

The application discloses a tracked multi-stage link flexible mechanical arm system and relates to the technical field of special robots. The system comprises a tracked chassis, a controller fixed above the tracked chassis, a multi-stage link flexible mechanical arm installed on the top of the controller, and an end effector at the top end. The mechanical arm is formed by a plurality of rigid link units which are connected in series through cross shaft universal joints. The joints physically limit the axial rotation and allow the orthogonal bidirectional deflection. The controller is internally integrated with a wire driving mechanism. The driving cables penetrating through the link units are grouped and pulled to exert differential tension on different flexible arm sections. The application combines the high passability of the tracked chassis with the rigid-flex coupling characteristics of the discrete continuum mechanical arm, realizes the multi-stage independent control and cascading "S" shape serpentine obstacle avoidance of the mechanical arm in the three-dimensional space, and effectively improves the operation flexibility and load grasping capacity of the robot in the complex, narrow and unstructured environment.

The utility model belongs to the technical field of bridge telescopic water guide, and particularly relates to a railroad bridge telescopic water guide device which comprises section steel and a stainless steel water guide plate, the section steel is arranged on two adjacent bridge bodies, and the stainless steel water guide plate is arranged between the section steel on the two adjacent bridge bodies. The profile steel comprises profile steel A and profile steel B, the profile steel A is fixedly connected to a bridge body through an anchoring assembly, the profile steel B is pressed and buckled on the profile steel A to form a profile steel box body, and the stainless steel water guide plate is fixed between the profile steel A and the profile steel B; a dustproof cover plate is further arranged above the profile steel on every two adjacent bridge bodies and fixedly connected with the profile steel A. The profile steel is formed by pressing and buckling the profile steel A and the profile steel B, and is convenient, fast, safe and firm to install; the stainless steel water guide plate greatly prolongs the service life of the telescopic water guide device, and solves the problems that a rubber strip is prone to aging and weathering in the using process.

The invention discloses a heat shield riveting fixing structure and a mounting method thereof, the structure comprises a rivet, a heat shield, a gasket and an adjusting sheet, the heat shield is arranged on one side of the adjusting sheet, the gasket is arranged between the heat shield and the adjusting sheet, and the rivet sequentially penetrates through the heat shield and the gasket and then is connected with the adjusting sheet. By means of the structure, the riveting reliability of the rivet can be improved, it is guaranteed that certain high-temperature deformation is released in a reserved gap of the fixing portion of the heat shield, and the situation that local high-temperature gas leaks into a spray pipe adjusting piece and a heat shield interlayer due to large-area stress concentration, large deformation and crack chipping of the heat shield is avoided; the completeness of a cooling flow path at the adjustable nozzle adjusting sheet part is kept, and the use reliability of the adjustable nozzle adjusting sheet of the engine is ensured.

The application discloses a heat-resistant high-strength passenger car aluminum matrix composite brake disc and a preparation method thereof. The brake disc comprises an aluminum alloy base layer and a composite material friction layer combined through friction welding. The composite material friction layer comprises Al-Fe-V-Si aluminum alloy and reinforcing particles. The reinforcing particles are at least one of SiC, BN and TiC. The preparation process of the brake disc is as follows: placing the composite material friction layer on the base layer, adjusting the position and then welding through friction stir welding, and the brake disc is obtained. The brake disc combines the aluminum alloy base layer and the composite material friction layer through friction welding, which not only ensures that the brake disc has good toughness, but also improves the wear resistance and heat resistance, so that the overall mechanical properties of the aluminum matrix composite brake disc are better, and the reliability of the brake disc is improved.

The utility model discloses a steel structure building with integrated decoration module, including steel structure frame main part and the integrated module of setting in steel structure frame main part, steel structure frame main part is set up to make its bottom to be in the air, and the steel structure frame main part all is provided with open hole around, bottom and top, the bottom support steel beam of integrated module bottom is provided with being suitable for with steel structure frame main part connection, and the placing groove of being suitable for placing electromechanical system is set up on integrated module. It is convenient to install integrated module in steel structure frame main part through open hole, makes the installation not be restricted, and also can install from the side or bottom after steel structure frame main part is capped, has reduced the installation difficulty. Through placing groove, can install electromechanical system directly before decoration, only needs to connect the pipeline on electromechanical system with the power supply on the scene after entering the scene, need not carry out the opening and installation of electromechanical system in the construction site, has saved the massive construction procedure and manual labor of on -the -spot electromechanical installation.

The present application relates to a kind of parallel frequency large complex surface component ultrasonic vibration assisted grinding device and application, the device includes: indexing transmission system, ultrasonic vibration system and support shell component, wherein the rigid coupling of indexing transmission system connects outer indexing disc with transmission shaft, indexing rotation and locking are carried out during the grinding process of complex surface component, external ultrasonic power is connected with ultrasonic transducer group by electric slip ring;Ultrasonic vibration system includes sequentially connected parallel ultrasonic transducer group, transmission rod and amplitude bar;The vibration superposition effect of multiple ultrasonic transducers makes large mass complex surface component ultrasonic vibration, realizes large complex surface component ultrasonic vibration assisted high-efficiency precision grinding processing.Support shell component fixes ultrasonic device and grinding wheel on machine platform, guarantee system stiffness.The device can make large mass complex surface axial ultrasonic vibration, and after the grinding of single surface feature is completed, indexing circumferential rotation is carried out, and the precision grinding of entire complex surface component is completed.

The utility model discloses an assembled goods shelf which is composed of a goods shelf body and connecting pieces. The goods shelf bodies are arranged side by side and connected through connecting pieces. Each connecting piece comprises a supporting plate, a supporting rib plate and a buckle plate, the supporting plates are connected with the bottom plates of the adjacent goods shelf bodies, the supporting rib plates are arranged in the gaps, and the buckle plates are connected with the upper end edges of the adjacent goods shelf bodies. The connecting piece is simple in structure and standardized, an integrated installation system is formed, and the splicing difficulty is reduced. Vertical supporting of the supporting rib plates and horizontal fixing of the supporting plates and the buckle plates form a stable structure, the overall rigidity of the goods shelf is kept, and independent replacement of damaged parts is achieved. According to the design, through a detachable connection structure, the structural stability of the goods shelf system is guaranteed, and the requirements for rapid deployment and flexible adjustment are met.

The present application relates to the technical field of finite element modeling, in particular to a kind of chest impactor or dummy two-dimensional displacement sensor finite element modeling method.The present application includes: respectively carrying out geometric modeling and meshing for slide rail sleeve, support and other components;For slide rail sleeve, set up elastic-plastic material, for support, set up rigid material;Arrange node in measuring point, the most front end of slide rail sleeve and support interior, connect the node on measuring point, slide rail sleeve and support by BEAM unit;Between support, set up hinge that can only rotate around Z axis;For slide rail sleeve, set up self-contact to realize telescopic movement;Establish discrete unit from measuring point to different support center, for output one-dimensional or two-dimensional compression displacement data and rotation angle data;Calculate two-dimensional displacement component of measuring point relative to reference point.The technical scheme can accurately restore the actual working state of sensor, while ensuring the accuracy of mass distribution during dynamic compression.

The application discloses a method and device for determining a material distribution form of a superconducting magnet, the method comprising: obtaining a design model of the superconducting magnet; obtaining an electromagnetic force transmission path of the superconducting magnet according to the design model of the superconducting magnet; the electromagnetic force transmission path indicating that a maximum Mises stress of the superconducting magnet under a preset electromagnetic force is less than a first preset proportion of a material yield limit; obtaining a temperature material distribution form of the superconducting magnet according to the design model of the superconducting magnet; the temperature material distribution form indicating that a maximum Mises stress of the superconducting magnet under a preset boundary temperature condition is less than a first preset proportion of the material yield limit; and determining a comprehensive material distribution form of the superconducting magnet according to the electromagnetic force transmission path and the temperature material distribution form. According to the electromagnetic force transmission path and the temperature material distribution form, the superconducting magnet with better resistance to temperature stress and electromagnetic force can be obtained.

The invention belongs to the technical field of steel structure monitoring, and particularly relates to a rail detection device and method for a ship unloader large arm box girder, and the device comprises a device main body which is integrated with a detection sensor and a processing unit, and further comprises a rail system which is arranged in a box girder and spans a rib partition plate, and comprises a bearing frame and a rail body, the bottom of the track body is connected to the bearing frame, and the bottom of the bearing frame is connected with a horizontal wing of the L-shaped quick release structure. The L-shaped quick release structure comprises two L-shaped adapter plates, and each L-shaped adapter plate is composed of a horizontal wing and a vertical wing; the two L-shaped adapter plates are arranged on the two sides of the rib partition plate in the mode that the vertical wings are opposite. The vertical wings and the rib partition plates which are oppositely arranged are clamped and fixed, and rapid connection between the track system and the box girder rib partition plates is achieved. A modular rib-crossing track system is formed, and non-blind-area and high-precision scanning of a key structure below is achieved.

The present application relates to the field of nuclear power construction, and particularly relates to a passive high-position super-large pressure water tank of nuclear power plant based on the rigid-flexible coordination concept and a construction method thereof. The water tank comprises a pressure boundary and a device support. The construction method is as follows: secondary pouring is realized on the ring wall groove, upper support piers are arranged on the upper end of the support ring wall, and lower support piers are arranged on the lower end of the support ring wall; one end of the lower pull rod is connected with the lower support pier; the pressure water tank is hoisted and positioned; the support lug is hoisted and positioned, the position of each anchoring bolt is adjusted to be located in the middle position of the long circular hole in the support lug plate, and the vertical state is ensured, then the bolt holes at the bottom of the support lug are plugged, and grouting is performed; the upper pull rod is adjusted and positioned, and both ends thereof are respectively installed on the upper reinforcing ring of the support ring wall and the pressure water tank; and the lower pull rod is connected on the lower reinforcing ring of the pressure water tank. The present application can effectively cope with the contradictory requirements of the design under the conditions of earthquake and thermal expansion, ensure higher engineering implementability, and take into account the overall economy.

The utility model discloses a kind of force-sensitive trigger probe of annular microstructure optical fiber sensing, it is related to precision measurement technical field, to solve the integration of existing probe structure and FBG sensor generally not high, the problem of limited measurement accuracy improvement;A kind of force-sensitive trigger probe of annular microstructure optical fiber sensing, including support unit, support unit is fixedly connected with annular sensitive unit, the central position of annular sensitive unit is provided with trigger probe unit, annular sensitive unit includes several rings, and sensitive beam is arranged between adjacent rings and between trigger probe unit and nearest ring, and optical fiber grating sensing module is arranged on sensitive beam.The utility model technical scheme considers sensitivity and stiffness, through the combination of multi-ring structure and sensitive beam, both ensure overall stiffness, and realize high sensitivity strain detection by sensitive beam.