22results about How to "Small structural deformation" patented technology

The invention discloses a workpiece table of a proximity contact type exposure machine. A horizontal driving device has a degree of freedom of movement along an X-axis direction and a Y-axis direction; the rotating table has the freedom degree of rotating around the central axis of the rotating table. The lifting table is arranged above the rotating table and has the degree of freedom of moving in the Z-axis direction; the Z-axis voice coil motor is arranged between the rotating table and the lifting table and used for driving the lifting table to move in the Z-axis direction. The ball bowl leveling assembly is arranged between the wafer carrying table and the lifting table and comprises a ball bowl seat with a bowl-shaped cavity and a ball head matched with the bowl-shaped cavity; a concave cavity is formed in the bottom of the bowl-shaped cavity; the spherical surface of the ball head is in sliding sealing fit with the spherical inner wall surface of the bowl-shaped cavity and seals the concave cavity; the mask frame is arranged above the wafer carrying table. According to the invention, the relative position and posture between the mask plate and the wafer can be adjusted, the accurate control of the leveling process is realized, the high-precision movement of four degrees of freedom of X / Y / Z / RZ is effectively realized, the accurate control of the leveling contact force is realized, and the practicability is high.

The present invention discloses an air-suction seeding device, including a seeding device housing, a built-in fan, a driving motor, a transmission intermediate wheel, a transmission internal gear, a transmission intermediate wheel bearing, a closed-wind grinding block assembly, a seeding disc and a seeding device cover. The air-suction seeding device described in the present invention has a shaftless design for the seeding device and a built-in fan. The seeding device housing is both a bellows of the fan and a negative pressure chamber of the seeding device. The motor directly drives the inner gear ring, so that it has a deceleration function. The air-suction seeding disc adopts a cup cover structure and is installed without a shaft. The seeding disc can seed forward and sideways, which solves the problem of matching with a CNC seeding host. The whole machine is easy to repair and maintain, the sowing mode is easy to change, the adaptability to the size and specific gravity of the seed grains is strong, and the advantages of reducing seed grain breakage and reducing the missed sowing rate are improved. The efficiency of farmland operations is improved, and the increase in crop yield and income is achieved, which is of great significance to the development of large-scale high-precision agriculture.

The invention relates to the technical field of box girder bottom web plate manufacturing, in particular to a stirrup clamping longitudinal bar arranging mechanism which comprises a gantry support, an arranging part, a longitudinal bar clamping part and a longitudinal bar clamping part. Comprising an outer side longitudinal bar arranging mechanism, a stirrup fixing mechanism and an inner side longitudinal bar arranging mechanism which are sequentially installed from the two ends of a gantry cross beam to the middle. The stirrup clamping and longitudinal bar arranging mechanism is stable in structure, can achieve smooth coherence and stability in the working process, is beneficial to improving the machining quality and efficiency of a box girder reinforcement cage, achieves the stirrup clamping and longitudinal bar arranging functions, and is beneficial to reducing structural deformation and guaranteeing the box girder production quality; the air cylinder is arranged outside, debugging is convenient, practicability and convenience are improved, and the safety coefficient can be improved.

The utility model relates to a coffee machine which comprises a frame, a brewing device assembly and a brewing plug assembly, the brewing device assembly is rotatably arranged on the frame, the brewing plug assembly is obliquely arranged in the frame relative to the vertical direction, in the state of brewing coffee, the brewing device assembly rotates to be right opposite to the brewing plug assembly, and the brewing plug assembly is arranged in the frame relative to the vertical direction. The frame is further provided with a positioning piece, the positioning piece is provided with a positioning groove allowing the exposed end of a cup cylinder of the brewing device assembly to be screwed in, the cup cylinder is screwed in the positioning groove, so that the brewing device assembly is positioned at the position right opposite to the brewing plug assembly, and meanwhile the brewing plug assembly is screwed in the positioning groove. And the positioning piece is limited on the cup cylinder along the moving direction of the brewing plug. Compared with the prior art, the structure is simple, the brewing device assembly is accurately and conveniently positioned, and part of acting force applied to the brewing device assembly by the brewing plug assembly can be borne in the extraction process, so that the structural deformation of the brewing device assembly can be slowed down to a certain extent.

The invention discloses an inhaul cable connecting device and an inhaul cable connecting structure thereof. The inhaul cable connecting device comprises a spacer connecting mechanism and a profile connecting mechanism. The spacer connecting mechanism comprises a spacer with an adjustable length and hardware fitting inhaul cable connecting pieces connected to the two ends of the spacer. The hardware fitting and inhaul cable connecting piece comprises a hardware fitting and inhaul cable fixing assembly and a hardware fitting fixing plate, the hardware fitting and inhaul cable fixing assembly is used for being detachably fixed to an inhaul cable, and the hardware fitting fixing plate is rotatably connected to the end of the spacer plate and detachably fixed to the spacer after rotation. And the two can be fixed through a detachable structure after relatively rotating. A spacer connecting mechanism and a profile connecting mechanism are combined, and a multi-dimensional and stable stress system can be built in space through connection of spacers and profile connecting rods with inhaul cables in different directions.

This invention discloses an optimization design method for S-curve nozzles used in aero-engines that considers structural deformation, belonging to the field of aero-engines. The method selects key geometric parameters of the S-curve nozzle as characteristic parameters, chooses the structural deformation value at a characteristic location and two aerodynamic performance parameters as objective functions, then conducts orthogonal experimental design and constructs a response surface model based on the characteristic parameters and objective functions. After each optimization step, a cyclical evaluation is performed to obtain the final optimization result. This invention solves the problem of high aerodynamic performance loss caused by large structural deformation in S-curve nozzles used in aero-engines in existing technologies.

The present invention relates to a self-resetting device with multi-stage self-adjustment of rigidity, wherein a guide rod passes through an upper movable plate, an upper outer concave cylinder, an upper inner concave cylinder, a lower inner convex cylinder, a lower outer convex cylinder, and a lower movable plate inside an outer cylinder from top to bottom; the guide rod has abutment surfaces with the upper surface of the upper movable plate and the lower surface of the lower movable plate respectively; the lower end of the outer cylinder is fixed to a lower connecting member, and the lower connecting member is provided with a reinforcing rib cylinder extending upward, and the upper end of the reinforcing rib cylinder limits the downward movement of the lower movable plate; the upper inner spring is sleeved outside the guide rod and installed between the outward flank I and the upper movable plate; the lower inner spring is sleeved outside the guide rod and installed between the lower movable plate and the outward flank IV; the outer spring is sleeved outside the guide rod and installed between the upper outer concave cylinder and the lower outer convex cylinder. The device can automatically adjust its own performance according to the external excitation effect and structural dynamic response characteristics currently received by the structure, and solve the engineering problem of the single applicable scene of the current self-resetting device.

The present invention provides a solid fuel production system having a sewage sludge solid fuel deodorizing heat treatment device, including a mixer mixing sludge or an additive to produce a first mixture; a first dryer performing first drying in such a manner that the first mixture supplied from the mixer reaches a first moisture content; a second dryer producing a dried mixture of a second moisture content by heating and drying the first mixture of the first moisture content; a former molding the dried mixture by pressure molding; and a heat treatment device performing heat treatment on the solid fuel put into the inside after molding is completed to remove odor generated from the solid fuel molded in the former.

The utility model discloses a kind of bulldozing shovel structure and small excavator for small excavator, bulldozing shovel includes left bulldozing arm, right bulldozing arm, crossbeam, shovel body, the crossbeam is connected between left bulldozing arm, right bulldozing arm, left bulldozing arm, right bulldozing arm tip connects shovel body, left hinge point seat is welded and connected to the end of left bulldozing arm away from shovel body;Right hinge point seat is welded and connected to the end of right bulldozing arm away from shovel body, the crossbeam is provided with hinge lug plate;Left bulldozing arm, right bulldozing arm are rectangular steel tube structure.The utility model is to the present situation that small hydraulic excavator bulldozing shovel structure is not good, optimization innovation design is carried out, manufacturing cost is reduced, structural strength is optimized, structural deformation is reduced, the purpose of reducing cost and increasing efficiency is achieved, improve bulldozing shovel performance, improve bulldozing shovel quality, extend its service life cycle.

A kind of charging device for sharing massage device storage device, including outer casing, the storage box for carrying waistband type massager is retractably arranged in outer casing, the power of battery is guaranteed by external socket, the bottom of storage box is fixedly provided with support plate, support plate is formed with the load groove for placing waistband type massager at the center of storage box, the charging port for charging wire to go out is opened in the bottom center of load groove;Between battery and charging port, charging wire is provided, charging wire includes charging head in charging port and soft wire for connecting charging head and battery.The beneficial effects of the utility model are: charging port is set in the bottom center of load groove, optimization returns process, user does not need additional adjustment position to aim at charging head, improves convenience;Soft wire connects charging head and battery, can flexibly bend or stretch when storage box retracts and moves.

The present invention provides a support structure suitable for superconducting magnets, a superconducting magnet and a maglev train, which can solve the strength problem and heat leakage problem of small-sized support structures. The support structure includes: a main structure, a first and a second fixed cover plate assembly, a first and a second connecting assembly, a first and a second supporting body, the main structure is a tubular structure made of composite materials, and is divided into a first contraction section, an equal straight section and a second contraction section with smooth transition in its axial direction, the first and the second contraction sections are both trumpet-shaped, and the equal straight section is a hollow cylindrical tube; the first and the second fixed cover plate assemblies are circumferentially fitted on the outside of the first and the second contraction sections; the first connecting assembly connects and fixes the first fixed cover plate assembly and the first contraction section to the inner groove of the superconducting magnet; the second connecting assembly connects and fixes the second fixed cover plate assembly and the second contraction section to the outer groove of the superconducting magnet; the first supporting body is sleeved in the first contraction section; the second supporting body is sleeved in the second contraction section.

The utility model relates to the technical field of flue gas purification equipment, in particular to flue gas purification equipment for waste incineration power generation, which comprises a water pipe and a casing component, a filter component is fixedly connected to the inner side of the casing component, a vibration generating component is mounted on the inner side of the filter component, and a water inlet pipeline and a water outlet pipeline are fixedly connected to the front end of the filter component. A spring plate, a metal partition plate, a metal pipe and an embedded pipe are fixedly connected to the inner side of the metal shell, the vibration generating assembly comprises a shaft column, the shaft column is rotationally connected to the inner side of the vertical plate, turbine blades are fixedly connected to the outer side of the shaft column, a sleeve is fixedly connected to the outer side of the shaft column, a spring is fixedly connected to the outer side of the sleeve, and a driving hammer is fixedly connected to the end, away from the sleeve, of the spring. According to the flue gas purification device, the problem that the purification quality is affected due to the fact that the hole diameter of the filter screen is increased due to high-temperature flue gas is solved, and the stability and the reliability of the flue gas purification effect are ensured.

The utility model discloses a three-drawer medicinal material box convenient to use, and relates to the technical field of box body products. The device comprises a medicinal material box, a hinge is arranged at the bottom of the medicinal material box, a box door is hinged to the bottom of the medicinal material box through the hinge, a medicinal material drawer is arranged in the medicinal material box, a clamping mechanism is arranged at the top of the medicinal material box, and the whole material of the medicinal material box is a carbon fiber composite material. The medical material box is integrally made of carbon fiber composite materials, so that the medical material box has high strength and rigidity and can resist high-strength loads, the medical material box is made of carbon fiber composite materials, and the medical material box is convenient to use, safe and reliable. And meanwhile, the corrosion resistance is good, and different kinds of medicinal materials can be separately stored through the arrangement of the three sets of medicinal material drawers.

The utility model relates to a Z-axis movement driving structure of a vertical machine tool, which comprises a mounting bottom plate, a spindle mounting seat, an electric spindle, a driving motor, a Z-direction guide rail and a balance cylinder, the Z-direction guide rail is fixed on the mounting bottom plate, and the spindle mounting seat is slidably mounted on the Z-direction guide rail and can move up and down along the Z-direction guide rail under the action of the driving motor. The driving motor is mounted on the mounting bottom plate; the electric main shaft is mounted on the main shaft mounting seat; the two balance cylinders are arranged on the two sides of the motorized spindle respectively, cylinder bodies of the balance cylinders are connected with the mounting bottom plate, and cylinder rods are connected with the spindle mounting seat; positive pressure air is introduced into the balance air cylinder to provide upward pulling force. The balance cylinder is arranged on the Z-axis moving structure, so that the load rate of the Z-axis linear motor during Z-axis reciprocating motion is effectively reduced, a reverse gap is eliminated, and the machining precision of a machine tool can be effectively ensured.

The present invention discloses a device and method for safely dismantling a hanger, and belongs to the technical field of arch bridge structures. It includes a hanger and a beam body, and a dismantling structure is arranged around two of the hangers, and four top corners of the dismantling structure are all arranged with double-jointed channel steels; it also includes a protective net, and the protective net is arranged between adjacent double-jointed channel steels; the protective net is provided with an operation port, and when cutting the hanger, the bottom end of the double-jointed channel steel is fixedly connected to the beam body, and a steel strand is arranged on the inner side of the double-jointed channel steel, and the double-jointed channel steel and the hanger are fixedly connected through the steel strand to form a lateral constraint. The cutting operation is performed through the operation port, and a moving wheel is also arranged at the bottom of the device, so that it can be conveniently moved to the next area for operation when the dismantling is completed, and the device uses simple materials, and the dismantling process has a high degree of visualization, is safe and reliable, and is convenient for standardized construction, while ensuring the safety of the operators, and can be used cyclically.

The invention provides a 6-series aluminum alloy for semiconductor equipment and a preparation method of the 6-series aluminum alloy, and aims to improve the mechanical property and the stability of the aluminum alloy in a high-temperature and high-corrosion environment. The aluminum alloy is prepared from magnesium, silicon, copper, manganese, chromium, zinc, iron, titanium and aluminum through the steps of smelting, refining, casting, homogenizing annealing, hot rolling, cold rolling, heat treatment and the like. By optimizing the alloy components and the heat treatment process, the prepared aluminum alloy has excellent high temperature resistance and corrosion resistance and low thermal expansion coefficient, and high precision and reliability can be kept in the complex working environment of semiconductor equipment. In addition, the surface is subjected to chemical polishing and anodic oxidation treatment, the surface hardness and corrosion resistance of the material are further improved, and the material is suitable for key structural parts in semiconductor equipment.

The utility model relates to the technical field of detectable explosion-proof temperature sensing devices, and solves the problems that when a temperature detection sensing device is used for detecting the temperature in the environment of preparing or exploiting petroleum gas or natural gas, the petroleum gas or the natural gas is possibly ignited due to high temperature or electric sparks generated by the temperature detection sensing device during working, and the safety of the petroleum gas or the natural gas is influenced. According to the scheme, the problem that the explosion-proof effect of the temperature detection sensing device is poor is solved. The detectable anti-explosion temperature sensing device comprises a temperature sensor, the surface of the temperature sensor is sleeved with a heat insulation sleeve, the top face of the heat insulation sleeve is provided with an air inlet pipe, a gas one-way valve is installed in the air inlet pipe, the top end of the gas one-way valve is connected with a sealing cover through threads, and a sealing rubber ring is fixed to the inner top wall of the sealing cover; a closed cavity filled with inert gas is formed in an interlayer between the heat insulation sleeve and the temperature sensor, an annular sealing gasket is fixed to the tail end of the heat insulation sleeve, and the inner ring of the sealing gasket is in interference fit with the detection end of the temperature sensor.

The invention relates to the technical field of earthquake resistance of a building main body structure, in particular to a method for installing an anti-seismic isolator in a building main body mechanism, which is characterized in that the anti-seismic isolator is installed on a building foundation, and the anti-seismic isolator is stably connected with the building foundation by means of pre-embedded bolts, leveling screws, high-strength grouting materials and the like. The anti-seismic isolator comprises an upper connecting plate, a lower connecting plate, a lead core, a rubber layer and a steel plate structure, seismic energy is absorbed through the lead core, the rubber layer provides a low-damping seismic isolation effect, and therefore impact of an earthquake on an upper structure of a building is effectively reduced. The process is suitable for various building types, especially hospitals, schools, shelters and the like in high-intensity earthquake areas. Through the installation technology, deformation and damage of the building in an earthquake can be reduced, the anti-seismic performance of the building is remarkably improved, and the safety of the building in a strong earthquake is ensured. The construction method is simple, high in installation precision, remarkable in construction efficiency and suitable for aseismic design and construction of large-scale buildings.

The invention relates to the technical field of rail transit, and provides an anti-seismic structure of a ballastless track system beam end and a construction method thereof.The anti-seismic structure of the ballastless track system beam end comprises a sliding way and a sliding block, and the sliding way is arranged on the top face of a bridge pier and arranged in the transverse bridge direction; the sliding block is static in the sliding way in the initial state, the beam body corner can drive the sliding block to move along the sliding way, and the sliding block is driven to move in the reverse direction to limit expansion of the beam body corner. The structure can effectively limit the corner displacement of the beam body and reset as much as possible, so that the displacement problem of the track plate is solved, the anti-seismic performance is improved, the structural deformation of the beam end is reduced, and the operation safety is improved.

The utility model discloses a horizontal support and steel beam connection reinforcing member in constructional engineering, which comprises a steel beam, horizontal beams are fixedly connected to two sides of the steel beam, two angle brace connecting plates are arranged on the front side and the rear side of the steel beam in a penetrating manner, and the two angle brace connecting plates are fixedly connected with the steel beam through bolts. Two reinforcing plates are arranged on the front sides and the rear sides of the two horizontal beams correspondingly, mounting plates are attached to one sides of the four reinforcing plates correspondingly, connecting pieces are fixedly connected to the left side and the right side of the steel beam correspondingly, U-shaped plates are fixedly connected to the tops of the two horizontal beams correspondingly, and inclined rods are fixedly connected to the sides, opposite to the U-shaped plates, of the connecting pieces correspondingly. Supporting pieces are arranged at the bottoms of the two horizontal beams. Through the cooperative use of the angle brace connecting plate, the reinforcing plate and the inclined rod, the joint of the connection of the steel beam and the horizontal beam is more stable, the overall stability of the steel beam and the horizontal beam is effectively enhanced, and the fatigue damage of the connection of the steel beam and the horizontal beam caused by local stress concentration can be avoided.

The invention discloses a graph-based three-dimensional scanning indoor plane graph reconstruction method, which is characterized by comprising the following steps of: (1) acquiring an open source data set; (2) constructing a primitive estimation network SeqPNet to obtain a wall point heat map; the primitive estimation network SeqPNet comprises a wall heat map regression layer, a room heat map regression layer and a point heat map regression layer; sequentially generating three types of heat map wall B, room R and point P masks to obtain a wall point heat map; (3) triangularizing and triangularly pruning the wall point heat map to obtain an initial map; (4) solving an optimal sub-graph according to the initial graph to obtain a final reconstruction structure; (5) evaluating a reconstruction result; according to the method, details are effectively captured, and the overall integrity of the planar graph is kept.