86 results about "Conical shell" patented technology

The invention discloses a prefabricated conical shell steel supporting structure capable of being hoisted for squat silo construction. The prefabricated conical shell steel supporting structure comprises a conical shell wall plate assembly, a ring beam assembly, a radial beam, a lifting lug assembly, an adjustable supporting assembly, an anti-swing assembly, a connecting assembly, an auxiliary positioning assembly and a sling connecting assembly. Core components such as the conical shell wall plate and the supporting framework are all prefabricated in a factory, the quality is controllable, splicing and hoisting are only needed on site, high-altitude erecting operation is greatly reduced, the high formwork erecting risk and the hidden danger of falling objects from high altitudes are reduced, hoisting stability is high, safety is improved, hoisting stress is dispersed through the lifting lug stiffening plates, and the hoisting efficiency is improved. The anti-swing assembly and the cable wind rope cooperatively control swing, it is ensured that the overall hoisting process is stable, structural collision and stress overload are avoided, the splicing precision is high, the adaptability is high, adjustability during installation is achieved through the adjustable supporting assembly arranged on the squat silo top, and it is ensured that the hoisted steel supporting structure can accurately fall on the preset position of the squat silo top.

The utility model discloses a solid stock bin capable of optimizing blanking efficiency, which belongs to the technical field of solid stock bins and comprises a straight tube section and a closing section positioned below the straight tube section. The inner diameter of the closing section is continuously reduced in the downward moving direction of the materials; the closing-in section comprises inclined flat plates located on the two sides of the vertical plane, and the two sides of the two inclined flat plates are connected through a circular-arc-shaped conical shell respectively. And the two arc-shaped conical shells and the two inclined flat plates are encircled to form a channel of the closing section. A traditional conical discharging mode is improved into a partial inclined flat plate discharging mode, and the size of an outlet and the inclination of an inclined flat plate are elaborately designed according to the characteristics of materials and the actual requirements of operation. The improvement aims at optimizing the blanking efficiency and ensuring that the materials can flow smoothly in the blanking process. Through the mode, the production efficiency can be effectively improved, and the conditions of material blockage and waste are reduced, so that the purpose of improving the overall production efficiency is achieved.

The invention provides a shell rib mirror image inclined hidden hole electric machining clamping and positioning tool and a using method thereof, and belongs to the technical field of electric machining tools. The problem that in the prior art, the requirements for electrode extension adaptation, hole axis orientation and reliable positioning cannot be met at the same time, and consequently the inclined dark hole electric spark machining precision and efficiency are difficult to guarantee is solved. A threaded bushing is in threaded connection with an inclined plane of a supporting base, and a positioning disc coaxially sleeves the outer side of the threaded bushing and is connected with the supporting base; a circular spigot matched with the outer circle of the positioning disc is formed in the lower end face of the conical shell, a fixing spigot is formed in the upper end face of the conical shell, and a pressing plate screw is screwed into an internal thread of the threaded bushing to fix the fastening pressing plate to the fixing spigot of the conical shell; a first L-shaped support and a second L-shaped support are symmetrically arranged on the left side and the right side of the supporting base. The problems that in the prior art, the requirements for electrode extension adaptation, hole axis orientation and reliable positioning cannot be met at the same time, and consequently the inclined dark hole electric spark machining precision and efficiency are difficult to guarantee are effectively solved.

The utility model relates to the technical field of desulfurization equipment, and particularly provides a novel efficient oxidation tower for desulfurization waste liquid, which is characterized in that a base is fixed at the bottom of a tower body, a stirring device is mounted at the top of the tower body, a feed port and a gas outlet are further formed in the top of the tower body, a discharge port is formed in the bottom of the tower body, and a gas inlet is formed in the side surface below the tower body; the baffling component comprises a first conical shell and a second conical shell, the first conical shell is coaxially fixed on a driving shaft of the stirring device, the second conical shell is fixed on the inner wall of the tower body, the first conical shell and the second conical shell are coaxially arranged at an interval, openings of the first conical shell and the second conical shell face upwards, and the first conical shell and the second conical shell are arranged in a staggered mode. The first conical shell is arranged above the second conical shell, a first flow channel is formed between the opening edge of the first conical shell and the inner wall of the tower body in a spaced mode, the bottom of the second conical shell is open, and a second flow channel is formed between the opening edge and a driving shaft of the stirring device in a spaced mode. The waste liquid treatment device can improve the waste liquid treatment efficiency.

The invention relates to the technical field of crop disease and pest control, and discloses a trapping and killing device for crop disease and pest control. The trapping and killing device comprises a supporting base column, the outer side of the supporting base column is fixedly connected with a trapping and killing shell through a connecting rod, and the inner side of the trapping and killing shell is evenly and fixedly connected with multiple rows of conical shells in the circumferential direction; an opening in the end, located on the inner side of the trapping and killing shell, of the conical shell is smaller than an opening in the other end, facing the outer side of the trapping and killing shell, of the conical shell, a monitoring device is fixedly connected to the outer side of the trapping and killing shell, and a power shell is rotationally connected to the inner top wall of the trapping and killing shell through a driving assembly; the bottom end of the power shell is fixedly connected with a blocking plate used for blocking an opening in the inner side of the conical shell, and an inducing rod is detachably installed on the top wall of the inner side of the trapping and killing shell. The trapping and killing device for crop disease and pest control has the advantages that the defects that an existing device depends on single taxis and has no differential effect are overcome, pests and beneficial insects can be accurately distinguished, and the false touch rate of the beneficial insects is reduced.

The invention discloses a conical shell type piezoelectric balance actuator, and relates to the field of piezoelectric balance actuators, the conical shell type piezoelectric balance actuator is applied to rotor dynamic balance, and the conical shell type piezoelectric balance actuator comprises a front end cover, a rear end cover, a vibrator unit, a rubber pad, two plane thrust bearings and two turntables carrying compensation masses, the vibrator unit, the two plane thrust bearings and the two rotating discs with the compensation masses are all arranged between the front end cover and the rear end cover, the two plane thrust bearings are symmetrically arranged at the two ends of the vibrator unit, and the two rotating discs with the compensation masses are symmetrically arranged at the two ends of the vibrator unit. And the front end cover is connected with the rear end cover so as to support the vibrator unit, each plane thrust bearing and each turntable carrying the compensation mass. The conical shell type piezoelectric balance actuator is compact in structure, piezoelectric driving displacement is amplified, and the effect of bilateral synchronous balance is achieved. The invention further discloses a rotor dynamic balance system and method.

The application provides a large-section differential pipe liquid filling composite forming method and device, relates to the technical field of metal pipe forming, and the large-section differential pipe liquid filling composite forming method comprises the following steps: step one, plate material blank is subjected to liquid filling deep drawing forming to form a conical shell; step two, the closed end of the conical shell is cut to obtain a conical pipe with open ends; and step three, the conical pipe is subjected to liquid filling pressure forming to obtain a target pipe. The application further provides a large-section differential pipe liquid filling composite forming device. The large-section differential pipe liquid filling composite forming method and device provided by the application can improve the size precision and quality of the pipe.

The present application relates to pile foundation bored pile construction technology field, disclose a kind of easy to form pre-fracture automatic broken pile device system, including pre-fracture auxiliary structure and jack set device, jack set device includes jack set and the conical shell of the outer layer of jack set;Pre-fracture auxiliary structure includes the first half pipe body and the second half pipe body separated along vertical direction, the inner cavity of first half pipe body and second half pipe body form column, the connecting surface of first half pipe body close to second half pipe body is provided with lug, the connecting surface of second half pipe body close to first half pipe body is provided with limiting recess, the shape of lug and limiting recess is matched, and lug is installed in the inboard of limiting recess.Pre-fracture auxiliary structure is spliced by two half circular pipe body, lug is arranged in recess, one hand in the pouring process two half circular pipe body will not be dislocated, on the other hand guarantee first half pipe body and second half pipe body are separated along vertical direction, realize that pile body is broken along vertical direction.

The application discloses a kind of for conical shell hoisting and turnover device, belong to mechanical processing technical field, for solving the problem that conical shell outer surface is variable diameter curved surface and cannot be reliably clamped and turned over by conventional sling.The device structure includes hanger, and the clamping assembly for holding conical shell is installed on both sides of hanger through connecting mechanism;Connecting mechanism is switched between unlocking state and locking state by drawing and rotating operation, and then the opening and closing state of clamping assembly is controlled;Clamping assembly is designed as double-diameter structure, and in closed state, the clamping space matched with the outer surface of conical shell is formed by center enclosure.It is convenient to suit from the side of conical shell by openable and closable double-diameter clamping assembly, and the clamping space matched with the outer surface of conical shell is formed by enclosure, which overcomes the difficulty that conical curved surface cannot be stably fitted into sling due to its particularity.

The invention relates to a classifier based on airflow separation, comprising: a casing comprising a fixed cylinder, and a conical shell cavity and an ash bucket connected to the upper and lower sides of the fixed cylinder; an external air source is obliquely blown into the conical shell cavity in the tangential direction of an air outlet of the tangential air supplement volute; corresponding conical caps are fixedly mounted at the top of the fine powder discharging pipe at intervals; the ventilating and flow guiding conical shell is matched with the fine powder discharging pipe through a mounting hole of the ventilating and flow guiding conical shell so as to be mounted on the inner side of the tangent air supplementing volute; the ventilation flow guide conical shell is hollow and is provided with a corresponding inflation cavity, and the grading reinforcing mechanism comprises a plurality of micron air holes which are uniformly distributed in the conical surface of the ventilation flow guide conical shell. According to the device, the contact rate and the contact uniformity of materials and airflow can be effectively improved, and the entrainment amount of materials with small particle sizes when the materials with large particle sizes pass through an airflow washing area can be effectively reduced.

The utility model relates to an adjustable magnetorheological fluid train shock absorber, and belongs to the technical field of train shock absorbers. The adjustable magnetorheological fluid train shock absorber comprises a shell and a damping rod inserted into the shell. The pressurizing assembly is arranged in the shell and located on the surface of the damping rod; wherein the pressurizing assembly comprises a conical shell arranged on the inner wall of the shell, and an extrusion ring is arranged on the inner wall of the conical shell; by arranging a conical shell and an extrusion ring of the pressurization assembly, when the whole shock absorber is pressed, the extrusion ring extrudes the deep position of the conical shell, the pressure is gradually increased, the effect of self-adaptive pressure adjustment is achieved, and the damping effect and the shock absorption strength of the shock absorber can be effectively improved; through the design of the buffer ring and the deformation holes, a certain deformable space can be provided for the extrusion ring, the compression resistance degree of the extrusion ring is improved, and the problem that the extrusion ring is deformed or the durability is reduced due to long-term compression is reduced.

The invention discloses a laminated truncated cone shell with pores and a research method of thermoelastic buckling of the laminated truncated cone shell. The shell comprises a ceramic heat insulation material layer, a graphene enhanced functionally graded material core layer and a piezoelectric layer. Wherein the ceramic heat insulation material layer and the piezoelectric layer are respectively an inner surface layer and an outer surface layer of the shell, and the graphene enhanced functionally graded material core layer is arranged in the middle of the laminated truncated cone shell. A heat conduction temperature field of the shell is solved according to a one-dimensional heat conduction equation, a control equation of the truncated cone shell in a thermal environment is established based on a Hamilton principle, and then an analytical solution of a buckling critical temperature is obtained by adopting a Galerkin integral method. The invention has the following advantages: 1, the heat-insulating material layer resists high temperature around the shell by utilizing the characteristics of heat-insulating materials such as ceramic with lower heat transfer coefficient; 2, the piezoelectric layer can slow down the vibration of the shell by pre-applying voltage according to the voltage-deformation conversion characteristic of a piezoelectric material; and thirdly, the buckling critical temperature of the shell in the thermal environment can be analyzed and calculated more accurately by adopting the method.

The utility model discloses an adjustable building foundation reinforcing device which comprises a conical shell, a reinforcing mechanism is arranged on the conical shell, the reinforcing mechanism comprises an insertion pipe, multiple groups of chutes, insertion rods, a push rod, a push block, a discharge hole and a clamping mechanism, the insertion pipe is inserted into the conical shell, the chutes are distributed on the outer side of the insertion pipe, and the insertion rods are rotatably arranged on the outer wall of the conical shell. The push rods are arranged on the outer wall of the conical shell in a sliding mode, the push blocks are arranged at the top ends of the push rods, the discharge holes are distributed in the bottom end of the conical shell, the clamping mechanism comprises a clamping sleeve, a clamping block, a clamping groove, a sliding sleeve, an inclined sliding groove, a sliding block, a rotating sleeve, a push sleeve and an inclined block, and the clamping sleeve is fixed to the top end of the conical shell. The multi-directional expansion function of foundation reinforcement is achieved through the cooperation of multiple sets of inclined grooves, inserting rods and push rods, and reliable fixing of the inserting pipe is achieved through the precise cooperation of the clamping sleeve, the clamping block and the clamping groove and the flexible combination of the sliding sleeve, the inclined sliding grooves and the sliding block.

The application discloses a forming method of a thin-wall corrugated disc structure and relates to the technical field of metal material processing. The forming method comprises the following steps: obtaining blank parameters according to the parameters of a target thin-wall corrugated disc structure; performing forming simulation on the thin-wall corrugated disc structure; optimizing the theoretical blank thickness based on the forming simulation result; increasing a first preset wall thickness in the peak and valley area of the blank and / or reducing a second preset wall thickness in the wrinkle-prone area of the blank to obtain a non-uniform blank thickness; obtaining the non-uniform thickness blank; welding the non-uniform thickness blank into a conical shell blank; and performing gradual forming and negative pressure forming on the conical shell blank to form the thin-wall corrugated disc structure. The non-uniform wall thickness blank and the negative pressure forming method can avoid problems such as stress concentration and excessive thinning, improve forming precision and quality, and ensure that the surface quality is suitable for complex-shaped parts.

The utility model relates to the technical field of machine vision detection, and discloses a vision detection device, which comprises a conical shell, a light-emitting lamp panel, a light-emitting lamp panel and a detection through hole, the inner side wall of the conical shell is provided with a conical light-emitting lamp panel, and the conical shell is provided with a detection through hole facing a workpiece; the rotary adjusting device is connected with the top of the conical shell and used for driving the conical shell to rotate around the center line of the conical shell; and the detection camera is fixedly connected with the conical shell, and a lens of the detection camera directly faces the detection hole. According to the visual inspection device disclosed by the utility model, the inspection work can be well completed on the premise of saving the cost of the device.

This invention discloses a prefabricated conical steel support structure for shallow circular silo construction, comprising a conical shell panel assembly, a ring beam assembly, a radial beam, a lifting lug assembly, an adjustable support assembly, an anti-sway assembly, a connecting assembly, an auxiliary positioning assembly, and a sling connection assembly. It features a high degree of prefabrication, reducing on-site risks. Core components such as the conical shell panel and support frame are prefabricated in the factory, ensuring quality control. On-site assembly and hoisting are minimal, significantly reducing high-altitude work, lowering the risks of high formwork and falling objects. The hoisting stability is strong, enhancing safety. The lifting lug stiffening plates disperse hoisting stress, and the anti-sway assembly and guy ropes work together to control sway, ensuring a smooth hoisting process and preventing structural collisions and overloads. The assembly precision is high, and the structure is highly adaptable. Adjustable support components on the top of the shallow circular silo allow for adjustment during installation, ensuring the hoisted steel support structure accurately lands on the pre-set position on the silo top.

The invention relates to the technical field of metal forming and manufacturing, in particular to a selective loading integral hot forming method for a large-section-difference double-layer ultrathin special-shaped conical shell. Titanium alloy fan-shaped plate blanks, high-temperature alloy fan-shaped plate blanks and stainless steel fan-shaped plate blanks are respectively rolled and welded into conical cylinders according to design parameters, and the conical cylinders are laminated and combined to obtain the laminated conical cylinder. And under the medium-temperature condition, selective loading preforming is conducted on the laminated conical cylinder, and final forming is conducted under the high-temperature condition. And after bulging is finished, the formed workpiece is shaped. And then opening the mold to take out a workpiece, decomposing the laminated formed workpiece, and removing the steel special-shaped conical shell to obtain the titanium alloy and high-temperature alloy ultra-thin special-shaped conical shell with the large cross section difference. The large-section-difference double-layer ultrathin special-shaped conical shell selective loading integral hot forming method solves the problems that according to an existing forming method, the wall thickness distribution of a formed workpiece is uneven, microcracks exist at a welding seam, the forming stability is poor, the production efficiency is low, and the consistency of the inner layer and the outer layer of a double-layer conical barrel piece is poor, and provides the large-section-difference double-layer ultrathin special-shaped conical shell selective loading integral hot forming method.

The invention discloses a forming method of a thin-wall corrugated disc structure, and relates to the technical field of metal material machining, blank parameters are obtained through target parameters of the thin-wall corrugated disc structure, forming simulation is conducted on the thin-wall corrugated disc structure, and the thin-wall corrugated disc structure is obtained on the basis of the forming simulation result. Optimizing the theoretical blank thickness: increasing a first preset wall thickness for a wave crest and wave trough area in the blank and / or reducing a second preset wall thickness for an easy-to-wrinkle area in the blank to obtain a non-uniform blank thickness; and a non-uniform-thickness blank is obtained, the non-uniform-thickness blank is welded into a conical shell blank, the conical shell blank is subjected to negative pressure forming after incremental forming, and the thin-wall corrugated disc structure is formed. Through the non-uniform wall thickness blank and the negative pressure forming method, the problems of stress concentration and / or excessive thinning and the like are avoided, the forming precision and quality are improved, and it is ensured that the surface quality is suitable for parts in complex shapes.

The invention discloses a large-stroke quasi-zero stiffness vibration isolator based on positive and negative stiffness alternate evolution and nonlinear complementary characteristics, and relates to the technical field of vibration control and vibration isolation. Each vibration isolation unit is composed of a diaphragm spring, a truncated conical shell and a fixed base plate, a plurality of belleville springs are evenly arranged on the inner circumference of each diaphragm spring, the belleville springs are arranged in the radial direction, lifted and extended, the inner side ends of the belleville springs continue to be lifted and extended to be additionally provided with separation fingers, and the inner side ends of the separation fingers are connected through annular reinforcing pieces. The truncated conical shell is composed of a conical shell body and an integrally-formed throttling hole, the fixed chassis concentrically fixes the truncated conical shell and the diaphragm spring in sequence, and the annular reinforcing piece is supported on the throttling hole. The effective quasi-zero stiffness stroke interval is prolonged by means of the positive and negative stiffness alternate evolution and nonlinear complementary characteristics of the diaphragm spring and the truncated conical shell, the performance of high static stiffness and low dynamic stiffness can be achieved at the same time under the large amplitude condition, the structure is compact, array arrangement can be achieved, the vibration isolation stroke is large, and the manufacturing process is simple.

The present application relates to the technical field of fish egg hatching, and specifically discloses a hatcher for improving the hatching rate of perch eggs, which comprises a cylindrical shell, a drainage port is formed in the middle of the top side of the shell, a plurality of water outlets are mounted on the edge of the bottom side of the inner cavity of the shell, a conical shell with a pointed top is fixed in the middle of the bottom side of the inner cavity of the shell, a circular pipe body is mounted above the conical shell and arranged vertically, a plurality of partitions are fixed on the inner wall of the pipe body, the pointed top of the conical shell extends into the pipe body, and the gap between the conical shell and the pipe body is 1.0-10.0 cm. In the hatcher, the perch eggs move up and down in the water without contacting the filter screen, so that the perch eggs are prevented from being mechanically extruded, and the hatching rate of the perch eggs is improved.

The application discloses a multi-mode McKenna action device and roller design method of a pipeline robot, and the action device comprises a support, a McKenna driving wheel and an omnidirectional load wheel which are installed side by side on the support; the McKenna driving wheel comprises a driving wheel shaft, a driving wheel shell and a plurality of rollers A; the omnidirectional load wheel comprises a load wheel shaft, a load wheel shell and a plurality of rollers B; the plurality of rollers A of the McKenna driving wheel are installed on the outer circumferential surface of the driving wheel shell, and the rollers A adopt a McKenna wheel type layout, that is, the axis of the roller A and the generatrix of the corresponding cylindrical shell or conical shell form a 45-degree included angle; the plurality of rollers B of the omnidirectional load wheel are installed on the outer circumferential surface of the load wheel shell, and the rollers B adopt an omnidirectional wheel type layout, that is, the axis of the roller B is perpendicular to the generatrix of the corresponding cylindrical shell or conical shell. The application can combine the cylindrical McKenna wheel and the conical McKenna wheel, and improve the adaptability of the action device.

The application provides a forging method of a large taper conical shell forging, and relates to the technical field of forging. In the application, during the process of forming the large head end and the small head end of the stepped cylinder preform by elongating and cutting the hollow cylinder blank, the outer diameter of the hollow cylinder blank is equal to the outer diameter of the large head end of the stepped cylinder preform, so that the end of the hollow cylinder blank for forming the large head end of the stepped cylinder preform does not need to be forged, and thus the concave core phenomenon does not occur in the large head end of the stepped cylinder preform. The core rod for elongating and cutting is provided with a blocking ring, and the end of the hollow cylinder blank for forming the small head end of the stepped cylinder preform abuts against the blocking ring during the process of elongating and cutting, so that the concave core phenomenon does not occur in the small head end of the stepped cylinder preform.

The invention discloses a process for controlling the mounting precision of multiple barrels on a conical surface. The process comprises the following steps: S1, setting out the trepanning and lofting size of an inclined surface of a cone, setting out a stable tool style, and setting out a precision detection node in a barrel section mounting process; s2, lofting on the inclined plane of the cone according to the connecting pipe; s3, a positioning hole is formed in the positioning center line of the transverse cone connecting pipe on the same side; s4, after tapping of the connecting pipes on the two sides is completed, a laser theodolite is used for scanning the tapping edges; s5, circumferential mounting angle quartering lines of the connecting pipes are marked on the connecting pipes with the coaxiality requirement in advance; s6, after the tapping inspection is qualified, the connecting pipes with the coaxiality requirement are assembled in pairs; s7, the connecting pipes need to be symmetrically welded in pairs at the same time; in production, a stable tool is used, data are detected according to a plurality of nodes, after precision deviation is found, a welding deformation control method is adopted for adjustment, the final forming precision is ensured, the installation precision of the connecting pipe on the conical shell ring is improved, and the construction cost is also reduced.

The utility model relates to the technical field of mixing machines, in particular to a single-spiral conical mixing machine for rare earth production, which comprises a base, the top of the base is fixedly connected with the bottom of a driving part, the inner wall of the driving part is fixedly connected with the outer wall of a mixing part, and the outer wall of the mixing part is fixedly welded with the outer wall of a scraping part. When rare earth is mixed, the rare earth is added into a conical shell from a feeding hole, a driving motor is started, the driving motor drives a rotating gear to rotate through a driving gear, the rotating gear drives a rotating pipe to rotate, the rotating pipe drives a mixing screw to rotate, and the rare earth is stirred and mixed; during mixing, the rotating pipe drives the scraping screw to rotate through the supporting rod, so that the scraping screw scrapes off rare earth adhered to the inner wall of the conical shell, the rare earth is prevented from being adhered to the inner wall of the conical shell during mixing, and the mixing uniformity of the rare earth is effectively improved.

This invention discloses a prefabricated assembled foundation for wind turbine towers, combining a spherical shell and a conical shell, and its construction method. Belonging to the technical field of wind turbine tower foundations, the prefabricated assembled foundation includes: a spherical shell foundation body comprising multiple prefabricated spherical shell components, the spherical shell foundation body having a downwardly convex spherical shell shape; a conical shell foundation body arranged on the upper side of the spherical shell foundation body, the conical shell foundation body having a conical shell shape and comprising multiple prefabricated conical shell components; and a ring beam connecting the conical shell foundation body and the spherical shell foundation body, the ring beam comprising multiple prefabricated beam components, the multiple prefabricated beam components being spliced ​​and connected along the circumference of the spherical shell foundation body. The prefabricated assembled foundation for wind turbine towers based on the spherical shell and conical shell combination of this invention can fully utilize the advantages of thin-shell foundations, such as reasonable stress distribution and material saving. The cavity enclosed by the foundation can be filled with counterweights to improve the foundation's overturning stability. The use of prefabricated components can significantly shorten the on-site construction cycle and ensure the consistency of foundation construction quality.

The invention relates to the technical field of agricultural product processing, and discloses a buckwheat hulling device which comprises a first support and a hulling assembly, the hulling assembly comprises a first shell, a rotary driving part, a gap adjusting driving part and a hulling roller, the first shell is installed on the first support and provided with a cylindrical shell section and a conical shell section which are connected, and the rotary driving part is installed on the first shell; a first feeding hole is formed in the cylindrical shell section, and the inner diameter of the conical shell section is gradually increased from top to bottom; the gap adjusting driving part is installed on the first support, the rotary driving part is installed on the gap adjusting driving part and connected with the shelling roller, the shelling roller is located in the first shell and provided with a cylindrical section and a conical section, and the inner wall of the cylindrical shell section and the outer wall of the cylindrical section define a first shelling space; a second shelling space is defined by the inner wall of the conical shell section and the outer wall of the conical section, and the gap adjusting driving piece can drive the shelling roller to ascend and descend. The separation of buckwheat kernels and buckwheat hulls is realized.

The invention relates to the technical field of inorganic compound preparation, in particular to a barium carbonate synthesis reactor which comprises a double-cone shell, a first cone-shaped cover, a second cone-shaped cover and an adjusting shaft, a plurality of gas blocking blocks are arranged between the second cone-shaped cover and the first cone-shaped cover in the circumferential direction in an annular array mode, and an inclined flow guide face is arranged on one side of each gas blocking block in the circumferential direction. A matching block is embedded in the inner side of the sliding groove in a sliding mode. The gas blocking block is fixedly connected with the second conical cover, the matching block is fixedly connected with the first conical cover, an inclined matching surface is arranged on the side, away from the sliding groove, of the matching block, and a gas outlet gap is formed between the matching surface and the flow guide surface; the adjusting shaft is arranged at the bottom of the double-cone shell and used for driving the second conical cover to rotate so as to adjust the geometric width of the air outlet gap. According to the gap adjusting structure, the rotary linkage type mechanical design is adopted, the structure is simple, the number of parts is small, no complex transmission mechanism exists, the manufacturing cost is reduced, and the later disassembly, overhaul and maintenance processes are simplified.

The utility model belongs to the technical field of numerical control blade machining, and particularly relates to a fixing clamp for numerical control blade machining, which comprises a bottom plate mounted on a numerical control machine tool, a first sliding groove is formed in the bottom plate, a moving assembly is arranged in the first sliding groove, a supporting plate is mounted on the moving assembly, and a clamping assembly for fixing a steel shaft is arranged on the supporting plate. The clamping assembly comprises a conical shell arranged on the supporting plate, an opening is formed in one end of the conical shell, the other end of the conical shell is in a closed state, a plurality of inclined second sliding grooves are formed in the inner wall of the conical shell, and a sliding block matched with each inclined second sliding groove is arranged in the corresponding inclined second sliding groove. One side of each sliding block is provided with an arc-shaped clamping plate located at the corresponding opening, and an arc-shaped sliding groove is formed between every two arc-shaped clamping plates. According to the device, materials with different diameters can be clamped and fixed, meanwhile, follow-up installation and replacement are facilitated, pressure can be evenly distributed, and the clamping effect is improved.

The utility model provides a scattering mechanism of a grain dryer. The scattering mechanism of the grain dryer effectively solves the problem that a scattering mechanism in an existing grain dryer is prone to causing breakage of grain particles. According to the technical scheme for solving the problems, the device comprises a conical shell, a feeding port is formed in the shell, a cylinder capable of actively rotating is arranged on the upper side wall of the shell, a conical barrel with a downward opening is arranged at the lower end of the cylinder, and a plurality of protruding strips are arranged on the conical surface of the conical barrel and evenly distributed in the circumferential direction; an annular plate is fixed to the inner side wall of the shell, the outer side wall and the inner side wall of the annular plate are attached, the lower end of the annular plate shrinks inwards and then inclines upwards, a spiral guide piece is arranged on the inner side wall of the annular plate, and a plurality of air inlets are formed in the side wall of the annular plate. The lower edge of the conical barrel is located in the annular barrel cavity, and when grains are scattered and fall down along the protruding strips on the conical barrel, hot air of the air inlet blows away grains along with the spiral guide pieces.

The invention discloses ultra-large and compact CO2 separation equipment which comprises a shell, a stand column arranged on the lower side of the shell and used for integrally supporting the equipment and a conical shell arranged on the upper side of the shell and used for being connected with a flue gas outlet. The cross section of the shell is rectangular, a plurality of longitudinal reinforcing ribs are arranged on the outer side wall of the shell at intervals, the longitudinal reinforcing ribs and the stand columns jointly bear loads of the shell and internal media, and a plurality of reinforcing ring structures are further arranged on the outer side wall of the shell in the height direction of the shell at intervals. The rectangular-section shell design is adopted, a three-dimensional supporting system with the longitudinal reinforcing ribs and the double-layer reinforcing rings is matched, the core problem of ultra-large equipment is effectively solved, the longitudinal reinforcing ribs and the stand columns cooperatively bear the shell and internal medium loads, and vertical stress is dispersed; the double-layer reinforcing ring can restrain deformation of the tower wall caused by internal pressure, liquid column static pressure and wind load, and insufficient rigidity or cracking of the wall plate is avoided.