337 results about "Spiral line" patented technology

The invention discloses a refrigeration pipe welding positioning method and device. The method comprises the following steps that S1, branch pipes are placed in all storage boxes; s2, the main pipeline is placed in a matching groove of the supporting frame, and the main pipeline is fixed through cooperation with a pressing ring; s3, a third electric cylinder is started, the third electric cylinder drives a supporting frame and the main pipeline to move to be close to the welding gun, and a branch pipe of the main pipeline moves to cross the welding gun; s4, a first electric cylinder is started, and the first electric cylinder drives a synchronous plate and an ejector sleeve to move; the motor, the first chain wheel, the second chain wheel, the chain and the hollow rotating disc are matched to drive the vortex line groove and linear groove linkage adjusting block and the rolling wheel to move, the purposes of clamping positioning and circle center correction of the branch pipe are achieved, the branch pipe is corrected to the position concentric with the disc, the coaxiality of the branch pipe and a main pipeline branch pipe is guaranteed, and the machining efficiency is improved. And the quality problems of insufficient welding, welding skips, poor welding seam forming and the like caused by positioning deviation are avoided.

The utility model relates to a biliary tract woven stent, which comprises a woven stent formed by weaving one or a plurality of woven filaments, the woven filaments are wound along the axis in a positive and negative spiral line mode and interwoven with one another, and the mutually staggered woven filaments form a lap joint buckle structure capable of freely sliding or a hooking buckle structure limited in sliding at nodes. According to the technical scheme, the structure is reasonable, the stent can be degraded automatically while the radial supporting force of the stent is improved, and the stent taking-out operation is omitted.

The invention discloses rotary clamping equipment for a medium-caliber seamless steel pipe for fluid conveying and a using method, and relates to the technical field of steel pipe machining. The rotary clamping equipment for the seamless steel pipe for conveying the medium-caliber fluid comprises a rack, a steel pipe, a machine box and a supporting frame, and further comprises a chuck assembly which is coaxially and rotatably installed on the machine box and the supporting frame and used for fixing the two ends of the steel pipe. The double-row cylindrical self-aligning bearing is used for supporting the main shaft sleeve, passive self-adaptive self-aligning of the main shaft sleeve is achieved, a chuck assembly at the driving end can follow the instantaneous rotation axis of actual bending change of a steel pipe in real time, and a workpiece is not forced to conform to the theoretical axis of equipment; the problems of spiral line contact between the clamping jaw and the surface of the steel pipe, local stress concentration and periodic pulsation attenuation of clamping force caused by forced centering under traditional rigid clamping are solved, it is guaranteed from the source that the clamping jaw and the outer edge of the steel pipe always keep stable and uniform surface contact in the initial clamping stage and the rotating process, and axial movement is eliminated.

According to the centrifugal pump with the double-spiral blades and the double-roller type granulator using the centrifugal pump, the double-spiral blades are adopted, and the first blade and the second blade influence and balance each other; the contour line of the working surface of the first blade is an Archimedes spiral, and the contour line of the back surface of the second blade is a logarithmic spiral; the contour line of the back face of the first blade comprises a part of a first equal-pitch spiral line close to the inlet side and a part of a first variable-pitch spiral line away from the inlet side, and the contour line of the working face of the second blade comprises a part of a second variable-pitch spiral line close to the inlet side and a part of a second equal-pitch spiral line away from the inlet side. According to the spiral vane pump, the instability of fluid in the spiral vane pump can be optimized, vibration and noise are reduced, the second vane is equivalent to supplement of the first vane, cavitation and cavitation are effectively reduced, and the hydraulic efficiency and the stable performance of the centrifugal pump are improved to a certain degree.

The invention relates to the technical field of mold design and manufacturing, and discloses an automatic generation method and device of a shape follow-up waterway and a storage medium, and the method comprises the following steps: S1, generating a bias curved surface; s2, generating an auxiliary spiral line by taking the center of the mold core base as a starting point, and projecting the auxiliary spiral line to the offset curved surface; s3, aiming at the reference trajectory, generating an ordered curve segment set by adopting an ordered curve vector creation algorithm; s4, generating control points for the ordered curve segment set, connecting the control points through a spline curve, and adding a waterway outlet point to form a scanning trajectory; and S5, generating a cooling channel entity along the scanning track line, generating a spiral turbulent flow rib by taking the scanning track line as a ridge line, and combining the spiral turbulent flow rib with the cooling channel through Boolean operation. By introducing an ordered curve vector creation algorithm, a continuous and ordered scanning track line is generated, so that the construction of the shape follow-up waterway is completed, and the automation degree of the design is remarkably improved.

The invention relates to the technical field of separation equipment, and discloses a waste mineral oil impurity removal, separation and recovery system which comprises a rotary drum component, the rotary drum component is composed of a rotary drum large end and a rotary drum small end which are fixedly connected, and an auxiliary deslagging structure is arranged outside a spiral main shaft located at the rotary drum small end. The auxiliary deslagging structure comprises a sleeve arranged on the outer surface of a circular shaft of the spiral main shaft in a sleeving mode, and a sliding groove in sliding connection with the outer wall of the spiral main shaft is formed in the sleeve. An auxiliary deslagging structure is arranged, oil residue particles do spiral motion along the inner wall of the rotary drum component under the combined action of centrifugal force and spiral thrust, meanwhile, radial pulsation is generated due to reciprocating motion of auxiliary blades, a combined track of spiral advancing and radial oscillation is formed, an oil film structure is damaged through dynamic extrusion, leaked oil is recovered through centrifugal suction, and the oil residue removal effect is improved. And through the synergistic effect of variable-volume extrusion and filtering gaps, oil wrapping is reduced, the oil stripping effect is enhanced, oil residue residues are reduced, and channel blockage is avoided.

The invention provides a logarithmic spiral motor design method, belongs to the technical field of spiral motor design, and designs logarithmic spiral electromagnetic topology, fuses a plurality of materials, constructs an integrated structure body, and sets an intelligent regulation and dynamic matching control mode. Firstly, a magnetic flux path is optimized, magnetic flux is naturally distributed in the tangential direction of a spiral line by utilizing the characteristic that the curvature of the spiral line is continuously increased or decreased, edge magnetic flux distortion is reduced, then near-field coupling is enhanced, and the magnetic flux superposition phase difference between adjacent spiral units is controlled by adjusting spiral line parameters. The double targets of active enhancement of effective magnetic flux and suppression of magnetic leakage are achieved. Through deep fusion of geometric characteristics and electromagnetic laws of logarithmic spiral lines, pole slot limitation and loss bottlenecks of a traditional motor are broken through, through a logarithmic spiral line electromagnetic topology design normal form, geometric curvature and magnetic field distribution are quantitatively associated, and through a conductive, magnetic conductive and heat dissipation composite winding and an intelligent magnetic barrier structure, multi-field collaborative optimization is achieved.

The invention relates to a light-weight type planetary line gear reducer which comprises a sun gear, a planetary gear, an inner gear ring and a planetary carrier which are all light-weight type line gears, the sun gear is located in the center of the inner gear ring, the sun gear and the planetary carrier are both coaxially and rotationally installed on the inner gear ring, and the planetary gear is installed on the planetary carrier in a heteroaxial rotation mode and can rotate around the axis of the planetary gear. And the tooth surface normal of any contact point of the planet gear is collinear with the tooth surface normal of the corresponding contact point of the sun gear and the inner gear ring at the same time, the contact line is a cylindrical spiral line, and the transmission ratio and the spiral radius are decoupled. Through the space curve meshing theory, the reduction ratio exceeding 30 can be achieved through a single stage, the stage number of the planetary reducer is reduced, the force flow transmission path is remarkably shortened, the overall weight is reduced, and meanwhile the bearing capacity and reliability are improved; the technical problems that in the prior art, when the large reduction ratio is achieved, the multi-stage series connection structure is complex, the weight is increased, the transmission and positioning precision is reduced, and the load dispersing capacity is limited are systematically solved.

The embodiment of the invention provides rocker arm type adjustable ship charging equipment, and relates to the technical field of energy supply device manufacturing. The rocker arm type adjustable ship charging equipment comprises a base, a sliding rail, a rocker arm assembly and a winding mechanism. One end of the screw rod is driven by a stepping motor to rotate; the lower end of the main shaft is rotationally connected with the base, a servo motor used for driving the supporting arm to rotate around the upper end of the main shaft is installed on the main shaft, and a forward and reverse rotation motor used for driving the main shaft to rotate is installed in the base; the winding wheel is rotationally installed at the rear end of the sliding rail, and the take-up and pay-off driving unit is used for driving the winding wheel to rotate. Position deviation is monitored in real time through an installed sensor, a fine adjustment mechanism is automatically triggered, and the stability of charging butt joint is ensured; the winding wheel adopts a spiral line groove design and is matched with a guide mechanism to realize ordered arrangement of cables, so that the common problems of disordered wires and overlapped wires of a traditional winding device are solved, and the manual arrangement and maintenance cost is reduced.

The invention belongs to the technical field of quartz tube polishing, and particularly relates to high-transmittance quartz tube surface precision plasma polishing equipment which comprises a machine body, and a rack is fixedly connected to the machine body; the moving mechanism is arranged on the machine body, the moving mechanism comprises two sliding shells installed on the machine body in a sliding mode, the sliding shells are in transmission connection with the racks, and a plurality of clamping blocks are rotationally installed on the sliding shells; and the polishing assembly comprises a frame body installed on the machine body in a sliding mode, the frame body is in transmission connection with the rack, and a plurality of spray guns are installed on the frame body in a sliding mode. According to the quartz tube polishing device, the two ends of a quartz tube can be clamped through the two sliding shells correspondingly, the two ends of the quartz tube can be polished conveniently, the moving track of the spray gun relative to the quartz tube can be a spiral line through the moving mechanism and the polishing assembly, the spray gun is matched with quartz tubes of different diameter sizes after sliding, and polishing convenience is improved.

The invention discloses a processing method for improving the cutting efficiency of a water-guided laser thick plate material, which comprises the following steps: in the initial cutting stage, establishing an initial drainage channel with the outer vertical surface of the thick plate material through a lead or a spiral line drill hole; after the initial channel is established, the thick plate material is cut along the cutting channel with the initial drainage channel as the starting point, and a target cutting workpiece is obtained; wherein in the process of cutting along the cutting channel, a feed type reciprocating cutting mode and / or a swing cutting scanning strategy are / is adopted for penetrating type cutting. On the basis, the stability of the water jet and the continuity of the total reflection condition in the cutting process are guaranteed to the maximum extent, and therefore the cutting efficiency can be greatly improved.

The invention relates to a variable-width volute spiral spring design method and a volute spiral spring, and belongs to the technical field of volute spiral springs.The variable-width volute spiral spring design method comprises the steps that S1, polar angles corresponding to plane spiral lines at different arc length positions are determined; s2, determining curvature radiuses corresponding to the planar spiral lines at different polar angle positions; s3, according to different curvature radius parts, the initial section width of the volute spiral spring is designed; and S4, the initial width of the volute spiral spring is adjusted according to the ratio of the radius to the half thickness of different parts, and uniform distribution of bending stress is achieved. The core of the method is that a corresponding width change rule is designed according to a change rule of bending stress along with curvature radius disclosed by a curved beam theory. By means of the method, the maximum bending stress of all the sections can be equal, and therefore the bearing capacity and stability of the volute spiral spring are improved.

The invention discloses a polishing device for batch machining of automobile bearings, and particularly relates to the technical field of automobile workpiece grinding, the polishing device comprises a polishing frame and a polishing abrasive belt, a dust collector is installed on the side, close to the polishing abrasive belt, of the polishing frame, and a stable polishing assembly is arranged between the polishing frame and the polishing abrasive belt; the stable grinding assembly is used for keeping a spiral propelling type grinding track between the workpiece and the grinding abrasive belt; the stable grinding assembly comprises a driving guide wheel disc and a driven guide wheel disc which are movably connected to the side, close to the grinding abrasive belt, of the grinding frame. Workpieces in the two clamping blocks are driven to perform pure rotary motion through rotation of the driving guide wheel disc, the inclined grinding abrasive belt represents a fixed fixed inclined plane, and then when any point on the surface of a bearing makes contact with the grinding abrasive belt, the motion trail of the grinding abrasive belt is not a simple circumferential line any more, so that the grinding effect is good. The spiral line is formed by combining the tangential motion of rotation and the axial sliding component caused by the inclination angle.

The utility model discloses a film evaporator for processing high-viscosity materials, which comprises a barrel body extending along the vertical direction, a heating jacket arranged on the periphery of the barrel body, a feed port connected to the side wall of the upper part of the barrel body, a conical discharge barrel with a big upper part and a small lower part connected to the lower end of the barrel body, and a rotor arranged in an inner cavity of the barrel body and used for scraping the inner wall of the inner cavity of the barrel body, a rotor shaft is arranged along the axis of the rotor, a plurality of scraping blades are uniformly arranged on the periphery of the rotor shaft in a central symmetry manner, each scraping blade extends along a spiral line which is guided downwards, and the outer edge of each scraping blade is close to the inner wall of the barrel body; and a conical discharging paddle for pushing materials downwards is arranged on the periphery of the lower part of the rotor shaft, is positioned in an inner cavity of the conical discharging barrel and is matched with the inner cavity of the conical discharging barrel. According to the film evaporator, a liquid film can be uniformly spread and smoothly flows downwards, the evaporation efficiency is high, materials are prevented from being overheated or blocked, and long-term stable operation of equipment is guaranteed.

The invention discloses a double-spiral type acoustic black hole vibration reduction structure which comprises two spiral line acoustic black holes, a transverse connecting rod and a damping layer. The spiral acoustic black hole comprises a plurality of conical units. And the thickness of each conical unit is gradually reduced by a power function in the direction from the head end to the tail end. The damping layer is arranged on the inner surface of the conical unit. Any two adjacent conical units are smoothly connected in a head end-head end or tail end-tail end mode, and the spiral line acoustic black hole with the periodically-variable diameter is constructed. And the spiral line acoustic black hole spirally extends around the central shaft. The two spiral line acoustic black holes have the same screw pitch and spiral radius, the center axes of the two spiral line acoustic black holes coincide, and the two spiral line acoustic black holes are arranged in a staggered mode along the center axes to form a parallel coiled double-spiral structure. And the plurality of transverse connecting rods are arranged on the central shaft at intervals so as to transversely connect the two spiral line acoustic black holes. According to the vibration reduction structure, the wave velocity regulation and control mechanism of the acoustic black hole and the band gap characteristic of the periodic structure are fused, and the more efficient and stable vibration reduction performance is achieved for multi-dimensional vibration.

The utility model discloses a blade type spiral flow spiral flow generator based on a bionic non-smooth surface. The blade type spiral flow spiral flow generator is divided into a mandrel part and a front cone part. The main body of the core shaft part is a core shaft, the core shaft is a solid cylinder, a plurality of spiral blades are arranged on the excircle surface of the core shaft in parallel, a plurality of grooves are distributed in each spiral blade side by side in the radial direction, and all the grooves face the front cone direction; the main body of the front cone part is called a front cone section, and a plurality of ribs are longitudinally arranged on the conical surface of the front cone section. The utility model belongs to the technical field of fluid machinery, and solves the problems of low fluid conveying efficiency and lower material mixing property caused by unsatisfactory structure arrangement of a spiral flow spiral flow generator in the prior art, and the grooves not only increase the contact surface between the blades and the materials, promote the full mixing of the materials, but also enhance the stirring uniformity and efficiency; in addition, the shape and arrangement of the grooves ingeniously guide the materials to flow in the spiral line direction, the conveying resistance is reduced, and the overall conveying performance is improved.

The invention discloses a double-tool-bit groove edge milling machine and relates to the technical field of steel plate groove milling. The double-tool-bit groove edge milling machine comprises a transmission box, a positioning shaft and a swing shaft, the axis of the positioning shaft and a rack are kept static relatively, the rotating axis of a first milling tool bit coincides with the axis of the positioning shaft, and the rotating axis of a second milling tool bit coincides with the axis of the swing shaft; the rotating axis of the second milling tool bit coincides with the axis of the positioning shaft. The hydraulic rod stretches out and draws back to drive the swing shaft to swing around the axis of the positioning shaft. The extending direction of the arc-shaped sliding rail is a spiral line, and the axis of the spiral line coincides with the axis of the positioning shaft. The milling tool bit has the beneficial effects that the two milling tool bits II are designed to mill a groove of a workpiece; the groove of the workpiece is milled through the first milling tool bit, and the groove of the workpiece is covered with the first milling tool bit and the second milling tool bit; the milling depth of the single tool in the double tool bits is halved, the heat productivity is reduced, and the cutting efficiency is improved; free and fast switching between a slope opening and a V-shaped groove is achieved, the working process is simplified, and the turn-over process is omitted.

The utility model relates to the technical field of high-speed rotating joints, and discloses a spiral waterproof mechanism in a high-speed rotating joint, which comprises a rotating joint body, a waterproof component is arranged in the rotating joint body, and the lower part of the rotating joint body is fixedly connected with a drainage hole; the waterproof assembly comprises a rotating body shaft, the rotating body shaft is installed in the rotating joint body, an oil retainer is installed on the right side of the outer portion of the rotating body shaft, a disc oil retainer is arranged on the lower portion of the oil retainer, an O-shaped sealing ring is installed on the lower portion of the oil retainer, and a bearing is installed on the left side of the outer portion of the rotating body shaft. And the oil retainer adopts a spiral line type waterproof groove design. According to the rotary joint, leaked liquid is attached to the inclined spiral groove and is guided and discharged through centrifugal force generated by high-speed rotation through the spiral line type waterproof structure, the liquid is prevented from entering the bearing, the service life of the rotary joint is effectively prolonged, the maintenance cost is reduced, and the production efficiency is improved.

The utility model discloses a spiral compression spring which comprises supporting rings at the two ends and a spring body located between the two supporting rings, the spring body and the supporting rings are sequentially and spirally wound in a directional mode to form a cylindrical shape, and the two end rings of the spiral compression spring are tightly combined and ground to be flat or are tightly combined and ground to be flat after being flattened. A gap is formed between every two rings of the spring body, and a contact line compensation ring is additionally arranged on the supporting ring; the contact line compensation ring and the supporting ring are integrally formed, and the contact line compensation ring extends by a certain length from the contact point of the supporting ring and the spring body to the tail tip direction along the spiral line of the supporting ring. According to the utility model, the contact line of the cylindrical helical compression spring can be independently compensated, the length of the contact line meeting the standard requirement can be obtained without loading or loading a very small axial load, the properties such as the total number of turns, the number of effective turns, the free height, the compression height and the reserved safety stroke are not changed, the stability and the bearing capacity are improved, and the production cost is reduced. The service life is prolonged.

The utility model relates to the technical field of fracturing sliding sleeves, in particular to an intelligent fracturing sliding sleeve with spirally distributed sand blasting holes. Comprising an outer cylinder body, at least two rows of fracturing holes are formed in the outer cylinder body in the axis direction of the outer cylinder body, each row of fracturing holes are circumferentially and evenly distributed in the outer wall of the outer cylinder body, and any two adjacent rows of fracturing holes are formed in a staggered mode. Every two adjacent fracturing holes in any two adjacent rows are located on a virtual spiral line, and the axis of the spiral line coincides with the axis of the outer cylinder body. Fracturing holes are spirally arranged according to a phase angle, the axial distribution distance is longer, a radial porous matrix is adopted, and the influence that local cement consolidation strength or stratum rock strength hinders fracture forming can be counteracted during fracturing. And the operation is repeated, the intelligent label is pumped, anchoring and setting are conducted, the upper-stage sliding sleeve is opened, and step-by-step fracturing is achieved.

The utility model discloses a lead screw nut withdrawing device which comprises a supporting mechanism, a clamping mechanism used for fixing a lead screw is arranged at the top of the supporting mechanism, two symmetrical guide mechanisms used for achieving sliding connection are arranged between the clamping mechanism and the supporting mechanism, and a rotating mechanism used for rotating a nut on the lead screw is arranged on the supporting mechanism. The rotating mechanism comprises a first bearing seat and a second bearing seat, the first bearing seat is located between the clamping and fixing mechanism and the second bearing seat, and a movable column is movably arranged between the first bearing seat and the second bearing seat in a penetrating mode; the lead screw is clamped through the clamping and fixing mechanism, the nut is arranged in the rotating mechanism, the nut is rotated through the rotating mechanism, under the matching action of the clamping and fixing mechanism and the guiding mechanism, the lead screw can do linear motion under pushing of a spiral line till the lead screw is separated from the nut, and then the nut retreating effect is achieved. Semi-automatic operation of the whole machine is achieved, workers only need to be responsible for feeding and discharging, the labor intensity of the workers is effectively reduced, and the nut withdrawing efficiency is improved.

The application belongs to the technical field of welding, and particularly relates to a repair welding method for eliminating welding cracks of ZL205A alloy castings. The application provides a repair welding method for eliminating welding cracks of ZL205A alloy castings, which comprises the following steps: S1. high-temperature heat treatment is performed on the ZL205A alloy castings after defects are removed; S2. the castings are taken out when the castings are cooled to 100-150 DEG C in the furnace, and tungsten argon arc repair welding is performed; S3. the welding area is covered with heat preservation cotton, and the castings are cooled to normal temperature; S4. if defects need to be repaired again after the castings are subjected to the aforementioned high-temperature heat treatment and repair welding, only a local area is heated to 100-150 DEG C by using a torch, and then tungsten argon arc repair welding is performed; the tungsten argon arc repair welding is performed in a spiral line repair welding sequence and a layered overlaying manner. The application eliminates the root cause of thermal cracks through high-temperature heat treatment before welding, and controls welding process stress by using a spiral line repair welding sequence, so that the repair welding thermal cracks of super-large thin-walled ZL205A castings can be effectively eliminated, only one heat treatment is needed, the production efficiency is high, and the composition of welding wire is optimized to further reduce the thermal crack tendency.

The application provides a jacking device. The jacking device comprises a base, a jacking part and a rotating part. The jacking part is arranged on the base and is movable relative to the base along a first direction. The jacking part has a rack part extending along the first direction. The rotating part is arranged on the base and is rotatable relative to the base about a second direction. The second direction has an included angle with the first direction. The rotating part has a driving tooth. In a projection plane orthogonal to the second direction, the projection of the driving tooth is a spiral line. The driving tooth is used for meshing with the rack part. In a projection plane parallel to the first direction and the second direction, the projection of the driving tooth overlaps with the projection of the rack part at one end of the first direction, and the projection of the driving tooth is arranged at intervals with the projection of the rack part at the other end of the first direction. The jacking device drives the jacking part to move through the meshing of the driving tooth of the rotating part and the rack part of the jacking part, and has a simple structure.

The cold header with the positioning structure comprises a movable seat, a fixed seat is arranged on one side of the movable seat, clamping devices are installed on one side of the fixed seat and one side of the movable seat, each clamping device comprises an unlocking sleeve, a positioning sleeve, a positioning rod, a clamping groove, a clamping sleeve and a fixing rod, the unlocking sleeve is installed on the outer side of the clamping sleeve, and the positioning rod is installed on the outer side of the clamping sleeve. The multiple clamping sleeves are installed on the outer sides of the positioning sleeve and the positioning rod correspondingly, the clamping grooves are spirally formed in the outer sides of the positioning sleeve and the positioning rod correspondingly, the multiple fixing rods are arrayed on the side walls of the clamping sleeves along a spiral line, and a reinforcing mechanism is arranged on the outer sides of the clamping sleeves and comprises a rotating plate, a fixing block, a reset block, a round rod, a round hole, a reset spring and a fixing groove. The round rod is installed on one side of the unlocking sleeve, a plurality of round holes are formed in the rotating plate, the reset spring is connected with the fixing block and the reset block, and a plurality of fixing grooves are formed in the clamping and fixing groove. The double technical dilemma that a positioning system is tedious and complex to replace, and the design stability of rapid replacement is insufficient is solved.

A device (6) for autonomous adjustment of the active length of a spiral (5), for oscillators (4, 5) of the balance-spiral type, comprising a cock (12) mounted on a plate (13) of a horological movement (2) and in which a balance shaft pivots, the spiral (5) including an inner end secured to the balance shaft and an outer end secured to a balance spring stud (8) fastened to a balance spring stud holder (10), the balance spring stud holder (10) being pivotably mounted on the cock (12) concentrically to the balance shaft, and means for modifying the active length of the spiral (5).

The application discloses a method for measuring the spiral degree of pepper fruits, comprising the following steps: S1, cutting a middle fruit section with uniform spiral from the pepper fruits to be measured; S2, inserting a needle vertically to the surface of the fruits on the spiral lines of the fruit section to be measured every 1 cm in the direction perpendicular to the cross section of the fruits, and totally inserting n needles; S3, vertically fixing the fruit section to be measured on a detection table with a black background, meanwhile, placing a reference object, and using a camera with a lens perpendicular to the detection table to take a picture to obtain an original image; S4, correcting the lens distortion to obtain a corrected image; and S5, measuring the included angle phi between the first needle and the n-th needle in the corrected image to obtain the spiral angle RDM of the fruit section to be measured. The application combines the computer-aided measurement of the fruit shape, has the advantages of low cost and high precision, reduces the error of the spiral degree, and improves the calculation accuracy of the spiral angle of the pepper fruits.

The utility model discloses a combined adjustment zoom monocular microscopic device, and relates to the field of microscopic observation devices. The zoom lens assembly and the objective lens assembly are installed in the zoom sleeve, the compensation lens assembly and the fixed lens assembly are installed in a compensation sleeve, the sleeve is composed of the zoom sleeve, the compensation sleeve and a connecting cylinder, a linear groove is formed in the wall of the compensation sleeve in the length direction, a spiral sleeve is sleeved outside the compensation sleeve, and the spiral sleeve is sleeved outside the connecting cylinder. The wall of the spiral sleeve is provided with a spiral line groove which spirals regularly, a pin is inserted into the spiral line groove and the straight line groove and is connected with the compensating mirror assembly, and an outer cover is fixed outside the spiral sleeve; the wall of the zoom sleeve is provided with a linear groove along the length direction, a driving lever is inserted in the linear groove, and the tail end of the driving lever is in threaded connection with the zoom lens assembly. Compared with the prior art, the utility model can quickly adjust clear images and achieve the microscopic magnification effect; and the spiral line groove formed in the wall of the spiral sleeve is regularly spiral, so that the spiral sleeve is easy to manufacture and low in manufacturing cost.

An anti-blocking device for a paper medium pulping machine comprises a rack and a charging barrel assembly installed on the rack, and a filtering assembly communicated with the top of the charging barrel assembly is arranged on the rack. A partition plate for separating the filtering assembly from the charging barrel assembly is mounted on the rack, and a supporting frame for supporting the charging barrel assembly and an air injection assembly located at the top of the charging barrel assembly are mounted on the partition plate; the charging barrel assembly comprises a charging barrel main body and a feeding pipeline communicated with the top of the charging barrel main body, the feeding pipeline is arranged in the spiral line direction of the charging barrel main body, and an air hole corresponding to the air injection assembly is formed in the middle of the feeding pipeline; compared with the prior art, by arranging the feeding pipeline in the spiral line direction of the charging barrel main body, slurry is uniformly conveyed into the charging barrel main body through the feeding pipeline, the slurry is prevented from being blocked at the feeding port of the charging barrel main body, and under the action of the air injection assembly, the slurry can be uniformly conveyed into the charging barrel main body. Downward conveying of the slurry and dredging of the slurry at the discharge hole of the charging barrel main body are realized, and stable discharge of the slurry is ensured.

The utility model provides a spiral corn milling cutter. The spiral corn milling cutter comprises a cutter body similar to a circular truncated cone shape or an inverted cone shape, a plurality of arc-shaped edge blades and a plurality of linear edge blades, at least two layers of arc-edge blades are arranged on the side face of the cutter body close to the lower end face from bottom to top, and each layer is arranged in the circumferential direction; the multiple linear-edge blades are arranged on the side face of the cutter body in a climbing mode along multiple spiral lines in the axial direction. The arc-shaped edge blade and the linear edge blade are respectively provided with at least one arc-shaped cutting edge, and one linear cutting edge protrudes outwards relative to the side face of the cutter body. The utility model aims to solve the problem that the spiral corn milling mode is single.

The utility model relates to a data line convenient to store, which comprises a first joint and a second joint, a connecting line is fixedly connected between the first joint and the second joint, and the first joint is provided with a butt joint mechanism used for being clamped with the second joint; the peripheral side of the connecting line is wrapped with a spiral line, a groove is formed in the side of the first connector, and a spiral groove corresponding to the spiral line is formed in the groove. The utility model relates to the technical field of data lines. According to the data line convenient to store, when the data line is used, the data line can be folded and stored for different times according to different lengths, when the data line is stored, a carrier for storing the data line does not need to be used, the occupied space when the data line is stored is reduced, the phenomenon that the data line is wound is avoided, and the effect that the data line is convenient to store is achieved.