16 results about "Conical tooth" patented technology

The application relates to the technical field of contrast auxiliary devices, and discloses an eye fundus imaging device positioning auxiliary device which comprises a supporting base, a guide rod is fixedly installed at the top of the supporting base, a rotating shaft three is driven to rotate through a rotating knob, the rotating shaft three drives an umbrella-shaped tooth two to mesh with a conical tooth two to rotate, the rotating shaft two, the conical tooth one and the umbrella-shaped tooth one are matched with synchronous transmission, power is transmitted to a rotating shaft one, a convex connecting pin is lapped through electromagnetic coil magnetization iron core adsorption, then the double worm gears synchronously mesh with the worm wheel to drive the transmission screw rod, so that the different patient height adaptation requirements are realized, secondly, the rotating knob is matched with another group of electromagnetic coil magnetization iron core adsorption convex connecting pin lapping, the fixed shaft and the gear are driven to rotate, the gear meshes with the rack to drive the inclined block two to slide, the arc-shaped supporting plate is pushed to adjust the posture, then the eye fundus imaging eye position is matched, so that the cumbersome process of multiple operation piece switching is avoided, and the demand of multiple eye position examination is met.

The utility model provides a sintering material layer ventilation punching device which comprises a round roller and conical teeth evenly arranged on the round roller, the two ends of the round roller are rotationally connected with supports through rotating shafts respectively, and the two supports are fixed to the two sides of a trolley channel in front of a sintering machine head respectively. Tooth holder arrays are evenly arranged in the circumferential direction of the outer wall of the round roller and comprise tooth holders evenly arranged in the length direction of the round roller, and the conical teeth are detachably connected to the tooth holders. According to the utility model, different conical teeth can be replaced according to production requirements without being driven by external force to rotate, so that the efficiency of punching air holes is improved, and the production cost is reduced.

The utility model discloses a fool-proof mechanism for interchanging inserts in a double-sided die, which comprises a die template main body, the sides of the die template main body, which are far away from each other, are provided with insert grooves, one side of the interior of each insert groove is provided with a positioning groove, and the interior of each insert groove is connected with a die insert in a sliding manner. And one side of each mold insert is fixedly connected with a positioning block. Through the arrangement of the sliding rod, the shifting fork, the pawl, the spring, the ratchet wheel and the like, under the elasticity of the spring, the pawl is clamped on the ratchet wheel, then the knob is rotated, the knob drives the first conical tooth to rotate through the rotating shaft, the first conical tooth drives the bidirectional threaded rod to rotate through the second conical tooth, the bidirectional threaded rod drives the ratchet wheel to rotate, and the ratchet wheel pushes the pawl to move. The pawl pushes the sliding rod to move and compresses the spring, when the ratchet wheel rotates to the next clamping tooth, the pawl is clamped into the corresponding clamping tooth under the elasticity of the spring, and the situation that the two-way threaded rod drives the movable plate to loosen due to vibration is avoided.

This invention relates to a tricone drilling assembly having a drilling direction and a rotation direction. The tricone drilling assembly includes at least a set of three rotatable drilling cones. Each drilling cone includes a conical tooth seat and a set of teeth arranged along the conical tooth seat in a plurality of concentric cutting rings. Each cutting ring generally surrounds the conical tooth seat at a specific cone height. Each tooth protrudes outward from the conical tooth seat. The drilling cones generally lack cutting grooves or interlocking areas between adjacent cutting rings. The size and shape of each tooth are configured to suppress interference with teeth on adjacent drilling cones of the set of three drilling cones.

The invention provides a hydraulic scum cleaning grab bucket, and belongs to the technical field of cleaning grab buckets. The rotating groove is formed in the side end of the bucket rod, a rotating disc is rotationally connected between the circumferential inner walls of the rotating groove, the side end of the rotating disc is fixedly connected with a rotating block, the upper side of the rotating disc is fixedly connected with a fixed arc-shaped tooth rake, and the lower side of the rotating disc is fixedly connected with a conical tooth rake; the hollow clamping blocks are inserted between the inner walls of the clamping grooves, then the positions of the conical tooth rakes and the fixed arc-shaped tooth rakes are turned by 180 degrees, turning of the conical tooth rakes and the fixed arc-shaped tooth rakes is achieved, then the hydraulic type scum cleaning grab bucket can clamp different soft and hard scum in a targeted mode, and the hydraulic type scum cleaning grab bucket adapts to cleaning work of various scum at a hydraulic power plant gate. The bucket teeth are quickly turned, so that different soft and hard dross in a hydraulic power plant can be simultaneously fished by the grab bucket, and the efficiency of fishing the dross in the hydraulic power plant by the grab bucket is improved.

The invention relates to the technical field of gear positioning body design and modeling, and discloses a gear positioning body design and modeling method and device, and the method comprises the steps: obtaining tooth profile parameters of a straight-tooth bevel gear; calculating a tooth die included angle and a tooth die inclination angle of a positioning body matched with the straight-tooth bevel gear based on the tooth profile parameters; and constructing a positioning body model matched with the straight-tooth bevel gear according to the tooth mold included angle and the tooth mold inclination angle. According to the method, the problems of low precision and poor efficiency caused by machining errors, dependence on design experience and lack of verification means of a traditional surface contact positioning body are solved.

The utility model relates to the technical field of coupling clearance adjustment, and disclose a tooth coupling of adjustable clearance, including two groups of shell. The tooth coupling of adjustable clearance, through the setting of the inner gear, the external gear and the pusher assembly, there will be a certain clearance between the inner gear and the external gear under the installation or long time use of coupling, at this moment, rotate the rotary valve, the rotary valve rotation drives the screw rod to rotate, the limiting sleeve rotates in the inside of the sleeve, the inner gear moves on the screw rod when the screw rod rotates, since the inner gear and the external gear tooth surface are all conical, when the inner gear moves, the inner conical tooth surface and the conical tooth surface of the external gear will change the degree of adhesion, through the accurate control of the moving distance of the inner gear, can make the tooth surface that originally exists the clearance realize the close meshing again, make the cooperation clearance between the inner gear and the external gear be eliminated, thereby reach the purpose that adjusts and compensates the clearance, guarantee the stability and precision of coupling transmission.

The utility model discloses a conical toothed thread anti-loose connecting structure which comprises a nut and a screw, a first convex cone is arranged on the nut, an internal thread of the nut extends into the first convex cone, a first connected piece between the nut and the screw is provided with a first concave cone, and the first convex cone is matched with the first concave cone. The taper of the first concave cone is larger than that of the first convex cone, and conical teeth are arranged on the outer side of the first convex cone. Compared with the prior art, the first convex cone of the nut is tightly abutted against the first concave cone of the first connected piece, the first convex cone is driven to tightly hold the screw rod, and when the loosening tendency occurs, the first connected piece has the upward moving tendency to apply force to the nut, so that the nut is prevented from being loosened. And the force enables the threads at the first convex cone of the nut to generate inward radial pressure along the first concave cone, so that the screw rod is tightly held, the nut is prevented from loosening, and the anti-loosening requirement is met. And secondly, the conical teeth on the first convex cone can increase the friction force between the first convex cone and the first connected piece, and the anti-loosening effect is further improved.

The application relates to a conical complex piece and a drill bit, which comprises a base and a conical tooth arranged on the top surface of the base, the bottom end of the conical tooth is connected with the top surface of the base, the top end of the conical tooth is provided with an impact surface for contacting with the external environment, first recessed surfaces and second recessed surfaces are arranged on the circumferential outer wall of the conical tooth and are spaced apart in the circumferential direction, and the side edges of the first recessed surfaces and the second recessed surfaces which are close to each other both extend along the generatrix direction of the conical tooth, and a ridge is formed between the first recessed surfaces and the second recessed surfaces. The ridge can effectively scrape the stratum structure during rotation, improves the attackability and the ability of eating into the stratum, and finally improves the efficiency of the conical complex piece during drilling. In addition, the impact surface arranged at the top end of the conical complex piece has strong impact resistance when contacting with the stratum, and finally the drill bit has strong impact resistance and strong scraping effect.

The invention discloses a hard alloy conical tooth of a gradient structure and a preparation method and application thereof.The hard alloy conical tooth is divided into a hard alloy tooth root, a connecting layer of an N-layer gradient structure and a hard alloy tooth tip from bottom to top, and the hard alloy tooth tip comprises, by volume, 3-5% of Co and 0-40% of cBN; the hard alloy tooth root comprises the following components in percentage by volume: 20-25% of Co, 0-10% of cBN and the balance of carbide, the connecting layer of the gradient structure comprises Co and carbide, and the volume fraction of Co is sequentially decreased or periodically changed from bottom to top within the range of 5-20%. According to the hard alloy conical tooth with the gradient structure, the cutter has excellent wear resistance and impact resistance and long service life, and the drilling efficiency and the service life of the tooth for drilling and digging equipment such as a shield tunneling machine are improved through the design.

The invention relates to the technical field of coating curing, in particular to a curing device for an anti-corrosion and anti-seepage composite coating of a pipeline, comprising: an end clamping mechanism comprising an end disc, an end cylinder, a movable plate, a semicircular clamping ring, a base plate and a main conical fluted disc; the movable heating mechanism comprises semicircular lantern rings, a supporting rod, an I-shaped wheel and a chain, the two semicircular lantern rings are symmetrically arranged relative to the vertical plane to form a curing barrel, and a plurality of heating curing strips are arranged on the inner walls of the semicircular lantern rings in an array mode in the axis direction; the fixing mechanism comprises base tables and a flow guide frame, the two end clamping mechanisms are symmetrically arranged at the two ends of the movable heating mechanism, the end clamping mechanisms are fixedly installed on the top faces of the base tables, the flow guide frame is fixedly connected to the position between the two base tables, and a rectangular frame at the upper end of the flow guide frame is used for limiting and guiding when the movable heating mechanism moves; the curing device can realize effective curing of inner and outer coatings of the pipeline, the whole curing process is simple and convenient to operate, and the curing uniformity is good.

The utility model relates to the technical field of slope supporting, and provides a slope supporting structure for blasting excavation of a pumped storage power station. When a currently laid slope is changed due to terrain influence, a ground drilling nail at each through groove can be firstly pulled out, and then a screw cover is screwed to drive a first conical tooth to rotate; a second conical tooth meshed with the side bottom of the first conical tooth drives a threaded rod to rotate synchronously, then an extension supporting sliding plate in threaded connection to the outer side of the threaded rod slides in a sliding way, and through the design, the overall combination length of the slope supporting sleeve plate and the extension supporting sliding plate can be adjusted to be matched with the length of a current slope; secondly, secondary positioning and fixing work is completed on the slope supporting sleeve plate and the extension supporting sliding plate at the current side slope through the ground drilling nails, and compared with a comparison file, the overall length of the slope supporting sleeve plate and the extension supporting sliding plate can be rapidly adjusted without cutting or splicing till the overall length is matched with the length needed by current side slope supporting; therefore, the purpose of reducing construction difficulty and time cost is achieved.

The utility model discloses a manual filter element disassembly-free stirring cleaning ultrafilter, and relates to the technical field of ultrafilters. The device comprises a shell, a sealing cover is arranged on the upper end face of the shell, a filter element body is arranged in the shell, a blocking barrel is fixed to the lower end of the shell, a conical barrel located in the blocking barrel is fixed to the lower end of the shell, and a second conical tooth block located in the blocking barrel is arranged under the conical barrel. A first conical tooth block meshed with the second conical tooth block is arranged in the blocking barrel, a through hole is formed in the surface side wall of the blocking barrel, an insertion block inserted into the through hole is fixed to the shaft rod end of the first conical tooth block, a rocker is arranged outside the blocking barrel, and the end of the rocker is inserted into the insertion block through an formed notch. Through linkage meshing rotation of the first conical tooth block and the second conical tooth block, forward and reverse rotation of the filter element body can be controlled, and the cleaning effect on the filter element body is improved.

The application relates to a machining device and machining process of a three-head variable-pitch conical tooth bar, and relates to the three-head variable-pitch conical tooth bar machining technical field; the machining device of the three-head variable-pitch conical tooth bar comprises a device body, a rotating shaft, a rotating mechanism and a cutting mechanism are arranged on the device body, the rotating mechanism is used for driving the rotating shaft to rotate relative to the device body, the cutting mechanism is used for cutting the side wall of a workpiece in rotation, a feeding mechanism is further arranged on the device body, the feeding mechanism comprises a feeding frame, a feeding piece and a clamping assembly, the feeding piece is used for driving the feeding frame to move along the axis direction of the rotating shaft, the clamping assembly is arranged on the feeding frame and is used for clamping the workpiece on the rotating shaft, and the cutting mechanism is further used for cutting the end of the part, where three spiral surfaces on the workpiece are all machined, to separate the machined three-head variable-pitch conical tooth bar. The application has the effect of improving the machining efficiency of the three-head variable-pitch conical tooth bar.

According to the technical scheme, the impact crushing type PDC drill bit assembly comprises a main body and an impact head, the impact head is installed in the middle of the top of the main body, a square connecting column is installed at the bottom of the impact head, an inner groove is formed in the middle of the interior of the main body, and an inner hole is formed in the bottom of the interior of the main body; and a movable column is installed in the inner hole, reverse rings are installed on the two sides, close to the top, of the outer surface of the movable column, a cutter wing is installed on the outer surface of the main body, a conical tooth A is installed on one side of the cutter wing, and a conical tooth B is installed on the portion, located in the gap of the conical tooth A, of the outer surface of the cutter wing. According to the impact crushing type PDC drill bit assembly, the problems that when an existing PDC drill bit drills holes, rock is mainly crushed and drilled through rotating conical teeth, the drilling pressure is relatively fixed, and the rock crushing efficiency is relatively poor are solved, the time needed for rock crushing is shortened, and therefore the drilling efficiency of the drill bit is improved.

The utility model discloses a fast buckle type installation louver blade advertisement gate which comprises a machine box, a main rod, blades, an auxiliary rod and a floor rod, a main rod inserting buckle piece is arranged in the main rod, conical teeth are arranged outside the main rod inserting buckle piece, a first rotating shaft is arranged in the main rod inserting buckle piece, the first rotating shaft is transversely arranged in the main rod inserting buckle piece, and a second rotating shaft is arranged in the main rod inserting buckle piece. An upper connecting piece is arranged on the upper portion of the blade, conical teeth are arranged outside the upper connecting piece, the upper connecting piece is in meshed rotating connection with the main rod inserting fastener, a second rotating shaft is arranged in the upper connecting piece and is vertically arranged, one end of the second rotating shaft is clamped in an inner shaft of the upper connecting piece, and the other end of the second rotating shaft is clamped in the first rotating shaft. Lower connecting pieces are arranged on the lower portions of the blades, auxiliary rod inserting and buckling pieces are arranged in the auxiliary rods, and the lower connecting pieces are rotationally connected with the auxiliary rod inserting and buckling pieces. The advertisement gate is simple in overall structure, free of too many complex accessories, easy to replace and convenient to maintain, and synchronous steering of all the blades in the advertisement gate is achieved.