33 results about "Structure tooth" patented technology

The invention belongs to the field of precise gear testing technology, and discloses a self-mounting-reference equal-common-normal-line gear involute template. The self-mounting-reference equal-common-normal-line involute template comprises a left tooth surface, a right tooth surface, an upper reference cylindrical surface, a lower reference cylindrical surface, an upper end surface, a lower end surface and a reference hole. The gear involute template satisfies a basic requirement for a grade-1 precise gear involute template in a gear involute template national standard. Furthermore the involutes of the left special-shaped tooth surface and the right special-shaped tooth surface of the template have a common normal line and a unified expanded basic circle arc. The self-mounting-reference equal-common-normal-line gear involute template facilitates subsequent ultra-precise processing and testing of the gear involute template. Furthermore, the self-mounting-reference is used for processing and measuring and is furthermore used as a magnitude transmission reference in use of the gear involute template. The measurement results of the structure tooth profile shape deviation ffalpha and atoth profile inclination deviation offset fHalpha are not closely related with the processing error and the mounting deviation error of a measuring core shaft in a use process, thereby ensuring highconvenience in use and high dimension stability in magnitude transmission.

The invention discloses a pipette tip distributor and an automatic pipette tip assembling machine which is provided with the pipette tip distributor. The pipette tip distributor comprises a linear suspended track and a pipette tip tooth-shaped adjustor, wherein the linear suspended track comprises a linear arranging channel and supporting parts which are arranged on the two sides of the arranging channel, pipette tips are suspended on the supporting parts and linearly arranged in the arranging channel; and the pipette tip tooth-shaped adjuster is of a comb tooth-shaped structure, tooth roots are distributed on a straight line, the distance between every two adjacent tooth roots is at least larger than the distance between every two adjacent pipette tips which are linearly arranged on the suspended track. The pipette tip distributor and the automatic pipette tip assembling machine can achieve automatic and rapid packaging of the pipette tips or even rapid packaging of multiple specifications of pipette tips, and rapidness and convenience are achieved.

The present invention provides a method for improving bicycle and moped wheel spoke tooth portion structure. It is mainly characterized by that it adopts stamping mode of machining operation to make tooth portion be formed and change the diameter of spoke tooth portion, so that it can make the diameter of tooth bottom of the spoke tooth portion be greater than or equal to diameter of spoke self-body. Besides, said invention also provides the concrete structure of said improved spoke tooth portion and its concrete form, said improved spoke tooth portion structure can greately raise the strength of the spoke.

The invention discloses a lead-acid cell bus-bar pole, characterized by comprising a pole and a bus-bar which is arranged at the bottom of the pole; wherein the bus-bar comprises a collecting area and a welding area; the collecting area is a converging surface structure, and a contracting area of the collecting area is fixedly connected with the pole while an opening area is connected with the welding area; the welding area is a spaced tooth-shape structure, and the size of a tooth seam is matched with a lug of a cell pole plate. The bus-bar pole of the invention can be used for welding the cell pole plate between the tooth-shape structures without compensating lead while welding. The bus-bar pole of the invention can be welded shallowly along the edge of the tooth seam, the welding surface is thin and the internal structure of the cell pole plate cannot be damaged. The bus-bar pole of the invention does not need to compensate lead.

The invention belongs to the field of baby strollers and provides a baby stroller hand push rod reversing gear. The baby stroller hand push rod reversing gear comprises a fixed base and a rotary part. A tooth socket structure is arranged on the top of the fixed base, a matched tooth-shaped round plate is installed in the tooth socket structure, an elastic part is arranged between the tooth-shaped round plate and the tooth socket structure, a clamping groove matched with the outer contour of the tooth-shaped round plate is formed in the inner wall of the rotary part, a wedge assembly is arranged in the rotary part, and a hauling rope is led out of the wedge assembly. Under the normal condition, half of the tooth-shaped round plate in the thickness direction is located in the tooth socket structure, half of the tooth-shaped round plate in the thickness direction is located in the rotary part, the hauling rope is pulled when reversing is needed, the tooth-shaped round plate is completely pushed back into the tooth socket structure through the wedge assembly, when the rotary part is rotated to a next clamping groove position, half of the tooth-shaped round plate in the thickness direction is clamped into the clamping groove in the inner wall of the rotary part again under the acting force of the elastic part, and reversing is completed. The reversing gear is simple in structure, the rotary part and the fixed base are ingeniously combined into one structure, operation is convenient, and no additional connecting rod or fixing column needs to be arranged.

The invention discloses a wafer mounting base capable of preventing a wafer from shaking and deviating and a wafer lifting device. The wafer mounting base comprises a base and clamping plates, the clamping plates are buckled on the two sides of the base and locked and fixed to the base through fasteners, tooth groove structures are arranged at the upper ends of the clamping plates, and each toothon each tooth groove structure is provided with a tooth back, a tooth front and a tooth tip formed at the intersection of the tooth back and the tooth front. The wafer mounting base is simple in structure and convenient to use, the wafers can be prevented from shaking or deviating in the wafer moving process by arranging the special tooth groove structures on the clamping plates, the breakage rateof the wafers is greatly reduced, the broken wafers are prevented from polluting other unbroken wafers or polluting production line equipment, and the production cost of enterprises is reduced.

The invention discloses a pipe supporting device for laser cutting, and relates to the technical field of pipe cutting. The pipe supporting device comprises a box body; Sliding grooves are formed in the opposite inner side surfaces of the box body; a sliding plates is slidably connected to the inner walls of the sliding grooves through sliding blocks; a first supporting ring is fixedly connected to one side surface of the sliding plate; one end of a first telescopic rod is fixedly connected with a first electromagnet; a second supporting ring is fixedly connected to the top of a supporting table; a third supporting ring is fixedly connected into a second sliding clamping groove through a sliding block; the peripheral side surface of the third supporting ring is fixedly connected with a tooth-shaped structure; one side surface of the tooth-shaped structure is engaged with a driving gear; and one end of the second telescopic rod is fixedly connected with a second electromagnet. Through the design of the first electromagnet, the second sliding clamping groove, the second electromagnet, the driving gear and the tooth-shaped structure, the pipe supporting device can clamp a pipe to rotate by 360 degrees without disassembly for readjustment of the direction of the pipe, and is simple in structure, convenient to operate, high in working efficiency and high in practicability.

The invention discloses an infinitely variable transmission with multiple motors connected in series. The infinitely variable transmission is characterized by comprising a base, an upper cover plate and an outer shield; the base and the cover plate are mounted at the two ends of the outer shield correspondingly; the base, the cover plate and the outer shield form a containing cavity; an output shaft serving as an output end is arranged on the upper cover plate; a main shaft rotating system driving the output shaft and two or more collateral planet driving systems are arranged in the containing cavity; the main variable transmission adopts a planetary structure, outer ring structure teeth and a coaxial bearing are added, the power and speed of a central motor and an outer motor are coupled on one shaft through a special structure and are coupled together layer by layer in a multistage mode; and the special structure ensures that tooth phases do not need to be separated, and the multiple motors can be divided to work independently and also united smoothly to work. The technology can be applied to the situation that one or more motors are coupled together in a stepless mode, multiple controlling modes of speed change are realized, and the three key requirements, namely high speed, smooth-going and energy-saving, of new-energy automobile super engines can be met in combination with the characteristics of a hollow-cup motor. The product further can be applied to collecting a great amount of small energy for integration, such as wind electricity integration and small hydropower station integration.

The invention discloses a multi-compartment burette facilitating titration of multiple reagents based on an adjusting assembly, and relates to the technical field of titration equipment. The burette comprises a vertical pipe; a first compartment, a second compartment and a third compartment are respectively arranged in the vertical pipe; one circumferential side surface of an arc-shaped vertical rod is fixedly connected with a volume scale line; and the upper surface of a T-shaped sliding block is fixedly connected with an annular inner gear ring. A tooth-shaped structure is fixedly connectedto the circumferential side face, close to the bottom, of the arc-shaped vertical rod. The peripheral side surface of the tooth-shaped structure is meshed with the inner peripheral side surface of theannular inner gear ring; a first titration nozzle, a second titration nozzle and a third titration nozzle are respectively formed in the bottom of the vertical pipe. Through the design of the first compartment, the second compartment, the third compartment, the third annular sliding groove and an inclined rod, various reagents can be filled at the same time, different titration requirements are met, the titration experiment efficiency is greatly improved, experiment failures caused by untimely titration are effectively avoided, and the burette has a supporting function and does not need to use an iron stand.

The invention provides a gas film base structure applied to plateau frozen earth and a construction method of the gas film base structure. The gas film base structure includes a gas film body and a gas film base, a gas film cavity is formed by enclosing between the gas film body and the ground, the gas film body is mounted on the gas film base, and the gas film base comprises a base body and a tooth structure, wherein at least part of the base body is buried under the ground; the tooth structure is arranged on the side elevation surface of the base body and used for improving the pull-out resistance between the gas film base and a ground layer. According to the gas film base structure applied to plateau frozen earth and the construction method of the gas film base structure, the problems that the gas film structure in the prior art cannot give consideration to both frozen earth layer protection and pull-up force satisfaction is solved.

The invention provides a dry cutting head or cutting roller assembly with a detachable tooth holder, and belongs to the technical field of accessories of cutting devices of coal mining machinery. Thedry cutting head or cutting roller assembly comprises a conical cutting tooth, the conical tooth holder, a connecting seat, a fixing block and a cutting head or cutting roller; the conical cutting tooth comprises a tooth handle, a tooth shoulder, a tooth rod and a conical part, the tooth handle and the tooth rod are each of a cylindrical structure, the tooth shoulder is of a circular truncated cone structure, the bottom surface of the tooth shoulder is connected with the tooth handle, and the top surface of the tooth shoulder is connected with the tooth rod through an annular transition curvedsurface; the conical part is positioned on the tooth rod, a hard alloy is brazed at the top, and a plurality of oval anti-bending beams are uniformly arranged on the circumferential surface; a mounting hole is formed in the conical tooth holder, and a quick insertion tenon is arranged at the lower part; the connecting base is welded to the cutting head or the cutting roller and provided with an inserting groove matched with the quick insertion tenon; and the fixing block is used for sealing the insertion opening of the inserting groove. According to the dry cutting head or cutting roller assembly with the detachable tooth holder, the bending resistance of the cutting tooth can be improved, and meanwhile, the tooth holder is detachably connected with the cutting head or the cutting roller.

The invention discloses an inclination angle adjusting mechanism of a seat, which comprises a seat frame and an inner frame, wherein the left side and the right side of the front end of the inner frame are rotationally connected to the inner side of the seat frame, the rear end of the inner frame is rotationally connected with a rotating mechanism, one end of the rotating mechanism is rotationally connected with the rear end of the seat frame, the other end of the rotating mechanism is connected with an adjusting assembly, the adjusting assembly comprises an upper shell and a lower shell which can rotate relatively, the upper shell is fixedly connected with the seat frame, the lower shell is fixedly connected with the rotating mechanism, an inner gear ring is arranged on the inner side of the lower shell in the circumferential direction, a plurality of tooth blocks are further movably arranged in the lower shell, tooth-shaped structures are arranged on the outer sides of the tooth blocks, first clamping hooks are arranged on the inner sides of the tooth blocks, a rotating block located on the inner side of the tooth block is rotationally connected into the lower shell, and a second clamping hook opposite to the first clamping hook is arranged on the rotating block. By means of the mode, the inclination angle adjusting mechanism of the seat is firm in locking, convenient to operate, smaller in actual occupied space, easier to produce and convenient to install, and then the production efficiency is improved.

The invention provides a dismountable cutting tool assembly having a dust setting function and belongs to the technical field of accessories of a cutting device for a coal mine mining machinery. The dismountable cutting tool assembly comprises conical cutting teeth, a conical tooth holder, a dust setting connecting base and a fixing block; each conical cutting tooth comprises a tooth handle, a tooth shoulder, a tooth rod and a conical part; each tooth handle and each tooth rod are both of a cylindrical structure; the tooth shoulder is of a circular platform structure; the bottom surface of each tooth shoulder is connected with the corresponding tooth handle; the top surface of each tooth shoulder is connected with the corresponding tooth rod through an annular transition curve surface; theconical part is positioned on the tooth rod; hard alloy is brazed at the top of the conical part; the circumferential surface is uniformly provided with a plurality of oval bending resisting beams; the conical tooth holder is provided with a mounting hole; the lower part of the conical tooth holder is provided with a quick inserting tenon; the dust setting connecting base is provided with an inserting groove; the bottom surface of the dust setting connecting base is provided with a water distribution interface; the rear part of the dust setting connecting base is provided with a dust settingnozzle; an internal water channel is arranged inside the dust setting connecting base; and the fixing block is used for sealing an inserting opening of the inserting groove. The dismountable cutting tool assembly having the dust setting function can improve the bending resistance of the cutting teeth and simultaneously realizes detachable connection between the tooth holder and a cutting head or acutting roller.

The invention provides a Fresnel lens. The Fresnel lens includes: a main body portion; the tooth structures are annular or strip-shaped, when the tooth structures are annular, the annular tooth structures are concentrically arranged on the surface of one side of the main body part, and when the tooth structures are strip-shaped, the strip-shaped tooth structures are sequentially arranged on the surface of one side of the main body part in the first direction; each strip-shaped tooth structure extends in the second direction, and the first direction is perpendicular to the second direction. The tooth height or the tooth pitch of at least part of the tooth structures changes irregularly in the arrangement direction. The Fresnel lens solves the problem that a Fresnel lens in the prior art is poor in appearance.

The disclosure relates to a chain roller for a rear bicycle gearshift mechanism. The chain roller comprising a rotatory bearing, a toothed ring with teeth formed thereon, and a support structure which connects the rotary bearing and the toothed ring. The toothed ring and support structure are formed from different materials and are connected to one another radially and axially.

The invention discloses a motor iron core structure. The motor iron core structure comprises a core body (10), the core body (10) comprises annular yoke parts (11), and tooth parts (12) are annularlydistributed outside the yoke parts (11); the tooth parts (12) are of a cuboid structure, the tooth parts (12) sleeves insulating shells (20) in the radial direction, and winding wires are wound aroundthe insulating shells (20). Insertion pieces (30) are used for limiting the radial positions of the insulating shells (20), axial grooves (13) are formed in the side faces of the tooth parts (12), and the grooves (13) are matched with the insertion pieces (30). The motor iron core structure has the characteristics of being easy to assemble and good in stability.

The invention provides a wet cutting head or cutting drum assembly with detachable tooth seats, and belongs to the technical field of coal mine mining mechanical cutting device accessories. The wet cutting head or cutting drum assembly comprises conical cutting teeth, conical tooth tooth seats, dust falling connecting seats, fixing blocks and a cutting head or cutting drum, wherein each conical cutting tooth comprises a tooth shank, a tooth shoulder, a toothed rod, and a conical part; both the tooth shanks and the tooth rods are cylindrical structures; the tooth shoulders are of circular truncated cone structures, the bottom surfaces of the tooth shoulders are connected with the tooth shanks, and the top surfaces of the tooth shoulders are connected with the tooth rods through annular transition curved surfaces; the conical parts are located on the tooth rods, hard alloys are brazed to the tops of the conical parts, and a plurality of oval bending resistant beams are uniformly arrangedon the circumferential surfaces of the conical parts; mounting holes are formed in the conical tooth tooth seats, and quick inserting tenons are arranged on the lower parts of the conical tooth toothseats; inserting grooves are formed in the dust falling connecting seats, water distribution interfaces are formed in the bottom surfaces of the dust falling connecting seats, dust falling nozzles are arranged at the rear parts of the dust falling connecting seats, and internally-arranged water routes are arranged inside the dust falling connecting seats; and the fixing blocks are used for closing inserting inlets of the inserting grooves. The wet cutting head or cutting drum assembly can increase the bending resistance of the cutting teeth, and achieves the detachable connection between thetooth seats and the cutting head or the cutting drum.

A stator tooth includes an arc-shaped stator yoke portion and a stator tooth portion. The arc-shaped stator yoke portion extends along an arc having an axis as a center. The stator tooth portion includes a tooth body segment and two shoe-shaped structures. The tooth body segment, protruding along a centripetal axis from the arc-shaped stator yoke portion, has a first inner arc-shaped edge defined with a first center and a first radius. The centripetal axis passes through a center point of first inner arc-shaped edge, the first center and the axis. The two shoe-shaped structures extend oppositely, but symmetrically, from the tooth body segment, and each the shoe-shaped structure has a second inner arc-shaped edge and an inner-edge end point. The second inner arc-shaped edge, extending from the first inner arc-shaped edge to the inner-edge end point, has a second radius larger than the first radius.

In order to obtain an electromagnetic wave lens product which is higher in production efficiency, lower in cost, light in weight, better in performance index and better in consistency of performance indexes in all directions on a cylindrical lens, the following technical scheme is adopted: the electromagnetic wave lens comprises medium particles and an outer structure; the outer structure body is of a cylindrical structure, and a plurality of tooth-shaped structures are distributed in the outer structure body in the circumferential direction. The width of the top of the tooth-shaped structure is smaller than that of the root of the tooth-shaped structure, and the top of the tooth-shaped structure faces the interior of the outer structure body. The space inside the outer structure is called as a medium cavity, and the medium cavity is filled with the medium particles; the dielectric constant value of the outer structure and the dielectric constant value of the tooth-shaped structure are lower than the dielectric constant value of the dielectric particles. The columnar electromagnetic wave lens has the advantages of being simple in structure, low in cost, easy to produce in batches, high in product consistency and stable in electrical performance.