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27 results about "Structure tooth" patented technology
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Structure & function of teeth. The tooth has two anatomical parts. The crown of a tooth is that part of the tooth which is covered with enamel and this is the part usually visible in the mouth. The root is the part embedded in the jaw. It anchors the tooth in its bony socket and is normally not visible.
Swing gas transmission mechanism based on metal tube spring
The invention provides a swing gas transmission mechanism based on a metal tube spring. The swing gas transmission mechanism comprises the metal tube spring, a tooth-shaped supporting structure and a tooth comb support. A plurality of supporting columns of the tooth comb bracket are arranged along the circumferential direction; tooth-shaped supporting structures protruding outwards in the radial direction are distributed on a supporting column of the tooth comb support in the axial direction. Gaps exist between the tooth-shaped supporting structures in the axial direction, and the metal tube spring penetrates through the gaps and is supported. The metal tube spring is of a hollow structure and is provided with an inlet and an outlet. The metal pipe spring is provided with a spiral pipeline part, and the spiral pipeline part is arranged on the outer side of the tooth comb support in a surrounding mode through the gap. The invention provides a structural combination of a single metal spiral pipeline and a comb-shaped support, and the process difficulty of multi-pipe binding and winding is reduced.
Owner:SHANGHAI INST OF SPACE PROPULSION
Heat exchange tube, heat exchanger and air conditioner
PendingCN121612109AEvaporators/condensersAir conditioning systemsTooth numberHeat pipe heat exchanger
The heat exchange tube comprises a tube body, a plurality of tooth structures spirally extending in the length direction of the tube body are arranged on the inner circumferential wall of the tube body, the tooth structures are arranged in the circumferential direction of the tube body at intervals, the ratio of the tooth number of the tooth structures to the tooth height of the tooth structures is 1000-2590.7, and the outer diameter of the tube body is 6.8-7.5 mm. According to the heat exchange tube, the tooth structures spirally extending in the length direction of the tube body are arranged on the inner circumferential wall of the tube body, the multiple tooth structures are arranged in the circumferential direction of the tube body at intervals, and for the heat exchange tube with the outer diameter of the tube body being 6.8 mm-7. 5 mm, the ratio of the tooth number of the tooth structures to the tooth height of the tooth structures is 1000-2590.7; the pressure drop of the heat exchange tube can be reduced, the flow path can be simplified under the condition that the heat exchange performance is not changed, and the complexity of the manufacturing process is reduced.
Owner:MIDEA GROUP CO LTD +1
Method of manufacturing a multi-material composite gear and composite gear
The application discloses a manufacturing method of a multi-material combined gear and the combined gear, and the manufacturing method of the multi-material combined gear comprises the following steps: preparing a base body; manufacturing the base body by using a first material, and the base body is provided with a mounting part; preparing a tooth part; manufacturing the tooth part by using a second material, the hardness of the second material is greater than that of the first material, the tooth part is provided with a matching part, and the outer periphery of the tooth part is provided with a tooth; and assembling and fixing; after the base body and the tooth part are prepared, the matching part is sleeved on the mounting part and is in interference fit with the mounting part, so as to fix the tooth part and the base body. The gear is divided into two parts of the tooth part and the base body and is manufactured by using different materials, the problem that a multi-step structure gear is difficult to form is solved, and the mechanical properties of each part of the gear are optimized, the combined design not only realizes the demand of the complex structure design of the gear, improves the hardness and wear resistance of the tooth part, and enhances the stability and reliability of the overall structure.
Owner:GUANGDONG DONGMU NEW MATERIALS
Driven gear column
The utility model belongs to the technical field of gear columns, and particularly relates to a driven gear column which comprises a mandrel. The tooth-shaped structure is movably arranged on the outer side wall face of the core shaft, the tooth-shaped structure can be replaced and maintained after the tooth-shaped structure is abraded, the core shaft is reserved for continuous use, and therefore the use cost can be reduced.
Owner:浙江柏思达齿轮股份有限公司
Pressing block type oscillating tooth chain wheel assembly
The utility model provides a pressing block type oscillating tooth chain wheel assembly, a plurality of tooth grooves are evenly formed in the middle of a chain wheel shaft in the circumferential direction, and a plurality of first fixing holes are formed in the groove bottoms of the tooth grooves; a plurality of second fixing holes are uniformly formed in the chain wheel shaft at the two ends of the tooth grooves; the top of each tooth row is of a chain nest structure, the tooth rows correspond to the tooth grooves in a one-to-one mode, a plurality of third fixing holes are formed in the tooth rows, the tooth rows are arranged in the corresponding tooth grooves in an inserted mode, the two ends of each tooth row extend out of the corresponding tooth grooves, the pressing blocks are arranged between the adjacent tooth rows respectively, fourth fixing holes are formed in the pressing blocks, and the side walls of the pressing blocks abut against the side walls of the adjacent tooth rows. According to the chain wheel assembly, the tooth grooves and the tooth rows are arranged, the tooth rows are detachably connected, when the chain wheel assembly needs to be maintained, only the damaged tooth rows need to be replaced, the maintenance and repair time of the chain wheel assembly is greatly shortened, meanwhile, the tooth rows can be fixed to the chain wheel shaft more firmly through the pressing blocks, and the service life of the chain wheel assembly is prolonged. And the overall strength of the chain wheel assembly is greatly improved.
Owner:ZHANGJIAKOU JINGYI COAL MINING MASCH CO LTD
Loop-forming integrated insertion piece and installation structure thereof
The utility model relates to the technical field of computerized flat knitting machines, in particular to a looping integrated insertion piece and an installation structure thereof, which comprise an insertion piece part and a tooth opening part, the insertion piece part and the tooth opening part are of an integrally formed structure, the tooth opening part is arranged at the lower edge of one end of the insertion piece part, and the end part of the tooth opening part is of a trapezoidal structure. The insertion piece part and the tooth opening part are both of a long-strip-shaped structure, the missed stitch phenomenon during looping and knocking-over is effectively controlled, the trapezoidal structure of the end of the tooth opening part extends to the outer side of the needle plate, the tensile force of a roller is dispersed to the tail end base according to the mechanical traction principle, the insertion piece part and the tooth opening part are integrally and evenly stressed and do not swing, and no matter the insertion piece part and the tooth opening part are stressed up, down, left and right during knitting, the knitting effect is good. And the angle and the looping distance are not changed, so that the quality and the effectiveness of the woolen sweater piece manufacturing are effectively improved.
Owner:DONGZHU (CHONNAM) KNITTING MACHINERY CO LTD
Split type acetabulum filling cushion block driving tool
The invention provides a split type acetabulum filling cushion block driving-in tool, and belongs to the technical field of medical instruments. Performing main body mold testing; the tooth structure is fixedly connected to one side end of the main body test mold; the notch is formed in the lower end of the main body test mold; the acetabular cup prosthesis test mold is positioned in the notch; the striking head is positioned in the acetabular cup prosthesis test mold; the main body test mold adopts an L-shaped design and is preliminarily fixed through the sliding nail holes, so that fine adjustment can be performed in an operation to reach an optimal position, and accurate placement of the acetabulum filling cushion block is ensured. Due to the design that the tooth peak of the tooth structure is gradually thinned from the root to the head, the tooth structure can be embedded into the acetabular fossa of the host bone more smoothly, the operation difficulty is reduced, and the stability is improved.
Owner:BEIJING CHUNLIZHENGDA MEDICAL INSTR
A method and system for modifying the tooth surface topology of an engine arc end gear disc
The present invention provides a method and system for modifying the tooth surface topology of an engine arc-end gear disc. Using a meshing model of the convex and concave teeth of the arc-end gear disc and a preset tooth surface error, the method constructs an arc-end tooth difference surface, obtains corresponding tooth surface geometric parameters, calculates the mismatch between discrete points on the tooth surface based on these geometric parameters, and obtains the tooth surface topology and theoretical processing parameters of the tooth surface after topological modification. The method and system then adjusts these theoretical processing parameters so that the tooth surface topology approaches the preset tooth surface error, reversely adjusts the theoretical processing parameters to compensate for the tooth surface error, and obtains actual processing parameters based on a preset optimization algorithm, thereby achieving tooth surface topological modification. This method and system can effectively address the edge contact and stress concentration issues that exist on the tooth surfaces of aircraft engine arc-end gear disc structures, thereby improving the processing efficiency of engine arc-end gear disc tooth surfaces.
Owner:HUNAN INSTITUTE OF ENGINEERING
Bone conduction product detection device
ActiveCN223485929UAnalysing solids using sonic/ultrasonic/infrasonic wavesSubsonic/sonic/ultrasonic wave measurementBone conduction hearingCantilever
The utility model relates to the technical field of bone conduction product testing, in particular to a bone conduction product detection device which comprises a base, the base is of a concave structure, and a detachable upper cover is installed on the top face of the base. A bone position structure is arranged on the inner bottom surface of the base, and a bone conduction signal collector is mounted in the bone position structure; a balance weight mechanism is arranged in the base and comprises a balance weight cantilever, a tooth-shaped protruding structure is arranged at the position, over the bone position structure, of the bottom of the balance weight cantilever and used for climbing and pulling an elastic rubber band, and a height adjusting assembly vertically and fixedly installed on the inner bottom face of the base is hinged to one end of the balance weight cantilever. A limiting base is fixedly arranged at the end, away from the height adjusting assembly, of the top face of the balance weight cantilever, and a balance weight is installed in the limiting base. According to the utility model, the transmission path of sound leakage can be structurally blocked through the matching arrangement of the upper cover and the base, and the sound leakage problem during the testing of bone conduction hearing-aid products is fundamentally solved.
Owner:SHANDONG INST OF MEDICAL DEVICES & DRUG PACKAGING INSPECTION
Internal rib plate structure of excavator bucket rod
ActiveCN224243977Uimprove performanceExtended service lifeMechanical machines/dredgersSupporting systemGradient material
The utility model provides an internal rib plate structure of an excavator bucket rod, which belongs to the technical field of engineering mechanical structures and comprises a fixed shell, an inclined rib plate fixedly mounted on one side of the fixed shell, a front rib plate fixedly mounted on the other side of the fixed shell, a connecting component arranged on the surface of the fixed shell and a supporting component arranged in an inner cavity of the fixed shell. Through the collaborative design of the connecting assembly and the multi-layer composite supporting assembly, the overall performance of the bucket rod is improved, the service life of the bucket rod is prolonged, the connecting assembly adopts the welding plate tooth structure, the tooth plate splicing design and the inserting groove and splicing plate combined design, rapid installation and multiple fixing are achieved, and the service life of the bucket rod is prolonged. The assembling efficiency is improved, the reliability of the connecting part is ensured, and the problems that a traditional rib plate is not firm in welding and complex in installation are effectively solved; the supporting assembly forms an optimized stress transfer path and a three-dimensional supporting system through gradient material layout of the connecting layer, the supporting layer, the reinforcing layer, the fixing layer and the filling layer in cooperation with a longitudinal penetrating rib structure.
Owner:JINING JINCHANGQING MACHINERY CO LTD
Bridge expansion joint structure capable of damping and reducing noise
ActiveCN223398042UBridge structural detailsVibration suppression adjustmentsClassical mechanicsExpansion joint
The utility model relates to the technical field of bridges, in particular to a bridge expansion joint structure capable of damping and reducing noise, which comprises a bridge plate, and a support is welded on the surface of the bridge plate. Through the cooperation of the elastic piece, the damping plate, the damping spring, the damper, the fixing pin shaft, the guide groove and the fixing plate, the damping plate, the elastic sealing strip and the elastic piece which are of the special design structure are utilized, when dust and other sundries fall into the expansion joint, the sundries can be extruded out of the expansion joint through external force, and the expansion joint is prevented from being damaged. The damage of sundries to the function of the expansion joint can be avoided, the service life of the expansion joint is prolonged, through the cooperation of a groove, a compression spring, a positioning block, a positioning groove, a toothed plate and teeth, the expansion joint structure adopts a damping noise reduction technology, such as the positioning block or the teeth of a comb tooth structure in a special shape, so that noise generated when a vehicle passes is reduced, and the service life of the expansion joint is prolonged. Through the design, noise can be effectively absorbed and dispersed, and the driving comfort is improved.
Owner:GUANGDONG DELI ROAD & BRIDGE EQUIP TECH CO LTD
Composite material prop with mortise and tenon structure and preparation method thereof
The application belongs to the technical field of bullet carriers and relates to a preparation method of a composite material bullet carrier with a mortise and tenon structure. The structure of the bullet carrier is divided into a tooth shaft part and a saddle part. The tooth shaft part and the saddle part are connected by means of a mortise and tenon structure and a gluing mode. The back of the tooth shaft part is pre-prepared with a tenon structure, and the layers of the tooth shaft part adopt radial layers. The saddle part has a mortise structure matched with the tenon structure, and the two parts are then cured. The structure designed in the application can improve the phenomenon that the integral molding material sheet is easily naturally bent due to the uneven material thickness and the unbalanced gravity under the action of external pressure, the spare position is generated in the product interior or the outer surface, and the local material sheet is bent. The component molding can greatly enlarge the anti-deformation advantage of the narrow material sheet, improve the structural strength requirements of the bullet carrier shaft body windward curved surface, pressure bearing curved surface and non-equal thickness structure area, and reduce the layering process difficulty.
Owner:BEIJING BEIFANG CHANGLONG NEW MATERIALS TECH CO LTD
Air duct volute and air conditioner
The air duct volute comprises a volute body and a backflow prevention structure, an air duct is arranged in the volute body, the volute body comprises a volute tongue protruding towards the air duct, a tooth groove structure is formed on the inner wall, facing the air duct, of the volute tongue, and the tooth groove structure comprises a plurality of tooth ribs arranged at intervals in the length direction of the volute body. Tooth grooves are defined between every two adjacent tooth ribs, and anti-backflow structures are arranged in at least part of the tooth grooves. According to the air duct volute disclosed by the embodiment of the utility model, on the basis that the tooth groove structure is arranged on the volute tongue to solve the problems of poor injection molding, deformation and the like of the air duct volute at the volute tongue part, the backflow prevention structures are arranged in at least part of the tooth grooves, so that the backflow prevention structures can block airflow flowing back along the tooth grooves; air flow flowing back along the tooth grooves is reduced, so that air output loss is reduced, air output is increased, and the performance of the air conditioner is improved.
Owner:GD MIDEA AIR CONDITIONING EQUIP CO LTD
Gear and method of manufacturing and mechanical device
The present application relates to the field of mechanical equipment manufacturing, and provides a gear, a manufacturing method of the gear and a mechanical equipment.The gear comprises a wheel base and a tooth surface structure, the wheel base has a mounting surface, and the tooth surface structure is arranged on the mounting surface; the mounting surface is provided with a first meshing tooth structure, one side of the tooth surface structure is provided with a second meshing tooth structure which is mutually meshed with the first meshing tooth structure, and the other side of the tooth surface structure is provided with a meshing tooth structure which is used for meshing with another gear; the material of the wheel base is an aluminum alloy material, and the material of the tooth surface structure is gear steel.The manufacturing method of the gear comprises the following steps: gear steel material is selected to manufacture the tooth surface structure; the tooth surface structure is placed in a mold of a spray deposition device, molten aluminum alloy liquid is sprayed on one side of the tooth surface structure where the second meshing tooth structure is located, and the aluminum alloy is deposited.The mechanical equipment comprises the above gear.The gear provided by the present application realizes weight reduction, and reduces the noise of a gear reduction system relative to the existing gear.
Owner:SUZHOU XINGBO POWER TECH CO LTD
Oral cavity fitting breathing tube
The utility model belongs to the technical field of respiratory apparatus, specifically relates to an oral cavity pasting formula breathing pipe, including the mutual connection of mouth bite device and pharyngeal cavity air duct, wherein, mouth bite device includes front end mouth, lip stop, tooth socket pipe and tooth stop, and front end mouth and lip stop are connected, and front end mouth and lip stop are connected, and lip stop is oval thin ring, and tooth stop is irregular oval ring, and lip stop and tooth stop are connected through tooth socket pipe, and tooth stop is arranged in the front end of pharyngeal cavity air duct, and front end mouth, tooth socket pipe and pharyngeal cavity air duct are all partial oval pipe body structure, and the front end surface of tooth stop, tooth socket pipe and the rear end surface of lip stop constitute tooth socket, and mouth bite device and pharyngeal cavity air duct are integrally formed.The utility model reduces even eliminates the symptom generation of lip part chapped, tongue front area mucous membrane dry and oral cavity ulcer, reduces the number of night awakening, alleviates snore frequency, improves sleep quality and daytime work efficiency, has the effective prevention of oral cavity pasting formula breathing pipe frequent drop out of the body, and can improve the comfort of wearing.
Owner:吴佳昊
Flexible lock catch ribbon structure for high-toughness polymer
The invention discloses a flexible lock catch ribbon structure for a high-toughness polymer, and relates to the technical field of plastic ribbons, the flexible lock catch ribbon structure comprises a ribbon body, the top of the ribbon body is provided with a plurality of tooth bodies through notches, the rear end of the ribbon body is provided with a transition section, the rear end of the transition section is provided with a head structure, the front end of the ribbon body is provided with a tail end, and the tail end is provided with a groove. An inserting hole is formed in the top of the head structure in a penetrating mode, an elastic piece structure is arranged in the inserting hole, the top of the tooth body is a tooth top of a flat top structure, the tooth top smoothly extends out of the surface of the belt body, and the bottom of the tooth body is a tooth root section. By arranging a series of structures, the elastic deformation capacity of the elastic piece is greatly improved, the rigid stress of the structure is reduced, good toughness is still kept in the low-temperature environment of-20 DEG C or below, the problems of low-temperature brittle failure of a traditional cable tie and fatigue cracking of the elastic piece are effectively solved, the locking stability and the anti-loosening capacity are remarkably improved, and the service life of the cable tie is prolonged. The service life is prolonged; and the use safety is improved.
Owner:HANGZHOU LEXIN NEW MATERIAL TECHNOLOGY CO LTD
18 PIN connector slot structure with high pin strength
The utility model discloses a 18PIN connector slot structure with high pin strength, characterized in that the front side of a first housing is provided with a jack, the bottom of the jack is provided with a tooth groove structure, the tooth groove structure comprises a plurality of tooth grooves, a second housing is provided with a plurality of assembling hole channels, each assembling hole channel is respectively aligned with each tooth groove in the front-back direction, and the assembling hole channels are respectively aligned with the tooth grooves in the front-back direction. Each assembly hole channel comprises a funnel part and a fastening part which are connected front and back, the funnel part is obliquely arranged upwards, a PIN is inserted into each assembly hole channel, each PIN comprises a first part and a second part, the first part is arranged in an arch bridge shape, the second part is arranged in a straight line, and the second part is inserted into the fastening part of the assembly hole channel; one side of the second part is inserted into the funnel part of the assembling hole channel, the other side of the second part is movably clamped and embedded into the corresponding tooth groove, the middle lower part of the funnel part is solidified by soft silica gel to form a first adhesive part, and the first adhesive part is elastically arranged. Compared with the prior art, the probability of damage to the pins caused by misoperation or repeated plugging is remarkably reduced.
Owner:DONGGUAN YANXUN ELECTRONIC TECH CO LTD
Split type tooth ring, tooth cap and cutting tooth structure
The invention relates to the technical field of tooth roller crushers, in particular to a split type tooth ring, tooth cap and cutting tooth structure. A split type tooth ring, tooth cap and cutting tooth structure comprises a crushing shaft and is characterized in that the crushing shaft is connected with a tooth ring through a key shaft, a main body of the tooth ring is of an annular structure, two or more sets of protruding structures are distributed on the periphery of the tooth ring, the protruding structures are connected with a plurality of tooth caps through fixing screw assemblies, and one side of the upper portion of each tooth cap is connected with a cutting tooth. Compared with the prior art, the split type tooth ring, tooth cap and cutting tooth structure is provided, the tooth ring, the tooth cap and the cutting tooth are designed in a split mode, and the structure is easy to detach and can be replaced regularly; a split structure is adopted, the front contact face of the gear ring and the gear cap is pressed by pretightening force, displacement is avoided in the crushing process, and the connection reliability is improved.
Owner:PANMA BULK MATERIAL HANDLING TECHNOLOGY (BEIJING) CO LTD
Belt pulley structure
The utility model discloses a belt pulley structure which comprises a tooth groove piece and a belt pulley body, the tooth groove piece is of a hollow columnar structure, a first tooth portion is arranged on the inner side of the tooth groove piece, the outer side of the tooth groove piece comprises a thick end and a thin end, and the diameter of the thick end is larger than that of the thin end so that a first step can be formed at the connecting position of the thick end and the thin end. The thick end is provided with a second tooth portion, the thin end is provided with a third tooth portion, the tooth groove piece is made of metal materials, the belt wheel body is formed on the periphery of the tooth groove piece in a casting mode through BMC materials, and a fourth tooth portion meshed with the second tooth portion and a fifth tooth portion meshed with the third tooth portion are formed. Under the condition that the weight and the manufacturing cost are reduced, the mechanical strength is ensured, the mechanical performance requirement of the belt pulley is met, the abrasion and slipping conditions are reduced, the overall rigidity is high, and the belt pulley is not prone to being pressed and deformed.
Owner:JINLING ELECTRICAL CO LTD
Metal insert for plastic pipe fitting and plastic pipe fitting
The utility model discloses a metal insert for a plastic pipe fitting and the plastic pipe fitting, and relates to the technical field of pipeline connecting pieces. Comprising an insert body, the outer surface of the insert body comprises convex parts and concave parts which are alternately arranged, the convex parts are of tooth structures, and the extension direction of the tooth structures intersects with the extension direction of the concave parts; a connecting part is arranged on the inner wall face of the insert body. The alternately arranged convex and concave structures can increase the connection tightness between the plastic pipe fitting and the metal insert, and meanwhile, the tooth structures of the convex parts intersect with the extension direction of the concave parts, so that the positions of the metal insert and the plastic pipe fitting can be fixed from different directions, and the metal insert and the plastic pipe fitting are prevented from generating relative movement and / or relative rotation. The metal insert can directly adopt the metal substrate with the tooth structure, the concave part is machined on the outer surface of the metal insert through turning, and the connecting part is machined on the inner surface of the metal insert, so that the machining difficulty is obviously reduced.
Owner:RIFENG ENTERPRISE FOSHAN CO LTD +2
Accurate reset stopping mechanism of gear twisted tooth structure of plastic mold
The utility model relates to an accurate stopping and resetting mechanism of a gear twisted tooth structure of a plastic mould, which comprises a motor, a gear transmission structure connected with the motor and a tooth core extending structure connected with the gear transmission structure, the gear transmission structure comprises a first gear transmission assembly and a second gear transmission assembly, and the second gear assembly at least comprises a second gear. A second gear limiting structure is arranged on the periphery of the second gear, and the tooth core extending structure comprises a tooth core sleeve and a third gear arranged on the side wall of the tooth core sleeve. By means of the device, the problems that when a servo motor controls the extending and retracting distance of the tooth core, precise control over the extending and retracting distance of the tooth core cannot be achieved due to the influence of gear transmission matching precision, and cost is high are solved. Moreover, the second gear stop block is limited through the second gear limiting structure, the rotation angle of the second gear is controlled, the extending and retracting distance of the tooth core is further controlled, and therefore the tooth core is only parallel to one end of the ejector rod head of the ejector rod assembly when extending out, and the situation that the product is damaged due to protruding is avoided.
Owner:KUNSHAN MUBANG PRECISION MOLD TECHNOLOGY CO LTD
Heat exchange tube, heat exchanger and air conditioner
The utility model discloses a heat exchange tube, heat exchanger and air conditioner, heat exchange tube includes: tube body, the inner circumferential wall of tube body is provided with tooth structure along the length direction of tube body spiral extension, the tooth structure is provided with a plurality of at intervals along the circumferential direction of tube body, the ratio of tooth number of tooth structure to tooth height of tooth structure is 1000-2000, the outer diameter of the pipe body ranges from 3 mm to 4.5 mm. According to the heat exchange tube, the tooth structures spirally extending in the length direction of the tube body are arranged on the inner circumferential wall of the tube body, the tooth structures are arranged at intervals in the circumferential direction of the tube body, and the ratio of the tooth number of the tooth structures to the tooth height of the tooth structures is 1000-2000 for the heat exchange tube with the outer diameter of the tube body being 3-4.5 mm. The pressure drop of the heat exchange tube can be reduced, the flow path can be simplified under the condition that the heat exchange performance is not changed, and the complexity of the manufacturing process is reduced.
Owner:MIDEA GROUP CO LTD +1
Discontinuous tooth-shaped structure quenching process, quenching device and discontinuous tooth-shaped structure gear
The invention relates to the technical field of double-section tooth induction quenching processes, in particular to a quenching process and a quenching device for a discontinuous tooth-shaped structure and a discontinuous tooth-shaped structure gear. Firstly, the closing position of a spraying device is preset according to the tooth width of a section of tooth of the discontinuous tooth-shaped structure to be machined; then, the inductor carries out quenching machining on the tooth groove from the end, away from the second-section tooth, of the first-section tooth under the first condition, meanwhile, the spraying device continuously sprays tooth crests at the two ends of the tooth groove, when the inductor moves to the closing position, the spraying device is closed, and the inductor continuously carries out quenching machining on the tooth groove of the second-section tooth under the second condition; and until the inductor completely moves to the outside of the end, away from the first-section tooth, of the second-section tooth, a hardening layer is continuous in the continuous induction quenching process of the discontinuous tooth-shaped structure, the adjacent tooth surface of the first-section tooth at the joint of the two-section tooth cannot be tempered, and the tooth surface hardness is high.
Owner:CRRC QISHUYAN INSTITUTE CO LTD
Bucket tooth mounting structure
Owner:JIANGXI HOLD CASTING CO LTD
Straight chain type integrated extension socket framework structure
ActiveCN224154030UImprove power densityIncrease slot fill rateMagnetic circuit stationary partsElectric machineryStructure tooth
The utility model relates to the technical field of motors, in particular to a straight chain type integrated extension socket framework structure, which comprises tooth-shaped units in chain type connection, each tooth-shaped unit is T-shaped, a framework unit is mounted on each tooth-shaped unit, and each framework unit is provided with a first branch part and a second branch part. The first branch part and the second branch part can be fixedly connected with the whole tooth-shaped unit in chain connection at the same time, the tooth-shaped unit is of a T-shaped structure, the framework is connected to the tooth-shaped unit, the framework is of a split structure and is provided with the first branch part and the second branch part, the first branch part can be connected with the whole tooth-shaped unit at the same time, and the second branch part can be connected with the whole tooth-shaped unit at the same time. In addition, the second part can be connected with the whole tooth-shaped unit at the same time, that is, installation of all framework units on the tooth-shaped unit can be completed only by spending time for installing one framework in advance, the installation efficiency is improved, then the slot fullness rate of the motor is improved, the power density of the motor is improved, and resistance and loss are reduced.
Owner:江苏世珂电机有限公司
A scroll machinery stepped variable tooth high scroll slideway sealing structure
ActiveCN119778271BInternal combustion piston enginesSealing arrangement for pumpsRooted toothMechanical engineering
The application discloses a stepped variable tooth height scroll slide sealing structure of a scroll machine, which comprises a tooth top sealing structure and a tooth root slide structure, the profile of the tooth top sealing structure is composed of a head circular arc, a distal curve, a proximal curve and a tail curve, and the profile of the tooth root slide structure is composed of an upper stop curve, a lower stop curve, an inner curve and an outer curve; the profile of the tooth top sealing structure is controlled by a sealing structure width, and the minimum wall thickness requirement is met; the tooth top sealing groove is determined by the profile of the tooth top sealing structure and extension lines EM and FN of the profile; the upper and lower stop points of the profile of the tooth root slide structure are controlled by the profile of a scroll body, a wall thickness and a sealing structure width, the inner and outer curves are controlled by the distance between line segments E'M and F'N and point O0 and the sealing structure width, and points E' and F' form a tooth top small circular arc stepped curve E'F'; O0 is the center of the head circular arc of the tooth top sealing structure and also the center of the tooth top circular arc stepped curve. The application can realize the meshing sealing of large and small circular arcs in an arbitrary angle period.
Owner:XI AN JIAOTONG UNIV
Synchronous belt for electric power-assisted bicycle
The utility model discloses a synchronous belt for an electric power-assisted bicycle. Comprising a tooth cloth layer, a belt body, cords and a back cloth layer, the belt body comprises a tooth rubber layer and a back rubber layer, the tooth rubber layer and the back rubber layer are connected into a whole, a rope penetrates through the back rubber layer, a back cloth layer is arranged on the outer surface of the back rubber layer, the tooth rubber layer is of a tooth-shaped structure, the tooth-shaped structure is matched with belt wheel teeth, and a tooth cloth layer is arranged on the outer surface of the tooth rubber layer. The tooth cloth layer is formed by blending aramid fibers and nylon 66; a positioning groove is formed in the tooth bottom of the tooth-shaped structure of the tooth rubber layer, and the positioning groove is matched with a protruding structure on the belt wheel teeth. Due to the arrangement of the tooth cloth layer formed by blending the aramid fibers and the nylon 66, the abrasion resistance of the tooth surface of the synchronous belt is greatly improved. By means of the positioning grooves evenly formed in the tooth-shaped structure of the tooth rubber layer, the synchronous belt can be positioned when the synchronous belt is in transmission with the belt wheel, and deviation and tooth skipping of the synchronous belt are prevented.
Owner:WUXI BEIERTE ADHESIVE TAPE CO LTD