45 results about "Structure tooth" patented technology

Provided is a herringbone planetary gear transmission device with a constant meshing characteristics constructed tooth pair, which relates to the technical field of gear transmission. The transmission device includes a sun gear with a constructed tooth pair, a planetary gear with a constructed tooth pair and an internal gear with a constructed tooth pair based on conjugate curves. Normal tooth profiles of the gears with a constructed tooth pair in the present disclosure are all the same combined curve and can be machined by using the same cutter. A common normal at an inflection point or a tangent point of the curve passes through a pitch point of a meshing gear pair, and a sliding ratio of the meshing gear pair is adjusted according to an adjusted position of the inflection point or the tangent point. A contact ratio of the meshing gear pair is designed as an integer.

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.

Provided is an external meshing cylindrical gear pair with a constant meshing characteristics constructed tooth pair. The external meshing cylindrical gear pair with a constructed tooth pair includes a cylindrical gear I with a constructed tooth pair and a cylindrical gear II with a constructed tooth pair based on conjugate curves. In the present disclosure, normal tooth profile curves of the cylindrical gear I with a constructed tooth pair and the cylindrical gear II with a constructed tooth pair are continuous combined curves with the same curve shape, which facilitates machining by the same cutter. A common normal at an inflection point or a tangent point of the continuous combined curve passes through a pitch point of the gear pair, and a position of the inflection point or the tangent point can be adjusted according to an actual demand. A contact ratio is designed as an integer.

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.

The present invention discloses a method for processing a slider groove of a synchronizer gear sleeve, wherein the inner wall of the synchronizer gear sleeve is provided with a plurality of normal teeth and parallel teeth, and the method for processing the slider groove of the synchronizer gear sleeve comprises the following steps: obtaining the position of the parallel teeth; selecting the normal teeth beside the parallel teeth as the target teeth according to the position of the parallel teeth; taking the target teeth as the starting cutting position, cutting the inner wall surface of the synchronizer gear sleeve with preset cutting parameters to form a slider groove; wherein the preset cutting parameters include preset tool running trajectory parameters. The processing method provided by the present invention can realize continuous cutting processing of the slider groove of a gear sleeve with complex structure, and has high processing efficiency and high processing precision, and meets the processing technology requirements.

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.

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.

The utility model relates to the technical field of transmission structures, in particular to a gear and gear ring structure. The gear comprises an outer gear ring and a connecting disc, the connecting disc is used for being connected with the driving shaft, an annular flange is arranged on the inner circumferential side of the outer gear ring, and the connecting disc is connected with the annular flange through a first fastener and a second fastener; the first fastener is hollow, a cavity and the peripheral side of the first fastener are provided with an internal thread and an external thread respectively, the first fastener is connected with the second fastener through the external thread, and the second fastener is connected with the internal thread of the first fastener, so that the annular flange and the connecting disc are locked and fixed. The gear is changed from an integral type to a split type, so that when the teeth of the gear are abraded, only the part with the teeth is replaced, the replacement cost is reduced, specifically, the through hole is formed in the middle of the outer gear ring, so that the outer gear ring is used as a consumable part, only the outer gear ring needs to be replaced during replacement, and the maintenance cost is greatly reduced.

The utility model relates to the technical field of fishing gears, and discloses a force unloading sounding alarm device of a fishing reel, which comprises a helical fluted disc, sounding teeth and a trigger ring, a plurality of tooth-shaped structures are arranged on the inner ring of the sounding teeth, the tooth-shaped structures are integrally acute triangles, one surface, close to the center of the sounding teeth, of each tooth-shaped structure is an inclined surface, and the slope of each inclined surface is slow. The triggering ring is sleeved with the oblique fluted disc, a sound production assembly is arranged in the triggering ring, a springback groove is formed in the outer wall of the sound production assembly, a spring is movably sleeved with the springback groove, an ejector pin is slidably inserted into the springback groove, one end of the ejector pin is of an inclined face structure, and the inclined face of one end of the ejector pin is matched with the inclined face of the tooth-shaped structure and makes a sound. The inclined plane at one end of the ejector pin is matched with the inclined plane of the tooth-shaped structure and makes a sound, so that the ejector pin can move along the inclined plane of the tooth-shaped structure when the ejector pin transversely deflects, the ejection pressure of the ejector pin on the tooth-shaped structure is reduced, the abrasion of the tooth-shaped structure is reduced, and the service life of the device is prolonged.

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.

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.

According to the engine arc end-toothed disc tooth surface topology modification method and system provided by the invention, an arc end tooth difference surface is constructed through a convex tooth and concave tooth meshing model of an arc end-toothed disc and a preset tooth surface error, the geometric parameters of the tooth surface are correspondingly obtained, the mismatch amount between discrete points of the tooth surface is calculated according to the geometric parameters, and the tooth surface topology modification method is realized. The tooth surface topology and tooth surface theoretical machining parameters after topology modification are correspondingly obtained; the theoretical machining parameters are adjusted to enable the tooth surface topology to approach the preset tooth surface error, the tooth surface theoretical machining parameters are reversely adjusted to compensate the tooth surface error, actual machining parameters are obtained according to a preset optimization algorithm, and then tooth surface topology modification is achieved. The method and the system can effectively solve the problems of edge contact and stress concentration of the tooth surface of the arc end-toothed disc structure of the aero-engine, and improve the machining efficiency of the tooth surface of the arc end-toothed disc of the engine.

The invention relates to a cylindrical surface gas film sealing structure of a tooth-shaped pressurizing groove. The cylindrical surface air film sealing structure of the tooth-shaped pressurization groove comprises a rear end cover and a front end cover which are arranged on a floating ring and a movable ring in a sleeving mode. The tooth-shaped pressurizing grooves are circumferentially arrayed in the peripheral surface of the movable ring at equal intervals, and each tooth-shaped pressurizing groove comprises a tooth-free feature groove area a and a tooth-shaped feature groove area b. Compared with a traditional linear groove design, the tooth-shaped pressurizing grooves are formed in the peripheral surface of the movable ring at equal intervals in the circumferential array mode, tooth-shaped feature groove areas b of the tooth-shaped pressurizing grooves are provided with tooth-shaped structures protruding towards the interiors of the grooves, and the tooth-shaped structures form contraction type channels in the gas flowing direction; when gas flows into the tooth-shaped characteristic groove area b through the tooth-shaped characteristic groove area a, the sectional area of a flowing channel of the tooth-shaped characteristic groove area b is reduced in the gas flowing direction, so that the hydrodynamic effect is enhanced, the buoyancy force of a gas film is improved, the supporting effect on a floating ring is improved, the stability of the gas film is enhanced, the leakage rate is reduced, and the sealing performance is improved.

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.

The utility model discloses a heat exchange tube, heat exchanger and air conditioner, the 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 909-2100, the outer diameter of the pipe body ranges from 8.8 mm to 9.8 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 909-2100 for the heat exchange tube with the outer diameter of the tube body being 8.8 mm-9. 8 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.

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.

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.

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.

The invention relates to the technical field of wind power mixed towers, in particular to a duct piece structure capable of improving the deficiency of structural adhesive in a horizontal seam of a wind power mixed tower, the top and the bottom of a duct piece are provided with tooth-shaped structures in the thickness direction of the duct piece, and tooth grooves of the tooth-shaped structures are used for being filled with the structural adhesive; the tooth-shaped structures at the bottoms of the segments on the upper layer are matched with the tooth-shaped structures at the tops of the segments on the lower layer and are fixedly connected through structural adhesives. According to the invention, the filling structural adhesive can be compactly filled in the horizontal seam, and the void phenomenon is reduced.

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.

A stator assembly (400) of a linear motor, a linear motor, a suspension apparatus (500), and a vehicle. The stator assembly (400) comprises multiple layers of stator cores (200), the multiple layers of stator cores (200) being sequentially stacked along the axial direction of the stator assembly (400); each stator core (200) comprises a stator body (204) and tooth crown structures (30), wherein the tooth crown structures (30) are disposed on the outer peripheral wall of the stator body (204), and the tooth crown structures (30) and the stator body (204) jointly define a recess structure (206) used for mounting a winding coil (300).

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.

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.

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.

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.

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.

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.

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.

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.