43 results about "GRINDING TOOTH" patented technology

The utility model relates to the technical field of flour mills, and discloses a hammer type flour mill which comprises a machine body, a flour milling chamber and a collecting chamber are arranged in the machine body, a discharging port is arranged between the flour milling chamber and the collecting chamber in a communicating mode, a plurality of milling teeth are arranged on the inner wall of the flour milling chamber in an array mode, a rotating shaft is arranged in the flour milling chamber in a rotating mode, and a motor is fixedly arranged on the outer wall of the machine body and connected with one end of the rotating shaft. Each hammering assembly comprises a plurality of sleeves fixedly arranged on the rotating shaft, hammer rods are slidably inserted into the sleeves, sliding plates are arranged at the ends, located in the sleeves, of the hammer rods, hammer heads are fixedly arranged at the other ends of the hammer rods, a plurality of positioning holes are formed in the sleeves in an up-and-down symmetrical mode, and positioning grooves are formed in the sliding plates. The sliding plate penetrates through the positioning hole through a fixing bolt and is inserted into the positioning groove to be fixedly connected with the sleeve. The hammer rod can be adjusted in the sleeve in a sliding mode, so that the distance between the hammer head and the grinding teeth is changed, the device can adapt to material grinding under different hardness and humidity conditions, and the grinding efficiency is improved.

The utility model belongs to the technical field of diamond grinding wheels, and particularly relates to a diamond grinding wheel for grinding a lead screw. The grinding wheel comprises a base body and a grinding layer. Wherein the grinding layer comprises grinding teeth, a first grinding groove and a second grinding groove; the first grinding groove and the second grinding groove are symmetrically formed in the two sides of the grinding teeth and are in smooth connection with the grinding teeth. According to the diamond grinding wheel for grinding the lead screw, the thread groove grinding part and the thread body grinding part are arranged on the grinding wheel at the same time, continuous thread grooves and thread body segments on the lead screw can be ground, and the grinding wheel is matched with translation of the grinding wheel and rotation of the lead screw and the grinding wheel; and grinding machining of all parts on the spiral groove of the lead screw can be completed at the same time.

The invention relates to a tooth groove grinding clamp for high-load connecting rod tooth groove precision machining and a machining method of the tooth groove grinding clamp. The tooth groove grinding clamp used for high-load connecting rod tooth groove precision machining comprises a bottom plate used for supporting and fixing the tooth groove grinding clamp, and the bottom plate fixes the tooth groove grinding clamp to a machine tool for grinding through bolts and nuts; the vertical plate is vertically and upwards arranged on the bottom plate; the connecting rod body fixing assembly is arranged on one side face of the vertical plate and used for fixing a connecting rod body to be machined; the connecting rod cover fixing assembly is arranged on the other side face, opposite to the connecting rod body fixing assembly, of the vertical plate and used for fixing a connecting rod cover to be machined, and when the connecting rod body to be machined and the connecting rod cover are positioned, the connecting rod body to be machined and the connecting rod cover are staggered by one half of the tooth pitch. According to the tooth groove grinding clamp for high-load connecting rod tooth groove precision machining, a connecting rod body and a connecting rod cover are clamped for tooth grinding machining, tooth grooves of the connecting rod body and the cover can be ground at the same time, and it is guaranteed that the tooth shapes of the connecting rod body and the cover are consistent.

The utility model discloses a white corundum lump material crushing and shaping all-in-one machine, which relates to the technical field of white corundum lump material processing and comprises a grinding machine, a crushing cavity is arranged above the grinding machine, two crushing rollers for crushing white corundum lump materials are arranged in the crushing cavity, and grinding teeth and two grinding rollers are arranged in the grinding machine. The two crushing rollers are driven by the driving mechanism to rotate, raw materials can be crushed in the relative rotation process of the two crushing rollers, at the moment, a fixed screw rod is driven to rotate by rotating a grip, and two check blocks connected to the screw rod in a sleeving mode move oppositely under the action of threads in the rotation process of the screw rod; at the moment, the size of the crushed raw material discharging opening can be adjusted, it can be guaranteed that the raw materials evenly and continuously enter the grinding machine through the proper size of the discharging opening, blockage and influence on the production schedule caused by too fast discharging are prevented, and the phenomenon that the device idles and wastes energy and time due to too slow discharging can also be avoided.

The utility model relates to the field of pulper, concretely relates to a grinding disc structure based on papermaking pulper, including main part and grinding disc part, is seted up with the mounting buckle groove on the main part, is seted up with the mounting hole on the grinding disc part, is provided with the buckle part at the mounting hole, the grinding disc part is detachable and is arranged on the main part through the buckle part and the mounting buckle groove cooperation, the grinding disc part still includes the grinding plate and the grinding tooth, the grinding plate is the sector plate, the grinding tooth is integrally arranged on the grinding plate upper surface, the utility model discloses the combination of modularization grinding disc part and buckle part has realized quick dismounting, only needs to replace the damaged grinding plate when damaging, does not need to replace the whole grinding disc, has reduced maintenance cost and time, the detachable characteristic is convenient for inspection, cleaning, improves maintenance efficiency, reduces downtime, improves production efficiency, especially suitable for the papermaking production line of continuous operation.

This utility model discloses a sorting device for processing calcium fluoride tailings, belonging to the field of mineral processing equipment. It includes a tank with a conical protrusion on its inner wall, on which coarse grinding teeth are provided. Grinding and screening components are respectively arranged inside the tank from top to bottom. A drive unit is located between the grinding and screening components. The grinding component, in cooperation with the first coarse grinding teeth, is used to coarsely grind the calcium fluoride tailings. The grinding component provides power to the drive unit to cause the screening component to vibrate. The grinding component includes a support set on the inner wall of the tank; a rotating frame rotatably set at the bottom of the support; a second coarse grinding tooth sleeved on the outer wall of the rotating frame; and a servo motor set inside the support with its output end connected to the top of the rotating frame. This utility model's sorting device for processing calcium fluoride tailings improves the coarse grinding and screening effects and optimizes the sorting process through the innovative cooperation between the grinding and screening components, especially the drive unit utilizing the grinding power to drive the screening vibration.

The utility model discloses peeling equipment for an aluminum profile casting rod, and belongs to the field of aluminum profile processing. According to the technical scheme, the peeling equipment for the aluminum profile casting rod is divided into a peeling machine body and a grinding pipe body, and the grinding pipe body is arranged at the output end of the peeling machine body in a matched mode; according to the aluminum profile peeling device, an aluminum profile peeling structure is optimized, a beam tube clamping groove and a position correction part are arranged at the front end, the overall limiting precision and the fixing capacity in the aluminum profile machining process are achieved, and therefore the comprehensive quality in the aluminum profile peeling process is further improved; and meanwhile, the structure of the peeling part is optimized, the surface of the aluminum profile is subjected to peeling treatment in a transverse tooth grinding mode, the error-tolerant rate in the surface treatment process of the aluminum profile is increased, and the actual production loss is further reduced.

The utility model discloses a tobacco grinding device, and belongs to the technical field of tobacco processing equipment. The tobacco grinding device comprises a rotatable upper cover and a tank body with a through inner cavity, detachable connection of rotary grinding teeth is achieved through a lateral sliding lock catch structure, and the grinding teeth are installed and fixed through an axial restraining structure on the inner wall of the tank body. A modular connection mode of combining the dovetail grooves and the magnetic suction units is adopted, so that quick replacement of the grinding teeth is realized; grinding teeth are fixed through cooperation of a limiting ring and an internal thread, and the dismounting operation is simplified in combination with the design of a turnover pull ring; and the standardized grinding tooth interface supports multi-specification tooth profile configuration. The utility model solves the problems that the traditional integrated tobacco grinder cannot independently replace accessories and has single grinding granularity.

The utility model discloses a high-precision grinding structure for solder paste production, which comprises a grinding machine body, a circular groove is arranged at the upper end of the center of the grinding machine body, an annular grinding cylinder is inserted in the circular groove, and a plurality of conical grinding teeth are fixedly mounted on the annular inner wall of the annular grinding cylinder. The annular grinding cylinder is inserted into the circular groove, the hydraulic cylinder drives the circular cover to cover the lower end of the annular grinding cylinder, the driving motor drives the spiral stirring rod to continuously turn over solder paste particles in the annular grinding cylinder, the solder paste particles fully collide with the conical grinding teeth in the annular grinding cylinder to be ground, and the grinding effect is improved; the circular cover is driven by the hydraulic cylinder to be separated from the annular grinding cylinder, the annular grinding cylinder is taken out through the handle, the circular cover is driven by the driving motor to rotate, grinding solder paste particles are rapidly discharged to the conical bottom of the circular groove and rapidly discharged through the inclined discharging opening, rapid discharging is facilitated, and the grinding efficiency is improved.

1. The name of the design product: tooth gel (snowman Christmas tree set). 2. The use of the design product: for grinding teeth, tooth gel toys. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

The invention discloses a tooth grinding device for production of a TA coating saw blade, and relates to the technical field of deep machining of cutting blades, the tooth grinding device comprises a base, a driving mechanism mounted at the top of the base and a tooth grinding mechanism mounted at the top of the base, and further comprises a pressing mechanism used for pressing the saw blade in the tooth grinding process; the cooling mechanism is used for cooling the saw blade in the tooth grinding process; the metal separation mechanism is used for removing metal scraps in the cooling liquid at the top of the saw blade; the stripping mechanism is used for removing the metal chippings on the metal separation mechanism at a set position; and the electromagnet disc on the outer side of the pressing block is driven to rotate, metal particles in cooling liquid at the top of the saw blade are rapidly adsorbed, the situation that the metal particles exist at the top of the saw blade is avoided, and the problem that in the grinding process of the next tooth groove, the metal particles in the cooling liquid at the top of the saw blade continuously flow into the tooth groove, and the grinding quality of the saw blade is affected is further avoided.

A cavity is made of superfine silicon carbide powder through a high-density and high-strength grouting method mold, is in a hollow square pipe shape, a square flat plate shape or a round flat plate shape and is free of air holes, the R angle is small, and the impact resistance of the handheld ceramic grinder is superior to that of a product manufactured through an extrusion method; the surface of the steel bar is a milled / knurled tooth-shaped surface, the steel bar is fixed at the top of the inner wall of the cavity through strong epoxy series glue, the bottom of the steel bar and the inner wall of the cavity form a cavity for emery to flow, and the neodymium-iron-boron permanent magnets are fixed at the two ends of the cavity in an inlaying and glue combined mode; a handheld handle guide sleeve and a sand inlet through hole between two handheld handle holes are arranged at the top of the cavity, a detachable conical sand funnel can be sleeved, a sand outlet hole is formed in the middle of a bottom grinding tooth pattern, and the tooth surface of the grinder is a 1-75-degree double-phase crossed reticulate pattern or a waveform curve pattern.

The utility model discloses a raw material grinding device for cosmetic processing, including shell, grinding block, grinding tooth, drive assembly, crushing blade and transmission assembly, put raw material into the crushing cavity, the drive assembly that sets up drives and connects the crushing blade and grinding block rotation, and the crushing blade rotates and preliminarily crushes the raw material in the crushing cavity, and the raw material that passes primary crushing will fall into the grinding cavity at the bottom, and the grinding block that sets up rotates and further grinds and crushes the raw material in the grinding cavity, so that the raw material is further ground and refined, the drive assembly will drive the transmission assembly to run in this process, and the transmission assembly drives the reciprocating rolling of the rolling cylinder, and the rolling barrel further rolls and refines the raw material falling in the rolling cavity, so that the raw material grinding and crushing are more thorough, and the raw material that passes grinding and rolling and crushing thoroughly will fall into the collecting cavity set at the bottom through the sieve hole, facilitating subsequent centralized collection and processing.

The utility model discloses a high-speed metal ceramic reamer, which relates to the technical field of metal processing tools and comprises a drill body, a conical cutter body and an equal-ratio scaling punching structure. The top end of the drill body is connected with a drilling machine through a connecting pin, and the bottom cutter body is provided with a spine end and cutting teeth for gradually reaming; three groups of punching structures which are reduced in an equal ratio in the axial direction are mounted on the peripheral side of the cutter body, and each group comprises a cylindrical punching head, bottom end teeth and peripheral side polishing teeth. The punching head is matched with the conical surface of the cutter body through the wedging groove, fixed-diameter punching is achieved through the teeth, and hole walls are synchronously polished through the grinding teeth. The three punching structures can be scaled and replaced at equal ratio, dynamic aperture adjustment is supported, and the problems that a traditional tool is low in efficiency and poor in precision are solved.

The present application relates to a kind of manufacturing method of band saw blade, the thickness direction of raw material steel band 2 edges are respectively carried out edge treatment, obtain the steel band with 2 straight angle edges;After the steel band is sequentially leveled and straightened, tooth is milled, and the strip with tooth support is formed;After the strip is sequentially heat treated and roll straightening, it is welded, and the band saw blade rough cast is obtained;After the band saw blade rough cast is sequentially rolled and ground, the band saw blade finished product is obtained;Or, after the band saw blade rough cast is sequentially ground and rolled, the band saw blade finished product is obtained;Wherein, roll processing includes the step of at least one region between the tooth groove and the bottom edge of the band saw blade rough cast is rolled;The region extends along the length direction of the band saw blade rough cast, and the width of the region is less than the distance between the tooth groove and the bottom edge of the band saw blade rough cast.The present application can effectively enhance the rigidity of the back material of the band saw blade by rolling the partial region of the back material of the band saw blade, which helps to improve the service life of the band saw blade.

The invention relates to the technical field of clamps, in particular to a rack grinding clamp which comprises a base, a positioning structure, a calibration structure, a rack body, a tooth aligning structure, a quick release structure and a supporting structure. And a clamping structure. The positioning structure is used in cooperation with the calibration structure, rack bodies of different lengths can be conveniently adapted, the positioning effect on the rack bodies is achieved, meanwhile, the initial tooth alignment position precision of tooth grooves in the rack bodies is ensured, the tooth alignment structure is used in cooperation with the quick release structure, the machining tolerance of the tooth grooves in the rack bodies and the end face can be automatically offset, and the machining precision is improved. The tooth grooves in the multiple rack bodies are accurately aligned, meanwhile, the tooth aligning assembly can be rapidly moved out of a tooth grinding area and is prevented from blocking operation of a grinding wheel, the supporting structure is used in cooperation with the clamping structure, the rack bodies of different widths and numbers can be flexibly matched, the rack bodies are evenly stressed, the clamping stability is improved, and the rack bodies are prevented from moving in the tooth grinding process; the processing stability is ensured.

The invention belongs to the technical field of cutting tools, and particularly relates to a hobbing tool which comprises a wheel ring and teeth, 3-18 teeth are evenly distributed on the outer side of the wheel ring in the axial direction, and the teeth incline by 1-30 degrees along the axis; cutting teeth are arranged on one sides of the teeth, grinding teeth are arranged on the other sides of the teeth, grooves for cutting are formed between the sawteeth, the grooves are arc-shaped or square, 1-20 grooves are distributed on the same tooth side by side, the grooves can cut and form a plate, a plurality of bamboo canes can be cut at a time, and therefore the cutting number in unit time can be increased; and after cutting, the grinding teeth on the other sides of the teeth grind the cutting end face, cutting and grinding machining operation is completed synchronously, the cutting efficiency is further improved, and therefore the yield can be increased.

The utility model discloses a ceramic grinding disc with an asymmetric structure, which comprises an upper grinding disc and a lower grinding disc, the upper grinding disc comprises a middle feeding area, an upper protruding fixing area and an inner grinding area, the grinding area comprises seven grinding units distributed in the radial direction, each grinding unit comprises grinding teeth distributed in a linear mode, and the grinding teeth are arranged in the middle of the upper grinding disc. The section of each grinding tooth is rectangular, the lower grinding disc area comprises a middle rotating shaft mounting area and an inner grinding area, the grinding area comprises seven grinding units distributed in the radial direction, each grinding unit comprises grinding teeth distributed in the linear direction, and the section of each grinding tooth is rectangular; according to the ceramic grinding disc of the asymmetric structure, stress concentration of the ceramic grinding disc in the grinding process can be greatly reduced, and therefore the cracking risk is reduced.

The invention discloses a grinding cutterhead and a preparation method thereof, a grinding device and beverage brewing equipment. The grinding cutterhead comprises a base, a grinding tooth group and a spur group. Materials are punctured and broken by the stabbing groups to form coarse particles, and the coarse particles enter the grinding gap from the inner peripheries of the two cutter heads and then are further cut and ground by the grinding tooth groups, so that the temperature rise degree of the materials in the grinding process is reduced, the grinding efficiency is improved, the original flavor of the materials can be more kept, and the taste of drinks is improved. The preparation method of the grinding cutterhead comprises the following steps: adding ethanol into aluminum oxide powder, grinding, mixing, drying and sieving to obtain first powder; the first powder and a binder are mixed, mixed and granulated, and injection molding feed is obtained; carrying out injection molding on the injection molding feed to obtain a ceramic green body; degreasing the injection-molded ceramic body to obtain a ceramic blank; and sintering the ceramic blank at a first preset temperature, and machining to form a finished ceramic cutter.

A tree stump grinding tooth includes a front side, rear side, outer side, inner side, top side, and bottom side. The outer side includes a neck portion that is substantially covered by an elongate cutting bit. The front side of the tree stump grinding tooth includes an arcuate beveled edge that is wider at the bottom side as compared to the top side when viewed from an outer side elevation. The inner side of the tree stump grinding tooth includes a substantially planar section. A portion of the elongate cutting bit that is distal to the top side is angled relative to the face of the elongate cutting face. Both an outer side and an inner side of the neck portion are tapered. Tungsten carbide grit is applied to portion of the top side, a portion of the front side and a portion of the outer side.

The utility model relates to coffee machine and food processing device technical field, especially coffee machine and food processing device, food processing device's grinding structure, food processing device's feed structure, food processing device's adjusting structure. The adjusting structure of food processing device of the utility model, it includes processing component, processing component includes grinding assembly, spacing cover and has the driving rod of rotary power, grinding assembly includes grinding outer ring and the grinding body in the grinding outer ring, and the inside wall of grinding outer ring and / or the outside wall of grinding body is provided with grinding tooth, grinding outer ring is opposite spacing cover fixed, grinding body is drivenly connected with the driving rod, and grinding body can move along the driving rod, make the clearance between grinding body, grinding outer ring change. The utility model can adjust the granularity of coffee bean and other food raw materials grinding according to the need.

The application discloses a tooth-shaped bionic indexable blade and belongs to the technical field of cutting tools. The bionic indexable blade comprises a tool rake face, a tool relief face and a cutting edge at the joint position of the tool rake face and the tool relief face. The curve characteristics of the cutting edge are taken from the cross-section curve of the tooth for biting and breaking food of human teeth. The tool rake face is provided with a chip breaker groove near the cutting edge. The curve characteristics of the chip breaker groove are taken from the cross-section curve of the tooth for grinding food of human teeth, which is used for chip breaking and chip removal. A boss is arranged behind the chip breaker groove of the tool rake face, which is convenient for clamping and assisting chip breaking and can increase the strength of the clamping position of the tool. A through hole is arranged at the central position of the tool rake face and the boss, which is used for fixing and clamping the blade. The application takes the tooth of human teeth as a bionic object through the bionics principle. The cross-section curve of the tooth for biting and breaking hard objects is taken as the cutting edge of the tool. The cross-section curve of the tooth side for grinding is taken as the chip breaker groove of the tool. The application combines the bionics and the curve cutting edge technology in modern cutting technology, aims to reduce the cutting force and cutting heat in the cutting process, reduce the peak value of the impact load, reduce the machining vibration, enhance the chip breaking capacity of the tool, improve the surface quality of the workpiece, enhance the machining safety and better meet the machining needs.

1. Name of the designed product: tooth grinder. 2. Use of the designed product: the designed product is used for grinding teeth. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The utility model discloses a bearing roller grinding device, and particularly relates to the technical field of bearing rollers, the bearing roller grinding device comprises a lower grinding disc provided with an accommodating groove, a left turning plate and a right turning plate which are oppositely arranged in the accommodating groove and are hinged, and a feeding channel with an adjustable angle is formed between two adjacent surfaces of the left turning plate and the right turning plate; the feeding wheels are rotationally arranged on the adjacent faces, a plurality of grinding teeth are arranged on the feeding wheels in a circumferential array mode, and the number and the roughness of the grinding teeth on the feeding wheels are gradually increased in the feeding direction. According to the bearing roller grinding device, the angle between the left turning plate and the right turning plate is adjusted according to the specification of a roller to be machined, so that the angle of the feeding channel is adjustable, and the bearing roller grinding device is suitable for rollers of different specifications. And the grinding teeth have the functions of limiting the rollers and grinding the side faces of the rollers at the same time, so that rough grinding of the grinding teeth for grinding the rollers is transited to accurate grinding, and the grinding efficiency of the rollers is further improved.

The utility model discloses a putty powder spraying machine for an outer wall surface of a building. The putty powder spraying machine comprises a trolley and a grinding mechanism, a feeding mechanism is arranged on the bottom wall of the trolley, a connecting pipeline is arranged at the front end of the feeding mechanism, a spray gun is fixedly connected to the front end of the connecting pipeline, and a supporting frame is fixedly connected to the front side of the bottom wall of the trolley; the grinding mechanism comprises a discharging base, a grinding cylinder, a grinding assembly and a discharging hopper, the discharging base is fixedly connected to the upper surface of the supporting frame, the rear side of the discharging base communicates with the middle of the feeding mechanism through a discharging pipeline, the grinding cylinder is fixedly connected to the upper end of the discharging base, and the interior of the upper end of the grinding cylinder is in an inverted cone shape; according to the putty powder spraying machine for the outer wall surface of the building, putty powder can be ground before spraying, the texture of the putty powder is finer and smoother, and meanwhile the situation of material blocking is reduced.

The application discloses a stirring mill type powder reactor for processing high specific surface area calcium hydroxide, and relates to the technical field of calcium hydroxide processing equipment. The reactor comprises a mounting base, which is provided with a stirring mill box and a reaction box, and is internally provided with a stirring mill crushing assembly and a mixing reaction assembly, respectively. High-activity calcium oxide powder is fed into the reaction box through a feeding box, and water solution and dispersants supplied by two proportioning boxes are transferred to a reaction drum through a transfer conveyor, so that full reaction is realized in cooperation with a turnover plate. After reaction, the material is fed into a stirring mill drum through a dropping pipe, is crushed by spiral stirring mill blades and grinding tooth blocks, and is output through a conveying mechanism. The application adopts an integrated structure, is matched with temperature control, sealing and pulse air supply design, improves mixing uniformity and reaction efficiency, refines powder particle size, and helps to prepare high specific surface area calcium hydroxide. The structure is compact, operation is convenient, and practicality is high.

The invention relates to a disc mill comprising: a rotor disc which is connected to a rotary drive shaft with a central region in a floating manner; the first stator disc is located on the driving motor side, and a first abrasive disc gap is formed between the first stator disc and the rotor disc; the second stator disc is located on the side opposite to the driving motor side, and a second abrasive disc gap in fluid communication with the first abrasive disc gap is formed by the second stator disc and the rotor disc; a gap adjustment device adapted to move at least one of the first and second stator discs in an axial direction; the fiber pulp has fiber pulp inlet pressure when entering the disc mill on the driving motor side of the rotor disc and / or on the side opposite to the driving motor side, and the grinding teeth forming the first grinding disc gap and the second grinding disc gap have different grinding tooth structures. The difference of the grinding tooth structures leads to the fact that one grinding sheet gap has lower fiber pulp passing amount between the grinding teeth relative to the other grinding sheet gap and thus has higher pulp layer thickness so as to exactly offset unbalanced pulp pressure on two sides of the rotor disc caused by the combined action of the fiber pulp inlet pressure and the gap adjusting device.

This utility model relates to a sawtooth-type crushing grinding disc, belonging to the technical field of grinding mill and pulping machine components. The sawtooth-type crushing grinding disc includes a grinding disc body, which is an integral structure; a central through hole is provided in the center of the grinding disc body; multiple crushing teeth are spaced apart within the central through hole; multiple mounting holes are evenly distributed on the grinding disc body; and grinding tooth rings are provided on both the front and back of the grinding disc body. This sawtooth-type crushing grinding disc has a compact structure and ingenious design; it adopts a structural design with crushing teeth within the central through hole. This design allows the grinding teeth to crush clogged materials, thereby solving the problem of easy jamming found in existing grinding discs, making it particularly suitable for the needs of grinding mills and pulping machines.

A powder pulverizing and sieving device for solid-state fermentation products comprises a base, a first mounting seat is arranged on the base, a pulverizing chamber and a driving motor are arranged on the first mounting seat, the output end of the driving motor is connected with a rotating shaft arranged in the pulverizing chamber, a plurality of pulverizing teeth are arranged on the rotating shaft, and a material filtering structure detachably matched with the pulverizing chamber is arranged in the pulverizing chamber. A discharging barrel is arranged at the bottom of the powdering chamber, the powdering chamber is connected with the opening and closing cover through a hinge piece, the opening and closing cover and the powdering chamber are locked in a matched mode through a locking structure, a feeding pipe is arranged on the opening and closing cover, and a sealing structure is arranged at the feeding end of the feeding pipe. By the adoption of the structure, smashing and powder making are uniform, rapid and stable, automatic screening is achieved, and the purity and consistency of finished products are kept; the screening structure is convenient to disassemble and clean, meanwhile, the screening size is flexibly adjusted and selected, the adaptability of the product in use is improved, and cleaning and maintenance are convenient; the device is high in overall sealing performance, convenient to feed, high in pulverizing and screening processing efficiency and high in practicability.

The utility model provides a garbage crushing assembly and a kitchen garbage disposer, the garbage crushing assembly comprises a fixed cutting piece and a movable cutting piece capable of rotating relative to the fixed cutting piece, and the fixed cutting piece comprises a fixed cutter part; the movable cutting piece comprises an upper movable cutter part and a lower movable cutter part; the upper movable cutter part is higher than the fixed cutter part and passes through the upper surface of the fixed cutter part when the movable cutting piece rotates; movable grinding teeth are arranged on the lower surface of the upper movable cutter part; the lower movable cutter part is lower than the fixed cutter part and passes through the lower surface of the fixed cutter part when the movable cutting piece rotates; and fixed grinding teeth are arranged on the lower surface of the fixed cutter part. The kitchen garbage disposer comprises a machine body and the garbage crushing assembly. The movable cutting piece and the fixed cutting piece are matched to cut garbage, and the fixed grinding teeth and the movable grinding teeth are further arranged to grind and smash the garbage, so that the garbage is treated more sufficiently, and recycling of the garbage is facilitated.