119results about How to "Increase torque" patented technology

The utility model relates to the technical field of driving modules, and provides an electric curtain driving module aiming at the condition that the output torque of a driving belt pulley, directly driven by a motor, of a traditional electric curtain is limited, the electric curtain driving module comprises a driving box and a power box, and the power box is located at the bottom of the driving box; a driving belt pulley is rotationally connected into the driving box; a driving motor and a gear reducer are arranged in the power box; the output end of the driving motor is in driving connection with the input end of the gear reducer; the input end of the gear reducer is in driving connection with the driving belt pulley through a transmission assembly; the power box is connected with the driving box through a connecting assembly. The effect of improving the output torque of the driving belt wheel is achieved.

The invention relates to the technical field of building material recovery and treatment, and discloses waste building material recovery and treatment equipment which comprises a main body assembly, a crusher shell, a main rotating shaft, an auxiliary rotating shaft, crushing teeth, a supporting piece, a driving piece and a conveying belt, and the main rotating shaft and the auxiliary rotating shaft are arranged in the crusher shell; the crushing teeth are fixed to the surface of the main rotating shaft and the surface of the auxiliary rotating shaft respectively, the supporting piece is arranged in the crusher shell, and the driving piece is arranged on the crusher shell. The crusher has the beneficial effects that by arranging the adjusting assembly, during normal crushing, the high crushing efficiency of the crusher can be kept, and when the crusher encounters stones with high hardness, the torque of the crushing teeth can be enhanced, so that the crushing teeth can crush the stones with the high hardness; the problems that when an existing crusher treats objects difficult to crush, efficiency is low, and blockage and damage are prone to occurring are solved.

The invention provides a torque optimization type flat axial magnetic flux motor which comprises a main body assembly, and the main body assembly comprises two stator iron cores, an electromagnetic ring, a mounting frame, an electromagnetic coil, a rotor disc, a mounting seat, two limiting blocks, two fixing plates, two upper magnetic blocks, two limiting grooves, two limiting rods, a supporting spring and a through groove. And the through grooves are symmetrically formed in the rotor disc. When the robot needs to bear a large load, the electromagnetic ring pushes the sliding block through the lower magnetic block, the sliding block drives the clamping blocks, the two clamping blocks get close to each other, then the electromagnetic ring works, the upper magnetic block is pushed through magnetic force to move in the direction away from the mounting frame, meanwhile, the mounting base drives the magnetic steel, and due to the fact that the mounting base generates displacement, the magnetic steel is driven to rotate. And the torque of the axial magnetic flux motor is in direct proportion to the cube of the radius of the rotor, so that the torque can be remarkably improved by increasing the radius of the rotor, the motor is further suitable for a scene with a relatively large load, and the motion performance of the robot is ensured.

The invention discloses a planetary clutch device, and belongs to the technical field of steering engines. The device is used for conducting conversion of different transmission ratios on a steering engine and comprises a clutch spring, a sun clutch piece, a ring gear clutch piece, a planet gear and a planet carrier used for installing the planet gear, the clutch spring abuts against the left end face of the sun clutch piece, the right end face of the sun clutch piece is matched with the ring gear clutch piece in a separable mode, and the planet carrier is used for installing the planet gear. The ring tooth clutch piece comprises an inner gear ring, the planet teeth are meshed with the inner gear ring, and when the clutch spring is stressed to be in a clutch state, the sun clutch piece is disengaged from the ring tooth clutch piece, meanwhile, the sun clutch piece is matched with the planet teeth, and therefore transmission ratio conversion is achieved. The device has the beneficial effects that when the starting speed is high and the load is increased, the clutch of the steering engine is triggered, the planetary gear set immediately joins in transmission, the gear ratio is increased, the torque is increased, and torque conversion can be achieved without electric control matched gear shifting.

The utility model discloses a bidirectional output integrated shaft angle head, which relates to the field of machinery and comprises a shell, a transmission shaft and an output shaft, two ends of the output shaft are respectively provided with a cutter mounting groove, the bottom of the transmission shaft is fixedly connected with a spiral bevel gear A. The outer surface of the output shaft is sleeved with a shaft sleeve. One end of the shaft sleeve is sleeved with a spiral bevel gear B, and the spiral bevel gear B is meshed with the spiral bevel gear A. The small-modulus multi-tooth structure spiral gear is selected, the inner diameter of the gear is maximized so that the requirement that the gear can pass through the large end of the gear can be met, machine tool power is output in a steering mode through the spiral bevel gear, cutters at the two ends are driven to rotate to participate in cutting, and the structural stability and torsion are improved; the phenomenon that the angle head is easy to damage is reduced, low-cost and high-efficiency stable processing of batch products can be realized, the production efficiency is improved, and the cost is saved.

The invention provides a folding device, a shell assembly and electronic equipment. The folding device comprises a base assembly, a first rotating part, a first cam part, a first elastic part and a second cam part. The base assembly comprises a base and two rotating shafts arranged on the two opposite sides of the base, the two rotating shafts are sleeved with the two first rotating pieces respectively, and in the axial direction of the rotating shafts, a first cam is arranged on one side of each first rotating piece, and a second cam is arranged on the other side of each first rotating piece. The first cam piece is arranged on the two rotating shafts in a sleeving mode and provided with two third cams matched with the two first cams. At least one first elastic piece sleeves the rotating shaft, one end of the first elastic piece abuts against the first cam piece, and the other end of the first elastic piece is fixed to the rotating shaft. The second cam piece is arranged on the two rotating shafts in a sleeving mode and provided with two fourth cams matched with the two second cams. The torsion of the folding device can be improved, and when the size of the folding device is reduced, the folding device can still meet the opening and closing hand feeling and hovering requirements of the whole machine.

The application relates to the technical field of robots, and discloses a kind of two-degree-of-freedom parallel ankle joint mechanism of humanoid robot and kinematics and mechanics solving method, including seven-link transmission structure, which is composed of two groups of closed-chain transmission of parallel four-bar linkages.Motor I and II are installed on the upper end of the lower leg, and the rotation drives link IV and III to move through link I, II, V and VI, and then coupled control ankle joint pitch and lateral freedom degree.The mechanism realizes load balancing of double motors through parallel transmission, improves equivalent torque, and can combine kinematics and mechanics solving method, so that precise control can be realized only by motor feedback, sensor cost is reduced, and is suitable for high stability motion demand of biped robot.

The utility model discloses a high-flow peristaltic pump, which belongs to the technical field of peristaltic pumps and comprises a driving motor, a shell, a hose and an extrusion mechanism, the extrusion mechanism is positioned in the shell, an output shaft of the driving motor penetrates through the shell and is connected with the extrusion mechanism, the hose is bent and embedded between the extrusion mechanism and the inner wall of the shell, and two ends of the hose penetrate out of the upper side of the shell; the extrusion mechanism comprises a gear shaft, a gear carrier and a plurality of driven gears, the gear shaft is installed in the center of the gear carrier, the driven gears are evenly distributed on the gear carrier along the axis of the gear shaft and meshed with the gear shaft, and the driven gears make contact with the hose. The driving motor directly drives the driven gears to extrude the hose, large-flow pumping is achieved, a traditional gear box is omitted, the structure is simple, cost is reduced, in addition, the semicircular clamping grooves slightly smaller than the outer diameter of the hose are used for clamping the hose, traditional clamping pieces are omitted, and the service life of the hose is prolonged. And when the hose is replaced, the length of the hose is not required, so that the hose is more convenient to replace.

The invention discloses a hot water circulating pump with couplings, and relates to the field of centrifugal pumps, the hot water circulating pump comprises a base, the top surface of the base is fixedly connected with a base plate, a protective cover, a first support and a pump body, and the end face of the pump body is provided with a machine seal gland. Therefore, maintenance cost is reduced, potential safety hazards are reduced, the coaxiality calibration process is simplified, repeated measurement and adjustment of the position of the motor are not needed, time and labor are saved, coaxiality can be guaranteed, overload protection can be achieved, overload burning of the motor can be avoided, safety accidents are reduced, the operation safety of the whole hot water circulation system is improved, and the service life of the hot water circulation system is prolonged. And overload protection can be adaptively changed according to the size of the motor, so that coaxiality calibration and overload protection adjustment are synchronously carried out, secondary measurement and adjustment are not needed, and the automation degree of the device is improved while time and labor are saved.

The utility model relates to the field of screwing machine, disclose a kind of screwing machine big torque connecting shaft, including connecting shaft main body, the both sides of connecting shaft main body are detachably installed with universal joint fork, the side of universal joint fork is swingly articulated with cross shaft, the side of cross shaft is swingly articulated with driven shaft, the outside of connecting shaft main body is provided with reinforcing spline, the outside of reinforcing spline is installed with spline sleeve, the universal joint fork is threadedly connected with mounting bolt and reinforcing bolt, the surface of connecting shaft main body is provided with mounting hole. The big torque connecting shaft of the screwing machine allows the existence of certain angular deflection of connecting shaft main body when using by the connecting mode of universal joint, further realizes torque compensation and angle compensation by using titanium alloy material with universal joint fork in cooperation with connecting shaft main body, and the durability of connecting shaft main body is enhanced, the structure realizes the function of enhancing torque compensation, solves the problem that the torque acting on connecting shaft is too large.

The utility model provides a general type implant extractor relates to the field of extractor, the utility model discloses handle part, power assisting part and take out the part, wherein take out the part and install one end at handle part, take out the part and pass through the thread cooperation between surface screw and implant internal screw thread, use power assisting part and insert on handle part and increase take out the part rotation torque, take out the part to assist and take down the implant. The utility model discloses, take out the part and screw in the implant screw hole, then can link together between handle part and the implant, and then can extend the implant, and the convenient implant is taken out.

The invention relates to the technical field of transmission instruments, in particular to an underwater gearbox. The underwater gearbox comprises a power input mechanism, a power switching mechanism, a power output mechanism, a pressure balance mechanism and a relief mechanism, the input end of the power input mechanism can be in butt joint with the output end of the underwater robot and transmit torque, the power switching mechanism comprises a bevel gear, and the bevel gear is in butt joint with the output end of the power input mechanism and transmits torque. The power output mechanism is provided with a worm and gear structure, the input end of the worm and gear structure is fixed to the bevel gear, the bevel gear is configured to change the power transmission direction of the power input mechanism, the output end of the worm and gear structure is in butt joint with the input end of the underwater valve and transmits torque, and the pressure balance mechanism is in sealed butt joint with the power output mechanism. The pressure balance mechanism can balance the internal and external pressure of the underwater gear box body, and the relief mechanism can conduct the outside and the interior of the underwater gear box when the internal pressure of the underwater gear box reaches a preset value.

This utility model relates to the field of zinc-aluminum alloy die-casting mold technology, and discloses an easy-to-install, reinforced, and resistant-to-detachment insert device, including a fixed mold, a moving mold, and a mold slider. An insert assembly is provided between the mold slider and the mold slider. A transition groove is provided at the end of the mold slider near the insert assembly. The insert assembly includes a pin and a nest, which are fixedly installed. A knurled groove is provided at the end of the pin away from the nest. This easy-to-install, reinforced, and resistant-to-detachment insert device, through the double-headed knurled design of the insert, eliminates the need for workers to install the insert backwards during installation. Furthermore, the large chamfer on the mold and the appropriate length of the insert make the insert easier to install and easier to demold, reducing mold opening deformation. This structure can be easily applied to mold products, improving the service life of the mold and ensuring production demolding stability. It can further enhance the installation of the insert, improving thread torque and fatigue resistance.

The invention relates to the field of hard alloy product production, in particular to a production method of a high-toughness and wear-resistant hard alloy. A production method of a high-toughness and wear-resistant hard alloy comprises the following steps that S1, raw materials including, by mass, 40%-45% of WC powder, 25%-35% of Fe powder, 3%-5% of Si powder, 0.95%-1.16% of C powder, 2.5%-3.2% of Ni powder, 9%-12% of Co powder, 1.75%-2.05% of Mo powder and 0.15%-0.3% of VC powder are taken, and the purities of all the powder components are all larger than 99%; s2, mixing the raw material powder in the step S1 with a ball milling medium according to a ratio, and mixing by adopting a wet ball milling process; s3, drying the slurry, and sieving to prepare granules; s4, pressing the granules into a hard alloy blank; s5, the hard alloy blank is sintered in a vacuum or low-pressure sintering furnace, and the sintering temperature is controlled to be 1180-1250 DEG C; and S6, after sintering is completed, a sintered body is cooled, precision machining is conducted according to requirements, and a product is obtained. The high toughness and wear resistance of the hard alloy material are remarkably improved.

The utility model discloses an unequal air gap motor structure and a scroll compressor, belongs to the technical field of compressors, and aims to solve the problems that the motor efficiency is influenced and vibration and noise are caused by adopting a uniform air gap structure. According to the technical scheme, the unequal-air-gap motor structure comprises a plurality of stator punching sheets and a plurality of rotor punching sheets, stator inner holes are formed in the stator punching sheets, the rotor punching sheets are located in the stator inner holes, and a plurality of magnetic poles are arranged on the sides, close to the rotor punching sheets, of the stator punching sheets. A plurality of air gaps are formed between the sides, close to the rotor punching sheet, of the magnetic poles and the outer ring surface of the rotor punching sheet, a plurality of concave structures are arranged on the sides, close to the rotor punching sheet, of the magnetic poles, the intervals of the air gaps are unequal, and through the concave structures which are the same in shape and structure and are mutually symmetrical, the machining difficulty is reduced, and the length of the air gaps can be remarkably increased; and meanwhile, an unequal air gap structure is formed, so that the noise in the operation process of the motor is reduced, the noise in the operation process of the scroll compressor is further reduced, and the performance and the reliability of the scroll compressor are improved.

This invention provides a coreless stator for a high current density axial flux motor and an axial flux motor. The coreless stator of the high current density axial flux motor includes at least one stator winding layer, which includes several circumferentially spaced and independent conductive coil units. In each stator winding layer, several conductive coil units are processed on a conductive substrate using a subtractive process. Each conductive coil unit includes a planar working portion extending straight in a radial plane, an outer transition line portion connected to the outer end of the planar working portion, and an inner transition line portion connected to the inner end of the planar working portion. At least one of the outer transition line portion and the inner transition line portion is bent wholly or partially relative to the planar working portion, thereby forming a three-dimensional transition line portion. This directly releases the radial plane space occupied by the outer transition line portion and the inner transition line portion, thereby significantly increasing the radial width and total area of ​​the effective electromagnetic working area and achieving a significant improvement in torque and power density.

The application relates to the technical field of wheel hub motors, in particular to an electric vehicle double magnetic circuit motor which comprises a motor shaft and a wheel hub, the wheel hub is movably arranged on the motor shaft, a cover plate is arranged on the wheel hub, an adjusting structure is arranged on the wheel hub, and a transmission structure is arranged on the motor shaft. The electric vehicle double magnetic circuit motor has the beneficial effect that: through the arrangement of the transmission structure, external power supply lines are electrified, the first magnetic steel and the second magnetic steel drive the rotating frame to rotate on the motor shaft through the bearing under the action of the stator, the wheel hub rotates along with the rotating frame, the gear ring rotates under the action of the wheel hub, the planetary gear rotates along with the gear ring, and thus the torque can be improved and the performance of the motor as a whole can be increased.

The application relates to the field of friction stir solid-phase additive manufacturing, and particularly provides a friction stir solid-phase additive manufacturing device and method.The device comprises a feeding shaft, a heating part and a stirring shaft shoulder, the feeding shaft is provided with a feeding channel, a mounting part and a cooling flow channel; the feeding channel axially penetrates the feeding shaft, the feeding channel is provided with an inlet and an outlet, a target rod material is fed into the feeding channel from the inlet; the mounting part and the cooling flow channel are arranged in sequence along the moving direction of the target rod material; the cooling flow channel is provided with cooling liquid, which is used for cooling the plasticized material and the feeding shaft; the heating part is connected with the mounting part, is used for heating the passing target rod material and obtaining the plasticized material, and the plasticized material is discharged from the feeding shaft through the outlet; the stirring shaft shoulder is sleeved outside the feeding shaft and is rotationally connected with the feeding shaft, the stirring shaft shoulder is provided with a stirring friction part, and is used for stirring and friction of the target base material and the plasticized material to realize solid-phase additive manufacturing. The application effectively improves the additive efficiency, the space utilization rate and the additive quality.

A multi-parameter and multi-objective optimization design method for a single-phase induction motor relates to a motor optimization design method, comprising step 1: obtaining electromagnetic noise data of the single-phase induction motor prototype through an electromagnetic noise test experiment of the single-phase induction motor prototype, analyzing the electromagnetic noise amplitude-frequency characteristics of the single-phase induction motor prototype using the test data, and finding the frequency component whose amplitude is greater than a set threshold; step 2: optimizing geometric structure parameters using an electromagnetic finite element model of the single-phase induction motor; step 3: optimizing circuit parameters using an electromagnetic analytical model of the single-phase induction motor. The present invention can quickly improve motor output performance and NVH performance by changing motor geometric structure parameters and circuit parameters on the basis of the prototype, thereby improving the market competitiveness of the product.

The present invention provides a hydrodynamic ground source heat exchange buried pipe device, including a shell, in which a hydrodynamic part and a functional part are arranged; in the hydrodynamic part, a water inlet thread connection is fixed to the upper part of the shell, and a U-shaped heat exchange pipe to be buried underground is connected to the water inlet thread connection; a protective pipe is arranged inside the shell, and the upper and lower parts of the protective pipe are respectively connected to the shell; a hydrodynamic turbine is arranged inside the protective pipe, and is fixed to the two ends of the protective pipe through an upper bearing and a lower bearing; the functional part includes a worm and a ground-breaking wheel rotating in opposite directions, the worm and the hydrodynamic turbine are arranged on the same main shaft, and the ground-breaking wheel is connected to the shell and meshes with the worm. At the same time, the present invention also provides a method for using the above-mentioned hydrodynamic ground source heat exchange buried pipe device; the hydrodynamic ground source heat exchange buried pipe device of the present invention is simple to operate, convenient to construct, low in cost and does not require recycling, and is suitable for various scenes where ground source heat pumps and air conditioning systems require buried pipes.

The utility model discloses a low-energy-consumption door leaf framing structure, which belongs to the technical field of door leaf framing, and comprises a light opening, a transverse frame, a framing corner brace and a framing clamping plate, the framing corner brace comprises an outer frame and a reinforcing rib, the outer side of the framing corner brace is provided with two first through holes, and the outer side of the framing corner brace is provided with two second through holes. And the two first through holes are internally provided with anti-skid retaining bolts, spring washers are arranged between the anti-skid retaining bolts and the framing corner connector, two first threaded holes are formed in the outer side of the framing clamping plate, and a through glue groove is formed in the side, close to the optical opener, of the framing corner connector. The utility model solves the problem that the heat insulation performance is influenced by the quality problems that the splicing position is not flat, warped and the like when used on a large-specification unit door, cracks occur at the splicing position in the using process, water seepage occurs in a corner cavity, the integral attractiveness of a door and a window is influenced, leakage occurs and the like.

The present invention belongs to the technical field of material winding, and discloses an anti-fracture winding machine for winding PET film, including a frame; a feeding component; a sorting component; a cleaning component; a variable component; a winding component and an arc surface component. The present invention is equipped with a newly designed arc surface component. When the second motor rotates, it will drive the sun gear on the right to rotate, driving the three meshing planetary gears to rotate in the fixed gear ring, ensuring the smoothness of the second motor operation and enhancing the torque. The second rotating wheel and the first belt can transmit the rotational force to the circular shaft connected to the first rotating wheel. A plurality of trapezoidal round rods inserted in the circular ring and mounted around the outer edge of the circular shaft form a trapezoidal surface with a flat middle and gradually contracted on both sides. When the film passes through this, it will slightly contract inward by a certain angle, presenting a convex arc surface, so that it can better fit the winding core, solving the problem of curling fracture of the film during the winding process.

The flying wing type rechargeable underwater cruise underwater glider comprises a flying wing type shell, a main pressure-resistant cabin is installed on the top of the flying wing type shell, and a temperature difference energy power generation system, an underwater cruise system, an ocean current energy power generation system and a buoyancy adjusting system are sequentially and symmetrically installed on the two sides of the main pressure-resistant cabin; the ocean current energy power generation system comprises a power generation system, a supporting system and a retractable mechanism, the top of the supporting system is provided with the power generation system, and the bottom is connected with the retractable mechanism; the power generation system comprises an impeller system, and an impeller of the impeller system can stretch out, draw back and be folded. The system can be freely switched among three working modes of underwater gliding, underwater residing and underwater cruising, and tasks can be executed for a long time. According to the flying wing type underwater glider, the running system and the ocean current energy power generation system can be adjusted by the retracting and releasing system to rotate, the appearance of the flying wing type underwater glider is not changed while the underwater residence, cruising and power generation functions of the glider are achieved, and the excellent fluid performance in the gliding working mode is guaranteed.

The utility model provides an external rotor motor and a pump, and belongs to the technical field of water pumps. The problem that an existing pump is short in service life is solved. According to the utility model, the external rotor motor comprises a stator assembly, a rotor assembly and a central shaft, the stator assembly comprises a base and a stator assembly arranged at the front side of the base, and the rotor assembly is cylindrical and is an injection molding integrated piece; the stator assembly is located in an inner cavity of the rotor assembly, the stator assembly and the machine base are formed into a whole through plastic injection molding, and the stator assembly is sealed in plastic. A concave cavity is formed in the front side of the stator assembly, the center shaft is made of corrosion-resistant materials and arranged in the concave cavity, the front end of the rotor assembly is sleeved and fixed to the front end of the center shaft, and the rear end of the center shaft is in running fit with the inner wall of the concave cavity through a first bearing. The pump includes a pump housing and an outer rotor motor disposed within the pump housing. The outer rotor motor and the pump are long in service life.

This application discloses an end cap assembly, a battery cell, an energy storage device, and an electrical device. The end cap assembly includes an end cap, an upper plastic layer, and a terminal post. The end cap has a through hole for the terminal post. The upper plastic layer has a first mounting through hole on its main body and a second mounting through hole on its protruding portion. The inner wall surface of the second mounting through hole includes a first anti-rotation surface. The outer peripheral surface of the main body includes a positioning surface, which is a plane. The upper plastic layer is disposed on the end cap, the protruding portion passes through the terminal post through hole, and the main body is disposed on the top surface of the end cap. The outer peripheral surface of the first column of the terminal post includes a second anti-rotation surface. The terminal post is mounted on the upper plastic layer, the protrusion of the terminal post passes through the first mounting through hole, and the first column passes through the second mounting through hole. The second anti-rotation surface is in contact with the first anti-rotation surface, and the second anti-rotation surface and the first anti-rotation surface are mutually anti-positioned along the circumferential direction of the terminal post. The protrusion of the terminal post passes through the first mounting through hole. The end cap assembly provided by this application can prevent the terminal post from twisting when subjected to external force, thereby improving the sealing performance of the terminal post.

The utility model relates to a split type stator structure, comprising a stator iron core which comprises two symmetrical stator iron core base bodies; a coil wound on the stator core; and each insulating frame is arranged between the corresponding coil and the corresponding stator iron core base body and covers the whole inner surface of the stator iron core base body. The stator iron core of the split type stator structure is arranged to be two symmetrical stator iron core base bodies so as to form a folding structure, the winding slot fullness rate can be improved, the output power and the torque of the motor are further improved, and independent winding can be carried out on the single stator iron core base body after the stator iron core base body is opened so as to improve the winding efficiency. And each insulating frame covers the whole inner surface of the stator iron core base body, so that electric leakage and coil abrasion can be effectively prevented.

The application belongs to the technical field of vehicle braking system, and discloses a segmented pole arc motor for an electronic mechanical braking system, a use method and a vehicle.The motor comprises a stator and an inner rotor, the stator adopts a split tooth structure, is provided with an alternating current armature winding and a direct current excitation winding, and the rotor is provided with segmented pole arc permanent magnets, so that the motor forms a hybrid excitation structure in which a permanent magnet magnetic field and an excitation magnetic field are superposed.Through segmented optimization of the pole arc of the permanent magnet, the air gap magnetic flux waveform is improved, the cogging torque and torque ripple are reduced, and the running stability is improved; equivalent flux linkage is controlled by adjusting the excitation current, the no-load speed is improved in the braking gap elimination stage, and the armature current and the locked-rotor copper loss are reduced in the clamping force following and maintaining stage.The cogging torque, torque ripple and locked-rotor copper loss are reduced in the structural level and the control level, and the application is suitable for stable and reliable work of the electronic mechanical braking system under various working conditions.

The invention relates to the technical field of roller bits, in particular to an equal-wall-thickness screw motor which comprises an equal-wall-thickness stator, the inner wall of the equal-wall-thickness stator is provided with a linear structure, and equal-thickness rubber is arranged on the linear structure. The engineering plastic is used for injection molding, and after molding, the strength is high, the hardness is high, and the bearing performance is high.

A grinding device suitable for a meat grinder comprises a material bowl, a blade assembly and a bowl cover assembly. The blade assembly is located in the material bowl, and the bowl cover assembly covers the material bowl. The bowl cover assembly is provided with an acceleration gear set, an input shaft of the acceleration gear set upwards extends out of the bowl cover assembly, an output shaft of the acceleration gear set extends out of the bowl cover assembly, and the output shaft of the acceleration gear set is assembled with the blade assembly in a transmission mode. According to the scheme, the speed increasing mechanism is additionally arranged in the grinding device, and low-rotating-speed and high-torque output of the meat grinder is converted into high-rotating-speed and low-torque output needed by grinding, so that the meat grinder can achieve the grinding function under the condition that an additional motor is not added.