1522 results about "Impeller" patented technology

An exhaust turbocharger has a housing, in which a shaft is mounted by bearings, which carries a turbine wheel, on the one hand, and a compressor wheel, on the other hand. An electric machine has a rotor and a stator. The rotor is secured on the shaft for conjoint rotation therewith and the stator surrounds the rotor radially on the outside. A sleeve, which supports the rotor radially and axially, is arranged between the stator and the rotor. The sleeve has at least one fluid duct, by way of which a cooling fluid can be guided toward the bearings of the shaft.

This invention discloses a self-cooling mechanical seal device for high-temperature pumps, comprising a pump shaft, with an impeller, a rotating ring assembly, a stationary ring assembly, a heat dissipation module, and a cooling fan arranged coaxially along the pump shaft axis. The rotating ring assembly rotates synchronously with the pump shaft, and the rotating ring assembly and stationary ring assembly cooperate to form a sealing end face. The stationary ring assembly is fixedly installed, and the side of the stationary ring assembly facing away from the sealing end face is tightly connected to the heat dissipation module. A high thermal conductivity filler layer is provided between the stationary ring assembly and the heat dissipation module. Radially extending heat dissipation fins are integrally formed on the radially outer surface of the heat dissipation module. A heat insulation sleeve is provided between the heat dissipation module and the pump shaft. The cooling fan is fixedly installed on the pump shaft and located axially outside the heat dissipation module. This invention achieves integration without external cooling medium and power, enabling efficient active self-cooling and significantly improving the reliability and lifespan of the mechanical seal under high-temperature conditions.

This utility model discloses a high-temperature resistant cooling circulation structure for a fluoroplastic magnetic pump, specifically relating to the field of magnetic pumps. It includes a base, pump body, pump cover, connecting frame, isolation sleeve, inner magnetic rotor, outer magnetic rotor, motor, and impeller. The isolation sleeve, inner magnetic rotor, and outer magnetic rotor are all housed inside the connecting frame. The high-temperature resistant cooling circulation structure of this fluoroplastic magnetic pump features a spiral cooling channel inside the isolation sleeve. The coolant flows directly through the core area of ​​the heat source, rapidly absorbing heat transferred by magnetic eddy currents and high-temperature media through forced convection, thus improving cooling efficiency and effectively blocking heat transfer to the outer magnetic rotor, preventing permanent magnets from demagnetizing and failing due to high temperatures. Copper-nickel alloy heat-conducting fins are welded to the inner wall of the isolation sleeve, combined with a layer of thermally conductive silicone grease, accelerating the conduction of heat from the inner magnetic rotor to the cooling channel. A vacuum cavity is provided between the spiral cooling channel and the outer wall of the isolation sleeve to suppress heat conduction to the outer magnetic rotor, achieving double thermal isolation.

The present disclosure provides a kind of blade for inhibiting the blade of leakage vortex break, blade assembly, impeller machinery and blade shaping method.The blade profile is defined according to the cross section profile of the height direction accumulation, the cross section profile has the ratio of the height of the cross section profile and the total height of the blade, the dimensionless blade height H=1 is the blade tip, the dimensionless blade height H=0 is the blade root;The cross section profile also has the back bending angle δ;At the dimensionless blade height H=1, the back bending angle δ=13 °, and has the tolerance range of the numerical ratio ±20%.

This utility model discloses a leaf blower based on a lithium battery, aiming to solve the technical problem that the handle structure of existing handheld lithium battery leaf blowers is generally fixed, which cannot be adjusted according to the user's height and body proportions. This forces users to operate in unnatural postures such as bending over or raising their arms, resulting in shoulder and neck muscle strain and reduced work efficiency. The invention includes a housing, an air nozzle, and a U-shaped handle. The housing includes an impeller assembly housing and a cylindrical drive motor assembly housing. The impeller assembly housing includes a first housing and a second housing. The drive motor assembly housing includes a third housing and a fourth housing. An annular dovetail groove is provided at the joint between the outer walls of the third housing and the outer walls of the fourth housing. The U-shaped handle includes a U-shaped body. The U-shaped body includes two connecting ends and a first dovetail slider. The first dovetail slider is slidably embedded in the dovetail groove. An arc-shaped connecting bridge is provided between the two connecting ends. The arc-shaped connecting bridge is threadedly fixed to the dovetail groove.

The utility model relates to rose jam fermentation technical field, and disclose a kind of rose jam fermentation equipment of controllable fermentation environment, including fermentation vat, the outer wall of fermentation vat is respectively fixedly installed with water inlet component and drain, the top of fermentation vat is fixedly assembled with sealing cover, the inner wall of fermentation vat is fixedly installed with motor one, the output shaft of motor one is fixedly installed with rotary disc, the top of rotary disc is fixedly installed with impeller disc. The starting of two sides motor three is controlled by control head, so that motor three drives screw column to rotate, so that screw column moves by and the threaded connection of extension plate drives extension plate to generate, further so that extension plate drives the rack of top to generate movement, so that rack drives gear to generate rotation by and the meshing of gear, further so that gear drives the sealing ball of bottom to generate rotation, so that hot water or cold water enters the inside of water storage warehouse, simultaneously by the rotation of impeller disc liquid is rapidly mixed, reach the purpose of temperature regulation.

The present invention provides a fan comprising: a motor for rotating an impeller unit; and a frame member having: a cylindrical housing; a base plate disposed inside the housing; and fixed blades extending between the base plate and the housing, wherein a circuit board of the motor is disposed on the base plate, and a protrusion protruding toward the circuit board is provided on the surface of the base plate on the impeller unit side, and the inner peripheral portion of the back side of the base plate is recessed toward the impeller unit side more than the outer peripheral edge of the back side.

1. Name of the designed product: impeller (split type). 2. Use of the designed product: impeller for fan and water pump. 3. Design points of the designed product: in shape. 4. Picture or photo showing the design points: combination state figure 1.

This utility model discloses an impeller device for a fan, relating to the field of FRP (fiberglass reinforced plastic) fan technology. The impeller device includes a rear chassis, multiple blades, and a front chassis. The blades are fixed to the rear chassis with bolts. The upper surface of the rear chassis has several bolt holes. The front chassis is connected to the rear chassis via connecting columns. The front chassis is located above the blades and provides additional fixation for them. This utility model uses bolts to fix the blades to the rear chassis, forming a modular design that facilitates subsequent replacement and maintenance. Simultaneously, the front and rear chassis are fixedly connected by connecting columns, and a groove is provided on the lower surface of the front chassis to securely embed the upper end of the blades, forming a double-fixation structure for the blades, effectively improving the stability of the blades under high-speed rotation.

The application discloses a centrifugal fan impeller, a centrifugal fan and a bionic winglet design method, which comprises an impeller body and a blade end winglet, a plurality of blade end winglets are fixedly arranged at one end of the impeller body and are arranged into a circular ring along the circumference of the impeller body; the blade end winglets are gradually increased or decreased along the axial length of the impeller body in sequence along the circumference of the impeller body to form a wave-shaped structure; on the one hand, the bionic wave-shaped distributed blade end winglet structure can straighten the airflow, inhibit the generation and development of vortexes and further reduce vortex noise; on the other hand, the blade end winglet structure with different length distribution characteristics can break the periodic frequency characteristics of the noise source, inhibit the noise peak and effectively inhibit harmonic vibration noise; on the third hand, the blade end winglet can further work on the low-speed and low-pressure airflow, inhibit the gas backflow leakage and the airflow hindering effect at the inlet, and further increase the outlet air pressure and air volume of the fan.

This utility model discloses a polishing machine, including a housing, a drive unit, an impeller, and a working head. The housing has an opening; the drive unit is connected to the housing; the impeller is disposed inside the housing and is driven to rotate by the drive unit, with at least a portion of the airflow generated by the impeller's rotation directed towards the opening; the working head is disposed at the opening and is driven to rotate by the drive unit. The working head includes an outer end face and an outer peripheral surface connected to the outer end face. An air outlet gap is formed between the working head and the opening end of the housing for airflow to pass through, and at least a portion of the airflow passing through the air outlet gap passes over the outer peripheral surface. When the impeller rotates, the airflow it generates can blow away the waste residue produced during polishing, thereby improving polishing efficiency and polishing effect.

This utility model provides a flywheel, including an impeller and a flywheel body. The impeller is integrally molded from plastic and includes a mounting ring and blades. The mounting ring is sleeved on the outer periphery of the flywheel body, and a fixing structure is provided between the mounting ring and the flywheel body. Several blades are evenly distributed around the periphery of the mounting ring. The flywheel provided by this utility model, with its impeller made of plastic, has the advantages of low cost, light weight, and easy molding. Furthermore, the use of plastic material allows for the creation of impellers in various colors for consumers to choose from, or makes it easier to provide customized designs.

The invention relates to a fan with an impeller and an electric motor, wherein the electric motor comprises a rotor, a stator and possibly an electronics pot and the impeller comprises an impeller hub, wherein a cooling structure is formed or arranged radially outside the outer wall of the rotor and radially outside the outer wall of the stator and / or the electronics pot, which cooling structure forms a flow path for a fluid, preferably for air, by way of which a flow is induced as a consequence of a pressure difference generated by the operation of the fan, which flow dissipates heat from the electric motor, from the rotor, from the stator and / or from the electronics pot. Moreover, the invention relates to a corresponding cooling structure for a fan.

The application provides a salt-preventing ocean high-pressure water pump port ring structure based on coupled oscillation, and belongs to the technical field of ocean water pump equipment, and comprises a pump body port ring and an impeller port ring, and an annular gap is formed between the two; a nozzle-shaped first groove is arranged on the inner circumferential surface of the pump body port ring, and a second groove with an inclined wall surface and a backflow channel is arranged on the outer circumferential surface of the impeller port ring; the first groove and the second groove are connected to form a fluid oscillation channel. Through the matching design of the circumferential interval of the groove and the rotating speed of the impeller, the groove connection-separation frequency reaches the ultrasonic frequency band, and double coupling of fluid self-excitation oscillation and ultrasonic vibration is realized. The application effectively prevents salt deposition under the premise of not changing the existing lubrication mode, and significantly improves the water film lubrication performance and the service life of the equipment.

A double-impeller horizontal axis windmill, the impeller comprises a front impeller and a rear impeller, the front impeller and the rear impeller are respectively composed of a pair of square blades, the edge of each blade close to the rotating shaft is perpendicular to the rotating shaft, the rotating shaft and the blade form a 45-degree angle, the angle between a pair of blades is 90 degrees, a pair of blades are respectively located on the oblique opposite sides of the rotating shaft, the 90-degree angle of the two blades of the front impeller faces forward, and the 90-degree angle of the two blades of the rear impeller faces backward; the two ends of the rotating shaft are supported on a U-shaped support through bearing seats, the tail wing of a vertical plate is fixed to the rear end of the support, and the bottom surface of the support is provided with a support for the rotating shaft. The square blade of the utility model forms a 45-degree angle with the horizontal rotating shaft of the windmill, the wind energy utilization rate is high, the power generated by the double-impeller is larger than that of the traditional single-impeller, the square blade has small centrifugal force, and the windmill is not easy to be damaged, when the windmill is used for generating electricity, the power generation equipment is arranged at the bottom of the windmill frame, and the installation and maintenance are convenient.

A hybrid shroud impeller including a hub having a first and a second axial end; the hub including an outer surface formed radially opposite a hub bore; a full blade extending radially from the outer surface; a splitter blade extending radially from the outer surface adjacent to the full blade; a bleed feature formed in a casing; a partial shroud integrally formed with a portion of the full blade and the splitter blade opposite the outer surface of the hub; a flow path formed between the outer surface of the hub, a shroud inner surface of the partial shroud and a blade surface of each of the full blade and the splitter blade; and the flow path extending from an inlet proximate the first axial end and an outlet proximate the second axial end; the partial shroud extends from the inlet to the bleed feature.

The utility model provides a kind of magnetic liquid coupling suspension mechanical pump with split end cap, it is characterized by, including: impeller assembly, end cap, shell and rotor assembly;The inner shell cavity is formed in the shell central area recess;The rotor assembly is installed in the inner shell cavity;The impeller assembly is connected with the rotor assembly;The end cap is including first split end cap and second split end cap formed along radial division, the first split end cap and the second split end cap are installed on the wheel shaft along radial direction.The utility model uses split end cap structure, so that it can realize the integrated forming of impeller assembly and rotor assembly, the structure avoids the structural interference problem caused by traditional end cap needing to be inserted from shaft end, so that impeller and rotor can be integrally inserted into shell interior for assembly, significantly reduce assembly complexity and requirement to machining precision.

This utility model belongs to the field of shielded pumps and relates to a coreless magnetic steel rotor for the axial magnetic field of a permanent magnet shielded pump. It includes: a rotating shaft, with a front ceramic layer and a rear ceramic layer formed by thermal spraying ceramic layers onto the front and rear middle sections of the shaft; an impeller mounted on one end of the rotating shaft; a ceramic ball bearing and a bearing pressure ring mounted on the other end of the rotating shaft; and a coreless magnetic steel rotor mounted on the rotating shaft. The advantages of this structure are: using a stainless steel shaft with thermally sprayed ceramic layers on the bearing positions effectively prevents and eliminates the drawbacks of traditional water bearings, such as short lifespan and easy wear, and ceramic shaft breakage due to overload impact from the medium.

This invention relates to the field of centrifugal fan technology, specifically a centrifugal fan with a self-cleaning function. The fan includes a casing with an air inlet frame fixedly connected to its surface and an air outlet. An impeller is rotatably connected to the inner wall of the casing. The impeller consists of a main shaft and multiple blades uniformly fixedly connected to the main shaft. A motor is fixedly connected to the surface of the casing. This invention draws power from the impeller's main shaft via a transmission assembly. After deceleration by the internal gear ring of the gear and gear, the ball bearings at the end of the push rod roll along the inclined plane of the triangular block, converting the circumferential motion into axial vibration of the slip ring. This vibration causes the filter element to shake off accumulated dust. The entire process eliminates the need for an independent vibration motor, avoiding additional power supply lines and control costs. Simultaneously, the internal gear ring deceleration keeps the impact frequency low, and combined with the rolling friction of the ball bearings, the operating noise is significantly lower than existing solutions using high-frequency vibration motors, meeting the quiet operation requirements of household air conditioners.

Compressor, with an electric disc motor with the following features: a rotor (10) comprising a moving element (105) comprising a paddle wheel; a stator (20) arranged with respect to the rotor (10) such that a motor gap (30) is formed between the rotor (10) and the stator (20), wherein the electric disc motor is configured to convey a gas through the impeller from a source region (90) to a target region (100), wherein a target pressure in the target region (100) is higher than a source pressure in the source region (90), wherein the electric disc motor has a pressure reducer (140) for reducing a pressure acting on the rotor (10) due to the different pressures in the source region (90) and in the target region (100), wherein the pressure reducer (140) is designed such that a pressure in the motor gap (30) is less than the target pressure and greater than or equal to the source pressure, wherein the pressure reducer (140) has a first flow resistance (140a) between the target area (100) and the motor gap (30) and a second flow resistance (140b) between the motor gap (30) and the source area (90), wherein the first flow resistance (140a) is greater than the second flow resistance (140b), and wherein the second flow resistance (140b) of the pressure reducer (140) has a bore (200) in the moving element (105) to provide a passage for the gas from the motor gap (30) to the source area (90) through the rotor (10).

This prevents the impeller from rotating in reverse, ensuring that the impeller, stator unit, and rotor unit operate normally, and continuously rotating the rotor unit regardless of wave conditions to increase the power generation efficiency of the wave power generator. [Solution] The present invention provides a wave power generator comprising: a base; a first holder mounted on one end of the base; a second holder mounted on the other end of the base; a first pivot rod pivotally attached to the first holder; a second pivot rod pivotally attached to the second holder; a stator unit electrically connected to a connector provided on the first pivot rod; an impeller provided between the first pivot rod and the second pivot rod; a rotor unit provided between the impeller and the stator unit; and an ultraviolet unit provided between the first pivot rod and the second pivot rod, located below the impeller, and electrically connected to the stator unit.

A kind of pool sweeper brushless motor, including a housing, the housing inside is provided with the cavity of two end ports, also include: stator assembly, the stator assembly is installed in cavity, and the stator assembly is shaped with center hole, and the stator assembly with the waterproof structure between the inner wall of the cavity is used to fill the gap between the stator assembly and the inner wall of cavity;Rotor assembly, the rotor assembly is set in the center hole, and both ends are rotatably connected in the cavity, the rotor assembly includes the magnetic ring encapsulated in waterproof layer, and the waterproof layer is connected with impeller to push water flow.The brushless motor provided by the present technology, the stator assembly and the rotor assembly are respectively waterproofed, so that the space in the motor cavity can be the same as the pressure of external space, so as not to be affected by pressure difference, and ensure the waterproof effect.

This invention relates to the field of mineral processing equipment technology, and discloses a flotation column for mineral processing. The flotation column includes a frame, a crossbeam fixedly mounted on the top of the frame, a fixed mounting base fixedly mounted in the middle of the crossbeam, and a flotation column fixedly mounted in the middle of the fixed mounting base. A rotating shaft is movably mounted inside the flotation column via a bearing mounting base. The bottom end of the rotating shaft extends to the inner bottom of the frame and is fixedly mounted with an impeller. An annular movable frame is movably mounted at the bottom end of the flotation column via a bearing mounting base. A perforated air inlet hood is fixedly mounted at the bottom end of the annular movable frame. A sleeve is also movably mounted inside the flotation column via a bearing mounting base. This invention improves the capture capacity and separation accuracy of fine-grained minerals, reduces impurities, ensures stable and controllable operation, low energy consumption, extends equipment life, and guarantees efficient and continuous mineral processing through uniform aeration, bubble refinement, composite flow field, and vibration synergistic design.

The utility model provides a kind of sprocket with high heat dissipation performance, including first gear, second gear and the chain responsible for transmission between first gear and second gear, the sprocket with high heat dissipation performance further include heat conducting band and secondary pulley, vertical extension fin is provided on each tooth of the first gear, heat conducting band is wound on fin and secondary pulley, heat conducting band is responsible for transmission between fin and secondary pulley.Further, the secondary pulley is arranged on the second gear.Further, the fin is L-shaped fin or fan impeller-shaped fin.Further, the fin is fixed on the first gear by bolt.The utility model provides a kind of sprocket with high heat dissipation performance, on the one hand, play heat dissipation effect, on the other hand, thermal stress is transferred to fin, not only can better gear heat dissipation, can also reduce the thermal stress borne by gear, prolong the service life of gear.

The utility model belongs to mechanical accessory production technical field, concretely relates to a turnover mechanism for mechanical accessory production, including device main body, one side fixed connection of device main body has overturning motor, the output fixed connection of overturning motor has clamp, and the clamp includes the opening and closing subassembly of fixed connection on overturning motor, two opposite arc -shaped supports are fixedly connected on opening and closing subassembly, three autorotation rollers are fixedly connected on two arc -shaped supports, autorotation roller includes the U -shaped frame of fixed connection on arc -shaped support, the inside rotation of U -shaped frame is connected with round roller, the downside fixed connection of U -shaped frame has and round roller transmission connection's stepping motor, and opening and closing subassembly includes the transverse plate of fixed connection on overturning motor output, two sliding frames are slidably connected on transverse plate, and two sliding frames are fixedly connected with two arc -shaped supports respectively. The utility model can effectively expose each position of impeller, and the processing of impeller is convenient.