6180 results about "Suction force" patented technology

The invention relates to the technical field of grabbing manipulators, and discloses a self-adaptive grabbing device for a special-shaped curved surface workpiece, which comprises a central bearing base made of a light metal material and provided with a multifunctional quick connector at the top; the central adsorption module is fixed at the central position of the bottom of the central bearing base and comprises an air pressure balance pipeline communicated with an external air source; by means of radial adjustment of the cross shaft and cooperation of the elastic buffering structure and the vertical guiding assembly, high-precision centering and stable adsorption are achieved, vertical contact of the suction cup is ensured through vertical guiding, the suction cup is suitable for different curved surface radians, and the stable adsorption force under the small area is kept; and electric control connection supports installation, namely electrification, and is suitable for automatic precise grabbing.

The invention discloses an insertion part, an endoscope and a negative pressure suction assembly, and relates to the technical field of medical instruments, the insertion part comprises a first section and a second section, the first section is provided with a front end assembly, and the first section is further provided with a first channel. The insertion part can be inserted into the sheath tube, and a fluid cavity channel is formed between the sheath tube and the insertion part. The blocking area of the first section can be matched with the inner wall of the sheathing canal so as to block a fluid cavity channel between the sheathing canal and the insertion part. Negative pressure suction force is formed in the fluid cavity channel through an external suction device and the like. As the blocking area blocks the fluid cavity channel, the negative pressure suction force can be transmitted to the first opening or the second opening and then extends to the position near the far end of the insertion part through the first channel. Negative pressure suction force in the sheath tube can be transmitted to the distal end of the negative pressure suction fitting to extend the suction range of the introducer sheath to the distal end of the insertion portion. Therefore, stone fragments in the deep position of the affected part can be sucked out, stone fragment residues are avoided, and the using effect is improved.

The invention discloses an industrial part carrying control method and system based on dynamic path planning, and relates to the technical field of industrial equipment control, and the technical scheme is characterized in that an initial path satisfying suction constraint and joint torque limitation is generated by using a path planning algorithm and quadratic programming; the method comprises the following steps: acquiring three-dimensional coordinates of an obstacle, a part inclination angle and joint torque data in real time through a fusion sensor to perform local deformation adjustment on a path, constructing a multi-objective optimization function, and dynamically balancing an obstacle avoidance distance to obtain an optimal carrying path on the premise of ensuring a certain coincidence degree with an initial path; feedforward torque compensation is carried out according to the optimal carrying path, and compliant adjustment of the contact force is achieved in combination with impedance control. According to the technical system, the path re-planning efficiency of the system in a dynamic environment is improved, the joint torque fluctuation is reduced, and the part damage rate is reduced.

A method for capturing dislodged vegetative growth during a surgical procedure is provided. The method includes maneuvering, into a circulatory system, a first cannula having a distal end and an opposing proximal end, such that the first cannula is positioned to capture the vegetative growth en bloc. A second cannula is positioned in fluid communication with the first cannula, such that a distal end of the second cannula is situated in spaced relation to the distal end of the first cannula. A suction force is provided through the distal end of the first cannula so as to capture the vegetative growth. Fluid removed by the suction force is reinfused through the distal end of the second cannula. Subsequent to becoming dislodged, the vegetative growth is captured by the first cannula. A method for capturing a vegetative growth during removal of a pacemaker lead is also provided.

A numerical-control intelligent air-suction seed metering device, comprising a front shell 1, a rear shell 2, a seed metering disc 3, a built-in fan, a direct drive motor, and an individual seed metering unit intelligent controller 180, wherein a seed inlet 11, a seed outlet 12, and air inlets 13 are formed in the front shell, and the built-in fan is provided on the rear shell; seed suctioning holes 31 are formed in the seed metering disc, a seed filling chamber 7 is formed between the seed metering disc and the front shell, and a negative pressure chamber 8 is formed between the seed metering disc and the built-in fan; the seed metering disc is connected to a drive idler wheel 6; the direct drive motor comprises a stator core 5 and a plurality of magnetic steels 61, the stator core is fixed on the outer wall surface of a fixed drum, and the plurality of magnetic steels are fixed onto the drive idler wheel. In the technical solution, a built-in motor is used to directly drive the seed metering device, so that the seed metering device operates more stably and precisely; the speed of the built-in fan can be adjusted in real time by means of the individual seed metering unit intelligent controller on the basis of seeding requirements and crop types, so as to achieve a negative pressure suction force most suitable for the seed metering device, implement adjustment of the precision seeding rate of an individual seed metering device, and achieve the purpose of improving seeding precision.

A method of repairing a pipe includes providing a pipe repair device, the pipe repair device comprising a spring and a gasket, the gasket defining a gasket top end, a gasket bottom end, and a gasket outer surface, wherein the gasket outer surface defines a plurality of raised ridges and recessed dimples; biasing the pipe repair device to an expanded configuration with the spring inside of the pipe; engaging the raised ridges of the gasket outer surface with an inner wall of the pipe; and creating a suction force between each of the recessed dimples and the inner wall of the pipe to retain the pipe repair device against the inner wall.

The invention discloses a core shooter with a quick mold changing structure and a matched core box, and relates to the technical field of mold manufacturing. A core shooter movable plate is provided with a seam allowance groove and an electromagnetic coil, a core box upper mold is provided with a seam allowance boss with a permanent magnet, and three-stage magnetic coupling control is achieved through a control system, specifically, during mold closing, homopolar repulsive force guiding is conducted to avoid collision, during positioning, heteropolar attraction force locking is conducted, and during mold changing, homopolar repulsive force pushing separation is conducted. And three-dimensional accurate positioning and mechanical redundancy locking are formed by a clamping jaw clamping mechanism driven by a double-acting oil cylinder under the assistance of taper fit of right-angle limiting grooves in the four corners of the supporting plate and positioning blocks of the fixing plate. Through magnetic coupling automatic guiding and mechanical cooperative clamping, the mold changing time is shortened to be within 2 minutes from 30-40 minutes, single-person operation is achieved, the positioning precision and the vibration resistance are improved, the labor intensity is remarkably reduced, and the mold changing device is suitable for efficient and continuous production in the casting industry.

The invention discloses stamping and shaping equipment for mobile phone hardware machining, and relates to the technical field of hardware stamping, the stamping and shaping equipment comprises stamping equipment, a stamping module is mounted on the surface of the stamping equipment, a stamping table is mounted below the stamping module, and a pneumatic locking assembly is arranged in the stamping table; the pneumatic locking assembly comprises an adsorption barrel, a main conveying pipe and a branch pipe, when the stamping module moves downwards, the main conveying pipe and the branch pipe are both in an open state, stamping parts are locked through suction force generated in the adsorption barrel, and the pneumatic locking device is particularly suitable for thin stamping parts such as mobile phone hardware back plates. It is ensured that stable locking is achieved before stamping force is applied, machining errors caused by small displacement of a stamping part in the initial stage of stamping are reduced, the precision of key sizes such as hole positions and radian is improved, slippage caused by insufficient locking force during stamping or stamping part damage caused by too large locking force is avoided, and a stable foundation is provided for subsequent precise stamping.

An end effector for a picking robot, and a method of use, the end effector comprising: a body; a shaft slidably coupled to the body and extending along a longitudinal axis between a proximal end and a distal end, the shaft having a vacuum lumen extending therethrough along the longitudinal axis; a suction cup coupled to the distal end of the shaft such that an interior volume of the suction cup is in fluid communication with the vacuum lumen; a vacuum generator connected to the vacuum lumen at the proximal end of the shaft and configured to create suction therethrough; and a linear actuator configured to slide the shaft along the longitudinal axis between an extended position in which the suction cup is relatively farther from the body and a retracted position in which the suction cup is relatively closer to the body.

The embodiment of the utility model provides a handheld breast pump, and relates to the field of pregnant and baby products. The handheld breast pump comprises a flexible tee joint, a rear cover, a negative pressure source and a milk storage container. Wherein the flexible tee joint comprises a breast cover, a suction bowl and a guide cylinder, the suction bowl is connected to the breast cover, a front cavity is formed between the suction bowl and the breast, a rear cavity is formed between the suction bowl and the rear cover, the negative pressure source is communicated with the rear cavity through the rear cover, and the front cavity, the guide cylinder and the milk storage container are sequentially communicated from top to bottom; the breast cover, the suction bowl and the guide cylinder are integrally formed; the negative pressure source is used for driving the suction bowl to deform, so that the front cavity generates negative pressure to suck out the emulsion, and the emulsion moves towards the milk storage container under the action of gravity. According to the handheld breast pump, the breast cover, the suction bowl and the guide cylinder can be integrally formed into the flexible tee joint, the number of parts is reduced through structural optimization, and on the premise of facilitating breast pumping operation, disassembly is convenient, so that the convenience of cleaning operation is improved.

A pet toy and method for occupying a pet. In one embodiment, the pet toy comprises a cylindrical main body member including a top end having a top wall, a bottom end opposite the top end that is open, and an annular side wall between the top end and the bottom end. The pet toy further comprises a core member configured to insert into the bottom end of the cylindrical main body member, and having a treat container configured to contain a pet treat. The top wall of the cylindrical main body member includes a treat access hole facing toward the treat container when the core member is inserted into the cylindrical main body member, and further includes one or more vents that serve multiple functions including relieving suction forces during use and redirecting saliva into the pet toy to prevent unwanted mess.

The invention belongs to the technical field of cutting machine tools, and particularly relates to equipment for laser cutting, in particular to laser cutting equipment and a cutting process. The laser cutting equipment comprises a working platform and a laser cutting device, a driving mechanism; a bearing tray; and a laser cutting mechanism. The first negative pressure adsorption pipeline is arranged at the bottom of the box body, during laser cutting, smoke dust caused by cutting is directly sucked from the bottom of a material plate, the amount of the smoke dust upwelling to a laser light path is reduced, the total amount of the smoke dust attached to a lens is reduced, and the lens is prevented from being overheated; only the air inlet hole and the air outlet hole corresponding to the to-be-cut area are exposed, so that the negative pressure adsorption force acts on the real-time machining area in a concentrated mode, the negative pressure suction force is concentrated to the cutting area, the smoke dust adsorption effect is improved, the amount of smoke dust upwelling to a laser light path is further reduced, and the lens is prevented from being overheated.

The invention discloses a magnetic adjustment water lubricated bearing and a bearing support control method, which are applied to a large ship propulsion shaft system, and comprise a bearing shell, an electromagnetic excitation module, a batten, a sensor module, a power supply driving module and a control system, a plurality of mounting grooves are formed in the bearing shell; an electromagnetic excitation module is arranged in each mounting groove and generates a variable magnetic field with set intensity; a plurality of magnetically soft alloy segments are arranged on the batten, the magnetically soft alloy segments correspond to the electromagnetic excitation modules one to one, and a magnetic field acts on the magnetically soft alloy segments to generate electromagnetic attraction force; the control system independently controls the excitation current of each electromagnetic excitation module according to data of the sensor module, and generates magnetic fields with different intensities to act on soft magnetic alloy areas at corresponding positions, so that precise control of local supporting rigidity and lubricating gaps of the water-lubricated bearing is realized, unbalance loading and abnormal wear risks are effectively reduced, and the service life of the water-lubricated bearing is prolonged. And the adaptive capacity of the bearing under low-speed heavy load and dynamic disturbance is improved.

The utility model provides a cleaning assembly and cleaning equipment, and relates to the technical field of cleaning equipment. The cleaning assembly comprises a shell, a shielding piece and a driving mechanism. A dust collection cavity is formed in the shell, and an opening is formed in the bottom of the dust collection cavity; the shielding piece is movably installed on the shell and provided with a first position and a second position, and the shielding piece covers part of the opening when located at the first position so that the ventilation area of the opening can be smaller than the ventilation area of the shielding piece when located at the second position; the driving mechanism drives the shielding piece to move between the first position and the second position. The position of the shielding piece is adjusted according to the needs of scenes, then the air inlet area of the opening is changed, the suction force of the opening is adjusted, the dirt cleaning needs in various scenes are met, and the cleaning effect is improved.

The speed-adjustable negative pressure drainage device comprises a drainage tube, a bottle body, a cover body and a negative pressure source connector, the cover body is rotated to drive a top ring cambered surface protrusion to jack up a bead body, a through hole is opened according to the angle gradient, external air enters dilution negative pressure, and linear speed regulation without negative pressure source adjustment is achieved; the bead body periodically opens and closes the through holes to form pulsating type instantaneous suction force, so that the adhesive force between blood clots and the tube wall is destroyed, and blockage is actively prevented; the gradient section of the drainage tube accelerates liquid flow through abrupt drop to generate local negative pressure to pull rear liquid flow; the upper convex hulls enlarge the sectional area of a pipe cavity before sharp drop, decelerate liquid flow and form a vortex region, so that blood clots are separated and deposited due to inertia, and liquid-solid layering is realized; the device has the functions of mechanical blockage prevention, precise pressure control and overload protection, the clinical blockage rate is reduced from 30% to 5% or below, power support is not needed, the device is suitable for postoperative drainage scenes such as the abdominal cavity and the thoracic cavity, and the medical operation load and the complication risk of a patient are remarkably reduced.

The utility model provides a self-propelled silage reclaimer, which relates to the technical field of reclaimers, and comprises a self-propelled silage reclaimer assembly, the self-propelled silage reclaimer assembly is provided with a dust collection assembly and an adjusting assembly, the self-propelled silage reclaimer assembly comprises a cutting reclaiming knife and a conveying belt, the dust collection assembly comprises a dust collection cover, and the dust collection cover is provided with a dust collection opening. And one end of the dust hood is connected with a conveying hose. The suction fan works to generate suction force, so that the dust hood sucks and removes flying dust generated during cutting and material taking, the sucked and removed dust and the like are conveyed to the collecting box through the conveying hose, the filter element is beneficial to preventing the dust and the like from entering the suction fan, and normal operation of the suction fan is guaranteed; and finally, the movable sealing plate moves in the sliding groove, so that the sucked dust and the like can be cleaned, the dust spreading in the working area is reduced, the dust attached to the surface of the machine is reduced, and an operator can more clearly observe the running state of each part of the machine.

The invention discloses a high-bearing-capacity offshore wind power pile foundation structure and a construction method thereof. The high-bearing-capacity offshore wind power pile foundation structure comprises a suction bucket, a vertical rod installed in an inner cavity of the suction bucket and coaxially fixed to the suction bucket, a stabilizing assembly dividing the inner space of the suction bucket into a plurality of independent cavities and a leveling assembly. By arranging the stabilizing assembly and the leveling assembly, the suction bucket is divided into a plurality of independent cavities through the stabilizing assembly, differential pressure leveling is conducted in a multi-cavity independent water pumping mode in the stage of preliminary contact with the seabed, the perpendicularity of the suction bucket in contact with the seabed is guaranteed, and in the stage of downward insertion of the bucket body part, a high-pressure nozzle is started again to conduct secondary posture fine adjustment; according to the dynamic deviation correcting device, the dynamic deviation correcting capacity is achieved in different time periods in the penetration process, the dynamic deviation correcting device can adapt to uneven local hardness of a seabed or slight drifting of the posture of a barrel body in the downward insertion process, inclined insertion and penetration failure caused by posture unbalance of the suction barrel are avoided, and the vertical bearing performance and the anti-overturning stability of a pile foundation are further enhanced.

The invention belongs to the technical field of electronic parts, and provides a damping-adjustable roller structure and a damping adjusting method. The first annular shaft is fixed to the mounting base, and a plurality of first bosses are evenly arranged on the end face of the first annular shaft; the second annular shaft is rotationally arranged on the mounting base, the second annular shaft and the first annular shaft are coaxially arranged, and second bosses are evenly arranged on the surface of the end, facing the first boss, of the second annular shaft; the first annular shaft is provided with a magnetic field coil, the magnetic field coil is used for adjusting the magnetic intensity of the first annular shaft, gaps are formed between the first bosses and the second bosses, and the first bosses and the second bosses are arranged in a one-to-one correspondence mode. The magnetic field intensity of the first annular shaft is changed by adjusting the current magnitude and direction of the magnetic field coil, so that the magnetic attraction force between the first boss and the second boss is adjusted, and the damping is adjustable when the second annular shaft rotates. Meanwhile, the magnetic field coil can convert kinetic energy of the second annular shaft into electric energy to achieve the technical effect of electric energy collection.

Provided are a cleaning device and a cleaning system, relating to the technical field of electric devices. A cleaning device (10) comprises: a fan assembly (100), wherein the fan assembly (100) provides a suction force for the cleaning device, and the fan assembly (100) is provided with a second air outlet; an air duct (410); and a first air outlet (430) and a first air inlet (420) communicated with the air duct (410), wherein the first air inlet (420) is communicated with the second air outlet (114) of the fan assembly (100), and a silencer (500) is provided in the air duct (410) so as to reduce noise. The silencer (500) is provided in the air duct (410), such that the noise can be reduced as the noise passes through the silencer (500) along with airflow, and the noise diffused to the outside can be reduced, thereby achieving a noise reduction effect.

A system and method to provide a suction device adapted to provide gripping and suction forces to pick up and move a wide variety of objects. This is accomplished through a primary grasping interface composed of a suction compartment, a membrane compartment, deformable membrane sealing said membrane compartment, and at least one pressure mechanism. At least one pressure mechanism is in fluid connection with the suction compartment and is configured to modify properties within the suction compartment to assist in providing gripping and attractive forces. The device will grasp an object with the primary grasping interface by positioning the deformable membrane adjacent to said object, modifying the deformable membrane to conform to and create a seal with said object, and then depressurizing the suction compartment vis the pressure mechanism, providing a suction force onto said object within that sealed area sufficient to grasp said object.

The invention discloses a thickness laser measuring device for corrugated paper packaging box production and a method thereof, and relates to the technical field of laser thickness measuring devices. The concave-convex part of the corrugated board can be extruded through rolling of an air bag of the measurement pretreatment mechanism, flattening is achieved, meanwhile, high-speed airflow generated by an air cylinder purges paper scraps on the surface through air inlet and outlet holes, suction force generated when a piston is reset subsequently can suck the residual paper scraps into a detachable dust collection cylinder, the paper scraps are prevented from blocking a laser light path, and measurement errors are reduced from the source; secondly, in the laser thickness measuring mechanism, a first laser thickness measuring assembly and a second laser thickness measuring assembly move in opposite directions and are matched with the movement of the paperboard along with the conveying belt, measuring point positions in a larger range on the surface of the paperboard can be covered, the contingency of single-point measurement is avoided, a touch switch of a laser thickness gauge can be triggered and starts to work only after the preprocessing mechanism completes the purging action, and the accuracy of measurement is improved. The problem that paper scraps raised during purging interfere with a light path is thoroughly avoided, and the data validity is further guaranteed.

A cleaning device includes a station, and a robot cleaner movable to a first position on the station and a second position on the station. The robot cleaner includes a mop, a dust bin, and a dust outlet. The station includes a washing chamber configured to, with the robot cleaner being at the first position on the station, wash the mop, a dust inlet spaced away from the washing chamber, and a suction motor configured to, with the robot cleaner being at the second position on the station, provide a suction force so that dust is suctioned out of the dust bin through the dust outlet and the dust inlet.

The utility model discloses an assembly type large pipeline assembly clamping platform, which relates to the technical field of pipeline processing, and comprises a cabin and a first bracket, one side of the first bracket is connected with a second bracket through a torsion spring shaft, the top of the second bracket is connected with a propping wheel, and electromagnets are arranged at the lower parts in the first bracket and the second bracket. Through the arrangement of the second support, the torsion spring shaft, the abutting wheel, the rapping bar, the spring and the electromagnet, welding work is started at the top of the flange plate, the flange plate is driven by the three-jaw chuck to rotate, welding slag rotates to the bottom of the flange plate, at the moment, the electromagnet is started and stopped in a reciprocating mode, and magnetic attraction force is generated after the electromagnet is started to drive the rapping bar to move downwards and compress the spring; after the electromagnet is closed, the rapping bar is bounced by the spring, so that the rapping bar impacts the welding slag, and the welding slag is knocked off; the welding slag can be conveniently and automatically removed, so that the welding slag can be knocked off by workers without rotating the three-jaw chuck for multiple times, the assembly efficiency is improved, and the labor of the workers is reduced.

The invention relates to an automobile windshield shelter removing method and system and an automobile, and belongs to the technical field of automobile active safety. The method comprises the steps that the surface of the windshield is monitored through a vehicle-mounted camera; when a shielding object is identified, calculating a view shielding coefficient based on the area, the position, the light transmittance and the type of the shielding object, and determining an initial influence level according to the view shielding coefficient; corresponding cleaning strategies are executed according to the influence levels, windscreen wiper cleaning is started at the low level, pneumatic suction generated by vehicle intersection is used for cleaning at the middle level, and negative-pressure airflow cleaning is induced through dynamic opening of a skylight at the high level; if the shielding is not removed, the influence level is increased step by step, and circulation execution is carried out until the shielding is removed or automatic parking is triggered. According to the method, grading, closed-loop and non-contact intelligent removal of different types of sheltering objects is achieved, and invalid or even harmful operation of a traditional windscreen wiper in a dry sheltering scene is effectively avoided.

The invention relates to the technical field of bearing measurement, and discloses a multifunctional measuring instrument for comprehensive precision of a rolling bearing. The driving device is mounted on the working platform and comprises a load block capable of axially moving and a motor assembly for driving the load block to rotate; the measuring device comprises a high-precision inductance measuring head for detecting the runout of the bearing to be measured and a pressure sensor for monitoring an axial load; the fixing device is a replaceable mandrel base and is used for supporting an inner ring or an outer ring of the bearing to be detected; wherein the driving device applies an axial load to an inner ring or an outer ring of a to-be-measured bearing through the load block and drives the to-be-measured bearing to rotate, the measuring device synchronously collects bounce and load data of the to-be-measured bearing, the brushless motor and the load block are connected through the magnetic coupling, and the centering error of the mechanical coupling is eliminated. Meanwhile, motor vibration is prevented from being transmitted to the to-be-tested bearing, the pushing force air floating shaft sleeve actively counteracts the magnetic attraction force, and the stability of the load applied to the to-be-tested bearing is remarkably improved.

The utility model relates to the technical field of underwater cleaning, in particular to an underwater cleaning robot which comprises a robot body, a cleaning assembly and a propeller, the robot body is composed of a lower shell and an upper cover, the lower shell is provided with a cavity, a dust washing opening is formed in the position, located on the outer side of the cleaning assembly, of the lower shell, and the propeller is arranged in the cavity. One end of the dust washing opening communicates with the cavity and is provided with a containing net cover, the propeller is arranged at one end of the lower shell, the air inlet end of the propeller communicates with the cavity and provides suction force for the dust washing opening, and the cleaning assembly is used for conveying underwater foreign matter towards the dust washing opening. The cleaning assembly and the dust washing opening work cooperatively, efficient directional conveying of underwater foreign matter is achieved, the cleaning efficiency is effectively improved, and the coverage range is effectively widened.

The invention relates to the technical field of rotary cultivators, in particular to a rotary cultivator with a residual film recycling function. Comprising a front wheel; first rotating shafts are fixedly connected to one sides of the two front wheels, second rotating shafts are fixedly connected to one sides of the two rear wheels, a recycling machine shell is jointly and rotationally connected between the two first rotating shafts and the two second rotating shafts, and a tillage machine is arranged on one side of the recycling machine shell. Through cooperation of a water pump, a second threaded rod, a spraying bin and a spray head, broken films on a screen mesh plate can be dissolved, soil blocks can be decomposed, the problem that a large amount of time is spent on sorting residual films and straw by workers in the follow-up process is solved, a first motor, an air pump, a second motor and the water pump are controlled through a controller, and the working efficiency is improved. Complex residual film recovery and soil treatment processes are integrated into a highly automatic and intelligent operation system, the soil humidity, the residual film density and the impurity content are monitored in real time through a sensor, the suction force of an air pump and the water pressure of a water pump are intelligently adjusted, and soil moisture loss and energy consumption are reduced to the maximum extent while it is ensured that residual films are efficiently recovered.

The invention relates to the technical field of axial flow fans, in particular to an impeller with S-shaped blades and an axial flow fan applying the impeller. On the axial projection of the impeller, the peripheral contour of each blade is defined by a blade root edge, a blade front edge, a blade outer edge and a blade rear edge, and the blade root edge is connected with the hub; the blade front edge and the blade rear edge are both wavy curves, and the blade root edge and the blade outer edge are both arc-shaped lines with the axis O of the hub as the circle center. Each blade is provided with a pressure face and a suction face, the pressure faces and the suction faces are oppositely arranged, and on the radial projection of the impeller, the pressure faces are arranged in a wave shape in a protruding mode from one end of the blade root edge to one end of the blade rear edge towards the suction faces and then concavely arranged, so that the blades are of an S-shaped structure. The problem that a traditional blade structure cannot meet the use requirements of high efficiency and low noise can be solved.

The axial self-balancing three-degree-of-freedom magnetic bearing is characterized in that a stator part comprises a stator yoke, a left attraction iron core, a right attraction iron core, a left repulsive iron core and a right repulsive iron core which are all mounted on an aluminum alloy bracket, and four poles wound with coils are uniformly distributed on the inner circumference of the stator yoke; an axial control winding is embedded in the attraction iron core, and a stator permanent magnet is embedded in the repulsive iron core. The rotor part comprises a rotor core and a rotating shaft, a radial air gap and an axial air gap are respectively arranged between the rotor core and the radial iron core, between the attraction iron core and the repulsive force iron core, rotor permanent magnets are arranged on two sides of the rotor core and at positions corresponding to the stator permanent magnets of the repulsive force iron core, and the polarities of the stator permanent magnets and the rotor permanent magnets facing the axial air gap are the same. The radial magnetic flux magnetic circuit, the axial control magnetic flux magnetic circuit and the permanent magnetic flux magnetic circuit are completely independent and free of coupling, axial static balance of the rotor is achieved, suspension is achieved in the radial direction, control is easy, and the controllable suspension force is large.

The invention relates to the technical field of laser dimension detection, and discloses a laser dimension detection device for water pump accessory production, which comprises dimension detection equipment, and the dimension detection equipment is provided with conveying equipment for assembling a plurality of impeller bodies. Meanwhile, under the mutual cooperation of a laser detection assembly and an angle self-adjusting assembly, under the suction effect of an air pump, two suction cup bodies separated from the blade can be tightly attached to the blade, and then under the suction effect of suction cups, a rubber ring fixed to a reset sliding barrel is tightly attached to the blade; according to a traditional detection method, when facing blades with different distortion angles, manual equipment adjustment, clamp replacement or multiple times of measurement are needed to obtain complete data, the operations are time-consuming and labor-consuming, measurement errors are caused by human factors, and the detection accuracy is high. And the laser size detection device automatically adapts to different distortion angles.