5results about How to "Improve torque performance" patented technology

The invention discloses a thrombus excision system. An embolus is extracted through a mechanical embolus extraction device, a blood vessel is dredged, and revascularization of the blood vessel is achieved. A saccule guide catheter is put at the near end of the embolus part when the embolus is extracted, blood flow is temporarily blocked, and thus a fine crushed embolus generated in the embolus extraction process is prevented from being flushed to the far end of the blood vessel; meanwhile, for a relatively large embolus, a part of thrombus can also be sucked by virtue of the saccule guide catheter, and then the residual thrombus can be extracted by virtue of a thrombus exsector. The thrombus exsector, the saccule guide catheter and a delivery microcatheter are arranged on the thrombus excision system disclosed by the invention, wherein the thrombus exsector is used as a main component, an excision spring is arranged, and the release state of the excision spring is a conical spiral state. Compared with the prior art, the thrombus excision system has the advantages that the thrombus exsector is very soft, the minimal through size is 0.014' (0.36mm), the thrombus exsector can easily enter a cerebral vessel, a near-end protection technology is adopted in the operation process, and thrombus suction is combined with mechanical embolus extraction, so that the success rate of the operation is improved, and the complications are reduced.

The utility model provides a combined highway subgrade gravel pile and relates to the technical field of CN214194485U. The combined highway subgrade gravel pile comprises a vibroflot main body and a flange, convex teeth are arranged on the surface of the vibroflot main body, the vibroflot main body and the convex teeth are connected in a welding mode, a centrifugal shaft main body is arranged at the bottom of the vibroflot main body, and the vibroflot main body and the centrifugal shaft main body are connected in a tight sliding mode. The spiral blades are arranged on the surface of the centrifugal shaft body, the centrifugal shaft body and the spiral blades are connected in a seamless welding mode, the six-edge plum blossom-shaped structure is adopted for the head of the guide rod, the vibroflotation blades are additionally arranged, and the spiral blades are arranged on the surface of the centrifugal shaft body, so that the comprehensive performance is improved, the adaptability is enhanced, and the centrifugal shaft is suitable for viscous or water-containing soil layers; the failure rate is reduced through structure optimization, efficient hole forming, continuous dumping and stable vibration are achieved through cooperation of the mechanical advantages of the six-edge structure, the crushing capacity of the vibroflotation blades and the dumping function of the spiral blades, and the six-edge vibroflotation machine is particularly suitable for engineering construction under the complex geological condition.

The present application belongs to the technical field of double three-phase magnetic type permanent magnet synchronous motor, in order to solve the problem of existing double three-phase magnetic type permanent magnet synchronous motor torque quantitative analysis limit, the double three-phase magnetic type permanent magnet synchronous motor torque quantitative analysis method and system are proposed, according to the double three-phase magnetic type permanent magnet synchronous motor stator side modulation function and permanent magnet initial magnetic motive force function model, the double three-phase magnetic type permanent magnet synchronous motor no-load air gap magnetic density is calculated;According to the double three-phase magnetic type permanent magnet synchronous motor rotor side modulation function model, stator side modulation function and armature magnetic motive force, the double three-phase magnetic type permanent magnet synchronous motor armature air gap magnetic density is calculated;According to the double three-phase magnetic type permanent magnet synchronous motor no-load air gap magnetic density and armature air gap magnetic density, the synthesized radial air gap magnetic density and tangential air gap magnetic density are determined, and then the contribution degree of harmonic to motor electromagnetic torque is quantified.

The utility model discloses a novel agricultural tire of anti -explosion bead structure design relates to tire technical field, including tire body, the bead in tire body is equipped with by single steel wire winding generation's big inclined bottom hexagonal bead, big inclined bottom hexagonal bead outside is equipped with the layer of reinforced rubber sheet, the layer of reinforced rubber sheet outside is equipped with inner wrapping cloth, the upper side of inner wrapping cloth is equipped with triangular rubber core, steel wire wrapping cloth is equipped in triangular rubber core and inner wrapping cloth outside still, the utility model discloses a single steel wire winding's big inclined bottom hexagonal bead and the layer of reinforced rubber sheet, promote the strength of bead, increase the contact area with the rim, optimize stress distribution, enhance steel wire adhesion, reduce the heat of friction, thereby prevent the bead crack and steel wire to stick out, have excellent anti -bead twist effect simultaneously, can effectively improve the hoop pressure between bead and rim, avoid the slip between bead and rim.

The application relates to the motor technical field and discloses a flat wire short-pitch wave winding structure, which comprises a three-phase flat wire winding structure embedded in a plurality of stator slots of a permanent magnet motor stator; the three-phase flat wire winding structure comprises U, V and W three-phase winding structures; each stator slot has 2r (r belongs to N*) layers of flat copper conductors; each branch of each phase of the U, V and W three phases comprises r parts; for the flat copper conductor coils of the first part to the rth part, there is 1 slot misplacement between the stator slots where the adjacent flat copper conductor coils are located; the flat wire short-pitch wave winding structure realizes the short-pitch effect.