8results about How to "Wide speed range" patented technology

This invention provides a cup assembly for a food processor, including a cup body, a cup lid, and a processing component disposed within the cup body. It also includes a gearbox, which comprises a movably disposed clutch output shaft. When the clutch output shaft moves to a first position, it drives the processing component to output a first rotational speed; when the clutch output shaft moves to a second position, it drives the processing component to output a second rotational speed. The cup lid is installed in place, maintaining the clutch output shaft in either the first or second position. Furthermore, a food processor with the aforementioned cup assembly is provided. In the first position, the clutch output shaft outputs a first rotational speed to adapt to multi-functional cooking; in the second position, it outputs a second rotational speed to adapt to another multi-functional cooking method requiring a different speed. By changing the position of the clutch output shaft, the processing component can be replaced and the rotational speed can be automatically switched. Moreover, the output speed range is wide and the torque is high, avoiding stalling caused by high processing resistance.

This invention relates to the field of permanent magnet motor technology, and more particularly to a dual-rotor hybrid excitation flux-switching permanent magnet motor with double-C staggered tooth and leakage flux control. It includes an outer rotor, a middle stator, and an inner rotor, with the middle stator positioned between the outer and inner rotors. The outer rotor has a plurality of first salient poles evenly distributed, and the inner rotor has a plurality of second salient poles evenly distributed. The middle stator includes m double-C staggered tooth iron cores, m rectangular leakage magnet cores, n tangentially magnetized Type I permanent magnets, an armature winding, a first set of excitation windings, and a second set of excitation windings. This invention not only retains the advantages of a compact structure and high efficiency of a dual-rotor flux-switching permanent magnet motor, but also, through the addition of the electrically excited excitation windings, makes the air gap magnetic field smooth and adjustable, effectively solving the problem of magnetic field coupling when the inner and outer motors work simultaneously. This also broadens the speed regulation range when the inner and outer motors work individually to a certain extent. Furthermore, the addition of leakage magnet cores solves the problem of strong permanent magnet magnetomotive force and difficulty in weakening the magnetomotive force.

This utility model discloses an automatic ink printing proofing machine, including a frame assembly. A scraping platform is provided on the top of the frame assembly, and a scraping component is provided on the top of the scraping platform. The scraping component consists of a scraper assembly, two clamping components, two scraper Z-axis adjusting components, two rubber roller Z-axis adjusting components, and a rubber roller assembly. The rubber roller assembly is located on one side of the scraper assembly. The two scraper Z-axis adjusting components are located on the front and rear sides of the scraper assembly, respectively. The two rubber roller Z-axis adjusting components are located on the front and rear sides of the rubber roller Z-axis adjusting component, respectively. A drive assembly is provided inside the frame assembly. The drive assembly consists of a motor assembly, a synchronous pulley, and a synchronous belt. The motor assembly is installed inside the frame assembly, and a synchronous pulley is installed at the power output end of the motor assembly. A synchronous belt is connected to the outer side of the synchronous pulley, and guide rods are provided above and below the synchronous belt.

The invention relates to a milling machine spindle dynamic balance testing device, which relates to the field of mechanical balance testing, and comprises a magneto-rheological damper array arranged around a spindle, a sensing assembly used for collecting multi-source vibration signals, a double-closed-loop control mechanism and a chuck assembly, the magneto-rheological damper array comprises a plurality of damping units which are evenly distributed in the circumferential direction of the main shaft, an acute included angle is formed between the force application direction of each damping unit and the axis of the main shaft, and the sensing assembly comprises an axial acceleration sensor located on the end face of the main shaft and a plurality of radial acceleration sensors distributed in the axis direction of the main shaft. The double-closed-loop control mechanism comprises an inner ring damping control unit and an outer ring counterweight decision-making unit, and the chuck assembly is matched with the main shaft positioning conical surface. The method and the device have the effects of realizing active suppression of high-frequency vibration and rapid identification of the unbalance amount.

The application discloses a multi-excitation-source partition-level variable-pole type axial magnetic field permanent magnet motor and a variable working condition driving control system, mainly comprising two parts of a main magnetic pole and an auxiliary magnetic pole, wherein the main magnetic pole is responsible for providing a main magnetic flux of an air gap and is connected in series with a double-stator magnetic circuit; the auxiliary magnetic pole is responsible for adjusting an air gap magnetic field and is connected in parallel with the double-stator magnetic circuit; the main magnetic pole and the auxiliary magnetic pole magnetic flux jointly constitute the air gap magnetic field, and the magnetic flux path of the auxiliary magnetic pole can be controlled by controlling the current size added to the excitation winding, thereby adjusting the air gap magnetic flux, widening the motor speed regulation range, realizing the multi-variable working condition operation of the motor, and further reducing the torque ripple, improving the power density, realizing the high-efficiency and high-reliability operation of the motor, and improving the dynamic working performance of the motor.

This invention discloses a multi-stage speed-regulating drilling hydraulic system, comprising a hydraulic pump, a multi-way valve, a series-parallel control valve group, a first hydraulic motor, a second hydraulic motor, and a rotary power head. The hydraulic pump is connected to the series-parallel control valve group via the multi-way valve. The series-parallel control valve group is connected to the first and second hydraulic motors to drive them to rotate and can adjust the series-parallel connection status of the first and second hydraulic motors. The output shafts of the first and second hydraulic motors are connected to the input end of the rotary power head. The output end of the rotary power head is connected to the drill rod to drive it to rotate and can be speed-regulated in multiple stages. The system features fast control response, high precision, and no energy loss during speed regulation. Based on the characteristics of the rock strata, the drilling rig can adaptively adjust the rotational speed of the rotary power head's output shaft, improving drilling efficiency and reducing overall operating costs. This invention also discloses a drilling rig and control method incorporating the above-mentioned multi-stage speed-regulating drilling hydraulic system.

This invention relates to the field of biomass silo technology, providing a planetary spiral-rotating circular cone-bottom biomass silo, comprising an outer wall, a collection hopper fixedly connected to the middle of the inner wall of the outer wall, a rotating ring rotatably connected to the lower end of the collection hopper, a tray fixedly connected to the lower end of the inner wall of the outer wall, a discharge pipe rotatably connected to the middle of the tray, the lower end of the rotating ring rotatably connected to the upper side of the tray, a fixing ring fixedly connected to the upper outer periphery of the tray, and annular rails fixedly connected to the upper inner and outer periphery of the fixing ring. By employing a planetary spiral-rotating composite motion mechanism, the spiral blades revolve around the center of the silo while continuously rotating at high speed around their own axis, forming a three-dimensional mixing and pushing effect with all-round, dead-angle-free action. This actively eliminates problems such as bridging, arching, and caking that easily occur in biomass raw materials due to their viscosity and high moisture content, preventing discharge blockage and achieving long-term continuous, uniform, and stable quantitative discharge.

The application relates to a few-pole built-in rotor axial flux permanent magnet motor, which comprises a rotor, a stator and a rotating shaft, the rotor is fixed on the rotating shaft, the stator comprises a first stator and a second stator, the first stator and the second stator are symmetrically arranged on the two sides of the rotor, and the rotor and the rotating shaft rotate relative to the stator; the rotor is composed of a rotor frame, permanent magnets, pole shoes and pressing blocks, a pair of pole shoes cover a plurality of permanent magnets, the pole shoes are symmetrically arranged on the two sides of the permanent magnets, the pressing blocks are pressed on the two adjacent pole shoes, and the pole shoes and the rotor frame of the rotor are connected through a mortise and tenon structure. The application solves the problems of the insufficient strength and reliability of the existing high-speed few-pole double-stator inner rotor axial flux permanent magnet motor, the large eddy current loss of the permanent magnet and the small weak magnetic speed regulation range of the motor.