5results about How to "Improve demagnetization effect" patented technology

The utility model discloses a stator punching sheet, a stator core, a motor and refrigeration equipment, and relates to the refrigeration equipment technology field, the stator punching sheet comprises a plurality of punching sheet units, the plurality of punching sheet units are sequentially connected end to end in an annular shape to form the stator punching sheet, each punching sheet unit comprises a stator yoke, stator teeth and tooth boots, and the tooth boots are arranged on the stator yoke. The stator teeth are connected to the stator yokes, the tooth boots are connected to the ends, deviating from the stator yokes, of the stator teeth, the stator teeth are located on the inner circumferential wall of the stator punching sheet, the distance between the outer walls of any two oppositely-arranged stator yokes is D1, the minimum distance between any two oppositely-arranged tooth boots is D2, and D1 is larger than D2. The width of the stator teeth is W1, and the width of the stator yoke is h0. According to the technical scheme provided by the utility model, the overload capacity of the motor is improved, the demagnetization performance of the motor is reduced, the output performance of the motor is improved, and the production and manufacturing cost of the stator punching sheet is reduced.

The utility model provides a kind of powder automatic circulation demagnetization equipment and system. Due to the setting of cleaning magnet bar, and the cleaning magnet bar permanent magnet segment has magnetism and is located in the blanking pipe, therefore, in the process of powder conveying downward, part of powder with magnetism is adsorbed by cleaning magnet bar, so that powder can be demagnetized, the setting of multilayer cleaning assembly can increase the demagnetization effect of powder. Cleaning magnet bar moves relative to cleaning ring, and the permanent magnet segment of cleaning magnet bar moves from blanking pipe to waste pipe. When cleaning magnet bar continues to move left, the permanent magnet segment moves relative to cleaning ring. Cleaning ring limits and blocks the powder on the permanent magnet segment from moving with cleaning magnet bar, until the non-magnetic segment on the right side of cleaning magnet bar enters the waste pipe, the powder is no longer adsorbed by cleaning magnet bar, so as to fall downward, and then discharge from waste outlet, so the demagnetization efficiency and quality of powder can be quickly improved.

The utility model relates to a demagnetizer with an internal spiral blade, which comprises a demagnetizer pipe body, a demagnetizing coil arranged outside the demagnetizer pipe body and connecting flanges arranged at two ends of the demagnetizer pipe body, and is characterized in that the internal spiral blade is arranged in the demagnetizer pipe body. The demagnetizer disclosed by the utility model has the advantages that ore pulp flows through the demagnetizer pipe body, a variable demagnetizing magnetic field is generated under the action of the coil, and iron ore particles in the ore pulp are demagnetized under the action of the demagnetizing magnetic field. The inner spiral blade arranged in the demagnetizer pipe body prolongs the route length of ore pulp flowing through the demagnetizing coil, so that the ore pulp can obtain longer demagnetizing time, the demagnetizing effect is improved, meanwhile, the ore pulp flows through the spiral blade in the demagnetizing coil, disturbance to the ore pulp is intensified, and magnetic agglomeration in the ore pulp is dispersed more easily.

The utility model discloses an on-line automatic residual magnetism detection mechanism, which relates to the technical field of residual magnetism detection mechanisms and comprises a mounting plate, the top end of the mounting plate is fixedly connected with a rack, the top end of the rack is fixedly connected with a guide rail, the top of the guide rail is slidably connected with a sliding block, and the top end of the sliding block is fixedly connected with a mounting frame. One side of the guide rail is fixedly connected with a translation air cylinder, and the output end of the translation air cylinder is fixedly connected with the sliding block. According to the utility model, through cooperative work of the gauss meter and the demagnetization device, the counting scheme avoids many defects of traditional manual demagnetization, such as low measurement precision, low efficiency, great environmental influence, poor repeatability and the like; the demagnetization effect is optimized through the extension rod, especially on a workpiece with a small L / D value, the demagnetization effect is remarkably improved, the influence of a demagnetization field is reduced, the automatic detection mode not only improves the detection efficiency and precision, but also enhances the objectivity and reliability of detection, and the device is suitable for large-scale production and high-precision detection requirements.

The application relates to a step coupling demagnetization device and a control method, the step coupling demagnetization device comprising a control end, a magnetic force monitor, a demagnetization pipeline and excitation coils, the demagnetization pipeline is provided with a slurry inlet and a slurry outlet, the number of the excitation coils is two or more than two, and each excitation coil is arranged in the demagnetization pipeline in sequence along the slurry flow direction, and the control end is connected with the magnetic force monitor and the excitation coils; the control end is used for outputting excitation currents to excite each excitation coil, generating a periodic oscillation decay magnetic field, forming a demagnetization area with a magnetic field strength gradually decreasing along the slurry flow direction; the slurry enters the demagnetization pipeline through the slurry inlet, is demagnetized and then flows out through the slurry outlet; the magnetic force monitor is used for magnetically detecting the slurry in each demagnetization area and feeding back an electric signal to the control end, and the control end further adjusts the output excitation current according to the electric signal, so that the slurry magnetism in each demagnetization area is maintained in a corresponding preset range, and the demagnetization effect is improved.