70mm spur gear motor supplier is a common reducer in the mechanical and electrical industry. For the performance and material selection of 70mm spur gear motor supplier, you can refer to the following aspects.
(1) Considering the nature of the magnetic field, the magnetic field in the magnetic circuit of the motor core has two types of constant magnetic field and rotating (alternating) magnetic field. Core: An important part of the motor to carry the magnetic flux and fix the stator winding. It is composed of an iron core body, a pressure finger and an end pressure plate (pressure ring), a positioning bar and a tightening screw to prevent circumferential movement. For the iron core working in a constant field, such as the main magnetic pole of DC motor, magnetic choke, synchronous motor rotor magnetic pole, etc. Can choose electrical pure iron, No. 10 steel, etc. It can make full use of its advantages of high permeability and saturation magnetic density. For the iron core working in the rotating (alternating, pulse vibration) magnetic field, such as a variety of AC 70mm spur motor supplier core, DC motor armature core and rotary transformer core, etc., should choose the appropriate silicon steel sheet, both to ensure the permeability and saturation magnetic density, but also to ensure the iron loss requirements.
(2) Consider the directivity and uniformity of the core permeability of various 70mm spur gear motor suppliers. Cold rolled and hot rolled silicon steel sheets are oriented (anisotropic) and non-oriented (isotropic). The punching core of micro motor and small and medium-sized motor generally adopts non-oriented silicon steel sheet. To meet the requirements of isotropy of the magnetic field distribution of the motor core. Transformers and large plastic 70mm spur gear motor supplier(general branch diameter greater than 990mm) punching core often adopts oriented silicon steel sheet. It should be noted that: Even for non-oriented silicon steel sheet materials, the magnetic properties (permeability and saturation magnetic density) of the materials are different compared to the rolling direction and orientation, and the magnetic properties are good in the rolling direction and poor in the non-rolling direction, which is the actual situation. Further measures should be taken for 70mm spur gear motor supplier cores that require high isotropic distribution of the magnetic field. For example, the marking slot is set on the punching sheet, and the stacking of the wrong slot is adopted after punching. Silicon steel: the silicon content is about 3% to 5%, and the other is mainly iron ferrosilicon alloy. It is an indispensable soft magnetic alloy in the power, electronics and military industries, and is also the largest metal functional material, mainly used as the core of various motors, generators and transformers. Its production process is complex, manufacturing technology is strict, and foreign production technology is protected in the form of patents, which is regarded as the life of enterprises.
(3) Considering the working magnetic density of the motor core, according to the characteristics of higher working magnetic density of the power motor core and lower working magnetic density of the signal motor core, the working magnetic density of the motor core can be divided into two categories: high and low. For iron cores with high working magnetic density (generally B10 000-15 000 Gauss), choose silicon steel sheet or electrician pure iron, and cold-rolled silicon steel sheet should be preferred for silicon steel sheet. Refer to Table 2-1, 2-2, 2-4 for the selection of high-low silicon steel sheets. It should be pointed out that for the small power motor of the drive class, the varieties of low-silicon and silicon-free cold-rolled steel sheet specifications are constantly increasing. Adapted to a large number of civil electrical motor needs. For industrial and control 70mm spur gear motor suppliers, high silicon silicon steel sheet is used to meet the motor performance requirements. For medium frequency AC motor, it is advisable to use DRG series silicon quill. An iron core with low working magnetic density (generally R7 500-10 000 Gauss). This type of signal motor is mostly used for precision measurement or reverse control, often using IJ50-1J79 to 1J85 and other iron-nickel alloy materials to ensure the sensitivity and linearity of the signal motor.
(4) Considering the size of the core loss and the impact of the structure on the core loss, attention should be paid to the following two aspects: ① The selection of the thickness of the silicon steel sheet The insulation between the core sheets of the thin silicon steel sheet is more. The iron report is small, but the number of laminated pieces increases, and the blanking and stacking workload increases. When thick silicon steel sheets are used, the insulation between the laminated core sheets is less, the iron loss is increased, but the number of laminated sheets is reduced, and the processing amount is correspondingly reduced. ② Consideration of the weight of the motor core For high-power motors, 70mm spur gear motor supplier iron core weight is large, should choose the unit iron loss of small silicon steel sheet and other soft materials. For small power motors, especially drive micromotors, the core weight is small, relatively speaking, the unit iron loss value of the core material can be appropriately relaxed.
(5) Price, different types of motor performance, use requirements are different, the price of the finished motor is relatively different, especially the production of different batches of motors, should be based on the price of the finished motor to choose the corresponding price level of the core punch.
70mm spur gear motor supplier https://www.dydzmotor.com/spur-gearbox
