The motor shell is a kind of chassis shell that assembles electronic components on it. It supports the fixation and handling of electronic components. Without the support of the shell, the motor cannot be produced. All motors have shells. At the beginning of the design, each motor shell is equipped with screw holes to install the motor core and some electronic components.
The mechanical strength of motor housing refers to the compressive, tensile and flexural strength. The ability to resist bending deformation is called stiffness, and the ability to withstand impact is called toughness. Toughness and brittleness are relative. The mechanical strength is related to the reliability and service life of the machinery. Of course, mechanical strength covers a wide range of contents, such as static strength and dynamic stress and strain.
According to the materials used and the forming method, it can be divided into: Dalian motor shell price
(1) Steel casing, including seamless steel pipe, directly turning and forming; It is rolled and welded by the key plate, referred to as the roll welded shell for short, and stretched by iron sheet (low carbon steel). These forming methods belong to less cutting and no cutting processing, which are suitable for mass production and have been widely used, especially when the magnetic conduction of the shell is required.
(2) Aluminum alloy casings, including aluminum plate stretch forming casings, die-casting aluminum casings, cold extrusion forming casings and aluminum alloy pipe forming casings. Aluminum alloy is widely used because of its low density, light weight and convenient processing. The aluminum alloy shell structure of cold extrusion blank and turning finish machining. The blank needs aging treatment after cold extrusion After finishing, the surface needs to be anodized.
(3) Stainless steel casing, including profile turning casing, cold extrusion casing, etc It is used for emblem controlled motors with small seat size (below 28 seat), which can ensure the necessary strength, dimensional stability and corrosion resistance.
(4) the plastic pressed casing is a part of the stator double insulation structure in the motor for electric tools. In addition, there are different types of chassis without base, chassis with base, square casing and circular casing.
The functions of the casing in the structure include: supporting the stator core. The rotor assembly is supported by the end cover and is coaxial with the stator assembly.
In general, the steel casing plays both a supporting role and a magnetic conduction role; Aluminum alloy casing and stainless steel casing are non-magnetic It only serves as a support. All motor casings have the functions of protection and heat dissipation in structure. The plastic casing also has excellent insulation. Generally, it is installed through the casing lip.
