The advantages of cast iron motor shell are high hardness, not easy to deform and low price; The disadvantages are bulky, poor heat dissipation, poor plasticity, low elongation, no sound insulation, and less stable than aluminum. The advantages of aluminum alloy motor shell material are light weight, good thermal conductivity, strong plasticity, die-casting and extrusion, and higher elongation, stability and sound insulation performance than iron. The disadvantage of aluminum shell is that its price is high and its hardness is inferior to that of iron.
According to the output of stamping parts of motor housing, the more hoists are selected, the better. However, considering the size of material box and the cost of the whole automatic disc loading equipment, the equipment cost is reduced as far as possible on the premise of meeting the production demand. Therefore, two crawler type inclined lifting conveyors are selected for the project. The elevator is built in the silo. The upper end of the elevator is connected with the pipeline by a screening device to identify and screen the stamping parts of the motor housing in the positive and negative directions, so that the stamping parts of the positive motor housing can smoothly enter the pipeline. The stamping parts of the negative motor housing slide out of the screening leak and return to the silo. The other end of the pipeline is fixed in the lead-in pipe of the rack platform.
How to solve the problem of electrified motor shell in Dalian
(1) Dry the damp motor; Aging insulation must be renewed in time.
(2) Remove the end cover and find out the grounding point. The coil grounding point shall be wrapped, insulated and painted. The inner wall of the end cover shall be padded with insulating paper.
(3) Clean the terminal block.
(4) First, check whether the grounding device of the motor is intact and re grounded.
(5) Find out the power line and ground wire and correct the wiring error.
The motor housing has the elegant and solid characteristics of aluminum magnesium alloy. Carbon fiber: carbon fiber is a very interesting material. It also has high plasticity of ABS engineering plastics. The appearance is similar to plastic, but the strength and thermal conductivity are better than ordinary ABS plastic. Moreover, carbon fiber is a kind of conductive material, which can play a shielding role similar to metal. Therefore, the disadvantage of carbon fiber is that the interest is high, and it is easy to form without ABS shell. Therefore, the shape of carbon fiber shell is generally relatively simple, lack of change, and it is difficult to color.
The explosion-proof principle of the flameproof motor is: the live parts of the motor are placed in a special shell, which can isolate the sparks and arcs generated by the electrical parts in the shell from the explosive mixture outside the shell, and can withstand the explosion pressure generated when the explosive mixture entering the shell is ignited by the sparks and arcs of the electrical equipment in the shell, without damaging the shell; At the same time, it can prevent the explosive products in the shell from propagating to the explosive mixture outside the shell, and will not cause the combustion and explosion of the explosive mixture outside the shell. This special enclosure is called "flameproof enclosure". Motors with flameproof enclosures are called "flameproof motors". The mark of flameproof motor is "d". In order to achieve the flameproof and flameproof performance of the flameproof housing, there are special requirements for the shape, material, volume, structure, etc. of the flameproof housing.
