smitty1322
Mechanical
- Mar 21, 2001
- 16
I am currently working on a design for a customer (construction OEM) that used to buy SKIL handsaws and cut the handles off. They have asked my company to design a 115 VAC, 1 HP complete motor for them.
The problem I have is in the design of the field. We have developed a motor and the customer has tested it. The feedback we received was that the skil motors would "burn up" but when bogged down they would power through. The customer could not burn up our motor but it would stall.
While designing the motor, one difference was obvious. The skil saw had two separate coils on each side, one larger to wrap around the armature and one smaller one inside this larger one. Our field laminations only allow for one coil.
My questions are what this smaller coil actually adds to the performance? Does the smaller coil allow for a stronger field? We have increased the wire size, to try to get more low end torque, as much as space constraints will allow. Any suggestions on what to try next?
The problem I have is in the design of the field. We have developed a motor and the customer has tested it. The feedback we received was that the skil motors would "burn up" but when bogged down they would power through. The customer could not burn up our motor but it would stall.
While designing the motor, one difference was obvious. The skil saw had two separate coils on each side, one larger to wrap around the armature and one smaller one inside this larger one. Our field laminations only allow for one coil.
My questions are what this smaller coil actually adds to the performance? Does the smaller coil allow for a stronger field? We have increased the wire size, to try to get more low end torque, as much as space constraints will allow. Any suggestions on what to try next?