The Xinjinlong of the carding machine has a large rotational inertia, and the start-up process develops slowly. In addition to requiring the motor to work with a large starting torque, you should also pay attention to the starting performance in the design of the transmission parts. The old carding machine The use of dead and live belt reels and belt sliding method realizes the gradual start of the Xilin, which is difficult to operate, cannot control the start time correctly, and shortens the service life of the transmission belt. Special equipment for the textile industry on the winder. As the last process of spinning and the first process of weaving, winding is the link between the past and the next.“bridge”Therefore, it occupies an important position in the textile field.
Carding machines are used to process cotton fibers and chemical fibers and belong to textile machinery. According to the spinning process, carding is an important process. The front process of the carding machine is the opening and cleaning machine, and the latter process is the drawing frame (carding process) or the sliver coiler (combing process).
Grinder A spinning machine that turns fiber strands into rovings. The main function is to draft and twist, and to wind the roving into a certain package to meet the processing requirements of the spinning frame. This old method causes sharp wear and heat of powered curtains when the ciling speed increases, making it unsuitable for use.
Using the friction clutch to realize the gradual starting of the high-yield carding machine Xinjinlong on the Xinjinlong can not only ensure that the motor maintains the rated speed and torque when starting, but also help reduce the motor overload and accurately control the start-up time. In the new production card design, the starting friction clutch has been replaced with a shaft mounted on the motor, which is a centrifugal friction clutch slider (Figure 2-9). Because of the high speed of the electric motor, it can further reduce the size of the long-term clutch, while reducing the requirement of suitable starting torque of the motor, with significant economical effect.
Because the power that can be transmitted through the centrifugal slider friction affects the work of the clutch, which is proportional to the product of the torque generated by the centrifugal force and the angular velocity, and the friction torque is proportional to the centrifugal force, which is proportional to the square of the rotational speed. Therefore, our centrifugal slider friction causes the output signal power of the clutch to be proportional to the cube of the rotational speed. Therefore, the centrifugal slider type friction clutch should be designed on the high-speed motor shaft as much as possible. The mechanical junction with long starting time, workload, moment of inertia in relation to clutch rpm clutch farm power.
Flash power consumption of Xinjinlong accounts for most of the cost of the whole carding machine, and can only be calculated according to the power consumption of Xinjinlong's starting system. Assuming that Xinjinlong is a simple hollow cylinder, its rotational inertia can be ignored in the approximate calculation. Assuming the time that the clutch shell rises from static to the set angular velocity during the starting process, the corresponding starting torque canvas, the starting torque Mo is provided by the motor shaft with a frontal angle and a power of P.