Dwinauto's variable speed drive LCD non-marking offset machine for mechanical parts

Date:2022/1/13 9:25:39 / Read: / Source:本站

Dwinauto's variable speed drive LCD non-marking offset machine for mechanical parts

Some work processes require changes in speed and torque, especially for frequent and laborious starting processes. Regardless of the type of input device, it is always economical to change the speed at high speed (ie, low torque occasions), and use a gear transmission connected in series with its output to reduce the speed, that is, to increase the torque. www.dwinauto.com

Structure type
First of all, it must be checked whether the operation process only requires multiple fixed speeds (such as many machine tool drives - some mining machinery, extrusion presses, etc.). www.dwinauto.com

(1) Step-by-step transmission should be given priority. The most reliable and economical variable speed drive is generally connected to a simple AC motor. At the output end, it can output full power for each speed, that is, output low torque at high speed, and vice versa. Available synchros make it easy to shift gears. With the aid of a front hydraulic or hydraulic transmission, a high starting torque can be produced while starting smoothly - but be aware that the force flow will be interrupted when changing gears if not prevented by an additional device. www.dwinauto.com

(2) The stepless variable speed drive can be realized by the speed regulating motor when the power is low (below 05kW) or the power exceeds 75kW. For high power, controllable DC motors are mainly used today, which are connected to the AC network through a rectifier. Controlled rectification (simpler) AC motors will continue to increase in value here if expensive high-power electronics can be made cheap, and mechanical engineers must be on the lookout for this development. In the range of 0.5 to 75kW, mechanical continuously variable transmissions are mainly used in machinery manufacturing. However, one has to comment on both function and price for each specific situation to judge whether the speed-regulated electric motor or the hydraulic (or hydraulic) transmission scheme described below also has certain advantages. www.dwinauto.com

(3) The working principle of the mechanical continuously variable transmission device is to change the radius of action of the force as needed. With few exceptions, this is only possible with friction transmission. Accordingly, there is a class of variable speed transmissions in which only one radius is variable. If the active friction disc has a magic friction radius. Then the fixed transmit low force and the circumferential transmission will speed are a constant; the transmission will be constant power: that is, output a high torque at speed, and vice versa versa. The basic advantage of the mechanical continuously variable transmission lies in this characteristic (compared to this, the speed-regulated motor can only work continuously at the rated torque. It is only allowed to overload for a short time, and the current intensity increases accordingly.) www.dwinauto.com

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