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YVPEJ系列變頻電磁制動(dòng)電機(jī)
YVPEJ通常是指變頻調(diào)速電磁制動(dòng)三相異步電動(dòng)機(jī),并非超頻電磁軟啟動(dòng)電機(jī)。以下是對(duì)YVPEJ電機(jī)的介紹:
- 結(jié)構(gòu)組成:YVPEJ系列電機(jī)是由YVF2系列變頻調(diào)速電動(dòng)機(jī)與電磁制動(dòng)器組合而成,是全封閉自扇冷式鼠籠型具有附加圓盤(pán)型直流制動(dòng)器的三相異步電動(dòng)機(jī)。此外,制動(dòng)器還具有人工釋放機(jī)構(gòu)。
- 工作原理:當(dāng)制動(dòng)線圈接通直流電源后,由于電磁力作用,電磁鐵吸引銜鐵,并壓縮彈簧,使制動(dòng)盤(pán)與銜鐵和電機(jī)端蓋的摩擦面脫開(kāi),電機(jī)即可正常運(yùn)轉(zhuǎn)。當(dāng)制動(dòng)器線圈的直流電源切斷后,電磁鐵失去電磁吸引,彈簧把銜鐵推出壓緊制動(dòng)盤(pán),制動(dòng)盤(pán)受到銜鐵和電機(jī)端蓋的兩個(gè)摩擦力矩作用,迅速剎住電機(jī)轉(zhuǎn)軸,使電機(jī)停止轉(zhuǎn)動(dòng)。
- 性能特點(diǎn)
- 調(diào)速范圍廣:電機(jī)調(diào)速范圍為5(3)-100Hz為無(wú)級(jí)調(diào)速,5(3)-50Hz為恒轉(zhuǎn)矩調(diào)速,50-100Hz為恒功率調(diào)速,在矢量控制的條件下,調(diào)速范圍還可以擴(kuò)大。
- 快速制動(dòng):能實(shí)現(xiàn)電機(jī)失電后快速制動(dòng),快速制動(dòng)時(shí)間YVPEJ-63-100電機(jī)小于0.2s,YVPEJ-112-132電機(jī)小于0.25s,YVPEJ-160-250電機(jī)小于0.5s。
- 過(guò)載能力強(qiáng):電機(jī)能承受額定轉(zhuǎn)矩的160%過(guò)載,歷時(shí)1分鐘。
- 低速性能好:低速時(shí)轉(zhuǎn)矩平滑,無(wú)爬行現(xiàn)象。
- 冷卻效果好:電機(jī)采用了獨(dú)特的冷卻結(jié)構(gòu),使用特殊加長(zhǎng)的軸流風(fēng)機(jī),保證了電機(jī)在低頻恒轉(zhuǎn)矩長(zhǎng)期運(yùn)行時(shí)溫升不超過(guò)允許值。
- 應(yīng)用領(lǐng)域:適用于機(jī)械、礦山、冶金、紡織、印染、化工、農(nóng)機(jī)等需要無(wú)級(jí)變速又需要快速停機(jī)、準(zhǔn)確定位的設(shè)備,可代替機(jī)械傳動(dòng)中的無(wú)級(jí)變速機(jī)。
YVPEJ usually refers to a three-phase asynchronous motor with variable frequency speed regulation and electromagnetic braking, not an overclocking electromagnetic soft start motor. The following is an introduction to the YVPEJ motor:
-Structure composition: The YVPEJ series motor is composed of the YVF2 series variable frequency speed control motor and electromagnetic brake. It is a fully enclosed self fan cooled squirrel cage type three-phase asynchronous motor with an additional disc type DC brake. In addition, the brake also has a manual release mechanism.
-Working principle: When the brake coil is connected to the DC power supply, due to the electromagnetic force, the electromagnet attracts the armature and compresses the spring, causing the friction surface between the brake disc and the armature and the motor end cover to detach, and the motor can operate normally. When the DC power supply to the brake coil is cut off, the electromagnet loses its electromagnetic attraction, and the spring pushes the armature out to press the brake disc. The brake disc is subjected to two frictional torques from the armature and the motor end cover, quickly stopping the motor shaft and stopping the motor rotation.
-Performance characteristics
-Wide speed regulation range: The motor speed regulation range is 5 (3) -100Hz for stepless speed regulation, 5 (3) -50Hz for constant torque speed regulation, and 50-100Hz for constant power speed regulation. Under vector control conditions, the speed regulation range can also be expanded.
-Fast braking: It can achieve fast braking after the motor loses power. The fast braking time for YVPEJ-63-100 motor is less than 0.2 seconds, YVPEJ-112-132 motor is less than 0.25 seconds, and YVPEJ-160-250 motor is less than 0.5 seconds.
-Strong overload capacity: The motor can withstand an overload of 160% of the rated torque for 1 minute.
-Good low-speed performance: Smooth torque and no crawling phenomenon at low speeds.
-Good cooling effect: The motor adopts a unique cooling structure and uses a specially extended axial flow fan to ensure that the temperature rise of the motor does not exceed the allowable value during long-term low-frequency constant torque operation.
-Application areas: Suitable for equipment such as machinery, mining, metallurgy, textile, printing and dyeing, chemical industry, agricultural machinery, etc. that require continuously variable speed, rapid shutdown, and accurate positioning. It can replace the continuously variable transmission in mechanical transmission.
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