The invention discloses a frequency converter and a control method thereof. The frequency converter comprises a rack, a blocking cavity with a leftward opening is formed in the rack, a plurality of blocking mechanisms are arranged in the rack up and down, each blocking mechanism comprises extending grooves symmetrical front and back about the blocking cavity, and a hydraulic cylinder is fixedly arranged on the left wall of each extending groove; and a limiting plate slidably mounted on the outer wall of the corresponding extending groove is fixedly arranged at the right side of each hydraulic cylinder, a springback rotating shaft is rotatably mounted between the front wall and the rear wall of the blocking cavity, a blocking plate is fixedly arranged on the springback rotating shaft, and the blocking plate extends leftwards out of the rack. A well descending manner is changed into an elevator type well descending manner, and then a heating device is arranged inside, so that the internal temperature is increased along with the well depth, a warm environment is provided for workers, and the situations that hands and feet are stiff, work is inconvenient and the working efficiency is affected due to cold are avoided.
本发明公开了一种变频器及其控制方法,包括机架,所述机架内设有开口向左的阻挡腔,所述机架内上下排布有若干组阻挡机构,所述阻挡机构包括关于所述阻挡腔前后位置对称的伸出槽,所述伸出槽左壁上固设有液压缸,所述液压缸右侧固设有滑动安装有所述伸出槽外壁的限位板,所述阻挡腔前后壁之间转动安装有回弹转轴,所述回弹转轴上固设有阻挡板,所述阻挡板向左延伸出所述机架;本发明通过将下井方式变为电梯式下井,然后再内部配备有发热的装置,使得内部温度随着井深增高,给工作人员温暖的环境,避免由于寒冷导致的手脚僵硬,工作不便,影响工作效率。
Frequency converter and control method thereof
一种变频器及其控制方法
2021-08-20
Patent
Electronic Resource
Chinese
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