JPS6185568U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例を示す要部回路図、
第２図は従来例の概略回路図、第３図は従来の速
度制御方式による遮断桿下降時の電動機の駆動電
圧と回転数の関係を示す図である。 １…ブラシス直流電動機、２…回路制御器、５
…主電源、１１…リレー、１１ａ，１１ｂ…接点
、１２ａ，１２ｂ…切換接点、１３…定電圧回路
。 FIG. 1 is a main circuit diagram showing an embodiment of the present invention.
FIG. 2 is a schematic circuit diagram of a conventional example, and FIG. 3 is a diagram showing the relationship between the drive voltage and rotational speed of the motor when the cutoff rod is lowered using the conventional speed control method. 1... Brushed DC motor, 2... Circuit controller, 5
...Main power supply, 11...Relay, 11a, 11b...Contact, 12a, 12b...Switching contact, 13...Constant voltage circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 遮断桿を昇降駆動する電動機の駆動電圧を切換
えて遮断桿の上昇速度と下降速度を異ならせるよ
うに構成した踏切遮断機において、主電源と、該
主電源からの供給電圧を降下させて主電源電圧よ
り低い一定電圧を出力する定電圧回路とを設ける
と共に、前記遮断桿上昇動作時には主電源を前記
電動機に、下降動作時には定電圧回路を電動機に
それぞれ切換接続する電源切換手段を設けたこと
を特徴とする踏切遮断機の駆動回路。 In a level crossing circuit breaker configured to change the driving voltage of the electric motor that drives the cut-off rod up and down to make the rising and lowering speeds of the cut-off stick different, the main power source and the voltage supplied from the main power source are lowered. A constant voltage circuit that outputs a constant voltage lower than the voltage is provided, and a power supply switching means is provided for switching and connecting the main power source to the motor during the raising operation of the cutoff rod, and the constant voltage circuit to the electric motor during the lowering operation. A distinctive feature of the drive circuit for level crossing barriers.