JPH0469684U - - Google Patents

Description

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

第１図は本考案の実施例に係る液圧供給装置の
油圧及び電気回路図、第２図は第１図における各
ポンプ用電動機１サイクル中の運転手順を示す動
作説明図、第３図は従来の液圧供給装置を示す油
圧回路図、第４図は第３図における各ポンプ用電
動機１サイクル中の負荷状況を示す動作説明図で
ある。 図の主要部分の説明、１〜６……電動機Ｍ１〜
Ｍ６、１１〜１６……液圧ポンプ、２１〜２６，
３１〜３６……ソレノイド、１００……共通ライ
ン、１０１……メモリ、１０２……押釦スイツチ
、１０３……リレー、１０４……タイマ、１０５
……チエツカー。 Fig. 1 is a hydraulic and electrical circuit diagram of a hydraulic pressure supply device according to an embodiment of the present invention, Fig. 2 is an operational explanatory diagram showing the operating procedure during one cycle of each pump electric motor in Fig. 1, and Fig. 3 is FIG. 4 is a hydraulic circuit diagram showing a conventional hydraulic pressure supply device, and FIG. 4 is an operation explanatory diagram showing the load condition during one cycle of each pump electric motor in FIG. 3. Explanation of the main parts of the diagram, 1 to 6...Electric motor M1 to
M6, 11-16...hydraulic pump, 21-26,
31-36...Solenoid, 100...Common line, 101...Memory, 102...Push button switch, 103...Relay, 104...Timer, 105
...Chetzker.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数台数のポンプ駆動電動機で液圧源を構成し
、１サイクル中のポンプの負荷シーケンスを予め
記憶する記憶回路を有し、同記憶回路により前記
ポンプを運転する液圧供給装置において、運転開
始時、前記記憶回路の１サイクル中のポンプの負
荷条件を、外部信号によつてチエツクするチエツ
ク装置を設け、１サイクル中全く負荷の加わらな
いポンプについては、当該電動機を停止するよう
にしたことを特徴とする液圧供給装置。 In a hydraulic pressure supply device in which a hydraulic pressure source is constituted by a plurality of pump drive electric motors, a memory circuit is provided to store in advance the load sequence of the pump during one cycle, and the pump is operated by the memory circuit, at the start of operation. , a check device is provided for checking the load condition of the pump during one cycle of the memory circuit using an external signal, and for a pump that is not subjected to any load during one cycle, the motor is stopped. Hydraulic pressure supply device.