JPS6136148U

JPS6136148U - Engine speed control device for hydraulic work equipment

Info

Publication number: JPS6136148U
Application number: JP12061684U
Authority: JP
Inventors: 玄六杉山; 修一一山; 幸雄青柳
Original assignee: 日立建機株式会社
Priority date: 1984-08-07
Filing date: 1984-08-07
Publication date: 1986-03-06

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係るエンジン回転数制御装
置の構成図、第２図は本考案の他の実施例に係るエンジ
ン回転数制御装置の構成図、第３図は本考案のさらに他
の実施例に係るエンジン回転数制御装置の構成図である
。１・・・・・・燃料レバー、３・・・・・・操作量伝達
用ケーブル、４・・・・・・第一のリンク、５・・・・
・・第二のリンク、６・・・・・・第三のリンク、６ａ
・・・・・・長孔、７・・・・・・はね、８・・・・・
・操作量伝達用ケーブル、９・・・・・・エンジンガパ
ナコントロールレバー、１０・・・・・・エンジン、１
１・・・・・・油圧ポンプ、１２・・・・・・作業用ア
クチュエータ、１４，２４・・・・・・操作レハー
、１５・・・・・・パイロット発生用油圧ポンプ、１６
．２６・・・・・・切換弁、１７・・・・・・カム、１
８・・・・・・油圧シリンダ装置。FIG. 1 is a block diagram of an engine speed control device according to an embodiment of the present invention, FIG. 2 is a block diagram of an engine speed control device according to another embodiment of the present invention, and FIG. 3 is a block diagram of an engine speed control device according to another embodiment of the present invention. It is a block diagram of the engine rotation speed control apparatus based on yet another Example. 1... Fuel lever, 3... Operation amount transmission cable, 4... First link, 5...
...Second link, 6...Third link, 6a
...Long hole, 7...Splash, 8...
・Manipulation amount transmission cable, 9...Engine gap control lever, 10...Engine, 1
1...Hydraulic pump, 12...Actuator for work, 14, 24...Operating lever, 15...Hydraulic pump for pilot generation, 16
．． 26...Switching valve, 17...Cam, 1
8...Hydraulic cylinder device.

Claims

[Scope of utility model registration request]

(1) An engine, a hydraulic pump drivingly connected to the engine, a working actuator operated by pressure oil from the hydraulic pump, a control lever for the working actuator, and engine control by operating the fuel lever. In a hydraulic working machine that has a lever control system, there is a spring device that causes the engine to operate the BANA control lever according to the amount of operation of the fuel lever using a preset tension, and a spring device that causes the engine to operate the BANA control lever according to the operating amount of the fuel lever when the work actuator is not activated. a control device that operates in the bottom rotation position; this control device includes a switching valve that switches in conjunction with a means for detecting the operating position of the operating lever; and a control device that operates by pressure oil from the switching valve when the actuator is not in operation. and a cylinder device that operates the engine governor control lever to rotate the engine bottom by resisting the preset tension of the splash device and releases the engine governor control lever to a position corresponding to the operating amount of the fuel lever when the actuator is activated. An engine rotation speed control device for a hydraulic working machine, characterized in that:

(2) The splash device is connected to a first link that is connected to the operation amount transmission means from the fuel lever, a second link that is connected to the pana control lever via the operation amount transmission means, and a second link that is connected to the pana control lever via the operation amount transmission means. a spring that connects the first link and the second link with a preset bristle tension; and a spring that engages the first link and the second link, the second link being connected to the engine governor control lever. The engine speed control device for a hydraulic working machine according to claim (1), which is a registered utility model, characterized in that the third link has a long hole that escapes to the low D position of the engine.