JPH01167444U

JPH01167444U -

Info

Publication number: JPH01167444U
Application number: JP6610188U
Authority: JP
Priority date: 1988-05-18
Filing date: 1988-05-18
Publication date: 1989-11-24

Description

[Brief explanation of the drawing]

第１図はこれらの構成とフエースシヨベルとの
関系を示す全体構成の説明図であつて、同図ａは
請求項の実施例を示す図、同図ｂは請求項２の実
施例を示す図、第２図はフエースシヨベルのボト
ムダンプバケツトを説明する図、第３図は入力信
号がコントローラにおいて処理されてアクチユエ
ータに作動の命令信号を出力する過程を示す説明
図であつて、同図ａは請求項の実施例を示す図、
同図ｂは請求項２の実施例を示す図、第４図はボ
トムダンプバケツトの模式油圧回路図である。１……旋回油圧センサ、２……自動開閉スイツ
チ、３……開スイツチ、４……閉スイツチ、６Ａ
……ポテンシオメータ、６Ｂ……開口角度設定ボ
リーム、７……コントローラ、８……モニター、
９Ａ，９Ｂ……リレー、３２Ａ，３２Ｂ……アク
チユエータ。 FIG. 1 is an explanatory diagram of the overall configuration showing the relationship between these configurations and the face shovel, in which figure a shows an embodiment of the claim, and figure b shows an embodiment of claim 2. , FIG. 2 is a diagram explaining the bottom dump bucket of a face excavator, and FIG. 3 is an explanatory diagram showing the process in which an input signal is processed in the controller and an operation command signal is output to the actuator. Figures illustrating embodiments of the claims;
FIG. 4b is a diagram showing an embodiment of claim 2, and FIG. 4 is a schematic hydraulic circuit diagram of a bottom dump bucket. 1... Swing oil pressure sensor, 2... Automatic open/close switch, 3... Open switch, 4... Close switch, 6A
... Potentiometer, 6B ... Opening angle setting volume, 7 ... Controller, 8 ... Monitor,
9A, 9B... Relay, 32A, 32B... Actuator.

Claims

[Claims for Utility Model Registration] (1) In the face shaft 10 equipped with bottom dump buckets 11A and 11B, (a) means 1 for detecting a turning operation and emitting a turning signal Sf; automatic open/close switch 2 that opens the bottom dump bucket; (c) open switch 3 that issues an open signal Smo to open the bottom dump bucket; (d) close switch 4 that issues a close signal Smc to close the bottom dump bucket. (e) means 6A for detecting the opening degree θ of the bottom dump bucket and generating an opening signal V1; (f) the maximum opening degree θ of the bottom dump bucket;
( _g ) A controller for inputting the above signals, and in inputting these signals, an operator can set the automatic By pressing the open/close switch 1 once, the bottom dump bucket can be opened to the preset maximum opening degree θ ₀ , and when the swing operation is subsequently performed, the bottom dump bucket can be automatically closed. If you press the open switch 3 or close switch 4 even while the switch is operating, that command will take priority and the automatic opening/closing function can be canceled, and these operating signals (open signal: Sc, Smo, close signal: Sg, Smc) (h) an actuator 3 which inputs the output signal of the controller and applies an opening/closing operation to the bottom dump bucket opening/closing hydraulic operating valve based on this signal;
2A, 32B. An automatic bottom dump bucket opening/closing device for a face excavator, characterized by being configured as described above. (2) The means 6A and 6B of claim 1 are a pressure sensor 5 which is attached to a hydraulic circuit of a bottom dump bucket and which emits signals Sd and Sh when the circuit pressure becomes a relief pressure, and the controller further comprises: These input signals allow the operator to open the bottom dump bucket until relief pressure is reached by pressing the automatic open/close switch 1 once, and then automatically close the bottom dump bucket when the operator performs a turning operation. If the open switch 3 or the close switch 4 is pressed even while the automatic opening/closing function is operating, that command will take priority and the automatic opening/closing function can be canceled, and these activation signals (
Open signal: Sc, Smo Close signal: Sg, Smc)
2. The automatic opening/closing device for a bottom dump bucket for a face excavator according to claim 1, wherein the controller is equipped with a circuit for outputting the following.