JPH0160882U - - Google Patents
Info
- Publication number
- JPH0160882U JPH0160882U JP15720287U JP15720287U JPH0160882U JP H0160882 U JPH0160882 U JP H0160882U JP 15720287 U JP15720287 U JP 15720287U JP 15720287 U JP15720287 U JP 15720287U JP H0160882 U JPH0160882 U JP H0160882U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- switching valve
- control lever
- pilot
- breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
第１図はこの考案の構成を示す油圧および機構
系統図、第２図は第１図における連結装置の構造
を示す断面図、第３図はメインポンプの特性を示
す線図、第４図はアクセルレバーの作動を示す斜
視図、第５図はコーシヨンプレートの１例を示す
正面図、第６図は油圧ブレーカを油圧シヨベルに
装着して破砕作業を行うときの状態を示す側面図
である。
１１……油圧ブレーカ、１９……シリンダ、２
０……レバー、２１……ロツド、３０……コント
ロールスタンド、３１……アクセルレバー、３３
……コントロールレバー、３４……連結装置。
Fig. 1 is a hydraulic and mechanical system diagram showing the configuration of this invention, Fig. 2 is a sectional view showing the structure of the coupling device in Fig. 1, Fig. 3 is a diagram showing the characteristics of the main pump, and Fig. 4 is FIG. 5 is a perspective view showing the operation of the accelerator lever, FIG. 5 is a front view showing an example of a caution plate, and FIG. 6 is a side view showing the state when a hydraulic breaker is attached to a hydraulic excavator to perform crushing work. . 11...Hydraulic breaker, 19...Cylinder, 2
0... Lever, 21... Rod, 30... Control stand, 31... Accelerator lever, 33
...Control lever, 34...Connection device.
Claims (1)
弁および油圧ブレーカ以外のアクチユエータ用の
油圧切換弁から構成される油圧切換弁群に圧油を
供給するメインポンプを有する作業機械において
、メインポンプを駆動するエンジンのコントロー
ルレバーとアクセルレバーとの間にエンジンの回
転数が上昇する方向に所定の付勢力をもつて張設
されたスプリングを内蔵する連結装置を介在させ
、上記コントロールレバーまたは該コントロール
レバーの回動にともない移動する部材上の一点が
、エンジンの回転数を上昇させる方向に移動する
量を、作動時にのみ制限するシリンダを設け、該
シリンダの油室に油圧ブレーカ用の油圧切換弁の
パイロツト油室に通じるパイロツト管路を分岐し
て導いたことを特長とする油圧ブレーカの運転装
置。 In a work machine that has a main pump that supplies pressure oil to a hydraulic switching valve group consisting of a hydraulic pilot-type hydraulic switching valve for a hydraulic breaker and a hydraulic switching valve for an actuator other than a hydraulic breaker, an engine that drives the main pump. A coupling device containing a spring tensioned with a predetermined biasing force in the direction of increasing engine speed is interposed between the control lever and the accelerator lever, and the rotation of the control lever or the control lever is A cylinder is provided that limits the amount by which a point on a moving member moves in the direction of increasing the engine speed only during operation, and the oil chamber of the cylinder is equipped with a pilot oil chamber for a hydraulic switching valve for a hydraulic breaker. A hydraulic breaker operating device characterized by branching and guiding a pilot pipe leading to the
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15720287U JPH074132Y2 (en) | 1987-10-13 | 1987-10-13 | Hydraulic breaker operating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15720287U JPH074132Y2 (en) | 1987-10-13 | 1987-10-13 | Hydraulic breaker operating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0160882U true JPH0160882U (en) | 1989-04-18 |
| JPH074132Y2 JPH074132Y2 (en) | 1995-02-01 |
Family
ID=31436438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15720287U Expired - Lifetime JPH074132Y2 (en) | 1987-10-13 | 1987-10-13 | Hydraulic breaker operating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074132Y2 (en) |
-
1987
- 1987-10-13 JP JP15720287U patent/JPH074132Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH074132Y2 (en) | 1995-02-01 |
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