JPS63142402U - - Google Patents
Info
- Publication number
- JPS63142402U JPS63142402U JP3517687U JP3517687U JPS63142402U JP S63142402 U JPS63142402 U JP S63142402U JP 3517687 U JP3517687 U JP 3517687U JP 3517687 U JP3517687 U JP 3517687U JP S63142402 U JPS63142402 U JP S63142402U
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- piston
- shock reduction
- controlling
- pipes
- 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.)
- Pending
Links
- 230000035939 shock Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は全体回路図、第２図はコントロールバ
ルブの操作回路図、第３図はシヨツク低減用シリ
ンダの拡大断面図、第４図及び第５図は作動説明
図、第６図は従来例の回路図である。
１：アクチユエータ、２，３：リリーフ弁、４
：コントロールバルブ、５：チエツク弁、６：パ
イロツトバルプ、６′：操作レバー、７：作動用
油圧ポンプ、８：操作用油圧ポンプ、９，９′：
タンク、１０：負荷（慣性負荷Ｗ）、１１，１２
：操作用油圧回路、１３：シヨツク低減用油圧シ
リンダ、１５：シヨツク低減用油圧シリンダのボ
デイ、１６：ピストン、１７：バネ受け、１８：
バネ、１９：フランジ、２０，２１：管路。
Fig. 1 is an overall circuit diagram, Fig. 2 is an operating circuit diagram of the control valve, Fig. 3 is an enlarged sectional view of the shock reduction cylinder, Figs. 4 and 5 are explanatory diagrams of operation, and Fig. 6 is a conventional example. FIG. 1: Actuator, 2, 3: Relief valve, 4
: Control valve, 5: Check valve, 6: Pilot valve, 6': Operation lever, 7: Hydraulic pump for operation, 8: Hydraulic pump for operation, 9,9':
Tank, 10: Load (inertial load W), 11, 12
: Hydraulic circuit for operation, 13: Hydraulic cylinder for shock reduction, 15: Body of hydraulic cylinder for shock reduction, 16: Piston, 17: Spring receiver, 18:
Spring, 19: flange, 20, 21: conduit.
Claims (1)
ルブ４と該コントロールバルブ４の制御用パイロ
ツトバルブ６とを結ぶ操作用油圧回路１１，１２
間に、管路２０，２１を介して前記コントロール
バルブ４と並列にシヨツク低減用シリンダ１３を
挿入し、該シヨツク低減用シリンダ１３は、両端
に前記管路２０，２１と連通する導入孔を有する
フランジ１９を具えた筒状ボデイ１５内にピスト
ン１６を内蔵し、該ピストン１６の両端をバネ受
け１７を介してバネ１８で支承させてなることを
特徴とする建設機械用コントロールバルブ駆動油
圧回路。 Hydraulic circuits 11 and 12 for operation connect the control valve 4 for controlling the hydraulic actuator 1 and the pilot valve 6 for controlling the control valve 4
In between, a shock reduction cylinder 13 is inserted in parallel with the control valve 4 via pipes 20 and 21, and the shock reduction cylinder 13 has introduction holes communicating with the pipes 20 and 21 at both ends. This control valve drive hydraulic circuit for construction machinery is characterized in that a piston 16 is built in a cylindrical body 15 provided with a flange 19, and both ends of the piston 16 are supported by springs 18 via spring receivers 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3517687U JPS63142402U (en) | 1987-03-12 | 1987-03-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3517687U JPS63142402U (en) | 1987-03-12 | 1987-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63142402U true JPS63142402U (en) | 1988-09-20 |
Family
ID=30844426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3517687U Pending JPS63142402U (en) | 1987-03-12 | 1987-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63142402U (en) |
-
1987
- 1987-03-12 JP JP3517687U patent/JPS63142402U/ja active Pending
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