JPS6087253U - hydraulic excavator - Google Patents
hydraulic excavatorInfo
- Publication number
- JPS6087253U JPS6087253U JP17885883U JP17885883U JPS6087253U JP S6087253 U JPS6087253 U JP S6087253U JP 17885883 U JP17885883 U JP 17885883U JP 17885883 U JP17885883 U JP 17885883U JP S6087253 U JPS6087253 U JP S6087253U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- cylinder
- hydraulic excavator
- switching valve
- boom cylinder
- 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
Landscapes
- Operation Control Of Excavators (AREA)
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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来から実施されている方法を示す正面図、第
２図は本考案の正面図、第３図は本考案のブームと油圧
シリンダの関係を示す正面図、第４図は本考案の油圧回
路図である。
１・・・・・・油圧ショベル本体、２・・・・・・ブー
ム、３・・・・・・フロントブーム、４・・・・・・リ
アブーム、５・・・・・・フロントブームシリンダ、６
・・・・・・ブームシリンダ、７・・・・・・テレスコ
ピックアーム、２２・・・・・・油路、２３・・・・・
・油路、２４・・・・・・切換弁、２５・・・・・・油
路、２６・・・・・・油路、２７・・・・・・切換弁、
２８・・・・・・切換弁、２９・・・・・・ヘッド側油
室、３０・・・・・・ヘッド側油室。 。Figure 1 is a front view showing the conventional method, Figure 2 is a front view of the present invention, Figure 3 is a front view showing the relationship between the boom of the present invention and the hydraulic cylinder, and Figure 4 is the front view of the present invention. FIG. 1...Hydraulic excavator body, 2...Boom, 3...Front boom, 4...Rear boom, 5...Front boom cylinder, 6
...Boom cylinder, 7...Telescopic arm, 22...Oil passage, 23...
- Oil passage, 24... switching valve, 25... oil passage, 26... oil passage, 27... switching valve,
28...Switching valve, 29...Head side oil chamber, 30...Head side oil chamber. .
Claims (1)
構成し、両者を上下に回動可能に連結し、両者の間にフ
ロントブームシリンダを装着し、リアブームを油圧ショ
ベル本体に、フロントブームにテレスコピックアームを
それぞれ連結し、ブームシリンダ、アームシリンダで作
動する如くすると共に、フロントブームシリンダとりア
ブ−ムシリンダの圧油の作用断面積を等しくし、かつ、
フロントブームシリンダとその操作用切換弁の間の油路
、および、ブームシリンダとその操作用切換弁の間の油
路に共通する切換弁を設け、該切換弁を操作してフロン
トブームシリンダのヘッド側油室とブームシリンダのヘ
ッド側油室を連通せしめることができる如く構成したこ
とよりなる油圧ショベル。The boom of a hydraulic excavator consists of a front boom and a rear boom, both of which are connected so that they can rotate up and down, a front boom cylinder is installed between them, the rear boom is connected to the hydraulic excavator body, and a telescopic arm is connected to the front boom. The boom cylinder and the arm cylinder are operated, and the working cross-sectional areas of the pressure oil of the front boom cylinder and the abm cylinder are made equal, and
A common switching valve is provided in the oil passage between the front boom cylinder and its operating switching valve, and the oil passage between the boom cylinder and its operating switching valve, and the switching valve is operated to control the head of the front boom cylinder. A hydraulic excavator configured to allow communication between a side oil chamber and a head side oil chamber of a boom cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17885883U JPS6087253U (en) | 1983-11-18 | 1983-11-18 | hydraulic excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17885883U JPS6087253U (en) | 1983-11-18 | 1983-11-18 | hydraulic excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6087253U true JPS6087253U (en) | 1985-06-15 |
Family
ID=30388207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17885883U Pending JPS6087253U (en) | 1983-11-18 | 1983-11-18 | hydraulic excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6087253U (en) |
-
1983
- 1983-11-18 JP JP17885883U patent/JPS6087253U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6087253U (en) | hydraulic excavator | |
| JPS6113004U (en) | hydraulic regeneration circuit | |
| JPS6110366U (en) | Front loader hydraulic circuit | |
| JPS6096472U (en) | Front loader hydraulic control device | |
| JPS581669U (en) | Hydraulic circuit for excavator rotation and boom swing | |
| JPS6140804U (en) | Agricultural tractor work equipment control valve | |
| JPS6162965U (en) | ||
| JPS60148785U (en) | Engine, hydraulic grab bucket | |
| JPS60189602U (en) | hydraulic control circuit | |
| JPS60130293U (en) | hydraulic jack | |
| JPS595655U (en) | excavation work vehicle | |
| JPS60135364U (en) | Hydraulic excavator hydraulic circuit | |
| JPS60159798U (en) | Hydraulic circuit of work vehicle with boom | |
| JPS59102653U (en) | Blade lifting device for work vehicles | |
| JPS59116465U (en) | Blade work/scraper work switching device for construction vehicles | |
| JPS6272365U (en) | ||
| JPH03127691U (en) | ||
| JPS6123352U (en) | Hydraulic circuit of a hydraulic shovel that also serves as a crane | |
| JPS591760U (en) | excavator | |
| JPS61155407U (en) | ||
| JPS608750U (en) | excavator hydraulic circuit | |
| JPS631066U (en) | ||
| JPS5894757U (en) | Hydraulic excavator hydraulic circuit | |
| JPS5834886U (en) | Control circuit for boom hoisting cylinder | |
| JPS60178061U (en) | Power swivel hydraulic circuit |