JPS59129954U - Backhoe hydraulic system - Google Patents

Backhoe hydraulic system

Info

Publication number
JPS59129954U
JPS59129954U JP2223283U JP2223283U JPS59129954U JP S59129954 U JPS59129954 U JP S59129954U JP 2223283 U JP2223283 U JP 2223283U JP 2223283 U JP2223283 U JP 2223283U JP S59129954 U JPS59129954 U JP S59129954U
Authority
JP
Japan
Prior art keywords
backhoe
hydraulic system
cylinder
tilting
vertical movement
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
Application number
JP2223283U
Other languages
Japanese (ja)
Other versions
JPH0342125Y2 (en
Inventor
井上　克昌
Original Assignee
セイレイ工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by セイレイ工業株式会社 filed Critical セイレイ工業株式会社
Priority to JP2223283U priority Critical patent/JPS59129954U/en
Publication of JPS59129954U publication Critical patent/JPS59129954U/en
Application granted granted Critical
Publication of JPH0342125Y2 publication Critical patent/JPH0342125Y2/ja
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/307—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom the boom and the dipper-arm being connected so as to permit relative movement in more than one plane
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • 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

【図面の簡単な説明】[Brief explanation of drawings]

第１図はバックホーの全体側面図。第２図は同じく前面
図。第３図はアーム１３を左右へ傾動した場合のバック
ホーの前面図。第４図はブーム９の上半分９ｂを左右傾
動した場合の前面図。第５図はブーム９の下端から左右
傾動した場合の前面図。第６図は第３図の斜視図。第７
図は第４図の斜視図。第８図は第５図の斜視図。第９図
は本案の油圧回路図。第１０図、第１１図、第１２図は
従来の油圧回路図である。 ５・・・・・・ブームシリンダー、６・・・・・・アー
ムシリンダー、７・・・・・・パケットシリンダー、８
・・・・・・パケット、９・・・・・・ブーム、１０，
１２．１７・・曲傾動シリンダー、１３・・・・・・ア
ーム、１８・・・・・・セレクターバルブ、１９・・・
・・・コントロールバルブ、２２゜２３．２６．２５・
・・・・・リリーフ弁。Figure 1 is an overall side view of the backhoe. Figure 2 is also a front view. FIG. 3 is a front view of the backhoe when the arm 13 is tilted left and right. FIG. 4 is a front view when the upper half 9b of the boom 9 is tilted left and right. FIG. 5 is a front view of the boom 9 when it is tilted left and right from the lower end. FIG. 6 is a perspective view of FIG. 3. 7th
The figure is a perspective view of FIG. 4. FIG. 8 is a perspective view of FIG. 5. Figure 9 is a hydraulic circuit diagram of the present invention. FIGS. 10, 11, and 12 are conventional hydraulic circuit diagrams. 5...Boom cylinder, 6...Arm cylinder, 7...Packet cylinder, 8
...Packet, 9...Boom, 10,
12.17...Curved tilting cylinder, 13...Arm, 18...Selector valve, 19...
...Control valve, 22゜23.26.25・
...Relief valve.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）バックホー装置のアーム、又はブームを垂直線に
対して傾動可能とする枢支部と傾動用の傾動シリンダー
を設け、該傾動シリンダーとブラケット又はアーム、又
はブーム上下回動用の油圧シリンダーをセレクターバル
ブにて切換え可能としたことを特徴とするバックホーの
油圧装置。(1) A pivot part and a tilting cylinder are provided to enable the arm or boom of the backhoe device to be tilted with respect to a vertical line, and the tilting cylinder and the bracket or arm, or the hydraulic cylinder for vertical movement of the boom, are connected to a selector valve. A backhoe hydraulic system characterized by being able to switch between. （２）前記油圧シリンダー「上げ」「中立」「下げ」を
操作スるコントロールバルブと、上下回動、左右傾動を
切換えるセレクターバルブを設けたものにおいて、セレ
クターバルブと上下回動用及び左右傾動用油圧シリンダ
ーの間にリリーフバルブを配置したことを特徴とする実
用新案登録請求の範囲第１項記載のバックホーの油圧装
置。(2) In the case where the hydraulic cylinder is equipped with a control valve that operates "raise", "neutral", and "lower" and a selector valve that switches vertical movement and left/right tilting, the selector valve and the hydraulic pressure for vertical movement and left/right tilting are installed. A hydraulic system for a backhoe according to claim 1, characterized in that a relief valve is disposed between the cylinders.
JP2223283U 1983-02-16 1983-02-16 Backhoe hydraulic system Granted JPS59129954U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2223283U JPS59129954U (en) 1983-02-16 1983-02-16 Backhoe hydraulic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2223283U JPS59129954U (en) 1983-02-16 1983-02-16 Backhoe hydraulic system

Publications (2)

Publication Number Publication Date
JPS59129954U true JPS59129954U (en) 1984-08-31
JPH0342125Y2 JPH0342125Y2 (en) 1991-09-04

Family

ID=30153335

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2223283U Granted JPS59129954U (en) 1983-02-16 1983-02-16 Backhoe hydraulic system

Country Status (1)

Country Link
JP (1) JPS59129954U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55106267U (en) * 1979-01-13 1980-07-24
JPS55108538A (en) * 1979-02-14 1980-08-20 Kobe Steel Ltd Hydraulic circuit for hydraulic shovel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55106267U (en) * 1979-01-13 1980-07-24
JPS55108538A (en) * 1979-02-14 1980-08-20 Kobe Steel Ltd Hydraulic circuit for hydraulic shovel

Also Published As

Publication number Publication date
JPH0342125Y2 (en) 1991-09-04

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