JPS604657U - Backhoe hydraulic system - Google Patents

Backhoe hydraulic system

Info

Publication number
JPS604657U
JPS604657U JP9570483U JP9570483U JPS604657U JP S604657 U JPS604657 U JP S604657U JP 9570483 U JP9570483 U JP 9570483U JP 9570483 U JP9570483 U JP 9570483U JP S604657 U JPS604657 U JP S604657U
Authority
JP
Japan
Prior art keywords
variable
hydraulic
speed
hydraulic system
backhoe
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
Application number
JP9570483U
Other languages
Japanese (ja)
Inventor
稲又　敏彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akebono Brake Industry Co Ltd
Original Assignee
Akebono Brake Industry Co Ltd
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 Akebono Brake Industry Co Ltd filed Critical Akebono Brake Industry Co Ltd
Priority to JP9570483U priority Critical patent/JPS604657U/en
Publication of JPS604657U publication Critical patent/JPS604657U/en
Pending legal-status Critical Current

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) [Abstract] 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図はバックホー装置の全体側面図。第２図は同じく
全体側面図。第３図は本件考案の油圧回路図である。 Ａ・・・レバー類、Ｂ・・・一体ケース、１４．１５・
・・油圧モーター、１６．１７・・・可変油圧モーター
、１８．２０・・・クローラ−コントロールバルブ、１
９・・・速ｉ切ｍえコントロールバルブ、２１゜２２．
２３．２４・・・作業機用コントロールバルブ、２９．
３０・・・変速用油圧シリンダ−。FIG. 1 is an overall side view of the backhoe device. Figure 2 is also an overall side view. FIG. 3 is a hydraulic circuit diagram of the present invention. A...Levers, B...Integrated case, 14.15.
...Hydraulic motor, 16.17...Variable hydraulic motor, 18.20...Crawler control valve, 1
9... Speed i-cut control valve, 21°22.
23.24... Control valve for work equipment, 29.
30... Hydraulic cylinder for speed change.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] バックホーの油圧装置において、走行用可変油圧モータ
ーの速度切換えを、変速油圧シリンダーにて可変油圧モ
ーターの斜板を操作することにより行ない、変速用油圧
シリンダーを操作する速度切換えコントロールバルブの
圧油を、可変油圧モーター用の油圧ポンプの圧油にて兼
用したことを特徴とするバックホーの油圧装置。In the hydraulic system of a backhoe, the speed of the variable hydraulic motor for travel is changed by operating the swash plate of the variable hydraulic motor using the variable-speed hydraulic cylinder, and the pressure oil of the speed-switching control valve that operates the variable-speed hydraulic cylinder is A backhoe hydraulic system characterized by being used as pressure oil for a hydraulic pump for a variable hydraulic motor.
JP9570483U 1983-06-20 1983-06-20 Backhoe hydraulic system Pending JPS604657U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9570483U JPS604657U (en) 1983-06-20 1983-06-20 Backhoe hydraulic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9570483U JPS604657U (en) 1983-06-20 1983-06-20 Backhoe hydraulic system

Publications (1)

Publication Number Publication Date
JPS604657U true JPS604657U (en) 1985-01-14

Family

ID=30228427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9570483U Pending JPS604657U (en) 1983-06-20 1983-06-20 Backhoe hydraulic system

Country Status (1)

Country Link
JP (1) JPS604657U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57205637A (en) * 1981-06-10 1982-12-16 Hitachi Constr Mach Co Ltd Oil-pressure circuit for travelling of construction machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57205637A (en) * 1981-06-10 1982-12-16 Hitachi Constr Mach Co Ltd Oil-pressure circuit for travelling of construction machine

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