JPH0242821U - - Google Patents

Info

Publication number
JPH0242821U
JPH0242821U JP12236688U JP12236688U JPH0242821U JP H0242821 U JPH0242821 U JP H0242821U JP 12236688 U JP12236688 U JP 12236688U JP 12236688 U JP12236688 U JP 12236688U JP H0242821 U JPH0242821 U JP H0242821U
Authority
JP
Japan
Prior art keywords
pilot pressure
speed increase
increase switching
construction machine
speed
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
JP12236688U
Other languages
English (en)
Other versions
JPH0744502Y2 (ja
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 filed Critical
Priority to JP12236688U priority Critical patent/JPH0744502Y2/ja
Publication of JPH0242821U publication Critical patent/JPH0242821U/ja
Application granted granted Critical
Publication of JPH0744502Y2 publication Critical patent/JPH0744502Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Motor Power Transmission Devices (AREA)

Description

【図面の簡単な説明】
第１図は建設機械の内でバツクホー装置の側面
図、第２図は本考案の建設機械の走行油圧装置を
示す油圧回路図、第３図は従来の回路を示す図面
、第４図は従来の他の構成を示す油圧回路図であ
る。 Ａ……増速切換バルブ、Ｂ……多連切換弁、Ｓ
……スイベルジヨイント、Ｍｌ，Ｍｒ……走行油
圧モータ、１，２……増速切換シリンダ、３，４
……パイロツト圧力切換バルブ３、５，６……左
右の油圧モータバルブ、７……チエツクバルブ、
３１……シヤトルバルブ、Ｐ１，Ｐ２，Ｐ３……
油圧ポンプ。

Claims (1)

    【実用新案登録請求の範囲】
  1. パイロツト圧力により走行油圧モータを速度を
    切換える増速切換機構を具備した建設機械におい
    て、パイロツト圧力を左右の走行モータ回路とは
    別の第３のポンプ回路より導入し、第３のポンプ
    回路のタンクへ戻るまでの回路途中に増速切換に
    必要なパイロツト圧力を発生させるクラツキツグ
    圧力を有するチエツク弁を設け、該増速切換弁を
    多連切換弁とは別に配置したことを特徴とする建
    設機械の走行油圧装置。
JP12236688U 1988-09-19 1988-09-19 建設機械の走行油圧装置 Expired - Lifetime JPH0744502Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12236688U JPH0744502Y2 (ja) 1988-09-19 1988-09-19 建設機械の走行油圧装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12236688U JPH0744502Y2 (ja) 1988-09-19 1988-09-19 建設機械の走行油圧装置

Publications (2)

Publication Number Publication Date
JPH0242821U true JPH0242821U (ja) 1990-03-23
JPH0744502Y2 JPH0744502Y2 (ja) 1995-10-11

Family

ID=31370229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12236688U Expired - Lifetime JPH0744502Y2 (ja) 1988-09-19 1988-09-19 建設機械の走行油圧装置

Country Status (1)

Country Link
JP (1) JPH0744502Y2 (ja)

Also Published As

Publication number Publication date
JPH0744502Y2 (ja) 1995-10-11

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