JPS61270085A - 液圧式打撃装置の切換弁機構 - Google Patents

液圧式打撃装置の切換弁機構

Info

Publication number
JPS61270085A
JPS61270085A JP11119385A JP11119385A JPS61270085A JP S61270085 A JPS61270085 A JP S61270085A JP 11119385 A JP11119385 A JP 11119385A JP 11119385 A JP11119385 A JP 11119385A JP S61270085 A JPS61270085 A JP S61270085A
Authority
JP
Japan
Prior art keywords
valve
chamber
switching valve
piston
hydraulic
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
JP11119385A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0516990B2 (enrdf_load_html_response
Inventor
信義 福井
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.)
Furukawa Mining Co Ltd
Original Assignee
Furukawa Mining 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 Furukawa Mining Co Ltd filed Critical Furukawa Mining Co Ltd
Priority to JP11119385A priority Critical patent/JPS61270085A/ja
Publication of JPS61270085A publication Critical patent/JPS61270085A/ja
Publication of JPH0516990B2 publication Critical patent/JPH0516990B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
JP11119385A 1985-05-23 1985-05-23 液圧式打撃装置の切換弁機構 Granted JPS61270085A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11119385A JPS61270085A (ja) 1985-05-23 1985-05-23 液圧式打撃装置の切換弁機構

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11119385A JPS61270085A (ja) 1985-05-23 1985-05-23 液圧式打撃装置の切換弁機構

Publications (2)

Publication Number Publication Date
JPS61270085A true JPS61270085A (ja) 1986-11-29
JPH0516990B2 JPH0516990B2 (enrdf_load_html_response) 1993-03-05

Family

ID=14554851

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11119385A Granted JPS61270085A (ja) 1985-05-23 1985-05-23 液圧式打撃装置の切換弁機構

Country Status (1)

Country Link
JP (1) JPS61270085A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008517192A (ja) * 2004-10-20 2008-05-22 アトラス コプコ ロツク ドリルス アクチボラグ パーカッション装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008517192A (ja) * 2004-10-20 2008-05-22 アトラス コプコ ロツク ドリルス アクチボラグ パーカッション装置

Also Published As

Publication number Publication date
JPH0516990B2 (enrdf_load_html_response) 1993-03-05

Similar Documents

Publication Publication Date Title
US4951757A (en) Hydraulic striking device with impact frequency control
US5392865A (en) Hydraulic percussion apparatus
US7174824B2 (en) Control valve in a percussion device and a method comprising a closed pressure space at the end position of the piston
KR100343888B1 (ko) 가스와 유압을 이용한 브레이커
US20050194225A1 (en) Air cylinder with high frequency shock absorber and accelerator
US4100977A (en) Drop hammers
JPS61270085A (ja) 液圧式打撃装置の切換弁機構
CN212175907U (zh) 一种自动调节行程的液压破碎锤
US5984026A (en) Pressure converter
KR200253891Y1 (ko) 공유압식 브레이커
JPS6125784A (ja) 液圧式打撃装置のストロ−ク可変機構
JPH09131671A (ja) 油圧ブレーカ
CN212427311U (zh) 一种上壳体内置阀的液压破碎锤
JPH0224623Y2 (enrdf_load_html_response)
JPS6154916B2 (enrdf_load_html_response)
JPS6119574A (ja) 液圧式打撃機構
JPH0750151Y2 (ja) 油圧ブレーカ
JP2004351529A (ja) 油圧ブレーカ
JPS6161947B2 (enrdf_load_html_response)
JPS5816990B2 (ja) 自励振式液圧衝撃機
JPS6161946B2 (enrdf_load_html_response)
KR950001841Y1 (ko) 파쇄기
KR200183464Y1 (ko) 유압 브레이커
JPH0957649A (ja) 油圧打撃装置
JPH0740082Y2 (ja) 圧力補償型方向制御弁

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees