SE8404433D0 - PROCEDURE AND DEVICE FOR BRINGING A FORM, AS A DRILLING TOOL, TO ENTER A MATERIAL, LIKE BERG - Google Patents

PROCEDURE AND DEVICE FOR BRINGING A FORM, AS A DRILLING TOOL, TO ENTER A MATERIAL, LIKE BERG

Info

Publication number
SE8404433D0
SE8404433D0 SE8404433A SE8404433A SE8404433D0 SE 8404433 D0 SE8404433 D0 SE 8404433D0 SE 8404433 A SE8404433 A SE 8404433A SE 8404433 A SE8404433 A SE 8404433A SE 8404433 D0 SE8404433 D0 SE 8404433D0
Authority
SE
Sweden
Prior art keywords
percussion
drilling tool
berg
bringing
enter
Prior art date
Application number
SE8404433A
Other languages
Swedish (sv)
Other versions
SE8404433L (en
SE466949B (en
Inventor
Ola Johnsson
Karl Erik Ranman
Original Assignee
Ola Johnsson
Karl Erik Ranman
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 Ola Johnsson, Karl Erik Ranman filed Critical Ola Johnsson
Priority to SE8404433A priority Critical patent/SE466949B/en
Publication of SE8404433D0 publication Critical patent/SE8404433D0/en
Publication of SE8404433L publication Critical patent/SE8404433L/en
Publication of SE466949B publication Critical patent/SE466949B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

In a method and arrangement for percussion drilling, the percussive action on the drilling tool is such that this applies a shockwave to the material in which drilling is to take place. This shockwave is generated by means of at least two percussions by the percussion equipment. More particularly, these percussions are exerted in such a way that one percussion comes before the other, but such that the tension b resulting from the second percussion of the drilling tool against the material is obtained before the tension a from the first percussion against the material has ceased. The second percussion is made with greater energy than the first one. <IMAGE>
SE8404433A 1984-09-05 1984-09-05 Method and arrangement for causing an object, such as a drilling tool, to penetrate a material, such as rock SE466949B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8404433A SE466949B (en) 1984-09-05 1984-09-05 Method and arrangement for causing an object, such as a drilling tool, to penetrate a material, such as rock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8404433A SE466949B (en) 1984-09-05 1984-09-05 Method and arrangement for causing an object, such as a drilling tool, to penetrate a material, such as rock

Publications (3)

Publication Number Publication Date
SE8404433D0 true SE8404433D0 (en) 1984-09-05
SE8404433L SE8404433L (en) 1986-03-06
SE466949B SE466949B (en) 1992-05-04

Family

ID=20356915

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8404433A SE466949B (en) 1984-09-05 1984-09-05 Method and arrangement for causing an object, such as a drilling tool, to penetrate a material, such as rock

Country Status (1)

Country Link
SE (1) SE466949B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI941689A (en) * 1994-04-13 1995-10-14 Doofor Oy A method and drill for adjusting the shape of an impact pulse transmitted to a drill bit

Also Published As

Publication number Publication date
SE8404433L (en) 1986-03-06
SE466949B (en) 1992-05-04

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