SE8402462D0 - HYDRAULIC ROCK SPLITER - Google Patents

HYDRAULIC ROCK SPLITER

Info

Publication number
SE8402462D0
SE8402462D0 SE8402462A SE8402462A SE8402462D0 SE 8402462 D0 SE8402462 D0 SE 8402462D0 SE 8402462 A SE8402462 A SE 8402462A SE 8402462 A SE8402462 A SE 8402462A SE 8402462 D0 SE8402462 D0 SE 8402462D0
Authority
SE
Sweden
Prior art keywords
pressure jaws
leaf
hydraulic cylinder
pairs
pressure
Prior art date
Application number
SE8402462A
Other languages
Swedish (sv)
Other versions
SE8402462L (en
SE442422B (en
Inventor
S Akanuma
S Takashima
H Imamura
Y Ojiro
Original Assignee
Komatsu Mfg 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 Komatsu Mfg Co Ltd filed Critical Komatsu Mfg Co Ltd
Priority to SE8402462A priority Critical patent/SE442422B/en
Priority to DE19843416957 priority patent/DE3416957A1/en
Publication of SE8402462D0 publication Critical patent/SE8402462D0/en
Publication of SE8402462L publication Critical patent/SE8402462L/en
Publication of SE442422B publication Critical patent/SE442422B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/02—Other methods or devices for dislodging with or without loading by wedges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

A hydraulic block splitter comprises two pressure jaws which can be inserted into a drill hole and accommodate a sliding wedge (18) between them in a displaceable manner. When the sliding wedge (18) is driven deeper into the drill hole by means of a hydraulic cylinder, the pressure jaws are spread apart. According to the invention, each of the pressure jaws is connected to the hydraulic cylinder via two pairs of leaf springs (30) arranged parallel to one another at a distance apart. The two leaf-spring pairs are arranged on opposite sides of the sliding wedge (18) and in each case bear tightly against the corresponding leaf-spring pairs of the other pressure jaw. Whereas the bottom ends of the leaf-spring pairs are rigidly connected to the pressure jaws, the top ends are connected to the hydraulic cylinder via yielding elastic elements (52), so that the leaf springs and the pressure jaws - for example during retraction of the sliding wedge (18) from the drill hole - can be displaced upwards with deformation of the elastic elements without the leaf springs deviating laterally or deflecting. The upwards movement of the pressure jaws and the leaf springs is limited by two pairs of limiting bars which extend downwards from the cylinder body of the hydraulic cylinder and end close above the top ends of the pressure jaws when the pressure jaws are in the normal position. When the elastic elements (52) yield and ... Original abstract incomplete. <IMAGE>
SE8402462A 1984-05-08 1984-05-08 HYDRAULIC MOUNTAIN SPRAYER SE442422B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE8402462A SE442422B (en) 1984-05-08 1984-05-08 HYDRAULIC MOUNTAIN SPRAYER
DE19843416957 DE3416957A1 (en) 1984-05-08 1984-05-08 Hydraulic block splitter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8402462A SE442422B (en) 1984-05-08 1984-05-08 HYDRAULIC MOUNTAIN SPRAYER
DE19843416957 DE3416957A1 (en) 1984-05-08 1984-05-08 Hydraulic block splitter

Publications (3)

Publication Number Publication Date
SE8402462D0 true SE8402462D0 (en) 1984-05-08
SE8402462L SE8402462L (en) 1985-11-09
SE442422B SE442422B (en) 1985-12-23

Family

ID=25821010

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8402462A SE442422B (en) 1984-05-08 1984-05-08 HYDRAULIC MOUNTAIN SPRAYER

Country Status (2)

Country Link
DE (1) DE3416957A1 (en)
SE (1) SE442422B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE519809C2 (en) * 2000-11-27 2003-04-08 Atlas Copco Rock Drills Ab Device for cracking boulders
DE102022125575A1 (en) 2022-10-04 2024-04-04 Almi Machinefabriek Vriezenveen B.V. Hydraulic stone splitter
DE202022105614U1 (en) 2022-10-04 2022-12-07 Almi Machinefabriek Vriezenveen B.V. Hydraulic stone splitter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995906A (en) * 1959-10-28 1961-08-15 A R A Mfg Company Compact cooling unit
US4474410A (en) * 1981-03-31 1984-10-02 Kabushiki Kaisha Komatsu Seisakusho Power-driven, wedge-operated rock splitter

Also Published As

Publication number Publication date
DE3416957A1 (en) 1985-11-14
SE8402462L (en) 1985-11-09
SE442422B (en) 1985-12-23

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