ES400972A2 - Apparatus for excavating deep holes and trenches - Google Patents

Apparatus for excavating deep holes and trenches

Info

Publication number
ES400972A2
ES400972A2 ES400972A ES400972A ES400972A2 ES 400972 A2 ES400972 A2 ES 400972A2 ES 400972 A ES400972 A ES 400972A ES 400972 A ES400972 A ES 400972A ES 400972 A2 ES400972 A2 ES 400972A2
Authority
ES
Spain
Prior art keywords
screw
driving rod
threaded section
trenches
sleeve
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.)
Expired
Application number
ES400972A
Other languages
Spanish (es)
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.)
CEMENTO COMPRESSO FONDISA S P
Original Assignee
CEMENTO COMPRESSO FONDISA S P
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 CEMENTO COMPRESSO FONDISA S P filed Critical CEMENTO COMPRESSO FONDISA S P
Publication of ES400972A2 publication Critical patent/ES400972A2/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N19/00—Lubricant containers for use in lubricators or lubrication systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

An apparatus for excavating holes and trenches, including a multi-jaw grab bucket with a driving rod having a screw-threaded section. The jaws are articulated at one point through connecting arms to a nut screwed on said screw-threaded section and at another point to an articulation member idle on the extremity of said driving rod. The nut screw has a sleeve extending at least over a portion of the driving rod beyond said screw-threaded section and defining therebetween an interspace for a lubricant. A counter sleeve member telescopically engages the sleeve and surrounds at least said screw-threaded section of said driving rod and defining therebetween a further interspace for lubricant. The counter sleeve member is connected with said articulation member. One of the interspaces is connected to an external reservoir with at least one expandable wall.
ES400972A 1971-03-01 1972-03-01 Apparatus for excavating deep holes and trenches Expired ES400972A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21195/71A IT987518B (en) 1971-03-01 1971-03-01 EQUIPMENT FOR EXCAVING HOLES AND TRUNKS OF SIGNIFICANT DEPTH

Publications (1)

Publication Number Publication Date
ES400972A2 true ES400972A2 (en) 1975-01-16

Family

ID=11178196

Family Applications (1)

Application Number Title Priority Date Filing Date
ES400972A Expired ES400972A2 (en) 1971-03-01 1972-03-01 Apparatus for excavating deep holes and trenches

Country Status (12)

Country Link
US (1) US3750770A (en)
BE (1) BE779940R (en)
BR (1) BR7201203D0 (en)
CA (1) CA961510A (en)
CH (1) CH550291A (en)
DE (1) DE2209876A1 (en)
ES (1) ES400972A2 (en)
FR (1) FR2128474B2 (en)
GB (1) GB1382454A (en)
IT (1) IT987518B (en)
NL (1) NL7202530A (en)
ZA (1) ZA721203B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740101C2 (en) * 1977-09-06 1986-04-24 Casagrande & C. S.p.A., Fontanafredda Drilling grapple
DE19848792C1 (en) * 1998-10-22 2000-05-04 Netzsch Mohnopumpen Gmbh Submersible pump device for use in a borehole
EP1439978B1 (en) * 2001-10-23 2007-01-24 Robert Bosch Gmbh Gear drive unit provided with an adapter
DE102017004270A1 (en) * 2017-05-03 2018-11-08 Liebherr-Werk Nenzing Gmbh Diaphragm wall grab with hybrid drive
CN112253024B (en) * 2020-12-08 2023-03-24 中国石油天然气集团有限公司 Oil pipe sand removal device and sand removal method for oil and gas well

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1618294A (en) * 1926-03-30 1927-02-22 Olson Joseph Underreamer
US2203246A (en) * 1938-11-01 1940-06-04 Estate Of Emil H Zum Berge Underreamer
US2645458A (en) * 1950-07-29 1953-07-14 Yost Merrill Hole boring rig
US3113629A (en) * 1960-11-29 1963-12-10 Benoto Sa Boring apparatus whose opening is adjustable
US3194329A (en) * 1964-06-11 1965-07-13 Calweld Inc Hydraulic grab bucket

Also Published As

Publication number Publication date
FR2128474A2 (en) 1972-10-20
IT987518B (en) 1975-03-20
US3750770A (en) 1973-08-07
GB1382454A (en) 1975-01-29
FR2128474B2 (en) 1977-12-23
NL7202530A (en) 1972-09-05
CA961510A (en) 1975-01-21
BE779940R (en) 1972-06-16
BR7201203D0 (en) 1973-05-10
ZA721203B (en) 1972-11-29
CH550291A (en) 1974-06-14
DE2209876A1 (en) 1972-11-02

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