US3550694A - Vibrohammer - Google Patents

Vibrohammer Download PDF

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Publication number
US3550694A
US3550694A US778514A US3550694DA US3550694A US 3550694 A US3550694 A US 3550694A US 778514 A US778514 A US 778514A US 3550694D A US3550694D A US 3550694DA US 3550694 A US3550694 A US 3550694A
Authority
US
United States
Prior art keywords
vibrohammer
anvil
wedge
bolt
regulator
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 - Lifetime
Application number
US778514A
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English (en)
Inventor
Czeslaw Winceuty Gawlik
Dionizy Simson
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.)
Zakłady Remontu Maszyn Budowlanych NRZ
Original Assignee
Zakłady Remontu Maszyn Budowlanych NRZ
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
Priority claimed from PL124044A external-priority patent/PL61179B1/pl
Application filed by Zakłady Remontu Maszyn Budowlanych NRZ filed Critical Zakłady Remontu Maszyn Budowlanych NRZ
Application granted granted Critical
Publication of US3550694A publication Critical patent/US3550694A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/18—Placing by vibrating
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D11/00—Methods or apparatus specially adapted for both placing and removing sheet pile bulkheads, piles, or mould-pipes

Definitions

  • the said vibrohammer includes the wedge with longitudinal and transverse grooves connecting the grip of driven element with the anvil, springs, shaped conically and clamped preliminary by weight of vibrator, working on tension, as well as suspension gear, a rope of which is engaged below and above of center of gravity vibrohammer.
  • PATENTED BEBZS I970 SHEET 2 OF 4 VIBROHAMMER This invention relates to a vibrohammer used for driving in and extracting piles or similar elements from the ground etc.
  • the vibrator hammer is connected to an anvil by means of at least two springs.
  • Vibrohammers in production to date have had numerous disadvantages resulting from the poor construction of some of their assemblies, which cause a lot of difficulties during work and servicing of the Vibrohammers, as well as an early wearout of their individual parts and assemblies.
  • One assembly is a spring link which is meant to protect the body of the regulator of the vibrohammer from the vibrations produced by the anvil when it is struck by the ram of. the vibrohammer during operation.
  • Previous spring links were made of elastic materials, such as rubber rings, which were supported on the front surface of the body of the regulator, and were fastened to this body by means of nuts screwed on threaded portions of the anvil.
  • the body of the regulator is mounted on the anvil by means of slip rings, and is protected from torsional vibrations with a wedge or a roller inserted into slides mounted on the anvil.
  • Such spring links absorb only longitudihal vibrations, while transverse and torsional vibrations are transmitted to the body of the regulator without any absorption at all. This is the cause of the fast wearing out of the metal parts and has an adverse influence on the work of the other assemblies of the vibrohammer which are mounted on this body.
  • cylindrical bolts are used which are forced into the anvil holes with a moderate pressure.
  • the bolt becomes loose from repeated blows of the ram and consequently causes an early wearout of the surfaces of the holes and the bolt itself.
  • Springs are particularly sensitive elements of the vibrohammer because various stresses are generated along the longitudinal axis of the springs, by vibrations of the machine and its sideways motions.
  • Vibrohammers to date were suspended on steel cables hung from a hook on the crane.
  • the cables were wound around dogs mounted on the body of the regulator near the center of gravity of the machine.
  • the bolt is mounted in expanding sleeves, slid on tapered ends of the bolts, under the pressure of a screw located in the bolt.
  • the wedge is firmly held by means of one or two toothed lock plates fastened to the wedge by means of a screw. These lock plates are connected to the wedge in such a way that the I screw is free from the force of inertia of the lock plates.
  • the wedge has transverse grooves and recesses cut along its length. These grooves match teeth in the lock plates, and their rims bear against outside walls of the recesses.
  • Another feature of the machine is that the cable is introduced to the machine below its center of gravity, and the center of gravity is held by a clamp mounted on the body of the regulator.
  • Protection against the loosening of the wedge is effected by lock plates clamping the wedge and a screw free from forces of inertia generated by the lock plates. It protects the screw from breakage and ensures a durable connection of the anvil and the grip. If by chance the wedge gets loose, it can easily be tightened by resetting the lock plates and refastening them to the wedge.
  • Cables which are joined below the center of gravity with clamps to keep the cables inside the center of gravity produced a technical effect in the form of utilization of the full lifting capacity of the crane and consequently accelerated pulling of the elements out of the ground.
  • FIG. 1 is shown from a front view in partial vertical section
  • FIG. 2 is a perspective view of a spring link, also partially in section;
  • FIG. 3 is a cross section of the vibrohammer taken along line 3-3 of FIG. 1;
  • FIG. 4 is an exploded perspective view of the lock plates
  • FIG. 5 is schematic front view of the machine suspended on cables introduced through clamps
  • FIG. 6 is the vibrohammer of FIG. 5 in side view
  • FIG. 7 is a front view of the same machine seen with cable put around a dog mounted in the bottom portion of the body of the regulator;
  • FIG. 8 shows the cable in its clamp
  • FIG. 9 shows the cable dog with a safety plate securing the cable in place.
  • the vibrohammer consists of a vibrator 1 with a ram 2, anvil 3, body of the regulator 4, and a grip 6.
  • the vibrator is mounted on springs 7 fastened to the body of the regulator.
  • the regulator is fixed to the anvil by means of spring links 8 formed in the shape of rings with beads 9.
  • the body of the regulator has seats 10 and recesses 11, in which the spring link is mounted.
  • the anvil has flats 12 which bear upon beads of the spring link.
  • the spring links exert pressure upon seats 10 through nuts 13 equipped with flanges 14.
  • the seats 10 and flanges 14 are shaped in such a way that they embrace ring 8 of the spring link on its outside and inside diameters and compress it between themselves as a result of tightening the nuts 13.
  • the body of the thus mounted regulator has no direct contact with the anvil 3, but is at the same time connected to it.
  • both holes of the anvi]. there is a bolt 15 mounted with a hole drilled along its longitudinal axis. Both ends of the bolt are formed in the shape of a tapered frustum inserted into expanding sleeves 16 which fix the bolt in the anvil holes. A screw 17 is fitted inside the bolt. When nuts 18 are tightened, the expanding sleeves are forced on the tapered ends of the bolt to fill even the smallest gap due to pressure of the screw 17. Owing to tapered ends of the bolt, the surfaces in the holes of the ram can be straight, because regardless of position of the ram, this surface will have a close and proper contact with the bolt.
  • a wedge I9 fastening the grip to the anvil is inserted into the anvil.
  • This wedge has recesses 20 cut along its longitudinal axis and grooves 21 cut across and between these recesses.
  • the wedge has one or two lock plates 23 with teeth out on their surfaces to engage the grooves cut on the wedge.
  • the length of the lock plates is exactly the same as the distance between the two extreme walls of the recesses. Due to this fact the lock plates, after locating the wedge, are firmly held between these walls.
  • This system of the wedge with its lock plates prevents the wedge from creeping out of the hole and removes all forces from screw 24, due to inertia of the lock plates generated during operation of the vibrohammer. Because these plates are engaged by grooves and compressed between walls of the recesses, they have no influence on the screw. When the wedge becomes loose, its can be readily tightened by driving the wedge deeper and fixing it in its new position. It is clear that the lock plates prevent the wedge from getting out of place when the system rests on the anvil.
  • springs 7 are fastened by their ends to the body of the regulator and to the vibrohammer.
  • the springs may be fixed directly or indirectly, that is, through other components of the vibrohammer.
  • the springs 7 have different pitch diameters. The smallest diameter is directed towards the body of the regulator. Such assembly of the springs ensures that they will operate on stretching forces for both positive and negative work.
  • the vibrohammer which is adapted for extracting elements
  • the vibrohammer may also be suspended in a different way;
  • a vibrohammer comprising a vibrator, a regulating device, spring means joining said regulating device to said vibrator, an anvil, ring-type elastic links mounting said regulating device on said anvil to transmit the vibration to the element being worked, a bolt mounted in said anvil, a holder for the element being worked and a key provided with means provided for fastening a rope sling to said vibrohammer, wherein the improvement comprises said ring-type elastic link being provided with a bead, recesses formed in the regulator device, and flats formed in said anvil, said bead being secured in said recesses and flats, bolt means passing through a hole in the anvil, expansion sleeve means mounted on said bolt means to secure it in said hole, key means provided with longitudinal grooves and with transverse grooves, plates mounted in said grooves to secure the key means against loosening, and means to secure a rope of a sling supporting said vibrohammer below the center of gravity of said vibrohammer and clamping devices mounted on the
  • a vibrohammer according to claim 1 wherein the bolt has both ends shaped in the form of truncated cones and has a through hole along its axis.
  • a vibrohammer according to claim 3 wherein the conically shaped bolt ends are mounted in said expansion sleeves which fix the bolt in the hole in the anvil due to pushing of these expansion sleeves on the cones of the bolt.
  • a vibrohammer according to claim 4 wherein pushing of said expansion sleeves on the conical bolt ends is effected by a preliminary stress imparted by a threaded shaft set in the bolt hole and nuts tightly mounted on the ends of said shaft.
  • a vibrohammer according to claim 1 further comprising plates provided with grooves which mesh with the grooves in the key, whereby after being fastened to the key with their sides meshing they are supported on the border planes of the recesses.
  • a vibrohammer according to claim 1 wherein the rope of the sling is put through holes formed in the body of the holder and hooked on catches set in the lower part of the body of the regulator and guided in clamping devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Earth Drilling (AREA)
US778514A 1967-12-12 1968-11-25 Vibrohammer Expired - Lifetime US3550694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL124044A PL61179B1 (de) 1967-12-12

Publications (1)

Publication Number Publication Date
US3550694A true US3550694A (en) 1970-12-29

Family

ID=19949812

Family Applications (1)

Application Number Title Priority Date Filing Date
US778514A Expired - Lifetime US3550694A (en) 1967-12-12 1968-11-25 Vibrohammer

Country Status (8)

Country Link
US (1) US3550694A (de)
AT (1) AT297084B (de)
CH (1) CH488063A (de)
DE (1) DE1813782A1 (de)
FR (1) FR1593822A (de)
GB (1) GB1242706A (de)
NL (1) NL6817753A (de)
SE (1) SE363596B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998063A (en) * 1976-02-17 1976-12-21 Harders Holton G Method and apparatus for removing construction piles
US4557630A (en) * 1984-06-11 1985-12-10 Neil Joseph S Vibratory clamping device for use with an excavator in supporting and placing sheeting when excavating in sand, running sand and silt
WO2000041851A1 (en) * 1999-01-11 2000-07-20 International Construction Equipment, Inc. Impact absorbing fluid operated hammer
CN111042129A (zh) * 2019-12-24 2020-04-21 广东力源液压机械有限公司 一种液压打桩机锤芯的防松脱方法及装置
US10724385B2 (en) 2016-11-23 2020-07-28 General Electric Company Installation or removal of turbine blade at turbine blade base
US11014205B2 (en) 2016-11-04 2021-05-25 General Electric Company Installation or removal of turbine blade at turbine blade base

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5830815Y2 (ja) * 1979-05-14 1983-07-07 株式会社新潟鐵工所 アスフアルトフイニツシヤ等における敷きならし装置
DE3112396A1 (de) * 1981-03-28 1982-10-07 Paul 5940 Lennestadt Schmidt Vorrichtung zum rammen und ziehen von spundbohlen
DE102011120773B4 (de) 2011-12-09 2022-03-03 Thyssenkrupp Infrastructure Gmbh Vorrichtung, Einrichtung und Verfahren, insbesondere zur Gründung von Offshore-Strukturen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998063A (en) * 1976-02-17 1976-12-21 Harders Holton G Method and apparatus for removing construction piles
US4557630A (en) * 1984-06-11 1985-12-10 Neil Joseph S Vibratory clamping device for use with an excavator in supporting and placing sheeting when excavating in sand, running sand and silt
WO2000041851A1 (en) * 1999-01-11 2000-07-20 International Construction Equipment, Inc. Impact absorbing fluid operated hammer
US6135214A (en) * 1999-01-11 2000-10-24 International Construction Equipment, Inc. Impact absorbing fluid operated hammer
US11014205B2 (en) 2016-11-04 2021-05-25 General Electric Company Installation or removal of turbine blade at turbine blade base
US10724385B2 (en) 2016-11-23 2020-07-28 General Electric Company Installation or removal of turbine blade at turbine blade base
CN111042129A (zh) * 2019-12-24 2020-04-21 广东力源液压机械有限公司 一种液压打桩机锤芯的防松脱方法及装置
CN111042129B (zh) * 2019-12-24 2024-04-05 广东力源液压机械有限公司 一种液压打桩机锤芯的防松脱方法及装置

Also Published As

Publication number Publication date
NL6817753A (de) 1969-06-16
GB1242706A (en) 1971-08-11
SE363596B (de) 1974-01-28
CH488063A (de) 1970-03-31
AT297084B (de) 1972-03-10
FR1593822A (de) 1970-06-01
DE1813782A1 (de) 1969-07-10

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