EP2140946B1 - Dispositif de production de vibrations - Google Patents

Dispositif de production de vibrations Download PDF

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Publication number
EP2140946B1
EP2140946B1 EP08011830A EP08011830A EP2140946B1 EP 2140946 B1 EP2140946 B1 EP 2140946B1 EP 08011830 A EP08011830 A EP 08011830A EP 08011830 A EP08011830 A EP 08011830A EP 2140946 B1 EP2140946 B1 EP 2140946B1
Authority
EP
European Patent Office
Prior art keywords
piston
vibration
creator
connecting rod
crank
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 - Fee Related
Application number
EP08011830A
Other languages
German (de)
English (en)
Other versions
EP2140946A1 (fr
Inventor
Christian Heichel
Albrecht Dr.-Ing. Kleibl
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.)
ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH
Original Assignee
ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH
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 ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH filed Critical ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH
Priority to DE502008001334T priority Critical patent/DE502008001334D1/de
Priority to EP08011830A priority patent/EP2140946B1/fr
Priority to AT08011830T priority patent/ATE481184T1/de
Priority to US12/456,842 priority patent/US8276471B2/en
Publication of EP2140946A1 publication Critical patent/EP2140946A1/fr
Application granted granted Critical
Publication of EP2140946B1 publication Critical patent/EP2140946B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/12—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving reciprocating masses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18344—Unbalanced weights

Definitions

  • the invention relates to a vibration generator comprising a linearly guided piston, which is connected via a connecting rod with a crankshaft, wherein the piston is connected to the connecting rod via a piston pin bearing and the crankshaft with the connecting rod via a crank pin.
  • vibration generators such as vibrators, vibrators or vibratory bears are used to bring profiles into the soil or to pull or to compact soil material.
  • the soil is stimulated by vibration and thus reaches a "pseudo-liquid" state.
  • static load By static load the pile can then be pressed into the ground.
  • the vibration is characterized by a linear movement and is regularly generated by pairwise counter-rotating imbalances within a Vibratorgetriebes.
  • the rotating imbalance masses cause a force effect that describes a sinusoid over time.
  • Such a drive acts offset in time alternately in and against the direction of advance.
  • the propulsion direction is ultimately determined by static forces such as dead weight and static loads. Without the superposition of Vibration with static forces, the pile would not move forward, but only swing back and forth.
  • crank gear The directional operation of the crank gear is based on the fact that the connecting rod is designed to be small relative to the crank radius. On the other hand, however, the crank radius itself must be minimized in order to limit the reactive power which increases quadratically with the piston travel.
  • the connecting rod due to the geometry of the connecting rod is longer than the sum of the radii of crank pin and piston pin bearing perform. However, these bearings must be sized accordingly large due to the applied forces.
  • the connecting rod length and crank radius must be selected to be correspondingly large; The resulting large reactive power can be countered by a structurally large moment of inertia of the crankshaft.
  • a disadvantage of this approach is that the vibrator is large and heavy dimensions, resulting in unnecessarily high speeds and friction losses.
  • the invention aims to remedy this situation.
  • the invention has for its object to provide a vibration generator in the manner of a sliding-crank mechanism, which has a small size and in which, moreover, the achieved speeds and friction losses are reduced.
  • This object is achieved in that the crank pin bearing is disposed within the piston bolt bearing.
  • a vibration generator in the manner of a sliding-crank mechanism which has a small size and in which the achieved speeds and friction losses are reduced.
  • the piston is designed such that the crankshaft is arranged centrally of the piston. Since the connecting rod forces in the middle of the piston attack, the bearing forces between the piston and the cylinder in which the piston is guided reduce.
  • the connecting rod is formed as a disc which is movably arranged in a sliding bearing.
  • the "connecting rod length" here is independent of the bearing diameters and is limited only by the crank radius.
  • crank pin bearings are arranged diametrically opposite each other within the piston pin bearing.
  • the piston pin bearing is slidably disposed within the crank pin bearing.
  • the connecting rod on means for relative change in position of the crank pin bearing.
  • the means for relative position change comprise at least one hydraulic cylinder arranged orthogonal to the crank pin in the connecting rod is. Through the hydraulic cylinder, the crank pin bearing in the connecting rod is displaceable.
  • At least one spring-mounted hammer is arranged within the piston.
  • the force is amplified at the lower reversal point of the piston and reduced at the upper reversal point.
  • the spring can be designed so that the striking piece reaches the piston housing and thus supported in the driving direction by hard impacts.
  • the vibration generator selected as an exemplary embodiment essentially comprises a piston 1 which receives a connecting rod 2 movably mounted in a slide bearing, in which a crankshaft 3 is arranged.
  • the piston 1 is designed as a substantially symmetrical body. At a substantially cuboid-shaped center piece 13 close on both sides cylindrically shaped end pieces 11, 12 at. Within the center piece 13, a piston pin bearing 14 is centrally introduced, which receives a circular connecting rod 2.
  • the cylindrical end pieces 11, 12 are solid in the embodiment.
  • the circular executed conrod 2 has a depth which corresponds substantially to the depth of the center piece 13 of the piston 1.
  • two crank pin positions 21 for receiving the crank pin 31 of the crankshaft 3 are introduced into the connecting rod disc diametrically opposite one another.
  • crankshaft 3 If the crankshaft 3 is set in rotation, so takes place via the connecting rod 2, an up and down movement of the linearly guided piston 1.
  • crankpin 31 of the crankshaft 3 is connected to the connecting rod 2 via a crankpin bearing 21;
  • piston 1 is connected to the connecting rod 2 via a piston pin, which is arranged in the piston pin bearing 14 of the connecting rod 2.
  • piston pin bearing 14 is enlarged so far that it goes beyond the crank pin bearing 21.
  • the piston is simultaneously extended so that the crankshaft is centered.
  • the connecting rod 2 Since the connecting rod forces act in the middle of the piston 1, the bearing forces between the piston 1 and the - not shown - cylinder in which the piston 1 is guided reduce.
  • the connecting rod 2 is formed as a disc which moves alternately in a sliding bearing. Due to the plain bearing virtually no noise takes place. Instead of the sliding bearing and roller bearings, such as needle roller bearings can be provided.
  • the connecting rod length is independent of the bearing diameters and is limited only by the crank radius. If the crankshaft is mounted in the lower crank pin bearing 21 of the connecting rod 2, a direction reversal of the working direction of the piston 1 is effected.
  • the end pieces 11, 12 of the piston 1 are hollow.
  • a cylindrically shaped mass piece 15 is arranged.
  • a shock piece 16 is introduced, which is resiliently mounted via a coil spring 17 within the end piece 12.
  • the hammer 16 is mushroom-shaped in the embodiment, wherein the mushroom head 161 rests on the coil spring 17, in which the stem 162 of the hammer 16 engages.
  • the spring 17 is formed such that the stem 162 of the striking piece 17 reaches the housing of the end piece 12 and supported in the driving direction by hard impacts.
  • crank pin bearing a slot in the connecting rod 2, in which a crank pin bearing receiving slider is arranged.
  • a crank pin bearing receiving slider On both sides of the slider hydraulic cylinders are provided, via which the slider is movable in the slot.
  • the crank pin bearing is displaceable in the respective end positions within the slot, whereby a reversal of direction of the working direction of the vibrator without further conversion measures can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Surgical Instruments (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Transmission Devices (AREA)
  • Reciprocating Pumps (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Claims (7)

  1. Dispositif de production de vibrations à mettre en oeuvre dans des vibrateurs, engins de compactage ou moutons vibrants pour enfoncer des profilés dans le sol ou les en extraire, ou aussi pour compacter un matériau au sol, comprenant un piston guidé linéairement relié via une bielle à un vilebrequin, le piston étant relié à la bielle via un palier à goujon et le vilebrequin étant relié à la bielle via un tourillon, caractérisé en ce que la bielle (2) est configurée en disque agencé mobile dans un palier lisse et en ce que le palier (21) du tourillon de vilebrequin est agencé excentré à l'intérieur du palier (14) à goujon du piston.
  2. Dispositif de production de vibrations selon la revendication précédente, caractérisé en ce que le piston (1) est configuré de telle sorte que l'arbre (3) de vilebrequin est agencé au milieu du piston (1).
  3. Dispositif de production de vibrations selon la revendication 1 ou 2, caractérisé en ce qu'à l'intérieur du palier (14) à goujon du piston sont agencés deux paliers (21) à tourillon de vilebrequin se faisant diamétralement face.
  4. Dispositif de production de vibrations selon la revendication 1 ou 2, caractérisé en ce que le palier (31) à tourillon de vilebrequin est agencé déplaçable à l'intérieur du palier (14) à goujon du piston.
  5. Dispositif de production de vibrations selon la revendication 4, caractérisé en ce que la bielle (2) comporte des moyens permettant de modifier la position relative du palier (21) du tourillon de vilebrequin.
  6. Dispositif de production de vibrations selon la revendication 5, caractérisé en ce que les moyens servant à modifier la position relative comprennent un vérin hydraulique agencé perpendiculairement au tourillon (31) du vilebrequin.
  7. Dispositif de production de vibrations selon l'une des revendications précédentes, caractérisé en ce qu'à l'intérieur du piston (1) est agencée une pièce de battage sur palier amortisseur.
EP08011830A 2008-07-01 2008-07-01 Dispositif de production de vibrations Expired - Fee Related EP2140946B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE502008001334T DE502008001334D1 (de) 2008-07-01 2008-07-01 Schwingungserzeuger
EP08011830A EP2140946B1 (fr) 2008-07-01 2008-07-01 Dispositif de production de vibrations
AT08011830T ATE481184T1 (de) 2008-07-01 2008-07-01 Schwingungserzeuger
US12/456,842 US8276471B2 (en) 2008-07-01 2009-06-23 Vibration generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08011830A EP2140946B1 (fr) 2008-07-01 2008-07-01 Dispositif de production de vibrations

Publications (2)

Publication Number Publication Date
EP2140946A1 EP2140946A1 (fr) 2010-01-06
EP2140946B1 true EP2140946B1 (fr) 2010-09-15

Family

ID=39967686

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08011830A Expired - Fee Related EP2140946B1 (fr) 2008-07-01 2008-07-01 Dispositif de production de vibrations

Country Status (4)

Country Link
US (1) US8276471B2 (fr)
EP (1) EP2140946B1 (fr)
AT (1) ATE481184T1 (fr)
DE (1) DE502008001334D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010010037B4 (de) * 2010-03-03 2019-10-31 Bomag Gmbh Stufenlos verstellbarer Schwingungserreger

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1142642A (en) * 1966-02-21 1969-02-12 Harry Edgar Pinkerton Improvements in or relating to hydraulically actuated pumps
GB2143907A (en) * 1983-07-25 1985-02-20 Copeland Corp Hermetic refrigeration compressor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410477A (en) * 1968-01-31 1968-11-12 Hartley Ezra Dale Vacuum pump
DE2545998A1 (de) * 1974-10-15 1976-04-29 Notario Luis Iturriaga Compressor mit wechsellaeufigen kolben
US4230026A (en) * 1978-10-25 1980-10-28 Hartley E Dale Reciprocating piston device
US4607980A (en) * 1984-12-06 1986-08-26 Spetsialnoe Konstruktorskoe Bjuro "Stroimekhanizatsia" Apparatus for compacting soil, concrete and like materials
US5503038A (en) * 1994-04-01 1996-04-02 Aquino; Giovanni Free floating multiple eccentric device
DE19639786A1 (de) 1996-09-27 1998-04-02 Univ Freiberg Bergakademie Mechanisches Vibrationssystem mit rotierender Unwuchtmasse
DE19639787A1 (de) 1996-09-27 1998-04-02 Univ Freiberg Bergakademie Vibrationssystem mit mechanisch bewegter Unwuchtmasse
DE29707017U1 (de) * 1997-04-18 1997-07-10 Wacker Werke Kg Stampfgerät zur Bodenverdichtung
US5871277A (en) * 1997-06-04 1999-02-16 Lash; Richard L. Industrial vibrator
AU2003270961B1 (en) * 2003-06-26 2004-06-24 Arvid Murray Johnson Rotatory crank shaft

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1142642A (en) * 1966-02-21 1969-02-12 Harry Edgar Pinkerton Improvements in or relating to hydraulically actuated pumps
GB2143907A (en) * 1983-07-25 1985-02-20 Copeland Corp Hermetic refrigeration compressor

Also Published As

Publication number Publication date
ATE481184T1 (de) 2010-10-15
EP2140946A1 (fr) 2010-01-06
US8276471B2 (en) 2012-10-02
US20100000351A1 (en) 2010-01-07
DE502008001334D1 (de) 2010-10-28

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