EP0039373B1 - Entraînement résonnant compact pour équipement de terrassement - Google Patents

Entraînement résonnant compact pour équipement de terrassement Download PDF

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Publication number
EP0039373B1
EP0039373B1 EP80107644A EP80107644A EP0039373B1 EP 0039373 B1 EP0039373 B1 EP 0039373B1 EP 80107644 A EP80107644 A EP 80107644A EP 80107644 A EP80107644 A EP 80107644A EP 0039373 B1 EP0039373 B1 EP 0039373B1
Authority
EP
European Patent Office
Prior art keywords
tool
cutter blade
mounting flange
legs
juncture
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
EP80107644A
Other languages
German (de)
English (en)
Other versions
EP0039373A2 (fr
EP0039373A3 (en
Inventor
Raymund Albert Gurries
Harry Jay Stormon
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.)
Reno Salvage Co Te Sparks Nevada Ver St V Am
Original Assignee
Resonant Technology Co
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 Resonant Technology Co filed Critical Resonant Technology Co
Priority to AT80107644T priority Critical patent/ATE21715T1/de
Publication of EP0039373A2 publication Critical patent/EP0039373A2/fr
Publication of EP0039373A3 publication Critical patent/EP0039373A3/en
Application granted granted Critical
Publication of EP0039373B1 publication Critical patent/EP0039373B1/fr
Expired legal-status Critical Current

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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
    • E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
    • E02F3/405—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors using vibrating means
    • 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
    • B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • 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
    • E02F3/401—Buckets or forks comprising, for example, shock absorbers, supports or load striking scrapers to prevent overload

Definitions

  • the present invention relates to an apparatus for resonantly driving a movable cutter blade located at the base of a tool according to the precharacterising part of patent claim 1.
  • An apparatus of such a kind is known from WO 79/01066.
  • a ripping tool driving apparatus in which a ripping tool, positioned below the earth's surface, is driven by the output of a vibrating, preferably resonant, force transmitting beam which has lateral dimensions smaller than those of the ripping tool and is positioned below the earth's surface.
  • the beam is configured to have a single resonant node when restrained from vibrating at such node and is supported so that the single node is above the earth's surface and restrained from vibrating.
  • the output of the beam is enlarged in thickness to form a hammer.
  • the known apparatus is designed to rip the earth to create an open trench or drain to embed pipelines or cables in the earth.
  • the ripping tool is considerably narrower than the tractor mounting said ripping tool.
  • the present application relates to resonance driving equipment, and in particularto the application of resonance technology to loader buckets and similar earth-working equipment.
  • resonant technology i.e. the use of a member vibrating at or near resonance to earth-working equipment.
  • resonant devices use a straight beam which vibrates about two nodes, one end of the beam having the vibratory input and the other end of the beam providing a vibratory output, as also realised in the aforementioned ripping tool.
  • An example of such a device is disclosed in US-A-3,633,683.
  • the ends of the vibrating means are bent to apply forces at a desired angle, as illustrated in the WO document mentioned above.
  • a mining transporter 10 incorporating the features of the present invention is illustrated by way of reference to Figs. 1-3. However, it is to be understood that the apparatus of the present invention could equally as well be incorporated in other types of earth-moving equipment employing an earth-working tool such as a loading bucket or mold board.
  • Mining transporter 10 includes a rear power section 12 and a forward control section 14 connected by articulating joints 16. Hydraulic actuators such as 18 connect sections 12 and 14 of the vehicle for steering.
  • a loading bucket 20 is located at the front of transporter 10.
  • Loading bucket has a generally concave portion 22 and side walls 23,24, forming a forwardly and upwardly opening enclosure.
  • a pair of lift arms 25, 26 are pivotably attached to the forward section 14 of transporter 10 by pins 27,28.
  • the forward ends of lift arms 25, 26, attach to bucket 20 with a pin connection such as 30.
  • Hydraulic cylinders such as 32 run from the forward section 14 of transporter 10 to the midpoint of each lift arm 25,26 to control vertical movement of loader bucket 20.
  • a dump cylinder 34 extends from a post 36 on the forward section 14 of transporter 10 to a pin connection 38 on loader bucket 20.
  • Dump cylinder 24 extends or retracts to rotate loader bucket 20 about the pin connections such as 30 on lift arms 25, 26 to move the loader bucket from a forwardly opening loading and unloading position to an upwardly opening carrying position.
  • a cutter blade 40 is located at the lower front edge of loader bucket 20, and spans the entire width of the loading bucket. Cutter blade 40 is suspended by a pair of hanger arms 41, 42 having pin connections 43, 44, respectively at the upper portion of the bucket. Accordingly, cutter blade 40 is free to reciprocate forwardly and backwardly with respect to the lower front edge of loading bucket 20.
  • a pair of compartments 45,46 are located at the opposite ends of loading bucket 20.
  • Each compartment 45, 46 has a respective forward member 47, 48 having a generally concave configuration.
  • Each angulate resonant beam such as 50 is located in each compartment 45, 46. Beams 50 are mirror images of one another and act in unison. Each angulate beam 50 includes a pair of legs 51, 52 meeting at a central juncture 54. Leg 51 has an integral housing 56 at one end, and an eccentric weight oscillator 58 is located within the housing. Leg 52 has an enlarged portion 60 at its free end forming a hammer, described in more detail hereinafter.
  • Legs 51, 52 of angulate beam 50 meet at an included angle of about 90°.
  • a flange 62 extends inwardly between legs 51, 52 and bisects the included angle between them.
  • a pair of ears 63, 64 extend laterally from flange 62.
  • Bolts, 65, 66 fasten ears 63, 64 of each beam 50 to the forward surfaces 47, 48 of the respective compartments 45,46.
  • Each compartment such as 45 includes a cavity such as 70 projecting forwardly to the forward edge of loading bucket 20.
  • Cutter blade 40 includes a pair of extensions such as 72 extending rearwardly through cavity 70 to a position proximate the front surface of hammer 60 at the end of leg 52.
  • a motor is located within a housing 76 at the upper back surface of loading bucket 20.
  • the motor has output shafts such as 74 extending transversely in each direction, and the eccentric weight oscillators such as 58 are mounted on the output shafts of the motor.
  • Eccentric weight oscillator 58 is rotated at a frequency at or near the resonant frequency of beam 50, exciting the beam to at least near resonance.
  • hammer 60 At its neutral or rest position, hammer 60 is spaced slightly behind the extension 72 projecting rearwardly from cutter blade 40.
  • hammer 60 at the end of leg 52 vibrates about its neutral position, and strikes the rear of extension 72 during its forward stroke.
  • forward impulses are applied to cutter blade 40 to drive the cutter blade forward.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Knives (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Earth Drilling (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Sawing (AREA)

Claims (6)

1. Appareil pour entraîner en résonnance une lame de coupe mobile (40) située à la base d'un outil, cet appareil comprenant:
une flèche coudée (50) présentant des première et seconde branches (51, 52) qui se rencontrent à une liaison (54) selon un angle inscrit d'environ 90°, ainsi qu'une flasque de montage (62) qui s'étend à partir de ladite liaison dans le même plan que les branches (51, 52), ladite flèche (50) possédant, lorsqu'elle est montée sur la flasque de montage (62), une fréquence de résonnance ayant un point nodal à la liaison (54) et des premier et second ventres aux extrémités des branches respectives (51, 52), ladite flèche (50) étant conçue pour recevoir des vibrations provenant d'un oscillateur (58) à l'extrémité libre de la première branche (51) de cette flèche (50), et comportant une partie élargie constituant un marteau (60) soumis à une charge à l'extrémité libre de la seconde branche (52) de ladite flèche (50); et des moyens (47, 20) pour supporter la flasque de montage (62) de façon que la position neutre de la seconde extrémité soit espacée de l'arrière de la lame de coupe (40), dans les limites de la distance d'impact de cette dernière, de telle sorte qu'une vibration de ladite seconde extrémité imprime, à la lame de coupe (40), des impulsions vers l'avant pour entrainer cette lame en un va-et- vient vers l'avant, caractérisé par le fait que ledit appareil consiste en un agencement jumelé comprenant
une paire desdites flèches coudées (50), espacées latéralement l'une de l'autre et assujetties à des extrémités opposées de l'outil (20) de manière à heurter la lame de coupe (40) à ses extrémités opposées, lesdites flèches étant symétriques et fonctionnant couplées de façon à imprimer, à la lame de coupe (40), des impulsions vers l'avant à ses extrémités opposées; par le fait que chacune desdites flasques de montage s'étend vers l'intérieur entre lesdites branches et est fixée audit outil; et par le fait que chacune desdites flèches (50) présente un boîtier solidaire (56) à l'extrémité libre de la première branche (51), ledit boîtier (56) renfermant l'oscillateur (58).
2. Appareil selon la revendication 1, dans lequel l'outil consiste en une chargeuse (20) pour un dispositif (10) de fouillage du sol.
3. Appareil selon la revendication 2, dans lequel le dispositif de fouillage du sol est un transporteur minier (10).
4. Appareil selon l'une des revendications 1 à 3, dans lequel l'outil (20) comprend deux compartiments (45, 46) ménagés dans la surface antérieure de l'outil (20) à ses extrémités opposées, et s'étendant vers l'avant par rapport à la surface de travail de cet outil (20), lesdits compartments (45, 46) présentant une surface antérieure sensiblement concave; et dans lequel la flasque de montage (62) est fixée à l'arrière de la surface antérieure des compartiments (45, 46).
5. Appareil selon la revendication 4, dans lequel les deux flèches (50) sont logées dans les compartiments respectifs (45, 46), auxquels elles sont adaptées.
6. Appareil selon les revendications précédentes, dans lequel la lame de coupe (40) possède des prolongements vers l'arrière (72), qui s'étendent jusqu'à un .emplacement situé dans les limites de la distance d'impact des marteaux (60).
EP80107644A 1980-05-02 1980-12-04 Entraînement résonnant compact pour équipement de terrassement Expired EP0039373B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80107644T ATE21715T1 (de) 1980-05-02 1980-12-04 Kompakter resonanzantrieb fuer vorrichtungen zur bodenbewegung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14592180A 1980-05-02 1980-05-02
US145921 1993-10-29

Publications (3)

Publication Number Publication Date
EP0039373A2 EP0039373A2 (fr) 1981-11-11
EP0039373A3 EP0039373A3 (en) 1982-12-01
EP0039373B1 true EP0039373B1 (fr) 1986-08-27

Family

ID=22515128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80107644A Expired EP0039373B1 (fr) 1980-05-02 1980-12-04 Entraînement résonnant compact pour équipement de terrassement

Country Status (6)

Country Link
EP (1) EP0039373B1 (fr)
JP (1) JPS57238A (fr)
AT (1) ATE21715T1 (fr)
BR (1) BR8100552A (fr)
CA (1) CA1144210A (fr)
DE (1) DE3071729D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5926891A (ja) * 1982-08-01 1984-02-13 株式会社タダノ クレ−ンの作業状態表示装置
FR2602256A1 (fr) * 1986-07-30 1988-02-05 Koehl Jean Marie Appareil de terrassement, remblaiement, compactage, battage, arrachage, decoupe d'enrobes a monter sur pelle hydraulique
US4821808A (en) * 1988-02-04 1989-04-18 Resonant Technology Company Resonantly driven earth moving blade
US4892359A (en) * 1988-06-10 1990-01-09 Ottestad Jack Benton Bucket system with percussive penetration member
JPH0291779U (fr) * 1989-01-09 1990-07-20
US5269382A (en) * 1992-05-08 1993-12-14 Esco Corporation Impact device
JP2017048572A (ja) * 2015-08-31 2017-03-09 株式会社小松製作所 作業機械

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3077999A (en) * 1960-04-27 1963-02-19 Caterpillar Tractor Co Multi-purpose loader bucket
US3238646A (en) * 1962-08-20 1966-03-08 Caterpillar Tractor Co Loader bucket with a vibrating blade
DK118598B (da) * 1967-09-28 1970-09-07 Svenska Hymas Ab Graveskovl.
US3795070A (en) * 1973-03-12 1974-03-05 O Bronson Multipurpose bucket for heavy-duty construction equipment
US3867987A (en) * 1973-07-13 1975-02-25 Case Co J I Vibratory bulldozer blade
US3857447A (en) * 1974-01-11 1974-12-31 Caterpillar Tractor Co Bulldozer blade with vibrating ripper shank
ATE5224T1 (de) * 1978-05-12 1983-11-15 The Gurries Co. Antriebsapparat fuer werkzeug.

Also Published As

Publication number Publication date
DE3071729D1 (en) 1986-10-02
JPS57238A (en) 1982-01-05
EP0039373A2 (fr) 1981-11-11
BR8100552A (pt) 1982-01-12
ATE21715T1 (de) 1986-09-15
JPH0135131B2 (fr) 1989-07-24
CA1144210A (fr) 1983-04-05
EP0039373A3 (en) 1982-12-01

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