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EP0475965A1 - A device for a sorting shovel. - Google Patents

A device for a sorting shovel.

Info

Publication number
EP0475965A1
EP0475965A1 EP19900908087 EP90908087A EP0475965A1 EP 0475965 A1 EP0475965 A1 EP 0475965A1 EP 19900908087 EP19900908087 EP 19900908087 EP 90908087 A EP90908087 A EP 90908087A EP 0475965 A1 EP0475965 A1 EP 0475965A1
Authority
EP
European Patent Office
Prior art keywords
grid
movement transmission
transmission device
bucket
flexible
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.)
Granted
Application number
EP19900908087
Other languages
German (de)
French (fr)
Other versions
EP0475965B1 (en
Inventor
Tord Jonsson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0475965A1 publication Critical patent/EP0475965A1/en
Application granted granted Critical
Publication of EP0475965B1 publication Critical patent/EP0475965B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
    • 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
    • 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
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device

Definitions

  • the present invention relates to a separator bucket device comprising a grid for separation of excavated material, especially road material containing gravel, of the kind described in the introduction of claim 1.
  • Separator buckets of the above-mentioned kind are previously known and are usually mounted on wheeled loaders which after cutting of road borders by means of, for example, an excavator take care of the road material cut away in order to return gravel to the road and to remove material unsuitable to be used as road surfacing.
  • a disadvantage of the known separator buckets is that parts of these have a limited life and must be exchanged rather often, which is time-consuming and uneconomical. This particularly applies to the rubber bushings and the bearings connecting the eccentrics of the drive shaft with the grid portions forming a grid.
  • Figure 1 is a partly cut away perspective view of a separator bucket comprising the device according to the invention
  • Figure 2 is a schematic view, seen from the rear, of details of the device according to Figure 1
  • Figure 3 is a side view of the details according to Figures 2 and 3, seen from the right, and
  • Figure 4 is an exploded view of details of the device according to Figures 1-3.
  • the bucket 1 has no real base but is provided with a grid in the form of two grid portions 6 and 7 partly inserted in each other.
  • Each grid portion comprises a number of parallel rods 6a and 7a respectively, one end of each rod being rotatably connected with a shaft mounted between the side walls 3 adjacent to the cutting plate 4.
  • the other end of each rod 6a is connected with a front plate 9, and the other end of each rod 7a is connected with a rear plate 10 which is parallel to the front plate 9 and located partly under the same.
  • the plates 9 and 10 are vertically movable and receive such reciprocal movement in the way described below.
  • a drive shaft 12 is rotatably mounted.
  • the drive shaft 12 is driven by a hydraulic motor 13 mounted on the frame 5.
  • the drive shaft 12 is provided with four eccentric discs 14 ( Figures 3 and 4) surrounded by bearing housings 15 and 16. Through their parts located furthest away from the drive shaft 12, the eccentric discs 14 located in the bearing housings 15 are displaced 180° relative to the corresponding parts of two other eccentric discs located in the bearing housings 16.
  • the bearing housings 15 are connected with the front plate 9, and the bearing housings 16 are connected with the rear plate 10 in the way described below and shown especially in Figure 4.
  • the bearing housings 15 and 16 are provided with projections 15a and 16a respectively, each of which has a cone-shaped body 17 mounted thereto.
  • a flexible member in the form of a spring steel member 18 with welded reinforcement plate 23 is provided with a hole 18a.
  • a conical sleeve 19 fits to the body 17 and into the hole 18a.
  • the arms 18 are connected with the plates 9 and 10 in the same way as the ends of the arms 18 facing towards the shaft 12 are connected with the projections 15a, 16a, as shown in Figure 4 wherefore an explanation will not be required.
  • the details of the lower attachment device shown in Figure 4 are provided with the same reference numbers, though primed, as the corresponding details of the upper attachment device.
  • attachment devices 17- 22 and 17'-22' there is provided a play-free, easily dismount- able and mountable as well as reliable connection between the bearing housings 15, 16 and the grid portions 6 and 7 of the grid with the rods 6a and 7a.
  • the motor 13 is started, the plates 9 and 10 being moved vertically towards and from each other because of the two bearing housings 15 acted on by the eccentric discs 14 displacing the associated arms 18 upwardly while the two other bearing housings 16 acted on by the eccentric discs 14 displace the associated arms downwardly, and vice versa.
  • the two grid portions will receive contrary rotary movements about the shaft 8 such that large pieces of, for example, soil, will be disintegrated, and gravel and other small particles will enter the spaces between the rods and fall through these on to the road, whereas large pieces of, for example, turf will stay on the grid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Sorting Of Articles (AREA)

Abstract

Un système de triage pour pelle mécanique avec une grille pour trier les matériaux excavés, la grille comprenant au moins deux parties de grille véritablement parallèles (6, 7) insérées l'une dans l'autre, une des extrémités de chaque partie de grille étant montée de manière rotationnelle sur la pelle mécanique (voir 8) et l'extrémité opposée de chaque partie de grille étant reliée, par un système de transmission du mouvement (15-22), à au moins un arbre de transmission (12) doté d'excentriques (14), de telle sorte que par la rotation de l'arbre de transmission, les parties de grille subissent un mouvement de rotation de l'une vers l'autre dans le bâti de la pelle mécanique. Le système de transmission du mouvement se compose de membres flexibles et allongés (18), dont les extrémités sont reliées fixement aux parties de grille (6, 7) ainsi qu'aux éléments (15, 16) du système de transmission du mouvement monté sur les excentriques.A sorting system for a mechanical shovel with a grid for sorting the excavated material, the grid comprising at least two truly parallel grid parts (6, 7) inserted one inside the other, one end of each grid part being rotatably mounted on the mechanical shovel (see 8) and the opposite end of each grid part being connected, by a movement transmission system (15-22), to at least one transmission shaft (12) provided with 'eccentrics (14), so that by the rotation of the drive shaft, the grid parts undergo a rotational movement from one to the other in the frame of the mechanical shovel. The movement transmission system consists of flexible and elongated members (18), the ends of which are fixedly connected to the grid parts (6, 7) as well as to the elements (15, 16) of the movement transmission system mounted on the eccentrics.

Description

A DEVICE FOR A SORTING SHOVEL
Technical field
The present invention relates to a separator bucket device comprising a grid for separation of excavated material, especially road material containing gravel, of the kind described in the introduction of claim 1.
Prior art
Separator buckets of the above-mentioned kind are previously known and are usually mounted on wheeled loaders which after cutting of road borders by means of, for example, an excavator take care of the road material cut away in order to return gravel to the road and to remove material unsuitable to be used as road surfacing.
A disadvantage of the known separator buckets is that parts of these have a limited life and must be exchanged rather often, which is time-consuming and uneconomical. This particularly applies to the rubber bushings and the bearings connecting the eccentrics of the drive shaft with the grid portions forming a grid.
Description of the invention
It is an object of the present invention to improve the known separator buckets and to eliminate their above-mentioned disadvantages in order to ensure perfect functioning during a long period of time and to facilitate removal and mounting of parts, when worn parts have to be exchanged.
This object is achieved by giving the device according to the invention the features stated in the characterizing portions of the claims.
Description of the figures
Figure 1 is a partly cut away perspective view of a separator bucket comprising the device according to the invention,
Figure 2 is a schematic view, seen from the rear, of details of the device according to Figure 1, Figure 3 is a side view of the details according to Figures 2 and 3, seen from the right, and
Figure 4 is an exploded view of details of the device according to Figures 1-3.
Preferred embodiment
The separator bucket shown in Figure 1 and indicated by
I, comprises a rear part 2, two side walls 3, a cutting plate 4 and a frame 5 extending between the side walls 3. Said parts are welded to each other. The bucket 1 has no real base but is provided with a grid in the form of two grid portions 6 and 7 partly inserted in each other. Each grid portion comprises a number of parallel rods 6a and 7a respectively, one end of each rod being rotatably connected with a shaft mounted between the side walls 3 adjacent to the cutting plate 4. The other end of each rod 6a is connected with a front plate 9, and the other end of each rod 7a is connected with a rear plate 10 which is parallel to the front plate 9 and located partly under the same. The plates 9 and 10 are vertically movable and receive such reciprocal movement in the way described below.
On the frame 5 there are mounted four bearing brackets
II, in which a drive shaft 12 is rotatably mounted. The drive shaft 12 is driven by a hydraulic motor 13 mounted on the frame 5. The drive shaft 12 is provided with four eccentric discs 14 (Figures 3 and 4) surrounded by bearing housings 15 and 16. Through their parts located furthest away from the drive shaft 12, the eccentric discs 14 located in the bearing housings 15 are displaced 180° relative to the corresponding parts of two other eccentric discs located in the bearing housings 16.
The bearing housings 15 are connected with the front plate 9, and the bearing housings 16 are connected with the rear plate 10 in the way described below and shown especially in Figure 4.
The bearing housings 15 and 16 are provided with projections 15a and 16a respectively, each of which has a cone-shaped body 17 mounted thereto. A flexible member in the form of a spring steel member 18 with welded reinforcement plate 23 is provided with a hole 18a. A conical sleeve 19 fits to the body 17 and into the hole 18a. After these details have been mounted, a screw 20 is inserted in the sleeve 19, a washer 21 having previously been inserted between the sleeve and the screw head, and is screwed into the body 17. A screw 22 passed through a hole 18b in the spring steel member 18 is then screwed into the projection 15a, 16a.
By means of the ends facing away from the shaft 12, the arms 18 are connected with the plates 9 and 10 in the same way as the ends of the arms 18 facing towards the shaft 12 are connected with the projections 15a, 16a, as shown in Figure 4 wherefore an explanation will not be required. The details of the lower attachment device shown in Figure 4 are provided with the same reference numbers, though primed, as the corresponding details of the upper attachment device.
By means of the above described attachment devices 17- 22 and 17'-22' there is provided a play-free, easily dismount- able and mountable as well as reliable connection between the bearing housings 15, 16 and the grid portions 6 and 7 of the grid with the rods 6a and 7a.
Below is a brief description of the mode of operation of the bucket.
After the bucket has received the road material
excavated, the motor 13 is started, the plates 9 and 10 being moved vertically towards and from each other because of the two bearing housings 15 acted on by the eccentric discs 14 displacing the associated arms 18 upwardly while the two other bearing housings 16 acted on by the eccentric discs 14 displace the associated arms downwardly, and vice versa. Hereby, the two grid portions will receive contrary rotary movements about the shaft 8 such that large pieces of, for example, soil, will be disintegrated, and gravel and other small particles will enter the spaces between the rods and fall through these on to the road, whereas large pieces of, for example, turf will stay on the grid. The rotary movements of the rods 6 and 7 are very quick, and since the distance between the rods is greatest at the plates 9 and 10 (around 1- 3 cm) most of the road material will fall through the grid near these, especially since the bucket 1 is suitably inclined somewhat to the rear during separation.
The horizontal displacements between the bearing
housings 15, 16 and the plates 9, 10 caused by the eccentric action is absorbed by the flexible members 18, which are bent the most at their lower parts over the plates 23 '.
While there has been described and shown one embodiment of the device in accordance with the invention, it will be appreciated that also other embodiments are possible and that the invention is only limited by what is stated in the claims.

Claims

1 A separator bucket device with a grid for separation of excavated material, the grid comprising at least two
substantially parallel grid portions (6, 7) inserted in each other, one end of each grid portion being rotatably mounted in the bucket (at 8) and the opposite end of each grid portion being connected, by means of a movement transmission device (15-22), to at least one drive shaft (12) provided with eccentrics (14), such that on rotation of the drive shaft the grid portions will receive a rotary movement towards and from each other about the mounting in the bucket, characterized in that the movement transmission device (15-22) includes
elongated, flexible members (18), the ends of which are fixedly connected with the grid portions (6, 7) as well as with parts (15, 16) of the movement transmission device mounted on the eccentrics.
2 A device according to claim 1, characterized in that the flexible members (18) are spring steel members or the like which are flexible in one plane.
3 A device according to claim 1 or 2, characterized in that the fixed connection between one end or the other end of a flexible member (18) and a grid portion (6, 7) or a part (15, 16) of a movement transmission device (15-22) mounted on an eccentric (14) includes cone-shaped connection elements (17, 19).
4 A device according to claim 3, characterized in that a cone-shaped body (17) is connected with the grid portion (6, 7) and/or with the part (15, 16) of the movement transmission device mounted on the eccentric (14), in that a cone-shaped sleeve (19) is applied to said body and is inserted in and fits into a hole (18a, 18a') in the flexible member (18), and in that a screw (20) is passed through the sleeve, is screwed into the body and exerts a pressure on the sleeve.
EP19900908087 1989-04-21 1990-04-20 A device for a sorting shovel Expired - Lifetime EP0475965B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8901461 1989-04-21
SE8901461A SE462110B (en) 1989-04-21 1989-04-21 DEVICE FOR SORTING BUY

Publications (2)

Publication Number Publication Date
EP0475965A1 true EP0475965A1 (en) 1992-03-25
EP0475965B1 EP0475965B1 (en) 1993-10-06

Family

ID=20375756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900908087 Expired - Lifetime EP0475965B1 (en) 1989-04-21 1990-04-20 A device for a sorting shovel

Country Status (5)

Country Link
EP (1) EP0475965B1 (en)
AU (1) AU5533290A (en)
DE (1) DE69003812D1 (en)
SE (1) SE462110B (en)
WO (1) WO1990012929A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE464094B (en) * 1990-03-06 1991-03-04 Clifford Modig SHOPPING UNIT WITH SALING FUNCTION
DE9116810U1 (en) * 1991-02-18 1993-12-16 Wack, Helmut, 66440 Blieskastel Bucket for earthmoving equipment
NL194009C (en) * 1993-09-28 2001-04-03 Anthonie De Gooyer Shaker for cleaning bulk material.
SE9401348L (en) * 1994-04-20 1995-03-06 Gunborg Margit Linnea Hellgren Bucket with screening device
DE19715358C2 (en) * 1997-04-12 1999-11-25 Peter Dappen Backhoe
US6041943A (en) * 1998-08-05 2000-03-28 Samuel Lenko Adjustable grating pain rock sifter
GB9908699D0 (en) * 1999-04-17 1999-06-09 Leyland Rodney J Segregator bucket
MXPA02008911A (en) 2000-03-14 2003-03-10 Htb Llc Material separating apparatus and method for using same.
US6834447B1 (en) * 2002-06-06 2004-12-28 Albert Ben Currey Excavator sizing bucket
NL1038468C2 (en) 2010-12-21 2012-06-25 Haner Infra Innovatie B V METHOD AND COMPOSITION FOR REBESTRATED.
FI123997B (en) * 2012-10-01 2014-01-31 Pohmako Ky Scoop and its use
FI124431B (en) * 2013-02-01 2014-08-29 Pohmako Ky Shaker, scoop and shaking procedure
FI131369B1 (en) * 2022-05-04 2025-03-11 Allu Innovation And Res Center Oy Vibrating screen for screening aggregates and/or soils

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003265A (en) * 1959-12-30 1961-10-10 Lutjens Herman Bucket device
US3765490A (en) * 1972-06-29 1973-10-16 G Logue Combined loader bucket and fines separator
US4157956A (en) * 1978-04-19 1979-06-12 Robinson Leo E Screening bucket
NL174281B (en) * 1980-08-29 1983-12-16 Hendrik Pleyzier DEVICE FOR RECORDING A LAYER OF ELEMENTS WITH A CYLINDRICAL RECORDING DEVICE, OF WHICH A VALVE-PARTED PART RECEIVES THE ELEMENTS.
SE454096B (en) * 1984-10-18 1988-03-28 Prodec Inter Ab ROOTABLE SEARCH BASKET WITH CLUTCH ORGANIZATION TO TOOL
SE454711B (en) * 1987-03-30 1988-05-24 Prodec Inter Ab ROOTABLE SEARCH BASKET WITH CLUTCH ORGANIZATION TO TOOL

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9012929A1 *

Also Published As

Publication number Publication date
DE69003812D1 (en) 1993-11-11
SE462110B (en) 1990-05-07
EP0475965B1 (en) 1993-10-06
WO1990012929A1 (en) 1990-11-01
SE8901461D0 (en) 1989-04-21
AU5533290A (en) 1990-11-16

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