Screening, crushing or mixing bucket

• US 8,122,620 B2
• Filed: 01/28/2010
• Issued: 02/28/2012
• Est. Priority Date: 02/04/2009
• Status: Active Grant

• Current Assignee: ALLU Finland Oy (Allu Group Oy)
• Original Assignee: ALLU Finland Oy (Allu Group Oy)
• Inventors: Männikkö, Ari, Eloranta, Joonas, Lappalainen, Anatoli
• Primary Examiner(s): Pezzuto, Robert
• Assistant Examiner(s): McGowan, Jamie L
• Application Number:
  US12/695,496
• Publication Number:
  US 20100192424A1
• Time in Patent Office: 761 Days
• Field of Search: 372/50, 373/41, 373/79, 374/44, 374/45, 379/01, 379/03, 374/03, 241/101.77, 241/157, 241/236, 746/09
• US Class Current: 37/444
• CPC Class Codes: B01F 27/731 with two or more parallel shafts provided with perpendicularly mounted discs, e.g. lens shaped, one against the other on each shaft and in circumferential contact with the discs on the other shafts, e.g. for cleaning
• CPC Class Codes: B01F 33/5021 the vehicle being self-propelled, e.g. truck mounted, provided with a motor, driven by tracks B01F33/5022 - B01F33/5027 take precedence
• CPC Class Codes: B01F 33/83612 by crushing or breaking
• CPC Class Codes: B07B 1/15 using corrugated, grooved or ribbed rollers
• CPC Class Codes: E02F 3/40 Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets devices to connect tools to arms or booms E02F3/3604; teeth therefor E02F9/28
• CPC Class Codes: E02F 3/407 with ejecting or other unloading device
• CPC Class Codes: E02F 7/06 Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators for back-filling E02F5/226 takes precedence; separating equipment in general B03; delivery chutes in general B65G
• CPC Class Codes: Y10T 74/2191 for rotary member

Abstract

A screening, crushing or mixing bucket is formed into a bucket of an excavating machine or bucket loader. The bucket comprises a bottom plate, side walls, and at the back of the bucket working drums rotatable about their shafts, which screen, crush or mix the material in the bucket as they rotate and at the same time deliver screened, crushed or mixed material out of the bucket, between or through the working drums. In the bucket are casings for the power transmission and bearings of the working drums. The casings are limited by frame plates to which the bearing housings of the drums are attachable. On the frame plate and/or on the inner side of the inner wall is fixed a mudguard, which extends between the shafts of the working drums, next to the lead-throughs of the shafts, and the mudguard comprises cut-outs for receiving the shafts of the working drums.

Claims

1. A screening, crushing or mixing bucket, which is formed into the bucket of an excavating machine or bucket loader, comprising:

a bottom plate;

side walls;

working drums at a rear part of the bucket rotatable about their shafts, which screen, crush or mix material in the bucket as they rotate and at the same time deliver screened, crushed or mixed material out of the bucket, between or through the working drums; and

casings for a power transmission and bearings of the working drums, the casings being limited by frame plates to which bearing housings of the working drums are attachable, wherein;

a mudguard is fixed on an inner side of the frame plate or an inner side of the side wall, which extends between the shafts of the working drums, next to lead-throughs of the shafts,

the mudguard comprises cut-outs for receiving the shafts of the working drums,

the working drums comprise end flanges which are located on an opposite side of the frame plate with respect to the bearing housing, immediately adjacent to the frame plate,

the mudguard extends next to the end flanges so that at least a part of each end flange remains between the frame plate and the mudguard to guide the material being processed past the slot between the end flange and the frame plate, and

the end flanges rotate with each working drum attached to the shaft of the working drum.

2. The bucket as claimed in claim 1, wherein the mudguard comprises a plate transverse to an axial direction of the working drums, wherein the plate extends partly over the end flanges.