Bucket for a mechanical excavator

Details Bucket for a mechanical excavator Bucket for a mechanical excavator

1997-12-01

1999-07-06

Shackelford, Heather

Excavating

Scoop or excavating and transporting container

Supported on vehicle between longitudinally spaced ground...

37444, 37403, 37241, E02F 365

Patent

active

059183900

DESCRIPTION:

BRIEF SUMMARY
The invention relates to a deep bucket for an exchangeable mounting at the jib head of an excavator.
In the use of bucket excavators, the necessity often results of having to use deep buckets of different working widths. This means a loss of working time, which is needed for the exchange, as well as difficulties with respect to the number of the deep buckets which must be held in reserve for this purpose. The additional deep buckets must also be transported forward and stored. They must also be treated with appreciable care in order to prevent contamination of the receptacle and the hydraulic ducts. Additional deep buckets are also present only in certain widths so that the necessity often exists of having to decide on a certain bucket, which is not, however, optimum in its width. These are appreciable disadvantages of the exchange system.
A deep bucket for the exchangeable mounting at the jib head of a bucket excavator is known from European Patent 0 435 796 (Suau), wherein the deep bucket consists of at least two shells which are movable relative to each other and constrainedly guided towards each other, and the width of the deep bucket is steplessly adjustable between a minimum value and a maximum value. The constrained guidance takes place in the case of this deep bucket by mutually complementary profiles, namely a dovetail profile and a T-profile. Such constrained guides, which are based on interengaging profile sections, suffer from the severe disadvantage that the constrained guiding force becomes very much smaller with increasing adjusted spacing of the shells and the risk of mutual tipping of the shells increases. However, if a minimum amount of constrained guiding force cannot be fallen below, then the maximum possible widening of the deep bucket or the adjustability of the side parts becomes too small in order to be satisfactory for practical use, because only a deep bucket which covers a great width range brings the desired advantages in practical use.
The invention therefore has the object of providing a steplessly adjustable deep bucket, in which the force of the constrained guidance relative to each other decreases by only a small degree and the parallel guidance of the bucket parts relative to each other is ensured.
An embodiment of the invention is reproduced in the drawings. There:
FIG. 1 shows a schematic side elevation of the deep bucket of a deep bucket excavator,
FIG. 2A shows a view of the deep bucket from the direction of arrow 11 of FIG. 1 in the contracted state,
FIG. 2B shows as FIG. 2A, but in the extended state,
FIG. 3 shows a view of the deep bucket along the section line III--Ill of FIG. 2A,
FIG. 4 shows a view of the deep bucket from the direction of the section line IV--IV of FIG. 3,
FIG. 5A shows a view of the deep bucket from the direction of arrow V of FIG. 3 with a broken-away wall part and contracted scissors,
FIG. 5B shows as FIG. 5A, but with extended scissors,
FIG. 6A shows a view of the deep bucket from the direction of arrow VI of FIG. 3 with a broken-away wall part and contracted scissors,
FIG. 6B shows as FIG. 6A, but with extended scissors,
FIG. 7 shows a schematic section through the deep bucket as FIG. 3 with a second scissors system,
FIG. 7A shows the second scissors system in the contracted state,
FIG. 7B shows the second scissors system in the extended state,
FIG. 8A shows the first scissors system with changed mounting of the pressure motor in the contracted state,
FIG. 8B shows the scissors system according to FIG. 8A in the extended state, and
FIG. 9 shows the pressure system for the pressure motors according to the FIGS. 7 to 8B.
The deep bucket 1 for exchangeable mounting at the jib head of a not-illustrated bucket excavator is steplessly adjustable in its width between a minimum value b1 (FIG. 2A) and a maximum value b2 (FIG. 2B). The deep bucket 1 consists of a stationary central middle shell 2 and two side shells 31 and 32 which are in mirror symmetry to each other and can be moved out relative to the middle shell 2. The outward movement of the sid

REFERENCES:
patent: 3034237 (1962-05-01), Wolfe et al.
patent: 3805422 (1974-04-01), Stepe
patent: 4208814 (1980-06-01), Stone
patent: 4691455 (1987-09-01), Newman

Affiliated with

Also associated with

Rating

Bucket for a mechanical excavator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bucket for a mechanical excavator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bucket for a mechanical excavator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-891239