DE3004974A1 - GRAVE VESSEL - Google Patents

Abstract

1. An excavator bucket (1), in particular a ditch-clearing shovel, for an excavator or the like machinery, attachment fixture (2) which incorporates a mounting (4) for connection to the boom of an item of construction machinery and a tilting device (5) which is located between the mounting (4) and the top (3) of the excavator bucket (1), the tilting device essentially comprising a pivot bearing (17) arranged with its pivot axis (16) in the longitudinal direction of the boom and a hydraulic cylinder arrangement connected between the top (3) of the excavator bucket (1) and the mounting (4) in a manner permitting articulation, the hydraulic cylinder arrangement being connected beneath the pivot bearing (17) by means of its end which is located close to the attachement fixture, characterized in that the top (3) of the excavator bucket (1) is designed as a hollow box girder (6) and the hydraulic cylinder arrangement comprises two hydraulic cylinders (23 and 24) which are arranged inside this hollow box girder (6), one on either side of the attachment fixture (2), the ends (27 and 28 respectively) closer to the attachment fixture being located between the pivot bearing (17) and the top (3) of the excavate bucket or, as the case may be, a lower flange (8) of the hollow box girder (6), and in the vertial plane of the boom axis (13) passing through the pivot bearing (17).

Description

PATENTANWÄLTE DIPU.-IN3. A. WEDDE DIFM -.- ING. K. EMPL Deutsche Bank 06/22 001 BLZ 7OO7OO1O 8OOO MUNICH 8O Bayer. Hypobank 172ΟΟ2ΘΟΟΟ BLZ 7OO 2OO O7 Schumannetr. a - Tel. (OSO) 47 15 47 PoetecheokMchn. 473O2-aO3BLZ 70O1OO8O Teleoremme: Patentwedde - Munich

February 11, 1980 File: P 23 818

Company

bsg Handels-GmbH for

Construction machinery wear part 1 e

Kesselbodenstrasse 1
8051 Allershausen

Burial vessel.

The invention relates to a grave vessel, in particular a trench clearing spoon, for excavators and similar construction machines, with a fastening device arranged centrally on its upper side, which has a Bracket for connection to the boom of a construction machine and one arranged between the bracket and the top of the grave vessel Contains tilting device, which essentially consists of a rotating axis arranged with its axis of rotation in the longitudinal direction of the boom.

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bearing and two, each articulated between the top of the grave vessel and the tilting device and connected in the longitudinal direction seen of the boom, there is a hydraulic cylinder arranged to the side of the fastening device. 5

In such known grave vessels, the pivot bearing is the tilting device arranged immediately adjacent to the top of the grave vessel and above it and the hydraulic cylinders on the side, which cause the tilting movement of the grave vessel around the axis of rotation are with their ends on the sides of the fastening device articulated to the bracket above the pivot bearing. The ends of the hydraulic cylinders on the digging vessel side are dependent the height of the tilting device and bracket and depending on the length of the hydraulic cylinder used either near the pivot bearing or adjacent to the side walls on which the Grabqefäß delimits in its lateral extent The top of the grave vessel is also attached in an articulated manner.

The disadvantage of these known designs is that the hydraulic cylinder, In particular, the piston rods, which are sensitive to external mechanical influences, are unprotected against damage through lumps of earth and boulders during work, as the hydraulic cylinders arranged in this way are directly in the work area reach the grave shovel.

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Frequent replacement of the damaged hydraulic cylinder results in longer downtimes of the construction machine and is therefore extremely cost-disadvantageous.

The object of the invention is, in a grave vessel, in particular a ditch cleaning bucket, for excavators and similar construction machines Fastening device with bracket and tilting device and the hydraulic cylinders causing the tilting movement to be designed in such a way that those particularly sensitive to mechanical environmental influences Hydraulic cylinders with their piston rods and the associated Hydraulic hoses are almost completely protected or are integrated into the grave vessel, and in particular the disadvantages listed above are avoided.

This object is achieved in that, in a grave vessel of the type mentioned at the beginning, the hydraulic cylinders with their fastening device-side Ends below the pivot bearing between this and the top of the digging vessel on the tilting device are connected.

This inventive design ensures that the hydraulic cylinders, but in particular their piston rods in the immediate Close to the top of the grave vessel and arranged in the immediate area of the fastening device and covered are.

-4-

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_ τ 300Λ.974

In an advantageous further development, the tilting device is essentially formed from two circular flanges, arranged perpendicular to the plane of the extension axis and spaced one behind the other, designed as plate disks and attached to the bracket, in the center of which the rotary axis of the pivot bearing is arranged and which in turn are divided into two , is mounted parallel to the plate washers, fastened tabs on the top of the Grabqefäßes.
The plate-shaped design of the tilting device results in a greater distance between the top of the grave vessel and the pivot bearing of the tilting device than is the case with the known devices of the case.

Advantageously, the two hydraulic cylinders are articulated with their ends on the side of the grave vessel adjacent to the side walls of the vessel on the upper side and their ends on the tilting device side are also articulated on one of the plate washers at a radial distance from the axis of rotation of the tilting device.
This design of the Kippvorrichtunq enables in particular the arrangement of the hydraulic cylinders almost parallel to the top.

The hydraulic cylinders with their tilting device sides are advantageous Ends each attached to one of the two plate washers.

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This results in a more even distribution of the Hydraulic cylinders to be transferred to the tilting device or bracket Powers.

In a further development according to the invention, the top of the grave vessel is designed as a box girder and are the two hydraulic cylinders arranged within this hollow girder, the upper chord of the hollow box girder having a corresponding one in the area of the plate washers Has recess through which the plate washers into the cavity of the box girder.

The formation of the top of the grave vessel increased as a hollow box beam the stability of the grave vessel and is at the same time suitable due to the inventive arrangement of the hydraulic cylinders as the Hydraulic cylinder protective cover.

Finally, the recess in the top chord of the box girder on two, the plate washers stand in the box girder Allowing slots to be reduced.

This design of the top of the grave vessel as a hollow box girder grant! There is almost complete protection for the particularly sensitive hydraulic cylinders with their piston rods and the hydraulic lines located in this area. Even at Extreme use of the grave vessel can damage the sensitive parts

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-6-BATH ORIGINAL

cannot be damaged as they are completely covered. Through this is also a great ease of maintenance of the implement achieved.

To carry out occasional maintenance work, the the rear of the box girder facing the construction machine openings are provided which can be covered by appropriately designed covers.

An exemplary embodiment that does not limit the invention is shown in the figures. Show it

Fig. 1 is a front view of the grave vessel with fastening device without the front strap of the. Box girder and with drawn tilt position from 45 °,

Fig. 2 is a section along line II-II in Fiq.l,

Fig; 3 is a plan view of the grave vessel with partial Section of the tilting device according to line III-III

in Fig. 3,

Fig. 4 rear view of the grave vessel and

Fig. 5 side view of the grave vessel without representation

the bracket.

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The figures show a grave vessel 1 in the special embodiment of a trench clearing spoon with a fastening device 2 shown, which can be connected to the boom of a construction machine, in particular an excavator.

The fastening device 2 is arranged centrally on the top 3 of the grave vessel 1 and contains one for fastening to the excavator boom provided holder 4 and one between them Bracket 4 and the top 3 of the grave vessel 1 arranged tilting device 5.

The top 3 of the grave vessel 1 is as a hollow box girder 6 with Upper chord 7, lower chord 8 and front web 9 and rear web 10 are formed. This formation of the top of the grave vessel, completed from the side walls 11 and 12, in addition to increasing the static moment of resistance, in particular the absorption is more essential Parts of the tilting device 5.

The tilting device 5 consists of two, fixedly arranged below the bracket 4, perpendicular to the plane of the boom axis 13 and in Circular flanges arranged at a distance from one another and designed as cup washers 14 and 15, respectively.

In the center of the circle of the plate washers 14 and 15 is the axis of rotation 16 of a pivot bearing 17 arranged, which in turn in two, arranged parallel to the plate washers 14 and 15, on the

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^M 3Q0A974

Top belt 7 of the box girder 6 of the grave vessel l attached Lugs 18 and 19 is mounted.

The tabs 18 and 19 can also go up over the top belt 7 be extended parts of the front and rear webs 9 and 10, respectively. ·

The upper chord 7 of the box girder 6 has in the area of Cup washers 14 and 15 have a recess 20 or a separate slot 21 or 22 for each cup washer 14 or 15, so that the plate washers enter the interior of the Hollow box girder 6 can protrude.

Two hydraulic cylinders 23 are located inside the hollow box girder 6 or 24 installed in an approximately horizontal position when the grave vessel 1 is not swiveled out. The respective burial vessel side Ends 25 and 26 of the hydraulic cylinders 23 and 24, respectively are articulated near the side walls 11 and 12 of the grave vessel 1 on the inside of the lower chord 8, the tilting device side Ends 27 and 28 of the two hydraulic cylinders are on the other hand, at a radial distance from the axis of rotation 16 of the pivot bearing on one of the two cup washers 14 and 15, respectively hinged.

Depending on which of the two hydraulic cylinders is one or. extended is, the grave vessel 1 is pivoted about the axis of rotation 16 of the fastening device 2.

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300A974

The rear web 10 of the box girder 6 has openings, which are closed with corresponding covers 29 (see Fig. 4) and, if necessary, the maintenance of the hydraulic cylinders 23 or and corresponding hydraulic lines 30 allow.

These hydraulic lines 30 end in connections 31, which are directly are arranged in the rotary area of the fastening device and can accommodate the construction machine-side connecting parts.

H / Zi.l

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Claims (7)

300A974 February 11, 1980 File: P 23 818 PATENT CLAIMS. ; \ .y Grave vessel, in particular a ditch cleaning bucket, for excavators and similar construction machines, with a fastening device arranged centrally on its upper side, which a shark tion for connection to the boom of a construction machine and one, between the bracket and the top of the Grabqefäßes arranged tilting device contains which essentially from one, with its axis of rotation arranged in the longitudinal direction of the boom, and two, between the top of the Grave vessel and the holder. each articulated and, seen in the longitudinal direction of the boom, hydraulic cylinders arranged to the side of the fastening device consists, characterized in that the hydraulic cylinders (23 or 24) with their fastening device-side ends (27 or 28) below the pivot bearing (17) are connected between this and the top (3) of the grave vessel (1) on the tilting device (5). 2.) Grave vessel according to claim 1, characterized in that that the tilting device (5) consists essentially of two, perpendicular to the plane of the boom axis (13) and in the Spaced one behind the other as plate washers (14 or 15) formed circular flanges attached to the holder (4), in the center of which 130034/0139 point the axis of rotation (16) of the pivot bearing (17) is arranged and which, in turn, into two, the table discs (14 or ¹⁵⁾ arranged in parallel, fixed on the upper side ⁽³⁾ of the Grabgefä'ßes (1) lugs (18 or 19) is stored. 3.) grave vessel according to claim 2, characterized in that that the two hydraulic cylinders (23 and 24) with their burial vessel-side ends (25 and 26) adjacent to the side walls (H or 12) of the grave vessel on its Upper side (3} are connected in an articulated manner and with their ends (27 and 28) on the tilting device side are also articulated are connected to one of the plate washers at a radial distance from the axis of rotation (16) of the tilting device. 4.) grave vessel according to claim 3, characterized gekennzei chnet that the hydraulic cylinders (23 or 24) with their ends (27 and 28) on the tilting device side, respectively attached to one of the two plate washers (14 or 15) are. 5.) grave vessel according to claim 1, characterized e i chnet that the top (3) of the grave vessel is designed as a box girder (6) and the two Hydraulic cylinders (23 or 24) within this hollow box 130034/0139 carrier (6) are arranged, wherein the upper chord (7) of the hollow box girder (6) in the Bereicti of the plate washers has a corresponding recess (20) through which the plate washers protrude into the cavity of the box girder. 6.) grave vessel according to claim 5, characterized marked eg Eich et η, that the recess (20) in the Oberqurt (7) standing of the hollow box girder (6) to two, the Belleville washers in the hollow box beam transmitting Slots (21 or 22) is reduced. 7.) Grave vessel according to claim 5, characterized in that in the de located towards the construction machine · i c h η e t lower web (11) of the box girder (6) openings are provided, which can be covered by appropriately designed cover (29). H / Zi.l 130034/0139