SK278185B6 - Activated shovel of vertical loader - Google Patents

Abstract

On jib of vertical loader is articulately jointed the shovel. The cutting edge of bottom of shovel is activated by multiple impacting tools of impacting mechanism arrange one next to other. The essence of new treating is in fact, that the middle impacting tool (21) is from impacting tools (21,22,23,24,25) put in front before neighboring impacting tools (22,23). The other impacted tools (22,23,24) are coordinated by sides of middle impacting tool (21) and in direction out increase so, that the backswept cutting edge of bottom is creating the neighboring impacting tools (21,22,23,24,25) have mutually very small lateral distance (39).

Description

Technical field

The invention relates to an activated bucket of a vertical loader articulated on a boom, wherein the cutting edge of the bucket bottom is activated by a plurality of side-by-side striking tools of the striking mechanisms.

BACKGROUND OF THE INVENTION

In a known shovel of this kind (German Published Patent No. 13,120,202), the front ends of all striking tools lie in a common plane. Coarse crushing or crushing of parts disconnected into large slabs or rock fragments, without sufficient visual control from the operator's site, causes difficulties when only one external percussion tool is directed to the rock for a relatively oblique position. This first striking tool is then unduly loaded and does not provide full striking power to shank its shank. For the operator, the inconvenient and often difficult to engage more than the first striking tool. The crushing operation is then uneconomical.

SUMMARY OF THE INVENTION

This object is achieved by a bucket of a vertical loader articulated on a boom, wherein the cutting edge of the bucket bottom is activated by a plurality of juxtaposed striking tools of the striking mechanism according to the invention, characterized in that the middle of the striking tools is pushed forward through adjacent striking tools. According to a further modification, starting from the center impact tool, all other impact tools are arranged rearwardly offset against the center impact tool, increasing outwardly, so that a generally arcuate bottom cutting edge results. Finally, according to a preferred embodiment, the adjacent striking tools have a very slight lateral distance therebetween, so that when wear occurs on the shank of the striking tools, rotation of the striking tools about their longitudinal axis is prevented by mutual lateral support against rotation.

Said treatment achieves that, as a rule, the middle ground tool comes first into contact with the rock to be crushed and can therefore develop its full power. The middle striking tool penetrates relatively quickly into the rock due to the high specific striking power. As a result, adjacent striking tools, at least on one side of the middle striking tool, also come into contact relatively quickly with the rock and participate in the crushing. In the initial relative oblique position of the bucket and the rock to be crushed, several striking tools usually come into contact with the rock and can develop their full power.

The device according to a further modification increases these advantages, since with the arrow-like arrangement of the striking tools, there is a particularly high probability that at the initial relative inclination position of the bucket and rock several striking tools will get into effective engagement.

One of the preferred embodiments further promotes the crushing effect of the bucket. If wear occurs in the region of the shank of the impact tools, this increasingly results in the rotation of the impact tools about their longitudinal axis. However, this is a very undesirable condition that leads to premature releasing of the vertical loader and repair. According to this preferred embodiment, this immediate mutual support of the striking tools is counteracted so that the striking tools cannot rotate at all or only to a slight extent about their longitudinal axis.

BRIEF DESCRIPTION OF THE DRAWINGS

An exemplary embodiment of the invention is illustrated schematically in the accompanying drawings, from which further features and advantages of the invention can be derived; FIG. 1 shows a plan view of a bucket of a vertical loader, and FIG. 2 is a vertical section along II - II in FIG. First

DETAILED DESCRIPTION OF THE INVENTION

In FIG. 1, the bucket 1 of the vertical loader is pivotable about an axis 2 articulated at only a partially drawn boom face 3 of the vertical loader.

The bucket 1 has a housing 4 with side walls 5 and 6, a rear wall 7 and a bottom 8 of the bucket. Each of the side walls 5, 6 has within it a guide bar 9 and 10 for the sliding guide element 11 and 12 of the hydraulically actuable emptying slide 13 therein.

The bucket bottom 8 together with the front cross member 14, the rear cross member 15 (FIG. 2) and the bottom plate 16 (FIG. 2) form a housing 17 of the impact tool. The rear bar 15 is screwed onto the bottom 8 of the bucket. The bottom plate 16 is also detachably screwed onto another part of the housing 17 of the ground apparatus.

The strike box 17 comprises five strike apparatus 18 arranged side by side, all of which are formed in the same manner. Each striking device 18 has, according to FIG. 2, a hydraulic impact hammer 19 with a working cylinder 20, as well as impact tools 21 to 25 formed as chisels. Each striking tool 21-25 is guided by a shank 26 with longitudinal displacement in the guide sleeve 27 of bronze. The laterally milled recess 28 of the shank 26 interacts with a heavy clamping pin inserted into the bore of the front cross member 14 of FIG. 1 and prevents, in a known manner, the shank 26 with the smoking tool 21 to 25 about its longitudinal axis 29.

The hammer housing tube 30 is shown in FIG. 2 is supported on the strike housing 17 via the rear rung 15. In the rear rung there is a transverse bore 31 which is supplied with hydraulic fluid by the supply line 32 and divides the hydraulic fluid into five hydraulic impact hammers 19. Similarly, the transverse rung 15 is transverse a bore 33 connecting all five hydraulic hammers 19 to a non-illustrated return line.

In FIG. 2, to the left of the housing tube 30, a biased spring group 34 formed of annular disk springs surrounding the working piston 20 is shown in front. 2, the left disk spring abuts against the rear flange 35 of the retaining sleeve 36, which includes a guide sleeve 27. The retaining sleeve 36 extends beyond the front flange 37 of the front end of the front cross member 14 and is firmly screwed to this front end by screws (FIG. 1).

According to FIG. 1, the central striking tool 21 protrudes forward through adjacent striking tools 22, 23. These striking tools 22, 23 protrude on their side towards the front through striking tools 24 and 25, which are positioned on the side.

SK 278185 Β6 solder outwards. This results in a generally arrow-like arrangement for the striking tools 21 to 25.

All impact tools 21 to 25 have a very small lateral distance 39 from each other. Should wear occur in the extent of the shank guide 26 and the corresponding striking tool 21 to 25 would tend to rotate about its longitudinal axis 29, the lateral distance 39 becomes zero so that the striking tool having a tendency to rotate rests on the adjacent the percussion tool and in this way prevents it from rotating about the longitudinal axis 29

Claims (2)

PATENT CLAIMS Activated bucket of a vertical loader, articulated 15 on a boom, whose cutting edge of the bottom consists of side-by-side striking tools mounted in striking mechanisms, characterized in that the middle striking tool (21) is forward ahead of the adjacent striking tools ( 22, 23), and 20 these are protruding in front of the extremity of the tool (24, 25) and form an arrow-shaped cutting edge of the bottom (8). Activated bucket according to claim 1, characterized in that adjacent striking tools (21, 22, 23, 24, 25) have a lateral play (39) between them. 25