GB2156776A

GB2156776A - Loading vehicle

Info

Publication number: GB2156776A
Application number: GB08508720A
Authority: GB
Inventors: Heinz Weber
Original assignee: Fried Krupp AG
Current assignee: Fried Krupp AG
Priority date: 1984-04-05
Filing date: 1985-04-03
Publication date: 1985-10-16
Also published as: GB8508720D0; DE3412829A1; FR2562524A1; JPS60226921A

Abstract

A loading vehicle (1) has a belt or chain conveyor (5) pivotable about an axis (2) and receiving material from a shovel (9) articulated about a horizontal axis (8) lying in the region of the reversing roller (7) at the end of the conveyor (5). The shovel is able to articulate independently of the raising and lowering movements of the beam (4). In the conveying direction there is arranged a further conveyor (12) the reception end of which lies below the pivot axis of the beam (4) and the discharge and of which empties into a chute (14) feeding a conveyor belt (15). <IMAGE>

Description

SPECIFICATION Loading implement for material for conveying The invention relates to a loading implement, provided with a vehicle mechanism, in accordance with the opening statement of Claim 1.

Such a loading implement, previously known from U.S. P.S. No. 1,739,624, is of a configuration in which a conveyor belt, which is a constituent at each of the two ends of a raisable and lowerable beam, extends in the longitudinal direction of the vehicle mechanism. The horizontal spindle to which the beams are articulated is thus at the same time their pivot spindle. This embodiment involves the disadvantage that limits are set to the upward pivoting of the beam, since otherwise the conveyor belt lifts away from the reversing roller. A hydraulic cylinder articulated to the end of the vehicle mechanism and acting upon a lever iinkage articulated to the beam in extending simultaneously pivots the beam and the shovel articulated to the free end of the later. This has the disadvantage that beam and shovel can be pivoted only together in a quite specific manner.Moreover a complicated and expensive lever linkage is necessary which must be articulated at the forward end of the shovel, that is the end facing the material to be removed, so that the joint concerned is exposed to the material to be conveyed.

The previously known loading implement is furthermore intended solely for underground working.

The invention is based upon the problem of designing a loading implement of the initially stated kind so that any desired tilting movement of the beam and of the shovel articulated to its forward end can be executed. The solution to the problem consists in the features of the characterising part of Claim 1.

The invention brings the advantage that any desired kind of material for conveying, from ioose buik material to solid rock, can be conveyed and loaded and even relatively great heights, measured from the ground surface, can be reached with the shovel.

Further developments of the invention are the objects of the Sub-Claims. The form of embodiment according to Claim 5 here results in an especially simple and expedient configuration of the object of the invention. The loading implements having the features of Claims 6 and 7 are especially advantageous for harder material for conveying and greater removal heights.

Several examples of embodiment of the invention are represented diagrammatically in the drawing and explained in greater detail below.

Figures 1 and 2 show a loading implement in elevation, with the beam in two different positions, Figure 3 shows another form of embodiment in elevation, Figure 4 shows a further form of embodiment with a "hinged-arm" beam and Figures 5 to 7 show a further embodiment of a loading implement with a hinged-arm beam, in three different working positions.

In the loading implement according to Figs.

1 and 2 a track-laying vehicle 1 has on the two sides two upwardly pointing pedestals 3 each provided with a pivot bearing 2. A beam 4 of channel-shaped cross-section carrying a conveyor 5 formed as plate conveyor is articulated on the pivot bearings 2 between the pedestals 3. The rear reversing roller 6 of the conveyor 5 ends in the vicinity of the axis of the pivot bearings 2, while the axis of the forward reversing roller 7 coincides with the pivot spindle 8 of a shovel 9, the slightly troughed bottom 10 of which starts from the pivot spindle 8 and the upwardly extending side walls 11 of which can externally overlap the side walls of the beam 4, as may be seen from Fig. 2.

Fig. 1 shows the loading implement with shovel 9 lowered to the ground surface, as it will be driven to a heap (not shown) of material to be conveyed. After the shovel 11 is filled with material it is pivoted upwards about its pivot spindle 8 so that the material passes on to the conveyor 5 and thence is transferred on to a further conveyor 1 2 having an ascending course in a further rigid beam 1 3 arranged on the vehicle chassis 1. The beam 1 3 is provided with a breaker 37 for reducing the size of the conveyed material.At the end of the beam 1 3 there is arranged a transfer chute 14 which transfers the conveyed material on to a further-conveying belt 1 5 which is three-dimensionally movably arranged on the beam 1 3. In order to achieve greater conveying heights or a better transfer of the material from the shovel 9 on to the conveyor 5, the beam 4 can be raised accordingly, which is effected by a hydraulic cylinder 1 6 articulated for the one part to the beam 4 and for the other to the track-laying vehicle 1.

At the same time to the point of articulation of the hydraulic cylinder 1 6 on the beam 4 there is articulated a further hydraulic cylinder 1 7 which acts upon a two-armed lever 1 8 likewise mounted on the beam 4, which lever 18 is connected through a rod 1 9 with a side wall of the shovel 11 at an articulation point 20 and pivots the shovel. The rod 1 9 and the two-armed lever 1 8 are arranged externally on both sides of the beam 4, that is they are present in duplicate.

In the example of embodiment according to Fig. 3 the track-laying vehicle 1 likewise comprises two lateral upwardly pointing pedestals 3 on the upper end of which an arm 21 is articulated as beam, the outer end of which, as in the example of embodiment according to Figs. 1 and 2, comprises the pivot spindle 8 for a shovel 22 which has an angled floor on its under side. A conveyor 5, the forward reversing roller of which likewise coincides with the pivot spindle 8, is arranged in a trough-like frame 23 which is supported longitudinally displaceably in the region of the pedestals 3. The track-laying vehicle 1 again comprises a convey-away belt 1 5 and a beam 1 3 carrying a discharge chute 14 and vertically movable by a hydraulic cylinder 24.

From the chute 14 the conveyed material is transferred to a tipper truck 25. A hydraulic cylinder 26 articulated to the vehicle chassis 1 and to the arm 21 again serves for the raising and lowering of the corresponding forward beam. The pivoting and tipping movements of the shovel 22 about the pivot spindle 8 are effected by a hydraulic cylinder 27 which is articulated with one end to the arm 21 and acts with its other end on a single-armed lever 28 which is secured to the floor of the shovel 22 in the region of the pivot spindle 8. Arm 21, hydraulic cylinders 24 and 26 and lever 28 are each arranged on both sides of the trough 23, that is they are present in duplicate.

In the example of embodiment as represented in Fig. 4 the track-laying vehicle chassis 1 has a turntable 29, so that the beam and the other upper structures are pivotable about a vertical axis in relation to the vehicle.

In this example of embodiment the beam is formed by two arms 30 and 31 which are connected with one another through a joint 32. The arm 30 is articulated to the pedestal 3 of the pivotable vehicle superstructure 33 and is displaceable in height by a hydraulic cylinder 34 likewise articulated to the superstructure 33. The joint 32 is the pivot point of the arm 31, forming a two-armed lever, at the end of which a shovel 9' has its pivot spindle 8. As tipping drive for the shovel 9' a hydraulic cylinder 35 is provided which is articulated to one side wall of the shovel 9' for the one part and to the arm 31 for the other part. On the other end of the arm 31 there acts a further hydraulic cylinder 36 which is mounted with its other end on the arm 30 and effects an angle displacement between the arms 30 and 31.

The further loading implement according to Figs. 5 to 7 is constructed similarly to the example of embodiment according to Fig. 4.

Both forms of embodiment are especially suitable for ripping loose solid rock. In the example of embodiment according to Figs. 5 to 7 the shovel end of the arm 31' is articulated to one side wall of the shovel 9', while the hydraulic cylinder 35' which effects the tilting movements of the shovel and is articulated likewise to the arm 31' for the one part, is mounted with its other end in the pivot spindle 8 of the shovel 9'. The remainder of the construction of the beam is the same as in the example of embodiment according to Fig.

4. The conveyor 5', which is moved by the beam arms 30 and 31', is mounted in the region of the pivot spindle 8 and rests with its other end longitudinally displaceably on the vehicle superstructure 33. In Figs. 5 to 7 the manner of operation of this loading implement is shown in three different positions. Fig. 5 shows the beam of the implement in the retracted position with the shovel 9' lowered, in Fig. 6 the beam is extended out further, the shovel 9' remaining in the region of the ground surface, and in Fig. 7 the shovel 9' is pivoted upwards and the beam retracted again, that is to say it has again departed from the heap of material for conveying.

Claims

1. Loading implement provided with a vehicle mechanism, which is provided with a belt conveyor, chain conveyor or the like for taking up and passing on material for conveying and comprises a beam pivotably articulated on the vehicle mechanism about a horizontal axis for raising and lowering, on the free end of which beam a shovel is articulated pivotably about a horizontal axis lying in the region of the reversing roller at the end of the conveyor, which shovel comprises a floor defined by two side walls and is connected at one point at least, with spacing from the horizontal axis, with a tilting drive, characterised in that the shovel (9, 9', 22) is tiltable independently of the raising and lowering movements of the beam and behind the beam, in the conveying direction, there is arranged a further conveyor (12) the reception end of which lies below the vehicle end of the beam conveyor.

2. Loading implement according to Claim 1, characterised in that the drive for the raising and lowering movements of the beam (4, 21, 30) is articulated to the beam directly, without interposition of a lever or the like.

3. Loading implement according to Claim 1 or 2, characterised in that the tilting drive of the shovel (9, 9', 22) is arranged on the beam (4,21).

4. Loading implement according to Claim 3, characterised in that the tilting drive acts on the under side of the shovel (22) in its pivoting region.

5. Loading implement according to Claim 3, characterised in that the tilting drive acts upon the rearward end, facing the conveyor (5, 5'), of the side wall (11, ') or side walls.

6. Loading implement according to Claim 5, characterised in that the beam comprises two arms (30, 31 or 31') connected with one another by the joint and adjustable in angle in relation to one another and the conveyor (5') is longitudinally displaceably arranged on the vehicle (1).

7. Loading implement according to Claim 6, characterised in that the tilting drive of the shovel acts on its horizontal pivot spindle (8) which coincides with the axis of the forward reversing roller (7) of the conveyor (5').

8. Loading implement according to one of the preceding Claims, characterised in that hydraulic cylinders are used as drives.

9. Loading implement according to one of the preceding Claims, characterised in that the conveyors (5, 5') are formed as armoured chain conveyors.

10. Loading implement according to one of the preceding Claims, characterised in that the further conveyor (12) is provided with a continuous breaker (37).

11. Loading implement according to one of the preceding Claims, characterised in that the vehicle (1) and the beam are pivotable in relation to one another about a vertical axis.