DE1874793U - SHOVEL LOADER WITH CHAIN OPERATED SHOVEL. - Google Patents

Description

Essen, April 9, 1965 (19 159 / Gs / th)

Patent attorneys

Dr.-Ing. Sdel
Dr Andrsjswski

Food, Keifvviger sir. 36

IAm Houptbchnlioi Lichfburg)
Telephone 25802

Utility model registration of JPirrna Atlas öopco Aktiebolag

Έ a c k a / -Sweden-

Shovel loader with chain operated

Shovel.

The invention "relates to shovel loaders having a Shovel or the like. Which on a frame via one or more chains from a digging position in a raised unloading position is movable. Such loaders are generally used in mining, tunneling or in other underground work used to make pels, ore or To load coal or other material into a container or the like, which is provided on the loader itself or can be attached to it or is otherwise linked to it. Especially when loading blasted ones lelsbrocken, as well as loaders on which the

The bucket structure is arranged to be pivotable. Chains used to operate this structure are subjected to severe tension and jolts. Such shocks occur especially when the bucket is tilted and the tilting movement by changing the direction of travel of the motor actuating the structure is counteracted. The chain or chains connecting the shovel to the Connect motor are not yielding without τ / pus enough to provide a desirable reduction in shock loads in the operating mechanism of the bucket to achieve.

The invention has therefore set itself the task of providing a To provide operating mechanism for such a bucket structure which works more resiliently than such previously known actuation arrangements to the To reduce shock loads in the chain and the parts connected to it.

The arrangement according to the invention has a further special feature compliant arrangements in the actuation mechanism for the shovel, which strongly damping works.

As a further special feature, flexible arrangements are provided, which can be used in the simplest possible way in shovel loaders conventional design can be installed and which can be grown quickly and without difficulty and can be dismantled again.

A shovel loader according to the invention has a frame, a shovel structure swingable on this Eahmen, an actuating motor for the bucket assembly, which is seated on this frame, through which this structure is swingable from a digging position in front of the loader to an unloading position, one of This motor set in rotation shaft, a link chain to connect this structure with this Engine, and arrangements, such as a kink point for this chain between the engine and a hitch point on the bucket structure, this chain being over and in contact with these assemblies between this attachment point is carried on the bucket structure and one attachment point on the motor shaft, as well as compliant arrangements associated with this chain at any of these points; and shock loads in this chain in both parts of the chain between these points can decrease.

The invention is illustrated below with the aid of some exemplary embodiments depicting figures explained in more detail; show it:

Figure 1 is a perspective view of a pivoting shovel loader, in which the shovel is unloaded into a container seated on the loader;

ligur 2 the front part of the loader of Figure 1 from the Side view and partly in longitudinal section, the operating mechanism for the shovel you can see;

Figure 3 is an exploded view of a holder for an idle roller, over which the shovel actuating chain runs away;

Figure 4 shows a similar holder as in Figure 3 in a perspective view with elastic mounted roller;

FIG. 5 shows a horizontal section through the roller axis along the line V-V of Figure 4;

Figure 6 is an exploded view of a modified roll holder from Figure 3;

Figure 7 is a perspective view of the connection between the chain and the bucket assembly;

FIG. 8 shows a detail from FIG. 7 along the line VIII-VIII;

FIG. 9 shows a chain reel driven by the motor, and

FIG. 10 shows an exploded drawing of the reel structure Figure 9.

The shovel loader shown in Figures 1 and 2 has a frame structure 1, which by a not The pulling motor shown is movable by actuating a control lever 3 on four wheels 2. The loader is provided with a container 4, which is tilted by not shown pressure cylinder and to the rear or can be unloaded from the side, as in conventional machines of this type. Depending on the tipping direction is then the rear or the side conversion of the container

open so that the loaded material slips out of it can. At the front end of the frame is a bucket assembly with a shovel 5 and arms 6 pivotably mounted on strong pins 7 on the front part of the frame 1. The shovel structure 5> 6 is from the digging position shown in Figures 1 and 2 in a raised unloading position, in which the contents of the bucket are unloaded into the container 4. the Looping movement is approximately 180 ° until the blade assembly by a bundle of τοη leaf springs 8, which work together with the arms 6 and at the front end of the frame are attached, is locked. The shovel structure is moved from the digging position to the unloading position via a link chain 9 moves which on the labe 52 of a chain reel 10 of any suitable reversible motor 11 is driven by actuating a lever 41.

The chain 9 is connected to the bucket structure via a holder screwed to the bucket 5 and runs Via a roller 13 rotatably mounted on a shaft 14, which is seated on a holder 15 which is attached to the front part of the Frame 1 can be attached in a wide variety of ways, as will be explained below? / Ird. In which In Figure 3 illustrated embodiment, the holder 15 has a base plate 16, which in four large rubber blocks 17 is mounted, which are made of resilient rubber material and in two U-profiles 18 held in place by screws 19. These screws are in threaded holes 20 in two side

share 21, which is part of the front end of the frame 1 form, screwed in .. The rubber blocks 17 allow the bracket 15 to give a little when Impact loads occur in the chain 9 running over the roller 13.

Figures 4 and 5 show a modification of the holder 15 from Figure 3, in which the roller 13 on the shaft is elastically mounted. For this purpose, a bush on two steel tubes 22 and 23 sits on the shaft 14, between which a strong soft rubber bushing 24 is vulcanized is. On this sleeve 23, the roller 13 runs on needle bearings 25, which between the items the holder 15 are held in place by spacers 26. Me rubber bushing 24 results in an elastic one Storage of the roller 13, through which the impact loads in the chain 9 are absorbed can. If this rubber bushing 24 is made strong enough, even the rubber blocks can under certain circumstances 17 can be omitted.

In the modified design of the holder 15 according to Figure 6, this holder has a base plate 27, which forms part of a hinge which is pivotable about bolts 28, which of the hinge parts 29, which sit on the front part of the frame 1, are worn. These bolts 28 are through washers and cotter pins 30 held in place. The base plate 27 is offset in 31 and rests with this offset

! eil on a large rectangular rubber block 32, which is mounted on an angle iron 33. The base plate 27 and the elastic rubber block 32, as well as the angle iron 33 are through with the side parts 21 of the frame Bolts 34 and nuts 35 connected, these nuts being splinted onto the screw bolts. It is clear that through this soft rubber block 32, the bracket 15 to a limited extent in the event of impact stress can yield elastically in the chain 9. A roller 13 as shown in Figures 3 or 4 and 5, can of course in the same quiet as in these figures on a corresponding axle pin which is passed through the holes 36 and is splinted.

The scoop mechanism can give a certain amount of laughter can also be granted by the fact that a holder 37 for the chain 9 on the shovel, as in FIGS and 8 is provided. The chain 9 is in this case with the upstanding lobes 37 over a corresponding bolt 38 is connected and the holding part has a base plate 39> which is elastically connected to the blade 5 by four cotter pins 40, between the IC castle nuts 41 and the base plate 39 a set of üellerfedern 42 is used, so that the base plate 39 easily when occurring Impact loads on the chain 9 can give way.

In Figures 9 and 10, a suitable chain reel 10 is shown, which alone or in connection with Any of the aforementioned arrangements BEZW the required suspension. laughter in the mechanism for Actuation of the chain can result. For this purpose, the chain reel 10 is equipped with a rim 43, which has a number of radially extending lugs 44. The rim 43 with its lugs 44 works with a Washer 45 together, which has a number of corresponding lugs 46, which radially on one side of the disc 45 and fit between the lugs 44 when the disc is inserted into the rim 43 is. However, the projections 46 only fill a portion the space between the lugs 44 of the rim and the remaining space is formed by a number of segment-shaped rubber blocks 47 made of elastic soft rubber so that the disk 45 can be rotated slightly with respect to the rim 43 on the reel 10 can. The reel 10 is driven by the motor 11 via a spline Shaft 48 driven, which in a corresponding splined opening 49 in the disc 45 fits. The disc 45 is on the Y / Elle 48 by a Locking screw screwed into the shaft from the outside with washer 50 is held in place. These Formation of the rubber blocks 47 results in a very effective elasticity in the power transmission between the shovel actuating motor 11 and the chain 9, which in a known manner on the labe of Reel 10 can be attached.

The elastic arrangements described above can either be used individually or in combination with one another used to achieve the required elasticity in the chain link, depending on the load between the engine 11 and the blade assembly 5,6. Try under the toughest conditions have shown that such elastic arrangements the life of the chain 9 in loaders of the aforementioned Extend the species significantly.

Expectations;

Claims (8)

S oportance claims. 1 · Shovel loader with a frame, a shovel structure arranged to pivot on this frame, a Motor on this frame to operate this structure to move the bucket from a digging position in front of the loader to swing into an unloading position with a shaft driven by this motor and a link chain, connecting the blade assembly to the engine, characterized in that arrangements are provided between this engine and a hitch point on the bucket assembly for this chain To form a turning point, this chain being above and in contact with these arrangements between this an- suspension point is guided on the blade structure and a suspension point on the motor shaft, and that elastic Arrangements are connected to this chain at any one of these points, and thereby impact loads in this chain can be reduced in their two parts between these points. 2. Shovel loader according to claim 1, characterized in that that the elastic arrangements are designed as connecting leathers between the chain and the blade structure are. 3. Shovel loader according to claim 1, characterized in that that the elastic arrangement is designed as an elastically mounted guide roller, which in bearings of the frame is stored. 4. Shovel loader according to Ansprucli 3 »characterized that the roller is mounted in an elastic sleeve on a shaft. 5 · shovel loader according to claim 4> characterized in that the roller shaft ζτίβί concentric steel sleeves Aufivist, between them a flexible rubber body is arranged. 6. shovel loader according to claim 3 »characterized in that that the role is seated in a holder on the frame and is elastically resilient between this and the frame Rubber blocks are arranged. 7 »bucket loader according to claim 1, characterized in that the chain which is driven by the motor shaft is wound on a bucket driving reel, and are arranged in which elastic body so that a lachgiebigkeit between the reel and its drive swe lie is achievable . 8. shovel loader according to claim 1, characterized in that that a heavy body is interposed between the link chain and the elastic arrangements. The patent attorneys Dr. Idel, Dr. Andreevsky