US1825956A - Conveyer excavator - Google Patents

Description

Oct. 6, 1931. A. v. HUENNEKENS 19825956 CONVEYER EXCAVATOR Filed Dec. 12, 1929 I2 sheets-sheet 2 1v1/ENT R. V @um vw,

A TTORNEY.

atented ct. 6, 1293i Y PATENT .OFFICE ALPHONSE V. HLUENNEKENS, E MILWAUKEE,.WISCONSIN i coNvEYEa Excnvn'ron.

Application led December 12, 1929. Serial No. 413,516.

rlhisinvention relates to improvements in conveyer excavators or dredges.

With vthe ordinaryexcavator, excavating is accomplished by a series of alternate dig- '5 ging and dumping operations. The excavator is moved to bring the bucket into djgg position and as soon as the bucket' is ed it is raised and dumped and then lowered into digging position again. Obviously 1,0 this is a slow and inefficient procedure.

The present invention aims at the elimination of the above objection by the provision sof. a conveyer vexcavator arranged with conveyers extending from the bucket to a point of if discharge whereby, in the course of an excavation, the bucket does not have to be moved from digging position, but may be moved slowly in a long arc through material to be dug, and the loosened material is received I' 20 continuously within the bucket and is continuously removed therefrom to a point of discharge by moving conveyers.

A further object of the invention is to provide a conveyer excavator in which the bucket may be angularly adjusted with respect to the bucket arm to adapt the bucket to different digging positions.

A further object of the invention is to provide a conveyer excavator which is of very s@ simple construction, is easily operated and controlled, is strong and durable, and is well adapted for the purposes described. With the above and other objects in view the invention consists of the improved conveyer excavator and its parts and combinations as set forth in the claims, and all equivalents thereof.

` 1n theaccompanying'drawings in which 4e the same reference characters indicate the saine parts in all of the views:

Fig. 1 is a side view of the improved conveyer excavator with parts broken away and shown in section and taken on line 1-1 of Fig. 2;

Fig. 2 is a sectional view taken on line 2-2 of Fig.1;

Fig. 3 is a sectional view taken on line of Fig. 1 and on a larger` scale; and

Fig. 4 is a fragmentary side view. of the 50 bucket and bucket arm showing the angular adjustment between the two.

Referring now more particularly to the drawings it will appear that the conveyer excavator includes a cabin 8 enclosing a mo- 55 tive power 9 which furnishes power for the movable parts and mechanisms of the excavator. There are also Within the cabin Winches 10 andll for -the winding and' un- L winding of cables 12 and 13, as well as control 6o levers 14. The cabin and machinery therein arepivotally mounted on a continuous track laying type traction device 15 or other means l of mobility.

Extendingangularly upwardly from the forward end portion of the cabin is a`pivota1. boom 16. Said boom is hollow and the inner end portion of an excavating arm 17 is pivotally mounted on a pivot rod 18.within said boom intermediate vits ends. The upper wall of the boom is provided with an opening 19 through which the curved inner ends. 20 of the sides 20 of the excavating arm extend, and said excavating arm also projects forwardly downwardly through a relatively large opening 2l in the lower wall ofthe boom. The openings 19 and 21 allow pivotal movements of the excavating arm with re spect to theboom.

A cutting lip 22 is carried by the outer end 80 portion of said excavating arm and said cutting lip is of (three-sided form, including a front 23 and a pair of sides 24. The front of the cuttingA lip is provided with projecting teeth 25. A shaft 26 extends through the 85 forward end portions of the sides 20 of the excavating arm and also through the sides .24 of the cutting lip, near the lower front corner portions thereof, andthe cutting lip adapted to be pivotedv or tilted on said shaft 26. Each side 24 of the cutting lip, near its rear edge, is provided with a series of spaced aperturesA 27 arranged 'in an arc and said apertures are adapted to register with similarly arranged apertures 28 in the sides 2O of the excavating arm. Thus, various positions of angular adjustment of the cutting lip with respect to the excavating arm may be attained, as shown in Fi 4, and the' cutting lip is retained in anyl a justed position by bolts 29 inserted through the registering apertures 27 and 28. rlhe excavating arm 17 -is adapted to be pivotally moved on the shaft 18 to raise or lower the cutting arm 22 with respect to the excavation by means of the cables 13 which extend over large pulleys 30 mounted on the outer end portion of the boom and are secured at their outer end rtions to eye-brackets 31 secured to the buc et.

In excavating, the continuous track laying or other mobility type traction device is operated to move the entire conveyer excavator into a proper excavating position, and then the excavating arm is allowed to drop to its lowermost position, as shown in dotted lines in Fig. 1. The excavating arm and cutting lip are then moved upwardly in an arc into the material to be excavated in a slow long stroke. The teeth 25 of the cutting lip will, of course, dig into and loosen thefmaterial and the loosened material will then fall on to the conveyer, striking an angularly disposed forward bale plate 32 and being defected thereby onto the top surface of an endless conveyer 33.

The endless conveyer 33 is operatively mounted within the excavating arm 17 extending lengthwise of the same and its width is equivalent to the distance between the sides 20 of the excavating arm, with slight clearance. Secured transversely to the outer surface of the conveyer at suitable intervals are metallic 'flights 34, while secured to opposite side portions of the under-surface of the conveyer are endless chains 35 extended at their opposite end portions about pairs of cog wheels 36 and 37 mounted fast respectively on the shafts 18 and 26. The drive for the conve'er 33 includes a cog wheel 38.

mounted ast on an end portion of the shaft 18 connected by a chain drive 39 with a cog wheel 40 mounted fast on an end portion of an inner shaft 41. The other end portion of the shaft 41 carries another cog wheel 42 engaged by a chain 43 which extendsto the operating mechanism of the conveyer excavator or any other source of motive wer.

From the foregoing it is evident that the conveyer 33 functions to carry material deposited thereonto by the cutting lip and said material is conveyed from the cuttin lip inwardly rearwardly with respect to t e excavating arm. The upper stretch of the conveyer 'bears the weight of the conveyed maof the conveyer.

terial and said, portion of the conve er is therefore movably supported on space rollers 44 journaled between the side plates 20 of the excavating arm. From the inner or rear end of the conveyer, within the medial portion of the boom 16, the material drops into an o n ended hopper 45 ,mounted through e boom inwardly of and below the inner end portion of the conveyer.

Below the hopper 45 and carried by supporting arms 46 extending forwardly from the excavator traction device frame is a transverseconveyer 17 extending outwardly laterally of either side, or to the rear, or under the machine. The conveyer 47 is similar in construction to the conveyer 33 and rides in a pan having upwardly projecting trough-like sides 48 to retain material on the conveyer. Said conveyer 47 is driven by a chain 49 or other drives extending to asource of power (not shown) and driving a cog wheel 50 fast on an end portion of a shaft 51 By means of the conveyer 47, therefore, material delivered thereonto through the hopper 45 from the conveyer 33 is moved laterally outwardly to the projecting outer end portion of the conveyer 47, at

which point the material may drop into wagons or trucks for further disposal.

It will therefore be seen that by means of the improved conveyer excavator, excavation work is made very simple and expeditious and there are practically no lost motions. The excavator operates continuously, while moved, to dig, and the stroke or path is relatively large. In the ordinary excavator each digging stroke of the bucket is short and then the filled bucket must be moved and dumped, Whereas in the present mechanism the cutting lip digs continuously and material falling thereinto is being constantly carried away and delivered at an appropriate point of discharge into vehicles or receptacles. Furthermore, it is simple, is easily operated and is well adapted for the purposes described. y

What I claim as my invention is:

1. In a power excavator including a boom and a' hollowA arm pivotally carried by the boom, an excavating member for dig g and shoveling perations angularly adJustably carried by e outer end portion of the arm, an endless conveyer movably mounted within the arm and the excavating member and forming a movable bottom for the latter and extending longitudinally of the arm to its inner end portion, a hopper mounted through the boom ad'acent the inner end portion of the arm, an a transverse endless conveyer movably carried b the excavator below said hopper and exten g laterally outwardly of the excavator for discharging material.

2. 'In a ower excavator including a boom and a ho ow arm pivotally carried by the shoveling operations angularly adjustably carried by the outer end portion of the arm, an endless oonveyer movably mounted Within the arm and the excavating member and forming a movable bottom for the latter and extending to the inner end portion of the arm, a hopper mounted through the boom adjacent the inner end portion of the arm, and a second endless conveyer movably carried by the excavator adjacent said hopper and extending outwardly of the excavator for discharging material.

In testimony whereof, I aiix my signature.

ALPHONSE V. HUENNEKENS.

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