DE1658017B2 - Bucket wheel excavator for digging trenches - Google Patents

Description

658 017

maintained sole remains The follower 4 includes to this end a telescopic rod 15 (Fig. 3), ^e eui tie-rod 16, and a control slide 17.

The telescopic rod 15 has an iron end by means of _{,. ^ Dert aas ri}

JSSa ^ a ¹ S = SSTa S ^ z ₃₅ S

Support frame 11 attached. The pull rod 16 ( ^{FIG. 3) h} - ^{17 is connected to the left skin of} the telescopic rod 15 and to the control slide 17, which is connected to the right half of the telescopic rod 15.

The articulation points of the telescopic rod 15, the

The fulcrum point of the support frame 11 with to _trench bumps ven — v - ■

Swivel frame 2 connecting link on ^ Trag- ι, g ^ ™ ~ ££ be moved, frame 11 and the pivot axis 7 of the swivel dert in Langsncniu _s

1 sheet of drawings

Claims (1)

With regard to the bottom of the trench, they are different Claim: Trench profiles are created. The invention has for its object to be a Bucket wheel excavator for digging trenches, bucket wheel excavators of the type mentioned at the beginning with two inclined bucket wheels, which are to be formed at 5, that the bucket wheels are supported in their position against a support frame that attaches hydraulically pivotable to the swivel frame on a swiveling frame above the bottom of the trench, independently of the swivel motion swivel frame when setting is ordered, and maintained with a copy wire or changing trench depths.
Light beam follower from which to switch- This is achieved according to the invention in that the depth of the trench, to obtain a level, io the follow-up device a telescopic rod, one end of which is continuously running trench bottom is pivoted on the support frame and the other end is pivoted on the swing frame, thereby articulated chassis frame, and a tie rod characterized in that the follow-up device has, one end of which with the movable (4) a telescopic rod (15), one end of which is connected to the telescopic rod and the other end of which is connected to the support frame (11) and whose other end 15 is connected to a control slide that is hinged to the chassis frame (6) , and a Support frame on the swing frame by means of a Len pull rod (16), one end of which is suspended from the movable end of the telescopic rod (IS) * by means of a pivot cylinder and the pivot points of the telescopic rod, the other end with a control slide - The pivot point and the pivot axis of the swivel (17) is connected that the support frame (11) ao frame on the Fahrwer frame in the working position on the swivel frame (2) by means of a handlebar and corner points of a parallelogram and that is suspended by means of a swivel cylinder (9), length variance of the telescopic rod due to the fact that the articulation points of the telescopic rod (15), pivoting of the swivel frame by moving the articulation point of the The handlebar on the support frame of the spool of the swivel cylinder is acted upon (11) and the swivel axis (7) of the swivel 25 is hit that the change in length of the telescopic frame (2) on the chassis frame (6) is reversed in the working rod.
position the corner points of a parallelogram. (ABCD) and that in the event of length changes which would disturb the parallelism in the parallelogram of the telescopic rod (15) as a result of pivoting, the telescopic rod restores the pivoting frame (2) by shifting 3 ° parallelism The control slide (17) ensures that the pivoting cylinder ensures that regardless of being driven over by the (9) it is acted upon in such a way that the length of any unevenness in the floor reverses the paddle wheels and the telescopic rod (15) always retains its position relative to the bottom of the trench will. ten. This creates a constant trench profile 35 excavated. An embodiment of a bucket wheel excavator according to the invention is based on the drawing explained. It shows F i g. 1 is a side view of the bucket wheel excavator, The invention relates to a paddle wheel 40 F i g. 2 the floor plan of this excavator and
excavator for digging trenches, with two inclined F i g. 3 a kinematic diagram of a die stationary paddle wheels, the carrying device holding paddle wheels on a support frame,
The bucket wheel excavator consists of a caterpillar bar that can be swiveled, and with a tractor 1, a swivel frame 2, a working pier wire or light beam following device, of which 45 organ 3 with two inclined bucket wheels 12 when changing Trench depth to maintain a leveling and a follow-up device 4. For better trenching, the continuously running trench floor is swiveled to the excavator vehicle when the mobile swivel frame is used. position and for attaching other equipment There is a bucket wheel excavator with a shovel engine and driver's cab of the crawler tractor 1 wheel are known, which is advanced on a support frame 50 pivotable in the direction of travel and is located in front of a special frame 5 arranged on a pivoting frame hydrau-
lisch is arranged to be pivotable (USA.-Patent- On the chassis frame 6, on the carrier of the scripture 2 834 125). By means of pivoting movements of the crawler tractor 1, a pivot axis 7 Swivel frame and the support frame, it is possible to articulate the swivel frame 2, which with the help of Hch, the support frame with the paddle wheel in a 55 hydraulic cylinder 8 is vertically pivotable. That To keep a favorable horizontal position for the operation, the working element 3 is so widened on the swivel frame 2 the bucket wheel excavator hangs on uneven terrain that it is with the help of swing cylinders 9 and L drives. However, if the bucket wheel excavator two 10 in the vertical direction and horizontal direction f has paddle wheels which are inclined so that they can be pivoted about a joint 14. the problem occurs that the inclined position 60 the latter are on the swing frame 2 and on one the paddle wheels certain profile of the trench is hinged to the support frame 11 of the working organ 3, the changes when the dot excavator drives over bumps, from the bucket wheels 12 and from embankment planers even if there is a copy wire or light 20. Beam follower and corresponding control The hydraulic cylinders 8 raise the support frame It is ensured that the paddle wheels of the combined 65 11 with the paddle wheels 12. The swivel cylinders 9 ,: desired trench bottom independently of the terrain pivoting while the support frame 11 around a hinge \ *. follow course. In these subsequent movements 13 changes in such a way that at any lifting height the 3 ;, «I always keep the inclined position of the paddle wheels Position of the paddle wheels 12 in relation to the trench