SU1344869A1 - Dragline working equipment - Google Patents

Abstract

The invention relates to earthmoving machines, increases the productivity and reliability of the working equipment of a dragline excavator. For this, the bottom 5 of the front part is hinged, for example by means of the axis 16, connected to the side walls 2 and the cutting hood 6. In the rear part of the bottom 5, the frame 13 is fastened, which covers the rear wall 3 on the outside. 4 00; o

Description

The cable 14 is connected to the cable 15. In the front part of the bottom 5, stops 20 are installed on its sides. In the transport position, the bottom 5 is kept from turning on the axis 16 by means of a frame, the bar of which engages with the lock bolt 14. When installed above at the place of unloading, the driver increases the tension of the drive rope 15, the lock 14 operates and releases the frame 13. The bottom 5 turns.

The invention relates to earthmoving machines, and more specifically to dragline excavators.

The purpose of the invention is to increase productivity and reliability.

FIG. 1 shows the working equipment, dragline excavator, vi in plan; in fig. 2 shows section A-A in FIG. one; in fig. 3 - working equipment of a dragline excavator, rear view.

The working equipment of an excavator-dragline includes a bucket 1 with side 2 and rear 3 walls, an arch 4, a bottom 5 and a cutting hood 6, pulling 7 and lifting 8 chains, a unloading unit 9, a pulling 10, a lifting 11 and unloading 12 ropes, a frame 13, a lock 14 and a drive cable 15. At the same time, the front part of the bottom 5 is, for example, pivotally connected to the side walls 2 and the cutting hood 6 by means of an axis 16. In the rear part of the bottom 5 a frame 13 is fastened, which extends outside the rear wall 3. . Frame 13 may have a different shape and size depending on the configuration and the pair. 3 meters of rear wall. The frame 13 (Fig. 3) consists of two bars (for example, channels) 17, curved in the form of the rear wall 3, and one bar 18, welded to each other. The lower ends of the bars 17 are welded to the rear part of the bottom 5. The lock 14 is mounted on the rear wall 3, for example, on its upper end. The lock 14 may be the simplest mechanism consisting, for example, of a two-arm lever, to one arm which is attached

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On the axis 16 until the contacting of the lugs 20 with the limiters fixed on the inner sides of the side walls 2. The angle of inclination of the fingering | a 5 is sufficient to completely drain the entire rock. At this position, the bottom 5 eliminates the time spent on preparing the bucket for collecting soil in each working cycle, which increases productivity. 3 il.

water cable 15, ac with another arm connects a bolt that interacts with bar 18 of frame 13. Drive cable 15 of lock 14 is stored through an additional block 19 mounted on the holder of the unloading block 9 and secured to the drum of the drive winch, which is placed on the rotary platform or at the bottom of the excavator boom. In addition, in the front part of the bottom 5, stops 20 are mounted on its sides for engagement with limiters 21, which are fixed on the inner sides of the side walls 2.

The working equipment of the excavator dragline works as follows.

After the termination of a set of soil, which is carried out in the usual way, i.e. With the help of the tension of the traction rope 10, the bucket 1 is detached from the surface of the bottom and transported to the right place of discharge. In the transport position, the bottom 5 is kept from turning on the axis 16 by means of the frame 13, the bar 18 which engages with the lock of the lock 14. The tension of the drive cable 15 is supported automatically by the drive winch, the developing force is insufficient to operate the lock 14, At the same time on the hinges , the frame 13 and the lock 14 acts force of the rock and bottom of the rock. The storage of the cable 15 through the additional block 19 ensures the practically constant position of its branch in the section lock 14 - the additional block 19 with respect to the lock 14

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at any position of the cowgaw in the scorch space. By this, conditions are created to trigger the lock when the bucket is located at different heights and distances from the turntable.

Having installed the bucket over the desired place of unloading, the excavator driver increases the tension of the drive cable 15, as a result of which the lock 14 operates, releasing the frame 13. Under the force of the gravity of the rock, the bottom 5 rotates on the axis 16. This occurs before the interlocking of the stop 20 21, which ensures the minimum tilt angle oi of the bottom of the bucket (Fig. 2), which is sufficient for the complete precipitation of the entire rock. The position of the bottom 5, the stops 20 and the frame 13 at the end of the unloading is shown in FIG. 2 dotted line. When operating a dragline excavator with sticky rocks, the stops 20 of an appropriate length can be used as sidewall cleaners of adhered rock.

After the end of the unloading, the bucket 1 is returned to the face. Since, due to the interaction, when unloading the lugs 20 and stops 21, the bottom of the bucket 5 forms an acute angle 0 with the side walls 2, then when the bucket is lowered onto any surface, the bottom of the body under its own weight always lowers to the bottom. It does not require the weakening of the traction rope and you can immediately begin to collect the soil, since the rock coming from the cutting goat 6 to the inner surface of the bottom 5 does not prevent the connection of the frame 13 from the rear

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step} {which 3 with the help of lock 14. Thus, the time spent on preparing the bucket for soil collection in each working cycle is eliminated, which increases productivity. At the same time, the process of grounding the excavator dragline with the proposed working equipment does not cause additional loads on the attachment points of the lifting chains 8 to the bucket body, frame 13, lock 14 and axis 16, which increases the reliability and durability of the working equipment elements.

Claims (1)

Invention Formula The working equipment of a dragline excavator includes a bucket containing side and rear walls, a cutting visor, an arch and a bottom, traction and lifting chains, a discharge unit with a yoke, traction lifting and unloading ropes, a frame and a lock with a driving rope, different in that, in order to improve performance and reliability, the bottom of the front part is pivotally connected with the cutting hood and side walls, which have stops inside, and in the hinge zone the bottom has stops that can be cooperated with the limiting body, while the frame is rigidly connected to the rear part of the bottom and is located with the possibility of covering the rear wall of the bucket on which the lock is mounted with the ability to interact with the frame, and the holder of the unloading unit has an additional block through which the lock drive cable is stored. T ;four Editor A.Revin Compiled by I.Sinitska Tehred L.Oliynyk. Order 4894/31 Circulation 606 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Iro-izpvedstvenno-polygraphic enterprise, Uzhgorod, st. Project, 4 (re.e. Proofreader M. Demchik