SU1283303A1 - Dragline working equipment - Google Patents

Abstract

The invention relates to earthmoving machines and allows to expand technological capabilities and improve loading conditions in vehicles. Work equipment includes boom 1, head unit 2, directional blocks 3.6 and blocks 5.4, bucket 7, pull 8 and lifting 9 ropes. Through the head unit 2 reserve

Description

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There is an additional rope (DK) 10. At one end of the DK 10, the lifting block 11 is fixed. The other end of the DK 10 is connected to the stop 12. The latter is fixed on the lifting cable 9 above the discharge block. A trailing unit 14 is located in the middle part of the boom 1 above the guide block 6 of the hoisting rope 9. The lengths of the haul rope 8 and the hoisting rope 9 are determined from the ability of the dragline to work as a bottom face at the maximum radius and Lubine scoop. The length of the DC 10 is defined as the sum of the distance from the head unit 2 to the stop 12 at the maximum depth and the digging radius. The installation site of the guide block and the tracking block 14 is determined by the distance from the head unit 2. This distance must be more than half the length of the DC 10. The device allows you to expand the technological capabilities of the dragline by ensuring its operation with the greatest possible radius and depth scoops. 5 il.

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

The purpose of the invention is the expansion of technological capabilities and the improvement of loading conditions in vehicles.

Figure 1 shows a diagram of a set of soil, side view; figure 2 - diagram of the unloading of the bucket into the vehicle, side view; on fig.Z - scheme of storing ropes in the transport position; figure 4 - the same, when unloading the bucket; in FIG. 3, the trajectory of the movement of the bucket when lowering it to the surface of the bottom, side view.

The working equipment includes boom 1, head unit 2, directions of the unit 3 t of rope, block

4 hoisting rope superstructures, block

5 superstructure traction rope, the guide block 6 of the lifting rope, installed in the middle part of the boom

I, a bucket 7 with a strand, a haul rope 8, a hoisting rope 9. With this, an additional rope 10 is stored through the head block 2, the hoisting block is fixed at one end

II, and the other end is connected to an anvil 12, which is attached to the hoisting cable 9 above the discharge cable. block 13. In the middle part above the guide block 6 of the hoisting rope, a trailing block 14 is installed. The boom cable 8 is connected to the pulling chains 15, stocked through the guiding block 3 of the boom rope

block 5 of the superstructure of the haul rope (for small models of draglines, block 5 of the superstructure of the haul rope may be absent) and mounted on the drum of the traction winch 16.

A lifting rope 9 with an anchor 12 fixed on it is connected to the lifting chains 17, stored through the lifting unit 11, passed between the guide unit 6 and the next to the terminal 14, stored through the block 4 the lifting structure of the lifting rope and fixed on the drum of the lifting winch 18 The lengths of the tow rope 8 and the hoisting rope 9 are determined from the ability of the dragline to work below.

bottomhole at maximum radius and depth of grab. The length of the additional rope 10 is roughly defined as the sum of the distance from the head unit 2 to the stop 12 at

the maximum depth and radius of the dragline drawing, or with a minimum drawing radius when the bucket is in close proximity to the turntable and the

the safe distance between the lifting unit 11 and the head unit 2. The installation location of the guide block 6 and the tracking unit 14 is determined by the distance from the head unit

2, which should be more than half the length of the additional cable 10. The excavator works as follows.

3

The set of soil is carried out by pulling the rope rope 8. In this case, due to the movement of the bucket 7 on the bottom surface, the length of the branch of the additional rope 10 decreases on the section of the head block 2 — stop 12 and, accordingly, the length of the branch on the section of the head block 2 increases — the lifting block 11. The resulting bina of the hoisting rope 9 is selected by the lifting winch 18, which works with a force insufficient to detach the bucket 7 from the bottom surface

After finishing the set of soil, the driver increases the tension of the hoisting rope 9, as a result of which the bucket 7 is thrown away from the bottom surface. In the process of lifting the bucket 7, the hoisting rope is wound onto the lifting winch 18 and the lengths of the branches of the additional rope 10 are simultaneously pronounced on the segments of the lifting block 11 - the head block 2 and the head block 2 - the stop 12. After that, the stop 12 comes into contact with the lifting block 11 or its holder and the movement of the hoisting rope 9 along the lifting unit 11 is stopped. This allows, when approaching the bucket 7 to the place of unloading, it can be suspended on the hoisting cable 9 and two branches of the additional cable 10. As a result, oscillations of the bucket 7 are reduced and the unloading accuracy is improved. In addition, the engagement of the stop 12 with the lifting unit 11 or its holder allows the bucket 7 to be installed at the required discharge height. Having precisely installed the bucket, for example above the dump truck 19, the machinist loosens the rope 8, the bucket 7 tilts and the rock unloads into the truck body without spilling. Reducing the bucket oscillations allows reducing the time for its installation above the vehicle and increasing the performance of the excavator.

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After unloading the bucket 7, the driver rotates the excavator in the stoton bottom. At the same time, the hoisting cable 9 is etched out. At the initial moment of time. the weakening of the lifting rope 9 leads to the rotation of the lifting unit 11, the stop 12 and the bucket 7 around the head unit 2.

Further etching of the hoisting cable 9 leads to separation of the lifting unit 11 and the stop 12. The stop 12 and the associated bucket 7 with the guide along the trajectory I lowers to the surface of the slab, and the lifting unit 11 moves along the trajectory II in the direction of the head unit 2. B further the cycle of work is repeated.

Thus, the proposed device allows to significantly expand the technological capabilities of the dragline intended for loading vehicles, as it ensures its operation with the maximum possible radius and depth of scoop.

Claims (1)

Claim 1. The working equipment of an excavator-dragline, including the head block mounted on the boom and, in its middle part, the guide block through which the lifting rope, the bucket with the straightening and unloading block, the haul rope and the winches, characterized in that, in order to expand technological capabilities and improving the conditions of loading into vehicles, it is equipped with an additional rope stored through the head block, one end of which has a lifting unit that is interoperable with a hoisting rope The lock, and d {5th), is a stop connected to the lifting rope above the discharge unit, while the boom has a follower unit mounted above the guide block and disposed with the ability to interact with the lifting rope. five fPaz.l 4.5 FIG. 2 1c 18 17 7s Fi & 4