SU58590A1 - Mining harvester - Google Patents

Description

In the proposed mining combine with cutting wedges, the latter are placed on a frame reinforced in its upper part, located in order to impart a swinging motion to it, under the action of the engine rod, thus achieving the possibility of developing pit faces.

In FIG. 1 shows a longitudinal section of a combine harvester; FIG. 2 - view in plan; FIG. 3 - combine for passing through blind workings.

The combine consists of a cutting-baffling device, a conveyor and a hydraulic feeding device.

The cutting-baffling device is a system of four or more rows of spade-shaped wedges I, 12, 13, 14, placed on a frame 15 rotatably fixed in the upper part on an axis 18. The latter is mounted on two or more powerful cantilever support beams 2, having additional relieving stops 3.

The frame 15 is set in a swinging motion with the engine brushes 6, for example, in the form of hydraulic cylinders 7 hinged on the housing of the device. During operation, the frame 15 is rotated from the initial position shown in FIG. 1, at some angle; when this occurs, the layer of coal that has fallen into the swing amplitude is chipped off. After returning to the same angle, the chest will be stepped in shape.

After that, the entire combine is moved progressively by an amount equal to the depth of the chip; however, the wedge, when moved, does not meet with coal.

With the following :, the pivots (a, b, c, c1) split the wedge upwards; however, each previous row of paddling wedges is set for the next. Thus, the duty cycle of the destruction of the coal consists of three movements - idle forward movement, punitive cleaving movement, and return swinging movement.

Repulsed coal, with the help of a knife 4, when moving the combine forward, gets on the cross conveyor 5, from which it is loaded onto the conveyor 16.

The movement of the combine is carried out according to the principle of the walking hydraulic feed. At the time of forward movement, the hydraulic column 9 is fixed by the soil 1 and the roof 17, and the piston of the hydraulic cylinder

10, moving forward, moves the combine. The entire stroke of the cylinder 10 is used for several movements (each for the amount of chips), then detachment and tightening of the hydraulic strut occurs.

The hydraulic system is powered by a powerful oil pump driven by an electric motor 8, which is common for a machine combiner. This same engine drives the trailer.

The combine can be inhaled both for the evaluation of coal, and for the preparation of coal or rock during the passage of blind workings (Fig. 3); in this case, only the scheme of the transport device is changed. On the image and on FIG. 3, an example is used with a conveyor with cantilever scrapers, which allows unloading in any place — otherwise, an overload is received on the lateral conveyor belt 16, which moves after the combine and is rearranged.

The combine has a wide range of application for coals of any strength with the presence of large pyrite inclusions with power (formations from 0.7 and higher, as well as for rocks with strength up to 800 kg / cm -.

During the cleaning work, the combine works in the forehead with the capture of approximately 2 meters. At the same time, the operation is carried out without descending, i.e., reaching

the top hook, the harvester turns on 180 °, the drive head of the conveyor belt is rewired and the other side and the notch goes in the opposite direction.

Крв1пле1Н: not go after the combine so that by the time of the end of the cycle all the lava is fixed.

The excavator does not leave a combine; during the formation of pinches, the power height can be adjusted by varying the amplitude of the cuttings of the cutting device.

The performance of the combine depends on the power of a hydraulic installation and with a sufficient degree of automation of all hydraulic processes can be very high.

Ventilation can be made by turning the middle row of supports into a partition by patching the gaps between racks with boards or canvas; In this way, two corridors are obtained for the supply and exit of air.

The subject matter of the invention.

A mining harvester with cutting wedges, characterized in that, in order to be able to develop steerable faces, the wedges are placed on the frame 15, pivotally fixed in the upper part and under the influence of the engine rod, to communicate the frame with oscillatory movements.