RU2330955C1 - Combined cutter loader - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: invention concerns engineering and can be applied in mining industry. The combined cutter loader comprises frame, chassis, feeder unit, transporter, and effector, which includes one central and several side cutting drums and cased gears on handles fixed to the cutter loader frame with the help of a horizontal axis and hydraulic cylinders. At each side the central cutting drum is adjoined by two side cutting drums with their axes parallel and displaced against the central cutting drum axis so, that the gear cases are overlapped with the side cutting drums in the pit-face direction.

EFFECT: production of a combined cutter loader with improved performance and wider application range.

3 dwg

Description

The device is used to develop mineral deposits by the chamber method and conduct mining and preparatory work.

The invention relates to mechanical engineering and can be used in the mining industries.

Known continuous mountain harvester according to US patent No. 3479090, IPC E21C 25/14 and a continuous flow mining mountain harvester 12CM18-10 V (see JOY's brochure), designed to develop mineral deposits using the chamber method and conduct mining and preparatory work

Combines consist of a running gear, a housing, a feeder, a conveyor and an executive body made in the form of horizontally arranged cutting drums and cutting chains that overlap the drive bodies from the bottom side. The executive body makes a swinging movement in a vertical plane to the entire height of the output. The rock mass destroyed by the executive body is loaded by a feeder onto a central scraper conveyor. In the rear of the combine, the conveyor is unloaded onto vehicles installed behind the combine. Cutting drums with cutting chains form the roof and working soil.

The reasons that impede the achievement of the technical result indicated below when using a known combine include the fact that the known device uses cutting chains to overlap the drive bodies. Cutting chains have a small resource of work during the operation of the combine for the extraction of viscous and strong coals and ores, such as potash. To drive the chains, additional power must be supplied, which is not used efficiently - a significant part of the power is spent not on cutting, but on overcoming friction forces. In addition, cutting chains complicate the design.

The closest harvester of the same purpose to the claimed invention in terms of features is a continuous-cut vertical harvester manufactured by LONG-AIRDOX, Great Britain (see the brochure of LONG-AIRDOX). The overall layout is similar to a mining machine in US Pat. No. 3,497,090, with the exception of the executive body. The executive body contains one central and two peripheral cutting drums, the rotation of which is carried out by drives located in the drums. Power is supplied from two electric motors by shafts passing through the casing - vertical supports. This design of the drum drives allows for the processing of the face across the entire width of the Executive body without the use of cutting targets.

The reasons that impede the achievement of the technical result indicated below when using a well-known combine adopted as a prototype include the fact that in the area of buildings - vertical supports - pillars 70-80 mm wide are formed, which is a constraining factor when the combine is working for the production of viscous and hard coals and ores, such as potash. This disadvantage significantly limits the scope of such a combine. Peripheral cutting drums cannot form horizontal soil and at the same time an oval shape of the roof, which reduces the performance of the combine. In addition, the design of the drive gear of the cutting drum located inside the drum reduces its reliability, while increasing the complexity of its maintenance and repair.

The essence of the invention lies in the fact that the claimed device expands the scope and improves the performance of the combine.

The specified technical result, which can be obtained by carrying out the invention, is achieved by the fact that in the inventive combine harvester comprising a housing, a running gear, a feeder, a conveyor, an actuator, including central and peripheral cutting drums, actuators located in the housings and mounted on the handles, mounted on the combine body using a horizontal axis and hydraulic cylinders, on each side to the ends of the central cutting drum are adjacent two peripheral cutting drums, the axes of which are parallel and are offset relative to the axis of the central cutting drum so that the drive housings are closed from the bottom by peripheral cutting drums, i.e. there are no pillars between the central and peripheral cutting drums, and the lower peripheral cutting drums form the soil, and the upper - the roof of the mine.

Such a constructive decision of the executive body, when two peripheral cutting drums are adjacent to the ends of the central cutting drum on each side, with a minimum clearance between the ends, due to the fact that the axes of the peripheral cutting drums are parallel and offset relative to the axis of the central cutting drum so that the drive bodies blocked from the bottom by peripheral cutting drums - provides a continuous line of destruction of the bottom across the entire width of the mine, eliminates the presence of pillars between the individual parts of the uschih drums, providing guaranteed cutting face at the harvester for viscous and hard coal or ores. In addition, the peripheral cutting drums give the optimum shape to the workable cut: the two lower ones align the soil with the central cutting drum in one plane; the two upper ones form the roof configuration - from flat to more stable - oval.

A comparison of the inventive combine with the prototype allows us to conclude that in the latter there are no signs similar to the significant distinguishing features of the claimed combine:

- on each side, two peripheral cutting drums are adjacent to the ends of the central cutting drum, the axes of which are parallel and offset relative to the axis of the central cutting drum so that the drive bodies are blocked from the bottom by peripheral cutting drums;

- the lower peripheral cutting drums form the soil, and the upper - the roof of the mine.

The set of features of the proposed technical solution has a difference from the prototype and known analogues and does not follow explicitly from the studied prior art, therefore, the authors believe that the object is new and has an inventive step.

The invention has an inventive step and due to the fact that a combination of features, namely

- on each side, two peripheral cutting drums are adjacent to the ends of the central cutting drum, the axes of which are parallel and offset relative to the axis of the central cutting drum so that the drive bodies are blocked from the bottom by peripheral cutting drums;

- the lower peripheral cutting drums form the soil, and the upper - the roof of the mine;

solves the task of expanding the scope and improving the performance of the combine. These signs are interconnected so that when one of them is eliminated, the technical result obtained by the invention disappears.

The invention also represents a certain step in the development of technology and is progressive, since it allows you to expand the scope and improve the performance of the combine.

The harvester in which the invention is claimed may find wide application in the mining sector of the national economy, that is, it is an industrially applicable technical solution.

The achievement of the technical result during the operation of the combine is ensured by the fact that

- on each side, two peripheral cutting drums adjoin the ends of the central cutting drum, the axes of which are parallel and offset relative to the axis of the central cutting drum so that the drive bodies are blocked from the bottom by peripheral cutting drums, this technical solution expands the scope of the combine due to the absence of pillars between the individual parts of the drums, providing guaranteed cutting of the face when the combine is working on viscous and hard coals or ores;

- the lower peripheral cutting drums form the soil, and the upper ones - the roof of the mine, this improves the performance due to the fact that the two lower ones align the soil with the central cutting drum in one plane; the upper two - form the configuration of the roof from flat to more stable - oval.

The essence of the invention is illustrated by the accompanying drawings.

The drawings show:

Figure 1 - General view of the harvester (side view);

Figure 2 - view of the executive body (side view);

Figure 3 - view of the executive body with the shape of the face (front view).

The harvester (Fig. 1) consists of a housing 1, a running gear 2, a feeder 3, a conveyor 4, an actuator 5, including a central cutting drum 6, to the ends of which are adjacent peripheral cutting drums - lower 7 and upper 8, drive 9 placed in the cases 13 (Figure 2) and mounted on the arms 10 (Figure 1). The arms 10 of the executive body 5 are mounted on the housing of the combine 1 using the horizontal axis 11 and hydraulic cylinders 12. The housings 13 of the actuators 9 (Figure 2) are closed from the bottom by peripheral cutting drums 7 and 8, and their axes 14 are parallel and offset relative to the central axis 15 cutting drum, therefore, the ends 16 of the peripheral cutting drums can abut with minimal gaps to the ends 17 of the central cutting drum (Figure 3) on each side. The drive 9 rotates the central cutting drum 6 and the peripheral cutting drums 7 and 8. The lower peripheral cutting drums 7 form the soil together with the central cutting drum 6 in one plane. The upper peripheral cutting drums 8, depending on the stability of the roof, can take the form from cylindrical to conical, forming, if necessary, a roof with greater stability (Figure 3).

The harvester works as follows.

The Executive body 5 using the hydraulic cylinders 12 is rotated around the axis 11 in the upper position. Turning on the drive 9 cutting drums, the combine using the chassis 2 is fed to the bottom for the size of the notch (approximately 1/4 of the diameter of the Central drum).

After the required value of the feed of the combine to the bottom, the executive body is lowered down by the hydraulic cylinders 12. The destruction of the bottom when both the notch is in the upper position and when it is lowered down occurs using horizontal cutting drums - central 6 and peripheral 7, 8, which are equipped with a cutting tool across the entire width of the output. The destruction of the bottom in the area of the housing 13 of the actuators 9 is due to the fact that the housing 13 is blocked from the bottom by peripheral cutting drums 7 and 8 (both when notching in the upper position and when lowering the actuator down). In this case, the rotation of the peripheral cutting drums 7, 8 is ensured by gear pairs in the drives 9 connecting them to the central cutting drum 6. The broken rock, falling onto the feeder 3, is transported to the place of reloading by conveyor 4 to the delivery vehicles operating in combination with the combine. After the completion of the working cycle for ore breaking (notching and rocking down), the executive body moves to its original upper position, and the cycle repeats.

In the proposed combine due to the fact that on each side to the ends of the Central cutting drum adjoin two peripheral cutting drums, the axes of which are parallel and offset relative to the axis of the Central cutting drum so that the drive housing is blocked from the bottom by peripheral cutting drums, and the lower peripheral cutting drums form the soil, and the upper ones - the roof of the mine - expand the scope and increase the performance of the combine.

Claims (1)

A mountain harvester comprising a housing, a running gear, a feeder, a conveyor and an actuator including central and peripheral cutting drums, drives housed in housings and mounted on handles fixed to the harvester housing using a horizontal axis and hydraulic cylinders, characterized in that each two peripheral cutting drums adjoin the ends of the central cutting drum, the axes of which are parallel and offset relative to the axis of the central cutting drum so that the drive housings are overlapped with face torons by peripheral cutting drums, the lower peripheral cutting drums forming the soil, and the upper ones forming the roof.

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