RU2319835C1 - Heading-and-winning machine - Google Patents

Abstract

FIELD: mechanical engineering, particularly in mineral resource industry.

SUBSTANCE: heading-and-winning machine comprises chassis, bench unit, upper cutting device, conveyer, planetary-and-disc executive tool, displaceable rotation reducer, two executive tool reducers and two distribution reducers. The distribution reducers include body with central starting borers and two arms provided with intermediate and output shafts. Main cutting discs are installed on output shafts. Additional cutting discs are mounted on intermediate shafts so that cutting planes thereof are shifter with respect to main cutting disc planes and discs are partially overlapped one with another. Main and additional cutting disc axes are in single plane transversal to face. Main cutting discs are as close as possible to bench unit.

EFFECT: extended functional capabilities and improved service performance.

3 dwg

Description

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

Known combine type "Ural-20" (see Malevich N. A. "Mining machines and complexes", Moscow, ed. "Nedra", 1980, pp. 229-232, table 5.4), intended for the mechanization of treatment and sinking works in the mining industry. The harvester consists of a running gear, a Berm body, an upper breaker device, a conveyor and an executive body with cutting discs and flat planetary drills. The rock mass, destroyed by the executive body, is loaded with a berm organ on the central scraper conveyor. In the rear of the combine, the conveyor is unloaded onto vehicles installed behind the combine. The upper fender device forms the roof of the mine, the berm organ - the walls and the soil of the mine.

The reasons that impede the achievement of the technical result indicated below when using a well-known combine include the fact that in the known device flat planetary drills, each of which, made in the form of two rotating disks with cutters at the ends of the disks, grinds the ore during breaking, which worsens the particle size distribution broken ore and contributes to additional dust formation. In addition, additional drives zaburnki complicate the design.

The closest combine for the same purpose to the claimed invention according to the totality of features is a Ural-10 type combine (see Malevich N. A. “Mining machines and complexes”, Moscow, Nedra ed., 1980, pp. 229-232 , fig. 5.34). The general layout is similar to the Ural-20 combine, with the exception of distributing gearboxes. Instead of rotating flat planetary drills on the transfer gearboxes, rotor drills are installed in the form of brackets mounted on the housing with cutters directed towards the bottom. The use of rigidly fixed bumps, rotating together with distributing gearboxes at a low speed, eliminates ore crushing, improves the granulometric composition of broken ore - reduces the yield of fine fractions and simplifies the design.

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 with this combine it is impossible to go through workings with a height of more than 3 meters (see Malevich N. A. “Mining machines and complexes”, Moscow, ed. Nedra, 1980, p. 229, table 5.4). An increase in the diameter of the central bores with the wiring of the cutting discs to the required cross section significantly increases the resistance to the movement of the combine during sinking, and the chassis does not provide the necessary pressure forces without a significant increase in the mass of the combine, while at the same time maintaining a small diameter of the central bores and increasing the cross-section of the mine by increasing the diameter cutting discs leads to an increase in the power consumption of the drive of the cutting discs and, as a consequence, a rise in the cost of the design and increased energy consumption. In addition, a significant departure of the transfer gearbox due to the use of adjustable handles impairs maneuverability when the combine is moving downhill.

The task of the invention is to expand the functionality and improve the performance of the combine. The specified technical result during the implementation of the invention is achieved by the fact that in the inventive combine on the intermediate shafts of the transfer gearboxes additional cutting discs are installed with the offset of the cutting plane from the cutting plane of the main cutting discs and partial overlapping of the discs with each other, and the axes of the main and additional cutting discs are in the same plane perpendicular to the face, and the main cutting discs are as close as possible to the berm organ.

The diameters of the main disks and the central borehole are not increased, and the remaining pillar between them is processed with additional small-diameter cutting disks, due to which the energy consumption of the combine does not change significantly. In addition, the optimal location of the axes of the disks was chosen in the same plane, since the displacement of the axis of the additional disks from the plane towards the combine increases the diameter of the central bore, i.e. increases resistance during sinking, and shifting the axis toward the bottom increases the area that additional disks need to handle and, as a result, causes an increase in energy consumption.

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:

- additional cutting discs are installed on the intermediate shafts of the transfer gearboxes with a displacement of the cutting plane from the cutting plane of the main cutting discs and partial overlapping of the discs with each other, the axes of the main and additional cutting discs being in the same plane;

- The main cutting discs are as close as possible to the Berm organ.

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:

- additional cutting discs are installed on the intermediate shafts of the transfer gearboxes with a displacement of the cutting plane from the cutting plane of the main cutting discs and partial overlapping of the discs with each other, the axes of the main and additional cutting discs being in the same plane;

- The main cutting discs are as close as possible to the Berm organ;

solves the task of expanding the functionality 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, as it allows you to expand the functionality 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:

- additional cutting discs are installed on the intermediate shafts of the transfer gearboxes with a displacement of the cutting plane from the cutting plane of the main cutting discs and partial overlapping of the discs with each other, the axes of the main and additional cutting discs being in the same plane; such a technical solution expands the functionality of the combine and improves performance by increasing the cross-section of the output, while the diameters of the main disks and the diameter of the central bore are not increased, additional cutting disks of a minimum diameter process the bottom zone remaining between the main disk and the central bore;

- The main cutting discs are as close as possible to the Berm organ; such a technical solution improves operational performance by reducing the departure of the transfer gear and improving the maneuverability of the combine.

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

The drawings show:

figure 1 is a General view of the harvester (side view);

figure 2 is a view of the transfer gear (front view);

figure 3 is a view of the transfer gear with the shape of the face (side view).

The tunneling and harvesting combine (Fig. 1) contains a running gear 1, a Berm body 2, an upper baffle device 3, a conveyor 4 and a planetary-disk actuating body 5, including a portable rotation gearbox 6, two actuator gearboxes 7 and two transfer gearboxes 8 ( 2, 3), consisting of a housing 9 with a central bore 10 and two arms 11 provided with intermediate 12 and output shafts 13, main cutting disks 14 are installed on the output shafts, additional cutting disks 15 are installed on the intermediate shafts 15. The main axes 14 and d additional 15 disks are located in one plane perpendicular to the face.

The harvester works as follows.

The harvester moves and is fed to the bottom of the chassis 1 (figure 1). The main disks 14 (figure 2, 3) of the executive body 5, making complex movements, process the main area of the face. The central thaw 10 processes the central part, and the additional disks 15 process the remaining small part of the face between the main disks 14 and the central thaw 10. The portable rotation reducer 6 provides slow rotation of the transfer gears 8, the actuator gear 7 through the handles 11 of the transfer gears 8 rotate the main 14 and additional disks 15. The upper fender 3 forms the roof of the mine, the berm organ 2 of the wall and the soil of the mine.

The destroyed rock mass is loaded by a berm body 2 onto the central scraper conveyor 4. In the rear of the combine, the conveyor 4 is unloaded onto vehicles installed behind the combine.

In the proposed combine due to the installation on the intermediate shafts of the transfer gearboxes of additional cutting disks with a displacement of the cutting plane from the cutting plane of the main cutting disks and partial overlapping of the disks with each other, the axes of the main and additional cutting disks being in the same plane perpendicular to the bottom and the maximum approximation of the main cutting discs to the Berm body expand the functionality of the harvester and increase its performance.

Claims (1)

A roadheader, comprising a running gear, a berm body, a top breaker, a conveyor, and a planetary-disk actuator, including a portable rotation gearbox, two executive gearboxes, and two transfer gearboxes, consisting of a housing with a central bore and two handles equipped with intermediate and output shafts, the main cutting discs are installed on the output shafts, characterized in that additional cutting discs are installed on the intermediate shafts of the transfer gearboxes with shifting the cutting plane from the cutting plane of the main cutting discs and partially overlapping the discs with each other, the axes of the main and additional cutting discs being in the same plane perpendicular to the face, and the main cutting discs as close as possible to the Berm organ.

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