Quarry excavator

FIELD: mining industry.

SUBSTANCE: invention relates to device for excavating and transporting rock mass and it can be used for selective open-cast mining without preliminary ripping from complex structural deposits of horizontal and gentle dip. Proposed excavator includes running mechanism, boom with receiving conveyor, transfer and waste conveyors, working member, control hydraulic cylinders, namely, crows, turning and boom lifting ones, bracket-slider connected with crowd and turning hydraulic cylinders for displacement along guides on housing of crowd hydraulic cylinders, frame connecting housing of crowd hydraulic cylinders hinge-fastened on head of boom, and telescopic receiving conveyor arranged between head part of boom and working member. The latter is hinge-connected to bracket-slider and is made in form of shovel without rear wall and with working edge provided with shock and static teeth.

EFFECT: increased efficiency of opencast mining owing to use of explosionfree technology and provision of selective excavation of ore reducing losses and impoverishment.

2 cl, 3 dwg

 

The technical solution relates to mining, namely, devices for excavation and movement of the rock mass, and can be used for selective open-pit mining of minerals without their preliminary loosening of the compound structure deposits horizontal or gently sloping downs.

Known career excavator (see ed. St. USSR №302453, CL E 02 F 7/02, publ. in BI No. 15, 1971), including travel gear, receiving, transmission and conveyor conveyor and the working body, made in the form of a hinge mounted on the boom hollow wedge in the cavity which is built transporting mechanism, such as a plate conveyor.

A disadvantage of the known excavator is that the working body, made in the form of a hollow wedge, not even equipped with static teeth has a large size and therefore, in order to create a working edge specific efforts, sufficient for the introduction of a mountain range, it is necessary to have a large capacity and the weight of the car, and it reduces such technical indicators career excavator productivity and energy intensity of destruction. In addition, the step trajectory of movement of the working body, the resulting action on his large reactive forces of the face, causing dilution of the extracted mineral and its loss.

the closest to the technical essence and essential features is a career excavator (see auth. St. USSR №1099019, CL E 02 F 7/02, publ. in BI No. 23, 1984), including navigation equipment, rotary platform, telescopic boom, at the end of which is mounted the body of the truck with a built-in conveyor, a working body of continuous action, pivotally associated with the body of the truck through the connection node, the receiving conveyor and hydraulic control. The body of the truck on the telescopic boom is fixed, and the connection node of the working body continuous with the body of the truck is made in the form of a rotary two shoulders of the lever, rear shoulder which is pivotally connected by means of additional hydraulic control chassis of the truck and the front end with the working body continuous with the possibility of moving in the vertical plane with the nomination forward relative to the body of the truck.

The working body of the excavator, made in the form of a rotor, equipped with swings, makes using the rotary two shoulders of the lever and cylinder management limited periodic motion of an oscillatory nature in the vertical plane. This design of the working body is not effective in the destruction of rocks, and can only lead disassembly and loading previously well loosened rock mass. Therefore, the application of known mining excavator is in selective technologies where required layerwise separation of rock from the ore, is associated with large losses and dilution fossil.

The technical objective of the proposed solutions is to increase the effectiveness of open-pit mining of minerals through the use of nonexplosive technology and provide selective extraction of minerals, reducing its losses and dilution.

The problem is solved in that career excavator, comprising a driving mechanism, a shaft with that of the receiving conveyor, transfer and conveyor conveyors, working body and the hydraulic cylinders control the pressure, turning and lifting, according to the technical solution is provided with a bracket-slide connected with pressure and rotary cylinders can move along the guide rails on the hull pressure cylinders, a frame connecting the housings of the pressure cylinders, hinged to the head side of the boom and telescopic receiving conveyor. The working body pivotally attached to the bracket-slide and made in the form of shovels shovels without a back wall with a working edge, equipped with a shock and static teeth, and telescopic receiving conveyor located between the head part of the boom and a working body.

The presence of the bracket of the slide, through which the working body is resident to the head side of the boom, and pressure cylinders with guides provides rectilinear movement of the working body and, as a consequence, the layer separating rocks from minerals, allowing selective excavation, reduce the loss of minerals and ore. The working body, made in the form of shovels shovels having a protruding front part with the working edge, allows to increase the specific implementation effort, and also to eliminate the contact side of its walls with rock in the initial period of implementation, thereby reducing drag. The absence of a rear wall of the scoop shovel reduces the resistance to movement of the destroyed rocks on the receiving conveyor. Equipping the working edge of the scoop shovel shock and static teeth allows the destruction of rocks without pre-drilling and blasting loosening.

Because loading rocks is carried out simultaneously with the process of its destruction and the distance between the head part of the boom and a working body increases between the head part of the boom and a working body equipped with telescopic receiving conveyor.

Thus, the application of the proposed technical solution eliminates blasting and provides selective excavation of minerals, reducing Oteri and ore, increasing the efficiency of the process of destruction of rocks and productivity of the excavator.

It is advisable telescopic receiving conveyor to run in two vibrant, one of which is fixed to the specified frame and the other on the bracket-slide. The performance of the receiving conveyor is characterized by simple design (vibralert is a steel sheet with an attached vibrator), compactness and reliability.

The essence of the technical solution is illustrated by the example of a specific implementation and drawings, in which figure 1 shows a General view of the quarry excavator, the dashed line indicates the maximum upper position of the working body; figure 2 - section a-a in figure 1; figure 3 - a view B figure 1.

Career excavator (hereinafter excavator) contains a running mechanism 1 (Fig 1), a shaft 2 with the receiving conveyor (POS. not marked), the transfer conveyor 3, the hopper 4, conveyor conveyor 5, the working body 6 made in the form of shovels shovels without a back wall with a working edge, equipped with drums 7 and 8 static teeth (2, 3). The working body 6 by means of hinges 9, 10, rotary cylinders 11 and hinge 12 is attached to the bracket to slide 13. Thereto by means of hinges 14 are attached pressure cylinders 15. Section 16 of the pressure cylinders 15 are the guides, the example as the "swallow's tail" (figure 2), which moves the bracket slide 13. The pressure cylinders 15 by means of hinges 17, the rotary cylinders 18 and hinges 19, 20 attached to the head part of the boom 2, which is connected to the hydraulic cylinder 21 to move it in the vertical plane.

Between the boom 2 and the working body 6 has a telescopic receiving conveyor (POS. not marked)made in the form of two vibraint: vibrolance 22 (figure 2) fixed to the frame 23 of the connecting section 16 of the pressure cylinders 15 and vibrolance 24 - bracket-slide 13.

The excavator operates as follows.

Development of the face are layers in descending order. When the excavator to the bottom of the boom 2 by means of a hydraulic cylinder 21 is lifted to the maximum height, the pressure cylinders 15 are mounted in parallel with removable reservoir. The working body 6 using the rotary cylinder 11 is installed at the bottom so that the axis of the drum 7 and 8 static teeth formed with the plane of their movement angle of attack, close in value to 25÷30°and the cutting edges of these teeth 7, 8 touched bottom at a distance from the free surface equal to the thickness of the removable chip. Further included in the work of the pressure cylinders 15 which implement shovels shovel equipped with drum 7 and staticheskimi 8 teeth, in the slaughter begins the process of breaking rocks. Under the action of horizontal forces of the pressure cylinders 15 rock moves along the inclined front wall shovels, consistently arrives on vibrolance 22, 24 of the telescopic receiving conveyor and is then on the receiving conveyor boom 2, the transfer conveyor 3, the hopper 4 and, finally, on conveyor conveyor 5.

The working body 6 does work and idling, equal to the stroke of the pressure cylinder 15. After completion of the idle speed using the rotary cylinders 11 working body 6 is rotated, and the remaining therein rock poured on vibrolance 24. Next working body 6 is installed in the original position to develop the next layer.

The rotation of the working equipment of the excavator in the plan is development of a layer of rocks (horizontal or inclined), the entire width of zagadki. After testing a single layer lead working equipment excavator to its original position, is lowered by means of hydraulic cylinder 21 of the bolt 2, proceed to testing the underlying layer, etc. before the Foundation of the slaughter.

1. Mining excavator comprising driving mechanism, a shaft with that of the receiving conveyor, transfer and conveyor conveyors, work the body, hydraulic control pressure, swivel and under the mA arrows, characterized in that it is provided with a bracket-slide connected with pressure and rotary cylinders can move along the guide rails on the hull pressure cylinders, a frame connecting the housings of the pressure cylinders, hinged to the head side of the boom, telescopic receiving conveyor located between the head part of the boom and a working body, while working body pivotally attached to the bracket-slide and made in the form of shovels shovels without a back wall with a working edge, equipped with a shock and static teeth.

2. Career excavator according to claim 1, characterized in that the telescopic receiving conveyor is made in the form of two vibrant, one of which is fixed to the specified frame and the other on the bracket slider.



 

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Mining machine // 2061868
The invention relates to mining machines of the type spreaders, loaders, etc

Quarry excavator // 2296860

FIELD: mining industry.

SUBSTANCE: invention relates to device for excavating and transporting rock mass and it can be used for selective open-cast mining without preliminary ripping from complex structural deposits of horizontal and gentle dip. Proposed excavator includes running mechanism, boom with receiving conveyor, transfer and waste conveyors, working member, control hydraulic cylinders, namely, crows, turning and boom lifting ones, bracket-slider connected with crowd and turning hydraulic cylinders for displacement along guides on housing of crowd hydraulic cylinders, frame connecting housing of crowd hydraulic cylinders hinge-fastened on head of boom, and telescopic receiving conveyor arranged between head part of boom and working member. The latter is hinge-connected to bracket-slider and is made in form of shovel without rear wall and with working edge provided with shock and static teeth.

EFFECT: increased efficiency of opencast mining owing to use of explosionfree technology and provision of selective excavation of ore reducing losses and impoverishment.

2 cl, 3 dwg

FIELD: mining.

SUBSTANCE: method involves arrangement of a processing device on the position of the processing device relative to an ore deposit, arrangement of the first moving conveyor to receive the supplied ore lumps separated as to size at the inlet point located in the section of the first moving conveyor capable of transporting the ore lumps separated as to size from the inlet point to the unloading end of the first moving conveyor; arrangement of the second moving conveyor to receive ore lumps separated as to size from the unloading end of the first moving conveyor at the transshipment point chosen from a variety of transshipment points provided in the section of the second moving conveyor and transportation of ore lumps separated as to size from the transshipment point to the processing device; besides, the first and the second moving conveyors have a working angle between their sections. Movement at least of one of the first and the second moving conveyors for changing at least one of the working angle and the transshipment point; with that, movement at least of one of the first and the second moving conveyors includes the following: (a) at the first type of movement the working angle is changed between the first and the second moving conveyors so that essentially constant transshipment point is maintained, (b) at the second type of movement the transshipment point is changed so that essentially constant working angle is maintained between the first and the second moving conveyors, (c) at the third type of movement the transshipment point and the specified working angle is changed.

EFFECT: subsequent development of ore deposit sections.

14 cl, 13 dwg

FIELD: machine building.

SUBSTANCE: conveyor device has head unit and tail unit (3), at that the head unit is divided to mobile head drum unit (2), and fixed transfer unit (1). Determined by development change of distance of the belt conveyor between the tail unit and transfer unit is compensated in accordance with the invention by change of distance between the mobile head drum unit and transfer unit.

EFFECT: coordination of the conveyor unit with depth of development without cut of the conveyor belt.

5 cl, 2 dwg

FIELD: mining.

SUBSTANCE: invention relates to a complex for open excavation of deep pits, in particular kimberlite pipes. Mining-transportation complex contains a fixed frame (1), movable frame (2), boom (3), rotor wheel (4) and monorail path (5). Fixed frame (1) is made in form of an arch, ends of which are rigidly fixed on the day surface soil (6). Mobile frame (2) is made in form of an arch, which in the middle of its length by means of suspension assembly (8) is hinged to fixed frame (1) to turn relative to fixed frame (1). At the ends of mobile frame (2) rests on two trolleys (9). Trolleys (9) are installed with possibility of movement on horizontally located monorail path (5). In the plan, monorail path (5) has the shape of circle. Boom (3) is arranged vertically. One end of boom (3) is connected with movable frame (2) with possibility of movement on guides (10) of movable frame (2). Rotor wheel (4) with buckets (11) are fixed at the other end of boom (3). Fixed (1) and movable (2) frames are equipped with belt conveyors, and boom (3) and suspension unit (8)-screw conveyors.

EFFECT: technical result is ore excavation without explosion from deep open pits and its transportation to the level of day soil without use of motor transport.

1 cl, 6 dwg

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