Development method of deposit with complex structure and working element for method's implementation

FIELD: mining.

SUBSTANCE: in order to enlarge the range of simultaneous processing and versions of control of a cutting force in the processing zone, formation of destruction zones is performed considering strength characteristics of rock as to width of the processed surface at variation of functional and technological parameters and their rational combination under conditions of selective development of deposits with complex structures. Strength characteristics of rock are fixed by mine rock strength recording sensors connected through a system block to a control system of operation of hydraulic cylinders, and drum balance is provided by distributed offset of hydraulic cylinders. Pressure of working liquid in piston cavities of the hydraulic cylinders is designed for a force required for rotation of turning levers.

EFFECT: increasing productivity, improving reliability and enlarging technological efficiency of destruction of rocks of different strength and coherence degree by controlling a cutting force in a zone of processing and formation in a surface layer of the processed massif of destruction zones considering strength characteristics of rock at selective development of deposits with complex structures by means of open-pit surface miners.

2 cl, 6 dwg

 

The invention relates to the mining industry and can be used for selective mining of complex-structured fields using surface miners.

Known Executive bodies of mining machines is rigidly fixed to the body of the drum cutting tools to ensure the destruction of the breed due to the placement of instruments on the spiral of Archimedes [1] or reverse rotation of the drum [2].

Design features such devices do not provide optimal performance and energy consumption of the process.

Known Executive body of the mining machine [3], with enclosure, holes which adjustably mounted tools that interact with the mechanism to move them placed in the cavity of the housing. The mechanism for moving the tool is made in the form of a crankshaft with connecting rods, which are kinematically connected with tools to move them along the radius in a vertical plane perpendicular to the axis of rotation of the body.

This device has a low reliability, high energy consumption and does not provide the selectivity of the compound structure development fields.

The closest in technical essence is reversing the working body of the harvester, including the drum to the hub, the ring and the blades with the cutting tools is a COP, installed with the ability to interact with fists, located on the drum, and connected to the ring by the axes that are installed in the apertures coaxially made in the blades and the ring.

Due to the fact that the mechanisms for moving the cutting tools are located on the outer surface of the working body and may be subject to external influence - shock, dust, decreases the reliability of the device. In addition, reverse drum amplifies the alternating load on the working mechanisms of the body.

The technical result consists in increasing the performance, reliability, and expansion of the technological efficiency of destruction of rocks of varying degrees of strength and connectivity through regulation of the cutting forces in the area of processing and forming in the surface layer of the processed array of fracture zones taking into account the strength characteristics of rock under the selective development of compound structure fields using surface miners.

The technical result is achieved due to the fact that in the method of the compound structure development field, including the creation of desired stress concentration by regulating the cutting forces in the treatment area and the formation of a surface layer of the processed array of fracture zones with the help of cutting tools servant is what the body of the harvester, depending on the strength characteristics of rocks, to extend the range of simultaneous processing and management options of cutting forces in the treatment area of the formation of fracture zones is carried out taking into account the strength characteristics of the breed across the width of the treated surface when changing the functional parameters of the positioning of the cutting tools in each row independently from each other, as well as technological parameters - pressure working fluid in the piston cavities of the cylinders, the speed of rotation of the housing of the working body and the rate of advance of the harvester, when their rational combination under conditions of selective mining complex-structured deposits, while the strength characteristics of the breed are recorded by sensors recording the strength of rocks connected through the system unit with the control system of the hydraulic cylinders, and the balance of the drum is provided a distributed displacement of the cylinders, and the pressure of the working fluid in the piston cavities of the cylinders is calculated on the effort required to rotate the rotary levers.

The working body for implementing the method, comprising a housing with a movably mounted disks rigidly mounted on them cutting tools are moved relative to the swivel associated with building mechanisms for moving the cutting in which the tools through interaction with discs equipped with sensors recording the strength of rocks, mounted on the frame of the harvester and connected to the system unit connected to the control system of the hydraulic cylinders, the control system of the rigid retainers, the system controlling the speed of rotation of the drum and to control speed of movement of the harvester, with mechanisms for moving the cutting tools mounted in the housing cavity and is provided with rigid clamps, and discs with cutting tools equipped with an adjustable levers and installed in the slots on the chassis for rotation relative to the swivel associated with lugs mounted on the chassis, this positioning of the cutting tools in each row is independent from each other, and are controlled by hydraulic cylinders mechanisms for moving the cutting tools made in the form of links pivotally interconnected, and swing arms kinematically connected by means of a swivel with the links of the mechanism for moving the cutting tools, to ensure the balance of the dryer cylinders in each adjacent row offset set relative to each other around the circumference defined by the formula:

Λ=360/n,

where n is the number of adjacent cylinders mechanism is to move the cutting tools, with the system working fluid to the hydraulic cylinders and systems management work hard retainers connected with the rotary connection-support, and the pressure of the working fluid in the piston cavities of the cylinders is calculated on the effort required to rotate the rotary levers.

The possibility of the formation of the desired sequence of executable actions proposed tools can solve the task, determines the novelty, industrial applicability and inventive step of the development.

The working body for implementing the method of the compound structure development of the field shown on the drawings.

In Fig.1 - General view of the quarry miner when working compound structure field; Fig.2 - working body of the combine, section a-a in Fig.1; Fig.3 - section b-B in Fig.2, the first position of working tools; Fig.4 - section b-B in Fig.2, the second position working tools; Fig.5 - section b-b of Fig.2 shows the distributed displacement of the cylinders; Fig.6 is a block diagram of the control of work authority for implementing the method of the compound structure development fields.

The working body 1 for implementing the method includes a housing 2 with a movably mounted disks 3 and rigidly attached to them cutting tools 4, 5, moved relative to the hinge connected to the I 6. Associated with case 2 mechanisms 7 for moving the cutting tools 4, 5 communicate with the disks 3. Sensors 8 reception strength of rock mounted on the frame 9 of the harvester 10. Mechanisms 7 for moving the cutting tools 4, 5 provided with hydraulic cylinders 11 and installed in the cavity 12 of the housing 2. Disks 3 with the cutting tools 4, 5 is equipped with an adjustable levers 13 and inserted in the grooves 14 of the housing 2 to rotate relative to the swivel 6. Swivel 6 is connected with the lugs 15, mounted on the chassis 2. The positioning of the cutting tools 4, 5 in each row 16 is carried out independently from each other. Mechanisms 7 for moving the cutting tools 4, 5 made in the form of links 17, the hinge 18 interconnected, and operated by hydraulic cylinders 11. Swing arms 13 kinematically connected by means of a swivel connection 18 with the links 17 of the mechanism 7 for moving the cutting tools 4, 5. To ensure steadiness of the drum 19 of the cylinders 11 in each adjacent row 16 is installed relative to each other around the circumference 20 offset 21, defined by the formula:

Λ=360/n,

where n is the number of adjacent cylinders 11 mechanism 7 for moving the cutting tools 4, 5. The cutting tool 5 has a thrust face 22 to resist cutting force at p is the bot cutting tool 4. The first links 23 mechanisms 7 are equipped with hard tabs 24 that are provided when the operation of the cutting tools 5 for removing the load on the rod 25 of the hydraulic cylinders 11. System 26 supply of operating fluid to the hydraulic cylinders 11 and system 27 controls work hard retainers 24 are connected with the rotary connection-pillar 28. Rotary connection-a support 28 allows free rotation of the drum 19, allowing systems 26, 27 remain stationary. The pressure of the working fluid in the piston cavities 29 of the cylinders 11 is calculated on the effort required to rotate the swivel levers 13. System 26 is connected with the control system 30 of the hydraulic cylinders 11. The sensors 8 are connected to the system unit 31, which is connected to the control system 30 of the hydraulic cylinders 11, the control system 27 work hard retainers 24, system 32 to control the rate of rotation of the drum 19 and the control system 33 the speed of travel of the harvester 10.

Method development compound structure fields using the working body is implemented as follows.

As the harvester 10 is installed on the frame 9 of the harvester 10 sensors 8 reception strength rocks the signals on the system unit 31. After processing the received information to the control system 30 by operation of the cylinders 11 is supplied to the signal is L. Using system 26 of the working fluid occurs actuation of the hydraulic cylinders 11 and cutting tools 4, 5 are installed in the correct position, moving relative to the swivel with 6 eyelets 15. When configuring a first position for testing high-strength section associated with the housing 2 and mounted in the cavity 12 of the housing 2 mechanisms 7 interact by means of links 17, the hinge 18 is connected with the swing arm 13 disk 3 installed in the slots 14. The cutting tool 5 has a thrust face 22 to resist the cutting forces during operation of the cutting tool 4. The pressure of the working fluid in the piston cavities 29 of the cylinders 11 is calculated on the effort required to rotate the swivel levers 13. The rod 25 of the hydraulic cylinders 11 are in their extreme position from the cylinders 11. Configure rational technological parameters - pressure working fluid in the piston cavities 29 of the cylinders 11, the speed of rotation of the housing 2 of the working body 1 and the rate of advance of the harvester 10. From the system unit 31 sends the signal to the system 32 controls the speed of rotation of the drum 19 and the control system 33 the speed of travel of the harvester 10. In areas with lower strength is the actuation of the hydraulic cylinders 11 and the rod 25 of the hydraulic cylinders 11 are in their very the near position with respect to the cylinders 11. The first links 23 mechanisms 7 are equipped with rigid clamps 24, which is rigidly fix the position of the cutting tools 5 for removing the load on the rod 25 of the cylinder 11 during operation. System unit 31 sends a signal to the control system 27 work hard clamps 24, which fix the desired position of the swivel lever 13 for removing the load from the rod 25 of the hydraulic cylinders 11. Rotary connection-a support 28 allows free rotation of the drum 19, allowing systems 26, 27 remain stationary. There is a destruction of the surface layer deposits. Harvester works in layers sturdy breed with a layer less strong and more ductile rocks. The creation of desired stress concentration by regulating the cutting forces in the treatment area and the formation of a surface layer of the processed array of fracture zones with the help of cutting tools 4, 5 of the working body 1 of the harvester 10 is carried out according to the width of the processed surface, depending on the strength characteristics of rocks, which can vary considerably. The pressure of the working fluid in the piston cavities 29 of the cylinders 11 is calculated on the effort required to rotate the swivel levers 13.

To ensure steadiness of the drum 19 of the cylinders 11 in each adjacent row 16 installation the Lena relative to each other around the circumference 20 offset 21, defined by the formula:

Λ=360/n,

where n is the number of adjacent cylinders 11 mechanism 7 for moving the cutting tools 4, 5.

Is a combined treatment of high strength and less rugged areas of the field.

The method includes the sequential development of different rocks composing the compound structure of the field. Rocks can vary significantly from each other on the physico-mechanical properties and for their effective development requires simultaneous independent adjustment of the cutting tools. Expansion of the range of simultaneous processing and management options of cutting forces in the treatment area provides increased performance, reliability, and expansion of the technological efficiency of destruction of rocks of varying degrees of strength and connectivity.

Sources of information

1. USSR author's certificate No. 382814. The Executive body of the coal combine / Bolman L. C., Brilling Century. And., Nematov B. C., Chefranov C. C., Miller, K. O., Eremin, S., Janeway C. A., publ. 23.05.1973. Bull. No. 23.

2. USSR author's certificate No. 441403. The Executive body of the coal combine / Stankus C. M. and others - publ. 30.08.1974. Bull. No. 32.

3. USSR author's certificate No. 1149006. The Executive body of the mining machine / Brenner C. A., Sismano L., and others - publ. 07.04.85. Bull. No. 13.

2. Author svidetel is in no 1204727 Reversing the working body of the harvester / Bot Century A., Klinowski A. A., Ant VP, Litovchenko, N. A. - publ. 15.01.1986. Bull. No. 2.

1. Method development compound structure of the field, including the creation of desired stress concentration by regulating the cutting forces in the treatment area and the formation of a surface layer of the processed array of fracture zones with the help of cutting tools working body of the harvester, depending on the strength characteristics of rocks, characterized in that to extend the range of simultaneous processing and management options of cutting forces in the treatment area of the formation of fracture zones is carried out taking into account the strength characteristics of the breed across the width of the treated surface when changing the functional parameters of the positioning of the cutting tools in each row independently from each other, as well as technological parameters - pressure working fluid in the piston cavities of the cylinders, the speed of rotation of the housing of the working body and the rate of advance of the harvester, when their rational combination under conditions of selective mining complex-structured deposits, while the strength characteristics of the breed are recorded by sensors recording the strength of rocks connected through the system unit with the control system of the hydraulic cylinders, and the balance drum both the realised distributed displacement of the cylinders, moreover, the pressure of the working fluid in the piston cavities of the cylinders is calculated on the effort required to rotate the rotary levers.

2. The working body for implementing the method, comprising a housing with a movably mounted disks rigidly mounted on them cutting tools are moved relative to the swivel associated with building mechanisms for moving the cutting tools through interaction with the disk, characterized in that it is equipped with sensors recording the strength of rocks, mounted on the frame of the harvester and connected to the system unit connected to the control system of the hydraulic cylinders, the control system of the rigid retainers, the system controlling the speed of rotation of the drum and to control speed of movement of the harvester, while the mechanisms for moving the cutting tools mounted in the housing cavity and is provided with rigid clamps, and discs with cutting tools equipped with an adjustable levers and installed in the slots on the chassis for rotation relative to the swivel associated with the eyelets mounted on the housing, and the positioning of the cutting tools in each row is independent from each other, and are controlled by hydraulic cylinders mechanismis move the cutting tools made in the form of links, connected with hinges and swing arms kinematically connected by means of a swivel with the links of the mechanism for moving the cutting tools, to ensure the balance of the dryer cylinders in each adjacent row offset set relative to each other around the circumference defined by the formula:
Λ=360/n
where n is the number of adjacent cylinders mechanism for moving the cutting tools, and system working fluid to the hydraulic cylinders and systems management work hard retainers connected with the rotary connection-support, and the pressure of the working fluid in the piston cavities of the cylinders is calculated on the effort required to rotate the rotary levers.



 

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2 dwg

FIELD: mining.

SUBSTANCE: facility for milling and/or drilling rock or similar materials consists of spindle drum assembled on support and intended to rotate around axis; several rotating cutter spindles are installed in drum eccentric to axis of drum. On their ends projecting out of the spindle drum the cutter spindles bear working tools. At least two of cutter spindles are actuated from a common reducing drive, which has driven tooth gears stationary arranged on the cutter spindles and a common drive element interacting with driven tooth gears. Also the drive element and the spindle drum are assembled so as to provide their rotation relative to each other.

EFFECT: processing hard materials at high efficiency of milling, increased operation life of tools, high operational reliability and compactness.

55 cl, 22 dwg

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