Tunnelling combine

FIELD: mining.

SUBSTANCE: tunnelling combine is proposed, comprising a cutting element, hydromotors of a movement mechanism, controlled by a hydraulic distributor, and outriggers kinematically connected to hydraulic cylinders equipped with hydraulic locks and controlled by a separate hydraulic distributor. Besides, the tunnelling combine additionally comprises an "or" valve, one inlet of which is connected to one of manifolds of hydromotors of the movement mechanism, and the other one is connected with their second manifold, and a check valve, the under-valve cavity of which is connected to the outlet of the "or" valve, and the above-valve cavity is connected via the hydraulic locks of hydraulic cylinders with their stem cavities. Besides, in the neutral position of the separate hydraulic distributor of hydraulic cylinders control, their piston cavities are connected with a drain manifold via hydraulic locks.

EFFECT: expansion of capabilities of tunnelling combine control and higher safety.

2 dwg

 

The invention relates to the field of mining, namely to tunneling processor.

Known continuous miner, which includes a cutting body and a transfer mechanism (Manual mechanics coal mine / A. I. Parkhomenko, V. Ostapenko, IM Mitko, etc. M.: Nedra, 1985. - s).

The disadvantage of this harvester is the lack of outriggers (additional support) for spreading the soil excavation. This reduces the resistance of the combine, especially during the destruction of slaughter.

The closest technical solution to meet the technical essence is a continuous miner, described in the source "heading machines KP, KP-01. Manual KRA" (http://www.twirpx.com/file/229010). General view of the harvester shown in RIS, hydraulic diagram (RIS) described p.82-92. This technical solution adopted for the prototype. Harvester belongs to the class of cyclic, has a cutting body, the transfer mechanism with motors controlled by the valve, informing them of the command "move forward" or "move backward" through the appropriate line, outriggers, kinematically connected to the hydraulic cylinders with hydraulic locks and controlled by a separate valve. During the destruction of the face cutter body movement (track progress) sartopore is, and for greater stability of the harvester in the soil produce respirate outriggers located in the rear of the harvester and kinematically connected to the hydraulic cylinders controlled by the valve. After completion of treatment (destruction) of the face contour generation hydraulic outriggers reduced, the outriggers are detached from the soil and pass into non-operating position. Included with the motors of the transfer mechanism (crawler). For this purpose, the valve control motors is in the position corresponding to the machine travels forward, there is a notch crossbar array. After that, the motors are disconnected from the pressure line by setting the valve in a neutral position, the transfer mechanism is now, the outriggers with hydraulic cylinders controlled by the valve, respirate in the soil and begins a new cycle. If you want to take the harvester from the bottom (for example, for a tool change, maintenance etc), the outriggers through cylinders are detached from the soil, and then to the motors of the mechanism for moving the valve command corresponding to the movement of the harvester ago. After moving combine the necessary distance, the motors are stopped, then the outriggers respirate in p is CWU.

The disadvantage of this harvester is that the reduction of the cylinders outriggers (translated them into non-operating position) is only performed regardless of the inclusion of hydraulic crawler to "move forward" or "move back", and the inclusion of hydraulic motors in any of these provisions does not result in separation of the outriggers from the soil, if they were pre-rasperry. That is, the inclusion of the hydraulic motors of the transfer mechanism to move the harvester forward or backward, and translation of the outriggers in the off position can not be executed simultaneously in one team and in one position of the valve. These operations are performed separately and different valves. It is desirable to have the option when you run the motors for movement of the harvester forward or backward at the same time with this team and in one position of the valve control motors to give command to the folding cylinders outriggers, if they were rasperry in the soil. This will improve the ease of operation combine to eliminate the human factor, and regardless of the driver of the combine harvester operations run motors and folding outriggers that will lead to the reduction of management operations combine and eliminate failure mechanisms outriggers. Otherwise, if before turning on the motors of the mechanism is aromasine, the outriggers were not transferred to non-operating position (due to errors or low qualification of the operator of the combine), you can move the machine in any direction mechanisms outriggers can be damaged. This danger, due to the specific kinematics of the mechanism is increased if the harvester is moving back and, moreover, if the supporting surface of the outrigger deep in the soil.

However, you must keep control mechanisms outriggers independently control the motors, for example, during maintenance and repair.

The purpose of the proposed technical solution is the possibility of combining operations management hydraulic motors and hydraulic cylinders outriggers with maintaining the ability to control the cylinders regardless of the control motors.

The technical result is the empowerment of management combine and increase safety.

This result is achieved in that a continuous miner, which includes a cutting body, the hydraulic motors of the transfer mechanism, controlled by the valve and United with him the two highways, outriggers, kinematically connected with the hydraulic cylinders with hydraulic locks and controlled by a separate valve, according to the utility model further comprises klapa is "or", one input of which is connected to one of the highways of the motors of the transfer mechanism, and the other is connected to the second line, and a check valve subvalvular cavity which is connected to the valve outlet or and nadupana cavity connected through hidrotambo cylinders with their rod cavities, while in the neutral position of the individual valve control their cylinders piston cavity through hidrotambo connected with the drain line.

The invention is illustrated by drawings, where figure 1 shows a continuous miner, figure 2 - hydraulic control circuit outriggers with hydraulic cylinders and hydraulic motors of the transfer mechanism.

The harvester includes a cutting body 1, the transfer mechanism (track progress) 2, the cylinders 3 with hydraulic locks 4, kinematically connected to the outriggers 5, the valve 6 controls the hydraulic cylinders 3, the motors 7 drive crawler-driven valve 8, the valve "or" 9 and the check valve 10. One inlet valve 9 is connected to the line 11, the other entrance from highway 12. Each of highways 11 and 12 may be pressurized or drain depending on one of the working positions of the valve 8, in which the working fluid from the pump 13 is supplied either in the cavity of the motor 7 for driving the harvester forward, or is their cavity to move backward (reverse). The check valve 10 of its subvalvular cavity is connected to the valve outlet or 9, and nallathanni cavity through hidrotambo 4 is connected with the rod cavities of the hydraulic cylinders 3. A separate valve 6 control cylinders are made so that in its neutral position the piston cavity of the cylinder 3 through hidrotambo 4 is connected with a drain line 14 through channel 15.

Continuous miner works in the following way. During the destruction slaughter combine its outriggers 5, located in the rear of the harvester with the right and left sides, rasperry in soil by hydraulic cylinders 3, which increases its stability. After completion of the cycle of destruction slaughter need to be taught the cutting body 1 in the array for the next cycle of destruction. To do this, using hydraulic motors 7 of the transfer mechanism must be enabled crawler course. The inclusion of the motors 7 is a valve 8. He switched from the neutral position to the position corresponding to the course of the harvester forward. The working fluid is supplied into the corresponding cavity of the hydraulic motors 7 from the pump 13 through line 11 or 12. Simultaneously, the fluid through the valve or 9, the check valve 10 and hidrotambo 4 enters the rod end of the cylinders 3, they are reduced and the outriggers 5 are transferred in the folded position. At the time of this operation, the valve 6 is in the neutral position and reduction of the hydraulic cylinders 3, the fluid from their piston cavity through hidrotambo 4 goes into the drain line through the channel 15 neutral positions of individual valve 6. If you want to take the harvester from the bottom, the valve 8 is placed in the appropriate position. While the working fluid is supplied to the motor 7 to move the harvester back and at the same time, through the valves 9, 10 and hidrotambo 4 again enters the rod end of the cylinders 3, which are reduced and transferred the outriggers 5 in the off position. Draining fluid from the piston cavities of the hydraulic cylinders 3 occurs through hidrotambo 4 and channel 15 in the neutral position of the valve 6.

Thus, when the movement of the harvester forward, and when the movement of the harvester back to folding outriggers 5 does not require a separate command, which eliminates the human factor, reduces the number of management operations combine and prevents possible damage to the mechanism an outrigger, if it was not composed before the beginning of movement of the harvester.

For independent control of hydraulic cylinders, including the maintenance, repair or testing of the functioning mechanisms of the outriggers without turn crawler motors, the valve 8 is in a neutral position, and to control the hydraulic cylinders used valve 6 controls the hydraulic cylinders 3. It has two working positions, in one of which the liquids is enters the rod end of the cylinders 3 for folding, and the other in their piston cavity for spreading out the outriggers 5 into the soil. When the flow of fluid in the rod end of the cylinders 3 check valve 10 prevents it from getting in the line 11 or 12 of the motors 7 and makes it impossible for them to run.

Thus, in the proposed tunneling processor provides the possibility of combining operations management hydraulic motors and hydraulic cylinders outriggers while maintaining the possibility of separate control of the hydraulic cylinders, which extends the control processor and improves health and safety.

Continuous miner, which includes a cutting body, the hydraulic motors of the transfer mechanism, controlled by the valve and United with him the two highways, outriggers, kinematically connected with the hydraulic cylinders with hydraulic locks and controlled by a separate valve, characterized in that it further comprises a valve or, one input of which is connected to one of the highways of the motors of the transfer mechanism, and the other is connected to the second line, and a check valve subvalvular cavity which is connected to the valve outlet or and nadupana cavity connected through hidrotambo cylinders with their rod cavities, while in the neutral position of the individual valve control their cylinders on Snowie cavity through hidrotambo connected with the drain line.



 

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