Double-oil-cylinder feeding system of blast hole drilling machine

Abstract

The invention discloses a double-oil-cylinder feeding system of a blast hole drilling machine, and belongs to the technical field of mining machinery. The double-oil-cylinder feeding system comprises two feeding oil cylinders, a power head and a movable pulley block, wherein the two feeding oil cylinders are arranged on a tower device in parallel and are supplied with oil by the same hydraulic pump; the power head is pulled by a steel wire rope; the steel wire rope bypasses the movable pulley block and is fixed on the tower device; and the feeding oil cylinders are used for driving the movable pulley block to move, so that the power head can move up and down. The double-oil-cylinder feeding system of the blast hole drilling machine overcomes the inconvenience caused by insufficient power of the existing feeding system of the blast hole drilling machine. Two sets of independent oil cylinder feeding systems are arranged on the two sides of the tower device, the two sets of hydraulic oil cylinders act simultaneously and are in a parallel state, the pressure and the flow are the same, the feeding oil cylinders have the same load, synchronous operation can be realized, the two sides of the power head are stressed simultaneously and are stressed in a balanced mode, and the force of the feeding oil cylinders is converted into the downward pressure and the upward lifting of the power head during working.

Description

technical field [0001] The invention belongs to the technical field of mining machinery, and more specifically relates to a double oil cylinder feeding system of a blast hole drilling rig. Background technique [0002] Large-scale blasthole drilling rigs are generally used in drilling operations in open-pit mines. For large-scale open-pit mines, especially open-pit metal mines, there are higher requirements for drilling diameter, drilling depth, and drilling pressure. Existing drilling rigs use a single feed cylinder, which cannot meet the requirements of some mining sites in terms of drilling diameter, drilling depth, and drilling pressure. [0003] In view of the poor drilling ability of existing blasthole drilling rigs that cannot meet the working requirements of mining areas, relevant technical solutions have been disclosed in the prior art, such as patent application number: 2017105404630, application date: July 5, 2017, invention and creation The name is: a feed syste...

AI Technical Summary

Problems solved by technology

Existing drilling rigs use a single feed cylinder, which cannot meet the requirements of some mining sites in terms of drilling diameter, drilling depth, and drilling pressure

[0003] In view of the poor drilling ability of existing blasthole drilling rigs that cannot meet the working requirements of mining areas, relevant technical solutions have been disclosed in the prior art, such as patent application number: 2017105404630, application date: July 5, 2017, invention and creation The name is: a feed system for a large mining drilling rig. The feed system disclosed in this application is set on the tower and can move up and down along the tower. The bottom of the feed system is provided with a driving sprocket, a motor and a The reduction gear driven by the motor, the output end of the reduction gear is connected with the driving sprocket, the top is provided with a passive sprocket, the outer meshing sleeve of the driving sprocket and the passive sprocket is provided with a chain, and one of the chains is fixed on the tower. The other chain is fixed with propulsion equipment, and the reduction gear outputs the power of the motor to the driving sprocket and transmits it to the passive sprocket, thus driving the entire feeding system to move up and down between the top and bottom of the tower

[0004] This scheme uses a hydraulic motor and a reduction box to generate adjustable torque, and converts the torque into propulsion by the sprocket and chain. Loud noise, prone to gear vibration, large hydraulic motor, inconvenient installation, limited feed power

[0005] In summary, how to overcome the inconvenience caused by the insufficient power of the feed system of the existing blasthole drilling rig is a technical problem that needs to be solved urgently in the prior art

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