Rotary drilling rig controlling system based on overall power match

A technology of rotary drilling rig and control system, which is applied in engine control, mechanical equipment, machine/engine, etc., and can solve the problems of low engine fuel efficiency, waste of energy, and inability to fully utilize engine output power, etc.

Inactive Publication Date: 2016-01-06
CHANGAN UNIV
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Problems solved by technology

[0003] However, during the construction of the rotary drilling rig, due to the complex geological conditions and frequent changes in the load torque, the fuel efficiency of the engine is not high, and the hydraulic system cannot make full use of the output power of the engine.
[0004] The resulting power matching loss of the rotary drilling rig will not only waste energy, but also reduce the service life of the equipment

Method used

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  • Rotary drilling rig controlling system based on overall power match

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] An embodiment of the present invention provides a rotary drilling rig control system based on global power matching, the rotary drilling rig control system includes a drilling tool, the drilling tool acts on a load, a drill pipe connected to the drilling tool, and the A power head connected to the drill pipe, a hydraulic drive system connected with the power head, the hydraulic drive system includes a hydraulic motor connected with the power head, a hydr...

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Abstract

The invention belongs to the field of engineering machines and discloses a rotary drilling rig controlling system based on overall power match. The rotary drilling rig controlling system comprises a drilling tool, a drilling rod connected with the drilling tool, a power head connected with the drilling rod and a hydraulic driving system connected with the power head. The hydraulic driving system comprises a hydraulic motor connected with the power head, a hydraulic valve connected with the hydraulic motor, a hydraulic pump connected with the hydraulic valve and an engine connected with the hydraulic pump. The rotary drilling rig controlling system further comprises a pressure sensor connected with the hydraulic pump, a rotating speed sensor connected with the engine, an accelerator position sensor connected with an accelerator of the engine, an accelerator position controller connected with the accelerator position sensor and a rotating speed controller connected with the engine, the rotating speed sensor, the pressure sensor and the accelerator position sensor.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a control system for a rotary drilling rig based on global power matching. Background technique [0002] Rotary drilling rigs can complete drilling operations in the foundation construction of various buildings. It has many advantages such as large output torque, fast drilling speed, flexible and good operation, high hole quality, and convenient matching with various drilling tools. Whether it is clay soil or sandy soil, artificial backfill soil or working environment containing pebbles and gravels, it can be well matched. [0003] However, during the construction of the rotary drilling rig, due to the complex geological conditions and frequent changes in the load torque, the fuel efficiency of the engine is not high, and the hydraulic system cannot make full use of the output power of the engine. [0004] The resulting power matching loss of the rotary drilling rig will n...

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Application Information

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IPC IPC(8): F02D29/04F02D29/00
Inventor 惠记庄张泽宇武琳琳雷景媛郑恒玉
Owner CHANGAN UNIV
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