Drilling rig drawworks brake device and control method combining disc brake and motor hovering
A drilling rig winch and braking device technology, which is applied in the control of the drilling rig winch braking device, and in the field of drilling rig winch braking device, can solve the problems that the main motor stop disc brake cannot effectively brake, slip drilling, etc., so as to improve maintainability and safety Effect
Active Publication Date: 2020-09-22
BAOJI PETROLEUM MASCH CO LTD +2
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Problems solved by technology
[0004] The purpose of the present invention is to provide a drilling rig drawworks braking device that integrates disc brakes and motor hovering, aiming at the failure of the disc brake actuator of the drilling rig winch when the main motor is stopped and the disc brakes cannot effectively brake during the braking action. question
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0025] Such as figure 1 As shown, it is a schematic diagram of the system of the drilling rig drawworks braking device combined with the disc brake and the motor hovering of the present invention. 3 is connected to the main motor 4, the main motor 4 is connected to the electric shifter 11 of the reduction box through the first coupling 9, and the electric shifter 11 of the reduction box is connected to the drum 12 through the second coupling 10, and the two drums 12 Each end is provided with a disc brake mechanism, and each disc brake mechanism is connected with the disc brake liquid gas control valve group 7. A drum encoder 1 is installed at the shaft end of the drum 12, and the PLC controller 2 is also connected with the drum encoder 1 and the disc brake respectively. The hydraulic and gas control valve group 7, the disc brake safety tongs p...
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The invention discloses a disc brake braking and motor suspension fused driller winch brake device, and further discloses a control method of the disc brake braking and motor suspension fused drillerwinch brake device. The control method includes that the judgement that if braking is needed for a logical interlock is performed by combining current status of all equipment and actual status of technological parameters; when a PLC (programmable logic controller) judges out that a braking condition exists, a disc brake liquid-gas control valve unit performs braking action; then, the PLC detects if current feedback pressure of disc brake executing mechanism safety tongs and current feedback pressure of disc brake executing mechanism work tongs are in a normal range, and when the current feedback pressure of the disc brake executing mechanism safety tongs and the current feedback pressure of the disc brake executing mechanism work tongs are both in the normal range, the status that a disc brake is thrown into normal work can be confirmed, an a main motor stops running, and if not, the main motor continue to keep a suspension state under starting status, and the PLC controller sends a disc brake abnormity warning signal to a driller operation display screen. The disc brake braking and motor suspension fused driller winch brake device and the control method thereof overcome the disadvantage that the main motor cannot automatically implement emergency start for holding a drill stem in suspension mode under fault status of the disc brake, and greatly improve operation safety of a driller.
Description
technical field [0001] The invention belongs to the technical field of mechanical equipment control, and in particular relates to a drilling rig winch braking device integrated with disc brakes and motor hovering, and also relates to a control method of the above-mentioned drilling rig winch braking device integrated with disc brakes and motor hovering. Background technique [0002] At present, oil drilling rigs are equipped with winch disc brake devices to realize the braking of the drilling rig floating device at relevant positions; PLC automatic control technology can also realize real-time monitoring of the traveling height of the floating device in the derrick; The variable frequency drive unit of the moving module can also realize the hovering function of "zero speed and high torque" (that is, the speed is zero, and the heavy load is suspended). [0003] However, the current braking system of drilling rigs has not realized the effective integration of disc brakes and h...
Claims
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IPC IPC(8): B66D1/48B66D1/54B66D5/30
CPCB66D1/485B66D1/54B66D5/30
Inventor 于兴军张斌魏培静杨双业王飞田凤仙
Owner BAOJI PETROLEUM MASCH CO LTD