Protection system of hoisting mechanism of rotary drilling rig
A technology of rotary drilling rig and winch mechanism, which is applied in the direction of winch device and clockwork mechanism, etc. It can solve the damage of the main winch motor, the main winch falling rod, the failure and damage of the friction plate of the main winch reducer, etc. problems, to achieve the effect of ensuring safety and stability
Active Publication Date: 2015-01-07
XUZHOU XUGONG FOUND CONSTR MACHINERY
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[0020] The present invention will be further described below in conjunction with accompanying drawing.
[0021] Such as Figure 1 to Figure 2 As shown, a hoisting mechanism protection system for a rotary drilling rig includes a controller 4, a power supply 2, a weighing pin sensor 3, and a pressurized overflow solenoid valve 5. The negative pole of the power supply 2 is grounded through the power switch 1, and the The positive pole of the power supply 2 is connected to the positive pole of the weighing pin sensor 3 and the controller 4 respectively, wherein the negative pole of the controller 4 and the weighing pin sensor 3 are all grounded, and the CAN of the weighing pin sensor 3 and the controller 4 Interface connection, the output pin of the controller 4 is connected to one end of the pressurized overflow solenoid valve 5, the other end of the pressurized overflow solenoid valve 5 is grounded, and the P port of the pressurized overflow valve 5 is connected to multiple Th...
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The invention provides a protection system of a hoisting mechanism of a rotary drilling rig. The protection system is characterized in that a cathode of a power source (2) is grounded via a power switch (1), an anode of the power source (2) is connected with a weight measuring hinge pin sensor (3) and an anode of a controller (4), a cathode of the controller (4) and the weight measuring hinge pin sensor (3) are grounded, the weight measuring hinge pin sensor (3) is connected with a CAN (controller area network) interface of the controller (4), an output pin of the controller (4) is connected with one end of a pressurization overflow electromagnetic valve (5), the other end of the pressurization overflow electromagnetic valve (5) is grounded, a port P of the pressurization overflow electromagnetic valve (5) is connected with a pressurization linkage port LS of a multi-way valve (6) by a pipeline, and a port T of the pressurization overflow electromagnetic valve (5) is connected with a hydraulic oil tank by a pipeline. The protection system has the advantages that downward tensile force which is exerted by a power head of the rotary drilling rig on a main hoisting steel wire rope can be constrained, and accordingly the safety of the main hoisting steel wire rope, a main hoisting motor, a main hoisting balance valve and a main hoisting speed reducer and the integral stability of the rotary drilling rig can be guaranteed.
Description
technical field [0001] The invention relates to a protection system for a winch mechanism of a rotary drilling rig. Background technique [0002] At present, the winding method of the main hoisting steel wire rope of the rotary drilling rig is through the main hoisting reducer, the back wheel around the drill mast, the goose head pulley, and finally connected to the drill pipe, and the drill pipe of the rotary drilling rig passes through the power Match the driver key bar of the head. During the normal construction process of the rotary drilling rig, the drill bit connected to the drill pipe is in contact with the ground at the bottom of the hole, the main winch is in a floating state, the main winch wire rope is not stressed, the power head drives the drill pipe and applies pressure to the drill pipe to ensure that the drill bit footage construction. [0003] In some working conditions of rotary drilling rigs: when the casing is under casing construction, the main hoistin...
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Login to View More IPC IPC(8): B66D1/54B66D1/48
CPCB66D1/485B66D1/54
Inventor 范强生张杰孙余张继光张泉波郭焕焕魏彩凤
Owner XUZHOU XUGONG FOUND CONSTR MACHINERY