Rotary drilling rig and rotating system thereof

Abstract

The invention provides a rotary drilling rig and a rotating system thereof. The rotating system comprises a rotating motor, a rotating speed reducer, a main rotating brake and an auxiliary rotating brake; the main rotating brake is arranged in the rotating motor or the rotating speed reducer; the auxiliary rotating brake is connected with the output end of the rotating motor and the input end of the rotating speed reducer; and the auxiliary rotating brake and the main rotating brake provide braking torque simultaneously, so that an upper vehicle body of the rotary drilling rig is in a locked state. According to the rotary drilling rig and the rotating system thereof, one auxiliary rotating brake is additionally arranged between the output end of the rotating motor and the input end of therotating speed reducer, thus the auxiliary rotating brake and the main rotating brake are utilized to provide the braking torque simultaneously, the rotating braking torque of a whole vehicle is increased, the problem of accurate positioning of rotating of the drilling rig is solved, and the problem of left-right swinging of the upper vehicle body under the locked state of the upper vehicle body of the drilling rig during construction is relieved; and during reconstruction, the upper vehicle body with a special crawler chassis does not need to be changed, and thus the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of drilling rigs, in particular to a rotary drilling rig and a rotary system thereof. Background technique [0002] The rotary system of the rotary drilling rig is composed of a hydraulic rotary system and a rotary mechanism. The hydraulic rotary system is generally a valve-controlled rotary motor system. The upper body of the rotary drilling rig realizes the rotation through the slewing mechanism and the bottom frame. The slewing mechanism is composed of a slewing motor, a slewing reducer, a slewing bearing, etc., and is connected with the bottom frame by fasteners such as bolts; the slewing motor or A slewing brake is installed in the slewing reducer. [0003] When the slewing system of the rotary drilling rig is started, the slewing brake solenoid valve is energized, the control oil enters the slewing brake, and the control oil overcomes the spring pressure of the disc brake to open the brake. The pilot...

AI Technical Summary

Problems solved by technology

[0008] In view of this, the object of the present invention is to provide a rotary drilling rig and its slewing system to increase the slewing braking torque and reduce the cost, thereby solving the problem of precise positioning of the rig rotation and relieving the locking state of the upper body of the rig during construction. There is a problem that the upper body swings from side to side

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