CN104074469B - Super large caliber drilling rig rotary drilling shelf structure - Google Patents

Abstract

<b>Rotary Drill Stand Structure of Super Large Caliber Drilling Rig</b><b>,</b><b>The drill stand structure has a </b><b>“</b><b>┴</b><b>┴</ b><b>"-shaped frame, which is composed of a vertical rotating pipe, a horizontal running track and a bearing track. The axial center of the rotating pipe is a hollow channel, and the channel is filled with slag For the pipelines and passages of mud and hydropower, the outer circumferential surface of the rotating pipeline is provided with helical lines and axial sliding keyways from top to bottom. The keyway is equipped with a driving gear that promotes the rotation of the rotating pipe through a sliding key; at the lower end of the rotating pipe, the running track and the carrying track are vertically connected horizontally. It is installed to perform drilling and drainage operations, and its water and electricity pipelines and passages are also installed on it. It has simple structure, flexible rotation, large carrying capacity and low energy consumption. </b>

Description

Rotary Drill Stand Structure of Super Large Diameter Drilling Rig

technical field

The invention relates to a structure of a super-large-diameter drilling rig, in particular to a structure of a rotary drilling rig of a super-large-diameter drilling rig.

Background technique

At present, most of the drilling rigs used for drilling operations have a relatively small drilling diameter, and the drilling depth is not enough. This is very unfavorable to drilling operations, not only can not meet the requirements of drilling, but also wastes too many resources in the drilling operation process, one is that the existing drilling rigs are large in size and difficult to transport, and the other is that they consume a lot of energy, which increases the drilling cost , especially for super-large caliber drilling rigs. The 3rd, the structure of large drilling rig is complicated, and the whole machine is expensive. This is the case, for example, with the pusher drilling rigs used in subway construction.

Contents of the invention

In order to solve the problem that the drilling caliber is small in actual drilling operations, the present invention provides a rotary drill stand structure for a super-large-diameter drilling rig, which is one of the key components of a super-large-caliber drilling rig. The two major parts of the drilling head structure and the exhaust and suction structure of the drilling rig are installed to carry out drilling and discharge operations, and the pipelines and passages such as water and electricity are also installed inside. It has a simple structure, flexible rotation, and large load capacity. Energy consumption is small.

The technical solution adopted by the present invention to solve the technical problem is: the drill frame structure has a "┴"-shaped frame body, which is composed of a vertical rotating pipe, a horizontal running track and a bearing track, and the rotating pipe Its axial center is a hollow channel, which is equipped with slag and water and electricity pipes and passages. The outer peripheral surface of the rotating pipe is provided with spiral lines and axial sliding keyways from top to bottom. It is installed with a large nut that promotes the up and down follow-up and retraction of the rotating pipe, and the sliding keyway is equipped with a driving gear that promotes the rotation of the rotating pipe through the sliding key; at the lower end of the rotating pipe, it is horizontally and vertically connected with the running track and the load-carrying track. The bearing track and the bearing track are a pair of rectangular frame structures with axial symmetry, which are divided into upper and lower layers. The excavator and the suction and discharge machine with bearing rollers are matched and installed. When the driving gear is rotated forward or reversely by the motor gear, it will drive the vertical rotating pipe and the horizontal drilling track and bearing track to rotate. It can move up and down along the thread direction in the big nut, so as to drive the structure of the drilling machine and the structure of the suction and discharge machine on the bearing rail to carry out follow-up operations or retraction operations.

In the follow-up and withdrawal of the rotating pipeline, it is mainly controlled by the touch switch a and the touch switch b. When the rotating pipeline follows up to the lower limit position, the touch switch a is touched, prompting the drive motor to reverse Turn, drive the rotary pipeline to retreat, when the rotary pipeline retracts to the upper limit position, the touch switch b is touched, the retraction is terminated, and the drive motor rotates in reverse, prompting the rotary pipeline to follow up the operation.

The main operation principle of the present invention is that a control device for controlling the structure of the drilling machine and the suction and discharge machine is provided on the ground. The normal operation of the machine makes the drilling machine and the suction and discharge machine not only move regularly from small diameter to large diameter, but also move synchronously with the circular motion of the rotating turret. The drilling machine must have its own rotation For drilling operations, the suction and discharge machine must follow up the suction and discharge operations synchronously; at the upper end of the rotating pipe in the middle of the rotary drilling frame, a rotary joint structure connecting the upper and lower rigs is installed. The upper conveying pipe is fixed, and the lower part is rotating. The pipeline is rotating, and there are transmission pipelines and circuit channels installed in the inner space of the upper and lower pipelines. At the fixed and rotating connection points, the transmission pipeline is required to be sealed very tightly, and there is no possibility of disconnection and air leakage. The circuit channel requires electrical The connection is very tight, and it is impossible to disconnect and cut off the power. These structures are installed in the rotary joint structure, and the rotary joint is installed at the upper end of the rotary pipe, so the rotary turret structure is one of the important structural components. one.

The current wires A, B, and C are electrically connected to the isolating switch QS, the low-voltage circuit breaker QF, and the AC contactor KM through the terminals L1, L2, and L3 in sequence, and the output end of the AC contactor KM is connected to the input end a of the travel controller SA respectively. , b, c terminals and a', b', c' terminals, the output terminal of the stroke controller SA is connected to the wiring terminals of the motors M1 and M2 respectively through the thermal relay, and the motor shell is grounded again. The control principle of the above circuit is: When the AC contactor KM starts, the current passes through the stroke controller SA to make the motor run in the forward direction. When the structure of the drilling head touches the limit point, the stroke controller drives the motors M1 and M2 to reverse direction through the conversion of the switch contacts. Rotate, otherwise the motor rotates forward again.

The stroke controller SA completes the forward rotation and reverse rotation of the motor M1 through its normally open and normally closed contacts. M is the driving motor for driving the motor gear, so as to promote the synchronous reciprocation of the drilling head and the suction and discharge head to and from the carrying rail. , and complete drilling and suction operations.

Its beneficial effect is: the structure can not only install the two major components of the drilling machine, the drilling head and the discharge suction head, to perform drilling and discharge operations, but also install the pipelines and passages such as water and electricity inside. Its structure is simple, Flexible rotation, large carrying capacity and low energy consumption.

Description of drawings

The following structural drawings and embodiments will further illustrate the present invention.

Fig. 1 is a schematic diagram of the structure principle of the present invention.

Fig. 2 is a schematic diagram of the circuit structure principle of the present invention.

In Figure 1, 1. Rotating pipe, 2. Spiral pattern, 3. Touch switch a, 4. Big nut, 5. Sliding keyway, 6. Driving gear, 7. Touch switch b, 8. Walking track, 9 . Bearing track, 10. Suction and discharge machine, 11. Drilling machine.

detailed description

In Figure 1, the structure includes: rotating pipe 1, spiral lines 2, touch switch a3, large nut 4, sliding keyway 5, driving gear 6, touch switch b7, walking track 8, bearing track 9, suction and discharge machine 10. Drilling machine 11; the drill frame structure has a "┴"-shaped frame body, which is composed of a vertical rotating pipe 1, a horizontal running track 8 and a bearing track 9, and the rotating pipe 1 has a shaft To the center is a hollow channel, which is equipped with pipelines and passages for slag and water and electricity. On the outer peripheral surface of the rotating pipeline 1, there are spiral lines 2 and axial sliding keyways 5 from top to bottom. The spiral lines 2 Equipped with a large nut 4 that promotes the up and down follow-up and withdrawal of the rotating pipe 1, the sliding keyway 5 is equipped with a driving gear 6 that promotes the rotation of the rotating pipe 1 through the sliding key; at the lower end of the rotating pipe 1, it is horizontally and vertically connected to the walking The track 8 and the bearing track 9, the walking track 8 and the bearing track 9 are a pair of axially symmetrical rectangular frame structures, which are divided into upper and lower layers. And on the bearing track 9, respectively match with the drilling machine 11 and the suction and discharge machine 10 that the upper part has the traveling wheels and the lower part has the bearing rolling wheels. When the driving gear 6 is rotated forward or reversely by the motor gear, it will drive the vertical rotating pipeline 1, the horizontal running track 8 and the bearing track 9 to rotate, and at the same time, because the driving gear 6 is equipped with a large nut 4, the vertical The rotating pipeline 1 in the direction can move up and down along the thread direction in the big nut 4, thereby driving the structure of the drilling machine 11 and the structure of the suction and discharge machine 10 on the bearing rail 9 to carry out follow-up operations or retraction operations.

During the follow-up and withdrawal of the rotating pipe 1, it is mainly controlled by the touch switch a3 and the touch switch b7. When the rotating pipe 1 follows up to the lower limit position, the touch switch a3 is touched, prompting the The motor reverses, driving the rotating pipeline 1 to retreat. When the rotating pipeline 1 retracts to the upper limit position, the touch switch b7 is touched, and the withdrawal is terminated. The driving motor rotates in reverse, prompting the rotating pipeline 1 to follow up the operation. M in the figure is the driving motor.

In the figure, the main operating principle of the present invention is that a control device for controlling the structure of the drilling machine 11 and the suction and discharge machine 10 is provided on the ground, and the control device will drive and control the overall rotation of the rotary turret through a rotary drive motor, and at the same time Control the normal operation of the drilling machine 11 and the suction and discharge machine 10, so that the drilling machine 11 and the suction and discharge machine 10 not only move regularly from small diameter to large diameter, but also synchronize with the circular motion of the rotating turret To move, the drilling machine 11 must have its own rotary drilling operation, and the suction and discharge machine must have a synchronous follow-up suction and discharge operation; at the upper end of the rotating pipeline 1 in the middle of the rotary drilling frame, a rotary joint structure connecting the upper and lower rigs is installed , the upper conveying pipeline is fixed, and the lower rotating pipeline is rotating. The conveying pipeline and circuit channel are installed in the inner space of the upper and lower pipelines. It cannot be disconnected and leaked. The circuit channel requires a very tight electrical connection, and it cannot be disconnected or cut off at all. These structures are installed in the rotary joint structure, and this rotary joint is installed on the upper end of the rotary pipe, so The rotating turret structure is one of the important structural components.

In the figure, the current wires A, B, and C are electrically connected to the isolating switch QS, the low-voltage circuit breaker QF, and the AC contactor KM through terminals L1, L2, and L3 in sequence, and the output terminals of the AC contactor KM are connected to the travel controller SA respectively. The input terminals a, b, c and a', b', c' of the stroke controller, the output terminal of the travel controller SA are respectively connected to the terminals of the motor M1 and M2 through the thermal relay, and the motor shell is grounded again. The above circuit The control principle is: when the AC contactor KM starts, the current passes through the stroke controller SA to make the motor run in the positive direction. When the structure of the drilling head touches the limit point, the stroke controller drives the motor M1 through the conversion of the switch contact. , M2 rotates in reverse, otherwise the motor rotates forward.

The stroke controller SA completes the forward rotation and reverse rotation of the motor M1 through its normally open and normally closed contacts. M1 is the drive motor for the drive gear, thereby promoting the synchronous movement of the drilling head and the suction and discharge head to and from the carrying rail. And complete the drilling and suction operations.

Claims (2)

1. The structure of the rotary drill frame of the ultra-large-diameter drilling rig, which includes: the rotating pipe (1), the spiral pattern (2), the touch switch a (3), the large nut (4), the sliding keyway (5), the driving gear ( 6), touch switch b (7), walking track (8), bearing track (9), suction and discharge machine (10), drilling and excavating machine (11); the characteristic is that the drill frame structure has a "┴" shape frame body, the frame body is composed of a vertical rotating pipe (1), a horizontal walking track (8) and a bearing track (9), the axial center of the rotating pipe (1) is a hollow channel, the The channel is equipped with slag and water and electricity pipes and passages. The outer circumferential surface of the rotating pipe (1) is provided with spiral lines (2) and axial sliding keyways (5) from top to bottom. The spiral lines (2) Equipped with a large nut (4) that promotes the up and down follow-up and retraction of the rotating pipe (1), the sliding keyway (5) is equipped with a driving gear (6) that promotes the rotation of the rotating pipe (1) through the sliding key; in the rotating pipe ( The lower end of 1) is horizontally and vertically connected to the walking track (8) and the carrying track (9). The walking track (8) and the carrying track (9) are a pair of axially symmetrical rectangular frame structures, which are divided into upper and lower layers. The upper layer is two traveling rails (8), and the lower layer is two bearing rails (9). The excavator (11) and the suction and discharge machine (10) are matched and installed. 2. The rotary drill frame structure of the ultra-large-diameter drilling rig according to claim 1, characterized in that: the lower limit position of the rotary pipeline (1) is provided with a touch switch a (3), and the upper limit position of the rotary pipeline (1) is There is a touch switch b (7); the current wires A, B, and C are sequentially electrically connected to the isolating switch QS, the low-voltage circuit breaker QF, the AC contactor KM, and the output terminals of the AC contactor KM through the terminals L1, L2, and L3, respectively. Connect the input terminals a, b, c and a', b', c' of the stroke controller SA, and then connect the output terminals of the stroke controller SA to the connecting terminals of the motors M1 and M2 respectively through the thermal relay, and the motor shell Re-ground.