CN110714728B - Device for moving drilling tools on electric remote control catwalk and application method thereof - Google Patents

Abstract

The present invention relates to a device for moving drilling tools on an electric remote control catwalk and a method for using the device. When the drilling tool needs to be pulled forward, the first hook of the wire rope only needs to be drawn out from the hole below the ramp and hung on the drilling tool wire lifting ring at the female thread end of the drilling tool. The operator only needs to start the remote control, and the remote control motor drum starts to rotate, driving the wire rope to start pulling the drilling tool forward; when the drill rod needs to be pulled backward, another pre-laid wire rope that is changed in direction by a change-direction pulley block and drawn out from the back of the catwalk and the second hook are hung on the cap lifting ring at the male thread end of the drilling tool. The operator starts the remote control, and the remote control motor rotates, driving the wire rope to pull the drilling tool to start moving backward. The present invention has a simple structure and stable movement, can greatly reduce the labor intensity of drilling workers moving the drilling rod forward and backward on the site, and has the advantages of safe operation, convenience, labor saving, high efficiency, etc.

Description

A device for moving drilling tools on an electric remote-controlled catwalk and a method of using the device

Technical Field

The invention belongs to the technical field of drilling engineering machinery, and in particular relates to a device for moving drilling tools on an electric remote-controlled catwalk and a use method thereof.

Background Art

During the production process of the drilling industry, when the drilling tools (drill pipes, casings, drill collars, etc.) are moved on the catwalk, at least 2-3 people are required to cooperate. Two people are responsible for operating the small pneumatic winch, and one person is responsible for hanging the rope on the site. The specific process is as follows: a) Putting on the drilling tools: First, the workers push the drilling tools from the drill pipe rack to the catwalk, and the pneumatic winch on the drilling platform lowers the wire rope to hang the top of the drilling tools. The drilling tools are directly lifted to the drilling platform along the catwalk and ramp using rigging; b) Putting down the drilling tools: First, use the pneumatic winch on the drilling platform to hang the top of the drilling tools, and then use the pneumatic winch on the catwalk to hook the bottom of the drilling tools, pull the drilling tools into the ramp, and slide them onto the catwalk along the V-shaped groove of the ramp. Two pneumatic winches are required to be used together to slide the drilling tools to the tail of the catwalk to the appropriate position. Finally, the wire ropes of the two pneumatic winches are removed, and the drilling tools are manually pushed back from the catwalk to the drill pipe discharge rack. During operation, since it is difficult to control the traction speed, the drilling tool often rushes forward and hits the gate ramp or rushes out of the catwalk into the drilling platform, causing dangerous incidents and bringing great risk of injury to personnel and equipment; furthermore, the operator needs to use manpower to drag the drill rod from the front catwalk to the back field with a rope, which has high labor intensity, low working efficiency and high work risk factor.

For example, a "drill rod upper and lower drilling platform automatic operation device" disclosed in patent number CN102230364A includes a ramp, a catwalk, a catwalk support frame and a catwalk vehicle that slides with the catwalk, and its characteristics are: a ramp vehicle that slides with the ramp is provided on the ramp, a ramp push-block mechanism and a flip mechanism are respectively provided at the lower end of the ramp and the docking point of the catwalk, a lifting mechanism is provided on the catwalk near the flipping mechanism, and no less than two drill rod unloading mechanisms are also arranged at intervals in the middle of the catwalk; the ramp vehicle is a drill rod lower holder hinged to the drill rod upper holder at one end, and the ramp vehicle driving cylinder is connected at its hinge end to drive the drill rod upper holder to open and close with the drill rod lower holder, and rollers and limit blocks are respectively provided at both ends of the drill rod lower holder, and the limit blocks slide with the inclined rails on both sides of the ramp; the ramp push-block mechanism is a V-shaped drill rod lower holder connected to the inner shaft at the lower end of the ramp. The baffle is driven to rotate by a baffle driving cylinder connected to the ramp; the flip mechanism is a flap shaft connected to the front end of the catwalk, and the bottom of the flap is connected to the flap driving cylinder to form a flipping cooperation; the lifting mechanism is connected by the drill pipe top plate and the top plate driving cylinder located below the drill pipe top plate, forming an up and down reciprocating movement of the drill pipe top plate, and the upper end surface of the drill pipe top plate is provided with several parallel grooves; the push-off mechanism is composed of the drill pipe top plate and the top plate driving cylinder connected below, forming a lifting and flipping cooperation of the drill pipe top plate; rollers are respectively provided at both ends of the catwalk vehicle body The wheels and side seats, roller wheels and side seats form a sliding fit with both sides of the catwalk, a support plate for overlapping the drill rod is provided on the front side of the vehicle body, the support plate is connected to the drill rod holder by a shaft, the drill rod holder is connected to the catwalk vehicle drive cylinder on the rotating shaft, the drill rod holder is provided with a groove corresponding to the groove set on the top plate of the lifting mechanism drill rod, and forms a clamping fit with the drill rod, the catwalk vehicle is connected by a reciprocating drive of a motor and a pull rope or chain; the aforementioned ramp push mechanism, flip mechanism, lifting mechanism, push-off mechanism and catwalk vehicle drill rod holder are all driven by hydraulic or pneumatic pressure, and the driving cylinder matched with them is a hydraulic or pneumatic cylinder. Although the device solves the problems of low mechanization and automation, poor safety and high labor intensity of operators in the prior art, it has the problems of cumbersome installation and disassembly, high investment cost, and is difficult to popularize.

Summary of the invention

The purpose of the embodiments of the present invention is to provide a device for moving drilling tools on an electric remote-controlled catwalk and a method of using the device to overcome the above technical defects.

To achieve the above purpose, the technical solution adopted by the present invention is as follows:

A device for moving drilling tools on an electric remote-controlled catwalk comprises a horizontally arranged catwalk and an inclined gate ramp, wherein the upper end of the gate ramp is connected to a drilling platform, and the lower end of the gate ramp is connected to the catwalk, and drilling tools are placed on the catwalk. The device also comprises a remote-controlled motor, a direction-changing pulley block and a pulling mechanism, wherein the remote-controlled motor is installed below the gate ramp, and the direction-changing pulley block is arranged on a side wall of the catwalk away from one end of the gate ramp; the remote-controlled motor controls the drilling tools to move forward on the catwalk through the pulling mechanism, and controls the drilling tools to move backward on the catwalk through the pulling mechanism and the direction-changing pulley block.

Furthermore, the pulling mechanism is a steel wire rope wound on the drum of the remote control motor, one end of the steel wire rope is wound around the drum of the remote control motor and is pulled, and the other end of the steel wire rope is in a free state.

Specifically, a first hook is connected to the pulled end of the steel wire rope, a through hole is provided below the gate ramp, the first hook of the steel wire rope passes through the through hole and is connected to an end of the drilling tool close to the gate ramp, and the remote control motor drives the drilling tool on the catwalk from the end away from the gate ramp toward the gate ramp through the steel wire rope connected to the first hook.

Specifically, the end of the wire rope that is pulled is connected to a second hook, and after passing through the changing pulley group, the end of the wire rope that is pulled is connected to the end of the drilling tool away from the gate ramp through the second hook. The remote control motor drives the drilling tool on the catwalk from the bottom of the gate ramp to the end away from the gate ramp through the wire rope connected to the second hook.

Preferably, the direction-changing pulley block comprises pulley 1 and pulley 2, and pulley 1 and pulley 2 are arranged side by side on a side wall of the catwalk at one end away from the ramp of the gate.

Preferably, the drill tool has a female threaded end close to the gate ramp and a male threaded end away from the gate ramp, the female threaded end of the drill tool is connected to a drill tool lifting wire, and the male threaded end of the drill tool is connected to a protective cap lifting ring.

Preferably, the first hook of the wire rope is hooked to the drill wire lifting ring at the female thread end of the drill tool, and the second hook of the wire rope is hooked to the protective cap lifting ring at the male thread end of the drill tool.

Furthermore, the device also includes a remote controller, which controls the remote control motor to rotate forward or reverse, drives the reel of the remote control motor to rotate, and tightens or loosens the wire rope.

Preferably, the remote control motor is a 0-20 m/min adjustable speed motor.

A method for using a device for moving drilling tools on an electric remote-controlled catwalk comprises the following steps:

S001: When the drilling tool moves forward on the catwalk, the first hook of the wire rope is led out from the through hole below the gate ramp and hung on the end of the drilling tool close to the gate ramp;

S002: The operator starts the remote control switch to control the remote control motor to rotate forward, driving the wire rope to move the drilling tool on the catwalk from the end away from the gate ramp to the gate ramp direction;

S003: When the drilling tool needs to move backward on the catwalk, the pulled end of the wire rope is passed through the first pulley and the second pulley in sequence, and then connected to the end of the drilling tool away from the ramp of the gate through the second hook;

S004: The operator starts the remote control switch, controls the remote control motor to reverse, and drives the wire rope to move the drilling tool on the catwalk from the bottom of the gate ramp to the end away from the gate ramp.

The beneficial effects of the present invention are as follows:

1. The present invention uses a remote-controlled forward and reverse motor as a power source, and forms a set of direction-changing mechanisms through a steel wire rope and a direction-changing pulley block. The horizontal pulling force required to pull the drill tool is transmitted from the remote-controlled motor to the drill tool placed on the catwalk. The drill tool can be remotely controlled to move forward and backward on the catwalk safely, labor-saving, smoothly and efficiently, and does not occupy any site working area or escape passage.

2. The present invention realizes the required direction-changing requirement of the steel wire rope by arranging a direction-changing pulley block on the side wall of the catwalk.

3. The present invention has a simple structure and stable movement, which can greatly reduce the labor intensity of drilling workers in moving the drilling tools back and forth on the site. The operation is safe, convenient, labor-saving and efficient.

The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of the present invention.

Description of reference numerals:

1. Remote control motor; 2. Remote control; 3. Wire rope; 4. First hook; 5. Second hook; 6. Pulley one; 7. Pulley two; 8. Catwalk; 9. Gate ramp; 10. Drilling platform; 11. Through hole.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

First embodiment

The first embodiment of the present invention relates to a device for moving drilling tools on an electric remote-controlled catwalk, as shown in Figure 1, comprising a horizontally arranged catwalk 8 and an inclined gate ramp 9, the upper end of the gate ramp 9 is connected to the drilling platform 10, and the lower end of the gate ramp 9 is connected to the catwalk 8, and drilling tools are placed on the catwalk 8. The device also includes a remote-controlled motor 1, a direction-changing pulley block and a pulling mechanism, the remote-controlled motor 1 is installed below the gate ramp 9, and the direction-changing pulley block is arranged on the side wall of the catwalk 8 away from the gate ramp 9; the remote-controlled motor 1 controls the drilling tool to move forward on the catwalk 8 through the pulling mechanism, and the remote-controlled motor 1 controls the drilling tool to move backward on the catwalk 8 through the pulling mechanism and the direction-changing pulley block.

This embodiment also protects a method for using a device for moving drilling tools on an electric remote control catwalk, comprising the following steps:

S001: When the drilling tool moves forward on the catwalk 8, the first hook 4 of the wire rope 3 is led out from the through hole below the gate ramp 9 and hung on the end of the drilling tool close to the gate ramp 9;

S002: The operator starts the remote control switch to control the remote control motor 1 to rotate forward, driving the wire rope 3 to move the drilling tool on the catwalk 8 from the end away from the gate ramp 9 to the gate ramp 9;

S003: When the drilling tool needs to move backward on the catwalk 8, the pulled end of the wire rope 3 is connected to the end of the drilling tool away from the gate ramp 9 through the second hook 5 after passing through the direction-changing pulley block;

S004: The operator starts the remote control switch to control the remote control motor 1 to reverse, driving the wire rope 3 to move the drilling tool on the catwalk 8 from the bottom of the gate ramp 9 to the end away from the gate ramp 9.

The present invention uses a remote-controlled forward and reverse motor as a power source, and forms a set of direction-changing mechanisms through a steel wire rope and a direction-changing pulley group. The horizontal pulling force required for pulling the drilling tool is transmitted from the remote-controlled motor to the drilling tool placed on the catwalk. The drilling tool can be remotely controlled to move forward and backward on the catwalk safely, labor-saving, smoothly and efficiently, and does not occupy any site working area or escape passage.

Second embodiment

The present embodiment relates to a device for moving drilling tools on an electric remote-controlled catwalk, as shown in FIG1 , comprising a horizontally arranged catwalk 8 and an inclined gate ramp 9, wherein the upper end of the gate ramp 9 is connected to a drilling platform 10, and the lower end of the gate ramp 9 is connected to the catwalk 8, and drilling tools are placed on the catwalk 8. The device also comprises a remote-controlled motor 1, a direction-changing pulley block and a pulling mechanism, and further, the pulling mechanism is a steel wire rope 3 wound on the drum of the remote-controlled motor 1, one end of the steel wire rope 3 is wound around the drum of the remote-controlled motor 1 and pulled, and the other end of the steel wire rope 3 is in a free state; when the pulled end of the steel wire rope 3 is connected to a first hook 4, the gate ramp A through hole 11 is provided below 9, and the first hook 4 of the wire rope 3 passes through the through hole 11 and is connected to the end of the drilling tool close to the gate ramp 9, and the remote control motor 1 drives the drilling tool on the catwalk 8 from the end away from the gate ramp 9 to the gate ramp 9 through the wire rope 3 connected with the first hook 4; when the end of the wire rope 3 being pulled is connected with the second hook 5, the end of the wire rope 3 being pulled is connected to the end of the drilling tool away from the gate ramp 9 through the second hook 5 after being bypassed by the changing pulley group, and the remote control motor 1 drives the drilling tool on the catwalk 8 from the bottom of the gate ramp 9 to the end away from the gate ramp 9 through the wire rope 3 connected with the second hook 5.

In this embodiment, it is worth mentioning that the device also includes a remote controller 2, which controls the remote control motor 1 to rotate forward or reverse. The present invention uses a 3-kilowatt remote control forward and reverse motor as a power source, which can generate a pulling force of 1,500 kilograms. Through the cooperation of a steel wire rope and a change-of-direction pulley set, a set of change-of-direction mechanisms is formed, and the horizontal pulling force required to pull the drill tool is transmitted from the motor to the drill tool placed on the catwalk. Furthermore, the remote control motor is a 0-20 m/min adjustable speed motor, and the remote control motor is installed below the gate ramp and at the end of the catwalk, so it will not affect the normal passage of the site.

Furthermore, the direction-changing pulley group includes pulley one 6 and pulley two 7, and the pulley one 6 and pulley two 7 are vertically arranged side by side on the side wall of the catwalk 8 away from the gate ramp 9, thereby achieving the required direction-changing requirements of the wire rope.

This embodiment also protects a method for using a device for moving drilling tools on an electric remote control catwalk, comprising the following steps:

S001: When the drilling tool moves forward on the catwalk 8, the first hook 4 of the wire rope 3 is led out from the through hole 11 below the gate ramp 9 and hung on the end of the drilling tool close to the gate ramp 9;

S002: The operator starts the remote control switch to control the remote control motor 1 to rotate forward, driving the wire rope 3 to move the drilling tool on the catwalk 8 from the end away from the gate ramp 9 to the gate ramp 9;

S003: When the drilling tool needs to move backward on the catwalk 8, the pulled end of the wire rope 3 is passed through the pulley 1 6 and the pulley 2 7 in sequence, and then connected to the end of the drilling tool away from the gate ramp 9 through the second hook 5;

S004: The operator starts the remote control switch to control the remote control motor 1 to reverse, driving the wire rope 3 to move the drilling tool on the catwalk 8 from the bottom of the gate ramp 9 to the end away from the gate ramp 9.

Third embodiment

The present embodiment relates to a device for moving drilling tools on an electric remote-controlled catwalk, as shown in FIG1 , comprising a horizontally arranged catwalk 8 and an inclined gate ramp 9, wherein the upper end of the gate ramp 9 is connected to a drilling platform 10, and the lower end of the gate ramp 9 is connected to the catwalk 8, and drilling tools are placed on the catwalk 8. The device also comprises a remote-controlled motor 1, a pulley 1 6, a pulley 2 7 and a pulling mechanism, wherein the pulley 1 6 and the pulley 2 7 are vertically arranged side by side on the side wall of the catwalk 8 away from the end of the gate ramp 9, and the pulling mechanism is a steel wire rope 3 wound on the drum of the remote-controlled motor 1, wherein one end of the steel wire rope 3 is wound around the drum of the remote-controlled motor 1 and is pulled, and the other end of the steel wire rope 3 is in a free state; when the steel wire rope 3 is pulled A first hook 4 is connected to one end, and a through hole 11 is provided below the gate ramp 9. The first hook 4 of the wire rope 3 passes through the through hole 11 and is connected to the end of the drilling tool close to the gate ramp 9. The remote control motor 1 drives the drilling tool on the catwalk 8 from the end away from the gate ramp 9 to the gate ramp 9 through the wire rope 3 connected to the first hook 4; when the end of the wire rope 3 is pulled is connected to the second hook 5, the end of the wire rope 3 is pulled and connected to the end of the drilling tool away from the gate ramp 9 through the second hook 5 after passing through the changing pulley group. The remote control motor 1 drives the drilling tool on the catwalk 8 from the bottom of the gate ramp 9 to the end away from the gate ramp 9 through the wire rope 3 connected to the second hook 5.

In this embodiment, further, the drilling tool has a female thread end close to the gate ramp 9 and a male thread end away from the gate ramp 9, the female thread end of the drilling tool is connected to a drilling tool lifting wire, and the male thread end of the drilling tool is connected to a cap lifting ring. Preferably, the first hook 4 of the wire rope 3 is hooked to the drilling tool lifting wire of the female thread end of the drilling tool, and the second hook 5 of the wire rope 3 is hooked to the cap lifting ring of the male thread end of the drilling tool.

This embodiment also protects a method for using a device for moving drilling tools on an electric remote control catwalk, comprising the following steps:

S001: When the drilling tool moves forward on the catwalk 8, the first hook 4 of the wire rope 3 is led out from the through hole 11 below the gate ramp 9 and hung on the drilling tool lifting wire at the female thread end of the drilling tool;

S002: The operator starts the remote control switch to control the remote control motor 1 to rotate forward, driving the wire rope 3 to move the drilling tool on the catwalk 8 from the end away from the gate ramp 9 to the gate ramp 9;

S003: When the drilling tool needs to move backward on the catwalk 8, the pulled end of the wire rope 3 is passed through the pulley 1 6 and the pulley 2 7 in sequence and then hung on the cap lifting ring of the male thread end of the drilling tool through the second hook 5;

S004: The operator starts the remote control switch to control the remote control motor 1 to reverse, driving the wire rope 3 to move the drilling tool on the catwalk 8 from the bottom of the gate ramp 9 to the end away from the gate ramp 9.

In summary, when the drilling tool needs to be pulled forward, the device of the present invention only needs to lead out the first hook of the wire rope from the hole below the ramp and hang it on the drilling tool wire lifting ring at the female thread end of the drilling tool. The operator only needs to start the remote control, and the remote control motor drum starts to rotate, driving the wire rope to start pulling the drilling tool forward; when the drill rod needs to be pulled backward, it is only necessary to hang another pre-laid wire rope that is changed by the change-direction pulley group and led out from the back field below the catwalk and the second hook on the protective cap lifting ring at the male thread end of the drilling tool. The operator starts the remote control, and the remote control motor rotates, driving the wire rope to pull the drilling tool to start moving backward. Therefore, the present invention has a simple structure and stable movement, which can greatly reduce the labor intensity of drilling workers moving the drill rod forward and backward on the site, and has the advantages of safe, convenient, labor-saving, and efficient operation.

The parts not specifically described in the above embodiments belong to well-known components and common structures or common means in the technical field, and will not be described in detail here.

It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

In the absence of conflicts, technicians in this field can combine the relevant technical features in the above examples according to actual conditions to achieve corresponding technical effects. The specific combinations are not described here one by one.

Claims (4)

1. The utility model provides a device that drilling tool was moved on electronic remote control catwalk, includes catwalk (8) that the level set up and the gate ramp (9) that the slope set up, and the upper end and the drill floor (10) of gate ramp (9) link to each other, and the lower extreme of gate ramp (9) is connected with catwalk (8), drilling tool, its characterized in that have been placed on catwalk (8): the device also comprises a remote control motor (1), a turning pulley block and a traction mechanism, wherein the remote control motor (1) is arranged below the gate ramp (9), and the turning pulley block is arranged on the side wall of the catwalk (8) far away from one end of the gate ramp (9); the remote control motor (1) controls the drilling tool to move forwards on the catwalk (8) through the traction mechanism, and the remote control motor (1) controls the drilling tool to move backwards on the catwalk (8) through the traction mechanism and the turning pulley block;

The traction mechanism is a steel wire rope (3) wound on a roller of the remote control motor (1), one end of the steel wire rope (3) is wound out of the roller of the remote control motor (1) and is pulled, and the other end of the steel wire rope (3) is in a free state;

when one end of the steel wire rope (3) which is pulled is connected with a first hook (4), a through hole (11) is formed below the gate ramp (9), the first hook (4) of the steel wire rope (3) penetrates through the through hole (11) to be connected with one end of the drilling tool which is close to the gate ramp (9), and the remote control motor (1) drives the drilling tool to move on the catwalk (8) from one end which is far away from the gate ramp (9) to the gate ramp (9) through the steel wire rope (3) which is connected with the first hook (4);

When one end of the steel wire rope (3) which is pulled is connected with a second hook (5), the one end of the steel wire rope (3) which is pulled is connected with one end of the drilling tool which is far away from the gate ramp (9) through the second hook (5) after bypassing through the turning pulley block, and the remote control motor (1) drives the drilling tool to move on the catwalk (8) from the lower direction of the gate ramp (9) to one end which is far away from the gate ramp (9) through the steel wire rope (3) which is connected with the second hook (5);

the turning pulley block comprises a pulley I (6) and a pulley II (7), and the pulley I (6) and the pulley II (7) are arranged on the side wall of the catwalk (8) far away from one end of the gate ramp (9) side by side;

The drilling tool is provided with a female thread end close to the gate ramp (9) and a male thread end far away from the gate ramp (9), the female thread end of the drilling tool is connected with a drilling tool lifting wire, and the male thread end of the drilling tool is connected with a protective cap lifting ring;

the first hook (4) of the steel wire rope (3) is connected with a drilling tool lifting wire at the female threaded end of the drilling tool in a hanging mode, and the second hook (5) of the steel wire rope (3) is connected with a protective cap lifting ring at the male threaded end of the drilling tool in a hanging mode.

2. The device for moving a drilling tool on an electrically-operated catwalk according to claim 1, wherein: the device also comprises a remote controller (2), wherein the remote controller (2) controls the remote control motor (1) to rotate forward or reversely, and drives the winding drum of the remote control motor (1) to rotate, so as to tighten or loosen the steel wire rope (3).

3. The device for moving a drilling tool on an electrically-operated catwalk according to claim 1, wherein: the remote control motor (1) is a speed-adjustable motor with the speed of 0-20 m/min.

4. A method of using an apparatus for electrically remotely controlling the movement of a drill on a catwalk according to any one of claims 1 to 3, comprising the steps of:

S001, when the drilling tool moves forwards on the catwalk (8), the first hook (4) of the steel wire rope (3) is led out from the through hole (11) below the gate ramp (9) and is hung at one end of the drilling tool close to the gate ramp (9);

S002: an operator starts a remote control switch to control the remote control motor (1) to rotate forward, and drives the steel wire rope (3) to move the drilling tool on the catwalk (8) from one end far away from the gate ramp (9) to the gate ramp (9);

S003: when the drilling tool is required to move backwards on the catwalk (8), one end, which is pulled by the steel wire rope (3), sequentially passes through the pulley I (6) and the pulley II (7) to detour, and then is connected with one end, which is far away from the gate ramp (9), of the drilling tool through the second hook (5);

s004: an operator starts a remote control switch to control the remote control motor (1) to rotate reversely, and drives the steel wire rope (3) to move the drilling tool on the catwalk (8) from the lower direction of the gate ramp (9) to the end far away from the gate ramp (9).