Power catwalk device suitable for safe hoisting of various drilling machines

Abstract

The utility model discloses a power catwalk device suitable for safe hoisting of various drilling machines, which relates to the field of drilling machinery and comprises a catwalk base mounted at a feeding position of a drilling platform, a telescopic arm is arranged in the catwalk base and comprises a telescopic outer arm and a telescopic inner arm, a drill rod supporting plate is arranged in the telescopic arm, and a drill rod is arranged in the drill rod supporting plate. A catwalk trolley is installed in the drill rod supporting plate in a sliding mode, the catwalk trolley can turn over towards one side, and the catwalk trolley moves in the drill rod supporting plate through a left winch driven by a motor. A turnover feeding mechanism is arranged on one side of the catwalk base, and a conveying mechanism is arranged on the outer side of the feeding mechanism. The problem that a winch drags a steel wire rope to hoist a drilling tool in a traditional mode is effectively solved, drilling engineering automation is improved, labor intensity of workers is relieved, auxiliary process time is shortened, and on-site safety risks are reduced.

Description

Technical Field

[0001] The utility model relates to the field of drilling machinery, in particular to a power catwalk device suitable for safe lifting of various types of drilling rigs. Background Art

[0002] In recent years, the level of drilling automation in my country has been greatly improved, but the investment and research on drilling rig supporting equipment, such as the operation of drilling tools on and off the drilling platform, is obviously insufficient. When the equipment arrives at the site, the drill pipes and other drilling tools are neatly placed on the drill pipe rack, and the catwalk and center slide are fixed.

[0003] The vast majority of domestic drilling rigs still use the winch to drag the wire rope to lift the drilling tools. During the processing of most drilling rigs, workers use the two small winches and wire ropes on the left and right sides of the drilling platform, and with the assistance of auxiliary personnel, transport the drill rod rack to the catwalk, and then lift it to the drilling platform through the center slide. At the end of the drilling project, the drill rod is lifted from the drilling platform to the drill rod rack in the same way for removal and relocation. The aforementioned process of lifting the drilling tools on and off the drilling platform requires the skilled cooperation of at least 4 workers. The lifting of a single drilling tool takes about 10 minutes. Not only is the labor intensity of the workers high and the time is long, there are also many safety risks, and the safety factor is extremely low; in addition, as the drilling depth increases, the number of reciprocating times of the drilling tools on and off the drilling platform increases, and the operation is single and highly repetitive.

[0004] In order to improve the automation of drilling projects, reduce the labor intensity of workers, shorten the time of auxiliary processes, and reduce on-site safety risks, a power catwalk suitable for various types of drilling rigs was designed. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technical problems, the purpose of the utility model is to provide a power catwalk device suitable for the safe lifting of various types of drilling rigs, effectively solving the traditional method of winch dragging wire rope to lift drilling tools, improving the automation of drilling projects, reducing the labor intensity of workers, shortening the time of auxiliary processes, and reducing on-site safety risks.

[0006] The technical solution of the utility model is as follows:

[0007] A power catwalk device suitable for safe lifting of various types of drilling rigs, comprising a catwalk base installed at a loading position on a drilling platform, the catwalk base being trough-shaped, a telescopic arm being arranged inside the catwalk base, the telescopic arm comprising a telescopic outer arm and a telescopic inner arm, the left end of the telescopic outer arm being hinged to the left side plate of the catwalk base, and a lifting cylinder being hingedly installed between the middle section of the bottom of the telescopic outer arm and the bottom of the trough of the catwalk base;

[0008] The telescopic inner arm is slidably installed in the telescopic outer arm, and a right winch driven by a motor is installed near the right end of the bottom of the catwalk base. The right winch rope is fixed to the telescopic inner arm to drive the telescopic inner arm to move;

[0009] A vertical bracket and an obliquely hinged unloading cylinder are provided at the bottom of the telescopic inner arm. The vertical bracket and the upper end of the unloading cylinder are hingedly installed on both sides of the V-shaped drill rod support plate. A catwalk trolley is slidably installed in the drill rod support plate. The catwalk trolley moves in the drill rod support plate through a left winch driven by a motor, and the left winch is installed at the left end of the catwalk base.

[0010] Furthermore, the bottom of the telescopic outer arm near the right end is hinged to the bottom of the catwalk base groove near the right end through a two-link mechanism, and the two-link mechanism is folded and hidden between the telescopic outer arm and the catwalk base when the telescopic arm is not in working state.

[0011] Furthermore, a guide rail is provided in the middle of the relative inner wall of the telescopic outer arm, and bearings are installed at intervals at corresponding positions of the telescopic inner arm and the guide rail. The telescopic inner arm is inserted into the bearing from the front end of the telescopic outer arm and rolls in the guide rail. A gap is provided between the outer ring of the bearing and the guide rail to form a rope groove. The right winch rope passes through the rope groove and semi-encloses the telescopic inner arm, and the end of the right winch rope is fixed to the outer wall on the other side of the telescopic inner arm.

[0012] Furthermore, a travel limit plate of the catwalk trolley is provided near the middle section of the opening of the telescopic inner arm, and the downward extension length of the guide plate is lower than the height of the travel limit plate.

[0013] Furthermore, a gap is provided at the bottom of the V-shaped drill rod support plate, the cross-section of the catwalk trolley is V-shaped, a guide plate passing through the gap is provided at the bottom of the catwalk trolley, and anti-slip plates distributed in a V shape are provided on both sides of the guide plate; a guide wheel is provided near the right side of the bottom of the drill rod support plate, and the rope of the left winch driven by the motor passes through the end of the guide wheel and is fixed to the lower end of the guide plate.

[0014] Furthermore, a downward upper stabilizing plate is provided on the outer side wall of the drill rod support plate, and a vertical lower stabilizing plate is provided at the bottom of the telescopic inner arm. When the drill rod support plate is loading, the upper stabilizing plate and the lower stabilizing plate are in contact and remain stable. The upper stabilizing plate and the lower stabilizing plate are respectively placed on the outside of the upper and lower hinge points of the unloading cylinder.

[0015] Furthermore, feeding mechanisms are respectively provided on both sides of the left end of the catwalk base, and there are no less than two feeding mechanisms. The two feeding mechanisms are spaced apart along the length direction of the catwalk base. The feeding mechanism includes a feeding winch installed on the ground, and a feeding flap is hingedly installed on the outer wall of the catwalk base above the feeding winch. The feeding flap is connected to the feeding winch by a rope for flipping.

[0016] Furthermore, the feed flap is T-shaped, and a longitudinal drill baffle is provided at the end of the cross bar of the feed flap, and a connecting rod is integrally formed at the lower part of the cross bar; a transverse support plate is provided on the outer wall of the catwalk base near the mouth, and the end of the support plate is hinged to the lower end of the connecting rod, and a limit plate is provided on the upper end surface of the support plate. The limit plate is used to incline the connecting rod toward the catwalk base during unloading, and the end of the connecting rod is not lower than the upper end surface of the drill baffle.

[0017] Furthermore, a conveying mechanism installed on the ground is provided on the outside of the feeding mechanism, and the conveying mechanism includes two support frames distributed at intervals, a bearing frame perpendicular to the catwalk base is provided above the support frame, and upward baffles are provided at both ends of the upper end surface of the bearing frame;

[0018] The upper end of the support frame on the feed side close to the catwalk base is hinged to the bottom of the load-bearing frame, and a hydraulic cylinder seat is also installed on the ground outside the support frame away from the catwalk base. A hydraulic cylinder is hingedly installed on the hydraulic cylinder seat, and the upper end of the hydraulic cylinder is hinged to the bottom of the support frame; the installation direction of the conveying mechanism on the unloading side is opposite to that of the feeding side.

[0019] Furthermore, the support frame is formed by I-shaped steel, and straightening plates are installed on the ground at the front and rear sides of both ends of the support frame. The cross-section of the straightening plates is trapezoidal, and the two opposite surfaces of the straightening plates are vertical surfaces.

[0020] The advantages of the utility model are:

[0021] 1. The power catwalk and hydraulic drill rod rack of the utility model have a reasonable and simple structure. The catwalk trolley and the drill rod support plate in the power catwalk are used together. The height of the drilling tool does not exceed the drill rod support plate. The overall structure is similar to a cage structure, which is reasonably lightweight and reduces the load on the power system.

[0022] 2. The utility model uses a power catwalk to transport three drill tools at a time, and one drilling operation takes 3 to 4 minutes. Relatively speaking, the labor cost is reduced and the efficiency is greatly improved.

[0023] 3. The power catwalk of the utility model is suitable for various types of drilling rigs such as water source drilling rigs, oil drilling rigs, and vehicle-mounted drilling rigs. The drilling tools are directly placed on the drill rod support plate and pushed by the catwalk trolley. During actual use, the lifting height and extension length of the catwalk can be adjusted according to the drilling platform height setting.

[0024] 4. The power catwalk of the utility model is highly safe, using hydraulics and motors as power sources, and can be equipped with an automatic control module to automatically raise and lower the drilling tools. Workers on the drilling platform can remotely control the operation of the winch and the lifting of the oil cylinder, so there is no safety risk of drilling tools falling and hitting people, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic diagram of the structure of the telescopic arm of the utility model when it is idle (the feeding mechanism and the conveying mechanism are not shown).

[0026] Figure 2 This is a schematic diagram of the structure of the telescopic arm of the utility model when it is working (the feeding mechanism and the conveying mechanism are not shown).

[0027] Figure 3 It is a cross-sectional view of the installation structure of the telescopic arm and catwalk trolley of the utility model.

[0028] Figure 4 This is a working state diagram of the utility model when conveying and loading on one side.

[0029] Figure 5 This is a working state diagram of the unloader on the other side of the utility model during transportation.

[0030] Figure 6 This is a distribution position diagram of the straightening plates of the conveying structure of the utility model. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] A power catwalk device suitable for safe lifting of various types of drilling rigs, comprising a catwalk base 1 installed at a loading position of a drilling platform A, the catwalk base 1 being trough-shaped, a telescopic arm 2 being arranged inside the catwalk base 1, the telescopic arm 2 comprising a telescopic outer arm 2-1 and a telescopic inner arm 2-2, the left end of the telescopic outer arm 2-1 being hinged to the left side plate of the catwalk base 1, and a lifting cylinder 3 being hingedly installed between the middle section of the bottom of the telescopic outer arm 2-1 and the bottom of the trough of the catwalk base 1;

[0033] The telescopic inner arm 2-2 is slidably installed in the telescopic outer arm 2-1, and a right winch 4 driven by a motor is installed near the right end at the bottom of the catwalk base 1. The rope of the right winch 4 is fixed to the telescopic inner arm 2-2 to drive the telescopic inner arm 2-2 to move;

[0034] A vertical bracket 5 and an obliquely hinged unloading cylinder 6 are provided at the bottom of the telescopic inner arm 2-2. The upper ends of the vertical bracket 5 and the unloading cylinder 6 are hingedly installed on both sides of a V-shaped drill rod support plate 7. A catwalk trolley 8 is slidably installed in the drill rod support plate 7. The catwalk trolley 8 moves in the drill rod support plate through a left winch 9 driven by a motor. The left winch 9 is installed at the left end of the catwalk base 1.

[0035] Furthermore, the bottom of the telescopic outer arm near the right end is hinged to the bottom of the catwalk base groove near the right end through a two-link mechanism 10. The two-link mechanism 10 is folded and hidden between the telescopic outer arm and the catwalk base when the telescopic arm is not in working state. In this way, the retractable two-link mechanism 10 does not occupy space.

[0036] Furthermore, a guide rail 2-1.1 is provided in the middle of the relative inner wall of the telescopic outer arm 2-1, and bearings 2-1.2 are installed at intervals at the corresponding positions of the telescopic inner arm 2-2 and the guide rail 2-1.1. The telescopic inner arm 2-2 is inserted into the bearing from the front end of the telescopic outer arm 2-1 and rolls in the guide rail 2-1. A gap is provided between the outer ring of the bearing and the guide rail to form a rope groove 2-1.3, and the rope of the right winch 4 passes through the rope groove and semi-encloses the telescopic inner arm 2-2, and the end of the rope of the right winch 4 is fixed to the outer wall on the other side of the telescopic inner arm 2-2.

[0037] Furthermore, a gap is provided at the bottom of the V-shaped drill rod support plate 7, the cross-section of the catwalk trolley 8 is V-shaped, a guide plate 8-1 passing through the gap is provided at the bottom of the catwalk trolley, the catwalk trolley 8 is embedded therein, and anti-slip plates 8-2 distributed in a V shape are provided on both sides of the guide plate 8-1; a guide wheel 11 is provided near the right side of the bottom of the drill rod support plate 7, and the rope of the left winch 9 driven by the motor passes through the end of the guide wheel 11 and is fixed to the lower end of the guide plate 8-1.

[0038] Furthermore, a travel limit plate 12 of the catwalk trolley 8 is provided near the middle section of the mouth of the telescopic inner arm 2-2, and the downward extension length of the guide plate 8-1 is lower than the height of the travel limit plate 12. After the catwalk trolley 8 is placed in the drill rod support plate 7, the drill rod is pushed to move in the drill rod support plate 7 through the movement of the catwalk trolley 8.

[0039] Furthermore, a downward upper stabilizing plate 8-3 is provided on the outer side wall of the drill rod support plate 7, and a vertical lower stabilizing plate 8-4 is provided at the bottom of the telescopic inner arm 2-2. When the drill rod support plate 7 is loaded, the upper stabilizing plate 8-3 and the lower stabilizing plate 8-4 are in contact and maintained stable. The upper stabilizing plate 8-3 and the lower stabilizing plate 8-4 are respectively placed on the outer sides of the upper and lower hinge points of the unloading cylinder 6.

[0040] Furthermore, feeding mechanisms 13 are respectively provided on both sides of the left end of the catwalk base 1, and there are no less than two feeding mechanisms (the two feeding mechanisms hold up the drill rod along the extension direction of the catwalk base), and the two feeding mechanisms 13 are spaced apart along the length direction of the catwalk base 1. The feeding mechanism 13 includes a feeding winch 13-1 installed on the ground (also driven by a motor, which is not shown in the figure), and a feeding flap 13-2 is hingedly installed on the outer wall of the catwalk base 1 above the feeding winch 13-1. The feeding flap 13-2 is connected to the feeding winch 13-1 by a rope for flipping (a hydraulic cylinder can also be used as a substitute here).

[0041] Furthermore, the feed flap 13-2 is T-shaped, and a longitudinal drill baffle 13-2.2 is provided at the end of the cross bar 13-2.1 of the feed flap 13-2, and a connecting rod 13-2.3 is integrally formed at the lower part of the cross bar 13-2.1; a transverse support plate 14 is provided on the outer wall of the catwalk base 1 near the mouth, and the end of the support plate 14 is hinged to the lower end of the connecting rod 13-2.3, and a limit plate 15 is provided on the upper end surface of the support plate 14. The limit plate 15 is used to incline the connecting rod toward the catwalk base 1 during unloading, and the end of the connecting rod 13-2.3 is not lower than the upper end surface of the drill baffle 13-2.2.

[0042] Furthermore, the outside of the feeding mechanism is provided with a conveying mechanism 16 installed on the ground, and the conveying mechanism 16 includes two support frames 16-1 distributed at intervals, and a bearing frame 16-2 perpendicular to the catwalk base 1 is provided above the support frame 16-1, and upward baffles 16-3 are provided at both ends of the upper end surface of the bearing frame 16-2 to prevent the drill rod from falling;

[0043] The upper end of the support frame 16-1 on the feed side close to the catwalk base 1 is hinged to the bottom of the load-bearing frame 16-2, and a hydraulic cylinder seat is also installed on the ground outside the support frame 16-1 away from the catwalk base 1, and a hydraulic cylinder 16-4 is hingedly installed on the hydraulic cylinder seat. The upper end of the hydraulic cylinder 16-4 is hinged to the bottom of the support frame 16-1, and the conveying mechanism 16 is a lever structure as a whole; the installation direction of the conveying mechanism on the unloading side is opposite to that of the feeding side.

[0044] Furthermore, the support frame 16-1 is formed by I-shaped steel, and straightening plates 16-5 are installed on the ground at the front and rear sides of both ends of the support frame 16-1. The cross-section of the straightening plate 16-5 is trapezoidal, and the two opposite surfaces of the straightening plate 16-5 are vertical surfaces.

[0045] The utility model can complete the automatic drilling tool raising and lowering, and the specific working process is as follows:

[0046] Working process of drilling tool:

[0047] The drill rods are placed on the conveying mechanism 16 in sequence, the hydraulic cylinder 16-4 rises, the carrier 16-2 forms a slope, and the drill rods roll onto the feeding flap 13-2 of the catwalk under their own weight. The feeding winch 13-1 of the feeding mechanism pulls up the feeding flap 13-2, the drill rods are lifted off the carrier 16-2, and roll onto the V-shaped feeding flap 13-2 of the drill rods.

[0048] The power catwalk lifting cylinder 3 extends out, the telescopic arm 2 is lifted to a certain angle, the electric right winch 4 at the end of the telescopic arm is tightened, and the catwalk trolley 8 pushes the drill rod to move forward to the drilling table in the V-shaped drill rod support plate 7, and the drilling tool raising action is completed.

[0049] Working process of drilling tool:

[0050] The power catwalk telescopic arm 2 completes the lifting and extending action, the catwalk trolley 8 moves to the upper side, the V-shaped drill rod support plate 7 is higher than the drilling table, and the worker puts the drill rod into the V-shaped groove;

[0051] The right winch 4 at the end of the telescopic arm is loosened, and the sliding speed of the drill rod in the drill rod support plate 7 is controlled by the catwalk trolley 8, and the drill rod slides to the end of the drill rod support plate 7;

[0052] The telescopic inner arm drives the drill rod support plate 7 to retract and move downward; the lifting cylinder 3 is retracted, and the telescopic arm is reset;

[0053] The unloading cylinder 6 is lifted, the drill rod support plate 7 is slowly turned over, the hydraulic cylinder 16-4 is lifted, the support frame 16-2 forms a slope, and the drill rod rolls to the end of the support frame 16-2 under its own weight. The unloading cylinder 6 is retracted, the drill rod support plate 7 is reset, and the drilling tool lowering action is completed.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power catwalk device suitable for safe lifting of various types of drilling rigs, comprising a catwalk base installed at the loading position of the drilling platform, characterized in that: The catwalk base is shaped like a groove, and a telescopic arm is arranged inside the catwalk base, the telescopic arm includes a telescopic outer arm and a telescopic inner arm, the left end of the telescopic outer arm is hinged to the left side plate of the catwalk base, and a lifting cylinder is hingedly installed between the middle section of the bottom of the telescopic outer arm and the bottom of the groove of the catwalk base; The telescopic inner arm is slidably installed in the telescopic outer arm, and a right winch driven by a motor is installed near the right end of the bottom of the catwalk base. The right winch rope is fixed to the telescopic inner arm to drive the telescopic inner arm to move; A vertical bracket and an obliquely hinged unloading cylinder are provided at the bottom of the telescopic inner arm. The vertical bracket and the upper end of the unloading cylinder are hingedly installed on both sides of the V-shaped drill rod support plate. A catwalk trolley is slidably installed in the drill rod support plate. The catwalk trolley moves in the drill rod support plate through a left winch driven by a motor, and the left winch is installed at the left end of the catwalk base.

2. The power catwalk device suitable for safe lifting of various types of drilling rigs according to claim 1 is characterized in that: The bottom of the telescopic outer arm near the right end is hinged with the bottom of the catwalk base groove near the right end through a two-link mechanism. The two-link mechanism is folded and hidden between the telescopic outer arm and the catwalk base when the telescopic arm is in a non-working state.

3. The power catwalk device suitable for safe lifting of various types of drilling rigs according to claim 1 is characterized in that: A guide rail is provided in the middle of the inner wall relative to the telescopic outer arm, and bearings are installed at intervals at corresponding positions of the telescopic inner arm and the guide rail. The telescopic inner arm is inserted into the bearing from the front end of the telescopic outer arm and rolls in the guide rail. A gap is provided between the outer ring of the bearing and the guide rail to form a rope groove. The right winch rope passes through the rope groove and semi-encloses the telescopic inner arm, and the end of the right winch rope is fixed to the outer wall on the other side of the telescopic inner arm.

4. The power catwalk device suitable for safe lifting of various types of drilling rigs according to claim 1 is characterized in that: A gap is provided at the bottom of the V-shaped drill rod support plate, the cross-section of the catwalk trolley is V-shaped, a guide plate passing through the gap is provided at the bottom of the catwalk trolley, and anti-slip plates distributed in a V shape are provided on both sides of the guide plate; a guide wheel is provided near the right side of the bottom of the drill rod support plate, and the rope of the left winch driven by the motor passes through the end of the guide wheel and is fixed to the lower end of the guide plate.

5. The power catwalk device suitable for safe lifting of various types of drilling rigs according to claim 4 is characterized in that: A travel limit plate of the catwalk trolley is provided near the middle section of the opening of the telescopic inner arm, and the downward extension length of the guide plate is lower than the height of the travel limit plate.

6. The power catwalk device suitable for safe lifting of various types of drilling rigs according to claim 1 is characterized in that: A downward upper stabilizing plate is provided on the outer side wall of the drill rod support plate, and a vertical lower stabilizing plate is provided at the bottom of the telescopic inner arm. When the drill rod support plate is loaded, the upper stabilizing plate is in contact with the lower stabilizing plate to maintain stability. The upper stabilizing plate and the lower stabilizing plate are respectively placed on the outside of the upper and lower hinge points of the unloading cylinder.

7. The power catwalk device suitable for safe lifting of various types of drilling rigs according to claim 1 is characterized in that: The left end of the catwalk base is provided with feeding mechanisms on both sides, and there are no less than two feeding mechanisms. The two feeding mechanisms are spaced apart along the length direction of the catwalk base. The feeding mechanism includes a winch feeding disk installed on the ground. A feeding flap is hingedly installed on the outer wall of the catwalk base above the feeding winch. The feeding flap is connected to the feeding winch by a rope for flipping.

8. The power catwalk device suitable for safe lifting of various types of drilling rigs according to claim 7 is characterized in that: The feed flap is T-shaped, and a longitudinal drill baffle is provided at the end of the cross bar of the feed flap, and a connecting rod is integrally formed at the lower part of the cross bar; a transverse support plate is provided on the outer wall of the catwalk base near the mouth, and the end of the support plate is hinged to the lower end of the connecting rod, and a limit plate is provided on the upper surface of the support plate. The limit plate is used to incline the connecting rod toward the catwalk base during unloading, and the end of the connecting rod is not lower than the upper surface of the drill baffle.

9. The power catwalk device suitable for safe lifting of various types of drilling rigs according to claim 7 or 8, characterized in that: The outside of the feeding mechanism is provided with a conveying mechanism installed on the ground, the conveying mechanism includes two support frames distributed at intervals, a bearing frame perpendicular to the catwalk base is provided above the support frame, and upward baffles are provided at both ends of the upper end surface of the bearing frame; The upper end of the support frame on the feed side close to the catwalk base is hinged to the bottom of the load-bearing frame, and a hydraulic cylinder seat is also installed on the ground outside the support frame away from the catwalk base. A hydraulic cylinder is hingedly installed on the hydraulic cylinder seat, and the upper end of the hydraulic cylinder is hinged to the bottom of the support frame; the installation direction of the conveying mechanism on the unloading side is opposite to that of the feeding side.

10. The power catwalk device suitable for safe lifting of various types of drilling rigs according to claim 9, characterized in that: The support frame is formed by processing I-shaped steel, and straightening plates are installed on the ground at the front and rear sides of both ends of the support frame. The cross section of the straightening plates is trapezoidal, and the two opposite surfaces of the straightening plates are vertical surfaces.

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