CN215485928U

CN215485928U - Fixed power catwalk

Info

Publication number: CN215485928U
Application number: CN202121783132.8U
Authority: CN
Inventors: 任得勇; 曲殿君; 魏双会; 朱凯旋; 吴鹏; 张鑫
Original assignee: Lanzhou Ls Petroleum Equipment Engineering Co ltd
Current assignee: Lanzhou Ls Petroleum Equipment Engineering Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-01-11
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a fixed power catwalk which comprises a horizontal main body assembly, wherein a truss structure is arranged at the bottom of the main body assembly, a V-shaped groove is formed above the truss structure, channel steel is arranged on two sides of the V-shaped groove, rollers are arranged at the front end of the V-shaped groove, a trolley assembly is arranged in the V-shaped groove body and comprises a main body and wheels arranged on two sides of the main body, chains are connected to the wheels and connected with a driving system arranged at the rear end of the truss structure, and a four-connecting-rod centering and buckling mechanical arm is hinged to the side wall of the front end of the truss structure. The four-connecting-rod centering and buckling mechanical arm is arranged to realize the function of remotely centering and buckling the drill rod, the trolley is moved to convey the drill rod through motor driving and chain transmission, the complexity of a driving system is simplified by replacing a hydraulic system, automatic conveying of the drill rod is realized in the whole process, the structure is compact, the installation and the disassembly are convenient, and the operation is easy.

Description

Fixed power catwalk

Technical Field

The utility model relates to the technical field of oil and gas drilling, in particular to a fixed power catwalk.

Background

The drilling pipe needs to be conveyed to a wellhead from a pipe yard in the offshore oil drilling work, continuous operation is realized, time and labor are wasted in manual pipe conveying treatment, a power catwalk needs to be used for replacing manual conveying operation, the automatic centralizing and buckling function is realized, a hydraulic driving system, a trolley, a lifting mechanism and a centralizing mechanism are installed on a modern power catwalk, the hydraulic driving system drives the trolley to push a drilling rod to the wellhead, the front end of the drilling rod is lifted through the lifting mechanism, the pipe is hoisted by matching with a pipe exhauster or a top drive, and finally the pipe is aligned to the wellhead through the centralizing mechanism, wherein the hydraulic driving system and the lifting mechanism are indispensable structures in the conventional power catwalk, but the complexity and the weight of the catwalk machine are increased, a hydraulic execution element and a hydraulic pipeline need to be installed, and the equipment installation and maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fixed power catwalk to solve the defects that a hydraulic driving system and a lifting mechanism are required to be installed when a traditional power catwalk is used, the structure is complex, and the manufacturing and maintenance costs are high.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a fixed power catwalk, includes the main part assembly of horizontal connection on the rig floor, main part assembly bottom is provided with truss structure, and truss structure top is provided with the V-arrangement groove, and the both sides in V-arrangement groove are provided with the channel-section steel, the front end is provided with the roller, are provided with the dolly assembly in the V-arrangement groove cell body, and the dolly assembly includes the main part and sets up the wheel in the main part both sides, be connected with the chain on the wheel, the chain is connected with the actuating system who installs at truss structure rear end, it rights the butt joint arm to articulate on the truss structure front end lateral wall to have four connecting rods.

Preferably, the four-bar linkage centering and buckling mechanical arm comprises a lower centering arm and an upper centering arm which are hinged with each other, the lower end of the lower centering arm is hinged to the truss structure, the rear end of the lower centering arm is hinged to a rear hydraulic cylinder, the lower end of the rear hydraulic cylinder is hinged to the truss structure, the front end of the lower centering arm is hinged to a front hydraulic cylinder, the lower end of the front hydraulic cylinder is hinged to the truss structure, the upper end of the front hydraulic cylinder is hinged to the upper centering arm, the front end of the upper centering arm is hinged to a roller assembly, and the front end of the upper centering arm is hinged to a roller blocking assembly.

Preferably, the rear end of the roller assembly is hinged with a roller assembly hydraulic cylinder, and the rear end of the roller assembly hydraulic cylinder is hinged on the upper righting arm.

Preferably, the front end of the roller blocking assembly is hinged with a roller blocking assembly hydraulic cylinder, and the rear end of the roller blocking assembly hydraulic cylinder is hinged to the upper righting arm.

Preferably, the driving system comprises a hydraulic motor mounting seat mounted at the rear end of the truss structure, a hydraulic motor reducer is mounted at one end of the hydraulic motor mounting seat, a rear chain wheel is mounted on an output shaft at the other end of the hydraulic motor mounting seat, the rear chain wheel is connected with a front chain wheel mounted at the front end of the truss structure through a chain, and a cantilever rotating shaft is mounted at the outer end of the front chain wheel.

The using process of the utility model is as follows:

when a drill rod needs to be sent into a wellhead, the rear end of the drill rod is placed in a V-shaped groove in a main body assembly, the front end of the drill rod is placed on a roller at the front end of the main body assembly, a driving system drives a trolley assembly to push the drill rod forwards, when the front end of the drill rod reaches the position of the wellhead, a top drive elevator lifts the front end of the drill rod, after the drill rod is lifted, a rear hydraulic cylinder extends to drive the four-connecting-rod centering and buckling mechanical arm to integrally drive the four-connecting-rod centering and buckling mechanical arm forwards, a roller component hydraulic cylinder extends to swing a roller component to be vertical to the position of an upper centering arm, a front hydraulic cylinder extends to swing the upper centering arm upwards around a lower centering arm, the roller component is swung to lift the drill rod and separate the lower end of the drill rod from the V-shaped groove, meanwhile, the top drive continues to lift the drill rod to a specified height, a rod blocking component hydraulic cylinder contracts to swing the rod blocking component to the position for clamping the drill rod, then the front hydraulic cylinder contracts to swing the upper centering arm to be horizontal position around the lower centering arm, the extension of back hydraulic cylinder is aimed at the well head with the drilling rod lower extreme, then drives on the top and transfers the drilling rod and make-up, and the back roller subassembly and fender rod subassembly reset respectively after the make-up is accomplished, and the shrink of back hydraulic cylinder is right the whole reset of make-up arm of making-up with four connecting rods this moment, and the drilling rod moves the fortune operation and is accomplished.

The utility model has the beneficial effects that:

(1) according to the utility model, the four-connecting-rod centering and buckling mechanical arm is arranged at the front end of the catwalk, so that the function of remotely centering and buckling the drill rod is realized, and the problem that the front end of the catwalk is too far away from a wellhead and cannot be buckled is solved.

(2) The four-connecting-rod righting and buckling mechanical arm is stable and reliable in operation, and avoids the catwalk and the drill floor surface from being provided with a mobile system, so that the complexity of catwalk and drill floor surface equipment is reduced, and the weight of drill floor surface equipment is reduced.

(3) The drill rod conveying device has the advantages that the drill rod is conveyed by the movable trolley driven by the motor and driven by the chain, a hydraulic system is replaced, the complexity of the driving system is simplified, and the installation and maintenance cost of the device is reduced.

(4) The whole process of moving and centering and butting the drill rod is completed by the movable trolley and the four-connecting-rod centering and butting mechanical arm, the structure is compact, the installation and the disassembly are convenient, the operation is easy, the manual operation is not needed in the whole process, and the automation degree is high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a four-bar linkage centering and buckling robot arm;

FIG. 3 is an enlarged view of a rear end portion of the present invention;

FIG. 4 is an enlarged partial front end view of the present invention;

FIG. 5 is a schematic structural diagram of a cantilever rotating shaft in a driving system;

FIG. 6 is a schematic view of the movement of the drill rod in the V-groove;

FIG. 7 is a schematic view of the four-bar linkage centralizing make-up robot arm lifting the drill rod;

FIG. 8 is a schematic view of a four-bar linkage centering make-up robot arm centering and making-up a drill pipe.

In the figure: 1-four-bar link centralizing and buckling mechanical arm, 101-roller component, 102-roller component hydraulic cylinder, 103-baffle roller component hydraulic cylinder, 104-baffle roller component, 105-upper centralizing arm, 106-lower centralizing arm, 107-front hydraulic cylinder, 108-rear hydraulic cylinder, 2-main body assembly, 201-truss structure, 202-V-shaped groove, 203-channel steel, 204-roller, 3-trolley assembly, 301-main body, 302-wheel, 4-driving system, 401-hydraulic motor reducer, 402-hydraulic motor mounting seat, 403-rear chain wheel, 404-front chain wheel, 405-cantilever rotating shaft, 5-drill rod and 6-well head.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A fixed power catwalk as shown in fig. 1-8, characterized in that: including horizontal connection main part assembly 2 on the rig floor, 2 bottoms of main part assembly are provided with truss structure 201, and truss structure 201 top is provided with V-arrangement groove 202, and the both sides of V-arrangement groove 202 are provided with channel-section steel 203, front end and are provided with roller 204, are provided with dolly assembly 3 in the V-arrangement groove 202 cell body, and dolly assembly 3 includes main part 301 and sets up the wheel 302 in main part 301 both sides, be connected with the chain on the wheel 302, the chain is connected with the actuating system 4 of installing at truss structure 201 rear end, it rights right the left-hand thread arm 1 to articulate on the truss structure 201 front end lateral wall.

The four-link centering and buckling mechanical arm 1 comprises a lower centering arm 106 and an upper centering arm 105 which are hinged with each other, the lower end of the lower centering arm 106 is hinged on a truss structure 201, the rear end of the lower centering arm 106 is hinged with a rear hydraulic cylinder 108, the lower end of the rear hydraulic cylinder 108 is hinged on the truss structure 201, the front end of the lower centering arm 106 is hinged with a front hydraulic cylinder 107, the lower end of the front hydraulic cylinder 107 is hinged with the truss structure 201, the upper end of the front hydraulic cylinder 107 is hinged with the upper centering arm 105, the front end of the upper centering arm 105 is hinged with a roller assembly 101, the front end of the upper centering arm 105 is also hinged with a roller blocking assembly 104, the rear end of the roller assembly 101 is hinged with a roller assembly hydraulic cylinder 102, the rear end of the roller assembly hydraulic cylinder 102 is hinged on the upper centering arm 105, the front end of the roller blocking assembly 104 is hinged with a roller blocking assembly hydraulic cylinder 103, and the rear end of the roller blocking assembly hydraulic cylinder 103 is hinged on the upper centering arm 105.

The driving system 4 comprises a hydraulic motor mounting seat 402 installed at the rear end of the truss structure 201, a hydraulic motor reducer 401 is installed at one end of the hydraulic motor mounting seat 402, a rear chain wheel 403 is installed on an output shaft at the other end of the hydraulic motor mounting seat, the rear chain wheel 403 is connected with a front chain wheel 404 installed at the front end of the truss structure 201 through a chain, and a cantilever rotating shaft 405 is installed at the outer end of the front chain wheel 404.

The use process of the utility model is as follows:

when a drill rod 5 needs to be sent into a wellhead, the rear end of the drill rod 5 is placed in a V-shaped groove 202 in a main body assembly 2, the front end of the drill rod 5 is placed on a roller 204 at the front end of the main body assembly 2, then a driving system 4 drives a trolley assembly 3 to push the drill rod 5 forwards, when the front end of the drill rod 5 reaches a wellhead position 6, a top drive elevator lifts the front end of the drill rod 5, after the drill rod 5 is lifted, a rear hydraulic cylinder 108 extends to drive the whole four-bar centering and buckling mechanical arm 1 forwards, a roller assembly hydraulic cylinder 102 extends to swing a roller assembly 101 to a position vertical to an upper centering arm 105, a front hydraulic cylinder 107 extends to swing the upper centering arm 105 upwards around a lower centering arm 106, the roller assembly 101 is swung to lift the drill rod 5 and the lower end of the drill rod 5 is separated from the V-shaped groove, meanwhile, the top drive continues to lift the drill rod 5 to a specified height, a blocking roller assembly hydraulic cylinder 103 retracts to swing a blocking rod assembly 104 to a position clamping the drill rod 5, and then the front hydraulic cylinder 107 contracts to swing the upper centering arm 105 to a horizontal position around the lower centering arm 106, the rear hydraulic cylinder 108 extends to align the lower end of the drill rod 5 with the wellhead, then the drill rod 5 is driven to be lowered by a top drive and buckled, the roller assembly 101 and the blocking roller assembly 103 reset respectively after buckling is completed, at the moment, the rear hydraulic cylinder 108 contracts to reset the whole four-link centering and buckling mechanical arm, and the moving operation of the drill rod 5 is completed.

The four-connecting-rod righting and buckling mechanical arm is arranged at the front end of the catwalk, so that the function of righting and buckling the drill rod remotely is realized, the problem that the front end of the catwalk is too far away from a wellhead and cannot be buckled is solved, the four-connecting-rod righting and buckling mechanical arm is stable and reliable in operation, and a mobile system is prevented from being installed on the catwalk and a drill floor, so that the complexity of catwalk and drill floor equipment is reduced, the weight of the drill floor equipment is reduced, the whole process of moving the drill rod and righting and buckling is completed by the mobile trolley and the four-connecting-rod righting and buckling mechanical arm, the structure is compact, the installation and the disassembly are convenient, the operation is easy, the whole process does not need manual operation, and the automation degree is high.

Claims

1. The utility model provides a fixed power catwalk which characterized in that: including horizontal connection main part assembly (2) on the rig floor, main part assembly (2) bottom is provided with truss structure (201), and truss structure (201) top is provided with V-arrangement groove (202), and the both sides of V-arrangement groove (202) are provided with channel-section steel (203), the front end is provided with roller (204), is provided with dolly assembly (3) in V-arrangement groove (202) cell body, and dolly assembly (3) include main part (301) and set up wheel (302) in main part (301) both sides, be connected with the chain on wheel (302), the chain is connected with actuating system (4) of installing at truss structure (201) rear end, it rights butt-buckling arm (1) to articulate on truss structure (201) front end lateral wall has four connecting rods.

2. The stationary power catwalk of claim 1, wherein: the four-connecting-rod righting and buckling mechanical arm (1) comprises a lower righting arm (106) and an upper righting arm (105) which are hinged to each other, the lower end of the lower righting arm (106) is hinged to a truss structure (201), the rear end of the lower righting arm (106) is hinged to a rear hydraulic cylinder (108), the lower end of the rear hydraulic cylinder (108) is hinged to the truss structure (201), the front end of the lower righting arm (106) is hinged to a front hydraulic cylinder (107), the lower end of the front hydraulic cylinder (107) is hinged to the truss structure (201), the upper end of the front hydraulic cylinder is hinged to the upper righting arm (105), the front end of the upper righting arm (105) is hinged to a roller component (101), and the front end of the upper righting arm (105) is hinged to a blocking roller component (104).

3. The stationary power catwalk of claim 2, wherein: the rear end of the roller assembly (101) is hinged with a roller assembly hydraulic cylinder (102), and the rear end of the roller assembly hydraulic cylinder (102) is hinged on an upper righting arm (105).

4. A stationary power catwalk according to claim 2 or 3, wherein: the front end of the roller blocking assembly (104) is hinged with a roller blocking assembly hydraulic cylinder (103), and the rear end of the roller blocking assembly hydraulic cylinder (103) is hinged on the upper centering arm (105).

5. The stationary power catwalk of claim 4, wherein: the driving system (4) comprises a hydraulic motor mounting seat (402) mounted at the rear end of the truss structure (201), a hydraulic motor reducer (401) is mounted at one end of the hydraulic motor mounting seat (402), a rear chain wheel (403) is mounted on an output shaft at the other end of the hydraulic motor mounting seat, the rear chain wheel (403) is connected with a front chain wheel (404) mounted at the front end of the truss structure (201) through a chain, and a cantilever rotating shaft (405) is mounted at the outer end of the front chain wheel (404).