Multifunctional pipe grabbing device

Abstract

The invention relates to the technical field of oil and gas pipeline steel pipe hoisting operation, in particular to a multifunctional pipe grabbing device, and aims to solve the problems that steel pipes shake and fall off when being moved and assembled, and the working efficiency is low. The device comprises a pipe holding assembly, a transverse moving assembly, a swinging assembly and a rotating assembly. The two pipe holding assemblies are installed at the two ends of the transverse moving assembly in a sliding mode and can move in the length direction of the transverse moving assembly. One end of the rotating assembly is connected with the excavator, and the other end is hinged to the transverse moving assembly and used for driving the transverse moving assembly to rotate in the horizontal plane. The other end of the swinging assembly is hinged to the transverse moving assembly; the two swing assemblies are symmetrically arranged on the two sides of the rotating assembly and used for driving the swing assemblies to swing in the vertical plane. Radial pipe loosening and embracing, vertical angle adjustment, rotation and axial moving operation of the steel pipe can be achieved, the problems that when a long-distance pipeline is installed, the steel pipe is difficult to move, and the assembling efficiency is low are solved, and the field construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas pipeline steel pipe hoisting operations, and in particular to a multifunctional pipe grabbing device. Background Art

[0002] In the construction of long-distance pipeline projects, it is often necessary to move and assemble steel pipes. The current construction method used on site is that construction workers use lifting equipment to lift steel pipes using lifting tools, lifting belts or lifting beams. This requires the cooperation of multiple people to lift steel pipes, and the lifting center of gravity of the steel pipes needs to be found during the lifting process. The whole process is time-consuming and labor-intensive. At the same time, there are risks such as lifting tools falling off and steel pipes shaking during lifting. It is especially time-consuming and labor-intensive to move and assemble steel pipes in mountainous areas, and the risks of pipeline installation are greatly increased. That is, when moving and assembling steel pipes, there are problems such as steel pipe shaking, falling off, and low work efficiency. Summary of the invention

[0003] The object of the present invention is to provide a multifunctional pipe grabbing device to solve the problems of shaking and falling off of steel pipes and low working efficiency when moving and assembling steel pipes.

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0005] A multifunctional pipe grabbing device comprises a pipe holding assembly, a transverse movement assembly, a swing assembly and a rotating assembly; two pipe holding assemblies are slidably mounted at both ends of the transverse movement assembly and can move along the length direction of the transverse movement assembly; one end of the rotating assembly is connected to the excavator, and the other end is hinged to the transverse movement assembly, for driving the transverse movement assembly to rotate in a horizontal plane; one end of the swing assembly is hinged to the transverse movement assembly, and the other end is hinged to the transverse movement assembly; two swing assemblies are symmetrically arranged on both sides of the rotating assembly, for driving the swing assembly to swing in a vertical plane.

[0006] Furthermore, the pipe holding assembly includes a clamp fixing frame and a pipe holding clamp, the two pipe holding clamps are symmetrically arranged and one end is hinged to the clamp fixing frame; the two pipe holding clamps swing toward each other to clamp the steel pipe.

[0007] Furthermore, the pipe holding assembly also includes a pipe holding telescopic cylinder, one end of which is hinged to the clamp fixing frame, and the other end of which is hinged to the pipe holding clamp.

[0008] Furthermore, the transverse movement assembly includes a main crossbeam, and the clamp fixing frame is slidably mounted on the main crossbeam.

[0009] Furthermore, the transverse movement assembly also includes a transverse movement unit, which includes a transverse movement seat, a transverse movement telescopic cylinder and a pipe holding seat; one end of the transverse movement telescopic cylinder is hinged to the transverse movement seat, and the other end is hinged to the pipe holding seat; the transverse movement seat is connected to the main beam, and the pipe holding seat is connected to the clamp fixing frame.

[0010] Furthermore, the swing assembly includes an angle adjustment seat and an angle adjustment telescopic cylinder, the angle adjustment seat is hinged to the main beam; one end of the angle adjustment telescopic cylinder is connected to the angle adjustment seat, and the other end is hinged to the rotating assembly.

[0011] Furthermore, the rotating assembly includes a beam connecting frame, the beam connecting frame is hinged to the main beam, and one end of the angle adjustment telescopic cylinder away from the angle adjustment seat is hinged to the beam connecting frame.

[0012] Furthermore, the rotating assembly also includes a slewing frame and a main connecting frame. The slewing frame is rotatably mounted on the main connecting frame and connected to the crossbeam connecting frame to drive the crossbeam connecting frame to rotate in a horizontal plane.

[0013] Furthermore, the rotating assembly also includes a slewing drive cylinder, which is installed on the main connecting frame, and the extended end of the slewing drive cylinder is hinged to the slewing frame; the slewing drive cylinder is extended and retracted to drive the slewing frame to rotate.

[0014] Furthermore, the multifunctional pipe grabbing device also includes a connecting pin, which is inserted into the main connecting frame and the excavator at the same time.

[0015] Based on the above technical solutions, the technical effects that can be achieved by the present invention are:

[0016] The multifunctional pipe grabbing device provided by the present invention comprises a pipe holding assembly, a transverse movement assembly, a swing assembly and a rotating assembly; the two pipe holding assemblies are slidably installed at both ends of the transverse movement assembly and can move along the length direction of the transverse movement assembly; one end of the rotating assembly is connected to the excavator, and the other end is hinged to the transverse movement assembly, which is used to drive the transverse movement assembly to rotate in the horizontal plane; one end of the swing assembly is hinged to the transverse movement assembly, and the other end is hinged to the transverse movement assembly; the two swing assemblies are symmetrically arranged on both sides of the rotating assembly, which are used to drive the swing assembly to swing in the vertical plane.

[0017] The multifunctional pipe grabbing device provided by the present invention grasps the steel pipe through two pipe holding components. The grasping position can be adjusted by moving the pipe holding components and the steel pipe can be driven to move, so that the steel pipe can be kept balanced during the hoisting process, avoiding the problem of shaking and falling off of the steel pipe during movement and assembly, and improving stability. The setting of the transverse movement component, the swing component and the rotation component improves the flexibility of the steel pipe during movement and assembly, and the steel pipe can be kept balanced by adjusting the angle, thereby significantly improving work efficiency. In addition, since the stability of the steel pipe hoisting is greatly improved, the work efficiency is also significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a multifunctional pipe grabbing device provided in an embodiment of the present invention;

[0020] Figure 2 A left side view of a multifunctional pipe grabbing device provided in an embodiment of the present invention.

[0021] Icons: 100- pipe holding assembly; 300- swing assembly; 500- connecting pin; 110- clamp fixing frame; 120- pipe holding clamp; 130- pipe holding telescopic cylinder; 210- main beam; 220- transverse movement unit; 221- transverse movement seat; 222- transverse movement telescopic cylinder; 223- pipe holding seat; 310- angle adjustment seat; 320- angle adjustment telescopic cylinder; 410- beam connecting frame; 420- slewing frame; 430- main connecting frame; 440- slewing drive cylinder; a- steel pipe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0024] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0025] Moving and assembling steel pipes requires the cooperation of multiple people. During the lifting process, the lifting center of gravity of the steel pipe needs to be found. The whole process is time-consuming and labor-intensive. At the same time, there are risks such as the lifting equipment falling off and the steel pipe shaking during lifting. It is especially time-consuming and labor-intensive to move and assemble steel pipes in mountainous areas, and the risk of pipeline installation is also greatly increased.

[0026] In view of this, the present invention provides a multifunctional pipe grasping device, including a pipe holding assembly 100, a transverse movement assembly, a swing assembly 300 and a rotating assembly; two pipe holding assemblies 100 are slidably installed at both ends of the transverse movement assembly and can move along the length direction of the transverse movement assembly; one end of the rotating assembly is connected to the excavator, and the other end is hinged to the transverse movement assembly, which is used to drive the transverse movement assembly to rotate in the horizontal plane; one end of the swing assembly 300 is hinged to the transverse movement assembly, and the other end is hinged to the transverse movement assembly; the two swing assemblies 300 are symmetrically arranged on both sides of the rotating assembly, which are used to drive the swing assembly 300 to swing in the vertical plane.

[0027] The multifunctional pipe grabbing device provided by the present invention uses two pipe holding assemblies 100 to hold the steel pipe a firmly. The movement of the pipe holding assembly 100 can adjust the gripping position and drive the steel pipe a to move, so that the steel pipe a can be kept balanced during the hoisting process, avoiding the problem of shaking and falling off of the steel pipe a during movement and assembly, and improving stability. The arrangement of the transverse movement assembly, the swing assembly 300 and the rotation assembly improves the flexibility of the steel pipe a during movement and assembly, and can keep the steel pipe a balanced by adjusting the angle, thereby significantly improving work efficiency. In addition, since the stability of the hoisting of the steel pipe a is greatly improved, the work efficiency is also significantly improved.

[0028] The following combination Figure 1 , Figure 2 The structure and shape of the multifunctional pipe grabbing device provided in this embodiment are described in detail:

[0029] In this embodiment, the pipe clamp assembly 100 includes a clamp fixing frame 110, a pipe clamp 120 and a pipe clamp telescopic cylinder 130. The two pipe clamps 120 are symmetrically arranged, and one end of the pipe clamp 120 is hinged to the clamp fixing frame 110; one end of the pipe clamp telescopic cylinder 130 is hinged to the clamp fixing frame 110, and the other end is hinged to the pipe clamp 120. Specifically, one pipe clamp telescopic cylinder 130 is connected to one pipe clamp 120, and the pipe clamp telescopic cylinder 130 is extended to drive the pipe clamp 120 to swing, thereby clamping or loosening the steel pipe aa. In order to ensure the clamping force, the pipe clamp telescopic cylinder 130 uses a hydraulic cylinder.

[0030] In this embodiment, the transverse movement assembly includes a main crossbeam 210 and a transverse movement unit 220, one end of the transverse movement unit 220 is connected to the main crossbeam 210, and the other end is connected to the clamp fixing frame 110. Specifically, the clamp fixing frame 110 is slidably mounted on the main crossbeam 210, and two transverse movement units 220 are provided to be respectively connected to the two pipe holding assemblies 100, and are used to respectively drive the two pipe holding assemblies 100 to move along the length direction of the main crossbeam 210.

[0031] Furthermore, the lateral movement unit 220 includes a lateral movement seat 221, a lateral movement telescopic cylinder 222 and a pipe holding seat 223; one end of the lateral movement telescopic cylinder 222 is hinged to the lateral movement seat 221, and the other end is hinged to the pipe holding seat 223; the lateral movement seat 221 is connected to the main crossbeam 210, and the pipe holding seat 223 is connected to the clamp fixing frame 110. The lateral movement telescopic cylinder 222 is extended and retracted to drive the clamp fixing frame 110 to move along the length direction of the main crossbeam 210. In this embodiment, in order to ensure the clamping force, the lateral movement telescopic cylinder 222 is a hydraulic cylinder.

[0032] In this embodiment, a rectangular hole is provided on the clamp fixing frame 110, and the main crossbeam 210 is inserted into the rectangular hole to achieve sliding connection. In order to make the clamp fixing frame 110 slide smoothly, a linear guide rail can be arranged between the clamp fixing frame 110 and the main crossbeam 210. The guide rail part of the linear guide rail is installed on the main crossbeam 210, and the slider is connected to the front fixing frame. Specifically, the linear guide rail can be installed on the upper surface and side of the main crossbeam 210 to ensure good force.

[0033] In this embodiment, the swing assembly 300 includes an angle adjustment seat 310 and an angle adjustment telescopic cylinder 320, wherein the angle adjustment seat 310 is hinged to the main beam 210, one end of the angle adjustment telescopic cylinder 320 is connected to the angle adjustment seat 310, and the other end is hinged to the rotating assembly. When the angle adjustment telescopic cylinder 320 is extended or retracted, it can drive the main beam 210 to swing. Similarly, the angle adjustment telescopic cylinder 320 uses a hydraulic cylinder to ensure driving force and stability.

[0034] In this embodiment, two swing assemblies 300 are provided, and the two swing assemblies 300 are symmetrically arranged on both sides of the rotating assembly. When the main beam 210 needs to be swung, the angle adjustment telescopic cylinders 320 in the two swing assemblies 300 are extended and retracted to complete the swing and ensure the stability of the main beam 210 to avoid shaking.

[0035] In this embodiment, the rotating assembly includes a beam connecting frame 410, a rotating frame 420, a main connecting frame 430 and a rotating drive cylinder 440. The beam connecting frame 410 is hinged to the main beam 210 to ensure that the main beam 210 can swing in a vertical plane, that is, the hinge axis of the two is horizontally arranged and perpendicular to the main beam 210; the end of the angle adjustment telescopic cylinder 320 away from the angle adjustment seat 310 is hinged to the beam connecting frame 410. The rotating frame 420 is rotatably installed on the main connecting frame 430 and connected to the beam connecting frame 410, and the rotating drive cylinder 440 is installed on the main connecting frame 430, and the extended end of the rotating drive cylinder 440 is hinged to the rotating frame 420; the rotating drive cylinder 440 is telescopic to drive the rotating frame 420 to rotate in a horizontal plane.

[0036] In order to ensure that the rotary drive cylinder 440 drives the rotary frame 420 to rotate, the rotary drive cylinder 440 can swing horizontally. That is, the rotating assembly also includes an articulated frame, and the rotary drive cylinder 440 is installed on the main connecting frame 430 through the articulated frame. In short, the rotary drive cylinder 440 is installed on the articulated frame, and the articulated frame is hinged to the main connecting frame 430, and its hinge axis is vertically arranged. Similarly, in order to ensure stable driving, the rotary drive cylinder 440 is set as a hydraulic cylinder.

[0037] To ensure that the rotating frame 420 rotates smoothly, a thrust bearing may be provided between the rotating frame 420 and the main connecting frame 430. The thrust bearing is provided below the rotating frame 420 to support the rotating frame 420 and reduce the rotation resistance of the rotating frame 420.

[0038] In this embodiment, the multifunctional pipe grabbing device further includes a connecting pin 500, which is inserted into the main connecting frame 430 and the excavator at the same time to fix the functional pipe grabbing device on the excavator.

[0039] The working process of the multifunctional pipe grabbing device provided in this embodiment is as follows:

[0040] After all components are connected, the multifunctional hydraulic pipe gripping device is installed on the corresponding excavator and connected to the hydraulic system. During operation, the hydraulic system is operated to drive the pipe gripping telescopic cylinder 130, the lateral telescopic cylinder 222, the angle adjustment telescopic cylinder 320 and the rotary drive cylinder 440 to complete various actions. Specifically, when the pipe gripping telescopic cylinder 130 is extended, the two pipe gripping clamps 120 can be brought close to each other to clamp the steel pipe a. Figure 2 As shown, the radial clamping of the steel pipe a is completed; when the steel pipe a needs to be loosened, the pipe clamping telescopic cylinder 130 is retracted, thereby driving the two pipe clamping pliers 120 away from each other.

[0041] The extension and retraction of the transverse telescopic cylinder 222 can drive the pipe holding assembly 100 to move along the length direction of the main beam 210, thereby adjusting the position of the pipe holding assembly 100 to clamp the steel pipe a, making the clamping position reasonable, ensuring the balance of the steel pipe a, avoiding the instability and falling of the steel pipe a caused by the deviation of the center of gravity, and ensuring the work efficiency and work safety. At the same time, the synchronous movement of the transverse telescopic cylinder 222 can drive the pipe holding assembly 100 to move synchronously, thereby driving the steel pipe a to move along the length direction of the main beam 210.

[0042] The extension or retraction of the angle adjustment cylinder can drive the main crossbeam 210 to swing up and down in the vertical plane, thereby achieving the angle adjustment of the steel pipe a, facilitating the movement and assembly of the steel pipe a, and improving the passability. The extension and retraction of the rotary drive cylinder 440 can drive the rotary frame 420 to rotate in the horizontal plane, thereby driving the main crossbeam 210 to rotate in the horizontal plane, thereby achieving the rotation of the steel pipe a.

[0043] That is, by adjusting the pipe-holding telescopic cylinder 130, the transverse telescopic cylinder 222, the angle-adjusting telescopic cylinder 320 and the rotary drive cylinder 440, the steel pipe a can be held and loosened, the upper and lower angles of the steel pipe a can be adjusted, the steel pipe a can be rotated, and the steel pipe a can be moved along the length direction of the main beam 210, thereby providing a guarantee for improving the efficiency of the lifting operation of the steel pipe a. The lifting center of gravity of the steel pipe a can be quickly adjusted to prevent it from falling off or shaking. In particular, the multi-directional movement capability can greatly facilitate the movement and assembly of the steel pipe a and reduce labor intensity and risks.

[0044] The multifunctional pipe grabbing device provided in this embodiment is a mechanical claw with high safety and multi-degree-of-freedom adjustment. Through the control of the hydraulic system, it can realize radial loosening, up and down angle adjustment, rotation and axial movement of the steel pipe a, solving the problems of difficult movement of the steel pipe a and low assembly efficiency during the installation of long-distance pipelines, reducing the risk of on-site operations and improving on-site construction efficiency.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional pipe grabbing device, characterized in that: It comprises a pipe holding assembly (100), a transverse movement assembly, a swing assembly (300) and a rotation assembly; The two pipe holding assemblies (100) are slidably mounted at two ends of the transverse movement assembly and can move along the length direction of the transverse movement assembly; One end of the rotating assembly is connected to the excavator, and the other end is hinged to the transverse moving assembly, so as to drive the transverse moving assembly to rotate in a horizontal plane; One end of the swing component (300) is hinged to the transverse movement component, and the other end is hinged to the transverse movement component; the two swing components (300) are symmetrically arranged on both sides of the rotating component, and are used to drive the swing components (300) to swing in a vertical plane.

2. The multifunctional pipe grabbing device according to claim 1, characterized in that: The pipe holding assembly (100) comprises a clamp fixing frame (110) and a pipe holding clamp (120), wherein the two pipe holding clamps (120) are symmetrically arranged and one end of the pipe holding clamps is hinged to the clamp fixing frame (110); The two pipe clamps (120) swing towards each other to clamp the steel pipe (a).

3. The multifunctional pipe grabbing device according to claim 2, characterized in that: The pipe holding assembly (100) further comprises a pipe holding telescopic cylinder (130), one end of the pipe holding telescopic cylinder (130) being hinged to the clamp fixing frame (110) and the other end being hinged to the pipe holding clamp (120).

4. The multifunctional pipe grabbing device according to claim 3, characterized in that: The transverse movement assembly comprises a main crossbeam (210), and the clamp fixing frame (110) is slidably mounted on the main crossbeam (210).

5. The multifunctional pipe grabbing device according to claim 4, characterized in that: The transverse movement assembly further comprises a transverse movement unit (220), and the transverse movement unit (220) comprises a transverse movement seat (221), a transverse movement telescopic cylinder (222) and a pipe holding seat (223); One end of the transverse telescopic cylinder (222) is hinged to the transverse seat (221), and the other end is hinged to the pipe holding seat (223); The transverse shift seat (221) is connected to the main crossbeam (210), and the pipe holding seat (223) is connected to the clamp fixing frame (110).

6. The multifunctional pipe grabbing device according to claim 5, characterized in that: The swing assembly (300) comprises an angle adjustment seat (310) and an angle adjustment telescopic cylinder (320), wherein the angle adjustment seat (310) is hinged to the main crossbeam (210); one end of the angle adjustment telescopic cylinder (320) is connected to the angle adjustment seat (310), and the other end is hinged to the rotating assembly.

7. The multifunctional pipe grabbing device according to claim 6, characterized in that: The rotating assembly comprises a crossbeam connecting frame (410), the crossbeam connecting frame (410) is hinged to the main crossbeam (210), and one end of the angle adjustment telescopic cylinder (320) away from the angle adjustment seat (310) is hinged to the crossbeam connecting frame (410).

8. The multifunctional pipe grabbing device according to claim 7, characterized in that: The rotating assembly further comprises a slewing frame (420) and a main connecting frame (430). The slewing frame (420) is rotatably mounted on the main connecting frame (430) and connected to the crossbeam connecting frame (410) to drive the crossbeam connecting frame (410) to rotate in a horizontal plane.

9. The multifunctional pipe grabbing device according to claim 8, characterized in that: The rotating assembly further comprises a rotary drive cylinder (440), wherein the rotary drive cylinder (440) is mounted on the main connecting frame (430), and an extended end of the rotary drive cylinder (440) is hinged to the rotary frame (420); The rotary drive cylinder (440) is retracted to drive the rotary frame (420) to rotate.

10. The multifunctional pipe grabbing device according to claim 9, characterized in that: It also includes a connecting pin (500), and the connecting pin (500) is inserted into the main connecting frame (430) and the excavator at the same time.

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