Gas-liquid linkage pipe grabbing device

Abstract

The invention relates to the technical field of steel pipe hoisting equipment, in particular to a gas-liquid linkage pipe grabbing device which comprises a first connecting frame connected to an excavator and further comprises a vacuum suction pipe frame connected to the lower portion of the first connecting frame; the two hydraulic pipe holding tong assemblies are arranged at the two ends of the vacuum suction pipe rack respectively; the vacuum suction pipe rack grabs the stacked steel pipes by means of negative pressure adsorption; the hydraulic pipe holding clamp assembly is used for clamping a steel pipe grabbed by the vacuum suction pipe rack; when the device grabs stacked steel pipes, after the vacuum suction pipe frame grabs the steel pipes, the excavator controls the vacuum suction pipe frame to drive the steel pipes to lift the steel pipes, so that initial pipe grabbing operation is completed, after the steel pipes are lifted to a proper height, the hydraulic pipe holding clamp assembly firmly clamps the steel pipes, and pipe holding operation on the steel pipes is completed; and therefore, the steel pipe cannot fall off due to vibration generated when the excavator drives the steel pipe to move, and the hoisting safety of the steel pipe is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe hoisting equipment, in particular to a gas-liquid linkage pipe grabbing device. Background Art

[0002] The lifting of oil and gas pipeline steel pipes in general areas is usually carried out by conventional lifting equipment in the industry, such as cranes and pipelayers. However, in some special areas, such as mountainous areas with a certain slope, excavators are required to lift large-diameter steel pipes. At present, the back hook of the excavator is used for lifting large-diameter steel pipes, which poses a great safety hazard.

[0003] There are excavator-based vacuum pipe suckers and excavator-based hydraulic pipe grabbers in the industry, both of which can suck or grab steel pipes. However, these two methods of lifting steel pipes have certain defects in actual use: the excavator-based vacuum pipe sucker has large vibrations in the working state, which makes it difficult to ensure the safety of steel pipe lifting; the excavator-based hydraulic pipe grabber cannot perform the initial pipe grabbing action due to the stacking form of the steel pipes. Summary of the invention

[0004] The present invention provides a gas-liquid linkage pipe grabbing device to solve the problem that a vacuum pipe suction device based on an excavator has large vibrations in a working state and is difficult to ensure the safety of steel pipe lifting; and a hydraulic pipe grabber based on an excavator cannot perform the initial pipe grabbing action due to the stacking form of the steel pipes.

[0005] In order to alleviate the above technical problems, the technical solution provided by the present invention is:

[0006] A gas-liquid linkage pipe grabbing device includes a first connecting frame connected to an excavator, and also includes: a vacuum pipe rack connected to the lower part of the first connecting frame; two hydraulic pipe clamp assemblies, respectively arranged at both ends of the vacuum pipe rack; the vacuum pipe rack relies on negative pressure adsorption to grab stacked steel pipes; the hydraulic pipe clamp assembly is used to clamp the steel pipe grabbed by the vacuum pipe rack.

[0007] Furthermore, the device also includes: a rotating frame connected to the lower part of the first connecting frame; a second connecting frame connected to the lower part of the rotating frame; a main beam arranged at the lower part of the second connecting frame; an adjusting frame seat connected to the side wall of the main beam; an adjusting cylinder, both ends of which are respectively hinged to the adjusting frame seat and the second connecting frame; and a connecting piece is also connected to the side wall of the main beam and is connected to the vacuum tube frame through the connecting piece.

[0008] Furthermore, the connecting member includes: a first connecting seat connected to the main beam; a second connecting seat connected to the vacuum pipe rack; and a connecting ring, with two ends respectively connected to the first connecting seat and the second connecting seat.

[0009] Furthermore, two adjusting cylinders are provided, and the two adjusting cylinders are symmetrically connected between the second connecting frame and the adjusting frame seat; the two adjusting cylinders can drive the main beam to rise and fall vertically by synchronous extension and contraction; the two adjusting cylinders can drive the main beam to tilt by contracting separately.

[0010] Furthermore, the hydraulic pipe clamp assembly includes: a third connecting frame, connected to the end of the main crossbeam; two clamp bodies, symmetrically hinged to the two sides of the third connecting frame; two hydraulic rods, whose two ends are respectively hinged to the third connecting frame and the clamp bodies; the two hydraulic rods synchronously extend and retract to drive the two clamp bodies to move closer or farther, so that the hydraulic pipe clamp assembly clamps and releases the steel pipe.

[0011] Furthermore, two third connecting frames are provided, and the two third connecting frames are respectively fixedly connected to two ends of the main cross beam.

[0012] Furthermore, the rotating frame includes a first connecting part and a second connecting part, the first connecting part can rotate axially relative to the second connecting part; the first connecting part is connected to the first connecting frame, and the second connecting part is connected to the second connecting frame; a rotating cylinder is connected to the rotating frame, and the rotating cylinder is used to drive the first connecting part of the rotating frame to rotate axially relative to the second connecting part.

[0013] Furthermore, it also includes a connecting pin, which is plugged into the first connecting frame and the excavator to connect the first connecting frame to the excavator.

[0014] Furthermore, the vacuum pipe rack is connected to a pneumatic system of an excavator.

[0015] Furthermore, the hydraulic pipe clamp assembly, the adjusting cylinder and the rotating cylinder are all connected to the hydraulic system of the excavator.

[0016] The beneficial effects of the present invention are analyzed as follows:

[0017] A gas-liquid linkage pipe grabbing device comprises a first connecting frame connected to an excavator, and further comprises:

[0018] A vacuum pipette rack connected to the lower part of the first connecting rack;

[0019] Two hydraulic pipe clamp assemblies are respectively arranged at both ends of the vacuum pipe rack;

[0020] The vacuum pipe rack relies on negative pressure adsorption to grab the stacked steel pipes;

[0021] The hydraulic pipe clamp assembly is used to clamp the steel pipe grabbed by the vacuum pipe rack.

[0022] When grabbing the stacked steel pipes, first place the vacuum pipe rack on the upper part of the steel pipe to be hoisted. After the vacuum pipe rack grabs the steel pipe, the excavator controls the vacuum pipe rack to drive the steel pipe to lift the steel pipe, thereby completing the initial pipe grabbing operation. After the steel pipe is lifted to a suitable height, the hydraulic pipe clamp assembly clamps the steel pipe firmly, thereby completing the pipe holding operation of the steel pipe, so that the steel pipe is clamped firmly, so that the vibration generated when the excavator drives the steel pipe to move will not cause the steel pipe to fall, thereby ensuring the safety of the steel pipe lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are 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.

[0024] Figure 1 It is the front view of the present invention;

[0025] Figure 2 For the present invention Figure 1 A magnified view of part A;

[0026] Figure 3 It is a structural schematic diagram of the hydraulic pipe clamp assembly of the present invention in a clamping state;

[0027] Figure 4 It is a structural schematic diagram of the hydraulic pipe clamp assembly of the present invention in a released state.

[0028] icon:

[0029] 100, first connecting frame; 110, connecting pin; 120, rotating frame; 130, rotating cylinder; 140, second connecting frame; 200, main beam; 210, adjusting frame seat; 220, adjusting cylinder; 230, first connecting seat; 240, connecting ring; 300, vacuum pipe rack; 310, second connecting seat; 400, hydraulic pipe clamp assembly; 410, third connecting frame; 420, clamp body; 430, hydraulic rod. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example

[0034] like Figure 1-Figure 4 As shown, a gas-liquid linkage pipe grabbing device includes a first connecting frame 100 connected to an excavator, and also includes: a vacuum pipe rack 300, connected to the lower part of the first connecting frame 100; two hydraulic pipe clamp assemblies 400, respectively arranged at both ends of the vacuum pipe rack 300; the vacuum pipe rack 300 relies on negative pressure adsorption to grab the stacked steel pipes; the hydraulic pipe clamp assembly 400 is used to clamp the steel pipe grabbed by the vacuum pipe rack 300.

[0035] The working mechanism of the gas-liquid linkage pipe grabbing device provided in this embodiment is as follows:

[0036] When in use, the vacuum pipe rack 300 and the hydraulic pipe clamp assembly 400 are connected to the excavator through the first connecting frame 100. For the stacked steel pipes, the excavator controls the vacuum pipe rack 300 to move to the upper part of the steel pipe to be grasped, so that the vacuum pipe rack 300 fits against the outer wall of the steel pipe, and controls the vacuum pipe rack 300 to generate negative pressure, so that the vacuum pipe rack 300 absorbs the steel pipe by the negative pressure. The excavator controls the vacuum pipe rack 300 to lift the steel pipe, thereby completing the initial pipe grasping operation of the stacked steel pipe. After the steel pipe is lifted to a suitable height, the hydraulic pipe clamp assembly 400 is started to clamp the steel pipe grasped by the vacuum pipe rack 300, so that the vibration generated by the excavator when driving the steel pipe to move will not cause the steel pipe to fall, thereby ensuring the safety of the steel pipe lifting.

[0037] Regarding how the vacuum pipe holder 300 is connected to the first connecting holder 100, specifically:

[0038] The device also includes: a rotating frame 120, connected to the lower part of the first connecting frame 100; a second connecting frame 140, connected to the lower part of the rotating frame 120; a main beam 200, arranged at the lower part of the second connecting frame 140; an adjusting frame seat 210, connected to the side wall of the main beam 200; an adjusting cylinder 220, both ends of which are respectively hinged to the adjusting frame seat 210 and the second connecting frame 140; a connecting piece is also connected to the side wall of the main beam 200 and is connected to the vacuum pipe rack 300 through the connecting piece.

[0039] The rotating frame 120 is connected to the first connecting frame 100 and the second connecting frame 140 by bolts to form a whole. The main beam 200 is connected to the second connecting frame 140 by adjusting the cylinder 220. The setting of the rotating frame 120 can make the first connecting frame 100 and the second connecting frame 140 rotate relative to each other, so that the main beam 200 rotates in the horizontal direction, so as to adjust the horizontal position of the main beam 200, and then the vacuum pipe rack 300 connected to the main beam 200 through the connecting piece can move with the main beam 200, and then the steel pipe grasped by the vacuum pipe rack 300 rotates in the horizontal direction, so that the grasped steel pipe can rotate to adjust its position.

[0040] Regarding the structure of the connector, specifically:

[0041] The connecting member includes: a first connecting seat 230 connected to the main beam 200; a second connecting seat 310 connected to the vacuum pipe rack 300; and a connecting ring 240, two ends of which are respectively connected to the first connecting seat 230 and the second connecting seat 310.

[0042] The first connecting seat 230 is firmly connected to the main beam 200 by bolts, and the second connecting seat 310 is firmly connected to the vacuum pipe rack 300 by bolts. The two are connected by a connecting ring 240, and the connecting ring 240 can also be replaced by a steel rope or an iron chain or the like. While ensuring that the vacuum pipe rack 300 is firmly connected to the main beam 200, a certain limit of relative displacement can occur between the two. Therefore, when the excavator controls the vacuum pipe rack 300 to absorb and grab the steel pipe, the vacuum pipe rack 300 can be moved manually to fit the outer wall of the steel pipe to correct the position.

[0043] Regarding the number and function of the adjustment cylinder 220, specifically:

[0044] Two adjusting cylinders 220 are provided, and the two adjusting cylinders 220 are symmetrically connected between the second connecting frame 140 and the adjusting frame seat 210; the two adjusting cylinders 220 can drive the main beam 200 to rise and fall vertically by synchronous extension and contraction; the two adjusting cylinders 220 can drive the main beam 200 to tilt by contraction respectively.

[0045] The setting of the two adjusting cylinders 220 improves the connection firmness between the main beam 200 and the second connecting frame 140. When the two adjusting cylinders 220 are controlled to extend synchronously, the distance between the main beam 200 and the second connecting frame 140 increases. When the two adjusting cylinders 220 are controlled to shorten synchronously, the distance between the main beam 200 and the second connecting frame 140 decreases, thereby realizing the up and down position adjustment of the steel pipe. By controlling the synchronous extension and retraction of the two adjusting cylinders 220, the arm swing distance of the excavator can be compensated for position. When the two adjusting cylinders 220 are controlled to contract respectively, the main beam 200 swings downward in the direction of the adjusting cylinder 220 with a longer extension length, so that the hoisted steel pipe is tilted synchronously, thereby adapting to the hoisting operation of the steel pipe in different terrain environments.

[0046] Regarding the structure of the hydraulic pipe clamp assembly 400, specifically:

[0047] The hydraulic pipe clamp assembly 400 includes: a third connecting frame 410, connected to the end of the main beam 200; two clamp bodies 420, symmetrically hinged to the two sides of the third connecting frame 410; two hydraulic rods 430, whose two ends are respectively hinged to the third connecting frame 410 and the clamp bodies 420; the two hydraulic rods 430 synchronously extend and retract to drive the two clamp bodies 420 to move closer or farther, so that the hydraulic pipe clamp assembly 400 clamps and releases the steel pipe.

[0048] After the vacuum pipe rack 300 adsorbs and lifts the steel pipe to a suitable height, the two hydraulic rods 430 are controlled to extend, so that the two hydraulic rods 430 push the two clamp bodies 420 closer to each other, so that the steel pipe lifted by the vacuum pipe rack 300 is clamped, and then the steel pipe is firmly grasped, so that the vibration generated when the excavator drives the steel pipe to move will not cause the steel pipe to fall off. After the steel pipe is clamped by the hydraulic pipe clamp assembly 400, the negative pressure adsorption air path of the vacuum pipe rack 300 can be closed. In addition, when the vacuum pipe rack 300 adsorbs and grasps the steel pipe, the hydraulic pipe clamp assembly 400 is in an open state, so that the clamp body 420 of the hydraulic pipe clamp assembly 400 will not interfere with the pipe grasping operation of the vacuum pipe rack 300.

[0049] Regarding the number and position of the third connecting frames 410, specifically:

[0050] Two third connecting frames 410 are provided, and the two third connecting frames 410 are fixedly connected to two ends of the main cross beam 200 respectively.

[0051] There are two third connecting frames 410, and there are also two corresponding hydraulic pipe clamp assemblies 400. By arranging two hydraulic pipe clamp assemblies 400 at both ends of the main cross beam 200, both ends of the steel pipe can be clamped, thereby ensuring that the steel pipe is evenly and firmly stressed after being clamped.

[0052] Among the optional methods of this embodiment, the more preferred ones are:

[0053] The rotating frame 120 includes a first connecting part and a second connecting part, and the first connecting part can rotate axially relative to the second connecting part; the first connecting part is connected to the first connecting frame 100, and the second connecting part is connected to the second connecting frame 140; a rotating cylinder 130 is connected to the rotating frame 120, and the rotating cylinder 130 is used to drive the first connecting part of the rotating frame 120 to rotate axially relative to the second connecting part.

[0054] The cylinder body of the rotary cylinder 130 is hinged to the first connection part or the second connection part of the rotary frame 120. When the cylinder body of the rotary cylinder 130 is hinged to the first connection part of the rotary frame 120, its cylinder rod is hinged to the second connection part; when the cylinder body of the rotary cylinder 130 is hinged to the second connection part of the rotary frame 120, its cylinder rod is hinged to the first connection part; when the rotary cylinder 130 is started, the cylinder rod at its output end is extended and retracted to drive the relative axial rotation between the first connection part and the second connection part of the rotary cylinder 130, so that the second connection frame 140 rotates relative to the first connection frame 100, so that the grasped steel pipe can realize a rotational movement.

[0055] Regarding how the first connecting frame 100 is connected to the excavator, specifically:

[0056] The device further comprises a connecting pin 110 , which is plugged into the first connecting frame 100 and the excavator so as to connect the first connecting frame 100 to the excavator.

[0057] Regarding the power source of the gas-liquid linkage pipe grabbing device provided in this embodiment, specifically:

[0058] The vacuum pipe rack 300 is connected to the pneumatic system of the excavator; the hydraulic pipe clamp assembly 400, the adjusting cylinder 220 and the rotary cylinder 130 are all connected to the hydraulic system of the excavator.

[0059] The vacuum pipe rack 300 is connected to the pneumatic system of the excavator, so that the driver can control the vacuum pipe rack 300 to generate negative pressure to absorb the steel pipe through the pneumatic system of the excavator, and the hydraulic pipe clamp assembly 400, the adjusting cylinder 220 and the rotating cylinder 130 are connected to the hydraulic system of the excavator. The driver can control the hydraulic pipe clamp assembly 400 to tighten and loosen the steel pipe through the hydraulic system of the excavator, control the extension and contraction of the adjusting cylinder 220 to adjust the steel pipe up and down and the inclination, and control the extension and contraction of the rotating cylinder 130 to rotate the steel pipe.

[0060] 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 above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gas-liquid linkage pipe grabbing device, comprising a first connecting frame (100) connected to an excavator, characterized in that ； Also includes: A vacuum pipette rack (300) connected to the lower portion of the first connecting rack (100); Two hydraulic pipe clamp assemblies (400) are respectively arranged at two ends of the vacuum pipe rack (300); The vacuum pipe rack (300) relies on negative pressure adsorption to grab the stacked steel pipes; The hydraulic pipe clamp assembly (400) is used to clamp the steel pipe grasped by the vacuum pipe rack (300).

2. The gas-liquid linkage pipe grabbing device according to claim 1 is characterized in that ； Also includes: A rotating frame (120) connected to the lower part of the first connecting frame (100); A second connecting frame (140) connected to the lower part of the rotating frame (120); A main crossbeam (200) is arranged at the lower part of the second connecting frame (140); An adjustment bracket (210) connected to the side wall of the main beam (200); An adjusting oil cylinder (220), two ends of which are respectively hinged to the adjusting frame seat (210) and the second connecting frame (140); A connecting piece is also connected to the side wall of the main crossbeam (200) and is connected to the vacuum pipe rack (300) via the connecting piece.

3. The gas-liquid linkage pipe grabbing device according to claim 2 is characterized in that ； The connecting piece comprises: A first connecting seat (230) connected to the main crossbeam (200); A second connecting seat (310) connected to the vacuum pipe rack (300); The connecting ring (240) has two ends respectively connected to the first connecting seat (230) and the second connecting seat (310).

4. The gas-liquid linkage pipe grabbing device according to claim 2 is characterized in that ； Two adjusting oil cylinders (220) are provided, and the two adjusting oil cylinders (220) are symmetrically connected between the second connecting frame (140) and the adjusting frame seat (210); The two adjusting oil cylinders (220) can synchronously extend and retract to drive the main crossbeam (200) to vertically rise and fall; The two regulating oil cylinders (220) can respectively contract to drive the main crossbeam (200) to tilt.

5. The gas-liquid linkage pipe grabbing device according to claim 2 is characterized in that ； The hydraulic pipe clamp assembly (400) comprises: A third connecting frame (410) connected to an end of the main crossbeam (200); Two clamp bodies (420) are symmetrically hinged to two sides of the third connecting frame (410); Two hydraulic rods (430), both ends of which are respectively hinged to the third connecting frame (410) and the clamp body (420); The two hydraulic rods (430) are synchronously extended and retracted to drive the two clamp bodies (420) to move closer or farther away, thereby enabling the hydraulic pipe clamp assembly (400) to clamp and release the steel pipe.

6. The gas-liquid linkage pipe grabbing device according to claim 5 is characterized in that ； Two third connecting frames (410) are provided, and the two third connecting frames (410) are respectively fixedly connected to two ends of the main crossbeam (200).

7. The gas-liquid linkage pipe grabbing device according to claim 2, characterized in that; The rotating frame (120) comprises a first connecting portion and a second connecting portion, wherein the first connecting portion can axially rotate relative to the second connecting portion; The first connection portion is connected to a first connection frame (100), and the second connection portion is connected to a second connection frame (140); The rotating frame (120) is connected to a rotating oil cylinder (130), and the rotating oil cylinder (130) is used to drive the first connecting part of the rotating frame (120) to rotate axially relative to the second connecting part.

8. The gas-liquid linkage pipe grabbing device according to claim 1 is characterized in that ； It also includes a connecting pin (110), wherein the connecting pin (110) is plugged into the first connecting frame (100) and the excavator so that the first connecting frame (100) is connected to the excavator.

9. The gas-liquid linkage pipe grabbing device according to claim 1, characterized in that ； The vacuum pipe rack (300) is connected to the pneumatic system of the excavator.

10. The gas-liquid linkage pipe grabbing device according to claim 7, characterized in that ； The hydraulic pipe clamp assembly (400), the adjusting oil cylinder (220) and the rotary oil cylinder (130) are all connected to the hydraulic system of the excavator.

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