Underwater cutting equipment

Abstract

The utility model discloses an underwater cutting device which comprises a clamping mechanism, a cutting mechanism and a cutting mechanism, the clamping mechanism comprises a first fixing part, a first driving part and a clamping arm, and the clamping arm is rotatably connected with the first fixing part through the first driving part; the cutting mechanism comprises a second fixing part and a cutting assembly, and the cutting assembly is installed on the second fixing part; the cutting mechanism comprises a first fixing part and a second fixing part, the first fixing part and the second fixing part are rotatably connected, and the feeding driving part is arranged between the first fixing part and the second fixing part so that the cutting mechanism can move in the direction close to or away from a to-be-cut workpiece relative to the clamping mechanism under the action of the feeding driving part. By means of the underwater cutting equipment, avoiding of the cutting mechanism and clamping of the clamping mechanism are achieved, and therefore the problems that the accuracy of the cutting position is poor and the pipeline clamping difficulty is large due to the fact that the clamping mechanism is lacked during pipeline cutting are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater construction equipment, in particular to underwater cutting equipment. Background Art

[0002] In the fields of deep-sea oil and gas extraction, submarine rescue, and submarine scientific research, it is often necessary to cut hard materials on the seabed, such as steel pipes and rocks. Cutting pipelines in deep-sea operations is a highly technical job that requires the use of special tools and equipment. In the existing technology, hydraulic cutting equipment is generally used for pipeline cutting. These tools usually use high-pressure hydraulic oil to drive the cutting blade. During use, the pipeline to be cut needs to be manually fixed. The cutting equipment lacks an integrated clamping mechanism, resulting in poor accuracy of the cutting position and greater difficulty in clamping the pipeline during use. Utility Model Content

[0003] The purpose of the utility model is to at least solve the problem of poor cutting position accuracy and great difficulty in pipe clamping caused by the lack of a clamping mechanism when underwater cutting equipment is cutting pipes. This purpose is achieved through the following technical solutions:

[0004] The utility model provides an underwater cutting device, comprising:

[0005] A clamping mechanism, the clamping mechanism comprising a first fixing portion, a first driving member and a clamping arm, wherein the fixing end of the clamping arm is rotatably connected to one end of the first fixing portion through the first driving member, so that the movable end of the clamping arm rotates in a direction close to or away from the first fixing portion;

[0006] A cutting mechanism, the cutting mechanism comprising a second fixing portion and a cutting assembly, the cutting assembly being mounted on the second fixing portion;

[0007] A feed drive member, wherein the first fixing portion and the second fixing portion are rotatably connected, and the feed drive member is disposed between the first fixing portion and the second fixing portion, so that the cutting mechanism moves relative to the clamping mechanism toward or away from the workpiece to be cut under the action of the feed drive member.

[0008] When performing underwater pipeline cutting, the feed drive is first used to drive the cutting mechanism to avoid the clamping mechanism. The clamping arm moves relative to the first fixing part under the action of the first drive to open the clamping mechanism. After the workpiece to be cut enters the space formed by the first fixing part and the clamping arm, the clamping arm is driven in the reverse direction to clamp the workpiece to be cut. The workpiece to be cut is clamped and fixed by the clamping mechanism. Then, the cutting mechanism is gradually moved toward the direction close to the workpiece to be cut under the action of the feed drive to achieve pipeline cutting. In this way, the cutting mechanism avoids and the clamping mechanism is clamped by the underwater cutting equipment, thereby solving the problems of poor cutting position accuracy and great difficulty in pipeline clamping caused by the lack of a clamping mechanism during pipeline cutting, ensuring accurate cutting position and reducing the difficulty of pipeline clamping.

[0009] In some embodiments of the present invention, the underwater cutting device further comprises:

[0010] An operation panel, the operation panel is detachably mounted on the first fixing part, the hydraulic pipeline and control valve of the underwater cutting equipment are integrated on the operation panel, and the operation panel is communicatively connected with the underwater robot to receive control instructions of the underwater robot.

[0011] In some embodiments of the utility model, a floating block protection frame is further installed on the back of the operation panel, and a floating block is arranged inside the floating block protection frame.

[0012] In some embodiments of the present invention, a clamping pad is installed on a side of the first fixing portion facing the workpiece to be cut and / or a side of the clamping arm facing the workpiece to be cut.

[0013] In some embodiments of the present invention, the first driving member is a first telescopic cylinder, a cylinder barrel of the first telescopic cylinder is installed on one of the first fixed part and the clamping arm, and a telescopic rod of the first telescopic cylinder is installed on the other of the first fixed part and the clamping arm.

[0014] In some embodiments of the present invention, the cutting assembly includes a second driving member, a transmission assembly and a cutting member, and the cutting member is transmission-connected to the second driving member via the transmission assembly.

[0015] In some embodiments of the present invention, the cutting member is a cutting rope, and the transmission assembly includes:

[0016] A driving roller, the driving roller is drivingly connected to the second driving member;

[0017] At least two driven wheels, the cutting rope is passed around the driving roller and each driven wheel in sequence and is tightened.

[0018] In some embodiments of the present invention, the transmission assembly further comprises:

[0019] The tensioning mechanism is arranged between two adjacent driven wheels to tighten the cutting rope between the two driven wheels.

[0020] In some embodiments of the present invention, the cutting rope comprises:

[0021] Rope body;

[0022] Diamond beads, the diamond beads are annular in structure, and a plurality of the diamond beads are fixed on the rope body at equal intervals.

[0023] In some embodiments of the present invention, the second driving member is a hydraulic motor.

[0024] In some embodiments of the present invention, the feed drive member is a second telescopic cylinder, the cylinder barrel of the second telescopic cylinder is installed on one of the first fixed part and the second fixed part, and the telescopic rod of the second telescopic cylinder is installed on the other of the first fixed part and the second fixed part. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0026] Figure 1 One of the structural diagrams of the underwater cutting device according to the embodiment of the utility model is schematically shown;

[0027] Figure 2 The second schematic diagram of the structure of the underwater cutting device according to the embodiment of the utility model is schematically shown;

[0028] Figure 3 for Figure 1 One of the partial structural schematic diagrams of the underwater cutting equipment shown in;

[0029] Figure 4 for Figure 1 The second schematic diagram of the partial structure of the underwater cutting equipment shown in FIG.

[0030] Figure 5 for Figure 1 The third schematic diagram of the partial structure of the underwater cutting equipment shown in FIG.

[0031] Figure 6 for Figure 1The fourth schematic diagram of the partial structure of the underwater cutting equipment shown in FIG.

[0032] Figure 7 for Figure 1 The fifth schematic diagram of the partial structure of the underwater cutting equipment shown in FIG.

[0033] The reference numerals are as follows:

[0034] 1- Clamping mechanism;

[0035] 11-first fixing part, 12-first driving member, 13-clamping arm, 14-accommodating space, 15-clamping pad;

[0036] 2- cutting mechanism;

[0037] 21-second fixing part, 22-second driving member, 23-cutting member, 24-driving roller, 25-driven wheel, 26-tensioning arm;

[0038] 3-feed drive;

[0039] 4-Floating block protection frame;

[0040] 5- Operation panel. DETAILED DESCRIPTION

[0041] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0042] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0043] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0044] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both above and below orientations.

[0045] In order to solve the problems existing in the prior art, the utility model provides a device for cutting underwater pipelines, especially an underwater cutting device suitable for deep-sea cutting operations.

[0046] Please refer to Figure 1-Figure 7 The underwater cutting equipment provided by the utility model includes a clamping mechanism 1, a cutting mechanism 2 and a feed drive 3; wherein the clamping mechanism 1 includes a first fixed portion 11, a first drive 12 and a clamping arm 13, and the clamping arm 13 is rotatably connected to the first fixed portion 11 through the first drive 12; the cutting mechanism 2 includes a second fixed portion 21 and a cutting assembly, and the cutting assembly is installed on the second fixed portion 21; the first fixed portion 11 and the second fixed portion 21 are rotatably connected, and the feed drive 3 is arranged between the first fixed portion 11 and the second fixed portion 21, so that the cutting mechanism 2 moves relative to the clamping mechanism 1 in a direction close to or away from a workpiece to be cut under the action of the feed drive 3.

[0047] Specifically, the first fixing portion 11 and the second fixing portion 21 may both be frame structures and have a weight-reducing structure in order to reduce their own weight. Figure 1 and Figure 2As shown, the underwater cutting device provided by the utility model is used in conjunction with an underwater robot (not shown in the figure). The device integrates an operation panel 5. The hydraulic pipelines, operation reversing valves, etc. involved in the device are integrated on the operation panel 5. The operation panel 5 is connected to the underwater robot for communication and is used to receive the control instructions sent by the robot to control each drive member to complete the corresponding actions, thereby realizing the automatic completion of clamping, feeding and cutting. In order to facilitate the underwater robot to grab, a floating block protection frame 4 can be installed on the back side of the operation panel 5. The floating block protection frame 4 is arranged on the back side of the operation panel 5, which can effectively reduce the volume of the device and make the structure more compact. A gripper is also arranged on the floating block protection frame 4, and a plurality of grippers can be arranged to facilitate the robot to grab and move underwater; at the same time, a floating block is arranged in the floating block protection frame 4, and the floating block density is less than the water density, which is used to reduce the gravity of the underwater cutting device underwater, so that the ROV can grab the device and move underwater; the floating block protection frame is used to protect the floating block from collision. The buoy protection frame 4 is detachably mounted on the first fixing portion 11 to facilitate assembly and disassembly of the components. It should be understood that the underwater robot is any existing model of underwater robot, which is only used in conjunction with the device and is not a component of the device.

[0048] When performing underwater pipeline cutting, the feed drive 3 is first used to drive the cutting mechanism 2 to avoid the clamping mechanism 1. The clamping arm 13 moves relative to the first fixing part 11 under the action of the first drive 12 to open the clamping mechanism 1. After the workpiece to be cut enters the space formed by the first fixing part 11 and the clamping arm 13, the clamping arm 13 is driven in reverse to clamp the workpiece to be cut. The workpiece to be cut is clamped and fixed by the clamping mechanism 1, and then the cutting mechanism 2 is gradually moved toward the direction close to the workpiece to be cut under the action of the feed drive 3 to achieve pipeline cutting. In this way, the cutting mechanism 2 is avoided and the clamping mechanism 1 is clamped by the underwater cutting equipment, thereby solving the problem of poor cutting position accuracy and great difficulty in pipeline clamping caused by the lack of the clamping mechanism 1 during pipeline cutting, ensuring the accuracy of the cutting position and reducing the difficulty of pipeline clamping.

[0049] In some embodiments of the present invention, please continue to refer to Figure 1-Figure 7, a receiving space 14 for the workpiece to be cut is formed between the first fixing portion 11 and the clamping arm 13, and one side of the first fixing portion 11 used to enclose the receiving space 14 is an arc-shaped surface, that is, in order to achieve the clamping and holding of the pipeline, the receiving space 14 formed between the first fixing portion 11 and the clamping arm 13 should roughly match the shape of the pipeline, that is, the side facing the pipeline direction is generally arc-shaped. The fixed end of the clamping arm 13 is rotatably connected to one end of the first fixing portion 11, so that when the clamping arm 13 rotates relative to the first fixing portion 11, the receiving space 14 is expanded or reduced; specifically, the fixed end of the clamping arm 13 can be installed on the first fixing portion 11 in a hinged or pivoted manner, and when the first driving member 12 is started, the movable end of the clamping arm 13 is driven to move in a direction close to or away from the first fixing portion 11, and at this time, the fixed end of the clamping arm 13 rotates relative to the first fixing portion 11 around the hinge axis or pivot. It should be understood that when the clamping arm 13 rotates in a direction away from the first fixed portion 11 under the action of the first driving member 12, the opening of the accommodating space 14 expands, allowing the pipeline to enter through the opening of the accommodating space 14; when the clamping arm 13 rotates in a direction close to the first fixed portion 11 under the action of the first driving member 12, the opening of the accommodating space 14 shrinks, allowing the pipeline to be clamped and fixed in the accommodating space 14.

[0050] During use, the clamping arm 13 and the first fixing part 11 will inevitably contact and collide with the pipeline when clamping the pipeline. In order to avoid damage to the pipeline caused by contact wear and collision, the first fixing part 11 is installed on the side of the workpiece to be cut and / or the clamping arm 13 is installed on the side of the workpiece to be cut; the clamping plate 15 can be made of resin material or other buffer materials.

[0051] Theoretically, the first driving member 12 is a mechanism that can provide driving force for the clamping arm 13 so that the clamping arm 13 rotates relative to the first fixed part 11. It can be a motor or a motor. In order to reduce the complexity of the transmission system, in this embodiment, the first driving member 12 is a first telescopic cylinder, the cylinder barrel of the first telescopic cylinder is installed on one of the first fixed part 11 and the clamping arm 13, and the telescopic rod of the first telescopic cylinder is installed on the other of the first fixed part 11 and the clamping arm 13. That is to say, according to the actual installation space, the cylinder barrel of the first telescopic cylinder can be installed on the first fixed part 11, and at this time, its cylinder barrel is installed on the clamping arm 13, or vice versa. During operation, the first telescopic cylinder extends, pushing the clamping arm away from the first fixed part 11 to expand or open the opening of the accommodating space 14; conversely, the first telescopic cylinder shortens, pulling the clamping arm back in the direction close to the first fixed part 11 to reduce or close the opening of the accommodating space 14.

[0052] Preferably, each mechanical structure of the clamping mechanism 1 (such as between the first fixing portion 11 and the clamping arm 13, between the clamping arm 13 and the clamping pad 15, between the first driving member 12 and the first fixing portion 11, and between the first driving member 12 and the clamping arm 13) adopts a single-piece assembly structure to achieve more convenient assembly and disassembly and avoid welding deformation caused by welding. Furthermore, in order to reduce the dead weight of the clamping mechanism 1, a plurality of weight-reducing holes can be opened on the clamping arm 13 and the first fixing portion 11.

[0053] In some embodiments of the present invention, please continue to refer to Figure 1-Figure 6 The cutting assembly includes a second driving member 22, a transmission assembly and a cutting member 23, and the cutting member 23 is connected to the second driving member 22 through the transmission assembly. During operation, before the clamping mechanism 1 needs to position and clamp the pipeline, in order to avoid interference between the clamping mechanism 1 and the cutting assembly, the feed driving member 3 must be started first, and the entire cutting mechanism 2 is moved to the side by the feed driving member 3, so as to ensure the action of the clamping mechanism 1. After the clamping mechanism 1 completes the positioning and clamping of the pipeline, the feed driving member 3 moves in the opposite direction, and after the cutting mechanism 2 is moved back to the working position, the second driving member 22 is started, and the cutting member 23 is driven to move by the second driving member 22 through the transmission assembly, so as to cut the pipeline.

[0054] Preferably, the feed drive 3 is a second telescopic cylinder, the cylinder barrel of the second telescopic cylinder is installed on one of the first fixed part 11 and the second fixed part 21, and the telescopic rod of the second telescopic cylinder is installed on the other of the first fixed part 11 and the second fixed part 21. That is to say, according to the actual installation space, the cylinder barrel of the first telescopic cylinder can be installed on the first fixed part 11, and at this time, its cylinder barrel is installed on the second fixed part 21, or vice versa. During operation, the second telescopic cylinder extends and pushes the second fixed part 21 in a direction away from the first fixed part 11, so that the entire cutting mechanism 2 avoids the clamping mechanism; conversely, the second telescopic cylinder shortens and pulls the second fixed part 21 back in a direction close to the first fixed part 11, so that the entire cutting mechanism 2 returns to the working position. It should be understood that the feed drive 3 is not limited to the form of a telescopic cylinder, as long as it can achieve driving the second fixed part 21 to approach or move away from the first fixed part 11, for example, it can also be in the form of a motor and a transmission system.

[0055] In some embodiments of the utility model, the cutting member 23 is a cutting rope, and the cutting rope includes a rope body and diamond beads. The rope body is specifically a steel wire rope, and the diamond beads are annular structures, and a plurality of the diamond beads are fixed on the rope body at equal intervals. At this time, the transmission assembly includes a driving roller 24, at least two driven wheels 25, and a tensioning mechanism. The driving roller 24 is connected to the second driving member 22 in a transmission manner. The cutting rope passes around the driving roller 24 and each driven wheel 25 in turn and is tightened. The tensioning mechanism is arranged between two adjacent driven wheels 25 to tighten the cutting rope between the two driven wheels 25. For example, the tensioning mechanism includes a tensioning arm 26 hinged to the second fixed part 21 and a third hydraulic cylinder. The third hydraulic cylinder is extended or shortened to drive the tensioning arm 26 to rotate around the second fixed part 21 to adjust the tension of the steel wire rope.

[0056] In this way, a cutting tool with diamond particles attached to a high-strength wire rope is used to achieve fast and accurate cutting by utilizing its superhard characteristics. The diamond wire rope saw, as the main executor of the cutting work, can maintain an efficient and lasting working state during the friction cutting process. The beads are processed into a ring shape and fixed on the wire rope at equal intervals, and the flexible wire rope plays the role of connecting the beads and increasing the overall tension. Its excellent tensile resistance and non-breakage characteristics enable the diamond wire rope saw to maintain a stable shape and strength during work. The wire rope increases the tension value by continuous winding, further improving the working efficiency of the wire rope saw. Preferably, each mechanical structure of the clamping mechanism 1 (such as between the first fixed part 11 and the clamping arm 13, between the clamping arm 13 and the clamping pad 15, between the first drive member 12 and the first fixed part 11, and between the first drive member 12 and the clamping arm 13) adopts a single-piece assembled structure to achieve more convenient assembly and disassembly and avoid welding deformation caused by welding. Furthermore, in order to reduce the deadweight of the clamping mechanism 1, a plurality of weight-reducing holes may be provided on the clamping arm 13 and the first fixing portion 11. In addition, the second driving member 22 is a hydraulic motor, which drives the cutting rope roller, thereby achieving the advantages of large torque and wide speed adjustment range, rapid response, long service life, and no electrical interface in the seawater during operation, thereby increasing safety and stability.

[0057] Specifically, the first telescopic cylinder can be an oil cylinder, a pneumatic cylinder or an electric cylinder. In this embodiment, the first telescopic cylinder is an oil cylinder, and the actuators of the clamping action and feeding action of the whole machine are completed by the hydraulic cylinder. The hydraulic cylinder has a strong load-bearing capacity, smooth and reliable movement, and can achieve high-precision motion control.

[0058] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An underwater cutting device, characterized in that: include: A clamping mechanism, the clamping mechanism comprising a first fixing portion, a first driving member and a clamping arm, wherein the fixing end of the clamping arm is rotatably connected to one end of the first fixing portion through the first driving member, so that the movable end of the clamping arm rotates in a direction close to or away from the first fixing portion; A cutting mechanism, the cutting mechanism comprising a second fixing portion and a cutting assembly, the cutting assembly being mounted on the second fixing portion; A feed drive member, wherein the first fixing portion and the second fixing portion are rotatably connected, and the feed drive member is disposed between the first fixing portion and the second fixing portion, so that the cutting mechanism moves relative to the clamping mechanism toward or away from the workpiece to be cut under the action of the feed drive member.

2. The underwater cutting device according to claim 1, characterized in that: Also includes: An operation panel is detachably mounted on the first fixing portion, the hydraulic pipeline and control valve of the underwater cutting equipment are integrated on the operation panel, and the operation panel is communicatively connected with the underwater robot to receive control instructions of the underwater robot.

3. The underwater cutting device according to claim 2, characterized in that: A floating block protection frame is also installed on the back of the operation panel, and a floating block is arranged inside the floating block protection frame.

4. The underwater cutting device according to claim 1, characterized in that: A clamping pad is installed on a side of the first fixing portion facing the workpiece to be cut and / or a side of the clamping arm facing the workpiece to be cut.

5. The underwater cutting device according to any one of claims 1 to 4, characterized in that: The first driving member is a first telescopic cylinder, a cylinder barrel of the first telescopic cylinder is installed on one of the first fixing portion and the clamping arm, and a telescopic rod of the first telescopic cylinder is installed on the other of the first fixing portion and the clamping arm.

6. The underwater cutting device according to claim 1, characterized in that: The cutting assembly comprises a second driving member, a transmission assembly and a cutting member, and the cutting member is transmission-connected to the second driving member via the transmission assembly.

7. The underwater cutting device according to claim 6, characterized in that: The cutting member is a cutting rope, and the transmission assembly comprises: A driving roller, the driving roller is drivingly connected to the second driving member; At least two driven wheels, the cutting rope is passed around the driving roller and each driven wheel in sequence and tightened; The tensioning mechanism is arranged between two adjacent driven wheels to tighten the cutting rope between the two driven wheels.

8. The underwater cutting device according to claim 7, characterized in that: The cutting rope comprises: Rope body; The diamond beads are annular in structure, and a plurality of the diamond beads are fixed on the rope body at equal intervals.

9. The underwater cutting device according to any one of claims 6 to 8, characterized in that: The second driving member is a hydraulic motor.

10. The underwater cutting device according to any one of claims 1-4, 6-8, characterized in that: The feed drive member is a second telescopic cylinder, a cylinder barrel of the second telescopic cylinder is installed on one of the first fixed part and the second fixed part, and a telescopic rod of the second telescopic cylinder is installed on the other of the first fixed part and the second fixed part.

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