Translation type rope saw and rope clamping prevention device

Abstract

The utility model discloses a translation type rope saw and an anti-pinch rope device, the anti-pinch rope device comprises a guide rail which is installed on a translation arm and extends along the feeding direction of a cutting rope; the mounting frame is mounted on the guide rail in a sliding manner along the extension direction of the guide rail; a fixing part of the clamping block is detachably mounted on the mounting frame, and a wedge-shaped part of the clamping block is used for being embedded into a notch of a subsea pipeline to be cut. The rope clamping can be prevented when the translation type rope saw is used for cutting the subsea pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to underwater construction equipment technical field especially relates to a kind of rope saw and anti-clip rope device of translation. BACKGROUND

[0002] With the development of marine technology, the role of deep-sea pipelines in marine engineering becomes increasingly important, and deep-sea pipelines are widely used in fields such as transportation and fluid transportation. During use, various reasons can cause damage to the pipeline, for example, due to the long-term exposure of deep-sea pipelines to seawater and other corrosive environments, the pipeline may be corroded and worn, affecting its structural integrity and functionality; at the same time, submarine earthquakes, landslides, anchoring accidents or other underwater activities can cause the pipeline to be impacted externally, causing damage or rupture; and long-term exposure to pressure and temperature changes, as well as dynamic loads such as ocean currents, can cause the pipeline material to fatigue, leading to cracks or breaks.

[0003] During the cutting of the pipeline, a translation rope saw is needed to cut the pipeline. When the diamond wire cuts the pipeline to a certain depth, the cut opening position may retract due to the influence of the pipeline's own gravity, external forces and bending moments, and the cutting opening may easily clamp the cutting rope. SUMMARY

[0004] The utility model aims to provide a kind of rope saw and anti-clip rope device of translation, to prevent the rope saw of translation from clamping rope when cutting the pipeline. The purpose is realized by the following technical solutions:

[0005] The utility model provides a kind of anti-clip rope device for translation rope saw, the translation rope saw includes fixed arm and translation arm relative to the fixed arm, cutting rope is installed on the translation arm, the anti-clip rope device includes:

[0006] Guide rail, the guide rail is installed on the translation arm and extends along the feeding direction of the cutting rope;

[0007] Mounting bracket, the mounting bracket is slidably installed on the guide rail along the extension direction of the guide rail;

[0008] Clamping block, the fixed part of the clamping block is detachably installed on the mounting bracket, and the wedge-shaped part of the clamping block is used to embed in the cut opening of the cut pipeline.

[0009] In the working process, the anti-roping device is installed on the translation arm of the translation type rope saw, and moves linearly with the translation arm during cutting. After cutting the rope and the submarine pipeline, a cut is formed, and then the clamping block moves to the cut position and is embedded in the cut. Then the translation arm continues to move in the cutting feed direction, the guide rail moves in the feed direction synchronously with the translation arm, and the mounting bracket and the clamping block fixed in position move freely in the length direction of the guide rail. The clamping block stays in the cut to support the cut to avoid the cut from retracting to cause the cutting rope to be clamped. After cutting is completed, the translation arm moves reversely, the guide rail moves reversely and resets with the translation arm, the translation arm continues to move reversely, the magnet attracts the submarine pipeline to drive the mounting bracket and the clamping block mounted on the mounting bracket to move to reset and finally disengage from the cut, and the saw is withdrawn. In this way, the anti-roping device can prevent the translation type rope saw for cutting a large diameter submarine pipeline from roping during cutting of the submarine pipeline.

[0010] In some embodiments, the translation arm is in a U-shaped structure to form an avoiding space of the cutting rope; and the guide rail is two, and the two guide rails are arranged on two sides of the avoiding space of the translation arm.

[0011] In some embodiments, the mounting bracket comprises:

[0012] a first mounting arm, one end of the first mounting arm is slidably mounted on the guide rail on one side through a mounting assembly, and the other end of the first mounting arm is slidably mounted on the guide rail on the other side through a mounting assembly;

[0013] a second mounting arm, the second mounting arm is fixedly connected with the first mounting arm, and the clamping block is detachably mounted on the second mounting arm.

[0014] In some embodiments, the mounting bracket further comprises:

[0015] a connecting plate, the first mounting arm and the second mounting arm are fixedly connected through the connecting plate.

[0016] In some embodiments, the clamping block is two, and the two clamping blocks are arranged at intervals in the length direction of the second mounting arm.

[0017] In some embodiments, an avoiding arc is formed on the second mounting arm, the avoiding arc is recessed away from the cut submarine pipeline, and the avoiding arc is located between the two clamping blocks.

[0018] In some embodiments, the connection between the wedge-shaped part of the clamping block and the fixed part has an avoiding slope.

[0019] In some embodiments, a magnet is arranged between the first mounting arm and the second mounting arm, and the magnet is located between the two clamping blocks.

[0020] In some embodiments, the mounting assembly comprises:

[0021] a slider, the first mounting arm being fixedly connected to the slider, the slider being slidably mounted on the guide rail;

[0022] a roller, the roller being arranged between the slider and the guide rail;

[0023] a jackscrew, the jackscrew being mounted on the slider and pressing the slider against the guide rail.

[0024] The utility model also provides a kind of translation type rope saw, comprising:

[0025] The anti-pinch rope device as described above is mounted on the translation arm of the translation type rope saw. BRIEF DESCRIPTION OF DRAWINGS

[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a better understanding of the preferred embodiments, and are not to be considered as limiting of the present utility model. Moreover, in the drawings, like reference numerals refer to similar components throughout the several views. In the drawings:

[0027] Figure 1 One of the structural schematic diagrams of the anti-pinch rope device according to the embodiments of the present utility model is schematically shown;

[0028] Figure 2 The second structural schematic diagram of the anti-pinch rope device according to the embodiments of the present utility model is schematically shown;

[0029] Figure 3 The partial structural schematic diagram of the anti-pinch rope device according to the embodiments of the present utility model is schematically shown;

[0030] Figure 4 The structural schematic diagram of the clamp block according to the embodiments of the present utility model is schematically shown;

[0031] Figure 5 The structural schematic diagram of the anti-pinch rope device in use according to the embodiments of the present utility model is schematically shown.

[0032] The reference numerals are as follows:

[0033] 100-translation arm, 200-cutting rope;

[0034] 1-guide rail;

[0035] 2-mounting frame, 21-first mounting arm, 22-second mounting arm, 23-connection plate, 221-avoidance arc, 24-magnet;

[0036] 3 - clamp block, 31 - escape chamfer, 32 - clamping groove, 33 - through slot, 34 - bolt

[0037] 41 - slider, 42 - roller, 43 - jackscrew. DETAILED DESCRIPTION

[0038] Example embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. While example embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the present disclosure to those skilled in the art.

[0039] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0040] Although the terms first, second, third, and the like can be used herein to describe various 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 be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0041] For the purposes of the description, a relative spatial term such as "inner", "outer", "lateral", "medial", "lower", "bottom", "upper", "top", and the like can be used herein for describing an element's or feature's relationship to another element or feature as illustrated in the figures. Such relative spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as "below" or "beneath" another element or feature would then be oriented "above" or "over" the other element or feature. Thus, the example term "below" can encompass both an orientation of above and below. The elements or features can be oriented in any direction relative to each other and / or the apparatus.

[0042] Reference is made to Figures 1-5 The anti-roping device is used in a translational rope saw, especially in a translational cutting saw used for cutting large submarine pipelines, and is an auxiliary tool installed on the translational rope saw to reduce or avoid the phenomenon of rope clamping at the cutting opening due to uneven force on the diamond wire rope during the cutting process. The translational rope saw is the same as the prior art, and includes a fixed arm and a translational arm 100 that moves relative to the fixed arm, and a cutting rope 200 is installed on the translational arm 100. During the operation, the cutting rope 200 moves linearly relative to the fixed arm with the translational arm 100 to cut the submarine pipeline.

[0043] The anti-roping device includes a guide rail 1, a mounting frame 2, and a clamping block 3. The guide rail 1 is installed on the translational arm 100 and extends along the feeding direction of the cutting rope 200. The mounting frame 2 is slidably installed on the guide rail 1 along the extension direction of the guide rail 1. The fixed part of the clamping block 3 is detachably installed on the mounting frame 2, and the wedge-shaped part of the clamping block 3 is used to embed into the cut opening of the cut submarine pipeline. The connection between the wedge-shaped part and the fixed part of the clamping block 3 can have a relief slope 31, which can be a plane or an arc surface. During the operation, the relief slope 31 can be in contact with the submarine pipeline, which can increase the contact area between the submarine pipeline and the clamping block 3 as much as possible to avoid stress concentration.

[0044] In the working process, the anti-pinch rope device is installed on the translation arm 100 of the translation type rope saw, and moves linearly with the translation arm 100 during cutting. After the cutting rope 200 cuts the submarine pipeline to form a cut, the clamp block 3 moves to the cut position and is embedded in the cut. Then the translation arm 100 continues to move in the cutting feed direction, the guide rail 1 moves in the feed direction synchronously with the translation arm 100, and the mounting bracket 2 and the clamp block 3 fixed in position move freely in the length direction of the guide rail 1. The clamp block 3 stays in the cut to support the cut to avoid the cut from retracting to cause the cutting rope 200 to be clamped. After the cutting is completed, the translation arm 100 moves reversely, the guide rail 1 moves reversely and resets with the translation arm 100, and the translation arm 100 continues to move reversely to drive the mounting bracket 2 and the clamp block 3 mounted on the mounting bracket 2 to move and finally separate from the cut, thereby achieving saw withdrawal. In this way, the anti-pinch rope device can prevent the translation type rope saw used for cutting a large-diameter submarine pipeline from pinching the rope during cutting.

[0045] Specifically, since the cutting saw is large and the submarine pipeline to be cut is large in specification, in order to ensure the movement guiding property of the anti-pinch rope device and the anti-pinch effect of the clamp block 3, the translation arm 100 is in a U-shaped structure to form a avoiding space of the cutting rope 200. Correspondingly, the guide rail 1 is two, and the two guide rails 1 are arranged on both sides of the avoiding space of the translation arm 100. The length of the guide rail 1 is subject to the stroke requirement, and is adjusted according to the specification of the submarine pipeline to be cut, which is not limited here.

[0046] In order to ensure the installation reliability of the mounting bracket 2 on the guide rail 1 and the installation convenience of the clamp block 3 on the mounting bracket 2, the mounting bracket 2 includes a first mounting arm 21 and a second mounting arm 22. One end of the first mounting arm 21 is slidably mounted on the guide rail 1 on one side through a mounting assembly, and the other end of the first mounting arm 21 is slidably mounted on the guide rail 1 on the other side through a mounting assembly. The first mounting arm 21 can move linearly along the guide rails 1 on both sides to approach or move away from the submarine pipeline to be cut. The second mounting arm 22 is fixedly connected with the first mounting arm 21, and the clamp block 3 is detachably mounted on the second mounting arm 22. When the first mounting arm 21 moves along the guide rail 1, the second mounting arm 22 and the clamp block 3 thereon move synchronously.

[0047] The mounting bracket 2 further includes a connecting plate 23, and the first mounting arm 21 and the second mounting arm 22 are fixedly connected through the connecting plate 23. The connecting plate 23 can be in a U-shaped structure, the upper plate of the connecting plate 23 is bolted to the first mounting arm 21, the vertical section of the connecting plate 23 separates the first mounting arm 21 and the second mounting arm 22 by a certain distance, and the lower plate of the connecting plate 23 is bolted to the second mounting arm 22. According to the strength requirement, multiple connecting plates 23 can be arranged, and the connecting plates 23 are arranged at intervals in the length direction of the mounting bracket 2.

[0048] In use, if the clamping force of the cutout is too large, the clamping block 3 may not be able to be withdrawn, at this time, in order to ensure the withdrawal of the saw and other parts of the device, the clamping block 3 and the second mounting arm 22 should be selected to be separable structure. For example, the fixed part of the clamping block 3 is provided with a clamping groove 32, the second mounting arm 22 is inserted into the clamping groove 32, and the groove wall of the clamping groove 32 is provided with a through groove 33 (at least one end of the groove body is open). After the second mounting arm 22 is inserted into the clamping groove 32, it is fixed by using a bolt 34 passing through the through groove 33. When the clamping force of the cutout is greater than the friction between the press pin and the second mounting arm 22, the bolt 34 is separated from the opening of the through groove 33, so that the clamping block 3 is separated from the second mounting arm 22, and the clamping block 3 remains in the cutout. In this case, external intervention is required to cut off the cutting rope, and other parts of the device can be withdrawn with the sliding arm 100 to achieve the withdrawal of the saw.

[0049] Because the cutting saw is large, the sea pipe to be cut is also large, in order to ensure the anti-clamping effect, the clamping block 3 can be multiple, this embodiment takes two clamping blocks 3 as an example, the two clamping blocks 3 are arranged at intervals in the length direction of the second mounting arm 22, in order to adapt to sea pipes of different diameters, the distance between the two clamping blocks 3 can be adjusted, for example, a plurality of groups of pin holes are arranged at intervals in the length direction of the second mounting arm 22, by selecting different pin holes to install the press pin, the distance between the two clamping blocks 3 is adjusted. In order to avoid the offset of the press pin, it is preferred that each group of pin holes contains two or more pin holes.

[0050] The second mounting arm 22 is provided with a relief arc 221, the relief arc 221 is recessed away from the cut sea pipe, and the relief arc 221 is located between the two clamping blocks 3; by arranging the relief arc 221, when the cut sea pipe contacts the mounting frame 2, a certain relief space can be formed, and rigid collision between the two can also be avoided, thereby protecting the sea pipe.

[0051] Further, the first mounting arm 21 and the second mounting arm 22 are provided with a magnet 24, and the magnet 24 is located between the two clamping blocks 3. When the clamping block 3 enters the sea pipe cutout, the magnet 24 is attracted to the sea pipe, and the sea pipe can push the first mounting arm 21 to move relative to the guide rail 1.

[0052] In some embodiments, the mounting assembly comprises a sliding block 41, a roller 42 and a jackscrew 43; wherein the first mounting arm 21 is fixedly connected with the sliding block 41, the sliding block 41 is slidably mounted on the guide rail 1, the roller 42 is arranged between the sliding block 41 and the guide rail 1, the jackscrew 43 is mounted on the sliding block 41 and presses the sliding block 41 against the guide rail 1. In the feeding process, the mounting frame 2 first moves along the guide rail 1 for a certain distance, in this process, the jackscrew 43 presses the guide rail 1 and the sliding block 41 tightly, so that the guide rail 1 and the sliding block 41 move together with the mounting frame 2, when the clamping block 3 enters the notch and clamps tightly, the sliding block 41 moves relative to the clamping block 3, the sliding block 41 has a tendency to move relative to the guide rail 1, when the friction force is greater than the pressing force of the jackscrew 43, the sliding block 41 overcomes the pressing force of the jackscrew 43 and moves along the guide rail 1.

[0053] In addition to the above-mentioned rope anti-pinch device, the utility model also provides a translation type rope saw comprising the rope anti-pinch device, and other structures of the translation type rope saw can be referred to the prior art and will not be repeated here.

[0054] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of claims.

Claims

1. An anti-roping device for a translational rope saw, the translational rope saw comprising a stationary arm and a translational arm that is translational relative to the stationary arm, a cutting rope being mounted on the translational arm, characterized in that, The anti-pinch rope device comprises: a guide rail mounted on the horizontal arm and extending along the feeding direction of the cutting rope; a mounting frame slidably mounted on the guide rail along the extension direction of the guide rail; a clamping block, a fixed part of which is detachably mounted on the mounting frame, and a wedge-shaped part of which is used for embedding into the cut of the cut sea pipe.

2. The rope guard device of claim 1, wherein, The horizontal arm is in a U-shaped structure to form an avoiding space for the cutting rope; and the guide rail is two, and the two guide rails are respectively arranged on both sides of the avoiding space of the horizontal arm.

3. The rope guard device of claim 2, wherein, The mounting frame comprises: a first mounting arm, one end of which is slidably mounted on the guide rail on one side through a mounting assembly, and the other end of which is slidably mounted on the guide rail on the other side through a mounting assembly; a second mounting arm, which is fixedly connected with the first mounting arm, and on which the clamping block is detachably mounted.

4. The rope guard device of claim 3, wherein, The mounting frame further comprises: a connecting plate, by which the first mounting arm and the second mounting arm are fixedly connected.

5. The rope guard device of claim 3, wherein, The clamping block is two, and the two clamping blocks are arranged at intervals in the length direction of the second mounting arm.

6. The rope guard device of claim 5, wherein, An avoiding arc is formed on the second mounting arm, which is recessed away from the cut sea pipe, and the avoiding arc is located between the two clamping blocks.

7. The rope guard device of claim 1, wherein, The connection between the wedge-shaped part and the fixed part of the clamping block has an avoiding slope.

8. The rope guard device of claim 5, wherein, A magnet is arranged between the first mounting arm and the second mounting arm, and the magnet is located between the two clamping blocks.

9. The rope guard device of claim 3, wherein, The mounting assembly comprises: a sliding block, which is fixedly connected with the first mounting arm and is slidably mounted on the guide rail; a roller, which is arranged between the sliding block and the guide rail; a jackscrew, which is mounted on the sliding block and presses the sliding block against the guide rail.

10. A translation type wire saw, characterized by, The anti-pinch rope device is mounted on the horizontal arm of the horizontal rope saw. The anti-pinch rope device is mounted on the horizontal arm of the horizontal rope saw.

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