Jet type trencher for submarine pipeline

Abstract

The utility model discloses a submarine pipeline jet-type ditcher, which comprises a sliding frame, a support, a submersible pump and a nozzle, the top of the sliding frame is provided with the support, the submersible pump is arranged in the support, the left side of the submersible pump is provided with the nozzle, and the left side of the sliding frame is provided with an adjusting assembly. The brake disc can drive the double-end lead screw to rotate on the bearing, the rotating double-end lead screw acts on the two sets of transmission blocks, the transmission blocks synchronously drive the sliding rings to slide on the sliding frame, and the two sets of sliding rings simultaneously drive the second coulter to slide back and forth in the first coulter. Therefore, the purpose of adjusting the width between the first coulter and the second coulter is achieved, it is ensured that the width of an excavated groove is matched with the diameter of a pipeline, the pipeline can smoothly sink and be properly supported, errors and unnecessary soil disturbance in the excavation process can be reduced, and the excavation quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine pipeline laying, in particular to a submarine pipeline jet trenching machine. Background Art

[0002] The submarine pipeline jet trencher is a device specially used for digging trenches when laying pipelines on the seabed. Its working principle is mainly to flush the seabed on both sides and the bottom of the submarine pipeline with high-pressure water flow to break the seabed soil layer or liquefy the soil to form the trench required for burying the pipeline. In this process, the high-pressure mud suction system equipped on the trencher sucks away the mud and sand generated during the trenching process to ensure the cleanliness of the trench and the smooth laying of the pipeline. The existing submarine pipeline jet trencher can basically meet the daily use needs, but there are still some shortcomings that need to be improved.

[0003] When using the existing submarine pipeline jet trencher, due to the complex and changeable submarine terrain and soil conditions, different areas may require different widths of plows to achieve the best excavation effect. The plow width on the trencher is usually fixed. If the plow width is not appropriate, the width of the excavated trench may not match the pipeline diameter, increasing the difficulty of sinking and fixing the pipeline, and may even damage the pipeline. For this reason, we propose a submarine pipeline jet trencher to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a submarine pipeline jet trenching machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a submarine pipeline jet trenching machine, comprising a sliding frame, a bracket, a submersible pump and a nozzle, a bracket is provided on the top of the sliding frame, a submersible pump is provided in the bracket, a nozzle is provided on the left side of the submersible pump, an adjustment component is provided on the left side of the sliding frame, the adjustment component comprises a movable warehouse arranged on the surface of the bracket, a bearing is provided on the inner wall of the movable warehouse, a double-headed screw rod is fixedly connected to the bearing, a brake disc is provided on the front end surface of the double-headed screw rod, a threaded rod is connected to the inner thread of the brake disc, and the other end of the threaded rod is threadedly connected to the movable warehouse, two groups of transmission blocks are threadedly connected to the double-headed screw rod, two groups of sliding rings are slidably connected to the bracket, the bottom end of the transmission block is fixedly connected to the top end of the sliding ring, a first coulter is provided at the bottom of the sliding ring, and a second coulter is provided at the bottom of the other group of sliding rings, the second coulter slides in the first coulter, and a guide component is provided on the movable warehouse.

[0006] As a further preferred embodiment of the present technical solution, the guide assembly includes a slide groove opened in the movable warehouse and the bracket, a connecting rod is provided on the top surface of the transmission block in the slide groove, a clamping plate is provided on the right side surface of the connecting rod, pulleys are rotatably provided on the corresponding side surfaces of the two groups of clamping plates, and a guide groove is provided on the bracket corresponding to the bottom surface of the clamping plate.

[0007] As a further preferred embodiment of the present technical solution, eight groups of thread grooves which are screwed together with the threaded rods are provided on the surface of the movable bin, and the eight groups of thread grooves are designed to be equally spaced.

[0008] As a further preferred embodiment of the present technical solution, the first coulter is provided with a through hole matched with the second coulter, the second coulter slides linearly in the first coulter, and the second coulter is flush with the bottom end surface of the first coulter.

[0009] As a further preferred embodiment of the present technical solution, the input end surface of the brake disc is provided with anti-slip grooves, and the brake disc is fixed to the surface of the double-headed screw by bolts.

[0010] As a further preferred embodiment of the present technical solution, semicircular grooves are provided in both groups of the clamping plates, and pulleys are built into the semicircular grooves.

[0011] As a further preferred embodiment of the present technical solution, the connecting rod is designed to be rectangular, and the sliding groove is provided as a rectangular groove adapted to the connecting rod.

[0012] The utility model provides a jet trenching machine for submarine pipelines, which has the following beneficial effects:

[0013] 1. The utility model can make the brake disc drive the double-headed screw to rotate on the bearing through the adjustment component arranged on the sliding frame, and make the rotating double-headed screw act on the two sets of transmission blocks, so that the transmission blocks synchronously drive the sliding rings to slide on the sliding frame, and the two sets of sliding rings simultaneously drive the second coulter to slide back and forth in the first coulter, so as to achieve the purpose of adjusting the width between the first coulter and the second coulter, ensure that the width of the excavated groove matches the diameter of the pipeline, so that the pipeline can sink smoothly and get proper support, and help reduce errors and unnecessary soil disturbance during the excavation process, and improve the excavation quality.

[0014] 2. The utility model uses a guide assembly arranged on the transmission block, so that the transmission block drives two groups of connecting rods to slide in the slide groove while moving, and the two groups of clamping plates clamp the pipeline, and then the pipeline passes through the guide groove and sinks into the groove, so that the guide groove drives the pulley to rotate in the slide groove, thereby ensuring the stability of the pipeline when sinking, and at the same time, the width of the first coulter and the second coulter is matched with the diameter of the pipeline, which is more conducive to the laying of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0017] Figure 3 It is a schematic diagram of the first three-dimensional cross-sectional structure of the utility model;

[0018] Figure 4 It is a second three-dimensional cross-sectional structural schematic diagram of the utility model;

[0019] Figure 5 For the utility model Figure 3 A schematic diagram of the enlarged structure at point A;

[0020] Figure 6 For the utility model Figure 4 Schematic diagram of the enlarged structure at B.

[0021] In the figure: 1. sliding frame; 2. bracket; 4. submersible pump; 5. nozzle; 6. adjustment assembly; 61. movable chamber; 62. bearing; 63. double-headed screw; 64. brake disc; 65. threaded rod; 66. transmission block; 67. sliding ring; 68. first plowshare; 69. second plowshare; 7. guide assembly; 71. slide groove; 72. connecting rod; 73. clamping plate; 74. pulley; 75. guide groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a technical solution: Figures 1 to 6 As shown, in this embodiment, a submarine pipeline jet trencher includes a sliding frame 1, a bracket 2, a submersible pump 4 and a nozzle 5. The top of the sliding frame 1 is provided with a bracket 2, the submersible pump 4 is provided in the bracket 2, the nozzle 5 is provided on the left side of the submersible pump 4, and the left side of the sliding frame 1 is provided with an adjustment component 6, the adjustment component 6 includes a movable warehouse 61 arranged on the surface of the bracket 2, a bearing 62 is provided on the inner wall of the movable warehouse 61, a double-headed screw rod 63 is fixedly connected to the bearing 62, a brake disc 64 is provided on the front end surface of the double-headed screw rod 63, a threaded rod 65 is connected to the inner thread of the brake disc 64, and the other end of the threaded rod 65 is threadedly connected to the movable warehouse 61, two groups of transmission blocks 66 are threadedly connected to the double-headed screw rod 63, two groups of sliding rings 67 are slidably connected to the bracket 2, the bottom end of the transmission block 66 is fixedly connected to the top of the sliding ring 67, a first coulter 68 is provided at the bottom of the sliding ring 67, and a second coulter 69 is provided at the bottom of the other group of sliding rings 67, and the second coulter 69 slides in the first coulter 68, and a guide component 7 is provided on the movable warehouse 61.

[0024] By means of the adjustment assembly 6 arranged on the sliding frame 1, the brake disc 64 can drive the double-headed screw 63 to rotate on the bearing 62, and the rotating double-headed screw 63 can act on the two sets of transmission blocks 66, so that the transmission blocks 66 can synchronously drive the sliding ring 67 to slide on the sliding frame 1, and the two sets of sliding rings 67 simultaneously drive the second plow cutter 69 to slide back and forth in the first plow cutter 68, thereby achieving the purpose of adjusting the width between the first plow cutter 68 and the second plow cutter 69, ensuring that the width of the excavated trench matches the diameter of the pipeline, so that the pipeline can sink smoothly and get proper support, and it helps to reduce errors and unnecessary soil disturbance during the excavation process and improve the excavation quality.

[0025] In other embodiments, the guide assembly 7 includes a slide groove 71 provided in the movable bin 61 and the bracket 2, a connecting rod 72 is provided on the top surface of the transmission block 66 in the slide groove 71, a clamping plate 73 is provided on the right surface of the connecting rod 72, a pulley 74 is rotatably provided on the corresponding side surface of the two sets of clamping plates 73, and a guide groove 75 is provided on the bracket 2 corresponding to the bottom surface of the clamping plate 73;

[0026] By means of the guide assembly 7 arranged on the transmission block 66, the transmission block 66 drives the two groups of connecting rods 72 to slide in the slide groove 71 while moving, and the two groups of clamping plates 73 clamp the pipeline, and then the pipeline passes through the guide groove 75 and sinks into the groove, so that the guide groove 75 drives the pulley 74 to rotate in the slide groove 71, thereby ensuring the stability of the pipeline when sinking, and at the same time making the width of the first coulter 68 and the second coulter 69 match the diameter of the pipeline, which is more conducive to the laying of the pipeline.

[0027] In other embodiments, the surface of the movable chamber 61 is provided with eight sets of thread grooves that are screwed with the threaded rod 65, and the eight sets of thread grooves are designed to be equally spaced.

[0028] Through this design, when the brake disc 64 is rotated to multiple angles under the rotation of the double-headed screw 63, the brake disc 64 can be limited by rotating the threaded rod 65 on the inner thread of the brake disc 64 so that the threaded rod 65 is rotated into the threaded groove on the movable chamber 61, thereby preventing the double-headed screw 63 from rotating on the bearing 62 under the external force of the brake disc 64, thereby causing the second plow 69 to slide in the first plow 68, and then the width of the second plow 69 and the first plow 68 are not equal to the diameter of the pipe.

[0029] In other embodiments, the first coulter 68 is provided with a through hole adapted to the second coulter 69, the second coulter 69 slides linearly in the first coulter 68, and the second coulter 69 is flush with the bottom end surface of the first coulter 68;

[0030] This design can improve the stability of the second plowshare 69 sliding inside the first plowshare 68, while also ensuring the flatness of the second plowshare 69 and the first plowshare 68 when they dig trenches on the seabed, thereby preventing the pipeline from sliding sideways on the ground when it sinks and contacts the ground.

[0031] In other embodiments, the input end surface of the brake disc 64 is provided with anti-skid patterns, and the brake disc 64 is fixed to the surface of the double-ended screw rod 63 by bolts;

[0032] This design can increase the friction between the operator's hand and the brake disc 64, preventing seaweed from adhering to the surface of the brake disc 64, which would cause the operator's hand to slip when using the brake disc 64.

[0033] In other embodiments, both sets of clamping plates 73 are provided with semicircular grooves, and both semicircular grooves are provided with pulleys 74;

[0034] Through this design, the two sets of clamping plates 73 can be made equal in shape to the pipe, so that the pipe contacts the surface of the pulley 74, and the pulley 74 is driven to rotate in the clamping plate 73 by the sinking of the pipe, thereby effectively reducing the damage caused by direct friction between the pipe and the clamping plate 73.

[0035] In other embodiments, the connecting rod 72 is designed to be rectangular, and the slide groove 71 is provided as a rectangular groove adapted to the connecting rod 72;

[0036] Through this design, the slide groove 71 can achieve the purpose of sliding limit of the connecting rod 72, preventing the connecting rod 72 from shaking during the sliding process in the slide groove 71, thereby improving the sliding stability of the connecting rod 72 in the slide groove 71.

[0037] The utility model provides a jet trenching machine for submarine pipelines, and the specific working principle is as follows:

[0038] When in use, first place the pipeline in the guide groove 75, then rotate the brake disc 64, so that the brake disc 64 drives the double-headed screw 63 to rotate on the bearing 62, and the rotating double-headed screw 63 acts on the two sets of transmission blocks 66, so that the transmission blocks 66 synchronously drive the sliding ring 67 to slide on the sliding frame 1, and the two sets of sliding rings 67 simultaneously drive the second plow 69 to slide back and forth in the first plow 68, so as to achieve the purpose of adjusting the width between the first plow 68 and the second plow 69, and the transmission block 66 drives the two sets of connecting rods 72 to slide in the slide groove 71 while moving, and makes the two sets of clamping plates 73 clamp the pipeline, and then drive 01 to move through the laying ship, so that the first plow 68 and the second plow 69 continuously dig trenches, and the submersible pump 4 continuously sprays the ground through the nozzle 5, so that a groove is formed on the ground, and then the pipeline passes through the guide groove 75 and sinks into the groove.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A submarine pipeline jet trenching machine, comprising a sliding frame (1), a bracket (2), a submersible pump (4) and a nozzle (5), wherein the top of the sliding frame (1) is provided with a bracket (2), the submersible pump (4) is provided inside the bracket (2), and the left side of the submersible pump (4) is provided with a nozzle (5), characterized in that: An adjustment component (6) is provided on the left side of the sliding frame (1). The adjustment component (6) comprises a movable bin (61) arranged on the surface of the bracket (2). A bearing (62) is provided on the inner wall of the movable bin (61). A double-headed screw rod (63) is fixedly connected to the bearing (62). A brake disc (64) is provided on the front end surface of the double-headed screw rod (63). A threaded rod (65) is internally threadedly connected to the brake disc (64). The other end of the threaded rod (65) is threadedly connected to the movable bin (61). Two groups of transmission blocks (66) are threadedly connected to the double-headed screw rod (63). Two groups of sliding rings (67) are slidably connected to the bracket (2). The bottom end of the transmission block (66) is fixedly connected to the top end of the sliding ring (67). A first coulter (68) is provided at the bottom of the sliding ring (67). A second coulter (69) is provided at the bottom of the other group of sliding rings (67). The second coulter (69) slides in the first coulter (68). A guide component (7) is provided on the movable bin (61).

2. A submarine pipeline jet trencher according to claim 1, characterized in that: The guide assembly (7) comprises a slide groove (71) provided in the movable bin (61) and the bracket (2); a connecting rod (72) is provided on the top surface of the transmission block (66) in the slide groove (71); a clamping plate (73) is provided on the right surface of the connecting rod (72); a pulley (74) is rotatably provided on the corresponding side surface of the two sets of the clamping plates (73); and a guide groove (75) is provided on the bracket (2) corresponding to the bottom surface of the clamping plate (73).

3. The submarine pipeline jet trencher according to claim 1, characterized in that: The surface of the movable chamber (61) is provided with eight groups of thread grooves which are screwed together with the threaded rod (65), and the eight groups of thread grooves are designed to be equally spaced.

4. The submarine pipeline jet trencher according to claim 1, characterized in that: The first coulter (68) is provided with a through hole matched with the second coulter (69); the second coulter (69) slides linearly in the first coulter (68); the second coulter (69) is flush with the bottom end surface of the first coulter (68).

5. The submarine pipeline jet trencher according to claim 1, characterized in that: The input end surface of the brake disc (64) is provided with anti-skid patterns, and the brake disc (64) is fixed to the surface of the double-ended screw rod (63) by means of bolts.

6. The submarine pipeline jet trencher according to claim 2, characterized in that: Both sets of clamping plates (73) are provided with semicircular grooves, and pulleys (74) are built into the semicircular grooves.

7. The submarine pipeline jet trencher according to claim 2, characterized in that: The connecting rod (72) is designed to be rectangular, and the sliding groove (71) is formed as a rectangular groove that matches the connecting rod (72).

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