Descending device for double water supply hoses of submarine pipeline trencher

Abstract

The invention relates to the technical field of ocean engineering, in particular to a lowering device for double water supply hoses of a submarine pipeline trencher, and aims to solve the problems that a high-pressure hose is greatly influenced by environmental load, the transverse ocean current action resistance is weak, the high-pressure hose is difficult to release and recycle, and the service life of the high-pressure hose is influenced during operation of the conventional submarine pipeline trencher. And the construction quality and efficiency are influenced. The invention provides a lowering device for double water supply hoses of a submarine pipeline trencher. The lowering device comprises a double water supply hose winch, a transmission mechanism, a rail assembly, a first high-pressure hose and a second high-pressure hose. The transmission mechanism can move along a path provided by the track assembly; the reducing cross is connected with the roller, the roller is used for winding a first high-pressure hose and a second high-pressure hose, the water inlet end of the first high-pressure hose is communicated with the first pipeline, and the water outlet end of the first high-pressure hose is communicated with the trencher; the water inlet end of the second high-pressure hose is communicated with the second pipeline, and the water outlet end of the second high-pressure hose is communicated with the trencher.

Description

Technical Field

[0001] The invention relates to the technical field of marine engineering, and in particular to a lowering device for a double water supply hose of a submarine pipeline trenching machine. Background Art

[0002] To maintain its own safety and stability and avoid damage from anchoring, trawling, etc., submarine pipelines must be buried to a reasonable depth. Usually, submarine pipeline trenchers use high-pressure hydraulic jetting to treat the seabed. The basic principle is to use high-pressure water jetting to break the soil under the pipeline to achieve the designed burial depth to protect the submarine pipeline.

[0003] Existing submarine pipeline trenchers usually use a deck pump directly connected to the trencher spray arm. The high-pressure water flow sucked by the deck pump is injected into the trencher spray arm through a high-pressure hose. When releasing / recovering the trencher, the high-pressure hose is susceptible to increased drag due to environmental loads such as wind, waves, and currents, which makes it more difficult to recover the high-pressure hose. A large number of operators are required on site to operate the high-pressure hose. During the trenching operation, the high-pressure hose is only relied on its own structural strength to resist the impact of environmental loads. Excessive deviation and swing of the high-pressure hose can easily cause damage to the hose body structure and leakage at the joints. The trencher needs to be lifted to the deck for processing, which increases additional workload.

[0004] At present, a launching bridge can also be used to assist in the release and recovery of high-pressure hoses. This method only reduces the environmental load force on the high-pressure hose and is suitable for trenching operations in shallow water areas with low flow rate and wind force. When the water depth is large and the environmental load is severe, the high-pressure hose lowered from the deck is long, and the single point lifting of the single launching bridge in the middle of the hose cannot maintain the shape of the hose well. During the lowering and recovery of the trencher, quick and convenient operations cannot be performed. Summary of the invention

[0005] The purpose of the present invention is to provide a lowering device for a dual water supply hose of a submarine pipeline trenching machine, so as to solve the problems that the high-pressure hose of the submarine pipeline trenching machine is greatly affected by the environmental load during operation, has a weak ability to resist the action of lateral ocean currents, and is difficult to release and recover, thus affecting the construction quality and efficiency.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0007] A lowering device for a dual water supply hose of a submarine pipeline trenching machine comprises: a dual water supply hose winch, a transmission mechanism, a track assembly, a first high-pressure hose and a second high-pressure hose;

[0008] The track assembly is arranged on the operating mother ship;

[0009] The transmission mechanism is connected to the track assembly, and the transmission mechanism can move along the path provided by the track assembly;

[0010] The dual water supply hose winch is connected to the transmission mechanism, and the dual water supply hose winch includes a support base, a drum and a reducing cross, the reducing cross is connected to the drum, the drum is used to wind the first high-pressure hose and the second high-pressure hose, and the drum can rotate around its own axis;

[0011] The reducing cross is provided with a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, the first pipeline is communicated with the third pipeline, the second pipeline is communicated with the fourth pipeline, the third pipeline is communicated with the fourth pipeline, the first pipeline and the second pipeline are used for water outlet, and the third pipeline and the fourth pipeline are used for water inlet;

[0012] The water inlet end of the first high-pressure hose is in communication with the first pipeline, and the water outlet end of the first high-pressure hose is in communication with the spray arm of the trencher;

[0013] The water inlet end of the second high-pressure hose is communicated with the second pipeline, and the water outlet end of the second high-pressure hose is communicated with the spray arm of the trencher.

[0014] Further, the dual water supply hose winch also includes a first drive motor and a first transmission gear;

[0015] The first transmission gear is coaxially connected to the drum;

[0016] The first drive motor is connected to the support base, and a pinion is connected to the output end of the first drive motor. The pinion is meshed with the first transmission gear. The first drive motor drives the pinion to rotate, thereby driving the first transmission gear to rotate.

[0017] Further, the transmission mechanism includes a second transmission gear, a running wheel, a support rod and a sliding base, and the track assembly includes a guide rail;

[0018] The sliding base is connected to the bottom of the supporting base, and the supporting rod is connected below the sliding base;

[0019] The running wheel is rotatably connected to the support rod, and the running wheel is arranged on the top of the guide rail;

[0020] The guide rail is provided with a rack along its length direction, the second transmission gear is meshed with the rack, and the second transmission gear can rotate along its own axis to make the running wheel move along the length direction of the guide rail to drive the sliding base to move.

[0021] Furthermore, the transmission mechanism also includes a second drive motor and a transmission rod;

[0022] The second driving motor is connected to the top of the sliding base, and the output end of the second driving motor is connected to the transmission rod;

[0023] The transmission rod is connected with the transmission gear.

[0024] Furthermore, the transmission mechanism also includes a limit baffle;

[0025] The limit baffle is connected to the bottom of the sliding base and is arranged on the outside of the guide rail.

[0026] Furthermore, the track assembly also includes rollers;

[0027] A plurality of rollers are evenly spaced and arranged along the length direction of the guide rail.

[0028] Furthermore, the track assembly also includes a bottom plate;

[0029] The guide rail and the roller are both arranged above the bottom plate.

[0030] Further, it also includes a water slide;

[0031] The water entry slide is connected to one end of the track assembly close to the trencher and is used to support the first high-pressure hose and the second high-pressure hose.

[0032] Furthermore, the water slide includes a curved arc plate and a limiting horizontal plate;

[0033] The curved arc plate is connected to one end of the bottom plate close to the trencher, and the limiting horizontal plate is connected to the side of the curved arc plate.

[0034] Furthermore, the reducing cross also includes a first reducing watertight ring, a second reducing watertight ring, a first boss flange and a second boss flange;

[0035] The first variable diameter watertight ring is connected to the water inlet end of the third pipe;

[0036] The second variable diameter watertight ring is connected to the water inlet end of the fourth pipe;

[0037] The first boss flange is arranged at the water outlet end of the first pipe;

[0038] The second boss flange is arranged at the water outlet end of the second pipe.

[0039] Based on the above technical solutions, the technical effects that can be achieved by the present invention are:

[0040] The first high-pressure hose and the second high-pressure hose are wound around the drum, and the drum is rotated to achieve the release and recovery function of the high-pressure hose on the drum. By setting a different-diameter four-way joint, the spray water flow pressure is increased, and the single and double water outlet channel modes are switched to provide the trencher with adjustable spray volume and spray mode. The double water supply hose winch can move freely on the track assembly through the transmission mechanism to ensure the release length of the high-pressure hose and provide tension for the high-pressure hose to reduce the deformation and offset caused by the force of the environmental load on the high-pressure hose. This solves the current problems of the high-pressure hose of the submarine pipeline trencher being greatly affected by the environmental load during operation, the weak ability to resist the action of lateral ocean currents, and the difficulty in releasing and recovering the high-pressure hose, which affects the construction quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 A working principle diagram of a lowering device for a dual water supply hose of a submarine pipeline trenching machine provided by an embodiment of the present invention;

[0043] Figure 2 It is a schematic diagram of the structure of the lowering device of the double water supply hose of the submarine pipeline trencher;

[0044] Figure 3 It is a schematic diagram of the structure of a double water supply hose winch;

[0045] Figure 4 It is a structural schematic diagram of a reducing cross;

[0046] Figure 5 It is a structural schematic diagram of the transmission mechanism;

[0047] Figure 6 is a schematic diagram of the structure of the track assembly;

[0048] Figure 7 It is a structural schematic diagram of the water slide.

[0049] Icons: 100-double water supply hose winch; 110-support base; 120-drum; 130-reducing four-way; 131-first pipeline; 131a-first flange butterfly valve; 132-second pipeline; 132a-second flange butterfly valve; 133-third pipeline; 134-fourth pipeline; 135-first reducing watertight ring; 136-second reducing watertight ring; 137-first boss flange; 138-second boss flange; 139-gate valve; 140-first drive motor; 150-first transmission gear; 200-transmission mechanism; 210- The second transmission gear; 220-walking wheel; 230-support rod; 240-sliding base; 250-second drive motor; 260-transmission rod; 270-limit baffle; 300-track assembly; 310-guide rail; 320-roller; 330-bottom plate; 400-first high-pressure hose; 500-second high-pressure hose; 600-water slide; 610-curved arc plate; 620-limiting horizontal plate; 700-operating mother ship; 800-trencher; 900-deck pump; 1100-third high-pressure hose; 1200-fourth high-pressure hose. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0053] The present invention provides a lowering device for a dual water supply hose of a submarine pipeline trenching machine, comprising: a dual water supply hose winch 100, a transmission mechanism 200, a track assembly 300, a first high-pressure hose 400 and a second high-pressure hose 500; the track assembly 300 is arranged on an operation mother ship 700; the transmission mechanism 200 is connected to the track assembly 300, and the transmission mechanism 200 can move along a path provided by the track assembly 300; the dual water supply hose winch 100 is connected to the transmission mechanism 200, and the dual water supply hose winch 100 comprises a supporting base 110, a drum 120 and a reducing cross 130, the reducing cross 130 is connected to the drum 120, the drum 120 is used to wind the first high-pressure hose 400 and the second high-pressure hose 500, and the drum 1 20 can rotate around its own axis; the reducing cross 130 is provided with a first pipe 131, a second pipe 132, a third pipe 133 and a fourth pipe 134, the first pipe 131 is connected to the third pipe 133, the second pipe 132 is connected to the fourth pipe 134, the third pipe 133 is connected to the fourth pipe 134, the first pipe 131 and the second pipe 132 are used for water outlet, and the third pipe 133 and the fourth pipe 134 are used for water intake; the water inlet end of the first high-pressure hose 400 is connected to the first pipe 131, and the water outlet end of the first high-pressure hose 400 is connected to the trencher 800; the water inlet end of the second high-pressure hose 500 is connected to the second pipe 132, and the water outlet end of the second high-pressure hose 500 is connected to the trencher 800.

[0054] The first high-pressure hose 400 and the second high-pressure hose 500 are wound around the drum 120, and the drum 120 is rotated to achieve the release and recovery function of the high-pressure hose on the drum 120. By setting a reducing cross 130, the spray water pressure is increased, and the single and double water outlet channel modes are switched to provide the trencher 800 with adjustable spray volume and spray mode. The dual water supply hose winch 100 can move freely on the track assembly 300 through the transmission mechanism 200 to ensure the release length of the high-pressure hose and provide tension for the high-pressure hose to reduce the deformation and offset caused by the lateral force of the cross flow on the high-pressure hose, thereby solving the problems that the high-pressure hose of the submarine pipeline trencher 800 is greatly affected by the environmental load during operation, has a weak ability to resist the action of the lateral ocean current, and is difficult to release and recover, which affects the construction quality and efficiency.

[0055] The following combination Figure 1-Figure 7 The structure and shape of the lowering device for the dual water supply hose of the submarine pipeline trencher provided in this embodiment are described in detail.

[0056] Regarding the shape and structure of the dual water supply hose winch 100, in detail:

[0057] like Figure 2 and Figure 3As shown, the dual water supply hose winch 100 includes a support base 110, a drum 120 and a reducing cross 130. The support base 110 provides support for the main body of the dual channel water supply hose winch. The reducing cross 130 is connected to the drum 120. The drum 120 is used to wind the first high pressure hose 400 and the second high pressure hose 500. The drum 120 can rotate around its own axis.

[0058] Among them, the reducing cross 130 is provided with a first pipe 131, a second pipe 132, a third pipe 133 and a fourth pipe 134. The first pipe 131 is vertically connected to the third pipe 133 and communicates with the third pipe 133. The second pipe 132 is vertically connected to the fourth pipe 134 and communicates with the fourth pipe 134. The third pipe 133 is communicated with the fourth pipe 134. The first pipe 131 and the second pipe 132 are used for water outlet, and the third pipe 133 and the fourth pipe 134 are used for water inlet.

[0059] like Figure 4As shown, the reducing cross 130 further includes a first reducing watertight ring 135 , a second reducing watertight ring 136 , a first boss flange 137 and a second boss flange 138 . The first reducing watertight ring 135 is connected to the water inlet end of the third pipeline 133, the water outlet of the third high-pressure hose 1100 is connected to the first reducing watertight ring 135 through a flange, the water inlet of the third high-pressure hose 1100 extends into the water, and the third high-pressure hose 1100 is provided with a deck pump 900, and the high-pressure water sucked by the deck pump 900 is injected into the dual water supply hose winch 100 through the third high-pressure hose 1100; the second reducing watertight ring 136 is connected to the water inlet end of the fourth pipeline 134, the water outlet of the fourth high-pressure hose 1200 is connected to the second reducing watertight ring 136 through a flange, and the water inlet of the fourth high-pressure hose 1200 extends into the water, and the fourth high-pressure hose 1200 is provided with a deck pump 900, and the high-pressure water sucked by the deck pump 900 is injected into the dual water supply hose winch 100 through the fourth high-pressure hose 1200. The first boss flange 137 is provided at the outlet end of the first pipe 131, the water inlet end of the first high-pressure hose 400 is connected to the first boss flange 137 by bolts, and the water outlet end of the first high-pressure hose 400 is communicated with the trencher 800; the second boss flange 138 is provided at the outlet end of the second pipe 132, the water inlet end of the second high-pressure hose 500 is connected to the second boss flange 138 by bolts, and the water outlet end of the second high-pressure hose 500 is communicated with the trencher 800. The third pipe 133 and the fourth pipe 134 are connected to form a main pipe, and a gate valve 139 is provided between the third pipe 133 and the fourth pipe 134, that is, the gate valve 139 is arranged in the middle position of the main pipe. The first pipeline 131 is provided with a first flange butterfly valve 131a for adjusting the high-pressure water flow inside the first pipeline 131, and the second pipeline 132 is provided with a second flange butterfly valve 132a for adjusting the high-pressure water flow inside the second pipeline 132, so as to enable the submarine pipeline trenching machine 800 to handle special seabed geological sections, such as sand slopes and sand ridges, so as to achieve the same overall buried depth of the submarine pipeline. The first boss flange 137 is connected to the first high-pressure hose 400, and the second boss flange 138 is connected to the second high-pressure hose 500 to ensure that high-pressure water is injected into the submarine pipeline trenching machine 800 through the high-pressure hose, so as to achieve the hydraulic jetting, shearing and breaking ability under high pressure and large flow.

[0060] Among them, by setting the reducing cross 130, the single and double channels of high-pressure water are opened / closed. Specifically, when the operation requires a single water outlet channel, the first flange butterfly valve 131a or the second flange butterfly valve 132a is opened, and when the operation requires a double water outlet channel, the first flange butterfly valve 131a and the second flange butterfly valve 132a are opened at the same time. It should be noted that when the single channel or double channel is operated, the water inlet and the water inlet method can be selected according to the needs. When the single or double channel is operated, the gate valve 139 can be opened or closed according to the water demand and water pressure. For example, the first flange butterfly valve 131a or the second flange butterfly valve 132a is opened at the water outlet, and the gate valve 139 can be opened at the water inlet, so that the third pipeline 133 and the fourth pipeline 134 can be double-ported. When the double channel is operated, the first flange butterfly valve 131a and the second flange butterfly valve 132a are opened at the same time, and the gate valve 139 is opened, so that the third pipeline 133 and the fourth pipeline 134 can be double-ported.

[0061] In order to drive the drum 120 to rotate, the dual water supply hose winch 100 is also provided with a first drive motor 140 and a first transmission gear 150, and the first transmission gear 150 is coaxially connected to the drum 120; the first drive motor 140 is connected to the support base 110, and the output end of the first drive motor 140 is connected to a pinion gear, which is meshed with the first transmission gear 150. The first drive motor 140 drives the pinion gear to rotate, thereby driving the first transmission gear 150 to rotate, and then driving the drum 120 to rotate around its own axis.

[0062] Regarding the shape and structure of the transmission mechanism 200 and the track assembly 300, in detail:

[0063] like Figure 5 and Figure 6 As shown, the track assembly 300 is arranged on the operating mother ship 700, the transmission mechanism 200 is connected to the track assembly 300, and the dual water supply hose winch 100 is connected to the transmission mechanism 200. The transmission mechanism 200 can move along the path provided by the track assembly 300 to drive the dual water supply hose winch 100 to move.

[0064] Specifically, the transmission mechanism 200 includes a second transmission gear 210, a running wheel 220, a support rod 230 and a sliding base 240. The sliding base 240 is connected to the bottom of the support base 110. The support rod 230 is connected below the sliding base 240. Both ends of the support rod 230 are rotatably connected to the running wheel 220. The track assembly 300 includes a guide rail 310. The running wheel 220 is arranged on the top of the guide rail 310. The guide rail 310 is provided with a rack along its length direction. The second transmission gear 210 is meshed with the rack. The second transmission gear 210 can rotate along its own axis so that the running wheel 220 moves along the length direction of the guide rail 310 to drive the sliding base 240 to move.

[0065] In order to drive the second transmission gear 210 to rotate, the transmission mechanism 200 further includes a second driving motor 250 and a transmission rod 260. The second driving motor 250 is connected to the top of the sliding base 240. The output end of the second driving motor 250 is connected to the transmission rod 260, and the transmission rod 260 is connected to the transmission gear. The second driving motor 250 drives the transmission rod 260 to rotate through electricity, so that the second transmission gear 210 rotates, and the teeth on the guide rail 310 of the second transmission gear 210 are engaged, so as to provide power for the dual water supply hose winch 100 to move on the track.

[0066] In an optional embodiment, the number of support rods 230 is determined according to actual needs, and the support rods 230 and the running wheels 220 jointly support the weight of the main structure of the dual water supply hose winch 100.

[0067] In an optional embodiment, the transmission mechanism 200 further includes a limit baffle 270 , which is welded and fixed to the sliding base 240 and arranged at the outer side of the guide rail 310 to limit the lateral displacement of the sliding base 240 on the guide rail 310 .

[0068] In order to provide support for the first high-pressure hose 400 and the second high-pressure hose 500 and reduce friction, the track assembly 300 also includes rollers 320 and a base plate 330. The guide rail 310 and the rollers 320 are both arranged above the base plate 330. Multiple groups of rollers 320 are evenly spaced along the length direction of the guide rail 310, and the rollers 320 are spaced apart on the base plate 330.

[0069] In an optional embodiment, if Figure 7 As shown, the present embodiment is further provided with a water entry slide 600, which is connected to one end of the track assembly 300 close to the trencher 800, and is used to support the first high-pressure hose 400 and the second high-pressure hose 500. Specifically, the water entry slide 600 includes a curved arc plate 610 and a limit transverse plate 620, the curved arc plate 610 is connected to one end of the bottom plate 330 close to the trencher 800, and the limit transverse plate 620 is connected to the side of the curved arc plate 610. The curved arc plate 610 is narrow at the top and wide at the bottom, and is used to support the first high-pressure hose 400 and the second high-pressure hose 500, and reduce the shortcomings of the first high-pressure hose 400 and the second high-pressure hose 500 at the side of the working mother ship 700, such as too small bending radius, so as to ensure that the first high-pressure hose 400 and the second high-pressure hose 500 meet the minimum bending radius requirements. The limiting transverse plates 620 are arranged on both sides of the curved arc plate 610 to limit the lateral displacement of the high-pressure hose and reduce the force caused by the lateral sea current on the high-pressure hose.

[0070] In an optional embodiment, the first high-pressure hose 400 and the second high-pressure hose 500 are 6-inch high-pressure hoses, and the third high-pressure hose 1100 and the fourth high-pressure hose 1200 are 8-inch high-pressure hoses.

[0071] The working principle of the dual water supply hose lowering device for the submarine pipeline trenching machine provided in this embodiment is as follows: the dual water supply hose winch 100 is arranged on the working mother ship 700, and the high-pressure water sucked by the deck pump 900 is injected into the dual water supply hose winch 100 through the third high-pressure hose 1100 and the fourth high-pressure hose 1200. The dual water supply hose winch 100 moves freely on the guide rail 310 through the transmission mechanism 200 to ensure the release length of the first high-pressure hose 400 and the second high-pressure hose 500, and at the same time provides tension for the first high-pressure hose 400 and the second high-pressure hose 500 to reduce the deformation and offset caused by the lateral force of the environmental load on the first high-pressure hose 400 and the second high-pressure hose 500. The high-pressure water in the dual water supply hose winch 100 increases the spray pressure through the reducing cross 130, and can also switch the single and double channel modes to provide the trenching machine 800 with adjustable spray volume and spray mode.

[0072] The lowering device for the dual water supply hose of the submarine pipeline trenching machine provided in this embodiment is mainly used for the core equipment of the submarine pipeline or submarine cable trenching machine 800. The device adopts an integrated design, occupies a small deck area, and has strong applicability. The release and recovery of the high-pressure hose on the traditional submarine pipeline trenching machine 800 can only be carried out by manpower or with the assistance of the launching bridge. A large number of workers are required on site to pull, and the arrangement of the high-pressure hose requires a large deck area. A larger operating ship needs to be relocated to meet the placement of the supporting equipment of the submarine pipeline trenching machine 800. The device solves the difficulties in the release and recovery of the high-pressure hose, improves the ability of the high-pressure hose to resist environmental loads, and has the continuous operation conditions of the submarine pipeline trenching machine 800, meeting the requirements of cost saving and efficiency improvement.

[0073] In addition, the position of the dual water supply hose winch 100 can be appropriately adjusted on the guide rail 310 to reduce the arrangement amount and release length of the high-pressure hose on the drum 120, ensure that the release length of the high-pressure hose is controlled within a reasonable range, and further reduce the force of the environmental load on the high-pressure hose. This device can realize the free switching of single / dual channel water supply hoses, ensure the shearing and breaking ability under high pressure and large flow, and at the same time, the rollers 320 and the water entry slide 600 are arranged at intervals on the track. Compared with the construction method of placing the high-pressure hose directly on the deck, the friction and drag force on the high-pressure hose are reduced, the service life of the high-pressure hose and the sealing of the joints are improved, and the process requirements of the continuous operation of the trenching machine 800 are met, which will further improve the applicability of the submarine pipeline trenching machine 800 and the overall operation capacity of the system.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lowering device for a dual water supply hose of a submarine pipeline trenching machine, characterized in that: include: A double water supply hose winch (100), a transmission mechanism (200), a track assembly (300), a first high-pressure hose (400) and a second high-pressure hose (500); The track assembly (300) is arranged on the operating mother ship (700); The transmission mechanism (200) is connected to the track assembly (300), and the transmission mechanism (200) is capable of moving along a path provided by the track assembly (300); The dual water supply hose winch (100) is connected to the transmission mechanism (200), and comprises a support base (110), a drum (120) and a reducing cross (130), wherein the reducing cross (130) is connected to the drum (120), and the drum (120) is used to wind the first high-pressure hose (400) and the second high-pressure hose (500), and the drum (120) can rotate around its own axis; The reducing cross (130) is provided with a first pipeline (131), a second pipeline (132), a third pipeline (133) and a fourth pipeline (134); the first pipeline (131) is in communication with the third pipeline (133); the second pipeline (132) is in communication with the fourth pipeline (134); the third pipeline (133) is in communication with the fourth pipeline (134); the first pipeline (131) and the second pipeline (132) are used for water outlet; the third pipeline (133) and the fourth pipeline (134) are used for water inlet; The water inlet end of the first high-pressure hose (400) is in communication with the first pipeline (131), and the water outlet end of the first high-pressure hose (400) is in communication with the trenching machine (800); The water inlet end of the second high-pressure hose (500) is in communication with the second pipeline (132), and the water outlet end of the second high-pressure hose (500) is in communication with the trencher (800).

2. The lowering device for the dual water supply hose of the submarine pipeline trenching machine according to claim 1 is characterized in that: The dual water supply hose winch (100) further comprises a first drive motor (140) and a first transmission gear (150); The first transmission gear (150) is coaxially connected to the drum (120); The first drive motor (140) is connected to the support base (110); the output end of the first drive motor (140) is connected to a pinion gear, the pinion gear is meshed with the first transmission gear (150); the first drive motor (140) drives the pinion gear to rotate, thereby driving the first transmission gear (150) to rotate.

3. The lowering device for the dual water supply hose of the submarine pipeline trenching machine according to claim 1 is characterized in that: The transmission mechanism (200) comprises a second transmission gear (210), a running wheel (220), a support rod (230) and a sliding base (240), and the track assembly (300) comprises a guide rail (310); The sliding base (240) is connected to the bottom of the supporting base (110), and the supporting rod (230) is connected below the sliding base (240); The running wheel (220) is rotatably connected to the support rod (230), and the running wheel (220) is arranged on the top of the guide rail (310); The guide rail (310) is provided with a rack along its length direction, the second transmission gear (210) is meshed with the rack, and the second transmission gear (210) can rotate along its own axis to enable the running wheel (220) to move along the length direction of the guide rail (310), thereby driving the sliding base (240) to move.

4. The lowering device for the dual water supply hose of the submarine pipeline trenching machine according to claim 3 is characterized in that: The transmission mechanism (200) further includes a second driving motor (250) and a transmission rod (260); The second driving motor (250) is connected to the top of the sliding base (240), and the output end of the second driving motor (250) is connected to the transmission rod (260); The transmission rod (260) is connected to the transmission gear.

5. The lowering device for the dual water supply hose of the submarine pipeline trenching machine according to claim 3 is characterized in that: The transmission mechanism (200) further includes a limit baffle (270); The limiting baffle (270) is connected to the bottom of the sliding base (240) and is arranged on the outside of the guide rail (310).

6. The lowering device for the dual water supply hose of the submarine pipeline trenching machine according to claim 3 is characterized in that: The track assembly (300) further includes a roller (320); A plurality of rollers (320) are evenly spaced and arranged along the length direction of the guide rail (310).

7. The lowering device for the dual water supply hose of the submarine pipeline trenching machine according to claim 6 is characterized in that: The track assembly (300) further includes a bottom plate (330); The guide rail (310) and the roller (320) are both arranged above the bottom plate (330).

8. The lowering device for the dual water supply hose of the submarine pipeline trenching machine according to claim 7 is characterized in that: Also included is a water slide (600); The water entry slide (600) is connected to one end of the track assembly (300) close to the trencher (800) and is used to support the first high-pressure hose (400) and the second high-pressure hose (500).

9. The lowering device for the dual water supply hose of the submarine pipeline trenching machine according to claim 8 is characterized in that: The water slide (600) comprises a curved arc plate (610) and a limiting horizontal plate (620); The curved arc plate (610) is connected to one end of the bottom plate (330) close to the trench digger (800), and the limiting horizontal plate (620) is connected to the side of the curved arc plate (610).

10. The lowering device for the dual water supply hose of the submarine pipeline trenching machine according to claim 1 is characterized in that: The reducing cross (130) further comprises a first reducing watertight ring (135), a second reducing watertight ring (136), a first boss flange (137) and a second boss flange (138); The first variable diameter watertight ring (135) is connected to the water inlet end of the third pipe (133); The second variable diameter watertight ring (136) is connected to the water inlet end of the fourth pipe (134); The first boss flange (137) is arranged at the water outlet end of the first pipe (131); The second boss flange (138) is arranged at the water outlet end of the second pipe (132).

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