High efficiency high strength jet suction combined reamer

Abstract

The application discloses a high-efficiency high-strength jet suction type combined reamer, which comprises a sliding shoe, a fixing seat, a hydraulic push-pull rod, a jet suction assembly, a fixed frame, a mud suction port, a mud suction pipe, a mud discharge pipe and a jet pump.

Description

Technical Field

[0001] This invention relates to the field of seabed cutting technology, specifically to a high-efficiency, high-intensity jet suction combined auger. Background Technology

[0002] There are generally two types of existing cable laying equipment: ① hydraulic jet type and ② mechanical plow type. Among them, the hydraulic jet type is mainly used to excavate seabed with weak soil strength (soil strength less than 80 kPa), and cannot be used for soil with high strength. The mechanical plow type can excavate hard soil, but too much soil is mixed in the excavated trench, which seriously affects the trench forming quality and trenching efficiency. Summary of the Invention

[0003] The present invention aims to solve at least one of the problems in the prior art.

[0004] The purpose of this invention is to propose a high-efficiency, high-intensity jet suction combined auger.

[0005] According to an embodiment of the present invention, a high-efficiency, high-strength jet suction combined cutterhead includes: a skid shoe abutting against the seabed; a fixed base connected to the skid shoe; a jet suction assembly including: a fixed frame connected to the fixed base via a hinge shaft; a mud suction port connected to the fixed frame via a connecting pipe; a mud suction pipe communicating with the mud suction port; a mud discharge pipe communicating with the mud suction pipe, the mud suction pipe being disposed on the upper side of the seabed; and a jet pump connected to the mud discharge pipe via a venturi tube. The fixed frame includes: a hydraulic push-pull rod, one end of which is connected to the slipper, and the other end of which is connected to the fixed frame; high-pressure jet pipes are provided on the left and right sides of the front of the slipper, and multiple nozzles are provided on the high-pressure jet pipes, which are connected to the jet pump; a reamer assembly, which includes: a waterproof motor connected to the fixed frame; a gearbox, the output shaft of which meshes with the gearbox; and a counter-rotating winch, which meshes with the output end of the gearbox, the counter-rotating winch including two winch sections.

[0006] As set up above, under the action of the hydraulic push-pull rod, the jet suction assembly extends into the trench of the seabed driven by the fixed frame, thereby increasing the adjustment range of the jet suction assembly to adapt to trenching of seabeds with different soil types.

[0007] According to one embodiment of the present invention, two slippers are provided, and the jet suction assembly is disposed between the two slippers.

[0008] According to one embodiment of the present invention, the mud suction pipe, the mud discharge pipe, the venturi tube, and the jet pump are each configured as two.

[0009] According to one embodiment of the present invention, the mud extraction port is connected to one of the mud extraction pipes via a first bend, and the mud extraction port is connected to another of the mud extraction pipes via a second bend.

[0010] According to one embodiment of the present invention, the gearbox includes: a first input bevel gear connected to the output shaft of the waterproof motor; an intermediate shaft on which a first intermediate bevel gear is disposed, a second intermediate bevel gear disposed at one end of the intermediate shaft near the first intermediate bevel gear, and a third intermediate bevel gear disposed at one end of the intermediate shaft away from the first intermediate bevel gear; a first output bevel gear meshing with the third intermediate bevel gear, the output end of the first output bevel gear being connected to one of the winches; and a second output bevel gear meshing with the second intermediate bevel gear, the output end of the second output bevel gear being connected to another of the winches.

[0011] According to one embodiment of the present invention, the winch section includes: a winch rotating shaft connected to the first output bevel gear or the second output bevel gear; a support plate, the mud guide plate being arranged circumferentially along the winch rotating shaft; and a mud guide plate being arranged along the support plate, a cutter arm being provided on one side of the mud guide plate, and a plurality of reamers being provided on the cutter arm.

[0012] According to one embodiment of the present invention, the high-efficiency and high-intensity jet suction combined auger further includes a support base, which is disposed on one side of the fixed base on the slipper, and the high-pressure jet tube is connected to the support base through a bent tube.

[0013] According to one embodiment of the present invention, the jet pump is connected to the venturi tube via a third bend. Attached Figure Description

[0014] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the invention. Wherein: Figure 1 This is a schematic diagram of the working state structure of an embodiment of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the first aspect of an embodiment of the present invention; Figure 3 This is a three-dimensional structural schematic diagram of the second aspect of an embodiment of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of a third aspect of an embodiment of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of the fourth aspect of an embodiment of the present invention; Figure 6 This is a three-dimensional structural schematic diagram of the fifth aspect of an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the winch in an embodiment of the present invention; Figure 8 This is a schematic diagram of the internal structure of the gearbox in an embodiment of the present invention.

[0015] In the picture: 100-High-efficiency, high-strength jet suction-type combined reamer; 110-Slipper; 111-Forward tilting plate; 120-Hydraulic push-pull rod; 130-Fixed base; 140-High-pressure jet pipe; 141-Nozzle; 142-Support base; 143-Bending pipe; 200-Reamer assembly; 210-Waterproof motor; 220-Gearbox; 221-First input bevel gear; 222-First output bevel gear; 223-Second output bevel gear; 224-Intermediate shaft; 2241-First intermediate bevel gear; 2242-Second intermediate bevel gear. Gear, 2243-Second intermediate bevel gear, 230-Counter-rotating winch, 231-Winch rotating shaft, 232-Guide plate, 2321-Cutter arm, 2322-Reamer, 233-Support plate, 300-Jet suction assembly, 310-Dumping port, 311-Connecting pipe, 3111-First bend, 3112-Second bend, 320-Dumping pipe, 330-Dumping pipe, 340-Venturi tube, 350-Jet pump, 351-Third bend, 360-Fixing frame, 400-Seabed, 410-Trench. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0017] like Figures 1 to 8As shown, the high-efficiency, high-strength jet suction combined cutterhead 100 according to an embodiment of the present invention includes a sliding shoe 110, a fixed base 130, a hydraulic push-pull rod 120, and a jet suction assembly 300. The sliding shoe abuts against the seabed 400, and a forward tilting plate 111 is provided at the front end of the sliding shoe, which makes the sliding shoe move more smoothly and stably along the seabed; the fixed base 130 is connected to the sliding shoe 110; one end of the hydraulic push-pull rod 120 is connected to the sliding shoe 110, and the other end of the hydraulic push-pull rod 120 is connected to the fixed frame 360; the jet suction assembly 300 includes: a fixed frame 360, a mud suction port 310, a mud suction pipe 320, a mud discharge pipe 330, and a jet pump 350. The fixed frame 360 ​​is connected to the fixed base 130 via a hinge shaft. Preferably, the connection position of the hinge shaft on the fixed base and the connection position of the end of the hydraulic push-pull rod away from the slipper on the fixed base are spaced apart from each other. The sludge suction port 310 is connected to the fixed frame 360 ​​via a connecting pipe. The suction port extends into the trench 410 of the seabed 400. Preferably, the seabed is the underwater ground, and the trench here is formed by the rotation of the winch to break through the seabed. The sludge suction pipe 320 is connected to the sludge suction port. The sludge discharge pipe 330 is connected to the sludge suction pipe 320. The sludge suction pipe is located on the upper side of the seabed. The jet pump 350 is connected to the sludge discharge pipe via a venturi tube 340. The jet pump is connected to the fixed frame.

[0018] As set up above, under the action of the hydraulic push-pull rod, the jet suction assembly extends into the trench of the seabed driven by the fixed frame, thereby increasing the adjustment range of the jet suction assembly to adapt to trenching of seabeds with different soil types.

[0019] Furthermore, there are two slippers 110, and the jet suction assembly 300 is disposed between the two slippers.

[0020] Furthermore, the mud suction pipe 320, the mud discharge pipe 330, the venturi pipe 340, and the jet pump 350 are each configured in pairs.

[0021] Furthermore, the mud extraction port 310 is connected to one of the mud extraction pipes via a first bend 3111, and the mud extraction port 310 is connected to another mud extraction pipe via a second bend 3112.

[0022] Furthermore, a high-pressure jet pipe 140 is provided on one side of the slipper 110, and a plurality of nozzles 141 are provided on the high-pressure jet pipe. The high-pressure jet pipe is connected to the jet pump 350.

[0023] Furthermore, the high-efficiency, high-intensity jet suction combined cutterhead 100 also includes a reamer assembly located at the front of the sludge discharge port. This reamer assembly includes a waterproof motor 210, a gearbox 220, and a counter-rotating auger 230. The waterproof motor 210 is connected to the fixed frame 130; its output shaft meshes with the gearbox 220; and the counter-rotating auger 230 meshes with the output end of the gearbox 220. The counter-rotating auger 230 includes two auger sections.

[0024] Since the reamer assembly is also connected to the fixed frame, both the jet suction assembly and the reamer assembly have a certain range of adjustment under the action of the hydraulic push-pull rod.

[0025] Further, the gearbox 220 includes: a first input bevel gear 221, an intermediate shaft 224, a first output bevel gear 222, and a second output bevel gear 223. The first input bevel gear 221 is connected to the output shaft of the waterproof motor; the intermediate shaft 224 is provided with the first intermediate bevel gear 2241, the intermediate shaft is provided with the second intermediate bevel gear 2242 at one end near the first intermediate bevel gear, and the intermediate shaft is provided with the third intermediate bevel gear 2243 at the other end away from the first intermediate bevel gear; the first output bevel gear meshes with the third intermediate bevel gear, the output end of the first output bevel gear 222 is connected to one of the winches; the second output bevel gear meshes with the second intermediate bevel gear, and the output end of the second output bevel gear 223 is connected to another winch.

[0026] Furthermore, the winch section includes: a winch rotation shaft 231, a support plate 233, and a guide plate 232. The winch rotation shaft 231 is connected to the first output bevel gear 222 or the second output bevel gear 223; the guide plate 232 is arranged circumferentially along the winch rotation shaft; the guide plate is arranged along the length direction of the support plate 233, and a cutter arm 2321 is provided on one side of the guide plate, on which a plurality of reamers 2322 are provided.

[0027] Furthermore, the high-efficiency and high-strength jet suction combined auger 100 also includes a support base 142, which is located on one side of the fixed base 130 on the slipper 110, and the high-pressure jet pipe 140 is connected to the support base through a bent pipe 141.

[0028] Furthermore, the jet pump 350 is connected to the venturi tube 340 via a third bend 351.

[0029] The working process of this invention embodiment is as follows: When the invention arrives at the construction site, it is lowered into the water by the hoisting action of the transport ship. After contacting the seabed surface, the angle of the vortex winch is adjusted according to the predetermined excavation depth.

[0030] The maximum trenching depth is reached when the counter-rotating winch and the sliding shoe are perpendicular to each other at 90 degrees. The angle between the counter-rotating winch and the sliding shoe is adjusted via hydraulic push-pull rods on both sides of the sliding shoe. The symmetrical cutting action of the counter-rotating winch counteracts unbalanced deflection torque, ensuring smooth operation.

[0031] During underwater trenching operations, the present invention involves creating a trench on a flat seabed. The trench is created while the operator moves forward and simultaneously pumps out the mud-water mixture, making it an integrated operation.

[0032] The high-pressure jet pipes on the left and right sides of the front of the skid are used to spray high-pressure water. The high-pressure jet is used to pre-ditch and pre-break the hard soil layer on the seabed surface, which is conducive to the excavation of deep soil. The high-pressure jet water comes from the jet pump, and the high-pressure jet pipe is connected to the jet pump through a rubber hose.

[0033] During the rotation of the counter-rotating winch, the seabed soil is mechanically cut, and the resulting soil enters the winch under the action of the counter-rotating winch. The cutter breaks up the soil and gathers it into the winch. Next, under the suction of the top of the counter-rotating winch, the soil and the surrounding water are mixed into mud, which is finally transported away through the venturi pipe.

[0034] Compared with the prior art, the embodiments of the present invention have the following characteristics: The bottom-mounted combined reamer assembly offers high soil breaking efficiency. Its counter-rotating structure counteracts the unbalanced torque generated during the rotation of a single reamer, ensuring stability during trenching and allowing for precise control of the trenching direction.

[0035] The high-pressure jet pipe at the front end and multiple nozzles can play a pre-ditching role. When the seabed soil is relatively hard, the pre-ditching role can play a more obvious role in breaking the soil.

[0036] The large-diameter suction port behind the reamer assembly can suck up the large-diameter soil cut off without the pipe blockage phenomenon of ordinary centrifugal mud pumps. At the same time, the large flow rate and low flow velocity of the suction water flow cause little disturbance and pollution to the surrounding soil.

[0037] This invention enables high-intensity and high-efficiency mechanical cutting of seabed soil. Under the periodic rotation of the winch, the cutting debris gradually gathers into the winch and is simultaneously transported, conveyed, and discharged around the trench by the suction pipe under the suction force at the top of the winch. Ultimately, this invention combines high-intensity mechanical cutting of seabed trenches with efficient hydraulic suction, enabling efficient and precise trenching of the seabed.

[0038] In addition, by adjusting the angle between the counter-rotating winch and the seabed, trench excavation at different depths can be achieved; and by adjusting the suction speed of the venturi tube, suction of mud of different concentrations can be achieved.

[0039] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. A high-efficiency, high-intensity jet suction combined auger, characterized in that: The high-efficiency, high-intensity jet suction combined auger includes: A ski boot that abuts against the seabed; A mounting base, which is connected to the sliding shoe; The jet suction assembly includes: A fixed frame is connected to the fixed base via a hinge shaft; A mud extraction port, which is connected to the fixed frame via a connecting pipe; A mud suction pipe, which is connected to the mud suction port; A mud discharge pipe, which is connected to the mud suction pipe, is located on the upper side of the seabed; and A jet pump, which is connected to the sludge discharge pipe via a venturi tube, and the jet pump is connected to the fixed frame; A hydraulic push-pull rod, one end of which is connected to the slipper, and the other end of which is connected to the fixed frame; High-pressure jet pipes are provided on the left and right sides of the front part of the slipper. Multiple nozzles are provided on the high-pressure jet pipes, and the high-pressure jet pipes are connected to the jet pump. A reamer assembly, comprising: a waterproof motor connected to the fixed frame; a gearbox, the output shaft of the waterproof motor meshing with the gearbox; and a counter-rotating winch, the counter-rotating winch meshing with the output end of the gearbox, the counter-rotating winch comprising two winch sections.

2. The high-efficiency, high-intensity jet suction combined auger according to claim 1, characterized in that: The slide shoe is configured as two, and the jet suction assembly is disposed between the two slide shoes.

3. The high-efficiency, high-intensity jet suction combined auger according to claim 2, characterized in that: The mud suction pipe, the mud discharge pipe, the venturi tube, and the jet pump are each configured in pairs.

4. The high-efficiency, high-intensity jet suction combined auger according to claim 3, characterized in that: The mud extraction port is connected to one of the mud extraction pipes via a first bend, and the mud extraction port is connected to another of the mud extraction pipes via a second bend.

5. The high-efficiency, high-intensity jet suction combined auger according to claim 1, characterized in that: The gearbox includes: A first input bevel gear is connected to the output shaft of the waterproof motor. An intermediate shaft is provided with a first intermediate bevel gear, a second intermediate bevel gear is provided at one end of the intermediate shaft near the first intermediate bevel gear, and a third intermediate bevel gear is provided at one end of the intermediate shaft away from the first intermediate bevel gear. A first output bevel gear, which meshes with the third intermediate bevel gear, and the output end of the first output bevel gear is connected to one of the winches; and The second output bevel gear meshes with the second intermediate bevel gear, and the output end of the second output bevel gear is connected to another of the aforementioned winches.

6. The high-efficiency, high-intensity jet suction combined auger according to claim 5, characterized in that: The winch section includes: A winch rotating shaft, which is connected to the first output bevel gear or the second output bevel gear; Support plate, the guide plate being arranged circumferentially along the rotation axis of the winch; and A mud guide plate is provided along the support plate, and a cutter arm is provided on one side of the mud guide plate, with multiple reamers provided on the cutter arm.

7. The high-efficiency, high-intensity jet suction combined auger according to claim 1, characterized in that: The high-efficiency, high-strength jet suction combined auger also includes a support base, which is located on one side of the fixed base on the slipper, and the high-pressure jet tube is connected to the support base through a bent tube.

8. The high-efficiency, high-intensity jet suction combined auger according to claim 1, characterized in that: The jet pump is connected to the venturi tube via a third bend.

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