CN114908692B - Automatic variable-angle ditching device for high-strength rock - Google Patents
Automatic variable-angle ditching device for high-strength rock Download PDFInfo
- Publication number
- CN114908692B CN114908692B CN202210519418.8A CN202210519418A CN114908692B CN 114908692 B CN114908692 B CN 114908692B CN 202210519418 A CN202210519418 A CN 202210519418A CN 114908692 B CN114908692 B CN 114908692B
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- Prior art keywords
- reamer
- rock
- angle
- push rod
- main body
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/506—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces
- E01F9/512—Preformed road surface markings, e.g. of sheet material; Methods of applying preformed markings
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/006—Dredgers or soil-shifting machines for special purposes adapted for working ground under water not otherwise provided for
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
- E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
- E02F5/106—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water using ploughs, coulters, rippers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
- E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
- E02F5/109—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water using rotating digging elements
Abstract
The invention belongs to the technical field of ocean engineering, and particularly discloses an automatic variable-angle ditching device for high-strength rock, which is symmetrically hung on two sides of a ditcher frame of a pipe cable paving machine. The invention realizes variable-angle excavation, improves the cutting and crushing efficiency of hard rock and reduces the ditching operation cost; under the suction action of the mud pump, the suction arm sucks the rock fragments cut and broken by the reamer out through the rock fragment suction port, so that efficient and stable grooves are formed.
Description
Technical Field
The invention relates to the technical field of ocean engineering, in particular to an automatic variable-angle ditching device for high-strength rock.
Background
In the offshore oil development process, the submarine pipeline is buried (1) directly paved on the seabed (naked), and (2) buried below the seabed by a shallow trench depth; (3) and a deeper trench depth. Under the influence of construction geological complexity and nonuniformity, the condition that the submarine soil strength exceeds the design and construction capacity of the trencher is often encountered in the field construction process, and multiple submarine ditching operations are needed at the moment.
At present, the requirements of ditching operation after newly laying sea pipes in China are vigorous, the furrow opener is the most critical machine for ditching and laying of submarine pipelines, but most of the domestic existing furrow openers belong to foreign products eliminated by foreign countries or foreign equipment rented at high price, more neck clamping technologies exist in the research and development process of the domestic furrow opener, many design difficulties exist, and the working capacity cannot meet the development requirements of industry new. The main core problems are: (1) the ditcher has poor soil breaking effect and shallow ditching depth; (2) the excavation strength is low, the dredging speed of the pipe ditch is high after the ditching, the conventional ditching operation can be completed by multiple times of construction, and the ditching efficiency is low due to the multiple times of construction; (3) the ditching operation speed is low, hydraulic jet ditching or mechanical plowshare ditching is generally adopted at present, and the operation difficulty is high in more complicated sea areas. At present, ditcher equipment for excavating high-strength rock is lacking.
Disclosure of Invention
The invention aims to solve the defects in the prior art, provides an automatic variable-angle ditching device for high-strength rock, and fills the blank of a domestic ultra-deep, high-speed and high-strength rock excavating machine.
In order to achieve the above purpose, the invention is implemented according to the following technical scheme:
the utility model provides an automatic variable angle ditching device of high strength rock, the symmetry hangs in the ditcher frame both sides of pipe cable shop buries the machine, automatic variable angle ditching device of high strength rock includes reamer mount and the reamer mechanism that sets up in the reamer mount, reamer mechanism includes reamer link, the reamer of hinge joint both ends around the reamer link, and the reamer that is located the front end is installed in the reamer mount through first pivot rotation, be fixed with rock fragment suction mechanism on the reamer link, the reamer of both ends and both ends around the rock fragment suction mechanism is articulated respectively to have angle adjustment mechanism.
Further, the reamer includes reamer support, double gear, chain, hydraulic motor, reduction gear box, angle sensor, torque sensor, reamer support hinge links both ends around the reamer link, and double gear sets up to a plurality of and rotates and install on the reamer support, and the chain is installed on a plurality of double gears, the chain outer end face is equipped with a plurality of reamer teeth, hydraulic motor, reduction gear box are fixed in on the reamer support, and hydraulic motor's power output shaft and reduction gear box's power input shaft axial connection still are connected with torque sensor and angle sensor on hydraulic motor's the power output shaft for monitor hydraulic motor's drive torque and ditcher frame and reamer between the angle, the double gear axial of reamer one end is fixed on reduction gear box's power output shaft.
Further, the rock fragment suction mechanism comprises a rock fragment suction main body, suction ports arranged at the bottoms of two sides of the rock fragment suction main body, a slurry pump or a sediment pump which is connected with the rock fragment suction main body and is driven by hydraulic pressure, and mud-water separation equipment which is connected with the slurry pump or the sediment pump, wherein the rock fragment suction main body is fixed on a reamer connecting frame, and suction arms which are connected with the suction ports are fixed on two sides of the rock fragment suction main body; the bottom of the rock fragment suction main body is provided with rake teeth.
Further, the angle adjustment mechanism comprises a first hydraulic push rod and a second hydraulic push rod, the bottom of the first hydraulic push rod is rotationally connected to the rear end of the rock fragment suction main body through a rotating shaft, the ejector rod end of the first hydraulic push rod is rotationally connected to a reamer support located at the rear end of the reamer connecting frame through the rotating shaft, the bottom of the second hydraulic push rod is rotationally connected to the front end of the rock fragment suction main body through the rotating shaft, the ejector rod end of the second hydraulic push rod is rotationally connected to the reamer support located at the front end of the reamer connecting frame through the rotating shaft, and the reamer cutting angle is changed by the first hydraulic push rod and the second hydraulic push rod according to the monitored driving torque and the monitored rotating angle of the hydraulic motor.
Further, the rake teeth tips are arranged obliquely downward toward the reamer mount.
Compared with the prior art, the invention can adjust the rotating speed and torque of the hydraulic motor and the double-row gears according to the rock strength, and can adjust the rotating angle of the front reamer and the rotating angle of the rear reamer, thereby realizing variable-angle excavation.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is an isometric view of the reamer mechanism of the present invention.
Fig. 3 is a front view of the reamer mechanism of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. The specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1-3, an automatic variable angle ditching device for high-strength rock is symmetrically hung on two sides of a ditcher frame of a cable laying machine, the automatic variable angle ditching device for high-strength rock comprises a reamer fixing frame 1 and reamer mechanisms arranged in the reamer fixing frame 1, each reamer mechanism comprises a reamer connecting frame 2 and reamers 3 hinged at the front end and the rear end of the reamer connecting frame 2, the reamers 3 at the front end are rotatably arranged in the reamer fixing frame 1 through a first rotating shaft, a rock fragment suction mechanism 4 is fixed on the reamer connecting frame 2, and angle adjusting mechanisms are hinged between the front end and the rear end of the rock fragment suction mechanism 4 and the reamers 3 at the two ends respectively.
Referring to fig. 3, the reamer 3 includes a reamer holder 31, double-row gears 32, a chain 33, a hydraulic motor 35, a reduction gear box, an angle sensor, and a torque sensor, where the reamer holder 31 is hinged at the front and rear ends of the reamer connecting frame 2, the double-row gears 32 are multiple and rotatably mounted on the reamer holder 31, the chain 33 is mounted on the multiple double-row gears 32, a plurality of reamer teeth 34 are disposed on the outer end surface of the chain 33, the hydraulic motor 35 and the reduction gear box are fixed on the reamer holder 31, a power output shaft of the hydraulic motor 35 is axially connected with a power input shaft of the reduction gear box, and a torque sensor and an angle sensor are also connected on the power output shaft of the hydraulic motor for monitoring the driving torque of the hydraulic motor and the angle between the ditcher frame and the reamer, and it is necessary to say that, as shown in fig. 3, the torque sensor and the angle sensor are also connected on the power output shafts of the front and rear hydraulic motors, and the torque sensor and the angle sensor are coaxially mounted; the double row gear at one end of the reamer is axially fixed on the power output shaft of the reduction gear box.
The reamers 3 at the front end and the rear end are connected through the angle adjusting mechanism, and in the actual use process, the reamers 3 at the front end and the rear end are driven in real time through the angle adjusting mechanism, so that the variable-angle excavation of the reamers 3 is finally realized, and the cutting and crushing efficiency of hard rocks is improved.
Referring to fig. 1 and 3, the rock fragment suction mechanism 4 includes a rock fragment suction body 41, suction ports disposed at two sides of the rock fragment suction body 41, a slurry pump or a sediment pump connected to the rock fragment suction body and driven by hydraulic pressure, and a slurry-water separation device connected to the slurry pump or the sediment pump, wherein the rock fragment suction body 41 is fixed on a reamer connecting frame 2, in order to make the connection between the components more stable, the reamer connecting frame 2 and the rock fragment suction body 41 are integrally formed, suction arms connected to the suction ports are fixed at two sides of the rock fragment suction body 41 (the suction arms are not shown in fig. 3, and are mounted on the openings at the top ends of the rock fragment suction body 41 in fig. 3), slurry two-phase flow pumped by the slurry pump or the sediment pump is conveyed to the rear end through a pipeline, and then the slurry two-water two-phase flow is effectively separated, and the solid slurry blocks are downwards buried in a pipe cable in a trench, and the separated water is discharged to the surrounding sea area, so that the pollution problem of the surrounding sea area is effectively reduced; the bottom of the rock fragment suction main body 41 is provided with rake teeth 42, and as shown in fig. 1 and 2, the tail ends of the rake teeth 42 are arranged obliquely downwards towards the reamer mount; the rake teeth 42 are used on the one hand for cutting the seabed bottom rock and on the other hand for blocking large rock pieces, preventing large diameter rock fragments from blocking the suction opening.
The angle adjusting mechanism comprises a first hydraulic push rod 5 and a second hydraulic push rod 6, wherein the bottom of the first hydraulic push rod 5 is rotationally connected to the rear end of the rock fragment suction main body 41 through a rotating shaft, the ejector rod end of the first hydraulic push rod 5 is rotationally connected to a reamer bracket 31 positioned at the rear end of the reamer connecting frame 2 through the rotating shaft, the bottom of the second hydraulic push rod 6 is rotationally connected to the front end of the rock fragment suction main body 41 through the rotating shaft, and the ejector rod end of the second hydraulic push rod 6 is rotationally connected to the reamer bracket 31 positioned at the front end of the reamer connecting frame 2 through the rotating shaft. The angle adjusting mechanism drives a cutting included angle between the front hinge and the rear hinge by utilizing a torque signal transmitted by the hydraulic motor and a hydraulic push rod, and simultaneously adjusts the angle of the reamer for cutting the rock.
Under the action of the second hydraulic push rod 6, the rock fragment suction main body can be driven to rotate along with the front reamer 3, so that the angle of the rake teeth 42 for excavating the rock is changed, and part of rock fragments in the opened groove can be cleaned out of the groove; the rear end of the rock fragment suction main body 41 is connected with the rear end reamer 3 through a chain, and the included angle between the rear end reamer 3 and the suction port can be changed through the drawing motion of the first hydraulic push rod 5, so that partial rock fragments in the groove can be conveniently and rapidly pumped away through the rock fragment suction port under the suction action of the mud pump.
When the invention is used for laying and burying the pipe cable, the concrete operation process is as follows:
1. the automatic variable-angle ditching device for the high-strength rock is symmetrically hung on two sides of a ditcher frame of a pipe cable burying machine, the whole pipe cable burying machine is transported to an operating water area by a tug, and then the pipe cable burying machine is lowered to a designated seabed area by a crane on a ship;
2. when ditching is needed, the cable laying machine lowers the reamer, the reamer is driven by the hydraulic motor to rotate while being lowered, the rotating reamer drives the cutter teeth to cut and crush soil, and simultaneously the rotation angle of the front reamer and the rotation angle of the rear reamer can be adjusted through the first hydraulic push rod and the second hydraulic push rod, so that efficient and rapid rock cutting is realized, and a groove is formed in a seabed along with gradual penetration of the cut and crushed soil;
4. in the ditching process, the suction arm sucks the rock fragments cut by the reamer out through the rock fragment suction port under the suction action of the mud pump, so that efficient and stable grooves are formed.
According to the invention, variable-angle excavation is realized according to the excavation soil property intensity (rock and hard soil), the cutting and crushing efficiency of the hard rock is improved, and the ditching operation cost is reduced; according to the soil property intensity and the ditching depth, the angle between the front reamer and the rear reamer is effectively adjusted, so that the most efficient rock cutting ditching operation is realized; under the suction action of a mud pump, the suction arm sucks the rock fragments cut and broken by the reamer out through the rock fragment suction port, so that a high-efficiency stable groove is formed; the mud-water two-phase flow pumped and discharged by the mud pump is conveyed to mud-water separation equipment at the rear end through a mud-water pumping pipeline, then the mud-water two-phase flow is effectively separated, the solid mud blocks downwards fill the pipe cable in the groove, and the separated water body is discharged to the surrounding sea area, so that the pollution problem of the surrounding sea area is effectively reduced; the reamer is driven by the high-rotation-speed low-torque hydraulic motor and the speed reducer, the hydraulic power is derived from the hydraulic power source of the ditcher, the hydraulic motor is small in size, large in power-mass ratio, stable and reliable, and meanwhile, the reamer is provided with motor braking performance, and a motor brake is not required to be additionally added.
The technical scheme of the invention is not limited to the specific embodiment, and all technical modifications made according to the technical scheme of the invention fall within the protection scope of the invention.
Claims (2)
1. Automatic change angle ditching device of high strength rock, symmetry hang in the ditcher frame both sides of pipe cable shop buries machine, its characterized in that: the automatic variable-angle ditching device for the high-strength rock comprises a reamer fixing frame and reamer mechanisms arranged in the reamer fixing frame, wherein each reamer mechanism comprises a reamer connecting frame and reamers hinged at the front end and the rear end of the reamer connecting frame, the reamers at the front end are rotatably arranged in the reamer fixing frame through a first rotating shaft, a rock fragment suction mechanism is fixed on the reamer connecting frame, and angle adjusting mechanisms are respectively hinged between the front end and the rear end of the rock fragment suction mechanism and between the reamers at the two ends; the rock fragment suction mechanism comprises a rock fragment suction main body, suction ports arranged at the bottoms of two sides of the rock fragment suction main body, a slurry pump or a sediment pump which is connected with the rock fragment suction main body and is driven by hydraulic pressure, and mud-water separation equipment which is connected with the slurry pump or the sediment pump, wherein the rock fragment suction main body is fixed on a reamer connecting frame, and suction arms which are connected with the suction ports are fixed at two sides of the rock fragment suction main body; the bottom of the rock fragment suction main body is provided with rake teeth; the angle adjusting mechanism comprises a first hydraulic push rod and a second hydraulic push rod, the bottom of the first hydraulic push rod is rotationally connected to the rear end of the rock fragment suction main body through a rotating shaft, the end part of a push rod of the first hydraulic push rod is rotationally connected to a reamer bracket positioned at the rear end of the reamer connecting frame through a rotating shaft, the bottom of the second hydraulic push rod is rotationally connected to the front end of the rock fragment suction main body through a rotating shaft, the end part of the push rod of the second hydraulic push rod is rotationally connected to the reamer bracket positioned at the front end of the reamer connecting frame through a rotating shaft, and the cutting angle of the reamer is changed by the first hydraulic push rod and the second hydraulic push rod according to the monitored driving torque and the monitored rotation angle of the hydraulic motor;
the reamer comprises a reamer bracket, double-row gears, a chain, a hydraulic motor, a reduction gear box, an angle sensor and a torque sensor, wherein the reamer bracket is hinged to the front end and the rear end of the reamer connecting frame, the double-row gears are arranged into a plurality of rows and are rotatably arranged on the reamer bracket, the chain is arranged on the double-row gears, the outer end face of the chain is provided with a plurality of reamer teeth, the hydraulic motor and the reduction gear box are fixed on the reamer bracket, a power output shaft of the hydraulic motor is axially connected with a power input shaft of the reduction gear box, the torque sensor and the angle sensor are further connected on the power output shaft of the hydraulic motor and are used for monitoring the driving torque of the hydraulic motor and the angle between a ditcher frame and the reamer, and the double-row gears at one end of the reamer are axially fixed on the power output shaft of the reduction gear box.
2. The automated variable angle trenching assembly of high strength rock of claim 1 wherein: the rake teeth tips are arranged obliquely downward toward the reamer mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210519418.8A CN114908692B (en) | 2022-05-13 | 2022-05-13 | Automatic variable-angle ditching device for high-strength rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210519418.8A CN114908692B (en) | 2022-05-13 | 2022-05-13 | Automatic variable-angle ditching device for high-strength rock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114908692A CN114908692A (en) | 2022-08-16 |
| CN114908692B true CN114908692B (en) | 2023-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210519418.8A Active CN114908692B (en) | 2022-05-13 | 2022-05-13 | Automatic variable-angle ditching device for high-strength rock |
Country Status (1)
| Country | Link |
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| CN (1) | CN114908692B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19858151A1 (en) * | 1998-12-16 | 2000-06-21 | Heilit & Woerner Bau Ag | Excavator for ditches and embankments has a cutting attachment fitted to the arm of a conventional excavator and with adjustment to angle the cutting head |
| EP1167635A1 (en) * | 2000-06-21 | 2002-01-02 | Georg Föckersperger GmbH | Arrangement for inserting a conduit |
| CN101164709B (en) * | 2006-10-19 | 2010-04-21 | 山东理工大学 | Oil-storage tank bottom sediment silt mechanized cleaning system |
| CN102094437A (en) * | 2010-09-01 | 2011-06-15 | 张永忠 | Chain type trenching machine |
| CN102140810A (en) * | 2011-01-22 | 2011-08-03 | 张永忠 | Synchronous trenching machine |
| CN207017325U (en) * | 2017-07-25 | 2018-02-16 | 太仓美克斯机械设备有限公司 | A kind of architectural engineering hydraulic crawler excavator machine bucket |
| CN110036722A (en) * | 2019-04-01 | 2019-07-23 | 合肥市大邵生态农业有限公司 | A kind of ditching device |
| CN210288534U (en) * | 2019-07-22 | 2020-04-10 | 张耀明 | Ditch dredger |
| CN215759262U (en) * | 2021-07-05 | 2022-02-08 | 江苏科弘岩土工程有限公司 | Chain type ditcher applied to urban and rural pipeline laying |
| CN217438759U (en) * | 2022-05-13 | 2022-09-16 | 中国海洋大学 | Automatic variable-angle ditching device for high-strength rock |
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2022
- 2022-05-13 CN CN202210519418.8A patent/CN114908692B/en active Active
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| CN114908692A (en) | 2022-08-16 |
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