Performance evaluation equipment for submarine cable burying plough

Abstract

The invention relates to the technical field of submarine cable burying evaluation, in particular to submarine cable burying plough performance evaluation equipment which comprises an operation box body, and overhead translation devices are symmetrically fixed to the upper ends of the inner walls of the two sides of the operation box body. According to the performance evaluation equipment for the submarine cable burying plough, two modes of top translation and bottom conveying are adopted for operation, control in various modes can be carried out according to needs, and the operable mode of the whole equipment is greatly improved; gravels and sand are operated in an automatic material returning and filling mode, the gravels can be rapidly refilled, long-term operation of equipment is guaranteed, the resource recycling rate is increased, and the evaluation cost is reduced; the combined sensor used for detecting the operation state of the submarine cable burying plough is installed on the overhead translation device, operation data of the submarine cable burying plough can be monitored in real time, detection numerical values are more diversified, and detection is more comprehensive.

Description

Technical Field

[0001] The invention relates to the technical field of submarine cable burying evaluation, in particular to a performance evaluation device for a submarine cable burying plough. Background Art

[0002] The work of submarine cable burial assessment is very important for the design of submarine cable burial construction and the protection of submarine cables. It is necessary to comprehensively consider factors such as the constitutive model of the soil, ships, equipment, and cost. In particular, the interaction analysis between the constitutive model of the soil and the burial plow plays an important role in determining whether the submarine cable reaches the predetermined burial depth, the additional protection design for submarine cables that cannot reach the burial depth, the project plan, and the cost.

[0003] The CBRA, BPI and other methods currently used in the industry ignore the performance of the buried equipment used for different rock and soil bodies, so they cannot be called true BAS. They are more suitable for analysis in the desktop research stage, but not for detailed design in the construction stage.

[0004] Some designs for buried plow construction performance, such as drag, burial depth, and wear, are also semi-quantitative evaluations. Although they are supported by data such as CPT and geotechnical tests, the data are not fully utilized and cannot be fully quantitatively evaluated.

[0005] Moreover, the current detection method is to adjust the submarine cable laying plow through an overhead translation mechanism. Due to structural and spatial limitations, it is unable to truly simulate the long-term and long-distance operation status, resulting in very limited authenticity of the simulation process. Summary of the invention

[0006] The technical problem to be solved by the present invention is that the current detection method is to adjust the submarine cable burying plow through an overhead translation mechanism. Due to structural and spatial limitations, it is impossible to truly simulate the long-term and long-stroke operating state, resulting in very limited authenticity of the simulation process.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a performance evaluation device for a submarine cable burying plough, comprising an operating box, top translation devices are symmetrically fixed to the upper ends of the inner walls on both sides of the operating box, a bottom-mounted conveyor belt mechanism is movably installed at the lower end of the interior of the operating box, a side-mounted return material mechanism for conveying gravel and sand is fixedly installed on the right inner wall of the operating box, a lateral return material separation chamber is arranged on the bottom surface of the operating box, and a combined sensor for detecting the operating status of the submarine cable burying plough is installed on the top translation device.

[0008] The overhead translation device includes a top translation guide rail fixedly mounted on the inner walls on both sides of the operating box, a transverse assembly platform slidably mounted on the top translation guide rail, an electric conveyor belt mounted on the operating box, a longitudinal electric lifting guide rail fixed at the lower end of the transverse assembly platform, a transverse electric translation guide rail mounted on the side wall of the longitudinal electric lifting guide rail, an electric winch fixedly mounted at the lower end of the transverse electric translation guide rail and a synchronous detection seat slidably mounted on the transverse electric translation guide rail.

[0009] The bottom conveyor belt mechanism includes a bottom conveyor belt installed inside the operating box, an active roller movably installed at the left end of the bottom conveyor belt, a supporting roller installed inside the bottom conveyor belt, and a driven roller movably installed at the right end of the bottom conveyor belt.

[0010] An inclined screening plate is fixedly mounted inside the side return separation chamber.

[0011] The side-mounted return mechanism includes an inner gravel feed pipe fixedly mounted on the right inner wall of the operating box, an inner sand feed pipe located on the left side of the inner gravel feed pipe, an outer gravel return pipe and an outer sand return pipe fixedly mounted on the right wall of the operating box, and an electrically controlled spiral feed shaft movably mounted inside the outer gravel return pipe and the outer sand return pipe.

[0012] The inner gravel feeding pipe and the inner sand feeding pipe are fixedly equipped with oblique material balancing paddles on their left sides.

[0013] The combined sensor comprises a longitudinal distance sensor fixedly mounted on the lower surface of the synchronous detection seat, a transverse distance sensor fixedly mounted on the right side of the synchronous detection seat, and a tension sensor mounted on the connecting end of the electric control winch.

[0014] The longitudinal electric-controlled lifting guide rail includes a longitudinal guide rail fixed on the right side of the lower end of the transverse assembly platform, an internal longitudinal screw rod movably installed inside the longitudinal guide rail, and an internal threaded lifting seat threadedly sleeved on the outside of the internal longitudinal screw rod. The transverse electric-controlled translation guide rail includes a transverse guide rail fixed on the left side wall of the internal threaded lifting seat, and an internal transverse screw rod movably installed inside the transverse guide rail.

[0015] A top support rod is fixedly mounted on the upper surface of the transverse guide rail.

[0016] A pressure sensor module is installed at the lower end of the right side surface of the inclined material balancing paddle.

[0017] The beneficial effects of the present invention are: (1) The performance evaluation device of a submarine cable laying plough of the present invention is operated by adopting two modes: top translation and bottom conveying. Various forms of control can be performed as needed, greatly improving the operability of the entire device; (2) By adopting automatic refilling and automatic filling methods to operate gravel and sand, not only can the gravel be quickly refilled, but also the long-term operation of the equipment can be ensured, the resource recycling rate can be improved, and the evaluation cost can be reduced; (3) A combined sensor for detecting the operating status of the submarine cable burying plow is installed on the top translation device, which can monitor the operating data of the submarine cable burying plow in real time, with more diverse detection values ​​and more comprehensive detection; (4) By adopting the height and level adjustment mechanism, it can be adapted to submarine cable laying plows of different specifications and sizes, and has a wider range of applications; (5) A lateral material return separation chamber is provided on the bottom surface of the operating box, and an inclined screening plate is provided inside the chamber, which not only ensures the internal material guiding effect, but also can simultaneously separate and screen the materials, thereby improving the classification and return material effect; (6) A side-mounted return mechanism for conveying gravel and sand is fixedly installed on the right inner wall of the operating box, which is convenient for installation and control; (7) By adopting the upper and lower double-layer drive, the adjustable range of the drive speed is wider; (8) By adopting the design of inclined material leveling paddles, the return material can be quickly flattened to ensure the consistency of the test environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a schematic diagram of the internal structure of the side-hanging material return mechanism in the present invention.

[0021] Figure 3 It is a schematic diagram of the internal structure of the top translation device and the combined sensor in the present invention when they are assembled. DETAILED DESCRIPTION

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Figure 1 , Figure 2 and Figure 3 The performance evaluation equipment of a submarine cable burying plough shown in the figure comprises an operating box 1, top translation devices 2 are symmetrically fixed on the upper ends of the inner walls on both sides of the operating box 1, a bottom-mounted conveyor belt mechanism 3 is movably installed on the lower end of the inside of the operating box 1, a side-mounted return material mechanism 4 for conveying gravel and sand is fixedly installed on the right inner wall of the operating box 1, a lateral return material separation chamber 5 is arranged on the inner bottom surface of the operating box 1, and a combined sensor 6 for detecting the operating status of the submarine cable burying plough is installed on the top translation device 2.

[0025] Working process: The submarine cable laying plow is installed on the top translation device 2, which can move at different speeds and bury in the sand bed composed of sand. A layer of gravel is covered on the sand bed to simulate the real seabed environment.

[0026] During the movement and burying process of the burying plow, the acceleration information of the movement process is recorded by the acceleration sensors installed on the top translation device 2 and the bottom conveyor belt mechanism 3; By installing a tension sensor 63 at the connection end, the submarine cable burying plow can help evaluate its burying capacity by the stress conditions under different resistance conditions.

[0027] The longitudinal distance sensor 61 and the transverse distance sensor 62 are used to accurately record the displacement of the burying plow relative to the initial position during the entire experiment, helping to determine its movement trajectory and burying depth.

[0028] During the experiment, the submarine cable burying plow is installed on the top translation device 2, and it is ensured that all sensors on the device are working properly. The translation mechanism on the top translation device 2 or the bottom conveyor belt mechanism 3 is started, and the plow moves forward on the sand bed and buries into the sand layer at the same time. The sensor records the acceleration, force and position change data during the burying process. During the experiment, parameters such as the density of the sand bed and the speed of the conveyor belt can be changed to simulate different working conditions in order to evaluate the performance of the burying plow under different conditions. Data analysis: By analyzing the data of the accelerometer, load sensor and position sensor, key performance indicators such as the burying efficiency, soil resistance and plow body movement stability of the burying plow can be evaluated.

[0029] In order to cooperate with the top translation and lifting adjustment, the top translation device 2 includes a top side translation guide rail 21 fixedly installed on the inner walls on both sides of the operating box 1, a horizontal assembly platform 22 slidably installed on the top side translation guide rail 21, an electric control conveyor belt 23 installed on the operating box 1, a longitudinal electric control lifting guide rail 24 fixed at the lower end of the horizontal assembly platform 22, a horizontal electric control translation guide rail 25 installed on the side wall of the longitudinal electric control lifting guide rail 24, an electric control winch 26 fixedly installed at the lower end of the horizontal electric control translation guide rail 25 and a synchronous detection seat 27 slidably installed on the horizontal electric control translation guide rail 25.

[0030] The electrically controlled conveyor belt 23 drives the top translation seat 24 to translate and adjust along the top translation guide rail 21 through conveying. The longitudinal electrically controlled lifting guide rail 24 drives the transverse electrically controlled translation guide rail 25 to lift and adjust along the longitudinal electrically controlled lifting guide rail 24. The transverse electrically controlled translation guide rail 25 translates and adjusts along the synchronous detection seat 27.

[0031] In order to cooperate with the bottom electric control translation adjustment, the bottom conveyor belt mechanism 3 includes a bottom conveyor belt 31 installed inside the operating box 1, an active roller 32 movably installed at the left end of the bottom conveyor belt 31, a supporting roller 33 installed inside the bottom conveyor belt 31 and a driven roller 34 movably installed at the right end of the bottom conveyor belt 31.

[0032] The active roller 32 drives the bottom conveyor belt 31 to operate by rotating, and the support roller 33 and the driven roller 34 cooperate with the active roller 32 to drive the bottom conveyor belt to operate stably, while improving the top support effect.

[0033] In order to improve the uniformity of the return material paving, an inclined screening plate 7 is fixedly installed inside the lateral return material separation chamber 5 .

[0034] In order to cooperate with the electric control material feeding, the side-mounted return material mechanism 4 includes an inner gravel feed pipe 41 fixedly installed on the right inner wall of the operating box 1, an inner sand feed pipe 42 located on the left side of the inner gravel feed pipe 41, an outer gravel return pipe 43 and an outer sand return pipe 44 fixedly installed on the right wall of the operating box 1, and an electric control spiral feed shaft 45 movably installed inside the outer gravel return pipe 43 and the outer sand return pipe 44.

[0035] A bottom inclined return pipe connected to the inside of the lateral return separation chamber 5 is fixed to the outer bottom of the outer gravel return pipe 43 and the outer sand return pipe 44, and a top inclined feed pipe connected to the inside of the inner gravel feed pipe 41 and the inner sand feed pipe 42 is fixed to the top of one side of the outer gravel return pipe 43 and the outer sand return pipe 44.

[0036] The gravel or sand inside the lateral return separation chamber 5 is introduced into the outer gravel return pipe 43 or the outer sand return pipe 44 along the bottom inclined return pipe, and then lifted upward by the electric-controlled spiral feeding shaft 45, and then introduced into the inner gravel feeding pipe 41 and the inner sand feeding pipe 42 through the top inclined feeding pipe, and then downwardly guided back to the bottom conveyor belt 31 through the inner gravel feeding pipe 41 and the inner sand feeding pipe 42, and then the bottom conveyor belt 31 drives the return material to move horizontally, and uses the inclined screen plate 7 to spread the return material accumulated in one place on the bottom conveyor belt 31.

[0037] In order to facilitate the oblique guiding of gravel and sand, an oblique material-leveling paddle 8 is fixedly mounted on the left side surface of the inner gravel feeding pipe 41 and the inner sand feeding pipe 42 .

[0038] The inclined material balancing paddles 8 are respectively fixed on the left side surfaces of the inner gravel feeding pipe 41 and the inner sand feeding pipe 42 through external brackets.

[0039] In order to cooperate with monitoring, the combined sensor 6 includes a longitudinal distance sensor 61 fixedly installed on the lower surface of the synchronous detection seat 27, a lateral distance sensor 62 fixedly installed on the right side of the synchronous detection seat 27, and a tension sensor 63 installed at the connection end of the electric control winch 26.

[0040] The longitudinal distance sensor 61 is used to detect the distance between it and the submarine cable burying plow, and the transverse distance sensor 62 is used to detect the transverse position of the synchronous detection seat 27. After the electric-controlled winch 26 releases the cable, the submarine cable burying plow will descend when the submarine cable burying plow digs. At this time, the connection end between the submarine cable burying plow and the electric-controlled winch 26 will generate a pulling force, and the tension sensor 63 will automatically record the pulling force to detect the resistance; Speed ​​sensors are provided on the electrically controlled conveyor belt 23 and the bottom-mounted conveyor belt mechanism 3 to monitor the operating speed of the submarine cable laying plough.

[0041] In order to cooperate with the longitudinal lifting and transverse translation adjustment, the longitudinal electric-controlled lifting guide rail 24 includes a longitudinal guide rail 251 fixed on the right side of the lower end of the transverse assembly platform 22, an internal longitudinal screw rod 252 movably installed inside the longitudinal guide rail 251, and an internal threaded lifting seat 253 threadedly sleeved on the outside of the internal longitudinal screw rod 252; the transverse electric-controlled translation guide rail 25 includes a transverse guide rail 261 fixed on the left side wall of the internal threaded lifting seat 253, and an internal transverse screw rod 262 movably installed inside the transverse guide rail 261.

[0042] By rotating the internal longitudinal screw rod 252, the internal threaded lifting seat 253 is controlled to be raised and lowered along the longitudinal guide rail 251, driving the height adjustment of the transverse guide rail 261 to adapt to submarine cable burying plows of different heights. The internal transverse screw rod 262 controls the synchronous detection seat 27 to be translated along the transverse guide rail 261 through rotation, and controls the longitudinal distance sensor 61 through translation to select the detection point on the upper surface of the submarine cable burying plow. By adjusting the spacing of the submarine cable burying plow, the excavation depth of the submarine cable burying plow can be determined.

[0043] In order to improve the overall structural stability of the transverse guide rail 261 , a top support rod 9 is fixedly mounted on the upper surface of the transverse guide rail 261 .

[0044] The top support rod 9 adopts a detachable structural design. Top support rods 9 of different lengths are selected according to the height of the transverse guide rail 261, so as to ensure the structural strength of the transverse guide rail 261.

[0045] In order to cooperate with the lateral pressure monitoring, a pressure sensor module 10 is installed at the lower end of the right side of the inclined material balancing paddle 8.

[0046] By rotating the electrically-controlled spiral feeding shaft 45, the sand and gravel at the bottom of the inner gravel feeding pipe 41 and the inner sand feeding pipe 42 are transported upward, and then guided back to the upper surface of the bottom conveyor belt mechanism 3 through the outer gravel return pipe 43 and the outer sand return pipe 44. Then, the bottom conveyor belt mechanism 3 drives the return material to be transported and translated from right to left. During the translation process, the accumulated material is blocked and guided by the inclined material balancing paddle 8 so that it is evenly laid on the upper surface of the bottom conveyor belt mechanism 3. The gravel and sand can be laid in layers as needed, and then the required laying thickness can be set according to the installation height of the inclined material balancing paddle 8.

[0047] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A performance evaluation device for a submarine cable laying plough, comprising an operating box (1), characterized in that: Top translation devices (2) are symmetrically fixed on the upper ends of the inner walls on both sides of the operating box (1); a bottom-mounted conveyor belt mechanism (3) is movably installed on the lower end of the operating box (1); a side-mounted return material mechanism (4) for conveying gravel and sand is fixedly installed on the right inner wall of the operating box (1); a lateral return material separation chamber (5) is arranged on the inner bottom surface of the operating box (1); and a combined sensor (6) for detecting the operating status of a submarine cable burying plow is installed on the top translation device (2).

2. The performance evaluation device for a submarine cable laying plough according to claim 1, characterized in that: The top translation device (2) comprises a top translation guide rail (21) fixedly mounted on the inner walls of both sides of the operating box (1), a transverse assembly platform (22) slidably mounted on the top translation guide rail (21), an electric-controlled conveyor belt (23) mounted on the operating box (1), a longitudinal electric-controlled lifting guide rail (24) fixed at the lower end of the transverse assembly platform (22), a transverse electric-controlled translation guide rail (25) mounted on the side wall of the longitudinal electric-controlled lifting guide rail (24), an electric-controlled winch (26) fixedly mounted at the lower end of the transverse electric-controlled translation guide rail (25), and a synchronous detection seat (27) slidably mounted on the transverse electric-controlled translation guide rail (25).

3. The performance evaluation device for a submarine cable laying plough according to claim 1, characterized in that: The bottom-mounted conveyor belt mechanism (3) comprises a bottom-mounted conveyor belt (31) installed inside the operating box (1), a driving roller (32) movably installed at the left end inside the bottom-mounted conveyor belt (31), a supporting roller (33) installed inside the bottom-mounted conveyor belt (31), and a driven roller (34) movably installed at the right end inside the bottom-mounted conveyor belt (31).

4. The performance evaluation device for a submarine cable laying plough according to claim 1, characterized in that: An inclined screening plate (7) is fixedly mounted inside the side return separation chamber (5).

5. The performance evaluation device for a submarine cable laying plough according to claim 1, characterized in that: The side-mounted material return mechanism (4) comprises an inner gravel feed pipe (41) fixedly mounted on the right inner wall of the operating box (1), an inner sand feed pipe (42) located on the left side of the inner gravel feed pipe (41), an outer gravel return pipe (43) and an outer sand return pipe (44) fixedly mounted on the right wall of the operating box (1), and an electrically controlled spiral feed shaft (45) movably mounted inside the outer gravel return pipe (43) and the outer sand return pipe (44).

6. The performance evaluation device for a submarine cable laying plough according to claim 5, characterized in that: An oblique material distribution paddle (8) is fixedly mounted on the left side surfaces of the inner gravel feeding pipe (41) and the inner sand feeding pipe (42).

7. The performance evaluation device for a submarine cable laying plough according to claim 2, characterized in that: The combined sensor (6) comprises a longitudinal distance sensor (61) fixedly mounted on the lower surface of the synchronous detection seat (27), a transverse distance sensor (62) fixedly mounted on the right side surface of the synchronous detection seat (27), and a tension sensor (63) mounted on the connection end of the electric-controlled winch (26).

8. The performance evaluation device for a submarine cable laying plough according to claim 2, characterized in that: The longitudinal electric-controlled lifting guide rail (24) comprises a longitudinal guide rail (241) fixed to the right side of the lower end of the transverse assembly platform (22), an internal longitudinal screw rod (242) movably mounted inside the longitudinal guide rail (241), and an internal thread lifting seat (243) threadedly sleeved on the outside of the internal longitudinal screw rod (242); the transverse electric-controlled translation guide rail (25) comprises a transverse guide rail (251) fixed to the left side wall of the internal thread lifting seat (243), and an internal transverse screw rod (252) movably mounted inside the transverse guide rail (251).

9. The performance evaluation device for a submarine cable laying plough according to claim 8, characterized in that: A top support rod (9) is fixedly mounted on the upper surface of the transverse guide rail (251).

10. The performance evaluation device for a submarine cable laying plough according to claim 6, characterized in that: A pressure sensor module (10) is installed at the lower end of the right side surface of the inclined material balancing paddle (8).

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