Rotary excavating end plate for underwater salvage equipment and method of sinking

Abstract

The present application relates to a kind of rotary excavation end plate suitable for underwater salvage equipment and its sinking method, the rotary excavation end plate includes: end plate body, the surface for being contacted with mud surface line is set on the end plate body to be sinking surface, the middle position of the sinking surface is connected with a rotating shaft in the direction perpendicular to the end plate body, the rotating shaft divides the sinking surface into first half surface and second half surface respectively located in the rotating shaft two sides;Multiple excavation heads for excavating silt, multiple the excavation head is arranged along the first half surface and is fixed to the end plate body;Underwater salvage equipment includes end plate frame for connecting the rotating shaft and driving the rotating shaft rotation.The present application is arranged on one side of the sinking surface of end plate body by excavation head and cooperates rotatable structure form, realizes section excavation, improves the efficiency of lowering, ensures that end plate structure is unblocked and smoothly lowered, reduces cost;In addition, by the cooperation of end plate frame, it can ensure that the lowering trajectory does not deviate.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of underwater construction, and particularly relates to a rotary excavation type end plate suitable for underwater salvage equipment and a sinking method thereof. BACKGROUND

[0002] In some underwater salvage projects, a curved pipe jacking bottom curtain method is used. The method is to sink two end plates into water first, then pass connecting longitudinal beams between the end plates to form a whole frame, install a launching frame on the upper part of the frame, jack an arc-shaped pipe section into the frame one by one, pass a pin shaft and connect the frame, and finally envelop the salvaged object and surrounding soil as a whole. The salvage method does not need to be sunk as a whole, compared with the traditional caisson method, the sinking resistance during salvage is reduced, a large amount of manpower and material resources is not needed, and the operation is relatively simple. However, the end plate is placed in the river bottom, which is easily disturbed by water flow, soil layer and sundries, and problems such as uneven placement, end plate stuck in a certain bad position, and placement trajectory deviation occur during placement, and the overall efficiency is low. SUMMARY

[0003] To solve the above problems, the application provides a rotary excavation type end plate suitable for underwater salvage equipment and a sinking method thereof, which solves the problems of uneven placement of the traditional end plate structure, deviation of the placement trajectory, and low placement efficiency.

[0004] The application is implemented by the following scheme: a rotary excavation type end plate suitable for underwater salvage equipment, comprising:

[0005] An end plate body, a surface of the end plate body for contacting a mud surface line is a sinking surface, a middle position of the sinking surface is connected with a rotating shaft in a direction perpendicular to the end plate body, and the rotating shaft divides the sinking surface into a first half surface and a second half surface located on two sides of the rotating shaft;

[0006] A plurality of excavation heads for excavating silt, the plurality of excavation heads are arranged on the first half surface and fixed to the end plate body;

[0007] The underwater salvage equipment comprises an end plate frame for connecting the rotating shaft and driving the rotating shaft to rotate.

[0008] Further improvement of the rotary excavation type end plate suitable for underwater salvage equipment is that the end plate body comprises symmetrically arranged inner plates and outer plates, a plurality of partition plates are fixed between the inner plates and the outer plates, the plurality of partition plates divide the inner plates and the outer plates into a plurality of installation ports for one-to-one installation of the plurality of excavation heads, and the rotating shaft is connected between the inner plates and the outer plates.

[0009] The further improvement of the application for the rotary excavating end plate of the underwater salvage equipment is that the end plate body is a semicircle with a circular arc downward, the upper end surface of the end plate body is the sinking surface, and the rotating shaft is located at the center of the end plate body.

[0010] The further improvement of the application for the rotary excavating end plate of the underwater salvage equipment is that the end plate frame is a rectangular frame which can be arranged around the periphery of the sinking surface, and includes two side frames and two end frames fixed between the two ends of the side frames, and two electric bearings connected with external controllers are symmetrically arranged on the side frames, and the two ends of the rotating shaft extend out of the end plate body and are connected to the electric bearings.

[0011] The further improvement of the application for the rotary excavating end plate of the underwater salvage equipment is that the excavating heads are independently controlled by external controllers.

[0012] The further improvement of the application for the rotary excavating end plate of the underwater salvage equipment is that the axes of all the excavating heads are vertically arranged.

[0013] The application also provides a sinking method of the rotary excavating end plate, which includes the following steps:

[0014] The rotary excavating end plate as described above is provided, and the end plate frame of the underwater salvage equipment is provided, and the rotating shaft is connected to the end plate frame.

[0015] The sinking of the rotary excavating end plate is started with the sinking surface downward.

[0016] When the sinking surface contacts the mud surface line, the end plate frame is controlled to drive the rotating shaft to rotate the end plate body, and the excavating heads are controlled to start working.

[0017] The sinking is continued, and when the sinking reaches a preset position and the end plate body rotates by 180 degrees, the driving of the rotating shaft is stopped, and the excavating heads are controlled to stop working.

[0018] The further improvement of the sinking method of the rotary excavating end plate is that:

[0019] The end plate body is a semicircle with a circular arc downward, the upper end surface of the end plate body is the sinking surface, and the rotating shaft is fixed at the center of the end plate body.

[0020] The end plate frame is a rectangular frame which includes two side frames and two end frames fixed between the two ends of the side frames, and two electric bearings connected with external controllers are symmetrically arranged on the side frames, and the two ends of the rotating shaft extend out of the end plate body.

[0021] When connecting the rotating shaft to the end plate frame, the two ends of the rotating shaft are connected to the two electric bearings respectively, and the end plate frame is arranged around the outer periphery of the sinking surface;

[0022] During the initial sinking and the continuous sinking, the end plate frame is kept in a horizontal state.

[0023] The sinking method of the rotating excavation end plate further improves that, during the continuous sinking, the external controller is used to control the driving of the electric bearings on the rotating shaft to adjust the rotating speed of the rotating shaft, so that the end plate body is just sunk to the preset position when rotating 180 degrees.

[0024] The sinking method of the rotating excavation end plate further improves that,

[0025] When sinking to the line of the sinking surface and the mud surface, all the excavator heads are controlled to start working at the same time;

[0026] When sinking to the preset position, the excavator heads are controlled to stop working in the order of the excavator heads rotating to 180 degrees with the end plate body.

[0027] The rotating excavation end plate of the present application is arranged with excavator heads on one side of the sinking surface of the end plate body and cooperates with the rotatable structure, realizes the cross-section excavation, improves the sinking efficiency, and does not need to arrange excavator heads on the whole sinking surface, so as to ensure the smooth sinking of the end plate structure without obstruction and reduce the cost. In addition, the sinking trajectory can be ensured not to deviate through the cooperation of the sinking of the end plate frame. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A perspective view of an embodiment of the rotating excavation end plate of the present application is shown.

[0029] Figure 2 A perspective view of an embodiment of the rotating excavation end plate of the present application is shown.

[0030] Figure 3 An embodiment of the excavator head of the rotating excavation end plate of the present application is shown.

[0031] Figure 4 An initial sinking state diagram of an embodiment of the rotating excavation end plate of the present application is shown.

[0032] Figure 5 A state diagram of an embodiment of the rotating excavation end plate of the present application during the sinking process is shown.

[0033] Figure 6 A sinking end state diagram of an embodiment of the rotating excavation end plate of the present application is shown. DETAILED DESCRIPTION

[0034] In order to solve the problems of poor putting, easy deviation of putting track and low putting efficiency under the traditional end plate structure, the application provides a rotary digging type end plate suitable for underwater salvage equipment and a sinking method thereof. The rotary digging type end plate suitable for underwater salvage equipment and the sinking method thereof are further described below in combination with the drawings.

[0035] Referring to Figures 1-3 The rotary digging type end plate structure suitable for underwater salvage equipment includes: an end plate body 1, a surface of the end plate body 1 being used to contact a mud surface line is a sinking surface, a middle position of the sinking surface is connected with a rotating shaft 14 in a direction perpendicular to the end plate body 1, the rotating shaft 14 divides the sinking surface into a first half surface and a second half surface located on two sides of the rotating shaft 14 respectively; a plurality of digging heads 2 for digging silt, the plurality of digging heads 2 are arranged on the first half surface and are fixed to the end plate body 1; and an underwater salvage equipment including an end plate frame 3 for connecting the rotating shaft 14 and driving the rotating shaft 14 to rotate.

[0036] Specifically, the end plate body 1 includes symmetrically arranged inner plates 11 and outer plates 12, a plurality of partition plates 13 are fixed between the inner plates 11 and the outer plates 12, the plurality of partition plates 13 divide the inner plates 11 and the outer plates 12 into a plurality of installation ports for one-to-one corresponding installation of the plurality of digging heads 2, and the rotating shaft 14 is connected between the inner plates 11 and the outer plates 12. In the embodiment, the digging heads 2 can adopt the head form of a pipe jacking machine as shown in Figure 3 Each installation port is fixed with an installation plate, the installation plate is provided with a clamping hole, and each digging head 2 is clamped in the corresponding clamping hole with the axis being in the vertical direction. Each digging head 2 is independently controlled by an external controller. Specifically, the side of the installation plate opposite to the sinking surface is provided with a driving device for driving the digging head 2 and a silt water circulation system for flushing and extracting silt at the digging head 2, and the driving device and the silt water circulation system are connected with the external controller, which can be a general control system arranged on the deck of the water surface.

[0037] For the above rotary digging type end plate structure, the application provides an embodiment of the end plate body 1: as shown in Figure 1 and Figure 2As shown, the end plate body 1 is a semicircle with a circular arc downward, the upper end surface of the end plate body 1 is the sinking surface, and the rotating shaft 14 is located at the center of the end plate body 1. Further, the end plate frame 3 is a rectangular frame that can be arranged around the outer periphery of the sinking surface, including two side frames and two end frames fixed between the two ends of the two side frames, and two electric bearings 31 are symmetrically arranged on the two side frames and connected with an external controller. The two ends of the rotating shaft 14 respectively extend out of the end plate body 1 (i.e. the inner plate 11 and the outer plate 12) and are connected to the two electric bearings 31. This embodiment belongs to a rotary excavation type end plate structure with non-full-face excavation, which is sunk in a rotary sinking manner. The specific steps include Figures 4-6 As shown:

[0038] Step 1, providing the above-mentioned rotary excavation type end plate suitable for underwater salvage equipment, providing the end plate frame 3 of the underwater salvage equipment, and connecting the rotating shaft 14 to the end plate frame 3. Specifically, the two ends of the rotating shaft 14 are respectively connected to the two electric bearings 31, and the end plate frame 3 is arranged around the outer periphery of the sinking surface.

[0039] Step 2, starting sinking with the sinking surface downward (i.e. the state as shown). Figure 4

[0040] Step 3, when the sinking surface contacts the mud surface line, controlling the end plate frame 3 to drive the rotating shaft 14 to rotate the end plate body 1, and controlling the excavator head 2 to start working, so that the excavator head 2 excavates silt during the rotation of the end plate body 1. The rotation direction of the rotating shaft 14 is determined by the arrangement position of the excavator head 2, and the principle is to make one side of the excavator head 2 preferentially extend into the silt to ensure that the excavator head 2 excavates silt at the first time after starting work.

[0041] Step 4, continue sinking, when sinking to a preset position and the end plate body rotates 180 degrees, stop driving the rotating shaft 14, and control the excavator head 2 to stop working. During the process of continuing sinking, the external controller is used to control the electric bearing 31 to drive the rotating shaft 14 to adjust the rotating speed of the rotating shaft 14, so that the end plate body 1 just sinks to the preset position (as shown) when rotating 180 degrees. Figures 4-6

[0042] During the process of starting sinking in step 2 and continuing sinking in step 4, the end plate frame 3 is kept in a horizontal state. Specifically, sinking positioning holes 32 are arranged on the two end frames of the end plate frame 3 (as shown). Figure 2 ​​As shown in the figure, before the sinking of the end plate body 1, two positioning piles 4 for sinking positioning can be vertically fixed in advance, and after the connecting shaft 14 is connected to the end plate frame 3, the end plate frame 3 is arranged on the positioning piles 4, so that the two positioning piles 4 pass through the two positioning holes 32, and in the sinking process, the end plate body 1 and the end plate frame 3 sink together along the positioning piles 4, as shown in the figure. Figure 6 As shown in the figure, the cooperation of the positioning piles 4 and the positioning holes 32 ensures that the end plate frame 4 remains in a horizontal state.

[0043] Preferably, in order to further avoid unnecessary energy loss of the excavator head 2, the excavator head 2 should only work when it is in the sludge, and should stop working immediately when it is out of the sludge, so as a preferred embodiment: when the end plate body 1 sinks to the line contact between the sinking surface and the mud surface, because the sinking surface is a horizontal surface of the same height, all the excavator heads 2 will contact the sludge at the same time, so all the excavator heads 2 should be controlled to start working at the same time; and considering that the end plate body 1 is sunk in a rotating manner, all the excavator heads 2 will sequentially leave the sludge according to the order from the center to the circumference of the end plate body 1 (i.e. according to the order of the excavator heads 2 rotating to 180 degrees with the end plate body 1), therefore, when the end plate body 1 sinks to the preset position, the excavator heads 2 should be controlled to stop working in the order of the excavator heads 2 rotating to 180 degrees with the end plate body 1.

[0044] The rotating excavation type end plate of the present application realizes section excavation, improves the sinking efficiency, and reduces the cost, without arranging excavator heads on the whole sinking surface, which can ensure the smooth sinking of the end plate structure without obstruction; in addition, the cooperation of the end plate frame 3 can ensure that the sinking trajectory does not deviate.

[0045] The above embodiments of the present application are described in detail in combination with the figures, and those skilled in the art can make various changes to the present application according to the above description. Therefore, some details in the embodiments should not constitute a limitation on the present application, and the scope of protection of the present application will be defined by the appended claims.

Claims

1. A rotary excavation end plate suitable for underwater salvage equipment, characterized in that, include: The end plate body has a surface that contacts the mud surface as a sinking surface. A rotating shaft is connected to the middle of the sinking surface in a direction perpendicular to the end plate body. The rotating shaft divides the sinking surface into a first half and a second half located on both sides of the rotating shaft. Multiple excavator heads for dredging silt, wherein the multiple excavator heads are fully arranged along the first half of the surface and are all fixed to the end plate body; The underwater salvage equipment includes an end plate frame for connecting the rotating shaft and driving the rotating shaft to rotate.

2. The rotary excavation end plate for underwater salvage equipment as described in claim 1, characterized in that, The end plate body includes an inner plate and an outer plate arranged symmetrically. Multiple partitions are fixed between the inner plate and the outer plate at intervals. The multiple partitions divide the inner plate and the outer plate into multiple mounting ports for the installation of multiple excavator heads in a one-to-one correspondence. The rotating shaft is connected between the inner plate and the outer plate.

3. The rotary excavation end plate for underwater salvage equipment as described in claim 1, characterized in that, The end plate body is a semi-circle with the arc at the bottom, the upper end surface of the end plate body serves as the sunken surface, and the pivot is located at the center of the end plate body.

4. The rotary excavation end plate for underwater salvage equipment as described in claim 3, characterized in that, The end plate frame is a rectangular frame that can be surrounded on the outer periphery of the sunken surface, including two side frames and two end frames fixed between the two ends of the two side frames. Electric bearings connected to an external controller are symmetrically provided on the two side frames. The two ends of the rotating shaft extend out of the end plate body and are connected to the two electric bearings.

5. The rotary excavation end plate for underwater salvage equipment as described in claim 1, characterized in that, Each of the excavator heads is independently controlled by an external controller.

6. The rotary excavation end plate for underwater salvage equipment as described in claim 1, characterized in that, The axes of all the excavator heads are set vertically.

7. A method for sinking a rotary excavation end plate, characterized in that, Including the following steps: A rotary excavating end plate as described in claim 1 is provided, along with an end plate frame for the underwater salvage equipment, and the rotating shaft is connected to the end plate frame. The rotary excavation end plate is lowered with the sinking surface facing downwards. When the sinking surface contacts the mud line, the control end plate frame drives the rotating shaft to rotate the end plate body and controls the excavator head to start working; Continue to sink. When the sinking reaches the preset position and the end plate body rotates 180 degrees, stop driving the shaft and control the excavator head to stop working.

8. The method for sinking a rotary excavation end plate as described in claim 7, characterized in that: The end plate body is a semi-circle with the arc at the bottom, the upper end surface of the end plate body serves as the recessed surface, and the rotating shaft is fixed at the center of the end plate body. The end plate frame is a rectangular frame, including two side frames and two end frames fixed between the two ends of the two side frames. Electric bearings connected to an external controller are symmetrically provided on the two side frames. The two ends of the rotating shaft extend out of the end plate body respectively. When connecting the rotating shaft to the end plate frame, the two ends of the rotating shaft are respectively connected to the two electric bearings, and the end plate frame is arranged around the outer periphery of the sunken surface. The end plate frame remains horizontal throughout the sinking process, both at the beginning and during the continued sinking.

9. The method for sinking a rotary excavation end plate as described in claim 8, characterized in that: During the continued descent, the external controller is used to control the electric bearing to drive the rotating shaft to adjust the rotation speed of the rotating shaft, so that the end plate body sinks to the preset position when it rotates 180 degrees.

10. The method for sinking a rotary excavation end plate as described in claim 8, characterized in that: When the sinking surface contacts the mud line, all the excavator heads are simultaneously controlled to start working; When the excavator head sinks to the preset position, the excavator head is controlled to stop working in sequence according to the order in which the excavator head rotates to 180 degrees with the end plate body.

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