Large ship lock deep well equipment overhauling tool and method

Abstract

The invention provides a large ship lock deep well equipment overhaul tool and method.The large ship lock deep well equipment overhaul tool comprises a left side cover plate structure, one end of the left side cover plate structure is supported at the top of a rail in a rolling mode through a left side rail wheel mechanism, the other end of the left side cover plate structure is in lap joint with one end of a main cover plate structure, and the other side of the main cover plate structure is in lap joint with a right side cover plate structure; the other end of the right cover plate structure is supported at the top of the track through a right track wheel mechanism in a rolling manner; the two ends of the main cover plate structure are supported on the tops of the rails in a rolling mode through hovering roller mechanisms. And a bearing beam for bearing is arranged at the bottom end of the main cover plate structure. The device can be used for overhauling ship lock deep well equipment, a three-section type flip cover structure is adopted, the whole frame can transversely move along a well mouth of a pump room of the deep well equipment, and the position of a construction operation site and the operation position of a special tool are convenient to adjust.

Description

Technical Field

[0001] The invention belongs to the technical field of ship lock equipment maintenance, and specifically relates to a large ship lock deep well equipment maintenance tool and method. Background Art

[0002] The deep well equipment of a certain ship lock is set in the pump room on both sides of the lock chamber. The pump room starts from the lock face and digs about 80 meters to the bottom of the water conveyance corridor to form a deep well. The wellhead is poured with a concrete foundation and covered with a metal structure cover. The deep well equipment in the pump room includes two deep well pumps and a set of submersible sewage pumps. The sewage pump needs to be repaired after running for a period of time, or it needs to be lifted and repaired when a failure occurs. Due to space limitations, it is necessary to set up special tooling to lift the sewage pump. After the maintenance is completed, it needs to be dismantled again. The above-mentioned entire maintenance operation process is relatively cumbersome and the work efficiency is relatively low. In addition, the entrance of the deep well usually needs to be covered with a metal structure cover to ensure safety. During maintenance, the metal structure cover needs to be opened, but the wellhead cover of the deep well pump room is large in size and weight and difficult to open, and the operation process is time-consuming and laborious. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a large-scale ship lock deep well equipment maintenance tool and method. This device can be used to repair the ship lock deep well equipment. It adopts a three-section flip cover structure. The overall frame can move horizontally along the wellhead of the deep well equipment pump room, which is convenient for adjusting the construction site position and the special tooling operation position. The middle tooling uses a spring suspension method. When it is working, it can automatically fall into place under the gravity load as a special tooling for submersible pump removal. There is no need to set up a separate tooling for repair, which reduces the transportation work of tooling, safety guardrails, etc.

[0004] In order to realize the above-mentioned technical features, the object of the present invention is realized as follows: a large-scale ship lock deep well equipment maintenance tool, comprising a left-side cover plate structure, one end of the left-side cover plate structure is rollingly supported on the top of the track through a left-side track wheel mechanism, the other end of the left-side cover plate structure is overlapped on one end of the main cover plate structure, the other side of the main cover plate structure is overlapped with the right-side cover plate structure, the other end of the right-side cover plate structure is rollingly supported on the top of the track through a right-side track wheel mechanism; the two ends of the main cover plate structure are rollingly supported on the top of the track through a hovering roller mechanism; the bottom end of the main cover plate structure is provided with a load-bearing beam for bearing weight.

[0005] The left cover plate structure comprises a first cover plate, a first reinforcing rib plate is arranged at the bottom end of the first cover plate, and a first slot structure for overlapping with the main cover plate structure is arranged at the edge of the first cover plate.

[0006] The right cover plate structure includes a second cover plate, a second reinforcing rib plate is arranged at the bottom end of the second cover plate, and a second slot structure for overlapping with the main cover plate structure is arranged at the edge of the second cover plate.

[0007] The left rail wheel mechanism and the right rail wheel mechanism adopt the same structure. The left rail wheel mechanism includes a first wheel axle supported at the bottom end of the corresponding first cover plate, and a first rail wheel is rotatably mounted on the first wheel axle. The first rail wheel is rollingly supported on the top of the rail.

[0008] The left rail wheel mechanism and the right rail wheel mechanism can be flipped and supported by the corresponding first rail wheels to be in an upright state.

[0009] During the inspection and maintenance process, the left rail wheel mechanism and the right rail wheel mechanism are flipped to an upright state and then fixedly connected by a plurality of connecting rods.

[0010] The main cover plate structure includes a main cover plate, a cover plate reinforcement rib plate is arranged at the bottom end of the main cover plate, and protrusion structures for cooperating with the first slot structure and the second slot structure are arranged at the two ends of the top of the main cover plate; and protruding support plates for installing the hovering roller mechanism are arranged on both sides of the main cover plate.

[0011] The hovering roller mechanism includes a spring supported at the bottom end of the extended support plate, the spring is supported on the main wheel shaft through a wheel seat, the main wheel shaft is equipped with a main track wheel, the main track wheel is rollingly supported on the top of the track, and the other end of the main wheel shaft is equipped with a latch.

[0012] The spring lifts the main cover plate to a certain height and separates it from the wellhead concrete foundation when not undergoing maintenance, so that the entire maintenance tool can move along the track; Under maintenance conditions, the spring is compressed by the weight on the load-bearing beam, and the main cover plate is supported on the wellhead concrete foundation; The end of the track is provided with a track limiting block.

[0013] A maintenance method for large-scale ship lock deep well equipment, the maintenance method is implemented by using the maintenance tool, comprising the following steps: Step 1, installation of maintenance tooling: Move the left cover plate structure and the right cover plate structure to the side of the well, flip them open along the corresponding wheel axles of the left track wheel mechanism and the right track wheel mechanism to an upright state, connect the left cover plate structure and the right cover plate structure with a connecting rod, surround the wellhead of the deep well pump room to form a guardrail, and move the main cover plate structure to directly above the submersible pump; Step 2, lifting of submersible pump: The crane drops the hook from the wellhead of the deep well pump room to the submersible pump hoisting wire rope, hangs the wire rope on the hook, slowly lifts and removes the clamps between the submersible pump wire rope and the submersible pump drive cable one by one, until the first and second wire rope connection points are lifted out to the submersible pump lifting maintenance tooling, adjust the hook of the ring chain hoist in the maintenance tooling to the corresponding position, hang the first and second wire rope connection points of the submersible pump on the hook of the ring chain hoist, drop the crane hook and untie the first wire rope, at this time, the submersible pump maintenance tooling bears the weight of the submersible pump, causing the spring on the suspended roller mechanism to be compressed, and then the main cover plate structure and the load-bearing beam are lowered in height, and finally supported on the wellhead concrete foundation to bear the weight of the submersible pump; Step 3, continue to hoist the submersible pump: Lower the crane hook to the same height as the chain hoist, hang the second section of wire rope on the crane hook with a shackle, lower the hook height of the chain hoist and untie the second section of wire rope of the submersible pump, repeat the clamp disassembly steps and the hook replacement steps in step 2, lift the third to sixth sections of wire rope in turn, and finally use the crane to lift the submersible pump out of the pump room; Step 4, reinstallation of submersible pump: Use a crane to lift the replaced submersible pump, connect the first and second sections of steel wire rope and hoist it into the water, connect the drive cable to test whether the submersible pump functions properly, and after confirming that the submersible pump is operating normally, remove the cable, hoist the submersible pump into the track and connect the submersible pump steel wire rope and cable with a clamp, wait until the sixth section of steel wire rope is fully hoisted into the pump room, adjust the hook height of the chain hoist, use the shackle to hang the steel wire rope on the hook, continue to lower the height of the crane hook and remove the sixth section of steel wire rope, lift the crane hook to the gate surface and hang the top of the fifth section of steel wire rope, connect the bottom end of the fifth section of steel wire rope with the sixth section of steel wire rope, lift the crane hook and make the entire weight of the submersible pump bear on the crane hook, and at the same time lower the hook height of the chain hoist until the sixth section of steel wire rope is removed, and repeat the above steps until the submersible pump is docked with the bottom well coupling device; Step 5, storage of maintenance tools: Lift the crane hook out of the pump room and retract the lifting arm, retract the hook of the chain lifter at the bottom of the main cover structure to the limit position, move the main cover structure to the middle position of the wellhead, remove the connecting rod, and rotate the left cover structure and the right cover structure along the left track wheel mechanism and the right track wheel mechanism respectively until they are clamped on the main cover structure.

[0014] The present invention has the following beneficial effects: 1. The deep well equipment maintenance device described in the present invention comprises a left cover plate structure and a right cover plate structure which can be lifted up on both sides as safety guardrails, and a movable main cover plate structure in the middle. When the three parts are placed horizontally, they are assembled together to form a deep well pump room roof for sunshade and rain protection, so as to be used for normal protection.

[0015] 2. The three parts of the above device of the present invention are all equipped with moving rollers, and the corresponding positions can be adjusted according to the needs of the site. The moving roller of the middle main cover plate structure is connected to the tooling by a spring. Before the lifting load is not applied, the spring supports the entire tooling to be suspended on the roller, so that the tooling can move with the roller track. After the load is applied, the spring is compressed, and the tooling is installed on the concrete foundation of the pump room to fix the tooling.

[0016] 3. The left side cover plate structure can be used to protect the wellhead after it is laid flat in normal conditions.

[0017] 4. The above-mentioned right side cover plate structure can be used to protect the wellhead after it is laid flat in normal conditions.

[0018] 5. The left rail wheel mechanism and the right rail wheel mechanism mentioned above can realize the movement of the entire maintenance tool along the track.

[0019] 6. The left track wheel mechanism and the right track wheel mechanism are used to ensure the upright flipping of the left cover plate structure and the right cover plate structure.

[0020] 7. A fence structure can be formed by the above-mentioned connecting rods.

[0021] 8. The main cover plate structure can be used to fix and install the load-bearing beam, and it is convenient to fix the left cover plate structure and the right cover plate structure at the same time.

[0022] 9. The above-mentioned hovering roller mechanism facilitates the subsequent mobile support of the entire main cover structure, thereby facilitating its movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is the front view of the present invention.

[0025] Figure 2 It is a side sectional view of the part where the hovering roller mechanism of the present invention is located.

[0026] Figure 3 For the present invention Figure 2 A partial enlarged view of the mid-hover roller mechanism.

[0027] Figure 4 It is a state diagram of the specific lifting process of the present invention.

[0028] Figure 5 For the present invention Figure 4 Partial view of the lifting process of the middle main cover plate structure.

[0029] In the figure: left cover plate structure 1, left track wheel mechanism 2, load-bearing beam 3, main cover plate structure 4, right cover plate structure 5, hovering roller mechanism 6, track 7, wellhead concrete foundation 8, connecting rod 9, chain hoist 10, weight 11, right track wheel mechanism 12, limit block 13; A first cover plate 101, a first reinforcing rib plate 102, and a first slot structure 103; A first wheel shaft 201, a first track wheel 202; Main cover plate 401, cover plate reinforcing rib plate 402, outward support plate 403, protruding structure 404; Spring 601 , wheel seat 602 , main wheel shaft 603 , main track wheel 604 , latch 605 . DETAILED DESCRIPTION

[0030] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0031] like Figure 1-5 As shown, a large ship lock deep well equipment maintenance tool includes a left cover plate structure 1, one end of the left cover plate structure 1 is rollingly supported on the top of the track 7 through the left track wheel mechanism 2, the other end of the left cover plate structure 1 is overlapped on one end of the main cover plate structure 4, the other side of the main cover plate structure 4 is overlapped with the right cover plate structure 5, and the other end of the right cover plate structure 5 is rollingly supported on the top of the track 7 through the right track wheel mechanism 12; both ends of the main cover plate structure 4 are rollingly supported on the top of the track 7 through the suspended roller mechanism 6; the bottom end of the main cover plate structure 4 is provided with a load-bearing beam 3 for bearing weight. The deep well equipment maintenance device described in the present invention includes a left cover plate structure 1 and a right cover plate structure 5, both sides of which can be lifted up as safety guardrails, and a movable main cover plate structure 4 in the middle. When the three parts are placed horizontally, they are assembled together to form a deep well pump room roof for sunshade and rain protection, so as to be used as normal protection. A deep well equipment maintenance device comprises a left cover plate structure 1 and a right cover plate structure 5 which can be lifted up on both sides as safety guardrails, and a movable main cover plate structure 4 in the middle. When the three parts are placed horizontally, they are assembled together to form a deep well pump room roof for sunshade and rain protection, so as to be used as normal protection.

[0032] Furthermore, the left cover plate structure 1 includes a first cover plate 101, a first reinforcing rib plate 102 is provided at the bottom end of the first cover plate 101, and a first slot structure 103 for overlapping with the main cover plate structure 4 is provided at the edge of the first cover plate 101. The left cover plate structure 1 can be used to protect the wellhead after it is laid flat in normal state. The structural strength and stability are guaranteed by the above-mentioned structural form. The left cover plate structure 1 is convenient to cooperate with the main cover plate structure 4.

[0033] Furthermore, the right side cover plate structure 5 includes a second cover plate 501, a second reinforcing rib plate 502 is provided at the bottom end of the second cover plate 501, and a second slot structure 503 for overlapping with the main cover plate structure 4 is provided at the edge of the second cover plate 501. The right side cover plate structure 5 can be used to protect the wellhead after it is laid flat in normal state. Moreover, the structural strength and stability are guaranteed by the above structural form.

[0034] Furthermore, the left rail wheel mechanism 2 and the right rail wheel mechanism 12 adopt the same structure, and the left rail wheel mechanism 2 includes a first wheel shaft 201 supported at the bottom end of the corresponding first cover plate 101, and a first rail wheel 202 is rotatably mounted on the first wheel shaft 201, and the first rail wheel 202 is rollingly supported on the top of the rail 7. The movement of the entire maintenance tool along the rail 7 can be achieved through the above-mentioned left rail wheel mechanism 2 and right rail wheel mechanism 12.

[0035] Furthermore, the left rail wheel mechanism 2 and the right rail wheel mechanism 12 can be flipped and supported to be upright on the corresponding first rail wheel 202. The left rail wheel mechanism 2 and the right rail wheel mechanism 12 ensure the upright flipping of the left cover plate structure 1 and the right cover plate structure 5.

[0036] Furthermore, during the maintenance process, the left rail wheel mechanism 2 and the right rail wheel mechanism 12 are flipped to an upright state and then fixedly connected by a plurality of connecting rods 9. The connecting rods 9 can form a fence structure.

[0037] Furthermore, the main cover plate structure 4 includes a main cover plate 401, a cover plate reinforcing rib plate 402 is provided at the bottom end of the main cover plate 401, and protrusion structures 404 for matching with the first slot structure 103 and the second slot structure 503 are provided at the top ends of the main cover plate 401; and an overhanging support plate 403 for installing the hovering roller mechanism 6 is provided on both sides of the main cover plate 401. The main cover plate structure 4 can be used to fix and install the load-bearing beam 3. It is also convenient to fix the left cover plate structure 1 and the right cover plate structure 5 at the same time.

[0038] Furthermore, the hovering roller mechanism 6 includes a spring 601 supported at the bottom end of the extended support plate 403, the spring 601 is supported on the main wheel shaft 603 through the wheel seat 602, the main wheel shaft 603 is equipped with a main track wheel 604, the main track wheel 604 is rollingly supported on the top of the track 7, and the other end of the main wheel shaft 603 is equipped with a latch 605. The above-mentioned hovering roller mechanism 6 facilitates the subsequent mobile support of the entire main cover plate structure 4, thereby facilitating its movement.

[0039] Furthermore, the spring 601 lifts the main cover plate 401 to a certain height and separates it from the wellhead concrete foundation 8 under non-maintenance conditions, so that the entire maintenance tooling can move along the track 7; under maintenance conditions, the spring 601 is compressed under the pressure of heavy objects on the load-bearing beam 3, and the main cover plate 401 is supported on the wellhead concrete foundation 8.

[0040] Furthermore, a track limit block 13 is provided at the end of the track 7. The track limit block 13 facilitates the subsequent movement and positioning of the maintenance tool to prevent the risk of derailment.

[0041] Embodiment 2: A maintenance method for large-scale ship lock deep well equipment, the maintenance method is implemented by using the maintenance tool, comprising the following steps: Step 1, installation of maintenance tooling: Move the left cover plate structure 1 and the right cover plate structure 5 to the side of the well, turn over the corresponding wheel axles of the left track wheel mechanism 2 and the right track wheel mechanism 12 to an upright state, connect the left cover plate structure 1 and the right cover plate structure 5 with the connecting rod 9, surround the wellhead of the deep well pump room to form a guardrail, and move the main cover plate structure 4 to the top of the submersible pump 11; Step 2, lifting of submersible pump: The crane drops the hook from the wellhead of the deep well pump room to the submersible pump 11 hoisting wire rope, hangs the wire rope on the hook, slowly lifts and removes the clamps between the submersible pump wire rope and the submersible pump 11 drive cable one by one, until the first and second wire rope connection points are lifted out to the submersible pump 11 lifting maintenance tooling, adjust the hook of the chain hoist 10 in the maintenance tooling to the corresponding position, hang the first and second wire rope connection points of the submersible pump 11 on the hook of the chain hoist 10, drop the crane hook and untie the first wire rope, at this time, the submersible pump maintenance tooling causes the spring 601 on the suspended roller mechanism 6 to be compressed due to the weight of the submersible pump 11, and then the main cover plate structure 4 and the load-bearing beam 3 are lowered in height, and finally supported on the wellhead concrete foundation 8 to bear the weight of the submersible pump 11; Step 3, continue to hoist the submersible pump: Lower the hook of the crane to the same height as the chain hoist 10, hang the second section of the wire rope on the crane hook with a shackle, lower the hook height of the chain hoist 10 and untie the second section of the wire rope of the submersible pump, repeat the fixture disassembly steps and the hook replacement steps in step 2, lift the third to sixth sections of the wire rope in sequence, and finally use the crane to lift the submersible pump 11 out of the pump room; Step 4, reinstallation of submersible pump: Use a crane to lift the replaced submersible pump, connect the first and second sections of the wire rope and hoist it into the water, connect the drive cable to test whether the submersible pump function is intact, and after confirming that the submersible pump is operating normally, remove the cable, hoist the submersible pump into the track and connect the submersible pump wire rope and the cable with a clamp, wait until the sixth section of the wire rope is fully hoisted into the pump room, adjust the hook height of the chain hoist 10, use the shackle to hang the wire rope on the hook, continue to lower the height of the crane hook and remove the sixth section of the wire rope, lift the crane hook to the gate surface and hang the top of the fifth section of the wire rope, connect the bottom end of the fifth section of the wire rope with the sixth section of the wire rope, lift the crane hook and make the entire weight of the submersible pump bear on the crane hook, and at the same time lower the hook height of the chain hoist 10 until the sixth section of the wire rope is removed, and repeat the above steps until the submersible pump is docked with the bottom well coupling device; Step 5, storage of maintenance tools: Lift the crane hook out of the pump room and retract the lifting arm, retract the hook of the lower chain lifter 10 of the main cover structure 4 to the limit position, move the main cover structure 4 to the middle position of the wellhead, remove the connecting rod 9, and rotate the left cover structure 1 and the right cover structure 5 along the left track wheel mechanism 2 and the right track wheel mechanism 12 respectively until they are clamped on the main cover structure 4.

Claims

1. A large ship lock deep well equipment maintenance tool, characterized in that: The invention comprises a left cover plate structure (1), one end of the left cover plate structure (1) is rollingly supported on the top of a track (7) through a left track wheel mechanism (2), the other end of the left cover plate structure (1) is overlapped on one end of a main cover plate structure (4), the other side of the main cover plate structure (4) is overlapped with a right cover plate structure (5), the other end of the right cover plate structure (5) is rollingly supported on the top of the track (7) through a right track wheel mechanism (12); both ends of the main cover plate structure (4) are rollingly supported on the top of the track (7) through a hovering roller mechanism (6); and a load-bearing beam (3) for bearing weight is provided at the bottom end of the main cover plate structure (4).

2. According to claim 1, a large ship lock deep well equipment maintenance tool is characterized by: The left cover plate structure (1) comprises a first cover plate (101), a first reinforcing rib plate (102) being provided at the bottom end of the first cover plate (101), and a first slot structure (103) for overlapping with the main cover plate structure (4) being provided at the edge of the first cover plate (101).

3. According to claim 1, a large ship lock deep well equipment maintenance tool is characterized by: The right cover plate structure (5) comprises a second cover plate (501), a second reinforcing rib plate (502) being provided at the bottom end of the second cover plate (501), and a second slot structure (503) for overlapping with the main cover plate structure (4) being provided at the edge of the second cover plate (501).

4. According to claim 2, a large ship lock deep well equipment maintenance tool is characterized in that: The left rail wheel mechanism (2) and the right rail wheel mechanism (12) have the same structure. The left rail wheel mechanism (2) comprises a first wheel axle (201) supported at the bottom end of the corresponding first cover plate (101), a first rail wheel (202) being rotatably mounted on the first wheel axle (201), and the first rail wheel (202) being rollingly supported on the top of the rail (7).

5. A large ship lock deep well equipment maintenance tool as described in claim 4, characterized in that: The left rail wheel mechanism (2) and the right rail wheel mechanism (12) can be flipped and supported on the corresponding first rail wheels (202) to be in an upright state.

6. A large ship lock deep well equipment maintenance tool as described in claim 5, characterized in that: During the maintenance process, the left rail wheel mechanism (2) and the right rail wheel mechanism (12) are flipped to an upright state and then fixedly connected via a plurality of connecting rods (9).

7. According to claim 3, a large ship lock deep well equipment maintenance tool is characterized in that: The main cover plate structure (4) comprises a main cover plate (401), a cover plate reinforcing rib plate (402) being arranged at the bottom end of the main cover plate (401), and protruding structures (404) for cooperating with the first slot structure (103) and the second slot structure (503) being arranged at the top two ends of the main cover plate (401); and extended support plates (403) for mounting a hovering roller mechanism (6) are arranged on both sides of the main cover plate (401).

8. A large ship lock deep well equipment maintenance tool as claimed in claim 7, characterized in that: The hovering roller mechanism (6) comprises a spring (601) supported at the bottom end of the extended support plate (403); the spring (601) is supported on a main wheel shaft (603) through a wheel seat (602); a main track wheel (604) is mounted on the main wheel shaft (603); the main track wheel (604) is rollingly supported on the top of the track (7); and a latch (605) is mounted on the other end of the main wheel shaft (603).

9. A large ship lock deep well equipment maintenance tool as claimed in claim 8, characterized in that: The spring (601) lifts the main cover plate (401) to a certain height and separates it from the wellhead concrete foundation (8) when not undergoing maintenance, so that the entire maintenance tool can move along the track (7); Under maintenance conditions, the spring (601) is compressed by the weight on the load-bearing beam (3), and the main cover plate (401) is supported on the wellhead concrete foundation (8); A track limit block (13) is provided at the end of the track (7).

10. A maintenance method for large-scale ship lock deep well equipment, characterized in that: The maintenance method is implemented by using the maintenance tool according to any one of claims 1 to 9, and comprises the following steps: Step 1, installation of maintenance tooling: The left cover plate structure (1) and the right cover plate structure (5) are moved to the side of the well, and the corresponding wheel axles of the left track wheel mechanism (2) and the right track wheel mechanism (12) are turned up to an upright state, and the left cover plate structure (1) and the right cover plate structure (5) are connected by a connecting rod (9) to surround the wellhead of the deep well pump room to form a guardrail, and the main cover plate structure (4) is moved to the top of the submersible pump (11); Step 2, lifting of submersible pump: The crane lowers the hook from the wellhead of the deep well pump room to the submersible pump (11) hoisting wire rope, hangs the wire rope on the hook, slowly lifts and removes the clamps between the submersible pump wire rope and the submersible pump (11) drive cable one by one, until the first and second wire rope connection points are lifted out to the submersible pump (11) hoisting maintenance tooling, adjusts the hook of the chain hoist (10) in the maintenance tooling to the corresponding position, hangs the first and second wire rope connection points of the submersible pump (11) on the hook of the chain hoist (10), drops the crane hook and unties the first wire rope, and at this time, the submersible pump maintenance tooling bears the weight of the submersible pump (11), causing the spring (601) on the suspension roller mechanism (6) to be compressed, and then the main cover plate structure (4) and the load-bearing beam (3) are lowered in height, and finally supported on the wellhead concrete foundation (8) to bear the weight of the submersible pump (11); Step 3, continue to hoist the submersible pump: Lower the hook of the crane to the same height as the chain hoist (10), hang the second section of the wire rope on the crane hook using a shackle, lower the hook height of the chain hoist (10) and unhook the second section of the wire rope of the submersible pump, repeat the steps of disassembling the clamp and replacing the hook in step 2, lift the third to sixth sections of the wire rope in sequence, and finally use the crane to lift the submersible pump (11) out of the pump room; Step 4, reinstallation of submersible pump: Use a crane to lift the new submersible pump, connect the first and second steel wire ropes and lift it into the water, connect the drive cable to test whether the submersible pump functions properly, and after confirming that the submersible pump is operating normally, remove the cable, lift the submersible pump into the track and connect the submersible pump steel wire rope and the cable with a clamp, wait until the sixth steel wire rope is fully lifted into the pump room, adjust the hook height of the chain hoist (10), use the shackle to hang the steel wire rope on the hook, continue to lower the crane hook height and remove the sixth steel wire rope, lift the crane hook to the gate surface and hang the top of the fifth steel wire rope, connect the bottom end of the fifth steel wire rope with the sixth steel wire rope, lift the crane hook so that the entire weight of the submersible pump is carried on the crane hook, and at the same time lower the hook height of the chain hoist (10) until the sixth steel wire rope is removed, and repeat the above steps until the submersible pump is connected to the bottom well coupling device; Step 5, storage of maintenance tools: Lift the crane hook out of the pump room and retract the lifting arm, retract the hook of the lower chain hoist (10) of the main cover plate structure (4) to the limit position, move the main cover plate structure (4) to the middle position of the wellhead, remove the connecting rod (9), and rotate the left cover plate structure (1) and the right cover plate structure (5) along the left track wheel mechanism (2) and the right track wheel mechanism (12) respectively until they are clamped on the main cover plate structure (4).

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