Ship lift anti-collision lock bar overhauling device and overhauling method

Abstract

A ship lift anti-collision lock latch overhauling device and overhauling method, mainly comprising a support seat assembly, the support seat assembly is fixed above the anti-collision lock latch device, a horizontal moving mechanism is installed on the support seat assembly, the horizontal moving mechanism drives the whole horizontal movement of a lifting mechanism and a locking mechanism; the lifting mechanism drives the lifting or lowering of the locking mechanism; the locking mechanism is locked with the anti-collision lock latch device; a turnover mechanism is installed on one side of the support seat assembly, the turnover mechanism drives the turnover of the anti-collision lock latch device; a clamping hook pressing assembly is arranged on both sides of the support seat assembly, the anti-collision lock latch device is pressed, the locking mechanism is unlocked and separated from the anti-collision lock latch device. The ship lift anti-collision lock latch overhauling device and overhauling method can meet the overhauling requirement of the anti-collision lock latch in a narrow space, ensure the construction safety and improve the overhauling efficiency.

Description

Technical Field

[0001] This invention relates to the field of ship lift maintenance technology, and in particular to a ship lift anti-collision latch maintenance device and maintenance method. Background Technology

[0002] Ship lifts, as facilities for rapid ship passage through dams, have complex structures, numerous operating mechanisms, and a compact layout, resulting in limited space for maintenance and repair. Two anti-collision devices are arranged anti-symmetrically at both ends of the ship compartment, on the inner front of each compartment door, to prevent runaway ships from colliding with the lock gate and causing accidents. The anti-collision latch, a core component of the anti-collision device, is connected to the wire rope. During long-term operation, the latch hooks experience varying degrees of wear, and severe wear can lead to insecure locking. The latch hook device has a complex structure and a small operating space (2000mm long × 1200mm wide). Currently, there is a lack of complete maintenance procedures and specialized tooling, making latch positioning, hook locking, unlocking, and disassembly difficult, resulting in low maintenance efficiency and safety risks. The existing Chinese patent No. 201520379526.5 discloses an automatic unlocking latch device for anti-collision equipment of a ship lift. It mainly describes the structural features of the anti-collision latch device itself, but does not consider the inspection and maintenance after the latch device wears out during operation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a maintenance device and method for the anti-collision latch of a ship lift. The maintenance device can meet the maintenance requirements of the anti-collision latch, and the maintenance device and method can be adapted to maintenance operations in narrow spaces. It can achieve precise positioning, locking, unlocking of the anti-collision latch device and fixation of the wire rope end, ensuring construction safety and improving maintenance efficiency.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A maintenance device for a ship lift anti-collision latch includes a support assembly fixed above an anti-collision latch device. A horizontal moving mechanism is installed on the support assembly, which drives a lifting mechanism and a locking mechanism to move horizontally as a whole. The lifting mechanism drives the locking mechanism to rise or fall. The locking mechanism locks with the anti-collision latch device. A flipping mechanism is installed on one side of the support assembly, which flips the anti-collision latch device. A hook clamping assembly is arranged on both sides of the support assembly to press the anti-collision latch device, thereby unlocking and disengaging the locking mechanism from the anti-collision latch device.

[0005] The support assembly is a hollow structure with a central section made of spliced ​​plates. It includes a bottom support base, which is fixed on the deck of the ship's cabin. Two sets of side support bases are symmetrically arranged on the bottom support base at their lower ends and top support bases are installed on their upper ends. Each side support base has a rectangular hole, and each side support base has a lifting lug on its inner side and a U-shaped plate and a U-shaped groove on its outer side.

[0006] The horizontal moving mechanism includes a guide rail slider assembly, which is mounted on the top of two sets of top support seats. The support platform slides left and right along the guide rail slider assembly and is driven by the second lead screw nut assembly.

[0007] The lifting mechanism includes a lift, which is installed on a support platform. The output end of the lift is connected to the bottom plate below. The lower end of the guide rod is fixed on the bottom plate, and the middle section slides with a linear bearing on the support platform.

[0008] The locking mechanism includes a first lead screw and nut assembly. The nut of the first lead screw and nut assembly is mounted on a support platform. The lower end of the lead screw shaft of the first lead screw and nut assembly is rotatably connected to a connecting shaft through a bearing assembly. The connecting shaft freely passes through a locking pin and is fixedly connected to a locking block. The locking pin is fixed on the base plate and has a through groove that slides up and down with the locking block.

[0009] The flipping mechanism includes a base on which a disc is rotatably mounted. One side of the disc is connected to a drive device, and the center of the disc is assembled with a nut in a third lead screw and nut assembly. One end of the lead screw shaft in the third lead screw and nut assembly is rotatably connected to a central shaft. A sliding shaft is mounted on the central shaft, and a sliding sleeve is slidably mounted on the sliding shaft. The other end of the sliding sleeve is connected to the disc. At least two sets of double forks are hinged to the sliding shaft and the sliding sleeve, and a pressure plate is hinged to the outer side of each set of double forks. When the sliding shaft moves closer to or further away from the sliding sleeve, the multiple sets of pressure plates open or close.

[0010] The drive device includes a motor mounted on a base, a gear one mounted on the motor output shaft, gear one meshing with gear two, gear two and a disc respectively mounted on both sides of the inner ring of the slewing support bearing, and the outer ring of the slewing support bearing mounted on the support side plate.

[0011] The hook clamping assembly is a screw and nut structure. The nut of the hook clamping assembly is clamped with the U-shaped groove, and the screw of the hook clamping assembly contacts the hook of the anti-collision latch device to achieve clamping.

[0012] The wire rope fixing cone sleeve includes two semi-conical sleeves. The two semi-conical sleeves are hinged at one end and have a second lifting lug at the other end. The second lifting lug is connected to the support platform and tightened through a connector. The two semi-conical sleeves have guide grooves along the axial direction. The arc wedge blocks slide back and forth along the guide grooves and are locked by adjusting bolts.

[0013] A method for overhauling the anti-collision latch of a ship lift includes the following steps: S1: The wire rope is in tension and active state, the anti-collision latch device is in retracted and unlocked state, and the anti-collision truss is raised to the position and locked in the maintenance mode. The anti-collision latch maintenance device is installed on the zero deck directly above the anti-collision latch device and fixed by the anchor bolts on the deck. S2: Install the wire rope fixing cone sleeve near the wire rope end, and adjust the adjusting bolt inside the wire rope fixing cone sleeve to clamp and fix the wire rope. S3: Rotate the handwheel in the horizontal moving mechanism to move the support platform. Stop when the locking pin in the locking mechanism on the support platform is concentric with the locking hole in the anti-collision latch device. S4: Use two small hand chain hoists with hooks at both ends to hang on the lifting lug 3 in the wire rope fixing cone sleeve and the lifting lug 2 in the support platform respectively. Adjust the hand chain hoists to put them in a taut and stressed state. During maintenance operations, the wire rope is released. At this time, the wire rope end has been completely fixed by the anti-collision latch maintenance device to avoid the anti-collision latch device from overturning and falling off the groove due to the weight of the wire rope itself after the wire rope is released. S5: Simultaneously rotate the two handwheels located on the hoisting mechanism and the locking mechanism to insert the locking pin into the locking hole in the anti-collision latch device, then stop rotating the handwheel in the hoisting mechanism, and continue rotating the handwheel in the locking mechanism to move the locking block down to the locking position, thereby locking the locking pin with the hook assembly. S6: Simultaneously rotate the two handwheels located in the lifting mechanism and the locking mechanism to lift the entire anti-collision latch device from the sinkhole under the ship's deck to a position more than 100mm above the deck height, ensuring that the anti-collision latch device has sufficient overall tilting operation space; S7: Rotate the handwheel in the horizontal moving mechanism to make the support platform continue to move. When the anti-collision latch device is moved to the maintenance position, manually push the flipping mechanism to make the two sets of clamping plates at the front end enter between the upper fixed plate and the lower fixed plate. Rotate the handwheel in the flipping mechanism to make the sliding shaft slide with the relative sliding sleeve. The sliding shaft drives the double fork arm to move relative to each other, so that the two sets of clamping plates are radially opened along the central axis, so that the two sets of clamping plates contact and press against the upper fixed plate and the lower fixed plate respectively. S8: Alternately remove the hand-operated hoist hooks on the second lifting lug near the support platform and hang them on the two first lifting lugs in the side support seat to achieve the fixed support of the steel wire rope's own weight by the side support seat. S9: Take the two sets of hook clamping components out of the U-shaped plate on the side support and install them in the U-shaped grooves on both sides of the support. Manually adjust the length of the screw in the hook clamping component so that the front end of the screw presses against the hook component. Rotate the handwheel in the locking mechanism to move the locking block to the unlocking position, so that the locking pin and the hook component can be unlocked. S10: Simultaneously rotate the two handwheels located on the lifting mechanism and the locking mechanism to disengage the locking pin from the anti-collision latch device as a whole, adjust the two sets of hook clamping components to disengage from the hook components, and reinstall the hook clamping components on the U-shaped plate of the side support base. S11: Start the motor to drive the tilting mechanism to rotate the anti-collision latch device by 90° and then stop the machine. Use pads to fill the gap between the anti-collision latch device and the ship deck. Turn the handwheel in the horizontal moving mechanism to move the support platform to the initial position and ensure that the anti-collision latch device has enough maintenance and operation space. S12: Alternately remove the connecting bolts between the upper and lower fixing plates and the hook assembly and rope end fixing parts to disassemble and repair the hook assembly and rope end fixing parts. During the repair, ensure that the relative positions of the upper and lower fixing plates remain unchanged and that they are always in contact with and pressed against the pressure plate. After the repair is completed, reverse the steps S11 to S1 to remove the machine anti-collision latch repair device.

[0014] This invention provides a device and method for inspecting and repairing the anti-collision latch of a ship lift, which has the following technical advantages: 1) This device can achieve precise positioning, locking, removal, clamping, unlocking and flipping of the anti-collision latch device in narrow spaces, improving maintenance efficiency.

[0015] 2) The wire rope fixing cone sleeve can clamp or loosen the wire rope by adjusting the bolt. It is easy to install and simple to operate. It can adapt to wire ropes of different diameters and avoid the anti-collision latch device from overturning and falling out of the groove due to the weight of the wire rope itself after the wire rope is released, thus ensuring maintenance safety.

[0016] 3) The lifting and locking mechanisms are operated synchronously to raise or lower the mechanism and the anti-collision latch device as a whole. The locking mechanism is operated independently to lock and unlock the anti-collision latch device. The device has a compact structure and is suitable for operation in narrow spaces.

[0017] 4) The flipping mechanism drives the double fork arms to move relative to each other through the sliding shaft, so that the two sets of clamping plates are radially opened or closed along the central axis. This allows the two sets of clamping plates to contact and press against the upper and lower fixed plates respectively, and finally flip the anti-collision latch device 90° to the maintenance position, avoiding multiple manual adjustments and operations and improving maintenance efficiency.

[0018] 5) This method addresses the difficulty of repairing the anti-collision latch device located in the sinkhole under the ship's deck (1000mm long × 400mm wide × 110mm high). It allows for manual external operation of the handwheels and motors of the various mechanisms within the device, providing a large operating space and requiring less effort, thus enabling rapid repair. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is the general layout diagram of the present invention (a represents the installation position of the device, b represents the anti-collision truss, and c represents the steel wire rope).

[0020] Figure 2 This is a partial enlarged layout diagram of the present invention (d represents the sinking trough, e represents the zero-level deck of the ship compartment).

[0021] Figure 3 This is a structural diagram of the device of the present invention.

[0022] Figure 4 This is a front view of the device of the present invention.

[0023] Figure 5 This is a left view of the device of the present invention.

[0024] Figure 6 This is a top view of the device of the present invention.

[0025] Figure 7 This is a structural diagram of the support base assembly and horizontal moving mechanism of the present invention.

[0026] Figure 8 This is a structural diagram of the lifting mechanism and locking mechanism of the present invention.

[0027] Figure 9 This is a front view of the lifting mechanism and locking mechanism of the present invention.

[0028] Figure 10 This is a partially enlarged view of the locking mechanism of the present invention.

[0029] Figure 11 This is a structural diagram of the wire rope fixing cone of the present invention.

[0030] Figure 12 This is the front view of the flipping mechanism of the present invention.

[0031] Figure 13 This is a left view of the flipping mechanism of the present invention.

[0032] Figure 14 This is a top view of the flipping mechanism of the present invention.

[0033] Figure 15 This is a diagram showing the working state of the hook clamping component of the present invention.

[0034] Figure 16 This is a top view of the anti-collision latch device of the present invention (f represents the locking hole).

[0035] Figure 17 This is a front view of the anti-collision latch device of the present invention.

[0036] Figure 18This is a left view of the anti-collision latch device of the present invention.

[0037] Figure 19 This is a partial exploded structural diagram of the wire rope fixing cone in this invention. Detailed Implementation

[0038] like Figure 2-3 As shown, firstly, the anti-collision latch device 8 is specifically described in the structure of the patent "Automatic Unlocking Latch Device for Anti-collision Equipment of Ship Lift" with patent application number "201520379526.5". The anti-collision latch device 8 is located in the sinkhole (d) of the zero-level deck (e) at the bow of the ship lift and needs to be inspected via this device (a). For ease of understanding, this application provides a brief description of the anti-collision latch device 8 here.

[0039] like Figure 3 , Figure 16-18 As shown, the anti-collision latch device 8 includes an upper fixing plate 801, a hook assembly 802, a lower fixing plate 803, a rope end fixing member 804, and a steel wire rope 805. The two sets of hook assemblies 802 and rope end fixing members 804 are respectively bolted between the upper fixing plate 802 and the lower fixing plate 803. The hook assembly 802 is reset by a spring, and one end of the steel wire rope 805 is fixedly connected to the rope end fixing member 804.

[0040] like Figure 1-3 As shown, a ship lift anti-collision latch maintenance device includes a support base assembly 3, which is fixed on the zero-level deck of the ship compartment above the anti-collision latch device 8. A horizontal moving mechanism 4 is installed on the upper end of the support base assembly 3. The horizontal moving mechanism 4 can drive the lifting mechanism 1 and the locking mechanism 2 on the support platform to move horizontally to the left or right. The lifting mechanism 1 can raise or lower the locking mechanism 2, and the locking mechanism 2 locks with the anti-collision latch device 8. A flipping mechanism 5 is installed on one side of the bottom of the support base assembly 3. The flipping mechanism 5 is used to rotate the anti-collision latch device 8 by 90 degrees for easy disassembly and maintenance. The hook clamping assembly 6 is arranged on both sides of the support base assembly 3 to facilitate the later compression of the anti-collision latch device 8 to unlock the locking mechanism 2. The wire rope fixing cone sleeve 7 is used to fix the wire rope and suspend the wire rope on this device to ensure stability.

[0041] Specifically, such as Figure 8 As shown, the lifting mechanism 1 consists of a top plate 101, a guide rod 102, a hoist 103, a linear bearing 104, and a base plate 105.

[0042] The lifting platform 103 is installed on the support platform 403 in the horizontal moving mechanism 4. The bottom of the lifting platform 103 is connected to the base plate 105, which can drive the base plate 105 to rise and fall. Two sets of linear bearings 104 are installed on the support platform 403, and guide rods 102 are mounted on the linear bearings 104. The lower end of the guide rod 102 is fixed to the base plate 105, and the upper end is fixed to the top plate 101.

[0043] During operation, the elevator 103 is driven by the handwheel to raise and lower the base plate 105. The guide rod 102 cooperates with the linear bearing 104 to guide and limit the movement.

[0044] like Figure 8-10 As shown, the locking mechanism 2 includes a first lead screw and nut assembly 201, a first connector 202, a bearing assembly 203, a connecting shaft 204, a locking pin 205, a locking block 206, and a locking nut 207.

[0045] The nut in the first lead screw and nut assembly 201 is mounted on the support platform 403, and the lower end of the lead screw shaft in the first lead screw and nut assembly 201 is connected to the bearing seat in the bearing assembly 203 through the first connector 202.

[0046] The connecting shaft 204 is slidably fitted with the center hole of the locking pin 205. One end of the connecting shaft 204 is assembled with the inner ring of the bearing in the bearing assembly 203, and the other end is fixedly connected to the locking block 206.

[0047] The locking pin 205 is mounted on the base plate 105 and fixed by the locking nut 207. The locking pin 205 has a through groove machined radially, and the locking block 206 is located in the through groove and can slide up and down along the through groove.

[0048] When the lifting platform 103 drives the base plate 105 to rise and fall, the locking pin 205 rises and falls synchronously. At this time, it is necessary to simultaneously operate the handwheel at the top of the first lead screw nut assembly 201 to rotate, so that the locking block 206 and the locking pin 205 do not have relative displacement. When it is necessary to lock or unlock the locking pin 205 with the anti-collision latch device 8, the handwheel of the first lead screw nut assembly 201 is operated alone, so that the locking block 206 moves downward relative to the locking pin 205 to the locked position or upward relative to the locking pin 205 to the unlocked position.

[0049] like Figure 7 As shown, the support assembly 3 consists of a bottom support 301, a side support 302, a top support 303, and a lifting lug 304.

[0050] The bottom support 301 is a hollow structure with spliced ​​plates in the middle, and it is fixed to the bolts on the deck of the ship. Two sets of side support seats 302 are symmetrically arranged above the bottom support 301. The side support seats 302 are machined with rectangular holes for easy operation and observation. Each side support seat 302 has two sets of U-shaped plates 305 and one U-shaped groove 306. The U-shaped plates 305 are used to place the hook clamping assembly 6 when not in operation, and the U-shaped groove 306 is used to install the hook clamping assembly 6 when in operation. Two lifting lugs 304 ( Figure 3 The middle one is located inside the side support seat 302, and the two sets of top support seats 303 are located on the top of the side support seat 302.

[0051] like Figure 7 As shown, the horizontal moving mechanism 4 includes a guide rail slider assembly 401, which is mounted on top of two sets of top support seats 303. The support platform 403 is located above the guide rail slider assembly 401 and can move horizontally along the guide rail. There are two lifting lugs 404 on the side plate of the support platform 403, and the two lifting lugs 404 are connected and tightened to the wire rope fixing cone sleeve 7 through a connector.

[0052] The bottom of the support platform 403 and both ends of the top support 303 are connected and driven by the second lead screw and nut assembly 402. Rotating the handwheel of the second lead screw and nut assembly 402 allows the support platform 403 to move horizontally left and right.

[0053] like Figure 12-14 As shown, the flipping mechanism 5 includes a motor 501, which is mounted on the support side plate 503 via a base. The support side plate 503 is fixedly connected to the support base plate 508 below. The support base plate 508 and the bottom support seat 301 cooperate via a guide rail slider and can move and lock relative to each other.

[0054] like Figure 12 As shown, a gear 502 is mounted on the output shaft of motor 501, and gear 502 meshes with gear 506. Gear 506 is bolted to one side of the inner ring of slewing support bearing 504, and a disc 505 is bolted to the other side of the inner ring of slewing support bearing 504. The outer ring of slewing support bearing 504 is bolted to the support side plate 503. When motor 501 drives gear 502 to rotate, gear 506 meshing with gear 502 and disc 505 will also rotate.

[0055] like Figure 2-4As shown, the central hole of the disc 505 is assembled with the nut in the third lead screw and nut assembly 507. One end of the lead screw shaft in the third lead screw and nut assembly 507 is connected to the outer ring of the bearing seat 519 through the second connector 518, and the inner ring of the bearing seat 519 is fixedly assembled with one end of the central shaft 517. In this way, the central shaft 517 can rotate relative to the lead screw shaft in the third lead screw and nut assembly 507. The central shaft 517 is provided with a shoulder, and the central hole of the sliding shaft 513 passes through the central shaft 517. One end of the sliding shaft 513 rests on the shoulder of the central shaft 517, and the other end is locked by the end cap 521 at the end of the central shaft 517, thereby axially positioning the sliding shaft 513. Two keyways are symmetrically machined on the sliding shaft 513, and a sliding key 516 is installed in the keyway. After the sliding sleeve 520 is assembled with the sliding shaft 513, the sliding shaft 513 can slide relative to the sliding sleeve 520 through the sliding key 516. Two L-shaped fixing plates 515 are symmetrically installed in the middle of the sliding sleeve 520. The L-shaped fixing plates 515 are fixed to one end of the support rod 514, and the other end of the support rod 514 is fixed to the disc 505.

[0056] like Figure 2 As shown, two connecting blocks 510 are installed on the upper and lower recessed platforms of the sliding sleeve 520, two connecting blocks 510 are installed on the upper and lower recessed platforms of the sliding shaft 513, and one connecting block 510 is installed on each of the two clamping plates 509 at opposite positions on their left sides, for a total of six. Additionally, one connecting block 512 is installed on each of the two clamping plates 509 at opposite positions on their right sides. The connecting blocks 510 have round holes, and the connecting blocks 512 have oblong holes. Two sets of double fork arms 511 are hinged to the connecting blocks 510 and 512 respectively via pins. When the sliding shaft 513 moves left and right relative to the sliding sleeve 520, the two sets of double fork arms 511 cause the two clamping plates 509 to open outwards or retract inwards.

[0057] Step 1: When the motor 501 is locked in place, operating the handwheel at one end of the lead screw shaft in the third lead screw nut assembly 507 causes the lead screw shaft in the third lead screw nut assembly 507 to rotate relative to the nut in the third lead screw nut assembly 507 and move to the left or right. This drives the central shaft 517 and the sliding shaft 513 on the central shaft 517 to move to the left or right. This causes the sliding shaft 513 to move closer to or further away from the sliding sleeve 520, thereby causing the two sets of double fork arms 511 to drive the two clamping plates 509 to unfold or retract. When the two clamping plates 509 unfold, they contact and press against the upper fixing plate 801 and the lower fixing plate 803 of the anti-collision latch device, respectively. When the two clamping plates 509 retract, they disengage from the upper fixing plate 801 and the lower fixing plate 803 of the anti-collision latch device, respectively.

[0058] The second step is to start the motor 501. The motor 501 drives the gear 1 502 to rotate, and the gear 2 506 meshing with the gear 1 502 rotates. The gear 2 506 drives the disc 505, the sliding sleeve 520, the sliding shaft 513, the central shaft 517 and the two sets of pressure plates 509 to rotate together. The two sets of pressure plates 509 then drive the anti-collision latch device to rotate 90° to the maintenance position.

[0059] like Figure 3 As shown, the hook clamping assembly 6 is a screw nut structure, wherein the nut end is provided with a limiting plate, which allows the hook clamping assembly 6 to be vertically placed on the two sets of U-shaped plates 305 when not in use. The outer wall of the nut is square or hexagonal. In use, the nut of the hook clamping assembly 6 is clamped in the U-shaped groove 306 of the side support 302 to restrict the circumferential rotation of the nut. Then the screw can be rotated, and the screw contacts the hook to achieve hook clamping.

[0060] like Figure 11 As shown, the wire rope fixing cone sleeve 7 is composed of a semi-circular cone sleeve 701, an arc wedge block 702, an adjusting bolt 703, a pin shaft 704, and a second lifting lug 705.

[0061] Two semi-conical sleeves 701 are hinged together by a pin 704, allowing them to be opened or closed. When closed, the semi-conical sleeves 701 are secured by a self-locking clamp (a general-purpose part, not shown in the figure). The inner hole of the semi-conical sleeve 701 is conical and has a guide groove machined along the axial direction. The bottom of the semi-conical sleeve 701 has a threaded hole. The arc wedge block 702 has a boss and a waist-shaped through hole. The boss of the arc wedge block 702 engages with the guide groove of the semi-conical sleeve 701 and slides relative to it for limiting and guiding. The adjusting bolt 703 passes through the waist-shaped through hole of the arc wedge block 702 and connects to the threaded hole at the bottom of the semi-conical sleeve 701. By tightening or loosening the adjusting bolt 703, the inner hole of the arc wedge block 702 is enlarged or reduced, thereby clamping or loosening the wire rope. The lifting lug 3 705 is connected to the lifting lug 2 404 on the support platform 403 via a small hand-operated hoist to tighten and fix the wire rope.

[0062] A method for overhauling the anti-collision latch of a ship lift includes the following steps: S1: Wire rope 805 is in the tensioned state, anti-collision latch device 8 is in the retracted and unlocked state, and the anti-collision truss (b) is raised to the position and locked under maintenance conditions (e.g., Figure 1 The anti-collision latch maintenance device (a) is installed on the zero deck directly above the anti-collision latch device 8 and fixedly connected by anchor bolts on the deck; S2: As Figure 3 As shown, the wire rope fixing cone sleeve 7 is installed near the end of the wire rope 805, and the adjusting bolt 703 located inside the wire rope fixing cone sleeve 7 is adjusted to clamp and fix the wire rope 805. S3: Rotate the handwheel in the horizontal moving mechanism 4 to move the support platform 403. When the locking pin 205 in the locking mechanism 2 located on the support platform 403 engages with the locking hole in the anti-collision latch device 8 ( Figure 16 (f) Stop after they are concentric; S4: Two small hand-operated hoists are used, with their hooks at both ends attached to the lifting lug 3 705 in the wire rope fixing cone sleeve 7 and the lifting lug 2 404 in the support platform 403, respectively. The hand-operated hoists are adjusted to be in a taut and stressed state. During maintenance operations, the wire rope 805 is in a released state. At this time, the end of the wire rope 805 has been completely fixed by the anti-collision latch maintenance device (a) to prevent the anti-collision latch device 8 from overturning and falling off the groove due to the weight of the wire rope itself after the wire rope 805 is released. S5: Simultaneously rotate the two handwheels located on the hoisting mechanism 1 and the locking mechanism 2 to insert the locking pin 205 into the locking hole of the anti-collision latch device 8, then stop rotating the handwheel in the hoisting mechanism 1. Continue rotating the handwheel in the locking mechanism 2 to move the locking block 206 down to the locking position, thereby locking the locking pin 205 with the hook assembly 802. Figure 18 As shown.

[0063] S6: Simultaneously rotate the two handwheels located in the lifting mechanism 1 and locking mechanism 2 to lift the anti-collision latch device 8 from the sinkhole under the ship's deck to a position more than 100mm above the deck height, ensuring that the anti-collision latch device 8 has sufficient overall tilting operation space; S7: Rotate the handwheel in the horizontal moving mechanism 4 to make the support platform 403 continue to move. When the anti-collision latch device 8 is moved to the maintenance position, manually push the flipping mechanism 5 to make the two sets of clamping plates 509 at the front end enter between the upper fixed plate 801 and the lower fixed plate 803. Rotate the handwheel in the flipping mechanism 5 to make the sliding shaft 513 slide with the relative sliding sleeve 520. The sliding shaft 513 drives the double fork arm 511 to move relative to each other, so that the two sets of clamping plates 509 are radially opened along the central axis 517, so that the two sets of clamping plates 509 contact and press against the upper fixed plate 801 and the lower fixed plate 803 respectively. S8: Alternately remove the hand-operated hoist hooks on the second lifting lug 404 near the support platform 403 and hang them on the two first lifting lugs 304 in the side support 302, so that the self-weight of the wire rope 805 is fixedly supported by the side support 302. S9: As Figure 15 As shown, the two sets of hook clamping components 6 are taken out from the U-shaped plate 305 on the side support 302 and installed in the U-shaped grooves 306 on both sides of the support. The length of the screw in the hook clamping component 6 is manually adjusted so that the front end of the screw presses against the hook component 802. The handwheel in the locking mechanism 2 is rotated to move the locking block 206 to the unlock position, thereby unlocking the locking pin 205 from the hook component 802. S10: Simultaneously rotate the two handwheels located on the lifting mechanism 1 and the locking mechanism 2 to disengage the locking pin 205 from the anti-collision latch device 8 as a whole, adjust the two sets of hook clamping components 6 to disengage from the hook assembly 802, and reinstall the hook clamping components 6 on the U-shaped plate of the side support seat 302. S11: Start motor 501 to drive the tilting mechanism 5 to rotate the anti-collision latch device 8 by 90° and then stop the machine. Use pads to fill the gap between the anti-collision latch device 8 and the ship deck. Rotate the handwheel in the horizontal moving mechanism 4 to move the support platform 403 to the initial position to ensure that the anti-collision latch device 8 has enough maintenance and operation space. S12: Alternately remove the connecting bolts between the upper fixing plate 801, the lower fixing plate 803 and the hook assembly 802 and the rope end fixing part 804 to disassemble and repair the hook assembly 802 and the rope end fixing part 804. During the repair, ensure that the relative positions of the upper fixing plate 801 and the lower fixing plate 803 remain unchanged and that they are always in contact with and pressed against the clamping plate 509. After the repair is completed, reverse the steps S11 to S1 and remove the machine anti-collision latch repair device.

Claims

1. A maintenance device for the anti-collision latch of a ship lift, characterized in that: The system includes a support base assembly (3), which is fixed above the anti-collision latch device (8). A horizontal moving mechanism (4) is installed on the support base assembly (3). The horizontal moving mechanism (4) drives the lifting mechanism (1) and the locking mechanism (2) to move horizontally as a whole. The lifting mechanism (1) drives the locking mechanism (2) to rise or fall. The locking mechanism (2) locks with the anti-collision latch device (8). A flipping mechanism (5) is installed on one side of the support base assembly (3). The flipping mechanism (5) drives the anti-collision latch device (8) to flip. A hook pressing assembly (6) is arranged on both sides of the support base assembly (3) to press the anti-collision latch device (8), so that the locking mechanism (2) is unlocked and disengaged from the anti-collision latch device (8). The support assembly (3) is a hollow structure with a central part made of spliced ​​plates, including a bottom support (301), which is fixed on the deck of the ship. Two sets of side support seats (302) are symmetrically arranged on the bottom support seat (301) at their lower ends and top support seats (303) are installed on their upper ends. Each side support seat (302) has a rectangular hole, and each side support seat (302) has a lifting lug (304) on its inner side and a U-shaped plate (305) and a U-shaped groove (306) on its outer side. The horizontal moving mechanism (4) includes a guide rail slider assembly (401), which is mounted on the top of two sets of top support seats (303). The support platform (403) slides left and right along the guide rail slider assembly (401) and is driven by the second lead screw nut assembly (402). The lifting mechanism (1) includes a lift (103), which is installed on a support platform (403). The output end of the lift (103) is connected to the bottom plate (105) below. The lower end of the guide rod (102) is fixed on the bottom plate (105), and the middle section is slidably engaged with the linear bearing (104) on the support platform (403). The locking mechanism (2) includes a first lead screw and nut assembly (201). The nut of the first lead screw and nut assembly (201) is mounted on the support platform (403). The lower end of the lead screw shaft of the first lead screw and nut assembly (201) is rotatably connected to the connecting shaft (204) through the bearing assembly (203). The connecting shaft (204) freely passes through the locking pin (205) and is fixedly connected to the locking block (206). The locking pin (205) is fixed on the base plate (105) and is provided with a through groove that slides up and down with the locking block (206).

2. The anti-collision latch maintenance device for a ship lift according to claim 1, characterized in that: The flipping mechanism (5) includes a base on which a disc (505) is rotatably mounted. One side of the disc (505) is connected to a drive device. The center of the disc (505) is connected to a nut in a third lead screw and nut assembly (507). One end of the lead screw shaft in the third lead screw and nut assembly (507) is rotatably connected to a central shaft (517). A sliding shaft (513) is mounted on the central shaft (517). A sliding sleeve (520) is slidably mounted on the sliding shaft (513). The other end of the sliding sleeve (520) is connected to the disc (505). At least two sets of double forks (511) are hinged on the sliding shaft (513) and the sliding sleeve (520). A pressure plate (509) is hinged to the outside of each set of double forks (511). When the sliding shaft (513) moves closer to or further away from the sliding sleeve (520), the multiple sets of pressure plates (509) open or close.

3. The anti-collision latch maintenance device for a ship lift according to claim 2, characterized in that: The drive device includes a motor (501) mounted on a base. A gear 1 (502) is mounted on the output shaft of the motor (501). Gear 1 (502) meshes with gear 2 (506). Gear 2 (506) and a disc (505) are respectively mounted on both sides of the inner ring of the slewing support bearing (504). The outer ring of the slewing support bearing (504) is mounted on the support side plate (503).

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