Supporting system for overhauling counterweight system of ship lift and installation and arrangement method

Abstract

The invention discloses a supporting system for overhauling a ship lift counterweight system and an installation and arrangement method. The supporting system comprises an overhauling bridge crane, an overhauling platform I, an overhauling platform II and a counterweight supporting device, the overhauling bridge crane is used for hoisting the counterweight supporting device; the overhauling platform is used for storing a pair of counterweight supporting devices; the second maintenance platform supports the balance weight supporting device. And the counterweight supporting device is used for supporting, fixing and weightlessness of the counterweight. According to the supporting system for overhauling the ship lift counterweight system and the installation and arrangement method, it is ensured that the counterweight supporting device is rapidly installed in place.

Description

Technical Field

[0001] The invention relates to the field of ship lift maintenance, in particular to a support system for maintenance of a ship lift counterweight system and an installation and arrangement method. Background Art

[0002] The counterweight system in a fully balanced vertical structure ship lift is an important device to ensure that the ship lift is in a balanced state. The counterweight system of the ship lift includes wire ropes and connecting components, pulley assemblies, counterweight regroups and guide devices, counterweight chains and guide devices, wherein the pulley assembly is arranged in the top machine room, and the ship holding compartment is suspended by multiple groups of wire ropes, which are symmetrically arranged on both sides of the ship holding compartment. The wire ropes pass around the pulley assembly and are connected to the counterweight regroup, which is located in the counterweight well.

[0003] The counterweight was not inspected and maintained in the early stage. During the installation and commissioning of the ship lift equipment, the cabin was in a non-water-filled and supported state. The pulley block and counterweight group were installed first and then the wire rope was installed. There was ample space for the arrangement of various lifting equipment and tooling, and the tooling was temporarily assembled on site. It was dismantled after the construction was completed to avoid affecting the normal operation of the ship lift.

[0004] In order to ensure the safe and stable operation of the counterweight system, it is necessary to carry out planned maintenance. Since the pulley block is always under stress, a series of issues need to be considered during the maintenance process, including the locking support of the ship compartment, the maintenance support of the counterweight group, and the lifting and transportation of the maintenance support device. Since the components in the counterweight system are installed compactly, the maintenance operation space is narrow (size 8600×4000×20000mm), and the maintenance process is complicated, making the maintenance of the counterweight system difficult. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a support system and installation layout method for maintenance of a ship lift counterweight system, which can realize the support, fixation and weightlessness of the counterweight, adapt to on-site operation requirements, improve maintenance efficiency and ensure operation safety.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: A support system for maintenance of a ship lift counterweight system, comprising a maintenance bridge crane, a first maintenance platform, a second maintenance platform and a counterweight support device; The said inspection bridge crane hoists the counterweight support device; The inspection platform stores a pair of counterweight support devices; The inspection platform is supported by two pairs of counterweight support devices; The counterweight support device supports the counterweight to be fixed and weightless.

[0007] The counterweight support device includes a frame support, multiple counterweight supports, a lifting device, anchor point one and anchor point two; the frame support and counterweight support are box-type solid web structures and are both provided with recesses and lifting ears, and multiple groups of counterweight supports are placed side by side between the two groups of frame supports; the lifting device is located in the recesses of the frame support and the counterweight support; the lifting device is divided into multiple groups for synchronously controlling the lifting; the anchor point one and anchor point two are respectively anchored on the walls on both sides of the counterweight well, and hand winches are installed on the anchor point one and anchor point two.

[0008] The counterweight comprises a counterweight frame and a counterweight block. A plurality of groups of upper buffer blocks and lower buffer blocks are arranged in the counterweight frame. The plurality of groups of counterweight blocks are placed between the upper buffer block and the lower buffer block of the counterweight frame.

[0009] A method for installing and arranging a support system for overhauling a ship lift counterweight system comprises the following steps: S1. Hoisting of the counterweight support device: The counterweight support device is initially located in the material storage area of ​​the maintenance platform 1. First, the ship carriage moves upward to the h1 elevation, so that the top elevation of the counterweight is lower than the elevation of the maintenance platform 2. Second, open the hoisting hole cover plate of the maintenance platform 1, use the maintenance bridge crane to hoist the frame support and the counterweight support to the oblique upper side of the maintenance platform 2, and adjust the position through the hand chain hoist at the anchor point, so that the frame support and the counterweight support are placed horizontally on the maintenance platform 2, and then the maintenance bridge crane withdraws from the hoisting hole; S2. Arrange the counterweight support device in place: the ship carriage descends to the elevation h2, so that the bottom elevation of the counterweight is higher than the elevation of the second maintenance platform, and the hand chain hoists on the anchor points 1 and 2 are adjusted to make the counterweight support device span the counterweight well, so that the counterweight support device is arranged in place. After it is in place, ensure that the top of the counterweight support device is more than 100mm away from the top of the counterweight; S3. Counterweight weight loss: First, operate the lifting device located in the frame support recess to make the counterweight frame weightless. Secondly, operate the lifting device located in the counterweight block support recess to make the counterweight block weightless. At this time, the wire rope remains in a natural drooping state due to its own weight.

[0010] The present invention provides a support system for maintenance of a ship lift counterweight system and an installation and arrangement method, which has the following technical effects: 1) The counterweight can be supported and lifted in a narrow space to ensure that the counterweight is in a weightless state and meet the conditions for the maintenance of the counterweight system.

[0011] 2) This method standardizes the maintenance operation of the counterweight system, realizes the hoisting arrangement of the counterweight support device, ensures that the counterweight support device is quickly installed in place, ensures the safety of the maintenance construction, and improves the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is the arrangement diagram of the present invention (the counterweight is at a low elevation).

[0013] Figure 2 It is a layout diagram of the present invention (the counterweight is at a high elevation).

[0014] Figure 3 It is a front view of the counterweight and the counterweight supporting device in the present invention.

[0015] Figure 4 It is a top view of the counterweight and the counterweight supporting device in the present invention.

[0016] Figure 5 It is a detailed view of the arrangement of the frame support in the present invention.

[0017] Figure 6 It is a detailed view of the arrangement of the counterweight support in the present invention.

[0018] Figure 7 This is the first lifting state of the counterweight support in the present invention.

[0019] Figure 8 This is the second lifting state of the counterweight support in the present invention.

[0020] Fig. 9 This is the third lifting state of the counterweight support in the present invention.

[0021] Fig.10 This is the first counterweight support installation arrangement state in the present invention.

[0022] Fig.11 This is the second counterweight support installation arrangement state in the present invention.

[0023] In the figure: maintenance bridge crane 1, pulley assembly 2, maintenance platform one 3, wire rope 4, maintenance platform two 5, ship supporting compartment 6, counterweight 7, counterweight supporting device 8, counterweight well 9, machine room on top of ship lift 10, counterweight frame 701, counterweight block 702, upper buffer block 703, lower buffer block 704, frame support 801, counterweight block support 802, jacking device 803, anchor point one 804, anchor point two 805. DETAILED DESCRIPTION

[0024] like Figure 1-2As shown, a support system for maintenance of a ship lift counterweight system includes a maintenance bridge crane 1, a pulley assembly 2, a maintenance platform 1 3, a wire rope 4, a maintenance platform 2 5, a ship support box 6, a counterweight 7 and a counterweight support device 8. Every two wire ropes 4 pass through a pulley assembly 2, one end of the wire rope 4 is connected to the ship support box 6, and the other end is connected to the counterweight 7. The counterweight support device 8 is initially placed on the maintenance platform 1 3, and is installed and arranged on the maintenance platform 2 5 after being transported and hoisted by the maintenance bridge crane 1, and is used for supporting, fixing and weightlessness of the counterweight 7.

[0025] like Figure 3-6 As shown, the counterweight 7 includes a counterweight frame 701 and a counterweight block 702, a plurality of groups of upper buffer blocks 703 and lower buffer blocks 704 are arranged in the counterweight frame 701, the plurality of groups of counterweight blocks 702 are placed between the upper buffer blocks 703 and the lower buffer blocks 704 of the counterweight frame 701, and the counterweight 7 is restricted to move up and down in the counterweight well 9.

[0026] Multiple groups of counterweights 702 are placed vertically side by side in the counterweight frame 701, multiple groups of upper buffer blocks 703 are fixed to the lower end surface of the upper beam in the counterweight frame 701 by bolts, and multiple groups of lower buffer blocks 704 are fixed to the upper end surface of the lower beam in the counterweight frame 701 by bolts. When the counterweight 702 and the counterweight frame 701 are relatively displaced in the vertical direction, the counterweight 702 contacts the upper buffer block 703 or the lower buffer block 704 and transmits the force to the counterweight frame 701. The upper buffer block 703 or the lower buffer block 704 limits and caches the counterweight 702.

[0027] like Figure 3-6 As shown, the counterweight support device 8 includes a frame support 801, a plurality of counterweight supports 802, a lifting device 803, an anchor point 1 804 and an anchor point 2 805. The frame support 801 and the counterweight support 802 are box-type solid web structures and both have concave platforms and lifting ears. Multiple groups of counterweight supports 802 are placed side by side between the two groups of frame supports 801.

[0028] like Figure 3-6 As shown, the lifting device 803 is located in the recessed platform of the frame support 801 and the counterweight support 802; the anchor point 1 804 is anchored on the wall on one side of the counterweight well, and the anchor point 2 805 is anchored on the wall on the other side of the counterweight well, and hand winches are installed on the anchor point 1 804 and the anchor point 2 805.

[0029] The lifting device 803 is a jack with mechanical self-locking, which can control the lifting and lowering of multiple groups synchronously.

[0030] like Figure 7-9As shown, the ship-carrying compartment 6 moves upward to the elevation h1, so that the top elevation of the counterweight 7 is lower than the elevation of the maintenance platform 2 5, ensuring that the counterweight 7 does not occupy the hanging hole space between the maintenance platform 1 3 and the maintenance platform 2 5; the frame support 801 and the counterweight support 802 are respectively hoisted to the oblique upper side of the maintenance platform 2 5 by the maintenance bridge crane 1 and the position is adjusted by the hand winch at the anchor point 1 804, and the frame support 801 and the counterweight support 802 are finally placed horizontally on the maintenance platform 2 5.

[0031] Due to limited space, the counterweight support 802 and the frame support 801 are hoisted separately, and both are transferred and moved through the anchor point 1 804 and the anchor point 2 805. The anchor point 1 804 and the anchor point 2 805 can slide and be fixed along the horizontal track respectively. The frame support and the multiple sets of counterweight support are placed side by side to ensure that the frame support and the counterweight support are located directly below the counterweight frame and the counterweight respectively.

[0032] like Figure 10-11 As shown, the ship-bearing compartment 6 descends to the elevation h2, so that the bottom elevation of the counterweight 7 is higher than the elevation of the maintenance platform 2 5, and the counterweight supporting device 8 does not interfere with the bottom of the counterweight 7 when it spans across the counterweight well. The hand hoists on the anchor point 1 804 and the anchor point 2 805 are respectively connected to the lifting ears at the front and rear ends of the counterweight supporting device 8, and the hand hoists are adjusted to make the counterweight supporting device 8 span the counterweight well.

[0033] A method for installing and arranging a support system for overhauling a ship lift counterweight system comprises the following steps: S1. Hoisting of the counterweight support device: The counterweight support device 8 is located in the material storage area of ​​the maintenance platform 1 3. First, the ship carriage 6 is moved upward to the elevation h1, so that the top elevation of the counterweight 7 is lower than the elevation of the maintenance platform 2 5. Secondly, the hoisting hole cover at the maintenance platform 1 3 is opened, and the frame support 801 and the counterweight support 802 are hoisted to the oblique upper side of the maintenance platform 2 805 by the maintenance bridge crane 1, and the positions are adjusted by the hand chain hoist at the anchor point 1 804, so that the frame support 801 and the counterweight support 802 are placed horizontally on the maintenance platform 2 5, and then the maintenance bridge crane 1 withdraws from the hoisting hole; S2. The counterweight support device is arranged in place: the ship carriage 6 descends to the elevation h2, so that the bottom elevation of the counterweight 7 is higher than the elevation of the maintenance platform 2 5, and the hand chain hoists on the anchor point 1 804 and the anchor point 2 805 are adjusted to make the counterweight support device 8 span the counterweight well, so that the counterweight support device 8 is arranged in place. After being in place, ensure that the top of the counterweight support device 8 is greater than 100mm away from the top of the counterweight 7; S3. Counterweight weight loss: Firstly, operate the lifting device 803 located in the recessed platform of the frame support 801 to make the counterweight frame 701 weightless. Secondly, operate the lifting device 803 located in the recessed platform of the counterweight block support 802 to make the counterweight block 702 weightless. At this time, the steel wire rope 4 keeps hanging naturally due to its own weight. The weightlessness mentioned here means that the weight is changed from being borne by the original steel wire rope to being borne by the support, and the steel wire rope does not generate tension.

[0034] When the counterweight frame 701 loses weight, the counterweight block 702 does not lose weight. The counterweight frame 701 only limits the counterweight block 702 and can bear part of the weight under extreme working conditions. The weight of the counterweight block 702 is mainly carried by the wire rope, fixed pulley and cabin. When the counterweight block 702 and the counterweight frame 701 are relatively displaced in the vertical direction, the counterweight block 702 contacts the upper buffer block 703 or the lower buffer block 704 and transmits part of the force to the counterweight frame 701. The two operations of extending the jacking device 23 are to first ensure that the counterweight frame 701 loses weight, ensure that the counterweight block 702 is separated from the upper buffer block 703 and the lower buffer block 704, and then operate the jacking device 23 located in the concave platform of the counterweight support 22 to make the counterweight block 702 lose weight. The oil cylinder of the jacking device 23 is retracted in the initial state.

[0035] The reasons for not performing weightlessness at the same time: 1) Synchronous control of the lifting and lowering of all jacking devices requires high system control, and the synchronization accuracy cannot be guaranteed. Operating two groups separately is simple and reliable; 2) Performing weightlessness of the counterweight frame first and then the counterweight block can ensure that the upper buffer block is not subjected to force and protect the buffer block (the upper buffer block has been squeezed in the initial installation state. If the counterweight block is weightless first, the degree of squeezing of the upper buffer block will be aggravated).

Claims

1. A support system for maintenance of a ship lift counterweight system, characterized in that: It comprises a maintenance bridge crane (1), a maintenance platform 1 (3), a maintenance platform 2 (5) and a counterweight support device (8); The maintenance bridge crane (1) lifts the counterweight support device (8); The inspection platform (3) is used to store a pair of counterweight support devices (8); The second maintenance platform (5) supports the counterweight support device (8); The counterweight support device (8) supports and fixes the counterweight (7) and makes it weightless.

2. A support system for maintenance of a ship lift counterweight system according to claim 1, characterized in that: The counterweight support device (8) comprises a frame support (801), a plurality of counterweight supports (802), a lifting device (803), an anchor point one (804) and an anchor point two (805); the frame support (801) and the counterweight support (802) are box-type solid web structures and are both provided with a concave platform and a lifting lug, and a plurality of counterweight supports (802) are placed side by side between the two sets of frame supports (801); The lifting device (803) is located in the recessed platform of the frame support (801) and the counterweight support (802); the lifting device (803) is divided into multiple groups to synchronously control the lifting; The anchor point one (804) and the anchor point two (805) are respectively anchored on the walls on both sides of the counterweight well, and hand winches are installed on the anchor point one (804) and the anchor point two (805).

3. A support system for maintenance of a ship lift counterweight system according to claim 1, characterized in that: The counterweight (7) comprises a counterweight frame (701) and a counterweight block (702); a plurality of groups of upper buffer blocks (703) and lower buffer blocks (704) are arranged in the counterweight frame (701); and the plurality of groups of counterweight blocks (702) are placed between the upper buffer blocks (703) and the lower buffer blocks (704) of the counterweight frame (701).

4. A method for installing and arranging a counterweight support device using a support system for maintenance of a ship lift counterweight system according to any one of claims 1 to 3, comprising the following steps: S1. Hoisting of the counterweight support device: The counterweight support device (8) is initially located in the material storage area of ​​the maintenance platform one (3); first, the ship carriage (6) is moved upward to the elevation h1, so that the top elevation of the counterweight (7) is lower than the elevation of the maintenance platform two (5); second, the hoisting hole cover plate at the maintenance platform one (3) is opened, and the frame support (801) and the counterweight support (802) are hoisted to the oblique upper side of the maintenance platform two (805) by the maintenance bridge crane (1), and the position is adjusted by the hand winch at the anchor point one (804), so that the frame support (801) and the counterweight support (802) are horizontally placed on the maintenance platform two (5), and then the maintenance bridge crane (1) is withdrawn from the hoisting hole; S2. The counterweight support device is arranged in place: the ship carriage (6) is lowered to the elevation h2, so that the bottom elevation of the counterweight (7) is higher than the elevation of the second maintenance platform (5), and the hand chain hoists on the first anchor point (804) and the second anchor point (805) are adjusted so that the counterweight support device (8) spans the counterweight well, so that the counterweight support device (8) is arranged in place. After the counterweight support device (8) is in place, it is ensured that the top of the counterweight support device (8) is more than 100 mm away from the top of the counterweight (7); S3, counterweight weight loss: firstly, the lifting device (803) located in the concave platform of the frame support (801) is operated to make the counterweight frame (701) weightless, and then the lifting device (803) located in the concave platform of the counterweight block support (802) is operated to make the counterweight block (702) weightless. At this time, the steel wire rope (4) remains in a naturally drooping state due to its own weight.

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