Anchoring chain sliding base

Abstract

The application discloses an anchor chain sliding base frame, which comprises an anchor chain sliding arc plate for slidingly supporting an anchor chain and a press wheel rotatable to press the anchor chain on the anchor chain sliding arc plate. The anchor chain is wound around the press wheel, and the press wheel is used as a force receiving point during clockwise pulling and tensioning of the anchor chain. After the pulling and tensioning of the anchor chain is completed, the press wheel is rotated counterclockwise to press the anchor chain on the anchor chain sliding arc plate, so that the anchor chain is pressed and locked, and the problem that the existing technology cannot press and lock the anchor chain is solved.

Description

Technical Field

[0001] This utility model relates to an anchor chain sliding base frame, belonging to the technical field of anchor chain tensioning equipment. Background Technology

[0002] The foundation of an offshore floating wind turbine is typically anchored to the seabed via a mooring system. During the installation of the mooring system, the tension of each mooring chain needs to be adjusted using an anchor chain tensioner to achieve the designed preload, in order to ensure the reliability of the system operation.

[0003] Existing anchor chain tensioner technology, as described in Chinese Patent Publication No. CN210139943U, involves pulling the anchor chain around a grooved pulley to achieve tension, which is then locked by a chain stop arm. Although the grooved pulley provides a force point for the clockwise tensioning process of the anchor chain, it cannot achieve the function of pressing and locking the anchor chain. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides an anchor chain sliding base frame.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides an anchor chain sliding base frame, comprising: Anchor chain sliding arc plate used for sliding support of anchor chains; A rotating pressure roller that presses the anchor chain against the sliding arc plate of the anchor chain.

[0007] It also includes the base plate; The anchor chain sliding arc plate is fixed to the base plate by the anchor chain sliding vertical plate; The pressure wheel connecting ear is fixed to the base plate by the upright plate. The pressure wheel connecting ear is higher than the sliding arc plate of the anchor chain. The pressure wheel connecting ear is provided with a pressure wheel rotation eye. The pressure wheel can be rotatably installed at the pressure wheel rotation eye of the pressure wheel connecting ear through the first rotation shaft.

[0008] The base plate is a thick steel plate.

[0009] The base plate is fixedly installed with baffles around its perimeter, and the baffles are tilted outward at a certain angle.

[0010] The upright plates are A upright plates and B upright plates arranged in parallel to each other; the pressure roller connecting ears are A pressure roller connecting ears and B pressure roller connecting ears distributed in parallel at intervals.

[0011] The pressure roller connecting lug is tilted to the right.

[0012] A cover plate is fixed above the upright plate on the right side of the pressure roller connecting ear, and the cover plate is fixedly connected to the upright plate and the pressure roller connecting ear.

[0013] A vertical plate is fixed to the inner side of the upright plate on the left side of the pressure roller connecting ear. An anchor chain connecting block is fixedly connected to the vertical plate through a reinforcing connecting plate. The anchor chain connecting block is reinforcedly connected to the left end of the upright plate through the vertical plate and the reinforcing connecting plate.

[0014] The beneficial effects of this utility model are as follows: the anchor chain wraps around the pressure wheel, and the pressure wheel is the force point during the clockwise tensioning process of the anchor chain; after the anchor chain is tensioned, the pressure wheel rotates counterclockwise and presses the anchor chain onto the anchor chain sliding arc plate, thereby achieving anchor chain clamping and locking, which solves the problem that grooved pulleys in the prior art cannot achieve anchor chain clamping and locking. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model from a left front top view; Figure 3 This is a front sectional view of the present invention without anchor chain locking; Figure 4 This is a front sectional view of the anchor chain locking mechanism of this utility model; Figure 5 This is a top-down view of the structure of this utility model from the right front; Figure 6 This is a top view of the structure of this utility model; Figure 7 yes Figure 6 A cross-sectional view along line AA; Figure 8 yes Figure 6 A cross-sectional view along line BB; Figure 9 This is a schematic diagram showing the distribution structure of the pressure roller, tensioning lifting roller, traction plate and lower locking hook of this utility model; Figure 10 This is a schematic diagram of the tensioning and lifting wheel of this utility model; Figure 11 This is a schematic diagram of the structure of the traction plate of this utility model; Figure 12 This is a schematic diagram of the structure of the traction shaft of this utility model; Figure 13 This is a schematic diagram of the structure of the pressure roller of this utility model; Figure 14 This is a front view schematic diagram of the pressure roller of this utility model; Figure 15 This is a top view of the pressure roller of this utility model; Figure 16 This is a schematic diagram of the structure of the lower locking hook of this utility model; Figure label: 11-Base plate; 12-Baffle; 13-Upright plate; 131-Upright plate A; 132-Upright plate B; 14-Rotating shaft hole; 15-Sliding hole; 16-Pressure roller connecting ear; 161-Pressure roller connecting ear A; 162-Pressure roller connecting ear B; 17-Pressure roller rotating eye; 18-Cover plate; 19-Vertical plate; 110-U-shaped opening; 111-Anchor chain connecting block; 1121-Anchor chain sliding vertical plate; 1122-Anchor chain sliding arc plate; 1123-Hook tongue hole; 113-Gap groove; 114-Reinforcing connecting plate; 115-First rotating shaft; 116-Second rotating shaft; 2-Tensioning lifting wheel; 21-Tensioning lifting block; 22-Tensioning lifting rotating hole; 23-Operating handle; 24-Cable mounting hole; 31-Traction plate; 3111-A traction connecting plate; 3112-B traction connecting plate; 312-Shaft hole; 32-Traction shaft; 321-First traction shaft; 322-Second traction shaft; 41-Pressure roller; 411-Pressure roller A; 412-Pressure roller B; 42-Traction hole; 43-Rotation hole; 44-Structural hole; 45-Connecting block; 5-Lower locking hook; 51-Locking hook plate; 511-A locking hook plate; 512-B locking hook plate; 52-Locking hook shaft hole; 53-Hook tongue; 54-Bayonet; 6-Anchor chain. Detailed Implementation

[0016] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0017] See Figures 1 to 16 .

[0018] This application discloses an underwater anchor chain tensioner, comprising: A base frame is provided for installation, and the base frame has a sliding arc plate 1122 for anchor chains in a fixed state; A pressure roller 41 is rotatably mounted on the base frame. The pressure roller 41 rotates counterclockwise downwards and moves against the anchor chain sliding arc plate 1122 to press and lock the anchor chain 6.

[0019] A lower locking hook 5 is installed on the base frame. The lower locking hook 5 is rotatably installed on the base frame. The lower locking hook 5 rotates counterclockwise upward to extend into the anchor chain 6 for locking.

[0020] If either the lower locking hook 5 or the pressure roller 41 fails and the locking mechanism fails, the other can still lock the anchor chain 6, ensuring the reliability of the anchor chain tensioner in maintaining the tension of the anchor chain 6. At the same time, when both the lower locking hook 5 and the pressure roller 41 provide locking, the retraction force of the anchor chain 6 is dispersed, reducing the probability of failure of the two locking mechanisms. This solves the problem that the anchor chain tensioner has poor reliability in maintaining the tension of the anchor chain when only the chain stop arm is locking.

[0021] The present application of an underwater anchor chain tensioner includes: an anchor chain 6 passing through the underwater anchor chain tensioner guided by an anchor chain sliding arc plate 1122; the anchor chain 6 being located in the space between below the pressure roller 41 and above the anchor chain sliding arc plate 1122; the pressure roller 41 rotating counterclockwise downwards to press and lock the anchor chain 6 against the anchor chain sliding arc plate 1122; and the lower locking hook 5 rotating counterclockwise upwards to extend into the anchor chain 6 for locking, thereby achieving the application process in which the anchor chain 6 is simultaneously locked by both the lower locking hook 5 and the pressure roller 41.

[0022] The base frame includes a base plate 11, a baffle 12, a vertical plate 13, a rotating shaft hole 14, a sliding hole 15, a pressure roller connecting ear 16, a pressure roller rotating eye 17, a cover plate 18, a vertical plate 19, a U-shaped opening 110, an anchor chain connecting block 111, an anchor chain sliding structure, a spacer groove 113, a reinforcing connecting plate 114, a first rotating shaft 115, and a second rotating shaft 116.

[0023] The base plate 11 is a thick steel plate, and baffles 12 are fixedly installed around the base plate 11. The baffles 12 are inclined at a certain angle outward from the base plate 11 to prevent mud and sand from entering the base plate 11.

[0024] A vertical plate 13 is fixedly installed in the middle of the base plate 11. There are two vertical plates 13 arranged in parallel to each other. The vertical plates 13 are divided into vertical plate A 131 and vertical plate B 132. The vertical plates 13 have a rotating shaft hole 14, a sliding hole 15 and a U-shaped opening 110. The rotating shaft hole 14 is circular, the sliding hole 15 is elongated, and the U-shaped opening 110 is U-shaped.

[0025] A pressure roller connecting ear 16 is fixed at the middle position above the upright plate 13, and the pressure roller connecting ear 16 is tilted to the right. A circular pressure roller rotating eye 17 is provided on the pressure roller connecting ear 16. The pressure roller connecting ear 16 includes parallel and spaced pressure roller connecting ears A 161 and B 162. The pressure roller 41 is rotatably mounted at the pressure roller rotating eye 17 of the pressure roller connecting ear 16 via a first rotating shaft 115.

[0026] A cover plate 18 is fixed above the upright plate 13 on the right side of the pressure roller connecting ear 16. The cover plate 18 is fixedly connected to the upright plate 13 and the pressure roller connecting ear 16 respectively.

[0027] A vertical plate 19 is fixed to the inner side of the upright plate 13 on the left side of the pressure roller connecting ear 16. An anchor chain connecting block 111 is fixedly connected to the vertical plate 19 through a reinforcing connecting plate 114. The anchor chain connecting block 111 has a circular hole on the left side for connecting another anchor chain 6. The anchor chain connecting block 111 is reinforcedly connected to the left end of the upright plate 13 through the vertical plate 19, the reinforcing connecting plate 114, and the vertical plate 19.

[0028] An anchor chain sliding structure is fixed to the inner right end of the upright plate 13 on the upper surface of the base plate 11. The anchor chain sliding structure includes an anchor chain sliding vertical plate 1121 and an anchor chain sliding arc plate 1122. The anchor chain sliding vertical plate 1121 and the anchor chain sliding arc plate 1122 are fixedly connected perpendicularly to each other in the middle to form a T-shaped structure. The anchor chain sliding vertical plate 1121 between the anchor chain sliding structures forms a gap groove 113. The width of the gap groove 113 is smaller than the diameter of the anchor chain 6, so as not to cause the anchor chain 6 to get stuck. The anchor chain sliding arc plate 1122 is provided with a hook tongue hole 1123 in the middle. The anchor chain sliding vertical plate 1121 is fixedly connected to the base plate 11, and the anchor chain sliding arc plate 1122 is fixedly connected to the upright plate 13. The lower locking hook 5 is rotatably installed on the anchor chain sliding vertical plate 1121. The lower locking hook 5 rotates counterclockwise upward, passes through the hook tongue hole 1123, and extends into the anchor chain 6 to lock.

[0029] The anchor chain wraps around the pressure roller 41. During the clockwise tensioning process, the pressure roller 41 is the force point. The gap between the pressure roller 41 and the anchor chain sliding arc plate 1122 is greater than that between the anchor chain 6 and the pressure roller 41. After the anchor chain 6 is tensioned, the pressure roller 41 rotates counterclockwise downwards to press the anchor chain 6 onto the anchor chain sliding arc plate 1122, thereby achieving the clamping and locking of the anchor chain 6. This solves the problem that grooved pulleys in the prior art cannot achieve the clamping and locking of the anchor chain.

[0030] The anchor chain sliding vertical plate 1121 and the vertical plate 13 are both provided with a rotating shaft hole 14 and a sliding hole 15 at the same position.

[0031] The pressure roller 41 is composed of a pressure roller A 411 and a pressure roller B 412 that are parallel to each other and spaced apart. The inner sides of the pressure roller A 411 and the pressure roller B 412 are fixedly connected by a connecting block 45. The pressure roller 41 is provided with a circular traction hole 42, a rotating hole 43 and an irregular structural hole 44. The rotating hole 43 passes through the connecting block 45, and the first rotating shaft 115 passes through the rotating hole 43 and can rotate at the pressure roller rotating eye 17 of the pressure roller connecting ear 16.

[0032] The end of the pressure roller 41 at the construction hole 44 is elliptical, and the elliptical end increases the contact surface with the anchor chain 6.

[0033] In order to achieve the clamping and locking of the anchor chain 6, in the prior art of Chinese patent publication number CN210139943U, the grooved pulley is circular, and the contact point between the circular pulley and the anchor chain 6 is small, making it difficult to apply clamping force to the anchor chain 6.

[0034] The end of the pressure roller 41 at the structural hole 44 of this application is elliptical, which increases the contact surface with the anchor chain 6. The elliptical end of the pressure roller 41 at the structural hole 44 can press the anchor chain 6 onto the anchor chain sliding vertical plate 1121 for pressing and locking, ensuring that the pressure roller 41 applies a pressing force to the anchor chain 6. This solves the problem that the contact surface between the circular grooved pulley and the anchor chain 6 is small, making it difficult to apply a pressing force to achieve pressing and locking.

[0035] The lower locking hook 5 consists of two parallel and spaced locking hook plates, A hook plate 511 and B hook plate 512. The lower locking hook 5 includes a locking hook plate 51, a locking hook shaft hole 52, a hook tongue 53, and an arc-shaped latch 54. One end of the locking hook plate 51 is provided with a circular locking hook shaft hole 52, and the other end is provided with an arc-shaped latch 54. The upper part of the locking hook plate 51 at the arc-shaped latch 54 is provided with a protruding hook tongue 53. The circular locking hook shaft hole 52 of the locking hook plate 51 can be rotatably installed with the upright plate 13 of the base frame and the anchor chain sliding vertical plate 1121 through the second rotating shaft 116. The hook tongue 53 of the locking hook plate 51 extends through the hook tongue hole 1123 and enters the anchor chain 6 to lock.

[0036] In the prior art of Chinese patent publication number CN210139943U, the chain stop arm is rotated by the operating arm, which can make the chain stop arm extend into the anchor chain to achieve locking. However, the end of the chain stop arm that extends into the anchor chain is a suspended end, which is prone to swinging.

[0037] The lower locking hook 5 of this application has an arc-shaped latch 54 on the locking hook plate 51. The arc-shaped latch 54 slides relative to the anchor chain sliding arc plate 1122 at the hook tongue hole 1123. During the process of the locking hook plate 51 rotating and the hook tongue 53 extending into the anchor chain 6 for locking, the arc-shaped latch 54 slides relative to the anchor chain sliding arc plate 1122, so that both ends of the locking hook plate 51 are supported, avoiding the end of the locking hook plate 51 far from the second rotation axis 116 from being suspended. This solves the problem that the end of the chain stop arm extending into the anchor chain is a suspended end that is prone to swinging.

[0038] In the prior art of Chinese patent publication number CN210139943U, only one type of locking can be achieved by engaging the chain arm. However, by using the pressure roller 41 to press and lock and the lower locking hook 5 to engage and lock, two types of locking can be achieved simultaneously. However, the synchronization of manually controlling the pressure roller 41 to rotate counterclockwise downward and the lower locking hook 5 to rotate counterclockwise upward is poor.

[0039] The pressure roller 41 is equipped with a tensioning lifting roller 2, which is connected to a lower locking hook 5 via a traction plate 31. The pressure roller 41, tensioning lifting roller 2, traction plate 31, and lower locking hook 5 constitute an anchor chain locking linkage device. Applying force to the tensioning lifting roller 2 causes the pressure roller 41 and lower locking hook 5 to rotate synchronously counterclockwise or clockwise through the drive of the tensioning lifting roller 2 and traction plate 31. For example, when the operating handle 23 is pushed to rotate counterclockwise or clockwise, the tensioning lifting block 21 rotates synchronously with the first traction shaft 321, and the first traction shaft 321, along with the traction plate 31, rotates synchronously with the pressure roller 41 counterclockwise or clockwise.

[0040] In the prior art of Chinese patent publication number CN210139943U, the operating arm maintains the state of the chain stop arm by installing a torsion spring. When the chain stop arm needs to be disengaged from the anchor chain, the dynamic damping force of the torsion spring prevents the operating arm from completely disengaging from the anchor chain along with the chain stop arm.

[0041] The tensioning lifting wheel 2 includes a tensioning lifting block 21, a tensioning lifting rotating hole 22, an operating handle 23, and a cable hole 24. The tensioning lifting block 21 and the operating handle 23 are integrally fixed. The cable hole 24 on the operating handle 23 is used to connect with the wire rope to pull the operating handle 23. The tensioning lifting rotating hole 22 of the tensioning lifting block 21 is rotatably hinged to the traction hole 42 of the pressure wheel 41 through the first traction shaft 321. The tensioning lifting block 21 is an eccentric body, and the center of the tensioning lifting block 21 is eccentric relative to the center of the tensioning lifting rotating hole 22.

[0042] After the tension lifting block 21 disengages from the cover plate 18, the eccentric body of the tension lifting block 21 is pulled downward by its own gravity to keep the pressure roller 41, the lower locking hook 5 and the anchor chain 6 out of contact. This solves the problem that when the torsion spring is used in the prior art, the dynamic damping force of the torsion spring causes the operating arm to be unable to completely disengage from the anchor chain with the chain stop arm.

[0043] The traction plate 31 consists of two parallel and spaced-apart traction connecting plates A 3111 and B traction connecting plate 3112. Each traction plate 31 includes a traction connecting plate 311 and shaft holes 312 at both ends. One shaft hole 312 of the traction plate 31 is rotatably hinged to the tensioning lifting rotating hole 22 of the tensioning lifting block 21 via a first traction shaft 321. The other shaft hole 312 of the traction plate 31 is press-fitted with a second traction shaft 322 via the first traction shaft 321. The second traction shaft 322 is press-fitted onto both ends of the A traction connecting plate 3111 and the B traction connecting plate 3112. The middle of the second traction shaft 322 contacts the bottom edge of the locking hook plate 51. The second traction shaft 322 can move upwards through the sliding hole 15. When the tensioning lifting block 21 rotates counterclockwise, it pulls the traction plate 31 and the second traction shaft 322 upward. The second traction shaft 322 slides upward in the sliding hole 15, lifting the locking hook plate 51. The lower locking hook 5 rotates counterclockwise upward and extends into the anchor chain 6 to lock it in place. At the same time, the pressure wheel 41 rotates counterclockwise downward and moves towards the anchor chain sliding arc plate 1122 to press and lock the anchor chain 6. When the tensioning lifting block 21 rotates clockwise, it pushes the traction plate 31 and the second traction shaft 322 downward. The second traction shaft 322 slides downward in the sliding hole 15, pushing the locking hook plate 51 downward. The lower locking hook 5 rotates clockwise downward and disengages from the anchor chain 6. At the same time, the pressure wheel 41 rotates clockwise upward and moves away from the anchor chain sliding arc plate 1122, no longer pressing and locking the anchor chain 6.

[0044] The first traction shaft 321 passes through the traction plate 31, the pressure roller 41, and the tensioning lifting block 21.

[0045] The second traction shaft 322 passes through the connecting plate 31 and the anchor chain sliding vertical plate 1121.

[0046] The first rotating shaft 115 passes through the pressure roller connecting lug 16 and the pressure roller 41.

[0047] The second rotating shaft 116 passes through the vertical plate 13 and the locking hook plate 51.

[0048] The first traction shaft 321, the second traction shaft 322, the first rotating shaft 115, and the second rotating shaft 116 are all provided with anti-detachment pins at both ends to prevent them from sliding out of the corresponding holes.

[0049] Working principle: When in use, place this device on the seabed or in a suitable location. The anchor chain 6 is positioned between the pressure roller 41 and the anchor chain sliding arc plate 1122. The anchor chain connecting block 111 connects to another anchor chain 6. The cable hole 24 of the operating handle 23 is connected to the wire rope of the construction vessel. When the operating handle 23 and the tensioning lifting block 21 rotate counterclockwise around the first traction shaft 321, the tensioning lifting block 21 presses against the cover plate 18 of the base frame, which drives the traction plate 31 and the second traction shaft 322 upward. The linkage pressure wheel 41 rotates counterclockwise around the first rotating shaft 115 and presses the anchor chain 6. At the same time, the locking hook plate 51 slides upward around the second rotating shaft 116, that is, the second traction shaft 322 slides upward in the sliding hole 15, which drives the locking hook plate 51 to rotate counterclockwise around the second rotating shaft 116. At this time, the hook tongue 53 reaches above the anchor chain sliding arc plate 1122 through the hook tongue hole 1123 and locks the anchor chain 6 with the bayonet 54, so that the anchor chain inside the tensioner stops. When the wire rope is pulled to loosen or loosen, causing the operating handle 23 and the tensioning lifting block 21 to rotate clockwise, the tensioning lifting block 21 disengages from the cover plate 18 of the base frame, pushing the traction connecting plate 311 downward. The linkage pressure wheel 41 rotates clockwise around the first rotating shaft 115, and the lower locking hook 5 rotates clockwise around the second rotating shaft 116. At this time, the anchor chain 6 inside the tensioner can slide.

Claims

1. An anchor chain sliding base frame, characterized in that, include: An anchor chain sliding arc plate (1122) for sliding support of anchor chain (6); A pressure roller (41) that can rotate to press the anchor chain (6) against the anchor chain sliding arc plate (1122).

2. The anchor chain sliding base frame as described in claim 1, characterized in that: It also includes the base plate (11); The anchor chain sliding arc plate (1122) is fixed to the base plate (11) by the anchor chain sliding vertical plate (1121); The pressure wheel connecting ear (16) is fixed to the base plate (11) by the upright plate (13). The pressure wheel connecting ear (16) is higher than the anchor chain sliding arc plate (1122). The pressure wheel connecting ear (16) is provided with a pressure wheel rotating eye (17). The pressure wheel (41) can be rotatably installed at the pressure wheel rotating eye (17) of the pressure wheel connecting ear (16) through the first rotating shaft (115).

3. The anchor chain sliding base frame as described in claim 2, characterized in that: The base plate (11) is a thick steel plate.

4. The anchor chain sliding base frame as described in claim 2, characterized in that: A baffle (12) is fixedly installed around the base plate (11), and the baffle (12) is tilted at a certain angle outward from the base plate (11).

5. The anchor chain sliding base frame as described in claim 2, characterized in that: The upright plate (13) consists of an A upright plate (131) and a B upright plate (132) arranged in parallel to each other; the pressure roller connecting ears (16) consist of an A pressure roller connecting ear (161) and a B pressure roller connecting ear (162) arranged in parallel at intervals.

6. The anchor chain sliding base frame as described in claim 5, characterized in that: The pressure roller connecting lug (16) is tilted to the right.

7. The anchor chain sliding base frame as described in claim 2, characterized in that: A cover plate (18) is fixed above the upright plate (13) on the right side of the pressure roller connecting ear (16), and the cover plate (18) is fixedly connected to the upright plate (13) and the pressure roller connecting ear (16).

8. The anchor chain sliding base frame as described in claim 2, characterized in that: A vertical plate (19) is fixed inside the vertical plate (13) on the left side of the pressure roller connecting ear (16). An anchor chain connecting block (111) is fixedly connected to the vertical plate (19) through the reinforcing connecting plate (114). The anchor chain connecting block (111) is reinforcedly connected to the left end of the vertical plate (13) through the vertical plate (19) and the reinforcing connecting plate (114).

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