A new type of rotatable chain stopper for a chain tensioner

Abstract

The application discloses a rotatable chain stopping device of a new anchor chain tensioner, which comprises a spring hanging buckle hole, a support arm, a tension support and an elastic element; the support arm is provided with the tension support at the end thereof; the elastic element is fixedly connected to the anchor chain bolt hole and is in contact with the tension support at the middle portion thereof; and the elastic element is wound and fixed on the spring hanging buckle hole by adjusting the amount of the elastic rubber body constituting the elastic element.

Description

Technical Field

[0001] This utility model relates to a novel rotatable chain stopper for anchor chain tensioners, belonging to the field of anchor chain tensioning technology. Background Technology

[0002] The foundation of an offshore floating wind turbine is anchored to the seabed through a mooring system. When the anchor chain of the mooring system is installed, the tension of the anchor chain under mooring force needs to be tightened to the designed preload state through an anchor chain tensioner.

[0003] To prevent the anchor chain from retracting when being tensioned, a rotatable chain stop device that engages and locks against the anchor chain protrusion must be rotatably installed at the bottom of the drooping support arm. When the rotatable chain stop device is installed to engage and lock the anchor chain, the rotatable chain stop device must be able to rotate in one direction and contact the anchor chain protrusion.

[0004] Existing rotatable chain stop device installation technology can be found in Chinese patent application publication number CN110316318A. Although the use of torsion springs can enable the chain stop arm to rotate in one direction to contact the anchor chain, it is inconvenient to adjust the torsion springs after fatigue and loss of elasticity. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a novel rotatable chain stopper for anchor chain tensioners.

[0006] This utility model is achieved through the following technical solution.

[0007] This utility model provides a novel rotatable chain stop device for anchor chain tensioners, comprising: a chain stop body, wherein a short chain stop tongue for locking the anchor chain and a long chain stop tongue for installing elastic elements are fixedly connected to the top of the chain stop body. The end of the chain stop tongue, which is away from the chain stop body, is provided with a spring hook hole for installing an elastic element.

[0008] The chain stopper body is provided with a chain stop shaft hole, which is rotatably hinged to the support arm via a chain stop pin.

[0009] The support arm is equipped with an observation window.

[0010] The bottom of the chain stopper is fixed with a chain stopper weight, the weight of which is greater than the sum of the weights of the long chain stopper tongue and the short chain stopper tongue.

[0011] The stop chain tongue has a through-type structural groove in the middle.

[0012] The end of the chain stop tongue, which is away from the chain stopper body, is also provided with a manual drag chain buckle hole, which is distributed alternately with the spring hook hole.

[0013] The spring hook hole is wrapped and fixedly installed with an elastic element; the support arm consists of two spaced-apart arms, and the support arm is fixedly connected to a tension bracket. An anchor chain bolt is provided on the end of the tension bracket away from the support arm; the elastic element is fixedly connected to the anchor chain bolt, and the middle part of the elastic element contacts and is supported on the tension bracket.

[0014] The beneficial effect of this utility model is that after the elastic element experiences fatigue and elasticity decreases, the elasticity of the elastic element can be easily adjusted by adjusting the amount of the elastic element, which is made of elastic rubber body, wrapped and fixed on the spring hook hole, thus solving the problem that it is inconvenient to adjust the elasticity of the torsion spring after fatigue and elasticity decreases. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present invention in its usage state; Figure 2 This is a front view schematic diagram of the utility model in use; Figure 3 This is a structural schematic diagram of the tension bracket of this utility model; Figure 4 This is a front view schematic diagram of the tension bracket of this utility model; Figure 5 This is a top view of the tension bracket of this utility model; Figure 6 This is a schematic diagram of the structure of the five-jaw sprocket of this utility model; Figure 7 This is a side sectional view of the five-jaw sprocket of this utility model; Figure 8 This is a schematic diagram of the structure of the chain stopper body of this utility model; In the picture: 1-Tension bracket; 11-Bracket arm; 12-Sprocket rotating hole; 13-Chain stop rotating hole; 14-Anchor chain bolt opening; 15-Observation window; 16-Chain stop release arm; 17-Arc plate; 18-Bracket space; 191-Sprocket pin; 192-Chain stop pin; 2-Five-jaw sprocket; 21-Sprocket disc; 22-Sprocket claw; 23-Construction groove; 24-Sprocket connecting shaft; 25-Sprocket shaft hole; 26-Round hole; 27-Sprocket clearance; 28-Chain groove; 3-Chain stopper body; 31-Chain stopper counterweight; 32-Chain stopper shaft hole; 33-Chain stopper short tongue; 34-Chain stopper long tongue; 35-Manual cable chain pull buckle hole; 36-Spring hook hole; 37-Construction groove; 4-Anchor chain; 5-Elastic element. 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 8 As shown.

[0018] This application discloses a novel anchor chain tensioner, comprising: A tension bracket 1 for connecting the anchor chain on the anchor tube is provided. Two spaced support arms 11 are integrally fixedly connected to the tension bracket 1. An anchor chain bolt hole 14 is provided at the end of the tension bracket 1 away from the support arm 11. The anchor chain bolt hole 14 is used to connect the anchor chain on the anchor tube.

[0019] An arc-shaped plate 17 is integrally fixedly connected to the tension bracket 1 near the anchor chain bolt 14. The arc-shaped plate 17 is integrally fixedly connected to the tension bracket 1 via the chain stop release arm 16. The arc-shaped plate 17 provides sliding support for the anchor chain 4.

[0020] The arc-shaped plate 17 facing the support arm 11 has a circular arc surface, and the arc-shaped plate 17 contacts the anchor chain 4 through the circular arc surface.

[0021] A five-jaw sprocket 2 is rotatably mounted on the support arm 11, away from the anchor chain bolt opening 14. The five-jaw sprocket 2 provides rolling support for the anchor chain 4. There is a gap between the arc plate 17 and the five-jaw sprocket 2 for the anchor chain 4 to be pulled.

[0022] The arc plate 17 provides sliding support for the anchor chain 4, and the five-jaw sprocket 2 provides rolling support for the anchor chain 4, allowing the anchor chain 4 to be tensioned selectively under sliding or rolling guidance support. When the anchor chain 4 needs to be pulled quickly for tension, the anchor chain 4 is provided with rolling support through the rotatable five-jaw sprocket 2, and the anchor chain 4 is pulled on the rotatable five-jaw sprocket 2, thereby reducing excessive sliding contact of the anchor chain 4.

[0023] A rotatable sprocket according to this application includes: a five-jaw sprocket 2 rotatably mounted on a support arm 11.

[0024] The five-jaw sprocket 2 is composed of two spaced sprocket discs 21, which are fixedly connected as a whole by a sprocket connecting shaft 4.

[0025] The sprocket disc 21 located at the sprocket connecting shaft 4 is provided with a concave structural groove 23, so that the end of the sprocket connecting shaft 4 protrudes into the structural groove 23; the sprocket connecting shaft 4 can be rotatably installed with the sprocket rotating hole 12 at the top of the support arm 11 through the sprocket pin 191.

[0026] Each of the sprocket discs 21 has a sprocket claw 22 integrally fixedly connected to its radial outer circumference. There are five sprocket claws 22 distributed circumferentially. There is a sprocket gap 27 between the sprocket claws 22 on the two sprocket discs 21. The width of the sprocket gap 27 is greater than the protruding joint of the anchor chain 4 but smaller than the flat joint of the anchor chain 4. This ensures that the sprocket gap 27 can only accommodate the protruding joint of the anchor chain 4, and the flat joint of the anchor chain 4 cannot enter the sprocket gap 27.

[0027] The radial surface of the sprocket disc 21 is provided with a chain groove 28 for accommodating the flat section of the anchor chain 4.

[0028] The sprocket claws 22 of the two sprocket discs 21 can abut against the protruding section of the anchor chain 4. The flat section of the anchor chain 4 is accommodated in the chain groove 28, so that each time the anchor chain 4 passes through, it can drive the five-jaw sprocket 2 to rotate once, ensuring that the five-jaw sprocket 2 provides rotational guidance and stability for the anchor chain 4. The sprocket disc 21 has through circular holes 26, which are five in a circumferential array. The circular holes 26 reduce the weight of the sprocket disc 21. There is a sprocket claw 22 between every two circular holes 26, thereby reducing the rotational inertia of the sprocket claw 22.

[0029] The present application discloses a novel anchor chain tensioner with a rotatable chain stop device, comprising: a chain stop body 3 having a chain stop shaft hole 32, wherein the chain stop shaft hole 32 on the chain stop body 3 is rotatably hinged to the chain stop rotating hole 13 at the bottom of the support arm 11 via a chain stop pin 192.

[0030] The bottom of the chain stopper body 3 is integrally fixed with a chain stopper weight 31, the weight of which is greater than the sum of the weights of the chain stopper long tongue 34 and the chain stopper short tongue 33. The top of the chain stopper body 3 is integrally fixed with a chain stopper short tongue 33 that abuts against the locking anchor chain 4 and a chain stopper long tongue 34 for installing the elastic element 5. The chain stopper long tongue 34 and the chain stopper short tongue 33 are forked. The chain stopper weight 31 pulls the chain stopper body 3 around the chain stopper pin 192 by its own downward gravity, so that the chain stopper short tongue 33 abuts against the locking anchor chain 4 in normal condition.

[0031] The chain stop tongue 34 has a through-type construction groove 37 in the middle, which is used to reduce the weight of the chain stop tongue 34.

[0032] The end of the chain stop tongue 34, which is away from the chain stopper body 3, is provided with a manually operated drag chain buckle hole 35 and a spring hook hole 36 distributed at intervals. The manually operated drag chain buckle hole 35 allows a finger to be inserted to pull the chain stop tongue 34, causing the chain stopper body 3 to rotate around the chain pin 192. The spring hook hole 36 is wrapped and fixedly installed with an elastic element 5. The elastic element 5 is fixedly connected to the anchor chain bolt 14. The middle part of the elastic element 5 is distributed on the tension bracket 1 at the root of the chain stopper release arm 16, so that the middle part of the elastic element 5 is in contact support.

[0033] When the anchor chain 4 rolls around the five-jaw sprocket 2 to tighten, the anchor chain 4 presses against the chain stop tongue 33 and rotates counterclockwise. At this time, the elastic element 5 is pulled into an elastic state. The elastic force of the elastic element 5 pulls the chain stop tongue 34, causing the chain stop body 3 to rotate clockwise around the chain pin 192, so that the chain stop tongue 33 always abuts and locks the anchor chain 4 in its normal state. When the anchor chain 4 falls back, it will be locked by the chain stop tongue 33, so that the anchor chain 4 can only be pulled upwards to tighten.

[0034] After the elastic element 5 experiences fatigue and a decrease in elasticity, the amount by which the elastic element 5, which is composed of elastic rubber body, is wound and fixed on the spring hook hole 36 can be adjusted to facilitate the adjustment of the elasticity of the elastic element 5, thus solving the problem that it is inconvenient to adjust the elasticity of the torsion spring after fatigue and a decrease in elasticity.

[0035] This application discloses a novel anchor chain tensioner with a tension bracket, comprising: A tension bracket 1 with an anchor chain bolt 14 at one end is provided, and the anchor chain bolt 14 is used to connect the anchor chain on the anchor tube. The other end of the tension bracket 1 is integrally fixedly connected to two spaced bracket arms 11; there is a bracket space 18 between the two spaced bracket arms 11, and there is an anchor chain 4 that needs to be pulled and tensioned and a stop chain tongue 33 that abuts and locks the anchor chain 4 within the bracket space 18 between the bracket arms 11.

[0036] Two spaced-apart support arms 11 are provided with observation windows 15. The observation windows 15 are observation holes that pass through the support arms 11. The observation windows 15 are set on the support arms 11 at the positions corresponding to the anchor chain 4 and the chain stop tongue 33.

[0037] The through hole 15 allows for easy observation of the engagement between the chain stop tongue 33 and the anchor chain 4, enabling timely adjustment of the elasticity of the elastic element 5.

Claims

1. A novel rotatable chain stopper for anchor chain tensioners, characterized in that, include: The chain stopper body (3) has a chain stopper short tongue (33) for abutting the locking anchor chain (4) and a chain stopper long tongue (34) for installing the elastic element (5) fixedly connected to its top. The end of the chain stop tongue (34) away from the chain stop body (3) is provided with a spring hook hole (36) for installing the elastic element (5).

2. The rotatable chain stopper of the novel anchor chain tensioner as described in claim 1, characterized in that: The chain stopper body (3) is provided with a chain stop shaft hole (32), which is rotatably hinged to the support arm (11) through a chain stop pin (192).

3. The rotatable chain stopper of the novel anchor chain tensioner as described in claim 2, characterized in that: The support arm (11) is provided with an observation window (15).

4. The rotatable chain stopper of the novel anchor chain tensioner as described in claim 1, characterized in that: The bottom of the chain stopper body (3) is fixed with a chain stopper weight (31), and the weight of the chain stopper weight (31) is greater than the sum of the weights of the chain stopper long tongue (34) and the chain stopper short tongue (33).

5. The rotatable chain stopper of the novel anchor chain tensioner as described in claim 1, characterized in that: The stop chain tongue (34) has a through-type structural groove (37) in the middle.

6. The rotatable chain stopper of the novel anchor chain tensioner as described in claim 1, characterized in that: The end of the chain stop tongue (34) away from the chain stop body (3) is also provided with a manual drag chain buckle hole (35), and the manual drag chain buckle hole (35) and the spring hook hole (36) are distributed at intervals.

7. The rotatable chain stopper of the novel anchor chain tensioner as described in claim 2, characterized in that: The spring hook hole (36) is wrapped and fixedly installed with an elastic element (5); the support arm (11) consists of two spaced-apart parts, and the support arm (11) is fixedly connected to a tension bracket (1). An anchor chain bolt (14) is provided on the end of the tension bracket (1) away from the support arm (11); the elastic element (5) is fixedly connected to the anchor chain bolt (14), and the middle part of the elastic element (5) is in contact with and supported on the tension bracket.

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