Underwater chain guide for anchor chain mooring
By designing an underwater chain guide including a guide sprocket, a guide chain shaft, a rotating spindle, a rotating bracket, an upper bracket and a lower bracket, the problem of insufficient structural strength and mass of the underwater chain guide in the prior art is solved. It realizes the efficient collection, release and redirection functions of the anchor chain, and improves the service life and corrosion resistance.
Patent Information
- Application Number
- CN202421330078.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-11
AI Technical Summary
When facing harsh marine environments, the structural strength and mass of existing underwater chain guides are insufficient, resulting in large local stress at the contact between the chain guide shaft and the hole, which is prone to wear, which will affect the service life and the system is easily corroded and rusted.
An underwater chain guide including a guide sprocket, a guide chain shaft, a rotating spindle, a rotating bracket, an upper bracket and a lower bracket is designed. Through the combination of a rotating spindle and a rotating bracket, the anchor chain is retracted and redirected. , and enhance the strength and wear resistance of the chain guide through structures such as reinforcement plates, side ribs and sealing plates.
The underwater chain guide can work for a long time in harsh marine environments, and the anchor chain retraction and directional function can be realized. The service life and overall performance of the chain guide are improved, avoiding corrosion and rust problems.
Smart Images
Figure CN222496571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of marine mooring equipment, in particular to an underwater chain guide for anchor chain mooring. Background Art
[0002] Marine energy engineering structures need to withstand special offshore environments, so they have high requirements for structural form and complex and varied design forms. Therefore, in addition to the main structure, the floating platform device is also designed with an anchor chain mooring system to ensure the safety of the operation. Large marine structures use mooring chains. In order to adjust the mooring chain outgoing angle and direction and reduce the wear of the mooring chain, it is necessary to install a matching chain guide device on the pile legs.
[0003] With the rapid increase of marine equipment such as floating wind turbines and cages, the demand for mooring equipment has also increased. Affected by the marine environment, in the face of severe weather such as typhoons, the performance, life, quality and reliability requirements of mooring equipment have also increased. Because the chain guide is loaded by the breaking force of the mooring chain, the local stress at the contact point between the chain guide shaft and the hole is relatively large. The hole and the shaft are prone to wear under normal working conditions, which eventually leads to the failure of the chain guide wheel, affecting the service life. In addition, the entire mooring system is prone to corrosion and rust when working underwater for a long time. Utility Model Content
[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defects of overall structural strength and quality in the prior art, thereby providing an underwater chain guide for anchor chain mooring.
[0005] The above technical objectives of the utility model are achieved through the following technical solutions:
[0006] An underwater chain guide for anchor chain mooring, comprising a guide chain wheel, a guide chain shaft, a rotating main shaft, a rotating bracket, an upper bracket and a lower bracket. The guide chain shaft passes through the axis of the guide chain wheel and is positioned and rotatably installed on the rotating bracket at both ends. The axis of the guide chain shaft is arranged perpendicular to the width direction of the rotating bracket. The upper bracket is arranged at the top of the rotating bracket on a side away from the guide chain wheel, and the lower bracket is arranged at the bottom of the rotating bracket on a side away from the guide chain wheel. The rotating main shaft is vertically positioned and rotatably installed in the rotating bracket and is connected to the upper bracket and the lower bracket at both ends respectively. The axis of the rotating main shaft is perpendicular to the axis of the chain guide shaft.
[0007] By adopting the above technical scheme, the underwater chain guide of the present application can be installed on the outer side wall of the platform structure and work underwater for a long time, the anchor chain can pass through the guide chain wheel for retraction and the retraction direction of the guide chain can be changed by rotating the rotating main shaft; when in use, the upper bracket and the lower bracket provide support for the rotating bracket and are fixed to the outside of the platform structure, the guide chain wheel and the chain guide shaft realize the anchor chain retraction and extension function, and the rotating main shaft and the rotating bracket realize the anchor chain retraction and extension and redirection function.
[0008] Furthermore, the rotating bracket is U-shaped and its opening is arranged toward the guide sprocket, the guide sprocket is sleeved on the guide chain shaft and arranged in the opening of the rotating bracket, the axis of the guide chain shaft is perpendicular to the two side edges of the rotating bracket, and the two side edges of the rotating bracket are arranged on the side away from each other with side ribs, and the side ribs are arranged along the length direction of the side of the rotating bracket and are perpendicular to the side surface of the rotating bracket.
[0009] By adopting the above technical solution, the guide chain wheel is positioned and rotatably installed on the rotating bracket to realize the chain guide function, and the side ribs are arranged along the length of the rotating bracket to enhance the external strength of the rotating bracket to prevent the side of the guide chain wheel from being broken due to force when in use.
[0010] Furthermore, a reinforcing plate perpendicular to the side is provided between the two side edges of the rotating bracket, the reinforcing plate is obliquely arranged in the rotating bracket, the top of the reinforcing plate is arranged close to the rotating main axis and the bottom is arranged away from the rotating main axis, a waist-shaped weight-reducing hole is provided near the top of the reinforcing plate, and an observation hole is also provided on the rotating bracket, the observation hole is provided on the two side edges of the rotating bracket and between the upper bracket and the lower bracket, and an inverted U-shaped weight-reducing hole is provided at the bottom of the bottom edge of the rotating bracket away from the opening.
[0011] By adopting the above technical solution, a reinforcing plate is set in the rotating bracket to improve the structural strength of the rotating bracket itself, and weight-reducing holes are opened on the reinforcing plate and the rotating bracket to reduce the weight of both without affecting the structural strength of the rotating bracket, thereby achieving the purpose of facilitating rotational movement; the observation hole can also pay attention to the situation of the rotating spindle while reducing weight, ensuring that the direction adjustment function of the chain guide is not damaged.
[0012] Furthermore, the guide chain wheel includes two sprocket plates and a connecting ring that are integrally arranged, the sprocket plates are arranged at opposite ends of the connecting ring and the diameter of the connecting ring is smaller than the diameter of the sprocket plates, and a plurality of fold line grooves and weight reduction grooves are provided on the sprocket plates, the weight reduction grooves penetrate the sprocket plates, and the fold line grooves are arranged between the two weight reduction grooves and the depth of the fold line grooves is smaller than the depth of the weight reduction grooves.
[0013] By adopting the above technical solution, the anchor chain is wound around the guide chain wheel and embedded in the outer side of the connecting ring between the two sprocket discs. As the guide chain wheel rotates, the anchor chain is retracted and released. The fold line groove engages with the shape of the anchor chain and does not jam the anchor chain, thereby preventing the anchor chain from falling off and also preventing the anchor chain from breaking due to jamming.
[0014] Furthermore, an axial hole for the guide chain shaft to pass through is opened in the middle of the guide chain wheel, and sprocket bearings sleeved on the guide chain shaft are arranged at both ends of the axial hole. A stepped mounting groove is opened in the axial hole corresponding to the sprocket bearing, and a hole wear-resistant layer is clad on the mounting groove. A shaft wear-resistant layer is clad on the sprocket bearing mounting positions at both ends of the guide chain shaft.
[0015] By adopting the above technical solution, a sprocket bearing is installed in the shaft hole to cooperate with the rotation of the guide chain shaft. Wear-resistant layers are respectively coated on the parts that are prone to wear when the guide chain wheel rotates, thereby increasing the overall service life. The hole wear-resistant layer coated on the installation groove and the shaft wear-resistant layer coated on both ends of the guide chain shaft not only improve the wear resistance but also increase the surface allowable stress.
[0016] Furthermore, sealing plates are provided at both ends of the chain guide shaft. The diameter of the sealing plates is larger than the diameter of the chain guide shaft and the sealing plates are fixed to the rotating bracket by multiple hexagonal bolts. The rotating bracket is also provided with a positioning card corresponding to the sealing plate. The positioning card is rectangular and is arranged below the sealing plate. The sealing plate is provided with a positioning groove corresponding to the positioning card.
[0017] By adopting the above technical solution, after the chain guide shaft is installed, the two ends of the chain guide shaft are sealed through the sealing plate. The setting of the positioning card and the positioning groove ensures that the sealing plate and the chain guide shaft are coaxially arranged and realizes the external sealing at the bearing at the end of the chain guide shaft, which has a sealing and waterproof effect.
[0018] Furthermore, the upper bracket includes an upper base plate and two upper ribs, the upper ribs are vertically fixed on the upper base plate and arranged along the length direction of the upper base plate, and two upper connecting plates are connected between the two upper ribs, and the length of the upper connecting plate close to the rotating bracket is shorter than the length of the upper connecting plate away from the rotating bracket; the lower bracket includes a lower base plate and two lower ribs, the lower ribs are vertically fixed under the lower base plate and arranged along the length direction of the lower base plate.
[0019] By adopting the above technical solution, the two ends of the rotating main shaft are respectively clamped on the upper bracket and the lower bracket, the top end is located in the cavity formed by the upper rib plate and the upper connecting plate, and the bottom end is located between the two lower rib plates. The upper rib plate and the upper connecting plate improve the structural strength of the upper bracket on the one hand, and protect the outer side of the rotating main shaft on the other hand, thereby reducing the impact of the harsh marine environment. Similarly, the lower rib plate improves the structural strength of the lower bracket while protecting the bottom of the rotating main shaft.
[0020] Furthermore, the upper bracket and the lower bracket are both provided with a through hole for the rotating spindle to pass through, and a spindle bearing sleeved on the rotating spindle is arranged in the through hole, and the rotating bracket is provided with a stepped accommodating groove corresponding to the spindle bearing, and a penetrating wear-resistant layer is clad on the accommodating groove, and a rotating wear-resistant layer is clad at the spindle bearing installation positions at both ends of the rotating spindle; a limiting plate extends from the top of the rotating spindle, and the limiting plate has a diameter larger than the diameter of the rotating spindle and is clamped on the upper base plate, and a fixing plate is also provided at the bottom of the rotating spindle, and the fixing plate has a diameter larger than the diameter of the rotating spindle and is fixed under the lower base plate by multiple hexagonal bolts.
[0021] By adopting the above technical scheme, a spindle bearing is installed in the penetration hole to assist the rotation of the rotating spindle, and a penetration wear-resistant layer and a rotation wear-resistant layer are respectively clad at the rotating parts prone to wear to improve the wear resistance. The top limit plate of the rotating spindle and the bottom fixed plate are convenient for the installation of the rotating spindle on the one hand, and on the other hand, a sealing structure is formed with the upper bracket and the lower bracket to prevent water vapor from penetrating into the rotating part of the rotating spindle, thereby reducing water vapor erosion.
[0022] In summary, the technical solution of the utility model has the following advantages:
[0023] 1. The underwater chain guide for anchor chain mooring provided by the utility model can be installed on the outer side wall of the platform structure and work underwater for a long time. The anchor chain can pass through the guide chain wheel for retraction and the retraction direction of the guide chain can be changed by rotating the rotating main shaft.
[0024] 2. The underwater chain guide for anchor chain mooring provided by the utility model, when in use, the upper bracket and the lower bracket provide support for the rotating bracket and are fixed on the outside of the platform structure, the upper bracket and the lower bracket also provide protection for the rotating main shaft, the guide chain wheel and the guide chain shaft realize the function of anchor chain retraction and release, and the rotating main shaft and the rotating bracket realize the function of anchor chain retraction and release and redirection.
[0025] 3. The underwater chain guide for anchor chain mooring provided by the utility model has sealing plates at both ends of the chain guide shaft, a limit plate extending from the top of the rotating main shaft and a fixed plate at the bottom, so as to achieve sealing at the two rotating shafts, reduce water vapor infiltration and erosion, and increase the service life of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0027] Figure 1 It is a schematic diagram of the overall structure of an underwater chain guide for anchor chain mooring provided in one embodiment of the utility model;
[0028] Figure 2 A schematic diagram of the explosion structure of an underwater chain guide for anchor chain mooring provided in one embodiment of the utility model;
[0029] Figure 3 A schematic cross-sectional view of a rotating bracket provided in one embodiment of the utility model;
[0030] Figure 4A schematic diagram of the structure of an upper bracket provided in one embodiment of the utility model;
[0031] Figure 5 It is a schematic structural diagram of a lower bracket provided in one embodiment of the utility model.
[0032] Description of reference numerals:
[0033] 1. Guide chain wheel; 11. Sprocket plate; 111. Broken line groove; 112. Weight reduction groove; 12. Connecting ring; 13. Shaft hole; 14. Sprocket bearing; 15. Mounting groove; 16. Hole wear-resistant layer; 2. Guide chain shaft; 21. Shaft wear-resistant layer; 22. Sealing plate; 221. Positioning groove; 3. Rotating spindle; 31. Rotating wear-resistant layer; 32. Limiting plate; 33. Fixed plate; 4. Rotating bracket; 41. Side rib plate; 42. Reinforcement plate; 43. Weight reduction hole; 44. Observation hole; 45. Positioning card; 5. Upper bracket; 51. Upper base plate; 52. Upper rib plate; 53. Upper connecting plate; 6. Lower bracket; 61. Lower base plate; 62. Lower rib plate; 7. Through hole; 71. Spindle bearing; 72. Accommodating groove; 73. Through wear-resistant layer. DETAILED DESCRIPTION
[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0035] An underwater chain guide for anchor chain mooring, such as Figure 1 and Figure 2 As shown, it includes a guide chain wheel 1, a guide chain shaft 2, a rotating main shaft 3, a rotating bracket 4, an upper bracket 5 and a lower bracket 6. The guide chain shaft 2 passes through the axis of the guide chain wheel 1 and is positioned and rotatably installed at both ends on the rotating bracket 4. The axis of the guide chain shaft 2 is perpendicular to the width direction of the rotating bracket 4, that is, it is arranged in the front and rear direction of the position shown in the figure. The upper bracket 5 is arranged at the top of the right side of the rotating bracket 4, and the lower bracket 6 is arranged at the bottom of the right side of the rotating bracket. The rotating main shaft 3 is vertically positioned and rotatably installed in the rotating bracket 4 and the upper and lower ends are respectively connected to the upper bracket 5 and the lower bracket 6. The axis of the rotating main shaft 3 is vertical and perpendicular to the axis of the guide chain shaft 2. The underwater chain guide of the present application can be installed on the outer side wall of the platform structure and work underwater for a long time. The anchor chain can pass through the guide chain wheel 1 for retracting and releasing work and change the retracting and releasing direction of the guide chain by rotating the rotating main shaft 3; when in use, the upper bracket 5 and the lower bracket 6 provide support for the rotating bracket 4 and are fixed on the outside of the platform structure. The guide chain wheel 1 and the guide chain shaft 2 realize the function of retracting and releasing the anchor chain, and the rotating main shaft 3 and the rotating bracket 4 realize the function of retracting and redirecting the anchor chain.
[0036] like Figure 1 , Figure 2 and Figure 3As shown, the rotating bracket 4 is U-shaped and its opening is arranged toward the guide sprocket 1. The opening of the rotating bracket 4 is toward the left side. The guide sprocket 1 is sleeved on the guide chain shaft 2 and arranged in the opening of the rotating bracket 4. The guide sprocket 1 is located at the top of the left side of the rotating bracket 4. The axis of the guide chain shaft 2 is perpendicular to the two sides of the rotating bracket 4. The side ribs 41 are arranged on the side of the rotating bracket 4 that is away from each other, that is, the outside of the rotating bracket 4. The side ribs 41 are arranged along the length direction of the side of the rotating bracket 4 and are perpendicular to the side of the side of the rotating bracket 4. The guide sprocket 1 is positioned and rotatably installed on the rotating bracket 4 to realize the function of the chain guide. The side ribs 41 are arranged along the length of the rotating bracket 4 to enhance the external strength of the rotating bracket 4 to prevent the side of the guide sprocket 1 from being broken by force when in use.
[0037] A reinforcing plate 42 perpendicular to the side is also provided between the two side edges of the rotating bracket 4. The reinforcing plate 42 is obliquely provided in the rotating bracket 4. The top of the reinforcing plate 42 is provided close to the rotating main shaft 3 and the bottom is provided away from the rotating main shaft 3. A waist-shaped weight-reducing hole 43 is provided in the upper half of the reinforcing plate 42, and an inverted U-shaped weight-reducing hole 43 is provided at the bottom of the bottom edge of the rotating bracket 4 away from the opening. The reinforcing plate 42 is provided in the rotating bracket 4 to improve the structural strength of the rotating bracket 4 itself. The weight-reducing holes 43 provided on the reinforcing plate 42 and the rotating bracket 4 reduce the weight of both without affecting the structural strength of the rotating bracket 4, thereby achieving the purpose of facilitating the rotating movement.
[0038] The rotating bracket 4 is also provided with an observation hole 44, which is arranged on both sides of the rotating bracket 4 and between the upper bracket 5 and the lower bracket 6. The observation hole 44 can pay attention to the situation of the rotating spindle 3 while reducing weight, ensuring that the direction adjustment function of the chain guide is not damaged.
[0039] like Figure 2 As shown, the guide chain wheel 1 includes two sprocket discs 11 and a connecting ring 12 which are integrally arranged. The sprocket discs 11 are arranged at opposite ends of the connecting ring 12 and the diameter of the connecting ring 12 is smaller than the diameter of the sprocket disc 11. The sprocket disc 11 is provided with a plurality of fold line grooves 111 and weight reduction grooves 112. The weight reduction grooves 112 are arranged through the sprocket disc 11. The fold line grooves 111 are arranged between the two weight reduction grooves 112 and the depth is smaller than the depth of the weight reduction grooves 112. The anchor chain is wound around the guide chain wheel 1 and is embedded in the outer side of the connecting ring 12 between the two sprocket discs 11. As the guide chain wheel 1 rotates to drive the retraction and extension of the anchor chain, the fold line grooves 111 are engaged with the shape of the anchor chain and will not jam the anchor chain, thereby preventing the anchor chain from falling off during movement and also preventing the anchor chain from breaking due to jamming.
[0040] like Figure 2 and Figure 3As shown, a shaft hole 13 is provided in the middle of the guide chain wheel 1 for the guide chain shaft 2 to pass through, and sprocket bearings 14 are provided at both ends of the shaft hole 13 and sleeved on the guide chain shaft 2. A stepped mounting groove 15 is provided in the shaft hole 13 corresponding to the sprocket bearing 14, and a hole wear-resistant layer 16 is clad on the mounting groove 15. A shaft wear-resistant layer 21 is clad at the mounting positions of the sprocket bearing 14 at both ends of the guide chain shaft 2. The sprocket bearing 14 is installed in the shaft hole 13 to rotate with the guide chain shaft 2, and the wear-resistant layers are clad at the parts that are easy to wear when the guide chain wheel 1 rotates, thereby improving the overall service life. The hole wear-resistant layer 16 clad on the mounting groove 15 and the shaft wear-resistant layer 21 clad at both ends of the guide chain shaft 2 improve the wear resistance and the surface allowable stress.
[0041] Sealing plates 22 are also provided at both ends of the chain guide shaft 2. The diameter of the sealing plates 22 is larger than that of the chain guide shaft 2 and is fixed to the rotating bracket 4 by a plurality of hexagonal bolts. The rotating bracket 4 is also provided with a positioning card 45 corresponding to the sealing plate 22. The positioning card 45 is rectangular and is provided below the sealing plate 22. The sealing plate 22 is provided with a positioning groove 221 corresponding to the positioning card 45. After the chain guide shaft 2 is installed, the sealing operation is performed on both ends of the chain guide shaft 2 through the sealing plate 22. The arrangement of the positioning card 45 and the positioning groove 221 ensures that the sealing plate 22 is coaxially arranged with the chain guide shaft 2 and realizes the external sealing at the bearing at the end of the chain guide shaft 2, which plays a sealing and waterproofing effect.
[0042] like Figure 2 , Figure 4 and Figure 5 As shown, the upper bracket 5 includes an upper bottom plate 51 and two upper ribs 52, the upper ribs 52 are vertically fixed on the upper bottom plate 51 and arranged along the length direction of the upper bottom plate 51, and two upper connecting plates 53 are connected between the two upper ribs 52, and the length of the upper connecting plate 53 close to the rotating bracket 4 is shorter than the length of the upper connecting plate 53 away from the rotating bracket 4. The distance between the left ends of the two upper ribs 52 is shorter than the distance between the right ends of the two upper ribs 52.
[0043] The lower bracket 6 includes a lower bottom plate 61 and two lower ribs 62, and the lower ribs 62 are vertically fixed below the lower bottom plate 61 and arranged along the length direction of the lower bottom plate 61. The two lower ribs 62 are arranged relatively inclined, and the distance between the left ends of the two lower ribs 62 is smaller than the distance between the right ends of the two lower ribs 62.
[0044] The two ends of the rotating main shaft 3 are respectively clamped on the upper bracket 5 and the lower bracket 6, the top end is located in the cavity formed by the upper rib 52 and the upper connecting plate 53, and the bottom end is located between the two lower ribs 62. The upper rib 52 and the upper connecting plate 53 improve the structural strength of the upper bracket 5 on the one hand and protect the outer side of the rotating main shaft 3 on the other hand to reduce the impact of the harsh marine environment. Similarly, the lower rib 62 improves the structural strength of the lower bracket 6 while protecting the bottom of the rotating main shaft 3.
[0045] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, both the upper bracket 5 and the lower bracket 6 are provided with a through hole 7 for the rotating main shaft 3 to pass through, and a spindle bearing 71 sleeved on the rotating main shaft 3 is arranged in the through hole 7. The rotating bracket 4 is provided with a stepped receiving groove 72 corresponding to the spindle bearing 71, and a through wear-resistant layer 73 is clad on the receiving groove 72, and a rotating wear-resistant layer 31 is clad at the installation positions of the spindle bearing 71 at both ends of the rotating main shaft 3. The spindle bearing 71 is installed in the through hole 7 to assist the rotating main shaft 3 in rotating, and the through wear-resistant layer 73 and the rotating wear-resistant layer 31 are clad at the rotating positions prone to wear to improve the wear resistance.
[0046] A limit plate 32 is extended from the top of the rotating spindle 3. The limit plate 32 has a diameter greater than that of the rotating spindle 3 and is clamped on the upper bottom plate 51. A fixing plate 33 is also provided at the bottom of the rotating spindle 3. The fixing plate 33 has a diameter greater than that of the rotating spindle 3 and is fixed below the lower bottom plate 61 by a plurality of hexagonal bolts. The limit plate 32 at the top of the rotating spindle 3 and the fixing plate 33 at the bottom facilitate the installation of the rotating spindle 3 on the one hand, and on the other hand, form a sealing structure with the upper bracket 5 and the lower bracket 6 to prevent water vapor from penetrating into the rotating part of the rotating spindle 3 and reduce water vapor erosion.
[0047] The working principle and use method of the underwater chain guide for anchor chain mooring are as follows: during manufacturing, a perforated wear-resistant layer 16 is clad on the installation groove 15, a shaft wear-resistant layer 21 is clad at the installation positions of the sprocket bearings 14 at both ends of the chain guide shaft 2, a through wear-resistant layer 73 is clad on the accommodating groove 72, and a rotating wear-resistant layer 31 is clad at the installation positions of the main shaft bearings 71 at both ends of the rotating main shaft 3; then, the rotating main shaft 3 is passed through the through hole 7, and the upper bracket 5 and the lower bracket 6 are fixed at both ends respectively, the guide chain wheel 1 is installed on the rotating bracket 4 and the guide chain shaft 2 is passed through the shaft hole 13, and the assembled chain guide is installed on the outer side wall of the platform structure, the anchor chain passes through the guide chain wheel 1 for retraction and the retraction direction of the guide chain is changed by the rotation of the rotating main shaft 3.
[0048] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.
Claims
1. An underwater chain guide for anchor chain mooring, characterized in that: The invention comprises a guide chain wheel (1), a guide chain shaft (2), a rotating main shaft (3), a rotating bracket (4), an upper bracket (5) and a lower bracket (6); the guide chain shaft (2) passes through the axis of the guide chain wheel (1) and is rotatably mounted at both ends on the rotating bracket (4); the axis of the guide chain shaft (2) is arranged perpendicular to the width direction of the rotating bracket (4); the upper bracket (5) is arranged at the top of the rotating bracket (4) away from the guide chain wheel (1); the lower bracket (6) is arranged at the bottom of the rotating bracket (4) away from the guide chain wheel (1); the rotating main shaft (3) is vertically positioned and rotatably mounted in the rotating bracket (4) and is connected to the upper bracket (5) and the lower bracket (6) at both ends; the axis of the rotating main shaft (3) is perpendicular to the axis of the guide chain shaft (2).
2. An underwater chain guide for anchor chain mooring according to claim 1, characterized in that: The rotating bracket (4) is U-shaped and its opening is arranged toward the guide sprocket (1); the guide sprocket (1) is sleeved on the guide chain shaft (2) and arranged in the opening of the rotating bracket (4); the axis of the guide chain shaft (2) is perpendicular to the two side edges of the rotating bracket (4); side ribs (41) are arranged on the side away from each other on the two side edges of the rotating bracket (4); the side ribs (41) are arranged along the length direction of the side edge of the rotating bracket (4) and are perpendicular to the side edge of the rotating bracket (4).
3. An underwater chain guide for anchor chain mooring according to claim 2, characterized in that: A reinforcing plate (42) perpendicular to the side edges is also provided between the two side edges of the rotating bracket (4); the reinforcing plate (42) is obliquely arranged inside the rotating bracket (4); the top of the reinforcing plate (42) is arranged close to the rotating main shaft (3) and the bottom is arranged away from the rotating main shaft (3); a waist-shaped weight-reducing hole (43) is provided near the top of the reinforcing plate (42); an observation hole (44) is also provided on the rotating bracket (4); the observation hole (44) is arranged on the two side edges of the rotating bracket (4) and is located between the upper bracket (5) and the lower bracket (6); an inverted U-shaped weight-reducing hole (43) is provided at the bottom of the bottom edge of the rotating bracket (4) away from the opening.
4. An underwater chain guide for anchor chain mooring according to claim 3, characterized in that: The guide chain wheel (1) comprises two sprocket discs (11) and a connecting ring (12) which are integrally arranged. The sprocket discs (11) are arranged at two opposite ends of the connecting ring (12) and the diameter of the connecting ring (12) is smaller than the diameter of the sprocket disc (11). The sprocket disc (11) is provided with a plurality of fold line grooves (111) and weight reduction grooves (112). The weight reduction grooves (112) penetrate the sprocket disc (11). The fold line groove (111) is arranged between the two weight reduction grooves (112) and the depth of the fold line groove (111) is smaller than the depth of the weight reduction groove (112).
5. An underwater chain guide for anchor chain mooring according to claim 4, characterized in that: The guide chain wheel (1) has an axial hole (13) in the middle thereof for the guide chain shaft (2) to pass through, sprocket bearings (14) sleeved on the guide chain shaft (2) are arranged at both ends of the axial hole (13), the axial hole (13) corresponding to the sprocket bearing (14) has a stepped mounting groove (15), the mounting groove (15) is clad with a hole wear-resistant layer (16), and the two ends of the guide chain shaft (2) corresponding to the sprocket bearing (14) mounting positions are clad with shaft wear-resistant layers (21).
6. An underwater chain guide for anchor chain mooring according to claim 5, characterized in that: Sealing plates (22) are also provided at both ends of the chain guide shaft (2); the diameter of the sealing plate (22) is larger than the diameter of the chain guide shaft (2) and is fixed to the rotating bracket (4) by a plurality of hexagonal bolts; the rotating bracket (4) is also provided with a positioning card (45) corresponding to the sealing plate (22); the positioning card (45) is rectangular and is arranged below the sealing plate (22); and the sealing plate (22) is provided with a positioning groove (221) corresponding to the positioning card (45).
7. An underwater chain guide for anchor chain mooring according to claim 6, characterized in that: The upper bracket (5) comprises an upper base plate (51) and two upper rib plates (52), wherein the upper rib plates (52) are vertically fixed on the upper base plate (51) and arranged along the length direction of the upper base plate (51), and two upper connecting plates (53) are connected between the two upper rib plates (52), and the length of the upper connecting plate (53) on the side close to the rotating bracket (4) is shorter than the length of the upper connecting plate (53) on the side away from the rotating bracket (4); the lower bracket (6) comprises a lower base plate (61) and two lower rib plates (62), wherein the lower rib plates (62) are vertically fixed below the lower base plate (61) and arranged along the length direction of the lower base plate (61).
8. An underwater chain guide for anchor chain mooring according to claim 7, characterized in that: The upper bracket (5) and the lower bracket (6) are both provided with a through hole (7) for the rotating spindle (3) to pass through, a spindle bearing (71) sleeved on the rotating spindle (3) is arranged in the through hole (7), the rotating bracket (4) is provided with a stepped receiving groove (72) corresponding to the spindle bearing (71), a through wear-resistant layer (73) is clad on the receiving groove (72), and a rotating wear-resistant layer (31) is clad at the installation positions of the spindle bearing (71) at both ends of the rotating spindle (3); a limiting plate (32) is extended from the top of the rotating spindle (3), the limiting plate (32) has a diameter larger than the diameter of the rotating spindle (3) and is clamped on the upper bottom plate (51), and a fixing plate (33) is also provided at the bottom of the rotating spindle (3), the fixing plate (33) has a diameter larger than the diameter of the rotating spindle (3) and is fixed below the lower bottom plate (61) by a plurality of hexagonal bolts.