Hydraulic braking type pay-off rack for submarine cable laying

Abstract

The application relates to the technical field of submarine cable pay-off racks, in particular to a hydraulic braking type pay-off rack for submarine cable laying, which comprises a pay-off rack and a matched braking system, a speed change assembly is arranged on the pay-off rack, the pay-off rack is connected with the braking system through the speed change assembly, the pay-off rack comprises a support, a rotating rod is rotatably arranged on the support, a pay-off rack body is arranged on the rotating rod, the braking system comprises a braking assembly and a hydraulic caliper device arranged thereon, and an air cooling assembly is arranged on the braking assembly; through a multi-stage collaborative mechanism of speed change and frequency increase, air duct optimization and liquid cooling self-adaptive regulation and control, the problems that the brake disc temperature is excessively high, the braking performance is reduced and the components are accelerated to be aged due to frequent braking of the existing hydraulic braking type pay-off rack in the submarine cable laying process are effectively solved, and the operation safety, stability and service life of the equipment under complex working conditions are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of submarine cable laying frame technology, and more specifically, to a hydraulically braked laying frame for submarine cable laying. Background Technology

[0002] A search revealed a prefabricated heavy-duty cable laying frame with a braking device, disclosed in CN216037957U. This frame includes a laying frame body, a support frame, and a rotating shaft. It also includes a reinforcing frame, a hydraulic lifting system, a positioning mechanism, and a braking device. Two sets of support frames are respectively arranged at the center positions on both sides of the laying frame. The reinforcing frame is used to support and reinforce the support frame. The hydraulic lifting system is used to support and adjust the rotating shaft. A braking device is installed on one side of the reinforcing frame. This invention occupies little space, facilitates equipment transportation and use, has a stable overall structure, and the laying frame body can adapt to differences in ground elevation at the construction site. Simultaneously, the hydraulic lifting system can ensure the horizontality of the cable reel when the laying frame is tilted, and the braking device can provide sufficient braking force during cable laying.

[0003] The aforementioned patents still have shortcomings in practical use. When the cable laying frame is used to lay submarine cables, it is often necessary to control the operating speed according to the working conditions, frequently employing intermittent braking to reduce speed. For cable laying frames that use hydraulic braking and are equipped with brake discs, repeated continuous braking can easily cause the brake discs to overheat rapidly. Sustained high temperatures may not only cause thermal fade, resulting in decreased braking performance or even failure, but also accelerate the aging and wear of braking components, affecting the safety and reliability of equipment operation.

[0004] Based on this, the present invention discloses a hydraulically braked cable laying frame for submarine cable laying. Summary of the Invention

[0005] To address the problem mentioned in the background art that frequent braking during submarine cable laying can easily lead to a rapid increase in brake disc temperature, potentially causing brake failure and accelerating component aging, thus affecting the safety and reliability of the equipment, this invention provides a hydraulically braked cable laying frame for submarine cable laying. The frame includes a cable laying frame and a matching braking system. The cable laying frame is equipped with a speed-changing assembly, which connects to the braking system. The cable laying frame includes a support, on which a rotating rod is rotatably mounted. The cable laying frame body is mounted on the rotating rod. The braking system includes a braking assembly and a hydraulic caliper device mounted thereon. The braking assembly is equipped with an air-cooling component and includes a mounting rod and two brake disc bodies arranged opposite each other.

[0006] Since the cable laying frame does not rotate very fast during cable laying, the traditional method of directly mounting a brake disc on the cable laying frame cannot create an air duct for active cooling through its own rotation. This technical solution uses the gear transmission principle to amplify the rotational speed and places the brake disc on a gear with a smaller number of teeth to achieve high-speed rotation of the brake disc. At the same time, according to torque analysis, when braking, because the brake disc is large and the gear connected to it has a smaller number of teeth, it can also amplify the braking effect.

[0007] As a further improvement to this technical solution, the transmission assembly includes a large gear fixed on a rotating rod, the large gear meshing with a small gear, the small gear fixed on a support rod, the support rod rotatably mounted on a bracket, the support rod being fixedly connected to a mounting rod, and the number of teeth and outer diameter of the small gear being much smaller than the number of teeth and outer diameter of the large gear.

[0008] Based on this, in order to facilitate the installation of the brake discs and to enable axial elastic expansion and contraction after installation compared to traditional fixed brake discs, it is convenient to prepare for the subsequent liquid cooling circulation speed; secondly, compared to the traditional method, the two brake discs can also cooperate to form an air duct structure after docking.

[0009] As a further improvement to this technical solution, a braking assembly is adopted, including a mounting rod and two brake disc bodies arranged opposite to each other. The two brake disc bodies are connected by a plurality of second elastic telescopic rods arranged circumferentially. The brake disc body is also provided with a first elastic telescopic rod corresponding to each of the second elastic telescopic rods. The brake disc body is connected to the mounting rod through the first elastic telescopic rod. A plurality of mounting grooves corresponding to each of the first elastic telescopic rods are opened on the end of the mounting rod away from the support rod. A connecting rod is fixed in the mounting groove. The brake disc body is slidably connected to the connecting rod through the first elastic telescopic rod. A ventilation groove is opened in the mounting rod between two adjacent first elastic telescopic rods. Both the second elastic telescopic rod and the first elastic telescopic rod are lateral elastic telescopic structures.

[0010] Most importantly, the layout of the second flexible telescopic poles is optimized compared to the traditional layout. Specifically, every three adjacent second flexible telescopic poles and three symmetrically adjacent second flexible telescopic poles form a cross-wind duct structure, which is as follows: Figure 6 As shown, several second elastic telescopic rods form several sets of air duct structures;

[0011] The air-cooled assembly includes an air-guiding structure, which is positioned on both sides of the top and the middle of the bottom at the intersection of airflow directions; see also Figures 5-8 As shown, the air guide structure is hook-shaped, and the head and tail of the hook-shaped structure are parallel wedge-shaped surfaces.

[0012] Specifically, the air guiding structure includes a first guide plate fixed at the top of the second elastic telescopic rod and located at the edge of the brake disc body. The first guide plate has a wedge-shaped structure, and a connecting plate is fixed at the top of the wedge-shaped structure of the first guide plate. The connecting plate is on the same straight line as the second elastic telescopic rod. An arc-shaped plate is fixed at the top of the connecting plate, and a second guide plate is fixed at the other end of the arc-shaped plate. In addition, the inclined surface of the first guide plate is parallel to the second guide plate, and a groove is formed on the inner surface of the hook-shaped structure of the air guiding structure.

[0013] In another option, in order to further increase the air intake volume of the first air duct;

[0014] As a further improvement to this technical solution, the air-cooling component also includes an air inlet slot. The cross-flow duct structure is divided into a first air duct and a second air duct. The first air duct is an air inlet duct, and the second air duct is an air outlet duct. An air inlet slot is provided on the brake disc body in the area of ​​the first air duct. The cross-section of the air inlet slot is conical, and the narrower air outlet in the conical structure of the air inlet slot is opened towards the interlayer between the two brake disc bodies.

[0015] In another scheme, since the airflow velocity of the second air duct area is lower than that of the first air duct, the heat dissipation effect of this area is not good. On this basis, a passive heat dissipation scheme is added, which is combined with the elastic extension and retraction between the two brake disc bodies. That is, when the hydraulic caliper device brakes and clamps, the contraction of the brake disc body improves the cooling efficiency of the refrigerant circulation and thus improves the heat dissipation effect. This means that the greater the braking force of the hydraulic caliper device, the higher the heat dissipation efficiency is required.

[0016] As a further improvement to this technical solution, the mounting rod is also equipped with a liquid cooling assembly, which includes a cooling groove located in the second air duct area within the brake disc body. The bottom of the cooling groove along its radially inner side is connected to an inlet pipe and an outlet pipe, respectively. An adjusting head and a connecting head are elastically and telescopically provided on the mounting rod in the direction directly opposite the inlet and outlet pipes, respectively. One end of the mounting rod is connected to a pumping pipe, which is rotatably connected to the mounting rod. The other end of the mounting rod is connected to a return pipe via a support rod, which is rotatably connected to the support rod. The pumping pipe and the return pipe are respectively connected to corresponding refrigerant circulation pumps.

[0017] Secondly, both the adjusting head and the connector are wedge-shaped structures. The outlet pipe is connected to the return pipe through the connector, and the inlet pipe is connected to the pumping pipe through the adjusting head. The bottoms of both the inlet and outlet pipes are sloped, and the inner diameter of the top opening of the connector remains constant. The adjusting head has an adjustment interface at the top, and the adjustment interface has a conical structure.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In this hydraulically braked cable laying frame for submarine cable laying, by setting a linkage structure between the speed change component and the braking system, the low-speed rotation of the cable laying frame body is converted into the high-speed rotation of the brake disc by using a large gear to drive a small gear. This not only provides a sufficient airflow velocity basis for air cooling, but also enhances the braking effect through torque amplification, which is conducive to improving braking response capability and heat dissipation start-up conditions, thereby effectively alleviating the temperature rise problem caused by frequent braking.

[0020] 2. In this hydraulic braking cable laying frame for submarine cable laying, a cross-air duct structure is formed by setting circumferentially distributed elastic telescopic rods between the two brake discs and optimizing their layout. Combined with the hook-shaped air guide structure on the edge of the brake disc, the external airflow is efficiently gathered and directed into the brake disc interlayer during high-speed rotation, realizing graded and zoned active air cooling. This is beneficial to improve the heat dissipation coverage and airflow utilization efficiency, reduce the blind spots of traditional direct-blowing heat dissipation, and significantly enhance the cooling capacity under continuous braking.

[0021] 3. In this hydraulic braking cable laying frame for submarine cable laying, a liquid cooling component is installed in the air outlet area, and the axial compression displacement of the brake disc during braking drives the liquid circuit interface to slide along the wedge-shaped surface. This enables the coolant flow rate to be automatically adjusted according to the braking force. That is, the greater the braking force, the larger the coolant flow cross section and the stronger the heat dissipation. This is beneficial for providing on-demand enhanced passive cooling during low-speed or stationary braking, compensating for insufficient air cooling, and thus comprehensively improving the thermal stability and safety of the braking system under all working conditions. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the transmission component of the present invention;

[0024] Figure 3 This is a schematic diagram of the braking assembly of the present invention;

[0025] Figure 4 This is a schematic diagram of the brake disc body of the present invention;

[0026] Figure 5 This is a front view of the brake disc body of the present invention;

[0027] Figure 6 This is a schematic diagram of the air duct of the present invention;

[0028] Figure 7 This is a schematic diagram of the air guide structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the air guiding structure of the present invention;

[0030] Figure 9 This is a cross-sectional view of the brake disc body of the present invention;

[0031] Figure 10 This is a schematic diagram of the structure of the adjusting head of the present invention;

[0032] Figure 11 This is a partial cross-sectional view of the brake disc body of the present invention.

[0033] The meanings of the labels in the diagram are as follows:

[0034] 1. Support frame; 2. Cable reel body; 3. Rotating rod; 4. Gear shift assembly; 5. Braking assembly; 6. Hydraulic caliper device; 7. Air-cooled assembly; 8. Liquid-cooled assembly;

[0035] 41. Large gear; 42. Support rod; 43. Small gear;

[0036] 51. Mounting rod; 52. Mounting slot; 53. Connecting rod; 54. Brake disc body; 55. First elastic telescopic rod; 56. Second elastic telescopic rod; 57. Ventilation slot;

[0037] 71. Air guide structure; 72. Air inlet duct; 73. First air duct; 74. Second air duct;

[0038] 711. First guide vane; 712. Connecting plate; 713. Arc-shaped plate; 714. Second guide vane; 715. Groove;

[0039] 81. Cooling tank; 82. Inlet pipe; 83. Outlet pipe; 84. Adjusting head; 85. Connecting joint; 86. Pumping pipe; 87. Return pipe; 88. Adjusting interface. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Existing hydraulically braked cable laying frames require frequent braking during submarine cable laying, which can lead to a sharp increase in brake disc temperature. This can not only cause brake failure but also accelerate component aging, affecting the safety and reliability of the equipment.

[0042] Therefore, this invention provides a hydraulically braked cable laying frame for submarine cable laying. See [link to relevant documentation]. Figures 1-3As shown, it includes a wire feeding frame and a matching braking system. The wire feeding frame is equipped with a speed change assembly 4, which is connected to the braking system. The wire feeding frame includes a support 1, a rotating rod 3 is rotatably mounted on the support 1, and a wire feeding frame body 2 is mounted on the rotating rod 3. The braking system includes a braking assembly 5 and a hydraulic caliper device 6 mounted thereon. The braking assembly 5 is equipped with an air-cooling assembly 7. The braking assembly 5 includes a mounting rod 51 and two brake disc bodies 54 arranged opposite to each other.

[0043] During operation, the submarine cable is wound around the cable-laying frame body 2. When the cable-laying frame body 2 lays out the submarine cable, it drives the rotating rod 3 to rotate. The rotating rod 3, through the speed-changing component 4, drives the braking component 5 to rotate at high speed. The high-speed rotating braking component 5 is cooled by the air-cooling component 7. When braking is required, the braking component 5 is braked by the hydraulic caliper device 6. The hydraulic caliper device 6 is a mature existing technology and will not be described in detail here.

[0044] For details, see Figures 1-2 As shown, since the rotation speed of the cable laying frame 2 is not too fast during cable laying, the traditional method of directly mounting the brake disc on the cable laying frame 2 cannot create an air duct for active cooling and heat dissipation through its own rotation. Therefore, this invention uses the gear transmission principle to amplify the rotation speed and places the brake disc on a gear with a smaller number of teeth to achieve high-speed rotation of the brake disc. At the same time, according to torque analysis, when braking, since the brake disc is large and the gear connected to the brake disc has a smaller number of teeth, it can also amplify the braking effect.

[0045] Specifically, the transmission assembly 4 includes a large gear 41 fixed on the rotating rod 3, which meshes with a small gear 43. The small gear 43 is fixed on a support rod 42, which is rotatably mounted on the bracket 1. The support rod 42 is fixedly connected to the mounting rod 51. The number of teeth and outer diameter of the small gear 43 are much smaller than those of the large gear 41.

[0046] During operation, the laying of the submarine cable drives the rotating rod 3 to rotate, which in turn amplifies the rotational speed through the gear ratio of the large gear 41 and the small gear 43. This causes the mounting rod 51, which is connected to the support rod 42, to rotate at a high speed, thereby driving the brake disc body 54 to rotate at high speed. This provides the rotational speed basis for the next step of designing the air duct to actively cool down and dissipate heat after multiple consecutive braking operations.

[0047] It should be emphasized that in this invention, "brake disc" is merely a pronoun and does not refer to the automotive or braking fields, but rather to a braking system in the field of submarine cable laying frames.

[0048] Further, see Figures 3-5As shown, to facilitate the installation of the brake discs and to allow for axial elastic expansion and contraction after installation, compared to traditional fixed brake discs, thus preparing for the subsequent liquid cooling circulation speed; secondly, compared to the traditional method, the two brake discs can also form an air duct structure after docking, therefore, the present invention uses a braking assembly 5 including a mounting rod 51 and two brake disc bodies 54 arranged opposite to each other. The two brake disc bodies 54 are connected by a plurality of second elastic telescopic rods 56 arranged circumferentially. The brake disc body 54 is also provided with a corresponding second elastic telescopic rod 56. The first elastic telescopic rod 55 is used to connect the brake disc body 54 to the mounting rod 51. The mounting rod 51 has several mounting slots 52 that correspond one-to-one with the first elastic telescopic rod 55 on one end away from the support rod 42. A connecting rod 53 is fixed in the mounting slot 52. The brake disc body 54 is slidably connected to the connecting rod 53 through the first elastic telescopic rod 55. A ventilation slot 57 is provided in the mounting rod 51 between two adjacent first elastic telescopic rods 55. The second elastic telescopic rod 56 and the first elastic telescopic rod 55 are both lateral elastic telescopic structures.

[0049] Secondly, the elastic telescopic rods in this invention all have built-in springs or elastic plates, that is, one rod is fixed, and the other telescopic end is connected to one of the rods through a spring or elastic plate, so that it has the effect of elastic telescopic movement.

[0050] Most importantly, the layout of the second flexible telescopic pole 56 is optimized compared to the traditional layout. Specifically, every three adjacent second flexible telescopic poles 56 and three symmetrically adjacent second flexible telescopic poles 56 form a cross-wind duct structure, which is as follows: Figure 6 As shown, several second elastic telescopic rods 56 form several sets of air duct structures;

[0051] The air-cooled assembly 7 includes an air-guiding structure 71, which is respectively located on both sides of the top and the middle of the bottom of the cross-airflow direction; see also Figures 5-8 As shown, the air guide structure 71 has a hook-shaped structure as a whole, and the head and tail of the hook-shaped structure are parallel wedge-shaped surfaces.

[0052] Specifically, the air guide structure 71 includes a first guide plate 711 fixed at the top of the second elastic telescopic rod 56 and located at the edge of the brake disc body 54. The first guide plate 711 has a wedge-shaped structure. A connecting plate 712 is fixed at the top of the wedge-shaped structure of the first guide plate 711. The connecting plate 712 is on the same straight line as the second elastic telescopic rod 56. An arc-shaped plate 713 is fixed at the top of the connecting plate 712. A second guide plate 714 is fixed at the other end of the arc-shaped plate 713. In addition, the inclined surface of the first guide plate 711 is parallel to the second guide plate 714, and a groove 715 is opened on the inner surface of the hook-shaped structure of the air guide structure 71.

[0053] When working, first refer to Figure 8 As shown, when the brake disc body 54 is driven to rotate at high speed by the transmission assembly 4, the air enters the hook-shaped structure through the second guide plate 714 and the first guide plate 711. The opening of the groove 715 in the hook-shaped structure can further improve the air gathering effect. The air entering the hook-shaped structure is reflected by the connecting plate 712 and the arc plate 713, and finally blows towards the interlayer between the two brake disc bodies 54, that is, enters the area of ​​the first air duct 73. Then refer to Figure 6 As shown, the air entering the first air duct 73 area is blown out through the opposite second air duct 74; similarly, the second air duct 74 adjacent to the first air duct 73 is blown out by the air blown in by the opposite first air duct 73, that is, the air guided in by the opposite air guide structure 71. The six second elastic telescopic rods 56 and the first elastic telescopic rods 55, together with the ventilation slots 57 opened on the mounting rod 51, form a cross air direction. This can divide the brake disc body 54 into several areas for graded heat dissipation, avoiding the traditional flooding direct blowing. Graded and area-based heat dissipation can improve heat dissipation efficiency and actively introduce external air into the interlayer of the brake disc body 54 for active heat dissipation. The multiple air duct structure, that is, multiple sets of cross air ducts, can cover a large area of ​​the entire interlayer of the brake disc body 54, reduce heat dissipation blind spots, and accelerate the air circulation through the air ducts formed by the layout of the second elastic telescopic rods 56 and the first elastic telescopic rods 55.

[0054] Based on this, see Figures 3-5 and Figure 11 As shown, in order to further increase the air intake of the first air duct 73, the present invention adopts an air-cooling component 7 that also includes an air intake slot 72. The cross-flow air duct structure is divided into a first air duct 73 and a second air duct 74. The first air duct 73 is an air intake duct, and the second air duct 74 is an air outlet duct. An air intake slot 72 is provided on the brake disc body 54 in the area of ​​the first air duct 73. The cross-section of the air intake slot 72 is a conical structure, and the narrower air outlet in the conical structure of the air intake slot 72 is opened towards the interlayer between the two brake disc bodies 54.

[0055] During operation, when the brake disc body 54 rotates at high speed, in addition to the hook-shaped structure of the air guide structure 71 drawing air into the interlayer, the air inlet slot 72 in the first air duct 73 area can also assist in drawing air to increase the air volume. Figure 11 It can be seen that its interior has a conical structure, which means that the wind can be further accelerated and introduced into the interlayer through the inclined surface of the conical structure. Moreover, the opening of the air inlet slot 72 can also increase the friction when the hydraulic caliper device 6 is braking.

[0056] Furthermore, see Figure 2 and Figures 9-10As shown, since the airflow velocity in the second air duct 74 area is lower than that in the first air duct 73, the heat dissipation effect in this area is poor. Therefore, a passive heat dissipation scheme is added, which, combined with the elastic extension and retraction between the two brake disc bodies 54, improves the cooling effect by increasing the refrigerant circulation efficiency when the hydraulic caliper device 6 is engaged. This means that the greater the braking force of the hydraulic caliper device 6, the higher the required cooling efficiency. Therefore, this invention also uses a liquid cooling component 8 on the mounting rod 51. The liquid cooling component 8 includes components formed on the brake disc body 54. The cooling tank 81, located in the second air duct 74 area, has an inlet pipe 82 and an outlet pipe 83 connected to its bottom along its radially inner side. An adjusting head 84 and a connecting head 85 are elastically and telescopically mounted on the mounting rod 51 in the direction directly opposite the inlet pipe 82 and the outlet pipe 83, respectively. One end of the mounting rod 51 is connected to a pumping pipe 86, which is rotatably connected to the mounting rod 51. The other end of the mounting rod 51 is connected to a return pipe 87 via a support rod 42, which is rotatably connected to the support rod 42. The pumping pipe 86 and the return pipe 87 are respectively connected to corresponding refrigerant circulation pumps.

[0057] Secondly, both the adjusting head 84 and the connecting head 85 are wedge-shaped structures. The outlet pipe 83 is connected to the return pipe 87 through the connecting head 85, and the inlet pipe 82 is connected to the pumping pipe 86 through the adjusting head 84. The bottoms of the inlet pipe 82 and the outlet pipe 83 are both inclined surfaces, and the inner diameter of the top opening of the connecting head 85 remains constant. The top of the adjusting head 84 is provided with an adjusting interface 88, which has a conical structure.

[0058] It should be noted that, in order to prevent refrigerant leakage, the connection between the brake disc body 54 and the mounting rod 51, and the connection between the adjusting head 84 and the mounting rod 51 are all sealed.

[0059] During operation, when the hydraulic caliper device 6 applies the brakes, its working principle is common knowledge. The hydraulic caliper device 6 clamps the brake disc body 54 via hydraulic drive, causing the two brake disc bodies 54 to move closer together. The greater the braking force, the closer the brake disc bodies 54 move. In other words, the closer the brake disc bodies 54 are, the greater the braking force of the hydraulic caliper device 6. Consequently, the brake disc bodies 54 generate more heat during braking, requiring increased heat dissipation. After multiple consecutive braking maneuvers and increased braking force, the rotational speed of the brake disc bodies 54 is already very low. Active cooling through the air duct design is insufficient, so passive cooling is used to compensate. That is, when the brake disc bodies 54 move closer together, they cause the inlet pipe 82 to slide towards the inclined surface of the adjusting head 84, thereby... Figure 10As can be seen, the opening size of the adjusting port 88 increases with the height of the slope, so the amount of refrigerant pumped is also greater. Therefore, the refrigerant in the cooling tank 81 will circulate faster and flow out from the outlet pipe 83 to carry away the heat. When the hydraulic caliper device 6 reduces the braking force, the inlet pipe 82 will slide down the slope of the adjusting head 84 under the elastic extension and contraction of the second elastic telescopic rod 56 and the first elastic telescopic rod 55, reducing the amount of refrigerant pumped.

[0060] It should be added that, through Figure 4 It can be seen that the elastic extension ends of the second elastic telescopic rod 56 and the first elastic telescopic rod 55 are fixed on the brake disc body 54 on the side away from the pinion 43. That is to say, the two brake disc bodies 54 are close to each other. In fact, the brake disc body 54 on the side away from the pinion 43 moves towards the other brake disc body 54. Therefore, it slides along the inclined surface of the adjusting head 84 on the inlet pipe 82. Secondly, in order to facilitate the installation of the brake disc body 54, the inclined surface of the adjusting head 84 is inclined upward along the installation direction of the brake disc body 54. The adjusting head 84 and the coupling 85 have the same structure, as mentioned above, except that the top opening is different. That is to say, when the brake disc body 54 is pushed and installed on the mounting rod 51 through the connecting rod 53, it will squeeze the adjusting head 84 and the coupling 85 into the mounting rod 51. Afterwards, when the brake disc body 54 reaches the designated position, the adjusting head 84 and the coupling 85 will pop out and connect with the corresponding inlet pipe 82 and outlet pipe 83.

[0061] In summary, by employing both active and passive heat dissipation, the problem of brake disc overheating during repeated continuous and forceful braking can be improved, and the shortcomings of insufficient air intake in the traditional brake disc's own air duct design can be compensated for. This effectively solves the problem that existing hydraulic brake cable laying frames, due to frequent braking during submarine cable laying, are prone to rapid temperature increases in the brake discs, which may not only lead to brake failure but also accelerate component aging and affect the safety and reliability of the equipment.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulically braked cable laying frame for submarine cable laying, comprising a cable laying frame and a matching braking system, characterized in that: The braking system includes a braking assembly (5) and a hydraulic caliper device (6) disposed thereon, and an air-cooling assembly (7) is disposed on the braking assembly (5). The braking assembly (5) includes a mounting rod (51) and two brake disc bodies (54) arranged opposite to each other. The two brake disc bodies (54) are connected by a number of second elastic telescopic rods (56) arranged in a circumferential manner. The brake disc body (54) is also provided with a first elastic telescopic rod (55) corresponding to the second elastic telescopic rod (56). The brake disc body (54) is connected to the mounting rod (51) through the first elastic telescopic rod (55). Each pair of three adjacent second elastic telescopic rods (56) and three adjacent second elastic telescopic rods (56) in the symmetrical direction form a set of wind duct structures with cross wind directions, and a number of second elastic telescopic rods (56) form a number of wind duct structures. The air-cooled assembly (7) includes an air guide structure (71), which is respectively located on the top two sides and the bottom center of the cross air direction; The air guide structure (71) is hook-shaped, and the head and tail of the hook-shaped structure are parallel wedge-shaped surfaces. The wire feeding frame includes a support (1), and a speed change assembly (4) is provided on the wire feeding frame. The wire feeding frame is connected to the braking system through the speed change assembly (4). The speed change assembly (4) includes a large gear (41) fixed on a rotating rod (3). The large gear (41) meshes with a small gear (43). The small gear (43) is fixed on a support rod (42). The support rod (42) is rotatably mounted on the support (1). The support rod (42) is fixedly connected to the mounting rod (51). The number of teeth and outer diameter of the small gear (43) are much smaller than the number of teeth and outer diameter of the large gear (41).

2. The hydraulically braked cable laying frame for submarine cable laying according to claim 1, characterized in that: A rotating rod (3) is rotatably mounted on the bracket (1), and a wire feeding frame body (2) is mounted on the rotating rod (3).

3. The hydraulically braked cable laying frame for submarine cable laying according to claim 2, characterized in that: The mounting rod (51) has several mounting slots (52) on one end away from the support rod (42) that correspond one-to-one with the first elastic telescopic rod (55). A connecting rod (53) is fixedly installed in the mounting slot (52). The brake disc body (54) is slidably connected to the connecting rod (53) through the first elastic telescopic rod (55). The mounting rod (51) has a ventilation slot (57) located between two adjacent first elastic telescopic rods (55).

4. The hydraulically braked cable laying frame for submarine cable laying according to claim 3, characterized in that: Both the second elastic telescopic rod (56) and the first elastic telescopic rod (55) are lateral elastic telescopic structures.

5. The hydraulically braked cable laying frame for submarine cable laying according to claim 4, characterized in that: The air guiding structure (71) includes a first guide plate (711) fixed at the top of the second elastic telescopic rod (56) and located at the edge of the brake disc body (54). The first guide plate (711) has a wedge-shaped structure. A connecting plate (712) is fixed at the top of the wedge-shaped structure of the first guide plate (711). The connecting plate (712) and the second elastic telescopic rod (56) are on the same straight line. An arc-shaped plate (713) is fixed at the top of the connecting plate (712). A second guide plate (714) is fixed at the other end of the arc-shaped plate (713).

6. The hydraulically braked cable laying frame for submarine cable laying according to claim 5, characterized in that: The inclined surface of the first guide plate (711) is parallel to the second guide plate (714), and the inner surface of the hook-shaped structure of the air guide structure (71) is provided with a groove (715).

7. The hydraulically braked cable laying frame for submarine cable laying according to claim 6, characterized in that: The air-cooled assembly (7) also includes an air inlet slot (72). The cross-flow duct structure is divided into a first air duct (73) and a second air duct (74). The first air duct (73) is an air inlet duct, and the second air duct (74) is an air outlet duct. An air inlet slot (72) is provided on the brake disc body (54) in the area of ​​the first air duct (73). The cross-section of the air inlet slot (72) is conical. The narrower end of the two air inlets of the conical structure of the air inlet slot (72) is opened towards the interlayer between the two brake disc bodies (54) compared to the other end.

8. The hydraulically braked cable laying frame for submarine cable laying according to claim 7, characterized in that: The mounting rod (51) is also provided with a liquid cooling assembly (8), which includes a cooling groove (81) located in the second air duct (74) area inside the brake disc body (54). The bottom of the cooling groove (81) is connected to an inlet pipe (82) and an outlet pipe (83) respectively. An adjusting head (84) and a connecting head (85) are elastically telescopically provided on the mounting rod (51) in the direction opposite to the inlet pipe (82) and the outlet pipe (83). One end of the mounting rod (51) is connected to a pumping pipe (86), which is rotatably connected to the mounting rod (51). The other end of the mounting rod (51) is connected to a return pipe (87) through a support rod (42), which is rotatably connected to the support rod (42). The pumping pipe (86) and the return pipe (87) are respectively connected to the corresponding refrigerant circulation pump.

9. The hydraulically braked cable laying frame for submarine cable laying according to claim 8, characterized in that: The adjusting head (84) and the connecting head (85) are both wedge-shaped structures. The outlet pipe (83) is connected to the return pipe (87) through the connecting head (85). The inlet pipe (82) is connected to the pumping pipe (86) through the adjusting head (84). The bottom of the inlet pipe (82) and the outlet pipe (83) are both inclined surfaces. The inner diameter of the top opening of the connecting head (85) remains constant. The adjusting head (84) has an adjusting interface (88) at the top, and the adjusting interface (88) has a conical structure.

10. The hydraulically braked cable laying frame for submarine cable laying according to claim 9, characterized in that: The connection between the brake disc body (54) and the mounting rod (51) and the connection between the adjusting head (84) and the mounting rod (51) are all sealed.

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