Cable fixing support installed on main body frame structure of large-scale unmanned underwater vehicle

Abstract

The utility model belongs to the technical field of large-scale unmanned underwater vehicles, and discloses a cable fixing support installed on a main body frame structure of a large-scale unmanned underwater vehicle. Comprising a movable cable hoop and a fixed support which are connected through a clamping jaw mechanism. The cable laying work is divided into fixation of multiple groups of cables and fixation between the cable groups and the UUV, so that the cable laying difficulty in the cabin body of the UUV is reduced; a cable fixing support is additionally arranged by drilling holes in a required position on a UUV main body structure at any time, so that redundancy is increased for design, manufacture and change, and the influence of local stress concentration brought by welding on the strength of the UUV main body structure is reduced; through movement of the cam locking mechanism, occlusion of the cable hoop and the fixing support is completed, and rapid loosening is achieved through the pull rope. The holes in the nylon tape are matched with the spring limiting mechanism, so that cables with different diameters can be bound; by changing the thickness of the rubber adjusting base plate, the influence of the deviation of the processing hole site on the main body frame on the cable fixing bracket is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of large underwater unmanned submersibles, in particular to a cable fixing bracket installed on the main frame structure of a large underwater unmanned submersible. Background Art

[0002] At present, due to the large number of devices in the UUV, most of the internal space is reserved for carrying devices and loads, leaving very little space for cable laying and most of it is difficult to effectively reach. In addition, some UUV products did not consider the cable layout in time at the initial design stage, resulting in chaotic cable distribution during the cable laying stage, increasing the work difficulty of construction personnel.

[0003] For the traditional cable laying and fixing methods, most use cable ties. Although this method is simple and cable ties are easy to purchase, it only solves the problem that a single group of cables is relatively light in weight and may float with the water flow, which may cause displacement of the UUV cable interface and then lead to poor contact. The problem that multiple groups of cables bundled together may also displace under a large impact has not been solved. In this case, multiple groups of cables will also affect the internal devices of the UUV under the action of inertia. The cable tie only fixes the cable itself and does not limit the relative displacement between the cable and the UUV. The second commonly used method is mainly to weld a cable mounting plate in the frame. After laying the cable, the cable is fixed on the mounting plate. This method solves the problem of the relative displacement between the cable and the UUV, but it is necessary to consider the spacing, position, etc. of the cable mounting plate at the initial design stage, increasing the design difficulty. At the same time, when there are many cable groups and the operating space is limited, it is very difficult to quickly complete the laying work, increasing the assembly time. Therefore, the above traditional cable fixing methods cannot perfectly meet the requirements of UUV cable laying, and an additional cable fixing bracket needs to be designed to complete the above work requirements.

[0004] Based on this, it is very necessary to design a cable fixing device that is convenient for workers to install, can increase cable fixing points at any time, and can complete the laying work in a narrow space. Therefore, the utility model proposes a cable fixing bracket installed on the main frame structure of the UUV, and the fixing of the cable bracket to the main frame of the UUV solves the problems found in the actual work above. Summary of the Utility Model

[0005] The technical problem to be solved by the present utility model is: to solve the problem of quickly completing the cable fixing and installation in a narrow working space, and a cable fixing bracket installed on the main frame structure of a UUV is designed and provided to achieve the above functions. The brackets of the present utility model are used in combination, that is, each bracket is only responsible for fixing the cable within a certain range, and when multiple brackets are used in cooperation, the fixing of the entire length of the cable can be completed. A cable bracket that can be fixed on the internal main frame structure to improve the cable laying efficiency.

[0006] The technical solution of the cable fixing bracket of the present utility model is as follows: A cable fixing bracket installed on the main frame structure of a large underwater unmanned submersible includes a movable cable hoop and a fixed bracket, and the two are connected by a claw mechanism.

[0007] The movable cable hoop includes a nylon belt 4, a mounting rod 2, a reference plate, a spring limiting mechanism 5 and a mating pull rod 3; the mounting rod 2 is fixedly installed on the reference plate and is provided with a through groove; the through groove and the mounting rod 2 are located on both sides of the reference plate; the spring limiting mechanism 5 and the mating pull rod 3 are fixedly installed below the reference plate; the spring limiting mechanism 5 is located around the through groove; one end of the nylon belt 4 has a through hole, the nylon belt mounting rod 2 passes through the through hole of the nylon belt 4 and is fixed to the reference plate, and the other end passes through the cable 1 and then passes through the through groove and is fixed by the spring limiting mechanism 5.

[0008] The nylon belt 4 is provided with a plurality of hole positions for fixing by the spring limiting mechanism 5; the nylon belt 4 is made of a flexible material and is in direct contact with the cable 1.

[0009] Ear hooks 6 are further provided on both sides of the reference plate, and a rope passes through the ear hooks 6 to drag the movable cable hoop to move along the axial direction of the cable until it reaches a preset position, and finally the tightening action of the nylon belt 4 is completed; the rope passes through the ear hooks 6 to pull the movable cable hoop and lock it on the fixed bracket.

[0010] The fixed bracket includes a mounting plate 11 and a cam locking mechanism 8; the cam locking mechanism 8 is fixed on the mounting plate 11, and one end of the mounting plate 11 is fixed on a large underwater unmanned submersible; the cam locking mechanism 8 includes a cam 7, an internal trigger 12, a leaf spring 13, a cam locking mechanism box 14 and a helical spring 15;

[0011] The cam locking mechanism 8 is equipped with two sets of internal triggers 12 and two sets of leaf springs 13 used in cooperation therewith; one set of internal trigger 12 and leaf spring 13 are located below the cam 7, and the other set of internal trigger 12 and leaf spring 13 are located on one side of the cam 7; one end of the internal trigger 12 is fixed to the cam locking mechanism box body 14 so as to rotate around the fixed point, and the other end is in a swinging state and always remains in a state of sliding on the cam; the leaf spring 13 is always in a compressed state, and the reaction force generated by it ensures that the internal trigger 12 continuously slides on the outer contour of the cam 7; one end of the helical spring 15 is connected to one side of the cam 7; when an external force given by the cooperating pull rod 3 is received, the cam 7 with a claw rotates, and the helical spring 15 connected to the cam 7 is elongated, converting kinetic energy into potential energy. The helical spring 15 is continuously stretched. When the cam 7 rotates to the designated position, the cooperating pull rod 3 slides to the bottom end of the guide groove of the cam locking mechanism box body 14, and the internal trigger 12 also slides to the groove position left by the cam; when the cam rebounds under the action of the pulling force of the helical spring 15, the internal trigger 12 will be firmly clamped in the groove of the cam 7 under the pressure of the leaf spring 13, preventing it from rebounding, triggering the mechanical limit in the working state of the cam, and the movable cable clamp is fixed; when the cable clamp needs to be removed, it is pulled by the pull rope 9 on the internal trigger, and the internal trigger 12 is briefly separated from the cam 7. The cam 7 will rebound under the action of the helical spring 15 converting potential energy into kinetic energy. In order to prevent the situation that the cam 7 rebounds excessively under the action of inertia and the claw cannot be used, the side trigger 12 and the leaf spring 13 need to limit the starting position of the cam locking mechanism. When the above actions are completed, the cable clamp is detached.

[0012] The fixed bracket further includes a rubber adjusting cushion plate 10; the rubber adjusting cushion plate 10 is located between the mounting plate 11 and the cam locking mechanism 8, and the relative distance between the mounting plate 11 and the cam locking mechanism 8 is adjusted by changing the thickness of the rubber cushion plate.

[0013] Advantages of the present utility model: The movable cable clamp is used in cooperation with the fixed bracket, and the cable laying work is decomposed into two steps: fixing multiple groups of cables and fixing the cable groups to the UUV. This effectively reduces the difficulty of cable laying in the UUV cabin. During the cable laying process, cable fixing brackets can be drilled and added at the required positions on the UUV main structure at any time, increasing redundancy for later design and manufacturing changes, and also reducing the impact of local stress concentration caused by welding on the strength of the UUV main structure. In a relatively narrow space, the entire cable clamp can be pulled through the ear hook to complete the cable threading movement, and the ear hook can be pressed down to complete the cooperation between the cable clamp and the fixed bracket, saving space and improving assembly efficiency. Through the movement of the cam locking mechanism, the cable clamp and the fixed bracket can be quickly engaged, and can also be quickly released by pulling the rope. It has a simple structure and reliable performance, and can adapt to the changing underwater environment requirements. By cooperating the hole positions on the nylon belt with the spring limiting mechanism, cables with different diameters can be efficiently bound. By changing the thickness of the rubber adjusting pad, the influence of hole position deviation during the machining of the main frame on the cable fixing bracket can be effectively avoided, ensuring that each cable fixing bracket is basically in the same plane and enabling the cable to transition smoothly. The utility model technology has the characteristics of ingenious conception, reliable operation, convenient use, and adaptation to the marine working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the structure of the movable cable clamp;

[0015] Figure 2 Schematic diagram of the structure of the fixed bracket;

[0016] Figure 3 Overall schematic diagram of the structure of the cable fixing bracket;

[0017] Figure 4 Diagram of the docking process of the cam mechanism claw and the mating pull rod;

[0018] Figure 5 Internal schematic diagram of the cam locking mechanism.

[0019] 1 - Cable schematic, 2 - Nylon belt mounting rod, 3 - Mating pull rod, 4 - Nylon belt, 5 - Spring limiting mechanism, 6 - Ear hook; 7 - Cam (belonging to the cam locking mechanism), 8 - Cam locking mechanism, 9 - Pull rope (belonging to the cam locking mechanism), 10 - Rubber adjustment pad, 11 - Mounting plate DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The cable bracket of the present utility model is divided into two major parts: one is the movable cable clamp, and the other is the fixed bracket. The two are connected through a claw mechanism.

[0021] The movable cable clamp designed by the present utility model consists of the following components: a nylon belt, a nylon belt mounting rod, a reference plate, a spring limiting mechanism, and a cooperating pull rod. Among them, the nylon belt is a flexible material that directly contacts the cable and is not likely to damage the cable surface. One end of the nylon belt passes through the nylon belt mounting rod, and the mounting rod is then inserted into the corresponding hole position on the reference plate and fixed with a nut to complete its fixation with the nylon belt. The other end of the nylon belt is provided with a through hole. The nylon belt passes through the through groove on the reference plate to the lower part of the reference plate, and the through hole on it cooperates with the spring limiting mechanism below the reference plate to complete the fixation of both ends of the nylon belt, that is, the fixation of the cable on the movable cable clamp is completed. Among them, when the space for installing the cable clamp is small and both hands cannot be used for operation, the use length of the nylon belt can be appropriately relaxed first, and then through the ear hooks on the reference plate, the cable clamp can be dragged in the axial direction of the cable with a rope until it reaches the ideal position, and finally the tightening action of the nylon belt is completed. The cooperating pull rod is welded to the reference plate and is mainly used to cooperate with the cam locking mechanism on the fixed bracket. Under the action of force, the cooperating pull rod presses down the claw on the cam locking mechanism to lock it on the fixed bracket. Among them, when the operation space is large enough, the cable clamp can be manually pressed onto the fixed bracket; when the operation space is insufficient, the cable clamp can also be pulled through the ear hooks on both sides of the reference plate with a rope to complete the cooperation action.

[0022] The fixed bracket designed by the present utility model consists of a mounting plate, a rubber adjusting cushion plate, and a cam locking mechanism. The fixed bracket is fitted with the threaded holes drilled in the frame inside the UUV through the bolt through holes on the mounting plate to complete the binding of the fixed bracket with the entire UUV. The rubber adjusting cushion plate is located between the mounting plate and the cam locking mechanism, and its main function is to adjust the relative distance between the mounting plate and the cam locking mechanism by changing the thickness of the rubber cushion plate to reduce the influence caused by the assembly error between each fixed bracket during cable laying. The cam locking mechanism is a key component of the fixed bracket and mainly plays the role of connecting the movable cable clamp. It is docked with the cooperating pull rod through its claw to complete the fixation of the movable cable clamp. The main principle of the cam locking mechanism is as follows: after receiving the external force from the cooperating pull rod, the internal cam with a claw rotates, and the spring connected to the cam converts kinetic energy into potential energy, and the spring is continuously stretched. When the cam rotates to the specified position, the internal trigger slides into the groove on the cam to trigger mechanical limit and lock the cam. At this time, the movable cable clamp is fixed; when the cable clamp needs to be removed, it is pulled by the pull rope on the internal trigger to separate the trigger from the cam. At this time, the spring on the cam converts potential energy back into kinetic energy, driving the cam and the claw back to the original position, and the claw is released, and the cable clamp is detached.

[0023] The utility model can be used in combination according to different cable passing-through lengths of the cabin. The cable fixing bracket is divided into two parts, namely a movable cable hoop and a fixing bracket. Before use, one end of the nylon strap is passed through the nylon strap mounting rod, and then the nylon strap is fixed on the reference plate. Subsequently, multiple groups of cables are bundled. The other end of the nylon strap passes through the spring limiting mechanism to prevent the cable hoop from moving on the cable, thus completing the fixation of the cable group on the cable hoop. In addition, when the construction space where the fixing bracket is located is small, the length of the nylon strap can be appropriately lengthened first to enable the cable hoop to slide in the axial direction of the cable, and then the cable hoop is pulled through the ear hook on the reference plate and fixed at an appropriate position. Thus, the fixation of the cable and the cable hoop is completed.

[0024] After that, the cable hoop is pressed onto the cam locking mechanism of the fixing bracket through the ear hooks on both sides. The cam on the cam locking mechanism rotates under the action of the cooperating pull rod. When it reaches the appropriate position, the cam is self-locked, and the cooperating pull rod is restricted on the cam locking mechanism. At this time, the fixation of the cable on the UUV main body frame is completed. Each cable fixing bracket can be finely adjusted by changing the thickness of the rubber adjusting cushion plate to prevent the cable from being bent and affecting the transmission. When the cable needs to be removed, the pull rope on the cam locking mechanism can be pulled. At this time, the cam returns to its original position, and the cooperating pull rod will be ejected, and then the cable and the cable hoop can be unfastened. In addition to the above embodiments, the utility model can also have other implementation manners. All technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the utility model.

Claims

1. A cable fixing bracket installed on the main frame structure of a large underwater unmanned submersible, characterized in that, The cable fixing bracket includes a movable cable hoop and a fixing bracket, and the two are connected by a claw mechanism.

2. The cable fixing bracket installed on the main frame structure of a large underwater unmanned submersible according to claim 1, characterized in that, The movable cable hoop includes a nylon belt (4), a mounting rod (2), a reference plate, a spring limiting mechanism (5) and a mating pull rod (3); the mounting rod (2) is fixedly installed on the reference plate and is provided with a through groove; the through groove and the mounting rod (2) are located on both sides of the reference plate; the spring limiting mechanism (5) and the mating pull rod (3) are fixedly installed below the reference plate; the spring limiting mechanism (5) is located around the through groove; one end of the nylon belt (4) has a through hole, and the nylon belt mounting rod (2) passes through the through hole of the nylon belt (4) and is fixed to the reference plate, and the other end passes through the cable (1) and then passes through the through groove and is fixed by the spring limiting mechanism (5).

3. The cable fixing bracket installed on the main frame structure of a large underwater unmanned submersible according to claim 2, characterized in that, A plurality of holes are provided on the nylon belt (4) for fixing by the spring limiting mechanism (5); the nylon belt (4) is made of a flexible material and is in direct contact with the cable (1).

4. The cable fixing bracket installed on the main frame structure of a large underwater unmanned submersible according to claim 2 or 3, characterized in that Ear hooks (6) are further provided on both side surfaces of the reference plate. A rope passes through the ear hooks (6) to drag the movable cable hoop to move along the axial direction of the cable until it reaches a preset position, and finally the tightening action of the nylon belt (4) is completed; the rope passes through the ear hooks (6) to pull the movable cable hoop and lock it on the fixing bracket.

5. The cable fixing bracket installed on the main frame structure of a large underwater unmanned submersible according to claim 1, 2 or 3, characterized in that, The fixing bracket includes a mounting plate (11) and a cam locking mechanism (8); the cam locking mechanism (8) is fixed on the mounting plate (11), and one end of the mounting plate (11) is fixed on a large underwater unmanned submersible; the cam locking mechanism (8) includes a cam (7), an internal trigger (12), a leaf spring (13), a cam locking mechanism housing (14) and a helical spring (15). The cam locking mechanism (8) is equipped with two sets of internal triggers (12) and two sets of leaf springs (13) used in cooperation therewith; one set of internal trigger (12) and leaf spring (13) is located below the cam (7), and the other set of internal trigger (12) and leaf spring (13) is located on one side of the cam (7); one end of the internal trigger (12) is fixed to the cam locking mechanism box body (14) so as to rotate around a fixed point, and the other end is in a swinging state and always remains in a state of sliding on the cam; the leaf spring (13) is always in a compressed state, and the reaction force generated by it ensures that the internal trigger (12) continuously slides on the outer contour of the cam (7); one end of the helical spring (15) is connected to one side of the cam (7); when an external force given by the cooperating pull rod (3) is received, the cam (7) with a claw rotates, and the helical spring (15) connected to the cam (7) is stretched, converting kinetic energy into potential energy. The helical spring (15) is continuously stretched. When the cam (7) rotates to a specified position, the cooperating pull rod (3) slides to the bottom end of the guide groove of the cam locking mechanism box body (14), and the internal trigger (12) also slides to the groove position left by the cam; when the cam rebounds under the action of the pulling force of the helical spring (15), the internal trigger (12) will be firmly clamped at the groove of the cam (7) under the pressure of the leaf spring (13), preventing it from rebounding, triggering the mechanical limit in the working state of the cam, and the movable cable clamp is fixed; when the cable clamp needs to be removed, it is pulled by the pull rope (9) on the internal trigger, and the internal trigger (12) is briefly separated from the cam (7). The cam (7) rebounds under the action of the helical spring (15) converting potential energy into kinetic energy. In order to prevent the situation that the cam (7) rebounds excessively and the claw cannot be used under the action of inertia, the side trigger (12) and the leaf spring (13) need to limit the starting position of the cam locking mechanism. After the above actions are completed, the cable clamp is disengaged.

6. The cable fixing bracket installed on the main frame structure of the large underwater unmanned submersible according to claim 4, characterized in that The fixed bracket includes a mounting plate (11) and a cam locking mechanism (8); the cam locking mechanism (8) is fixed on the mounting plate (11), and one end of the mounting plate (11) is fixed on a large underwater unmanned submersible; the cam locking mechanism (8) includes a cam (7), an internal trigger (12), a leaf spring (13), a cam locking mechanism box body (14) and a helical spring (15); The cam locking mechanism (8) is equipped with two sets of internal triggers (12) and two sets of leaf springs (13) used in cooperation therewith; one set of internal trigger (12) and leaf spring (13) are located below the cam (7), and the other set of internal trigger (12) and leaf spring (13) are located on one side of the cam (7); one end of the internal trigger (12) is fixed to the cam locking mechanism housing (14) so as to rotate around a fixed point, and the other end is in a swinging state and always remains in a state of sliding on the cam; the leaf spring (13) is always in a compressed state, and the reaction force generated by it ensures that the internal trigger (12) continuously slides on the outer contour of the cam (7); one end of the helical spring (15) is connected to one side of the cam (7); when an external force is applied by the cooperating pull rod (3), the cam (7) with a claw rotates, and the helical spring (15) connected to the cam (7) is stretched, converting kinetic energy into potential energy. The helical spring (15) is continuously stretched. When the cam (7) rotates to a specified position, the cooperating pull rod (3) slides to the bottom end of the guide groove of the cam locking mechanism housing (14), and the internal trigger (12) also slides to the groove position left by the cam; when the cam rebounds under the action of the pulling force of the helical spring (15), the internal trigger (12) will be firmly clamped in the groove of the cam (7) under the pressure of the leaf spring (13), preventing it from rebounding, triggering the mechanical limit in the working state of the cam, and the movable cable clamp is fixed; when the cable clamp needs to be removed, it is pulled by the pull rope (9) on the internal trigger, and the internal trigger (12) is separated from the cam (7) briefly. The cam (7) rebounds under the action of the helical spring (15) converting potential energy into kinetic energy. In order to prevent the cam (7) from rebounding excessively and the claw being unusable under the action of inertia, the side trigger (12) and the leaf spring (13) are required to limit the starting position of the cam locking mechanism. After the above actions are completed, the cable clamp is disengaged.

7. The cable fixing bracket installed on the main frame structure of a large underwater unmanned submersible, as claimed in claim 5, wherein The fixed bracket further includes a rubber adjusting cushion plate (10); the rubber adjusting cushion plate (10) is located between the mounting plate (11) and the cam locking mechanism (8), and the relative distance between the mounting plate (11) and the cam locking mechanism (8) is adjusted by changing the thickness of the rubber cushion plate.

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