High-reliability clamping device suitable for underwater mooring rope

Abstract

A high-reliability clamping device suitable for an underwater mooring rope comprises transverse and longitudinal rollers, a spring pin 4, a connecting rod block, a hydraulic oil cylinder, a guide wheel support 2, a guide wheel, the mooring rope, a clamping block 2, a large push rod, a small push rod, a spring 4, a guide shaft and a roller support. The two guide wheel supports are fixed on the whole machine, and the guide wheels penetrate through the guide shafts to be fixed between the two supports. The longitudinal roller and the transverse roller are fixedly mounted above the guide wheel bracket through a roller bracket; the cable bypasses the guide wheel and penetrates out from the middle of the longitudinal roller and the transverse roller; the spring pins 3 and 4 are respectively connected with the clamping blocks 1 and 2 through screws, and are pressed and fixed on the two guide wheel brackets through the springs 3 and 4; the large push rod and the small push rod penetrate through the connecting rod block, and two ends of the large push rod are connected with spring pins 1 and 2 which are respectively pressed and fixed through springs 1 and 2; the center of the small push rod is connected with the hydraulic cylinder; the bottom of the hydraulic oil cylinder is fixed to the guide wheel support. The cable is prevented from being snapped under the working condition of large tension, and the cable is prevented from being abraded in all directions.

Description

Technical Field

[0001] The present invention relates to a highly reliable clamping device applicable to underwater mooring cables and belongs to the field of deep - sea underwater technical equipment. Background Art

[0002] Deep - sea underwater technical equipment refers to the technologies and equipment used for the investigation, exploration, exploitation and utilization of deep - sea environments and resources, and is widely applied in the equipment fields such as deep - sea observation, sounding and sensing, underwater construction operations, deep - sea oil and gas production, deep - sea mineral development, etc.

[0003] Cable clamping devices are usually applied to tasks such as underwater robot salvage, underwater detection platform deployment and recovery, and mooring buoy system deployment and recovery. Its main function is, under the self - acting force of a floating body or a sunken object, to limit the direction of the cable at the cable outlet end during the orderly release of the cable in the cable release device, and to clamp the cable when the cable tension is too large, preventing the cable from breaking and suffering serious wear, thereby assisting in completing operations such as salvage, deployment, and recovery.

[0004] Currently, during the cable release process under large - tension action, according to different cable states, it is necessary to perform tension - reducing treatment and anti - wear treatment on the cable.

[0005] For example, a cable anti - wear device for ships, CN202944534U, which consists of a fairlead roller, symmetrically arranged outer shells and partitions, and fixing bolts. Although it has a simple structure, ingenious design, and is easy to install, and solves the problem of cable and gunwale wear, it has the disadvantages of loose structure, low reliability, and can only solve the problem of single - direction cable wear.

[0006] For example, a fairlead roller for reducing cable wear, CN212125442U, which is provided with two parallel fairlead plates and a fairlead wheel rotatably connected between the two fairlead plates, preventing the cable from directly contacting the fairlead plates and avoiding the friction generated between the cable and the fairlead plates during cable retraction. However, this utility model has the disadvantage that it can only reduce cable wear and cannot effectively prevent cable damage when the cable tension is too large for a long time and with high reliability. Summary of the Invention

[0007] The technical problem to be solved by the present invention is: aiming at the problems of low life, poor reliability, and difficulty in working stably and reliably for a long time of large - load ropes in complex underwater environments, a highly reliable clamping device applicable to underwater mooring cables is provided. By the method of using a hydraulic cylinder to push a push rod to clamp the cable and arranging rollers horizontally and vertically, the purpose of preventing the cable from being pulled apart under large - tension conditions and preventing cable wear in all directions is achieved.

[0008] The technical solution of the present invention is:

[0009] A highly reliable clamping device suitable for underwater mooring cables, comprising: a longitudinal roller, a transverse roller, a first spring pin, a connecting rod block, a hydraulic cylinder, a second spring pin, a first guide wheel bracket, a second guide wheel bracket, a guide wheel, a cable, a first clamping block, a second clamping block, a large push rod, a small push rod, a first spring, a second spring, a third spring pin, a fourth spring pin, a third spring, a fourth spring, a guide shaft, and a roller bracket;

[0010] The first guide wheel bracket and the second guide wheel bracket are fixedly installed in parallel on the whole machine for positioning and supporting. The guide wheel passes through the guide shaft and is fixed between the first guide wheel bracket and the second guide wheel bracket through the guide shaft; the longitudinal roller and the transverse roller are installed on the roller bracket, and the roller bracket is fixedly installed above the first guide wheel bracket and the second guide wheel bracket; the cable passes around the guide wheel and passes out through the middle of the longitudinal roller and the transverse roller;

[0011] The third spring pin and the fourth spring pin are respectively connected to the first clamping block and the second clamping block by screws, and then are pressed and fixed on the first guide wheel bracket and the second guide wheel bracket through the third spring and the fourth spring;

[0012] The large push rod and the small push rod pass through the connecting rod block. The two ends of the large push rod are connected to the first spring pin and the second spring pin, and the first spring pin and the second spring pin are respectively pressed and fixed through the first spring and the second spring; the center of the small push rod is connected to the hydraulic cylinder; the bottom of the hydraulic cylinder is fixed on the first guide wheel bracket.

[0013] Further, the clamping device is arranged at the outlet end of the underwater mooring cable.

[0014] Further, there are two longitudinal rollers and two transverse rollers each, arranged in a cross shape.

[0015] Further, both the first clamping block and the second clamping block are made of rubber material to increase the friction force during clamping and protect the cable.

[0016] Further, the large push rod and the small push rod are arranged in parallel.

[0017] Further, symmetric guide holes are provided on both the first guide wheel bracket and the second guide wheel bracket, and the two ends of the large push rod respectively pass through the guide holes on the first guide wheel bracket and the second guide wheel bracket.

[0018] Further, when clamping is required, the hydraulic cylinder pushes the small push rod upward, the small push rod drives the connecting rod block to move upward, the connecting rod block drives the large push rod to move outward along the guide hole, and the large push rod forces the first spring pin and the second spring pin to move outward, so that the clamping position is released. Under the action of the third spring and the fourth spring, the third spring pin, the fourth spring pin, the first clamping block and the second clamping block are pushed to clamp the cable.

[0019] Furthermore, when clamping is not required, the positions of the hydraulic cylinder and the connecting rod block remain unchanged, and the cable is normally released from the cable outlet end through the longitudinal roller and the transverse roller.

[0020] The beneficial effects of the present invention compared with the prior art are as follows:

[0021] (1) The present invention innovatively proposes a design method for an underwater mooring cable clamping device with a compact structure and high reliability, designs a new mechanism for the clamping device and the anti-wear cable, solves the problems of low life, poor reliability, and difficulty in long-term reliable and stable operation of large-load ropes in complex underwater environments, and realizes the effect of avoiding cable breakage and cable wear caused by excessive cable tension under large underwater loads.

[0022] (2) The clamping device applicable to underwater mooring cables of the present invention has a compact structure and is easy to operate, solving the problems in the prior art such as the inability to reliably prevent cable damage caused by excessive cable tension for a long time and only being able to reduce cable wear in a single direction.

[0023] (3) The present invention adopts a mechanism combining a hydraulic cylinder and a clamping block, which can quickly and effectively clamp the cable, reduce the cable tension, and prevent the cable from breaking.

[0024] (4) The rope outlet end of the mechanism of the present invention is provided with rollers arranged longitudinally and horizontally, which can prevent the rope outlet end of the cable from being cut and worn in all directions. Description of the Drawings

[0025] Figure 1 is a schematic diagram of the overall appearance mechanism in the embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of a partial mechanism in the embodiment of the present invention;

[0027] Figure 3 is a sectional view of the mechanism in the embodiment of the present invention. Detailed Embodiments

[0028] The following further describes the detailed embodiments of the present invention in conjunction with the drawings.

[0029] As shown in Figure 1 、 2 、and 3, the present invention proposes a highly reliable clamping device applicable to underwater mooring cables, which is arranged at the cable outlet end of the underwater mooring cable. The clamping device includes: longitudinal roller 1, transverse roller 2, first spring pin 3, connecting rod block 4, hydraulic cylinder 5, second spring pin 6, first guide wheel bracket 7, second guide wheel bracket 8, guide wheel 9, cable 10, first clamping block 11, second clamping block 12, large push rod 13, small push rod 14, first spring 15, second spring 16, third spring pin 17, fourth spring pin 18, third spring 19, fourth spring 20, guide shaft 21, roller bracket 22;

[0030] The first guide wheel bracket 7 and the second guide wheel bracket 8 are fixedly mounted on the whole machine in parallel for positioning and supporting. The guide wheel 9 passes through the guide shaft 21 and is fixed between the first guide wheel bracket 7 and the second guide wheel bracket 8 through the guide shaft 21; the longitudinal roller 1 and the transverse roller 2 are mounted on the roller bracket 22, and the roller bracket 22 is fixedly mounted above the first guide wheel bracket 7 and the second guide wheel bracket 8; the cable 10 bypasses the guide wheel 9 and passes out through the middle of the longitudinal roller 1 and the transverse roller 2.

[0031] The third spring pin 17 and the fourth spring pin 18 are respectively connected to the first clamping block 11 and the second clamping block 12 by screws, and then are pressed and fixed on the first guide wheel bracket 7 and the second guide wheel bracket 8 through the third spring 19 and the fourth spring 20;

[0032] The large push rod 13 and the small push rod 14 pass through the connecting rod block 4. Both ends of the large push rod 13 are connected to the first spring pin 3 and the second spring pin 6, and the first spring pin 3 and the second spring pin 6 are respectively pressed and fixed through the first spring 15 and the second spring 16; the center of the small push rod 14 is connected to the hydraulic cylinder 5; the bottom of the hydraulic cylinder 5 is fixed on the first guide wheel bracket 7.

[0033] In the present invention, there are two longitudinal rollers 1 and two transverse rollers 2 each, arranged in a cross shape.

[0034] In the present invention, both the first clamping block 11 and the second clamping block 12 are made of rubber material, and the friction force is increased during clamping to protect the cable.

[0035] In the present invention, the large push rod 13 and the small push rod 14 are arranged in parallel.

[0036] In the present invention, symmetric guide holes are provided on both the first guide wheel bracket 7 and the second guide wheel bracket 8, and both ends of the large push rod 13 respectively pass through the guide holes on the first guide wheel bracket 7 and the second guide wheel bracket 8.

[0037] Working principle:

[0038] When clamping is required, the hydraulic cylinder 5 pushes the small push rod 14 upward. The small push rod 14 drives the connecting rod block 4 to move upward. The connecting rod block 4 drives the large push rod 13 to move outward along the guide hole. The large push rod 13 forces the first spring pin 3 and the second spring pin 6 to move outward, so that the clamping position is released. Under the action of the third spring 19 and the fourth spring 20, the third spring pin 17, the fourth spring pin 18, the first clamping block 11 and the second clamping block 12 are pushed, thereby clamping the cable 10.

[0039] When clamping is not required, the positions of the hydraulic cylinder 5 and the connecting rod block 4 remain unchanged, and the cable 10 normally exits from the cable outlet end through the longitudinal roller 1 and the transverse roller 2.

[0040] The above solution of the present invention solves the problems of low life, poor reliability, and difficulty in working reliably and stably for a long time of large-load ropes in complex underwater environments, and realizes the effect of avoiding rope breakage and rope wear caused by excessive cable tension under large underwater loads. At the same time, the present invention also solves the problems in the prior art that cannot reliably prevent cable damage caused by excessive cable tension for a long time and can only reduce cable wear in a single direction.

[0041] The parts not detailed in the present invention belong to the common general knowledge of those skilled in the art.

Claims

1. A highly reliable clamping device for underwater mooring cables, characterized in that include: Longitudinal roller (1), transverse roller (2), first spring pin (3), connecting rod block (4), hydraulic cylinder (5), second spring pin (6), first guide wheel bracket (7), second guide wheel bracket (8), guide wheel (9), cable (10), first clamping block (11), second clamping block (12), large push rod (13), small push rod (14), first spring (15), second spring (16), third spring pin (17), fourth spring pin (18), third spring (19), fourth spring (20), guide shaft (21), roller bracket (22); The first guide wheel bracket (7) and the second guide wheel bracket (8) are fixed in parallel on the whole machine for positioning support; the guide wheel (9) passes through the guide shaft (21) and is fixed between the first guide wheel bracket (7) and the second guide wheel bracket (8) through the guide shaft (21); the longitudinal roller (1) and the transverse roller (2) are installed on the roller bracket (22); the roller bracket (22) is fixedly installed above the first guide wheel bracket (7) and the second guide wheel bracket (8); the cable (10) passes around the guide wheel (9) and passes through the middle of the longitudinal roller (1) and the transverse roller (2); The third spring pin (17) and the fourth spring pin (18) are respectively connected to the first clamping block (11) and the second clamping block (12) by screws, and then pressed and fixed to the first guide wheel bracket (7) and the second guide wheel bracket (8) by the third spring (19) and the fourth spring (20); The large push rod (13) and the small push rod (14) pass through the connecting rod block (4); the two ends of the large push rod (13) are connected to the first spring pin (3) and the second spring pin (6); the first spring pin (3) and the second spring pin (6) are respectively pressed and fixed by the first spring (15) and the second spring (16); the center of the small push rod (14) is connected to the hydraulic cylinder (5); the bottom of the hydraulic cylinder (5) is fixed on the first guide wheel bracket (7).

2. A highly reliable clamping device for underwater mooring cables according to claim 1, characterized in that: The clamping device is arranged at the outlet end of the underwater mooring cable.

3. A highly reliable clamping device for underwater mooring cables according to claim 1, characterized in that: There are two longitudinal rollers (1) and two transverse rollers (2), which are arranged in a tic-tac-toe shape.

4. A highly reliable clamping device for underwater mooring cables according to claim 1, characterized in that: The first clamping block (11) and the second clamping block (12) are both made of rubber material, which increases friction during clamping to protect the cable.

5. A highly reliable clamping device for underwater mooring cables according to claim 1, characterized in that: The large push rod (13) and the small push rod (14) are arranged in parallel.

6. A highly reliable clamping device for underwater mooring cables according to claim 5, characterized in that: Symmetrical guide holes are provided on the first guide wheel bracket (7) and the second guide wheel bracket (8), and the two ends of the large push rod (13) pass through the guide holes on the first guide wheel bracket (7) and the second guide wheel bracket (8) respectively.

7. A highly reliable clamping device for underwater mooring cables according to claim 6, characterized in that: When clamping is required, the hydraulic cylinder (5) pushes the small push rod (14) upwards, the small push rod (14) drives the connecting rod block (4) to move upwards, the connecting rod block (4) drives the large push rod (13) to move outwards along the guide hole, the large push rod (13) forces the first spring pin (3) and the second spring pin (6) to move outwards, thereby disengaging the clamping position, and under the action of the third spring (19) and the fourth spring (20), the third spring pin (17), the fourth spring pin (18), the first clamping block (11) and the second clamping block (12) are pushed, thereby clamping the cable (10).

8. A highly reliable clamping device for underwater mooring cables according to claim 1, characterized in that: When clamping is not required, the hydraulic cylinder (5) and the connecting rod block (4) remain in place, and the cable (10) is normally discharged from the cable outlet end through the longitudinal roller (1) and the transverse roller (2).

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