A traction device for an underwater winch

Abstract

The present invention discloses a traction device for an underwater winch, which includes a cable outlet, a cable inlet, a support plate, a traction mechanism, a cable pressing mechanism and a cable diameter detection mechanism. The support plates are symmetrically arranged to form an installation area. The cable outlet and the cable inlet are respectively arranged at the left and right ends of the support plate. The cable diameter detection mechanism is arranged at the rear end of the cable inlet for detecting the cable diameter. The traction mechanism and the cable pressing mechanism are arranged in the installation area. The cable is pressed on the traction mechanism by the cable pressing mechanism, and the cable is moved from the cable inlet to the cable outlet through the traction mechanism. The traction device of the present invention is used in cooperation with the underwater winch, so that when the underwater winch winds and unwinds the cable, the cable between the winch drum and the traction mechanism always maintains a certain tension, enabling the winch drum to discharge the cable neatly and densely. In cooperation with the cable diameter detection mechanism, the cable diameter detection is realized, and the matching pressure wheel is automatically switched to ensure the traction force of the cable.

Description

Technical Field

[0001] The present invention relates to the field of underwater equipment, and particularly to a traction device for an underwater winch. Background Art

[0002] Underwater detection cables are often composed of hybrid cables with different cable diameters and have a large bending radius. To densely arrange these cables on an underwater winch, a traction mechanism is often required. Traditional traction mechanisms are generally for surface applications and generally use a tensioning wheel with a V-groove for tensioning and traction. However, using such a mechanism results in a bulky structure of the traction mechanism and cannot meet the lightweight requirements of underwater equipment. Summary of the Invention

[0003] Aiming at the defects existing in the above prior art, the main purpose of the present invention is to overcome the deficiencies of the prior art and disclose a traction device for an underwater winch, which includes a cable outlet, a cable inlet, a support plate, a traction mechanism, a cable pressing mechanism, and a cable diameter detection mechanism. The support plates are symmetrically arranged to form an installation area. The cable outlet and the cable inlet are respectively arranged at the left and right ends of the support plate. The cable diameter detection mechanism is arranged at the rear end of the cable inlet for detecting the diameter of the cable. The traction mechanism and the cable pressing mechanism are arranged in the installation area. The cable is pressed on the traction mechanism by the cable pressing mechanism, and the cable is moved from the cable inlet to the cable outlet by the traction mechanism.

[0004] The traction mechanism includes a driving gear, a driven gear, a chain, a traction motor, and a plurality of traction blocks. The driving gear and the driven gear are rotatably arranged on the support plate. The chain is arranged on the driving gear and the driven gear. The driving gear is driven to rotate by the traction motor. The traction block is recessed with a traction groove, and the traction groove is V-shaped.

[0005] Further, it further includes a guide bar for supporting and guiding the movement of the chain. The guide bar is arranged between the driving gear and the driven gear, and the guide bar is upwardly convex with a guiding portion matching the width of the chain.

[0006] Further, it further includes a guide plate. The two ends of the guide plate are provided with chamfers, and the guide plates are symmetrically arranged on the support plate.

[0007] Further, the cable pressing mechanism includes two sets of pressing wheel mechanisms, a first gear, and a driving motor. The pressing wheel mechanism includes a pressing rod, a first rotating shaft, a second gear, and a first pressing wheel and a second pressing wheel that match the diameter of the cable. The first pressing wheel and the second pressing wheel are rotatably arranged at both ends of the pressing rod. The first rotating shaft is rotatably arranged on the support plate, one end of which is connected to the middle of the pressing rod, and the other end is connected to the second gear. The two sets of pressing wheel mechanisms are arranged at intervals. The first gear is meshed between the second gears of the two sets of pressing wheel mechanisms. The driving motor is used to drive the first gear to rotate. The first gear and the second gear are arranged in a gear box, and the gear box adopts a structure form of oil filling compensation.

[0008] Further, the cable diameter detection mechanism includes a first guide wheel, a swing arm, a torsion spring, a second rotating shaft, and an angle sensor. The second rotating shaft is rotatably arranged on the support plate, one end of which is connected to the middle of the swing arm, and the other end is connected to the angle sensor. One end of the swing arm is rotatably provided with the first guide wheel. The torsion spring is arranged on the second rotating shaft to provide a driving force for the second rotating shaft to rotate clockwise.

[0009] Further, a limiting rod is further included. The limiting rod is arranged on the support plate to limit the lower limit position of the first guide wheel.

[0010] Further, the cable inlet includes a second guide wheel and a bracket. Four second guide wheels are arranged, which are respectively rotatably arranged on the bracket in the front, back, up, and down directions to guide the four sides of the cable.

[0011] Further, the angle of the traction groove is 30° - 60°.

[0012] Further, the cable outlet is in a horn shape.

[0013] The beneficial effects achieved by the present invention:

[0014] The traction device of the present invention is used in cooperation with an underwater winch. When the underwater winch winds and unwinds the cable, the cable between the winch drum and the traction mechanism always maintains a certain tension, so that the winch drum discharges the cable neatly and densely. In cooperation with the cable diameter detection mechanism, the cable diameter detection is realized, and the matching pressing wheel is automatically switched to ensure the traction force of the cable. By the cooperation of the pressing wheel and the traction groove, the friction between the cable and the traction groove is increased. Four guide wheels are arranged at the cable inlet to guide the four sides of the cable to prevent cable jumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a traction device for an underwater winch of the present invention;

[0016] Figure 2Schematic diagram of the internal structure of a traction device for an underwater winch according to the present invention;

[0017] Figure 3 Schematic three-dimensional structure diagram of the traction mechanism;

[0018] Figure 4 Cross-sectional view of the traction mechanism;

[0019] Figure 5 Schematic structure diagram of the cable pressing mechanism;

[0020] Figure 6 Schematic structure diagram of the cable diameter detection mechanism;

[0021] Figure 7 Schematic structure diagram of the cable inlet;

[0022] The reference signs are as follows:

[0023] 1. Cable outlet, 2. Cable inlet, 3. Support plate, 4. Traction mechanism, 5. Cable pressing mechanism, 6. Cable diameter detection mechanism, 21. Second guide wheel, 22. Bracket, 41. Driving gear, 42. Driven gear, 43. Chain, 44. Traction motor, 45. Traction block, 46. Guide strip, 47. Guide plate, 451. Traction groove, 461. Guiding portion, 51. Cable pressing wheel mechanism, 52. First gear, 53. Driving motor, 511. Pressing rod, 512. First rotating shaft, 513. Second gear, 514. First pressing wheel, 515. Second pressing wheel, 61. First guide wheel, 62. Swing arm, 63. Torsion spring, 64. Second rotating shaft, 65. Angle sensor. Detailed implementation manners

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to 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.

[0025] A traction device for an underwater winch, as Figure 1 shown, includes a cable outlet 1, a cable inlet 2, a support plate 3, a traction mechanism 4, a cable pressing mechanism 5 and a cable diameter detection mechanism 6. Two support plates 3 are symmetrically arranged, and an installation area for installing the traction mechanism 4, the cable pressing mechanism 5 and the cable diameter detection mechanism 6 is formed therebetween. The cable outlet 1 and the cable inlet 2 are respectively arranged at the left and right ends of the support plate 3. The cable diameter detection mechanism 6 is arranged at the rear end of the cable inlet 2 to monitor the diameter of the cable in real time. The traction mechanism 4 and the cable pressing mechanism 5 are arranged up and down. The cable is pressed against the traction mechanism 4 by the cable pressing mechanism 5, and the cable is pulled from the cable inlet 2 to the cable outlet 1 by the traction mechanism 4.

[0026] Among them, as Figures 1-4As shown in the figure, the traction mechanism 4 includes a driving gear 41, a driven gear 42, a chain 43, a traction motor 44 and a plurality of traction blocks 45. The driving gear 41 and the driven gear 42 are rotatably arranged in the installation area through a rotating shaft, and both ends of the rotating shaft are installed on the support plate 3. The chain 43 is arranged on the driving gear 41 and the driven gear 42, and the traction block 45 is fixedly installed on the chain 43. A traction groove 451 is recessed on the upper surface of the traction block 45, and the traction groove 451 is V-shaped. The traction motor 44 is fixedly arranged outside the support plate 3 and is connected to the driving gear 41, and the driving gear 41 is driven by the traction motor 44 to drive the chain to transmit power. During use, the cable is placed in the traction groove 451, and the cable is pressed in the traction groove 451 through the cable pressing mechanism 5 to increase the friction between the cable and the traction groove 451, so as to ensure that there is enough driving force to drive the cable to move from the cable inlet 2 to the cable outlet. The traction motor 44 should have the function of underwater use, and preferably adopts the structural form of oil-filled compensation. Preferably, the angle range of the traction groove 451 is 30°-60°.

[0027] In the above embodiment, as Figures 1-4 shown, it further includes a guide bar 46 for supporting and guiding the movement of the chain 43. The guide bar 46 is arranged between the driving gear 41 and the driven gear 42, and the guide sleeve 46 is provided with an upward convex guiding portion 461 that matches the width of the chain 43. The middle part of the chain 43 between the driving gear 41 and the driven gear 42 is supported by the guide bar 46 to prevent the middle chain 43 from sagging; at the same time, the guiding portion 461 is used to guide the horizontal movement of the chain 43.

[0028] In an embodiment, as Figures 1-4 shown, it further includes a guide plate 47. Both ends of the guide plate 47 are provided with chamfers, and the guide plate 47 is symmetrically arranged on the two support plates 3. A guiding channel that is narrow in the middle and wide at both ends is formed by the two guide plates 47. The width of the middle part matches the width of the traction block 45, so as to ensure that the traction block 45 will not shake back and forth. Preferably, in cooperation with the guide bar 46 arranged below and the cable pressing mechanism above, the cable is restricted in four directions, so as to ensure the stable horizontal movement of the cable.

[0029] In an embodiment, as Figure 1 、 2As shown in FIGS. 5, the cable pressing mechanism 5 includes two sets of pressing wheel mechanisms 51, a first gear 52, and a driving motor 53. The first gear 52 is connected to the driving motor 53. The driving motor 53 drives the first gear 52 to rotate, thereby driving the pressing wheel mechanism 51 to rotate. Specifically, the pressing wheel mechanism 51 includes a pressing rod 511, a first rotating shaft 512, a second gear 513, and a first pressing wheel 514 and a second pressing wheel 515 that match the diameter of the cable. Since the cable consists of two different specifications of diameters, by setting the first pressing wheel 514 and the second pressing wheel 515 to cooperate with the cables of different diameters at both ends, the cable can be better pressed in the traction groove 451. The first pressing wheel 514 and the second pressing wheel 515 are rotatably arranged at both ends of the pressing rod 511. The first rotating shaft 512 is rotatably arranged on the support plate 3. One end of it is connected to the middle of the pressing rod 511, and the other end is connected to the second gear 513. The two sets of pressing wheel mechanisms 51 are arranged at intervals. The first gear 52 is meshed between the second gears 513 of the two sets of pressing wheel mechanisms 51. The driving motor 53 is used to drive the first gear 52 to rotate to drive the pressing wheel mechanism 51 to rotate clockwise and counterclockwise synchronously, so as to switch the pressing wheels pressing on the cable. The first gear 52 and the second gear 513 are arranged in a gear box, and the gear box adopts a structure form of oil filling compensation.

[0030] In one embodiment, as Figure 1 , 2 , 6 shows, the cable diameter detection mechanism 6 includes a first guide wheel 61, a swing arm 62, a torsion spring 63, a second rotating shaft 64, and an angle sensor 65. The second rotating shaft 64 is rotatably arranged on the support plate 3. One end of it is connected to the middle of the swing arm 62, and the other end is connected to the angle sensor 65. A first guide wheel 61 is rotatably arranged at one end of the swing arm 62. The torsion spring 63 is arranged on the second rotating shaft 64 to provide a driving force for the second rotating shaft 64 to rotate clockwise, so as to ensure that the first guide wheel 51 closely adheres to the cable. The angle of the swing arm 62 is measured by the angle sensor 65, and then the diameter of the cable is judged, so that the cable pressing mechanism 5 switches to the pressing wheel that matches the cable diameter to press the cable. Preferably, it further includes a limiting rod. The limiting rod is arranged on the support plate 3 and is not located at the left end of the swing arm 62 to block the swing arm 62 from continuing to rotate, so as to limit the lower limit position of the first guide wheel 61.

[0031] In one embodiment, as Figure 1 , 2 , 7 shows, the cable inlet 2 includes a second guide wheel 21 and a bracket 22. Four second guide wheels 21 are arranged, which are respectively rotatably arranged on the bracket 22 in the front, back, up, and down directions to guide the four sides of the cable to prevent cable skipping.

[0032] In one embodiment, as Figure 1 , 2 shows, the cable outlet 1 is in a horn shape.

[0033] When the present invention is in use, asFigures 1-7 As shown, the cable enters the installation area through the cable inlet 2, and exits from the cable outlet 1. The cable is placed through the four second guide wheels 21 and cable skipping occurs. The cable is placed in the traction groove 451, and at the same time, the first guide wheel 61 presses on the cable to measure the cable diameter in real time, so as to select the corresponding pressing wheel to press the cable in the traction groove 451. The traction motor 44 drives the driving gear 41 to rotate, so as to drive the chain 43 to rotate counterclockwise, synchronously drive the traction block 45 to move, so as to move the cable from the cable inlet 2 to the cable outlet 1.

[0034] The above is only the preferred embodiment of the present invention, and is not used to limit the implementation scope of the present invention; if the present invention is modified or equivalently replaced without departing from the spirit and scope of the present invention, it should be covered by the protection scope of the claims of the present invention.

Claims

1. A traction device for an underwater winch, characterized in that, It includes a cable outlet, a cable inlet, a support plate, a traction mechanism, a cable pressing mechanism and a cable diameter detection mechanism. The support plates are symmetrically arranged to form an installation area. The cable outlet and the cable inlet are respectively arranged at the left and right ends of the support plate. The cable diameter detection mechanism is arranged at the rear end of the cable inlet for detecting the cable diameter. The traction mechanism and the cable pressing mechanism are arranged in the installation area. The cable is pressed on the traction mechanism by the cable pressing mechanism, and the cable is moved from the cable inlet to the cable outlet through the traction mechanism; The traction mechanism includes a driving gear, a driven gear, a chain, a traction motor and a plurality of traction blocks. The driving gear and the driven gear are rotatably arranged on the support plate. The chain is arranged on the driving gear and the driven gear. The driving gear is driven to rotate by the traction motor. The traction block is recessed with a traction groove, and the traction groove is V-shaped; The cable pressing mechanism includes two groups of pressing wheel mechanisms, a first gear and a driving motor. The pressing wheel mechanism includes a pressing rod, a first rotating shaft, a second gear, a first pressing wheel and a second pressing wheel that cooperate with the cable diameter. The first pressing wheel and the second pressing wheel are rotatably arranged at both ends of the pressing rod. The first rotating shaft is rotatably arranged on the support plate, one end of which is connected to the middle of the pressing rod, and the other end is connected to the second gear. The two groups of pressing wheel mechanisms are arranged at intervals. The first gear is meshed between the second gears of the two groups of pressing wheel mechanisms. The first gear is driven to rotate by the driving motor. The first gear and the second gear are arranged in a gear box, and the gear box adopts a structure form with oil filling compensation; The cable diameter detection mechanism includes a first guide wheel, a swing arm, a torsion spring, a second rotating shaft and an angle sensor. The second rotating shaft is rotatably arranged on the support plate, one end of which is connected to the middle of the swing arm, and the other end is connected to the angle sensor. A first guide wheel is rotatably arranged at one end of the swing arm. The torsion spring is arranged on the second rotating shaft to provide a driving force for the second rotating shaft to rotate clockwise.

2. The traction device for an underwater winch according to claim 1, characterized in that, It also includes a guide bar for supporting and guiding the movement of the chain. The guide bar is arranged between the driving gear and the driven gear, and the guide bar is provided with a guiding portion that protrudes upward and matches the width of the chain.

3. The traction device for an underwater winch according to claim 1, characterized in that, It also includes a guide plate. Chamfers are arranged at both ends of the guide plate. The guide plates are symmetrically arranged on the support plate.

4. The traction device for an underwater winch according to claim 1, characterized in that, It also includes a limiting rod. The limiting rod is arranged on the support plate to limit the lower limit position of the first guide wheel.

5. The traction device for an underwater winch according to claim 1, characterized in that, The cable inlet includes a second guide wheel and a bracket. Four second guide wheels are arranged, which are respectively rotatably arranged on the bracket in the front, rear, upper and lower directions to guide the four sides of the cable.

6. The traction device for an underwater winch according to claim 1, characterized in that, The angle of the traction groove is 30°-60°.

7. The traction device for an underwater winch according to claim 1, characterized in that, The cable outlet is in a flared shape.

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