Cable bending resistance testing device for ships and warships

Abstract

The utility model relates to the technical field of cable bending inspection, in particular to a bending resistance inspection device for a ship cable, which comprises three support plates which are linearly arranged at equal intervals, and each support plate is provided with a detection assembly; the power assembly is connected with the two supporting plates located at the ends; the detection assembly comprises a rotating shaft which is rotatably arranged on the side wall of the support plate and penetrates through the support plate; the fixing unit is arranged at one end part of the rotating shaft, and the fixing unit is used for fixing a cable; according to the utility model, through cooperation among the adjusting unit, the limiting unit, the first rack, the second rack, the gear and the fixing unit, bending inspection of different degrees can be carried out on three cables on the three supporting plates at the same time.

Description

Technical Field

[0001] This utility model relates to the field of cable bending inspection technology, specifically a bending resistance inspection device for ship cables. Background Technology

[0002] The internal space of a ship is complex, containing various compartments, pipes, and equipment. Cables need to be laid in a limited and irregular space, often having to bypass numerous obstacles and bend multiple times to reach the corresponding connection points. Therefore, in order to ensure that the cable laying work on the ship can be carried out normally, it is necessary to conduct bending tests on the cables to ensure that the cables can be bent according to the actual installation requirements.

[0003] In the existing technology, most cable bending inspection equipment uses a swing arm to drive the cable to bend, and performs bending inspection work with a specific swing angle and swing speed. Since the bending degree requirements of the cable are different at different positions, the swing angle and swing speed need to be adjusted according to the type of cable during the inspection process. As a result, most existing cable bending inspection devices can only perform bending inspection work on a single type of cable. Utility Model Content

[0004] The purpose of this invention is to provide a device for testing the bending resistance of ship cables, so as to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is: a bending resistance testing device for ship cables, comprising:

[0006] Three support plates are arranged linearly at equal intervals, and each support plate is provided with a detection component;

[0007] A power assembly, which is connected to two end plates;

[0008] The detection component includes:

[0009] A rotating shaft is rotatably mounted on the side wall of the support plate and passes through the support plate;

[0010] A fixing unit is disposed at one end of the rotating shaft, and the fixing unit is used to fix the cable;

[0011] A gear, which is fixed to the other end of the shaft;

[0012] A connecting unit is disposed on the side wall of the support plate;

[0013] Two connecting plates, both of which are connected to the connecting unit;

[0014] The first rack and the second rack are both fixed between two connecting plates, and the first rack and the second rack are symmetrically arranged about the gear.

[0015] A limiting unit is disposed on the side wall of the support plate, and the limiting unit is used to limit the range of movement of the two connecting plates;

[0016] An adjustment unit is connected to a connecting unit, and the adjustment unit is used to adjust the height of the connecting plate.

[0017] Preferably, the fixing unit includes:

[0018] A swing arm, which is fixed to the end of a rotating shaft;

[0019] A clamp is fixed to one end of the side wall of the swing arm, and the clamp is used to fix the cable;

[0020] Two first pulleys are rotatably mounted on the side wall of the support plate;

[0021] Two second pulleys are rotatably mounted on the side wall of the support plate.

[0022] Preferably, the connection unit includes:

[0023] Two guide rails, both of which are fixed to the side wall of the support plate;

[0024] Two sliding seats are provided, both of which are vertically arranged. Each sliding seat has a first slider fixed to its side wall. The four first sliders are slidably connected to two guide rails respectively. The two sliding seats are slidably connected to two connecting plates respectively.

[0025] The transmission unit is connected to two first sliders located below it, and the transmission unit is also connected to the power assembly.

[0026] Preferably, the adjustment unit includes:

[0027] The second slider is slidably connected to the guide rail above it;

[0028] A cylinder is fixed to the top of the second slider, and the telescopic end of the cylinder passes through the bottom of the second slider. The telescopic end of the cylinder is fixed to the first rack.

[0029] Preferably, the limiting unit includes:

[0030] Two support plates are fixed to the side wall of the support plate. The side wall of each support plate has a fixing hole, and an electric push rod is installed in each fixing hole.

[0031] Preferably, the power assembly includes:

[0032] Two pulleys, each of which is rotatably connected to the sidewalls of two end support plates;

[0033] A drive belt, which is fitted onto two pulleys.

[0034] Preferably, the transmission unit includes:

[0035] Two connecting blocks, both of which are fixed to the top of the drive belt;

[0036] A rod, which is fixed between two connecting blocks;

[0037] A fixing plate is fixed to two first sliders located below it;

[0038] A transmission plate is fixed to the bottom of a fixed plate. A circular hole is provided on the side wall of the transmission plate, and the rod passes through the circular hole.

[0039] Two springs are fixed to the side walls of the two connecting blocks respectively, and both springs are fixed to the transmission plate.

[0040] This utility model provides an improved device for testing the bending resistance of ship cables, which has the following improvements and advantages compared with the prior art:

[0041] This utility model, through the setting of an adjustment unit, a first rack, a second rack, and a gear, can achieve the following: when the first rack and the second rack move in the same direction, and when the first rack and the second rack respectively form a transmission with the gear, the gear rotates in opposite directions (that is, when the first rack and the gear are transmitting, the gear rotates clockwise, while when the second rack and the gear are transmitting, the gear rotates counterclockwise). This enables the gear to drive the fixed unit to perform cable bending inspection with a smaller rotation angle and a faster reciprocating rotation frequency.

[0042] When the limiting unit is used, the gear is always engaged with the first rack. The limiting unit restricts the movement range of the connecting plate, that is, the movement range of the first rack is restricted, which makes the gear only rotate at a specific angle. The rotation frequency of the gear is determined by the power component. Therefore, at this time, the fixing unit can drive the cable to perform cable bending inspection at a small swing angle and normal swing frequency.

[0043] When neither the limiting unit nor the adjusting unit is working, the power component drives the connecting plate to reciprocate normally, which in turn drives the fixed unit to swing through the gears, so that the cable can be tested for bending at a normal swing frequency and angle.

[0044] In summary, this device enables three types of cables on three support plates to undergo bending tests of different degrees simultaneously. Attached Figure Description

[0045] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0046] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0047] Figure 2 This is a schematic diagram of the first rack, second rack, and gear structure of this utility model;

[0048] Figure 3 This is the utility model Figure 2 A magnified view of the structure at point A in the middle;

[0049] Figure 4 This is the utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0050] Figure 5 This is a front view schematic diagram of the first rack, second rack, and gear of this utility model.

[0051] Explanation of reference numerals in the attached figures:

[0052] 1. Support plate; 2. First pulley; 3. Second pulley; 4. Swing arm; 5. Clamp; 6. Pulley; 7. Transmission belt; 8. Support plate; 9. Electric push rod; 10. Guide rail; 11. First slider; 12. Second slider; 13. Cylinder; 14. Connecting plate; 15. First rack; 16. Gear; 17. Rotating shaft; 18. Second rack; 19. Connecting block; 20. Rod body; 21. Spring; 22. Fixing plate; 23. Transmission plate; 24. Sliding seat. Detailed Implementation

[0053] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. 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 protection scope of the present invention.

[0054] This utility model provides an improved device for testing the bending resistance of ship cables. The technical solution of this utility model is as follows:

[0055] like Figures 1-5 As shown, a bending resistance testing device for shipboard cables includes:

[0056] Three support plates 1 are arranged linearly at equal intervals, and each support plate 1 is equipped with a detection component;

[0057] The power assembly is connected to two end support plates 1;

[0058] The detection components include:

[0059] A rotating shaft 17 is rotatably mounted on the side wall of the support plate 1 and passes through the support plate 1.

[0060] A fixing unit is provided at one end of the rotating shaft 17 and is used to fix the cable.

[0061] Gear 16 is fixed to the other end of the rotating shaft 17;

[0062] A connecting unit is provided on the side wall of the support plate 1;

[0063] Two connecting plates 14, both of which are connected to the connecting unit;

[0064] The first rack 15 and the second rack 18 are both fixed between the two connecting plates 14, and the first rack 15 and the second rack 18 are symmetrically arranged about the gear 16.

[0065] A limiting unit is provided on the side wall of the support plate 1. The limiting unit is used to limit the range of movement of the two connecting plates 14.

[0066] An adjustment unit is connected to a connecting unit. The adjustment unit is used to adjust the height of the connecting plate 14.

[0067] By limiting the operation of the limiting unit, the movement range of the first rack 15 is limited, thereby limiting the rotation angle of the gear 16, so as to cooperate with the fixing unit to enable the cable to be bent at a normal oscillation frequency and a small oscillation angle.

[0068] By adjusting the operation of the unit, the height of the connecting plate 14 is changed so that the first rack 15 and the second rack 18 mesh with the gear 16 respectively, thereby achieving a small-angle rotation of the gear 16 and increasing its reciprocating rotation frequency, enabling the cable to be bent for inspection with a higher oscillation frequency and a smaller oscillation angle.

[0069] When neither the limiting unit nor the adjusting unit is working, the swing period and swing angle of the cable are determined by the power component. That is, in this state, the cable is tested for bending at the default swing angle and swing frequency.

[0070] Furthermore, the fixing unit includes:

[0071] Swing arm 4 is fixed to the end of rotating shaft 17;

[0072] Clamp 5 is fixed at one end of the side wall of the swing arm 4 and is used to fix the cable.

[0073] Two first pulleys 2 are rotatably mounted on the side wall of the support plate 1;

[0074] Two second pulleys 3 are rotatably mounted on the side wall of the support plate 1.

[0075] The cable is fixed to the swing arm 4 by a clamp. During the bending test, the cable position is restricted by the first pulley 2, so that the cable bends at the first pulley 2 to achieve the purpose of bending test.

[0076] The two second pulleys 3 can limit the position of the lower end of the cable, preventing the cable from being pulled too far by the weight at the bottom of the cable during the bending test.

[0077] Furthermore, the connection unit includes:

[0078] Two guide rails 10 are fixed to the side wall of the support plate 1;

[0079] Two sliding seats 24 are vertically arranged. Each sliding seat 24 has a first slider 11 fixed on its side wall. The four first sliders 11 are slidably connected to two guide rails 10 respectively. The two sliding seats 24 are slidably connected to two connecting plates 14 respectively.

[0080] The transmission unit is connected to the two first sliders 11 located below, and the transmission unit is also connected to the power assembly.

[0081] The sliding between the sliding seat 24 and the connecting plate 14 enables the first rack 15 and the second rack 18 to move up and down.

[0082] By sliding the guide rail 10 and the first slider 11, the first rack 15 and the second rack 18 between the two connecting plates 14 can reciprocate, thereby realizing the reciprocating rotation of the gear 16.

[0083] Furthermore, the adjustment unit includes:

[0084] The second slider 12 is slidably connected to the guide rail 10 above it;

[0085] Cylinder 13 is fixed to the top of the second slider 12, and the telescopic end of cylinder 13 passes through the bottom of the second slider 12. The telescopic end of cylinder 13 is fixed to the first rack 15.

[0086] By operating the cylinder 13, the first rack 15 can be raised, which in turn drives the second rack 18 to rise through the connecting plate 14, thereby separating the first rack 15 from the gear 16 and meshing the second rack 18 with the gear 16.

[0087] Furthermore, the limiting unit includes:

[0088] Two support plates 8 are fixed to the side wall of the support plate 1. The side walls of the two support plates 8 are provided with fixing holes, and electric push rods 9 are installed in the two fixing holes.

[0089] By adjusting the extension and retraction of the electric push rod 9, that is, when the connecting plate 14 moves to a point where it contacts the extension and retraction end of the electric push rod 9, the connecting plate 14 stops moving.

[0090] Furthermore, the powertrain components include:

[0091] Two pulleys 6 are rotatably connected to the side walls of two end support plates 1, respectively;

[0092] The transmission belt 7 is mounted on two pulleys 6.

[0093] Furthermore, the transmission unit includes:

[0094] Two connecting blocks 19 are fixed to the top of the transmission belt 7;

[0095] Rod 20 is fixed between two connecting blocks 19;

[0096] The fixing plate 22 is fixed to the two first sliders 11 located below it;

[0097] Transmission plate 23 is fixed to the bottom of fixed plate 22. A round hole is opened on the side wall of transmission plate 23, and rod 20 passes through the round hole.

[0098] Two springs 21 are fixed to the side walls of the two connecting blocks 19 respectively, and both springs 21 are fixed to the transmission plate 23.

[0099] When the transmission belt 7 is working, it drives the connecting block 19 to move. At this time, the transmission plate 23 is driven to move by the two springs 21, which, together with the fixed plate 22 and the two first sliders 11 below, enables the two connecting plates 14 to move, that is, drives the first rack 15 and the second rack 18 to move.

[0100] When the connecting plate 14 cannot move under the action of the electric push rod 9, the normal operation of the transmission belt 7 drives the connecting block 19 to move normally. The sliding between the rod body 20 and the transmission plate 23 allows the transmission belt 7 to work normally. Thus, when the connecting plate 14 does not move, the transmission belt 7 can maintain normal operation, so that the bending test on the other two support plates 1 can be carried out normally.

[0101] During the above process, one of the springs 21 is compressed and the other spring 21 is stretched. When the transmission belt 7 moves in the opposite direction, both springs 21 return to their original positions.

[0102] Specifically, the working principle is as follows: When in use, the clamp 5 is used to fix the cable to be tested to the end of the swing arm 4, then the cable is passed between the two first pulleys 2 and the two second pulleys 3, and a suitable weight is fixed at the bottom of the cable.

[0103] The control system and the matching motor drive one of the pulleys 6 to perform periodic forward and reverse rotation. Through the periodic forward and reverse rotation of one pulley 6, the other pulley 6 tensions the transmission belt 7, which can make the upper surface of the transmission belt 7 perform periodic reciprocating motion.

[0104] When the transmission belt 7 moves, it pushes the transmission plate 23 to move back and forth through the two connecting blocks 19 and the two springs 21, and then drives the two first sliders 11 below through the fixed plate 22, so that the two connecting plates 14 move left and right periodically.

[0105] When the cable is bent at a normal angle and frequency, the cylinder 13 keeps the first rack 15 and the gear 16 in contact. Then, during the left and right movement of the two connecting plates 14, the first rack 15 drives the gear 16 to rotate periodically, which in turn drives the swing arm 4 to swing through the rotating shaft 17 to perform the cable bending test.

[0106] When the swing arm 4 needs to swing periodically at a small angle, the extension and retraction of the electric push rod 9 is adjusted. That is, when the connecting plate 14 moves to the point of contact with the extension and retraction end of the electric push rod 9, the connecting plate 14 stops moving. At this time, the spring 21 is compressed, so that when the connecting plate 14 does not move, the transmission belt 7 can maintain normal operation, so that the bending test on the other two support plates 1 can be carried out normally.

[0107] When the swing arm 4 needs to swing at a small angle and a high frequency, after the first rack 15 drives the gear 16 to rotate at a certain angle, the cylinder 13 drives the first rack 15 to rise. During the rise of the first rack 15, the connecting plate 14 drives the second rack 18 to rise, so that the second rack 18 and the gear 16 mesh. Since the transmission belt 7 has not yet folded back at this time, when the second rack 18 and the gear 16 mesh, the gear 16 is immediately driven to rotate in the opposite direction, and then the swing arm 4 swings in the opposite direction through the rotating shaft 17. Then the transmission belt 7 folds back, and at this time the second rack 18 drives the gear 16 to rotate, adjusting the swing direction of the swing arm 4. Finally, the cylinder 13 makes the first rack 15 and the gear 16 mesh again, so that the swing direction of the swing arm 4 is adjusted again. That is, when the swing arm 4 on other support plates 1 swings at a large angle for one cycle, the swing arm 4 adjusted by the cylinder 13 swings at a small angle for two cycles.

[0108] In summary, during the bending test, the cable on one support plate 1 is bent at a normal swing frequency and angle under the action of the swing arm 4, the cable on another support plate 1 is bent at a normal swing frequency and small swing angle under the restriction of the support plate 8, and the cable on the last support plate 1 is bent at a small swing angle and high swing frequency.

Claims

1. A device for testing the bending resistance of ship cables, characterized in that, Include: Three support plates (1), three said support plates (1) are linearly arranged at equal intervals, and a detection assembly is arranged on each of the support plates (1); A power assembly, the power assembly is connected with two support plates (1) at the end; The detection assembly comprises: A rotating shaft (17), the rotating shaft (17) is rotatably arranged on the side wall of the support plate (1), and the rotating shaft (17) penetrates the support plate (1); A fixing unit, the fixing unit is arranged at one end of the rotating shaft (17), and the fixing unit is used for fixing the cable; A gear (16), the gear (16) is fixed on the other end of the rotating shaft (17); A connecting unit, the connecting unit is arranged on the side wall of the support plate (1); Two connecting plates (14), two said connecting plates (14) are connected with the connecting unit; A first rack (15) and a second rack (18), the first rack (15) and the second rack (18) are fixed between the two connecting plates (14), and the first rack (15) and the second rack (18) are symmetrically arranged about the gear (16); A limiting unit, the limiting unit is arranged on the side wall of the support plate (1), and the limiting unit is used for limiting the movement range of the two connecting plates (14); An adjusting unit, the adjusting unit is connected with the connecting unit, and the adjusting unit is used for adjusting the height of the connecting plate (14).

2. A bending endurance testing device for a shipboard cable according to claim 1, characterized in that, The fixing unit comprises: A swing arm (4), the swing arm (4) is fixed at the end of the rotating shaft (17); A clamp (5), the clamp (5) is fixed at one end of the side wall of the swing arm (4), and the clamp (5) is used for fixing the cable; Two first pulleys (2), two said first pulleys (2) are rotatably arranged on the side wall of the support plate (1); Two second pulleys (3), two said second pulleys (3) are rotatably arranged on the side wall of the support plate (1).

3. The bending endurance testing device for a shipboard cable according to claim 1, characterized by The connecting unit comprises: Two guide rails (10), two said guide rails (10) are fixed on the side wall of the support plate (1); Two sliding seats (24), two said sliding seats (24) are vertically arranged, and the side wall of each sliding seat (24) is fixed with a first sliding block (11), four first sliding blocks (11) are respectively and slidably connected with two guide rails (10), and two sliding seats (24) are respectively and slidably connected with two connecting plates (14); A transmission unit, the transmission unit is connected with two first sliding blocks (11) below, and the transmission unit is connected with the power assembly.

4. A bending endurance testing apparatus for a shipboard cable according to claim 3, characterized by The adjusting unit comprises: A second sliding block (12), the second sliding block (12) is slidably connected with the guide rail (10) above; A gas cylinder (13), the gas cylinder (13) is fixed on the top of the second sliding block (12), and the telescopic end of the gas cylinder (13) penetrates the bottom of the second sliding block (12), and the telescopic end of the gas cylinder (13) is fixed with the first rack (15).

5. The bending endurance testing device for a shipboard cable according to claim 1, characterized by The limiting unit comprises: Two support plates (8), two said support plates (8) are fixed on the side wall of the support plate (1), and the side wall of each of the two support plates (8) is provided with a fixing hole, and an electric push rod (9) is arranged in each of the two fixing holes.

6. The bending endurance testing device for a shipboard cable according to claim 3, characterized by The power assembly comprises: Two belt pulleys (6), two said belt pulleys (6) are respectively and two end support plates (1) side wall rotation connection; Transmission belt (7), the transmission belt (7) is set on two belt pulleys (6).

7. A bending endurance testing apparatus for a shipboard cable according to claim 6, characterized by The transmission unit comprises: Two connecting blocks (19), two said connecting blocks (19) are fixed on the top of the transmission belt (7); Rod body (20), the rod body (20) is fixed between two connecting blocks (19); Fixed plate (22), the fixed plate (22) and the two first slider (11) below are fixed; Transmission plate (23), the transmission plate (23) is fixed on the bottom of the fixed plate (22), the transmission plate (23) side wall is provided with a round hole, and the rod body (20) passes through the round hole; Two springs (21), two said springs (21) are respectively fixed on the side wall of two connecting blocks (19), and two springs (21) are fixed with transmission plate (23).

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