CN110823740A

CN110823740A - Cable test platform

Info

Publication number: CN110823740A
Application number: CN201911077740.4A
Authority: CN
Inventors: 蔡炳余; 谢书鸿; 邱兴宇; 费颖杰; 顾春飞; 张建民; 徐魏魏; 赵树铎; 沈维佳; 孙杰
Original assignee: Jiangsu Zhongtian Technology Co Ltd; Zhongtian Technology Submarine Cable Co Ltd
Current assignee: Zhongtian Technology Submarine Cable Co Ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-02-21

Abstract

The utility model provides a cable test platform, includes the platform, rotate set up in initiative wheel subassembly, a plurality of experimental wheel subassemblies and tensioning wheel subassembly on the platform, the action wheel subassembly is including installing initiative rim plate and the pneumatic cylinder subassembly of cable, hydraulic cylinder subassembly drive initiative rim plate both way rotation, a plurality of experimental wheel subassemblies are used for changing derivation direction and the angle of cable, tensioning wheel subassembly slide set up in on the platform for make the cable tensioning of setting on initiative wheel subassembly, a plurality of experimental wheel subassemblies and tensioning wheel subassembly, hydraulic cylinder subassembly drive action rim plate both way rotation makes go up the round trip to rotate on experimental wheel subassembly and the tensioning wheel subassembly, take place the friction with the cable on it to test cable bending wear performance. Above-mentioned cable test platform passes through the tension that take-up pulley subassembly kept the cable, guarantees the accuracy of test, can adjust the guide angle of cable, is suitable for the test of multiple different angles, and the suitability is strong.

Description

Cable test platform

Technical Field

The invention relates to the field of cable detection, in particular to a cable test platform.

Background

The submarine cable is an important component in ocean engineering, the tension control requirement in the laying construction process is very strict, once the tension exceeds the allowable value of the submarine cable, the submarine cable is damaged, and if the tension is too small, the submarine cable is twisted, and the service life of the submarine cable is influenced. The sea cable is mostly caused by mechanical damage in construction, and particularly in large-depth sea cable engineering, when laying the cable, a special cable laying ship is needed to put the cable into the sea little by little through a turntable for placing the sea cable, but because the length of the sea cable is very long, the weight born by the cable is also very large. When the cable is placed in the sea in a long length, the cable still on the turntable is subjected to a considerable tensile force, and at this time, the cable contacting with the turntable has a certain amount of friction damage and bending fatigue, which may affect the quality of the cable and reduce the life of the cable, so that it is important to test the physical properties of the sea cable. At present, there are not many test devices for the bending fatigue property of the submarine cable, which makes the development of the submarine cable technology quite passive, and the application of the submarine cable technology is difficult to be greatly promoted.

Disclosure of Invention

In view of the above, there is a need for a cable testing platform that can effectively test the bending and abrasion of submarine cables.

A cable test platform is used for testing the bending abrasion degree of a cable and comprises a platform, a driving wheel component, a plurality of test wheel components and a tensioning wheel component, wherein the driving wheel component, the plurality of test wheel components and the tensioning wheel component are rotatably arranged on the platform, the driving wheel assembly comprises a driving wheel disc provided with a cable and a hydraulic cylinder assembly, the hydraulic cylinder assembly drives the driving wheel disc to rotate bidirectionally, the plurality of test wheel assemblies are arranged between the driving wheel disc and the tensioning wheel assembly, used for changing the leading-out direction and angle of the cable, the tension wheel component is arranged on the platform in a sliding way, used for tensioning cables arranged on the driving wheel component, the plurality of test wheel components and the tensioning wheel component, the hydraulic cylinder assembly drives the driving wheel disc to rotate in two directions, so that the test wheel assembly and the tension wheel assembly rotate back and forth and rub with cables on the test wheel assembly and the tension wheel assembly to test the bending wear performance of the cables.

Furthermore, the hydraulic cylinder assembly comprises a hydraulic cylinder, a push-pull rod, a sliding block and a slide way, the hydraulic cylinder is fixed with the sliding block, the sliding block is correspondingly arranged in the slide way, the sliding block is fixed with the push-pull rod, the other end of the push-pull rod is fixedly connected to the driving wheel disc, the hydraulic cylinder drives the sliding block to move back and forth, and then the push-pull rod drives the driving wheel disc to rotate in two directions.

Furthermore, the tensioning wheel assembly comprises a sliding platform, a second hydraulic cylinder and a tensioning wheel, the tensioning wheel is rotatably arranged on the sliding platform, the sliding platform is arranged on the platform through a sliding rail, the second hydraulic cylinder is fixedly connected with the sliding platform, and the second hydraulic cylinder drives the sliding platform to move on the sliding rail, so that a cable arranged on the tensioning wheel is tensioned.

Further, the tensioning wheel assembly further comprises a compensation system for dynamically compensating the force provided by the second hydraulic cylinder to ensure constant tension is provided.

Further, the rotating circumference of the driving wheel disc is at least one half of the circumference of the tension wheel.

Furthermore, the test wheel assembly comprises a driven wheel disc, a plurality of guide wheels are further arranged between the driven wheel disc and the driving wheel disc, and the guide wheels are used for supporting cables.

Furthermore, the driving wheel disc, the driven wheel disc, the tension wheel and the guide wheel are all provided with wheel grooves, and all the wheel grooves are located on the same plane.

Furthermore, the wheel grooves on the driving wheel disc, the driven wheel disc and the tension wheel are detachable wheel grooves.

Further, a bracket is arranged between the tension wheel and the corresponding driven wheel disc and used for supporting the submarine cable when the submarine cable is not tensioned.

Further, the tensioning wheel assembly further comprises a third end cover, the third end cover is arranged above the tensioning wheel, the third end cover and the tensioning wheel are coaxially arranged, and a gap between the cable and the third end cover is smaller than the diameter of the cable.

Above-mentioned cable test platform can carry out effectual test to the crooked wearing and tearing of cable, and keeps the tension of cable through the take-up pulley subassembly, guarantees the accuracy of test, sets up the direction angle that a plurality of experimental wheel subassemblies can adjust cable and experimental wheel subassembly and take-up pulley subassembly, is suitable for the test of multiple different angles, and the suitability is strong.

Drawings

Fig. 1 is a schematic structural diagram of a submarine cable testing platform according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a driving wheel assembly of the submarine cable testing platform shown in fig. 1.

Fig. 3 is a schematic view of the angle of rotation of the drive wheel assembly shown in fig. 2.

Description of the main elements

Sea cable	101
		Cable test platform	100
Platform	10
		Driving wheel assembly	20
Active wheel disc	21
		Hydraulic cylinder assembly	25
Hydraulic cylinder	251
		Push-pull rod	253
Sliding block	255
		Rotating shaft	27
Test wheel assembly	30
		Driven wheel disc	31
Second end cap	33
		Second axis of rotation	35
Tension wheel assembly	40
		Sliding platform	41
Sliding rail	411
		Second hydraulic cylinder	43
Tension wheel	45
		Third end cap	47
Third rotating shaft	49
		Guide wheel	50

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the cable testing platform 100 shown in fig. 1 is used for performing bending and abrasion tests on a submarine cable 101, the cable testing platform 100 includes a platform 10, a driving wheel assembly 20, a plurality of testing wheel assemblies 30, a tensioning wheel assembly 40, and a plurality of guide wheels 50, and the driving wheel assembly 20, the plurality of testing wheel assemblies 30, the tensioning wheel assembly 40, and the plurality of guide wheels 50 are all mounted on the platform 10.

The driving wheel assembly 20 comprises a driving wheel disc 21, a first end cover (not shown), a hydraulic cylinder assembly 25 and a rotating shaft 27, wherein the driving wheel disc 21 is arranged on the platform 10 above the driving wheel disc 21 through the rotating shaft 27. The hydraulic cylinder assembly 25 is connected with the active wheel disc 21 and is used for driving the active wheel disc 21 to rotate.

The driving wheel disc 21 is provided with a wheel groove (not shown), the wheel groove is provided with at least two openings, and the openings are respectively used for penetrating through two ends of a submarine cable. The wheel groove upper portion and the lower part still are equipped with the strengthening rib, and the both ends of submarine cable twine respectively on upper portion strengthening rib and the lower part strengthening rib and fixed for avoid submarine cable intercrossing. In one embodiment, the two ends of the submarine cable can be connected with a matched tester after being fixed on the reinforcing rib to perform photoelectric performance test.

The first end cover is arranged above the rotating wheel disc 21 through the rotating shaft 27, three fixing portions are arranged on the first end cover, the fixing portions are fixed on the platform 10 respectively, and the first end cover is used for fixing the position of the rotating wheel disc 21 to prevent the first end cover from vibrating when rotating.

The hydraulic cylinder assembly 25 includes a hydraulic cylinder 251, a push-pull rod 253, a sliding block 255, and a sliding way (not numbered), the hydraulic cylinder is fixed to the sliding block 255, the sliding block 255 is fixed to the push-pull rod 253, the other end of the push-pull rod 253 is fixedly connected to the active wheel disc 21, the sliding block 255 is correspondingly disposed in the sliding way, and when the hydraulic cylinder 251 drives the sliding block 255 to move, the push-pull rod 253 drives the active wheel disc 21 to rotate bidirectionally. Specifically, when the hydraulic cylinder 251 pushes the sliding block 255 outwards, the push-pull rod 253 drives the driving wheel disc 21 to rotate clockwise, and when the hydraulic cylinder 251 pulls the sliding block 255 inwards, the push-pull rod 253 drives the driving wheel disc 21 to rotate anticlockwise, so that the driving wheel disc 21 is controlled to rotate repeatedly in two directions, the test wheel assembly 30 and the tension wheel assembly 40 rotate back and forth, and the test wheel assembly and the tension wheel assembly 40 rub against cables thereon, so as to test the bending wear performance of the cables. In one embodiment, the push-pull rod 253 is pivoted at an angle greater than 40 ° to the fixed end of the actuator disk 21.

The test wheel assembly 30 includes a driven wheel disc 31, a second end cap 33, and a second rotational shaft 35. The driven wheel disc 31 is arranged on the platform 10 through the second rotating shaft 35, and the second end cover 33 is arranged coaxially with and above the driven wheel disc 31 and is used for fixing the driven wheel disc 31. The driven wheel disc 31 is provided with wheel grooves for placing submarine cables, and the driven wheel disc 31 is an integral mechanism, so that the submarine cables can be rapidly replaced conveniently to adapt to different cable diameters. The driven wheel disc 31 with still between the initiative wheel disc 21 leading wheel 50, leading wheel 50 is used for supporting the submarine cable, avoids the submarine cable to be lax form because of the dead weight, influences the test effect. In one embodiment, the number of test wheel assemblies 30 is two. It will be appreciated that the number of trial wheel assemblies 30 is adjusted according to the particular submarine cable length and angle of test.

The tension pulley assembly 40 includes a sliding platform 41, a second hydraulic cylinder 43, a tension pulley 45, and a third end cap 47. The sliding platform 41 is arranged on the platform 10 through a sliding rail 411, the second hydraulic cylinder 43 is fixedly connected with the sliding platform 41, and the second hydraulic cylinder 43 drives the sliding platform 41 to move on the sliding rail 411, so that the submarine cable is tensioned. In one embodiment, the second hydraulic cylinder 43 provides a constant tension, and the tension wheel assembly 40 further comprises a compensation system for dynamically compensating the force provided by the second hydraulic cylinder 43 to ensure that a constant tension is provided. The tension pulley 45 and the third end cover 47 are mounted on the slide table 41 via a third rotation shaft 49. The third end cover 47 is disposed above the tension wheel 45, and is used for fixing the tension wheel 45. In one embodiment, the clearance between the sea cable and said third end cap 47 is smaller than the diameter of the cable, preventing the cable from jumping out of the clearance. The tensioning wheel 45 is provided with a detachable wheel groove which is composed of multiple parts and is convenient to detach and install, and the material and the size of the wheel groove can be adjusted according to actual needs and are used for being suitable for cables with different diameters and simulating different working conditions. In an embodiment, a bracket is further disposed between the tension wheel 45 and the corresponding driven wheel disc 31, and the bracket is used for supporting the submarine cable when the submarine cable is not tensioned, so as to avoid the problem of high installation difficulty due to the self weight of the submarine cable, and the submarine cable does not contact with the bracket after the submarine cable is tensioned.

It can be understood that, in order to ensure the test effect, the rotating circumference of the driving wheel disc 21 is not less than half of the circumference of the tension wheel 45, so as to ensure the length of the effective test section.

It can be understood that, in order to ensure the testing effect, the grooves on the driving wheel disc 21, the driven wheel disc 31, the tension wheel 45 and the guide wheel 50 are all located on the same plane.

It is understood that the grooves on the driving wheel disc 21, the driven wheel disc 31, the tension wheel 45 and the guide wheel 50 can be detachable.

It will be appreciated that the cable testing platform 100 is not limited to testing only the bending and wear of sea cables.

As shown in fig. 2, in an embodiment, the test requirements are that the submarine cable is deflected 90 ° from the leading direction of the driven sheave 31, deflected 180 ° from the leading direction of the tension pulley 45, and deflected 90 ° from the leading direction of the other driven sheave 31 and then returned to the driving sheave 21, the guide pulley 50 is disposed between the driving sheave 21 and the driven sheave 31, the maximum effective test length is half of the circumference of the tension pulley 45, wherein the diameter R1 of the tension pulley 45 is 1400mm, the diameter R2 of the driving sheave 21 is 3000mm, the length L1 of the push-pull rod 253 is 2250mm, the distance L3 from the center of the driving sheave 21 to the fixed end of the push-pull rod 253 is 850mm, the rotation angle L2 of the driving sheave 21 is R1 × pi/2, the minimum rotation angle α 1 of the driving sheave 21 is 360 ° × L/(pi × R2), the rotation angle of the driving sheave 21 is designed to be 85.9, the rotation angle of the driving sheave 21 is calculated as two rotation angles, and the two rotation angles of the rotation angle of the driving sheave 253, which are calculated at the two rotation angle of the driving sheave 3, the two rotation angle of the driving sheave 253, the driving sheave 3, the two rotation angle of the driving sheave 3, the two rotation angle of the driving:

the stroke S of the hydraulic cylinder is C2-C1 is 1200 mm. Therefore, the stroke of the hydraulic cylinder can be accurately set, the composite setting requirement of the test process is ensured, and the accuracy of the test result is ensured. It is understood that other sizes of capstan, tensioner, etc. are equally suitable for use in the above method.

Above-mentioned cable test platform can carry out effectual test to the crooked wearing and tearing of cable, and keeps the tension of cable through take-up pulley subassembly, guarantees the accuracy of test, sets up a plurality of leading wheels and is suitable for the test of multiple different angles from the driving wheel dish, is suitable for the cable of multiple different diameters through dismantlement formula race design, and the suitability is strong.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims

1. The utility model provides a cable test platform for the crooked wearability of test cable, its characterized in that: including the platform, rotate set up in initiative wheel subassembly, a plurality of experimental wheel subassemblies and tensioning wheel subassembly on the platform, the action wheel subassembly is including installing initiative rim plate and the pneumatic cylinder subassembly of cable, hydraulic cylinder subassembly drive initiative rim plate both way rotation, a plurality of experimental wheel subassemblies set up in initiative rim plate with between the tensioning wheel subassembly for change the derivation direction and the angle of cable, the tensioning wheel subassembly slide set up in on the platform, be used for making the cable tensioning of setting on initiative wheel subassembly, a plurality of experimental wheel subassemblies and tensioning wheel subassembly, hydraulic cylinder subassembly drive action rim plate both way rotation makes go up the round trip to rotate on experimental wheel subassembly and the tensioning wheel subassembly, takes place the friction with the cable on it to test cable bending wear performance.

2. The cable testing platform of claim 1, wherein the hydraulic cylinder assembly comprises a hydraulic cylinder, a push-pull rod, a sliding block and a slide way, the hydraulic cylinder is fixed to the sliding block, the sliding block is correspondingly arranged in the slide way, the sliding block is fixed to the push-pull rod, the other end of the push-pull rod is fixedly connected to the driving wheel disc, the hydraulic cylinder drives the sliding block to move back and forth, and the push-pull rod drives the driving wheel disc to rotate in two directions.

3. The cable testing platform of claim 1, wherein the tensioning wheel assembly comprises a sliding platform, a second hydraulic cylinder and a tensioning wheel, the tensioning wheel is rotatably disposed on the sliding platform, the sliding platform is disposed on the platform through a slide rail, the second hydraulic cylinder is fixedly connected to the sliding platform, and the second hydraulic cylinder drives the sliding platform to move on the slide rail to tension the cable disposed on the tensioning wheel.

4. The cable testing platform of claim 3, wherein the tension wheel assembly further comprises a compensation system for dynamically compensating the force provided by the second hydraulic cylinder to ensure a constant tension is provided.

5. The cable test platform of claim 3, wherein the active wheel has a rotational circumference of at least one-half of the circumference of the tension wheel.

6. The cable testing platform of claim 3, wherein the testing wheel assembly comprises a driven wheel disc, and a plurality of guide wheels are arranged between the driven wheel disc and used for supporting the cable.

7. The cable testing platform of claim 6, wherein the driving wheel, the driven wheel, the tension wheel and the guide wheel are provided with wheel grooves, and all the wheel grooves are located on the same plane.

8. The cable test platform of claim 6, wherein the grooves on the active wheel, the passive wheel, and the tension wheel are removable grooves.

9. The cable testing platform of claim 6, wherein a bracket is further provided between the tension pulley and the corresponding driven wheel, and the bracket is used for supporting the submarine cable when the submarine cable is not tensioned.

10. The cable testing platform of claim 3, wherein the tension wheel assembly further comprises a third end cap disposed above the tension wheel, the third end cap being disposed coaxially with the tension wheel, a gap between the cable and the third end cap being smaller than a diameter of the cable.