CN212621986U - Winding test device of fiber reinforced composite bar - Google Patents
Winding test device of fiber reinforced composite bar Download PDFInfo
- Publication number
- CN212621986U CN212621986U CN202021567439.XU CN202021567439U CN212621986U CN 212621986 U CN212621986 U CN 212621986U CN 202021567439 U CN202021567439 U CN 202021567439U CN 212621986 U CN212621986 U CN 212621986U
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- Prior art keywords
- sample
- wheel
- winding
- coiling
- reinforced composite
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000004804 winding Methods 0.000 title claims abstract description 74
- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 239000003733 fiber-reinforced composite Substances 0.000 title claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract 10
- 230000007246 mechanism Effects 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- 238000002474 experimental method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 12
- 230000006378 damage Effects 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a winding test device of fiber reinforced composite material bar, which comprises a protective cover and a winding device, wherein the winding device comprises a driving part and a winding wheel with adjustable diameter, a tightening device is also arranged on the winding wheel, a sample leading-in device is arranged in the protective cover, and a controller is also arranged on the outer side wall of the protective cover; the utility model has the advantages that: realize the coiling experiment of sample through drive division drive coiling wheel, because the diameter of coiling wheel is adjustable, therefore, can effectively adjust according to the diameter of sample, can not only make the coiling wheel can guarantee the coiling performance of sample in coiling experiment, and can provide the best coiling radius to the sample, thereby the degree of accuracy of test result has been improved, secondly, be equipped with the clamping device who presss from both sides tight sample on the coiling wheel, can guarantee the fixed quality of sample at the coiling in-process, avoid the radial and horizontal rocking of coiling in-process sample, the efficiency of coiling has been improved.
Description
Technical Field
The utility model relates to a coiling test device of fibre reinforced composite rod.
Background
With the further improvement of the urbanization process of China, the land resources are more and more strained, and the selection of the overhead transmission line corridor is greatly restricted. For the increase of the current demand, the requirement of line capacity expansion and the requirement of environmental protection, if the overhead line still adopts the common steel-cored aluminum stranded wire, the technical requirement can not be met, and in order to safely and reliably transmit more electric power, scientific and technological workers in various countries are dedicated to continuously searching for new wires for the overhead transmission line.
The carbon fiber/glass fiber reinforced composite wire is a novel wire with superior performance, wherein the carbon fiber formed by the fire-resistant treatment and carbonization of polyamide is taken as the center, the glass fiber and the single core rod formed by the coating of the epoxy resin with high strength and high toughness are coated on the single core rod, and the outer layer of the wire and the outer layer of the aluminum wire strand are both trapezoidal sections. The novel energy-saving water-saving pipeline has the advantages of light weight, high strength, high temperature resistance, corrosion resistance, high current-carrying capacity, low sag, long service life and the like, and meanwhile, has a simple structure, is convenient to erect and maintain, and is beneficial to crossing over special geographical positions such as rivers, valleys and the like.
For the transportation and the erection of making things convenient for the transmission line stranded conductor, often convolute the stranded conductor of plug on the drum, however carbon fiber/glass fiber increase composite plug elastic modulus height, the percentage elongation is low, if the too big suspicion that has the extravagant space of disc diameter that uses, and the too little plug of disc diameter can take place to peel off with the glass fiber extexine in the carbon fiber sandwich layer in coiling process, the fracture destruction phenomenon appears.
SUMMERY OF THE UTILITY MODEL
The utility model aims to reach the purpose provides a coiling test device of fibre reinforced composite rod, can adapt to the plug of different diameters experimental, the quality of assurance test.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a coiling test device of fibre reinforced composite rod, includes protection casing and take-up device, take-up device includes drive division and diameter adjustable coiling wheel, the drive division sets up in the protection casing, the coiling wheel is connected with the drive division transmission, still be equipped with the device that steps up that is used for pressing from both sides tight sample on the coiling wheel, be equipped with the sample leading-in device of adjustment sample feed angle in the protection casing, still be equipped with the controller that links to each other with the take-up device on the protection casing lateral wall.
Preferably, the winding wheel includes cam wheel dish, rim plate and spoke, the cam wheel dish rotates to be connected and is joined in marriage at the wheel, be equipped with the guide rail in the rim plate, spoke swing joint is on the guide rail, be equipped with the cam lever on the spoke, be equipped with on the cam wheel dish and supply the gliding arc spout of cam lever, just still be equipped with the lock nut who is used for locking the cam wheel dish on the cam lever, the drive division includes support and the driving motor who sets up on the support, driving motor passes through gear drive subassembly with the winding wheel and is connected with the rim plate.
Preferably, the tightening device includes the connector and tightens the cover, it includes cover tail and pullover to tighten the cover, the one end and the spoke of connector link to each other, the cover tail sets up the other end at the connector, it perforates to be equipped with the sample on the pullover, be equipped with first bolt on the cover tail, rely on the pretightning force of first bolt and realize fixing and loosen when the sample passes the sample and perforates.
Preferably, the one end of connector is equipped with the connecting hole that links to each other with the spoke, the other end of connector is equipped with the installation the holding hole of cover tail, the cover tail is equipped with the screw that links to each other with first bolt, still be equipped with the packing ring on the first bolt, the packing ring sets up between first bolt and connector.
Preferably, the sample introduction device comprises a vertical base, a front guide mechanism and a rear guide mechanism, the front guide mechanism is fixedly connected to the vertical base, and the rear guide mechanism is detachably connected to the vertical base.
Preferably, an adjusting hole for adjusting the height of the rear guide mechanism is formed in the vertical direction of the vertical seat.
Preferably, the front guide mechanism and the rear guide mechanism respectively comprise a base, a polished rod, an upper guide wheel and a lower guide wheel, the lower guide wheel is fixedly connected to the base, a hand wheel connected with the upper guide wheel is arranged on the base, a rolling bearing connected with the polished rod is arranged on the base, and the polished rod is arranged on the vertical seat.
Preferably, the two ends of the polish rod are provided with anti-drop covers.
Preferably, a camera is further arranged in the protective cover, and a monitor connected with the camera is further arranged on the outer side wall of the protective cover.
Preferably, the outer side wall of the protective cover is further provided with a distribution box, and the distribution box is connected with the camera, the monitor, the controller and the winding device respectively.
To sum up, the utility model has the advantages that: the winding wheel is driven by the driving part to realize the winding test of the sample, the diameter of the winding wheel is adjustable, so that the winding wheel can be effectively adjusted according to the diameter of the sample, the winding performance of the sample can be ensured in the winding test by the winding wheel, the optimal winding radius can be provided for the sample, the accuracy of a test result is improved, secondly, the winding wheel is provided with a clamping device for clamping the sample, the fixed quality of the sample in the winding process can be ensured, the radial and transverse shaking of the sample in the winding process can be avoided, the winding efficiency is improved, the feeding angle of the sample can be effectively adjusted by the arrangement of the sample leading-in device, the shaking of the sample in the feeding process can be automatically adjusted, then, the winding device and the sample leading-in device are both arranged in the protective cover, and the test process can perform certain protection operation on the sample, the damage of the test sample to the operator caused by breakage and damage in the test process is avoided, the safety performance in the test is improved, finally, the controller is arranged on the outer side wall of the protective cover, the winding speed and the number of winding turns of the winding device can be set through the controller, and therefore the test accuracy is improved.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of a winding test device for a fiber reinforced composite bar according to the present invention;
fig. 2 is a schematic structural view of a sample introduction device according to the present invention;
FIG. 3 is a schematic structural view of a winding device according to the present invention;
FIG. 4 is a schematic view of a winding wheel;
FIG. 5 is a schematic structural view of a clamping device;
fig. 6 is a cross-sectional view a-a of fig. 5.
Reference numerals:
1 sample, 2 protective covers, 3 winding devices, 4 sample introduction devices, 5 controllers, 6 monitors, 7 cameras and 8 distribution boxes;
401, a vertical seat, 402, a lower guide wheel, 403, an upper guide wheel, 404, a front guide mechanism, 405, a hand wheel, 406, an adjusting hole, 407, a polish rod, 408, a rear guide mechanism, 409, a rolling bearing, 410, an anti-dropping cover and 411 bolts;
301 winding wheel, 302 clamping mechanism, 303 driving motor, 304 support, 305 cam wheel disc, 306 wheel disc, 307 spoke, 308 lock nut, 309 installation hole, 310 connector, 311 clamping sleeve, 312 connecting hole, 313 sleeve head, 314 sample perforation, 315 screw hole, 316 sleeve tail, 317 washer, 318 bolt, 319 containing hole.
Detailed Description
As shown in fig. 1, 2, 3, 4, 5, and 6, a winding test device for a fiber reinforced composite bar includes a protective cover 2 and a winding device 3, where the winding device 3 includes a driving part and a winding wheel 301 with an adjustable diameter, the diameter of the winding wheel 301 in this embodiment can be arbitrarily adjusted between 300 mm and 1200mm, the driving part is disposed in the protective cover 2, the winding wheel is in transmission connection with the driving part, a tightening device 302 for clamping a sample 1 is further disposed on the winding wheel 301, a sample introduction device 4 for adjusting the feeding angle of the sample 1 is disposed in the protective cover 2, and a controller 5 connected with the winding device 3 is further disposed on the outer side wall of the protective cover 2.
The winding wheel 301 is driven by the driving part to realize the winding test of the sample 1, the diameter of the winding wheel 301 is adjustable, so that the winding wheel can be effectively adjusted according to the diameter of the sample 1, the winding performance of the sample 1 can be ensured in the winding test of the winding wheel 301, and the optimal winding radius can be provided for the sample 1, so that the accuracy of a test result is improved, secondly, a clamping device 302 for clamping the sample 1 is arranged on the winding wheel 301, the fixed quality of the sample 1 in the winding process can be ensured, the radial and transverse shaking of the sample 1 in the winding process can be avoided, the winding efficiency is improved, the feeding angle of the sample 1 can be effectively adjusted by arranging the sample leading-in device 4, the shaking of the sample 1 in the feeding process can be automatically adjusted, and then, the winding device 3 and the sample leading-in device 4 are both arranged in the protective cover 2, the test process can play certain protection operation to sample 1, has avoided 1 fracture of test in-process sample, damage and to the harm that operating personnel caused, the security performance when having improved the experiment, and at last, sets up controller 5 on protection casing 2 lateral wall, can set up the winding speed and the number of turns of convoluteing of coiling mechanism 3 through controller 5 to experimental degree of accuracy has been improved.
The winding wheel 301 comprises a cam wheel disc 305, a wheel disc 306 and a spoke 307, the cam wheel disc 305 is rotatably connected to a wheel assembly, a guide rail (not shown in the figure) is arranged in the wheel disc 306, the spoke 307 is movably connected to the guide rail, a cam rod (not shown in the figure) is arranged on the spoke 307, an arc-shaped chute for the cam rod to slide is arranged on the cam wheel disc 305, a locking nut 308 for locking the cam wheel disc 305 is further arranged on the cam rod, the driving part comprises a support 304 and a driving motor 303 arranged on the support 304, the driving motor 303 and the winding wheel 301 are connected with the wheel disc 306 through a gear transmission assembly, when the winding wheel is used, the locking nut 308 is firstly loosened, then an operator manually rotates the cam wheel disc 305, the cam wheel disc 305 rotates to drive the cam rod to move in the arc-shaped chute, when the cam wheel disc 305 rotates clockwise, the cam rod moves outwards along the arc-shaped, at this moment, the cam rod drives the spoke 307 to move outwards, thereby increasing the diameter of the whole winding wheel 301, when the cam wheel disc 305 rotates anticlockwise, the cam rod moves towards the center of the cam wheel disc 305 along the arc-shaped sliding groove, at this moment, the cam rod drives the spoke 307 to move inwards, at this moment, the diameter of the whole winding wheel 301 can be reduced, after adjustment, the fixed quality of the cam wheel disc 305 can be ensured only by screwing the lock nut 308, secondly, the driving part is set into the bracket 304 and the driving motor 303, the bracket 304 can realize that the driving motor 303 is stably installed in the protective cover 2, the driving motor 303 can drive the quick rotation of the winding wheel 301, the driving motor 303 in the embodiment can adopt a servo motor, and the gear transmission assembly can adopt a worm gear transmission assembly or a helical gear transmission assembly.
The tightening device 302 comprises a connecting head 310 and a tightening sleeve 311, the tightening sleeve 311 comprises a sleeve tail 316 and a sleeve head 313, one end of the connecting head 310 is connected with a spoke 307, the sleeve tail 316 is arranged at the other end of the connecting head 310, a sample perforation 314 is arranged on the sleeve head 313, a first bolt 318 is arranged on the sleeve tail 316, when a sample 1 passes through the sample perforation 314, fixing and loosening are achieved through the pretightening force of the first bolt 318, when the sample 1 is installed, the sample 1 passes through the sample perforation 314, the exposed length of the sample 1 is not less than 100mm, then the first bolt 318 is screwed, one end of the connecting head 310 is connected with the spoke 307, the tightening device 302 can be adjusted along with the adjustment of the spoke 307, the quality of the sample 1 during winding is guaranteed, secondly, the pretightening force is improved for the sample 1 through the first bolt 318, the sample 1 can have certain tension, one end of the connecting head 310 is provided with a connecting hole 312 connected with the spoke 307, the spoke 307 is provided with a mounting hole 309 matched with the connecting hole 312, the connecting head 310 is mounted on the spoke 307 through a screw, the other end of the connecting head 310 is provided with a containing hole 319 for mounting the sleeve tail 316, the sleeve tail 316 is provided with a screw hole 315 connected with the first bolt 318, the first bolt 318 is further provided with a gasket 317, the gasket 317 is arranged between the first bolt 318 and the connecting head 310, the connecting head 310 can be accurately positioned and mounted on the spoke 307 through the screw, the fixing quality of the tightening device 302 during a winding test is guaranteed, the tightening sleeve 311 can be replaced according to sample 1 of different specifications, and the sample 1 can be wound on the spoke 307 along a tangent line.
The sample introduction device 4 comprises a vertical base 401, a front guide mechanism 404 and a rear guide mechanism 408, the front guide mechanism 404 is fixedly connected to the vertical base 401, the rear guide mechanism 408 is detachably connected to the vertical base 401, the height of the rear guide mechanism 408 on the vertical base 401 can be effectively adjusted through the detachable connection of the rear guide mechanism 408 and the vertical column, so that the feeding angle of the sample 1 is rapidly adjusted, the front guide mechanism 404 and the rear guide mechanism 408 both comprise a base, a polished rod 407, an upper guide wheel 403 and a lower guide wheel 402, the lower guide wheel 402 is fixedly connected to the base, the base is provided with a hand wheel 405 connected with the upper guide wheel 403, the base is provided with a rolling bearing 409 connected with the polished rod 407, the polished rod 407 is mounted on the vertical base 401, and during the test, the sample 1 is pressed or loosened by adjusting the clamping force between the upper guide wheel 403 and the lower guide wheel 402 through the hand wheel 405, secondly, the whole front guide mechanism 404 and the whole rear guide mechanism 408 can freely rotate on the polished rod 407 through a rolling bearing 409, so that the shaking generated in the feeding process of the sample 1 can be automatically adjusted, finally, the upper guide wheel 403 and the lower guide wheel 402 can not only be used for guiding the sample 1, but also can apply certain friction resistance to the sample 1, an adjusting hole 406 for adjusting the height of the rear guide mechanism 408 is arranged in the vertical direction of the vertical seat 401, the quick installation and fixation of the rear guide mechanism 408 are convenient, the height of the rear guide mechanism 408 can be effectively adjusted, in addition, the whole rear guide mechanism 408 can freely rotate on the polished rod 407, so that the sample 1 can be tangentially rolled into the winding device 3 in a linear state, the two ends of the polished rod 407 are provided with anti-falling covers 410, the fixed quality of the polished rod 407 during the test can be ensured, and the front guide mechanism 404 and the rear guide mechanism 408 are prevented from falling off, in the installation process, the anti-falling cover 410 is provided with a second bolt 411, so that the fixing quality of the anti-falling cover is ensured.
Still be equipped with camera 7 in the protection casing 2, still be equipped with the monitor 6 that links to each other with camera 7 on the 2 lateral walls of protection casing, can pass through the video when the real-time shooting sample 1 of camera 7 convolutes to show in the tester in the front of the eyes through monitor 6, make things convenient for the audio-visual condition of obtaining sample 1 test of tester, guarantee experimental security performance, still be equipped with block terminal 8 on the 2 lateral walls of protection casing, block terminal 8 links to each other with camera 7, monitor 6, controller 5 and take-up device 3 respectively, can guarantee camera 7, monitor 6, controller 5 and take-up device 3's continuity power supply, guarantee experimental reliability.
In addition to the preferred embodiments described above, other embodiments of the present invention are also possible, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the appended claims.
Claims (10)
1. The utility model provides a coiling test device of fibre reinforced composite rod which characterized in that: including protection casing and take-up device, take-up device includes drive division and diameter adjustable coiling wheel, the drive division sets up in the protection casing, the coiling wheel is connected with the drive division transmission, still be equipped with the clamping device who is used for pressing from both sides tight sample on the coiling wheel, be equipped with the sample gatherer of adjustment sample feed angle in the protection casing, still be equipped with the controller that links to each other with take-up device on the protection casing lateral wall.
2. The winding test device of the fiber reinforced composite material bar according to claim 1, wherein: the winding wheel comprises a cam wheel disc, a wheel disc and a spoke, the cam wheel disc is rotatably connected to the wheel assembly, a guide rail is arranged in the wheel disc, the spoke is movably connected to the guide rail, a cam rod is arranged on the spoke, an arc-shaped sliding groove for the cam rod to slide is formed in the cam wheel disc, a locking nut for locking the cam wheel disc is further arranged on the cam rod, the driving portion comprises a support and a driving motor arranged on the support, and the driving motor and the winding wheel are connected with the wheel disc through a gear transmission assembly.
3. The winding test device of the fiber reinforced composite material bar according to claim 2, wherein: the tightening device comprises a connector and a tightening sleeve, the tightening sleeve comprises a sleeve tail and a sleeve head, one end of the connector is connected with the spoke, the sleeve tail is arranged at the other end of the connector, a sample perforation is arranged on the sleeve head, a first bolt is arranged on the sleeve tail, and the sample is fixed through the tightness of the bolt when passing through the sample perforation.
4. The winding test device of the fiber reinforced composite material bar according to claim 3, wherein: the one end of connector is equipped with the connecting hole that links to each other with the spoke, the other end of connector is equipped with the installation the holding hole of cover tail, the cover tail is equipped with the screw that links to each other with first bolt, still be equipped with the packing ring on the first bolt, the packing ring sets up between first bolt and connector.
5. The winding test device of the fiber reinforced composite material bar according to claim 1, wherein: the sample leading-in device comprises a vertical seat, a front guide mechanism and a rear guide mechanism, wherein the front guide mechanism is fixedly connected to the vertical seat, and the rear guide mechanism is detachably connected to the vertical seat.
6. The winding test device of the fiber reinforced composite material bar according to claim 5, wherein: the front guide mechanism and the rear guide mechanism respectively comprise a base, a polished rod, an upper guide wheel and a lower guide wheel, the lower guide wheel is fixedly connected onto the base, a hand wheel connected with the upper guide wheel is arranged on the base, a rolling bearing connected with the polished rod is arranged on the base, and the polished rod is installed on the vertical seat.
7. The winding test device of the fiber reinforced composite material bar according to claim 6, wherein: and an adjusting hole for adjusting the height of the rear guide mechanism is formed in the vertical direction of the vertical seat.
8. The winding test device of the fiber reinforced composite material bar according to claim 7, wherein: anti-drop covers are installed at two ends of the polish rod.
9. The winding test device of the fiber reinforced composite material bar according to claim 1, wherein: still be equipped with the camera in the protection casing, still be equipped with the monitor that links to each other with the camera on the protection casing lateral wall.
10. The winding test device of the fiber reinforced composite material bar according to claim 9, wherein: the outer side wall of the protective cover is also provided with a distribution box, and the distribution box is respectively connected with the camera, the monitor, the controller and the winding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021567439.XU CN212621986U (en) | 2020-08-01 | 2020-08-01 | Winding test device of fiber reinforced composite bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021567439.XU CN212621986U (en) | 2020-08-01 | 2020-08-01 | Winding test device of fiber reinforced composite bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212621986U true CN212621986U (en) | 2021-02-26 |
Family
ID=74729322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021567439.XU Withdrawn - After Issue CN212621986U (en) | 2020-08-01 | 2020-08-01 | Winding test device of fiber reinforced composite bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212621986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766159A (en) * | 2020-08-01 | 2020-10-13 | 杭州御兴科技有限公司 | Winding test device of fiber reinforced composite bar |
| CN116900201A (en) * | 2023-07-15 | 2023-10-20 | 大征电线有限责任公司 | Bending and adjusting device for stranded steel-cored aluminum strand |
-
2020
- 2020-08-01 CN CN202021567439.XU patent/CN212621986U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766159A (en) * | 2020-08-01 | 2020-10-13 | 杭州御兴科技有限公司 | Winding test device of fiber reinforced composite bar |
| CN111766159B (en) * | 2020-08-01 | 2024-08-13 | 杭州御兴科技有限公司 | Winding test device for fiber reinforced composite bar |
| CN116900201A (en) * | 2023-07-15 | 2023-10-20 | 大征电线有限责任公司 | Bending and adjusting device for stranded steel-cored aluminum strand |
| CN116900201B (en) * | 2023-07-15 | 2024-02-27 | 大征电线有限责任公司 | Bending and adjusting device for stranded steel-cored aluminum strand |
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