CN218481314U - Mechanical physical property testing device and system for electric wire and optical cable - Google Patents
Mechanical physical property testing device and system for electric wire and optical cable Download PDFInfo
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- CN218481314U CN218481314U CN202222487950.4U CN202222487950U CN218481314U CN 218481314 U CN218481314 U CN 218481314U CN 202222487950 U CN202222487950 U CN 202222487950U CN 218481314 U CN218481314 U CN 218481314U
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Abstract
The utility model provides a mechanical physical properties test equipment for wire and cable and optical cable, including main part pulling force device, main part pulling force device auxiliary connecting rod, perpendicular graticule appearance of infrared ray and formation of image record analysis appearance, the one end of main part pulling force device auxiliary connecting rod is connected in main part pulling force device, the perpendicular graticule appearance of infrared ray and formation of image record analysis appearance are installed on main part pulling force device auxiliary connecting rod, main part pulling force device includes lift body frame and base, the lift body frame includes clamping part, lifter and force sensor, the base includes drive arrangement, clamping part installs on lifter and base, force sensor installs on the base, the lifter links to each other with drive arrangement. Through comprehensive application infrared ray marking and the imaging technique of making a video recording, reduce the measuring error that personnel's operation brought, improve the precision of test result to the image of test process can be looked over and trained the use as the later stage backtracking.
Description
Technical Field
The utility model relates to a test technical field especially relates to a but test equipment and system of high accuracy of formation of image that is used for testing the mechanical physical properties of wire and cable and optical cable.
Background
Electric wires, cables and optical cables are widely used in the fields of electric power and communications, and most of them are laid outdoors or in a severe environment, so that they have high requirements for weather resistance. The relevant standards specify the mechanical and physical performance level as an important index for measuring the quality level (especially the weather resistance), and the accuracy of measuring equipment, the error of personnel operation and the like can influence the test result to a certain extent.
Most of current test equipment do not have perpendicular marking function, and stretch breaking is length measurement in the twinkling of an eye relies on handheld tape measure of measurer or self-control scale to carry out the reading of visualing mostly, consequently, has the sample under the uneven condition of out of plumb state, both sides atress, leads to test data littleer, also has the sample to be stretched to the fracture in the twinkling of an eye, and operator reaction time differs, read data inaccurate scheduling problem, influences the test result.
Based on this, a new solution is needed.
Disclosure of Invention
The utility model aims to provide a to the not enough problem of function that current be used for testing the mechanical physical properties's of wire and cable and optical cable test equipment exists, but provide a test equipment and system that is used for carrying out the high accuracy of formation of image that tests to the mechanical physical properties of wire and cable and optical cable, through using the standard scale comprehensively, the infrared ray marking and the imaging technique of making a video recording, reduce the measuring error that personnel's operation brought, improve the precision of test result, and the image of testing process can be looked over and trained the use as the later stage backtracking.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a mechanical physics performance test equipment for wire and cable and optical cable, includes main part tension device, main part tension device auxiliary connecting rod, the perpendicular graticule appearance of infrared ray and imaging record analysis appearance, the one end of main part tension device auxiliary connecting rod connect in main part tension device, the perpendicular graticule appearance of infrared ray with imaging record analysis appearance is installed on the main part tension device auxiliary connecting rod, main part tension device includes lift body frame and base, the lift body frame includes clamping part, lifter and force sensor, the base includes drive arrangement, clamping part installs the lifter with on the base, force sensor installs on the base, the lifter with drive arrangement links to each other.
Further, the clamping component comprises an upper clamp and a lower clamp which are respectively fixed on the lifting rod and the base.
Furthermore, the main body tension device further comprises a standard scale which is arranged right behind the main body tension device and is positioned between the upper clamp and the lower clamp.
Furthermore, the main body tension device also comprises an upper limiting device and a lower limiting device which are arranged on the inner side of the lifting main frame and used for limiting the movement range of the lifting rod.
Further, the base also comprises an ascending switch, a descending switch and an emergency stop switch.
Furthermore, the auxiliary connecting rod of the main body tension device is an L-shaped rod body, one end of the L-shaped rod body is connected to the upper end of the main body tension device, the infrared vertical line marking instrument and the imaging recording analyzer are installed at the other end of the L-shaped rod body, and the imaging recording analyzer is located above the infrared vertical line marking instrument.
Furthermore, the L-shaped rod body is connected with the upper end of the main body tension device through a rotating shaft.
According to another aspect of the present invention, there is also provided a mechanical physical property testing system for electric wire and optical cable, comprising the mechanical physical property testing apparatus for electric wire and optical cable and the display device as described above.
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) The measuring equipment with complete functions and high accuracy is provided, the defects of the existing measuring equipment are overcome, the two hands of a tester are liberated, and the measuring operation is simple and convenient;
(2) The method for confirming the vertical state of the sample is provided by the infrared vertical line marking instrument, the problem that a tester roughly judges the vertical state of the sample only by visual observation in the existing operation is avoided, the accuracy of the vertical state of the sample is improved, and the problem that the tensile force result is small due to uneven stress of the sample possibly caused by non-perpendicularity is solved;
(3) The imaging recording analyzer provides an accurate method for measuring the tensile fracture instant length of the sample, particularly the application of video frame images, the instant capture aging time is improved by more than 4 times compared with the audio-visual reaction time of a person, the human factor error caused by the visual reading error of a tester and the unequal reaction time of the tester facing the tensile fracture instant of the sample is avoided, and the accuracy of the length measurement is improved;
(4) The imaging record analyzer can synchronously record in the test process of the sample, so that the problems that the test process cannot be checked back and the process cannot be kept are solved, and the test flow is improved;
(5) Through being equipped with standard scale, provide sample length measurement's standard measuring tool, solved the problem that the surveyor used nonstandard measuring tool such as tape measure, self-control chi, improved standard measuring tool's the rate of utilization and the measurement level of testing process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts:
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the infrared vertical striping machine of the present invention showing infrared marking;
fig. 3 is a schematic diagram of the length reading between the marks at the moment of sample fracture recorded by the imaging analyzer of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Exemplary embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
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.
The utility model discloses general thinking is: the problem of the function that exists to the current test equipment that is used for testing the mechanical physical property of wire and cable and optical cable is not enough is provided one kind and is used for carrying out the high accuracy's of can forming images test equipment and system to the mechanical physical property of wire and cable and optical cable, through using standard scale, infrared ray marking and the imaging technique of making a video recording synthetically, reduce the measuring error that personnel's operation brought, improve the precision of test result, and the image of testing process can be looked over and trained the use as the later stage backtracking.
In order to better understand the technical solutions, the following detailed descriptions will be made with reference to the drawings and the specific embodiments of the specification, and it should be understood that the specific features in the embodiments and examples of the present invention are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present invention may be combined with each other without conflict.
Fig. 1 is a schematic structural diagram of a mechanical physical property testing system for electric wires and cables and optical cables according to the present invention. As shown in fig. 1, the utility model provides a performance testing system includes the test equipment and the display device 3 that comprise main part pulling force device 1, main part pulling force device auxiliary connecting rod 2, the perpendicular striping appearance of infrared ray 23, formation of image record analysis appearance 22.
Specifically, in an embodiment of the present invention, the main body pulling device 1 includes a lifting main frame 11 and a base 12, and the base 12 is installed at a lower portion of the lifting main frame 11. The lifting main frame 11 comprises a clamping component consisting of an upper clamp 113 and a lower clamp 116, a lifting rod 112, an upper limiting device 111, a lower limiting device 115, a standard graduated scale 114 and a tension sensor 117; the base 12 includes a drive 121, a raise switch 122, a lower switch 123, and an emergency stop switch 124.
Further, in an embodiment of the present invention, the upper clamp 113 and the lower clamp 116 are respectively fixed on the lifting rod 112 and the base 12, and the two opposite surfaces of the clamping sample have fine corrugations and the wave crest of one surface corresponds to the wave trough of the other surface, forming an S-shaped corrugated clamping surface with tight seams. The upper jig 113 and the lower jig 116 are used to fix the upper end and the lower end of the sample 4 to be tested, respectively; the lifting rod 112 is connected with the driving device 121 and can vertically lift between the upper limiting device 111 and the lower limiting device 115 under the driving of the driving device 121; the upper and lower stoppers 111 and 115 are installed inside one side of the main lifting frame 11 to limit the range of movement of the lifting rod 112, and the installation positions thereof are adjustable. The standard scale 114 is a millimeter scale, is installed right behind the main body tension device 1, is located at the vertical middle position of the upper clamp 113 and the lower clamp 116, and is used for measuring the length of the sample 4 at the moment of tensile fracture. A tension sensor 117 is mounted on the base 12 below the lower clamp 116 for collecting and transmitting tension applied to the lower clamp 116.
Further, in an embodiment of the present invention, the base 12 includes a built-in driving device 121, an ascending switch 122, a descending switch 123 and an emergency stop switch 124; the driving device 121 is used for driving the lifting rod 112; the ascending switch 122, the descending switch 123 and the emergency stop switch 124 are used for starting the ascending, descending and stopping of the ascending and descending rod 112 respectively.
Specifically, in an embodiment of the present invention, the main body pulling force device attachment link 2 includes an L-shaped rod body 21 composed of a vertically long rod and a horizontally short rod, and an infrared ray vertical line marking instrument 23 and an imaging recording analyzer 22 are installed on the end of the vertically long rod of the rod body. The tail end of the horizontal short rod is connected with the upper end of the main body tension device 1 through a rotating shaft, can rotate 180 degrees on the left side and the right side of the front face of the main body tension device 1, and is adjusted to the position right in front of the main body tension device 1 during testing. The infrared vertical striping machine 23 is arranged at the tail end of the rod body 21 and is used for marking and confirming the vertical state of the tested sample, and the infrared vertical striping machine switch 24 can emit vertical infrared rays as shown in figure 2 when being started; the imaging recording analyzer 22 is located above the infrared vertical striper 23, and performs image recording on the stretching condition of the sample 4 to be tested during the starting and stopping of the main body tension device 1.
Specifically, in an embodiment of the present invention, the display device 3 includes a display 31 and a connecting line 32; the display 31 is used for storing and displaying the parameters and videos acquired and recorded on the main body tension device 1 and the imaging record analyzer 22; the connecting wire 32 is used for connecting the main body tension device 1 and the display device 3 and plays a role in transmitting data, video and signals.
The utility model provides a mechanical physical properties test equipment for wire and cable and optical cable, device overall structure is brief, and is easy and simple to handle, can reduce the influence of factors such as tester visualing, manual operation and seeing and hearing stress response error, and the test is accurate, and whole record of making a video recording can be reexamined and traceed back, stay the shelves, and the mechanical physical properties that specially adapted wire and cable and optical cable are insulating and the sheath material is experimental.
The following elaboration utilizes the utility model provides a mechanical physical properties test equipment for electric wire and cable and optical cable tests test method, contains following step:
1 preparation of test specimens
And (3) taking the tested part out of the tested electric wire cable and optical cable, preparing at least 5 dumbbell test samples or tubular test samples according to the GB/T2951.11 standard requirements, and marking the test samples with a marked line. Length L of sample 4 0 75mm or 50mm, wherein the spacing L of the marking lines of the test piece 4 1 Corresponding to 20mm or 10mm.
2 installation sample
2.1 inching the descending switch 123 to descend the lifting rod 112 to the lower limiting device 115;
2.2 slightly clamping and installing the upper end of the prepared sample 4 on an upper clamp 113, and clamping the upper clamp after adjusting the vertical state;
2.3 slightly clamping and mounting the lower end of the sample 4 on a lower clamp 116, and clamping the lower clamp after adjusting the vertical state;
3 confirmation of vertical state of sample
3.1, rotating the auxiliary connecting rod 2 by 90 degrees to the right front of the main body tension device 1;
3.2 inching an infrared vertical striping machine switch 24 arranged on the auxiliary connecting rod 2, irradiating infrared rays 5 on the sample 4 by the vertical infrared chart 2 emitted by an infrared vertical striping machine 23 arranged on the auxiliary connecting rod 2, and comparing and confirming the vertical state of the sample 4;
3.3 if the sample is not vertical, repeat the above 2.2, 2.3 operations.
4 mechanical physical Property test
4.1 spacing the above-mentioned sign lines by L 1 The parameters and the thickness and width of the dumbbell sample or the external dimension and thickness of the tubular sample are recorded in a system of the display 31, wherein the lifting speed of the lifting rod can be set within the range of 0 mm/min-1000 mm/min according to the requirements of test standards;
4.2 jog the raise switch 122 and simultaneously the imaging record analyzer 22 mounted on the accessory link 2 is activated synchronously. The lifting rod 112 drives the upper clamp 113 to rise under the driving of the driving device 121, and the pulling force F 0 The range is 0-500N, the tested sample 4 is stretched until the fracture is shown in figure 3, the lifting rod 112 stops running, and the imaging recording analyzer 22 stops shooting;
4.3 the tension sensor 117 fixed on the base 12 and the imaging recording analyzer 22 automatically collect the maximum tension F in the stretching process 1 And video data to a display 31 via a connection 32. The distance L between the marking lines at the moment of tensile fracture of the sample 4 can be measured by the standard graduated scale 114 through the video framing pictures collected by the imaging recorder analyzer 22 2 As indicated by reference numeral 6 in fig. 3。
4.4 if there is any abnormality in the above operations, the emergency stop button 124 may be clicked to stop the operation, and the operations 1 to 3 are resumed when the conditions are met.
5 calculation of
According to the obtained relevant effective data, the mechanical and physical performance indexes of the sample 4 are automatically calculated according to the following formula, and a tester can judge the test result according to the product standard regulation:
elongation at break a = L 2 /L 1 -1, unit%;
tensile strength b = F 1 S, unit N/mm 2 ；
In the formula, S is a cross-sectional area of the sample 4, and is calculated from the initial data (thickness and width of dumbbell sample or outer dimensions and thickness of tubular sample) filled therein.
The utility model provides a mechanical physical properties test equipment for wire and cable and optical cable has following advantage: the method for confirming the vertical state of the sample is provided by the infrared vertical line marking instrument, the problem that a tester roughly judges the vertical state of the sample only by visual observation in the existing operation is avoided, the accuracy of the vertical state of the sample is improved, and the problem that the tensile force result is small due to uneven stress of the sample possibly caused by non-perpendicularity is solved; the imaging recording analyzer provides an accurate method for measuring the tensile fracture instant length of the sample, particularly the application of video framing pictures, the instant capture time efficiency is improved by more than 4 times compared with the audiovisual reaction time of a human, the human factor error caused by the unequal reaction time of a tester facing the tensile fracture instant of the sample due to visual reading errors is avoided, and the accuracy of the length measurement is improved; the imaging record analyzer can synchronously record in the test process of the sample, so that the problems that the test process cannot be checked back and the process cannot be kept are solved, and the test flow is improved; through being equipped with standard scale, provide the standard measuring tool of sample length measurement, solved the problem that the surveyor used nonstandard measuring tool such as tape measure, self-control chi, improved standard measuring tool's the rate of utilization and the measurement level of testing process. From this, provide a multiple functional, high accurate measuring equipment, solved current measuring equipment's not enough, liberated tester's both hands, measure easy operation, convenient.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Moreover, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (8)
1. The mechanical and physical property testing equipment for the electric wire and cable and the optical cable is characterized by comprising a main body tension device, a main body tension device auxiliary connecting rod, an infrared vertical line marking instrument and an imaging recording analyzer, wherein one end of the main body tension device auxiliary connecting rod is connected to the main body tension device, the infrared vertical line marking instrument and the imaging recording analyzer are installed on the main body tension device auxiliary connecting rod, the main body tension device comprises a lifting main frame and a base, the lifting main frame comprises a clamping part, a lifting rod and a tension sensor, the base comprises a driving device, the clamping part is installed on the lifting rod and the base, the tension sensor is installed on the base, and the lifting rod is connected with the driving device.
2. The mechanical physical property testing apparatus for electric wire and optical cable according to claim 1, wherein the clamping member includes an upper clamp and a lower clamp fixed to the lifting rod and the base, respectively.
3. The mechanical physical property testing apparatus for electric and optical cables of claim 2, wherein the main body tensile means further comprises a standard scale installed right behind the main body tensile means and between the upper and lower clamps.
4. The mechanical physical property testing apparatus for electric and optical cables according to claim 2, wherein the body pulling force device further comprises an upper and a lower limiting means installed inside the lifting main frame and limiting a range of motion of the lifting rod.
5. The mechanical-physical-property testing device for electric-wire and optical-cable according to claim 1, wherein said base further comprises a raising switch, a lowering switch and a scram switch.
6. The mechanical physical property test apparatus for electric and optical wires and cables according to claim 1, wherein the main body pulling force device attachment link is an L-shaped rod body, one end of the L-shaped rod body is connected to the upper end of the main body pulling force device, the infrared vertical striping machine and the imaging recording analyzer are installed at the other end of the L-shaped rod body, and the imaging recording analyzer is located above the infrared vertical striping machine.
7. The mechanical physical property test equipment for electric and optical cables of claim 6, wherein the L-shaped rod body is connected to the upper end of the main body tensile means through a rotating shaft.
8. A mechanical physical property test system for electric wire cables and optical cables, comprising the mechanical physical property test apparatus for electric wire cables and optical cables according to any one of claims 1 to 7 and a display device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222487950.4U CN218481314U (en) | 2022-09-20 | 2022-09-20 | Mechanical physical property testing device and system for electric wire and optical cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222487950.4U CN218481314U (en) | 2022-09-20 | 2022-09-20 | Mechanical physical property testing device and system for electric wire and optical cable |
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| CN218481314U true CN218481314U (en) | 2023-02-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116481924A (en) * | 2023-06-21 | 2023-07-25 | 成都四威科技股份有限公司 | Wire and cable tension testing equipment and testing method thereof |
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- 2022-09-20 CN CN202222487950.4U patent/CN218481314U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116481924A (en) * | 2023-06-21 | 2023-07-25 | 成都四威科技股份有限公司 | Wire and cable tension testing equipment and testing method thereof |
| CN116481924B (en) * | 2023-06-21 | 2023-09-19 | 成都四威科技股份有限公司 | Wire and cable tension testing equipment and testing method thereof |
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