CN212363946U - High-speed thin-wall line flexibility test device for EMUs - Google Patents
High-speed thin-wall line flexibility test device for EMUs Download PDFInfo
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- CN212363946U CN212363946U CN202020669611.6U CN202020669611U CN212363946U CN 212363946 U CN212363946 U CN 212363946U CN 202020669611 U CN202020669611 U CN 202020669611U CN 212363946 U CN212363946 U CN 212363946U
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Abstract
The utility model provides a high-speed thin wall line pliability test device for EMUs, include: the test bench comprises a base and a support arranged on the base, at least one group of clamping assemblies is arranged at the top of the support, a test rod is detachably arranged on the top of the support on one side of each group of clamping assemblies, and a connecting piece used for being connected with a cable is arranged on the balancing weight. The utility model discloses simple structure, it is small, conveniently carry, can put into the oven with the testboard is whole and carry out the preliminary treatment, do not need external power supply, easy operation is convenient.
Description
Technical Field
The utility model relates to a wire and cable detection device technical field for the EMUs, concretely relates to high-speed thin wall line pliability test device for EMUs.
Background
In the production process of the electric wire and the electric cable of the motor train unit, the bending performance of the electric wire and the electric cable needs to be tested. According to the temporary technical conditions of the wire and cable of the motor train unit with the standard technical file number TJ/CL 313-2014, the technical conditions stipulate the technical requirements, the inspection method, the inspection rule, the service life requirement, the identification, the transportation and storage requirements and the like of the wire and cable (3.6kV and below) for the CRH series motor train units. The method is used for guiding the design, manufacture, inspection, test and certification of the electric wire and cable for CRH series motor train units, and the pretreatment conditions of the electric wire and cable are as follows: (80 +/-2) ° C/12N, and then standing for 72 hours under the conditions of (20 +/-2) ° C/humidity (50 +/-2)%; the required results are: the measured rebound angle must not exceed the value specified in the standard (EN 50306-2).
The bending performance testing device for the cable in the prior art is complex in structure, large in size, heavy, inconvenient to carry, required to be externally connected with a power supply and incapable of being put into an oven for pretreatment.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides a high-speed thin wall line pliability test device for EMUs.
The utility model provides a pair of thin wall line pliability test device for high-speed EMUs, include: the test bench comprises a base and a support arranged on the base, at least one group of clamping components is arranged at the top of the support, a test rod is detachably arranged on the top of the support on one side of each group of clamping components, and a connecting piece used for being connected with a thin-wall line is arranged on each balancing weight.
Preferably, the test rod is provided with an annular limiting groove along the circumferential direction, and the cross section of the annular limiting groove is arc-shaped.
Preferably, the clamping assembly comprises an upper fixing plate, a lower fixing plate, a bolt and a pressing plate;
the upper fixing plate and the lower fixing plate are installed at the top of the support at intervals from top to bottom, a through hole penetrating through the upper fixing plate and the lower fixing plate is formed in the upper fixing plate, an internal thread matched with a bolt is arranged in the through hole, the front end of the bolt penetrates through the through hole to be fixedly connected with the pressing plate, and the bolt is in threaded connection with the through hole.
Preferably, the clamping surface of the pressing plate and/or the lower fixing plate is provided with a first arc-shaped through groove.
Preferably, a part of the inner peripheral surface that first arc led to the groove is sunken downwards and is formed the second arc and lead to the groove, and the uncovered direction that the second arc led to the groove is unanimous with the uncovered direction that first arc led to the groove, and the radius of curvature that the second arc led to the groove is less than the radius of curvature that first arc led to the groove.
Preferably, an oven for pretreatment is also included.
The utility model discloses simple structure, it is small, conveniently carry, can put into the oven with the testboard is whole and carry out the preliminary treatment, do not need external power supply, easy operation is convenient, and the test rod can be dismantled moreover, and the test rod of removable different diameters is so that test not unidimensional thin wall line.
Drawings
Fig. 1 is the utility model provides a high-speed EMUs are with thin wall line pliability test device's structural schematic.
Fig. 2 is a schematic structural diagram of the clamping assembly of the present invention.
Description of reference numerals:
1-base 2-support 3-balancing weight 4-pressure strip 5-test bar 6-upper fixing plate
7-lower fixing plate 8-bolt
Detailed Description
Referring to fig. 1 and fig. 2, the utility model provides a high-speed EMUs are with thin wall line pliability test device, include: the test bench comprises a base 1 and a support 2 arranged on the base 1, at least one group of clamping assemblies are arranged at the top of the support 2, a test rod 5 is detachably arranged on the top of the support 2 on one side of each group of clamping assemblies, and a connecting piece used for being connected with a thin-wall line is arranged on each balancing weight 3.
The utility model discloses simple structure, it is small, conveniently carry, can put into the oven with the testboard is whole and carry out the preliminary treatment, do not need external power supply, easy operation is convenient, and test bar 5 can be dismantled moreover, and the test bar 5 of removable different diameters is so that test not unidimensional thin wall line.
Specifically, in order to take down the counter weight block 3, the connecting piece is a hook.
In order to limit the position of the thin-wall wire, keep the bending direction of the thin-wall wire consistent all the time and avoid dislocation in the moving process, in the embodiment, the test bar 5 is provided with an annular limiting groove along the circumferential direction, and the section of the annular limiting groove is arc-shaped.
Referring to fig. 2, in order to stably fix the thin-walled wire, in the present embodiment, the clamping assembly includes an upper fixing plate 6, a lower fixing plate 7, a bolt 8, and a pressing plate 4;
upper fixed plate 6 and bottom plate 7 are installed at 2 tops of support at the interval from top to bottom, and the through-hole that runs through from top to bottom is seted up on upper fixed plate 6, is equipped with in the through-hole with 8 assorted internal threads of bolt, 8 front ends of bolt pass through the through-hole and pressure strip 4 fixed connection, bolt 8 and through-hole threaded connection.
Referring to fig. 2, in order to better limit and fix the thin-wall wire, keep the fixing direction of the thin-wall wire uniform, and improve the accuracy of the test result, in this embodiment, the clamping surface of the pressing plate 4 and/or the lower fixing plate 7 is provided with a first arc-shaped through groove.
Referring to fig. 2, in order to be suitable for thin-wall lines of different sizes, in the present embodiment, a portion of the inner peripheral surface of the first arc-shaped through groove is recessed downward to form a second arc-shaped through groove, an opening direction of the second arc-shaped through groove is identical to an opening direction of the first arc-shaped through groove, and a curvature radius of the second arc-shaped through groove is smaller than a curvature radius of the first arc-shaped through groove.
In order to facilitate the pretreatment, in the present embodiment, an oven for pretreatment is further included.
In this embodiment, the bracket 2 includes two vertically arranged first connecting rods and a horizontally arranged second connecting rod, two ends of the second connecting rod are respectively and fixedly connected with the top ends of the two first connecting rods, and the clamping assembly and the test bar 5 are arranged on the second connecting rod.
When in specific use: continuously cutting a plurality of sample sections from a cable ring, clamping and fixing one end of each sample section through a clamping assembly, fixing the other end of each sample section with a balancing weight 3 by bypassing a test bar 5 to enable the free end of each sample section to be vertical, then placing the whole test table into an oven, and placing the test table for 24 hours for pretreatment, wherein the diameter of the test bar 5, the weight of the balancing weight 3 and the temperature of the oven are in accordance with the standard of a cable;
after the pretreatment is finished, taking the whole test bench out of the oven, and placing the test bench in an environment with the temperature of 20 +/-2 ℃ and the relative humidity of 50 +/-5% for 72 hours;
after the treatment, the weight 3 was removed, and the rebound angle was recorded with an angle measuring instrument 5 minutes after the removal of the weight.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a high-speed thin wall line flexibility test device for EMUs which characterized in that includes: the test bench comprises a base (1) and a support (2) arranged on the base (1), at least one group of clamping assemblies are arranged at the top of the support (2), a test bar (5) is detachably arranged on the top of the support (2) on one side of each group of clamping assemblies, and a connecting piece used for being connected with a thin-wall line is arranged on each balancing weight (3).
2. The thin-wall wire flexibility test device for the high-speed motor train unit as claimed in claim 1, wherein the test bar (5) is circumferentially provided with an annular limiting groove, and the cross section of the annular limiting groove is arc-shaped.
3. The thin-wall wire flexibility test device for the high-speed motor train unit according to claim 1 or 2, wherein the clamping assembly comprises an upper fixing plate (6), a lower fixing plate (7), a bolt (8) and a pressing plate (4);
upper fixed plate (6) and bottom plate (7) are installed at support (2) top from top to bottom at the interval, and the through-hole that runs through from top to bottom is seted up on upper fixed plate (6), be equipped with in the through-hole with bolt (8) assorted internal thread, bolt (8) front end pass through-hole and pressure strip (4) fixed connection, bolt (8) and through-hole threaded connection.
4. The thin-wall wire flexibility test device for the high-speed motor train unit as claimed in claim 3, wherein a first arc-shaped through groove is formed in the clamping surface of the pressing plate (4) and/or the lower fixing plate (7).
5. The thin-wall wire flexibility test device for the high-speed motor train unit according to claim 4, wherein a part of the inner peripheral surface of the first arc-shaped through groove is recessed downwards to form a second arc-shaped through groove, the opening direction of the second arc-shaped through groove is consistent with the opening direction of the first arc-shaped through groove, and the curvature radius of the second arc-shaped through groove is smaller than that of the first arc-shaped through groove.
6. The thin-walled wire flexibility test device for the high-speed motor train unit according to claim 1, further comprising an oven for pretreatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020669611.6U CN212363946U (en) | 2020-04-27 | 2020-04-27 | High-speed thin-wall line flexibility test device for EMUs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020669611.6U CN212363946U (en) | 2020-04-27 | 2020-04-27 | High-speed thin-wall line flexibility test device for EMUs |
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| Publication Number | Publication Date |
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| CN212363946U true CN212363946U (en) | 2021-01-15 |
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| CN202020669611.6U Active CN212363946U (en) | 2020-04-27 | 2020-04-27 | High-speed thin-wall line flexibility test device for EMUs |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114778350A (en) * | 2022-06-16 | 2022-07-22 | 深圳市博音导线电子科技有限公司 | Softness performance detection device based on electronic connection line |
-
2020
- 2020-04-27 CN CN202020669611.6U patent/CN212363946U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114778350A (en) * | 2022-06-16 | 2022-07-22 | 深圳市博音导线电子科技有限公司 | Softness performance detection device based on electronic connection line |
| CN114778350B (en) * | 2022-06-16 | 2022-09-06 | 深圳市博音导线电子科技有限公司 | Softness performance detection device based on electronic connection line |
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