CN210923276U - Large-size non-immersion four-point bending fixture with controllable loading - Google Patents
Large-size non-immersion four-point bending fixture with controllable loading Download PDFInfo
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- CN210923276U CN210923276U CN201921809324.4U CN201921809324U CN210923276U CN 210923276 U CN210923276 U CN 210923276U CN 201921809324 U CN201921809324 U CN 201921809324U CN 210923276 U CN210923276 U CN 210923276U
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Abstract
The utility model relates to a large-size non-immersion four-point bending clamp with controllable loading, which comprises a C-shaped base, a loading platform, a solution pool and an L-shaped fixed load loading caliper for loading a set loading force; the C-shaped base, the loading platform and the solution pool are sequentially arranged from top to bottom, the loading platform is located inside the C-shaped base, and the C-shaped base is fixed on the side wall of the L-shaped fixed load loading caliper. The device is limited by an L-shaped fixed load loading caliper to be loaded to a preset load force value, the error is controlled within 5%, and a solution pool is arranged in the middle of a loaded sample to enable the sample to be in a stress corrosion environment. The four-point bending SCC test research in a laboratory is closer to the actual condition of stress corrosion cracking crack tips in the engineering environment, the accuracy of the test is improved, and the four-point bending SCC test research is better applied to the research of the stress corrosion test.
Description
Technical Field
The utility model relates to a testing arrangement technical field is four-point bending test device mainly to laboratory stress corrosion test.
Background
Constant load loading is one of the main modes of stress corrosion cracking tests, and a four-point bending test is a constant load stress corrosion cracking test method commonly used in a laboratory. 1. The four-point bending device is a small-size clamp with the length of 15-20 mm, and the application deviation of the four-point bending device and a large-size component in practical engineering is large; 2. before the test is carried out, the magnitude of the loading force is manually adjusted by attaching a strain gauge or other tools for assistance, or the loading amount is adjusted by measuring the deflection generated by bending the test sample in the loading process and the change of the position of the test sample relative to the bracket, so that the process is complicated, and the loading force cannot be accurately given; 3. in the traditional test, the whole clamp is completely soaked in a solution environment, and the operation has certain corrosion damage effect on the clamp and certain pollution on the solution environment; therefore, a large-size four-point bending clamp which is relatively close to practical engineering application is designed, a fixed-torque bolt with an automatic adjusting function is installed, loading force is accurately and conveniently given, and finally, a solution pool is installed only in a certain range of a region with concentrated stress, and a stress corrosion environment is established at a fixed point.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a controllable jumbo size non-soaking formula four-point bending anchor clamps of loading to solve any problem in the above-mentioned and other potential problems of prior art.
In order to solve the above problem, the technical scheme of the utility model is that: a large-size non-immersion four-point bending clamp with controllable loading comprises a C-shaped base, a loading table, a solution pool and an L-shaped fixed-load loading caliper for loading a set loading force;
the C-shaped base, the loading platform and the solution pool are sequentially arranged from top to bottom, the loading platform is located inside the C-shaped base, and the C-shaped base is fixed on the side wall of the L-shaped fixed load loading caliper.
Further, the L-shaped fixed load loading caliper comprises an L-shaped main body, a tooth mark scale, a fixing sleeve and an adjusting bolt;
wherein, the tooth trace scale sets up on the lateral wall of one side of L shape main part upper end, fixed cover is established on the L shape main part, fixed cover with be equipped with the regulation hole on the lateral wall of tooth trace mark contact, adjusting bolt sets up in the regulation hole.
Further, the solution tank comprises a solution bearing container and a container cover;
the container cover is arranged at the top of the solution bearing container, and is provided with an air inlet hole, an air outlet hole, a water inlet, a water outlet, a reference electrode mounting hole and a counter electrode mounting hole.
Further, the base comprises a C-shaped main body, a loading bolt and a supporting column; the bottom center position trompil groove of C type main part, the ears department of C type main part is opened there is the base half slot, the base support column sets up in the base half slot, the loading bolt sets up in the trompil groove.
Further, the loading platform comprises a loading rod semicircular groove, a loading semicircular groove and loading support columns, the loading semicircular groove is arranged at the two ends of the bottom of the loading rod semicircular groove, and the loading support columns are arranged in the loading semicircular groove.
Furthermore, the L-shaped main body, the tooth mark scale, the fixing sleeve and the adjusting bolt are made of 4140 alloy.
Further, the base body and the loading bolt are made of 4140 alloy.
Furthermore, the base support column and the loading support column are made of quartz.
The utility model discloses an intentional effect is: due to the adoption of the technical scheme, the utility model has the advantages of simple structure, convenient to use, but through the L shape decide the position that load slide caliper rule mark typical yield strength percentage corresponds, can accurate loading target in place at bolt loading in-process, avoid "transshipping" to use L shape to decide load slide caliper rule as the standard to the guarantee loads the loading force of settlement, and at the intermediate position installation solution pond of loading sample, make the sample be in stress corrosion environment. The four-point bending SCC test research in a laboratory is closer to the actual condition of stress corrosion cracking crack tips in the engineering environment, the accuracy of the test is improved, and the four-point bending SCC test research is better applied to the research of the stress corrosion test.
Drawings
Fig. 1 is a schematic structural view of a large-size non-immersion four-point bending fixture with controllable loading according to the present invention.
Fig. 2 is the structural schematic diagram of the L-shaped fixed load loading caliper of the present invention.
Fig. 3 is a schematic structural diagram of the C-shaped base of the present invention.
Fig. 4 is a schematic structural diagram of the loading block of the present invention.
Fig. 5 is a schematic top view of the solution tank of the present invention.
Fig. 6 is a schematic structural diagram of a loading experiment using the present invention.
In the figure:
the device comprises a C-shaped base, a loading block, a 3L-shaped fixed load loading caliper, a 4 solution pool, a 5 perforated groove, a 6 loading bolt, a 7 base semicircular groove, a 8 base supporting rod, a 9 loading semicircular groove, a 10 loading supporting rod, a 11L-shaped tooth mark scale, a 12 fixing sleeve hole, a 13 adjusting buckle, a 13 liquid bearing container, a 14 container cover, a 15 air inlet hole 16, an air outlet hole, a 17 water inlet, an 18 water outlet, a 19 reference electrode mounting hole, a 20 counter electrode mounting hole, a 21L-shaped main body, a 22 base main body, a 23 loading main body, a 24 plate sample and a 25 adjusting hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the large-size non-immersion four-point bending fixture with controllable loading of the utility model comprises a C-shaped base 1, a loading table 2, a solution pool 4 and an L-shaped fixed-load loading caliper 3 for loading a set loading force;
the C-shaped base 1, the loading platform 2 and the solution pool 4 are sequentially arranged from top to bottom, the loading platform 2 is located inside the C-shaped base 1, and the C-shaped base 1 is fixed on the side wall of the L-shaped fixed load loading caliper 3.
As shown in fig. 4, the L-shaped constant load loading caliper 3 includes an L-shaped body 21, a tooth mark scale 11, a fixing sleeve 12 and an adjusting buckle 13;
the tooth mark ruler 11 is arranged on the side wall of one side of the upper end of the L-shaped main body 21, the fixing sleeve 12 is sleeved on the L-shaped main body 21, the fixing sleeve 12 and the side wall, in contact with the tooth mark ruler 11, of the fixing sleeve are provided with adjusting holes 25, and the adjusting buckles 13 are arranged in the adjusting holes 25.
As shown in fig. 5, the solution tank 4 includes a solution-carrying container 13 and a container cover 14;
wherein, the container cover 14 is arranged on the top of the solution bearing container 13, and the container cover 14 is provided with an air inlet hole 15, an air outlet hole 16, a water inlet 17, a water outlet 18, a reference electrode mounting hole 19 and a counter electrode mounting hole 20.
As shown in fig. 2, the base includes a C-shaped body 22, a loading bolt 6 and a base support 8; wherein, the bottom central point of C type main part 22 puts trompil groove 5, the ears department of C type main part is opened there is base half slot 7, base support column 8 sets up in the base half slot 7, loading bolt 6 sets up in the trompil groove 5.
As shown in fig. 3, the loading table 2 includes a loading main body 23, a loading semicircular groove 9 and a loading support column 10, the loading semicircular groove 9 is provided at two ends of the bottom of the loading main body 23, and the loading support column 10 is provided in the loading semicircular groove 9.
The L-shaped body 21, the tooth mark scale 11, the fixing sleeve 12 and the adjusting buckle 13 are made of 4140 alloy.
The C-shaped main body 22 and the loading bolt 6 are made of 4140 alloy.
The base support column 8 and the loading support column 10 are made of quartz.
Example (b):
before the clamp is loaded, a plate sample 24 is placed on a loading support column 10 of a C-shaped base 1, a loading table 2 is placed at the central position of the upper end of the plate sample 24, a solution pool 4 is fixed at the lower end of the central position of the plate sample 24 and sealed by a sealing ring, then a pipeline for gas and liquid to enter and exit and an electrode system are connected, and finally according to the relation between loading force and displacement,
moving a tooth mark scale 11 of an L-shaped fixed load loading caliper 3 to a position where the load corresponds to a displacement position, then operating a loading bolt 6 at the bottom of a base body to carry out moving loading on a loading platform 2, controlling the error within 5% due to the fact that the L-shaped fixed load loading caliper 3 limits the loading to a preset load force value, and installing a solution pool at the middle position of a loaded sample to enable a plate sample to be in a stress corrosion environment. The four-point bending SCC test research in a laboratory is closer to the actual condition of the stress corrosion cracking crack tip in the engineering environment, the test accuracy is improved, and the four-point bending SCC test research is better applied to the research of the stress corrosion test (as shown in FIG. 6).
While preferred embodiments of the present invention have been shown and described herein, it will be understood by those skilled in the art that changes in the embodiments herein may be made without departing from the spirit of the invention. The above-described embodiments are merely exemplary and should not be taken as limiting the scope of the invention.
Claims (9)
1. A large-size non-immersion four-point bending clamp with controllable loading is characterized by comprising a C-shaped base, a loading table, a solution pool and an L-shaped fixed-load loading caliper for loading a set loading force;
the C-shaped base, the loading platform and the solution pool are sequentially arranged from top to bottom, the loading platform is located inside the C-shaped base, and the C-shaped base is fixed on the side wall of the L-shaped fixed load loading caliper.
2. The clamp of claim 1, wherein said L-shaped constant load caliper comprises an L-shaped body, a tooth mark scale, a retaining sleeve and an adjusting bolt;
wherein, the tooth trace scale setting is in on the lateral wall of one side of L shape main part upper end, fixed cover is established on the L shape main part, fixed cover with be equipped with the regulation hole on the lateral wall of tooth trace scale contact, adjusting bolt sets up in the regulation hole.
3. The clamp of claim 2, wherein the solution tank comprises a solution carrying container and a container lid;
the container cover is arranged at the top of the solution bearing container, and is provided with an air inlet hole, an air outlet hole, a water inlet, a water outlet, a reference electrode mounting hole and a counter electrode mounting hole.
4. The clamp of claim 3, wherein said base comprises a C-shaped body, a loading bolt and a support post; the bottom center position trompil groove of C type main part, the ears department of C type main part is opened there is the base half slot, the base support column sets up in the base half slot, the loading bolt sets up in the trompil groove.
5. The clamp of claim 4, wherein the loading platform comprises a loading rod semicircular groove, a loading semicircular groove and a loading support column, the loading rod semicircular groove is provided at two ends of the bottom of the loading rod semicircular groove, and the loading support column is arranged in the loading semicircular groove.
6. The fixture of claim 2, wherein the L-shaped body, the tooth mark scale, the retaining sleeve and the adjusting bolt are made of 4140 alloy.
7. The clamp of claim 4, wherein the base body and the loading bolt are 4140 alloy.
8. The clamp of claim 5, wherein the susceptor support column and the loading support column are quartz.
9. The clamp of claim 3, wherein the solution carrying container and the container lid are made of PVC plastic or rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921809324.4U CN210923276U (en) | 2019-10-25 | 2019-10-25 | Large-size non-immersion four-point bending fixture with controllable loading |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921809324.4U CN210923276U (en) | 2019-10-25 | 2019-10-25 | Large-size non-immersion four-point bending fixture with controllable loading |
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| CN210923276U true CN210923276U (en) | 2020-07-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034549A (en) * | 2021-10-08 | 2022-02-11 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Bending test fixture and reliability test system |
| WO2022077527A1 (en) * | 2020-10-13 | 2022-04-21 | 江苏仕邦柔性电子研究院有限公司 | Apparatus for testing bending resistance of flexible electronic product |
-
2019
- 2019-10-25 CN CN201921809324.4U patent/CN210923276U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077527A1 (en) * | 2020-10-13 | 2022-04-21 | 江苏仕邦柔性电子研究院有限公司 | Apparatus for testing bending resistance of flexible electronic product |
| CN114034549A (en) * | 2021-10-08 | 2022-02-11 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Bending test fixture and reliability test system |
| CN114034549B (en) * | 2021-10-08 | 2023-10-03 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Bending test fixture and reliability test system |
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