CN201788162U - Heat penetration testing instrument - Google Patents
Heat penetration testing instrument Download PDFInfo
- Publication number
- CN201788162U CN201788162U CN2010202566957U CN201020256695U CN201788162U CN 201788162 U CN201788162 U CN 201788162U CN 2010202566957 U CN2010202566957 U CN 2010202566957U CN 201020256695 U CN201020256695 U CN 201020256695U CN 201788162 U CN201788162 U CN 201788162U
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- impact head
- control box
- testing
- module
- lever
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Abstract
The utility model discloses a heat penetration testing instrument, which comprises a testing frame and an electric device control box. The testing frame includes a lever of the upper end of an upright post, one side of the lever is connected with a sliding pole, a sliding seat is sleeved on the sliding pole, an impact head is connected to the bottom end of the sliding pole, an induction coil is wound outside the impact head, a miniature thermoelectric couple is arranged inside the impact head, a testing working table used for fixing a tested product is arranged right under the impact head, a temperature measuring sensor is arranged inside the testing working table, an iron block is connected to the lower side of the other side of the lever, a miniature electromagnet corresponds to the lower side of the iron block, the electric device control box is fixed onto the upright post, and a control module, a high-frequency current generator, a temperature measuring module and a delay module are arranged inside the electric device control box. The heat penetration testing instrument adopts the electromagnetic induction heating technology, is small in the size of the impact head and fast in heating, reduces testing waiting time, is small in testing power, protects environment, saves energy, and is long in service life.
Description
Technical field
The utility model relates to a kind of tester that is used for safety goggles, face guard and safety helmet etc., particularly be a kind of thermal break-through tester.
Background technology
At present, the method of traditional heat-resisting penetrability of test armour is on the market: adopt an impact head that is heated to the test set point of temperature, with certain impulsive force shock-testing sample, thereby realize the detection of penetration power, determine the degree that is reached of specimen thermotolerance and penetrability.
Adopt said method, mainly have following shortcoming: 1, impact head is huge; 2, the heater heating needs for a long time on the impact head; 3, the temperature of heater can not reach 650 ℃ that require in the testing standard; 4, electrothermal wire heating's body is at high temperature fragile.
The heating technique of impact head is a gordian technique in the tester, all be to adopt the heating wire heating in the prior art, promptly electrothermal wire heating's body is installed in shock-testing head outside, power current produces heat by heating wire, by the heat transmission heat is conducted to impact head, so caused the bulky heaviness of impact head in the prior art, heat time heating time is long, electrothermal wire heating's body at high temperature is easy to damage.
Summary of the invention
Goal of the invention: the utility model provides a kind of thermal break-through tester that adopts electromagnetic induction heating technology in order to solve the deficiencies in the prior art, and is rational in infrastructure, simple to operate, measuring accuracy is high.
Technical scheme: in order to realize above purpose, a kind of thermal break-through tester described in the utility model comprises: testing jig and electric appliance control box; Described testing jig comprises: passive column, and this column upper end is provided with lever;
One side of described lever connects litter, is arranged with slide on the litter; The bottom of litter connects impact head; The outside inductive coil that twines of impact head, inside is provided with micro thermocouple; Be provided for the test table of fixing test product under the impact head, temperature probe is set in the test table; Generally temperature probe is arranged at the below of specimen, during test starting, is used for the effect of heat insulation of testing product.Owing to adopted one group of inductive coil, dwindle the cumulative volume of impact head greatly, and can rise to the probe temperature that requirement reaches fast, shortened the test stand-by period in early stage.
The opposite side below of described lever connects iron block, the corresponding minitype electromagnet in iron block below; Minitype electromagnet is used to control the left and right sides lifting of lever, and then has controlled the lifting of litter, and the lifting of impact head on the litter.
Also be fixed with electric appliance control box on the described column, this electric appliance control box is electrically connected with minitype electromagnet, inductive coil, micro thermocouple, temperature probe respectively;
Be provided with control module, high-frequency current generator, temperature measurement module and time delay module in the described electric appliance control box; Control module is electrically connected with high-frequency current generator, temperature measurement module and time delay module respectively; And electric appliance control box is electrically connected with micro thermocouple by temperature measurement module, and control module is electrically connected with temperature probe, and high-frequency current generator is electrically connected with inductive coil.
In the utility model, each module effect in the above-mentioned electric appliance control box is as follows:
Temperature measurement module: be electrically connected with micro thermocouple, the temperature of micro thermocouple is monitored in real time, simultaneously, temperature measurement module is connected with control module again, and the temperature value of the micro thermocouple that monitors is sent to control module;
High-frequency current generator: be connected with inductive coil, control module respectively; The high-frequency current that high-frequency current generator produces puts on inductive coil, makes inductive coil produce high frequency magnetic field, and under the induction of high frequency magnetic field, the inner high frequency bumpy flow that produces of impact head generates heat impact head rapidly;
Time delay module: be connected with control module, be used to control the length of test duration;
Control module: receive parameter, and send instruction.
In the utility model,, also be provided with support on the described testing jig for better fixing slide carriage; Support one end is connected with slide, and the other end is connected with column.Being provided with of support can be fixed in slide the height of requirement.
In the utility model, impact head preferably adopts elasticity to be connected with micro thermocouple, has effectively guaranteed the connection reliability of micro thermocouple and impact head, has improved the precision of test temperature control.
Beneficial effect: the thermal break-through tester that the utility model provides compared with prior art has the following advantages:
1, because the utility model has adopted electromagnetic induction heating technology, by inductive coil, the inner high-frequency vortex that produces of impact head heats up impact head rapidly, just can reach probe temperature within 15 seconds, thereby reduce the test wait time; And measured power is little, can reach the effect of energy-saving and emission-reduction;
2, because in the utility model, the volume of impact head is little, has satisfied the requirement of shock-testing impact quality; Improved the serviceable life of test impact head;
3, because in the utility model, impact head and micro thermocouple adopt Elastic Contact, have guaranteed that micro thermocouple contacts with the reliable of impact head, has improved temperature-controlled precision.
Description of drawings
Fig. 1 is the structural representation of a kind of thermal break-through tester described in the utility model;
Fig. 2 is the structural representation of electric appliance control box in a kind of thermal break-through tester described in the utility model.
Embodiment:
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment only be used to the utility model is described and be not used in the restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present utility model.
A kind of thermal break-through tester as shown in Figure 1 and Figure 2 comprises: testing jig and electric appliance control box 2;
Wherein the testing jig parts are constructed as follows:
Be provided with in the electric appliance control box 2 with lower module:
Annexation between the above-mentioned parts is as follows:
Lever 4 right-hand members are provided with an iron block 10, and the below of iron block 10 is provided with a minitype electromagnet 11;
Electric appliance control box 2 is electrically connected with minitype electromagnet 11, inductive coil 12, micro thermocouple 34, temperature probe 36 respectively;
The annexation of electric appliance control box 2 inside following (shown in Figure 2):
When the described thermal break-through tester of present embodiment is worked, at first test products is positioned on the worktable 9, up with test surfaces; Temperature probe 36 is positioned over the test products below.
After starting the thermal break-through tester, control module 31 is sent enabled instruction, high-frequency current generator 32 produces high-frequency currents and annotates outside impact head 8 on the induction coil wound 12, inductive coil 12 produces high frequency magnetic field, the impact head 8 inner high-frequency vortexes that produce under the effect of electromagnetic induction, impact head 8 is generated heat rapidly, tap the head 8 the temperature of liquidating the micro thermocouple 34 of impact head 8 inside detects in real time, and the temperature of impact head 8 is sent to control module 31, when the temperature of impact head 8 reaches 650 ℃ of requirement temperature, dutycycle heat time heating time that control module 31 is regulated high-frequency current, promptly regulate heating power, the temperature stabilization that makes impact head 8 is at 650 ℃ of test request.
Behind temperature stabilization, take off the support 7 on the thermal break-through tester, slide 6 freely falls impact head 8 from predetermined height along litter 5, and impact head 8 is impacted to test products with the predetermined power of testing standard, by the time delay module in the control module 31 35 is set the test duration; During test, temperature probe 36 in the test table 9 is used to detect the temperature of test products another side, and the temperature value that temperature probe 36 obtains detection is sent to control module 31, control module 31 compares the temperature value of temperature probe 36 and the temperature value of temperature measurement module 33, measures the thermal resistance performance of product.
When end of test (EOT), control module 31 is sent instruction and is started minitype electromagnet 11, minitype electromagnet 11 energising work also produce magnetic, attract the iron block 10 of top, iron block 10 declines drive lever 4 right sides and move downward, and lever 4 left ends drive litter 5 and move upward, and impact head 8 is separated with test products, take off test products from test table 9, end of test (EOT).
Claims (3)
1. thermal break-through tester, it is characterized in that: it comprises: testing jig and electric appliance control box;
Described testing jig comprises: passive column (3), and column (3) upper end is provided with lever (4);
One side of described lever (4) connects litter (5), is arranged with slide (6) on the litter (5); The bottom of litter (5) connects impact head (8); The outside inductive coil (12) that twines of impact head (8), inside is provided with micro thermocouple (34); Be provided for the test table (9) of fixing test product under the impact head (8), temperature probe (36) is set in the test table (9);
The opposite side below of described lever (4) connects iron block (10), iron block (10) below corresponding minitype electromagnet (11);
Also be fixed with electric appliance control box (2) on the described column (3), this electric appliance control box (2) is electrically connected with minitype electromagnet (11), inductive coil (12), micro thermocouple (34), temperature probe (36) respectively;
Be provided with control module (31), high-frequency current generator (32), temperature measurement module (33) and time delay module (35) in the described electric appliance control box (2); Control module (31) is electrically connected with high-frequency current generator (32), temperature measurement module (33) and time delay module (35) respectively; And electric appliance control box (2) is electrically connected with micro thermocouple (34) by temperature measurement module (33), and control module (31) is electrically connected with temperature probe (36), and high-frequency current generator (32) is electrically connected with inductive coil (12).
2. a kind of thermal break-through tester according to claim 1 is characterized in that: also be provided with the support (7) that is used for fixing slide (6) on the described testing jig; Support (7) one ends are connected with slide (6), and the other end is connected with column (3).
3. a kind of thermal break-through tester according to claim 1 is characterized in that: impact head (8) is connected for elasticity with micro thermocouple (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202566957U CN201788162U (en) | 2010-07-13 | 2010-07-13 | Heat penetration testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202566957U CN201788162U (en) | 2010-07-13 | 2010-07-13 | Heat penetration testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788162U true CN201788162U (en) | 2011-04-06 |
Family
ID=43820121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202566957U Expired - Lifetime CN201788162U (en) | 2010-07-13 | 2010-07-13 | Heat penetration testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201788162U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915777A (en) * | 2010-07-13 | 2010-12-15 | 太仓市璜泾镇锐杰实验仪器制造厂 | Heat penetration tester |
-
2010
- 2010-07-13 CN CN2010202566957U patent/CN201788162U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915777A (en) * | 2010-07-13 | 2010-12-15 | 太仓市璜泾镇锐杰实验仪器制造厂 | Heat penetration tester |
| CN101915777B (en) * | 2010-07-13 | 2012-02-01 | 太仓市锐杰实验仪器制造有限公司 | Heat penetration tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110406 Effective date of abandoning: 20120201 |