CN201362139Y - Big diameter towed gun polyurethane injection tire - Google Patents
Big diameter towed gun polyurethane injection tire Download PDFInfo
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- CN201362139Y CN201362139Y CNU2009201019372U CN200920101937U CN201362139Y CN 201362139 Y CN201362139 Y CN 201362139Y CN U2009201019372 U CNU2009201019372 U CN U2009201019372U CN 200920101937 U CN200920101937 U CN 200920101937U CN 201362139 Y CN201362139 Y CN 201362139Y
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Abstract
The utility model relates to a big diameter towed gun polyurethane injection tire, which is composed of an outer tire, an inner tire, a cushion belt, a rim and a polyurethane filling body formed by the formation of polyurethane material injected in the inner tire, an air exhaust hole which penetrates through a tire wall and is provided with a choke plug is arranged in a groove of an outer tire crown; after assembling the outer tire, the inner tire, the cushion belt and the rim, the polyurethane material is injected by an inflating valve of the inner tire, and then after the polyurethane material injected in the inner tire is formed, the allocated choke plug is used for plugging the air exhaust hole which is arranged in the groove of the outer tire crown and penetrates through the tire wall. The tire has the advantages that: 1. the tire can ensure good contact of the outer tire and the rim without rim slipping; 2. high-temperature performance is good, not only the safety driving speed and continuous driving time of the gun are improved, and the maneuvering performance of the gun is improved, but also the phase change of the polyurethane filling material is easy to find, so as to timely eliminate accident potential, reduce the accident rate of concrete spraying and tire explosion and the like, the safety and reliability are high; 3. the performance is stable, and the storage and service life is long.
Description
Technical field
The utility model relates to a kind of tire, and particularly a kind of maneuverability is strong, safe reliability is high, the heavy caliber towed gun polyurethane of storage and long service life perfusion tire.
Background technology
Tire is the important component part of gun bogy, its structure and performance directly affect the safety and the manoevreability of cannon, traditional tire is made up of cover tire, the inner tube of a tyre, rim strip and wheel rim, it is air-inflation tyre, be afraid of bundle, not shellproof, easy gas leakage, road pavement conditional request height, be not suitable for the heavy caliber towed gun and use.At present, what adopt on the heavy caliber towed gun that my army is equipped mostly is foam filled tyre, it is to install on the wheel rim after inserting prefabricated sponge obturator in the cover tire to make again, though solved the fearness bundle that traditional air-inflation tyre exists, not shellproof, easy gas leakage, deficiency that the road pavement conditional request is high, but: 1, the external prefabricated sponge obturator of cover tire can not guarantee that the cover tire of tire all contacts with wheel rim is fine, exists the slipping ring problem; 2, high-temperature behavior is poor, the characteristic of cracking takes place in sponge obturator material when temperature reaches 100 ℃ of left and right sides, not only limit the safety traffic speed and the continuous running time of cannon, influence the manoevreability of cannon, and since the cracking of burst before causing whitewashing, the accident of blowing out, difficult quilt is in time found, causes fault and accident rate height, and safe reliability reduces; 3, the sponge obturator is formed by rubber pange, when after chemical reaction, have the reaction of part low temperature volatility packing material or remaining foaming agent not exclusively, above material meeting recurring structure or phase-state change in long-term storage or use, in addition, rubber thickness between the sponge obturator material bubble is less than 0.2mm, thereby minute bubble can break and form air pocket and cause the excessive normal use that influences tire of tire local deformation in long-term storage or use, so foam filled tyre is stored and service life is short, these problems that foam filled tyre exists cause it to be difficult to adapt to the work instruction requirement of military equipment under the new situation, units concerned are all carrying out a large amount of research at the improvement of foam filled tyre for this reason, but in view of the heavy caliber towed gun from great, gas leakage is blown out and caused the dangerous high characteristics of big gun of turning over, and is still in process to the repacking research of its tire at present.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiency of above-mentioned existing heavy caliber towed gun with foam filled tyre, and provide a kind of polyurethane of heavy caliber towed gun to pour into tire, this tire: 1, the polyurethane obturator be outside device of tyre to the wheel rim the back in the cover tire internal shaping, can guarantee that cover tire and wheel rim are fine contacts, not slipping ring; 2, high-temperature behavior is good, because polyurethane obturator material cracking temperature is up to 300 ℃, and before this, just undergo phase transition when temperature rises to more than 230 ℃, phase transition temperature height and phase transformation are the change procedures of a continous-stable, thereby not only can improve the safety traffic speed of cannon and continuous running time, improve the maneuvering performance of cannon, and be found easily when undergoing phase transition, can in time eliminate accident potential, reduce accident rates such as whitewashing, blow out, the safe reliability height; 3, the polyurethane obturator be after chemical reaction form full cross-linked degree and the higher high molecular polymer of molecule regularity arranged, the possibility of cracking, sex change, degraded does not take place under normal temperature condition, stable performance is stored and long service life.
The technical scheme in the invention for solving the technical problem is: this heavy caliber towed gun polyurethane perfusion tire, it is by cover tire, the inner tube of a tyre, rim strip, the polyurethane obturator that forms after the polyurethane material of perfusion is shaped in the wheel rim and the inner tube of a tyre constitutes, have in the tire protector groove and run through tyre sidewall, the deflation hole of configuration plug, be with cover tire, the inner tube of a tyre, after rim strip and the wheel rim assembling, by inner tube valve filling polyurethane material in the inner tube of a tyre, after being shaped, stops up with the plug that is equipped with again the polyurethane material for the treatment of perfusion in the inner tube of a tyre then that the deflation hole that runs through tyre sidewall offered in the tire protector groove prepares.
This heavy caliber towed gun polyurethane perfusion tire provided by the utility model, the plug of the deflation hole configuration that runs through tyre sidewall of offering in its tire protector groove can be steel or aluminum.
This heavy caliber towed gun polyurethane perfusion tire provided by the utility model and existing foam filled tyre performance comparison:
1, temperature is to polyurethane perfusion tire and foam filled tyre obturator effect of material performance
Test products: heavy caliber towed gun polyurethane perfusion tire obturator material provided by the utility model; " bearing " 12.00-20-14PR foam filled tyre obturator material that the Henan tire plant is produced.
1.1, low-temperature properties
Test method: DSC (differential scanning calorimetry atlas analysis)
Test temperature scope :-55 ℃～0 ℃
Test figures is seen Fig. 1 and Fig. 2.
From Fig. 1, Fig. 2 as can be seen: can normally use in polyurethane perfusion tire obturator material, the range of temperatures of foam filled tyre obturator material between-55 ℃～0 ℃.
1.2, high-temperature behavior
Test method: DSC (differential scanning calorimetry atlas analysis)
Test temperature scope: 50 ℃～400 ℃
Test figures is seen Fig. 1 and Fig. 2.
From Fig. 1, Fig. 2 as can be seen: polyurethane perfusion tire obturator material cracking temperature is up to 300 ℃, and before this, when rising to more than 230 ℃, temperature undergoes phase transition, phase transition temperature height and phase transformation are the change procedures of a continous-stable, the benefit of bringing is: the safety traffic speed and the continuous running time that not only can improve cannon, improve the maneuvering performance of cannon, and be found easily when undergoing phase transition, can in time eliminate accident potential, reduce the incidence of accidents such as whitewashing, blow out, the safe reliability height; Cracking takes place in foam filled tyre obturator material when temperature reaches 100 ℃ of left and right sides, cracking temperature is low, and before this, phase transition process is also not obvious, the hidden danger that exists is: phase transformation is difficult for being found before the foam filled tyre obturator material generation cracking, the hidden danger of elimination accident in time, and this not only limits the safety traffic speed and the continuous running time of cannon, influence the manoevreability of cannon, and accident such as whitewash, blow out takes place very easily.
2, repeatedly compress the back performance
2.1, the performance when unaged
Test method: ASTM D623-93
Test results sees Table 1.
The performance test results when table 1 tire obturator material is unaged
From table 1 data as can be seen: polyurethane perfusion tire obturator material is lower than foam filled tyre obturator material through repeatedly compressing the back temperature, illustrates that the temperature rise in use of polyurethane perfusion tire is lower than foam filled tyre, more helps long-time continuous and uses.Polyurethane perfusion tire obturator material illustrates that through repeatedly compressing the back permanent deformation less than foam filled tyre obturator material polyurethane perfusion tire in use is out of shape less than foam filled tyre; The distortion of polyurethane perfusion tire is less than foam filled tyre under long-time static store situation.
2.2, performance after the 70 ℃ * 24h hot air aging
Test method: ASTM D623-93
Test results sees Table 2.
The performance test results after the hot air aging of table 2 tire obturator material
From table 2 data as can be seen: polyurethane perfusion tire obturator material all is lower than foam filled tyre obturator material through repeatedly compressing back temperature and permanent deformation after the 70 ℃ * 24h hot air aging, illustrates that polyurethane perfusion tire obturator material ageing-resistant performance is better than foam filled tyre obturator material.
3, tread mix physical and mechanical properties
Test results sees Table 3.
Table 3 tread mix The performance test results
As can be seen from Table 3: the wear volume of polyurethane perfusion Outer Tyre is better than foam filled tyre, is 76% of foam filled tyre; Other physical and mechanical propertiess of polyurethane perfusion tire tread compound are also a little more than foam filled tyre.Can infer: only compare from the wear volume aspect of performance, be 1.3 times of foam filled tyre the service life with polyurethane perfusion tire of identical pattern depth.
4, memory property
Polyurethane perfusion tire obturator material be after chemical reaction form full cross-linked degree and the higher high molecular polymer of molecule regularity arranged, the possibility of cracking, sex change, degraded does not take place at normal temperatures, be in a highly stable state, so the ability of anti-external factor influence is stronger, can in normal storage environment, keep original molecular structure for a long time and do not change, so that polyurethane pours into tyre storage is chronic.
Foam filled tyre obturator material is formed by rubber pange, when after chemical reaction, have the reaction of part low temperature volatility weighting material or remaining foaming agent not exclusively, above material meeting recurring structure or phase-state change in long-term storing process, in addition, rubber thickness between the foam filled tyre obturator material bubble is less than 0.2mm, thereby minute bubble can break and form air pocket and cause the big normal use that influences tire of tire local deformation in long-term storing process, so foam filled tyre long storage time, the mal storage can have influence on the maintenance of tire face shaping and the actual in-use performance of tire greatly, and the foam filled tyre period of storage is short.
5, tire physical dimension and D/W performance ratio are
Test results sees Table 4.
Table 4 tire physical dimension and D/W The performance test results
As can be seen from Table 4: polyurethane perfusion tire and foam filled tyre physical dimension all reach relevant criterion; Polyurethane perfusion tire is suitable with foam filled tyre D/W performance, and the deflection under the polyurethane perfusion loading of tire is slightly less than foam filled tyre; Polyurethane perfusion tread bar trench depth is 249% of a foam filled tyre, if the tread mix abrasion resistance is the same, so under equal conditions, be 2.5 times of foam filled tyre the service life of polyurethane perfusion tire.
6, tyre last test
Test method: undertaken by Q/GL 02926 perfusion tyre last test method(s).
Test condition: moving velocity is 80Km/h, and tyre load is 2500Kg, stipulates that every 30min is a test session, finishes the back in each step-by-step test and gathers the correlation test data.
Test results sees Table 5.
Table 5 tyres durable performance test result
As can be seen from Table 5: through the durability test cycle of identical time, the temperature rise ratio polyurethane of foam filled tyre perfusion tire is high more than 25 ℃; It is 180min that foam filled tyre adds up proving time, travelled distance 240km, and it is 300min that polyurethane perfusion tire adds up proving time, travelled distance 400km, the durable time of polyurethane perfusion tire is 167% of foam filled tyre than the long 120min of foam filled tyre.As can be known under equal conditions, the long-term use time of polyurethane perfusion tire is long than foam filled tyre; Still can continue to use until damaging fully when in case of emergency, partial phase change appears in the long-time continuously use of polyurethane perfusion tire back pouring material.
In addition, as can be known, foam filled tyre lost efficacy and to damage for moment from test, and imprevision, and polyurethane perfusion tire failure is to change continuously and can discover occurs damaging that tire is entirely ineffective that a process of quite growing arranged from tire.Thereby can draw: polyurethane perfusion tire in use safety performance is better than foam filled tyre, and polyurethane perfusion tire has manifest signs before inefficacy, can stop the generation of accident.
Conclusion
Advantages such as the more existing foam filled tyre of this heavy caliber towed gun polyurethane perfusion tire provided by the utility model has that maneuverability is strong, safe reliability is high, storage and long service life, to reducing the fault and the accident rate of large caliber gun, it is significant to improve its war skill performance etc.
Description of drawings
Fig. 1 is a heavy caliber towed gun polyurethane perfusion tire obturator material DSC diagram of curves provided by the utility model;
Fig. 2 is existing foam filled tyre obturator material DSC diagram of curves;
The heavy caliber towed gun polyurethane that Fig. 3 is provided for the utility model embodiment pours into the structural representation of tire;
The specific embodiment
With reference to accompanying drawing 3, this maneuverability that the utility model embodiment is provided is strong, the safe reliability height, the heavy caliber towed gun polyurethane perfusion tire of storage and long service life, it is by cover tire 1, the inner tube of a tyre 2, rim strip 4, the polyurethane obturator 3 that forms after the polyurethane material of perfusion is shaped in the wheel rim 5 and the inner tube of a tyre 2 constitutes, have in the cover tire 1 crown groove and run through tyre sidewall, the deflation hole of configuration aluminum plug 6, be with cover tire 1, the inner tube of a tyre 2, after rim strip 4 and wheel rim 5 assemblings, by inner tube valve filling polyurethane material in the inner tube of a tyre 2, after being shaped, stop up with the aluminum plug 6 that is equipped with again the polyurethane materials for the treatment of perfusion in the inner tube of a tyre 2 then that the deflation hole that runs through tyre sidewall offered in the cover tires 1 crown groove prepares.
Claims (2)
1, a kind of heavy caliber towed gun polyurethane perfusion tire, have cover tire (1), the inner tube of a tyre (2), rim strip (4) and wheel rim (5), it is characterized in that: it is that the polyurethane obturator (3) that forms after being shaped by the polyurethane material that pours in cover tire (1), the inner tube of a tyre (2), rim strip (4), wheel rim (5) and the inner tube of a tyre (2) constitutes, and has the deflation hole that runs through tyre sidewall, configuration plug (6) in cover tire (1) the crown groove.
2, heavy caliber towed gun polyurethane perfusion tire according to claim 1 is characterized in that: the plug (6) of the deflation hole configuration that runs through tyre sidewall of offering in its cover tire (1) crown groove is steel or aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201019372U CN201362139Y (en) | 2009-03-18 | 2009-03-18 | Big diameter towed gun polyurethane injection tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201019372U CN201362139Y (en) | 2009-03-18 | 2009-03-18 | Big diameter towed gun polyurethane injection tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201362139Y true CN201362139Y (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201019372U Expired - Fee Related CN201362139Y (en) | 2009-03-18 | 2009-03-18 | Big diameter towed gun polyurethane injection tire |
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| Country | Link |
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| CN (1) | CN201362139Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879232A (en) * | 2012-12-21 | 2014-06-25 | 黄国栋 | Safe tire |
-
2009
- 2009-03-18 CN CNU2009201019372U patent/CN201362139Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879232A (en) * | 2012-12-21 | 2014-06-25 | 黄国栋 | Safe tire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20140318 |