CN212621888U - A loading test device for sealed lid weak area sample spare of launching box - Google Patents
A loading test device for sealed lid weak area sample spare of launching box Download PDFInfo
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- CN212621888U CN212621888U CN202020714697.XU CN202020714697U CN212621888U CN 212621888 U CN212621888 U CN 212621888U CN 202020714697 U CN202020714697 U CN 202020714697U CN 212621888 U CN212621888 U CN 212621888U
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Abstract
The utility model belongs to the technical field of the ageing behavior of launching box material inspection, specifically disclose a load test device that is used for the sealed weak area sample spare of launching box, include: the tool main body comprises a first flat plate, a second flat plate and a supporting rod; the number of the supporting rods is multiple, two ends of the supporting rods are respectively connected with the first flat plate and the second flat plate, and the connected first flat plate and the connected second flat plate are parallel to each other; the first limiting part is arranged on the first flat plate and is suitable for being connected with the lower end of the sample piece in the weak area of the sealing cover of the launching box; the second limiting part is vertically arranged on the second flat plate and can move up and down relative to the second flat plate; the second limiting part is suitable for being connected with the upper end of the weak area sample piece of the sealing cover of the launching box. Through the arrangement of the structure, the pressure-bearing condition of the sample piece of the weak area of the sealing cover of the launching box can be simulated, so that the change condition of the structural life of the weak area of the sealing cover under the influence of environmental factors can be well predicted.
Description
Technical Field
The utility model belongs to the technical field of the ageing behavior of launching box material inspection, a loading test device for launching box seals lid weak area sample spare specifically is disclosed.
Background
The fragile sealing cover made of the composite material has the characteristics of short uncovering reaction time, high uncovering speed, light separating body, strong environmental resistance adaptability and the like, and is more and more applied to the field of box type launching of a flight body. In order to separate the sealing cover according to a predesigned form, most of the existing composite sealing covers are provided with a weak area on the inner surface of the sealing cover, so that a stress concentration area is formed at the weak area of the cover body under the action of gas flow or shock wave, and the stress concentration area is damaged and separated before a sealing cover body along with the increase of pressure in a launching box. Although the forming method of the weak area of the sealing cover can meet the technical requirements of pressure bearing and separation of products through the structural optimization design and experimental verification in the early stage, a certain pressure is stored in the launching box for a long time, and the pressure continuously and periodically changes along with the influence of environmental factors such as environmental temperature, humidity, ultraviolet rays and the like. Therefore, it is highly desirable to evaluate the long term bearing life reliability of the seal gland.
At present, the evaluation method of the service life of the composite material is mainly used for predicting through an artificial accelerated aging test method. For the box-type composite material sealing cover, the service life evaluation mainly focuses on the change of the strength of the weak area of the sealing cover under the combined action of pressure bearing and environment. The existing research method is to prepare a tensile standard sample piece containing a weak area structure, place the test piece into a temperature and humidity environment test box without considering the effect of air pressure load, and then apply environment conditions of different temperatures, humidity, ultraviolet rays and the like to simulate the aging condition of the strength of the weak area of a product, although the method can better predict the change condition of the structural life of the weak area of the sealing cover under the influence of environmental factors. However, the test evaluation method is different from the actual use condition of the sealing cover, the composite sealing cover is one of the main components of the box body and mainly plays a role in daily sealing and gas flow drainage during working, and therefore, the influence of common environmental factors such as air pressure load, temperature and humidity on the product strength must be considered when the long-term bearing life reliability of the composite sealing cover is researched.
Chinese patent CN210293928U discloses a tensile test piece and tensile test device for bond strength of steel fiber concrete, but the above structure is complex and only one experiment can be performed at one time, the manufacturing cost is high and the utilization rate is low.
Therefore, not enough more than, the utility model discloses the urgent need provides a load test device that is used for the sealed weak district appearance piece of launching box.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a load test device that is used for the sealed weak area sample spare of launching box to solve among the prior art can't provide the problem of pressure-bearing state for the sample spare.
The utility model provides a load test device that is used for sealed lid weak area sample spare of launching box, include: the tool comprises a tool main body, a tool main body and a tool, wherein the tool main body comprises a first flat plate, a second flat plate and a supporting rod; the number of the supporting rods is multiple, two ends of the supporting rods are respectively connected with the first flat plate and the second flat plate, and the first flat plate and the second flat plate after connection are parallel to each other; the first limiting part is arranged on the first flat plate and is suitable for being connected with the lower end of the sample piece in the weak area of the sealing cover of the launching box; the second limiting part is arranged on the second flat plate and can move up and down relative to the second flat plate; the second limiting part is suitable for being connected with the upper end of the weak area sample piece of the sealing cover of the launching box.
The loading test device for the sample piece in the weak area of the sealing cover of the launch box further preferably comprises a second limiting part and a second limiting part, wherein the second limiting part comprises a threaded screw and a first limiting nut; the threaded screw rod is inserted into the first flat plate; the first limiting nut is screwed on the threaded screw above the second flat plate.
The loading test device for the sample piece in the weak area of the sealing cover of the launch box as described above is further preferred that the second limiting portion further comprises a tension spring, and the tension spring is connected to the lower end of the threaded screw and is suitable for being connected with the sample piece in the weak area of the sealing cover of the launch box.
The loading test device for the sample piece in the weak area of the sealing cover of the launching box further preferably comprises a connecting block and a fastening piece, wherein the connecting block is cup-shaped, the bottom of the connecting block is provided with a first round hole, and the side wall of the connecting block is provided with a second round hole; the fastener penetrates through the first round hole to be connected with the lower end of the threaded screw; the upper end of the tension spring is connected with the second round hole.
The loading test device for the sample piece in the weak area of the sealing cover of the launch box further preferably further comprises a second limiting nut, and the second limiting nut is suspended on the threaded screw below the second flat plate.
The loading test device for the sample piece in the weak area of the sealing cover of the launching box further preferably comprises a first limiting part and a second limiting part, wherein the first limiting part comprises at least 2 positioning blocks and positioning rods, the 2 positioning blocks are all arranged on the first flat plate, and a through hole is formed in the middle of each positioning block; the positioning rod penetrates through the positioning hole and is suitable for being connected with the lower end of the weak area sample piece of the sealing cover of the launching box.
The loading test device for the weak area sample piece of the sealing cover of the launching box is further preferably characterized in that a plurality of positioning blocks penetrate through each positioning rod, the positioning blocks are uniformly distributed on the positioning rods, and the distribution intervals are suitable for accommodating one weak area sample piece of the sealing cover of the launching box.
The loading test device for the sample piece in the weak area of the sealing cover of the launching box is further preferably characterized in that the first limiting part is provided with at least two positioning rods, and the at least two positioning rods are parallel to each other.
The loading test device for the sample piece in the weak area of the sealing cover of the launching box is further preferably characterized in that the tool main body is further provided with a plurality of handles, and the handles are respectively arranged on the outer sides of the support rods.
The loading test device for the sample piece in the weak area of the sealing cover of the launch box is further preferably characterized in that the support rod is made of a stainless steel square pipe.
Compared with the prior art, the utility model has the following advantage:
the utility model provides a load test device for sealed lid weak area sample piece of launching box mainly includes frock main part, first spacing portion and the spacing portion of second, wherein through the lower extreme restraint of the sealed lid weak area sample piece of first spacing portion and launching box, the upper end restraint of the sealed lid weak area sample piece of second spacing portion and launching box can be adjusted through the spacing portion of second the pressure-bearing effort of the sealed lid weak area sample piece of launching box to the pressure-bearing condition of the sealed lid weak area of simulation launching box puts into temperature and humidity environmental test incasement with the above-mentioned load test device including the sealed lid weak area sample piece of launching box afterwards, then exerts the ageing condition of environmental conditions simulation product weak area intensity such as different temperatures, humidity, ultraviolet ray again. Through the arrangement of the structure, the pressure-bearing condition of the sample piece of the weak area of the sealing cover of the launching box can be simulated, so that the change condition of the structural life of the weak area of the sealing cover under the influence of environmental factors can be well predicted.
Drawings
Fig. 1 is a schematic perspective view of a loading test apparatus for a sample in a weak area of a sealing cover of a launch box according to the present invention;
FIG. 2 is a view in the direction B of FIG. 1;
fig. 3 is a view in the direction a in fig. 1.
Description of reference numerals:
1-a second flat plate, 2-a first flat plate, 3-a support rod, 4-a threaded screw, 5-a first limit nut, 6-a tension spring, 7-a positioning block, 8-a positioning rod, 9-a launching box sealing cover weak area sample piece and 10-a handle.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
For the use of the loading test device that is used for the sealed lid weak area sample spare of launching box in cooperation this embodiment, need all set up the round hole that is used for connecting at the sealed lid weak area sample spare 9's of launching box both ends.
As shown in fig. 1 to 3, the loading test apparatus for the sample of the weak area of the sealing cover of the launch box disclosed in this embodiment includes: the tool comprises a tool main body, a tool main body and a tool, wherein the tool main body comprises a first flat plate 2, a second flat plate 1 and a support rod 3; the number of the supporting rods 3 is multiple, two ends of the supporting rods 3 are respectively connected with the first flat plate 2 and the second flat plate 1, and the first flat plate 2 and the second flat plate 1 after connection are parallel to each other; the first limiting part is arranged on the first flat plate 2 and is suitable for being connected with the lower end of the weak area sample piece 9 of the sealing cover of the launching box; the second limiting part is vertically arranged on the second flat plate 1 and can move up and down relative to the second flat plate 1; the second limiting part is suitable for being connected with the upper end of the weak area sample piece 9 of the sealing cover of the launching box.
In the structure, the first limiting part is constrained with the lower end of the weak area sample piece 9 of the transmitting box sealing cover, the second limiting part is constrained with the upper end of the weak area sample piece 9 of the transmitting box sealing cover, the bearing acting force of the weak area sample piece 9 of the transmitting box sealing cover is adjusted through the second limiting part, so that the bearing condition of the weak area of the transmitting box sealing cover is simulated, the loading test device comprising the weak area sample piece 9 of the transmitting box sealing cover is placed into the temperature and humidity environment test box, and then the aging condition of the product weak area strength is simulated by applying environment conditions of different temperatures, humidity, ultraviolet rays and the like.
As a preferred embodiment of this embodiment, further, the second limiting part includes a threaded screw 4 and a first limiting nut 5; the threaded screw rod 4 is inserted into the first flat plate 2; the first limiting nut 5 is screwed on the threaded screw rod 4 above the second flat plate 1. Furthermore, the second limiting part further comprises a tension spring 6, and the tension spring 6 is connected to the lower end of the threaded screw rod 4 and is suitable for being connected with the weak area sample piece 9 of the sealing cover of the launching box. Furthermore, the second limiting part also comprises a connecting block and a fastening piece, the connecting block is cup-shaped, the bottom of the connecting block is provided with a first round hole, and the side wall of the connecting block is provided with a second round hole; the fastener penetrates through the first round hole to be connected with the lower end of the threaded screw rod 4; the upper end of the tension spring 6 is connected with the second round hole. Furthermore, the second limiting part further comprises a second limiting nut, and the second limiting nut is suspended on the threaded screw rod 4 below the second flat plate 1.
In the structure, the threaded screw rod 4 is in threaded connection with the second flat plate 1, the first limiting nut 5 is arranged on the threaded screw rod 4 above the second flat plate 1 in a rotating mode, the threaded screw rod 4 can be adjusted by rotating the first limiting nut 5 to move up and down, and the pressure bearing condition of the weak area sample piece 9 of the sealing cover of the launching box connected to the lower end of the threaded screw rod 4 is further adjusted. Meanwhile, the change of the tension is buffered by arranging the tension spring 6, so that the weak area sample piece 9 of the sealing cover of the launching box is uniformly stressed. In addition, for avoiding the sealed lid weak area appearance piece 9 of launching box to rotate along with threaded screw 4 together, cause the test piece to take place to twist reverse, still be equipped with connecting block and fastener, wherein, the connecting block pass through fastener swing joint in threaded screw 4's downside, and do not rotate along with threaded screw 4 together, and then make the sealed lid weak area appearance piece 9 of launching box keep the vertical state during the fastening to when avoiding exerting load for the sealed lid weak area appearance piece 9 of launching box, the sealed lid weak area appearance piece 9 of launching box takes place to twist reverse.
As a preferred embodiment of this embodiment, further, the first limiting portion includes positioning blocks 7 and positioning rods 8, the number of the positioning blocks 7 is at least 2, 2 positioning blocks 7 are all mounted on the first flat plate 2, and a through hole is formed in the middle of each positioning block 7; the positioning rod 8 penetrates through the positioning hole and is suitable for being connected with the lower end of the weak area sample piece 9 of the sealing cover of the launching box. The embodiment further discloses the structure of first spacing portion, and in the above-mentioned structure, 7 accessible fasteners of locating piece are fixed on first flat board 2, locating lever 8 then wears to establish in the through hole of locating piece 7, the lower extreme round hole of the sealed lid weak area appearance piece of transmission case 9 then the suit is on locating lever 8. Furthermore, each positioning rod 8 is provided with a plurality of positioning blocks 7 in a penetrating manner, the positioning blocks 7 are uniformly distributed on the positioning rod 8, and the distribution intervals are suitable for accommodating one weak area sample piece 9 of the sealing cover of the launching box. The arrangement of the structure is suitable for being simultaneously connected with a plurality of the weak area sample pieces 9 of the sealing covers of the launching boxes, and the positioning rod 8 is ensured to be positioned for each weak area sample piece 9 of the sealing covers of the launching boxes to provide the same constraint, so that the weak area sample pieces 9 of the sealing covers of the launching boxes are in the same state, and the accuracy of data is ensured. Furthermore, at least two locating rods 8 are arranged on the first limiting part, and the at least two locating rods 8 are parallel to each other. Preferably, in this embodiment, the number of the positioning rods 8 is 3.
As a preferred embodiment of the present invention, the tool main body is further provided with a plurality of handles 10, and the plurality of handles 10 are respectively disposed outside the plurality of support rods 3. The handle 10 is adapted to carry the load testing apparatus described above.
As a preferred embodiment of the present embodiment, further, the support rod 3 is made of a stainless steel square tube.
Further, this embodiment has still disclosed the application method of above-mentioned a loading test device for launching box sealed lid weak area sample:
firstly, a first flat plate 2, a second flat plate 1 and a support rod 3 are taken and assembled into a tool main body, then a connecting block, a threaded screw rod 4, a first limit nut 5 and a second limit nut are taken and respectively installed on the first flat plate 2 and the second flat plate 1 according to the requirements; secondly, taking a connecting block and a fastening piece, and movably installing the connecting block at the lower end of the threaded screw rod 4 through the fastening piece; secondly, taking a positioning rod 8 and a transmitting box sealing cover weak area sample piece 9, firstly, penetrating the positioning rod 8 into a through hole of a positioning block 7 on the outer side, then sequentially sleeving a plurality of transmitting box sealing cover weak area sample pieces 9 on the positioning rod 8 according to the sequence that one transmitting box sealing cover weak area sample piece 9 is sleeved and then penetrates through one through hole, and realizing the connection between the positioning rod 8 and the positioning block 7; taking the tension spring 6 again, sleeving one end of the tension spring at the upper end of the weak area sample piece 9 of the sealing cover of the launching box, and sleeving the other end of the tension spring in the round hole of the connecting block; and finally, rotating a first limiting nut 5 to adjust the threaded screw rod 4, adjusting the stress condition of the weak area sample piece 9 of the sealing cover of the launching box through the change of the upper position and the lower position of the threaded screw rod 4, then placing the sample piece into a temperature and humidity environment test box, and then applying environment conditions of different temperatures, humidity, ultraviolet rays and the like to simulate the aging condition of the product weak area strength.
Compared with the prior art, the utility model discloses a load test device for sealed lid weak area sample spare of launching box has following beneficial effect:
the utility model provides a load test device for launching box sealed lid weak area sample spare mainly includes frock main part, first spacing portion and second spacing portion, wherein through the restraint of the lower extreme of first spacing portion and launching box sealed lid weak area sample spare 9, the restraint of the upper extreme and launching box sealed lid weak area sample spare 9 of second spacing portion and can adjust through second spacing portion the bearing effort of launching box sealed lid weak area sample spare 9 to the pressure-bearing condition of simulation launching box sealed lid weak area, afterwards puts the above-mentioned load test device including launching box sealed lid weak area sample spare 9 into humiture environmental test incasement again, and then exerts environmental conditions such as different temperatures, humidity, ultraviolet ray and so on and simulates the ageing condition of product weak area intensity, through the setting of above-mentioned structure, can assist the simulation launching box sealed lid weak area sample spare 9's pressure-bearing condition, therefore, the change condition of the structural life of the weak area of the sealing cover under the influence of environmental factors of the product can be well predicted.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A load test device that is used for sealed lid weak area sample spare of launching box, its characterized in that includes:
the tool comprises a tool main body, a tool main body and a tool, wherein the tool main body comprises a first flat plate, a second flat plate and a supporting rod; the number of the supporting rods is multiple, two ends of the supporting rods are respectively connected with the first flat plate and the second flat plate, and the first flat plate and the second flat plate after connection are parallel to each other;
the first limiting part is arranged on the first flat plate and is suitable for being connected with the lower end of the sample piece in the weak area of the sealing cover of the launching box;
the second limiting part is arranged on the second flat plate and can move up and down relative to the second flat plate; the second limiting part is suitable for being connected with the upper end of the weak area sample piece of the sealing cover of the launching box.
2. The loading test device for the sample piece of the weak area of the sealing cover of the launch box as recited in claim 1, wherein the second limiting part comprises a threaded screw and a first limiting nut; the threaded screw rod is inserted into the first flat plate; the first limiting nut is screwed on the threaded screw above the second flat plate.
3. The loading test device for the sample of the capsule sealing cover weak area of the launch box as claimed in claim 2, wherein the second limiting portion further comprises a tension spring connected to the lower end of the threaded screw and adapted to be connected with the sample of the capsule sealing cover weak area of the launch box.
4. The loading test apparatus for the sample of the weak area of the sealing cover of the launching box as claimed in claim 3,
the second limiting part also comprises a connecting block and a fastening piece, the connecting block is cup-shaped, the bottom of the connecting block is provided with a first round hole, and the side wall of the connecting block is provided with a second round hole;
the fastener penetrates through the first round hole to be connected with the lower end of the threaded screw; the upper end of the tension spring is connected with the second round hole.
5. The loading test device for the sample of the weak area of the sealing cover of the launch box as claimed in claim 4, wherein the second limiting portion further comprises a second limiting nut, and the second limiting nut is suspended on the threaded screw below the second plate.
6. The load testing apparatus for a sample of the weak area of a sealing cover of a launch box according to any of claims 1 to 5,
the first limiting part comprises at least 2 positioning blocks and positioning rods, the 2 positioning blocks are all arranged on the first flat plate, and a through hole is formed in the middle of each positioning block; the positioning rod penetrates through the through hole and is suitable for being connected with the lower end of the weak area sample piece of the sealing cover of the launching box.
7. The loading test apparatus for the sample of the weak area of the sealing cover of the launching box as claimed in claim 6,
every wear to be equipped with a plurality of locating pieces on the locating lever, it is a plurality of the locating piece is in evenly arrange on the locating lever, and the interval of arranging is suitable for holding one the sealed weak area appearance piece of launching box.
8. The loading test device for the sample piece in the weak area of the sealing cover of the launching box as recited in claim 7, wherein at least two positioning rods are arranged on the first limiting part, and the at least two positioning rods are parallel to each other.
9. The load testing apparatus for the sample of the weak area of the sealing cover of the launching box according to claim 8,
still be equipped with a plurality of handles in the frock main part, it is a plurality of the handle sets up respectively in a plurality of the outside of bracing piece.
10. The load testing apparatus for the sample of the capsule seal weak area of the shooting box of claim 9, wherein the support rods are made of stainless steel square tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020714697.XU CN212621888U (en) | 2020-04-30 | 2020-04-30 | A loading test device for sealed lid weak area sample spare of launching box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020714697.XU CN212621888U (en) | 2020-04-30 | 2020-04-30 | A loading test device for sealed lid weak area sample spare of launching box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212621888U true CN212621888U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020714697.XU Active CN212621888U (en) | 2020-04-30 | 2020-04-30 | A loading test device for sealed lid weak area sample spare of launching box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212621888U (en) |
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2020
- 2020-04-30 CN CN202020714697.XU patent/CN212621888U/en active Active
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