CN204269448U - A kind of experimental provision of multilayer rut test piece - Google Patents
A kind of experimental provision of multilayer rut test piece Download PDFInfo
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- CN204269448U CN204269448U CN201420787817.3U CN201420787817U CN204269448U CN 204269448 U CN204269448 U CN 204269448U CN 201420787817 U CN201420787817 U CN 201420787817U CN 204269448 U CN204269448 U CN 204269448U
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Abstract
The utility model discloses a kind of experimental provision of multilayer rut test piece, comprise stripper apparatus, this stripper apparatus comprises base, the top of base is provided with opening, the lifting device that output shaft points to opening direction is installed in base, opening symmetria bilateralis is provided with the draw-in groove for blocking die trial, and the through other end in one end of draw-in groove is closed, and the bearing of trend of draw-in groove is vertical with the output shaft of lifting device.Product described in the utility model can be used for the rut test piece of shaping sandwich construction and freely adjusts the thickness of different structure layer and copulation state between laminates etc., can convenient and swift and harmless taking-up rut plate test specimen in conjunction with two " F " type stripper apparatus in the utility model, adopt the utility model device to the overall anti-rut behavior of research bituminous pavement and to improve test accuracy significant.The utility model structure is simple simultaneously, combined and instant, and occupation of land space is little, and practical value is high.
Description
Technical field
The utility model relates to a kind of experimental provision of asphalt, is specifically related to a kind of multilayer rut test piece mould and stripper apparatus.
Background technology
In recent years, along with the development of China's Road Transportation cause, the axle of vehicle carries continuous increase, and overloading is more severe, and bituminous pavement just occurs serious rut disease in the near future being open to traffic, and has a strong impact on passing through and jeopardize traffic safety smoothly of road.In order to control the generation of rut disease, need from many-sided effort such as the design of asphalt, constructions.Specify in China's Asphalt Pavement Construction Technique specification, the asphalt that mix field produces must check its anti-rut behavior, to control the quality of asphalt from source before making.
At present, the indoor wheel tracking test of China adopts the rut test piece of tabular usually, corresponding regulation is had to the size of the mould of shaping test piece: the base plate that mould is made by steel plate and side form form, and die inside is of a size of 300mm × 300mm × 50mm in " highway engineering pitch and Asphalt Mixture Experiment code " (JTJ 052-2011).With bolts between base plate and side form and side form, install, dismantle very inconvenient, after shaping rut test piece health completes, be difficult to rut test piece to take out from mould, need the coupling bolt taking side form apart.When adopting modified bitumen, high-viscosity asphalt etc. to produce rut test piece as binder, because the viscosity of binder is higher, test specimen and contacting dies very firm, even needing firmly to knock with rubber hammer the mould taking side form apart from the side could take out test specimen from mould.This situation brings very large inconvenience to experimentation, and constantly the die trial of hammering rut can produce vibration and cause certain damage to the inner structure of test specimen simultaneously, and then produces certain impact to test findings.
The height of traditional rut die trial is only 5cm, uses this kind of mould can only the molding thickness individual layer bitumen mixture specimen that is 5cm.The thickness on this and actual road surface differs greatly, and the thickness on road surface constantly increases especially now, and the thickness of Long Life Pavement even reaches more than 30cm.Meanwhile, the various structures of bituminous pavement, various interlayer punishment mode all obtain in various degree application.Therefore, adopt traditional rut mould cannot change the thickness of test specimen, the test of sandwich construction and interlayer punishment combination can not be carried out, the high-temperature behavior of individual layer fixed thickness asphalt can only be evaluated, can not meet the demand of research bituminous pavement high temperature anti-rut behavior.Based on this, develop the mould of the rut test piece of the shaping different-thickness of a kind of energy and textural association, the convenient stripper apparatus taking out rut test piece just seems particularly necessary simultaneously.
Summary of the invention
The defect existed for above-mentioned prior art or deficiency, the purpose of this utility model is the experimental provision providing a kind of multilayer rut test piece, can the rut test piece of shaping various structures combination, and convenient, effectively the demoulding is carried out to rut test piece.
A kind of experimental provision of multilayer rut test piece, comprise stripper apparatus, this stripper apparatus comprises base, the top of base is provided with opening, the lifting device that output shaft points to opening direction is installed in base, opening symmetria bilateralis is provided with the draw-in groove for blocking die trial, and the through other end in one end of draw-in groove is closed, and the bearing of trend of draw-in groove is vertical with the output shaft of lifting device.
Further, described base inner wall is consolidated with the protective shield being parallel to draw-in groove, protective shield offers through hole, the output shaft of lifting device is arranged through this through hole.
Concrete, the longitudinal cross-section of described draw-in groove is " F " shape.
Further, the output shaft of described lifting device is provided with the top board arranged perpendicular to output shaft, the size of top board is not more than the size of test specimen in die trial.
Further, described die trial comprises base plate, and base plate is disposed with bottom side form and side form from the bottom to top, and wherein bottom side form is identical with the inside dimension size of side form, side form at least arranges one, the clamp outer wall of bottom side form being provided with handle and coordinating with draw-in groove.
Concrete, described bottom side form and side form are " mouth " shape structure.
Optionally, connected by support between described base plate and bottom side form, be connected with projection by support between bottom side form and side form.
Concrete, described support is rod-like structure, and external thread has been attacked in one end of support, the other end of support is axially provided with counterbore along it, be provided with internal thread in counterbore, base plate be provided with the threaded hole coordinated with external thread, bottom side form and side form are provided with the circular hole with support assorted.
Concrete, described projection is the stripe board being arranged on bottom side form and side form upper surface, and is provided with the bar-shaped trough coordinated with stripe board at the lower surface of side form.
Optionally, described lifting device adopts lifting jack.
Compared with prior art, the utility model has the advantage of:
(1) the utility model adopts the support of differing heights bottom side form, side form and base plate to be linked together, bottom side form and side form can slide up and down along support, can the compound rut plate test specimen of the shaping sandwich construction of gradation, also experimentally can need the thickness of independent assortment different structure layer simultaneously;
(2) bottom side form both sides arrange stripe board outwardly, by the die trial forming composite plate test specimen conversely mouth down be placed in stripper apparatus, the clamp that bottom side form both sides are arranged outwardly is stuck in the draw-in groove of stripper apparatus, utilizes the top board on lifting jack top to apply pressure and is deviate from by rut test piece;
(3) adopt the utility model patent shapingly can have the compound rut plate test specimen of different structure combination, and can very easily test specimen be deviate from from die trial, larger error can not be brought to experimental result.The utility model structure is simple, combined and instant, and occupation of land space is little, and practical value is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of stripper apparatus;
Fig. 2 is the structural representation of die trial;
Fig. 3 is the floor map of base plate;
Fig. 4 is the structural representation of support;
Fig. 5 is the structural scheme of mechanism of bottom side form;
Fig. 6 is the side view of bottom side form;
Fig. 7 is the structural representation of side form;
Fig. 8 is the side view of side form;
Fig. 9 is the front view of stripper apparatus;
Figure 10 is the side view of stripper apparatus;
Number in the figure represents: 1-lifting device, 2-base, 3-opening, 4-top board, 5-draw-in groove, 6-protective shield, 7-base plate, 8-clamp, 9-circular hole, 10-side form, 11-handle, 12-threaded hole, 13-support, 14-counterbore, 15-external thread, 16-stripe board, 17-bar-shaped trough, 18-bottom side form;
Embodiment
The experimental provision of existing asphalt mixture in track test also exists complex structure, operation inconvenience etc. problem, the utility model proposes one be beneficial to add layer coordinate, can conveniently prepare multilayer rut test piece and conveniently stripped experimental provision.
A kind of experimental provision of multilayer rut test piece, comprise stripper apparatus, this stripper apparatus comprises base 2, the top of base 2 is provided with opening 3, the lifting device 1 that output shaft points to opening 3 direction is installed in base 2, opening 3 symmetria bilateralis is provided with the draw-in groove 5 for blocking die trial, and the through other end in one end of draw-in groove 5 is closed, and the bearing of trend of draw-in groove 5 is vertical with the output shaft of lifting device 1.
As shown in Figure 1, base 2 is made up of one flat plate and two side plates be vertically set in dull and stereotyped symmetry the structure of stripper apparatus, the demoulding test specimen in convenient observation base 2 and convenient operation.The opening 3 on base 2 top is for placing die trial, after utilizing die trial to produce complete rut test piece, die trial and test specimen are placed on opening 3 position jointly, and utilize draw-in groove 5 die trial to be blocked, now open lifting device 1, utilize the output shaft of lifting device 1, test specimen is ejected from die trial, thus when relying on impact, damaging die trial, by complete for test specimen taking-up, to ensure the usability of test specimen.
When lifting device 1 operates, its output shaft moves straight up, and in the die trial that draw-in groove 5 blocks, when test specimen is arranged perpendicular to output shaft, could eject fully harmless for die trial.Therefore the bearing of trend arranging draw-in groove 5 is vertical with the output shaft of lifting device 1, and after installing die trial, the surface of test specimen is just in time vertical with output shaft.
In order to make the experimental provision of this programme have more excellent usability, inventor, on the basis of aforementioned structure, proposes following optional improvement project further:
Base 2 inwall is consolidated with the protective shield 6 being parallel to draw-in groove 5, protective shield 6 offers through hole, the output shaft of lifting device 1 is arranged through this through hole.
When test specimen is ejected from die trial, part die trial will be fallen in base 2, impact for preventing the running of die trial to lifting device 1 come off, be provided with protective shield 6 structure, the edge of protective shield 6 is cemented on base 2 inwall, also arrange perpendicular to output shaft simultaneously, the function of carrying top pendant thing can not only be played, further reinforcement effect can also be played to base 2 structure.
The longitudinal cross-section of draw-in groove 5 is " F " shape.
As shown in Figure 1, a kind of structure of comparatively convenient operation is, the longitudinal cross-section of draw-in groove 5 is F shape, longitudinally refers to along the length direction perpendicular to draw-in groove 5; As previously mentioned, through one end, draw-in groove 5 one end is closed, so when die trial is arranged on opening 3, utilize draw-in groove 5 through one end die trial to be pushed in draw-in groove 5, and be subject to the restriction that draw-in groove 5 closes one end, can not driven forward be continued, and now die trial has been in suitable position, this similar, in drawer, is convenient to install die trial, is also prevented die trial from occurring the situations such as slip in operation.
The output shaft of lifting device 1 is provided with the top board 4 arranged perpendicular to output shaft, the size of top board 4 is not more than the size of test specimen in die trial.
Eject in the process of test specimen when the output shaft of lifting device 1 moves upward, as the output shaft of lifting device 1 and the contact point of test specimen too small, then larger pressure will be born in test specimen local, may cause damage to test specimen.Therefore be provided with top board 4 structure, increase the contact area of output shaft and test specimen, but this top board 4 can not be larger than test specimen, to prevent from pushing up die trial during top board 4 excessive movements.Here size refers to planar dimension.
Also proposed a kind of die trial being convenient to coordinate with above-mentioned stripper apparatus in this device, as shown in Figure 2, die trial is sandwich construction, can make multilayer test specimen as required.Base plate 7 in die trial is for carrying test specimen, and what contact with base plate 7 is bottom side form 18, and remaining side form 10 can be installed on bottom side form 18, the test specimen number of plies that namely number of plies installed additional makes.Bottom side form 18 is substantially identical with the structure of side form 10, and just at outer setting jug 11 and the clamp 8 of bottom side form 18, this clamp 8, when the test specimen demoulding, is pushed in the draw-in groove 5 of stripper apparatus, makes test specimen towards lifting device 1, is convenient to knockout course.
Bottom side form 18 and side form 10 are " mouth " shape structure.
General rut test piece experimentally code, is made as square test specimen, and therefore in this programme, bottom side form 18 and side form 10 are degree of lip-rounding structure, have certain thickness, and thickness is the layer thickness making test specimen.
Connected by support 13 between base plate 7 and bottom side form 18, be connected with projection by support 13 between bottom side form 18 and side form 10.
Shaping for ease of multilayer test specimen, need move up and down between bottom side form 18 and side form 10 but can not relatively move left and right, therefore arrange support 13 and raised structures between bottom side form 18 and side form 10, these two kinds of structures all can make relatively to move up and down between the two but can not side-to-side movement.
Support 13 is rod-like structure, external thread 15 has been attacked in one end of support 13, the other end of support 13 is axially provided with counterbore 14 along it, internal thread is provided with in counterbore 14, base plate 7 is provided with the threaded hole 12 coordinated with external thread 15, bottom side form 18 and side form 10 are provided with the circular hole 9 coordinated with support 13.
A kind of support 13 structure is preferably that as shown in Figure 4, support 13 is one section of bar, and bar is divided into two parts, and a part of outer setting has external thread 15, and another part is provided with counterbore 14 vertically, has internal thread in counterbore 14.Threaded hole 12 on base plate 7, external thread 15 part of support 13 be screwed into, and the length of support 13 part spilt is identical with the thickness of a side form 10 or bottom side form 18.Such as support 13 is fixed on after in threaded hole 12, utilizes the circular hole 9 at bottom side form 18 edge, circular hole 9 alignment bracket 13 of bottom side form 18 is placed on base plate 7 from top to bottom, now can carries out the making of one deck test specimen; When needing to make multilayer test specimen, in already installed support 13, a support 13 is installed again, the external thread 15 of upper bracket 13 and bottom have installed the screw-internal thread fit in support 13 counterbore 14, be equivalent to the length extending support 13, the part extended equals the thickness of a side form 10, is now installed on bottom side form 18 by another side form 10 by the mode of circular hole 9 correspondence again, carries out the preparation of double-deck test specimen.The making of multilayer test specimen only needs according to circumstances to install side form 10 additional.
Projection is the stripe board 16 being arranged on bottom side form 18 and side form 10 upper surface, and is provided with the bar-shaped trough 17 coordinated with stripe board 16 at the lower surface of side form 10.
Raised structures is to reinforce two side forms 10 or the connection between side form 10 and bottom side form 18, by the double action of projection and support 13, its in the vertical direction can be made to have good cooperation, and can not movement on occurred level direction.
Lifting device 1 can adopt various structures, and such as lifting jack is exactly the mode of a kind of handled easily and installation.
Embodiment:
Device as Figure 1-10 shows, in one preferably actual use procedure, the height that support 13 removes external thread 15 part is 1cm, 2cm, 4cm and 5cm, and the height of bottom side form 18 and side form 10 is corresponding with it.
The surrounding of bottom side form 18 and side form 10 is the one-piece construction of four block plate compositions, and inside dimension is 30cm × 30cm, is highly 5cm, and clamp 8 length of bottom side form 18 both sides is 26cm, and width (part coordinated with draw-in groove 5) is 1.5cm, and thickness is 1cm.
The length of the both sides raised structures upwards of bottom side form 18 and side form 10 is 5cm, width and be highly 0.5cm.
The inside dimension of base 2 is 33cm × 30cm, and lifting jack is fixed in the central area of base 2.
The length of draw-in groove 5 is 30cm, and the width of notch (the through one end of draw-in groove 5) is 1.5cm, and height 1cm, length 28cm, the other end of notch is the entity of 2cm, prevents rut mould from skidding off from the other end.
Top board 4 is of a size of 29.5cm × 29.5cm × 1cm, and the center of top board 4 is provided with the border circular areas corresponding with lifting jack top.
The demoulding course of work of this device is as follows:
After the compound rut plate test specimen of forming is placed more than 24h together with die trial, the mouth down of die trial is placed in stripper apparatus, the clamp 8 of mould is coordinated with the draw-in groove 5 of stripper apparatus, regulate lifting jack to apply pressure to top board 4 MULTILAYER COMPOSITE rut test piece is deviate from from die trial, then by the base plate 7 of compound rut test piece and die trial, support 13, bottom side form 18, side form 10 takes out from stripper apparatus, and the demoulding completes.
Claims (10)
1. the experimental provision of a multilayer rut test piece, comprise stripper apparatus, it is characterized in that, this stripper apparatus comprises base (2), the top of base (2) is provided with opening (3), the lifting device (1) that output shaft points to opening (3) direction is installed in base (2), opening (3) symmetria bilateralis is provided with the draw-in groove (5) for blocking die trial, the through other end in one end of draw-in groove (5) is closed, and the bearing of trend of draw-in groove (5) is vertical with the output shaft of lifting device (1).
2. the experimental provision of multilayer rut test piece as claimed in claim 1, it is characterized in that, described base (2) inwall is consolidated with the protective shield (6) being parallel to draw-in groove (5), (6) offer through hole with protective shield, and the output shaft of lifting device (1) is arranged through this through hole.
3. the experimental provision of multilayer rut test piece as claimed in claim 1 or 2, it is characterized in that, the longitudinal cross-section of described draw-in groove (5) is " F " shape.
4. the experimental provision of multilayer rut test piece as claimed in claim 1 or 2, it is characterized in that, the output shaft of described lifting device (1) is provided with the top board (4) arranged perpendicular to output shaft, the size of top board (4) is not more than the size of test specimen in die trial.
5. the experimental provision of multilayer rut test piece as claimed in claim 1, it is characterized in that, this device also comprises die trial, described die trial comprises base plate (7), base plate (7) is disposed with from the bottom to top bottom side form (18) and side form (10), wherein bottom side form (18) is identical with the inside dimension size of side form (10), side form (10) at least arranges one, the clamp (8) outer wall of bottom side form (18) being provided with handle (11) and coordinating with draw-in groove (5).
6. the experimental provision of multilayer rut test piece as claimed in claim 5, it is characterized in that, described bottom side form (18) and side form (10) are " mouth " shape structure.
7. the experimental provision of multilayer rut test piece as claimed in claim 5, it is characterized in that, connected by support (13) between described base plate (7) and bottom side form (18), be connected with projection by support (13) between bottom side form (18) and side form (10).
8. the experimental provision of multilayer rut test piece as claimed in claim 7, it is characterized in that, described support (13) is rod-like structure, external thread (15) has been attacked in one end of support (13), the other end of support (13) is axially provided with counterbore (14) along it, counterbore is provided with internal thread in (14), base plate (7) is provided with the threaded hole (12) coordinated with external thread (15), bottom side form (18) and side form (10) are provided with the circular hole (9) coordinated with support (13).
9. the experimental provision of multilayer rut test piece as claimed in claim 7, it is characterized in that, described projection for being arranged on the stripe board (16) of bottom side form (18) and side form (10) upper surface, and is provided with the bar-shaped trough (17) coordinated with stripe board (16) at the lower surface of side form (10).
10. the experimental provision of the multilayer rut test piece as described in claim 1,2,5,6,7,8 or 9, is characterized in that, described lifting device (1) adopts lifting jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420787817.3U CN204269448U (en) | 2014-12-12 | 2014-12-12 | A kind of experimental provision of multilayer rut test piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420787817.3U CN204269448U (en) | 2014-12-12 | 2014-12-12 | A kind of experimental provision of multilayer rut test piece |
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| Publication Number | Publication Date |
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| CN204269448U true CN204269448U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420787817.3U Expired - Fee Related CN204269448U (en) | 2014-12-12 | 2014-12-12 | A kind of experimental provision of multilayer rut test piece |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442083A (en) * | 2016-09-18 | 2017-02-22 | 沈阳建筑大学 | Assembly type mold for forming multilayer rutting board simulating pavement structure and use method of mold |
| CN106442951A (en) * | 2016-10-13 | 2017-02-22 | 沈阳建筑大学 | Combined multifunctional track plate device |
| CN106546457A (en) * | 2016-09-30 | 2017-03-29 | 长安大学 | A kind of rut plate test specimen ingot stripper and die trial |
| CN106813964A (en) * | 2017-03-23 | 2017-06-09 | 中国石油大学(华东) | One kind lengthens the automatic preparation facilities of artificial core and preparation method |
-
2014
- 2014-12-12 CN CN201420787817.3U patent/CN204269448U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442083A (en) * | 2016-09-18 | 2017-02-22 | 沈阳建筑大学 | Assembly type mold for forming multilayer rutting board simulating pavement structure and use method of mold |
| CN106546457A (en) * | 2016-09-30 | 2017-03-29 | 长安大学 | A kind of rut plate test specimen ingot stripper and die trial |
| CN106546457B (en) * | 2016-09-30 | 2019-05-10 | 长安大学 | A kind of track plate test specimen ingot stripper and die trial |
| CN106442951A (en) * | 2016-10-13 | 2017-02-22 | 沈阳建筑大学 | Combined multifunctional track plate device |
| CN106813964A (en) * | 2017-03-23 | 2017-06-09 | 中国石油大学(华东) | One kind lengthens the automatic preparation facilities of artificial core and preparation method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20161212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |