LU500913B1 - Indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture - Google Patents

Indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture Download PDF

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Publication number
LU500913B1
LU500913B1 LU500913A LU500913A LU500913B1 LU 500913 B1 LU500913 B1 LU 500913B1 LU 500913 A LU500913 A LU 500913A LU 500913 A LU500913 A LU 500913A LU 500913 B1 LU500913 B1 LU 500913B1
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Luxembourg
Prior art keywords
fixedly connected
plate
testing
micro
testing device
Prior art date
Application number
LU500913A
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German (de)
Inventor
Jinglan Yu
Zhihong Li
Zhanfei Gu
Shuhua Wu
Mingfei Zhang
Yaofei Luo
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Univ Zhengzhou Aeronautics
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Priority to LU500913A priority Critical patent/LU500913B1/en
Application granted granted Critical
Publication of LU500913B1 publication Critical patent/LU500913B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/42—Road-making materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0032—Generation of the force using mechanical means
    • G01N2203/0037—Generation of the force using mechanical means involving a rotating movement, e.g. gearing, cam, eccentric, or centrifuge effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0278—Thin specimens
    • G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0286—Miniature specimen; Testing on microregions of a specimen
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/56—Investigating resistance to wear or abrasion

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The disclosure provides an indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture, comprising a base and a top plate, in which a groove is opened at a middle of a top of the base; a replacement frame is clamped inside the groove to accommodate a testing sample; and a wheel groove is provided at a bottom of the top plate. By setting the replacement frame, the telescopic rod can be contracted to be shortest during testing, and the replacement frame can be placed in the middle of the top of the base when the testing wheel is raised to be at the highest point, so there is no need to lay the testing sample in the testing device and then wait it for cooling, achieving the purpose of improving the test efficiency; by setting the telescopic rod, the air can be introduced into the telescopic rod through the air valve during testing, so that the telescopic rod compresses the tightening spring while extending, and different pressure values can be achieved through different compression amounts of the tightening spring, achieving the purpose of enabling the gravity to be changed steplessly.

Description

BL-5333 ' LU500913
INDOOR TEST PIECE FORMING AND TESTING DEVICE FOR ANTI-RUTTING ABILITY OF MICRO-SURFACE MIXTURE Technical Field
[0001] The disclosure relates to the technical field of mixture testing, more specifically, relates to an indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture.
Background Art
[0002] In preventive maintenance of asphalt pavement, micro- surface mixture is used to fill ruts. The micro-surface technology is developed on the basis of slurry seal in recent years. Micro-surface has been widely used in developed countries such as Europe and America due to technical advantages such as the fast open traffic, excellent anti-skid performance and repairable ruts, long service life. The micro-surface is a thin layer with high skid resistance and durability which is prepared by mixing polymer modified emulsified asphalt, coarse and fine aggregates, fillers, water and additives in accordance with the design ratio into a thin slurry mixture and paved on the original road surface through special mechanical equipments and can make the traffic be opened soon. The time for opening the traffic at the micro-surface varies
BL-5333 LU500913 with the environment of the project. Usually, the traffic can be opened within 1 hour when the temperature is 24°C and the humidity is 50% (or less). According to the different grading of mineral materials, the micro-surface can be divided into type II and type III each represented by MS-2 and MS-3, which can be used for preventive maintenance of asphalt pavements of highways, first and second grade roads and rutting repair of asphalt pavement, as well as cement concrete pavement, cement concrete bridge deck, cement concrete tunnel road surface covering, as well as surface wear layers of newly built or expanded expressways, asphalt pavements of first and second grade roads and cement concrete bridge decks.
[0003] Now, when conducting wheel rut deformation test, it is necessary to use a load wheel tester to simulate the rolling of the wheel on the formed micro-surface mixture. After a certain number of actions, the change of the rutting depth and width of the sample are measured, and the rutting depth of the unit thickness of the sample and the transverse deformation of the unit width are used to evaluate the anti-rutting ability of the mixture. The existing testing device cannot easily replace the sample to be tested when it is used, and it needs a lot of time when testing, causing very low test efficiency, and the weight
BL-5333 LU500913 cannot be adjusted steplessly when the load is increased, causing less test data that can be obtained on the same testing device.
DISCLOSURE Technical Problem
[0004] In view of the disadvantages in the prior art, the disclosure provides an indoor test piece forming and testing device for the anti-rutting ability of micro- surface mixture, aiming to solve problems in the prior art. Technical Solution
[0005] In order to achieve the above objectives, the disclosure disclose an indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture, comprising a base and a top plate, in which a groove 1s opened at a middle of a top of the base; a replacement frame is clamped inside the groove to accommodate a testing sample; a wheel groove is provided at a bottom of the top plate; a rolling wheel is clamped inside the wheel groove; a connecting rod is movably connected with the rolling wheel through a bearing; a mounting plate is fixedly connected with at a bottom of the
BL-5333 LU500913 connecting rod; a telescopic rod is fixedly connected to a bottom of the mounting plate; a spring hole is opened at a bottom of a movable end of the telescopic rod; a pressure rod is inserted into the spring hole; a tightening spring is fixedly connected to a top of the pressure rod, in which a top of the tightening spring is fixedly connected with an inner top wall of the spring hole; a lifting plate is fixedly connected with a bottom of the pressure rod; a bearing plate 1s fixedly connected at a bottom of the lifting plate; a testing wheel matched with the testing sample 1s movably connected with the bearing plate via a rotating shaft; a reduction box is fixedly connected to a side surface of the bearing plate; a moving motor is fixedly connected to a top of the reduction box; and an air cylinder is fixedly connected to a side of a top of the mounting plate.
[0006] Preferably, an air pump box is fixedly connected to a middle of the top of the mounting plate, and an air pump motor is fixedly connected to another side of the top of the mounting plate, in which an output shaft of the air pump motor is drivingly connected to an air pump inside the air pump box, and the air cylinder is connected with the telescopic rod and the air pump through air pipes, respectively.
BL-5333 ) LU500913
[0007] Preferably, an output shaft of the moving motor is key connected with a driving pulley, and the driving pulley is connected with a driven pulley through a belt drive, in which a middle of the driven pulley is key connected with an input shaft of the reduction box, and an output shaft of the reduction box is drivingly connected with the rotating shaft of the testing wheel.
[0008] Preferably, there are two telescopic rods symmetrically arranged at the bottom of the mounting plate, and a triangular plate is provided at each of both sides of the pressure rod, in which a bottom of the triangular plate is fixedly connected to a top of the lifting plate.
[0009] Preferably, a limiting plate is fixedly connected at an inner bottom wall of the groove, and a rectangular groove matched with the limiting plate is opened at a bottom of the replacement frame.
[0010] Preferably, the bottom of the top plate is fixedly connected to the top of the base through a supporting pillar, and there are four supporting pillars distributed in a rectangular array.
Advantageous Effect
[0011] The disclosure provides an indoor test piece forming and testing device for anti-rutting ability of micro-
BL-5333 LU500913 surface mixture, which has the following advantageous effects:
1. in the indoor test piece forming and testing device for the anti-rutting ability of micro-surface mixture, by setting the replacement frame, the telescopic rod can be contracted to be shortest when testing, and by placing the replacement frame in the middle of the top of the base when the testing wheel is raised to the highest point, there is no need to lay the testing sample in the testing device and then wait it for cooling so that the purpose of improving the test efficiency can be achieved;
2. in the indoor sample forming and testing device for the anti-rutting ability of micro-surfacing mixture, by setting the telescopic rod, the air can be introduced into the telescopic rod through the air valve when testing so that the telescopic rod can compress the tightening spring while extending, and by achieving different pressure values through different compression amounts of the tightening spring, the purpose of enabling the gravity to be changed steplessly can be achieved.
Brief Description of Drawings
[0012] Fig. 1 is a schematic side view of the three- dimensional structure of the disclosure;
BL-5333 LU500913 Fig. 2 is a schematic front view of the three- dimensional structure of the disclosure; Fig. 3 is a schematic side view of the structure of the disclosure; Fig. 4 is a schematic cross-sectional view of the telescopic rod of the disclosure.
[0013] In drawings: 1. Base; 2. Testing wheel; 3. Bearing plate; 4. Lifting plate; 5. Mounting plate; 6. Supporting pillar; 7. Top plate; 8. Rolling wheel; 9. Wheel groove; 10. Air pump motor 11. Air pump box; 12. Air cylinder; 13. Telescopic rod; 14. Pressure rod; 15. Triangular plate; 16. Moving motor; 17. Reduction box; 18. Testing sample; 19. Replacement frame; 20. Limiting plate 21. Connecting rod;
22. Spring hole; 23. Tightening spring. Best Mode
[0014] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the disclosure. Obviously, the described embodiments are only a part of the embodiments of the disclosure, rather than all the embodiments.
[0015] As shown in Figs. 1-4, the disclosure discloses an indoor test piece forming and testing device for anti- rutting ability of micro-surface mixture comprising a base
BL-5333 LU500913 1 and a top plate 7, in which the bottom of the top plate 7 is fixedly connected with the top of the base 1 via supporting pillar 6, wherein there are four supporting pillars 6 distributed in a rectangular array; a groove is opened at a middle of a top of the base 1; a replacement frame 19 is clamped inside the groove to accommodate a testing sample 18, in which a limiting plate 20 is fixedly connected at an inner bottom wall of the groove, and a rectangular groove matched with the limiting plate 20 is opened at a bottom of the replacement frame 19; a wheel groove 7 1s provided at a bottom of the top plate 7; a rolling wheel 8 is clamped inside the wheel groove 9; a connecting rod 21 is movably connected with the rolling wheel 8 through a bearing; a mounting plate 5 is fixedly connected with at a bottom of the connecting rod 21; a telescopic rod 13 is fixedly connected to a bottom of the mounting plate 5; a spring hole 22 is opened at a bottom of a movable end of the telescopic rod 13; a pressure rod 14 is inserted into the spring hole 22; a tightening spring 23 is fixedly connected to a top of the pressure rod 14, in which a top of the tightening spring 23 is fixedly connected with an inner top wall of the spring hole 22; a lifting plate 4 is fixedly connected with a bottom of the pressure rod 14, in which there are two telescopic rods 13 symmetrically arranged at the bottom of the mounting plate
BL-5333 LU500913 5, a triangular plate 15 is provided at each of both sides of the pressure rod 14, and a bottom of the triangular plate 15 is fixedly connected to a top of the lifting plate 4; a bearing plate 3 is fixedly connected at a bottom of the lifting plate 4; a testing wheel 2 matched with the testing sample 18is movably connected with the bearing plate 3 via a rotating shaft; a reduction box 17 is fixedly connected to a side surface of the bearing plate 3; a moving motor 16 is fixedly connected to a top of the reduction box 17; and an air cylinder 12 is fixedly connected to a side of a top of the mounting plate 5; an air pump box 11 is fixedly connected to a middle of a top of the mounting plate 5, and an air pump motor 10 is fixedly connected to another side of the top of the mounting plate 5, in which a output shaft of the air pump motor 10 is drivingly connected to an air pump inside the air pump box 11, and the air cylinder 12 is connected with the telescopic rod 13 and the air pump through air pipes, respectively; an output shaft of the moving motor 16 is key connected with a driving pulley, and the driving pulley is connected with a driven pulley through a belt drive, in which a middle of the driven pulley is key connected with an input shaft of the reduction box 17, and an output shaft of the reduction box 17 is drivingly connected with the rotating shaft of the testing wheel 2.
BL-5333 LU500913
[0016] When in use, firstly, the telescopic rod 13 is in shortest state while the testing wheel 2 is in the highest position, and thus, the replacement frame 19 can be placed on the top of the base 1, and the testing wheel 2 will not be in contact with the testing sample 18. During testing, by opening the air valve, the air is introduced into the telescopic rod 13, the tightening spring 23 is compressed when the lifting plate 4 is lowered so that the testing wheel 2 and the testing sample 18 is in contact, and thus, the force of the spring is finally applied to the testing wheel 2. The measurement of the expansion and contraction of the pressure rod 14 in the spring hole 22 is used to obtain the weight of the load, and when the weight of the load is sufficient, the testing wheel 2 is finally driven by the moving motor 16 to roll back and forth on the top of the testing sample 18. After certain times of rolling, the air inside the telescopic rod 13 is pumped out by the air pump inside the air pump box 11, and after the testing wheel 2 reaches the maximum position, the replacement frame 19 is taken out and the next testing sample is replaced for testing. Through the above steps, the test efficiency is improved, and then, the depth of the rut is detected on the testing sample 18 that has been tested.
[0017] In summary, in the disclosure, by setting the replacement frame 19, the telescopic rod 13 can be
BL-5333 LU500913 contracted to be shortest during testing, and the replacement frame 19 can be placed in the middle of the top of the base 1 when the testing wheel 2 is raised to be at the highest point, so there is no need to lay the testing sample 18 in the testing device and then wait it for cooling, and thus, the purpose of improving the test efficiency is achieved; and by setting the telescopic rod 13, the air can be introduced into the telescopic rod 13 through the air valve during testing, so that the telescopic rod 13 can compress the tightening spring 23 while extending, and different pressure values can be achieved through different compression amounts of the tightening spring 23, so the purpose of enabling the gravity to be changed steplessly can be achieved.
[0018] The above descriptions are only the preferred embodiments of the disclosure and are not intended to limit the disclosure. For those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the disclosure shall fall within the scope of protection of the disclosure.

Claims (6)

BL-5333 LU500913 CLAIMS
1. An indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture, comprising a base and a top plate, wherein a groove is opened at a middle of a top of the base; a replacement frame is clamped inside the groove to accommodate a testing sample; a wheel groove is provided at a bottom of the top plate, and a rolling wheel is clamped inside the wheel groove; a connecting rod is movably connected with the rolling wheel through a bearing; a mounting plate is fixedly connected with at a bottom of the connecting rod; a telescopic rod is fixedly connected to a bottom of the mounting plate; a spring hole is opened at a bottom of a movable end of the telescopic rod; a pressure rod is inserted into the spring hole; a tightening spring is fixedly connected to a top of the pressure rod, in which a top of the tightening spring is fixedly connected with an inner top wall of the spring hole; a lifting plate is fixedly connected with a bottom of
BL-5333 LU500913 the pressure rod; a bearing plate is fixedly connected at a bottom of the lifting plate; a testing wheel matched with the testing sample is movably connected with the bearing plate via a rotating shaft; a reduction box is fixedly connected to a side surface of the bearing plate; a moving motor is fixedly connected to a top of the reduction box; and an air cylinder is fixedly connected to a side of a top of the mounting plate.
2. The indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture of claim 1, wherein an air pump box is fixedly connected to a middle of the top of the mounting plate, and an air pump motor is fixedly connected to another side of the top of the mounting plate, in which an output shaft of the air pump motor is drivingly connected to an air pump inside the air pump box, and the air cylinder is connected with the telescopic rod and the air pump through air pipes, respectively.
BL-5333 LU500913
3. The indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture of claim 1, wherein an output shaft of the moving motor is key connected with a driving pulley, and the driving pulley is connected with a driven pulley through a belt drive, in which a middle of the driven pulley is key connected with an input shaft of the reduction box, and an output shaft of the reduction box is drivingly connected with the rotating shaft of the testing wheel.
4. The indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture of claim 1, wherein there are two telescopic rods symmetrically arranged at the bottom of the mounting plate, and a triangular plate is provided at each of both sides of the pressure rod, in which a bottom of the triangular plate is fixedly connected to a top of the lifting plate.
5. The indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture of claim 1, wherein a limiting plate is fixedly connected at an inner bottom wall of the groove, and a rectangular groove matched with the limiting plate is opened at a bottom of the replacement frame.
BL-5333 LU500913
6. The indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture of claim 1, wherein the bottom of the top plate is fixedly connected to the top of the base through a supporting pillar, and there are four supporting pillars distributed in a rectangular array.
LU500913A 2021-11-25 2021-11-25 Indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture LU500913B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LU500913A LU500913B1 (en) 2021-11-25 2021-11-25 Indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU500913A LU500913B1 (en) 2021-11-25 2021-11-25 Indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture

Publications (1)

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LU500913B1 true LU500913B1 (en) 2022-05-25

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LU500913A LU500913B1 (en) 2021-11-25 2021-11-25 Indoor test piece forming and testing device for anti-rutting ability of micro-surface mixture

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Effective date: 20220525