CN201583450U - Asphalt mixture cracking resistance tester - Google Patents
Asphalt mixture cracking resistance tester Download PDFInfo
- Publication number
- CN201583450U CN201583450U CN2009202548903U CN200920254890U CN201583450U CN 201583450 U CN201583450 U CN 201583450U CN 2009202548903 U CN2009202548903 U CN 2009202548903U CN 200920254890 U CN200920254890 U CN 200920254890U CN 201583450 U CN201583450 U CN 201583450U
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- China
- Prior art keywords
- push
- cracking resistance
- environmental cabinet
- pull
- rotation shaft
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Abstract
An asphalt mixture cracking resistance tester is used for resolving the test and detection problem of asphalt mixture and composed of an environment chamber, a fixed support seat, a bonded table plate, a slide plate, a slide plate displacement loading mechanism, a spoke type sensor, a rotary link shaft and a servo motor, wherein a fixed support seat is mounted inside the environment chamber, the bonded table plate is mounted on the fixed support seat, the bonded table plate is engaged with the slide plate in a contact connection manner, the slide plate displacement loading mechanism is connected to the bottom portion of the slide plate, the slide plate displacement loading mechanism is connected with the servo motor via the rotary link shaft, the spoke type sensor is connected onto a link shaft disc of the rotary link shaft, the rotary link shaft equipped the bearing are embedded on a lateral body support seat of the environment chamber, and the servo motor is connected to the outside of a lateral body of the environment chamber. The asphalt mixture cracking resistance tester is simple in structure and convenient in use, and is applicable to cracking resistance test of various asphalt mixtures.
Description
Technical field
The utility model relates to a kind of highway pavement material test instrument, especially for the instrument that detects pitch mixed material cracking resistance.
Background technology
Bituminous pavement in the highway construction mainly adopts the asphalt making in basic unit, and compacting forms through the street roller tool.Asphalt is to mix and stir the road-making material that forms by the coarse aggregate of different-grain diameter, fine aggregate, filler by certain grating and asphaltic binder.The grating of pitch kind, bitumen content and various mineral aggregates in the asphalt all can have influence on the cracking resistance of asphalt, especially bituminous pavement is a kind of than the common damage form by semi-rigid type base influence generation reflection crack, it has a strong impact on the serviceable life of road, therefore before building the road surface on a large scale, just carry out the cracking property test and testing and the check of asphalt, determine the optimal material kind and the proportioning of asphalt, to reach best cracking resistance, be very important.But, in known technology, the cracking resistance pilot project has only been proposed in highway construction at present, still there are not ripe test standard and test apparatus.Reach the test and the check purpose of asphalt, utilize existing instrument and equipment such as Reciprocatory pressure testing machine, carry out displacement (strain) and load (stress) is tested the detection pitch mixed material cracking resistance, the composition structure of its bulk testing detecting instrument and operation are just quite complicated, and test sense environmental conditions instability, it is bigger influenced by human factor, data accuracy is poor, brings inconvenience to use.
The utility model content
The utility model is used to overcome the deficiencies in the prior art, provides a kind of simple in structure, and the test testing environment is stable, data are accurate, automaticity is high, be exclusively used in the test detecting instrument of pitch mixed material cracking resistance.
The technical scheme in the invention for solving the above technical problem is:
A kind of pitch mixed material cracking resistance tester, it is by environmental cabinet, hold-down support, the bonding platen, sliding panel, the sledge displacement load maintainer, the radial sensor, the rotation shaft coupling, servomotor is formed, in the case of environmental cabinet, be equiped with hold-down support, the bonding platen is housed on the hold-down support, the bonding platen is the company's of touching sliding panel movingly, sliding panel bottom load sledge displacement load maintainer, the sledge displacement load maintainer connects servomotor by the rotation shaft coupling, and on the tray joint shaft of rotation shaft coupling, be connected with the radial sensor, on the rotation shaft coupling lateral body bearing of bearing insert in environmental cabinet is housed, the servomotor load is in environmental cabinet lateral body outside.
Above-mentioned pitch mixed material cracking resistance tester, described sledge displacement load maintainer is to be connected to form by push-pull shaft and push-and-pull seat, push-pull shaft is the ball screw axle, the push-and-pull seat is shaped on screw and is meshing with each other into the screw mandrel screw with the ball screw of push-pull shaft and is connected, the push-and-pull seat is connected in the sliding panel bottom, and push-pull shaft connects the rotation shaft coupling and has the supporting base supporting that is contained on the environmental cabinet inner bottom plating to connect; Or adopting push-pull shaft is worm screw, and the push-and-pull seat is shaped on turbine and is meshing with each other into turbine and worm with the worm screw of push-pull shaft and is connected.
Above-mentioned pitch mixed material cracking resistance tester, described servomotor is the speed-regulating type servomotor, or is associated with the servomotor of reductor.
Above-mentioned pitch mixed material cracking resistance tester, described environmental cabinet be can regulating and controlling temperature can closed thermal environment case, the temperature controlling range of environmental cabinet is-25 ℃～60 ℃.
During the utility model test, connect controller at radial signal of sensor line, controller connects servomotor and microcomputer respectively, and design the project indicator that test detects, produce reflection crack process by its environmental cabinet simulation bituminous pavement by basic unit's influence with regard to available test instrument, with the pre-set environment temperature of environmental cabinet, in environmental cabinet, put into test specimen, by designing requirement operational computations machine, computing machine is given controller according to the instruction issue an order, controller control servomotor drives the sledge displacement load maintainer test specimen is added unloading, pressure in the radial sensor acquisition process of the test, shift value passes the signal in the controller, controller connect computing machine with data processing after, controller is issued in instruction be transferred to servomotor again, its operation control method adopts displacement (strain) control and load (stress) to control two kinds, carries out pitch mixed material cracking resistance test and detection.Utilize this test instrument to detect the cracking resistance index of asphalt by test, its cracking resistance is carried out rational evaluation, material mix proportion is carried out preferably, guiding construction, improve asphalt making quality, reduce asphalt pavement crack quantity,, improve the road service level to prolong road serviceable life.
Because technique scheme has been adopted in the utility model design, existing pitch mixed material cracking resistance tester device one-piece construction and the complicated problem of operation have been solved effectively.Show through testing result on trial for several times, it compared with prior art, have simple in structure, the test sense environmental conditions is stable, has reduced artificial factor, and instrument performance is stable, test that to detect data accurate, the automaticity height, advantage such as easy to use is applicable to that the various pitch mixed material cracking resistances tests of constructing highway detect.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model structural principle synoptic diagram.
Each label is in the accompanying drawing: 1 environmental cabinet; 2 bonding platens; 3 hold-down supports; 4 sliding panels; 5 push-pull shafts; 6 push-and-pull seats; 7 supporting bases; 8 radial sensors; 9 rotation shaft couplings; 10 lateral body bearings; 11 servomotors; 12 test specimens.
Embodiment
Embodiment as shown in Figure 1, the utility model comprises environmental cabinet 1, hold-down support 3, bonding platen 2, sliding panel 4, the sledge displacement load maintainer, radial sensor 8, rotation shaft coupling 9, servomotor 11, be equiped with hold-down support 3 in the case of environmental cabinet 1, bonding platen 2 is housed on the hold-down support 3, bonding platen 2 is the company's of touching sliding panel 4 movingly, sliding panel 4 bottom load sledge displacement load maintainers, the sledge displacement load maintainer connects servomotor 11 by rotation shaft coupling 9, and on the tray joint shaft of rotation shaft coupling 9, be connected with radial sensor 8, on the rotation shaft coupling 9 the lateral body bearing 10 of bearing insert in environmental cabinet 1 is housed, servomotor 11 loads are in environmental cabinet 1 lateral body outside, the output signal line of radial sensor 8 connects controller, controller connects servomotor and computing machine respectively, the sledge displacement load maintainer is to be connected to form by push-pull shaft 5 and push-and-pull seat 6, push-pull shaft 5 is the ball screw axle, push-and-pull seat 6 is shaped on screw and is meshing with each other with the ball screw of push-pull shaft 5 and is connected, push-and-pull seat 6 is connected in sliding panel 4 bottoms, push-pull shaft 5 connects the rotation shaft coupling and has supporting base 7 supportings that are contained on environmental cabinet 1 inner bottom plating to connect, and the temperature controlling range of environmental cabinet is-25 ℃～60 ℃.
Claims (3)
1. pitch mixed material cracking resistance tester, it is characterized in that, it is by environmental cabinet, hold-down support (3), bonding platen (2), sliding panel (4), the sledge displacement load maintainer, radial sensor (8), rotation shaft coupling (9), servomotor (11) is formed, environmental cabinet be regulating and controlling temperature can closed thermal environment case (1), be equiped with hold-down support (3) in the case of environmental cabinet (1), bonding platen (2) is housed on the hold-down support (3), bonding platen (2) cooperates the company's of touching sliding panel (4), sliding panel (4) bottom load sledge displacement load maintainer, the sledge displacement load maintainer connects servomotor (11) by rotation shaft coupling (9), and on the tray joint shaft of rotation shaft coupling (9), be connected with radial sensor (8), the bearing insert is housed on the lateral body bearing (10) of environmental cabinet (1) on the rotation shaft coupling (9), servomotor (11) load is in the lateral body outside of environmental cabinet (1).
2. according to the described pitch mixed material cracking resistance tester of claim 1, it is characterized in that, the sledge displacement load maintainer is to be connected to form by push-pull shaft (5) and push-and-pull seat (6), push-pull shaft (5) is the ball screw axle, push-and-pull seat (6) is shaped on screw and is meshing with each other with the ball screw of push-pull shaft (5) and is connected, push-and-pull seat (6) is connected in sliding panel (4) bottom, and push-pull shaft (5) connects the rotation shaft coupling and has supporting base (7) supporting that is contained on environmental cabinet (1) inner bottom plating to connect.
3. pitch mixed material cracking resistance tester according to claim 1 is characterized in that, the temperature controlling range of environmental cabinet (1) is-25 ℃～60 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202548903U CN201583450U (en) | 2009-12-09 | 2009-12-09 | Asphalt mixture cracking resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202548903U CN201583450U (en) | 2009-12-09 | 2009-12-09 | Asphalt mixture cracking resistance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201583450U true CN201583450U (en) | 2010-09-15 |
Family
ID=42725453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202548903U Expired - Lifetime CN201583450U (en) | 2009-12-09 | 2009-12-09 | Asphalt mixture cracking resistance tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201583450U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183412A (en) * | 2011-02-18 | 2011-09-14 | 浙江大学 | Tension-shear coupling characteristic tester of asphalt concrete material |
| CN104458398B (en) * | 2014-11-25 | 2017-01-11 | 中交第二公路勘察设计研究院有限公司 | Semi-rigid base asphalt pavement reflection crack testing device |
-
2009
- 2009-12-09 CN CN2009202548903U patent/CN201583450U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183412A (en) * | 2011-02-18 | 2011-09-14 | 浙江大学 | Tension-shear coupling characteristic tester of asphalt concrete material |
| CN102183412B (en) * | 2011-02-18 | 2012-12-12 | 浙江大学 | Tension-shear coupling characteristic tester of asphalt concrete material |
| CN104458398B (en) * | 2014-11-25 | 2017-01-11 | 中交第二公路勘察设计研究院有限公司 | Semi-rigid base asphalt pavement reflection crack testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100915 Effective date of abandoning: 20091209 |