CN107884556A - Foamed asphalt expansion ratio measurement apparatus and measuring method are used in one kind experiment - Google Patents
Foamed asphalt expansion ratio measurement apparatus and measuring method are used in one kind experiment Download PDFInfo
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- CN107884556A CN107884556A CN201711387960.8A CN201711387960A CN107884556A CN 107884556 A CN107884556 A CN 107884556A CN 201711387960 A CN201711387960 A CN 201711387960A CN 107884556 A CN107884556 A CN 107884556A
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- cylinder body
- foamed asphalt
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- expansion ratio
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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
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a kind of experiment foamed asphalt expansion ratio measurement apparatus and measuring method, including motor, agitating device, gray iron and angular contact ball bearing；Cylinder body is the cylinder body of upper end open, and cylinder cap is fixedly installed in the opening on cylinder body top；Hole is offered on cylinder cap, angular contact ball bearing is provided with hole, agitating device is arranged in cylinder body through hole；Angular contact ball bearing is set on agitating device；Agitating device and motor connection above cylinder cap.The present invention is by the way that the measuring method of expansion ratio is improved.This method is simple, easy to operate, accuracy is high, and can change experiment condition according to the difference of foamed asphalt research contents, and the further investigation to foamed asphalt is significant.
Description
Technical field
The invention belongs to road engineering technical field, more particularly to a kind of experiment with foamed asphalt expansion ratio measurement apparatus and
Measuring method.
Background technology
Plate form rubber influences the advantages that small on ageing of asphalt, more because production temperature is low, energy consumption is small, discharge is few
To be applied to field of road construction more.Expansion ratio and half-life period are the important indicators for evaluating foamed asphalt foaming effect,
The ratio between volume when the maximum volume that expansion ratio refers to reach during asphalt foaming expansion is wholly absent with foam.Due to foamed asphalt
Bubble burst is than very fast, and foam will be wholly absent typically in several seconds or more than ten seconds, therefore expansion ratio measurement is more difficult.
At present, the measurement of expansion ratio is using observation or the method observed using auxiliary equipments such as video recordings.It is this
Method is directly simple, but accuracy is poor.Foamed asphalt foaming effect, production technology etc. are furtherd investigate, this measurement
The data that method is drawn are clearly insecure.
The content of the invention
It is an object of the invention to provide a kind of experiment foamed asphalt expansion ratio measurement apparatus and measuring method, to solve
Above mentioned problem.
To achieve the above object, the present invention uses following technical scheme：
Foamed asphalt expansion ratio measurement apparatus, including motor, agitating device, gray iron and angular contact are used in one kind experiment
Ball bearing；Cylinder body is the cylinder body of upper end open, and cylinder cap is fixedly installed in the opening on cylinder body top；Hole, hole are offered on cylinder cap
Angular contact ball bearing is inside provided with, agitating device is arranged in cylinder body through hole；Angular contact ball bearing is set on agitating device；
Agitating device and motor connection.
Further, jewel is provided between angular contact ball bearing and cylinder cap；Axle is provided with above angular contact ball bearing
Hold lid, bearing cap and jewel mode connects for screw；Angular contact ball bearing one end is positioned by the shaft shoulder, and the other end is fixed by cylinder cap.
Further, agitating device includes agitating shaft and stirring vane；Angular contact ball bearing is set on agitating shaft, cylinder body
Stirring vane is fixedly installed on internal agitating shaft；Agitating shaft passes through bearing cap and motor connection；Bearing cap and agitating shaft it
Between sealed using felt collar oil sealing；Non-contacting seal is used between agitating shaft and the shaft shoulder.
Further, reduction box is provided with the output shaft of motor, is connected between reduction box and agitating shaft by shaft coupling；
Frequency converter is provided with motor.
Further, on the same axis, cylinder cap is half opening formula cylinder cap for the hole on cylinder cap and the center of cylinder body；Cylinder cap leads to
Bolt is crossed to be fixedly connected with cylinder body.
Further, the lower surface of cylinder cap is provided with liquid level sensor；Liquid level sensor is infrared level sensors.
Further, it is a kind of to be based on experiment foamed asphalt expansion ratio measurement apparatus and measuring method, the experiment bubble
Foam pitch expansion ratio measurement apparatus includes motor, agitating device, gray iron and angular contact ball bearing；Cylinder body is upper end open
Cylinder body, cylinder cap is fixedly installed in the opening on cylinder body top；Hole is offered on cylinder cap, angular contact ball bearing is provided with hole,
It is arranged on through hole in cylinder body；Angular contact ball bearing is set on agitating device；Agitating device and motor connection；
Agitating device includes agitating shaft and stirring vane；Angular contact ball bearing is set on agitating shaft, and cylinder interior is stirred
Mix and stirring vane is fixedly installed on axle；Agitating shaft passes through bearing cap and motor connection；Felt is used between bearing cap and agitating shaft
Circle oil sealing is sealed；Non-contacting seal is used between agitating shaft and the shaft shoulder；
Reduction box is provided with the output shaft of motor, is connected between reduction box and agitating shaft by shaft coupling；Set on motor
It is equipped with frequency converter；
The lower surface of cylinder cap is provided with liquid level sensor；
It is described to be based on experiment foamed asphalt expansion ratio measurement apparatus and measuring method, comprise the following steps：
Measurement is without the foamed asphalt expansion ratio under stirring action：
1) cylinder cap is removed, liquid level sensor is arranged on above the madial wall of cylinder body；
2) the good foamed asphalt of firm mixing is poured into cylinder body immediately, it is high to be no more than cylinder body for the height of foamed asphalt in cylinder body
Degree/；
3) after liquid level stabilizing, now, liquid level sensor measures a liquid level a；
4) foam is constantly vanished, and foamed asphalt volume constantly reduces, and during the t seconds, liquid level sensor measures a liquid level
b；
5) by calculating a:B value, expansion ratio of the foamed asphalt in t can be drawn；
Measurement has the foamed asphalt expansion ratio under stirring action；
1) liquid level sensor is connected；
2) after equipment operation is stable, the good foamed asphalt of firm mixing is poured into cylinder body, the height of cylinder body foamed asphalt
No more than the 2/3 of height of cylinder；
3) after liquid level stabilizing, now, liquid level sensor measures a liquid level a；
4) start motor, the rotation of motor driven agitating device, adjusted by frequency converter to test frequency, and stir the t seconds；
5) motor power is disconnected, after liquid level stabilizing, measures a liquid level b；
6) by calculating a:B value, the expansion ratio at draw foamed asphalt t moment second under stirring.
Compared with prior art, the present invention has following technique effect：
The cylinder cap of the present invention is semi-enclosed, when adding foamed asphalt, never can be directly added into cylinder body, structure by opening edge
Simply, it is easily operated.The cylinder cap of the present invention is detachable, is easy to the foamed asphalt expansion according to whether under measuring stirring action
Than removing or covering cylinder cap.
The present invention is by the way that the measuring method of expansion ratio is improved.This method is simple, easy to operate, accuracy is high, and
And experiment condition can be changed according to the difference of foamed asphalt research contents, the further investigation to foamed asphalt has great meaning
Justice.
Frequency converter is housed on motor of the present invention, mixing speed can be adjusted according to requirement of experiment.
Brief description of the drawings
Fig. 1 is the overall structure figure of the present invention；
Fig. 2 is cylinder cap end face structure figure.
1 motor；2 shaft couplings；3 felt-ring seals；4 bearing caps；5 angular contact ball bearings；6 jewels；7 cylinder caps；9 level sensings
Device；10 cylinder bodies；11 agitating shafts；12 stirring vanes；15 frequency converters.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described：
Fig. 1 and Fig. 2 are referred to, foamed asphalt expansion ratio measurement apparatus, including motor 1, agitating device, cylinder are used in one kind experiment
Body 10, cylinder cap 7 and angular contact ball bearing 5；Cylinder body 10 is the cylinder body of upper end open, and cylinder cap 7 is fixedly installed on the top of cylinder body 10
In opening；Hole is offered on cylinder cap 7, angular contact ball bearing 5 is provided with hole, agitating device is arranged in cylinder body 10 through hole；
Angular contact ball bearing 5 is set on agitating device；Agitating device is connected with motor 1.
Jewel 6 is provided between angular contact ball bearing 5 and cylinder cap 7；The top of angular contact ball bearing 5 is provided with bearing cap 4,
Bearing cap 4 is fixedly connected with jewel 6；The shaft shoulder is provided with the cylinder cap 7 of the lower section of angular contact ball bearing 5, angular contact ball bearing 5 pushes up
On the shaft shoulder.
Agitating device includes agitating shaft 11 and stirring vane 12；Angular contact ball bearing 5 is set on agitating shaft 11, cylinder body 10
Stirring vane 12 is fixedly installed on internal agitating shaft 11；Agitating shaft 11 is connected through bearing cap 4 with motor 1；Bearing cap 4 with
Sealed between agitating shaft 11 using felt collar oil sealing 3；Non-contacting seal is used between agitating shaft 11 and the shaft shoulder.
Reduction box is provided with the output shaft of motor 1, is connected between reduction box and agitating shaft 11 by shaft coupling 2；Motor
On be provided with frequency converter 15.
On the same axis, cylinder cap 7 is half opening formula cylinder cap at the center in hole and cylinder body 10 on cylinder cap 7；Cylinder cap 7 passes through spiral shell
Bolt is fixedly connected with cylinder body 10.
The lower surface of cylinder cap 7 is provided with liquid level sensor 9；Liquid level sensor 9 is infrared level sensors.
It is described to be based on experiment foamed asphalt expansion ratio measurement apparatus and measuring method, comprise the following steps：
Measurement is without the foamed asphalt expansion ratio under stirring action：
1) cylinder cap 7 is removed, liquid level sensor 9 is arranged on above the madial wall of cylinder body 10；
2) the good foamed asphalt of firm mixing is poured into cylinder body 10 immediately, the height of foamed asphalt is no more than cylinder in cylinder body 10
The 2/3 of the height of body 10；
3) after liquid level stabilizing, now, liquid level sensor measures a liquid level a；
4) foam is constantly vanished, and foamed asphalt volume constantly reduces, and during the t seconds, liquid level sensor measures a liquid level
b；
5) by calculating a:B value, expansion ratio of the foamed asphalt in t can be drawn；
Measurement has the foamed asphalt expansion ratio under stirring action；
1) liquid level sensor is connected；
2) after equipment operation is stable, the good foamed asphalt of firm mixing is poured into cylinder body 10, the foamed asphalt of cylinder body 10
Highly it is no more than the 2/3 of the height of cylinder body 10；
3) after liquid level stabilizing, now, liquid level sensor measures a liquid level a；
4) motor 1 is started, motor 1 drives agitating device rotation, adjusted by frequency converter 15 to test frequency, and stir t
Second；
5) motor power is disconnected, after liquid level stabilizing, measures a liquid level b；
6) by calculating a:B value, the expansion ratio at draw foamed asphalt t moment second under stirring.
The present invention is divided into power drive system, agitating device, stirring cylinder body and cylinder cap.Power drive system includes motor
And reduction box system 1, frequency converter 15 and shaft coupling 2；Agitating device includes agitating shaft 11, stirring vane 12.Motor and deceleration
Case system 1 is by shaft coupling 2 by power transmission to agitating shaft 11；Frequency converter 15 is housed on motor, mixing speed can be carried out
Regulation.The other end of agitating shaft 11 is equipped with stirring vane 12, and stirring vane 12 is connected with agitating shaft 11 by hex nut.Cylinder cap
Liquid level sensor 9 is equipped with 7.Agitating shaft 11 is coordinated by angular contact ball bearing 5 and cylinder cap 7, in order to seal and fixed angles
Bearing cap 4 is stamped at contact ball bearing 5, the top of angular contact ball bearing 5, and the one end of angular contact ball bearing 5 is positioned using the shaft shoulder, the other end
Fixed by jewel 6.Bearing cap 4 is fixed on cylinder cap 7 with jewel 6 by hex screw.Bearing cap 4 and agitating shaft 11 it
Between sealed using felt collar oil sealing 3.Agitating shaft 11 is coordinated with cylinder cap 7 using gap, in order to avoid foamed asphalt flies during stirring
Fit clearance is splashed, non-contacting seal 14 is provided between agitating shaft 11 and cylinder cap 7.Cylinder cap 7 is peripherally disposed 4
Screwed hole, it is connected to by hex screw on stirring cylinder body 10.
Claims (7)
1. foamed asphalt expansion ratio measurement apparatus is used in one kind experiment, it is characterised in that including motor (1), agitating device, cylinder body
(10), cylinder cap (7) and angular contact ball bearing (5)；Cylinder body (10) is the cylinder body of upper end open, and cylinder cap (7) is fixedly installed on cylinder body
(10) in the opening on top；Hole is offered on cylinder cap (7), angular contact ball bearing (5) is provided with hole, agitating device is set through hole
Put in cylinder body (10)；Angular contact ball bearing (5) is set on agitating device；Agitating device is connected with motor (1).
2. foamed asphalt expansion ratio measurement apparatus is used in a kind of experiment according to claim 1, it is characterised in that angular contact ball
Jewel (6) is provided between bearing (5) and cylinder cap (7)；Bearing cap (4), bearing cap are provided with above angular contact ball bearing (5)
(4) it is fixedly connected with jewel (6)；Angular contact ball bearing (5) one end is positioned by the shaft shoulder, and the other end is fixed by cylinder cap (7).
3. foamed asphalt expansion ratio measurement apparatus is used in a kind of experiment according to claim 2, it is characterised in that agitating device
Including agitating shaft (11) and stirring vane (12)；Angular contact ball bearing (5) is set on agitating shaft (11), cylinder body (10) inside
Stirring vane (12) is fixedly installed on agitating shaft (11)；Agitating shaft (11) is connected through bearing cap (4) with motor (1)；Bearing
Sealed between lid (4) and agitating shaft (11) using felt collar oil sealing (3)；Agitating shaft (11) is between the shaft shoulder using contactless
Sealing.
4. foamed asphalt expansion ratio measurement apparatus is used in a kind of experiment according to claim 2, it is characterised in that motor (1)
Output shaft on be provided with reduction box, be connected between reduction box and agitating shaft (11) by shaft coupling (2)；Change is provided with motor
Frequency device (15).
5. foamed asphalt expansion ratio measurement apparatus is used in a kind of experiment according to claim 1, it is characterised in that cylinder cap (7)
On hole and cylinder body (10) center on the same axis, cylinder cap (7) is half opening formula cylinder cap；Cylinder cap (7) passes through bolt and cylinder
Body (10) is fixedly connected.
6. foamed asphalt expansion ratio measurement apparatus is used in a kind of experiment according to claim 1, it is characterised in that cylinder cap (7)
Lower surface be provided with liquid level sensor (9)；Liquid level sensor (9) is infrared level sensors.
7. one kind is based on experiment foamed asphalt expansion ratio measurement apparatus and measuring method, it is characterised in that the experiment bubble
Foam pitch expansion ratio measurement apparatus includes motor (1), agitating device, cylinder body (10), cylinder cap (7) and angular contact ball bearing (5)；Cylinder
Body (10) is the cylinder body of upper end open, and cylinder cap (7) is fixedly installed in the opening on cylinder body (10) top；Cylinder cap offers on (7)
Hole, angular contact ball bearing (5) is provided with hole, and agitating device is arranged in cylinder body (10) through hole；Angular contact ball bearing (5) covers
It is located on agitating device；Agitating device is connected with motor (1)；
Agitating device includes agitating shaft (11) and stirring vane (12)；Angular contact ball bearing (5) is set on agitating shaft (11), cylinder
Stirring vane (12) is fixedly installed on the internal agitating shaft (11) of body (10)；Agitating shaft (11) passes through bearing cap (4) and motor
(1) connect；Sealed between bearing cap (4) and agitating shaft (11) using felt collar oil sealing (3)；Agitating shaft (11) is between the shaft shoulder
Using non-contacting seal；
Reduction box is provided with the output shaft of motor (1), is connected between reduction box and agitating shaft (11) by shaft coupling (2)；Electricity
Frequency converter (15) is provided with machine；
The lower surface of cylinder cap (7) is provided with liquid level sensor (9)；
It is described to be based on experiment foamed asphalt expansion ratio measurement apparatus and measuring method, comprise the following steps：
Measurement is without the foamed asphalt expansion ratio under stirring action：
1) cylinder cap (7) is removed, liquid level sensor (9) is arranged on above the madial wall of cylinder body (10)；
2) the good foamed asphalt of firm mixing is poured into cylinder body (10) immediately, the height of cylinder body (10) interior foamed asphalt is no more than cylinder
The 2/3 of body (10) height；
3) after liquid level stabilizing, now, liquid level sensor measures a liquid level a；
4) foam is constantly vanished, and foamed asphalt volume constantly reduces, and during the t seconds, liquid level sensor measures a liquid level b；
5) by calculating a:B value, expansion ratio of the foamed asphalt in t can be drawn；
Measurement has the foamed asphalt expansion ratio under stirring action；
1) liquid level sensor is connected；
2) after equipment operation is stable, the good foamed asphalt of firm mixing is poured into cylinder body (10), cylinder body (10) foamed asphalt
Highly it is no more than the 2/3 of cylinder body (10) height；
3) after liquid level stabilizing, now, liquid level sensor measures a liquid level a；
4) motor (1) is started, motor (1) drives agitating device rotation, adjusted by frequency converter (15) to test frequency, and stir
The t seconds；
5) motor power is disconnected, after liquid level stabilizing, measures a liquid level b；
6) by calculating a:B value, the expansion ratio at draw foamed asphalt t moment second under stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711387960.8A CN107884556A (en) | 2017-12-20 | 2017-12-20 | Foamed asphalt expansion ratio measurement apparatus and measuring method are used in one kind experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711387960.8A CN107884556A (en) | 2017-12-20 | 2017-12-20 | Foamed asphalt expansion ratio measurement apparatus and measuring method are used in one kind experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107884556A true CN107884556A (en) | 2018-04-06 |
Family
ID=61771064
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711387960.8A Pending CN107884556A (en) | 2017-12-20 | 2017-12-20 | Foamed asphalt expansion ratio measurement apparatus and measuring method are used in one kind experiment |
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| CN (1) | CN107884556A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539312A (en) * | 2012-01-13 | 2012-07-04 | 交通运输部公路科学研究所 | Method and device for testing asphalt forming characteristics |
| CN103344526A (en) * | 2013-06-28 | 2013-10-09 | 长安大学 | Tester and testing method for workability index of bituminous mixture |
| CN204891632U (en) * | 2015-08-04 | 2015-12-23 | 宁波镇海弘润磁材科技有限公司 | Pitch mixing arrangement for building |
| CN106338595A (en) * | 2016-08-30 | 2017-01-18 | 徐工集团工程机械有限公司 | Asphalt foaming parameter measurement method and system |
| CN206671560U (en) * | 2017-05-04 | 2017-11-24 | 贵州省公路局 | A kind of asphalt foaming expansion rate and the laser detecting apparatus of half-life period |
| CN207851073U (en) * | 2017-12-20 | 2018-09-11 | 中交西安筑路机械有限公司 | A kind of experiment foamed asphalt expansion ratio measuring device |
-
2017
- 2017-12-20 CN CN201711387960.8A patent/CN107884556A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539312A (en) * | 2012-01-13 | 2012-07-04 | 交通运输部公路科学研究所 | Method and device for testing asphalt forming characteristics |
| CN103344526A (en) * | 2013-06-28 | 2013-10-09 | 长安大学 | Tester and testing method for workability index of bituminous mixture |
| CN204891632U (en) * | 2015-08-04 | 2015-12-23 | 宁波镇海弘润磁材科技有限公司 | Pitch mixing arrangement for building |
| CN106338595A (en) * | 2016-08-30 | 2017-01-18 | 徐工集团工程机械有限公司 | Asphalt foaming parameter measurement method and system |
| CN206671560U (en) * | 2017-05-04 | 2017-11-24 | 贵州省公路局 | A kind of asphalt foaming expansion rate and the laser detecting apparatus of half-life period |
| CN207851073U (en) * | 2017-12-20 | 2018-09-11 | 中交西安筑路机械有限公司 | A kind of experiment foamed asphalt expansion ratio measuring device |
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