CN102183421B

CN102183421B - Asphalt ductility tester

Info

Publication number: CN102183421B
Application number: CN2011100588185A
Authority: CN
Inventors: 戴叙生; 戴建斌; 戴丽娟
Original assignee: CHANGSHU GAOSIDA INSTRUMENT EQUIPMENT Co Ltd
Current assignee: CHANGSHU GAOSIDA INSTRUMENT EQUIPMENT Co Ltd
Priority date: 2011-03-11
Filing date: 2011-03-11
Publication date: 2012-07-25
Anticipated expiration: 2031-03-11
Also published as: CN102183421A

Abstract

The invention relates to an asphalt ductility tester which belongs to the technical field of a road and bridge laying material test instrument. The asphalt ductility tester provided by the invention comprises a rack, a water tank arranged on the rack, a refrigerating device arranged at the bottom of the rack, heating pipes, a power transmission mechanism arranged on the rack, a screw rod arranged on the rack, a water circulation mechanism arranged on the rack, multiple test module positioning blocks and a sensor, wherein the heating pipes are laid at the bottom along the length direction of the water tank; the screw rod is connected with the power transmission mechanism and connected with one end of a moving plate; the middle part of the moving plate stretches into the water tank, and the other end of the moving plate is in slide fitting with the inner wall of the water tank; the water circulation mechanism is in fitting connection with the water tank; the multiple test module positioning blocks are arranged at one end of the water tank and positioned in the water tank; the sensor is arranged on the outer wall of one end of the water tank and connected with the test module positioning blocks; and a first test module positioning column is in expansion arrangement at the middle part of a slide plate. The asphalt ductility tester provided by the invention has the advantages that the temperature of the water in the water tank is enabled to be uniform; the unboiled water and boiled water phenomenon does not occur; the power of a motor can be reduced to reflect energy conservation; the asphalt ductility tester is beneficial to the protection of the screw rod; and the moving plate and test modules are guaranteed to be stably operated.

Description

The bitumen ductility test instrument

Technical field

The invention belongs to road and bridge laying testing of materials instrument technical field; Be specifically related to a kind of bitumen ductility test instrument; Be applied to fields such as scientific research, teaching and road and bridge construction and urban operating mechanism construction, length when being used for that the pitch sample processed by die trial is stretched to fracture with the speed of regulation under the temperature of regulation and ductility and/or the pulling force when fracture are measured

Background technology

The implication of aforesaid bitumen ductility is: with sample by 8 fonts that are molded as arabic numeral, under the temperature about 25 ℃, the length when being stretched to fracture with the speed of 5 ㎝/min! ㎝).Undoubtedly, ductility is big more, shows that the plasticity of pitch is good more, and therefore, ductility is to estimate or claim an extremely important index of evaluation pitch plasticity.

are in the building of universities and colleges, scientific research institutions and even vocational middle school is imparted knowledge to students especially the road and bridge professional teaching; And can relate to test usually about the physical index of pitch in road and bridge construction department and urban operating mechanism maintenance department etc., so that know the tensile strength of pitch.The asphalt material that tensile strength is excellent, development length is big is owing to have bigger deformation range, thereby when be used in the laying of road and bridge, square, harbour, harbour and airport etc., is difficult for the generation crack and can bears bigger load impact.

Chinese utility model patent Granted publication CN2572391Y discloses a kind of vertically-arranged pitch force ductility appearance; And CN25723939Y has recommended a kind of vertically-arranged pitch force ductility device; Though these two patent schemes can be embodied in technique effect alleged in the instructions separately, logical fraud below existing: the one, tediously long and can have the phenomenon of water to the heat time heating time of the water in the tank, because housing 1 be vertical or title cabinet-type; Well heater is arranged on the bottom of tank; When well heater heated water, the water of bottom was easy to reach the probe temperature requirement, and the water temperature on top then is difficult to guarantee the desired temperature of test; The cool water phenomenon of heat down promptly occurs going up, influence test effect; The 2nd, structure is comparatively complicated, and kinetic equation loss is big, is unfavorable for energy-conservationly, and for example two patents all adopt a pair of screw rod (patent is claimed left and right vertically-arranged screw rod), and transmission link is many, and resistance is big, and power of motor is big, is unfavorable for energy-conservation; The 3rd, driving member damages easily, because two patents all are that a pair of screw rod is arranged in the tank, contacts with water, so be unfavorable for the protection of screw rod; The 4th, the stationarity of die trial campaign is difficult to ensure that because a pair of screw rod produces amount of deflection unavoidably, the depth of parallelism each other is affected, and finally causes being connected sliding panel between a pair of screw rod and takes at the uniform velocity row that the die trial row moves and move effect and be affected.

In view of the existing deficiency of above-mentioned prior art, be necessary to improve, for this reason, the applicant has carried out lasting exploration and trial, has found the way that remedies aforementioned drawback, and the technical scheme that will introduce below produces under this background

Summary of the invention

task of the present invention be to provide a kind of help to ensure the temperature homogeneity of the water in the tank and prevent the water phenomenon and use embody desirable test effect, help dwindling use as the power of the motor of power embody energy-conservation, be of value to the water separation in drive disk assembly and the tank being used embody and prevent that screw rod from damaging and having and be good at avoiding screw rod amount of deflection to occur and use and ensure that sliding panel carries die trial and steadily goes the bitumen ductility test instrument that moves.

task of the present invention is accomplished like this, and a kind of bitumen ductility test instrument comprises: with a frame of horizontally-arranged state setting; One tank is found a place on said frame with horizontally-arranged state; One refrigerating plant is located at the bottom of frame, and the evaporation tube of this refrigerating plant is placed in the said tank, and lays along the bottom of the length direction of tank; One heating tube lays along the length direction of tank bottom, and corresponding to the top of evaporation tube; One power drive mechanism is located on the frame, and corresponding to an end of tank; One screw rod is arranged on the frame to transmission, corresponding to the outer wall of a side of the length direction of tank; And be connected with power drive mechanism; On this screw rod, be connected with an end of movable plate, the middle part of movable plate is insinuated in the tank, and the inwall cunning of the other end of movable plate and tank is joined; One is used to make the mobile water circulation mechanism of water cycle in the tank, is located on the frame, and connects with tank; Plural number piece die trial locating piece is located at an end of tank and is positioned at tank; With the sensor that the quantity of die trial locating piece equates, be located on the outer wall of an end of tank, be connected with the die trial locating piece, the middle part of described movable plate extends and first die trial reference column that position corresponding that equate with said die trial locating piece quantity.

in a concrete embodiment of the present invention, an end of described frame is equipped with a controller, and described refrigerating plant, heating tube, power drive mechanism, water circulation mechanism and sensor and controller are electrically connected.

are in another concrete embodiment of the present invention; In described tank and along the length direction of tank, be equipped with dividing plate; Described evaporation tube and heating tube are positioned at the below of dividing plate, and the middle part of described movable plate is corresponding to the top of dividing plate.

In another concrete embodiment of the present invention, described evaporation tube and heating tube all lay with the length direction of case of bending ground along the bottom of said tank , and describedly are bent into the bending of S shape or U-shaped is crooked.

are in another concrete embodiment of the present invention; Described power drive mechanism comprises motor, first, second power wheel and the driving-belt with rotating function; Motor is fixed on an end of said frame, and first power wheel is fixed on the motor shaft of motor, and an end of second power wheel and said screw rod is fixed; One end of driving-belt is nested with on first power wheel, and the other end is nested with on second driving-belt.

also have among the concrete embodiment of the present invention, and when described first power wheel and second power wheel were sprocket wheel, described driving-belt was a driving chain; When described first power wheel and second power wheel were belt pulley, described driving-belt was a driving belt.

are more of the present invention and among concrete embodiment; One end of described movable plate is equipped with a bolt and nut seat; This bolt and nut seat matches with said screw rod; The other end pivot of movable plate is provided with a roller, and this roller matches with guide rail, and guide rail is fixed on the inwall of said tank and portion on the upper side.

are in of the present invention and then concrete embodiment; Described water circulation mechanism comprises a water pump and a solenoid valve; Water pump is fixed on the frame, on this water pump, has a water pump returning pipe joint and a water pump water outlet pipe adapter, and the water pump returning pipe joint has one first backwater interface and one second backwater interface; And the water pump water outlet pipe adapter has one first water outlet interface and one second water outlet interface; Solenoid valve is fixed in position and frame corresponding to an end of water pump, and this solenoid valve has one first interface and one second interface, is equipped with a tank first interface and a tank second interface at an end of described tank; And be equipped with a tank the 3rd interface and a tank the 4th interface at the other end of tank; The described first backwater interface is connected with described tank first interface by pipeline, and the described second backwater interface is connected with described tank second interface by pipeline, and the described first water outlet interface is connected with described tank the 4th interface by pipeline; The described second water outlet interface is connected with described first interface by pipeline; Described second interface is connected with described tank the 3rd interface by pipeline, and wherein, described tank the 3rd interface is positioned at the top of described tank the 4th interface.

of the present invention again more and among concrete embodiment, have one second die trial reference column on the described die trial locating piece, this second die trial reference column is corresponding with the described first die trial reference column.

Divider has been inserted between described evaporation tube and the described heating tube in in again of the present invention and then concrete embodiment, the outer wall of described tank is coated with heat-insulation layer.

technical scheme provided by the invention because frame and tank be is horizontally disposed with; And the evaporation tube of refrigerating plant and the heating tube length direction along tank is laid; Thereby can make the coolant-temperature gage in the tank evenly and not the water phenomenon can occur, guarantee desirable test effect; Because the twin-screw that becomes in the prior art is single screw rod, thereby can dwindles the power of motor and embody energy-conservation; Owing to screw rod is located at outside the tank, therefore helps protection to screw rod; Because screw rod, therefore can guarantee movable plate to be horizontally disposed with and to match with movable plate and take the die trial even running.

Description of drawings

Fig. 1 is a concrete example structure figure of the present invention.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the structural drawing of the die trial when utilizing structure of the present invention that moulded specimen is tested.

Embodiment

can be expressly understood technical spirit of the present invention and beneficial effect more for the auditor that the makes Patent Office especially public; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not the restriction to the present invention program, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be regarded as technical scheme category of the present invention.

Embodiment:

Fig. 1 and Fig. 2 are asked for an interview in , provided a framed structure and the frame 1 that is provided with horizontally-arranged state, the end in the bottom of this frame 1 is that illustrated right-hand member is equipped with controller 10, controller 10 has operation control panel 101.One tank 2 is shelved on the top of frame 1 by horizontality; End at this tank 2 is that illustrated right-hand member is equipped with tank first interface 22 and tank second interface 23; And be that the left end of shown position state sets and is fixed with tank the 3rd interface 24 and tank the 4th interface 25 (Fig. 2 shows) at the other end of tank 2, and tank the 3rd interface 24 is positioned at the top of tank the 4th interface 25.For energy savings, avoid tank 2 to cause thermal loss because of the heat transmission, therefore the outer wall at tank 2 is coated with heat-insulation layer 26, and in order to stop thermal convection, is equipped with at the uncovered position on the top of tank 2 to be preferably lid 27 transparent and can left and right sides rubbing.

refrigerating plant 3 is installed in the bottom of frame 1; And be positioned at the other end of frame 1; Promptly be positioned at the left end (is example with the shown position state) of frame 1, the evaporation tube 31 of this refrigerating plant 3 is incorporated into the bottom of tank 2 and lays with S shape or the U-shaped bending length direction along tank 2.Refrigerating plant 3 is electrically connected with aforesaid controller 10.One heating tube 4 is placed in the bottom of tank 2, and same preferably lays with S shape or the U-shaped bending length direction along tank 2, and this heating tube 4 be an electric heating tube, and a pair of exit 41 and the aforesaid controller 10 of heating tube 4 are electrically connected.By shown in Figure 1, heating tube 4 is positioned at the top of evaporation tube 31, is separated by divider 311 between the two, in order to avoid both are in contact with one another.In tank 2, also be shelved with dividing plate 21; Aforesaid evaporation tube 31 and heating tube 4 are positioned at the below of dividing plate 21; By demarcation strip 21 vallecular cavity of tank 2 is divided into epicoele and cavity of resorption in form; The notion of alleged here form is meant between epicoele and the cavity of resorption to be not absolute isolated, but can be permeable.

The end that power drive mechanism 5 is located at frame 1 is illustrated right-hand member; This power drive mechanism 5 comprises that one has the rotating function and motor 51 that have frequency conversion function, first, second power wheel 52,53 and driving-belt 54; Motor 51 is fixed on the frame 1; Be connected with controller 10 electrical controls, first power wheel 52 is fixing with the motor shaft 511 of motor 51, and second power wheel 53 is fixed on the screw rod 6; One end of driving-belt 54 is nested with on first power wheel 52, and the other end then is nested with on second power wheel 53.Because first, second power wheel 52,53 can be a sprocket wheel simultaneously both, can be belt pulley simultaneously also, therefore when first, second power wheel 52,53 was sprocket wheel simultaneously, driving-belt 54 adopted driving chain so; And when first, second power wheel 52,53 was belt pulley simultaneously, driving-belt 54 adopted driving belt so.

aforesaid screw rod 6 through a pair of screw rod axle bed 62 transmissions be arranged on the frame 1; And outer wall corresponding to a side of the length direction of tank 2; The right-hand member of this screw rod 6 leans out screw rod axle bed 62, and aforesaid second power wheel 53 is fixed on this end.On screw rod 6, be connected with an end of movable plate 61 through bolt and nut seat 613; The middle part of movable plate 61 is insinuated in the tank 2; And top corresponding to aforesaid dividing plate 21; The other end of movable plate 61 is equipped with a roller 612, and roller 612 matches with guide rail 6121, and guide rail 6121 is fixed on the top of the inwall of tank 2.By shown in Figure 1, movable plate 61 takes the shape of the letter U and constitutes quantity in the part of tank 2 is three the first die trial reference column 611.

are equipped with three die trial locating pieces 8 at the inwall that an end inwall of tank 2 promptly illustrates right-hand member; It is corresponding with the aforesaid first die trial reference column 611 to have one second die trial reference column, 81, the second die trial reference columns 81 on each die trial locating piece 8.By shown in Figure 1, each die trial locating piece 8 places on the locating piece post 82, and locating piece post 82 is stretched over outside the tank 2, supplies to be connected with sensor 9, and sensor 9 is electrically connected by circuit and controller 10.

Fig. 1 and Fig. 2 are please still seen in ; The water circulation mechanism 7 that the present invention program provides preferred but not structure that be limited to is following: comprise a water pump 71 and a solenoid valve 82; Water pump 8 is installed on the frame 1, and this water pump 81 has a water pump returning pipe joint 711 and a water pump water outlet pipe adapter 712, and water pump returning pipe joint 711 has the first backwater interface 7111 and the second backwater interface 7112; And water pump water outlet interface tube 712 has the first water outlet interface 7121 and the second water outlet interface 7122; Solenoid valve 72 with first interface 721 and second interface 722 is electrically connected with aforesaid controller 10, and is fixed on the frame 1, is positioned at an end of water pump 71.The first backwater interface 7111 is connected with aforesaid tank first interface 22 through pipeline; The second backwater interface 7112 is connected with aforesaid tank second interface 23 through pipeline; The first water outlet interface 7121 is connected with aforesaid tank the 4th interface 25 by pipeline; The second water outlet interface 7122 is connected with first interface 721 by pipeline, and second interface 722 of solenoid valve 72 is connected with tank the 3rd interface 24 by pipeline.Before getting into ductility test; Water in the tank 2 by 21,22,23,24 circulations of tank first, second, third, fourth interface, forms Rapid Cycle simultaneously, and after getting into ductility test; Promptly be in the process of test; Stop the circulation of water between second interface 722 and tank the 3rd interface 24, only the first water outlet interface 7121 forms water cycle with tank the 4th interface 25, so can avoid influencing test effect because of the circulating of water in the tank 2.That is to say that when ductility test, the water on the top in the tank 2 does not circulate, and the water of bottom circulates still.

Application examples:

are asked for an interview Fig. 3 and are continued to combine Fig. 1 and Fig. 2; The applicant describes principle of work of the present invention; In Fig. 3, provided a die trial 20; This die trial 20 203 constitutes by the first mould lobe 201, the second mould lobe 202 with first, second mould lobe 201, inserting between 202, and first, second mould lobe 201,201 and the common die cavity 204 that forms 8 fonts of 203 threes that insert are poured into pitch to be measured in the die cavity 204; Then the first mould lobe 201 is placed on the first die trial reference column 611 (Fig. 1 shows) through first connecting hole 2011 on it, the second mould lobe 202 is placed on the second die trial reference column 81 through second connecting hole 2021 on it.In tank 2, introduce the water of test usefulness through the water inlet interface 29a on the tank 2; Through operation to the corresponding button on the control operation panel 101 of controller 10; Connect the power supply of heating tube 4, heat, start water circulation mechanism 7 simultaneously by the water in 4 pairs of tanks of heating tube 2; Water cycle in the tank 2 is flowed, so that temperature is even.Die trial 20 has three groups under normal conditions, promptly at each three first, second die trial reference column 611 that corresponds to each other, evenly between 81 be connected with a die trial 20.Then drive motor 51 work of power drive mechanism 5, motor shaft 511 drives first power wheel 52 by motor 51 drives second power wheel 53 through driving-belt 54; Because second power wheel 53 is fixed on the screw rod 6, because screw rod 6 is arranged on the frame 1 through a pair of screw rod axle bed 62 rotationally, and be positioned at outside the side outer wall of length direction of tank 2 again; Also since the movable plate 61 with first die trial reference column 611 match with screw rod 6 through bolt and nut seat 613, therefore, when driving screw rods 6 by second power wheel 53 and rotate; Movable plate 61 just moves towards the direction that deviates from die trial locating piece 8 through the rotation of screw rod 6, in this process, is stretched at first, second mould lobe 201, pitch between 202; Away from die trial locating piece 8, pitch is elongated and attenuates movable plate 61 more, until fracture; In case during fracture; Then, give controller 10 by sensor 9 with signal feedback, thereby obtain corresponding data by sensor 9 perception on the locating piece post 82 that is connected in die trial locating piece 8.

are in the time will doing the ductility test under the low temperature to pitch; Then heating tube 4 quits work, and drives refrigerating plant 3, by the refrigeration of the water in 31 pairs of tanks of evaporation tube 2; After reaching design temperature; Made the water temperature in the tank 2 maintain the required temperature of test by the control of controller 10, for example when the temperature in the tank 2 rose, then refrigerating plant 3 was worked once again.

preferred scheme also can respectively be installed a travel switch 28 that is electrically connected with controller 10 at the two ends of a side of tank 2, when movable plate 61 touches travel switch 28, is then sent to instruct by controller 10 motor 51 is quit work.Again, for the ease of at dead status with the water emptying in the tank 2, therefore a drainage interface 29b is set in the bottom of tank 2

Claims

1. a bitumen ductility test instrument is characterized in that comprising: with a frame (1) of horizontally-arranged state setting; One tank (2) is found a place on said frame (1) with horizontally-arranged state; One refrigerating plant (3) is located at the bottom of frame (1), and the evaporation tube (31) of this refrigerating plant (3) is placed in the said tank (2), and lays along the bottom of the length direction of tank (2); One heating tube (4) lays along the length direction of tank (2) bottom, and corresponding to the top of evaporation tube (31); One power drive mechanism (5) is located on the frame (1), and corresponding to an end of tank (2); One screw rod (6); Be arranged on to transmission on the frame (1); Corresponding to the outer wall of a side of the length direction of tank (2), and be connected, on this screw rod (6), be connected with an end of movable plate (61) with power drive mechanism (5); The middle part of movable plate (61) is insinuated in the tank (2), and the inwall cunning of the other end of movable plate (61) and tank (2) is joined; One is used to make the mobile water circulation mechanism (7) of water cycle in the tank (2), is located on the frame (1), and connects with tank (2); Plural number piece die trial locating piece (8) is located at an end of tank (2) and is positioned at tank (2); The sensor (9) that equates with the quantity of die trial locating piece (8); Be located on the outer wall of an end of tank (2); Be connected with die trial locating piece (8), the middle part of described movable plate (61) extends and first die trial reference column (611) that position corresponding that equate with said die trial locating piece (8) quantity.

2. bitumen ductility test instrument according to claim 1; An end that it is characterized in that described frame (1) is equipped with a controller (10), and described refrigerating plant (3), heating tube (4), power drive mechanism (5), water circulation mechanism (7) and sensor (9) are electrically connected with controller (10).

3. bitumen ductility test instrument according to claim 1; It is characterized in that in described tank (2) and be equipped with dividing plate (21) along the length direction of tank (2); Described evaporation tube (31) and heating tube (4) are positioned at the below of dividing plate (21), and the middle part of described movable plate (61) is corresponding to the top of dividing plate (21).

4. bitumen ductility test instrument according to claim 1 is characterized in that described evaporation tube (31) and heating tube (4) all lay with the length direction of bottom of case of bending ground along said tank (2), and describedly is bent into the bending of S shape or U-shaped is crooked.

5. bitumen ductility test instrument according to claim 1; It is characterized in that described power drive mechanism (5) comprises motor (51), first, second power wheel (52,53) and the driving-belt (54) with rotating function; Motor (51) is fixed on an end of said frame (1); First power wheel (52) is fixed on the motor shaft (511) of motor (51); Second power wheel (53) is fixed with an end of said screw rod (6), and an end of driving-belt (54) is nested with on first power wheel (52), and the other end is nested with on second driving-belt (53).

6. bitumen ductility test instrument according to claim 5 is characterized in that described driving-belt (54) is a driving chain when described first power wheel (52) and second power wheel (53) during for sprocket wheel; When described first power wheel (52) and second power wheel (53) were belt pulley, described driving-belt was a driving belt.

7. bitumen ductility test instrument according to claim 1; An end that it is characterized in that described movable plate (61) is equipped with a bolt and nut seat (613); This bolt and nut seat (613) matches with said screw rod (6); The other end pivot of movable plate (61) is provided with a roller (612), and this roller (612) matches with guide rail (6121), and guide rail (6121) is fixed on the inwall of said tank (2) and portion on the upper side.

8. bitumen ductility test instrument according to claim 1; It is characterized in that described water circulation mechanism (7) comprises a water pump (71) and a solenoid valve (72); Water pump (71) is fixed on the frame (1); On this water pump (71), have a water pump returning pipe joint (711) and a water pump water outlet pipe adapter (712); Water pump returning pipe joint (711) has one first backwater interface (7111) and one second backwater interface (7112), and water pump water outlet pipe adapter (712) has one first water outlet interface (7121) and one second water outlet interface (7122), and solenoid valve (72) is fixing in position and frame (1) corresponding to an end of water pump (71); This solenoid valve (72) has one first interface (721) and one second interface (722); End at described tank (2) is equipped with a tank first interface (22) and a tank second interface (23), and is equipped with a tank the 3rd interface (24) and a tank the 4th interface (25) at the other end of tank (2), and the described first backwater interface (7111) is connected with described tank first interface (22) by pipeline; The described second backwater interface (7112) is connected with described tank second interface (23) by pipeline; The described first water outlet interface (7121) is connected with described tank the 4th interface (25) by pipeline, and the described second water outlet interface (7122) is connected with described first interface (721) by pipeline, and described second interface (722) is connected with described tank the 3rd interface (24) by pipeline; Wherein, described tank the 3rd interface (24) is positioned at the top of described tank the 4th interface (25).

9. bitumen ductility test instrument according to claim 1 is characterized in that having one second die trial reference column (81) on the described die trial locating piece (8), and this second die trial reference column (81) is corresponding with the described first die trial reference column (611).

10. bitumen ductility test instrument according to claim 1 is characterized in that having inserted divider (311) between described evaporation tube (31) and the described heating tube (4), and the outer wall of described tank (2) is coated with heat-insulation layer (26).