CN210752352U - Automatic mixer for asphalt mixture - Google Patents
Automatic mixer for asphalt mixture Download PDFInfo
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- CN210752352U CN210752352U CN201921722601.8U CN201921722601U CN210752352U CN 210752352 U CN210752352 U CN 210752352U CN 201921722601 U CN201921722601 U CN 201921722601U CN 210752352 U CN210752352 U CN 210752352U
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Abstract
The utility model discloses an automatic machine that stirs of bituminous mixture, its characterized in that: the stirring device comprises a support (1), a transmission case (2), a motor (3), a driving wheel (4), a conveyor belt (5), a driven wheel (6), a transmission shaft (7), a driving gear (8), a driven gear (9), a stirring shaft (10), a stirring paddle (11), a stirring pot (12), a guide rod (13), a stirring pot supporting seat (14), a protective cover (15), a first connecting rod (16), a second connecting rod (17), a rotating shaft (18) and a supporting rod (19). The utility model discloses can realize that the bituminous mixture stirs voluntarily, can force this stirred tank (12) this protection casing (15) to be in the guard state when the stirring always, can prevent the problem of splashing that the stirring produced.
Description
Technical Field
The utility model belongs to an automatic machine that stirs of bituminous mixture.
Background
The standards T0702-2000 "test procedure for asphalt mixture for road engineering" are widely used in laboratories of scientific research, construction and supervision departments of road systems. The operation procedure is as follows:
firstly, aggregate is heated, coarse aggregate and fine aggregate are measured according to a ratio, then are uniformly mixed and are heated (generally 170-180 ℃);
secondly, heating asphalt, heating and melting in an oven or an electric furnace, heating common asphalt to 155-165 ℃, and heating the modified asphalt to 10-20 ℃ higher than that of the common asphalt;
thirdly, stirring the asphalt mixture (adopting an asphalt mixture stirring machine), respectively pouring the preheated aggregate and the asphalt into a stirring pot, starting stirring for 2-5min, and stopping stirring after uniform stirring;
and fourthly, taking out the asphalt mixture and adding the asphalt mixture into the test piece mold, and pouring the asphalt mixture out by adopting the modes of drawing out the materials, scooping or turning over the stirring pot to incline and pouring the asphalt mixture out according to the requirements.
The prior asphalt mixing machine has the following defects in use and is analyzed as follows:
firstly, when the rotating speed of a stirring paddle of a stirring pot of the existing asphalt mixture stirring machine is higher, asphalt and aggregate in the stirring pot splash out;
secondly, the asphalt and aggregate are adopted to heat in advance in the prior art, but do not heat during stirring, and when the single stirring amount is large, because the stirring time is long, the problem that the asphalt cooling viscosity is increased to influence the mixing effect exists.
SUMMERY OF THE UTILITY MODEL
In view of the one or more deficiencies in the prior art, the present invention provides an automatic mixer for asphalt mixtures.
In order to achieve the purpose, the utility model provides an automatic machine that stirs of bituminous mixture, its characterized in that: the device comprises a support (1), a transmission case (2), a motor (3), a driving wheel (4), a conveyor belt (5), a driven wheel (6), a transmission shaft (7), a driving gear (8), a driven gear (9), a stirring shaft (10), a stirring paddle (11), a stirring pot (12), a guide rod (13), a stirring pot supporting seat (14), a protective cover (15), a first connecting rod (16), a second connecting rod (17), a rotating shaft (18) and a supporting rod (19); the transmission case (2) is fixedly arranged above the support (1), the driving wheel (4), the conveyor belt (5), the driven wheel (6), the transmission shaft (7), the driving gear and the driven gear (9) are positioned in the transmission case (2), the output end of the motor (3) is coaxially connected with the driving wheel (4), the driving wheel (4) is connected with the driven wheel (6) through the conveyor belt (5), the driven wheel (6) is coaxially connected with the transmission shaft (7), the driving gear (8) is coaxially connected with the transmission shaft (7), the driven gear (9) is meshed with the driving gear (8), the upper end of the stirring shaft (10) is coaxially connected with the driven gear (9), and the stirring paddle (11) is arranged at the lower end of the stirring shaft (10); the stirring pot (12) corresponds to the stirring paddle (11); the guide rod (13) is vertically arranged and is connected with the transmission case (2) in a sliding manner, the rotating shaft (18) is rotatably connected with the transmission case (2), one end of the first connecting rod (16) is hinged with the upper end of the guide rod (13), the other end of the first connecting rod (16) is connected with one end of the second connecting rod (17), the other end of the second connecting rod (17) is fixedly connected with the rotating shaft (18), one end of the supporting rod (19) is fixedly connected with the rotating shaft (18), the other end of the supporting rod (19) is fixedly connected with the protective cover (15), and the protective cover (15) is in a C-shaped plate shape or a U-shaped plate shape; the stirring pot supporting seat (14) is fixedly arranged at the lower end of the guide rod (13), and the stirring pot (12) is arranged on the stirring pot supporting seat (14).
By adopting the scheme, when in stirring, asphalt mixture (asphalt, gravel mixture or cement and the like) is poured into the stirring pot (12), then the protective cover (15) is pressed down, the protective cover (15) drives the rotating shaft (18) to rotate through the supporting rod (19), the rotating shaft (18) drives the second connecting rod (17) to move, the second connecting rod (17) drives the first connecting rod (16) to move, the first connecting rod (16) drives the guide rod (13) to slide upwards along the vertical direction relative to the transmission box (2), the guide rod (13) drives the stirring pot supporting seat (14) and the stirring pot (12) to move upwards together, the protective cover (15) can finally approach or contact the upper edge of the stirring pot (12), the stirring pot (12) can reach the stirring position due to ascending (namely the stirring paddle (11) is positioned in the stirring pot (12)), and then the motor (3) is started, this motor (3) drives action wheel (4) and rotates, this action wheel (4) drive through conveyer belt (5) and rotate from driving wheel (6), should drive transmission shaft (7) coaxial rotation from driving wheel (6), this transmission shaft (7) drive driving gear (8) and rotate, this driving gear (8) drive driven gear (9) and rotate, this driven gear (9) drive (mixing) shaft (10) coaxial rotation, this (mixing) shaft (10) drive stirring rake (11) and rotate, because stirring rake (11) are located in agitator kettle (12), consequently can be with the bituminous mixture stirring in agitator kettle (12).
After the mixture is stirred evenly, the protective cover (15) can be pulled upwards, the protective cover (15) drives the rotating shaft (18) to rotate through the supporting rod (19), the rotating shaft (18) drives the second connecting rod (17) to move, the second connecting rod (17) drives the first connecting rod (16) to move, the first connecting rod (16) drives the guide rod (13) to slide downwards along the vertical direction relative to the transmission case (2), the guide rod (13) drives the stirring pot supporting seat (14) and the stirring pot (12) to move downwards together, the protective cover (15) can be upwarped and simultaneously far away from the upper edge of the stirring pot (12), the stirring pan (12) moves downwards, the stirring paddle (11) and the stirring pan (12) move relatively to each other and are separated, the stirring pot (12) can take or pour the asphalt mixture which is uniformly stirred in the stirring pot (12) in a mode of unloading from the stirring pot supporting seat (14), scooping or pouring after rotation.
Because the protective cover (15) and the stirring pot (12) are mutually linked, when the protective cover (15) is at a protective position, the protective cover (15) forcibly protects the stirring pot (12); when the protective cover (15) is upwarped, the stirring pot (12) moves downwards to be separated from the stirring paddle (11), so that an operation space for taking and pouring materials is reserved, and interference can be avoided.
Therefore, the technical scheme can solve the problem that asphalt and aggregate in the stirring pot splash out when the rotating speed of the stirring paddle in the stirring pot is high, and meanwhile, the protective cover (15) can be forced to be in a protective state all the time when the stirring pot (12) is stirred due to the linkage displacement of the protective cover (15) and the stirring pot (12), so that the problem of cover leakage can be prevented.
Furthermore, a heat conduction column (12-1) is arranged in the middle of the stirring pot (12), a heating insertion hole (12-2) is formed in the heat conduction column (12-1), and the lower end of the heating insertion hole (12-2) is opened; the bracket (1) is also provided with a heating device; the heating device is provided with a first heat unit (20-1) and a second heat unit (20-2), the first heat unit (20-1) is used for heating the outer wall of the bottom of the stirring pot (12) in a contact mode, and the second heat unit (20-2) is used for being inserted into the heating insertion hole (12-2) and heating the heat conduction column (12-1). The first heat unit (20-1) is used for heating the outer wall of the bottom of the stirring pot (12) in a contact mode, and the second heat unit (20-2) is used for being inserted into the heating insertion hole (12-2) and heating the heat conduction column (12-1), so that the asphalt mixture in the stirring pot (12) can be heated inside and outside simultaneously, the heating time can be prolonged, the heating uniformity can be guaranteed, and the phenomenon that the stirring speed and the stirring effect are influenced due to the fact that the internal temperature of the asphalt mixture is too low is avoided.
Further, the heating device is height-adjustable on the support (1).
The utility model discloses beneficial effect:
firstly, the utility model can realize automatic stirring of the asphalt mixture, force the protective cover to be in a protective state all the time when the stirring pan stirs, and prevent the splashing problem caused by stirring;
second, the utility model discloses can realize heating earlier to the pitch in the agitator kettle and gathering materials before the stirring or when stirring, utilize the single stirring volume when big owing to shorten the churning time, prevent that pitch cooling viscosity from rising and influencing the problem of mixing the effect.
Third, the utility model discloses can realize that bituminous mixture can realize inside and outside concurrent heating in this agitator kettle, can avoid the interior outer bituminous mixture temperature of agitator kettle to produce differently, can improve bituminous mixture stirring speed and effect greatly.
Drawings
Fig. 1 is a front view of a stirrer pot covered with a protective cover according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of a stirrer pot covered by a protective cover according to an embodiment of the present invention.
Fig. 3 is a perspective view of a protective cover of the stirring pot according to an embodiment of the present invention.
Fig. 4 is a front view of the shield according to the present invention when it is opened.
Fig. 5 is a perspective view of a part of the assembly when the shield is opened by tilting upward in the first embodiment of the present invention.
Fig. 6 is a perspective view of the protective cover of the first embodiment of the present invention when it is tilted upward.
Fig. 7 is a front view of the second embodiment of the present invention during stirring.
Figure 8 is a cross-sectional view of a stirred tank in accordance with the second embodiment of the present invention.
Fig. 9 is a top view of the first heating wire.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
the first embodiment is as follows: referring to fig. 1-6, an automatic mixer for asphalt mixture comprises a support 1, a transmission case 2, a motor 3, a driving wheel 4, a conveyor belt 5, a driven wheel 6, a transmission shaft 7, a driving gear 8, a driven gear 9, a mixing shaft 10, a mixing paddle 11, a mixing pot 12, a guide rod 13, a mixing pot support 14, a protective cover 15, a first connecting rod 16, a second connecting rod 17, a rotating shaft 18 and a support rod 19.
The transmission case 2 is fixedly arranged above the bracket 1.
In particular, the transmission shaft 7 is vertically arranged.
Preferably, the transmission shaft 7 is also rotatably mounted in the transmission case 2 through the first bearing 22, so that the transmission shaft 7 is rotatably supported by the first bearing 22, and precision in rotation is ensured.
Specifically, the stirring shaft 10 is vertically arranged, and preferably, the stirring shaft 10 is further rotatably mounted in the transmission case 2 through the second bearing 23, so that the stirring shaft 10 is positioned and supported by the second bearing 23 to rotate, and precision in rotation can be ensured.
The driving gear 8 is coaxially connected with the transmission shaft 7, the driven gear 9 is meshed with the driving gear 8, the upper end of the stirring shaft 10 is coaxially connected with the driven gear 9, and the stirring paddle 11 is fixedly arranged at the lower end of the stirring shaft 10.
The stirring pot 12 corresponds to the stirring paddle 11.
The guide rod 13 is vertically arranged and is connected with the transmission case 2 in a sliding manner. Specifically, the transmission case 2 is provided with a vertical guide rod hole, and the guide rod 13 is in clearance fit with the guide rod hole 2-1.
The rotating shaft 18 is rotatably connected with the transmission case 2. Specifically, two side walls of the transmission case 2 are provided with a rotation shaft connecting hole, and two ends of the rotation shaft 18 are rotatably engaged (e.g., clearance-engaged) with the rotation shaft connecting holes.
In addition, one end of the first connecting rod 16 is hinged to the upper end of the guide rod 13, the other end of the first connecting rod 16 is connected to one end of the second connecting rod 17, the other end of the second connecting rod 17 is fixedly connected to the rotating shaft 18, one end of the supporting rod 19 is fixedly connected to the rotating shaft 18, the other end of the supporting rod 19 is fixedly connected to the protective cover 15, and the protective cover 15 is in a C-shaped plate shape or a U-shaped plate shape.
Preferably, the protective hood 15 has a top view projection profile which is identical or substantially identical to at least the operational side profile of the rim of the stirring pan 12.
In addition, the protective cover 15 is provided with a sealing strip 15-1 at the edge of one side facing the stirring pot 12, and the sealing strip 15-1 is used for matching and sealing when being contacted with the stirring pot 12.
The mixing pot supporting seat 14 is fixedly arranged at the lower end of the guide rod 13, and the mixing pot 12 is arranged on the mixing pot supporting seat 14.
The mixing pot 12 is detachably and fixedly connected or rotatably connected with the mixing pot supporting seat 14.
When the utility model is used for stirring, pre-heated asphalt and aggregate can be poured into the stirring pot 12, then the protective cover 15 is pressed down, the protective cover 15 drives the rotating shaft 18 to rotate through the supporting rod 19, the rotating shaft 18 drives the second connecting rod 17 to move, the second connecting rod 17 drives the first connecting rod 16 to move, the first connecting rod 16 drives the guide rod 13 to slide upwards along the vertical direction relative to the transmission case 2, the guide rod 13 drives the stirring pot supporting seat 14 and the stirring pot 12 to move upwards together, the protective cover 15 can finally approach or contact the upper edge of the stirring pot 12, the stirring pot 12 can reach the stirring position due to ascending, namely the stirring paddle 11 is positioned in the stirring pot 12 (see figures 1-3), then the motor 3 is started, the motor 3 drives the driving wheel 4 to rotate, the driving wheel 4 drives the driven wheel 6 to rotate through the conveyor belt 5, the driven wheel 6 drives the transmission shaft 7 to rotate coaxially, this transmission shaft 7 drives driving gear 8 and rotates, and this driving gear 8 drives driven gear 9 and rotates, and this driven gear 9 drives the coaxial rotation of (mixing) shaft 10, and this (mixing) shaft 10 drives stirring rake 11 and rotates (can see fig. 2), because stirring rake 11 is located in stirred tank 12, consequently can be with the bituminous mixture stirring in stirred tank 12.
After the stirring is uniform, as shown in fig. 4-6, the protecting cover 15 can be pulled up, the protecting cover 15 drives the rotating shaft 18 to rotate (in the direction of V1 in fig. 5) through the supporting rod 19, the rotating shaft 18 drives the second connecting rod 17 to move, the second connecting rod 17 drives the first connecting rod 16 to move, the first connecting rod 16 drives the guide rod 13 to slide vertically downwards (in the direction of F1 in fig. 5) relative to the transmission case 2, and the guide rod 13 will drive the mixer pot support 14 and the mixer pot 12 to move downwards together, the protective cover 15 will tilt up and at the same time be away from the upper edge of the mixing kettle 12, which mixing kettle 12, due to its downward movement, the stirring paddle 11 and the stirring pot 12 move relatively and are separated (see fig. 4-6), and the stirring pot 12 can be unloaded from the stirring pot supporting seat 14 or scooped or poured after rotating to take or pour the asphalt mixture which is uniformly stirred in the stirring pot 12.
As can be seen from comparison with fig. 1 to 6, since the protective cover 15 and the stirring pan 12 are moved in a linkage manner, when the protective cover 15 is in the protective position, the protective cover 15 forcibly protects the stirring pan 12; and when the protective cover 15 is upwarped, the stirring pot 12 descends to be separated from the stirring paddle 11, so that the operation space for taking and pouring materials is reserved, and the interference can be avoided.
Therefore, above-mentioned technical scheme can solve current when the stirring rake rotational speed is higher in the agitator kettle, and pitch, the aggregate in this agitator kettle have the problem of splashing away, simultaneously because this protection casing 15 and agitator kettle 12 linkage displacement, can force this agitator kettle 12 when the stirring this protection casing 15 be in the protection state all the time, can prevent to leak the cover problem.
Example two: this embodiment is substantially the same as the first embodiment, except that:
referring to fig. 7-8, in addition, a heat conduction column 12-1 is arranged in the middle of the stirring pot 12, a heating insertion hole 12-2 is arranged in the heat conduction column 12-1, and the lower end of the heating insertion hole 12-2 is open; the bracket 1 is also provided with a heating device; the heating device has a first heating unit 20-1 and a second heating unit 20-2, the first heating unit 20-1 is used for heating the outer wall of the bottom of the stirring pot 12 in a contact manner, and the second heating unit 20-2 is used for being inserted into the heating insertion hole 12-2 and heating the heat conduction column 12-1. The first thermal unit 20-1 includes a heat conductive tray 20-11 and a first heating wire 20-12, and the first heating wire 20-12 is disposed in the heat conductive tray 20-11. The second thermal unit 20-2 comprises a heat pipe 20-21 and a second heater wire 20-22, the lower end of the heat pipe 20-2 is fixedly connected with the middle part of the heat conducting tray 20-11, and the second heater wire 20-22 is arranged in the heat pipe 20-2. The heat conductive pipes 20-21 can be inserted into the heating insertion holes 12-2. And when the heat conducting tray 20-11 is in contact with the outer wall of the bottom of the stirring pot 12, the heat conducting pipe 20-2 is just inserted into the heating insertion hole 12-2 completely. Therefore, when the first heating wire 20-12 and the second heating wire 20-22 are energized, the first heating unit 20-1 can be heated in contact with the outer wall of the bottom of the mixing kettle 12, and the second heating unit 20-2 is inserted into the heating insertion hole 12-2 and heats the heat conduction column 12-1. Preferably, the first heater filament 20-12 and the second heater filament 20-22 are electrically connected in series and operate simultaneously.
Because the first thermal unit 20-1 is used for heating the outer wall of the bottom of the stirring pot 12 in a contact manner, and the second thermal unit 20-2 is used for being inserted into the heating insertion hole 12-2 and heating the heat conduction column 12-1, the asphalt mixture in the stirring pot 12 can be heated inside and outside simultaneously, the heating time can be prolonged, the heating uniformity can be ensured, and the phenomenon that the stirring speed and the stirring effect are influenced due to the fact that the internal temperature of the asphalt mixture is too low can be avoided.
Preferably, the first heating wire 20-12 is a disk-shaped or archimedes spiral heating wire (see fig. 9). The heating efficiency can be improved, and uniform heating can be ensured.
Preferably, the second heating wires 20-22 are cylindrical helical heating wires. The heating efficiency can be improved, and uniform heating can be ensured.
Further, the heating device is height-adjustable on the support 1.
Specifically, the bracket 1 comprises a base 1-1 and two guide columns 1-2 arranged in parallel, the lower ends of the two guide columns 1-2 are fixedly connected with the base 1-1, and the upper ends of the two guide columns 1-2 are fixedly provided with a transmission case 2. And a lifting adjusting plate 1-3 is slidably arranged on the two guide columns 1-2, and the heating device is fixedly arranged on the lifting adjusting plate 1-3. An electric cylinder 1-4 is fixedly arranged on the base 1-1, and the output end of the electric cylinder 1-4 faces upwards and is fixedly connected with the lifting adjusting plate 1-3. Therefore, the electric cylinder 1-4 can drive the lifting adjusting plate 1-3 to lift along the guide post 1-2, and the height is automatically adjusted.
The utility model discloses beneficial effect:
firstly, the utility model can realize automatic stirring of the asphalt mixture, force the protective cover to be in a protective state all the time when the stirring pan stirs, and prevent the splashing problem caused by stirring;
second, the utility model discloses can realize heating earlier to the pitch in the agitator kettle and gathering materials before the stirring or when stirring, utilize the single stirring volume when big owing to shorten the churning time, prevent that pitch cooling viscosity from rising and influencing the problem of mixing the effect.
Third, the utility model discloses can realize that bituminous mixture can realize inside and outside concurrent heating in this agitator kettle, can avoid the interior outer bituminous mixture temperature of agitator kettle to produce differently, can improve bituminous mixture stirring speed and effect greatly.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (3)
1. The utility model provides an automatic machine of mixing of bituminous mixture which characterized in that: the device comprises a support (1), a transmission case (2), a motor (3), a driving wheel (4), a conveyor belt (5), a driven wheel (6), a transmission shaft (7), a driving gear (8), a driven gear (9), a stirring shaft (10), a stirring paddle (11), a stirring pot (12), a guide rod (13), a stirring pot supporting seat (14), a protective cover (15), a first connecting rod (16), a second connecting rod (17), a rotating shaft (18) and a supporting rod (19);
the transmission case (2) is fixedly arranged above the support (1), and the driving wheel (4), the conveying belt (5), the driven wheel (6), the transmission shaft (7), the driving gear (8) and the driven gear (9) are positioned in the transmission case (2);
the output end of the motor (3) is coaxially connected with the driving wheel (4), the driving wheel (4) is connected with the driven wheel (6) through the conveyor belt (5), the driven wheel (6) is coaxially connected with the transmission shaft (7), the driving gear (8) is coaxially connected with the transmission shaft (7), the driven gear (9) is meshed with the driving gear (8), the upper end of the stirring shaft (10) is coaxially connected with the driven gear (9), and the stirring paddle (11) is installed at the lower end of the stirring shaft (10);
the stirring pot (12) corresponds to the stirring paddle (11);
guide arm (13) vertical setting and with transmission case (2) slidable connection, pivot (18) with transmission case (2) rotatable coupling, this first connecting rod (16) one end with guide arm (13) upper end is articulated, this first connecting rod (16) other end with second connecting rod (17) one end is connected, this second connecting rod (17) other end with pivot (18) rigid coupling, this supporting rod (19) one end and pivot (18) rigid coupling, this supporting rod (19) other end and protection casing (15) rigid coupling, this protection casing (15) are C shape platelike board or U shape platelike.
2. The automatic mixer of asphalt mixture according to claim 1, characterized in that: a heat conduction column (12-1) is arranged in the middle of the stirring pot (12), a heating insertion hole (12-2) is formed in the heat conduction column (12-1), and the lower end of the heating insertion hole (12-2) is opened;
the bracket (1) is also provided with a heating device;
the heating device is provided with a first heat unit (20-1) and a second heat unit (20-2), the first heat unit (20-1) is used for heating the outer wall of the bottom of the stirring pot (12) in a contact mode, and the second heat unit (20-2) is used for being inserted into the heating insertion hole (12-2) and heating the heat conduction column (12-1).
3. The automatic mixer of asphalt mixture according to claim 2, characterized in that: the heating device is height-adjustable on the support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921722601.8U CN210752352U (en) | 2019-10-15 | 2019-10-15 | Automatic mixer for asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921722601.8U CN210752352U (en) | 2019-10-15 | 2019-10-15 | Automatic mixer for asphalt mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210752352U true CN210752352U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921722601.8U Active CN210752352U (en) | 2019-10-15 | 2019-10-15 | Automatic mixer for asphalt mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210752352U (en) |
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2019
- 2019-10-15 CN CN201921722601.8U patent/CN210752352U/en active Active
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