The spiral agitator that is used for asphalt concrete conveyor
Technical field
The utility model is mainly concerned with the agitating device field, refers in particular to the spiral agitator that is used for asphalt concrete conveyor that a kind of dispersion that is used for dry or half-dried rigid thick, thin compound mixes.
Background technology
In the prior art, asphalt concrete conveyor is the corollary equipment of Techniques of Large-sized Asphalt Concrete Spreader construction, intert between asphalt transport vehicle and paver, be used for storing, transportation and the asphalt that mixes and stirs again from haulage truck, reach the demixing temperature that improves asphalt and the effect of aggregate segregation, reduce the road surface voidage, realize the glitch-free continuous construction operation of paver, thereby improve the purpose of pavement spread quality and flatness, for better solving the demixing temperature and the aggregate segregation of asphalt, present most transfer car(buggy)s have all adopted agitating device that asphalt is carried out secondary and have mixed and stirred.
In the process of secondary mix, the work of agitating device is only first mix to be disperseed to mix, material is to flow, be mingled with and slight roll and crumple, agitating device is done mild stirring movement, purpose is to eliminate material temperature segregation and aggregate segregation simultaneously, avoids causing because of strenuous exercise the change of new segregation or level proportioning, cuts down the consumption of energy.At present existing secondary mix agitating device has variable-pitch screw formula and dual horizontal axoplasm leaf formula.From agitation mechanism analysis and field experiment data feedback, two kinds of secondary mix agitating devices respectively have its weak point:
Compound was mainly axial flow when 1, variable-pitch screw stirred, and stirred under the route short, and screw pitch changes the aggregate segregation that the slight mix motion that causes is difficult to eliminate compound;
2, dual horizontal axoplasm leaf formula agitating device, radially stirring movement is strong, a little less than the axial flow, is prone to the extreme case that stirs material or owe to stir material: cross the stirring material because of the stirring movement fierceness, grating changes, the particle fragmentation causes new segregation; Owe to stir material and can not eliminate original segregation a little less than because of stirring movement.
The utility model content
The technical problems to be solved in the utility model just is: at the technical problem of prior art existence, the utility model provide a kind of can balanced variable-pitch screw and the stirring movement of dual horizontal axoplasm leaf formula, thereby in axial flow and radial motion, all keep the spiral agitator that is used for asphalt concrete conveyor of better effects.
In order to solve the problems of the technologies described above, the solution that the utility model proposes is: a kind of spiral agitator that is used for asphalt concrete conveyor, it comprises shaft and several agitating units that links to each other with shaft by securing member more than one or one, described agitating unit comprises mixing arm and the stirring vane that is connected on the mixing arm, it is characterized in that: described stirring vane is the fan annular.
Described securing member is a holder, and mixing arm links to each other with shaft by holder.
The established angle of the stirring vane on the described adjacent shaft correspondence position is opposite.
Compared with prior art, advantage of the present utility model just is: the spiral agitator that is used for asphalt concrete conveyor of the present utility model adopts the sector circular leaf sheet of wide-angle, banded formula, and radially stirring movement is mild, and axially impetus is obvious; Compound carries out mild stirring in axial flow, do not have the extreme case that stirs and owe to stir, and can effectively eliminate the secondary segregation of compound.When established angle that changes stirring vane and interlobate installing space, can form different belt lead angles, to adapt to the stirring movement of different compounds; And can also be stirred under the state that material do not seethe with excitement, allow compound in flowing, disperse to mix, the stirring movement that this kind is mild, the secondary that is suitable for compound stirs, and the while also is applicable to the first mixing of fragility particle mixture.
Description of drawings
Structural representation when Fig. 1 is the utility model employing single shaft;
Structural representation when Fig. 2 is the utility model employing twin shaft.
Marginal data
1, shaft 11, first shaft
12, second shaft 2, holder
3, mixing arm 4, stirring vane
5, screw bolt and nut
The specific embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details.
As shown in Figure 1, the spiral agitator that is used for asphalt concrete conveyor of the present utility model, it comprises shaft 1 and several agitating units that links to each other with shaft 1 by securing member more than one or one, agitating unit comprises mixing arm 3 and the stirring vane 4 that is connected on the mixing arm 3, and stirring vane is the fan annular.Securing member is a holder 2, and mixing arm 3 is fixed on the shaft 1 by holder 2, and stirring vane 4 links to each other with mixing arm 3 by screw bolt and nut 5.The utility model stirring vane 4 is shaped as the fan ring type, and stirring vane 4 distributes in groups by certain parameter on shaft 1, forms single interrupted belt helical stir unit.The established angle of the stirring vane 4 on adjacent shaft 1 correspondence position is opposite.Referring to the spiral agitator among Fig. 1 is single-shaft configuration.In another embodiment, referring to shown in Figure 2, the utility model comprises first shaft 11 and second shaft 12, the established angle of the stirring vane 4 of correspondence position is opposite on first shaft 11 and second shaft 12, like this, two parallel reversed arrangement in interrupted belt helical stir unit form the interrupted belt spiral agitator of dual horizontal axle.The spacing of stirring vane 4 between established angle on the mixing arm 3 and stirring vane 4 all can be adjusted as required, forms different belt lead angles, to adapt to the stirring movement of different compounds.Wherein, the stirring vane 4 of wide-angle, band fan cyclic formula, radially stirring movement is mild, and axially impetus is obvious.Compound carries out mild stirring in axial flow, do not have the extreme case that stirs and owe to stir, and can effectively eliminate the secondary segregation of compound.When established angle that changes stirring vane and interlobate installing space, can form different belt lead angles, to adapt to the stirring movement of different compounds.