JP2016106193A - Gussasphalt finisher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gussasphalt finisher which solves a problem with unequal distribution and consumption of an asphalt mixture and thereby enabling the asphalt mixture to be efficiently consumed.SOLUTION: A gussasphalt finisher 10 comprises: a screw conveyor device 14 which conveys a gussasphalt mixture to a screw spreader 15; a screed 16 to spread and level the gussasphalt mixture; a left-and-right pair of troughs 22 and 22 extended in a longitudinal direction of the gussasphalt finisher 10; a left-and-right pair of screw feeders 23 and 23 respectively installed on the left-and-right pair of troughs 22 and 22; and a storage section with four sides, in front, behind, left and right, thereof shielded by plates so as to store the gussasphalt mixture with high fluidity in front of the left-and-right pair of troughs 22 and 22. The storage section has a separation cover 24 which is provided with a cut-out section 25 at a front edge section thereof and separates the left-and-right pair of troughs 22 and 22. A height of the cut-out section 25 is lower than outer peripheries of the screw feeders 23 and 23.SELECTED DRAWING: Figure 3

Description

  TECHNICAL FIELD The present invention relates to a goose asphalt finisher, and in particular, a goose for conveying a goose mixture fed into a composite hopper toward a screw spreader on the rear side of the machine body by a screw conveyor device having a pair of left and right screw feeders. It relates to asphalt finishers.

  Conventionally, a goose asphalt finisher is known as a dedicated finisher that spreads a goose asphalt composite material (hereinafter referred to as “goose composite material”) having properties such as high fluidity on a paved surface.

  This goose asphalt finisher is often used mainly for foundation construction of bridge floor slabs. Moreover, the goose mixture used for the pavement of such foundation construction has many asphalt components compared with normal asphalt mixture, and also heating temperature is as high as 200-300 degreeC. Therefore, it has a high fluidity and is difficult to accumulate and easily diffuses.

  Conventionally, as a goose asphalt finisher that handles such goose mixes, a pair of left and right troughs formed in parallel between the mix hopper and the screw spreader, and left and right 1 provided rotatably in the troughs, respectively. A screw conveyor device having a pair of screw feeders is provided, and a structure is known in which the goose mixture fed into the composite hopper is sent to the screw spreader side by rotation of the screw feeder (for example, a patent) Reference 1).

Japanese Patent No. 3457791

  However, in the goose asphalt finisher known from Patent Document 1, the goose mixture put into the composite hopper may not be uniformly distributed over the entire left and right width of the conveyor conveyance path.

  By the way, it is not an asphalt finisher using goose mix, but as an approximation technique, asphalt finisher using asphalt mix is provided with a mountain-shaped partition cover between the left and right troughs in the mix hopper There has already been known an asphalt finisher having a structure in which the input asphalt mixture can be distributed substantially equally to the left and right troughs.

  The outline of the asphalt finisher using the asphalt mixture will be described with reference to FIGS. 6 to 10. The asphalt finisher includes an airframe 51, a composite hopper 52 provided on the front side of the airframe 51, and the composite hopper 52. A screw conveyor device 53 that conveys a mixture (not shown) put into the material hopper 52 to the rear of the machine body 51, and a mixture material that has been conveyed to the rear of the machine body 51 by the screw conveyor device 53 in the width direction of the road surface. And a screed 55 for spreading and leveling the composite material diffused on the road surface by the screw spreader 54.

  The screw conveyor device 53 is provided in a pair of left and right troughs 56, 56 disposed between the mixture hopper 52 and the screw spreader 54, and the left and right troughs 56, 56, respectively. And screw feeders 57, 57 that rotate with spiral wings on the outer peripheral surface, and between the pair of troughs 56, 56, that is, between the two troughs 56, 56, between the troughs 56, 56. A partition cover 59 having a mountain shape in front view for partitioning and distributing the composite material introduced into the composite material hopper 52 to the troughs 56 and 56 from the front end portion 52 a of the composite hopper 52 is provided. The screw spreader 54 is provided continuously.

  The asphalt finisher 50 configured in this manner is divided into left and right troughs 56 when the mixed material at a predetermined temperature is put into the mixed material hopper 52 and the mixed material collides with the partition cover 59. , 56. Further, the mixed material accommodated in each trough 56, 56 is sent to the screw spreader 54 in the rearward direction of the machine body 51 by the spiral blades of the rotating screw feeders 57, 57, and the width of the road surface is increased by the screw spreader 54. It is diffused in the direction and then spread with a screed 55. As a result, paving is performed.

  However, in the asphalt finisher shown in FIGS. 6 to 10, the left and right troughs 56, 56 are partitioned by the partition cover 59, and a large amount of composite material always remains in one of the troughs 56, 56 at the end of the construction. That is, there is a problem that the remaining part is generated and the composite material cannot be used up well.

  Moreover, the trouble of manually transferring the remaining material to the shortage trough during construction is a problem.

  Therefore, there is a technical problem to be solved in order to solve the remaining problem of the mixed material, and to efficiently consume the mixed material, and the present invention aims to solve this problem. To do.

  The present invention has been proposed in order to achieve the above object, and the invention according to claim 1 is characterized in that the left and right 1 are formed in parallel from the inside of the composite hopper into which the goose composite is introduced toward the rear side of the machine body. A screw conveyor device having a pair of troughs and a pair of left and right screw feeders provided in each of the troughs, and the goose mixture put into the mixture hopper is placed on the rear side of the machine body by the screw conveyor device. In the goose asphalt finisher that conveys to the screw spreader and diffuses in the width direction of the road surface with the screw spreader, and then spreads it with a screed, the pair of left and right troughs are partitioned and put into the composite hopper A partition cover having a mountain shape in front view for distributing the coming goose mixture to the left and right troughs; The goose mixture material in a portion of the cover to provide a gussasphalt finisher provided with other bypass movable notch into the trough from the one trough.

  According to this configuration, the goose mixture that behaves like a liquid comes and goes to the left and right troughs through the bypass passage that is a notch, and is uniformly filled in the left and right troughs through the bypass passage. The liquid level can always keep the same height on the left and right, and it consumes goose mix while balancing on the left and right.

  According to a second aspect of the present invention, in the configuration of the first aspect, each screw feeder can individually convey the goose mixture in the trough in two forward and reverse directions, and the notch is formed on the front side of the body. Provided goose asphalt finisher.

  According to this configuration, even if a lot of goose mixture remains in the trough on one side at the end of the construction, if the screw feeder on one side where a lot of goose mixture remains is reversed, the remaining goose mixture Can be easily returned to the side of the trough on the smaller side through the notch.

  According to the first aspect of the invention, by bypassing the left and right troughs, the left and right troughs can be uniformly held with the goose mixture, and the goose mixture can be efficiently consumed while being balanced on the left and right. . In addition, since there is no longer a lot of goose mixture left in the trough on one side at the end of the construction, the effect of reducing the work of manually transferring the remaining mixture, which has been a problem in the past, can be expected.

  In the invention according to claim 2, even if a lot of goose mixture remains in the trough on one side at the end of construction, if the screw feeder on one side where a lot of goose mixture remains is reversed, the remaining goose Since a part of the mixture can be automatically transferred into the smaller trough, an effect of preventing wasteful use of the goose mixture is expected.

The side view of the goose asphalt finisher concerning one embodiment of the present invention. The top view of a goose asphalt finisher same as the above. The figure explaining the composite hopper periphery structure in a goose asphalt finisher same as the above. FIG. 4 is a schematic sectional view taken along line AA in FIG. 3. The schematic sectional drawing which follows the BB line of FIG. The side view of the conventional goose asphalt finisher. The top view of the conventional goose asphalt finisher. The figure explaining the composite hopper periphery structure in the conventional goose asphalt finisher. FIG. 9 is a schematic cross-sectional view taken along the line CC in FIG. 8. FIG. 10 is a schematic cross-sectional view taken along the line DD in FIG. 9.

  The present invention solves the problem of the remaining part of the composite material and achieves the purpose of allowing the composite material to be consumed efficiently, from the inside of the composite hopper into which the goose composite material is introduced toward the rear side of the fuselage. A screw conveyor device having a pair of left and right troughs formed in parallel and a pair of left and right screw feeders provided in the trough, and the goose mixture put into the mixture hopper is In the goose asphalt finisher that is conveyed to the screw spreader on the rear side of the machine body by the device, diffused in the width direction of the road surface with the screw spreader, and then spread with a screed, the pair of left and right troughs are partitioned, A partition cover having a mountain shape in front view that distributes the goose mixture fed into the material hopper to the left and right troughs. Obtain together was achieved by the goose mixture material in a portion of the partition cover is provided with a notch bypass movable in the other trough from the one trough.

  Hereinafter, a preferred example of a goose asphalt finisher according to an embodiment of the present invention will be described with reference to FIGS.

  1 and 2 show a goose asphalt finisher according to the present invention, FIG. 1 is an external perspective view thereof, and FIG. 2 is a plan view thereof. 3 to 5 schematically show a detailed structure related to the characteristic part of the goose asphalt finisher. Therefore, the characteristic part will be described with reference to FIGS. Furthermore, in the following description, the left-right direction left side of FIG. 1 is described as the front-rear direction front, the right side is the rear side, the up-down direction is up-down, and the direction perpendicular to the page is left-right.

  1 and 2, the goose asphalt finisher 10 is provided with two left and right front wheels 12a and 12a serving as steering wheels on the front side below the body 11, and two left and right rear wheels serving as driving wheels on the rear side. Wheels 12b and 12b are provided.

  On the front side of the upper part of the machine body 11, there is provided a composite hopper 13 with a heat retaining device for receiving a goose asphalt composite material (not shown) (hereinafter referred to as “goose composite material”) that is fed from a cooker car (not shown). . In addition, the goose compound is used by being heated to 200 to 300 ° C. as described above, and has a high fluidity and has a property of being difficult to accumulate and easily diffusing.

  The goose mixture received in the composite hopper 13 is conveyed to the screw spreader 15 by the screw conveyor device 14 to the rear part of the machine body 11 and spread on the unpaved surface by the screw spreader 15. Behind the screw spreader 15, a screed 16 for spreading and leveling the spread goose mixture is supported at the rear end of the leveling arm 17.

  A pair of leveling arms 17 are provided on the left and right of the body 11. The leveling arm 17 is attached to the airframe 11 at the front end via the leveling cylinder 18 and the rear side is attached to the airframe 11 via a scree drift cylinder 19 that is hydraulically free during pavement construction. Yes. Further, level roller devices 20 and 20 are provided at predetermined positions substantially in the middle of the leveling arms 17 and 17 so that the upper end side is connected to the predetermined position and supports the leveling arms 17 and 17 on the unpaved surface. It has been.

  At the lower end side of the level roller devices 20 and 20, a roller 21 that rolls in contact with the unpaved surface is attached. The level roller devices 20 and 20 support the weight of the screed 16 through the leveling arms 17 and 17, and level the goose mixture on the unpaved surface. Therefore, the adjustment of the pavement thickness is performed mainly by adjusting the level roller devices 20 and 20 and the leveling cylinders 18 and 18 up and down, and the pavement is paved at a gap height between the lower surface of the screed 16 and the unpaved surface. Thickness is determined.

  The screw conveyor device 14 is provided between the screw hopper 13 and the screw spreader 15, and is a pair of left and right troughs 22 that are parallel to each other and are each formed in a substantially U-shaped cross section when viewed from the front. 22 and screw feeders 23, 23 having spiral wings on the outer peripheral surface disposed in the left and right troughs 22, 22 and capable of rotating in both forward and reverse directions. Further, as shown in FIGS. 2 to 6, the screw conveyor device 14 divides the pair of troughs 22, 22, that is, the two troughs 22, 22, and puts them into the composite material hopper 13. A partition cover 24 having a mountain shape in front view is provided to distribute the incoming goose mixture into the troughs 22 and 22 substantially evenly. The partition cover 24 is formed with a notch 25 between the front end portion inner surface 13a of the composite hopper 13 and continuously formed from the middle of the composite hopper 13 to just before the screw spreader 15.

  The notch 25 forms a bypass passage for bypassing the goose mixture between the left and right troughs 22, 22, as shown in FIGS. 4 and 5, up to a substantially axial center of the screw feeder 23. Notched at a depth of. By doing so, the goose mixture with high fluidity flows so as to come and go in the left and right troughs 22 and 22 through the bypass passage by the notch 25, and the liquid level of the goose mixture is left and right. , 22 can maintain substantially the same height.

  Next, the operation of the goose asphalt finisher 10 configured as described above will be described. When the goose composite material heated to a predetermined temperature (200 to 300 ° C.) and fluidized is introduced into the composite hopper 13 from a cooker wheel (not shown), the goose composite material is apex of the partition cover 24. It is distributed to the left and right over the (ridge line), and is accommodated in the left and right troughs 22 and 22. Further, the goose mixture material accommodated in the troughs 22 and 22 is sent to the screw spreader 15 in the rearward direction of the machine body 11 by the spiral wings of the rotating screw feeders 23 and 23, and the screw spreader 15 is diffused in the width direction of the unpaved road surface, and then spread by the screed 16. As a result, paving is performed.

  Further, in each of the troughs 22, 22, the partition cover 24 is provided with a notch portion 25 as the bypass passage, so that the goose mixture that has been put in the left and right troughs 22, 22 passes through the notch portion 25. And the left and right troughs 22, 22 are uniformly filled. In other words, the goose mixture is consumed while balancing left and right, and the goose mixture in the side troughs 22 and 22 is fed almost uniformly from the beginning to the end of the construction, leaving only a large amount of trough on one side. lose.

  In addition, if the goose mixture remains partially, the goose mixture is sent to the front end portion inner surface 13a side of the hopper 13 by turning the screw feeder 23 on the other side, thereby forming a notch serving as a bypass passage. The goose mixture can be automatically sent to the next trough side through the section 25. Thereby, it becomes possible to prevent the consumption of useless goose mixture.

  It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

  The present invention is not limited to the goose asphalt finisher, and can be widely applied to a paving machine that spreads and smoothes a mixture with high fluidity.

10 Goose Asphalt Finisher 11 Airframe 13 Composite Hopper 13a Front End Inner Surface 14 Screw Conveyor Device 15 Screw Spreader 16 Screed 22 Trough 23 Screw Feeder 24 Partition Cover 25 Notch

Claims (5)

A goose asphalt finisher comprising a screw conveyor device for conveying goose mixture to a screw spreader, and a screed for spreading and smoothing the goose mixture,
A pair of left and right troughs extending in the longitudinal direction of the aircraft,
A pair of left and right screw feeders respectively provided in the pair of left and right troughs;
In front of the pair of left and right troughs, a storage portion that shields the front, rear, left and right sides with a plate so as to collect the goose mixture with high fluidity, and
In the storage part, a partition cover for partitioning the pair of left and right troughs, in which a notch part is formed at a front end part, is provided,
The height of the notch is lower than the outer periphery of the screw feeder,
Goose asphalt finisher characterized by that. The partition cover has a mountain shape when viewed from the front.
The goose asphalt finisher according to claim 1. The height of the front plate forming the reservoir is substantially the same as the rear plate and the left and right plates.
The goose asphalt finisher according to claim 1 or 2.   The goose asphalt finisher according to any one of claims 1 to 3, wherein the front plate forming the storage portion is inclined toward the inside of the composite hopper.   The goose asphalt finisher according to any one of claims 1 to 4, wherein the left and right plates forming the storage portion are inclined toward the inside of the composite hopper.

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