JP3446108B2 - Watering equipment for rolling machines - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler for supplying water to the surface of a roll of a compaction machine to prevent the asphalt mixture from adhering, and more particularly to a gravity sprinkler type sprinkler. Incidentally, in order to prevent the asphalt mixture from adhering to the surface of the roll of the compaction machine, for example, Japanese Patent Application No. 5-15789.
No. 0 or a liquid asphalt anti-adhesive as shown in Japanese Patent Application No. 6-110180 or a product obtained by diluting it in water may be used in a sprinkler, but the term "water" used in the present specification. Means water itself and the above liquids and diluents.

[0002]

2. Description of the Related Art A sprinkler for a compaction machine uses a forced sprinkler system in which water is forcibly supplied to the surface of a roll by using a pump or the like, and a tank arranged above the compaction machine. It is divided into a method of using the gravity water spray method in which water is sprayed from the water spray holes of the water spray pipe below the vehicle body by the weight of the water itself. The water sprinkling apparatus of the present invention is intended for the latter gravity water sprinkling method, and is mainly used for small compacting machines such as hand guide rollers.

12 and 13 are a side view and a rear view showing a conventional sprinkler for a hand guide roller.
The sprinkler 20 includes a tank 3 mounted on a body frame 2 supporting a rear roll 1 and a front roll 1 ', and a large number of sprinkler holes 5a for supplying water to the front and rear rolls (FIG. 14,
15) and a pipe 6 that connects the water discharge port of the tank 3 and the water pipe 5 to each other. Water is sent from the tank 3 to the water pipe 5 by gravity via the pipe 6, Water is sprayed from the water spray holes 5a. The water sprinkling pipes 5 are spaced apart and contact the surfaces of the rear roll 1 and the front roll 1 ', and the shape thereof is conventionally a straight pipe shape having a pipe axis parallel to the axis of the roll.

In the above-described gravity sprinkler type water sprinkler, when the water level in the tank 3 is lowered, the water supply amount to the water sprinkling pipe 5 is lower than the water supply amount to the water sprinkling pipe 5 due to a decrease in the supply pressure against the pipe resistance at a certain water level. The amount of water discharged from the water sprinkling hole 5a of No. 5 becomes larger. Both of them are balanced at a predetermined place, but as shown in FIG. 14 which is a schematic diagram showing the sprinkling state from the sprinkling pipe, the sprinkling pipe 5 is not full of water and the space inside the sprinkling pipe 5 is lost. Occurs. That is, the “water level” is also generated in the sprinkling pipe 5. This is the water level in the sprinkler tank 3, pipe resistance,
This may or may not occur depending on the size of the water spray holes 5a, and the "water level" in the water spray pipe 5 may rise or fall depending on the values of those parameters. This is a phenomenon that often occurs in gravity sprinkler type sprinklers.

[0005]

In the rolling compaction work on the flat ground, even if the "water level" occurs in the sprinkling pipe 5, it does not usually cause a problem. What happens is that the water sprinkling holes 5a are located at the lower part of the water sprinkling pipe 5 and penetrate therethrough, so that the water spreads to all of the water sprinkling holes 5a, and as shown in FIG. Because water comes out. However, as shown in FIG. 15, in the work of rolling the slope, not on the flat ground, in such a manner that the axis of the roll 1 (1 ′) is inclined, as shown in FIG. There are cases where water does not reach the water spray holes 5a. That is, in the example of FIG. 15, water is sprayed from the water spray holes 5a on the left side below the inclined water surface, but water is not discharged from the three water spray holes 5a 'on the right side.

The purpose of sprinkling water in a compaction machine is to prevent the asphalt mixture from adhering to the rolls, and it is desirable to supply water to the entire surface of the rolls when sprinkling water. In particular, it is important that water spreads over the edges of the roll surface. Because the end of the roll surface is
This is because it is a boundary portion between the surface that has been compacted and the surface that has not been compacted, and if water does not reach there, a soft, uncompressed asphalt mixture easily adheres to the roll surface. When the asphalt mixture starts to adhere to the end portion of the roll surface, the spread of the asphalt mixture material causes unevenness on the roll surface, impairing the flatness of the rolling surface.

The present invention relates to a compaction machine equipped with a gravity sprinkler type sprinkler for compacting work on a slope of an asphalt mixture, and in particular, water is spread even to the roll end portion on the slope mountain side, The purpose is to prevent the asphalt mixture from adhering to the roll surface.

[0008]

In order to achieve the above object, the present invention provides a tank mounted on a machine frame, a water spray pipe having a plurality of water spray holes for supplying water to the surface of a roll, and a tank. In a sprinkler of a gravity sprinkling type compaction machine equipped with a pipe connecting between a water discharge port and a sprinkler pipe, both end portions of the sprinkler pipe in the axial direction of the pipe are made lower than the central portion thereof. A watering device for a compaction machine characterized by being inclined was constructed.

In this case, the shape of the water sprinkling pipe is inclined at a predetermined angle from the center to both ends, or
It is formed by flattening the vicinity of the central portion, inclining only both end sides at a predetermined angle, and further inclining in an arc shape from the central portion toward both end portions. Further, the water supply port of the water sprinkling pipe may be located at the center of the water sprinkling pipe.

[0010]

[Function] Even if the slope is rolled with the axis of the roll inclined while the "water level" is generated in the sprinkler pipe, the water will reach the sprinkler holes at the end located on the slope mountain side of the sprinkler pipe. Goes around.

[0011]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a side view of a sprinkler device for a hand guide roller according to the first embodiment of the present invention, and FIG.
Its plan view and FIG. 3 are its rear views.

The water sprinkler 10 comprises a tank 3 mounted on a machine frame 2 supporting a rear roll 1 and a front roll 1 '.
And the rear and front sprinkler pipes 5 and 5'having a large number of sprinkler holes 5a for supplying water to the surface of the roll 1 (1 ').
And a tee 4 for branching the water from the water outlet of the tank 3 into the rear and front sprinkling pipes 5, 5 ', and the sprinkling pipes 5,
5'is provided with cocks 7 and 7'for controlling whether or not to flow water, and pipes 6, 6a and 6b for connecting the respective devices, and water is supplied from the tank 3 via the pipes 6 and 6a or 6b. Is sent to the water sprinkling pipe 5 or 5'by gravity, and water is sprinkled from the water sprinkling holes 5a (Figs. 4 and 5). Since the rear side sprinkling pipe 5 and the front side sprinkling pipe 5 ′ have the same structure, hereinafter, in this specification, only the rear side sprinkling pipe 5 separated from and in contact with the surface of the rear roll 1 will be described. explain,
Description of the front sprinkling pipe 5'is omitted.

As shown in FIG. 3, the water sprinkling pipe 5 of this embodiment is inclined so that both end portions 5c, 5c in the pipe axial direction are inclined so as to be lower than the central portion thereof. In the water spray pipe 5, the water spray pipe 5 was inclined at a predetermined angle θ (10 ° in this example) from the center to both ends to form a mountain shape.

FIG. 4 is a schematic cross-sectional view showing a sprinkling state from the sprinkling pipe. Water is sent from the tank 3 to the water supply port 5b of the sprinkling pipe 5 through the pipes 6 and 6a, and the sprinkling hole is formed. Water is sprinkled on the roll 1 from 5a. In the above-described gravity-type watering system, when the water level in the tank 3 is lowered, a space or "water level" is generated in the watering pipe 5 as described above. However, the water spray holes 5a are located in the lower part of the water spray pipe 5, and the water is distributed to all of the water spray holes 5a, and the water is discharged from any of the water spray holes 5a. Now, FIG. 5 shows a sprinkling state in the work of rolling on a slope, not on a flat surface, in a manner in which the axis of the roll 1 is inclined. As is clear from the figure, since the water sprinkling pipe 5 is formed in a mountain shape by inclining from the central portion toward both ends at a predetermined angle θ, the water sprinkling hole 5a near the roll end on the slope mountain side is formed. ′ Is also well filled with water, and water comes out from any of the water spray holes 5a.

FIG. 6 is a rear view of the sprinkler device for the hand guide roller according to the second embodiment of the present invention. As clearly shown in the figure, in the water sprinkling pipe 5 of the present embodiment, both end portions 5c, 5c in the pipe axis direction are inclined so as to be lower than the central portion thereof, and specifically, The water sprinkling pipe 5 was formed so as to be flat in the vicinity of the center thereof and to be inclined only at both ends 5c and 5c at a predetermined angle θ.

FIG. 7 is a cross-sectional view showing a state when the water level in the tank 3 of the water sprinkler shown in FIG. 6 is lowered and a "water level" is generated in the water sprinkling pipe 5 in a compaction work on a level ground. As in the case of FIG. 4, the water spray holes 5a are not
By being located at the lower part of the water, the water is spread to all the water spray holes 5a, and the water is discharged from any of the water spray holes 5a. FIG. 8 shows a sprinkling state in the work of rolling on an inclined surface in a manner in which the axis of the roll 1 is inclined, not on a flat ground. Since the sprinkling pipe 5 is flat near the center and is inclined at a predetermined angle θ from both ends 5c, 5c side, the sprinkling holes 5 near the end of the roll on the slope mountain side.
The a'is also sufficiently filled with water, and the water is discharged from any of the water spray holes 5a.

FIG. 9 is a rear view of the water spraying device for the hand guide roller according to the third embodiment of the present invention. As clearly shown in the figure, in the water sprinkling pipe 5 of the present embodiment, both end portions 5c, 5c in the pipe axis direction are inclined so as to be lower than the central portion thereof, and specifically, It was formed by inclining in an arc shape from the central part of the sprinkling pipe 5 toward both ends 5c, 5c.

FIG. 10 shows a compaction work on a level ground, and FIG.
It is sectional drawing which shows the state when the water level of the tank 3 of the water sprinkler shown in FIG. As in the case of FIG. 4, since the water spray holes 5 a are located at the lower part of the water spray pipe 5, all the water spray holes 5 a.
The water will spread to a, and the water will come out from any of the water spray holes 5a. FIG. 11 shows a sprinkling state in the work of rolling on an inclined surface in a manner in which the axis of the roll 1 is inclined, not on a flat ground. Since the sprinkling pipe 5 is inclined in an arc shape from its center toward both ends 5c, 5c, the sprinkling holes 5a 'near the roll end on the slope mountain side.
Also, the water is sufficiently distributed, and the water is discharged from any of the water spray holes 5a.

In each of the above embodiments, it is effective to position the water supply port 5b of the water sprinkling pipe 5 at the center of the water sprinkling pipe 5. Because, if this water supply port 5b is located at one end of the sprinkling pipe 5, the water supply port 5c
Is suitable for rolling on the slope mountain side, but conversely, for rolling on the slope valley side, the height position of the water supply port 5b may be lower than the position of the water spray hole 5a on the slope mountain side. This is because water may not reach the water spray holes 5a on the slope mountain side.

[0020]

As described above, according to the sprinkler for a compaction machine of the present invention described above, both end portions of the sprinkling pipe in the pipe axis direction are inclined so as to be lower than the central portion thereof. During the work of rolling the roll in a manner that the axis of the roll is inclined,
The water level in the tank has dropped, and "water level" has been reached in the sprinkling pipe.
Even if the water is generated, the water also spreads to the water spray holes near the end of the roll on the slope mountain side, and the water is supplied from all the water spray holes.

[Brief description of drawings]

FIG. 1 is a side view of a sprinkler device for a hand guide roller according to a first embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a rear view of FIG. 1.

FIG. 4 is a cross-sectional view schematically showing a sprinkling state on flat ground according to the first embodiment of the present invention.

FIG. 5 is a cross-sectional view schematically showing a sprinkling state on a slope of the first embodiment of the present invention.

FIG. 6 is a rear view of the sprinkler device for the hand guide roller according to the second embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view showing a sprinkling state on flat ground according to a second embodiment of the present invention.

FIG. 8 is a cross-sectional view schematically showing a sprinkling state on a slope of the second embodiment of the present invention.

FIG. 9 is a rear view of the sprinkler device for the hand guide roller according to the third embodiment of the present invention.

FIG. 10 is a cross-sectional view schematically showing a sprinkling state on flat ground according to a third embodiment of the present invention.

FIG. 11 is a cross-sectional view schematically showing a sprinkling state on a slope of the third embodiment of the present invention.

FIG. 12 is a side view of a conventional water spray device for a hand guide roller.

FIG. 13 is a rear view of FIG.

FIG. 14 is a cross-sectional view schematically showing a sprinkling state of a conventional sprinkler on a flat ground.

FIG. 15 is a cross-sectional view schematically showing a sprinkling state on a slope of a conventional sprinkler.

[Explanation of symbols]

1,1 '... roll 2 ... Airframe frame 3 ... Tank 5,5 '... Sprinkling pipe 5a ... Sprinkling hole 5b ... water supply port 5c ... end 6,6a, 6b ... Piping 7 ... cook 10… Sprinkler

─────────────────────────────────────────────────── ───Continued from the front page (56) References Kaihei Hei 3-72903 (JP, U) Jikho 44-30350 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) E01C 19/22-19/43 E01C 19/16 E01H 3/02

Claims (5)

(57) [Claims] 1. A tank mounted on a body frame, a water sprinkling pipe having a large number of water sprinkling holes for supplying water to a surface of a roll, and a pipe connecting a water discharge port of the tank and the water sprinkling pipe. A water sprinkling device for a compaction machine of a gravity sprinkling system, wherein both ends of the sprinkling pipe in the pipe axis direction are inclined so as to be lower than the central part thereof. 2. The water sprinkling apparatus for a compaction machine according to claim 1, wherein the water sprinkling pipe is formed by inclining the shape of the water sprinkling pipe from its center toward both ends at a predetermined angle. 3. The water sprinkling device for a compacting machine according to claim 1, wherein the water sprinkling pipe is formed so that the vicinity of the central portion thereof is flat and both end portions are inclined at a predetermined angle. 4. The water sprinkling device for a compaction machine according to claim 1, wherein the water sprinkling pipe is formed by inclining the shape of the water sprinkling pipe from its central portion toward both ends thereof in an arc shape. 5. The water sprinkling device for a compaction machine according to claim 1, wherein the water supply port of the water sprinkling pipe is located at the center of the water sprinkling pipe.