JP4034127B2 - Paving material leveling equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a leveling device for leveling a paving material such as concrete.
[0002]
[Prior art]
Conventionally, in order to construct a continuous pavement structure having the same cross section, such as a runway or a road, a slip form method for forming a pavement material such as concrete into a predetermined shape is known.
In this slip form method, the pavement material supplied from a transport vehicle such as a dump truck is spread on the construction surface by a construction machine such as a backhoe, and the pavement material is spread using a molding machine (slip form paver). It is molded into a predetermined cross-sectional shape.
[0003]
The molding machine used in this slip form method is a self-propelled carriage having crawler traveling bodies in the front, rear, left and right, and a spread leveling device provided on the carriage and laying a pavement material in a predetermined cross-sectional shape, It is comprised.
The spread leveling device consists of a diffusion auger that spreads the pavement material in the left-right direction, approximately perpendicular to the pavement construction direction, a gate that adjusts the supply of the pavement material sent to the rear, a vibrator that vibrates the pavement material, and a pavement. And a mold plate for pressing the material. Further, the molding machine is provided with a collection beam for performing horizontal finishing of the pressed pavement material and a super smoother for performing vertical finishing.
[0004]
Then, the pavement is continuously spread and leveled by building the pavement structure by running the cart while operating the leveling device.
[0005]
[Problems to be solved by the invention]
By the way, when a pavement structure is constructed using such a molding machine, the cross-sectional width of the pavement structure that can be constructed is the width of a spread leveling device (machine basic width) that is substantially the same as the width of the diffusion auger or mold plate. ).
Then, if the required cross-sectional width (construction width) of the pavement structure is the same, it is possible to form the paving material continuously, but if the construction width changes during the molding, A molding machine cannot be used, and each time a molding machine suitable for the construction width must be prepared and installed on the pavement construction surface. The installation of this molding machine takes a lot of man-hours, and there is a problem in that the working efficiency is greatly reduced.
[0006]
Therefore, in view of the conventional problems as described above, the present invention provides a molding machine in a slip form method that can easily cope with a plurality of construction widths, and in particular, a paving material leveling device used therefor. With the goal.
[0007]
[Means for Solving the Problems]
Therefore, the invention according to claim 1 applies vibration to the auger that spreads the pavement material supplied to the pavement construction surface in the left-right direction substantially orthogonal to the pavement construction direction, and the pavement material spread by the auger. In a paving material leveling device comprising a vibrator and a mold plate that presses the paving material that is vibrated by the vibrator, from both ends of the auger, vibrator and mold plate in the left-right direction, The plate surface is substantially parallel to the pavement construction surface at the same height as the lower surface of the mold plate so as to cover the upper part of the pavement construction surface up to a pair of frame members installed in advance on the ground according to the construction width. A plate-like widening member extending on the surface is detachably provided.
[0008]
According to such a configuration, by attaching the widening member to the spread leveling device, the upper part of the pavement construction surface is covered from the machine basic width to the frame material . As a result, the paving material spread outward from the machine basic width by the auger is leveled by the vibrator and mold plate without overflowing upwards, so that not only the machine basic width but also the construction width larger than the machine basic width It becomes possible to construct a pavement structure.
[0009]
And, by simply attaching and detaching the widening member to the leveling device, the construction width can correspond to both the machine basic width and the width larger than the machine basic width, so the switching work can be easily done in a short time. Become.
The invention according to claim 2 is an auger that spreads the pavement material supplied to the pavement construction surface in the left-right direction substantially orthogonal to the pavement construction direction, a vibrator that vibrates the pavement material spread by the auger, A mold plate that presses the pavement material that is vibrated by the vibrator, and a substantially L-shaped first partition member that suppresses the pavement material from being spread to the axial end of the auger. And
The first partition member includes a front member extending in a direction substantially parallel to the auger in front of the auger in a pavement construction direction, and a side surface extending in a substantially perpendicular direction so as to straddle the auger. And a member.
[0010]
According to this configuration, by attaching the first partition member to the leveling device, the paving material is not spread outward from the side member of the first partition member during the auger operation. As a result, the paving material is spread and leveled to a width smaller than the machine basic width, so that it is possible to construct a pavement structure having a construction width smaller than the machine basic width as well as the machine basic width.
[0011]
The invention according to claim 3 further includes a plate surface extending to the mold plate along substantially the same plane as the side member while being positioned rearward in the pavement construction direction of the side member, and a lateral pavement in the vicinity of the vibrator. A second partition member that suppresses spreading of the material is provided.
According to such a configuration, by providing the second partition member in the leveling device, the pavement material does not spread outward from the side surface portion of the first partition member even behind the first partition member, and the machine basics It is possible to more reliably construct a pavement structure having a construction width smaller than the width.
[0012]
The invention according to claim 4 is characterized in that at least one of the first partition member and the second partition member is detachably provided.
According to such a configuration, the construction width can correspond to both the machine basic width and the width smaller than the machine basic width by simply detaching and attaching the first partition member and the second partition member to the leveling device. The switching operation can be easily performed in a short time.
[0013]
The invention according to claim 5 is characterized in that the second partition member is provided so as to be movable in a substantially vertical direction.
According to such a configuration, only by moving the second partition member in the vertical direction, it is possible to cope with both the case where the construction width is the same as the machine basic width and the case where the construction width is smaller than the machine basic width. It becomes possible easily in a short time.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
First, a first embodiment of a paving material leveling apparatus according to the present invention will be described.
As shown in FIGS. 1 and 2, the molding machine having the spread leveling apparatus of the present embodiment is provided on a self-propelled carriage 2 having crawler traveling bodies 1 on the front, rear, left and right, and the carriage 2, And a leveling device 3 for leveling a paving material on the width.
[0015]
The spread leveling device 3 is provided with a diffusion auger 4, a gate 5, a vibrator 6, and a mold plate 7 in order from the front. Further, the molding machine is provided with a collection beam 8 and a super smoother 9 behind it.
The diffusion auger 4 is provided so as to extend to the full width in the left-right direction substantially orthogonal to the pavement construction direction (traveling direction) of the spread leveling device 3, and rotates to pave the pavement taken in from the front in the left-right direction. Spread out. The gate 5 is a flat plate, and adjusts the supply amount of the paving material sent to the rear. The vibrator 6 vibrates and leveles the pavement material sent to the rear of the gate 5, and the mold plate 7 is a plate material provided horizontally to fill the width of the spread leveling device 3 substantially in the left-right direction. 6) Press the pavement material that was vibrated and leveled, and level it.
[0016]
Furthermore, the plate surface extends on a surface substantially parallel to the pavement construction surface at substantially the same height as the lower surface of the mold plate 7, and from both sides of the diffusion auger 4, the gate 5, the vibrator 6 and the mold plate 7 in the left-right direction. A pair of plate-like widening plates 10 extending outward are detachably provided on the leveling device 3 with bolts or the like.
When a paving structure is constructed using the molding machine having such a configuration, the paving material is diffused by moving the molding machine on the paving construction surface by the crawler traveling body 1 while operating the molding machine. The paving material spread in the left-right direction by the auger 4 and passed through the gate 5 is leveled by the vibrator 6 and the mold plate 7, and the horizontal and vertical surface finishes are obtained by the collection beam 8 and the super smoother 9. Done. As a result, the pavement material is spread between a pair of frame members 11 previously set on the ground according to the construction width W1, and a continuous pavement structure with the construction width W1 is constructed by running the carriage. Is done.
[0017]
Here, when it is necessary to increase the construction width W1 during the formation of the pavement material, the widening plate 10 is attached to both sides of the molding machine, and the pavement material is similarly formed (see FIG. 2).
Since the machine basic width W0 which is the width of the spread leveling device does not change, a gap is formed between the frame material 11 and the spread leveling device 3 installed in advance according to the interval of the increased construction width W1. Since the upper surface of the gap is covered by the plate 10, the pavement material does not overflow upward from this gap when the pavement material is leveled. Further, a cylinder 12 for moving the widening plate 10 downward is provided. By moving the cylinder 12 downward, the pavement material outside the mold plate 7 is also pressed. In this manner, a paved structure having a large construction width W1 is constructed between the frame members 11.
[0018]
In addition, since this widening plate 10 can be attached or detached easily with a volt | bolt etc., when it is necessary to switch the construction width W1 in the middle of shaping | molding of a pavement material, the preparation can be performed in a short time.
Further, if the widening plate 10 having several kinds of widths is prepared in advance, the widening plate 10 is selected according to the construction width W1 and attached to the spreader 3 so that the construction width W1 needs to be switched a plurality of times. Even if it is possible to respond.
[0019]
Next, a second embodiment of the paving material leveling apparatus according to the present invention will be described.
The molding machine having the spread leveling device of the present embodiment is the same as the molding machine of the first embodiment, but the first partition plate 13 is used instead of the widening plate 10 as shown in FIGS. And it has the 2nd partition plate 14, and is comprised.
As shown in FIG. 5, the first partition plate 13 is located in front of the diffusion auger 4 in the pavement construction direction so that the plate surface extends in a direction substantially parallel to the diffusion auger 4, and straddles the auger. A substantially L-shaped member including a side surface member 13b having a plate surface extending in a substantially perpendicular direction, and is detachably attached to the outer wall 15 and the gate 5 of the spread leveling device 3 by bolts or the like. Yes.
[0020]
On the other hand, the second partition plate 14 is a member whose plate surface extends to the mold plate 7 along substantially the same surface as the side member 13b while being positioned behind the side member 13b in the pavement construction direction, as shown in FIG. Thus, it can be moved up and down by a lifting device 16 such as a cylinder.
When forming the pavement structure using the molding machine having such a configuration, when the first partition plate 13 is removed and the second partition plate 14 is moved upward, molding is performed. As in the embodiment, a pavement structure having a construction width W2 identical to the machine basic width W0 is constructed.
[0021]
Here, in the case of reducing the construction width W2 during the formation of the pavement material, the first partition plate 13 is spread and attached to the leveling device 3, the second partition plate 14 is moved downward, and then the pavement material is similarly used. Molding is performed.
In this way, the pavement material spread by the diffusion auger 4 is not spread by the first partition plate 13 outward in the left-right direction, and the diffusion partition auger 3 by the second partition plate 14. Even in the vicinity of the rear vibrator 6, the pavement material does not overflow outward from the second partition plate 14, so that a pavement structure having a construction width W 2 that is smaller than the width W 0 of the spreader 3 is constructed.
[0022]
The first partition plate 13 can be easily attached / detached with a bolt or the like, and the second partition plate 14 can be moved up and down by a lifting / lowering device 16 such as a cylinder. When switching the construction width W2, preparation can be performed in a short time.
In addition, if these 1st partition plates 13 can be attached to not only one place but arbitrary places, and the 2nd partition plate 14 is matched with the position of the 1st partition plate 13, and it can move in the width direction, Even if it is necessary to switch the construction width to several types, it is possible to cope.
[0023]
Moreover, it is good also as a structure which can provide both the widening plate 10 of 1st Example explained in full detail above, and the 1st partition plate 13 and 2nd partition plate 14 of 2nd Example. Thereby, it becomes possible to cope with either a case where the construction width is enlarged or a case where the construction width is reduced during the formation of the paving material.
Further, the widening plate 10 of the first embodiment and the first partition plate 13 and the second partition plate 14 of the second embodiment may be spread and provided not only on one side in the horizontal direction of the leveling device 3 but also on both sides. Thereby, the construction width can be changed larger or smaller.
[0024]
【The invention's effect】
As described above, according to the invention described in claim 1, the applicable construction width of the spread leveling device used in the slip form method can be easily changed greatly from the normal, and the switching can be performed in a short time. Therefore, even when the construction width is largely changed on the way, an efficient pavement structure can be constructed.
[0025]
According to the second and third aspects of the present invention, the applicable construction width of the spread leveling device used in the slip form method can be changed to be smaller than usual, so that it is possible to cope even when the construction width is changed to a small value on the way. Become.
According to invention of Claim 4 and 5, since it becomes possible to switch in a short time when changing the construction width which can be accommodated of the spread leveling apparatus used for the slip form method, the construction width is changed small in the middle. Even in this case, an efficient paving structure can be constructed.
[Brief description of the drawings]
FIG. 1 is a plan view showing a structure of a molding machine having a spread leveling device in a first embodiment of the present invention.
FIG. 2 is a front view showing the structure of a molding machine having a spread leveling apparatus in the first embodiment of the present invention. FIG. 3 shows the structure of a molding machine having a spread leveling apparatus in the second embodiment of the present invention. FIG. 4 is a front view showing a structure of a molding machine having a spread leveling device in a second embodiment of the present invention. FIG. 5 is a structural view showing details of a mounting portion of a first partition plate. Fig. 6 is a plan view, Fig. 6B is a front view. Fig. 6 is a structural diagram showing details of a mounting portion of the second partition plate, Fig. 6A is a left side view, Fig. 6B is a front view
3 Spreading leveling device 4 Diffusion auger 6 Vibrator 7 Mold plate 10 Widening plate 13 First partition plate 13a Front member 13b Side member 14 Second partition plate

Claims (5)

An auger that spreads the pavement material supplied to the pavement construction surface in the left-right direction substantially orthogonal to the pavement construction direction, a vibrator that vibrates the pavement material spread by the auger, and vibrations applied by the vibrator In a paving material leveling device comprising a mold plate for pressing the paving material,
It is substantially the same as the lower surface of the mold plate so as to cover the upper side of the pavement construction surface from the left and right ends of the auger, vibrator and mold plate to a pair of frame members previously set on the ground according to the construction width. A pavement leveling device characterized in that a plate-like widening member is provided detachably at a height which extends on a plane substantially parallel to the pavement construction surface. An auger that spreads the pavement material supplied to the pavement construction surface in the left-right direction substantially orthogonal to the pavement construction direction, a vibrator that vibrates the pavement material spread by the auger, and vibrations applied by the vibrator A mold plate that presses the pavement material, and a substantially L-shaped first partition member that suppresses the pavement material from being spread to the end of the auger in the axial direction.
The first partition member includes a front member extending in a direction substantially parallel to the auger in front of the auger in a pavement construction direction, and a side surface extending in a substantially perpendicular direction so as to straddle the auger. And a paving material leveling device. A second partition that is positioned behind the side member in the pavement construction direction and has a plate surface extending to the mold plate along substantially the same surface as the side member to suppress spreading of the left and right pavement material in the vicinity of the vibrator. The pavement material leveling apparatus according to claim 2, further comprising a member. The paving material leveling apparatus according to claim 2 or 3, wherein at least one of the first partition member and the second partition member is detachably provided. The paving material leveling apparatus according to claim 3, wherein the second partition member is provided so as to be movable in a substantially vertical direction.

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