JP2002038410A - Rolling compaction vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a large-sized self-propelled rolling compaction vehicle improving construction capable of securing good rolling compaction performance in the case that a soft elastic mixture is used and performing the rolling compaction working of a necessary paving width by onetime working. SOLUTION: In the rolling compaction vehicle T providing a vibration device 30 on a running truck 10, the vibration device is provided with a rolling compaction plate 31 having a temperature regulating function and a vibrator 35 for vibrating the rolling compaction plate. The rolling compaction plate is attached to the running truck through a lifting and lowering device (lifting and lowering cylinder for rolling compaction plate 41) so as to be movable in the vertical direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling compact vehicle suitable for compacting a soft elastic mixture.

[0002]

2. Description of the Related Art An elastic pavement (hereinafter referred to as an "elastic pavement") mainly composed of a soft material such as waste rubber chips of rubber and a hard fine aggregate and kneaded and manufactured using a resin binder such as urethane resin. ) Is different from conventional hard pavement such as asphalt pavement or concrete pavement, and is expected to have various effects such as noise reduction and pavement damage caused by tire chains and the like because the pavement has elasticity. . Conventionally, when such an elastic pavement is constructed, the elastic mixture is spread on a roadbed or the like, and then the road surface is rolled using a tandem roller or a vibrating compactor (vibration compactor).

[0003]

However, the elastic mixture used for the elastic pavement is very soft due to the use of a soft material and a resin binder. Then, the elastic mixture is pressed in the traveling direction of the roller, and the boundary surface between the elastic mixture and the construction base is likely to be shifted, and the adhesive strength tends to decrease.
In addition, due to the occurrence of shear failure at the end of the pavement during steering operation, there is a problem that the pavement after compaction is damaged or a roller mark remains after compaction. .

Further, when rolling is performed using a vibrating compactor, the elastic mixture adheres to the rolling plate, resulting in irregularities on the surface of the rolling surface. In addition, since the device is small (the size of the compacting plate is about 35 cm × 50 cm), it is suitable for small-scale construction. However, when the construction area is large, the construction capacity is insufficient, and the degree of compaction varies. As a result, the flatness is impaired, which has a problem that the finished quality is adversely affected.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to secure good rolling performance when a soft elastic mixture is used. It is another object of the present invention to provide a large-sized self-propelled compacted vehicle with improved workability in which a required compacting work of a pavement width can be performed.

[0006]

According to a first aspect of the present invention, there is provided a rolling compact vehicle having a traveling bogie provided with a vibration device. ,
A pressure plate having a temperature control function and a vibrator for vibrating the pressure plate are provided, and the pressure plate is attached to the traveling vehicle via an elevating device so as to be movable in a vertical direction. It is characterized by being.

Therefore, according to the present invention, since the elastic mixture can be rolled by using the rolling plate, the adhesive strength is larger than that in the case where the rolling is performed by the tandem roller which has been conventionally used. Is obtained. Further, since the rolling plate has a temperature control function, the elastic mixture can be prevented from adhering to the rolling plate, and the flatness of the pavement can be improved.

According to a second aspect of the present invention, there is provided the rolling compact vehicle according to the first aspect, wherein an elastic member is interposed between the lifting / lowering device and the compacting plate. The pressure plate is supported by a string-shaped member or a band-shaped member suspended between the traveling vehicles. Here, the material of the elastic member is not particularly limited, but it is preferable to use a rubber member. Further, the string-shaped member or the band-shaped member may be a member having a predetermined strength and a predetermined length, and the string-shaped member may be a wire or the like, and the band-shaped member may be a band-shaped rubber member or the like. It is suitable.

Therefore, according to the present invention, since the elastic member is interposed between the lifting device and the rolling plate, when the rolling plate is installed on the pavement surface during the rolling operation, the rolling member is pressed. The impact acting on the pressure plate can be absorbed. Further, since the rolling plate is supported by a string-shaped member or a band-shaped member suspended between the traveling carriage, the rolling plate is movably supported by a margin length of the string-shaped member or the like. It has become. Therefore, even when the traveling vehicle performs the steering operation, it is possible to prevent the pressure plate from suddenly changing its direction. Therefore, gently and naturally, it is possible to change the direction of the compacting plate, and the elastic mixture is pressed in the traveling direction of the compacting plate, without causing a displacement at the boundary surface between the elastic mixture and the construction base. , Good rolling performance can be ensured.

Further, according to a third aspect of the present invention, in the compacted vehicle according to the first or second aspect, the length of the body frame constituting the traveling bogie can be expanded and contracted in the width direction. It is characterized in that the rolling plate is configured to be joined and separated freely.

Therefore, according to the present invention, the length of the body frame can be expanded and contracted in the width direction, and
Since the rolling plate is also configured to be joined and separated freely,
The width of the fuselage frame can be adjusted according to the width of the road on which the compaction is performed, and the width of the rolling plate can also be adjusted to correspond to the width of the fuselage frame. For this reason, it is possible to perform the necessary rolling work of the pavement width in a single operation, thereby improving the flatness of the pavement and improving the construction quality.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. In the following description, the front-back direction corresponds to the right-left direction in FIG. 1, and the left-right direction corresponds to the left-right direction in FIG.

As shown in FIGS. 1 to 6, the rolling compact vehicle T of the present invention has a configuration in which a vibration device 30 is provided on a traveling vehicle 10.

[Truck] As shown in FIGS. 1 to 3,
The traveling trolley 10 is capable of self-running, and includes a body frame 11 and
The vehicle body frame 11 includes wheels 12 mounted at four lower portions at both ends of a lateral member 11 a to be described later via a vehicle body frame 17. The vehicle body frame 17 is rotatably supported by a steering pin 23, and the wheels 12 are driven via a variable motor 13 with a reduction gear and a drive chain 14 attached to the vehicle body frame 17.
Can be driven.

The body frame 11 includes a lateral member 11a in the left-right direction, a lateral member 11b in the width direction, and the lateral member 11a.
a and an inner member 11c provided between the horizontal members 11b. The horizontal member 11b is a member having a rectangular hollow shape, and a second horizontal member 11b 'is inserted inside the hollow portion. The second horizontal member 11b 'is slid in the width direction by an expansion / contraction mechanism (not shown), so that the body length can be expanded and contracted in the width direction (see FIG. 6).

A steering cylinder 21 (hydraulic cylinder) for steering the wheels 12 is provided along the side member 11a. The cylinder rod 22 of the steering cylinder 21 is attached to one end of an arm 24, and the other end of the arm 24 is rotatably supported by a steering pin 23. The expansion and contraction of the cylinder rod 22 allows the body frame 17 to be changed to an arbitrary angle around the steering pin 23 through the rotation of the arm 24, so that the operation of the steering cylinder 21 and the rotation of each wheel 12 can be performed. By adjusting the speed,
Steering operation can be performed. In addition,
Body frame 1 of adjacent wheels 12 having the same rotation axis direction
7 are connected by tie rods 20 (see FIG. 3).

Further, a pair of wheel lifting cylinders 15
Are attached to the side member 11a in the vertical direction. The base end of the wheel lifting cylinder 15 is rotatably supported by the side member 11 a, and the tip of the cylinder rod 16 is attached to each support 18. The support 18 is supported by a bearing 19a (the rotation axis is in the vehicle width direction) and a steering pin 23a.
(The rotating shaft is in the vertical direction, and reference numeral 19 is a bearing stand). Thus, by extending the cylinder rod 16 of the wheel lifting cylinder 15, the support 18 and the vehicle body frame 17 can be rotated around the bearing 19a. Then, the direction of the steering pin 23 is changed from a vertical direction to an oblique direction,
The vehicle can be run with the wheels 12 in the front-rear direction being close to the inner side (see FIGS. 1 and 5).

In addition, on the upper part of the body frame 11, a generator 5 as a power source and various devices described below (the steering cylinder 21, the wheel lifting cylinder 15, the pressure plate lifting cylinder 41, etc.) are operated. A hydraulic unit 6,
Various devices necessary for operating the compacted vehicle T, such as the operation panel 7, are mounted.

[Vibration Device] The vibration device 30 includes a pressure plate 31.
And a vibrating body 35 for vibrating the rolling plate 31 as a main part. The rolling plate 31 is a steel bottom plate 32 (see FIG. 1) formed by raising the left and right ends upward in a side view and formed in a substantially boat shape, and an upper surface provided on the upper surface of the bottom plate 32. And a plate 33.
The lower surface of the bottom plate 32 is plated with chromium to prevent adhesion of the elastic mixture. Further, the bottom plate 32 can be maintained at a predetermined temperature (preferably 50 ° C. to 150 ° C.) by a temperature controller (not shown) provided on the upper surface side.

At a substantially central portion (side view) of the upper plate 33, four vibrators 35 are arranged at equal intervals in the width direction thereof.
The vibrating body 35 generates a vibrating force by rotating a vibrating shaft 35 a by a driving device (not shown), and can transmit the vibrating force to the rolling plate 31 (see FIG. 2).

Further, two elevating cylinders 41 (elevating devices) for the rolling plate are vertically mounted on each inner member 11c. The distal end of the cylinder rod 42 of the pressure plate lifting cylinder 41 is attached to the left and right ends (side view) of the upper plate 33, and the compression and contraction of the cylinder rod 42 allows the pressure plate 31 to be raised and lowered in the vertical direction. ing. Mounting members 37 and 46 are attached to the upper plate 33 and the cylinder rod 42, respectively.
A rubber member 44 (elastic member) formed in a ring shape is interposed (see FIG. 4).

Further, a substantially rectangular bracket 47 is attached to the lower surface of the body frame 11 in a direction (side view) for sandwiching the compaction plate 31.
7 is provided with a guide roller 48 via a support member 49. A rubber belt 51 (a belt-shaped member) is provided between the mounting member 50 protruding from the vertical portion of the bracket 47 and the mounting member 38 protruding from the left and right ends of the upper plate 33 by the guide rollers 48. Has been idle through. The rubber belt 51 has a length with a margin over a predetermined length.
1, the rolling plate 31 can be moved by an amount corresponding to the extra length.

Further, the rolling plate 31 can be joined to a separate rolling plate 31 'in accordance with a change in the width of the body frame 11, and the joined rolling plate 31' can be easily separated. It is configured to be able to. Accordingly, a separate exciter 35 'can be attached so that the exciter shaft 35a is coaxial (see FIG. 6).
The dimensions and the like of the separate rolling plate 31 'can be determined as appropriate.

(Method of Rolling Using Rolling Vehicle)
A method of compacting using the compacted vehicle T will be described.

○ Carrying in of the compacted vehicle The compacted vehicle T is carried in to the construction site, and if necessary, the work of expanding and contracting the body frame 11 in the width direction and the joining and separating work of the compaction plate 31 are performed to adapt to the road width. After the adjustment is performed, it is arranged at a predetermined position. At this time, the cylinder rod 16 of the wheel lifting cylinder 15 is in a contracted state.

As described above, the body frame 11 is configured to be able to expand and contract the frame length in the width direction.
In addition, since the rolling plate 31 is also configured to be freely joined and separated, the width of the body frame 11 is adjusted according to the width of the road on which rolling is performed, so as to correspond to the width of the body frame 11. The width of the rolling plate 31 can also be adjusted. Therefore, it is possible to perform the necessary rolling work of the pavement width in one operation.

The installation of the pressure plate The pressure plate 31 is lowered by operating the pressure plate lifting cylinder 41 and extending the cylinder rod 42, and the pressure plate 31 is placed on the pavement surface. At this time, since the rubber member 44 is interposed between the pressure plate lifting cylinder 41 and the pressure plate 31, the pressure plate 3 is placed on the pavement surface.
When installing 1, the impact acting on the rolling plate 31 can be absorbed.

Start of Rolling Work The vibrating body 35 is operated while the temperature of the rolling plate 31 is maintained at a predetermined temperature by a temperature adjusting device (not shown), and the rolling carriage 10 is driven by itself while rolling. The pressing operation of the elastic mixture is performed by the pressure plate 31 (see FIG. 1).

At this time, the rolling plate 31 is
Since it is supported by the rubber belt 51 suspended between the inner member 11c and the first inner member 11c, the pressure plate 31 is movably supported by the margin length of the rubber belt 51. Therefore, even when the traveling vehicle 10 performs a steering operation, it is possible to prevent the pressure plate 31 from suddenly changing its direction, and to change the direction of the pressure plate 31 slowly and naturally. Therefore, good rolling performance can be ensured. Further, since the rolling plate 31 has a temperature adjusting function, the contact surface between the rolling plate 31 and the pavement surface can be kept at a predetermined temperature, so that the elastic mixture is prevented from adhering to the rolling plate 31. It is possible to improve the flatness of the pavement.

End of Rolling Work After the end of the rolling work, the cylinder rod 42 of the lifting / lowering cylinder 41 for the rolling plate is extended so that the rolling plate 31
To raise the rolling plate 31 from the pavement surface. Then, the cylinder rod 16 of the wheel lifting cylinder 15 is extended, and the wheels 12 in the front-rear direction are brought close to each other, so that the wheels 12 are moved to a predetermined position (see FIG. 5).

When the compacted vehicle T is carried out of the construction site after the completion of the compacting operation, the steering cylinder 2
By operating the wheel 1 and rotating each of the wheels 12 facing in the traveling direction by 90 degrees, the wheels 12 can be turned in the width direction and run in the width direction to be mounted on a transport device such as a truck. Can be easily carried out (see FIG. 3).
(B)). In addition, the same procedure can be used to carry the compacted vehicle T to the construction site.

As described above, according to the present invention, the rolling plate 31
Can be used to compress the soft elastic mixture by using the vibrating device 30. Therefore, the reduction in the adhesive strength that occurs when the rolling operation is performed using the tandem roller, Generation can be prevented.

As described above, an example of a preferred embodiment of the present invention has been described. However, the present invention is not limited to the embodiment, and each component may be appropriately changed in design without departing from the spirit of the present invention. It is possible.

[0034]

According to the compacted vehicle of the present invention, it is possible to secure good compaction performance when a soft elastic mixture is used, and it is possible to reduce the required pavement width by a single operation. Since the rolling work can be performed, the workability can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a compacted vehicle according to the present invention.

FIG. 2 is a front view showing a compacted vehicle according to the present invention.

FIG. 3 (a) is a plan view of the compacted vehicle according to the present invention, in which a traveling bogie and a vibration device are partially omitted, and FIG. 3 (b) is a main part showing a case where wheels are rotated in FIG. FIG. 4 is an enlarged plan view.

FIG. 4 is a sectional view taken along line XX in FIG. 2;

FIG. 5 is an enlarged side view of a main part of the compacted vehicle according to the present invention during traveling.

FIG. 6 is a plan view showing a case where the body frame of the traveling bogie in the compacted vehicle of the present invention is extended in the width direction.

[Explanation of symbols]

 T Rolling vehicle 10 Traveling trolley 11 Body frame 12 Wheels 21 Steering cylinder 22 Cylinder rod 30 Vibration device 31 Pressure plate 32 Bottom plate 33 Upper plate 35 Vibrator 35a Vibration shaft 41 Lifting cylinder for lifting plate (elevating device) 42 Cylinder rod 44 Rubber member (elastic member) 48 Guide roller 51 Rubber belt (belt member)

Claims (3)

[Claims] 1. A rolling vehicle provided with a vibration device on a traveling vehicle, wherein the vibration device includes a pressure plate having a temperature control function, and a vibrator for vibrating the pressure plate. A rolling vehicle, wherein the rolling plate is attached to the traveling bogie via a lifting device so as to be movable in a vertical direction. 2. An elastic member is interposed between the elevating device and the pressure plate, and the pressure plate is supported by a string-shaped member or a band-shaped member suspended between the traveling vehicles. The compacted vehicle according to claim 1, wherein: 3. An airframe that constitutes the traveling bogie is configured such that its length is expandable and contractible in a width direction, and the rolling plate is configured to be splicable and separable. The compacted vehicle according to claim 1 or 2, wherein: