JPH0128091Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a bar feeder device that is installed in a leveling machine such as an asphalt finisher and feeds asphalt mixture from a hopper provided in the leveling machine to a road surface.

Generally, a leveling machine such as an asphalt finisher uses a bar feeder device to spread the asphalt mixture in a hopper attached to the front of the vehicle while the vehicle is running, using a bar feeder device to spread the asphalt mixture into a hopper installed at the rear of the vehicle. The asphalt mixture is sent to a screed, and the asphalt mixture is spread evenly on the road surface from side to side by the spreading screw, and is evenly spread by a screed.

The bar feeder device is installed along a conveying groove formed from the front to the rear of the traveling vehicle body, and is in contact with a drag pan attached to the body frame of the traveling vehicle body and the top surface of the drag pan. A moving conveyor bar is composed of a conveyor band constructed between two endless chains with a predetermined distance between them, and the asphalt mixture is conveyed by the conveyor bar on a drag pan from the front to the rear of the traveling vehicle body. It is.

By the way, in the conventional mounting structure of the drag pan, as shown in FIG. A through hole 5 is formed corresponding to the countersunk hole 2 and the through hole 5, and a countersunk bolt 6 is inserted from the upper part of the drag pan 1 by aligning the countersunk hole 2 and the through hole 5. At the same time, a nut 7 is inserted into the countersunk bolt 6 at the lower part of the support plate 4. is tightened. The bar feeder device can smoothly transport the asphalt mixture or the like transported by the transport bar over the upper surface of the drag pan without being affected by bolts or the like that attach the drag pan to the vehicle body frame.

However, in the above-mentioned drag pan mounting structure, it is extremely difficult to match the pitch of the countersink formed in the drag pan with the pitch of the through hole formed in the mounting part of the vehicle body frame when installing the drag pan. In addition, since there is a tunnel between the top surface of the drag pan and the vehicle body frame, it is not possible to tighten the countersunk bolts from above the drag pan, and the nuts must be tightened from below the mounting part. Therefore, since the installation work must be carried out from both the top and bottom, the installation work of the drag pan is very troublesome.

The purpose of this invention is to provide a barfeeder device such as a leveling machine that can easily attach a drag pan to a vehicle body frame.

In order to achieve the above object, this invention has a structure in which a plurality of fixing bolts, which are arranged on the underside of the drag pan in substantially parallel to the drag pan, are each fixed to the vehicle body frame as fixing pieces. .

Hereinafter, one embodiment of this invention will be described in detail with reference to the drawings.

3 and 4 show an asphalt finisher (leveling machine) 11 equipped with a bar feeder device according to this invention. As mentioned above, this asphalt finisher 11 is connected to the traveling vehicle body 12.
While the vehicle is running, the asphalt material put into the hopper 13 is sent by the bar feeder device 14 to the spreading screw 15 provided at the rear of the traveling vehicle body 12, and the asphalt material is spread onto the road surface by the spreading screw 15. The composite material is spread evenly on the left and right sides and is laid flat using a screed 16.

The bar feeder device 14 has one end exposed at the bottom of the hopper 13, and the bar feeder device 14
2 and is installed in a conveying groove 17 that is open at the front and rear surfaces of the traveling vehicle body 12, and consists of a drag pan 18 and a conveying belt 19 as shown in FIGS. 1 and 2. be. The drag pan 18 has a mounting portion 21 formed at a predetermined location on its lower surface that protrudes downward and has a screw hole 20 formed in the width direction of the drag pan 18, and is fixed in the screw hole 20 formed in the mounting portion 21. It is fixed to the vehicle body frame 23 by screwing the bolt 22 together and inserting a fixing piece 24 attached to the vehicle body frame 23 between the fixing bolt 22 and the drag pan 18. On the other hand, the conveyance belt 1
Reference numeral 9 has a plurality of conveyor bars 26 installed between two endless chains 25 with a predetermined distance between them. The endless chain 25 is wound around a sprocket (not shown) and driven so as to move from the front to the rear, and move away from the drag pan 18 below the drag pan 18 and move from the rear to the front of the vehicle body 12. It is designed to be activated by a device.

Next, the operation of the apparatus configured as described above will be explained.

In the above-described asphalt finisher 11, as in the conventional asphalt finisher, asphalt mixture is introduced into the hopper 13 by a dump truck or the like while the vehicle body 12 is running, and the asphalt mixture is transferred to the upper surface of the drag pan 18 by a conveyor bar. The asphalt is conveyed to the rear of the traveling vehicle body 12, spread evenly on the road surface from side to side by a spredding screw 15, and leveled by a screed 16 to perform asphalt paving.

By the way, the above asphalt finisher 11
In the manufacturing process, when attaching the drag pan 18 of the bar feeder device 14 to the vehicle body frame 23, the drag pan 18 is placed on the fixing piece 24 provided on the vehicle body frame 23, and the attachment portion 21 formed on the lower surface of the drag pan 18 is placed on the fixing piece 24 provided on the vehicle body frame 23. The fixing bolt 22 is screwed outward in the width direction of the drag pan 18 into the screw hole 20 of the drag pan 18, and the bolt 22 and the drag pan 18 are screwed together.
The fixing piece 24 is inserted between them. In the above state, the drag pan 18 is locked by the fixing piece 24 to prevent it from shifting or rising.

In addition, in the above embodiment, the description was given of a bar feeder device installed in an asphalt finisher, but the invention is not limited to this, and the same method can be applied to a bar feeder device installed in other machines such as a retriever. I can do it.

As explained in detail above, according to this invention, a mounting portion is provided on the lower surface of the drag pan in which a screw hole is formed almost parallel to the drag pan, and the fixing piece is fixed by a bolt screwed into the screw hole and the drag pan. By clamping, when attaching the drag pan to the vehicle body frame, there is no need to perform the troublesome work of matching the countersink formed in the drag pan with the through hole formed in the vehicle body frame.
Installation work can be easily done from below the drag pan. Therefore, there are advantages in that the work of installing the drag pan becomes simple and the work time can be shortened accordingly.

[Brief explanation of the drawing]

1 to 4 show one embodiment of this invention, in which FIG. 1 is a longitudinal sectional view of the bar feeder device according to this invention, FIG. 2 is a cross sectional view of the same, and FIG. A configuration diagram of an asphalt finisher equipped with a bar feeder device shown in FIGS.
4 is an enlarged perspective view of the hopper portion of the asphalt finisher shown in FIG. 3, and FIG. 5 is a sectional view showing a conventional bar feeder device. 11... Asphalt finisher (leveling machine), 14... Bar feeder device, 18... Drag pan, 19... Conveyance belt, 20... Screw hole, 2
1...Mounting part, 22...Fixing bolt, 23...
Vehicle body frame, 24...fixing piece, 25...endless chain, 26...transport bar.

Claims (1)

[Claim for Utility Model Registration] A drag pan attached to the body frame of a leveling machine such as an asphalt finisher, and a plurality of conveyor bars that move in contact with the top surface of the drag pan are fixed between two endless chains. In a bar feeder device such as a leveling machine, which consists of conveyor belts installed at intervals, and conveys objects such as asphalt mixture along the drag pan by a conveyor bar, the conveyor belt is installed at a position below the drag pan. is provided with a fixing piece that extends from the vehicle body frame toward the center of the drag pan and is fixed to the vehicle body frame, and the drag pan has a mounting portion protruding from a predetermined location on the lower surface of the drag pan in a direction substantially parallel to the lower surface of the drag pan. A bar feeder device for a leveling machine or the like, characterized in that the bar feeder device is attached to a vehicle body frame with the fixing piece interposed between the drag pan and a plurality of fixing bolts screwed together with the drag pan.