JPH0421844Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a mud removal device for removing mud and the like adhering to the roller surface of a rolling press.

[Conventional technology]

As this type of conventional technology, for example,
The one described in Publication No. 62-3808 is known.

In this device, the end of a flat blade is brought into sliding contact with the roller surface of a rolling press, and as the roller rotates, mud and the like adhering to the roller surface are removed.

Since the blade is biased toward the roller surface by a spring or the like, it can still come into sliding contact with the roller surface even if the end portion is slightly worn.

[Problem that the invention attempts to solve]

However, in the conventional technology described above, in order to reduce the number of blade replacements, the blade is configured so that it can be extended in the direction of the roller when it becomes further worn, so it is difficult to install the mud removal device including the blade. The problem was that the space became too large.

In addition, since the blade was formed from a thin flat plate-like member, it was easy to break if it made strong sliding contact with the roller surface, and conversely, it was an unresolved problem that sufficient mud removal effect could not be obtained if it made weak sliding contact. The points were also hot.

This idea was developed by focusing on the problems of the conventional technology.The installation space is narrow, the number of blade replacements can be reduced, and the blade is attached to the roller surface in order to obtain a sufficient mud removal effect. An object of the present invention is to provide a mud removal device for a compaction machine that is not easily damaged even if it is brought into strong sliding contact.

[Means for solving problems]

In order to achieve the above object, the mud removal device for a rolling compaction machine of this invention has a shaft whose end is fixed to the frame of a rolling compaction machine and bolt holes are formed on the circumferential surface; The ridge angle is formed on the outer circumferential surface, and the shaft hole is fitted onto the wear shaft and has a gap between it and the shaft periphery, and a guide hole that reaches the shaft hole from the circumferential surface, and the ridge angle is a blade that slides into contact with the roller surface of the rolling compaction machine; a bolt that passes through the guide hole from the outside and is screwed into the bolt hole to attach the blade to the shaft; a head of the bolt and the guide hole; and a spring interposed between the blade and the roller to bias the blade toward the roller.

[Effect]

The blade is attached to the shaft by fitting the shaft into a shaft hole provided inside the blade, and by threading a bolt that passes through a guide hole on the outer circumferential surface of the blade from the outside into a bolt hole on the shaft circumferential surface. There is. In the attached state, the edge angle of the outer peripheral surface of the blade is in sliding contact with the roller surface of the rolling press.

In this state, when the roller of the rolling press rotates, a frictional force is generated between the roller surface and the edge angle of the blade. Then, pebbles, mud, etc. adhering to the roller surface are removed from this surface by the ridge angle of the blade.

Even if the edge angle of the sliding contact wears out due to frictional force, the spring interposed between the bolt and the guide hole biases the blade toward the roller surface, so the sliding contact of the edge angle of the blade will continue. The condition will be maintained.

If the edge is further worn and a sufficient mud removal effect cannot be obtained, remove the bolt and rotate the blade to bring the other unworn edge into sliding contact with the roller surface, and then remove the bolt again. By tightening the blade, you can once again thoroughly remove pebbles, mud, etc. without having to replace the blade.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the drawings.

1 to 3 show an embodiment of this invention.

Figure 1 is an explanatory diagram of the mud removal device of a rolling compact machine in which the present invention is implemented, seen from the bottom, Figure 2 is a side view of Figure 1, and Figure 3 is a cross-section of Figure 1 taken along line A-A. This is an enlarged view.

First, the configuration will be explained. That is, there is a rolling machine 1 that includes a roller 2 and a frame 3 that rotatably supports the roller 2, and this rolling machine 1 includes the following:
In addition to these rollers 2 and frame 3, there is also a power source (not shown), and the rolling machine 1 is driven by the driving force of this power source.
A known mechanism for moving the machine forward and backward is appropriately provided.

In addition, the frame 3 has brackets 4 and 5.
It is fixed with a plurality of bolts and nuts, and the ends of cylindrical shafts 6 and 7 extending in the axial direction of the roller 2 are fixed to the brackets 4 and 5 by welding or the like, respectively, so that the brackets are cantilevered. There is. Although these shafts 6 and 7 are attached at different locations, they have the same structure including their surroundings, so the shaft 6 will be explained in detail below, and the explanation about the shaft 7 will be omitted.

Two bolt holes 8 are provided in the side surface of the shaft 6 in parallel with each other in the axial direction, one of which is shown in FIG. 3 as a cross-sectional view.

That is, an iron blade 9 having a shaft hole 10 that can be externally fitted into the shaft 6 is attached so as to surround the shaft 6, and there is a gap between the outer surface of the shaft 6 and the inner surface of the shaft hole 10. There is a gap in between.

The blade 9 has a prismatic shape with a substantially square cross section, and has a ridge angle 11 at a position where the side surfaces are adjacent to each other.
a, 11b, 11c, 11d are formed,
The ridge angle 11a is in sliding contact with the surface 2a of the roller 2. Further, guide holes 12 are opened from four directions on the side surface of the blade 9 so as to overlap with the bolt holes 8 when the blade 9 is attached to the shaft 6, and reach the shaft holes 10.

A bolt 13 passes through the hole facing outward from the roller 2 among the four guide holes 12, and the tip of the bolt 13 is screwed into the bolt hole 8. In addition, the guide hole 1 through which the bolt 13 does not penetrate
A rubber cap 14 is fitted into each of the caps 2.

A spring 15 and a washer 16 are interposed between the head 13a of the bolt 13 and the guide hole 12, and the spring 15 urges the blade 9 toward the roller 2.

Note that, as described above, the configuration regarding the shaft 6 and its surroundings is the same for the shaft 7 as well.

Next, the operation of this embodiment will be explained.

In FIG. 2, when this rolling machine 1 rolls the road surface 20 while moving rightward, the pebbles, mud, etc. that adhere to the roller surface 2a during rolling are removed from the surface by the ridge angle 11a of the blade 9. removed from 2a. Therefore, even if the roller 2 rotates and the surface that has been subjected to rolling pressure once is again subjected to rolling pressure, the surface 2a
There are no pebbles, mud, etc. attached to the road surface, so there are no potholes or the like on the road surface.

Note that when the vehicle moves leftward in FIG. 2, the blade attached to the shaft 7 provides the same effect as described above.

Furthermore, even if the edge 11a is worn out due to the frictional force generated between the roller surface 2a and the edge 11a, the blade 9 is always urged toward the roller 2 by the spring 15, so that the sliding can maintain contact.

If further wear occurs and pebbles, mud, etc. cannot be removed sufficiently, remove the bolt 13.
By rotating the blade 9, the edge angle 11
b, 11c, and 11d are brought into sliding contact with the roller surface 2a. Then, as in FIG. 3, the guide hole 12 faces outward with respect to the roller 2.
The bolt 13 is passed through the hole 8, and the tip is screwed into the bolt hole 8, and the cap 1 is inserted into the other guide hole 12.
4, it is possible to sufficiently remove pebbles, mud, etc. without replacing the blade 9.
Therefore, the number of parts replacements can be reduced, and since the blade 9 is made of a prismatic member and the shaft 6 passes through it, it is less likely to be damaged, making it an economical mud removal device. We were able to.

Furthermore, since the sliding contact portion is renewed by rotating the blade 9, it can be installed in a limited narrow space, and inspection of parts can be reduced.

In the above embodiment, the blade is made of a prismatic member with a substantially square cross section, but the blade is not limited to this. For example, a prismatic member with a triangular or hexagonal cross section may be used. It is also possible to use
In addition to iron as in the above embodiment, other materials such as hard plastic and wood can also be used.

[Effect of idea]

As explained above, according to the mud removal device for a rolling compact machine of this invention, since it is configured to remove pebbles, mud, etc. from the roller surface using a blade having a plurality of ridge angles formed on the side surface, it is possible to It can be installed in confined spaces, reduces the number of times blades need to be replaced, and is less likely to be damaged even if the blades are in strong sliding contact with the roller surface to provide sufficient mud removal effect. can get.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the mud removal device of a rolling compact machine in which the present invention is implemented, seen from the bottom, Fig. 2 is a side view of Fig. 1, and Fig. 3 is a sectional view taken along the line A-A of Fig. 1. be. 1... Rolling machine, 2... Roller, 3... Frame, 6, 7... Shaft, 8... Bolt hole, 9...
...Blade, 10...Shaft hole, 11a, 11
b, 11c, 11d...edge angle, 12...guide hole,
13...Bolt, 15...Spring.

Claims (1)

[Scope of Claim for Utility Model Registration] A shaft whose end portion is fixed to a frame of a rolling compaction machine and has bolt holes formed on its circumferential surface, and a plurality of ridge angles continuous in the axial direction are formed on the outer circumferential surface, A blade having a shaft hole which is fitted onto the outer surface of the blade and has a gap between the blade and the peripheral surface of the shaft, and a guide hole which extends from the peripheral surface to the shaft hole, the ridge angle of which slides into contact with the roller surface of the rolling machine. a bolt passing through the guide hole from the outside and screwing into the bolt hole to attach the blade to the shaft; and a bolt interposed between the head of the bolt and the guide hole to attach the blade to the shaft. A mud removal device for a rolling press machine, comprising: a spring that biases toward a roller;