JPH0421845Y2 - - 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 roll 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 edge of a flat blade is brought into pressure contact with the roll surface of a rolling press, and as the roll rotates, mud and the like adhering to the roll surface are removed.

Since the blade is pulled and urged toward the roll surface by a spring or the like,
Even if the edge of the blade was slightly worn, it was always able to make sliding contact with the roll surface.

[Problem that the invention attempts to solve]

However, in the above conventional technology, when the blade is worn out, the blade is configured to be able to move so as to protrude in the roll direction, and the pressing force of the blade is obtained by a tension spring. Therefore, there was a problem in that the installation space for the mud removal device including the blade became large.

In addition, since the pressing force of the blade end against the roll surface is uniquely determined by the urging force of the spring, the pressing force can be adjusted without taking the trouble of replacing the spring. There was also the problem that it was not possible.

This invention was made by focusing on the problems of the conventional technology, and it can be installed in a limited narrow space, has a small number of parts, and is easy to install. An object of the present invention is to provide a mud removal device for a rolling press machine, which can easily adjust the pressing force against the roll surface.

[Means for solving problems]

In order to achieve the above object, the mud removal device for a rolling compaction machine of the present invention has an end fixed to the frame of the rolling compaction machine, and has bolt holes on the circumferential surface so as to face the circumferential surface of the roll of the rolling compaction machine. A flat blade having a through hole and whose blade end slides on the roll surface is attached to the shaft by a bolt that passes through the through hole and is screwed into the bolt hole, and the blade is connected to the shaft. An elastic body for pressing the blade against the roll peripheral surface is interposed between the blade and the head of the bolt, so that the pressing force of the blade can be adjusted by the bolt.

[Effect]

The blade is supported by an elastic body that is pressed against both sides of the blade and a bolt that passes through a through hole and is screwed into a bolt hole in the shaft, and the blade end is attached to the roll surface of the rolling machine. They are in pressure contact.

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

In addition, when the screwing state of the bolt into the bolt hole is changed, the position of the blade changes with the expansion and contraction of the elastic body, so by arbitrarily changing the screwing state of the bolt, the blade blade It is possible to adjust the pressing force of the end portion to the roll surface.

In this case, the edge of the blade is worn out and a sufficient mud removal effect cannot be obtained, or the dirt removal function of the mud removal device needs to be changed depending on conditions such as the type of road surface to be rolled. This problem can be easily dealt with by simply changing the screwing state of the bolt.

〔Example〕

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

Figures 1 to 3 show an embodiment of the present invention; Figure 1 is an explanatory diagram of the mud removal device of a rolling press machine in which the present invention is implemented, as seen from the bottom; FIG. 1 is a side view, and FIG. 3 is an enlarged cross-sectional view of FIG. 1 taken along line A--A.

First, the configuration will be explained. That is, there is a rolling machine 1 that includes a roll 2 and a frame 3 that rotatably supports the roll 2, and this rolling machine 1 includes the following:
In addition to these rolls 2 and frame 3, there is 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.

The ends of shafts 4 and 5 are fixed to the front and rear parts of the frame 3 by welding or the like so as to face the circumferential surface of the roll 2, respectively, so as to be cantilevered. Since these shafts 4 and 5 have the same configuration, the shaft 4 will be explained in detail below, and the explanation about the shaft 5 will be omitted.

Two bolt holes 6 are arranged in the axial direction and opened downward in the bottom surface of the shaft 4, and the periphery of one of them is shown in FIG. 3 as a sectional view.

That is, below the shaft 4, there is a flat iron blade having a through hole 8 which is a long hole extending in the forward and backward direction of the rolling mill 1, and whose blade end 7a is in pressure contact with the surface 2a of the roll 2. 7 is placed.
This blade 7 is attached by a bolt 9 that passes through a through hole 8 from below and whose tip is screwed into the bolt hole 6 of the shaft 4. At the outer periphery of the bolt 9, the shaft 4 and the blade 7 are connected. Between the blade 7 and the head 9a of the bolt 9, springs 11a and 11b having substantially the same spring force are provided with washers 10a and 10b, respectively.
It is interposed as an elastic body. In other words, blade 7
is elastically supported between the shaft 4 and the head of the bolt 9 by springs 11a and 11b. It is also possible to use other elastic bodies such as rubber in place of the springs 11a and 11b, as long as they are elastically supported in this way.

Note that, as shown in FIG. 3, the bolt 9 is not completely inserted into the bolt hole 6, but it is inserted to the extent that the blade end 7a of the blade 7 can be pressed against the roll surface 2a. ing.

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, pebbles, mud, etc. that adhere to the roll surface 2a during rolling are removed from the blade end 7a of the blade 7. is removed from surface 2a by. Therefore, even if the roll 2 rotates and the surface that has been rolled once is rolled again, 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 same effect as described above is obtained by the blade attached to the shaft 5.

When it is judged that it is not necessary to press the blade end 7a so strongly, for example, when rolling on a road surface where relatively soft mud or the like easily adheres to the surface 2a, the bolt 9 is screwed slightly shallowly. Leave it in that state. Then, the springs 11a and 11b, whose pressure has weakened, will stretch, and accordingly,
Since the position of the blade 7 is also slightly lower, the pressing force of the blade end 7a becomes smaller.

On the other hand, when it is determined that it is necessary to strongly press the blade end 7b, for example when rolling on a road surface where relatively hard pieces of asphalt etc. tend to adhere to the surface 2a, the bolt 9 is screwed slightly deeper. Leave it in that state. Then, the springs 11a, 11
The blade 7 attempts to move upward while contracting b, but since the blade end 7a is in contact with the surface 2a, the pressing force of the blade end 7a against the surface 2a increases.

In this way, depending on the condition of the road surface, etc., the blade end 7
By adjusting the pressing force a, sufficient pressing force can be obtained under various conditions, and since excessive force is not applied, wear on the blade end 7a can be minimized. Furthermore, even if there is a large manufacturing error in the parts, the springs 11a,
Since the error can be absorbed in 11b, the device can be easily assembled even in such a case.

Furthermore, even if the blade end 7a wears out to some extent, the spring pushes up the blade 7, so the blade end 7a can always be in contact with the surface 2a.
Even in the event of further wear, the blade 7 can be brought closer to the roll 2 by utilizing the fact that the through hole 8 is elongated in the forward and backward direction of the rolling machine.

Further, since the configuration of the above embodiment requires only simple members, the number of parts can be reduced, and it can be easily installed even in a limited narrow space.

In addition, in the above embodiment, the blade 7 is made of iron, but it is not limited to this.
For example, materials such as hard plastic or 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, the blade whose blade end is in pressure contact with the roll surface, the bolt that passes through this blade and is screwed into the shaft, and the shaft and blade are connected. Because it is supported by a spring interposed between the blade and the bolt head, it can be installed in a limited space, and the pressure of the blade end against the roll surface can be easily adjusted. This effect can be obtained.

[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. DESCRIPTION OF SYMBOLS 1... Rolling machine, 2... Roll, 3... Frame, 5... Shaft, 6... Bolt hole, 7... Blade, 7a... Blade end, 8... Through hole, 11
a, 11b... Spring (elastic body).

Claims (1)

[Scope of utility model registration request] A flat plate whose end is fixed to the frame of the rolling compaction machine, has bolt holes on its circumferential surface, faces the circumferential surface of the roll of the rolling compaction machine, has a through hole, and whose blade end slides on the surface of the roll. A shaped blade is attached to the shaft by a bolt that passes through the through hole and is screwed into the bolt hole, and the shaped blade is attached to the shaft between the shaft and the blade and between the blade and the head of the bolt. A mud removal device for a rolling press machine, characterized in that an elastic body is interposed to press the blade against the roll circumferential surface, and the pressure force of the blade can be adjusted by means of a bolt.