JPH025867Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a rotary perforated cylinder with both ends open in the machine frame in an inclined manner, and inside the perforated cylinder, one end is connected to the machine frame and the other end is connected to the machine frame. A rotary shaft with a crushing rod supported on the arm is inserted, and the clod thrown into the porous cylinder rotating at low speed from the opening at the upper end of the slope is crushed by the high speed rotation of the crushing rod, and the crushed soil is transferred to the porous cylinder. The soil crusher is designed to sort and fall from the surrounding wall of the earth, and to discharge large foreign objects through the opening on the slanted lower end of the perforated cylinder.
In particular, the present invention relates to an improvement in the bearing structure on the inclined upper end side of the rotating shaft.

[Prior art and its problems] The conventional bearing structure on the inclined upper end side of the rotating shaft is as follows:
For example, as shown in Japanese Utility Model Publication No. 59-2840, open end face arms are stretched across the slanted upper end side of the perforated cylinder in a cross shape, and the slanted upper end of the rotating shaft is placed at the intersection center of the cross arms. Therefore, in such a structure, the space between the arms serves as the introduction port for the clod.
With this kind of structure, the cross-shaped arms rotate together with the perforated cylinder, which results in the arms blocking the input of the clod from entering the perforated cylinder.
Therefore, there is the disadvantage that the clod stagnates at the entrance of the perforated tube, reducing the crushing efficiency.Furthermore, the impact when the clot is crushed by the crushing rod is transmitted to the perforated tube via the arm. There was a problem of damaging the perforated cylinder and related interlocking mechanism.

As a means to solve such problems, Jikosho
As shown in the crusher of Publication No. 59-24364,
The inclined upper end of the rotating shaft whose inclined lower end is supported on the machine frame is supported on the wall surface of the hopper, and a screw conveyor is provided which forcibly conveys the clod put into the rotating shaft part in the hopper area in the direction of the perforated cylinder. It has been proposed that the tube be provided with a hole to smoothly supply the clod to the porous tube. According to this soil crusher, the problems of the soil crusher shown in the above-mentioned Japanese Utility Model Publication No. 59-2840 can be solved, but the crushing impact caused by the crushing rod is transmitted to the hopper via the rotating shaft, and this impact is further Since the width is increased and transmitted to the machine frame, in order to prevent this, it is necessary to make the hopper structure strong, and the connection structure between the hopper and the machine frame also needs to be devised. However, there are economic issues such as increased costs for soil crushers.

The purpose of this invention is to improve the bearing structure of the rotary shaft with the crushing rod on the input side, that is, on the upper end of the slope.
In order to facilitate the entry of clod into the porous cylinder,
It is also an attempt to rationally eliminate the adverse effects on porous cylinders and the like due to the impact of the crushed earth.

[Means for Solving the Problems] The configuration of the present invention which solves the problems of the prior art is that a multi-hole cylinder in an inclined position with both ends open is mounted on a machine frame, and a bottom part is attached to the opening on the inclined upper end side of the perforated cylinder. A hopper which is inclined toward the inner bottom end of the perforated cylinder is communicated, and a hopper is placed inside the perforated cylinder along the central axis of the perforated cylinder, with the lower inclined end side facing the machine frame and the upper inclined end side facing the machine frame. In an earth crusher in which a rotating shaft having a crushing rod bearing a bearing on an arm is inserted and disposed, the arm has a single structure, and the outer upper end side of the arm 10 is fixed to the machine frame, and this fixed upper end 10a and Bearing lower end portion 10 that supports the above-mentioned rotating shaft
The arm portion 10c between the hopper and the arm portion 10c is formed substantially parallel to the sloping bottom portion of the hopper, and the arm portion 10c is inserted into the porous cylinder, so that a porous hole is formed between the slanted bottom portion of the hopper and the arm portion 10c. It is characterized by forming a lump soil introduction space 15 larger than the radius of the cylinder.

[Embodiment] Next, details of an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal side view, and FIG. 2 is a partially omitted side view of the same.

Machine frame 1 is open at both ends and has numerous screening holes 2 around its outer circumference.
A perforated cylinder 3 with facing the outlet end 7 of the hopper 6 which is tilted downward, and inside the perforated tube 3, along its central axis, the inclined lower end is supported on the machine frame 1, and the inclined upper end is supported on the arm. A rotating shaft 8 is inserted through the rotating shaft 8, and crushing rods 9 are provided radially on the rotating shaft 8. To explain the bearing means on the inclined upper end side of the rotating shaft 8, the bottom 5 of the hopper 6
The upper end 10a of the arm 10 consisting of a single structure is fixed to the machine frame portion 1a facing the arm 1.
0 is inserted into the porous cylinder 3, and the inclined upper end of the rotary shaft 8 is supported on the lower bearing end 10b via a bearing member 11,
On the other hand, the arm portion 10c between the fixed upper end portion 10a and the bearing lower end portion 10b of the arm 10 is formed approximately parallel to the inclined bottom 5 of the hopper 6, and the arm portion 10c is formed between the bottom 5 surface and the arm portion 10c. A lump soil introducing space 15 larger than the radius of the porous cylinder 3 is formed.

In the figure, 12 is a drive mechanism for the porous tube 3, and 13 is a drive mechanism for the porous tube 3.
1 is a drive mechanism for the rotating shaft 8, and 14 is a foreign matter collection chute.

[Explanation of action] The clot fed into the hopper 6 is placed at its bottom 5.
Due to the downward inclination of the perforated cylinder 3, the soil is introduced into the perforated cylinder 3 which is rotating at a low speed from the opening on the sloped upper end side of the perforated cylinder 3, that is, the clod introduction space 15, and the introduced clod is introduced into the crushed earth rod which rotates at a high speed together with the rotating shaft 8. 9, the crushed soil falls through the sorting hole 2 of the perforated cylinder 3, and the foreign matter is collected through the chute 14 from the opening at the inclined lower end of the perforated cylinder 3.

[Effects of the Invention] As described above, according to the configuration of the present invention, the following effects can be obtained.

The lower end of the bearing of a single-structure arm is pivotally supported on the inclined upper end of the rotating shaft, and the outer upper end of the arm is fixed to the machine frame, and the arm between the fixed upper end of the arm and the lower end of the bearing is attached to the hopper. When the hopper is formed substantially parallel to the sloping bottom, the arm portion 10c is inserted into the perforated cylinder, and a space for introducing lump soil larger than the radius of the perforated cylinder is formed between the slanted bottom of the hopper and the arm. Therefore, (a) Unlike the conventional technology, the loaded soil does not stagnate at the entrance of the porous tube and reduce the soil crushing efficiency.

(b) Unlike conventional technology, the impact generated when crushing soil by a crushing rod is not transmitted to the perforated tube or hopper, causing damage to these, and the impact is transmitted to the strong machine frame, so Negative effects can be easily eliminated and soil crushing efficiency can be improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view, and FIG. 2 is a partially omitted side view of the same. 1... Machine frame, 2... Sorting hole, 3... Perforated tube, 5
... Inclined bottom, 6 ... hopper, 7 ... hopper outlet end, 8 ... rotating shaft, 9 ... crushing rod, 10 ... arm, 10a ... fixed upper end of arm, 10b ...
... Arm bearing lower end, 10c... Arm part, 1
1...bearing member, 15...clump introduction space.

Claims (1)

[Scope of Claim for Utility Model Registration] A perforated cylinder in an inclined position with both ends open is mounted on a machine frame, and a hopper is provided at the opening on the inclined upper end of the perforated cylinder, the bottom of which is tilted toward the inner bottom end of the perforated cylinder. At the same time, a rotary shaft having a crushing rod is inserted into the perforated cylinder along the central axis thereof and whose slanted lower end side is supported by the machine frame and whose slanted upper end side is supported by the arm. In the earth crushing machine, the above-mentioned arm has a single structure, and the outer upper end side of the arm 10 is fixed to the above-mentioned machine frame. The arm portion 10c is formed substantially parallel to the sloping bottom of the hopper, and the arm portion 10c is inserted into the perforated cylinder, and a radius larger than the perforated cylinder is formed between the slanted bottom of the hopper and the arm portion 10c. An earth crusher characterized in that a clod introducing space 15 is formed.