JPS625234Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a crushing blade used in a gravel rewashing machine.

(b) Problems to be solved by the conventional technology and the present invention
No. 24981 (Published in 1980, No. 128623) Improvements were made to the stirring blades (the crushing blades in this invention) used in gravel rewashing machines, making the crushing blades more robust and preventing dead stones, gravel, or mud. The material is guided into the gap between the toothed pieces and the protruding piece, and is crushed more finely and more efficiently while passing through.

(c) Means for solving the problem In accordance with the above-mentioned objectives, the present invention makes the head thicker than the body to make the crushing blade more robust, and also has a crushing blade on the back of the gravel rewashing machine. A recess into which the mounting plate fits is provided, and a bolt hole is provided in the center of the recess, and a tooth piece with a thin tip is provided on the edge of the body in the direction of rotation, spanning the front and back sides of the edge. On both the front and back surfaces of the tooth piece, there are provided ferrules that are thin in the direction of rotation, making it easier to guide gravel, dead stone, or mud between the tine pieces, thereby increasing crushing efficiency.

(d) Embodiments and operations The embodiments of the present invention will be explained below with reference to the drawings.

A in the figure is a crushing blade main body in which the head 1 is made thicker than the body 2.

3 is a recess formed on the back surface of the body 2 into which a mounting plate for a crushing blade in a gravel rewashing machine is fitted.

Reference numeral 4 denotes a bolt hole provided in the center of the recess 3, through which a bolt is passed and the crushing blade main body is bolted to the attachment plate of the crushing blade.

Reference numeral 5 denotes a tooth piece whose tip is thinly formed on the edge of the body 2 in the rotational direction and is stepped across the front and back sides of the body 2, making it easier to guide dead stones, mud, gravel, etc. between the tooth pieces. The material is crushed finely as it passes through the pipe.

Reference numeral 6 denotes a protruding piece formed on both the front and back sides of the head 1 with a thin wall in the direction of rotation, which, like the above, facilitates guiding dead stones, mud, and gravel to enhance the crushing effect.

Furthermore, it is possible to provide the crushing grooves 7 in steps in the rotational direction of the head 1 as in the embodiment shown in FIG. 3 of the drawings, or to provide the crushing grooves 7 at intervals on the upper surface of the head 1. A tooth piece with a thin tip may be installed on the edge opposite to the direction of rotation of part 2, but in any case, such a configuration makes it easier to guide gravel, mud, or dead stone, and it is fine and efficient. It allows for good crushing and does not change its function.

(e) Effect of the invention Since the invention is constructed as described above, the crushing blade according to the invention can be used in a gravel rewashing machine by incorporating a recess provided on the back side of the crushing blade body into the crushing blade mounting plate. After fitting the crushing blade and fixing it by tightening bolts using the bolt hole, if you operate the gravel re-washing machine, dead stones, mud, gravel, etc. will be guided between the tooth pieces that have a thin tip. It is crushed into fine pieces while passing through the water.

In addition, it is guided in the same manner as described above between the protrusions formed thinly in the direction of rotation on both the front and back surfaces of the head, and is crushed into small pieces.

However, in the present invention, since the head is made particularly thick, it has various effects such as being strong and able to be used for a long period of time.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the front side of the first embodiment of the present invention.
FIG. 2 is a perspective view of the back side of the same. FIG. 3 is a perspective view from the front side of a second embodiment of the present invention. In the figure, A is the crushing blade body, 1 is the head, 2 is the body, 3
is a recess, 4 is a bolt hole, 5 is a tooth piece, and 6 is a protrusion piece.

Claims (1)

[Scope of utility model registration request] A crushing blade body with a head thicker than the body, a recess on the back of the body into which a crushing blade mounting plate for a gravel rewasher fits, and a bolt hole in the center. A gravel recycling machine in which a tooth piece with a thin tip formed on the edge in the direction of rotation is stepped across the front and back sides of the edge, and a tooth piece with a thin tip formed on the side in the rotation direction is arranged on both the front and back sides of the head. A crushing blade used in washing machines.