JPH0532195Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention has a plurality of blade pieces protruding from a disc-shaped blade plate in the circumferential direction, and a front side of the blade piece in the direction of rotation. This invention relates to a structure for attaching a crushing blade to a blade piece in a crusher that crushes paper, etc. by rotating an impeller having a crushing blade on its edge.

[Conventional technology]

As shown in FIG.
A notch d is provided in a part of the side edge of the blade c that is forward in the direction of rotation of the blade, and a plurality of screw holes e with bottoms are provided on the side of the notch d, and a crusher having a shape that can be stored in the notch d is provided. The screw hole e penetrates through the blade f in the direction of rotation of the impeller b and is provided on the surface side of the crushing blade f.
A mounting hole i having an enlarged recess h deep enough to accommodate the head of the bolt g screwed into the crushing blade f so that the upper surface of the head does not protrude laterally from the surface of the crushing blade f is provided, and the bolt g is inserted from the surface of the crushing blade f. A type to which a crushing blade f is attached is used.

[The problem that the idea attempts to solve]

However, in the case of the attachment structure a of the crushing blade to the blade piece in the conventional crusher, the impeller b is rotated at high speed, and the crushing blade f attached to the impeller b is used to crush solid materials such as newspaper or corn. However, as the solid object violently collides with the head of the bolt g housed in the enlarged recess h provided in the crushing blade f, this impact force causes the bolt g for attaching the crushing blade f to pulverize.
It is difficult to remove the bolt g for attaching the crushing blade f because it is rotated in the direction of tightening, and the bolt g for attaching the crushing blade f is sewn due to frictional heat, or the recess in the head of the bolt g into which the hexagonal wrench is inserted is deformed. However, there is a problem in that it takes a long time to replace the crushing blade f, and the crushing blade f is made of stainless steel with Stellite k fixed around the entire corner of the surface of the base j, as shown in Fig. 6. However, there were problems in that it was difficult to manufacture the attachment hole i between the frame-shaped stellites k in the crushing blade f, and the strength was weakened.

Therefore, the present invention prevents solid objects such as newspapers from directly colliding violently with the head of the screw for attaching the support member, so there is no possibility that the bolt will be rotated in the tightening direction or the bolt will seize due to frictional heat. , the mounting bolt can be easily removed without causing problems such as deformation of the recess into which the hex wrench is inserted in the bolt head, and the crushing blade can be replaced easily and in a short time. Another object of the present invention is to provide a structure for attaching a crushing blade to a blade in a crusher, which is easy to manufacture and can be made strong.

[Means to solve the problem]

In order to achieve the object of the present invention, a plurality of blade pieces are provided protruding in the circumferential direction of a disc-shaped blade plate, and a crushing blade is provided on the front side edge of the blade piece in the rotational direction. This is a structure for attaching a crushing blade to a blade piece in a crusher that crushes paper, etc. by rotation of an impeller; a support member having a substantially L-shaped cross section consisting of an upper wall and a side wall; a crushing blade attached to the outer surface of the side wall of the support member; a screw hole provided on the upper surface of the blade piece, and a support member located at a position that coincides with the screw hole; A mounting hole is drilled in the upper wall, and by inserting a bolt, screw, etc. through the mounting hole on the outer surface of the support member and screwing it into the threaded hole in the blade piece, the front part of the blade piece of the impeller in the direction of rotation can be fixed. A mounting means that allows the support member to be detachably attached to the side edge part; a positioning pin is protruded from one surface of the contact surface between the outer surface of the support member side wall and the inner surface of the crushing blade; This enables positioning by drilling a positioning hole that receives the pin, a screw hole with a bottom is provided on the inner surface of the crushing blade, and a through hole is drilled in the side wall of the support member at a position that matches the screw hole. By inserting bolts, screws, etc. through attachment holes on the inner surface of the support member and screwing them into the screw holes of the crusher blade, the crusher blade can be detachably attached to the outer surface of the side wall of the support member. This is what we aim to provide.

[Effect]

As described above, according to the attachment structure of the crushing blade to the blade piece of the crusher of the present invention, the tip of the positioning pin of the auxiliary attachment means is inserted into the positioning hole, and the inner surface of the crushing blade is attached to the outer surface of the side wall of the support member. After abutting and positioning, the crushing blade is attached to the outer surface of the side wall of the support member by inserting a bolt or screw etc. through the through hole in the side wall of the support member and screwing it into the screw hole on the inner surface of the crushing blade. Cross section abbreviated L
With the support member of the mold in contact with the inner surface of the blade from the upper surface to the side of one edge of the blade, which is located at the front in the rotational direction of the impeller, bolts, screws, etc. of the mounting means are passed through the mounting hole in the upper wall of the support member and attached to the upper surface of the blade piece. The crushing blade can be easily attached by screwing it into the screw hole and attaching it to the front side edge of the blade piece in the direction of rotation, and then by rotating the impeller,
For example, it is possible to crush solid materials such as newspaper or corn. When replacing the crushing blades, remove the impeller from the crusher, remove the bolts, etc. as a means of attaching the support member attached to the front side edge of the blade of the impeller in the direction of rotation. , by removing the bolts etc. serving as auxiliary attachment means for the crushing blade attached to the outer surface of the side wall of the support member, and then attaching a new crushing blade by performing the reverse operation,
This allows the crushing blade to be replaced. The crusher can be operated by similarly attaching the support member to the blades of the impeller using bolts or the like as attachment means and incorporating the impeller into the crusher.

〔Example〕

The invention will be explained in more detail by means of further illustrated embodiments. Figure 1 is a partially sectional front view of the crusher;
Fig. 2 is a plan view of an impeller in which a crushing blade is attached using the attachment structure of a crushing blade to a blade piece in a crusher according to an embodiment of the present invention, and Fig. 3 is an embodiment of an embodiment according to the present invention. It is an exploded explanatory perspective view of the attachment structure of the crushing blade to the blade piece in the example crusher.

First, an example of the crusher A will be explained. 1st
As shown in the figure, at the lower end of the hopper of the cylindrical container body 1 is a take-out nozzle 2 for taking out crushed materials such as paper.
A container 3 is formed by providing the container 3, and leg portions 4 are provided on the lower surface of the container 3 to enable the container 3 to stand upright. A substrate 6 having a plurality of through holes 5 is provided at the lower end of the hopper in the container 3, and a support member 8 is placed on the substrate 6 at a slight distance, for example, at the front side edge in the rotation direction. An impeller 11 is provided by protruding a blade piece 10 provided with a crushing blade 9 in the circumferential direction of the disc-shaped blade plate 7 as shown in FIG. A rotary shaft 12 is provided in the impeller 11, and the impeller 11 is made rotatable by interlocking with a drive source such as a motor (not shown). That is, when newspaper is put into the container 3 from above, the impeller 11 rotates, and the crushing blades 9 provided on the blades 10 crush the newspaper and cause the paper powder to fall through the through hole of the substrate 6. Then, it is taken out from the take-out nozzle 2.

Next, the attachment structure B of the crushing blades to the blade pieces in the crusher according to the first embodiment of the present invention will be described in detail.
Attachment structure B of crushing blades to blades in a crusher
As shown in FIG. 3, the support member 8, the crushing blade 9, the attachment means 13 for removably attaching the support member 8 to the front side edge portion of the blade piece 10 in the rotational direction, and the outer surface of the side wall of the support member 8. crushing blade 9
It consists of an auxiliary attachment means 14 for detachably attaching.

First, the blade pieces 10 of the impeller 11 are designed to become thicker toward the center of the blade plate 7, and the side edges in the forward direction of the rotation direction of the impeller 11 are designed so that the blade pieces 10 become thicker toward the center of the blade plate 7. A step-like recess 17 is provided, the depth of which increases toward the other end. The support member 8 is attached to the upper wall 1 so as to have an inner surface shape that allows it to come into contact with the side edge of the blade piece 10 from the upper surface to the side edge, which is the front side in the rotational direction of the impeller 11.
5 and a side wall 16, the cross section is approximately L-shaped.
Moreover, the upper wall 15 of the support member 8 is sloped such that the thickness becomes thinner toward the tip. In this way, as shown in FIG.
Although it is preferable to set the upper surface of the support member 8 so that the upper surface of the support member 8 and the upper surface of the upper wall 15 of the support member 8 are on the same plane, it is preferable that the recess 17 is not provided on the upper surface of the side edge of the blade piece 10 of the impeller 11 as shown in FIG. When the support member 8 is attached to the side edge of the blade piece 10, a case may also be adopted in which the upper surface of the blade piece 10 and the upper surface of the upper wall 15 of the support member 8 are stepped.

Next, the support member attaching means 13 to the blade piece 10 of the impeller 11 includes a screw hole 18 with a bottom on the upper surface of the blade piece 10 and a mounting hole 19 in the upper wall 15 of the support member 8.
At the same time, the upper part of the mounting hole 19 of the upper wall 15 of the support member 8 accommodates the head of a bolt, screw, etc. screwed into the screw hole 18, and the upper surface of the head is attached to the upper wall 15.
An enlarged recess 20 of such depth and size that it does not protrude upward from the top surface is provided, and it can be attached using bolts, screws, or the like. Moreover, although the one shown in FIG. 3 uses four bolts as the attachment means 13, the two at the rear of the blade piece 10 are larger than the two at the tip. This is because the blade pieces 10 of the impeller 11 are designed to become thicker toward the center of the blade plate 7.

Further, the crushing blade 9 has a contact surface 21 that can contact the outer surface of the side wall 16 of the support member 8, as shown in FIG.
For example, Stellite 23 is placed around the entire corner of the surface of the stainless steel base 22.
is fixed.

Finally, the auxiliary attachment means 14 for attaching the crushing blade 9 to the support member 8 is provided with a screw hole 24 with a bottom in the contact surface 21 of the crushing blade 9, and the side wall of the support member 8 at a position that matches the screw hole 24. A through hole 25 is provided in the support member 8, and a bolt or screw is inserted into the side wall 1 of the support member 8.
A crushing blade 9 can be attached to the outer surface of the support member 8, and a part of the head of a bolt or the like screwed into the through hole is attached to the left side of the through hole 25 in the side wall 16 of the support member 8 in FIG. In addition to providing an auxiliary enlarged recess 26 with a depth that allows the blade to be accommodated, a storage hole 27 that can accommodate a part of the head of a bolt or the like is bored on the side surface of the side edge of the blade piece 10. . Further, in the illustrated example, positioning holes 28, 28 are formed at the same positions on the outer surface of the side wall 16 of the support member 8 and the contact surface 21 of the crushing blade 9, respectively, and positioning is performed using a pin 28'. be able to.

Note that a crushing blade 9 is provided on the outer surface of the side wall 16 of the support member 8.
As a means of attaching the
In addition to 4, it is also possible to weld the crushing blade 9 to the outer surface of the side wall 16 of the support member 8 and attach it directly, or as shown in FIG. 29, and a dovetail groove 30 that can fit into the dovetail part 29 part way from the front on the contact surface 21 of the crushing blade 9, and the dovetail groove 30 of the crushing blade 9 is provided in the dovetail part 29 of the support part 8. Although not shown, it is also possible to use a fitting method or a method in which the mounting positions of the dovetail portion 29 and the dovetail groove 30 are reversed.
The abutment of the end face 31' of the blade also serves as a stopper to prevent the crushing blade 9 from being blown away in the circumferential direction even if the impeller 11 rotates.

According to the attachment structure B of the crushing blade to the blade piece of the crusher, which is an embodiment of the present invention, the pin 2 is inserted into the positioning hole 28 of the side wall 16 of the support member 8.
The side wall 16 of the support member 8 is inserted into the side wall 16 of the support member 8 by inserting one end of the pin 28' to project the pin 28' onto the side wall surface, and then fitting the other end of the pin 28' into the positioning hole 28 of the crushing blade 9. After positioning and temporarily fixing the crushing blade 9 at As a result, the side wall 16 of the support member 8 can be opened with the head of the bolt 32 partially protruding from the through hole 25 or, depending on the depth of the auxiliary enlarged recess 26, with the head of the bolt 32 not partially protruding. A crushing blade 9 can be attached to the outer surface, and an impeller 11
With the support member 8 in contact with the step-shaped recess 17 on the side edge of the blade piece 10 so that the head of the protruding bolt 32 is stored in the storage hole on the side edge of the blade piece 10 at the front in the rotational direction. The bolt 33 is inserted from above into the screw hole 18 of the blade piece 10 from the mounting hole 19 of the upper wall 15 of the support member 8, and is screwed into the screw hole 18, so that the head of the bolt 33 is attached so that the upper surface of the head is connected to the support portion 8. The support member 8 is housed in the enlarged recess 20 of the mounting hole 19 so as not to protrude upward from the top surface.
can be installed. After attaching the impeller 11 with the crushing blades 9 attached to the lower surface of the container 3 as shown in FIG. 1, the impeller 11 is rotated by a drive source such as a motor (not shown).
When a solid material such as newspaper or corn is inputted from the upper part of the container 3, it is crushed by the crushing blade 9 provided on the blade piece 10, and the paper powder or food powder is dropped from the through hole 5 of the substrate 6 and taken out from the nozzle 2. It can be taken out from. Next, when replacing the crushing blade 9, the impeller 11 is removed from the crusher A, and the mounting hole 1 provided in the upper wall 15 of the support member 8 is
After removing the support member 8 from the blade piece 10 by removing the bolt 33 from the support member 9, the crushing blade 9 is removed from the outer surface of the side wall 16 of the support member 8 by removing the bolt from the through hole 25 provided in the side wall 16 of the support member 8. can be removed and replaced with a new grinding blade by reversing the procedure.

Furthermore, when using the auxiliary attachment means 14' shown in FIG.
0 and the end 31 of the dovetail portion 29 and the end surface 31' of the dovetail groove 30 are brought into contact with each other. Just remove it in the same manner as above and pull out the crushing blade 9.

As described above, according to structure B for attaching the crushing blade to the blade piece in the crusher, which is an embodiment of the present invention,
The mounting hole 19 that accommodates the head of the screw 33 for mounting the support member 8 is inserted into the blade piece 10 of the impeller 11.
The head of the bolt 33 for attaching the support member 8 is not directly and violently hit by solid objects such as newspapers. The support member 8 can be easily removed, that is, the crushing blade 9 can be replaced without causing problems such as rotation, seizure due to frictional heat, or deformation of the recess in the head of the bolt 33 into which the hexagonal wrench is inserted. This can be done in a short period of time, and since the through hole 25 for attaching the crushing blade 9 to the support member 8 does not come into contact with crushed materials, etc., there is no possibility of clogging with crushed materials etc. when attaching and removing the crushing blade 9. Never a problem. In addition, the blade piece 1 of the impeller 11
When the support member 8 is attached to the blade 0, the bolt 32 for attaching the crushing blade is stored in the storage hole 27 on the side surface of the blade piece 10, so that the support member 8 does not wobble even when the impeller 11 rotates. There is no. Furthermore, positioning holes 28, 28 and pins 28' provided in the outer surface of the side wall 16 of the support member 8 and the contact surface 21 of the crushing blade 9 are used for positioning in order to attach the crushing blade 9 to the support member 8.
It can be done accurately with just one touch. Moreover, in the attachment structure B of the crushing blade to the blade piece of the crusher shown in FIG. 3, the support member 8
Since the outer surface of the upper wall 15 and the upper surface of the blade piece 10 are set to be on the same plane, the mounting of the support member 8 will not loosen due to impact during crushing or the like. Furthermore, the crushing blade 9 is mounted on a base 2 made of stainless steel.
2, Stellite 23 is fixed around the entire corner of the 2 surfaces, but a screw hole 24 with a bottom is only provided on the contact surface 21 of the crushing blade 9, and it does not penetrate toward the surface, so it is different from the conventional method. It is easier to manufacture than a crushing blade and is also stronger.

Furthermore, when the auxiliary attachment means 14' shown in FIG.
The crushing blade 9 can be easily attached to the outer surface of the side wall 16 of the support member 8 by just fitting the dovetail groove 30, and the end surface 31 of the dovetail portion 29 and the end surface 31' of the dovetail groove 30 are Due to the contact, even if the impeller 11 rotates and the crushing blade 9
It serves as a stopper to prevent the particles from being blown away in the circumferential direction.

[Effect of idea]

As described above, according to the attachment structure of the crushing blade to the blade piece in the crusher according to the present invention, the head of the bolt, screw, etc. in the auxiliary attachment means for attaching the crushing blade to the support member is brought into contact between the blade piece and the support member. In addition, the support member with the crushing blade attached is placed in front of the blade in the direction of rotation, and the heads of bolts, screws, etc. in the attachment means are positioned on the top surface of the blade, so that Since solid materials such as newspapers do not collide directly and violently during crushing, bolts, screws, etc. in the auxiliary mounting means or mounting means are not rotated in the direction of tightening, and frictional heat can cause seizure. The support member can be removed from the impeller and the crushing blades can be replaced easily. Therefore, the structure in which the crushing blades are normally attached to the blades of such a crusher is operated continuously, and the crushing blades are replaced many times a day.
For example, by having a support member with a crushing blade attached as a spare, it is replaced after the impeller is removed from the container body of the device, but these bolts, screws, etc. in the mounting means are rotated in the tightening direction. Since frictional heat does not cause seizure, the support member to which the crushing blade is attached can be instantly removed from the impeller's blade piece, and the support member to which the spare crushing blade is attached can be attached to the bolts and screws of the mounting means. By replacing the impeller in a short time and incorporating the impeller, it is possible to operate the impeller, which is very effective. In addition, the crushing blade can be accurately and easily positioned with respect to the support member by simply inserting a pin provided on the outer surface of the side wall of the support member or the contact surface of the crushing blade into the positioning hole. A stainless steel base with Stellite fixed all around the corner is used, but a screw hole with a bottom is simply provided on the contact surface of the crushing blade, and it does not penetrate through the base of the crushing blade. This makes it easier to manufacture and has superior strength compared to conventional products.

[Brief explanation of the drawing]

Figure 1 is a front view of the crusher partially cut away, Figure 2
The figure is a plan view of an impeller in which the crushing blades are attached using the attachment structure of the crushing blades to the blade pieces in a crusher according to an embodiment of the present invention, and FIG. An exploded explanatory perspective view of the attachment structure of the crushing blade to the blade piece in the crusher, Fig. 4 shows how the crushing blade is attached to the blade piece in the crusher using the attachment structure of the crushing blade to the blade piece in the crusher without providing a recess on one side edge of the blade. FIG. 5 is an exploded perspective view of another embodiment of the auxiliary attachment means, and FIG. 6 is an exploded perspective view of the attachment structure of the crushing blade to the blade of a conventional crusher. A... Crusher, B... Attachment structure of the crushing blade to the blade piece in the crusher, 1... Container body, 2... Takeout nozzle, 3... Container, 4... Legs, 5... Through hole , 6... Substrate, 7... Feather plate, 8... Support member, 9... Crushing blade, 10... Feather piece, 11...
... Impeller, 12 ... Rotating shaft, 13 ... Mounting means,
14...Auxiliary mounting means, 15...Top wall, 16...
Side wall, 17... Recess, 18... Screw hole, 19... Mounting hole, 20... Enlarged recess, 21... Contact surface, 22
... Base, 23 ... Stellite, 24 ... Spiral hole,
25...Through hole, 26...Auxiliary enlarged recess, 27...
...Storage hole, 28...Positioning hole, 28'...Pin,
29... Dovetail portion, 30... Dovetail groove, 31... End face, 32... Bolt, 33... Bolt.

Claims (1)

[Scope of Claim for Utility Model Registration] An impeller having a plurality of blade pieces protruding in the circumferential direction of a disc-shaped blade plate, and a crushing blade provided on the front side edge of the blade piece in the rotational direction. This is a structure for attaching a crushing blade to a blade piece in a crusher that crushes paper, etc. by rotation, and has an inner surface shape that can come into contact from the top surface to the side surface of one side edge of the blade, which is the front side in the rotational direction of the impeller. A support member having an approximately L-shaped cross section and consisting of an upper wall and a side wall, a crushing blade attached to the outer surface of the side wall of the support member, a screw hole provided on the upper surface of the blade piece, and the upper wall of the support member at a position that coincides with the screw hole. By drilling a mounting hole in the support member and inserting a bolt, screw, etc. through the mounting hole on the outer surface of the support member and screwing it into the threaded hole in the blade piece, the side edge portion of the blade piece of the impeller at the front in the rotational direction can be attached. a mounting means that allows the support member to be detachably attached to the support member, a positioning pin protruding from one side of the contact surface between the outer surface of the support member side wall and the inner surface of the crushing blade, and a positioning pin protruding from the other surface. Positioning is possible by drilling a positioning hole that receives the pin,
A screw hole with a bottom is provided on the inner surface of the crushing blade, and a through hole is drilled in the side wall of the support member at a position that matches the screw hole. Bolts, screws, etc. are inserted through the mounting holes on the inner surface of the support member to crush the blade. A structure for attaching a crushing blade to a blade piece in a crusher, comprising: an auxiliary attachment means that allows a crushing blade to be detachably attached to the outer surface of a side wall of a support member by screwing the blade into a threaded fit;