JP6739032B1 - Foreign matter entanglement prevention structure and separation device of impeller rotating mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foreign matter entanglement prevention structure and a separating device of an impeller rotating mechanism capable of more appropriately producing an entanglement prevention effect and performing cleaning and maintenance more easily. A member disposed in a fixed state on a side wall portion 41 that divides an impeller 10, an apparatus inner side 42 in which a rotating blade portion 12 is located, and an apparatus outer side 43 in which a bearing 50 of a rotating shaft 11 is located. And a shaft insertion member 30 provided so as to form an insertion hole 31 through which the end portion 11a of the rotary shaft 11 is inserted. The shaft insertion member 30 is provided with a device inner side 42 from the side wall portion 41 side. A convex step ring portion 32 formed so that the outer diameter thereof becomes smaller in a convex step shape is provided, and the impeller 10 is coaxial with a portion of the end portion 11 a of the rotating shaft 11 adjacent to the rotating blade portion 12. The cover ring member 20 includes a concave step ring portion 22 formed in a concave step shape, which is arranged in a fixed state and is fitted so as to cover the shape of the convex step ring portion 32. [Selection diagram] Figure 1

Description

According to the present invention, an impeller in which an impeller blade is integrally fixed and provided in a portion excluding both ends of a rotating shaft, an inside of a device in which the impeller blade is located, and an outside of a device in which a bearing of the rotating shaft is located And a shaft insertion member provided so as to form an insertion hole through which an end portion of the rotation shaft is inserted, the impeller rotation mechanism. And a separating device using the structure.

As a conventional separating device, for example, for a separating device having a rotating shaft that is rotatably held and a plurality of crushing blades fixed to the rotating shaft for crushing an object to be separated, as a basic configuration. In the impeller, the rotating shaft has a fixed portion of the crushing blade formed into a square rod shape, and the crushing blade has one end surface thereof fixed to the peripheral surface of the fixed portion of the rotating shaft in a surface contact state (Patent Reference 1) has been proposed by the present applicant.

Then, as a conventional separating device, for example, in a separator impeller for which a plurality of crushing blades for crushing an object to be separated are fixed to a rotation shaft and rotatably held in a drum of the separating device, The first crushing blade formed so that one side end surface is substantially orthogonal to the rotation axis, and one side end surface on the same side as the one side end surface of the first crushing blade are from the fixed portion of the rotation axis. A plurality of crushing blades, which are formed so as to be inclined toward the other side end surface over the tip portion thereof, are provided as a plurality of crushing blades so that the first and second crushing blades are adjacent to each other in the rotation direction. The applicant of the present invention has been able to prevent the entanglement of dust on the rotating shaft of the impeller while fixing the separation target to the rotating shaft while enabling smooth supply of the separated object (see Patent Document 2). Proposed.

Further, as a foreign matter entanglement prevention structure of a conventional impeller rotating mechanism, for example, a plurality of crushing blades for crushing an object to be separated are formed in a tubular shape with an impeller fixed to a rotating shaft, and In a separating device, a bearing having rotatably holding a rotary shaft is provided on both side walls, and a drum having a supply port capable of supplying an object to be separated is formed on one side wall. It is possible to smoothly supply the separation target by being equipped with a cover member that is fixed to the rotary shaft so that the rotary shaft can rotate, and that covers from the fixed part of the crushing blade on the rotary shaft to the inner surface side of one side wall. The applicant of the present invention has proposed a separating device (see Patent Document 3) for the purpose of preventing entanglement of dust on the rotating shaft of the impeller.

Further, as the foreign matter entanglement prevention structure of the impeller rotating mechanism, for example, by forming a cylindrical shape and covering the shaft portion protruding from the end portion of the rotating portion supported by the bearing portion, the foreign matter is prevented from rotating when the rotating portion rotates. When configuring a foreign matter entanglement prevention device for a rotating mechanism including an entanglement prevention member that prevents entanglement, the rotating unit rotates along the outer peripheral surface of the entanglement prevention member to remove at least foreign matter attached to the outer peripheral surface. By providing two or more foreign matter removing members, it is possible to reliably prevent entangled foreign matter from entering the gap between the entanglement preventing member and the shaft portion, to facilitate cleaning and maintenance, and to ensure smooth rotation of the rotating part. The applicant of the present invention has proposed a foreign matter entanglement prevention device (see Patent Document 4) for a rotating mechanism, which is intended to secure rotation and to avoid damage to the bearing portion due to entry of foreign matter.

Japanese Patent Laid-Open No. 2000-167426 (page 1) JP 2001-327888 A (1st page) JP 2001-327893 A (1st page) JP-A-2006-130417 (page 1)

The problem to be solved regarding the foreign matter entanglement prevention structure of the impeller rotating mechanism and the separating device has a predetermined effect even in the conventional structure, but the entanglement prevention effect is more appropriately generated, and cleaning and maintenance are easier. There is a need for a structure that can be performed.

Therefore, an object of the present invention is to provide a foreign matter entanglement prevention structure and a separating device for an impeller rotating mechanism that can more appropriately produce an entanglement prevention effect and can more easily perform cleaning and maintenance.

The present invention has the following configuration in order to achieve the above object.
According to one aspect of the foreign matter entanglement prevention structure of the impeller rotating mechanism according to the present invention, an impeller having a rotating blade portion configured by fixing an impeller blade to a portion excluding both ends of a rotating shaft, A member disposed in a state of being fixed to a side wall portion that divides the inside of the device in which the rotary vane portion is located and the outside of the device in which the bearing of the rotary shaft is located, the end portion of the rotary shaft being inserted therethrough. A foreign matter entanglement prevention structure of an impeller rotating mechanism, comprising: a shaft insertion member provided so as to form an insertion hole, wherein the shaft insertion member has a tubular shape for forming the insertion hole, A convex step ring portion formed so that the outer diameter thereof becomes smaller in a convex step from the side wall side toward the inside of the apparatus is provided, and the impeller has the rotary blade portion at the end of the rotary shaft. A cylindrical member arranged coaxially fixed to a portion adjacent to, and provided with a concave step ring portion formed in a concave step shape that fits so as to cover the shape of the convex step ring portion. a cover ring member being the axis of rotation of sites the rotary blade of the impeller is provided with a square shaft portion of the cross section square, the by the square shaft portion and four sheets of the impeller blades A rotary vane portion is configured, and a portion of the cover ring member adjacent to an axial end of the rotary vane portion is provided in a square hole into which the square shaft portion is fitted and fixed, and an end portion of the rotary shaft. Is provided with an extended portion of the square shaft portion so as to fit up to a midway portion in the axial direction of the square hole, and at least the portion from the square shaft portion to the end of the rotary shaft is Regarding the portion where the square shaft portion is not fitted in the square hole, a circular shaft portion having a circular cross section and having a diameter smaller than the length of one side of the square hole is provided as a portion extended from the square shaft portion, and the covering member said recessed step said rectangular hole a surface of said recessed step-like inner bottom in the ring portion is opened recessed step ring portion of the inner bottom plane, four formed by being surrounded by the arc and chord A circular ring end flat surface, which is a flat surface, is provided as a cutting blade portion in which the chord portion is formed into a square blade shape, and is a flat surface of a convex tip of the convex step ring portion of the shaft insertion member, It is provided as a blade part for the part.

Further, according to an aspect of the foreign matter entanglement prevention structure of the impeller rotating mechanism according to the present invention, the bearing of the rotating shaft is arranged at a distance from the shaft inserting member to the outside of the device. can do.

Further, according to an aspect of the foreign matter entanglement prevention structure of the impeller rotating mechanism according to the present invention, the convex step ring portion is formed in a plurality of convex ring step shapes, and the concave step ring portion is the convex step ring portion. It can be characterized in that it is formed in a plurality of concave ring step shapes following the shape of the above.

According to one embodiment of the separation device of the present invention, the separation device uses the foreign matter entanglement prevention structure of the impeller rotating mechanism, wherein the inside of the device is the inside of the drum of the separation device and the outside of the device is the above-mentioned. It is configured as an outer side of a drum, and the impeller is provided so that the rotating shaft is horizontally arranged to rotate, and an object to be separated is crushed by the impeller at an upper part of one end surface of the drum. So that the object to be separated is thrown into the upper side of one end of the rotary blade portion in the axial extension direction of the rotary shaft in the rotary blade portion. The shaft insertion member may be arranged on the side wall portion provided on one end surface of the provided drum.

Further, according to one embodiment of the separation device of the present invention, the separation object is composed of a content and a storage means for storing the content, the storage means is a resin bag or a resin container, The contents may be contents contained in a resin bag or a resin container.

According to the foreign matter entanglement preventing structure and the separating device of the impeller rotating mechanism of the present invention, the entanglement preventing effect can be more appropriately produced, and the special advantageous effect that cleaning and maintenance can be performed more easily can be achieved.

It is sectional drawing which shows the form example of the foreign substance entanglement prevention structure of the impeller rotating mechanism which concerns on this invention, and is an enlarged view of the principal part X of FIG. It is a perspective view which shows the example of a form of a shaft insertion member and an impeller which are the main parts of the structure of the example of form of FIG. It is the sectional view on the AA line cross section of the example of a form of FIG. It is a BB line sectional end view of the example of a form of FIG. It is sectional drawing which shows the example of a form of the separation apparatus which used the example of form of FIG.

Hereinafter, embodiments of the foreign matter entanglement prevention structure of the impeller rotating mechanism and the separating device according to the present invention will be described in detail with reference to the accompanying drawings (FIGS. 1 to 5).

As shown in FIG. 1, the foreign matter entanglement prevention structure of the impeller rotating mechanism according to the present invention has, as a basic configuration, an impeller blade 13 (see FIG. 5) at a portion excluding both ends 11a and 11e (see FIG. 5) of the rotating shaft 11. 2) is fixed, and the impeller 10 is provided with a rotating blade portion 12, an apparatus inner side 42 in which the rotating blade portion 12 is located, and a device in which a bearing 50 (see FIG. 5) of the rotating shaft 11 is located. A member that is arranged in a state of being fixed to a side wall portion 41 that divides the outer side 43, and that is provided so as to form an insertion hole 31 through which the end portion 11a of the rotating shaft 11 is inserted. It is equipped with.

As shown in FIG. 1, the shaft insertion member 30 has a cylindrical shape that forms the insertion hole 31, and the outer diameter decreases in a convex step shape from the side wall portion 41 side toward the device inner side 42. The protruding step ring portion 32 formed on the above is provided.
As shown in FIG. 2, the shaft insertion member 30 is provided with flange portions 34, 34 extending to the left and right sides so as to be fixed to the side wall portion 41, so that the shaft insertion member 30 can be fixed with bolts and nuts. , Through holes 35 for attachment are provided.

Further, as shown in FIG. 1, the impeller 10 is a tubular member arranged coaxially with a portion of the end portion 11a of the rotary shaft 11 adjacent to the rotary blade portion 12, The cover ring member 20 is provided with a concave step ring portion 22 formed in a concave step shape that fits so as to cover the shape of the convex step ring portion 32.

According to the foreign matter entanglement prevention structure of the impeller rotating mechanism according to the present invention, the convex step ring portion 32 of the shaft insertion member 30 and the concave step ring portion 22 of the cover ring member 20 of the impeller 10 are brought into a slidable state. The end portions 11a of the rotating shafts 11 of the impeller 10 are preferably covered with each other. For this reason, the structure is such that foreign matter does not easily enter between the shaft insertion member 30 and the end portion 11a of the rotary shaft 11, and the entanglement of foreign matter can be effectively prevented, and at the same time, from the device inner side 42 to the device outer side 43. It is possible to effectively prevent the contents from flowing out.

The fitting relationship between the convex step ring portion 32 of the shaft insertion member 30 and the concave step ring portion 22 of the cover ring member 20 does not substantially fulfill the function of receiving a load like a bearing. In other words, the design is such that there is a slight gap over the entire circumference, and in reality, lubrication is performed by the oil content of the contents, which are separation targets such as food waste and food waste. There is only a small gap that does not hinder the rotation of the impeller 10 even if it is sealed in the state.

Further, as shown in FIG. 5, the bearing 50 that receives the end 11a of the rotary shaft 11 and rotatably holds the impeller 10 is arranged from the shaft insertion member 30 to the outside 43 of the device with a space. .. In the present embodiment, the distance between the shaft insertion member 30 and the bearing 50 is wider than the diameter of the circular shaft portion 11c that constitutes the end portion 11a of the rotary shaft 11, and is 2 times the diameter of the circular shaft portion 11c. The intervals are about twice as long.

According to this, the foreign matter entwined with the rotating shaft 11 can be more appropriately prevented from reaching the bearing 50, and the bearing 50 can be prevented from being damaged by the foreign matter.
As shown in FIGS. 1 and 4, the inner peripheral surface 31a of the insertion hole 31 of the shaft insertion member 30 and the outer peripheral surface 11d of the circular shaft portion 11c forming the end portion 11a of the rotary shaft 11 are circular. The fitting dimension is set so that a ring-shaped gap 29 is formed, and the tangled foreign matter can be removed from the circular ring-shaped gap 29 so as to be discharged.

Further, in the present embodiment, the convex step ring portion 32 is formed in a plurality of convex ring step shapes, and the concave step ring portion 22 is formed in a plurality of concave ring step shapes following the shape of the convex step ring portion 32. ing.
Then, specifically, regarding the present embodiment example, the convex step ring portion 32 is formed in a two-step convex ring step shape, and the concave step ring portion 22 follows the shape of the convex step ring portion 32 to form the two concave ring step. It is formed in a shape.

More specifically, the shaft insertion member 30 fixed to the side wall portion 41 is formed with the convex step ring portion 32 having a shape in which the diameter is reduced stepwise as described above. As shown in FIG. 2, the first fixed ring flat surface 32a, the first fixed ring peripheral surface 32b, the second fixed ring flat surface 32c, the second fixed ring peripheral surface 32d, and the third fixed ring flat surface (circular shape). It is formed with a ring end plane 33). Correspondingly, in the cover ring member 20 which is fixed to the rotating shaft 11 and rotates integrally, the concave step ring portion 22 having a shape in which the diameter is reduced stepwise toward the rotary blade portion 12 side. As shown in FIG. 2, the concave step ring portion 22 has a first rotary ring plane 22a, a first rotary ring peripheral surface 22b, a second rotary ring plane 22c, and a second rotary ring plane 22c. It is formed to have a ring peripheral surface 22d and a third rotating ring plane (inner bottom plane 23).

According to this, since the mating portion of the fixed shaft insertion member 30 and the rotating cover ring member 20 has a plurality of steps, from the outer peripheral surface of the shaft insertion member 30 and the cover ring member 20 to the rotary shaft 11. The distance between them becomes a zigzag path and becomes a long and complicated shape, and a structure in which foreign matter is less likely to enter between the shaft insertion member 30 and the end portion 11a of the rotating shaft 11 of the impeller 10 is formed. There is. That is, since the foreign matter such as the resin bag is hard to reach the rotating shaft 11 and the foreign matter is hard to be caught, it is possible to more appropriately prevent the foreign matter from being entangled.

Further, in the present embodiment, the rotary shaft 11 of the portion where the rotary blade portion 12 of the impeller 10 is provided is the square shaft portion 11b having a square cross section, and the square shaft portion 11b and the four impeller blades 13, The rotary vane portion 12 is composed of 13, 13, 13. Then, more specifically, in the impeller 10 of the present embodiment, each of the four surfaces (four long planes provided in the long side) forming the outer surface of the square shaft portion 11b having a square cross section formed in a square rod shape, Welding in a form in which flat portions of the root side portion of the blade base portion forming the base portion of each plate-shaped impeller blade 13 (long flat portions corresponding to the outer surfaces of the four sides of the square shaft portion 11b) are in contact with and overlap with each other. It is fixed and formed by.

According to this, the impeller 10 that functions to crush the object to be separated and appropriately separate it by the blowing effect of the air blow can be manufactured with high accuracy and high strength and with good workability. As shown in FIG. 5, 14 is a reinforcing plate, which is provided so as to reinforce the impeller blade 13 and generate air. Further, reference numeral 60 denotes a drive unit that is provided to drive the impeller 10 to rotate. For example, as shown in the present embodiment, the drive unit 60 includes a drive motor (not shown) and a power transmission device using a V belt. There is.
Note that the principle, configuration, and effect of separating the separation target according to the separation device including the impeller 10 into the content and the storage means are the same as those in the related art, and thus the description thereof will be omitted.

Further, in the present embodiment, the portion of the covering member 20 adjacent to the rotary blade portion 12 is provided in the square hole 21 into which the square shaft portion 11b is fitted and fixed, and the end portion 11a of the rotary shaft 11 has a square shape. An extended portion of the quadrangular shaft portion 11b is provided so as to fit up to a midway portion of the hole 21 in the axial direction, and at least the quadrangular hole 21 in the portion from the quadrangular shaft portion to the end of the rotary shaft 11 has a square shape. Regarding the portion where the shaft portion 11b is not fitted, a circular shaft portion 11c having a circular cross section and having a diameter smaller than the length of one side of the square hole 21 is provided as a portion extended from the square shaft portion.

The inner bottom plane 23 of the recessed ring portion in which the square hole 21 of the cover ring member 20 is opened is composed of four planes formed by being surrounded by an arc and a chord, and the chord portion is a square blade. The circular ring end flat surface 33, which is a flat surface of the convex tip of the convex step ring portion 32 of the shaft insertion member 30, which is provided as the cutting edge portion 24 (see FIG. 3), is received by the cutting edge portion 24. 33 (see FIG. 4).

According to this, the cutting blade portion 24 rotates while being in contact with the fixed receiving blade portion 33, so that the foreign matter can be suitably cut. That is, according to the cutting edge portion 24 and the receiving edge portion 33, if a foreign matter such as a resin bag that easily entangles is a convex step which is a mating portion between the fixed shaft insertion member 30 and the rotating cover ring member 20. Even when the foreign matter enters through the fitting portion of the ring portion 32 and the recessed ring portion 22 and tries to reach the rotating shaft 11, the foreign matter can be appropriately cut. Then, the cut foreign matter is discharged from the circular ring-shaped gap 29. Therefore, it is possible to more effectively prevent the entering foreign matter from being entangled with the rotating shaft 11.

Further, the embodiment shown in FIG. 5 is a separation device using the foreign matter entanglement prevention structure of the impeller rotating mechanism described above, wherein the device inner side 42 is the inner side of the drum 40 of the separation device and the device outer side 43 is the drum 40. The impeller 10 is provided so that the rotating shaft 11 is horizontally arranged and rotates.

Then, on the upper side of one end surface of the drum 40, the separation target is related to the axial extension direction of the rotary shaft 11 in the rotary blade part 12 so that the separation target is crushed and separated by the impeller 10. An insertion port 40a opened so as to be inserted into one end upper side 12a is provided, and the shaft insertion member 30 is arranged on a side wall portion 41 provided on one end face of the drum in which the insertion port 40a is provided. Therefore, the separation device is preferably configured.

Further, as one mode example, the separation object is composed of a content and a storage means for storing the content, the storage means is a resin bag or a resin container, the content is a resin bag or Even in the case of the contents stored in the resin container, it is possible to more effectively prevent the foreign matter of the resin material such as the resin bag from being entangled with the rotating shaft 11 of the impeller 10.
Therefore, according to this, the foreign matter of the resin material is entangled with the rotating shaft 11 itself, or the foreign matter is melted by friction and adheres to the rotating shaft 11, and thus adversely affects the rotation of the impeller. It is possible to prevent the increase of power consumption of the motor and the damage of the device.

In addition, the resin bag and the resin container, such as bags that store general garbage and combustible garbage, plastic packaging material used as a food package and a resin material container including a plastic bottle, It includes all materials made of resin material.
However, the means for accommodating the object to be separated is not limited to the resin bag or the resin container as in the above-described embodiment, and includes those made of metal such as steel or aluminum such as a can of canned material. It also includes paper-containing materials, such as gypsum board.
That is, according to the separation device of the present invention, the packaged food waste or the like can be efficiently separated into the organic substance or the like as the contents thereof and the waste plastic or metal without foreign matter being entangled with the rotating shaft 11.・It can be separated.

In the separation device of the embodiment shown in FIG. 5, the contents composed of crushed food waste and the like are discharged downward from the porous portion provided in the lower portion of the drum 40, and a storage means such as a resin bag is stored. The substance is discharged laterally from the upper side downstream of the drum 40 in the blowing direction, and the principle, configuration, and action and effect thereof are the same as those of the conventional separating device, and thus the description thereof will be omitted.

Further, the foreign matter entanglement prevention structure of the impeller rotating mechanism according to the present invention may be provided only on one end 11a of the rotary shaft 11 where the phenomenon of substantially entangled foreign matters occurs, as in the present embodiment. However, it is needless to say that they may be provided at both ends 11a and 11e of the rotary shaft 11.
Since the other end 11e of the rotating shaft 11 of the present embodiment is a portion located ahead of the position of the drum where the separation target is separated and sorted and discharged, foreign matter is less likely to be entangled. At the same time, there is a low possibility that separated substances such as organic substances will overflow, and as shown in FIG. 5, the cylindrical shaft insertion member 36 fixed to the other end surface of the drum 40 is provided. , Is inserted in a loosely fitted state. The tubular shaft insertion member 36 is provided with a reduced diameter portion at a position midway in the axial direction of the insertion hole, and the step portion forming the reduced diameter portion prevents the contents from flowing out. It is structured.

Further, the foreign matter entanglement prevention structure of the impeller rotating mechanism according to the present invention is not limited to being properly used for the separating device as described above, and may be a crushing device, a cleaning device, a mixing device or a stirring device. For example, it has a configuration that can be suitably used.

Although the present invention has been variously described with reference to the preferred embodiment, the present invention is not limited to this embodiment and many modifications can be made without departing from the spirit of the invention. It is.

10 Impeller 11 Rotating Shaft 11a End 11b Square Shaft 11c Circular Shaft 11d Outer Surface 11e End 12 Rotating Blade 12a One End Upper 13 Impeller Blade 13a Blade Base 14 Reinforcement Plate 20 Covering Member 21 Square Hole 22 concave step ring portion 22a first rotary ring plane 22b first rotary ring peripheral surface 22c second rotary ring plane 22d second rotary ring peripheral surface 23 inner bottom plane (third rotary ring plane)
24 Cutting Blade Part 29 Circular Ring-shaped Gap 30 Shaft Insertion Member 31 Insertion Hole 31a Inner Surface 32 Convex Step Ring Part 32a First Fixed Ring Flat Surface 32b First Fixed Ring Peripheral Surface 32c Second Fixed Ring Flat Surface 32d Second 2 fixed ring peripheral surface 33 receiving edge portion (circular ring end plane, third fixed ring plane)
34 Collar part 35 Through hole 36 Cylindrical shaft insertion member 40 Drum 40a Input port (upper part of one end face)
41 Side Wall 42 Inner Side 43 Outer Side 50 Bearing 60 Drive Unit

Claims (5)

An impeller provided with a rotary vane part configured by fixing an impeller blade to a portion excluding both ends of the rotary shaft, an inside of a device in which the rotary vane is located, and a device in which a bearing of the rotary shaft is located. A member disposed in a state of being fixed to a side wall portion that separates from the outside, and a shaft insertion member provided so as to form an insertion hole through which an end portion of the rotation shaft is inserted, and an impeller rotation. The structure of the mechanism for preventing entanglement of foreign matter,
The shaft insertion member is provided with a protruding step ring part that has a cylindrical shape that forms the insertion hole and is formed so that the outer diameter decreases in a protruding step from the side wall side toward the inside of the device. Is provided,
The impeller is a cylindrical member disposed coaxially with a portion of the end of the rotary shaft adjacent to the end of the rotary vane in the axial direction. e Bei the covering member recessed step ring portion formed in a concave step shape to fit cover to follow the the shape is provided,
The rotary shaft of the portion of the impeller provided with the rotary blade portion is a square shaft portion having a square cross section, and the rotary blade portion is constituted by the square shaft portion and the four impeller blades ,
A portion of the cover ring member adjacent to the axial end of the rotary blade portion is provided in a square hole into which the square shaft portion is fitted and fixed,
An end portion of the rotating shaft is provided with an extended portion of the square shaft portion so as to fit up to an intermediate portion in the axial direction of the square hole, and from the square shaft portion to the end of the rotating shaft. Up to at least the portion where the square shaft portion is not fitted in the square hole, the circular shaft portion having a circular cross section and having a diameter smaller than one side length of the square hole is provided as a portion extended from the square shaft portion. The
An inner bottom plane of the recessed step ring portion in which the square hole is opened, which is a surface of the recessed step- shaped inner bottom in the recessed step ring portion of the cover ring member, is surrounded by an arc and a chord. Is formed by four flat surfaces, and the chord portion is provided as a cutting blade portion formed in a square blade shape,
A foreign matter entanglement prevention structure for an impeller rotating mechanism, wherein a circular ring end plane which is a plane of a convex tip of the convex step ring portion of the shaft insertion member is provided as a blade receiving portion for the cutting blade portion. .. The foreign matter entanglement prevention structure for an impeller rotating mechanism according to claim 1, wherein the bearing of the rotating shaft is arranged at a distance from the shaft inserting member to the outside of the device. The convex step ring portion is formed in a plurality of convex ring step shapes, and the concave step ring portion is formed in a plurality of concave ring step shapes following the shape of the convex step ring portion. The foreign matter entanglement prevention structure of the impeller rotating mechanism according to claim 1. A separation device using the foreign matter entanglement prevention structure of the impeller rotating mechanism according to claim 1 .
The inside of the device is the inside of the drum of the separating device, the outside of the device is configured as the outside of the drum,
The impeller is provided so that the rotation shaft is horizontally arranged and rotates.
The upper part of one end surface of the drum has one of the separation target objects in the axial extension direction of the rotary shaft of the rotary blade part so that the separation target object is crushed and separated by the impeller. A charging port opened so that it can be charged to the upper side of the end,
The separating device, wherein the shaft insertion member is arranged on the side wall portion provided on one end surface of the drum provided with the input port. The separation target is composed of a content and a storage means for storing the content, the storage means is a resin bag or a resin container, and the content is a resin bag or a resin container containing contents. The separation device according to claim 4 , wherein the separation device is provided.

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