JP7724516B2 - The structure of the rotating shaft and shaft hole of the raw seaweed foreign body separation and removal device - Google Patents

Description

This article relates to a raw seaweed foreign matter separation and removal device that allows the rotating disk (rotating plate) to be attached to the sorting casing without wobbling, as well as the structure of its rotating shaft and shaft hole.

In raw seaweed foreign matter separation and removal equipment, it is difficult to attach the rotating plate to the sorting casing without wobbling. If wobbling occurs, the clearance dimensions become uneven, which can lead to problems such as an inability to remove foreign matter from the raw seaweed mixture or an inability to ensure a sufficient amount of sorting.

As a means (method) for preventing this blurring, the following structures have been proposed.
1) A structure that prevents wobble by holding the boss portion of the rotating plate and the rotating shaft long is exemplified. For example, this is disclosed in Japanese Patent Laid-Open Publication No. 2000-279138.
2) A structure that prevents wobble by keeping the boss portion of the rotating plate and the rotating shaft short is exemplified. For example, this is disclosed in Japanese Patent Application Laid-Open No. 2002-335919, Japanese Patent Application Laid-Open No. 2002-34522, and Japanese Patent Application Laid-Open No. 11-276123.
Japanese Patent Application Laid-Open No. 2000-279138 Japanese Patent Application Laid-Open No. 2002-335919 Japanese Patent Application Laid-Open No. 2002-34522 Japanese Patent Application Publication No. 11-276123

While the above documents play a part in preventing the rotor plate from wobbling, they are still insufficient, and in light of the recent demand for improved foreign matter separation accuracy, further improvements and optimal wobble prevention are required. Furthermore, there is a demand for a wobble prevention structure that is simple and easy to handle.

We provide a vibration prevention device that meets the above-mentioned needs and is also cost-effective. The structure is disclosed in claims 1 to 8.

The invention of claim 1 is a raw seaweed foreign matter separation and removal device that includes a sorting casing having a raw seaweed discharge port, a rotating plate that is provided via a clearance in the sorting casing or a sorting case ring provided in the sorting casing, and a raw seaweed supply port, a seawater supply port, and a foreign matter discharge port that are provided in a raw seaweed mixed liquid tank, and that separates foreign matter from the raw seaweed by utilizing the rotation of the rotating plate and the clearance,
A collet is provided as a shaft stopper means, which is fitted and supported in a gap formed by a rotating shaft suspended from the inner bottom surface of the sorting casing and an outer circumferential surface of the rotating shaft and an axial hole of the rotating plate, and the collet has a split groove in the axial direction, a tapered portion at the front end portion, and/or a relief hole at the rear end portion, and/or a key groove facing the axial direction,
The sizes of the insertion opening portion (7a1) and the terminal opening portion (7a2) provided in the axial hole are
The insertion opening portion (7a1) is greater than the terminal opening portion (7a2),
The maximum diameter of the tapered portion (401) of the collet is at least larger than the diameter of the insertion opening portion (7a1) of the axial hole,
A single-stage and/or multi-stage narrowing portion (405) is provided on the rear end side of the tapered portion (401) of the collet.
This is a raw seaweed foreign matter separation and removal device characterized by the above.

Therefore, in the raw seaweed foreign matter separation and removal device, the rotating plate can be attached to the sorting casing without wobbling, or it is very useful for preventing wobbling , thereby achieving uniform clearance dimensions. This allows foreign matter in the raw seaweed mixture to be removed, the amount of sorting to be ensured, and the quality of the dried seaweed to be improved. In addition, by providing a narrowing portion near the rear end of the tapered portion of the collet, the pressing effect against the terminal opening of the axial hole can be improved, for example.

The invention of claim 2 is the raw seaweed foreign matter separation and removal device according to claim 1,
The rotating shaft supports the rotating plate, which is fitted and supported so as to form a clearance between the inner surface (3d) of a circular hole that opens from the surface (3a) of the sorting casing toward the back surface (3b), and the inner surface (3d) and the outer surface (7b) of the rotating plate, or a clearance between the inner surface (5d) of a circular hole that opens from the surface (5a) of the sorting case ring provided in the sorting casing toward the back surface (5b) and the outer surface (7b) of the rotating plate, and the collet, which is the shaft stopping means, is fitted and supported in the gap formed between the outer surface of the rotating shaft and the shaft hole of the rotating plate, and the rotating shaft is inserted into and supported in the shaft hole of the rotating plate.This is the structure of the rotating shaft and shaft hole of the raw seaweed foreign matter separation and removal device.

Therefore, in the raw laver foreign matter separating and removing device, the rotating plate can be attached to the sorting casing without wobbling, and by preventing wobbling, the clearance dimensions can be made uniform, which makes it possible to remove foreign matter from the raw laver mixed liquid, ensure the amount of sorting, and improve the quality of the dried laver.

The invention of claim 3 is a structure of the rotating shaft and shaft hole of the raw seaweed foreign matter separating and removing device, in which the shaft stopping means of claim 2 is a collet for gripping the rotating shaft.

Therefore, claim 3 can achieve the feature of claim 2. Also, a collet for gripping a rotating shaft can be provided as a shaft stopping means useful for achieving this feature.

The invention of claim 4 is a structure of the rotating shaft and shaft hole of a raw seaweed foreign matter separation and removal device, in which the collet described in claim 3 is configured to have an axial split groove, a tapered portion, and/or a key groove.

Therefore, claim 4 can achieve the feature of claim 3. Also, a collet can be provided as a shaft stopper means that helps achieve this feature.

The invention of claim 5 is a structure of a rotating shaft and a shaft hole of a raw seaweed foreign matter separating and removing device, in which the collet of claim 4 is configured to have an escape hole.

Therefore, claim 5 can achieve the feature of claim 4. Also, a collet can be provided as a shaft stopping means that helps achieve this feature.

A scaled schematic diagram showing an example of a raw seaweed foreign body separation and removal device and some of the related equipment. Enlarged cross-sectional view of the main part of the raw seaweed mixed liquid tank of the raw seaweed foreign matter separation and removal device Enlarged cross-sectional view of the main part of another raw seaweed mixed liquid tank in Figure 2-1 An enlarged schematic diagram showing a preferred example of a collet provided between the shaft hole of the rotary plate in FIG. 2-1 (including FIG. 2-2) and the rotary shaft. FIG. 4 is an enlarged cross-sectional view of a main part of FIG. 3 ; FIG. 4 is a schematic diagram showing a state before the shaft stopper is inserted between the shaft hole of the rotary plate shown in FIG. 3 and the rotary shaft. 10 is a side view of another preferred example of the collet.

The following describes one preferred example of the raw seaweed foreign matter separation and removal device of the present invention, as well as the structure of the rotating shaft and shaft hole of this foreign matter separation and removal device.

In Figures 1-2-2, the raw seaweed foreign matter separator (good raw seaweed separator) 1 comprises a raw seaweed mixed liquid tank 2 with an upper open portion for pooling the raw seaweed mixed liquid, and a sorting casing 3, which is a container, for example, a jar-shaped, bottle-shaped, or bowl-shaped as shown in Figure 2-1, and/or a circular sorting case ring 5, which is supported on the outer peripheral wall 301 erected above the inner bottom surface 300 of the sorting casing 3, and which has a circular hole (opening) (no symbol) extending from the surface 5a to the back surface 5b of the sorting case ring 5, as shown in Figure 2-2. The casing 3 is made up of a rotating plate 7 located adjacent to the inner surface 3d of a circular hole (unnumbered) that opens from the front surface 3a toward the back surface 3b of the casing 3; a clearance 6 (details will be described later) formed between the inner surface 3d of the sorting casing 3 or the inner surface 5d of the sorting case ring 5 and the outer surface 7b of the rotating plate 7; a rotating shaft 9 suspended from the inner bottom surface 300 of the sorting casing 3 to support the rotating plate 7; a bearing 10 located in the center 302 of the sorting casing 3 that supports the rotating shaft 9; and a motor 11 that rotates the rotating shaft 9. Note that when the sorting casing 3 and sorting case ring 5 are integrated as shown in Figure 2-2, the sorting case ring 5 can be read as the sorting casing 3. Their functions are also the same.

In Figure 1, reference numeral 20 denotes a hose that is connected to a raw seaweed mixed liquid storage tank 21 that stores raw seaweed and seawater/water (referred to as raw seaweed), and supplies a fixed amount of raw seaweed from its opening to the raw seaweed mixed liquid tank 2. A hose referenced 25 in the figure supplies seawater or water to the raw seaweed foreign matter separation device 1. Reference numeral 26 in the figure denotes a pump.

In addition, in Figure 2-1, reference numeral 22 denotes multiple raw seaweed discharge ports provided on the inner bottom surface 300 of the sorting casing 3 for removing the sorted raw seaweed, and 23 denotes a pipe connected to the raw seaweed discharge ports 22. The raw seaweed separated (sorted) in the clearance 6 is supplied via the raw seaweed discharge ports 22 and the pipe 23 to the raw seaweed tank 12 (high-quality raw seaweed tank) where the raw seaweed is pooled, or to the next seaweed manufacturing device (ensuring the amount of raw seaweed passing through the clearance 6).

The small gap 30 formed between the outer surface 9a of the rotating shaft 9 and the shaft hole 7a of the rotating plate 7 fits and supports the shaft stopper 31, securing the rotating plate 7 to the rotating shaft 9 without wobbling. An optimal example of the shaft stopper 31 is the collet 40 shown in Figures 3-5, which is used to grip the rotating shaft and tighten the shaft hole, as shown in Figure 3. Specifically, the collet 40 is configured with an axial slot 400, a tapered portion 401 at the tip, and/or a relief hole 402 at the rear end (insertion direction), and, if necessary, a keyway 403 extending axially. Therefore, as shown in Figure 5, the shaft hole 7a has a diameter such that the insertion opening portion 7a1 is greater than the terminal opening portion 7a2, and the relationship between the shaft hole 7a and the collet 40 is such that the insertion opening portion 7a1 is smaller than the tapered portion 401. With this structure, the gap 30 is reliably filled with the collet 40, and the rotary plate 7 is tightly fastened to the rotary shaft 8. To ensure reliable fastening, a key 404 is inserted and supported in the key groove 403. As shown in Figure 6, the collet 40 can also be provided with a tapered portion 405 at the rear end of the tapered portion 401. By providing the tapered portion 405, the collet 40 is more reliably pressed against the terminal opening portion 7a2. While the tapered portion 405 has one step, it can also have multiple steps. The above-described collet 40 structure is an example and is not intended to be limiting.

In this invention, the shaft hole 7a of the rotating plate 7 is inserted onto the rotating shaft 9 rotated by the motor 11, and the collet 40 (shaft stopper means 31) is inserted and supported in the gap 30. This compresses the collet 40's multiple slots 400 while inserting it sequentially from top to bottom into the gap 30. This fills and tightens the gap 30 with the collet 40. Therefore, the rotational drive of the rotating shaft 9 is reliably transmitted to the rotating plate 7, and there is absolutely no wobble. Furthermore, a key 404 may be provided to further secure the engagement and fixation of the rotating shaft 9 and the rotating plate 7. This prevention of wobble and the reliable transmission of the rotational drive of the rotating shaft 9 to the rotating plate 7 allows the boss portion 7b of the rotating plate 7 to be shortened, resulting in advantages such as ensuring rotational performance, saving resources, and enabling the motor 11 to be made more compact.

The above-described structures and features are descriptions of preferred examples of the present invention. Therefore, the present invention is not limited to the above-described examples, and structures that partially modify the configuration within the spirit of the invention, or structures that can achieve the same features and effects, are also within the scope of the present invention.

1 raw seaweed foreign matter separator 2 raw seaweed mixed liquid tank 200 inner bottom surface 201 tank corner 3 sorting casing 3a surface 3b back surface 3d inner peripheral surface 300 inner bottom surface 301 outer peripheral wall 302 center 5 sorting case ring 5a surface 5b back surface 5d inner peripheral surface 6 clearance 7 rotating plate 7a shaft hole 7a1 insertion opening portion 7a2 terminal opening portion 7b outer peripheral surface 7c boss portion 9 rotating shaft 9a outer peripheral surface 10 bearing 11 motor 12 raw seaweed tank 20 hose 21 raw seaweed mixed liquid storage tank 22 raw seaweed discharge port 23 piping 25 hose 26 pump 30 gap 31 shaft stop means 310 split groove 311 tapered portion 312 relief hole 313 key groove 314 key 40 collet 400 split groove 401 Tapered portion 402 Relief hole 403 Key groove 404 Key 405 Constricted portion

Claims (5)

A raw seaweed foreign matter separation and removal device comprising: a sorting casing having a raw seaweed discharge port; a rotating plate provided through a clearance in the sorting casing or a sorting case ring provided in the sorting casing; a raw seaweed supply port, a seawater supply port, and a foreign matter discharge port provided in a raw seaweed mixed liquid tank; and the raw seaweed foreign matter separation and removal device separates the raw seaweed from the foreign matter by utilizing the rotation of the rotating plate and the clearance;
A collet is provided as a shaft stopper means, which is fitted and supported in a gap formed by a rotating shaft suspended from the inner bottom surface of the sorting casing and an outer circumferential surface of the rotating shaft and an axial hole of the rotating plate, and the collet has a split groove in the axial direction, a tapered portion at the front end portion, and/or a relief hole at the rear end portion, and/or a key groove facing the axial direction,
The sizes of the insertion opening portion (7a1) and the terminal opening portion (7a2) provided in the axial hole are
The insertion opening portion (7a1) is greater than the terminal opening portion (7a2),
The maximum diameter of the tapered portion (401) of the collet is at least larger than the diameter of the insertion opening portion (7a1) of the axial hole,
A single-stage and/or multi-stage narrowing portion (405) is provided on the rear end side of the tapered portion (401) of the collet.
A raw seaweed foreign matter separation and removal device characterized by the above. The raw seaweed foreign matter separating and removing device according to claim 1,
The rotating shaft supports the rotating plate, which is fitted and supported so as to form a clearance between the inner surface (3d) of a circular hole that opens from the surface (3a) of the sorting casing toward the back surface (3b), and the inner surface (3d) and the outer surface (7b) of the rotating plate, or a clearance between the inner surface (5d) of a circular hole that opens from the surface (5a) of the sorting case ring provided in the sorting casing toward the back surface (5b) and the outer surface (7b) of the rotating plate, and the collet, which is the shaft stopping means, is fitted and supported in the gap formed between the outer surface of the rotating shaft and the shaft hole of the rotating plate, and the rotating shaft is inserted into and supported by the shaft hole of the rotating plate. The structure of the rotating shaft and shaft hole of the raw seaweed foreign matter separation and removal device described in claim 2, wherein the shaft stopper means is a collet for gripping the rotating shaft. The structure of the rotating shaft and shaft hole of the raw seaweed foreign matter separation and removal device described in claim 3, wherein the collet described in claim 3 is configured to have an axial split groove, a tapered portion, and/or a key groove. The structure of the rotating shaft and shaft hole of the raw seaweed foreign matter separation and removal device described in claim 4, wherein the collet described in claim 4 is configured with an escape hole.