JPH0730983B2 - Blades in ice making equipment - Google Patents

Blades in ice making equipment

Info

Publication number
JPH0730983B2
JPH0730983B2 JP1343173A JP34317389A JPH0730983B2 JP H0730983 B2 JPH0730983 B2 JP H0730983B2 JP 1343173 A JP1343173 A JP 1343173A JP 34317389 A JP34317389 A JP 34317389A JP H0730983 B2 JPH0730983 B2 JP H0730983B2
Authority
JP
Japan
Prior art keywords
blade
ice making
ice
strength member
inner pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP1343173A
Other languages
Japanese (ja)
Other versions
JPH03204577A (en
Inventor
勇三 佐近
斉和 三宅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Priority to JP1343173A priority Critical patent/JPH0730983B2/en
Publication of JPH03204577A publication Critical patent/JPH03204577A/en
Publication of JPH0730983B2 publication Critical patent/JPH0730983B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、主に冷房機の冷熱源として使用されるスラリ
ー状の氷を製造するための製氷装置のブレードに関す
る。
Description: TECHNICAL FIELD The present invention relates to a blade of an ice making device for producing ice in a slurry state, which is mainly used as a cold heat source of an air conditioner.

(従来の技術) 従来、この種製氷装置として、例えば特公昭44−29026
号公報に記載されたものが知られており、この公報記載
のものは、冷媒が流通される外管の内部に、製氷用溶液
を流通させる内管を配設すると共に、該内管内に、その
内面に常時接触する複数のブレードをもつ回転体を回転
自由に支持して、前記外管内の冷媒で前記内管内の製氷
用溶液を冷却して、その内面に氷を生成させ、この氷を
前記回転体に伴う各ブレードの回動で強制的に掻取るよ
うにしている。
(Prior Art) Conventionally, as this type of ice making device, for example, Japanese Patent Publication No. 44-29026
What is described in the publication is known, the one described in this publication, inside the outer pipe through which the refrigerant flows, an inner pipe through which a solution for ice making is circulated, and in the inner pipe, A rotor having a plurality of blades that are always in contact with the inner surface is rotatably supported, and the ice-making solution in the inner tube is cooled by the refrigerant in the outer tube to generate ice on the inner surface. The blades are forcibly scraped by the rotation of the blades associated with the rotating body.

また、以上のような製氷装置に使用されるブレードは、
一般的に、第7図で示したごとく、全体が耐摩耗性を有
する合成樹脂から成り、横長平板状とされたブレード本
体(A)の先端側に、前記内管の内面に接触される刃先
(B)を、基部側に筒状の軸受部(C)をそれぞれ一体
に形成しており、また、この軸受部(C)は、前記本体
(A)の基端側で長さ方向複数箇所を切欠き、これら各
切欠部(D)間に前記軸受部(C)の複数個を形成し
て、該各軸受部(C)を軸杆を介して前記回転体に揺動
可能に支持させるようにしている。
Also, the blade used in the above ice making device,
Generally, as shown in FIG. 7, the blade tip (A) is made of a synthetic resin entirely having abrasion resistance and is in the shape of a horizontally long flat plate, and the blade tip is in contact with the inner surface of the inner pipe. (B) is integrally formed with a cylindrical bearing portion (C) on the base side, and the bearing portion (C) is located at a plurality of positions in the longitudinal direction on the base end side of the main body (A). A plurality of the bearing portions (C) are formed between the respective notch portions (D), and the respective bearing portions (C) are swingably supported by the rotating body via the shaft rod. I am trying.

(発明が解決しようとする課題) 所で、以上のブレードは、全体が合成樹脂で形成され、
しかも、前記本体(A)の基部側に複数を切欠部(D)
が設けられ、該各切欠部(D)間に前記軸受部(C)の
複数個が形成されているため、内部応力による歪みなど
により、同図の仮想線で示したごとく、ブレードの全体
が前記各切欠部(D)側を中心に湾曲状に変形したり、
また、ブレード全体の強度が比較的弱いために、前記刃
先(B)で前記内間内面に生成した氷を掻取るとき、第
8図に示したごとく、ブレード全体が厚み方向に湾曲状
に変形したりすることがあり、これらブレードの変形が
原因で、前記刃先(B)の直線性が損なわれ、氷の掻取
り時に、該刃先(B)と前記内間内面との間に隙間が発
生し、この刃先(B)による氷の掻取りが不完全となっ
て、該氷が成長して前記内管内面に氷結を生じ、この氷
結の発生で前記ブレードを回動させるモータのオーバー
ロードを招いたり、ややもすると前記ブレードの凍結ロ
ックを引起して、該ブレードの破損を招いたりすること
があった。
(Problems to be solved by the invention) By the way, the above blade is entirely made of synthetic resin,
Moreover, a plurality of notches (D) are provided on the base side of the main body (A).
Are provided and a plurality of the bearing portions (C) are formed between the respective cutout portions (D), the entire blade is, as shown by the phantom line in the figure, due to distortion due to internal stress or the like. It is deformed into a curved shape around the notch (D) side,
Further, since the strength of the entire blade is relatively weak, when scraping off the ice generated on the inner surface of the inner space by the cutting edge (B), the entire blade is deformed into a curved shape in the thickness direction as shown in FIG. Due to the deformation of these blades, the linearity of the cutting edge (B) is impaired, and when scraping ice, a gap is generated between the cutting edge (B) and the inner surface of the inner space. However, the scraping of the ice by the blade edge (B) is incomplete, the ice grows and causes freezing on the inner surface of the inner tube, and the occurrence of this freezing causes an overload of the motor for rotating the blade. In some cases, this may cause the blade to freeze-lock, resulting in damage to the blade.

本発明は以上のような問題に鑑みてなしたもので、その
目的は、前記ブレード本体の変形などを招いたりするこ
となく、前記刃先の直線性を補償して、前記内管内面に
生成した氷を確実かつ円滑に掻取ることができ、凍結ロ
ックやモータのオーバーロードなどを引起すことがない
ブレードを提供することにある。
The present invention has been made in view of the above problems, and its purpose is to compensate for the linearity of the blade edge without causing deformation of the blade body and to generate the inner surface of the inner tube. (EN) It is possible to provide a blade capable of reliably and smoothly scraping ice and not causing freeze lock, overload of a motor, or the like.

(課題を解決するための手段) 上記目的を達成するために、本発明では、製氷用溶液を
流通させる内管(2)の内面に接触して回動する製氷装
置におけるブレードにおいて、耐摩耗性を有する合成樹
脂から成るブレード本体(31)に、前記内管内面と接触
する刃先(32)の直線性を補償する金属製板状強度メン
バー(5)を埋設したことを特徴とするものである。
(Means for Solving the Problems) In order to achieve the above object, in the present invention, a blade in an ice making device that rotates by contacting with an inner surface of an inner pipe (2) through which an ice making solution is circulated is worn-resistant. A metal plate-shaped strength member (5) for compensating the linearity of the cutting edge (32) in contact with the inner surface of the inner tube is embedded in the blade body (31) made of a synthetic resin having the above. .

また、製氷装置のブレードは、金属製板状強度メンバー
(5)に軸受部(34)を一体に形成して、前記強度メン
バー(5)に耐摩耗性を有する合成樹脂から成るブレー
ド本体(31)を取付けて構成してもよい。
Further, the blade of the ice making device has a blade body (31) formed by integrally forming a bearing portion (34) on a metal plate-shaped strength member (5), and the strength member (5) being made of a synthetic resin having wear resistance. ) May be attached.

(作用) 前記金属製板状強度メンバー(5)をブレード本体(3
1)内に埋設したことにより、該ブレード本体(31)の
強度が強化され、その変形がなくなって、前記刃先(3
2)の直接性が補償されるのであり、従って、刃先(3
2)で前記内管(2)の内面に生成した氷が確実かつ円
滑に掻取られ、ブレードの凍結ロックや、該ブレードを
回動させるモータのオーバーロードなどを招くことがな
いのである。
(Function) The metal plate-shaped strength member (5) is attached to the blade main body (3
By embedding it inside 1), the strength of the blade body (31) is strengthened and its deformation disappears, and the blade edge (3
The directness of 2) is compensated, and therefore the cutting edge (3
The ice generated on the inner surface of the inner tube (2) in 2) is reliably and smoothly scraped off, and the freeze lock of the blade and the overload of the motor for rotating the blade are not caused.

また、前記金属製板状強度メンバー(5)に軸受部(3
4)を一体に形成し、前記強度メンバー(5)に耐摩耗
性を有する合成樹脂から成るブレード本体(31)の取付
けて前記ブレードを構成するときには、以上の場合と同
様の作用効果が得られるだけではなく、前記ブレード本
体(31)の刃先(32)が摩耗したようなとき、この本体
(31)のみの交換が簡単に行える。
In addition, the metal plate-shaped strength member (5) has a bearing portion (3
4) is integrally formed, and when the blade member is formed by attaching the blade body (31) made of a synthetic resin having abrasion resistance to the strength member (5), the same effect as the above case can be obtained. Not only that, but when the blade edge (32) of the blade body (31) is worn, only this body (31) can be easily replaced.

(実施例) 第5図及び第6図に示した製氷装置は、横長状とされた
外管(1)と、該外管(1)の内部に同心状に貫通支持
された内管(2)とを備え、前記外管(1)に複数の冷
媒取入口(11)と取出口(12)とを設けると共に、前記
内管(2)の軸方向両側に製氷用溶液の流入口(21)と
流出口(22)とを設ける一方、前記内管(2)内に、そ
の内面に接触するブレード(3)をもった回転体(4)
を回転自由に支持させている。
(Embodiment) The ice making device shown in FIG. 5 and FIG. 6 includes an outer tube (1) having a horizontally long shape and an inner tube (2) concentrically supported through the outer tube (1). ) And a plurality of refrigerant inlets (11) and outlets (12) are provided in the outer pipe (1), and the inlets (21) for the ice making solution are provided on both sides of the inner pipe (2) in the axial direction. ) And an outlet (22), and a rotor (4) having a blade (3) in contact with the inner surface of the inner tube (2)
Is supported to rotate freely.

また、前記回転体(4)の軸方向一側には、モータに連
結される駆動軸(41)を設けて、該駆動軸(41)で前記
回転体(4)の回転駆動を行うようにしている。
Further, a drive shaft (41) connected to a motor is provided on one side in the axial direction of the rotating body (4) so that the rotating body (4) is rotationally driven by the drive shaft (41). ing.

斯くして、前記内管(2)内に導入された製氷用溶液
を、該内管(2)と外管(1)との間に導入された冷媒
で冷却して、前記内管(2)の内面に氷を生成させ、こ
の氷を前記回転体(4)のブレード(3)で掻取り、前
記流出口(22)からスラリー状の氷として外部に取出す
のである。
Thus, the ice-making solution introduced into the inner pipe (2) is cooled by the refrigerant introduced between the inner pipe (2) and the outer pipe (1), and the inner pipe (2 ) Is generated on the inner surface of the), the ice is scraped off by the blade (3) of the rotating body (4), and the ice is taken out as slurry-like ice from the outlet (22).

しかして、以上の製氷装置に用いる前記ブレード(3)
を、次のように構成したのである。
Thus, the blade (3) used in the above ice making device
Was constructed as follows.

即ち、第1図及び第2図で明らかなごとく、前記ブレー
ド(3)の全体を、高密度ポリエチレンなどの耐摩耗性
をもつ合成樹脂で形成して、そのブレード本体(31)の
内部に、ステンレスなどの金属製板状強度メンバー
(5)を埋設し、この強度メンバー(5)で前記ブレー
ド本体(31)の強度を強化し、前記内管(2)の内面に
常時接触される刃先(32)の直線性を補償するようにし
たのである。
That is, as is clear from FIG. 1 and FIG. 2, the entire blade (3) is made of a synthetic resin having abrasion resistance such as high-density polyethylene, and the inside of the blade body (31) is A metal plate-shaped strength member (5) made of stainless steel or the like is embedded, and the strength of the blade body (31) is reinforced by the strength member (5), and a blade edge (which constantly contacts the inner surface of the inner pipe (2) ( The linearity of 32) was compensated.

具体的に説明すると、前記ブレード(3)は、横長平板
状とされたブレード本体(31)の先端側に、鋭角状とさ
れた前記刃先(32)を設けると共に、前記本体(31)の
基部側で、複数の切欠部(33)を挟んだ横方向両側に、
前記ブレード(3)を前記回転体(4)に揺動可能に支
持させる複数の筒状軸受部(34)を一体に形成するので
あり、斯く構成したブレード(3)の前記本体(31)内
に、前記軸受部(34)の近くから刃先(32)にかけて、
波形状に屈曲された前記強度メンバー(5)を埋設し、
該メンバー(5)で前記本体(31)の変形を阻止して、
前記刃先(32)の直接性を補償し、該刃先(32)により
前記内管(2)の内面に生成された氷を確実かつ円滑に
掻取るのである。
More specifically, the blade (3) is provided with the blade edge (32) having an acute angle on the tip side of a blade body (31) having a horizontally long flat plate shape, and the base portion of the body (31). Side, on both sides in the lateral direction across the notches (33),
A plurality of cylindrical bearing portions (34) for swingably supporting the blade (3) on the rotating body (4) are integrally formed, and the inside of the main body (31) of the blade (3) configured as described above. Then, from near the bearing part (34) to the cutting edge (32),
Embedding the strength member (5) bent in a wave shape,
The member (5) prevents deformation of the main body (31),
By compensating for the directness of the cutting edge (32), the ice generated on the inner surface of the inner pipe (2) by the cutting edge (32) can be reliably and smoothly scraped off.

また、前記ブレード(3)は、第3図及び第4図で示し
たごとく、前記軸受部(34)を設けることなく矩形平板
状としたブレード本体(31)と、横長平板状の強度メン
バー(5)とを用い、このメンバー(5)の基部側一部
を筒状に巻回させて、該メンバー(5)側に前記軸受部
(34)を一体に設け、前記メンバー(5)の軸受部(3
4)とは反対側を、前記本体(31)内に挿入して、その
挿入部位をビス(51)などで固定するようにしてもよ
く、斯くするときには、前記メンバー(5)で前記刃先
(32)の直線性を補償できながら、この刃先(32)の摩
耗したようなとき、前記ビス(51)の着脱操作で前記本
体(31)のみの交換作業が簡単に行える。
As shown in FIGS. 3 and 4, the blade (3) has a rectangular flat plate-shaped blade body (31) without the bearing portion (34) and a horizontally long flat plate-shaped strength member ( 5) is used to wind a part of the member (5) on the base side into a tubular shape, and the bearing portion (34) is integrally provided on the member (5) side. Division (3
The side opposite to 4) may be inserted into the main body (31), and the insertion site may be fixed with a screw (51) or the like. In such a case, the blade tip ( Even if the linearity of 32) can be compensated, when the cutting edge (32) is worn, the exchanging operation of the screw (51) can easily replace only the main body (31).

また、第6図の実施例においては、前記回転体(4)の
外周壁部で相対向する位置に、2つの支持体(6)
(6)を半径方向外方に向けて一体に突設すると共に、
前記強度メンバー(5)を備えた2枚のブリード(3)
を使用して、その各刃先(32)が前記回転体(4)の回
転方向前方を指向するように、前記各ブレード(3)に
設けた軸受部(34)を前記各支持体(6)の先端部に軸
杆(7)を介して揺動可能に支持する一方、前記各支持
体(6)と各ブレード(3)との間にそれぞれスプリン
グ(8)を介装させ、該各スプリング(8)で前記各ブ
レード(3)の刃先(32)を前記内管(2)の内面に常
時接触させるようにしている。
Further, in the embodiment shown in FIG. 6, two supporting members (6) are provided at positions facing each other on the outer peripheral wall of the rotating member (4).
(6) is integrally projected toward the outside in the radial direction, and
Two bleeds (3) with the strength members (5)
Using the bearings (34) provided on the blades (3) such that the blade edges (32) of the blades (32) are directed forward in the rotation direction of the rotating body (4). The tip end of each of the springs is swingably supported via a shaft rod (7), while a spring (8) is interposed between each support (6) and each blade (3). In (8), the blade tip (32) of each blade (3) is always brought into contact with the inner surface of the inner pipe (2).

(発明の効果) 以上説明したように、本発明のブレードでは、耐摩耗性
を有する合成樹脂から成るブレード本体(31)内に、内
管(2)の内面に常時接触される刃先(32)の直線性を
補償する金属製板状強度メンバー(5)を埋設したか
ら、前記ブレード本体(31)の刃先(32)で前記内管
(2)の内面に生成した氷を確実かつ円滑に掻取ること
が可能となり、ブレードの凍結ロックや、該ブレードを
回動させるモータのオーバーロードなどを確実に防止で
きるに至ったのである。
(Effects of the Invention) As described above, in the blade of the present invention, the blade tip (32) that is constantly in contact with the inner surface of the inner pipe (2) is provided in the blade body (31) made of a synthetic resin having wear resistance. Since the metal plate-shaped strength member (5) for compensating the linearity of the inner pipe (2) is buried, the ice generated on the inner surface of the inner pipe (2) is reliably and smoothly scratched by the cutting edge (32) of the blade body (31). Therefore, it is possible to reliably prevent the freeze lock of the blade and the overload of the motor for rotating the blade.

また、前記金属製板状強度メンバー(5)に軸受部(3
4)を一体に形成し、前記強度メンバー(5)に前記ブ
レード本体(31)を取付けるときには、以上の場合と同
様に、前記本体(31)の刃先(32)の前記内管(2)の
内面に生成した氷を確実かつ円滑に掻取ることができな
がら、前記刃先(32)が摩耗したようなとき、前記本体
(31)のみを簡単に交換できるのである。
In addition, the metal plate-shaped strength member (5) has a bearing portion (3
4) is integrally formed, and when the blade body (31) is attached to the strength member (5), the blade tip (32) of the body (31) is attached to the inner pipe (2) in the same manner as above. While the ice generated on the inner surface can be scraped off reliably and smoothly, only the main body (31) can be easily replaced when the cutting edge (32) is worn.

【図面の簡単な説明】[Brief description of drawings]

第1図は本発明にかかるブレードの正面図、第2図は同
ブレードの拡大側断面図、第3図は他の発明にかかるブ
レードの正面図、第4図は同ブレードの拡大側断面図、
第5図は製氷装置の全体構造を示す一部切欠正面図、第
6図は同製氷装置の側断面図、第7図及び第8図は従来
例を説明する説明図である。 (2)……内管 (31)……ブレード本体 (32)……刃先 (34)……軸受部 (5)……強度メンバー
FIG. 1 is a front view of a blade according to the present invention, FIG. 2 is an enlarged side sectional view of the blade, FIG. 3 is a front view of a blade according to another invention, and FIG. 4 is an enlarged side sectional view of the blade. ,
FIG. 5 is a partially cutaway front view showing the entire structure of the ice making device, FIG. 6 is a side sectional view of the ice making device, and FIGS. 7 and 8 are explanatory views for explaining a conventional example. (2) …… Inner tube (31) …… Blade body (32) …… Blade edge (34) …… Bearing section (5) …… Strength member

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】製氷用溶液を流通させる内管(2)の内面
に接触して回動する製氷装置におけるブレードであっ
て、耐摩耗性を有する合成樹脂から成るブレード本体
(31)に、前記内管内面と接触する刃先(32)の直線性
を補償する金属製板状強度メンバー(5)を埋設したこ
とを特徴とする製氷装置におけるブレード。
1. A blade in an ice making device which rotates by contacting an inner surface of an inner pipe (2) for circulating an ice making solution, wherein the blade body (31) is made of a synthetic resin having abrasion resistance, A blade in an ice making device, characterized in that a metal plate-shaped strength member (5) for compensating the linearity of the blade edge (32) contacting the inner surface of the inner pipe is embedded.
【請求項2】製氷用溶液を流通させる内管(2)の内面
に接触して回動する製氷装置におけるブレードであっ
て、金属製板状強度メンバー(5)に軸受部(34)を一
体に形成して、前記強度メンバー(5)に耐摩耗性を有
する合成樹脂から成るブレード本体(31)を取付けたこ
とを特徴とする製氷装置におけるブレード。
2. A blade in an ice making device which rotates by contacting an inner surface of an inner pipe (2) through which an ice making solution is circulated, wherein a metal plate-shaped strength member (5) and a bearing portion (34) are integrated with each other. And a blade body (31) made of synthetic resin having wear resistance attached to the strength member (5).
JP1343173A 1989-12-28 1989-12-28 Blades in ice making equipment Expired - Lifetime JPH0730983B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1343173A JPH0730983B2 (en) 1989-12-28 1989-12-28 Blades in ice making equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1343173A JPH0730983B2 (en) 1989-12-28 1989-12-28 Blades in ice making equipment

Publications (2)

Publication Number Publication Date
JPH03204577A JPH03204577A (en) 1991-09-06
JPH0730983B2 true JPH0730983B2 (en) 1995-04-10

Family

ID=18359479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1343173A Expired - Lifetime JPH0730983B2 (en) 1989-12-28 1989-12-28 Blades in ice making equipment

Country Status (1)

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JP (1) JPH0730983B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9482461B2 (en) 2013-08-22 2016-11-01 King Fahd University Of Petroleum And Minerals Coolant heat exchanger having a scraper for each heat exchange interface surface
JP6262121B2 (en) * 2014-11-11 2018-01-17 アイスマン株式会社 Artificial snowfall equipment

Also Published As

Publication number Publication date
JPH03204577A (en) 1991-09-06

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