JPH0738251Y2 - Flat belt pulley - Google Patents
Flat belt pulleyInfo
- Publication number
- JPH0738251Y2 JPH0738251Y2 JP1989109079U JP10907989U JPH0738251Y2 JP H0738251 Y2 JPH0738251 Y2 JP H0738251Y2 JP 1989109079 U JP1989109079 U JP 1989109079U JP 10907989 U JP10907989 U JP 10907989U JP H0738251 Y2 JPH0738251 Y2 JP H0738251Y2
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- flat belt
- central portion
- hand thread
- groove
- 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
Links
Landscapes
- Pulleys (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、平ベルトによる搬送コンベヤの平ベルトの中
心部がプーリの中心部から外れるいわゆる平ベルトの蛇
行現象を防止し、かつ動力の伝達を確実に行うための平
ベルト用プーリに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention prevents the so-called flat belt meandering phenomenon in which the central portion of the flat belt of the conveyer conveyor by the flat belt deviates from the central portion of the pulley and transmits power. The present invention relates to a flat belt pulley for reliably performing.
（従来の技術） 従来、Ｖ溝付きプーリまたはクラウン加工されたプーリ
等によって、平ベルトの蛇行が防止されていた。第２図
はＶ溝付きプーリの断面構成図を示す。Ｖ溝付きプーリ
１は、１個のＶ溝プーリ部３と、２個の外側プーリ５お
よび２個の接続円管７とからなる。Ｖ溝プーリ部３は、
厚肉円管状に形成されその外周面の中央部に１個のＶ溝
９と、その両端部に２個の切欠き溝11とが加工されてい
る。(Prior Art) Conventionally, meandering of a flat belt has been prevented by a pulley with a V groove or a pulley having a crown. FIG. 2 shows a sectional configuration diagram of a V-grooved pulley. The V-groove pulley 1 is composed of one V-groove pulley portion 3, two outer pulleys 5 and two connecting circular pipes 7. The V-groove pulley section 3 has
The V-shaped groove 9 is formed in a thick-walled cylindrical shape, and one V-shaped groove 9 is formed in the central portion of the outer peripheral surface thereof, and two notched grooves 11 are formed at both ends thereof.
外側プーリ５は、厚肉円板状に形成されその中心部に図
示されない軸体を貫通する貫通孔13と、外周面の１端に
切欠き溝15とが加工されている。接続円管７は、切り欠
き溝11,15の深さに相当する肉厚寸法に加工されてい
る。The outer pulley 5 is formed in a thick disc shape, and has a through hole 13 penetrating a shaft body (not shown) in the center thereof and a notch groove 15 formed at one end of the outer peripheral surface. The connecting circular pipe 7 is machined to have a wall thickness corresponding to the depth of the cutout grooves 11 and 15.
この１個のＶ溝プーリ部３の両側に、それぞれ外側プー
リ５を配置し、接続円管７をそれぞれ切り欠き溝11,15
に嵌め込み、この嵌め込み部分を溶接することにより、
一体化されたＶ溝付きプーリ１が形成される。Outer pulleys 5 are arranged on both sides of this one V-groove pulley portion 3, and the connecting circular pipe 7 is cut out into grooves 11 and 15 respectively.
By fitting it in and welding this fitting part,
An integrated V-grooved pulley 1 is formed.
第３図はクラウニング加工されたプーリの断面構成図を
示す。クラウニングプーリ17は、１個のプーリ本体19
と、２個の外側リング21とからなる。プーリ本体19は、
円筒状に形成され、外周面を中央部の径Ａが両端部の径
Ｂに比較して僅かに大きく、適宜円弧状にクラウニング
加工され、両端に外側リング21が挿入され固定されて、
一体化されたクラウニングプーリ17が形成される。な
お、23は外側リング19の中心部に設けられた貫通孔で、
図示されない軸体が貫通してクラウニングプーリ17を回
転自在とする。FIG. 3 shows a sectional configuration diagram of a crowned pulley. The crowning pulley 17 is one pulley body 19
And two outer rings 21. The pulley body 19
The outer peripheral surface is formed in a cylindrical shape, the diameter A of the central portion is slightly larger than the diameter B of both ends, and the outer ring 21 is inserted and fixed at both ends by crowning appropriately.
An integrated crowning pulley 17 is formed. Incidentally, 23 is a through hole provided at the center of the outer ring 19,
A shaft (not shown) penetrates to make the crowning pulley 17 rotatable.
（考案が解決しようとする課題） ところで、Ｖ溝付きプーリ３は、Ｖ溝プーリ部３と外側
プーリ部５および連結管７との３分割からなり、その製
作には溶接作業が必要で、製作工数および製作コストが
過大になるという欠点があった。(Problems to be solved by the invention) By the way, the V-grooved pulley 3 is divided into three parts, that is, the V-groove pulley portion 3, the outer pulley portion 5 and the connecting pipe 7, and the welding work is required for its production. There is a drawback that man-hours and manufacturing costs become excessive.
また、クラウニングプーリ17は、その構造が簡単である
が、クラウニング加工が困難で、しかもベルト幅および
ベルト長さによっては、蛇行防止の効果がないこともあ
った。Further, although the crowning pulley 17 has a simple structure, it is difficult to perform the crowning process, and depending on the belt width and the belt length, the effect of preventing the meandering may not be obtained.
本考案の目的は、上記の問題点を改善するために、その
構成が簡単で、蛇行防止効果が大きい平ベルト用プーリ
を提供することである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a flat belt pulley having a simple structure and a large meandering prevention effect in order to solve the above problems.
（課題を解決するための手段） 前述のごとき従来の問題に鑑みて、本考案は、プーリの
軸方向の中央部に、平ベルトと比較的広い範囲に亘って
面接触する動力伝達部を設け、上記プーリの一端から前
記中央部に向って右ねじ溝を、他端から中央部に向って
左ねじ溝を形成した構成である。(Means for Solving the Problems) In view of the conventional problems as described above, the present invention provides a power transmission unit that is in surface contact with a flat belt over a relatively wide area at the center of the pulley in the axial direction. A right-hand thread groove is formed from one end of the pulley toward the central portion, and a left-hand thread groove is formed from the other end toward the central portion.
（作用） 上記構成により、左右のねじ溝の作用によって平ベルト
は左右両側から中央部に又は両側へ寄せられる傾向にあ
り、蛇行が防止される。また、平ベルトとプーリは、中
央部において比較的広い範囲に亘って面接触するので、
動力の伝達が確実に行われる。(Operation) With the above configuration, the flat belt tends to be moved from the left and right sides toward the central portion or both sides by the action of the left and right screw grooves, and the meandering is prevented. Further, since the flat belt and the pulley are in surface contact over a relatively wide area in the central portion,
Power transmission is ensured.
（実施例） 以下、本考案の実施例を図面に基づき詳細に説明する。Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.
第１図は本考案の一実施例の概略構成図を示す。プーリ
25は矢印方向Ｐから見て右回転とすれば、左端からプー
リ中央部27に向って右ねじ溝29が加工され、右端からプ
ーリ中央部27に向って左ねじ溝31が加工されている。こ
のプーリ25の表面に加工されたねじ形の溝29,31によっ
て、図示されない接触する平ベルトをプーリ中央部27の
方向へ寄せる押圧力が発生し、この押圧力により前記平
ベルトの中心部がプーリ中心部27から外れるいわゆるベ
ルトの蛇行現象が防止される。FIG. 1 shows a schematic configuration diagram of an embodiment of the present invention. Pulley
When 25 is rotated clockwise when viewed from the arrow P, a right-hand thread groove 29 is machined from the left end toward the pulley center portion 27, and a left-hand thread groove 31 is machined from the right end toward the pulley center portion 27. The screw-shaped grooves 29, 31 formed on the surface of the pulley 25 generate a pressing force for moving the contacting flat belt (not shown) toward the pulley central portion 27, and the pressing force causes the central portion of the flat belt to move. The so-called meandering phenomenon of the belt, which deviates from the pulley center portion 27, is prevented.
なお、プーリ25が逆回転（左ねじ方向）の場合には、左
端からプーリ中央部27に向って左ねじ溝31が加工され、
右端からプーリ中央部27に向って右ねじ溝29が加工され
る。When the pulley 25 rotates in the reverse direction (left-hand thread direction), the left-hand thread groove 31 is machined from the left end toward the pulley central portion 27,
A right-hand thread groove 29 is machined from the right end toward the pulley central portion 27.
このように厚肉鋼管を、プーリ25の両端からプーリ中央
部27に向って、ねじ溝方向が異なるねじ溝切りを旋盤加
工することにより、その製作が容易で、しかもベルトの
蛇行防止が簡単に実現し得る。In this way, the thick-walled steel pipe is machined from both ends of the pulley 25 toward the pulley central portion 27 by lathe-threading with different thread groove directions, so that it is easy to manufacture and the belt meandering prevention is easy. Can be realized.
前記中央部27は、第１図より明らかなように、円柱形状
に形成してあって、平ベルト（図示省略）と比較的広い
範囲（プーリ全長の約1/4位の範囲）に亘って面接触す
る動力伝達部に構成してある。As is apparent from FIG. 1, the central portion 27 is formed in a cylindrical shape, and extends over a relatively wide range (about 1/4 of the total length of the pulley) with a flat belt (not shown). It is configured as a power transmission unit that makes surface contact.
（考案の効果） 以上のごとき実施例の説明より理解されるように、要す
るに本考案は、プーリ（25）の軸方向の中央部（27）
に、平ベルトと比較的広い範囲に亘って面接触する動力
伝達部を設け、上記プーリ（25）の一端から前記中央部
（27）に向って右ねじ溝（29）を、他端から中央部（2
7）に向って左ねじ溝（31）を形成した構成である。(Effects of the Invention) As will be understood from the above description of the embodiments, the present invention is, in short, the central portion (27) of the pulley (25) in the axial direction.
Is provided with a power transmission portion that makes surface contact with the flat belt over a relatively wide range, and a right-hand thread groove (29) is formed from one end of the pulley (25) toward the central portion (27), and the other end is formed in the center. Department (2
The left-hand thread groove (31) is formed toward 7).
上記構成より明らかなように、本考案においては、例え
ば平ベルトを中央部27へ寄せるための左右のねじ溝29,3
1を備えているから、平ベルトの蛇行を防止することが
できることは勿論であるが、上記中央部27は、平ベルト
と比較的広い範囲に亘って面接触する動力伝達部に形成
してあるから、平ベルトからプーリ25へ、又はプーリ25
から平ベルトへの動力の伝達を、滑りを生じることなし
に確実に行うことができるものである。As is apparent from the above configuration, in the present invention, for example, the left and right screw grooves 29, 3 for moving the flat belt to the central portion 27 are provided.
Since the flat belt is provided with 1, it is possible to prevent the meandering of the flat belt, but the central portion 27 is formed as a power transmission portion that makes surface contact with the flat belt over a relatively wide range. From the flat belt to the pulley 25 or the pulley 25
Power can be reliably transmitted from the flat belt to the flat belt without causing slippage.
第１図は本考案の一実施例の概略構成図、第２図はＶ溝
付きプーリの断面構成図、第３図はクラウニング加工さ
れたプーリの断面構成図である。 25……プーリ 27……プーリ中央部 29……右ねじ溝 31……左ねじ溝FIG. 1 is a schematic block diagram of an embodiment of the present invention, FIG. 2 is a sectional block diagram of a V-grooved pulley, and FIG. 3 is a sectional block diagram of a crowned pulley. 25 …… Pulley 27 …… Pulley central part 29 …… Right screw groove 31 …… Left screw groove
Claims (1)
平ベルトと比較的広い範囲に亘って面接触する動力伝達
部を設け、上記プーリ（25）の一端から前記中央部（2
7）に向って右ねじ溝（29）を、他端から中央部（27）
に向って左ねじ溝（31）を形成した構成であることを特
徴とする平ベルト用プーリ。1. A pulley (25) has a central portion (27) in the axial direction,
A power transmission section that makes surface contact with the flat belt over a relatively wide range is provided, and one end of the pulley (25) is connected to the central section (2).
7) to the right-hand thread groove (29), from the other end to the central part (27)
A flat belt pulley characterized in that a left-hand thread groove (31) is formed toward the front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989109079U JPH0738251Y2 (en) | 1989-09-20 | 1989-09-20 | Flat belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989109079U JPH0738251Y2 (en) | 1989-09-20 | 1989-09-20 | Flat belt pulley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0349213U JPH0349213U (en) | 1991-05-14 |
| JPH0738251Y2 true JPH0738251Y2 (en) | 1995-08-30 |
Family
ID=31657682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989109079U Expired - Lifetime JPH0738251Y2 (en) | 1989-09-20 | 1989-09-20 | Flat belt pulley |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738251Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50130082U (en) * | 1974-04-10 | 1975-10-25 | ||
| JPS5251670A (en) * | 1975-10-20 | 1977-04-25 | Nippon Steel Corp | Pulley for belt conveyor |
-
1989
- 1989-09-20 JP JP1989109079U patent/JPH0738251Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0349213U (en) | 1991-05-14 |
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