JPS62173143A - Ball screw shaft with built-in heat pipe - Google Patents
Ball screw shaft with built-in heat pipeInfo
- Publication number
- JPS62173143A JPS62173143A JP1617986A JP1617986A JPS62173143A JP S62173143 A JPS62173143 A JP S62173143A JP 1617986 A JP1617986 A JP 1617986A JP 1617986 A JP1617986 A JP 1617986A JP S62173143 A JPS62173143 A JP S62173143A
- Authority
- JP
- Japan
- Prior art keywords
- screw shaft
- ball screw
- heat pipe
- built
- heat
- 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.)
- Pending
Links
Landscapes
- Transmission Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、ヒー） ｉ４イグ内蔵のが−ルねじ軸に関
するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a screw shaft with a built-in heater.
（従来の技術）
工作機械等の送りねじとして用いられるボールねじ軸は
、摺動摩擦熱等の熱的要因により微小の変形が生じて高
精度の送りを確保できないことがある。このため、ボー
ルねじ軸を冷却して常に一定温度に保持する必要があり
、従来の冷却手段としては、例えばボールねじ軸内に冷
却水を通し、熱交換器を介して循環使用させることが行
われていた。(Prior Art) Ball screw shafts used as feed screws in machine tools, etc. may undergo minute deformation due to thermal factors such as sliding friction heat, making it impossible to ensure high precision feed. For this reason, it is necessary to cool the ball screw shaft and maintain it at a constant temperature. Conventional cooling methods include, for example, passing cooling water through the ball screw shaft and circulating it through a heat exchanger. I was worried.
（発明が解決しようとする問題点）
前記従来の冷却手段によると、多量の水を必要とし、比
較的高価な熱交換器も設置しなければならないので、全
体としてコスト高になる欠点があった。また、冷却水は
地下水を用いることが考えられるが、水あか等の悪影響
が心配され、必ずしも最適なものではない。さらに、冷
却水による場合は、ゴールねじ軸を均一に冷却すること
が困難であり、高精度な送りを保証することはできなか
った。(Problems to be Solved by the Invention) According to the conventional cooling means, a large amount of water is required and a relatively expensive heat exchanger must be installed, so there is a drawback that the overall cost is high. . Furthermore, it is conceivable to use underground water as the cooling water, but this is not necessarily optimal as there are concerns about negative effects such as water scale. Furthermore, when cooling water is used, it is difficult to uniformly cool the goal screw shaft, and highly accurate feeding cannot be guaranteed.
このような従来技術の問題点を解決する目的でなされた
のがこの発明であり、低コストで冷却性能にすぐれ、し
かもゴールねじ軸を均一に冷却できるようにした冷却手
段を備えたボールねじ軸を提供しようとするものである
。This invention was made to solve the problems of the prior art, and provides a ball screw shaft that is low cost, has excellent cooling performance, and is equipped with a cooling means that can uniformly cool the goal screw shaft. This is what we are trying to provide.
（問題点を解決するための手段）
このような目的を達成する手段として、この発明は、ボ
ールねじ軸の内部に孔を形成し、この孔にヒートパイプ
を挿着したことを要旨とするものである。(Means for Solving the Problems) As a means for achieving such an object, the gist of the present invention is to form a hole inside the ball screw shaft and insert a heat pipe into the hole. It is.
（実施例） 以下、この発明の実施例を具体的に説明する。(Example) Examples of the present invention will be described in detail below.
第１図において、ｌはボールねじ軸であり、＆ −ルｌ
ａを介してナツト２が螺合され、このナツト 。In Fig. 1, l is the ball screw shaft, & -le l
Nut 2 is screwed together through a.
は図示を省略したが工作機械のテーブル等に固定され、
ボールねじ軸１の回転により移動されるようになってい
る。ボールねじ軸１は、内部に孔１ｂが軸線方向に沿っ
て貫設され、この孔にヒート・クイズ３を挿着し、孔の
両端部は栓体４により閉塞しである。５は前記ボールね
じ軸ｌの一方の端部の外周に設けられた放熱用のフィン
であり、フード６により囲まれ、冷却部７が形成されて
いる。Although not shown, it is fixed to the machine tool table, etc.
It is adapted to be moved by rotation of the ball screw shaft 1. The ball screw shaft 1 has a hole 1b extending in the axial direction, a heat quiz 3 is inserted into the hole, and both ends of the hole are closed with plugs 4. A heat radiation fin 5 is provided on the outer periphery of one end of the ball screw shaft l, and is surrounded by a hood 6 to form a cooling section 7.
なお、８はボールねじ軸１の両端部を支持する軸受であ
る。Note that 8 is a bearing that supports both ends of the ball screw shaft 1.
この発明に係るボールねじ軸は、前記のように構成され
、ヒートパイプ３によりぜ−ルねじ軸ｌの各部で発生し
た熱が吸収されると共に、前記放熱用のフィン５を備え
た冷却部７で冷却され、この動作を繰返すことによりゴ
ールねじ軸１の全体が均一の温度に保持されることにな
る。このとき、フィン５はボールねじ軸１の回転にとも
なってファンのように回転し、冷却部７内の空気の入れ
換えを自動的に行なうので、冷却部７での冷却作用を効
率良く行なうことができる。The ball screw shaft according to the present invention is constructed as described above, and the heat generated in each part of the ball screw shaft l is absorbed by the heat pipe 3, and the cooling part 7 equipped with the heat dissipation fins 5 By repeating this operation, the entire goal screw shaft 1 is maintained at a uniform temperature. At this time, the fins 5 rotate like a fan as the ball screw shaft 1 rotates, and the air in the cooling section 7 is automatically exchanged, so that the cooling effect in the cooling section 7 can be performed efficiently. can.
前記実施例では、ゾールねじ軸１の中心に１本のヒート
パイプ３を挿着したものであるが、これに限定されず、
例えば複数本のヒートパイプを並設するようにしてもよ
い。ヒートパイプは、比較的安価で性能にすぐれ、ボー
ルねじ軸の孔に挿着するだけでよいので取付けが簡単で
、メンテナンスも容易である。In the above embodiment, one heat pipe 3 is inserted into the center of the Sol screw shaft 1, but the present invention is not limited to this.
For example, a plurality of heat pipes may be arranged in parallel. Heat pipes are relatively inexpensive, have excellent performance, and are easy to install and maintain because they only need to be inserted into a hole in a ball screw shaft.
（発明の効果）
以上説明したように、この発明は、ゴールねじ軸にヒー
トノやイブを内蔵させたので、ボールねじ軸に発生する
摩擦熱等を効率良く冷却することができ、しかもボール
ねじ軸全長に亘って均一な温度に保持できるので、工作
機械のテーブル等の送り精度を高く維持する効果を奏す
る。また、この発明によれば、冷却水、熱交換器が不要
なので、従来より低コストで実施できる。(Effects of the Invention) As explained above, in this invention, since the goal screw shaft has a built-in heat nozzle and eve, it is possible to efficiently cool the frictional heat generated in the ball screw shaft. Since the temperature can be maintained uniformly over the entire length, it is effective in maintaining high feeding accuracy of the table of the machine tool, etc. Further, according to the present invention, since cooling water and a heat exchanger are not required, it can be implemented at a lower cost than before.
第１図は、この発明の一実施例を示す概略破断面図であ
る。
１・・・・・・ボールねり、軸、ｌａ・・・・・・ゴー
ル、１ｂ・・・・・・孔、 ２・・・・・
・ナツト、３・・・・・・ヒートノぐイブ、 ４・・
・・・・栓体、５・・・・・・フィン、 ６・
・・・・・フード、７・・・・・・冷却部、 ８
・・・・・・軸受。
特許出願人 三井精機工業株式会社
、、、−７−ｊＱFIG. 1 is a schematic cutaway view showing an embodiment of the present invention. 1...ball bend, axis, la...goal, 1b...hole, 2...
・Natsuto, 3... Heat Nog Eve, 4...
... Plug body, 5 ... Fin, 6.
...Hood, 7...Cooling section, 8
······bearing. Patent applicant Mitsui Seiki Kogyo Co., Ltd., -7-jQ
Claims (1)
プ挿着したことを特徴とするヒートパイプ内蔵のボール
ねじ軸。A ball screw shaft with a built-in heat pipe, characterized in that a hole is formed inside the ball screw shaft, and a heat pipe is inserted into the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1617986A JPS62173143A (en) | 1986-01-28 | 1986-01-28 | Ball screw shaft with built-in heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1617986A JPS62173143A (en) | 1986-01-28 | 1986-01-28 | Ball screw shaft with built-in heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62173143A true JPS62173143A (en) | 1987-07-30 |
Family
ID=11909282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1617986A Pending JPS62173143A (en) | 1986-01-28 | 1986-01-28 | Ball screw shaft with built-in heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62173143A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010044498A (en) * | 2001-02-28 | 2001-06-05 | 정무길 | Cutting-working installations for freezing medium pipes having a precision transterring device |
| KR101017840B1 (en) * | 2008-10-23 | 2011-03-04 | (주)유지인트 | Ball screw chiller |
| CN107717625A (en) * | 2017-10-19 | 2018-02-23 | 西安交通大学 | A kind of radial rotary heat pipe structure for the cooling of high-speed electric main shaft internal chamber |
| JP2020051472A (en) * | 2018-09-25 | 2020-04-02 | 日本精工株式会社 | Ball screw |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237655B2 (en) * | 1984-01-24 | 1987-08-13 | Wacker Chemie Gmbh |
-
1986
- 1986-01-28 JP JP1617986A patent/JPS62173143A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237655B2 (en) * | 1984-01-24 | 1987-08-13 | Wacker Chemie Gmbh |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010044498A (en) * | 2001-02-28 | 2001-06-05 | 정무길 | Cutting-working installations for freezing medium pipes having a precision transterring device |
| KR101017840B1 (en) * | 2008-10-23 | 2011-03-04 | (주)유지인트 | Ball screw chiller |
| CN107717625A (en) * | 2017-10-19 | 2018-02-23 | 西安交通大学 | A kind of radial rotary heat pipe structure for the cooling of high-speed electric main shaft internal chamber |
| CN107717625B (en) * | 2017-10-19 | 2019-05-10 | 西安交通大学 | A Radial Rotating Heat Pipe Structure for Cooling the Internal Chamber of a High-speed Electric Spindle |
| JP2020051472A (en) * | 2018-09-25 | 2020-04-02 | 日本精工株式会社 | Ball screw |
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