JPH0118933Y2 - - Google Patents
Info
- Publication number
- JPH0118933Y2 JPH0118933Y2 JP1983163938U JP16393883U JPH0118933Y2 JP H0118933 Y2 JPH0118933 Y2 JP H0118933Y2 JP 1983163938 U JP1983163938 U JP 1983163938U JP 16393883 U JP16393883 U JP 16393883U JP H0118933 Y2 JPH0118933 Y2 JP H0118933Y2
- Authority
- JP
- Japan
- Prior art keywords
- feed screw
- nut
- bellows
- pair
- airtight
- 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
Links
- 238000006243 chemical reaction Methods 0.000 claims description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 239000003595 mist Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Description
【考案の詳細な説明】
〈考案の適用分野〉
本考案は、粉塵や塗料霧等微細な粒子の塵が存
在する場所に設けられる、回転−直線変換装置の
送りネジ面及びナツトの保護のためのものであ
る。[Detailed description of the invention] <Field of application of the invention> This invention is used to protect the feed screw surface and nut of a rotary-linear conversion device installed in a place where fine particles such as dust and paint mist are present. belongs to.
〈従来技術〉
従来、送りネジ面とナツトの防塵のためジヤバ
ラををナツトの両側に送りネジを覆つて設けもの
があり、送りネジが正逆回転し、ナツトと左右に
運動したときのジヤバラ内の圧力変化を、ジヤバ
ラに設けた通気孔によつて大気と呼吸させる様に
したものがある。<Prior art> Conventionally, in order to prevent dust between the feed screw surface and the nut, a bellows was installed on both sides of the nut to cover the feed screw. There is a device in which the pressure changes are made to breathe with the atmosphere through ventilation holes provided in the bellows.
しかし、微粒子の粉塵や塗料霧等が存在する雰
囲気中では、通気孔を通つて微粒子が侵入するた
め防塵の効果はなかつた。 However, in an atmosphere where particulate dust, paint mist, etc. are present, the particulates enter through the ventilation holes, so there is no dust-proofing effect.
〈考案の目的〉
本考案の目的は、前記欠点を解消し、ナツトの
左右移動により生じる、ジヤバラ内の圧力変化に
抗してナツトを送るための駆動力の増加なしに微
粒子に対して有効な防塵構造を提案するものであ
る。<Purpose of the invention> The purpose of the invention is to eliminate the above-mentioned drawbacks and to provide a method that is effective against fine particles without increasing the driving force to feed the nut against the pressure change in the bellows caused by the left-right movement of the nut. It proposes a dust-proof structure.
〈考案の構成〉 第１図ないし第２図により説明を行う。<Structure of the idea> The explanation will be given with reference to FIGS. 1 and 2.
送りネジ４は、一端に駆動モータ１とカツプリ
ング等で連結し、軸受３，３で支持されている。 The feed screw 4 is connected to the drive motor 1 at one end by a coupling or the like, and is supported by bearings 3, 3.
ペデスタル２，２は内径に軸受３，３を嵌合し
てあり、ベース１０にネジ等で係止してある。 The pedestals 2, 2 have bearings 3, 3 fitted on their inner diameters, and are secured to the base 10 with screws or the like.
ナツト５は、送りネジ４に螺合されており、外
径側はテーブル６に設けた孔に嵌合され軸方向は
ボルトで係止してある。 The nut 5 is screwed onto the feed screw 4, its outer diameter side is fitted into a hole provided in the table 6, and its axial direction is locked with a bolt.
ジヤバラ７は、ペデスタル２，２とテーブル６
の間に送りネジ４を覆つて設けられ、ナツト５の
左右に気密室８，８を構成する。 Jiyabara 7 is pedestal 2, 2 and table 6
The feed screw 4 is provided between the nut 5 and the feed screw 4 to be covered therewith, and airtight chambers 8, 8 are formed on the left and right sides of the nut 5.
連通孔９は、テーブル６のナツト５の外径の外
側でジヤバラ７の内径より内側になる位置に、気
密室８，８を連通する様に軸方向に設けてある。 The communication hole 9 is provided in the axial direction at a position outside the outer diameter of the nut 5 of the table 6 and inside the inner diameter of the bellows 7 so as to communicate the airtight chambers 8, 8.
以下動作の説明を行う。 The operation will be explained below.
駆動モータ１を回転すると、送りネジ４が回転
し、ナツト５とテーブル６は軸方向に移動する、
その際、気密室８，８の容積は一方は膨張他方は
圧縮されその圧力によつてナツト５に抗力が生じ
るが、気密室８，８の内気は連通孔９を通つて移
動し左右の気密室８，８の圧力を釣合せる。の
で、圧力差によるナツト５の運動に抵抗する力は
生じない。 When the drive motor 1 is rotated, the feed screw 4 is rotated, and the nut 5 and table 6 are moved in the axial direction.
At this time, the volumes of the airtight chambers 8, 8 are expanded on one side and compressed on the other side, and this pressure causes a drag force on the nut 5, but the air inside the airtight chambers 8, 8 moves through the communication hole 9, and the air on the left and right sides is compressed. Balance the pressure in closed rooms 8 and 8. Therefore, no force is generated to resist the movement of the nut 5 due to the pressure difference.
又、内気と外気は気密ジヤバラで遮閉されてい
るので、外部から、送りネジ部へ微粒子が侵入す
ることはない。 Furthermore, since the inside air and the outside air are sealed off by the airtight bellows, no particulates can enter the feed screw portion from the outside.
〈考案の効果〉
上記の如く、本考案は気密ジヤバラを送りネジ
部を覆つて設けることが出来、ナツトの運動を阻
げる力が発生することがないので、動力損失なし
に送りネジの微粒子に対する防塵が行える。<Effects of the invention> As described above, in the present invention, an airtight bellows can be provided to cover the feed screw portion, and no force is generated that would hinder the movement of the nut, so there is no loss of power and the fine particles of the feed screw are removed. Can be dust-proofed against.
第１図は本考案の実施例の側断面図をなし、第
２図はナツト部の部分詳細断面図を示す。なお、
同じ構成要素には同一符号が付してある。
１は駆動モータ、４は送りネジ、５はナツト、
６はテーブル、７はジヤバラ、８，８は気密室、
９は連通孔である。
FIG. 1 is a side sectional view of an embodiment of the present invention, and FIG. 2 is a partially detailed sectional view of the nut portion. In addition,
The same components are given the same reference numerals. 1 is a drive motor, 4 is a feed screw, 5 is a nut,
6 is the table, 7 is the bell, 8, 8 is the airtight room,
9 is a communicating hole.
Claims (1)
の回転を、送りネジに螺合したナツトにより直線
運動に変換し、テーブルに固着したナツトを介し
テーブルを直線移動させる回転−直線運動変換装
置の送りネジ部をジヤバラで覆うようにした送り
ネジの防塵装置において、 前記ペデスタルとテーブル間に設けた一対の気
密なジヤバラと、テーブルのナツト固着部にナツ
ト外径より大きくかつジヤバラ内径より小さい径
方向位置に設けた軸方向連通孔とよりなることを
特徴とする送りネジの防塵装置。[Claim for Utility Model Registration] Rotation of a feed screw supported between a pair of bearing pedestals is converted into linear motion by a nut screwed onto the feed screw, and rotation that moves the table linearly via a nut fixed to the table. - In a dust-proof device for a feed screw in which the feed screw portion of a linear motion conversion device is covered with a bellows, a pair of airtight bellows provided between the pedestal and the table, and a nut fixing portion of the table are provided with a pair of airtight bellows larger than the outer diameter of the nut and A dustproof device for a feed screw, comprising an axial communication hole provided at a radial position smaller than the inner diameter of the bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16393883U JPS6071542U (en) | 1983-10-21 | 1983-10-21 | Dustproof device for lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16393883U JPS6071542U (en) | 1983-10-21 | 1983-10-21 | Dustproof device for lead screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6071542U JPS6071542U (en) | 1985-05-20 |
| JPH0118933Y2 true JPH0118933Y2 (en) | 1989-06-01 |
Family
ID=30359553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16393883U Granted JPS6071542U (en) | 1983-10-21 | 1983-10-21 | Dustproof device for lead screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6071542U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4749535B2 (en) * | 2000-10-26 | 2011-08-17 | 株式会社ナガセインテグレックス | Machine Tools |
| JP2011224729A (en) * | 2010-04-20 | 2011-11-10 | Disco Corp | Ball screw protecting bellows mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55125407U (en) * | 1979-02-28 | 1980-09-05 |
-
1983
- 1983-10-21 JP JP16393883U patent/JPS6071542U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6071542U (en) | 1985-05-20 |
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