JPS6048897A

JPS6048897A - Non-lubricated screw jack

Info

Publication number: JPS6048897A
Application number: JP15379483A
Authority: JP
Inventors: 相原　勇
Original assignee: OOSAKA JIYATSUKI SEISAKUSHO KK; OSAKA JIYATSUKI SEISAKUSHO KK
Current assignee: OOSAKA JIYATSUKI SEISAKUSHO KK; OSAKA JIYATSUKI SEISAKUSHO KK
Priority date: 1983-08-23
Filing date: 1983-08-23
Publication date: 1985-03-16

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】本発明は潤滑手段として特別なものを使用し、永久的に
潤滑のための給油を要しないこととした特殊なスクリュ
ージヤツキに係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a special screw jack that uses a special lubricating means and does not require permanent oil supply for lubrication.

従来、スクリュ−ジヤツキの潤滑は、その回動部分の軸
受にローラベアリング、スラストベアりング等が潤滑油
脂を塗布して使用されており、この潤滑油脂をある期間
経過後、前玉充填塗布するか、取替えをするか等の手段
が採゛られた。Conventionally, screw jacks have been lubricated by applying lubricating oil to the rotating parts of their bearings, such as roller bearings and thrust bearings. After a certain period of time, this lubricating oil is applied to the front ball. Measures were taken, such as replacement or replacement.

しかして、スクリュージヤツキ自体が一旦装着されたの
ちは、その装着位置から取り出せない場合、その場所に
近寄れない場合等があり、このような場合の該スクリュ
ージヤツキの潤滑には全く手段がなかった。However, once the screw jack itself is installed, there are cases where it cannot be removed from the installed position, or where it cannot be approached, and there is no way to lubricate the screw jack in such cases. Ta.

本発明は特殊々軸受材を使用することによって、格別の
操作を要せず特別な条件下での潤滑を果すことを目的と
する。The object of the present invention is to achieve lubrication under special conditions without requiring special operations by using a special bearing material.

図について詳細に説明すると、本体■内壁においてドラ
イベアリング■を介して支承される傘歯車■は、その軸
芯にスクＩＪ、−杆■を貫通し、該スクＩＪ、−杆■の
一端は、傘歯車■より突出して本体■の蓋■によりドラ
イベアリング■を介して支承される。傘歯車■に噛合す
る傘歯車■は、本体■の側方からドライベアリング■を
介して本体■に数個のボルトにより装置された軸承■に
より支承され、ダブルナツト［相］によりその軸方向の
進退を規制される。■はダプルナソｌ−［相］の蓋であ
る。To explain the figure in detail, the bevel gear (■) supported on the inner wall of the main body (■) via a dry bearing (■) passes through a square IJ and a rod (■) at its axis, and one end of the square IJ and a rod (■) is It protrudes from the bevel gear ■ and is supported by the lid ■ of the main body ■ via a dry bearing ■. The bevel gear ■ that meshes with the bevel gear ■ is supported by a bearing ■ attached to the main body ■ by several bolts from the side of the main body ■ via a dry bearing ■, and is moved forward and backward in the axial direction by a double nut [phase]. are regulated. ■ is the lid of Dapurnaso l-[phase].

スクリーー杆■の傘歯車■よりの突出部にはナツト＠が
螺合され、これが傘歯車■の軸方向の移動を規制する。A nut @ is screwed into the protrusion of the screen rod (■) from the bevel gear (2), and this restricts the movement of the bevel gear (2) in the axial direction.

本体■の底面には、保護筒［相］が数個のボルトをφ 介ｊ〜て固着一体とされ、その端部において筒状０をド
ライベアリング［相］を介して支承し、キー［相］をに
螺合するドライベアリングからなるナツト［相］を数個
のボルトを介して押え［相］で固定しており、他端にお
いて吊り金具［相］を螺合する。なお、外周には軸線に
平行にキー溝を刻し、前記キー［相］に係合するものと
する。On the bottom of the main body ■, a protective cylinder [phase] is fixed and integrated with several bolts φ, and at its end a cylindrical shape 0 is supported via a dry bearing [phase], and a key [phase] is attached to the bottom of the main body ■. A nut [phase] consisting of a dry bearing is screwed into the nut [phase], which is fixed with a presser [phase] via several bolts, and a hanging metal fitting [phase] is screwed onto the other end. Note that a key groove is cut in parallel to the axis on the outer periphery, and is engaged with the key [phase].

使用に際しては、傘歯車■の軸に原動機（図示に接続さ
れた重量物が昇降されることになる。When in use, a heavy object connected to the prime mover (as shown in the figure) is moved up and down on the shaft of the bevel gear (2).

本発明は、前述の構成作用にょシ ■、ドライベアリングにより無給油とされるので、例え
ば、放射能を浴びる場所、一旦据付後は近寄れない場所
等での永久的使用に効果がある。The present invention has the above-mentioned structural functions (1) and does not require lubrication due to the dry bearing, so it is effective for permanent use, for example, in places exposed to radiation or inaccessible places once installed.

すなわち、ドライベアリングは、黒鉛を焼結させた乾式
の合金であり、従来の含油合金ど異りり上述の永久的使
用に効果を有する。That is, the dry bearing is a dry alloy made by sintering graphite, and unlike conventional oil-impregnated alloys, it is effective for permanent use.

■、ドライベアリングがスクリュー杆■に螺合するナン
ド［相］としての機能と潤滑手段を有する軸受の機能を
兼ねるので、従来のようにナツトの機能のみする合金に
潤滑油脂が塗布される構成を必要としない。■The dry bearing has the function of a NAND [phase] that is screwed into the screw rod ■and the function of a bearing that has a lubricating means, so unlike the conventional structure where lubricating oil is applied to the alloy that only functions as a nut. do not need.

（２）、ドライベアリング■および■自体がスラスト軸
受の役目をするので、スラストベアリングに潤滑油脂を
塗布する構成を必要とし々い。(2) Since the dry bearings ■ and ■ themselves serve as thrust bearings, it is often necessary to apply lubricating oil or fat to the thrust bearings.

等々の諸点に特徴を有する無給油スクリュージヤツキで
ある。This is an oil-free screw jack that has the following characteristics.

[Brief explanation of the drawing]

図は、本発明に係る実施例を切断してその内部を示す。特許出願人株式会社　大阪ジヤツキ製作所 The figure shows the interior of an embodiment according to the invention cut away. patent applicant Osaka Jatsuki Manufacturing Co., Ltd.

Claims

[Claims]

Among a set of gears built into the main body, the driving side gear is supported from the side of the main body via a special bearing, and the driven side gear is supported at the bottom of the main body via a special bearing of the same type as mentioned above. The screw rod that passes through the shaft core of the gear has its upper end received by the upper lid of the main body, and a part of the screw has a nut fixedly fixed to the cylindrical body and made of a special bearing of the same type as mentioned above. An oil-free screw jack characterized in that the cylindrical body is supported via a special bearing of the same type as described above at the lower part of a protective cylinder suspended from the bottom of the main body.