JPH02140058U

JPH02140058U -

Info

Publication number: JPH02140058U
Application number: JP4907289U
Authority: JP
Priority date: 1989-04-26
Filing date: 1989-04-26
Publication date: 1990-11-22

Description

[Brief explanation of drawings]

第１図乃至第４図は本考案の第１実施例に係る
磁性流体を潤滑剤として用いた歯車装置を示して
おり、第１図は平歯車の噛み合い状態の正面図、
第２図は第１図の歯車の歯の拡大図、第３図はラ
ツクの歯面に磁性流体を磁気吸着した状態の側面
図、第４図ａ，ｂは本考案をはすば歯車に適用し
た半縦断面図および半側面図、第５図乃至第９図
は本考案の第２実施例に係る磁性流体を潤滑剤と
して用いた歯車装置を示しており、第５図および
第６図は平歯車の側面に環状磁力源を設けた半縦
断面図、第７図および第８図はホイール歯車の内
周に軟質磁力源を設けた半縦断面図、第９図ａお
よびｂは軟質磁力源の伸ばした状態および丸めた
状態の斜視図である。符号の説明、１，２……大、小歯車、３……歯
、３１……歯面、４……磁性流体、５……ラツク
、６……はすば歯車、７……磁力源、８……歯車
、９……ホイール歯車、９１……リム、１０……
軟質磁力源、Ｈ……磁力線。 1 to 4 show a gear device using magnetic fluid as a lubricant according to a first embodiment of the present invention, and FIG. 1 is a front view of spur gears in a meshed state;
Figure 2 is an enlarged view of the teeth of the gear shown in Figure 1, Figure 3 is a side view of a state in which magnetic fluid is magnetically attracted to the tooth surface of the rack, and Figures 4a and b show the present invention in a helical gear. The applied half-longitudinal sectional view and half-side view, FIGS. 5 to 9, show a gear device using magnetic fluid as a lubricant according to a second embodiment of the present invention, and FIGS. is a half-longitudinal cross-sectional view showing an annular magnetic force source provided on the side surface of a spur gear, FIGS. 7 and 8 are semi-longitudinal cross-sectional views showing a soft magnetic source provided on the inner periphery of a wheel gear, and FIGS. 9 a and b are soft magnetic sources. FIG. 3 is a perspective view of the magnetic source in an extended and rolled up state. Explanation of symbols, 1, 2...Large, pinion gear, 3...Teeth, 31...Tooth surface, 4...Magnetic fluid, 5...Rack, 6...Helical gear, 7...Magnetic force source, 8... Gear, 9... Wheel gear, 91... Rim, 10...
Soft magnetic force source, H... lines of magnetic force.

Claims

[Claims for Utility Model Registration] (1) Magnetizing the tooth surface of a gear, causing a magnetic fluid to be magnetically attracted to the magnetized tooth surface, and forming a fluid lubricant film on the meshing part of the gear with the magnetic fluid. A gear device using magnetic fluid as a lubricant, characterized by: (2) A magnetic force source is provided in a part other than the gear of a gear made of a magnetic material, and the tooth surface is magnetized by the magnetic force source to cause magnetic fluid to be magnetically attracted to the tooth surface, and the meshing of the gears is caused by the magnetic fluid. A gear device using a magnetic fluid as a lubricant, which is characterized by forming a fluid lubrication film on the surface of the gear.