JPH0432354U

JPH0432354U -

Info

Publication number: JPH0432354U
Application number: JP7540490U
Authority: JP
Priority date: 1990-07-16
Filing date: 1990-07-16
Publication date: 1992-03-16
Anticipated expiration: 2005-07-16
Also published as: JP2572926Y2

Description

[Brief explanation of the drawing]

第１図〜第４図は本考案の第一実施例を示し、
第１図は差動装置に適用した例を示す部分平面断
面図、第２図はねじ切り板の固定機構を示す側面
図、第３図、第４図はねじ切り板の固定機構を示
す要部拡大平面断面図、第５図は本考案の作用効
果を確認するために用いた実験装置の略示的判断
面図、第６図、第９図、第１２図は同実験装置に
用いたねじ切り板の側面図、第７図、第１０図、
第１３図は同ねじ切り板の断面図、第８図は同ね
じ切り板のらせん状溝の拡大断面図、第１１図は
同実験装置によるデフケースの回転数と油の供給
量との関係を示すグラフ、第１４図は同実験装置
における摺動面の隙間及びデフケースの回転数、
吐出量の関係を示すグラフ、第１５図〜第１７図
は摺動面の隙間を形成するための構成例を示す説
明図、第１８図は第二実施例にかかる差動装置の
部分平面断面図、第１９図は同実施例の油供給穴
の開閉機構を示す拡大断面図、第２０図は従来の
差動装置を示す部分平面断面図である。符号の説明、１……差動装置（油供給装置）、
２……デフアレンシヤルキヤリア（ハウジング）
、３……デフケース（回転体）、４……軸受、５
……差動小歯車、６……差動大歯車、７……デフ
ケースの端面、８……ねじ切り板、９……ねじ切
り板の端面、１０……摺動面、１１……らせん状
溝、１２……油導入路、１３……スラストワツシ
ヤ、１４，１５……挿入穴、１６……ピン、１７
……Ｏリング、１８……回り止め板、１９……ボ
ルト、２０……係止爪、２１……係止溝、５０…
…ゴム状弾性体、５１……バネ部、６１，６２…
…油供給穴、６３……ポート、６４……弁、６５
……ボール、６６，６７……スプリング、６８…
…蓋、６８ａ……孔、６９……弁室、Ａ……軸心
、Ｂ……空間、Ｄ……噛合い部（摺動面）、Ｅ…
…デフケースの回転方向。 1 to 4 show a first embodiment of the present invention,
Fig. 1 is a partial plan cross-sectional view showing an example applied to a differential gear, Fig. 2 is a side view showing the fixing mechanism of the threaded plate, and Figs. 3 and 4 are enlarged views of main parts showing the fixing mechanism of the threaded plate. 5 is a schematic cross-sectional view of the experimental device used to confirm the effects of the present invention; FIGS. 6, 9, and 12 are threaded plates used in the experimental device. side view, Fig. 7, Fig. 10,
Figure 13 is a cross-sectional view of the same threaded plate, Figure 8 is an enlarged cross-sectional view of the spiral groove of the same threaded plate, and Figure 11 is a graph showing the relationship between the rotation speed of the differential case and the amount of oil supplied using the same experimental device. , Figure 14 shows the gap between the sliding surfaces and the rotation speed of the differential case in the same experimental equipment.
A graph showing the relationship between the discharge amounts, FIGS. 15 to 17 are explanatory diagrams showing configuration examples for forming gaps between sliding surfaces, and FIG. 18 is a partial plane cross section of the differential device according to the second embodiment. 19 is an enlarged sectional view showing the oil supply hole opening/closing mechanism of the same embodiment, and FIG. 20 is a partial plan sectional view showing a conventional differential gear. Explanation of symbols, 1...Differential device (oil supply device),
2...Differential carrier (housing)
, 3... Differential case (rotating body), 4... Bearing, 5
...Differential pinion gear, 6...Differential large gear, 7...End face of differential case, 8...Threaded plate, 9...End face of threaded plate, 10...Sliding surface, 11...Spiral groove, 12... Oil introduction path, 13... Thrust washer, 14, 15... Insertion hole, 16... Pin, 17
... O-ring, 18 ... Stopping plate, 19 ... Bolt, 20 ... Locking pawl, 21 ... Locking groove, 50 ...
...Rubber-like elastic body, 51...Spring part, 61, 62...
...Oil supply hole, 63...Port, 64...Valve, 65
...Ball, 66, 67...Spring, 68...
...Lid, 68a...hole, 69...valve chamber, A...axis, B...space, D...meshing part (sliding surface), E...
...The rotation direction of the differential case.

Claims

[Claims for Utility Model Registration] (1) A hollow rotating body that rotates around its axis is arranged inside a hollow housing, a sliding part is housed inside this rotating body, and the housing and the rotating body are connected together. In the oil supply device, oil is sealed in a space formed substantially parallel to the axis between the rotary body and the annular end face perpendicular to the axis and the housing side. An annular end surface provided orthogonally to the axis is brought into contact with the annular end surface to form an annular sliding surface, and a spiral groove is provided on this sliding surface from the outer circumferential side toward the inner circumferential side. An oil supply device characterized in that an oil introduction path is provided in the body to communicate the spiral groove and the inside of the rotating body. (2) An oil supply hole is provided in the rotating body along the line of action of centrifugal force generated during rotation to communicate the space with the inside of the rotating body, and when a predetermined centrifugal force is applied to the rotating body, The oil supply device according to claim 1, further comprising a valve that closes the oil supply hole.