JPH045525U

JPH045525U -

Info

Publication number: JPH045525U
Application number: JP4708890U
Authority: JP
Priority date: 1990-05-02
Filing date: 1990-05-02
Publication date: 1992-01-20
Anticipated expiration: 2005-05-02
Also published as: JPH0721933Y2

Description

[Brief explanation of the drawing]

第１図は本案一実施例の要部及び附設の油圧回
路を示す縦断側面図及び回路図、第２図は同実施
例を装備する油圧式舶用逆転機の一部展開縦断側
面図、第３図は実施例の一部材の拡大斜視図、第
４図及び第５図はそれぞれ、第１図とは異なつた
状態における実施例要部の縦断側面図及び油圧回
路図、第６図は油圧回路についての変形例を示す
装置要部の縦断側面図及び油圧回路図である。１……伝動軸、２Ｆ，２Ｒ……歯車、３Ｆ，３
Ｒ……油圧クラツチ、４……作動ピストン、４ａ
……シリンダ部、４ｂ……環状段部、５……作動
ピストン、６……隔離板、７Ｆ，７Ｒ……作動油
室、８……方向切換弁、９……弁体、９ａ……ラ
ンド部、９ｂ，９ｃ……油路部、１０……油圧作
用ポート、１３……貫通穴、１９Ｆ，１９Ｒ……
絞り、３２，３３……摩擦エレメント、３６……
止輪、４０Ｆ，４０Ｒ，４０Ｖ……油路、４６Ｆ
，４６Ｒ……油給排回路、４６Ｖ……油圧作用回
路。 Fig. 1 is a longitudinal side view and circuit diagram showing the main parts and attached hydraulic circuit of the present embodiment, Fig. 2 is a partially expanded longitudinal side view of a hydraulic marine reversing machine equipped with the same embodiment, and Fig. 3 The figure is an enlarged perspective view of one member of the embodiment, FIGS. 4 and 5 are a vertical side view and a hydraulic circuit diagram of the main parts of the embodiment in a state different from that in FIG. 1, and FIG. 6 is a hydraulic circuit. FIG. 6 is a longitudinal sectional side view of a main part of the device and a hydraulic circuit diagram showing a modification of the device. 1...Transmission shaft, 2F, 2R...Gear, 3F, 3
R...Hydraulic clutch, 4...Operating piston, 4a
... Cylinder part, 4b ... Annular step part, 5 ... Working piston, 6 ... Separation plate, 7F, 7R ... Hydraulic oil chamber, 8 ... Directional switching valve, 9 ... Valve body, 9a ... Land Part, 9b, 9c...Oil passage part, 10...Hydraulic action port, 13...Through hole, 19F, 19R...
Aperture, 32, 33...Friction element, 36...
Retaining ring, 40F, 40R, 40V...Oil passage, 46F
, 46R...Oil supply/drain circuit, 46V...Hydraulic action circuit.

Claims

[Claims for Utility Model Registration] Two multi-plate hydraulic clutches 3F for selectively coupling two gears 2F and 2R loosely fitted on the transmission shaft 1 with an interval between them. ,3R
A cylinder portion 4a is formed in the actuating piston 4 of one hydraulic clutch 3F to extend in the direction of the other hydraulic clutch 3R, and the actuating piston 5 of the other hydraulic clutch 3R is fitted into the cylinder portion 4a. Both the working pistons 4 and 5 are held in the cylinder part 4a so as to be able to slide and displace integrally, while the cylinder part 4a is held by a separating plate 6 fixedly installed on the transmission shaft 1 between the working pistons 4 and 5. Two hydraulic oil chambers 7F and 7R are defined within the interior, and hydraulic pressure is selectively supplied to each hydraulic oil chamber 7F and 7R under the control of a directional control valve 8 to selectively operate each hydraulic clutch 3F and 3R. In a hydraulic clutch device configured to obtain actuation, a valve body 9 is provided which is slidably supported on the separator plate 6 and passes through the separator plate 6 and abuts the two actuating pistons 4, 5; A hydraulic port 10 that opens toward the outer peripheral surface of the valve body 9 is formed in the separator plate 6, and the valve body 9 is connected to both hydraulic clutches 3F and 3R.
A land portion 9a blocks the hydraulic port 10 in the non-operating state, and oil passage portions 9b and 9c are arranged at one end and the other end of the land portion 9a and communicate with the hydraulic oil chambers 7F and 7R, respectively. A hydraulic clutch device characterized in that the directional switching valve 8 is provided so that hydraulic pressure is applied to the hydraulic application port 10 only when the directional switching valve 8 is in a neutral position.