JPH02134347U

JPH02134347U -

Info

Publication number: JPH02134347U
Application number: JP4338489U
Authority: JP
Priority date: 1989-04-13
Filing date: 1989-04-13
Publication date: 1990-11-07
Also published as: JPH0453475Y2

Description

[Brief explanation of drawings]

図は本考案の実施例を示し、第１図は正回転時
の全体を示す一部横断平面図、第２図は逆回転時
の一部分を示す一部横断平面図、第３図は他の実
施例の一部分を示す一部横断平面図、第４図は第
３図で示す実施例の油圧回路図である。図面符号、Ａ……第１系統の遊星歯車機構、Ｂ
……第２系統の遊星歯車機構、Ｃ……多板クラツ
チ操作手段、Ｄ……作動緩衝手段、１……入力軸
、２……出力軸、３……サンギヤ、４……サンギ
ヤ、５……プラネタリギヤ、６……プラネタリギ
ヤ、７……キヤリヤ、８……キヤリヤ、９……リ
ングギヤ、１０……リングギヤ、１１……本体ケ
ース、１２……多板クラツチ、１３……多板クラ
ツチ、１４……ピストン、１５……シリンダ室、
１６……シリンダ室、１７……切り換え弁、１８
……操作レバー、１９……油路、２０……油路、
２１……圧力制御弁、２２……圧力制御弁。 The figures show an embodiment of the present invention, in which Fig. 1 is a partial cross-sectional plan view showing the whole in normal rotation, Fig. 2 is a partial cross-sectional plan view showing a part in reverse rotation, and Fig. 3 is a partial cross-sectional plan view showing a part in reverse rotation. FIG. 4 is a partial cross-sectional plan view showing a part of the embodiment, and FIG. 4 is a hydraulic circuit diagram of the embodiment shown in FIG. 3. Drawing code, A...first system planetary gear mechanism, B
... Planetary gear mechanism of second system, C ... Multi-plate clutch operation means, D ... Operation buffer means, 1 ... Input shaft, 2 ... Output shaft, 3 ... Sun gear, 4 ... Sun gear, 5 ... ...Planetary gear, 6...Planetary gear, 7...Carrier, 8...Carrier, 9...Ring gear, 10...Ring gear, 11...Main body case, 12...Multi-disc clutch, 13...Multi-disc clutch, 14... ...Piston, 15...Cylinder chamber,
16...Cylinder chamber, 17...Switching valve, 18
...Operation lever, 19...Oil passage, 20...Oil passage,
21...Pressure control valve, 22...Pressure control valve.

Claims

[Claims for Utility Model Registration] The output shaft 2 is provided on the same axis as the input shaft 1, and the first and second two-system planetary gear mechanisms A and B are provided,
In a planetary gear mechanism type forward/reverse rotation device in which each sun gear 3, 4 is provided in parallel with the input shaft 1, and a ring gear 9 of the first system is meshed with a carrier 8 of the second system, the planetary gear of the first system is In the gear mechanism A, a multi-plate clutch 1 for the first system is provided between the carrier 7 and the main body case 11 so as to be able to rotate and stop the carrier 7 for the first system.
In the planetary gear mechanism B of the second system, a multi-plate clutch 13 for the second system is provided between the ring gear 10 and the main body case 11 so as to be able to rotate and stop the ring gear 10 of the second system, The carrier 8 of the second system is configured integrally with the output shaft 2, and the multi-disc clutch 12 for the first system and the multi-disc clutch 1 for the second system are used as the multi-disc clutch operating means C.
one piston 14 that can selectively press 3;
A cylinder chamber 15 for the first system is provided on both sides of the piston 14.
and a cylinder chamber 16 for the second system,
A planetary gear mechanism type forward/reverse rotation device characterized by being provided with a switching valve 17 capable of switching the supply of pressure oil to each cylinder chamber 15, 16, and a switching valve operation lever 18. On the way from each cylinder chamber 15, 16 for the first and second systems to each drain oil passage 25, 26, each cylinder chamber 15 is provided as a movement relaxation means D for the piston 14.
, 16. The planetary gear mechanism type forward/reverse rotation device according to claim 1, further comprising pressure control valves (21, 22) capable of externally adjusting the hydraulic pressure applied to the planetary gear mechanism.