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公开(公告)号：US4613024A
公开(公告)日：1986-09-23
申请号：US698140
申请日：1985-02-04
IPC分类号： B60K17/06 , B60K17/10 , B60K17/28 , B60K17/344 , F16D25/0638 , F16D67/04 , F16H3/08 , F16H3/083 , F16H63/02 , F16H63/06 , F16H63/12 , F16H63/30 , F16D25/063 , F16D55/40
CPC分类号： B60K17/344 , B60K17/105 , B60K17/28 , F16D25/0638 , F16D67/04
摘要： A transmission shaft (62) mounting thereon fluid-operated clutch means (68) which discontinues selectively the input of power to such shaft is enclosed at one end portion thereof by a hollow cylinder (86) projected inwardly from an inner wall surface of transmission case (28) for power transmission. An annular groove (89) formed to said one end portion of shaft (62) at the outer peripheral surface thereof and communicated to the clutch means (68) via fluid path (85) in the shaft (62) is sealed by the hollow cylinder (86) so as to form an annular fluid chamber (90) which constitutes a rotary joint portion of fluid conduit line for the clutch means (68). Braking mechanism of a brake (69) associated with the clutch means (69) for braking the shaft (62) in the non-operated state of clutch is arranged within the hollow cylinder (86) by employing such cylinder as brake case. The rotary joint portion and brake (69) are thus arranged within transmission case (28) without a need of structure arranged outside the case (28).
摘要翻译： 安装在其上的流体操作的离合器装置（68）上的传动轴（62）通过从变速器壳体的内壁表面向内突出的中空圆筒（86）封闭在其一端部上 （28）用于动力传递。 通过轴（62）中的流体路径（85）在其外周面上形成于轴（62）的一端部并与离合器装置（68）连通的环形槽（89）被中空筒 （86），以形成构成用于离合器装置（68）的流体导管线的旋转接头部分的环形流体室（90）。 在离合器的非操作状态下用于制动轴（62）的离合器装置（69）的制动器（69）的制动机构通过采用这种气缸作为制动器壳体布置在中空圆筒（86）内。 因此，旋转接头部分和制动器（69）被布置在变速箱（28）内，而不需要布置在壳体（28）外部的结构。
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公开(公告)号：US5570605A
公开(公告)日：1996-11-05
申请号：US509155
申请日：1995-07-31
CPC分类号： F16H57/023 , F16H37/043 , F16H2037/044 , F16H2037/049 , F16H2057/02013 , F16H2057/02056 , F16H2057/02086 , F16H2057/02095 , F16H2057/0235 , F16H2063/005 , F16H61/70 , F16H63/32 , Y10T74/2186
摘要： A bearing support frame (4) is disposed within a rear end portion of a tractor front housing (1) and is fixedly supported by this housing which has an internal partition wall (1a) and an open rear end. A transmission casing (2) having an open front end is fastened to the rear of the front housing and includes a primary speed change mechanism (14) which is disposed between a drive shaft (12) and change shaft (13). These shafts are supported at their front end portions by the support frame and extend forwardly of this frame. An additional speed change mechanism (9) is disposed within a rear half of the front housing and comprises a primary shaft (7), rotatable output member (10) and countershaft (11). The output member is fixedly mounted on a front end portion of the drive shaft, and a rear end portion of the countershaft is journaled by a front end portion of the change shaft. Preferably, the support frame includes therein an annular bore portion (4c) for temporarily holding the output member in position at a preassembled condition of the additional change mechanism in the front housing.
摘要翻译： 轴承支撑框架（4）设置在拖拉机前壳体（1）的后端部分中，并且由该壳体固定地支撑，该壳体具有内部分隔壁（1a）和敞开的后端。 具有开口前端的变速器壳体（2）固定在前壳体的后部，并且包括设置在驱动轴（12）和变速轴（13）之间的主变速机构（14）。 这些轴在其前端部处由支撑框架支撑并且在该框架的前方延伸。 附加的变速机构（9）设置在前壳体的后半部分中，并包括主轴（7），可旋转输出构件（10）和中间轴（11）。 输出构件固定地安装在驱动轴的前端部，中间轴的后端部由变轴的前端部支承。 优选地，支撑框架在其中包括环形孔部分（4c），用于在前壳体中的附加变化机构的预组装状态下暂时将输出构件保持在适当位置。
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公开(公告)号：US5058459A
公开(公告)日：1991-10-22
申请号：US690812
申请日：1991-04-23
IPC分类号： B60K17/04 , B60K17/06 , F16H3/02 , F16H37/04 , F16H57/021 , F16H57/029
CPC分类号： F16H37/043 , Y10T74/19167 , Y10T74/2186
摘要： An auxiliary speed change mechanism (10) disposed within a rear portion of a tractor clutch housing (1) is supported by a support frame (11) comprising axially spaced front and rear bearing support plate members (11a, 11b) which are integrally connected by upper and lower connecting plate members (11c, 11d). The change mechanism includes two sets of constant-mesh gears (8, 9, 12, 13) and is operated by a shifter fork (17) which is supported by the support frame through a guide shaft (16). This structure facilitates an easy pre-assembling procedure of the change mechanism which is then installed into the tractor by securing the support frame to a front of a transmission casing (3) to be secured to the rear of the clutch housing. An integral, internal partition wall (1a) is provided in the clutch housing for interrupting lubricant oil for the change mechanism from a main clutch (2) which is disposed within a front end portion of the housing.
摘要翻译： 设置在拖拉机离合器壳体（1）的后部内的辅助变速机构（10）由支撑框架（11）支撑，所述支撑框架（11）包括轴向间隔开的前后轴承支撑板构件（11a，11b），所述前后轴承支撑板构件 上连接板构件（11c，11d）。 换档机构包括两套恒啮齿轮（8,9,12,13），并由一个通过导向轴（16）由支撑架支撑的换挡叉（17）操作。 这种结构有助于改变机构的容易的预组装过程，然后通过将支撑框架固定到变速器壳体（3）的前部以将其固定到离合器壳体的后部而被安装到拖拉机中。 在离合器壳体中设有一体的内部分隔壁（1a），用于从设置在壳体的前端部内的主离合器（2）中断用于换向机构的润滑油。
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公开(公告)号：US5058455A
公开(公告)日：1991-10-22
申请号：US569563
申请日：1990-08-20
CPC分类号： F16H37/043 , F16H57/02 , B60Y2200/221 , F16H2057/005 , F16H2057/02013 , F16H2057/02043 , F16H2057/02056 , F16H2057/02086 , F16H2057/0213 , F16H61/0003 , Y10T74/19167 , Y10T74/2186
摘要： A bearing support frame (10) is disposed within a rear end portion of a tractor front housing (1) having an open rear end. The frame is secured to internal boss (2c) on a transmission casing (1), which is fastened to the rear of the front housing and has an open front end, and is used for supporting respective one ends of transmission shafts (4, 5, 7, 8) for both of an additional speed change mechanism (6), which is disposed within a rear half of the front housing, and a main speed change mechanism (9) which is disposed within a front half of the transmission casing. An intermediate shaft (17) interposed between the additional and main change mechanisms is also supported by the support frame.The support frame which is preferably composed of front and rear bearing support plates (10A, 10B) facilitates an easy assembly of the change mechanisms.
摘要翻译： 轴承支撑框架（10）设置在具有敞开的后端的拖拉机前壳体（1）的后端部分内。 框架固定在传动壳体（1）上的内部凸台（2c）上，传动壳体（1）固定在前壳体的后部，并且具有敞开的前端，并且用于支撑传动轴（4,5）的相应一端 ，7,8），用于设置在前壳体的后半部分内的附加变速机构（6）和设置在变速器壳体的前半部分内的主变速机构（9）。 插入在附加主换挡机构之间的中间轴（17）也由支撑框支撑。 优选地由前和后轴承支撑板（10A，10B）组成的支撑框架有助于容易地组装改变机构。
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公开(公告)号：US4896487A
公开(公告)日：1990-01-30
申请号：US194328
申请日：1988-05-16
CPC分类号： A01D34/69 , A01D2034/6843 , A01D2101/00
摘要： In a self-propelled walking mower having a deck as a machine frame for supporting an engine, mowing cutter and front wheels, a transaxle-type transmission for driving rear wheels is housed at a rear end portion of the deck in a transmission casing an upper half of which is provided by a portion of top wall of the deck and by a peripheral wall which is formed integrally with the deck and projected downwardly from the top wall of deck. The transmission may be assembled in a lower half of the transmission casing, or alternatively in the upper half, and then the two casing halves may be secured together for completing an essential part of the mower drive system. The upper casing half integral with the deck contributes not only to an easy assemblage of the drive system but also to a reduction of weight and size of the mower.
摘要翻译： 在具有用于支撑发动机的机架，用于支撑发动机，割草机和前轮的甲板的自走式割草机中，用于驱动后轮的变速驱动桥式变速器容纳在甲板的后端部分的变速器壳体中，上部 其一半由甲板的顶壁的一部分和与甲板一体地形成并从甲板的顶壁向下突出的周壁提供。 变速器可以组装在变速器壳体的下半部分中，或者在上半部分中组装，然后可以将两个半壳体固定在一起以完成割草机驱动系统的主要部分。 与甲板一体化的上半壳不仅有助于驱动系统的易于组合，而且还有助于减轻割草机的重量和尺寸。
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公开(公告)号：US4841794A
公开(公告)日：1989-06-27
申请号：US195778
申请日：1988-05-19
申请人： Keisaku Hikishima
发明人： Keisaku Hikishima
CPC分类号： A01D34/69 , F16H3/083 , A01D2101/00 , Y10T74/1946 , Y10T74/19465
摘要： Within a transmission casing (3) having therein a drive shaft (4), driven by an engine (1) through a main clutch (2), and a hollow speed-change shaft (5), a key-shift transmission mechanism (8) is disposed which comprises a plurality of meshing gears (9I-9V, 10I-10V) mounted respectively on the drive and change shafts. An axle (6) drivingly connected to left and right drive wheels (7) extends through the hollow change shaft. One end of the change shaft is spaced from an inner wall surface of the transmission casing for disposing therebetween an auxiliary clutch (13) which is operable between the change shaft and axle. Both of the main and auxiliary clutches are operated together.The transmission mechanism is provided for a plurality of variable speeds of a mower in a compact fashion owing to a co-axial arrangement of the hollow change shaft and the axle passing therethrough. The auxiliary clutch which is provided also in a compact fashion permits to shift the transmission mechanism lightly and to pull the mower for retreating same with ease.
摘要翻译： 在其中具有通过主离合器（2）由发动机（1）驱动的驱动轴（4）的变速器壳体（3）和中空变速轴（5）中，键移动传动机构 ），其包括分别安装在驱动轴和变速轴上的多个啮合齿轮（9I-9V，10I-10V）。 驱动地连接到左右驱动轮（7）的轴（6）延伸穿过中空变速轴。 换档轴的一端与变速器壳体的内壁表面间隔开，用于在其间设置辅助离合器（13），该离合器可在换向轴和轴之间操作。 主离合器和辅助离合器都一起操作。 由于中空变速轴和穿过其中的轴的同轴布置，传动机构以紧凑的方式为割草机的多个可变速度提供。 还以紧凑的方式设置的辅助离合器允许轻轻地移动传动机构，并且可以容易地拉动割草机以进行后退。
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公开(公告)号：US4579183A
公开(公告)日：1986-04-01
申请号：US700484
申请日：1985-02-11
IPC分类号： B60K17/10 , B60K17/28 , B60K17/344 , F16D25/0638 , F16D67/04 , F16H37/06 , F16H37/08
CPC分类号： B60K17/105 , B60K17/28 , B60K17/344 , F16D25/0638 , F16D67/04
摘要： Transmission for working vehicles having forcedly driven rear wheels (2) as well as rear-PTO shaft (17) and mid-PTO shaft (19) for driving working implements is disclosed. The transmission includes a hydrostatic transmission (7) fixedly provided on the front of transmission case (8) so as to use pump shaft (23) thereof for the input of working implement-driving power at a high level into transmission case (8) from which the rear-PTO shaft (17) extends backwardly at a middle level and so as to permit a low level arrangement of the mid-PTO shaft (19). Within the transmission case (8), clutch means (31, 36) and speed-change means (32) for PTO-line are arranged at an upper half whereas speed-change gearing (43) and differential gearing (44) for vehicle drive line are arranged at a lower half by employing motor shaft (22) of the hydrostatic transmission as input shaft. A compact arrangement of transmission components is achieved so that transmission case (8) may be reduced in length as well as in weight.
摘要翻译： 公开了具有强制驱动的后轮（2）以及用于驱动作业工具的后PTO轴（17）和中间PTO轴（19）的工作车辆的变速器。 变速器包括固定地设置在变速箱（8）的前部上的静液压变速器（7），以便使用泵轴（23）将工作机构驱动力高位输入到变速箱（8）中， 后PTO轴（17）在中间水平向后延伸并且允许中PTO轴（19）的低水平布置。 在变速箱（8）内，用于PTO管线的离合器装置（31,36）和变速装置（32）布置在上半部，而用于车辆驱动的变速齿轮传动装置（43）和差动齿轮传动装置（44） 通过使用静液压传动装置的电动机轴（22）作为输入轴，在下半部排列。 实现传动部件的紧凑布置，使得变速箱（8）的长度和重量可以减小。
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