Forward-reverse drive control providing automatic braking

    公开(公告)号:US3606906A

    公开(公告)日:1971-09-21

    申请号:US3606906D

    申请日:1969-06-03

    申请人: INT HARVESTER CO

    发明人: SHORE DANIEL B

    摘要: TRACTOR HAVING DUMP VALVE AND FORWARD-REVERSE DRIVE CONTROL EMPLOYING SAME, EFFECTIVE TO AUTOMATICALLY BRAKE THE TRACTOR WHEN REVERSING THE TRACTOR''S DIRECTION OF MOTION. THE TRACTOR HAS BRAKES. A REVERSIBLE TRANSMISSION CONTROLLED BY THE DUMP VALVE, A RANGE SELECTOR VALVE HAVING A CONTROL PORTION, AND A RUN DETECTOR PUMP TO SENSE DIRECTION OF ROLLING MOVEMENT OF THE TRACTOR AND HAVING A DIRECTIONALIZED PUMP OUTPUT. THE DUMP VALVE GENERALLY RECEIVES AGAINST PRESSURE MOVABLE END AREAS THEREOF AN OUTPUT FROM THE RANGE SELECTOR VALVE AND DIRECTS CONTROL PRESSURE TO OPERATE THE BRAKES AND TRANSMISSION IN ALTERNATION TO ONE ANOTHER AND, SPECIFICALLY: RECEIVES AGAINST THE PRESSURE MOVABLE END AREAS THE DIRECTIONALIZED PUMP OUTPUT SO AS TO BE HYDRAULICALLY BALANCED IN A CENTERED POSITION OPERATING THE TRACTOR WITH TRANSMISSION ENGAGED AND BRAKES DISENGAGED, RECEIVES AGAINST THE PRESSURE MOVABLE END AREAS AN UNBALANCING FORCE FROM THE RANGE SELECTOR VALVE CONTROL PORTION CAUSING THE DUMP VALVE TO SHIFT OFF CENTER AND DUMP, NEUTRALIZING THE TRANSMISSION AND SETTING THE BRAKES, AND HAVING VALVE SPRINGS EFFECTIVE TO MECHANICALLY REBALANCE THE DUMP VALVE ATTENDANT WITH SLOW DOWN OF THE RUN DETECTOR PUMP, CAUSING THE DUMP VALVE TO RECENTER, RELEASING THE BRAKES AND ENGAGING THE TRANSMISSION IN AN OPPOSITE DRIVE SETTING.

    Piston-to-rod detachable connection
    4.
    发明授权
    Piston-to-rod detachable connection 失效
    活塞式可拆卸连接

    公开(公告)号:US3867871A

    公开(公告)日:1975-02-25

    申请号:US35472473

    申请日:1973-04-26

    申请人: INT HARVESTER CO

    发明人: SHORE DANIEL B

    IPC分类号: F16B3/00 F16J1/12

    摘要: Detachable connection of a piston onto a reduced diameter section of a rod, at a location thereon between spaced apart shoulders provided by the reduced diameter section. The piston is wedged into final tightness by clamped double angle wedging segments, the clamping being accomplished by a plurality of diametric pairs of threaded, piston hold-down devices.

    摘要翻译: 可活动地连接到杆的直径减小的部分上,其位于由减径部分提供的间隔开的肩部之间的位置处。 活塞通过夹紧的双角楔形段楔入最终紧密度,夹紧由多个直径对的螺纹,活塞压紧装置完成。

    Automatic bucket positioning device
    5.
    发明授权
    Automatic bucket positioning device 失效
    自动立柱定位装置

    公开(公告)号:US3698583A

    公开(公告)日:1972-10-17

    申请号:US3698583D

    申请日:1970-09-14

    申请人: INT HARVESTER CO

    发明人: SHORE DANIEL B

    IPC分类号: E02F3/43 F15B13/04 E02F3/00

    CPC分类号: E02F3/432 F15B13/04

    摘要: Hydraulic means operating in conjunction with a hydraulic power unit for automatically stopping in an intermediate position a device whose position is controlled by the hydraulic power unit. A digging bucket is automatically stopped at a digging position intermediate to dumping and breakout positions with respect to a boom arm. A pilot valve connected to an intermediate region of a cylinder of the hydraulic power unit regulates the control valve for the power unit.

    Forward reverse drive control providing automatic braking
    6.
    发明授权
    Forward reverse drive control providing automatic braking 失效
    前向逆向驱动控制提供自动制动

    公开(公告)号:US3858696A

    公开(公告)日:1975-01-07

    申请号:US25496672

    申请日:1972-05-19

    申请人: INT HARVESTER CO

    发明人: SHORE DANIEL B

    摘要: Tractor having dump valve and forward-reverse drive control employing same, effective to automatically brake the tractor when reversing the tractor''s direction of motion. The tractor has brakes, reversible transmission controlled by the dump valve, a range selector valve having a control portion, and a run detector pump to sense direction of rolling movement of the tractor and having a directionalized pump output. The dump valve generally receives, against pressure movable end areas thereof, an output from the range selector valve and directs control pressure to operate the brakes and transmission in alternation to one another and, specifically: receives against the pressure movable end areas the directionalized pump output so as to by hydraulically balanced in a centered position operating the tractor with transmission engaged and brakes disengaged; receives against the pressure movable end areas an unbalancing force from the range selector valve control portion causing the dump valve to shift off center and dump, neutralizing the transmission and setting the brakes; and having valve springs effective to mechanically rebalance the dump valve attendant with slowdown and drop of unbalancing pressure from the run detector pump, causing the dump valve to recenter, releasing the brakes and engaging the transmission in an opposite drive setting.

    摘要翻译: 拖拉机具有倾卸阀和使用相同的倒档驱动控制,有效地在反转拖拉机的运动方向时自动制动拖拉机。 拖拉机具有制动器,由排放阀控制的可逆变速器,具有控制部分的换档阀,以及用于感测拖拉机的滚动运动方向并具有定向泵输出的行程检测器泵。 排放阀通常接收来自范围选择阀的输出的压力可移动的端部区域,并且引导控制压力以相互交替地操作制动器和变速器,并且具体地:接收压力可移动端部区域的定向泵输出 以便通过液压平衡的中心位置操作拖拉机,变速器接合和制动器分离; 从压力可移动端区域接收来自范围选择阀控制部分的不平衡力,导致排出阀偏离中心和倾卸,中和传动并设定制动器; 并且具有阀弹簧,其有效地机械地重新平衡卸载阀伴随着运行检测器泵的减速和不平衡压力的下降,导致卸载阀更新,释放制动器并将变速器与相反的驱动装置接合。

    Forward-reverse drive control providing automatic braking

    公开(公告)号:US3876033A

    公开(公告)日:1975-04-08

    申请号:US47712974

    申请日:1974-06-06

    申请人: INT HARVESTER CO

    发明人: SHORE DANIEL B

    IPC分类号: B60T7/12 B60T11/10 B60K27/04

    摘要: Tractor having dump valve and forward-reverse drive control employing same, effective to automatically brake the tractor when reversing the tractor''s direction of motion. The tractor has brakes, a reversible transmission controlled by the dump valve, a range selector valve having a control portion, and a run detector pump to sense direction of rolling movement of the tractor and having a directionalized pump output. The dump valve generally receives, against pressure movable end areas thereof, an output from the range selector valve and directs control pressure to operate the brakes and transmission in alternation to one another and, specifically: receives against the pressure movable end areas the directionalized pump output so as to be hydraulically balanced in a centered position operating the tractor with transmission engaged and brakes disengaged; receives against the pressure movable end areas an unbalancing force from the range selector valve control portion causing the dump valve to shift off center and dump, neutralizing the transmission and setting the brakes; and having valve springs effective to mechanically rebalance the dump valve attendant with slowdown and drop of unbalancing pressure from the run detector pump, causing the dump valve to recenter, releasing the brakes and engaging the transmission in an opposite drive setting.