Swash plate type axial piston pump and method of assembling the same
    25.
    发明授权
    Swash plate type axial piston pump and method of assembling the same 失效
    斜盘式轴向柱塞泵及其组装方法

    公开(公告)号:US5803714A

    公开(公告)日:1998-09-08

    申请号:US626550

    申请日:1996-04-02

    摘要: A swash plate type axial piston pump of enhanced assemblability and high assembling efficiency, in which looseness between constituent members of the pump is suppressed to minimum. A valve plate (31) and a cylinder block (15) are inserted in a first housing section (1a) sequentially, and then a second housing section (1b) is installed on the cylinder block (15) around an outer periphery and fixedly secured to the first housing section (1a), wherein an annular resilient member (29), an annular supporting member (24) and an annular shoe holder (27) are inserted in the second housing section (1b) sequentially. A plurality of pistons (21) each having a shoe (25) connected pivotally at one end are inserted into the cylinders (13), respectively, of the cylinder block (15) through retaining holes (27a), respectively, formed in the annular shoe holder (27). A swash plate (23) is inserted into the second housing section (1b) such that one lateral surface thereof bears against the shoes (25) with an outer peripheral portion of the swash plate (23) bearing against an end surface of the annular supporting member (24). A third housing section (1c) supporting the rotatable shaft (3) is attached to the second housing section (1b) and then a bracket (8) incorporating an input shaft (11) and a magnetic coupling (9) is attached to the third housing section (1c).

    摘要翻译: 具有增强的组装性和高组装效率的斜盘式轴向柱塞泵,其中泵的构成构件之间的松动被抑制到最小。 阀板(31)和气缸体(15)依次插入第一壳体部分(1a)中,然后第二壳体部分(1b)围绕外周安装在气缸体(15)上并固定 到第一容纳部分(1a),其中环形弹性部件(29),环形支撑部件(24)和环形销托架(27)依次插入第二壳体部分(1b)中。 各个具有在一端枢转连接的滑块(25)的多个活塞(21)分别通过形成在环形件(2)中的保持孔(27a)分别插入到气缸体(15)的气缸(13) 鞋架(27)。 旋转斜盘(23)插入到第二壳体部分(1b)中,使得其一个侧表面抵靠着鞋(25),其中斜盘(23)的外周部分抵靠环形支撑件 会员(24)。 支撑旋转轴(3)的第三壳体部分(1c)附接到第二壳体部分(1b),然后将包括输入轴(11)和磁耦合器(9)的支架(8)附接到第三壳体部分 住房部分(1c)。

    Combination of two pressurized fluid motors
    26.
    发明授权
    Combination of two pressurized fluid motors 失效
    两台加压流体马达的组合

    公开(公告)号:US5473894A

    公开(公告)日:1995-12-12

    申请号:US257697

    申请日:1994-06-09

    摘要: In a combination of two pressurized fluid motors fed in parallel by a common feed circuit, each of the pressurized fluid motors includes a casing and a cylinder block rotatable about an axis relative to a cam constrained to rotate with said casing and having a communication side perpendicular to the axis. An internal fluid distributor is constrained to rotate with the cam. It has a distribution side perpendicular to the axis and bears against the communication side. Distribution conduits open onto the distribution side and are formed in the internal fluid distributor of each motor. The casings of the two motors are constrained to rotate together.

    摘要翻译: 在通过共同进料回路并联供给的两个加压流体马达的组合中,每个加压流体马达包括壳体和可相对于被限制为与所述壳体一起旋转的凸轮相对于轴线旋转的气缸体,并且具有垂直的连通侧 到轴。 内部流体分配器被限制为与凸轮一起旋转。 它具有垂直于轴线的分布面并且抵靠通信侧。 在分配侧开放的分配管道形成在每个电动机的内部流体分配器中。 两个电动机的壳体被限制在一起旋转。

    Hydraulic drive unit for driving a drilling tool
    27.
    发明授权
    Hydraulic drive unit for driving a drilling tool 失效
    用于驱动钻具的液压驱动单元

    公开(公告)号:US5437338A

    公开(公告)日:1995-08-01

    申请号:US162492

    申请日:1993-12-03

    IPC分类号: E21B3/02 F03C1/24 F03C1/26

    CPC分类号: E21B3/02 F03C1/2407 F03C1/26

    摘要: This invention relates to a drive unit comprising a frame; a rotating shaft, a first fluid motor presenting a cam fixed with respect to the frame; and a cylinder block fast with the shaft driven by the first motor at a first speed of rotation.According to the invention, the shaft presents a recess conveying a drilling fluid; the cylinder block of the first motor is coaxial to the axis of rotation; drive unit comprises a second motor coupled in rotation to the shaft and driving it at a second speed of rotation higher than the first speed of rotation; a first pinion gear is fast with and coaxial to the shaft; the second motor presents an output shaft fast with a second pinion gear meshing with the first pinion gear; and the first motor is of the type with "disengageable pistons".One application is the production of a high-performance drilling assembly.

    摘要翻译: 本发明涉及一种包括框架的驱动单元; 旋转轴,第一流体马达,其具有相对于框架固定的凸轮; 以及以第一速度旋转由第一电动机驱动的轴快速的气缸体。 根据本发明,轴提供输送钻井液的凹槽; 第一马达的气缸体与旋转轴线同轴; 驱动单元包括第二马达,所述第二马达以旋转方式耦合到所述轴并以比所述第一旋转速度高的第二旋转速度驱动; 第一小齿轮快速地与轴同轴; 第二马达以与第一小齿轮啮合的第二小齿轮快速地提供输出轴; 并且第一马达是具有“可分离活塞”的类型。 一种应用是生产高性能钻井组件。

    Rotary type fluid energy convertor
    28.
    发明授权
    Rotary type fluid energy convertor 失效
    旋转式流体能量转换器

    公开(公告)号:US5136931A

    公开(公告)日:1992-08-11

    申请号:US679427

    申请日:1991-04-02

    申请人: Yasuo Kita

    发明人: Yasuo Kita

    CPC分类号: F04B1/1072 F04B49/128

    摘要: A rotary-type fluid energy convertor comprises a pair of cylindrical body members, a pintle inserted into the cylindrical body members and having a cylindrical central portion between the body members, a cylinder barrel mounted on an outer periphery surface of the central portion of the pintle, the cylinder barrel being provided with a plurality of spaces isometrically arranged in radial directions thereof, a plurality of bushings fitted into the spaces, a rotary body mounted to the body members to be rotatable and having an inner periphery sectioned into a plurality of flat surface portions against which the top flat portions of the bushings closely abut, respectively, so as to form pressure chambers therebetween, and high and low pressure side fluid passages formed between the cylinder barrel and the cylindrical portion of the pintle. the pintle is disposed so as to be movable parallel to a direction axially normal to the body members so that an amount of eccentricity between a center of the cylindrical portion of the pintle and a rotation center of the rotary body is to be adjustable. The pintle is provided with fluid passages which communicate the fluid inlet and outlet formed to the body members with ports formed to the high and low pressure side fluid passages. The body members is provided with a pair of high and low pressure side pressure chambers at portions symmetric with the high and low pressure side fluid passages, respectively.

    Axial piston motor or pump with an arrangement to thrust the rotor
against a bearing of the shaft
    30.
    发明授权
    Axial piston motor or pump with an arrangement to thrust the rotor against a bearing of the shaft 失效
    轴向活塞马达或泵,其具有将转子推靠在轴的轴承上的装置

    公开(公告)号:US4793239A

    公开(公告)日:1988-12-27

    申请号:US41961

    申请日:1987-04-24

    申请人: Karl Eickmann

    发明人: Karl Eickmann

    摘要: In an axial piston motor or pump the cylinder barrel is mounted on a medial shaft which has a shoulder which axially bears against the front end of the rotor barrel. The rear end of the medial shaft is radially borne in a housing portion. The front portion of the medial shaft is provided with a bearing member of an axial thrust bearing for support on a respective axial thrust bearing member in the housing. On the rear end of the rotary barrel an axially selfthrusting control body is provided to seal the flow of fluid to and from the cylinders of the rotary barrel. The control body presses against the rotary barrel, the rotary barrel presses against the bearing of the medial shaft and the thrust bearing member of the shaft bears on the thrust bearing member of the housing. As a result thereof the cylinders in the rotary barrel can be straight through bores. The manufacturing of the rotor barrel is thereby simplified and the flow acceleration losses of former sack-bare bore type cylinders are prevented.

    摘要翻译: 在轴向活塞马达或泵中,缸筒安装在内侧轴上,该内侧轴具有轴向地抵靠转子筒的前端的肩部。 内侧轴的后端径向地承载在壳体部分中。 内侧轴的前部设置有用于支撑在壳体中的相应的轴向推力轴承构件上的轴向推力轴承的轴承构件。 在旋转筒的后端,提供轴向自调控制体以密封流体流向和从旋转筒的圆筒的流动。 控制体压靠旋转筒,旋转筒压靠内侧轴的轴承,轴的止推轴承部件承载在壳体的止推轴承部件上。 结果,旋转筒中的圆筒可以是直通孔。 因此,转子筒的制造被简化,并且防止了前袋式裸孔型气缸的流动加速损失。