CN201396276Y - 液压叶片马达 - Google Patents

液压叶片马达 Download PDF

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Publication number
CN201396276Y
CN201396276Y CN2009201025119U CN200920102511U CN201396276Y CN 201396276 Y CN201396276 Y CN 201396276Y CN 2009201025119 U CN2009201025119 U CN 2009201025119U CN 200920102511 U CN200920102511 U CN 200920102511U CN 201396276 Y CN201396276 Y CN 201396276Y
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oil
stator
blade
groove
hydraulic
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武振芳
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C2/00—Rotary-piston engines
    • F03C2/22—Rotary-piston engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F01C1/3446—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F01C21/0818—Vane tracking; control therefor
    • F01C21/0827—Vane tracking; control therefor by mechanical means
    • F01C21/0845—Vane tracking; control therefor by mechanical means comprising elastic means, e.g. springs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hydraulic Motors (AREA)

Abstract

本实用新型公开了一种液压叶片马达，其液压油进、出管口直接布置在定子的外园上，使液压油流过的路径最短，流动阻力最小，油路的截面根据需要可以进行扩大，液压油直接作用在被推动的叶片上，提高了功率和转速；在定子内曲面的过渡曲面段加工较宽、较深的油槽，不仅扩大了油路的截面积，同时也大大地减少了叶片同定子内面的接触面积，从而减少了磨擦力，提高了机械效率，该油槽两端与密封圆弧之间设一个渐缩的三角形卸菏槽，使高压油进入定子内面后，能同时迅速地分布在转子上高压区的每一个叶片中间，对叶片产生稳定的、最大的综合推力，不产生困油和脉动现象。

Description

液压叶片马达
技术领域
本实用新型涉及一种液压动力马达，尤其是一种液压叶片马达。
背景技术
液压叶片马达(叶片泵)虽然很早就开始应用了，但是从现有的液压叶片马达的结构中都有一个叫配流盘的构件，液压油的进、出口分布在转子的两边。这样液压叶片马达工作时，液压油必须通过转子两边的进、出口，再经过配流盘才能进(出)入叶片中间，对叶片产生推动。所以，液压油流过的油路狭小曲折，不仅增加了液压油的流动阻力，降低了效率，而且想进一步扩大油路通道的截面积也很困难。所以，现有的液压叶片马达(叶片泵)大多应用在数控机床上。在一些需要高转速、大功率(大流量)的场合就无法使用。
实用新型内容
本实用新型需要解决的技术问题是提供一种成本低、转速高、功率大、适用于大功率场合的液压叶片马达。
为解决上述问题，本实用新型所采取的技术方案是：一种液压叶片马达，包括定子和装有叶片的转子，其中叶片装在转子的叶片槽中，能沿叶片槽滑动，叶片槽中还装有弹簧，弹簧位于叶片底部，所述定子上开有两组液压油进出管口，定子内曲面的过渡曲面上开有四个油槽，油槽位置对称位于液压油进出管口处，两油槽之间留有密封圆弧。
所述油槽的两端与密封圆弧之间设三角形卸荷槽。
所述叶片的顶面为弧面。
采用上述技术方案所产生的有益效果在于：本新型将液压叶片马达的液压油进、出管口直接布置在定子的外园上，使液压油流过的路径最短，流动阻力最小，油路的截面根据需要可以进行扩大，液压油直接作用在被推动的叶片上，提高了功率和转速；在定子内曲面的过渡曲面段加工较宽、较深的油槽，不仅扩大了油路的截面积，同时也大大地减少了叶片同定子内面的接触面积，从而减少了磨擦力，提高了机械效率，该油槽两端与密封圆弧之间设一个渐缩的三角形卸菏槽，使高压油进入定子内面后，能同时迅速地分布在转子上高压区的每一个叶片中间，对叶片产生稳定的、最大的综合推力，不产生困油和脉动现象。
附图说明
图1是本实用新型液压叶片马达剖视结构示意图；
具体实施方式
下面结合附图对本实用新型做进一步详细描述：
本新型包括定子1和装有叶片8的转子2，其中在转子2上开有与叶片8配合的叶片槽，槽中先装弹簧7，再装叶片8，使弹簧7位于叶片底部，即在叶片底面和转子之间装有弹簧，叶片8能沿叶片槽来回滑动，以更好的与定子内曲面接触，减少高压区油向低压油区的泄漏，其中在定子外圆上开有两组液压油进出管口3，使液压油流过的路径最短，流动阻力最小。油路的截面根据需要可以进行扩大设计，使液压油直接作用在被推动的叶片上，从而提高了转速和功率，提高了机械效率。在定子内曲面的过渡曲面段加工出一个较宽、较深的油槽6；在该油槽6两端与密封圆弧5(两油槽之间的定子内曲面弧线)方向延伸加工形成一个渐缩的三角形卸荷槽4。这样，高压油进入定子内面后，就能同时迅速地分布在转子上高压区的每一个叶片8中间，对叶片8产生稳定的、最大的综合推力。在定子的过渡曲面上加工出较宽的油槽，不仅扩大了油路的截面积，同时也大大地减少了叶片同定子内曲面的接触面积，从而减少了磨擦力，提高了机械效率。
将定子内曲面的密封圆弧面，油槽弧面所占的弧度比例作了调整。密封圆弧面除了保留30度对应的密封弧度外，分别向两边各延伸5度对应的弧度长。在此弧度上加工出三角形的卸荷槽。余下的为过渡曲面。这样，卸荷槽分别处在同密封圆弧面相等半径的弧面上，为叶片的平稳过渡创造了条件，因此叶片马达不会产生困油的现象，也不会产生脉动现象。将叶片的顶面加工成同定子大圆弧相同半径的圆弧面(目前大多为平面)。这样，当叶片旋转到大圆弧区域时，叶片和定子内面的接触由以前的线接触，变成了同样曲率半径的面接触。可以减少高压区油向低压油区的泄漏。由于接触面之间存在着润滑油，所以磨擦力不会增大。
另外，提高转子外圆和定子内圆(特别是小圆弧面)的加工精度和光洁度。减小转子和定子小圆弧面的间隙，使其达到动配合的程度(以前间隙为0.5-1毫米)。从而可以减小高压区油向低压区的泄漏，提高容积效率。在转子两端面、定子和机盖内面加工出相互配合的凸凹阻尼线槽。这样，可以减少端面之间的泄漏，提高容积效率。

Claims (3)

1、一种液压叶片马达，包括定子和装有叶片的转子，其中叶片装在转子的叶片槽中，能沿叶片槽滑动，叶片槽中还装有弹簧，弹簧位于叶片底部，其特征在于：所述定子上开有两组液压油进出管口，定子内曲面的过渡曲面上开有四个油槽，油槽位置对称位于液压油进出管口处，两油槽之间留有密封圆弧。
2、根据权利要求1所述的液压叶片马达，其特征在于所述油槽的两端与密封圆弧之间设三角形卸荷槽。
3、根据权利要求1所述的液压叶片马达，其特征在于所述叶片的顶面为弧面。
CN2009201025119U 2009-04-28 2009-04-28 液压叶片马达 Expired - Fee Related CN201396276Y (zh)

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PCT/CN2010/071129 WO2010124541A1 (zh) 2009-04-28 2010-03-18 高转速大扭矩液压叶片马达

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010124541A1 (zh) * 2009-04-28 2010-11-04 Wu Zhenfang 高转速大扭矩液压叶片马达
CN102261456A (zh) * 2011-01-21 2011-11-30 佛山市广顺电器有限公司 一种用于高速传动的摩擦式增速器
CN102562579A (zh) * 2011-12-10 2012-07-11 马燕翔 一种滑片泵的定子曲线及具有该定子曲线的叶片泵
CN102828896A (zh) * 2012-09-20 2012-12-19 重庆理工大学 变容积式调速水泵水轮机
CN110578651A (zh) * 2019-09-16 2019-12-17 杨甫在 一种单向液压马达
CN111810049A (zh) * 2020-08-04 2020-10-23 西南石油大学 一种容积式定轴旋转井下动力马达
CN115030947A (zh) * 2022-05-26 2022-09-09 汪宇 一种液压螺母

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CN106640201B (zh) * 2016-12-30 2019-02-01 谢军 一种齿型叶片马达
CN109882410B (zh) * 2019-04-12 2024-01-30 重庆工商大学 一种旋片电子抽气泵

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CN201396276Y (zh) * 2009-04-28 2010-02-03 武振芳 液压叶片马达

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010124541A1 (zh) * 2009-04-28 2010-11-04 Wu Zhenfang 高转速大扭矩液压叶片马达
CN102261456A (zh) * 2011-01-21 2011-11-30 佛山市广顺电器有限公司 一种用于高速传动的摩擦式增速器
CN102261456B (zh) * 2011-01-21 2014-12-31 佛山市广顺电器有限公司 一种用于高速传动的摩擦式增速器
CN102562579A (zh) * 2011-12-10 2012-07-11 马燕翔 一种滑片泵的定子曲线及具有该定子曲线的叶片泵
CN102562579B (zh) * 2011-12-10 2015-03-11 马燕翔 一种滑片泵的定子曲线及具有该定子曲线的叶片泵
CN102828896A (zh) * 2012-09-20 2012-12-19 重庆理工大学 变容积式调速水泵水轮机
CN102828896B (zh) * 2012-09-20 2015-09-09 重庆理工大学 变容积式调速水泵水轮机
CN110578651A (zh) * 2019-09-16 2019-12-17 杨甫在 一种单向液压马达
CN111810049A (zh) * 2020-08-04 2020-10-23 西南石油大学 一种容积式定轴旋转井下动力马达
CN115030947A (zh) * 2022-05-26 2022-09-09 汪宇 一种液压螺母

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