CN201152256Y - Triangular rotor hydraulic pump - Google Patents
Triangular rotor hydraulic pump Download PDFInfo
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- CN201152256Y CN201152256Y CNU2007203113882U CN200720311388U CN201152256Y CN 201152256 Y CN201152256 Y CN 201152256Y CN U2007203113882 U CNU2007203113882 U CN U2007203113882U CN 200720311388 U CN200720311388 U CN 200720311388U CN 201152256 Y CN201152256 Y CN 201152256Y
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- rotor
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- hydraulic pump
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- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims 4
- 239000012530 fluid Substances 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 68
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
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Abstract
Description
技术领域 technical field
本实用新型涉及一种转子液压泵,特别是一种转子形状为三角形转子液压泵。The utility model relates to a rotor hydraulic pump, in particular to a triangular rotor hydraulic pump.
背景技术 Background technique
转子液压泵是在液压系统及机械传动中作为能提供一定流量、压力的液压能源或循环润滑的润滑油源的装置。现有的液压泵主要有齿轮泵、叶片泵和柱塞泵。叶片泵属于一种转子泵,它主要由转子、定子、叶片等件组成。定子具有圆柱形内表面,定子和转子之间存在偏心距,叶片装在转子上的槽内,可以在槽内灵活滑动。当转子回转时,由于离心力和叶片根部压力油的作用,叶片顶部紧贴在定子内表面上,这样每两个叶片、定子、转子之间就形成了若干个密封的、容积可变的工作腔,利用工作腔容积的变化就可以完成吸油和压油过程。叶片泵由于结构紧凑,体积小,效率较高,因而广泛用于各种中、低压液压系统中。但是,叶片泵的自吸能力差,且对油污敏感,因而在某些场合限制了其应用。The rotor hydraulic pump is a device that can provide hydraulic energy with a certain flow and pressure or a lubricating oil source for circulating lubrication in hydraulic systems and mechanical transmissions. Existing hydraulic pumps mainly include gear pumps, vane pumps and plunger pumps. The vane pump belongs to a kind of rotor pump, which is mainly composed of rotor, stator, vane and other parts. The stator has a cylindrical inner surface, and there is an eccentric distance between the stator and the rotor. The blades are installed in the grooves on the rotor and can slide flexibly in the grooves. When the rotor rotates, due to the centrifugal force and the pressure oil at the blade root, the top of the blade is close to the inner surface of the stator, so that several sealed and variable-volume working chambers are formed between every two blades, the stator, and the rotor. , the process of oil absorption and oil pressure can be completed by using the change of the volume of the working chamber. Due to its compact structure, small size and high efficiency, the vane pump is widely used in various medium and low pressure hydraulic systems. However, the vane pump has poor self-priming ability and is sensitive to oil pollution, which limits its application in some occasions.
发明内容 Contents of the invention
本实用新型的目的在于克服上述现有技术的缺点,提供了一种结构简单紧凑,自吸能力强的三角形转子液压泵。The purpose of the utility model is to overcome the above-mentioned shortcomings of the prior art and provide a triangular rotor hydraulic pump with simple and compact structure and strong self-priming ability.
为达到上述目的,本实用新型采用的技术方案是:包括定子和设置在定子内腔的转子,定子上设置有与其内腔相连通的进油口和出油口、,进油口2、和出油口分别通过进油槽和出油槽与吸油口和压油口相连通,其特征在于:所说的定子的内腔呈“8”字形的余摆曲线面,所说的转子呈等边三角形,且在转子的中心还设置有与动力输入轴上的中心齿轮相啮合的内齿圈。In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: comprising a stator and a rotor arranged in the inner cavity of the stator, the stator is provided with an oil inlet and an oil outlet communicating with the inner cavity, the
本实用新型的转子的三条边均为外向突出的弧形,且在转子的三条边分别设置有油封;进油口和出油口分别通过进油口单向阀和出油口单向阀与进油槽和出油槽相连通。The three sides of the rotor of the utility model are all outwardly protruding arcs, and the three sides of the rotor are respectively provided with oil seals; The oil inlet tank and the oil outlet tank are connected.
由于本实用新型的转子为三角形,在转动时的任意时刻,其三个顶角和定子内腔始终保持良好的接触,因此封闭性好,自吸能力强,转动平稳,噪音较小。由于转子每转一周,吸油压油六次,因此它有较高的效率。Since the rotor of the utility model is triangular, at any time during rotation, its three vertices are always in good contact with the inner cavity of the stator, so it has good sealing performance, strong self-priming ability, stable rotation and low noise. Since the rotor sucks and presses oil six times per revolution, it has higher efficiency.
附图说明 Description of drawings
图1为本实用新型的第一工作过程示意图;Fig. 1 is the first working process schematic diagram of the present utility model;
图2为本实用新型的第二工作过程示意图;Fig. 2 is the second working process schematic diagram of the present utility model;
图3为本实用新型的第三工作过程示意图;Fig. 3 is the 3rd working process schematic diagram of the present utility model;
图4为本实用新型的第四工作过程示意图。Fig. 4 is a schematic diagram of the fourth working process of the present invention.
具体实施方式 Detailed ways
下面结合附图对本实用新型的结构原理和工作原理作进一步详细说明。Below in conjunction with accompanying drawing, structural principle and working principle of the present utility model are described in further detail.
参见图1,本实用新型由定子3和转子4构成,定子3内腔呈“8”字形的余摆曲线面,且在上面开有进油口2、进油口11、出油口5和出油口12。进油口2、11分别通过进油口单向阀17、10与进油槽16相连,进油槽16上的吸油口14与油箱13相通。出油口5、12分别通过单向阀出油口7、15与出油槽6相连,出油槽6与压油口1相通。进油槽16和出油槽6相互不通,各自构成独立通路。转子4呈“等边三角形”,且每条边都有一定向外突出的弧度。转子4的中心处装有可与安装在动力输入轴上的中心齿轮8相啮合的内齿圈9。Referring to Fig. 1, the utility model is made up of
当输入轴上的中心齿轮8顺时针转动时,三角形转子4的中心内齿圈9绕输入轴中心齿轮8公转,同时三角形转子4本身又绕其中心自转。在三角形转子4顺时针转动时,以三角形转子4中心为中心的内齿圈9与以输入轴中心为中心的中心齿轮8啮合,内齿圈9与中心齿轮8的齿数之比为3∶2。上述运动关系使得三角形转子4顶点的运动轨迹(即定子内腔的形状)似“8”字形。三角形转子4把定子3的内腔分成三个独立的、封闭的、容积可变的空间,三个空间随着三角形转子4的运动使容积不断变化,从而各自先后完成吸油和压油过程。三角形转子4自转一周,其各边对应的容积空间吸油、压油两次,液压泵整体吸油、压油六次。When the
为了获得更好的封闭性、延长液压泵的寿命、提高效率,在三角形转子4的三条边18、19、20上装上油封。In order to obtain better sealing, prolong the life-span of the hydraulic pump, and improve efficiency, oil seals are installed on three
参见图1,当三角形转子4转到图1所示位置时,边18对应的容积空间达到最大,吸油达到饱和即将开始压油过程。随着三角形转子4的顺时针继续转动,边18对应的容积空间逐渐变小,单向阀17关闭,单向阀7打开开始压油,使液压油经过出油槽6从压油口1流出;边19对应容积空间逐渐变大,单向阀10打开,液压油由油缸13经过吸油口14、进油槽16被吸入容积腔;边20对应的容积空间变小,单向阀15打开,液压油由压油口1排出。Referring to FIG. 1 , when the
参见图2,三角形转子4转到图2位置时,边18对应的容积空间变到最小,压油结束,随着转子的顺时针转动,边18对应的容积空间又逐渐变大,单向阀7关闭,单向阀10打开,容积空间开始吸油;边19对应的空间逐渐变小,单向阀15被打开,对应的容积空间开始压油;边20对应的容积空间变大,继续吸油。Referring to Figure 2, when the
参见图3,三角形转子4转到图3位置时,边18对应的容积空间吸油完成,开始压油;边19对应的容积空间继续变大,继续吸油。边20对应的容积空间继续变小,继续压油。Referring to FIG. 3 , when the
参见图4,三角形转子4转到图4位置时,边18对应的容积空间压油完成,开始吸油;边19对应的容积空间继续变小,继续压油;边18对应的容积空间继续变大,继续吸油。Referring to Fig. 4, when the
三角形转子4各边对应的三个容积空间随着三角形转子4的顺时针转动不断变化,从而各自先后完成吸油和压油过程。三角形转子4自转一周,其各边对应的容积空间吸油、压油两次,液压泵整体吸油、压油六次。The three volume spaces corresponding to each side of the
三角形转子4转动时的任意时刻,其三个顶角和定子3内腔始终保持良好的接触,因此封闭性好,自吸能力强,转动平稳,噪音较小。由于转子每转一周,吸油压油六次,因此它有较高的效率。At any time when the
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNU2007203113882U CN201152256Y (en) | 2007-12-24 | 2007-12-24 | Triangular rotor hydraulic pump |
Applications Claiming Priority (1)
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CNU2007203113882U CN201152256Y (en) | 2007-12-24 | 2007-12-24 | Triangular rotor hydraulic pump |
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CN201152256Y true CN201152256Y (en) | 2008-11-19 |
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CNU2007203113882U Expired - Fee Related CN201152256Y (en) | 2007-12-24 | 2007-12-24 | Triangular rotor hydraulic pump |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105782020A (en) * | 2016-03-02 | 2016-07-20 | 常州大学 | Same-direction-engaged Lelo triangular rotor pump |
CN109944796A (en) * | 2019-04-25 | 2019-06-28 | 杭州三花研究院有限公司 | oil pump |
CN111852848A (en) * | 2019-04-25 | 2020-10-30 | 杭州三花研究院有限公司 | Oil pump |
CN113803249A (en) * | 2020-06-11 | 2021-12-17 | 山东坊能新动能科学研究院有限公司 | Active check valve for rotor pump |
-
2007
- 2007-12-24 CN CNU2007203113882U patent/CN201152256Y/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105782020A (en) * | 2016-03-02 | 2016-07-20 | 常州大学 | Same-direction-engaged Lelo triangular rotor pump |
CN109944796A (en) * | 2019-04-25 | 2019-06-28 | 杭州三花研究院有限公司 | oil pump |
CN111852848A (en) * | 2019-04-25 | 2020-10-30 | 杭州三花研究院有限公司 | Oil pump |
CN113803249A (en) * | 2020-06-11 | 2021-12-17 | 山东坊能新动能科学研究院有限公司 | Active check valve for rotor pump |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20100125 |