CN201152256Y - Triangular rotor hydraulic pump - Google Patents

Triangular rotor hydraulic pump Download PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
oil
rotor
stator
hydraulic pump
triangular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2007203113882U
Other languages
Chinese (zh)
Inventor
郭红利
陆赤音
史鹏涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi University of Science and Technology
Original Assignee
Shaanxi University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shaanxi University of Science and Technology filed Critical Shaanxi University of Science and Technology
Priority to CNU2007203113882U priority Critical patent/CN201152256Y/en
Application granted granted Critical
Publication of CN201152256Y publication Critical patent/CN201152256Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Rotary Pumps (AREA)

Abstract

A triangular rotor hydraulic pump comprises a stator and a rotor arranged at the inner cavity of the stator. An oil inlet and an oil outlet which are communicated with the inner cavity are arranged on the stator, the oil inlet and the oil outlet are respectively communicated with an oil sucking port and an oil pressing port through an oil-entry trough and an oil-out trough, the inner cavity of the stator presents a 8-shaped trochoid curve surface, the rotor presents an equilateral triangle, and the center of the rotor is provided with an annular gear engaged with a sun gear on a power input shaft. The rotor of the triangular rotor hydraulic pump presents a triangle, the three top angles of the rotor always contact sufficiently with the inner cavity of the stator at any time of rotating, so that the sealing property is favorable, the self-suction capacity is better, the rotation is smooth, and the noise is less. In addition, because the pump can suck and press oil six times when the rotor rotates one lap, the efficiency is higher.

Description

三角形转子液压泵 Triangular rotor hydraulic pump

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 oil inlet 2, and The oil outlet is connected to the oil suction port and the oil pressure port respectively through the oil inlet groove and the oil outlet groove. It is characterized in that: the inner cavity of the stator is an "8"-shaped cycloidal curve surface, and the rotor is an equilateral triangle. , and the center of the rotor is also provided with an inner ring gear that meshes with the sun gear on the power input shaft.

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 stator 3 and rotor 4, and stator 3 cavity is the trochoid curve surface of " 8 " shape, and has oil inlet 2, oil inlet 11, oil outlet 5 and Oil outlet 12. The oil inlets 2 and 11 are connected to the oil inlet groove 16 through the oil inlet check valves 17 and 10 respectively, and the oil suction port 14 on the oil inlet groove 16 communicates with the oil tank 13 . The oil outlets 5 and 12 are respectively connected to the oil outlet 6 through the check valve oil outlets 7 and 15, and the oil outlet 6 communicates with the pressure oil port 1. The oil inlet groove 16 and the oil outlet groove 6 are not communicated with each other, and each constitutes an independent passage. The rotor 4 is in the shape of an "equilateral triangle", and each side has a certain outwardly protruding arc. The center of the rotor 4 is equipped with an inner ring gear 9 that can mesh with a sun gear 8 mounted on the power input shaft.

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 central gear 8 on the input shaft rotates clockwise, the central ring gear 9 of the triangular rotor 4 revolves around the central gear 8 of the input shaft, and at the same time, the triangular rotor 4 itself rotates around its center. When the triangular rotor 4 rotates clockwise, the inner ring gear 9 centered on the center of the triangular rotor 4 meshes with the central gear 8 centered on the center of the input shaft, and the ratio of the number of teeth of the inner ring gear 9 to the central gear 8 is 3:2 . The above-mentioned kinematic relationship makes the motion locus of the vertices of the triangular rotor 4 (that is, the shape of the inner cavity of the stator) resemble an "8" shape. The triangular rotor 4 divides the inner cavity of the stator 3 into three independent, closed spaces with variable volumes. The volumes of the three spaces change continuously with the movement of the triangular rotor 4, thereby respectively completing the process of oil absorption and oil pressure. The triangular rotor 4 rotates once, the volume space corresponding to each side absorbs oil and presses oil twice, and the hydraulic pump as a whole absorbs oil and presses oil six times.

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 sides 18, 19, 20 of the triangular rotor 4.

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 triangular rotor 4 turns to the position shown in FIG. 1 , the volume space corresponding to the side 18 reaches the maximum, and the oil suction reaches saturation, and the oil pressure process is about to begin. As the triangular rotor 4 continues to rotate clockwise, the volume space corresponding to the side 18 gradually decreases, the one-way valve 17 is closed, and the one-way valve 7 is opened to start oil pressure, so that the hydraulic oil flows out from the oil pressure port 1 through the oil outlet groove 6; The volume space corresponding to the side 19 becomes larger, the one-way valve 10 is opened, and the hydraulic oil is sucked into the volume chamber by the oil cylinder 13 through the oil suction port 14 and the oil inlet groove 16; the volume space corresponding to the side 20 becomes smaller, the one-way valve 15 is opened, and the hydraulic oil Discharged from oil pressure port 1.

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 triangular rotor 4 turns to the position shown in Figure 2, the volume space corresponding to the side 18 becomes the minimum, and the oil pressure ends. With the clockwise rotation of the rotor, the volume space corresponding to the side 18 gradually becomes larger, and the one-way valve 7 is closed, the one-way valve 10 is opened, and the volume space starts to absorb oil; the space corresponding to the side 19 gradually becomes smaller, the one-way valve 15 is opened, and the corresponding volume space starts to press oil; the volume space corresponding to the side 20 becomes larger, and continues to absorb oil.

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 triangular rotor 4 turns to the position shown in FIG. 3 , the volume space corresponding to side 18 completes the oil suction and starts to press oil; the volume space corresponding to side 19 continues to increase and continues to absorb oil. The volume space corresponding to the side 20 continues to shrink, and the oil is continued to be pressed.

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 triangular rotor 4 turns to the position in Fig. 4, the oil pressure in the volume space corresponding to side 18 is completed, and oil suction begins; the volume space corresponding to side 19 continues to decrease, and oil pressure continues; the volume space corresponding to side 18 continues to increase , continue to absorb oil.

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 triangular rotor 4 change continuously with the clockwise rotation of the triangular rotor 4 , so that the processes of oil absorption and oil pressure are respectively completed successively. The triangular rotor 4 rotates once, the volume space corresponding to each side absorbs oil and presses oil twice, and the hydraulic pump as a whole absorbs oil and presses oil six times.

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 triangular rotor 4 rotates, its three vertices are always in good contact with the inner cavity of the stator 3, 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.

Claims (3)

1, a kind of triangular rotor hydraulic pump, comprise stator (3) and be arranged on the rotor (4) of stator (3) inner chamber, stator (3) is provided with the filler opening (2 with its intracavity inter-connection, 11) and oil outlet (5,12), filler opening (2,11) and oil outlet (5,12) respectively by oil-feed tank (16) with go out oil groove (6) and inlet port (13) and press hydraulic fluid port (1) to be connected, it is characterized in that: the inner chamber of said stator (3) is the surplus pendulum curvilinear plane of the figure of eight, said rotor (4) is equilateral triangle, and also is provided with the ring gear (9) that is meshed with central gear (8) on the power input shaft at the center of rotor (4).
2, triangular rotor hydraulic pump according to claim 1 is characterized in that: three limits (18,19,20) of said rotor (4) are export-oriented outstanding arc, and are respectively arranged with oil sealing on three limits (18,19,20) of rotor (4).
3, triangular rotor hydraulic pump according to claim 1 is characterized in that: said filler opening (2,11) and oil outlet (5,12) respectively by filler opening one-way valve (17,10) and oil outlet one-way valve (7,15) with oil-feed tank (16) with go out oil groove (6) and be connected.
CNU2007203113882U 2007-12-24 2007-12-24 Triangular rotor hydraulic pump Expired - Fee Related CN201152256Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007203113882U CN201152256Y (en) 2007-12-24 2007-12-24 Triangular rotor hydraulic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007203113882U CN201152256Y (en) 2007-12-24 2007-12-24 Triangular rotor hydraulic pump

Publications (1)

Publication Number Publication Date
CN201152256Y true CN201152256Y (en) 2008-11-19

Family

ID=40127934

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007203113882U Expired - Fee Related CN201152256Y (en) 2007-12-24 2007-12-24 Triangular rotor hydraulic pump

Country Status (1)

Country Link
CN (1) CN201152256Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN1851271A (en) Triangular rotor hydraulic pump
CN105715540B (en) Squash type eccentric rotor water pump and its application method
CN201152256Y (en) Triangular rotor hydraulic pump
CN102705227A (en) Multi-tooth difference internal gear pump
CN206234110U (en) A kind of transfiguration water pump of the formula rotor that dangled based on triangle
CN107842502A (en) A kind of novel rotary vane type vacuum pump
CN102155407A (en) Single-cylinder dual-function rotary-type compressor
CN213627990U (en) Combined internal gear pump of pin vane pump
CN201209552Y (en) Low flow pulsation internal gear pump
CN209053779U (en) A kind of triangle rotor type hydraulic pump motor
CN110500270B (en) Bidirectional high-speed miniature plunger pump with inserted oil port
CN100487245C (en) Fluid conveying machine employing elliptic rotation and compression principle
CN112879283B (en) Triangular rotor pump
CN214424691U (en) Triangular rotor pump
CN205937099U (en) Blade slip rotation type driven pump
CN101265898A (en) Planet cyclic gear train type polygonal rotor pump
CN110307079A (en) Energy conversion device based on fluid displacement variation
CN204610274U (en) A kind of abreast-type synchronous revolving mixing pump
CN2791259Y (en) Triangular piston rotor machine
CN109000141A (en) A kind of rotor-type oil pump can be reduced abrasion
CN207750229U (en) A kind of two-way Swing line oil pump
CN211009067U (en) Double-blade impeller and rotor pump thereof
CN204805093U (en) Air compressor
CN101846072B (en) Egg shape conical gear pump
CN201206544Y (en) Polygon rotor pump of planet epicyclic train

Legal Events

Date Code Title Description
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