CN1525070A - A rotary piston oil pump - Google Patents

A rotary piston oil pump Download PDF

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Publication number
CN1525070A
CN1525070A CNA031510671A CN03151067A CN1525070A CN 1525070 A CN1525070 A CN 1525070A CN A031510671 A CNA031510671 A CN A031510671A CN 03151067 A CN03151067 A CN 03151067A CN 1525070 A CN1525070 A CN 1525070A
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rotor
piston
connecting rod
oil
stator
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行 陈
陈行
陶国良
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

本发明公开了一种旋转活塞式油泵，包括：定子部件：定子的内孔为圆柱形，对称于轴线的定子两侧面中部分别开有进油腔、排油腔。转子部件：转子为圆柱形，转子侧面圆柱孔中装有活塞，活塞圆柱的侧面用活塞销与连杆一端相联，连杆另一端的连杆转轴绕一定点转动，定子的圆柱侧面或转子的圆柱侧面上装有密封环和槽或不装有密封环和槽，连杆的转动半径是转子转动半径的一半，连杆或转子与电机连接。在运行时活塞始终在旋转，便没有往复运动的惯性力，运行平稳，噪声小。且运行一周，自动完成进、排油，无须配油盘。活塞旋转一周，完成两个压力循环。相当于往复式柱塞泵的两个柱塞的作用。本发明工艺性能好，密封性能好，结构简单，整机效率高。

Figure 03151067

The invention discloses a rotary piston type oil pump, which comprises: a stator part: the inner hole of the stator is cylindrical, and an oil inlet cavity and an oil discharge cavity are respectively opened in the middle of both sides of the stator symmetrical to the axis. Rotor components: The rotor is cylindrical, and a piston is installed in the cylindrical hole on the side of the rotor. The side of the piston cylinder is connected with one end of the connecting rod with a piston pin, and the connecting rod shaft at the other end of the connecting rod rotates around a certain point. The cylindrical side of the stator or the rotor There are sealing rings and grooves on the side of the cylinder or no sealing rings and grooves, the rotating radius of the connecting rod is half of the rotating radius of the rotor, and the connecting rod or rotor is connected with the motor. The piston is always rotating during operation, so there is no inertial force of reciprocating motion, the operation is stable and the noise is small. And it runs for a week, automatically completes the oil inlet and outlet, without the need for an oil distribution plate. The piston rotates once to complete two pressure cycles. It is equivalent to the function of the two plungers of the reciprocating plunger pump. The invention has good process performance, good sealing performance, simple structure and high overall efficiency.

Figure 03151067

Description

一种旋转活塞式油泵A rotary piston oil pump

所属技术领域Technical field

本发明涉及油泵，尤其是涉及一种旋转活塞式油泵。The invention relates to an oil pump, in particular to a rotary piston type oil pump.

背景技术Background technique

现有的柱塞泵，柱塞均为往复运动式的，由于要克服往复运动的惯性力，故能耗大，运行不平衡，噪声大。而且还需要配油盘In the existing plunger pumps, the plungers are all reciprocating. Because the inertial force of the reciprocating motion needs to be overcome, the energy consumption is large, the operation is unbalanced, and the noise is large. And also need oil distribution plate

发明内容Contents of the invention

本发明的目的是给出一种旋转活塞式油泵。该泵在运行时活塞始终在旋转，运行一周，自动完成进、排油，无须配油盘。活塞旋转一周，完成两个压力循环。The object of the present invention is to provide a rotary piston oil pump. When the pump is running, the piston is always rotating, and it runs for one cycle, and automatically completes the oil inlet and discharge without the need for an oil distribution plate. The piston rotates once to complete two pressure cycles.

为了达到上述目的，本发明采用的技术方案是：In order to achieve the above object, the technical scheme adopted in the present invention is:

1)定子部件：定子的内孔为圆柱形，对称于轴线的定子两侧面中部分别开有进油腔、排油腔；1) Stator components: The inner hole of the stator is cylindrical, and the middle parts of both sides of the stator symmetrical to the axis are respectively provided with an oil inlet cavity and an oil discharge cavity;

2)转子部件：转子为圆柱形，转子侧面圆柱孔中装有活塞，活塞圆柱的侧面用活塞销与连杆一端相联，连杆另一端绕一定点转动，定子的圆柱侧面或转子的圆柱侧面上装有密封环和槽或不装有密封环和槽，连杆的转动半径是转子转动半径的一半，连杆另一端或转子与电机连接。2) Rotor components: The rotor is cylindrical, and a piston is installed in the cylindrical hole on the side of the rotor. The side of the piston cylinder is connected with one end of the connecting rod with a piston pin, and the other end of the connecting rod rotates around a certain point. The side is equipped with a sealing ring and a groove or is not equipped with a sealing ring and a groove, the rotating radius of the connecting rod is half of the rotating radius of the rotor, and the other end of the connecting rod or the rotor is connected with the motor.

本发明与背景技术相比，具有的有益的效果是：本发明的旋转活塞式油泵，在运行时活塞始终在旋转，只要设计合理，便没有往复运动的惯性力，运行平稳，噪声小。且运行一周，自动完成进、排油，无须配油盘。活塞旋转一周，完成两个压力循环。它相当于往复式柱塞泵的两个柱塞的作用。此外，本发明工艺性能好，密封性能好。故本发明不仅结构简单，而且整机效率高。Compared with the background technology, the present invention has beneficial effects: the piston of the rotary piston oil pump of the present invention is always rotating during operation. As long as the design is reasonable, there is no inertial force of reciprocating motion, and the operation is stable and the noise is small. And it runs for a week, automatically completes the oil inlet and outlet, without the need for an oil distribution plate. The piston rotates once to complete two pressure cycles. It is equivalent to the function of the two plungers of the reciprocating plunger pump. In addition, the invention has good process performance and good sealing performance. Therefore, the present invention is not only simple in structure, but also high in overall efficiency.

附图说明Description of drawings

下面结合附图和实施例对本发明作进一步说明。The present invention will be further described below in conjunction with drawings and embodiments.

图1是本发明的结构示意图；Fig. 1 is a structural representation of the present invention;

图2是转子与活塞装配示意图；Figure 2 is a schematic diagram of the assembly of the rotor and the piston;

图3是转子、连杆与活塞销装配示意图；Figure 3 is a schematic diagram of the assembly of the rotor, connecting rod and piston pin;

图4是本发明的运行工作原理示意图。Fig. 4 is a schematic diagram of the operating principle of the present invention.

图中：1定子，2转子，3活塞，4活塞销，5连杆一端，6连杆另一端，JJ’进油腔，PP’排油腔。In the figure: 1 stator, 2 rotor, 3 piston, 4 piston pin, 5 connecting rod at one end, 6 connecting rod at the other end, JJ' oil inlet chamber, PP' oil discharge chamber.

具体实施方式Detailed ways

如图1、图2、图3所示，本发明包括：As shown in Fig. 1, Fig. 2, Fig. 3, the present invention comprises:

1)定子部件：定子1的内孔为圆柱形，对称于轴线的定子两侧面中部分别开有进油腔j、j’、排油腔p、p’；1) Stator components: The inner hole of the stator 1 is cylindrical, and the middle parts of both sides of the stator symmetrical to the axis are respectively opened with oil inlet chambers j, j', and oil discharge chambers p, p';

2)转子部件：转子2为圆柱形，转子2侧面圆柱孔中装有活塞3，活塞3圆柱的侧面用活塞销4与连杆一端5相联，连杆另一端6绕一定点转动，定子1的圆柱侧面或转子2的圆柱侧面上装有密封环和槽或不装有密封环和槽，连杆的转动半径o1o2是转子2转动半径o2o的一半，连杆另一端6或转子2与电机连接。2) Rotor components: the rotor 2 is cylindrical, and the piston 3 is installed in the cylindrical hole on the side of the rotor 2. The side of the cylinder of the piston 3 is connected with the end 5 of the connecting rod by the piston pin 4, and the other end 6 of the connecting rod rotates around a certain point. The stator The cylindrical side of 1 or the cylindrical side of rotor 2 is equipped with sealing ring and groove or not equipped with sealing ring and groove, the rotating radius o 1 o 2 of the connecting rod is half of the rotating radius o 2 o of rotor 2, and the other end of the connecting rod 6 Or the rotor 2 is connected with the motor.

所说的进油腔j、j’和排油腔p、p’为对称布置或或不对称布置，或开度相等，或开度不相等。Said oil inlet chambers j, j' and oil discharge chambers p, p' are arranged symmetrically or asymmetrically, or have equal or unequal openings.

本发明的运行工作原理如下：电机驱动连杆另一端6转动，连杆一端5通过活塞销4带动活塞3运动，活塞3又带动转子2旋转。当转子2处于进油开始位置(图4a)时，油从进油腔JJ’进入油室S。当转子2旋转时，油继续从进油腔JJ’进入油室S(图4b)。当转子2旋转180度时，进油终了(图4c)，接着便开始输出压力油。当转子2继续旋转时，继续输出压力油(图4d)，直到转子2旋转360度，达到P点(图4e)，排油结束。这是一个循环，接下去便是第二个循环。如或排此周而复始，连续工作。由于连杆一端5、连杆一端6、活塞3和转子2的联动，在整个工作过程中，活塞3始终处于旋转状态。当转子2油室S一端进油(油)时，另一端Q同时排油(或进油)(图4a)，反之依然。就是说，本发明的一个活塞实际上相当于往复式两个柱塞的作用。本发明进、排油完全由转子2和活塞的位置所确定。定子的JJ’段为进油，PP’段为排油，如图1所示。当转子2旋转一周时，进、排油过程自动完成，因此不再需要配油。The operating principle of the present invention is as follows: the motor drives the other end 6 of the connecting rod to rotate, the one end 5 of the connecting rod drives the piston 3 to move through the piston pin 4, and the piston 3 drives the rotor 2 to rotate. When the rotor 2 is at the oil inlet start position (Fig. 4a), the oil enters the oil chamber S from the oil inlet chamber JJ'. When the rotor 2 rotates, the oil continues to enter the oil chamber S from the oil inlet chamber JJ' (Fig. 4b). When the rotor 2 rotates 180 degrees, the oil inlet ends (Fig. 4c), and then the pressure oil starts to output. When the rotor 2 continues to rotate, it continues to output pressure oil (Figure 4d), until the rotor 2 rotates 360 degrees, reaches point P (Figure 4e), and the oil discharge ends. This is a cycle, followed by a second cycle. Such as or arrange this cycle again and again, continuous work. Due to the linkage between one end 5 of the connecting rod, one end 6 of the connecting rod, the piston 3 and the rotor 2, the piston 3 is always in a rotating state during the whole working process. When one end of the oil chamber S of the rotor 2 enters oil (oil), the other end Q discharges oil (or enters oil) at the same time (Figure 4a), and vice versa. That is to say, one piston of the present invention is actually equivalent to the effect of two reciprocating plungers. The present invention enters, discharges oil and is determined by the position of rotor 2 and piston completely. The JJ' section of the stator is oil inlet, and the PP' section is oil discharge, as shown in Figure 1. When the rotor 2 rotates one revolution, the process of oil intake and discharge is automatically completed, so oil distribution is no longer required.

Claims (2)

1、一种旋转活塞式油泵，其特征在于它包括：1. A rotary piston oil pump, characterized in that it comprises: 1)定子部件：定子(1)的内孔为圆柱形，对称于轴线的定子两侧面中部分别开有进油腔(j、j’)、排油腔(p、p’)；1) Stator components: the inner hole of the stator (1) is cylindrical, and the middle parts of both sides of the stator symmetrical to the axis are respectively opened with oil inlet chambers (j, j') and oil discharge chambers (p, p'); 2)转子部件：转子(2)为圆柱形，转子(2)侧面圆柱孔中装有活塞(3)，活塞(3)圆柱的侧面用活塞销(4)与连杆一端(5)相联，连杆另一端(6)绕一定点转动，定子(1)的圆柱侧面或转子(2)的圆柱侧面上装有密封环和槽或不装有密封环和槽，连杆的转动半径(o1o2)是转子(2)转动半径(o2o)的一半，连杆另一端(6)或转子(2)与电机连接。2) Rotor part: the rotor (2) is cylindrical, the piston (3) is installed in the cylindrical hole on the side of the rotor (2), and the side of the cylinder of the piston (3) is connected with the end of the connecting rod (5) by a piston pin (4) , the other end of the connecting rod (6) rotates around a certain point, the cylindrical side of the stator (1) or the cylindrical side of the rotor (2) is equipped with a sealing ring and a groove or is not equipped with a sealing ring and a groove, the radius of rotation of the connecting rod (o 1 o 2 ) is half of the rotation radius (o 2 o) of the rotor (2), and the other end of the connecting rod (6) or the rotor (2) is connected with the motor. 2、根据权利要求1所述的一种旋转活塞式油泵，其特征在于：所说的进油腔(j、j’)和排油腔(p、p’)为对称布置或或不对称布置，或开度相等，或开度不相等。2. A rotary piston oil pump according to claim 1, characterized in that: said oil inlet chambers (j, j') and oil discharge chambers (p, p') are arranged symmetrically or asymmetrically , or the openings are equal, or the openings are not equal.
CNA031510671A 2003-09-16 2003-09-16 A rotary piston oil pump Pending CN1525070A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101793346A (en) * 2010-04-23 2010-08-04 周一平 Rotary quantitative oil supply device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101793346A (en) * 2010-04-23 2010-08-04 周一平 Rotary quantitative oil supply device
CN101793346B (en) * 2010-04-23 2012-04-11 周一平 Rotary quantitative oil supply device

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