WO2011017817A1

WO2011017817A1 - Oldham pump

Info

Publication number: WO2011017817A1
Application number: PCT/CN2009/000906
Authority: WO
Inventors: 杨进煌
Original assignee: Yang Genehuang
Priority date: 2009-08-10
Filing date: 2009-08-10
Publication date: 2011-02-17

Abstract

An Oldham pump includes a pump body, a first rotor, a second rotor, a first piston and a second piston, a first pivot hole and a second pivot hole are provided inside the pump body, the axes of the first and second pivot holes are symmetrical and parallel to each other with respect to the axis of the pump body, a first flow passage and a second flow passage are respectively provided on two sides of the pump body, the axes of the first and second flow passages are perpendicular to the axes of the first and second pivot holes, the first and second flow passages communicate with the external of the pump body so as to connect with fluid feed pipes. A third flow passage communicated with the first flow passage and the pivot holes and a fourth flow passage communicated with the second flow passage and the pivot holes are provided inside the pump body, and fluid enters and flows out of the pump body through the first and second flow passages. The first rotor is axially pivoted in the first pivot hole, the driving shaft of the first rotor axially extends out of the pump body, the second rotor is axially pivoted in the second pivot hole, and the first and second rotors abuts against each other axially. A first slide passage radially provided in the first rotor is axially perpendicular to a second slide passage radially provided in the second rotor, and the first and second slide passages are adjacent to each other. The first piston and the second piston have a long rod shape and are axially perpendicular to each other and fixedly spliced, the first piston is axially pivoted in the first slide passage, and the second piston is axially pivoted in the second slide passage, the axial length of the first and second pistons is shorter than the first and second slide passages, respectively. The rotation of the first rotor drives the first and second pistons to axially slide to-and-fro along the first and second slide passages, respectively, and the fluid enters and flows out of the pump body through each flow passage.

Description

Ou Dan pump technology

This invention relates to fluid transfer devices, and more particularly to an Ou Dan type pump. Background technique

The pumping structure for pumping a transport fluid in the prior art can be generally classified into a gear type, a piston reciprocating pump, a centrifugal type or the like. Among them, gear rotary pump and piston reciprocating pump, two types of pumps, due to their simple structure, are often used in the case of pumping liquid with a small pump. Among them, the gear pump is affected by the tightness of the gear meshing, and the pumping efficiency is not good, which can not meet the pumping demand of higher pressure. For the case where high pressure pumping liquid is required, the piston reciprocating pump is often used. . The operation of the reciprocating pump of the piston is mainly achieved by linearly reciprocating the piston in the cylinder and matching the arrangement of the inlet and outlet valves to achieve the purpose of pumping the fluid. However, the piston reciprocates in the cylinder, and the friction between the piston and the cylinder wall is formed, so that the function conversion function of the motor such as the motor to drive the pumping operation is not good, and the piston repeatedly performs the movement toward the cylinder end and rapidly decelerates. The action of reaching the end of the stroke and then accelerating the movement to the other end of the cylinder. The reverse acceleration operation of the piston after the emergency stop makes the operation of the reciprocating piston pump easy to generate pulse vibration. Pieces of fatigue.

Moreover, the reciprocating pump needs to be fitted with a one-way check valve at the pipeline of the fluid entering and leaving the cylinder, and the check valve controls the direction of the fluid entering and leaving the cylinder to achieve the pumping fluid. The purpose is that the composition is more complicated, and it can only pump the fluid from the source end to the destination end in one direction, and can not choose to change the direction of pumping, which forms a limit in practical application; if it is necessary to change the direction of fluid transmission, it needs The inflow pipe and the outflow pipe which are respectively connected to the two one-way check valves are re-matched, or the fluid inlet and outlet pipes which are matched with the check valves are mutually exchanged, and the pipe or the check valve is disposed. The change is not convenient, and when re-mating, if the adhesion is slightly Inadvertently, it is easy to cause problems in leakage prevention and leakage, which affects the pumping efficiency. Therefore, the existing fluid pump has further improvement in ease of use. Summary of the invention

In order to overcome the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an ouland type pump which is swayed by two rotors which are axially parallel to each other and whose two axes are not in the same straight line respectively. The pistons, and the pistons are axially perpendicularly connected to each other, so that the pistons reciprocate, thereby changing the volume of the pump internal chamber, thereby pumping and pumping fluid into and out of the pump, thereby improving fluid pumping smoothly. degree.

In order to solve the above technical problem, the technical solution of the present invention is:

An Ou Dan pump includes a pump body, a first rotor, a first piston, a second piston, and a first rotating spear. The first pivot hole and the second pivot hole are defined in the body, and the pivot holes are respectively The axis of the body is symmetrical and parallel to each other, the first flow channel is opened on one side of the body, and the second flow channel is opened on the other side, and the axis of the first and second flow channels is directed to the first and second pivot axes. Vertically, the first and second flow passages are respectively connected to the outside, and respectively, the fluid conveying pipelines are respectively connected to the first and second flow passages, and the third flow passage and the fourth flow passage are formed inside the main body, the third flow passage and the The first flow channel is in communication with the pivot holes, the fourth flow channel is in communication with the second flow channel and the pivot holes, and the fluid enters and exits the body through the first and second flow paths;

The first rotor shaft is pivoted to the first pivot hole, the first rotor axially protruding drive shaft extends outside the body, the power device rotates the first rotor to rotate, and the second rotor shaft pivots to the second a first hole, and the first and second rotors are axially abutting each other, the first rotor radially opening a first slide, the second rotor radially opening a second slide, the first slide and the first The two slides are axially perpendicular to each other, and the first and second slides are adjacent to each other, and the pistons are respectively elongated rods, and the first and second pistons are axially perpendicular to each other and are fixedly connected to each other, the first piston The shaft is pivoted to the first slide, the second piston shaft is pivoted to the second slide, and the axial lengths of the first and second pistons are respectively shorter than The slides are driven to reciprocally slide along the respective slides according to the rotation of the first rotor, and the fluid enters and exits the body through the flow passages.

The pump body is composed of a first cover body, a base and a second cover body string.

The owing type pump further includes a plurality of bolts, wherein the bolt shaft passes through the first cover body, the base is screwed to the second cover body, and the first cover body and the base are assembled And the second cover body constitutes the pump body.

The first pivot hole is adjacent to the first cover body, the second pivot hole is adjacent to the second cover body, and the pivot hole axes are symmetric with each other according to the axis of the base toward the axis of each cover body. And parallel.

The drive shaft pivots through the first cover and extends to the outside, and the power device rotates the first rotor to rotate.

The second rotor axially projecting pivot axis pivots to the second cover to position the second rotor. The pivot pivots with the second cover body.

The drive shaft is pivoted to the body by a bearing.

The drive shaft shaft is provided with a shaft seal.

Compared with the prior art, the beneficial effects of the present invention may be:

The invention relates to an Ou Dan pump which pulsates two activities by two rotors which are axially parallel to each other and whose two axes are not in the same straight line, and the pistons are axially perpendicularly connected to each other, according to the pistons reciprocating The action, in turn, causes a change in the volume of the internal chamber of the pump, thereby pumping and pumping fluid into and out of the pump, thereby improving the smoothness of fluid pumping.

The invention only needs to change the rotation direction of the first rotor, and the pumping direction of the fluid can be easily changed. The first and second flow passages can respectively be used as the fluid suction passage or the fluid delivery passage, and the pump and the external need not be pumped. The fluid delivery line is re-matured for improved ease of use. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is an exploded perspective view of a preferred embodiment of the present invention,

Figure 3 is a schematic axial cross-sectional view of a preferred embodiment of the present invention.

Figure 4 is a cross-sectional view taken along line 4-4 of Figure 3.

Figure 5 is a cross-sectional view taken along line 5-5 of Figure 4.

Figure 6 is a cross-sectional view taken along line 6-6 of Figure 4. Figure 7 is a first schematic view showing the first piston operating state in accordance with a preferred embodiment of the present invention. Figure 8 is a second schematic view of the first piston operating state in accordance with a preferred embodiment of the present invention. Figure 9 is a third schematic view of the first piston operating state in accordance with a preferred embodiment of the present invention. Figure 10 is a first schematic view showing the second piston action of the preferred embodiment of the present invention, and Figure 11 is a second schematic view showing the second piston operating state of the preferred embodiment of the present invention. Figure 12 is a preferred embodiment of the present invention. The third schematic diagram of the second piston operating state, [main component symbol description]

10-first cover

20-base 21-first pivot hole 22-second pivot hole

23 - First flow path 24 - Second flow path 25 - Third flow path

26-fourth flow channel

30-second cover

40 - first rotor 41 - drive shaft 42 - first slide

43 - bearing 44 - shaft seal

50 - first piston 60 - second piston

70-second rotor 71-pivot 72 - second slide 73 - bearing 80 - bolt DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

Referring to FIG. 1 and FIG. 2, a preferred embodiment of the Ou Dan pump of the present invention mainly includes a first cover 10, a base 20, a second cover 30, a first rotor 40, a first piston 50, and a second a piston 60 and a second rotor 70, wherein the base 20 is disposed between the first and second covers 10, 30, and a plurality of bolts 80 are axially passed through the first cover 10, the base 20 and the second The cover body 30 is screwed, and the first cover body 10, the base 20 and the second cover body 30 are arranged in series to form a pump body.

Referring to FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , the first pivot hole 21 and the second pivot hole 22 are defined in the base 20 , and the first pivot hole 21 is adjacent to the first cover 10 . The second pivot hole 22 is adjacent to the second cover body 30, and the pivot centers 21 and 22 are symmetrically and parallel with each other according to the axis of the base 20 pointing to the cover bodies 10 and 30. The base 20 is The first flow path 23 is opened on the side, and the second flow path 24 is opened on the other side. The first and second flow paths 23 and 24 are perpendicular to the axis of the base 20 and the bases 10 and 30, and the first The axial directions of the first and second flow passages 23, 24 are perpendicular to the axial centers of the first and second pivot holes 21, 22, and the first and second flow passages 23, 24 are respectively communicated with the outside, respectively, for respectively engaging the fluid delivery conduits. First and second flow passages 23 and 24, a third flow passage 25 and a fourth flow passage 26 are formed inside the base 20, and the third flow passage 25 communicates with the first flow passage 23 and the pivot holes 21 and 22, The fourth flow passage 26 communicates with the second flow passage 24 and the respective pivot holes 21, 22, and the fluid is introduced into and out of the base through the first and second flow passages 23, 24. 20.

As shown in FIG. 1 to FIG. 6, the first rotor 40 is pivoted to the first pivot hole? 1. The first rotor 40 axially projecting drive shaft 41 pivots through the first cover body 10 to extend outside, so that a power device (not shown) such as a motor or an engine can be used to tilt the drive shaft 41. The second rotor 70 is pivoted to the second pivot hole 22, and the second rotor 70 axially protrudes from the pivot shaft 71 to the second cover 30, thereby positioning the second rotor a rotor 70, and the first and second rotors 40, 70 are axially abutting each other, and the first rotor 40 opens a first slide 42 along a radial direction thereof. The second rotor 70 defines a second slide 72 along the radial direction thereof. The first slide 42 and the second slide 72 are axially perpendicular to each other, and the first and second slides 42 and 72 are adjacent to each other. The pistons 50 and 60 are respectively elongated rods. The first and second pistons 50 and 60 are axially perpendicular to each other and are fixedly connected to each other. The first piston 50 is pivoted to the first slide 42 and the second piston 60 is axially The first and second pistons 50 and 60 are axially shorter than the respective slides 42 and 72. When the first rotor 40 is rotated, the pistons 50 and 60 are respectively tilted. The reciprocating sliding movement is performed along the respective slides 42 and 72, and the second rotor 70 is rotated by the second piston 70, and the fluid is introduced into and out of the base via the respective flow passages 23, 24, 25, and 26. Seat 20, pumping fluid.

Moreover, the drive shaft 41 is pivoted to the first cover 10 by a bearing 43. The pivot 70 is also pivoted by the bearing 73 and the second cover 30 to improve the smoothness of rotation of the rotors 40 and 70; The drive shaft 41 is further axially shafted 44 to prevent fluid leakage.

When the power device such as a motor or an engine shakes the first rotor 40 to rotate, the first rotor 40 rotates the first piston 50 to rotate, because the first piston 50 and the second piston 60 are connected to each other, the first piston Rotation of 50 causes the second piston 60 to rotate, and rotation of the second piston 60 causes the second rotor 70 to rotate. Moreover, since the first and second rotors 40, 70 are axially parallel to each other, and the first and second rotors 40, 70 are axially constrained by the first and second covers 10, 30, respectively, The two rotors 40, 70 rotate, and the first piston 50 rotates while reciprocating along the axial direction of the first slide 42. The second rotor 70 rotates while also following the axis of the second slide 72. In the other hand, the first and second rotors 40, 70 and the first and second pistons 50, 60 are operated relative to each other in an operation mode of an Oldham Coupling.

Referring to FIG. 5, FIG. 7, FIG. 8 and FIG. 9, when the first rotor 40 rotates in the clockwise direction of the drawing, the first piston 50 reciprocates axially along the first slide 42. The first slide 42 forms a change in the volume of the space at both ends of the first piston 50, so that the fluid flows from the third flow passage 25 into the first slide 42 and along with the first rotor 40 rotation, The fluid flowing into the first slide 42 is pushed and pushed by the first piston 50 to the fourth flow passage 26, so that the external fluid can be sucked into the pump through the first flow passage 23, and by the The second flow passage 24 pushes the fluid out to achieve the effect of pumping the fluid.

Referring to FIG. 6, FIG. 10, FIG. 11 and FIG. 12, when the second rotor 70 rotates clockwise in the drawing, the second piston 60 reciprocates axially along the second slide 72. The second slide 72 forms a change in the volume of the space at both ends of the second piston 60, and also causes the fluid to flow from the third flow passage 25 into the second slide 72, and flows in with the rotation of the second rotor 70. The fluid of the second slide 72 is pushed and pushed by the second piston 60 to the fourth flow passage 26, whereby the external fluid is sucked into the pump through the first flow passage 23, and the second flow passage 24 is taken by the second flow passage 24. The fluid is pushed out to achieve the effect of pumping fluid.

Moreover, since the first and second slides 42, 72 are axially perpendicular to each other, the first and second pistons 50, 60 are axially perpendicular to each other, and therefore, the present invention enables continuous and stable pumping of fluid.

In addition, the foregoing operating state is an example in which the power unit rotates the first rotor 40 in a clockwise direction of the drawing. When the power unit rotates the first rotor 40 to rotate in the counterclockwise direction of the drawing, The second flow passage 24 draws the external fluid into the pump, and pushes the fluid through the first flow passage 23 to achieve the effect of pumping the fluid. The present invention only needs to change the rotation direction of the first rotor 40. The pumping direction of the fluid can be easily changed, and the first and second flow passages 23, 24 can be respectively used as a fluid suction passage or a fluid delivery passage, and the pump is not required to be re-matted with the external fluid delivery conduit. Improve the convenience of use.

The above description is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. That is, equivalent changes and modifications made by the content of the patent application scope of the present invention should be within the technical scope of the present invention.

Claims

Rights request

An oudan pump comprising a pump body, a first rotor, a first piston, a second piston and a second rotor, characterized in that:

A first pivot hole and a second pivot hole are defined in the body, and the pivot holes are symmetrically and parallel with each other according to the axis of the body. The first flow channel is opened on one side of the body, and the second flow path is opened on the other side. The axes of the first and second flow paths are perpendicular to the axis of the first and second pivot holes, and the first and second flow paths are respectively connected to the outside, respectively, for respectively connecting the fluid delivery lines to the first and second flow paths. A third flow channel and a fourth flow channel are formed in the body, the third flow channel is in communication with the first flow channel and the pivot holes, and the fourth flow channel is in communication with the second flow channel and the pivot holes, the fluid Accessing the body through the first and second flow paths;

The first rotor shaft is pivoted to the first pivot hole, the first rotor axially protruding drive shaft extends outside the body, the power device rotates the first rotor to rotate, and the second rotor shaft pivots to the second a first hole, and the first and second rotors are axially abutting each other, the first rotor radially opening a first slide, the second rotor radially opening a second slide, the first slide and the first The two slides are axially perpendicular to each other, and the first and second slides are adjacent to each other, and the pistons are respectively elongated rods, and the first and second pistons are axially perpendicular to each other and are fixedly connected to each other, the first piston The first piston is pivoted to the second slide, the second piston shaft is pivoted to the second slide, and the first and second pistons are respectively shorter in axial length than the slides, and the first rotor is rotated to move the respective The pistons are reciprocally slidably moved along the respective slides, and the fluid enters and exits the body through the respective flow passages.

2. The oudan pump according to claim 1, wherein the pump body is composed of a first cover, a base and a second cover.

The owing type pump according to claim 2, further comprising a plurality of bolts, wherein the bolt shaft passes through the first cover body, the base is screwed to the second cover body, and the string is assembled The first cover, the base and the second cover constitute the pump body.

4. The oudan pump according to claim 2, wherein the first pivot hole and the first A second pivot hole is adjacent to the second cover body, and the pivot holes are symmetrically and parallel to each other according to the axis of the base toward the respective cover body.

5. The owan type pump according to claim 4, wherein the drive shaft pivots through the first cover to extend outside, and the power unit oscillates the first rotor to rotate.

6. The owan type pump according to claim 4, wherein the second rotor axially protrudes from the pivot shaft to the second cover to position the second rotor.

7. The owan type pump according to claim 6, wherein the pivot shaft is pivoted by the bearing and the second cover.

8. The owan type pump of claim 1 wherein the drive shaft is pivoted to the body by a bearing.

9. The owan type pump according to claim 1, wherein the drive shaft shaft is provided with a shaft seal.