Composite spherical pump

Abstract

The utility model provides a composite spherical pump which comprises a stator, a first spherical inner cavity and a second spherical inner cavity which are arranged up and down are arranged in the stator, and a first spherical rotor and a second spherical rotor are arranged in the first spherical inner cavity and the second spherical inner cavity respectively. The stator is provided with a first liquid suction hole and a first liquid discharge hole which are communicated with the first spherical inner cavity, and is also provided with a second liquid suction hole and a second liquid discharge hole which are communicated with the second spherical inner cavity; a driving shaft of the first spherical rotor is connected with a second spherical rotor; a driving shaft of the second spherical rotor extends out of the lower part of the stator and is connected with a driving part; the composite spherical pump provided by the utility model is used for simultaneously sucking two media which are easy to react, the mixing proportion of the two media can be accurately controlled, the two media can be prevented from reacting due to internal leakage in different cavities, and meanwhile, the composite spherical pump is small and exquisite in structure and can save the installation space; on the other hand, the torque fluctuation of the driving motor is small and the torque peak is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of positive displacement pumps, in particular to a composite spherical pump. Background Art

[0002] At present, the suction of dual or multiple media generally adopts the method of simultaneous suction by multiple pumps. The disadvantages are that the system is large in size and power consumption, and the proportion of suction of different media cannot be accurately controlled. The spherical pump is a new three-dimensional variable volume mechanical structure. It is currently widely used in emergency fire fighting, oil monitoring, cleaning equipment, medical supplies, food machinery and other technical fields. It has the advantages of no inlet / exhaust valves, few moving parts, reliable sealing, strong self-priming ability, and strong anti-fouling ability. Multiple compressible studios can be formed in a spherical inner cavity to achieve multi-stage compression or suction of multiple media, which is suitable for various complex working environments. Existing spherical pumps can meet both single-medium and multi-medium operating conditions. However, when the operating condition is multi-medium, the existing dual-medium mixing spherical pump uses multiple different compression studios formed by two media in the same spherical cavity. For example, the Chinese patent with the patent name "A Multi-stage Spherical Compressor" and patent number ZL2024203432576 discloses that different compression studios are provided in the same spherical inner cavity. However, due to internal leakage of the spherical inner cavity, this method is prone to external leakage of the medium in different compression studios, which may cause different media to mix in the spherical inner cavity. If the two media are prone to react, then the existing multi-media mixing spherical pump is not applicable. In addition, the manufacturing of this multi-stage pump is relatively complex and the manufacturing cost is high. Summary of the Invention

[0003] The utility model provides a composite ball pump that solves the problems of existing single pumps that cannot simultaneously pump two or more different media, the media easily mixing and reacting due to leakage within the pump, and the inability to accurately control the mixing ratio of the two media. At the same time, a single pump replaces multiple pumps, solving the problems of large size, high energy consumption, and high noise of multiple pumps.

[0004] The technical solution of the utility model is:

[0005] A composite spherical pump includes a stator, wherein a first spherical inner cavity and a second spherical inner cavity are arranged vertically therein, a first spherical rotor and a second spherical rotor are respectively disposed in the first spherical inner cavity and the second spherical inner cavity, the spherical outer circumferences of the first spherical rotor and the second spherical rotor being adapted to the first spherical inner cavity and the second spherical inner cavity, respectively; the lower end of the drive shaft of the first spherical rotor passes through the lower axial hole of the first spherical inner cavity and the upper axial hole of the second spherical inner cavity in sequence and is connected to the second spherical rotor, and a seal is provided between the drive shaft of the first spherical rotor and the lower axial hole of the first spherical inner cavity and the upper axial hole of the second spherical inner cavity; the stator is provided with a first liquid suction hole and a first liquid discharge hole communicating with the first spherical inner cavity, and the stator is also provided with a second liquid suction hole and a liquid discharge hole communicating with the second spherical inner cavity;

[0006] The driving shaft of the second spherical rotor extends from the lower part of the stator and is connected to the driving component. When the driving component drives the second spherical rotor to rotate in the second spherical inner cavity, two second working chambers with alternating volumes are formed in the second spherical inner cavity. When the second working chamber needs to aspirate liquid, it is connected to the second liquid suction hole, and when it needs to discharge liquid, it is connected to the second liquid discharge hole. At the same time, the upper part of the second spherical rotor drives the first spherical rotor to rotate, forming two first working chambers with alternating volumes in the first spherical inner cavity. When the first working chamber needs to aspirate liquid, it is connected to the first liquid suction hole, and when it needs to discharge liquid, it is connected to the first liquid discharge hole.

[0007] The stator includes:

[0008] a first cylinder head, wherein a first hemispherical inner cavity I is formed in a lower portion of the first cylinder head;

[0009] A first cylinder body, wherein a first hemispherical inner cavity II is formed on the upper portion of the first cylinder body, wherein the first hemispherical inner cavity I and the first hemispherical inner cavity II cooperate to form a first spherical inner cavity; a first liquid suction hole and a first liquid discharge hole communicating with the first spherical inner cavity are formed on the first cylinder cover;

[0010] a second cylinder head, wherein a second hemispherical inner cavity I is formed in a lower portion of the second cylinder head;

[0011] A second cylinder body, wherein a second hemispherical inner cavity II is formed on the upper portion of the second cylinder body, and the second hemispherical inner cavity I and the second hemispherical inner cavity II cooperate to form a second spherical inner cavity; a second liquid suction hole and a second liquid discharge hole communicating with the second spherical inner cavity are provided on the second cylinder cover;

[0012] The first cylinder head, the first cylinder body, the second cylinder head and the second cylinder body are fixedly connected in sequence.

[0013] The first spherical rotor comprises:

[0014] Piston A has a spherical top surface, two side surfaces at a certain angle, and a piston pin seat A protruding from the lower portion of each side surface. The end surfaces of the piston pin seat A are spherical surfaces that adapt to the first spherical inner cavity. A protruding sliding shoe A is provided at the center of the spherical top surface of the piston A. The spherical top surface of the piston A adapts to the first spherical inner cavity to form a sealed dynamic fit.

[0015] Turntable A has a spherical bottom surface that fits in with the first spherical inner cavity to form a sealed dynamic fit. A turntable pin seat A is provided in the center of the top surface of turntable A, which fits with the piston pin seat A. The piston pin seat A and the turntable pin seat A form a cylindrical hinge connection. A turntable shaft A protrudes from the center of the spherical bottom surface at the lower end of turntable A. The central axis of the turntable shaft A passes through the center of the sphere of turntable A. A connector A is provided at the lower end of the turntable shaft A, which is connected to the second spherical rotor. The turntable shaft A serves as the drive shaft for the first spherical rotor.

[0016] The sliding shoe rotating sleeve A is placed in the rotating sleeve hole A provided on the first spherical inner cavity to form a rotating fit. A sliding groove A is provided at the lower end of the sliding shoe rotating sleeve A. The sliding shoe A at the end of the piston A is placed in the sliding groove A. The two parallel side surfaces of the sliding shoe A fit with the two side surfaces of the sliding groove A to form a sliding fit; the two parallel side surfaces of the sliding shoe A are symmetrically arranged on both sides of the axis of the sliding shoe rotating sleeve A and are parallel to the central axis of the cylindrical hinge; the central axis of the sliding shoe rotating sleeve A passes through the center of the first spherical inner cavity, and an angle is formed between the central axis of the turntable shaft A and the central axis of the sliding shoe rotating sleeve A; when the first spherical rotor rotates, the sliding shoe A slides back and forth in the sliding groove A, and two first working chambers with alternating volumes are formed between the upper end surface of the turntable A, the two side surfaces of the piston A and the inner spherical surface of the first spherical inner cavity.

[0017] The second spherical rotor comprises:

[0018] Piston B has a spherical top surface, two angled side surfaces, and piston pin seats B protruding from the lower portions of the two side surfaces. The end surfaces of piston pin seat B are spherical surfaces that mate with the second spherical inner cavity. The spherical top surface of piston B mates with the second spherical inner cavity to form a sealed dynamic fit. A connecting hole B is provided in the center of the spherical top surface of piston B, which mates with connector A. The central axis of connecting hole B passes through the center of the first spherical inner cavity.

[0019] Turntable B has a spherical bottom surface that fits in a sealed dynamic fit with the second spherical inner cavity. A turntable shaft B protrudes from the center of the spherical bottom surface of turntable B. The central axis of turntable shaft B passes through the center of the spherical surface of turntable B. A sliding shoe B is fixed to the lower end of turntable shaft B. A turntable pin seat B that fits with piston pin seat B is provided in the center of the top surface of turntable B. The piston pin seat B and turntable pin seat B form a cylindrical hinge connection.

[0020] The main shaft B has a groove B provided on its upper end surface, and a shoe B at the lower part of the turntable B is placed in the groove B, with the two parallel side surfaces of the shoe B fitting into the two side surfaces of the groove B to form a sliding fit; the two parallel side surfaces of the shoe B are symmetrically arranged on both sides of the axis of the turntable shaft B and parallel to the central axis of the cylindrical hinge; the main shaft B is the driving shaft of the second spherical rotor; the central axis of the main shaft B passes through the center of the second spherical inner cavity; the central axis of the main shaft B forms an angle with the central axis of the connecting hole B; when the second spherical rotor rotates, the shoe B slides back and forth in the groove B, forming two second working chambers with alternating volumes between the upper end surface of the turntable B, the two side surfaces of the piston B and the inner spherical surface of the second spherical inner cavity.

[0021] As another form, the second spherical rotor includes:

[0022] Piston C has a spherical top surface, two side surfaces at a certain angle, and a piston pin seat C protruding from the lower portion of the two side surfaces. The end surfaces of the piston pin seat C are spherical surfaces that adapt to the second spherical inner cavity. A protruding sliding shoe C is provided at the center of the spherical top surface of the piston C. The spherical top surface of the piston C adapts to the second spherical inner cavity to form a sealed dynamic fit.

[0023] The turntable C has a spherical bottom surface that fits in with the second spherical inner cavity to form a sealed dynamic fit. A turntable pin seat C is provided in the center of the top surface of the turntable C, which fits with the piston pin seat C. The piston pin seat C and the turntable pin seat C form a cylindrical hinge. A turntable shaft C protrudes from the center of the spherical bottom surface at the lower end of the turntable C. The central axis of the turntable shaft C passes through the center of the turntable C. The turntable shaft C serves as the drive shaft of the second spherical rotor.

[0024] The sliding shoe sleeve C is placed in the sleeve hole C provided on the second spherical inner cavity to form a rotating fit. A slide groove C is provided at the lower end of the sliding shoe sleeve C, and a connecting hole C adapted to the connector A is provided in the center of the top surface of the sliding shoe sleeve C. The sliding shoe C provided at the end of the piston C is placed in the slide groove C, and the two parallel side surfaces of the sliding shoe C fit with the two side surfaces of the slide groove C to form a sliding fit; the two parallel side surfaces of the sliding shoe C are symmetrically arranged on both sides of the axis of the turntable shaft C and are parallel to the central axis of the cylindrical hinge; the central axis of the sliding shoe sleeve C passes through the center of the piston C, and the central axis of the turntable shaft C forms an angle with the central axis of the sliding shoe sleeve C; when the second spherical rotor rotates, the sliding shoe C slides back and forth in the slide groove C, and two second working chambers with alternating volumes are formed between the upper end surface of the turntable C, the two side surfaces of the piston C and the inner spherical surface of the second spherical inner cavity.

[0025] As another form, the first spherical rotor includes:

[0026] Piston D, which has a spherical top surface, two side surfaces at a certain angle, and a piston pin seat D protruding from the lower portion of each side surface. The end surfaces of the piston pin seat D are spherical surfaces adapted to the first spherical inner cavity. The spherical top surface of the piston D is adapted to the first spherical inner cavity to form a sealed dynamic fit. A piston shaft D is provided in the center of the spherical top surface of the piston D, and the piston shaft D forms a rotational fit with a piston shaft hole D provided in the first spherical inner cavity.

[0027] The turntable D has a spherical bottom surface that fits in a sealed dynamic fit with the first spherical inner cavity. A turntable shaft D protrudes from the center of the spherical bottom surface of the turntable D. The central axis of the turntable shaft D passes through the center of the spherical surface of the turntable D. A sliding shoe D is fixed to the lower end of the turntable shaft D. A turntable pin seat D that fits with the piston pin seat D is provided at the center of the top surface of the turntable D. The piston pin seat D and the turntable pin seat D form a cylindrical hinge connection.

[0028] The main shaft D has a central axis passing through the center of the turntable D, and the central axis of the main shaft D forms an angle with the central axis of the piston shaft D; a slide groove D is provided on the upper end surface of the main shaft D, and a slipper D at the lower part of the turntable D is placed in the slide groove D, and the two parallel side surfaces of the slipper D fit with the two side surfaces of the slide groove D to form a sliding fit; the two parallel side surfaces of the slipper D are symmetrically arranged on both sides of the axis of the turntable shaft D and are parallel to the central axis of the cylindrical hinge; a connector D is provided at the lower end of the main shaft D, and the connector D is connected to the second spherical rotor. The main shaft D serves as the driving shaft of the first spherical rotor; when the first spherical rotor rotates, the slipper D slides back and forth in the slide groove D, forming two first working chambers with alternating volumes between the upper end surface of the turntable D, the two side surfaces of the piston D and the inner spherical surface of the first spherical inner cavity.

[0029] As another form, the second spherical rotor includes:

[0030] The piston E has a spherical top surface, two side surfaces at a certain angle, and a piston pin seat E protruding from the lower portion of the two side surfaces. The end surfaces of the piston pin seat E are spherical surfaces that adapt to the second spherical inner cavity. A protruding sliding shoe E is provided at the center of the spherical top surface of the piston E. The spherical top surface of the piston E adapts to the second spherical inner cavity to form a sealed dynamic fit.

[0031] The turntable E has a spherical bottom surface that fits in with the second spherical inner cavity to form a sealed dynamic fit. A turntable pin seat E is provided in the center of the top surface of the turntable E, which fits with the piston pin seat E. The piston pin seat E and the turntable pin seat E form a cylindrical hinge connection. A turntable shaft E protrudes from the center of the spherical bottom surface at the lower end of the turntable E. The central axis of the turntable shaft E passes through the center of the turntable E. The turntable shaft E serves as the drive shaft of the second spherical rotor.

[0032] The sliding shoe rotating sleeve E is placed in the rotating sleeve hole E provided on the second spherical inner cavity to form a rotational fit. A slide groove E is provided at the lower end of the sliding shoe rotating sleeve E, and a connecting hole E adapted to the connector D is provided in the center of the top surface of the sliding shoe rotating sleeve E. The sliding shoe E provided at the end of the piston E is placed in the slide groove E, and the two parallel side surfaces of the sliding shoe E fit with the two side surfaces of the slide groove E to form a sliding fit; the two parallel side surfaces of the sliding shoe E are symmetrically arranged on both sides of the axis of the turntable shaft E and are parallel to the central axis of the cylindrical hinge; the central axis of the sliding shoe rotating sleeve E passes through the center of the piston E, and an angle is formed between the central axis of the turntable shaft E and the central axis of the sliding shoe rotating sleeve E; when the second spherical rotor rotates, the sliding shoe E slides back and forth in the slide groove E, and two second working chambers with alternating volumes are formed between the upper end surface of the turntable E, the two side surfaces of the piston E and the inner spherical surface of the second spherical inner cavity.

[0033] As another form, the second spherical rotor includes:

[0034] Piston F has a spherical top surface, two side surfaces at a certain angle, and piston pin seats F protruding from the lower portions of the two side surfaces. The end surfaces of the piston pin seat F are spherical surfaces that adapt to the second spherical inner cavity. The spherical top surface of the piston F adapts to the second spherical inner cavity to form a sealed dynamic fit. A connecting hole F is provided in the center of the spherical top surface of the piston F, which adapts to the connector D. The axis of the connecting hole F passes through the center of the spherical top surface of the piston.

[0035] The turntable F has a spherical bottom surface that fits in a sealed dynamic fit with the second spherical inner cavity. A turntable shaft F protrudes from the center of the spherical bottom surface of the turntable F. The central axis of the turntable shaft F passes through the center of the spherical surface of the turntable F. A sliding shoe F is fixed to the lower end of the turntable shaft F. A turntable pin seat F that fits with the piston pin seat F is provided in the center of the top surface of the turntable F. The piston pin seat F and the turntable pin seat F form a cylindrical hinge connection.

[0036] The main shaft F has a central axis passing through the center of the turntable F. A slide groove F is provided on the upper end surface of the main shaft F. A slipper F at the lower portion of the turntable F is placed in the slide groove F. The two parallel side surfaces of the slipper F fit in a sliding fit with the two side surfaces of the slide groove F. The two parallel side surfaces of the slipper F are symmetrically arranged on both sides of the axis of the turntable shaft F and are parallel to the central axis of the cylindrical hinge. The main shaft F serves as the drive shaft of the second spherical rotor. The central axis of the main shaft F passes through the center of the first spherical inner cavity, and the central axis of the main shaft F forms an angle with the central axis of the connecting hole F. When the second spherical rotor rotates, the slipper F slides back and forth in the slide groove F, forming two second working chambers with alternating volumes between the upper end surface of the turntable F, the two side surfaces of the piston F, and the inner spherical surface of the second spherical inner cavity.

[0037] The initial phase angles of the first spherical rotor and the second spherical rotor differ by 90 degrees.

[0038] There are two sealing members, which are in opposite directions to prevent the medium in the first spherical inner cavity and the medium in the second spherical inner cavity from leaking into each other.

[0039] The stator is further provided with a third spherical inner cavity located at the lower portion of the second spherical inner cavity, a third spherical rotor being provided in the third spherical inner cavity, the spherical outer peripheral surface of the third spherical rotor being adapted to the third spherical inner cavity, the lower end of the drive shaft of the second spherical rotor sequentially passing through the axial hole in the lower portion of the second spherical inner cavity and the axial hole in the upper portion of the third spherical inner cavity to be connected to the third spherical rotor, the drive shaft of the third spherical rotor extending from the lower portion of the stator to be connected to the drive component; a seal is provided between the drive shaft of the second spherical rotor and the axial hole in the lower portion of the second spherical inner cavity and the axial hole in the upper portion of the third spherical inner cavity; the stator is further provided with a third liquid suction hole and a third liquid discharge hole communicating with the third spherical inner cavity.

[0040] Beneficial effects of the utility model:

[0041] 1. The utility model provides a composite spherical pump, comprising a first spherical inner cavity and a second spherical inner cavity. Different types of media flow into the first spherical inner cavity and the second spherical inner cavity respectively. The two media enter different working chambers and are separated by a seal so that the liquids in the two chambers do not mix, thereby avoiding reaction between the two media.

[0042] 2. The lower end of the driving shaft of the first spherical rotor is passed through the lower shaft hole of the first spherical inner cavity and the upper shaft hole of the second spherical inner cavity in sequence and connected to the second spherical rotor. Since the two rotors rotate synchronously, the mixing ratio of the two media can be accurately controlled.

[0043] 3. The composite spherical pump provided by the utility model is a single pump, replacing the original dual pumps with a single pump. It is compact and lightweight, greatly saving installation space. At the same time, a single drive device drives the two rotors in sequence, resulting in a simple structure, a small number of parts, low total power consumption, energy saving and noise reduction. The initial phase angles of the first and second spherical rotors are offset by 90 degrees, which improves the reliability of the transmission mechanism, stabilizes the torque changes of the drive motor, reduces the torque peak of the drive motor, reduces noise, optimizes the load conditions of the motor, and increases the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 Shown is a schematic diagram of a composite ball pump provided in Example 1 of the present utility model;

[0045] Figure 2 Shown Figure 1 Schematic diagram of the middle AA section;

[0046] Figure 3 Shown is a schematic structural diagram of the second cylinder head in Example 1;

[0047] Figure 4 Shown Figure 3 Schematic diagram of the middle BB section;

[0048] Figure 5 Shown Figure 3 Schematic diagram of the middle DD section;

[0049] Figure 6 Shown is a schematic structural diagram of the piston B in Example 1;

[0050] Figure 7 Shown is a schematic structural diagram of the turntable B in Example 1;

[0051] Figure 8 Shown is a schematic structural diagram of the main shaft B in Example 1;

[0052] Figure 9 Shown is a schematic structural diagram of the first cylinder head in Example 1;

[0053] Figure 10 Shown Figure 9 Schematic diagram of the middle EE section;

[0054] Figure 11 Shown Figure 9 Schematic diagram of the FF cross section;

[0055] Figure 12 Shown is a schematic structural diagram of the piston A in Example 1;

[0056] Figure 13 Shown is a schematic structural diagram of the turntable A in Example 1;

[0057] Figure 14 The figure shows the structure of the sliding shoe rotating sleeve A in Example 1;

[0058] Figure 15 Shown is a schematic structural diagram of the composite ball pump in Example 2;

[0059] Figure 16 Shown Figure 15 Schematic diagram of the middle HH section;

[0060] Figure 17 Shown is a schematic structural diagram of the first cylinder head in Example 2;

[0061] Figure 18 Shown Figure 17 Schematic diagram of the middle MM section;

[0062] Figure 19 Shown Figure 17 Schematic diagram of the middle NN section;

[0063] Figure 20The figure shows the structure of the sliding shoe rotating sleeve C in Example 2;

[0064] Figure 21 Shown is a schematic structural diagram of the composite ball pump in Example 3;

[0065] Figure 22 Shown is a schematic structural diagram of the piston D in Example 3;

[0066] Figure 23 Shown is a schematic structural diagram of the composite ball pump in Example 4;

[0067] Figure 24 Shown is a structural diagram of the center pin cylindrical hinge connection.

[0068] Description of reference numerals:

[0069] 1. First cylinder head; 101. First suction hole; 102. First discharge hole; 2. First cylinder body; 3. Second cylinder head; 301. Second suction hole; 302. Second discharge hole; 303. Second spherical cavity upper shaft hole; 4. Second cylinder body; 5. First spindle bracket; 6. Piston A; 601. Slipper A; 7. Turntable A; 701. Turntable shaft A; 702. Connector A; 8. Slipper swivel sleeve A; 801. Slide groove A; 9. Piston B; 901. Connecting hole B; 10. Turntable B; 101. Slipper B; 11. Spindle B; 11 01. Slide groove B; 12. Piston C; 13. Turntable C; 14. Slide shoe and swivel sleeve C; 1401. Slide groove C; 1402. Connecting hole C; 15. Piston D; 1501. Piston shaft D; 16. Turntable D; 17. Spindle D; 1701. Connector D; 18. Piston E; 19. Turntable E; 20. Slide shoe and swivel sleeve E; 21. Second spindle bracket; 22. Piston F; 23. Turntable F; 24. Spindle F; 25. Piston G; 26. Turntable G; 27. Center pin; 100. First working studio; 200. Second working studio. DETAILED DESCRIPTION

[0070] The following combination Figures 1 to 24 , the specific implementation methods of the present utility model are described in detail, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation methods.

[0071] Example 1:

[0072] The utility model embodiment 1 provides a composite ball pump, such as Figure 1 As shown, it is a schematic diagram of the composite ball pump in Example 1, as shown Figure 2 As shown, Figure 1Schematic diagram of the AA section. A composite spherical pump includes a stator, wherein the stator is provided with a first spherical inner cavity and a second spherical inner cavity arranged vertically therein, wherein a first spherical rotor and a second spherical rotor are respectively provided in the first spherical inner cavity and the second spherical inner cavity, and the spherical outer peripheral surfaces of the first spherical rotor and the second spherical rotor are respectively adapted to the first spherical inner cavity and the second spherical inner cavity; the lower end of the drive shaft of the first spherical rotor passes through the lower axial hole of the first spherical inner cavity and the upper axial hole of the second spherical inner cavity in sequence to connect to the second spherical rotor; a seal is provided between the drive shaft of the first spherical rotor and the lower axial hole of the first spherical inner cavity and the upper axial hole of the second spherical inner cavity; the stator is provided with a first suction hole and a first discharge hole communicating with the first spherical inner cavity, and also with a second suction hole and a discharge hole communicating with the second spherical inner cavity; the first spherical rotor and the second spherical rotor are both rotors of conventional spherical pumps.

[0073] It should be noted that the spherical pump belongs to the prior art. The specific structure of the spherical pump is disclosed in the patent with patent number 2019100648055 and patent name "Spherical Pump". The spherical pump in this patent is a single pump structure, and it is disclosed in paragraph 38 that "the cylinder body, the cylinder head and the first main shaft bracket are fixedly connected in sequence by screws to form a spherical pump casing with a spherical inner cavity, namely the spherical pump stator; the piston, the turntable and the main shaft are connected in sequence to form the spherical pump rotor". The patent discloses one of the specific structures of the "stator" and the "rotor". Therefore, the "stator" and the "rotor" belong to the prior art.

[0074] In this embodiment, if Figure 2 As shown, the stator includes a first cylinder head 1, a first cylinder body 2, a second cylinder head 3, a second cylinder body 4 and a first main shaft support 5 which are fixedly connected in sequence. Figure 9 The structure diagram of the first cylinder head 1 is shown as follows. Figure 10 Shown Figure 9 EE cross-section diagram, as shown in Figure 11 Shown Figure 9 FF cross-sectional diagram. A first hemispherical inner cavity I is opened at the lower part of the first cylinder head 1, and a first hemispherical inner cavity II is opened at the upper part of the first cylinder body 2, and the first hemispherical inner cavity I and the first hemispherical inner cavity II cooperate to form a first spherical inner cavity; Figure 3 The structure diagram of the second cylinder head 3 is shown as follows. Figure 4 Shown Figure 3 BB cross-section diagram, as shown in Figure 5 Shown Figure 3Schematic diagram of the middle DD cross-section. A second hemispherical inner cavity I is defined at the lower portion of the second cylinder head 3, and a second hemispherical inner cavity II is defined at the upper portion of the second cylinder body 4. The second hemispherical inner cavity I and the second hemispherical inner cavity II cooperate to form the second spherical inner cavity. A first spindle support 5 is fixed to the lower end of the second cylinder body 4. The drive shaft of the second spherical rotor extends from the lower portion of the first spindle support 5 and connects to the drive component. The lower end of the drive shaft of the first spherical rotor sequentially penetrates the lower axial hole of the first cylinder body 2 and the upper axial hole of the second cylinder head 3 to connect to the second spherical rotor. The upper axial hole of the second cylinder head 3 serves as the upper axial hole 303 of the second spherical inner cavity.

[0075] In this embodiment, if Figure 2 As shown, the first spherical rotor includes a piston A6, a rotating disk A7 and a sliding shoe rotating sleeve A8. Figure 12 Figure 2 is a schematic diagram of the structure of piston A. Piston A6 has a spherical top surface, two side surfaces at a certain angle, and a piston pin seat A protruding from the lower part of the two side surfaces. The end surfaces of the piston pin seat A are spherical surfaces that adapt to the first spherical inner cavity. A protruding sliding shoe A601 is provided in the center of the spherical top surface of piston A6. The spherical top surface of piston A6 adapts to the first spherical inner cavity and forms a sealed dynamic fit.

[0076] like Figure 13 The figure shows a schematic diagram of the structure of the turntable A7. The turntable A7 has a spherical bottom surface, which is adapted to the first spherical inner cavity to form a sealed dynamic fit; a turntable pin seat A adapted to the piston pin seat A is provided in the center of the top surface of the turntable A7, and the piston pin seat A and the turntable pin seat A form a cylindrical hinge; a turntable shaft A701 protrudes from the center of the spherical bottom surface at the lower end of the turntable A7, and the central axis of the turntable shaft A701 passes through the center of the sphere of the turntable A. A connector A702 is provided at the lower end of the turntable shaft A701, and the connector A702 is connected to the second spherical rotor.

[0077] like Figure 14 As shown, it is a schematic diagram of the structure of the sliding shoe rotating sleeve A8. Figure 2 As shown, the sliding shoe swivel sleeve A8 is placed in the swivel sleeve hole A provided on the first spherical inner cavity, and the sliding shoe swivel sleeve A8 and the swivel sleeve hole A form a rotational fit. A slide groove A801 ​​is provided at the lower end of the sliding shoe swivel sleeve A8, and the sliding shoe A601 fixed at the end of the piston A6 is placed in the slide groove A801. The two parallel side surfaces of the sliding shoe A601 fit with the two side surfaces of the slide groove A801 ​​to form a sliding fit; the two parallel side surfaces of the sliding shoe A601 are symmetrically arranged on both sides of the central axis of the sliding shoe swivel sleeve A8 and are parallel to the central axis of the cylindrical hinge; the central axis of the sliding shoe swivel sleeve A8 passes through the center of the first spherical inner cavity, and an angle is formed between the central axis of the turntable shaft A701 and the central axis of the sliding shoe swivel sleeve A8.

[0078] When the first spherical rotor rotates, the shoe A601 slides back and forth in the slide groove A801, forming two first working chambers with alternating volumes between the upper end surface of the turntable A7, the two side surfaces of the piston A6 and the inner spherical surface of the first spherical cavity.

[0079] In this embodiment, if Figure 2 As shown, the second spherical rotor includes a piston B9, a rotating disk B10 and a main shaft B11. Figure 6 The figure shows a schematic diagram of the structure of the piston B. The piston B9 has a spherical top surface, two side surfaces at a certain angle and a piston pin seat B protruding from the lower part of the two side surfaces. The two end surfaces of the piston pin seat B are spherical surfaces that are adapted to the second spherical inner cavity. The spherical top surface of the piston B9 is adapted to the second spherical inner cavity and forms a sealed dynamic fit. A connecting hole B901 that is adapted to the connecting head A702 is provided in the center of the spherical top surface of the piston B9. The central axis of the connecting hole B901 passes through the center of the second spherical inner cavity. In this embodiment, the connecting hole B901 is a connecting square hole, and the connecting head A702 is a square connecting head. The connection method of the square connecting head can avoid relative sliding between the piston B9 and the turntable A7 during coaxial rotation. The connecting hole B901 and the connecting head A702 can also be connected using other transmission shaft connection methods, such as a spline connecting head and a spline connecting hole, or a hexagonal connecting head and a hexagonal connecting hole.

[0080] like Figure 7 The figure shows the structure of the turntable B. The turntable B10 has a spherical bottom surface, which is adapted to the second spherical inner cavity to form a sealed dynamic fit. A turntable shaft B protrudes from the center of the spherical bottom surface of the turntable B10. The central axis of the turntable shaft B passes through the center of the spherical surface of the turntable B. A sliding shoe B101 is fixed to the lower end of the turntable shaft B. A turntable pin seat B adapted to the piston pin seat B is provided in the center of the top of the turntable B10. The piston pin seat B and the turntable pin seat B form a cylindrical hinge.

[0081] like Figure 8 The figure shows the structure of spindle B. A groove B1101 is located on the upper end surface of spindle B11. A shoe B101, located at the lower portion of turntable B10, slides within this groove, forming a sliding fit. Spindle B11 serves as the drive shaft for the second spherical rotor. The central axis of spindle B11 passes through the center of the second spherical cavity, forming an angle with the central axis of connecting hole B901. When the first spherical rotor rotates, shoe B101 reciprocates within groove B1101, forming two second working chambers with alternating volumes between the upper end surface of turntable B10, the lower end surface of piston B9, and the inner surface of the second spherical cavity.

[0082] It should be noted that, in this embodiment, the driving shaft of the first spherical rotor is the turntable shaft A, and the seal is a skeleton oil seal. There are three placement situations for the skeleton oil seal: when the number of seals is one, the seal is arranged between the turntable shaft A and the lower shaft hole of the first spherical inner cavity or between the turntable shaft A and the upper shaft hole of the second spherical inner cavity; when the number of seals is two, the seal is arranged both between the turntable shaft A and the lower shaft hole of the first spherical inner cavity and between the turntable shaft A and the upper shaft hole of the second spherical inner cavity, and the directions of the two skeleton oil seals are opposite to avoid mutual leakage of the medium in the first spherical inner cavity and the medium in the second spherical inner cavity.

[0083] At the same time, in this embodiment, a seal is also provided between the main shaft B11 and the first main shaft support 5 to prevent the medium in the first spherical cavity from leaking to the outside of the stator, and a bearing is also provided between the main shaft B11 and the first main shaft support 5.

[0084] In this embodiment, the first cylinder head 1 is provided with a first liquid suction hole 101 and a first liquid discharge hole 102 communicating with the first spherical inner cavity; the second cylinder head 3 is provided with a second liquid suction hole 301 and a second liquid discharge hole 302 communicating with the second spherical inner cavity; the driving shaft of the second spherical rotor is the main shaft B11, and the main shaft B11 extends from the lower part of the first main shaft bracket 5 and is connected to the driving component. When the driving component drives the second spherical rotor to rotate in the second spherical inner cavity, when the main shaft B11 rotates to drive the turntable B10 and the piston B9, the sliding shoe B101 slides back and forth in the slide groove B1101, and the piston B9 and the turntable B10 swing relative to each other. At the upper end of the turntable B10 Two second working chambers 200 with alternating volumes are formed between the two side surfaces of the piston B9 and the inner spherical surface of the second spherical inner cavity. When one of the second working chambers 200 needs to aspirate liquid, it is connected to the second liquid aspiration hole 301 provided on the second cylinder head 3. When the other second working chamber 200 needs to compress and discharge liquid, it is connected to the second liquid discharge hole 302 provided on the second cylinder head 3. When the main shaft B11 rotates one circle, the piston B9 also rotates one circle. The lower end of the turntable shaft B is fixed with a sliding shoe 101B which swings once in the sliding groove B1101 provided on the upper end surface of the main shaft B11. A complete liquid aspiration and compression and discharge process occurs in each of the two second working chambers 200.

[0085] When the second spherical rotor rotates, the turntable shaft A of the first spherical rotor is driven to rotate through the piston B9. When the turntable shaft A rotates and drives the turntable A7 and the piston A6, the slipper A601 slides back and forth in the slide groove A801, and the piston A6 and the turntable A7 swing relative to each other. Two first working chambers 100 with alternating volumes are formed between the upper end surface of the turntable A7, the two side surfaces of the piston A6 and the inner spherical surface of the first spherical inner cavity. When one of the first working chambers 100 needs to aspirate liquid, it is connected to the first liquid suction hole 101 provided on the first cylinder head 1. When the other first working chamber 100 needs to compress and discharge liquid, it is connected to the second liquid discharge hole 102 provided on the first cylinder head 1. When the turntable shaft A rotates one circle, the piston A6 also rotates one circle. The slipper A601 fixed to the lower end of the turntable shaft A swings once in the slide groove A provided at the lower end of the slipper rotating sleeve A. A complete liquid aspiration and compression and discharge process occurs in each of the two first working chambers 100.

[0086] Example 2:

[0087] The utility model embodiment 2 provides a composite ball pump, such as Figure 15 As shown, it is a schematic diagram of the structure of the composite ball pump in Example 2, as shown in FIG. Figure 16 As shown, Figure 15 The composite spherical pump provided in this embodiment includes a stator, which includes a first cylinder head 1, a first cylinder body 2, a second cylinder head 3, and a second cylinder body 4 fixedly connected in sequence. The first cylinder head 1 is provided with a first liquid suction hole and a first liquid discharge hole communicating with the first spherical inner cavity, and the second cylinder head 3 is also provided with a second liquid suction hole and a second liquid discharge hole communicating with the second spherical inner cavity. Figure 17 1 is a schematic diagram of the structure of the first cylinder head in this embodiment. The first cylinder head in this embodiment is different from the first cylinder head in Example 1 only in that the first liquid suction hole 101 and the first liquid discharge hole 102 in this embodiment are respectively arranged on the left and right sides of the first cylinder head, while the first liquid suction hole 101 and the first liquid discharge hole 102 in Example 1 are arranged on the upper surface of the first cylinder head.

[0088] After the first cylinder head 1 and the first cylinder body 2 are fixedly connected, they cooperate to form a first spherical inner cavity, in which a first spherical rotor is provided, and the spherical outer peripheral surface of the first spherical rotor is adapted to the first spherical inner cavity. After the second cylinder head 3 and the second cylinder body 4 are fixedly connected, they cooperate to form a second spherical inner cavity, in which a second spherical rotor is provided, and the spherical outer peripheral surface of the second spherical rotor is adapted to the second spherical inner cavity; the lower end of the drive shaft of the first spherical rotor passes through the lower axial hole of the first spherical inner cavity and the upper axial hole of the second spherical inner cavity in sequence and is connected to the second spherical rotor, and a seal is provided between the drive shaft of the first spherical rotor and the lower axial hole of the first spherical inner cavity and the upper axial hole of the second spherical inner cavity.

[0089] The first spherical rotor in this embodiment has the same structure as the first spherical rotor in Example 1, and both include a piston A6, a rotating disk A7, and a sliding shoe rotating sleeve A8. The specific structures of the piston A6, the rotating disk A7, and the sliding shoe rotating sleeve A8 have been described in detail in Example 1 and will not be repeated here.

[0090] The second spherical rotor in this embodiment includes a piston C12, a rotating disk C13 and a sliding shoe sleeve C14. Figure 12 The structure of the middle piston A6 is the same. The center of the spherical top surface of the piston C12 is provided with a protruding sliding shoe, which is marked as sliding shoe C. The specific structure of the rotating disk C13 is the same as that of the middle piston A6. Figure 13 The specific structure of the middle turntable A7 is the same, and the turntable axis protruding from the center of the spherical bottom surface of the lower end of the turntable C13 is recorded as the turntable axis C.

[0091] like Figure 16 As shown, the sliding shoe sleeve C14 is placed in the sleeve hole C provided on the second spherical inner cavity to form a rotational fit. In this embodiment, the sleeve hole C is provided on the second cylinder head 3; Figure 20 The figure shows the structure of the sliding shoe sleeve C14. A groove C1401 is provided at the lower end of the sliding shoe sleeve C14, and a connecting hole C1402 is located in the center of the top surface of the sliding shoe sleeve C14, which is compatible with the connector A702. A sliding shoe C, mounted on the end of the piston C12, is placed in the groove C1401. The two parallel side surfaces of the sliding shoe C slidably fit with the two side surfaces of the groove C. The parallel side surfaces of the sliding shoe C are symmetrically arranged on either side of the axis of the turntable shaft C and parallel to the central axis of the cylindrical hinge. The central axis of the sliding shoe sleeve C14 passes through the center of the piston C12, and the central axis of the turntable shaft C forms an angle with the central axis of the sliding shoe sleeve C14. When the second spherical rotor rotates, the sliding shoe C slides back and forth within the groove C, forming two second working chambers with alternating volumes between the upper end surface of the turntable C13, the lower end surface of the piston C12, and the inner spherical surface of the second spherical cavity. In this embodiment, the structure of the connecting hole C is identical to that of the connecting hole B in Example 1.

[0092] In this embodiment, the first cylinder head 1 is provided with a first liquid suction hole 101 and a first liquid discharge hole 102 communicating with the first spherical inner cavity. The second cylinder head 3 is also provided with a second liquid suction hole 301 and a second liquid discharge hole 302 communicating with the second spherical inner cavity. A seal is provided between the first and second spherical inner cavities. In this embodiment, the seal is a skeleton oil seal. There are two seals, which are arranged in opposite directions and are both arranged between the turntable shaft A701 and the first cylinder body 2. In this embodiment, a seal is also provided between the turntable shaft C and the second cylinder body 4 to prevent the medium in the second spherical inner cavity from leaking to the outside of the stator. A bearing is also provided between the turntable shaft C and the second cylinder body 4.

[0093] In this embodiment, the drive shaft of the second spherical rotor is a turntable shaft C, which extends from the lower portion of the second cylinder body 4 and is connected to a drive component. When the drive component drives the second spherical rotor to rotate within the second spherical inner cavity, the turntable shaft C rotates and drives the turntable C13 and piston C12, causing the slide shoe C to slide back and forth within the chute C. The piston C12 and turntable C13 swing relative to each other, forming two second working chambers 200 with alternating volumes between the upper end surface of the turntable C13, the two side surfaces of the piston C12, and the inner spherical surface of the second spherical inner cavity. One of the second working chambers 200 is connected to the second suction hole 301 provided in the second cylinder head 3 when liquid is to be aspirated, and the other second working chamber 300 is connected to the second discharge hole 302 provided in the second cylinder head 3 when liquid is to be compressed and discharged. When the turntable shaft C rotates one revolution, the turntable C13 and piston C12 also rotate one revolution, and the slide shoe C swings once within the chute C provided on the upper end surface of the slide shoe rotating sleeve C. Each of the two second working chambers 300 undergoes a complete suction and compression and discharge process.

[0094] When the second spherical rotor rotates, the sliding shoe rotating sleeve C14 is connected to the connector A702 through the connecting hole C1402 provided in the center of its top surface. The sliding shoe rotating sleeve C14 drives the turntable shaft A of the first spherical rotor to rotate. When the turntable shaft A rotates, it drives the turntable A7 and piston A6. The sliding shoe A slides back and forth in the slide groove A, and the piston A6 and turntable A7 swing relative to each other. Two first working chambers with alternating volumes are formed between the upper end surface of the turntable A7, the two side surfaces of the piston A6, and the inner spherical surface of the first spherical inner cavity. 100, when one of the first working chambers 100 needs to absorb liquid, it is connected to the first liquid absorption hole 101 provided on the first cylinder head 1, and when the other first working chamber 100 needs to compress and discharge liquid, it is connected to the first liquid discharge hole 102 provided on the first cylinder head 1; the turntable shaft A rotates one circle, the piston A6 also rotates one circle, and the lower end of the turntable shaft A is fixed with a sliding shoe A which swings once in the sliding groove A provided on the lower end surface of the sliding shoe rotating sleeve A8, and the two first working chambers 100 each undergo a complete liquid absorption and compression and discharge process.

[0095] Example 3:

[0096] The present utility model embodiment 3 provides a composite ball pump, such as Figure 21FIG2 is a schematic diagram of the structure of the composite ball pump in Example 3. The composite ball pump provided in this embodiment includes a stator, which includes a first cylinder head 1, a first cylinder body 2, a first spindle support 5, a second cylinder head 3, and a second cylinder body 4 fixedly connected in sequence. The structures of the first cylinder head 1, the first cylinder body 2, the second cylinder head 3, and the second cylinder body 4 in this embodiment are the same as those in Example 2, except that a first spindle support 5 is provided between the first cylinder body 2 and the second cylinder head 3 in this embodiment, and a piston shaft hole D is provided in the first cylinder head 1. After the first cylinder head 1 and the first cylinder body 2 are fixedly connected, they cooperate to form a first spherical inner cavity, in which a first spherical rotor is provided, and the spherical outer peripheral surface of the first spherical rotor is adapted to the first spherical inner cavity. After the second cylinder head 3 and the second cylinder body 4 are fixedly connected, they cooperate to form a second spherical inner cavity, in which a second spherical rotor is provided, and the spherical outer peripheral surface of the second spherical rotor is adapted to the second spherical inner cavity; the lower end of the drive shaft of the first spherical rotor passes through the lower axial hole of the first spherical inner cavity and the upper axial hole of the second spherical inner cavity in sequence and is connected to the second spherical rotor.

[0097] The first spherical rotor in this embodiment includes a piston D15, a rotating disk D16 and a main shaft D17. Figure 22 The figure shows a schematic diagram of the structure of the piston D. The piston D15 has a spherical top surface, two side surfaces at a certain angle, and a piston pin seat D protruding from the lower part of the two side surfaces. The end surfaces of the piston pin seat D are spherical surfaces that adapt to the second spherical inner cavity. The spherical top surface of the piston D15 adapts to the second spherical inner cavity and forms a sealed dynamic fit. A piston shaft D1501 is provided in the center of the spherical top surface of the piston D15. The piston shaft D1501 forms a rotational fit with the piston shaft hole D provided in the first spherical inner cavity.

[0098] The specific structure of the turntable D16 Figure 7 The specific structure of the middle turntable B10 is the same. The sliding shoe provided at the lower end of the turntable D16 is marked as sliding shoe D. The top center of the turntable D16 is provided with a turntable pin seat D adapted to the piston pin seat D. The piston pin seat D and the turntable pin seat D form a cylindrical hinge. The specific structure of the main shaft D17 is the same as Figure 8 The specific structure of the middle spindle B11 is the same. The central axis of the spindle D17 passes through the center of the turntable D16. A slide groove D is provided on the upper end surface of the spindle D17. The slipper D at the lower part of the turntable D16 is placed in the slide groove D to form a sliding fit. A connector D1701 is provided at the lower end of the spindle D17. The connector D1701 is connected to the first spherical rotor. The spindle D17 serves as the drive shaft of the first spherical rotor. When the first spherical rotor rotates, the slipper D slides back and forth in the slide groove D, forming two first working chambers with alternating volumes between the upper end surface of the turntable D16, the two side surfaces of the piston D15, and the inner spherical surface of the first spherical inner cavity.

[0099] The second spherical rotor in this embodiment includes a piston E18, a rotating disk E19, and a sliding shoe rotating sleeve E20. The specific structure of the piston E18 is similar to Figure 12 The specific structure of the middle piston A6 is the same as that of the piston E18. A protruding sliding shoe is provided in the center of the spherical top surface of the piston E18, which is marked as sliding shoe E. The specific structure of the rotating disk E19 is the same as that of the middle piston A6. Figure 13 The specific structure of the middle turntable A7 is the same. The turntable shaft protruding from the center of the spherical bottom surface of the lower end of the turntable E19 is recorded as the turntable shaft E. The turntable shaft E is the driving shaft of the second spherical rotor in this embodiment.

[0100] like Figure 21 As shown, the sliding shoe swivel E20 is placed in the swivel hole E provided on the second spherical inner cavity to form a rotational fit, and the second cylinder head is provided with a swivel hole E; the specific structure of the sliding shoe swivel E20 is similar to Figure 20 The structure of the sliding shoe sleeve C14 in the second embodiment is identical. A sliding groove E is provided at the lower end of the sliding shoe sleeve E20, and a connecting hole E is located in the center of the top surface of the sliding shoe sleeve E20, which is compatible with the connector D1701. A sliding shoe E, mounted on the end of the piston E18, is placed within the sliding groove E, with the two parallel side surfaces of the sliding shoe E slidingly engaging with the two side surfaces of the sliding groove E. The parallel side surfaces of the sliding shoe E are symmetrically arranged on either side of the axis of the turntable shaft E and parallel to the central axis of the cylindrical hinge. The central axis of the sliding shoe sleeve E20 passes through the center of the second spherical cavity, and the central axis of the turntable shaft E forms an angle with the central axis of the sliding shoe sleeve E. When the second spherical rotor rotates, the sliding shoe E reciprocates within the sliding groove E, forming two second working chambers of alternating volume between the upper end surface of the turntable E19, the two side surfaces of the piston E18, and the inner spherical surface of the second spherical cavity. In this embodiment, the structure of the connecting hole E is identical to that of the connecting hole B901 in the first embodiment.

[0101] In this embodiment, the first cylinder head 1 is provided with a first liquid suction hole 101 and a first liquid discharge hole 102 communicating with the first spherical inner cavity. The second cylinder head 3 is also provided with a second liquid suction hole 301 and a second liquid discharge hole 302 communicating with the second spherical inner cavity. A seal is provided between the first and second spherical inner cavities. In this embodiment, the seal is a skeleton oil seal. There are two seals, which are arranged in opposite directions and are both arranged between the main shaft D17 and the first main shaft bracket 5. In this embodiment, a seal is also provided between the turntable shaft E and the second cylinder body 4 to prevent the medium in the first spherical inner cavity from leaking to the outside of the stator. A bearing is also provided between the turntable shaft E and the second cylinder body 4.

[0102] In this embodiment, the driving shaft of the second spherical rotor is a turntable shaft E, which extends from the lower part of the second cylinder body 4 and is connected to the driving component. When the driving component drives the second spherical rotor to rotate in the second spherical inner cavity, the turntable shaft E rotates to drive the turntable E19 and the piston E18, the slipper E slides back and forth in the slide groove E, and the piston E18 and the turntable E19 swing relative to each other. Two second working chambers 200 with alternating volumes are formed between the upper end surface of the turntable E19, the two side surfaces of the piston E18, and the inner spherical surface of the second spherical inner cavity. When one of the second working chambers 200 needs to aspirate liquid, it is connected to the second liquid suction hole 301 provided on the second cylinder head 3, and when the other second working chamber 200 needs to compress and discharge liquid, it is connected to the second liquid discharge hole 302 provided on the second cylinder head 3. When the turntable shaft E rotates one circle, the turntable E19 and the piston E18 also rotate one circle, and the slipper E swings once in the slide groove E provided on the upper end surface of the slipper rotating sleeve E, and each of the two second working chambers 200 undergoes a complete liquid aspiration and compression and discharge process.

[0103] When the second spherical rotor rotates, the sliding shoe rotating sleeve E20 is connected to the connector D1701 through the connecting hole E provided in the center of its top surface. The sliding shoe rotating sleeve E20 drives the main shaft D17 of the first spherical rotor to rotate. When the main shaft D17 rotates, it drives the turntable D16 and the piston D15. The sliding shoe D slides back and forth in the slide groove D, and the piston D15 and the turntable D16 swing relative to each other. Two first working chambers with alternating volumes are formed between the upper end surface of the turntable D16, the two side surfaces of the piston D15, and the inner spherical surface of the first spherical inner cavity. The first working chambers 100 are connected to the first suction hole 101 provided on the first cylinder head 1 when one of the first working chambers 100 needs to absorb liquid, and the other first working chamber 100 is connected to the first discharge hole 102 provided on the first cylinder head 1 when the other first working chamber 100 needs to compress and discharge liquid; the main shaft D17 rotates one circle, the piston D15 also rotates one circle, and the lower end of the main shaft D17 is fixed with a sliding shoe D which swings once in the sliding groove D provided on the upper end surface of the main shaft D17, and the two first working chambers 100 each undergo a complete process of sucking liquid and compressing and discharging liquid.

[0104] Example 4:

[0105] The present utility model embodiment 4 provides a composite ball pump, such as Figure 232 is a schematic diagram of the structure of the composite spherical pump in Example 4. The composite spherical pump provided in this embodiment includes a stator, which includes a first cylinder head 1, a first cylinder body 2, a second spindle support 21, a second cylinder head 3, a second cylinder body 4, and a first spindle support 5 fixed in sequence. The structures of the first cylinder head 1, the first cylinder body 2, the second cylinder head 3, and the second cylinder body 4 in this embodiment are the same as those in Example 2, except that in this embodiment, the second spindle support 21 is provided between the first cylinder body 2 and the second cylinder head 3, the first spindle support 5 is fixed to the bottom end of the second cylinder body 4, and a piston shaft hole D is provided in this embodiment on the first cylinder head 1. After the first cylinder head 1 and the first cylinder body 2 are fixedly connected, they cooperate to form a first spherical inner cavity, in which a first spherical rotor is provided, and the spherical outer peripheral surface of the first spherical rotor is adapted to the first spherical inner cavity. After the second cylinder head 3 and the second cylinder body 4 are fixedly connected, they cooperate to form a second spherical inner cavity, in which a second spherical rotor is provided, and the spherical outer peripheral surface of the second spherical rotor is adapted to the second spherical inner cavity; the lower end of the drive shaft of the first spherical rotor passes through the lower axial hole of the first spherical inner cavity and the upper axial hole of the second spherical inner cavity in sequence and is connected to the second spherical rotor, and a seal is provided between the drive shaft of the first spherical rotor and the lower axial hole of the first spherical inner cavity and the upper axial hole of the second spherical inner cavity.

[0106] The first spherical rotor in this embodiment has the same structure as the first spherical rotor in Example 3, and both include a piston D, a turntable D, and a main shaft D. The specific structures of the piston D, turntable D, and main shaft D have been described in detail in Example 3 and will not be repeated here. The main shaft D is the driving shaft of the first spherical rotor.

[0107] The second spherical rotor in this embodiment includes a piston F22, a rotating disk F23 and a main shaft F24. Figure 6 The specific structure of the middle piston B9 is the same, except that a connecting hole F is provided in the center of the spherical top surface of the piston F22 to match the connector D1701. The structure of the connecting hole F is the same as that of the connecting hole B in Example 1. The specific structure of the turntable F23 is the same as that of the turntable F23. Figure 7 The specific structure of the middle turntable B10 is the same as that of the spindle F24. Figure 8 The specific structure of the middle spindle B11 is the same, and the spindle F24 is the driving shaft of the second spherical rotor.

[0108] In this embodiment, the first cylinder head 1 is provided with a first liquid suction hole 101 and a first liquid discharge hole 102 communicating with the first spherical inner cavity. The second cylinder head 3 is also provided with a second liquid suction hole 301 and a second liquid discharge hole 302 communicating with the second spherical inner cavity. The seals are skeleton oil seals, placed both between the spindle D17 and the second spindle support 21 and between the spindle D17 and the second cylinder head 3. The two skeleton oil seals are oriented in opposite directions to prevent leakage of the medium in the first and second spherical inner cavities. In this embodiment, a seal is also provided between the spindle F24 and the first spindle support 5 to prevent leakage of the medium in the second spherical inner cavity to the outside of the stator. A bearing is also provided between the spindle F24 and the first spindle support 5.

[0109] In this embodiment, the driving shaft of the second spherical rotor is the main shaft F24, which extends from the lower part of the first main shaft bracket 5 and is connected to the driving component. When the driving component drives the second spherical rotor to rotate in the second spherical cavity, the main shaft F24 rotates to drive the turntable F23 and the piston F22, and the shoe F slides back and forth in the slide groove F. The piston F22 and the turntable F23 swing relative to each other, forming two alternating volumes between the upper end surface of the turntable F23, the two side surfaces of the piston F22, and the inner spherical surface of the second spherical cavity. The second working studios 200, one of the second working studios 200 is connected to the second suction hole 301 provided on the second cylinder head 3 when it needs to suck liquid, and the other second working studio 200 is connected to the second discharge hole 302 provided on the second cylinder head 3 when it needs to compress and discharge liquid; the main shaft F24 rotates one circle, the piston F22 also rotates one circle, and the lower end of the turntable shaft F is fixed with a sliding shoe F which swings once in the sliding groove F provided on the upper end surface of the main shaft F, and the two second working studios 200 each undergo a complete suction and compression and discharge process.

[0110] When the second spherical rotor rotates, piston F22 connects to connector D1701 through connecting hole F provided in the center of its top surface. Piston F22 drives the main shaft D17 of the first spherical rotor to rotate. When the main shaft D17 rotates, it drives the turntable D16 and piston D15. Shoe D slides back and forth in the chute D. Piston D15 and turntable D16 swing relative to each other. Two first working chambers 100 with alternating volumes are formed between the upper end surface of turntable D16, the two side surfaces of piston D15, and the first spherical inner cavity. When one first working chamber 100 needs to aspirate liquid, it connects to the first suction hole 101 provided in the first cylinder head 1. When the other first working chamber 100 needs to compress and discharge liquid, it connects to the first discharge hole 102 provided in the first cylinder head 1. When the main shaft D17 rotates one revolution, the piston D15 also rotates one revolution. The shoe D fixed to the lower end of the main shaft D17 swings once in the chute D provided on the upper end surface of the main shaft D. Each of the two first working chambers 100 undergoes a complete suction and compression and discharge process.

[0111] Example 5:

[0112] Example 5 of the present utility model provides a composite spherical pump, in which a third spherical inner cavity is further provided in the stator and is located at the lower part of the second spherical inner cavity. A third spherical rotor is provided in the third spherical inner cavity, and the spherical outer peripheral surface of the third spherical rotor is adapted to the third spherical inner cavity. The lower end of the drive shaft of the second spherical rotor passes through the lower axial hole of the second spherical inner cavity and the upper axial hole of the third spherical inner cavity in sequence and is connected to the third spherical rotor. The drive shaft of the third spherical rotor extends from the lower part of the stator and is connected to the drive component; a seal is provided between the drive shaft of the second spherical rotor and the lower axial hole of the second spherical inner cavity and the upper axial hole of the third spherical inner cavity; the stator is also provided with a third suction hole and a third discharge hole connected to the third spherical inner cavity.

[0113] In this embodiment, the first spherical rotor is the same as the first spherical rotor in Embodiment 1, the second spherical rotor is the same as the second spherical rotor in Embodiment 1, and the third spherical rotor is the same as the second spherical rotor in Embodiment 4.

[0114] It should be noted that the cylindrical hinges in Examples 1 to 4 can be either C-shaped cylindrical hinge connections or center pin cylindrical hinge connections. Figure 12 Middle piston A and Figure 13 The turntable A is a structural schematic diagram of a C-type cylindrical hinge connection. The piston pin seat A is a protruding semi-cylindrical structure with spherical ends. The turntable pin seat A is a semi-cylindrical hole structure recessed into the upper end face of the turntable A. The axis of the semi-cylindrical hole of the turntable pin seat A is parallel to the two side faces parallel to the sliding shoe A. The turntable pin seat A matches the piston pin seat A. The protruding semi-cylinder of the piston pin seat A is inserted into the semi-cylindrical hole of the turntable pin seat A to form a C-type cylindrical hinge connection. A sealed dynamic fit is formed between the mating surfaces of the C-type cylindrical hinge connection.

[0115] Figure 24 The figure shows a structural schematic diagram of the center pin cylindrical surface hinge connection, wherein a piston pin seat G protrudes from the lower part of the piston G25, and the piston pin seat G is a semi-cylindrical structure with a through piston pin hole on the central axis of the semi-cylinder; an opening is provided on the piston pin seat at the lower part of the piston G25 to form a semi-cylindrical groove, and the opening of the piston G25 is located in the middle of the piston pin seat G and is perpendicular to the axis of the piston pin hole of the piston pin seat G. The width of the opening of the piston G25 is adapted to the width of the raised semi-cylinder of the turntable pin seat G; a turntable pin seat G adapted to the piston pin seat G is provided in the top center of the turntable G26, the two ends of the turntable pin seat G are semi-cylindrical grooves, the middle part is a raised semi-cylinder, and a through turntable pin hole is provided in the center of the semi-cylinder; the center pin 27 is inserted into the pin hole formed by the matching of the turntable pin seat G and the piston pin seat G to form a center pin cylindrical surface hinge connection, and a sealed dynamic fit is formed between the mating surfaces of the center pin cylindrical surface hinge connection.

[0116] Preferably, the initial phase angles of the first spherical rotor and the second spherical rotor are adjusted to differ by 90 degrees. The position of one of the first working chambers 100 of the first spherical rotor when it begins to aspirate liquid is defined as the initial phase angle of the first spherical rotor, and the position of one of the second working chambers 200 of the second spherical rotor when it begins to aspirate liquid is defined as the initial phase angle of the second spherical rotor. The initial phase angles of the first spherical rotor and the second spherical rotor differ by 90 degrees. This improves the reliability of the transmission mechanism, and the torque changes of the mechanism operation are smooth and noise is low. At the same time, the requirements for the motor or other power input device are reduced, the load condition of the motor is optimized, the torque fluctuation is reduced, and the torque peak power of the drive motor is reduced, thereby reducing the motor cost and increasing the life of the motor.

[0117] It should be noted that, for the sake of convenience, the drawings in the description of Examples 1 to 4 do not show the situation where the initial phase angles of the first spherical rotor and the second spherical rotor differ by 90 degrees.

[0118] Examples 1 to 5 are only detailed descriptions of five specific implementation methods of the present invention, but it should be understood that the protection scope of the present invention is not limited by the specific implementation methods.

[0119] In summary, the utility model provides a composite spherical pump, which is used to solve the problem that the existing spherical pump is not suitable for mixing two media that are prone to reaction and cannot accurately control the mixing ratio of the two media. It has a simple structure and is easy to use.

Claims

1. A composite ball pump, characterized in that: The stator comprises a stator, wherein a first spherical inner cavity and a second spherical inner cavity are arranged vertically therein, a first spherical rotor and a second spherical rotor are respectively disposed in the first spherical inner cavity and the second spherical inner cavity, and the spherical outer circumferences of the first spherical rotor and the second spherical rotor are respectively adapted to the first spherical inner cavity and the second spherical inner cavity; the lower end of the drive shaft of the first spherical rotor passes through the lower axial hole of the first spherical inner cavity and the upper axial hole of the second spherical inner cavity in sequence and is connected to the second spherical rotor, and a seal is provided between the drive shaft of the first spherical rotor and the lower axial hole of the first spherical inner cavity and the upper axial hole of the second spherical inner cavity; the stator is provided with a first liquid suction hole and a first liquid discharge hole communicating with the first spherical inner cavity, and the stator is also provided with a second liquid suction hole and a liquid discharge hole communicating with the second spherical inner cavity; The driving shaft of the second spherical rotor extends from the lower part of the stator and is connected to the driving component. When the driving component drives the second spherical rotor to rotate in the second spherical inner cavity, two second working chambers with alternating volumes are formed in the second spherical inner cavity. When the second working chamber needs to aspirate liquid, it is connected to the second liquid suction hole, and when it needs to discharge liquid, it is connected to the second liquid discharge hole. At the same time, the upper part of the second spherical rotor drives the first spherical rotor to rotate, forming two first working chambers with alternating volumes in the first spherical inner cavity. When the first working chamber needs to aspirate liquid, it is connected to the first liquid suction hole, and when it needs to discharge liquid, it is connected to the first liquid discharge hole.

2. A composite ball pump according to claim 1, characterized in that: The stator comprises: a first cylinder head, wherein a first hemispherical inner cavity I is formed in a lower portion of the first cylinder head; A first cylinder body, wherein a first hemispherical inner cavity II is formed on the upper portion of the first cylinder body, wherein the first hemispherical inner cavity I and the first hemispherical inner cavity II cooperate to form a first spherical inner cavity; a first liquid suction hole and a first liquid discharge hole communicating with the first spherical inner cavity are formed on the first cylinder cover; a second cylinder head, wherein a second hemispherical inner cavity I is formed in a lower portion of the second cylinder head; A second cylinder body, wherein a second hemispherical inner cavity II is formed on the upper portion of the second cylinder body, and the second hemispherical inner cavity I and the second hemispherical inner cavity II cooperate to form a second spherical inner cavity; a second liquid suction hole and a second liquid discharge hole communicating with the second spherical inner cavity are provided on the second cylinder cover; The first cylinder head, the first cylinder body, the second cylinder head and the second cylinder body are fixedly connected in sequence.

3. A composite ball pump according to claim 1 or 2, characterized in that: The first spherical rotor comprises: Piston A has a spherical top surface, two side surfaces at a certain angle, and a piston pin seat A protruding from the lower portion of each side surface. The end surfaces of the piston pin seat A are spherical surfaces that adapt to the first spherical inner cavity. A protruding sliding shoe A is provided at the center of the spherical top surface of the piston A. The spherical top surface of the piston A adapts to the first spherical inner cavity to form a sealed dynamic fit. Turntable A has a spherical bottom surface that fits in with the first spherical inner cavity to form a sealed dynamic fit. A turntable pin seat A is provided in the center of the top surface of turntable A, which fits with the piston pin seat A. The piston pin seat A and the turntable pin seat A form a cylindrical hinge connection. A turntable shaft A protrudes from the center of the spherical bottom surface at the lower end of turntable A. The central axis of the turntable shaft A passes through the center of the sphere of turntable A. A connector A is provided at the lower end of the turntable shaft A, which is connected to the second spherical rotor. The turntable shaft A serves as the drive shaft for the first spherical rotor. The sliding shoe rotating sleeve A is placed in the rotating sleeve hole A provided on the first spherical inner cavity to form a rotating fit. A sliding groove A is provided at the lower end of the sliding shoe rotating sleeve A. The sliding shoe A at the end of the piston A is placed in the sliding groove A. The two parallel side surfaces of the sliding shoe A fit with the two side surfaces of the sliding groove A to form a sliding fit; the two parallel side surfaces of the sliding shoe A are symmetrically arranged on both sides of the axis of the sliding shoe rotating sleeve A and are parallel to the central axis of the cylindrical hinge; the central axis of the sliding shoe rotating sleeve A passes through the center of the first spherical inner cavity, and an angle is formed between the central axis of the turntable shaft A and the central axis of the sliding shoe rotating sleeve A; when the first spherical rotor rotates, the sliding shoe A slides back and forth in the sliding groove A, and two first working chambers with alternating volumes are formed between the upper end surface of the turntable A, the two side surfaces of the piston A and the inner spherical surface of the first spherical inner cavity.

4. A composite ball pump according to claim 3, characterized in that: The second spherical rotor comprises: Piston B has a spherical top surface, two angled side surfaces, and piston pin seats B protruding from the lower portions of the two side surfaces. The end surfaces of piston pin seat B are spherical surfaces that mate with the second spherical inner cavity. The spherical top surface of piston B mates with the second spherical inner cavity to form a sealed dynamic fit. A connecting hole B is provided in the center of the spherical top surface of piston B, which mates with connector A. The central axis of connecting hole B passes through the center of the first spherical inner cavity. Turntable B has a spherical bottom surface that fits in a sealed dynamic fit with the second spherical inner cavity. A turntable shaft B protrudes from the center of the spherical bottom surface of turntable B. The central axis of turntable shaft B passes through the center of the spherical surface of turntable B. A sliding shoe B is fixed to the lower end of turntable shaft B. A turntable pin seat B that fits with piston pin seat B is provided in the center of the top surface of turntable B. The piston pin seat B and turntable pin seat B form a cylindrical hinge connection. The main shaft B has a groove B provided on its upper end surface, and a shoe B at the lower part of the turntable B is placed in the groove B, with the two parallel side surfaces of the shoe B fitting into the two side surfaces of the groove B to form a sliding fit; the two parallel side surfaces of the shoe B are symmetrically arranged on both sides of the axis of the turntable shaft B and parallel to the central axis of the cylindrical hinge; the main shaft B is the driving shaft of the second spherical rotor; the central axis of the main shaft B passes through the center of the second spherical inner cavity; the central axis of the main shaft B forms an angle with the central axis of the connecting hole B; when the second spherical rotor rotates, the shoe B slides back and forth in the groove B, forming two second working chambers with alternating volumes between the upper end surface of the turntable B, the two side surfaces of the piston B and the inner spherical surface of the second spherical inner cavity.

5. A composite ball pump according to claim 3, characterized in that: The second spherical rotor comprises: Piston C has a spherical top surface, two side surfaces at a certain angle, and a piston pin seat C protruding from the lower portion of the two side surfaces. The end surfaces of the piston pin seat C are spherical surfaces that adapt to the second spherical inner cavity. A protruding sliding shoe C is provided at the center of the spherical top surface of the piston C. The spherical top surface of the piston C adapts to the second spherical inner cavity to form a sealed dynamic fit. The turntable C has a spherical bottom surface that fits in with the second spherical inner cavity to form a sealed dynamic fit. A turntable pin seat C is provided in the center of the top surface of the turntable C, which fits with the piston pin seat C. The piston pin seat C and the turntable pin seat C form a cylindrical hinge. A turntable shaft C protrudes from the center of the spherical bottom surface at the lower end of the turntable C. The central axis of the turntable shaft C passes through the center of the turntable C. The turntable shaft C serves as the drive shaft of the second spherical rotor. The sliding shoe sleeve C is placed in the sleeve hole C provided on the second spherical inner cavity to form a rotating fit. A slide groove C is provided at the lower end of the sliding shoe sleeve C, and a connecting hole C adapted to the connector A is provided in the center of the top surface of the sliding shoe sleeve C. The sliding shoe C provided at the end of the piston C is placed in the slide groove C, and the two parallel side surfaces of the sliding shoe C fit with the two side surfaces of the slide groove C to form a sliding fit; the two parallel side surfaces of the sliding shoe C are symmetrically arranged on both sides of the axis of the turntable shaft C and are parallel to the central axis of the cylindrical hinge; the central axis of the sliding shoe sleeve C passes through the center of the piston C, and the central axis of the turntable shaft C forms an angle with the central axis of the sliding shoe sleeve C; when the second spherical rotor rotates, the sliding shoe C slides back and forth in the slide groove C, and two second working chambers with alternating volumes are formed between the upper end surface of the turntable C, the two side surfaces of the piston C and the inner spherical surface of the second spherical inner cavity.

6. A composite ball pump according to claim 1 or 2, characterized in that: The first spherical rotor comprises: Piston D, which has a spherical top surface, two side surfaces at a certain angle, and a piston pin seat D protruding from the lower portion of each side surface. The end surfaces of the piston pin seat D are spherical surfaces adapted to the first spherical inner cavity. The spherical top surface of the piston D is adapted to the first spherical inner cavity to form a sealed dynamic fit. A piston shaft D is provided in the center of the spherical top surface of the piston D, and the piston shaft D forms a rotational fit with a piston shaft hole D provided in the first spherical inner cavity. The turntable D has a spherical bottom surface that fits in a sealed dynamic fit with the first spherical inner cavity. A turntable shaft D protrudes from the center of the spherical bottom surface of the turntable D. The central axis of the turntable shaft D passes through the center of the spherical surface of the turntable D. A sliding shoe D is fixed to the lower end of the turntable shaft D. A turntable pin seat D that fits with the piston pin seat D is provided at the center of the top surface of the turntable D. The piston pin seat D and the turntable pin seat D form a cylindrical hinge connection. The main shaft D has a central axis passing through the center of the turntable D, and the central axis of the main shaft D forms an angle with the central axis of the piston shaft D; a slide groove D is provided on the upper end surface of the main shaft D, and a slipper D at the lower part of the turntable D is placed in the slide groove D, and the two parallel side surfaces of the slipper D fit with the two side surfaces of the slide groove D to form a sliding fit; the two parallel side surfaces of the slipper D are symmetrically arranged on both sides of the axis of the turntable shaft D and are parallel to the central axis of the cylindrical hinge; a connector D is provided at the lower end of the main shaft D, and the connector D is connected to the second spherical rotor. The main shaft D serves as the driving shaft of the first spherical rotor; when the first spherical rotor rotates, the slipper D slides back and forth in the slide groove D, forming two first working chambers with alternating volumes between the upper end surface of the turntable D, the two side surfaces of the piston D and the inner spherical surface of the first spherical inner cavity.

7. A composite ball pump according to claim 6, characterized in that: The second spherical rotor comprises: The piston E has a spherical top surface, two side surfaces at a certain angle, and a piston pin seat E protruding from the lower portion of the two side surfaces. The end surfaces of the piston pin seat E are spherical surfaces that adapt to the second spherical inner cavity. A protruding sliding shoe E is provided at the center of the spherical top surface of the piston E. The spherical top surface of the piston E adapts to the second spherical inner cavity to form a sealed dynamic fit. The turntable E has a spherical bottom surface that fits in with the second spherical inner cavity to form a sealed dynamic fit. A turntable pin seat E is provided in the center of the top surface of the turntable E, which fits with the piston pin seat E. The piston pin seat E and the turntable pin seat E form a cylindrical hinge connection. A turntable shaft E protrudes from the center of the spherical bottom surface at the lower end of the turntable E. The central axis of the turntable shaft E passes through the center of the turntable E. The turntable shaft E serves as the drive shaft of the second spherical rotor. The sliding shoe rotating sleeve E is placed in the rotating sleeve hole E provided on the second spherical inner cavity to form a rotational fit. A slide groove E is provided at the lower end of the sliding shoe rotating sleeve E, and a connecting hole E adapted to the connector D is provided in the center of the top surface of the sliding shoe rotating sleeve E. The sliding shoe E provided at the end of the piston E is placed in the slide groove E, and the two parallel side surfaces of the sliding shoe E fit with the two side surfaces of the slide groove E to form a sliding fit; the two parallel side surfaces of the sliding shoe E are symmetrically arranged on both sides of the axis of the turntable shaft E and are parallel to the central axis of the cylindrical hinge; the central axis of the sliding shoe rotating sleeve E passes through the center of the piston E, and an angle is formed between the central axis of the turntable shaft E and the central axis of the sliding shoe rotating sleeve E; when the second spherical rotor rotates, the sliding shoe E slides back and forth in the slide groove E, and two second working chambers with alternating volumes are formed between the upper end surface of the turntable E, the two side surfaces of the piston E and the inner spherical surface of the second spherical inner cavity.

8. A composite ball pump according to claim 6, characterized in that: The second spherical rotor comprises: Piston F has a spherical top surface, two side surfaces at a certain angle, and piston pin seats F protruding from the lower portions of the two side surfaces. The end surfaces of the piston pin seat F are spherical surfaces that adapt to the second spherical inner cavity. The spherical top surface of the piston F adapts to the second spherical inner cavity to form a sealed dynamic fit. A connecting hole F is provided in the center of the spherical top surface of the piston F, which adapts to the connector D. The axis of the connecting hole F passes through the center of the spherical top surface of the piston. The turntable F has a spherical bottom surface that fits in a sealed dynamic fit with the second spherical inner cavity. A turntable shaft F protrudes from the center of the spherical bottom surface of the turntable F. The central axis of the turntable shaft F passes through the center of the spherical surface of the turntable F. A sliding shoe F is fixed to the lower end of the turntable shaft F. A turntable pin seat F that fits with the piston pin seat F is provided in the center of the top surface of the turntable F. The piston pin seat F and the turntable pin seat F form a cylindrical hinge connection. The main shaft F has a central axis passing through the center of the turntable F. A slide groove F is provided on the upper end surface of the main shaft F. A slipper F at the lower portion of the turntable F is placed in the slide groove F. The two parallel side surfaces of the slipper F fit in a sliding fit with the two side surfaces of the slide groove F. The two parallel side surfaces of the slipper F are symmetrically arranged on both sides of the axis of the turntable shaft F and are parallel to the central axis of the cylindrical hinge. The main shaft F serves as the drive shaft of the second spherical rotor. The central axis of the main shaft F passes through the center of the first spherical inner cavity, and the central axis of the main shaft F forms an angle with the central axis of the connecting hole F. When the second spherical rotor rotates, the slipper F slides back and forth in the slide groove F, forming two second working chambers with alternating volumes between the upper end surface of the turntable F, the two side surfaces of the piston F, and the inner spherical surface of the second spherical inner cavity.

9. A composite ball pump according to claim 1, characterized in that: The initial phase angles of the first spherical rotor and the second spherical rotor differ by 90 degrees.

10. The composite ball pump according to claim 1, characterized in that: The stator is further provided with a third spherical inner cavity located at the lower part of the second spherical inner cavity, and a third spherical rotor is provided in the third spherical inner cavity. The spherical outer peripheral surface of the third spherical rotor is adapted to the third spherical inner cavity. The lower end of the drive shaft of the second spherical rotor passes through the lower axial hole of the second spherical inner cavity and the upper axial hole of the third spherical inner cavity in sequence and is connected to the third spherical rotor. The drive shaft of the third spherical rotor extends from the lower part of the stator and is connected to the drive component; a seal is provided between the drive shaft of the second spherical rotor and the lower axial hole of the second spherical inner cavity and the upper axial hole of the third spherical inner cavity; the stator is also provided with a third suction hole and a third discharge hole connected to the third spherical inner cavity.

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