Magnetic drive pump integrating motor and magnetic coupling device

Abstract

The invention belongs to the technical field of magnetic drive pumps, and particularly relates to a magnetic drive pump integrating a motor and a magnetic coupling device, which comprises a pumping pipe, a motor, a magnetic coupling device and a magnetic coupling device, the rotating shaft is coaxially and fixedly connected to the inner side of the pumping pipe; the impeller parts are rotationally arranged on the rotating shaft, the number of the impeller parts is at least one, and channels for fluid to pass through are formed in the impeller parts; the permanent magnet rotor part is fixedly embedded in the outer wall of the impeller part; and the electromagnetic stator assembly is in transmission connection with the permanent magnet rotor part, the electromagnetic stator assembly is used for enabling the permanent magnet rotor part to drive the impeller part to rotate, and the electromagnetic stator assembly is fixedly connected to the outer wall of the pumping pipe. Compared with a traditional magnetic drive pump, a motor and a magnetic coupling device are not needed, the size and the weight of the magnetic drive pump can be remarkably reduced, the permanent magnet rotor part is directly driven through the electromagnetic stator assembly, fluid flows in the pumping pipe, and it can be guaranteed that the power is not changed under the condition that the size and the mass are reduced through a direct drive mode.

Description

Technical Field

[0001] The invention belongs to the technical field of magnetic pumps, and in particular relates to a magnetic pump integrating a motor and a magnetic coupling device. Background Art

[0002] There are many kinds of traditional magnetic pumps, but they are all composed of a motor that drives a magnetic coupler and then drives a pump body. The motor plus the magnetic coupling device causes the traditional magnetic pump to be larger in size and weight. At present, there is no magnetic pump that is lighter than the traditional magnetic pump at the same power. Therefore, we propose a magnetic pump that combines a motor and a magnetic coupling device. Summary of the invention

[0003] The object of the present invention is to provide a magnetic pump integrating a motor and a magnetic coupling device to solve the above-mentioned problem.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] A magnetic pump integrating a motor and a magnetic coupling device, comprising:

[0006] a pumping tube having a passage therein for the passage of fluid;

[0007] A rotating shaft, coaxially arranged inside the pumping pipe;

[0008] An impeller part, coaxially arranged on the rotating shaft, the impeller part is rotatably arranged, the impeller part is at least one, and a channel for fluid to pass through is arranged in the impeller part;

[0009] A permanent magnet rotor portion, embedded in the outer wall of the impeller portion;

[0010] The electromagnetic stator assembly is drivingly connected to the permanent magnet rotor part, and the electromagnetic stator assembly is used to make the permanent magnet rotor part drive the impeller part to rotate. The electromagnetic stator assembly is fixedly connected to the outer wall of the pumping pipe.

[0011] The electromagnetic stator assembly dissipates heat through the wall of the pumping pipe, the shell of the electromagnetic stator assembly and the water flowing through the pumping pipe.

[0012] Optionally, the impeller portion includes a sleeve, which is sleeved on the rotating shaft, and the sleeve is axially limited with the rotating shaft. The outer wall of the sleeve is fixedly connected to the inner edges of a number of blades arranged at equal intervals, and the outer edges of the blades are fixedly connected to the inner wall of the same circular ring. The permanent magnet rotor portion is embedded in the outer wall of the circular ring, and a gap is left between the outer wall of the circular ring and the inner wall of the pumping pipe.

[0013] According to the magnetic pump integrating a motor and a magnetic coupling device, both ends of the shaft sleeve are respectively limited and matched with limit rings, and the limit rings are coaxially fixed to the rotating shaft.

[0014] According to the above-mentioned magnetic pump integrating a motor and a magnetic coupling device, the permanent magnet rotor portion includes a plurality of permanent magnet sheets arranged at equal intervals in the circumferential direction, the permanent magnet sheets are embedded in the outer wall of the circular ring, and the polarities of two adjacent permanent magnet sheets are opposite.

[0015] According to the above-mentioned magnetic pump integrating a motor and a magnetic coupling device, the electromagnetic stator assembly includes a plurality of electromagnetic stator parts hinged in sequence, the plurality of electromagnetic stator parts are arranged in an embrace on the outside of the pumping pipe, two adjacent electromagnetic stator parts are hinged by a connecting shaft, and the electromagnetic stator parts at both ends are fixed by buckles.

[0016] According to the magnetic pump incorporating a motor and a magnetic coupling device, the electromagnetic stator portion includes a plurality of electromagnetic stators. In the electromagnetic stator assembly composed of the plurality of electromagnetic stators, the polarities of two adjacent electromagnetic stators are opposite, and the electromagnetic stators are magnetically connected to the corresponding permanent magnet sheets.

[0017] The electromagnetic stator at one end of one of the electromagnetic stator parts is hinged to the electromagnetic stator at one end of the other electromagnetic stator part through the connecting shaft;

[0018] The electromagnetic stator portion located at the end away from the electromagnetic stator at one end of the connecting shaft and the electromagnetic stator portion located at the other end away from the electromagnetic stator at one end of the connecting shaft are fixed by the buckle.

[0019] According to the magnetic pump integrating a motor and a magnetic coupling device, when there are no less than two impeller parts, the rotation directions of two adjacent impeller parts are opposite.

[0020] According to the magnetic pump integrating a motor and a magnetic coupling device, when there are no less than two impeller parts, the rotation directions of two adjacent impeller parts are the same.

[0021] According to the magnetic pump integrating a motor and a magnetic coupling device, a spacer ring is provided between two adjacent electromagnetic stator parts, and the spacer ring is coaxially sleeved on the outer side of the pumping pipe.

[0022] According to the magnetic pump integrating a motor and a magnetic coupling device, the pumping pipe comprises a pipe wall, and threads for fixing to the pipeline are respectively formed at both ends of the pipe wall.

[0023] Compared with the prior art, the present invention has the following advantages and technical effects:

[0024] When in use, the pumping pipe is connected and arranged in the middle of the pipeline, and the electromagnetic stator assembly is connected to the control power supply. The electromagnetic stator assembly generates a magnetic field that penetrates the side wall of the pumping pipe, so that the electromagnetic acts on the permanent magnet rotor part and drives the permanent magnet rotor part to rotate, so that the permanent magnet rotor part drives the impeller part to rotate. When the impeller part rotates, a force for pumping fluid is formed on the inner side thereof, which can accelerate the passage of the fluid and play a pumping role. Compared with the traditional magnetic pump, the present invention does not require a motor and a magnetic coupling device, and can significantly reduce the volume and weight of the magnetic pump. The permanent magnet rotor part is directly driven by the electromagnetic stator assembly, so that the fluid flows from the inside of the pumping pipe. The direct drive form can ensure that the power remains unchanged when the volume and mass are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0026] Figure 1 It is a front cross-sectional view of the structure of the present invention;

[0027] Figure 2 It is a left side cross-sectional view of the structure of the present invention;

[0028] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle part;

[0029] Figure 4 For the present invention Figure 2 A partial enlarged view of point B in the middle;

[0030] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0031] Figure 6 This is a structural diagram of the connection mode when the electromagnetic stator parts of the present invention are two;

[0032] Figure 7 This is a structural diagram of the connection mode when there are more than two electromagnetic stator parts in the present invention;

[0033] Among them, 1. pumping pipe; 2. electromagnetic stator; 3. permanent magnet piece; 4. blade; 5. rotating shaft; 6. connecting shaft; 7. spacer ring; 8. limit ring; 9. impeller fan; 10. side cover; 101. pipe wall; 102. thread; 11. fixing plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Embodiment 1:

[0037] Reference Figures 1 to 4 The present invention discloses a magnetic pump integrating a motor and a magnetic coupling device, comprising:

[0038] A pumping tube 1, having a channel inside for the fluid to pass through;

[0039] A rotating shaft 5 is coaxially arranged inside the pumping pipe 1;

[0040] An impeller part is coaxially arranged on the rotating shaft 5, the impeller part is rotatably arranged, the impeller part is at least one, and a channel for fluid to pass through is arranged in the impeller part;

[0041] A permanent magnet rotor portion is embedded in the outer wall of the impeller portion;

[0042] The electromagnetic stator assembly is drivingly connected to the permanent magnet rotor part. The electromagnetic stator assembly is used to make the permanent magnet rotor part drive the impeller part to rotate. The electromagnetic stator assembly is fixedly connected to the outer wall of the pumping pipe 1.

[0043] When in use, the pumping pipe 1 is connected and arranged in the middle of the pipeline, and the electromagnetic stator assembly is connected to the control power supply. The magnetic field generated by the electromagnetic stator assembly penetrates the side wall of the pumping pipe 1, so that the electromagnetic acts on the permanent magnet rotor part and drives the permanent magnet rotor part to rotate, so that the permanent magnet rotor part drives the impeller part to rotate. When the impeller part rotates, a force for pumping fluid is formed on the inner side thereof, which can accelerate the passage of the fluid and play a pumping role. Compared with the traditional magnetic pump, the present invention does not require a motor and a magnetic coupling device, and can significantly reduce the volume and weight of the magnetic pump. The permanent magnet rotor part is directly driven by the electromagnetic stator assembly, so that the fluid flows from the inside of the pumping pipe 1. The direct drive form can ensure that the power remains unchanged when the volume and mass are reduced.

[0044] As an optional embodiment, the impeller portion includes a sleeve, which is sleeved on the rotating shaft 5, and the sleeve and the rotating shaft 5 are axially limited. The outer wall of the sleeve is fixedly connected to the inner edges of a number of blades 4 arranged at equal intervals, and the outer edges of the blades 4 are fixedly connected to the inner wall of the same circular ring. The permanent magnet rotor portion is embedded in the outer wall of the circular ring, and a gap is left between the outer wall of the circular ring and the inner wall of the pumping pipe 1.

[0045] Several blades 4 arranged at equal intervals are fixed to the outside of the sleeve, and the outer edges of several blades 4 are fixed to the inner wall of the same circular ring. The permanent magnet rotor part is embedded in the outer wall of the circular ring. When the permanent magnet rotor part is driven to rotate by the electromagnetic stator assembly, each blade 4 is driven to rotate through the circular ring, forming a power for pumping fluid.

[0046] When there is only one impeller, the sleeve is fixedly connected to the rotating shaft 5, and the rotating shaft 5 is rotatably arranged on the axis of the pumping pipe 1. When there are more than one impeller, the sleeve is rotatably connected to the rotating shaft 5, and the rotating shaft 5 is fixedly connected to the axis of the pumping pipe 1.

[0047] As an optional implementation, both ends of the sleeve are respectively limited by limit rings 8 , and the limit rings 8 are coaxially fixed to the rotating shaft 5 .

[0048] The setting of the limiting ring 8 can limit the rotation position of the sleeve and prevent the sleeve from deflecting.

[0049] As an optional implementation, the permanent magnet rotor portion includes a plurality of permanent magnet pieces 3 equidistantly arranged in the circumferential direction. The permanent magnet pieces 3 are embedded in the outer wall of the ring, and the polarities of two adjacent permanent magnet pieces 3 are opposite.

[0050] As an optional embodiment, the electromagnetic stator assembly includes a plurality of electromagnetic stator parts hinged in sequence, wherein the plurality of electromagnetic stator parts are arranged around the outside of the pumping pipe 1, two adjacent electromagnetic stator parts are hinged by a connecting shaft 6, and the electromagnetic stator parts at both ends are fixed by snaps.

[0051] As an optional implementation, the electromagnetic stator part includes a plurality of electromagnetic stators 2. In the electromagnetic stator assembly composed of the plurality of electromagnetic stators 2, the polarities of two adjacent electromagnetic stators 2 are opposite, and the electromagnetic stators 2 are magnetically connected to the corresponding permanent magnet pieces 3.

[0052] The electromagnetic stator 2 at one end of one electromagnetic stator part is hinged to the electromagnetic stator 2 at one end of the other electromagnetic stator part through a connecting shaft 6;

[0053] The electromagnetic stator 2 at one end of the electromagnetic stator portion located at the end away from the connecting shaft 6 is fixed to the electromagnetic stator 2 at another end of the electromagnetic stator portion located at the end away from the connecting shaft 6 by means of a buckle.

[0054] Furthermore, a fixing plate 11 is fixedly connected to one end of the electromagnetic stator part away from the connecting shaft 6. After the two electromagnetic stator parts are combined into a circle, the two fixing plates 11 are brought close to each other, and bolts are passed through the two fixing plates 11 and fixed with nuts to achieve the fixation of the electromagnetic stator assembly and the pumping pipe 1.

[0055] The electromagnetic stator part can be set to two or more, and two adjacent electromagnetic stator parts are hinged by the connecting shaft 6. The end of the electromagnetic stator part located at the end away from the connecting shaft 6 is fixed to the fixed plate 11, and can eventually be enclosed into a ring to embrace the outside of the pumping pipe 1.

[0056] An electromagnetic stator part is composed of multiple electromagnetic stators 2, two electromagnetic stator parts are encircled on the outside of the pumping pipe 1, the two electromagnetic stator parts are hinged by a connecting shaft 6, and the two electromagnetic stator parts are fixed by buckles. When in use, the two electromagnetic stator parts are first unfolded, sleeved on the outside of the pumping pipe 1, and the two electromagnetic stator parts are encircled on the outside of the pumping pipe 1. After the two electromagnetic stator parts are fixed by buckles, an electromagnetic stator assembly fixed outside the pumping pipe 1 is formed.

[0057] On the one hand, the electromagnetic stator assembly and the pumping pipe 1 can be fixed by magnetic attraction through the generated magnetic force, and on the other hand, the electromagnetic stator assembly and the pumping pipe 1 are prevented from moving by friction.

[0058] The polarities of two adjacent electromagnetic stators 2 are opposite. By being electrically connected to a control power supply, the polarity of the electromagnetic stator 2 is switched between the N pole and the S pole, and the corresponding permanent magnet piece 3 is attracted to achieve the purpose of driving the blade 4 to rotate.

[0059] The control power supply includes a control board and a power supply, and the control board can adopt a motor drive board.

[0060] Furthermore, an electric regulator is also connected, and the electric regulator is used to adjust the rotation speed.

[0061] ESC, the full name of which is electronic speed regulator, realizes speed regulation by connecting to the control board.

[0062] As an optional implementation, when there are no less than two impeller parts, the rotation directions of two adjacent impeller parts are opposite.

[0063] As an optional implementation, when there are no less than two impeller parts, the rotation directions of two adjacent impeller parts are the same.

[0064] The number of electromagnetic stator assemblies matches the number of impeller parts.

[0065] The changing direction of the magnetic poles of two adjacent electromagnetic stator assemblies can be changed by controlling the power supply, thereby making the rotation directions of two adjacent impeller parts the same or opposite, thereby achieving the purpose of improving the pumping efficiency.

[0066] As an optional implementation, a spacer ring 7 is provided between two adjacent electromagnetic stator parts, and the spacer ring 7 is coaxially sleeved on the outer side of the pumping pipe 1 .

[0067] The provision of the spacer ring 7 can prevent two adjacent electromagnetic stator assemblies from attracting or repelling each other and causing displacement when generating a magnetic field.

[0068] As an optional implementation, the pumping pipe 1 includes a pipe wall 101 , and threads 102 for fixing to a pipeline are respectively formed at both ends of the pipe wall 101 .

[0069] Threads 102 for fixing with pipelines are respectively provided at both ends of the pipe wall 101. The ports of the pipelines that need to pump fluid are provided with screw ports, and the two ends of the pumping pipe 1 are respectively threadedly connected with the corresponding ports of the pipelines to realize the installation of the device.

[0070] Embodiment 2:

[0071] refer to Figure 5 The difference between this embodiment and embodiment 1 is that the shaft sleeve is axially connected to the rotating shaft 5, the rotation directions of two adjacent impeller parts are the same, the two ends of the pumping pipe 1 are respectively fixed with side covers 10, the rotating shaft 5 is rotatably connected to the pumping pipe 1, and one end of the rotating shaft 5 passes through the side cover 10 and is axially connected to the impeller fan 9.

[0072] When the shaft sleeve is axially connected to the rotating shaft 5, the two adjacent impeller parts rotate in the same direction, and the permanent magnet rotor part is driven by the electromagnetic stator assembly to drive the impeller part to rotate. The rotating shaft 5 is rotated by the shaft sleeve being axially connected to the rotating shaft 5. One end of the rotating shaft 5 passes through the side cover 10 and is axially connected to the impeller fan 9. Then, the device is used as a motor to drive the impeller fan 9 to rotate, and then the fluid is pumped through the impeller fan 9, thereby forming a working mode of the present invention when used as a motor.

[0073] When the device is used as a motor, the speed can also be adjusted by connecting it to an electric regulator.

[0074] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0075] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A magnetic pump in which a motor and a magnetic coupling device are integrated, characterized in that: include: A pumping tube (1) having a channel therein for a fluid to pass through; A rotating shaft (5) is coaxially arranged on the inner side of the pumping pipe (1); An impeller part, coaxially arranged on the rotating shaft (5), the impeller part being rotatably arranged, the impeller part being provided with at least one impeller, and the impeller part being provided with a channel for fluid to pass through; A permanent magnet rotor portion, embedded in the outer wall of the impeller portion; An electromagnetic stator assembly is drivingly connected to the permanent magnet rotor part, the electromagnetic stator assembly is used to enable the permanent magnet rotor part to drive the impeller part to rotate, and the electromagnetic stator assembly is fixedly connected to the outer wall of the pumping pipe (1).

2. A magnetic pump in which a motor and a magnetic coupling device are integrated according to claim 1, characterized in that: The impeller portion comprises a shaft sleeve, the shaft sleeve is sleeved on the rotating shaft (5), the shaft sleeve and the rotating shaft (5) are axially limited, the outer wall of the shaft sleeve is fixedly connected to the inner edges of a plurality of blades (4) arranged at equal intervals, the outer edges of the plurality of blades (4) are fixedly connected to the inner wall of the same circular ring, the permanent magnet rotor portion is embedded in the outer wall of the circular ring, and a gap is left between the outer wall of the circular ring and the inner wall of the pumping pipe (1).

3. A magnetic pump in which a motor and a magnetic coupling device are integrated according to claim 2, characterized in that: The two ends of the shaft sleeve are respectively limited by limiting rings (8), and the limiting rings (8) are coaxially fixed to the rotating shaft (5).

4. A magnetic pump incorporating a motor and a magnetic coupling device as claimed in claim 2, characterized in that: The permanent magnet rotor part comprises a plurality of permanent magnet pieces (3) arranged at equal intervals in the circumferential direction, the permanent magnet pieces (3) being embedded in the outer wall of the circular ring, and the polarities of two adjacent permanent magnet pieces (3) being opposite.

5. A magnetic pump in which a motor and a magnetic coupling device are integrated according to claim 4, characterized in that: The electromagnetic stator assembly comprises a plurality of electromagnetic stator parts hinged in sequence, wherein the plurality of electromagnetic stator parts are arranged around the outside of the pumping pipe (1), two adjacent electromagnetic stator parts are hinged via a connecting shaft (6), and the electromagnetic stator parts at both ends are fixed via buckles.

6. A magnetic pump in which a motor and a magnetic coupling device are integrated according to claim 5, characterized in that: The electromagnetic stator part comprises a plurality of electromagnetic stators (2). In the electromagnetic stator assembly composed of the plurality of electromagnetic stators (2), the polarities of two adjacent electromagnetic stators (2) are opposite, and the electromagnetic stators (2) are magnetically connected to the corresponding permanent magnet sheets (3); The electromagnetic stator (2) at one end of one of the electromagnetic stator parts is hingedly connected to the electromagnetic stator (2) at one end of the other electromagnetic stator part via the connecting shaft (6); The electromagnetic stator (2) at one end of the electromagnetic stator portion located at the end away from the connecting shaft (6) and the electromagnetic stator (2) at another end of the electromagnetic stator portion located at the end away from the connecting shaft (6) are fixed by means of the buckle.

7. The magnetic pump in which the motor and the magnetic coupling device are integrated according to claim 1, characterized in that: When there are at least two impeller parts, the rotation directions of two adjacent impeller parts are opposite.

8. The magnetic pump in which the motor and the magnetic coupling device are integrated as claimed in claim 1, characterized in that: When there are at least two impeller parts, the rotation directions of two adjacent impeller parts are the same.

9. The magnetic pump in which the motor and the magnetic coupling device are integrated as claimed in claim 1, characterized in that: A spacer ring (7) is provided between two adjacent electromagnetic stator parts, and the spacer ring (7) is coaxially sleeved on the outside of the pumping pipe (1).

10. The magnetic pump in which the motor and the magnetic coupling device are integrated as claimed in claim 1, characterized in that: The pumping pipe (1) comprises a pipe wall (101), and threads (102) for fixing to a pipeline are respectively provided at both ends of the pipe wall (101).

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