A magnetic pump with low energy consumption and capable of conveying granular materials

Abstract

The present application relates to the field of pump technology, and in particular to a low-energy magnetic pump capable of conveying particulate materials, comprising a pump body, one end of which is provided with a feed inlet, and the other end of which is provided with an impeller; a connecting frame is provided at the end of the pump body close to the impeller, and an external magnet and an internal magnet are provided in the connecting frame, and a pump shaft is inserted between the impeller and the internal magnet; a motor is provided at the end of the connecting frame away from the pump body, and the driving shaft of the motor extends into the connecting frame and is connected to the external magnet; a ball bearing is provided along the circumference of the pump shaft, and the ball bearing is connected to the pump shaft in a ball-type manner, and a bearing seat is provided at the bottom of the ball bearing, and the bearing seat provides stable support for the ball bearing. The purpose of the present application is to effectively solve the problem that traditional magnetic pumps have high energy consumption and are inconvenient to convey particulate materials during use.

Description

Technical Field

[0001] The present application relates to the field of pump technology, and in particular to a magnetic pump with low energy consumption and capable of conveying granular materials. Background Art

[0002] A magnetic pump is a type of pump that uses magnetic field induction to achieve contactless transmission of power to drive the pump shaft to rotate. It is mainly composed of three parts: a pump body, a magnetic drive, and a motor. The characteristic of a magnetic pump is that the power is transmitted between the pump shaft and the motor shaft through magnetic force, achieving a completely sealed state, thereby avoiding the leakage problem that may occur in traditional mechanical seal pumps.

[0003] In the related technology, there is mostly sliding friction between the bearings and the pump shaft on traditional magnetic pumps. The sliding friction causes large resistance between the bearings and the pump shaft, which in turn causes large losses between the bearings and the pump shaft. When the bearings and the pump shaft are idling, there will be continuous wear and heat between the bearings and the pump shaft, which will cause damage to the bearings and the pump shaft. At the same time, when the magnetic pump conveys materials with particles, the particles are easily blocked between the bearings and the pump shaft, further increasing the wear between the bearings and the pump shaft.

[0004] Therefore, traditional magnetic pumps not only consume a lot of energy, but are also inconvenient for conveying materials with particles. Utility Model Content

[0005] The present application provides a magnetic pump with low energy consumption and capable of conveying granular materials, with the aim of effectively solving the problem that traditional magnetic pumps have high energy consumption and are inconvenient for conveying granular materials during use.

[0006] The present application provides a magnetic pump with low energy consumption and capable of conveying granular materials, which adopts the following technical solution:

[0007] A low-energy magnetic pump capable of conveying granular materials comprises a pump body, one end of the pump body is provided with a feed inlet, and the other end of the pump body is provided with an impeller; a connecting frame is provided at one end of the pump body close to the impeller, an external magnet and an internal magnet are provided in the connecting frame, and a pump shaft is inserted between the impeller and the internal magnet; a motor is provided at one end of the connecting frame away from the pump body, and a driving shaft of the motor extends into the connecting frame and is connected to the external magnet;

[0008] A ball bearing is sleeved on the pump shaft along its circumference, the ball bearing and the pump shaft are connected in a ball-type manner, a bearing seat is installed at the bottom of the ball bearing, and the bearing seat provides stable support for the ball bearing.

[0009] By adopting the above technical solution, when it is used specifically, when the motor drives the outer magnetic rotor to rotate through its drive shaft, due to the effect of the magnetic field, the inner magnetic rotor will rotate synchronously with the external magnet, thereby driving the pump shaft to rotate, and then the impeller at the other end of the pump shaft will also rotate accordingly. While the impeller rotates, it sucks the liquid into the pump body from the opening of the pump body and discharges it after being pressurized.

[0010] With this setting, during the operation of the magnetic pump, the contact between the bearing and the pump shaft is rolling friction due to the use of ball bearings. Compared with the sliding friction between the bearing and the pump shaft in a traditional magnetic pump, the rolling friction resistance is small, which reduces the loss between the bearing and the pump shaft, thereby helping to reduce the energy consumption between the bearing and the pump shaft.

[0011] Preferably, a centrifuge tube is injection molded on one side of the pump body, a discharge port is opened on the top of the centrifuge tube, and the discharge port is communicated with the feed port.

[0012] By adopting the above technical solution, when the magnetic pump is used, when conveying materials with particles, the impeller sucks the materials into the pump body from the inlet while rotating. After the pump body is pressurized, the particles in the material are separated and discharged to the outside of the pump body from the outlet of the centrifuge tube. The centrifuge tube can effectively prevent the particles in the material from entering between the ball bearing and the pump shaft, so that the magnetic pump can convey the granular materials.

[0013] Preferably, two retaining rings are sleeved on the pump shaft along its circumference, and the two retaining rings are distributed to the left and right sides of the ball bearing.

[0014] By adopting the above technical solution, when the magnetic pump conveys granular materials, the retaining ring can be used to further resist the particles in the material, further preventing the particles in the material from entering between the ball bearing and the pump shaft, thereby effectively ensuring that the ball bearing and the pump shaft can be used stably and continuously.

[0015] Preferably, a thrust ring is also sleeved on the pump shaft along its circumference, the bottom of the thrust ring is connected to the bearing seat, and the thrust ring is used to limit the ball bearing.

[0016] By adopting the above technical solution, the bearing seat is used to enhance the stability of the thrust ring installed on the pump shaft, and the thrust ring is used to limit the ball bearing, which is beneficial to ensure the stability of the ball bearing and the pump shaft during rotation.

[0017] Preferably, the number of thrust rings is two, and the two thrust rings are distributed on the left and right sides of the two retaining rings, and respectively press against the two retaining rings.

[0018] By adopting the above technical solution, two thrust rings are provided, which is beneficial to further ensure the stability of the limiting of the retaining ring and the ball bearing.

[0019] Preferably, an isolation sleeve is provided between the external magnet and the internal magnet.

[0020] By adopting the above technical solution, the external magnet and the internal magnet are independently separated by an isolation sleeve, so that the pump shaft, ball bearing, retaining ring and thrust ring are placed in independent working chambers, effectively avoiding the influence of the external environment on the working process of the ball bearing and the pump shaft, which is beneficial to ensure the stability of the ball bearing and the pump shaft during operation.

[0021] Preferably, the ball bearing is made of ceramic bearing.

[0022] By adopting the above technical solution, the ceramic bearing has its own lubrication effect, which means that there is no need to add lubricant between the ball bearing and the pump shaft during long-term rotation, and the ball bearing and the pump shaft can run idle, thereby increasing the fault tolerance of the magnetic pump during operation and making it more convenient to use.

[0023] Preferably, a positioning step is provided at one end of the connecting frame close to the pump body.

[0024] By adopting the above technical solution, when assembling the connecting frame to the pump body, the connecting frame can be quickly installed on the pump body through the positioning step, and then the connecting frame can be fastened to the pump body through the corresponding fastening bolts, thereby making the entire assembly process of the magnetic pump faster and more efficient.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. During specific use, when the motor drives the outer magnetic rotor to rotate through its drive shaft, due to the effect of the magnetic field, the inner magnetic rotor will rotate synchronously with the external magnet, thereby driving the pump shaft to rotate, and then the impeller at the other end of the pump shaft will also rotate accordingly. While the impeller rotates, it sucks the liquid into the pump body from the opening of the pump body and discharges it after pressurization.

[0027] In this setting, during the operation of the magnetic pump, the contact between the bearing and the pump shaft is rolling friction due to the use of ball bearings. Compared with the sliding friction between the bearing and the pump shaft in the traditional magnetic pump, the rolling friction resistance is small, which makes the loss between the bearing and the pump shaft smaller, thereby helping to reduce the energy consumption between the bearing and the pump shaft;

[0028] 2. When the magnetic pump conveys granular materials, the retaining ring can be used to further block the particles in the material, further preventing the particles in the material from entering between the ball bearing and the pump shaft, thereby effectively ensuring that the ball bearing and the pump shaft can be used stably and continuously;

[0029] 3. Use an isolation sleeve to independently separate the external magnet and the internal magnet, so that the pump shaft, ball bearing, retaining ring and thrust ring are in independent working chambers, effectively avoiding the influence of the external environment on the working process of the ball bearing and the pump shaft, which is beneficial to ensure the stability of the ball bearing and the pump shaft during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0031] Figure 2 It is a structural schematic diagram of the embodiment of the present application specifically showing the positional relationship between the impeller, the external magnet, the internal magnet, the pump shaft, the isolation sleeve and the positioning step;

[0032] Figure 3 yes Figure 2 A magnified schematic diagram of center A.

[0033] Figure numerals: 1. pump body; 2. inlet; 3. impeller; 4. connecting frame; 5. external magnet; 6. internal magnet; 7. pump shaft; 8. motor; 9. ball bearing; 10. bearing seat; 11. centrifuge tube; 12. outlet; 13. retaining ring; 14. thrust ring; 15. isolation sleeve; 16. positioning step. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0035] Example:

[0036] The present application discloses a magnetic pump with low energy consumption and capable of conveying granular materials. Figure 1 and Figure 2 , comprising a pump body 1, a feed port 2 is provided at one end of the pump body 1, and an impeller 3 is installed at the other end of the pump body 1. A connecting frame 4 is installed horizontally at the end of the pump body 1 close to the impeller 3, an external magnet 5 and an internal magnet 6 are arranged inside the connecting frame 4, and a pump shaft 7 is inserted horizontally between the impeller 3 and the internal magnet 6. A motor 8 is installed at the end of the connecting frame 4 away from the pump body 1, and the drive shaft of the motor 8 extends into the connecting frame 4 and is connected to the external magnet 5.

[0037] Reference Figure 2 and Figure 3A ball bearing 9 is sleeved on the pump shaft 7 along its circumferential side. The ball bearing 9 and the pump shaft 7 are connected in a ball-type manner. A corresponding bearing seat 10 is installed at the bottom of the ball bearing 9 to stably support the ball bearing 9.

[0038] During specific use, when the motor 8 drives the external magnet 5 rotor to rotate through its drive shaft, due to the effect of the magnetic field, the internal magnet 6 rotor will rotate synchronously with the external magnet 5, thereby driving the pump shaft 7 to rotate, and then the impeller 3 at the other end of the pump shaft 7 will also rotate accordingly. While rotating, the impeller 3 sucks the liquid into the pump body 1 from the opening of the pump body 1 and discharges it after pressurization.

[0039] With this arrangement, during the operation of the magnetic pump, the contact between the bearing and the pump shaft 7 is rolling friction due to the use of the ball bearing 9. Compared with the sliding friction between the bearing and the pump shaft 7 in a traditional magnetic pump, the rolling friction resistance is small, which reduces the loss between the bearing and the pump shaft 7, thereby helping to reduce the energy consumption between the bearing and the pump shaft 7.

[0040] In this embodiment, the material of the ball bearing 9 can be a ceramic bearing or an alloy bearing. Both the ceramic bearing and the alloy bearing have a self-lubricating effect, which means that there is no need to add lubricant between the ball bearing 9 and the pump shaft 7 during long-term rotation, and the ball bearing 9 and the pump shaft 7 can run idle, thereby increasing the fault tolerance of the magnetic pump during operation and making it more convenient to use.

[0041] Further, refer to Figure 1 and Figure 2 A centrifuge tube 11 is injection molded on one side of the pump body 1 , a discharge port 12 is opened at the top of the centrifuge tube 11 , and the discharge port 12 of the centrifuge tube 11 is connected to the feed port 2 of the pump body 1 .

[0042] During specific use, when the magnetic pump conveys materials with particles, the impeller 3 sucks the material into the pump body 1 from the feed port 2 of the pump body 1 while rotating. After the pump body 1 is pressurized, the particles in the material are separated and discharged to the outside of the pump body 1 from the discharge port 12 of the centrifuge tube 11. The centrifuge tube 11 can effectively prevent the particles in the material from entering between the ball bearing 9 and the pump shaft 7, thereby enabling the magnetic pump to convey the granular material.

[0043] Further, refer to Figure 2 and Figure 3 Two retaining rings 13 are sleeved on the pump shaft 7 along its circumference, and the two retaining rings 13 are distributed on the left and right sides of the ball bearing 9. When the magnetic pump conveys granular materials, the retaining rings 13 can further resist the particles in the materials, further preventing the particles in the materials from entering between the ball bearing 9 and the pump shaft 7, thereby effectively ensuring that the ball bearing 9 and the pump shaft 7 can be used stably and continuously.

[0044] Further, refer to Figure 2 and Figure 3 Two thrust rings 14 are also sleeved on the pump shaft 7 along its circumference, and the bottoms of the two thrust rings 14 are connected to the bearing seat 10, and the bearing seat 10 is used to strengthen the stability of the thrust rings 14 installed on the pump shaft 7. The two thrust rings 14 are distributed to the side where the two retaining rings 13 are away from each other, and the two thrust rings 14 are respectively pressed against the two retaining rings 13. The two thrust rings 14 can limit the installation position of the two retaining rings 13, and then limit the ball bearing 9, which is conducive to ensuring the stability of the ball bearing 9 and the pump shaft 7 during the rotation process.

[0045] Further, refer to Figure 2 and Figure 3 An isolation sleeve 15 is provided between the external magnet 5 and the internal magnet 6, and the isolation sleeve 15 is used to independently separate the external magnet 5 and the internal magnet 6, so that the pump shaft 7, the ball bearing 9, the retaining ring 13 and the thrust ring 14 are in independent working chambers, which effectively avoids the influence of the external environment on the working process of the ball bearing 9 and the pump shaft 7, and is conducive to ensuring the stability of the ball bearing 9 and the pump shaft 7 during the working process.

[0046] Further, refer to Figure 2 and Figure 3 A positioning step 16 is provided at one end of the connecting frame 4 close to the pump body 1. Specifically, when the connecting frame 4 is assembled to the pump body 1, the connecting frame 4 can be quickly installed on the pump body 1 through the positioning step 16, and then the connecting frame 4 is fastened to the pump body 1 through the corresponding fastening bolts, thereby making the entire assembly process of the magnetic pump faster and more efficient.

[0047] The implementation principle of a low-energy-consumption magnetic pump capable of conveying granular materials in the embodiment of the present application is as follows:

[0048] During specific use, when the motor 8 drives the external magnet 5 rotor to rotate through its drive shaft, due to the effect of the magnetic field, the internal magnet 6 rotor will rotate synchronously with the external magnet 5, thereby driving the pump shaft 7 to rotate, and then the impeller 3 at the other end of the pump shaft 7 will also rotate accordingly. While rotating, the impeller 3 sucks the liquid into the pump body 1 from the opening of the pump body 1 and discharges it after pressurization.

[0049] With this arrangement, during the operation of the magnetic pump, the contact between the bearing and the pump shaft 7 is rolling friction due to the use of the ball bearing 9. Compared with the sliding friction between the bearing and the pump shaft 7 in a traditional magnetic pump, the rolling friction resistance is small, which reduces the loss between the bearing and the pump shaft 7, thereby helping to reduce the energy consumption between the bearing and the pump shaft 7.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A low energy consumption magnetic pump capable of conveying granular materials, characterized in that: The invention comprises a pump body (1), wherein one end of the pump body (1) is provided with a feed inlet (2), and the other end of the pump body (1) is provided with an impeller (3); a connecting frame (4) is provided at the end of the pump body (1) close to the impeller (3), an external magnet (5) and an internal magnet (6) are provided in the connecting frame (4), and a pump shaft (7) is inserted between the impeller (3) and the internal magnet (6); a motor (8) is provided at the end of the connecting frame (4) away from the pump body (1), and a drive shaft of the motor (8) extends into the connecting frame (4) and is connected to the external magnet (5); A ball bearing (9) is sleeved on the pump shaft (7) along its circumferential side, the ball bearing (9) and the pump shaft (7) are connected in a ball-type manner, a bearing seat (10) is installed at the bottom of the ball bearing (9), and the bearing seat (10) stably supports the ball bearing (9); A centrifuge tube (11) is injection molded on one side of the pump body (1), a discharge port (12) is provided at the top of the centrifuge tube (11), and the discharge port (12) is connected to the feed port (2); Two retaining rings (13) are sleeved on the pump shaft (7) along its circumference, and the two retaining rings (13) are distributed on the left and right sides of the ball bearing (9); The pump shaft (7) is also provided with a thrust ring (14) along its circumferential side, the bottom of the thrust ring (14) is connected to the bearing seat (10), and the thrust ring (14) is used to limit the position of the ball bearing (9).

2. A low energy consumption magnetic pump capable of conveying granular materials according to claim 1, characterized in that: The thrust rings (14) are provided in two numbers, and the two thrust rings (14) are distributed on the left and right sides of the two retaining rings (13), and respectively press against the two retaining rings (13).

3. A low energy consumption magnetic pump capable of conveying granular materials according to claim 1, characterized in that: An isolation sleeve (15) is provided between the external magnet (5) and the internal magnet (6).

4. A low energy consumption magnetic pump capable of conveying granular materials according to claim 1, characterized in that: The material of the ball bearing (9) is a ceramic bearing.

5. A low energy consumption magnetic pump capable of conveying granular materials according to claim 1, characterized in that: A positioning step (16) is provided at one end of the connecting frame (4) close to the pump body (1).

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