Magnetic drive pump and anti-blocking mechanism thereof

Abstract

The invention discloses a magnetic drive pump and an anti-blocking mechanism thereof, and belongs to the technical field of pumps.The magnetic drive pump comprises a motor, a driving bin is installed at one end of the motor through a first connecting flange, and a pump body bin is installed at the end, away from the motor, of the driving bin through a second connecting flange; a top cover mechanism is mounted at the end, away from the driving bin, of the pump body bin through a third connecting flange, and an outer magnetic rotor is arranged in the driving bin. The linkage mechanism is arranged between the transmission mechanism and the inner magnetic rotor, when the motor stops rotating immediately, the transmission connection between the inner magnetic rotor and the transmission mechanism is quickly lost, and at the moment, even if a medium in a pipeline at the input end of the magnetic drive pump impacts an impeller of the magnetic drive pump due to inertia and pushes the impeller to continue to rotate, the transmission connection between the inner magnetic rotor and the transmission mechanism is stopped; when the magnetic drive pump is started, the inner magnetic rotor is not driven to rotate, the outer magnetic rotor and the output shaft of the motor are not driven to rotate, damage to related parts of the motor is avoided, and the starting load of the motor can be reduced when the magnetic drive pump is just started.

Description

Technical Field

[0001] The invention belongs to the technical field of pumps, and in particular relates to a magnetic pump and an anti-blocking mechanism thereof. Background Art

[0002] The magnetic pump is a new product that applies the working principle of permanent magnetic coupling to the centrifugal pump. It has reasonable design, advanced technology, and has the characteristics of full sealing, no leakage, and corrosion resistance. The magnetic transmission of the magnetic pump consists of an outer magnetic rotor, an inner magnetic rotor and a non-magnetic isolation sleeve. When the motor drives the outer magnetic rotor to rotate, the magnetic field can penetrate the air gap and non-magnetic materials, driving the inner magnetic rotor connected to the impeller to rotate synchronously, realizing contactless synchronous transmission of power, and converting the dynamic sealing structure that is prone to leakage into a static sealing structure with zero leakage.

[0003] The existing magnetic pump is usually driven by the inner magnetic rotor to directly drive the pump shaft to rotate. When the magnetic pump is started or the medium delivery volume is increased, the torque demand of the magnetic pump motor is relatively large, which makes the application range of the magnetic pump very limited. When it is necessary to deliver a viscous medium, the magnetic pump also needs to replace the motor with a larger torque; and when the magnetic pump stops immediately, the medium in the pipeline at the input end of the magnetic pump will impact the impeller of the magnetic pump due to inertia and push the impeller to continue to rotate, and the torque on the pump shaft is transmitted to the motor through the inner magnetic rotor and the outer magnetic rotor, which may cause damage to the magnetic pump motor shaft and internal parts of the motor; at the same time, even if a sealing ring or oil seal is added to the seal of the magnetic pump shaft, after the impeller brings the conveying medium into the pump body, the pressure in the pump body increases, which may cause a small amount of medium to pass through the gap between the seal and the pump shaft and enter the inner magnetic rotor, which will not only affect the stable rotation of the inner magnetic rotor, but also increase the energy consumption of the magnetic pump motor. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a magnetic pump and an anti-blocking mechanism thereof.

[0005] The technical solution adopted to solve the above technical problems is: a magnetic pump, including a motor, a driving chamber is installed at one end of the motor through a first connecting flange, a pump body chamber is installed at the end of the driving chamber away from the motor through a second connecting flange, and a top cover mechanism is installed at the end of the pump body chamber away from the driving chamber through a third connecting flange, an external magnetic rotor is arranged inside the driving chamber, the output shaft of the motor drives the external magnetic rotor to rotate through the driving mechanism, a boosting mechanism is arranged inside the external magnetic rotor, and an internal magnetic rotor is arranged inside the boosting mechanism, an impeller is arranged at the end of the pump body chamber away from the motor, a transmission mechanism that drives the impeller to rotate through the connecting mechanism is arranged at the other end of the pump body chamber, a linkage mechanism that provides driving force for the transmission mechanism is arranged at the end of the inner magnetic rotor away from the motor, a feed port is arranged on the outside of the pump body chamber, and a control panel is arranged on the top of the driving chamber.

[0006] Furthermore, the top cover mechanism includes a sealing cover connected to the pump body bin through a third connecting flange, a discharge port is provided at a middle position of the sealing cover away from one end of the pump body bin, a first bearing is installed at a center position of the sealing cover near one end of the discharge port, and a guide tube that cooperates with the impeller is installed on the inner ring of the first bearing.

[0007] Through the above technical solution, after the sealing cover is fixedly connected to the pump body compartment through the third connecting flange, one end of the guide tube of the inner ring of the first bearing is against the center position of one end of the impeller, and the connecting mechanism can be used to stably connect the impeller to the pump shaft, and after the sealing cover is removed, there is no need to unscrew the fixing screws to directly remove the impeller from the pump shaft.

[0008] Furthermore, the driving mechanism includes a connecting plug located at the end of the motor output shaft, a second bearing is installed at the end of the inner wall of the driving bin close to the motor, and a rotating disk is installed on the inner ring of the second bearing, an inner sleeve ring is installed on the side of the rotating disk away from the motor, a third bearing adapted to the external magnetic rotor is installed at the end of the inner wall of the driving bin away from the motor, a connecting slot adapted to the connecting plug is installed at the center position of one end of the external magnetic rotor close to the motor, and an outer sleeve ring that cooperates with the inner sleeve ring is installed at the end of the external magnetic rotor close to the motor.

[0009] Through the above technical solution, after the drive compartment is fixedly connected to the motor housing through the first connecting flange, the output shaft of the motor passes through the hole in the center of the rotating disk and is inserted into the connecting slot at one end of the outer magnetic rotor. After the outer magnetic rotor is inserted into the drive compartment, the outer ring at one end of the outer magnetic rotor is sleeved on the outside of the inner ring, thereby improving the stability of the external magnetic rotor during rotation. The third bearing can also further improve the stability of the rotation of the external magnetic rotor.

[0010] Furthermore, the boosting mechanism includes a separating ring located between two groups of flange plates of the second connecting flange, a separating cabin fixedly connected to the separating ring is arranged inside the external magnetic rotor, and air vents connected to the interior of the separating cabin are symmetrically opened on the outer ring of the separating ring, a boosting pump is installed on the outer side of the driving compartment, and the output end of the boosting pump is connected to the external interface of one group of air holes, and an air pressure sensor is installed on the external interface of another group of air holes.

[0011] Through the above technical scheme, the outer magnetic rotor and the inner magnetic rotor are completely separated by the separation ring and the separation chamber, and the outer magnetic rotor will not be affected in driving the inner magnetic rotor to rotate. At the same time, the separation ring and the separation chamber cooperate with the pump body chamber and the leak-proof disk to form a complete cavity, and only the gap at the connection between the pump shaft and the leak-proof disk is connected to the space outside the leak-proof disk. Under the premise of ensuring that the pump shaft can stably drive the impeller to rotate, the booster pump is controlled to cooperate with the vent to inject air into the cavity to increase the pressure in the cavity, forcing the conveying medium in the pump body chamber to be unable to enter the cavity through the gap between the pump shaft and the leak-proof disk, and the air pressure in the cavity is monitored in real time by the air pressure sensor.

[0012] Furthermore, the linkage mechanism includes a mounting plate located at an end of the inner magnetic rotor away from the motor, six groups of connecting grooves are evenly opened on the outer side of the mounting plate, a slide rod is installed at the middle position inside the connecting groove, and the outer side of the slide rod is sleeved with a connecting slider matched with the connecting groove, a driving column is installed on the outer side of the connecting slider, and a reset spring is sleeved on the outer side of the slide rod, and one end of the reset spring is fixedly connected to one end of the connecting groove near the center of the mounting plate, and the other end of the reset spring is fixedly connected to the connecting slider, a fourth bearing is installed on the inner wall of the pump body bin close to the motor, and a rotating bin is installed on the inner ring of the fourth bearing, and six groups of driven blocks that cooperate with the driving column are evenly installed on the inner wall of the rotating bin.

[0013] Through the above technical solution, in the process of the outer magnetic rotor driving the inner magnetic rotor to gradually speed up the rotation, the centrifugal force on the connecting slider and the driving column gradually increases, forcing the connecting slider to slide on the slide rod toward the edge of the mounting disk, and the reset spring is stretched by the force. When the driving column on the outside of the connecting slider presses against the driven block in the rotating bin, the inner magnetic rotor will drive the rotating bin and the first pinion fixedly connected to the rotating bin to rotate synchronously. When the outer magnetic rotor drives the inner magnetic rotor to stop rotating immediately, the tension of the reset spring pulls the connecting slider to slide quickly toward the center of the mounting disk, so that the driving column no longer contacts the driven block, and the inner magnetic rotor loses the transmission connection with the first pinion.

[0014] Furthermore, the transmission mechanism includes a fixed ring located at the middle position inside the pump body bin, a fixed disk and a leak-proof disk are respectively provided at both ends of the fixed ring, a fifth bearing is installed at the center position of the fixed disk, and the inner ring of the fifth bearing is installed with a pump shaft, the leak-proof disk is sleeved on the outside of the pump shaft, a first small gear is installed at the center position of the rotating bin close to one end of the fixed disk, a first large gear meshing with the first small gear is provided at a non-center position of the fixed disk close to one end of the rotating bin, and one end of the rotating shaft of the first large gear passes through the fixed disk and is installed with a second small gear, a second large gear meshing with the second small gear is installed at one end of the outer side of the pump shaft close to the fixed disk, and an oil seal is provided at the center position of the leak-proof disk.

[0015] Through the above technical solution, when the inner magnetic rotor drives the first small gear to rotate through the linkage mechanism, the first small gear will drive the second large gear to rotate through the first large gear and the second small gear, and the second large gear will drive the pump shaft to rotate synchronously, so that the speed of the pump shaft is lower than the speed of the inner magnetic rotor, thereby reducing the torque required for the inner magnetic rotor to drive the pump shaft to rotate, and thus reducing the torque required for the motor to drive the impeller.

[0016] Furthermore, the connecting mechanism includes two groups of keyways located on the outside of the pump shaft, a connecting seat that cooperates with the pump shaft is installed at the center position of the impeller near one end of the motor, and two groups of connecting keys that are compatible with the keyways are arranged inside the connecting seat.

[0017] Through the above technical solution, after the top end of the pump shaft is inserted into the interior of the connecting seat, the connecting key in the connecting seat is inserted into the keyway on the outside of the pump shaft, and then the impeller can be stably fixed on the outside of the pump shaft in conjunction with the top cover mechanism without affecting the stable rotation of the impeller driven by the pump shaft. The impeller can be removed from the pump shaft by only removing the top cover mechanism, which is convenient for the user to inspect and maintain the impeller.

[0018] Furthermore, three groups of fixing screw holes are evenly arranged at the edge positions of the fixing ring, the fixing plate and the leakproof plate, and the fixing ring, the fixing plate and the leakproof plate are fixedly connected to the fixing screw holes by fixing screws.

[0019] Through the above technical scheme, the fixing ring and the leak-proof disk can be fixedly connected to the fixing disk through the fixing screws and the fixing screw holes, and the fixing disk is fixedly connected to the inner wall of the pump body chamber, so that the fixing ring and the leak-proof disk can be fixed inside the pump body chamber, thereby ensuring the stability of the transmission of the first large gear, the second small gear and the second large gear, and when it is necessary to inspect and maintain the internal parts of the pump body chamber, the fixing ring and the leak-proof disk can be separated from the fixing disk by unscrewing the three sets of fixing screws, thereby exposing the second small gear and the second large gear for easy inspection.

[0020] Furthermore, a strip-shaped through groove matched with the first large gear is opened at one end of the outer side of the pump body compartment close to the driving compartment, and a protection compartment matched with the first large gear is installed on the outer side of the strip-shaped through groove.

[0021] Through the above technical solution, a part of the first large gear passes through the strip-shaped through groove and extends to the outside of the pump body compartment, and then the protection compartment can be used to protect the part of the first large gear exposed outside the pump body compartment.

[0022] Furthermore, an anti-clogging mechanism of a magnetic pump comprises a fourth connecting flange located at the top end of a feed port, a filter assembly is installed on the feed port through the fourth connecting flange, the filter assembly comprises a filter cartridge, a truncated cone filter screen is arranged inside the filter cartridge, a bottom ring is installed at the bottom end of the truncated cone filter screen, and a limiting frame adapted to the filter cartridge is installed at the top end of the truncated cone filter screen.

[0023] Through the above technical solution, before the conveying medium enters the pump body compartment, the medium will first pass through the inside of the filter cartridge. During the process, the truncated cone filter can filter and intercept impurities or larger particles in the medium. The intercepted impurities or larger particles will gradually gather at the bottom of the cavity between the filter cartridge and the truncated cone filter along the guidance of the surface of the truncated cone filter, which will not affect the continuous filtering of the conveying medium by the truncated cone filter. The fourth connecting flange is disassembled regularly, and the truncated cone filter in the filter cartridge is taken out and cleaned.

[0024] The beneficial effects of the present invention are as follows: (1) In the present invention, the inner magnetic rotor and the impeller are no longer connected only by a set of rotating shafts, but the transmission mechanism is used to reduce the speed provided by the inner magnetic rotor and then drive the impeller to rotate. In this way, a greater torque can be provided to the impeller, thereby improving the application range of the magnetic pump; (2) In the present invention, a linkage mechanism is provided between the transmission mechanism and the inner magnetic rotor. When the motor cooperates with the outer magnetic rotor to drive the inner magnetic rotor to stop rotating immediately, the inner magnetic rotor and the transmission mechanism quickly lose the transmission connection. At this time, even if the medium in the pipeline at the input end of the magnetic pump will impact the impeller of the magnetic pump due to inertia and push the impeller to continue rotating, it will not drive the inner magnetic rotor to rotate, let alone the outer magnetic rotor and the motor. The output shaft rotates, thus avoiding damage to the motor-related parts and components, and can also reduce the starting load of the motor when the magnetic pump is just started; (3) The present invention first forms a cavity through the pump body compartment, the separation ring and the leak-proof disk, and arranges the inner magnetic rotor, the linkage mechanism and the transmission mechanism in the cavity, so that only the gap at the connection between the pump shaft and the leak-proof disk is connected to the space outside the leak-proof disk in the cavity, and the booster pump cooperates with the vent to increase the pressure in the cavity, so that the medium transported by the magnetic pump cannot enter the cavity through the gap between the pump shaft and the leak-proof disk when passing through the space outside the leak-proof disk. While ensuring the stable rotation of the inner magnetic rotor, it can also avoid the increase in energy consumption required by the motor to drive the inner magnetic rotor due to the transport medium entering the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a first perspective structural diagram of the present invention; Figure 2 It is a second viewing angle structural diagram of the present invention; Figure 3 is an exploded schematic diagram of the present invention from a first viewing angle; Figure 4 is an exploded schematic diagram of the second viewing angle of the present invention; Figure 5 is a three-dimensional schematic diagram of the motor of the present invention; Figure 6 This is a first-view structural diagram of the drive compartment of the present invention; Figure 7 This is a structural diagram of the drive compartment of the present invention from a second viewing angle; Figure 8 It is a third-view structural diagram of the drive compartment of the present invention; Fig. 9 This is a structural diagram of the outer magnetic rotor of the present invention from a first perspective; Fig.10 This is a structural diagram of the connection between the separation ring and the separation cabin of the present invention from a first perspective; Fig.11 This is a second perspective structural diagram of the connection between the separation ring and the separation cabin of the present invention; Fig.12is a schematic longitudinal section diagram of a separation ring of the present invention; Fig.13 is a structural diagram of the outer magnetic rotor of the present invention from a second viewing angle; Fig.14 It is a three-dimensional schematic diagram of the linkage mechanism of the present invention; Fig.15 This is a first-view structural diagram of the pump body bin of the present invention; Fig.16 This is a second perspective structural diagram of the pump body bin of the present invention; Fig.17 is a three-dimensional schematic diagram of the inner magnetic rotor of the present invention; Fig.18 It is a structural diagram of the transmission mechanism of the present invention from a first perspective; Fig.19 It is a structural diagram of the transmission mechanism of the present invention from a second viewing angle; Fig. 20 This is a structural diagram of the transmission mechanism of the present invention when it is disassembled from the first perspective; Fig.21 It is a structural diagram of the transmission mechanism of the present invention when it is disassembled from a second viewing angle; Fig. 22 It is a three-dimensional schematic diagram of the leak-proof plate of the present invention; Fig.23 is a three-dimensional schematic diagram of the impeller of the present invention; Fig.24 It is a three-dimensional schematic diagram of the top cover mechanism of the present invention; Fig.25 It is a three-dimensional schematic diagram of the filter assembly of the present invention.

[0026] 1. Motor; 2. Drive compartment; 3. Pump compartment; 4. Top cover mechanism; 401. Sealing cover; 402. First bearing; 403. Discharge port; 404. Guide tube; 5. Drive mechanism; 501. Second bearing; 502. Rotating plate; 503. Inner sleeve ring; 504. Third bearing; 505. Outer sleeve ring; 506. Connecting slot; 507. Connecting plug; 6. External magnetic rotor; 7. Pressurizing mechanism; 701. Separating ring; 702. Separating compartment; 703. Vent; 704. Pressurizing pump; 705. Air pressure sensor; 8. Internal magnetic rotor; 9. Linkage mechanism; 901. Mounting plate; 902. Connecting slide groove; 903. Slide rod; 904. Connecting slider; 905. Drive column; 906. Reset spring; 907 , rotating bin; 908, driven block; 909, fourth bearing; 10, impeller; 11, transmission mechanism; 111, fixed ring; 112, fixed disk; 113, leakproof disk; 114, fifth bearing; 115, pump shaft; 116, first small gear; 117, first large gear; 118, second small gear; 119, second large gear; 110, oil seal; 12, feed inlet; 13, filter assembly; 131, filter cartridge; 132, bottom ring; 133, truncated cone filter; 134, limit frame; 14, first connecting flange; 15, second connecting flange; 16, third connecting flange; 17, connecting mechanism; 171, connecting seat; 172, connecting key; 173, keyway; 18, control panel; 19, fourth connecting flange. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] like Figure 1-Figure 9 and Fig.13As shown, a magnetic pump of the present embodiment includes a motor 1, a driving chamber 2 is installed at one end of the motor 1 through a first connecting flange 14, a pump body chamber 3 is installed at the end of the driving chamber 2 away from the motor 1 through a second connecting flange 15, an external magnetic rotor 6 is arranged inside the driving chamber 2, the output shaft of the motor 1 drives the external magnetic rotor 6 to rotate through a driving mechanism 5, the driving mechanism 5 includes a connecting plug 507 located at the end of the output shaft of the motor 1, a second bearing 501 is installed at the end of the inner wall of the driving chamber 2 close to the motor 1, and a rotating disk 502 is installed on the inner ring of the second bearing 501, an inner sleeve ring 503 is installed on the side of the rotating disk 502 away from the motor 1, a third bearing 504 adapted to the external magnetic rotor 6 is installed at the end of the inner wall of the driving chamber 2 away from the motor 1, and the external magnetic rotor 6 is located at the center position close to one end of the motor 1. A connecting slot 506 compatible with the connecting plug 507 is installed at the outer magnetic rotor 6, and an outer ring 505 matching with the inner ring 503 is installed at the end of the outer magnetic rotor 6 close to the motor 1. After the drive chamber 2 is fixedly connected to the motor 1 housing through the first connecting flange 14, the output shaft of the motor 1 passes through the hole in the center of the rotating disk 502 and is inserted into the connecting slot 506 at one end of the outer magnetic rotor 6. After the outer magnetic rotor 6 is inserted into the drive chamber 2, the outer ring 505 at one end of the outer magnetic rotor 6 is sleeved on the outside of the inner ring 503, thereby improving the stability of the outer magnetic rotor 6 during rotation. The third bearing 504 can also further improve the stability of the rotation of the outer magnetic rotor 6. After the fixed connection between the motor 1 and the drive chamber 2 by the first connecting flange 14 is released, the motor 1 can quickly release the transmission connection with the outer magnetic rotor 6.

[0029] like Figure 3-Figure 4 and Figure 10-12As shown, in this embodiment, a boost mechanism 7 is provided inside the outer magnetic rotor 6, and an inner magnetic rotor 8 is provided inside the boost mechanism 7, a feed port 12 is installed on the outer side of the pump body compartment 3, a control panel 18 is installed on the top of the driving compartment 2, the boost mechanism 7 includes a separation ring 701 located between two groups of flanges of the second connecting flange 15, a separation cabin 702 fixedly connected to the separation ring 701 is provided inside the outer magnetic rotor 6, and air vents 703 connected to the interior of the separation cabin 702 are symmetrically provided on the outer ring of the separation ring 701, a boost pump 704 is installed on the outer side of the driving compartment 2, and the output end of the boost pump 704 is connected to the external interface of one group of air vents 703, and an air pressure sensor 705 is installed on the external interface of the other group of air vents 703, the separation ring 701 and the separation cabin 702 are used to completely separate the outer magnetic rotor 6 and the inner magnetic rotor 8, and will not affect the rotation of the inner magnetic rotor 8 driven by the outer magnetic rotor 6, and at the same time, due to the separation ring 701 The separation compartment 702 cooperates with the pump body compartment 3 and the leak-proof disk 113 to form a complete cavity, and only the gap at the connection between the pump shaft 115 and the leak-proof disk 113 is connected to the space outside the leak-proof disk 113. Under the premise of ensuring that the pump shaft 115 can stably drive the impeller 10 to rotate, the booster pump 704 is controlled to cooperate with the vent 703 to inject air into the cavity to increase the pressure in the cavity, forcing the conveying medium in the pump body compartment 3 to be unable to enter the cavity through the gap between the pump shaft 115 and the leak-proof disk 113. The air pressure in the cavity is monitored in real time by the air pressure sensor 705. Once the air pressure in the cavity drops to a preset value, the control panel 18 controls the booster pump 704 to inject air into the cavity to increase the air pressure in the cavity. If the speed of the magnetic pump conveying the medium is increased, the booster pump 704 is controlled to increase the pressure in the cavity to ensure that the pressure in the cavity is always greater than the pressure of the conveying medium in the space outside the leak-proof disk 113.

[0030] like Figure 14-18 and Figure 20-21As shown, in this embodiment, a linkage mechanism 9 is provided at one end of the inner magnetic rotor 8 away from the motor 1 to provide a driving force for the transmission mechanism 11. The linkage mechanism 9 includes a mounting plate 901 located at the end of the inner magnetic rotor 8 away from the motor 1. Six groups of connecting grooves 902 are evenly opened on the outer side of the mounting plate 901. A slide bar 903 is installed at the middle position inside the connecting groove 902. A connecting slider 904 adapted to the connecting groove 902 is sleeved on the outer side of the slide bar 903. A driving slider 904 is installed on the outer side of the connecting slider 904. The outer sleeve of the slide rod 903 is provided with a return spring 906, and one end of the return spring 906 is fixedly connected to one end of the inner part of the connecting slide groove 902 near the center of the mounting plate 901, and the other end of the return spring 906 is fixedly connected to the connecting slider 904. The inner wall of the pump body bin 3 near the end of the motor 1 is installed with a fourth bearing 909, and the inner ring of the fourth bearing 909 is installed with a rotating bin 907. The inner wall of the rotating bin 907 is evenly installed with six groups of driven cards that cooperate with the driving column 905. In the process of the outer magnetic rotor 6 driving the inner magnetic rotor 8 to gradually speed up the rotation, the centrifugal force on the connecting slider 904 and the driving column 905 gradually increases, forcing the connecting slider 904 to slide on the slide bar 903 toward the edge of the mounting plate 901, and the reset spring 906 is stretched by the force. When the driving column 905 on the outer side of the connecting slider 904 presses against the driven block 908 in the rotating chamber 907, the inner magnetic rotor 8 will drive the rotating chamber 907 and the first fixedly connected to the rotating chamber 907. The pinion 116 rotates synchronously, and when the outer magnetic rotor 6 drives the inner magnetic rotor 8 to stop rotating immediately, the tension of the reset spring 906 pulls the connecting slider 904 to slide quickly toward the center of the mounting plate 901, so that the driving column 905 is no longer in contact with the driven block 908, and the inner magnetic rotor 8 loses the transmission connection with the first pinion 116, thereby preventing the medium in the pipeline at the input end of the magnetic pump from inertia impacting the impeller of the magnetic pump and pushing the impeller to continue rotating, thereby causing damage to the related parts of the motor 1.

[0031] like Figure 18-Figure 23As shown, in this embodiment, an impeller 10 is arranged at one end of the pump body chamber 3 away from the motor 1, and a transmission mechanism 11 is arranged at the other end of the pump body chamber 3 to drive the impeller 10 to rotate through a connecting mechanism 17. The transmission mechanism 11 includes a fixed ring 111 located at the middle position of the pump body chamber 3, and a fixed disk 112 and a leakproof disk 113 are respectively arranged at both ends of the fixed ring 111. A fifth bearing 114 is installed at the center position of the fixed disk 112, and a pump shaft 115 is installed on the inner ring of the fifth bearing 114. The leakproof disk 113 is sleeved on the outer side of the pump shaft 115, and the rotating chamber 907 is close to the pump body chamber 3. A first pinion 116 is installed at the center position of one end of the fixed disk 112, and a first large gear 117 meshing with the first pinion 116 is arranged at a non-center position of the fixed disk 112 near one end of the rotating chamber 907, and one end of the rotating shaft of the first large gear 117 passes through the fixed disk 112 and is installed with a second pinion 118, a strip-shaped through groove matching the first large gear 117 is opened at one end of the outer side of the pump body chamber 3 near the driving chamber 2, and a protection chamber matching the first large gear 117 is installed on the outer side of the strip-shaped through groove, and a protective chamber matching the first large gear 117 is installed on the outer side of the pump shaft 115 near the end of the fixed disk 112 There is a second large gear 119 meshing with the second small gear 118, an oil seal 110 is arranged at the center of the leakproof disk 113, three sets of fixing screw holes are evenly opened at the edge positions of the fixing ring 111, the fixing disk 112 and the leakproof disk 113, and the fixing ring 111, the fixing disk 112 and the leakproof disk 113 are fixedly connected to the fixing screw holes by fixing screws. When the inner magnetic rotor 8 drives the first small gear 116 to rotate through the linkage mechanism 9, the first small gear 116 will drive the second large gear 119 to rotate through the first large gear 117 and the second small gear 118, and the second The large gear 119 will drive the pump shaft 115 to rotate synchronously, so that the rotation speed of the pump shaft 115 is lower than the rotation speed of the inner magnetic rotor 8, thereby reducing the torque required by the inner magnetic rotor 8 to drive the pump shaft 115 to rotate, and thus reducing the torque required by the motor 1 to drive the impeller 10. When it is necessary to inspect and maintain the parts of the transmission mechanism 11, the fixing ring 111 and the leak-proof disk 113 are separated from the fixing disk 112 by unscrewing the three sets of fixing screws, thereby exposing the second small gear 118 and the second large gear 119, and all the parts of the transmission mechanism 11 can be inspected and maintained.

[0032] like Figure 3-Figure 4 and Fig.24As shown, in this embodiment, a top cover mechanism 4 is installed at one end of the pump body bin 3 away from the driving bin 2 through a third connecting flange 16, and a transmission mechanism 11 for driving the impeller 10 to rotate through a connecting mechanism 17 is provided at the other end inside the pump body bin 3, and the top cover mechanism 4 includes a sealing cover 401 connected to the pump body bin 3 through the third connecting flange 16, and a discharge port 403 is provided at the middle position of the sealing cover 401 away from the end of the pump body bin 3, and a first bearing 402 is installed at the center position of the sealing cover 401 near the discharge port 403, and a guide tube 404 that cooperates with the impeller 10 is installed on the inner ring of the first bearing 402, and the connecting mechanism 17 includes two sets of key grooves 173 located on the outside of the pump shaft 115, and a guide tube 404 that cooperates with the pump shaft 115 is installed at the center position of the end of the impeller 10 close to the motor 1 The connecting seat 171 cooperates with each other, and two groups of connecting keys 172 that are compatible with the keyway 173 are arranged inside the connecting seat 171. After the top of the pump shaft 115 is inserted into the interior of the connecting seat 171, the connecting key 172 in the connecting seat 171 is inserted into the keyway 173 on the outside of the pump shaft 115. Then, the sealing cover 401 is fixedly connected to the pump body bin 3 through the third connecting flange 16, and one end of the guide tube 404 of the inner ring of the first bearing 402 is against the center position of one end of the impeller 10, so that the impeller 10 can be stably connected to the pump shaft 115 for transmission. After the sealing cover 401 is removed, there is no need to unscrew the fixing screws to directly remove the impeller 10 from the pump shaft 115, which is convenient for cleaning the impeller 10 and the cavity between the pump body bin 3 and the sealing cover 401.

[0033] like Figure 1-Figure 4 and Fig.25 As shown, an anti-blocking mechanism of a magnetic pump in this embodiment includes a fourth connecting flange 19 located at the top of a feed port 12, a filter assembly 13 is installed on the feed port 12 through the fourth connecting flange 19, and the filter assembly 13 includes a filter cartridge 131, a truncated cone filter screen 133 is arranged inside the filter cartridge 131, and a bottom ring 132 is installed at the bottom end of the truncated cone filter screen 133, and a limiting frame 134 adapted to the filter cartridge 131 is installed at the top of the truncated cone filter screen 133. Before the conveying medium enters the interior of the pump body bin 3, the medium will first pass through the interior of the filter cartridge 131, and the truncated cone filter screen 133 can filter the medium in the process. The existing impurities or larger particles are filtered and intercepted, and the intercepted impurities or larger particles will gradually gather at the bottom of the cavity between the filter cartridge 131 and the truncated cone filter 133 along the guidance of the surface of the truncated cone filter 133, and will not affect the continuous filtering of the conveying medium by the truncated cone filter 133. Regularly screw open the sealing cover plate on the top of the filter cartridge 131, take out the truncated cone filter 133, clean it, and then put it into the filter cartridge 131, screw the sealing cover plate to the top of the filter cartridge 131, and the sealing cover plate is against the top of the limit frame 134 to tightly fix the truncated cone filter 133 inside the filter cartridge 131.

[0034] like Figure 18-Figure 22 As shown, the fixing ring 111 of this embodiment is provided with a groove matched with the second small gear 118 at one end close to the fixing disk 112, and a circular hole matched with the rotating shaft of the second small gear 118 is provided at the middle position inside the groove, and the fixing ring 111 is provided with an annular groove at the edge position away from one end of the fixing disk 112, and an O-ring is arranged inside the annular groove. The groove and the circular hole on the fixing ring 111 both contribute to the stable rotation of the second small gear 118 and the first large gear 117, and the annular groove and the O-ring can improve the sealing between the outer ring of the leak-proof disk 113 and the inner wall of the pump body chamber 3.

[0035] The working principle of this embodiment is as follows: the control motor 1 drives the outer magnetic rotor 6 to gradually speed up and rotate inside the driving chamber 2, and the outer magnetic rotor 6 drives the inner magnetic rotor 8 in the partition chamber 702 to rotate synchronously. As the speed of the inner magnetic rotor 8 gradually increases, the connecting slider 904 moves the driving column 905 synchronously to the edge of the mounting plate 901 until the driving column 905 is aligned with the driven block 908 in the rotating chamber 907 and drives the rotating chamber 907 to rotate, and the rotating chamber 907 drives the first pinion 116 to rotate synchronously, and the first pinion 116 rotates synchronously through the first large gear. The wheel 117 and the second small gear 118 drive the second large gear 119 to rotate, and the second large gear 119 drives the pump shaft 115 to rotate synchronously. The pump shaft 115 drives the impeller 10 to rotate through the connecting mechanism 17, allowing the medium to be filtered through the filter assembly 13 and then enter the pump body bin 3 from the feed port 12, and then be guided by the guide pipe 404 and discharged from the discharge port 403. During the process, the control panel 18 controls the booster pump 704 to inject air into the interior of the partition cabin 702 through the vent 703, and the air pressure sensor 705 monitors the pressure inside the partition cabin 702 in real time.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A magnetic pump, comprising a motor (1), characterized in that: A drive chamber (2) is mounted on one end of the motor (1) via a first connection flange (14); a pump chamber (3) is mounted on the end of the drive chamber (2) away from the motor (1) via a second connection flange (15); a top cover mechanism (4) is mounted on the end of the pump chamber (3) away from the drive chamber (2) via a third connection flange (16); an external magnetic rotor (6) is arranged inside the drive chamber (2); the output shaft of the motor (1) drives the external magnetic rotor (6) to rotate via a drive mechanism (5); a boost mechanism (7) is arranged inside the external magnetic rotor (6). , and an internal magnetic rotor (8) is arranged inside the boosting mechanism (7); an impeller (10) is arranged at one end of the pump body compartment (3) away from the motor (1); a transmission mechanism (11) is arranged at the other end of the pump body compartment (3) for driving the impeller (10) to rotate via a connecting mechanism (17); a linkage mechanism (9) is arranged at one end of the internal magnetic rotor (8) away from the motor (1) for providing a driving force for the transmission mechanism (11); a feed port (12) is installed on the outside of the pump body compartment (3); and a control panel (18) is installed on the top of the drive compartment (2).

2. The magnetic pump according to claim 1, characterized in that: The top cover mechanism (4) comprises a sealing cover (401) connected to the pump body bin (3) via a third connecting flange (16); a discharge port (403) is provided at a middle position of one end of the sealing cover (401) away from the pump body bin (3); a first bearing (402) is installed at a central position of one end of the sealing cover (401) close to the discharge port (403); and a guide tube (404) that cooperates with the impeller (10) is installed on the inner ring of the first bearing (402).

3. The magnetic pump according to claim 1, characterized in that: The driving mechanism (5) comprises a connecting plug (507) located at the end of the output shaft of the motor (1); a second bearing (501) is installed on the end of the inner wall of the driving chamber (2) close to the motor (1); a rotating disk (502) is installed on the inner ring of the second bearing (501); an inner sleeve ring (503) is installed on the side of the rotating disk (502) away from the motor (1); a third bearing (504) adapted to the outer magnetic rotor (6) is installed on the end of the inner wall of the driving chamber (2) away from the motor (1); a connecting slot (506) adapted to the connecting plug (507) is installed at the center position of one end of the outer magnetic rotor (6) close to the motor (1); and an outer sleeve ring (505) adapted to cooperate with the inner sleeve ring (503) is installed on the end of the outer magnetic rotor (6) close to the motor (1).

4. The magnetic pump according to claim 1, characterized in that: The boost mechanism (7) comprises a separation ring (701) located between two groups of flange plates of the second connecting flange (15); a separation chamber (702) fixedly connected to the separation ring (701) is arranged inside the external magnetic rotor (6); an outer ring of the separation ring (701) is symmetrically provided with air vents (703) connected to the inside of the separation chamber (702); a boost pump (704) is installed on the outside of the drive chamber (2), and the output end of the boost pump (704) is connected to the external interface of one group of air vents (703); and an air pressure sensor (705) is installed on the external interface of another group of air vents (703).

5. The magnetic pump according to claim 1, characterized in that: The linkage mechanism (9) comprises a mounting plate (901) located at an end of the inner magnetic rotor (8) away from the motor (1), six groups of connecting grooves (902) are evenly arranged on the outer side of the mounting plate (901), a slide bar (903) is installed at the middle position inside the connecting groove (902), and a connecting slider (904) adapted to the connecting groove (902) is sleeved on the outer side of the slide bar (903), a driving column (905) is installed on the outer side of the connecting slider (904), and a reset tension spring (905) is sleeved on the outer side of the slide bar (903). 06), and one end of the reset spring (906) is fixedly connected to one end of the connecting groove (902) near the center of the mounting plate (901), and the other end of the reset spring (906) is fixedly connected to the connecting slider (904), and a fourth bearing (909) is installed at one end of the inner wall of the pump body bin (3) near the motor (1), and a rotating bin (907) is installed on the inner ring of the fourth bearing (909), and six groups of driven blocks (908) that cooperate with the driving column (905) are evenly installed on the inner wall of the rotating bin (907).

6. The magnetic pump according to claim 4, characterized in that: The transmission mechanism (11) comprises a fixed ring (111) located at a middle position inside the pump body chamber (3); a fixed disk (112) and a leakproof disk (113) are respectively arranged at two ends of the fixed ring (111); a fifth bearing (114) is installed at a central position of the fixed disk (112); a pump shaft (115) is installed on the inner ring of the fifth bearing (114); the leakproof disk (113) is sleeved on the outer side of the pump shaft (115); and a first pinion is installed at a central position of one end of the rotating chamber (907) close to the fixed disk (112). (116), a first large gear (117) meshing with the first small gear (116) is provided at a non-central position of the fixed disk (112) near one end of the rotating chamber (907), and one end of the rotating shaft of the first large gear (117) passes through the fixed disk (112) and is installed with a second small gear (118), a second large gear (119) meshing with the second small gear (118) is installed at one end of the outer side of the pump shaft (115) near the fixed disk (112), and an oil seal (110) is provided at the central position of the leak-proof disk (113).

7. The magnetic pump according to claim 5, characterized in that: The connection mechanism (17) comprises two groups of keyways (173) located outside the pump shaft (115); a connection seat (171) matching with the pump shaft (115) is installed at a central position of one end of the impeller (10) close to the motor (1), and two groups of connection keys (172) matching with the keyways (173) are arranged inside the connection seat (171).

8. The magnetic pump according to claim 5, characterized in that: Three groups of fixing screw holes are evenly arranged at the edges of the fixing ring (111), the fixing plate (112) and the leakproof plate (113), and the fixing ring (111), the fixing plate (112) and the leakproof plate (113) are fixedly connected to the fixing screw holes via fixing screws.

9. The magnetic pump according to claim 4, characterized in that: A strip-shaped through groove matched with the first large gear (117) is provided on one end of the outer side of the pump body compartment (3) close to the driving compartment (2), and a protection compartment matched with the first large gear (117) is installed on the outer side of the strip-shaped through groove.

10. The anti-blocking mechanism of the magnetic pump according to any one of claims 1 to 9, comprising a fourth connecting flange (19) located at the top of the feed inlet (12), characterized in that: The feed port (12) is provided with a filter assembly (13) via a fourth connecting flange (19); the filter assembly (13) comprises a filter cartridge (131); a truncated cone filter screen (133) is provided inside the filter cartridge (131); a bottom ring (132) is installed at the bottom end of the truncated cone filter screen (133); and a limiting frame (134) adapted to the filter cartridge (131) is installed at the top end of the truncated cone filter screen (133).

Images