High-wear-resistance vertical magnetic drive pump

Abstract

The utility model relates to a high-wear-resistance vertical magnetic drive pump which comprises a motor body, a rotating shaft is arranged in the center of the lower end of the motor body, the lower end of the rotating shaft is fixedly connected with an outer magnetic rotor, the outer side of the outer magnetic rotor is wrapped with a protection pump body, and the lower end of the protection pump body is fixedly connected with a supporting frame. The inner side of the outer magnetic rotor is provided with a wear-resistant isolation sleeve, the wear-resistant isolation sleeve is internally provided with an inner magnetic rotor, the inner center of the inner magnetic rotor is provided with a pump shaft, the lower end of the pump shaft is connected with an impeller, the lower end of the impeller is provided with a circulation cavity, and the left side and the right side of the circulation cavity are provided with a water inlet and a water outlet respectively; according to the vertical magnetic drive pump, heat transferred to the pump body after the motor body works can be effectively reduced, heat dissipation of the pump body is more convenient, and the wear-resistant isolation sleeve, the impeller nut and the base piece are arranged, so that the whole vertical magnetic drive pump is more stable in installation, good in heat dissipation effect, high in wear-resistant coefficient, long in service life, low in structural material cost and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical magnetic pumps, in particular to a highly wear-resistant vertical magnetic pump. Background Art

[0002] The magnetic pump is mainly composed of several parts such as pump head, magnetic transmission, motor, base, etc. The magnetic transmission of the magnetic pump is composed of an outer magnetic rotor, an inner magnetic rotor and a non-magnetic isolation sleeve. The dynamic seal structure that is prone to leakage is converted into a zero-leakage static seal structure. The vertical magnetic pump is a new type of pipeline pump based on the experience of the horizontal magnetic pump. It is installed vertically and has the characteristics of a magnetic pump and the advantages of a magnetic chemical pump. It is a leak-free pipeline centrifugal pump.

[0003] Patent No. CN202021723883.6 discloses a non-wear magnetic pump, which consists of a pump body, an impeller, an inner magnetic rotor, an outer magnetic rotor, an isolation sleeve and a friction pair assembly. The friction pair assembly is composed of a sliding bearing, a sleeve and a thrust ring. The surface of each part is sprayed with a zirconium oxide (GO2) ceramic nano-coating with high hardness, high wear resistance and low friction coefficient under specific conditions. The surface and inner hole of the sliding bearing are respectively provided with hydraulic flow channels and lubrication cooling grooves. Finally, the magnetic pump is non-wear-resistant during operation of the wearing parts, which solves the problem of frequent damage to the wearing parts of the magnetic pump and greatly improves the service life of the pump. However, the magnetic pump has the following problems: first, the heat dissipation capacity of the motor driving the rotating shaft and the outer magnetic rotor is poor when working. Secondly, the wear resistance coefficient of the isolation sleeve is not high. The impeller installation is easy to loosen with the long-term operation of the magnetic pump, and the installation stability is poor. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art. By separating the pump body and the motor body through a stabilizing disc and a connecting block, the heat transferred to the pump body after the motor body is working can be effectively reduced, and the heat dissipation of the pump body is more convenient. Secondly, a wear-resistant isolation sleeve, an impeller nut and a base plate are provided, which can effectively solve the technical problems in the prior art that the impeller of the magnetic pump is easy to fall off after long-term use, the wear resistance is poor, and the installation stability of the vertical magnetic pump is poor.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A highly wear-resistant vertical magnetic pump, comprising a motor body, the surface of the motor body is evenly provided with heat sinks, and the lower end of the motor body is fixedly connected to a stabilizing disc, the lower end of the stabilizing disc is fixedly connected to a connecting block, a rotating shaft is provided at the center of the lower end of the motor body, the rotating shaft penetrates and connects the stabilizing disc and the connecting block, and the lower end of the rotating shaft is fixedly connected to an external magnetic rotor, the outer side of the external magnetic rotor is wrapped with a protective pump body, the left and right sides of the protective pump body are respectively provided with a water inlet and a water outlet, and the lower end of the protective pump body is fixedly connected to a support frame;

[0007] An outer magnetic rotor, wherein a wear-resistant isolation sleeve is provided on the inner side of the outer magnetic rotor, an inner magnetic rotor is provided inside the wear-resistant isolation sleeve, a pump shaft is provided at the center of the inner magnetic rotor, the lower end of the pump shaft is connected to an impeller, a circulation chamber is provided at the lower end of the impeller, and the left and right sides of the circulation chamber are respectively a water inlet and a water outlet.

[0008] As a preference, the wear-resistant isolation sleeve is a ceramic isolation sleeve, and a zirconium oxide ceramic nano coating is provided on the surface of the wear-resistant isolation sleeve.

[0009] Preferably, a rear nut is provided at the upper end of the pump shaft, and the rear nut fixedly connects the pump shaft and the internal magnetic rotor. An impeller nut is provided at the lower end of the pump shaft, and the impeller nut is arranged in the circulation chamber. The impeller nut is spherical in shape, and a micro-arc oxidation ceramic film layer is provided on the surface of the impeller nut.

[0010] As a preferred embodiment, vertical plates are symmetrically provided on the front and rear sides of the support frame, the vertical plates are fixedly connected to the protective pump body, and the lower ends of the vertical plates are fixedly connected to the base plate, the four vertices of the base plate are provided with connection holes, and the lower end surface of the base plate is provided with a rubber layer, and the lower end of the rubber layer is provided with a wear-resistant layer, and the wear-resistant layer is a ceramic layer.

[0011] As a preferred embodiment, the connecting block includes an upper top plate, a bearing at the center of the upper top plate is connected to the rotating shaft, and threaded holes are evenly opened on the surface of the upper top plate, the upper top plate is fixedly connected to the stabilizing disc through the threaded holes, and the lower end of the upper top plate is fixedly connected to four evenly distributed oblique support bodies, the lower end of the oblique support body is fixedly connected to the protective pump body, and a rotating shaft is provided at the center of the oblique support body.

[0012] As another preferred embodiment, sealing rubber pads are provided at the edges of the water inlet and water outlet openings, and the sealing rubber pads are in the shape of circular arc protrusions.

[0013] Beneficial effects of the utility model:

[0014] (1) In the utility model, a stabilizing disc and a connecting block are provided to separate the motor body and the pump body. The heat generated by the motor during operation will not affect the pump body, thereby extending the service life of the magnetic pump and not affecting the stable rotation of the rotating shaft. The structure is lighter and the material cost is reduced.

[0015] (2) In the utility model, a wear-resistant isolation sleeve is provided, the isolation sleeve is provided as a ceramic isolation sleeve, and a zirconium oxide ceramic nano-coating is sprayed on the outer end of the ceramic isolation sleeve, which can effectively reduce the rotational wear between the inner magnetic rotor and the isolation sleeve, and make the inner magnetic rotor rotate more smoothly without affecting the transmission of internal and external magnetic forces, and the overall wear resistance is better.

[0016] (3) In the utility model, an impeller nut is provided, which is used to fix the impeller. The impeller is located in the circulation chamber. As the magnetic pump runs, different liquids will flow through the circulation chamber. In particular, the vertical magnetic pump is suitable for conveying liquids with more impurities. In this way, the impeller nut is easily contacted and rubbed with the impeller nut, which may cause the impeller nut to loosen and fall off. The impeller nut is set to a spherical shape and a layer of micro-arc oxidation ceramic film is sprayed on its surface. This can effectively extend the service life of the impeller, ensure that the impeller is fixed more durable, and the impeller nut has better wear resistance.

[0017] In summary, the device has the advantages of good heat dissipation effect, lighter structure, low cost, high connection stability, good wear resistance and long service life, and is particularly suitable for the field of vertical magnetic pump technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the structure of the inner magnetic rotor and the outer magnetic rotor in the utility model.

[0021] Figure 3 It is a structural schematic diagram of the connecting block in the utility model.

[0022] Figure 4 It is a schematic structural diagram of the wear-resistant layer and the rubber layer in the utility model. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings.

[0024] Embodiment 1

[0025] like Figures 1 to 4As shown, the utility model provides a highly wear-resistant vertical magnetic pump, including a motor body 1, the surface of the motor body 1 is evenly provided with heat sinks 11, and the lower end of the motor body 1 is fixedly connected to a stabilizing disc 12, the lower end of the stabilizing disc 12 is fixedly connected to a connecting block 13, a rotating shaft 2 is provided at the center of the lower end of the motor body 1, the rotating shaft 2 penetrates and connects the stabilizing disc 12 and the connecting block 13, and the lower end of the rotating shaft 2 is fixedly connected to an external magnetic rotor 21, the outer side of the external magnetic rotor 21 is wrapped with a protective pump body 3, the left and right sides of the protective pump body 3 are respectively provided with a water inlet 31 and a water outlet 32, and the lower end of the protective pump body 3 is fixedly connected to a support frame 4;

[0026] An outer magnetic rotor 21 is provided with a wear-resistant isolation sleeve 22 on the inner side of the outer magnetic rotor 21, an inner magnetic rotor 23 is provided inside the wear-resistant isolation sleeve 22, a pump shaft 24 is provided at the center of the inner magnetic rotor 23, the lower end of the pump shaft 24 is connected to the impeller 25, a flow chamber 26 is provided at the lower end of the impeller 25, and the left and right sides of the flow chamber 26 are respectively a water inlet 31 and a water outlet 32.

[0027] Furthermore, the wear-resistant isolation sleeve 22 is a ceramic isolation sleeve, and a zirconium oxide ceramic nano-coating is provided on the surface of the wear-resistant isolation sleeve 22, so as to ensure that the wear-resistant isolation sleeve 22 has better wear resistance and the service life of the entire magnetic pump is longer.

[0028] Furthermore, a rear nut 241 is provided at the upper end of the pump shaft 24, and the rear nut 241 fixes the pump shaft 24 and the inner magnetic rotor 23 together. An impeller nut 242 is provided at the lower end of the pump shaft 24, and the impeller nut 242 is arranged in the circulation chamber 26. The impeller nut 242 is spherical in shape, and a micro-arc oxidation ceramic film layer is provided on the surface of the impeller nut 242. The rear nut 241 is provided at the upper end of the pump shaft 24 to stabilize the installation position of the pump shaft 24, and the impeller nut 242 is provided at the lower end to limit the position of the pump shaft 24 and install the impeller 25 at the same time. Moreover, the impeller nut 242 is arranged in the circulation chamber 26 and is easily eroded and worn by different liquids. Therefore, spraying a micro-arc oxidation ceramic film layer on its surface can effectively reduce the erosion and wear of the impeller nut 242 by different liquids, thereby ensuring that the impeller 25 is installed more firmly, and the service life of the entire magnetic pump is longer. The principle is simple and the practicability is strong.

[0029] Furthermore, vertical pieces 41 are symmetrically provided on the front and rear sides of the support frame 4, the vertical pieces 41 are fixedly connected to protect the pump body 3, and the lower ends of the vertical pieces 41 are fixedly connected to the base piece 42, the four vertices of the base piece 42 are provided with connection holes 43, and the lower end surface of the base piece 42 is provided with a rubber layer 44, and the lower end of the rubber layer 44 is provided with a wear-resistant layer 45, and the wear-resistant layer 45 is a ceramic layer. The support frame 4 fixes and limits the entire vertical magnetic pump to ensure that the vertical magnetic pump is more stable when placed, and the rubber layer 44 is provided at the lower end of the base piece 42 to reduce the transmission of vibration between the magnetic pump placement platform and the magnetic pump when working, and the wear-resistant layer 45 is used to reduce the wear of the magnetic pump base and the placement plane after the vibration transmission, to ensure that the placement is more stable and the wear resistance is higher.

[0030] Furthermore, the connecting block 13 includes an upper top plate 131, the center position of the upper top plate 131 is bearing-connected to the rotating shaft 2, and the surface of the upper top plate 131 is evenly provided with threaded holes, the upper top plate 131 is fixedly connected to the stabilizing disc 12 through the threaded holes, and the lower end of the upper top plate 131 is fixedly connected to four evenly distributed oblique support bodies 132, the lower ends of the oblique support bodies 132 are fixedly connected to the protective pump body 3, and the center position of the oblique support bodies 132 is provided with a rotating shaft 2, the connecting block 13 is for stably connecting the motor body 1 and the protective pump body 3, the rotating shaft 2 can be more stably extended into the connection with the protective pump body 3, ensuring that the entire magnetic pump can operate normally, reducing heat transfer, and also improving the heat dissipation performance of the motor body 1 and the protective pump body 3.

[0031] Furthermore, the edges of the openings of the water inlet 31 and the water outlet 32 ​​are both provided with sealing rubber pads 33 , and the sealing rubber pads 33 are in the shape of arc protrusions, thereby ensuring better sealing of the water inlet 31 and the water outlet 32 ​​when in an external pipeline.

[0032] Working process: First, the motor body 1 is fixedly connected with the stabilizing disc 12. The heat sink 11 on the motor body 1 can effectively dissipate the heat generated by the motor body 1 when it is working. Then, threaded holes are evenly arranged on the surface of the stabilizing disc 12. The threaded holes on the stabilizing disc 12 and the upper plate 131 correspond to each other. Thus, nuts are used for fixed connection to ensure that the connection between the motor body 1 and the protective pump body 3 is more stable, and the placement and movement of the rotating shaft 2 can also be more stable.

[0033] The rotation of the rotating shaft 2 drives the outer magnetic rotor 21 to rotate, the outer magnetic rotor 21 drives the inner magnetic rotor 23 to rotate, the inner magnetic rotor 23 drives the pump shaft 24 to rotate, the pump shaft 24 drives the impeller 25 to rotate, the liquid enters the water outlet 32 ​​from the water inlet 31 through the flow chamber 26, and the normal operation of the magnetic pump is realized. The principle is simple and the practicability is strong.

[0034] The entire vertical magnetic pump achieves high wear resistance through the wear-resistant isolation sleeve 22, the impeller is fastened and the structure has a long service life through the impeller nut 242, and the wear-resistant layer 45 of the base plate 42 reduces the wear of the vertical magnetic pump during the working process and the installation surface. The installation is more stable, the heat dissipation effect is good, the wear resistance coefficient is high, the service life is long, the structural material cost is low, and the practicability is strong.

[0035] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0036] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0037] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A highly wear-resistant vertical magnetic pump, characterized in that: include A motor body (1), wherein a heat sink (11) is evenly arranged on the surface of the motor body (1), and the lower end of the motor body (1) is fixedly connected to a stabilizing disc (12), and the lower end of the stabilizing disc (12) is fixedly connected to a connecting block (13), and a rotating shaft (2) is arranged at the center position of the lower end of the motor body (1), and the rotating shaft (2) penetrates and connects the stabilizing disc (12) and the connecting block (13), and the lower end of the rotating shaft (2) is fixedly connected to an external magnetic rotor (21), and the outer side of the external magnetic rotor (21) is wrapped with a protective pump body (3), and the left and right sides of the protective pump body (3) are respectively provided with a water inlet (31) and a water outlet (32), and the lower end of the protective pump body (3) is fixedly connected to a support frame (4); An outer magnetic rotor (21), wherein a wear-resistant isolation sleeve (22) is provided on the inner side of the outer magnetic rotor (21), an inner magnetic rotor (23) is provided inside the wear-resistant isolation sleeve (22), a pump shaft (24) is provided at the center of the inner magnetic rotor (23), the lower end of the pump shaft (24) is connected to an impeller (25), a circulation chamber (26) is provided at the lower end of the impeller (25), and the left and right sides of the circulation chamber (26) are respectively a water inlet (31) and a water outlet (32).

2. A highly wear-resistant vertical magnetic pump according to claim 1, characterized in that: The wear-resistant isolation sleeve (22) is a ceramic isolation sleeve, and a zirconium oxide ceramic nano coating is provided on the surface of the wear-resistant isolation sleeve (22).

3. A highly wear-resistant vertical magnetic pump according to claim 1, characterized in that: The upper end of the pump shaft (24) is provided with a rear nut (241), and the rear nut (241) fixedly connects the pump shaft (24) and the inner magnetic rotor (23). The lower end of the pump shaft (24) is provided with an impeller nut (242), and the impeller nut (242) is arranged in the circulation chamber (26). The impeller nut (242) is spherical in shape, and a micro-arc oxidation ceramic film layer is provided on the surface of the impeller nut (242).

4. A highly wear-resistant vertical magnetic pump according to claim 1, characterized in that: The support frame (4) is symmetrically provided with vertical pieces (41) on the front and rear sides, the vertical pieces (41) are fixedly connected to the protective pump body (3), and the lower ends of the vertical pieces (41) are fixedly connected to the base piece (42), the four vertices of the base piece (42) are all provided with connection holes (43), and the lower end surface of the base piece (42) is provided with a rubber layer (44), and the lower end of the rubber layer (44) is provided with a wear-resistant layer (45), and the wear-resistant layer (45) is a ceramic layer.

5. A highly wear-resistant vertical magnetic pump according to claim 1, characterized in that: The connecting block (13) comprises an upper top plate (131), the center position of the upper top plate (131) is bearing-connected to the rotating shaft (2), and the surface of the upper top plate (131) is evenly provided with threaded holes, the upper top plate (131) is fixedly connected to the stabilizing disc (12) through the threaded holes, and the lower end of the upper top plate (131) is fixedly connected to four evenly distributed oblique support bodies (132), the lower end of the oblique support body (132) is fixedly connected to the protective pump body (3), and the center position of the oblique support body (132) is provided with a rotating shaft (2).

6. A highly wear-resistant vertical magnetic pump according to claim 1, characterized in that: Sealing rubber pads (33) are provided at the edges of the openings of the water inlet (31) and the water outlet (32), and the sealing rubber pads (33) are in the shape of circular arc protrusions.

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