CN216199214U - Assembly of impeller and inner rotor and canned magnetic pump - Google Patents
Assembly of impeller and inner rotor and canned magnetic pump Download PDFInfo
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- CN216199214U CN216199214U CN202122620371.8U CN202122620371U CN216199214U CN 216199214 U CN216199214 U CN 216199214U CN 202122620371 U CN202122620371 U CN 202122620371U CN 216199214 U CN216199214 U CN 216199214U
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Abstract
The utility model provides an assembly and canned magnetic drive pump of impeller and inner rotor, canned magnetic drive pump can stabilize the associativity of impeller and inner rotor and contain base, positioning seat, motor element, pump protecgulum and back lid. The motor unit comprises a shell, a stator, an inner rotor and an impeller, wherein the inner rotor is provided with a plurality of convex ribs and a plurality of clamping grooves, the impeller is provided with a plurality of caulking grooves, a plurality of pairs of cutting seams and a plurality of elastic clamping hooks, and when the convex ribs are embedded into the caulking grooves, the elastic clamping hooks are respectively embedded and buckled into the clamping grooves. Therefore, the impeller and the inner rotor can be firmly combined.
Description
Technical Field
The present invention relates to canned magnetic pumps, and more particularly, to a canned magnetic pump capable of securing the coupling between an impeller and an inner rotor.
Background
In a conventional magnetic pump (taiwan patent publication No. 507049), a projection and a groove are provided on the outer periphery of a fitting portion of one impeller so as to project radially in the circumferential direction, and a projection and a groove are also provided on the inner periphery of a fitting portion of the corresponding one of magnet rings. The side surfaces of these projections and grooves, i.e., the surfaces extending in the radial direction, constitute the rotational power transmission surfaces. On the other hand, the fitting part of the impeller is also provided with a pair of holes, the corresponding part of the magnet ring is also provided with a hole, when the magnet ring is fitted in the impeller, the protrusion of the impeller is embedded in the groove of the magnet ring, the protrusion of the magnet ring is embedded in the groove of the impeller, and the impeller and the magnet ring are jointed by using a plurality of pins penetrating through the holes of the magnet ring and the holes of the impeller.
Although the magnet ring can achieve the purpose of pumping liquid in expectation, the surfaces of the protrusion side edges of the impeller and the corresponding surfaces of the magnet ring are only used for power transmission, so that the impeller and the magnet ring can achieve the axial joint purpose only by utilizing the pin to penetrate through the hole of the magnet ring and the hole of the impeller after the impeller and the magnet ring are sleeved with each other, and thus, the structure is complex and the assembly is troublesome.
Disclosure of Invention
An object of the present invention is to provide an impeller and inner rotor combination which can improve the stability of the combination.
Another object of the present invention is to provide a canned magnetic pump that can solve the existing disadvantages and can stabilize the combination of the impeller and the inner rotor.
The utility model relates to an impeller and inner rotor combination, wherein the inner rotor comprises a front section, a rear section connected with the front section along an axis, and a shoulder part connected with the joint of the front section and the rear section, the front section is provided with a front end surface, an outer circumferential surface intersected and connected with the front end surface, a plurality of convex ribs arranged at intervals around the axis and protruding from the outer circumferential surface, and a plurality of clamping grooves arranged at intervals around the axis and recessed from the outer circumferential surface, the convex ribs extend from the front end surface to the shoulder part, each convex rib is provided with a narrow end corresponding to the front end surface, a wide end corresponding to the shoulder part, and at least one first inclined surface extending from the narrow end to the wide end, the impeller comprises a combination section jointed with the front section, and a blade section connected with the combination section along the axis, the combination section is provided with a side end surface opposite to the shoulder part, An inner ring surface surrounding the axis and defining a containing hole, an outer ring surface opposite to the inner ring surface, a plurality of caulking grooves concavely formed on the inner ring surface and communicated with the side end surface, a plurality of pairs of cutting slits concavely formed on the side end surface and communicated with the inner ring surface and the outer ring surface, and a plurality of elastic clamping hooks arranged between each pair of cutting slits, wherein each caulking groove is provided with an expanding end corresponding to the side end surface and a narrow end opposite to the expanding end along the axis, each caulking groove is formed by a groove bottom surface arranged between the inner ring surface and the outer ring surface, a groove end surface connected between the groove bottom surface and the inner ring surface in an intersecting manner, and two groove side surfaces extending from the expanding end to the narrow end and connected between the groove bottom surface and the inner ring surface in an intersecting manner, at least one groove side surface is in an inclined surface shape, and when the convex rib is embedded in the caulking groove, the first inclined surface is tightly abutted against the corresponding groove side surface, and the elastic clamping hooks are respectively embedded and buckled in the clamping grooves.
In the combination of the impeller and the inner rotor, each convex rib of the inner rotor is also provided with a side surface part which is arranged at an interval with the outer peripheral surface, the side surface part is provided with two surface side edges which are arranged at an interval around the axis, a front arc section which is connected between the surface side edges in an intersecting way and corresponds to the front end surface, and a rear arc section which is connected between the surface side edges in an intersecting way and corresponds to the shoulder part, the side surface part forms a trapezoidal outline by the surface side edges, the front arc section and the rear arc section together, the first inclined plane is connected between the surface side edges and the outer peripheral surface in an intersecting way, the groove bottom surface of each embedded groove of the impeller is provided with two groove side edges which are arranged at an interval around the axis, an inner arc section which is connected between the groove side edges in an intersecting way and corresponds to the narrow end, and an outer arc section which is connected between the groove side edges in an intersecting way and corresponds to the expanded end, the groove bottom surface is formed by the groove side edge, the inner arc section and the outer arc section together to form a trapezoidal outline.
In the impeller and inner rotor assembly, the outer peripheral surface of the inner rotor is in a conical surface shape, the diameter of one end, connected with the front end surface, of the outer peripheral surface is smaller, the diameter of one end, connected with the shoulder part, of the outer peripheral surface is larger, the accommodating hole of the impeller is in a conical hole shape, and the inner diameter of one end, connected with the side end surface, of the inner annular surface is larger and gradually reduced towards the blade section.
The canned magnetic pump can stabilize the combination of the impeller and the inner rotor, and comprises a base, a positioning seat, a motor unit, a pump front cover and a rear cover, wherein the base is made into a hollow cylinder shape and surrounds an axis and defines a containing hole, the positioning seat is made into a hollow cylinder shape and is arranged in the containing hole of the base, the motor unit comprises a shell arranged on the base, a stator sleeved between the shell and the base and the positioning seat, the inner rotor arranged in the shell and an impeller connected with the inner rotor, the inner rotor comprises a front section, a rear section connected with the front section along the axis and a shoulder part connected at the joint of the front section and the rear section, the front section is provided with a front end face, an outer peripheral face intersected with the front end face and a plurality of convex ribs which are arranged at intervals around the axis and protrude from the outer peripheral face, and a plurality of slots disposed at intervals around the axis and recessed from the outer circumferential surface, the protruding rib extending from the front end surface to the shoulder portion, each protruding rib having a narrow end corresponding to the front end surface, a wide end corresponding to the shoulder portion, and at least one first inclined surface extending from the narrow end toward the wide end, the impeller including a coupling section coupled to the front section, and a blade section connected to the coupling section along the axis, the coupling section having a side end surface opposite to the shoulder portion, an inner ring surface surrounding the axis and defining a receiving hole, an outer ring surface opposite to the inner ring surface, a plurality of slots recessed from the inner ring surface and communicating with the side end surface, a plurality of pairs of slits recessed from the side end surface and communicating the inner ring surface and the outer ring surface, and a plurality of elastic hooks between each pair of slits, each caulking groove is provided with a flaring end corresponding to the side end face and a narrow end opposite to the flaring end along the axis, each caulking groove is formed by a groove bottom face between the inner ring face and the outer ring face, a groove end face intersected and connected between the groove bottom face and the inner ring face, and two groove side faces which extend from the flaring end towards the narrow end and are intersected and connected between the groove bottom face and the inner ring face, at least one groove side face is in an inclined face shape, when the convex rib is embedded into the caulking groove, the first inclined face is pressed and abutted with the corresponding groove side face, the elastic clamping hooks are respectively embedded and buckled in the clamping grooves, the pump front cover is installed on the base and covered outside the impeller, and the rear cover is opposite to the pump front cover along the axis and positioned relative to the base.
The canned magnetic pump of the utility model, each convex rib of the inner rotor further has a side part which is arranged at intervals with the outer peripheral surface, the side part has two face side edges which are arranged at intervals around the axis, a front arc section which is connected between the face side edges in an intersecting way and corresponds to the front end surface, and a rear arc section which is connected between the face side edges in an intersecting way and corresponds to the shoulder part, the side part forms a trapezoidal outline by the face side edges, the front arc section and the rear arc section together, the first inclined plane is connected between the face side edges and the outer peripheral surface in an intersecting way, the groove bottom surface of each caulking groove of the impeller has two groove side edges which are arranged at intervals around the axis, an inner arc section which is connected between the groove side edges in an intersecting way and corresponds to the narrow end, and an outer arc section which is connected between the groove side edges in an intersecting way and corresponds to the expanded end, the groove bottom surface is formed by the groove side edge, the inner arc section and the outer arc section together to form a trapezoidal outline.
In the canned magnetic pump, the outer peripheral surface of the inner rotor is conical, the diameter of one end, connected with the front end surface, of the outer peripheral surface is smaller, the diameter of one end, connected with the shoulder part, of the outer peripheral surface is larger, the accommodating hole of the impeller is conical, and the inner diameter of one end, connected with the side end surface, of the inner ring surface is larger and gradually reduced towards the blade section.
The utility model has the beneficial effects that: when the impeller is jointed with the inner rotor and the convex ribs are embedded into the embedded grooves, the impeller and the inner rotor can be firmly combined through the tight interference of the first inclined surface and the side surfaces of the grooves and the embedding of the elastic clamping hooks in the clamping grooves respectively.
Drawings
FIG. 1 is an assembled cross-sectional view of one embodiment of a canned magnetic pump of the present invention;
FIG. 2 is an exploded perspective view of the embodiment;
fig. 3 is a schematic perspective view of an inner rotor of the embodiment;
FIG. 4 is a schematic perspective view of an impeller of the embodiment;
fig. 5 is a perspective combined sectional view of the inner rotor and the impeller of the embodiment;
fig. 6 is a plan combination cross-sectional view of the inner rotor and impeller of this embodiment; and
fig. 7 is a sectional view taken along line vii-vii in fig. 6.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, an embodiment of the canned magnetic pump of the present invention includes a base 10, a positioning seat 20, a motor unit 30, a pump front cover 60, and a rear cover 70.
The base 10 is made of plastic material and is in a hollow cylinder shape, and in this embodiment, engineering plastic material with acid and alkali resistance may be selected and made of engineering plastic material, such as Polypropylene (PP), Glass Fiber reinforced Polypropylene (GFRPP), Polyvinylidene fluoride (PVDF), Carbon Fiber-added fluoroplastic resin (cfrefe. ETFE is an abbreviation of english Ethylene teflon, and is referred to as Ethylene-Tetrafluoroethylene copolymer, commonly referred to as fluoroplastic resin), and the like, and includes an accommodation hole 11 disposed along an axis L.
The positioning seat 20 is made of aluminum alloy and is made into a hollow cylinder shape, and is nested and installed in the accommodating hole 11 of the base 10 in a non-rotatable manner.
The motor unit 30 includes a housing 31 installed on the base 10, a stator 32 sleeved between the housing 31 and the base 10 and the positioning seat 20, an inner rotor 40 installed inside the housing 31, and an impeller 50 connected to the inner rotor 40. The operation principle of the motor unit 30 is not related to the technical problem to be solved by the present invention and is not the focus of the present invention, so it is not described much. Only the details of the inner rotor 40 and the impeller 50 will be described below.
Referring to fig. 3, 5 to 7, the inner rotor 40 includes a front section 41, a rear section 42 connected to the front section 41 along the axis L, and a shoulder 43 connected to a joint of the front section 41 and the rear section 42, the front section 41 has a front end face 411, an outer circumferential face 412 connected to the front end face 411 in an intersecting manner, a plurality of ribs 413 disposed at intervals around the axis L and protruding from the outer circumferential face 412, and a plurality of slots 414 disposed at intervals around the axis L and recessed from the outer circumferential face 412. The outer peripheral surface 412 is conical, and has a smaller diameter at the end connected to the front end surface 411 and a larger diameter at the end connected to the shoulder 43. The ribs 413 extend from the front face 411 to the shoulder 43, each rib 413 has a narrow end 415 corresponding to the front face 411, a wide end 416 corresponding to the shoulder 43, a side face 417 spaced apart from the outer peripheral face 412, and two first inclined planes 418 extending from the narrow end 415 to the wide end 416 and intersecting and connecting between the side surface 417 and the outer peripheral surface 412, wherein the first inclined planes 418 are inclined planes (inclination is about 2-3 degrees), the side portion 417 has two side edges 419 spaced about the axis L, a front arc segment 419' intersecting and connected between the side edges 419 and corresponding to the front end face 411, and a rear arcuate segment 419 "connected between said face side edges 419 and corresponding to the shoulder 43, the side portion 417 is formed by the side edges 419, the front arc segment 419' and the rear arc segment 419 "together forming a trapezoidal profile. The slope is defined by the angle of the height of the trapezoidal profile with the side edge 419 of the face.
Referring to fig. 4 to 7, the impeller 50 includes a coupling section 51 coupled to the front section 41, a blade section 52 connected to the coupling section 51 along the axis L, and a central hole 53 extending along the axis L and communicating the coupling section 51 and the blade section 52, the central hole 53 being stepped and having a large diameter portion 531 for the front section 41 to be fitted into and corresponding to the coupling section 51, a small diameter portion 532 corresponding to the blade section 52, and a stopping surface 533 located at a junction of the large diameter portion and the small diameter portion 532, the coupling section 51 having a lateral end surface 511 corresponding to the shoulder 43, an inner annular surface 513 surrounding the axis L and defining a holding hole 512, an outer annular surface 514 opposite to the inner annular surface 513, a plurality of grooves 54 recessed from the inner annular surface 513 and communicating with the lateral end surface 511, a plurality of pairs of grooves 515 recessed from the lateral end surface 511 and communicating with the inner annular surface 513 and the outer annular surface 515, and a plurality of elastic hooks 516 between each pair of slits 515, each slot 54 having an expanded end 541 corresponding to the side end surface 511, and a narrow end 542 opposite to the expanded end 541 along the axis L and approaching to the stop surface 533, each slot 54 being defined by a slot bottom surface 543 between the inner ring surface 513 and the outer ring surface 514, a slot end surface 543' intersecting and connecting between the slot bottom surface 543 and the inner ring surface 512, and two slot side surfaces 544 extending from the expanded end 541 toward the narrow end 542 and intersecting and connecting between the slot bottom surface 543 and the inner ring surface 513, the slot side surfaces 544 being inclined (inclination about 2-3 degrees), the slot bottom surface 543 having two slot side edges 545 spaced apart around the axis L, an inner arc segment 546 intersecting and connecting between the slot side edges 545 and corresponding to the narrow end 542, and an outer arc segment 547 intersecting and connecting between the slot side edges 545 and corresponding to the expanded end 541, the groove bottom 543 is formed by the groove flanks 545, the inner arc segment 546 and the outer arc segment 547 together forming a trapezoidal profile. The large diameter portion 531 is tapered, and an inner diameter of an end of the inner annular surface 513 connected to the side end surface 511 is larger and gradually decreases toward the blade section 52. The slope is defined by the angle of the height of the trapezoidal profile with the slot side edges 545.
The pump front cover 60 is fastened to the front end surface of the base 10 by a plurality of screws and covers the impeller 50.
The rear cover 70 is fastened to the base 10 by a plurality of screws, and the rear end of the housing 31 of the motor unit 30 abuts against the inner side surface of the rear cover 70.
For a further understanding of the utility model, its role, the technical means employed, and the efficacy attained by its cooperation, it is believed that the utility model will be more fully and specifically understood from the following description.
Referring to fig. 1 again, after the canned magnetic pump is assembled, the positioning seat 20 is disposed outside the stator 32, and the base 10 is also disposed outside the positioning seat 20. The pump front cover 60 is secured to one side of the base 10, and the rear cover 70 is secured to the other side of the base 10. When the stator 32 of the motor unit 30 is powered on, the inner rotor 40 can be driven to rotate, and the inner rotor 40 synchronously drives the impeller 50 to rotate, so that the liquid introduced from the front side of the pump front cover 60 is pumped by the impeller 50 towards the outside of the pump front cover 60, and the purpose of pumping the liquid is achieved.
As shown in fig. 1, 3 to 7, when the inner rotor 40 and the impeller 50 are assembled, and the inner rotor 40 and the impeller 50 are pressed together along the axis L, and the front section 41 is sleeved in the large diameter portion 531, the protruding rib 413 is embedded in the embedding groove 54, the outer peripheral surface 412 is pressed against the large diameter portion 531, the first inclined surface 418 is pressed against the groove side surface 544, and the combination section 51 is forced to be supported and deformed outward and stores the resilience until the elastic hooks 516 are respectively embedded in the slots 414, the combination section 51 is biased and deformed inward by the resilience originally forced to be supported, and the inner rotor 40 and the impeller 50 are slightly away from each other along the axis L, the elastic hooks 516 are tightly fastened and generate a stop effect with respect to the slots 414, so as to ensure that the inner rotor 40 and the impeller 50 are firmly engaged, the impeller 50 is not separated from the inner rotor 40.
Therefore, the present invention utilizes the outer peripheral surface 412 of the inner rotor 40 to be in a conical surface shape and to be in a conical hole shape with the large diameter portion 531 of the impeller 50, so that the outer peripheral surface 412 can be tightly pressed and abutted when being sleeved with the large diameter portion 531, and can also ensure concentric alignment, and then the first inclined surface 418 of the protruding rib 413 is matched with the groove side surface 544 of the embedding groove 54 to be in an inclined surface shape and tightly pressed and abutted, after the elastic hook 516 is buckled and positioned relative to the embedding groove 414, the fit clearance between the contact surfaces of the inner rotor 40 and each part of the impeller 50 can be reduced, and the operation of the impeller 50 is also stable.
In summary, the canned magnetic pump of the present invention, which can stabilize the combination of the impeller and the inner rotor, has a simple overall structure, is easy to manufacture and assemble, and has the inner rotor 40 combined with the impeller 50 with good stability, thereby achieving the objective of the present invention.
Claims (6)
1. The utility model provides an assembly of impeller and inner rotor which characterized in that:
the inner rotor comprises a front section, a rear section and a shoulder, wherein the rear section is connected with the front section along an axis, the shoulder is connected with the joint of the front section and the rear section, the front section is provided with a front end surface, an outer peripheral surface is connected with the front end surface in an intersecting manner, a plurality of convex ribs are arranged around the axis at intervals and protrude from the outer peripheral surface, and a plurality of clamping grooves are arranged around the axis at intervals and are concavely arranged from the outer peripheral surface, the convex ribs extend from the front end surface to the shoulder, each convex rib is provided with a narrow end corresponding to the front end surface, a wide end corresponding to the shoulder, and at least one first inclined surface extending from the narrow end to the wide end;
an impeller including a coupling section coupled to the front section, and a blade section connected to the coupling section along the axis, the coupling section having a side end surface opposed to the shoulder, an inner annular surface surrounding the axis and defining a receiving hole, an outer annular surface opposed to the inner annular surface, a plurality of caulking grooves recessed from the inner annular surface and communicating with the side end surface, a plurality of pairs of slits recessed from the side end surface and communicating the inner annular surface and the outer annular surface, and a plurality of elastic hooks interposed between each pair of slits, each caulking groove having a flared end corresponding to the side end surface, a narrow end opposed to the flared end along the axis, each caulking groove defined by a groove bottom surface interposed between the inner annular surface and the outer annular surface, a groove end surface cross-connected between the groove bottom surface and the inner annular surface, and two groove side surfaces extending from the flared end toward the narrow end and cross-connected between the groove bottom surface and the inner annular surface, at least one groove side is in an inclined plane shape, when the convex ribs are embedded into the embedded grooves, the first inclined planes are tightly pressed and abutted against the corresponding groove sides, and the elastic clamping hooks are respectively embedded and buckled in the clamping grooves.
2. The impeller and inner rotor combination of claim 1, wherein: each fin of inner rotor still have with the periphery is the side portion that the interval set up, side portion has two centers on the axis is the face lateral margin that the interval set up, crossing connect in between the face lateral margin and corresponding to the preceding arc section of preceding terminal surface, and crossing connect in between the face lateral margin and corresponding to the back arc section of shoulder, side portion by the face lateral margin preceding arc section with back arc section constitutes trapezoidal profile jointly, the face lateral margin with respectively crossing link up one between the outer peripheral surface first inclined plane, the tank bottom surface of each caulking groove of impeller has two centers on the axis is the groove lateral margin that the interval set up, crossing connect in between the groove lateral margin and corresponding to the inner arc section of narrow end, and crossing connect in between the groove lateral margin and corresponding to the outer arc section of expansion end, the tank bottom surface by the groove lateral margin, The inner arc section and the outer arc section jointly form a trapezoidal outline.
3. The impeller and inner rotor combination of claim 1, wherein: the outer peripheral surface of the inner rotor is in a conical surface shape, the diameter of one end, connected with the front end face, of the outer peripheral surface is smaller, the diameter of one end, connected with the shoulder, of the outer peripheral surface is larger, the accommodating hole of the impeller is in a conical hole shape, the inner diameter of one end, connected with the side end face, of the inner ring surface is larger, and the inner diameter of the inner ring surface is gradually reduced towards the blade section.
4. The utility model provides a canned magnetic drive pump, can stabilize the associativity of impeller and inner rotor, contains base, positioning seat, motor element, pump protecgulum and hou gai, its characterized in that:
the base is made into a hollow cylinder shape, surrounds an axis and defines a containing hole;
the positioning seat is made into a hollow cylinder shape and is arranged in the accommodating hole of the base;
the motor unit comprises a shell arranged on the base, a stator sleeved between the shell and the base and the positioning seat, an inner rotor arranged in the shell, and an impeller connected with the inner rotor, wherein the inner rotor comprises a front section, a rear section connected with the front section along the axis, and a shoulder connected with the joint of the front section and the rear section, the front section is provided with a front end surface, an outer peripheral surface intersected and connected with the front end surface, a plurality of convex ribs arranged at intervals around the axis and protruded from the outer peripheral surface, and a plurality of clamping grooves arranged at intervals around the axis and concavely arranged from the outer peripheral surface, the convex ribs extend from the front end surface to the shoulder, each convex rib is provided with a narrow end corresponding to the front end surface, a wide end corresponding to the shoulder, and at least one first inclined surface extending from the narrow end to the wide end, the impeller comprises a combination section jointed with the front section and a blade section connected with the combination section along the axis, the combination section is provided with a side end surface opposite to the shoulder part, an inner ring surface surrounding the axis and defining a containing hole, an outer ring surface opposite to the inner ring surface, a plurality of caulking grooves concavely arranged on the inner ring surface and communicated to the side end surface, a plurality of pairs of cutting slits concavely arranged on the side end surface and communicated with the inner ring surface and the outer ring surface, and a plurality of elastic clamping hooks between each pair of cutting slits, each caulking groove is provided with a flaring end corresponding to the side end surface and a narrow end opposite to the flaring end along the axis, each caulking groove is defined by a groove bottom surface between the inner ring surface and the outer ring surface, a groove end surface intersected and connected between the groove bottom surface and the inner ring surface, and two groove side surfaces which extend from the flaring end to the narrow end and are intersected and connected between the groove bottom surface and the inner ring surface, at least one groove side surface is in an inclined surface shape, when the convex ribs are embedded into the embedded grooves, the first inclined surfaces are tightly pressed against the corresponding groove side surfaces, and the elastic clamping hooks are respectively embedded and buckled in the clamping grooves;
the pump front cover is arranged on the base and covers the impeller;
the back cover is opposite to the pump front cover along the axis and is positioned relative to the base.
5. The canned magnetic pump of claim 4, characterized in that: each fin of inner rotor still have with the periphery is the side portion that the interval set up, side portion has two centers on the axis is the face lateral margin that the interval set up, crossing connect in between the face lateral margin and corresponding to the preceding arc section of preceding terminal surface, and crossing connect in between the face lateral margin and corresponding to the back arc section of shoulder, side portion by the face lateral margin preceding arc section with back arc section constitutes trapezoidal profile jointly, the face lateral margin with respectively crossing link up one between the outer peripheral surface first inclined plane, the tank bottom surface of each caulking groove of impeller has two centers on the axis is the groove lateral margin that the interval set up, crossing connect in between the groove lateral margin and corresponding to the inner arc section of narrow end, and crossing connect in between the groove lateral margin and corresponding to the outer arc section of expansion end, the tank bottom surface by the groove lateral margin, The inner arc section and the outer arc section jointly form a trapezoidal outline.
6. The canned magnetic pump of claim 4, characterized in that: the outer peripheral surface of the inner rotor is in a conical surface shape, the diameter of one end, connected with the front end face, of the outer peripheral surface is smaller, the diameter of one end, connected with the shoulder, of the outer peripheral surface is larger, the accommodating hole of the impeller is in a conical hole shape, the inner diameter of one end, connected with the side end face, of the inner ring surface is larger, and the inner diameter of the inner ring surface is gradually reduced towards the blade section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122620371.8U CN216199214U (en) | 2021-10-29 | 2021-10-29 | Assembly of impeller and inner rotor and canned magnetic pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122620371.8U CN216199214U (en) | 2021-10-29 | 2021-10-29 | Assembly of impeller and inner rotor and canned magnetic pump |
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| Publication Number | Publication Date |
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| CN216199214U true CN216199214U (en) | 2022-04-05 |
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| CN202122620371.8U Active CN216199214U (en) | 2021-10-29 | 2021-10-29 | Assembly of impeller and inner rotor and canned magnetic pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023105953A (en) * | 2022-01-20 | 2023-08-01 | 日益電機股▲ふん▼有限公司 | Combination of inner rotor and impeller, and magnet pump |
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2021
- 2021-10-29 CN CN202122620371.8U patent/CN216199214U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023105953A (en) * | 2022-01-20 | 2023-08-01 | 日益電機股▲ふん▼有限公司 | Combination of inner rotor and impeller, and magnet pump |
| JP7341537B2 (en) | 2022-01-20 | 2023-09-11 | 日益電機股▲ふん▼有限公司 | Inner rotor and impeller combination and magnet pump |
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