CN217873313U - Dry-wet separation magnetic transmission pump unit - Google Patents
Dry-wet separation magnetic transmission pump unit Download PDFInfo
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- CN217873313U CN217873313U CN202221306428.5U CN202221306428U CN217873313U CN 217873313 U CN217873313 U CN 217873313U CN 202221306428 U CN202221306428 U CN 202221306428U CN 217873313 U CN217873313 U CN 217873313U
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Abstract
The utility model relates to a dry-wet separated magnetic transmission pump unit, which comprises a pump head component, an impeller cover, a plane sealing element, a shielding sealing tank, a front bearing support, a front bearing, an axial stop bearing, a stop bearing rubber sleeve, a rear bearing, a bearing elastic supporting component, a rotor component, a stator component and a rotating shaft; the front bearing support is provided with a through hole for discharging liquid in the impeller cabin where the impeller is located, and the through hole is communicated with the internal gap of the shielding sealing tank; the liquid discharged through the through hole fills the inner gap of the shielding sealing tank; the rotating shaft is provided with a needle hole for discharging liquid in the inner gap. Compared with the prior art, the utility model has the advantages of impurity, reduction shielding in the sealed jar of discharge shielding brought into by liquid hinder and vortex in the sealed jar.
Description
Technical Field
The utility model relates to a magnetic drive pump unit especially relates to a magnetic drive pump unit of wet separation futilely.
Background
The wet operation pump set is divided into a pump head part and a motor part, the motor part is connected with the pump head through a stator casing, and the wet operation pump set separates a moving part from a stator part in design, namely magnetic transmission is carried out, so that a dynamic sealing part of a dry operation pump set is omitted, and the water leakage problem is fundamentally eliminated.
The retrieved Chinese patent publication No. CN108691781A discloses a pump assembly which is provided with a rotor shielding sleeve, a rotor assembly and a bearing are contained in the rotor shielding sleeve, the rotor assembly comprises a rotating shaft, a permanent magnet and the like, liquid flowing from a water inlet of an impeller serves as a lubricating medium between the rotating shaft and the bearing, meanwhile, a Chinese patent CN1104040182A introduces a disc-shaped bearing seat, the bearing seat is matched with a patent CN108691781A for use, a through hole is formed in the plane of the bearing seat, the through hole is used for allowing the liquid in a high pressure area to pass through and fill the rotor shielding sleeve, and then the through hole of the rotating shaft penetrates out to form circulation of the liquid inside and outside the rotor shielding sleeve, but how to quickly complete the inside and outside circulation of the liquid in the rotor shielding sleeve, so that the problem that poor lubrication between the rotating shaft and the bearing is required to be solved is solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dry-wet separation magnetic transmission pump unit for overcoming the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
according to one aspect of the utility model, a dry-wet separation magnetic transmission pump unit is provided, which comprises a pump head component, an impeller cover, a plane sealing element, a shielding sealing tank, a front bearing support, a front bearing, an axial stop bearing, a stop bearing rubber sleeve, a rear bearing, a bearing elastic supporting component, a rotor component, a stator component and a rotating shaft; the front bearing support is provided with a through hole for discharging liquid in the impeller cabin where the impeller is located, and the through hole is communicated with the internal gap of the shielding sealing tank; the liquid discharged through the through hole fills the inner gap of the shielding sealing tank;
the rotating shaft is provided with a needle hole for discharging liquid in the inner gap.
As a preferable technical scheme, a plurality of through holes are formed to form a fluid channel A; the needle hole is arranged at the top of the rotating shaft to form a fluid channel D, and the rotating shaft is provided with a large-diameter hole for communicating the needle hole with the internal gap to form a fluid channel C; the sectional area of the large-diameter hole is larger than that of the through hole, and the sectional area of the through hole is larger than that of the needle eye.
As a preferred technical scheme, the needle eye is provided with an upper end face and a lower end face which are connected with the large-diameter hole, and the upper end face and the lower end face are respectively vertical to the needle eye.
As a preferable technical scheme, a fit clearance for liquid discharge is arranged between the rotating shaft and the front bearing, and the fit clearance is communicated with the fluid channel A.
As a preferable technical scheme, the front bearing support is provided with a first flange, a second flange, a first folded edge, a second folded edge and a third folded edge, and the through holes are distributed on the second folded edge.
Preferably, the first inner diameter of the shield seal can is circumferentially fixed to the second flange of the front bearing retainer.
Preferably, the first flange of the shielding and sealing can fixes the third flange of the front bearing support in the axial direction.
Preferably, the second inner diameter of the shielding and sealing can fixes the outer diameter of the cylinder of the bearing elastic support component in the circumferential direction, and the step surface of the shielding and sealing can fixes the end surface of the bearing elastic support component in the axial direction.
As a preferable technical solution, the magnetic transmission pump unit further includes a bearing installation chamber, and the bearing installation chamber is in interference fit with the front bearing and fixes the front bearing in the diameter direction and the axial direction.
As the preferred technical scheme, the bearing elastic support assembly is in interference fit with the rear bearing, and the rear bearing is fixed in the diameter direction and the axial direction.
Compared with the prior art, the utility model has the advantages of it is following:
1) The utility model is provided with a through hole on the front bearing support to form a fluid channel A; meanwhile, the needle hole is reserved at the top end of the rotating shaft to form a fluid channel D, so that heat generated by friction between the rotating shaft and the front bearing and the rear bearing is taken away, impurities brought by liquid in the shielding sealing tank are discharged, and water resistance and vortex in the shielding sealing tank are reduced.
2) The impeller is because the effect of receiving rotatory centrifugal force and impeller cabin height low water pressure difference and be partial to the impeller water inlet naturally, therefore the impeller during operation drives the pivot, lets axial footstep bearing in the rotor subassembly all the time in being in axial load, has increaseed the friction loss of rotor subassembly the utility model discloses when well shield sealing tank inside liquid pressure is greater than outside liquid pressure, liquid jets out from the pinhole that the pivot top was reserved, and release pressure has guaranteed that the axial force of impeller is balanced.
Drawings
FIG. 1 is a schematic cross-sectional view of the magnetic drive pump assembly for wet-dry separation according to the present invention;
FIG. 2 is a schematic view of the sectional structure of the front bearing support and the shielding sealing can of the present invention;
FIG. 3 is a schematic view of the internal cross-sectional structure of the shielding sealing tank of the present invention;
FIG. 4 (a) is a schematic view of a three-dimensional structure of the front bearing support of the present invention;
fig. 4 (b) is a schematic sectional view of the front bearing support of the present invention;
fig. 5 is a schematic structural view of the bearing elastic support assembly of the present invention;
FIG. 6 is a schematic cross-sectional view of the shielding sealing tank of the present invention;
fig. 7 is a schematic cross-sectional view of the rotor assembly of the present invention;
FIG. 8 is a schematic cross-sectional view of the rotating shaft of the present invention;
fig. 9 is a liquid circuit diagram inside the shielding and sealing tank of the present invention;
fig. 10 is an enlarged view of the liquid circuit of the present invention.
Wherein, 1 is a pump head component, 2 is an impeller, 3 is an impeller cover, 4 is a plane sealing element, 5 is a shielding sealing tank, 6 is a front bearing support, 7 is a front bearing, 8 is an axial stop bearing, 9 is a stop bearing rubber sleeve, 10 is a rear bearing, 11 is a bearing elastic supporting component, 12 is a rotor component, 13 is a stator component, and 14 is a rotating shaft;
15 is an impeller cabin, 16 is a water inlet, 17 is a water outlet, 18 is an internal gap, 19 is a first flange, 20 is a second flange, 21 is a first folding edge, 22 is a second folding edge, and 23 is a third folding edge; 24 is a junction;
25 is a through hole, 26 is a cylinder outer diameter, 27 is an end face, 28 is a bearing mounting chamber, 29 is a needle eye, 30 is an upper end face, 31 is a lower end face, 32 is a large diameter hole, 33 is a first inner diameter, 34 is a second inner diameter, and 35 is a stepped surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
As shown in fig. 1, 4 (a) and 4 (b), a dry-wet separation magnetic transmission pump unit comprises a pump head assembly 1, an impeller 2, an impeller cover 3, a planar seal 4, a shielding seal tank 5, a front bearing retainer 6, a front bearing 7, an axial stop bearing 8, a stop bearing rubber sleeve 9, a rear bearing 10, a bearing elastic support assembly 11, a rotor assembly 12, a stator assembly 13 and a rotating shaft 14; the device is characterized in that the front bearing support 6 is provided with a through hole 25 for discharging liquid in the impeller chamber 15 where the impeller 2 is positioned, and the through hole 25 is communicated with the internal gap 18 of the shielding sealing tank 5; the liquid discharged through the through-hole 25 fills the inner gap 18 of the shield seal can 5, as shown in fig. 3;
as shown in fig. 7, the rotating shaft 14 is provided with an eye of a needle 29 for discharging the liquid in the internal gap 18.
As shown in fig. 2, the principle of the present invention is as follows: the rotor assembly 12 is shielded and sealed relative to the stator assembly 13 by the shield seal pot 5, and when the impeller 2 rotates at high speed, the outer diameter of the impeller is maximum to form an accelerated centrifugal force, so that a high pressure area is formed in the impeller chamber 15, a low pressure area is formed at the water inlet 16 of the impeller 2, liquid in the high pressure area is discharged from the larger water outlet 17 of the impeller chamber 15, and is also discharged from the confluence port 24 of the front bearing support 6 through the through hole 25, and the liquid discharged from the confluence port 24 fills the inner gap 18 of the shield seal pot 5 through the through hole 25.
A plurality of through holes 25 are arranged to form a fluid channel A; the needle eye 29 is arranged at the top of the rotating shaft 14 to form a fluid channel D, and the rotating shaft 14 is provided with a large-diameter hole 32 for communicating the needle eye 29 with the internal gap 18 to form a fluid channel C. The fluid channel C is more than A and more than D.
The needle eye 29 is provided with an upper end face 30 and a lower end face 31 which are connected with the large-diameter hole 32, and the upper end face 30 and the lower end face 31 are respectively vertical to the needle eye 29.
And a fit clearance for liquid discharge is arranged between the rotating shaft 14 and the front bearing 7, and is communicated with the fluid channel A.
The front bearing support 6 according to fig. 4 (a) and 4 (b) is provided with a first flange 19, a second flange 20, a first fold 21, a second fold 22 and a third fold 23, said through holes 25 being distributed over the second fold 22.
As shown in fig. 6, the first inner diameter 33 of the shield sealing can 5 fixes the second flange 20 of the front bearing retainer 6 in the circumferential direction, and the first folded edge 21 of the shield sealing can 5 fixes the third folded edge 23 of the front bearing retainer 6 in the axial direction.
As shown in fig. 5, the second inner diameter 34 of the shielding sealing can 5 fixes the cylindrical outer diameter 26 of the bearing elastic support assembly 11 in the circumferential direction, and the step surface 35 of the shielding sealing can 5 fixes the end surface 27 of the bearing elastic support assembly 11 in the axial direction.
As shown in fig. 4 (b), the magnetic force transmission pump unit further includes a bearing installation chamber 28, and the bearing installation chamber 28 is in interference fit with the front bearing 7 and fixes the front bearing 7 in the diameter direction and the axial direction.
The bearing elastic support assembly 11 is in interference fit with the rear bearing 10, and fixes the rear bearing 10 in the diameter direction and the axial direction.
The front bearing 7 and the rear bearing 10 together support the rotor assembly 12 and define the rotor assembly 12 and the rotating shaft 14 in the circumferential direction. As shown in fig. 9 and 10, when the gap 18 inside the shield seal can 5 is filled with the liquid, the liquid can be ejected from the needle hole of the rotary shaft 14 in the direction of a-B-C-D; or can be ejected from the matching clearance of the rotating shaft 14 and the front bearing 7 along the direction of A-B-E-F or A-E-F.
Through the technical characteristic, the utility model discloses have following effect of showing:
1) In order to take away heat generated by friction between the rotating shaft 14 and the front bearing 7 and the rear bearing 10, discharge impurities brought by liquid in the shielding sealing tank 5 and reduce water resistance and eddy in the shielding sealing tank 5, the front bearing support 6 is designed to be radially outwards provided with a first flange 19, a second flange 20, a first folded edge 21, a second folded edge 22, a third folded edge 23 and a through hole 25, the second folded edge 22 is provided with a plurality of distributed through holes 25, and the through holes 25 are matched with the bearing elastic support assembly 11 to form a fluid channel A-B; the top end of the rotating shaft 14 is provided with a needle eye 29, and the shape of the needle eye 29 is designed to be that an upper end surface 30 and a lower end surface 31 are connected with a large-diameter hole 32 to form a fluid channel C-D.
2) Impeller 2 is because receive the effect of rotatory centrifugal force and 2 high low water pressure differences in the impeller cabin and naturally be partial to 2 water inlets 16 of impeller, consequently impeller 2 during operation drives pivot 14, lets axial footstep bearing 8 in rotor subassembly 12 be in axial load all the time, has increaseed rotor subassembly 12 friction loss the utility model discloses when the inside liquid pressure of well shield seal jar 5 is greater than outside liquid pressure, the pinhole 29 that liquid was reserved from the 14 tops of pivot jets out, and release pressure has guaranteed impeller 2's axial force balance.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A dry-wet separated magnetic transmission pump unit comprises a pump head assembly (1), an impeller (2), an impeller cover (3), a plane sealing element (4), a shielding sealing tank (5), a front bearing support (6), a front bearing (7), an axial stop bearing (8), a stop bearing rubber sleeve (9), a rear bearing (10), a bearing elastic supporting assembly (11), a rotor assembly (12), a stator assembly (13) and a rotating shaft (14); the device is characterized in that a through hole (25) for discharging liquid in an impeller cabin (15) where an impeller (2) is located is arranged on the front bearing support (6), and the through hole (25) is communicated with an inner gap (18) of the shielding sealing tank (5); the liquid discharged through the through hole (25) fills the inner gap (18) of the shield seal can (5);
the rotating shaft (14) is provided with a needle eye (29) for discharging the liquid in the internal gap (18).
2. The magnetic transmission pump unit for dry-wet separation according to claim 1, characterized in that the through holes (25) are provided in plurality to form a fluid channel A; the needle eye (29) is arranged at the top of the rotating shaft (14) to form a fluid channel D, and the rotating shaft (14) is provided with a large-diameter hole (32) for communicating the needle eye (29) with the internal gap (18) to form a fluid channel C; the sectional area of the large-diameter hole (32) is larger than that of the through hole (25), and the sectional area of the through hole (25) is larger than that of the needle eye (29).
3. The dry-wet separation magnetic transmission pump unit as claimed in claim 2, characterized in that the needle eye (29) is provided with an upper end face (30) and a lower end face (31) connected with the large-diameter hole (32), and the upper end face (30) and the lower end face (31) are respectively perpendicular to the needle eye (29).
4. A dry-wet separation magnetic transmission pump unit according to claim 2, characterized in that a fit clearance for liquid discharge is provided between the rotating shaft (14) and the front bearing (7), and the fit clearance is communicated with the fluid passage a.
5. A wet and dry magnetic force transmission pump assembly according to claim 1, characterized in that the front bearing support (6) is provided with a first flange (19), a second flange (20), a first flange (21), a second flange (22) and a third flange (23), and the through holes (25) are distributed on the second flange (22).
6. A wet and dry magnetic force transmission pump assembly according to claim 5, characterized in that the first inner diameter (33) of the shield can (5) circumferentially secures the second flange (20) of the front bearing support (6).
7. A wet and dry separating magnetically driven pump assembly according to claim 5, characterized in that the first fold (21) of the shield can (5) secures the third fold (23) of the front bearing support (6) in the axial direction.
8. The magnetic transmission pump unit for dry-wet separation according to claim 1, wherein the second inner diameter (34) of the shielding sealed tank (5) is used for fixing the cylindrical outer diameter (26) of the bearing elastic support component (11) in the circumferential direction, and the step surface (35) of the shielding sealed tank (5) is used for fixing the end surface (27) of the bearing elastic support component (11) in the axial direction.
9. A dry-wet separation magnetic force transmission pump assembly according to claim 1, characterized in that the magnetic force transmission pump assembly further comprises a bearing installation chamber (28), the bearing installation chamber (28) is in interference fit with the front bearing (7) and fixes the front bearing (7) in the diameter direction and the axial direction.
10. The dry-wet separation magnetic transmission pump unit as claimed in claim 1, wherein the bearing elastic support assembly (11) is in interference fit with the rear bearing (10) to fix the rear bearing (10) in the diameter direction and the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221306428.5U CN217873313U (en) | 2022-05-28 | 2022-05-28 | Dry-wet separation magnetic transmission pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221306428.5U CN217873313U (en) | 2022-05-28 | 2022-05-28 | Dry-wet separation magnetic transmission pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217873313U true CN217873313U (en) | 2022-11-22 |
Family
ID=84091337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221306428.5U Active CN217873313U (en) | 2022-05-28 | 2022-05-28 | Dry-wet separation magnetic transmission pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217873313U (en) |
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2022
- 2022-05-28 CN CN202221306428.5U patent/CN217873313U/en active Active
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