CN208587307U - Submerged pump - Google Patents
Submerged pump Download PDFInfo
- Publication number
- CN208587307U CN208587307U CN201820696534.6U CN201820696534U CN208587307U CN 208587307 U CN208587307 U CN 208587307U CN 201820696534 U CN201820696534 U CN 201820696534U CN 208587307 U CN208587307 U CN 208587307U
- Authority
- CN
- China
- Prior art keywords
- axle
- section
- pump shaft
- diameter section
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of submerged pumps, including pump shaft, there is the first and second bearing along its axially spaced-apart arrangement on pump shaft, the lower end of the pump shaft includes the large-diameter section being sequentially arranged from top to bottom, middle diameter of axle section and small axle diameter section, small axle diameter section is inserted in impeller shaft hole and is connected with impeller, the axle sleeve being arranged in middle diameter of axle section is placed in first bearing, axle sleeve extends to the axle body periphery of large-diameter section, the axial table top that the stepped hole of axial table top and axle sleeve at big or middle diameter of axle section step is formed clearance fit in the axial direction.Pump shaft and the axle sleeve being set on pump shaft axle body are fitted in first bearing, the axial table top that the stepped hole of axial table top and axle sleeve at the big or middle diameter of axle section step of pump shaft is formed clearance fit in the axial direction, pump shaft appearance the case where compressing axially axle sleeve for avoiding elongation, extends the service life of axle sleeve.
Description
Technical field
The utility model relates to pump manufacturing technology field, specially a kind of submerged pump.
Background technique
Some fields need to pump the medium of special composition, as large iron and steel enterprise produce high-grade cold rolled automobile plate or
High-end silicon steel plate needs to pump pickling solution, and ingredient is the mixed acid such as 20% concentrated hydrochloric acid or hydrofluoric acid, and temperature is 80 DEG C -100
DEG C, aforesaid liquid is generally pumped by submerged pump, the axle sleeve being arranged on the pump shaft of existing submerged pump is directly to be fitted in bearing
Inner ring on, the medium temperature of submerged pump pumping is high, along with the heat that bearing working generates, causes bearing and pump shaft
Temperature increases rapidly, and pump shaft will be axial to be extended, and the Step Shaft shaft shoulder of pump shaft lower end will squeeze axle sleeve, and axle sleeve is easy to damage, contracting
The service life of short sleeve.
Utility model content
The purpose of the utility model is to provide a kind of submerged pumps for extending axle sleeve service life.
To achieve the goals above, the technical solution of use are as follows: a kind of submerged pump, including pump shaft have along its axis on pump shaft
To spaced apart first and second bearing, the lower end of the pump shaft includes the large-diameter section being sequentially arranged from top to bottom, the middle diameter of axle
Section and small axle diameter section, small axle diameter section are inserted in impeller shaft hole and are connected with impeller, and the axle sleeve being arranged in middle diameter of axle section is placed in the
In one bearing, axle sleeve extends to the axle body periphery of large-diameter section, the step of axial table top and axle sleeve at big or middle diameter of axle section step
The axial table top clearance fit in the axial direction that hole is formed.
The technical effect of the application are as follows: pump shaft and the axle sleeve being set on pump shaft axle body are fitted in first bearing,
The axial table top that the stepped hole of axial table top and axle sleeve at the big or middle diameter of axle section step of pump shaft is formed gap in the axial direction
Cooperation avoids pump shaft appearance the case where compressing axially axle sleeve of elongation, extends the service life of axle sleeve.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 be Fig. 1 in M at structure enlarged diagram；
Fig. 3 be Fig. 1 in N at structure enlarged diagram；
Fig. 4 is the cross-sectional view of bushing.
Specific embodiment
A kind of submerged pump, including pump shaft 10 have the first and second bearing 30,40 along its axially spaced-apart arrangement, institute on pump shaft 10
The lower end for stating pump shaft 10 includes the large-diameter section 11 being sequentially arranged from top to bottom, middle diameter of axle section 12 and small axle diameter section 13, small axis
Diameter section 13 is inserted in 1 axis hole of impeller and is connected with impeller 1, and the axle sleeve 20 being arranged in middle diameter of axle section 12 is placed in first bearing 30
Interior, axle sleeve 20 extends to the axle body periphery of large-diameter section 11, axial table top and axle sleeve 20 at big or middle diameter of axle section 11,12 steps
The axial table top clearance fit in the axial direction that is formed of stepped hole.
Pump shaft 10 and the axle sleeve 20 being set on 10 axle body of pump shaft are fitted in first bearing 30 in the application, pump shaft
The axial table top that the stepped hole of axial table top and axle sleeve 20 at 10 big or middle diameter of axle section 11,12 steps is formed is in the axial direction
Upper clearance fit avoids appearance the case where compressing axially axle sleeve 20 of pump shaft 10 of elongation, extends the service life of axle sleeve 20.
The stepped hole of axle sleeve 20 is made of large and small internal orifice dimension section 21,22, and large and small internal orifice dimension section 21,22 is respectively sleeved at pump
In the large-diameter section 11 of axis 10 and middle diameter of axle section 12,11 axle body of large-diameter section of pump shaft 10 and 21 inner wall of large diameter section of axle sleeve 20
Face clearance fit prevents pump shaft 10 from squeezing support axle sleeve 20 radially, is further ensured that the service life of axle sleeve 20.
The body of the small internal orifice dimension section 22 of the axle sleeve 20 is step-like, the small outer diameter that large and small outer diameter section 221,222 is constituted
Section 222 is fitted in first bearing 30, the inner face of axial table top and first bearing 30 that large and small outer diameter section 221,222 is constituted
Sealing cooperation is constituted, the inner wall of the large diameter section 21 of axle sleeve 20 and the large-diameter section 11 of pump shaft 10 constitute sealing cooperation, avoid
The inside and outside wall surface of corrosive media warp beam sleeve 20 leaks out in the large-diameter section 11 of pump shaft 10, prevents the large-diameter section 11 of pump shaft 10
Damage.
Further, the annular first for accommodating sealing ring is offered on the axial table top that large and small outer diameter section 221,222 is constituted
Groove 223 offers the second groove of annular 211 for accommodating sealing ring on the inner wall of the big internal orifice dimension section 21 of the axle sleeve 20, directly
It connects and sealing structure is set on axle sleeve 20, structure is simple, facilitates laying.
The hood-like fluorine rubber ring of ring is provided between the 1 axis hole inner hole wall of 31 outer end of inner ring and impeller of first bearing 30
50.50 one side of fluorine rubber ring plays the role of to seal between 1 axis hole of first bearing 30 and impeller, on the other hand, due to leaf
Wheel is 1 different from the thermal expansion coefficient of first bearing 30, first bearing 30 and impeller 1 difference of swell increment and in axis radially
The difference of upward swell increment can be compensated by the deformation of fluorine rubber ring 50, be further ensured that sealing effect.
The screw hole of pump shaft 10 and the specific connection scheme of impeller 1, bolt 91 from 1 middle part of impeller screws in the screw thread of 10 end of pump shaft
In hole, the screw hole at 92 screw-in impeller of capping, 1 middle part simultaneously blocks the screw hole.
10 axle body of pump shaft is corroded and damages in order to prevent, has corrosion-resistant packet on 11 axle body of large-diameter section of the pump shaft 10
Mould layer 111,21 inner wall of large diameter section of axle sleeve 20 and the 111 outer peripheral surface clearance fit of covered plastics layer of pump shaft 10.
The pump shaft 10 is located in support tube 60, and the flange 61 at 60 one end nozzle of support tube is connected with pump cover 71, pump cover
The first bearing 30 being arranged in the mounting hole at 71 middle parts is sliding bearing, the end cap 62 and second at 50 other end nozzle of support tube
The bearing block 41 of bearing 40 is connected, 10 one end end of pump shaft and the cooperation of first bearing 30, the other end be pierced by from the middle part of end cap 62 with
Transmission shaft 42 in second bearing 40 is connected.
Ring set 80 is arranged on 10 axle body of pump shaft at 62 middle through-hole of end cap, ring set 80 and 10 axle body of pump shaft seal
Cooperate, labyrinth sealing cooperation is constituted between 62 middle through-hole hole wall of 80 overcoat wall of ring set and end cap.
Claims (9)
1. a kind of submerged pump, including pump shaft (10), it is characterised in that: have on pump shaft (10) along its axially spaced-apart arrangement first,
Two bearings (30,40), the lower end of the pump shaft (10) include the large-diameter section (11) being sequentially arranged from top to bottom, middle diameter of axle section
(12) it is inserted in impeller (1) axis hole and is connected with impeller (1) with small axle diameter section (13), small axle diameter section (13), middle diameter of axle section
(12) axle sleeve (20) being arranged on is placed in first bearing (30), and axle sleeve (20) extends to the axle body periphery of large-diameter section (11),
The axial table top that the stepped hole of axial table top and axle sleeve (20) at diameter of axle section (11,12) step big or middle is formed is in the axial direction
Upper clearance fit.
2. submerged pump according to claim 1, it is characterised in that: the stepped hole of axle sleeve (20) by large and small internal diameter section (21,
22) it constitutes, large and small internal diameter section (21,22) is respectively sleeved in the large-diameter section (11) and middle diameter of axle section (12) of pump shaft (10), pumps
Large-diameter section (11) axle body of axis (10) and large diameter section (21) the inner wall clearance fit of axle sleeve (20).
3. submerged pump according to claim 2, it is characterised in that: the body of the small internal diameter section (22) of the axle sleeve (20) is
Large and small outer diameter section (221,222) is constituted step-like, and small outer diameter section (222) is fitted in first bearing (30), large and small outer diameter
The inner face of axial table top and first bearing (30) that section (221,222) is constituted constitutes sealing cooperation, the large diameter of axle sleeve (20)
The inner wall of section (21) and the large-diameter section (11) of pump shaft (10) constitute sealing cooperation.
4. submerged pump according to claim 3, it is characterised in that: the axial table top that large and small outer diameter section (221,222) is constituted
On offer the first groove of annular (223) for accommodating sealing ring, open up on the inner wall of the large diameter section (21) of the axle sleeve (20)
There is the second groove of annular (211) for accommodating sealing ring.
5. submerged pump according to claim 1, it is characterised in that: inner ring (31) outer end of first bearing (30) and impeller
(1) the hood-like fluorine rubber ring of ring (50) is provided between axis hole inner hole wall.
6. submerged pump according to claim 1, it is characterised in that: screw hole of the bolt (91) from the middle part of impeller (1) screws in pump
In the threaded hole of axis (10) end, covers the screw hole that (92) screw in the middle part of impeller (1) and block the screw hole.
7. submerged pump according to claim 2, it is characterised in that: have on large-diameter section (11) axle body of the pump shaft (10)
Corrosion-resistant covered plastics layer (111), between large diameter section (21) inner wall of axle sleeve (20) and covered plastics layer (111) outer peripheral surface of pump shaft (10)
Gap cooperation.
8. submerged pump according to claim 1, it is characterised in that: the pump shaft (10) is located in support tube (60), bearing
Flange (61) at pipe (60) one end nozzle is connected with pump cover (71), the first bearing being arranged in the mounting hole in the middle part of pump cover (71)
It (30) is sliding bearing, end cap (62) and bearing block (41) phase of second bearing (40) at support tube (60) other end nozzle
Even, pump shaft (10) one end end and first bearing (30) cooperation, the other end are pierced by and second bearing (40) from the middle part of end cap (62)
Interior transmission shaft (42) is connected.
9. submerged pump according to claim 8, it is characterised in that: pump shaft (10) axis at end cap (62) middle through-hole
It is arranged with it ring set (80), ring set (80) and the sealing of pump shaft (10) axle body cooperate, in ring set (80) overcoat wall and end cap (62)
Labyrinth sealing cooperation is constituted between portion's through hole wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820696534.6U CN208587307U (en) | 2018-05-11 | 2018-05-11 | Submerged pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820696534.6U CN208587307U (en) | 2018-05-11 | 2018-05-11 | Submerged pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208587307U true CN208587307U (en) | 2019-03-08 |
Family
ID=65533897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820696534.6U Active CN208587307U (en) | 2018-05-11 | 2018-05-11 | Submerged pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208587307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443173A (en) * | 2018-05-11 | 2018-08-24 | 安徽凯特泵业有限公司 | Submerged pump |
-
2018
- 2018-05-11 CN CN201820696534.6U patent/CN208587307U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443173A (en) * | 2018-05-11 | 2018-08-24 | 安徽凯特泵业有限公司 | Submerged pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208587307U (en) | Submerged pump | |
| CN102606490A (en) | Submerged pump | |
| CN204755409U (en) | Improved generation plastic pump | |
| CN108443173A (en) | Submerged pump | |
| CN103573681A (en) | PTFE-lined chemical pump | |
| CN204312361U (en) | A kind of Under Water Pumps being applicable to conveying high temperature media | |
| CN207621046U (en) | Long shaft submerged pump | |
| CN202732437U (en) | Fluoroplastic alloy submerged pump | |
| CN2937570Y (en) | Steel plastic compound corrosion risistance mixed flow pump | |
| CN203362636U (en) | Water pump | |
| CN106949098B (en) | Vertical pipeline pump | |
| CN102182701B (en) | Mechanical seal | |
| CN201386660Y (en) | Centrifugal water pump for automobile | |
| CN205877496U (en) | Anticorrosive connection structure of blind flange and pipeline | |
| CN212536221U (en) | Chemical pump | |
| CN102352945A (en) | Improved novel anti-corrosion rotary compensator | |
| CN202252576U (en) | Improved novel anti-corrosion rotating compensator | |
| CN203685658U (en) | Improved submerged chemical pump | |
| CN202746264U (en) | Fluorine-lined chemical engineering pump | |
| CN210461155U (en) | Hot water pump sealing device | |
| CN219755633U (en) | Anti-slip mechanical sealing element | |
| CN214170954U (en) | Fluoroplastics axial compressor pump impeller mounting structure | |
| CN203463299U (en) | Directly-coupled fluoroplastic centrifugal pump | |
| CN203702577U (en) | Submerged magnetic force pump for transporting poisonous, harmful and volatile liquid | |
| CN202170885U (en) | Mechanical seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |