CN208686610U - Submerged pump - Google Patents
Submerged pump Download PDFInfo
- Publication number
- CN208686610U CN208686610U CN201821484672.4U CN201821484672U CN208686610U CN 208686610 U CN208686610 U CN 208686610U CN 201821484672 U CN201821484672 U CN 201821484672U CN 208686610 U CN208686610 U CN 208686610U
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- Prior art keywords
- bearing
- main shaft
- impeller
- grease chamber
- bearing block
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Abstract
The utility model discloses a kind of submerged pumps, include a motor, one motor cabinet, one pump cover and a pump housing, a connecting tube is equipped between the motor cabinet and the pump housing, a main shaft is equipped in the connecting tube, the main the tip of the axis is equipped with a removable impeller, the impeller is equipped with back blade, the impeller inlays a helixseal set, the pump cover is equipped with a first mechanical seal and the first mechanical seal is socketed on the main shaft, the pump housing is equipped with a grease chamber bearing block, the grease chamber bearing block is equipped with a machine and seals bearing gland, the machine envelope bearing gland is equipped with a second mechanical seal and the second mechanical seal is socketed on the main shaft.The decompression sealing to form two levels is covered with the helixseal inlayed by the back blade of impeller, third level sealing is then taken on by the first mechanical seal of lower part, machine envelope running environment is substantially improved, extends the service life of machine envelope.
Description
Technical field
The utility model relates to a kind of pumps, more precisely, being a kind of submerged pump.
Background technique
Submerged pump has been widely used in the industries such as petroleum, chemical industry, steel, papermaking, printing and dyeing, environmental protection and has conveyed various corrosivity
Liquid and clear water, since impeller submergence can directly initiate in a liquid；The axle suspension arm lengths of traditional submerged pump are longer, stability
Bad, when operation, is also easy to produce vibration and noise, seriously affects service life；Existing submerged pump is when conveyer belt particle-liquid medium
Machine envelope, guide bearing are washed away, serious wear, and are easy leakage pollution environment, reduces operational reliability.
There are following clearly disadvantageous for submerged pump at present: 1) pump rotor bearing is undesirable, and one is by rolling bearing and sliding
Bearing combination support, sliding bearing are normally immersed into liquid, as the abrasion of when containing solid particle is very fast in liquid, the service life is shorter；Its
Two are arranged on mounting seat using one group of rolling bearing, then the too long amount of deflection of axle suspension arm is big, and the diameter of axle is big compared with clumsy axial force；
Axis is longer, and processing is more difficult, and concentricity is more difficult to guarantee, and Lower shaft sleeve, sliding bearing are easy to produce eccentric wear, causes to vibrate big, noise
Greatly, service life is restricted.2) bearing use environment is extensive, without any dust-proof, waterproof measure, influences the service life of bearing.3)
Seal form is simple, a kind of seal form is used only, i.e. packing seal or mechanical seal, effect is poor, the service life is short, needs often to tie up
Shield；4) sealing structure is simple, and mechanical seal running environment is undesirable, seals erosive wear to machine when conveyer belt particle-liquid medium
Seriously, sealing performance is restricted, the service life is short；5) it is not easy to observe since submerged pump is faulty and judge, status is existing is somebody's turn to do at present
Without any error protection and cautionary measure, failure cannot be excluded and be safeguarded in time pump；These existing defects constrain operation
Reliability increases operation use, maintenance cost.
Utility model content
The utility model mainly solves technical problem present in the prior art, to provide a kind of submerged pump.
Above technical problems of the utility model are mainly solved by the following technical scheme:
The utility model discloses a kind of submerged pumps, include a motor, a motor cabinet, a pump cover and a pump housing, spy
Sign is, a connecting tube is equipped between the motor cabinet and the pump housing, is equipped with a main shaft in the connecting tube, described is electronic
Machine is connected with the main shaft, and the main the tip of the axis is equipped with a removable impeller, and the impeller is located at described
In the pump housing, the impeller is equipped with back blade, and the impeller inlays a helixseal set, and the helixseal covers set
On the main shaft, the pump cover is equipped with a first mechanical seal and the first mechanical seal is socketed in the master
On axis, the pump housing is equipped with a grease chamber bearing block, and a sealing is formed between the pump cover and the grease chamber bearing block
Grease chamber, the grease chamber bearing block are equipped with a machine and seal bearing gland, and it is close that the machine envelope bearing gland is equipped with a second machinery
Envelope and the second mechanical seal are socketed on the main shaft.
As the utility model preferred embodiment, the second mechanical seal is by a machine seal washer and once spring collar
Positioning.
As the utility model preferred embodiment, the lower section of the motor cabinet is equipped with a bearing block and a bottom plate, institute
The bearing block stated couples with the connecting tube and is sealed by one first sealing ring, the connecting tube and the grease chamber axis
It holds seat connection and is sealed by one second sealing ring, the pump cover couples with the pump housing and sealed by a third sealing ring, institute
The bottom for the pump housing stated is equipped with a sucking short tube, and the side of the pump housing is equipped with an outlet tube, and the bottom plate is equipped with one
Divide semi join flange and a conduit, the conduit and the connecting tube are welded to connect, and the outlet tube is equipped with one
Fast acting flange.
As the utility model preferred embodiment, the helixseal set passes through a screw, a spring washer and one
Impeller washer is connect with the principal shaft locking, and the impeller washer is equipped with pin anti-rotation, between the main shaft and impeller
Torque is transmitted by a key, the inner ring of a double-row bearing is sleeved on the main shaft and is positioned by a upper spring retainer ring, described
The outer ring of double-row bearing be arranged in the grease chamber bearing block and joined by the machine envelope bearing gland and grease chamber bearing block
Positioning is connect, the inner ring of a spring bearing is sleeved on the main shaft and is positioned by a sleeve nut, the spring bearing
Outer ring is arranged in the bearing block, and the spring bearing is equipped with a bearing gland, the top of the bearing gland
Equipped with an outside framework oil seal, the main shaft is connected with the motor shaft of the motor by a shaft coupling.
As the utility model preferred embodiment, the top of the grease chamber bearing block is equipped with a guard ring, described
An oil water probe is equipped in Seal Oil room, the signal wire of the oil water probe is drawn by the connecting tube and conduit.
The submerged pump of the utility model has the advantage that with optimal Multi-layer sealing structure, passes through the back of impeller
Blade and the helixseal inlayed cover the decompression sealing to form two levels, then take on third layer by the first mechanical seal of lower part
Secondary sealing, if the level sealing of front three is all failed, when leakage fluid enters in Seal Oil room under the action of machinery oil pressure,
Still formed the 4th oil pressure sealing effect, finally still have the mechanical seal on top as entire Multi-layer sealing last
Road barrier can still adhere to being sealed bearing protection.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the submerged pump of the utility model；
Fig. 2 is the partial enlargement diagram of the submerged pump in Fig. 1.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
As depicted in figs. 1 and 2, which includes external structure: the motor 1 for being located at top couples with motor cabinet 2,
2 bearing block 4 of motor cabinet couples with bottom plate 3, and bearing block 4, which couples with connecting tube 5 and is equipped with the first sealing ring 40, to be sealed, connecting tube 5
Couple with grease chamber bearing block 6 and be equipped with the second sealing ring 41 and seal, 6 pump cover 7 of grease chamber bearing block couples with the pump housing 8 and is equipped with third
Sealing ring 42 seals, and the pump housing 8 couples with sucking short tube 9, and the pump housing 8 couples with outlet tube 13, divides semi join flange 14 and bottom plate 3
It connects, conduit 35 and 5 weld connection of connecting tube, the outlet tube 13 are equipped with fast acting flange 36.
The submerged pump 1 further includes internal structure: the impeller 10 being located in the pump housing 8 is inlayed helixseal 11 sleeve integratings of set and is mounted in
It is locked and is coupled by 15 spring washer of screw, 17 impeller washer 16 on main shaft 12, and 18 anti-rotation of pin, main shaft 12 is arranged in impeller washer 16
Set key 19 transmits torque between impeller 10, and the impeller 10 carries back blade 39；Pump cover 7 is equipped with 20 sets of first mechanical seal
On main shaft 12, machine envelope bearing gland 24 is equipped with second mechanical seal 21 and is sleeved on main shaft 12 by the lower Spring Card of machine seal washer 22
23 positioning of circle；25 inner ring of double-row bearing is sleeved on main shaft 12, is positioned by upper spring retainer ring 26, and 25 outer ring of double-row bearing is mounted in oil
In room bearing block 6, and couple positioning with grease chamber bearing block 6 by machine envelope bearing gland 24,6 top of grease chamber bearing block is equipped with
Guard ring 37 is dust-proof to double-row bearing 25, soiling protective；27 inner ring of bearing is sleeved on main shaft 12 and is positioned by sleeve nut 30, axis
27 outer rings are held in bearing block 4, and couple positioning with bearing block 4 by bearing gland 29,29 top of bearing gland is set
Have that outside framework oil seal is dust-proof to bearing 27, waterproofing protection；Main shaft 12 is driven with motor shaft 31 by joint member 32；Oil water probe
33 couple with grease chamber bearing block 6 protrude into sealing grease chamber 38 in, signal wire 34 by 5 conduit 35 of connecting tube extraction.
The rotor support structure of the submerged pump of the utility model is further detailed below: being located at 12 bearing of main shaft
27 rotors pumped with 25 combination support of double-row bearing, 27 inner ring of bearing is on main shaft 12 by the positioning of sleeve nut 28, outer ring by axis
Pressure cap 29 positions, and bearing gland 29 is equipped with outside framework oil seal and plays the role of dust-proof, waterproofing protection；25 inner ring of double-row bearing is by upper
Spring collar 26 positioning, outer ring by machine envelope bearing gland 24 position, 6 top of grease chamber bearing block be equipped with guard ring 37 play it is dust-proof,
Soiling protective effect.
The multi-level axle envelope function of the utility model submerged pump is illustrated below: firstly, being located at the impeller in the pump housing 8
10 by forming first decompression sealing after the included rotation of back blade 39；Secondly, 11 rotation of helixseal set being embedded on impeller 10
When form second decompression sealing；Third, the first mechanical seal 20 being located on pump cover 7 form third level sealing；4th, pump cover
7 couple the sealing grease chamber 38 formed with grease chamber bearing block 6, and the sealing of the 4th level oil pressure is formed under the buoyancy of oil；5th,
The second mechanical seal 21 being located on machine envelope bearing gland 24 is last one of sealing barrier, if it is more front sealing at all levels occur
The case where to fail, second mechanical seal 21 still can be sealed protection to double-row bearing 25；In addition, oil water probe 33 be located at it is close
In oil sealing room 38, sealing leak situation can be monitored, when detect leakage reach failure warning generate signal when, by signal wire 34
Output alarm guarantees maintenance in time and replacement vulnerable part.In particular, the back blade 39 carried by impeller 10 is depressured for the first time, and
Helixseal covers 11 2 decompressions；On the one hand 20 pressure-bearing load of first mechanical seal is alleviated, on the other hand can effectively stopped
Grain enters, and first mechanical seal 20 is washed away and worn, and improves sealing reliability and service life；In addition, due to sealing grease chamber 38
Interior machinery oil can form good lubrication, cooling effect to first mechanical seal 20, second mechanical seal 21, improve machine Feng Yun
Row environment, prolongs the service life.
The submerged pump of the utility model has the following technical effect that
1, there is the combination of ideal rotor bearing, i.e., by a kind of rotor bearing that rolling bearing combines, large carrying capacity, fortune
Row is reliable and stable, and prolong the service life length, long service life.
2, with excellent bearing running environment, dust-proof, waterproof measure is set in bearing portion, ensure that bearing runs ring
The interference of external factor is not received in border；Good Multi-layer sealing and failure warning measure ensure that bearing running environment is not leaked
The etch of liquid.
3, there is optimal Multi-layer sealing structure, cover to form two with the helixseal inlayed by the back blade of impeller
The decompression of level seals, and then takes on third level sealing by the first mechanical seal of lower part, if the level sealing of front three is all
Failure still forms the effect of the 4th oil pressure sealing when leakage fluid enters in Seal Oil room under the action of machinery oil pressure,
Finally still there is last one barrier of the second mechanical seal on top as entire Multi-layer sealing, can still adhere to carrying out bearing close
Envelope protection.
4, with optimal mechanical seal running environment, due to back blade and the helixseal set inlayed, rotary
At secondary decompression, alleviate the pressure-bearing load of mechanical seal, make sealing easily it is reliable, and effectively prevent liquid in particle into
Enter, avoid to machine seal erosive wear, especially Seal Oil indoor machinery oil mechanical seal can be formed it is good lubrication, it is cold
But it acts on, substantially improves machine envelope running environment, extend the service life of machine envelope.
5, can timely fault detection, be located at the indoor oil water probe of Seal Oil, at any time monitor sealing leak situation, when
Alarm signal is generated when detecting leakage failure, is sent by signal wire and issues alarm, guarantees maintenance in time and replacement vulnerable part,
Improve long-term running reliability.
Not limited to this, any change or replacement expected without creative work should all be covered in the utility model
Protection scope within.Therefore, the protection scope of the utility model should be determined by the scope of protection defined in the claims.
Claims (5)
1. a kind of submerged pump includes a motor (1), a motor cabinet (2), a pump cover (7) and a pump housing (8), which is characterized in that
A connecting tube (5) are equipped between the motor cabinet (2) and the pump housing (8), are equipped with a main shaft (12) in the connecting tube (5),
The motor (1) is connected with the main shaft (12), and the end of the main shaft (12) is equipped with a removable impeller
(10), the impeller (10) is located in the pump housing (8), and the impeller (10) is equipped with back blade (39), described
Impeller (10) inlays a helixseal set (11), and the helixseal set (11) is sleeved on the main shaft (12), institute
The pump cover (7) stated is equipped with a first mechanical seal (20) and the first mechanical seal (20) is socketed in the main shaft (12)
On, the pump housing (8) is equipped with a grease chamber bearing block (6), between the pump cover (7) and the grease chamber bearing block (6)
Sealing grease chamber (38) is formed, the grease chamber bearing block (6) is equipped with machine envelope bearing gland (24), and the machine seals bearing
Gland (24) is equipped with a second mechanical seal (21) and the second mechanical seal (21) is socketed on the main shaft (12).
2. submerged pump according to claim 1, which is characterized in that described second mechanical seal (21) the You Yiji seal washer
(22) and once spring collar (23) positions.
3. submerged pump according to claim 1 or 2, which is characterized in that the lower section of the motor cabinet (2) is equipped with a bearing
Seat (4) and a bottom plate (3), the bearing block (4) couples with the connecting tube (5) and to pass through one first sealing ring (40) close
Envelope, the connecting tube (5) couples with the grease chamber bearing block (6) and is sealed by one second sealing ring (41), described
Pump cover (7) couples with the pump housing (8) and is sealed by a third sealing ring (42), and the bottom of the pump housing (8) is equipped with a sucking
The side of short tube (9), the pump housing (8) is equipped with an outlet tube (13), and the bottom plate (3) is equipped with one point of semi join flange
(14) it is welded to connect with a conduit (35), the conduit (35) and the connecting tube (5), the outlet tube (13)
Equipped with a fast acting flange (36).
4. submerged pump according to claim 3, which is characterized in that the helixseal set (11) passes through a screw
(15), a spring washer (17) and an impeller washer (16) and the main shaft (12), which are locked, connects, the impeller washer
(16) it is equipped with pin (18) anti-rotation, transmits torque, a biserial by a key (19) between the main shaft (12) and impeller (10)
The inner ring of bearing (25) is sleeved on the main shaft (12) and is positioned by a upper spring retainer ring (26), the double-row bearing
(25) outer ring is arranged in the grease chamber bearing block (6) and by machine envelope bearing gland (24) and grease chamber bearing block
(6) connection positioning, the inner ring of a spring bearing (27) are sleeved on the main shaft (12) and are positioned by a sleeve nut (30),
The outer ring of the spring bearing (27) is arranged in the bearing block (4), and the spring bearing (27) is equipped with an axis
The top of pressure cap (29), the bearing gland (29) is equipped with outside framework oil seal, the main shaft (12) and the motor
(1) motor shaft (31) is connected by a shaft coupling (32).
5. submerged pump according to claim 4, which is characterized in that it is anti-that the top of the grease chamber bearing block (6) is equipped with one
Guard ring (37), the sealing grease chamber (38) is interior to be equipped with an oil water probe (33), the signal wire of the oil water probe (33)
(34) it is drawn by the connecting tube (5) and conduit (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821484672.4U CN208686610U (en) | 2018-09-12 | 2018-09-12 | Submerged pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821484672.4U CN208686610U (en) | 2018-09-12 | 2018-09-12 | Submerged pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208686610U true CN208686610U (en) | 2019-04-02 |
Family
ID=65888637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821484672.4U Active CN208686610U (en) | 2018-09-12 | 2018-09-12 | Submerged pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208686610U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953167A (en) * | 2018-09-12 | 2018-12-07 | 泰州泰东泵业有限公司 | submerged pump |
| CN111878408A (en) * | 2020-08-12 | 2020-11-03 | 广州市顺创科技有限公司 | Drilling fluid sand pump for oil exploitation and use method thereof |
-
2018
- 2018-09-12 CN CN201821484672.4U patent/CN208686610U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953167A (en) * | 2018-09-12 | 2018-12-07 | 泰州泰东泵业有限公司 | submerged pump |
| CN111878408A (en) * | 2020-08-12 | 2020-11-03 | 广州市顺创科技有限公司 | Drilling fluid sand pump for oil exploitation and use method thereof |
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