CN208749597U - A kind of immersible pump with shaft anti-wear structure - Google Patents
A kind of immersible pump with shaft anti-wear structure Download PDFInfo
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- CN208749597U CN208749597U CN201821512222.1U CN201821512222U CN208749597U CN 208749597 U CN208749597 U CN 208749597U CN 201821512222 U CN201821512222 U CN 201821512222U CN 208749597 U CN208749597 U CN 208749597U
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Abstract
The utility model provides a kind of immersible pump with shaft anti-wear structure, belongs to pumps design manufacturing technology field.This immersible pump includes casing, stator in casing is set, the rotor of shaft in casing and drive shaft rotation is set, casing is equipped with oil pocket and blocks the oil cylinder cover of oil pocket, shaft passes through oil pocket, the lower end of shaft is installed with impeller, mechanical seal and outside framework oil seal are arranged with outside shaft, mechanical seal is located in oil pocket, outside framework oil seal is located at below mechanical seal, outer peripheral surface of the shaft between mechanical seal and outside framework oil seal is equipped with the shaft shoulder, axle sleeve is arranged in shaft, the upper end of axle sleeve leans with the shaft shoulder, the wheel hub of impeller and the lower end of axle sleeve lean, outside framework oil seal is set in outside axle sleeve.Immersible pump in the utility model passes through setting axle sleeve；It effectively prevent shaft to wear, in maintenance, does not need to replace whole shaft, it is only necessary to replace axle sleeve, and the above-mentioned mounting structure of axle sleeve is easily installed and dismantles, when repairing is more convenient.
Description
Technical field
The utility model belongs to water pump structure design field, is related to a kind of immersible pump, especially a kind of to have shaft
The immersible pump of anti-wear structure.
Background technique
Immersible pump is a kind of currently used water lift, and whole equipment pulls the plug work when use, by protruding into water
In cable power to the motor of immersible pump, eliminate transmission long axis, thus compact-sized, it is light-weight, install, use and shift
Convenient, motor generates centrifugal force by the rotation of pump shaft impeller, increases its energy liquid acting, acts in centrifugal force
Under, liquid is thrown toward impeller outlet along blade passage, and underground water is extracted earth's surface, can be used for domestic water, mine is speedily carried out rescue work, work
Industry cooling, field irrigation, seawater lift, steamer tune carry, it may also be used for fountain landscape；General flow can achieve 5m3/ h~
650m3/ h, lift can reach 10m~550m.
Chinese patent (notification number: CN206346921U, publication date: 2017-07-21) discloses a kind of novel protected machinery
The sewage pump pressure relief of sealing, including base, upper cover and the pump housing, base is interior to be equipped with shaft, stator and rotor, base and upper cover
It is tightly connected, base and the pump housing are tightly connected by sealing plate and constitute an oil pocket, are equipped with the leaf rotated with shaft in the pump housing
Wheel connects impeller in the bottom of shaft and configures outside framework oil seal, and oil pocket is interior equipped with mechanical seal and affixed；Positioned at outside framework oil seal with
Relief hole is provided on the pump housing between mechanical seal；It is tightly connected between base and upper cover by nut assembly；Base and pump
It is tightly connected by nut assembly between body and sealing plate, mechanical seal is connected on the pump housing by screw and sealing clamp；
The side of oil pocket is equipped with oil filler point.
Sewage pump configuration in above patent document has the following problems: 1, outside framework oil seal is directly contacted with shaft, and is led to
The material of normal shaft is No. 45 steel, easy to wear；2, it after running a period of time, is easy to grind groove in shaft, silt passes through recessed
Slot enters mechanical seal, will lead to mechanical seal failure, reduces its service life；3, shaft is easy in the place of outside framework oil seal friction
It gets rusty, outside framework oil seal not easy to disassemble；And when groove occur, when Yao Weixiu, needs replacing whole shaft, and disassembly shaft needs handle
Whole pump dismantling, it is not easy to repair.
Summary of the invention
The utility model aiming at the above problems existing in the prior art, provides a kind of latent with shaft anti-wear structure
Water pump, the technical problem to be solved by the utility model is to how to effectively prevent the abrasion of shaft in immersible pump and improve its peace
The convenience of dress and maintenance.
The purpose of this utility model can be realized by the following technical scheme:
A kind of immersible pump with shaft anti-wear structure including casing, the stator being arranged in casing, is arranged in casing
Interior shaft and the rotor of drive shaft rotation, which is characterized in that the casing is equipped with oil pocket and blocks the oil pocket
Oil cylinder cover, the shaft passes through the oil pocket, and the lower end of the shaft is installed with impeller, is arranged with outside the shaft mechanical close
Envelope and outside framework oil seal, the mechanical seal are located in the oil pocket, and the outside framework oil seal is located at below the mechanical seal, described
Outer peripheral surface of the shaft between the mechanical seal and outside framework oil seal is equipped with the shaft shoulder, is arranged with axle sleeve in the shaft, institute
The upper end and the shaft shoulder for stating axle sleeve lean, and the wheel hub of the impeller and the lower end of the axle sleeve lean, the skeleton oil
Big envelope is located at outside the axle sleeve.
The principle is as follows: immersible pump further includes the pump housing, and the pump housing is installed in below casing, and impeller is arranged in the pump housing, diving
After pump powers on, rotor drives shaft rotary motion, and shaft impeller rotates, and the liquid at pump housing inner impeller is with impeller
Blade rotate together, under the influence of centrifugal force, fly away from impeller and project outward, to be promoted in earth's surface.The technical program
The installation of middle shaft is equipped with mechanical seal and outside framework oil seal two sealed structures, prevents water flow from entering in the inner cavity of casing and damages
Immersible pump is also particularly provided with wear-resisting axle sleeve between outside framework oil seal and shaft；It effectively prevent shaft to wear, in maintenance, no
Need replacing whole shaft, it is only necessary to replace axle sleeve, save maintenance cost；The above-mentioned mounting structure of axle sleeve is convenient for simultaneously
Installation and removal, when repairing, which only needs to remove impeller, can remove axle sleeve, more convenient without entire immersible pump of dismantling.
In the above-mentioned immersible pump with shaft anti-wear structure, offered on the outer peripheral surface of the shaft cyclic annular recessed
Slot is embedded with O-ring seal in the annular recess, and the O-ring seal is in contact with the inner wall of the axle sleeve.It prevents in this way
Silt and liquid pass through in the gap between shaft and axle sleeve, to avoid damaging mechanical seal.
The wheel hub sleeve of impeller is in shaft and end face is arrived at axle sleeve, leans with the end face of axle sleeve, impeller passes through axis
The end face of set is limited and is positioned；When shaft rotates, due to the squeezing action of impeller, so that axle sleeve and shaft/impeller are together
Rotation；Axle sleeve is relatively stationary with shaft and O-ring seal, is relative motion with outside framework oil seal, when dive under water pump operation when,
Outside framework oil seal and axle sleeve carry out relative motion and generate friction.
In the above-mentioned immersible pump with shaft anti-wear structure, the axle sleeve exists with shaft clearance fit and the gap
0.1mm-0.2mm；The O-ring seal and axle sleeve are in close contact.Gap between axle sleeve and shaft can be such that O-ring seal has
There is the space for generating deformation, to form better seal effect.
In the above-mentioned immersible pump with shaft anti-wear structure, there are escape, the oil at the shaft shoulder of the shaft
Cylinder cap has mounting groove close to shaft side, and the outside framework oil seal is mounted in the mounting groove and matches with the axle sleeve interference
It closes.
In the above-mentioned immersible pump with shaft anti-wear structure, the material of the shaft is No. 45 steel, the axle sleeve
Material be hard ceramic or stainless steel.The hardness of axle sleeve be higher than shaft hardness, improve the wearability of axle sleeve, save at
The service life of this while raising immersible pump.
In the above-mentioned immersible pump with shaft anti-wear structure, control circuit, the machine are additionally provided in the casing
Shell is equipped with the attaching plug for connecting the control circuit；The upper end of the casing is fixedly provided with handle.
Compared with prior art, the installation of immersible pump shaft is equipped with mechanical seal and outside framework oil seal twice in the utility model
Sealing structure prevents water flow from entering and damages immersible pump in the inner cavity of casing, is also particularly provided between outside framework oil seal and shaft
Wear-resisting axle sleeve；It effectively prevent shaft to wear, in maintenance, does not need to replace whole shaft, it is only necessary to replace axle sleeve, save
Maintenance cost is saved；The above-mentioned mounting structure of axle sleeve is easily installed and dismantles simultaneously, and when repairing, which only needs to remove impeller, can use
Lower shaft sleeve, it is more convenient without entire immersible pump of dismantling.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of this immersible pump.
Fig. 2 is the partial enlargement structural representation in Fig. 1 at A.
In figure, 1, casing；2, stator；3, shaft；31, the shaft shoulder；32, annular recess；33, escape；4, rotor；5, oily
Chamber；6, oil cylinder cover；61, mounting groove；7, impeller；8, mechanical seal；9, outside framework oil seal；10, axle sleeve；11, O-ring seal；12, it controls
Circuit processed；13, attaching plug；14, handle.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As depicted in figs. 1 and 2, there is the immersible pump of shaft anti-wear structure to include casing 1, be arranged in casing 1 for this
The rotor 4 that stator 2, the shaft 3 being arranged in casing 1 and drive shaft 3 rotate, casing 1 are equipped with oil pocket 5 and block oil
The oil cylinder cover 6 of chamber 5, shaft 3 pass through oil pocket 5, and the lower end of shaft 3 is installed with impeller 7, mechanical seal 8 and bone are arranged with outside shaft 3
Frame oil sealing 9, mechanical seal 8 are located in oil pocket 5, and outside framework oil seal 9 is located at 8 lower section of mechanical seal, and shaft 3 is located at 8 He of mechanical seal
Outer peripheral surface between outside framework oil seal 9 is equipped with the shaft shoulder 31, is arranged with axle sleeve 10, upper end and 31 phase of the shaft shoulder of axle sleeve 10 in shaft 3
Against the lower end of the wheel hub and axle sleeve 10 of impeller 7 leans, and outside framework oil seal 9 is set in outside axle sleeve 10；Control is additionally provided in casing 1
Circuit 12 processed, casing 1 are equipped with the attaching plug 13 of connection control circuit 12；The upper end of casing 1 is fixedly provided with handle 14.Diving
After pump is powered on by attaching plug 13, rotor 4 drives 3 rotary motion of shaft, and 3 impeller 7 of shaft rotates, at impeller 7
Liquid rotated together with the blade of impeller 7, under the influence of centrifugal force, fly away from impeller 7 and project outward, to be promoted to ground
On table.The installation of shaft 3 is equipped with 9 two sealed structures of mechanical seal 8 and outside framework oil seal in the technical program, prevents water flow from entering
Immersible pump is damaged into the inner cavity of casing 1, wear-resisting axle sleeve 10 is also particularly provided between outside framework oil seal 9 and shaft 3；It is effectively anti-
Rotation stop axis 3 is worn, and in maintenance, does not need to replace whole shaft 3, it is only necessary to replace axle sleeve 10, save maintenance cost；
The above-mentioned mounting structure of axle sleeve 10 is easily installed and dismantles simultaneously, and when repairing, which only needs to remove impeller 7, can remove axle sleeve 10, no
It is more convenient with entire immersible pump of dismantling.
Further, it as shown in Fig. 2, offering annular recess 32 on the outer peripheral surface of shaft 3, is embedded in annular recess 32
O-ring seal 11, O-ring seal 11 are in contact with the inner wall of axle sleeve 10；Axle sleeve 10 exists with 3 clearance fit of shaft and the gap
0.1mm-0.2mm；Preferably 0.15mm；O-ring seal 11 and axle sleeve 10 are in close contact；There is escape at the shaft shoulder 31 of shaft 3
33, oil cylinder cover 6 has mounting groove 61 close to 3 side of shaft, and outside framework oil seal 9 is mounted in mounting groove 61 and matches with 10 interference of axle sleeve
It closes.Prevent silt and liquid from passing through in the gap between shaft 3 and axle sleeve 10 by the way that O-ring seal 11 is arranged, to avoid
Mechanical seal 8 is damaged；The wheel hub of impeller 7 is set in shaft 3 and arrives at axle sleeve 10, offsets with the end face of axle sleeve 10
It leans on, impeller 7 is limited and positioned by the end face of axle sleeve 10；When shaft 3 rotates, axle sleeve 10 relies on the squeezing action of impeller 7
As shaft 3 rotates；Axle sleeve 10 is relatively stationary with shaft 3 and O-ring seal 11, is relative motion with outside framework oil seal 9,
When dive under water pump operation when, outside framework oil seal 9 and axle sleeve 10 carry out relative motion and generate friction.Between between axle sleeve 10 and shaft 3
Gap can make O-ring seal 11 have the space for generating deformation, to form better seal effect.
The material of shaft 3 is No. 45 steel in the present embodiment, and the material of axle sleeve 10 is hard ceramic or stainless steel；Axle sleeve 10
Hardness be higher than shaft 3 hardness, improve axle sleeve 10 wearability, while saving cost improve immersible pump use the longevity
Life.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although 1, casing is used more herein；2, stator；3, shaft；31, the shaft shoulder；32, annular recess；33, withdrawing
Slot；4, rotor；5, oil pocket；6, oil cylinder cover；61, mounting groove；7, impeller；8, mechanical seal；9, outside framework oil seal；10, axle sleeve；11,O
Type sealing ring；12, control circuit；13, attaching plug；14, the terms such as handle, but the possibility using other terms is not precluded
Property.The use of these terms is merely for the convenience of describing and explaining the nature of the invention；It is construed as any
The additional limitation of one kind is all contrary to the spirit of the present invention.
Claims (6)
1. a kind of immersible pump with shaft anti-wear structure including casing (1), the stator (2) being arranged in casing (1), is set
Set the shaft (3) in casing (1) and the rotor (4) of drive shaft (3) rotation, which is characterized in that set on the casing (1)
There is oil pocket (5) and block the oil cylinder cover (6) of the oil pocket (5), the shaft (3) passes through the oil pocket (5), the shaft
(3) lower end is installed with impeller (7), is arranged with mechanical seal (8) and outside framework oil seal (9) outside the shaft (3), the machinery is close
Envelope (8) is located in the oil pocket (5), and the outside framework oil seal (9) is located at below the mechanical seal (8), and the shaft (3) is located at
Outer peripheral surface between the mechanical seal (8) and outside framework oil seal (9) is equipped with the shaft shoulder (31), is arranged with axis on the shaft (3)
It covers (10), upper end and the shaft shoulder (31) of the axle sleeve (10) lean, the wheel hub of the impeller (7) and the axle sleeve (10)
Lower end lean, the outside framework oil seal (9) is set in the axle sleeve (10) outside.
2. the immersible pump according to claim 1 with shaft anti-wear structure, which is characterized in that the shaft (3)
It offers annular recess (32), is embedded with O-ring seal (11) in the annular recess (32), the O-shaped sealing on outer peripheral surface
Circle (11) is in contact with the inner wall of the axle sleeve (10).
3. the immersible pump according to claim 2 with shaft anti-wear structure, which is characterized in that the axle sleeve (10) with
Shaft (3) the clearance fit and gap is in 0.1mm-0.2mm；The O-ring seal (11) and axle sleeve (10) are in close contact.
4. the immersible pump according to claim 3 with shaft anti-wear structure, which is characterized in that the shaft (3)
Have at the shaft shoulder (31) escape (33), the oil cylinder cover (6) has mounting groove (61) close to shaft (3) side, the skeleton oil
Envelope (9) is mounted in the mounting groove (61) and is interference fitted with the axle sleeve (10).
5. the immersible pump according to claim 1 or 2 or 3 or 4 with shaft anti-wear structure, which is characterized in that described
The material of shaft (3) is No. 45 steel, and the material of the axle sleeve (10) is hard ceramic or stainless steel.
6. the immersible pump according to claim 1 or 2 or 3 or 4 with shaft anti-wear structure, which is characterized in that described
It is additionally provided with control circuit (12) in casing (1), the casing (1) is equipped with the attaching plug for connecting the control circuit (12)
(13)；The upper end of the casing (1) is fixedly provided with handle (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512222.1U CN208749597U (en) | 2018-09-14 | 2018-09-14 | A kind of immersible pump with shaft anti-wear structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512222.1U CN208749597U (en) | 2018-09-14 | 2018-09-14 | A kind of immersible pump with shaft anti-wear structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208749597U true CN208749597U (en) | 2019-04-16 |
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ID=66084481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821512222.1U Active CN208749597U (en) | 2018-09-14 | 2018-09-14 | A kind of immersible pump with shaft anti-wear structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN208749597U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410482A (en) * | 2019-08-21 | 2019-11-05 | 宁波市洋通汽车配件有限公司 | Overrunning belt pulley |
| CN110454431A (en) * | 2019-09-17 | 2019-11-15 | 苏州沃达园林机械有限公司 | The cold lubrication system of oil of submersible pump mechanical seal |
| CN112032099A (en) * | 2020-08-07 | 2020-12-04 | 安徽埃斯克制泵有限公司 | Axial sealing structure of pump shaft of submersible pump |
| CN113250973A (en) * | 2021-05-26 | 2021-08-13 | 苏州美达斯机电有限公司 | Submersible pump with good sealing performance |
-
2018
- 2018-09-14 CN CN201821512222.1U patent/CN208749597U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410482A (en) * | 2019-08-21 | 2019-11-05 | 宁波市洋通汽车配件有限公司 | Overrunning belt pulley |
| CN110454431A (en) * | 2019-09-17 | 2019-11-15 | 苏州沃达园林机械有限公司 | The cold lubrication system of oil of submersible pump mechanical seal |
| CN112032099A (en) * | 2020-08-07 | 2020-12-04 | 安徽埃斯克制泵有限公司 | Axial sealing structure of pump shaft of submersible pump |
| CN113250973A (en) * | 2021-05-26 | 2021-08-13 | 苏州美达斯机电有限公司 | Submersible pump with good sealing performance |
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