CN209569194U - A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose apparatus - Google Patents
A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose apparatus Download PDFInfo
- Publication number
- CN209569194U CN209569194U CN201822149644.3U CN201822149644U CN209569194U CN 209569194 U CN209569194 U CN 209569194U CN 201822149644 U CN201822149644 U CN 201822149644U CN 209569194 U CN209569194 U CN 209569194U
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump shaft
- pump
- corrosion
- exempts
- 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 relates to water pump fields, exempt from corrosion and impeller anti-loose apparatus more particularly, to a kind of sewage submersible pump pump shaft.A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose apparatus, including pump shaft and impeller, pump shaft includes main shaft and front axle, axis hole is provided on impeller, front axle is located inside axis hole and is cooperatively connected with impeller, axle sleeve is equipped on the shaft shoulder of main shaft and front axle intersection, the end face of one end fitting impeller of axle sleeve, pump shaft is provided with the first machine envelope on pump shaft, the first machine is sealed by retaining ring in the one end of axle sleeve far from impeller carries out axially position, impeller passes through the fastener being arranged in axis hole and connect with pump shaft, one end in axis hole far from front axle is provided with sealing cover around fastener.The utility model is good to the sealing effect of pump shaft, and medium is made not contact pump shaft, greatly reduces sewage submersible pump pump shaft technology difficulty, has ensured pump shaft reliability, will not weaken motor performance.
Description
Technical field
The utility model relates to water pump fields, exempt from corrosion more particularly, to a kind of sewage submersible pump pump shaft and impeller anti-loose fills
It sets.
Background technique
Sewage submersible pump is electromechanical integration equipment, and motor shaft and pump shaft are same axises, and motor shaft needs permeability magnetic material,
Sewage is corrosive, and pump shaft needs corrosion resistant stainless steel, stainless steel magnetic conduction ability difference or non-magnetic, so in rotor yoke
Some cannot form into circuit by axis to portion's magnetic flux, weaken motor performance, especially 2 pole powers of motor reduce very much, institute
Be not suitable for doing motor shaft with stainless steel material.No. 45 steel of 7.5 kilowatts or less motor shafts, pump shaft 2Cr13,304, dual phase steel etc., two
A semiaxis completes fusion connection by friction welding technology, and the evaluation of this technical matters meets 7.5 kilowatts and following power requirement；11
Kilowatt or more sewage submersible pump pump shaft cannot use friction welding technological technology, be welded again after comprehensive connection, wherein each weld seam work
Skill evaluation difficulty is big, and the heat treatment of two kinds of materials of an axis is also very complicated, to the 6 extremely above motors, if medium uses when allowing
Whole 2Cr13；Because using non-clogging impeller hydraulic model, impeller anti-loose fastening aspect is adopted for domestic vertical submersible sewage pump manufacturing enterprise
With traditional structure, cause axis necessary and media contact, the locking fastening effect of impeller is bad, restricts submersible sewage pump in corrosive media
In application.
Utility model content
For the utility model primarily directed to the above problem, the sealing effect for providing a kind of pair of pump shaft is good, contacts medium not
Pump shaft greatly reduces sewage submersible pump pump shaft technology difficulty, has ensured pump shaft reliability, will not weaken motor performance, simultaneously
So that the reliable sewage submersible pump pump shaft of impeller anti-loose structure exempts from corrosion and impeller anti-loose apparatus.
The purpose of this utility model is mainly to be achieved by following proposal: a kind of sewage submersible pump pump shaft exempts to corrode
And impeller anti-loose apparatus, including pump shaft and impeller, the pump shaft include main shaft and front axle, are provided with axis on the impeller
Hole, the front axle are located inside axis hole and are cooperatively connected with impeller, cooperate on the main shaft and the shaft shoulder of front axle intersection
It is provided with axle sleeve, one end of the axle sleeve is bonded the end face of impeller, pump shaft is provided with the first machine on the pump shaft and seals,
The one end of the axle sleeve far from impeller seals the first machine by retaining ring and carries out axially position, and the impeller is by being arranged in axis
Fastener in hole is connect with pump shaft, and one end in the axis hole far from front axle is provided with sealing cover around fastener.Pump shaft
Including main shaft and front axle, axis hole is provided on impeller, front axle is located inside axis hole and is cooperatively connected with impeller, and main shaft and front axle are handed over
Be equipped with axle sleeve on the shaft shoulder at boundary, the end face of one end fitting impeller of axle sleeve, one end of axle sleeve is big end, axle sleeve it is another
One end is small end, and the big end of axle sleeve abuts the end face of impeller, pump shaft is provided with the first machine on pump shaft and seals, axle sleeve is far from impeller
One end by retaining ring to the first machine seal carry out axially position, axle sleeve to the first machine envelope it is direct axial is positioned with Assurance of Size, mention
High accuracy and reduce weakening of the fluting to axis intensity, improves impeller hub axially position stress intensity, material, axle sleeve
ZG2Cr13, austenitic stainless steel, dual phase steel etc. can be selected, impeller passes through the fastener being arranged in axis hole and connect with pump shaft, axis
One end in hole far from front axle is provided with sealing cover around fastener, compresses impeller by fastener, is compressed by sealing cover tight
Firmware is good to the sealing effect of pump shaft.
Preferably, the first sealing ring is provided between the axle sleeve and impeller, between the sealing cover and impeller
It is provided with the second sealing ring.It is provided with the first sealing ring between axle sleeve and impeller, it is close that second is provided between sealing cover and impeller
Seal enhances the sealing effect to pump shaft, and fastener is not influenced by corrosion in water.
Preferably, the sealing cover is fixed on impeller by soket head cap screw.Sealing cover passes through soket head cap screw
It is fixed on impeller, is reliably fastened between sealing cover and impeller with the soket head cap screw of circumference uniform distribution, it is all linked with one another, make fastener
Without loosening space.
Preferably, the fastener is fastening screw.Fastener is fastening screw, and fastening screw can compress impeller.
Preferably, the fastener is fastening nut.Fastener is fastening nut, and fastening nut can compress impeller.
Preferably, the structure of first sealing ring and the second sealing ring is identical, first sealing ring and
Two sealing rings include inner ring and outer rings, and air storing cavity, filling in the air storing cavity are provided between the inner ring and outer rings
There is gas, peripherally disposed in the outer ring there are multiple seal chambers, sliding is provided with sliding block in the seal chamber, institute
Seal chamber is separated into two independent cavitys by the sliding block stated, and sliding block is provided on the cavity far from inner ring side to be connected to outside
Ventilation channel, sliding block is provided with the pressure ports being connected to air storing cavity on the cavity of inner ring side.First sealing ring and
The structure of second sealing ring is identical, and the first sealing ring and the second sealing ring include inner ring and outer rings, sets between inner ring and outer rings
It is equipped with air storing cavity, is filled with gas in air storing cavity, peripherally disposed in outer ring to have multiple seal chambers, sliding is set in seal chamber
Be equipped with sliding block, seal chamber is separated into two independent cavitys by sliding block, sliding block be provided on the cavity far from inner ring side with outside
The ventilation channel of portion's connection, sliding block is provided with the pressure ports being connected to air storing cavity on the cavity of inner ring side, when first
When sealing ring or heated the second sealing ring, when gases are heated, they expand inside air storing cavity, and air storing cavity air pressure inside increases, to push
Sliding block makes sliding block mobile toward ventilation channel direction in seal chamber, so that the first sealing ring or the second sealing ring will not be whole swollen
It is swollen, conversely, the gas inside air storing cavity is by cold events, air storing cavity inside gas when the first sealing ring or the second sealing ring are cooled
Pressure reduces, to make sliding block mobile toward pressure ports direction in seal chamber under pressure difference, so that the first sealing ring or the
Two sealing rings will not overall shrinkage, so that the sealing effect of the first sealing ring or the second sealing ring is adjusted, so that sealing effect is steady
It is fixed, and improve the service life of the first sealing ring and the second sealing ring；Meanwhile extraneous sewage enters sealing from ventilation channel
Behind intracavitary portion, it can also be flowed by gas when air storing cavity is squeezed and push sliding block to which sewage to be discharged inside seal chamber, sealing
Effect is good.
Preferably, being provided with the support bar in air storing cavity between the outer ring and inner ring.Outer ring and inner ring it
Between be provided with the support bar in air storing cavity, the setting of support bar improves the bonding strength between inner ring and outer ring.
Therefore, a kind of sewage submersible pump pump shaft of the utility model exempts from corrosion and impeller anti-loose apparatus has following advantages:
The utility model structure is simple, good to the sealing effect of pump shaft, and medium is made not contact pump shaft, and pump shaft can be same with motor shaft
Axis greatly reduces sewage submersible pump pump shaft technology difficulty, has ensured pump shaft reliability, expanded use scope, will not weaken
Motor performance, while making impeller anti-loose structure reliable.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of embodiment 1 in the utility model.
Attached drawing 2 is the structural schematic diagram of embodiment 2 in the utility model.
Attached drawing 3 is the structural schematic diagram of the first sealing ring or the second sealing ring in the utility model.
Attached drawing 4 is the top view of the first sealing ring or the second sealing ring in the utility model.
Illustrate: the first machine of 1- envelope, 2- retaining ring, the second machine of 3- seal, 4- axle sleeve, the first sealing ring of 5-, 6- axis hole, in 7-
Hex screw, 8- main shaft, 9- front axle, 10- impeller, 11- fastening screw, the second sealing ring of 12-, 13- sealing cover, 14- outer ring,
15- air storing cavity, 16- inner ring, 17- ventilation channel, 18- seal chamber, 19- sliding block, 20- pressure ports, 21- support bar, 22- fastening
Nut.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment 1:
As shown in Fig. 1,3,4, a kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose apparatus, including pump shaft and impeller
10, pump shaft includes main shaft 8 and front axle 9, and axis hole 6 is provided on impeller 10, and front axle 9 is located at 6 inside of axis hole and cooperates with impeller 10
Axle sleeve 4, the end face of one end fitting impeller 10 of axle sleeve 4, axis are equipped on the shaft shoulder of connection, main shaft 8 and 9 intersection of front axle
One end of set 4 is big end, and the other end of axle sleeve 4 is small end, and the big end of axle sleeve 4 abuts the end face of impeller 10, surrounds pump on pump shaft
Axis is provided with the first machine envelope 1, and the one end of axle sleeve 4 far from impeller 10 carries out axially position, axle sleeve 4 to the first machine envelope 1 by retaining ring 2
It is direct axial to the first machine envelope 1 to be positioned with Assurance of Size, it improves accuracy and reduces the weakening slotted to axis intensity, improve
Impeller 10 wheel hub axially position stress intensity, is provided with the second machine envelope 3 on axle sleeve 4, the first machine envelope 1 and the second machine seal 3 it is another
Stationary ring limit is all sealed by machine in side, and 4 material of axle sleeve can select ZG2Cr13, austenitic stainless steel, dual phase steel etc., and impeller 10 is logical
It crosses the fastener being arranged in axis hole 6 to connect with pump shaft, one end in axis hole 6 far from front axle 9 is provided with sealing around fastener
Lid 13, fastener are fastening screw 11, and fastening screw 11 can compress impeller 10, compress impeller 10 by fastening screw 11, pass through
Sealing cover 13 compresses fastening screw 11, good to the sealing effect of pump shaft, and sealing cover 13 is fixed on impeller 10 by soket head cap screw 7
On, it is reliably fastened between sealing cover 13 and impeller 10 with the soket head cap screw 7 of circumference uniform distribution, it is all linked with one another, make fastening screw 11
Without loosening space.
It is provided with the first sealing ring 5 between axle sleeve 4 and impeller 10, the second sealing is provided between sealing cover 13 and impeller 10
Circle 12, enhances the sealing effect to pump shaft, and fastener is not influenced by corrosion in water.
First sealing ring 5 is identical with the structure of the second sealing ring 12, and the first sealing ring 5 and the second sealing ring 12 include interior
Ring 16 and outer ring 14 are provided with air storing cavity 15, gas, edge in outer ring 14 are filled in air storing cavity 15 between inner ring 16 and outer ring 14
Circumferencial direction is provided with multiple seal chambers 18, and sliding is provided with sliding block 19 in seal chamber 18, and seal chamber 18 is separated by sliding block 19
Two independent cavitys, sliding block 19 are provided with the ventilation channel 17 being connected to outside, sliding block on the cavity far from 16 side of inner ring
19 are provided with the pressure ports 20 being connected to air storing cavity 15 on the cavity of 16 side of inner ring, when the first sealing ring 5 or the second
When sealing ring 12 is heated, when gases are heated, they expand inside air storing cavity 15, and 15 air pressure inside of air storing cavity increases, to push sliding block 19
So that sliding block 19 is mobile toward ventilation 17 direction of channel in seal chamber 18, so that the first sealing ring 5 or the second sealing ring 12 will not
Bulk expansion, conversely, the gas inside air storing cavity 15 is by cold events, storage when the first sealing ring 5 or the second sealing ring 12 are cooled
15 air pressure inside of air cavity reduces, thus make sliding block 19 mobile toward 20 direction of pressure ports in seal chamber 18 under pressure difference,
So that the first sealing ring 5 or the second sealing ring 12 will not overall shrinkage, to adjust the first sealing ring 5 or the second sealing ring 12
Sealing effect so that sealing effect is stablized, and improves the service life of the first sealing ring 5 and the second sealing ring 12；Meanwhile outside
After the sewage on boundary enters 18 inside of seal chamber from ventilation channel 17, it also can flow to push by gas when air storing cavity 15 is squeezed and slide
For block 19 to which sewage to be discharged inside seal chamber 18, sealing effect is good；It is provided between outer ring 14 and inner ring 16 positioned at air storing cavity
The setting of support bar 21 in 15, support bar 21 improves the bonding strength between inner ring 16 and outer ring 14.
The quantity of seal chamber 18 is four, and four seal chambers 18 are uniformly distributed along the circumferencial direction of outer ring 14, is imitated in sealing
The regulating effect at a temperature of good varying environment can be played on the basis of fruit is good again.
Embodiment 2:
As shown in Fig. 2, a kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose apparatus, including pump shaft and impeller 10, pump
Axis includes main shaft 8 and front axle 9, and axis hole 6 is provided on impeller 10, and front axle 9 is located at 6 inside of axis hole and is cooperatively connected with impeller 10,
Axle sleeve 4 is equipped on the shaft shoulder of main shaft 8 and 9 intersection of front axle, one end of axle sleeve 4 is bonded the end face of impeller 10, axle sleeve 4
One end is big end, and the other end of axle sleeve 4 is small end, and the big end of axle sleeve 4 abuts the end face of impeller 10, is arranged on pump shaft around pump shaft
There is the first machine to seal 1, the one end of axle sleeve 4 far from impeller 10 carries out axially position to the first machine envelope 1 by retaining ring 2, and axle sleeve 4 is to first
Machine envelope 1 is direct axial to be positioned with Assurance of Size, is improved accuracy and is reduced the weakening slotted to axis intensity, improves impeller
10 wheel hub axially position stress intensities are provided with the second machine envelope 3 on axle sleeve 4, and 4 material of axle sleeve can select ZG2Cr13, austenite not
Become rusty steel, dual phase steel etc., and impeller 10 passes through the fastener being arranged in axis hole 6 and connect with pump shaft, the one of separate front axle 9 in axis hole 6
End is provided with sealing cover 13 around fastener, and fastener is fastening nut 22, and fastening nut 22 can compress impeller 10, pass through fastening
Nut 22 compresses impeller 10, compresses fastening nut 22 by sealing cover 13, good to the sealing effect of pump shaft, sealing cover 13 passes through interior
Hex screw 7 is fixed on impeller 10, is reliably fastened between sealing cover 13 and impeller 10 with the soket head cap screw 7 of circumference uniform distribution,
It is all linked with one another, make fastening nut 22 without loosening space.
It should be understood that the embodiment is merely to illustrate the utility model rather than limitation the scope of the utility model.Furthermore
It should be understood that after reading the content taught by the present invention, those skilled in the art can make the utility model various
Change or modification, these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (7)
1. a kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose apparatus, which is characterized in that described including pump shaft and impeller
Pump shaft includes main shaft and front axle, and axis hole is provided on the impeller, and the front axle is located inside axis hole and cooperates with impeller
Axle sleeve is equipped on the shaft shoulder of connection, the main shaft and front axle intersection, one end fitting impeller of the axle sleeve
End face is provided with the first machine envelope around pump shaft on the pump shaft, and the one end of the axle sleeve far from impeller is by retaining ring to the
One machine envelope carries out axially position, and the impeller passes through the fastener being arranged in axis hole and connect with pump shaft, in the axis hole
One end far from front axle is provided with sealing cover around fastener.
2. a kind of sewage submersible pump pump shaft according to claim 1 exempts from corrosion and impeller anti-loose apparatus, which is characterized in that institute
It is provided with the first sealing ring between the axle sleeve and impeller stated, is provided with the second sealing ring between the sealing cover and axis hole.
3. a kind of sewage submersible pump pump shaft according to claim 1 exempts from corrosion and impeller anti-loose apparatus, which is characterized in that institute
The sealing cover stated is fixed on impeller by soket head cap screw.
4. a kind of sewage submersible pump pump shaft according to claim 1 or 2 or 3 exempts from corrosion and impeller anti-loose apparatus, feature
It is, the fastener is fastening screw.
5. a kind of sewage submersible pump pump shaft according to claim 1 or 2 or 3 exempts from corrosion and impeller anti-loose apparatus, feature
It is, the fastener is fastening nut.
6. a kind of sewage submersible pump pump shaft according to claim 2 exempts from corrosion and impeller anti-loose apparatus, which is characterized in that institute
The structure of the first sealing ring and the second sealing ring stated is identical, first sealing ring and the second sealing ring include inner ring and
Outer ring is provided with air storing cavity between the inner ring and outer rings, gas, edge in the outer ring is filled in the air storing cavity
Circumferencial direction is provided with multiple seal chambers, and sliding is provided with sliding block in the seal chamber, and the sliding block separates seal chamber
At two independent cavitys, sliding block is provided with the ventilation channel being connected to outside on the cavity far from inner ring side, and sliding block is close
The pressure ports being connected to air storing cavity are provided on the cavity of inner ring side.
7. a kind of sewage submersible pump pump shaft according to claim 6 exempts from corrosion and impeller anti-loose apparatus, which is characterized in that institute
The support bar in air storing cavity is provided between the outer ring stated and inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822149644.3U CN209569194U (en) | 2018-12-20 | 2018-12-20 | A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822149644.3U CN209569194U (en) | 2018-12-20 | 2018-12-20 | A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209569194U true CN209569194U (en) | 2019-11-01 |
Family
ID=68330573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822149644.3U Active CN209569194U (en) | 2018-12-20 | 2018-12-20 | A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209569194U (en) |
-
2018
- 2018-12-20 CN CN201822149644.3U patent/CN209569194U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105281495B (en) | The coolant jacket of motor and the method for assembling coolant jacket and the motor equipped with coolant jacket | |
| CN209569194U (en) | A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose apparatus | |
| CN108063514A (en) | A kind of motor sealing structure | |
| CN105422857A (en) | Sealing ring used for pipe gastight connection | |
| CN206992861U (en) | Motor case and there is its motor | |
| CN109812447A (en) | A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose structure | |
| CN100451408C (en) | Encapsulated rotary valve | |
| CN202503381U (en) | Permanent-magnet synchronous motor rotor of direct air cooling hollow-core shaft type | |
| CN206234364U (en) | A kind of high speed air-cooler magnetic fluid seal device | |
| CN212480134U (en) | Automatic control valve for high-temperature dust-containing gas | |
| CN207814450U (en) | Elastic sealing ring and sealing mechanism | |
| CN202118293U (en) | Integral high-pressure ball valve | |
| CN103307302A (en) | Top-mounted low temperature floating ball valve | |
| CN208281536U (en) | A kind of welding fabrication wedge-type single shutter gate valve | |
| CN106640581A (en) | Airbag pump with better sealing performance | |
| CN106425339A (en) | Large-caliber low-temperature filter and manufacturing method | |
| CN105402408A (en) | Air-sealing mechanism used for neodymium iron boron storage barrel | |
| CN102788026A (en) | Anti-leaking sealing method of full-sealing liquid pump | |
| CN206936650U (en) | A kind of sealing air supply system that can carry vacuum and positive/negative-pressure | |
| CN213711944U (en) | Assembly-free anti-corrosion valve | |
| CN205689959U (en) | High sealing whirl compensator | |
| CN205938046U (en) | Insulation construction of valve body | |
| CN204553852U (en) | Leakproof electromagnetic valve structure and differential pressure valve apparatus | |
| CN210602163U (en) | Novel heat recovery water cover | |
| CN103967749B (en) | Linearkompressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |