CN103321938A - Segmental structure for stirring head and main shaft of multi-stage submerged desilting pump - Google Patents
Segmental structure for stirring head and main shaft of multi-stage submerged desilting pump Download PDFInfo
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- CN103321938A CN103321938A CN2013101851463A CN201310185146A CN103321938A CN 103321938 A CN103321938 A CN 103321938A CN 2013101851463 A CN2013101851463 A CN 2013101851463A CN 201310185146 A CN201310185146 A CN 201310185146A CN 103321938 A CN103321938 A CN 103321938A
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- main shaft
- stirring
- head
- impeller
- lower main
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Abstract
The invention provides a segmental structure for the stirring head and the main shaft of a multi-stage submerged desilting pump and relates to a submersed desilting machine. The innovation of the segmental structure lies in that a lower main shaft segment where the stirring head is located is in threaded connection with an upper main shaft segment where the motor and an impeller are located; a disk structure is arranged at the top end of the lower main shaft segment; two one-fourth circular arc-shaped slotted holes are symmetrically formed in the disk structure; meanwhile, four threads are uniformly distributed on an impeller hub in positions corresponding to the slotted holes. During assembly, after the lower main shaft segment where the stirring head is located is arranged in place, two stainless steel flat head slotted screws are mounted symmetrically. On the working condition that the stirring head is not needed, the lower main shaft segment can be replaced by an impeller nut. The segmental structure has the benefits that the length of a main shaft is shortened, the universality of the main shaft is improved, the machining difficulty and the production cost are lowered, and the production efficiency of enterprises is increased.
Description
Affiliated technical field
The present invention is the segmental structure of a kind of multistage submersible slurry dredging pump stirring-head and main shaft, relates to underwater desilting machinery, belongs to universal machine manufacturing technology field.
Background technique
Multistage submersible slurry dredging pump is motor and the coaxial pump integral type waterpower machinery of working in the medium that slips into of water pump, these pump flow passage components adopt the abrasion resistance alloy manufacturing, has preferably wear resistance, flow channels is large, is applicable to carry the media such as the silt that contains larger solid particle, ore pulp, coal slurry, sandstone.Water pump installs stirring-head additional at the pump shaft tail end, and stirring-head rotates synchronously with impeller, the sludge spray of deposition can be hit into turbulent flow, makes water pump in the situation that there is not the auxiliary device such as high pressure water gun to realize that high concentration carries.Contain granule medium and stirred, stir evenly under the jet water column effect that the stirring-head rotation forms, enter the pump first stage impeller by filter plate, pressurize step by step through multi-stage impeller, medium is discharged by outlet via the interlayer between motor and the water guide cover again after flowing out from impeller.Multistage submersible slurry dredging pump of the present invention is the bearing structure before not improving, and stirring-head and impeller, motor are assemblied on the same axis, and main shaft is very long, and rigidity is relatively poor, is unfavorable for turning processing.Clamping difficulty during processing is subjected to cutting force and effect of vibration, and circle is beated large, affect machining accuracy, causes and reports loss rate, reject rate high.Need simultaneously special production line manufacturing, improve cost of production, reduce manufacturing efficiency.Be fixing stirring-head, need very long axle sleeve at the pump shaft tail end, and install the top nut additional, also improved cost.
Summary of the invention
In order to solve the long technical barrier of multistage submersible slurry dredging pump main shaft, the invention provides the segmental structure of a kind of stirring-head and main shaft, motor and impeller place main shaft (upper main shaft section) length is to the first stage impeller wheel hub, stirring-head place axle (lower main axis section) adopts with upper main shaft section and is threaded, and adopts simultaneously screw and first stage impeller wheel hub to fix mutual rotation with the screw pair that prevents from causing because of long-term operation.This structure has shortened main axis length, can use the main shaft of similar size pump to carry out the product manufacturing, increases the main shaft versatility, greatly reduces production costs, and improves enterprises production efficiency.Under the operating mode of unwanted stirring-head, also can with the dismounting of stirring-head place axle, install impeller nut additional, thereby reduce greatly difficulty of processing and cost.
The present invention solves the technological scheme that its technical barrier adopts:
Shorten former main axis length, make main shaft section tail end to first stage impeller wheel hub position slightly on the upper side, the lower main axis section adopts with upper main shaft section and is threaded.For preventing the mutual rotation of screw pair, there is disc structure on lower main axis section top, be arranged symmetrically with 2 1/4 arc-shaped slots of processing, simultaneously at the uniform tapping of impeller hub correct position 4 places (accompanying drawing 3), in when assembling, wait stirring-head place axle to put in place after, symmetrical two stainless tack slotted screws are installed, on guaranteeing the lower main axis section be threaded screw with locking in, have the assembling can accomplished simple.If multistage submersible slurry dredging pump operating mode of living in does not need stirring-head, then can directly replace stirring-head place axle with impeller nut, and fixedly anti-loose method is consistent with it.Adopt this segmental structure, shortened main axis length, increased the versatility of main shaft, reduce spindle processing difficulty and cost.
The segmental structure of stirring-head of the present invention and main shaft can be realized making by machining, and lower main axis section and interchangeable impeller nut adopt round steel directly to process.Shaft part and impeller nut top machining internal thread, 2 logical Milling Process of 1/4 arc-shaped slot form on its top disk.Upper main shaft section of the present invention can adopt original shaft part, thereby greatly reduces production costs, and increases the versatility of main shaft.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing 1 is not adopt the present invention and the main sectional view that uses the multistage submersible slurry dredging pump of conventional construction main shaft structure; Among the figure, 1. cable, 2. pump discharge, 3. motor wiring, 4. motor housing, 5. motor stator, 6. rotor, 7. main shaft, 8. water guide cover, 9. bearing, 10. grease chamber, 11. sealing, 12. second level impellers, 13. water outlet spiral cases, 14. stator, 15. first order impellers, 16. axle sleeves, 17. filter plate, 18. stirring-heads, 19. double nuts.
The motor of multistage submersible slurry dredging pump, main shaft and stirring-head are assemblied on the same axis, and main shaft is very long, and bring a lot of manufacturing problems: the main shaft rigidity is relatively poor, the clamping difficulty, circle is beated large, affects machining accuracy; Need very long axle sleeve location stirring-head, improved the cost of main shaft.
Accompanying drawing 2 is the main sectional views that adopt one embodiment of the present of invention; 1. running lines among the figure, 2. pump discharge, 3. motor wiring, 4. motor housing, 5. motor stator, 6. rotor is 7. gone up the main shaft section, 8. water guide cover, 9. bearing, 10. grease chamber, 11. sealing, 12. second level impellers, 13. outlet volutes, 14. stator, 15. first order impellers, 16. lower main axis sections, 17. filter plate, 18. stirring-heads, 19. double nuts.Adopt stirring-head of the present invention and main shaft segmental structure, both shortened main axis length, make the pump main shaft can realize generalization, again by the 1/4 arc-shaped slot hole structure that is arranged symmetrically with on the lower main axis section disk, on guaranteeing the lower main axis section be threaded screw with locking in, accomplished the simplification assembly process.Simultaneously, do not need to dismantle the lower main axis section under the operating mode of stirring-head at some, impeller nut directly is installed is got final product.
Accompanying drawing 3 is the three-dimensional sectional drawings that adopt the lower main axis section of one embodiment of the present of invention.
Accompanying drawing 4 is the sectional views that adopt the lower main axis section of one embodiment of the present of invention.
Accompanying drawing 5 is the three-dimensional sectional drawings that adopt the impeller nut of one embodiment of the present of invention.
Accompanying drawing 6 is the sectional views that adopt the impeller nut of one embodiment of the present of invention.
Embodiment
Accompanying drawing 3 is the stirring-head place lower main axis segment structures that adopt stirring-head of the present invention and main shaft segmental structure, and it adopts with the upper main shaft section at motor and impeller place and is threaded.There is disc structure on lower main axis section top, is arranged symmetrically with 2 1/4 arc-shaped slots of processing, simultaneously at the uniform tapping in impeller hub corresponding groove hole site 4 places.In when assembling, wait stirring-head place axle to put in place after, symmetrical two stainless tack slotted screws are installed.Accompanying drawing 5 is under the operating mode that does not need stirring-head, can substitute the impeller nut structure of lower main axis section.By machining, be easy to realize the manufacturing of this segmental structure.
Claims (1)
1. the segmental structure of a multistage submersible slurry dredging pump stirring-head and main shaft relates to underwater desilting machinery.The characteristic feature of this invention is: stirring-head place lower main axis segment structure adopts with the upper main shaft section at motor and impeller place and is threaded.There is disc structure on lower main axis section top, is arranged symmetrically with 2 1/4 arc-shaped slots of processing, simultaneously at the uniform tapping in impeller hub corresponding groove hole site 4 places.In when assembling, wait stirring-head place axle to put in place after, symmetrical two stainless tack slotted screws are installed, under the operating mode that does not need stirring-head, substitute the lower main axis section with impeller nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101851463A CN103321938A (en) | 2013-05-08 | 2013-05-08 | Segmental structure for stirring head and main shaft of multi-stage submerged desilting pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101851463A CN103321938A (en) | 2013-05-08 | 2013-05-08 | Segmental structure for stirring head and main shaft of multi-stage submerged desilting pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103321938A true CN103321938A (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101851463A Pending CN103321938A (en) | 2013-05-08 | 2013-05-08 | Segmental structure for stirring head and main shaft of multi-stage submerged desilting pump |
Country Status (1)
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| CN (1) | CN103321938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4212728A1 (en) * | 2022-01-14 | 2023-07-19 | Carrier Corporation | Locking structure of compressor impeller and installation method, centrifugal compressor and refrigeration system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2937571Y (en) * | 2006-06-13 | 2007-08-22 | 浙江新界泵业有限公司 | Axle butt-joint structure of stirring sump pump |
| CN201013652Y (en) * | 2007-03-05 | 2008-01-30 | 李冬庆 | Connecting shaft type self agitating apparatus for submerged slush pump |
| CN201671830U (en) * | 2010-05-14 | 2010-12-15 | 沈健 | Self-sucking pump with stirring tool bit |
| CN201858193U (en) * | 2010-10-19 | 2011-06-08 | 昆明嘉和科技股份有限公司 | Submerged pump with stirring device |
| JP2011236829A (en) * | 2010-05-11 | 2011-11-24 | Toyo Denki Industrial Co Ltd | Agitating body for submerged pump and submerged pump using the same |
| CN202228420U (en) * | 2011-09-23 | 2012-05-23 | 湖南斯德尔特泵有限公司 | Impeller looseness prevention device of vertical pump with long shaft |
-
2013
- 2013-05-08 CN CN2013101851463A patent/CN103321938A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2937571Y (en) * | 2006-06-13 | 2007-08-22 | 浙江新界泵业有限公司 | Axle butt-joint structure of stirring sump pump |
| CN201013652Y (en) * | 2007-03-05 | 2008-01-30 | 李冬庆 | Connecting shaft type self agitating apparatus for submerged slush pump |
| JP2011236829A (en) * | 2010-05-11 | 2011-11-24 | Toyo Denki Industrial Co Ltd | Agitating body for submerged pump and submerged pump using the same |
| CN201671830U (en) * | 2010-05-14 | 2010-12-15 | 沈健 | Self-sucking pump with stirring tool bit |
| CN201858193U (en) * | 2010-10-19 | 2011-06-08 | 昆明嘉和科技股份有限公司 | Submerged pump with stirring device |
| CN202228420U (en) * | 2011-09-23 | 2012-05-23 | 湖南斯德尔特泵有限公司 | Impeller looseness prevention device of vertical pump with long shaft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4212728A1 (en) * | 2022-01-14 | 2023-07-19 | Carrier Corporation | Locking structure of compressor impeller and installation method, centrifugal compressor and refrigeration system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |