CN109538519A - A kind of segmentation shaft end portion docking facilities - Google Patents
A kind of segmentation shaft end portion docking facilities Download PDFInfo
- Publication number
- CN109538519A CN109538519A CN201910046437.1A CN201910046437A CN109538519A CN 109538519 A CN109538519 A CN 109538519A CN 201910046437 A CN201910046437 A CN 201910046437A CN 109538519 A CN109538519 A CN 109538519A
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- CN
- China
- Prior art keywords
- pump shaft
- connection shell
- docking facilities
- shaft
- connector sleeve
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of segmentation shaft end portion docking facilities, including upper pump shaft and lower pump shaft, the end of the upper pump shaft and lower pump shaft offers step groove, the upper pump shaft and lower pump shaft side offer half keyway, docking facilities are provided between the upper pump shaft and the end of lower pump shaft, the docking facilities include connector sleeve, the connector sleeve is internally provided with connection shell and lower connection shell, the upper connection shell symmetrically splits gained with lower connection shell after overall architecture, the connector sleeve threaded one end is connected with locking nut, the locking nut has been bolted holding screw close to one end, connection keyway is offered inside the lower connection shell, it is provided between half keyway and connection keyway and docks key.The present invention is conducive to dock upper pump shaft with lower pump shaft, the good pump shaft of segmental machining is effectively then assembled into the whole axis of a rigidity and is used, the service life of pump shaft is increased by being equipped with docking facilities.
Description
Technical field
The present invention relates to multistage centrifugal submersible pump technical field, in particular to a kind of segmentation shaft end portion docking facilities.
Background technique
Multistage centrifugal submersible pump is widely used in the fields such as workers and peasants' production, mine, urban construction；Especially mine drainage
With centrifugal multistage pump multiple centrifugal pump, as diving pump lift required for mine excavation depth down also constantly increases, impeller progression also increases
Add, as centrifugation submersible pump is main and the pump shaft of critical component can be more and more elongated, since elongated shaft is rigidly poor, leads in this way
The vibration aggravation of pump shaft process is caused, the processing difficulties such as overproof of beating, product rejection rate is high, while leaf when pump shaft is too long
The assembly such as set are also difficult between wheel, grade, and product quality is difficult to ensure；In order to solve this problem, improve pump shaft converted products quality and
Efficiency；Pump shaft can be made easy to process using first pump shaft length segmentation is reduced to after original half or 1/3, then pass through docking
The good pump shaft of segmental machining is then assembled into the whole axis of a rigidity and used by device.
Therefore, it is necessary to solve the above problems that a kind of segmentation shaft end portion's docking facilities are invented.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of segmentation shaft end portion docking facilities, by being equipped with to tipping
It sets, is conducive to dock upper pump shaft with lower pump shaft, it is whole that the good pump shaft of segmental machining is effectively then assembled into a rigidity
Body axis uses, and increases the service life of pump shaft, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of segmentation shaft end portion docking facilities, including upper pump
The end of axis and lower pump shaft, the upper pump shaft and lower pump shaft offers step groove, and the upper pump shaft is opened with lower pump shaft side
Equipped with half keyway, docking facilities are provided between the upper pump shaft and the end of lower pump shaft.
Preferably, the docking facilities include connector sleeve, and the connector sleeve is internally provided with connection shell and lower connection shell,
Symmetrically to split gained after overall architecture, the connector sleeve threaded one end is connected with locking screw for the upper connection shell and lower connection shell
Mother, the locking nut have been bolted holding screw close to one end, and the connector sleeve surface offers and holding screw phase
The cone hole matched.
Preferably, connection keyway is offered inside the lower connection shell, is provided between half keyway and connection keyway
Dock key.
Preferably, removal hole is offered inside half keyway of the lower connection shell, lower connection is run through in described removal hole one end
The surface of shell is communicated with outside.
Preferably, the upper pump shaft is identical as the outer end diameter size of lower pump shaft, the end of the upper pump shaft and lower pump shaft
Half keyway size is identical.
Preferably, the outer end diameter size of the hole size and upper pump shaft and lower pump shaft of the upper connection shell and lower connection shell
It matches, the appearance taper size of the upper connection shell and lower connection shell is matched with connector sleeve hole size.
Preferably, the connector sleeve is greater than other end outer diameter, the company close to one end outer diameter of locking nut
Female connector inner hole is the outer diameter matching of 1:50 taper, the connector sleeve hole taper size and upper connection shell and lower connection shell
It closes.
Preferably, the upper pump shaft and lower pump shaft surface are provided with multiple upper impellers and multiple lower impellers, the upper pump
Axis and lower pump shaft are provided with impeller key between upper impeller and lower impeller, between two neighboring upper leaf wheel and lower impeller
It is provided between grade and covers.
Preferably, the upper impeller of the upper pump shaft and lower impeller are symmetrical arranged about upper pump spindle center.
Technical effect and advantage of the invention:
1, by being equipped with docking facilities, be conducive to the step groove of the end by upper pump shaft Yu lower pump shaft using upper connection shell and
Lower connection shell carries out clamping, using connector sleeve hole taper locking positioning, be then fixed using locking nut it is locking, thus
Upper pump shaft is docked with lower pump shaft, the good pump shaft of segmental machining is effectively then assembled into the whole axis of a rigidity and is used,
Increase the service life of pump shaft.
2, by be equipped with half keyway with connect keyway, key will be docked by, which being conducive to, is put into inside half keyway, thus the company of preventing
Body contact is moved radially with lower connection shell, is effectively carried out two pump shafts while being rotated, and does not vibrate.
3, by being equipped with holding screw, be conducive to be consolidated locking nut by the way that holding screw is screwed in cone hole inside
It is fixed, it effectively prevents the axis from generating vibration in use, locking nut is caused to come loose, cause pump shaft and lower pump shaft de-
From causing immersible pump to damage.
Detailed description of the invention
Fig. 1 is docking facilities structural schematic diagram of the invention；
Fig. 2 is docking facilities structure right view of the invention；
Fig. 3 is upper connection shell and lower connection shell structure schematic diagram of the invention；
Fig. 4 is upper connection shell and lower connection shell structure B-B direction cross-sectional view of the invention；
Fig. 5 is upper connection shell of the invention and lower connection shell structure K to cross-sectional view；
Fig. 6 is connecting jacket structure schematic diagram of the invention；
Fig. 7 is pump rotor assembly structure diagram of the invention.
In figure: 1, upper pump shaft；2, lower pump shaft；3, step groove；4, half keyway；5, docking facilities；6, connector sleeve；7, upper connection
Shell；8, lower connection shell；9, locking nut；10, holding screw；11, cone hole；12, keyway is connected；13, key is docked；14, removal hole；
15, space is adjusted；16, upper impeller；17, lower impeller；18, impeller key；19, it is covered between grade.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
A kind of segmentation shaft end portion docking facilities according to shown in Fig. 1-7, including upper pump shaft 1 and lower pump shaft 2, the upper pump shaft
1 offers step groove 3 with the end of lower pump shaft 2, by being equipped with step groove 3, is conducive to connection shell 7 and lower connection shell 8
Blocked, the upper pump shaft 1 and lower 2 side of pump shaft offer half keyway 4, the end of the upper pump shaft 1 and lower pump shaft 2 it
Between be provided with docking facilities 5, by being equipped with docking facilities 5, be conducive to upper pump shaft 1 and the end of lower pump shaft 2 passing through upper connection
Shell 7 and lower connection shell 8 carry out clamping, are fixed using locking nut 9, so that upper pump shaft 1 is docked with lower pump shaft 2,
The good pump shaft of segmental machining is effectively then assembled into the whole axis of a rigidity to use, increases the service life of pump shaft.
Further, in the above-mentioned technical solutions, the docking facilities 5 include connector sleeve 6, are set inside the connector sleeve 6
It is equipped with connection shell 7 and lower connection shell 8, the upper connection shell 7 symmetrically splits gained, institute with lower connection shell 8 after overall architecture
It states 6 threaded one end of connector sleeve and is connected with locking nut 9, by screwing locking nut 9, reduce the diameter of 6 one end of connector sleeve, from
And keeping connector sleeve 6 that upper connection shell 7 is tightly locked with lower connection shell 8, the locking nut 9 has been bolted tightening close to one end
Screw 10,6 surface of connector sleeve offer the cone hole 11 to match with holding screw 10, by being equipped with holding screw 10, have
Conducive to by screwing in holding screw 10 inside cone hole 11, locking nut 9 is fixed, effectively prevents the axis from using
Vibration is generated in journey, locking nut 9 is caused to come loose, and causes pump shaft 1 and lower pump shaft 2 to be detached from, immersible pump is caused to damage；
Further, in the above-mentioned technical solutions, connection keyway 12, the half bond are offered inside the lower connection shell 8
Be provided between slot 4 and connection keyway 12 and dock key 13, by equipped with half keyway 4 with connect keyway 12, be conducive to that key will be docked
13 are put into inside half keyway 4, to prevent connection shell 7 from moving radially with lower connection shell 8, effectively carry out two pump shafts same
When rotate, and do not vibrate；
Further, in the above-mentioned technical solutions, removal hole 14, institute are offered inside half keyway 4 of the lower connection shell 8
It states 14 one end of removal hole to communicate through the surface of lower connection shell 8 with outside, by being equipped with removal hole 14, is conducive to connect under disassembly
When body contact 8, it is inserted into using thin iron, lower connection shell 8 is detached from key 13 is docked；
Further, in the above-mentioned technical solutions, the upper pump shaft 1 is identical as the outer end diameter size of lower pump shaft 2, described
Upper pump shaft 1 is identical as end half keyway, 4 sizes of lower pump shaft 2；
Further, in the above-mentioned technical solutions, the hole size and upper pump shaft 1 of the upper connection shell 7 and lower connection shell 8
It is matched with the outer end diameter size of lower pump shaft 2, the appearance taper size and connector sleeve 6 of the upper connection shell 7 and lower connection shell 8
Hole size matches；
Further, in the above-mentioned technical solutions, the connector sleeve 6 is greater than close to one end outer diameter of locking nut 9
Other end outer diameter, 6 inner hole of connector sleeve are 1:50 taper, the 6 hole taper size of connector sleeve and upper connection shell 7 and
The outer diameter of lower connection shell 8 matches, and by screwing locking nut 9, using inside and outside taper fit, makes connector sleeve 6 by upper company
Body contact 7 is locked with lower connection shell 8；
Further, in the above-mentioned technical solutions, the upper pump shaft 1 is provided with multiple upper impellers with lower 2 surface of pump shaft
16 with multiple lower impellers 17, the upper pump shaft 1 and lower pump shaft 2 are provided with impeller key between upper impeller 16 and lower impeller 17
18, it is provided between two neighboring upper leaf wheel 16 and lower impeller 17 between grade and covers 19, by will first be lifted into pump set 19 between grade
Axis surface enters impeller key 18 in pump shaft surface inserting, impeller is inserted in pump shaft surface, makes keyway and 18 weight of impeller key on impeller
It closes, so that impeller is fixed on pump shaft；
Further, in the above-mentioned technical solutions, the upper impeller 16 of the upper pump shaft 1 and lower impeller 17 are about upper pump shaft
1 center symmetric setting.
Working principle of the present invention:
Referring to Figure of description 1-6, when being docked upper pump shaft 1 with lower pump shaft 2, by by upper pump shaft 1 and lower pump
After keeping two and half keyways 4 perfectly aligned, docking key 13 is put into inside half keyway 4 for the end part aligning of axis 2, then will be to tipping
Lower 8 both ends of connection shell for setting 5 are respectively clamped into pump shaft 1 with inside the step groove 3 of lower pump shaft 2, make the lower connection keyway for connecting shell 8
12 dock with the key 13 that docks inside half keyway 4, and a part for being located at docking key 13 outside half keyway 4 is bumped into connection keyway 12
Inside, to prevent connection shell 7 from moving radially with lower connection shell 8, by 6 sets of connector sleeve in upper connection shell 7 and lower 8 table of connection shell
Face reduces the diameter of 6 one end of connector sleeve, to make connector sleeve 6 by upper connection shell 7 and lower connection by screwing locking nut 9
Shell 8 is tightly locked, finally screws in inside cone hole 11 holding screw 10, so that locking nut 9 is fixed, prevents the axis from existing
Vibration is generated in use process, locking nut 9 is caused to come loose, and causes pump shaft 1 and lower pump shaft 2 to be detached from, immersible pump is caused to damage；
Referring to Figure of description 7, when being connect to upper impeller 16 with lower impeller 17, by the way that first set 19 between grade is lifted into pump shaft
Surface enters impeller key 18 in pump shaft surface inserting, impeller is inserted in pump shaft surface, makes keyway and 18 weight of impeller key on impeller
It closes, so that impeller is fixed on pump shaft.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (9)
1. a kind of segmentation shaft end portion docking facilities, including upper pump shaft (1) and lower pump shaft (2), it is characterised in that: the upper pump shaft
(1) it is offered step groove (3) with the end of lower pump shaft (2), the upper pump shaft (1) and lower pump shaft (2) side offer half
Keyway (4) is provided with docking facilities (5) between the upper pump shaft (1) and the end of lower pump shaft (2).
2. a kind of segmentation shaft end portion docking facilities according to claim 1, it is characterised in that: docking facilities (5) packet
Include connector sleeve (6), the connector sleeve (6) is internally provided with connection shell (7) and lower connection shell (8), the upper connection shell (7) and
For lower connection shell (8) symmetrically to split gained after overall architecture, connector sleeve (6) threaded one end is connected with locking nut (9), institute
It states locking nut (9) to be bolted holding screw (10) close to one end, connector sleeve (6) surface offers and holding screw
(10) the cone hole (11) to match.
3. a kind of segmentation shaft end portion docking facilities according to claim 2, it is characterised in that: in the lower connection shell (8)
Portion offer connection keyway (12), half keyway (4) with connect between keyway (12) be provided with dock key (13).
4. a kind of segmentation shaft end portion docking facilities according to claim 2, it is characterised in that: lower connection shell (8)
It is offered removal hole (14) inside half keyway (4), surface and external phase of described removal hole (14) one end through lower connection shell (8)
It is logical.
5. a kind of segmentation shaft end portion docking facilities according to claim 1, it is characterised in that: the upper pump shaft (1) is under
The outer end diameter size of pump shaft (2) is identical, and the upper pump shaft (1) is identical as end half keyway (4) size of lower pump shaft (2).
6. a kind of segmentation shaft end portion docking facilities according to claim 2, it is characterised in that: the upper connection shell (7) and
The hole size of lower connection shell (8) is matched with the outer end diameter size of upper pump shaft (1) and lower pump shaft (2), the upper connection shell
(7) it is matched with the appearance taper size of lower connection shell (8) with connector sleeve (6) hole size.
7. a kind of segmentation shaft end portion docking facilities according to claim 2, it is characterised in that: the connector sleeve (6) is close
One end outer diameter of locking nut (9) is greater than other end outer diameter, and connector sleeve (6) inner hole is 1:50 taper, described
Connector sleeve (6) hole taper size is matched with the outer diameter of upper connection shell (7) and lower connection shell (8).
8. a kind of segmentation shaft end portion docking facilities according to claim 1, it is characterised in that: the upper pump shaft (1) is under
Pump shaft (2) surface is provided with multiple upper impellers (16) and multiple lower impellers (17), and the upper pump shaft (1) and lower pump shaft (2) are equal
It is provided between upper impeller (16) and lower impeller (17) impeller key (18), two neighboring upper leaf wheel (16) and lower impeller
(17) it is provided between grade and covers (19).
9. a kind of segmentation shaft end portion docking facilities according to claim 1, it is characterised in that: the upper pump shaft (1) it is upper
Impeller (16) and lower impeller (17) are about upper pump shaft (1) center symmetric setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910046437.1A CN109538519A (en) | 2019-01-18 | 2019-01-18 | A kind of segmentation shaft end portion docking facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910046437.1A CN109538519A (en) | 2019-01-18 | 2019-01-18 | A kind of segmentation shaft end portion docking facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109538519A true CN109538519A (en) | 2019-03-29 |
Family
ID=65835580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910046437.1A Pending CN109538519A (en) | 2019-01-18 | 2019-01-18 | A kind of segmentation shaft end portion docking facilities |
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| Country | Link |
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| CN (1) | CN109538519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307164A (en) * | 2019-07-25 | 2019-10-08 | 中国船舶重工集团公司第七0四研究所 | Condensate pump flow passage components structure with inducer |
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| CN102418747A (en) * | 2011-10-28 | 2012-04-18 | 吴江市合欣转移印花有限公司 | Rigid coupler for warp knitting machine |
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| CN206129677U (en) * | 2016-08-31 | 2017-04-26 | 中国电建集团上海能源装备有限公司 | Connection structure of submerged pump sectional type major axis |
| CN107477020A (en) * | 2017-09-28 | 2017-12-15 | 合肥恒大江海泵业股份有限公司 | A kind of pump shaft coupling structure |
| CN209557322U (en) * | 2019-01-18 | 2019-10-29 | 合肥恒大江海泵业股份有限公司 | A kind of segmentation shaft end portion docking facilities |
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2019
- 2019-01-18 CN CN201910046437.1A patent/CN109538519A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285903A (en) * | 1997-12-02 | 2001-02-28 | Smc株式会社 | Rotation stop device and electric actuator having rotation stopping function |
| US20110171047A1 (en) * | 2010-01-14 | 2011-07-14 | Baker Hughes Incorporated | Removable locking coupling for shaft |
| CN102418747A (en) * | 2011-10-28 | 2012-04-18 | 吴江市合欣转移印花有限公司 | Rigid coupler for warp knitting machine |
| CN203339874U (en) * | 2013-07-24 | 2013-12-11 | 苏州库比克机器人有限公司 | Servo electric cylinder of high concentricity and transmission accuracy |
| CN205423181U (en) * | 2016-02-29 | 2016-08-03 | 大连双龙泵业制造有限公司 | Vertical oblique flow pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307164A (en) * | 2019-07-25 | 2019-10-08 | 中国船舶重工集团公司第七0四研究所 | Condensate pump flow passage components structure with inducer |
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