CN209557322U - A kind of segmentation shaft end portion docking facilities - Google Patents
A kind of segmentation shaft end portion docking facilities Download PDFInfo
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- CN209557322U CN209557322U CN201920081963.7U CN201920081963U CN209557322U CN 209557322 U CN209557322 U CN 209557322U CN 201920081963 U CN201920081963 U CN 201920081963U CN 209557322 U CN209557322 U CN 209557322U
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- pump shaft
- connection shell
- docking facilities
- connector sleeve
- shaft
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Abstract
The utility model 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 utility model 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 utility model relates to multistage centrifugal submersible pump technical field, in particular to a kind of segmentation shaft end portion is to tipping
It sets.
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.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of segmentation shaft end portion docking facilities, by be equipped with pair
Connection device is conducive to dock upper pump shaft with lower pump shaft, and the good pump shaft of segmental machining has effectively been then assembled into one just
Property entirety axis use, increase the service life of pump shaft, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of segmentation shaft end portion docking facilities, including
The end of upper pump shaft and lower pump shaft, the upper pump shaft and lower pump shaft offers step groove, the upper pump shaft and lower pump shaft side
Half keyway is offered, is provided with docking facilities 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.
The technical effect and advantage of the utility model:
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 the docking facilities structural schematic diagram of the utility model；
Fig. 2 is the docking facilities structure right view of the utility model；
Fig. 3 is the upper connection shell and lower connection shell structure schematic diagram of the utility model；
Fig. 4 is the upper connection shell and lower connection shell structure B-B direction cross-sectional view of the utility model；
The upper connection shell and lower connection shell structure K that Fig. 5 is the utility model are to cross-sectional view；
Fig. 6 is the connecting jacket structure schematic diagram of the utility model；
Fig. 7 is the pump rotor assembly structure diagram of the utility model.
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
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
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.
Utility model works principle:
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 above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (5)
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), 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, offers connection keyway (12) inside the lower connection shell (8), half keyway (4) with connect
It connects and is provided with docking key (13) between keyway (12), offer removal hole inside half keyway (4) of lower connection shell (8)
(14), described removal hole (14) one end is communicated through the surface of lower connection shell (8) with outside, and the connector sleeve (6) is close to locking
One end outer diameter of nut (9) is greater than other end outer diameter, and connector sleeve (6) inner hole is 1:50 taper, the connection
Set (6) hole taper size is matched with the outer diameter of upper connection shell (7) and lower connection shell (8).
2. 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).
3. a kind of segmentation shaft end portion docking facilities according to claim 1, 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.
4. 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).
5. 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 |
|---|---|---|---|
| CN201920081963.7U CN209557322U (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 |
|---|---|---|---|
| CN201920081963.7U CN209557322U (en) | 2019-01-18 | 2019-01-18 | A kind of segmentation shaft end portion docking facilities |
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| Publication Number | Publication Date |
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| CN209557322U true CN209557322U (en) | 2019-10-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538519A (en) * | 2019-01-18 | 2019-03-29 | 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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- 2019-01-18 CN CN201920081963.7U patent/CN209557322U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538519A (en) * | 2019-01-18 | 2019-03-29 | 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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