CN209083602U - A kind of submersible pump - Google Patents

A kind of submersible pump Download PDF

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Publication number
CN209083602U
CN209083602U CN201821947078.4U CN201821947078U CN209083602U CN 209083602 U CN209083602 U CN 209083602U CN 201821947078 U CN201821947078 U CN 201821947078U CN 209083602 U CN209083602 U CN 209083602U
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CN
China
Prior art keywords
impeller
pump
shaft
component
stage
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Active
Application number
CN201821947078.4U
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Chinese (zh)
Inventor
陈贤元
刘伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TAIZHOU JIADI PUMP INDUSTRY Co Ltd
Original Assignee
TAIZHOU JIADI PUMP INDUSTRY Co Ltd
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Application filed by TAIZHOU JIADI PUMP INDUSTRY Co Ltd filed Critical TAIZHOU JIADI PUMP INDUSTRY Co Ltd
Priority to CN201821947078.4U priority Critical patent/CN209083602U/en
Application granted granted Critical
Publication of CN209083602U publication Critical patent/CN209083602U/en
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Abstract

The utility model discloses a kind of submersible pumps, it is intended to provide a kind of good airproof performance and submersible pump easy to process, its key points of the technical solution are that including pump case, main shaft and multi-stage impeller component, main shaft and multi-stage impeller component are mounted in pump case, and multi-stage impeller component is successively installed on main shaft along axial direction, the multi-stage impeller component includes impeller, the blower inlet casing being set on impeller and the cover board for being placed in blower inlet casing lower end, it is axially contradicted between adjacent fan-wheel, impeller includes the impeller port ring positioned at impeller water inlet end, cover board is equipped with the sealing ring that sealing is axially contradicted with impeller port ring, the utility model is suitable for electric pump technical field.

Description

A kind of submersible pump
Technical field
The utility model belongs to electric pump technical field, refers in particular to a kind of submersible pump.
Background technique
Submersible pump currently on the market, such as application number CN201420647932.0 disclosure of that wherein impeller port ring Place is using radial seal, if it is desired to which radial clearance is smaller, then higher to requirement on machining accuracy, can if gap gap is excessive Leakage is caused to increase, the efficiency of pump reduces;And motor shaft and pump shaft are coaxial configuration, power is big, series is high adds elongated shaft knot Structure, difficulty of processing is very big, and processing efficiency is extremely low.
Utility model content
The purpose of the utility model is to provide a kind of good airproof performance and submersible pumps easy to process.
Purpose of the utility model is realized as follows: a kind of submersible pump, including pump case, main shaft and multi-stage impeller group Part, main shaft and multi-stage impeller component are mounted in pump case, and multi-stage impeller component is successively installed on main shaft along axial direction, special Sign is: the multi-stage impeller component includes impeller, the blower inlet casing being set on impeller and the cover board for being placed in blower inlet casing lower end, It is axially contradicted between adjacent fan-wheel, impeller includes the impeller port ring positioned at impeller water inlet end, and cover board is equipped with and impeller port ring axis To the sealing ring for contradicting sealing.
The utility model is further arranged to: the main shaft includes split type motor shaft and pump shaft, multi-stage impeller component It is mounted on pump shaft, motor shaft is equipped with inner stopper, and pump shaft is equipped with the male half coupling being adapted to inner stopper, and motor shaft and pump It is connected through a screw thread between axis.
The utility model is further arranged to: one end that the pump shaft is connected with motor shaft is equipped with to multi-stage impeller group Part plays the role of the first adjustment axle sleeve of axial limiting, and pump shaft is equipped with far from one end of motor shaft and plays to multi-stage impeller component The second adjustment bearing holder (housing, cover) of axial limiting effect, between the first adjustment axle sleeve and impeller and between second adjustment axle sleeve and impeller Equipped with axial gap.
The utility model is further arranged to: the axial gap is less than 1mm.
The utility model is further arranged to: the pump shaft is in hexagonal prisms structure.
It is had the advantages that by using above-mentioned technical proposal
Design is improved to pumping section blade wheel structure, impeller port ring uses axial seal, can reduce leakage, improve pump Efficiency so integrally being floated using multi-stage impeller, and is passed through to guarantee that impeller port ring is axially absolutely sealed in chopped-off head and final stage Adjustment axle sleeve takes the method for limit to limit the abrasion of impeller port ring sealing surface, guarantees to also ensure pump in the case where sealing Service life;
Pump shaft and motor shaft use separate machined, connect and guarantee concentricity with screw thread plus seam allowance positioning method, subtract significantly The small difficulty of processing of axis.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the portion A enlarged structure schematic diagram in the utility model Fig. 1;
Fig. 3 is the portion B enlarged structure schematic diagram in the utility model Fig. 1;
Appended drawing reference in figure are as follows: 1, pump case;2, impeller;3, blower inlet casing;4, cover board;5, impeller port ring;6, sealing ring;7, Motor shaft;8, pump shaft;9, inner stopper;10, the first adjustment axle sleeve;11, second adjustment axle sleeve;12, axial gap.
Specific embodiment
The utility model is further described with specific embodiment with reference to the accompanying drawing, referring to Fig. 1-3:
A kind of submersible pump, including pump case 1, main shaft and multi-stage impeller component, main shaft and multi-stage impeller component are mounted on In pump case 1, and multi-stage impeller component is successively installed on main shaft along axial direction, and the multi-stage impeller component includes impeller 2, is arranged Blower inlet casing 3 on impeller 2 and the cover board 4 for being placed in 3 lower end of blower inlet casing axially contradict between adjacent fan-wheel 2, and impeller 2 includes position In the impeller port ring 5 of 2 water inlet end of impeller, cover board 4 is equipped with and the axial sealing ring 6 for contradicting sealing of impeller port ring 5.
It is superimposed with each other between multiple blower inlet casings 3, and is separated by cover board 4, it can be by being located at both ends between multiple blower inlet casings 3 Water inlet cavity shell and extrude room housing carry out axial restraint, impeller port ring 5 use axial seal, can reduce leakage, raising The efficiency of pump.
The main shaft includes split type motor shaft 7 and pump shaft 8, and multi-stage impeller component is mounted on pump shaft 8, motor shaft 7 are equipped with inner stopper 9, and pump shaft 8 is equipped with the male half coupling being adapted to inner stopper 9, and passes through screw thread between motor shaft 7 and pump shaft 8 Connection.
Pump shaft 8 and motor shaft 7 using split type, can separate machined, and add seam allowance positioning method to connect with screw thread, connection is steady It is fixed, and can guarantee concentricity, substantially reduce the difficulty of processing of axis.
One end that the pump shaft 8 is connected with motor shaft 7, which is equipped with, plays the role of axial limiting to multi-stage impeller component The first adjustment axle sleeve 10, pump shaft 8 is equipped with far from one end of motor shaft 7 plays the role of the of axial limiting to multi-stage impeller component Two adjustment axle sleeves 11, are equipped between axial direction between the first adjustment axle sleeve 10 and impeller 2 and between second adjustment axle sleeve 11 and impeller 2 Gap 12.
The first adjustment axle sleeve 10 and second adjustment axle sleeve 11 play the role of axial limiting to the both ends of multi-stage impeller 2, lead to It crosses and is equipped with axial gap 12, and gap is less than 1mm, avoids the presence due to mismachining tolerance, so that will lead to impeller after assembly The bad possibility of 5 axial seal of choma.
Axial gap 12 between second adjustment axle sleeve 11 and impeller 2 is used under extremely low lift also for preventing pump When, integral wheel 2 can generate friction with blower inlet casing 3 toward floating.
The pump shaft 8 is in hexagonal prisms structure, can be adapted to the axis hole of impeller 2, and impeller 2 rotates, and stability is good.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model Within the scope of.

Claims (5)

1. a kind of submersible pump, including pump case (1), main shaft and multi-stage impeller component, main shaft and multi-stage impeller component are mounted on In pump case (1), and multi-stage impeller component is successively installed on main shaft along axial direction, it is characterised in that: the multi-stage impeller component is equal Including impeller (2), the blower inlet casing (3) being set on impeller (2) and the cover board (4) for being placed in blower inlet casing (3) lower end, adjacent fan-wheel (2) it is axially contradicted between, impeller (2) includes the impeller port ring (5) positioned at impeller (2) water inlet end, and cover board (4) is equipped with and impeller Choma (5) axially contradicts the sealing ring (6) of sealing.
2. a kind of submersible pump according to claim 1, it is characterised in that: the main shaft includes split type motor shaft (7) it is mounted on pump shaft (8) with pump shaft (8), multi-stage impeller component, motor shaft (7) is equipped with inner stopper (9), on pump shaft (8) It is connected through a screw thread equipped with the male half coupling being adapted to inner stopper (9), and between motor shaft (7) and pump shaft (8).
3. a kind of submersible pump according to claim 2, it is characterised in that: the pump shaft (8) is connected with motor shaft (7) One end be equipped with and play the role of the first adjustment axle sleeve (10) of axial limiting to multi-stage impeller component, the separate motor of pump shaft (8) One end of axis (7) is equipped with the second adjustment axle sleeve (11) for playing the role of axial limiting to multi-stage impeller component, the first adjustment axis Axial gap (12) are equipped between set (10) and impeller (2) and between second adjustment axle sleeve (11) and impeller (2).
4. a kind of submersible pump according to claim 3, it is characterised in that: the axial gap (12) is less than 1mm.
5. a kind of submersible pump according to claim 2, it is characterised in that: the pump shaft (8) is in hexagonal prisms structure.
CN201821947078.4U 2018-11-23 2018-11-23 A kind of submersible pump Active CN209083602U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821947078.4U CN209083602U (en) 2018-11-23 2018-11-23 A kind of submersible pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821947078.4U CN209083602U (en) 2018-11-23 2018-11-23 A kind of submersible pump

Publications (1)

Publication Number Publication Date
CN209083602U true CN209083602U (en) 2019-07-09

Family

ID=67125295

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821947078.4U Active CN209083602U (en) 2018-11-23 2018-11-23 A kind of submersible pump

Country Status (1)

Country Link
CN (1) CN209083602U (en)

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