CN111322270A - Water pump impeller transmission shaft connecting structure - Google Patents

Water pump impeller transmission shaft connecting structure Download PDF

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Publication number
CN111322270A
CN111322270A CN202010139194.9A CN202010139194A CN111322270A CN 111322270 A CN111322270 A CN 111322270A CN 202010139194 A CN202010139194 A CN 202010139194A CN 111322270 A CN111322270 A CN 111322270A
Authority
CN
China
Prior art keywords
transmission shaft
water pump
pump impeller
impeller
sleeve
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.)
Pending
Application number
CN202010139194.9A
Other languages
Chinese (zh)
Inventor
周国辉
薛茂
刘淑青
李政博
白淳鑫
蔡锦峰
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.)
Julong Motor Ningde Co ltd
Original Assignee
Julong Motor Ningde Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Julong Motor Ningde Co ltd filed Critical Julong Motor Ningde Co ltd
Priority to CN202010139194.9A priority Critical patent/CN111322270A/en
Publication of CN111322270A publication Critical patent/CN111322270A/en
Pending legal-status Critical Current

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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
    • F04D29/18—Rotors
    • F04D29/20—Mounting rotors on shafts
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • 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
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • F04D29/2227—Construction and assembly for special materials

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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 relates to the technical field of water pump impeller structures, in particular to a water pump impeller transmission shaft connecting structure; through establishing annular adapter sleeve at transmission shaft body cover, the cambered surface design of adapter sleeve has elastic arch, dock with the shaft hole of impeller body when the transmission shaft body, form when assembling the body, form inseparable interference fit through between bellied elastic deformation and the shaft hole inner wall, realize the location of transmission shaft body and impeller body and connect, compare the parallel key connected mode who adopts among the traditional connected mode, the installation step has greatly been simplified, no longer need extra nut bolt fastening, and adapter sleeve simple structure, low in processing cost, can guarantee impeller body and this body coupling's of transmission axiality and stability, the transmission is steady.

Description

Water pump impeller transmission shaft connecting structure
Technical Field
The invention relates to the technical field of water pump impeller structures, in particular to a water pump impeller transmission shaft connecting structure.
Background
The impeller is the core part of water pump, drives impeller rotation through the motor, makes the blade of impeller rotate, makes the water in the water pump send to high department under blade pivoted centrifugal action, and the rotation of impeller is driven down the pivoted by the motor through the transmission shaft, and impeller and transmission shaft pass through the flat key transmission among the prior art, and reuse nut or bolt to fix the impeller on the transmission shaft, and processing is complicated, and the installation step is many.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to provide a water pump impeller transmission shaft connection structure that the installation step is simple.
In order to solve the technical problems, the invention adopts the technical scheme that:
a water pump impeller transmission shaft connecting structure comprises a transmission shaft body, an impeller body and a connecting sleeve;
the connecting sleeve is made of elastic metal and is in a ring shape, and an elastic bulge is arranged on the outer arc surface of the connecting sleeve; the transmission shaft is located to the inner circle cover of adapter sleeve, the impeller body is equipped with the shaft hole, the protruding interference fit of shaft hole inner wall and adapter sleeve.
The invention has the beneficial effects that: according to the water pump impeller transmission shaft connecting structure provided by the invention, the annular connecting sleeve is sleeved on the transmission shaft body, the cambered surface of the connecting sleeve is provided with the elastic bulge, when the transmission shaft body is butted with the shaft hole of the impeller body to form an assembly body, the tight interference fit is formed between the elastic deformation of the bulge and the inner wall of the shaft hole, and the positioning connection between the transmission shaft body and the impeller body is realized.
Drawings
FIG. 1 is a sectional view of a connection structure of a transmission shaft of a water pump impeller according to an embodiment of the present invention;
fig. 2 is a sectional view of a connection sleeve structure of a connection structure of a transmission shaft of a water pump impeller according to an embodiment of the invention;
FIG. 3 is an axial view of a connection sleeve of a connection structure of a water pump impeller transmission shaft according to an embodiment of the present invention;
description of reference numerals:
1. a transmission shaft body; 11. a groove; 2. an impeller body; 3. connecting sleeves; 31. and (4) protruding.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: the annular connecting sleeve is sleeved on the transmission shaft body, the cambered surface of the connecting sleeve is provided with an elastic bulge, and when the transmission shaft body is butted with the shaft hole of the impeller body to form an assembly body, tight interference fit is formed between the elastic deformation of the bulge and the inner wall of the shaft hole.
Referring to fig. 1 to 3, the present invention relates to a connection structure of a transmission shaft of a water pump impeller, which includes a transmission shaft body 1, an impeller body 2 and a connection sleeve 3;
the connecting sleeve 3 is made of elastic metal, the connecting sleeve 3 is annular, and the outer arc surface of the connecting sleeve 3 is provided with an elastic bulge 31; the transmission shaft is located to the inner circle cover of adapter sleeve 3, impeller body 2 is equipped with the shaft hole, shaft hole inner wall and the protruding 31 interference fit of adapter sleeve 3.
Known by the above description, through establish annular adapter sleeve 3 of circle at transmission shaft body 1 cover, adapter sleeve 3's cambered surface design has elastic protruding 31, dock with impeller body 2's shaft hole when transmission shaft body 1, when forming the assembly body, elastic deformation through protruding 31 and the shaft hole inner wall between form inseparable interference fit, realize transmission shaft body 1 and impeller body 2's location and connect, compare the parallel key connected mode who adopts in the traditional connected mode, the installation procedure has greatly been simplified, no longer need extra nut bolt fastening, and adapter sleeve 3 simple structure, the processing cost is low, can guarantee axiality and the stability that impeller body 2 and transmission shaft body 1 are connected, the transmission is steady.
Furthermore, in the connection structure of the transmission shaft of the water pump impeller, the transmission shaft body 1 is provided with a circular groove 11, the axial length of the groove 11 is equal to the axial length of the connection sleeve 3, and the inner ring of the connection sleeve 3 is embedded in the groove 11.
As can be seen from the above description, the annular groove 11 is formed in the transmission shaft body 1, so that the inner ring of the connection sleeve 3 is embedded into the groove 11, which facilitates the butt joint of the transmission shaft body 1 and the shaft hole of the impeller body 2, and avoids the axial deviation of the connection sleeve 3 during the butt joint.
Further, in the connection structure of the transmission shaft of the water pump impeller, the thickness of the connection sleeve 3 is larger than the depth of the groove 11.
As can be seen from the above description, the thickness of the connecting sleeve 3 is greater than the depth of the groove 11, so that the protrusion 31 can protrude out of the surface of the transmission shaft body 1 to achieve an interference fit with the shaft hole of the impeller body 2.
Furthermore, in the connection structure of the transmission shaft of the water pump impeller, the depth of the groove 11 is 0.5-1 mm.
Furthermore, in the connection structure of the transmission shaft of the water pump impeller, the thickness of the connecting sleeve 3 is 1-2 mm.
The thickness of the groove 11 and the connecting sleeve 3 is taken as an embodiment, and the size of the groove and the thickness of the connecting sleeve can be adjusted according to the specification of the water pump.
Further, in the connection structure of the transmission shaft of the water pump impeller, the connection sleeve 3 is provided with an opening.
As can be seen from the above description, the connecting sleeve 3 is provided with an opening, so that the connecting sleeve 3 is conveniently sleeved in the groove 11 of the transmission shaft body 1.
Further, in the connection structure of the transmission shaft of the water pump impeller, the protrusion 31 is specifically a convex rib which is parallel to the axis of the connection sleeve 3 and is distributed in a circular array.
Furthermore, in the connection structure of the transmission shaft of the water pump impeller, chamfers are arranged at two ends of the connecting sleeve 3.
Example 1
A water pump impeller transmission shaft connecting structure comprises a transmission shaft body 1, an impeller body 2 and a connecting sleeve 3; the connecting sleeve 3 is made of elastic metal, the connecting sleeve 3 is annular, and the outer arc surface of the connecting sleeve 3 is provided with an elastic bulge 31; the transmission shaft is located to the inner circle cover of adapter sleeve 3, impeller body 2 is equipped with the shaft hole, shaft hole inner wall and the protruding 31 interference fit of adapter sleeve 3. The annular groove 11 of the transmission shaft body 1, the axial length of the groove 11 is equal to the axial length of the connecting sleeve 3, and the inner ring of the connecting sleeve 3 is embedded in the groove 11. The thickness of the connecting sleeve 3 is larger than the depth of the groove 11. The depth of the groove 11 is 0.5-1 mm. The thickness of the connecting sleeve 3 is 1-2 mm. The connecting sleeve 3 is provided with an opening. The protrusion 31 is specifically a rib which is parallel to the axis of the connecting sleeve 3 and distributed in a circular ring array. And chamfers are arranged at two ends of the connecting sleeve 3.
In summary, in the water pump impeller transmission shaft connection structure provided by the invention, the annular connection sleeve is sleeved on the transmission shaft body, the arc surface of the connection sleeve is provided with the elastic bulge, when the transmission shaft body is butted with the shaft hole of the impeller body to form an assembly body, the tight interference fit is formed between the elastic deformation of the bulge and the inner wall of the shaft hole, and the positioning connection between the transmission shaft body and the impeller body is realized. The annular groove is formed in the transmission shaft body, so that the inner ring of the connecting sleeve is embedded into the groove, the transmission shaft body is conveniently butted with the shaft hole of the impeller body, and the connecting sleeve is prevented from generating axial offset when being butted. The thickness of adapter sleeve is greater than the degree of depth of recess for the protrusion can bulge the surface of transmission shaft body, realizes the interference fit with the shaft hole of impeller body. The connecting sleeve is provided with an opening, so that the connecting sleeve is conveniently sleeved in the groove of the transmission shaft body.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims (8)

1. The water pump impeller transmission shaft connecting structure is characterized by comprising a transmission shaft body, an impeller body and a connecting sleeve;
the connecting sleeve is made of elastic metal and is in a ring shape, and an elastic bulge is arranged on the outer arc surface of the connecting sleeve; the transmission shaft is located to the inner circle cover of adapter sleeve, the impeller body is equipped with the shaft hole, the protruding interference fit of shaft hole inner wall and adapter sleeve.
2. The connection structure of the water pump impeller transmission shaft according to claim 1, wherein the transmission shaft body is a circular groove, the axial length of the groove is equal to the axial length of the connection sleeve, and the inner ring of the connection sleeve is embedded in the groove.
3. The connection structure of the water pump impeller transmission shaft according to claim 2, wherein the thickness of the connecting sleeve is larger than the depth of the groove.
4. The connection structure of the transmission shaft of the water pump impeller according to claim 2, wherein the depth of the groove is 0.5-1 mm.
5. The connection structure of the transmission shaft of the water pump impeller according to claim 2, wherein the thickness of the connection sleeve is 1-2 mm.
6. The connection structure of the water pump impeller transmission shaft according to claim 1, wherein the connection sleeve is provided with an opening.
7. The connection structure of the transmission shaft of the water pump impeller according to claim 1, wherein the protrusion is a rib parallel to the axis of the connection sleeve and distributed in a circular array.
8. The connection structure of the transmission shaft of the water pump impeller according to claim 1, wherein chamfers are arranged at two ends of the connecting sleeve.
CN202010139194.9A 2020-03-03 2020-03-03 Water pump impeller transmission shaft connecting structure Pending CN111322270A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010139194.9A CN111322270A (en) 2020-03-03 2020-03-03 Water pump impeller transmission shaft connecting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010139194.9A CN111322270A (en) 2020-03-03 2020-03-03 Water pump impeller transmission shaft connecting structure

Publications (1)

Publication Number Publication Date
CN111322270A true CN111322270A (en) 2020-06-23

Family

ID=71173047

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010139194.9A Pending CN111322270A (en) 2020-03-03 2020-03-03 Water pump impeller transmission shaft connecting structure

Country Status (1)

Country Link
CN (1) CN111322270A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2915544A1 (en) * 2007-04-30 2008-10-31 Sarl Jean Michel Egretier Sarl Rolling bearing integrating and disintegrating device for pump in e.g. alimentary field, has nozzle including cylindrical ring that is displaced in space under effect of pressure to compress sleeve till shaft is blocked on inner ring
CN202811483U (en) * 2012-09-24 2013-03-20 北京长征天民高科技有限公司 Connecting structure convenient for installation of multistage pump rotor part
CN203189431U (en) * 2013-03-18 2013-09-11 江苏中硅工程材料有限公司 Connection structure of silica ceramic roller and shaft sleeve
CN104251228A (en) * 2013-06-27 2014-12-31 上海连成（集团）有限公司 Impeller positioning structure
CN205101268U (en) * 2015-10-16 2016-03-23 任宁 Novel flange structure for pump
CN205677872U (en) * 2016-05-12 2016-11-09 包头市名泉泵业有限责任公司 A kind of wheel member with locking functions

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2915544A1 (en) * 2007-04-30 2008-10-31 Sarl Jean Michel Egretier Sarl Rolling bearing integrating and disintegrating device for pump in e.g. alimentary field, has nozzle including cylindrical ring that is displaced in space under effect of pressure to compress sleeve till shaft is blocked on inner ring
CN202811483U (en) * 2012-09-24 2013-03-20 北京长征天民高科技有限公司 Connecting structure convenient for installation of multistage pump rotor part
CN203189431U (en) * 2013-03-18 2013-09-11 江苏中硅工程材料有限公司 Connection structure of silica ceramic roller and shaft sleeve
CN104251228A (en) * 2013-06-27 2014-12-31 上海连成（集团）有限公司 Impeller positioning structure
CN205101268U (en) * 2015-10-16 2016-03-23 任宁 Novel flange structure for pump
CN205677872U (en) * 2016-05-12 2016-11-09 包头市名泉泵业有限责任公司 A kind of wheel member with locking functions

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SE01 Entry into force of request for substantive examination
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Application publication date: 20200623