CN218760583U

CN218760583U - Impeller positioning structure

Info

Publication number: CN218760583U
Application number: CN202223366379.7U
Authority: CN
Inventors: 曾耀宗; 张宏; 包春辉; 康璧昇; 丁虎; 马长荣
Original assignee: Lanzhou Lanpump Co ltd
Current assignee: Lanzhou Lanpump Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-03-28
Anticipated expiration: 2032-12-15

Abstract

The utility model relates to an impeller location technical field, specifically an impeller location structure, one of them end that the axle stretches out the impeller is connected with the impeller spacer sleeve, impeller spacer sleeve front end top connection is in the impeller side, is equipped with the screw on the impeller spacer sleeve, and the screw is the through-hole, and the connection has holding screw in the screw, is equipped with the circular arc groove on the axle, and the circular arc groove sets up along the axle circumferencial direction, and holding screw front end top connection is in the circular arc groove; the utility model has the advantages that the shaft does not need to be processed with threads, the installation and the disassembly processes do not need to use special tools or tools, and the installation and the disassembly can be carried out only by disassembling the set screw, so the use is very convenient; the utility model discloses more convenient than traditional screw thread, nut and lock washer complex location impeller's mode, loading and unloading labour saving and time saving, the impeller is changed in the later stage or in the time, conveniently dismantles and installs, and maintenance efficiency is higher.

Description

Impeller positioning structure

Technical Field

The utility model relates to an impeller location technical field specifically is an impeller location structure.

Background

The prior art impeller positioning generally employs a threaded or impeller positioning ring. The thread positioning is to process threads on a shaft and axially position the impeller by matching with an impeller nut and a stop washer. The positioning snap ring is used for axially positioning the impeller by matching the split snap ring, the shaft sleeve and the set screw together.

The screw thread positioning impeller in the prior art is generally used on a double-suction single-stage centrifugal pump, and the medium generally takes demineralized water, yellow river water and clear water as main materials; the nut is made of cheap and rusty materials such as common carbon steel and the like, the nut made of the materials is easily rusted and locked with the shaft after being used for a period of time, and the nut is very difficult to maintain and disassemble.

The impeller snap ring of prior art fixes a position, tightly decides on the screw top to the optical axis, can take place axial displacement when receiving axial force, leads to the impeller location snap ring indirectly not hard up, finally leads to the impeller not hard up.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an impeller location structure makes the impeller stable positioning, prevents that traditional nut locate mode from taking place through a period of use and axle locking's the condition, installation, dismantlement, maintenance impeller that can be simple, swift again.

In order to realize the technical effect, the utility model relates to an impeller location structure is including impeller and axle, and the impeller is connected epaxial, and the impeller is all stretched out at the axle both ends, and one of them serving that the axle stretches out the impeller is connected with the impeller spacer sleeve, and impeller spacer sleeve front end top is in the impeller side, is equipped with the screw on the impeller spacer sleeve, and the screw is the through-hole, and the screw in-connection has holding screw, is equipped with the arc groove on the axle, and the arc groove sets up along an axle circumferencial direction, and holding screw front end top is in the arc inslot.

Furthermore, the shaft is connected with an impeller positioning ring, and the impeller positioning ring is connected between the shaft and the impeller retaining sleeve.

Furthermore, the inner wall of the impeller retaining sleeve is provided with a groove, the groove is formed in one side, close to the impeller, of the impeller retaining sleeve, and the impeller positioning ring is connected in the groove.

Furthermore, the impeller positioning ring comprises two half clamping rings which are connected to the shaft.

Furthermore, the shaft is connected with a shaft sleeve, the shaft sleeve is connected to one side, away from the impeller retaining sleeve, of the shaft, and the rear end of the shaft sleeve is abutted to the side face of the impeller.

The two halving snap rings of the impeller positioning ring block the impeller, and the impeller retaining sleeve tightly pushes the impeller and simultaneously connects the impeller positioning ring sleeve in the groove, thereby effectively preventing the impeller positioning ring from falling. The impeller retaining sleeve is in interference fit with the shaft, and the assembly and disassembly are very convenient. After the installation is finished, the set screw is screwed into the screw hole, and finally the front end of the set screw is abutted to the arc groove of the shaft, so that the impeller retaining sleeve is further prevented from loosening or axially displacing.

The utility model has the advantages that: the utility model has the advantages that the shaft does not need to be processed with threads, the installation and the disassembly processes do not need to use special tools or tools, and the installation and the disassembly can be carried out only by disassembling the set screw, so the use is very convenient; the utility model discloses more convenient than traditional screw thread, nut and lock washer complex location impeller's mode, loading and unloading labour saving and time saving, the impeller is changed in the later stage or in the time, conveniently dismantles and installs, and maintenance efficiency is higher.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a partial enlarged view i of fig. 1 according to the present invention;

fig. 3 is a schematic structural view of the impeller spacer sleeve of the present invention;

fig. 4 is a schematic structural view of the impeller positioning ring of the present invention.

In the figure: 1. an impeller retaining sleeve; 101. a screw hole; 102. a groove; 2. an arc groove; 3. tightening the screw; 4. an impeller positioning ring; 401. dividing into half snap rings; 5. an impeller; 6. a shaft; 7. and a shaft sleeve.

Detailed Description

As shown in fig. 1-4, the utility model relates to an impeller location structure is including impeller 5 and axle 6, impeller 5 connects on axle 6, impeller 5 all stretches out at axle 6 both ends, one of them serving that axle 6 stretches out impeller 5 is connected with

impeller spacer

1, 1 front end apical grafting of impeller spacer is in impeller 5 side, be equipped with screw 101 on the impeller spacer 1, screw 101 is the through-hole, it has holding screw 3 to connect in the screw 101, be equipped with circular arc groove 2 on the axle 6, circular arc groove 2 sets up along 6 circumferencial direction on the axle, 3 front end apical grafting of holding screw are in circular arc groove 2. Connect impeller holding ring 4 on the axle 6, impeller holding ring 4 is connected between axle 6 and impeller spacer 1, and impeller holding ring 4 is including two and divide half snap rings 401, and two divide half snap rings 401 and all connect on axle 6, are equipped with recess 102 on the 1 inner wall of impeller spacer, and recess 102 is established in one side that impeller spacer 1 is close to impeller 5, and impeller holding ring 4 is connected in recess 102. The shaft 6 is connected with the shaft sleeve 7, the shaft sleeve 7 is connected with one side of the shaft 6, which is far away from the impeller retaining sleeve 1, and the rear end of the shaft sleeve 7 is propped against the side surface of the impeller 5.

In this embodiment, offer the draw-in groove that is used for impeller holding ring 4 to install on the axle 6, impeller holding ring 4's two divide half snap rings 401 all to install and block impeller 5 in the draw-in groove of axle 6, connect impeller holding ring cover 4 in recess 102 when impeller spacer 1 top tight impeller, the effectual impeller holding ring 4 that prevents drops. The impeller retaining sleeve 1 is in interference fit with the shaft 6, and the installation and the disassembly are very convenient. After the installation is finished, the set screw 3 is screwed into the screw hole 101, and finally the front end of the set screw 3 is abutted to the arc groove 2 of the shaft 6, so that the impeller retaining sleeve 1 is further prevented from loosening or axially displacing. The connection of the shaft sleeve 7 requires the use of a retainer ring or a snap ring, which belong to structures frequently used in the field and are not listed here.

The arrangement of the arc groove 2 ensures that the set screw 3 can be stably abutted in the arc groove 2 when the impeller retaining sleeve 1 is subjected to axial force, so that the impeller retaining sleeve 1 and the impeller 5 are ensured not to generate axial displacement, and the stability of the whole rotor is ensured.

The utility model discloses if only use holding screw 3 can't effectively prevent impeller 5's axial displacement. The axial displacement of the impeller 5 is effectively prevented by the matching use of the impeller retainer ring 1, the arc groove 2 and the set screw 3; in addition, if a large gap exists between the impeller retaining sleeve 1 and the impeller 5, foreign matters or other particles enter the impeller retaining sleeve 1 from the gap to cause the situation that the impeller retaining sleeve 1 is difficult to disassemble or even cannot be disassembled, so that the front end of the impeller retaining sleeve 1 is abutted to the side surface of the impeller 5.

The utility model discloses in, need not reprocessing screw thread on the axle 6, the in-process of installation and dismantlement need not to use dedicated frock or instrument, only needs the spanner of the dismantlement holding screw 3 that corresponds to install and dismantle, and it is very convenient to use.

The utility model discloses more convenient than traditional screw thread, nut and lock washer complex location impeller's mode, loading and unloading labour saving and time saving, the impeller is changed in the later stage or in the time, conveniently dismantles and installs, and maintenance efficiency is higher.

Claims

1. An impeller location structure which characterized in that: including impeller (5) and axle (6), impeller (5) are connected on axle (6), impeller (5) all stretch out at axle (6) both ends, one of them of axle (6) stretching out impeller (5) is served and is connected with impeller spacer sleeve (1), impeller spacer sleeve (1) front end top is in impeller (5) side, be equipped with screw (101) on impeller spacer sleeve (1), screw (101) are the through-hole, screw (101) in-connection has holding screw (3), be equipped with circular arc groove (2) on axle (6), circular arc groove (2) set up along axle (6) circumferencial direction, holding screw (3) front end top is in circular arc groove (2).

2. An impeller positioning structure according to claim 1, wherein: the shaft (6) is connected with an impeller positioning ring (4), and the impeller positioning ring (4) is connected between the shaft (6) and the impeller retaining sleeve (1).

3. An impeller positioning structure according to claim 2, wherein: the impeller retaining sleeve is characterized in that a groove (102) is formed in the inner wall of the impeller retaining sleeve (1), the groove (102) is formed in one side, close to the impeller (5), of the impeller retaining sleeve (1), and an impeller positioning ring (4) is connected into the groove (102).

4. An impeller positioning structure according to claim 3, wherein: impeller holding ring (4) including two and divide half snap rings (401), two divide half snap rings (401) all to connect on axle (6).

5. An impeller positioning structure according to claim 4, wherein: the impeller is characterized in that the shaft (6) is connected with a shaft sleeve (7), the shaft sleeve (7) is connected to one side, away from the impeller retaining sleeve (1), of the shaft (6), and the rear end of the shaft sleeve (7) is connected to the side face of the impeller (5) in a propping mode.

6. An impeller positioning structure according to any one of claims 1 to 5, wherein: the impeller retaining sleeve (1) is in interference fit with the shaft (6).