CN212909173U

CN212909173U - Improve dive motor of getting rid of sand structure

Info

Publication number: CN212909173U
Application number: CN202021172263.8U
Authority: CN
Inventors: 应卓浪; 李丽东; 李海尧; 蔡金峰; 田海川
Original assignee: Zhejiang Shimge Pump Co Ltd
Current assignee: Zhejiang Shimge Pump Co Ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-04-06
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to an improve dive motor of getting rid of sand structure solves and gets rid of the not very reasonable sand control effect of sand structure among the prior art relatively poor problem, the technical scheme of adoption: the sand throwing structure comprises a sand throwing sleeve and a stainless steel sleeve, an outer spline structure is arranged at the outer end of the extending section, at least one section of inner wall of the sand throwing sleeve is of an inner spline structure, the inner spline structure is meshed with the outer spline structure, the stainless steel sleeve comprises a radial ring and an axial sleeve, the axial sleeve is inserted into an inner end inner cavity of the sand throwing sleeve and is in clearance fit with the inner wall of the sand throwing sleeve, and the radial ring is matched with the motor end cover. The method has the following effects: improve and get rid of sand cover structure, the stainless steel cover of cooperation at the inner of getting rid of the sand cover simultaneously, improved promptly and got rid of the sand cover along with the rotor shaft reliability rotatory together, improve and get rid of the sand effect, can strengthen again and get rid of the ability that the sand cover inner end prevents the silt entering, increase submersible motor's reliability.

Description

Improve dive motor of getting rid of sand structure

Technical Field

The utility model relates to a dive motor especially relates to a improve dive motor that gets rid of sand structure.

Background

Submersible motor is applied to the deep water, and silt content is high in the deep water, and in order to avoid the silt of deep water to pass through the rotor shaft entering, often need set up at the section of stretching out of rotor shaft and get rid of the sand cover. The outer end of the existing sand throwing sleeve is in a bell mouth shape, the rest parts of the existing sand throwing sleeve are in interference fit with the rotor shaft, and the bell mouth part is used for avoiding the accumulation of silt at the corner parts of the sand throwing sleeve and the rotor shaft. And the sand throwing sleeve and the rotor shaft rotate together in an interference fit mode to throw away the silt, so that the phenomenon that the sediment enters the inner cavity of the motor along with the rotation of the rotor shaft to cause a fault is avoided. The following problems exist for the existing sand throwing sleeve: the reliability of interference fit is poor, relative rotation is easy to form, and then the silt is transferred into the inner cavity of the motor; the inner end of the sand throwing sleeve is not provided with other matching structures, and impurities such as silt and sand easily enter the inner cavity of the motor along with the rotation of the rotor shaft at the inner end of the sand throwing sleeve.

Disclosure of Invention

An object of the utility model is to solve the above-mentioned problem that prior art exists and provide a improve submersible motor who gets rid of sand structure, improve and get rid of sand cover structure, the stainless steel bushing of inner cooperation that gets rid of the sand cover simultaneously has improved promptly and has got rid of the sand cover along with the reliability that the rotor shaft is rotatory together, improves and gets rid of the sand effect, can strengthen again and get rid of the ability that the sand cover inner end prevents that the silt particle gets into, increases submersible motor's reliability.

The above technical purpose of the present invention is mainly solved by the following technical solutions: the submersible motor with the improved sand throwing structure comprises a motor shell, a rotor shaft arranged in the motor shell, a motor end cover arranged at one end of the motor shell, one end of the rotor shaft extends out of the motor end cover, the extending section of the rotor shaft is matched with the sand throwing structure, it is characterized in that the sand throwing structure comprises a sand throwing sleeve and a stainless steel sleeve, the outer end of the extension section is provided with an external spline structure, the sand throwing sleeve is sleeved on the extending section, at least one section of the inner wall of the sand throwing sleeve is of an internal spline structure, the inner spline structure is engaged with the outer spline structure, the stainless steel sleeve comprises a radial ring and an axial sleeve, the axial sleeve is an axial overturning ring formed by pulling up the axial hole of the radial ring, the axial sleeve is inserted into the inner end inner cavity of the sand throwing sleeve, and the radial ring is in clearance fit with the inner wall of the sand throwing sleeve, and the radial ring is matched with the motor end cover. Improve and get rid of sand cover structure, the stainless steel cover of cooperation at the inner of getting rid of the sand cover simultaneously, improved promptly and got rid of the sand cover along with the rotor shaft reliability rotatory together, improve and get rid of the sand effect, can strengthen again and get rid of the ability that the sand cover inner end prevents the silt entering, increase submersible motor's reliability.

As further improvement and supplement to the above technical scheme, the utility model discloses a following technical measure:

the outer end of the sand throwing sleeve is a horn mouth sand throwing portion, the inner end of the sand throwing sleeve is a sleeve insertion portion of the axial sleeve, the sleeve insertion portion is in clearance fit with the axial sleeve, and the axial sleeve is in clearance fit with the extending section. Clearance fit between sleeve grafting portion and the axial sleeve is favorable to forming the lubricated film of water between the two, and existing reduction friction that is favorable to influences life can prevent again that the silt particle from getting into get rid of in the sand cover and get into the motor inner chamber along with the rotor shaft rotation, is favorable to improving the sand control ability of motor. Get rid of the outer end of sand cover and get rid of sand portion for the horn mouth, can avoid piling up getting rid of sand cover outer end, also be favorable to improving the sand control ability of motor.

Get rid of the sand cover and still include the interference fit portion of mid portion, the horn mouth get rid of sand portion with sleeve grafting portion is located the both ends of interference fit portion respectively, the inner wall of the outer section of interference fit portion sets up interior spline structure, the inner wall of the inner section of interference fit portion is aureole portion, aureole portion with stretch out the light portion of section and form interference fit. Get rid of the sand cover not only through the cooperation of interior spline structure and external splines structure, still through the interference fit of interference fit portion, make to get rid of the sand cover and can rotate along with the rotor shaft all the time, avoid getting rid of sand cover and rotor shaft formation relative motion, be favorable to improving the sand control ability of getting rid of the motor.

Get rid of sand cover wholly structure as an organic whole, in order to form sleeve grafting portion smoothly, interference fit portion with slope transition portion has between the sleeve grafting portion. The angled transition portion does not contact the outer end of the sleeve spigot portion.

And a space is arranged between the inner end of the sleeve insertion part and the outer surface of the radial ring. In the using process, the stainless steel sleeve is fixed on the end cover of the motor and is relatively static, the sand throwing sleeve rotates along with the rotor shaft, and in order to avoid abrasion caused by contact, a mode of interval arrangement is adopted, the service life is prolonged,

The outer end of the axial sleeve is located on the axial inner side of the outer end of the sleeve insertion part, namely, the outer end of the axial sleeve and the inner wall of the inclined transition part are arranged at intervals.

And a reinforcing concave ring or a reinforcing convex ring is arranged on the radial ring, and the radial ring is fixed on the motor end cover through a connecting piece.

The utility model discloses beneficial effect who has: 1. improve and get rid of sand cover structure, the stainless steel cover of cooperation at the inner of getting rid of the sand cover simultaneously, improved promptly and got rid of the sand cover along with the rotor shaft reliability rotatory together, improve and get rid of the sand effect, can strengthen again and get rid of the ability that the sand cover inner end prevents the silt entering, increase submersible motor's reliability. 2. Clearance fit between sleeve grafting portion and the axial sleeve is favorable to forming the lubricated film of water between the two, and existing reduction friction that is favorable to influences life can prevent again that the silt particle from getting into get rid of in the sand cover and get into the motor inner chamber along with the rotor shaft rotation, is favorable to improving the sand control ability of motor. Get rid of the outer end of sand cover and get rid of sand portion for the horn mouth, can avoid piling up getting rid of sand cover outer end, also be favorable to improving the sand control ability of motor. 3. Get rid of the sand cover not only through the cooperation of interior spline structure and external splines structure, still through the interference fit of interference fit portion, make to get rid of the sand cover and can rotate along with the rotor shaft all the time, avoid getting rid of sand cover and rotor shaft formation relative motion, be favorable to improving the sand control ability of getting rid of the motor.

Drawings

Fig. 1 is a schematic view of a partial structure of the present invention.

Fig. 2 is a schematic view of the present invention in a partial structure section.

Fig. 3 is the utility model discloses in get rid of the structural schematic diagram of sand cover.

Fig. 4 is a schematic sectional structure view of fig. 3.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): the inner end referred to herein is the inner end in the direction close to the motor body, and the outer end is the outer end in the direction away from the motor body.

As shown in fig. 1-4, the submersible motor with the improved sand slinging structure comprises a motor shell 1, a rotor shaft 2 arranged in the motor shell, and a motor end cover 3 arranged at one end of the motor shell, wherein one end of the rotor shaft extends out of the motor end cover, and an extending section 21 of the rotor shaft is matched with the sand slinging structure.

Get rid of the sand structure including getting rid of sand cover 4 and stainless steel bushing 5, the outer end that stretches out section 21 sets up external splines structure 22, get rid of the sand cover and overlap and arrange in stretch out the section, at least one section inner wall that gets rid of the sand cover is internal splines structure 41, internal splines structure and external splines structure meshing, the stainless steel bushing includes radial ring 51 and axial sleeve 52, the axial sleeve does the axial ring that turns over that the axle hole department of radial ring pulled up the formation, axial sleeve 52 inserts get rid of the inner cavity of sand cover, and with the inner wall clearance fit of getting rid of the sand cover, radial ring with the cooperation of motor end cover. Improve and get rid of sand cover structure, the stainless steel cover of cooperation at the inner of getting rid of the sand cover simultaneously, improved promptly and got rid of the sand cover along with the rotor shaft reliability rotatory together, improve and get rid of the sand effect, can strengthen again and get rid of the ability that the sand cover inner end prevents the silt entering, increase submersible motor's reliability.

The outer end of the sand throwing sleeve is a bell-mouth sand throwing portion 42, the inner end of the sand throwing sleeve is a sleeve inserting portion 43 of the axial sleeve, the sleeve inserting portion 43 is in clearance fit with the axial sleeve 52, and the axial sleeve 52 is in clearance fit with the extending section 21. Clearance fit between sleeve grafting portion and the axial sleeve is favorable to forming the lubricated film of water between the two, and existing reduction friction that is favorable to influences life can prevent again that the silt particle from getting into get rid of in the sand cover and get into the motor inner chamber along with the rotor shaft rotation, is favorable to improving the sand control ability of motor. Get rid of the outer end of sand cover and get rid of sand portion for the horn mouth, can avoid piling up getting rid of sand cover outer end, also be favorable to improving the sand control ability of motor.

Get rid of the sand cover and still include the interference fit portion 44 of mid portion, the horn mouth get rid of sand portion with sleeve grafting portion is located the both ends of interference fit portion respectively, the inner wall of the outer section of interference fit portion sets up interior spline structure, the inner wall of the inner section of interference fit portion is aureole portion, aureole portion with stretch out the light portion of section and form interference fit. Get rid of the sand cover not only through the cooperation of interior spline structure and external splines structure, still through the interference fit of interference fit portion, make to get rid of the sand cover and can rotate along with the rotor shaft all the time, avoid getting rid of sand cover and rotor shaft formation relative motion, be favorable to improving the sand control ability of getting rid of the motor.

Get rid of sand cover wholly structure as an organic whole, in order to form sleeve grafting portion smoothly, interference fit portion with slope transition portion 45 has between the sleeve grafting portion. The angled transition portion does not contact the outer end of the sleeve spigot portion.

The inner end of the sleeve spigot 43 is spaced from the outer surface of the radial ring 51. In the using process, the stainless steel sleeve is fixed on the end cover of the motor and is relatively static, the sand throwing sleeve rotates along with the rotor shaft, and in order to avoid abrasion caused by contact, a mode of interval arrangement is adopted, the service life is prolonged,

The outer end of the axial sleeve 52 is located axially inwardly of the outer end of the sleeve spigot 43, i.e. the outer end of the axial sleeve is spaced from the inner wall of the inclined transition portion.

The radial ring 51 is provided with a reinforcing concave ring 51-1 or a convex ring, and the radial ring is fixed on the motor end cover through a connecting piece. It is often preferred to provide a reinforcing female ring.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. In the above embodiments, the present invention may be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Improve the submerged motor who gets rid of sand structure, including motor casing, set up the rotor shaft in motor casing, set up the motor end cover in motor casing one end, the one end of rotor shaft is stretched out the motor end cover, the section cooperation that stretches out of rotor shaft gets rid of sand structure, its characterized in that get rid of sand structure including getting rid of sand cover and nonrust steel bushing, the outer end that stretches out the section sets up outer spline structure, get rid of sand cover and arrange in stretch out the section, at least one section inner wall that gets rid of sand cover is the internal spline structure, the meshing of internal spline structure and external spline structure, nonrust steel bushing includes radial ring and axial sleeve, axial sleeve inserts get rid of the inner cavity of sand cover, and with get rid of the inner wall clearance fit of sand cover, radial ring with the cooperation of motor end cover.

2. The submersible motor with the improved sand slinger structure as recited in claim 1, wherein the axial sleeve is an axial turn-up ring formed by pulling up at the axle hole of the radial ring.

3. The submersible motor with the improved sand throwing structure according to claim 1, wherein the outer end of the sand throwing sleeve is a bell-mouth sand throwing portion, the inner end of the sand throwing sleeve is a sleeve insertion portion of the axial sleeve, the sleeve insertion portion is in clearance fit with the axial sleeve, and the axial sleeve is in clearance fit with the extending section.

4. The submersible motor with the improved sand throwing structure according to claim 3, wherein the sand throwing sleeve further comprises an interference fit portion in the middle, the bell-mouth sand throwing portion and the sleeve insertion portion are respectively located at two ends of the interference fit portion, the inner wall of the outer section of the interference fit portion is provided with the inner spline structure, the inner wall of the inner section of the interference fit portion is a light ring portion, and the light ring portion and the light portion of the extending section form interference fit.

5. The submersible motor with the improved sand slinging structure as claimed in claim 4, wherein an inclined transition part is arranged between the interference fit part and the sleeve insertion part.

6. The submersible motor with the improved sand slinger structure as claimed in claim 5, wherein a space is provided between the inner end of the sleeve insertion part and the outer surface of the radial ring.

7. The submersible motor with the improved sand slinger structure as recited in claim 6, wherein the outer end of the axial sleeve is axially inward of the outer end of the sleeve insertion part, i.e. the outer end of the axial sleeve is spaced from the inner wall of the inclined transition part.

8. A submersible motor with an improved sand slinger structure as claimed in claim 1, 2 or 3 wherein said radial ring is secured to said motor end cap by a connector.

9. The submersible motor with improved sand slinger structure as claimed in claim 7, wherein said radial ring is provided with a reinforced concave ring or convex ring, and said radial ring is fixed on said motor end cover by means of a connecting piece.