CN215267897U

CN215267897U - Small-sized motor

Info

Publication number: CN215267897U
Application number: CN202022505088.6U
Authority: CN
Inventors: 张磊; 张伟
Original assignee: Supersonic Intelligent Technology Hangzhou Co ltd
Current assignee: Supersonic Intelligent Technology Hangzhou Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-12-21
Anticipated expiration: 2030-11-03

Abstract

The utility model provides a small-sized motor, which comprises a motor shell, wherein one end of the motor shell is provided with a through pipe, the other end of the motor shell is provided with a shell cover, the shell cover is provided with a fixed pipe, the inner wall of the motor shell is provided with a motor stator, the inside of the motor shell is provided with a motor rotor, the outer side of one end of a main shaft is provided with an annular limiting groove, a fixed ring is clamped in the limiting groove, and the outer side of the fixed pipe is provided with a fixed cover. The possibility of motor explosion is reduced, and the safety performance of the motor is greatly improved.

Description

Small-sized motor

Technical Field

The utility model belongs to the technical field of the motor technique and specifically relates to a small-size motor is related to.

Background

The motor is an electromagnetic device which converts or transmits electric energy according to the law of electromagnetic induction, or converts one form of electric energy into another form of electric energy. The electric motor converts electric energy into mechanical energy (commonly called as a motor), and the generator converts mechanical energy into electric energy. The motor is represented in the circuit by the letter "M" (old standard is "D"). Its main function is to generate driving torque as power source of electric appliance or various machines.

The traditional motor shaft end component is composed of a simple bearing, a limit groove and the like, a motor rotor is movably clamped inside the motor shaft end component under the interaction of a motor shell and a shell cover, and the design has the following problems; when motor housing and cap separated because of reasons such as the screw drops, motor housing and cap lost the limiting displacement to electric motor rotor, and the main shaft of electric motor rotor tip breaks away from the axle head subassembly, if the motor is when high-speed rotatory, because of the crack appears between motor housing and the cap because of reasons such as collision, can make electric motor rotor lose the parallel, cause the inside damage of motor, produce the condition such as explode even and split.

SUMMERY OF THE UTILITY MODEL

The utility model provides a small-size motor to if what put forward in solving above-mentioned background art if traditional motor when high-speed rotatory, because of reasons such as collision make the crack appear between motor housing and the cap, can make electric motor rotor lose the parallel, cause the internal damage of motor, produce the blast scheduling problem even.

The technical scheme of the utility model is realized like this:

the utility model provides a small-sized motor, includes motor housing, motor housing's one end is provided with the siphunculus, and the cap is installed through set screw to the other end, the central point of cap puts and is provided with fixed pipe, motor housing's inner wall is provided with motor stator, motor housing's inside is provided with electric rotor, electric rotor follows motor stator center passes, just electric rotor's both ends main shaft runs through respectively the siphunculus with fixed pipe, the main shaft runs through annular spacing groove has been seted up in the one end outside of fixed pipe, spacing inslot joint has solid fixed ring, the outside movable mounting of fixed pipe has fixed lid.

Preferably, the fixed pipe and the inside of siphunculus all movably mounted have a bearing, two are run through respectively at the both ends of main shaft two the bearing.

Preferably, an annular top block is arranged at the bottom of the fixed cover, and the top block is tightly attached to the fixed ring.

Preferably, the fixing ring comprises two fixing half rings.

Preferably, one end of the main shaft close to the shell cover is provided with a limiting ring, and the limiting ring corresponds to the fixed tube.

Preferably, the fixed pipe is fixedly connected with the fixed cover through threads.

By adopting the technical scheme, the beneficial effects of the utility model are that:

the utility model discloses a cooperation of solid fixed ring and spacing groove is carried on spacingly to the main shaft, utilizes the screw-thread fit between fixed lid and the fixed pipe simultaneously, carries out spacing fixed to solid fixed ring, and then carries out spacing fixed to electric motor rotor, makes electric motor rotor movable mounting inside the cap, when motor housing and cap receive external striking and split, electric motor rotor can not break away from the axle head subassembly easily, makes electric motor rotor keep steady rotation, reduces the possibility that the motor explodes and splits, improves the security performance of motor greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of the overall front view of the internal structure of the present invention;

fig. 2 is a schematic view of the internal structure of the motor casing and the casing cover in front view;

fig. 3 is a front view of the motor rotor of the present invention;

fig. 4 is a left side view of the fixing ring of the present invention.

Wherein:

1. a motor housing; 2. a shell cover; 201. a fixed tube; 3. pipe passing; 4. a fixed cover; 401. a top block; 5. A motor stator; 6. a motor rotor; 7. a main shaft; 701. a limiting groove; 8. a limiting ring; 9. a bearing; 10. A set screw; 11. a fixing ring; 1101. and fixing the half rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, a small-sized motor, including motor housing 1, motor housing 1's one end is provided with siphunculus 3, the other end installs cap 2 through set screw 10, the central point of cap 2 puts and is provided with fixed pipe 201, motor housing 1's inner wall is provided with motor stator 5, motor housing 1's inside is provided with motor rotor 6, motor rotor 6 passes from motor stator 5 center, and motor rotor 6's both ends main shaft 7 runs through siphunculus 3 and fixed pipe 201 respectively, annular spacing groove 701 has been seted up in the one end outside that main shaft 7 runs through fixed pipe 201, the joint has solid fixed ring 11 in spacing groove 701, the outside movable mounting of fixed pipe 201 has fixed lid 4.

Specifically, bearings 9 are movably mounted inside the fixed pipe 201 and the through pipe 3, and two ends of the main shaft 7 penetrate through the two bearings 9 respectively; the main shaft 7 at the two ends of the motor rotor 6 is prevented from being abraded with the inside of the fixed pipe 201 and the through pipe 3 by arranging the bearing 9, so that the fixed pipe 201 and the through pipe 3 do not influence the normal rotation of the motor rotor 6.

Specifically, the bottom of the fixed cover 4 is provided with an annular top block 401, and the top block 401 is tightly attached to the fixed ring 11; the top block 401 is used for supporting the fixing ring 11, so that the fixing ring 11 is limited in the limiting groove 701, and the fixing ring 11 is prevented from being separated from the limiting groove 701.

Specifically, the stationary ring 11 includes two stationary half rings 1101; by designing the fixing ring 11 into two identical fixing half rings 1101, the two fixing half rings 1101 can be conveniently placed inside the limiting groove 701, so as to form a complete annular structure, thereby facilitating the limiting and fixing of the main shaft 7.

Specifically, the one end that main shaft 7 is close to cap 2 is provided with spacing ring 8, and spacing ring 8 corresponds each other with fixed pipe 201, can inject main shaft 7 through setting up spacing ring 8 and stretch out the length of fixed pipe 201, avoids main shaft 7 to push up fixed lid 4, makes spacing groove 701 just expose fixed pipe 201 simultaneously, and the convenience is put into spacing groove 701 inside with fixed ring 11.

Specifically, the fixed pipe 201 is fixedly connected with the fixed cover 4 through threads; so set up, through threaded connection, the messenger that can be convenient is fixed to be covered 4 and is carried out dismouting work at fixed pipe 201 tip, makes things convenient for the equipment and the maintenance of motor.

The working principle is as follows:

when the motor rotor is used, the motor rotor 6 is placed in the motor shell 1, one end 7 of the main shaft 7, which is provided with the limiting ring 8, penetrates through the fixing tube 201 from the inner end of the shell cover 2, the other end penetrates through the through tube 3 from the inside of the motor shell 1, the motor shell 1 and the shell cover 2 are connected and fixed through the fixing screw 10, the motor rotor 6 is sealed in the motor shell 1, the two fixing half rings 1101 are placed in the limiting groove 701, the two fixing half rings 1101 form a complete fixing ring 11, the fixing cover 4 is installed at the outer end of the fixing cover 4 through thread matching, the fixing ring 11 is limited and fixed through the fixing cover 4, the main shaft 7 at one end of the motor rotor 6 is movably installed in the shell cover 2, when the motor shell 1 and the shell cover 2 are collided and split by the outside, the main shaft 7 on the motor rotor 6 cannot easily separate from the shaft end component, and the motor rotor 6 keeps stable rotation, the possibility of motor explosion is reduced, and the safety performance of the motor is greatly improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A small-sized motor characterized in that: comprises a motor shell (1), one end of the motor shell (1) is provided with a through pipe (3), the other end is provided with a shell cover (2) through a fixing screw (10), a fixed pipe (201) is arranged at the central position of the shell cover (2), a motor stator (5) is arranged on the inner wall of the motor shell (1), a motor rotor (6) is arranged in the motor shell (1), the motor rotor (6) penetrates through the center of the motor stator (5), and the main shafts (7) at the two ends of the motor rotor (6) respectively penetrate through the through pipe (3) and the fixed pipe (201), an annular limiting groove (701) is formed in the outer side of one end, penetrating through the fixed pipe (201), of the main shaft (7), the limiting groove (701) is internally connected with a fixing ring (11) in a clamping manner, and a fixing cover (4) is movably arranged on the outer side of the fixing pipe (201).

2. A small-sized motor according to claim 1, wherein: the fixed pipe (201) with the inside of siphunculus (3) all movable mounting has bearing (9), two are run through respectively at the both ends of main shaft (7) bearing (9).

3. A small-sized motor according to claim 1, wherein: the bottom of the fixed cover (4) is provided with an annular top block (401), and the top block (401) is tightly attached to the fixed ring (11).

4. A small-sized motor according to claim 1, wherein: the stationary ring (11) comprises two stationary half rings (1101).

5. A small-sized motor according to claim 1, wherein: one end of the main shaft (7) close to the shell cover (2) is provided with a limiting ring (8), and the limiting ring (8) corresponds to the fixed pipe (201).

6. A small-sized motor according to claim 1, wherein: the fixed pipe (201) is fixedly connected with the fixed cover (4) through threads.