CN112003394A

CN112003394A - Stepping motor stator and circular stepping motor with same

Info

Publication number: CN112003394A
Application number: CN202010666267.XA
Authority: CN
Inventors: 朱世豪; 邹锦唐
Original assignee: Guangzhou City Nanor Electrical Appliance Co ltd
Current assignee: Guangzhou City Nanor Electrical Appliance Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2020-11-27

Abstract

The invention discloses a stepping motor stator and a circular stepping motor with the same, wherein the stepping motor stator comprises a fixed seat, a stator unit and a rotor unit, the rotor unit is arranged in a circular groove at the top end of the fixed seat, and the left side and the right side of the top end of the fixed seat are both provided with a fixing unit; the stator unit comprises a circular shell, coils, stator convex teeth, tooth poles and mounting plates, twelve stator convex teeth are arrayed on the inner side face of the circular shell, the tooth poles are arranged at the inner side ends of the stator convex teeth, the coils are sleeved on the outer sides of the stator convex teeth, two mounting plates are arranged at the left end and the right end of the outer side face of the circular shell respectively, clamping grooves are formed in the top ends of the two mounting plates, and sound insulation units are arranged on the front side and the rear side of the top end of the circular shell; the stepping motor stator and the circular stepping motor with the stator are simple to use, convenient to disassemble, stable and reliable.

Description

Stepping motor stator and circular stepping motor with same

Technical Field

The invention relates to the technical field of stepping motors, in particular to a stator of a stepping motor and a circular stepping motor with the stator.

Background

The stepping motor mainly comprises a rotor and a stator, wherein the stator is provided with a plurality of stator main poles, the stator main poles are provided with stator teeth, the rotor of the motor is a permanent magnet, and when current flows through a stator winding, the stator winding generates a vector magnetic field. The magnetic field drives the rotor to rotate for an angle, so that the directions of a pair of magnetic fields of the rotor are consistent with the direction of a magnetic field of the stator. When the vector field of the stator rotates an angle. The rotor also rotates an angle with the magnetic field. Every time an electric pulse is input, the motor rotates one angle and advances one step. The angular displacement output by the motor is in direct proportion to the input pulse number, and the rotating speed is in direct proportion to the pulse frequency. By changing the sequence of the energization of the windings, the motor will reverse. Therefore, the rotation of the stepping motor can be controlled by controlling the pulse quantity, the frequency and the electrifying sequence of each phase winding of the motor, the structure of the existing stepping motor is basically a square structure, the square stepping motor occupies large installation space, the torque is limited, improvement is needed, the general motor is inconvenient to disassemble during maintenance, and the motor can generate noise during working, and the noise easily causes damage to the body of an operator.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, provides a stepping motor stator and a circular stepping motor with the same, is simple to use, convenient to disassemble, stable and reliable, and can effectively solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a step motor stator, includes stator unit, and stator unit contains circular shell, coil, stator dogtooth, tooth utmost point and mounting panel, the stator dogtooth has twelve and the array medial surface at circular shell, the medial extremity of stator dogtooth is equipped with the tooth utmost point, the coil has been cup jointed in the outside of stator dogtooth, the mounting panel has two and establishes respectively at the both ends of controlling of circular shell lateral surface, and the top of two mounting panels all is equipped with the draw-in groove, angle between the tooth utmost point is 6.75 degrees, can prevent to appear the deviation between the motor step angle.

Through the stator unit, the smoothness and the reaction speed of the motor during operation can be effectively increased, and meanwhile, the number of the tooth poles is twelve, so that the magnetic field distribution of the coil is more concentrated and uniform, and the output torque of the motor is further improved.

Circular step motor with this stator, including fixing base, stator unit and rotor unit, the rotor unit is established in the circular recess on fixing base top, the left and right sides on fixing base top all is equipped with fixed unit, both sides all are equipped with syllable-dividing unit around the stator unit top, still include control switch, control switch establishes the leading flank at the fixing base, control switch's output is connected to the input electricity of coil, external power source's output is connected to control switch's input electricity.

Further, the rotor unit contains connecting axle, magnetism rotor, ball bearing and pivot, ball bearing rotates with the circular recess on fixing base top and is connected, ball bearing's inside is equipped with the pivot, there is the magnetism rotor the top array of pivot, the top fixedly connected with connecting axle of magnetism rotor can drive the magnetism rotor and rotate under the influence in coil magnetic field to drive the inside pivot of magnetism rotor and rotate.

Further, fixed unit contains runner, screw rod, L template and fixture block, the one side on fixing base top is established to the L template, the screw and the screw rod threaded connection of L template horizontal direction, the top of screw rod is equipped with the runner, the bottom of screw rod is rotated with the middle part of fixture block upper surface and is connected, the fixture block is connected with the draw-in groove looks joint on mounting panel top, can fix circular housing, and circular housing can be quick when needs are maintained simultaneously installs and dismantles.

Further, the sound insulation unit contains kelly, rotation axis, T type piece, connecting block and gives sound insulation the shell, the one side on circular shell top is established to the connecting block, the T type groove on circular shell top cooperatees with T type piece, the outside end of T type piece is equipped with sound insulation the shell, the rotation axis rotates the inboard of connecting on the connecting block top, the outside of rotation axis is equipped with the kelly, can effectually reduce the produced noise of motor when the operation, also can play the effect of buffer protection to circular shell simultaneously.

Further, still include the sealing washer, the bottom at circular shell is established to the sealing washer, can reduce the gap between circular shell and the fixing base, prevents that the rainwater from getting into from the gap and influencing its life.

Further, still include the mount pad, the top at circular shell inside is established to the mount pad, the rotary groove of mount pad bottom cooperatees with the top of connecting axle, and stability when can increasing the magnetism rotor and rotate appears rocking when preventing that the magnetism rotor from rotating.

Further, still include bolt and mounting hole, the mounting hole has four and establishes the four corners on fixing base top respectively, and the equal threaded connection in inside of four mounting holes has the bolt, can install suitable position with the motor, fixes the motor simultaneously.

Compared with the prior art, the invention has the beneficial effects that: this step motor stator and have circular step motor of this stator has following benefit:

1. the smoothness and the reaction speed of the motor during operation can be effectively increased through the stator unit, and meanwhile, the magnetic field distribution of the coil is more concentrated and uniform due to the fact that the number of the tooth poles is twelve, so that the output torque of the motor is improved;

2. the rotor unit can drive the magnetic rotor to rotate under the influence of a coil magnetic field, so as to drive the rotating shaft in the magnetic rotor to rotate, and the sealing ring is arranged, so that a gap between the circular shell and the fixed seat can be reduced, and rainwater is prevented from entering from the gap to influence the service life of the magnetic rotor;

3. the round shell can be fixed through the fixing unit, and can be rapidly installed and disassembled when maintenance is needed, and the installation seat is arranged, so that the stability of the magnetic rotor during rotation can be improved, and the magnetic rotor is prevented from shaking during rotation;

4. through the unit that gives sound insulation, can effectually reduce the produced noise of motor when the operation, also can play the effect of buffering protection to circular housing simultaneously, be equipped with bolt and mounting hole, can install suitable position with the motor, fix the motor simultaneously.

Drawings

Fig. 1 is a schematic structural view of a circular stepping motor having the stator according to the present invention;

FIG. 2 is a schematic structural diagram of a rotor unit in a circular stepping motor having the stator according to the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 1;

fig. 4 is a schematic structural diagram of a stator of a stepping motor according to the present invention.

In the figure: the device comprises a fixed seat 1, a stator unit 2, a circular shell 21, a coil 22, a stator convex tooth 23, a tooth pole 24, a mounting plate 25, a rotor unit 3, a connecting shaft 31, a magnetic rotor 32, a ball bearing 33, a rotating shaft 34, a fixing unit 4, a rotating wheel 41, a screw rod 42, a 43L-shaped plate, a 44 clamping block, a sound insulation unit 5, a clamping rod 51, a rotating shaft 52, a T-shaped block 53, a connecting block 54, a sound insulation shell 55, a sealing ring 6, a mounting seat 7, a bolt 8, a mounting hole 9 and a control switch 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions:

the first embodiment is as follows:

a stepping motor stator and circular stepping motor with the same, comprising a fixed seat 1, a stator unit 2 and a rotor unit 3; the rotor unit 3 is arranged in a circular groove at the top end of the fixed seat 1, and the left side and the right side of the top end of the fixed seat 1 are both provided with a fixed unit 4; the stator unit 2 comprises a circular shell 21, coils 22, stator convex teeth 23, tooth poles 24 and mounting plates 25, twelve stator convex teeth 23 are arrayed on the inner side surface of the circular shell 21, the tooth poles 24 are arranged at the inner side ends of the stator convex teeth 23, the coils 22 are sleeved on the outer sides of the stator convex teeth 23, two mounting plates 25 are arranged at the left end and the right end of the outer side surface of the circular shell 21 respectively, clamping grooves are formed in the top ends of the two mounting plates 25, the angle between the tooth poles 24 is 6.75 degrees, and deviation between motor step angles can be prevented; the front side and the rear side of the top end of the circular shell 21 are respectively provided with the sound insulation units 5, the smoothness and the reaction speed of the motor during operation can be effectively increased through the stator units 2, and meanwhile, the magnetic field distribution of the coil 22 is more concentrated and more uniform due to the fact that the number of the stages of the tooth poles 24 is twelve, and the output torque of the motor is further improved; still include control switch 10, control switch 10 establishes the leading flank at fixing base 1, and the input electricity of coil 22 connects control switch 10's output, and control switch 10's input electricity connects the output of external power source.

Wherein, rotor unit 3 contains connecting axle 31, magnetism rotor 32, ball bearing 33 and pivot 34, and ball bearing 33 rotates with the circular recess on fixing base 1 top to be connected, and ball bearing 33's inside is equipped with pivot 34, and there is magnetism rotor 32 at the top array of pivot 34, and the top fixedly connected with connecting axle 31 of magnetism rotor 32 can drive magnetism rotor 32 under the influence in coil 22 magnetic field and rotate to drive the inside pivot 34 of magnetism rotor 32 and rotate.

Example two:

the difference between this embodiment and the first embodiment is:

in this embodiment, the fixing unit 4 includes a rotating wheel 41, a screw 42, an L-shaped plate 43 and a clamping block 44, the L-shaped plate 43 is disposed on one side of the top end of the fixing base 1, a screw hole of the L-shaped plate 43 in the horizontal direction is in threaded connection with the screw 42, the rotating wheel 41 is disposed on the top end of the screw 42, the bottom end of the screw 42 is rotatably connected with the middle of the upper surface of the clamping block 44, and the clamping block 44 is clamped with a clamping groove on the top end of.

The sound insulation unit 5 comprises a clamping rod 51, a rotating shaft 52, a T-shaped block 53, a connecting block 54 and a sound insulation shell 55, wherein the connecting block 54 is arranged on one side of the top end of the circular shell 21, a T-shaped groove in the top end of the circular shell 21 is matched with the T-shaped block 53, the sound insulation shell 55 is arranged on the outer side end of the T-shaped block 53, the rotating shaft 52 is rotatably connected to the inner side of the top end of the connecting block 54, and the clamping rod 51 is arranged on the outer side.

The sealing ring device further comprises a sealing ring 6, and the sealing ring 6 is arranged at the bottom end of the circular shell 21.

Specifically, set up like this, through fixed unit 4, can fix circular housing 21, simultaneously can be quick when needs are maintained install and dismantle circular housing 21, through sound insulation unit 5, can effectually reduce the produced noise of motor when the operation, also can play the effect of buffer protection to circular housing 21 simultaneously, be equipped with sealing washer 6, can reduce the gap between circular housing 21 and the fixing base 1, prevent that the rainwater from getting into from the gap and influencing its life.

Example three:

the difference between this embodiment and the first embodiment is:

in this embodiment, the mounting base 7 is further included, the mounting base 7 is arranged at the top end inside the circular shell 21, and the rotating groove at the bottom end of the mounting base 7 is matched with the top end of the connecting shaft 31.

Still include bolt 8 and mounting hole 9, mounting hole 9 has four and establishes respectively in the four corners on fixing base 1 top, and the equal threaded connection in inside of four mounting holes 9 has bolt 8.

Specifically, set up like this, be equipped with mount pad 7, stability when can increasing magnetism rotor 32 and rotate appears rocking when preventing that magnetism rotor 32 from rotating, is equipped with bolt 8 and mounting hole 9, can install suitable position with the motor, fixes the motor simultaneously.

When in use: an external power supply is switched on, firstly, the fixed seat 1 is installed at a proper position, the fixed seat 1 is firmly fixed by using a bolt 8 in an installation hole 9, stator convex teeth 23 are arrayed on the inner side surface of the circular shell 21, tooth poles 24 are arranged at the inner side ends of the stator convex teeth 23, and the angle between the tooth poles 24 is 6.75 degrees, so that the deviation between the step angles of the motor can be prevented, the number of the stages of the tooth poles 24 adopts twelve poles, so that the magnetic field distribution of the coil 22 is more concentrated and more uniform, further, the output torque of the motor is improved, a magnetic field is generated after the coil is electrified, the magnetic field drives the magnetic rotor 32 to rotate, a rotating shaft 34 in the magnetic rotor 32 rotates, when the interior of the circular shell 21 needs to be maintained, the rotating wheel 41 drives the screw rod 42 to move up and down, the screw rod 42 drives the clamping block 44 to leave the clamping groove at the top end, then will give sound insulation the T type piece 53 of 55 top inboard of shell and install the T type inslot on connecting block 54 top, and rotate rotation axis 52 and make kelly 51 fix T type piece 53, can effectually reduce the produced noise of motor when moving like this, also can play the effect of buffer protection to circular shell 21 simultaneously, the bottom of circular shell 21 is equipped with sealing washer 6, sealing washer 6 can reduce the gap between circular shell 21 and the fixing base 1, prevent that rainwater from getting into from the gap and influencing its life, the inside top of circular shell 21 is equipped with mount pad 7, the rotary groove of mount pad 7 bottom cooperatees with the top of connecting axle 31, thereby stability when increasing magnetic rotor 32 and rotating, the appearance rocks when preventing magnetic rotor 32 from rotating.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A stepper motor stator, comprising: including stator unit (2), stator unit (2) contain circular shell (21), coil (22), stator dogtooth (23), tooth utmost point (24) and mounting panel (25), stator dogtooth (23) have twelve and the array medial surface at circular shell (21), the medial extremity of stator dogtooth (23) is equipped with tooth utmost point (24), coil (22) have been cup jointed in the outside of stator dogtooth (23), mounting panel (25) have two and establish respectively in the left and right sides both ends of circular shell (21) lateral surface, and the top of two mounting panels (25) all is equipped with the draw-in groove, the angle between tooth utmost point (24) is 6.75 degrees.

2. Circular step motor with this stator, its characterized in that: including fixing base (1), claim 1 stator unit (2) and rotor unit (3), rotor unit (3) are established in the circular recess on fixing base (1) top, the left and right sides on fixing base (1) top all is equipped with fixed unit (4), both sides all are equipped with syllable-dividing unit (5) around stator unit (2) top, still include control switch (10), the leading flank in fixing base (1) is established in control switch (10), the output of control switch (10) is connected to the input electricity of coil (22), the output of external power source is connected to the input electricity of control switch (10).

3. The circular stepping motor having the stator as claimed in claim 2, wherein: rotor unit (3) contain connecting axle (31), magnetism rotor (32), ball bearing (33) and pivot (34), ball bearing (33) rotate with the circular recess on fixing base (1) top and are connected, the inside of ball bearing (33) is equipped with pivot (34), the top array of pivot (34) has magnetism rotor (32), the top fixedly connected with connecting axle (31) of magnetism rotor (32).

4. The circular stepping motor having the stator as claimed in claim 2, wherein: fixed unit (4) contain runner (41), screw rod (42), L template (43) and fixture block (44), one side on fixing base (1) top is established in L template (43), the screw and screw rod (42) threaded connection of L template (43) horizontal direction, the top of screw rod (42) is equipped with runner (41), the bottom of screw rod (42) is rotated with the middle part of fixture block (44) upper surface and is connected, fixture block (44) and the draw-in groove looks joint on mounting panel (25) top.

5. The circular stepping motor having the stator as claimed in claim 2, wherein: sound insulation unit (5) contain kelly (51), rotation axis (52), T type piece (53), connecting block (54) and give sound insulation shell (55), one side on circular shell (21) top is established in connecting block (54), the T type groove on circular shell (21) top cooperatees with T type piece (53), the outside end of T type piece (53) is equipped with sound insulation shell (55), rotation axis (52) rotate to be connected in the inboard on connecting block (54) top, the outside of rotation axis (52) is equipped with kelly (51).

6. The circular stepping motor having the stator as claimed in claim 2, wherein: still include sealing washer (6), establish the bottom at circular shell (21) in sealing washer (6).

7. The circular stepping motor having the stator as claimed in claim 2, wherein: still include mount pad (7), establish on the inside top of circular shell (21) mount pad (7), the rotary groove of mount pad (7) bottom cooperatees with the top of connecting axle (31).

8. The circular stepping motor having the stator as claimed in claim 2, wherein: still include bolt (8) and mounting hole (9), mounting hole (9) have four and establish respectively in the four corners on fixing base (1) top, and the equal threaded connection in inside of four mounting holes (9) has bolt (8).