阅读说明：本技术 一种无刷力矩电机及其制备工艺 (Brushless torque motor and preparation process thereof ) 是由 刘鑫茂 于 2021-09-16 设计创作，主要内容包括：本发明公开了一种无刷力矩电机及其制备工艺,旨在提供了一种抗冲击能力强、抗振动、转动稳定的无刷力矩电机及其制备工艺。包括外壳,所述外壳内设置有筒状的转子,所述转子内设置有定子,所述定子的一端面和转子的内底面之间连接有缓冲装置,所述定子的另一端面与外壳连接,所述定子设置有若干电枢绕组,若干电枢绕组数量为三的倍数,所述转子内壁设置有若干永磁体,所述电枢绕组和永磁体相对应,所述外壳外侧设置有控制器,所述控制器与定子电连接。本发明的有益效果是：确保电机转动的稳定性；保证电机抗冲击、抗振动。(The invention discloses a brushless torque motor and a preparation process thereof, and aims to provide a brushless torque motor with strong shock resistance, vibration resistance and stable rotation and a preparation process thereof. The motor rotor comprises a housing, be provided with the rotor of tube-shape in the shell, be provided with the stator in the rotor, be connected with buffer between an terminal surface of stator and the interior bottom surface of rotor, another terminal surface and the shell of stator are connected, the stator is provided with a plurality of armature windings, and a plurality of armature windings quantity is the multiple of three, the rotor inner wall is provided with a plurality of permanent magnets, armature winding and permanent magnet are corresponding, the shell outside is provided with the controller, the controller is connected with the stator electricity. The invention has the beneficial effects that: the stability of the rotation of the motor is ensured; the motor is ensured to resist impact and vibration.)

1. The utility model provides a brushless torque motor, characterized by, includes shell (1), be provided with rotor (2) of tube-shape in shell (1), be provided with stator (3) in rotor (2), be connected with buffer (4) between the interior bottom surface of a terminal surface of stator (3) and rotor (2), another terminal surface and shell (1) of stator (3) are connected, stator (3) are provided with a plurality of armature winding (5), and a plurality of armature winding (5) quantity is the multiple of three, rotor (2) inner wall is provided with a plurality of permanent magnet (6), armature winding (5) and permanent magnet (6) are corresponding, the shell (1) outside is provided with controller (7), controller (7) are connected with stator (3) electricity.

2. A brushless torque motor according to claim 1, wherein the rotor (2) comprises a rotating cylinder (20), the inner bottom surface of the rotating cylinder (20) is provided with an annular guide groove (21), the guide groove (21) corresponds to the buffering device (4), the side wall of the rotating cylinder (20) is provided with a plurality of fixing grooves (22), the fixing grooves (22) are internally provided with permanent magnets (6), the middle of the rotating cylinder (20) is connected with a stabilizer bar (23), and the stabilizer bar (23) is connected with the stator (3).

3. A brushless torque motor as claimed in claim 2, wherein the stabilizer bar (23) is a cylindrical bar, a stabilizer plate (24) is connected to a middle portion of the stabilizer bar (23), an annular lower ball groove (25) is formed in an upper surface of the stabilizer plate (24), and a plurality of balls (26) are disposed in the lower ball groove (25).

4. A brushless torque motor according to claim 3, wherein the stator (3) is provided with a relief hole (30) in the middle, a relief groove (31) is provided in the middle of the side wall of the relief hole (30), an upper ball groove (32) is provided on the upper inner side surface of the relief groove (31), the stabilizer bar (23) is disposed in the relief hole (30), the stabilizer disc (24) is disposed in the relief groove (31), and the upper ball groove (32) is in contact with the balls (26).

5. A brushless torque motor as claimed in claim 1, wherein copper wires (50) are wound around the armature winding (5), the copper wires (50) being connected to the controller (7).

6. A brushless torque motor as claimed in claim 2, wherein the damping device (4) comprises a plurality of connecting tubes (40), a spring (41) is disposed in each connecting tube (40), one end of each connecting tube (40) is connected with a connecting piece (42), the other end of each connecting tube (40) faces the guide groove (21), one end of each spring (41) is connected with the corresponding connecting piece (42), the other end of each spring (41) is connected with a damping ball (43), the connecting pieces (42) are connected with the upper end faces of the stators (3), and the damping balls (43) are embedded in the guide grooves (21) and contact with the bottom faces of the guide grooves (21).

7. A brushless torque motor as claimed in claim 6, wherein an inner surface of an end portion of the connection pipe (40) facing one end of the guide groove (21) is provided with a stopper ring (44), an inner diameter of the stopper ring (44) is smaller than a diameter of the buffer ball (43), and the buffer ball (43) is in contact with the stopper ring (44).

8. A brushless torque motor as claimed in claim 1, wherein a rotating shaft (27) is connected to a middle portion of an outer bottom surface of the rotating drum (20), an end portion of the rotating shaft (27) penetrates through the housing (1), a limiting disc (28) is connected to a middle portion of the rotating shaft (27), and the limiting disc (28) is disposed between the rotating drum (20) and the housing (1) and contacts with an inner wall of the housing (1).

9. The brushless torque motor according to claim 8, wherein the housing (1) comprises a housing (10) and a housing cover (11), the housing (10) is detachably connected with the housing cover (11), a through hole (12) is formed in the middle of the housing cover (11), the through hole (12) is sleeved with the rotating shaft (27), a connecting column (13) and a clamping block (14) are arranged in the middle of the inner bottom surface of the housing (10), the connecting column (13) is arranged in the middle of the inner bottom surface of the housing (10) and sleeved with the abdicating hole (30), the clamping block (14) is arranged on one side of the connecting column (13), a clamping groove (33) is formed in the lower end face of the stator (3), and the clamping block (14) is connected with the clamping groove (33).

10. A preparation process of a brushless torque motor is characterized by comprising the following specific steps,

manufacturing a stator: processing an iron core of the stator (3) according to the process requirements, and finishing winding of the armature winding (5);

manufacturing a rotor: processing a rotary drum (20), wherein a permanent magnet (6) is arranged on the inner side wall of the rotary drum (20), a stabilizer bar (23) is arranged in the middle of the inner bottom surface of the rotary drum (20), and a rotating shaft (27) is arranged on the outer bottom surface of the rotary drum (20);

processing a buffer device: the spring (41) is connected with the buffer ball (43) and is placed in the connecting pipe (40), and the connecting pipe (40) is connected with the connecting sheet (42);

processing a shell: according to the process requirements, a through hole (10) on the top surface and an inner bottom surface of a shell (1) are processed, and a connecting column (11) and a clamping block (12) are arranged;

assembling the components: stator (3) are connected with buffer (4), cup joint in rotor (2) is arranged in to stator (3), and stator (3) and rotor (2) are accomplished to assemble the back and are closed with shell (1), and the shell (1) outside is installed in controller (7), and copper line (50 good) on stator (3) are connected with controller (7).

Technical Field

The invention relates to the technical field of brushless motors, in particular to a brushless torque motor and a preparation process thereof.

Background

The brushless torque motor is mainly used for the executing mechanisms of moving parts of a holder, a nacelle and an observing and aiming seeker, and can realize high-performance application of low speed and large torque.

However, when the conventional brushless torque motor receives an impact or vibration, the rotation is unstable, the performance is reduced, and the reliability of the product is lowered.

Disclosure of Invention

The invention provides a brushless torque motor with strong shock resistance, vibration resistance and stable rotation and a preparation process thereof, aiming at overcoming the defect of shock resistance of the motor in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a brushless torque motor, includes the shell, be provided with the rotor of tube-shape in the shell, be provided with the stator in the rotor, be connected with buffer between an terminal surface of stator and the interior bottom surface of rotor, another terminal surface and the shell of stator are connected, the stator is provided with a plurality of armature windings, and a plurality of armature windings quantity is the multiple of three, the rotor inner wall is provided with a plurality of permanent magnets, armature winding and permanent magnet are corresponding, the shell outside is provided with the controller, the controller is connected with the stator electricity.

The rotor is arranged in the shell and is in a cylindrical shape, the stator is arranged in the rotor and is fixedly connected with the shell. The buffer device is arranged between the stator and the inner bottom surface of the rotor, and when the rotor is impacted axially, the buffer device can absorb the impact force, so that the impact resistance is enhanced, and the anti-vibration effect is exerted. The stator is provided with a plurality of armature windings which are uniformly arranged on the outer side surface of the stator, and the number of the armature windings is a multiple of three, so that the stable rotation of the rotor is ensured. The inner wall of the rotor is provided with the same number of permanent magnets as the armature windings. And a controller is arranged on the outer side of the shell and is electrically connected with the stator. The controller controls the direction of current passing through the upper armature winding of the stator to control the rotation of the rotor and ensure that the rotor can stably rotate.

Preferably, the rotor includes a rotating drum, an annular guide groove is formed in the inner bottom surface of the rotating drum, the guide groove corresponds to the buffer device, a plurality of fixing grooves are formed in the side wall of the rotating drum, permanent magnets are arranged in the fixing grooves, a stabilizer bar is connected to the middle of the rotating drum, and the stabilizer bar is connected to the stator. The guide groove is an annular groove and is correspondingly connected with the buffer device, so that the buffer device rotates in the guide groove to play a role in guiding; the stabilizer bar serves to stabilize the rotation of the rotor.

Preferably, the stabilizer bar is a cylindrical bar, the middle of the stabilizer bar is connected with a stabilizer disc, the upper surface of the stabilizer disc is provided with an annular lower ball groove, and a plurality of balls are arranged in the lower ball groove. Stabilizer bar middle part sets up stablizes the dish, places a plurality of balls in the lower ball inslot on the stabilizer dish, and a plurality of balls fill in whole lower ball inslot, and the ball plays the effect of the resistance that produces when lightening the rotation, makes to rotate more smoothly, guarantees simultaneously that the rotor can stably rotate.

Preferably, the stator middle part is provided with the hole of stepping down, the middle part of the hole lateral wall of stepping down is provided with the groove of stepping down, the last medial surface in the groove of stepping down is provided with the ball groove, it is downthehole to step down in the stabilizer bar is arranged in, the inslot of stepping down is arranged in to the stabilizer bar, go up ball groove and ball contact. The stabilizing disc is embedded into the abdicating groove, the balls are contacted with the upper ball groove, the relative position relation of the stator and the rotor is ensured, and the rotor can stably rotate; the ball contacts with the upper ball groove, so that the rotor can be smoothly and stably rotated.

Preferably, a copper wire is wound around the armature winding, and the copper wire is connected to a controller. The copper wires wound on the armature windings are divided into three, when winding is conducted, the adjacent three armature windings are wound by different copper wires respectively, the three armature windings are sequentially wound in a group, and the three copper wires are connected with the controller respectively to guarantee stable rotation of the rotor.

Preferably, the buffering device comprises a plurality of connecting pipes, springs are arranged in the connecting pipes, one end of each connecting pipe is connected with a connecting sheet, the other end of each connecting pipe faces the guide groove, one end of each spring is connected with the corresponding connecting sheet, the other end of each spring is connected with a buffering ball, the connecting sheet is connected with the upper end face of the stator, and the buffering balls are embedded into the guide grooves and are in contact with the bottom faces of the guide grooves. The connecting pipes are arranged in a circular shape, the distance between the connecting pipes is uniform, the springs are arranged in the connecting pipes and are connected with the buffering balls, the buffering balls are arranged in the guide grooves, the buffering balls extend out of the connecting pipes and are lower than the radius of the buffering balls, the buffering balls are guaranteed to press the springs when the rotor is impacted, the received impact force is converted into the elastic force of the springs, the impact force is offset, and the impact resistance and the vibration resistance of the motor are guaranteed.

Preferably, the inner surface of the end part of one end, facing the guide groove, of the connecting pipe is provided with a limiting ring, the inner diameter of the limiting ring is smaller than the diameter of the buffering ball, and the buffering ball is in contact with the limiting ring. The limiting ring can limit the buffer ball to extend out of the connecting pipe, so that a buffer structure formed by the buffer ball and the spring is ensured, and the effects of impact resistance and vibration resistance are ensured.

Preferably, the middle part of the outer bottom surface of the rotating drum is connected with a rotating shaft, the end part of the rotating shaft penetrates through the shell, the middle part of the rotating shaft is connected with a limiting disc, and the limiting disc is arranged between the rotating drum and the shell and is in contact with the inner wall of the shell. The rotating shaft is used as an external end of the motor to realize the output of the rotation of the motor; the limiting disc arranged in the middle of the rotating shaft plays a role in limiting the rotating shaft and the rotor to move outwards, and the position of the rotor in the shell is guaranteed while the buffering effect of the buffering device is guaranteed.

As preferred, the shell includes casing and cap, the casing can be dismantled with the cap and be connected, the cap middle part is provided with the through-hole, the through-hole cup joints with the pivot, the interior bottom surface middle part of casing is provided with spliced pole and fixture block, the spliced pole is arranged in the middle part of the interior bottom surface of casing and is cup jointed with the hole of stepping down, spliced pole one side is arranged in to the fixture block, the lower extreme terminal surface of stator is provided with the draw-in groove, the fixture block is connected with the draw-in groove. The spliced pole is embedded into the hole of stepping down, and in the fixture block was embedded into the draw-in groove that terminal surface set up under the stator, guaranteed that the stator is connected and the two can not take place relative slip with the shell, guaranteed that the stator keeps motionless when the motor rotates, the rotor rotates, ensures motor pivoted stability.

A preparation process of a brushless torque motor comprises the following steps,

1) manufacturing a stator: processing a stator core according to the process requirements, and finishing winding of an armature winding;

2) manufacturing a rotor: processing a rotary drum, wherein a permanent magnet is arranged on the inner side wall of the rotary drum, a stabilizer bar is arranged in the middle of the inner bottom surface of the rotary drum, and a rotating shaft is arranged on the outer bottom surface of the rotary drum;

3) processing a buffer device: the spring is connected with the buffer ball and is placed in the connecting pipe, and the connecting pipe is connected with the connecting sheet;

4) processing a shell: according to the process requirements, a connecting column and a clamping block are arranged on the through hole on the top surface and the inner bottom surface of the processed shell;

5) assembling the components: the stator is connected with buffer, cup joints in arranging the rotor in to the stator, and the stator attaches together with the shell after accomplishing the equipment with the rotor, and the shell outside is installed to the controller, and the copper line on the stator is connected with the controller.

And processing an iron core of the stator, wherein a yielding hole is formed in the middle of the iron core, and a yielding groove is processed in the side wall of the yielding hole. And winding of the armature winding outside the core is completed. Three different copper lines use adjacent three armature winding as a set of wiring in proper order, and when armature winding was three, three copper lines were the wiring respectively on different armature winding, when armature winding was greater than three, same copper line adopted two armature winding's in interval mode wiring, and three different copper lines accomplish the wiring in proper order. When the rotor is processed, a fixed groove is processed on the inner side wall of the rotary drum, a permanent magnet is fixed in the fixed groove, a stabilizer bar is installed in the middle of the inner bottom surface of the rotary drum, and a stabilizer disc is sleeved on the stabilizer bar. The outer bottom surface at the rotary drum installs the pivot, cup joints spacing dish on the pivot middle part. One end of the spring is connected with a buffer ball, and the other end of the spring is fixed on the connecting piece. The connecting pipe is sleeved with the spring, one end of the connecting pipe is fixed on the connecting piece, the other end of the connecting pipe is provided with a limiting ring, and the limiting ring limits the buffer ball to be ejected outwards. The top surface of shell processes the through-hole, makes the pivot pass through, and the interior bottom surface of shell sets up spliced pole and fixture block, and spliced pole and fixture block play fixed stator effect. The stator is connected with the inner bottom surface of the shell, the connecting column is embedded into the abdicating hole, and the clamping block is embedded into the clamping groove, so that the stator and the shell are ensured to be relatively fixed. Buffer is connected to the stator up end, and the rotor cup joints with the stator, and in the stabilizer bar embedded into the hole of stepping down, the buffering ball among the buffer entered into the guide way. The through-hole that the upper portion of shell set up passes the pivot, and spacing dish is arranged in between shell and the rotor, realizes limiting displacement, guarantees buffer's availability. The controller is connected with the bottom surface of the shell and the copper wire, so that the function of rotating the motor is realized.

The invention has the beneficial effects that: the stability of the rotation of the motor is ensured; the motor is ensured to resist impact and vibration.

Drawings

FIG. 1 is a first cross-sectional view of the present invention;

FIG. 2 is a second cross-sectional view of the present invention;

FIG. 3 is an enlarged view at A in FIG. 1;

FIG. 4 is an enlarged view at B of FIG. 1;

FIG. 5 is a perspective view of a rotor according to the present invention;

fig. 6 is a perspective view of a stator according to the present invention.

In the drawings, there is shown in the drawings,

1. the rotor type motor comprises a shell, 2, a rotor, 3, a stator, 4, a buffer device, 5, an armature winding, 6, a permanent magnet, 7, a controller, 10, a shell, 11, a shell cover, 12, a through hole, 13, a connecting column, 14, a fixture block, 20, a rotating drum, 21, a guide groove, 22, a fixing groove, 23, a stabilizer bar, 24, a stabilizer disc, 25, a lower ball groove, 26, a ball, 27, a rotating shaft, 28, a limiting disc, 30, an abdicating hole, 31, an abdicating groove, 32, an upper ball groove, 33, a clamping groove, 40, a connecting pipe, 41, a spring, 42, a connecting piece, 43, a buffer ball, 44, a limiting ring and 50 copper wires.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

Embodiment 1, as shown in fig. 1, a brushless torque motor includes a housing 1. A cylindrical rotor 2 is provided in the housing 1. A stator 3 is provided in the rotor 2. A buffer device 4 is connected between one end surface of the stator 3 and the inner bottom surface of the rotor 2. The other end face of the stator 3 is connected to the housing 1. The stator 3 is provided with a plurality of armature windings 5, and the number of the armature windings 5 is a multiple of three. The inner wall of the rotor 2 is provided with a plurality of permanent magnets 6. The armature winding 5 and the permanent magnet 6 correspond. The controller 7 is arranged outside the shell 1. The controller 7 is electrically connected to the stator 3.

As shown in fig. 2, 3 and 5, the rotor 2 includes a drum 20. The inner bottom surface of the drum 20 is provided with an annular guide groove 21. The guide groove 21 corresponds to the damper 4. The drum 20 is provided with a plurality of fixing grooves 22 on a side wall thereof. The permanent magnet 6 is provided in the fixing groove 22. A stabilizer bar 23 is attached to the middle of the drum 20. The stabilizer bar 23 is connected to the stator 3. The stabilizer bar 23 is a cylindrical bar. The stabilizer bar 23 is connected with a stabilizer plate 24 in the middle. The upper surface of the stabilizing disc 24 is provided with an annular lower ball groove 25. A plurality of balls 26 are provided in the lower ball groove 25.

As shown in fig. 2, 3 and 6, the middle part of the stator 3 is provided with a relief hole 30. The middle part of the side wall of the abdicating hole 30 is provided with an abdicating groove 31. The upper inner side surface of the receding groove 31 is provided with an upper ball groove 32. The stabilizer bar 23 is placed in the escape hole 30. The stabilizing disc 24 is placed in the relief groove 31. The upper ball groove 32 is in contact with the balls 26.

As shown in fig. 2 and 6, a copper wire 50 is wound around the armature winding 5. The copper wire 50 is connected to the controller 7.

As shown in fig. 2 and 4, the buffer device 4 includes a plurality of connection pipes 40. A spring 41 is provided in the connection pipe 40. One end of the connection pipe 40 is connected with a connection piece 42. The other end of the connection pipe 40 faces the guide groove 21. One end of the spring 41 is connected to the connecting piece 42. The other end of the spring 41 is connected with a buffer ball 43. The connecting piece 42 is connected with the upper end face of the stator 3. The buffer ball 43 is fitted into the guide groove 21 and contacts the bottom surface of the guide groove 21. An end inner surface of the connecting pipe 40 toward one end of the guide groove 21 is provided with a stopper ring 44. The inner diameter of the retainer ring 44 is smaller than the diameter of the buffer ball 43. The damping balls 43 are in contact with the stop collar 44.

As shown in FIG. 2, a rotation shaft 27 is connected to the middle of the outer bottom surface of the drum 20. The end of the shaft 27 passes through the housing 1. The middle part of the rotating shaft 27 is connected with a limiting disc 28. The limiting disc 28 is arranged between the rotary drum 20 and the shell 1 and is contacted with the inner wall of the shell 1.

As shown in fig. 1 and 2, the housing 1 includes a case 10 and a case cover 11. The housing 10 is detachably connected to the housing cover 11. The middle part of the shell cover 11 is provided with a through hole 12. The through hole 12 is sleeved with the rotating shaft 27. The middle part of the inner bottom surface of the shell 10 is provided with a connecting column 13 and a clamping block 14. The connecting column 13 is arranged in the middle of the inner bottom surface of the shell 10 and is sleeved with the abdicating hole 30. The latch 14 is arranged at one side of the connecting pole 13. The lower end face of the stator 3 is provided with a clamping groove 33. The latch 14 is connected to the latch groove 33.

A preparation process of a brushless torque motor comprises the following steps,

1) manufacturing a stator: processing the iron core of the stator 3 according to the process requirements, and finishing the winding of the armature winding 5;

2) manufacturing a rotor: processing a rotary drum 20, wherein a permanent magnet 6 is arranged on the inner side wall of the rotary drum 20, a stabilizer bar 23 is arranged in the middle of the inner bottom surface of the rotary drum 20, and a rotating shaft 27 is arranged on the outer bottom surface of the rotary drum 20;

3) processing a buffer device: the spring 41 is connected with the buffer ball 43 and is placed in the connecting pipe 40, and the connecting pipe 40 is connected with the connecting sheet 42;

4) processing a shell: according to the process requirements, a through hole 10 on the top surface and an inner bottom surface of the shell 1 are processed to form a connecting column 11 and a clamping block 12;

5) assembling the components: stator 3 is connected with buffer 4, and 2 endotheca of rotor are arranged in to stator 3, and stator 3 and rotor 2 accomplish the equipment back and attach together with shell 1, and the controller 7 is installed in the shell 1 outside, and copper line 50 on the stator 3 is connected with controller 7.

The working principle of the invention is as follows: as shown in fig. 1 to 6, the damper 4 connected to the upper end surface of the stator 3 is connected to a guide groove 21 provided on the inner bottom surface of the rotor 2. When the rotor 2 rotates, the buffer ball 43 arranged in the buffer device 4 forms point contact with the guide groove 21, so that the stability during rotation is ensured, and meanwhile, when the rotor and the rotating shaft 27 are impacted or vibrated, the spring 41 and the buffer ball 43 in the buffer device 4 can convert the force generated by the impact and vibration into the elastic force of the spring, so that the effects of impact resistance and vibration resistance are realized, the stable operation of the motor is ensured, and the working stability of the motor is ensured.