CN213367547U

CN213367547U - Permanent magnet type stepping motor

Info

Publication number: CN213367547U
Application number: CN202022201607.XU
Authority: CN
Inventors: 戴伟华
Original assignee: Changzhou Jiangnan Keyfind Motor Co ltd
Current assignee: Changzhou Jiangnan Keyfind Motor Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-04
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a permanent magnet stepping motor, including the shell, the acoustic panel has been pasted to the internal surface of shell, and the internally mounted of shell has the motor main part, and the rubber sleeve has been cup jointed on the surface of shell, and the fixed surface of rubber sleeve has the protection piece, and open on the top of shell has the louvre, and open on the shell top has first shaft hole, and the pivot has been passed to the inside in first shaft hole, and first shock attenuation cover has been cup jointed on the surface of pivot. The heat that the motor operation produced dispels the heat through the louvre, and the noise of production is reduced through the abatvoix absorption to it is low to have realized the motor noise, and the radiating effect is good. The permanent magnet stepping motor is convenient to install and is connected with a load, so that the permanent magnet stepping motor is convenient and quick to apply and install. The rubber sleeve is sleeved on the surface of the shell and is provided with a protection block for protecting the shell, so that the safety of the shell is realized, and the collision and damage of the shell are avoided.

Description

Permanent magnet type stepping motor

Technical Field

The utility model belongs to the technical field of step motor, specifically be a permanent magnet type step motor.

Background

The permanent magnet type stepping motor is also called as a PM stepping motor, and a rotor adopts permanent magnet steel; the stator of the stepping motor is processed into claw-shaped tooth poles in a stamping mode, and the rotor adopts radial multi-pole magnetized permanent magnet steel. The principle is as follows: the magnetic field generated by the current direction of the coil is mutually repelled with the magnetic field of the rotor, so that the motor rotates forwards or backwards.

The permanent magnet type stepping motor is characterized in that a magnetic rotor core generates rotation through interaction with a pulse electromagnetic field generated by a stator, and the permanent magnet type stepping motor comprises a rotor part and a stator part: the stator can be a coil, and the rotor can be a permanent magnet; alternatively, the stator may be a permanent magnet and the rotor may be a coil.

Chinese patent of granted publication No. CN204481655U, 7/15/2015, discloses a permanent magnet stepping motor, comprising a rotor and a stator, wherein the rotor comprises an inverted cup-shaped housing, a rotating shaft and a ring-shaped permanent magnet, the housing is connected with the rotating shaft and can drive the rotating shaft to rotate, and the ring-shaped permanent magnet is arranged on the inner circumferential wall of the housing; the stator is arranged in the shell and comprises an upper stator unit and a lower stator unit, and the two stator units are stacked up and down and correspond to the annular permanent magnet. The utility model discloses set up permanent magnet step motor into the structure of stator in the external rotor, the rotor setting is in the outside, and the radiating effect of rotor is better, can avoid permanent magnet temperature to rise and cause magnetic field performance to reduce at the excessive speed, can satisfy the requirement to motor low rotational speed, high moment of torsion in the production, improves the work efficiency of motor.

The existing permanent magnet stepping motor can meet the requirements of low rotating speed and high torque of the motor in production, and the working efficiency of the motor is improved. However, when the stator and the rotor inside the motor move relatively, noise and vibration are generated and then penetrate out of the shell, so that interference is caused to the outside, and the working environment is not facilitated; moreover, when the permanent magnet type stepping motor is used, the permanent magnet type stepping motor is inconvenient to install or connect with a load; and in the using process, the surface of the shell is not provided with a protective anti-collision structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a permanent magnet stepping motor to when solving inside stator of motor and rotor relative motion, can produce the noise, and vibrations, and then wear out the shell outside, cause the interference to outside, be unfavorable for operational environment's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a permanent magnet stepping motor, includes the shell, the acoustic panel has been pasted to the internal surface of shell, the internally mounted of shell has the motor main part, the rubber sleeve has been cup jointed on the surface of shell, the fixed surface of rubber sleeve has the protection piece, open on the top of shell has the louvre, open on the shell top has first shaft hole, the pivot has been passed to the inside in first shaft hole, first shock attenuation cover has been cup jointed on the surface of pivot.

Preferably, a cushion block is fixed to the top end of the shell, a top plate is fixed to the top end of the cushion block, a first mounting hole is formed in the surface of the top plate, a second shaft hole is formed in the surface of the top plate, the rotating shaft penetrates through the second shaft hole, and a second damping sleeve is sleeved on the surface of the rotating shaft.

Preferably, a bottom plate is fixed at the bottom end of the shell, a second mounting hole is formed in the surface of the bottom plate, a groove is formed in the bottom end of the bottom plate, and a shock pad is mounted inside the groove.

Preferably, the shell is of a cylindrical structure, and the protection block is of a rubber hemispherical structure.

Preferably, the rotating shaft is perpendicular to the top end of the shell, and the first damping sleeve is located inside the first shaft hole.

Preferably, the top plate is parallel to the top end of the housing, and the second damping sleeve is located inside the second shaft hole.

Preferably, the bottom plate is of a circular structure, and the shock absorption pad is located right below the shell.

Compared with the prior art, the utility model discloses a permanent magnet type step motor of example:

1. be provided with louvre and abatvoix, during the use, the heat that the motor operation produced, through the louvre heat dissipation, the noise of production reduces through the abatvoix absorption to it is low to have realized the motor noise, and the radiating effect is good.

2. The floor and the top plate are arranged, so that the permanent magnet stepping motor is convenient to install and connect with a load when in use, and the application and the installation of the permanent magnet stepping motor are convenient and quick.

3. Be provided with rubber sleeve and protection piece, during the use, the rubber sleeve cup joints on the surface of shell to be provided with the protection piece, be used for protecting sheathing, thereby realized the safety of shell, avoid shell collision damage.

Drawings

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

fig. 2 is a sectional view taken along the direction a-a of fig. 1 according to the present invention;

fig. 3 is a sectional view taken along the direction B-B of fig. 1 according to the present invention.

In the figure: 1. a base plate; 2. a second mounting hole; 3. a shock pad; 4. a groove; 5. a housing; 6. a sound-absorbing panel; 7. a motor main body; 8. a rubber sleeve; 9. a protection block; 10. a first mounting hole; 11. a top plate; 12. cushion blocks; 13. heat dissipation holes; 14. a second shaft hole; 15. a second damping sleeve; 16. a first damping sleeve; 17. a first shaft hole; 18. a rotating shaft.

Detailed Description

Referring to fig. 1, a permanent magnet stepping motor includes a housing 5, wherein the housing 5 has a cylindrical structure; the inner surface of the shell 5 is adhered with a sound-absorbing board 6 for absorbing and reducing the noise generated by the motor; a motor main body 7 is mounted inside the housing 5.

Referring to fig. 1 and 2, a rubber sleeve 8 is sleeved on the surface of the housing 5, a protection block 9 is fixed on the surface of the rubber sleeve 8, and the protection block 9 is of a rubber hemispherical structure and is used for protecting the housing 5 and avoiding collision damage of the housing 5; the top end of the housing 5 is provided with heat dissipation holes 13, and the heat dissipation holes 13 are located below the top plate 11 for heat dissipation and avoiding falling into dust.

Referring to fig. 1 and 2, a first shaft hole 17 is formed at the top end of the housing 5, a rotating shaft 18 penetrates through the first shaft hole 17, and the rotating shaft 18 is perpendicular to the top end of the housing 5; the surface of pivot 18 has cup jointed first shock attenuation cover 16, and first shock attenuation cover 16 is located inside first axle hole 17 for reduce the friction between pivot 18 and the first axle hole 17, reduce the noise.

Referring to fig. 1 and 2, a cushion block 12 is fixed at the top end of the housing 5, and the cushion block 12 is located at the edge of the top end of the housing 5; a top plate 11 is fixed at the top end of the cushion block 12, the top plate 11 is parallel to the top end of the shell 5, and the diameter of the top plate 11 is not smaller than that of the shell 5; the surface of the top plate 11 is provided with a first mounting hole 10 for facilitating the installation of a motor or the connection of a load.

Referring to fig. 1 and 3, a second shaft hole 14 is formed on the surface of the top plate 11, and the second shaft hole 14 is aligned with the first shaft hole 17 up and down; the rotating shaft 18 penetrates through the second shaft hole 14, the second damping sleeve 15 is sleeved on the surface of the rotating shaft 18, and the second damping sleeve 15 is located inside the second shaft hole 14 and used for reducing friction between the rotating shaft 18 and the second shaft hole 14 and reducing noise.

Referring to fig. 1, a bottom plate 1 is fixed at the bottom end of a housing 5, the bottom plate 1 is a circular structure, and the diameter of the bottom plate 1 is not smaller than that of the housing 5; the surface of the bottom plate 1 is provided with a second mounting hole 2 for mounting a motor; the bottom of bottom plate 1 is opened flutedly 4, and flutedly 4 are circular structure, and the internally mounted of flutedly 4 has shock pad 3, and shock pad 3 is located shell 5 under, reduces the vibrations that the motor produced when using.

The working principle of the scheme is as follows: the shell 5 is fixed at the top end of the bottom plate 1, and after the bottom plate 1 is installed, vibration is reduced through the shock pad 3; the rubber sleeve 8 is sleeved on the surface of the shell 5, and a protection block 9 is arranged for protecting the shell 5 and avoiding collision damage of the shell 5.

The top plate 11 is installed on the top end of the shell 5 through the cushion block 12, the rotating shaft 18 passes through the first shaft hole 17 and the second shaft hole 14, the surface of the rotating shaft is sleeved with the first damping sleeve 16 and the second damping sleeve 15, so that when the motor runs, the friction between the rotating shaft 18 and the shell 5 and between the rotating shaft and the top plate 11 is reduced, and the noise is reduced.

When the motor runs, the generated heat is radiated through the radiating holes 13, and the top plate 11 is positioned above the radiating holes 13, so that dust is prevented from falling into the radiating holes 13 and entering the interior of the motor; the generated noise is reduced by the sound-absorbing plate 6.

Claims

1. A permanent magnet stepping motor comprises a shell (5), and is characterized in that: the utility model discloses a damping device, including shell (5), inner surface, shell (5) have the internal mounting of motor main part (7), rubber sleeve (8) have been cup jointed on the surface of shell (5), the fixed surface of rubber sleeve (8) has protection piece (9), louvre (13) have been opened on the top of shell (5), shell (5) top is opened there are first shaft hole (17), pivot (18) have been passed to the inside in first shaft hole (17), first damping sleeve (16) have been cup jointed on the surface of pivot (18).

2. A permanent magnet stepping motor according to claim 1, wherein: the top of shell (5) is fixed with cushion (12), the top of cushion (12) is fixed with roof (11), open on the surface of roof (11) has first mounting hole (10), open on the surface of roof (11) has second shaft hole (14), second shaft hole (14) are passed in pivot (18), second shock attenuation cover (15) have been cup jointed on the surface of pivot (18).

3. A permanent magnet stepping motor according to claim 1, wherein: the bottom mounting of shell (5) has bottom plate (1), open on the surface of bottom plate (1) has second mounting hole (2), open the bottom of bottom plate (1) has recess (4), the internally mounted of recess (4) has shock pad (3).

4. A permanent magnet stepping motor according to claim 1, wherein: the shell (5) is of a cylindrical structure, and the protection block (9) is of a rubber hemispherical structure.

5. A permanent magnet stepping motor according to claim 1, wherein: the rotating shaft (18) is perpendicular to the top end of the shell (5), and the first damping sleeve (16) is located inside the first shaft hole (17).

6. A permanent magnet stepping motor according to claim 2, wherein: the top plate (11) is parallel to the top end of the shell (5), and the second damping sleeve (15) is located inside the second shaft hole (14).

7. A permanent magnet stepping motor according to claim 3, wherein: the bottom plate (1) is of a circular structure, and the shock pad (3) is located under the shell (5).