阅读说明：本技术 一种高精度自平衡静音马达 (A kind of mute motor of high-precision self-balancing ) 是由 孙新年 于 2019-10-08 设计创作，主要内容包括：本发明提供一种高精度自平衡静音马达,该静音马达包括：壳体、轴承固定架、转轴、动平衡结构、马达定子和马达转子。其中,具有上壳体和下壳体的壳体通过柔性固定件与马达固定架进行固定连接,用于减缓壳体传递给马达固定架的振动。轴承固定架设置于壳体内,轴承固定架与壳体之间设置有弹性限位环,用于对轴承固定架进行限位以及缓冲减振。转轴通过支撑轴承设置于轴承固定架上。动平衡结构设置于转轴上,且与轴承固定架接触,用于动平衡调整以及减缓振动。本发明提供的静音马达通过特殊的动平衡结构,将马达的转轴转动稳定性进一步提升,且该动平衡结构能够吸能减振,进而降低噪音。(The present invention provides a kind of mute motor of high-precision self-balancing, which includes: shell, bearing fixed frame, shaft, dynamic balance structure, motor stator and motor rotor.Wherein, the shell with upper housing and lower case is fixedly connected by flexible attachment and motor mount, and the vibration of motor mount is passed to for slowing down shell.Bearing fixed mount setting is provided with elastic spacing ring in shell between bearing fixed frame and shell, for carrying out limit and buffer shock-absorbing to bearing fixed frame.Shaft is set on bearing fixed frame by spring bearing.Dynamic balance structure is set in shaft, and is contacted with bearing fixed frame, and dynamic balancing adjustment and slowing down vibration are used for.Mute motor provided by the invention is further promoted the shaft rotational stability of motor by special dynamic balance structure, and the dynamic balance structure can energy-obsorbing and damping, and then reduce noise.)

1. a kind of mute motor of high-precision self-balancing, which is characterized in that the mute motor includes:

Shell (1), bearing fixed frame (2), shaft (3), dynamic balance structure (4), motor stator (5) and motor rotor (6), In,

The shell (1) with upper housing (11) and lower case (12) by flexible attachment (7) and motor mount (8) into Row is fixedly connected, and the vibration of the motor mount (8) is passed to for slowing down the shell (1)；

The bearing fixed frame (2) is set in the shell (1), sets between the bearing fixed frame (2) and the shell (1) Elastic spacing ring (9) are equipped with, for carrying out limit and buffer shock-absorbing to the bearing fixed frame (2)；

The shaft (3) is set on the bearing fixed frame (2) by spring bearing (10)；

The dynamic balance structure (4) is set on the shaft (3), and contacts with the bearing fixed frame (2), is used for dynamic balancing Adjustment and slowing down vibration；And

The motor stator (5) is fixed on the upper of the bearing fixed frame (2), and the motor rotor (6) is centered around the motor The outside of stator (5), and the motor rotor (6) is fixed on the shaft (3).

2. the mute motor of high-precision self-balancing according to claim 1, which is characterized in that the mute motor have one or Multiple dynamic balance structures (4), the dynamic balance structure (4) include: flexible fastening piece (13) and adjust bearing (14), In,

It is provided with the flexible fastening piece (13) in the ring of adjustment bearing (14) and outside ring, the flexible fastening piece (13) For carrying out vibration damping and dynamic balance adjustment.

3. the mute motor of high-precision self-balancing according to claim 2, which is characterized in that in adjustment bearing (14) ring The flexible fastening piece (13) contacted with the shaft (3), for transmitting the radial force of the shaft (3) and to described turn Axis (3) applies elastic reaction.

4. the mute motor of high-precision self-balancing according to claim 2, which is characterized in that outside adjustment bearing (14) ring The flexible fastening piece (13) contact the bearing fixed frame (2), for transmitting the radial force of the shaft (3) and to institute It states shaft (3) and applies elastic reaction.

5. the mute motor of high-precision self-balancing according to claim 2, which is characterized in that outside adjustment bearing (14) ring The flexible fastening piece (13) also contact the shell (1), support the bearing fixed frame (2) for fixed.

6. the mute motor of high-precision self-balancing according to claim 2, which is characterized in that the flexible fastening piece (13) is Elastic component with certain elasticity modulus after flexible material is either processed.

7. the mute motor of high-precision self-balancing according to claim 1, which is characterized in that the dynamic balance structure (4) Outside is provided with the fixed lid (15) of bearing, for fixing the position of the spring bearing (10) and the dynamic balance structure (4).

8. the mute motor of high-precision self-balancing according to claim 1, which is characterized in that the shaft (3) and the branch It supports for interference fit between bearing (10), is interference fit between the bearing fixed frame (2) and the spring bearing (10).

9. the mute motor of high-precision self-balancing according to claim 1, which is characterized in that the bearing fixed frame (2) with O-ring (16) are additionally provided between the shell (1), for preventing the bearing fixed frame (2) from rigidly connecing with the shell (1) Touching slows down the shaft (3) because vibrating caused by rotation.

10. the mute motor of high-precision self-balancing according to claim 1, which is characterized in that the mute motor further include: drive Movable plate (17) and shaft oil sealing (18), wherein

The driving plate (17) is fixed on the bearing fixed frame (2), for connect motor rotor described in power drives (6) into Row rotation；And

The opening in the upper housing (11) is arranged in the shaft oil sealing (18), the oil for preventing the shell (1) internal Leakage.

Technical field

The present invention relates to technical field of motors more particularly to motor noise reduction, specially a kind of mute horse of high-precision self-balancing It reaches.

Background technique

The noise reduction and vibration damping of motor always are the target that industrial processes are pursued, currently used in the market either to hand over Motor or DC Brushless Motor are flowed, all there are problems that the vibration and noise of motor cannot be precisely controlled jointly, to reduce motor The vibration generated is rotated, rotor needs to do dynamic balancing in production link, increases production cycle and cost, and it is difficult to ensure that turn The dynamically balanced stability of son, leads to that the vibration and noise of motor cannot be precisely controlled.

The shaft that rotor is fixed will receive the active force of different directions when rotated, and active force is unbalanced will to generate vibration It is dynamic, while can also generate noise.Vibration can carry out certain destruction to equipment belt, and noise will affect people's production, life Environmental quality.The operation noise of blower is effectively reduced, it will help improve the noise circumstance in our production and life.

The present invention reduces the vibration of motor in view of the above-mentioned problems, bearing and pivot structure to motor are transformed, And then reduce running noise.

Summary of the invention

It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of mute motors of high-precision self-balancing, this is quiet Sound motor is further promoted the shaft rotational stability of motor, and the dynamic balance structure energy by special dynamic balance structure Enough energy-obsorbing and dampings, reduce noise and the vibration of motor.

The present invention provides a kind of mute motor of high-precision self-balancing, the mute motor include: shell, bearing fixed frame, Shaft, dynamic balance structure, motor stator and motor rotor, wherein the shell with upper housing and lower case passes through flexibility Fixing piece is fixedly connected with motor mount, and the vibration of the motor mount is passed to for slowing down the shell；Institute Bearing fixed mount setting is stated in the shell, being provided with elastic spacing ring between the bearing fixed frame and the shell, is used In to the bearing fixed frame carry out limit and buffer shock-absorbing；The shaft is set to the bearing by spring bearing and fixes On frame；The dynamic balance structure is set in the shaft, and is contacted with the bearing fixed frame, for dynamic balancing adjustment and Slowing down vibration；And the motor stator is fixed on the upper of the bearing fixed frame, the motor rotor is centered around the motor The outside of stator, and the motor rotor is fixed in the shaft.

In a specific embodiment of the invention, which has one or more dynamic balance structures, described dynamic Balanced structure includes: flexible fastening piece and adjustment bearing, wherein is provided with the bullet in the ring of the adjustment bearing and outside ring Property fixing piece, the flexible fastening piece is for carrying out vibration damping and dynamic balance adjustment.

In a specific embodiment of the invention, the flexible fastening piece in the adjustment bearer ring connects with the shaft Touching, for transmitting the radial force of the shaft and applying elastic reaction to the shaft.

In a specific embodiment of the invention, it is solid that the flexible fastening piece outside the adjustment bearer ring contacts the bearing Frame is determined, for transmitting the radial force of the shaft and applying elastic reaction to the shaft.

In a specific embodiment of the invention, the flexible fastening piece outside the adjustment bearer ring also contacts the shell Body supports the bearing fixed frame for fixed.

In a specific embodiment of the invention, the flexible fastening piece is to have certain bullet after flexible material is either processed The elastic component of property modulus.

In a specific embodiment of the invention, the fixed lid of bearing is provided on the outside of the dynamic balance structure, for fixing The position of the spring bearing and the dynamic balance structure.

It is interference fit, the bearing between the shaft and the spring bearing in a specific embodiment of the invention It is interference fit between fixed frame and the spring bearing.

In a specific embodiment of the invention, it is additionally provided with O-ring between the bearing fixed frame and the shell, is used for The bearing fixed frame and the shell rigid contact are prevented, slows down the shaft because of vibration caused by rotating.

In a specific embodiment of the invention, the mute motor further include: driving plate and shaft oil sealing, wherein the drive Movable plate is fixed on the bearing fixed frame, is rotated for connecting motor rotor described in power drives；And the shaft The opening of the upper housing is arranged in oil sealing, for preventing the oil leakage of the enclosure interior.

According to above-mentioned specific embodiment it is found that a kind of benefit of mute motor of high-precision self-balancing provided by the invention exists In: the mute motor is more outstanding in terms of noise-and-vibration-reduction relative to existing motor, using dynamic balance structure, further adjusts Bearing holds installation error, and the stability of shaft is further increased.In addition, dynamic balance structure can accomplish energy-obsorbing and damping, in turn Noise can be further decreased, vibration when motor running is alleviated.

It is to be understood that above-mentioned general description and following specific embodiments are merely illustrative and illustrative, not The range of the invention to be advocated can be limited.

Detailed description of the invention

Following attached drawing is part of specification of the invention, depicts example embodiments of the present invention, appended attached Figure is used to illustrate the principle of the present invention together with the description of specification.

Fig. 1 is a kind of top view of the mute motor of high-precision self-balancing provided by the invention.

Fig. 2 is a kind of C-C cross-sectional view of the mute motor of high-precision self-balancing provided by the invention.

Description of symbols:

1- shell, 2- bearing fixed frame, 3- shaft, 4- dynamic balance structure, 5- motor stator, 6- motor rotor, 7- are flexible Fixing piece, 8- motor mount, 9- elastic spacing ring, 10- spring bearing, 11- upper housing, 12- lower case, 13- flexible fastening Part, 14- adjustment bearing, 15- bearing fixed lid, 16-O type circle, 17- driving plate, 18- shaft oil sealing, 19- stop collar.

Specific embodiment

The existing various exemplary embodiment that the present invention will be described in detail, the detailed description are not considered as to limit of the invention System, and it is understood as the more detailed description to certain aspects of the invention, characteristic and embodiment.

Without departing substantially from the scope or spirit of the invention, the specific embodiment of description of the invention can be done more Kind improvements and changes, this will be apparent to those skilled in the art.Other realities obtained by specification of the invention Applying mode for technical personnel is apparent obtain.Present specification and embodiment are merely exemplary.

The cross-sectional view being illustrated in figure 2 at a kind of C-C of mute motor of high-precision self-balancing provided by the invention.The attached drawing Shown in embodiment, which includes: shell 1, bearing fixed frame 2, shaft 3, dynamic balance structure 4,5 and of motor stator Motor rotor 6.Wherein, shell 1 has upper housing 11 and lower case 12, is bolted between upper housing 11 and lower case 12 Connection.Shell 1 is fixedly connected with motor mount 8 by using flexible attachment 7, and flexible attachment 7 is for slowing down shell Body 1 passes to the vibration of motor mount 8, and the decrease of vibration is conducive to the reduction of noise.Bearing fixed frame 2 is set to shell 1 It is interior, elastic spacing ring 9 is provided between bearing fixed frame 2 and shell 1, for bearing fixed frame 2 to be limited and buffered Vibration damping.The distinctive elastic characteristic of elastic spacing ring 9 can greatly reduce the vibration that bearing fixed frame 2 passes to shell 1, into one Step reduces noise.Shaft 3 is set on bearing fixed frame 2 by spring bearing 10.Wherein, between shaft 3 and spring bearing 10 It is interference fit between bearing fixed frame 2 and spring bearing 10 for interference fit.It is interference fitted the running accuracy of the shaft 3 made It is more high, reduce radially wobbling for shaft 3.Dynamic balance structure 4 is set in shaft 3, dynamic balance structure 4 and is fixed with bearing Frame 2 contacts, and is used for dynamic balancing adjustment and slowing down vibration.In the present embodiment, spring bearing 8 can be one, or more It is a.But it is constrained to the production precision and installation accuracy of spring bearing 8, during the production of spring bearing 8 and installation It will appear certain error.8 inner ring and outer rings of spring bearing can not reach absolute circularity and ball in process of production Absolute spherical shape can not be reached, such spring bearing 8 can generate shaking during use, with using prolonging for time Long, the shaking of spring bearing 8 can increase with the severity of abrasion, and service life can also be reduced.The present embodiment it is specific In implementation, dynamic balance structure 4 adjusts the rotational stabilization of shaft 3, and then the running accuracy of spring bearing 8 is adjusted by shaft 3, Rotary gap between the inner and outer ring of spring bearing 8 is more uniform, so that the rotation of spring bearing 8 is more steady, slow down The rate of wear of spring bearing 8 inner and outer ring and ball extends the service life of spring bearing 8, and then extends the service life of motor.Separately Outside, dynamic balance structure 4 adjusts the rotational stabilization of shaft 3, and then reduces the radial of shaft 3 and shake range, and keep support The smooth running of bearing 8.The shaking of motor can be substantially reduced in this way, while reducing noise.It is solid that motor stator 5 is fixed on bearing Determine the upper of frame 2, motor rotor 6 is centered around the outside of motor stator 5, and motor rotor 6 is fixed in shaft 3.

In the specific embodiment of the present embodiment, according to needs of production, which has one or more dynamic Balanced structure 4.In addition, dynamic balance structure 4 includes: flexible fastening piece 13 and adjustment bearing 14.Wherein, in the ring for adjusting bearing 14 It is provided with flexible fastening piece 13 outside with ring, flexible fastening piece 13 is for carrying out vibration damping and dynamic balance adjustment.Adjust bearing 14 Flexible fastening piece 13 in ring is contacted with shaft 3, for transmitting the radial force of shaft 3 and applying elastic reaction to shaft 3.Bullet Property the elastic reaction that shaft 3 is applied of fixing piece 13 be flexible force, the running accuracy of adjustable shaft 3, the fortune of the shaft 3 made Turn more steady.The 13 contact bearing fixed frame 2 of flexible fastening piece outside 14 ring of bearing is adjusted, for transmitting the radial direction of shaft 3 Power and to shaft 3 apply elastic reaction.It is to slow down shaft 3 and pass to that flexible fastening piece 13 is connect with bearing fixed frame 2 The vibration of bearing fixed frame 2 avoids the rigid contact of shaft 3 Yu bearing fixed frame 2, slowing down vibration and reduction noise.Adjustment The flexible fastening piece 13 being arranged in the ring of bearing 14 and outside ring can the active force to shaft 3 effectively buffer and instantaneously generation is precisely Opposition, the opposition adjust shaft 3 so that the rotation of shaft 3 is more stable.And then it is adjusted by shaft 3 The running accuracy of spring bearing 8, the rotary gap between the inner and outer ring of spring bearing 8 is more uniform, so that spring bearing 8 What is rotated is more steady, slows down the rate of wear of spring bearing 8 inner and outer ring and ball, extends the service life of spring bearing 8, Jin Eryan The service life of long motor.Dynamic balance structure 4 is arranged between shaft 3 and bearing fixed frame 2 can adjust the spin stabilization of shaft 3 Property, while can also greatly slowing down vibration, and then reduction noise.Flexible fastening piece 13 outside adjustment 14 ring of bearing also contacts shell 1, such flexible fastening piece 13 can be used for fixed spring bearing fixed frame 2, and play the effect of a part of slowing down vibration transmitting Fruit.In the present embodiment, flexible fastening piece 13 is the elastic component with certain elasticity modulus after flexible material is either processed.This reality It applies in example, which can be metal material, or other flexible materials.After flexible material is either processed Elastic component with certain elasticity modulus have certain elasticity, and after stress can moment feedback elastic reaction, to shaft 3 Carry out stability adjusting.The benefit that flexible fastening piece 13 is arranged is, convenient for carrying out dynamic balancing adjustment in the design of motor production, This is than directly time saving and energy saving to the progress of spring bearing 10 dynamic balancing adjustment, and adjustment effect is more significant, and horse greatly reduces The cost of manufacture reached.

The outside of dynamic balance structure 4 is provided with the fixed lid 15 of bearing, for fixing spring bearing 10 and dynamic balance structure 4 Position.Shown in Fig. 2, in the present embodiment, the side of the dynamic balance structure 4 on 3 top of shaft carries out position by stop collar 19 and consolidates Fixed, the other side of the dynamic balance structure 4 is contacted with spring bearing 10, and then realizes limit.The dynamic balance structure of 3 lower part of shaft 4 side carries out position by the fixed lid 15 of bearing and fixes, and the other side of the dynamic balance structure 4 is contacted with spring bearing 10, And then realize limit.In the present embodiment, the fixed lid 15 of bearing is fixed by screws on bearing fixed frame 2.

In the specific embodiment of the present embodiment, O-ring 16, O-ring are additionally provided between bearing fixed frame 2 and shell 1 16 be elastic material, can prevent bearing fixed frame 2 and 1 rigid contact of shell, slows down shaft 3 because of vibration caused by rotating.

In the specific embodiment of the present embodiment, the mute motor further include: driving plate 17 and shaft oil sealing 18.Wherein, Driving plate 17 is fixed on bearing fixed frame 2, and driving plate 17 is rotated for connecting power drives motor rotor 6.Shaft oil The opening of upper housing 11 is arranged in envelope 18, and shaft oil sealing 18 is used to prevent the oil leakage inside shell 1.

As shown in Fig. 2, motor is fixed in motor mount 8.Wherein, the shell 1 of the motor passes through with motor mount 8 It is fixedly connected using flexible attachment 7, i.e., the lower case 12 Yu motor mount 8 of shell 1 are by using flexible attachment 7 It is flexibly connected.Flexible attachment 7 is arranged in the aperture of lower case 12 and motor mount 8, as shown in Figure 1, shell 1 On aperture and the aperture in motor mount 8 it is concentric up and down.Flexible attachment 7 passes to motor for slowing down shell 1 and fixes The vibration of frame 8, the decrease of vibration are conducive to the reduction of noise.

The foregoing is merely the schematical specific embodiments of the present invention, before not departing from conceptions and principles of the invention It puts, the equivalent changes and modifications that any those skilled in the art is made should belong to the scope of protection of the invention.