CN207782516U - A kind of damping rotor - Google Patents

Abstract

The utility model provides a kind of damping rotor, including：Rotor core and motor shaft, at least one recess portion is offered on the motor shaft, being covered on the motor shaft surely has insulation elastic sleeve, at least one protrusion is offered on the inner wall of the insulation elastic sleeve, one corresponding recess portion of protrusion, the protrusion is fastened in the recess portion, and the protrusion is suitable for axial, radially and circumferentially the fixed motor shaft, the rotor core set are scheduled on the insulation elastic sleeve.Such structure can preferably protect next, by male cooperation recess portion, play good anti-rotation effect.

Description

A kind of damping rotor

Technical field

The utility model is related to cage rotor motors, and in particular to a kind of damping rotor.

Background technology

Cage rotor motor in the prior art, because needing to cover the bearing that dead axle holds, and is typically chosen on motor shaft For ball bearing.

But because the free end in motor shaft is provided with circuit board, circuit board will produce electric current, to generate magnetic , and motor shaft itself causes the electrostatic induction voltage in shaft to increase, to cause to roll because being in direct contact with rotor core Moving above and below ball in pearl bearing, and damage.

Utility model content

The technical problems to be solved in the utility model is：In order to solve the magnetic field and electricity that shaft current generates in the prior art The problem of magnetic field that road plate generates damages bearing.The utility model provides a kind of damping rotor to solve above-mentioned ask Topic.

Technical solution adopted by the utility model to solve its technical problems is：A kind of damping rotor, including：Rotor core And motor shaft, at least one recess portion is offered on the motor shaft, and being covered on the motor shaft surely has insulation elastic sleeve, the insulation At least one protrusion, a corresponding recess portion of protrusion are offered on the inner wall of elastic sleeve, the protrusion is fastened on In the recess portion, the protrusion is suitable for axial, radially and circumferentially the fixed motor shaft, the rotor core set are scheduled on described exhausted On edge elastic sleeve.

Preferably, further including metallic sheath, the metallic sheath set is scheduled on the insulation elastic sleeve, the metallic sheath inner sleeve In the rotor core.

Preferably, the lower ending opening of the metallic sheath has been wholely set flange, the upward inclination of the flange resists described The bottom surface of insulation elastic sleeve.

Preferably, the arched shape in the cross section of the recess portion, the arched shape in cross section of the protrusion.

Preferably, the curved wall of the protrusion is engaged with the side wall of the motor shaft, the upper bottom surface of the protrusion It is bonded with the upper and lower end face of the recess portion, the top surface and the bottom surface of the recess portion of the protrusion are bonded to each other.

Preferably, the number of the protrusion is two, protrusion any point on the motor shaft axis 180 ° of rotation can be Chong Die with protrusion described in another.

Preferably, the material of the insulation elastic sleeve is rubber.

Preferably, the upper end opening of the metallic sheath be extended with successively first resist ring, pipe sleeve and second resists ring, institute It states the inner ring that first resists ring to connect with the lower end of the pipe sleeve, the outer ring that the upper end of the pipe sleeve resists ring with described second connects It connects, the inner ring that the motor shaft resists ring from described second stretches out.

The utility model has the beneficial effects that such damping rotor passes through the insulating effect for the elastic sleeve that insulate, partition first Rotor core and motor shaft, to reduce the raising of electrostatic induction voltage；Secondly, the male cooperation by insulating on elastic sleeve Recess portion on motor shaft, it is circumferentially fixed between realization insulation elastic sleeve and motor shaft, it avoids and the case where relative rotation occurs； And, because having elastic force, and the effect of good vibration and noise reducing can be played again.

Description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is a kind of structural schematic diagram of the optimum embodiment of damping rotor of the utility model.

Fig. 2 is the structural schematic diagram of the optimum embodiment of the utility model motor shaft.

Fig. 3 is the structural schematic diagram of the optimum embodiment of the utility model insulation elastic sleeve.

Fig. 4 is the structural schematic diagram of the optimum embodiment of the utility model metallic sheath.

Fig. 5 is the structural schematic diagram at another visual angle of the utility model metallic sheath.

1, rotor core in figure, 2, motor shaft, 3, insulation elastic sleeve, 4, metallic sheath, 2-1, recess portion, 3-1, protrusion, 4-1, First resists ring, 4-2, pipe sleeve, and 4-3, second resist ring, 4-4, flange.

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.On the contrary, the embodiments of the present invention include falling into owning within the scope of the spirit and intension of attached claims Variation, modification and equivalent.

In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " axis To ", " radial direction ", the orientation or positional relationship of the instructions such as " circumferential direction " be to be based on the orientation or positional relationship shown in the drawings, be only for Convenient for the description present invention and simplify description, specific side must be had by not indicating or implying the indicated device or element Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.

In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important Property.In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine Tool connects, and can also be electrical connection；It can be directly connected, it can also be indirectly connected through an intermediary.For this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.In addition, in this reality With in novel description, unless otherwise indicated, the meaning of " plurality " is two or more.

Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion Point, and the range of preferred embodiments of the present invention includes other realization, wherein can not press shown or discuss Sequence, include according to involved function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be by this The embodiment person of ordinary skill in the field of utility model is understood.

As shown in Fig. 1 ~ 5, the utility model provides a kind of damping rotor, including：Rotor core 1 and motor shaft 2, motor At least one recess portion 2-1 is offered on axis 2, being covered surely on motor shaft 2 has insulation elastic sleeve 3, is opened up on the inner wall for the elastic sleeve 3 that insulate There is at least one protrusion 3-1, a protrusion 3-1 corresponds to a recess portion 2-1, and raised 3-1 is fastened in recess portion 2-1, and raised 3-1 is suitable In axial, radially and circumferentially fixed motor shaft 2,1 set of rotor core are scheduled on insulation elastic sleeve 3.Such damping rotor, first, By the insulating effect for the elastic sleeve 3 that insulate, partition rotor core 1 and motor shaft 2, to reduce the liter of electrostatic induction voltage It is high；Secondly, the recess portion 2-1 on motor shaft 2 is coordinated by the raised 3-1 to insulate on elastic sleeve 3, realizes insulation elastic sleeve 3 and electricity It is circumferentially fixed between arbor 2, it avoids and the case where relative rotation occurs；And, because having elastic force, and it can play good again Damping noise reduction effect.

Such damping rotor further includes metallic sheath 4, and 4 sets of metallic sheath is scheduled on insulation elastic sleeve 3, is sleeved on and turns in metallic sheath 4 In sub- iron core 1.By the way that metallic sheath 4 is arranged, because insulation elastic sleeve 3 is directly fixed to each other with rotor core 1, can cause whole strong It spends low, is not easy motor and normally works.

The upper end opening of metallic sheath 4 is extended with first and resists ring 4-1, pipe sleeve 4-2 and second successively resists ring 4-3, and first The inner ring for resisting ring 4-1 is connect with the lower end of pipe sleeve 4-2, and the outer ring that the upper end of pipe sleeve 4-2 resists ring 4-3 with second is connect, electricity The inner ring that arbor 2 resists ring 4-3 from second stretches out.The lower ending opening of metallic sheath 4 has been wholely set flange 4-4, and flange 4-4 is resisted The bottom surface of insulation elastic sleeve 3.Ring 4-1 is resisted by setting first, pipe sleeve 4-2, second resists ring 4-3 and flange 4-4, well Covered effect is played for insulation elastic sleeve 3, so that it is preferably fixed with metallic sheath 4, becomes an entirety, to Strengthen intensity well.

When installation, flange 4-4 is initially to be mutually parallel with the side wall of metallic sheath 4, and when that will insulate, elastic sleeve 3 is filled in After entering the fixation of metallic sheath 4, flange 4-4 folds are retell, so that it is close to the bottom surface of insulation elastic sleeve 3, to make insulation elastic force Set 3 is fixed well in metallic sheath 4.

The arched shape in cross section of recess portion 2-1, the arched shape in cross section of raised 3-1.

The upper and lower end face of raised 3-1 is bonded with the upper and lower end face of recess portion 2-1, the bottom surface of the top surface and recess portion 2-1 of raised 3-1 It is bonded to each other.Upper and lower end face referred to is two end faces up and down of arched shape, and the top surface of raised 3-1 is exactly one flat The bottom surface in face, recess portion 2-1 refers to another plane.

The number of raised 3-1 is two, and 180 ° of any point rotation can be on 2 axis of motor shaft by a protrusion 3-1 The 3-1 overlappings of another protrusion.Enable its card to set power to be uniformly distributed.

Pipe sleeve 4-2 and metallic sheath 4 are coaxial, and it is vertical that pipe sleeve 4-2 with first resists ring 4-1.

First resists ring 4-1 and second, and to resist ring 4-3 parallel to each other.

The material of insulation elastic sleeve 3 is rubber or plastics non-conductive and with damping effect.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of the term It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be It can be combined in any suitable manner in any one or more embodiments or example.

It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real It is not limited to the contents of the specification with novel technical scope, it is necessary to which its technology is determined according to right Property range.

Claims (8)

1. a kind of damping rotor, including：Rotor core and motor shaft, it is characterised in that：At least one is offered on the motor shaft A recess portion, covering surely on the motor shaft has insulation elastic sleeve, and at least one protrusion is offered on the inner wall of the insulation elastic sleeve, One corresponding recess portion of protrusion, the protrusion are fastened in the recess portion, the protrusion be suitable for it is axial, radial and The circumferentially fixed motor shaft, the rotor core set are scheduled on the insulation elastic sleeve.

2. damping rotor as described in claim 1, it is characterised in that：Further include metallic sheath, the metallic sheath set is scheduled on described It insulate on elastic sleeve, is sleeved in the metallic sheath in the rotor core.

3. damping rotor as claimed in claim 2, it is characterised in that：The lower ending opening of the metallic sheath, which has been wholely set, to be turned over Side, the flange tilt the bottom surface for resisting the insulation elastic sleeve upwards.

4. damping rotor as described in claim 1, it is characterised in that：The arched shape in cross section of the recess portion, the protrusion The arched shape in cross section.

5. damping rotor as claimed in claim 4, it is characterised in that：The upper and lower end face of the protrusion is upper and lower with the recess portion End face is bonded, and the top surface and the bottom surface of the recess portion of the protrusion are bonded to each other.

6. damping rotor as described in claim 1, it is characterised in that：The number of the protrusion is two, a protrusion 180 ° of any point rotation can be Chong Die with protrusion described in another on the motor shaft axis.

7. damping rotor as described in claim 1, it is characterised in that：The material of the insulation elastic sleeve is rubber.

8. damping rotor as claimed in claim 2, it is characterised in that：The upper end opening of the metallic sheath is extended with first successively Resist ring, pipe sleeve and second resists ring, the described first inner ring for resisting ring is connect with the lower end of the pipe sleeve, the pipe sleeve it is upper The outer ring for resisting ring with described second is held to connect, the inner ring that the motor shaft resists ring from described second stretches out.