CN205081595U - Rigid joint structure of rotor core and rotation axis and utilize motor of this structure - Google Patents

Abstract

The utility model relates to a rigid joint structure of rotor core and rotation axis and utilize motor of this structure. According to the utility model discloses a rotor core of motor and the rigid joint structure of rotation axis, rotor core is in order to surround the mode of rotation axis combines, through the fixed component rigid joint in the rotation axis, the fixed component is through inserting the outer peripheral face of rotation axis with between rotor core's the inner peripheral surface, will the rotor core rigid joint is arrived the rotation axis. The utility model discloses fix rotor core through the fixed component easily and assemble the rotation axis, can improve equipment nature and production, can realize the miniaturization of the whole size of motor.

Description

The fixture conjunction structure of rotor core and rotating shaft and utilize the motor of this structure

Technical field

The utility model relates to the rotor core of motor and the fixture conjunction structure of rotating shaft and utilizes the motor of this structure, particularly relates to a kind of motor easily rotor core forming motor being fixedly combined to the rotor core of the motor of rotating shaft and the fixture conjunction structure of rotating shaft and utilizing this structure.

Background technology

Fig. 1 is the structure chart of existing motor.

Existing general motor as shown in Figure 1, comprises shell 1, rotating shaft 2, rotor core 3, stator core 4 and fixed component 5 etc.

The inside of described shell 1 is formed with cavity.

Described rotating shaft 2 is arranged to the both sides of the through described shell 1 in its two ends.

Described rotor core 3 is incorporated into the inside of described shell 1 in the mode of surrounding described rotating shaft 2, jointly rotates with described rotating shaft 2.

Described stator core 4 secure bond in described shell 1 inner peripheral surface and be arranged at the gabarit of described rotor core 3.

Described rotor core 3 is fixedly combined to described rotating shaft 2 by described fixed component 5.

Described rotor core 3 is formed by multiple electrical steel lamination.

Now, for preventing described rotor core 3 from coming off from described rotating shaft 2, adopt the integrated structure of fixed component 5 described in hot jacket, to guarantee the tightness between described fixed component 5 and described rotating shaft 2.

Further, described fixed component 5 is made up of lock construction element 5a, rotor plate 5b and retainer 5c.

In addition, for preventing each component of described motor from coming off because of inside and outside vibration and impact, excessive tightness is needed.

For this reason, after needing by high-temperature heating, described rotor plate 5b and retainer 5c to be expanded, carry out hot jacket, therefore there is the problems such as assembleability and productivity are low, fixed component 5 quantity is many.

[prior art document]

[patent documentation]

No. 10-2013-0021088th, (patent documentation 1) KR published patent

Utility model content

Technical problem

For solving the problem, the purpose of this utility model be to provide a kind of can reduce rotor core is fixedly combined to rotating shaft fixed component quantity, easily carry out assembling, the rotor core of the motor of motor size and the fixture conjunction structure of rotating shaft can be reduced and utilize the motor of this structure.

Technical scheme

For reaching above-mentioned purpose, the rotor core of motor of the present utility model and the fixture conjunction structure of rotating shaft form the rotor core of motor and the fixture conjunction structure of rotating shaft, described rotor core combines in the mode of surrounding described rotating shaft, by fixed component secure bond in described rotating shaft, described rotor core, by being inserted between the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core, is fixedly combined to described rotating shaft by described fixed component.

Further, for reaching above-mentioned purpose, motor of the present utility model comprises: shell; Rotating shaft, its through described shell; Rotor core, it is incorporated into the inside of described shell in the mode of surrounding described rotating shaft, jointly rotates with described rotating shaft; Stator core, its secure bond in described shell inner peripheral surface and be arranged at the gabarit of described rotor core; And fixed component, described rotor core is fixedly combined to described rotating shaft by it, and wherein, described rotor core, by being inserted between the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core, is fixedly combined to described rotating shaft by described fixed component.

Technique effect

The above-mentioned rotor core of motor of the present utility model and the fixture conjunction structure of rotating shaft and utilize the motor of this structure to have following technique effect:

Rotor core is fixedly combined to rotating shaft by being inserted between the outer peripheral face of rotating shaft and the inner peripheral surface of rotor core by fixed component, therefore easily by fixed component, rotor core is fixedly assembled into rotating shaft.

And fixed component quantity can be reduced, therefore, it is possible to improve assembleability and productivity, the miniaturization of whole motor size can be realized by the length shortening rotating shaft.

Accompanying drawing explanation

Fig. 1 is the structure chart of existing motor;

Fig. 2 is the structure chart of the motor according to the utility model embodiment;

Fig. 3 is the stereogram of rotating shaft according to the utility model embodiment and rotor core;

Fig. 4 is the exploded perspective view of rotating shaft according to the utility model embodiment and rotor core;

Fig. 5 a is the profile of the rotating shaft according to the utility model embodiment;

Fig. 5 b is the profile rotating shaft of display according to the utility model embodiment being arranged the state of rotor core;

Fig. 5 c is the profile of display according to the state of fixed rotor iron core on the rotating shaft of the utility model embodiment;

Fig. 6 a be display prior art rotating shaft on the profile of state of fixed rotor core;

Fig. 6 b is the profile of display according to the state of fixed rotor iron core on the rotating shaft of the utility model embodiment.

Description of reference numerals

10: shell 20: rotating shaft

21: the second combined holes 30: rotor core

31: the first combined holes 40: stator core

50: fixed component 51: insertion section

52: head

Embodiment

Fig. 2 is the structure chart of the motor according to the utility model embodiment, Fig. 3 is the stereogram of rotating shaft according to the utility model embodiment and rotor core, Fig. 4 is the exploded perspective view of rotating shaft according to the utility model embodiment and rotor core, and Fig. 5 a, Fig. 5 b, Fig. 5 c are the sectional structure chart of the assembling process of motor according to the utility model embodiment.

As shown in Fig. 2 to Fig. 5 a, Fig. 5 b, Fig. 5 c, motor of the present utility model comprises shell 10, rotating shaft 20, rotor core 30, stator core 40 and fixed component 50.

The inside of described shell 10 is formed with cavity.

The two ends of the through described shell 10 of described rotating shaft 20.

Described rotor core 30 is formed by multiple electrical steel lamination.

Described rotor core 30 is incorporated into the inside of described shell 10 in the mode of surrounding described rotating shaft 20, jointly rotates with described rotating shaft 20.

Rotor core 30 described in the present embodiment is annular, and described rotating shaft 20 is through is arranged at its inside.

Described stator core 40 secure bond in described shell 10 inner peripheral surface and be arranged at the gabarit of described rotor core 30.

Described rotor core 30 is fixedly combined to described rotating shaft 20 by described fixed component 50.

Specifically, described rotor core 30, by between the outer peripheral face that is inserted into described rotating shaft 20 and the inner peripheral surface of described rotor core 30, is fixedly combined to described rotating shaft 20 by described fixed component 50.

In the present embodiment, described fixed component 50 is made up of insertion section 51 and head 52.

Described insertion section 51 is shaft-like, between the outer peripheral face being inserted into described rotating shaft 20 and the inner peripheral surface of described rotor core 30.

Described head 52 is formed at one end of described insertion section 51, and contacting with the one side of described rotor core 30 and the one side of rotating shaft 20 supports.

Described rotor core 30, by between the outer peripheral face forcing to be inserted into described rotating shaft 20 and the inner peripheral surface of described rotor core 30, is fixedly combined to described rotating shaft 20 by the described fixed component 50 be made up of described insertion section 51 and head 52.

The outer peripheral face of described insertion section 51 can be even shape, but preferably as the present embodiment outer peripheral face be formed with screw thread.

Therefore, described fixed component 50 is by between the outer peripheral face that is rotatably inserted into described rotating shaft 20 and the inner peripheral surface of described rotor core 30.

Now, the outer peripheral face of described rotating shaft 20 and the inside of described rotor core 30 do not have screw thread at first, described fixed component 50 utilizes the screw thread being formed at the outer peripheral face of described insertion section 51, generates new screw thread to assemble by rotation mode at the outer peripheral face of described rotating shaft 20 and the inside of described rotor core 30.

As mentioned above, make described rotating shaft 20 and rotor core 30 permanent deformation form screw thread by described fixed component 50 and combine, improve the adhesion between described fixed component 50 and described rotating shaft 20 and rotor core 30 by generation predetermined stress.

Further, be used for preventing described rotor core 30 from occurring to slide and depart from direction of principal axis in direction of rotation with rotating shaft 20 in conjunction with the stress occurred after described fixed component 50.

Further, the effect preventing described fixed component 50 from loosening (outwarding winding) when being subject to inside and outside vibrations, impact is played in conjunction with the stress occurred after described fixed component 50.

Described fixed component 50 can be inserted into the space between the outer peripheral face of described rotating shaft 20 and the inner peripheral surface of described rotor core 30, but the first combined hole 31 being preferably inserted into the inner peripheral surface being formed at described rotor core 30 as the present embodiment and the second combined hole 21 of outer peripheral face being formed at described rotating shaft 20.

Described first combined hole 31 is recessed to form from the inner peripheral surface of the described rotor core 30 of annular to outer peripheral face direction.

Described second combined hole 21 caves in from the outer peripheral face of described rotating shaft 20 to central axis direction and forms.

Described in the present embodiment, the first combined hole 31 and the second combined hole 21 respectively have four, with 90 degree of gap-formings.

Described insertion section 51 is inserted into described first combined hole 31 and the second combined hole 21 being arranged to be interconnected.

Now, the size sum in the space of described first combined hole 31 and the second combined hole 21 is less than the diameter of described insertion section 51, and therefore described insertion section 51 forces to be inserted into described first combined hole 31 and the second combined hole 21.

When described insertion section 51 forces to insert, described first combined hole 31 and the second combined hole 21 newly form screw thread (tap) respectively, thus described fixed component 50 brute force is fixedly combined to described rotating shaft 20 and rotor core 30.

Preferably described first combined hole 31 and the second combined hole 21 are respectively semicircle.

But also can be different from the present embodiment, only form described first combined hole 31, make described insertion section 51 be inserted into described first combined hole 31.

Now, the size of described first combined hole 31 is less than the diameter of described insertion section 51, and described insertion section 51 forces to be inserted into described first combined hole 31.

Further, only can form described second combined hole 21, make described insertion section 51 be inserted into described second combined hole 21.

Now, the size of described second combined hole 21 is less than the diameter of described insertion section 51, and described insertion section 51 forces to be inserted into described second combined hole 21.

Below describe assembling process of the present utility model as constructed as above in detail.

As shown in Figure 5 b, described rotating shaft 20 is inserted into described rotor core 30.

And as shown in Figure 5 c, insert described fixed component 50 to described first combined hole 31 and the second combined hole 21.

Now, the diameter of described fixed component 50 is greater than described first combined hole 31 and the second combined hole 21 sum, therefore the first combined hole described in when described fixed component 50 rotates and the second combined hole 21 form screw thread by described screw thread, and generate predetermined in conjunction with stress simultaneously.

Fig. 6 a is existing motor, and Fig. 6 b is the motor according to the utility model embodiment.

As shown in Figure 6 a, existing motor should have lock construction element 5a, rotor plate 5b for fixed rotor iron core 3 and retainer 5c, and because number of components is many, the corresponding increase of length of rotating shaft 2, therefore the overall dimensions of motor is large.

On the contrary, the utility model as shown in Figure 6 b, only needs the fixed component 50 described rotor core 30 being fixed to described rotating shaft 20, therefore, it is possible to reduce number of components, shortens the length of rotating shaft 20, therefore, it is possible to realize miniaturization and the lightweight of motor.

The rotor core of motor of the present utility model and the fixture conjunction structure of rotating shaft and utilize the motor of this structure to be not limited to above-described embodiment, can do various deformation within the scope of technological thought of the present utility model.

Claims (9)

1. the rotor core of motor and a fixture conjunction structure for rotating shaft, is form the rotor core of motor and the fixture conjunction structure of rotating shaft, it is characterized in that:

Described rotor core combines in the mode of surrounding described rotating shaft, by fixed component secure bond in described rotating shaft, described rotor core, by being inserted between the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core, is fixedly combined to described rotating shaft by described fixed component.

2. the rotor core of motor according to claim 1 and the fixture conjunction structure of rotating shaft, is characterized in that:

Described rotor core is annular, and described rotating shaft is through is arranged at its inside,

Described fixed component is by the insertion section be inserted between the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core, and be formed at one end of described insertion section and the head carrying out supporting that contacts with the one side of described rotor core and the one side of rotating shaft is formed

Described rotor core, by forcing to be inserted between the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core, is fixedly combined to described rotating shaft by described fixed component.

3. the rotor core of motor according to claim 2 and the fixture conjunction structure of rotating shaft, is characterized in that:

Described fixed component generates screw thread at the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core in a rotative pattern, and is incorporated into the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core.

4. the rotor core of motor according to claim 2 and the fixture conjunction structure of rotating shaft, is characterized in that:

The inner peripheral surface of the described rotor core of annular has the first combined hole be recessed to form to outer peripheral face direction, and described insertion section is inserted into described first combined hole, and the size of described first combined hole is less than the diameter of described insertion section.

5. the rotor core of motor according to claim 2 and the fixture conjunction structure of rotating shaft, is characterized in that:

The outer peripheral face of described rotating shaft has the second combined hole be recessed to form to central axis direction, and described insertion section is inserted into described second combined hole, and the size of described second combined hole is less than the diameter of described insertion section.

6. the rotor core of motor according to claim 2 and the fixture conjunction structure of rotating shaft, is characterized in that:

The inner peripheral surface of the described rotor core of annular has the first combined hole be recessed to form to outer peripheral face direction, the outer peripheral face of described rotating shaft has the second combined hole be recessed to form to central axis direction, described insertion section is inserted into described first combined hole and the second combined hole being arranged to be interconnected, and the size sum of described first combined hole and the second combined hole is less than the diameter of described insertion section.

7. a motor, is characterized in that, comprising:

Shell;

Rotating shaft, its through described shell;

Rotor core, it is incorporated into the inside of described shell in the mode of surrounding described rotating shaft, jointly rotates with described rotating shaft;

Stator core, its secure bond in described shell inner peripheral surface and be arranged at the gabarit of described rotor core; And

Fixed component, described rotor core is fixedly combined to described rotating shaft by it,

Wherein, described rotor core, by being inserted between the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core, is fixedly combined to described rotating shaft by described fixed component.

8. motor according to claim 7, is characterized in that:

Described rotor core is annular, and described rotating shaft is through is arranged at its inside,

Described fixed component is by the insertion section be inserted between the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core, and be formed at one end of described insertion section and the head carrying out supporting that contacts with the one side of described rotor core and the one side of rotating shaft is formed

Described rotor core, by forcing to be inserted between the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core, is fixedly combined to described rotating shaft by described fixed component.

9. motor according to claim 8, is characterized in that:

Described fixed component generates screw thread at the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core in a rotative pattern, and is incorporated into the outer peripheral face of described rotating shaft and the inner peripheral surface of described rotor core.