CN208316446U

CN208316446U - Motor rotor structure

Info

Publication number: CN208316446U
Application number: CN201821070595.8U
Authority: CN
Inventors: 许金鑫; 肖胜宇; 黄海良; 邱东霖; 王庆凯; 孙超
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Priority date: 2018-07-06
Filing date: 2018-07-06
Publication date: 2019-01-01
Anticipated expiration: 2028-07-06

Abstract

The utility model relates to the technical field of electric machines, especially, relate to an electric motor rotor structure. This kind of electric motor rotor structure, including iron core, rotor subassembly, the rotor subassembly is including assembling pivot and the bearing of connection, the bearing includes outer lane, rolling element, bearing bracket, be provided with the interior channel of round bearing in the pivot, the rolling element is fixed in between outer lane and the interior channel through bearing bracket, pivot one end is provided with the key structure, the iron core be provided with key structure complex key type hole. The motor rotor structure of the utility model has the advantages that the inner groove of the bearing is arranged on the rotating shaft to replace the inner ring of the bearing, so that the rotating shaft and the bearing are integrated into a rotor assembly, thereby solving the problem of bearing damage existing in the traditional rotating shaft bearing pressing process; and the rotor subassembly passes through key structure and iron core cooperation, need not adopt interference fit again, has solved the pivot bending deformation's that exists when the pivot is impressed the iron core problem.

Description

A kind of motor rotor construction

Technical field

The utility model relates to technical field of motors, more particularly to a kind of motor rotor construction.

Background technique

Existing motor rotor component includes bearing, rotor core, armature spindle, and shaft enters iron to rotor assembly assembly method before this Core, then bearing is pressed onto shaft.

Such as application No. is the assembly method and reality of rotor and mandrel are disclosed in the patent of CN201711295278.6 The rotor shaft tooling of existing this method, belongs to rotor indentation assembling process technique field, and rotor shaft tooling includes being used for Guidance mandrel enters the guiding piece of the core axle hole of rotor and for being passed through for mandrel so that mandrel stretches out the core of rotor The cushion block of axis hole, guiding piece are equipped with for guidance that is corresponding with the core axle hole of rotor and being slidably matched with mandrel guiding Hole, the guiding piece have for the guiding piece rotor engagement portion with rotor upper end location fit, and the guide hole passes through Guiding element rotor engagement portion is connected, ensures that guide hole and motor turn by the positioning between guiding piece rotor engagement portion and rotor The concentricity of the core axle hole of son solves the problems, such as that it is inclined to be easy pressure for mandrel when mandrel is assembled with rotor.

Above-mentioned patent solves the problems, such as that it is inclined to be easy pressure for mandrel when mandrel is assembled with rotor, but process flow is multiple It is miscellaneous, and shaft and iron core are interference fit in the prior art, shaft has the risk of bending deformation in process of press in, and such as torque When excessive can cored slip risk, and shaft the problem of there is also damage of the bearing during being pressed into bearing, cause bearing Abnormal sound, the machine that need to tear open are reprocessed, and production efficiency is low.

Utility model content

To solve the above problems, the utility model provides a kind of motor rotor construction.

To achieve the above object, the technical solution of the utility model is as follows: a kind of motor rotor construction, including iron core, also Including rotor assembly, the rotor assembly includes the shaft of assembled connection and bearing, the bearing include outer ring, rolling element, axis Bracket is held, a circle bearing inner race road is provided in the shaft, the rolling element is fixed on outer ring and septal fossula by the support of bearing Between road, described shaft one end is provided with bond structure, and the iron core is provided with the bond type hole with bond structure cooperation.

Further, the bearing further includes dustproof cover, there are two the dustproof cover is set, is respectively arranged at outer ring both ends.

Further, the rolling element uses bearing ball.

Further, the bond structure cross section is slightly less than shaft circular section, makes root and the shaft intersection of bond structure Form location structure.

Further, the bond structure is cooperated with bond type hole using small―gap suture mode.

Further, the cross section of the bond structure is rectangular.

Further, the circumscribed circle diameter of the bond structure cross section is A, and the circular section diameter of the shaft is B, described The size relation of A and B are as follows:

Further, the rotor assembly includes preceding rotor assembly and rear rotor assembly, the front and back rotor assembly difference It is installed on iron core both ends.

Further, the shaft of the preceding rotor assembly extends outward to form output end.

Further, the support of bearing includes half bracket of two with rolling element cooperation, and two and half bracket riveteds are formed The support of bearing.

From the above description of the utility model, it can be seen, compared with prior art, the motor rotor construction of the utility model The inner ring for substituting bearing by the way that bearing inner race road is arranged in shaft, makes shaft and bearing integrated become rotor assembly, to solve Existing damage of the bearing problem when traditional shaft indentation bearing process of having determined；And rotor assembly is matched by bond structure and iron core It closes, does not need solve the problems, such as existing shaft bending deformation when shaft is pressed into iron core using interference fit again.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram of motor rotor construction in the utility model embodiment；

Fig. 2 is the decomposition diagram of motor rotor construction in the utility model embodiment；

Fig. 3 is the stereoscopic schematic diagram of preceding rotor assembly in the utility model embodiment；

Fig. 4 is the decomposition diagram of rear rotor assembly in the utility model embodiment；

Fig. 5 is the schematic cross-section of iron core in the utility model embodiment；

Fig. 6 is the schematic diagram of the utility model embodiment mesodesmic structure and shaft.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, to the technical solution in the utility model carry out it is clear, It is fully described by, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole implementation Example.

As shown in figs. 1 to 6, a kind of motor rotor construction, including iron core 1 further include rotor assembly 2, the rotor assembly 2 Shaft 3 and bearing 4 including assembly connection, the bearing 4 include outer ring 41, rolling element 42, the support of bearing 43, dustproof cover 44, Be provided with a circle bearing inner race road 31 in the shaft 3, the rolling element 42 by the support of bearing 43 be fixed on outer ring 41 with it is interior Between channel 31, there are two the dustproof cover 44 is set, 41 both ends of outer ring are respectively arranged at, the rolling element 42 is rolled using bearing Pearl, the support of bearing 43 include two half brackets cooperated with rolling element 42, and two and half bracket riveteds form the support of bearing.Turn Sub-component 2 realizes the effect that shaft 3 and bearing 4 are integrated, and the assemble flow cancelled shaft 3 and be pressed into bearing 4 is realized with this, into And realize 4 damage problem of bearing for avoiding generating when indentation, solve the problems, such as 4 abnormal sound of bearing；The rotor assembly 2 includes preceding rotor Component 21 and rear rotor assembly 22, the front and back rotor assembly 21,22 are respectively arranged in 1 both ends of iron core, the preceding rotor assembly 21 shaft 3 extends outward to form output end 211, and the support of bearing includes half brackets of two with rolling element cooperation, and two Half bracket riveted forms the support of bearing.

Described 3 one end of shaft is provided with bond structure 5, and the iron core 1 is provided with the bond type hole 11 cooperated with bond structure 5, institute It states bond structure 5 and is cooperated with bond type hole 11 using small―gap suture mode, shaft 3 directly can be inserted into iron core 1, component assembly is difficult Low, high production efficiency is spent, while solving shaft 3 and being pressed into problem on deformation, and can avoid shaft 3 and 1 slippage problems of iron core；It is described 5 cross section of bond structure is slightly less than 3 circular section of shaft, and the root of bond structure 5 and 3 intersection of shaft is made to form location structure 6, axial Location structure 6 plays the role of axially position when cooperating for shaft 3 and iron core 1；The cross section of shown bond structure 5 be it is rectangular, The circumscribed circle diameter of the bond structure cross section is A, and the circular section diameter of the shaft 3 is B, for convenience of the processing of bond structure 5, The size relation range of the A and B are as follows:

The motor rotor construction of the utility model is assembled by preceding rotor assembly 21, rear rotor assembly 22, iron core 1, can It is directly assembled in assemble production line, without in addition setting rotor production line, production cost can be reduced.

It is appreciated that the utility model is described by some embodiments, what those skilled in the art knew, In the case where the spirit and scope for not departing from the utility model, these features and embodiment can be carried out with various changes or equivalent Replacement.In addition, can modify under the introduction of the utility model these features and embodiment to adapt to particular situation And material is without departing from the spirit and scope of the utility model.Therefore, the utility model is not by specific reality disclosed herein The limitation of example is applied, the embodiment within the scope of fallen with claims hereof belongs to the range that the utility model is protected It is interior.

Claims

1. a kind of motor rotor construction, including iron core, it is characterised in that: further include rotor assembly, the rotor assembly includes spelling The shaft and bearing that load connects, the bearing include outer ring, rolling element, the support of bearing, and a circle bearing is provided in the shaft Interior raceway groove, the rolling element are fixed between outer ring and interior raceway groove by the support of bearing, and described shaft one end is provided with bond structure, The iron core is provided with the bond type hole with bond structure cooperation.

2. motor rotor construction according to claim 1, it is characterised in that: the bearing further includes dustproof cover, described anti- Dirt is covered with two, is respectively arranged at outer ring both ends.

3. motor rotor construction according to claim 1, it is characterised in that: the rolling element uses bearing ball.

4. motor rotor construction according to claim 1, it is characterised in that: the bond structure cross section is slightly less than shaft circle Section makes the root of bond structure and shaft intersection form location structure.

5. motor rotor construction according to claim 1, it is characterised in that: the bond structure and bond type hole use small―gap suture Mode cooperates.

6. motor rotor construction according to claim 1, it is characterised in that: the cross section of the bond structure is rectangular.

7. motor rotor construction according to claim 6, it is characterised in that: the circumscribed circle diameter of the bond structure cross section For A, the circular section diameter of the shaft is B, the size relation of the A and B are as follows:

8. motor rotor construction according to claim 1, it is characterised in that: the rotor assembly include preceding rotor assembly with Rotor assembly afterwards, the front and back rotor assembly are respectively arranged in iron core both ends.

9. motor rotor construction according to claim 8, it is characterised in that: the shaft of the preceding rotor assembly extends outwardly Form output end.

10. motor rotor construction according to claim 1, it is characterised in that: the support of bearing includes two and rolling Half bracket of body cooperation, two and half bracket riveteds form the support of bearing.