CN201656600U

CN201656600U - Medium and small-sized motor rotor

Info

Publication number: CN201656600U
Application number: CN2010202983620U
Authority: CN
Inventors: 曹群林; 金颖琦; 金振荣; 陈祖方; 田锦文
Original assignee: WUHAN HUADA NEW TYPE MOTOR CO Ltd
Current assignee: WUHAN HUADA NEW TYPE MOTOR CO Ltd
Priority date: 2010-08-20
Filing date: 2010-08-20
Publication date: 2010-11-24
Anticipated expiration: 2020-08-20

Abstract

A medium and small-sized motor rotor comprises a rotating shaft and a rotor iron core, wherein the rotor iron core is sleeved on the rotating shaft, a No. 1 iron core retaining ring and a No. 2 iron core retaining ring which are sleeved on the rotating shaft are respectively arranged at the two ends of the rotor iron core, are all of an inwards concave structure, and comprise a retaining ring bottom side and a retaining ring side which are vertical to each other, one side of the retaining ring bottom side is matched with the rotor iron core, the other side thereof is matched with at least one spring retaining ring sleeved on the rotating shaft, the spring retaining ring is matched with the rotating shaft by a clamping trough of the retaining ring, and the spring retaining ring is arranged in the inwards concave parts of the No. 1 and the No. 2 iron core retaining rings. The utility model not only has better fixation effect and simpler structure, but also has lower production cost and easy assembling.

Description

A kind of rotor of middle and small motor

Technical field

The utility model relates to a kind of rotor, relates in particular to a kind of rotor of middle and small motor, specifically is applicable to silicon steel sheet the fixing in rotating shaft of middle and small motor rotor.

Background technology

The rotor of middle and small motor generally is made of rotating shaft and two critical pieces of rotor core, and rotor core is by after the moulding of permeability magnetic material silicon plate stamping-out, it is punching, be overrided to form, this punching group, promptly rotor core must be done radial and axial fixing in rotating shaft, promptly do not allow it to have and radially rotate and endwisely slip, otherwise have a strong impact on the technical performance of motor.

The Chinese patent Granted publication number is CN201332304Y, Granted publication day is that the utility model patent on October 21st, 2009 discloses a kind of permanent magnet machine rotor, it comprises rotor core, securing member, rotating shaft, the axle ring washer, baffle plate, magnetic patch, its feature adopts keyway to cooperate between rotating shaft and rotor core and fixes, rotor magnetic pole is made up of one or more magnetic patch of arranging by the homopolarity adjacent sequential, every magnetic patch is embedded in the rotor core groove, one end of rotor core has shaft block ring to locate in rotating shaft, baffle plate is positioned at the two ends of rotor core and outside shaft block ring, securing member by the fastening rotor core of baffle plate in wherein.Though the mechanical strength of this utility model is higher, temperature rise is low, leakage field is little, its structure more complicated has not only increased production cost, and has improved assembly difficulty.

Summary of the invention

The purpose of this utility model is to overcome defective and the problem that structure is complicated, assembling is loaded down with trivial details, production cost is higher that exists in the prior art, and the rotor of the middle and small motor that a kind of structure is simple, assembling is simple and easy, production cost is lower is provided.

For realizing above purpose, technical solution of the present utility model is: a kind of rotor of middle and small motor, comprise rotating shaft and rotor core, described rotor core is sleeved in the rotating shaft, the two ends of rotor core are respectively arranged with an iron core baffle ring and No. two iron core baffle rings, an iron core baffle ring, No. two iron core baffle rings all are sleeved in the rotating shaft, and rotating shaft is provided with check ring; A described iron core baffle ring, No. two iron core baffle rings are the inner concave shape structure, load counterweight when this structure helps rotor dynamic balancing, comprise orthogonal baffle ring bottom surface and baffle ring side, and the middle part of baffle ring bottom surface is provided with the installing hole that matches with rotating shaft;

Described baffle ring bottom surface is sleeved in the rotating shaft, and the one side of baffle ring bottom surface matches with rotor core, and another side matches with check ring on being sleeved on rotating shaft, and the quantity of check ring is at least one.

The quantity of described check ring is two, and match in the baffle ring bottom surface on an iron core baffle ring that is provided with the rotor core two ends, No. two iron core baffle rings respectively.

Described check ring matches with rotating shaft by the back-up ring draw-in groove.

Described check ring is arranged in the inner fovea part of an iron core baffle ring, No. two iron core baffle rings, and the thickness of check ring is smaller or equal to the width of baffle ring side.

Described rotor core, iron core baffle ring, No. two iron core baffle rings and check ring are located in one procedure and are finished.

Compared with prior art, the beneficial effects of the utility model are:

1, owing to only adopted iron core baffle ring and check ring for fixing of rotor core in the rotor of a kind of middle and small motor of the utility model, the iron core baffle ring is arranged on the two ends of rotor core, the one side of iron core baffle ring upper baffle ring bottom surface matches with rotor core, another side matches with check ring on being sleeved on rotating shaft, not only realized fixing to rotor core, and parts are few, production cost is low, and structure is also comparatively simple.Therefore not only structure is simpler for the utility model, and production cost is low.

2, because the iron core baffle ring in the rotor of a kind of middle and small motor of the utility model is the inner concave shape structure, when helping rotor dynamic balancing, this structure loads counterweight, comprise orthogonal baffle ring bottom surface and baffle ring side, the middle part of baffle ring bottom surface is provided with the installing hole that matches with rotating shaft, this design can make more firm that the iron core baffle ring combines with rotating shaft, thereby make the iron core baffle ring more can play the effect of fixed rotor iron core, but also in the inner fovea part of iron core baffle ring, be provided with check ring, by check ring secured core baffle ring, this design has strengthened fixed effect, in addition, also rotating shaft is provided with the back-up ring draw-in groove that matches with check ring, this design has strengthened the fixed effect between check ring and rotating shaft, thereby has further strengthened the fixed effect of iron core baffle ring to rotor core.Therefore fixed effect of the present utility model is better.

3, owing to parts in the rotor of a kind of middle and small motor of the utility model are less, only need rotor core, iron core baffle ring and check ring are sleeved in the rotating shaft, and then in one procedure, finish positioning action and promptly install, guaranteed the mechanical strength of stacking factor and whole rotor, whole operation is not only assembled simple and easy, and be convenient to improve packaging efficiency, save artificial.Therefore the utility model assembling is simple and easy, and production cost is lower.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Among the figure: rotating shaft 1,3, No. two iron core baffle rings 4 of 2, numbers iron core baffle rings of rotor core, check ring 5, back-up ring draw-in groove 51, baffle ring bottom surface 6, installing hole 61, baffle ring side 7, inner fovea part 8.

Embodiment

Below in conjunction with description of drawings and embodiment the utility model is described in further detail

Referring to Fig. 1, a kind of rotor of middle and small motor, comprise rotating shaft 1 and rotor core 2, described rotor core 2 is sleeved in the rotating shaft 1, the two ends of rotor core 2 are respectively arranged with an iron core baffle ring 3 and No. two iron core baffle rings 4, iron core baffle ring 3, No. two iron core retaining 4 rings all are sleeved in the rotating shaft 1, and rotating shaft 1 is provided with check ring 5; A described iron core baffle ring 3, No. two iron core baffle rings 4 are the inner concave shape structure, comprise orthogonal baffle ring bottom surface 6 and baffle ring side 7, and the middle part of baffle ring bottom surface 6 is provided with the installing hole 61 that matches with rotating shaft 1;

Described baffle ring bottom surface 6 is sleeved in the rotating shaft 1, and the one side of baffle ring bottom surface 6 matches with rotor core 2, and another side matches with check ring 5 on being sleeved on rotating shaft 1, and the quantity of check ring 5 is at least one.

The quantity of described check ring 5 is two, matches in the baffle ring bottom surface 6 on an iron core baffle ring being provided with rotor core 2 two ends respectively 3, No. two iron core baffle rings 4.

Described check ring 5 matches with rotating shaft 1 by back-up ring draw-in groove 51.

Described check ring 5 is arranged in the inner fovea part 8 of iron core baffle ring 3, No. two iron core baffle rings 4, and the thickness of check ring 5 is smaller or equal to the width of baffle ring side 7.

Described rotor core 2, iron core baffle ring 3, No. two iron core baffle rings 4 are located in one procedure with check ring 5 and are finished.

Therefore, so the utility model not only fixed effect better, structure is simpler, and production cost is lower, the assembling is simple and easy.

Claims

1. the rotor of a middle and small motor, comprise rotating shaft (1) and rotor core (2), described rotor core (2) is sleeved in the rotating shaft (1), the two ends of rotor core (2) are respectively arranged with an iron core baffle ring (3) and No. two iron core baffle rings (4), an iron core baffle ring (3), No. two iron core retainings (4) ring all is sleeved in the rotating shaft (1), and rotating shaft (1) is provided with check ring (5), it is characterized in that: a described iron core baffle ring (3), No. two iron core baffle rings (4) are the inner concave shape structure, comprise orthogonal baffle ring bottom surface (6) and baffle ring side (7), the middle part of baffle ring bottom surface (6) is provided with the installing hole (61) that matches with rotating shaft (1);

Described baffle ring bottom surface (6) is sleeved in the rotating shaft (1), and the one side of baffle ring bottom surface (6) matches with rotor core (2), and another side matches with check ring (5) on being sleeved on rotating shaft (1), and the quantity of check ring (5) is at least one.

2. the rotor of a kind of middle and small motor according to claim 1, it is characterized in that: the quantity of described check ring (5) is two, matches with an iron core baffle ring (3) of rotor core (2) two ends setting, the baffle ring bottom surface (6) on No. two iron core baffle rings (4) respectively.

3. the rotor of a kind of middle and small motor according to claim 1 and 2, it is characterized in that: described check ring (5) matches with rotating shaft (1) by back-up ring draw-in groove (51).

4. the rotor of a kind of middle and small motor according to claim 3, it is characterized in that: described check ring (5) is arranged in the inner fovea part (8) of an iron core baffle ring (3), No. two iron core baffle rings (4), and the thickness of check ring (5) is smaller or equal to the width of baffle ring side (7).

5. the rotor of a kind of middle and small motor according to claim 3 is characterized in that: described rotor core (2), an iron core baffle ring (3), No. two iron core baffle rings (4) are located in one procedure with check ring (5) and are finished.