CN213185665U

CN213185665U - Outer rotor side brush motor

Info

Publication number: CN213185665U
Application number: CN202022496348.8U
Authority: CN
Inventors: 张以红; 严安照
Original assignee: Zhejiang Wangdefu Motor Co ltd
Current assignee: Zhejiang Wangdefu Motor Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-05-11
Anticipated expiration: 2030-11-02

Abstract

The utility model discloses an outer rotor side brush motor, which comprises a rotor and a stator, motor shaft and fixed lid, the outer wall interference fit of stator and motor shaft, the rotor is installed in the outside of motor shaft, form the air gap between the outer wall inboard of rotor and the stator annular outer wall, install the bearing between rotor and the motor shaft, fixed lid is installed in the lower extreme of rotor, install the bearing between fixed lid and the motor shaft, the limit brush is installed to the lower extreme of fixed lid, the lower extreme of fixed lid is equipped with a plurality of fixed orificess, the upper end of limit brush is twisted fixed orifices and fixed lid fixed connection through the bolt, install in the arm of force in the upper end of motor shaft, the arm of force passes through bolt and motor shaft fixed connection, the motor shaft includes non-circular structure portion, non-circular structure portion is in the upper end of motor shaft, the top of non-circular structure portion is equipped with the mounting hole, non. The utility model discloses simple structure, the assembly is firm, and the part is few, light in weight, and the maintenance cost is low.

Description

Outer rotor side brush motor

Technical Field

The utility model relates to the technical field of electric machines, especially, relate to an outer rotor limit brush motor.

Background

The road sweeper mainly realizes the road sweeping work through the continuous rotation of the main brush and the side brush at the lower end of the road sweeper, and the main brush and the side brush in the sweeper on the market at present are decelerated through a speed reducer through a motor and then driven by a gear to rotate a brush body. There are problems in that: the structure is complicated, the number of parts is excessive, the weight is increased, and the maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide an outer rotor limit brush motor, simple structure, it is firm to assemble, and the part is few, and weight reduction reduces the maintenance cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the outer rotor edge brush motor comprises a rotor, a stator, a motor shaft and a fixing cover, wherein the stator is in interference fit with the outer wall of the motor shaft, the rotor is installed on the outer side of the motor shaft, an air gap is formed between the inner side of the outer wall of the rotor and the annular outer wall of the stator, a bearing is installed between the rotor and the motor shaft, the fixing cover is installed at the lower end of the rotor, and the bearing is installed between the fixing cover and the motor shaft.

The middle of rotor downwardly extending forms first bulge loop, the rotor is still including the laminating anchor ring, the laminating anchor ring is located the inboard upper end of first bulge loop, is located the upper end the lower terminal surface of the up end laminating anchor ring of bearing is located the upper end the inboard of the first bulge loop of the outside laminating of bearing.

The middle of the fixed cover extends upwards to form a second convex ring, the fixed cover further comprises a limiting ring, the limiting ring is located at the lower end of the inner side of the second convex ring, the lower end face of the bearing located at the lower end is attached to the upper end face of the limiting ring, and the outer side of the bearing located at the lower end is attached to the inner side of the second convex ring.

An oil seal is installed at the upper end of the rotor and is in interference fit with the outer wall of the motor shaft.

The outer edge of the fixed cover is provided with a plurality of through holes, the lower end of the outer wall of the rotor is provided with a plurality of blind holes corresponding to the through holes, and the fixed cover penetrates through the through holes through bolts and is screwed into the blind holes to be fixed at the lower end of the rotor.

The lower end of the fixed cover is provided with a side brush, the lower end of the fixed cover is provided with a plurality of fixed holes, and the upper end of the side brush is screwed into the fixed holes through bolts to be fixedly connected with the fixed cover.

The upper end of the motor shaft is mounted on a force arm, the motor shaft is perpendicular to the force arm, and the force arm is fixedly connected with the motor shaft through a bolt.

The motor shaft comprises a non-circular structure part, the non-circular structure part is located at the upper end of the motor shaft, a mounting hole is formed in the top of the non-circular structure part, and the non-circular structure part is screwed into the mounting hole through a bolt and fixedly mounted at one end of the force arm.

The utility model has the advantages that:

1. the utility model has simple structure, firm assembly, few parts, light weight and low maintenance cost;

2. the non-circular structural part is arranged at the upper end of the motor shaft, so that the matching of the motor shaft and the force arm is limited circumferentially, the relative rotation of the motor shaft and the force arm is avoided, and the side brush is ensured to rotate stably in the working process;

3. the fixed cover is used for connecting the side brush on one hand, and can play a dustproof role on the other hand, so that impurities such as dust, gravel and the like on the road surface are prevented from entering the motor;

4. the oil blanket plays sealed effect, prevents that the inside lubricating oil of bearing from revealing, thereby also can avoid impurity such as outside dust, water to get into the inside damage bearing of bearing simultaneously, makes the life-span of motor shorten.

Drawings

FIG. 1 is an exploded view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic view of the fixing cover of the present invention;

fig. 4 is a schematic view of a rotor of the present invention;

fig. 5 is a schematic view of the utility model applied to a sweeper.

In the figure: the motor comprises a rotor 1, a first convex ring 11, a bonding annular surface 12, a blind hole 13, a stator 2, a motor shaft 3, a non-circular structure part 31, a mounting hole 32, a fixing cover 4, a through hole 41, a fixing hole 42, a limiting ring 43, a second convex ring 44, a bearing 5, an oil seal 6, an edge brush 7 and a force arm 8.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 to 5, an outer rotor edge brush motor includes a rotor 1, a stator 2, a motor shaft 3 and a fixing cover 4, the stator 2 is in interference fit with an outer wall of the motor shaft 3, an upper end of the stator 2 is abutted to a lower end of a shaft shoulder of the motor shaft 3, a lower end of the stator 2 is limited by a shaft retainer ring, the rotor 1 is installed on an outer side of the motor shaft 3, an air gap is formed between an inner side of an outer wall of the rotor 1 and an annular outer wall of the stator 2, the rotor 1 includes magnetic steel adhered to an annular inner wall of the rotor through glue, an air gap is formed between an inner side wall of the magnetic steel and the annular outer wall of the stator 2, and a bearing 5 is installed between. The fixed cover 4 is installed at the lower end of the rotor 1, a plurality of through holes 41 are formed in the outer edge of the fixed cover 4, a plurality of blind holes 13 corresponding to the through holes 41 are formed in the lower end of the outer wall of the rotor 1, and the fixed cover 4 penetrates through the through holes 41 through bolts and is screwed into the blind holes 13 to be fixed at the lower end of the rotor 1. Install bearing 5 between fixed lid 4 and the motor shaft 3, fixed lid 4 is used for connecting limit brush 7 on the one hand, and on the other hand also can play dustproof effect, has prevented that impurities such as dust, grit on road surface from getting into inside the motor.

Rotor 1's centre downwardly extending forms first bulge loop 11, rotor 1 is still including laminating anchor ring 12, laminating anchor ring 12 is located the inboard upper end of first bulge loop 11, is located the upper end the lower terminal surface of bearing 5's up end laminating anchor ring 12 is located the upper end promptly the lower terminal surface of laminating anchor ring 12 is laminated to the outer lane upper end of bearing 5, is located the upper end the inboard of the first bulge loop 11 of the outside laminating of bearing 5 is located the upper end promptly the inboard of the first bulge loop 11 of the outer lane outer wall laminating of bearing 5 is located the upper end the inner circle lower extreme butt shaft shoulder upper end of bearing 5.

The middle of the fixed cover 4 extends upwards to form a second convex ring 44, the fixed cover 4 further comprises a limiting ring 43, the limiting ring 43 is located at the lower end of the inner side of the second convex ring 44, the lower end of the limiting ring 43 is located at the upper end face of the lower end face of the bearing 5 attached to the limiting ring 43, namely, the lower end of the outer ring of the bearing 5 attached to the upper end face of the limiting ring 43, the lower end of the outer side of the bearing 5 attached to the inner side of the second convex ring 44, namely, the lower end of the outer ring of the bearing 5 attached to the inner side of the second convex ring 44, and the lower end of the inner ring of the bearing 5 attached to.

Oil blanket 6 is installed to the upper end of rotor 1, oil blanket 6 and motor shaft 3's outer wall interference fit, oil blanket 6 play the sealing effect, prevent that the inside lubricating oil of bearing 5 from revealing, thereby also can avoid impurity such as outside dust, water to get into inside damage bearing 5 of bearing 5 simultaneously, make the life-span of motor shorten.

The lower end of the fixed cover 4 is provided with a side brush 7, the lower end of the fixed cover 4 is provided with a plurality of fixing holes 42, and the upper end of the side brush 7 is screwed into the fixing holes 42 through bolts to be fixedly connected with the fixed cover 4.

The upper end of the motor shaft 3 is installed on a force arm 8, the force arm 8 can lift in the vertical direction, the motor shaft 3 is perpendicular to the force arm 8, and the force arm 8 is fixedly connected with the motor shaft 3 through a bolt.

The motor shaft 3 comprises a non-circular structure part 31, the non-circular structure part 31 is located at the upper end of the motor shaft 3, the non-circular structure part 31 is mainly used for circumferential limiting when being matched with the force arm 8, the motor shaft 3 and the force arm 8 are prevented from rotating relatively, a mounting hole 32 is formed in the top of the non-circular structure part 31, and the non-circular structure part 31 is screwed into the mounting hole 32 through a bolt and fixedly mounted at one end of the force arm 8.

The utility model is mainly used for the side brush of the sweeper, when the sweeper needs to be cleaned, the force arm 8 is lowered, the lower end of the side brush 7 touches the ground, and the motor is turned on to clean; when the cleaning is not needed, the force arm 8 is lifted, the lower end of the side brush 7 is separated from the ground, and the service life of the side brush 7 is prevented from being shortened due to long-time friction with the ground in the driving process.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides an outer rotor limit brush motor, includes rotor (1), stator (2), motor shaft (3) and fixed lid (4), its characterized in that: the outer wall interference fit of stator (2) and motor shaft (3), install in the outside of motor shaft (3) rotor (1), the outer wall inboard of rotor (1) with form the air gap between stator (2) the annular outer wall, install bearing (5) between rotor (1) and motor shaft (3), install in the lower extreme of rotor (1) fixed lid (4), install bearing (5) between fixed lid (4) and motor shaft (3).

2. An outer rotor side brush motor as claimed in claim 1, wherein: the middle of rotor (1) downwardly extending forms first bulge loop (11), rotor (1) is still including laminating anchor ring (12), laminating anchor ring (12) are located the inboard upper end of first bulge loop (11), are located the upper end the lower terminal surface of the up end laminating anchor ring (12) of bearing (5) is located the upper end the inboard of the first bulge loop (11) of outside laminating of bearing (5).

3. An outer rotor side brush motor as claimed in claim 1, wherein: the middle of the fixed cover (4) extends upwards to form a second convex ring (44), the fixed cover (4) further comprises a limiting ring (43), the limiting ring (43) is located at the lower end of the inner side of the second convex ring (44), the lower end face of the bearing (5) located at the lower end is attached to the upper end face of the limiting ring (43), and the outer side of the bearing (5) located at the lower end is attached to the inner side of the second convex ring (44).

4. An outer rotor side brush motor as claimed in claim 1, wherein: an oil seal (6) is installed at the upper end of the rotor (1), and the oil seal (6) is in interference fit with the outer wall of the motor shaft (3).

5. An outer rotor side brush motor as claimed in claim 1, wherein: the outer edge of the fixed cover (4) is provided with a plurality of through holes (41), the lower end of the outer wall of the rotor (1) is provided with a plurality of blind holes (13) corresponding to the through holes (41), and the fixed cover (4) penetrates through the through holes (41) through bolts and is screwed into the blind holes (13) to be fixed at the lower end of the rotor (1).

6. An outer rotor side brush motor as claimed in claim 1, wherein: the lower end of the fixed cover (4) is provided with a side brush (7), the lower end of the fixed cover (4) is provided with a plurality of fixed holes (42), and the upper end of the side brush (7) is screwed into the fixed holes (42) through bolts to be fixedly connected with the fixed cover (4).

7. An outer rotor side brush motor as claimed in claim 1, wherein: the upper end of the motor shaft (3) is installed on the force arm (8), the motor shaft (3) is perpendicular to the force arm (8), and the force arm (8) is fixedly connected with the motor shaft (3) through a bolt.

8. An outer rotor side brush motor according to claim 7, wherein: the motor shaft (3) comprises a non-circular structure part (31), the non-circular structure part (31) is located at the upper end of the motor shaft (3), a mounting hole (32) is formed in the top of the non-circular structure part (31), and the non-circular structure part (31) is screwed into the mounting hole (32) through a bolt and fixedly mounted at one end of the force arm (8).