CN210183149U

CN210183149U - Closed angle mill motor

Info

Publication number: CN210183149U
Application number: CN201921348633.6U
Authority: CN
Inventors: Guangchang Chen; 陈光昌; Jiayong Lin; 林家永
Original assignee: JIANGMEN SST ELECTRICAL APPLIANCES CO Ltd
Current assignee: JIANGMEN SST ELECTRICAL APPLIANCES CO Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-03-24
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses a closed angle mill motor, include: upper cover, rotor subassembly, axle, go up insulating cover, stator core, lower insulating cover and lower cover, the upper cover is equipped with the primary shaft and holds the installation cavity, installs the primary shaft in the primary shaft holds the installation cavity, and the primary shaft holds the rear side and is equipped with the bearing end plate, and upper cover, lower cover are equipped with the boss, and stator core is equipped with and boss complex recess, is equipped with seal gasket between upper cover, lower cover and the stator core, the utility model discloses simple structure, leakproofness are good, can effectively prevent dust and iron fillings.

Description

Closed angle mill motor

Technical Field

The utility model relates to the field of motors, in particular to closed angle mill motor.

Background

The angle mill motor adopts the direct current to have brush motor more, this motor noise is big, inefficiency, the life-span is subject to the carbon brush, the carbon brush is in case used up, to the ordinary user, the angle mill just can't use completely, so direct current brushless motor uses gradually on the angle mill, but because direct current brushless motor's rotor is magnetic material, and the operational environment of angle mill often contains iron fillings, lead to the abnormal sound of motor on avoiding iron fillings to adsorb the rotor, the card dies even, influences the life of angle mill motor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a closed angle mill motor simple structure, sealing performance is good.

In order to solve the technical problem, the utility model discloses a technical scheme does:

a closed angle grinder motor comprising: upper cover, rotor subassembly, axle, go up insulating cover, stator core, lower insulating cover and lower cover, its characterized in that: the upper cover is provided with a first bearing installation cavity, a first bearing is installed in the first bearing installation cavity, a bearing end plate for fixing the first bearing and sealing is arranged on the rear side of the first bearing, the upper cover is provided with a first boss, the lower cover is provided with a second boss, a first groove and a second groove which are matched with the first boss and the second boss are respectively arranged at two ends of the stator core, a first sealing gasket is arranged between the upper cover and the stator core, a second sealing gasket is arranged between the lower cover and the stator core, the first sealing gasket is provided with a first concave part matched with the first boss, the second sealing gasket is provided with a second concave part matched with the second boss, the thicknesses of the first sealing gasket and the second sealing gasket are 1-2 mm, and the upper cover is connected with the lower cover through bolts.

The utility model discloses a further improvement, first boss reaches the quantity of second boss is four, and first boss and second boss evenly distributed respectively are in the upper cover reaches the lower cover with stator core complex one end.

The utility model discloses a further improvement, the stator core side is equipped with the heat dissipation muscle that is used for increasing heat radiating area.

The utility model discloses a further improvement, the upper cover both sides are equipped with first connecting portion, the lower cover both sides are equipped with the second connecting portion, first connecting portion with the second connecting portion pass through bolted connection.

The utility model discloses a further improvement still includes the flabellum, the flabellum is fixed epaxial and is located the lower cover rear.

Adopt above-mentioned technical scheme, the first bearing rear side is equipped with the bearing end plate, can prevent inside dust scrap iron etc. gets into from the axle mounting hole of upper cover, and the upper cover passes through the boss with the lower cover and is connected with the cooperation of recess, makes overall structure inseparable, all is equipped with seal gasket simultaneously between upper cover, lower cover and the stator core, guarantees the leakproofness, and the motor is whole to be in airtight state, effectively prevents inside the iron fillings dust gets into, ensures the normal work of angle mill motor.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the exploded structure of the present invention;

the following are marked in the figure: 1. an upper cover; 11. a first bearing mounting cavity; 12. a first bearing; 13. a bearing end plate; 14. a first boss; 15. a first sealing gasket; 151. a first recess; 16. a first connection portion; 2. a rotor assembly; 3. a shaft; 4. an insulating sleeve is arranged; 5. a stator core; 51. a first groove; 52. a second groove; 53. heat dissipation ribs; 6. a lower insulating sleeve; 7. a lower cover; 71. a second boss; 72. a second sealing gasket; 721. a second recess; 73. a second connecting portion; 8. a fan blade; 9. and (4) bolts.

Detailed Description

As shown in FIGS. 1-2, the utility model discloses an embodiment, a closed angle mill motor, include: the upper cover 1, the rotor component 2, the shaft 3, the upper insulating sleeve 4, the stator core 5, the lower insulating sleeve 6 and the lower cover 7, the upper cover 1 is provided with a first bearing installation cavity 11, a first bearing 12 is installed in the first bearing installation cavity 11, a bearing sleeve is arranged between the first bearing installation cavity 11 and the first bearing 12, the installation of the first bearing 12 is facilitated, a rear bearing end plate 13 of the first bearing 12 is fixed by the bearing end plate 13, and meanwhile scrap iron can be prevented from entering the motor from a shaft installation hole of the upper cover 1, the lower cover 7 is provided with a second bearing installation cavity, a second bearing is arranged in the second bearing installation cavity, two ends of the shaft are respectively in rotating fit with the upper cover 1 and the rear cover through the first bearing 12 and the second bearing, the upper cover 1 is provided with a first boss 14, the lower cover 7 is provided with a second boss 71, the number of the first boss 14 and the second boss 71 is four, the first boss 14 and the second boss 71 are respectively and evenly distributed at one end of the upper cover 1 and one end of the lower cover 7 matched with the stator core 5, the stator core 5 is provided with a first groove 51 and a second groove 52 at two ends respectively, which are matched with the first boss 14 and the second boss 71, the connection tightness is ensured by the matching of the bosses and the grooves, a first sealing gasket 15 is arranged between the upper cover 1 and the stator core 5, a second sealing gasket 72 is arranged between the lower cover 7 and the stator core 5, the first sealing gasket 15 is provided with a first concave part 151 matched with the first boss 14, the second sealing gasket 72 is provided with a second concave part 721 matched with the second boss 71 to maintain the assembly tightness, the thicknesses of the first sealing gasket 15 and the second sealing gasket 72 are 1-2 mm, the first sealing gasket 15 and the second sealing gasket 72 ensure the connection tightness, dust and scrap iron are prevented from entering the motor from a connection gap, the upper cover 1 is connected with the lower cover 7 through bolts 9, specifically, the first connecting parts 16 are arranged at two sides of the upper cover 1, the second connecting parts 73 are arranged at two sides of the lower cover 7, first connecting portion 16 passes through bolted connection with second connecting portion 73 and is connected, realize upper cover 1, lower cover 7 and stator core 5's fixed connection, go up insulating cover 4 and lower insulating cover 6 and nest respectively at stator core 5's both ends, around having the coil on the insulating cover, reducible magnetic loss, insulating cover plays certain sealed effect simultaneously, the dress is worn in rotor subassembly 2 to axle 3, rotor subassembly 2 is installed in stator core 5, stator core 5 side is equipped with the heat dissipation muscle 53 that is used for increasing heat radiating area, rotor subassembly 2 the utility model discloses still include flabellum 8, flabellum 8 is fixed on axle 3 and is located 7 backs of lower cover, improves heat dispersion, avoids the normal work that the high temperature influences the motor.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A closed angle grinder motor comprising: upper cover (1), rotor subassembly (2), axle (3), go up insulating cover (4), stator core (5), lower insulating cover (6) and lower cover (7), its characterized in that: the upper cover (1) is provided with a first bearing installation cavity (11), a first bearing (12) is installed in the first bearing installation cavity (11), a bearing end plate (13) for fixing the first bearing (12) and sealing is arranged on the rear side of the first bearing (12), the upper cover (1) is provided with a first boss (14), the lower cover (7) is provided with a second boss (71), two ends of the stator core (5) are respectively provided with a first groove (51) and a second groove (52) which are matched with the first boss (14) and the second boss (71), a first sealing gasket (15) is arranged between the upper cover (1) and the stator core (5), a second sealing gasket (72) is arranged between the lower cover (7) and the stator core (5), the first sealing gasket (15) is provided with a first concave part (151) matched with the first boss (14), and the second sealing gasket (72) is provided with a second concave part (721) matched with the second boss (71), the thickness of the first sealing gasket (15) and the second sealing gasket (72) is 1-2 mm, and the upper cover (1) is connected with the lower cover (7) through a bolt (9).

2. The closed angle grinder motor of claim 1, wherein: the number of the first bosses (14) and the number of the second bosses (71) are four, and the first bosses (14) and the second bosses (71) are respectively and uniformly distributed at one end of the upper cover (1) matched with the lower cover (7) matched with the stator core (5).

3. The closed angle grinder motor of claim 1, wherein: and the side surface of the stator core (5) is provided with a heat dissipation rib (53) for increasing the heat dissipation area.

4. The closed angle grinder motor of claim 1, wherein: the improved structure of the automobile seat is characterized in that first connecting portions (16) are arranged on two sides of the upper cover (1), second connecting portions (73) are arranged on two sides of the lower cover (7), and the first connecting portions (16) are connected with the second connecting portions (73) through bolts (9).

5. The closed angle grinder motor of claim 1, wherein: the fan blade assembly is characterized by further comprising fan blades (8), wherein the fan blades (8) are fixed on the shaft and arranged behind the lower cover (7).