CN216056582U

CN216056582U - Noise reduction type motor front cover

Info

Publication number: CN216056582U
Application number: CN202122708404.4U
Authority: CN
Inventors: 李伟伟; 李凤培; 李二巍; 吴文树
Original assignee: Zhejiang Tuosu Motor Manufacturing Co ltd
Current assignee: Zhejiang Tuosu Motor Manufacturing Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-03-15
Anticipated expiration: 2031-11-05

Abstract

The utility model provides a noise reduction type motor front cover, and belongs to the technical field of motors. It is simple that it has solved current motor protecgulum design, and the structure is unreasonable, leads to intensity not high, problem that motor life is low. This type of making an uproar motor protecgulum falls, including the protecgulum body, the shaft hole has been seted up at protecgulum body middle part, it has a plurality of strengthening ribs to distribute along its circumferencial direction on the preceding terminal surface of protecgulum body, and the preceding terminal surface middle part of this protecgulum body has the outside bellied preceding protruding step of axial, the inner integrated into one piece of a plurality of strengthening ribs is on preceding protruding step perisporium, the vertical height from interior to exterior of strengthening rib is steadilyd decrease in proper order, the rear end face middle part axial of protecgulum body is protruding to have the back boss rank, has the round beaded finish on the perisporium of back protruding step, the outer lane of beaded finish is the wave, links to each other through a plurality of stiffeners that are the circumference and distribute between beaded finish and the protecgulum body rear end face. The utility model has the advantages of high stability, high strength and noise reduction.

Description

Noise reduction type motor front cover

Technical Field

The utility model belongs to the technical field of motors, relates to a motor front cover, and particularly relates to a noise reduction type motor front cover.

Background

The motor is generally composed of a housing, a front cover, a rear cover and other parts. The existing motor front cover is simple in design and unreasonable in structure, so that the strength of the motor front cover is not high, and the service life of the motor is influenced.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a noise reduction type motor front cover with high stability and high strength effect.

The purpose of the utility model can be realized by the following technical scheme: a noise reduction type motor front cover comprises a front cover body, wherein a shaft hole is formed in the middle of the front cover body, and the noise reduction type motor front cover is characterized in that a plurality of reinforcing ribs are distributed on the front end face of the front cover body along the circumferential direction of the front cover body, a front convex step protruding outwards in the axial direction is arranged in the middle of the front end face of the front cover body, the inner ends of the reinforcing ribs are integrally formed on the peripheral wall of the front convex step, the longitudinal height of the reinforcing ribs is gradually reduced from inside to outside, a rear convex step protrudes outwards in the middle of the rear end face of the front cover body, a circle of reinforcing ring is arranged on the peripheral wall of the rear convex step, the outer ring of the reinforcing ring is in a wave shape, the reinforcing ring is connected with the rear end face of the front cover body through a plurality of reinforcing rods distributed in the circumferential direction, the reinforcing rods are respectively composed of an inward-inclined rod and an outward-inclined rod, a front convex part is arranged on the inward-inclined rod, a rear convex part is arranged on the outward-inclined rod, the peripheral wall of the front cover body is provided with a plurality of flange connecting parts, and the flange connecting parts are provided with connecting holes and fixing bolts connected in the connecting holes.

In foretell type of making an uproar motor protecgulum falls, the connecting hole in radially expand and to have a flaring fluting, the flaring fluting in be equipped with movable ring and compression spring, compression spring support to lean on to connect on the cell wall of movable ring and flaring fluting, relative arch has two spacing to detain on the perisporium of movable ring, the flaring fluting in seted up and supply two spacing grooves that corresponding spacing detained to stretch into.

In the noise reduction type motor front cover, the reinforcing ribs are arranged in a strip shape.

In the noise reduction type motor front cover, an arc is arranged between the outer periphery of each reinforcing rib and the front end face of the front cover body.

In the noise reduction type motor front cover, the reinforcing rod is integrally formed on the reinforcing ring and the rear end face of the front cover body.

Compared with the prior art, this beneficial effect that type of making an uproar motor protecgulum reaches falls: through the perfect improvement of some column structure on the protecgulum, make this protecgulum have intensity height, the high effect of stability, and then improve the working life and the work efficiency of motor, and this protecgulum still has pleasing to the eye novel advantage.

Drawings

Fig. 1 is a schematic perspective view of a noise reduction type motor front cover.

Fig. 2 is a schematic cross-sectional structural view of the noise reduction type motor front cover.

Fig. 3 is a schematic structural diagram of the rear end face of the front cover of the noise reduction type motor.

Fig. 4 is a simplified diagram of the process before and after the fixing bolt is assembled.

Fig. 5 is a partial structural view of a flange connection portion of the front cover body.

In the figure, 1, a front cover body; 2. reinforcing ribs; 3. a forward convex step; 4. a rear boss step; 5. a reinforcement ring; 6. a reinforcing bar; 7. an inward-inclining rod; 8. a camber pole; 9. a front convex portion; 10. a rear projection; 11. a flange connection; 12. fixing the bolt; 13. flaring and grooving; 14. a movable ring; 15. a compression spring; 16. a limit buckle; 17. a limiting groove; 18. connecting holes; 19. and the shaft hole.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in figures 1, 2, 3, 4 and 5, the noise reduction type motor front cover comprises a front cover body 1, wherein a shaft hole 19 is arranged in the middle of the front cover body 1, a plurality of reinforcing ribs 2 are distributed on the front end surface of the front cover body 1 along the circumferential direction, a front convex step 3 which protrudes outwards in the axial direction is arranged in the middle of the front end surface of the front cover body 1, the inner ends of the reinforcing ribs 2 are integrally formed on the circumferential wall of the front convex step 3, the longitudinal heights of the reinforcing ribs 2 are gradually decreased from inside to outside, a rear convex step 4 protrudes axially in the middle of the rear end surface of the front cover body 1, a circle of reinforcing rings 5 are arranged on the circumferential wall of the rear convex step 4, the outer ring of each reinforcing ring 5 is wavy, the reinforcing rings 5 are connected with the rear end surface of the front cover body 1 through a plurality of reinforcing rods 6 which are distributed in a circumferential manner, each reinforcing rod 6 consists of an inward-inclined rod 7 and an outward-inclined rod 8, a front convex part 9 is arranged on each inward-inclined rod 7, the camber rod 8 is provided with a rear convex part 10, the peripheral wall of the front cover body 1 is provided with a plurality of flange connecting parts 11, the flange connecting parts 11 are provided with connecting holes 18 and fixing bolts 12 connected in the connecting holes 18, and the fixing bolts 12 are used for fixing the front cover body 1 on the machine shell.

The motor front cover is added with a plurality of reinforcing ribs 2, a reinforcing ring 5, a front convex step 3 and a rear convex step 4 which are separated from each other in the front and the rear direction, and a reinforcing rod 6 which is positioned between the rear convex step 4 and the rear end face of the motor front cover, so that the strength of the motor front cover is greatly improved, the whole motor is enabled to obtain sufficient working stability, and the service life and the use effect of the motor are improved.

A flared opening groove 13 is formed in the connecting hole 18 in an radially expanding manner, a movable ring 14 and a compression spring 15 are arranged in the flared opening groove 13, the compression spring 15 is abutted against and connected to the groove walls of the movable ring 14 and the flared opening groove 13, two limit buckles 16 are oppositely protruded on the peripheral wall of the movable ring 14, two limit grooves 17 for the corresponding limit buckles 16 to extend into are formed in the flared opening groove 13, a flange connecting part 11 on the front cover body 1 is connected with a machine shell, the machine shell is also provided with the corresponding flange connecting part 11, the flange connecting part 11 of the front cover body 1 is connected with the flange connecting part 11 of the machine shell through a fixing bolt 12, the movable ring 14 is pressed tightly in the screwing process of the fixing bolt 12, the compression spring 15 is deformed, the limit buckles 16 on the movable ring 14 have the functions of limiting and sliding, the movable ring 14 is prevented from radially moving, therefore, the limit buckles 16 press down along the limit grooves 17, the movable ring 14 also presses down, the fixing bolt 12 is screwed up completely; as shown in fig. 4, which is an analysis diagram of the front and rear tightening processes of the fixing bolt 12, the compression spring 15 can play a role in damping, and when the motor works, the problem that the fixing bolt 12 falls off due to the working vibration of the motor can be prevented, so that a certain noise reduction function is achieved.

Preferably, the reinforcing ribs 2 are arranged in a strip shape.

Preferably, an arc is provided between the outer periphery of each rib 2 and the front end surface of the front cover body 1.

Preferably, the reinforcing bar 6 is integrally formed on the reinforcing ring 5 and the rear end surface of the front cover body 1.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A noise reduction type motor front cover comprises a front cover body (1), wherein a shaft hole (19) is formed in the middle of the front cover body (1), and is characterized in that a plurality of reinforcing ribs (2) are distributed on the front end face of the front cover body (1) along the circumferential direction of the front end face, a front convex step (3) protruding outwards in the axial direction is arranged in the middle of the front end face of the front cover body (1), the inner ends of the reinforcing ribs (2) are integrally formed on the circumferential wall of the front convex step (3), the longitudinal heights of the reinforcing ribs (2) are gradually decreased from inside to outside, a rear convex step (4) protrudes axially in the middle of the rear end face of the front cover body (1), a circle of reinforcing ring (5) is arranged on the circumferential wall of the rear convex step (4), the outer ring of the reinforcing ring (5) is wavy, the reinforcing ring (5) is connected with the rear end face of the front cover body (1) through a plurality of reinforcing rods (6) distributed in the circumferential direction, stiffener (6) from interior to exterior constitute by interior pole (7) and extroversion pole (8) respectively, extroversion pole (7) on have preceding convex part (9), extroversion pole (8) on have back convex part (10), protecgulum body (1) perisporium on have a plurality of flange joint portion (11), flange joint portion (11) on seted up connecting hole (18) and connect in fixing bolt (12) in connecting hole (18).

2. The noise reduction type motor front cover according to claim 1, characterized in that a flaring slot (13) is formed in the connecting hole (18) in an radially expanding manner, a movable ring (14) and a compression spring (15) are arranged in the flaring slot (13), the compression spring (15) is abutted against and connected to the movable ring (14) and the wall of the flaring slot (13), two limit buckles (16) are relatively protruded on the peripheral wall of the movable ring (14), and two limit grooves (17) for the corresponding limit buckles (16) to extend into are formed in the flaring slot (13).

3. The noise reduction type motor front cover according to claim 1, wherein the reinforcing ribs (2) are arranged in a strip shape.

4. The noise reduction type motor front cover according to claim 1, characterized in that an arc is provided between the outer periphery of each reinforcing rib (2) and the front end face of the front cover body (1).

5. A noise-reducing motor front cover according to claim 1, characterized in that the reinforcing rod (6) is integrally formed on the reinforcing ring (5) and the rear end surface of the front cover body (1).