CN219960286U

CN219960286U - Sound-insulation noise-reduction three-phase asynchronous motor

Info

Publication number: CN219960286U
Application number: CN202320973785.5U
Authority: CN
Inventors: 赵晓盼
Original assignee: Lu'an Jintai Motor Co ltd
Current assignee: Lu'an Jintai Motor Co ltd
Priority date: 2023-04-26
Filing date: 2023-04-26
Publication date: 2023-11-03
Anticipated expiration: 2033-04-26

Abstract

The utility model provides a sound-insulation and noise-reduction three-phase asynchronous motor, belongs to the technical field of motors, and is used for solving the technical problem of high noise generated during operation of the existing three-phase asynchronous motor. The sound insulation device comprises a motor main body, a tail cover, a honeycomb plate and a plurality of sound insulation strips, wherein a mounting hole is formed in the tail end of the tail cover, an annular shell is arranged in the mounting hole, a detachable connecting assembly is arranged between the tail cover and the annular shell, the honeycomb plate is arranged on the inner side of the annular shell and made of porous sound absorption materials, a filter screen is fixed on the inner side of the annular shell, the sound insulation strips are distributed on the inner surface of the tail cover, and the sound insulation strips are made of porous sound absorption materials; the sound of the rotation of the heat dissipation fan at the inner side of the tail cover and the sound of the air flow can pass through the sound insulation strips or the honeycomb plates when the sound is transmitted outwards, so that the effect of reducing noise is achieved; the annular shell, the honeycomb plate and the filter screen can be disassembled and assembled by rotating the honeycomb plate, so that operators can conveniently clean the filter screen and the honeycomb plate, and the sound insulation effect is guaranteed to be effective for a long time.

Description

Sound-insulation noise-reduction three-phase asynchronous motor

Technical Field

The utility model belongs to the technical field of motors, and relates to a three-phase asynchronous motor, in particular to a sound-insulation and noise-reduction three-phase asynchronous motor.

Background

The three-phase asynchronous motor is one kind of induction motor and is a motor powered by 380V three-phase AC current (120 deg. phase difference), and the rotor and stator of the three-phase asynchronous motor rotate in the same direction and different rotation speeds and have slip ratio, so that the motor is called a three-phase asynchronous motor. The rotating speed of the rotor of the three-phase asynchronous motor is lower than that of the rotating magnetic field, the rotor winding generates electromotive force and current due to relative motion between the rotor winding and the magnetic field, and electromagnetic torque is generated by interaction between the rotor winding and the magnetic field, so that energy conversion is realized.

The shell rear end of three-phase asynchronous motor generally can all set up radiator fan, then wraps up radiator fan in through the tail-hood, radiator fan rotates along with the motor main shaft, forms by the through-hole on the tail-hood get into and follow the gap exhaust air current between tail-hood and the motor shell surface, the flow course of air current and radiator fan's rotation process all can produce certain noise, along with the increase of motor live time, the noise can be obvious gradually, produces the influence to the surrounding environment.

Based on the above, we design a sound insulation and noise reduction three-phase asynchronous motor.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a sound-insulation and noise-reduction three-phase asynchronous motor, which aims to solve the technical problems that: and reducing noise generated when the three-phase asynchronous motor operates.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a three-phase asynchronous motor that makes an uproar falls in sound insulation, includes motor main part, tail cap, honeycomb panel and a plurality of strip that gives sound insulation, be connected with mounting bolt on the tail cap to fix at motor main part tail end through mounting bolt, and be provided with the rubber ring gasket between tail cap and the motor main part, the mounting hole has been seted up to the end of tail cap, be provided with annular casing in the mounting hole, and be equipped with detachable coupling assembling between tail cap and the annular casing, annular casing inboard is provided with the honeycomb panel, and the honeycomb panel is made by porous sound absorbing material, one side that is close to motor main part of annular casing is fixed with the filter screen, a plurality of strip distributions give sound insulation are at the internal surface of tail cap, and the strip that gives sound insulation is made by porous sound absorbing material.

The detachable connecting assembly comprises a plurality of clamping blocks fixed on the outer surface of the annular shell, the circumferences of the clamping blocks are uniformly distributed, grooves with the uniformly distributed circumferences are formed in the inner wall of the mounting hole, the number of the grooves is consistent with that of the clamping blocks, a plurality of hard rubber blocks are fixed on the inner side of the tail cover, the number of the hard rubber blocks is consistent with that of the grooves, the hard rubber blocks are distributed on one side of the grooves at corresponding positions, one ends, close to the grooves, of the hard rubber blocks are provided with sloping surfaces, positioning grooves are formed in the hard rubber blocks, and the clamping blocks are located in the positioning grooves.

By adopting the structure, the clamping block is positioned at the inner side of the tail cover and clamped at the two sides of the tail cover with the edge of the annular shell, the annular shell is fixed, and when the honeycomb plate or the filter screen needs to be cleaned, an operator can directly rotate the honeycomb plate to drive the clamping block to move, so that the clamping block is separated from the positioning groove and moves to the position aligned with the groove along the slope, then the annular shell, the honeycomb plate and the filter screen can be taken out outwards, the cleaning is convenient, the hard rubber block has good abrasion resistance effect, and the cleaning device is suitable for long-term use.

The inside of tail-hood is fixed with a plurality of separation blades, and separation blade and recess quantity are unanimous, and the separation blade is located the recess and keeps away from one side of hard rubber piece, and separation blade side end flushes with the recess internal surface.

By adopting the structure, when the annular shell is rotated by an operator, the clamping block is gradually separated from the hard rubber block, and when the clamping block is contacted with the baffle plate, the clamping block is just aligned with the groove, so that the annular shell can be directly taken out outwards, and the disassembly and assembly of the operator are facilitated.

The annular shell is sleeved with a rubber backing ring, the cross section of the rubber backing ring is L-shaped, and two sides of the rubber backing ring are respectively propped against the tail cover and the annular shell.

By adopting the structure, the rubber backing ring is blocked between the annular shell and the tail cover, and the annular shell is prevented from colliding with the tail cover when the motor operates and vibrates, so that noise is reduced.

The tail cover is internally provided with a mounting ring, the outer side of the mounting ring is provided with a mounting groove, an anti-slip rubber sheet is fixed in the mounting groove, the outer side of the anti-slip rubber sheet is propped against the inner wall of the tail cover, the circumference of the sound insulation strip is uniformly distributed on the inner surface of the mounting ring, a plurality of gaps are formed in one side of the mounting ring, and the gaps are aligned with the positions of the mounting bolts.

By adopting the structure, when an operator assembles the motor, the mounting ring can be directly pressed to the inner side of the tail cover, at the moment, the anti-slip rubber sheet can prevent the mounting ring from falling off, friction or collision between the mounting ring and the tail cover can be prevented, noise is reduced, the gap is aligned with the position of the mounting bolt, the mounting bolt is easy to fix, and the operator can assemble the motor conveniently.

Compared with the prior art, the sound-insulation and noise-reduction three-phase asynchronous motor has the following advantages:

1. through honeycomb panel and sound insulation strip, the sound of tail-hood inboard heat dissipation fan pivoted and the sound of air flow all can weaken through sound insulation strip or honeycomb panel when outwards propagating, aligns in the propagation route of noise, plays noise abatement's effect.

2. Through fixture block, recess, hard rubber piece and separation blade, rotate the honeycomb panel and can carry out dismouting to annular casing, honeycomb panel and filter screen, make things convenient for operating personnel to wash filter screen and honeycomb panel, guarantee that the sound insulation effect is effective for a long time.

3. Through collar and antiskid sheet rubber, make things convenient for operating personnel to assemble tail boom and sound insulation strip, can prevent simultaneously to produce frictional noise between collar and the tail boom.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the split construction of the mounting ring of the present utility model;

FIG. 3 is a schematic view of the construction of the partial components of the present utility model;

FIG. 4 is a schematic view of the other side of the partial component of the present utility model;

fig. 5 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.

In the figure: 1. a motor main body; 2. a tail cover; 3. installing a bolt; 4. a mounting hole; 5. an annular housing; 6. a honeycomb panel; 7. a filter screen; 8. a clamping block; 9. a groove; 10. a hard rubber block; 11. a slope; 12. a positioning groove; 13. a baffle; 14. a rubber grommet; 15. a mounting ring; 16. a notch; 17. an anti-slip rubber sheet; 18. and (5) sound insulation strips.

Detailed Description

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the patent.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Referring to fig. 1-5, the embodiment provides a three-phase asynchronous motor with sound insulation and noise reduction, which comprises a motor main body 1, a tail cover 2, a honeycomb plate 6 and a plurality of sound insulation strips 18, wherein a mounting bolt 3 is connected to the tail cover 2, the tail end of the motor main body 1 is fixed through the mounting bolt 3, a rubber gasket is arranged between the tail cover 2 and the motor main body 1, a mounting hole 4 is formed in the tail end of the tail cover 2, an annular shell 5 is arranged in the mounting hole 4, a detachable connecting component is arranged between the tail cover 2 and the annular shell 5, the honeycomb plate 6 is arranged on the inner side of the annular shell 5, the honeycomb plate 6 is made of porous sound absorbing materials, a filter screen 7 is fixed on one side, close to the motor main body 1, of the annular shell 5, a plurality of sound insulation strips 18 are distributed on the inner surface of the tail cover 2, and the sound insulation strips 18 are made of the porous sound absorbing materials.

The detachable connecting assembly comprises a plurality of clamping blocks 8 fixed on the outer surface of the annular shell 5, the circumferences of the clamping blocks 8 are uniformly distributed, a plurality of grooves 9 which are uniformly distributed on the circumference are formed in the inner wall of the mounting hole 4, the number of the grooves 9 is consistent with that of the clamping blocks 8, a plurality of hard rubber blocks 10 are fixed on the inner side of the tail cover 2, the number of the hard rubber blocks 10 is consistent with that of the grooves 9, the hard rubber blocks 10 are distributed on one side of the grooves 9 at corresponding positions, a slope 11 is arranged at one end, close to the grooves 9, of each hard rubber block 10, a positioning groove 12 is formed in each hard rubber block 10, and each clamping block 8 is positioned in each positioning groove 12; the fixture block 8 is located the inboard of tail-hood 2, with the border centre gripping of annular casing 5 in the both sides of tail-hood 2, fix annular casing 5, moreover when honeycomb panel 6 or filter screen 7 need clean, operating personnel can directly rotate honeycomb panel 6 drive fixture block 8 and remove for fixture block 8 breaks away from constant head tank 12 and moves to the position of alignment with recess 9 along domatic 11, then can outwards take out annular casing 5, honeycomb panel 6 and filter screen 7, convenient cleanness, and hard rubber piece 10 is stand wear and tear effectual moreover, is fit for long-term use.

A plurality of baffle plates 13 are fixed on the inner side of the tail cover 2, the number of the baffle plates 13 is consistent with that of the grooves 9, the baffle plates 13 are positioned on one side of the grooves 9 far away from the hard rubber blocks 10, and the side ends of the baffle plates 13 are flush with the inner surface of the grooves 9; when the annular shell 5 is rotated by an operator, the clamping block 8 is gradually separated from the hard rubber block 10, and when the clamping block 8 is in contact with the baffle 13, the clamping block 8 is just aligned with the groove 9, so that the annular shell 5 can be directly taken out outwards, and the disassembly and assembly of the operator are facilitated.

The outer side of the annular shell 5 is sleeved with a rubber backing ring 14, the cross section of the rubber backing ring 14 is L-shaped, and two sides of the rubber backing ring 14 respectively prop against the tail cover 2 and the annular shell 5; the rubber grommet 14 is blocked between the annular housing 5 and the tail cap 2, preventing the annular housing 5 from colliding with the tail cap 2 when the motor is operated and generates vibration, thereby reducing the generation of noise.

The inside of the tail cover 2 is provided with a mounting ring 15, the outside of the mounting ring 15 is provided with a mounting groove, an anti-slip rubber sheet 17 is fixed in the mounting groove, the outside of the anti-slip rubber sheet 17 is propped against the inner wall of the tail cover 2, sound insulation strips 18 are circumferentially uniformly distributed on the inner surface of the mounting ring 15, one side of the mounting ring 15 is provided with a plurality of gaps 16, and the gaps 16 are aligned with the positions of the mounting bolts 3; when operating personnel assemble the motor, can directly press the tail-gate 2 inboard with collar 15, anti-skidding rubber sheet 17 can prevent this moment that collar 15 from coming off, can also prevent simultaneously that friction or collision from taking place between collar 15 and the tail-gate 2, the production of noise reduction, breach 16 aligns with mounting bolt 3 position moreover, and mounting bolt 3 is fixed easily, makes things convenient for operating personnel to assemble the motor.

In this embodiment, the fixing manner is the fixing manner most commonly used in the art, such as welding, bolting, etc.

The working principle of the utility model is as follows:

air enters the tail cover 2 through the honeycomb plate 6 and the filter screen 7, is diffused outwards in the tail cover 2, then flows outwards through gaps among the sound insulation strips 18, the filter screen 7 passes through the surface of the honeycomb plate 6 made of porous sound absorbing materials when the noise generated when the air flow passes through the filter screen 7 is outwards transmitted, so that the sound volume is weakened, the sound generated when the heat dissipation fan at the inner side of the tail cover 2 rotates and the sound generated when the air flows outwards are weakened through the sound insulation strips 18 or the honeycomb plate 6 in alignment in the noise transmission path, the effect of reducing the noise is achieved, the clamping blocks 8 are positioned at the inner side of the tail cover 2 and clamped at the two sides of the tail cover 2 with the edge of the annular shell 5, the annular shell 5 is fixed, moreover, when the honeycomb plate 6 or the filter screen 7 needs to be cleaned, an operator can directly rotate the honeycomb plate 6 to drive the clamping block 8 to move, so that the clamping block 8 is separated from the positioning groove 12 and moves to a position aligned with the groove 9 along the slope 11, then the annular shell 5, the honeycomb plate 6 and the filter screen 7 can be taken out outwards, the cleaning is convenient, the hard rubber block 10 has good wear-resistant effect, the motor is suitable for long-term use, the mounting ring 15 can be directly pressed to the inner side of the tail cover 2 when the motor is assembled by the operator, the anti-slip rubber sheet 17 can prevent the mounting ring 15 from falling off, friction or collision between the mounting ring 15 and the tail cover 2 can be prevented, noise is reduced, the notch 16 is aligned with the position of the mounting bolt 3, the mounting bolt 3 is easy to fix, and the motor is convenient for the operator to assemble.

While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a three-phase asynchronous motor that makes an uproar falls in sound insulation, includes motor main part (1), tail cap (2), honeycomb panel (6) and a plurality of sound insulation strip (18), a serial communication port, be connected with mounting bolt (3) on tail cap (2) to fix at motor main part (1) tail end through mounting bolt (3), and be provided with the rubber ring gasket between tail cap (2) and motor main part (1), mounting hole (4) have been seted up to the end of tail cap (2), be provided with annular casing (5) in mounting hole (4), and be equipped with detachable coupling assembling between tail cap (2) and annular casing (5), annular casing (5) inboard is provided with honeycomb panel (6), and honeycomb panel (6) are made by porous sound absorbing material, one side that is close to motor main part (1) of annular casing (5) is fixed with filter screen (7), a plurality of sound insulation strip (18) distribute at the internal surface of tail cap (2), and sound insulation strip (18) are made by porous sound absorbing material.

2. The sound insulation and noise reduction three-phase asynchronous motor according to claim 1, wherein the detachable connection assembly comprises a plurality of clamping blocks (8) fixed on the outer surface of the annular shell (5), the clamping blocks (8) are circumferentially and uniformly distributed, a plurality of circumferentially and uniformly distributed grooves (9) are formed in the inner wall of the mounting hole (4), the grooves (9) are consistent with the clamping blocks (8) in number, a plurality of hard rubber blocks (10) are fixed on the inner side of the tail cover (2), the hard rubber blocks (10) are consistent with the grooves (9) in number, the hard rubber blocks (10) are distributed on one side of the grooves (9) at corresponding positions, a slope (11) is arranged at one end, close to the grooves (9), of each hard rubber block (10), positioning grooves (12) are formed in the corresponding hard rubber blocks (10), and the clamping blocks (8) are located in the positioning grooves (12).

3. The sound-insulating and noise-reducing three-phase asynchronous motor according to claim 2, wherein a plurality of baffle plates (13) are fixed on the inner side of the tail cover (2), the number of the baffle plates (13) is consistent with that of the grooves (9), the baffle plates (13) are located on one side, far away from the hard rubber blocks (10), of the grooves (9), and the side ends of the baffle plates (13) are flush with the inner surface of the grooves (9).

4. The sound-insulating and noise-reducing three-phase asynchronous motor according to claim 1 or 2, wherein a rubber backing ring (14) is sleeved on the outer side of the annular shell (5), the cross section of the rubber backing ring (14) is L-shaped, and two sides of the rubber backing ring (14) are respectively propped against the tail cover (2) and the annular shell (5).

5. The sound-insulating and noise-reducing three-phase asynchronous motor according to claim 1, wherein a mounting ring (15) is arranged in the tail cover (2), a mounting groove is formed in the outer side of the mounting ring (15), an anti-slip rubber sheet (17) is fixed in the mounting groove, the outer side of the anti-slip rubber sheet (17) is abutted against the inner wall of the tail cover (2), sound-insulating strips (18) are circumferentially and uniformly distributed on the inner surface of the mounting ring (15), a plurality of notches (16) are formed in one side of the mounting ring (15), and the notches (16) are aligned with positions of mounting bolts (3).