CN114583911B

CN114583911B - Three-phase asynchronous motor with high-strength structure

Info

Publication number: CN114583911B
Application number: CN202210245055.3A
Authority: CN
Inventors: 徐祖平; 徐济高; 裘霖富; 章凯凯; 王力锋
Original assignee: Shaoxing Motai Electromechanical Science & Technology Co ltd
Current assignee: Shaoxing Motai Electromechanical Science & Technology Co ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2023-08-04
Anticipated expiration: 2042-03-14
Also published as: CN114583911A

Abstract

The invention discloses a three-phase asynchronous motor with a high-strength structure, wherein a protective shell is sleeved outside the motor in a sliding manner, one end of the protective shell, which faces towards a motor shaft of the motor, is in an open structure, an end cover is detachably connected to the open position, the motor shaft of the motor extends to the outside after passing through the end cover, radiating strips are formed on two sides of the motor along the length direction of the motor, a heat conducting groove matched with the radiating strips is formed on the inner wall of the protective shell, a housing communicated with the protective shell is fixedly arranged at one end of the protective shell, which faces away from the open position, a cooling fan is arranged in the housing, an air deflector is fixedly arranged at the position, close to the housing, inside the protective shell, of the air deflector and a port of the protective shell are formed, one side, which faces towards the open position of the protective shell, of the air deflector is in a plane shape, one side, which faces towards the cooling fan, of the cooling fan is inclined, and cooling air output by the cooling fan is guided into the heat conducting groove through the air deflector. The invention can improve the strength of the motor and can meet the heat dissipation requirement of the motor.

Description

Three-phase asynchronous motor with high-strength structure

Technical Field

The invention relates to the technical field of motors, in particular to a three-phase asynchronous motor with a high-strength structure.

Background

The motor is arranged on various mechanical equipment and is a main power source for executing actions of the mechanical equipment, and the motor is usually directly fixed on the mechanical equipment, and the output end of the motor is directly connected with the execution assembly or through a transmission piece, and the transmission piece drives the execution assembly to act to complete corresponding actions. However, the strength of the motor is not defined effectively and normally in the industry, most of the motors are directly exposed to the outside for working, and special working occasions exist, so that the motor is required to be isolated from personnel, and a warning line is adopted or a thin metal sheet is welded on the motor for achieving the isolation purpose in the common practice. When the mechanical equipment falls down once in the transportation or lifting process, the strength of the motor is not enough to resist external mechanical damage, so that the motor is extremely likely to be damaged, the strength of the motor needs to be improved, the motor is improved in the prior art from the material of the motor, the strength of the motor is improved by adopting a high-strength metal or alloy material as a motor shell, and the strength and the heat dissipation performance of the motor are very difficult to balance at the moment.

Disclosure of Invention

The present invention is directed to a three-phase asynchronous motor having a high-strength structure to solve the problems set forth in the background art described above.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a three-phase asynchronous motor with high strength structure, including the motor, the outside slip of motor has cup jointed the protecting crust, the protecting crust is open structure towards the one end of motor shaft, and this open department can dismantle and be connected with the end cover, the motor shaft of motor extends to outside after passing the end cover, the both sides of motor are formed with the radiating strip along its length direction, be formed with the heat conduction groove with the radiating strip looks adaptation on the inner wall of protecting crust, the longitudinal section of heat conduction groove is greater than the radiating strip, the protecting crust deviates from open one end fixed mounting and has the housing that is linked together with the protecting crust, the internally mounted of housing has cooling fan, the inside of protecting crust is close to the fixed mounting of position department of housing has the aviation baffle, the aviation baffle is formed with the clearance with the port department of protecting crust, the aviation baffle is planar form towards the open one side of protecting crust, one side towards cooling fan is the slope form, cooling fan output cooling wind passes through the aviation baffle water conservancy diversion to the heat conduction groove.

Preferably, the outside of protecting crust and end cover is equal fixed mounting and is installed the subassembly, and the installation subassembly is including solid fixed ring and installation rings, and gu fixed ring on the protecting crust is fixed cup joints in the outside of protecting crust, gu fixed ring on the end cover is fixed cup joints in the end cover outside, and annular distribution has a plurality of lugs on the periphery of installation rings, and annular distribution has a plurality of damper between gu fixed ring and the installation rings.

Preferably, the damping assembly comprises a limiting frame, an arc plate and a chute piece fixed on the inner side of the installation hanging ring, the bottom end of the arc plate is hinged to the inner side of the installation hanging ring, a second torsion spring is installed at the hinged position, the limiting frame is fixedly connected to the outer side of the fixing ring, the arc plate is reversely bent and upwards extends to penetrate through the limiting frame and then is connected with a baffle, one side of the baffle, which is away from the arc plate, is hinged to two connecting rods which are mutually parallel, a sliding block is in rolling connection in the chute piece, the tail ends of the two connecting rods are downwards extended along the inclined direction and are eccentrically and rotationally connected with the sliding block, and a first torsion spring is installed at the rotating connection position of the connecting rod and the sliding block.

Preferably, a groove is formed at the outer side of the fixing ring corresponding to the position of the limiting frame, and a roller in rolling connection with the arc plate is rotationally connected in the groove.

Preferably, one end that the protecting shell links to each other with the end cover is formed with four connection building blocks, and the inside of connecting the building block link up along the length direction of protecting shell and has seted up first screw hole, is formed with the second screw hole that suits with it in the position department that corresponds first screw hole on the terminal surface of end cover, and protecting shell and end cover pass through the screw and implant to first screw hole and second screw hole and link to each other.

Preferably, the shock absorbing assembly is used in the following manner: the fixed ring shakes the cambered surface that acts on the arc, makes the arc carry out anticlockwise rotation through the cylinder, and anticlockwise rotation of arc passes through the connecting rod and promotes the sliding block and slide in the spout piece to make the sliding block produce anticlockwise rotation of certain angle when sliding, the rotation of sliding block makes first torsional spring produce clockwise torsion, can play the cushioning effect to the vibrations of motor through this torsion, and when damper did not receive vibrations, the arc rotated initial position through the second torsional spring, and moved initial position through arc drive sliding block.

Compared with the prior art, the invention provides the three-phase asynchronous motor with a high-strength structure, which has the following beneficial effects:

(1) According to the invention, the protecting shell and the end cover are sleeved outside the motor, and the protecting shell and the end cover form a closed structure, so that the motor can be protected, the motor can be prevented from being damaged due to collision in the transportation or lifting process, the installing components for installing the motor are fixedly connected to the outsides of the protecting shell and the end cover, the motor is arranged in a working environment through the installing components, the traditional mode of fixing the motor on a certain flat plate by bolts is avoided, the connecting loosening phenomenon caused by vibration of the motor can be avoided by the installing lifting lugs distributed in an annular mode, and the stability of the motor in installation and operation is effectively ensured.

(2) The heat dissipation strips are formed on the two sides of the motor along the length direction of the motor, the heat dissipation strips are uniformly distributed on the motor to form heat dissipation fins, the heat conduction grooves matched with the heat dissipation strips are formed on the inner wall of the protective shell, cooling air output by the cooling fan is led into the heat conduction grooves through the inclined surfaces of the air guide plates, and the cooling air generated by the cooling fan continuously exchanges heat with heat in the heat dissipation strips through the heat conduction grooves, so that heat generated by the motor is timely dissipated, and the service life of the motor is guaranteed.

(3) According to the invention, a plurality of damping assemblies are annularly distributed between the fixed ring and the mounting hanging ring, the motor is in a high-frequency vibration state in the running state, the protective shell acts on the fixed ring, the fixed ring vibrates on the arc plate in the damping assemblies, the arc plate rotates anticlockwise through the roller, the anticlockwise rotation of the arc plate pushes the sliding block to slide in the sliding chute part through the connecting rod, the sliding block generates anticlockwise rotation at a certain angle during sliding, the rotation of the sliding block enables the first torsion spring to generate clockwise torsion, and the vibration of the motor can be damped through the torsion, so that the stability of the motor during mounting is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the invention and do not constitute a limitation to the invention, and in which:

FIG. 1 is a schematic view of the overall structure of a motor according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partial explosion structure of a motor according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a first angle of a protective shell according to an embodiment of the invention;

FIG. 4 is a schematic cross-sectional view of a second angle of the protective shell according to an embodiment of the invention;

FIG. 5 is a schematic view of a mounting assembly according to an embodiment of the present invention;

FIG. 6 is a schematic view of a first angle of a damper assembly according to an embodiment of the present invention;

FIG. 7 is a schematic view of a second angle of a damper assembly according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a slider according to an embodiment of the present invention.

In the figure: 1. a protective shell; 2. an end cap; 3. a mounting assembly; 4. a motor; 5. a heat dissipation strip; 6. a heat conduction groove; 7. a cooling fan; 8. an air deflector; 9. a fixing ring; 10. installing a hanging ring; 11. a shock absorbing assembly; 12. an arc-shaped plate; 13. a limit frame; 14. a roller; 15. a baffle; 16. a connecting rod; 17. a chute member; 18. a sliding block; 19. a first torsion spring; 20. a second torsion spring; 21. lifting lugs; 22. a housing; 23. and connecting the building blocks.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.

Referring to fig. 1-8, the present embodiment proposes a three-phase asynchronous motor with a high strength structure, including a motor 4, the exterior of the motor 4 is slidably sleeved with a protecting shell 1, one end of the protecting shell 1 facing a motor shaft of the motor 4 is in an open structure, and the open part is detachably connected with an end cover 2, the motor shaft of the motor 4 passes through the end cover 2 and extends to the exterior, both the protecting shell 1 and the end cover 2 are made of high strength materials, so that a certain protection can be formed on the motor 4.

The protecting shell 1 and the end cover 2 in the embodiment are connected in a bolt mode, specifically, four connecting building blocks 23 are formed at one end, connected with the end cover 2, of the protecting shell 1, first threaded holes are formed in the connecting building blocks 23 in a penetrating mode along the length direction of the protecting shell 1, second threaded holes matched with the first threaded holes are formed in the end face of the end cover 2 at positions corresponding to the first threaded holes, and the protecting shell 1 and the end cover 2 are implanted into the first threaded holes and the second threaded holes through screws to be connected.

Because the motor 4 outside in this application adopts high strength's protecting crust 1 and end cover 2 cladding, and motor 4 can produce a large amount of heat at the operation in-process, if the heat that motor 4 produced can't timely dispel away, then not only can accelerate the ageing of motor 4, and the heat rise can also bring the influence to the inside electrical components of motor 4, consequently, in order to can be in the timely dismantlement of the inside heat of protecting crust 1, this embodiment is formed with radiating strip 5 along its length direction in the both sides of motor 4, radiating strip 5 evenly distributed forms radiating fin on motor 4, and then be formed with the heat conduction groove 6 with radiating strip 5 looks adaptation on the inner wall of protecting crust 1. In order to make the cooling medium fully contact with the heat dissipation strips 5 through the heat conduction grooves 6, in this embodiment, the longitudinal section of the heat conduction grooves 6 is larger than the heat dissipation strips 5, so that the cooling medium can fully contact with the heat dissipation strips 5 when flowing in the heat conduction grooves 6, and the heat dissipation effect is improved.

The shield shell 1 deviating from the open one end fixed mounting has the housing 22 that is linked together with the shield shell 1, the internally mounted of housing 22 has cooling fan 7, the cooling medium in this embodiment is the cooling air that cooling fan 7 during operation produced, in order to be quick with the cooling air guide of cooling fan 7 production to heat conduction groove 6 inside, the fixed mounting of the inside department that is close to housing 22 of shield shell 1 has aviation baffle 8 in this embodiment, the aviation baffle 8 has certain distance from the port department of shield shell 1, the clearance between the two forms the windage passageway, and aviation baffle 8 is planar towards the open one side of shield shell 1, one side towards cooling fan 7 is the slope form, cooling air that cooling fan 7 output is led into heat conduction groove 6 through the inclined plane of aviation baffle 8, the cooling air source that cooling fan 7 produced is constantly accomplishes the heat exchange through heat conduction groove 6 and the heat in the radiating strip 5, accomplish the windage of heat exchange and flow from end cover 2.

The outside of protecting crust 1 and end cover 2 is all fixed mounting has installation component 3, installation component 3 is including solid fixed ring 9 and installation rings 10, gu fixed ring 9 on protecting crust 1 is fixed cup joints in the outside of protecting crust 1, gu fixed ring 9 on the end cover 2 is fixed cup joints in the end cover 2 outside, annular distribution has a plurality of lugs 21 on the periphery of installation rings 10, installation component 3 is fixed in the position that needs work through installation rings 10, annular distribution has a plurality of damper 11 between gu fixed ring 9 and the installation rings 10, damper 11 can shock attenuation to high-frequency vibration's motor 4, thereby improve the stability when motor 4 installs.

Specifically, the damping component 11 in this embodiment includes a limiting frame 13, an arc plate 12, and a chute member 17 fixed on the inner side of the mounting suspension ring 10; wherein the bottom of arc 12 is articulated with the inboard of installation rings 10 to articulated department installs second torsional spring 20, and spacing frame 13 fixed connection is in the outside of solid fixed ring 9, and arc 12 reverse bending upwards extends and is connected with baffle 15 after passing spacing frame 13, and spacing frame 13 can be spacing to the removal formation of arc 12, prevents that it from taking place the off tracking phenomenon, and the cross section setting of baffle 15 is greater than the cross section of spacing frame 13, so can guarantee that arc 12 can not break away from spacing frame 13. The baffle 15 is articulated to have two connecting rods 16 that are parallel to each other that face away from one side of arc 12, and roll connection has sliding block 18 in the spout piece 17, and the terminal of two connecting rods 16 all extends along the incline direction downwardly and is connected with the eccentric rotation of sliding block 18 to connecting rod 16 and sliding block 18's rotation junction installs first torsional spring 19, and first torsional spring 19 atress forms the shock attenuation to motor 4 when the relative rotation takes place for the two.

Further, a groove is formed at the position of the outer side of the fixed ring 9 corresponding to the limit frame 13, and a roller 14 in rolling connection with the arc plate 12 is rotatably connected in the groove.

The embodiment provides a three-phase asynchronous motor with a high-strength structure, and the specific working principle is as follows: the heat dissipation strip 5 on the motor 4 is aligned with the heat conduction groove 6 on the inner wall of the protective shell 1 and is inserted into the protective shell 1, then the end cover 2 is covered at the opening of the protective shell 1, and then the heat dissipation strip is twisted into the first threaded hole and the second threaded hole by bolts, so that the end cover 2 and the protective shell 1 are connected together. The motor 4 with the protective shell 1 is arranged at the working position through the lifting lug 21 on the mounting assembly 3, and the motor 4 is started to be put into operation. The motor 4 generates heat in the running process, at this time, the cooling fan 7 in the housing 22 is started, cooling air flow generated by the cooling fan 7 runs into the heat conducting groove 6 through the air deflector 8, the cooling air flow generated by the cooling fan 7 continuously exchanges heat with the heat in the heat radiating strip 5 through the heat conducting groove 6, and air flow for completing heat exchange flows out from the end cover 2.

The motor 4 is in a high-frequency vibration state in an operating state, the protective shell 1 acts on the fixed ring 9, the fixed ring 9 vibrates and acts on the cambered surface of the arc plate 12, so that the arc plate 12 rotates anticlockwise through the roller 14, the anticlockwise rotation of the arc plate 12 pushes the sliding block 18 to slide in the chute piece 17 through the connecting rod 16, the sliding block 18 rotates anticlockwise at a certain angle during sliding, the first torsion spring 19 generates clockwise torsion force through the rotation of the sliding block 18, vibration of the motor 4 can be damped through the torsion force, and when the vibration absorbing assembly 11 is not vibrated, the arc plate 12 rotates to an initial position through the second torsion spring 20 and drives the sliding block 18 to move to the initial position through the arc plate 12.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and scope of the invention as defined by the claims and their equivalents.

Claims

1. The three-phase asynchronous motor with the high-strength structure comprises a motor (4), and is characterized in that a protecting shell (1) is sleeved outside the motor (4) in a sliding manner, one end of the protecting shell (1) facing a motor shaft of the motor (4) is of an open structure, an end cover (2) is detachably connected to the open position, the motor shaft of the motor (4) penetrates through the end cover (2) and then extends to the outside, heat radiating strips (5) are formed on two sides of the motor (4) along the length direction of the motor, heat conducting grooves (6) matched with the heat radiating strips (5) are formed on the inner wall of the protecting shell (1), the longitudinal section of the heat conducting grooves (6) is larger than the heat radiating strips (5), a housing (22) communicated with the protecting shell (1) is fixedly arranged at one end of the protecting shell (1) facing away from the open end, a cooling fan (7) is fixedly arranged in the position, close to the housing (22), a gap is formed between the air deflector (8) and the port of the protecting shell (1), the air deflector (8) faces one side of the protecting shell (1) in a plane, and the cooling fan (7) faces the cooling fan (7), and the cooling fan (7) is obliquely faces the cooling fan (7) and is obliquely arranged in the cooling fan;

the outer sides of the protective shell (1) and the end cover (2) are fixedly provided with mounting assemblies (3), each mounting assembly (3) comprises a fixed ring (9) and a mounting hanging ring (10), the fixed rings (9) on the protective shell (1) are fixedly sleeved on the outer sides of the protective shell (1), the fixed rings (9) on the end cover (2) are fixedly sleeved on the outer sides of the end cover (2), a plurality of hanging lugs (21) are annularly distributed on the circumferential surface of the mounting hanging ring (10), and a plurality of damping assemblies (11) are annularly distributed between the fixed rings (9) and the mounting hanging ring (10);

the damping assembly (11) comprises a limiting frame (13), an arc plate (12) and a chute piece (17) fixed on the inner side of an installation lifting ring (10), the bottom end of the arc plate (12) is hinged to the inner side of the installation lifting ring (10), a second torsion spring (20) is installed at the hinged position, the limiting frame (13) is fixedly connected to the outer side of a fixed ring (9), a baffle (15) is connected after the arc plate (12) reversely bends upwards to extend through the limiting frame (13), two connecting rods (16) which are arranged in parallel are hinged to one side, deviating from the arc plate (12), of the baffle (15), sliding blocks (18) are connected in a rolling mode in the chute piece (17), the tail ends of the two connecting rods (16) extend downwards along the inclined direction and are eccentrically and rotatably connected with the sliding blocks (18), and a first torsion spring (19) is installed at the rotating connection position of the connecting rods (16) and the sliding blocks (18).

2. The three-phase asynchronous motor with high-strength structure according to claim 1, characterized in that a groove is formed at the outer side of the fixed ring (9) corresponding to the position of the limit frame (13), and a roller (14) in rolling connection with the arc plate (12) is rotatably connected in the groove.

3. The three-phase asynchronous motor with high strength structure according to claim 1, characterized in that: four connecting building blocks (23) are formed at one end of the protecting shell (1) connected with the end cover (2), first threaded holes are formed in the connecting building blocks (23) in a penetrating mode along the length direction of the protecting shell (1), second threaded holes matched with the first threaded holes are formed in the end face of the end cover (2) at positions corresponding to the first threaded holes, and the protecting shell (1) is connected with the end cover (2) through screw implantation into the first threaded holes and the second threaded holes.

4. The three-phase asynchronous motor with high strength structure according to claim 2, characterized in that: the specific using method of the damping component (11) is as follows: the fixed ring (9) vibrates the cambered surface that acts on the arc (12), makes the arc (12) carry out anticlockwise rotation through cylinder (14), and anticlockwise rotation of arc (12) passes through connecting rod (16) and promotes slider (18) and slide in spout piece (17) to make slider (18) produce anticlockwise rotation of certain angle when sliding, rotation of slider (18) makes first torsional spring (19) produce clockwise torsion, can play the cushioning effect to the vibrations of motor (4) through this torsion, and when damper (11) did not receive vibrations, arc (12) rotated to initial position through second torsional spring (20), and drive slider (18) through arc (12) and remove initial position.