CN114583911A

CN114583911A - Three-phase asynchronous motor with high-strength structure

Info

Publication number: CN114583911A
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: 2022-06-03
Anticipated expiration: 2042-03-14
Also published as: CN114583911B

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 to a motor shaft of the motor, is of an open structure, and this uncovered department can dismantle and be connected with the end cover, the motor shaft of motor extends to the outside after passing the end cover, the both sides of motor are formed with the heat dissipation strip along its length direction, be formed with the heat conduction groove with heat dissipation strip looks adaptation on the inner wall of protecting crust, the protecting crust deviates from open one end fixed mounting to have 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 position department fixed mounting of housing, the aviation baffle is formed with the clearance with the port department of protecting crust, the aviation baffle is planar towards the open one side of protecting crust, be the slope form towards one side of cooling fan, the cooling air of cooling fan output passes through the aviation baffle water conservancy diversion to the heat conduction groove in. 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 electric motor is present on various mechanical equipment, which is a main power source for executing actions of each mechanical equipment, and generally, the electric motor is directly fixed on the mechanical equipment, and the output end of the electric motor is directly connected with the execution assembly or connected through a transmission piece, and the transmission piece drives the execution assembly to act so as to complete corresponding actions. However, in the industry at present, an effective and normative definition is not provided for the strength of the motor, most motors are directly exposed to the outside for working, and special working occasions exist, the motors need to be isolated from personnel, and a warning line is adopted or a thin metal sheet is welded on the motors to achieve the isolation purpose in the common method. Mechanical equipment from leaving the factory before using to putting into operation, need transportation and handling installation, once take place to drop when mechanical equipment in transportation or handling in-process, the intensity of motor itself is not enough to resist external mechanical damage, it is extremely likely to damage the motor, consequently just need improve the intensity of motor itself, can improve on the material of motor itself among the prior art, through adopting the metal or the alloy material of high strength as motor housing to promote its intensity, it is difficult at that time with the intensity and the heat dispersion balance of motor good.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems occurring in the background art, and an object of the present invention is to provide a three-phase asynchronous motor having a high strength structure.

In order to achieve the purpose, the invention provides the following technical scheme: a three-phase asynchronous motor with a high-strength structure comprises a motor, wherein a protective shell is sleeved outside the motor in a sliding mode, one end, facing a motor shaft of the motor, of the protective shell is of an open structure, an end cover is detachably connected to the open position, the motor shaft of the motor penetrates through the end cover and then extends to the outside, heat dissipation strips are formed on two sides of the motor along the length direction of the motor, a heat conduction groove matched with the heat dissipation strips is formed in the inner wall of the protective shell, the longitudinal section of the heat conduction groove is larger than the heat dissipation strips, a cover shell communicated with the protective shell is fixedly installed at one end, facing away from the open position, of the protective shell, a cooling fan is installed inside the cover shell, an air deflector is fixedly installed at a position, close to the cover shell, in the protective shell, a gap is formed between the air deflector and the port of the protective shell, the air deflector is planar and is inclined towards one side, facing the open position of the protective shell, the cooling air output by the cooling fan is guided to the heat conducting groove through the air deflector.

Preferably, the installation assembly is fixedly installed on the outer sides of the protective shell and the end cover and comprises a fixing ring and an installation lifting ring, the fixing ring on the protective shell is fixedly sleeved on the outer side of the protective shell, the fixing ring on the end cover is fixedly sleeved on the outer side of the end cover, a plurality of lifting lugs are annularly distributed on the circumferential surface of the installation lifting ring, and a plurality of damping assemblies are annularly distributed between the fixing ring and the installation lifting ring.

Preferably, damper includes spacing frame, the arc and fix the chute spare at installation rings inboard, the bottom of arc is articulated with the inboard of installation rings, and articulated department installs the second torsional spring, spacing frame fixed connection is in solid fixed ring's the outside, the arc buckling upwards extends and is connected with the baffle behind the spacing frame, one side that the baffle deviates from the arc articulates there are two connecting rods of parallel arrangement each other, roll connection has the sliding block in the chute spare, the end of two connecting rods all is connected with the eccentric rotation of sliding block along the incline direction downwardly extending, and first torsional spring is installed with the rotation junction of sliding block to the connecting rod.

Preferably, a groove is formed in the position, corresponding to the limiting frame, of the outer side of the fixing ring, and a roller connected with the arc-shaped plate in a rolling mode is connected in the groove in a rotating mode.

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

Preferably, the specific use method of the shock-absorbing assembly is as follows: gu fixed ring vibrations act on the cambered surface of arc, make the arc carry out anticlockwise rotation through the cylinder, the anticlockwise rotation of arc promotes the sliding block through the connecting rod and slides in the chute spare, and make the sliding block produce the anticlockwise rotation of certain angle when sliding, the rotation of sliding block makes first torsion spring produce clockwise torsion, can play the cushioning effect to the vibrations of motor through this torsion, damping component does not receive when vibrations, the arc passes through the rotation of second torsion spring to initial position, and drive the slider through the arc and remove initial position.

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

(1) according to the invention, the protective shell and the end cover are sleeved outside the motor, a closed structure is formed by the protective shell and the end cover, the motor can be protected, the motor can be prevented from being damaged due to collision in the transportation or hoisting process, the mounting assembly for mounting the motor is fixedly connected to the outer parts of the protective shell and the end cover, the motor is arranged in a working environment through the mounting assembly, the phenomenon that the motor is fixed on a certain flat plate in a traditional bolt mode is avoided, the phenomenon of connection looseness caused by vibration of the motor can be avoided by the mounting lugs distributed in an annular shape, and the stability of the motor in mounting and running is effectively ensured.

(2) The both sides of motor are formed with the heat dissipation strip along its length direction, the heat dissipation strip evenly distributed forms radiating fin on the motor, then be formed with the heat conduction groove with heat dissipation strip looks adaptation on the inner wall of protecting crust, the cooling air of cooling fan output is leading-in to the heat conduction groove through the inclined plane of aviation baffle in, the heat exchange is accomplished through the heat in heat conduction groove and the heat dissipation strip to the cooling air that cooling fan produced is continuous, thereby in time dispel away the produced heat of motor, the life of motor has been ensured.

(3) According to the invention, a plurality of damping components are annularly distributed between the fixing ring and the mounting hanging ring, the motor is in a high-frequency vibration state in an operating state, the protective shell acts on the fixing ring, the fixing ring vibrates and acts on the arc-shaped plate in the damping components, so that the arc-shaped plate rotates anticlockwise through the roller, the anticlockwise rotation of the arc-shaped plate pushes the sliding block to slide in the sliding chute piece through the connecting rod, the sliding block generates anticlockwise rotation at a certain angle when sliding, the rotation of the sliding block enables the first torsion spring to generate clockwise torsion, and the damping effect on the vibration of the motor can be realized 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 embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:

fig. 1 is a schematic view of the overall structure of a motor in an embodiment of the present invention;

FIG. 2 is a schematic view of a partial explosion configuration of the motor in an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view 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 present invention;

FIG. 5 is a schematic structural view of a mounting assembly in an embodiment of the invention;

FIG. 6 is a schematic view of a first angle of the shock absorbing assembly in accordance with an embodiment of the present invention;

FIG. 7 is a second angle schematic view of a shock absorbing assembly in accordance with 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. mounting the component; 4. an electric motor; 5. a heat dissipating strip; 6. a heat conducting 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 limiting frame; 14. a drum; 15. a baffle plate; 16. a connecting rod; 17. a chute member; 18. a slider; 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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of 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 present invention, 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 derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present embodiment provides a three-phase asynchronous motor with a high strength structure, which includes a motor 4, a protective shell 1 is slidably sleeved outside the motor 4, one end of the protective shell 1 facing a motor shaft of the motor 4 is in an open structure, and an end cover 2 is detachably connected to the open structure, the motor shaft of the motor 4 extends to the outside after passing through the end cover 2, and the protective shell 1 and the end cover 2 are both made of a high strength material, which can form a certain protection for the motor 4.

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

Because the outside protective housing 1 and the end cover 2 cladding that adopts high strength of motor 4 in this application, and motor 4 can produce a large amount of heats in the operation, if the produced heat of motor 4 can't in time be gone out, then not only can the ageing of motor 4 be accelerated, and thermal rising still can bring the influence to the electrical components inside motor 4, consequently, in order to can be in the timely effluvium of the inside heat of protective housing 1, this embodiment is formed with heat dissipation strip 5 along its length direction in motor 4's both sides, heat dissipation strip 5 evenly distributed forms radiating fin on motor 4, and then be formed with the heat conduction groove 6 with heat dissipation strip 5 looks adaptation on the inner wall of protective housing 1. In order to make the cooling medium through the abundant strip 5 that contacts with the heat dissipation of heat conduction groove 6, the longitudinal section setting of heat conduction groove 6 is greater than the strip 5 that dispels the heat in this embodiment, and cooling medium can be abundant when 6 inside circulations of heat conduction groove contact with the strip 5 that dispels the heat like this, promotes the radiating effect.

A cover 22 communicated with the protective shell 1 is fixedly installed at one end of the protective shell 1 away from the opening, a cooling fan 7 is installed inside the cover 22, a cooling medium in this embodiment is cooling air generated by the cooling fan 7 during operation, in order to rapidly guide the cooling air generated by the cooling fan 7 into the heat conduction groove 6, in this embodiment, an air deflector 8 is fixedly installed at a position close to the cover 22 inside the protective shell 1, the air deflector 8 has a certain distance from the port of the protective shell 1, an air flow channel is formed by a gap between the air deflector 8 and the cover, one side of the air deflector 8 facing the opening of the protective shell 1 is planar, one side of the air deflector 8 facing the cooling fan 7 is inclined, the cooling air output by the cooling fan 7 is guided into the heat conduction groove 6 through the inclined surface of the air deflector 8, and the cooling air generated by the cooling fan 7 continuously completes heat exchange with heat in the heat dissipation strip 5 through the heat conduction groove 6, the wind flow that completes the heat exchange flows out from the end cover 2.

The equal fixed mounting in the outside of protecting crust 1 and end cover 2 has installation component 3, installation component 3 is including solid fixed ring 9 and installation rings 10, solid fixed ring 9 on the protecting crust 1 is fixed to be cup jointed in the outside of protecting crust 1, gu fixed ring 9 on the end cover 2 is fixed to be cup jointed in the end cover 2 outside, the annular distribution has a plurality of lugs 21 on the periphery of installation rings 10, installation component 3 fixes the position at required work through installation rings 10, the annular distribution has a plurality of shock attenuation module 11 between solid fixed ring 9 and the installation rings 10, shock attenuation module 11 can carry out the shock attenuation to the motor 4 of high frequency vibrations, thereby stability when improving motor 4 and installing.

Specifically, the damping assembly 11 in this embodiment includes a limiting frame 13, an arc-shaped plate 12, and a chute member 17 fixed on the inner side of the mounting hanging ring 10; wherein the bottom of arc 12 is articulated with the inboard of installation rings 10, and articulated department installs second torsional spring 20, spacing frame 13 fixed connection is in the solid fixed ring 9's outside, arc 12 reverse bend upwards extends to extend and is connected with baffle 15 behind the spacing frame 13, spacing frame 13 can be spacing to the removal formation of arc 12, prevent that it from taking place the off tracking phenomenon, and the cross-section setting of baffle 15 is greater than spacing frame 13's cross section, so can guarantee that arc 12 can not break away from spacing frame 13. One side of the baffle 15 departing from the arc-shaped plate 12 is hinged with two connecting rods 16 which are arranged in parallel, a sliding block 18 is connected in a rolling manner in the sliding groove part 17, the tail ends of the two connecting rods 16 extend downwards along the inclined direction and are connected with the sliding block 18 in an eccentric rotating manner, a first torsion spring 19 is installed at the rotating connection position of the connecting rods 16 and the sliding block 18, and when the two rotate relatively, the first torsion spring 19 is stressed to form the shock absorption for the motor 4.

Furthermore, a groove is formed at the position, corresponding to the limiting frame 13, of the outer side of the fixing ring 9, and a roller 14 in rolling connection with the arc-shaped plate 12 is rotatably connected in the groove, so that the damping effect on the motor 4 mainly depends on the fact that the connecting rod 16 pushes the sliding block 18 to move in the sliding groove part 17 to enable the first torsion spring 19 to generate torsion, the roller 14 is arranged to reduce the friction force between the arc-shaped plate 12 and the fixing ring 9, the action of the connecting rod 16 is more smooth, and a certain positive effect is achieved on the improvement of the damping effect.

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 inserted into the protective shell 1, then the end cover 2 is covered at the opening of the protective shell 1, and then the first threaded hole and the second threaded hole are screwed into the protective shell 1 by bolts, so that the end cover 2 and the protective shell 1 are connected together. The electric motor 4 with the protective shell 1 is arranged on the working position through the lifting lugs 21 on the mounting component 3, and the electric motor 4 is started to be operated. The motor 4 generates heat in the operation process, at this time, the cooling fan 7 in the housing 22 is started, cooling air generated by the operation of the cooling fan 7 flows into the heat conduction groove 6 through the air deflector 8, the cooling air generated by the cooling fan 7 continuously completes heat exchange with the heat in the heat dissipation strip 5 through the heat conduction groove 6, and the air flow completing the heat exchange flows out from the end cover 2.

Motor 4 is in the vibrations state of high-frequency under the running state, protective housing 1 acts on solid fixed ring 9, gu fixed ring 9 shakes the cambered surface that acts on arc 12, make arc 12 carry out anticlockwise rotation through cylinder 14, the anticlockwise rotation of arc 12 promotes sliding block 18 to slide in chute spare 17 through connecting rod 16, and make sliding block 18 produce the anticlockwise rotation of certain angle when sliding, the rotation of sliding block 18 makes first torsion spring 19 produce clockwise torsion, can play the cushioning effect to motor 4's vibrations through this torsion, when damper 11 does not receive vibrations, arc 12 rotates to initial position through second torsion spring 20, and drive sliding block 18 through arc 12 and remove initial position.

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

Claims

1. Three-phase asynchronous motor with high-strength structure, including motor (4), characterized in that, protective housing (1) has been cup jointed in the outside slip of motor (4), protective housing (1) is open structure towards the one end of motor shaft of motor (4), and this uncovered department can dismantle and be connected with end cover (2), the motor shaft of motor (4) passes and extends to outside behind end cover (2), the both sides of motor (4) are formed with heat dissipation strip (5) along its length direction, be formed with heat conduction groove (6) with heat dissipation strip (5) looks adaptation on the inner wall of protective housing (1), the longitudinal section of heat conduction groove (6) is greater than heat dissipation strip (5), protective housing (1) deviates from open one end fixed mounting and has housing (22) that are linked together with protective housing (1), the internally mounted of housing (22) has cooling fan (7), the position department fixed mounting that the inside of protective housing (1) is close to housing (22) has aviation baffle (8), a gap is formed between the air deflector (8) and the port of the protective shell (1), one side of the air deflector (8) facing the opening of the protective shell (1) is planar, one side of the air deflector (8) facing the cooling fan (7) is inclined, and cooling air output by the cooling fan (7) is guided to the heat conducting groove (6) through the air deflector (8).

2. The three-phase asynchronous motor with high strength structure according to claim 1, characterized in that: the outer side of protecting crust (1) and end cover (2) is all fixed mounting has installation component (3), installation component (3) are including solid fixed ring (9) and installation rings (10), gu fixed ring (9) fixed cover on protecting crust (1) is fixed the cup joint in the outside of protecting crust (1), gu fixed ring (9) fixed cup joint on end cover (2) is in the end cover (2) outside, annular distribution has a plurality of lugs (21) on the periphery of installation rings (10), annular distribution has a plurality of damper assembly (11) between solid fixed ring (9) and installation rings (10).

3. The three-phase asynchronous motor with high strength structure according to claim 2, characterized in that: the damping component (11) comprises a limiting frame (13), an arc-shaped plate (12) and a chute piece (17) fixed on the inner side of the installation hanging ring (10), the bottom end of the arc-shaped plate (12) is hinged with the inner side of the installation hanging ring (10), and the hinged part is provided with a second torsion spring (20), the limit frame (13) is fixedly connected with the outer side of the fixed ring (9), the arc-shaped plate (12) bends reversely and extends upwards to extend through the limit frame (13) and then is connected with a baffle (15), one side of the baffle (15) departing from the arc-shaped plate (12) is hinged with two connecting rods (16) which are arranged in parallel, the sliding groove part (17) is connected with a sliding block (18) in a rolling way, the tail ends of the two connecting rods (16) extend downwards along the inclined direction and are connected with the sliding block (18) in an eccentric rotating way, and a first torsion spring (19) is arranged at the rotary connection part of the connecting rod (16) and the sliding block (18).

4. The three-phase asynchronous motor with high-strength structure as recited in claim 3, wherein a groove is formed at a position corresponding to the position of the position-limiting frame (13) on the outer side of the fixed ring (9), and a roller (14) in rolling connection with the arc-shaped plate (12) is rotatably connected in the groove.

5. The three-phase asynchronous motor with high strength structure according to claim 1, characterized in that: one end that protective housing (1) and end cover (2) link to each other is formed with four connection building blocks (23), and the inside of connecting building block (23) link up along the length direction of protective housing (1) and has seted up first screw hole, and the position department that corresponds first screw hole on the terminal surface of end cover (2) is formed with the second screw hole of its looks adaptation, and protective housing (1) and end cover (2) are implanted to first screw hole and second screw hole through the screw and are linked to each other.

6. The three-phase asynchronous motor with a high strength structure according to claim 4, wherein: the specific use method of the shock absorption assembly (11) is as follows: gu fixed ring (9) vibrations act on the cambered surface of arc (12), make arc (12) carry out anticlockwise rotation through cylinder (14), the anticlockwise rotation of arc (12) promotes sliding block (18) through connecting rod (16) and slides in chute spare (17), and make sliding block (18) produce the anticlockwise rotation of certain angle when sliding, the rotation of sliding block (18) makes first torsional spring (19) produce clockwise torsion, can play the cushioning effect to the vibrations of motor (4) through this torsion, when damper (11) do not receive vibrations, arc (12) are rotatory to initial position through second torsional spring (20), and drive sliding block (18) through arc (12) and move to initial position.