CN211880205U

CN211880205U - Electromagnetic braking three-phase asynchronous motor

Info

Publication number: CN211880205U
Application number: CN202020343562.7U
Authority: CN
Inventors: 林云才
Original assignee: Jiangsu Shilin Electric Co ltd
Current assignee: Jiangsu Shilin Electric Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-11-06
Anticipated expiration: 2030-03-18

Abstract

The utility model discloses an electromagnetic braking three-phase asynchronous motor relates to the asynchronous machine field, can produce the vibration, fixed unstable and inconvenient problem of dismantling for the three-phase asynchronous motor who solves among the prior art at work. The utility model discloses a motor casing, including motor casing, coupling box, fastening screw, speed-measuring gear, motor casing, front shroud, housing connecting block, fastening screw, terminal box, stator core, rotor core, speed-measuring gear, radiator fan, bearing are all installed to the internal surface of front shroud and back shroud, and the rear shroud is installed to motor casing's opposite side, and the housing connecting block is all installed to one side of front shroud and rear shroud, the housing connecting block is installed to motor casing's preceding terminal surface, and the inside of housing connecting block and housing connecting block all installs fastening screw, the base is installed to motor casing's lower extreme, and motor casing's rear installs the bracket, the terminal box is installed to motor casing's top, the.

Description

Electromagnetic braking three-phase asynchronous motor

Technical Field

The utility model relates to an asynchronous machine technical field specifically is an electromagnetic braking three-phase asynchronous motor.

Background

The three-phase asynchronous motor is a kind of induction motor, and is a kind of motor powered by 380V three-phase alternating current (120 deg phase difference) connected simultaneously, and because the rotor and stator rotating magnetic field of the three-phase asynchronous motor rotate in the same direction and at different rotating speeds, and there is slip, so called 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, and the rotor winding generates electromotive force and current due to the relative motion between the rotor winding and the magnetic field, and interacts with the magnetic field to generate electromagnetic torque, thus realizing energy conversion.

Compared with a single-phase asynchronous motor, the three-phase asynchronous motor has good running performance, various materials can be saved, the three-phase asynchronous motor can be divided into a cage type asynchronous motor and a winding type asynchronous motor according to different rotor structures, the asynchronous motor of the cage type rotor has a simple structure, reliable running, light weight and low price, and is widely applied, the main defect of the three-phase asynchronous motor is that speed regulation is difficult, a rotor and a stator of the winding type three-phase asynchronous motor are also provided with three-phase windings and are connected with an external rheostat through a slip ring and an electric brush, the starting performance of the motor and the rotating speed of the motor can be improved by adjusting the resistance of the rheostat, the three-phase asynchronous motor can generate vibration in working and is not firm in connection, and the screw connection needs to be unscrewed by a tool during disassembly and assembly to; therefore, the market urgently needs to develop an electromagnetic braking three-phase asynchronous motor to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electromagnetic braking three-phase asynchronous motor to the three-phase asynchronous motor who proposes in solving above-mentioned background art can produce the vibration at work, fixed unstable and inconvenient dismantlement's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electromagnetic braking three-phase asynchronous motor, includes motor casing, the front shroud is installed to motor casing's one side, and motor casing's opposite side installs the back shroud, and the housing connecting block is all installed to one side of front shroud and back shroud, the housing connecting block respectively with front shroud and back shroud welded connection, the casing connecting block is installed to motor casing's preceding terminal surface, casing connecting block and motor casing welded connection, and the inside of casing connecting block and housing connecting block all installs fastening screw, and the housing connecting block passes through fastening screw and casing connecting block fixed connection.

Preferably, the base is installed to motor casing's lower extreme, base and motor casing welded connection, and motor casing's rear installs the bracket, bracket and motor casing welded connection, and one side of bracket installs the fixed orifices, and the fixed orifices sets up structure as an organic whole with the bracket.

Preferably, the terminal box is installed to motor casing's top, and the terminal box extends to inside and motor casing welded connection of motor casing, the internal surface of front shroud and back shroud all is provided with anti-skidding gasket, and front shroud and back shroud all laminate with motor casing through anti-skidding gasket.

Preferably, motor casing's internally mounted has stator core, and three-phase winding is all installed to stator core's both sides, and stator core passes through fixed screw connection with motor casing, and stator core's internally mounted has rotor core, and rotor core's internally mounted has the pivot, and rotor core's both sides all install the rotor conducting bar.

Preferably, the pivot extends to the front shroud outside, the gear that tests the speed is installed to one side of rotor core, and radiator fan is installed to one side of the gear that tests the speed, and the bearing is all installed to one side of radiator fan and pivot, the short circuit ring is all installed to rotor core's both sides.

Preferably, the internal surface of front shroud is provided with the breach, and the breach is provided with a plurality of, and a plurality of breach all sets up structure as an organic whole with the front shroud, and the internally mounted of breach has the filter screen, filter screen and front shroud welded connection, and the mounting panel is installed to the preceding terminal surface of front shroud, and the mounting panel passes through the set screw to be connected with the front shroud, the externally mounted of bearing has the tongue-and-groove, and the bearing passes through tongue-and-groove and mounting panel fixed connection, and the inside of bearing is provided with the through-hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a setting through the front shroud, when needing to dismantle maintenance and repair electromagnetic braking three-phase asynchronous motor, can make front shroud and back shroud carry out the location with motor casing respectively through four housing connecting blocks and casing connecting block and be connected, fastening screw is dismantled to the accessible, make four housing connecting blocks and casing connecting block separate, thereby can dismantle front shroud and back shroud, convenient and practical, and easy operation, through the fixed connected mode in location, can make front shroud and back shroud and motor casing's fixed effect better, the anti-skidding gasket of rethread front shroud and back shroud internal surface, can make the contact surface of front shroud and back shroud improve frictional force, thereby make the motor also can not make the connection slack because of vibrations in the work, and the working strength is improved.

2. The utility model discloses a through the setting of mounting panel, when needs maintain the maintenance to the pivot position, the outside screw of mounting panel is dismantled to the accessible, can take out the front shroud with the mounting panel, dismantles through the screw with the bearing rear end face, can separate with the mounting panel to maintain, can make the rigidity of bearing better through the outside tongue-and-groove of bearing, under the high-speed pivoted state of pivot, also can remain stable, improve operating mass with rated load.

Drawings

Fig. 1 is a front view of an electromagnetic braking three-phase asynchronous motor according to the present invention;

fig. 2 is an internal structure diagram of an electromagnetic braking three-phase asynchronous motor according to the present invention;

fig. 3 is a side view of the front cover of the present invention.

In the figure: 1. a motor housing; 2. a base; 3. a front cover; 4. a rear cover; 5. a housing connecting block; 6. a shell connecting block; 7. fastening screws; 8. a junction box; 9. a bracket; 10. mounting a plate; 11. a rotating shaft; 12. an anti-slip gasket; 13. a stator core; 14. a three-phase winding; 15. a rotor core; 16. a rotor conducting bar; 17. a speed measuring gear; 18. a heat radiation fan; 19. a bearing; 20. a short circuit ring; 21. a notch; 22. filtering with a screen; 23. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: an electromagnetic braking three-phase asynchronous motor comprises a motor shell 1, wherein a front cover 3 is installed on one side of the motor shell 1, a rear cover 4 is installed on the other side of the motor shell 1, a housing connecting block 5 is installed on one side of each of the front cover 3 and the rear cover 4, the housing connecting block 5 is respectively connected with the front cover 3 and the rear cover 4 in a welding mode, a housing connecting block 6 is installed on the front end face of the motor shell 1, the housing connecting block 6 is connected with the motor shell 1 in a welding mode, fastening screws 7 are installed inside the housing connecting block 6 and the housing connecting block 5, the housing connecting block 5 is fixedly connected with the housing connecting block 6 through the fastening screws 7, the front cover 3 and the rear cover 4 can be respectively connected with the motor shell 1 in a positioning mode through the four housing connecting blocks 5 and the housing connecting block 6, the four housing connecting, therefore, the front cover 3 and the rear cover 4 can be disassembled, and the device is convenient and practical.

Further, base 2 is installed to motor casing 1's lower extreme, base 2 and motor casing 1 welded connection, and bracket 9 is installed to motor casing 1's rear, bracket 9 and motor casing 1 welded connection, and the fixed orifices is installed to one side of bracket 9, and the fixed orifices sets up structure as an organic whole with bracket 9, makes things convenient for motor casing 1 to fix through bracket 9 and base 2 and settles.

Further, terminal box 8 is installed to the top of motor casing 1, terminal box 8 extends to inside and motor casing 1 welded connection of motor casing 1, the internal surface of front shroud 3 and back shroud 4 all is provided with anti-skidding gasket 12, and front shroud 3 and back shroud 4 all laminate with motor casing 1 through anti-skidding gasket 12, through the anti-skidding gasket 12 of front shroud 3 and 4 internal surfaces of back shroud, can make the contact surface of front shroud 3 and back shroud 4 improve frictional force, thereby make the motor also can not make the connection slack because of vibrations at work.

Further, the internally mounted of motor casing 1 has stator core 13, and three-phase winding 14 is all installed to stator core 13's both sides, and stator core 13 passes through fixed screw connection with motor casing 1, and the internally mounted of stator core 13 has rotor core 15, and the internally mounted of rotor core 15 has pivot 11, and rotor conducting bar 16 is all installed to the both sides of rotor core 15.

Further, the rotating shaft 11 extends to the outside of the front cover 3, the speed measuring gear 17 is installed on one side of the rotor core 15, the heat dissipating fan 18 is installed on one side of the speed measuring gear 17, the bearings 19 are installed on the heat dissipating fan 18 and one side of the rotating shaft 11, and the short circuit rings 20 are installed on both sides of the rotor core 15.

Further, the internal surface of front shroud 3 is provided with breach 21, breach 21 is provided with a plurality of, and a plurality of breach 21 all sets up structure as an organic whole with front shroud 3, and the internally mounted of breach 21 has filter screen 22, filter screen 22 and front shroud 3 welded connection, mounting panel 10 is installed to the preceding terminal surface of front shroud 3, mounting panel 10 is connected with front shroud 3 through the set screw, the externally mounted of bearing 19 has the tongue-and-groove, bearing 19 passes through tongue-and-groove and mounting panel 10 fixed connection, and bearing 19's inside is provided with through-hole 23, can make the weight reduction of front shroud 3 through a plurality of breach 21, and make the air circulation have, reduce the inside temperature of motor casing 1, thereby improve operating mass.

The working principle is as follows: when the electromagnetic braking three-phase asynchronous motor is used, when the electromagnetic braking three-phase asynchronous motor needs to be installed, the front cover 3 and the rear cover 4 can be respectively connected with the motor shell 1 in a positioning mode through the four housing connecting blocks 5 and the shell connecting block 6, the fixing effect of the front cover 3 and the rear cover 4 and the motor shell 1 can be better through the connecting mode of positioning and fixing, the friction force of the contact surface of the front cover 3 and the rear cover 4 can be improved through the anti-skidding gaskets 12 on the inner surfaces of the front cover 3 and the rear cover 4, so that the motor can not be loosened in connection due to vibration in work, the weight of the front cover 3 can be reduced through the matching of the plurality of gaps 21 and the radiating fan 18, the air has the circulation property, the temperature inside the motor shell 1 is reduced, the working quality is improved, when the electromagnetic braking three-phase asynchronous motor is disassembled, the fastening screws 7 can be disassembled, so that the four housing connecting blocks 5 and the shell connecting, thereby can dismantle front shroud 3 and after-hood 4, the accessible is dismantled the outside screw of mounting panel 10, can take out front shroud 3 with mounting panel 10, through dismantling the screw of bearing 19 rear end face, can separate with mounting panel 10 to maintain, can make the rigidity of bearing 19 better through the outside tongue-and-groove of bearing 19, under the high-speed pivoted state of pivot 11, also can keep stability.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An electromagnetic braking three-phase asynchronous motor comprising a motor housing (1), characterized in that: front shroud (3) are installed to one side of motor casing (1), and rear shroud (4) are installed to the opposite side of motor casing (1), and housing connecting block (5) are all installed to one side of front shroud (3) and rear shroud (4), and housing connecting block (5) respectively with front shroud (3) and rear shroud (4) welded connection, casing connecting block (6) are installed to the preceding terminal surface of motor casing (1), and casing connecting block (6) and motor casing (1) welded connection, and the inside of casing connecting block (6) and housing connecting block (5) all installs fastening screw (7), and housing connecting block (5) are through fastening screw (7) and casing connecting block (6) fixed connection.

2. An electromagnetic braking three-phase asynchronous motor, according to claim 1, characterized in that: base (2) are installed to the lower extreme of motor casing (1), base (2) and motor casing (1) welded connection, and bracket (9) are installed to the rear of motor casing (1), bracket (9) and motor casing (1) welded connection, and the fixed orifices is installed to one side of bracket (9), and the fixed orifices sets up structure as an organic whole with bracket (9).

3. An electromagnetic braking three-phase asynchronous motor, according to claim 1, characterized in that: junction box (8) are installed to the top of motor casing (1), and junction box (8) extend to inside and motor casing (1) welded connection of motor casing (1), the internal surface of front shroud (3) and back shroud (4) all is provided with anti-skidding gasket (12), and front shroud (3) and back shroud (4) all laminate with motor casing (1) through anti-skidding gasket (12).

4. An electromagnetic braking three-phase asynchronous motor, according to claim 3, characterized in that: the motor casing (1) internally mounted has stator core (13), and three-phase winding (14) are all installed to the both sides of stator core (13), and stator core (13) pass through fixed screw connection with motor casing (1), and the internally mounted of stator core (13) has rotor core (15), and the internally mounted of rotor core (15) has pivot (11), and rotor conducting bar (16) are all installed to the both sides of rotor core (15).

5. An electromagnetic braking three-phase asynchronous motor, according to claim 4, characterized in that: pivot (11) extend to the front shroud (3) outside, gear (17) that tests the speed is installed to one side of rotor core (15), and radiator fan (18) are installed to one side of gear (17) that tests the speed, and bearing (19) are all installed to one side of radiator fan (18) and pivot (11), short circuit ring (20) are all installed to the both sides of rotor core (15).

6. An electromagnetic braking three-phase asynchronous motor, according to claim 5, characterized in that: the internal surface of front shroud (3) is provided with breach (21), and breach (21) are provided with a plurality of, and a plurality of breach (21) all sets up structure as an organic whole with front shroud (3), and the internally mounted of breach (21) has filter screen (22), filter screen (22) and front shroud (3) welded connection, and mounting panel (10) are installed to the preceding terminal surface of front shroud (3), and mounting panel (10) are connected with front shroud (3) through the set screw, the externally mounted of bearing (19) has the tongue-and-groove, and bearing (19) pass through tongue-and-groove and mounting panel (10) fixed connection, and the inside of bearing (19) is provided with through-hole (23).