CN212258694U

CN212258694U - Frequency-conversion speed-regulation three-phase asynchronous motor

Info

Publication number: CN212258694U
Application number: CN202021163748.0U
Authority: CN
Inventors: 张江; 解淑芹
Original assignee: Rongcheng Yineng Motors Co ltd
Current assignee: Rongcheng Yineng Motors Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-12-29
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to the technical field of motors, in particular to a variable-frequency speed-regulating three-phase asynchronous motor, which has high heat dissipation efficiency, can continue to dissipate heat of the motor after the motor stops working until the waste heat of the motor is completely dissipated, enhances the reliability and the safety of the motor, and prolongs the service life of the motor; including the pivot, the casing, the frame, a stator, the rotor, a cooling cylinder, cooling coil, coolant tank, the multiunit cooling tube, cooling water pump, the multiunit heat insulating board, the protection casing, axial fan and set screw, a cooling cylinder and casing suit, be provided with the cooling chamber between a cooling cylinder and the casing, cooling coil is located the cooling intracavity, the left part of the rear end of a cooling cylinder is provided with the apopore, the right part of the rear end of a cooling cylinder is provided with the water inlet, cooling coil's both ends are connected with apopore and water inlet respectively, the apopore passes through the cooling tube with coolant tank and is connected, the water inlet passes through the cooling tube with cooling water pump's output.

Description

Frequency-conversion speed-regulation three-phase asynchronous motor

Technical Field

The utility model relates to a technical field of motor especially relates to a variable frequency speed governing three-phase asynchronous motor.

Background

As is well known, the electrical equipment for realizing the interconversion between electrical energy and mechanical energy is generally called as a motor, the motor realizes the interconversion between electrical energy and mechanical energy by utilizing the electromagnetic induction principle, the equipment for converting mechanical energy into electrical energy is called as a generator, the equipment for converting electrical energy into mechanical energy is called as a motor, the alternating current motor, in particular a three-phase asynchronous motor is mainly used in production, and the three-phase asynchronous motor is usually required to be regulated in use because the three-phase asynchronous motor has the advantages of simple structure, firmness and durability, reliable operation, low price, convenient maintenance and the like, and is widely used for driving various metal cutting machine tools, cranes, forging presses, conveyor belts, casting machines, ventilators with low power, water pumps and the like, wherein the variable frequency speed regulation is a commonly used speed regulation; the existing variable-frequency speed-regulating motor comprises a rotating shaft, a shell, a base, a stator and a rotor, wherein a rotating cavity is arranged in the shell, the side wall of the rotating cavity is connected with the stator, the rotating shaft penetrates through the left end and the right end of the shell, the rotor is positioned in the rotating cavity and sleeved with the rotating shaft, and the bottom end of the shell is connected with the top end of the base; the existing variable-frequency speed-regulating motor is discovered in use, a heat dissipation device of the motor only comprises a heat dissipation fan at one end of the motor, a rotating shaft of the heat dissipation fan and a rotating shaft of the motor are the same rotating shaft, when the motor runs, the heat dissipation fan works, when the motor is turned off, the heat dissipation fan stops working, but after the motor works for a long time, heat in the motor is large, if the motor stops heat dissipation too early, long time is needed by the motor to dissipate heat by the motor, the motor can be damaged, and even personnel can be scalded carelessly.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides a radiating efficiency is high, after the motor stop work, still can continue the heat dissipation to the motor, and it is clean to all disperse of waste heat of motor, has strengthened the reliability and the security of motor, has prolonged the life's of motor a variable frequency speed control three-phase asynchronous motor.

In order to achieve the above object, the utility model provides a following technical scheme: a variable-frequency speed-regulating three-phase asynchronous motor comprises a rotating shaft, a shell, a base, a stator and a rotor, wherein a rotating cavity is arranged in the shell, the side wall of the rotating cavity is connected with the stator, the rotating shaft penetrates through the left end and the right end of the shell, the rotor is positioned in the rotating cavity and sleeved with the rotating shaft, and the bottom end of the shell is connected with the top end of the base; the cooling device is characterized by further comprising a cooling cylinder, a cooling coil, a cooling water tank, a plurality of groups of cooling pipes, a cooling water pump, a plurality of groups of heat insulation plates, a protective cover, an axial flow fan and a positioning screw, wherein the cooling cylinder is sleeved with the casing, a cooling cavity is arranged between the cooling cylinder and the casing, the cooling coil is positioned in the cooling cavity, a water outlet hole is formed in the left part of the rear end of the cooling cylinder, a water inlet is formed in the right part of the rear end of the cooling cylinder, two ends of the cooling coil are respectively connected with the water outlet hole and the water inlet, the water outlet hole is connected with the cooling water tank through the cooling pipe, the water inlet is connected with the output end of the cooling water pump through the cooling pipe, the input end of the cooling water pump is connected with the cooling water tank through the cooling pipe, a plurality of groups of heat dissipation holes are formed in the front, the upper portion and the lower part of heat insulating board respectively with the multiunit spout sliding connection, axial fan includes locating sleeve and multiunit flabellum, the locating sleeve with the left part suit of pivot, the left part of pivot is provided with the locating hole, the set screw spiral shell dress passes the locating sleeve injects in the locating hole, the flabellum equipartition in locating sleeve's lateral wall, the right-hand member of protection casing with the left end of cooling cylinder is connected.

Preferably, the outer sides of the left ends of the multiple groups of heat insulation plates are provided with pulling blocks, and the multiple groups of pulling blocks are respectively positioned in the multiple groups of heat dissipation holes.

Preferably, still include multiunit fixed plate and multiunit set screw, the multiunit the left end of fixed plate all with the right-hand member of protection casing is connected, the outer wall of the left part of cooling cylinder is provided with the fixed screw of multiunit, the multiunit set screw passes the multiunit respectively the fixed plate with the multiunit fixed screw spiral shell dress.

Preferably, the left end of the protective cover is provided with a plurality of groups of net-shaped heat dissipation holes.

Preferably, the four-group cooling device further comprises four groups of supporting legs, wherein the four groups of supporting legs comprise connecting columns, damping springs, positioning columns, connecting plates and connecting legs, the bottom ends of the four groups of connecting legs are respectively connected with four corner position areas on the top end of the machine base, the four groups of connecting legs are respectively provided with damping cavities, the bottom ends of the four groups of damping springs are respectively connected with four groups of lower walls of the damping cavities, the top ends of the four groups of damping springs are respectively connected with the bottom ends of the four groups of connecting columns, the top ends of the four groups of connecting columns are respectively connected with four groups of connecting legs, the top ends of the four groups of positioning columns respectively penetrate through the four groups of damping springs and the four groups of connecting plates to extend into the four groups of positioning holes, and the top ends of the four groups of connecting columns respectively penetrate through the cooling cylinders to be connected with the four corner position areas on the bottom end of.

Preferably, the upper parts of the side walls of the four groups of damping cavities are respectively provided with a limiting ring, and the bottom ends of the four groups of limiting rings are respectively clung to the edge areas of the top ends of the four groups of connecting plates.

Preferably, still include the navigation key, the right part of the lateral wall of pivot is provided with the constant head tank, the navigation key with constant head tank sliding connection.

Preferably, still include rings, the top of casing is provided with the screw, the bottom of rings is provided with the screw thread post, the screw thread post with screw spiral shell dress.

The utility model has the advantages that:

compared with the prior art, the utility model provides a variable frequency speed governing three-phase asynchronous motor possesses following beneficial effect: when the motor works, the rotating shaft rotates to drive the axial flow fan to rotate, the axial flow fan dissipates heat of the motor by driving the air flow at the left end of the shell to flow, a user can move the heat shield along the sliding groove to open the heat dissipation holes, the heat dissipation holes can accelerate the air circulation in the cooling cavity and accelerate the heat dissipation efficiency of the motor, when the external environment of the motor contains more impurities, the user can close the heat dissipation holes through the heat insulation plate to prevent the external impurities from entering the cooling cavity, the user starts the cooling water pump, the cooling water pump drives the cooling water to circularly flow among the cooling coil, the cooling water pump and the cooling water tank, the cooling water absorbs the heat dissipated into the cooling cavity by the shell in the cooling coil to accelerate the heat dissipation of the motor, and after the motor is closed, the cooling water continues to cool and dissipate the heat of the motor, prevent that the waste heat of motor from damaging the motor or even scalding personnel, reached the radiating efficiency high, after the motor stop work, still can continue the heat dissipation to the motor, it is clean to all disperse of waste heat of motor, has strengthened the reliability and the security of motor, has prolonged the life of motor.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

fig. 3 is a schematic left-side sectional structure of the present invention;

fig. 4 is a schematic top view of the present invention.

In the drawings, the reference numbers: 1. a rotating shaft; 2. a housing; 3. a machine base; 4. a stator; 5. a rotor; 6. a cooling cylinder; 7. a cooling coil; 8. a cooling water tank; 9. a cooling tube; 10. a cooling water pump; 11. a heat insulation plate; 12. a protective cover; 13. a set screw; 14. a water outlet hole; 15. a water inlet; 16. a chute; 17. a positioning sleeve; 18. a fan blade; 19. pulling a block; 20. a fixing plate; 21. a set screw; 22. mesh heat dissipation holes; 23. connecting columns; 24. a damping spring; 25. a positioning column; 26. a connecting plate; 27. a connecting leg; 28. a limiting ring; 29. a positioning key; 30. a hoisting ring; 31. a threaded post.

Detailed Description

As shown in fig. 1-4, the present invention comprises a rotating shaft 1, a casing 2, a base 3, a stator 4 and a rotor 5, wherein a rotating cavity is arranged in the casing 2, a side wall of the rotating cavity is connected with the stator 4, the rotating shaft 1 passes through the left end and the right end of the casing 2, the rotor 5 is positioned in the rotating cavity and is sleeved with the rotating shaft 1, and the bottom end of the casing 2 is connected with the top end of the base 3; the cooling device is characterized by further comprising a cooling cylinder 6, a cooling coil 7, a cooling water tank 8, a plurality of groups of cooling pipes 9, a cooling water pump 10, a plurality of groups of heat insulation plates 11, a protective cover 12, an axial flow fan and a positioning screw 13, wherein the cooling cylinder 6 is sleeved with the casing 2, a cooling cavity is arranged between the cooling cylinder 6 and the casing 2, the cooling coil 7 is positioned in the cooling cavity, a water outlet 14 is arranged at the left part of the rear end of the cooling cylinder 6, a water inlet 15 is arranged at the right part of the rear end of the cooling cylinder 6, two ends of the cooling coil 7 are respectively connected with the water outlet 14 and the water inlet 15, the water outlet 14 is connected with the cooling water tank 8 through the cooling pipe 9, the water inlet 15 is connected with the output end of the cooling water pump 10 through the cooling pipe 9, and the input end of the cooling water pump 10 is connected, the front end and the rear end of the cooling cylinder 6 are respectively provided with a plurality of groups of heat dissipation holes, the upper parts and the lower parts of the inner sides of the plurality of groups of heat dissipation holes are respectively provided with a sliding groove 16, the upper parts and the lower parts of the plurality of groups of heat insulation plates 11 are respectively connected with the plurality of groups of sliding grooves 16 in a sliding manner, the axial flow fan comprises a positioning sleeve 17 and a plurality of groups of fan blades 18, the positioning sleeve 17 is sleeved with the left part of the rotating shaft 1, the left part of the rotating shaft 1 is provided with a positioning hole, a positioning screw 13 penetrates through the positioning sleeve 17 in a screwed manner to be inserted into the positioning hole, the fan blades 18 are uniformly distributed on the side wall of the positioning sleeve; when the motor works, the rotating shaft 1 rotates to drive the axial flow fan to rotate, the axial flow fan dissipates heat of the motor by driving the air flow at the left end of the shell 2, a user can move the heat shield plate along the sliding groove 16 to open the heat dissipation holes, the heat dissipation holes can accelerate the air circulation in the cooling cavity and accelerate the heat dissipation efficiency of the motor, when the external environment of the motor contains more impurities, the user can close the heat dissipation holes through the heat shield plate 11 to prevent the external impurities from entering the cooling cavity, the user starts the cooling water pump 10, the cooling water pump 10 drives the cooling water to circularly flow among the cooling coil 7, the cooling water pump 10 and the cooling water tank 8, the cooling water absorbs the heat dissipated into the cooling cavity by the shell 2 in the cooling coil 7 to accelerate the heat dissipation of the motor, and after the motor is closed, the cooling water continues to cool and dissipate the heat of the motor, and, prevent that the waste heat of motor from damaging the motor or even scalding personnel, reached the radiating efficiency high, after the motor stop work, still can continue the heat dissipation to the motor, it is clean to all disperse of waste heat of motor, has strengthened the reliability and the security of motor, has prolonged the life of motor.

Referring to fig. 1-4, in the present invention, a plurality of sets of pulling blocks 19 are disposed outside the left ends of the heat insulation boards 11, and the plurality of sets of pulling blocks 19 are respectively located in the plurality of sets of heat dissipation holes; the user can move the heat insulation plate 11 by pulling the pulling block 19, which enhances the convenience and practicability of the motor.

Referring to fig. 1-4, the present invention further includes a plurality of fixing plates 20 and a plurality of fixing screws 21, wherein the left ends of the plurality of fixing plates 20 are connected to the right end of the protecting cover 12, the outer wall of the left portion of the cooling cylinder 6 is provided with a plurality of fixing screws, and the plurality of fixing screws 21 respectively pass through the plurality of fixing plates 20 and are screwed with the plurality of fixing screws; the user can install fixed protection casing 12 through fixed plate 20 and set screw 21, can prevent that protection casing 12 is unexpected to drop, and when dismantling protection casing 12, the user unscrews set screw 21, then just can take off protection casing 12, and the convenience and the stability of motor have been strengthened to the dismantlement and the installation of the protection casing 12 of being convenient for.

Referring to fig. 1-4, the left end of the protection cover 12 of the present invention is provided with a plurality of sets of meshed heat dissipation holes 22, so that when the axial fan rotates, the heat can be dissipated through the meshed heat dissipation holes 22, thereby accelerating the air circulation in the protection cover 12 and enhancing the heat dissipation performance of the motor.

Referring to fig. 1-4, the present invention further comprises four sets of support legs, each of the four sets of support legs comprises a connection post 23, a damping spring 24, a positioning post 25, a connection plate 26 and a connection leg 27, the bottom ends of the four sets of connection legs 27 are respectively connected to four corner positions of the top end of the base 3, each of the four sets of connection legs 27 is provided with a damping chamber, the bottom ends of the four sets of damping springs 24 are respectively connected to the lower walls of the four sets of damping chambers, the top ends of the four sets of damping springs 24 are respectively connected to the bottom ends of the four sets of connection plates 26, the top ends of the four sets of connection plates 26 are respectively connected to the bottom ends of the four sets of connection posts 23, each of the bottom ends of the four sets of connection posts 23 is provided with a positioning hole, the bottom ends of the four sets of positioning posts 25 are respectively connected to the top ends of the four sets of connection legs, the top ends of the four groups of connecting columns 23 respectively penetrate through the cooling cylinder 6 to be connected with four corner positions of the bottom end of the machine shell 2; when the motor operates, vibration can be generated, the base 3 is easy to loosen under the condition of long-time vibration, the motor is easy to damage, the shell 2 is connected with the base 3 through the supporting legs, and when the vibration of the shell 2 is transmitted to the base 3, a part of the vibration is absorbed by the damping spring 24, so that the vibration received by the base 3 is small, the possibility of damage of the motor is reduced, and the stability and the reliability of the motor are enhanced.

Referring to fig. 1-4, in the present invention, the upper portion of the side wall of the four damping cavities is provided with a limiting ring 28, the bottom ends of the limiting rings 28 of the four damping cavities are respectively attached to the edge area of the top end of the four connecting plates 26, the limiting ring 28 can prevent the bottom end of the connecting column 23 from separating from the damping cavity, and the reliability of the motor is enhanced.

Referring to fig. 1-4, the present invention further includes a positioning key 29, the right portion of the sidewall of the rotating shaft 1 is provided with a positioning groove, the positioning key 29 is slidably connected to the positioning groove, so that the right portion of the rotating shaft 1 is more firmly connected to other devices, and the reliability of the motor is enhanced.

Referring to fig. 1-4, the utility model discloses, still include rings 30, the top of casing 2 is provided with the screw, rings 30's bottom is provided with threaded post 31, threaded post 31 with screw spiral shell dress, the user can lift or hoist and mount the motor through rings 30, and threaded post 31 has then made things convenient for rings 30's change and dismantlement, has strengthened the reliability and the convenience of motor.

When the cooling water pump is used, a user firstly conveys the motor to a working place through the hanging ring 30, then the connection condition of each part of the motor is checked, the protective cover 12 is connected with the cooling cylinder 6 through the fixing screw 21 and the fixing plate 20, the machine base 3 is connected with the machine shell 2 through the supporting leg, then the right part of the rotating shaft 1 is fixedly connected with other devices through the positioning key 29, whether the heat insulation plate 11 is opened or not is judged according to the external environment, when the impurities such as external dust are less, the heat insulation plate 11 is opened by pulling the pull block 19, when the impurities such as external impurities are more, the heat insulation plate 11 is not opened, then the motor is started, the cooling water pump 10 is started to cool and dissipate heat the motor, when the motor is used, the motor continues to dissipate heat through cooling water until.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

However, the above embodiments are only examples of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims.

Claims

1. A variable-frequency speed-regulating three-phase asynchronous motor comprises a rotating shaft (1), a casing (2), a base (3), a stator (4) and a rotor (5), wherein a rotating cavity is arranged in the casing (2), the side wall of the rotating cavity is connected with the stator (4), the rotating shaft (1) penetrates through the left end and the right end of the casing (2), the rotor (5) is positioned in the rotating cavity and is sleeved with the rotating shaft (1), and the bottom end of the casing (2) is connected with the top end of the base (3); the cooling device is characterized by further comprising a cooling cylinder (6), a cooling coil (7), a cooling water tank (8), a plurality of groups of cooling pipes (9), a cooling water pump (10), a plurality of groups of heat insulation plates (11), a protective cover (12), an axial flow fan and a positioning screw (13), wherein the cooling cylinder (6) is sleeved with the casing (2), a cooling cavity is arranged between the cooling cylinder (6) and the casing (2), the cooling coil (7) is positioned in the cooling cavity, a water outlet hole (14) is formed in the left part of the rear end of the cooling cylinder (6), a water inlet (15) is formed in the right part of the rear end of the cooling cylinder (6), two ends of the cooling coil (7) are respectively connected with the water outlet hole (14) and the water inlet (15), the water outlet hole (14) is connected with the cooling water tank (8) through the cooling pipe (9), the water inlet (15) is connected with the output end of the cooling water pump (10) through the cooling pipe (9), the input end of the cooling water pump (10) is connected with the cooling water tank (8) through the cooling pipe (9), the front end and the rear end of the cooling cylinder (6) are respectively provided with a plurality of groups of heat dissipation holes, the upper parts and the lower parts of the inner sides of the plurality of groups of heat dissipation holes are respectively provided with a sliding groove (16), the upper parts and the lower parts of the plurality of groups of heat insulation plates (11) are respectively connected with the plurality of groups of sliding grooves (16) in a sliding way, the axial flow fan comprises a positioning sleeve (17) and a plurality of groups of fan blades (18), the positioning sleeve (17) is sleeved with the left part of the rotating shaft (1), a positioning hole is arranged at the left part of the rotating shaft (1), the positioning screw (13) is screwed and penetrates through the positioning sleeve (17) to be inserted into the positioning hole, flabellum (18) equipartition in the lateral wall of position sleeve (17), the right-hand member of protection casing (12) with the left end of cooling cylinder (6) is connected.

2. The variable-frequency speed-regulating three-phase asynchronous motor according to claim 1, wherein a plurality of groups of spanner blocks (19) are arranged on the outer sides of the left ends of the heat insulation plates (11), and the plurality of groups of spanner blocks (19) are respectively positioned in the plurality of groups of heat dissipation holes.

3. The variable-frequency speed-regulating three-phase asynchronous motor according to claim 2, further comprising a plurality of groups of fixing plates (20) and a plurality of groups of fixing screws (21), wherein the left ends of the groups of fixing plates (20) are connected with the right end of the protective cover (12), the outer wall of the left part of the cooling cylinder (6) is provided with a plurality of groups of fixing screw holes, and the groups of fixing screws (21) respectively penetrate through the groups of fixing plates and the groups of fixing screw holes to be screwed.

4. A variable frequency speed-regulating three-phase asynchronous motor according to claim 3, characterized in that the left end of the shield (12) is provided with multiple sets of meshed heat dissipation holes (22).

5. The variable-frequency speed-regulating three-phase asynchronous motor according to claim 4, further comprising four sets of supporting legs, wherein each of the four sets of supporting legs comprises a connecting column (23), a damping spring (24), a positioning column (25), a connecting plate (26) and a connecting leg (27), the bottom ends of the four sets of connecting legs (27) are respectively connected with four corner positions of the top end of the motor base (3), each of the four sets of connecting legs (27) is provided with a damping cavity, the bottom ends of the four sets of damping springs (24) are respectively connected with the lower walls of the four sets of damping cavities, the top ends of the four sets of damping springs (24) are respectively connected with the bottom ends of the four sets of connecting plates (26), the top ends of the four sets of connecting plates (26) are respectively connected with the bottom ends of the four sets of connecting columns (23), the bottom ends of the four sets of connecting columns (23) are respectively provided with positioning holes, and the bottom ends of the four sets, the top ends of the four groups of positioning columns (25) penetrate through the four groups of damping springs (24) and the four groups of connecting plates (26) respectively and extend into the four groups of positioning holes, and the top ends of the four groups of connecting columns (23) penetrate through the cooling cylinder (6) respectively and are connected with four corner positions of the bottom end of the machine shell (2).

6. The variable-frequency speed-regulating three-phase asynchronous motor according to claim 5, wherein the upper parts of the side walls of the four groups of damping cavities are respectively provided with a limiting ring (28), and the bottom ends of the four groups of limiting rings (28) are respectively clung to the edge areas of the top ends of the four groups of connecting plates (26).

7. A variable-frequency speed-regulating three-phase asynchronous motor according to claim 6, characterized by further comprising a positioning key (29), wherein a positioning groove is arranged at the right part of the side wall of the rotating shaft (1), and the positioning key (29) is slidably connected with the positioning groove.

8. The variable-frequency speed-regulating three-phase asynchronous motor according to claim 7, further comprising a lifting ring (30), wherein a screw hole is formed in the top end of the casing (2), a threaded column (31) is arranged at the bottom end of the lifting ring (30), and the threaded column (31) is screwed with the screw hole.