High-efficiency anti-demagnetization special stirring motor

Abstract

The invention relates to an efficient anti-demagnetization motor special for stirring. The efficient anti-demagnetization motor comprises a machine base and a ventilation box. The bearing seat is embedded into the left end of the machine base, the flanges are fixed to the left end of the bearing seat and the left end of the machine base, the motor rotating shaft is movably installed on the inner side of the bearing seat, the rotor is arranged in the middle of the motor rotating shaft, hollow cavity pipelines are distributed on the periphery of the rotor at equal intervals, and the permanent magnet is embedded into the inner side of the rotor. According to the high-efficiency anti-demagnetization motor special for stirring, on the basis of inner and outer air paths of a common stirring motor, a composite air path is adopted to greatly increase the heat exchange area of the inner and outer circulation air paths, and then the heat exchange capacity potential of the inner and outer fans is fully utilized. The heat exchange area of the inner and outer circulating air paths is highly matched with the heat exchange capacity of the inner and outer fans, so that the heat exchange capacity of the motor is improved, the power density of the motor is improved, the heat dissipation capacity of the stirring motor is improved, and the demagnetization resistance of the stirring motor is improved.

Description

Technical Field

[0001] The invention relates to the technical field of stirring motors, in particular to a high-efficiency demagnetization-resistant special stirring motor. Background Art

[0002] Stirring is a kind of circulation through the agitator, so that the gas, liquid and even suspended particles in the solution can be mixed evenly. In order to achieve this goal, it is necessary to use a device that forces convection and even mixing, that is, the internal components of the agitator. When the agitator is running, it is often necessary to use a motor to drive the agitator, so that the agitator moves.

[0003] For example, the document with publication number CN116599276A discloses a permanent magnet synchronous drive motor with low demagnetization resistance and leakage. The invention can effectively solve the problem that the rotating shaft of the existing permanent magnet synchronous drive motor for ships is not convenient to automatically clean the pollutants on the outside of the wind hood when driving the fan blades to perform auxiliary rotation and heat dissipation, which makes it easy for pollutants to block the wind hood and affect heat dissipation. The electric telescopic rod in the rotating rod can push the block to engage in the slot on the rotating shaft, so that the brush plate can be driven to rotate and clean the wind hood when the rotating shaft drives the fan blades to dissipate heat, thereby enriching the structure of the device and ensuring the normal performance of the heat dissipation work. On the other hand, the rotating fan blades can extract the airflow blown into the annular ventilation duct by the supplementary blowing component for cooling and heat dissipation to the outside, thereby promoting air circulation inside and outside the device, and then ensuring the normal operation of the device.

[0004] However, during the use of the stirring motor, the heat dissipation performance of the motor directly affects the output efficiency of the motor, and continuous high temperature will also cause the motor to demagnetize. Based on this, the present application proposes a high-efficiency, demagnetization-resistant stirring motor. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In order to solve the above technical problems, the present invention provides a special stirring motor with high efficiency and anti-demagnetization performance. The inner and outer main air paths of the stirring motor are upgraded, that is, a composite air path is opened in the inner and outer air paths, so as to improve the heat dissipation capacity of the stirring motor and thus increase the anti-demagnetization ability of the stirring motor.

[0007] 2) Technical solution

[0008] Based on this, the present invention provides the following technical solution: a high-efficiency anti-demagnetization special stirring motor, comprising a base and a ventilation box;

[0009] A bearing seat is embedded and installed at the left end of the machine base, a flange is fixed at the left end of the bearing seat and the left end of the machine base, a motor rotating shaft is movably installed inside the bearing seat, a rotor is arranged in the middle of the motor rotating shaft, hollow cavity pipes are evenly distributed around the rotor, and a permanent magnet is embedded inside the rotor;

[0010] The motor shaft is connected to the middle of the inner fan by transmission, four groups of ventilation boxes are evenly distributed around the base, a heat dissipation pipe is embedded inside the ventilation box, an outer fan is installed at the right end of the motor shaft, and a wind shield is fixed at the right end of the base;

[0011] An air guide mechanism is provided at the inner upper end of the wind cover, an inner air inlet and an inner air outlet are provided on the left and right sides of the machine base, a stator core is provided on the inner wall of the machine base, a magnetic attracting ring is distributed circumferentially on the surface of the stator core, and heat dissipation ribs are distributed circumferentially and equidistantly on the surface of the machine base;

[0012] The heat dissipation pipes are distributed in an arc shape along the interior of the ventilation box, with two rows in total. The left and right end walls of the two groups of heat dissipation pipes are bonded together using expansion glue, and the heat dissipation pipes and the inner wall of the ventilation box are bonded together using expansion glue. A guide plate is provided at the left end of the heat dissipation pipe, and support rods are relatively provided on the upper and lower sides of the guide plate, and the support rods are embedded in the inner side of the expansion glue for fixation.

[0013] Preferably, a junction box is connected to the ventilation box located at the upper left corner of the base.

[0014] Preferably, a tube bracket is welded and fixed between the two groups of heat dissipation ribs, and two groups of tube brackets are provided in total, and a cooling tube is fixed to the upper end of each tube bracket.

[0015] Preferably, the air guide mechanism includes a receiving rod, a receiving seat, a guide seat, a guide plate, a rotating mechanism, a gear, and a rack. The right end of the receiving rod is fixed to the wind cover, and the left end of the receiving rod is hinged to the receiving seat. A guide seat is fixed to the left side of the upper end of the receiving seat. The inner side of the guide seat is slidably matched with the guide plate. A rotating mechanism is provided in the middle part of the receiving seat, and the rotating mechanism is connected to the middle part of the gear. The gear is engaged with the rack, and the rack is fixed to the right end of the guide plate.

[0016] Preferably, an arc frame is provided at the right end of the guide seat, and the surface of the arc frame is smooth.

[0017] Preferably, two groups of guide seats are provided, and another group of guide seats is provided on the right side of the lower end of the receiving seat, and the two groups of guide seats are distributed symmetrically.

[0018] Preferably, a guide plate and a rack are provided in the guide seat located on the right side of the lower end of the receiving seat.

[0019] Preferably, the guide plate and the rack are both arc-shaped structures.

[0020] Preferably, the rotating mechanism includes a positioning button, a movable rod, and a locking button. The movable rod passes through the middle of the receiving seat, and the locking button and the positioning button are relatively distributed on the left and right sides of the movable rod. The movable rod is connected to the gear transmission, and the locking button is threadedly matched with the left end of the movable rod, and the positioning button and the locking button are respectively located at the front and rear ends of the receiving seat.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the present invention provides a high-efficiency anti-demagnetization special stirring motor, which has the following beneficial effects:

[0023] This high-efficiency anti-demagnetization special stirring motor uses a composite air path on the basis of the inner and outer air paths of ordinary stirring motors to greatly increase the heat exchange area of ​​the inner and outer circulation air paths, thereby fully utilizing the heat exchange capacity potential of the inner and outer fans. The heat exchange capacity of the motor is increased by highly matching the heat exchange area of ​​the inner and outer circulation air paths with the heat exchange capacity of the inner and outer fans, thereby increasing the power density of the motor, improving the heat dissipation capacity of the stirring motor, and thus increasing the anti-demagnetization ability of the stirring motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 A is an enlarged structural diagram;

[0026] Figure 3 It is a front view structural schematic diagram of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the ventilation box of the present invention;

[0028] Figure 5 It is a schematic diagram of the heat dissipation pipe structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the cross-sectional structure of the heat dissipation rib of the present invention;

[0030] Figure 7 This is a schematic diagram of the plane structure of the air guide mechanism of the present invention;

[0031] Figure 8 This is a schematic diagram of the internal structure of the air guide mechanism of the present invention;

[0032] Fig. 9 It is a schematic diagram of the cross-sectional structure of the rotating mechanism of the present invention.

[0033] In the figure: base 1, bearing seat 2, flange 3, motor rotating shaft 4, hollow cavity pipe 5, inner fan 6, ventilation box 7, heat dissipation pipe 8, outer fan 9, air guide mechanism 10, wind cover 11, inner air inlet 12, inner air outlet 13, stator core 14, heat dissipation rib 15, junction box 16, expansion tube glue 81, support rod 82, guide plate 83, pipe bracket 151, cooling pipe 152, receiving rod 101, receiving seat 102, guide seat 103, guide plate 104, rotating mechanism 105, gear 106, rack 107, positioning button 1051, movable rod 1052, locking button 1053. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 9 A high-efficiency anti-demagnetization stirring motor comprises a base 1 and a ventilation box 7; a bearing seat 2 is embedded in the left end of the base 1, a flange 3 is fixed to the left end of the bearing seat 2 and the left end of the base 1, a motor shaft 4 is movably installed on the inner side of the bearing seat 2, and a rotor is arranged in the middle of the motor shaft 4; the motor shaft 4 is transmission-connected to the middle of an inner fan 6, four groups of ventilation boxes 7 are equidistantly distributed around the base 1, a heat dissipation pipe 8 is embedded in the inner side of the ventilation box 7, an external fan 9 is installed on the right end of the motor shaft 4, and a wind cover 11 is fixed to the right end of the base 1, the device is installed and connected to an external device to be driven through the motor shaft 4, and then the power supply is connected through the junction box 66, and the motor, the permanent magnet, and the stator core 14 are driven in cooperation with each other. The rotating shaft 4 of the machine will drive the external equipment to work, and the magnetic ring plays a role in preventing magnetic leakage; the upper end of the inner part of the wind cover 11 is provided with an air guide mechanism 10, and the left and right sides of the machine base 1 are relatively provided with an inner air inlet 12 and an inner air outlet 13, the inner wall of the machine base 1 is provided with a stator core 14, and the surface of the machine base 1 is circumferentially and evenly distributed with heat dissipation ribs 15; the heat dissipation pipes 8 are distributed in an arc shape along the inside of the ventilation box 7, and are provided with two rows in total. The left and right end walls of the two groups of heat dissipation pipes 8 are bonded with expansion glue 81, and the heat dissipation pipes 8 and the inner wall of the ventilation box 7 are bonded with expansion glue 81, and the left end of the heat dissipation pipe 8 is provided with a guide plate 83, and the upper and lower sides of the guide plate 83 are relatively provided with support rods 82, and the support rods 82 are embedded in the inner side of the expansion glue 81 for fixing;

[0036] In the present application, the external cold air is introduced into the inlet of the external fan 9 by the wind guide cone, and is centrifugally thrown out by the rotation of the fan blades, and is introduced into the heat pipes 8 in the four ventilation boxes 7 evenly distributed on the circumference of the base 1 by the air guide mechanism 10 in the wind, taking away the heat transferred from the hot air passing through the ventilation box 7 in the air path, and discharged from the motor drive end to the atmosphere outside the motor. The internal circulation adds a new air path, which diverts the heat that needs to be transferred in the internal circulation air path, reduces the heat exchange burden of the internal circulation air path, and improves the heat exchange capacity of the motor. By adding a heat dissipation pipe 8, the heat of the internal circulation is diverted to the outside, and the internal heat is directly discharged to the outside, and the guide plate 83 at the mouth of the heat dissipation pipe 8 can guide the hot air to the outside of the motor, which improves the efficiency of internal heat discharge, breaks through the bottleneck of the heat dissipation capacity of the internal circulation air path, improves the internal ventilation and heat dissipation capacity of the motor, reduces the temperature rise of the motor, and opens up a new path for increasing the capacity of the motor.

[0037] In some embodiments, hollow cavity pipes 5 are evenly distributed around the rotor, and permanent magnets are embedded on the inner side of the rotor. Each permanent magnet is arranged in a corresponding magnet slot. Each permanent magnet is connected end to end and arranged around the rotor core. The number of permanent magnets is determined by the size of the rotor core. Magnetic rings are distributed around the surface of the stator core 14.

[0038] In the present application, a junction box 16 is connected to the ventilation box 7 located at the upper left corner of the base 1. Since the stator lead wire needs to be led out from the air outlet (inlet) at one end of the ventilation box 7 to the junction box 16, the number of heat dissipation pipes 8 in the space of the ventilation box 7 needs to be reduced to leave enough space for the stator lead wire to pass through and the circulation space for the circulating air to avoid excessive local wind resistance and too fast a reduction in wind speed.

[0039] In some embodiments, a tube bracket 151 is welded and fixed between two groups of heat dissipation ribs 15, and two groups of tube brackets 151 are provided, and a cooling tube 152 is fixed to the upper end of each tube bracket 151. The natural wind (cold wind) outside the motor is sucked in from the air inlet mesh plate and the air collector of the wind cover 11 under the power of the external fan 9, and is guided into the cooling tube 152 in the wedge-shaped space formed by the heat dissipation ribs 15 distributed radially on the circumference of the machine base 1 through the air guide mechanism in the wind cover 11, as shown in FIG. Figure 6 As shown, the cooling pipe 152 transfers the heat conducted and absorbed by the heat dissipation ribs 15 from the inside of the motor to the air in the cooling pipe 152, and the hot air is emitted from the axial extension end of the cooling pipe 152, which greatly improves the heat dissipation capacity and heat dissipation ability of the external circulation air path, reduces the temperature rise of the stirring motor, prevents the permanent magnet from being demagnetized due to excessive temperature, and plays an anti-demagnetization role.

[0040] In some embodiments, the air guide mechanism 10 includes a receiving rod 101, a receiving seat 102, a guide seat 103, a guide plate 104, a rotating mechanism 105, a gear 106, and a rack 107. The right end of the receiving rod 101 is fixed to the wind cover 11, the left end of the receiving rod 101 is hinged to the receiving seat 102, the guide seat 103 is fixed to the left side of the upper end of the receiving seat 102, and the inner side of the guide seat 103 is slidably matched with the guide plate 104. 02 is provided with a rotating mechanism 105 in the middle, the rotating mechanism 105 is connected to the middle of the gear 106, the gear 106 is engaged with the rack 107, the rack 107 is fixed to the right end of the guide plate 104, the right end of the guide seat 103 is provided with an arc frame 108, the surface of the arc frame 108 is smooth, and the guide seat 103 is provided with two groups, the other group of guide seats 103 is provided on the right side of the lower end of the receiving seat 102, and the two groups of guide seats 103 are The guide plate 104 and the rack 107 are symmetrically distributed, and are arranged in the guide seat 103 located on the right side of the lower end of the receiving seat 102. The guide plate 104 and the rack 107 are both arc-shaped structures, which are convenient for guiding the cold air on the external fan 9, so that the cold air can smoothly enter the heat dissipation ribs 15 and the ventilation box 7, and the guiding direction of the guide plate 104 can be adjusted by toggling the receiving seat 102, and the gear 106 is rotated clockwise to mesh the gear 106 with the rack 107 for transmission, so that the rack 107 drives the guide plate 104 to the outside of the guide seat 103, thereby increasing the length of the guide plate 104 exposed from the receiving seat 102, and the guiding direction of the cold air can be simply adjusted according to the actual operating power to achieve the best heat dissipation effect. Similarly, rotating the gear 106 counterclockwise can make the gear 106 drive the rack 107 and the guide plate 104 to be recovered into the receiving seat 102.

[0041] In the present application, the rotating mechanism 105 includes a positioning button 1051, a movable rod 1052, and a locking button 1053. The movable rod 1052 runs through the middle of the receiving seat 102, and the locking button 1053 and the positioning button 1051 are relatively distributed on the left and right sides of the movable rod 1052. The movable rod 1052 is connected to the gear 106 in a transmission manner, and the locking button 1053 is threadedly matched with the left end of the movable rod 1052. The positioning button 1051 and the locking button 1053 are respectively located at the front and rear ends of the receiving seat 102. By rotating the locking button 1053 clockwise, the locking button 1053 is locked. 53, so that the locking button 1053 and the movable rod 1052 are threadedly transmitted, thereby moving toward the bottom of the receiving seat 102, so that the locking button 1053 and the bottom end surface of the receiving seat 1022 are tightly fitted, and the positioning button 1051 is locked on the receiving seat 1022, so as to position the gear 106 and prevent the gear 106 from rotating. When the gear 106 needs to be rotated, the locking button 1053 is rotated counterclockwise to make the locking button 1053 away from the rear end of the receiving seat 1022, so that the gear 106 can rotate normally.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency anti-demagnetization stirring motor, characterized by: It comprises a machine base (1) and a ventilation box (7); A bearing seat (2) is embedded and installed at the left end of the machine base (1); a flange (3) is fixed to the left end of the bearing seat (2) and the left end of the machine base (1); a motor rotating shaft (4) is movably installed inside the bearing seat (2); a rotor is arranged in the middle of the motor rotating shaft (4); and hollow cavity pipes (5) are equidistantly distributed around the rotor; The motor rotating shaft (4) is drivingly connected to the middle of the internal fan (6); four groups of ventilation boxes (7) are equidistantly distributed around the base (1); a heat dissipation pipe (8) is embedded inside the ventilation box (7); an external fan (9) is installed at the right end of the motor rotating shaft (4); and a wind shield (11) is fixed to the right end of the base (1); An air guide mechanism (10) is provided at the inner upper end of the wind cover (11); an inner air inlet (12) and an inner air outlet (13) are provided on the left and right sides of the machine base (1); a stator core (14) is provided on the inner wall of the machine base (1); and heat dissipation ribs (15) are equidistantly distributed around the surface of the machine base (1); The heat dissipation tubes (8) are distributed in an arc shape along the interior of the ventilation box (7), and are arranged in two rows. The left and right end walls of the two groups of heat dissipation tubes (8) are bonded together using expansion glue (81), and the heat dissipation tubes (8) and the inner wall of the ventilation box (7) are bonded together using expansion glue (81). A guide plate (83) is arranged at the left end of the heat dissipation tube (8), and support rods (82) are arranged oppositely on the upper and lower sides of the guide plate (83), and the support rods (82) are embedded in the inner side of the expansion glue (81) for fixing.

2. The high-efficiency anti-demagnetization stirring motor according to claim 1 is characterized in that: The ventilation box (7) located at the upper left corner of the machine base (1) is connected to a junction box (16).

3. The high-efficiency anti-demagnetization stirring motor according to claim 1 is characterized in that: A tube bracket (151) is welded and fixed between the two groups of heat dissipation ribs (15), and two groups of tube brackets (151) are provided in total, and a cooling tube (152) is fixed at the upper end of each tube bracket (151).

4. The high-efficiency anti-demagnetization stirring motor according to claim 1, characterized in that: The wind guide mechanism (10) comprises a receiving rod (101), a receiving seat (102), a guide seat (103), a guide plate (104), a rotating mechanism (105), a gear (106), and a rack (107); the right end of the receiving rod (101) is fixed to the wind cover (11); the left end of the receiving rod (101) is hinged to the receiving seat (102); the guide seat (103) is fixed to the left side of the upper end of the receiving seat (102); the inner side of the guide seat (103) is slidably matched with the guide plate (104); the middle part of the receiving seat (102) is provided with a rotating mechanism (105); the rotating mechanism (105) is connected to the middle part of the gear (106); the gear (106) is meshed with the rack (107); and the rack (107) is fixed to the right end of the guide plate (104).

5. The high-efficiency anti-demagnetization stirring motor according to claim 4, characterized in that: An arc-shaped frame (108) is provided at the right end of the guide seat (103), and the surface of the arc-shaped frame (108) is smooth.

6. The high-efficiency anti-demagnetization stirring motor according to claim 4, characterized in that: The guide seats (103) are provided in two groups in total, and the other group of guide seats (103) is provided on the right side of the lower end of the receiving seat (102), and the two groups of guide seats (103) are distributed symmetrically.

7. The high-efficiency anti-demagnetization stirring motor according to claim 4, characterized in that: A guide plate (104) and a rack (107) are arranged in the guide seat (103) located on the right side of the lower end of the receiving seat (102).

8. The high-efficiency anti-demagnetization stirring motor according to claim 4, characterized in that: The guide plate (104) and the rack (107) are both arc-shaped structures.

9. The high-efficiency anti-demagnetization special stirring motor according to claim 4, characterized in that: The rotating mechanism (105) comprises a positioning button (1051), a movable rod (1052), and a locking button (1053); the movable rod (1052) penetrates the middle of the receiving seat (102), and the locking button (1053) and the positioning button (1051) are relatively distributed on the left and right sides of the movable rod (1052); the movable rod (1052) is transmission-connected to the gear (106).

10. The high-efficiency anti-demagnetization special stirring motor according to claim 9, characterized in that: The locking button (1053) is threadedly matched with the left end of the movable rod (1052), and the positioning button (1051) and the locking button (1053) are respectively located at the front and rear ends of the receiving seat (102).

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