Motor structure of high-power food mixer

Abstract

The invention discloses a high-power food mixer motor structure, and relates to the technical field of motors, the high-power food mixer motor structure comprises a transmission case, one side of the transmission case is fixedly connected with a cylindrical shell, the upper end of the transmission case is fixedly connected with a main case, the cylindrical shell and the main case are both communicated with the transmission case, and the lower end of the main case is fixedly connected with two partition plates; the upper end of the main case is rotatably connected with a hollow shaft, the lower end of the hollow shaft is fixedly connected with a hollow end shaft, the hollow end shaft is rotatably connected with the partition plate, a rotor assembly is installed on the hollow shaft, a stator winding matched with the rotor assembly is arranged on the inner wall of the main case, and a heat dissipation mechanism is arranged on the main case. By means of the switching mechanism, forward and reverse rotation of the output shaft can be achieved under the condition that the rotation direction of the hollow end shaft is not changed, repeated starting and stopping operation is not needed in the working process, and the problem that a motor is overheated due to repeated starting and stopping is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of motors, in particular to a motor structure of a high-power food mixer. Background Art

[0002] Electric motors are commonly known as motors. Electric motors usually include stator windings and rotors. Stator windings include stator cores and coils wound on the stator cores. The rotor includes a shaft and a rotor core sleeved on the shaft. Permanent magnets are provided on the outer edge of the rotor core. Electric motors are generally divided into DC motors and AC motors. Electric motors are represented by the letter M (D in the old standard) in the circuit. Their main function is to generate driving torque as a power source for common electrical appliances or various machines.

[0003] In a food mixer, the motor is a power component that drives the mixing shaft to rotate and is an indispensable and important equipment in the food mixer. For example, the prior art CN215027769U proposes a frequently started high-efficiency mixing motor, which includes a mixing motor body, a rotor is arranged inside the mixing motor body, a connecting column is fixedly connected to the right end of the rotor, a mounting rod is fixedly connected to the right end of the connecting column, a sleeve is movably sleeved outside the mounting rod, and a plurality of fan blades are fixedly connected to the outer wall of the sleeve. The motor improves the heat dissipation effect of the motor by optimizing the fan layout to improve the air circulation around the motor.

[0004] However, in a food mixer, the stirring of food requires the stirring shaft to be repeatedly rotated forward and reversed. In the prior art, the forward and reverse rotation of the stirring shaft requires the motor to continuously switch direction. When the motor switches direction, the motor needs to stop first and then reverse. During the forward and reverse rotation, the motor needs to go through repeated starts and stops. Since the starting current of the motor is large, repeated starts and stops will cause the motor to heat up rapidly. This situation is particularly serious when high-power motors are used. The prior art only relies on external heat dissipation to meet the use requirements of high-power motors. At the same time, during the forward and reverse rotation, the stirring shaft switches from one direction to another, and it will be subjected to a large reverse force. This reverse force will increase the burden on the motor and may cause the motor to overload under continuous operation, seriously reducing the service life of the motor. To address the above problems, we provide a high-power food mixer motor structure. Summary of the invention

[0005] The object of the present invention is to provide a high-power food mixer motor structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A high-power food mixer motor structure, comprising a transmission box, one side of the transmission box is fixedly connected to a cylindrical shell, the upper end of the transmission box is fixedly connected to a main casing, the cylindrical shell and the main casing are both connected to the transmission box, the lower end of the main casing is fixedly connected to two partitions, the upper end of the main casing is rotatably connected to a hollow shaft, the lower end of the hollow shaft is fixedly connected to a hollow end shaft, the hollow end shaft is rotatably connected to the partition, a rotor assembly is installed on the hollow shaft, the inner wall of the main casing is provided with a stator winding matched with the rotor assembly, and a heat dissipation mechanism is provided on the main casing;

[0008] The transmission box is rotatably connected to the middle of the side away from the cylindrical shell, and the side of the transmission box close to the cylindrical shell is fixedly connected to the bearing seat, the main shaft is rotatably connected to the bearing seat, and a reversing mechanism is provided inside the transmission box to cooperate with the hollow end shaft to drive the main shaft to rotate forward and reverse;

[0009] An output shaft is rotatably connected in the middle of one side of the cylindrical shell away from the transmission box, and an anti-impact mechanism is arranged inside the cylindrical shell to prevent the main shaft from being impacted when rotating forward or reversely.

[0010] As a further solution of the present invention: the heat dissipation mechanism includes a plurality of heat dissipation fins, and the plurality of heat dissipation fins are evenly distributed and fixedly connected to the outer surface of the main casing, a protective mesh cover is installed between the upper ends of the heat dissipation fins, the position where the upper end of the hollow shaft passes through the main casing is fixedly connected with an outer blade, and the main casing is also provided with an internal ventilation component for ventilating the interior of the hollow shaft.

[0011] As a further solution of the present invention: the internal ventilation component includes an inner shaft blade, the inner shaft blade is installed at the upper end of the hollow shaft, the hollow end shaft is located between the two partitions and is provided with a plurality of shaft air holes, and the lower end of the main casing is provided with a plurality of exhaust holes connected to the cavity formed by the two partitions.

[0012] As a further scheme of the present invention: the reversing mechanism includes a first bevel gear, which is installed at the lower end of the hollow end shaft, and inner support plates are fixedly connected on both sides of the transmission box, and rotating cylinders are rotatably connected on the inner support plates, and the rotating cylinders are concentric with the main shaft. Second bevel gears are installed on the two rotating cylinders, and the two second bevel gears are respectively meshed with the two sides of the first bevel gears, and first tooth heads are provided at opposite ends of the two rotating cylinders. The first tooth heads on the two rotating cylinders are set in opposite directions, and a transmission assembly for cooperating with the first tooth head to drive the main shaft to rotate is provided on the main shaft.

[0013] As a further solution of the present invention: the transmission assembly includes a switching cylinder, which is slidably connected to the position where the main shaft is located between the two rotating cylinders, and both ends of the switching cylinder are provided with a second tooth head that cooperates with the first tooth head, and a plurality of sliding grooves are opened near the middle of the main shaft surface, and a plurality of inner convex sliding blocks matching the sliding grooves are fixedly connected to the inner wall of the switching cylinder, and an action component for driving the switching cylinder to move and engage with the first tooth head is provided at the lower end of the transmission box.

[0014] As a further solution of the present invention: the action component includes a fixed seat, the fixed seat is respectively fixedly connected to the positions on both sides of the lower end surface inside the transmission box, the fixed seat is installed with an electromagnet, a sliding rod is fixedly connected between the upper ends of the fixed seats, an iron block is slidably connected to the sliding rod, a shift rack is fixedly connected to the upper end of the iron block, the shift rack is rotatably connected to the switching cylinder, the positions of the switching cylinder on both sides of the shift rack are fixedly connected with limit stop rings, and the sliding rod is passed through a first spring at the position between the iron block and the fixed seat.

[0015] As a further scheme of the present invention: the anti-impact mechanism includes an inner rotating block, the inner rotating block is fixedly connected to one end of the main shaft close to the cylindrical shell, the surface of the inner rotating block is provided with a plurality of limit grooves, the limit grooves are evenly distributed in an annular shape, a T-shaped limit block is slidably connected inside the limit groove, the end of the T-shaped limit block passing through the limit groove is installed with a second magnet block, and the magnetic poles of two adjacent second magnet blocks are arranged in opposite directions, a tension spring groove is provided on the side of the limit groove close to the main shaft, and a second tension spring is installed between the inner end face of the tension spring groove and the T-shaped limit block, a plurality of evenly distributed locking holes are provided on the end face of the inner rotating block away from the transmission box, the end of the output shaft close to the transmission box is fixedly connected with a sleeve block, and the end of the sleeve block close to the transmission box is provided with an inner circular groove, the inner rotating block is arranged in the inner circular groove, and the inner wall of the inner circular groove is embedded with a first magnet block matching the second magnet block, and the sleeve block is provided with a combining component that cooperates with the locking hole to link the output shaft and the main shaft.

[0016] As a further scheme of the present invention: the combining assembly includes a plurality of strip grooves, and the plurality of strip grooves are respectively opened on a side of the sleeve block away from the transmission box, and side slide grooves are opened on both sides of the strip grooves, and inclined push blocks are slidably connected in the strip grooves, and limited side blocks are fixedly connected on both sides of the inclined push blocks, and the limited side blocks are slidably connected to the side slide grooves, and a first tension spring is installed between an end of the inclined push block away from the inclined surface and an end of the strip groove close to the output shaft, and the sleeve block is provided with an inner sliding cavity at an end of the strip groove away from the output shaft, and side sliding blocks are slidably connected on both sides of the inner sliding cavity, and a locking pin is fixedly connected between the two side sliding blocks, the locking pin is slidably connected to the sleeve block, and a roller is installed on one end of the locking pin close to the inclined push block, and second springs cooperating with the side sliding blocks are installed on both sides of the inner sliding cavity.

[0017] As a further solution of the present invention: a controller is installed on the transmission box.

[0018] As a further solution of the present invention: a mounting plate is fixedly connected to one end of the cylindrical shell away from the transmission box, and a plurality of mounting holes are formed on the mounting plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides a switching mechanism, which can realize the forward and reverse rotation of the output shaft without changing the rotation direction of the hollow end shaft, so that there is no need to perform repeated start and stop operations during operation, thus avoiding the problem of stator winding overheating caused by repeated start and stop. At the same time, the internal and external heat dissipation of the motor can effectively avoid the occurrence of motor overheating. The anti-impact mechanism provided can gradually combine the main shaft and the output shaft for transmission during operation, and the transmission parts are not in direct contact in the initial stage of the initial transmission, which can effectively avoid the main shaft being subjected to a large reaction force when switching between forward and reverse directions, effectively reducing the driving burden, avoiding the occurrence of overload, and then effectively improving the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the other side of the present invention.

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the bevel gear in the present invention.

[0025] Figure 5 It is a structural schematic diagram of the transmission component in the present invention.

[0026] Figure 6 It is a schematic diagram of the structure of the blades inside the hollow shaft of the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the switching cylinder in the present invention.

[0028] Figure 8 It is a schematic diagram of the cross-sectional structure of the sleeve block in the present invention.

[0029] Fig. 9 It is a schematic diagram of the cross-sectional structure of the inner rotating block in the present invention.

[0030] Fig.10 It is a schematic diagram of the external structure of the inner rotating block in the present invention.

[0031] Fig.11 It is a schematic diagram of the external structure of the set block in the present invention.

[0032] Fig.12 For the present invention Figure 8 A is an enlarged structural diagram of FIG.

[0033] Among them: 1. Transmission box; 2. Controller; 3. Exhaust hole; 4. Main housing; 5. Protective mesh cover; 6. Heat dissipation fins; 7. Mounting plate; 8. Output shaft; 9. Cylindrical shell; 10. Rotor assembly; 11. Stator winding; 12. Outer blades; 13. Hollow shaft; 14. Shaft air hole; 15. Partition; 16. First bevel gear; 17. Main shaft; 18. Inner support plate; 19. Pick-up rack; 20. Iron block; 21. Fixed seat; 22. Electromagnet; 23. Bearing seat; 24. Bushing block; 25. Inner rotating block; 26. Second bevel gear; 27. Hollow end shaft; 28. First tooth insert; 29. ​​Rotor Cylinder; 30, blade inside the shaft; 31, sliding groove; 32, second tooth embedded head; 33, limit ring; 34, first magnet block; 35, switching cylinder; 36, sliding rod; 37, inner convex slider; 38, first spring; 39, inner circular groove; 40, locking pin; 41, strip groove; 43, inclined push block; 44, first tension spring; 45, tension spring groove; 46, T-shaped limit block; 47, limit groove; 48, second magnet block; 49, second tension spring; 50, locking hole; 51, side sliding groove; 52, limit side block; 53, second spring; 54, inner sliding cavity; 55, side slider; 56, roller. 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 12 In an embodiment of the present invention, a high-power food mixer motor structure includes a transmission box 1, a cylindrical shell 9 is fixedly connected to one side of the transmission box 1, and a mounting plate 7 is fixedly connected to the end of the cylindrical shell 9 away from the transmission box 1, and a plurality of mounting holes are opened on the mounting plate 7; the mounting plate 7 and the mounting holes on the mounting plate 7 can be easily installed and used.

[0036] The upper end of the transmission box 1 is fixedly connected to the main casing 4, the cylindrical shell 9 and the main casing 4 are both connected to the transmission box 1, the lower end of the main casing 4 is fixedly connected to two partitions 15, the upper end of the main casing 4 is rotatably connected to the hollow shaft 13, the lower end of the hollow shaft 13 is fixedly connected to the hollow end shaft 27, the hollow end shaft 27 is rotatably connected to the partition 15, the hollow shaft 13 is installed with a rotor assembly 10, the inner wall of the main casing 4 is provided with a stator winding 11 matching the rotor assembly 10, and the main casing 4 is provided with a heat dissipation mechanism; the transmission box 1 is installed with a controller 2; when working, the stator winding 11 is energized to generate a corresponding magnetic field, and then cooperates with the rotor assembly 10 to realize the rotation of the hollow end shaft 27, and the heat dissipation assembly can dissipate heat to the inside of the hollow shaft 13 and the main casing 4 during work to avoid overheating inside the main casing 4.

[0037] The heat dissipation mechanism includes a plurality of heat dissipation fins 6, and the plurality of heat dissipation fins 6 are evenly distributed and fixedly connected to the outer surface of the main housing 4. A protective mesh cover 5 is installed between the upper ends of the heat dissipation fins 6. The position where the upper end of the hollow shaft 13 passes through the main housing 4 is fixedly connected with an outer blade 12. The main housing 4 is also provided with an internal ventilation component for ventilating the inside of the hollow shaft 13; the internal ventilation component includes an inner shaft blade 30, and the inner shaft blade 30 is installed at the upper end of the hollow shaft 13. The hollow end shaft 27 is located between the two partitions 15 and is provided with a plurality of shaft air holes 14. The lower end of the main housing 4 is provided with a plurality of exhaust pipes 12 connected to the cavity formed by the two partitions 15. air hole 3; when working, the rotation of the hollow end shaft 27 will drive the outer blades 12 to rotate, and the rotation of the outer blades 12 will drive the air around the main casing 4 and the heat dissipation fins 6 to flow, thereby realizing the heat dissipation of the main casing 4. At the same time, the rotation of the hollow shaft 13 can also drive the inner blades 30 to rotate. The rotation of the inner blades 30 will introduce air into the hollow shaft 13, and then be discharged from the shaft air hole 14. The discharged air enters the cavity formed by the two partitions 15, and then is discharged from the exhaust hole 3, thereby realizing the circulation of air inside the main casing 4. Through the air circulation inside and outside the main casing 4, the heat generated during the working process can be effectively dissipated to avoid the problem of overheating of the motor.

[0038] A main shaft 17 is rotatably connected to the middle of the side of the transmission box 1 away from the cylindrical shell 9, and a bearing seat 23 is fixedly connected to the side of the transmission box 1 close to the cylindrical shell 9. The main shaft 17 is rotatably connected to the bearing seat 23. A reversing mechanism is provided inside the transmission box 1 to cooperate with the hollow end shaft 27 to drive the main shaft 17 to perform forward and reverse rotation; the reversing mechanism includes a first bevel gear 16, which is installed at the lower end of the hollow end shaft 27, and the inner support plates 18 are fixedly connected to both sides of the transmission box 1. A rotating drum 29 is rotatably connected to the inner support plates 18, and the rotating drum 29 is concentric with the main shaft 17. Second bevel gears 26 are installed on the two rotating drums 29, and the two second bevel gears 26 are respectively connected to the first bevel gears The two sides of the wheel 16 are meshed, and the opposite ends of the two rotating cylinders 29 are each provided with a first toothed head 28, and the first toothed heads 28 on the two rotating cylinders 29 are arranged in opposite directions. The main shaft 17 is provided with a transmission component for cooperating with the first toothed head 28 to drive the main shaft 17 to rotate; during operation, the hollow end shaft 27 can drive the first bevel gear 16 to rotate, and the rotation of the first bevel gear 16 can drive the two second bevel gears 26 to rotate. Since the two second bevel gears 26 are respectively meshed with the two sides of the first bevel gear 16, the two second bevel gears 26 have opposite directions of rotation, and then the transmission component can be respectively cooperated with the first toothed heads 28 on the two second bevel gears 26, thereby realizing the switching of the direction of rotation of the main shaft 17.

[0039] The transmission assembly includes a switching cylinder 35, which is slidably connected to the position of the main shaft 17 between the two rotating cylinders 29, and a second tooth head 32 that cooperates with the first tooth head 28 is provided at both ends of the switching cylinder 35. A plurality of sliding grooves 31 are opened near the middle of the surface of the main shaft 17, and a plurality of inner convex sliding blocks 37 that match the sliding grooves 31 are fixedly connected to the inner wall of the switching cylinder 35. An action assembly for driving the switching cylinder 35 to move and engage with the first tooth head 28 is provided at the lower end of the transmission box 1; the action assembly includes a fixed seat 21, and the fixed seat 21 is respectively fixedly connected to the positions on both sides of the lower end surface of the transmission box 1, and an electromagnet 22 is installed in the fixed seat 21, and a sliding rod 36 is fixedly connected between the upper ends of the fixed seat 21. An iron block 20 is slidably connected, and a shift rack 19 is fixedly connected to the upper end of the iron block 20. The shift rack 19 is rotatably connected to the switching cylinder 35. The positions of the switching cylinder 35 on both sides of the shift rack 19 are fixedly connected to the limit stop ring 33, and the sliding rod 36 is located between the iron block 20 and the fixed seat 21. A first spring 38 is penetrated. When working, the second toothed head 32 on the switching cylinder 35 cooperates with the first toothed head 28 on one side to achieve power connection, and the rotational power of the second bevel gear 26 is transmitted to the main shaft 17. When it is necessary to switch the direction, the corresponding electromagnet 22 can be started to drive the iron block 20 to move, and the corresponding second toothed head 32 can be pushed to combine with the corresponding first toothed head 28, so that the main shaft 17 can be connected to the second bevel gear 26 on the other side for power to achieve the steering switch of the main shaft 17.

[0040] The output shaft 8 is rotatably connected to the middle of the side of the cylindrical shell 9 away from the transmission box 1, and an anti-impact mechanism is provided inside the cylindrical shell 9 to prevent the main shaft 17 from being impacted when rotating forward and reversely; the anti-impact mechanism includes an inner rotating block 25, and the inner rotating block 25 is fixedly connected to the end of the main shaft 17 close to the cylindrical shell 9, and a plurality of limiting grooves 47 are opened on the surface of the inner rotating block 25, and the limiting grooves 47 are evenly distributed in an annular shape, and a T-shaped limiting block 46 is slidably connected inside the limiting groove 47, and the T-shaped limiting A second magnet block 48 is installed at one end of the positioning block 46 passing through the limiting groove 47, and the magnetic poles of the two adjacent second magnet blocks 48 are arranged oppositely. A tension spring groove 45 is provided on the side of the limiting groove 47 close to the main shaft 17, and a second tension spring 49 is installed between the inner end face of the tension spring groove 45 and the T-shaped limiting block 46. A plurality of evenly distributed locking holes 50 are provided on the end face of the inner rotating block 25 away from the transmission box 1. The end of the output shaft 8 close to the transmission box 1 is fixedly connected with a sleeve block 24, and the sleeve block 24 is close to the main shaft 17. An inner circular groove 39 is provided at one end of the transmission box 1, and the inner rotating block 25 is arranged in the inner circular groove 39. The inner wall of the inner circular groove 39 is embedded with a first magnet block 34 matched with the second magnet block 48. The sleeve block 24 is provided with a coupling component that cooperates with the locking hole 50 to link the output shaft 8 and the main shaft 17; when working, the main shaft 17 drives the inner rotating block 25 to rotate, and when the inner rotating block 25 rotates, it will drive the T-shaped limit block 46 to operate together, and the T-shaped limit block 46 will rotate away from the inner rotating block 25. Under the action of centrifugal force, the inner rotating block 25 moves toward the outside of the limit groove 47 and gradually approaches the first magnet block 34. At the same time, the sleeve block 24 rotates under the magnetic force of the second magnet block 48 and the first magnet block 34. Since the second magnet block 48 and the first magnet block 34 are not in direct contact and a gap is left, the inner rotating block 25 is not directly connected to the inner circular groove 39 during operation, thereby effectively avoiding the problem of excessive rotation resistance of the main shaft 17 caused by the reaction force generated by the stirring shaft connected to the output shaft 8 during reversal.

[0041] The combining assembly includes a plurality of strip grooves 41, and the plurality of strip grooves 41 are respectively opened on a side of the sleeve block 24 away from the transmission box 1, and side slide grooves 51 are opened on both sides of the strip grooves 41, and inclined surface push blocks 43 are slidably connected in the strip grooves 41, and limited side blocks 52 are fixedly connected on both sides of the inclined surface push blocks 43, and the limited side blocks 52 are slidably connected to the side slide grooves 51. A first tension spring 44 is installed between the end of the inclined surface push block 43 away from the inclined surface and the end of the strip groove 41 close to the output shaft 8, and an inner slide cavity 54 is opened on the end of the sleeve block 24 located at the strip groove 41 away from the output shaft 8, and side sliders 55 are slidably connected on both sides of the inner slide cavity 54, and a locking pin 40 is fixedly connected between the two side sliders 55. The locking pin 40 is slidably connected to the sleeve block 24, and a roller 56 is installed at one end of the locking pin 40 close to the inclined push block 43, and second springs 53 cooperating with the side sliders 55 are installed on both sides of the inner sliding cavity 54; during operation, when the sleeve block 24 is driven to rotate, the sleeve block 24 rotates to cause the inclined push block 43 to generate centrifugal force, and the inclined push block 43 pushes the locking pin 40 to move toward the inner rotating block 25 under the action of the centrifugal force. At the same time, the faster the sleeve block 24 rotates, the greater the centrifugal force generated by the inclined push block 43. When the rotation speed of the sleeve block 24 approaches that of the inner rotating block 25, the locking pin 40 is fully extended and inserted into the locking hole 50 on the inner rotating block 25 to achieve complete connection between the inner rotating block 25 and the sleeve block 24, thereby ensuring stability during the transmission process.

[0042] The working principle of the present invention is: when working, the stator winding 11 is energized to generate a corresponding magnetic field, which can then cooperate with the rotor assembly 10 to drive the rotation of the hollow end shaft 27, and the hollow end shaft 27 can drive the first bevel gear 16 to rotate. The rotation of the first bevel gear 16 can drive the two second bevel gears 26 to rotate. Since the two second bevel gears 26 are respectively meshed with the two sides of the first bevel gear 16, the two second bevel gears 26 rotate in opposite directions. When the two electromagnets 22 are not energized, the switching cylinder 35 is in the middle position under the action of the first spring 38 and does not contact the first tooth heads 28 on both sides. At this time, the main shaft 17 will not rotate. When the main shaft 17 needs to rotate, the electromagnet 22 on one side is controlled to be energized, and the electromagnet 2 When the power is turned on, the iron block 20 can move accordingly, so that the second toothed head 32 on the switching cylinder 35 can be combined with the first toothed head 28 on the rotating cylinder 29 on one side, so that power transmission can be realized, and the main shaft 17 can rotate. When the direction needs to be switched, the electromagnet 22 on one side is powered off, and then the electromagnet 22 on the other side is powered on, so that the second toothed head 32 on the other side of the switching cylinder 35 can be combined with the first toothed head 28 on the other side to realize the direction switching. When rotating, the main shaft 17 drives the inner rotating block 25 to rotate, and when the inner rotating block 25 rotates, it drives the T-shaped limit block 46 to operate together. Under the centrifugal force of the rotation of the inner rotating block 25, the T-shaped limit block 46 moves to the outside of the limit groove 47 and gradually approaches the first magnet block 34, and at the same time When the sleeve block 24 is driven to rotate, the sleeve block 24 rotates under the magnetic force of the second magnet block 48 and the first magnet block 34. Since the second magnet block 48 and the first magnet block 34 are not in direct contact and a gap is left, the inner rotating block 25 is not directly connected to the inner circular groove 39 during operation, thereby effectively avoiding the problem of excessive rotation resistance of the main shaft 17 caused by the reaction force generated by the stirring shaft connected to the output shaft 8 during reversal, and effectively avoiding a short-term overload of the motor during forward and reverse switching. When the sleeve block 24 is driven to rotate, the sleeve block 24 rotates to cause the inclined surface push block 43 to generate centrifugal force. The inclined surface push block 43 pushes the locking pin 40 to move toward the inner rotating block 25 under the action of the centrifugal force. At the same time, when the sleeve block 24 rotates faster, the inclined surface push block 43 generates The greater the centrifugal force generated, when the rotation speed of the sleeve block 24 approaches the inner rotating block 25, the locking pin 40 is fully extended and inserted into the locking hole 50 on the inner rotating block 25 to achieve complete connection between the inner rotating block 25 and the sleeve block 24, thereby ensuring stability during the transmission process. When switching the direction, since the main shaft 17 will temporarily lose power, the speed of the sleeve block 24 and the inner rotating block 25 will slow down and stop. During this process, the locking pin 40 will be reset under the action of the second spring 53, and the second magnet block 48 will be reset away from the first magnet block 34 under the action of the second tension spring 49, so that the inner rotating block 25 and the sleeve block 24 can be completely separated, so that it can prevent excessive reaction torque during driving and also act as a clutch, ensuring smooth forward and reverse switching.

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Although this specification is described in accordance with the implementation modes, not every implementation mode includes only one technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-power food mixer motor structure, comprising a transmission box (1), characterized in that: A cylindrical shell (9) is fixedly connected to one side of the transmission box (1), a main housing (4) is fixedly connected to the upper end of the transmission box (1), the cylindrical shell (9) and the main housing (4) are both in communication with the transmission box (1), two partitions (15) are fixedly connected to the lower end of the main housing (4), a hollow shaft (13) is rotatably connected to the upper end of the main housing (4), a hollow end shaft (27) is fixedly connected to the lower end of the hollow shaft (13), the hollow end shaft (27) is rotatably connected to the partition (15), a rotor assembly (10) is mounted on the hollow shaft (13), a stator winding (11) matching the rotor assembly (10) is provided on the inner wall of the main housing (4), and a heat dissipation mechanism is provided on the main housing (4); A main shaft (17) is rotatably connected to the middle of a side of the transmission box (1) away from the cylindrical shell (9), a bearing seat (23) is fixedly connected to a side of the transmission box (1) close to the cylindrical shell (9), the main shaft (17) is rotatably connected to the bearing seat (23), and a reversing mechanism is provided inside the transmission box (1) for cooperating with a hollow end shaft (27) to drive the main shaft (17) to rotate forward and reverse; An output shaft (8) is rotatably connected to the middle of a side of the cylindrical shell (9) away from the transmission box (1), and an anti-impact mechanism is provided inside the cylindrical shell (9) for preventing the main shaft (17) from being impacted when rotating forward or reversely.

2. A high-power food mixer motor structure according to claim 1, characterized in that: The heat dissipation mechanism comprises a plurality of heat dissipation fins (6), the plurality of heat dissipation fins (6) being evenly distributed and fixedly connected to the outer surface of the main housing (4), a protective mesh cover (5) being installed between the upper ends of the heat dissipation fins (6), an outer blade (12) being fixedly connected to the position where the upper end of the hollow shaft (13) passes through the main housing (4), and an internal ventilation component for ventilating the interior of the hollow shaft (13) is also provided inside the main housing (4).

3. A high-power food mixer motor structure according to claim 2, characterized in that: The inner ventilation component comprises an inner shaft blade (30), wherein the inner shaft blade (30) is installed at the upper end of the hollow shaft (13), and a plurality of shaft air holes (14) are provided at a position between two partitions (15) of the hollow end shaft (27), and a plurality of exhaust holes (3) are provided at the lower end of the main housing (4) and are connected to the cavity formed by the two partitions (15).

4. A high-power food mixer motor structure according to claim 1, characterized in that: The reversing mechanism comprises a first bevel gear (16), which is mounted at the lower end of a hollow end shaft (27); inner support plates (18) are fixedly connected to both sides of the transmission box (1); a rotating cylinder (29) is rotatably connected to the inner support plates (18); the rotating cylinder (29) is concentric with the main shaft (17); a second bevel gear (26) is mounted on the two rotating cylinders (29); the two second bevel gears (26) are respectively meshed with the two sides of the first bevel gear (16); opposite ends of the two rotating cylinders (29) are provided with a first toothed head (28); the first toothed heads (28) on the two rotating cylinders (29) are arranged in opposite directions; and a transmission assembly for cooperating with the first toothed head (28) to drive the main shaft (17) to rotate is provided on the main shaft (17).

5. A high-power food mixer motor structure according to claim 4, characterized in that: The transmission assembly comprises a switching cylinder (35), the switching cylinder (35) being slidably connected to a position of the main shaft (17) between two rotating cylinders (29), and second toothed heads (32) matching with the first toothed heads (28) being provided at both ends of the switching cylinder (35), a plurality of sliding grooves (31) being provided near the middle of the surface of the main shaft (17), a plurality of inner convex sliding blocks (37) matching with the sliding grooves (31) being fixedly connected to the inner wall of the switching cylinder (35), and an action assembly for driving the switching cylinder (35) to move and engage with the first toothed head (28) being provided at the lower end of the transmission box (1).

6. A high-power food mixer motor structure according to claim 5, characterized in that: The action assembly comprises a fixed seat (21), the fixed seat (21) is respectively fixedly connected to positions on both sides of the lower end surface inside the transmission box (1), an electromagnet (22) is installed in the fixed seat (21), a sliding rod (36) is fixedly connected between the upper ends of the fixed seat (21), an iron block (20) is slidably connected to the sliding rod (36), a shifting frame (19) is fixedly connected to the upper end of the iron block (20), the shifting frame (19) is rotatably connected to a switching cylinder (35), the positions of the switching cylinder (35) located on both sides of the shifting frame (19) are fixedly connected to limit stop rings (33), and the positions of the sliding rod (36) located between the iron block (20) and the fixed seat (21) are penetrated by a first spring (38).

7. A high-power food mixer motor structure according to claim 1, characterized in that: The anti-impact mechanism comprises an inner rotating block (25), the inner rotating block (25) is fixedly connected to one end of the main shaft (17) close to the cylindrical shell (9), a plurality of limiting grooves (47) are provided on the surface of the inner rotating block (25), the limiting grooves (47) are evenly distributed in an annular shape, a T-shaped limiting block (46) is slidably connected inside the limiting groove (47), a second magnet block (48) is installed at one end of the T-shaped limiting block (46) passing through the limiting groove (47), and the magnetic poles of two adjacent second magnet blocks (48) are arranged in opposite directions, and a tension spring groove (45) is provided on one side of the limiting groove (47) close to the main shaft (17), and the inner end surface of the tension spring groove (45) is in contact with the T-shaped limiting block (46). A second tension spring (49) is installed between the positioning blocks (46); a plurality of evenly distributed locking holes (50) are provided on an end surface of the inner rotating block (25) away from the transmission box (1); a sleeve block (24) is fixedly connected to an end of the output shaft (8) close to the transmission box (1); an inner circular groove (39) is provided on an end of the sleeve block (24) close to the transmission box (1); the inner rotating block (25) is arranged in the inner circular groove (39); a first magnet block (34) matching the second magnet block (48) is embedded in the inner wall of the inner circular groove (39); and a coupling component is provided on the sleeve block (24) for cooperating with the locking hole (50) to link the output shaft (8) and the main shaft (17).

8. A high-power food mixer motor structure according to claim 7, characterized in that: The combination assembly comprises a plurality of strip grooves (41), wherein the plurality of strip grooves (41) are respectively arranged on a side of the sleeve block (24) away from the transmission box (1), and side sliding grooves (51) are arranged on both sides of the strip grooves (41), and inclined surface push blocks (43) are slidably connected in the strip grooves (41), and both sides of the inclined surface push blocks (43) are fixedly connected with limited side blocks (52), and the limited side blocks (52) are slidably connected with the side sliding grooves (51), and an end of the inclined surface push block (43) away from the inclined surface is arranged between an end of the inclined surface push block (43) close to the output shaft (8). A first tension spring (44) is installed, and an inner sliding cavity (54) is opened at one end of the sleeve block (24) located at the strip groove (41) away from the output shaft (8), and side sliders (55) are slidably connected to both sides of the inner sliding cavity (54), and a locking pin (40) is fixedly connected between the two side sliders (55), and the locking pin (40) is slidably connected to the sleeve block (24), and a roller (56) is installed at one end of the locking pin (40) close to the inclined push block (43), and second springs (53) cooperating with the side sliders (55) are installed on both sides of the inner sliding cavity (54).

9. A high-power food mixer motor structure according to claim 1, characterized in that: A controller (2) is installed on the transmission box (1).

10. A high-power food mixer motor structure according to claim 1, characterized in that: One end of the cylindrical shell (9) away from the transmission box (1) is fixedly connected to a mounting plate (7), and a plurality of mounting holes are provided on the mounting plate (7).

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