A high-efficiency nested motor stator and rotor structure

Abstract

The present invention relates to the technical field of motor stator and rotor structures, and discloses a high-efficiency nested motor stator and rotor structure, comprising a fixed ring, the inner wall of which is fixedly connected to a stator assembly, a rotor assembly disposed within the stator assembly, a detection mechanism disposed on one side of the fixed ring, the detection mechanism being fixedly connected to the fixed ring via a connecting frame, the detection mechanism being used to detect whether the rotor assembly has experienced wear and displacement; the detection mechanism comprising a positioning assembly having an annular structure, and an adjustment device disposed within the positioning assembly, the adjustment device being fixedly connected to the inner wall of the positioning assembly. This high-efficiency nested motor stator and rotor structure uses an alarm to remind users to maintain worn or displaced components, thereby preventing rotor offset from causing uneven air gaps and distorting the magnetic field distribution of the motor.

Description

Technical Field

[0001] The present invention relates to the technical field of motor stator and rotor structures, and in particular to a high-efficiency nested motor stator and rotor structure. Background Art

[0002] Simply put, the stator and rotor of a motor are the fixed part of the motor, on which a pair of stationary main magnetic poles with DC excitation are installed, and the rotating part, the rotor, is called the armature, on which a rotating magnetic field is generated when energized. Electromagnetic torque is then generated for energy conversion. The shape and embedding method of the stator winding distinguish them. The stator winding can be divided into centralized and distributed types according to the shape of the coil winding and the embedding wiring method. The centralized winding is used for the salient pole stator, usually wound into a rectangular coil, wrapped with warp tape to shape it, and then embedded in the iron core of the salient pole after varnish dipping and drying. The motor stator with distributed winding does not have a salient pole palm. Each pole consists of one or several coils embedded and wired according to a certain rule to form a coil group. After power is applied, poles of different polarities are formed, so it is also called hidden pole type.

[0003] Currently, during the use of the motor stator and rotor, the rotor will be offset due to bearing wear or displacement, which will change the size and uniformity of the air gap, affecting the performance of the motor. Long-term eccentric use will accelerate the damage of the motor. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-efficiency nested motor stator and rotor structure, including a fixed ring, the inner wall of which is fixedly connected to a stator assembly, and further comprising:

[0005] a rotor assembly disposed inside the stator assembly;

[0006] A detection mechanism is provided on one side of the fixed ring and is fixedly connected to the fixed ring via a connecting frame. The detection mechanism is used to detect whether the rotor assembly has wear and displacement;

[0007] The detection mechanism includes:

[0008] A positioning assembly having an annular structure and an adjusting device disposed inside the positioning assembly, wherein the adjusting device is fixedly connected to an inner wall of the positioning assembly;

[0009] A fixed plate, which is disposed inside the positioning assembly, wherein one side of the fixed plate is fixedly connected to the adjustment device, a side of the fixed plate away from the adjustment device is fixedly connected to an arc spring, and an end of the arc spring away from the fixed plate is fixedly connected to an extrusion head;

[0010] A squeeze switch, which is arranged on a fixed plate, is arranged opposite to the squeeze head, and is fixedly connected to the fixed plate;

[0011] An alarm is provided on the positioning assembly, the alarm is electrically connected to the squeeze switch, and the alarm is fixedly connected to the positioning assembly to avoid the rotor offset causing uneven air gap and distortion of the magnetic field distribution of the motor, thereby avoiding the torque fluctuation of the motor affecting the output performance of the motor.

[0012] Preferably, one side of the positioning component is fixedly connected to the fixing ring via a connecting frame, and the alarm is fixed on a side of the positioning component away from the fixing ring.

[0013] Preferably, the fixing plates are provided in multiple groups and are distributed in a ring shape on the adjusting device, and the side of the extrusion head away from the extrusion switch is fixedly connected to the extrusion plate.

[0014] Preferably, the adjusting device includes an annular hydraulic tube, one side of the annular hydraulic tube is connected to a thick tube, the end of the thick tube away from the annular hydraulic tube is connected to a thin tube, the inner wall of the thin tube is threadedly connected to an extrusion piston, the inner side surface of the annular hydraulic tube is connected to a piston tube, the inner wall of the piston tube is slidingly connected to an adjusting piston, one end of the adjusting piston extends to the outside of the piston tube, the end of the adjusting piston located outside the piston tube is sleeved and fixedly connected to a collar, both sides of the collar are fixedly connected to tensioning springs, and the gap caused by wear is filled by the movement of the extrusion plate, so as to avoid the situation where the extrusion plate is worn after long-term use and the alarm system becomes insensitive, so that the alarm system can operate reliably for a long time.

[0015] Preferably, the annular hydraulic pipe is arranged inside the positioning assembly and fixedly connected to the inner wall of the positioning assembly, and the end of the tension spring away from the collar is fixedly connected to the side surface of the annular hydraulic pipe.

[0016] Preferably, the piston tubes are provided in multiple groups and correspond one to one with the fixing plates, and one end of the regulating piston located outside the piston tube is fixedly connected to the side surface of the fixing plate.

[0017] Preferably, the rotor assembly includes a rotor coil, the center position of the rotor coil passes through and is fixedly connected to a rotating shaft, a heat dissipation groove is opened on the side of the short-circuit ring of the rotor coil, and a heat dissipation fan blade corresponding to the heat dissipation groove is fixedly connected to the short-circuit ring of the rotor coil. An extrusion ring is sleeved and fixedly connected at one end of the rotating shaft, and the contact area with the air is increased through the heat dissipation groove, which facilitates improving the heat dissipation efficiency, and the heat dissipation fan blade is set to be arc-shaped, and the airflow can be guided into the interior of the heat dissipation groove through the arc-shaped heat dissipation fan blade, so that the heat dissipation effect is better.

[0018] Preferably, the heat dissipation slots and heat dissipation blades are provided in multiple groups and correspond one to one, and the heat dissipation blades are arranged in an arc shape.

[0019] Preferably, the rotating shaft passes through the detection mechanism, and the extrusion ring is arranged at the center of the detection mechanism.

[0020] The present invention provides a high-efficiency nested motor stator and rotor structure, which has the following beneficial effects:

[0021] 1. This high-efficiency nested motor stator and rotor structure has a rotor assembly that rotates, and the rotating shaft inside it rotates inside the stator assembly and the detection mechanism. When the position of the rotor assembly changes due to bearing wear or displacement, the rotor assembly will vibrate eccentrically during rotation. The vibration of the rotating shaft will press the extrusion plate, and the extrusion plate will press the extrusion head. The extrusion head compresses the arc spring and squeezes it onto the extrusion switch, thereby controlling the alarm through the extrusion switch. The alarm reminds the user to maintain the worn or displaced components, avoiding the situation where the rotor offset causes uneven air gap and distortion of the motor's magnetic field distribution, thereby preventing the motor's torque fluctuation from affecting its output performance.

[0022] 2. The high-efficiency nested motor stator and rotor structure has a positioning assembly arranged in a ring shape, and multiple groups of fixing plates are provided and distributed in a ring shape on the adjusting device, so that the eccentric vibration of the rotating shaft of the rotor assembly in any direction can squeeze the corresponding fixing plate, thereby causing the alarm to sound, and the eccentric vibration can be accurately identified, with better use effect.

[0023] 3. The high-efficiency nested motor stator and rotor structure is provided with an adjustment device. When the motor is used for a long time and the extrusion plate is worn, the extrusion piston can be rotated. The extrusion piston is pushed by the thread to move toward the inside of the capillary tube, squeezing the hydraulic oil inside the capillary tube. The pressure inside the capillary tube increases, and the pressure is transmitted to the inside of the annular hydraulic tube through the thick tube. The pressure inside the annular hydraulic tube acts on the inside of the piston tube, pushing the adjustment piston inside the piston tube outward. When the adjustment piston moves outward, it drives the extrusion plate toward the rotating axis of the rotor assembly, thereby filling the gap caused by wear through the movement of the extrusion plate, avoiding the situation where the alarm system becomes insensitive due to wear of the extrusion plate after long-term use, so that the alarm system can operate reliably for a long time.

[0024] 4. This high-efficiency nested motor stator and rotor structure is provided with a rotor assembly. When in use, the rotating shaft drives the rotor coil to rotate. During the rotation of the rotor coil, the heat dissipation fan blades thereon are driven to rotate. The rotation of the heat dissipation fan blades drives air circulation to dissipate heat from the internal components of the motor. A heat dissipation groove is provided on the rotor coil, and the heat dissipation groove can increase the contact area with the air, thereby facilitating the improvement of heat dissipation efficiency. The heat dissipation fan blades are arranged in an arc shape, and the airflow can be guided into the heat dissipation groove through the arc-shaped heat dissipation fan blades, so that the heat dissipation effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the stator and rotor structure of a high-efficiency nested motor according to the present invention;

[0026] Figure 2 This is a schematic diagram of the connection structure of the detection mechanism of the present invention;

[0027] Figure 3 Schematic diagram of the detection mechanism structure of the present invention;

[0028] Figure 4 This is a schematic structural diagram of the regulating device of the present invention;

[0029] Figure 5 Schematic diagram of the internal structure of the regulating device of the present invention;

[0030] Figure 6 This is a schematic diagram of the rotor assembly position structure of the present invention;

[0031] Figure 7 Schematic diagram of the rotor assembly structure of the present invention.

[0032] In the figure: 1. Fixed ring; 2. Stator assembly; 3. Rotor assembly; 31. Rotor coil; 32. Rotating shaft; 33. Heat dissipation groove; 34. Heat dissipation fan blade; 35. Extrusion ring; 4. Detection mechanism; 41. Positioning assembly; 42. Adjustment device; 421. Annular hydraulic pipe; 422. Thick pipe; 423. Thin pipe; 424. Extrusion piston; 425. Piston tube; 426. Adjustment piston; 427. Ring; 428. Tension spring; 43. Fixed plate; 44. Arc spring; 45. Extrusion head; 46. Extrusion switch; 47. Alarm; 48. Extrusion plate. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 5 The present invention provides a technical solution: a high-efficiency nested motor stator and rotor structure, comprising a fixed ring 1, the inner wall of which is fixedly connected to a stator assembly 2, and further comprising:

[0035] a rotor assembly 3, the rotor assembly 3 being arranged inside the stator assembly 2;

[0036] A detection mechanism 4 is provided on one side of the fixed ring 1 and is fixedly connected to the fixed ring 1 via a connecting frame. The detection mechanism 4 is used to detect whether the rotor assembly 3 has wear and displacement;

[0037] The detection mechanism 4 includes:

[0038] A positioning assembly 41 having an annular structure and an adjusting device 42 disposed inside the positioning assembly 41 , the adjusting device 42 being fixedly connected to an inner wall of the positioning assembly 41 ;

[0039] A fixing plate 43 is disposed inside the positioning assembly 41 . One side of the fixing plate 43 is fixedly connected to the adjustment device 42 . An arc spring 44 is fixedly connected to the side of the fixing plate 43 away from the adjustment device 42 . An end of the arc spring 44 away from the fixing plate 43 is fixedly connected to an extrusion head 45 .

[0040] The extrusion switch 46 is provided on the fixed plate 43 , and the extrusion switch 46 is provided opposite to the extrusion head 45 , and the extrusion switch 46 is fixedly connected to the fixed plate 43 ;

[0041] An alarm 47 is provided on the positioning assembly 41 , the alarm 47 is electrically connected to the squeeze switch 46 , and the alarm 47 is fixedly connected to the positioning assembly 41 ;

[0042] One side of the positioning assembly 41 is fixedly connected to the fixing ring 1 through a connecting frame, and the alarm 47 is fixed on the side of the positioning assembly 41 away from the fixing ring 1;

[0043] There are multiple sets of fixing plates 43 distributed in a ring shape on the adjusting device 42. The side of the extrusion head 45 away from the extrusion switch 46 is fixedly connected to the extrusion plate 48.

[0044] When the rotor assembly 3 rotates, the rotating shaft inside it rotates inside the stator assembly 2 and the detection mechanism 4. When the position of the rotor assembly 3 changes due to bearing wear or displacement, the rotor assembly 3 will vibrate eccentrically during rotation. The vibration of the rotating shaft will press the extrusion plate 48, and the extrusion plate 48 will press the extrusion head 45. The extrusion head 45 compresses the arc spring 44 and squeezes it onto the extrusion switch 46, thereby controlling the alarm 47 through the extrusion switch 46 to sound an alarm. The alarm 47 reminds the user to maintain the worn or displaced components, thereby avoiding the situation where the air gap is uneven due to rotor offset and the magnetic field distribution of the motor is distorted, thereby preventing the torque fluctuation of the motor from affecting the output performance of the motor;

[0045] The positioning assembly 41 is provided in an annular shape, and a plurality of fixing plates 43 are provided and distributed in an annular shape on the adjusting device 42, so that the eccentric vibration of the rotating shaft of the rotor assembly 3 in any direction can squeeze the corresponding fixing plate 43, thereby causing the alarm 47 to sound an alarm, and the eccentric vibration can be accurately identified, with a good use effect;

[0046] The adjusting device 42 includes an annular hydraulic pipe 421, one side of the annular hydraulic pipe 421 is connected to a thick pipe 422, and the end of the thick pipe 422 away from the annular hydraulic pipe 421 is connected to a thin pipe 423, the inner wall of the thin pipe 423 is threadedly connected to an extrusion piston 424, the inner side of the annular hydraulic pipe 421 is connected to a piston pipe 425, the inner wall of the piston pipe 425 is slidably connected to an adjusting piston 426, one end of the adjusting piston 426 extends to the outside of the piston pipe 425, the adjusting piston 426 is sleeved on the end outside the piston pipe 425 and fixedly connected to a collar 427, both sides of the collar 427 are fixedly connected to a tensioning spring 428, the annular hydraulic pipe 421 is arranged inside the positioning assembly 41 and fixedly connected to the inner wall of the positioning assembly 41, the end of the tensioning spring 428 away from the collar 427 is fixedly connected to the side of the annular hydraulic pipe 421, the piston pipe 425 is provided with multiple groups and corresponds to the fixed plate 43 one by one, and the end of the adjusting piston 426 located outside the piston pipe 425 is fixedly connected to the side of the fixed plate 43;

[0047] An adjusting device 42 is provided. When the motor is used for a long time and the extrusion plate 48 is worn, the extrusion piston 424 can be rotated. The extrusion piston 424 moves toward the inside of the thin tube 423 under the push of the thread, squeezing the hydraulic oil inside the thin tube 423. The pressure inside the thin tube 423 increases, and the pressure is transmitted to the inside of the annular hydraulic tube 421 through the thick tube 422. The pressure inside the annular hydraulic tube 421 acts on the inside of the piston tube 425, pushing the adjusting piston 426 inside the piston tube 425 outward. When the adjusting piston 426 moves outward, it drives the extrusion plate 48 to move toward the rotating axis of the rotor assembly 3, so that the gap caused by wear is filled by the movement of the extrusion plate 48, thereby avoiding the situation where the alarm system becomes insensitive due to wear of the extrusion plate 48 after long-term use, so that the alarm system can operate reliably for a long time.

[0048] See also Figure 1-Figure 7 The present invention provides a technical solution: the rotor assembly 3 includes a rotor coil 31, a rotating shaft 32 is passed through the center of the rotor coil 31 and is fixedly connected, a heat dissipation groove 33 is opened on the side of the short-circuit ring of the rotor coil 31, and a heat dissipation fan blade 34 corresponding to the heat dissipation groove 33 is fixedly connected to the short-circuit ring of the rotor coil 31, and an extrusion ring 35 is sleeved and fixedly connected to one end of the rotating shaft 32, and the heat dissipation groove 33 and the heat dissipation fan blade 34 are provided in multiple groups and correspond to each other one by one, and the heat dissipation fan blade 34 is arranged in an arc shape, the rotating shaft 32 passes through the detection mechanism 4, and the extrusion ring 35 is arranged at the center of the detection mechanism 4;

[0049] A rotor assembly 3 is provided. When in use, the rotating shaft 32 drives the rotor coil 31 to rotate. During the rotation of the rotor coil 31, the heat dissipation fan blades 34 thereon are driven to rotate. The rotation of the heat dissipation fan blades 34 drives air circulation to dissipate heat from the internal components of the motor. A heat dissipation groove 33 is provided on the rotor coil 31. The heat dissipation groove 33 can increase the contact area with the air, thereby facilitating the improvement of the heat dissipation efficiency. The heat dissipation fan blades 34 are arranged in an arc shape, and the airflow can be guided into the interior of the heat dissipation groove 33 through the arc-shaped heat dissipation fan blades 34, so that the heat dissipation effect is better.

[0050] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A high-efficiency nested motor stator and rotor structure, comprising a fixing ring (1), wherein the inner wall of the fixing ring (1) is fixedly connected to a stator assembly (2), characterized in that: Also includes: A rotor assembly (3), the rotor assembly (3) being arranged inside the stator assembly (2); A detection mechanism (4), the detection mechanism (4) being arranged on one side of the fixed ring (1), the detection mechanism (4) being fixedly connected to the fixed ring (1) via a connecting frame, and the detection mechanism (4) being used to detect whether the rotor assembly (3) has generated wear displacement; The detection mechanism (4) comprises: A positioning assembly (41), the positioning assembly (41) having an annular structure, and an adjusting device (42) disposed inside the positioning assembly (41), the adjusting device (42) being fixedly connected to an inner wall of the positioning assembly (41); A fixed plate (43), the fixed plate (43) being arranged inside the positioning assembly (41), one side of the fixed plate (43) being fixedly connected to the adjustment device (42), a side of the fixed plate (43) away from the adjustment device (42) being fixedly connected to an arc spring (44), and an end of the arc spring (44) away from the fixed plate (43) being fixedly connected to an extrusion head (45); An extrusion switch (46), the extrusion switch (46) being arranged on the fixed plate (43), the extrusion switch (46) being arranged opposite the extrusion head (45), and the extrusion switch (46) being fixedly connected to the fixed plate (43); An alarm (47), the alarm (47) being arranged on the positioning assembly (41), the alarm (47) being electrically connected to the squeeze switch (46), and the alarm (47) being fixedly connected to the positioning assembly (41); The regulating device (42) includes an annular hydraulic tube (421), one side of the annular hydraulic tube (421) is connected to a thick tube (422), one end of the thick tube (422) away from the annular hydraulic tube (421) is connected to a thin tube (423), the inner wall of the thin tube (423) is threadedly connected to an extrusion piston (424), the inner side surface of the annular hydraulic tube (421) is connected to a piston tube (425), the inner wall of the piston tube (425) is slidably connected to an regulating piston (426), one end of the regulating piston (426) extends to the outside of the piston tube (425), and the end of the regulating piston (426) located outside the piston tube (425) is sleeved and fixedly connected to a collar (427), and both sides of the collar (427) are fixedly connected to tension springs (428); The annular hydraulic pipe (421) is arranged inside the positioning assembly (41) and fixedly connected to the inner wall of the positioning assembly (41); one end of the tension spring (428) away from the collar (427) is fixedly connected to the side of the annular hydraulic pipe (421); The piston tubes (425) are provided in multiple groups and correspond one to one with the fixed plates (43). One end of the regulating piston (426) located outside the piston tube (425) is fixedly connected to the side of the fixed plate (43).

2. The high-efficiency nested motor stator and rotor structure according to claim 1, characterized in that: One side of the positioning component (41) is fixedly connected to the fixing ring (1) via a connecting frame, and the alarm (47) is fixed on a side of the positioning component (41) away from the fixing ring (1).

3. The high-efficiency nested motor stator and rotor structure according to claim 1, characterized in that: The fixing plates (43) are provided in multiple groups and distributed in a ring shape on the adjusting device (42), and the side of the extrusion head (45) away from the extrusion switch (46) is fixedly connected to the extrusion plate (48).

4. The high-efficiency nested motor stator and rotor structure according to claim 1, characterized in that: The rotor assembly (3) comprises a rotor coil (31), a rotating shaft (32) passing through the center of the rotor coil (31) and fixedly connected thereto, a heat dissipation groove (33) being provided on the side of the short-circuit ring of the rotor coil (31), a heat dissipation fan blade (34) corresponding to the heat dissipation groove (33) being fixedly connected to the short-circuit ring of the rotor coil (31), and an extrusion ring (35) being sleeved on and fixedly connected to one end of the rotating shaft (32).

5. The high-efficiency nested motor stator and rotor structure according to claim 4, characterized in that: The heat dissipation slots (33) and the heat dissipation blades (34) are provided in multiple groups and correspond one to one, and the heat dissipation blades (34) are arranged in an arc shape.

6. The high-efficiency nested motor stator and rotor structure according to claim 4, characterized in that: The rotating shaft (32) passes through the detection mechanism (4), and the extrusion ring (35) is arranged at the center of the detection mechanism (4).

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