Start control device of three-phase asynchronous motor

Abstract

The invention relates to the technical field of motors, in particular to a starting control device of a three-phase asynchronous motor, which comprises a motor body. A main power clamping device; two groups of auxiliary clamping devices; an adjusting device; and a cold circulation cooling device. The main power clamping device and the two sets of auxiliary clamping devices are combined to clamp and fix the joint of the output shaft of the motor, three-point positioning is conducted on the surface of a coupler connected to the output shaft of the motor, and normal transmission work of the surface of the coupler is guaranteed while stable clamping is achieved in a roller positioning mode; meanwhile, the rotating speed of the rolling wheel is regulated and controlled according to the rotating speed of the motor, then the cold circulation cooling device is combined to achieve the effect of cold air flow adaptive circulation supply, transmission kinetic energy of the output shaft of the motor is fully utilized, and the service life of the motor is prolonged. And the cooling circulation is driven to realize the effect of uniformly radiating and cooling the whole motor.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and particularly to a starting control device for a three-phase asynchronous motor. Background Art

[0002] A three-phase asynchronous motor is a type of induction motor. After current is applied to the stator, part of the magnetic flux passes through the short-circuit ring and induces an electric current therein. The current in the short-circuit ring impedes the change of the magnetic flux, resulting in a phase difference between the magnetic fluxes generated in the part with the short-circuit ring and the part without the short-circuit ring, thus forming a rotating magnetic field. After starting with power on, the rotor winding induces an electromotive force and current due to the relative motion with the magnetic field, that is, there is a relative rotational speed between the rotating magnetic field and the rotor, and they interact with each other to generate an electromagnetic torque, causing the rotor to rotate and realizing energy conversion. During the operation of industrial production and mechanical equipment, the three-phase asynchronous motor is widely used due to its advantages such as simple structure and reliable operation.

[0003] However, there are still many problems in the existing starting control devices for three-phase asynchronous motors. Traditional starting devices mainly focus on the electrical control part and pay insufficient attention to the collaborative optimization of the mechanical structure. As a result, during the starting process, the connection between the motor and the transmission mechanism is not stable enough, prone to vibration and impact, affecting the service life and operation accuracy of the equipment. Moreover, with the continuous use of the motor, the transmission coupling connected to the motor output shaft has the problem of wear in use. After wear, voids will be generated at its connection, further intensifying the vibration at the subsequent transmission part. At the same time, the heat dissipation performance of the existing device is not good. When the current increases and the heat generation intensifies instantaneously during the motor starting, it cannot dissipate heat in a timely and effective manner, further reducing the reliability and stability of the equipment. In view of this, we propose a starting control device for a three-phase asynchronous motor. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a starting control device for a three-phase asynchronous motor, which solves the problems raised in the above-mentioned background art. To achieve the above objectives, the present invention is realized through the following technical solutions: A starting control device for a three-phase asynchronous motor includes a motor body; a main power clamping device, the main power clamping device is arranged at one end of the motor body, the main power clamping device includes a main connection base, one end of the main connection base is fixedly installed on the motor body, the other end of the main connection base is fixedly connected with a main positioning sleeve, a main limiting head is slidably connected inside the main positioning sleeve, a main screw rod is fixedly connected to the main limiting head, the end of the main screw rod is fixedly connected with a main clamping seat, an airbag rubber clamping wheel is rotatably connected inside the main clamping seat, one end of the main positioning sleeve is rotatably connected with a main bevel gear, and the inside of the main bevel gear is threadedly connected with the surface of the main screw rod; two sets of auxiliary clamping devices, the two sets of auxiliary clamping devices are symmetrically arranged at one end of the motor body; an adjusting device, the adjusting device is arranged on the main connection base; a cold cycle cooling device, the cold cycle cooling device is arranged on the motor body.

[0005] Preferably, the airbag rubber clamping wheel includes a through-axis, both ends of the through-axis are rotatably connected inside the main clamping seat, a rubber wheel is fixedly connected to the through-axis, and a plurality of elastic airbags distributed in a circular array are fixedly connected to the surface of the rubber wheel, and the plurality of elastic airbags are respectively fixedly connected to the surface of the through-axis through a communication seat.

[0006] Preferably, a plurality of communication grooves corresponding to the number and position of the communication seats are formed on the through-axis, and a one-way intake pipe and a one-way exhaust pipe are respectively fixedly connected to both ends of the through-axis.

[0007] Preferably, a protective mesh cover is fixedly connected to the surface of the main clamping seat close to the one-way intake pipe, and a diversion groove is formed inside the main clamping seat close to the other side of the one-way exhaust pipe.

[0008] Preferably, the cold cycle cooling device includes a starting chamber, the starting chamber is fixedly installed on the motor body, a motor protective sleeve seat is fixedly connected to the starting chamber, a cooling base is fixedly connected inside the starting chamber, a semiconductor refrigerator is fixedly installed on one side inside the cooling base, a plurality of flow guiding plates are fixedly connected to the other side inside the cooling base, a connecting pipe is fixedly connected to the cooling base, and the end of the connecting pipe far away from the cooling base is fixedly connected with an inner through pipe.

[0009] Preferably, one side of the cooling base is communicated with the inside of the motor protective sleeve seat through a hole groove, an exhaust seat is fixedly connected to the other side of the motor protective sleeve seat close to the cooling base, a circulation cavity is formed inside the motor protective sleeve seat, the motor protective sleeve seat is sleeved on the motor body, and the inside of the motor protective sleeve seat is fixedly connected to the surface of the starting chamber.

[0010] Preferably, the inner through pipe penetrates through the main limiting head and is slidably connected inside the main screw rod, and the inner through pipe is communicated with the inside of the diversion groove through the main screw rod.

[0011] Preferably, the adjusting device includes a meshing bevel gear disk. One end of the meshing bevel gear disk is rotatably connected inside the main connection base. The other end of the meshing bevel gear disk meshes with the main bevel gear through bevel gear teeth. A positioning tooth seat is clamped on the surface of the meshing bevel gear disk through teeth, and the positioning tooth seat is slidably connected to the main connection base.

[0012] Preferably, a first magnetic plate and a second magnetic plate are respectively fixedly connected to the main connection base, and the inside of the positioning tooth seat is magnetically connected to the surface of the first magnetic plate.

[0013] Preferably, the secondary clamping device includes a secondary connection base. One end of the secondary connection base is fixedly installed on the motor body. The other end of the secondary connection base is fixedly connected with a secondary positioning sleeve. A secondary limiting head is slidably connected inside the secondary positioning sleeve. A secondary screw rod is fixedly connected to the secondary limiting head. A secondary clamping seat is fixedly connected to the end of the secondary screw rod. A stable clamping wheel is rotatably connected inside the secondary clamping seat. A secondary bevel gear is rotatably connected to one end of the secondary positioning sleeve. The inside of the secondary bevel gear is threadedly connected to the surface of the secondary screw rod, and the surface of the secondary bevel gear meshes with the end of the meshing bevel gear disk.

[0014] As can be seen from the above technical solutions, a starting control device for a three-phase asynchronous motor provided by the embodiments of this specification has at least the following beneficial effects: 1. The present invention combines the main power clamping device and two groups of secondary clamping devices to clamp and fix the connection of the motor output shaft. By performing three-point positioning on the surface of the coupling connected to the motor output shaft and adopting the method of roller positioning, while achieving stable clamping, it ensures the normal transmission work on the surface of the coupling, thereby avoiding the problem that the connection between the motor output shaft and the transmission mechanism becomes unstable due to factors such as wear and tear, resulting in vibration and impact. At the same time, the roller speed is regulated according to the motor speed, and then the effect of adaptively circulating the supply of cold air flow is achieved by combining the cold circulation cooling device, making full use of the driving kinetic energy of the motor output shaft to drive the cooling cycle to achieve the effect of uniformly dissipating heat and cooling the whole motor.

[0015] 2. The present invention adjusts the positions of the rollers in the main power clamping device and the two groups of secondary clamping devices simultaneously through the adjusting device, and combines the corresponding structures to achieve the self-locking positioning of the rollers, so as to achieve the effect of adjustably clamping different types of couplings, improve the flexibility of the overall mechanical structure of the motor, and meet the starting requirements of three-phase asynchronous motors of different models and under different working conditions.

[0016] 3. During the clamping and positioning of the coupling by the airbag rubber clamping wheel of the present invention, the rolling extrusion of multiple elastic airbags is utilized to provide power for the flow of unidirectional air. Through the connection effect acting in the motor protective sleeve seat, the effect of automatically driving the air to flow and cool is achieved. Moreover, the flow rate of the air is proportional to the rotation rate of the motor output shaft, further realizing the effect that the cooling effect automatically adapts to the working state of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application: Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the active force clamping device in the present invention; Figure 3 Schematic diagram of the internal structure of the main positioning sleeve in the present invention; Figure 4 Schematic diagram of the internal structure of the rubber wheel in the present invention; Figure 5 Schematic diagram of the structure at the through-shaft in the present invention; Figure 6 Schematic diagram of the structure at the elastic airbag in the present invention; Figure 7 Schematic diagram of the internal structure of the starting chamber in the present invention; Figure 8 Schematic diagram of the cooling base structure in the present invention; Figure 9 Schematic diagram of the structure of the motor protective sleeve seat in the present invention; Figure 10 Schematic diagram of the sectional structure of the motor protective sleeve seat in the present invention; Figure 11 Schematic diagram of the structure at the inner through-tube in the present invention; Figure 12 Schematic diagram of the structure of the auxiliary clamping device in the present invention; Figure 13 Schematic diagram of the structure of the adjusting device in the present invention; Figure 14 Schematic diagram of the structure of the main connection base in the present invention.

[0018] In the figure: 1. Motor body; 2. Main power clamping device; 21. Main connection base; 211. Magnetic plate 1; 212. Magnetic plate 2; 22. Main positioning sleeve; 23. Main limit head; 24. Main screw rod; 25. Main clamping seat; 251. Protective net cover; 252. Flow guiding groove; 26. Airbag rubber clamping wheel; 261. Central through shaft; 262. Rubber wheel; 263. Elastic airbag; 264. Connecting seat; 265. One-way intake pipe; 266. One-way exhaust pipe; 27. Main bevel gear; 3. Sub-clamping device; 31. Sub-connection base; 32. Sub-positioning sleeve; 33. Sub-limit head; 34. Sub-screw rod; 35. Sub-clamping seat; 36. Stable clamping wheel; 37. Sub-bevel gear; 4. Adjusting device; 41. Meshing bevel gear disc; 42. Positioning tooth seat; 5. Cold cycle cooling device; 51. Starting chamber; 52. Motor protective sleeve seat; 53. Cooling base; 54. Semiconductor refrigerator; 55. Flow dividing plate; 56. Hole groove; 57. Connecting pipe; 58. Inner through pipe; 59. Exhaust seat. Detailed implementation manners

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-14As shown in the figure, a starting control device for a three-phase asynchronous motor includes a motor body 1; a main power clamping device 2, which is arranged at one end of the motor body 1. The main power clamping device 2 includes a main connection base 21. One end of the main connection base 21 is fixedly installed on the motor body 1, and the other end of the main connection base 21 is fixedly connected with a main positioning sleeve 22. Inside the main positioning sleeve 22, a main limiting head 23 is connected in a limited sliding manner through a keyway. A main screw rod 24 is fixedly connected to the main limiting head 23, and the end of the main screw rod 24 is fixedly connected with a main clamping seat 25. The main limiting head 23 restricts the main screw rod 24 to move only linearly. Inside the main clamping seat 25, an airbag rubber clamping wheel 26 is rotatably connected. One end of the main positioning sleeve 22 is rotatably connected with a main bevel gear 27. A threaded groove is opened inside the main bevel gear 27, and the main bevel gear 27 is threadedly connected to the surface of the main screw rod 24 through this threaded groove. By driving the rotation of the main bevel gear 27, the main screw rod 24, which is threadedly connected inside it and linearly limited, is adjusted to move, and then the position of the airbag rubber clamping wheel 26 is adjusted, achieving the effect of adaptively clamping the surfaces of couplings of different sizes and models; two groups of auxiliary clamping devices 3, which are symmetrically arranged at one end of the motor body 1; an adjusting device 4, which is arranged on the main connection base 21; a cold circulation cooling device 5, which is arranged on the motor body 1. The main power clamping device 2 and the two groups of auxiliary clamping devices 3 are combined to clamp and fix the coupling at the output shaft connection of the motor body 1. The airbag rubber clamping wheel 26 and the internal structures of the two groups of auxiliary clamping devices 3 form three rollers. The roller positioning method is used to ensure stable clamping while ensuring the normal transmission work on the surface of the coupling, thus avoiding the problem of unstable connection between the output shaft of the motor body 1 and the transmission mechanism and resulting in vibration and impact due to factors such as wear. At the same time, the rotation speed of the airbag rubber clamping wheel 26 is regulated according to the rotation speed of the motor body 1, and then combined with the cold circulation cooling device 5 to achieve the effect of adaptively circulating and supplying cold air flow, making full use of the transmission kinetic energy of the output shaft of the motor body 1 to drive the cooling cycle to achieve the effect of uniformly dissipating heat and cooling the whole motor body 1.

[0021] In this embodiment, the airbag rubber clamping wheel 26 includes a through-axis 261. Both ends of the through-axis 261 are rotatably connected inside the main clamping seat 25. A rubber wheel 262 is fixedly connected to the through-axis 261. A plurality of elastic airbags 263 distributed in a circular array are fixedly connected to the surface of the rubber wheel 262. The plurality of elastic airbags 263 are respectively fixedly connected to the surface of the through-axis 261 through a communication seat 264. The airbag rubber clamping wheel 26 is used for positioning and clamping the coupling, and the airbag rubber clamping wheel 26 as a whole adopts the shape of a roller, which can ensure the normal transmission work on the surface of the coupling while realizing stable clamping. By setting the plurality of elastic airbags 263, when the rubber wheel 262 rotates, the property of continuous extrusion, release, rebound and air replenishment of the plurality of elastic airbags 263 can be used to provide the flow power for the cold air flow in the cold circulation cooling device 5.

[0022] Furthermore, a plurality of communication grooves corresponding to the number and position of the communication seats 264 are provided on the through-axis 261. A one-way intake pipe 265 and a one-way exhaust pipe 266 are respectively fixedly connected to both ends of the through-axis 261. A protective net cover 251 is fixedly connected to the surface of the main clamping seat 25 near the one-way intake pipe 265. The protective net cover 251 is used for filtering the gas supplemented into the one-way intake pipe 265. A diversion groove 252 is provided inside the main clamping seat 25 near the one-way exhaust pipe 266. The air flow path is as follows: outside the main clamping seat 25, inside the one-way intake pipe 265, through the through-axis 261, into the elastic airbag 263, and then back to the through-axis 261 after extrusion, and then discharged to the diversion groove 252 through the one-way exhaust pipe 266.

[0023] Furthermore, the cold cycle cooling device 5 includes a starting chamber 51 fixedly installed on the motor body 1. A motor protective sleeve seat 52 is fixedly connected to the starting chamber 51. A cooling base 53 is fixedly connected inside the starting chamber 51. A semiconductor refrigerator 54 is fixedly installed on one side inside the cooling base 53. On the other side inside the cooling base 53, a plurality of flow-diverting plates 55 are fixedly connected. The plurality of flow-diverting plates 55 are distributed in the cooling base 53 in the form of multiple groups of arrays with two baffles as a group, and the positions of the two baffles are staggered, thereby achieving the effect of increasing the gas flow path inside the cooling base 53 and realizing the effect of the semiconductor refrigerator 54 fully cooling the flowing air. A connecting pipe 57 is fixedly connected to the cooling base 53. One end of the connecting pipe 57 away from the cooling base 53 is fixedly connected to an inner through pipe 58. The inner through pipe 58 passes through the main limit head 23 and is slidably connected inside the main screw 24, and the inner through pipe 58 is communicated with the inside of the diversion groove 252 through the main screw 24. One side of the cooling base 53 is communicated with the inside of the motor protective sleeve seat 52 through a hole groove 56. An exhaust seat 59 is fixedly connected to the other side of the motor protective sleeve seat 52 close to the cooling base 53. A flow cavity is provided inside the motor protective sleeve seat 52. The motor protective sleeve seat 52 is sleeved on the motor body 1. The subsequent flow path of the gas in the diversion groove 252 is: the inside of the main screw 24, the inner through pipe 58, the connecting pipe 57, the cooling base 53, the cavity inside the motor protective sleeve seat 52, and finally discharged from the exhaust seat 59 inside the motor protective sleeve seat 52. During the gas flow, it passes through the cooling base 53 and is assisted in cooling by the semiconductor refrigerator 54 inside the cooling base 53. When the cooled cold air flows inside the motor protective sleeve seat 52, the effect of cooling the motor protective sleeve seat 52 is achieved. The motor protective sleeve seat 52 is close to the motor body 1, so as to transfer the temperature of the cold air flow to the motor body 1, and the effect of quickly cooling the motor body 1 is realized by using the temperature transferability. At the same time, the kinetic energy transmitted by the output shaft of the motor body 1 is fully utilized, and the inside of the motor protective sleeve seat 52 is fixedly connected to the surface of the starting chamber 51. The rotational speeds of the output shaft of the motor body 1, the coupling, and the airbag rubber pulley 26 are proportional. The rotational speed of the rubber wheel 262 positively affects the extrusion frequency of the elastic airbag 263, and then affects the frequency and flow rate of the one-way air flow supplement, so as to achieve the effect that when the power of the motor body 1 is greater and the heat accumulation is more serious, the air flow cooling rate is higher, and the purpose of adaptively cooling the whole motor body 1 is achieved.

[0024] In addition, the adjusting device 4 includes a meshing bevel gear disc 41. One end of the meshing bevel gear disc 41 is rotatably connected inside the main connection base 21. The other end of the meshing bevel gear disc 41 meshes with the main bevel gear 27 through bevel gear teeth. A positioning tooth seat 42 is clamped on the surface of the meshing bevel gear disc 41 through teeth. The positioning tooth seat 42 is slidably connected to the main connection base 21. By rotating the meshing bevel gear disc 41, the main bevel gear 27 rotates. When the main bevel gear 27 rotates, it drives the main screw rod 24 that is threadedly connected inside it and linearly limited to move. The main screw rod 24 drives the airbag rubber clamping wheel 26 as a whole to move towards the coupling through the main clamping seat 25. By adjusting the rotation angle of the meshing bevel gear disc 41, the position of the airbag rubber clamping wheel 26 is adjusted, and then the effect of adaptively clamping the surfaces of couplings of different sizes and models is achieved.

[0025] It should be noted that a first magnetic plate 211 and a second magnetic plate 212 are respectively fixedly connected to the main connection base 21. The inside of the positioning tooth seat 42 is magnetically connected to the surface of the first magnetic plate 211. By moving the positioning tooth seat 42, the positioning tooth seat 42 that was originally magnetically fixed to the first magnetic plate 211 is transferred to the second magnetic plate 212 for magnetic fixation. After moving, the positioning tooth seat 42 loses the clamping effect with the meshing bevel gear disc 41. At this time, the operator directly rotates the meshing bevel gear disc 41, and then achieves the effect of facilitating the movement of the meshing bevel gear disc 41 while providing the fixing stability of the meshing bevel gear disc 41.

[0026] It should be explained that the secondary clamping device 3 includes a secondary connection base 31. One end of the secondary connection base 31 is fixedly installed on the motor body 1. The other end of the secondary connection base 31 is fixedly connected to a secondary positioning sleeve 32. A secondary limiting head 33 is slidably connected inside the secondary positioning sleeve 32. A secondary screw rod 34 is fixedly connected to the secondary limiting head 33. The end of the secondary screw rod 34 is fixedly connected to a secondary clamping seat 35. A stable clamping wheel 36 is rotatably connected inside the secondary clamping seat 35. One end of the secondary positioning sleeve 32 is rotatably connected to a secondary bevel gear 37. The inside of the secondary bevel gear 37 is threadedly connected to the surface of the secondary screw rod 34, and the surface of the secondary bevel gear 37 meshes with the end of the meshing bevel gear disc 41. The stable clamping wheels 36 in the two secondary clamping devices 3 and the airbag rubber clamping wheel 26 form three groups of rollers. By using the roller positioning method, while achieving stable clamping, it ensures the normal transmission work on the surface of the coupling, and then avoids the problem of unstable connection between the output shaft of the motor body 1 and the transmission mechanism and the resulting vibration and impact due to factors such as wear. At the same time, when rotating one meshing bevel gear disc 41, the effect of simultaneously meshing the main bevel gear 27 and the two secondary bevel gears 37 can be achieved, and then the effect of simultaneously adjusting the two stable clamping wheels 36 and one airbag rubber clamping wheel 26 can be achieved.

[0027] When a starting control device for a three-phase asynchronous motor of the present invention is in use, after installing the coupling of the transmission mechanism on the output shaft of the motor body 1, at this time, the coupling at the connection is located between two stable clamping wheels 36 and an airbag rubber clamping wheel 26. By moving the positioning tooth seat 42, the positioning tooth seat 42 originally magnetically fixed to the magnetic plate one 211 is transferred to the magnetic plate two 212 for magnetic fixation. After moving, the positioning tooth seat 42 loses the clamping effect with the meshing bevel gear disk 41. At this time, the operator directly rotates the meshing bevel gear disk 41. When the meshing bevel gear disk 41 rotates, the main bevel gear 27 and two sub-bevel gears 37 rotate simultaneously. When the main bevel gear 27 rotates, it drives the main screw rod 24 that is internally threaded and linearly limited to move. The main screw rod 24 drives the airbag rubber clamping wheel 26 as a whole to move towards the coupling through the main clamping seat 25. Correspondingly, the two stable clamping wheels 36 also move towards the coupling synchronously. By adjusting the rotation angle of the meshing bevel gear disk 41, the position adjustment of the airbag rubber clamping wheel 26 and the two stable clamping wheels 36 is realized, and then the effect of adaptively clamping the surfaces of couplings of different sizes and models is achieved. At the same time, the airbag rubber clamping wheel 26 and the two stable clamping wheels 36 are distributed on the surface of the coupling in the form of three rollers, which not only achieves the effect of clamping and positioning, but also achieves the purpose of ensuring the normal transmission work on the surface of the coupling, and then avoids the problem that the connection between the output shaft of the motor body 1 and the transmission mechanism is unstable due to factors such as wear and tear, resulting in vibration and impact.When the motor body 1 is working, the semiconductor cooler 54 is started synchronously. The semiconductor cooler 54 cools the gas inside the cooling base 53. At the same time, since the rubber wheel 262 inside the airbag rubber clamping wheel 26 is driven correspondingly during the period of clamping and positioning the coupling by the rotation of the coupling, the rubber wheel 262 drives a plurality of elastic airbags 263 thereon to sequentially squeeze the coupling during rotation, achieving the effect of continuous squeezing, releasing, rebounding and air replenishing of the gas in the plurality of elastic airbags 263 during rotation. The gas in the elastic airbag 263 is unidirectionally discharged into the diversion groove 252 through the one-way outlet pipe 266 after being squeezed, and replenishes gas from the outside of the coupling of the main clamp seat 25 through the one-way inlet pipe 265 during rebounding, thus achieving the effect of automatic unidirectional gas replenishment. The overall air flow path is as follows: outside the main clamp seat 25, inside the one-way inlet pipe 265, through the through shaft 261, into the elastic airbag 263. After being squeezed, it returns from the elastic airbag 263 into the through shaft 261, and then is discharged through the one-way outlet pipe 266. Then it passes through the diversion groove 252, the inside of the main screw 24, the inner through pipe 58, the connecting pipe 57, the cooling base 53, the cavity inside the motor protective sleeve seat 52, and finally is discharged from the exhaust seat 59 inside the motor protective sleeve seat 52. During the gas flow, it passes through the cooling base 53 and is assisted in cooling by the semiconductor cooler 54 inside the cooling base 53. When the cooled cold air flow passes through the inside of the motor protective sleeve seat 52, it cools the motor protective sleeve seat 52. The motor protective sleeve seat 52 is close to the motor body 1, so as to transfer the temperature of the cold air flow to the motor body 1, achieving the effect of quickly cooling the motor body 1 by using the temperature transfer property. At the same time, making full use of the driving kinetic energy of the output shaft of the motor body 1, the rotational speeds of the output shaft of the motor body 1, the coupling, and the airbag rubber clamping wheel 26 are proportional. The rotational speed of the rubber wheel 262 positively affects the squeezing frequency of the elastic airbag 263, and then affects the frequency and flow rate of the unidirectional air flow replenishment, so as to achieve the effect that when the power of the motor body 1 is greater and the heat accumulation is more serious, the cooling rate of the air flow circulation is higher, achieving the purpose of adaptively cooling the whole motor body 1.

[0028] The above embodiments are only used to illustrate the embodiments of the present invention, rather than to limit the embodiments of the present invention. Those of ordinary skill in the relevant technical fields can also make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present invention. The patent protection scope of the embodiments of the present invention shall be defined by the claims.

Claims

1. A starting control device for a three-phase asynchronous motor, characterized in that Including: Motor body (1); Active force clamping device (2), the active force clamping device (2) is arranged at one end of the motor body (1), the active force clamping device (2) includes a main connection base (21), one end of the main connection base (21) is fixedly installed on the motor body (1), the other end of the main connection base (21) is fixedly connected with a main positioning sleeve (22), a main limiting head (23) is slidably connected inside the main positioning sleeve (22), a main screw rod (24) is fixedly connected to the main limiting head (23), the end of the main screw rod (24) is fixedly connected with a main clamping seat (25), an airbag rubber clamping wheel (26) is rotatably connected inside the main clamping seat (25), one end of the main positioning sleeve (22) is rotatably connected with a main bevel gear (27), and the inside of the main bevel gear (27) is threadedly connected with the surface of the main screw rod (24); Two groups of secondary clamping devices (3), the two groups of secondary clamping devices (3) are symmetrically arranged at one end of the motor body (1); Adjusting device (4), the adjusting device (4) is arranged on the main connection base (21); Cold cycle cooling device (5), the cold cycle cooling device (5) is arranged on the motor body (1).

2. The starting control device of a three-phase asynchronous motor according to claim 1, characterized in that: The airbag rubber clamping wheel (26) includes a through shaft (261), both ends of the through shaft (261) are rotatably connected inside the main clamping seat (25), a rubber wheel (262) is fixedly connected to the through shaft (261), a plurality of elastic airbags (263) distributed in a circular array are fixedly connected to the surface of the rubber wheel (262), and the plurality of elastic airbags (263) are respectively fixedly connected to the surface of the through shaft (261) through a communication seat (264).

3. The starting control device for a three-phase asynchronous motor according to claim 2, characterized in that: A plurality of communication grooves corresponding to the number and position of the communication seats (264) are formed on the through shaft (261), and a one-way intake pipe (265) and a one-way exhaust pipe (266) are respectively fixedly connected to both ends of the through shaft (261).

4. The starting control device of a three-phase asynchronous motor according to claim 3, characterized in that: A protective mesh cover (251) is fixedly connected to the surface of the main clamping seat (25) close to the one-way intake pipe (265), and a diversion groove (252) is formed inside the main clamping seat (25) close to the one-way exhaust pipe (266).

5. The starting control device of a three-phase asynchronous motor according to claim 2, characterized in that: The cold cycle cooling device (5) includes a starting chamber (51), the starting chamber (51) is fixedly installed on the motor body (1), a motor protective sleeve seat (52) is fixedly connected to the starting chamber (51), a cooling base (53) is fixedly connected inside the starting chamber (51), a semiconductor refrigerator (54) is fixedly installed on one side inside the cooling base (53), a plurality of flow guiding plates (55) are fixedly connected to the other side inside the cooling base (53), a communication pipe (57) is fixedly connected to the cooling base (53), and an inner through pipe (58) is fixedly connected to the end of the communication pipe (57) far from the cooling base (53).

6. The starting control device of a three-phase asynchronous motor according to claim 5, characterized in that: One side of the cooling base (53) is communicated with the inside of the motor protective sleeve base (52) through a hole groove (56). On the other side of the motor protective sleeve base (52) close to the cooling base (53), an exhaust base (59) is fixedly connected. A circulation cavity is formed inside the motor protective sleeve base (52). The motor protective sleeve base (52) is sleeved on the motor body (1), and the inside of the motor protective sleeve base (52) is fixedly connected to the surface of the starting chamber (51).

7. The starting control device of a three-phase asynchronous motor according to claim 5, characterized in that: The inner through pipe (58) penetrates through the main limit head (23) and is slidably connected inside the main screw rod (24), and the inner through pipe (58) is communicated with the inside of the diversion groove (252) through the main screw rod (24).

8. The starting control device of a three-phase asynchronous motor according to claim 2, characterized in that: The adjusting device (4) includes a meshing bevel gear disc (41). One end of the meshing bevel gear disc (41) is rotatably connected inside the main connection base (21). The other end of the meshing bevel gear disc (41) meshes with the main bevel gear (27) through bevel gear teeth. A positioning tooth seat (42) is clamped on the surface of the meshing bevel gear disc (41) through teeth. The positioning tooth seat (42) is slidably connected to the main connection base (21).

9. The starting control device of a three-phase asynchronous motor according to claim 8, wherein: A magnetic plate one (211) and a magnetic plate two (212) are respectively fixedly connected to the main connection base (21). The inside of the positioning tooth seat (42) is magnetically connected to the surface of the magnetic plate one (211).

10. The starting control device of a three-phase asynchronous motor according to claim 1, characterized in that: The secondary clamping device (3) includes a secondary connection base (31). One end of the secondary connection base (31) is fixedly installed on the motor body (1). The other end of the secondary connection base (31) is fixedly connected to a secondary positioning sleeve (32). A secondary limit head (33) is slidably connected inside the secondary positioning sleeve (32). A secondary screw rod (34) is fixedly connected to the secondary limit head (33). A secondary clamping seat (35) is fixedly connected to the end of the secondary screw rod (34). A stable clamping wheel (36) is rotatably connected inside the secondary clamping seat (35). One end of the secondary positioning sleeve (32) is rotatably connected to a secondary bevel gear (37). The inside of the secondary bevel gear (37) is threadedly connected to the surface of the secondary screw rod (34), and the surface of the secondary bevel gear (37) meshes with the end of the meshing bevel gear disc (41).

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