CN111817489A - An AC reluctance synchronous motor - Google Patents

Abstract

The invention discloses an AC reluctance synchronous motor, which comprises a casing, a rotating shaft and a fixed bearing seat. The rotating shaft is rotatably connected in the middle of the casing, and the fixed bearing base is nested on both sides of the rotating shaft. The fixed bearing seat and the housing are connected by bolts, a movable bearing is arranged on one side of the fixed bearing seat, the movable bearing is nested on the rotating shaft, and an elastic bearing seat is nested on the periphery of the movable bearing, so A spring is welded on one side of the elastic bearing seat, and a fixing block is welded on one side of the spring, and the fixing block and the housing are connected by bolts. The beneficial effect is that the present invention can provide rotational support to the rotating shaft by arranging the fixed bearing seat, the movable bearing, the elastic bearing seat, the spring and the fixed block, reduce the vibration deviation generated in the process of the rotating shaft, ensure the stable rotation of the rotating shaft, and improve the transmission efficiency of the motor .

Description

An AC reluctance synchronous motor

technical field

The invention relates to the technical field of motors, in particular to an AC reluctance synchronous motor.

Background technique

The reluctance motor is a continuous running electrical transmission device. Its structure and working principle are very different from the traditional AC and DC motors. It does not rely on the interaction of the magnetic fields generated by the stator and rotor winding currents to generate torque. Instead, it relies on the principle of minimum reluctance to generate torque.

The existing AC reluctance synchronous motor mainly outputs power through the rotation of the rotating shaft during operation, and the rotating shaft is prone to vibration deviation during the rotation process, which affects the stability of the rotating shaft and affects the transmission efficiency of the motor. Secondly, the existing AC reluctance synchronous motor A lot of heat will be generated during work, and most motors use fans to dissipate heat and cool down, resulting in poor heat dissipation efficiency, which reduces the working efficiency of the motor. In addition, the existing AC reluctance synchronous motor will generate noise during operation, and the quiet effect is poor. , and the inside of the motor is easy to enter the dust, and the dustproof effect is poor, which affects the use effect of the motor.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an AC reluctance synchronous motor in order to solve the above problems.

The present invention realizes above-mentioned purpose through following technical scheme:

An AC reluctance synchronous motor includes a casing, a rotating shaft and a fixed bearing seat, the rotating shaft is rotatably connected in the middle of the casing, the fixed bearing seat is nested on both sides of the rotating shaft, and the fixed bearing seat is Connected with the housing by bolts, a movable bearing is arranged on one side of the fixed bearing seat, the movable bearing is nested on the rotating shaft, an elastic bearing seat is nested on the periphery of the movable bearing, and the elastic bearing seat is A spring is welded on one side, a fixing block is welded on one side of the spring, and the fixing block and the housing are connected by bolts.

Further, a rotor is nested in the middle of the rotating shaft, a stator iron core is nested in the casing at a position facing the rotor, and a stator winding is wound on the stator iron core.

By adopting the above technical solution, when the rotating shaft rotates, the fixed bearing seat and the movable bearing can provide rotational support, and at the same time, the spring can provide elastic force to the elastic bearing seat, so that the movable bearing can effectively Support the rotating shaft, reduce the vibration deviation generated in the process of rotating the shaft, ensure the stable rotation of the rotating shaft, and improve the transmission efficiency of the motor. The stator core is wound with the stator winding to generate a magnetic field, and the rotor is rotating. When the reluctance in the magnetic field changes, the permeance of the horizontal axis is different from that of the vertical axis, relying on the change of the permeance to generate synchronous torque to keep the motor running at a certain synchronous speed, and then output power through the rotating shaft .

Further, a motor cover is connected to one side of the casing by bolts, an end cover is connected to the other side of the casing by bolts, and a key block is nested at one end of the shaft passing through the end cover.

By adopting the above technical solution, the internal components of the motor can be protected, and the connection between the motor and the external actuator is facilitated through the key block.

Further, a heat dissipation hole is formed on a side wall of the motor cover, and an axial flow fan is connected to one end of the rotating shaft close to the heat dissipation hole by bolts.

By adopting the above technical solution, the axial flow fan will rotate together with the rotating shaft, thereby generating wind power to dissipate heat and lower the temperature of the motor, and dissipate heat in time through the heat dissipation holes.

Further, the inner wall of the casing is bonded with a semiconductor heat sink.

By adopting the above technical solution, the semiconductor heat sink has the same structural principle as the prior art, can absorb and export heat in time, improve the heat dissipation and cooling effect of the motor, ensure the normal working temperature of the motor, improve the working efficiency of the motor, and reduce energy consumption, At the same time, it can avoid the accident of overheating and damage the motor, and improve the safety of use.

Further, one side of the axial flow fan is provided with a second dustproof net, the other side of the axial flow fan is provided with a first dustproof net, one side of the dustproof net is provided with a noise-absorbing cotton, and the dustproof net is provided on one side. One and the noise-absorbing cotton are nested and connected to the motor cover.

By adopting the above technical solution, the entry of dust can be effectively prevented, the cleanliness of the inside of the motor can be ensured, the noise generated by the axial flow fan and the rotation of the rotating shaft can be reduced by the muffler cotton, the quietness of the motor can be improved, and the use effect is good. .

Further, a sealing ring is nested between the end cover and the housing.

By adopting the above technical solution, the compactness of the connection between the end cover and the housing can be ensured.

Further, the middle part of the upper end of the casing is connected with a lifting ring through bolts.

By adopting the above technical solution, it is convenient to lift the motor and improve the transportability of the motor.

Further, a junction box is welded on one side wall of the casing, the bottom of the junction box penetrates the casing, and a box cover is connected to the junction box by bolts.

By adopting the above technical solution, it is convenient to connect an external power source, so that the motor can be powered to work.

Further, a base is welded to the bottom end of the casing, and a through hole is formed on the base.

By adopting the above technical solution, the motor can be provided with stable support, and can be installed and fixed.

The specific working principle is as follows: the lifting ring is used to facilitate the lifting of the motor, which improves the transportability of the motor, and the base provides stable support for the motor. Installation, connect the external power supply through the junction box to make the motor work with electricity, the stator core is wound with the stator winding to generate a magnetic field, when the rotor rotates, the reluctance in the magnetic field will change, and the horizontal The magnetic permeability of the shaft is different from that of the vertical axis. The change of the magnetic permeability generates synchronous torque to maintain the motor running at a certain synchronous speed, and then outputs power through the rotating shaft. When the rotating shaft rotates, the fixed The bearing seat and the movable bearing provide rotational support, and the elastic bearing seat supporting the movable bearing will ensure the stable rotation of the rotating shaft under the elastic force of the spring and reduce the vibration deviation generated during the rotating shaft process. Improve the transmission efficiency of the motor. When the rotating shaft rotates, it can also drive the axial flow fan to rotate, blowing and cooling the inside of the motor, and discharging hot air through the heat dissipation holes, and the semiconductor heat sink can dissipate the heat. Absorb and export in time, improve the heat dissipation and cooling effect of the motor, ensure the normal working temperature of the motor, improve the working efficiency of the motor, reduce energy consumption, at the same time avoid overheating and damage the motor accident, and improve the safety of use. The second dustproof net and the first dustproof net can improve the dustproof effect of the motor, prevent dust from entering, and improve the cleanliness inside the motor. At the same time, the axial flow fan and the rotating shaft can be weakened by the muffler cotton The noise generated by the rotation improves the quietness of the motor work, and the use effect is better, thereby improving the user experience.

The beneficial effects of the present invention are:

1. By setting fixed bearing seat, movable bearing, elastic bearing seat, spring and fixed block, it can provide rotating support for the rotating shaft, reduce the vibration deviation generated in the process of rotating the shaft, ensure the stable rotation of the rotating shaft, and improve the transmission efficiency of the motor;

2. By setting axial flow fans, semiconductor heat sinks and heat dissipation holes, the heat dissipation and cooling effect of the motor can be improved, the working temperature of the motor can be guaranteed to be normal, the working efficiency of the motor can be improved, and the energy consumption can be reduced. safety of use;

3. By setting the second dustproof net, the first dustproof net and the muffler cotton, it can effectively prevent dust from entering, ensure the cleanliness of the inside of the motor, and reduce the noise generated by the axial flow fan and the rotation of the shaft, and improve the quietness of the motor. It works well.

Description of drawings

1 is a schematic structural diagram of an AC reluctance synchronous motor according to the present invention;

Figure 2 is a main cross-sectional view of an AC reluctance synchronous motor according to the present invention;

Fig. 3 is a connection diagram of the housing, the nail core, the stator winding, the rotor and the rotating shaft in an AC reluctance synchronous motor according to the present invention;

FIG. 4 is a connection diagram of the housing, the rotating shaft, the movable bearing, the elastic bearing seat and the fixed block in an AC reluctance synchronous motor according to the present invention;

FIG. 5 is a connection diagram of the housing, the rotating shaft and the fixed bearing seat in an AC reluctance synchronous motor according to the present invention. The reference numerals are explained as follows:

1. Motor cover; 2. Housing; 3. Lifting ring; 4. End cover; 5. Shaft; 6. Base; 7. Through hole; 8. Heat dissipation hole; 9. Axial fan; 10. Dust filter 1; 11, silencer cotton; 12, fixed bearing seat; 13, movable bearing; 14, elastic bearing seat; 15, spring; 16, fixed block; 17, sealing ring; 18, semiconductor heat sink; 19, stator core; 20, Stator winding; 21, rotor; 22, key block; 23, junction box; 24, box cover; 25, dustproof net II.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings:

As shown in FIG. 1-FIG. 5, an AC reluctance synchronous motor includes a housing 2, a rotating shaft 5 and a fixed bearing seat 12. Stable support is provided by the housing 2, and the middle of the housing 2 is connected in rotation with some The rotating shaft 5, the fixed bearing seat 12 is nested on both sides of the rotating shaft 5, the fixed bearing seat 12 is connected with the housing 2 by bolts, and a movable bearing 13 is arranged on one side of the fixed bearing seat 12 , the movable bearing 13 is nested on the rotating shaft 5, an elastic bearing seat 14 is nested on the periphery of the movable bearing 13, a spring 15 is welded on one side of the elastic bearing seat 14, and a spring 15 is welded on one side of the spring 15 The fixed block 16 provides stable support for the spring 15. The fixed block 16 is connected with the housing 2 by bolts, and can pass through the fixed bearing seat 12 and the movable bearing 13 when the rotating shaft 5 rotates. Provide rotation support, and the spring 15 can provide elastic force to the elastic bearing seat 14, so that the movable bearing 13 can effectively support the rotating shaft 5, reduce the vibration deviation generated in the process of the rotating shaft 5, and ensure the rotating shaft 5. The rotation is stable and the transmission efficiency of the motor is improved.

In this embodiment, a rotor 21 is nested in the middle of the rotating shaft 5 , a stator core 19 is nested in the casing 2 at a position facing the rotor 21 , and a stator winding 20 is wound on the stator core 19 . A magnetic field can be generated. When the rotor 21 rotates, the reluctance in the magnetic field will change. The magnetic permeability of the horizontal axis and the vertical axis is different. Relying on the change of the magnetic permeability, the synchronous torque is generated to maintain the motor in a certain synchronization. The rotating speed runs, and then the power is output through the rotating shaft 5 .

In this embodiment, one side of the casing 2 is connected with the motor cover 1 by bolts, the other side of the casing 2 is connected with an end cover 4 by bolts, and the rotating shaft 5 is nested through one end of the end cover 4 There is a key block 22, which can protect the internal components of the motor, and the key block 22 facilitates the connection between the motor and the external actuator.

In this embodiment, a heat dissipation hole 8 is formed on a side wall of the motor cover 1, and an axial flow fan 9 is connected to one end of the rotating shaft 5 near the heat dissipation hole 8 by bolts. The rotating shaft 5 rotates together, thereby generating wind power to dissipate heat and reduce the temperature of the motor, and dissipate heat in time through the heat dissipation holes 8 .

In this embodiment, the inner wall of the housing 2 is bonded with a semiconductor heat sink 18. The semiconductor heat sink 18 has the same structural principle as the prior art, which can absorb and export heat in time, improve the heat dissipation and cooling effect of the motor, and ensure the motor The working temperature is normal, the working efficiency of the motor is improved, the energy consumption is reduced, and at the same time, the accident of overheating and damage to the motor can be avoided, and the safety of use can be improved.

In this embodiment, one side of the axial flow fan 9 is provided with a second dust filter 25 , the other side of the axial flow fan 9 is provided with a first dust filter 10 , and one side of the first dust filter 10 is provided with a noise reduction The cotton 11, the second dustproof net 25, the first dustproof net 10 and the muffler cotton 11 are all nested and connected to the motor cover 1, which can effectively prevent dust from entering and ensure the cleanliness inside the motor. The muffler cotton 11 can reduce the noise generated by the rotation of the axial flow fan 9 and the rotating shaft 5, improve the quietness of the motor operation, and has a good use effect.

In this embodiment, a sealing ring 17 is nested between the end cover 4 and the housing 2 , which can ensure the compactness of the connection between the end cover 4 and the housing 2 .

In this embodiment, a lifting ring 3 is connected to the middle part of the upper end of the casing 2 by bolts, which is convenient for lifting the motor and improves the transportability of the motor.

In this embodiment, a junction box 23 is welded on a side wall of the casing 2, the bottom of the junction box 23 penetrates the casing 2, and a box cover 24 is connected to the junction box 23 by bolts, which is convenient for external connection power supply, so that the motor can be powered to work.

In this embodiment, the bottom end of the housing 2 is welded with a base 6, and a through hole 7 is formed on the base 6, which can provide stable support for the motor and be installed and fixed.

The specific working principle is as follows: the lifting ring 3 is used to facilitate the lifting of the motor to improve the transportability of the motor, and the base 6 provides stable support for the motor. The motor is fixed and installed, and the external power supply is connected through the junction box 23 to make the motor work with electricity. The stator core 19 is wound with the stator winding 20 to generate a magnetic field. When the rotor 21 rotates, the magnetic field is The magnetic resistance of the motor will change. The magnetic permeability of the horizontal axis is different from that of the vertical axis. Relying on the change of the magnetic permeability, the synchronous torque is generated to keep the motor running at a certain synchronous speed, and then the power is output through the rotating shaft 5. When all the When the rotating shaft 5 rotates, the fixed bearing seat 12 and the movable bearing 13 provide rotational support, and the elastic bearing seat 14 supporting the movable bearing 13 will be under the elastic force of the spring 15 to ensure the The rotating shaft 5 rotates stably, reduces the vibration deviation generated in the process of the rotating shaft 5, and improves the transmission efficiency of the motor. When the rotating shaft 5 rotates, it can also drive the axial flow fan 9 to rotate, blowing and cooling the inside of the motor. And the hot air is discharged through the heat dissipation holes 8. At the same time, the semiconductor heat sink 18 can absorb and export heat in time, improve the heat dissipation and cooling effect of the motor, ensure the normal working temperature of the motor, improve the working efficiency of the motor, reduce energy consumption, and at the same time It can avoid the accident of overheating and damage the motor, and improve the safety in use. The cleanliness inside the motor is improved, and the noise generated by the rotation of the axial fan 9 and the rotating shaft 5 can be reduced by the muffler cotton 11, the quietness of the motor operation is improved, and the use effect is better, thereby improving the user experience.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Various changes and modifications fall within the scope of the claimed invention.

Claims (10)

1. An alternating current reluctance synchronous machine characterized by: including casing (2), pivot (5) and fixed bearing frame (12), casing (2) middle part is rotated and is connected with pivot (5), pivot (5) both sides nested connection has fixed bearing frame (12), fixed bearing frame (12) with casing (2) are through bolted connection, fixed bearing frame (12) one side is provided with loose bearing (13), loose bearing (13) nestification is in pivot (5) are last, loose bearing (13) periphery nestification has elastic bearing frame (14), the welding of elastic bearing frame (14) one side has spring (15), the welding of spring (15) one side has fixed block (16), fixed block (16) with casing (2) pass through bolted connection.

2. An alternating current reluctance synchronous machine according to claim 1, wherein: rotor (21) have been nested in pivot (5) middle part, just in casing (2) rotor (21) position nestification has stator core (19), the winding has stator winding (20) on stator core (19).

3. An alternating current reluctance synchronous machine according to claim 1, wherein: casing (2) one side has motor cover (1) through bolted connection, casing (2) opposite side has end cover (4) through bolted connection, pivot (5) pass end cover (4) one end nestification has key piece (22).

4. An alternating current reluctance synchronous machine according to claim 3, wherein: a heat dissipation hole (8) is formed in one side wall of the motor cover (1), and one end, close to the heat dissipation hole (8), of the rotating shaft (5) is connected with an axial flow fan (9) through a bolt.

5. An alternating current reluctance synchronous machine according to claim 1, wherein: and a semiconductor cooling fin (18) is adhered to the inner wall of the shell (2).

6. An alternating current reluctance synchronous machine according to claim 4, wherein: one side of the axial flow fan (9) is provided with a second dust screen (25), the other side of the axial flow fan (9) is provided with a first dust screen (10), one side of the first dust screen (10) is provided with silencing cotton (11), and the second dust screen (25), the first dust screen (10) and the silencing cotton (11) are all connected with the motor cover (1) in a nested mode.

7. An alternating current reluctance synchronous machine according to claim 3, wherein: and a sealing ring (17) is nested between the end cover (4) and the shell (2).

8. An alternating current reluctance synchronous machine according to claim 1, wherein: the middle part of the upper end of the shell (2) is connected with a hanging ring (3) through a bolt.

9. An alternating current reluctance synchronous machine according to claim 1, wherein: a junction box (23) is welded on one side wall of the shell (2), the bottom of the junction box (23) penetrates through the shell (2), and a box cover (24) is connected to the junction box (23) through bolts.

10. An alternating current reluctance synchronous machine according to claim 1, wherein: the bottom welding of casing (2) has base (6), the shaping has through-hole (7) on base (6).

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