CN212752100U

CN212752100U - Permanent magnet speed regulation clutch structure

Info

Publication number: CN212752100U
Application number: CN202021410090.9U
Authority: CN
Inventors: 吴静; 吴义敏
Original assignee: Nanjing Wolff Magneto Power Technology Co ltd
Current assignee: Nanjing Wolff Magneto Power Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-03-19
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a permanent magnetism speed governing clutch structure, concretely relates to permanent magnetism speed governing technical field, including motor, conductor rotor, permanent magnet rotor and air gap, seted up on the lateral wall of air gap and adjusted the chamber, and the elastic friction cover dish of suit on the chamber wall in regulation chamber, conductor rotor is close to one side of permanent magnet rotor and installs the sealed cover to adjusting the chamber seal, conductor rotor is last to be seted up and to adjust the communicating heat dissipation chamber in chamber, and the cover is equipped with the heat dissipation pole in the heat dissipation chamber, the heat dissipation pole is kept away from the one end in regulation chamber and is extended to conductor rotor's outside through friction cover dish. The utility model discloses, under the combined action of components such as regulation chamber, friction cover dish and heat dissipation chamber, heat dissipation pole, in time, effectual conduction, cooling and heat dissipation work are carried out to the hot gas flow in the air gap, guarantee operational environment's stability.

Description

Permanent magnet speed regulation clutch structure

Technical Field

The utility model relates to a permanent magnet speed governing technology field, more specifically say, the utility model relates to a permanent magnetism speed governing clutch structure.

Background

The permanent magnet speed regulator has the characteristics of simple structure, reliable operation and energy conservation and consumption reduction, is well applied to the modern industry, is mainly applied to the energy conservation of motor dragging systems in the industries of petroleum, petrifaction, electric power, mines, steel, chemical engineering, cement and the like, and mainly comprises a permanent magnet rotor, a conductor rotor and a speed regulating mechanism.

In the process that the conductor rotor and the permanent magnet rotor relatively rotate, the output torque on the load shaft is changed by adjusting the air gap between the permanent magnet rotor and the conductor rotor, so that the change of the load rotating speed is realized, but the air gap is rapidly heated in the long-time rotating process, and great adverse effects are brought to the normal work and the service life of the permanent magnet rotor and the permanent magnet rotor.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a permanent magnetism speed governing clutch structure, including motor, conductor rotor, permanent magnet rotor and air gap, seted up on the lateral wall of air gap and adjusted the chamber, and the elastic friction cover dish of suit on the chamber wall in regulation chamber, conductor rotor is close to one side of permanent magnet rotor and installs the sealed cover to adjusting the chamber seal, conductor rotor is last to be seted up and to adjust the communicating heat dissipation chamber in chamber, and the cover is equipped with the heat dissipation pole in the heat dissipation chamber, the heat dissipation pole is kept away from the one end in regulation chamber and is extended to conductor rotor's outside through friction cover dish.

In a preferred embodiment, the size of the friction cover disc is matched with the size of the adjusting cavity, and the inner diameter values of two ends of the adjusting cavity are gradually changed.

In a preferred embodiment, the part of the heat dissipation rod positioned in the inner cavity of the heat dissipation cavity is not in contact with the wall of the inner cavity of the heat dissipation cavity, and the joint of the heat dissipation cavity and the conductor rotor is connected seamlessly.

In a preferred embodiment, the heat dissipation rod is uniformly provided with grooves at the outer part, and the grooves are distributed in a spiral shape.

In a preferred embodiment, the heat dissipation cavity is provided with a thermal expansion hole for thermal expansion in the middle, the thermal expansion hole is conical, and one end of the thermal expansion hole, which is far away from the adjusting cavity, penetrates through the heat dissipation rod during thermal expansion.

Drawings

FIGS. 1-3 are schematic structural views of a conductor rotor and a permanent magnet rotor in the prior art;

fig. 4 is a schematic view of the overall structure of the present invention;

FIG. 5 is a schematic side sectional view of the present invention;

FIG. 6 is a schematic view of the overall structure of the externally-arranged slot of the heat-dissipating rod of the present invention;

FIGS. 7-8 are schematic views of the overall structure of the heat-dissipating bar of the present invention with thermal expansion holes;

fig. 9 is a partially enlarged schematic view of the structure at a in fig. 5 according to the present invention;

fig. 10 is a partially enlarged view of the structure shown at B in fig. 6 according to the present invention; 52

Fig. 11 is a partially enlarged view of the structure at C in fig. 8 according to the present invention.

Description of reference numerals: the motor comprises a motor 1, a conductor 2 rotor, a permanent magnet 3 rotor, an air gap 4, a 51 adjusting cavity, a friction cover 52, a 53 sealing sleeve, a 61 heat dissipation cavity, a 62 heat dissipation rod, a 63 external groove and a 64 thermal expansion hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

As shown in fig. 1-11, a permanent magnet speed-adjusting clutch structure includes a motor 1, a conductor rotor 2, a permanent magnet rotor 3 and an air gap 4, a regulation cavity 51 is formed on a side wall of the air gap 4, an elastic friction cover disc 52 is sleeved on a cavity wall of the regulation cavity 51, a sealing sleeve 53 sealed with the regulation cavity 51 is installed on one side of the conductor rotor 2 close to the permanent magnet rotor 3, a heat dissipation cavity 61 communicated with the regulation cavity 51 is formed on the conductor rotor 2, a heat dissipation rod 62 is sleeved in the heat dissipation cavity 61, one end of the heat dissipation rod 62 far from the regulation cavity 51 extends to the outside of the conductor rotor 2 through the friction cover disc 52, the conductor rotor 2 and the permanent magnet rotor 3 extrude the friction cover disc 52 in the air gap 4 in the relative rotation process, the friction cover disc 52 is extruded to one side close to the regulation cavity 51 passively, an air flow is generated in the regulation cavity 51, and the hot air flow impacts on the heat dissipation, the heat dissipation rod 62 plays an effective role in heat dissipation and cooling, and the heat dissipation rod 62 is made of a heat dissipation and cooling conductive material in the prior art.

The size of friction cover dish 52 and the size looks adaptation of adjusting chamber 51 and the internal diameter value of adjusting chamber 51 both ends gradually change, when conductor rotor 2, permanent magnet rotor 3 and friction cover dish 52 extrude relatively, can produce bigger extrusion force through footpath value gradual change, dissimilar friction cover dish 52, make the air current more efficient impact on the cooling rod 62 in adjusting chamber 51, cooling, the thermal diffusivity of cooling rod 62 are better.

The part of the heat dissipation rod 62, which is positioned in the inner cavity of the heat dissipation cavity 61, is not in contact with the inner cavity wall of the heat dissipation cavity 61, and the joint of the heat dissipation cavity 61 and the conductor rotor 2 is in seamless connection; grooves are uniformly distributed on the outer part of the heat dissipation rod 62 and are spirally distributed; while the sealing performance of the heat dissipation cavity 61 and the heat dissipation rod 62 on the conductor rotor 2 is ensured, the gap between the heat dissipation rod 62 and the heat dissipation cavity 61 enables hot air to flow onto the heat dissipation cavity 61 through the gap, and the heat dissipation and cooling effectiveness of the heat dissipation rod 62 is further improved while the fluidity of the air flow entering the heat dissipation cavity 61 through the adjusting cavity 51 is increased.

The middle part of the heat dissipation cavity 61 is provided with a thermal expansion hole 64, the thermal expansion hole 64 is conical, one end of the heat dissipation hole, which is far away from the adjusting cavity 51, penetrates through the heat dissipation rod 62 during thermal expansion, the air pressure in the adjusting cavity 51 and the air gap 4 is too large, the temperature is too high, and when the heat dissipation rod 62 is not enough for effective heat dissipation, the air flow impacts the heat dissipation rod 62 to enable the thermal expansion hole 64 to expand and deform and penetrate through the heat dissipation rod 62, and hot air flows out through the thermal expansion hole 64 to be guided out, so that effective heat dissipation and temperature reduction are performed.

It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present disclosure. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.

Claims

1. The utility model provides a permanent magnetism speed governing clutch structure, includes motor, conductor rotor, permanent magnet rotor and air gap, characterized in that: the adjusting cavity is formed in the side wall of the air gap, an elastic friction cover disc is sleeved on the cavity wall of the adjusting cavity, a sealing sleeve for sealing the adjusting cavity is installed on one side, close to the permanent magnet rotor, of the conductor rotor, a heat dissipation cavity communicated with the adjusting cavity is formed in the conductor rotor, a heat dissipation rod is sleeved in the heat dissipation cavity, and one end, far away from the adjusting cavity, of the heat dissipation rod extends to the outside of the conductor rotor through the friction cover disc.

2. The permanent magnet speed governing clutch structure of claim 1, wherein: the size of the friction cover disc is matched with that of the adjusting cavity, and the inner diameter values of two ends of the adjusting cavity are gradually changed.

3. The permanent magnet speed-adjusting clutch structure according to claim 1 or 2, characterized in that: the part of the radiating rod, which is positioned in the inner cavity of the radiating cavity, is not contacted with the wall of the inner cavity of the radiating cavity, and the connecting part of the radiating cavity and the conductor rotor is in seamless connection.

4. The permanent magnet speed governing clutch structure of claim 1, wherein: the outside equipartition of heat dissipation pole is fluted, the recess becomes the heliciform and distributes.

5. The permanent magnet speed-adjusting clutch structure according to claim 1 or 4, characterized in that: the middle part of the heat dissipation cavity is provided with a thermal expansion hole for thermal expansion, the thermal expansion hole is conical, and one end of the thermal expansion hole, which is far away from the adjusting cavity, penetrates through the heat dissipation rod during thermal expansion.