CN212258696U

CN212258696U - Rotor structure for high-voltage generator

Info

Publication number: CN212258696U
Application number: CN202021241117.6U
Authority: CN
Inventors: 王远锋; 石斌; 吴红; 龚羊飞; 王章文
Original assignee: Anhui Evotec Power Generation Co ltd
Current assignee: Anhui Evotec Power Generation Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-12-29
Anticipated expiration: 2030-06-30

Abstract

The utility model belongs to the technical field of generator accessories, in particular to a rotor structure for a high-voltage generator, which comprises a rotor core and a rotating shaft, wherein the rotating shaft is fixedly arranged at the central axis of the rotor core, the two ends of the rotating shaft extend to the two sides of the rotor core, two groups of fan components are sleeved outside the rotating shaft and are respectively positioned at the two sides of the rotor core, and the fan components and the rotating shaft synchronously rotate; the outside of rotor core is equipped with a set of radiator unit at least, radiator unit and rotor core's surface fixed connection has overcome prior art's not enough, utilizes the fan to take away the heat of heat dissipation through-hole and radiating ring transmission with higher speed the axial flow of air around the rotor, improves rotor structure's heat dispersion.

Description

Rotor structure for high-voltage generator

Technical Field

The utility model belongs to the technical field of the generator accessory, concretely relates to a rotor structure for high voltage generator.

Background

In order to improve the reliability and safety requirements of power supply, a high-voltage power supply system needs to be matched with a disaster prevention and emergency standby diesel engine high-voltage generator set, in addition, the internet is rapidly developed, particularly a large-scale data center, the capacity of the internet is gradually enlarged, the long-distance power transmission has great advantages, a machine room can be intensively constructed, the loss in the power transmission and distribution process is small, the matched investment cost is low, and the high-voltage power supply is a development trend. With the expansion of the demand of oil and natural gas, the scale development of an offshore oil platform is rapid, and the high voltage of a power supply system is the inevitable direction of the offshore oil platform, so that the development prospect of the offshore oil platform is huge no matter the offshore oil platform is used as a disaster prevention and emergency standby high-voltage generator set or an independent common high-voltage generator set, and a high-voltage generator is one of the most important devices in the offshore oil platform.

The rotor structure is an important part of the high-voltage generator, the rotor can emit a large amount of heat in the working process, and the existing rotor structure is lack of a heat dissipation device; the distance between the rotor and the bearing is very close, the rotor generates heat, the influence on the bearing is more obvious, the bearing temperature is extremely high, the bearing is damaged, and the service life of the motor is further influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotor structure for high voltage generator has overcome the not enough of prior art, utilizes the fan to take away the heat that heat dissipation through-hole and radiating ring transmitted with higher speed the axial flow of air around the rotor, improves rotor structure's heat dispersion.

In order to solve the above problems, the utility model adopts the following technical proposal:

a rotor structure for a high-voltage generator comprises a rotor core and a rotating shaft, wherein the rotating shaft is fixedly arranged on the central axis of the rotor core, two ends of the rotating shaft extend to two sides of the rotor core, two groups of fan assemblies are sleeved on the outer side of the rotating shaft and are respectively positioned on two sides of the rotor core, and the fan assemblies and the rotating shaft synchronously rotate; the outer side of the rotor core is at least sleeved with a group of radiating assemblies, and the radiating assemblies are fixedly connected with the outer surface of the rotor core.

Further, fan assembly mainly includes mount pad and a plurality of flabellum, the mount pad cover is established on the rotation axis, and is a plurality of the flabellum is along the surface evenly distributed of mount pad.

Further, one side that rotor core was kept away from to the mount pad has set firmly connecting sleeve, connecting sleeve sets up in the outside of rotation axis, and connecting sleeve's inner diameter is unanimous with the diameter of rotation axis, a plurality of screw holes have evenly been seted up along circumference on connecting sleeve's surface, screw hole through connecting sleeve just extends to the surface of rotation axis, screw hole female connection has the bolt.

Furthermore, wear to be equipped with a plurality of evenly distributed's locating hole on the mount pad, rotor core's both ends set firmly a plurality of and the reference column of locating hole adaptation.

Further, the radiating component comprises a radiating ring sleeved on the outer side of the rotor core, a gap is formed between the radiating ring and the rotor core, a plurality of radiating fins distributed along the circumferential direction of the radiating ring are fixedly arranged between the radiating ring and the rotor core, and the other ends of the radiating fins are fixed on the outer surface of the rotor core.

Further, a plurality of heat dissipation through holes are formed in the rotor core at intervals along the circumferential direction, and the heat dissipation through holes penetrate through the rotor core along the axial direction.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model relates to a rotor structure for high-voltage generator, novel structure, the effect is showing, accelerates the axial flow of the air around the rotor through the fan and takes away the heat that heat dissipation through-hole and heat dissipation ring transmitted, improves the heat dispersion of rotor structure; fan assembly passes through reference column and bolt fastening, and convenient the dismantlement is changed, the easy access.

Drawings

Fig. 1 is a schematic structural view of a rotor structure for a high voltage generator.

Fig. 2 is a schematic view of a fan assembly in a rotor structure for a high voltage generator.

Fig. 3 is a schematic structural diagram of a heat dissipation assembly in a rotor structure for a high voltage generator.

In the figure: 1. a rotor core; 11. a heat dissipating through hole; 2. a rotating shaft; 3. a fan assembly; 31. a mounting seat; 32. a connecting sleeve; 33. a threaded hole; 34. positioning holes; 35. a fan blade; 4. a heat dissipating component; 41. a heat dissipation ring; 42. and a heat sink.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, the rotor structure for a high voltage generator according to the present invention comprises a rotor core 1 and a rotating shaft 2, wherein the rotating shaft 2 is fixedly disposed at the central axis of the rotor core 1, two ends of the rotating shaft 2 both extend to two sides of the rotor core 1, two sets of fan assemblies 3 are sleeved outside the rotating shaft 2, the two sets of fan assemblies 3 are respectively disposed at two sides of the rotor core 1, and the fan assemblies 3 and the rotating shaft 2 rotate synchronously; the outside of rotor core 1 is equipped with a set of radiator unit 4 at least in the cover, and radiator unit 4 is connected with rotor core 1's surface fixed.

During the use, rotation of rotation axis 2 drives rotor core 1, fan module 3 and radiator unit 4's rotation simultaneously, and radiator unit 4 is with the heat conduction on rotor core 1 surface, and fan module 3 rotates effectual drive air and flows, all takes away the heat on rotor core 1 and the radiator unit 4, plays the effect of heat dissipation cooling to the rotor better

The fan assembly 3 mainly comprises a mounting seat 31 and a plurality of fan blades 35, the mounting seat 31 is sleeved on the rotating shaft 2, and the plurality of fan blades 35 are uniformly distributed along the outer surface of the mounting seat 31; the axial flow of air is accelerated when the fan blades 35 rotate, thereby improving heat dissipation.

A connecting sleeve 32 is fixedly arranged on one side, away from the rotor core 1, of the mounting seat 31, the connecting sleeve 32 is sleeved on the outer side of the rotating shaft 2, the inner diameter of the connecting sleeve 32 is consistent with the diameter of the rotating shaft 2, a plurality of threaded holes 33 are uniformly formed in the surface of the connecting sleeve 32 along the circumferential direction, the threaded holes 33 penetrate through the connecting sleeve 32 and extend to the surface of the rotating shaft 2, and bolts are connected to the threaded holes 33 in an internal thread mode; after the coupling sleeve 32 is fixed to the rotary shaft 2, the mount 31 and the fan blades 35 rotate along with the rotary shaft 2.

For convenience of positioning, a plurality of positioning holes 34 are uniformly distributed in the mounting seat 31 in a penetrating manner, and a plurality of positioning columns matched with the positioning holes 34 are fixedly arranged at two ends of the rotor core 1; during installation, the positioning hole 34 is aligned and connected with the positioning column, so that the position of the installation seat 31 can be fixed, and meanwhile, the surface of the rotating shaft 2 and the threaded hole 33 on the connecting sleeve 32 can also be aligned, so that the bolt is convenient to connect.

The heat dissipation assembly 4 is including establishing the heat dissipation ring 41 in the rotor core 1 outside at the cover, the clearance has between heat dissipation ring 41 and the rotor core 1, a plurality of fin 42 along the circumference distribution of heat dissipation ring 41 have set firmly between heat dissipation ring 41 and the rotor core 1, the surface at rotor core 1 is fixed to the other end of fin 42, the heat on rotor core 1 surface is taken away in heat dissipation ring 41 and the conduction of fin 42, fin 42 follows rotor core 1 and rotates, the heat-sinking capability of fin 42 has been improved, and the setting of fin 42 has increased the cooling surface, the effectual radiating efficiency that promotes.

In order to enhance heat dissipation, a plurality of heat dissipation through holes 11 are formed in the rotor core 1 at intervals along the circumferential direction, the heat dissipation through holes 11 axially penetrate through the rotor core 1, and the fan blades 35 drive air to flow, so that air is discharged from the heat dissipation through holes 11, and heat generated by the rotor core 1 is taken away.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a rotor structure for high voltage generator, includes rotor core (1) and rotation axis (2), rotation axis (2) set firmly in the axis department of rotor core (1), and the both ends of rotation axis (2) all extend to the both sides of rotor core (1), its characterized in that: two groups of fan assemblies (3) are sleeved on the outer side of the rotating shaft (2), the two groups of fan assemblies (3) are respectively positioned on two sides of the rotor core (1), and the fan assemblies (3) and the rotating shaft (2) rotate synchronously; the outer side of the rotor core (1) is at least sleeved with a group of heat dissipation assemblies (4), and the heat dissipation assemblies (4) are fixedly connected with the outer surface of the rotor core (1).

2. A rotor structure for a high-voltage generator according to claim 1, characterized in that: fan assembly (3) mainly include mount pad (31) and a plurality of flabellum (35), mount pad (31) cover is established on rotation axis (2), and is a plurality of flabellum (35) are along the surface evenly distributed of mount pad (31).

3. A rotor structure for a high-voltage generator according to claim 2, characterized in that: one side that rotor core (1) was kept away from in mount pad (31) has set firmly connecting sleeve (32), connecting sleeve (32) cover is established in the outside of rotation axis (2), and the internal diameter of connecting sleeve (32) is unanimous with the diameter of rotation axis (2), a plurality of screw holes (33) have evenly been seted up along circumference on the surface of connecting sleeve (32), screw hole (33) run through connecting sleeve (32) and extend to the surface of rotation axis (2), screw hole (33) female connection has the bolt.

4. A rotor structure for a high-voltage generator according to claim 2 or 3, characterized in that: a plurality of uniformly distributed positioning holes (34) are arranged on the mounting seat (31) in a penetrating mode, and a plurality of positioning columns matched with the positioning holes (34) are fixedly arranged at two ends of the rotor core (1).

5. A rotor structure for a high-voltage generator according to claim 1, characterized in that: radiating component (4) establish radiating ring (41) in rotor core (1) outside including the cover, the clearance has between radiating ring (41) and rotor core (1), a plurality of fin (42) along radiating ring (41) circumference distribution have set firmly between radiating ring (41) and rotor core (1), the surface at rotor core (1) is fixed to the other end of fin (42).

6. A rotor structure for a high-voltage generator according to claim 1 or 5, characterized in that: a plurality of heat dissipation through holes (11) are formed in the rotor core (1) at intervals along the circumferential direction, and the heat dissipation through holes (11) penetrate through the rotor core (1) along the axial direction.