CN212063773U

CN212063773U - Two-pole generator with H280 high-power salient pole integral rotor

Info

Publication number: CN212063773U
Application number: CN202020517406.8U
Authority: CN
Inventors: 陈小桂; 彭飞飞; 徐志强; 万勇
Original assignee: Kangfu Technology Co ltd
Current assignee: Kangfu Technology Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-12-01
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses a two pole generator of whole rotor of high-power salient pole of H280, including frame, motor body includes the pivot and passes through front end housing, rear end cap and frame fixed connection, fixed fan that is provided with in the pivot, tape winding rotor core, be provided with tape winding stator core directly over the tape winding rotor core, the tape winding rotor core includes rotor core, location stick, balancing ring, rotor winding, the side is all fixed around the rotor core is provided with the magnet machine towards the piece, the damping plate is provided with the damping strip on the damping plate, still fixed exciter rotor that is provided with in the pivot, be provided with exciter stator directly over the exciter rotor, the frame upper end is provided with box combination group. The utility model discloses the frame adopts the H280 model, and power is 250 ~ 355kW, and the number of poles is the two poles of the earth, and the rotational speed is 3000r/min, adopts this frame, and the big rotational speed of generator power is high, and small light in weight can satisfy the demand of market to powerful two pole generator well.

Description

Two-pole generator with H280 high-power salient pole integral rotor

Technical Field

The utility model relates to the technical field of electric machines, specifically be a two-pole generator of H280 high-power salient pole monoblock rotor.

Background

Generally, centrifugal force borne by a rotor of a generator and noise generated by a fan are in a positive relation with rotating speed, the rotating speed of a two-pole generator is 3000r/min, compared with the rotating speed of a four-pole generator of 1500r/min, the centrifugal force borne by the rotor and the noise generated by the fan are greatly increased, and the traditional two-pole generator mainly has the following problems due to high rotating speed:

firstly, the power of a two-pole generator of a salient pole rotor is difficult to be increased, the number of a common machine base is H250 or less, the power is below 150kW, and the market requirement is difficult to meet.

And secondly, the two-pole generator with the non-salient pole rotor has the advantages of complex structure, poor process performance, high cost and long production period.

And thirdly, when the high-power two-pole generator runs at a high speed, the noise generated by the fan is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a two-pole generator of H280 high-power salient pole integral rotor, which is characterized in that the two-pole generator comprises a frame and a motor body, wherein the motor body is arranged in the frame and comprises a rotating shaft, the rotating shaft is fixedly connected with the frame through a front end cover and a rear end cover, and a fan is fixedly arranged on the rotating shaft close to the front end cover in the frame;

a rotor core with windings is fixedly arranged on a rotating shaft at one side of the fan, a stator core with windings is arranged right above the rotor core with windings, the stator core with the winding is fixedly arranged at the upper end of the inner side wall of the machine base, the rotor core with the winding comprises a rotor core fixedly arranged on a rotating shaft, a positioning rod for protecting the end part of the rotor winding to penetrate through the front side wall and the rear side wall of the rotor core, a balance ring for balancing the rotor winding and the rotor winding arranged between the positioning rod and the rotating shaft, the front side and the rear side of the rotor core are both fixedly provided with a magnetic machine punching sheet, the surface of the magnetic machine punching sheet is fixedly provided with a damping plate, the magnetic machine punching sheet and the damping plate are both provided with mounting holes matched with positioning rods, the positioning rods are matched and connected with the magnetic machine punching sheet and the damping plate through the mounting holes, and damping strips are arranged on the damping plate;

the utility model discloses a take winding rotor core, including rotor winding, oblique groove, rotor winding and rotor core, the rotor winding is towards the oblique groove of formation, the oblique groove sets up to four groups, two sets of oblique grooves about, set up along pivot horizontal axis symmetry, two sets of oblique grooves about, the horizontal axis setting of pivot is leaned on to the open end in oblique groove, and the oblique groove has increased the distance between rotor winding and the dangerous face, reduces.

Preferably, the exciter includes an exciter rotor and an exciter stator, the exciter rotor is fixedly disposed on a rotating shaft of the base near the rear end cover, the exciter stator is disposed directly above the exciter rotor, the exciter stator is fixedly connected to the rear end cover, a case coupling set is disposed at an upper end of the base, blades of the fan are disposed toward the front end cover, the fan has a backward-inclined arc blade structure, a channel of the backward-inclined arc blade fan is gradually enlarged and is more gradual than the channel of the forward-inclined arc blade fan, and the backward-inclined arc blade fan has a smaller curvature than the forward-inclined arc blade fan, so that the wind loss of the airflow flowing in the channel of the backward-inclined arc blade fan is less than that of the forward-inclined arc blade fan, and the absolute velocity of the airflow transferred by the forward-inclined arc blade fan is greater than that of the backward-inclined arc blade fan, so that the loss of the airflow is greater during energy conversion, the speed that air current and blade fan collided is also great, and retroversion blade fan channel crookedness is gentle in addition, and the air current is also comparatively unobstructed, so retroversion blade fan can reduce the noise that the fan produced when high speed was used by a wide margin and in time dispel the heat that the rotor produced.

Preferably, in order to avoid abrasion between the rotating shaft and the front end cover and between the rotating shaft and the rear end cover, the rotating shaft is rotatably connected with the front end cover and the rear end cover through a front bearing and a rear bearing respectively.

Preferably, for the stability of the convenience of frame operation, the frame lateral wall is provided with the mount, the mount sets up to two sets ofly, and the slope sets up on the lateral wall of frame, the axis symmetry setting of frame along the frame is followed to the mount.

Preferably, the outer side wall of the machine base is provided with radiating fins which are evenly arranged on the outer side wall of the machine base at intervals.

Preferably, the bottom end of the fixing frame is provided with a damping layer.

Preferably, the outer side surfaces of the front end cover and the rear end cover are provided with protective layers, and the damping layer and the protective layers are made of rubber materials.

Preferably, the positioning rods are arranged in 4 groups at minimum, and the positioning rods are symmetrically arranged along the axis of the rotor core.

Preferably, the outer surface of the base is provided with a heat conduction layer, and the heat conduction layer is a heat conduction polyester coating layer.

The utility model has the advantages that

(1) The utility model discloses fixed setting up the fan on the pivot by the front end housing in the frame, the fan adopts the formula of heeling circular arc blade structure, and the formula of heeling circular arc blade groove is crooked slowly, and the air current is smooth and easy, can reduce the noise that the fan produced when high speed is used by a wide margin; a rotor core with windings is fixedly arranged on a rotating shaft on one side of the fan, the rotor core with windings is of a salient pole integral structure with an inclined groove, the inclined groove increases the distance between a rotor winding and a dangerous surface, reduces the bending stress borne by a pole shoe, can improve the strength of the pole shoe, and is high in strength, simple in structure and good in process performance.

(2) The utility model discloses the frame adopts the H280 model, and power is 250 ~ 355kW, and the number of poles is the two poles of the earth, and the rotational speed is 3000r/min, adopts this frame, and the big rotational speed of generator power is high, and small light in weight can satisfy the demand of market to powerful two pole generator well.

Drawings

Fig. 1 is a sectional view of the upper half structure of the main view of the present invention.

Fig. 2 is a front view of the rotor core structure with windings of the present invention.

Fig. 3 is a schematic diagram of a side view of the structure of the rotor core with windings and an oblique slot structure according to the present invention.

Fig. 4 is a front view and a side view of the fan structure of the present invention.

Description of reference numerals: 1-rotating shaft, 2-front end cover, 3-front bearing, 4-fan, 5-base, 6-stator core with winding, 7-rotor core with winding, 8-box combination group, 9-exciter stator, 10-exciter rotor, 11-rear end cover, 12-rear bearing, 13-rotor core, 14-positioning rod, 15-balance ring, 16-rotor winding, 17-magnetic pole punching sheet, 18-damping plate, 19-damping strip, 20-inclined groove and 21-fixing frame.

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.

Example 1

As shown in fig. 1-4, the utility model provides a two-pole generator of H280 high-power salient pole integral rotor, including frame 5, motor body, in this embodiment, frame 5 adopts the H280 model, and power is 250-355 kW, specifically 300kW, and the number of poles is two poles, and the rotational speed is 3000r/min, adopts this frame 5, and the generator power is big the rotational speed is high, and small light in weight can satisfy the demand of market to the generator of high power two poles well; the motor body is arranged in the base 5 and comprises a rotating shaft 1, the rotating shaft 1 is fixedly connected with the base 5 through a front end cover 2 and a rear end cover 11, and in order to avoid abrasion between the rotating shaft 1 and the front end cover 2 and between the rotating shaft 1 and the rear end cover 11, the rotating shaft 1 is rotatably connected with the front end cover 2 and between the rotating shaft 1 and the rear end cover 11 through a front bearing 3 and a rear bearing 12 respectively; a fan 4 is fixedly arranged on the rotating shaft 1 which is positioned in the engine base 5 and close to the front end cover 2, the blades of the fan are arranged towards the front end cover, the fan adopts a backward inclined arc blade structure, the channel in the backward inclined blade fan is gradually enlarged, and is more gentle than the expansion of the channel of the fan with forward-inclined blades, and the bending degree of the fan with backward-inclined blades is smaller than that of the fan with forward-inclined blades, the wind loss of the air flow flowing in the duct of the backward inclined blade fan is smaller than that of the forward inclined blade fan, and the absolute speed of the air flow transmitted by the forward inclined blade fan is larger than that of the backward inclined blade fan, therefore, the loss of the air flow is larger during the energy conversion, the collision speed of the air flow and the blade fan is also larger, in addition, the curvature of the channel of the backward inclined blade fan is gentle, the air flow is smoother, therefore, the backward inclined blade fan can greatly reduce the noise generated when the fan is used at high speed and dissipate the heat generated by the rotor in time; a rotor core 7 with windings is fixedly arranged on the rotating shaft 1 on one side of the fan 4, a stator core 6 with windings is arranged right above the rotor core 7 with windings, the stator core 6 with windings is fixedly arranged at the upper end of the inner side wall of the base 5, the rotor core 7 with windings comprises a rotor core 13 fixedly arranged on the rotating shaft 1, positioning rods 14 for protecting the end parts of rotor windings 16 to penetrate through the front and back side walls of the rotor core 13, balance rings 15 for balancing the rotor windings 16, and rotor windings 16 arranged between the positioning rods 14 and the rotating shaft 1, magnetic machine punching sheets 17 are fixedly arranged on the front and back side surfaces of the rotor core 13, oblique grooves 20 are formed between the magnetic machine punching sheets and the rotating shaft 1, the rotor windings 16 are positioned in the oblique grooves 20, the oblique grooves 20 are arranged into four groups, and the upper and lower oblique grooves 20 are symmetrically arranged along the horizontal axis of the rotating shaft 1, the left and right groups of inclined grooves 20 are symmetrically arranged along the vertical axis of the rotating shaft 1, the open ends of the inclined grooves 20 are arranged by the horizontal axis of the rotating shaft 1, the rotor core 7 with the winding adopts a salient pole integral structure with the inclined grooves 20, the inclined grooves 20 increase the distance between the rotor winding 16 and a dangerous surface, reduce the bending stress borne by the pole shoe, improve the strength of the pole shoe, and have high strength, simple structure and good process performance;

the surface of the magnetic machine punching sheet 17 is fixedly provided with a damping plate 18, the magnetic machine punching sheet 17 and the damping plate 18 are both provided with mounting holes matched with the positioning rods 14, the positioning rods 14 are matched and connected with the magnetic machine punching sheet 17 and the damping plate 18 through the mounting holes, the positioning rods 14 are arranged into at least 4 groups, the positioning rods 14 are symmetrically arranged along the axis of the rotor core 13, and the damping plate 18 is provided with damping strips 19;

an exciter is arranged on one side of the rotor core 7 with the winding, the exciter comprises an exciter rotor 10 and an exciter stator 9, the exciter rotor 10 is fixedly arranged on a rotating shaft 1 which is positioned in the machine base 5 and close to a rear end cover 11, the exciter stator 9 is arranged right above the exciter rotor 10, the exciter stator 9 is fixedly connected with the rear end cover 11, and a box body combination group 8 is arranged at the upper end of the machine base 5; the outer side wall of the base 5 is provided with radiating fins which are uniformly arranged on the outer side wall of the base 5 at intervals, and the radiating performance of the base 5 is effectively improved by arranging the radiating fins on the outer side wall of the base 5, so that heat accumulation is prevented from damaging internal parts of the base 5;

in order to facilitate the stability of the operation of the base 5, the outer side wall of the base 5 is provided with two groups of fixing frames 21, the fixing frames 21 are obliquely arranged on the outer side wall of the base 5, the fixing frames 21 are symmetrically arranged along the axis of the base 5, the bottom end of each fixing frame 21 is provided with a damping layer, the damping effect of the motor during the operation is effectively achieved by arranging the damping layers, the damage to the internal parts caused by the continuous vibration of the base 5 during the operation is prevented, and the service life of the motor is effectively prolonged; the lateral surface of front end housing 2, rear end cap 11 is provided with the inoxidizing coating, buffer layer, inoxidizing coating all adopt the rubber material, through setting up the inoxidizing coating, prevent that the external direct striking to front end housing 2, rear end cap 11 effectively improves crashworthiness and security.

Example 2

As shown in fig. 1 to 4, the present embodiment is further optimized based on embodiment 1, specifically, a heat conducting layer is disposed on an outer surface of the housing 5, and the heat conducting layer is a heat conducting polyester paint layer.

This embodiment is through setting up the heat-conducting layer at 5 surfaces of frame, the heat-conducting layer can further improve 5 holistic heat dispersion of frame, the motor during operation in frame 5, can further play supplementary radiating function, avoid the motor overheat phenomenon to appear, the fault rate of motor has been reduced, the security performance of motor when using has further been improved simultaneously, the heat polyester dope layer is formed by the even coating of heat conduction polyester coating, heat conduction polyurethane has very excellent adhesive force, heat conductivity and curing properties, coefficient of heat conductivity reaches 2.2W/(m.K), be the heat conduction coating that the performance is known at present very excellent, can play very good heat conduction effect.

Principle of operation

The utility model relates to a two-pole generator of H280 high-power salient pole integral rotor, each part distributes as shown in figure 1-figure 4, during the use, pivot 1 passes through front bearing 3, rear bearing 12 through front end housing 2, rear end housing 11 and frame 5 fixed connection, frame 5 adopts the H280 model, the power is 250 ~ 355kW, specifically 300kW, the number of poles is two poles, the rotational speed is 3000r/min, adopt this frame 5, the big rotational speed of generator power is high, small light in weight, can satisfy the demand of market to powerful two-pole generator well; a fan 4 is fixedly arranged on the rotating shaft 1 close to the front end cover 2 in the base 5, the fan 4 adopts a backward inclined arc blade structure, the backward inclined arc blade groove is slowly bent, the air flow is smooth, and the noise generated when the fan 4 is used at a high speed and the heat generated by a rotor can be greatly reduced; a rotor core 7 with windings is fixedly arranged on the rotating shaft 1 on one side of the fan 4, the rotor core 7 with windings adopts a salient pole integral structure with an inclined groove 20, the inclined groove 20 increases the distance between the rotor winding 16 and a dangerous surface, reduces the bending stress borne by a pole shoe, can improve the strength of the pole shoe, and has high strength, simple structure and good process performance; the stator core 6 with winding, the exciter rotor 10 and the exciter stator 9 are fixedly connected to the base 5, the rotating shaft 1 and the rear end cover 11 in sequence; when the motor works, the radiating fins on the outer side wall of the base 5 effectively improve the radiating performance of the base 5, prevent heat accumulation from damaging parts inside the base 5, and the heat conducting layer can further improve the whole radiating performance of the base 5; for the convenience of the stability of 5 operations of frame, 5 lateral walls of frame are provided with mount 21, and the bottom of mount 21 is provided with the buffer layer, and through setting up the absorbing effect of shock attenuation when effectively playing the motor operation of buffer layer, it causes the damage to its inside part to last vibrations when preventing 5 operations of frame, effectively improves the life of motor.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A two-pole generator with an H280 high-power salient pole integral rotor is characterized by comprising a base (5) and a motor body, wherein the motor body is arranged in the base (5) and comprises a rotating shaft (1), the rotating shaft (1) is fixedly connected with the base (5) through a front end cover (2) and a rear end cover (11), and a fan (4) is fixedly arranged on the rotating shaft (1) which is positioned in the base (5) and close to the front end cover (2);

a rotor core (7) with windings is fixedly arranged on a rotating shaft (1) on one side of the fan (4), a stator core (6) with windings is arranged right above the rotor core (7) with windings, the stator core (6) with windings is fixedly arranged at the upper end of the inner side wall of the base (5), the rotor core (7) with windings comprises a rotor core (13) fixedly arranged on the rotating shaft (1), positioning rods (14) for protecting the end parts of the rotor windings (16) to penetrate through the front side wall and the rear side wall of the rotor core (13), a balance ring (15) for balancing the rotor windings (16) and rotor windings (16) arranged between the positioning rods (14) and the rotating shaft (1), magnetic machine punching sheets (17) are fixedly arranged on the front side and the rear side of the rotor core (13), and damping plates (18) are fixedly arranged on the surfaces of the magnetic machine punching sheets (17), the magnetic machine punching sheet (17) and the damping plate (18) are respectively provided with a mounting hole matched with the positioning rod (14), the positioning rod (14) is matched and connected with the magnetic machine punching sheet (17) and the damping plate (18) through the mounting holes, and the damping plate (18) is provided with a damping strip (19);

the utility model provides a rotor winding is including rotor winding, magnetic motor punching sheet (17) and form inclined groove (20) between pivot (1), rotor winding (16) are located in inclined groove (20), inclined groove (20) set up to four groups, two sets of from top to bottom inclined groove (20) set up along pivot (1) horizontal axis symmetry, control two sets of inclined groove (20) set up along pivot (1) vertical axis symmetry, the open end of inclined groove (20) leans on the horizontal axis setting of pivot (1), rotor core (7) one side of taking the winding is provided with the exciter.

2. The H280 two-pole generator with high-power salient pole integral rotor according to claim 1, wherein the exciter comprises an exciter rotor and an exciter stator, the exciter rotor (10) is fixedly arranged on a rotating shaft (1) which is positioned in the base (5) and close to a rear end cover (11), the exciter stator (9) is arranged right above the exciter rotor (10), the exciter stator (9) is fixedly connected with the rear end cover (11), a box body combination group (8) is arranged at the upper end of the base (5), blades of the fan (4) are arranged towards the front end cover, and the fan (4) adopts a back-tilting arc blade structure.

3. The H280 high-power salient pole integral rotor two-pole generator as claimed in claim 1, wherein, in order to avoid abrasion between the rotating shaft (1) and the front end cover (2) and the rear end cover (11), the rotating shaft (1) and the front end cover (2) and the rear end cover (11) are rotatably connected through a front bearing (3) and a rear bearing (12), respectively.

4. The H280 two-pole generator with high-power salient pole integral rotor as claimed in claim 1, is characterized in that in order to facilitate the stability of the operation of the machine base (5), the outer side wall of the machine base (5) is provided with two groups of fixing frames (21), the fixing frames (21) are obliquely arranged on the outer side wall of the machine base (5), and the fixing frames (21) are symmetrically arranged along the axis of the machine base (5).

5. The H280 high-power salient pole monobloc rotor two-pole generator as claimed in claim 1, wherein the outer side wall of the base (5) is provided with cooling fins which are arranged at equal intervals on the outer side wall of the base (5).

6. The H280 high-power salient pole monobloc rotor two-pole generator of claim 4, wherein the bottom end of the fixed frame (21) is provided with a shock absorption layer.

7. The H280 two-pole generator with the high-power salient pole integral rotor as claimed in claim 6, wherein the outer side surfaces of the front end cover (2) and the rear end cover (11) are provided with protective layers, and the damping layers and the protective layers are made of rubber.

8. The H280 high-power salient pole monobloc rotor two-pole generator of claim 1, wherein the positioning bars (14) are arranged in 4 groups at minimum, and the positioning bars (14) are arranged symmetrically along the axis of the rotor core (13).

9. The H280 high-power salient pole integral rotor two-pole generator as claimed in claim 5, wherein the outer surface of the base (5) is provided with a heat conducting layer, and the heat conducting layer is a heat conducting polyester coating layer.