CN111817458B

CN111817458B - Power generator set

Info

Publication number: CN111817458B
Application number: CN202010654667.9A
Authority: CN
Inventors: 侯国亮
Original assignee: Hebei Kebo Ruicheng Electric Power Engineering Co ltd
Current assignee: Hebei Kebo Ruicheng Electric Power Engineering Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2022-09-06
Anticipated expiration: 2040-07-09
Also published as: CN111817458A

Abstract

The invention provides a generator set. The technical scheme improves the structures of the stator and the rotor, and adds the planetary gear set and the matched gear ring on the transmission structure of the fan, thereby realizing the speed-up function of the fan. Specifically, on the iron core, the groove body for winding the winding is divided into two sections, the two sections are separated by a closing structure, a first interception ring is adopted at the separation position for interception, and based on the structure, two groups of windings can be constructed on a single iron core, so that the magnetic flux of unit volume is improved. In addition, the fan abandons the conventional mode of fixed transmission between the rotating shaft and the fan blades, the driving gear on the rotating shaft is utilized to drive the planetary gear to rotate so as to drive the gear ring on the periphery to rotate, and the gear ring is fixedly connected with the fan blades through the annular transmission part, so that the fan blades surrounding the periphery of the rotating shaft rotate, and the fan blades can rotate at a higher rotating speed than the rotating shaft due to the speed change action generated by the planetary gear and the gear ring, thereby meeting the heat dissipation requirement.

Description

Power generator set

Technical Field

The invention relates to the technical field of power equipment, in particular to a generator set.

Background

The generator set is a complete set of mechanical equipment for converting energy in other forms into electric energy, consists of a power system, a control system, a silencing system, a damping system and an exhaust system, is driven by a water turbine, a steam turbine, a diesel engine or other power machines, converts energy generated by water flow, airflow, fuel combustion or nuclear fission into mechanical energy and transmits the mechanical energy to a generator, and then the mechanical energy is converted into electric energy by the generator and output to electric equipment for use. The generator has wide application in industrial and agricultural production, national defense, science and technology and daily life. With the recent technological progress, lightweight portable small-sized generator sets are also beginning to enter the daily lives of residents as high-quality choices of household emergency power supplies and field trip power supplies.

The generator is generally composed of a stator, a rotor, an end cover, a bearing, and the like. The stator is composed of a stator core, a coil winding, a base and other structural members for fixing the parts. The rotor is composed of rotor iron core (or magnetic pole, yoke) winding, protecting ring, central ring, slip ring, fan and rotary shaft. The stator and the rotor of the generator are connected and assembled by the bearing and the end cover, so that the rotor can rotate in the stator and does the motion of cutting magnetic lines of force, thereby generating induced potential, and the induced potential is led out through the wiring terminal and connected in a loop, thereby forming current. At present, a conventional generator set is mature in structure, but the magnetic flux of the conventional generator set is still low in unit volume, and coils are added on a highly integrated winding, so that the difficulty is high, the coils can be influenced mutually, and the heat dissipation effect is difficult to guarantee. In addition, the conventional generator set generally dissipates heat through air cooling, and if the air cooling module is integrated on the generator set, the air cooling module is usually driven by the rotating shaft, so that the rotating speed of the fan is constantly consistent with the rotating speed of the rotor, and the higher rotating speed of the fan is difficult to obtain under the condition that the rotating speed of the rotor maintains a normal operation level.

Disclosure of Invention

The invention aims to provide a generator set aiming at the technical defects in the prior art, and aims to solve the technical problem that the conventional generator set is difficult to further improve the magnetic flux in the prior art.

Another technical problem to be solved by the present invention is that it is difficult to obtain a high fan speed under the condition that the rotor speed maintains a normal operation level.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

a generator set comprises a stator core, mounting frames, a first inner groove body, a first outer groove body, a first interception ring, a rotating shaft, a rotor core, a second outer groove body, a second inner groove body, a second interception ring, a gland, an outer claw, an inner claw, a sliding ring, a gear box, a planetary gear, a gear ring, a transmission part, a fan blade, a box cover and a protective shell, wherein the iron core is clamped and fixed between the two mounting frames; the rotor core is fixedly connected to the rotating shaft, a second outer groove body and a second inner groove body are respectively formed in the outer edge of the rotor core, and a second intercepting ring is inserted between the second outer groove body and the second inner groove body; the outer edge of the gland is fixedly connected with a plurality of outer clamping jaws, the inner edge of the gland is fixedly connected with a plurality of inner clamping jaws, a sliding ring is fixedly connected between the two mounting frames, the sliding ring surrounds the periphery of the rotor core, the outer clamping jaws of the gland are clamped and fixed on the inner edge of the stator core, and the inner clamping jaws of the gland are clamped and fixed on the sliding ring; the gear box is run through in the pivot, fixedly connected with driving gear in the pivot, the driving gear is connected with the inside planetary gear transmission of gear box, and planetary gear is connected with the ring gear transmission at gear box edge, ring gear and driving medium fixed connection, flabellum fixed connection are on the driving medium, at the terminal fixedly connected with case lid of gear box, at the periphery fixedly connected with protecting crust of stator core and mounting bracket.

Preferably, a stator winding is wound in the first inner slot of the stator core, another stator winding is wound in the first outer slot of the stator core, and the two stator windings are spaced by the first intercepting ring.

Preferably, the first intercepting ring and the second intercepting ring are both made of insulating materials.

Preferably, the gearbox has two sets of planet gears and two ring gears, wherein the driving gear on the rotating shaft is in transmission connection with the first set of planet gears, the first set of planet gears is in transmission connection with the first ring gear on the periphery of the first set of planet gears, the second ring gear surrounds the periphery of the first ring gear, and the second set of planet gears is meshed between the two ring gears.

Preferably, the positioning device further comprises positioning columns, wherein the outer end face of the pressing cover is provided with a plurality of positioning columns, the inner end face of the mounting frame is provided with a plurality of grooves, and the positioning columns are embedded into the grooves.

Preferably, the sealing device further comprises a slit, wherein the gland is provided with a plurality of through slits, the slits are positioned on the same ring, and the circle of the ring is positioned on the axis of the rotating shaft.

Preferably, the blowing direction of the fan blades faces the stator core and the rotor core, and the diameter of the fan blades is not larger than that of the mounting frame.

Preferably, the protective shells are half-shell-shaped, the number of the protective shells is 2, the 2 protective shells are mutually matched to form a complete shell, and the stator core and the mounting frame are all covered in the complete shell.

Preferably, a plurality of hollowed-out parts are arranged on the mounting frame, and the total area of the hollowed-out parts is not less than 3/4 of the total area of the side end face of the mounting frame.

Preferably, the gear box is in a disc shape, and the box cover is fixed at an opening at the outer end of the gear box in a clamping mode.

In the technical scheme, the specifications of the stator core, the rotor core and the slip ring are matched; the mounting frame is used for fixing the stator core and mounting the bearing; the bearing is used for bearing the rotating shaft; on the stator core, a first inner groove body and a first outer groove body are respectively used for winding and connecting two sets of stator windings, and the two sets of stator windings are separated by a first intercepting ring; the rotating shaft is used for driving the rotor core and the fan blades to rotate; on the rotor iron core, a second outer groove body and a second inner groove body are respectively used for winding two sets of rotor windings and are separated by a second intercepting ring; the gland is used for protecting an annular gap formed by the stator core, the rotor core and the sliding ring, and an outer clamping claw and an inner clamping claw on the gland are clamped and fixed with the stator core and the sliding ring respectively, so that the fixation of the gland is ensured; the gearbox is used for accommodating structures such as a driving gear, a planetary gear, a gear ring and the like, wherein the driving gear is fixedly connected to the rotating shaft and used for driving the planetary gear to rotate so as to drive the gear ring on the periphery to rotate, the gear ring is directly and fixedly connected with a ring-shaped transmission member, and meanwhile, the transmission member is fixedly connected with the fan blades so as to rotate the fan blades surrounding the periphery of the rotating shaft (not in contact with the rotating shaft) to play a role in air cooling and heat dissipation; the box cover is used for sealing the port of the gear box; the protective shell may be used to provide structural protection on the exterior of the device.

The invention provides a generator set. The technical scheme improves the structures of the stator and the rotor, and the transmission structure of the fan is additionally provided with the planetary gear set and the matched gear ring, so that the speed increasing effect of the fan is realized. Specifically, on the iron core, the groove body for winding the winding is divided into two sections, the two sections are separated by a closing structure, the first interception ring is adopted at the separation position for interception, and based on the structure, two groups of windings can be constructed on a single iron core, so that the magnetic flux of unit volume is improved. In addition, the fan leaves of the invention abandon the conventional mode of fixed transmission of the rotating shaft and the fan leaves, the driving gear on the rotating shaft is utilized to drive the planetary gear to rotate, and further drive the gear ring on the periphery to rotate, the gear ring is fixedly connected with the fan leaves through the annular driving part, so that the fan leaves surrounding the periphery of the rotating shaft rotate, and the fan leaves can rotate at a rotating speed higher than that of the rotating shaft due to the speed change action generated by the planetary gear and the gear ring, thereby meeting the heat dissipation requirement.

Drawings

FIG. 1 is a perspective view of the present invention as a whole from one perspective;

FIG. 2 is a perspective view of the present invention as a whole from another perspective;

FIG. 3 is a view showing the inside structure of the gear case according to the present invention;

FIG. 4 is a view showing the structure of the fan blade and the transmission member according to the present invention;

FIG. 5 is a view showing the installation structure of a gland at the side end of a stator core in the present invention;

FIG. 6 is a structural view of the fitting position of the stator core and the rotor core in the present invention;

FIG. 7 is a view showing the structure of a gland in the present invention;

fig. 8 is a structural view of a rotor core in the present invention;

FIG. 9 is a structural view of a stator core in the present invention;

FIG. 10 is an exploded view of the present invention as a whole;

in the figure:

1. stator core 2, mounting bracket 3, first inner tank body 4, first outer tank body

5. First interception ring 6, rotating shaft 7, rotor iron core 8 and second outer groove body

9. A second inner groove body 10, a second interception ring 11, a gland 12 and an outer clamping claw

13. Inner jaw 14, slip ring 15, gear box 16, planetary gear

17. Gear ring 18, transmission piece 19, fan blade 20 and box cover

21. A protective shell 22, a positioning column 23 and a slit.

Detailed Description

Hereinafter, specific embodiments of the present invention will be described in detail. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Example 1

A generator set comprises a stator core 1, mounting frames 2, a first inner groove body 3, a first outer groove body 4, a first interception ring 5, a rotating shaft 6, a rotor core 7, a second outer groove body 8, a second inner groove body 9, a second interception ring 10, a gland 11, an outer clamping claw 12, an inner clamping claw 13, a sliding ring 14, a gear box 15, a planetary gear 16, a gear ring 17, a transmission piece 18, fan blades 19, a box cover 20 and a protective shell 21, wherein the iron core 1 is clamped and fixed between the two mounting frames 2, bearings are respectively arranged on the two mounting frames 2, the rotating shaft 6 is connected onto the two bearings, the first inner groove body 3 and the first outer groove body 4 are respectively arranged on the inner edge of the stator core 1, and the first interception ring 5 is inserted between the first inner groove body 3 and the first outer groove body 4; the rotor core 7 is fixedly connected to the rotating shaft 6, a second outer groove body 8 and a second inner groove body 9 are respectively arranged on the outer edge of the rotor core 7, and a second interception ring 10 is inserted between the second outer groove body 8 and the second inner groove body 9; the gland 11 is annular, a plurality of outer claws 12 are fixedly connected to the outer edge of the gland 11, a plurality of inner claws 13 are fixedly connected to the inner edge of the gland 11, a sliding ring 14 is fixedly connected between the two mounting frames 2, the sliding ring 14 surrounds the periphery of the rotor core 7, the outer claws 12 of the gland 11 are clamped and fixed to the inner edge of the stator core 1, and the inner claws 13 of the gland 11 are clamped and fixed to the sliding ring 14; the pivot 6 runs through gear box 15, fixedly connected with driving gear in pivot 6, the driving gear is connected with the transmission of the inside planetary gear 16 of gear box 15, and planetary gear 16 is connected with the ring gear 17 transmission at gear box 15 edge, ring gear 17 and driving medium 18 fixed connection, flabellum 19 fixed connection is on driving medium 18, at the terminal fixedly connected with case lid 20 of gear box 15, at stator core 1 and the periphery fixedly connected with protecting crust 21 of mounting bracket 2.

The device has the following structural characteristics: the specification of the stator core 1 is matched with that of the rotor core 7 and the slip ring 14; the mounting frame 2 is used for fixing the stator core 1 and mounting a bearing; the bearing is used for bearing the rotating shaft 6; on the stator core 1, a first inner groove body 3 and a first outer groove body 4 are respectively used for winding two sets of stator windings and are separated by a first interception ring 5; the rotating shaft 6 is used for driving the rotor core 7 and the fan blades 19 to rotate; on the rotor iron core 7, a second outer groove body 8 and a second inner groove body 9 are respectively used for winding two sets of rotor windings, and the two rotor windings are separated by a second interception ring 10; the gland 11 is used for protecting the annular gap formed by the stator core 1, the rotor core 7 and the sliding ring 14, and the outer clamping claws 12 and the inner clamping claws 13 on the gland 11 are respectively clamped and fixed with the stator core 1 and the sliding ring 14, so that the fixation of the gland 11 is ensured; the gear box 15 is used for accommodating structures such as a driving gear, a planetary gear 16 and a gear ring 17, wherein the driving gear is fixedly connected to the rotating shaft 6 and is used for driving the planetary gear 16 to rotate so as to drive the gear ring 17 on the periphery to rotate, the gear ring 17 is directly and fixedly connected with a transmission piece 18 in a ring sleeve shape, and the transmission piece 18 is fixedly connected with fan blades 19 so as to enable the fan blades 19 surrounding the periphery of the rotating shaft 6 (not in contact with the rotating shaft 6) to rotate and play a role in air cooling and heat dissipation; the case cover 20 is used for closing the port of the gear case 15; the casing 21 may be used for structural protection on the exterior of the device.

Example 2

A generator set is disclosed as figures 1-10 and comprises a stator core 1, mounting frames 2, a first inner tank body 3, a first outer tank body 4, a first interception ring 5, a rotating shaft 6, a rotor core 7, a second outer tank body 8, a second inner tank body 9, a second interception ring 10, a gland 11, an outer clamping claw 12, an inner clamping claw 13, a sliding ring 14, a gear box 15, a planetary gear 16, a gear ring 17, a transmission piece 18, fan blades 19, a box cover 20 and a protective shell 21, wherein the iron core 1 is clamped and fixed between the two mounting frames 2, bearings are respectively arranged on the two mounting frames 2, the rotating shaft 6 is connected on the two bearings, the first inner tank body 3 and the first outer tank body 4 are respectively arranged on the inner edge of the stator core 1, and the first interception ring 5 is inserted between the first inner tank body 3 and the first outer tank body 4; the rotor core 7 is fixedly connected to the rotating shaft 6, a second outer groove body 8 and a second inner groove body 9 are respectively arranged on the outer edge of the rotor core 7, and a second interception ring 10 is inserted between the second outer groove body 8 and the second inner groove body 9; the gland 11 is annular, a plurality of outer claws 12 are fixedly connected to the outer edge of the gland 11, a plurality of inner claws 13 are fixedly connected to the inner edge of the gland 11, a sliding ring 14 is fixedly connected between the two mounting frames 2, the sliding ring 14 surrounds the periphery of the rotor core 7, the outer claws 12 of the gland 11 are clamped and fixed to the inner edge of the stator core 1, and the inner claws 13 of the gland 11 are clamped and fixed to the sliding ring 14; the rotating shaft 6 penetrates through the gear box 15, a driving gear is fixedly connected to the rotating shaft 6, the driving gear is in transmission connection with a planetary gear 16 inside the gear box 15, the planetary gear 16 is in transmission connection with a gear ring 17 at the edge of the gear box 15, the gear ring 17 is fixedly connected with a transmission piece 18, fan blades 19 are fixedly connected to the transmission piece 18, a box cover 20 is fixedly connected to the tail end of the gear box 15, and a protective shell 21 is fixedly connected to the peripheries of the stator core 1 and the mounting frame 2.

Wherein, a stator winding is wound in the first inner slot 3 of the stator core 1, another stator winding is wound in the first outer slot 4 of the stator core 1, and the two stator windings are separated by the first interception ring 5.

The first intercepting ring 5 and the second intercepting ring 10 are both of an insulating material.

In the gear box 15, there are two sets of planet gears 16 and two ring gears 17, wherein the driving gear on the rotating shaft 6 is in driving connection with the first set of planet gears 16, the first set of planet gears 16 is in driving connection with the first ring gear 17 located on the periphery thereof, the second ring gear 17 surrounds the first ring gear 17, and the second set of planet gears 16 is meshed between the two ring gears 17.

The positioning device further comprises positioning columns 22, wherein the outer end face of the gland 11 is provided with a plurality of positioning columns 22, the inner end face of the mounting frame 2 is provided with a plurality of grooves, and the positioning columns 22 are embedded into the grooves. Where the location posts 22 on the outer end face of the gland 11 match the groove format on the inner end face of the mounting bracket 2 and thus help ensure correct positioning during the installation phase.

The sealing device further comprises a slit 23, wherein the gland 11 is provided with a plurality of through slits 23, the slits 23 are located on the same circular ring, and the circle of the circular ring is located on the axis of the rotating shaft 6. The slit 23 is used to play a role of an air gap to prevent the inside of the gland 11 from being in a closed state.

The blowing direction of the fan blades 19 is toward the stator core 1 and the rotor core 7, and the diameter of the fan blades 19 is not greater than that of the mounting frame 2.

The protective shell 21 is half-shell-shaped, 2 protective shells 21 are provided, 2 protective shells 21 are mutually matched to form a complete shell, and the stator core 1 and the mounting frame 2 are covered in the complete shell.

The mounting frame 2 is provided with a plurality of hollowed-out parts, and the total area of the hollowed-out parts is not less than 3/4 of the total area of the side end face of the mounting frame 2.

The gear case 15 is in a shape of a circular disk, and the case cover 20 is fixed at an opening at the outer end of the gear case 15 in a clamping manner.

The embodiments of the present invention have been described in detail, but the description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. Any modification, equivalent replacement, and improvement made within the scope of the application of the present invention should be included in the protection scope of the present invention.

Claims

1. A generator set is characterized by comprising a stator core (1), mounting frames (2), a first inner groove body (3), a first outer groove body (4), a first interception ring (5), a rotating shaft (6), a rotor core (7), a second outer groove body (8), a second inner groove body (9), a second interception ring (10), a gland (11), an outer clamping claw (12), an inner clamping claw (13), a sliding ring (14), a gear box (15), a planetary gear (16), a gear ring (17), a transmission piece (18), fan blades (19), a box cover (20) and a protective shell (21), wherein the iron core (1) is clamped and fixed between the two mounting frames (2), bearings are respectively arranged on the two mounting frames (2), the rotating shaft (6) is connected on the two bearings, the first inner groove body (3) and the first outer groove body (4) are respectively arranged on the inner edge of the stator core (1), a first interception ring (5) is inserted between the first inner tank body (3) and the first outer tank body (4); the rotor iron core (7) is fixedly connected to the rotating shaft (6), a second outer groove body (8) and a second inner groove body (9) are respectively formed in the outer edge of the rotor iron core (7), and a second intercepting ring (10) is inserted between the second outer groove body (8) and the second inner groove body (9); the stator core assembly is characterized in that the gland (11) is annular, a plurality of outer clamping jaws (12) are fixedly connected to the outer edge of the gland (11), a plurality of inner clamping jaws (13) are fixedly connected to the inner edge of the gland (11), a sliding ring (14) is fixedly connected between the two mounting frames (2), the sliding ring (14) surrounds the periphery of the rotor core (7), the outer clamping jaws (12) of the gland (11) are clamped and fixed on the inner edge of the stator core (1), and the inner clamping jaws (13) of the gland (11) are clamped and fixed on the sliding ring (14); pivot (6) run through gear box (15), fixedly connected with driving gear on pivot (6), the driving gear is connected with gear box (15) inside planetary gear (16) transmission, and planetary gear (16) are connected with gear ring (17) transmission at gear box (15) edge, and gear ring (17) and driving medium (18) fixed connection, flabellum (19) fixed connection are on driving medium (18), at terminal fixedly connected with case lid (20) of gear box (15), at the periphery fixedly connected with protecting crust (21) of stator core (1) and mounting bracket (2).

2. A generator set according to claim 1, characterised in that the stator winding is wound in the first inner slot (3) of the stator core (1), and the other stator winding is wound in the first outer slot (4) of the stator core (1), the two stator windings being spaced apart by the first interceptor ring (5).

3. A generator set according to claim 2, characterised in that the first interception ring (5) and the second interception ring (10) are both made of insulating material.

4. A generator set according to claim 1, characterized in that there are two sets of planet gears (16) and two ring gears (17) in the gearbox (15), where the driving gear on the shaft (6) is in driving connection with a first set of planet gears (16), where the first set of planet gears (16) is in driving connection with a first ring gear (17) located at its periphery, where a second ring gear (17) surrounds the first ring gear (17), where the second set of planet gears (16) is engaged between the two ring gears (17).

5. A generator set according to claim 1, further comprising positioning posts (22), wherein the outer end face of the gland (11) has a plurality of positioning posts (22), the inner end face of the mounting frame (2) has a plurality of grooves, and the positioning posts (22) are embedded in the grooves.

6. A generator set according to claim 1, further comprising a slit (23), wherein the gland (11) is provided with a plurality of through slits (23), the plurality of slits (23) are located on the same ring, and the center of the ring is located on the axis of the rotating shaft (6).

7. A generator set according to claim 1, characterized in that the blowing direction of the fan blades (19) is towards the stator core (1) and the rotor core (7), and the diameter of the fan blades (19) is not larger than the diameter of the mounting frame (2).

8. A generator set according to claim 1, characterized in that the protective casing (21) is half-shell shaped, and 2 protective casings (21) are provided, 2 protective casings (21) being mutually fitted to form a complete casing, and the stator core (1) and the mounting frame (2) being housed in said complete casing.

9. A generator set according to claim 1, characterized in that there are several hollowed-out portions on the mounting frame (2), the total area of said hollowed-out portions being not less than 3/4 of the total area of the side faces of the mounting frame (2).

10. A generator set according to claim 1, characterised in that the gear housing (15) is disc-shaped and that the cover (20) is fastened in snap-fit manner in an opening at the outer end of the gear housing (15).